Abstract: A cooling system of a light emitting diode (LED) lamp includes: a circulatory pipe, a pump, an LED cooling module and a power source cooling module, wherein the LED cooling module is a fluid cooling mechanism for an LED lamp, the power source cooling module is a fluid cooling mechanism for an LED lamp power source module, the circulatory pipe is connected to the LED cooling module and the power source cooling module, the pump is assembled to the circulatory pipe, causing a fluid in the circulatory pipe to flow through the LED cooling module and the power source cooling module and form a circulatory flow, thereby achieving a cooling and temperature reducing function of the LED lamp and the power source module at the same time.

Abstract: A solid state lighting (SSL) with a solid state emitter (SSE) having thermally conductive projections extending into an air channel, and methods of making and using such SSLs. The thermally conductive projections can be fins, posts, or other structures configured to transfer heat into a fluid medium, such as air. The projections can be electrical contacts between the SSE and a power source. The air channel can be oriented generally vertically such that air in the channel warmed by the SSE flows upward through the channel.

Abstract: A retrofit light bulb (1) is disclosed. The retrofit light bulb (1) comprises a substantially flat heat spreader (2) having an opening (5); first and second cover members (7, 8) sandwiching the heat spreader (2), each cover member (7, 8) having a protruding portion (9, 10) directed away from the heat spreader (2) and aligned with the opening (5), the two protruding portion (9, 10) together forming a compartment (11); and one or more solid state lighting devices (18) mounted on a carrier (19) arranged in said compartment (11), in thermal contact with the heat spreader (2), wherein said one or more solid state lighting devices (18) are arranged so that each protruding portion (9, 10) receives light directly from each solid state lighting device (18). The compartment thus forms a single light mixing chamber in which light emitted by all of the SSL devices is mixed.

Abstract: A user interface assembly for a household appliance is designed and adapted to provide good lighting execution maintaining a directly coupled touch field unit. The user interface includes a decorative overlay, a structural light box, and a printed circuit board with an integrated touch field unit and plurality of top-fire LED. The printed circuit board is mounted to a mounting frame extending from the inner surface of the structural light box without the use of adhesive. The structural light box is box includes a conical light aperture and dimensioned to maximize thickness to improve lighting diffusion, but keeping the overall thickness of the structural light box within the maximum range acceptable for optimal functionality and sensitivity of the touch field unit through direct coupling.

Abstract: Waste heat is extracted in two stages from the exhaust (20) of a biomass dryer (14) in a grain alcohol plant (10). A boiler circuit (56) provides high pressure steam to a balance of the plant (54). A first energy recovery circuit (36) extracts heat from the exhaust via a non-contact heat exchanger (24) and provides a first relatively lower pressure steam (78) to the balance of the plant, thereby bypassing a portion of the boiler circuit. Working fluids in the boiler and first energy recovery circuits are maintained within boiler water quality specifications and are intermixed to allow the production of the first relatively lower pressure steam without a pressure reduction device. A second energy recovery circuit (44) extracts heat from the exhaust downstream of the first energy recovery circuit using a direct contact heat exchanger (38) and provides a non-boiler quality heated fluid (52) to the balance of the plant.

Abstract: A control system for controlling a steam turbine power plant having multiple steam flow paths that converge to a combined steam path controls the final steam temperature of the steam input into the turbine by controlling one or more temperature control devices in each of the steam flow paths. The control system includes a multivariable controller, such as a multi-input/multi-output (MIMO) controller, that produces two control signals that control each of a set of downstream control valves in the split steam flow paths. The controller receives two inputs in the form of measured or calculated process variables including the final steam temperature and the inter-stage temperature difference between the steam being produced in each of the two split steam paths and performs multi-objective control based on these inputs.

Abstract: A burner system that employs a perforated flame holder and is configured to combust a powdered solid fuel includes a structure configured to protect the perforated flame holder from erosion caused by particles of the solid fuel.

Abstract: A burner includes plural burner ports that produce flames using a first air-fuel mixture and plural auxiliary burner ports that are disposed in a circumference of the burner ports, the plurality of the auxiliary burner ports producing an auxiliary flame using a second air-fuel mixture whose an air ratio is different from an air ratio of the first air-fuel mixture. The air ratios of the first air-fuel mixture and the second air-fuel mixture are each higher than 1.

Abstract: A burner system (100) for the combustion of a hydrocarbon feedstock with an oxidant, comprising at least one burner (1) and a cooling circuit (2), where in: the burner system(100) comprises a fuel side (3, 15) and an oxidant side (4, 14); the burner (1) comprises a cooling chamber (5) connected to said cooling circuit(2); said cooling circuit (2) comprises a reservoir tank(8) for said cooling fluid and a circulation pump(16); said system (100) comprises pressure equalizing line (15b) arranged to establish a fluid communication between the inside of said reservoir tank (8) and at least one of said fuel side and oxidant side.

Abstract: In this combustion burner and boiler, interference of ignition in a flame stabilizer is suppressed and flame stabilizing performance is improved by providing: a fuel nozzle which ejects a fuel gas that is a mixture of pulverized coal and air; a combustion air nozzle which ejects a fuel gas combustion air from outside of the fuel nozzle; a secondary air nozzle which ejects secondary air from the outside of the combustion air nozzle; and a flame stabilizer which comprises a first flame stabilizer main body which is arranged at the leading end of the fuel nozzle and separated by a prescribed space from the inner wall surface of the fuel nozzle and which forms a ring shape having as the center an axial line along the ejection direction of the fuel gas.

Abstract: A gas analysis device includes: a measurement part configured to measure an absorption amount of a laser light including an absorption wavelength corresponding to at least two electronic level transitions having the same component contained in the combustion gas, by emitting the laser light on a plurality of measurement paths disposed to pass through the combustion gas; a standard setting part configured to set a standard gas concentration distribution and a standard temperature distribution on the basis of a measurement result of the measurement part; and an analysis part configured to obtain the gas concentration distribution and the temperature distribution by solving a function including the gas concentration distribution and the temperature distribution as variables so as to minimize a difference between the absorption amount measured by the measurement part and a standard absorption amount obtained on the basis of the standard gas concentration distribution and the standard temperature distribution.

Abstract: A fire starter may include a fire starting mechanism comprising a friction wheel, an axle, a flint, a spring, and a screw. The fire starter also may include a housing and a capsule with a storage compartment therein. The capsule may be attachable to the main housing. The axle may pass through the friction wheel and be screwed or pressed into the housing. Ignition may be created by the spring pressing the flint into the friction wheel, with the screw holding the spring and flint in place such that when the friction wheel is rotated, a spark is generated. The friction wheel may be attached to the housing by the axle at to a single connection point, and the housing may be attached to a tinder removal device, which may be positionable within the storage compartment of the capsule when the housing and the capsule are attached together.

Abstract: A lighter comprises a container that is configured to hold a liquid fuel, a cap attachable to a top portion of the container, a fuel cap attachable to a bottom portion of the container, a first watertight seal formed by a first sealing element between the cap and the container, and a second watertight seal formed by a second sealing element between the fuel cap and the container.

Abstract: The automatic flame extinguisher may include a base for selectively positioning the automatic flame extinguisher in relation to a candle. A lid coupled to the base may selectively rotate about a pivot between a first open position that allows a burning wick of the candle to receive sufficient ambient oxygen to continue burning and a second closed position to extinguish the burning wick of the candle. In this respect, a timer may include a clock for selectively activating the pivot to reposition the lid from the first open position to the second closed position after the clock reaches a threshold operation time.

Abstract: Formed in a wall part of a dome part of an annular combustor encircling an axis of a gas turbine engine are multiple fuel supply holes spaced at predetermined intervals in circumferential direction around the axis and many cooling holes extending through the wall part in direction inclined to a normal thereof. When two adjacent fuel supply holes are defined as first and second fuel supply holes, a virtual boundary line contacting an outer semi-circular portion, far from the axis, of the first fuel supply hole and an inner semi-circular portion, close to the axis, of the second fuel supply hole is set. The first cooling holes in region radially outward, relative to the axis, of the line are inclined toward the second fuel supply hole, and the second cooling holes in region radially inward, relative to the axis, of the line are inclined toward the first fuel supply hole.

Abstract: A combustion chamber assembly comprises a combustion chamber and a plurality of nozzle guide vanes. Each nozzle guide vane comprises an inner platform, an outer platform and an aerofoil. The combustion chamber comprises an annular wall which includes at least one box like structure. An outer wall of each box has a plurality of apertures for the supply of coolant into the box and the interior of the box is divided into at least two regions. The upstream end of each box has apertures to supply coolant from a first region of its interior onto an inner surface of the inner wall to form a film of coolant. The downstream end of each box has apertures to supply coolant from a second region of its interior onto a surface of the inner or outer platform of the nozzle guide vanes to form a film of coolant.

Abstract: The present invention discloses a combustor cap assembly and associated manufacturing process. The process provides a way of forming a dome plate of the cap assembly having improved cooling hole shapes and elimination of potential crack initiation points known to contribute to failures in prior art combustor cap assemblies.

Abstract: A flame-holder device for a reheat channel of a turbojet, the device including an arm in the form of a trough defining a cavity and a heat shield fastened in the cavity of the arm. The flame-holder device further includes a fastener plate including a first leg integrally formed with the fastener plate and a second leg removably mounted on the plate, the arm being fastened to the first and second legs via fastener members.

Abstract: An aerospace component includes a wall with an integral longitudinal wall passage formed therein, the integral longitudinal wall passage including at least one entrance apertures and at least one exit aperture, the exit aperture transverse to the integral longitudinal wall passage. The aerospace component may be additively manufactured.

Abstract: A gas turbine engine combustion chamber comprises upstream and downstream ring structures and a plurality of circumferentially arranged combustion chamber segments. Each segment extends the full length of the combustion chamber and each segment is secured to the upstream ring structure and is mounted on the downstream ring structure. The upstream end of each combustion chamber segment comprises a surface having a plurality of circumferentially spaced radially extending holes and the upstream ring structure having a plurality of circumferentially spaced holes extending radially through a portion abutting the surface of the upstream end of each combustion chamber segment. Each combustion chamber segment being removably secured to the upstream ring structure by a plurality of fasteners locatable in the holes in the combustion chamber segment and corresponding holes in the upstream ring structure.

Abstract: In a structure for cooling a gas turbine engine, an open flange part encircling a fuel supply hole formed in a combustor includes a conical portion enlarging in a conical shape toward an outside of the combustor and a flat portion extending radially outward in a flat plate shape from an extremity of the conical portion, and a nozzle guide includes a cylindrical portion covering an outer periphery of a fuel nozzle for supplying fuel to the fuel supply hole and a bottom flange portion being bent radially outward from a corner portion at an extremity of the cylindrical portion and supported in a floating state on the flat portion. A cooling hole for supplying air that cools the open flange part and the nozzle is formed in the corner portion of the guide, and a direction of the cooling hole is inclined toward an axis of the nozzle.

Abstract: A method of making an aero-derivative gas turbine engine (100) is provided. A combustor outer casing (68) is removed from an existing aero gas turbine engine (60). An annular combustor (84) is removed from the existing aero gas turbine engine. A first row of turbine vanes (38) is removed from the existing aero gas turbine engine. A can annular combustor assembly (122) is installed within the existing aero gas turbine engine. The can annular combustor assembly is configured to accelerate and orient combustion gasses directly onto a first row of turbine blades of the existing aero gas turbine engine. A can annular combustor assembly outer casing (108) is installed to produce the aero-derivative gas turbine engine (100). The can annular combustor assembly is installed within an axial span (85) of the existing aero gas turbine engine vacated by the annular combustor and the first row of turbine vanes.

Abstract: A nozzle guide support device, that supports a nozzle guide of a fuel nozzle on an open flange part encircling a fuel supply hole of a combustor of a gas turbine engine, is foamed by fixing a cap that supports the nozzle guide in a floating state to the open flange part by means of a rivet. Rotation of the nozzle guide relative to the open flange part is restricted by engagement between a recess portion of the nozzle guide and a spacer fitted to the rivet. Accordingly, not only is it possible to cut production time and production cost compared with a case in which the nozzle guide support device is fixed by welding or brazing, but it is also possible to suppress unlimited rotation of the fuel nozzle guide while enabling the fuel nozzle guide to float in a radial direction and a axial direction.

Abstract: The present invention relates to forced air cooking stoves, in particular, to efficient cooking stoves for use by the military, those undertaking general camping or other outdoor leisure pursuits, or by larger groups of people for entertaining or humanitarian purposes. The cooking stoves include a fan to aid combustion, and a collar to focus the exhaust gasses onto the cooking vessel. They are designed to make efficient use of any type of fuel, including biomass such as wood, and solid fuel blocks. They are also designed to minimise the soot deposited on the cooking vessel.

Abstract: A pellet stove includes a hopper for storing pellets, a basket for receiving the pellets by gravity, a duct for conveying combustion air to the basket, and a conduit for conducting heated air away from the basket. The position of the basket is adjustable, such as by raising and lowering it, or by rotating it, so as to control the number of pellets in the area of most intense combustion. One or more burn plates, positioned below the basket, provide platforms on which pellets falling through the basket can burn down to a smaller size. The pellet stove requires no external source of power. The stove so constructed enables quiet, efficient and clean burning of the pellets.

Abstract: A method for controlling gas leak includes a step of providing gas for a pre-set period of time automatically; a step of cutting off gas supply automatically by cutting off electric power for the electro-magnetic valve so that the piston of the electro-magnetic valve seals an opening of an inlet path; a step of checking gas leak by using a pressure detection device in the safety valve to check gas pressure after the gas is filled in the safety valve and the pipe for a period of time, the pressure detection device transferring detected signals to a circuit board, and the detected signals being used as a basis of judgement of gas leak, and a step of supplying gas again and checking the pressure by the pressure detection device.

Abstract: A domestic appliance including a built-in oven configured to be positioned in a cut-out defined in a kitchen. The built-in oven includes a housing having a cooking chamber defined therein, a lower frame positioned below the cooking chamber, and a height adjuster coupled the lower frame. The built-in oven has a first vertical height when the height adjuster is positioned in a first predetermined position and a second vertical height when the height adjuster is positioned in a second predetermined position.

Abstract: A jet plate for directing a flow of air into a cooking cavity of an oven may comprise a body configured to be disposed along a top wall or a bottom wall of the cooking cavity, and one or more structured air inlets that are openings through the body. Each of the structured air inlets comprises holes and slots that are alternatingly arranged and serially connected. The structured air inlets enable air to be introduced into the cooking cavity in a structured formation to improve cooking speed and cooking efficiency. In addition, structured air inlets in a jet plate may be configured in various manners to address unevenness in the distribution of air flow within the cooking cavity.

Abstract: A self-adjusting balance valve controller controls water flow through a hydronic emitter in a heating and/or cooling temperature control system. The valve controller obtains a measured temperature differential between an inlet and an outlet of the hydronic emitter and determines a displacement of a coupling pin from the measured temperature differential. The valve controller then instructs a driving mechanism to move, through a coupling mechanism, the coupling pin to adjust a valve that results in a desired water flow through the hydronic emitter. The valve controller may maintain a stable temperature differential at a desired differential value, which may be obtained through a user interface or from a memory device. Moreover, the desired differential value may vary with different times of operation or temperature control situations.

Abstract: An indoor unit includes axial-flow fans, which are provided on downstream of an air inlet. Further, a plurality of first bars are provided to the air inlet. In plan view, leading edge portions of blades of the axial-flow fan are inclined in a direction of rotation of the axial-flow fan from a rotary shaft side of the axial-flow fan to an outer peripheral side. Further, in plan view, the plurality of the first bars are inclined in a direction opposite to the direction of rotation of the axial-flow fan from the rotary shaft side of the axial-flow fan to the outer peripheral side.

Abstract: In one embodiment of the present disclosure, a heating, ventilating, and air conditioning (HVAC) system includes a refrigerant circuit configured to flow a refrigerant. The refrigerant circuit includes a compressor configured to compress the refrigerant, a condenser configured to receive the refrigerant from the compressor and to condense the refrigerant, a valve configured to receive a first portion of the refrigerant from the condenser and to decrease a pressure of the first portion of the refrigerant, and an evaporator configured to receive the first portion of the refrigerant from the condenser and configured to evaporate the first portion of the refrigerant. The refrigerant circuit also includes a refrigerant sub-circuit configured to receive a second portion of the refrigerant from the condenser and to convert thermal energy of the second portion of the refrigerant to electrical energy.

Abstract: The invention discloses a method and apparatus for retrofitting air conditioning system using all-weather solar heating. In air conditioning system in which original single cold host is equipped with a cooling tower and a boiler, plate heat exchanger, solar collector plate, energy storage tank and circulating pipelines are provided. The cooling tower is used to absorb the heat in the winter air. The solar collector plate is used to absorb solar thermal heat and transfer to the plate heat exchanger. The single cold machine is used to absorb the heat of the antifreeze liquid. The plate heat exchanger is provided to form a secondary cycle so as to avoid icing risk of the antifreeze liquid. At the outdoor temperature more than five degrees, the indoor users is heated without operating the boiler, which maintains summer operation performance and meanwhile increases winter heating function without changing the original system.

Abstract: A cold wind table cabinet includes a main body, inside which a refrigeration device is configured. The refrigeration device includes a housing, blower, and refrigeration box, where refrigeration components are installed inside the refrigeration box. A blower air inlet is in communication with a housing air outlet, a refrigeration air inlet faces and is in communication with a blower air outlet, and a refrigeration air outlet a housing air outlet. Whereby, the present invention allows the table cabinet to have the function of selecting cold wind or natural wind to blow out, and especially, eliminates the configurations of an air fan or air pipe.

Abstract: A control system for an HVAC system. The control system includes a user interface configured to present information to a user and receive inputs from the user. A processor is configured to cause the processor to receive one or more system parameters associated with HVAC system components. The processor is further configured to determine if a maintenance operation is required in response to receiving the one or more system parameters, and to display to the user via the user interface an indication that a maintenance operation is required. The processor is also configured to receive an instruction from the user to initiate the maintenance operation, and to display one or more operational conditions required to be satisfied prior to the maintenance operations being performed. The HVAC components are monitored to determine if the operational conditions are completed, and maintenance instructions are displayed in response to the operational conditions being completed.

Abstract: An intelligent control method of HVAC computer room is disclosed, including steps of: constructing an integrated central processing device, which controls start-stop operations of start-stop devices of each one of equipments, and controls each display unit to display parameters; displaying datas of a sensor unit; controlling the whole system's start-stop operation and the operation of a system protective module, via an one key type start-stop device, and controlling the integrated central processing device through a remote control module. The method in disclosure possesses functions of start-stop with one key, remote control, automatic operation of devices, unmanned operation, and functions of remote checking on operation states, system protection and operation state informations.

Abstract: A residential HVAC system includes, a compressor, and an outdoor unit controller in communication with the compressor. The outdoor unit controller is configured to receive an indoor ambient temperature and a temperature set point. The outdoor unit controller is further configured to determine an outdoor ambient temperature, and to determine an operating value for the compressor based on a percentage of a delta between a minimum operating value of the compressor and a maximum operating value of the compressor, plus the minimum operating value. The minimum operating value and the maximum operating value are based on the determined outdoor ambient temperature. The percentage of the delta is based on a predefined temperature differential multiplier and one or more time dependent multipliers. The outdoor unit controller is further configured to modify the current operating value of the compressor with the determined operating value.

Abstract: An air-conditioning control apparatus is configured to group a plurality of environmental sensors into a plurality of groups, based on correlation coefficients between environmental information acquired by the plurality of environmental sensors. The air-conditioning control apparatus is configured to regularly calculate a correlation coefficient between environmental information acquired by one or more environmental sensors in each of the plurality of groups. The air-conditioning control apparatus is configured to reset, in the case where the calculated correlation coefficient is less than a predetermined value, a group associated with an environmental sensor. The air-conditioning control apparatus is configured to control each of a plurality of air conditioners that are each associated with any of the plurality of groups, based on environmental information acquired by each environmental sensor in the group associated with the air conditioner.

Abstract: Disclosed herein is a method of communicating control unit data from a control unit of a HVAC system to a portable reading device, the control unit comprising a display, the method comprising; generating a code based on said control unit data, converting said code into a graphical layout, and providing said graphical layout via the display. Disclosed herein is also a control unit of a HVAC system comprising a display and a processing unit, said control unit is configured to communicate control unit data, wherein the processing unit is configured to perform said method and the display is configured to provide the graphical layout. The invention further relates to a method of obtaining control unit data with a portable reading device from a control unit of a HVAC system, the method comprising; scanning a graphical layout, generating a code based on the graphical layout, decoding the code by accessing a website, and obtaining the control unit data based on the decoded code.

Abstract: A control system for a HVAC system includes a user interface configured to present information to a user and receive inputs from the user, a temperature sensor configured to measure an air temperature inside of the building space, and a processing circuit. The processing circuit is configured to receive a user-preferred temperature setpoint, compare the user-preferred temperature setpoint to the measured air temperature, project an energy usage amount for the user-preferred energy setpoint, generate a user comfort score for the user-preferred energy setpoint, generate an overall score for the user-preferred temperature setpoint, and present, by the user interface, the user with a setpoint scoring interface including the overall score.

Abstract: An HVAC system includes HVAC components configured to adjust environmental conditions within a space. A control system is in communication with the HVAC components and is configured to execute in an efficiency operation mode. The efficiency operation mode is configured to receive configuration data related to the space and operational values for the HVAC components, monitor environmental parameters such as outdoor ambient temperature, indoor ambient temperature, and occupancy of the space, monitor an energy usage of the HVAC components based on the current operational values, determine new operational values configured to reduce the energy usage for the HVAC components based on the monitored energy usage and the environmental parameters, and transmit the new operating values to the HVAC components.

Abstract: The present disclosure provides an inverter air conditioner control device based on a thermolator, which includes: a first controller, and an input interface, an outdoor unit communicating interface and a detecting interface all connected with the first controller, and an indoor unit controlled by a second controller, wherein, the input interface is connected with the thermolator, receives a control signal sent by the thermolator; the detecting interface is connected with a temperature detector, receives an indoor temperature signal; the first controller connects with a inverter air conditioner outdoor unit, controls an operation of the inverter air conditioner outdoor unit; the first controller sets a target reference temperature which is used for adjusting an operation frequency of a compressor of the inverter air conditioner outdoor unit. The present disclosure also provides a terminal, an inverter air conditioner control system and control method based on the thermolator.

Abstract: A heating, ventilating, and air conditioning (HVAC) includes a processor and a plurality of sensors. The plurality of sensors can collect a first set of data indicative of environmental conditions of a structure in which the HVAC control device is located. The HVAC control device can control operational settings of an HVAC system that can supply conditioned air to the structure and operate the HVAC system in a default mode. The HVAC control device can also receive a second set of data collected by one or more sensors of a secondary input device and receive a signal from the secondary input device. Additionally, the HVAC control device can implement an override mode of the control device based on the signal. Implementation of the override mode effectuates a change in the operational settings of the HVAC system.

Abstract: Methods, systems, and apparatus for controlling an air flow are described. A monitor obtains an environmental parameter and an air deflector controls the air flow exiting an air duct. An air deflector actuator configures the air deflector, the configuration of the air deflector being based on the environmental parameter.

Abstract: An outdoor unit for a building HVAC system includes one or more sensors configured to measure temperature and pressure values. The unit also includes a user interface coupled to the outdoor unit. The user interface is configured to display information to a user. The unit includes a controller including a processing circuit. The processing circuit configured to record the temperature values and the pressure values via the sensors and cause the user interface to display temperature values and pressure values.

Abstract: A heating, ventilation, and air conditioning (HVAC) system includes an outdoor unit having a heat exchanger. The heat exchanger includes a coil configured to route refrigerant therethrough. The HVAC system also includes a motor configured to drive a fan, a motor controller configured to regulate operation of the motor, and a global controller configured to regulate operation of global aspects of the HVAC system. The HVAC system also includes a power sensor configured to detect a power parameter relating to a power input to the motor controller, a power output from the motor controller, or a power input to the motor, wherein the global controller is configured to receive data indicative of the power parameter from the power sensor, and wherein the global controller is configured to analyze the data indicative of the power parameter to detect a frozen coil condition, a fouled coil condition, or both.

Abstract: A panel for self-supporting ducts, in particular air-conditioning ducts, made up of a core of mineral wool or the like, covered on its external face and on its internal face with an exterior covering and an interior covering, respectively. The interior covering includes or preferably is made up of an aluminium sheet a layer of a glass fabric or a layer of a glass web. The exterior covering includes the succession of a first layer of plastics material, an aluminium sheet, and a second layer of plastics material. The layers of plastics material are bonded to the aluminium sheet directly or via an adhesive. The exterior covering is bonded to the external surface of the core by glue.

Abstract: The present invention discloses a design method of an integrated box-type self-contained machine room. The design method comprises the following steps: firstly, selecting equipment parts in line with needs according to requirements of a design drawing for an HVAC system; secondly, optimizing, assembling and connecting the equipment parts, except a host air conditioner, a boiler and a cooling tower; thirdly, integrating the optimized, assembled and connected equipment parts into a protective housing; and finally, integrally testing a water pressure of the protective housing, the equipment parts and joints after washing the protective housing, the equipment parts and the joints, and transporting the same to an installation site of the HVAC system after the water pressure test passes the inspection. The method provided by the invention can improve the installation efficiency of an HVAC machine room and shorten the installation period of the HVAC machine room.

Abstract: An instantaneous heating apparatus is disclosed. The instantaneous heating apparatus according to one embodiment of the present invention comprises: a water inlet part into which water flows from the outside; a flow part in which the water, flowing into the water inlet part, flows; a heating part for heating the water flowing in the flow part; and a water outlet part for discharging, to the outside, the water heated by the heating part, wherein the flow part can comprise: a passage forming member disposed inside the heating part; and a close-pressing part for bringing the passage forming member into close contact with the heating part such that a heating passage is formed between the heating part and the passage forming member.

Abstract: A PTC (Positive Temperature Coefficient) liquid heater, comprising: a heating assembly, comprising: a heat conductor having at least one accommodating cavity, a PTC heat generation assembly disposed in the at least one accommodating cavity, a sheath having a cavity for accommodating the heat conductor and the PTC heat generation assembly, and a housing having a water inlet and a water outlet, wherein the heating assembly at least partially passes through the housing. The PTC liquid heater of the present invention has a better corrosion resistance, and can greatly extend the service life of the liquid PTC heater and prevent electric leakage accidents. The PTC liquid heater has a simple structure and low costs, and is convenient to assemble, especially in that the water pipes can replaced, facilitating future maintenance.

Abstract: A PTC (Positive Temperature Coefficient) heater for liquid heating may include: a heat conductor; a PTC heating assembly; and water pipe assembly. The heat conductor may have a first accommodating duct and a second accommodating duct. The PTC heating assembly at least partially is disposed in the first accommodating duct; moreover, the water pipe assembly at least partially is disposed in the second accommodating duct, with an outer surface of the water pipe assembly at least partially abutting against an inner surface of the second accommodating duct. The PTC liquid heating tube of the present disclosure can achieve a better corrosion resistance and greatly extend the service life of the PTC heater as well as prevent electric leakage accidents. Furthermore, the PTC heater of the present disclosure will have a simple structure and low costs for being convenient to assemble, especially in the replacement of the water pipes for maintaining the PTC heater in future.