Abstract: A water purifier includes a hot water tank for receiving and heating received water by induction heating, a water outlet portion that is at least partially exposed to an outside of the water purifier for discharging hot water, a hot water line that is connected to the water outlet portion to communicate the hot water from the hot water tank to the water outlet portion, a hot water outlet valve that is located at the hot water line and that opens or closes the hot water line based on a control command, a connector that includes a hot water inlet connected to a water outlet pipe of the hot water tank and a hot water outlet connected to the hot water line, and a temperature sensor that is connected to the connector and that is configured to measure a temperature of the hot water that passes through the connector.

Abstract: A dielectrically insulated secondary tubular flue for mounting inside a water holding tank of a gas-fired water heater is provided to increase the efficiency of the water heater. The secondary tubular flue has opposed tubular end sections and an helical tubular section integrally formed therewith. The tubular end sections each have connecting end sections adapted to form a part of a dielectric connector for securing the secondary tubular flue inside of the water holding tank by the dielectric connectors.

Abstract: Flow control devices for convector heaters are provided.

Abstract: The invention is directed to a heating fan (100) with an inner space (110) in which is arranged an air channel (810) which is partially made of plastic. An electric heating body (300) is arranged behind a fan (800) in an air flow direction (821). According to the invention, this fan is constructed such that a fan wheel (801) of a radial fan, which fan wheel (801) is contained in the fan (800), has two suction sides (805, 806) which are separated by a dividing wall (804). During operation, a first air flow (822) is sucked in from outside (1) through the first suction side (805) which is open to a first air inlet opening (221). The second suction side (806) is arranged in a fan space (111) of the heating fan (100) and is pneumatically connected to second air inlet openings (222). The fan is arranged in front of a ceramic heating element (301) of the electric heating body (300) so that the first air flow (822) and the second air flow (823) stream through the heating body (300).

Abstract: A water purifier includes a working coil, a hot water tank that faces toward the working coil and is spaced apart from the working coil by a gap to heat a liquid passing through an inner space of the hot water tank by an induction of the working coil, a bracket that is coupled to the hot water tank, the working coil being located between the hot water tank and the bracket, and a spacer that is located between the working coil and the hot water tank to thereby define the gap between the working coil and the hot water tank.

Abstract: The invention relates to a device for the concentration of solar radiation in an absorber, comprising an inflatable concentrator cushion, which comprises a cover film element comprising a light-permeable entry window for coupling in solar radiation and a reflector film, which sub-divides the concentrator cushion into at least two hollow spaces, for the concentration of solar radiation in an absorber, comprising a pivoting apparatus, by means of which the concentrator cushion can be pivoted, in particular about its longitudinal axis, and comprising a retaining apparatus secured (mounted) to the pivoting apparatus for retaining the concentrator cushion, which retaining apparatus comprising an upper longitudinal member extending in the longitudinal direction of the concentrator cushion, suspending the absorber, wherein the upper longitudinal member is arranged on a substantially air-tight closed upper passage opening of the concentrator cushion.

Abstract: A roofing, cladding, or siding apparatus comprises a roofing, cladding, or siding module and at least one clip. The module comprises an underlapping region and an exposed region. The underlapping region is adapted to be substantially covered by the exposed region of an adjacent overlapping module when installed on a building surface. A projection extends from the exposed region to provide a bearing surface facing the under surface of the exposed region. The clip or clips is attachable to the underlapping region to provide a tongue adapted to be received between the bearing surface and the under surface of the exposed region of an adjacent overlapping module when installed on a building surface.

Abstract: The present invention relates to a geothermal energy extraction subterranean system for extracting heat from a subterranean formation, comprising an injection well comprising a first well tubular metal structure arranged in a first borehole providing a first annulus therebetween and extending from surface into the subterranean formation and being configured to inject a working fluid out through a first injection opening into a production area defined in the subterranean formation and thereby generating a heated working fluid, and a first production well comprising a second well tubular metal structure arranged in a second borehole providing a second annulus therebetween and extending from surface into the subterranean formation into the production area and extracting the heated working fluid through a first production opening, wherein the first well tubular metal structure of the injection well comprises a first annular barrier and a second annular barrier configured to expand in the first annulus to abut a w

Abstract: A compressor module (1) comprises: a floor member (3); a gas cooler (24) mounted on the floor member (3); a compressor skid (10) disposed on a side of the gas cooler (24) opposite to where the floor member (3) is located, the compressor skid (10) being connected to the gas cooler (24); and a leg portion (15) connected to the compressor skid (10) and fixed to the floor member (3) that supports the compressor skid (10), the leg portion (15) providing a gap to dispose the gas cooler (24) between the floor member (3) and the compressor skid (10).

Abstract: A device for separating gas and liquid from a mixture of gas and liquid phases includes a fluid guide member comprising a fluid inlet and a fluid outlet connected by a conduit configured as an elongated spiral disposed about an axis. A liquid coalescing medium is disposed on an exterior surface of the fluid guide radially outward from the elongated spiral conduit with respect to the axis. The separator also includes a plurality of radial channels providing radial flow paths for fluid from the elongated spiral conduit to the coalescing medium.

Abstract: A linear compressor is provided that may include a casing, a compressor body accommodated in the casing and defining a compression space for a refrigerant, a suction pipe coupled to a first side of the casing to supply the refrigerant to the compression space, a discharge pipe coupled to a second side of the casing to discharge the refrigerant compressed in the compression space outside of the casing, a process pipe coupled to the second side of the casing spaced apart from the discharge pipe to inject a refrigerant for supplement into the casing, and a separator that separates a mixed fluid of a refrigerant and oil infected through the process pipe.

Abstract: A method and corresponding system for extracting an unsuitable and/or unknown and/or contaminated coolant gas from an air conditioning system. An existing coolant fluid recovery/charging machine is used in order to extract the heat required to cool said containment element of the coolant to be extracted or extracted.

Abstract: Stress to be imposed on a compressor in reverse cycle operation is reduced. A cycle controller causes an outdoor heat exchanger to function as a condenser and an indoor heat exchanger to function as an evaporator when a reverse cycle executing condition is met, so that a refrigerant circulates in reverse of a heating cycle. A rotation speed controller adjusts a rotation speed of a compressor in a reverse cycle, depending on an index correlated with an amount of frost on the outdoor heat exchanger at a start of the reverse cycle. The rotation speed controller decreases the rotation speed of the compressor in the reverse cycle as the index at the start of the reverse cycle indicates that the amount of the frost on the outdoor heat exchanger is smaller.

Abstract: An air conditioner which is able to prevent leaked refrigerant gas from disadvantageously stagnating at a part of a room space when leakage of refrigerant gas occurs in an indoor unit is provided. An air conditioner of the present invention includes an indoor unit having an upper outlet port and a lower outlet port and uses flammable refrigerant, the air conditioner including: a shutter provided at the lower outlet port and is configured to switch between a blowout capable state in which wind is blown out and a blowout incapable state in which no wind is blown out; a refrigerant gas sensor provided in the indoor unit, and a controlling unit configured to control the shutter. In a driving state in which the lower outlet port is in the blowout incapable state, when the refrigerant gas sensor detects the refrigerant gas, the controlling unit switches the lower outlet port from the blowout incapable state to the blowout capable state.

Abstract: A method for controlling a vapour compression system (1) is disclosed, the vapour compression system (1) comprising an ejector (5). The method comprises controlling a compressor unit (2) in order to adjust a pressure inside a receiver (6), on the basis of a detected pressure of refrigerant leaving an evaporator (8). The portion of refrigerant leaving the evaporator (8) which is supplied to a secondary inlet (15) of the ejector is maximised and the portion of refrigerant supplied directly to the compressor unit (2) is minimised, while ensuring that the pressure of refrigerant leaving the evaporator (8) does not decrease below an acceptable level.

Abstract: A tray assembly for a device for freezing a liquid, the assembly includes a frame defining an aperture. A thermally conductive tray is sized to be received within the aperture, the thermally conductive tray having a body and a lip circumferentially disposed about the body, the thermally conductive tray being seated within the aperture and defining a first surface and an opposite second surface, the first surface defining a recess and the second surface defining a plurality of receptacles. A gasket is included and sized to surround the body and to be disposed between the lip and the frame. An insulation chamber is coupled to the frame.

Abstract: An ice maker includes an ice tray with partitioned spaces for receiving ice-making water, an ejector for ice-separating an ice in the ice tray, a detector unit for detecting at least one of a position of the ejector and a temperature of the ice tray, a control box provided to be opposite to the ice tray and including a printed circuit board and a motor for driving the ejector therein, and a planar heater provided in the ice tray and including a heating element of a metal thin film and an insulating member to wrap the heating element such that the planar heater is pressured by virtue of an instrument provided in the ice tray to be bonded to or in closely contacted with the ice tray.

Abstract: A device for extraction of a frozen liquid is provided including a tray having a first surface defining at least one cavity and a second surface opposite the first surface. A rod including a protrusion is positioned proximate the at least one cavity. The protrusion passes through the at least one cavity to extract the frozen liquid in response to rotation of the rod.

Abstract: An ice-making apparatus for an appliance having a housing with an interior volume and an ice tray horizontally suspended in the interior volume. The ice tray has a cold plate with a top surface and a bottom surface and a containment wall surrounding an edge portion of the cold plate to retain water. A cooling source is thermally coupled to the bottom surface of the cold plate. An intake conduit extends into the interior volume over the ice tray and is configured to draw ambient air into the interior volume over the ice tray, and the ambient air is above freezing.

Abstract: An ice-making device for a refrigerator capable of detecting ice fullness in the ice storing unit and suspending ice production accordingly. The ice-making device includes a sensing unit configured to measure the amount of ice in the ice-storing unit based on detected positional information of the ice-storing unit. An accommodation unit is configured to accommodate the ice-making unit and the ice-storing unit. The sensing unit can sense relative movement of the ice storage unit with respect to the accommodation unit.

Abstract: A picnic cooler with a cooling mechanism based on the use of liquid nitrogen, that comprises four sides, bottom, cover, an internal compartment, an adapter. The internal compartment is integrated into one or more sides of the cooler and is made of a material that cools rapidly upon contact with the quick nitrogen. The internal compartment has one or more ventilation opening. The connector is designed to enable the attaching of an external canister of liquid nitrogen so as to enable introduction of liquid nitrogen from the canister into the internal compartment through the connector.

Abstract: Batches (9a and 9b) pass in succession into a (pre) refrigeration machine. An actuator (17) in the chamber (1) of the machine is controlled by a logic controller (16) to insert a temperature sensor (18) into a product selected in the batch. Above batch (9a) in front of entrance door (6) of chamber (1), a preparatory module (27) explores the top surface of the area at the top of the batch located under sensor (18). An image analyzer selects a product into which sensor (18) will be inserted, and a future insertion point in the selected product. This data is transmitted to a memory to which logic controller (16) will refer to control actuator (17) when the batch is in chamber (1). Preferably, the data refer to a repository linked to the batch, for example provided by a corner of the box (3) containing the selected product.

Abstract: At least one puck is used to manufacture a vacuum insulated panel with a shaped opening. A pair of barrier films are positioned about an insulated core having a shaped opening such as a through bore, cutout, or relief. The puck includes a protrusion having a shape similar to that of the opening of the insulated core. With the barrier films positioned about the insulated core, the pucks are inserted into the opening from opposite sides of the insulated core to thereby compress the barrier films between the shaped protrusions of the pucks to thereby prevent wrinkles and/or creases in the barrier films. The insulated core is then subjected to a vacuum to evacuate the insulated core of any gases and the barrier films are heat sealed to maintain the insulated core in the evacuated state. Excess barrier film is then removed to provide a wrinkle and/or crease free seal.

Abstract: An air distributor valve, in particular for distributing cold air to various chambers of a refrigeration device, includes a housing having at least a first and a second inlet, at least a first and a second outlet and a control body. The control body can be rotated in the housing about an axis, between a first open position, in which the control body connects the first inlet of the housing to the first outlet and blocks off the second outlet from the second inlet, and a second open position, in which the control body blocks off the first outlet from the first inlet and connects the second inlet to the second outlet.

Abstract: A heat exchange system includes a heat exchanger configured to exchange heat between a transport fluid and a heat transfer fluid, a fan configured and arranged such that the transport fluid is capable of being transported through the heat exchanger, a defrosting device configured to defrost a layer of frost, and a housing at which at least the heat exchanger and the fan are arranged, a heating lacquer layer arranged on at least one of the heat exchanger, the fan, the defrosting device, and the housing, the heating lacquer layer being electrically connected to a contact device for electrical contact with the heating lacquer layer, and when the layer of frost is on at least one of the heat exchanger, the fan, the defrosting device, and the housing, the layer of frost is able to be defrosted in an operating state of the heating lacquer layer.

Abstract: Disclosed is a refrigerator. The refrigerator includes a cabinet having a storage compartment, a first door pivotably installed to the cabinet, the first door being configured to open or close one side of the storage compartment, a second door pivotably installed to the cabinet, the second door being configured to open or close a remaining side of the storage compartment, the second door having a pillar configured to be rotated so as to come into contact with the first door, a first link device provided outside of the storage compartment, the first link device being operated in contact with the first door and the second door at a top of the cabinet, and a second link device configured to be operated by the first link device, the second link device serving to rotate the pillar.

Abstract: A domestic refrigeration appliance includes a heat-insulated inner container delimiting a coolable interior for foodstuffs, a refrigeration device cooling the interior, a door leaf articulated by hinges for opening and closing the interior and an opening aid. At least one hinge is self-closing for automatically closing the door leaf up to a first opening angle. The opening aid includes an actuator and a tappet moving back and forth by the actuator between first and second positions. The opening aid enables the door leaf to be closed if the tappet is in the first position, to move the tappet from the first to the second position to push open the closed door leaf using the tappet up to a second opening angle smaller than the first opening angle, and to automatically move the tappet into the first position immediately or with a time delay after reaching the second position.

Abstract: A retainer member is provided for retaining a food receptacle relative to an inner liner of an appliance cabinet or door. The retainer includes a base that is movably coupleable to the inner liner and first and second arms that extend from the base. The first and second arms are curved about an axis and define a passageway extending through the first and second arms along the axis. A free end of the first arm is spaced from a free end of the second arm to define an opening to provide radial access to the passageway through the opening.

Abstract: The present invention comprises a vacuum insulation body comprising a vacuum-tight covering that surrounds an evacuated region, wherein a core material is arranged in the evacuated region, wherein the covering has an outer region and an inner region at least partially surrounded by the outer region, wherein the inner region and the outer region are formed by a common film bag and wherein the inner region is formed by inverting the film bag.

Abstract: The present invention relates to a vacuum insulation body comprising a vacuum-tight casing which surrounds an evacuated region, wherein a core material is arranged in the evacuated region, wherein the casing includes an opening for filling the casing with the core material, which is covered by a vacuum-tight cover film, wherein the casing is folded inwards in the edge region protruding towards the opening, so that the opening is reduced in size, and subsequently again is folded outwards, wherein the region folded outwards and a region of the cover film are vacuum-tightly connected with each other all around.

Abstract: The present invention relates to a shelf assembly for use in a refrigeration appliance comprising a compartment for refrigerating food. The shelf assembly comprises a releasable shelf for supporting the food. The shelf assembly of the present invention comprises at least one retainer which is detachably mountable to either one of the side walls of the compartment, at least one counterpart retainer which is adjustably mountable at different heights onto either one of the lateral sides of the shelf. The counterpart retainer slidably engages with the corresponding retainer so as to reciprocate through a predetermined distance in the direction which is perpendicular to the side walls of the compartment.

Abstract: A refrigerating appliance includes an interior volume divided by a medial wall into refrigerating and freezing compartments. A horizontal false mullion extends through one of the compartments, parallel with the medial wall to define a pantry compartment in thermal communication with at least one of the refrigerating and freezing compartments. A center vertical mullion is removably engaged with the medial wall and divides the pantry compartment into first and second pantry sub compartments. First and second outer drawer glides are positioned on the cabinet structure within the pantry compartment and opposite first and second inner drawer glides of the center vertical mullion. The first inner and first outer drawer glides partially define the first pantry sub compartment. The second inner and second outer drawer glides partially define the second pantry sub compartment. First and second pantry drawers are slidably engaged with first and second pantry sub compartments, respectively.

Abstract: A refrigerator equipped with a door that becomes transparent as necessary to make the interior thereof visible is disclosed. The refrigerator includes a cabinet having a storage compartment defined therein, a lighting device for illuminating the interior of the storage compartment, a door, which is hingedly coupled to the cabinet to open and close the storage compartment, and has an opening and a panel assembly including a front panel disposed on the front surface thereof, a sensor for detecting sound waves, which are generated by a knock input applied to the door and are transmitted through the front panel, and a controller for controlling the lighting device to allow light to be transmitted through the panel assembly, thus making the storage compartment visible from outside the door through the opening when a predetermined knock input is detected.

Abstract: Door alarm systems, methods, and apparatus are disclosed. A door alarm system may monitor a door of a refrigeration device and detect a failed attempt at closing the door. In response to detecting the failed attempt, the door alarm system may generate a notification of the detected, failed attempt so that remedial action may be taken.

Abstract: An apparatus, method, computer program product, and computer system for monitoring at least one of an environment of at least one freezer unit of one or more freezer units inside a mobile container and a macro environment of the mobile container maintained by a refrigeration unit. Data of at least one of the macro environment of the mobile container and the environment of the at least one freezer unit may be logged. The data may be provided to an external display. An alert may be provided in real-time to the external display based upon, at least in part, at least one of the macro environment of the mobile container and the environment of the at least one freezer unit. A first power supply providing power to the at least one freezer unit may be switched to a second power supply providing power to the at least one freezer unit based upon, at least in part, at least one of the macro environment of the mobile container and the environment of the at least one freezer unit.

Abstract: The invention relates to a metal element (12) for anchoring an anti-erosion coating that is intended to be fastened alone in an isolated manner to a metal wall or assembled with other identical anchoring elements. The anchoring element (12) has an edge (12a) for fastening to said metal wall and an anchoring body firmly attached to the fastening edge (12a) and having an upper edge (12b) that is away from the fastening edge and intended to be covered by a composite material of concrete type. A section of this upper edge (12b), which is not intended to be juxtaposed and assembled with an upper edge of an identical anchoring element, is provided with a delimiting tab (16) in order to delimit a height of composite material that must cover the upper edge (12b) of said anchoring element, said delimiting tab (16) having a delimiting edge (18) that is a predetermined distance away from a plane defined by the upper edge (12b) of the anchoring element.

Abstract: A pallet car for conveying material to be processed is disclosed. The pallet car includes first and second sidewalls formed from sidewall members that each include a metal frame and a heat-resistant liner, such as formed from refractory. The refractory formed on the metal frame of the sidewall members provides insulation for the metal frame without the need for a hearth layer of pre-processed material in the material bed of the pallet car. The sidewall member including the refractory layer increases the effective volume of the pallet car, which increases the overall efficiency of the furnace and material processing procedure.

Abstract: A support rack can include a first component comprising a ceramic material and a second component comprising a ceramic material. The first component can intersect at least one wall of the second component and the first and second components can be coupled via a ceramic weld. A method of making a support rack can include providing a first component comprising a sintered ceramic material, providing a second component comprising an un-sintered or partially-sintered ceramic material, arranging the first and second component so that the first component intersects at least one wall of the second component, sinter bonding the first and second components together to form a ceramic weld at the intersection. In an embodiment, the support rack can be a piece of kiln furniture.

Abstract: A heat exchanger includes a thermal reservoir, a plurality of grooves formed in the thermal reservoir, and a plurality of fluid tubes. Each of the fluid tubes is disposed in a respective one of the grooves such that it is in thermal contact with the thermal reservoir. In a particular embodiment, the grooves form helices around the outer surface of the thermal reservoir. Additionally, each of the grooves can be formed parallel to the other groove(s) such that each of the process fluid tubes will be disposed in parallel to the other process fluid tube(s). The heat exchanger can also include a heating apparatus and/or a cooling apparatus.

Abstract: An apparatus and corresponding approaches for a combined energy dissipation include an energy dissipater forming a hollow chamber therein containing a partial pressure working fluid and a first adjustable thermal connector configured to be placed in an opening of the energy dissipater between an energy generating component to transfer energy there between. The first adjustable thermal connector includes a heat spreader at least partially disposed within the opening of the dissipater, an elastic member operably coupled to the energy dissipater, a flexible membrane coupled to the energy dissipater and the heat spreader, and a phase change material configured to at least partially fill an area defined by the opening, heat spreader, elastic member, and flexible membrane. Upon changing the phase change material to a first material phase, the elastic member applies a biasing force to the energy generating component to align the heat spreader with the energy generating component.

Abstract: The present disclosure provides pumped thermal energy storage systems that can be used to store electrical energy. A pumped thermal energy storage system of the present disclosure can store energy by operating as a heat pump or refrigerator, whereby net work input can be used to transfer heat from the cold side to the hot side. A working fluid of the system is capable of efficient heat exchange with heat storage fluids on a hot side of the system and on a cold side of the system. The system can extract energy by operating as a heat engine transferring heat from the hot side to the cold side, which can result in net work output. Systems of the present disclosure can employ solar heating for improved storage efficiency.

Abstract: The present disclosure relates to thermochemical heat storage units. The teachings thereof may be embodied in systems and methods for operating, including charging and discharging, a thermochemical heat storage unit. For example, a method for operating a thermochemical heat storage unit may include: producing a first steam and feeding it to a heat exchanger; partially condensing the steam with release of its thermal energy, in the heat exchanger; subsequently pressurizing water condensed from the steam; feeding the pressurized water to the heat exchanger; evaporating the water into a second steam; and storing at least a portion of the second steam in a steam storage unit.

Abstract: A fin for a finned pack for heat exchangers, includes a plate in which a plurality of through holes is made for the positioning of tubes to convey a first heat exchange fluid, the plate having an edge as well as two main faces each to be contacted by a second heat exchange fluid in a crossing direction from an inlet portion to an outlet portion of the edge of the plate.

Abstract: A U-bend pipe type heat exchanger includes: a heat exchanger main body surrounded by a front side plate, a back side plate, a left side plate, and a right side plate, and having open upper and lower portions through which a heat source passes; a plurality of U-bend pipes inserted between the left side plate and the right side plate, each of the plurality of U-bend pipes including two heat exchange pipes arranged in parallel with each other and a U-shaped pipe connecting one end portions of the two heat exchange pipes; and a plurality of water jackets attached to at least one of outward surfaces of the left side plate and the right side plate, and connecting open end portions of two adjacent heat exchange pipes such that a low-temperature water circulates along the plurality of U-bend pipes.

Abstract: A heat exchanger devices for operations in heavy liquid metal coolant mediums that ensures reliable fixation and spacing of heat exchanger tubes. A first option includes one supporting spacer grid 1 consisting of a cylindrical shell 2 and two or more tiers of plates 3 and 4 spaced apart at the preset gap, while the width of each plate lies within the plane which is parallel to the shell axis; ends of all plates are fixed to the shell such that plates of any tier are parallel to each other and located at the preset gap; plates of different tiers are criss-crossed at an angle of 60 degrees along the shell axles and fastened together at the crossing points. A second option includes three dividers which run through the cylinder axis; their ends are connected to the shell and are spaced at an angle of 60 degrees.

Abstract: The invention relates to a heat exchanger (10) for heat-exchange between a first fluid and a second fluid, comprising a membrane separating the two fluids and a heat-conductive element (17) in thermal contact with the membrane and with the first fluid, characterised in that said heat-conductive element (17) moves between an active position and an inactive position, such that the capacity of heat exchange with the first fluid is weaker in the inactive position than in the active position. The exchanger is applied, in particular, for the cooling of fluid in the secondary stream of a turbofan.

Abstract: A condensing heat exchanger to exchange heat from a hot flow to a cold flow includes a hot flow side to receive the hot flow, the hot flow side including a hot flow inlet disposed on a hot flow inlet side and a hot flow outlet disposed on a hot flow outlet side, wherein a hot flow side cross section decreases from the hot flow inlet side to the hot flow outlet side, a cold flow side to receive the cold flow, and an interface disposed between the hot flow side and the cold flow side to allow thermal communication therebetween.

Abstract: An aluminum alloy clad material includes a core material, one side being clad with cladding material 1, the other side being clad with cladding material 2, the core material including an aluminum alloy that includes 0.5 to 1.8% of Mn, and limited to 0.05% or less of Cu, with the balance being Al and unavoidable impurities, the cladding material 1 including an aluminum alloy that includes 3 to 10% of Si, and 1 to 10% of Zn, with the balance being Al and unavoidable impurities, and the cladding material 2 including an aluminum alloy that includes 3 to 13% of Si, and limited to 0.05% or less of Cu, with the balance being Al and unavoidable impurities, wherein the Si content X (%) in the cladding material 1 and the Si content Y (%) in the cladding material 2 satisfy the value (Y?X) is ?1.5 to 9%.

Abstract: A heat exchanger cleaning device is provided. The cleaning device includes a drive motor configured to rotate a gearbox, a slip clutch and a support beam about a first axis. The support beam carries a thread rod, a second motor, and one or more carriage assemblies. The carriage assemblies move linearly as the second motor rotates the threaded rod. The carriage assemblies include a support tube for receiving an ultra-high pressure tube therethrough. The carriage assemblies adjust relative to the heat exchanger such that the UHP tube may be inserted through the support tube into a hole of the heat exchanger. Therein the UHP tube may be advanced to clean sediment from the heat exchanger tube.

Abstract: A flexible lance drive device has at least one drive motor in a first portion of a housing and a drive axle projecting across a second portion of the housing carrying a cylindrical spline drive roller. A plurality of cylindrical guide rollers on fixed axles span across the second portion of the housing aligned parallel to the spline drive roller. An endless belt wrapped around the at least one spline drive roller and guide rollers has a generally smooth outer surface and a transverse splined inner surface having splines shaped complementary to splines on the spline drive roller. A bias member supports a plurality of follower rollers each aligned vertically above one of the at least one spline drive roller and guide rollers operable to press each follower roller toward one of rollers to frictionally grip a flexible lance hose when sandwiched between the follower rollers and the endless belt.