Abstract: A solute trapping column including two trapping agent layers has a first branched pathway extending from an upper part of a main body part thereof, and a second branched pathway extending from between two trapping agent layers, and with its upper part a purification column is connected. By injection of solution of dioxins and supply of solvent into the purification column, dioxins are trapped by the trapping agent layers. An extraction solvent supplied from the lower end side of the solute trapping column while keeping both the purification column and the first branched pathway blocked extracts the dioxins trapped by the second trapping agent layer and flows into the second branched pathway. An extraction solvent supplied in a similar manner while keeping both the purification column and the second branched pathway blocked extracts the dioxins trapped by the first trapping agent layer and flows into the first branched pathway.

Abstract: A fractionating tool capable of fractionating dioxins contained in a solution of dioxins includes a tubular body opening at both ends, and a purification layer and an adsorption layer packed therein. The adsorption layer includes a first adsorption layer including an activated carbon-containing silica gel layer and a graphite-containing silica gel layer, and a second adsorption layer including an alumina layer. When a solution of dioxins is injected into the purification layer and then a solvent capable of dissolving dioxins is supplied thereto, the solvent dissolves dioxins and passes through the purification layer and the adsorption layer. In this process, non-ortho PCBs, PCDDs and PCDFs among dioxins are adsorbed to the first adsorption layer, and mono-ortho PCBs among dioxins are adsorbed to the second adsorption layer. As a result, dioxins are fractionated.

Abstract: A boiler system includes a boiler group provided with a plurality of boilers and a controller for controlling a combustion state of the boiler group. The boiler group has a varied steam flow set to indicate reserve power corresponding to expected increase of a steam flow due to a sudden variation of a required load, and an increase minimum load factor set to indicate a load factor for output of a steam flow corresponding to the required load only from the combusting boilers with no increase of the number of combusted boilers. The controller increases the number of the combusted boilers when a total reserve steam flow of the combusting boilers is not more than the varied steam flow and the load factor of each of the combusting boilers is not lower than the increase minimum load factor.

Abstract: A column 1 for removing an interfering substance to an analysis of polychlorinated biphenyls contained in an oily liquid such as an electric insulating oil from the oily liquid, includes a first column 10 packed with a multilayer silica gel 13 in which an upper layer 14 of a sulfuric acid silica gel is stacked on a lower layer 15 of a nitrate silica gel and a second column 20 connected to the lower layer 15 side of the column 10 and packed with an alumina layer 23. The nitrate silica gel of the lower layer 15 is produced by treating an activated silica gel with a mixed aqueous solution of copper nitrate and silver nitrate, wherein the ratio by mole of the copper element to the silver element (the copper element:the silver element) is preferably from 1:0.5 to 2.0.

Abstract: A waste heat recovery system includes: a heater which evaporates a working medium by exchanging heat between supercharged air supplied to an engine and the working medium; an expander which expands the working medium which has flowed out from the heater; a power recovery device connected to the expander; a condenser which condenses the working medium which has flowed out from the expander; a cooling medium supply pipe for supplying a cooling medium to an air cooler which cools the supercharged air which has flowed out from the heater; a cooling medium pump which is provided in the cooling medium supply pipe and which sends the cooling medium to the air cooler; and a branch pipe which bifurcates a part of the cooling medium flowing in the cooling medium supply pipe, to the condenser, in such a manner that the working medium is cooled by the cooling medium.

Abstract: A waste heat recovery device including: a heater which evaporates an working medium by exchanging heat between supercharging air supplied to an engine and the working medium; a heat exchanger which heats the working medium by exchanging heat between the working medium which has flowed out from the heater and a heating medium; and an expander into which the working medium which has flowed out from the heat exchanger flows; a motive power recovery device; a condenser which condenses the working medium; and a pump which sends the working medium to a heater.

Abstract: A boiler steam amount measuring method for continuously measuring a temporal change in an amount of steam from a steam boiler, includes: first measuring a differential pressure between a pressure at a first detection position that is a predetermined position in a can body of the steam boiler or a steam outflow path, and a pressure at a second detection position in the steam outflow path separated from the first detection position toward a downstream side; first calculating a pressure loss coefficient based on the differential pressure measured by flowing a predetermined flow rate of steam or fluid instead of steam into the steam outflow path, and the predetermined flow rate; and second calculating continuously the amount of steam based on the differential pressure measured in the first measuring and the pressure loss coefficient calculated in the first calculating, and outputting the calculated amount of steam as a measurement value.

Abstract: The invention improves system efficiency with no waste of heat held by a stopped boiler. A boiler system includes a boiler group having a plurality of boilers and a controller for controlling a combustion state of the boiler group. The controller includes a heat release determiner for determining whether or not the plurality of boilers includes a boiler releasing heat, a boiler increase determiner for determining, when the heat releasing boiler starts combustion and the heat releasing boiler and the other combusting boilers are combusted at equal load factors, whether or not the load factor is higher than a predetermined load factor, and an output controller for combusting the heat releasing boiler when the load factor is determined to be higher than the predetermined load factor.

Abstract: A boiler system includes a boiler group provided with a plurality of boilers and a controller for controlling a combustion state of the boiler group. The boiler group has a varied steam flow set to indicate reserve power corresponding to expected increase of a steam flow due to a sudden variation of a required load, and an increase minimum load factor set to indicate a load factor for output of a steam flow corresponding to the required load only from the combusting boilers with no increase of the number of combusted boilers. The controller increases the number of the combusted boilers when a total reserve steam flow of the combusting boilers is not more than the varied steam flow and the load factor of each of the combusting boilers is not lower than the increase minimum load factor.

Abstract: A split valve includes: an upper valve body having a spherical surface abutting on a seat surface of a discharge port to block the discharge port and a hollow on a lower surface; a lower valve body that blocks a receiving port by causing a spherical surface to abut on a seat surface of a receiving port and has a protrusion fitted to the hollow of the upper valve body on its upper surface, a shaft that rotates the lower valve body, an air supply/discharge mechanism that supplies/discharges an air pressure into/from a chamber defined by the protrusion and the hollow.

Abstract: The separatorless boiler includes a downcomer pipe (84) connecting a lower portion of the upper header (24) and the lower header (22) and a control means (70) for carrying out a first control for controlling a water supply means (60) so that a water level in the can body lowers when a detected water level by an external water level detecting means (50) exceeds a first set water level and a second control for controlling the water supply means (60) so that the water level in the can body rises when the detected water level becomes lower than or equal to a second set water level lower than the first set water level.

Abstract: Hydraulic cylinders of a conveying apparatus includes piston rods that extend in parallel, pistons, and cylinder tubes that have an internal pressure chamber partitioned into first and second pressure chambers. A pair of the hydraulic cylinders are arranged in parallel with an interval in a width direction of a conveyance path. The cylinder tube slidingly moves to the first pressure chamber side by supplying a hydraulic pressure to the first pressure chamber and discharging a hydraulic pressure from the second pressure chamber, and the cylinder tubes slidingly move to the second pressure chamber side by supplying a hydraulic pressure to the second pressure chamber and discharging a hydraulic pressure from the first pressure chamber. The workpiece is supported by a pair of the cylinder tubes.

Abstract: A boiler is provided with: a boiler body in which the water level inside water pipes when combustion by a burner is stopped is lower than the upper ends of the water pipes; water supply means; control means which controls the water supply means depending on the water level in the boiler body; header water level detection means which detects a water level existing inside an upper header; and a downcast pipe. The control means performs first control for controlling the water supply means so as to lower a boiler body water level when the water level detected by the header water level detection means reaches a header set water level and second control for controlling the water supply means so as to raise the boiler body water level when the amount of drop in the boiler body water level reaches a predetermined amount after the first control.

Abstract: The boiler is provided with: a boiler body in which the water level inside water pipes when combustion is stopped is lower than the upper ends of the water pipes; external water level detection means which communicates with upper and lower headers and detects a boiler body external water level; control means which controls the water supply means so as to lower the water level inside the boiler body when the water level detected by the external water level detection means reaches a first set water level; and header water level detection means which detects a water level existing inside the upper header by boiler water being pushed up by air bubbles. The control means controls the water supply means so as to lower the water level inside the boiler body when the water level detected by the header water level detection means reaches a second set water level.

Abstract: There is provided a drain recovery system with which power for driving a feedwater pump can be reduced and the feedwater pump can be driven at low costs. The drain recovery system includes: a buffer tank; an assist tank disposed below the buffer tank; a first drain supply line that connects a load device and the buffer tank; a second drain supply line that connects the buffer tank and the assist tank; a drain supply valve; a communication line that establishes communication between the assist tank and the buffer tank; a communication valve; a steam supply line that supplies steam from a boiler to the assist tank; a steam supply valve; a feedwater line that supplies drain from the assist tank to the boiler; and a feedwater pump.

Abstract: A controller includes a program for controlling a group of boilers having boilers with a plurality of staged combustion positions. The program is arranged to control the boilers and the combustion positions such that a total load following evaporation amount obtained by summing up load following evaporation amounts of the respective boilers comprising the group of boilers becomes equal to or more than a setup load following evaporation amount which is an evaporation amount that the group of boilers is to follow.

Abstract: Forming a strong and dense protective film with excellent adhesion to a noble metal base and includes a level of durability that would allow it to be frequently worn without paying particular attention to handling in daily life, and easily forming a protective film on the surface of a noble metal base which has excellent corrosion resistance, and where these effects are present over a long period of time. The noble metal protective film related to the present invention is a silica glass film having a film thickness of 0.2 ?m to 1.0 ?m formed by coating a composition for forming a glass film with polysilazane as the main component on a surface of a noble metal base, and holding the noble metal under a temperature less than the melting point of a noble metal base coated with the composition for forming a glass film in an atmosphere containing water vapor.

Abstract: A regeneration process in the operating method of the invention includes a first regeneration process, and a second regeneration process after the end of the first regeneration process. In the first regeneration process, a regenerant is distributed at a top of an ion exchange resin bed and simultaneously the regenerant is collected at a bottom of the resin bed, thereby generating a downward flow of the regenerant to regenerate the whole of the resin bed. In the second regeneration process, the regenerant is distributed at a bottom of the ion exchange resin bed and simultaneously the regenerant is collected at a middle of the resin bed, thereby generating an upward flow of the regenerant to regenerate a part of the resin bed.

Abstract: According to one embodiment, a water treatment system includes: a membrane separation device and a water softening device including a valve unit switching between a softening process in which soft water is obtained by passing raw water through a cation exchange resin bed downward and a regeneration process in which a whole of the cation exchange resin bed is regenerated by generating an opposite flow of a regenerant by supplying the regenerant from both sides of a top portion and a bottom portion of the cation exchange resin bed and collecting a liquid at an intermediate portion of the cation exchange resin bed, and a regenerant supply supplying the regenerant in a volume which gives a regeneration level of 1 to 6 eq/L-R, to a hardness leakage prevention region set in a predetermined depth on the bottom portion of the cation exchange resin bed, in the regeneration process.

Abstract: A steam engine and an electric motor are arranged, which respectively drives an air compressor. The compressed air from the air compressor is supplied to a compressed air using device through a common air tank. The steam is supplied to the steam engine through a steam supply path, and the steam used in the steam engine is supplied to a steam using device through a steam exhaust path. The steam pressure is monitored by a pressure sensor arranged in a steam header ahead of the steam exhaust path. The air pressure is monitored by a pressure sensor arranged in an air tank. A steam supply valve is controlled based on the steam pressure and the air pressure, and the electric motor is controlled based on the air pressure. The steam engine is preferentially driven over the electric motor by shifting the target value of the air pressure.