WO2003078904A1 - Structure d'echange thermique pour vapeur a pression atmospherique et procede d'echange thermique - Google Patents
Structure d'echange thermique pour vapeur a pression atmospherique et procede d'echange thermique Download PDFInfo
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- WO2003078904A1 WO2003078904A1 PCT/JP2003/003126 JP0303126W WO03078904A1 WO 2003078904 A1 WO2003078904 A1 WO 2003078904A1 JP 0303126 W JP0303126 W JP 0303126W WO 03078904 A1 WO03078904 A1 WO 03078904A1
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- Prior art keywords
- normal
- pressure steam
- heat
- heat exchange
- section
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
- F28B9/08—Auxiliary systems, arrangements, or devices for collecting and removing condensate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
- F28B1/06—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using air or other gas as the cooling medium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B11/00—Controlling arrangements with features specially adapted for condensers
Definitions
- the present invention provides a heat exchange for normal-pressure steam for exchanging the energy of normal-pressure steam whose pressure is approximately atmospheric pressure into a form of heat that can be used daily, such as hot water, hot air, and radiant heat.
- a heat exchange structure and a heat exchange structure capable of easily obtaining heat at an arbitrary temperature from atmospheric pressure steam with a simple structure.
- the present invention relates to a heat exchange method using a structure.
- Water vapor is used in many fields and in various forms, and is one of the useful energy sources for industrial and daily life.
- high-temperature and high-pressure superheated steam pressurized above atmospheric pressure has a large amount of energy, and in particular, superheated steam with a pressure of several 10 atmospheres is used for power generation using a steam turbine. It is well known that it is used as a source.
- High-temperature, high-pressure steam is useful when large amounts of energy are required, such as for power generation.
- steam at a low pressure of about 1 atm is used as an energy source for radiator-type heating.
- normal-pressure steam refers to steam having a pressure of about 0 to several hundred Pa lower than the atmospheric pressure, that is, steam generated mainly by an open steam generator. Means. Normal pressure steam can be generated by boiling water in an open system at about atmospheric pressure. That is, if necessary, it can be easily generated with relatively simple equipment.
- waste heat can be recovered as normal-pressure steam if necessary.
- biomass resources there is a method of using biomass resources as fuel and using them. In this case, the technology to convert biomass resources into fuel is being established, but how to effectively use the heat generated by burning is a major issue. If there is an effective use of normal-pressure steam, such biomass fuel can be burned to obtain normal-pressure steam as a heat source. Of course, even if such a fuel is not used, a fuel such as a petroleum oil may be used if necessary.
- steam generated after power generation using superheated steam and steam discharged from the cogeneration system are also heat sources that can be used as normal-pressure steam.
- Japanese Patent Application Laid-Open No. 2000-199156 proposes a device for radiating and heating constituted by means for generating steam at normal pressure and a radiator.
- the water vapor after heat release is returned to the normal-pressure water vapor generation means and reused.
- the purpose is not to actively condense the normal-pressure steam, it is difficult to use the latent heat of the normal-pressure steam for + minutes.
- the heat radiation temperature must be adjusted mainly by the flow rate of water vapor, there is a disadvantage that accurate temperature adjustment is difficult.
- steam at normal pressure has a condensation temperature of approximately 100 ° C, it is converted into a heat form such as hot water or hot air, which can be selected according to the application such as heating or drying, or hot water or hot air that can be selected according to the application. It must be available. However, the reality is that there is no appropriate means to respond.
- the present invention has been made to solve such a problem, and has a simple structure, and a heat exchange structure for normal-pressure steam capable of obtaining a heat exchange medium whose temperature is adjusted to an arbitrary temperature. It is intended to provide a heat exchange method using the body and its heat exchange structure.
- the heat-exchange structure for normal-pressure steam according to the present invention (1) is provided for converting the energy of normal-pressure steam whose pressure in the inlet does not exceed atmospheric pressure into heat that can be used via a heat exchange medium.
- a heat-exchange structure for normal-pressure steam comprising: a normal-pressure steam introduction section, a normal-pressure steam flow section, a heat-exchange-capability adjusting means for adjusting a heat exchange amount of the normal-pressure steam in the normal-pressure steam flow section, And a discharge means including a drain discharge part for discharging a drain generated by condensation of the normal-pressure steam.
- the heat exchange structure for normal-pressure steam described above (1) Because it uses the latent heat and some sensible heat of the structure, the pressure resistance of the structure against pressure that greatly exceeds the atmospheric pressure and the temperature exceeding 100 ° C by several 10 ° C Does not require heat resistance to various temperatures. Therefore, according to the heat exchange structure for normal-pressure steam (1), the structure can be simplified and provided at a low cost.
- any form such as hot air, hot water, radiant heat, and direct heating of an object can be used, so that the degree of freedom of selection is high.
- the temperature of the heat exchange medium such as hot air and hot water can be adjusted to an arbitrary temperature and with high accuracy, the heat exchange medium after the heat exchange is easy to use and has a wide range of applications. .
- the above-mentioned heat exchange structure for atmospheric pressure steam (1) has many advantages as described above, so the use of atmospheric pressure steam is expanded, and the heat of combustion of municipal solid waste and the generation of biomass fuel This has a great industrial effect that leads to the effective use of combustion heat.
- the heat-exchange structure for normal-pressure steam (2) is the heat-exchange structure for normal-pressure water vapor (1), wherein the normal-pressure steam flow portion has a radiator.
- the heat-exchange structure for normal-pressure steam (1) is characterized in that: Since the normal-pressure steam flow section in ()) is composed of a normal-pressure steam flow section having a heat radiating section, heat is efficiently exchanged with water and air in the area close to the heat radiating section. be able to. Therefore, it is particularly suitable for obtaining hot water and hot air.
- the heat exchange structure for atmospheric pressure steam (3) is the heat exchange structure for atmospheric pressure water vapor (2), wherein the heat exchange medium is air, and It is characterized by having a blower for forcibly discharging the heat exchanged air from the radiator.
- the heat-exchange structure for normal-pressure steam (4) is particularly suitable as a device for heating or drying.
- the heat exchange medium is water
- the heat exchange medium flowing part is a container-shaped water storage part whose outer periphery is surrounded by a heat insulating member, and a water supply part provided on a wall of the container-shaped water storage part And a hot water outlet.
- the heat exchange structure for normal-pressure steam (4) it is configured such that hot water can be obtained based on the heat-exchange structure for normal-pressure steam (2). It has the feature that hot water of 90 ° C or more can be obtained. Therefore, it is particularly suitable as a hot water storage type hot water supply apparatus.
- the heat-exchange structure for normal-pressure steam (5) according to the present invention is the heat-exchange structure for normal-pressure water vapor (1) according to the present invention, wherein the normal-pressure steam flow portion has an outer peripheral portion with a heat insulating member.
- the container-shaped flow-through portion is surrounded by a circle.
- the wall of the container-shaped flow-through portion is provided with the normal-pressure steam introduction portion and the discharge means, and the heat exchange medium is water.
- Medium flow part z force Water supply part to which water is supplied from the outside of the container-like flow part, water distribution means arranged in the container-like flow part, and drainage part It is characterized by:
- the normal-pressure-steam passage in the heat-exchange structure for normal-pressure steam (.1) has a container-like normal-pressure steam having a certain internal volume. It is composed of a flow section. Then, hot water is obtained by spraying water into the flow of the normal-pressure steam and bringing the normal-pressure steam and the water into direct contact with each other. Drains of normal-pressure steam condensed by heat radiation can also be recovered as hot water, so the heat recovery efficiency of normal-pressure steam is excellent.
- the normal pressure steam heat exchange structure (5) has a feature that hot water having a desired amount of water adjusted to a desired temperature can be obtained.
- the area of the heat exchange section increases with an increase in scale, so maintenance becomes difficult and initial investment tends to be expensive.
- the direct contact condensation method Is very easy to maintain, and because of the scale benefits, the increase in investment due to the increase in size is small. Therefore, it is particularly suitable for controlling the temperature of circulating water in district heating or a large-scale hot water pool.
- the heat-exchange structure for normal-pressure steam according to the present invention (6) is the heat-exchange structure for normal-pressure water vapor (1) according to the present invention, wherein the normal-pressure steam flow portion has an outer peripheral portion with a heat insulating member
- the container-shaped flow-through portion is surrounded by a circle.
- the wall of the container-shaped flow-through portion is provided with the normal-pressure steam introduction portion and the discharge means, and the heat exchange medium is water.
- the medium flow section is configured to include a water supply section to which water is supplied from outside the container-shaped flow section, a tubular heat exchange section disposed in the container-shaped flow section, and a drain section. This is the feature.
- the normal-pressure steam flow passage has a container-like shape having a certain internal volume. It is composed of a normal-pressure steam flow section.
- the heat exchange medium is configured such that water as a heat exchange medium flows through a tubular heat exchange section disposed in the flow of the atmospheric pressure steam. Hot water is obtained by contact through a wall. Therefore, water, which is a heat exchange medium, and a drain formed by condensation of normal-pressure steam do not mix.
- the heat exchange structure for normal-pressure steam (5) there is a feature that it is possible to obtain a desired amount of hot water adjusted to a desired temperature. Therefore, it is suitable when clean hot water is required.
- the heat exchange structure for normal pressure steam according to the present invention (7) is the heat exchange structure for normal pressure water vapor (1), wherein the outer peripheral portion is provided on a heat insulating member and at least one surface. And a container-like flow-through portion surrounded by a heat-exchange medium member and an infrared transmitting member outside the heat-exchange medium member.
- the heat-exchange structure for normal-pressure steam (7) radiant heat is radiated from the heat-dissipating surface of the heat-exchange medium to the front of the heat-dissipating surface. Demonstrate the heating effect. Therefore, it can be used as a component of buildings such as walls and ceilings, and used as a heating structure. it can.
- the heat exchange structure for normal-pressure steam according to the present invention (8) can be used as a single device for heating and heating.
- the normal-pressure steam flow section is constituted by a container-like flow section whose outer peripheral portion is surrounded by a heat insulating member, and the normal-pressure steam introduction section is provided on a wall of the container-like flow section.
- the discharge means are provided, wherein the heat exchange medium is a heated object directly heated by the heat of the normal-pressure steam, and the heated object is placed in the normal-pressure steam flow portion. It is characterized by having a water-permeable mounting table that can be used.
- the normal-pressure steam flow portion is constituted by a container-like normal-pressure steam flow portion having a certain internal volume.
- a mounting table for placing the object to be heated is provided. Therefore, there is an advantage that heat can be directly exchanged between the material to be heated and the normal-pressure steam, and various objects can be heated, and particularly suitable as a steamer. It is.
- the heat exchange structure for normal pressure steam according to the present invention (9) is the heat exchange structure for normal pressure water vapor according to any one of the above (1) to (8), wherein the discharge means is a suction pump. It is characterized by having
- the suction pump starts the normal pressure steam flow section beforehand. It is used to forcibly discharge the drain when the internal air is forcibly sucked and discharged, or when the drain inside the atmospheric pressure steam flow section has become too large. Therefore, by providing a suction pump as a part of the discharge means, it is possible to stably operate the heat-exchange structures for normal-pressure steam (1) to (8). Excellent effects can be obtained.
- the heat exchange structure for normal pressure steam according to the present invention is the heat exchange structure for normal pressure water vapor according to any one of (1) to (9) above.
- the outlet has a U-shaped pipe having a drain opening with one end open to the drain pipe of the discharge means and a drain port open at the other end, and is provided below the drain port and the drain port.
- a floating body having a size capable of closing the opening and having a specific gravity of less than 1 is provided between the opening and the opening.
- the drain drain section continuously discharges the drain from the drain port, and the heat exchange structure for the atmospheric pressure steam It has the function of preventing the drain from staying for a certain amount or more.
- the method for heat exchange of normal-pressure steam (1) converts the energy of normal-pressure steam whose pressure in the introduction section does not exceed atmospheric pressure into heat that can be used via a heat exchange medium.
- a heat exchange method for normal-pressure steam comprising: a normal-pressure steam flow portion, a heat-exchange medium flow portion directly or indirectly in contact with the normal-pressure steam, or directly with the normal-pressure steam.
- a heat exchange medium member that comes into contact with the air a heat exchange capacity adjusting means that adjusts a heat exchange amount of the normal pressure steam in the normal pressure steam flow portion, and a drain generated by condensation of the normal pressure steam.
- the pressure difference between the normal-pressure steam flow part and the atmospheric pressure is 0 to the number of minus 1 OOP a
- the atmospheric pressure steam and the heat exchange medium It is characterized by exchanging heat with the body.
- the above-described method for heat exchange of normal-pressure steam (1) uses the latent heat and partial sensible heat of the steam from the normal-pressure steam. Does not require sex. Therefore, heat exchange can be easily performed at a low cost with a simple structure.
- the form of heat to be used can be selected from hot air, hot water, radiant heat, and direct heating of the object, so that the degree of freedom of selection is high.
- the above-mentioned method for heat exchange of normal-pressure steam has many advantages as described above, so the use of normal-pressure steam is expanded, and the heat of combustion of municipal solid waste, the heat of combustion of biomass fuel, etc. This has a great industrial effect that leads to effective use.
- the method for heat exchange of normal-pressure steam according to the present invention (2) is the method for heat exchange of normal-pressure steam described in (1) above, wherein the heat-exchange capacity adjusting means is used to adjust the atmospheric pressure in the normal-pressure steam flow section. It is characterized in that the amount of heat exchange is adjusted by adjusting the ratio of heat exchange.
- the method for heat exchange of normal-pressure steam (2) has the advantages of the heat-exchange method for normal-pressure steam (1), and also sets the temperature of the heat exchange medium such as hot air and hot water to an arbitrary temperature. Since the heat exchange medium can be adjusted with high precision, the heat exchange medium after the heat exchange is easy to use, and has the effect of further expanding its use.
- normal pressure steam in which the pressure in the introduction section does not exceed the atmospheric pressure is mainly steam supplied from an open-system steam generator or a steam storage device.
- Pressure difference means 0 to minus several lOOPa (water column number 1 Omm). However, it is higher than the pressure in the normal-pressure steam flow section described above.
- a sufficient amount of steam is supplied to the steam piping from the open steam generator or steam storage device to the introduction section so that the pressure loss between them can be minimized. It is advisable to provide steam pipes with a large supply capacity as much as possible.
- the pressure difference from the atmospheric pressure means a range of 0 to minus 100 Pa, for example, about 0 to 500 Pa.
- the heat exchange medium is water or air (atmosphere), and the heat exchange medium member means a member that exchanges heat with normal pressure steam, and the heat exchange medium member directly communicates with normal pressure water vapor. It includes a heat exchange target that performs heat exchange.
- the temperature before the heat exchange may be any temperature as long as it can be used as a heat exchange medium.
- FIG. 1 is a perspective view showing a heat exchange structure for normal-pressure steam according to Embodiment (1) of the present invention.
- FIG. 2 is a schematic configuration diagram showing a discharge means and a heat exchange capacity adjusting means of the heat exchange structure for normal-pressure steam according to the embodiment (1).
- 3 (a) and 3 (b) are cross-sectional views for explaining the principle that the temperature of the heat exchange medium can be controlled by the heat exchange capacity adjusting means.
- FIGS. 4A and 4B are views showing a drain discharge section provided in the discharge means, wherein FIG. 4A is an external perspective view, and FIG.
- Fig. 5 shows a heat-exchange structure for normal-pressure steam suitable for the case where the heat-exchange medium according to the embodiment (2) is air, which uses the heat-exchange structure for normal-pressure steam shown in Fig. 1 as a basic component. It is an external appearance perspective view which shows a body.
- FIG. 6 shows a heat-exchange structure for normal-pressure steam according to the embodiment (3) in which the heat-exchange structure for normal-pressure steam shown in FIG. FIG.
- FIGS. 7A and 7B are diagrams for explaining the heat exchange structure for normal-pressure steam according to the embodiment (4), where FIG. 7A is a perspective view in partial cross section, and FIG. 7B is a perspective view of a main part.
- FIGS. 8A and 8B are diagrams for explaining the heat exchange structure for normal-pressure steam according to the embodiment (5), wherein FIG. 8A is a partial cross-sectional perspective view, and FIG. FIG. 9 is a view for explaining a heat exchange structure for normal-pressure steam according to the embodiment (6), in which (a) is a partial cross-sectional perspective view, and (b) and (c) are cross-sectional views thereof. It is.
- FIG. 10 is a partial cross-sectional perspective view illustrating a heat exchange structure for normal-pressure steam according to the embodiment (7).
- FIG. 1 to FIG. 4 are views for explaining the embodiment (1) according to the present invention.
- FIG. 1 is a perspective view showing a normal-pressure steam heat exchange structure 1A according to the embodiment (1)
- FIGS. 2 to 4 are normal-pressure steam heat exchange structures according to the embodiment (1).
- FIGS. 5 and 6 are diagrams illustrating details of the structure, and are diagrams showing heat-exchange structures 1 B and 1 C for normal-pressure steam according to the embodiments (2) and (3), respectively. .
- the embodiments (1) to (3) are directed to a case where the heat exchange medium flows outside the atmospheric pressure steam flow section. As shown in FIG.
- the heat-exchange structure for normal-pressure steam 1A has a normal pressure.
- a normal-pressure steam flow section 4 having a water-steam 1 introduction section 2, a heat-dissipating section 3, a discharge means 5 provided at an end of the normal-pressure steam flow section 4, and a heat exchange capacity adjusting means 6 are provided.
- the normal-pressure steam 1 is introduced from the introduction section 2, and is condensed into a drain by radiating heat in the radiating section 3, and the drain is discharged from the discharge means 5. .
- the heat radiating section 3 it is necessary to convert the energy of the atmospheric steam 1 into heat as efficiently as possible.
- the heat radiating section 3 is preferably made of a metal material such as iron or iron alloy, aluminum, copper or the like having good heat conductivity. Part 3 The area should be as large as possible.
- FIG. 2 is a schematic configuration diagram showing an example of an apparatus in which the discharge means 5 and the heat exchange capacity adjusting means 6 in the heat exchange structure for normal pressure steam 1A are integrated.
- This device can also be used for a heat exchange structure for normal-pressure steam 1B to 3A to be described later.
- the discharge means 5 is configured to include a suction pump 5 b having an opening / closing valve 5 c connected between the drain discharge section 5 a and the normal-pressure steam flow section 4.
- the drain discharge part 5 a of the discharge means 5 is a device for discharging water generated by condensation of steam by heat exchange in the normal-pressure steam flow part 4.
- a drain collecting section (not shown) is provided at the lower part of the lower part of the normal-pressure steam flow section 4 so that the drain can be collected easily.
- the drainage part 5a will be described later in detail.
- the suction pump 5b is in the rest state, In other words, when starting from a state in which the inside of the normal-pressure steam flow section 4 is not filled with steam, the air inside the normal-pressure steam flow section 4 is forcibly sucked and discharged in advance, or Used to forcibly discharge air to adjust the ratio of air to normal-pressure water vapor in the radiator 3.
- the suction pump 5b is also used as an air flow part for sucking the air for heat exchange capacity adjustment in the heat exchange capacity adjustment means 6 to be described later into the atmospheric pressure steam flow part 4. Is done.
- the heat exchange capacity adjusting means 6 may be provided with a valve for introducing the air, and the heat exchange capacity adjusting means 6 introduces the outside air into the normal-pressure steam flow section 4 so that the heat exchange medium after the heat exchange is formed. This is used to adjust the temperature.Open/close valve 5c is opened and closed based on the temperature sensor 6b for detecting the position of steam in the atmospheric steam passage 4 and the temperature measurement result.
- the control unit 6 d includes a control unit 6 d that controls the amount of air introduced into the normal-pressure steam flow unit 4 by adjusting and driving the suction pump 5 b.
- FIG. 3 is a cross-sectional view taken along the line AA in FIG. 1, and is for explaining the principle that the temperature of the heat exchange medium after heat exchange can be controlled by the heat exchange capacity adjusting means 6.
- FIG. FIG. 3 (a) shows a state in which the heat radiating section 3 provided in the normal-pressure steam flow section 4 is filled with the normal-pressure steam 1 (dot section). In this case, since heat exchange is performed in almost all regions of the heat radiating section 3, the temperature of the heat exchange medium after the heat exchange becomes high.
- Fig. 3 (b) shows a state in which the atmosphere 9 (white background) is introduced into almost half of the content area of the heat radiating section 3.
- the air 9 When the air 9 is introduced into the heat radiating section 3, the air 9 collects together with the non-condensable gas contained in the normal-pressure steam on the discharge pipe 7 side of the normal-pressure steam flow section 4. In this case, heat is exchanged in almost half of the heat radiating section 3. Therefore, the heat exchange between the normal pressure steam 1 and the heat exchange medium is about half compared to the case of Fig. 3 (a). That is, the temperature of the heat exchange medium after the heat exchange becomes lower than that in the case of FIG. In this way, by adjusting the amount of the air 9 introduced into the normal-pressure steam flow section 4 (heat radiating section 3), the temperature of the heat exchange medium after heat exchange can be adjusted in a wide range. Can be.
- the temperature sensor 6 b used in the heat exchange capacity adjusting means 6 shown in FIG. 2 is a sensor for detecting the area where the normal-pressure steam 1 or the atmosphere 9 exists in the normal-pressure steam flow section 4. This sensor only needs to be able to discriminate between normal-pressure steam 1 and the atmosphere 9, and other sensors than the temperature sensor can be used. For example, the electric resistance value It is also possible to use a sensor for measuring the temperature.
- FIG. 4 is a view showing a drain discharge portion 5a provided in the discharge means 5 described above, wherein FIG. 4 (a) is an external perspective view, and FIG. 4 (b) is a longitudinal sectional perspective view.
- the drain discharge section 5a shown in FIG. 4 has a U-shaped tubular cross section, and one end 41 (hereinafter referred to as a connection end 41) has a discharge pipe 7 shown in FIGS.
- the drain is connected so that it can flow in from the other end, and the other end 42 (hereinafter referred to as a closed end 42) is closed at the end.
- a drain port 43 communicating with the wall of the tubular portion, and an opening 44 is formed below the drain port 43.
- a floating body 46 is inserted between the opening 44 and the closed end 42.
- the floating body 46 floats on water, has a specific gravity of less than 1, preferably about 0.5, and has a size that does not pass through the opening 44 and the drain 43.
- the floating body 46 is forcibly discharged from the drain and the atmosphere in the normal-pressure steam flow part 4 by the suction pump 5b provided in the discharging means 5 shown in FIG. It is provided to prevent the air from being sucked from the drain discharge section 5a when discharging. Since the floating body 46 is lighter than the water, if the drain is discharged, it will float on the water and will not obstruct the drain. However, the floating body 46 closes the opening 44 when the air starts to be sucked from the opening 44, and acts so that the air is not sucked from the opening 44.
- the relationship between the shape of the floating body 46 and the shape of the opening 44 is such that the floating body 46 has a spherical shape, and the opening 44 has a circular shape smaller in diameter than the floating body 46.
- any other shape may be used as long as the opening can be closed by the floating body.
- the floating body need not be spherical, for example, if the opening is elliptical.
- the opening may have a square shape, and the floating body may have a pyramid shape or a plate shape.
- the heat-dissipating unit 3 provided in the normal-pressure steam flow part 4 and the normal-pressure steam 1 exchange heat with the heat exchange medium. And heat exchange is performed between them.
- a heat exchange medium that has undergone heat exchange and is heated is generated.
- either air or water can be used as the heat exchange medium.
- FIG. 5 shows a heat-exchange structure for normal-pressure steam according to the embodiment (2) in which the heat-exchange structure for normal-pressure steam 1A shown in FIG. 1 is a basic component.
- FIG. 1 is an external view showing a heat-exchange structure for normal-pressure steam 1B suitable for a case where air is air.
- This heat-exchange structure for normal-pressure steam 1B is different from the heat-exchange structure for normal-pressure steam 1A shown in FIG. 1 in that an air flow portion 51 is further provided outside the heat-exchange structure 1A for normal-pressure steam. . That is, the heat exchange structure 1A for normal-pressure steam shown in FIG. 1 is housed in the air flow section 51.
- the normal pressure steam 1 is introduced from the normal pressure steam 1 introduction part 2 and the heat radiation part 3 of the normal pressure steam flow part 4 installed inside the air flow part 51.
- the heat is exchanged to form a drain, which is discharged from the drain discharge section 5a.
- a blower (not shown) for circulating air is provided inside the air flow section 51, and the air 52, which is a heat exchange medium, is air-cooled. The air is forcibly sucked from the upper part of the flow part 51, heat exchanged while passing through the heat radiating part 3, becomes hot air 53, and is sent out from the lower part.
- the heat-exchange structure for normal-pressure steam 1B shown in FIG. 5 is suitable as a heating device.
- the heat-exchange structure for normal-pressure steam 1B it is easy to adjust the temperature of the hot air 53 to a desired temperature by the heat-exchange capacity adjusting means 6 described above.
- it has the advantage that the temperature of the hot air can be easily adjusted even if the air volume is fixed. Since there is no need to increase or decrease the amount of heat exchange in the heat radiating section 3, it is advantageous to maintain a comfortable indoor circulation flow of air because it is not necessary to increase or decrease the amount of air blow.
- FIG. 6 shows a normal-pressure-steam heat exchange structure according to the embodiment (3) in which the normal-pressure-steam heat-exchange structure 1A shown in FIG. 1 is used as a basic component.
- FIG. 4 is a partial cross-sectional perspective view showing a heat exchange structure for normal pressure steam 1C suitable for water.
- This heat-exchange structure for normal-pressure steam 1C is different from the heat-exchange structure for normal-pressure water and steam 1A shown in FIG. 1 in that a water flow section 61 is further provided outside the heat-exchange structure 1A. I have. That is, the heat exchange structure 1A for normal-pressure steam shown in FIG. 1 is housed in the water flow section 61.
- the water flow section 61 is in the form of a container, the periphery of which is insulated with a heat insulating material.
- the mode of heat exchange of the normal-pressure steam flowing through the normal-pressure steam heat exchange structure 1C disposed inside the water flow part 61 is the same as that of the normal-pressure steam heat exchange structure 1B shown in FIG. Same as case.
- the water supplied from the water supply section 62 to the water flow section 61 is heat-exchanged while passing through the radiating section 3 and rises in temperature.The water becomes hot water and is taken out from the hot water outlet section 63.
- the container-like water storage section constituting the water flow section 61 is covered with the heat insulating material as described above so as not to dissipate the heat of the hot water. Further, it is preferable that the water supply section 62 be installed at the bottom of the water flow section 61, that is, below the heat radiation section 3.
- the hot water extracting section 63 may be attached to the upper side of the side wall surface instead of the ceiling of the water flowing section 61.
- the heat exchange structure for normal-pressure steam 1C shown in Fig. 6 is a hot-water storage type hot water supply device. It is suitable.
- FIGS. 7 and 8 are diagrams for explaining the heat exchange structure for atmospheric water vapor according to the embodiments (4) and (5) of the present invention.
- FIGS. 7 (a) and 7 (b) are partial cross-sectional perspective views showing a heat exchange structure 2A for normal-pressure steam according to the embodiment (4), perspective views of essential parts
- b) is a partial cross-sectional perspective view showing a heat-exchange structure for normal-pressure steam (2B) according to Embodiment (5), and a perspective view of a main part.
- Embodiment (4) is a case in which the heat exchange medium flows through the inside of the normal-pressure steam flow section 71, and the inside of the normal-pressure steam flow section 71 communicates with the heat exchange medium.
- This is a suitable form for performing heat exchange between them. Therefore, in the case of Embodiments (4) and (5), the normal-pressure steam flow section of the normal-pressure steam heat exchange structures 2A and 2B has the heat-radiating section 3 as shown in FIG. 7 and 8, the outer peripheral part is surrounded by a heat insulating member 71a, and is a substantially closed container having a certain volume as shown in FIG. 7 and FIG. It is configured.
- the heat-exchange medium is water 72
- the heat-exchange-medium passage is a container-like normal-pressure steam.
- a water supply section 74 that communicates with the outside of the flow section 71, water spraying means 76, a drainage section 75, and a water spraying means 76 arranged in the container-like normal-pressure steam flow section 71.
- a space formed between the drainage part 75 is formed between the normal pressure water vapor introduction section 2 and the discharge means 5 allow the normal pressure water vapor flow section 7 1 to flow through the normal pressure water vapor flow section 71 1.
- a heat exchange capacity adjusting means 6 is provided.
- the normal-pressure steam 1 is introduced from the inlet 2, flows through the container-like normal-pressure steam flow part 71, and is heat-exchanged and condensed. It becomes hot water.
- water 72 as a heat exchange medium is supplied from a water supply unit 74 and is sprayed from a water spraying unit 76 arranged at an upper part in the atmospheric pressure steam flow unit 71.
- the sprayed water falls in the atmospheric pressure steam flow section 7 1 in the process of falling.
- This hot water is taken out of the drainage section 75 together with the hot water generated by condensation of the normal-pressure steam, and the hot water taken out is used as a heat source.
- the discharging means 5 is indispensable.
- the positional relationship between the introduction part 2 of the normal-pressure steam 1 and the discharge means 5 is as follows: the introduction part 2 is located as high as possible on the wall of the normal-pressure steam flow part 71, and the discharge means 5 faces the introduction part 2. It is preferable to use the lower part of the wall.
- a water level sensor 77 is provided as shown in Fig. 7 (a) to obtain a stable water level in the normal-pressure steam flow section 71, and a water supply valve is provided based on the water level information.
- the flow rate of supply water is controlled by adjusting 7.8.
- FIG. 7 (b) is a perspective view of a main part showing the water spraying means 76 described above.
- the spraying means 76 is composed of a water supply pipe 76a leading to the water supply section 74, a plurality of water supply pipes 76b branched from the water supply pipe 76a, and a plurality of nozzles 76 provided in the water supply pipe 76b. It consists of c.
- the water to be sprayed should be as small as possible to increase the heat exchange efficiency. For this purpose, many small diameter nozzles 76c should be provided.
- the direction of the nozzle 76c may be upward or obliquely upward instead of downward.
- the installation position of the spraying means 76 is set at a height at which the sprayed water does not reach the ceiling of the atmospheric pressure steam flow section 71.
- the heat-exchange structure for normal-pressure steam 2B includes a water-exchange medium of water 72, and a container-like normal-pressure steam flow portion 71. This is the same as in the case of the heat exchange structure for normal pressure steam 2A. However, the difference is that the heat exchange medium flow section is constituted by a heat exchange section 86 having a number of heat exchange tubes 86 b instead of the water spraying means 76. Ie The heat exchange medium flow section is located in the water supply section 84 that communicates with the outside of the container-shaped normal-pressure steam flow section 71, the drainage section 85, and the container-shaped normal-pressure steam flow section 71. The heat exchange section 86 thus formed is integrally formed.
- the normal-pressure steam 1 is introduced from the inlet 2, flows through the container-like normal-pressure steam flow section 71, and heats up in the heat exchange section 86 during that time.
- the condensed drain is exchanged, and the condensed drain is discharged from the discharging means 5.
- the water 72 as the heat exchange medium is supplied from the water supply section 84 and flows through the heat exchange pipe 86 b of the heat exchange section 86 arranged in the normal-pressure steam flow section 71. Then, the temperature rises due to heat exchange with the normal-pressure steam 1 to become hot water. This hot water is taken out from the drainage section 85, and the hot water taken out is used as a heat source.
- the positional relationship between the introduction part 2 of the normal-pressure steam 1 and the discharge means 5 is as follows. It is preferable that the introduction section 2 is located at a position as high as possible on the wall of the atmospheric pressure steam flow section 71, and the discharge means 5 is located at a lower portion of the wall facing the introduction section 2.
- FIG. 8 (b) is a perspective view of a main part showing the tubular heat exchange section 86 described above.
- the heat exchange section 86 is a rectangular parallelepiped header section 86a communicating with the water supply section 84, a plurality of heat exchange pipes 86b branched from the header section 86a, and a rectangular parallelepiped communicating with the drain section 85. It is composed of a shaped water collecting section 86c.
- the heat exchange tube 86b is a thin-walled tube made of a material with high thermal conductivity in order to increase the heat exchange efficiency. For example, a steel tube often used for heat exchange, a non-ferrous metal tube such as an aluminum tube and a copper tube, and the like are preferable.
- the normal-pressure steam flow part 7 (FIG. 2) is provided by the heat exchange capacity adjusting means 6 (FIG. 2).
- the temperature of the heat exchange medium after heat exchange that is, the temperature of hot water, can be adjusted by adjusting the amount of air introduced into the chamber. The adjustment of the temperature is almost the same as that of the embodiment (1), so that the detailed explanation is omitted here.
- FIG. 9 is a view for explaining the heat-exchange structure for normal-pressure steam according to the embodiment (6).
- FIG. 9 is a partial cross-sectional perspective view showing the heat-exchange structure 3A for normal-pressure steam and its cross-section.
- Embodiment (6) is that the heat exchange medium is a heat exchange medium member provided on at least one surface of the normal-pressure steam flow section, and mainly radiates heat from the heat of the normal-pressure steam. It is for generating. That is, the embodiment (6) does not convert the heat of the normal-pressure steam into hot water or hot air, but raises the temperature of the heat-exchange medium member by the normal-pressure steam, The radiant heat generated is intended to be used as a heat source.
- the normal-pressure steam flow section 91 of the heat-exchange structure 3A for normal-pressure steam forms a heat radiator as shown in FIG.
- the outer peripheral portion is surrounded by a heat insulating member and at least a heat exchange medium member 92 provided on at least one surface and an infrared transmitting member 93 on the front surface thereof. It is configured as a substantially closed container having a volume.
- an introduction part 2 and a discharge means 5 for the normal-pressure steam 1 are provided on the wall of the container-like normal-pressure steam flow part 91.
- Atmospheric-pressure steam heat exchange structure 3A shown in Fig. 9 (a) has at least one of the wall surfaces including the ceiling surface surrounding the container-like atmospheric-pressure steam flow passage 91. It is composed of a plate-like heat exchange medium member 92 and an infrared transmitting member 93 provided on the front surface thereof, and the other wall surfaces are surrounded by a heat insulating member.
- Fig. 9 (b) is a cross-sectional view taken along line B-B in Fig. 9 (a) of the normal-pressure steam flow section 91
- Fig. 9 (c) is a diagram of Fig. 9 (a) of the normal-pressure steam flow section 91.
- FIG. 2 is a sectional view taken along line C-C of FIG.
- the normal-pressure steam 1 is introduced into the normal-pressure steam flow section 91 from the introduction section 2 and flows according to a flow path formed by being partitioned by the partition plate 94, during which the normal steam 1 communicates with the heat exchange medium member 92. The heat is exchanged between them, and the water is discharged from the discharge means 5 to the outside as condensed water.
- the heat exchange medium member 92 is preferably made of a metal material having a high thermal conductivity, such as copper or aluminum. Atmospheric pressure steam is obtained by heat exchange with atmospheric pressure steam 1. When the temperature of the surface in contact with 1 rises, the temperature of the outer surface (heat dissipation surface) rises due to heat conduction, and radiant heat is emitted forward from the heat dissipation surface. When the radiant heat is released, the temperature of the heat dissipation surface of the heat exchange medium member 92 decreases, so that heat flows from the inside to the outside in the thickness direction of the heat exchange medium member 92. Therefore, when the normal-pressure steam flows constantly, the heat constantly flows from the inside to the outside of the heat exchange medium member 92, and the radiant heat is continuously released. Note that the heat dissipation surface of the heat exchange medium member 92 is preferably subjected to a black body treatment in order to improve the emission characteristics of infrared rays.
- the infrared transmissive member 93 provided on the front surface of the heat exchange medium member 92 is a member for effectively generating radiant heat, and the heat on the heat dissipation surface of the heat exchange medium member 92 reduces the heat of the air. It serves to prevent loss due to convection.
- the space between the heat exchange medium member 92 and the infrared permeable member 93 is an air layer 95 in a substantially sealed state. Therefore, the heat transfer loss to the outside due to the convection of the air layer 95 air can be reduced.
- the infrared transmitting member 93 is formed of a material having a property of transmitting infrared light, for example, a transparent polyethylene film, it does not block transmission of radiant heat. Therefore, it is possible to efficiently apply the radiant heat to the object in front of the heat exchange medium member 92 to heat the object.
- One example of the calculation result of the amount of heat released from the heat dissipation surface of the heat exchange medium member 92 is as follows. Sufficient normal-pressure steam 1 is supplied to the normal-pressure steam flow section 91, and the steam condenses at 100 ° C, and the heat-dissipating surface of the heat exchange medium member 92 is blackened. It shall be.
- the heat exchange medium member 92 is made of copper having a high thermal conductivity
- the temperature of the heat dissipation surface of the heat exchange medium member 92 is also approximately 100 ° C. In that case, from the heat dissipation surface about 1. Lk WZm Z il. 1 k J / s -m 2) of heat is released.
- the temperature of the heat dissipation surface of the heat exchange medium member 92 can be controlled to some extent.
- the temperature of the heat dissipation surface is 8 0 ° C, 6 0 ° C, 4 0 ° C is their respective 0. 8 8, 0. 7 0 , 0. 5 4 k W / m 2 (0 . 8 8, 0.70, 0 . 5 4 k J / s -m 2) of heat is released.
- the heat exchange capacity adjusting means 6 allows the air to flow into the normal-pressure steam flow section 91.
- the amount of introduced air By adjusting the amount of introduced air, the amount of heat exchange of the heat exchange medium member 92, that is, the amount of radiant heat can be easily adjusted.
- the adjustment of the amount of radiant heat is almost the same as in the case of the embodiment (1), and the detailed description thereof is omitted here.
- the above-mentioned heat exchange structure for normal-pressure steam 3A When used as a component of a building such as a wall or a ceiling of a structure, it heats or heats a person or an object located in front of the heat dissipation surface. The temperature can be controlled efficiently.
- a separate heating device or heating device instead of being used as a component of a building, it can also be used as a separate heating device or heating device, attached to a wall or ceiling.
- FIG. 10 is a partial cross-sectional perspective view illustrating a heat-exchange structure for normal-pressure steam according to Embodiment (7).
- the object to be heated 102 is placed in the container-like normal-pressure steam flow portion 101.
- a mounting table 103 is provided.
- the container-shaped normal-pressure steam flow section 101 is connected to the normal-pressure steam 1 introduction section 2, discharge means 5, and the normal-pressure steam 1 so that the normal-pressure steam 1 can flow therethrough. 6 are provided.
- the normal-pressure steam 1 is introduced from the inlet 2, flows through the container-like normal-pressure steam flow section 101, and communicates with the object to be heated 102.
- the heat is directly exchanged between them, and condensed to form a drain, which is discharged from the discharging means 5.
- the mounting table 103 for the object to be heated 102 has a network-like water permeability so that the drain generated by condensation of the normal-pressure steam easily flows down. It is composed of things.
- the position of the introduction part 2 of the normal-pressure steam 1 and the discharge means 5 is such that the introduction part 2 is located as high as possible on the wall of the normal-pressure steam flow part 101, and the discharge means 5 is It is preferred to be at the lower part of the wall facing the entrance 2.
- the heat exchange capacity adjusting means 6 allows the inside of the normal-pressure steam flow section 101 to be formed.
- the amount of air introduced into the heater it is possible to adjust the amount of heat exchange with the object to be heated, that is, the heating conditions of the object to be heated.
- the adjustment of the heat exchange amount is almost the same as that of the embodiment (1), and therefore, detailed description thereof is omitted here.
- the adjustment of whether the normal pressure steam 1 is filled or not is also included.
- the discharging means 5 has the configuration shown in FIG.
- a suction pump 5b is provided.
- the suction pump 5b is operated in a non-operating state, that is, when starting from a state in which the inside of the normal-pressure steam flow passages 4, 71, 91, and 101 is not filled with steam. This is used when the air inside the normal-pressure steam flow section 4, 71, 91, 101 is forcibly sucked and discharged in advance.
- A, 4 Effective for stable operation of A.
- the discharge means 5 includes the drain discharge section 5a having the configuration shown in FIG.
- the atmospheric pressure steam heat exchange structure 1A to 1C according to the present invention described in the embodiments (1) to (7), 1A to 1C, 2A, 2B, 3A, and 4A When heat exchange is performed, the normal-pressure steam flow sections 4, 71, 91, and 101 are maintained at a pressure difference from atmospheric pressure of 0 to minus 1 OOPa. , Normal pressure steam It is preferable to perform heat exchange between the heat exchanger and the heat exchange medium. , Industrial availability
- the present invention can be used by collecting waste heat as normal-pressure steam as needed. Also, the present invention can be used when biomass resources are converted to fuel and used. In addition, the heat generated by widespread combustion can be used effectively. In addition, steam after power generation using superheated steam, steam discharged from the kojen ration system, and the like can be used as normal-pressure steam when the present invention is applied.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003220939A AU2003220939A1 (en) | 2002-03-19 | 2003-03-14 | Heat exchange structure body for atmospheric pressure steam and heat exchange method |
JP2003576872A JPWO2003078904A1 (ja) | 2002-03-19 | 2003-03-14 | 常圧水蒸気用熱交換構造体および熱交換方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2002-075682 | 2002-03-19 | ||
JP2002075682 | 2002-03-19 |
Publications (1)
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WO2003078904A1 true WO2003078904A1 (fr) | 2003-09-25 |
Family
ID=28035383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/003126 WO2003078904A1 (fr) | 2002-03-19 | 2003-03-14 | Structure d'echange thermique pour vapeur a pression atmospherique et procede d'echange thermique |
Country Status (3)
Country | Link |
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JP (1) | JPWO2003078904A1 (ja) |
AU (1) | AU2003220939A1 (ja) |
WO (1) | WO2003078904A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8028438B2 (en) * | 2004-07-02 | 2011-10-04 | Aqualizer, Llc | Moisture condensation control system |
CN102692139A (zh) * | 2012-05-30 | 2012-09-26 | 深圳中兴新源环保股份有限公司 | 水膜蒸发凝汽器真空管箱 |
JP5884889B1 (ja) * | 2014-12-24 | 2016-03-15 | 株式会社ノーリツ | 給湯装置 |
CN110507211A (zh) * | 2019-08-28 | 2019-11-29 | 广东美的厨房电器制造有限公司 | 蒸汽冷却装置及蒸汽设备 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6237317B2 (ja) * | 1983-03-07 | 1987-08-12 | Kanagawaken | |
JPH026997B2 (ja) * | 1984-03-28 | 1990-02-14 | Kanagawa Prefecture | |
JPH08170885A (ja) * | 1994-12-15 | 1996-07-02 | Tlv Co Ltd | 蒸気加熱装置 |
JPH11182804A (ja) * | 1997-12-24 | 1999-07-06 | Takahiro Agata | 開放型ヒートパイプによる熱エネルギー輸送法 |
JP2000105086A (ja) * | 1998-09-29 | 2000-04-11 | Hitachi Zosen Corp | 多管式熱交換器 |
-
2003
- 2003-03-14 JP JP2003576872A patent/JPWO2003078904A1/ja active Pending
- 2003-03-14 WO PCT/JP2003/003126 patent/WO2003078904A1/ja active Application Filing
- 2003-03-14 AU AU2003220939A patent/AU2003220939A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6237317B2 (ja) * | 1983-03-07 | 1987-08-12 | Kanagawaken | |
JPH026997B2 (ja) * | 1984-03-28 | 1990-02-14 | Kanagawa Prefecture | |
JPH08170885A (ja) * | 1994-12-15 | 1996-07-02 | Tlv Co Ltd | 蒸気加熱装置 |
JPH11182804A (ja) * | 1997-12-24 | 1999-07-06 | Takahiro Agata | 開放型ヒートパイプによる熱エネルギー輸送法 |
JP2000105086A (ja) * | 1998-09-29 | 2000-04-11 | Hitachi Zosen Corp | 多管式熱交換器 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8028438B2 (en) * | 2004-07-02 | 2011-10-04 | Aqualizer, Llc | Moisture condensation control system |
CN102692139A (zh) * | 2012-05-30 | 2012-09-26 | 深圳中兴新源环保股份有限公司 | 水膜蒸发凝汽器真空管箱 |
JP5884889B1 (ja) * | 2014-12-24 | 2016-03-15 | 株式会社ノーリツ | 給湯装置 |
CN110507211A (zh) * | 2019-08-28 | 2019-11-29 | 广东美的厨房电器制造有限公司 | 蒸汽冷却装置及蒸汽设备 |
Also Published As
Publication number | Publication date |
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AU2003220939A1 (en) | 2003-09-29 |
JPWO2003078904A1 (ja) | 2005-07-14 |
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