WO1998043027A1 - Absorbeur de refrigerateur a absorption - Google Patents
Absorbeur de refrigerateur a absorption Download PDFInfo
- Publication number
- WO1998043027A1 WO1998043027A1 PCT/JP1998/001289 JP9801289W WO9843027A1 WO 1998043027 A1 WO1998043027 A1 WO 1998043027A1 JP 9801289 W JP9801289 W JP 9801289W WO 9843027 A1 WO9843027 A1 WO 9843027A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heat transfer
- plate
- absorber
- absorption
- cooling water
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B37/00—Absorbers; Adsorbers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D3/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium flows in a continuous film, or trickles freely, over the conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/01—Geometry problems, e.g. for reducing size
Definitions
- the present invention relates to an absorber for absorbing refrigerant vapor generated from an evaporator into an absorption liquid in an absorption refrigerator.
- an eliminator (30) is installed inside a closed drum (3), and an evaporator chamber (31) and an absorber are installed on both sides.
- a chamber (32) is formed, an evaporator (not shown) is installed in the evaporator chamber (31), and an absorber (50) is installed in the absorber chamber (32).
- a pipe (62) extending to a high-temperature regenerator through a low-temperature heat exchanger and a high-temperature heat exchanger is connected to the bottom of the closed drum (3). 6) is attached.
- the absorber (50) is equipped with a cooling water dispersing mechanism (4) connected to the end of a pipe (61) extending from the low-temperature heat exchanger, and a cooling system including a plurality of cooling water pipes (2) extending horizontally. It consists of a water piping system.
- the absorbing liquid (aqueous lithium bromide solution) is sprayed from the absorbing liquid spraying mechanism (4) toward the cooling water pipe (2) as shown by a broken line.
- the absorbing liquid absorbs the refrigerant vapor generated from the evaporator in the process of falling, and the absorbing liquid whose temperature has risen due to the heat of condensation and the heat of mixing (absorbing heat) generated at this time passes through the cooling water pipe (2). It is cooled by the cooling water flowing through.
- the absorbing liquid sprayed from the absorbing liquid spraying mechanism (4) first falls on the outer peripheral surface of the uppermost cooling water pipe (2), and remains in a droplet-like outer peripheral surface. After flowing down, it falls onto the outer peripheral surface of the lower cooling water pipe (2). Like this As a result, the absorbing liquid is transmitted to the lower cooling water pipe (2) in the order of droplets. Therefore, the absorbing liquid not only drops at a relatively high speed due to the action of gravity, but also does not spread sufficiently on the outer peripheral surface of the cooling water pipe (2), and the absorbing area of the absorbing liquid to absorb the refrigerant vapor is reduced. However, the wet area on the tube surface is small. As a result, sufficient absorption and heat exchange were not performed, and there was a problem that the absorption capacity of the absorber was low.
- an object of the present invention is to provide an absorber capable of obtaining higher absorption capacity than before. Disclosure of the invention
- the absorption liquid supply means is installed in a closed chamber to which the absorption liquid and the refrigerant vapor are to be supplied.
- the absorbing liquid supply means for example, a conventional absorbing liquid spraying mechanism (4) can be adopted.
- a cooling water piping system in which a plurality of cooling water pipings extending in a lateral direction are connected in series or in parallel to each other is installed, and a plurality of plate-shaped heat transfer members are connected to each other.
- the plurality of cooling water pipes penetrate through these plate-shaped heat transfer bodies, being arranged in a horizontal direction in a vertical posture with an interval therebetween.
- the cooling water is supplied into the cooling water pipe, and the surface of the plate-shaped heat transfer body and the cooling water pipe is sufficiently cooled by the cooling water.
- the absorbing liquid is supplied from the absorbing liquid supply means to the surface of the plate-shaped heat transfer body. After that, the absorbing liquid spreads on the surface of the plate-shaped heat transfer body, and the surface of the plate-shaped heat transfer body and the outer peripheral surface of the cooling water pipe. Down the river. In this process, the absorbing liquid comes into contact with the refrigerant vapor passing between the plate-shaped heat transfer bodies with a sufficient area to absorb the refrigerant vapor.
- the absorbing liquid wets the surface of the plate-shaped heat transfer body over a wide area.
- the absorbing liquid is decelerated by the flow resistance and flows over the surface of the plate-shaped heat transfer body for a sufficient time. Therefore, the plate heat transfer table Sufficient heat exchange occurs between the surfaces and the absorbent is effectively cooled.
- the absorbing liquid comes into contact with the refrigerant vapor over a large area to absorb the refrigerant vapor, and the heat generated thereby is effectively cooled by sufficient heat exchange, resulting in a high absorption capacity. Is obtained.
- each plate-like heat transfer body is constituted by one heat transfer plate.
- the plurality of cooling water pipes are arranged in a plurality of stages at intervals in the vertical direction, and each of the plate-shaped heat transfer bodies is one of the arrangements of the cooling water pipes. Is composed of a plurality of heat transfer plates provided for a plurality of stages.
- Each heat transfer plate extends in the horizontal direction, and a predetermined gap is provided between the lower end surface of the upper heat transfer plate and the upper end surface of the lower heat transfer plate of two vertically adjacent heat transfer plates. Have been.
- the gap is desirably set to 2 to 3 mm.
- One or more stages of the cooling water pipe arrangement penetrate each heat transfer plate, and all the heat transfer plates, or other heat transfer plates except the top heat transfer plate, The upper end surface and the upper end of the outer peripheral surface of the uppermost cooling water pipe passing through each heat transfer plate are aligned at the same or substantially the same height.
- the absorbing liquid is supplied to the surface of the uppermost heat transfer plate from the absorbing liquid supply means, and thereafter, the absorbing liquid is supplied to the surface of the plurality of heat transfer plates and the plurality of heat transfer plates. It flows down along the outer peripheral surface of the cooling water pipe. In this process, when a part of the absorbing liquid flowing down the outer peripheral surface of the cooling water pipe is separated from the cooling water pipe and flows down the surface of the heat transfer plate, it is separated from the cooling water pipe adjacent in the lateral direction. It may merge with a part of the absorbing liquid that flows down, and may flow as it is between the two cooling water pipes arranged below it.
- the absorber even if such a flow of the absorbing liquid occurs, when the flow of the absorbing liquid reaches the lower end surface of the heat transfer plate, a part of the absorbing liquid is reduced to the lower end surface of the heat transfer plate. And diffuses right and left along the upper end surface of the heat transfer plate below. Then, when the absorbent reaches the upper end of the outer peripheral surface of the uppermost cooling water pipe penetrating the lower heat transfer plate, the absorbent then flows down the outer peripheral surface of the cooling water pipe.
- the absorbing liquid that flows down along the surface of the heat transfer plate and the outer peripheral surface of the cooling water pipe is subjected to the above-described diffusion action each time it passes through the gap between the heat transfer plates, and the surface of the heat transfer plate Not only that, it also spreads sufficiently on the outer peripheral surface of the cooling water pipe to flow down.
- the above-described effects of the plurality of heat transfer plates, that is, the plate-shaped heat transfer members are exhibited, and the direct cooling effect of the cooling water pipe is sufficiently exhibited, and a high absorption capacity is obtained. become.
- the plurality of plate-shaped heat conductors are arranged at a pitch of 3 mm to 15 mm.
- the absorbing liquid comes into contact with the refrigerant vapor passing between the plate-shaped heat transfer bodies and absorbs the refrigerant vapor.
- the absorbents flowing on the opposing surfaces of the two adjacent plate-shaped heat exchangers approach each other. They will merge and flow down.
- the flow path of the refrigerant vapor is blocked by the absorbing liquid, the refrigerant vapor does not contact the absorbing liquid with a sufficient area, and the absorption capacity is greatly reduced.
- the pitch of the plate-like heat transfer material increases, the number of plate-like heat transfer materials arranged over the entire length of the cooling water pipe decreases, and the absorption area of the absorbing liquid to absorb the refrigerant vapor and If the wetting area of the absorbing liquid on the plate-like heat transfer body (the contact area of the absorbing liquid adhering to the plate-like heat transfer surface with the plate-like heat transfer surface; m 2 ) becomes small, and if the pitch exceeds 15 mm, However, the absorption and heat exchange of the conventional plate-shaped heat transfer material cannot be obtained which greatly exceed those of the absorber. Therefore, it is desirable to set the arrangement pitch of the plurality of plate-shaped heat conductors in the range of 3 to 15 mm.
- each plate-shaped heat transfer body is formed in a corrugated shape waving along the vertical direction.
- each plate-shaped heat transfer body has been subjected to surface processing in which irregularities appear along the vertical direction.
- the flow resistance when the absorbent flows down is increased, the flow speed is reduced as compared with the vertical flat plate-shaped heat transfer body, and the absorption area of the absorbent and the absorption area are reduced. Increased liquid wetting area allows more absorption and heat exchange You.
- a plurality of steam circulation holes are opened in each plate-shaped heat transfer body, away from the outer peripheral surface of each cooling water pipe.
- the refrigerant vapor supplied into the closed chamber generates a flow along the plate-shaped heat transfer body, and also generates a flow that penetrates the plate-shaped heat transfer body through the steam flow hole. Therefore, the refrigerant vapor flows evenly in the closed room without being obstructed by the plate-shaped heat transfer body, and is sufficiently absorbed by the absorbing liquid.
- the absorbing liquid supply means includes a flowing-down mechanism for flowing the absorbing liquid along the plurality of plate-shaped heat transfer bodies, and a supplying mechanism for supplying the absorbing liquid to the flowing-down mechanism.
- the flow-down mechanism has an absorption liquid tank in which the absorption liquid to be flown is stored, and a plurality of absorption liquid flow holes whose outlets are close to the surface of the plate-shaped heat transfer body are formed at the bottom of the absorption liquid tank.
- the absorption liquid is supplied from the supply mechanism of the absorption liquid supply means to the flow-down mechanism.
- the absorption liquid temporarily accumulates in the absorption liquid tank of the flow-down mechanism, and then flows out from the outlets of the plurality of absorption liquid flow-down holes.
- the absorbing liquid flowing out from the outlet of each absorbing liquid flow down hole is immediately transferred to the surface of the plate-shaped heat transfer body, and spreads on the surface of the plate-shaped heat transfer body. It flows down the surface.
- all the absorbing liquid flowing down from the absorbing liquid tank travels on the surface of the plate-shaped heat transfer body.
- part of the absorbing liquid supplied from above the plate-like heat transfer body toward the plate-like heat transfer body becomes two plate-like heat transfer bodies facing each other. It may flow down from the top cooling water pipe to the lower cooling water pipe in order, without being transmitted to the plate-shaped heat transfer body.
- the absorption liquid tank of the flow-down mechanism is provided for each plate-like heat transfer element so as to be connected to the upper end face of each plate-like heat transfer element. Extending in the direction.
- the absorbing liquid tank is provided for each plate-shaped heat transfer unit and unitized, even when the number of plate-shaped heat transfer units is changed in the design of the absorber, it is simply required. It is sufficient to increase or decrease the number of units, and it is not necessary to redesign the dimensions and shape of the flow-down mechanism according to the number. Therefore, it is easy to change the design of the absorber.
- the absorption liquid tank of the flow-down mechanism is connected across the upper end portions of all the plate-shaped heat transfer members, and is formed to have a size including all the upper end portions.
- At least one absorption liquid supply pipe may be connected to the absorption liquid tank. Therefore, the supply mechanism can be configured by one absorption liquid supply pipe, and the configuration of the supply mechanism is simplified.
- the absorption liquid flow-down hole of the flow-down mechanism is formed in a slit shape whose outlet extends along the surface of the plate-shaped heat transfer body.
- the absorption liquid accumulated in the absorption liquid tank of the flow-down mechanism flows out in a thin film form from the absorption liquid flow-down hole, and flows down as it is while spreading on the surface of the plate-shaped heat transfer body. Therefore, the absorption area of the absorption liquid and the wet area of the absorption liquid increase, and as a result, a larger absorption amount and heat exchange amount can be obtained.
- FIG. 1 is a partially broken perspective view showing a main part of the absorber of the first embodiment.
- FIG. 2 is a front view showing the arrangement of cooling water pipes in the absorber.
- FIG. 3 is a side view showing the arrangement of the heat transfer plates in the absorber.
- FIG. 4 is a graph showing the results of calculations regarding the absorption capacity performed to demonstrate the effects of the present invention.
- FIG. 5 is a cross-sectional view showing the shapes of the heat transfer plate and the cooling water pipe used in the above calculation.
- FIG. 6 is a partially broken perspective view showing a main part of the absorber of the second embodiment.
- FIG. 7 is a front view showing the arrangement of cooling water pipes in the absorber.
- FIG. 8 is a side view showing the arrangement of the heat transfer plates in the absorber.
- FIG. 9 is a front view showing another arrangement state of the cooling water pipes.
- FIG. 10 is a side view showing another shape of the heat transfer plate.
- FIG. 11 is a cross-sectional view illustrating various cross-sectional shapes of the heat transfer plate.
- FIG. 12 is a partially cutaway perspective view showing another example of the configuration of the absorption liquid flow-down hole in the absorber of the second embodiment.
- FIG. 13 is a partially cutaway perspective view showing a main part of an absorber in the third embodiment.
- FIG. 14 is a diagram showing dimensions and pitches of steam flow holes and cooling water pipe through holes formed in the heat transfer plate.
- FIG. 15 is a cross-sectional view illustrating a main part of an absorber according to the fourth embodiment.
- FIG. 16 is a graph showing the relationship between the absorption liquid flow rate and the refrigeration capacity.
- Fig. 17 is a schematic diagram showing an absorber installed in a closed drum in a double effect absorption refrigerator.
- the absorber of this embodiment is installed in an absorber chamber (32) formed in a closed drum (3), as in the conventional case shown in FIG.
- the inside of the absorber chamber (32) is used.
- a plurality of cooling water pipes (2) extending in the horizontal direction are arranged at a pitch of, for example, 22 mm both vertically and horizontally.
- a plurality of flat heat transfer plates (1) are arranged in a horizontal direction in a vertical posture at intervals from each other, and the plurality of cooling water pipes (2) are connected to these heat transfer plates (1).
- Penetrates vertically For example, a flat copper plate with a thickness Td of 0.5 mm is used as the heat transfer plate (1).
- the heat transfer plate (1) other well-known materials, for example, those made of aluminum or the like can be used.
- the pitch P of the heat transfer plate (1) is set to 3 to 15 mm.
- a V-shaped absorbing liquid tank (10) extending along the longitudinal direction of the top surface of the heat transfer plate (1) is integrated with the heat transfer plate (1) on the upper end surface of each heat transfer plate (1). Is formed.
- a plurality of absorption liquid flow-down holes (11) are provided at positions above both surfaces of the heat transfer plate (1) at intervals in the longitudinal direction of the heat transfer plate (1). The outlets of these absorption liquid flow holes (11) are in contact with the surface of the heat transfer plate (1). In this way, a plurality of absorption liquid tanks (10) formed for each heat transfer plate (1) constitute a flow-down mechanism.
- the cooling water is supplied into the cooling water pipe (2), and the surfaces of the heat transfer plate (1) and the cooling water pipe (2) are connected to the cooling water pipe (2).
- the temperature will be sufficiently lowered by the cooling water in the parentheses.
- the absorbent is supplied from the pipe (61) shown in FIG. 17 to the plurality of absorbent tanks (10) of the present embodiment shown in FIG.
- the absorption liquid temporarily accumulates in the absorption liquid tank (10) and then flows out of the outlets of the plurality of absorption liquid flow holes (11).
- the absorbent flowing out from the outlet of each absorbent flow down hole (11) is immediately transferred to the surface of the heat transfer plate (1) as shown by the two-dot chain line arrow and spreads on the surface of the heat transfer plate (1). It flows down along the surface of the heat transfer plate (1) and the outer peripheral surface of the cooling water pipe (2).
- all of the absorbing liquid flowing down from the absorbing liquid tank (10) travels along the surface of the heat transfer plate (1), and does not drop in the form of droplets as in the conventional case.
- the absorbing liquid comes into contact with the refrigerant vapor passing between the heat transfer plates (1) with a sufficient area to absorb the refrigerant vapor.
- the absorbing liquid wets the surface of the heat transfer plate (1) over a wide area.
- the absorbing liquid is decelerated by the flow resistance, it flows over the surface of the heat transfer plate (1) from the upper end to the lower end with sufficient time. As a result, a large heat exchange amount can be obtained.
- the absorbing liquid comes into contact with the refrigerant vapor over a large area to absorb the refrigerant vapor, and the heat generated thereby is effectively cooled by sufficient heat exchange. As a result, a high absorption capacity is obtained.
- Fig. 4 shows the results of calculations on the absorption capacity performed to demonstrate the effect of the present invention.
- the horizontal axis is the pitch Pd of the heat transfer plate (1), and the vertical axis is the same absorption capacity.
- the thickness Td of the heat transfer plate (1) is 0.5 mm
- the outer diameter Dt of the cooling water pipe (2) is 1 Z 2 inch or 5/8 inch
- the cooling water pipe ( 2) The thickness Tt of the heat transfer plate is 0.6 mm
- the flow rate of the cooling water flowing through the cooling water pipe (2) is 11.7 mZ s.
- the outer diameter D t of the cooling water pipe (2), the 1/2 inch, and the diameter of the heat transfer plate (1) are both 5 inches and 8 inches. Is a minimum of about 30%.
- the volume ratio gradually increases.
- the pitch Pd is 15 mm
- the volume ratio is about 95% when the outer diameter Dt of the cooling water pipe (2) is 1/2 inch, and is about 80% when the outer diameter Dt is 5/8 inch. .
- the pitch Pd of the heat transfer plates (1) increases, the number of heat transfer plates (1) arranged along the entire length of the cooling water pipe (2) decreases, and the absorption area of the absorbing liquid is reduced. This is because the wetted area (m 2 ) of the absorbing liquid on the heat transfer plate (1) is reduced.
- the pitch Pd exceeds 15 mm
- the wetted area is almost the same as that of the absorber (50) without the conventional heat transfer plate (1), and the heat exchange amount greatly exceeds the conventional heat exchange amount. Cannot be obtained.
- the volume ratio is considered to increase rapidly as shown in FIG. This is because when the heat transfer plates (1) approach each other, the absorbing liquids flowing on the two surfaces facing each other come into contact with each other, and the absorbing liquids merge and flow down, so that the refrigerant vapor flows. This is because the passage is blocked by the absorbing liquid, the refrigerant vapor does not contact the absorbing liquid with a sufficient area, and the absorbing capacity is greatly reduced.
- the pitch Pd of the heat transfer plate (1) is set in the range of 3 to 15 mm.
- the absorber (5) of this embodiment has a higher absorption capacity than the conventional absorber (50), and is required to exhibit the expected absorption capacity. Since the required volume is small, the absorber (5) can be downsized.
- the absorber (7) according to the present embodiment is the same as the absorber (1) according to the first embodiment, in which a plurality of absorption tanks (10) integrally formed on the upper end surface of each heat transfer plate (1) constitute a flow-down mechanism. In contrast to 5), a single absorption liquid tank (8) attached across the upper end of all heat transfer plates (1) is provided as a flow-down mechanism.
- a dish-shaped absorbing liquid tank (8) is attached to the upper end of all the heat transfer plates (1), and all the heat transfer plates (1)
- the upper end of the pipe penetrates the bottom of the absorption liquid tank (8).
- slit-shaped absorption liquid flow holes (81X81) are formed on both sides of each heat transfer plate (1) and extend along the surface of the heat transfer plate (1). In this way, as the flow-down mechanism, the absorbing liquid tank (8) spanning the upper ends of all the heat transfer plates (1) is attached.
- the surfaces of the heat transfer plate (1) and the cooling water pipe (2) correspond to the cooling water in the cooling water pipe (2). Warm enough The degree is decreasing.
- the absorbing liquid is supplied from the pipe (61) shown in FIG. 17 to the absorbing liquid tank (8) of this embodiment shown in FIG.
- the absorption liquid temporarily accumulates in the absorption liquid tank (8) and then flows out from each absorption liquid flow hole (81) along the surface of the heat transfer plate (1).
- the absorbing liquid flows out in a thin film form from the slit-shaped absorbing liquid flow-down hole (81)
- the absorbing liquid flows down while wetting the entire area of the surface of the heat transfer plate (1) in the width direction. Therefore, the absorption area of the absorbing liquid and the wetting area on the heat transfer plate (1) surface are further increased as compared with the first embodiment.
- the absorber (70) of the present embodiment has a plurality of steam flow holes (12) opened in each heat transfer plate (1) of the first embodiment.
- the cooling water pipes (2) have an outer diameter of 15.9 mm and a length of 207 O mm, are arranged in 17 rows x 18 stages, and have a total of 30 6 pipes.
- the heat transfer plates (1) have a size of 39.6 mm ⁇ 374 mm ⁇ 0.5 t, and 345 sheets are arranged at a pitch of 6 mm.
- the steam flow holes (12) have an inner diameter of 10 mm as shown in Fig. 14 and are formed at the same pitch of 22 mm as the cooling water piping through holes (13).
- the absorbing liquid supplied from the absorbing liquid tank (10) flows down while wetting the surface of the heat transfer plate (1), and in this process, the heat transfer plate (1) In the surface area where the absorbing liquid spreads and is wet, the above-mentioned effect is exhibited, but in the other surface area where the absorbing liquid is not wet, the above-mentioned effect is not sufficiently exhibited.
- a plurality of steam flow holes (12) are opened in the heat transfer plate (1), and the heat transfer plate (1) is opened. A flow of the refrigerant vapor passing through the air is generated. This allows the refrigerant vapor to flow evenly in the absorber chamber (32) without being obstructed by the heat transfer plate (1), and to be sufficiently absorbed by the absorbing liquid.
- a part of the absorbing liquid that wets the outer peripheral surface of the cooling water pipe (2) separates from the cooling water pipe (2) and is removed from the heat transfer plate (1).
- it merges with a part of the absorbing liquid that separates from the cooling water piping (2) adjacent in the lateral direction and flows down, and as it is, the two cooling water piping (2 ) (2).
- the above-described effect by the heat transfer plate (1) can be obtained, but such a flow is generated in the cooling water pipe (2). Since it does not flow on the surface, the direct cooling effect of the cooling water pipe (2) is weakened, and as a result, the expected absorption capacity expected in the first to third embodiments may not be obtained.
- a plurality of heat transfer plates (9) extending in the horizontal direction as shown in FIG. 15 are employed instead of the heat transfer plate (1).
- each heat transfer plate (9) is arranged in the vertical plane with a gap G of 2 to 3 mm in the vertical direction, and each heat transfer plate (9) has two upper and lower cooling water pipes.
- the arrangement of (2) is continuous.
- the upper end face of each heat transfer plate (9) and the upper cooling water penetrating each heat transfer plate (9) The upper end of the outer peripheral surface of the pipe (2) is aligned at the same height.
- the rest of the configuration is the same as that of the first embodiment shown in FIG. 1, and the uppermost heat transfer plate (9) is connected to an absorbing liquid tank (10).
- the absorbent transferred to the surface of the heat transfer plate (9) from the absorption liquid flow down hole (11) of the absorption liquid tank (10) receives the heat transfer plate (9) and the cooling water.
- the flow passing between two adjacent cooling water pipes (2) (2) Even if a flow that merges after flowing on the surface of these cooling water pipes (2X2) occurs, when such a flow of the absorbing liquid reaches the lower end surface of the heat transfer plate (9), the absorbing liquid A part of the heat spreads right and left along the lower end surface of the heat transfer plate (9) and the upper end surface of the heat transfer plate (9) thereunder.
- the absorbent reaches the upper end of the outer peripheral surface of the cooling water pipe (2), the absorbent then flows down the outer peripheral surface of the cooling water pipe (2).
- the absorbing liquid flowing down the surface of the heat transfer plate (9) and the cooling water pipe (2) is subjected to the above-described diffusion action every time the liquid passes through the gap between the heat transfer plates (9) and (9). In response to this, it spreads sufficiently not only on the heat transfer plate (9) but also on the surface of the cooling water pipe (2) and flows down. As a result, the above-described effect of the heat transfer plate (9) and a sufficient cooling effect of the cooling water pipe (2) are exhibited, and high absorption capacity is obtained.
- a plurality of cooling water pipes (2) can be arranged in a staggered manner as shown in FIG.
- a plurality of semicircular absorbing liquid flow holes (82) as shown in FIG. 12 are provided at the bottom of the absorbing liquid tank (8) shown in FIG. It is also possible to form
- the steam flow hole (12) shown in FIG. 13 is not limited to a circular shape, but may be formed in a vertically long slit shape, for example.
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- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98909857A EP0972999A4 (en) | 1997-03-25 | 1998-03-23 | ABSORBENT REFRIGERATOR WITH ABSORPTION |
US09/381,700 US6192704B1 (en) | 1997-03-25 | 1998-03-23 | Absorber of absorption system refrigerator |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9/72096 | 1997-03-25 | ||
JP9/72097 | 1997-03-25 | ||
JP7209797 | 1997-03-25 | ||
JP9072096A JPH10267458A (ja) | 1997-03-25 | 1997-03-25 | 吸収式冷凍機の吸収器 |
JP10/16057 | 1998-01-28 | ||
JP01605798A JP3378785B2 (ja) | 1997-03-25 | 1998-01-28 | 吸収式冷凍機の吸収器 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998043027A1 true WO1998043027A1 (fr) | 1998-10-01 |
Family
ID=27281238
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1998/001289 WO1998043027A1 (fr) | 1997-03-25 | 1998-03-23 | Absorbeur de refrigerateur a absorption |
Country Status (4)
Country | Link |
---|---|
US (1) | US6192704B1 (ja) |
EP (1) | EP0972999A4 (ja) |
CN (1) | CN1251164A (ja) |
WO (1) | WO1998043027A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1058069A1 (en) * | 1999-05-31 | 2000-12-06 | Haruo Uehara | Absorber |
CN106802018A (zh) * | 2015-11-26 | 2017-06-06 | 四川捷元科技有限公司 | 吸收式制冷单元 |
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US6581405B2 (en) * | 2000-02-15 | 2003-06-24 | Jong Hae Kim | Airconditioning system utilizing absorption chiller cell |
EP1870647B1 (en) * | 2005-04-06 | 2010-10-20 | Mayekawa Mfg. Co., Ltd. | Flooded evaporator |
FR2921467A1 (fr) * | 2007-09-25 | 2009-03-27 | Peugeot Citroen Automobiles Sa | Systeme d'echange thermique a plaques destine a la desorption en continu d'une solution a contre-courant d'une phase vapeur, notamment dans une climatisation par absorption |
JP5247519B2 (ja) * | 2009-02-17 | 2013-07-24 | 三洋電機株式会社 | 吸収器 |
DE102009052506B4 (de) * | 2009-11-11 | 2015-08-20 | Air Liquide Global E&C Solutions Germany Gmbh | Gaswäscher mit integriertem Wärmetauscher |
US8820112B2 (en) | 2011-05-16 | 2014-09-02 | Whirlpool Corporation | Flexible cooling system integration for multiple platforms |
US10018396B2 (en) | 2011-05-16 | 2018-07-10 | Whirlpool Corporation | Universal and flexible cooling module set (CMS) configuration and architecture |
CN106802026A (zh) * | 2015-11-26 | 2017-06-06 | 四川捷元科技有限公司 | 吸收式制冷单元浅槽式换热机构 |
CN106802013B (zh) * | 2015-11-26 | 2023-04-21 | 四川捷元科技有限公司 | 单元组合式制冷矩阵 |
DE202019106674U1 (de) * | 2019-11-29 | 2021-03-02 | Hochschule für angewandte Wissenschaften München | Plattenapparate für Stoff- und Wärmeübertragung in Sorptionswärmepumpen mit Separation von Flüssigkeits- und Dampfströmung |
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Publication number | Priority date | Publication date | Assignee | Title |
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JPH0468970U (ja) * | 1990-10-22 | 1992-06-18 | ||
JPH05322375A (ja) * | 1991-03-20 | 1993-12-07 | Ebara Corp | 液膜式伝熱器 |
JPH08178471A (ja) * | 1994-12-27 | 1996-07-12 | Daikin Ind Ltd | 吸収冷凍機用熱交換器及びその製造方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0468970A (ja) | 1990-07-10 | 1992-03-04 | American Teleph & Telegr Co <Att> | ファクシミリ装置 |
SE501503C2 (sv) * | 1993-05-14 | 1995-02-27 | Electrolux Ab | Absorbator för absorptionskylapparat |
JPH09152289A (ja) * | 1995-11-29 | 1997-06-10 | Sanyo Electric Co Ltd | 吸収式冷凍機 |
-
1998
- 1998-03-23 EP EP98909857A patent/EP0972999A4/en not_active Withdrawn
- 1998-03-23 US US09/381,700 patent/US6192704B1/en not_active Expired - Fee Related
- 1998-03-23 CN CN98803663A patent/CN1251164A/zh active Pending
- 1998-03-23 WO PCT/JP1998/001289 patent/WO1998043027A1/ja not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0468970U (ja) * | 1990-10-22 | 1992-06-18 | ||
JPH05322375A (ja) * | 1991-03-20 | 1993-12-07 | Ebara Corp | 液膜式伝熱器 |
JPH08178471A (ja) * | 1994-12-27 | 1996-07-12 | Daikin Ind Ltd | 吸収冷凍機用熱交換器及びその製造方法 |
Non-Patent Citations (1)
Title |
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See also references of EP0972999A4 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1058069A1 (en) * | 1999-05-31 | 2000-12-06 | Haruo Uehara | Absorber |
CN106802018A (zh) * | 2015-11-26 | 2017-06-06 | 四川捷元科技有限公司 | 吸收式制冷单元 |
CN106802018B (zh) * | 2015-11-26 | 2023-04-21 | 四川捷元科技有限公司 | 吸收式制冷单元 |
Also Published As
Publication number | Publication date |
---|---|
CN1251164A (zh) | 2000-04-19 |
EP0972999A1 (en) | 2000-01-19 |
US6192704B1 (en) | 2001-02-27 |
EP0972999A4 (en) | 2000-09-13 |
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