JP2009074741A - Adsorption heat exchanger - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent condensation of desorbed water vapor on an inner wall surface of a case 3 with a simple structure. <P>SOLUTION: The inside of a case 3 is composed of a first area A1 provided with an adsorbent filling layer 22 and a second area A2 not provided with the adsorbent filling layer 22, and a heat transferring plate 33 for transferring the heat of a hot water pipe 21 to a water vapor exposure face 31 which is an inner peripheral face 31a of the case 3 of the second area A2 and exposed to the water vapor, is disposed in the second area A2. As the water vapor exposure face 31a exposed to the water vapor without covered by the adsorbent filling layer 22 of the case 3, is heated by the heat transferred from the hot water pipe 21 through the heat transferring plate 33, the water vapor is prevented from condensing on the water vapor exposure face 31a of the case 3. Further the heat transferring plate 33 can be constituted with a simple structure only by fitting one end side of the hot water pipe 21 and the inner peripheral 31a of the case 3 to each other. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an adsorption heat exchanger in which an adsorbent performs a heat exchange action through adsorption / desorption of an adsorbed medium whose phase changes between a liquid phase and a gas phase. It is suitable for application to an adsorption-type refrigeration apparatus that evaporates a medium to be adsorbed by using the action of adsorbing and exhibits refrigeration capacity by its latent heat of evaporation.

In a refrigeration system using an adsorption heat exchanger, if the adsorbed medium desorbed from the adsorbent in the desorption process is condensed in the case inner wall surface or piping, the condensed water is adsorbed by the adsorbent in the next adsorption process. The refrigeration capacity is impaired. In order to prevent this reduction in the refrigerating capacity, in the adsorption type refrigerator shown in Patent Document 1 below, the case of the portion filled with the adsorbent is heated to the saturation temperature or higher of the adsorbed medium.
JP 9-196494 A

  However, in the prior art in the above-mentioned Patent Document 1, since the wall surface to which condensed water can adhere is the entire surface of the case, it is necessary to cover the entire adsorption heat exchanger, which increases the cost. Furthermore, in the structure of the prior art, when condensed water adheres to the case wall surface for some reason, there is a problem that it always stays around the adsorbent or recirculates to the evaporator side.

  The present invention has been made paying attention to such problems existing in the prior art, and its first object is to prevent the adsorbed medium from condensing on the inner wall surface of the case with a simple structure. An object of the present invention is to provide an adsorption heat exchanger that can handle the above. The second object is to provide an adsorption heat exchanger that does not circulate the condensed water to the evaporator side even if condensation occurs on the case wall surface.

In order to achieve the above object, the present invention employs the following technical means. That is, in the first aspect of the invention, the casing (3) in which the heat exchange medium and the adsorbed medium circulate, and a plurality of heat medium tubes (in the casing (3)) through which the heat exchange medium circulates ( 21) and an adsorbent filling layer formed between the heat medium pipe (21) and an adsorbent packed bed (22) formed by adsorbing or desorbing a medium to be adsorbed, and the heat medium pipe (21). An adsorption heat exchanger (25) having an adsorbed medium passage (25) that is formed in the layer (22) in parallel with the axial direction of the heat medium pipe (21) and supplies the adsorbed medium to the adsorbent packed bed (22). In 1)
The interior of the casing (3) constitutes a first region (A1) where the adsorbent packed layer (22) is formed and a second region (A2) where the adsorbent packed layer (22) is not formed. In addition, the heat of the heat medium pipe (21) is transmitted to the inner surface (31a) of the casing (3) in the second region (A2) and to the adsorbed medium exposed surface (31a) exposed to the adsorbed medium. The heat transfer member (33) is provided in the second region (A2).

  According to the first aspect of the present invention, the heat transfer from the heat medium pipe (21) through the heat transfer member (33) is not covered by the adsorbent packed layer (22) of the casing (3). Since the adsorption medium exposure surface (31a) exposed to the adsorption medium is heated, the adsorption medium can be prevented from condensing on the adsorption medium exposure surface (31a) of the casing (3). Further, the heat transfer member (33) can be realized with a simple structure in which the heat transfer member (33) is fitted to one end side of the heat medium pipe (21) and the inner peripheral surface (31a) of the casing (3).

  In the invention according to claim 2, in the adsorption heat exchanger according to claim 1, the second region (A2) is formed only at one end in the axial direction of the adsorbent packed bed (22). It is characterized by being. According to the second aspect of the present invention, since the portion to which the adsorbed medium can condense is only on one side, the above-described heat transfer member (33) for preventing condensation may be configured only on one side. The adsorption heat exchanger can be configured simply. Thereby, the cost of the adsorption heat exchanger can be suppressed.

  Further, in the invention according to claim 3, in the adsorption heat exchanger according to claim 1 or 2, the medium to be adsorbed to the condenser configured separately from the adsorption heat exchanger is the second region. It flows out of (A2). According to the third aspect of the present invention, the adsorbed medium exposed surface (31a) can be efficiently heated by allowing a heat exchange medium having a high temperature to flow from the side where the heat transfer member (33) is installed. And condensation on the adsorbed medium exposed surface (31a) can be efficiently prevented.

  According to a fourth aspect of the present invention, in the adsorption heat exchanger according to any one of the first to third aspects, the inlet (36) for allowing the adsorbed medium to flow into the second region (A2) and An outflow port (37) through which the adsorbed medium flows out from the second region (A2) is provided in the casing (3) forming the second region (A2).

  Further, in the invention according to claim 5, in the adsorption heat exchanger according to any one of claims 1 to 4, one end of the adsorbed medium passage (25) in the axial direction is in the second region (A2). ) And the other end is closed. These inventions according to claims 4 and 5 also have a structure in which the adsorbed medium can be condensed only on one side, whereby the adsorption heat exchanger can be simply configured to reduce costs. be able to.

  Further, in the invention according to claim 6, in the adsorption heat exchanger according to claim 5, the other end in the axial direction of the adsorbed medium passage (25) is blocked by a part of the adsorbent packed bed (22). The bottom portion (25a) is formed, and the bottom portion thickness (Lb) is the optimum adsorbent filling to be considered when determining the mutual positional relationship between the heat medium pipe (21) and the adsorbed medium passage (25). The thickness is the same as the layer thickness (L). According to the sixth aspect of the present invention, the entire adsorbent packed bed (22) can be formed with an efficient dimensional relationship.

  Further, in the invention according to claim 7, in the adsorption heat exchanger according to any one of claims 1 to 6, the outlet (37) of the adsorbed medium is located at a position on the ground side in the vertical direction. It is characterized by being formed. According to the seventh aspect of the present invention, even when the adsorbed medium is condensed on the adsorbed medium exposed surface (31a) of the casing (3) for some reason, the condensed water is used as the adsorbent packed bed (22 ) Or the reflux side to the evaporator side, it is possible to flow from the outlet (37) of the adsorbed medium arranged on the ground side to the condenser side.

  Moreover, in invention of Claim 8, in the adsorption heat exchanger of Claim 1, the heat-transfer member (33) is formed from the ring-shaped metal plate, The outer peripheral shape is 2nd area | region. It is formed so as to coincide with the shape of the inner peripheral surface (31a) of the casing (3) in (A2), and a part of the heat medium pipe (21) of the heat medium pipe (21) is formed on the heat transfer member (33). ) Is inserted, and a through hole (33a) is formed.

  In the invention according to claim 9, in the adsorption heat exchanger according to claim 1, the heat transfer member (33) is formed of a disk-shaped metal plate, and the outer peripheral shape thereof is the second region. It is formed so as to match the shape of the inner peripheral surface (31a) of the casing (3) in (A2), and the heat transfer member (33) has a through hole (33a) into which the heat medium pipe (21) is inserted. And a plurality of passage holes (33b) for guiding the adsorbed medium flowing into the second region (A2) to the adsorbed medium passage (25) in the heat transfer member (33). It is characterized by being formed.

  According to the invention described in claims 8 and 9, the heat transfer pipe (21) is inserted into the through hole (33a) of the heat transfer member (33), and the heat transfer member (33) is the casing (3). The inner peripheral surface (31a) of the heat transfer member (33), the heat medium pipe (21), and the inner peripheral surface (31a) of the casing (3) are thermally joined by brazing or the like. The heat of the heat medium pipe (21) can be transferred to the adsorption medium exposed surface (31a) which is the inner peripheral surface (31a) of the casing (3).

  The adsorbed medium flowing into the second region (A2) may be guided to the adsorbed medium passage (25) by a large passage hole (33b) at the center of the ring-shaped heat transfer member (33). However, it may be a plurality of small passage holes (33b) opened in the disk-shaped heat transfer member (33). Further, the reference numerals in parentheses described in the claims and each means described above are an example showing the correspondence with the specific means described in the embodiments described later.

  Hereinafter, an adsorption heat exchanger according to an embodiment of the present invention will be described in detail with reference to FIGS. The present adsorption heat exchanger utilizes the effect that the adsorbent contained therein adsorbs the gas-phase adsorbed medium, evaporates the adsorbed medium, and exhibits its refrigerating capacity by its latent heat of vaporization. Therefore, it is suitable for use in an air conditioning apparatus for a vehicle by using it in an adsorption refrigeration apparatus or the like.

  This adsorption heat exchanger includes an adsorption module in a housing. FIG. 1 is an end view of an adsorption module 2 as a premise of the invention, and FIG. 2 is a sectional view taken along line II-II in FIG. As shown in FIG. 1 and FIG. 2, the adsorption module 2 includes a plurality of hot water pipes (heat medium tubes) 21 through which a heat exchange medium (in this embodiment, hot water is used; henceforth, referred to as hot water), and each of them. And an adsorbent packed layer 22 formed so as to be coupled to the outer peripheral surface of the hot water pipe 21.

  Further, in the adsorbent packed bed 22 between the hot water pipes 21, a water vapor passage (adsorbed medium passage) 25 through which water vapor flows is formed. 3 is a partially enlarged view of FIG. 1, and FIG. 4 is a schematic cross-sectional view showing the adsorbent packed layer 22 in FIG. As shown in FIG. 4, the adsorbent packed layer 22 is bonded to the outer peripheral surface of each hot water pipe 21 by filling the adsorbent 24 in powdered, particulate or fibrous metal powder 23 b and sintering it. Is formed.

  In this embodiment, a fibrous metal having excellent thermal conductivity is used as the porous sintered fin (porous heat transfer body) 23, and this fibrous metal is heated and sintered without melting. It is made into the sintered compact. In this embodiment, copper or copper alloy is used as the fibrous metal. The porous sintered fins 23 may be made of, for example, powder or particulate metal.

  Such porous fins 23 form fine pores 23a as shown in FIG. The pores 23a are fine pores suitable for filling the adsorbent 24 having a fine particle diameter. The adsorbent 24 is formed into a large number of fine particles, and is made of, for example, a material such as silica gel or zeolite. A large number of adsorbents 24 are filled in the pores 23 a of the porous fins 23.

  The porous fins 23 are sinter-bonded to the periphery of the hot water pipe 21 made of copper or a copper alloy. And the adsorbent filling layer 22 made of these is formed around the plurality of hot water pipes 21 so that the whole extends in one direction, and in this embodiment, the entire shape is a cylindrical shape. Further, in the adsorbent packed bed 22 between the hot water pipes 21, a water vapor passage 25 through which water vapor flows is arranged.

  The cross-sectional shape of the water vapor passage 25 is a circle in the present embodiment, but may be an ellipse, a rectangle, or the like. In the present embodiment, the water vapor passage 25 is disposed in a region surrounded by the six hot water pipes 21, but is disposed in a region surrounded by a plurality of other hot water pipes 21. May be.

  The water vapor passage 25 plays a role of promptly penetrating the inside of the adsorbent packed bed 22 around the hot water pipe 21 through water vapor from the evaporator during adsorption. Further, at the time of desorption, the water vapor discharged from the adsorbent packed bed 22 around the hot water pipe 21 plays a role of promptly leading to the condenser through the water vapor passage 25.

  The thickness of the adsorbent packed layer 22 corresponds to the thickness L (see FIG. 4) of the porous sintered fin 23 that is sintered and bonded on the outer peripheral surface of the hot water pipe 21. In setting the thickness L of the adsorbent packed bed 22, as shown in FIGS. 3 and 4, the penetration depth r 2 toward the hot water pipe 21 and the distance from the hot water pipe 21 (hereinafter referred to as the heat transfer distance). ) It is preferable to arrange the water vapor passage 25 between the hot water pipes 21 so that r1 is substantially equal.

  The penetration depth r2 is the distance from the inner peripheral surface of the water vapor passage 25 to the outer peripheral surface of the hot water pipe 21. Thus, by disposing the water vapor passage 25 between the hot water pipes 21 so that the penetration depth r2 related to the adsorption and desorption rate is substantially equal to the heat transfer distance r1, the diffusion resistance of water vapor is small. In addition, it is possible to provide a high-performance adsorption heat exchanger that has excellent heat transfer characteristics and can reduce the time required for adsorption and desorption. This is the optimum adsorbent packed bed thickness L.

  Next, the adsorption heat exchanger 1 in which the adsorption module 2 described above is housed in the case 3 and integrally molded will be described. 5 is an external side view showing the adsorption heat exchanger 1 in one embodiment of the present invention, FIG. 6 is a sectional view taken along line VI-VI in FIG. 5, and FIG. 7 is a sectional view taken along line VII-VII in FIG. FIG. The adsorption heat exchanger 1 generally has a structure in which the adsorption module 2 is housed in a case main body 31, partition plates 32 are fitted to both end faces, and tanks 34 and 35 are assembled to the both end faces and integrally joined.

  The case main body 31 is formed in a cylindrical shape, and the columnar suction module 2 is accommodated therein. Further, both end openings of the case main body 31 are formed so as to be able to be sealed by the partition plate 32. And the inside of the case main body 31 comprises 1st area | region A1 in which the adsorbent filling layer 22 is formed, and 2nd area | region A2 in which the adsorbent filling layer 22 is not formed.

  In addition, the partition plate 32 to be sealed is provided with a plurality of hot water pipe holes 32a corresponding to the positions of the hot water pipes 21 so that the plurality of hot water pipes 21 projecting from the adsorption module 2 to the both end surfaces pass therethrough. (See FIG. 7). The case body 31, the partition plate 32, the hot water pipe hole 32a of the partition plate 32, and the hot water pipe 21 are airtightly joined by brazing or the like.

  By sealing the case main body 31 with the partition plate 32 in this way, the inside can be kept in a vacuum. This prevents other gases from entering the internal sealed space formed by the case body 31 and the partition plate 32 in addition to water vapor as an adsorbed medium.

  5 and 7, a water vapor inlet (inlet) 36 for introducing water vapor from an evaporator (not shown) to the main adsorption heat exchanger 1 at the time of adsorption is provided on the upper side near the left end of the case body 31. Yes. Further, a water vapor outlet (outlet) 37 for deriving water vapor from the adsorption heat exchanger 1 to a condenser (not shown) at the time of desorption is provided below the left end of the case body 31.

  During the adsorption, the water vapor is distributed from the evaporator side to the water vapor passage 25 of the adsorption module 2 through the water vapor inlet 36. The water vapor distributed to the water vapor passage 25 penetrates into the adsorbent packed bed 22. 5 and 7, the left tank 35 is provided with a hot water inlet 38 that guides hot water as a heat exchange medium at the time of desorption, and the right tank 34 has a hot water outlet 39 that guides the hot water. Is provided.

  The hot water flows into the hot water inlet 38 of the tank 35 and is distributed to a large number of hot water pipes 21 and heats the hot water as it flows through the adsorbent packed bed 22 to the right. Then, the hot water after heat exchange with each hot water pipe 21 gathers in the tank 34 and flows out from the hot water outlet 39. At the time of desorption, water vapor is discharged from the heated adsorbent packed bed 22, and the discharged water vapor is led out from each water vapor passage 25 to the condenser side through the water vapor outlet 37.

  Next, a characteristic structure in the present embodiment will be described. First, the adsorbent packed layer 22 of the adsorption module 2 described above is configured to approach the right side in FIG. 7, and is in close contact with the right partition plate 32, and has no space therebetween. And a space is provided only between the left partition plate 32, and this space is used as a water vapor entrance / exit space. That is, the water vapor inlet 36 and the water vapor outlet 37 are communicated with this space, the water vapor from the evaporator is supplied, and the water vapor after desorption also exits from this space.

  Accordingly, the water vapor passage 25 is also opened only on this space side. That is, the bottom 25a is formed in the portion of the adsorbent packed layer 22 that is in close contact with the right partition plate 32, and the water vapor passage 25 is a bottomed hole. Note that the thickness Lb of the bottom portion 25a is the same as the optimum adsorbent packed layer thickness L described above.

  In the previous space, since the water vapor may condense on the inner peripheral surface of the case 3 exposed to water vapor = the water vapor exposed surface (adsorbed medium exposed surface) 31a, the heat of the hot water pipe 21 in this embodiment. Are provided with two heat transfer plates (heat transfer members) 33 (two in this embodiment).

  As shown in FIG. 6, the heat transfer plate 33 is an annular plate material, and has a hot water pipe hole (through hole) 33 a through which a portion of the hot water pipe 21 near the case body 31 passes, and a center. The part is greatly cut out so as not to disturb the flow of water vapor. This is disposed in the space between the adsorbent filling layer 22 and the left partition plate 32 so as to be inserted into the hot water pipe 21 and in close contact with the inner peripheral surface 31 a of the case body 31. Thereby, since the internal peripheral surface 31a of case 3 exposed to water vapor | steam is heated, condensation of water vapor | steam on this water vapor | steam exposure surface 31a can be prevented.

  The case body 31, the partition plate 32, the heat transfer plate 33, the tanks 34 and 35, and the inlet and outlet pipes 36 to 39 are formed of copper or a copper alloy, and are airtight and integrated by brazing or the like. To be joined. The case 3 and the hot water pipe 21 may have any shape such as a cylindrical shape, an elliptical shape, and a rectangular shape in a radial cross section.

  Next, the outline of the manufacturing method of the adsorption heat exchanger 1 mentioned above is demonstrated. First, the hot water pipe 21 is inserted into one partition plate 32 and the case main body 31 is set on the partition plate 32. The steam inlet / outlet pipes 36 and 37 may be assembled later, but are assembled to the case body 31 first.

  Next, after setting a jig (rod) for forming the water vapor passage 25 in the case body 31, the gap is filled with mixed powder in which fibrous copper powder and adsorbent 24 are mixed. . And after pressing this mixed powder with a jig | tool, the jig | tool for forming the water vapor path | route 25 is gently wiped off, and the hole space of the water vapor | steam path | route 25 is ensured.

  Next, the heat transfer plate 33 and the partition plate 32 on the other end side are inserted into the hot water pipe 21 to assemble the central part of the heat exchanger, and the tanks 34 and 35 are set above and below the central part to set the main heat. It becomes the assembly of the exchanger. The heat transfer plate 33 and the partition plate 32 into which the hot water pipe 21 is inserted are fixed by, for example, expanding the hot water pipe 21 (opening the mouth).

  Further, the hot water outlet / inlet pipes 38 and 39 may be assembled later, but are previously assembled in the tanks 34 and 35. Finally, the assembly is placed in a furnace to sinter the adsorbent packed layer 22 and the components are brazed together to complete the heat exchanger. The above assembly method is an example, and the present invention is not limited to this.

  Next, the features and effects of this embodiment will be described. First, the inside of the case 3 constitutes a first area A1 where the adsorbent filling layer 22 is formed and a second area A2 where the adsorbent filling layer 22 is not formed. The case of the second area A2 A heat transfer plate 33 is provided in the second region A2 for transferring heat of the hot water pipe 21 to the water vapor exposed surface 31a that is exposed to water vapor on the inner peripheral surface 31a.

  According to this, since the water vapor exposure surface 31a exposed to the water vapor without being covered by the adsorbent filling layer 22 of the case 3 is heated by the heat transfer from the hot water pipe 21 through the heat transfer plate 33, the water vapor is Condensation on the water vapor exposed surface 31a of the case 3 can be prevented. Further, the heat transfer plate 33 can be realized with a simple structure in which the heat transfer plate 33 is fitted to one end side of the hot water pipe 21 and the inner peripheral surface 31 a of the case 3.

  Further, the second region A2 is formed only at one end of the adsorbent packed layer 22 in the axial direction. According to this, since the portion where water vapor can condense is only on one side, the heat transfer plate 33 for preventing the above-mentioned condensation only needs to be configured on one side, and the adsorption heat exchanger is simply configured. Can do. Thereby, the cost of the adsorption heat exchanger can be suppressed.

  Moreover, the water vapor | steam to the condenser comprised as a different body from the adsorption heat exchanger flows out out of 2nd area | region A2. According to this, by allowing a heat exchange medium having a high temperature to flow from the side where the heat transfer plate 33 is installed, the water vapor exposed surface 31a can be efficiently heated, and condensation on the water vapor exposed surface 31a can be efficiently prevented. can do.

  In addition, a water vapor inlet 36 through which water vapor flows into the second region A2 and a water vapor outlet 37 through which water vapor flows out from the second region A2 are provided in the case 3 forming the second region A2. In addition, one end in the axial direction of the adsorbed medium passage 25 is open to the second region A2, and the other end is closed. These are also structures for allowing only one side of the water vapor to condense. With these, the adsorption heat exchanger can be simply configured and the cost can be reduced.

  The other end in the axial direction of the water vapor passage 25 is closed by a part of the adsorbent filling layer 22 to form a bottom portion 25a, and the bottom thickness Lb is determined between the hot water pipe 21 and the water vapor passage 25. The thickness is the same as the optimum adsorbent packed layer thickness L to be considered when determining the positional relationship. According to this, the entire adsorbent packed bed 22 can be formed with an efficient dimensional relationship.

  Moreover, the water vapor outlet 37 is formed at a position on the ground side in the vertical direction. According to this, even when the water vapor is condensed on the water vapor exposed surface 31a of the case 3 for some reason, the water vapor disposed on the ground side is not recirculated to the adsorbent packed bed 22 or the evaporator side. It can flow from the outlet 37 to the condenser side.

  The heat transfer plate 33 is formed of a ring-shaped metal plate, and the outer peripheral shape thereof is formed so as to coincide with the shape of the inner peripheral surface 31a of the case 3 in the second region A2. A hot water pipe hole 33 a into which a part of the hot water pipe 21 of the hot water pipe 21 is inserted is formed in the plate 33.

  According to this, the hot water pipe 21 is inserted into the hot water pipe hole 33a of the heat transfer plate 33, and the heat transfer plate 33 is fitted to the inner peripheral surface 31a of the case 3, and the heat transfer plate 33, the hot water pipe 21 and Since the inner peripheral surface 31a of the case 3 is thermally joined by brazing or the like, the heat of the hot water pipe 21 can be transferred to the water vapor exposed surface 31a which is the inner peripheral surface 31a of the case 3.

(Other embodiments)
The present invention is not limited to the above-described embodiments, and can be modified or expanded as follows. For example, FIG. 8 is a cross-sectional view of another embodiment corresponding to FIG. The heat transfer plate 33 is formed of a disk-shaped metal plate, and the outer peripheral shape thereof is formed so as to coincide with the shape of the inner peripheral surface 31a of the case 3 in the second region A2. Further, the heat transfer plate 33 is formed with a hot water pipe hole 33a into which the hot water pipe 21 is inserted. Further, the heat transfer plate 33 guides the water vapor flowing into the second region A2 to the water vapor passage 25. For this purpose, a plurality of water vapor passage holes 33b are formed.

  The water vapor passage hole (passage hole) 33b provided in the heat transfer plate 33 may be one large water vapor passage hole 33b as shown in FIG. 6 (as a result, the heat transfer plate 33 becomes a ring-shaped plate). As shown in FIG. 8, the disk-shaped heat transfer plate 33 may be a plurality of small water vapor passage holes 33 b formed at positions corresponding to the water vapor passage 25. Moreover, in the above-mentioned embodiment, although copper is used for the hot water pipe 21 and the porous fin 23, you may comprise with stainless steel, aluminum, etc.

It is an end view of the adsorption | suction module 2 used as the premise of invention. It is II-II sectional drawing in FIG. FIG. 2 is a partially enlarged view of FIG. FIG. 4 is a schematic cross-sectional view showing an adsorbent packed layer 22 in FIG. 3. It is an appearance side view showing adsorption heat exchanger 1 in one embodiment of the present invention. It is VI-VI sectional drawing in FIG. It is VII-VII sectional drawing in FIG. It is sectional drawing in other embodiment corresponded to FIG.

Explanation of symbols

1 ... Adsorption heat exchanger 3 ... Case (casing)
21 ... Hot water pipe (heat medium pipe)
22 ... Adsorbent packed bed 25 ... Water vapor passage (adsorbed medium passage)
25a ... Bottom 31a ... Water vapor exposed surface (inner peripheral surface, adsorbed medium exposed surface)
33 ... Heat transfer plate (heat transfer member)
33a ... Hot water pipe hole (through hole)
33b ... Water vapor passage hole (passage hole)
36 ... Water vapor inlet (inlet)
37 ... Steam outlet (outlet)
A1 ... first region A2 ... second region L ... optimum adsorbent packed layer thickness Lb ... bottom thickness

Claims (9)

A casing (3) in which the heat exchange medium and the adsorbed medium flow,
A plurality of heat medium tubes (21) disposed in the casing (3) and through which the heat exchange medium flows;
An adsorbent packed bed (22) formed to be bonded to the outer peripheral surface of the heat medium pipe (21) and adsorbing or desorbing the adsorbed medium;
The adsorbent packed bed (22) between the heat medium pipes (21) is formed in parallel with the axial direction of the heat medium pipe (21), and the adsorbed medium is put on the adsorbent packed bed (22). In the adsorption heat exchanger (1) having the adsorbed medium passage (25) to be supplied,
The inside of the casing (3) includes a first region (A1) where the adsorbent packed layer (22) is formed and a second region (A2) where the adsorbent packed layer (22) is not formed. Configured
Heat of the heat medium pipe (21) on the inner surface (31a) of the casing (3) in the second region (A2) and exposed to the adsorbed medium exposed surface (31a) of the adsorbed medium. A heat transfer member (33) for transmitting the heat is provided in the second region (A2).   The adsorption heat exchanger according to claim 1, wherein the second region (A2) is formed only at one end of the adsorbent packed bed (22) in the axial direction.   The adsorption heat exchanger according to claim 1 or 2, wherein the adsorbed medium to the condenser configured separately from the adsorption heat exchanger flows out of the second region (A2). .   An inlet (36) for allowing the adsorbed medium to flow into the second area (A2) and an outlet (37) for allowing the adsorbed medium to flow out from the second area (A2) include the second area. The adsorption heat exchanger according to any one of claims 1 to 3, wherein the adsorption heat exchanger is provided in the casing (3) forming (A2).   One end of the adsorbed medium passage (25) in the axial direction is open to the second area (A2), and the other end is closed. The adsorption heat exchanger according to the item.   The other end of the adsorbed medium passage (25) in the axial direction is closed by a part of the adsorbent packed bed (22) to form a bottom (25a), and the bottom thickness (Lb) is: The thickness is the same as the optimum adsorbent packed layer thickness (L) to be considered when determining the mutual positional relationship between the heat medium pipe (21) and the adsorbed medium passage (25). Item 6. The adsorption heat exchanger according to Item 5.   The adsorption heat exchanger according to any one of claims 1 to 6, wherein the outlet (37) of the adsorbed medium is formed at a position on the ground side in the vertical direction. The heat transfer member (33) is formed of a ring-shaped metal plate, and the outer peripheral shape thereof coincides with the shape of the inner peripheral surface (31a) of the casing (3) in the second region (A2). Is formed to
The through hole (33a) into which a part of the heat medium pipe (21) of the heat medium pipe (21) is inserted is formed in the heat transfer member (33). Adsorption heat exchanger. The heat transfer member (33) is formed of a disk-shaped metal plate, and its outer peripheral shape matches the shape of the inner peripheral surface (31a) of the casing (3) in the second region (A2). Is formed to
The heat transfer member (33) has a through hole (33a) into which the heat medium pipe (21) is inserted,
Further, the heat transfer member (33) is formed with a plurality of passage holes (33b) for guiding the adsorbed medium flowing into the second region (A2) to the adsorbed medium passage (25). The adsorption heat exchanger according to claim 1, wherein

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