WO2015099063A1 - Adsorption-type heat exchanger - Google Patents

Abstract

[Problem] To increase the amount of an adsorbent material without greatly increasing the size of a heat exchanger. [Solution] An adsorption-type heat exchange configured such that an adsorbent material (200) is heated/cooled by the heating/cooling of heat transfer tubes (130), thereby enabling water (the adsorbate) to be released from/adsorbed by the adsorbent material (200). A plurality of the heat transfer tubes (130) are provided with intervals (L1) therebetween, and the interval (L1) between one heat transfer tube (130) and another heat transfer tube (130) is filled with the adsorbent material (200). Thus, the amount of the adsorbent material (200) in the adsorption-type heat exchanger is greater than when an adsorbent material is supported by fins provided on the heat transfer tubes (130).

Description

Adsorption heat exchanger

The present invention relates to an adsorption heat exchanger.

Patent Document 1 discloses a humidity control apparatus that adjusts the humidity of air using an adsorbent.

JP 2005-111425 A

The humidity control apparatus shown in Patent Document 1 has an adsorption heat exchanger having a configuration in which a plurality of heat transfer tubes arranged in parallel are provided through a plurality of fins arranged at intervals. Yes.
In this adsorption heat exchanger, the adsorbate such as water is heated by cooling / adsorbing the adsorbent (zeolite particles) supported on the surfaces of the heat transfer tubes and fins by the heat exchange medium flowing through the heat transfer tubes. The adsorbent is desorbed / adsorbed.

Here, when trying to improve the adsorption performance of the humidity controller by increasing the amount of adsorbent, the surface area of the fin is limited, so increasing the number of fins can increase the amount of adsorbent Although it is conceivable, when the number of fins is increased, the heat exchanger becomes large.

Therefore, it is required to increase the amount of adsorbent without increasing the size of the heat exchanger.

The present invention relates to an adsorption heat exchanger configured to heat / cool an adsorbent by heating / cooling a heat transfer tube to desorb / adsorb adsorbate on the adsorbent.
A plurality of the heat transfer tubes are provided with a gap therebetween, and an adsorption heat exchanger having a configuration in which the gap is filled with the adsorbent is provided.

According to the present invention, since the adsorbent is directly filled in the gap between the heat transfer tube and the heat transfer tube, the amount of the adsorbent can be increased as compared with the case where fins are provided.
Therefore, since the amount of the adsorbent can be increased without increasing the fins, the amount of the adsorbent can be increased without increasing the size of the heat exchanger, and the adsorption performance of the humidity control apparatus can be improved.

It is a figure explaining the compressor concerning a 1st embodiment. It is a figure explaining the adsorption type heat exchanger concerning a 1st embodiment. It is a figure explaining the adsorbent concerning 1st Embodiment. It is a figure explaining the adsorbent and the accommodating member which concern on other embodiment. It is a figure explaining the adsorbent and the accommodation member which concern on 2nd Embodiment.

Hereinafter, a case where the embodiment of the present invention is applied to a compressor used when operating a vehicle air conditioner will be described as an example.

[First Embodiment]
Drawing 1 is a figure explaining compressor 1 which adopted adsorption type heat exchanger 100 concerning a 1st embodiment. In addition, in FIG. 1, the shape of the compressor 1 is typically shown for convenience of explanation.

The compressor 1 uses the force (adsorptive power) that the adsorbent of the adsorption heat exchanger 100 adsorbs moisture (adsorbate) in the air, so It is a device that changes the pressure, and is used, for example, in a vehicle air conditioner.

In this compressor 1, a supply pipe 12 connected to an evaporator (evaporator) (not shown) is connected to one end side of a cylindrical container 10 and connected to a condenser (condenser) (not shown) on the other end side. The discharged exhaust pipe 14 is connected.
In the compressor 1, the fluid supplied from the evaporator side via the supply pipe 12 passes through the container 10 and is then supplied to the condenser side via the discharge pipe 14.
Then, when the fluid passes through the container 10, the adsorption heat exchanger 100 disposed in the container 10 adsorbs the adsorbate contained in the fluid or is adsorbed by the adsorbent of the adsorption heat exchanger 100. By releasing the adsorbate, the pressure in the container 10 is reduced or increased.

Hereinafter, a specific configuration of the adsorption heat exchanger 100 will be described.
FIG. 2 is a diagram for explaining the adsorption heat exchanger 100 according to the first embodiment, (a) is a plan view of the adsorption heat exchanger 100, and (b) is a diagram in (a). It is an enlarged view of an AA cross section. FIG. 3 is an enlarged view of the region P in FIG.
2 and 3, the shapes of the adsorption heat exchanger 100 and the adsorbent 200 are schematically shown for convenience of explanation.

The adsorption heat exchanger 100 has a basic configuration in which an adsorbent 200 is filled in a gap L1 between the heat transfer tube 130 and the heat transfer tube 130 arranged in parallel with each other between the branching tank 120 and the merging tank 140. Yes.

In the adsorption heat exchanger 100, a supply pipe 110 to which a heat exchange medium B (hot water or cold water) is supplied and one end of a plurality of heat transfer pipes 130 are connected via a branch tank 120. The heat exchange medium B supplied via 110 is branched by the branch tank 120 and supplied to each heat transfer tube 130.
Further, one end of the plurality of heat transfer tubes 130 and the discharge tube 150 are connected via the merge tank 140, and the heat exchange medium B flowing through each heat transfer tube 130 passes through the merge tank 140. , And is discharged from the discharge pipe 150.

The heat transfer tube 130 is a cylindrical member made of aluminum or copper having a high thermal conductivity, and fills the gap L1 between the adjacent heat transfer tube 130 with the high / low temperature heat of the heat exchange medium B flowing inside. A plurality of adsorbents 200 are provided for transmission to the adsorbent 200.

As shown in FIG. 1, the adsorption heat exchanger 100 is arranged in the container 10 in a direction in which the plurality of heat transfer tubes 130 are substantially orthogonal to the longitudinal direction of the container 10, and the plurality of heat transfer tubes 130 are , And are arranged in a direction crossing the moving direction of the fluid passing through the container 10.

In the adsorption heat exchanger 100, the gap L1 between the heat transfer tube 130 and the heat transfer tube 130 is filled by heating / cooling the heat transfer tube 130 with a high temperature / low temperature heat exchange medium flowing through the heat transfer tube 130. When the adsorbent 200 is heated / cooled, the adsorbate contained in the fluid passing through the container 10 is adsorbed, or the adsorbate adsorbed by the adsorbent 200 of the adsorption heat exchanger 100 is released into the fluid. To do.

Here, for example, when the fluid passing through the container 10 of the compressor 1 is a gas containing moisture (adsorbate), when the adsorbent 200 is cooled, the moisture in the gas is adsorbed by the adsorbent 200. When the pressure in the container 10 decreases and the adsorbent 200 is heated, the moisture adsorbed on the adsorbent 200 is released, and the pressure in the container 10 increases.

Hereinafter, the adsorbent 200 will be described.
As shown in FIG. 2B and FIG. 3, the adsorbent 200 is provided in a range indicated by an imaginary line S including each heat transfer tube 130 and the gap L1 between the heat transfer tubes 130.

In the present embodiment, a mixed material obtained by mixing the particulate adsorbent 210 and the fibrous adsorbent 220 is used as the adsorbent 200.

The particulate adsorbent 210 is activated carbon particles having many fine pores formed on the surface.
In the present embodiment, particulate activated carbon having a specific surface area in the range of 1000 to 3200 m ² / g and thermal conductivity in the range of 0.1 to 1.2 W / m · K is used as the particulate adsorbent. It is adopted as 210.

The fibrous adsorbent 220 is a fibrous adsorbent made of activated carbon, and in this embodiment, the average particle diameter is about 2 to 50 μm, and the average length is 1 / L of the gap L1 between the heat transfer tube 130 and the heat transfer tube 130. A material having a length of 2 or more is used as the fibrous adsorbent 220.
Note that the thermal conductivity of the fibrous adsorbent 220 is substantially the same as that of the particulate adsorbent 210.

Here, since the particulate adsorbent 210 has a small contact area with another adjacent particulate adsorbent 210, the adsorbent 200 filled in the gap L1 between the heat transfer tubes 130 and 130 is only the particulate adsorbent 210. The heat transfer to the particulate adsorbent 210 at a position away from the heat transfer tube 130 becomes worse.
In the present embodiment, the particulate adsorbent 210 is mixed with a fibrous adsorbent 220 serving as a heat transfer material to form the adsorbent 200, and the particulate adsorbent 210 is located away from the heat transfer tube 130. However, heat can be transmitted through the fibrous adsorbent 220.
Thereby, when the heat transfer tube 130 is heated / cooled, even the adsorbent 200 located at a position away from the heat transfer tube 130 can be heated / cooled with good responsiveness, so that the adsorbent 200 including the particulate adsorbent 210 can be obtained. The desorption / adsorption of adsorbate can be appropriately controlled.

As shown in FIG. 3, the density of the fibrous adsorbent 220 in the vicinity region (first region Q1) of the heat transfer tube 130 is intermediate between the adjacent heat transfer tube 130 and the heat transfer tube 130 (second region Q2). The density of the fibrous adsorbent 220 is increased as the heat transfer tube 130 is approached. This is to increase the chance of contact between the fibrous adsorbent 220 that plays the role of a heat transfer material and the heat transfer tube 130.

Here, in the fibrous adsorbent 220, one end side in the longitudinal direction is in contact with the surface of the heat transfer tube 130, and the other end side is located in a region (second region Q2) between the adjacent heat transfer tubes 130 and 130. It is preferable that it is provided.
The fibrous adsorbent 220 is arranged so as to extend in the radial direction of the heat transfer tube 130, and is preferably arranged radially in the circumferential direction around the heat transfer tube 130.

This is because when the fibrous adsorbent 220 is provided in this way, the high / low temperature heat of the heat transfer tube 130 can be reliably transmitted to the particulate adsorbent 210 at a position distant from the heat transfer tube 130. That is, when the heat transfer tube 130 is heated / cooled, the fibrous adsorbent 220 in contact with the surface of the heat transfer tube 130 is first heated / cooled, and then the heated / cooled fibrous adsorbent 220 is transferred to the heat transfer tube 130. Since the particulate adsorbent 210 that is in contact is heated / cooled, the particulate adsorbent 210 that is located away from the heat transfer tube 130 is fibrous as long as it is in contact with the fibrous adsorbent 220. Heat is transmitted through the adsorbent 220 to be heated / cooled. Therefore, even the particulate adsorbent 210 located away from the heat transfer tube 130 can be heated / cooled with good responsiveness.

As described above, the fibrous adsorbent 220 has a length that is ½ or more of the gap L1 between the adjacent heat transfer tubes 130, 130. Therefore, the fibrous adsorbent 220 is complicated. Even when it is arranged in the gap L1 in a bent state, the other end side of the fibrous adsorbent 220 can reach the intermediate region (second region Q2) between the adjacent heat transfer tubes 130, 130. It has become. Therefore, the high temperature / low temperature heat of the heat transfer tube 130 can be more reliably transferred to the particulate adsorbent 210 at a position away from the heat transfer tube 130.

Further, the length of the fibrous adsorbent 220 is set to be 1/2 or more of the gap L1 between the adjacent heat transfer tubes 130 and 130, thereby extending from one of the adjacent heat transfer tubes 130 and 130. The fibrous adsorbent 220 and the fibrous adsorbent 220 extending from the other are provided so as to be entangled in an intermediate region (second region Q2) between the heat transfer tubes 130 and 130.
For this reason, the fibrous adsorbent 220 serving as a heat transfer material allows the high / low temperature heat of the heat transfer tube 130 to be spread over substantially the entire intermediate region (second region Q2) between the heat transfer tubes 130 and 130. You can communicate.

Next, an example of a method for mixing the particulate adsorbent 210 and the fibrous adsorbent 220 and filling the gap L1 will be described.

First, the fibrous adsorbent 220 is filled in the gap L1 between the adjacent heat transfer tubes 130 and 130.
Here, the holding of the fibrous adsorbent 220 between the heat transfer tubes 130 and 130 is (a) provided so that the fibrous adsorbent 220 is entangled with the outer periphery of the heat transfer tube 130, and (b) on the outer periphery of the heat transfer tube 130. It can be carried out by any method that can hold the fibrous adsorbent 220 between the heat transfer tubes 130, 130, such as bonding to the applied adhesive.

Subsequently, the particulate adsorbent 210 is filled in the gap L1 between the heat transfer tubes 130 and 130 in which the fibrous adsorbent 220 is disposed.
Here, since the particulate adsorbent 210 has a large specific surface area, simply spraying the particulate adsorbent 210 on the fibrous adsorbent 220 is sufficient for the gap L1 between the heat transfer tubes 130 and 130. The amount of the particulate adsorbent 210 cannot be filled.
Therefore, after the particulate adsorbent 210 is dispersed on the fibrous adsorbent 220, vibration is applied by so-called tapping so that the particulate adsorbent 210 enters between the entangled fibrous adsorbents 220. preferable.

Furthermore, since the particulate adsorbent 210 having a large specific surface area has a large bulk density, the gap between the particles of the particulate adsorbent 210 is clogged by tapping and applying vibration to the particulate adsorbent 210. More particulate adsorbents 210 can be closely packed between the fibrous adsorbents 220.

In order to prevent the particulate adsorbent 210 from dropping off, a sheet made of a gas permeable material having an opening smaller than the particle diameter of the particulate adsorbent 210 is used as the adsorption heat exchanger 100. The adsorbent 200, which is a mixture of the particulate adsorbent 210 and the fibrous adsorbent 220, is housed inside the sheet so as to surround the heat transfer tubes 130 arranged in parallel. May be arranged in the gap L1 between the heat transfer tubes 130 and 130 and around the heat transfer tube 130.

Thus, when the adsorbent 200, which is a mixture of the particulate adsorbent 210 and the fibrous adsorbent 220, is filled in the gap L1 of the heat transfer tube 130, the gap L1 of the heat transfer tubes 130 and 130 and the heat transfer tube 130 are filled. Thus, the adsorption heat exchanger 100 in which the adsorbent 200 is disposed around can be obtained.

Further, by applying pressure to the mixed material of the particulate adsorbent 210 and the fibrous adsorbent 220 such that the specific surface area of the particulate adsorbent 210 is not greatly impaired, the mixed material is molded into a predetermined shape, and molded You may make it fill the gap | interval L1 of the heat exchanger tube 130 with the mixed material.

As described above, in the first embodiment,
In an adsorption heat exchanger configured to heat / cool the adsorbent 200 by heating / cooling the heat transfer tube 130 and desorb / adsorb moisture (adsorbate) on the adsorbent 200, the heat transfer tube 130 is A plurality of gaps L1 are provided, and the adsorbent 200 is filled in the gaps L1.

If comprised in this way, since the adsorbent 200 is directly filled in the gap L1 between the heat transfer tube 130 and the heat transfer tube 130, the amount of the adsorbent 200 can be increased as compared with the case where fins are provided.
Therefore, since the amount of the adsorbent 200 can be increased without increasing the number of fins, the amount of the adsorbent 200 can be increased without increasing the size of the adsorption heat exchanger 100.

Furthermore, the adsorbent 200 is configured to be a mixture of a particulate adsorbent 210 (particulate adsorbent) and a fibrous adsorbent 220 (fibrous adsorbent).

Since the particulate adsorbent 210 has a small contact area with another adjacent particulate adsorbent 210, if the adsorbent 200 filled in the gap L1 of the heat transfer tube 130 is only the particulate adsorbent 210, the heat transfer tube 130 The transfer of heat to the particulate adsorbent 210 at a distant position becomes worse. As a result, when the heat transfer tube 130 is heated / cooled, it becomes difficult to heat / cool the adsorbent 200 with high responsiveness, and thus it becomes difficult to control the desorption / adsorption of moisture (adsorbate) to the adsorbent 200. .
When configured as described above, the fibrous adsorbent 220 also serves as a heat transfer material, so that heat can be transferred to the particulate adsorbent 210 located away from the heat transfer tube 130. Therefore, when the heat transfer tube 130 is heated / cooled, even the adsorbent 200 located at a position away from the heat transfer tube 130 can be heated / cooled with good responsiveness, so that moisture (adsorbate) is removed from the adsorbent 200. Separation / adsorption can be controlled appropriately.

The density of the fibrous adsorbent 220 in the mixed material filled in the gap L1 is set to be higher in the first region Q1 of the heat transfer tube 130 (in the vicinity of the heat transfer tube 130).

If comprised in this way, since the contact opportunity with the fibrous adsorption material 220 which also plays the role as the heat exchanger tube 130 (heat exchanger material) and the heat exchanger tube 130 increases, the heat of the heat exchanger tube 130 is the position away from the heat exchanger tube 130. Can be reliably transmitted by the particulate adsorbent 210.

The fibrous adsorbent 220 was configured to include at least activated carbon fibers.

With such a configuration, the activated carbon fiber serves as a heat medium (heat transfer tube), so that the heat of the heat transfer tube 130 can be reliably transferred to the particulate adsorbent 210 located away from the heat transfer tube 130. In addition, since the activated carbon fiber has a higher thermal conductivity than the polymer material or zeolite, the heat from the heat transfer tube 130 can be transferred to every corner of the adsorbent 200 with good responsiveness.

The particulate adsorbent 210 was made of a carbon material containing at least activated carbon.

With such a configuration, the activated carbon has a higher thermal conductivity than the high-molecular adsorbent and the mineral-based zeolite, so that heat from the heat transfer tube 130 can be quickly transferred to every corner of the adsorbent 200. .
Therefore, desorption / adsorption of moisture (adsorbate) to the adsorbent 200 can be performed more reliably.

Hereinafter, a modified example of the filling method of the adsorbent 200 filled between the heat transfer tubes 130 and 130 will be described.
FIG. 4 is a view for explaining a modification of the filling method of the adsorbent 200 filled between the heat transfer tubes 130 and 130. 4A is a perspective view of the housing member 240 formed of the fibrous adsorbent 220, and FIG. 4B is a diagram illustrating a state in which the housing member 240 is filled in the gap L1 of the heat transfer tube 130. (C) is an enlarged view of a region R in (b).
In addition, in FIG. 4, the shape of the adsorbent 200, the accommodating member 240, and the adsorption heat exchanger 100 is typically shown for convenience of explanation. In addition, the same components as those in the first embodiment described above are denoted by the same reference numerals, and redundant description is omitted.

In a modification of the filling method of the adsorbent 200 filled between the heat transfer tubes 130, 130, the adsorbent 200 in which the particulate adsorbent 210 and the fibrous adsorbent 220 are mixed is contained in the fibrous adsorbent 220. In the state accommodated in the member 240, the gap L <b> 1 between the heat transfer tube 130 and the heat transfer tube 130 is filled.

The accommodating member 240 used in the filling method according to the modification is a bag-like member produced by weaving fibrous activated carbon, and inside thereof, the particulate adsorbent 210 and the fibrous adsorbent 220 which are adsorbents 200 are contained. Are accommodated in a mixed state.
The housing member 240 is formed into a bag shape by filling the adsorbent 200 in the bottomed bag-shaped housing portion 242 and then sealing the opening 246 of the housing portion 242 with a string or the like. Yes.

Here, in the accommodation member 240, one end in the longitudinal direction of the fibrous adsorbent 220 is fixed to the inner wall surface 242A of the accommodation portion 242 by means such as weaving, and the other end is located inside the accommodation portion 242 from the inner wall surface 242A. It is preferable that they are arranged so as to extend.
If comprised in this way, since the heat | fever transmitted from the heat exchanger tube 130 to the accommodating part 242 of the accommodating member 240 can be transmitted to the fibrous adsorbent 220 by which one end was fixed to the accommodating part 242, it fills in the accommodating part 242. Heat can be more reliably transmitted to the particulate adsorbent 210 located at a position away from the inner wall surface 242A of the accommodating portion 242 of the particulate adsorbent 210 through the fibrous adsorbent 220. Because it becomes.

Here, an example of a method for filling the housing member 240 containing the adsorbent 200 between the heat transfer tubes 130 and 130 will be described.

First, as shown in FIG. 4B, after creating a plurality of housing members 240 housing the adsorbent 200 (mixed material of the particulate adsorbent 210 and the fibrous adsorbent 220), the housing member 240 is formed. The gap L1 between the heat transfer tube 130 and the heat transfer tube 130 of the adsorption heat exchanger 100 is sequentially filled without a gap.

Here, the accommodating member 240 can be deformed into an arbitrary shape in a state where the adsorbent 200 is accommodated. Therefore, when filling the accommodating member 240 between the adjacent heat transfer tubes 130, 130, the accommodating member 240 is pushed between the heat transfer tubes 130, 130 while being deformed into a shape along the outer periphery of the heat transfer tube 130. The housing member 240 can be provided in contact with the outer periphery of the heat transfer tube 130.
Thereby, the heat of the heat transfer tube 130 can be reliably transmitted to the housing member 240.

As described above, in the modification, the mixed material of the particulate adsorbent 210 and the fibrous adsorbent 220 is accommodated in the accommodating member 240 formed of the fibrous adsorbent, and between the heat transfer tubes 130 and 130. It was set as the structure filled with.

In this way, the gap L1 between the heat transfer tube 130 and the heat transfer tube 130 can be easily filled with the particulate adsorbent 210 and the fibrous adsorbent 220, so that the adsorption heat exchanger 100 can be easily assembled.
Further, by accommodating the adsorbent 200 in the accommodating member 240, the heat transferred from the heat transfer tube 130 to the accommodating member 240 can be transmitted to the entire particulate adsorbent 210 and the fibrous adsorbent 220 in the accommodating member 240. it can.
Therefore, when the heat transfer tube 130 is heated / cooled, the adsorbent 200 can be reliably heated / cooled, so that desorption / adsorption of water (adsorbate) to the adsorbent 200 can be appropriately controlled.

Further, since the housing member 240 is formed by weaving the fibrous adsorbent 220, the fiber density on the surface of the housing member 240 that is a contact surface with the heat transfer tube 130 is higher than the density in the housing member 240. ing.
For this reason, when the accommodation member 240 is filled in the gap L1 of the heat transfer tube 130, the surface of the accommodation member 240 comes into close contact with the heat transfer tube 130, so that the heat of the heat transfer tube 130 is absorbed by the particulate adsorbent 210 in the accommodation member 240 and It can be reliably transmitted to the fibrous adsorbent 220.

As shown in FIG. 4C, a plurality of protrusions 132 that protrude outward in the radial direction of the heat transfer tube 130 are provided along the longitudinal direction of the heat transfer tube 130 so that positioning can be performed when the housing member 240 is filled. You may do it.
In this way, the accommodating member 240 can be easily filled into a predetermined position of the gap L1 of the heat transfer tube 130.

As described above, the mixed material of the particulate adsorbent 210 and the fibrous adsorbent 220 is filled in the gap L1 while being accommodated in the accommodating member 240 formed of the fibrous adsorbent 220.

In the above-described modification, the case where the housing member 240 is made by weaving fibrous activated carbon is illustrated. However, the housing member 240 is formed by entwining a fibrous material made of activated carbon like a nonwoven fabric. You may make it do.
By doing in this way, the same effect as described above can be obtained.

In the first embodiment described above, the case where the adsorbent 200 (mixed material of the particulate adsorbent 210 and the fibrous adsorbent 220) is activated carbon, but the thermal conductivity and adsorption performance equivalent to activated carbon are exemplified. Any material that can be used can be used instead of activated carbon.
Examples of such materials include synthetic adsorbents (polymer adsorbents) such as charcoal, graphite, silica gel, activated alumina, activated bauxite, and synthetic silica gel, polymer adsorbents, and combinations of these adsorbents. Also suitable materials can be used.

Also with this configuration, the same effect as in the case of the first embodiment described above can be obtained.

[Second Embodiment]
In the first embodiment described above, the adsorbent 200 filled in the gap L1 between the heat transfer tube 130 and the heat transfer tube 130 in the adsorption heat exchanger 100 is a mixture of the particulate adsorbent 210 and the fibrous adsorbent 220. Although the case of the mixed material has been exemplified, the mixed material 200A of the particulate adsorbent 210A and the fibrous heat transfer promoting member 220A may be filled in the gap L1 between the heat transfer tubes 130 and 130.

Hereinafter, the mixed material 200A will be described.
FIG. 5 is a diagram illustrating an adsorption heat exchanger 100A according to the second embodiment, and FIG. 5A is a plan view of the adsorption heat exchanger 100A according to the second embodiment. ) Is an enlarged view of an AA cross section in (a). (C) is an enlarged view of the region P in (a).
In the following description, the description of the parts common to the first embodiment is omitted.

In the adsorption heat exchanger 100A shown in FIG. 5, as in the case of the adsorption heat exchanger 100 described above, the mixed material 200A is filled between the heat transfer tubes 130 and 130 arranged at intervals in the width direction. The mixed material 200A is provided in a range indicated by an imaginary line S including the heat transfer tubes 130 and the gap L1 between the heat transfer tubes 130.

In the second embodiment, a mixed material 200A in which a fibrous heat transfer promoting member 220A is mixed with the particulate adsorbent 210A is used as the adsorbent.

The particulate adsorbent 210A is a polymer-based adsorbent (sorbent), in which a polymer-based material having a functional group having a high affinity for water is formed into particles, and the surface has many fine particles. A spherical cross-linked polymer material having a porous structure in which pores are formed is employed.
Examples of such a material include Diaion (registered trademark) and Sepa beads (registered trademark) manufactured by Mitsubishi Chemical Corporation.

Here, since the particulate adsorbent 210A made of a polymer material has low thermal conductivity, the heat transferred from the heat transfer tube 130 is difficult to be transferred to the particulate adsorbent 210A located at a position away from the heat transfer tube 130. ing.
In particular, in the embodiment, the particulate adsorbent 210A is adopted, and the particulate adsorbent 210A has a small contact area with the other adjacent particulate adsorbent 210A, so that the gap L1 between the heat transfer tubes 130 and 130 is reduced. If the mixed material 200A filled in is only the particulate adsorbent 210A, the transfer of heat to the particulate adsorbent 210A at a position away from the heat transfer tube 130 is further deteriorated.

Therefore, in the embodiment, a fibrous heat transfer promoting member 220A that plays a role as a heat transfer material is mixed with the particulate adsorbent 210A, and the particulate adsorbent 210A at a position away from the heat transfer tube 130 is used. Even so, heat can be transferred through the heat transfer promoting member 220A.

The heat transfer promoting member 220A is made of a material having a higher thermal conductivity than the particulate adsorbent 210A, and in this embodiment, a non-ferrous material such as copper (including a copper alloy) or aluminum (including an aluminum alloy). The heat transfer promoting member 220 </ b> A is made of the above metal material or an iron-based metal material (iron).

The material constituting the heat transfer promoting member 220A is preferably a material having a small potential difference from the material constituting the heat transfer tube 130.
When the fluid flowing through the container 10 of the compressor 1 is water, if the potential difference between the material constituting the heat transfer promotion member 220A and the material constituting the heat transfer tube 130 is large, one of the materials corrodes. It is because there is a possibility of doing.

The heat transfer promoting member 220A is made of the above metal material in a fiber shape. In the embodiment, the heat transfer promoting member 220A has a mean length that is 1/2 or more of the gap L1 between the heat transfer tube 130 and the heat transfer tube 130. The heat promoting member 220A is used.

As shown in FIG. 5C, in the embodiment, the heat transfer promoting member 220 </ b> A has a density in the vicinity of the heat transfer tube 130 (first region Q <b> 1) of the adjacent heat transfer tubes 130 and 130. It is provided so as to be higher than the density in the intermediate region (second region Q2), and the density of the heat transfer promoting member 220A increases as it approaches the heat transfer tube 130. This is to increase the contact opportunities between the heat transfer promotion member 220A that plays the role of a heat transfer material and the heat transfer tube 130.

Here, one end side in the longitudinal direction of the heat transfer promoting member 220A is in contact with the surface of the heat transfer tube 130, and the other end side is located in a region (second region Q2) between the adjacent heat transfer tubes 130 and 130. It is preferable that it is provided.
The heat transfer promoting member 220 </ b> A is disposed so as to extend in the radial direction of the heat transfer tube 130, and is preferably disposed radially in the circumferential direction around the heat transfer tube 130.

When the heat transfer promoting member 220A is provided in this way, the heat transfer promoting member 220A is distributed over substantially the entire area in the mixed material 200A filled in the gap L1 between the heat transfer tubes 130, 130, and therefore at a position away from the heat transfer tube 130. Even if it is a certain particulate adsorbent 210A, as long as it is in contact with the heat transfer accelerating member 220A, the heat of the heat transfer tube 130 can be transferred at high / low temperatures.

That is, when the heat transfer tube 130 is heated / cooled, the heat transfer promoting member 220A in contact with the surface of the heat transfer tube 130 is first heated / cooled, and then the heated / cooled heat transfer promoting member 220A Since the contacting particulate adsorbent 210A is heated / cooled over the entire length, even the particulate adsorbing material 210A located away from the heat transfer tube 130 is in contact with the heat transfer promoting member 220A. As long as it is heated / cooled by the heat transferred through the heat transfer promoting member 220A.
Therefore, the particulate adsorbent 210A located at a position away from the heat transfer tube 130 can be heated / cooled with high responsiveness, so that the adsorbate desorption / adsorption on the particulate adsorbent 210A can be appropriately controlled. Become.

As described above, the heat transfer promoting member 220 </ b> A has a length that is ½ or more of the gap L <b> 1 between the adjacent heat transfer tubes 130 and 130.
Therefore, even if the heat transfer promoting member 220A is disposed in the gap L1 in a complicatedly bent state, the other end side of the heat transfer promoting member 220A is an intermediate region between the adjacent heat transfer tubes 130, 130. It is possible to reach (second region Q2). Thereby, the high temperature / low temperature heat of the heat transfer tube 130 can be reliably transmitted to the particulate adsorbent 210 </ b> A located away from the heat transfer tube 130.

In addition, the length of the heat transfer promoting member 220A is set to be 1/2 or more of the gap L1 between the adjacent heat transfer tubes 130 and 130, thereby extending from one of the adjacent heat transfer tubes 130 and 130. The heat transfer promoting member 220A and the heat transfer promoting member 220A extending from the other are provided so as to be entangled in an intermediate region (second region Q2) between the heat transfer tubes 130 and 130.
Therefore, the heat transfer promoting member 220A serving as a heat transfer material (heat medium) has a high temperature / high temperature of the heat transfer tube 130 over substantially the entire intermediate region (second region Q2) between the heat transfer tubes 130 and 130. It becomes possible to transfer low-temperature heat.

In addition, you may make it provide the heat-transfer acceleration | stimulation member 220A so that both the adjacent heat-transfer tubes 130 and 130 may be contacted. In this way, heat is transferred from the two heat transfer tubes 130, 130 to one heat transfer promotion member 220A. Therefore, when the heat transfer tubes 130, 130 are heated / cooled, the heat transfer promotion member 220A is heated. This is because it is expected that the heating / cooling can be performed more quickly.

Next, an example of a method for mixing the particulate adsorbent 210A and the heat transfer promoting member 220A and filling the gap L1 will be described.

First, the heat transfer promoting member 220A is filled in the gap L1 between the adjacent heat transfer tubes 130, 130.
Here, the heat transfer promotion member 220 </ b> A is held between the heat transfer tubes 130 and 130 (a) so that the heat transfer promotion member 220 </ b> A is entangled with the outer periphery of the heat transfer tube 130, and (b) on the outer periphery of the heat transfer tube 130. The heat transfer promoting member 220A can be held between the heat transfer tubes 130, 130 such as bonding to the applied adhesive.

When the heat transfer promoting member 220A is held on the heat transfer tube 130 by the method (b), the adhesive is not applied over the entire outer periphery of the heat transfer tube 130, but the heat transfer promoting member 220A. It is preferable to provide only the ends to be bonded.
In this case, the end side of the fibrous heat transfer promoting member 220 </ b> A having the end side held by the heat transfer tube 130 is provided so as to be wound around a region of the outer periphery of the heat transfer tube 130 where no adhesive is applied. Thus, the heat when the heat transfer tube 130 is heated / cooled can be transmitted from the portion wound around the outer periphery of the heat transfer tube 130 to the heat transfer promoting member 220A, so that the adhesive is made of a material having low heat conductivity. This is because it is possible to prevent the heating / cooling of the heat transfer promoting member 220A from being hindered even when the heat transfer is promoted.

Subsequently, the particulate adsorbent 210A is filled into the gap L1 between the heat transfer tubes 130 and 130 where the heat transfer promoting member 220A is disposed.
At this time, after the particulate adsorbent 210A is sprayed on the heat transfer promoting member 220A, vibration by so-called tapping is applied so that the particulate adsorbent 210A enters between the entangled heat transfer promoting members 220A. It is preferable.

In order to prevent the particulate adsorbent 210A from dropping off, a sheet made of a gas-permeable material having an opening smaller than the particle diameter of the particulate adsorbent 210A is used as the adsorption heat exchanger 100. In this sheet, a mixed material 200A that is a mixed material of the particulate adsorbent 210A and the heat transfer promoting member 220A is accommodated inside the sheet, and the mixed material 200A Alternatively, the heat transfer tubes 130 and 130 may be disposed around the gap L1 and the heat transfer tube 130.

In this way, when the mixed material 200A, which is a mixed material of the particulate adsorbent 210A and the heat transfer promoting member 220A, is filled into the gap L1 of the heat transfer tube 130, the gap L1 between the heat transfer tubes 130 and 130 and the heat transfer tube 130 are filled. The adsorption heat exchanger 100 in which the mixed material 200A is arranged around can be obtained.

Furthermore, by applying a pressure that does not greatly impair the adsorption performance of the particulate adsorbent 210A to the mixed material of the particulate adsorbent 210A and the heat transfer promoting member 220A, the mixture 200A can maintain a predetermined shape. The mixture material thus molded may be filled in the gap L1 of the heat transfer tube 130.

As described above, in the embodiment,
In an adsorption heat exchanger configured to heat / cool the mixed material 200A by heating / cooling the heat transfer tube 130 to desorb / adsorb moisture (adsorbate) on the mixed material 200A, the heat transfer tube 130 is A plurality of gaps L1 are provided, and a particulate adsorbent 210A (polymer adsorbent) and a fibrous heat transfer promoting member 220A having higher thermal conductivity than the particulate adsorbent 210A are provided in the gap L1. It was set as the structure filled with the mixed material mixed.

Since the particulate adsorbent 210A has low thermal conductivity, if the mixed material 200A filled in the gap L1 of the heat transfer tube 130 is only the particulate adsorbent 210A, the particulate adsorbent 210A is separated from the heat transfer tube 130. The transfer of heat to the adsorbent 210A becomes worse. As a result, when the heat transfer tube 130 is heated / cooled, it becomes difficult to heat / cool the particulate adsorbent 210A with high responsiveness. Therefore, desorption / adsorption of moisture (adsorbate) to the particulate adsorbent 210A is difficult. It becomes difficult to control.
When configured as described above, the mixed material 200A is mixed with the fibrous heat transfer promoting member 220A having a higher thermal conductivity than the particulate adsorbent 210A in addition to the particulate adsorbent 210A. Since the heat transfer promoting member 220A serves as a heat transfer material, the heat of the heat transfer tube 130 can be reliably transferred to the entire polymer-based particulate adsorbent 210A via the heat transfer promotion member 220A. .

The fibrous heat transfer promoting member 220 </ b> A has a configuration in which at least one end side in the longitudinal direction is provided in contact with the heat transfer tube 130.

With such a configuration, the fibrous heat transfer promoting member 220A can transfer the heat of the heat transfer tube 130 to the other end side in the longitudinal direction, so that the particulate adsorbent 210A is located away from the heat transfer tube 130. However, since heat can be transferred as long as it is in contact with the heat transfer promoting member 220A, when the heat transfer tube 130 is heated / cooled, the mixed material 200A at a position away from the heat transfer tube 130 is heated with good responsiveness. / Cooling so that the desorption / adsorption of moisture (adsorbate) on the particulate adsorbent 210A contained in the mixed material 200A can be appropriately controlled.

In the above-described embodiment, the case where the heat transfer promoting member 220A is a non-ferrous metal such as copper or aluminum or a metal such as iron is exemplified. However, a material having higher thermal conductivity than the particulate adsorbent 210A may be used. Any material that has high thermal conductivity and also functions as an adsorbent can be used in place of these non-ferrous metals and metals.
As such a material, for example, metal fibers such as iron, non-ferrous metal fibers such as copper and aluminum, carbon fibers, activated carbon fibers, or a mixed material thereof can be suitably used.
Moreover, the material which made graphite, silica gel, activated alumina, activated bauxite, synthetic silica gel, etc. into fiber shape, or the fiber material which combined these materials can also be used conveniently.

Even with this configuration, the same effect as in the above-described embodiment can be obtained.

Further, in the above-described embodiment, the case where the polymer adsorbent is in the form of particles has been described as an example. However, a polymer adsorbent formed in a fiber shape may be used.
In this way, if the mixing material 200A is configured by entwining the fibrous polymer adsorbent and the fibrous transmission promoting member, the mixing material 200A can have a specific shape. It is expected that the mixed material can be easily filled in the gap between the heat transfer tubes 130 and 130.

In the above-described embodiment, the case where the heat transfer promoting member 220A is a metal material having a higher thermal conductivity than the particulate adsorbent 210A made of a polymer material has been described as an example. The member 220A is preferably made of a metal material having a small potential difference from the heat transfer tube 130.
If comprised in this way, when the fluid which flows in the container 10 of the compressor 1 is water, since the electric potential difference of the material which comprises 220 A of heat transfer promotion members and the material which comprises the heat exchanger tube 130 is small. Corrosion caused by the potential difference can be prevented.

The above-mentioned mixed material of the particulate polymer-based adsorbent and the fibrous transmission promoting member is housed in a bag formed by weaving high thermal conductivity fibers, and the bag containing the mixed material is The gap L1 between the heat transfer tubes 130 and 130 may be filled.
By doing so, it is expected that the gap between the heat transfer tubes 130 and 130 can be easily filled, and the heat of the heat transfer tubes 130 and 130 is accommodated in the bag. Can quickly communicate to the mixed material.

In the first embodiment described above, the adsorbent 200 in which the particulate adsorbent 210 and the fibrous adsorbent 220 are mixed in the gap L1 between the heat transfer tube 130 and the heat transfer tube 130 in the adsorption heat exchanger 100 is used. In the second embodiment, the case of filling is exemplified by the case where the mixture 200A of the particulate adsorbent (hereinafter referred to as the particulate adsorbent 210A) and the fibrous heat transfer promoting member 220A is filled. However, a mixture of the adsorbent 200 of the first embodiment and the mixed material 200A of the second embodiment may be filled. Even in such a case, the same operations and effects as those in the above-described embodiments are achieved.

DESCRIPTION OF SYMBOLS 1 Compressor 10 Container 12 Supply pipe 14 Discharge pipe 100, 100A Adsorption-type heat exchanger 110 Supply pipe 120 Branching tank 130 Heat transfer pipe 132 Protrusion 140 Junction tank 150 Discharge pipe 200 Adsorbent 200A Mixture 210, 210A Particulate adsorption Material 220 Fibrous adsorbent 220A Heat transfer promoting member 240 Housing member 242 Housing portion 242A Inner wall surface 246 Opening B Heat exchange medium L1 Gap

Claims (11)

In the adsorption heat exchanger configured to heat / cool the adsorbent by heating / cooling the heat transfer tube and desorb / adsorb the adsorbate on the adsorbent,
An adsorption heat exchanger characterized in that a plurality of the heat transfer tubes are provided with a gap therebetween and the gap is filled with the adsorbent. The adsorbent,
The adsorption heat exchanger according to claim 1, wherein the adsorbent heat exchanger is a mixture of a particulate adsorbent and a fibrous adsorbent. The adsorption heat exchanger according to claim 2, wherein the density of the fibrous adsorbent in the mixed material filled in the gap is increased in the vicinity of the heat transfer tube. The mixed material of the particulate adsorbent and the fibrous adsorbent is filled in the gap in a state of being accommodated in an accommodating member formed of the fibrous adsorbent. The adsorption heat exchanger according to claim 2 or claim 3. The adsorption heat exchanger according to any one of claims 2 to 4, wherein the fibrous adsorbent includes at least activated carbon fibers. The adsorption heat exchanger according to any one of claims 1 to 5, wherein the particulate adsorbent is composed of a carbon-based material containing at least activated carbon. The adsorbent is a polymer adsorbent, and the gap is filled with a mixture of the adsorbent and a fibrous heat transfer promoting member having higher thermal conductivity than the adsorbent. The adsorption heat exchanger according to claim 1, wherein The adsorption heat exchanger according to claim 7, wherein the fibrous heat transfer promoting member is provided so that at least one end side in the longitudinal direction is in contact with the heat transfer member. The adsorption heat exchanger according to claim 7 or 8, wherein the polymer-based adsorbent is a particulate or fibrous adsorbent. 10. The heat transfer promoting member according to claim 7, wherein the heat transfer promoting member is at least one of a metal fiber, a non-ferrous metal fiber, a carbon fiber, and an activated carbon fiber. Adsorption heat exchanger. The adsorption heat exchange according to any one of claims 7 to 9, wherein the heat transfer promoting member is a metal fiber made of a metal material having a small potential difference from the heat transfer tube. vessel.

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