JPH04148164A - Adsorption refrigerating machine - Google Patents

Abstract

PURPOSE:To accelerate movement of substance with respect to adsorbent of gas medium and to reduce heat exchanging loss by mixing the medium with carrier gas, forcibly circulating the mixture in a system, disposing the adsorbent at one side of inside and outside of a room of a double tube structure, and directly supplying operating medium to a user side heat exchanger. CONSTITUTION:Carrier gas Cg has properties not to be adsorbed to adsorbent 15. The gas Cg is sealed to be mixed in a circulation system of gas medium Wg for coupling an operating medium vessel 2 to an adsorption heat exchanger 1, and forcibly circulated as mixture gas medium G. Accordingly, movement of the medium Wg to the adsorbent 15 side is performed effectively in a short time, and adsorption is efficiently achieved. Further, the exchanger 1 is formed in a double tube structure, the surface area of an inner tube 11 to become a heat transfer wall from cooling fluid Fa to the adsorbent 15 is increased, the adsorbent 15 is disposed in a close contact state on the outer periphery of the tube 11, contact thermal resistance between both is reduced to enhance heat transfer performance from the fluid Fa to the adsorbent 15. Liquid medium Wl is directly supplied to an indoor heat exchanger 3 to prevent a decrease in heat loss.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a working medium, such as water, which changes phase between a gas phase and a liquid phase, and an adsorption action and release of the working medium in response to temperature changes. An adsorption type that combines an adsorbent such as zeolite or silica gel that performs an adsorption action, and uses the latent heat of vaporization of the working medium during the adsorption action of the adsorbent and the latent heat of condensation during the release action as a heat source for air conditioning, for example. This relates to refrigeration equipment.

(Prior art) As an adsorption refrigeration system, for example,
The one disclosed in Japanese Patent No. 41056 is known.

In this type of adsorption refrigeration equipment, as described above, the gas medium is adsorbed by the adsorbent by cooling it, and the gas medium adsorbed by the adsorbent is released by heating it. However,
In this case, the mass transfer of the gas medium to the adsorbent usually takes place by the diffusion action of the gas medium.

On the other hand, the latent heat of vaporization and condensation of the working medium accompanying the adsorption and release of the gas medium by the adsorbent is used, for example, as a heat source for air conditioning. In this system, for example, cold water or hot water is secondarily secured from the low-temperature or high-temperature working medium obtained in the adsorption heat exchanger via a heat exchanger, and this is used as heat exchanger for air conditioning as a user-side heat exchanger. It was customary to use it as a cooling or heating heat source in an exchanger.

(Problem to be Solved by the Invention) However, if the mass transfer of the gas medium during adsorption and release relies solely on the diffusion action of the gas medium itself, the adsorption action becomes slow, especially during adsorption, and the heat of adsorption increases. There is a problem that the heat exchange performance in the exchanger becomes poor.

In addition, when using the latent heat of evaporation and condensation of the working medium, if the configuration is such that cold/hot water is obtained secondarily via a heat exchanger, heat exchange loss occurs when obtaining this cold/hot water. There was also the problem that heat exchange efficiency decreased.

Therefore, the present invention provides an adsorption refrigeration system that secures a higher level of heat exchange performance by promoting the mass transfer of the gas medium to the adsorbent and reducing heat exchange loss as much as possible. This was done as a courtesy.

(Means for Solving the Problems) In the present invention, as specific means for solving the problems, (1) In the invention according to claim 1, as illustrated in FIG. Wg and liquid medium in liquid phase w
(A closed container 10 filled with a working medium W whose phase changes between to cause an evaporation effect on the liquid medium W11, while the gas medium W[
an adsorption heat exchanger l equipped with an adsorbent 15 that acts to cause a condensation effect on the liquid medium W11 by discharging , and a user-side heat exchanger that utilizes the latent heat of condensation and evaporation of the working medium W. In the adsorption refrigeration apparatus comprising a vessel 3.4, a carrier gas Cg such as helium gas having properties that is not adsorbed by the adsorbent 15 is sealed in the closed vessel 1o, and the carrier gas Cg and the above forced circulation means 2 that acts to forcibly circulate the mixed gas medium G with the gas medium Wg in the closed container 10;
1, ([1) In the invention according to claim 2, as illustrated in FIG. 2, FIG. 3, FIG. 4, and FIG. 5, respectively,
In the adsorption refrigeration apparatus described above, an adsorption heat exchanger 1 is provided by an inner tube 11 made of a heat-conductive tube, and an outer tube 1 which is fitted onto the outside of the inner tube 11 at a predetermined interval and overlapped with the inner tube 11.
2, and an inner chamber 13 on the inner peripheral surface side of the inner tube 11 and an outer chamber 14 formed between the inner tube 11 and the outer tube 12.
The cooling fluid Fa and the heating fluid Fb are circulated in one side of the chamber, and the mixed gas medium G is circulated in the other side, and the mixed gas medium of the inner chamber 13 and the outer chamber 14 is circulated. It is characterized in that an adsorbent 15 is disposed on the side where G circulates, (I[l) In the invention according to claim 3, as illustrated in FIGS. In the adsorption type refrigeration apparatus, an adsorbent 15 is disposed on the outer chamber 14 side and in a fixed state on the outer circumferential surface of the inner tube 11 so as to cover the outer circumferential surface of the inner tube 11 in an annular shape,
(■) In the invention described in claim 4, as illustrated in FIG.
(V) The invention according to claim 5 is characterized in that heat transfer fins 1616 are provided on the outer circumferential surface of the absorbent 15 so that heat can be transferred through contact with the adsorbent 15. In the adsorption refrigeration system according to claim 2, the adsorbent 15 is disposed on the inner chamber 13 side and in a fixed state on the inner circumferential surface of the inner tube 11 so as to cover the inner circumferential surface of the inner tube 11 in an annular shape. (Vl) In the invention according to claim 6, as illustrated in FIG. 3, in the adsorption refrigeration apparatus according to claims 1 to 5,
It is characterized in that the working medium W of the adsorption heat exchanger 1 is directly supplied as a heat medium fluid to the utilization side heat exchanger 3.4.

(Function) Since each of the inventions of the present application has such a configuration, the following functions can be obtained respectively.

(i) In the adsorption refrigeration apparatus according to claims 1 to 5, since the carrier gas Cg sealed in the closed container IO is forcibly circulated within the system by the forced circulation means 21, the gas medium Wg is The mixed gas medium G mixed with the carrier gas Cg is forcibly circulated within the system, and the movement of the gas medium Wg toward the adsorbent 15 is more likely than when the movement of the gas medium Wg is based only on its diffusion effect, for example. This will be done quickly and smoothly, and the adsorption effect on the adsorbent I5 will be further promoted.

(ii) In addition to the effect described in (i), the adsorption refrigeration apparatus according to claim 2 has the adsorbent 15 disposed on either side of the inner chamber 13 or outer chamber 14 of the double pipe structure, and Since the mixed gas medium G is circulated in this chamber, and the cooling fluid Fa or the heating fluid Fb is circulated in the other chamber, the entire circumference of the inner pipe 11 that partitions the compartment is covered with the adsorbent 15. It functions as a heat transfer part for the heat transfer area, and heat transfer is promoted by ensuring a large heat transfer area.

In addition, by promoting heat transfer from the cooling fluid Fa or the heating fluid Fb to the adsorbent 15, the gas medium Wg is adsorbed onto the adsorbent 15 or released from the adsorbent 15. .

(iii) In the adsorption refrigeration apparatus according to claims 3 and 5, the adsorbent 15 is disposed in a fixed state on the inner circumferential surface or outer circumferential surface of the inner tube that partitions the inner chamber 13 and the outer chamber 14. Therefore, heat transfer from the cooling fluid Fa or the heating fluid Fb to the adsorbent 15 is further promoted, and a higher level of adsorption/desorption action than in the case described in (11) above can be obtained.

(IV) In the adsorption refrigeration apparatus according to claim 4, heat transfer fins l 6.16. ... is arranged on the outer circumferential surface of 11 and in such a way that it can contact heat transfer with the adsorbent 1.5, and the heat transfer fin + 6.16. As a result, the heat transfer from the inner tube 11 to the adsorbent 15 is enhanced, and the adsorption/desorption power of the gas medium Wg to the adsorbent 15 is further promoted.

(v) In the adsorption refrigeration system according to claim 6, since the working medium W of the adsorption heat exchanger l is directly supplied to the user-side heat exchanger 34, for example, the heat exchanger between the working medium W and the working medium W is Compared to the case where the cold/hot water obtained secondarily through the exchange is supplied to the user-side heat exchanger, an effect is obtained in which the heat exchange loss is reduced as much as possible.

(Effects of the Invention) Therefore, according to the adsorption refrigeration apparatus of each invention of the present application, the following effects can be obtained.

(2) In the adsorption refrigeration system according to claim 1, the adsorption and release of the gas medium Wg to the adsorbent 15 is promoted by forcedly circulating the carrier gas Cg sealed in the system, so that the heat exchange on the user side is improved. The working medium W, which is the heat source fluid of the heat exchanger 34, can be cooled or heated in a shorter time, and the heat exchange performance in the user-side heat exchanger 3.4 can be further improved. .

(2) In the adsorption refrigeration apparatus according to claims 2 to 5, in addition to the above-mentioned forced circulation effect of the gas medium Wg, heat transfer of the adsorbent 15 itself is promoted, so that the temperature is even higher than in the case described in (2) above. The effect is that a standard level of heat exchange performance is ensured.

(2) In the adsorption refrigeration system according to claim 6, in addition to the effect described in (1) above, the working medium W is directly used in the side heat exchanger 3.4.
Due to the effect of reducing heat exchange loss by using it as a heat source fluid, the effect of further improving heat exchange performance can be obtained.

(Embodiments) Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

First Embodiment FIG. 1 shows an adsorption refrigeration system according to an embodiment of the invention as set forth in claims 1 to 3 and 6 of the present application. This adsorption refrigeration system is applied as an indoor air conditioner, and includes a pair of adsorption heat exchange units Ul and U2, which will be described later, and an adsorption heat exchanger l of the winter clothing heat exchange units Ul and U2.
A heat source 5 (described later) for operating the adsorption heat exchange unit U1. It is comprised of an indoor heat exchanger 3 and an outdoor heat exchanger 4 as user-side heat exchangers that perform cooling and heating using the working medium W of U2 as a heat source fluid.

Each of the adsorption heat exchange units Ul and U2 has the same configuration, and is connected to the first adsorption heat exchange unit Ul and U2.
Taking this as an example, the first adsorption heat exchange unit)U
The adsorption heat exchanger 11ii1 is constructed by arranging an adsorption heat exchanger 1, which will be described later, in a closed container 10, which will be described later. It has a double-tube structure consisting of a tube 11 and an outer tube 12 made of a closed tube body coaxially fitted and arranged outside the inner tube 11. Note that the inner space of the inner tube 11 is the inner chamber 13.
The empty space between the inner tube 11 and the outer tube 12 is an outer chamber 14 having a predetermined volume.

Further, on the outer circumferential surface of the inner tube 11 facing the outer chamber 14, an adsorbent 15 such as zeolite or sorip gel is fixed in a ring shape with a predetermined thickness so as to cover the entire outer circumferential surface. ing.

Further, the inner chamber 13 of the inner tube 11 is connected to a second adsorption heat exchange unit (U2 side) through a fluid pipe line 26 which is equipped with a heat source 5 such as a burner and a fluid pump 22 in the middle of the passage. It is connected to the inner chamber 13 of the exchanger 1 and constitutes one closed pipe line. Note that a predetermined amount of cooling fluid Fa is in this pipe.
Alternatively, a fluid such as oil is sealed as the heating fluid Fb. Therefore, as will be described later, when the first adsorption heat exchange unit U1 is in the regeneration process, the high temperature heating fluid Fb heated by the heat source 5 is stored in the inner chamber 13, and the first adsorption heat exchange unit When U) is in the adsorption process, the low-temperature cooling fluid Fa that has been cooled by heat exchange (heat release) on the second adsorption heat exchange unit [12 side] is selectively circulated. Note that the fluid pump 22 is connected to each adsorption heat exchange unit tJ1. When U2 is switched between the adsorption stroke and the regeneration stroke, the discharge direction can be reversibly switched at the same time.

On the other hand, the outer chamber 14 is provided with a working medium pipe 23, 23 equipped with a working medium pump 2 (corresponding to forced circulation means in the claims) in the middle of the passage. It is connected to the upper part of a closed working medium container 2 containing a fixed amount of working medium W (water is used in this embodiment). The outer chamber 14, the working medium conduit 23, and the working medium container 2 constitute one closed circulation system (this corresponds to the closed container 10 in the claims). Further, a predetermined amount of helium gas is sealed in this closed circulation system as a carrier gas Cg, and this carrier gas Cg is forcibly circulated by the working medium pump 21. Therefore, the working medium W in the gas phase, that is, the gas medium Wg, circulates in the outer chamber 14 as a mixed gas medium G mixed with the carrier gas Cg. still,
This carrier gas Cg needs to have the property of not being adsorbed by the adsorbent 15, and any carrier gas that satisfies this condition is sufficient, and is not limited to helium gas as in this embodiment.

The indoor heat exchanger 3 and the outdoor heat exchanger 4 are connected via a pair of valves 24 and 25 to the bottom of the working medium container 2 on the first adsorption heat exchange unit (U1 side) and the working medium of the second adsorption heat exchange unit U2. They can be selectively connected to the bottom of the container 2, respectively, so that the liquid medium WI11 in the working medium container 2 can be directly introduced as the heat transfer fluid W a , W b.

Next, the operation of the adsorption refrigeration system configured as described above will be explained using an example during cooling operation.

First, each adsorption heat exchange unit U1.
Select the operating stroke of U2. That is, at the start of operation, the unit whose adsorbent 15 is at a high temperature, for example, in this embodiment, the first adsorption heat exchange unit Ul side, is placed in the adsorption process where gas medium Wg is adsorbed, and the adsorbent 15 is placed at a low temperature in the adsorption process. The two adsorption heat exchange units U2 are each set to a regeneration process in which the gas medium Wg is discharged (specifically, the fluid pump 22 is set so that the first adsorption heat exchange unit Ul is on the upstream side of the heating source 5. setting the discharge direction).

Therefore, when the operation starts, the cooling fluid Fa and the heating fluid Fb circulate in the direction shown by the arrow in FIG.
The low-temperature cooling fluid Fa after heat exchange (heat release) on the adsorption heat exchange unit U2 side is filled with the first adsorption heat in the inner chamber 13 of the adsorption heat exchanger l of the second adsorption heat exchange unit U2. The high-temperature heating fluid Fb, which has been heated by the heat source 5 after being heated by the heat of adsorption of the exchange unit Ul, is circulated.

By doing this, on the first adsorption heat exchange unit Ul side, the adsorbent 15 is cooled by the cold heat of the cooling fluid Fa, and the mixed gas medium G circulating in the outer chamber 14
An adsorption step is performed in which the gas medium Wg therein is adsorbed to promote evaporation of the liquid medium WQ in the working medium container 2. on the other hand,
On the second adsorption heat exchange unit U2 side, the adsorbent 15
is heated by the heating fluid Fb, and the adsorbent 1
The gas medium Wg adsorbed on 5 is released and the gas medium W
Execute a regeneration process that promotes condensation of g. That is, on the first adsorption heat exchange unit Ul side, its function is maintained by releasing adsorption heat by the cooling fluid Fa.
Further, on the second adsorption heat exchange unit U2 side, its function is maintained by providing heat released by the heating fluid Fb.

Due to the adsorption process on the first adsorption heat exchange unit Ul side, the working medium container 2 on the first adsorption heat exchange unit Ul side is
The liquid medium WU inside is cooled by latent heat of vaporization and becomes cold water. Further, due to the regeneration process on the second adsorption heat exchange unit U2 side, the liquid medium Wu in the working medium container 2 on the second adsorption heat exchange unit U2 side is heated up by latent heat of condensation and is turned into hot water. And this first adsorption heat exchange unit U
The cold water on the first side is directly supplied to the indoor heat exchanger 3 side as a heating medium fluid Wa for cooling, and is used for indoor cooling. On the other hand, the hot water on the second adsorption heat exchange unit U2 side is introduced into the outdoor heat exchanger Q11 as a heat transfer fluid wb for heat radiation, and releases the heat of condensation.

In this system, when a predetermined period of time has passed after the start of operation and the adsorption/regeneration capacity of each adsorption heat exchange unit UI U2 has decreased, the first adsorption heat exchange unit UI U2 is switched by switching the fluid pump 22. Ul is transferred from the adsorption process to the regeneration process, and also from the second adsorption heat exchange unit U.
2, the strokes are switched from the regeneration stroke to the adsorption stroke, and by repeating this stroke switching at predetermined intervals, continuous operation of the adsorption refrigeration system is realized.

By the way, when an adsorption refrigeration system is applied to an air conditioner to perform cooling operation as in this embodiment, in order to further improve its heat exchange performance (i.e., cooling capacity), the adsorption heat exchange 51 must be It is important to obtain low-temperature cold water efficiently and to supply the obtained cold water to a user-side heat exchanger with as little heat loss as possible to exchange heat with indoor air.

In this case, in the adsorption refrigeration system of this embodiment, a carrier gas Cg is first added to the circulation system connecting the working medium container 2 and the adsorption heat exchanger l as a means of improving the heat exchange performance of the adsorption heat exchanger l. is enclosed and used as a working medium pump 21
At the same time, the cooling fluid P is
This is dealt with by promoting heat transfer between a and the adsorbent 15.

That is, by enclosing a carrier gas Cg in the circulation system of the gas medium Wg and forcibly circulating it, the gas medium Wg mixes with the carrier gas Cg and is forced to circulate within the system as a mixed gas medium G. Being washed away. Therefore, for example, instead of using the carrier gas Cg as in the conventional case, the gas medium W
The gas medium Wg is absorbed by the adsorbent 15 only by the diffusion effect of
The gas medium W
The movement of the gas medium Wg to the adsorbent 15 side is performed more quickly and reliably, and as a result, the gas medium Wg is adsorbed onto the adsorbent 15 at a higher rate. Furthermore, in addition to this, the adsorption heat exchanger l has a double pipe structure, and the surface area of the inner pipe 11, which serves as a heat transfer wall from the cooling fluid Fa to the adsorbent 15, is increased (that is, the heat transfer area is increased). At the same time, the adsorbent 15 is arranged in close contact with the outer peripheral surface of the inner tube 11 to reduce the contact thermal resistance between the two, thereby increasing the heat transfer performance from the cooling fluid Fa to the adsorbent 15. ing. Due to the synergistic effect of both, the heat exchange performance of the adsorption heat exchanger 1 is improved.

On the other hand, in order to prevent a decrease in heat loss in the heat exchanger on the user side, it is necessary to create cold water secondarily by heat exchange with the liquid medium WIl and supply it to the indoor heat exchanger 3 side, as in the conventional method. Instead, the liquid medium Wa is directly supplied to the indoor heat exchanger 3, so that the cold energy of the liquid medium W can be used more efficiently as a cooling heat source.

Therefore, in this adsorption refrigeration system, a higher level of heat exchange performance (cooling performance) is ensured than that of the conventional structure.

Second Embodiment FIG. 4 shows the main parts of an adsorption heat exchanger 1 applied to an adsorption refrigeration system according to a second embodiment of the present invention. This adsorption heat exchanger l is similar to the first embodiment in that it has a double tube structure consisting of an inner tube 11 and an outer tube 12 in order to improve heat exchange performance, but it also has the following features: In this embodiment, the adsorbent 15 is arranged on the inner peripheral surface of the inner tube 11 (that is, on the inner chamber 13 side), the mixed gas medium G is placed on the inner chamber 13 side, and the cooling fluid is placed on the outer chamber 14 side. Fa or heating fluid F
b is made to circulate.

In this case, it goes without saying that the same effects as those of the first embodiment described above can be obtained, but in addition to this, since the adsorbent 15 is arranged inside the inner tube 11, The inner tube 11 functions as a reinforcing material for the adsorbent 15, and can improve the strength of the adsorbent 15 or promote heat transfer by reducing its thickness.

Third Embodiment FIG. 5 shows the main parts of an adsorption heat exchanger l applied to an adsorption refrigeration system according to a third embodiment of the present invention.

This adsorption heat exchanger 1 has a double tube structure consisting of an inner tube 11 and an outer tube 12 in order to improve heat exchange performance, and the adsorbent 15 is arranged on the outer peripheral surface as shown in FIG. This is the same as in the first embodiment, but in addition, in this embodiment, in view of the fact that the adsorbent 15 originally has poor heat conductivity, A plurality of heat-conductive heat-transfer fins 16 +6 . In this way, heat transfer fins + 6.16. By providing..., the inner pipe 1
Heat transfer from the 1 side to the adsorbent 15 side is promoted, and a higher level of heat exchange performance can be obtained. Furthermore, it goes without saying that this embodiment also provides the same effects as those of the above-mentioned embodiments.

In each of the above embodiments, the first adsorption heat exchanger 1 is placed horizontally, but the present invention is not limited to this. For example, the first adsorption heat exchanger 1 It is also possible to arrange it vertically in a state where it is erected.

[Brief explanation of drawings]

FIG. 1 is an overall system diagram of an adsorption refrigeration apparatus according to a first embodiment of the present invention, FIG. 2 is a detailed structural explanatory diagram of the adsorption heat exchanger shown in FIG. 1, and FIG. 3 is a perspective view thereof. FIG. 4 is a perspective view of a main part of an adsorption heat exchanger applied to an adsorption refrigeration system according to a second embodiment of the present invention, and FIG.
FIG. 2 is a perspective view of a main part of an adsorption heat exchanger applied to an adsorption refrigeration apparatus according to an embodiment. 1... Adsorption heat exchanger 2... Working medium container 3... Indoor heat exchanger 4... Outdoor heat exchanger 5... Heat source IO... Sealed container 11. ...Inner pipe 12...Outer pipe 13...Inner chamber 14...Outer chamber 15...Adsorbent 16...Heat transfer fins 21...Working medium pump 22...Fluid pump 23...Working medium pipe line 1 Adsorption heat exchanger Figure 4 1 Adsorption heat exchanger

Claims (1)

[Claims] 1. A gas medium (Wg) in a gas phase state and a liquid medium (Wg) in a liquid phase state (
A cooling fluid (Fa) or a heating fluid (Fb) is supplied into a sealed container (10) filled with a working medium (W) whose phase changes between ), it adsorbs the gas medium (Wg) and causes an evaporation effect on the liquid medium (Wl), while the heating fluid (F
b) disposing an adsorption heat exchanger (1) equipped with an adsorbent (15) that discharges the gas medium (Wg) and acts to cause a condensation effect on the liquid medium (Wl) when receiving the gas; An adsorption refrigeration device comprising a user-side heat exchanger (3, 4) that utilizes the latent heat of condensation and evaporation of the working medium (W), wherein the adsorbent (
15) is filled with a carrier gas (Cg) such as helium gas that is not adsorbed, and a mixed gas medium (Wg) of the carrier gas (Cg) and the above gas medium (Wg).
An adsorption refrigeration apparatus characterized by comprising forced circulation means (21) that acts to forcibly circulate G) in the closed container (10). 2. In claim 1, the adsorption heat exchanger (1) includes an inner tube (11) made of a heat-conductive tube, and is inserted and inserted in an overlapping state at a predetermined distance from the inner tube (11) on the outside of the inner tube (11). and an inner chamber (13) on the inner peripheral surface side of the inner tube (11) and formed between the inner tube (11) and the outer tube (12). A cooling fluid (Fa) or a heating fluid (Fb) is circulated in one side of the outer chamber (14), and a mixed gas medium (G) is circulated in the other side, and the inner chamber (13) and An adsorption refrigeration device characterized in that an adsorbent (15) is arranged on the side of the outer chamber (14) through which the mixed gas medium (G) circulates. 3. In claim 2, the adsorbent (15) is located in the outer chamber (14).
An adsorption type refrigeration device characterized in that the adsorption type refrigeration device is disposed on the outer circumferential surface of an inner tube (11) in a fixed state so as to cover the outer circumferential surface of the inner tube (11) in an annular manner. 4. In claim 3, heat transfer fins (16, 16, . . . ) are provided on the outer peripheral surface of the inner tube (11) so as to be able to contact and transfer heat to the adsorbent (15). Features of adsorption refrigeration equipment. 5. In claim 2, the adsorbent (15) is in the inner chamber (13).
An adsorption type refrigeration device characterized in that the adsorption type refrigeration device is disposed in a fixed state on the inner circumferential surface of an inner tube (11) so as to cover the inner circumferential surface of the inner tube (11) in an annular manner. 6. Claims 1 to 5 are characterized in that the working medium (W) of the adsorption heat exchanger (1) is directly supplied as a heat medium fluid to the user-side heat exchanger (3, 4). Adsorption type refrigeration equipment.