JP2006125713A - Adsorption heating/hot water supply device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To retrieve intermediate temperature water with a high temperature, and at the same time, to contribute to energy saving. <P>SOLUTION: The adsorption heating/hot water supply device has a first heat exchanger 115 provided with an adsorbent 105 in a first container 103, a second heat exchanger 125 carrying out evaporation and condensation of a refrigerant 106, a third heat exchanger 110 provided with the adsorbent 105 in a second container 101, and a fourth heat exchanger 120 carrying out evaporation and condensation of the refrigerant 106. A first operation condition c1 to obtain heat of desorption by the first heat exchanger 115 and the third heat exchanger 110 and to provide heat of condensation in the intermediate temperature water 161 from the second heat exchanger 125 and the fourth heat exchanger 120, and a second operation condition c2 to obtain heat of evaporation by the second heat exchanger 125, to provide heat of adsorption in the first heat exchanger 115, to input circulation intermediate temperature water 163 having obtained heat from the first heat exchanger 115 into the fourth heat exchanger 120, and to provide heat of adsorption in the intermediate temperature water 161 having further obtained heat of evaporation and inputted in the third heat exchanger 110 are changed over at a certain time or at the same time. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention is for heating and cooling using adsorption / desorption action of an adsorbent due to temperature difference and phase change of a refrigerant such as water.

  BACKGROUND ART Conventionally, a heat cycle system using an adsorption heat pump is a general technique that is used in a wide variety of fields and applied to familiar devices such as an air conditioner and a water heater. However, in recent years, with the movement of energy saving based on environmental problems becoming active, further efficiency is required for heating devices, hot water supply devices, and the like using adsorption heat pumps.

FIG. 5 is a diagram showing the configuration of the adsorption heating / hot water supply apparatus of the prior art 1.
The first container 201 and the second container 202 are filled with a liquid such as water (hereinafter referred to as a refrigerant 206) used as a refrigerant, and the pressure containers are maintained in a vacuum so that the refrigerant 206 is easily evaporated. It is.
A first heat exchanger 210 provided with an adsorbent such as silica gel (hereinafter referred to as adsorbent 205) is provided in the upper part of the first container 201, and a second heat is provided in the lower part of the first container 201. The exchanger 220 is provided in a state where it is immersed in the refrigerant 206.
A third heat exchanger 230 provided with an adsorbent 205 is provided in the upper part of the second container 202, and a fourth heat exchanger 240 is provided in a state of being immersed in the refrigerant 206 at the lower part of the second container 202. It has been.

Next, the flow path under the first operating condition a11 in FIG. 5 will be described.
(1) The pipe 250 connected to the high temperature heat source inlet 260a is connected to the pipe 211 via the flow path switching valve 207a, the pipe 211 is connected to the pipe 212 via the first heat exchanger 210, and the pipe 212 is It is connected to the pipe 251 via the flow path switching valve 207b and connected to the high temperature heat source outlet 260b.
(2) The pipe 252 connected to the intermediate temperature water inlet 261a is connected to the pipe 221 via the flow path switching valve 207c, the pipe 221 is connected to the pipe 222 via the second heat exchanger 220, and the pipe 222 is It is connected to the pipe 253 via the flow path switching valve 207d, and is connected to the intermediate hot water outlet 261b.
(3) The pipe 252 connected to the medium temperature water inlet 261a is connected to the pipe 231 via the pipe 254 and the flow path switching valve 207a, and the pipe 231 is connected to the pipe 232 via the third heat exchanger 230. The pipe 232 is connected to the pipe 253 via the flow path switching valve 207b and the pipe 255, and is connected to the intermediate temperature water outlet 261b.
(4) The pipe 235 connected to the low temperature heat source inlet 262a is connected to the pipe 241 via the flow path switching valve 207c, the pipe 241 is connected to the pipe 242 via the fourth heat exchanger 240, and the pipe 242 is It is connected to the pipe 236 via the flow path switching valve 207d and connected to the low-temperature heat source outlet 262b.

Next, the flow path in the second operating condition a12 in FIG. 6 will be described. This is obtained by switching the flow path switching valves 207a to 207d in FIG.
(1) The pipe 250 connected to the high temperature heat source inlet 260a is connected to the pipe 231 via the flow path switching valve 207a, the pipe 231 is connected to the pipe 232 via the third heat exchanger 230, and the pipe 232 is It is connected to the pipe 251 via the flow path switching valve 207b and connected to the high temperature heat source outlet 260b.
(2) The pipe 252 connected to the intermediate temperature water inlet 261a is connected to the pipe 241 via the flow path switching valve 207c, the pipe 241 is connected to the pipe 242 via the fourth heat exchanger 240, and the pipe 242 is It is connected to the pipe 253 via the flow path switching valve 207d, and is connected to the intermediate hot water outlet 261b.
(3) The pipe 252 connected to the medium temperature water inlet 261a is connected to the pipe 211 via the pipe 254 and the flow path switching valve 207a, and the pipe 211 is connected to the pipe 212 via the first heat exchanger 210. The pipe 212 is connected to the pipe 255 and the pipe 253 via the flow path switching valve 207b, and is connected to the intermediate hot water outlet 261b.
(4) The pipe 235 connected to the low-temperature heat source inlet 262a is connected to the pipe 221 via the flow path switching valve 207c, and the pipe 221 is connected to the pipe 222 via the second heat exchanger 220. It is connected to the pipe 236 via the flow path switching valve 207d and connected to the low-temperature heat source outlet 262b.

In this configuration, the adsorbent 205 provided in the first heat exchanger 210 and the third heat exchanger 230 in a state in which the refrigerant 206 is adsorbed is a refrigerant adsorbed by flowing a high-temperature heat medium from the outside. 206 can be detached. On the other hand, at the same time, by flowing a low-temperature heat medium from the outside to the second heat exchanger 220 and the fourth heat exchanger 240, the refrigerant 206 in each container can be condensed.
In addition, the adsorbent 205 provided in the first heat exchanger 210 and the third heat exchanger 230 in a state where the refrigerant 206 has been desorbed can adsorb the refrigerant 206 by flowing a low-temperature heat medium from the outside. It can be carried out. On the other hand, at the same time, by flowing a low-temperature heat medium from the outside to the second heat exchanger 220 and the fourth heat exchanger 240, the refrigerant 206 in each container can be evaporated.

Next, the first operating condition a11 of the adsorption heating / hot water supply apparatus in the configuration of FIG. 5 will be described.
In the first container 201, the high temperature heat source 260 of about 85 ° C. is passed through the first heat exchanger 210. When the high-temperature heat source 260 of about 85 ° C. is passed through the first heat exchanger 210, the adsorbent 205 in the state in which the refrigerant 206 provided in the first heat exchanger 210 is adsorbed heats from the first heat exchanger 210. obtain. Thereby, the refrigerant 206 adsorbed by the adsorbent 205 is desorbed.
At the same time, the second heat exchanger 220 has medium temperature water (changes to about 20 ° C. to 50 ° C. depending on the stage. At the start of operation, the temperature is the same as tap water, In the following, the temperature of the medium-temperature water in a steady state is referred to as a medium-temperature water 261 of about ~ ° C.). When medium temperature water 261 of about 30 ° C. is passed through the second heat exchanger 220, the second heat exchanger 220 takes heat from the first container 201 and condenses the refrigerant 206. As a result of this process, intermediate temperature water 261 of about 35 ° C. is obtained from the second heat exchanger 220.
Since the amount of refrigerant filled in the first container 201 is finite, the amount of refrigerant adsorbed by the adsorbent 205 decreases with time, and the amount of condensation also decreases accordingly. Therefore, it hardly changes after a certain period of time.
In the second container 202, medium temperature water 261 of about 30 ° C. is passed through the third heat exchanger 230. The adsorbent 205 in the state where the refrigerant 206 provided in the third heat exchanger 230 is desorbed adsorbs the refrigerant 206 and generates heat. By passing the heat through the third heat exchanger 230 through the warm water 261 at about 30 ° C., the warm water 261 takes away through the third heat exchanger 230.
At the same time, the fourth heat exchanger 240 is passed through a low temperature heat source 262 of about 10 ° C. supplied from an outdoor unit (not shown). When the low temperature heat source 262 of about 10 ° C. is passed through the fourth heat exchanger 240, the refrigerant 206 in the second container 202 obtains heat from the low temperature heat source 262 of about 10 ° C. and evaporates. As a result of this process, intermediate temperature water 261 of about 35 ° C. is obtained from the third heat exchanger 230.
Since the amount of refrigerant charged in the second container 202 is finite, the amount of refrigerant adsorbed by the adsorbent 205 increases with time, and the evaporation amount decreases accordingly. Therefore, it hardly changes after a certain period of time.

Next, since a phase change does not occur after a certain time as described above, the flow path is changed as shown in FIG. 6 by switching to the second operating condition a12 described above.
By connecting in this way, this time, in the first container 201, adsorption occurs on the first heat exchanger 210 side including the adsorbent 205 in a state where the refrigerant 206 is desorbed, and the second heat exchanger 220 side Evaporation occurs. In the second container 202, desorption occurs on the side of the third heat exchanger 230 provided with the adsorbent 205 in the state where the refrigerant 206 is adsorbed, and condensation occurs on the side of the fourth heat exchanger 240. In this way, heat exchange becomes possible again. However, since the amount of refrigerant in each container is still finite, the amount of refrigerant adsorbed by the adsorbent 205 increases with time, and the evaporation amount decreases accordingly. Therefore, it hardly changes after a certain period of time.
By continuing the cycle in which the first operating condition a11 and the second operating condition a12 are switched over for a certain period of time, it is possible to stably obtain the medium temperature water 261 of about 35 ° C. The medium-temperature water 261 of about 35 ° C. obtained in this way is further reheated and used as a heat source for heating or hot water supply.

  However, the temperature that can be used for normal heating, floor heating, and hot water supply is at least about 50 ° C., and the medium-temperature water 261 of about 35 ° C. obtained by the prior art 1 has a low temperature for direct use. Therefore, a considerable amount of heat is required for reheating, and as a result, it is not very efficient. Therefore, in order to solve the problem, a method as shown in FIG. 7 of the prior art 2 is also used.

FIG. 7 is a block diagram of prior art 2. The configuration is almost the same as that of the prior art 1, and a part of the flow path is different. In addition, about the structure similar to the prior art 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted.
In prior art 2, it is necessary to prepare intermediate warm water 263 having a different temperature different from intermediate warm water 261 in a separate flow path in order to finally extract high temperature intermediate warm water. For this reason, the flow path configuration is slightly different from the prior art 1.
Hereinafter, the flow path configuration of the portion different from FIG. 5 in the first operating condition b11 of FIG. 7 will be described.
(3) The pipe 254 connected to the medium temperature water inlet 263a is connected to the pipe 231 via the flow path switching valve 207a, the pipe 231 is connected to the pipe 232 via the third heat exchanger 230, and the pipe 232 is It is connected to the piping 255 via the flow path switching valve 207b, and is connected to the intermediate hot water outlet 263b.

Next, the flow path in the second operating condition b12 in FIG. 8 will be described. This is obtained by switching the flow path switching valves 207a to 207d in FIG. However, since the flow path after switching is substantially the same as in FIG. 7, only the flow path configuration different from that in FIG. 7 will be described.
(3) The pipe 254 connected to the intermediate temperature water inlet 263a is connected to the pipe 211 via the flow path switching valve 207a, the pipe 211 is connected to the pipe 212 via the first heat exchanger 210, and the pipe 212 is It is connected to the pipe 255 via the flow path switching valve 207b, and is connected to the intermediate warm water outlet 263b.

Next, the first operating condition b11 of the adsorption heating / hot water supply apparatus in the configuration of FIG. 7 will be described.
In the first container 201, the high temperature heat source 260 of about 85 ° C. is passed through the first heat exchanger 210. When the high-temperature heat source 260 of about 85 ° C. is passed through the first heat exchanger 210, the adsorbent 205 in the state in which the refrigerant 206 provided in the first heat exchanger 210 is adsorbed heats from the first heat exchanger 210. obtain. Thereby, the refrigerant 206 adsorbed by the adsorbent 205 is desorbed.
At the same time, the medium temperature water 261 of about 40 ° C. is passed through the second heat exchanger 220. When medium temperature water 261 of about 40 ° C. is passed through the second heat exchanger 220, the second heat exchanger 220 removes heat from the first container 201 and condenses the refrigerant 206. As a result of this process, intermediate temperature water 261 of about 45 ° C. is obtained from the second heat exchanger 220.
Since the amount of refrigerant filled in the first container 201 is finite, the amount of refrigerant adsorbed by the adsorbent 205 decreases with time, and the amount of condensation also decreases accordingly. Therefore, it hardly changes after a certain period of time.
In the second container 202, medium temperature water 263 of about 25 ° C. is passed through the third heat exchanger 230. When medium temperature water 263 of about 25 ° C. is passed through the third heat exchanger 230, the adsorbent 205 in a state where the refrigerant 206 provided in the third heat exchanger 230 is desorbed absorbs the refrigerant 206 and generates heat. To do. By passing the heat through the third heat exchanger 230 through the intermediate temperature water 263 of about 25 ° C., the intermediate temperature water 263 takes away through the third heat exchanger 230.
At the same time, the low-temperature heat source 262 of about 10 ° C. is passed through the fourth heat exchanger 240. When the low temperature heat source 262 of about 10 ° C. is passed through the fourth heat exchanger 240, the refrigerant 206 in the second container 202 obtains heat from the low temperature heat source 262 of about 10 ° C. and evaporates. As a result of this process, intermediate temperature water 263 of about 30 ° C. is obtained from the third heat exchanger 230.
Since the amount of refrigerant filled in the second container 202 is finite, the amount of refrigerant adsorbed on the adsorbent 205 increases with time and adsorbent 205 is adsorbed, and the evaporation amount decreases accordingly. . Therefore, it hardly changes after a certain period of time.

Next, since a phase change does not occur after a certain time has passed as described above, the flow path switching valves 207a to 207d are switched to change the flow path as shown in FIG.
By connecting in this way, as the second operating condition b12, in the first container 201, adsorption occurs on the first heat exchanger 210 side including the adsorbent 205 in a state where the refrigerant 206 is desorbed, and the second heat exchange is performed. Evaporation occurs on the vessel 220 side. In the second container 202, desorption occurs on the side of the third heat exchanger 230 provided with the adsorbent 205 in the state where the refrigerant 206 is adsorbed, and condensation occurs on the side of the fourth heat exchanger 240. In this way, heat exchange becomes possible again.
By continuing the cycle in which the first operating condition b11 and the second operating condition b12 are switched over for a certain period of time, it is possible to stably obtain the medium temperature water 261 of about 45 ° C.
JP 2001-141328 A JP 2002-295925 A

According to this prior art 2, unlike the prior art 1, it becomes possible to obtain intermediate temperature water of about 45 ° C. Therefore, even when used for heating and hot water supply, the amount of heat required for reheating is small.
However, in order to obtain the intermediate temperature water of the target temperature, the conventional technique 1 uses the same intermediate temperature water in the condensation process and the adsorption process, whereas the conventional technique 2 prepares another flow path to provide the condensation process. Then, medium temperature water of about 40 ° C. is finally used, and medium temperature water of about two temperatures of about 25 ° C. is used in the adsorption process. This is because the temperature difference between the adsorption and evaporation processes needs to be small, and the temperature difference between the desorption and condensation processes needs to be large. Although medium temperature water of about 40 ° C. is required, if medium temperature water of about 40 ° C. is used for the adsorption process, adsorption hardly occurs. In other words, a new flow path must be provided in order to use medium-temperature water of about 40 ° C., resulting in an increase in equipment.
Further, as a result, the heat of adsorption is discarded, so the thermal efficiency (“output heat quantity / input heat quantity”) of the apparatus of the prior art 1 was COP 1.6 to 1.7, whereas the thermal efficiency of the apparatus. Significantly decreases to COP 1.0 or less. When the thermal efficiency is COP 1.0 or less, it is better to use the high-temperature heat source as it is. Therefore, it does not lead to energy saving.
That is, in the adsorption heating / hot water supply apparatus of the prior art 1, energy can be extracted from the heat source with high efficiency. However, since the output of the obtained temperature is as low as medium temperature water of about 35 ° C., it is used for heating and hot water supply. Needed to catch a significant amount. On the other hand, in the adsorption heating / hot water supply apparatus of the prior art 2, a high temperature output is obtained with the temperature of the intermediate warm water obtained being about 45 ° C., but the thermal efficiency of the apparatus is lowered, which does not lead to energy saving.

  The present invention has been made to solve the above-described problems, and aims to contribute to energy saving at the same time as taking out hot water at as high a temperature as possible.

In order to solve the above problems, the adsorption heating / hot water supply apparatus of the present invention has the following configuration.
(A) A first container and a second container that are kept in a vacuum so that the refrigerant evaporates at a low temperature, and a refrigerant such as water is provided, and an adsorbent is provided in the first container. The first heat exchanger provided, the second heat exchanger provided for evaporating and condensing the refrigerant in the first container, and the adsorbent provided in the second container In an adsorption heating / hot water supply apparatus having a third heat exchanger and a fourth heat exchanger provided for evaporating and condensing the refrigerant in the second container,
(1) By inputting a high-temperature heat source to the first heat exchanger and the third heat exchanger, desorption heat is obtained to vaporize the refrigerant, and the pressure in the first container and the second container The medium temperature water input to the second heat exchanger and the fourth heat exchanger obtains heat of condensation by condensing the vaporized refrigerant in the first container and the second container. 1 operating condition,
(2) By inputting a low-temperature heat source to the second heat exchanger, the heat of evaporation is obtained, the refrigerant is vaporized, the pressure in the first container is increased, and input to the first heat exchanger. The circulating intermediate warm water obtains adsorption heat, adsorbs the vaporized refrigerant in the first container, and inputs the circulating intermediate warm water obtained heat from the first heat exchanger to the fourth heat exchanger. Thus, further evaporating heat is obtained, the refrigerant is vaporized, the pressure in the second container is increased, and the vaporized refrigerant in the second container is adsorbed to the third heat exchanger. A second operating condition in which the input medium temperature water obtains heat of adsorption;
(3) It has an operation control means for switching the first operation condition and the second operation condition at a predetermined time with respect to the first container and the second container.

(B) In the adsorption heating / hot water supply apparatus of (A),
(1) It is provided with a third container and a fourth container in which the inside is kept in vacuum and an adsorbent in the third container so that a refrigerant such as water is put in and the refrigerant evaporates at a low temperature. The fifth heat exchanger, the sixth heat exchanger provided for evaporating and condensing the refrigerant in the third container, and the seventh heat provided with the adsorbent in the fourth container. An exchanger and an eighth heat exchanger provided to evaporate and condense the refrigerant in the fourth container,
(2) The operation control means is
(2-1) Simultaneously with the first operating condition, by inputting a low-temperature heat source to the sixth heat exchanger, the heat of evaporation is obtained, the refrigerant is vaporized, and the pressure in the third container is increased. The circulating hot water obtains adsorption heat in the fifth heat exchanger, adsorbs the vaporized refrigerant in the third container, and heats the eighth heat exchanger from the fifth heat exchanger. By inputting the obtained circulating hot water, further evaporating heat is obtained to vaporize the refrigerant, and the pressure in the fourth container is increased to adsorb the vaporized refrigerant in the fourth container. In the third operating condition, the medium temperature water input to the seventh heat exchanger obtains adsorption heat,
(2-2) Simultaneously with the second operating condition, by inputting a high-temperature heat source to the fifth heat exchanger and the seventh heat exchanger, desorption heat is obtained to vaporize the refrigerant, and the third By increasing the pressure in the container and the fourth container to condense the refrigerant vaporized in the third container and the fourth container, the sixth heat exchanger and the eighth heat exchanger The fourth operating condition in which the medium-temperature water input to obtain heat of adsorption,
(2-3) The third container and the fourth container are controlled so as to switch the third operating condition and the fourth operating condition at a predetermined time.

The effect of the adsorption heating / hot water supply apparatus having the above-described configuration will be described.
In the adsorption heating / hot water supply apparatus (A) of the present invention, the heat pumped from the high-temperature heat source and the low-temperature heat source is used as the heat source, and further, the heat of evaporation is obtained. It is possible to create hot water. Therefore, even when used for heating and hot water supply, the amount of heat required for reheating is small.
Further, in order to obtain intermediate temperature water of about 45 ° C. to 50 ° C., the intermediate temperature water used in the adsorption process uses a low-temperature heat source in the evaporation process of one container as in the prior art, but in the evaporation process of the other container, This can be ensured by reusing the medium-temperature water produced during the adsorption process of the container, so no new flow path equipment is required. In other words, by reusing the medium temperature water, the target temperature of about 45 ° C. to 50 ° C. can be created without preparing a new heat source.
And since medium temperature water of a relatively high temperature of 45 ° C. to 50 ° C. is obtained, less energy is required to replenish it for use in heating and hot water supply, so the system can be miniaturized. Although the theoretical efficiency is about COP1.3, which is slightly inferior to that of the prior art 1, the convenience is greatly improved in that medium temperature water having a high temperature can be obtained.

Furthermore, in the adsorption heating / hot water supply apparatus of (B), the heat pumped out from the high temperature heat source and the low temperature heat source is used as the heat source, and in order to obtain further evaporation heat, the desorption process and the adsorption process are provided separately, By repeating the process, there is no need to use a high-temperature heat source or a low-temperature heat source when switching the flow path, so that a high-temperature heat source or a low-temperature heat source can always be accepted. Moreover, since the output is always obtained from the same number of heat exchangers, the output can be stabilized.
Similarly, the output of circulating medium-temperature water is obtained by the adsorption heat obtained from the evaporation heat, and the circulation medium-temperature water is reused to further obtain the evaporation heat. Can be obtained as an output, and by repeating the above process, it is possible to finally produce medium-temperature water having a relatively high temperature of about 45 ° C. to 50 ° C. In addition, by repeating the above process, it is possible to stably take out the medium-temperature water.
Similarly, although the theoretical efficiency is somewhat inferior to that of the prior art 1, the convenience is greatly improved in that intermediate temperature water having a high temperature can be obtained. Furthermore, since the range in which the high-temperature heat source can be operated with higher efficiency than when directly using the high-temperature heat source is expanded, energy saving can be realized as a whole.

Hereinafter, the adsorption heating / hot water supply apparatus according to the present invention will be described in detail with reference to the drawings with specific embodiments.
FIG. 1 shows an embodiment of an adsorption heating / hot water supply apparatus according to the first aspect of the present invention.
The first container 1 and the second container 2 are pressure containers in which a liquid such as water (hereinafter referred to as a refrigerant 6) used as a refrigerant is placed, and the inside is kept in vacuum so that the refrigerant 6 is easily evaporated. is there.
A first heat exchanger 10 provided with an adsorbent such as silica gel (hereinafter referred to as adsorbent 5) is provided in the upper part of the first container 1, and a second heat exchanger is provided in the lower part of the first container 1. 20 is provided in a state of being immersed in the refrigerant 6.
A third heat exchanger 30 provided with the adsorbent 5 is provided in the upper part of the second container 2, and a fourth heat exchanger 40 is provided in the state of being immersed in the refrigerant 6 in the lower part of the second container 2. Yes.

Next, the flow path in the first operating condition a1 in FIG. 1 will be described.
(1) The pipe 50 connected to the high temperature heat source inlet 60 a is connected to the pipe 33 through the open valve 79, and the pipe 33 is connected to the pipe 31. One side of the pipe 31 is connected to the pipe 32 via the third heat exchanger 30, and the other side is connected to the pipe 11 via the open valve 71, and the pipe 11 is connected to the pipe 12 via the first heat exchanger 10. The pipe 12 is connected to the pipe 32 via the valve 72 in the open state, and the pipe 32 is connected to the pipe 34. The pipe 34 is connected to the pipe 51 through the valve 80 and to the high-temperature heat source outlet 60b.
(2) The pipe 52 connected to the medium-temperature water inlet 61a is connected to the pipe 54, and the pipe 54 is connected to the pipe 56 via the valve 81 in the open state. The pipe 56 is connected to the pipe 41. One side of the pipe 41 is connected to the pipe 42 via the fourth heat exchanger 40, the other side is connected to the pipe 21 via the open valve 73, and the pipe 21 is connected to the pipe 22 via the second heat exchanger 20. Connected. The pipe 22 is connected to the pipe 42 via an open valve 74. The pipe 42 is connected to the pipe 57. The pipe 57 is connected to the pipe 55 via the valve 82 in the open state, and the pipe 55 is connected to the pipe 53 and to the intermediate temperature water outlet 61b.
By connecting in this way, the first heat exchanger 10 and the third heat exchanger 30 are passed through a high temperature heat source 60 of about 85 ° C., and the second heat exchanger 20 and the fourth heat exchanger 40 are medium temperature. Water (changes to about 20 ° C to 50 ° C depending on the stage. At the start of operation, the temperature is the same as that of tap water, but when entering the steady operation, the temperature rises to a certain extent and stabilizes. It is possible to pass the temperature of the warm water (referred to as the medium warm water 61 of about ~ ° C.).

Next, the flow path under the second operating condition a2 in FIG. 2 will be described. This is a switch of the valves 71 to 82 in FIG.
(1) The pipe 52 connected to the intermediate warm water inlet 61 a is connected to the pipe 58 via the open valve 77, and the pipe 58 is connected to the pipe 31. The pipe 31 is connected to the pipe 32 via the third heat exchanger 30, and the pipe 32 is connected to the pipe 59. The pipe 59 is connected to the pipe 53 via the valve 78 in the open state, and is connected to the intermediate temperature water outlet 61b.
(2) The pipe 25 connected to the low-temperature heat source inlet 62 a is connected to the pipe 23 via the open valve 83, and the pipe 23 is connected to the pipe 21. The pipe 21 is connected to the pipe 22 via the second heat exchanger 20, and the pipe 22 is connected to the pipe 24. The pipe 24 is connected to the pipe 26 through an open valve 84, and is connected to the low-temperature heat source outlet 62b.
(3) The pipe 12 is connected to the pipe 15 via the pipe 14 and the circulation pump 70. The circulation pump 70 can circulate fluid from the pipe 14 to the pipe 15. The pipe 15 is connected to the pipe 43 via an open valve 75, the pipe 43 is connected to the pipe 41, and the pipe 41 is connected to the pipe 42 via the fourth heat exchanger 40. The pipe 42 is connected to the pipe 44, and the pipe 44 is connected to the pipe 13 through an open valve 76. The pipe 13 is connected to the pipe 11, and the pipe 11 is connected to the pipe 12 via the first heat exchanger 10.
By connecting in this way, the first heat exchanger 10 and the fourth heat exchanger 40 are connected in a closed circuit, and the circulating hot water 63 is circulated. (The circulating intermediate warm water 63 referred to here is basically the same as the intermediate warm water 61, but is referred to as the circulating intermediate warm water 63 for convenience because it is used after being circulated in the temporarily closed circuit.) The intermediate heat water 61 can be taken out from the intermediate heat water outlet 61b through the second heat exchanger 20 through the low temperature heat source 62 at about 10 ° C., the third heat exchanger 30 through the intermediate temperature water 61, and the intermediate heat water outlet 61b.

In the above configuration, the adsorbent 5 provided in the first heat exchanger 10 and the third heat exchanger 30 in the state in which the refrigerant 6 is adsorbed is a refrigerant adsorbed by flowing a high-temperature heat medium from the outside. 6 can be eliminated. On the other hand, by flowing a low-temperature heat medium through the second heat exchanger 20 and the fourth heat exchanger 40 at the same time, the refrigerant 6 in each container can be condensed.
In addition, the adsorbent 5 provided in the first heat exchanger 10 and the third heat exchanger 30 in a state where the refrigerant 6 has been desorbed can adsorb the refrigerant 6 by flowing a low-temperature heat medium from the outside. It can be carried out. On the other hand, at the same time, by flowing a low-temperature heat medium from the outside to the second heat exchanger 20 and the fourth heat exchanger 40, the refrigerant 6 in each container can be evaporated.
Generally, it is desirable that the temperature difference between the heat exchanger to be desorbed and the heat exchanger to be condensed is large in the desorption-condensation process, and the heat exchanger to be evaporated and the heat exchange to be adsorbed in the evaporation-adsorption process. It is desirable that the temperature difference of the vessel is small.

Next, the first operating condition a1 in FIG. 1 will be described.
In the first container 1, a high temperature heat source 60 of about 85 ° C. is passed through the first heat exchanger 10. When the high-temperature heat source 60 of about 85 ° C. is passed through the first heat exchanger 10, the adsorbent 5 in the state in which the refrigerant 6 provided in the first heat exchanger 10 is adsorbed receives heat from the first heat exchanger 10. obtain. Thereby, the refrigerant 6 adsorbed by the adsorbent 5 is desorbed.
At the same time, the warm water 61 of about 40 ° C. is passed through the second heat exchanger 20. When medium temperature water 61 of about 40 ° C. is passed through the second heat exchanger 20, the second heat exchanger 20 takes heat from the first container 1 and condenses the refrigerant 6. As a result, intermediate temperature water 61 of about 45 ° C. is obtained from the second heat exchanger 20.
In addition, since the refrigerant | coolant amount with which the 1st container 1 was filled is finite, the refrigerant | coolant amount adsorb | sucked by the adsorption agent 5 reduces with time, and the condensing amount also reduces with this. Therefore, it hardly changes after a certain period of time.
Next, also in the second container 2, the high temperature heat source 60 of about 85 ° C. is passed through the third heat exchanger 30. When the high temperature heat source 60 of about 85 ° C. is passed through the third heat exchanger 30, the adsorbent 5 in the state in which the refrigerant 6 provided in the third heat exchanger 30 is adsorbed heats from the third heat exchanger 30. obtain. Thereby, the refrigerant 6 adsorbed by the adsorbent 5 is desorbed.
At the same time, the warm water 61 of about 40 ° C. is passed through the fourth heat exchanger 40. When medium temperature water 61 of about 40 ° C. is passed through the fourth heat exchanger 40, the fourth heat exchanger 40 takes heat from the second container 2 and condenses the refrigerant 6. As a result, intermediate temperature water 61 of about 45 ° C. is obtained from the fourth heat exchanger 40.
Since the amount of refrigerant charged in the second container 2 is finite, the amount of refrigerant adsorbed on the adsorbent 5 decreases with time, and the amount of condensation also decreases accordingly. Therefore, it hardly changes after a certain period of time.

Next, the second operating condition a2 in FIG. 2 will be described. This is because the phase change does not occur after a lapse of a certain time as described above, so that the flow path is established by closing the valves 71, 72, 73, 74, 79, 80, 81, 82 and opening the valves 75, 76, 77, 78. Is switched. By connecting in this way, the second operating condition a2 after switching the flow path is as follows.
In the first container 1, the circulating hot water 63 at about 25 ° C. is passed through the first heat exchanger 10. When circulating hot water 63 is passed through the first heat exchanger 10, the adsorbent 5 in a state where the refrigerant 6 provided in the first heat exchanger 10 is desorbed adsorbs the refrigerant 6. At the same time, a low-temperature heat source 62 of about 10 ° C. is passed through the second heat exchanger 20. When the low temperature heat source 62 of about 10 ° C. is passed through the second heat exchanger 20, the second heat exchanger 20 gives heat to the refrigerant 6 to evaporate the refrigerant 6. As a result of this process, the circulating hot water 63 having a temperature of about 25 ° C. leading to the first heat exchanger 10 obtains a temperature and reaches about 30 ° C. when leaving the first heat exchanger 10. In addition, since the refrigerant | coolant amount with which the 1st container 1 was filled is finite, the refrigerant | coolant amount adsorb | sucked by the adsorption agent 5 reduces with time, and the amount of condensation also reduces with this. Therefore, it hardly changes after a certain period of time.

Next, in the second container 2, the warm water 61 of about 40 ° C. is passed through the third heat exchanger 30. When medium temperature water 61 of about 40 ° C. is passed through the third heat exchanger 30, the adsorbent 5 in a state where the refrigerant 6 provided in the third heat exchanger 30 is desorbed adsorbs the refrigerant 6, and is about 50 ° C. It becomes.
At the same time, circulating hot water 63 of about 30 ° C. from the first heat exchanger 10 is passed through the fourth heat exchanger 40. When circulating medium hot water 63 at about 30 ° C. is passed through the fourth heat exchanger 40, the fourth heat exchanger 40 heats the refrigerant 6 to evaporate the refrigerant 6. As a result of this process, heat continues to be discharged to the third heat exchanger 30, and the intermediate temperature water 61 obtains heat.
Since the amount of refrigerant charged in the second container 2 is finite, the amount of refrigerant adsorbed on the adsorbent 5 decreases with time, and the amount of condensation also decreases accordingly. Therefore, it hardly changes after a certain period of time. Then, by continuing a cycle in which the first operating condition a1 and the second operating condition a2 are switched over at a constant time, intermediate temperature water 61 of about 45 ° C. to 50 ° C., which is a relatively high temperature, is obtained.

Therefore, in the adsorption heating / hot water supply apparatus having the above-described configuration, the first container 1 and the second container 2 in which the refrigerant 6 is put and the inside is kept in vacuum so that the refrigerant 6 is easily evaporated, and the first container 1 A first heat exchanger 10 provided with the adsorbent 5 therein, a second heat exchanger 20 provided for evaporating and condensing the refrigerant 6 in the first container 1, and a second A third heat exchanger 30 provided with the adsorbent 5 in the container 2 and a fourth heat exchanger 40 provided to evaporate and condense the refrigerant 6 in the second container 2. Have
(1) Desorption heat is obtained by inputting a high-temperature heat source 60 of about 85 ° C. to the first heat exchanger 10 and the third heat exchanger 30, and the second heat exchanger 20 and the fourth heat exchanger 40 are obtained. The first operating condition a1 for obtaining the heat of adsorption and the heat of the warm water 61 by inputting the warm water 61 to
(2) Evaporation heat is obtained by inputting a low temperature heat source 62 of about 10 ° C. to the second heat exchanger 20, and adsorption heat is obtained by inputting circulating hot water 63 to the first heat exchanger 10. Then, the circulating hot water 63 obtains heat, and the circulating hot water 63 obtained from the first heat exchanger 10 is input to the fourth heat exchanger 40, so that the evaporating heat is further obtained and the circulating hot water 63 is obtained. The second operating condition a2 in which heat is obtained and the intermediate temperature water 61 is input to the third heat exchanger 30 to obtain heat of adsorption and the intermediate temperature water 61 obtains heat.

(3) Since it has the operation control means which switches the 1st operation condition a1 and the 2nd operation condition a2 with a fixed time to the 1st container 1 and the 2nd container 2, it is 45 ° C-50 ° C It is possible to produce intermediate temperature water 61 having a relatively high temperature.
As a result, even when used for heating or hot water supply, there is an excellent effect that less heat is required for reheating.
Further, unlike the prior art 2, in order to obtain intermediate temperature water of about 45 ° C. to 50 ° C., the intermediate temperature water used in the adsorption process uses a low-temperature heat source in the evaporation process of one container as in the prior art. In the evaporation process of the container, since it can be ensured by reusing the medium temperature water produced in the adsorption process of one container, a new heat source is not required. That is, by reusing the medium temperature water, the target temperature of about 45 ° C. to 50 ° C. can be created without preparing a new heat source.
And since medium temperature water of a relatively high temperature of 45 ° C. to 50 ° C. is obtained, less energy is required to replenish it for use in heating and hot water supply, so the system can be miniaturized. Although the theoretical efficiency is about COP1.3, which is slightly inferior to that of the prior art 1, the convenience is greatly improved in that medium temperature water having a high temperature can be obtained.

However, in the said apparatus, the state which does not require a high temperature heat source and a low temperature heat source is made, and the number of the heat exchangers which let medium temperature water pass also changes with operation states. Therefore, the system has a slightly unbalanced point. Then, the Example of the adsorption | suction type heating and hot-water supply apparatus of the invention which concerns on Claim 2 which improved this point next is described.
3 and 4 are schematic views showing the configuration of the second embodiment.
Each of the first container 103 to the fourth container 102 is a pressure container in which a liquid such as water (hereinafter referred to as a refrigerant 106) used as a refrigerant is placed, and the inside is kept in vacuum so that the refrigerant 106 is easily evaporated. is there.
A first heat exchanger 115 provided with an adsorbent such as silica gel (hereinafter referred to as adsorbent 105) is provided in the upper part of the first container 103, and a second heat exchanger is provided in the lower part of the first container 103. 125 is provided so as to be immersed in the refrigerant 106.
A third heat exchanger 110 having an adsorbent 105 is provided in the upper part of the second container 101, and a fourth heat exchanger 120 is provided in a state of being immersed in the refrigerant 106 in the lower part of the second container 101. ing.
A fifth heat exchanger 135 having an adsorbent 105 is provided in the upper part of the third container 104, and a sixth heat exchanger 145 is provided in the state of being immersed in the refrigerant 106 in the lower part of the third container 104. Yes.
A seventh heat exchanger 130 having an adsorbent 105 is provided in the upper part of the fourth container 102, and an eighth heat exchanger 140 is provided in the lower part of the fourth container 102 so as to be immersed in the refrigerant 106. Yes.

Next, the flow paths in the first operating condition c1 and the third operating condition c3 in FIG. 3 will be described.
(1) The pipe 150 connected to the high temperature heat source inlet 160a is connected to the pipe 111 via the flow path switching valve 107a, the pipe 111 is connected to the pipe 112 via the third heat exchanger 110, and the pipe 112 is It is connected to the pipe 151 via the flow path switching valve 107b and connected to the high temperature heat source outlet 160b.
(2) The pipe 150 connected to the high-temperature heat source inlet 160a branches to the pipe 118 and is connected to the pipe 116 via the flow path switching valve 107e. The pipe 116 is piped via the first heat exchanger 115. 117, the pipe 117 is connected to the pipe 119 via the flow path switching valve 107f, the pipe 119 joins and is connected to the pipe 151, and is connected to the high temperature heat source outlet 160b.
(3) The pipe 152 connected to the intermediate warm water inlet 161a is connected to the pipe 131 via the flow path switching valve 107a, the pipe 131 is connected to the pipe 132 via the seventh heat exchanger 130, and the pipe 132 is It is connected to the pipe 153 via the flow path switching valve 107b, and is connected to the intermediate warm water outlet 161b.
(4) The pipe 152 connected to the medium temperature water inlet 161a branches to the pipe 123 and is connected to the pipe 121 via the flow path switching valve 107c. The pipe 121 is connected to the pipe 122 via the fourth heat exchanger 120. The pipe 122 is connected to the pipe 124 via the flow path switching valve 107d, and the pipe 124 is connected to the pipe 153 and connected to the medium hot water outlet 161b.

(5) The pipe 152 connected to the medium temperature water inlet 161a branches to the pipe 128 and is connected to the pipe 126 via the flow path switching valve 107g, and the pipe 126 is connected to the pipe 127 via the second heat exchanger 125. The pipe 127 is connected to the pipe 129 via the flow path switching valve 107h, and the pipe 129 is connected to the pipe 153 and connected to the intermediate hot water outlet 161b.
(6) The pipe 154 connected to the low-temperature heat source inlet 162a is connected to the pipe 146 via the flow path switching valve 107g, the pipe 146 is connected to the pipe 147 via the sixth heat exchanger 145, and the pipe 147 is It is connected to the pipe 155 via the flow path switching valve 107h and connected to the low temperature heat source outlet 162b.
(7) The pipe 137 is connected to the pipe 139 via the flow path switching valve 107f, and the pipe 139 is connected to the pipe 143 via the circulation pump 170. With this circulation pump 170, the fluid can be circulated from the pipe 139 to the pipe 143. The pipe 143 is connected to the pipe 141 via the flow path switching valve 107c, and the pipe 141 is connected to the pipe 142 via the eighth heat exchanger 140. The pipe 142 is connected to the pipe 138 via the flow path switching valve 107d. The pipe 138 is connected to the pipe 136 via the flow path switching valve 107e, and the pipe 136 is connected to the pipe 137 via the fifth heat exchanger 135.
By connecting in this way, the fifth heat exchanger 135 and the eighth heat exchanger 140 are connected in a closed circuit, and the circulating hot water 163 is circulated. The first heat exchanger 115 and the third heat exchanger 110 are passed through a high-temperature heat source 160 at about 85 ° C., the sixth heat exchanger 145 is passed through a low-temperature heat source 162 at about 10 ° C., the second heat exchanger 125, The intermediate heat water 161 can be taken out from the fourth heat exchanger 120 and the seventh heat exchanger 130 through the intermediate temperature water outlet 161b.

Next, the flow paths in the second operating condition c2 and the fourth operating condition c4 in FIG. 4 will be described. This is obtained by switching the flow path switching valves 107a to 107h in FIG.
(1) The pipe 150 connected to the high-temperature heat source inlet 160a is connected to the pipe 131 via the flow path switching valve 107a, the pipe 131 is connected to the pipe 132 via the seventh heat exchanger 130, and the pipe 132 is It is connected to the pipe 151 via the flow path switching valve 107b and connected to the high temperature heat source outlet 160b.
(2) The pipe 150 connected to the high-temperature heat source inlet 160a branches to the pipe 118 and is connected to the pipe 136 via the flow path switching valve 107e, and the pipe 136 is piped via the fifth heat exchanger 135. 137, the pipe 137 is connected to the pipe 119 via the flow path switching valve 107f, the pipe 119 joins and is connected to the pipe 151, and is connected to the high-temperature heat source outlet 160b.
(3) The pipe 152 connected to the intermediate temperature water inlet 161a is connected to the pipe 111 via the flow path switching valve 107a, the pipe 111 is connected to the pipe 112 via the third heat exchanger 110, and the pipe 112 is It is connected to the pipe 153 via the flow path switching valve 107b, and is connected to the intermediate warm water outlet 161b.
(4) The pipe 152 connected to the intermediate temperature water inlet 161a branches to the pipe 123 and is connected to the pipe 141 via the flow path switching valve 107c. The pipe 141 is connected to the pipe 142 via the eighth heat exchanger 140. The pipe 142 is connected to the pipe 124 via the flow path switching valve 107d, and the pipe 124 is connected to the pipe 153 and connected to the intermediate hot water outlet 161b.

(5) The pipe 152 connected to the intermediate temperature water inlet 161a branches to the pipe 128 and is connected to the pipe 146 via the flow path switching valve 107g, and the pipe 146 is connected to the pipe 147 via the sixth heat exchanger 145. The pipe 147 is connected to the pipe 129 via the flow path switching valve 107h. The pipe 129 is connected to the pipe 153 and connected to the medium-temperature water outlet 161b.
(6) The pipe 154 connected to the low temperature heat source inlet 162a is connected to the pipe 126 via the flow path switching valve 107g, the pipe 126 is connected to the pipe 127 via the second heat exchanger 125, and the pipe 127 is It is connected to the pipe 155 via the flow path switching valve 107h and connected to the low temperature heat source outlet 162b.
(7) The pipe 117 is connected to the pipe 139 via the flow path switching valve 107f, and the pipe 139 is connected to the pipe 143 via the circulation pump 170. With this circulation pump 170, the fluid can be circulated from the pipe 139 to the pipe 143. The pipe 143 is connected to the pipe 121 via the flow path switching valve 107 c, and the pipe 121 is connected to the pipe 122 via the fourth heat exchanger 120. The pipe 122 is connected to the pipe 138 via the flow path switching valve 107d. The pipe 138 is connected to the pipe 116 via the flow path switching valve 107e, and the pipe 116 is connected to the pipe 117 via the first heat exchanger 115.
By connecting in this way, the first heat exchanger 115 and the fourth heat exchanger 120 are connected as a closed circuit, and the circulating hot water 163 is circulated. Further, the fifth heat exchanger 135 and the seventh heat exchanger 130 are passed through a high temperature heat source 160 of about 85 ° C., the second heat exchanger 125 is passed through a low temperature heat source 162 of about 10 ° C., and the third heat exchanger 110, The middle temperature water 161 can be taken out from the sixth temperature heat exchanger 145 and the eighth heat exchanger 140 through the middle temperature water outlet 161b through the middle temperature water 161.

In the above configuration, the adsorbent 105 provided in the first heat exchanger 115, the third heat exchanger 110, the fifth heat exchanger 135, and the seventh heat exchanger 130 in a state where the refrigerant 106 is adsorbed, By flowing a high-temperature heat medium from the outside, the adsorbed refrigerant 106 can be desorbed. Meanwhile, at the same time, the refrigerant 106 in each container is condensed by flowing a low-temperature heat medium through the second heat exchanger 125, the fourth heat exchanger 120, the sixth heat exchanger 145, and the eighth heat exchanger 140. Can be made.
In addition, the adsorbent 105 provided in the first heat exchanger 115, the third heat exchanger 110, the fifth heat exchanger 135, and the seventh heat exchanger 130 in a state where the refrigerant 106 has been desorbed is The refrigerant 106 can be adsorbed by flowing a low-temperature heat medium from the bottom. On the other hand, a low-temperature heat medium is allowed to flow from the outside to the second heat exchanger 125, the fourth heat exchanger 120, the sixth heat exchanger 145, and the eighth heat exchanger 140 in that state, so that the refrigerant in each container 106 can be evaporated.
In addition, it is desirable that the temperature difference between the heat exchanger to be desorbed and the heat exchanger to be condensed is larger in the desorption and condensation processes, and the temperature of the heat exchanger to be evaporated and the heat exchanger to be adsorbed in the evaporation and adsorption processes The smaller the difference, the better.

Next, the first operating condition c1 and the third operating condition c3 of the adsorption heating / hot water supply apparatus having the configuration shown in FIG. 3 will be described.
Under the first operating condition c1, heat exchange is performed according to the following flow.
First, in the first container 103, a high-temperature heat source 160 of about 85 ° C. is passed through the first heat exchanger 115. When the high-temperature heat source 160 of about 85 ° C. is passed through the first heat exchanger 115, the adsorbent 105 in the state in which the refrigerant 106 provided in the first heat exchanger 115 is adsorbed receives heat from the first heat exchanger 115. obtain. Thereby, the refrigerant 106 adsorbed by the adsorbent 105 is desorbed.
At the same time, the medium temperature water 161 of about 40 ° C. is passed through the second heat exchanger 125. When medium temperature water 161 of about 40 ° C. is passed through the second heat exchanger 125, the second heat exchanger 125 takes heat from the inside of the first container 103 and condenses the refrigerant 106. As a result of this process, intermediate temperature water 161 of about 45 ° C. is obtained from the second heat exchanger 125.
Since the amount of refrigerant filled in the first container 103 is finite, the amount of refrigerant adsorbed on the adsorbent 105 decreases with time, and the amount of condensation also decreases accordingly. Therefore, it hardly changes after a certain period of time.

In the third container 104, the circulating hot water 163 at about 25 ° C. that circulates with the eighth heat exchanger 140 is passed through the fifth heat exchanger 135. When circulating intermediate hot water 163 at about 25 ° C. is passed through the fifth heat exchanger 135, the adsorbent 105 in a state where the refrigerant 106 provided in the fifth heat exchanger 135 is desorbed adsorbs the refrigerant 106 and generates heat. Is generated. Then, by passing the circulating intermediate warm water 163 at about 25 ° C. through the fifth heat exchanger 135, the heat generated by the circulating intermediate warm water 163 is taken away via the fifth heat exchanger 135.
At the same time, the low-temperature heat source 162 of about 10 ° C. is passed through the sixth heat exchanger 145. When the low temperature heat source 162 at about 10 ° C. is passed through the sixth heat exchanger 145, the refrigerant 106 in the third container 104 obtains heat from the low temperature heat source 162 at about 10 ° C. and evaporates. As a result of the process, circulating hot water 163 of about 30 ° C. is obtained from the fifth heat exchanger 135.
Since the amount of refrigerant filled in the third container 104 is finite, the amount of refrigerant that can be adsorbed on the adsorbent 105 decreases with time, and the evaporation amount also decreases accordingly. Therefore, it hardly changes after a certain period of time.

Under the third operating condition c3, heat exchange is performed according to the following flow.
First, in the second container 101, the high temperature heat source 160 of about 85 ° C. is passed through the third heat exchanger 110. When the high-temperature heat source 160 of about 85 ° C. is passed through the third heat exchanger 110, the adsorbent 105 in a state where the refrigerant 106 provided in the third heat exchanger 110 is adsorbed heats from the third heat exchanger 110. obtain. Thereby, the refrigerant 106 adsorbed by the adsorbent 105 is desorbed.
At the same time, medium temperature water 161 of about 40 ° C. is passed through the fourth heat exchanger 120. When medium-temperature water 161 of about 40 ° C. is passed through the fourth heat exchanger 120, the fourth heat exchanger 120 removes heat from the second container 101 and condenses the refrigerant 106. As a result of this process, intermediate temperature water 161 of about 45 ° C. is obtained from the fourth heat exchanger 120.
Since the amount of refrigerant filled in the second container 101 is finite, the amount of refrigerant adsorbed on the adsorbent 105 decreases with time, and the amount of condensation also decreases accordingly. Therefore, it hardly changes after a certain period of time.

Next, in the fourth container 102, the medium temperature water 161 of about 40 ° C. is passed through the seventh heat exchanger 130. When medium temperature water 161 of about 40 ° C. is passed through the seventh heat exchanger 130, the adsorbent 105 in a state where the refrigerant 106 provided in the seventh heat exchanger 130 is desorbed absorbs the refrigerant 106 and generates heat. To do.
At the same time, the circulating medium hot water 163 at about 30 ° C. obtained by the fifth heat exchanger 135 is passed through the eighth heat exchanger 140. When circulating medium hot water 163 at about 30 ° C. is passed through the eighth heat exchanger 140, the refrigerant 106 in the fourth container 102 gains heat from the circulating medium hot water 163 and evaporates. As a result, intermediate temperature water 161 of about 50 ° C. is obtained from the seventh heat exchanger 130, and circulating intermediate warm water 163 of about 25 ° C. is obtained from the eighth heat exchanger 140.
Since the amount of refrigerant charged in the fourth container 102 is finite, the amount of refrigerant that can be adsorbed on the adsorbent 105 decreases with time, and the evaporation amount also decreases accordingly. Therefore, it hardly changes after a certain period of time.
The first operating condition c1 and the third operating condition c3 described above are performed simultaneously, and heat exchange is sequentially performed.

Next, the second operating condition c2 and the fourth operating condition c4 after the flow path switching shown in FIG. 4 will be described below.
Under the second operating condition c2, heat exchange is performed according to the following flow.
First, in the first vessel 103, when the circulating hot water 163 at about 25 ° C. circulating with the fourth heat exchanger 120 is passed through the first heat exchanger 115, the refrigerant 106 provided in the first heat exchanger 115 is removed. The separated adsorbent 105 adsorbs the refrigerant 106 and generates heat. Then, by passing the circulating intermediate hot water 163 at about 25 ° C. through the first heat exchanger 115, the heat generated by the circulating intermediate hot water 163 is taken away via the first heat exchanger 115.
At the same time, the low-temperature heat source 162 of about 10 ° C. is passed through the second heat exchanger 125. When the low-temperature heat source 162 at about 10 ° C. is passed through the second heat exchanger 125, the refrigerant 106 in the first container 103 obtains heat from the low-temperature heat source 162 at about 10 ° C. and evaporates. As a result of this process, circulating hot water 163 at about 30 ° C. is obtained from the first heat exchanger 115.
Since the amount of refrigerant filled in the first container 103 is finite, the amount of refrigerant that can be adsorbed by the adsorbent 105 decreases with time, and the evaporation amount also decreases accordingly. Therefore, it hardly changes after a certain period of time.

In the third container 104, the high temperature heat source 160 of about 85 ° C. is passed through the fifth heat exchanger 135. When the high-temperature heat source 160 of about 85 ° C. is passed through the fifth heat exchanger 135, the adsorbent 105 in the state in which the refrigerant 106 provided in the fifth heat exchanger 135 is adsorbed receives heat from the fifth heat exchanger 135. obtain. Thereby, the refrigerant 106 adsorbed by the adsorbent 105 is desorbed.
At the same time, medium temperature water 161 of about 40 ° C. is passed through the sixth heat exchanger 145. When medium temperature water 161 of about 40 ° C. is passed through the sixth heat exchanger 145, the sixth heat exchanger 145 takes heat from the inside of the third container 104 and condenses the refrigerant 106. As a result of this process, intermediate temperature water 161 of about 45 ° C. is obtained from the sixth heat exchanger 145.
Since the amount of refrigerant charged in the third container 104 is finite, the amount of refrigerant adsorbed on the adsorbent 105 decreases with time, and the amount of condensation decreases accordingly. Therefore, it hardly changes after a certain time.

Under the fourth operating condition c4, heat exchange is performed according to the following flow.
First, in the second container 101, medium-temperature water 161 of about 40 ° C. is passed through the third heat exchanger 110. When medium temperature water 161 of about 40 ° C. is passed through the third heat exchanger 110, the adsorbent 105 in a state where the refrigerant 106 provided in the third heat exchanger 110 is desorbed absorbs the refrigerant 106 and generates heat. To do.
At the same time, the circulating hot water 163 of about 30 ° C. obtained in the first heat exchanger 115 is passed through the fourth heat exchanger 120. When the circulating hot water 163 at about 30 ° C. is passed through the fourth heat exchanger 120, the refrigerant 106 in the second container 101 evaporates by obtaining heat from the circulating hot water 163. As a result of this process, the middle heat water 161 of about 50 ° C. is obtained from the third heat exchanger 110, and the circulating medium hot water 163 of about 25 ° C. is obtained from the fourth heat exchanger 120.
Since the amount of refrigerant charged in the second container 101 is finite, the amount of refrigerant that can be adsorbed on the adsorbent 105 decreases with time, and the evaporation amount also decreases accordingly. Therefore, it hardly changes after a certain period of time.

In the fourth container 102, a high-temperature heat source 160 of about 85 ° C. is passed through the seventh heat exchanger 130. When the high-temperature heat source 160 of about 85 ° C. is passed through the seventh heat exchanger 130, the adsorbent 105 in the state in which the refrigerant 106 provided in the seventh heat exchanger 130 is adsorbed receives heat from the seventh heat exchanger 130. obtain. Thereby, the refrigerant 106 adsorbed by the adsorbent 105 is desorbed.
At the same time, the middle temperature water 161 of about 40 ° C. is passed through the eighth heat exchanger 140. When medium-temperature water 161 of about 40 ° C. is passed through the eighth heat exchanger 140, the eighth heat exchanger 140 takes heat from the fourth container 102 and condenses the refrigerant 106. As a result of this process, intermediate temperature water 161 of about 45 ° C. is obtained from the eighth heat exchanger 140.
Since the amount of refrigerant filled in the fourth container 102 is finite, the amount of refrigerant adsorbed on the adsorbent 105 decreases with time, and the amount of condensation decreases accordingly. Therefore, it hardly changes after a certain period of time.
The second operating condition c2 and the fourth operating condition c4 described above are performed simultaneously, and heat exchange is sequentially performed.
And by continuing the cycle which switches the 1st driving condition c1 and the 3rd driving condition c3, and the 2nd driving condition c2 and the 4th driving condition c4 at fixed time, it is 45 to 50 degrees C which is comparatively high temperature. Medium temperature water 161 of about 0 ° C. is obtained.

As mentioned above, although the Example of the adsorption | suction type heating and hot water supply apparatus of this invention was described, this invention is not limited to the above Example, A various change is possible in the range which does not deviate from the meaning.
For example, in the above embodiment, silica gel is used as the adsorbent, but the present invention is not limited to this, and activated carbon, zeolite, alumina oxide or the like may be used.
Moreover, in the said Example, the container by which the inside was equipped with the low pressure is equipped with one heat exchanger which equipped with the adsorbent in the upper part in the container, and the other heat exchanger in the lower part in the container. However, the present container is not particularly integrated, but may be of the same system, so that it does not preclude a system in which a heat exchanger is provided in each separate tank as seen in the past.
Further, in the above embodiment, the temperature is set for each of the high-temperature heat source, the low-temperature heat source, and the medium-temperature water, but this is merely a representative numerical value quoted from the form normally used for convenience of explanation, In addition to being actually affected by the use conditions and environment, it does not preclude setting other temperatures at which desorption-condensation and evaporation-adsorption can be performed.

in this way,
(A) A first container 103 and a second container 101 whose interiors are kept in a vacuum so that the refrigerant 106 evaporates at a low temperature is inserted, and an adsorbent 105 is provided in the first container 103. A first heat exchanger 115 provided in a heated state, a second heat exchanger 125 provided for evaporating and condensing the refrigerant 106 in the first container 103, and an adsorbent 105 in the second container 101. An adsorption heating / hot water supply apparatus having a third heat exchanger 110 provided in a state of being provided with a fourth heat exchanger 120 provided to evaporate and condense the refrigerant 106 in the second container 101. In
(1) By inputting a high-temperature heat source 160 of about 85 ° C. to the first heat exchanger 115 and the third heat exchanger 110, the desorption heat is obtained and the refrigerant 106 is vaporized. Medium temperature water input to the second heat exchanger 125 and the fourth heat exchanger 120 by increasing the pressure in the container 101 and condensing the vaporized refrigerant 106 in the first container 103 and the second container 101. A first operating condition c1 in which 161 obtains heat of condensation;
(2) By inputting a low temperature heat source 162 of about 10 ° C. to the second heat exchanger 125, the heat of evaporation is obtained, the refrigerant 106 is vaporized, the pressure in the first container 103 is increased, and the first heat The circulating hot water 163 input to the exchanger 115 obtains heat of adsorption, adsorbs the vaporized refrigerant 106 in the first container 103, and obtains heat from the first heat exchanger 115 in the fourth heat exchanger 120. By inputting the intermediate temperature water 163, the heat of evaporation is further obtained to vaporize the refrigerant 106, the pressure in the second container 101 is increased, and the vaporized refrigerant 106 in the second container 101 is adsorbed, thereby The second operating condition c2 in which the intermediate temperature water 161 input to the three heat exchanger 110 obtains the heat of adsorption;
(3) An adsorption heating / hot water supply device having operation control means for switching the first operation condition c1 and the second operation condition c2 for a first time with respect to the first container 103 and the second container 101; ,

(B) (A) In the adsorption heating / hot water supply apparatus of claim 1,
(1) A third container 104 and a fourth container 102 in which the inside is kept in vacuum so that the refrigerant 106 such as water is put and the refrigerant 106 evaporates at a low temperature, and an adsorbent 105 is provided in the third container 104. A fifth heat exchanger 135 provided in a heated state, a sixth heat exchanger 145 provided for evaporating and condensing the refrigerant 106 in the third container 104, and an adsorbent 105 in the fourth container 102. A seventh heat exchanger 130 provided in a state provided with an eighth heat exchanger 140 provided for evaporating and condensing the refrigerant 106 in the fourth container 102,
(2) The operation control means is
(2-1) Simultaneously with the first operating condition c1, by inputting a low temperature heat source 162 of about 10 ° C. to the sixth heat exchanger 145, evaporation heat is obtained, the refrigerant 106 is vaporized, and the inside of the third container 104 The circulating hot water 163 obtains adsorption heat in the fifth heat exchanger 135, adsorbs the vaporized refrigerant 106 in the third container 104, and performs fifth heat exchange in the eighth heat exchanger 140. By inputting the circulating hot water 163 that has obtained heat from the vessel 135, the refrigerant 106 is vaporized by further obtaining evaporation heat, the pressure in the fourth container 102 is increased, and the vaporized refrigerant in the fourth container 102 is obtained. 106, the third operating condition c3 in which the intermediate temperature water 161 input to the seventh heat exchanger 130 obtains the heat of adsorption is obtained.
(2-2) Simultaneously with the second operating condition c2, by inputting the high-temperature heat source 160 at about 85 ° C. to the fifth heat exchanger 135 and the seventh heat exchanger 130, desorption heat is obtained and the refrigerant 106 is vaporized. Then, by increasing the pressure in the third container 104 and the fourth container 102 and condensing the vaporized refrigerant 106 in the third container 104 and the fourth container 102, the sixth heat exchanger 145 and the The fourth operating condition c4 in which the intermediate warm water 161 input to the 8 heat exchanger 140 obtains the heat of adsorption,
(2-3) An adsorption heating / hot water supply device that performs control to switch the third operation condition c3 and the fourth operation condition c4 for the third container 104 and the fourth container 102 at a constant time is used. For example, there are no scenes where a high-temperature heat source or a low-temperature heat source is not used depending on operating conditions. Moreover, since the output is always obtained from the same number of heat exchangers, the output can be stabilized.

Then, the output of medium / low temperature water is obtained by the heat of adsorption obtained from the heat of evaporation, and the medium temperature water is reused to further obtain the heat of evaporation, and the medium / high temperature water is obtained as the output by the heat of adsorption obtained from the heat generation. It is possible to produce medium-temperature water having a relatively high temperature of about 45 ° C to 50 ° C. In addition, by repeating the above process, it is possible to stably take out the medium-temperature water.
And although the theoretical thermal efficiency is about COP1.3, which is slightly inferior to the prior art 1, the convenience is greatly improved in that medium temperature water having a high temperature can be obtained. Furthermore, since the range in which operation can be performed with higher thermal efficiency than directly using a high-temperature heat source is expanded, energy saving can be realized as a whole.
In the adsorption heating / hot water supply apparatus shown in the embodiment of the invention according to claim 2, the adsorption performance of the third heat exchanger 110 and the seventh heat exchanger 130 is the same as that of the first heat exchanger 115 and the first heat exchanger. It is desirable to set higher than the adsorption performance of the adsorbent 105 of the five heat exchanger 135. This is because by using the circulating hot water 163 as an evaporation heat source, the adsorption side is required to have a higher level of adsorption performance. Therefore, the amount of the adsorbent 105 can be increased or the material of the adsorbent 105 can be made higher than that of silica gel, for example. It may be possible to respond by changing to activated carbon with high adsorption performance. By doing so, it is possible to perform heat exchange more efficiently.

It is a block diagram of the invention which concerns on Claim 1 in an adsorption | suction type heating and hot-water supply apparatus, and has shown the 1st driving | running state. It is a block diagram of the invention which concerns on Claim 1 in an adsorption | suction type heating and hot-water supply apparatus, and has shown the 2nd driving | running state. It is a block diagram of the invention which concerns on Claim 2 in an adsorption | suction type heating and hot-water supply apparatus, and has shown the 1st driving | running state and the 3rd driving | running state. It is a block diagram of the invention which concerns on Claim 2 in an adsorption | suction type heating and hot-water supply apparatus, and has shown the 2nd driving | running state and the 4th driving | running state which switched the flow path of FIG. It is a block diagram of the prior art 1 in an adsorption | suction type heating and hot water supply apparatus. It is a block diagram of the prior art 1 in an adsorption | suction type heating and hot water supply apparatus, and switches the flow path of FIG. It is a block diagram of the prior art 2 in an adsorption | suction type heating and hot water supply apparatus. It is a block diagram of the prior art 2 in an adsorption | suction type heating and hot-water supply apparatus, and switches the flow path of FIG.

Explanation of symbols

1, 2 Container 5 Adsorbent 6 Refrigerant 10, 20, 30, 40 Heat exchangers 11-15 Pipe 21-26 Pipe 31-34 Pipe 41-44 Pipe 50-59 Pipe 60 High temperature heat source 60a High temperature heat source inlet 60b High temperature heat source outlet 61 Medium temperature water 61a Medium temperature water inlet 61b Medium temperature water outlet 62 Low temperature heat source 62a Low temperature heat source inlet 62b Low temperature heat source outlet 63 Circulating medium temperature water 70 Circulation pumps 71-84 Valves

Claims (2)

A first container and a second container, which are filled with a refrigerant such as water and whose interior is kept in vacuum so that the refrigerant evaporates at a low temperature;
A first heat exchanger provided with an adsorbent in the first container;
A second heat exchanger provided to evaporate and condense the refrigerant in the first container;
A third heat exchanger provided with an adsorbent in the second container;
In the adsorption heating / hot water supply apparatus having a fourth heat exchanger provided for evaporating and condensing the refrigerant in the second container,
(1) By inputting a high-temperature heat source to the first heat exchanger and the third heat exchanger, desorption heat is obtained to vaporize the refrigerant, and the pressure in the first container and the second container Raise the
A first operating condition in which the intermediate temperature water input to the second heat exchanger and the fourth heat exchanger obtains heat of condensation by condensing the vaporized refrigerant in the first container and the second container;
(2) By inputting a low-temperature heat source to the second heat exchanger, heat of evaporation is obtained, the refrigerant is vaporized, and the pressure in the first container is increased,
The circulating hot water input to the first heat exchanger obtains heat of adsorption and adsorbs the vaporized refrigerant in the first container,
By inputting the circulating hot water obtained from the first heat exchanger to the fourth heat exchanger, further evaporating heat is obtained to vaporize the refrigerant, and the pressure in the second container is increased. And
A second operating condition in which the intermediate temperature water input to the third heat exchanger obtains heat of adsorption by adsorbing the vaporized refrigerant in the second container;
(3) An adsorption heating / hot water supply device characterized by having operation control means for switching the first operation condition and the second operation condition at a predetermined time with respect to the first container and the second container. The adsorption heating / hot water supply apparatus according to claim 1,
(1) a third container and a fourth container in which a refrigerant such as water is put and the inside is kept in vacuum so that the refrigerant evaporates at a low temperature;
A fifth heat exchanger provided with an adsorbent in the third container;
A sixth heat exchanger provided to evaporate and condense the refrigerant in the third container;
A seventh heat exchanger provided with an adsorbent in the fourth container;
An eighth heat exchanger provided for evaporating and condensing the refrigerant in the fourth container;
(2) The operation control means is
(2-1) Simultaneously with the first operating condition,
By inputting a low-temperature heat source to the sixth heat exchanger, the heat of evaporation is obtained, the refrigerant is vaporized, and the pressure in the third container is increased,
The circulating hot water obtains heat of adsorption in the fifth heat exchanger, adsorbs the vaporized refrigerant in the third container,
By inputting the circulating hot water obtained from the fifth heat exchanger to the eighth heat exchanger, further evaporating heat is obtained to vaporize the refrigerant, and the pressure in the fourth container is increased. And
A third operating condition in which the medium-temperature water input to the seventh heat exchanger obtains heat of adsorption by adsorbing the vaporized refrigerant in the fourth container;
(2-2) Simultaneously with the second operating condition
By inputting a high-temperature heat source to the fifth heat exchanger and the seventh heat exchanger, desorption heat is obtained to vaporize the refrigerant, and the pressure in the third container and the fourth container is increased. And
A fourth operating condition in which the intermediate temperature water input to the sixth heat exchanger and the eighth heat exchanger obtains heat of adsorption by condensing the vaporized refrigerant in the third container and the fourth container;
(2-3) An adsorption heating / hot water supply apparatus that performs control for switching the third operation condition and the fourth operation condition at a predetermined time for the third container and the fourth container.

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