JPH0424474A - Heat driving type heat pump device - Google Patents

Abstract

PURPOSE:To permit the effective and efficient utilization of the heat of a middle temperature side heat exchanger and a low temperature side heat exchanger by a method wherein the title device is provided with a refrigerating heat exchanger, through which a medium, whose heat is exchanged in the low temperature side heat exchanger, is circulated, and a hot-water reserving heat exchanger, through which another medium, whose heat is exchanged in the middle temperature side heat exchanger, is circulated. CONSTITUTION:When hot-water supplying heat demand is generated upon cooling operation and a switching valve 36 is switched to a condition shown by dotted lines in a diagram under a condition that a detecting temperature from a means 40 has not arrived at a predetermined temperature, high-temperature medium, heated by passing from an auxiliary middle temperature side heat exchanger 15 through a middle temperature side heat exchanger 8, flows through the route of the closed circuit of a changeover valve 24 - a changeover valve 36 - a hot-water reserving heat exchanger 35 - a high-temperature side circulating pump 30 - the auxiliary middle temperature side heat exchanger 15 while the hot-water reserving heat exchanger 35 increases a hot-water temperature in a hot-water reserving tank 37. On the other hand, heat medium, whose temperature is reduced by opening the switching valve 33 and effecting heat exchanger in the low temperature side heat exchanger 13 upon demanding refrigerating heat, is circulated through a refrigerating heat exchanger 32. According to this constitution, releasing of high-temperature heat into atmosphere from a heat dissipating outdoor side heat exchanger 28 as well as the absorption of low-temperature heat by atmosphere from a heat absorbing outdoor side heat exchanger 31 can be restrained.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a thermally driven heat pump device used in air-conditioning equipment, etc., and in particular to a Billmeier cycle, that is, a thermally driven heat pump applied to a cryogenic refrigerator. It is related to the device.

[Prior Art] In recent years, heating and cooling systems using the Billmeyer cycle have been attracting attention because they are effective in combating global environmental problems such as fluorocarbon regulations and global warming. Publication No. 61-44254 and Special Publication No. 61-59159
It has been proposed in the following publications.

Figure 2 is U
This figure shows a heating and cooling system to which the Billmeier cycle has been proposed, in which (1) shows a high-temperature side cylinder, and (2) shows a high-temperature side cylinder that is divided into a high-temperature room (3) and a first medium-sized room (4). A high temperature side displacer (5) which partitions and reciprocates, communicates with the high temperature chamber (1) of the high temperature side cylinder (1), and a high temperature side heat exchanger (7) heated from an externally arranged burner (6). ) and (8) are a heat storage device and a medium temperature side heat exchanger arranged in series between this high temperature side heat exchanger (5) and the first medium temperature greenhouse (4) of the high temperature side cylinder (1); (9) is a low-temperature side cylinder, and (10) is a low-temperature side cylinder which is divided into a low temperature chamber (11) and a second medium chamber (I2), and whose phase is about 70° with respect to the high temperature side cylinder (1). Low-temperature side displacers (13), (14), and (15) that shift and reciprocate
(16) is a low temperature side heat exchanger, a regenerator, and an auxiliary medium temperature heat exchanger arranged in series between the low temperature chamber (11) and the second medium temperature chamber (12) of the low temperature side cylinder (9); is a communication chamber that communicates the first medium-sized greenhouse (4) of the high-temperature side cylinder (1) with the second medium-sized greenhouse (12) of the low-temperature side cylinder (9);
17) is the first medium greenhouse (4) of the high temperature side cylinder (1).
) and the second medium greenhouse (12) of the low temperature side cylinder (9).
A machine room (18) is installed in this machine room and is a rotating body that is rotated clockwise around a rotating shaft (9), and (20) is a rotating body located at the tip of this rotating body. The high temperature side displacer (
A first rocking body (22) pivotally supported at the end of the rotary body (22) moves in conjunction with this first rocking body (20), and pivots on a shaft (21) disposed at the tip of the rotary body. This is a second rocking body supported and pivotally supported at the end of the low temperature side displacer (10). And the high temperature chamber (3) of the high temperature side cylinder (1)
and in the first medium greenhouse (4), the low temperature chamber (11) of the low temperature side cylinder (9), and the second medium greenhouse (12), and the high temperature side heat exchanger (5) and the heat storage device (7). , medium temperature side heat exchanger (8
), low-temperature side heat exchanger (13), regenerator (14), auxiliary medium-temperature side heat exchanger (15), and communication chamber (16) filled with a working gas consisting of helium gas or nitrogen gas. It is. In addition, (23) has one end connected to the medium temperature side heat exchanger (8) and the first and second switching valves (24) (25
), and is also connected to the low temperature side heat exchanger (13) via the second switching valve (25) and the low temperature side circulation pump (26), and the other end is connected to the low temperature side heat exchanger (13). 1
3) via the third switching valve (27), and the fourth switching valve (29) and the high temperature side circulation pump (3o).
An indoor heat exchanger (28) is connected to the auxiliary medium temperature side heat exchanger (15) via the medium temperature side heat exchanger (8), and one end thereof is connected to the medium temperature side heat exchanger (8) via the first switching valve (24). an outdoor heat exchanger (31) for heat dissipation, the other end of which is connected to the auxiliary medium temperature heat exchanger (15) via the fourth switching valve (29) and the high temperature side circulation pump (30); ) is connected to the low temperature side heat exchanger (13) via the low temperature side circulation pump (26), and the other end is connected to the third switching valve (2
7) is an outdoor heat exchanger for heat absorption connected to the low temperature side heat exchanger (13).

Next, the operation of the heating and cooling system configured as described above will be explained. First, the burner (6) is used to heat the high temperature side heat exchanger (
5) is heated to approximately 700°C and the rotating shaft (19) is rotated by a small output motor (not shown).
As the high temperature side displacer (2) begins to descend from the illustrated position, the low temperature side displacer (10), which is at the top dead center as illustrated, begins to move to the left in the figure. When the high temperature side displacer (2) reaches the bottom dead center and begins to rise again, the working gas in the high temperature room (3) displaces the high temperature side displacer (2).
2), this pushed out working gas is heated to about 700'C by a burner (6) and passes through a regenerator (7). The working gas, whose temperature has been lowered by storing high heat in the heat storage device (7), is transferred to the medium-temperature side heat exchanger (8).
When passing through the medium, the medium exchanges heat with the medium to raise the temperature of this medium to about 80° C., and the medium itself is cooled down and transferred to the first medium greenhouse (4).

On the other hand, the low-temperature side displacer (1o) continues to move to the left in the figure, and the working gas pushed out from the second medium-sized greenhouse (12) and the working gas moved to the first medium-sized greenhouse (4) are connected to the communication chamber. (16) and mixed through the auxiliary medium temperature side heat exchanger (15), regenerator (14) and low temperature side heat exchanger (13).
), the working gas flows into the cold room (11), and inside the cold room (11), which has a large internal volume, the pressure of the working gas decreases and the temperature drops. After that, when the low-temperature side displacer (10) reaches the bottom dead center and starts moving to the right in the figure again, the low-temperature working gas is pushed out of the cold room (11), and this working gas is transferred to the low-temperature side heat exchanger (13). When passing through the medium, it exchanges heat with the medium and cools this medium to -10°C, and the medium itself stores cold heat in the regenerator (14) and transfers it to the auxiliary medium temperature side heat exchanger (14).
5).

In addition, the heat storage device (7) is connected from the first medium temperature room (4) to the high temperature room (
3), the regenerator (14) increases operational efficiency by heating and cooling the working gas when it moves from the second medium greenhouse (12) to the cold room (11). be.

In this way, the high-temperature side heat exchanger (5) is heated by the burner (6) to keep it at a high temperature, and the medium-temperature side heat exchanger (8) is cooled from the outside to keep the temperature of the working gas constant. , using a refrigerator based on the Purmeyer cycle in which a low temperature section is generated by moving the high temperature side and low temperature side displacers (2) (10) in such a state,
The heat absorbed in this low temperature section is used for cooling by the low temperature side heat exchanger (13).
The heat generated by the medium temperature side heat exchanger (8) can be used for heating.

That is, during cooling operation, the first to fourth switching valves (
24) (25) (27) (29) are brought into the state shown by the solid line arrows in the figure. Then, the low temperature medium cooled by the low temperature side heat exchanger (13) is transferred to the low temperature side circulation pump (2).
6) - Second switching valve (25) - Indoor heat exchanger (23)
) - the third switching valve (27) - the low-temperature side heat exchanger (13), and the room is cooled by the indoor side heat exchanger (23). On the other hand, the auxiliary medium temperature side heat exchanger (
The high temperature medium heated from 15) through the medium temperature side heat exchanger (8) is transferred from the first switching valve (24) to the heat radiation outdoor heat exchanger (28) to the fourth switching valve (29). It flows into the closed circuit of - high temperature side circulation pump (30) - auxiliary medium temperature side heat exchanger (15), and is radiated by the heat radiation outdoor heat exchanger (28). Also, during heating operation, the first to fourth switching valves (24)
(25), (27), and (29) are brought into the state shown by the dotted line arrows in the figure. Then, the high temperature medium heated from the auxiliary medium temperature side heat exchanger (15) through the medium temperature side heat exchanger (8) is transferred from the first switching valve (24) to the second switching valve (25) to the chamber. It flows through the closed circuit of the inner heat exchanger (23) - the fourth switching valve (29) - the high temperature side circulation pump (30) - the auxiliary medium temperature side heat exchanger (15), and is heated by the indoor heat exchanger (23). be done. On the other hand, the low temperature medium cooled by the low temperature side heat exchanger (13) is distributed between the low temperature side circulation pump (26) - the heat absorption outdoor heat exchanger (31) - the third switching valve (27) - the low temperature side heat It flows through a closed circuit consisting of an exchanger (13), and heat is pumped up from the outside air by the heat-absorbing outdoor heat exchanger (31).

[Problems to be Solved by the Invention] However, in the air-conditioning device configured as described above, an external heating heat source, which is a burner (6), is used as a driving source, and moreover, it is inherently difficult to obtain extremely low temperatures. Since the heat cycle is suitable for
) and the low temperature side heat exchanger (13),
Although it is easy to obtain high and low temperature heat sources at the same time, high temperature heat is released from the outdoor heat exchanger for heat radiation (28) during cooling operation, and low temperature heat is released from the outdoor heat exchanger for heat absorption (31) during heating. Since it absorbs heat, it still has the problem of insufficient overall efficiency from the standpoint of effective heat utilization.

This invention has been made in view of the above points, and an object of the present invention is to obtain a heat-driven beat pump device that can effectively and efficiently utilize the heat of the medium-temperature side heat exchanger and the low-temperature side heat exchanger. It is something.

[Means for Solving the Problems] A thermally driven heat pump device according to the present invention includes a high-temperature side displacer that divides the inside of the high-temperature side cylinder into a high temperature chamber and a first intermediate chamber and moves back and forth; A high-temperature side heat exchanger that communicates with a high-temperature chamber and is heated from the outside; a heat storage device and a medium-temperature side heat exchanger arranged in series between the high-temperature side heat exchanger and the first medium-temperature chamber of the high-temperature side cylinder; a low-temperature side displacer that divides the inside of the low-temperature side cylinder into a low temperature chamber and a second medium chamber and reciprocates out of phase with the high temperature side cylinder; A low-temperature side heat exchanger and a regenerator arranged in series between, a communication chamber that communicates the first medium-sized greenhouse of the high-temperature side cylinder and the second medium-sized greenhouse of the low-temperature side cylinder, and a low-temperature side heat exchanger during cooling. The medium heat exchanged in the medium temperature side heat exchanger during heating is circulated in the indoor heat exchanger, and the medium heat exchanged in the medium temperature side heat exchanger during cooling is circulated. , an outdoor heat exchanger for heat dissipation in which the medium heat exchanged in the medium-temperature side heat exchanger is circulated when cooling heat is required, and a medium heat-exchanged in the low-temperature side heat exchanger during heating is circulated during hot water demand. An endothermic outdoor heat exchanger in which the medium heat exchanged in the low temperature side heat exchanger is circulated, and a refrigeration heat exchanger in which the medium heat exchanged in the low temperature side heat exchanger is circulated when refrigeration heat is required. and a hot water storage heat exchanger in which the medium heat exchanged in the medium heat exchanger is circulated when hot water supply heat is required.

[Function] In this invention, the indoor heat exchanger circulates the medium heat exchanged in the low temperature side heat exchanger, thereby circulating the medium heat exchanged in the medium temperature side heat exchanger. At the same time, the refrigeration heat exchanger circulates the medium heat exchanged in the low-temperature side heat exchanger to meet the refrigeration demand, and the hot water storage heat exchanger supplies the medium-temperature side heat. The medium heat-exchanged in the exchanger is circulated to meet the demand for heat for hot water supply, suppressing the release of high-temperature heat from the outdoor heat exchanger to the atmosphere, and
This suppresses the absorption of low-temperature heat by the atmosphere from the heat-absorbing outdoor heat exchanger.

[Embodiment] An embodiment of the present invention will be described below with reference to FIG. 1. In the figure, (32) has one end connected to the low temperature side circulation pump
) and a fifth switching valve (33) to the low temperature side heat exchanger (13), and the other end is connected to the low temperature side heat exchanger (13). When heat is required, the fifth switching valve (33) is opened, and the medium that has been heated to a low temperature by being exchanged with the low temperature side heat exchanger (13) is circulated. (34) is a temperature detection means for the freezing room that detects the temperature inside the freezing room that is cooled by this freezing heat exchanger, and the detection result is the temperature detection means that detects the temperature inside the freezing room that is cooled by the freezing heat exchanger. 1 control means (not shown), and this first control means controls the fifth switching valve (
33). (35
) has one end connected to the first switching valve (24) and the sixth switching valve (
A heat exchanger for hot water storage, which is connected to the medium temperature side heat exchanger (8) via a high temperature side circulation pump (36), and whose other end is connected to the auxiliary medium temperature side heat exchanger (15) via a high temperature side circulation pump (30). in,
The first and sixth switching valves (24) (36
) is opened and the high temperature medium heat exchanged in the medium temperature side heat exchanger (8) is circulated. (37) is a hot water storage tank with this hot water storage heat exchanger (35) built in, and the water supply pipe (
38) and a hot water outlet pipe (39).

(40) is a hot water storage temperature detection means for detecting the temperature of the hot water in the hot water storage tank, and the detection result is inputted to the second control means (not shown) to detect the temperature of the hot water in the hot water storage tank (37). This is used to control the sixth switching valve (36) by the second control means in order to maintain the temperature at a predetermined temperature.

Next, the operation of the thermally driven heat pump device configured as described above will be explained. This thermal waste heat pump device is capable of cooling only operation, both cooling and freezing operation, cooling, hot water supply and freezing operation, heating only operation, heating and hot water supply operation, heating and freezing operation, heating and hot water supply operation. The 10 types of operating conditions, including refrigeration champion operation, refrigeration independent operation, and hot water supply independent operation, were ranked first.
to the sixth switching valve (24) (25) (27) (
29) This is made possible by switching (33) and (36).

And high temperature side and low temperature side displacers (2) (10
) operates in the same manner as the conventional example described above, and the working gas flows in the same way, and the medium is heated to a high temperature in the medium temperature side heat exchanger (8), and the medium is heated to a high temperature in the low temperature side heat exchanger (13). )
The medium is brought to a low temperature.

The low-temperature medium and high-temperature medium thus obtained are used in the ten types of operating conditions described above.

In other words, during cooling-only operation, the first to sixth switching valves (24) (25) (27) (29) (33)
(36) is brought into the state shown by the solid line arrow in the figure. Then, the low temperature medium cooled by the low temperature side heat exchanger (13) is transferred to the low temperature side circulation pump (26) - the fifth switching valve (33) -
Second switching valve (25) - indoor heat exchanger (23) - third
Flows through a closed circuit consisting of a switching valve (27) and a low-temperature side heat exchanger (13), and the room is cooled by the indoor heat exchanger (23).6 On the other hand, the auxiliary medium-temperature side heat exchanger (15)
The high temperature medium heated through the medium temperature side heat exchanger (8) is transferred to the first switching valve (24) - the sixth switching valve (36) -
Outdoor heat exchanger for heat radiation (28) - fourth switching valve (29)
- High temperature side circulation pump (30) - Auxiliary medium temperature side heat exchanger (1
5), and the heat is radiated by the outdoor heat exchanger (28).

During cooling operation, when a demand for heat for hot water supply occurs, if the detected temperature from the hot water storage detection means (40) has not reached a predetermined temperature, a second control is performed based on the temperature information from this detection means (40). The means controls the sixth switching valve (36) to switch to the state shown by the dotted line in the figure. Then, the auxiliary medium temperature side heat exchanger (
The high temperature medium heated from the medium temperature side heat exchanger (8) from the first switching valve (24) to the sixth switching valve (3
6) - Hot water storage heat exchanger (35) - High temperature side circulation pump (
30) - Flows into the closed circuit of the auxiliary medium temperature side heat exchanger (15),
A hot water storage heat exchanger (35) increases the temperature of hot water in the hot water storage tank (37). When the temperature detected by the temperature detection means (40) exceeds a predetermined value, the second control means controls the sixth switching valve (3).
6) to enter the same operating state as the cooling only operating state. In this way, it is possible to effectively utilize the high-temperature heat that was emitted to the atmosphere from the outdoor heat exchanger (28) for heat dissipation in the conventional example described above. Although the sixth switching valve (36) is completely switched when there is a demand for heat for hot water supply, the heat exchanger for hot water storage (35) and the outdoor heat exchanger for heat radiation (
28) A closed circuit may be formed for both.

Furthermore, when performing cooling operation and freezing operation, the first control means receives temperature information from the freezing temperature detection means (34), determines the priority of cooling and freezing, and switches the fifth switching valve ( 33
), that is, the second switching valve (25) side, the refrigeration heat exchanger (32) side, and both sides. In the refrigeration operation, the low temperature side heat exchanger (13)
The low temperature medium cooled by the low temperature side circulation pump (
26) - Fifth switching valve (33) - Refrigeration heat exchanger (32)
)-low temperature side heat exchanger (13), and is frozen by the refrigeration heat exchanger (32). In this case, since the refrigeration heat load is usually smaller than the cooling heat load, the refrigeration operation can be performed for a short time, and the refrigeration operation can be performed efficiently during the cooling operation. In addition, in order to perform this refrigeration operation efficiently, the flow rate of the low temperature medium circulated in the refrigeration heat exchanger (32) may be slowed down.
The rotational speed of the low-temperature side circulation pump (26) may be controlled to be lowered by the control means, or the low-temperature side circulation pump (26) may be controlled to be turned on/off periodically.

When responding to hot water supply heat demand and refrigeration heat demand during cooling operation, control is performed that combines the operating states for hot water supply and refrigeration as described above, and the second control means controls the sixth control unit. The switching valve (36) is controlled, and the fifth switching valve (33) is controlled by the first control means. As a result, the high-temperature medium heat-exchanged by the medium-temperature side heat exchanger (8) is circulated to the hot water storage heat exchanger (35) when hot water demand is demanded, and the high temperature medium that has been heat exchanged by the medium temperature side heat exchanger (8) is circulated to the refrigeration heat exchanger (32) when refrigeration heat is demanded. The low temperature medium heat exchanged by the low temperature side heat exchanger (13) is circulated and is frozen by the refrigeration heat exchanger (32).

Also, during heating operation, the first to fourth switching valves (24)
(25), (27), and (29) are brought into the state shown by the dotted line arrows in the drawing, and the fifth switching valve (33) is brought into the state shown by the solid line in the drawing. Then, the high temperature medium heated through the medium temperature side heat exchanger (8) from the auxiliary medium temperature side heat exchanger (15) is transferred from the first switching valve (24) to the second switching valve (25) to the chamber. It flows through the closed circuit of the inner heat exchanger (23) - the fourth switching valve (29) - the high temperature side circulation pump (30) - the auxiliary medium temperature side heat exchanger (15), and is heated by the indoor heat exchanger (23). be done. On the other hand, the low temperature medium cooled by the low temperature side heat exchanger (13) is distributed between the low temperature side circulation pump (26) - the fifth switching valve (33) - the endothermic outdoor heat exchanger (31) - the third The heat flows through a closed circuit consisting of the switching valve (27) and the low-temperature side heat exchanger (13), and heat is pumped up from the outside air by the heat-absorbing outdoor heat exchanger (31).

During heating operation, when a demand for heat for hot water supply occurs, the detection means (40) for hot water storage detects that the temperature has not reached a predetermined temperature.
The second control means that receives the temperature information from the detection means (4o) switches the sixth switching valve (36) to the state shown by the dotted line in the figure, determines the priority of heating and hot water storage, and The switching state of the switching valve (24) is controlled in three states: the sixth switching valve (36) side, the second switching valve (25) side, and both sides.
From the auxiliary medium temperature side heat exchanger (15) to the medium temperature side heat exchanger (8)
The high temperature medium heated through the first switching valve (24
) - Sixth switching valve (36) - Hot water storage side heat exchanger (35) -
High temperature side circulation pump (30) - Auxiliary medium temperature side heat exchanger (15)
), and the hot water temperature in the hot water storage tank (37) is increased by the hot water storage side heat exchanger (35). Then, when the temperature detected by the temperature detection means (40) becomes equal to or higher than a predetermined value, the second control means switches the first switching valve (24) to enter an operating state similar to the heating only operating state. Note that the amount of heat radiated from the outdoor heat exchanger for heat radiation (28) during cooling is approximately twice the amount of heat absorbed from the outdoor heat exchanger for heat absorption (31) during heating, which is commensurate with the cooling load. If the setting is made so that the output can be obtained, the amount of heat generated by the medium temperature side heat exchanger (8) is in an excessive state under normal conditions, so the excess amount of heat is used in the hot water storage heat exchanger (35). Because
This can improve overall efficiency. Although the first switching valve (24) is completely switched when there is a demand for heat for hot water supply, a closed circuit is formed for both the hot water storage heat exchanger (35) and the indoor heat exchanger (23). It is a good idea to do so.

When performing heating operation and freezing operation, the temperature detection means for freezing (
The first control means that receives the temperature information from 34) controls the fifth switching valve (33) to switch to the state shown by the dotted line in the figure. Then, the low temperature medium cooled by the low temperature side heat exchanger (13) flows through the low temperature side circulation pump (26) - the fifth switching valve (33) - the refrigeration heat exchanger (32) - the low temperature side heat exchanger. (13) flows into a closed circuit consisting of a refrigeration heat exchanger (
Freezing is performed by 32).

When the demand for refrigeration heat disappears based on the temperature information from the refrigeration temperature detection means (34), the first control means turns on the fifth switching valve (34).
3) to enter the same operating state as the heating only operating state. In this way, in the conventional example described above, the low-temperature heat absorbed from the atmosphere in the heat-absorbing outdoor heat exchanger (31) can be effectively utilized.

When responding to hot water supply heat demand and refrigeration heat demand during heating operation, control is performed that combines the operating states for hot water supply and refrigeration as described above, and the second control means controls the first switching valve. (24) and the sixth switching valve (36) are controlled, and the fifth switching valve (33) is controlled by the first control means.
) is controlled. As a result, a hot water storage heat exchanger (35
), during the demand for hot water supply, the high-temperature medium heat-exchanged by the medium-temperature side heat exchanger (8) is circulated through the refrigeration heat exchanger (32).
), the low-temperature medium heat-exchanged by the low-temperature side heat exchanger (13) is circulated when refrigeration heat is required, and the refrigeration heat exchanger (
32).

In the case of independent hot water supply operation, the high temperature medium heated through the medium temperature side heat exchanger (8) from the auxiliary medium temperature side heat exchanger (15) is transferred from the first switching valve (24) to the fifth switching valve. (36) - hot water storage heat exchanger (35) - high temperature side circulation pump (30) - auxiliary medium temperature side heat exchanger (15) closed circuit, and the hot water storage heat exchanger (35) (37) Increase the temperature of the water inside. On the other hand, the low temperature medium cooled by the low temperature side heat exchanger (13) is transferred to the low temperature side circulation pump (26).
) - Fifth switching valve (33) - Endothermic outdoor heat exchanger (3
1) - Third switching valve (27) - Low temperature side heat exchanger (13)
The heat is pumped up from the outside air by the outdoor heat exchanger (31) for heat absorption.

In the case of refrigeration independent operation, the low temperature medium cooled by the low temperature side heat exchanger (13) is transferred to the low temperature side circulation pump (26).
- A closed circuit consisting of - the fifth switching valve (33) - the refrigeration heat exchanger (32) - the low temperature side heat exchanger (13) is made to flow, and refrigeration is performed by the refrigeration heat exchanger (32).

On the other hand, the heated medium from the auxiliary medium temperature side heat exchanger (15) through the medium temperature side heat exchanger (8) is transferred from the first switching valve (24) to the sixth switching valve (36) to the heat radiation The outdoor heat exchanger for heat radiation (28) - the fourth switching valve (29) - the high temperature side circulation pump (30) - the auxiliary medium temperature side heat exchanger (15). Heat is radiated by the container (28).

[Effects of the Invention] As described above, the present invention provides a heat-driven heat pump device that divides the inside of a high-temperature side cylinder into a high-temperature chamber and a first intermediate chamber, and generates reciprocating fluid flow. an indoor heat exchanger in which the medium heat exchanged in the exchanger is circulated, and the medium heat exchanged in the intermediate temperature side heat exchanger during heating is circulated;
The medium heat exchanged in the medium temperature side heat exchanger during cooling is circulated, and the medium heat exchanged in the medium temperature side heat exchanger is circulated during cooling heat demand, and the low temperature side heat exchanger is used for heating. The medium heat exchanged in the exchanger is circulated through the heat exchanger on the low temperature side when there is demand for heat for hot water supply, and the heat exchanger on the low temperature side when there is demand for refrigeration. The system is equipped with a refrigeration heat exchanger in which the heat exchanged medium is circulated, and a hot water storage heat exchanger in which the medium heat exchanged in the intermediate temperature side heat exchanger is circulated when hot water supply heat is required. This has the effect that the heat of the medium temperature side heat exchanger and the low temperature side heat exchanger can be used effectively and efficiently.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a block diagram showing a conventional thermally driven heat pump device. In the figure, (1) is the high temperature side cylinder, (2) is the high temperature side displacer, (3) is the high temperature chamber, (4) is the first medium greenhouse, (5) is the high temperature side heat exchanger, and (7) is the high temperature side heat exchanger. Heat storage device, (8)
is a medium temperature side heat exchanger, (10) is a low temperature side displacer,
(11) is a cold room, (12) is a second medium room, (13)
is the low temperature side heat exchanger, (14) is the regenerator, (16) is the communication chamber, (23) is the indoor heat exchanger, (28) is the heat radiation outdoor exchanger, (31) is the heat absorption outdoor side. Heat exchanger, (32)
(35) is a heat exchanger for freezing, and (35) is a heat exchanger for hot water storage. Note that the same reference numerals in each figure indicate the same or corresponding parts. Zokushi GoL 11￥ 2

Claims (1)

[Claims] a high-temperature side cylinder, a high-temperature side displacer that divides the inside of the high-temperature side cylinder into a high-temperature chamber and a first intermediate chamber and moves back and forth; a high-temperature-side heat exchanger that communicates with the high-temperature chamber of the high-temperature side cylinder and is heated from the outside. a heat storage device arranged in series between the high temperature side heat exchanger and the first medium temperature chamber of the high temperature side cylinder; a medium temperature side heat exchanger; a low temperature side cylinder; the inside of the low temperature side cylinder is a low temperature chamber; a low-temperature side displacer that is partitioned into a second intermediate chamber and reciprocates out of phase with the high-temperature side cylinder; A heat exchanger and a regenerator, a first medium temperature room of the high temperature side cylinder and a second medium temperature room of the low temperature side cylinder.
A communication chamber that communicates with the middle greenhouse, an indoor heat exchanger in which the medium heat exchanged in the low-temperature side heat exchanger during cooling is circulated, and the medium heat-exchanged in the medium-temperature side heat exchanger during heating is circulated. The medium heat exchanged in the medium temperature side heat exchanger during cooling is circulated, and the medium heat exchanged in the medium temperature side heat exchanger is circulated during cooling heat demand. The medium heat exchanged in the low-temperature side heat exchanger is circulated through the heat-absorbing outdoor heat exchanger, in which the medium heat-exchanged in the low-temperature side heat exchanger is circulated when hot water supply heat is demanded, and the low-temperature side heat exchanger is circulated when there is a demand for refrigeration heat. A heat exchanger for refrigeration in which the medium heat exchanged in the heat exchanger is circulated, and a heat exchanger for hot water storage in which the medium heat exchanged in the medium-temperature side heat exchanger is circulated when hot water supply heat is required. Drive type heat pump equipment.