JPH035678A - Thermal driving type heat pump device - Google Patents

Abstract

PURPOSE:To simplify a mechanism and facilitate an operation of the mechanism by a method wherein a single heat pump device or a part of a plurality of heat pump devices is continuously positioned in sequence at a heat utilizing part of a heat source in the heat pump. CONSTITUTION:An entire heat pump is rotated around a rotary shaft 15 in a direction indicated by an arrow. Zone (a) and (b) are regenerating zones in which containers A11a and A11b are applied as a heat source and opening or closing valves 14a and 14b are opened. Working medium adsorbed in active carbons in the containers A11a and A11b passes through passages 13a and 13b under a heated condition, move to containers B12a and B12b to cool them and the working medium is condensed and liquefied and gradually a storing amount of medium is increased. Then, at the zones (c) and (d), the opening or closing valves 14c and 14d are closed and the containers A11c, A11d, B12c and B12d are gradually cooled by thermal medium supplied to the heat source. Then, at zones (e) and (f), as opening or closing valves 14e and 14f are opened, working medium in the containers B12e and B12f is vigorously evaporated due to absorbing force of the active carbons in the containers A11e and A11f. The medium passes through passages 13e and 13f, the medium is adsorbed in the active carbons. The containers B12e and B12f are cooled under a heat absorbing action through evaporation and this cooled part is applied as a heat utilizing part, thereby the device may act as a cooling device.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is a heat generating system that utilizes heat absorption and heat generated by chemical reactions, which can be used for heating, cooling, air conditioning, exhaust heat recovery, etc. in a wide range of applications from household to industrial use. The present invention relates to a drive type heat pump device.

BACKGROUND OF THE INVENTION Various proposals have been made regarding thermally driven heat pump devices that utilize heat absorption and heat generated by chemical reactions, which are called chemical heat pumps. The basic structure is explained in the third section.
As shown in the figure. Here, 1 is a container containing a working medium 5, and 2 is a container containing a chemical substance 6 that reacts with the working medium 5. Reference numeral 3 denotes a communication path that communicates the spaces between both containers 1.2, and an on-off valve 4 is installed on the way. Tetris water, alcohol, ammonia, etc. are used as the working medium 5, and inorganic salts, adsorbents, etc. are used as the chemical substance 6, but the reaction system can be appropriately selected depending on the purpose, applicable temperature level, etc. .

First, when the container 2 is heated by the heat of the driving source with the on-off valve 4 open, a desorption reaction of the working medium 5 proceeds in the container 2.
The working medium 5 becomes a gas phase and starts moving toward the container 1 side.

At this time, if the working medium 5 is cooled on the side of the container Al, the heat of condensation is taken away from the working medium 5, and the working medium 5 changes from a gas phase to a liquid phase and is stored in the container 1. This is called a playback operation. When the on-off valve 4 is closed, the working medium 5 of the liquid phase cane is placed in the container 1, and the chemical substance 6 that reacts with the working medium 5 is sealed in the container 2, separated by the on-off valve 4. Thereafter, during heat dissipation, the on-off valve 4 is opened to communicate with the rain space. Then, the working medium 5 in the container 1 becomes a gas phase, moves into the container 2, and starts reacting with the chemical substance 6 in the container 2. At this time, heat generation occurs in the container 2 due to the reaction and the temperature rises, and in the container 1, heat absorption due to evaporation of the working medium 5 starts and the temperature decreases. Therefore, until the reaction is completed, cold heat can be used on the container 1 side and warm heat can be used on the container 2 side, and it is possible to select which one to use depending on the purpose. This is a usage operation.

Since playback and usage operations need to be performed intermittently, two sets of units (as shown in Figure 1) are generally used.
By preparing the above) and repeating the playback operation and use operation alternately (in order), the operation appears to be continuous. As an example of this, there is, for example, Japanese Unexamined Patent Publication No. 63-4635Et.

Problems to be Solved by the Invention Most thermally driven heat pumps that utilize the heat absorbed and absorbed by chemical reactions are reaction systems that involve solids as reactants, so their operation must basically be intermittent. In most cases, this is not possible, and in order to enable apparently continuous operation, it is necessary to operate two or more reaction systems alternately as described above. At this time, as the working medium flow path is opened and closed, each container must be sequentially switched to the heat source side and the user side. It was necessary. In this case, the mechanism becomes complicated and the operation (control) becomes complicated.

The present invention aims to solve the problems of the prior art.

Means for Solving the Problems The present invention provides a container A containing a chemical substance whose main component is solid or liquid or a mixture of both and capable of exchanging heat with the outside world; An intermittent heat pump unit is formed from a container B that mainly contains a working medium that reacts with the heat exchanger and is capable of exchanging heat with the outside world, and a working medium passage that communicates between the two containers via an on-off valve,
A large number of units are arranged so that the containers of the units are almost adjacent to each other to form an integrated heat pump, and the unit or a plurality of the units are arranged in the heat source section and the 1 utilization section of the heat pump. The heat pump device is a thermally driven heat pump device that can operate so that heat can be used continuously by operating the heat pump so that the portions are successively positioned one after the other.

Function The present invention provides a heat source section and a heat utilization section such that a single unit or parts of a plurality of units forming an intermittent heat-driven heat pump are located at a place where heat can be exchanged sequentially and continuously. , which is based on a configuration that allows continuous operation (heat exchange). That is, it is sufficient that the relative positions of the heat source section and the heat utilization section and the unit or a plurality of parts of the unit satisfy the above relationship. One method is heat input at the heat source,
This can be achieved by rotating the assembly of units so that the heat absorption (or heat generation) location in the usage part remains constant and each unit or a portion of a plurality of the units is sequentially located at that location. . Another method is to keep the assembly of units stationary and rotate the heat input to the unit at the heat source section and the heat absorption (or heat generation) location at the utilization section. In either of these methods, it is only necessary to open the on-off valve of the unit located in either the heat source part or the heat utilization part, and to leave the on-off valve of the unit located in neither of these parts open. At this time, in the unit where container A is located in the heat source section, the regeneration operation is progressing and warm heat can be used on the container B side if necessary), and at the same time, in the unit where container A is located in the heat utilization section, the container Warm heat can be used on the A side, and cold heat can be used on the B side of the container, so it is possible to select between cold and hot depending on the purpose.

Examples Examples of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view showing an outline of an embodiment of a thermally driven heat pump device according to the present invention. 11 is a container A that contains a chemical substance whose main component is solid or liquid or a mixture of both, and is configured to be able to exchange heat with the outside world, and 12 is a container A that reversibly reacts with the chemical substance in the container A11. The container B is configured to mainly contain a working medium and to be able to exchange heat with the outside world.
11 and B12 communicate with each other through a working medium passage 13 and constitute an intermittent heat pump unit. In this embodiment, eight of these units are arranged radially around the rotating shaft 15 so that the containers of the units are almost adjacent to each other to form an integrated heat pump. In the figure, for convenience of explanation, one unit is installed in each of the eight zones labeled a to h. (identified as a component in the zone)
. At this time, the number of units combined to form one heat pump can be freely selected depending on the application and the like. In addition, as a reaction system, in this example, a container Al
Activated carbon, which is an adsorbent, is sealed in container B.
Although alcohol is used as the working medium in No. 12, it is not limited to this system, and may be used with other adsorbents and other working medium systems, absorption systems of inorganic salt aqueous solution to water, etc., hydration reaction systems of inorganic salts to water, etc. ,
It can be freely selected from various reaction systems, such as hydrogen storage alloys to hydrogen systems, depending on the purpose, temperature level, design constraints, etc.

Next, the operation of the above embodiment will be explained. This embodiment is a heat-driven cooling device, in which the heat source section and heat utilization section are fixed, and the entire heat pump rotates relatively slowly around the rotating shaft load 5 as shown by the arrow. I am.a
l b zone is the regeneration zone, and its container A11a,
The b side is the heat source part, and this part is used for the heater (such as a combustor).
It is heated by an enclosure. The on-off valves 14a and 14b are in an open state.

Then, the alcohol adsorbed on the activated carbon in the containers A11a and b is desorbed by heating and the working medium passage 13
By passing through a and b and moving to the volume PJBs 12a and 12b, and cooling the same parts, it is condensed and liquefied, and the storage n gradually increases. After that, when the rotation progresses and passes through the C1d zone (slow cooling zone), the on-off valves 14c and d are closed, and the containers B12c and d are closed.
is slowly cooled by a heat medium or the like before being supplied to the heat source.

Next, when entering the eN f' zone, this is a usage zone, and the on-off valves 14e and 14f are in the open state. Then, due to the suction power of the activated carbon in containers A12e and f, container B
The alcohol which is the working medium in 12e and 12f evaporates rapidly and is adsorbed by the activated carbon through the working medium passages 13e and 13f. At this time, adsorption heat is generated on the container A11el f' side, but by removing this heat, the evaporation of alcohol in the containers B12e and f continues (until adsorption equilibrium is reached), so that the endothermic action due to evaporation is suppressed. Therefore, the same part becomes in a cooling state. By using this as a heat utilization section, it functions as a cold door device. After this, the rotation further progresses and when it is located in the gl h zone, the on-off valve 14
g and b are left blank, and preheating the volumes WA11g and h with waste heat from the heat source is effective as a preparation for the next heating in the aN bzon. Therefore, the g1h zone is designated as a preheating zone. This means that the heat pump has made one revolution around the rotating shaft 15, but by continuing to rotate, units in the same state will be located one after another in each sea 7, so It is possible to use heat (cooling in this example). Here, in this embodiment, only the cold energy generated in the volumes 19B12e and r of the es f zone is used as a cooling device, but the
Condensation heat generated in container B 12a, b in zone b, e
Of course, it is also possible to change the equipment configuration so that the adsorption heat generated in the containers A 11 e, t in the s f zone and the exhaust heat from the heat source are utilized by switching to a heating mode or the like. Further, in this embodiment, a portion of two units are located in the heat source section and the heat utilization section, but this number can also be set freely.

In this way, the entire unit simply rotates,
Continuous heat utilization becomes possible with an extremely simple operation (control) of just opening and closing the on-off valve.

Next, a conceptual diagram of another embodiment according to the present invention is shown in FIG. 21 is a container A that contains a chemical substance whose main component is a solid, a liquid, or a mixture of both, and is configured to be able to exchange heat with the outside world, and 22 is a container A that reversibly reacts with the chemical substance in the container A2i. A container B mainly containing a working medium and configured to be able to exchange heat with the outside world,
Both containers A21 and B22 communicate with each other through a working medium passage 23 via an on-off valve (circuit) to form an intermittent heat pump unit. In this embodiment, there are eight of these units as in the case of FIG. They are arranged in a ring at the same distance to form an integrated heat pump. In the figure, for convenience, those units are a-
One unit is installed in each of the eight zones labeled h. At this time, the number of units combined to form one heat pump can be freely selected depending on the application, etc., and the reaction system can also be selected from a variety of types, depending on the purpose, temperature level, and design constraints. It is the same as in the embodiment shown in FIG. The arrow in the figure indicates the direction of rotation. The operation is exactly the same as the embodiment shown in Fig. 1, so it will be omitted, but the embodiment shown in Fig. 1 is suitable for forming a thin device, and the embodiment shown in Fig. 2 is The example is suitable for forming a compact shaped device. It is possible to select according to the heat source part, the type of heat source in the heat utilization part, the method of heat exchange, etc. The present invention also naturally includes a configuration in which the units are installed radially at a certain angle with respect to the rotation axis, which is a compromise between the embodiment shown in FIG. 1 and the embodiment shown in FIG. In addition, in both embodiments, the relative position of the unit or parts of the unit relative to the heat source and heat utilization section changes sequentially and continuously as the unit rotates, allowing continuous operation as a heat pump. However, conversely, it is also possible to keep the unit stationary and rotate the heat source and heat utilization side, which is also within the scope of the present invention, but in general, a fluid such as air is used as a heat medium for heat exchange. is often used, in which case the flow path must be rotated, making the configuration somewhat complicated. Therefore, if anything, it is better to rotate the unit side as in the embodiment shown here.

Effects of the Invention The present invention provides a container A that contains a chemical substance whose main component is solid or liquid or a mixture of both and is capable of exchanging heat with the outside world, and an operation that reversibly reacts with the chemical substance in the container A. An intermittent heat pump unit is formed by a container B that mainly accommodates a medium and is capable of exchanging heat with the outside world, and a working medium passage that communicates between the two containers via an on-off valve. A large number of units are arranged so that they are almost adjacent to each other to form an integrated heat pump, and the single unit or parts of the plurality of units are successively located in a heat source section and a heat utilization section of the heat pump. By operating as described above, the heat pump device is a thermally driven heat pump device configured to be able to utilize heat continuously during operation. In addition, multiple units are arranged radially around the rotation axis to form an integrated heat pump.
The relative position of the unit or a plurality of parts of the unit relative to the heat source section and the heat utilization section is sequentially and continuously changed while rotating, thereby enabling continuous operation as a heat pump. In addition, a large number of units are arranged in a ring shape around a rotating shaft so that both containers are at approximately the same distance from the rotating shaft to form an integrated heat pump. The relative positions of a single unit or a plurality of parts of the unit are sequentially and continuously changed while rotating, thereby enabling continuous operation as a heat pump.

Furthermore, since the reversible reaction between the chemical substance and the working medium includes absorption and adsorption, it is primarily used intermittently in principle, but requires a complicated configuration to be used continuously. Conventional heat-driven heat pumps that utilize chemical reactions require complicated operations and controls, but the present invention has a simple configuration and extremely simple operations and controls, making it possible to continuously utilize heat. We were able to obtain a great effect.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing the concept of one embodiment of a heat-driven heat pump according to the present invention, FIG. 2 is a perspective view showing the concept of another embodiment of the present invention, and FIG. 3 is a conventional heat-driven heat pump. FIG. 2 is a cross-sectional view for explaining the principle. IL21...Container A112.22...Container B113
．． 23... Working medium passage, 14... Opening/closing valve.

Claims (4)

[Claims] (1) Container A that contains a chemical substance whose main component is solid or liquid or a mixture of both and is capable of exchanging heat with the outside world, and a working medium that mainly contains a working medium that reversibly reacts with the chemical substance in container A. An intermittent heat pump unit is constituted by a container B capable of exchanging heat with the outside world, and a working medium passage communicating between the two containers via an on-off valve,
An integrated heat pump is constructed by arranging a large number of units so that the containers of the units are almost adjacent to each other, and the unit alone or a portion of a plurality of units is provided in the heat source section and the heat utilization section of the heat pump. A thermally driven heat pump device configured to be able to utilize heat continuously by being operated so as to be positioned one after another. (2) A plurality of units are arranged radially around a rotation axis to form an integrated heat pump, and the relative position of the unit or a portion of the plural units with respect to the heat source section and the heat utilization section is 2. The thermally driven heat pump device according to claim 1, wherein the heat pump device can be operated continuously as a heat pump by sequentially and continuously changing the temperature while rotating. (3) A large number of units are arranged in an annular shape around a rotating shaft so that both containers are at approximately the same distance from the rotating shaft to form an integrated heat pump, and Thermal drive according to claim 1, characterized in that the relative position of the unit or a plurality of parts of the unit is sequentially and continuously changed while rotating, thereby enabling continuous operation as a heat pump. type heat pump equipment. (4) Claim 1, 2 or 3, characterized in that the reversible reaction between the chemical substance and the working medium also includes absorption and adsorption.
The thermally driven heat pump device described.