JP2012237505A - Fluid switching apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fluid switching apparatus that enables one switching apparatus to switch a plurality of adsorbers/desorbers between adsorber and desorber at the same time, can reduce the numbers of actuators and lines used, and can increase energy efficiency.SOLUTION: The fluid switching apparatus 5 includes a rotating central shaft unit 6 that is rotated by a predetermined angle by a drive unit, and a bearing body unit 7 where the rotating central shaft unit 6 is rotatably disposed. At the first operating position of the rotating central shaft unit 6, cooling water C is supplied from a cooling water supply source 41 to a heat transfer pipe 21 of a first adsorber/desorber 2A via cooling water flow passages 61A, 61D, and hot water H is supplied from a hot water supply source 43 to a heat transfer pipe 21 of a second adsorber/desorber 2B via hot water flow passages 62A, 62C. At the second operating position of the rotating central shaft unit 6, the cooling water C is supplied from the cooling water supply source 41 to the heat transfer pipe 21 of the second adsorber/desorber 2B via the cooling water flow passages, and the hot water H is supplied from the hot water supply source 43 to the heat transfer pipe 21 of the first adsorber/desorber 2A via the hot water flow passages.

Description

  The present invention relates to a fluid switching device for alternately switching between cooling water and hot water to heat transfer tubes in a plurality of adsorption / desorption devices in an adsorption refrigerator.

  In the adsorption type refrigerator, a heat transfer tube is inserted into a plurality of adsorption / desorption devices, and in each adsorption / desorption device, a solid adsorbent such as silica gel is disposed on the surface of the heat transfer tubes. Further, the evaporator and the condenser can be individually communicated with each of the adsorption / desorption devices by using the opening and closing of the damper. In addition, each adsorption / desorption device, evaporator, and condenser are in a vacuum state, and a refrigerant can flow between them. The adsorption refrigeration machine alternates an adsorption / desorption device that allows cooling water to flow through the heat transfer tubes and functions as an adsorber, and an adsorption / desorption device that functions as desorption devices by flowing hot water through the heat transfer tubes at predetermined time intervals. The operation is switched to.

  For example, as disclosed in the operation method of the adsorption refrigeration system of Patent Document 1, switching between cooling water and hot water flowing to the heat transfer tubes in the plurality of adsorption / desorption devices is performed using a number of valves. In this operation method, the adsorbent heating heat medium remaining in the heat transfer tube of the adsorption tower immediately before the transition from the desorption process to the adsorption process among the multiple adsorption towers is immediately before the transition from the adsorption process to the desorption process. It is disclosed that the adsorption / desorption is switched when almost the entire amount of the residual heat medium passes through the heat transfer tube and the preheating of the solid adsorbent is completed.

Japanese Patent Application Laid-Open No. 64-58966

  However, in Patent Document 1, switching between cooling water and hot water flowing to the heat transfer tubes in the plurality of adsorption / desorption devices needs to be performed by individually operating a large number of valves. For this reason, a large number of actuators for operating the valves are required, and piping for connecting the valves is complicated. Along with this, the amount of heat (the amount of heat in the piping and water in the piping) that must be recovered at the time of switching between adsorption and desorption increases, which causes a reduction in COP (energy efficiency). Furthermore, the adsorption refrigeration system becomes larger, and there is a risk that the manufacturing man-hours, maintainability, etc. will deteriorate.

  The present invention has been made in view of such conventional problems, and a single switching device can simultaneously switch a plurality of adsorption / desorption devices to an adsorption device and a desorption device, and use actuators and piping. It is an object of the present invention to provide a fluid switching device capable of reducing the number and improving the energy efficiency.

According to a first aspect of the present invention, there are provided a plurality of adsorption / desorption devices formed by inserting heat transfer tubes having a solid adsorbent disposed on the surface, an evaporator capable of individually communicating with the plurality of adsorption / desorption devices, and the plurality of adsorption / desorption devices. The adsorption / desorption device that is used in an adsorption refrigeration machine including a condenser that can communicate with the desorber individually, and that allows cooling water to flow through the heat transfer tube to function as an adsorber, and hot water to the heat transfer tube. A fluid switching device that sequentially switches between the adsorption / desorption device that flows and functions as a desorption device,
A rotation center shaft that is rotated by a driving device at a predetermined angle;
A bearing body portion having a hollow sliding hole in which the rotation center shaft portion is rotatably arranged, and
A cooling water flow path for flowing cooling water and a hot water flow path for flowing warm water are formed in the rotation center shaft portion,
The bearing main body includes a cooling water inlet, a cooling water outlet, a hot water inlet, a hot water outlet, and an inlet of the heat transfer tube in the first adsorption / desorption device which is one of the plurality of adsorption / desorption devices. One side inlet connected, one side outlet connected to the outlet of the heat transfer tube in the first adsorption / desorption device, and the heat transfer tube in the second adsorption / desorption device which is the other of the plurality of adsorption / desorption devices The other side inlet connected to the inlet and the other side outlet connected to the outlet of the heat transfer tube in the second adsorption / desorption device are opened from the outer side to the hollow sliding hole to the inner peripheral surface of the hollow sliding hole. And
The cooling water flow path connects the cooling water inlet and the one side inlet and connects the one side outlet and the cooling water outlet to the heat transfer pipe in the first adsorption / desorption device. And supplying the cooling water from the hot water passage and connecting the hot water inlet and the other side inlet and connecting the other side outlet and the hot water outlet to each other in the second adsorption / desorption device. A first operating position for supplying hot water from a hot water supply source to the heat transfer tube;
The cooling water flow path connects the cooling water inlet and the other side inlet and connects the other side outlet and the cooling water outlet to supply the cooling water to the heat transfer tube in the second adsorption / desorption device. In the first adsorption / desorption device, cooling water is supplied from a source, and the warm water flow path is connected to the warm water inlet and the one side inlet, and the one side outlet and the warm water outlet are connected to each other. The fluid switching device is characterized in that the rotation center shaft portion is rotated to a second operation position where hot water is supplied from the hot water supply source to the heat transfer tube. ).

According to a second aspect of the present invention, there are provided a plurality of adsorption / desorption devices formed by inserting heat transfer tubes having a solid adsorbent disposed on the surface, an evaporator capable of communicating individually with the plurality of adsorption / desorption devices, and the plurality of adsorption / desorption devices. The adsorption / desorption device that is used in an adsorption refrigeration machine including a condenser that can communicate with the desorber individually, and that allows cooling water to flow through the heat transfer tube to function as an adsorber, and hot water to the heat transfer tube. A fluid switching device that sequentially switches the adsorption / desorption device that flows and functions as a desorption device,
A rotation center shaft that is rotated by a driving device at a predetermined angle;
A bearing body portion having a hollow sliding hole in which the rotation center shaft portion is rotatably arranged, and
A cooling water channel for flowing cooling water, a warm water channel for flowing hot water, and a recovered water channel for flowing cooling water or hot water as recovered water are formed in the rotation center shaft portion,
The bearing body has a cooling water inlet, a cooling water outlet, a hot water inlet, a hot water outlet, a recovered water inlet, a recovered water outlet, and each inlet of the heat transfer tube in the plurality of adsorption / desorption devices, respectively. A plurality of supply inlets connected to each other and a plurality of supply outlets connected to the respective outlets of the heat transfer tubes in the plurality of adsorption / desorption devices open from the outer side to the hollow sliding hole to the inner peripheral surface of the hollow sliding hole. Formed,
The supply inlet and the supply outlet are formed side by side in the axial direction of the hollow sliding hole, and the hollow sliding as a pair of the supply inlet and the supply outlet for each of the adsorption / desorption devices. It is formed at multiple locations in the circumferential direction of the hole,
The rotation position of the rotation center shaft portion is formed in the same number as the number of the plurality of adsorption / desorption devices,
The cooling water flow path communicates from the cooling water inlet to the cooling water outlet via one or more of the supply inlet and the supply outlet, and functions as the adsorber among the plurality of adsorption / desorption devices. An adsorption operation for supplying cooling water from a cooling water supply source to the heat transfer tubes in the one or more first adsorption / desorption devices to be caused;
The hot water flow channel communicates from the hot water inlet to the hot water outlet via one or more of the supply inlet and the supply outlet, and functions as the desorber among the plurality of adsorption / desorption devices. A desorption operation for supplying hot water from a hot water supply source to the heat transfer tubes in one or a plurality of second adsorption / desorption devices;
Cooling water (or hot water) supplied from a recovered water supply source is communicated from the recovered water inlet to the recovered water outlet via the plurality of supply inlets and the supply outlets by the recovered water channel. By supplying to the heat transfer tube in the third adsorption / desorption device that functions as a recovery device among the plurality of adsorption / desorption devices, hot water (or cooling water) remaining in the heat transfer tube is supplied to any of the other third In the fluid switching device, the recovery operation of pushing out to the heat transfer tube in the adsorption / desorption device is performed simultaneously at each rotation position of the rotation center shaft portion (Claim 6).

(First invention)
In the fluid switching device according to the first aspect of the present invention, the plurality of adsorption / desorption devices in the adsorption refrigeration unit are simultaneously switched between the adsorption device and the desorption device by rotating the rotation center shaft portion with respect to the bearing body portion. It is something that can be done. That is, according to this fluid switching device, a plurality of adsorption / desorption devices can be simultaneously switched between the adsorption device and the desorption device by one switching device. In addition, the plurality of adsorption / desorption devices can be sequentially switched between the adsorption device and the desorption device by the rotation of the rotation central shaft portion.

  The rotation center shaft portion can be rotated by one drive device, and the above switching can be performed by an extremely small number of actuators. In addition, since the cooling water channel and the hot water channel are formed in the rotation center shaft portion, piping for performing the switching can be extremely reduced. Thereby, the amount of heat lost at the time of switching between adsorption and desorption (the amount of heat in the piping and water in the piping) can be reduced, and COP (energy efficiency) can be improved. Therefore, the adsorption refrigerator can be miniaturized by using the fluid switching device of the first invention.

The fluid switching device of the first invention can be operated as follows.
When the first adsorption / desorption device functions as an adsorber and the second adsorption / desorption device functions as a desorption device, the rotation center shaft portion is set to the first operating position. At this time, the cooling water passage and the one side inlet are connected by the cooling water flow path of the rotation center shaft portion, and the one side outlet and the cooling water outlet are connected to each other in the first adsorption / desorption device from the cooling water supply source. Cooling water can be supplied to the heat transfer tubes. Further, at this time, the hot water passage and the other side inlet are connected and the other side outlet and the hot water outlet are connected by the hot water flow path of the rotation center shaft portion, so that the transfer from the hot water supply source to the second adsorption / desorption device is performed. Hot water can be supplied to the heat pipe.

  Further, when the first adsorption / desorption device is caused to function as a desorption device and the second adsorption / desorption device is caused to function as an adsorption device, the rotation center shaft portion is set to the second operation position. At this time, the cooling water passage and the other side inlet are connected by the cooling water flow path of the rotation center shaft portion, and the other side outlet and the cooling water outlet are connected to each other in the second adsorption / desorption device from the cooling water supply source. Cooling water can be supplied to the heat transfer tubes. At this time, the hot water inlet and the one-side inlet are connected and the one-side outlet and the hot-water outlet are connected by the hot water flow path of the rotation center shaft portion, so that the transfer from the hot water supply source to the first adsorption / desorption device is performed. Hot water can be supplied to the heat pipe.

(Second invention)
The fluid switching device according to the second aspect of the present invention is the plurality of adsorption / desorption devices constituting the adsorption refrigerator, wherein the rotation position of the rotation central shaft portion that simultaneously performs the adsorption operation, the desorption operation, and the recovery operation is set to a plurality of rotation positions. As many as the adsorption / desorption devices can be formed. Then, by rotating the rotation center shaft portion by a predetermined angle to each rotation position, the adsorption operation, the desorption operation, and the recovery operation can be sequentially repeated in each adsorption / desorption device.

  Also with the fluid switching device according to the second aspect of the present invention, the adsorber, the desorber, and the recovery can be switched simultaneously by one switching device. The rotation center shaft portion can be rotated by one drive device, and the above switching can be performed by an extremely small number of actuators. Moreover, since the cooling water channel, the hot water channel, and the recovery water channel are formed in the rotation center shaft portion, the number of pipes for performing the switching can be extremely reduced. Therefore, the adsorption refrigerator can be miniaturized by using the fluid switching device of the present invention.

Further, in the second invention, as the recovery operation, the cooling water (or hot water) supplied from the recovered water supply source is supplied to the heat transfer tube in any of the third adsorption / desorption devices, whereby the heat transfer tube is supplied. The remaining hot water (or cooling water) is pushed out to the heat transfer tube in any other third adsorption / desorption device. Then, when the rotation center shaft portion is rotated to the next rotation position, the heat transfer tube in the adsorption / desorption device functioning as an adsorber is filled with cooling water in advance and the transfer in the adsorption / desorption device functioning as a desorption device is performed. The inside of the heat pipe can be filled with warm water in advance.
As a result, when each adsorption / desorption device is switched from the adsorber to the desorption device or from the desorption device to the adsorber, the cooling water mixes with the hot water in the heat transfer pipe of each adsorption / desorption device, or the hot water remains as it is. It is possible to avoid mixing with cooling water as much as possible while maintaining the temperature. Therefore, temperature fluctuation of cooling water and unnecessary outflow of hot water can be suppressed as much as possible, and the COP (energy efficiency) of the adsorption refrigerator can be maintained high.

  As described above, according to the fluid switching device of the first and second inventions, a single switching device can simultaneously switch a plurality of adsorption / desorption devices to an adsorber and a desorption device, as well as actuators and piping. The number of uses can be reduced and energy efficiency can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS The block diagram which shows the adsorption | suction type refrigerator which uses the switching apparatus for fluid concerning Example 1, and uses a 1st adsorption / desorption device as an adsorber and operates as a 2nd adsorption / desorption device as a desorption device. BRIEF DESCRIPTION OF THE DRAWINGS The block diagram which shows the adsorption | suction type refrigerator which uses the switching apparatus for fluid concerning Example 1, and uses a 1st adsorption / desorption device as a desorption device, and operates a 2nd adsorption / desorption device as an adsorption device. Sectional drawing which shows the switching apparatus for fluid concerning Example 1 in which the rotation center axial part is in a 1st driving | running position. Sectional drawing which shows the switching apparatus for fluids concerning Example 1 in which the rotation center axial part is in a 1st collection position. Sectional drawing which shows the switching apparatus for fluids concerning the Example 1 in which the rotation center axial part is in a 2nd driving | running position. Sectional drawing which shows the switching apparatus for fluids concerning Example 1 in which the rotation center axial part is in a 2nd collection position. FIG. 4 is a cross-sectional view taken along an arrow A in FIG. 3, showing a rotation center shaft portion and a bearing main body portion with respect to an axial formation position of a cooling water inlet according to the first embodiment. FIG. 4 is a cross-sectional view taken along the arrow B in FIG. 3, illustrating the rotation center shaft portion and the bearing main body portion with respect to the axial formation position of the hot water inlet according to the first embodiment. FIG. 4 is a cross-sectional view taken along the arrow C in FIG. 3, showing the rotation center shaft portion and the bearing main body portion in the axial direction forming positions of the one side inlet and the other side inlet according to the first embodiment. FIG. 4 is a cross-sectional view taken along the arrow D in FIG. 3, showing a rotation center shaft portion and a bearing main body portion regarding the axial formation positions of the one-side outlet and the other-side outlet according to the first embodiment. FIG. 5 is a diagram illustrating a rotation center shaft portion and a bearing main body portion with respect to the axial formation position of the hot water outlet according to the first embodiment, and is a cross-sectional view taken along line E in FIG. 3. FIG. 6 is a diagram illustrating a rotation center shaft portion and a bearing main body portion with respect to an axial formation position of a cooling water outlet according to the first embodiment, and is a cross-sectional view taken along the arrow F in FIG. 3. Sectional drawing which shows the switching apparatus for fluid concerning Example 2 about the formation position of the inlet side in the cooling water flow path of the rotation center axial part, and the inlet side in a warm water flow path. Sectional drawing which shows the switching apparatus for fluid concerning Example 2 about the formation position of the collection | recovery water flow path of a rotation center axial part. The cross section of the axial formation position of each supply inlet in the bearing main body portion according to the second embodiment, the cross section of the axial formation position of each supply outlet in the bearing main body portion (cross section taken along the arrow G in FIG. 14). Explanatory drawing which describes the connection state of each adsorption / desorption device by describing (H arrow directional cross section in FIG. 14) on the upper side. Explanatory drawing which shows a state when the rotation center axial part rotates 45 degrees from the state of FIG. 15 concerning Example 2. FIG.

A preferred embodiment of the fluid switching device according to the first and second inventions described above will be described.
In the first aspect of the present invention, before the rotation center shaft portion rotates from the first operation position to the second operation position, the cooling water inlet and the other side inlet are separated by the cooling water flow path. And connecting the other side outlet and the one side inlet, and connecting the one side outlet and the cooling water outlet, while the hot water flow path connects the hot water inlet and the hot water outlet. By connecting and supplying the cooling water supplied from the cooling water supply source to the heat transfer tube in the second adsorption / desorption device, the hot water remaining in the heat transfer tube is transferred to the heat transfer tube in the first adsorption / desorption device. The rotation center shaft portion is rotated to the first recovery position to be pushed out to the heat pipe, and before the rotation center shaft portion is rotated from the second operation position to the first operation position, the cooling water flow path and the cooling water inlet. Connect to the one side entrance and above Connecting the side outlet and the other side inlet, and connecting the other side outlet and the cooling water outlet, and connecting the hot water inlet and the hot water outlet by the hot water flow path, By supplying the cooling water supplied from the cooling water supply source to the heat transfer tube in the first adsorption / desorption device, the hot water remaining in the heat transfer tube is pushed out to the heat transfer tube in the second adsorption / desorption device. 2 It is preferable to be configured to rotate to the recovery position (claim 2).

When the rotation center shaft portion is in the first operating position and the first adsorption / desorption device is used as the adsorber and the second adsorption / desorption device is used as the desorption device, the first adsorption / desorption device is operated. While the cooling water remains in the heat transfer tube, hot water remains in the heat transfer tube in the second adsorption / desorption device. Then, before turning the turning center shaft portion from the first operation position to the second operation position, the hot water remains in the heat transfer tube in the second adsorption / desorption device by temporarily setting the first collection position. The heat transfer pipe in the first adsorption / desorption device is supplied from the heat transfer tube in the second adsorption / desorption device from the state in which the cooling water remains, replacing the state filled with the cooling water supplied from the cooling water supply source. It can be replaced with a state filled with warm water.
As a result, when operating the adsorption refrigerator using the rotation center shaft portion as the second operating position and the first adsorption / desorption device as the desorption device and the second adsorption / desorption device as the adsorption device, the first adsorption / desorption is performed. It is possible to form a state in which hot water is prefilled in the heat transfer tube in the cooler and cooling water is prefilled in the heat transfer tube in the second adsorption / desorption device.

In addition, when the rotation center shaft portion is in the second operation position and the first adsorption / desorption device is used as the desorption device and the second adsorption / desorption device is used as the adsorption device, the adsorption refrigerator is operated. While hot water remains in the heat transfer tubes in the desorber, cooling water remains in the heat transfer tubes in the second adsorption / desorption device. Then, before the rotation center shaft portion is rotated from the second operation position to the first operation position, the hot water remains in the heat transfer tube in the first adsorption / desorption device by temporarily setting the second collection position. The heat transfer pipe in the second adsorption / desorption device is supplied from the heat transfer tube in the first adsorption / desorption device from the state in which the cooling water remains in the second adsorption / desorption device. It can be replaced with a state filled with warm water.
Thereby, when the adsorption refrigerator is operated with the rotation center shaft portion as the first operation position and the first adsorption / desorption device as the adsorber and the second adsorption / desorption device as the desorption device, the first adsorption / desorption is performed. It is possible to form a state in which the cooling water is pre-filled in the heat transfer tube in the cooler and the hot water is pre-filled in the heat transfer tube in the second adsorption / desorption device.

  Thus, in this case, when each adsorption / desorption device is switched from the adsorber to the desorption device or from the desorption device to the adsorber, the cooling water and the hot water are mixed in the heat transfer pipe of each adsorption / desorption device. You can avoid fitting as much as possible. Therefore, the temperature fluctuation of cooling water and warm water can be suppressed as much as possible, and the energy efficiency of the adsorption refrigerator can be maintained high.

  In addition, the rotation center shaft portion connects the hot water inlet and the one-side inlet through the hot water flow path and rotates the one side before turning from the first operation position to the second operation position. Connecting the side outlet and the other side inlet, and connecting the other side outlet and the hot water outlet, and connecting the cooling water inlet and the cooling water outlet by the cooling water flow path, By supplying the hot water supplied from the hot water supply source to the heat transfer tube in the second adsorption / desorption device, the cooling water remaining in the heat transfer tube is pushed out to the heat transfer tube in the first adsorption / desorption device. The pivot center shaft is rotated by the warm water channel before the pivot center shaft is rotated from the second operation position to the first operation position. Connect with the other side outlet and one side An inlet is connected, and the one-side outlet and the hot water outlet are connected. On the other hand, the cooling water inlet and the cooling water outlet are connected by the cooling water flow path and supplied from the hot water supply source. The heated water is supplied to the heat transfer tube in the first adsorption / desorption device, thereby rotating the cooling water remaining in the heat transfer tube to the second recovery position for pushing the cooling water to the heat transfer tube in the second adsorption / desorption device. It is preferable to be configured as described above (claim 3).

  In this case, as in the case of using the cooling water supplied from the cooling water supply source by the hot water supplied from the hot water supply source, each adsorption / desorption device is moved from the adsorber to the desorption device, or from the desorption device to the adsorber. When switching to, it is possible to avoid mixing cooling water and hot water as much as possible in the heat transfer tubes of the respective adsorption / desorption devices. Therefore, the temperature fluctuation of cooling water and warm water can be suppressed as much as possible, and the energy efficiency of the adsorption refrigerator can be maintained high.

The cooling water inlet, the cooling water outlet, the hot water inlet, the hot water outlet, the one side inlet, and the one side outlet are formed at different positions in the axial direction of the hollow sliding hole. The other-side inlet and the other-side outlet are formed at positions opposite to the one-side inlet and the one-side outlet in the circumferential direction of the hollow sliding hole. It is preferable that the cooling water flow path and the hot water flow path in the central shaft portion are formed in a plurality of dispersed positions at positions in the axial direction and the circumferential direction.
In this case, it is appropriate to form the respective inlets and outlets of the cooling water and the hot water, and the formation of the cooling water flow path and the hot water flow path in the rotation center shaft portion can be facilitated.

Further, the one side inlet and the one side outlet and the other side inlet and the other side outlet correspond to a plurality of sets of the adsorption / desorption devices in pairs, or in the circumferential direction of the hollow sliding hole or It is formed in a plurality of locations in the axial direction, and when the rotation center shaft portion is rotated to the first operation position and to the second operation position, the transmission in the plurality of sets of adsorption / desorption devices is performed. It is preferable to supply the heat pipe to the cooling water and the hot water at the same time.
In this case, adsorption and desorption can be simultaneously performed in a plurality of sets of adsorption / desorption devices by one fluid switching device. The large adsorption refrigeration machine having a higher cooling capacity can be operated by the rotation operation of the rotation center shaft portion in one fluid switching device.

Embodiments of the fluid switching device of the present invention will be described below with reference to the drawings.
Example 1
As shown in FIGS. 1 and 2, the fluid switching device 5 of this example includes two adsorption / desorption devices 2 </ b> A and 2 </ b> B that are inserted through a heat transfer tube 21 having a solid adsorbent 211 disposed on the surface, and two adsorption / desorption devices. It is used in an adsorption refrigeration machine 1 provided with an evaporator 31 that can be individually communicated with the vessels 2A and 2B and a condenser 32 that can be individually communicated with the two adsorption / desorption devices 2A and 2B. The fluid switching device 5 includes an adsorption / desorption device 2A (or 2B) that causes the cooling water C to flow through the heat transfer tube 21 to function as the adsorber X1, and an adsorption / desorption that causes the hot water H to flow through the heat transfer tube 21 to function as the desorption device X2. The device 2B (or 2A) is configured to be sequentially switched.

As shown in FIG. 3, the fluid switching device 5 includes a rotation center shaft portion 6 that is rotated by a predetermined angle by a drive device, and a hollow sliding hole 71 that rotatably arranges the rotation center shaft portion 6. The bearing main body portion 7 is provided.
The rotation center shaft portion 6 is formed with cooling water flow paths 61A to 61E for flowing the cooling water C and hot water flow paths 62A to 62C for flowing the hot water H. The bearing body 7 includes a cooling water inlet 81A, a cooling water outlet 81B, a hot water inlet 82A, a hot water outlet 82B, and a heat transfer tube in the first adsorption / desorption device 2A that is one of the two adsorption / desorption devices 2A and 2B. One side inlet 83A connected to the inlet 21, one side outlet 83B connected to the outlet of the heat transfer tube 21 in the first adsorption / desorption device 2A, and the second adsorption / desorption device which is the other of the two adsorption / desorption devices 2A and 2B The other side inlet 84 </ b> A connected to the inlet of the heat transfer tube 21 in 2 </ b> B and the other side outlet 84 </ b> B connected to the outlet of the heat transfer tube 21 in the second adsorption / desorption device 2 </ b> B are connected to the hollow sliding hole 71 from the outside. An opening is formed in the inner peripheral surface.

  As shown in FIGS. 1 and 3, the fluid switching device 5 has a first operating position 601 that causes the first adsorption / desorption device 2A to function as the adsorption device X1 and the second adsorption / desorption device 2B to function as the desorption device X2. As shown in FIGS. 2 and 5, the rotation center shaft portion 6 is moved to the second operation position 603 where the first adsorption / desorption device 2A functions as the desorption device X2 and the second adsorption / desorption device 2B functions as the adsorption device X1. Is configured to rotate.

As shown in FIG. 3, at the first operating position 601, the cooling water passages 61A to 61E connect the cooling water inlet 81A and the one side inlet 83A and connect the one side outlet 83B and the cooling water outlet 81B. The cooling water C is supplied from the cooling water supply source (cooling tower) 41 to the heat transfer tube 21 in the first adsorption / desorption device 2A, and the hot water inlet 82A and the other inlet 84A are connected by the hot water flow paths 62A to 62C. At the same time, the other outlet 84B and the hot water outlet 82B are connected to supply the hot water H from the hot water supply source (hot water tank) 43 to the heat transfer pipe 21 in the second adsorption / desorption device 2B.
As shown in FIG. 5, at the second operating position 603, the cooling water passages 61A to 61E connect the cooling water inlet 81A and the other inlet 84A and connect the other outlet 84B and the cooling water outlet 81B. The cooling water C is supplied from the cooling water supply source 41 to the heat transfer tube 21 in the second adsorption / desorption device 2B, and the hot water inlet 82A and the one side inlet 83A are connected by the hot water flow paths 62A to 62C and the one side The outlet 83B and the hot water outlet 82B are connected, and hot water H is supplied from the hot water supply source 43 to the heat transfer tube 21 in the first adsorption / desorption device 2A.

Hereinafter, the fluid switching device 5 of this example will be described in detail with reference to FIGS.
First, the adsorption refrigerator 1 of this example will be described.
Here, FIG. 1 and FIG. 2 are diagrams showing the configuration of the adsorption refrigerator 1, and FIG. 2 shows a state where the adsorber X1 and the desorber X2 are switched from the state of FIG. In each figure, the fluid switching device 5 is schematically shown by separating it into an inlet side portion and an outlet side portion for convenience of drawing.
As shown in each drawing, the adsorption refrigerator 1 of this example repeats adsorption and desorption of the refrigerant vapor A to and from the solid adsorbent 211 in the adsorber X1 and the desorber X2, and the evaporator 31 and the condenser 32 The coolant A is circulated to produce the cold water W in the evaporation pipe 311 inserted into the evaporator 31.

Refrigerant A (sometimes referred to as refrigerant vapor A) can be circulated inside the adsorption / desorption devices 2A and 2B, the evaporator 31 and the condenser 32, and the adsorption / desorption devices 2A and 2B, evaporation The inside of the vessel 31 and the condenser 32 is in a vacuum state so that the refrigerant A is easily evaporated. The inside of the evaporator 31 is about 1/100 atm, and the inside of the condenser 32 is about 1/20 atm. The solid adsorbent 211 in this example is silica gel, and the refrigerant A is water.
A communication path 33 through which the refrigerant vapor A passes is formed between each of the adsorption / desorption devices 2A, 2B and the evaporator 31 and between each of the adsorption / desorption devices 2A, 2B and the condenser 32. A damper 34 that can be opened and closed by its own weight and the pressure of the refrigerant vapor A is disposed in each communication path 33.

As shown in FIGS. 1 and 2, the heat transfer tubes 21 of the adsorption / desorption devices 2 </ b> A and 2 </ b> B have one side inlet 83 </ b> A of the fluid switching device 5 that switches between the cooling water C and the hot water H to be sent to the heat transfer tubes 21. The pipe is connected to the one-side outlet 83B, the other-side inlet 84A, and the other-side outlet 84B.
An evaporator pipe 311 through which the cold water W passes is inserted in the evaporator 31, and the evaporator pipe 311 is connected to the cold water tank 44. The evaporation pipe 311 is connected to a refrigeration facility 45 as an object to be cooled for cooling by supplying cold water W. The refrigeration equipment 45 can be an air conditioning system, a refrigerator, or the like. The evaporation pipe 311 is circulated through the evaporator 31, the cold water tank 44, and the refrigeration equipment 45.

A condenser tube 321 through which the cooling water C passes is inserted into the condenser 32, and the condenser tube 321 is connected to the cooling tower 41. The cooling water C passes from the cooling tower 41 through the cooling water flow paths 61A to 61E in the heat transfer pipe 21 of each of the adsorption / desorption devices 2A and 2B and the rotation center shaft portion 6 of the fluid switching device 5, and then enters the condensation pipe 321. Supplied and circulated from the condenser pipe 321 to the cooling tower 41.
In the condenser 32, there is provided a tray 35 that receives the refrigerant A (water in this example) condensed and liquefied by the condenser tube 321. A circulation pipe 36 for supplying the refrigerant A accumulated in the tray 35 to the surface of the evaporation pipe 311 in the evaporator 31 is provided between the tray 35 and the evaporator 31.

The hot water H supplied to the heat transfer tubes 21 of each of the adsorption / desorption devices 2A and 2B is heated using exhaust heat emitted from the heat generating equipment 42 that generates heat. The heat generating equipment 42 can be a solar heat utilization system, a gas engine system, a boiler, or equipment for generating steam drain. The hot water H is made by using the exhaust heat generated by the heat generating equipment 42, stored in the hot water tank 43, and then passed through the hot water flow paths 62 </ b> A to 62 </ b> C in the rotation center shaft portion 6 of the fluid switching device 5. It is supplied to the inlet of the heat transfer tube 21 of the adsorption / desorption devices 2A and 2B. Further, the hot water H is circulated from the outlets of the heat transfer tubes 21 of the adsorption / desorption devices 2A and 2B to the heat generating equipment 42 via the hot water flow paths 62A to 62C in the rotation center shaft portion 6 of the fluid switching device 5. It has become so.
The cooling water C is water at 25 to 35 ° C. (about 30 ° C.), and the warm water H is water heated to 70 to 90 ° C. (about 80 ° C.). Moreover, the cold water W in the evaporation pipe 311 of the evaporator 31 is cooled to 9 to 14 ° C. (about 11 ° C.).

  The adsorption refrigerator 1 has an adsorption / desorption device 2A (or 2B) that allows cooling water C to flow through the heat transfer tube 21 to function as the adsorption device X1, and an adsorption / desorption that causes warm water H to flow through the heat transfer tube 21 to function as the desorption device X2. The apparatus 2B (or 2A) is operated by alternately switching at predetermined time intervals to cool the cold water W in the evaporation pipe 311 inserted into the evaporator 31. Thereby, the adsorption refrigeration machine 1 continuously supplies the produced cold water W from the cold water tank 44 to the refrigeration equipment 45.

The operation of the adsorption refrigerator 1 is performed as follows.
As shown in FIG. 1, when the cooling water C is supplied to the heat transfer tube 21 in the first adsorption / desorption device 2A, the first adsorption / desorption device 2A functions as the adsorber X1. At this time, the solid adsorbent 211 disposed on the surface of the heat transfer tube 21 in the first adsorption / desorption device 2A is cooled, and the refrigerant vapor A is adsorbed by the solid adsorbent 211 by an adsorption reaction. Then, the pressure in the first adsorption / desorption device 2A decreases, so that the pressure in the first adsorption / desorption device 2A becomes lower than the pressure in the evaporator 31 and the pressure in the condenser 32. Due to this pressure difference, the damper 34 in the communication passage 33 between the first adsorption / desorption device 2A and the evaporator 31 is opened, and the damper 34 in the communication passage 33 between the first adsorption / desorption device 2A and the condenser 32 is opened. close up. Then, the refrigerant vapor A in the evaporator 31 flows into the first adsorption / desorption device 2A, and heat as vaporization heat is taken from the surface of the evaporation pipe 311 in the evaporator 31 to cool the cold water W in the evaporation pipe 311. can do.

  On the other hand, as shown in the figure, when the cooling water C is supplied to the heat transfer tube 21 in the first adsorption / desorption device 2A, the hot water H is supplied to the heat transfer tube 21 in the second adsorption / desorption device 2B. When the hot water H is supplied to the heat transfer tube 21 in the second adsorption / desorption device 2B, the second adsorption / desorption device 2B functions as the desorption device X2. At this time, the solid adsorbent 211 disposed on the surface of the heat transfer tube 21 in the second adsorption / desorption device 2B is heated, and the refrigerant vapor A is desorbed from the solid adsorbent 211 by a desorption reaction. And when the pressure in the 2nd adsorption / desorption device 2B rises, the pressure in the 2nd adsorption / desorption device 2B becomes higher than the pressure in the evaporator 31 and the pressure in the condenser 32. Due to this pressure difference, the damper 34 in the communication passage 33 between the second adsorption / desorption device 2B and the evaporator 31 is closed, and the damper 34 in the communication passage 33 between the second adsorption / desorption device 2B and the condenser 32 is closed. open. And the refrigerant | coolant vapor | steam A in the 2nd adsorption / desorption device 2B flows in into the condenser 32, and this refrigerant | coolant vapor | steam A is condensed with the cooling water C which flows through the condensation pipe | tube 321 in the condenser 32. The condensed refrigerant vapor A is circulated into the evaporator 31 through the circulation pipe 36.

Thereafter, when the amount of the refrigerant vapor A adsorbed by the solid adsorbent 211 in the first adsorber / desorber 2A functioning as the adsorber X1 approaches the saturation amount, as shown in FIG. By rotating the moving central shaft portion 6, the hot water H flows through the heat transfer tube 21 in the first adsorption / desorption device 2A, and the cooling water C flows through the heat transfer tube 21 in the second adsorption / desorption device 2B. The desorption device 2A is switched to the desorption device X2, and the second adsorption / desorption device 2B is switched to the adsorption device X1. Then, the second adsorber / desorber 2B is caused to function as the adsorber X1 as described above, and the first adsorber / desorber 2A is functioned as the desorber X2 as described above.
Thereafter, similarly, the cooling water C and the hot water H that flow through the heat transfer tube 21 in the first adsorption / desorption device 2A and the heat transfer tube 21 in the second adsorption / desorption device 2B are alternately switched. Thereby, the adsorber X1 and the desorber X2 are alternately switched at predetermined time intervals in the two adsorption / desorption devices 2A and 2B, and the cold water W produced in the evaporation pipe 311 is refrigerated via the cold water tank 44. 45 can be continuously supplied.

Next, the fluid switching device 5 of this example will be described.
In the fluid switching device 5 of this example, in order to prevent the cooling water C and the hot water H from being mixed when switching between the adsorber X1 and the desorber X2, the first operation of the rotation center shaft portion 6 is performed. In addition to forming the position 601 and the second operation position 603, as shown in FIGS. 4 and 6, the first recovery position 602 and the second recovery position 604 of the rotation center shaft portion 6 are formed. The fluid switching device 5 is configured to sequentially and repeatedly rotate the rotation center shaft portion 6 to a first operation position 601, a first recovery position 602, a second operation position 603, and a second recovery position 604 by a driving device. ing.

  As shown in FIG. 4, the rotation center shaft portion 6 rotates to the first recovery position 602 before rotating from the first operation position 601 to the second operation position 603. When the rotation center shaft portion 6 is at the first recovery position 602, the cooling water passages 61A to 61E connect the cooling water inlet 81A and the other side inlet 84A and connect the other side outlet 84B and the one side inlet 83A. In addition, the one-side outlet 83B and the cooling water outlet 81B are connected, and the hot water inlet 82A and the hot water outlet 82B are connected by the hot water flow paths 62A to 62C. Then, by supplying the cooling water C supplied from the cooling water supply source 41 to the heat transfer tube 21 in the second adsorption / desorption device 2B, the hot water H remaining in the heat transfer tube 21 is transferred in the first adsorption / desorption device 2A. Extrude to heat tube 21.

The rotation center shaft portion 6 is at the first operation position 601 and the adsorption refrigerator 1 is operated with the first adsorption / desorption device 2A as the adsorber X1 and the second adsorption / desorption device 2B as the desorption device X2. Sometimes, the cooling water C remains in the heat transfer tube 21 in the first adsorption / desorption device 2A, while the hot water H remains in the heat transfer tube 21 in the second adsorption / desorption device 2B. And before rotating the rotation center axis | shaft part 6 from the 1st operation position 601 to the 2nd operation position 603, by once making it the 1st collection position 602, the heat exchanger tube 21 in the 2nd adsorption / desorption device 2B is obtained. The inside of the heat transfer pipe 21 in the first adsorption / desorption device 2A is changed from the state where the hot water H remains to the state filled with the cooling water C supplied from the cooling water supply source 41. It can be replaced with a state filled with hot water H supplied from the heat transfer tube 21 in the second adsorption / desorption device 2B.
Accordingly, as shown in FIG. 5, the rotation center shaft portion 6 is set to the second operating position 603, the first adsorption / desorption device 2A is used as the desorption device X2, and the second adsorption / desorption device 2B is used as the adsorption device X1. When the refrigerator 1 is operated, the heat transfer tube 21 in the first adsorption / desorption device 2A is pre-filled with hot water H, and the heat transfer tube 21 in the second adsorption / desorption device 2B is pre-filled with cooling water C. A state can be formed.

  As shown in FIG. 6, the rotation center shaft portion 6 rotates to the second recovery position 604 before rotating from the second operation position 603 to the first operation position 601. When the rotation center shaft portion 6 is at the second recovery position 604, the cooling water passages 61A to 61E connect the cooling water inlet 81A and the one side inlet 83A and connect the one side outlet 83B and the other side inlet 84A. In addition, the other side outlet 84B and the cooling water outlet 81B are connected, and the hot water inlet 82A and the hot water outlet 82B are connected by the hot water flow paths 62A to 62C. Then, by supplying the cooling water C supplied from the cooling water supply source 41 to the heat transfer tube 21 in the first adsorption / desorption device 2A, the hot water H remaining in the heat transfer tube 21 is transferred in the second adsorption / desorption device 2B. Extrude to heat tube 21.

The rotation center shaft portion 6 is in the second operation position 603, and the adsorption refrigerator 1 is operated with the first adsorption / desorption device 2A as the desorption device X2 and the second adsorption / desorption device 2B as the adsorption device X1. Sometimes, the hot water H remains in the heat transfer tube 21 in the first adsorption / desorption device 2A, while the cooling water C remains in the heat transfer tube 21 in the second adsorption / desorption device 2B. And before rotating the rotation center axis | shaft part 6 from the 2nd driving | running position 603 to the 1st driving | running | working position 601, it is once the 2nd collection | recovery position 604, By this, the heat exchanger tube 21 in 2 A of 1st adsorption / desorption devices. The inside of the heat transfer pipe 21 in the second adsorption / desorption device 2B is changed from the state where the hot water H remains to the state filled with the cooling water C supplied from the cooling water supply source 41. It can be replaced with a state filled with hot water H supplied from the heat transfer tube 21 in the first adsorption / desorption device 2A.
Thereby, as shown in FIG. 3, the rotation center shaft portion 6 is set to the first operating position 601, the first adsorption / desorption device 2A is made the adsorber X1, and the second adsorption / desorption device 2B is made the adsorption / desorption device X2. When the refrigerator 1 is operated, the heat transfer tube 21 in the first adsorption / desorption device 2A is pre-filled with cooling water C, and the heat transfer tube 21 in the second adsorption / desorption device 2B is pre-filled with hot water H. A state can be formed.

As shown in FIG. 3, the bearing main body portion 7 of this example has a cylindrical shape, and has lid portions 72 attached to both sides in the axial direction L thereof. The rotation center shaft portion 6 has support shafts 64 on both sides in the axial direction L, and each support shaft 64 is pivotally supported by a bearing portion 73 provided on each lid portion 72.
A driving device is connected to one lid portion 72 attached to the bearing main body portion 7. The drive device is constituted by a motor, a rotary actuator, and a cylinder that operate by electric power, air pressure, or the like. The output shaft portion of the drive device is connected to one support shaft 64 in the rotation center shaft portion 6.

  Further, in the fluid switching device 5 of this example, the cooling water inlet 81A, the cooling water outlet 81B, the hot water inlet 82A, the hot water outlet 82B, the other side inlet 84A, and the other side outlet 84B are hollow sliding. The holes 71 are formed at positions aligned in the axial direction L. The one-side inlet 83A and the one-side outlet 83B are formed at positions on the opposite side in the circumferential direction S of the hollow sliding hole 71 with respect to the other-side inlet 84A and the other-side outlet 84B. The cooling water flow paths 61 </ b> A to 61 </ b> E and the hot water flow paths 62 </ b> A to 62 </ b> C in the rotation center shaft portion 6 are formed in a plurality of positions at positions in the axial direction L and the circumferential direction S.

  In the rotation center shaft portion 6 of this example, in the vicinity of the center portion in the axial direction L, the one-side inlet 83A and the one-side outlet 83B, and the other-side inlet 84A and the other-side outlet 84B are formed at positions different from each other by 180 °. Do it. The one side inlet 83 </ b> A and the other side inlet 84 </ b> A are formed at one end side portion in the axial direction L of the rotation center shaft portion 6, and the one side outlet 83 </ b> B and the other side outlet 84 </ b> B are shafts of the rotation center shaft portion 6. It is formed at the other end portion in the direction L. At a position on one end side in the axial direction L with respect to the other side inlet 84A, a hot water inlet 82A and a cooling water inlet 81A are formed in order from a position close to the center in the axial direction L. At a position on the other end side in the axial direction L with respect to the other side outlet 84B, a hot water outlet 82B and a cooling water outlet 81B are formed in order from a position close to the center in the axial direction L.

  FIGS. 3-6 shows the cross section of the switching device 5 for fluid when the rotation center axis | shaft part 6 rotates to each position 601-604. 3 shows the rotation center shaft portion 6 at the first operating position 601, FIG. 4 shows the rotation center shaft portion 6 at the first recovery position 602, and FIG. 6 is at the second operation position 603, and FIG. 6 shows the rotation center shaft 6 at the second recovery position 604, respectively. In each figure, a lower side of the bearing body 7 is formed with a one-side inlet 83A and a first-side outlet 83B in order from the left side, and a cooling water inlet 81A is formed on the upper side of the bearing body 7 in order from the left side. The hot water inlet 82A, the other side inlet 84A, the other side outlet 84B, the hot water outlet 82B, and the cooling water outlet 81B are formed.

7 to 12 show the rotation center shaft portion 6 and the bearing main body portion 7 by cross sections at positions in the axial direction L. FIG. FIG. 7 shows the formation position in the axial direction L of the cooling water inlet 81A (cross section taken along line A in FIG. 3), and FIG. 8 shows the formation position in the axial direction L of the hot water inlet 82A (cross section taken along arrow B in FIG. 3). 9 shows the positions of the one-side inlet 83A and the other-side inlet 84A in the axial direction L (cross-section taken along line C in FIG. 3). FIG. 10 shows the one-side outlet 83B and the other-side outlet 84B in the axial direction L. FIG. 11 shows the formation position (cross section taken along the arrow E in FIG. 3) of the hot water outlet 82B, and FIG. 12 shows the axial direction L of the cooling water outlet 81B. The formation positions (cross-sectional view taken along arrow F in FIG. 3) are respectively shown. Each figure shows the state in which the rotation center shaft portion 6 is at the first operation position 601.
In the following description, an upper position is a first position P1, a left position is a second position P2, a lower position is a third position P3, and a right position is a fourth position P4. The formation state of 61A-61E and warm water flow path 62A-62C is demonstrated.

  As shown in FIGS. 3 to 6, the first cooling water passage 61 </ b> A, the second cooling water passage 61 </ b> B, and the first hot water passage 62 </ b> A are formed on one end side in the axial direction L of the rotation center shaft portion 6. ing. In addition, a third cooling water channel 61C is formed in the central portion of the rotation center shaft portion 6 in the axial direction L. A second hot water flow path 62B is formed from one end side in the axial direction L to the other end side in the axial direction L of the rotation center shaft portion 6. In addition, on the other end side in the axial direction L of the rotation center shaft portion 6, a fourth cooling water channel 61D, a fifth cooling water channel 61E, and a third hot water channel 62C are formed.

  As shown in FIG. 3, the first cooling water passage 61 </ b> A is arranged in the circumferential direction S from the cooling water inlet 81 </ b> A via the first position P <b> 1, the fourth position P <b> 4, and the third position P <b> 3 at the first operating position 601. After passing through the surface (see FIG. 7) and passing in the axial direction L at the third position P3 (see FIG. 8), it is formed to be connected to the one-side inlet 83A at the third position P3 (see FIG. 9). Further, as shown in FIG. 5, the first cooling water flow path 61 </ b> A passes from the cooling water inlet 81 </ b> A in the third position P <b> 3 in the axial direction L at the second operating position 603 (see FIGS. 7 and 8). In the third position P3, it is formed so as to be connected to the other side inlet 84A (see FIG. 9).

Further, as shown in FIG. 6, the first cooling water flow path 61A passes through the surface in the circumferential direction S via the fourth position P4, the first position P1, and the second position P2 at the second recovery position 604. (See FIG. 7) After passing in the axial direction L at the second position P2 (see FIG. 8), the second position P2 is formed so as to be connected to the one-side inlet 83A (see FIG. 9).
Further, as shown in FIG. 4, the second cooling water channel 61B passes through the cooling water inlet 81A from the cooling water inlet 81A in the second position P2 in the axial direction L at the first recovery position 602 (see FIGS. 7 and 8). The second position P2 is formed so as to be connected to the other side inlet 84A (see FIG. 9).

  Further, as shown in FIG. 4, the third cooling water channel 61C passes obliquely in the axial direction L from the other outlet 84B via the second position P2 and the fourth position P4 at the first recovery position 602. After that, it is formed so as to be connected to the one-side inlet 83A (see FIGS. 9 and 10). Further, as shown in FIG. 6, the third cooling water flow path 61C passes obliquely in the axial direction L from the one-side outlet 83B via the fourth position P4 and the second position P2 at the second recovery position 604. After that, it is formed so as to be connected to the other side inlet 84A (see FIGS. 10 and 9).

  As shown in FIG. 3, the fourth cooling water passage 61D passes through the third position P3 in the axial direction L from the one-side outlet 83B at the first operating position 601 (see FIGS. 10 and 11). After passing through the surface in the circumferential direction S via the position P3, the second position P2, and the first position P1 (see FIG. 12), the first position P1 is connected to the cooling water outlet 81B (see FIG. 12). reference). Further, as shown in FIG. 5, the fourth cooling water flow path 61 </ b> D passes from the other side outlet 84 </ b> B in the third position P <b> 3 in the axial direction L at the second operating position 603 (see FIGS. 10 and 11). The third position P3 is formed so as to be connected to the cooling water outlet 81B (see FIG. 12).

  Further, as shown in FIG. 4, the fifth cooling water flow path 61E passes in the axial direction L at the fourth position P4 from the one-side outlet 83B at the first recovery position 602 (see FIGS. 10 and 11). After passing through the surface in the circumferential direction S via the fourth position P4, the first position P1, and the second position P2 (see FIG. 12), the second position P2 is connected to the cooling water outlet 81B ( (See FIG. 12). Further, as shown in FIG. 6, the fifth cooling water flow path 61 </ b> E passes through the second recovery position 604 from the other outlet 84 </ b> B in the axial direction L at the fourth position P <b> 4 (see FIGS. 10 and 11). In the fourth position P4, the cooling water outlet 81B is formed (see FIG. 12).

  As shown in FIG. 3, the first hot water flow path 62A passes through the hot water inlet 82A from the hot water inlet 82A in the first position P1 in the axial direction L (see FIG. 8), and then at the first position P1. It is formed so as to be connected to the other side inlet 84A (see FIG. 9). Further, as shown in FIG. 5, the first hot water flow path 62A passes obliquely in the axial direction L from the hot water inlet 82A via the third position P3 and the first position P1 at the second operating position 603. (See FIGS. 8 and 7) After passing in the axial direction L at the first position P1 (see FIGS. 7 and 8), the first position P1 is formed so as to be connected to the one-side inlet 83A (see FIG. 9). ).

As shown in FIG. 4, the second hot water flow path 62B has an axial direction between the second position P2 and the third position P3 from the hot water inlet 82A via the second position P2 at the first recovery position 602. After passing through L (see FIGS. 8 to 10), it is formed so as to be connected to the hot water outlet 82B at the second position P2 (see FIG. 11). Further, as shown in FIG. 6, the second hot water flow path 62B is located between the second position P2 and the third position P3 from the hot water inlet 82A via the fourth position P4 at the second recovery position 604. After passing in the axial direction L (see FIGS. 8 to 10), passing through the surface in the circumferential direction S via the third position P3, the fourth position P4 and the first position P1, the hot water outlet at the first position P1 82B is formed (see FIG. 11).
Thus, in the fluid switching device 5 of this example, the first to fifth cooling water flow paths 61A to 61E and the first to third hot water flow paths 62A to 62C are formed in the rotation center shaft portion 6. Thus, the first and second operation positions 601 and 603 and the first and second recovery positions 602 and 604 of the rotation center shaft portion 6 can be formed.

The fluid switching device 5 of this example can be operated as follows.
As shown in FIG. 1, when the first adsorbing / desorbing device 2A functions as the adsorbing device X1 and the second adsorbing / desorbing device 2B functions as the desorbing device X2, as shown in FIG. The operation position 601 is set. At this time, the cooling water inlet 81A and the one-side inlet 83A are connected by the first cooling water passage 61A of the rotation center shaft portion 6, and the one-side outlet 83B and the cooling water outlet are connected by the fourth cooling water passage 61D. 81B is connected, and the cooling water C can be supplied from the cooling water supply source 41 to the heat transfer tube 21 in the first adsorption / desorption device 2A. At this time, the hot water inlet 82A and the other side inlet 84A are connected by the first hot water channel 62A of the rotation center shaft portion 6, and the other side outlet 84B and the hot water outlet are connected by the second hot water channel 62B. 82B is connected, and hot water H can be supplied from the hot water supply source 43 to the heat transfer tube 21 in the second adsorption / desorption device 2B.

  When the hot water H remaining in the heat transfer tube 21 in the second adsorption / desorption device 2B is collected and used in the heat transfer tube 21 in the first adsorption / desorption device 2A, as shown in FIG. Set to 1 collection position 602. At this time, the cooling water inlet 81A and the other side inlet 84A are connected by the second cooling water channel 61B of the rotation center shaft portion 6, and the other side outlet 84B and the one side inlet are connected by the third cooling water channel 61C. 83A is connected, and the first outlet 83B and the cooling water outlet 81B are connected by the fifth cooling water channel 61E. Then, the cooling water C is supplied from the cooling water supply source 41 to the heat transfer pipe 21 in the second adsorption / desorption device 2B via the second cooling water flow path 61B, so that the hot water H remaining in the heat transfer pipe 21 is third. It can push out to the heat exchanger tube 21 in the 1st adsorption / desorption device 2A via the cooling water flow path 61C.

  As shown in FIG. 2, when the first adsorption / desorption device 2A is made to function as the desorption device X2 and the second adsorption / desorption device 2B is made to function as the adsorption device X1, as shown in FIG. The second operation position 603 is set. At this time, the cooling water inlet 81A and the other inlet 84A are connected by the first cooling water passage 61A of the rotation center shaft portion 6, and the other outlet 84B and the cooling water outlet are connected by the fourth cooling water passage 61D. 81B is connected, and the cooling water C can be supplied from the cooling water supply source 41 to the heat transfer tube 21 in the second adsorption / desorption device 2B. At this time, the hot water inlet 82A and the one-side inlet 83A are connected by the first hot water channel 62A of the rotation center shaft portion 6, and the one-side outlet 83B and the hot water outlet are connected by the third hot water channel 62C. 82B is connected, and hot water H can be supplied from the hot water supply source 43 to the heat transfer tube 21 in the first adsorption / desorption device 2A.

  Further, when the hot water H remaining in the heat transfer tube 21 in the first adsorption / desorption device 2A is recovered and used in the heat transfer tube 21 in the second adsorption / desorption device 2B, as shown in FIG. 2. Set to the collection position 604. At this time, the cooling water inlet 81A and the one-side inlet 83A are connected by the second cooling water passage 61B of the rotation center shaft portion 6, and the one-side outlet 83B and the other-side inlet are connected by the third cooling water passage 61C. 84A is connected, and the other-side outlet 84B and the cooling water outlet 81B are connected by the fifth cooling water channel 61E. Then, by supplying the cooling water C from the cooling water supply source 41 to the heat transfer pipe 21 in the first adsorption / desorption device 2A via the second cooling water flow path 61B, the hot water H remaining in the heat transfer pipe 21 is thirdly supplied. It can push out to the heat exchanger tube 21 in the 2nd adsorption / desorption device 2B via the cooling water flow path 61C.

  The time for maintaining the rotation center shaft 6 at the first operation position 601 and the second operation position 603 is longer than the time for maintaining the rotation center shaft 6 at the first recovery position 602 and the second recovery position 604. become longer. The time for which the rotation center shaft portion 6 is maintained at the first operation position 601 and the second operation position 603 is the refrigerant adsorbed by the solid adsorbent 211 after the adsorption of the refrigerant vapor A to the solid adsorbent 211 is started. It can be set as the time (for example, several minutes) until the steam A becomes close to saturation. On the other hand, the time for maintaining the rotation center shaft portion 6 at the first recovery position 602 and the second recovery position 604 pushes the cooling water C remaining in the heat transfer tube 21 in the adsorber X1 to the heat transfer tube 21 in the desorber X2. It is possible to set the time required for the heat transfer (for example, several seconds) and the time required for pushing out the hot water H remaining in the heat transfer tube 21 in the desorber X2 to the heat transfer tube 21 in the adsorber X1 (for example, several seconds).

In the fluid switching device 5 of this example, the two adsorption / desorption devices 2A and 2B in the adsorption refrigeration machine 1 are connected to the adsorption device X1 by rotating the rotation central shaft portion 6 with respect to the bearing body portion 7. It is possible to switch to the desorber X2 at the same time. That is, according to the fluid switching device 5, the two adsorption / desorption devices 2A and 2B can be simultaneously switched to the adsorption device X1 and the desorption device X2 by one switching device. Further, the two adsorption / desorption devices 2A and 2B can be sequentially switched between the adsorption device X1 and the desorption device X2 by the rotation of the rotation central shaft portion 6.
And the rotation center axis | shaft part 6 can be rotated by one drive device, and the said switching can be performed with very few actuators. In addition, since the first to fifth cooling water passages 61A to 61E and the first to third hot water passages 62A to 62C are formed in the rotation center shaft portion 6, piping for performing the switching is also extremely high. Can be reduced. Therefore, the adsorption refrigeration machine 1 can be downsized by using the fluid switching device 5 of this example.

  Therefore, according to the fluid switching device 5 of this example, the two adsorption / desorption devices 2A and 2B can be simultaneously switched to the adsorption device X1 and the desorption device X2 by one switching device, and the actuator and piping The number of types used can be reduced, and energy efficiency (COP) can be improved.

Although illustration is omitted, in the fluid switching device 5, the following configuration is adopted, the cooling water inlet 81A and the cooling water outlet 81B are replaced with the hot water inlet 82A and the hot water outlet 82B, and the cooling water flow paths 61A to 61E are replaced. The operation can be performed with the hot water passages 62A to 62C and the hot water passages 62A to 62C as the cooling water passages 61A to 61E.
At the first recovery position 602, the hot water H supplied from the hot water supply source 43 is supplied to the heat transfer tube 21 in the second adsorption / desorption device 2B functioning as the adsorber X1, thereby supplying the heat transfer tube 21 to the heat transfer tube 21. The remaining cooling water C is pushed out to the heat transfer tube 21 in the first adsorption / desorption device 2A, and in the second recovery position 604, the hot water H supplied from the hot water supply source 43 functions as the adsorber X1. By supplying the heat transfer tube 21 in the heat exchanger 2A, the cooling water C remaining in the heat transfer tube 21 can be pushed out to the heat transfer tube 21 in the second adsorption / desorption device 2B.

  In the fluid switching device 5, the one-side inlet 83A and the one-side outlet 83B and the other-side inlet 84A and the other-side outlet 84B correspond to the pair of adsorbing / desorbing devices 2A and 2B, and are slid The holes 71 can be formed at a plurality of locations in the circumferential direction S or the axial direction L. When the rotation center shaft portion 6 is rotated to the first operation position 601 and to the second operation position 603, the cooling water C is supplied to the heat transfer tubes 21 in the plural sets of adsorption / desorption devices 2A and 2B. Supply and supply of warm water H can be performed simultaneously.

(Example 2)
As shown in FIGS. 13 to 16, the fluid switching device 5 of the present example is a center of rotation that simultaneously performs an adsorption operation, a desorption operation, and a recovery operation in a plurality of adsorption / desorption devices 2 that constitute the adsorption refrigerator 1. The number of rotation positions of the shaft portion 6 can be the same as the number of the adsorption / desorption devices 2 (eight in this example). Then, by rotating the rotation center shaft portion 6 by a predetermined angle to each rotation position, the adsorption operation, the desorption operation, and the collection operation can be sequentially repeated in each adsorption / desorption device 2.

As shown in FIGS. 13 and 14, in the rotation center shaft portion 6 of the fluid switching device 5 of this example, the cooling water flow paths 61 </ b> A to 61 </ b> E for flowing the cooling water C and the hot water flow paths 62 </ b> A to 62 </ b> C for flowing the hot water H are provided. And the recovery water flow paths 63F-63H which flow the cooling water C or the warm water H as the recovery water R are formed.
The bearing body 7 of this example includes a cooling water inlet 81A, a cooling water outlet 81B, a hot water inlet 82A, a hot water outlet 82B, a recovered water inlet 85A, a recovered water outlet 85B, and a plurality of adsorption / desorption devices 2. A plurality of supply inlets 86 </ b> A respectively connected to the respective inlets of the heat transfer tubes 21 and a plurality of supply outlets 86 </ b> B respectively connected to the respective outlets of the heat transfer tubes 21 in the plurality of adsorption / desorption devices 2 are hollow from the outside with respect to the hollow sliding hole 71. An opening is formed in the inner peripheral surface of the sliding hole 71.
The supply inlet 86A and the supply outlet 86B are formed side by side in the axial direction L of the hollow sliding hole 71, and a hollow sliding as a pair of the supply inlet 86A and the supply outlet 86B for each adsorption / desorption device 2 is provided. The holes 71 are formed at a plurality of locations (eight locations in this example) in the circumferential direction S.

As shown in FIGS. 15 and 16, the rotation center shaft portion 6 of this example has the same number of rotation positions as the plurality of adsorption / desorption devices 2 (in this example, the adsorption operation, the desorption operation, and the collection operation). Only 8).
In this example, the adsorbing / desorbing device 2 causes the three adsorbing / desorbing devices 2 adjacent to each other to function as the adsorbing device X1, and the three adsorbing / desorbing devices 2 adjacent to each other to function as the adsorbing device X2. And two adsorption / desorption devices 2 located between the adsorption / desorption device 2 functioning as the desorption device X2 are caused to function as the recovery device X3.
In the fluid switching device 5 of this example, by driving one drive device, the rotation center shaft portion 6 is rotated by 45 ° at predetermined time intervals, and the adsorber X1 and the desorber X2 are recovered in two. The two recovery devices X3 are switched to the adsorption device X3 and the adsorption device X1 and the desorption device X2, respectively.

As shown in FIGS. 13 and 15, in the adsorption operation of the fluid switching device 5, the cooling water flow paths 61 </ b> A to 61 </ b> E from the cooling water inlet 81 </ b> A through the three supply inlets 86 </ b> A and the three supply outlets 86 </ b> B, Cooling water C is supplied from the cooling water supply source 41 to the heat transfer tubes 21 in the three first adsorption / desorption devices 2 that communicate with the cooling water outlet 81B and function as the adsorber X1 among the eight adsorption / desorption devices 2.
In the desorption operation of the fluid switching device 5, the hot water flow paths 62A to 62C communicate with the hot water outlet 82B from the hot water inlet 82A via the three supply inlets 86A and the three supply outlets 86B. Hot water H is supplied from the hot water supply source 43 to the heat transfer tubes 21 in the three second adsorption / desorption devices 2 that function as the desorption device X2 among the desorption devices 2.

  As shown in FIGS. 14 and 15, in the recovery operation of the fluid switching device 5, the recovery water flow paths 63 </ b> F to 63 </ b> H cause the recovery water inlet 85 </ b> A to pass through the three supply inlets 86 </ b> A and the three supply outlets 86 </ b> B. Supplying the cooling water C supplied from the recovered water supply source 46 to the recovered water outlet 85B to the heat transfer tube 21 in the third adsorption / desorption device 2 that functions as the recovery device X3 among the eight adsorption / desorption devices 2. Thus, the hot water H remaining in the heat transfer tube 21 is pushed out to the heat transfer tube 21 in any other third adsorption / desorption device 2.

FIG. 13 shows the fluid switching device 5 by a cross-section of the formation positions of the inlet side of the cooling water flow paths 61A to 61E and the inlet side of the hot water flow paths 62A to 62C of the rotation center shaft portion 6. FIG. 14 shows the fluid switching device 5 by a cross-section at a position where the recovered water flow paths 63F to 63H of the rotation center shaft portion 6 are formed.
FIG. 15 is a cross-sectional view in the axial direction L of each supply inlet 86A in the bearing body 7 (cross-sectional view taken along the arrow G in FIG. 14), and the axial direction L of each supply outlet 86B in the bearing body 7 is downward. The cross section of the formation position (the cross section taken along the arrow H in FIG. 14) is shown on the upper side, and the connection state of each adsorption / desorption device 2 is shown. FIG. 16 shows a state when the rotation center shaft portion 6 is rotated by 45 ° from the state of FIG.

  In FIG. 15, FIG. 16, about each adsorption / desorption device 2, the 1st-8th adsorption / desorption device is shown with code | symbol 2A-2H. Moreover, in the same figure, the formation position of the circumferential direction S of each supply inlet 86A and each supply outlet 86B is shown with the codes | symbols 1-8. In addition, the inlet portion of the cooling water C is indicated by reference numeral C1, the outlet portion of the cooling water C is indicated by reference numeral C2, the inlet portion of the hot water H is indicated by reference numeral H1, the outlet portion of the hot water H is indicated by reference numeral H2, and the recovered water An inlet portion of R is indicated by a symbol R1, and an outlet portion of the recovered water R is indicated by a symbol R2.

As shown in FIG. 14, in the bearing main body portion 7 of the fluid switching device 5 of the present example, the cooling water inlet 81 </ b> A, the recovered water inlet 85 </ b> A, and the hot water inlet 82 </ b> A are formed on the one end side in the axial direction L. The cooling water outlet 81B, the recovered water outlet 85B, and the hot water outlet 82B are formed side by side in the axial direction L of the hollow sliding hole 71. .
Further, as shown in FIG. 15, the supply inlet 86 </ b> A and the supply outlet 86 </ b> B are arranged in the axial direction L of the bearing main body portion 7, and a plurality of sets (eight sets in this example) are arranged in the circumferential direction S of the bearing main body portion 7. It is formed. The plurality of sets of supply inlets 86A and supply outlets 86B are formed at equal intervals in the circumferential direction S as the first to eighth supply inlets 86A and the first to eighth supply outlets 86B.
The inlets of the heat transfer tubes 21 in the adsorption / desorption device 2 are connected to the first to eighth supply inlets 86A, respectively, and the heat transfer tubes 21 in the adsorption / desorption device 2 are connected to the first to eighth supply outlets 86B, respectively. The exit is connected.

  As shown in FIG. 13, the cooling water flow paths 61F to 61I of the present example have an axial direction L and a radial direction from the cooling water inlet 81A to the second supply inlet 86A on one end side in the axial direction L of the rotation center shaft portion 6. As shown in FIG. 15, the circumferential direction from the second supply outlet 86B to the third supply inlet 86A at the central portion in the axial direction L of the rotation center shaft part 6 as shown in FIG. From the third supply outlet 86B to the fourth supply inlet 86A in the second cooling water flow path portion 61G formed on the surface of S along the circumferential direction S and the central portion in the axial direction L of the rotation center shaft portion 6. A third cooling water flow passage 61H formed on the surface in the circumferential direction S along the circumferential direction S and a fourth supply outlet at the other end side in the axial direction L of the rotation center shaft 6 as shown in FIG. Shaped from the surface in the axial direction L and the circumferential direction S from 86B to the cooling water outlet 81B They were are constituted by a fourth coolant passage portion 61I.

  As shown in FIG. 13, the hot water flow paths 62F to 62I of the present example have an axial direction L and a radial direction on one end side in the axial direction L of the rotation center shaft portion 6 from the hot water inlet 82A to the sixth supply inlet 86A. As shown in FIG. 15, the circumferential direction S from the sixth supply outlet 86B to the seventh supply inlet 86A at the central portion in the axial direction L of the rotation center shaft part 6 as shown in FIG. The second warm water flow path portion 62G formed in the circumferential direction S on the surface and the central portion in the axial direction L of the rotation center shaft portion 6 are circumferential from the seventh supply outlet 86B to the eighth supply inlet 86A. The third hot water flow path portion 62H formed along the circumferential direction S on the surface in the direction S and the eighth supply outlet 86B on the other end side in the axial direction L of the rotation center shaft portion 6 as shown in FIG. Is formed on the surface in the axial direction L and the circumferential direction S from the hot water outlet 82B to the hot water outlet 82B. It is constituted by the flow path portion 62I.

  As shown in FIG. 14, the recovered water flow paths 63F to 63H of this example are arranged in the axial direction L and the radial direction from the recovered water inlet 85A to the first supply inlet 86A on one end side in the axial direction L of the rotation center shaft portion 6. In the central portion of the first recovered water flow path portion 63F and the rotation center shaft portion 6 in the axial direction L, the first supply outlet 86B to the fifth supply inlet 86A are formed obliquely in the axial direction L. On the other end side in the axial direction L of the second recovered water flow path portion 63G and the rotation center shaft portion 6, the surface of the axial direction L and the circumferential direction S is formed from the fifth supply outlet 86B to the recovered water outlet 85B. It is comprised by the 3rd collection | recovery water flow path part 63H.

  Also with the fluid switching device 5 of this example, the switching of the adsorption operation, the desorption operation, and the recovery operation can be simultaneously performed by one switching device. And the rotation center axis | shaft part 6 can be rotated by one drive device, and the said switching can be performed with very few actuators. Further, since the cooling water passages 61F to 61I, the hot water passages 62F to 62I, and the recovery water passages 63F to 63H are formed in the rotation center shaft portion 6, the number of pipes for performing the switching is extremely reduced. Can do. Therefore, the adsorption refrigeration machine 1 can be downsized by using the fluid switching device 5 of this example.

  Further, in this example, as the recovery operation, the cooling water C supplied from the recovered water supply source 46 is supplied to the heat transfer tubes 21 in any of the third adsorption / desorption devices 2, thereby remaining in the heat transfer tubes 21. The hot water H to be pushed out is pushed out to the heat transfer tube 21 in any other third adsorption / desorption device 2. And when the rotation center axis | shaft part 6 rotates to the next rotation position, while the heat exchanger tube 21 in the adsorption / desorption device 2 which functions as the adsorption device X1 is previously filled with the cooling water C, it functions as the desorption device X2. The heat transfer tube 21 in the adsorption / desorption device 2 to be filled can be filled with warm water H in advance.

  Thereby, when each adsorption / desorption device 2 is switched from the adsorber X1 to the desorption device X2, or from the desorption device X2 to the adsorber X1, the cooling water C is heated in the heat transfer pipe 21 of each adsorption / desorption device 2. It is possible to avoid mixing the cooling water C with the cooling water C as much as possible. Therefore, temperature fluctuation of the cooling water C and unnecessary outflow of the hot water H can be suppressed as much as possible, and the refrigeration performance and COP (energy efficiency) of the adsorption refrigeration machine 1 can be maintained high.

In the fluid switching device 5 of this example, in order to further increase the refrigeration performance and energy efficiency, the adsorber X1 and the desorber X2 are formed in a plurality of stages (three stages in this example).
When switching between the adsorber X1 and the desorber X2 is performed, the cooling water C that has entered the inlet of the heat transfer tube 21 in the adsorption / desorption device 2 functioning as the adsorber X1 is provided on the outer periphery in the vicinity of the inlet of the heat transfer tube 21. The solid adsorbent 211 is started to cool. Then, the refrigerant vapor A flows from the evaporator 31 into the adsorber X1 when the pressure in the adsorber X1 decreases and the pressure in the adsorber X1 becomes the same as the pressure in the evaporator 31. The refrigerant vapor A begins to be adsorbed by the solid adsorbent 211.

  At this time, since the solid adsorbent 211 provided on the outer periphery of the adsorber X1 in the vicinity of the outlet of the heat transfer tube 21 is not yet cooled, the refrigerant vapor A is desorbed. And this desorbed refrigerant | coolant vapor | steam A will be adsorb | sucked by the solid adsorbent 211 provided in the outer periphery of the entrance vicinity of the heat exchanger tube 21 in the same adsorption device X1. This becomes a factor of reducing the adsorption efficiency of the refrigerant vapor A flowing from the evaporator 31 to the adsorber X1.

On the other hand, even when the adsorption refrigerator 1 having the same capacity as a whole is formed, the capacity of one section of the adsorption / desorption device 2 is formed by forming the adsorption device X1 and the desorption device X2 in a plurality of stages as in this example. Becomes smaller. As a result, the temperature difference between the vicinity of the inlet and the outlet of the heat transfer tube 21 in the adsorption / desorption device 2 is reduced, and the adsorption efficiency of the refrigerant vapor A flowing from the evaporator 31 to the adsorber X1 can be improved.
In this way, by using a plurality of adsorbers X1 and shortening the time interval (cycle time) for rotating the rotation center shaft portion 6, more cold water W is added to the evaporation pipe 311 in the evaporator 31. Can produce.

  Further, the time interval for rotating the rotation center shaft portion 6 can be set according to the time for performing the collecting operation. Further, this time interval is determined by reducing the amount of fluid fed by the pump that feeds the recovered water R from the recovered water supply source 46 to the fluid switching device 5, or by temporarily stopping the operation of this pump, It is also possible to set an appropriate time interval at which the refrigerant vapor A is adsorbed on the adsorbent 211.

The recovered water R can be warm water H in addition to the cooling water C. And as recovery operation, by supplying the hot water H supplied from the recovery water supply source 46 to the heat transfer tube 21 in any of the third adsorption / desorption devices 2, the cooling water C remaining in the heat transfer tube 21 is It can also extrude to the heat transfer tube 21 in any other third adsorption / desorption device 2.
Also in this example, the other configurations of the adsorption refrigeration machine 1 and the fluid switching device 5 are the same as those of the first embodiment, and the same effects as those of the first embodiment can be obtained.

DESCRIPTION OF SYMBOLS 1 Adsorption-type refrigerator 2A, 2B Adsorption / desorption device 21 Heat transfer tube 211 Solid adsorbent 31 Evaporator 311 Evaporation tube 32 Condenser 321 Condensation tube 41 Cooling water supply source (cooling tower)
43 Hot water supply source (hot water tank)
DESCRIPTION OF SYMBOLS 5 Fluid switching device 6 Rotation center axis | shaft part 601 1st operation position 602 1st collection position 603 2nd operation position 604 2nd collection position 61A-61I Cooling water flow path 62A-62I Hot water flow path 63F-63H Recovery water flow path 7 Bearing body portion 71 Hollow sliding hole 81A Cooling water inlet 81B Cooling water outlet 82A Hot water inlet 82B Hot water outlet 83A One side inlet 83B One side outlet 84A Other side inlet 84B Other side outlet 85A Recovery water inlet 85B Recovery water outlet 86A Supply inlet 86B Supply outlet A Refrigerant C Cooling water H Hot water

Claims (6)

A plurality of adsorption / desorption devices through which a heat transfer tube having a solid adsorbent disposed on the surface is inserted, an evaporator that can be individually communicated with the plurality of adsorption / desorption devices, and a plurality of the adsorption / desorption devices individually A condenser that is capable of communicating with the heat exchanger tube, the adsorption / desorption device that functions as an adsorber by flowing cooling water through the heat transfer tube, and the desorption device that flows hot water through the heat transfer tube A fluid switching device for sequentially switching between the adsorbing and desorbing device,
A rotation center shaft that is rotated by a driving device at a predetermined angle;
A bearing body portion having a hollow sliding hole in which the rotation center shaft portion is rotatably arranged, and
A cooling water flow path for flowing cooling water and a hot water flow path for flowing warm water are formed in the rotation center shaft portion,
The bearing main body includes a cooling water inlet, a cooling water outlet, a hot water inlet, a hot water outlet, and an inlet of the heat transfer tube in the first adsorption / desorption device which is one of the plurality of adsorption / desorption devices. One side inlet connected, one side outlet connected to the outlet of the heat transfer tube in the first adsorption / desorption device, and the heat transfer tube in the second adsorption / desorption device which is the other of the plurality of adsorption / desorption devices The other side inlet connected to the inlet and the other side outlet connected to the outlet of the heat transfer tube in the second adsorption / desorption device are opened from the outer side to the hollow sliding hole to the inner peripheral surface of the hollow sliding hole. And
The cooling water flow path connects the cooling water inlet and the one side inlet and connects the one side outlet and the cooling water outlet to the heat transfer pipe in the first adsorption / desorption device. And supplying the cooling water from the hot water passage and connecting the hot water inlet and the other side inlet and connecting the other side outlet and the hot water outlet to each other in the second adsorption / desorption device. A first operating position for supplying hot water from a hot water supply source to the heat transfer tube;
The cooling water flow path connects the cooling water inlet and the other side inlet and connects the other side outlet and the cooling water outlet to supply the cooling water to the heat transfer tube in the second adsorption / desorption device. In the first adsorption / desorption device, cooling water is supplied from a source, and the warm water flow path is connected to the warm water inlet and the one side inlet, and the one side outlet and the warm water outlet are connected to each other. The fluid switching device, wherein the rotation center shaft portion is rotated to a second operation position where hot water is supplied from the hot water supply source to the heat transfer tube. 2. The fluid switching device according to claim 1, wherein the rotation center shaft portion is connected to the cooling water inlet by the cooling water flow path before rotating from the first operation position to the second operation position. The other side inlet is connected and the other side outlet and the one side inlet are connected, and the one side outlet and the cooling water outlet are connected. And the hot water outlet are connected, and the cooling water supplied from the cooling water supply source is supplied to the heat transfer tube in the second adsorption / desorption device, whereby the hot water remaining in the heat transfer tube is supplied to the first heat transfer tube. Rotate to the first recovery position to push out to the heat transfer tube in the adsorption / desorption device,
The rotation center shaft portion connects the cooling water inlet and the one-side inlet and connects the one-side inlet through the cooling water flow path before rotating from the second operation position to the first operation position. Connecting the outlet and the other side inlet, connecting the other side outlet and the cooling water outlet, and connecting the hot water inlet and the hot water outlet by the hot water flow path; By supplying the cooling water supplied from the water supply source to the heat transfer tube in the first adsorption / desorption device, the second recovery for pushing out the hot water remaining in the heat transfer tube to the heat transfer tube in the second adsorption / desorption device A fluid switching device, wherein the fluid switching device is configured to rotate to a position. 2. The fluid switching device according to claim 1, wherein the rotation center shaft portion is rotated by the hot water flow path and the hot water inlet before the rotation from the first operation position to the second operation position. The one side inlet and the one side outlet are connected to the other side inlet, and the other side outlet and the hot water outlet are connected to each other. By connecting the cooling water outlet to the hot water supplied from the hot water supply source to the heat transfer tube in the second adsorption / desorption device, the cooling water remaining in the heat transfer tube can be removed. Rotate to the first recovery position to push to the heat transfer tube in the desorber,
The turning center shaft portion connects the hot water inlet and the other side inlet and connects the other side outlet through the hot water flow path before turning from the second operating position to the first operating position. And the one-side inlet, and the one-side outlet and the hot water outlet are connected. On the other hand, the cooling water inlet and the cooling water outlet are connected by the cooling water flow path, and the hot water A second recovery position for pushing out the cooling water remaining in the heat transfer tube to the heat transfer tube in the second adsorption / desorption device by supplying warm water supplied from the supply source to the heat transfer tube in the first adsorption / desorption device. A fluid switching device, wherein the fluid switching device is configured to rotate. The fluid switching device according to any one of claims 1 to 3, wherein the cooling water inlet, the cooling water outlet, the hot water inlet, the hot water outlet, the one side inlet, and the one side. The outlet is formed at a different position in the axial direction of the hollow sliding hole,
The other side inlet and the other side outlet are formed at positions opposite to the one side inlet and the one side outlet in the circumferential direction of the hollow sliding hole,
The fluid switching device according to claim 1, wherein the cooling water flow path and the hot water flow path in the rotation center shaft portion are formed in a plurality of dispersed positions at positions in the axial direction and the circumferential direction. 5. The fluid switching device according to claim 1, wherein the one-side inlet and the one-side outlet and the other-side inlet and the other-side outlet are a set of two or more sets. Corresponding to the adsorption / desorption device, formed in a plurality of locations in the circumferential direction or axial direction of the hollow sliding hole,
When the rotation center shaft portion is rotated to the first operation position and to the second operation position, the cooling water supply and the hot water are supplied to the heat transfer tubes in the plurality of sets of adsorption / desorption devices. The fluid switching device is characterized in that the supply of the fluid is performed simultaneously. A plurality of adsorption / desorption devices through which a heat transfer tube having a solid adsorbent disposed on the surface is inserted, an evaporator that can be individually communicated with the plurality of adsorption / desorption devices, and a plurality of the adsorption / desorption devices individually A condenser that is capable of communicating with the heat exchanger tube, the adsorption / desorption device that functions as an adsorber by flowing cooling water through the heat transfer tube, and the desorption device that flows hot water through the heat transfer tube The fluid switching device for sequentially switching the adsorbing and desorbing device,
A rotation center shaft that is rotated by a driving device at a predetermined angle;
A bearing body portion having a hollow sliding hole in which the rotation center shaft portion is rotatably arranged, and
A cooling water channel for flowing cooling water, a warm water channel for flowing hot water, and a recovered water channel for flowing cooling water or hot water as recovered water are formed in the rotation center shaft portion,
The bearing body has a cooling water inlet, a cooling water outlet, a hot water inlet, a hot water outlet, a recovered water inlet, a recovered water outlet, and each inlet of the heat transfer tube in the plurality of adsorption / desorption devices, respectively. A plurality of supply inlets connected to each other and a plurality of supply outlets connected to the respective outlets of the heat transfer tubes in the plurality of adsorption / desorption devices open from the outer side to the hollow sliding hole to the inner peripheral surface of the hollow sliding hole. Formed,
The supply inlet and the supply outlet are formed side by side in the axial direction of the hollow sliding hole, and the hollow sliding as a pair of the supply inlet and the supply outlet for each of the adsorption / desorption devices. It is formed at multiple locations in the circumferential direction of the hole,
The rotation position of the rotation center shaft portion is formed in the same number as the number of the plurality of adsorption / desorption devices,
The cooling water flow path communicates from the cooling water inlet to the cooling water outlet via one or more of the supply inlet and the supply outlet, and functions as the adsorber among the plurality of adsorption / desorption devices. An adsorption operation for supplying cooling water from a cooling water supply source to the heat transfer tubes in the one or more first adsorption / desorption devices to be caused;
The hot water flow channel communicates from the hot water inlet to the hot water outlet via one or more of the supply inlet and the supply outlet, and functions as the desorber among the plurality of adsorption / desorption devices. A desorption operation for supplying hot water from a hot water supply source to the heat transfer tubes in one or a plurality of second adsorption / desorption devices;
Cooling water (or hot water) supplied from a recovered water supply source is communicated from the recovered water inlet to the recovered water outlet via the plurality of supply inlets and the supply outlets by the recovered water channel. By supplying to the heat transfer tube in the third adsorption / desorption device that functions as a recovery device among the plurality of adsorption / desorption devices, hot water (or cooling water) remaining in the heat transfer tube is supplied to any of the other third A fluid switching device, wherein the recovery operation of pushing out to the heat transfer tube in the adsorption / desorption device is performed simultaneously at each rotation position of the rotation center shaft portion.

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