JP2012202584A - Switching device for fluid, and adsorption refrigerator using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a switching device for a fluid, and an adsorption refrigerator using the switching device for the fluid, capable of performing circulation and interception of the fluid flowing in a pair of elastic tubes by one drive source and a turning shaft and having durability in repeating the circulation and interception.SOLUTION: The switching device 5 for the fluid includes the pair of elastic tubes 6 disposed in a mutually parallel state in a frame 51; a driving shaft 7 journaled to the frame 51 in a perpendicular state to the respective elastic tubes 6; and a switch 71 provided at the driving shaft 7. The switching device 5 for the fluid is configured to turn the driving shaft 7 sequentially by 90° to repeatedly form a closed state P1 of closing the pair of elastic tubes 6 by pressing the pair of elastic tubes 6 to opposite parts 514 of the frame 51 by a pair of rollers 73 of the switch 71, and an open state P2 of opening the pair of elastic tubes 6 by retreating the pair of rollers 73 of the switch 71 from the pair of elastic tubes 6.

Description

  The present invention relates to a fluid switching device capable of repeatedly closing and opening a pair of elastic tubes and an adsorption refrigerator using the same.

  For example, in an adsorption refrigeration machine, heat transfer tubes are inserted into two 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 refrigerator is operated by alternately switching an adsorption / desorption device that functions as an adsorber and an adsorption / desorption device that functions as a desorption device at predetermined time intervals. At this time, in the adsorption / desorption device that functions as an adsorber, cooling water is supplied to the heat transfer pipes that are piped in the adsorption / desorption device, and in the adsorption / desorption devices that function as the desorption device, the transfer pipes that are piped in the adsorption / desorption device. Hot water is flowing through the heat pipe.

In order to alternately flow the cooling water and the hot water to the heat transfer tubes of the respective adsorption / desorption devices, a large number of valves for switching pipes through which the cooling water and the hot water flow are used.
For example, in the operation method of the adsorption refrigeration system of Patent Document 1, it is disclosed that a plurality of adsorption towers are switched and operated as an adsorption / desorption process so that at least one of the adsorption towers is a process different from the other. In this adsorption refrigeration system, a large number of valves are used to switch the cooling water and the heat source side heat medium to the heat transfer tubes built in each adsorption tower.

  Further, for example, in the cooling system for a heating element disclosed in Patent Document 2, two inlets and two outlets to which two types of heat medium are supplied are formed in the valve housing, and are arranged rotatably in the housing. It is disclosed that two heat medium passages are formed in the valve body. According to this valve, each heat medium can be switched to one outlet and the other outlet and circulated by one valve.

Japanese Patent Application Laid-Open No. 64-58966 JP 2004-356432 A

However, in the adsorption refrigerator, as disclosed in Patent Document 1, when a large number of valves are used to switch between cooling water and hot water, the number of drive sources that individually open and close increases. End up.
Further, in the adsorption refrigerator, when the valve disclosed in Patent Document 2 is used, the cooling water and the hot water alternately pass through the packing provided between each inlet and outlet of the housing and the valve body. There is a risk of deterioration due to heat transfer, friction due to sliding, and the like.

  The present invention has been made in view of such conventional problems, and it is possible to flow and block a fluid flowing through a pair of elastic tubes by one driving source and a rotating shaft, and to repeat the flow and blocking. It is an object of the present invention to provide a durable fluid switching device and an adsorption refrigerator using the fluid switching device.

The present invention comprises a pair of elastic tubes disposed on a frame in a state parallel to each other,
A drive shaft pivotally supported on the frame in a state perpendicular to each elastic tube between the pair of elastic tubes and at an equal position from each elastic tube;
A switching device provided at a position facing the pair of elastic tubes on the drive shaft,
The switch includes an arm portion protruding from the drive shaft on both sides in the radial direction, and the arm facing the shaft portion in a direction parallel to the axial direction of the drive shaft at an equal position from the drive shaft. A pair of rollers pivotally supported on the part,
A closed state in which the pair of rollers of the switch presses the pair of elastic tubes against the opposed portions of the frame and closes the pair of elastic tubes by sequentially rotating the drive shaft by 90 °; In the fluid switching device, the pair of rollers of the switch is configured to repeatedly form an open state in which the pair of rollers retracts from the pair of elastic tubes and opens the pair of elastic tubes ( Claim 1).

The fluid switching device of the present invention includes a pair of elastic tubes, a drive shaft, and a switch, and the switch is configured to pivotally support a pair of rollers with respect to an arm portion provided on the drive shaft.
This fluid switching device can simultaneously block the flow of fluid supplied to a pair of elastic tubes by a switch. Specifically, when the drive shaft is at a predetermined position, the pair of rollers of the switch retracts from the pair of elastic tubes. At this time, an open state in which the switch opens the pair of elastic tubes is formed, and the fluid can be passed through the pair of elastic tubes, respectively.

When the drive shaft is rotated 90 ° from a predetermined position, the pair of rollers of the switch presses the pair of elastic tubes against the opposing portions of the frame. At this time, each roller rolls on the surface of each elastic tube, a closed state in which the switch closes the pair of elastic tubes is formed, and the flow of fluid in the pair of elastic tubes can be stopped.
In this way, by sequentially rotating the drive shaft every 90 °, the pair of elastic tubes can be repeatedly opened and closed, whereby the fluid supplied to the pair of elastic tubes can be circulated and blocked.
The drive shaft can repeat 90 ° rotation in the same direction, and can alternately rotate 90 ° rotation in one direction and the other direction.

In the present invention, the drive shaft can be rotated by one drive source in order to simultaneously open and close the pair of elastic tubes. Accordingly, the fluid flowing through the pair of elastic tubes can be circulated and blocked by one drive source and the rotation shaft.
Further, by using a pair of elastic tubes, a sealing material such as packing can be eliminated, and the problem of deterioration can be eliminated. Moreover, a pair of roller of a switch rolls and contacts the surface of a pair of elastic tube. Therefore, it is possible to ensure the durability of the pair of elastic tubes when the fluid circulation and blocking are repeated.
Furthermore, the fluid supplied to the pair of elastic tubes can be a fixed fluid, for example, cooling water supplied to one elastic tube and hot water supplied to the other elastic tube.

  Therefore, according to the fluid switching device of the present invention, it is possible to flow and block the fluid flowing through the pair of elastic tubes with one drive source and the rotating shaft, and durability when repeating this flow and blocking. Can be secured.

Sectional drawing which shows the state with which a switch is located in a line with the axial direction of a drive shaft about the switching apparatus for fluids concerning an Example. It is a figure which shows a pair of elastic tube and switch which comprise one set about the switching apparatus for fluid concerning an Example, and is AA arrow sectional drawing of FIG. It is a figure which shows a pair of elastic tube and switch which comprise the other group about the switching apparatus for fluid concerning an Example, and is the BB arrow sectional drawing of FIG. The block diagram which shows the adsorption | suction type refrigerator which uses the 2 sets of switching apparatuses for fluids concerning an Example, and operates it using a 1st adsorption / desorption device as an adsorber and a 2nd adsorption / desorption device as a desorption device. The block diagram which shows the adsorption | suction type refrigerator which uses the 2 sets of switching devices for fluids concerning an Example, and drives | operates by making a 1st adsorption / desorption device into a desorption device and a 2nd adsorption / desorption device as an adsorption device. Explanatory drawing which shows the state which formed the 1st driving | running state of the adsorption | suction type refrigerator by 2 sets of switching apparatuses for fluid concerning an Example. Explanatory drawing which shows the state which formed the 1st collection | recovery state of the adsorption | suction type refrigerator with 2 sets of switching apparatuses for fluid concerning an Example. Explanatory drawing which shows the state which formed the 2nd driving | running state of the adsorption | suction type refrigerator with 2 sets of switching apparatuses for fluid concerning an Example. Explanatory drawing which shows the state which formed the 2nd collection | recovery state of the adsorption-type refrigerator with two sets of switching apparatuses for fluid concerning an Example. Explanatory drawing which simplifies and shows FIG. 6 concerning an Example. Explanatory drawing which shows FIG. 7 simplified about an Example. FIG. 9 is an explanatory diagram showing, in a simplified manner, FIG. 8 according to the embodiment. FIG. 10 is an explanatory diagram showing, in a simplified manner, FIG. 9 according to the embodiment.

A preferred embodiment of the above-described fluid switching device of the present invention and the adsorption refrigerator using the fluid switching device will be described.
In the present invention, normal temperature water can be used as the cooling water, and water heated using exhaust heat from a gas engine, a boiler, or the like can be used as the warm water.

Further, the pair of elastic tubes and the switch are respectively arranged at two positions in the axial direction of the drive shaft, and the pair constituting the one pair is configured by sequentially rotating the drive shaft by 90 °. The elastic tube and the switch, and the pair of elastic tubes and the switch constituting the other set are configured to alternately and repeatedly form different states of the closed state and the open state. It is preferable that it is present (claim 2).
In this case, the fluid supplied to the pair of elastic tubes constituting one set and the pair of elastic tubes constituting the other set are rotated by the rotation of one drive shaft by one drive source. The fluid can be circulated and shut off alternately.

In addition, the pair of elastic tubes constituting the one set and the pair of elastic tubes constituting the other set are parallel to each other and disposed on the frame so as to face each other. The switch constituting the set and the switch constituting the other set are provided on the drive shaft with a phase shift of 90 °, and the drive shaft is different between the closed state and the open state. A pair of elastic tubes and a switch constituting the one set and a pair of elastic tubes and a switch constituting the other set are opened at a position rotated 45 ° from the position where the state is formed. It is preferable to be configured to be in a state (Claim 3).
In this case, two pairs of elastic tubes can be compactly arranged on the frame, and the fluid switching device can be formed compactly.
Further, when the use of the fluid switching device is stopped, the two pairs of elastic tubes can all be opened.

  Further, one end of one elastic tube of the pair of elastic tubes constituting the one set and one end of one elastic tube of the pair of elastic tubes constituting the other set are the first one. One end of the other elastic tube of the pair of elastic tubes that are connected to the connecting portion and constitute the one set, and one end of the other elastic tube of the pair of elastic tubes that constitute the other set Are connected to the second connection portion at one end, and the other end of one elastic tube of the pair of elastic tubes constituting the one set and the pair of elastic tubes constituting the other set The other end of the other elastic tube is connected to the other end first connection portion, and the other end of the other elastic tube of the pair of elastic tubes constituting the one set and the other set A pair of elastic When the other end of the elastic tube on one side of the tube is connected to the second connection portion on the other end and the drive shaft is at the original position or a position rotated 180 ° from the original position, A pair of elastic tubes and a switch constituting the pair are set in the open state, and a pair of elastic tubes and the switch constituting the other set are set in the closed state so that the one end first connection portion and the other The end first connection portion is communicated with, and the one end second connection portion and the other end second connection portion are communicated, and the drive shaft is at a position rotated 90 ° or 270 ° from the original position. Sometimes the pair of elastic tubes and the switch constituting the one set are in the closed state, and the pair of elastic tubes and the switch constituting the other set are in the open state, and the one end first connection Part and the other end second connection Preparative with communicating, it is preferable that are configured to communicating the said one end a second connecting portion and the other end first connecting portion (claim 4).

In this case, in the fluid switching device including two pairs of elastic tubes, the one end first connection portion and the other end first connection portion are communicated with each other, and the one end second connection portion and the other end second connection. The first fluid supplied to the first connecting portion at one end is passed to the first connecting portion at the other end, and the second fluid supplied to the second connecting portion at the other end is It can be passed through two connections. On the other hand, when the one end first connection portion and the other end second connection portion are communicated with each other, and the one end second connection portion and the other end first connection portion are communicated, the first end supplied to the one end first connection portion is provided. While letting a fluid pass to the other end 2nd connection part, the 2nd fluid supplied to one end 2nd connection part can be allowed to pass to the other end 1st connection part.
Thereby, a 1st fluid and a 2nd fluid can be made to flow alternately by switching to an other end 1st connection part and an other end 1st connection part alternately.

In addition, two pairs of elastic tubes can be simultaneously opened and closed by the operation of rotating one drive shaft by one drive source.
In addition, the two pairs of elastic tubes can be distinguished into a pair of elastic tubes that allow only cooling water to flow and a pair of elastic tubes that allow only hot water to flow. Thereby, it is possible to prevent heat transfer due to a temperature difference between the cooling water and the hot water from occurring in each elastic tube.

Further, by using two sets of the fluid switching devices, it is possible to switch between the cooling water and the hot water that are alternately supplied to the heat transfer tubes of the two adsorption / desorption devices in the adsorption refrigerator.
Specifically, in the adsorption refrigeration machine configured to use two sets of the above-described fluid switching devices and to flow cooling water to the adsorber and flow warm water to the desorber,
The adsorption refrigerator includes two adsorption / desorption devices formed by inserting a heat transfer tube having a solid adsorbent disposed on the surface, an evaporator capable of communicating individually with the two adsorption / desorption devices, and the two A condenser capable of communicating individually with the adsorption / desorption device; and the adsorption / desorption device that causes cooling water to flow through the heat transfer tube to function as the adsorber; and the desorption device through which warm water flows through the heat transfer tube The above-described adsorption / desorption device that functions as, is operated by alternately switching at predetermined time intervals, and is configured to cool the cold water in the evaporation pipe inserted into the evaporator,
In the first fluid switching device, one end connection set of the one end first connection portion and the one end second connection portion, and the other end of the other end first connection portion and the other end second connection portion. One of the connection groups is separately connected to the cooling water inlet pipe to which cooling water is supplied from the cooling water tank and the hot water inlet pipe to which hot water is supplied from the hot water tank. Are separately connected to the inlet of the heat transfer tube of the first adsorption / desorption device and the inlet of the heat transfer tube of the second adsorption / desorption device,
In the second fluid switching device, one end connection set of the one end first connection portion and the one end second connection portion, and the other end of the other end first connection portion and the other end second connection portion. Any one of the connection groups is separately connected to the outlet of the heat transfer tube of the first adsorption / desorption device and the outlet of the heat transfer tube of the second adsorption / desorption device, and the remaining group Are separately connected to a cooling water outlet pipe for returning the cooling water to the cooling water tank and a hot water outlet pipe for returning the hot water to the hot water tank,
When the first adsorbing / desorbing device and the second adsorbing / desorbing device function as the adsorbing device and the desorbing device using the two sets of fluid switching devices, a predetermined It can be configured to switch alternately at time intervals.

In this adsorption refrigeration machine, the first fluid switching device is disposed on the inlet side of the cooling water and hot water to the heat transfer tubes of the two adsorption / desorption devices, and the second fluid switching device is provided with two It arrange | positions at the exit side of the cooling water and hot water from each heat exchanger tube of an adsorption / desorption device. Then, by rotating each drive shaft in the two sets of fluid switching devices, an adsorption / desorption device for flowing cooling water to the heat transfer tubes and an adsorption / desorption device for flowing warm water to the heat transfer tubes are alternately arranged at predetermined time intervals. It is possible to continuously cool the cold water in the evaporation pipe that is switched and inserted into the evaporator. And as an adsorption-type refrigerator, the cold water to produce | generate can be supplied to a to-be-cooled object.
Further, by switching between the two drive sources and the drive shaft, it is possible to repeatedly switch between the adsorber and the desorber in the adsorption refrigerator. Thereby, energy saving of an adsorption type refrigerator can be achieved.

In the adsorption refrigeration machine, when forming the first operating state in which the first adsorption / desorption device functions as the adsorption device and the second adsorption / desorption device functions as the desorption device, the first fluid In the first fluid switching device, the drive shaft in the switching device for fluid and the drive shaft in the second fluid switching device are turned to an original position or a position rotated 180 ° from the original position. The pair of elastic tubes and the switch constituting the one set are set in the open state, and the pair of elastic tubes and the switch constituting the other set are set in the closed state, so that the second fluid switching is performed. In the apparatus, the pair of elastic tubes and the switch constituting the one set are set in the open state, the pair of elastic tubes and the switch constituting the other set are set in the closed state, and the cooling water is supplied. , From the cooling water inlet pipe, the one side elastic tube constituting the one set in the first fluid switching device is passed and supplied to the inlet of the heat transfer pipe of the first adsorption / desorption device, From the outlet of the heat transfer tube, the one side elastic tube constituting the one set in the second fluid switching device is passed through and led to the cooling water outlet pipe, and the hot water is supplied from the hot water inlet pipe, While passing the other elastic tube constituting the one set in the first fluid switching device and supplying it to the inlet of the heat transfer tube of the second adsorption / desorption device, from the outlet of the heat transfer tube, The other elastic tube constituting the one set in the second fluid switching device is passed through and led to the hot water outlet pipe, the first adsorption / desorption device is used as the desorption device, and the second adsorption / desorption device is used. Desorber adsorbs above When the second operating state is set to function as a container, the drive shaft in the first fluid switching device and the drive shaft in the second fluid switching device are 90 ° or 270 from the original position. In the first fluid switching device, the switch constituting the one set is set to the closed state, and the switch constituting the other set is set to the open state in the first fluid switching device. In the second fluid switching device, the switch constituting the one set is in the closed state, the switch constituting the other set is in the open state, and the cooling water is From the cooling water inlet pipe, the one side elastic tube constituting the other set in the first fluid switching device is passed through and supplied to the inlet of the heat transfer tube of the second adsorption / desorption device, and Heat pipe outlet or In the second fluid switching device, one side elastic tube constituting the other group is passed through and guided to the cooling water outlet pipe, and the hot water is supplied from the hot water inlet pipe to the first fluid. And passing through the other side elastic tube constituting the other set in the switching device for supply to the inlet of the heat transfer tube of the first adsorption / desorption device, and from the outlet of the heat transfer tube, the second fluid It is preferable that the other side elastic tube constituting the other set in the switching device for use is passed through and led to the hot water outlet pipe (claim 6).
In this case, the adsorption chiller can be operated by appropriately rotating the rotation shafts of the two sets of fluid switching devices.

  In the adsorption refrigerator, after the first operating state is formed and before the second operating state is formed, only the drive shaft in the first fluid switching device is rotated 90 ° first. The first recovery state is formed, and in the first fluid switching device, the switch constituting the one set is set to the closed state, and the switch constituting the other set is provided. In the second fluid switching device, the switch constituting the one set is maintained in the open state, and the switch constituting the other set is maintained in the closed state. Pipe connected from the first fluid switching device to the second fluid switching device via the heat transfer tube of the second adsorption / desorption device by the cooling water supplied to the cooling water inlet piping The hot water remaining inside is pushed back to the hot water outlet pipe, The hot water supplied to the hot water inlet pipe remains in the pipe connected from the first fluid switching device to the second fluid switching device via the heat transfer tube of the first adsorption / desorption device. Preferably, the cooling water is pushed back to the cooling water outlet pipe.

In this case, after the first operation state is formed, the first recovery state is formed, and the hot water remaining in the pipe connected to the heat transfer pipe of the second adsorption / desorption device is pushed out by the cooling water to thereby exit the hot water outlet. Returning to the piping, the cooling water remaining in the piping connected to the heat transfer tube of the first adsorption / desorption device is returned to the cooling water outlet piping by pushing it out with hot water. Thereby, the mixed flow of the warm water to the cooling water outlet pipe and the mixed flow of the cooling water to the hot water outlet pipe can be prevented as much as possible.
In addition, since the 1st collection | recovery state aims at collection | recovery of the cooling water and warm water which became unnecessary for each adsorption / desorption device, when these collection | recovery is complete | finished, it switches to a 2nd operation state rapidly. The timing for switching from the first recovery state to the second operation state is preferably when the cooling water that pushes out the hot water and the hot water that pushes out the cooling water reach the second fluid switching device.

  In the adsorption refrigerator, after the second operating state is formed and before the first operating state is formed, only the drive shaft in the second fluid switching device is rotated 90 ° first. The second recovery state is formed, and in the first fluid switching device, the switch constituting the one set is set to the open state, and the switch constituting the other set is provided. In the second fluid switching device, the switch constituting the one set is maintained in the closed state, and the switch constituting the other set is maintained in the open state. Pipe connected from the first fluid switching device to the second fluid switching device via the heat transfer tube of the first adsorption / desorption device by the cooling water supplied to the cooling water inlet piping The hot water remaining inside is pushed back to the hot water outlet pipe, The hot water supplied to the hot water inlet pipe remains in the pipe connected from the first fluid switching device to the second fluid switching device via the heat transfer tube of the second adsorption / desorption device. Preferably, the cooling water is pushed back to the cooling water outlet pipe.

In this case, after the second operation state is formed, the second recovery state is formed, and the hot water remaining in the pipe connected to the heat transfer pipe of the first adsorption / desorption device is pushed out by the cooling water to thereby exit the hot water outlet. Returning to the piping, the cooling water remaining in the piping connected to the heat transfer tube of the second adsorption / desorption device is returned to the cooling water outlet piping by extruding with hot water. Thereby, the mixed flow of the warm water to the cooling water outlet pipe and the mixed flow of the cooling water to the hot water outlet pipe can be prevented as much as possible.
In addition, since the 2nd collection | recovery state aims at collection | recovery of the cooling water and warm water which became unnecessary for each adsorption / desorption device, when these collection | recovery is complete | finished, it will switch to a 1st operation state rapidly. The timing for switching from the second recovery state to the first operation state is preferably when the cooling water that pushes out the hot water and the hot water that pushes out the cooling water reach the second fluid switching device.

Hereinafter, embodiments of a fluid switching device and an adsorption refrigerator using the fluid switching device according to the present invention will be described with reference to the drawings.
As shown in FIGS. 1 to 3, the fluid switching device 5 of the present example includes a pair of elastic tubes 6 disposed on the frame 51 in a state of being parallel to each other, and each elastic tube between the pair of elastic tubes 6. 6, a drive shaft 7 that is pivotally supported on the frame 51 in a state perpendicular to each elastic tube 6, and a switch 71 provided at a position facing the pair of elastic tubes 6 on the drive shaft 7. I have. The switch 71 has an arm portion 72 that protrudes from the drive shaft 7 on both sides in the radial direction, and the shaft portion 731 is directed to the same position from the drive shaft 7 in a direction parallel to the axial direction of the drive shaft 7. A pair of rollers 73 pivotally supported on the arm portion 72 is provided.
In the fluid switching device 5, the pair of rollers 73 of the switcher 71 presses the pair of elastic tubes 6 against the facing portions 514 of the frame 51 by sequentially rotating the drive shaft 7 by 90 °, and the pair of elastic tubes. 6 is closed, and a pair of rollers 73 of the switcher 71 are retreated from the pair of elastic tubes 6 and an open state P2 in which the pair of elastic tubes 6 are opened is repeatedly formed.

Below, it demonstrates in full detail with reference to FIGS. 1-13 about the switching apparatus 5 for fluids of this example, and the adsorption | suction type refrigerator 1 using the same.
In this example, the fluid switching device 5 may be indicated by 5A and 5B, the elastic tube 6 may be indicated by 6A and 6B, and the switch 71 may be indicated by 71A and 71B.
FIG. 1 is a cross-sectional view showing a state in which the switch 71 is arranged in the axial direction of the drive shaft 7 in the fluid switching device 5, and FIG. 2 is a pair of elastic tubes 6A and a switch 71A constituting one set. FIG. 3 is a cross-sectional view showing a pair of elastic tubes 6B and a switch 71B constituting the other set.

As shown in FIGS. 1 to 3, in the fluid switching device 5 of the present example, the pair of elastic tubes 6 and the switch 71 are respectively disposed at two locations in the axial direction of the drive shaft 7. The pair of elastic tubes 6A constituting one set and the pair of elastic tubes 6B constituting the other set are arranged on the frame 51 so as to be parallel to each other and facing each other.
The switch 71A constituting one set and the switch 71B constituting the other set are provided on the drive shaft 7 with a phase shifted by 90 ° in the circumferential direction of the drive shaft 7. The arm portion 72 constituting each switch 71 is formed by a pair of arm plates 721 that pivotally support the shaft portion 731 of the pair of rollers 73 from both sides in the axial direction.

  In the fluid switching device 5, the drive shaft 7 is sequentially rotated by 90 °, whereby a pair of elastic tubes 6 </ b> A and a switch 71 </ b> A constituting one set, and a pair of elastic tubes 6 </ b> B constituting the other set, and The switch 71B is configured to alternately and repeatedly form different states of the closed state P1 and the open state P2. A pair of elastic tubes 6A and a switcher 71A constituting one set at a position where the drive shaft 7 is rotated by 45 ° from a position where different states of the closed state P1 and the open state P2 are formed, and the other The pair of elastic tubes 6B and the switching device 71B that constitute this set are configured to be in the open state P2. The state in which the drive shaft 7 is rotated by 45 ° can be formed when the use of the fluid switching device 5 is stopped.

The frame 51 is positioned on both sides in the direction in which two pairs of elastic tubes 6A and 6B extend in a direction orthogonal to the pair of shaft support plates 511 and the pair of shaft support plates 511 located on both sides of the drive shaft 7 in the axial direction. A pair of holding plates 512, a pair of pivot plates 511 and a pair of holding plates 512, and a pair of opposing plates 513 provided in parallel to the elastic tubes 6 and facing the elastic tubes 6. ing. The shaft support plate 511 is provided with a bearing 52 for supporting the drive shaft 7.
When the closed state P1 of the pair of elastic tubes 6 is formed, the positional relationship between the pair of opposed plates 513 and the switch 71 is that the outermost peripheral position of the roller 73 in the switch 71 and the position of the facing portion 514 in the counter plate 513 are. A gap corresponding to twice the thickness of the elastic tube 6 is formed between the inner surface and the inner surface. And each elastic tube 6 is crushed by the switch 71 so that some inner surfaces of a longitudinal direction may be united, and forms the closed state P1.

As shown in FIG. 1, the drive source 70 that drives the drive shaft 7 can be a cylinder, a motor, or the like that is operated by electric power, air pressure, or the like. The drive shaft 7 can be driven by sequentially rotating the output shaft of the cylinder by 90 °. Further, the drive shaft 7 can be rotated 90 ° alternately in one direction and the other direction by reciprocation of the piston of the cylinder. As the cylinder, one that reciprocates the cylinder rod, one that rotates the cylinder rod, and the like can be used.
Each elastic tube 6 is made of rubber, resin, or the like that is elastically deformed (has flexibility). On the inner side surface of each elastic tube 6, a groove for facilitating elastic deformation for closing the passage can be formed. A pair of grooves can be formed along the axial direction of each elastic tube 6 at portions located at both ends (positions facing each other in the circumferential direction) when being crushed linearly by the roller 73.

Below, adsorption type refrigerator 1 is explained.
FIG. 4 is a configuration diagram showing the adsorption refrigeration machine 1 that operates with the first adsorption / desorption device 2A as the adsorber X1 and the second adsorption / desorption device 2B as the desorption device X2. FIG. 5 is a configuration diagram showing the adsorption refrigeration machine 1 that operates with the first adsorption / desorption device 2A as the desorption device X2 and the second adsorption / desorption device 2B as the adsorption device X1.
In each figure, the piping through which the cooling water C passes is indicated by a solid line, and the piping through which the hot water H passes is indicated by a broken line.

  As shown in each figure, the adsorption refrigerator 1 has two adsorption / desorption devices 2A and 2B inserted through a heat transfer tube 21 having a solid adsorbent 211 arranged on the surface, and two adsorption / desorption devices 2A and 2B. And an evaporator 31 capable of communicating individually and a condenser 32 capable of communicating individually with the two adsorption / desorption devices 2A and 2B. The refrigerant A can be circulated inside each of the adsorption / desorption devices 2A and 2B, the evaporator 31 and the condenser 32, and the inside of each of the adsorption / desorption devices 2A and 2B, the evaporator 31 and the condenser 32 is a refrigerant. It is in a vacuum state so that A easily evaporates. 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.

  The evaporator 31 is provided adjacent to one side of the two adsorption / desorption devices 2A and 2B. A damper 34 that can be opened and closed by a pressure difference is disposed in the communication path 33 formed between the evaporator 31 and each of the adsorption / desorption devices 2A and 2B. The condenser 32 is provided adjacent to the other side of the two adsorption / desorption devices 2A and 2B. A damper 34 that can be opened and closed by a pressure difference is disposed in the communication path 33 formed between the condenser 32 and each of the adsorption / desorption devices 2A and 2B. Each damper 34 is configured to close the communication path 33 by its own weight, and opens and closes with a slight pressure difference generated between the adsorption / desorption devices 2A and 2B, the evaporator 31 and the condenser 32 as a power source.

  The damper 34A disposed in the communication path 33 between each adsorption / desorption device 2A, 2B and the evaporator 31 is closed from the adsorption / desorption device 2A, 2B side to the evaporator 31 side by its own weight. The damper 34A is configured to open only when the pressure in each of the adsorption / desorption devices 2A and 2B is lower than the pressure in the evaporator 31. The damper 34B disposed in the communication path 33 between each adsorption / desorption device 2A, 2B and the condenser 32 is closed by its own weight from the condenser 32 side toward the adsorption / desorption devices 2A, 2B. The damper 34B is configured to open only when the pressure in each of the adsorption / desorption devices 2A and 2B becomes higher than the pressure in the condenser 32.

As shown in FIGS. 4 and 5, the heat transfer tube 21 in each of the adsorption / desorption devices 2 </ b> A and 2 </ b> B is connected to two sets of fluid switching devices 5 </ b> A and 5 </ b> B.
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 for supplying and cooling the 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 in the condenser 32, and the condenser tube 321 is connected to the cooling water tank 41. The cooling water C is supplied from the cooling water tank 41 to the condenser pipe 321 after passing through the first fluid switching device 5A, the heat transfer tubes 21 of the adsorption / desorption devices 2A and 2B, and the second fluid switching device 5B. The condenser tube 321 is circulated to the cooling water tank 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 the heat transfer tubes 21 of the adsorption / desorption devices 2A and 2B via the first fluid switching device 5A. It is supplied to the entrance. 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 second fluid switching device 5B.
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.).

As shown in FIGS. 4 and 5, the adsorption refrigeration machine 1 has an adsorption / desorption device 2 </ b> A (or 2 </ b> B) that causes cooling water C to flow through the heat transfer tube 21 to function as the adsorber X <b> 1 and hot water H to the heat transfer tube 21. The adsorption / desorption device 2B (or 2A) that functions as the desorption device X2 is operated by alternately switching at predetermined time intervals by rotating the drive shafts 7 in the two sets of fluid switching devices 5A and 5B. The chilled water W in the evaporation pipe 311 inserted through the evaporator 31 is cooled. Thereby, the adsorption refrigeration machine 1 continuously supplies the generated cold water W from the cold water tank 44 to the refrigeration equipment 45.
In this example, in order to prevent a mixed flow of the cooling water C and the hot water H during the process of repeatedly performing the adsorption / desorption process of adsorbing and desorbing the refrigerant vapor A on the solid adsorbent 211 at predetermined time intervals. The recovery process is performed.

The operation of the adsorption refrigerator 1 is performed as follows.
As shown in FIG. 4, 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. And the pressure in the 1st adsorption / desorption device 2A becomes lower than the pressure in the evaporator 31 and the pressure in the condenser 32 when the pressure in the 1st adsorption / desorption device 2A falls. Due to this pressure difference, the damper 34A in the communication path 33 between the first adsorption / desorption device 2A and the evaporator 31 opens, and the damper in the communication path 33 between the first adsorption / desorption device 2A and the condenser 32. 34B closes. Then, the refrigerant vapor A in the evaporator 31 flows into the first adsorption / desorption device 2A, the heat as the vaporization heat is taken from the surface of the evaporation pipe 311 in the evaporator 31, and the cold water W in the evaporation pipe 311 is removed. Can be cooled.

  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 34A in the communication path 33 between the second adsorption / desorption device 2B and the evaporator 31 is closed, and the damper in the communication path 33 between the second adsorption / desorption device 2B and the condenser 32. 34B opens. 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 adsorption / desorption device 2A functioning as the adsorber X1 approaches the saturation amount, as shown in FIG. By operating 5A and 5B, the hot water H is caused to flow through the heat transfer tube 21 in the first adsorption / desorption device 2A, and the cooling water C is caused to flow through the heat transfer tube 21 in the second adsorption / desorption, whereby the first adsorption / desorption device 2A Is switched to the desorber X2, and the second adsorber / desorber 2B is switched to the adsorber 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 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 generated in the evaporation pipe 311 is frozen through the cold water tank 44. The equipment 45 can be continuously supplied.

  The fluid switching device 5 of this example uses two sets as a set in the adsorption refrigeration machine 1, and the fluid flowing through the heat transfer tubes 21 of the adsorption / desorption devices 2 </ b> A and 2 </ b> B is alternately supplied to the cooling water C and the hot water H. By switching, each adsorption / desorption device 2A, 2B functions as the adsorption device X1 or the desorption device X2. The fluid switching device 5 is configured such that the fluid supplied to the pair of elastic tubes 6A constituting one set and the pair constituting the other set by the rotation operation of one drive shaft 7 by one drive source 70. The circulation and interruption with the fluid supplied to the elastic tube 6B are alternately repeated.

  As shown in FIGS. 4 and 5, the first fluid switching device 5A is disposed on the inlet side of the cooling water C and the hot water H to the heat transfer tubes 21 of the two adsorption / desorption devices 2A and 2B. The fluid switching device 5B is arranged on the outlet side of the cooling water C and the hot water H from the heat transfer tubes 21 of the two adsorption / desorption devices 2A and 2B. Then, the fluid supplied to the heat transfer tubes 21 of the adsorption / desorption devices 2A and 2B is switched between the cooling water C and the hot water H by the turning operation of the drive shaft 7 in the first fluid switching device 5A. The cooling water C and the hot water H drained from the heat transfer pipes 21 of the adsorption / desorption devices 2A and 2B to the cooling water tank 41 and the hot water tank 43 by the rotation operation of the drive shaft 7 in the fluid switching device 5B. return.

6 to 9, two sets of fluid switching devices 5A and 5B are connected to the first adsorption / desorption device 2A and the second adsorption / desorption device 2B to control the flow of the cooling water C and the hot water H. It is explanatory drawing which shows a state. 10-13 is explanatory drawing which simplifies and shows FIGS. 6-9.
In each figure, the piping through which the cooling water C passes is indicated by a solid line, and the piping through which the hot water H passes is indicated by a broken line. Moreover, one end of each elastic tube 6A, 6B is shown by D1, and the other end is shown by D2.

In the fluid switching device 5, the piping of each elastic tube 6 is performed as follows, and the cooling water C (first fluid) and hot water H (second fluid) supplied to the two inlets are supplied to the two outlets. Can be discharged alternately.
Specifically, as shown in FIG. 6, one end of one elastic tube 6A1 of a pair of elastic tubes 6A constituting one set and one side of a pair of elastic tubes 6B constituting the other set. One end of the elastic tube 6 </ b> B <b> 1 is connected to one end first connection 61 </ b> A disposed outside the frame 51. One end of the other elastic tube 6A2 of the pair of elastic tubes 6A constituting one set and one end of the other elastic tube 6B2 of the pair of elastic tubes 6B constituting the other set are a frame. 51 is connected to the second connection part 61B at one end arranged outside the line 51.
The other end of one elastic tube 6A1 of the pair of elastic tubes 6A constituting one set and the other end of the other elastic tube 6B2 of the pair of elastic tubes 6B constituting the other set The other end first connecting portion 62A disposed outside the frame 51 is connected. Also, the other end of the other elastic tube 6A2 of the pair of elastic tubes 6A constituting one set and the other end of the one side elastic tube 6B1 of the pair of elastic tubes 6B constituting the other set The other end second connection portion 62B disposed outside the frame 51 is connected.

As shown in FIGS. 6 and 9, when the drive shaft 7 is moved to the original position or the position rotated by 180 ° from the original position, the pair of elastic tubes 6A and the switch 71A constituting one set are opened. The pair of elastic tubes 6B and the switch 71B constituting the other set are in the closed state P1, and the one end first connecting portion 61A and the other end first connecting portion 62A are communicated with each other, The 2 connection part 61B and the other end 2nd connection part 62B are connected.
On the other hand, as shown in FIGS. 7 and 8, when the drive shaft 7 is turned 90 ° or 270 ° from the original position, the pair of elastic tubes 6A and the switch 71A constituting one set are closed. A pair of elastic tubes 6B and a switch 71B constituting the other set are in an open state P2, and one end first connection portion 61A and the other end second connection portion 62B communicate with each other, The 2 connection part 61B and the other end 1st connection part 62A are connected.

As shown in FIG. 6, in the first fluid switching device 5 </ b> A disposed on the inlet side of the heat transfer tube 21 of each of the adsorption / desorption devices 2 </ b> A and 2 </ b> B, one end first connection 61 </ b> A is connected to the cooling water C from the cooling water tank 41. Is connected to a cooling water inlet pipe 411, and one end second connecting portion 61 </ b> B is connected to a hot water inlet pipe 431 to which hot water H is supplied from the hot water tank 43. The other end first connection portion 62A is connected to the inlet 21A of the heat transfer tube 21 of the first adsorption / desorption device 2A, and the other end second connection portion 62B is the heat transfer tube of the second adsorption / desorption device 2B. 21 is connected to the inlet 21B.
In the second fluid switching device 5B arranged on the outlet side of the heat transfer tube 21 of each of the adsorption / desorption devices 2A, 2B, the other end first connecting portion 62A is the outlet of the heat transfer tube 21 of the first adsorption / desorption device 2A. 22A, and the other end second connection portion 62B is connected to the outlet 22B of the heat transfer tube 21 of the second adsorption / desorption device 2B. In addition, one end first connecting portion 61A is connected to a cooling water outlet pipe 412 for returning the cooling water C to the cooling water tank 41, and one end second connecting portion 61B returns the hot water H to the hot water tank 43. To the hot water outlet pipe 432.

  The fluid switching devices 5A and 5B can be attached with the one end side and the other end side in the axial direction of each elastic tube 6 reversed. That is, in the first fluid switching device 5A, the other end first connecting portion 62A is connected to the cooling water inlet pipe 411, the other end second connecting portion 62B is connected to the hot water inlet pipe 431, and one end The first connecting portion 61A is connected to the inlet 21A of the heat transfer tube 21 of the first adsorption / desorption device 2A, and the one end second connection portion 61B is connected to the inlet 22A of the heat transfer tube 21 of the second adsorption / desorption device 2B. You can also. In the second fluid switching device 5B, the one end first connecting portion 61A is connected to the outlet 22A of the heat transfer tube 21 of the first adsorption / desorption device 2A, and the one end second connecting portion 61B is connected to the second suction port. Connect to the outlet 22B of the heat transfer tube 21 of the desorber 2B, connect the other end first connecting portion 62A to the cooling water outlet piping 412 and connect the other end second connecting portion 62B to the hot water outlet piping 432. You can also.

The adsorption refrigeration machine 1 of this example is not limited to the two operation states 501 and 503 for switching the two adsorption / desorption devices 2A and 2B to the adsorption device X1 and the desorption device X2, and the cooling water Two recovery states 502 and 504 are formed so that the cooling water C and the hot water H are not mixed and recovered in the tank 41 and the hot water tank 43.
As shown in FIGS. 6 and 10, in the first operation state 501 of the adsorption refrigeration machine 1, the first adsorption / desorption device 2 </ b> A functions as the adsorption device X <b> 1 and the second adsorption / desorption device 2 </ b> B functions as the desorption device X <b> 2. . When the first operating state 501 is formed, the drive shaft 7 in the first fluid switching device 5A and the drive shaft 7 in the second fluid switching device 5B are brought into their original positions.
In this example, the drive shaft 7 is alternately and repeatedly rotated between the original position and a position rotated 90 ° in one direction from the original position.

  In the first fluid switching device 5A, the pair of elastic tubes 6A and the switching device 71A constituting one set are in the open state P2, and the pair of elastic tubes 6B and the switching device constituting the other set. 71B enters the closed state P1. In the second fluid switching device 5B, the pair of elastic tubes 6A and the switching device 71A constituting one set are in the open state P2, and the pair of elastic tubes 6B and the switching device constituting the other set. 71B enters the closed state P1.

Due to the formation of these states, the cooling water C passes from the cooling water tank 41 via the cooling water inlet pipe 411 and passes through the one-side elastic tube 6A1 constituting one set in the first fluid switching device 5A. , And supplied to the inlet 21A of the heat transfer tube 21 of the first adsorption / desorption device 2A. Then, the cooling water C passes from the outlet 22A of the heat transfer tube 21 through the one-side elastic tube 6A1 constituting one set in the second fluid switching device 5B, and is cooled through the cooling water outlet pipe 412. It is collected in the water tank 41.
Further, the hot water H passes from the hot water tank 43 via the hot water inlet pipe 431, passes through the other elastic tube 6A2 constituting one set in the first fluid switching device 5A, and the second adsorption / desorption device 2B. To the inlet 21B of the heat transfer tube 21. The hot water H passes from the outlet 22B of the heat transfer tube 21 through the other elastic tube 6A2 constituting one set in the second fluid switching device 5B, and passes through the hot water outlet pipe 432 to the hot water tank 43. To be recovered.

Next, in the adsorption refrigerator 1, the first recovery state 502 is formed after the first operation state 501 is formed and before the second operation state 503 is formed. In the first recovery state 502, only the drive shaft 7 in the first fluid switching device 5A is first rotated by 90 °.
As shown in FIGS. 7 and 11, in the first fluid switching device 5A, the switch 71A constituting one set is in the closed state P1, and the switch 71B constituting the other set is opened. It will be in state P2. Further, in the second fluid switching device 5B, the switch 71A configuring one set is maintained in the open state P2, and the switch 71B configuring the other set is maintained in the closed state P1.

By forming these states, the cooling water C supplied to the cooling water inlet pipe 411 is used for the second fluid via the heat transfer pipe 21 of the second adsorption / desorption device 2B from the first fluid switching device 5A. The hot water H remaining in the pipe connected to the switching device 5B is pushed back to the hot water outlet pipe 432. Also, the pipe connected from the first fluid switching device 5A to the second fluid switching device 5B via the heat transfer tube 21 of the first adsorption / desorption device 2A by the hot water H supplied to the hot water inlet piping 432 The cooling water C remaining inside is pushed back to the cooling water outlet pipe 412.
In each figure, the cooling water C (solid line) pushes out the hot water H (broken line) and the hot water H pushes out the cooling water C.

  In this way, by forming the first recovery state 502, the cooling water C that is no longer necessary for the first adsorption / desorption device 2A is recovered in the cooling water tank 41 by the hot water H, and is supplied to the second adsorption / desorption device 2B. Unnecessary hot water H can be recovered in the hot water tank 43 by the cooling water C. And the mixed flow of the warm water H to the cooling water tank 41 and the mixed flow of the cooling water C to the warm water tank 43 can be prevented as much as possible.

Next, in the adsorption refrigeration machine 1, when the cooling water C that pushes out the hot water H and the hot water H that pushes out the cooling water C reach the second fluid switching device 5B, Switch to the two operation state 503.
As shown in FIGS. 8 and 12, in the second operation state 503 of the adsorption refrigeration machine 1, 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. . When the second operation state 503 is formed, the drive shaft 7 in the second fluid switching device 5B is rotated by 90 °. Then, the drive shaft 7 in the first fluid switching device 5A and the drive shaft 7 in the second fluid switching device 5B are set to a position rotated 90 ° from the original position.
In the first fluid switching device 5A, the switch 71A constituting one set is maintained in the closed state P1, and the switch 71B constituting the other set is maintained in the open state P2. In the second fluid switching device 5B, the switching device 71A configuring one set is in the closed state P1, and the switching device 71B configuring the other set is in the open state P2.

Due to the formation of these states, the cooling water C passes from the cooling water tank 41 via the cooling water inlet pipe 411 and passes through the one-side elastic tube 6B1 constituting the other set in the first fluid switching device 5A. , And supplied to the inlet 21B of the heat transfer tube 21 of the second adsorption / desorption device 2B. Then, the cooling water C passes from the outlet 22B of the heat transfer tube 21 through the one side elastic tube 6B1 constituting the other set in the second fluid switching device 5B, and is cooled via the cooling water outlet pipe 412. It is collected in the water tank 41.
Further, the hot water H passes from the hot water tank 43 via the hot water inlet pipe 431 and passes through the other elastic tube 6B2 constituting the other set in the first fluid switching device 5A, and the first adsorption / desorption device 2A. To the inlet of the heat transfer tube 21. Then, the hot water H passes from the outlet of the heat transfer tube 21 through the other elastic tube 6B2 constituting the other set in the second fluid switching device 5B, and enters the hot water tank 43 via the hot water outlet pipe 432. Collected.

Next, in the adsorption refrigerator 1, the second recovery state 504 is formed after the second operation state 503 is formed and before the first operation state 501 is formed. In the second recovery state 504, only the drive shaft 7 in the first fluid switching device 5A is first rotated by 90 °.
As shown in FIGS. 9 and 13, in the first fluid switching device 5A, the switch 71A constituting one set is in the open state P2, and the switch 71B constituting the other set is closed. It will be in state P1. Further, in the second fluid switching device 5B, the switch 71A constituting one set is maintained in the closed state P1, and the switch 71B constituting the other set is maintained in the open state P2.

By forming these states, the cooling water C supplied to the cooling water inlet pipe 411 is used for the second fluid via the heat transfer pipe 21 of the first adsorption / desorption device 2A from the first fluid switching device 5A. The hot water H remaining in the pipe connected to the switching device 5B is pushed back to the hot water outlet pipe 432. Also, the pipe connected from the first fluid switching device 5A to the second fluid switching device 5B via the heat transfer pipe 21 of the second adsorption / desorption device 2B by the hot water H supplied to the hot water inlet piping 432 The cooling water C remaining inside is pushed back to the cooling water outlet pipe 412.
In each figure, the cooling water C (solid line) pushes out the hot water H (broken line) and the hot water H pushes out the cooling water C.

  In this way, by forming the second recovery state 504, the cooling water C that is no longer necessary for the second adsorption / desorption device 2B is recovered in the cooling water tank 41 by the hot water H, and is supplied to the first adsorption / desorption device 2A. Unnecessary hot water H can be recovered in the hot water tank 43 by the cooling water C. And the mixed flow of the warm water H to the cooling water tank 41 and the mixed flow of the cooling water C to the warm water tank 43 can be prevented as much as possible.

After that, in the adsorption refrigeration machine 1, when the cooling water C that pushes out the hot water H and the hot water H that pushes out the cooling water C reach the second fluid switching device 5 </ b> B, Switch to 1 driving state 501.
Thus, thereafter, similarly to the above, the first operation state 501, the first recovery state 502, the second operation state 503, and the second recovery state 504 are repeatedly formed, and the cold water W in the evaporation pipe 311 of the evaporator 31 is formed. Is continuously cooled.

  The time for forming the first operation state 501 and the second operation state 503 is longer than the time for forming the first recovery state 502 and the second recovery state 504. The time for forming the first operating state 501 and the second operating state 503 is that the refrigerant vapor A adsorbed on the solid adsorbent 211 is close to saturation after the adsorption of the refrigerant vapor A on the solid adsorbent 211 is started. It can be set as the time until (for example, several minutes). On the other hand, the time for forming the first recovery state 502 and the second recovery state 504 can be set as a time (for example, several seconds) for draining unnecessary cooling water C and hot water H remaining in the pipe.

Each fluid switching device 5 of the present example supplies fluid (cooling water C or hot water H) supplied to one pair of elastic tubes 6A by the operation of rotating one drive shaft 7 by one drive source 70. While circulating, the distribution | circulation of the fluid (warm water H or cooling water C) supplied to the other pair of elastic tubes 6B can be interrupted.
The fluid can be circulated and blocked by a very simple structure in which the switch 71 having the pair of rollers 73 elastically deforms the pair of elastic tubes 6. Further, by sequentially rotating the drive shaft 7 by 90 degrees in one direction or both directions by the drive source 70, the pipe through which the cooling water C and the hot water H flow can be easily and repeatedly switched with small power.
Further, in the adsorption refrigeration machine 1, by using the two sets of fluid switching devices 5A and 5B, the switching between the adsorber X1 and the desorber X2 can be repeatedly performed with small power, thereby saving energy. Can do.

Further, in the two pairs of elastic tubes 6A and 6B in each of the fluid switching devices 5A and 5B, a distinction is made between a pair of elastic tubes 6 through which only the cooling water C flows and a pair of elastic tubes 6 through which only the hot water H flows. can do. Thereby, it is possible to prevent heat transfer due to a temperature difference between the cooling water C and the hot water H from occurring in each elastic tube 6.
Moreover, by using the elastic tube 6, sealing materials, such as packing, can be abolished and the problem of the deterioration can be eliminated. In addition, the pair of rollers 73 of the switcher 71 is in rolling contact with the surfaces of the pair of elastic tubes 6. Therefore, it is possible to ensure the durability of the pair of elastic tubes 6 when the cooling water C and the hot water H are repeatedly circulated and blocked.

  Therefore, if the two sets of fluid switching devices 5A and 5B of this example are applied to the adsorption refrigeration machine 1, switching between the cooling water C and the hot water H supplied to the two adsorption / desorption devices 2A and 2B is inexpensive and possible. This can be performed with power saving, and the durability of the fluid switching devices 5A and 5B can be ensured.

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 5A, 5B Fluid switching device 501 1st operation state 502 1st collection state 503 2nd Operation state 504 Second collection state 51 Frame 514 Opposing portion 6A, 6B Elastic tube 61A One end first connection portion 61B One end second connection portion 62A Other end first connection portion 62B Other end second connection portion 7 Drive shaft 70 Drive source 71A , 71B switching unit 72 arm unit 73 roller A refrigerant C cooling water H warm water W cold water X1 adsorber X2 desorber

Claims (8)

A pair of elastic tubes disposed on the frame in parallel with each other;
A drive shaft pivotally supported on the frame in a state perpendicular to each elastic tube between the pair of elastic tubes and at an equal position from each elastic tube;
A switching device provided at a position facing the pair of elastic tubes on the drive shaft,
The switch includes an arm portion protruding from the drive shaft on both sides in the radial direction, and the arm facing the shaft portion in a direction parallel to the axial direction of the drive shaft at an equal position from the drive shaft. A pair of rollers pivotally supported on the part,
A closed state in which the pair of rollers of the switch presses the pair of elastic tubes against the opposed portions of the frame and closes the pair of elastic tubes by sequentially rotating the drive shaft by 90 °; The fluid switching device, wherein the pair of rollers of the switch is configured to repeatedly form an open state in which the pair of rollers retracts from the pair of elastic tubes and opens the pair of elastic tubes. 2. The fluid switching device according to claim 1, wherein the pair of elastic tubes and the switch are respectively disposed at two locations in the axial direction of the drive shaft,
By sequentially rotating the drive shaft by 90 °, the pair of elastic tubes and the switch constituting one set and the pair of elastic tubes and the switch constituting the other set are closed. A fluid switching device, characterized in that a state different from a state and an open state are alternately and repeatedly formed. 3. The fluid switching device according to claim 2, wherein the pair of elastic tubes constituting the one set and the pair of elastic tubes constituting the other set are parallel to each other and face each other. Arranged in
The switch constituting the one set and the switch constituting the other set are provided on the drive shaft with a phase shift of 90 °,
A pair of elastic tubes and a switch constituting the one set, and the other at a position where the drive shaft is rotated 45 ° from a position at which the closed state and the open state are different from each other. A fluid switching device, characterized in that a pair of elastic tubes and a switch constituting the pair are configured to be in the open state. The fluid switching device according to claim 2 or 3, wherein one end of one elastic tube of the pair of elastic tubes constituting the one set and one of the pair of elastic tubes constituting the other set. One end of the one side elastic tube is connected to the first connection portion at one end,
One end of the other side elastic tube of the pair of elastic tubes constituting the one set and one end of the other side elastic tube of the pair of elastic tubes constituting the other set are connected at one end to the second connecting portion. Connected to
The other end of one elastic tube of the pair of elastic tubes constituting the one set and the other end of the other elastic tube of the pair of elastic tubes constituting the other set are the other end. 1 connected to the connection,
The other end of the other elastic tube of the pair of elastic tubes constituting the one set and the other end of the one elastic tube of the pair of elastic tubes constituting the other set are the other ends. Connected to two connections,
When the drive shaft is at the original position or a position rotated by 180 ° from the original position, the pair of elastic tubes and the switch constituting the one set are set in the open state and the other set is configured. A pair of elastic tubes and a switch that are in the closed state, the first end first connection portion and the other end first connection portion communicate with each other, and the one end second connection portion and the other end second connection portion; Communicate
When the drive shaft is at a position rotated by 90 ° or 270 ° from the original position, the pair of elastic tubes and the switch constituting the one set are closed, and the other set is configured. A pair of elastic tubes and a switch to be in the open state, the first end first connection portion and the other end second connection portion are communicated, and the one end second connection portion and the other end first connection portion; A fluid switching device, wherein the fluid switching device is configured to communicate with each other. In the adsorption refrigeration machine configured to use two sets of the fluid switching device according to claim 4 and to flow the cooling water to the adsorber and the warm water to the desorber,
The adsorption refrigerator includes two adsorption / desorption devices formed by inserting a heat transfer tube having a solid adsorbent disposed on the surface, an evaporator capable of communicating individually with the two adsorption / desorption devices, and the two A condenser capable of communicating individually with the adsorption / desorption device; and the adsorption / desorption device that causes cooling water to flow through the heat transfer tube to function as the adsorber; and the desorption device through which warm water flows through the heat transfer tube The above-described adsorption / desorption device that functions as, is operated by alternately switching at predetermined time intervals, and is configured to cool the cold water in the evaporation pipe inserted into the evaporator,
In the first fluid switching device, one end connection set of the one end first connection portion and the one end second connection portion, and the other end of the other end first connection portion and the other end second connection portion. One of the connection groups is separately connected to the cooling water inlet pipe to which cooling water is supplied from the cooling water tank and the hot water inlet pipe to which hot water is supplied from the hot water tank. Are separately connected to the inlet of the heat transfer tube of the first adsorption / desorption device and the inlet of the heat transfer tube of the second adsorption / desorption device,
In the second fluid switching device, one end connection set of the one end first connection portion and the one end second connection portion, and the other end of the other end first connection portion and the other end second connection portion. Any one of the connection groups is separately connected to the outlet of the heat transfer tube of the first adsorption / desorption device and the outlet of the heat transfer tube of the second adsorption / desorption device, and the remaining group Are separately connected to a cooling water outlet pipe for returning the cooling water to the cooling water tank and a hot water outlet pipe for returning the hot water to the hot water tank,
When the first adsorbing / desorbing device and the second adsorbing / desorbing device function as the adsorbing device and the desorbing device using the two sets of fluid switching devices, a predetermined An adsorption refrigerator that is configured to be switched alternately at time intervals. 6. The adsorption refrigerator according to claim 5, wherein the first adsorption / desorption device is the adsorption device, and the first operation state in which the second adsorption / desorption device functions as the desorption device is formed. The drive shaft in the first fluid switching device and the drive shaft in the second fluid switching device are in the original position or a position rotated 180 ° from the original position,
In the first fluid switching device, the pair of elastic tubes and the switch constituting the one set are opened, and the pair of elastic tubes and the switch constituting the other set are closed. In the second fluid switching device, the pair of elastic tubes and the switch constituting the one set are brought into the open state, and the pair of elastic tubes and the switch constituting the other set In the closed state,
The cooling water is allowed to pass from the cooling water inlet pipe to the one side elastic tube constituting the one set in the first fluid switching device, and the inlet of the heat transfer tube of the first adsorption / desorption device And passing from the outlet of the heat transfer tube to the cooling water outlet pipe through the one side elastic tube constituting the one set in the second fluid switching device,
The warm water is supplied from the warm water inlet pipe to the inlet of the heat transfer tube of the second adsorption / desorption device through the other elastic tube constituting the one set in the first fluid switching device. And, from the outlet of the heat transfer tube, the other elastic tube constituting the one set in the second fluid switching device is passed through to the hot water outlet pipe,
When forming the second operating state in which the first adsorption / desorption device is the desorption device and the second adsorption / desorption device functions as the adsorber, the drive shaft in the first fluid switching device; The drive shaft in the second fluid switching device is set to a position rotated 90 ° or 270 ° from the original position,
In the first fluid switching device, the switch constituting the one set is set to the closed state, and the switch constituting the other set is set to the open state so that the second fluid switch is provided. In the apparatus, the switch constituting the one set is in the closed state, the switch constituting the other set is in the open state,
The cooling water is allowed to pass from the cooling water inlet pipe through the one side elastic tube constituting the other set in the first fluid switching device, and the inlet of the heat transfer tube of the second adsorption / desorption device And passing from the outlet of the heat transfer tube to the cooling water outlet pipe through the one side elastic tube constituting the other set in the second fluid switching device,
The hot water is supplied from the hot water inlet pipe to the inlet of the heat transfer tube of the first adsorption / desorption device through the other elastic tube constituting the other set in the first fluid switching device. And the other side elastic tube constituting the other set in the second fluid switching device is passed from the outlet of the heat transfer tube and led to the hot water outlet pipe. Adsorption refrigerator. 7. The adsorption refrigerator according to claim 6, wherein after the first operating state is formed and before the second operating state is formed, only the drive shaft in the first fluid switching device is first moved. Rotate 90 ° to form the first recovery state,
In the first fluid switching device, the switch constituting the one set is set to the closed state, and the switch constituting the other set is set to the open state so that the second fluid switch is provided. In the apparatus, while maintaining the switch constituting the one set in the open state, maintaining the switch constituting the other set in the closed state,
In piping connected to the second fluid switching device from the first fluid switching device via the heat transfer tube of the second adsorption / desorption device by the cooling water supplied to the cooling water inlet piping. Push the remaining hot water back to the hot water outlet pipe,
The hot water supplied to the hot water inlet pipe remains in the pipe connected from the first fluid switching device to the second fluid switching device via the heat transfer tube of the first adsorption / desorption device. An adsorption refrigeration machine, wherein the cooling water is pushed back to the cooling water outlet pipe. In the adsorption refrigerator according to claim 6 or 7, after forming the second operation state and before forming the first operation state, only the drive shaft in the second fluid switching device is used. First turn 90 degrees to form the second recovery state,
In the first fluid switching device, the switch configuring the one set is set to the open state, and the switch configuring the other set is set to the closed state, so that the second fluid switching is performed. In the device, while maintaining the switch constituting the one set in the closed state, maintaining the switch constituting the other set in the open state,
In piping connected to the second fluid switching device from the first fluid switching device via the heat transfer tube of the first adsorption / desorption device by the cooling water supplied to the cooling water inlet piping. Push the remaining hot water back to the hot water outlet pipe,
The hot water supplied to the hot water inlet pipe remains in the pipe connected from the first fluid switching device to the second fluid switching device via the heat transfer tube of the second adsorption / desorption device. An adsorption refrigeration machine, wherein the cooling water is pushed back to the cooling water outlet pipe.

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