WO1998021530A1 - Procede d'alimentation en liquide pour systemes de refroidissement thermoelectriques - Google Patents
Procede d'alimentation en liquide pour systemes de refroidissement thermoelectriques Download PDFInfo
- Publication number
- WO1998021530A1 WO1998021530A1 PCT/JP1997/004061 JP9704061W WO9821530A1 WO 1998021530 A1 WO1998021530 A1 WO 1998021530A1 JP 9704061 W JP9704061 W JP 9704061W WO 9821530 A1 WO9821530 A1 WO 9821530A1
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- liquid
- heat
- self
- circulation path
- way valve
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B21/00—Machines, plants or systems, using electric or magnetic effects
- F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/10—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects
- H10N10/13—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects characterised by the heat-exchanging means at the junction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
Definitions
- the present invention relates to a thermoelectric cooling system using a Peltier element, and more particularly, to a liquid filling method in a thermoelectric cooling system employed in a thermoelectric modular electric refrigerator or the like.
- a technology using a Peltu element in a refrigeration system is disclosed in Japanese Patent Application Publication No. 6-504463.
- This technology uses a heat exchanger in which a cooling water path for forcibly circulating cooling water is thermally coupled to each of the heat dissipation surface and the cooling surface of the Peltier element, and a cooling water path that is thermally coupled to the cooling surface of the Peltier element.
- the target object is cooled by the cooling of the heat exchanger, or the target object is warmed by heat radiation in a heat exchanger interposed in a cooling water passage thermally coupled to the heat radiation surface of the Peltier element.
- the present invention has been made in view of the above-mentioned problems of the prior art, and the mixing of air bubbles is not required even if the mechanical strength of the cooling water path does not exceed the mechanical strength required for normal operation of the refrigerator. It is an object of the present invention to provide a liquid filling method in a thermoelectric cooling system which can fill the cooling water with a small amount. Disclosure of the invention
- a liquid filling method in a thermoelectric cooling system of the present invention fills a liquid into a circulation path by sucking up a cooling liquid by a self-priming pump, flowing down the cooling liquid, or pumping the cooling liquid. It is characterized by
- the cooling water can be filled with less air bubbles even if the mechanical strength of the circulation path does not exceed the mechanical strength required for normal operation of the refrigerator.
- it has a first heat exchange part thermally coupled to the heat radiation surface of the thermoelectric module and a second heat exchange part thermally coupled to the cooling surface of the thermoelectric module described above. ⁇ a heat radiating system in which a first circulation path is formed by the heat exchanger and the first heat exchange section and a liquid is filled therein, a second circulation pump, a cooling heat exchanger, and the second heat pump.
- the heat circulation section may include any one of the first and second circulation paths.
- the heat circulation section When filling the liquid, connect the liquid suction port between the heat exchanger and the first or second heat exchange section to the liquid tank, and connect a self-priming pump in series with the suction or discharge port of the circulation pump.
- a self-priming pump Operating a self-priming pump to draw liquid from the liquid tank through the circulation path. After the liquid reaches the discharge port of the self-priming pump, the operation of the self-priming pump is stopped, the liquid suction port is closed, and then the self-priming pump is removed. Close the connection port between the suction pump and the circulation path. It was to so.
- thermoelectric module has a first heat exchange part thermally coupled to the heat radiation surface of the thermoelectric module and a second heat exchange part thermally coupled to the cooling surface of the thermoelectric module, and the first circulation pump and the heat exchange heat radiation
- first and second three-way valves connected in series are interposed in the above-mentioned circulation path, and the communication between the first three-way valve and the second three-way valve is closed so that the first three-way valve is closed.
- the liquid flows through the circulation path and the second three-way valve, and then the first and second three-way valves are switched to the first and second three-way valves.
- the liquid is allowed to flow from the first three-way valve to the second three-way valve in a closed state in which liquid does not flow into and out of the circulation path from the second three-way valve to the first three-way valve and the second three-way valve.
- the connection pipe is filled with liquid, and then the first and second three-way valves are switched to form the above-mentioned circulation circuit via the first and second three-way valves, thereby completing the filling. .
- the circulation path can be filled with liquid by pumping, sucking, or flowing down by a three-step switching operation of the first three-way valve and the second three-way valve.
- the self-priming pump is used to suck up the pretreatment liquid for improving the condition of the inner surface of the circulation path, and then the target liquid is sucked up. It is good to fill.
- the inner surface of the pipe of the circulation path is smoothed without unevenness, and when filling of the target liquid is started, the smoothness is eliminated without unevenness.
- the liquid can be filled in a state in which the adhesion of air bubbles is very small through the pipe line.
- an acrylic resin paint containing silica can be used as a pretreatment liquid, or a surfactant can be used.
- FIG. 1 is a longitudinal sectional view of a thermoelectric module type electric refrigerator to which a liquid filling method according to a first embodiment of the present invention is applied.
- FIG. 2 is a perspective view of the electric refrigerator of FIG.
- FIG. 3 is a rear view of the electric refrigerator of FIG.
- FIG. 4 is a horizontal sectional view of the upper part of the main body of the electric refrigerator in FIG.
- FIG. 5 is a perspective view of a heat-dissipating heat exchanger and a circulation pump provided in the electric refrigerator of FIG.
- FIG. 6 is an explanatory diagram of a heat radiation cycle and a heat absorption cycle of the electric refrigerator of FIG.
- FIG. 7 is a perspective view of components of the heat radiation cycle.
- FIG. 8 is a perspective view of components of the heat absorption cycle.
- FIG. 9 is a side view showing an attached state of the air reservoir attached to the circulation pump.
- FIG. 10 is a longitudinal sectional view of an ice making part of the electric refrigerator of FIG.
- FIG. 11 is a perspective view when cooling water is injected into the components shown in FIG.
- FIG. 12 is a perspective view when cooling water is injected into the constituent members of FIG.
- FIG. 13 is a perspective view when cooling water is injected into a component of a heat radiation cycle to which the second embodiment of the liquid filling method in the thermoelectric cooling system of the present invention is applied.
- FIG. 14A is a schematic piping diagram showing a state in which the two three-way valves shown in FIG. 13 are operated to inject cooling water into a heat exchanger for heat dissipation, a circulation pump, and the like.
- FIG. 14B is a schematic piping diagram showing a state in which two three-way valves are switched and cooling water is injected into a pipeline between the three-way valves.
- FIG. 14C is a schematic piping diagram showing a state where two three-way valves are further switched after the injection is completed.
- FIG. 15 is a perspective view when cooling water is injected into components of the endothermic cycle to which Embodiment 2 is applied.
- thermoelectric cooling system of the present invention will be described using a thermoelectric module type electric refrigerator as an example.
- 1 to 12 show the first embodiment.
- the housing of the thermoelectric modular electric refrigerator is composed of a refrigerator body 1 and a front door 4 pivotally supported by a shaft 3 to open and close the front opening 2 of the refrigerator body. ing.
- the back that closes the opening on the back of the refrigerator body 1 A heat insulating material 8 is provided between the partition wall 6 attached to the refrigerator body 1 inside the face plate 5 at a distance from the back plate 5 and the in-compartment molded body 7 attached inside the refrigerator body 1. Is filled.
- a heat-radiating heat exchanger 10 and a main heat exchanger 10 to be described later are provided in the outer chamber 9 formed between the back plate 5 and the bulkhead 6, as shown in FIGS. Manifolds 11 and 1 are arranged.
- the fan motors 13a and 13b are mounted on the upper part of the heat exchanger 10 for heat radiation via a hood 12 as shown in FIG.
- a first circulating pump 14a is mounted on the upper surface of the hood 12 between the fan motors 13a and 13b.
- a lower grille 15 with a suction port 15a is attached to the bottom of the outer chamber 9 and an upper grille with a discharge port 16a at the upper opening of the outer chamber 9. 16 are installed.
- the air drawn into the outside chamber 9 from the suction port 15a of the lower grill 15 by the operation of the fan motors 13a and 13b flows between the fins of the heat exchanger 10 for heat radiation.
- the gas passes through the outlet 16a of the upper grill 16 and is discharged to the outside.
- a cooling heat exchanger 20 is provided in the internal mechanical chamber 19 between the partition 17 attached to the internal molding ⁇ in the internal 17 formed inside the internal molding 7.
- a second circulating pump 14b is mounted above the cooling heat exchanger 20.
- a fan motor 13c is attached to an upper part of the partition wall 18, and a suction port 21 is formed in a lower part of the partition wall 18. The air in the compartment 17 is sucked from the suction port 21 of the bulkhead 18 into the internal power chamber 19 by the operation of the fan motor 13c, and is fed between the fins 20a of the cooling heat exchanger 20. Is discharged from the fan motor 13c to the inside 17 of the refrigerator and circulates.
- An ice making chamber 22 is provided in a part of the upper part of the refrigerator 17 as shown in FIGS. 1 and 4, and an auxiliary manifold 24 described later is provided on the back of the ice making plate 23. Installed.
- the main manifold 11 includes a Peltier device 25 as a thermoelectric module, a first heat exchange portion 26 a thermally coupled to a heat dissipation surface of the Peltier device 25, and a Peltier device 2. Second heat exchange part thermally coupled to the cooling surface of 5
- the auxiliary manifold 24 is also the same as the main manifold, and includes a Peltier element 29 as a thermoelectric module and a third heat exchange part 30 thermally coupled to the heat dissipation surface of the Peltier element 29.
- a Peltier element 29 as a thermoelectric module
- a third heat exchange part 30 thermally coupled to the heat dissipation surface of the Peltier element 29.
- the ice making plate 23 is in contact with the cooling surface of the Peltier element 29 and is thermally coupled.
- the first circulation path of the heat radiation system that circulates the cooling water between the first circulation pump 14a, the heat radiation heat exchanger 10 and the first heat exchange part 26a of the main manifold 11 is The configuration is as shown in FIG.
- a first connection pipe 32a is connected between the discharge port 31 of the first circulation pump 14a and one end 27a of the first heat exchange section 26a of the main manifold 111.
- a T-shaped joint 33a is interposed between the other end 27b of the first heat exchange part 26a of the main manifold 11 and one end of the heat exchanger 10 for heat radiation.
- connection port 34 of the T-shaped joint 33a is finally closed by a cap.
- connection pipe 32d The other end of the heat exchanger for heat dissipation 10 and the suction port 35 of the first circulation pump 14a are connected via the fourth connection pipe 32d and the T-shaped joint 33b. I have. T Finally, as shown in FIG. 9, the remaining connection port 36 of the shaped joint 33 b is provided with a first air reservoir 37 a that can extend and contract over the solid line position and the imaginary line position.
- the second circulation path of the heat absorbing system for circulating the cooling water between the second circulation pump 14 b, the cooling heat exchanger 20 and the second heat exchange section 26 b of the main manifold 11 is It is configured as shown in FIG.
- a fifth connection pipe 3 2 e connects between the discharge port 38 of the second circulation pump 14 b and one end 28 a of the second heat exchange section 26 b of the main manifold 11.
- a T-shaped joint 33c is interposed between the other end 28b of the second heat exchange part 26b of the main manifold 11 and one end of the heat exchanger 20 for cooling. They are connected by sixth and seventh connecting pipes 32 f and 32 g. The remaining connection port 39 of the T-shaped joint 33c is finally closed by a cap.
- the other end of the cooling heat exchanger 20 and one end of the third heat exchange part 30 of the auxiliary manifold 24 are connected by an eighth connection pipe 32h, and the auxiliary manifold 24 Between the other end of the third heat exchange section 30 and the suction port 40 of the second circulation pump 14 b via the ninth connection pipe 32 i and the T-shaped joint 33 d Have been.
- a second air reservoir 37b similar to the first air reservoir 37a is finally attached to the remaining connection port 41 of the T-shaped joint 33d.
- the main manifold 11 is actually covered with a heat insulating material.
- the first and second circulation paths were formed and each of them was filled with cooling water, specifically, a mixed solution of propylene glycol and water as cooling water, so that the main manifold 11 and the auxiliary manifold were filled.
- cooling water specifically, a mixed solution of propylene glycol and water as cooling water
- the first and second circulation pumps 14a and 14b are operated, and the fan motors 13a, 13b and 13c are operated.
- heat dissipation of Peltier element 25 The heat generated on the surface was heated by the cooling water flowing from the top to the bottom as shown by the arrow A in Figs.
- the cooling water radiates heat when passing through the heat exchanger 10 for heat radiation, the temperature decreases, and a heat radiation cycle circulating in the first heat exchange part 26a of the main manifold 11 is formed.
- the air flow B 1 sucked from the grill 15 and the heat generated on the heat release surface of the Peltu element 25 are heat-exchanged in the heat exchanger 10 for heat radiation, and the air flow B 2 warmed up and the upper grill 1 Released from 6 to the outside air.
- the cooling water flows from the lower side to the upper side in the second heat exchange section 26 b of the main manifold 1 1 as shown by the arrow C in FIGS. 3 and 8, and the cooling surface of the Peltier element 29
- the cooling water whose temperature has been lowered by cooling, exchanges heat with the circulating airflow D in the refrigerator 17 when passing through the cooling heat exchanger 20 to cool the refrigerator 17 and further cools the auxiliary manifold 2
- the cooling water exchanges heat with the heat dissipation surface of the Peltier element 29 and the temperature rises, and the second heat exchange section of the main manifold 1 1
- An endothermic cycle circulating in 26 b is formed.
- the first heat exchange of the main manifold 11 The temperature of the cooling water at the inlet side (one end 27a) of the part 26a is 36 ° C, and the temperature of the cooling water at the outlet side (the other end 27b) of the first heat exchange part 26a is 3 ° C. It was 9 ° C.
- the temperature of the cooling water at the inlet side (one end 28a) of the second heat exchange section 26 b of the main manifold 11 is 13 ° C, and the outlet side of the second heat exchange section 26 b ( The temperature of the cooling water at the other end 28 b) was 0 ° C, and the temperature of the cooling water at the outlet of the third heat exchange section 30 of the auxiliary manifold 24 was +2 ° C. At this time, the surface of the ice making plate 23 reached 110 ° C., and ice making was possible.
- thermoelectric module type electric refrigerator of the present invention the location of the first and second circulation pumps 14a and 14b is set.
- the first and second air reservoirs 37a and 37b are provided so that air bubbles do not circulate in the heat release cycle and heat absorption cycle.
- the first circulating pump 14a provided in the heat-dissipation cycle is used for the first heat exchange between the heat-dissipating heat exchanger 10 and the main manifold 11. It is located above section 26a.
- Bubbles mixed in the heat dissipation cycle collect near the suction port 35 of the first circulation pump 14a arranged at the top of the heat dissipation cycle, and the suction port is in operation during operation of the first circulation pump 14a.
- the air sucked from 35 and collected at the center of the pump impeller inside the first circulation pump 14a, the air bubbles discharged from the discharge port 31 of the first circulation pump 14a are reduced and circulate through the heat dissipation cycle The amount of bubbles decreases.
- the first air reservoir 37a during operation of the first circulation pump 14a is in a contracted state as shown by a solid line in FIG.
- Reference numeral 42 denotes the liquid level of the cooling water inside the first air reservoir 37a.
- the first air reservoir 37 a extends toward the position indicated by the phantom line in FIG. 9 and rises from the suction port 35. Bubbles are actively collected in the first air reservoir 37a.
- the second circulation pump 14 b provided in the heat absorption cycle is connected to the cooling heat exchanger 20 and the second heat exchange section 26 b of the main manifold 11.
- the auxiliary manifold 24 is disposed above the third heat exchange section 30.
- the air bubbles mixed in the heat absorption cycle gather near the suction port 40 of the second circulation pump 14b arranged above, gather at the center of the pump impeller, and circulate through the heat absorption cycle. Bubble volume decreases You.
- the second circulation pump 14 b is stopped, the second air reservoir 37 b is directed to the position indicated by the imaginary line in FIG. 9 similarly to the first air reservoir 37 a.
- the bubbles rising from the inlet 40 are positively collected in the second air reservoir 37b.
- the first and second air reservoirs 37a and 37b also function to adjust the pressure in the pipes during the heat release cycle and the heat absorption cycle. If the pressure in the pipe rises significantly, liquid leakage is likely to occur at the connection points of the piping in the circulation path.
- the first and second circulation pumps 14a, 1 During the operation of 4b, the first and second air reservoirs 37a and 37b expand and contract in accordance with the pipe pressure, which acts to prevent the pipe pressure from increasing significantly.
- thermoelectric module type electric refrigerator of the present invention an auxiliary manifold 24 is provided in the interior 17 separately from the main manifold 11, and the heat radiating surface of the auxiliary manifold 24 is used for cooling water of the heat absorption cycle. Since it was configured to exchange heat with ice, the ice making plate 23 was sufficiently cooled.
- FIG. 10 shows details in the vicinity of the auxiliary manifold 24 and the ice making plate 23.
- a concave portion 44 is formed on the upper surface of the aluminum ice making plate 23 so as to store an ice tray 43 or waste water generated when a defrosting operation is performed.
- 4 5 is a heat insulating material.
- the thermoelectric module type electric refrigerator of the present invention is configured as follows in order to reduce the dew condensation water as much as possible.
- e 1 extends through the side of the cooling heat exchanger 20 inside the internal combustion chamber 19 and extends near the main manifold 11 as shown in FIGS. 1 and 3.
- thermoelectric module type electric refrigerator collects air bubbles that have entered the circulation path of the cooling water into the first and second air reservoirs 37a and 37b to prevent the air bubbles from circulating together with the cooling water.
- the liquid filling method shown in Fig. 11 and Fig. 12 is used to fill the cooling water so that air bubbles are not mixed as much as possible. It is filled.
- Figure 11 shows how to fill the cooling cycle with cooling water.
- a pipeline is connected to the connection port 34 of the T-shaped joint 33a interposed between the heat exchanger for heat radiation 10 and the first heat exchange section 26a of the main manifold 11.
- One end of 50a is connected, and the other end of pipe 50a is immersed in cooling water of cooling water tank 51.
- the suction port of the self-priming pump 52 is connected to the connection port 36 of the T-shaped joint 33 b attached to the suction port 35 of the first circulation pump 14 a.
- Numeral 53 is a tank for receiving the cooling water discharged from the discharge port of the self-priming pump 52. It is also possible to configure so as to return to the cooling water tank 51 without providing the tank 53.
- the air in the circulation path of the heat radiation cycle is sucked out and the pressure in the pipe gradually decreases, and the cooling water in the cooling water tank 51 is supplied to the pipe 50 a. And is sucked up through the T-shaped joint 33a and flows into the circulation path of the heat dissipation cycle.
- the pipe from the T-shaped joint 33 a to the first circulating pump 14 a via the first heat exchange part 26 a of the main manifold 11 1 has substantially the same pipe resistance as the cooling water.
- the cooling water flowing in from the T-shaped joint 33a is not sucked up from only one side of the path, and the path passing through the heat exchanger 10 for heat radiation and the main manifold 11 It is gradually sucked up from both paths passing through the first heat exchange section 26a.
- the self-priming pump 52 After the self-priming pump 52 is continuously operated for a specified time after the cooling water is discharged from the discharge port of the self-priming pump 52, the operation of the self-priming pump 52 is stopped. In this state, remove conduit 50a from connection port 34 of T-shaped fitting 33a. At this time, since the connection port 36 of the T-shaped joint 33b is closed by the self-priming pump 52, the connection port 34 of the T-shaped joint 33a is removed even if the pipeline 50a is removed. The cooling water does not flow backward. The connection port 34 from which the pipe 50a has been removed is closed with a cap.
- the self-priming pump 52 can be connected to reduce the entrapment of air bubbles, and the cooling water can be gradually filled in the heat radiation cycle. There is no water leakage and stable refrigeration operation can be expected for a long period of time. Also, the removal of the conduit 50a and the self-priming pump 52 are easy, and the workability is good.
- Fig. 12 shows how to fill the endothermic cycle with cooling water.
- the T interposed between the cooling heat exchanger 20 and the second heat exchange part 26 b of the main manifold 11 Connect one end of conduit 50 b to connection port 39 of fitting 3 3 c
- the other end of the path 5 Ob is immersed in the cooling water of the cooling water tank 51.
- the suction port of the self-priming pump 52 is connected to the connection port 41 of the T-shaped joint 33d attached to the suction port 40 of the second circulation pump 14b.
- 53 is a tank for receiving the cooling water discharged from the discharge outlet of the self-priming pump 52. It may be configured to return to the cooling water tank 51 without providing the tank 53.
- the air in the circulation path of the heat absorption cycle is sucked out and the pressure inside the pipe gradually decreases, and the cooling water in the cooling water tank 51 is connected to the pipe 50b. It is sucked up through the T-shaped joint 33c and flows into the circulation path of the endothermic cycle.
- the pipe line from the T-shaped joint 33c to the second circulation pump 14b via the second heat exchange part 26b of the main manifold 11 1 The pipe line extending to the second circulation pump 14 b via the third heat exchange section 30 of the heat exchanger for heat radiation 20 and the auxiliary manifold 24 has substantially the same internal resistance as the cooling water. Therefore, the cooling water flowing from the T-shaped joint 33c is not sucked up only from one side of the path, and passes through the second heat exchange section 26b of the main manifold 11 And from the path passing through the cooling heat exchanger 20.
- the self-priming pump 52 After the self-priming pump 52 is continuously operated for a specified time after the cooling water is discharged from the discharge port of the self-priming pump 52, the operation of the self-priming pump 52 is stopped. In this state, remove conduit 50b from connection port 39 of T-joint 33c. At this time, since the connection port 41 of the T-shaped joint 33d is closed by the self-priming pump 52, the connection port 39 of the T-shaped joint 33c is removed even if the lane 50b is removed. The cooling water does not flow backward. The connection port 39 from which the pipe 50b is removed is closed with a cap.
- the self-priming pump 52 is connected to reduce the entrapment of air bubbles, and the cooling water can be gradually filled in the heat absorption cycle. There is no water leakage and stable refrigeration operation can be expected for a long period of time. Also, the pipe 50b and the self-priming pump 52 can be easily removed, and the workability is good.
- FIGS. 13 to 15 show the second embodiment.
- Embodiment 2 is different from Embodiment 1 in that first and second three-way valves are interposed in series in the circulation path, and cooling water is filled from the first and second three-way valves. .
- the first and second three-way valves 54a and 54b are interposed in the middle of the first connection pipe 32a.
- the first and second three-way valves 54a and 54b are interposed in the middle of the fifth connection pipe 32e.
- the cooling water injection method using the first and second three-way valves 54a and 54b is the same for both the heat release cycle and the heat absorption cycle. I do.
- the first and second three-way valves 54a and 54b interposed in the heat dissipation cycle are held at the upper position on the port P1 of the first three-way valve 54a. Cooling water is supplied from the filled liquid reservoir 55, and the port P1 of the second three-way valve 54b is opened to the tank 53 via the pipeline 56.
- valve bodies 57a and 57b of the first and second three-way valves 54a and 54b are arranged. Switch as shown in Fig. 14A respectively.
- the valve element 57a is in a switching state in which the port P1 and the port P2 of the first three-way valve 54a are communicated.
- the valve element 57b is in a switching state in which the port P1 and the port P3 of the second three-way valve 54b are communicated.
- the cooling water that has naturally flowed from the liquid reservoir 55 will be cooled by the first heat exchanger 26 a of the main manifold 11, the heat exchanger 10 for heat radiation, and the first circulation pump 1. It flows into the port P3 of the second three-way valve 54b via 4a, and naturally flows down to the tank 53 via the port P1 of the second three-way valve 54b and the pipeline 56. In other words, the cooling water is passed except for the pipe 58 connecting the port P3 of the first three-way valve 54a and the port P2 of the second three-way valve 54b.
- the valve bodies 57a and 57b of the first and second three-way valves 54a and 54b are switched as shown in Fig. 14B, respectively.
- the valve element 57a is in a switching state for communicating the port P1 and the port P3 of the first three-way valve 54a.
- the valve element 57b is in a switching state in which the port P1 and the port P2 of the second three-way valve 54b are communicated. Therefore, the cooling water flowing down from the liquid reservoir 55 naturally flows from the port P3 of the first three-way valve 54a through the pipe 58 to the port P2 of the second three-way valve 54b. And flows down naturally to the tank 53 via the port P 1 of the second three-way valve 54 b and the pipeline 56.
- valve bodies 57a and 57b of the first and second three-way valves 54a and 54b are switched as shown in Fig. 14C, respectively.
- the valve 5 7a is the first three-way valve 5 4
- the port P 2 and port P 3 are switched to communicate with each other.
- the valve element 57b is in a switching state in which the port P2 and the port P3 of the second three-way valve 54b are communicated. Therefore, between the first heat exchange section 26a of the main manifold 11 and the first circulation pump 14a, the first and second three-way valves 54a,
- the cooling water is filled while flowing down naturally from the liquid reservoir 55, but the cooling water is pumped from the port P1 of the first three-way valve 54a, or the first three-way valve 5
- the port P1 of 4a can be connected to the cooling water tank, and a self-priming pump can be connected to the port P1 of the second three-way valve 54b to suck up and fill the cooling water.
- the cooling water to be filled immediately flows into the circulation path to start the filling operation. Then, the self-priming pump operates the self-priming pump to suck up the pretreatment liquid that improves the condition of the inner surface of the circulation path, and then sucks up and fills the desired cooling water, so that air bubbles that enter the circulation path Can be further reduced.
- an acryl resin coating containing silica is used as a pretreatment liquid, and the pretreatment agent eliminates irregularities on the inner surface of the circulation path and reduces the surface roughness to 10%. ⁇ M smoothness.
- the liquid fills in a state in which the adhesion of air bubbles has been reduced to a very low level through a smooth pipe with no unevenness. Can be implemented.
- a surfactant can be used as the pretreatment liquid.
- the surfactant improves the wettability of the inner surface of the circulation path pipe, and when the desired cooling water is filled, the cooling water is better on the inner surface of the circulation path pipe.
- the liquid can be filled in a state in which it is familiar with and moves, and the adhesion of air bubbles is very small.
- the Peltier element as the thermoelectric module is adopted in the electric refrigerator, and the cooling water is passed through the first heat exchange section and the second heat exchange section. Not only can it be employed in a thermoelectric cooling system, but also cooling water can be passed through one of the first heat exchange section and the second heat exchange section.
- the liquid is filled in the circulation path by sucking up the cooling liquid by the self-priming pump, flowing down the cooling liquid, or pumping the cooling liquid, thereby improving the mechanical strength of the circulation path. Even if the mechanical strength does not exceed the strength required for normal operation of the refrigerator, it is possible to fill the cooling water with less air bubbles and contribute to the realization of a thermoelectric module type electric refrigerator with good thermal efficiency.
- the self-priming pump operates the self-priming pump to suck up the pretreatment liquid that improves the condition of the inner surface of the circulation path, and then sucks up the target liquid. By filling, it is possible to further reduce bubbles mixed into the circulation path.
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU48856/97A AU4885697A (en) | 1996-11-08 | 1997-11-07 | Liquid feeding method for thermoelectric cooling systems |
EP97911483A EP0949462A1 (en) | 1996-11-08 | 1997-11-07 | Liquid feeding method for thermoelectric cooling systems |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP8/296270 | 1996-11-08 | ||
JP29627096 | 1996-11-08 |
Publications (1)
Publication Number | Publication Date |
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WO1998021530A1 true WO1998021530A1 (fr) | 1998-05-22 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP1997/004061 WO1998021530A1 (fr) | 1996-11-08 | 1997-11-07 | Procede d'alimentation en liquide pour systemes de refroidissement thermoelectriques |
Country Status (6)
Country | Link |
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EP (1) | EP0949462A1 (ja) |
KR (1) | KR20000053148A (ja) |
CN (1) | CN1235664A (ja) |
AU (1) | AU4885697A (ja) |
TW (1) | TW359744B (ja) |
WO (1) | WO1998021530A1 (ja) |
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DE102004037341C5 (de) * | 2004-08-02 | 2008-06-19 | Dionex Softron Gmbh | Vorrichtung zum gekühlten Aufbewahren und Abgeben von Proben für eine integrierte Flüssigkeits-Kühleinheit |
CN102087060B (zh) * | 2010-08-02 | 2014-08-20 | 宫庆平 | 制冷设备节能阀及其应用 |
CN101976937A (zh) * | 2010-10-29 | 2011-02-16 | 长春轨道客车股份有限公司 | 动车组牵引变流器冷却液充注工艺方法 |
CN106403399B (zh) * | 2016-02-22 | 2019-11-01 | 绍兴西爱西尔数控科技有限公司 | 一种透空式冷媒增压站 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06504361A (ja) | 1991-01-15 | 1994-05-19 | ハイドロクール・プロプライエタリー・リミテッド | 熱電システム |
JPH0712421A (ja) * | 1993-06-25 | 1995-01-17 | Toyo Radiator Co Ltd | 冷却装置 |
JPH07234036A (ja) * | 1994-02-25 | 1995-09-05 | Aisin Seiki Co Ltd | 熱電変換素子の吸・発熱量可変装置 |
-
1997
- 1997-11-07 TW TW086116624A patent/TW359744B/zh active
- 1997-11-07 WO PCT/JP1997/004061 patent/WO1998021530A1/ja not_active Application Discontinuation
- 1997-11-07 AU AU48856/97A patent/AU4885697A/en not_active Abandoned
- 1997-11-07 KR KR1019990704082A patent/KR20000053148A/ko not_active Application Discontinuation
- 1997-11-07 CN CN97199440A patent/CN1235664A/zh active Pending
- 1997-11-07 EP EP97911483A patent/EP0949462A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06504361A (ja) | 1991-01-15 | 1994-05-19 | ハイドロクール・プロプライエタリー・リミテッド | 熱電システム |
JPH0712421A (ja) * | 1993-06-25 | 1995-01-17 | Toyo Radiator Co Ltd | 冷却装置 |
JPH07234036A (ja) * | 1994-02-25 | 1995-09-05 | Aisin Seiki Co Ltd | 熱電変換素子の吸・発熱量可変装置 |
Also Published As
Publication number | Publication date |
---|---|
KR20000053148A (ko) | 2000-08-25 |
EP0949462A1 (en) | 1999-10-13 |
CN1235664A (zh) | 1999-11-17 |
TW359744B (en) | 1999-06-01 |
AU4885697A (en) | 1998-06-03 |
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