JPH052803B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a rotational force conversion device using a cooler.

(Prior Art) As is well known, in conventional gas compression type refrigeration systems, refrigerant gas is compressed by a compressor and sent to a condenser as a high-temperature, high-pressure gas, where it is cooled and condensed to form a high-pressure refrigerant liquid.
It was depressurized through an expansion valve and sent to the evaporator as a low-temperature, low-pressure refrigerant liquid to absorb the latent heat necessary for evaporation and obtain a refrigeration effect. However, with this method, the power consumption of the compressor is extremely large.Therefore, as a way to reduce the power consumption of the compressor, research has been conducted on a method of using the expansion pressure of the refrigerant gas as the rotational force of the compressor. Part of the purpose was achieved by making the motor a vane type (Goethe pump type motor), and the invention as a result of this research was published, for example, in Japanese Patent Application Laid-Open No.
-117037.

(Problem to be solved by the invention) When the above method is adopted, both the compressor and the condenser are vane pump type and small and housed in a storage box. On the other hand, the evaporator is immersed in the antifreeze liquid to reach a low temperature, and during operation, it is operated in a storage box while continuously generating high and low temperatures. The low-temperature side operates while fulfilling its cooling function, but the high-temperature energy on the compressor side is cooled by the coolant and is not effectively used, but instead is dissipated.

(Means for Solving the Problems) The present invention generates high and low temperatures during operation in the above storage box, and maximizes the temperature difference between heating and cooling the coolant and antifreeze. The objective is to efficiently cool and heat the refrigerant gas by introducing a refrigerant gas circulation system into the coolant and antifreeze that are being cooled and heated, and to convert the expansion power of the refrigerant gas into rotational power. It was invented in

The present invention will be explained below based on the drawings.1.
1' is vane pump type (Goethe pump motor)
A storage box 3 containing coolant 2, 2' with a compressor,
Immerse yourself in 3'. 4 and 4' are vane pump type evaporators installed in parallel with the vane pump type compressor 1 in order to rotate coaxially with the rotor rotating shaft 5 of the vane pump type compressors 1 and 1'. Antifreeze 6, 6' in storage box 7, 7' containing 6, 6'
Immerse yourself inside. 8, 8' are vane pump type compressors 1, 1' and vane pump type evaporator 4,
4' are ventilation pipes on the compression side of the refrigerant gas, respectively. 9 and 9' are condensers provided in the middle of the ventilation pipe line 8 in communication with each other. Reference numerals 10 and 10' designate ventilation pipes on the expansion side of the refrigerant gas, which communicate with the vane pump type compressors 1 and 1' and the vane pump type evaporators 4 and 4', respectively. Reference numeral 11 denotes a refrigerant gas heater provided outside the storage box 7' containing the evaporator 4'. 12 is a heat exchange liquid placed in the refrigerant gas heater 11. 13 is a refrigerant gas heater 11
The turbine is connected to the turbine through an expansion side ventilation pipe 14.
15 is a heat absorber provided on the gas outflow side of the turbine 13 (left side in FIG. 1). 16 is a heat exchanger provided on the gas outflow side (left side in FIG. 1) of the heat absorber 15. 17 is a heat exchange liquid placed in the heat exchanger 16. Reference numeral 18 denotes a gas cooling pipe for refrigerant gas which is bent and provided in the antifreeze liquid 6' in which the evaporator 4' is immersed, and the gas outlet side (lower end side in FIG. 1) communicates with the refrigerant gas heater 11; The gas inflow side (upper end side in FIG. 1) is the heat exchanger 1.
6 via an air pipe 19. Reference numeral 20 denotes a heat exchange liquid heating tube which is bent into the refrigerant 2 into which the compressor 1 is immersed, and the outflow side of the heat exchange liquid (the upper end side in FIG. 1) is connected to the refrigerant gas heater 11. The lower part of the heat exchange liquid 12 is communicated with a heated liquid sending pipe 21, and the inflow side (lower end side in FIG. 1) of the heat exchange liquid is connected to the heat exchanger 16 through the liquid sending pipe 22. It communicates with the high temperature side of the service liquid 17. Reference numeral 23 denotes a liquid sending pipe that communicates the low temperature side of the heat exchange liquid 12 in the refrigerant gas heater 11 with the low temperature side of the heat exchange liquid 17 in the heat exchanger 16. Reference numeral 24 denotes a motor that is attached to one end of the rotor rotating shaft 5. 25,2
5' is the refrigerant gas (fluorocarbon gas) sealed in the refrigeration system.
It is.

(Function) Next, the function of the present invention will be described. When the rotor rotating shaft 5 is started by the motor 24, the rotors 26, 26' of the vane pump type compressors 1, 1' rotate, and the vanes 27, 27' Refrigerant gas 2 due to the eccentric action of
5 and 25' are compressed and sent as high-temperature, high-pressure gases to condensers 9 and 9', where they are cooled and condensed to form a high-pressure refrigerant liquid, which is then fed into vane pump type evaporators 4 and 4'. When the refrigerant liquid is injected into the vane pump type evaporators 4 and 4', it gasifies while absorbing latent heat, expands, and flows through the vanes 27 and 4'.
27' is pressed and rotated, and the rotational force of the vanes 27, 27' rotates the rotating shaft 5 via the rotors 28, 28', and the refrigerant gas 25, 25' is directed to the expansion side ventilation pipes 10, 10'. Each flows out and is reduced again into the vane pump type compressor 1, 1' to form a refrigeration system. Moreover, among the two refrigerant systems mentioned above,
The heating and cooling temperatures of the evaporator 4 and the compressor 1' are mutually connected at the center and cancel each other out.
The refrigerant gas that returns to the compressor 1 is heated to near room temperature and becomes larger, so the compressor 1 becomes hotter, and the temperature of the compressor 1' becomes lower and can be kept at about room temperature. Therefore, the cooling temperature of the evaporator 4' becomes lower. On the other hand, the heat exchange liquid 12 heated in the heat exchange liquid heating tube 20 immersed in the coolant 2 whose temperature has become high due to operation is passed through the heated liquid sending tube 21 into the refrigerant gas heater 11. The refrigerant gas reaches the temperature, heats the inside of the refrigerant gas heater 11, and after heat exchange, reaches the heat exchanger 16 through the liquid sending pipe 23, where it exchanges heat with the heat exchange liquid 17 in the heat exchanger 16. After that, the liquid passes through the liquid sending pipe 22 and is heated to the heat exchange liquid heating pipe 20.
Return to On the other hand, the antifreeze liquid 6' that has cooled down due to operation
The refrigerant gas 29 sealed in the gas cooling pipe 18 immersed therein is cooled and liquefied in the gas cooling pipe 18, flows out from the gas cooling pipe 18, and flows into the refrigerant gas heater 11, but in this case. Refrigerant gas heater 1
As the heated high-temperature heat exchange liquid 12 is circulated inside 1, the liquefied refrigerant gas 29 is heated, expands and vaporizes, passes through the expansion side vent pipe 14, and is injected into the turbine 13. After the turbine 13 is rotated and the rotational power is taken out of the machine, the heat absorber 15
It absorbs heat from the outside and captures thermal energy to approximately room temperature, then enters the heat exchanger 16, and in the latter half of the heat exchanger 16 (left half in Fig. 1), a After being cooled by heat exchange by the low temperature action from the liquid 12, the refrigerant gas is circulated back to the gas cooling pipe 18 through the air supply pipe 19.

(Embodiment) Freon gas is suitable for the refrigerant gases 25 and 25' used in the present invention, and liquid nitrogen is suitable for the refrigerant gas 29.

(Effect of the invention) When the present invention is carried out, in a cooler that employs a vane pump type compressor and evaporator, the high heat of the compressor that naturally occurs during cooling operation can be effectively used, and the low temperature generated by the evaporator can be used. The cooled and liquefied refrigerant gas is instantaneously heated and expanded, and this expansion force is converted through a turbine, allowing it to be effectively taken out of the machine as rotational force, and at the same time providing thermal energy to the refrigerant gas circulation system until it reaches approximately room temperature. This invention also makes it possible to increase output efficiency by incorporating

[Brief explanation of the drawing]

FIG. 1 is a partially longitudinally sectional front view showing the present invention. FIG. 2 is a longitudinal sectional view showing the vane evaporator. FIG. 3 is a longitudinal sectional view showing a vane pump type compressor. 1, 1'...Compressor, 2, 2'...Cooling liquid, 3, 3'
...Storage box, 4,4'...Evaporator, 5...Rotor rotating shaft, 6,6'...Antifreeze, 7,7'...Storage box, 8,
8'...Vent pipe line, 9,9'...Condenser, 10,10'
...Vent pipe line, 11... Refrigerant gas heater, 12... Heat exchange liquid, 13... Turbine, 14... Expansion side vent pipe,
DESCRIPTION OF SYMBOLS 15... Heat absorber, 16... Heat exchanger, 17... Liquid for heat exchange, 18... Gas cooling pipe, 19... Air supply pipe, 20... Liquid heating pipe for heat exchange, 21... Heating liquid supply pipe, 22... Liquid supply pipe , 23...liquid feeding pipe, 24...motor, 25,2
5'... Refrigerant gas, 26, 26'... Rotor, 27, 2
7'... Vane, 28, 28'... Rotor, 29... Refrigerant gas.

Claims (1)

[Claims] 1 In a cooler that uses a vane-type evaporator and compressor, a gas cooling pipe through which refrigerant gas passes is introduced into the antifreeze liquid in the storage box in which the evaporator is immersed, and a refrigerant gas heating The refrigerant gas is heated and expanded by introducing a high-temperature refrigerant from the compressor side, and then the expanded refrigerant gas is led to a turbine to rotate the turbine, and then to a heat absorber to bring it to approximately room temperature. The refrigerant gas is then introduced into the heat exchanger, and the latter half of the outlet side is connected to the low temperature side of the refrigerant gas heater to lower the temperature to the inlet side of the gas cooling pipe. A rotational power conversion device using a cooler, characterized by having a rotational output circulation system using recirculating refrigerant gas.