Direct-driven cooling device of compressor

Abstract

The utility model relates to a compressor direct-drive cooling device which comprises a compressor, a condenser, a liquid storage device, a drying filter, a first flow sensor, a first electric control valve, an electronic expansion valve, a liquid supply port, a liquid return port, a heater and a gas-liquid separator. The compressor, the condenser, the liquid storage device, the drying filter, the first flow sensor, the first electric control valve, the electronic expansion valve, the liquid supply port, the liquid return port, the heater and the gas-liquid separator are sequentially connected, and a heat exchange element is connected between the liquid supply port and the liquid return port. And the cooling medium circularly flows in the heat exchange element to absorb heat of the load heating element so as to cool the load heating element. According to the utility model, the load heating element is cooled by utilizing the evaporation heat absorption of the cooling medium in the circulating flow process, the circulating power of the cooling medium directly comes from the compressor, the whole circulating process can form a complete refrigeration cycle, and the lower liquid supply temperature can be realized; and parameters such as liquid supply temperature, pressure, flow and dryness can be monitored, adjusted and controlled.

Description

TECHNICAL FIELD

[0001] The utility model relates to a compressor direct drive cooling device. BACKGROUND

[0002] At present, pump drive cooling unit is generally used to cool the heat generating elements of user load, and the pump drive cooling unit is mainly composed of a condenser, a liquid storage tank, a working medium pump, an evaporator and connecting pipelines therebetween, the power source of the pump drive cooling unit is the working medium pump, the liquid supply temperature is limited by the condensing temperature, the liquid supply temperature cannot be flexibly adjusted and is simply cooled by air cooling. Moreover, the pressure and dryness of the load supplied by the pump drive cooling unit are inconvenient to adjust. For the cold storage type unit, the liquid supply temperature is required to be low, and the liquid supply temperature, pressure and dryness can be adjusted. Obviously, the current pump drive cooling unit system cannot meet the requirements. SUMMARY

[0003] In order to overcome the defects of the prior art, the utility model provides a compressor direct drive cooling device, which uses the evaporation heat absorption of the cooling medium in the circulating flow process to cool and lower the temperature of the load heat generating elements, the circulating power of the cooling medium is directly derived from the compressor, becomes high temperature and high pressure gas after being compressed by the compressor, enters the condenser to be condensed, becomes low temperature and low pressure liquid medium after being expanded by the electronic expansion valve, directly exchanges heat with the load heat generating elements, and becomes gas after being evaporated by the heater, returns to the compressor, and circulates repeatedly. The utility model can realize low liquid supply temperature, and the liquid supply temperature, pressure, flow, dryness and other parameters can be monitored, adjusted and controlled.

[0004] The utility model discloses a compressor direct drive cooling device, which comprises a compressor, a condenser, a liquid storage tank, a drying filter, a first flow sensor, a first electric regulating valve, an electronic expansion valve, a liquid supply port, a liquid return port, a heater and a gas-liquid separator. The gas outlet of the compressor is connected with the condenser, the outlet of the condenser is connected with the liquid storage tank, the outlet of the liquid storage tank is connected with the drying filter, the outlet of the drying filter is connected with the first flow sensor, the outlet of the first flow sensor is connected with the first electric regulating valve, the outlet of the first electric regulating valve is connected with the electronic expansion valve, the size of the medium flow entering the electronic expansion valve is adjusted through the first electric regulating valve, the outlet of the electronic expansion valve is connected with the liquid supply port, the liquid supply port is connected with the liquid return port, the liquid return port is connected with the heater, the outlet of the heater is connected with the gas-liquid separator, and the outlet of the gas-liquid separator is connected with the gas inlet of the compressor.

[0005] The compressor direct drive cooling device described above is provided with a heat exchange element connected between the liquid supply port and the liquid return port, which is used to cool and lower the temperature of the load heat generating elements.

[0006] Further, the specific form of the heat exchange element includes, but is not limited to, a heat exchanger or a cold plate or a cooling pipeline.

[0007] The compressor direct-drive cooling device further comprises temperature sensors arranged on the connecting pipes between the gas-liquid separator and the compressor, the compressor and the condenser.

[0008] The compressor direct-drive cooling device further comprises temperature sensors and pressure sensors arranged on the connecting pipes between the condenser and the liquid reservoir, the first electric regulating valve and the electronic expansion valve, the electronic expansion valve and the liquid supply port, and the liquid return port and the heater.

[0009] Further, the liquid reservoir is provided with temperature sensors and pressure sensors.

[0010] The compressor direct-drive cooling device further comprises a flow regulating pipeline, one end of which is arranged in communication with the outlet of the first flow sensor on the pipeline between the first flow sensor and the first electric regulating valve, and the other end of which is arranged in communication with the inlet of the heater on the pipeline between the liquid return port and the heater.

[0011] Further, the flow regulating pipeline is further provided with a second electric regulating valve and a second flow sensor, and the second flow sensor is arranged between the second electric regulating valve and the heater.

[0012] The compressor direct-drive cooling device further comprises a control module electrically connected with the compressor, the heater, the first flow sensor, the second flow sensor, the temperature sensors, the pressure sensors, the first electric regulating valve and the second electric regulating valve, and the control module is further provided with a display screen.

[0013] Compared with the prior art, the utility model has obvious advantages and beneficial effects. By the above technical scheme, the utility model can achieve considerable technical progress and practicality, and has wide utilization value, and at least has the following advantages:

[0014] (1) The utility model utilizes the evaporation heat absorption of the cooling medium in the circulating flow process to cool and lower the temperature of the load heating element, the power of the cooling medium circulation directly comes from the compressor, the high-temperature and high-pressure gas compressed by the compressor enters the condenser to be condensed, the condensed cooling medium enters the liquid reservoir, and then is dried and filtered by the drying filter to remove impurities, enters the electronic expansion valve, becomes low-temperature and low-pressure liquid medium after expansion by the electronic expansion valve, and enters the heat exchange element through the liquid supply port, directly exchanges heat with the load heating element in the heat exchange element, and lowers the temperature of the load heating element. The low-temperature and low-pressure liquid medium absorbs heat and evaporates in the heat exchange process, most of which becomes gaseous, and the gaseous and liquid two-phase medium is evaporated by the heater and separated by the gas-liquid separator, the gaseous medium enters the compressor, and the circulation is repeated.

[0015] (2) The utility model discloses a refrigeration system without evaporator, which is connected with the heat generating element of the user load to form a refrigeration cycle system. In the refrigeration process, the cooling medium directly exchanges heat with the heat generating element of the user load in the heat exchange element to cool the heat generating element of the user load, and the heat generating element of the user load plays the role of the evaporator to absorb heat during the heat exchange process of the cooling medium.

[0016] (3) The utility model discloses that the temperature sensor is set at the compressor inlet and outlet, and the gas temperature entering the compressor and the gas temperature after compression can be monitored. The temperature sensor and the pressure sensor are set on the connecting pipe between the condenser and the liquid accumulator, and the temperature and the pressure of the gas-liquid two-phase medium discharged from the condenser can be monitored. The flow of the medium entering the electronic expansion valve is adjusted through the first electric regulating valve, and the temperature and the pressure of the medium entering the electronic expansion valve can be monitored through the temperature sensor and the pressure sensor between the first electric regulating valve and the electronic expansion valve. The temperature and the pressure of the liquid medium discharged from the electronic expansion valve can be controlled by adjusting the opening of the electronic expansion valve. The temperature and the pressure of the liquid cooling medium entering the heat exchange element can be monitored through the temperature sensor and the pressure sensor between the electronic expansion valve and the liquid supply port. The temperature and the pressure of the medium entering the heater can be monitored through the temperature sensor and the pressure sensor between the liquid return port and the heater. The dryness of the liquid medium entering the liquid supply port can be obtained by monitoring the pressure and the temperature of the cooling medium before entering the electronic expansion valve and the pressure and the temperature of the liquid medium discharged from the electronic expansion valve and consulting the pressure-enthalpy diagram.

[0017] (4) The utility model discloses that the flow regulating pipe is further set on the compressor direct-drive cooling device pipeline, the second electric regulating valve and the second flow sensor are set on the flow regulating pipe, and the flow of the medium entering the electronic expansion valve can be further adjusted through the flow regulating pipe to realize the deep adjustment of the temperature and the pressure of the expanded medium.

[0018] (5) The driving force of the utility model directly comes from the compressor, the heat exchange element is connected with the heat generating element of the user load, the whole circulation process can form a complete refrigeration cycle, the liquid supply temperature, the liquid supply pressure, the liquid supply flow, the dryness and other parameters can be monitored, adjusted and controlled.

[0019] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, which can be implemented according to the content of the specification, and in order to make the above and other purposes, characteristics and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are described in detail, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1The utility model is a schematic view of compressor direct drive cooling device.

[0021]

Element and symbol explanation

[0022] 1-compressor;

[0023] 2-condenser;

[0024] 3-liquid accumulator;

[0025] 4-dry filter;

[0026] 5-first flow sensor;

[0027] 6-first electric regulating valve;

[0028] 7-electronic expansion valve;

[0029] 8-liquid supply port;

[0030] 9-liquid return port;

[0031] 10-heater;

[0032] 11-gas-liquid separator;

[0033] 12-temperature sensor;

[0034] 13-pressure sensor;

[0035] 14-flow regulating pipeline;

[0036] 15-second electric regulating valve;

[0037] 16-second flow sensor;

[0038] 17-heat exchange element. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the utility model embodiment more clear, the technical scheme of the utility model will be described clearly and completely below by combining with specific embodiments and drawings. Obviously, the features described are only part of the embodiments of the utility model, not all. Therefore, the following detailed description of the utility model provided in the drawings is not intended to limit the scope of protection, but only to represent the selected embodiments of the utility model. Based on the embodiments described below, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0040] As Figure 1As shown, the compressor direct drive cooling device provided by the utility model includes a compressor 1, a condenser 2, a liquid accumulator 3, a drying filter 4, a first flow sensor 5, a first electric regulating valve 6, an electronic expansion valve 7, a liquid supply port 8, a liquid return port 9, a heater 10 and a gas-liquid separator 11. The gas outlet of the compressor is connected with the inlet of the condenser, the outlet of the condenser is connected with the inlet of the liquid accumulator, the outlet of the liquid accumulator is connected with the inlet of the drying filter, the outlet of the drying filter is connected with the inlet of the first flow sensor, the outlet of the first flow sensor is connected with the inlet of the first electric regulating valve, the outlet of the first electric regulating valve is connected with the inlet of the electronic expansion valve, the outlet of the electronic expansion valve is connected with the liquid supply port, and the liquid supply port is connected with the liquid return port through a heat exchange element 17. The heat exchange element is used for cooling and temperature reduction of the load heating element, and can be a heat exchanger, a cold plate or a cooling pipeline. The liquid return port is also connected with the inlet of the heater, the outlet of the heater is connected with the inlet of the gas-liquid separator, and the outlet of the gas-liquid separator is connected with the air inlet of the compressor.

[0041] Further, temperature sensors 12 are arranged on the connecting pipes between the gas-liquid separator and the compressor and between the compressor and the condenser. Temperature sensors 12 and pressure sensors 13 are arranged on the connecting pipes between the condenser and the liquid accumulator, between the first electric regulating valve and the electronic expansion valve, between the electronic expansion valve and the liquid supply port and between the liquid return port and the heater. Temperature sensors and pressure sensors are also arranged on the liquid accumulator.

[0042] The liquid accumulator stores liquid cooling medium.

[0043] When the compressor direct drive cooling device is used for cooling and temperature reduction of the load heating element, the compressor discharges high-temperature and high-pressure gas after compressing the gas, thereby providing power for the refrigeration cycle. The high-temperature and high-pressure gas becomes gas-liquid two-phase medium after passing through the condenser, enters the liquid accumulator, and then enters the drying filter. After drying and filtering, the gas-liquid two-phase medium enters the first flow sensor, and then enters the electronic expansion valve through the first electric regulating valve. After expansion, the low-temperature and low-pressure liquid medium enters the heat exchange element through the liquid supply port. The heat exchange element is used for cooling and temperature reduction of the load heating element, and can be a heat exchanger, a cold plate or a cooling pipeline. After absorbing the heat of the load heating element, most of the liquid medium in the heat exchange element becomes gaseous medium. The gas-liquid two-phase medium after heat exchange enters the heater through the liquid return port, is heated into gaseous medium (containing a small amount of liquid), and then enters the gas-liquid separator. The gaseous medium after gas-liquid separation is sucked into the compressor, is compressed into high-temperature and high-pressure gas, and continues to circulate.

[0044] The utility model discloses a cooling system for load heating element, which comprises a compressor, a condenser, an electronic expansion valve, a heat exchange element, a heater and a gas-liquid separator.

[0045] The temperature and pressure of the gas entering the compressor and the compressed gas can be monitored by the temperature sensor and pressure sensor arranged at the inlet and outlet of the compressor.

[0046] The temperature and pressure of the gas-liquid two-phase medium discharged from the condenser can be monitored by the temperature sensor and pressure sensor arranged on the connecting pipe between the condenser and the liquid accumulator.

[0047] The temperature and pressure of the medium in the liquid accumulator can be monitored by the temperature sensor and pressure sensor arranged on the liquid accumulator.

[0048] The flow of the gas-liquid two-phase medium entering the electronic expansion valve can be monitored by the first flow sensor, and the flow of the gas-liquid two-phase medium entering the electronic expansion valve can be adjusted by the first electric regulating valve. The temperature and pressure of the gas-liquid two-phase medium entering the electronic expansion valve can be monitored by the temperature sensor and pressure sensor arranged between the first electric regulating valve and the electronic expansion valve.

[0049] The temperature and pressure of the low-temperature and low-pressure liquid medium entering the heat exchange element can be monitored by the temperature sensor and pressure sensor arranged between the electronic expansion valve and the liquid supply port.

[0050] The temperature and pressure of the gas-liquid two-phase medium entering the heater can be monitored by the temperature sensor and pressure sensor arranged between the liquid return port and the heater.

[0051] Further, the compressor direct drive cooling device is further provided with a flow regulating pipeline 14, one end of the flow regulating pipeline is arranged on the pipeline between the first flow sensor and the first electric regulating valve and is communicated with the outlet of the first flow sensor, the other end is arranged on the pipeline between the liquid return port and the heater and is communicated with the inlet of the heater. The flow regulating pipeline is further provided with a second electric regulating valve 15 and a second flow sensor 16, the second flow sensor is arranged between the second electric regulating valve and the heater. When the first flow sensor monitors that the medium flow entering the electronic expansion valve is too large and the first electric regulating valve is insufficient to reduce the flow value to the target value, the second electric regulating valve opening size can be controlled to adjust the medium flow entering the flow regulating pipeline, thereby shunting the medium flow entering the electronic expansion valve and keeping the medium flow entering the electronic expansion valve at the target set value. The shunted medium directly enters the heater and then enters the gas-liquid separator and the compressor to circulate. The second flow sensor is used for monitoring the medium flow entering the flow regulating pipeline.

[0052] Further, the compressor, the heater, the first flow sensor, the second flow sensor, the temperature sensor, the pressure sensor, the first electric regulating valve and the second electric regulating valve arranged on the pipeline of the compressor direct drive cooling device are electrically connected with the control module (in order to make Figure 1 The control module and the lines connected with various components are not shown for clear display). The control module is further provided with a display screen. The target flow value is set in the control module, an analog signal is output to the first electric regulating valve and the second electric regulating valve through PID operation, the opening of the first electric regulating valve and the second electric regulating valve is adjusted, and the flow of the cooling medium entering the electronic expansion valve reaches the target flow value. The target flow value can be displayed on the display screen of the control module.

[0053] Further, the temperature and pressure of the liquid medium discharged from the electronic expansion valve can be controlled by adjusting the opening of the electronic expansion valve.

[0054] The data monitored by all the temperature sensors, pressure sensors and flow sensors can be displayed on the display screen of the control module.

[0055] Further, the dryness of the liquid medium entering the liquid supply port can be obtained by monitoring the pressure and temperature of the cooling medium before entering the electronic expansion valve and the pressure and temperature of the liquid discharged from the electronic expansion valve, and the dryness is displayed on the display screen of the control module.

[0056] The driving force of the utility model directly comes from the compressor, the whole circulation process can form a complete refrigeration cycle, a lower liquid supply temperature can be realized, and the liquid supply temperature, pressure, flow, dryness and other parameters can be monitored, adjusted and controlled.

[0057] The above is only the embodiment of the present application, and does not limit the present application in any form. The present application can also have other forms of embodiments according to the above structure and function, which are not listed one by one. Therefore, any skilled person in the art, without departing from the scope of the technical scheme of the present application, according to the technical essence of the present application, any simple modification, equivalent change and modification of the above embodiments, still belongs to the scope of the technical scheme of the present application.

Claims

1. A compressor direct drive cooling device, characterized by, Compressor (1), condenser (2), liquid reservoir (3), dry filter (4), first flow sensor (5), first electric regulating valve (6), electronic expansion valve (7), liquid supply port (8), liquid return port (9), heater (10) and gas-liquid separator (11) are included; the gas outlet of the compressor is connected with the condenser, the outlet of the condenser is connected with the liquid reservoir, the outlet of the liquid reservoir is connected with the dry filter, the outlet of the dry filter is connected with the first flow sensor, the outlet of the first flow sensor is connected with the first electric regulating valve, the outlet of the first electric regulating valve is connected with the electronic expansion valve, the medium flow size entering the electronic expansion valve is adjusted through the first electric regulating valve, the outlet of the electronic expansion valve is connected with the liquid supply port, the liquid supply port is connected with the liquid return port, the liquid return port is connected with the heater, the outlet of the heater is connected with the gas-liquid separator, and the outlet of the gas-liquid separator is connected with the gas inlet of the compressor.

2. The compressor direct drive chiller of claim 1, wherein, A heat exchange element is connected between the liquid supply port and the liquid return port, and the load heating element is cooled and cooled through the heat exchange element.

3. The compressor direct drive chiller of claim 2, wherein, The heat exchange element is at least a heat exchanger or a cold plate or a cooling pipeline.

4. The compressor direct drive chiller of claim 1, wherein, Temperature sensors (12) are arranged on the connecting pipes between the gas-liquid separator and the compressor and between the compressor and the condenser.

5. The compressor direct drive chiller of claim 1, wherein, Temperature sensors (12) and pressure sensors (13) are arranged on the connecting pipes between the condenser and the liquid reservoir, between the first electric regulating valve and the electronic expansion valve, between the electronic expansion valve and the liquid supply port, and between the liquid return port and the heater.

6. Compressor direct drive cooling device according to claim 4 or 5, characterized in that Temperature sensors and pressure sensors are arranged on the liquid reservoir.

7. The compressor direct drive chiller of claim 1, wherein, A flow regulating pipeline (14) is further arranged, one end of the flow regulating pipeline is arranged in communication with the outlet of the first flow sensor on the pipeline between the first flow sensor and the first electric regulating valve, and the other end is arranged in communication with the inlet of the heater on the pipeline between the liquid return port and the heater.

8. The compressor direct drive chiller of claim 7, wherein, Second electric regulating valves (15) and second flow sensors (16) are further arranged on the flow regulating pipeline, and the second flow sensors are arranged between the second electric regulating valves and the heater.

9. The compressor direct drive chiller of claim 1, wherein, The compressor, the heater, the first flow sensor, the second flow sensor, the temperature sensor, the pressure sensor, the first electric regulating valve and the second electric regulating valve are electrically connected with the control module.

10. The compressor direct drive chiller of claim 9, wherein, A display screen is further arranged on the control module.

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