CN202993643U - Solar steam ejector cooling CO2 low temperature refrigerating system - Google Patents
Solar steam ejector cooling CO2 low temperature refrigerating system Download PDFInfo
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- CN202993643U CN202993643U CN 201220618328 CN201220618328U CN202993643U CN 202993643 U CN202993643 U CN 202993643U CN 201220618328 CN201220618328 CN 201220618328 CN 201220618328 U CN201220618328 U CN 201220618328U CN 202993643 U CN202993643 U CN 202993643U
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- water
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- heat exchanger
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Abstract
The utility model discloses a solar steam ejector cooling CO2 low temperature refrigerating system which is convenient to manage and operate. The solar steam ejector cooling CO2 low temperature refrigerating system comprises a solar heat collector, a generator and a hot water pump. The solar heat collector, the generator and the hot water pump are connected to form a solar heat collection cycle, an inlet connecting pipe of an ejector is connected with a high-temperature high-pressure steam outlet of the generator, an ejecting connecting pipe of the ejector is connected with a shell side outlet of a heat exchanger, an outlet connecting pipe of the ejector is connected with an inlet connecting pipe of a condenser, one branch of an outlet connecting pipe of the condenser is connected with a shell side inlet of the heat exchanger through a water expansion valve, and the other branch of the outlet connecting pipe of the condenser is connected with a cold water inlet of the generator to form a steam jet refrigeration cycle. An outlet of a refrigeration compressor is connected with a pipe side inlet of the heat exchanger, a pipe side outlet of the heat exchanger is connected with an inlet of an evaporator through a CO2 expansion valve, and an outlet of the evaporator is connected with an inlet of the refrigeration compressor to form a CO2 low temperature refrigeration cycle.
Description
Technical field
The utility model relates to cryogenic freezing technique of refrigeration field, particularly relates to the cooling CO of a kind of solar energy water steam ejection
2cryogenic refrigerating system.
Background technology
The develop rapidly of modern science and technology is when bringing huge interests for the mankind; also greatly welding and natural resources; exploitation new equipment and technique, raise the efficiency, save the energy, protection of the environment, realize that the sustainable development of industry has important practical significance.Solar energy is clean, pollution-free, renewable, substitutes or the alternative conventional energy resource driving of part refrigeration system, just day by day is subject to the attention of various countries.Chloro-fluoro-carbon kind manually synthetic refrigeration working medium causes depletion of the ozone layer and greenhouse effects, has become increasingly serious Global Environmental Problems, and finding the environmental protection refrigeration working medium has become the common focus of paying close attention to of international community.The steam jetting circulation system does not directly consume mechanical energy, simple in structure, no-rotary part, and without wearing and tearing, without lubricating oil, reliable, the life-span is long, and operating cost is low.C0
2viscosity is little at low temperatures, and flow resistance is little, and energy consumption is low, C0
2refrigeration system has good development prospect.
The utility model content
The purpose of this utility model is for the technological deficiency existed in prior art, and provides a kind of solar-assisted heat source part of utilizing to substitute conventional energy resource, natural refrigerant water and CO
2for cycle fluid, be convenient to management, easy to operate, protection of the environment, the cryogenic refrigerating system of the saving energy.
For realizing that the technical scheme that the purpose of this utility model adopts is:
The cooling CO of a kind of solar energy water steam ejection
2cryogenic refrigerating system, is characterized in that, comprises solar thermal collector, generator, injector, condenser, water expansion valve, water pump, heat exchanger, CO
2expansion valve, evaporimeter, refrigeration compressor, heat-exchanger pump; The outlet of described solar thermal collector is connected with the hot water inlet of described generator, and the cooling water outlet of described generator is connected with the entrance of described heat-exchanger pump, and the entrance of described hot water delivery side of pump and described solar thermal collector connects to form the solar energy heating circulation; The inlet connection of described injector is connected with the outlet of the high-temperature high-pressure steam of described generator, the injection of described injector is taken over the shell-side outlet of described heat exchanger and is connected, the discharge connection of described injector is connected with the inlet connection of described condenser, the discharge connection of described condenser is leaded up to the water expansion valve and is connected with the shell-side entrance of described heat exchanger, and another road connects to form the water vapour jet refrigeration circulation by the cooling water inlet of water pump and described generator; The outlet of described refrigeration compressor is connected with the pipe side entrance of described heat exchanger, and the pipe side outlet of described heat exchanger is by described CO
2expansion valve is connected with the entrance of described evaporimeter, and the outlet of described evaporimeter and the entrance of described refrigeration compressor connect to form CO
2the cryogenic refrigeration circulation; Described water vapour jet refrigeration circulation be take water as cycle fluid.
Be provided with temperature sensor and described electrical auxiliary heater in described generator, described temperature sensor is connected with the temperature signal input of temperature controller, and the control signal output of described temperature controller is connected with the power control terminal of described electrical auxiliary heater.
Compared with prior art, the beneficial effects of the utility model are:
1, the cooling CO of solar energy water steam ejection of the present utility model
2cryogenic refrigerating system utilizes solar-assisted heat source part to substitute conventional energy resource, natural refrigerant water and CO
2for cycle fluid, utilize water vapour to spray the cooling CO of injection
2the cryogenic refrigeration circulation of high-temperature gas, meet the demand of Food Freezing and Cold Storage to the low temperature environment space, saves the energy, protection of the environment.
2, the cooling CO of solar energy water steam ejection of the present utility model
2cryogenic refrigerating system, be convenient to management, cost-saving, environmental protection and energy saving, and convenient control, safe and reliable.
The accompanying drawing explanation
Figure 1 shows that the cooling CO of solar energy water steam ejection of the present utility model
2the schematic diagram of cryogenic refrigerating system;
Figure 2 shows that the adapter schematic diagram of the utility model injector;
Figure 3 shows that the adapter schematic diagram of the utility model generator;
Figure 4 shows that the adapter schematic diagram of heat exchanger of the present utility model.
In figure: 1. solar thermal collector, 2. generator, 3. injector, 4. condenser, 5. water expansion valve, 6. water pump, 7. heat exchanger, 8.CO
2expansion valve, 9. evaporimeter, 10. refrigeration compressor, 11. heat exchanger tube, 12. electrical auxiliary heater, 13. heat-exchanger pump, 14. mixing chamber, 15. diffuser, 16. the discharge connection of injector, 17. the injection of injector is taken over, 18. the inlet connection of injector, 19. the nozzle of injector, 20. the high-temperature high-pressure steam of generator outlet, 21. the cooling water inlet of generator, 22. the cooling water outlet of generator, 23. the hot water inlet of generator, 24. the shell-side of heat exchanger outlet, 25. the shell-side entrance of heat exchanger, 26. the pipe side outlet of heat exchanger, 27. the pipe side entrance of heat exchanger.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
The cooling CO of solar energy water steam ejection of the present utility model
2the schematic diagram of cryogenic refrigerating system as Figure 1-Figure 4, comprises solar thermal collector 1, generator 2, injector 3, condenser 4, water expansion valve 5, water pump 6, heat exchanger 7, CO
2expansion valve 8, evaporimeter 9, refrigeration compressor 10, heat-exchanger pump 13.The outlet of described solar thermal collector 1 is connected with the hot water inlet 23 of described generator 2, the cooling water outlet 22 of described generator 2 is connected with the entrance of described heat-exchanger pump 13, and the entrance of the outlet of described heat-exchanger pump 13 and described solar thermal collector 1 connects to form the solar energy heating circulation.The inlet connection 18 of described injector 3 is connected with the high-temperature high-pressure steam of described generator 2 outlet 20, the injection of described injector is taken over 17 and is connected with the shell-side outlet 24 of described heat exchanger 7, the discharge connection 16 of described injector is connected with the inlet connection of described condenser 4, the discharge connection of described condenser 4 is leaded up to water expansion valve 5 and is connected with the shell-side entrance 25 of described heat exchanger, and another road connects to form the water vapour jet refrigeration circulation by water pump 6 and the cooling water inlet 21 of described generator.The outlet of described refrigeration compressor 10 is connected with the pipe side entrance 27 of described heat exchanger, and the pipe side outlet 26 of described heat exchanger is by described CO
2expansion valve 8 is connected with the entrance of described evaporimeter 9, and the entrance of the outlet of described evaporimeter 9 and described refrigeration compressor 10 connects to form CO
2the cryogenic refrigeration circulation.Described water vapour jet refrigeration circulation be take water as cycle fluid.
In order to realize automatic control, be provided with temperature sensor in described generator 2, for the time in the solar irradiation deficiency still can be used, shown in be provided with electrical auxiliary heater 12 in generator.Described temperature sensor is connected with the temperature signal input of temperature controller, and the control signal output of described temperature controller is connected with the power control terminal of described electrical auxiliary heater.By the water temperature in temperature sensor measurement generator 2 and send temperature controller to, controlled the keying of electrical auxiliary heater 12 by temperature controller.
Start heat-exchanger pump 13, through the driving of heat-exchanger pump 13, water absorbs solar energy in solar thermal collector 1, and the hot water that temperature raises enters generator 2.Temperature sensor is experienced the water temperature in generator, if water temperature is lower than needed value, temperature sensor sends the temperature controller signal to, auxiliary heater 12 Automatic-heatings of being controlled by temperature controller, while reaching required temperature, the auxiliary heater automatic disconnection stops heating.
The high-temperature high-pressure steam on generator 2 tops is by nozzle 19 expansions in injector 3 and with flow at high speed, cause very low pressure at nozzle exit, because of the rate of outflow high, pressure is low, the low pressure water vapor that attracts the interior evaporation of heat exchanger 7 to generate, enter the mixing chamber 14 of injector 3, with after steam in mixing chamber together with enter diffuser 15, in diffuser, flow velocity reduces, the cooling medium that pressure enters in condenser 4 after raising and pipe is outer carries out the heat exchange temperature reduction, condense into liquid water, the water expansion valve 5 of leading up to dams after step-down and enters heat exchanger 7, for CO
2the CO that in the cryogenic refrigeration circulation, refrigeration compressor 10 is discharged
2the cooling condensation heat release of gas provides low-temperature receiver, and the water pump 6 of leading up to is got back to generator 2 and formed the water vapour jet refrigeration circulation.
The CO out from refrigeration compressor 10
2gas, in the heat exchanger tube 11 in heat exchanger 7 with the pipe outside cold water carry out heat exchange, emit heat and condense into CO
2liquid, through CO
2expansion valve 8 dams after step-down and enters the heat that evaporimeter 9 absorbs with cold space, for the freezing and refrigeration of food provides low-temperature receiver.
The above is only preferred embodiment of the present utility model; it should be noted that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (2)
1. the CO that the solar energy water steam ejection is cooling
2cryogenic refrigerating system, is characterized in that, comprises solar thermal collector, generator, injector, condenser, water expansion valve, water pump, heat exchanger, CO
2expansion valve, evaporimeter, refrigeration compressor, heat-exchanger pump; The outlet of described solar thermal collector is connected with the hot water inlet of described generator, and the cooling water outlet of described generator is connected with the entrance of described heat-exchanger pump, and the entrance of described hot water delivery side of pump and described solar thermal collector connects to form the solar energy heating circulation; The inlet connection of described injector is connected with the outlet of the high-temperature high-pressure steam of described generator, the injection of described injector is taken over the shell-side outlet of described heat exchanger and is connected, the discharge connection of described injector is connected with the inlet connection of described condenser, the discharge connection of described condenser is leaded up to the water expansion valve and is connected with the shell-side entrance of described heat exchanger, and another road connects to form the water vapour jet refrigeration circulation by the cooling water inlet of water pump and described generator; The outlet of described refrigeration compressor is connected with the pipe side entrance of described heat exchanger, and the pipe side outlet of described heat exchanger is by described CO
2expansion valve is connected with the entrance of described evaporimeter, and the outlet of described evaporimeter and the entrance of described refrigeration compressor connect to form CO
2the cryogenic refrigeration circulation; Described water vapour jet refrigeration circulation be take water as cycle fluid.
2. the cooling CO of solar energy water steam ejection according to claim 1
2cryogenic refrigerating system, it is characterized in that, be provided with temperature sensor and described electrical auxiliary heater in described generator, described temperature sensor is connected with the temperature signal input of temperature controller, and the control signal output of described temperature controller is connected with the power control terminal of described electrical auxiliary heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220618328 CN202993643U (en) | 2012-11-21 | 2012-11-21 | Solar steam ejector cooling CO2 low temperature refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220618328 CN202993643U (en) | 2012-11-21 | 2012-11-21 | Solar steam ejector cooling CO2 low temperature refrigerating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202993643U true CN202993643U (en) | 2013-06-12 |
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ID=48564817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220618328 Expired - Fee Related CN202993643U (en) | 2012-11-21 | 2012-11-21 | Solar steam ejector cooling CO2 low temperature refrigerating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202993643U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180558A (en) * | 2015-10-11 | 2015-12-23 | 钟小强 | Solar ejection refrigeration refrigerator |
| CN109869940A (en) * | 2019-03-26 | 2019-06-11 | 天津商业大学 | Injecting type critical-cross carbon dioxide double-stage compressive refrigerating system |
-
2012
- 2012-11-21 CN CN 201220618328 patent/CN202993643U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180558A (en) * | 2015-10-11 | 2015-12-23 | 钟小强 | Solar ejection refrigeration refrigerator |
| CN109869940A (en) * | 2019-03-26 | 2019-06-11 | 天津商业大学 | Injecting type critical-cross carbon dioxide double-stage compressive refrigerating system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20141121 |
|
| EXPY | Termination of patent right or utility model |