CN214065349U - Direct evaporation type solar jet refrigeration device - Google Patents
Direct evaporation type solar jet refrigeration device Download PDFInfo
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- CN214065349U CN214065349U CN202023176637.6U CN202023176637U CN214065349U CN 214065349 U CN214065349 U CN 214065349U CN 202023176637 U CN202023176637 U CN 202023176637U CN 214065349 U CN214065349 U CN 214065349U
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- rectangular frame
- solar
- heat collection
- ejector
- connecting pipe
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- 238000001704 evaporation Methods 0.000 title claims abstract description 10
- 230000008020 evaporation Effects 0.000 title claims abstract description 10
- 238000005057 refrigeration Methods 0.000 title claims description 30
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 239000007921 spray Substances 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 26
- 230000005855 radiation Effects 0.000 claims description 11
- 238000010521 absorption reaction Methods 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 2
- 239000003507 refrigerant Substances 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract 1
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 229920006395 saturated elastomer Polymers 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000013529 heat transfer fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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- Sorption Type Refrigeration Machines (AREA)
Abstract
The utility model discloses a direct evaporation formula solar energy sprays refrigerating plant, including rectangular frame, the rectangular frame top is equipped with solar energy collection mechanism, solar energy collection mechanism one side is equipped with sprays refrigerating mechanism. The beneficial effects of the utility model are that, effectively reduce refrigerating plant's volume, reduced heat transfer link in the middle of the refrigerant, can effectively improve the energy-conserving effect of system, improve solar energy utilization ratio when reducing system's heat transmission loss to reach the effect that improves the energy efficiency ratio of system.
Description
Technical Field
The utility model relates to a refrigeration equipment technical field, more specifically say, relate to a direct evaporation formula solar energy sprays refrigerating plant.
Background
The jet refrigerating system is a refrigerating device driven by heat energy, wherein a steam ejector is equivalent to a compressor in compression refrigeration, and high-pressure working steam ejects a low-pressure gaseous refrigerant of an evaporator in the ejector and pressurizes the refrigerant; to achieve the compressor function in compression refrigeration. Such a refrigeration system does not directly consume mechanical energy, and in an injection refrigeration system, the heat source is usually a boiler, an electric heater, or the like; with the continuous development of energy-saving technology, an injection type refrigeration system using solar energy as a heat source is receiving more and more attention;
solar jet refrigeration is used as a system for refrigerating by using solar energy as a low-level heat source, and mainly comprises two parts: the solar heat collection system is a main energy source for jet refrigeration; the jet refrigeration system provides cold energy for users; in the solar heat conversion subsystem, a solar heat collector converts solar energy into heat energy, and a refrigerant liquid in the solar heat conversion subsystem absorbs heat and is vaporized by flowing a heat transfer fluid through a generator; in the refrigeration sub-cycle, refrigerant liquid absorbs heat to vaporize to generate saturated steam, the saturated steam flows through the ejector to generate low pressure near the nozzle, so that the refrigerant steam in the evaporator is sucked into the ejector to be mixed, and the refrigerant steam is boosted in the same-diameter contraction and expansion section; the mixed gas from the ejector enters a condenser for condensation; refrigerant liquid from the condenser is divided into two paths, one path returns to the evaporator after being subjected to pressure reduction through a throttle valve, and the other path enters the generator after being subjected to pressure increase through a circulating pump;
from the above analysis, it can be seen that, in the current solar jet refrigeration system, the solar heat collection system mainly uses water as a medium, and absorbs solar energy in the heat collector as a heat source of the jet system, so that the system needs to be provided with a water tank, a circulating pump and other components, which results in a large volume of the solar jet system and poor economical efficiency. Meanwhile, energy transfer is realized between water and the refrigerant through heat exchange, so that the heat transfer loss of the system is increased, and the performance coefficient of the refrigeration cycle of the whole injection system is reduced;
in the existing patent documents and other data, the main research direction is a composite system combining a solar jet refrigeration system and other refrigeration modes; for example, publication No. CN200710056427 discloses a solar injection and variable speed compression integrated refrigeration device. However, the device with the structure has the advantages of large volume, complex structure, low solar energy utilization efficiency, low system energy efficiency and unfavorable integrated application with buildings.
SUMMERY OF THE UTILITY MODEL
To overcome the defects, the utility model provides a direct evaporation formula solar energy sprays refrigerating plant solves above-mentioned problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a direct evaporation type solar jet refrigeration device comprises a rectangular frame, wherein a solar heat collection mechanism is arranged above the rectangular frame, and a jet refrigeration mechanism is arranged on one side of the solar heat collection mechanism;
the solar heat collection mechanism comprises a solar heat collection generator shell at the upper end of a rectangular frame, the solar heat collection generator shell is fixedly connected with the rectangular frame, a heat absorption plate is installed in the solar heat collection generator shell, a coil is installed on the side surface of the heat absorption plate, anti-reflection glass is installed on the side surface of the solar heat collection generator shell, and a heat insulation cotton shell is installed on the inner side of the solar heat collection generator shell;
the injection refrigeration mechanism comprises an injector at the upper end of a rectangular frame, the injector is fixedly connected with the rectangular frame, an evaporator is arranged on one side of the rectangular frame and fixedly connected with the rectangular frame, a condenser is arranged at the center of the rectangular frame and fixedly connected with the rectangular frame, a liquid reservoir is arranged below the condenser and fixedly connected with the rectangular frame, a circulating pump is arranged at the lower end of the rectangular frame and fixedly connected with the rectangular frame, and an expansion valve is arranged on one side of the lower end of the rectangular frame; a first connecting pipe is arranged between the coil pipe and the ejector, a second connecting pipe is arranged between the ejector and the condenser, and a third connecting pipe is arranged between the ejector and the evaporator; a fourth connecting pipe is arranged between the condenser and the liquid reservoir, a fifth connecting pipe is arranged between the liquid reservoir and the expansion valve, and a sixth connecting pipe is arranged between the expansion valve and the evaporator; a first transmission pipe is arranged between the liquid storage device and the circulating pump, and a second transmission pipe is arranged between the circulating pump and the coil pipe.
Furthermore, one end of the second transmission pipe is provided with a flowmeter, and the other end of the second transmission pipe is provided with a temperature controller.
Furthermore, an anemoscope is installed at one end of the shell of the solar heat collection generator.
Furthermore, a total solar radiation meter is installed on one side of the solar heat collection generator shell, and a scattering radiation meter is installed on the other side of the solar heat collection generator shell.
Furthermore, a pressure sensor is installed at one end of the second transmission pipe, and a temperature sensor is installed at one side of the pressure sensor.
The utility model has the advantages that: the volume of the refrigerating device is effectively reduced, the intermediate heat exchange link of the refrigerating working medium is reduced, the energy-saving effect of the system can be effectively improved, the heat transfer loss of the system is reduced, and meanwhile, the solar energy utilization rate is improved, so that the effect of improving the energy efficiency ratio of the system is achieved.
Drawings
Fig. 1 is a schematic structural diagram of a direct evaporation type solar jet refrigeration device according to the present invention;
FIG. 2 is a cross-sectional schematic view of a solar energy collection mechanism;
in the figure, 1, a rectangular frame; 2. a solar heat collection generator housing; 3. a heat absorbing plate; 4. a coil pipe; 5. anti-reflection glass; 6. a heat-insulating cotton shell; 7. an ejector; 8. an evaporator; 9. a condenser; 10. a liquid reservoir; 11. a circulation pump; 12. an expansion valve; 13. a first connecting pipe; 14. a second connecting pipe; 15. a third connecting pipe; 16. a fourth connecting pipe; 17. connecting a pipe V; 18. a first transmission pipe; 19. a second conveying pipe; 20. a flow meter; 21. a temperature controller; 22. an anemometer; 23. a total solar radiation meter; 24. a scattered radiation meter; 25. a pressure sensor; 26. a temperature sensor; 27. and a sixth connecting pipe.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings, and as shown in fig. 1-2, a direct evaporation type solar energy jet refrigeration device comprises a rectangular frame 1, a solar energy heat collecting mechanism is arranged above the rectangular frame 1, and a jet refrigeration mechanism is arranged on one side of the solar energy heat collecting mechanism;
the solar heat collection mechanism comprises a solar heat collection generator shell 2 at the upper end of a rectangular frame 1, the solar heat collection generator shell 2 is fixedly connected with the rectangular frame 1, a heat absorption plate 3 is installed in the solar heat collection generator shell 2, a coil 4 is installed on the side surface of the heat absorption plate 3, anti-reflection glass 5 is installed on the side surface of the solar heat collection generator shell 2, and a heat preservation cotton shell 6 is installed on the inner side of the solar heat collection generator shell 2;
the jet refrigeration mechanism comprises an ejector 7 at the upper end of a rectangular frame 1, the ejector 7 is fixedly connected with the rectangular frame 1, an evaporator 8 is installed on one side of the rectangular frame 1, the evaporator 8 is fixedly connected with the rectangular frame 1, a condenser 9 is installed at the center of the rectangular frame 1, the condenser 9 is fixedly connected with the rectangular frame 1, a liquid receiver 10 is installed below the condenser 9, the liquid receiver 10 is fixedly connected with the rectangular frame 1, a circulating pump 11 is installed at the lower end of the rectangular frame 1, the circulating pump 11 is fixedly connected with the rectangular frame 1, and an expansion valve 12 is installed on one side of the lower end of the rectangular frame 1; a first connecting pipe 13 is arranged between the coil 4 and the ejector 7, a second connecting pipe 14 is arranged between the ejector 7 and the condenser 9, and a third connecting pipe 15 is arranged between the ejector 7 and the evaporator 8; a fourth connecting pipe 16 is arranged between the condenser 9 and the liquid receiver 10, a fifth connecting pipe 17 is arranged between the liquid receiver 10 and the expansion valve 12, and a sixth connecting pipe 27 is arranged between the expansion valve 12 and the evaporator 8; a first transmission pipe 18 is arranged between the liquid receiver 10 and the circulating pump 11, and a second transmission pipe 19 is arranged between the circulating pump 11 and the coil 4.
One end of the second transmission pipe 19 is provided with a flowmeter 20, and the other end of the second transmission pipe 19 is provided with a temperature controller 21.
One end of the solar heat collection generator shell 2 is provided with an anemometer 22, and the environment around the device is convenient to detect through the action of the anemometer 22.
The total solar radiation meter 23 is installed on one side of the solar heat collection generator shell 2, the scattering radiation meter 24 is installed on the other side of the solar heat collection generator shell 2, and the radiation quantity can be conveniently collected through the action of the total solar radiation meter 23 and the scattering radiation meter 24.
One end of the second transmission pipe 19 is provided with a pressure sensor 25, and one side of the pressure sensor 25 is provided with a temperature sensor 26.
In the present embodiment, in order to reduce the damage of the refrigerant to the ozone layer, the refrigerant is preferably an environment-friendly refrigerant R134a, and the refrigerant is located in each pipeline and each working device, such as the ejector 7, the evaporator 8, the condenser 9, and the liquid receiver 10; the thermodynamic cycle process of the device can be described as: the solar heat collection generator comprises a solar heat collection generator shell 2, a heat absorption plate 3 in the solar heat collection generator shell 2 converts solar energy into heat energy, an environment-friendly refrigerant R134a in a coil pipe 4 absorbs heat and is vaporized, a saturated steam is generated after the environment-friendly refrigerant R134a is vaporized and then enters an ejector 7 through the conveying of a first connecting pipe 13, the high-temperature high-pressure steam pressure in the ejector 7 is continuously reduced, a low-pressure environment is generated in a receiving chamber of the ejector 7, the saturated steam flows through the ejector 7, low pressure is generated near a nozzle of the ejector, and therefore refrigerant steam in an evaporator 8 is sucked into the ejector 7 through a third connecting pipe 15 and mixed;
the mixed gas is boosted through a diffusion section after the pressure of a mixing chamber of the ejector 7 is consistent, the mixed fluid ejected from the ejector 7 enters the condenser 9 through the second connecting pipe 14 for condensation and heat absorption, and the environment-friendly refrigerant R134a liquid from the condenser 9 enters the liquid storage tank 10 through the fourth connecting pipe 16; one part of liquid in the liquid storage tank 10 flows through an expansion valve 12 through a connecting pipe six 27 and is decompressed and then returns to the evaporator 8 for refrigeration cycle, and the other part of environment-friendly refrigerant R134a is pressurized by a circulating pump 11 and then enters a coil pipe 4 of the solar heat collection generator shell 2 for cycle heating;
the direct evaporation type solar flat plate solar heat collection generator unit consists of 8 square meters of snakelike copper pipes; the ejector 7 unit for ejection refrigeration is made of copper; in view of the difficulty in solving the working medium leakage problem, the device adopts a mechanical diaphragm pump; the condenser 9 adopts an air-cooled condenser; the evaporator 8 adopts a surface type air cooling area, and the air quantity can be adjusted; for convenience of adjustment, a manual copper expansion valve 12 is adopted; in order to ensure the stable operation of the system, a stainless steel liquid reservoir 10 is adopted, and a liquid level sight glass is arranged for conveniently observing the liquid level of the working medium in the tank; the data acquisition of the device can be carried out through the action of a plurality of pressure sensors 25 and temperature sensors 26.
Above-mentioned technical scheme has only embodied the utility model discloses technical scheme's preferred technical scheme, some changes that this technical field's technical personnel probably made to some parts wherein have all embodied the utility model discloses a principle belongs to within the protection scope of the utility model.
Claims (5)
1. A direct evaporation type solar jet refrigeration device comprises a rectangular frame (1), and is characterized in that a solar heat collection mechanism is arranged above the rectangular frame (1), and a jet refrigeration mechanism is arranged on one side of the solar heat collection mechanism;
the solar heat collection mechanism comprises a solar heat collection generator shell (2) at the upper end of a rectangular frame (1), the solar heat collection generator shell (2) is fixedly connected with the rectangular frame (1), a heat absorption plate (3) is installed in the solar heat collection generator shell (2), a coil pipe (4) is installed on the side surface of the heat absorption plate (3), antireflection glass (5) is installed on the side surface of the solar heat collection generator shell (2), and a heat preservation cotton shell (6) is installed on the inner side of the solar heat collection generator shell (2);
the jet refrigeration mechanism comprises an ejector (7) at the upper end of a rectangular frame (1), the ejector (7) is fixedly connected with the rectangular frame (1), an evaporator (8) is installed on one side of the rectangular frame (1), the evaporator (8) is fixedly connected with the rectangular frame (1), a condenser (9) is installed at the center of the rectangular frame (1), the condenser (9) is fixedly connected with the rectangular frame (1), a liquid reservoir (10) is installed below the condenser (9), the liquid reservoir (10) is fixedly connected with the rectangular frame (1), a circulating pump (11) is installed at the lower end of the rectangular frame (1), the circulating pump (11) is fixedly connected with the rectangular frame (1), and an expansion valve (12) is installed on one side of the lower end of the rectangular frame (1); a first connecting pipe (13) is arranged between the coil (4) and the ejector (7), a second connecting pipe (14) is arranged between the ejector (7) and the condenser (9), and a third connecting pipe (15) is arranged between the ejector (7) and the evaporator (8); a fourth connecting pipe (16) is arranged between the condenser (9) and the liquid receiver (10), a fifth connecting pipe (17) is arranged between the liquid receiver (10) and the expansion valve (12), and a sixth connecting pipe (27) is arranged between the expansion valve (12) and the evaporator (8); a first transmission pipe (18) is arranged between the liquid storage device (10) and the circulating pump (11), and a second transmission pipe (19) is arranged between the circulating pump (11) and the coil pipe (4).
2. The direct evaporative solar jet refrigeration device as claimed in claim 1, wherein one end of the second transmission pipe (19) is equipped with a flow meter (20), and the other end of the second transmission pipe (19) is equipped with a temperature controller (21).
3. A direct evaporative solar spray cooler as claimed in claim 1 wherein the solar collector generator housing (2) is fitted at one end with an anemometer (22).
4. A direct evaporative solar spray cooler according to claim 1, characterised in that the solar collector generator housing (2) is fitted on one side with a total solar radiation meter (23) and the solar collector generator housing (2) is fitted on the other side with a diffuse radiation meter (24).
5. The direct evaporative solar spray refrigerator as defined in claim 1, wherein one end of the second transmission pipe (19) is installed with a pressure sensor (25), and one side of the pressure sensor (25) is installed with a temperature sensor (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023176637.6U CN214065349U (en) | 2020-12-25 | 2020-12-25 | Direct evaporation type solar jet refrigeration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023176637.6U CN214065349U (en) | 2020-12-25 | 2020-12-25 | Direct evaporation type solar jet refrigeration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214065349U true CN214065349U (en) | 2021-08-27 |
Family
ID=77387369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023176637.6U Expired - Fee Related CN214065349U (en) | 2020-12-25 | 2020-12-25 | Direct evaporation type solar jet refrigeration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214065349U (en) |
-
2020
- 2020-12-25 CN CN202023176637.6U patent/CN214065349U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210827 |