CN111780294B - Air conditioning unit with spray cooling system - Google Patents
Air conditioning unit with spray cooling system Download PDFInfo
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- CN111780294B CN111780294B CN202010518552.7A CN202010518552A CN111780294B CN 111780294 B CN111780294 B CN 111780294B CN 202010518552 A CN202010518552 A CN 202010518552A CN 111780294 B CN111780294 B CN 111780294B
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- cooling
- spray
- liquid
- air conditioning
- condenser
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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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
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D5/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/01—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using means for separating solid materials from heat-exchange fluids, e.g. filters
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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
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/04—Details of condensers
- F25B2339/042—Details of condensers of pcm condensers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
Abstract
The invention belongs to the technical field of air conditioners, and particularly provides an air conditioning unit with a spray cooling system. The invention aims to solve the problem that the cooling effect of the spray cooling device of the existing air conditioning unit is affected due to poor spray effect. Therefore, the air conditioning unit comprises a spray cooling system and a refrigerant circulating system, wherein the refrigerant circulating system comprises a condenser, the spray cooling system comprises a transfusion pipeline and a spray component connected with the transfusion pipeline, a liquid accumulation cavity and a plurality of spray holes communicated with the liquid accumulation cavity are arranged on the spray component, the transfusion pipeline can convey cooling liquid to the liquid accumulation cavity, the spray water pressure is improved through arranging the liquid accumulation cavity, and the spray speed is improved through arranging the spray holes to be in a through hole structure with the middle part tightened and the two ends expanded, so that the cooling liquid can be sprayed to the surface of the condenser in an accelerating way, and therefore, the spray speed of the cooling liquid can be effectively improved, the spray effect of the cooling liquid can be effectively ensured, and the cooling effect of the cooling liquid can be effectively ensured.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly provides an air conditioning unit with a spray cooling system.
Background
The air conditioning unit is used as a device for realizing heat exchange through the refrigerant, and the conversion efficiency of the refrigerant during the operation is particularly important for the heat exchange efficiency of the unit. In order to effectively improve the condensation efficiency of the condenser, a plurality of large-scale air conditioning units are provided with a spray cooling device, and the spray cooling device can continuously spray cooling liquid to the surface of the condenser during the running of the unit, so that the effect of spray cooling is achieved, and the condensation efficiency of the condenser is further effectively improved. However, the existing spray cooling device is usually used for realizing spray cooling only by arranging a plurality of through hole structures on a water conveying pipeline, and the spray mode is difficult to achieve higher spray speed, so that the problems of limited spray range, poor cooling effect and the like are caused, and the problem of uneven water distribution is also easily caused, so that the spray cooling effect of the spray cooling device is influenced, and the problem that the condensation efficiency of a condenser is difficult to be greatly improved is caused.
Accordingly, there is a need in the art for a new air conditioning unit with a spray cooling system to address the above-described problems.
Disclosure of Invention
In order to solve the problems in the prior art, namely to solve the problem that the cooling effect is affected due to poor spraying effect of a spraying cooling device of the existing air conditioning unit, the invention provides a novel air conditioning unit with a spraying cooling system, the air conditioning unit further comprises a refrigerant circulating system, the refrigerant circulating system comprises a condenser, the spraying cooling system comprises a liquid conveying pipeline and a spraying component connected with the liquid conveying pipeline, a liquid accumulation cavity and a plurality of spraying holes communicated with the liquid accumulation cavity are formed in the spraying component, the liquid conveying pipeline can convey cooling liquid into the liquid accumulation cavity, and the spraying holes are through hole structures with the middle parts tightened and the two ends expanded, so that the cooling liquid in the liquid accumulation cavity can be sprayed to the surface of the condenser in an accelerating mode through the spraying holes.
In the preferable technical scheme of the air conditioning unit, the spraying hole comprises an inlet section, a contraction section, a throat and a diffusion section which are sequentially arranged along the flowing direction of the cooling liquid.
In the preferable technical scheme of the air conditioning unit, the aperture of the inlet section is four times that of the throat.
In the preferable technical scheme of the air conditioning unit, the aperture of the inlet section is larger than the maximum aperture of the diffusion section.
In the preferable technical scheme of the air conditioning unit, the length of the inlet section is one half of the length of the diffusion section.
In the preferable technical scheme of the air conditioning unit, the spraying member is further provided with a liquid inlet, and the infusion pipeline is communicated with the liquid accumulation cavity through the liquid inlet.
In the preferable technical scheme of the air conditioning unit, the liquid inlet hole is of a through hole structure with the middle part tightened and the two ends expanded.
In the preferable technical scheme of the air conditioning unit, the effusion cavity is cuboid.
In the preferable technical scheme of the air conditioning unit, the liquid inlet hole is arranged above the liquid accumulation cavity, and the plurality of spraying holes are arranged below the liquid accumulation cavity.
In the preferable technical scheme of the air conditioning unit, the plurality of spraying holes are distributed in a rectangular array.
It can be appreciated by those skilled in the art that in the technical scheme of the invention, the air conditioning unit comprises a spray cooling system and a refrigerant circulating system, the refrigerant circulating system comprises a condenser, the spray cooling system comprises a transfusion pipeline and a spray member connected with the transfusion pipeline, a liquid accumulation cavity and a plurality of spray holes communicated with the liquid accumulation cavity are arranged on the spray member, the transfusion pipeline can convey cooling liquid into the liquid accumulation cavity, and the spray holes are through hole structures with the middle part tightened and expanded at two ends. On one hand, the hydraulic pressure in the spraying component is increased by arranging the effusion cavity, so that the spraying speed of the cooling liquid is effectively increased; on the other hand, the spraying holes are arranged to be through hole structures with the middle part tightened and the two ends expanded, so that the spraying speed of the cooling liquid is further improved; according to the invention, through the arrangement, the cooling liquid in the liquid accumulation cavity can be sprayed to the surface of the condenser through the spraying holes in an accelerating way, so that the spraying speed of the cooling liquid can be effectively improved, the spraying effect of the cooling liquid can be effectively ensured, the cooling effect is effectively ensured, and the condensation efficiency of the condenser is effectively improved.
Further, the spray hole comprises an inlet section, a contraction section, a throat and a diffusion section which are sequentially arranged along the flowing direction of the cooling liquid, so that the speed increasing effect of the spray hole is effectively ensured.
Further, the aperture of the inlet section is four times of the aperture of the throat, so that the speed increasing effect of the cooling liquid at the throat is improved to the greatest extent.
Furthermore, the aperture of the inlet section is set to be larger than the maximum aperture of the diffusion section, so that the spraying range is considered, the spraying speed of the cooling liquid can be effectively ensured, and the spraying cooling effect is further improved to the greatest extent.
Further, the length of the inlet section is set to be one half of the length of the diffusion section, so that the spraying range is ensured, and meanwhile, the cooling liquid can be effectively ensured to keep a larger spraying speed.
Furthermore, the liquid inlet hole is additionally arranged, and the liquid inlet hole is arranged to be of a through hole structure with the middle part tightened and the two ends expanded, so that the speed of cooling liquid entering the liquid accumulation cavity is effectively improved, and the water pressure in the liquid accumulation cavity is further effectively improved.
Furthermore, the liquid inlet holes are arranged above the liquid accumulation cavity, and the spray holes are arranged below the liquid accumulation cavity, so that the self weight of the cooling liquid is effectively utilized to further improve the spray speed, and the spray range and the cooling effect are effectively ensured.
Further, the plurality of spraying holes are distributed in a rectangular array, so that the uniformity of liquid distribution is effectively ensured, and the spraying effect is effectively ensured.
Drawings
The preferred embodiments of the present invention will be described below by taking the case when the air conditioning unit is a multi-split air conditioning unit as an example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic overall construction of a first preferred embodiment of the present invention;
fig. 2 is a cross-sectional view of a spray member of a first preferred embodiment of the present invention;
fig. 3 is an enlarged partial view of a cross-sectional view of a spray member of a first preferred embodiment of the present invention;
fig. 4 is a bottom view of the spray member of the first preferred embodiment of the present invention;
FIG. 5 is a schematic overall construction of a second preferred embodiment of the present invention;
FIG. 6 is a top view of a spray member of a second preferred embodiment of the present invention;
FIG. 7 is a side cross-sectional view of a spray member of a second preferred embodiment of the present invention;
FIG. 8 is a schematic overall construction of a third preferred embodiment of the present invention;
fig. 9 is a schematic view of the internal structure of a shower member according to a third preferred embodiment of the present invention;
reference numerals:
10. an infusion pipeline;
11. a spray member; 111. a effusion chamber; 112. a liquid inlet hole; 1121. an inlet section of the liquid inlet hole; 1122. a liquid inlet hole contraction section; 1123. a liquid inlet throat; 1124. a liquid inlet hole diffusion section; 113. spraying holes; 1131. a spray hole inlet section; 1132. a spray hole shrinkage section; 1133. a spray hole throat; 1134. a spray hole diffusion section;
11', a spraying component; 111', drainage cavity; 112', a guide accelerating cavity; 113', a first guiding acceleration structure; 1131' and a vertical section; 1132' and an inclined section; 114', a second guiding acceleration structure; 115', a liquid inlet; 116', a spray port;
11 ", spray member; 111 ", body; 1111 ", nozzle; 1112 ", injection port; 1113 ", spray ports; 1114 ", a wicking chamber; 1115 ", mixing chamber; 1116 ", diffusion chamber;
12. a cooling member; 13. a filter member; 14. a liquid pump; 15. a liquid receiving member; 16. a shunt member; 17. a heat exchange plate;
20. a condenser; 21. a compressor; 22. a gas-liquid separator; 23. a four-way valve; 24. an evaporator; 25. an electronic expansion valve of the evaporator; 26. a first stop valve; 27. a refrigerant filter; 28. a second shut-off valve; 29. a condenser electronic expansion valve;
30. And a cooling fan.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention. Those skilled in the art will be able to make appropriate adjustments as needed to suit a particular application. For example, while the preferred embodiment is described in connection with a case where the air conditioning unit includes a plurality of evaporators, it is apparent that the air conditioning unit of the present invention may include only one evaporator. Such changes in the specific number of evaporators do not depart from the basic principles of the invention and fall within the scope of the invention.
It should be noted that, in the description of the present invention, terms such as "upper", "lower", "left", "right", "front", "rear", "inner", "outer", "center", and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
Example 1:
referring first to fig. 1, there is shown an overall structure of an air conditioning unit according to a first preferred embodiment of the present invention. As shown in fig. 1, the air conditioning unit of the present invention includes a spray cooling system and a refrigerant circulation system, wherein the refrigerant circulation system includes a refrigerant circulation line through which a refrigerant circulates and a state transition is achieved through the condenser 20 and the evaporator 24, and a condenser 20, a compressor 21, a gas-liquid separator 22, a four-way valve 23, and an evaporator 24 provided on the refrigerant circulation line, thereby achieving a heat exchange effect. The four evaporators 24 in the preferred embodiment are connected in parallel, and the four evaporators 24 are respectively disposed in the four indoor units, and an electronic expansion valve 25 for the evaporator is correspondingly disposed on a branch where each evaporator 24 is disposed, so as to respectively control the operation state of each evaporator 24. It should be noted that, the specific type and the specific number of the condenser 20 and the evaporator 24 are not limited in the present invention, and a technician may set the refrigerant circulation system according to the actual use requirement, so long as the refrigerant circulation system can realize heat exchange through the condenser 20 and the evaporator 24. In addition, a person skilled in the art can set the specific structure of the refrigerant circulation system according to the actual use requirement, as long as the refrigerant circulation system includes a refrigerant circulation pipeline and a condenser 20 disposed on the refrigerant circulation pipeline.
Further, as shown in fig. 1, in the preferred embodiment, the inlet of the gas-liquid separator 22 is connected to the s port of the four-way valve 23, the outlet of the gas-liquid separator 22 is connected to the inlet of the compressor 21, the outlet of the compressor 21 is connected to the d port of the four-way valve 23, a refrigerant filter 27 and a first stop valve 26 are sequentially disposed between the e port of the four-way valve 23 and the evaporator 24, the c port of the four-way valve 23 is connected to the condenser 20, a condenser electronic expansion valve 29 is disposed below the condenser 20 to control the operation state of the condenser 20, a second stop valve 28 is disposed between the condenser 20 and the evaporator 24, and the first stop valve 26 and the second stop valve 28 can control the on-off state of the refrigerant circulation pipeline to block the evaporator 24 when needed, thereby facilitating the installation or maintenance of technicians. It can be appreciated by those skilled in the art that the above arrangement is not limiting, and the skilled person can adjust the arrangement according to the actual use requirement; for example, the refrigerant circulation system may not include the four-way valve 23, that is, the refrigerant circulation system has only a single heat exchange mode and cannot switch the heat exchange mode by reversing through the four-way valve 23. Such changes in the specific structure do not depart from the basic principle of the invention and fall within the scope of the invention.
With continued reference to fig. 1, the spray cooling system includes an infusion line 10, a spray member 11, a cooling member 12, a filter member 13, a liquid pump 14, and a liquid receiving member 15; referring to the orientation of fig. 1, the upper end of the infusion line 10 is connected to the spray member 11 to deliver the cooling liquid into the spray member 11, the lower end of the infusion line 10 is connected to the liquid receiving member 15, and a filter member 13, a cooling member 12, and a liquid pump 14 are sequentially disposed between the spray member 11 and the liquid receiving member 15. In particular, the infusion line 10 is used to connect the various elements, so as to achieve the transfer of the cooling fluid; the spraying member 11 is disposed above the condenser 20, and is used for spraying cooling liquid to the surface of the condenser 20, so as to cool the condenser 20, and further improve the condensation efficiency of the condenser 20; the filtering component 13 is used for filtering the cooling liquid so as to effectively ensure the cleanliness of the cooling liquid sprayed on the condenser 20, thereby effectively avoiding the problem that the surface of the condenser 20 is easy to generate dirt, and further effectively ensuring that the surface of the condenser 20 can be always clean; the cooling component 12 is used for primarily cooling the refrigerant to be introduced into the condenser 20; the liquid pump 14 is used for providing power for the circulation of the cooling liquid; the liquid receiving component 15 is arranged below the condenser 20, and the cooling liquid sprayed onto the condenser 20 can fall into the liquid receiving component 15 after cooling is completed, and the liquid receiving component 15 is communicated with the infusion pipeline 10 so as to realize the recycling of the cooling liquid through the infusion pipeline 10. It should be noted that the present invention does not limit the type of the coolant, and the coolant is usually water, and the technician can set the type of the coolant according to the actual use requirement. In addition, the invention does not limit the specific type and the setting position of the filtering component 13, and the technician can set the filtering component according to the actual use requirement; for example, the filter member 13 may also be arranged between the cooling member 12 and the liquid pump 14, of course, the filter member 13 is preferably arranged between the spray member 11 and the cooling member 12 in order to better protect the condenser 20. Variations in these specific structures do not depart from the basic principles of the invention and are intended to be within the scope thereof.
In addition, the cooling fan 30 is further arranged above the condenser 20, and the cooling fan 30 can cool the condenser 20 in an air cooling mode so as to further improve the condensation efficiency of the condenser 20. It should be noted that, the present invention does not limit the type, specific setting position and number of the cooling fans 30, and the technician can set the cooling fans according to the actual use requirement.
Further, a part of the refrigerant circulation line between the four-way valve 23 and the condenser 20 is connected to the cooling member 12, so that the cooling liquid flowing through the cooling member 12 can perform a preliminary cooling treatment on the refrigerant to be introduced into the condenser 20. It should be noted that, the present invention does not limit the specific connection mode between the refrigerant circulation pipeline and the cooling component 12, and the connection mode may be either direct connection or indirect connection, and the technician may set the connection mode according to the actual use requirement, so long as the cooling liquid flowing through the cooling component 12 can cool the refrigerant. According to the invention, the refrigerant can be primarily cooled in the cooling component 12 and then enters the condenser 20, so that the temperature of the refrigerant entering the condenser 20 is effectively reduced, when the cooling liquid is sprayed to the surface of the condenser 20, the surface of the condenser 20 is not easy to generate corrosion phenomenon due to overlarge temperature difference, and the cooling effect can be effectively improved by the cooling mode of twice cooling (namely, by arranging the cooling component 12 and spraying cooling), so that the condensation efficiency of the condenser 20 is greatly improved, and the heat exchange efficiency of the refrigerant circulation system is effectively ensured.
As a preferred embodiment of the cooling member 12, the cooling member 12 is a plate heat exchanger (not shown in the drawings) comprising a plurality of heat exchanger plates connected in sequence and cold and hot runners provided on the plurality of heat exchanger plates. It should be noted that the present invention does not limit the specific connection manner between the heat exchange plates, and the technician can set the connection manner according to the actual use requirement, and the cold runner and the hot runner may be either tubular cavities directly formed on the heat exchange plates or pipes erected on the heat exchange plates. Of course, the cooling member may include only two pipelines adjacent to each other, and the cooling liquid and the cooling medium may circulate in one pipeline, so as to cool the cooling medium. In addition, the invention does not limit the specific structure of the plate heat exchanger, and technicians can set the plate heat exchanger according to actual use requirements; preferably, the plate heat exchanger is a detachable plate heat exchanger, so that a technician can determine the installation number of the heat exchange plates through the actual use requirement of the air conditioning unit, and further, the cooling effect is more effectively ensured. Further, in the preferred embodiment, the infusion line 10 and the refrigerant circulation line are disconnected at the cooling member 12 to form an inlet and an outlet, both ends of the cold runner are connected to the inlet and the outlet of the infusion line 10, respectively, so that the cooling liquid can circulate in the cold runner, and both ends of the hot runner are connected to the inlet and the outlet of the refrigerant circulation line, respectively, so that the cooling liquid flowing through the cold runner can cool the cooling liquid flowing through the hot runner. Of course, the hot runner may be a part of the refrigerant circulation line, i.e. a part of the refrigerant circulation line is directly mounted on the heat exchange plate, and the cold runner may be a part of the infusion line 10, i.e. a part of the infusion line 10 is directly mounted on the heat exchange plate. In addition, it should be noted that the specific shapes of the cold runner and the hot runner are not limited in the invention, and the technical personnel can set the cold runner and the hot runner according to the actual use requirements. Such changes in the shape of the specific structure do not depart from the basic principle of the invention and are intended to be within the scope of the invention.
With continued reference to fig. 1, as another preferred embodiment of the cooling member 12, as shown in fig. 1, a cooling chamber is provided in the cooling member 12, and both left and right ends of the cooling chamber are respectively communicated with the infusion line 10 so that the cooling liquid can flow through the cooling chamber. It should be noted that, the shape of the cooling cavity and the specific connection position of the cooling cavity and the infusion line 10 are not limited in the present invention, and the technician can set the cooling cavity according to the actual use requirement. A part of refrigerant circulation line between the four-way valve 23 and the condenser 20 is disposed in the cooling chamber so that the cooling liquid flowing through the cooling chamber can cool the refrigerant flowing through the part of refrigerant circulation line. In the preferred embodiment, the cooling member 12 achieves preliminary cooling by providing a cooling chamber, and when the refrigerant flows through the refrigerant circulation pipeline provided in the cooling chamber, the cooling liquid in the cooling chamber can cool the refrigerant flowing in the refrigerant circulation pipeline, thereby effectively reducing the temperature of the refrigerant when entering the condenser 20, and further effectively avoiding the problem that the surface of the condenser 20 is easily corroded.
Further, the cooling member 12 may be provided as a detachable two-part housing with a sealing ring provided therebetween, the two-part housing forming the cooling cavity therebetween when the two-part housing is connected in place; and four through hole structures are respectively arranged at the upper part, the lower part, the left part and the right part of the cooling cavity, the left through hole structure and the right through hole structure are used for being communicated with the infusion pipeline 10, and the upper through hole structure and the lower through hole structure are used for penetrating the refrigerant circulation pipeline so that part of the refrigerant circulation pipeline is accommodated in the cooling cavity. It should be noted that the arrangement is not limited, and a technician can set the arrangement according to the actual use requirement, so long as a part of the refrigerant circulation pipeline can be accommodated in the cooling cavity; preferably, the cooling member 12 is provided in a removable configuration for cleaning the cooling member 12.
Furthermore, in the preferred embodiment, the refrigerant circulation pipeline is disposed in the cooling cavity in a back-and-forth bending manner, so as to effectively increase the contact area between the refrigerant circulation pipeline and the cooling liquid, and further effectively improve the cooling effect. Of course, the above arrangement is only a preferred arrangement, and the technician can set the specific structure according to the actual requirement, for example, the refrigerant circulation pipeline can be arranged in the cooling cavity in a spiral manner. Further preferably, the cooling medium circulation pipeline is arranged in the cooling cavity in a left-right bending manner, and the flow direction of the cooling liquid in the cooling cavity is from left to right, that is, the bending direction of the cooling medium circulation pipeline is the same as or opposite to the flow direction of the cooling liquid in the cooling cavity, so that the cooling liquid in the cooling cavity can better cool the cooling medium in the cooling medium circulation pipeline, and the cooling effect is further effectively improved.
Furthermore, as a preferred embodiment, the cooling member 12 is further provided with a moving member (not shown in the drawing) capable of moving in the cooling chamber so as to control the liquid level in the cooling chamber, thereby changing the contact area between the refrigerant circulation line and the cooling liquid in the cooling chamber, and further effectively controlling the temperature of the refrigerant entering the condenser 20, so that the refrigerant can always enter the condenser 20 at an optimum temperature, and further, the condensation efficiency of the condenser 20 is improved to the greatest extent. It should be noted that, the present invention does not limit the specific structure of the moving member, and the technician can set the moving member according to the actual requirement, as long as the moving member can move in the cooling cavity to control the liquid level height in the cooling cavity; for example, the technician may control the liquid level height by providing the upper cover plate of the cooling member 12 as a piston structure with an intermediate opening to achieve the up-and-down movement. In addition, the fixed position of the moving member is determined by both the discharge temperature of the compressor 21 and the temperature of the cooling liquid flowing into the cooling chamber so that the refrigerant can always flow into the condenser 20 at a preset temperature, which can be determined according to the condensing efficiency of the refrigerant at different temperatures, in order to maximize the condensing efficiency of the condenser 20.
Referring next to fig. 2, a cross-sectional view of a spray member according to a first preferred embodiment of the present invention is shown. As shown in fig. 2, the spray member 11 is provided with a effusion chamber 111, a liquid inlet 112 communicated with the effusion chamber 111, and a plurality of spray holes 113, wherein the spray holes 113 are through hole structures with the middle part tightened and the two ends expanded. On one hand, the invention improves the water pressure in the spraying component 11 by arranging the effusion cavity 111 so as to effectively improve the spraying speed of the cooling liquid; on the other hand, the spray holes 113 are arranged to be through hole structures with the middle part tightened and the two ends expanded, so that the spray speed of the cooling liquid is further improved; according to the invention, through the arrangement, the cooling liquid in the liquid accumulation cavity 111 can be sprayed to the surface of the condenser 20 through the spraying holes 113 in an accelerating way, so that the spraying speed of the cooling liquid can be effectively improved, the spraying effect of the cooling liquid can be effectively ensured, the cooling effect is effectively ensured, and the condensation efficiency of the condenser 20 is effectively improved. It should be noted that, the specific shape of the effusion chamber 111 is not limited in the present invention, and a technician can set the effusion chamber according to the actual use requirement; preferably, the effusion cell 111 has a rectangular parallelepiped shape. Specifically, the effusion cavity 111 is communicated with the infusion pipeline 10 through the liquid inlet 112, and the liquid inlet 112 is arranged above the effusion cavity 111, and the plurality of spraying holes 113 are arranged below the effusion cavity 111, so that the self weight of the cooling liquid is effectively utilized to further improve the spraying speed, and the spraying range and the cooling effect are effectively ensured. In addition, it should be noted that the specific number and distribution of the spray holes 113 are not limited in the present invention, and the skilled person can set the spray holes according to the actual use requirement. Such changes in the specific structure do not depart from the basic principle of the invention and fall within the scope of the invention.
Referring next to fig. 3 and 4, wherein fig. 3 is an enlarged partial view of a cross-sectional view of a spray member of a first preferred embodiment of the present invention; fig. 4 is a bottom view of the shower member of the first preferred embodiment of the present invention. As shown in fig. 3 and 4, the plurality of spray holes 113 are distributed in a rectangular array at the bottom of the spray member 11 so as to effectively ensure the uniformity of the cloth liquid, thereby effectively ensuring the spray effect. The liquid inlet 112 is also provided with a through hole structure with the middle part tightened and the two ends expanded, so that the speed of the cooling liquid entering the liquid accumulation cavity 111 is effectively increased, and the water pressure in the liquid accumulation cavity 111 is further effectively increased. Specifically, the liquid inlet 112 includes a liquid inlet section 1121, a liquid inlet shrinkage section 1122, a liquid inlet throat 1123 and a liquid inlet diffusion section 1124 in order from top to bottom, so as to effectively increase the flow velocity of the cooling liquid when entering the liquid accumulation cavity 111; the spray holes 113 sequentially comprise a spray hole inlet section 1131, a spray hole contraction section 1132, a spray hole throat 1133 and a spray hole diffusion section 1134 from top to bottom so as to effectively improve the spray speed of the cooling liquid.
As a preferred embodiment, the aperture of the inlet section 1121 of the inlet orifice is four times the aperture of the throat 1123 of the inlet orifice, and the arrangement ratio can maximize the acceleration effect of the cooling liquid at the throat 1123 of the inlet orifice; the aperture of the inlet section 1121 of the liquid inlet hole is set to be larger than the maximum aperture of the diffusion section 1124 of the liquid inlet hole (i.e. the aperture of the diffusion section 1124 of the liquid inlet hole far away from the inlet section 1121 of the liquid inlet hole), and the size can ensure the injection speed of the cooling liquid effectively while taking into consideration the injection range; the length of the inlet section 1121 of the liquid inlet hole is set to be half of the length of the diffusion section 1124 of the liquid inlet hole, and the setting proportion can effectively ensure that the cooling liquid can keep a larger spraying speed while ensuring the spraying range, so that the water pressure is effectively improved.
In addition, the aperture of the spray hole inlet section 1131 is preferably set to be four times that of the spray hole throat 1133, and the setting proportion can improve the speed increasing effect of the cooling liquid at the spray hole throat 1133 to the greatest extent; the aperture of the spray hole inlet section 1131 is set to be larger than the maximum aperture of the spray hole diffusion section 1134 (namely, the aperture of one end of the spray hole diffusion section 1134 far away from the spray hole inlet section 1131), and the size setting can ensure the spray speed of the cooling liquid effectively while considering the spray range, so that the spray cooling effect is improved to the greatest extent; the length of the spray hole inlet section 1131 is set to be one half of the length of the spray hole diffusion section 1134, and the setting proportion can effectively ensure that the cooling liquid can keep a larger spray speed while ensuring the spray range, so that the spray cooling effect of the spray member 11 is improved to the greatest extent. Through the preferable setting mode, the spraying speed and the spraying range of the spraying component 11 can be effectively improved, so that the spraying cooling effect of the spraying component 11 is effectively ensured, and the condensation efficiency of the condenser 20 is further effectively ensured.
Example 2:
referring first to fig. 5 to 7, wherein fig. 5 is a schematic overall structure of a second preferred embodiment of the present invention; FIG. 6 is a top view of a spray member of a second preferred embodiment of the present invention; fig. 7 is a side cross-sectional view of a spray member of a second preferred embodiment of the present invention. It should be noted that, since the structure of the refrigerant circulation system in the preferred embodiment is the same as that in the first preferred embodiment, the description thereof will not be repeated here. As shown in fig. 5 to 7, the spray member 11 'is provided with a drainage cavity 111' and a guide accelerating cavity 112 'which are communicated with each other, wherein the drainage cavity 111' is communicated with the infusion pipeline 10 through a liquid inlet hole 115 ', a spray opening 116' and a first guide accelerating structure 113 'and a second guide accelerating structure 114' which are arranged at two sides of the spray opening 116 'are arranged in the guide accelerating cavity 112', and a gap is arranged between the first guide accelerating structure 113 'and the second guide accelerating structure 114' so as to accelerate the cooling liquid to pass through; the first and second guide accelerating structures 113 'and 114' are collectively disposed to accelerate the spraying of the cooling liquid in the drainage chamber 111 'to the surface of the condenser 20 through the spraying port 116'. It should be noted that, the specific structure of the guiding and accelerating structure is not limited in the invention, so long as the guiding and accelerating structure can play a role of guiding and accelerating; for example, although the guiding acceleration structure described in the present preferred embodiment includes the first guiding acceleration structure 113 ' and the second guiding acceleration structure 114 ', the guiding acceleration structure may obviously include only the first guiding acceleration structure 113 ', and the technician may set himself according to the actual use requirement.
As a preferred embodiment, the drainage cavity 111 'and the guiding acceleration cavity 112' are both cuboid, and the spraying component 11 'is provided with a plurality of liquid inlets 115'; the end of the infusion pipeline 10 is provided with a plurality of sub pipelines, each sub pipeline is correspondingly connected with one liquid inlet hole 115 ', so that a plurality of liquid inlet holes 115 ' can be used for simultaneously feeding liquid, and the liquid inlet holes 115 ' are communicated with the drainage cavity 111 ', so that the water pressure in the drainage cavity 111 ' can be effectively increased by the arrangement mode, and the initial flow speed of cooling liquid can be effectively increased. Of course, this arrangement is not limiting, and the skilled person may set the specific shape of the drainage chamber 111 'and the guiding acceleration chamber 112' according to the actual requirements. Preferably, the drainage chamber 111 ' is a flat rectangular parallelepiped shape, and the width of the rectangular parallelepiped shape is set to six times the height so that the coolant can obtain a sufficiently large initial velocity through the drainage chamber 111 ' to enter the guide acceleration chamber 112 '; it is further preferable that the bottom surface of the drainage chamber 111 'is provided in a shape having a low inlet and a low outlet so as to further increase the speed at which the cooling liquid enters the guide accelerating chamber 112'. Further, the bottom surfaces of the drainage cavity 111 'and the guide accelerating cavity 112' are flush, and the height of the drainage cavity 111 'is smaller than that of the guide accelerating cavity 112', so that the cooling liquid in the drainage cavity 111 'can be effectively accelerated after rushing into the guide accelerating cavity 112'. Through data modeling and multiple fluid flow simulation experiments, the height of the drainage cavity 111 ' is set to be one third of the height of the guide accelerating cavity 112 ', so that cooling liquid flowing out through the drainage cavity 111 ' can be fully accelerated in the guide accelerating cavity 112 ' and then sprayed out through the spraying opening 116 ', and further the spraying effect of the cooling liquid is effectively improved.
Referring next to fig. 7, a first guiding accelerating structure 113 'is disposed at a side close to the drainage cavity 111', and a second guiding accelerating structure 114 'is disposed at a side far from the drainage cavity 111'. In the present preferred embodiment, the first guiding acceleration structure 113 'and the second guiding acceleration structure 114' are both plate-like structures disposed laterally in a penetrating manner in the guiding acceleration cavity 112 ', wherein the second guiding acceleration structure 114' is disposed vertically; of course, this shape arrangement is not limiting and the skilled person may vary according to the actual application requirements, for example, the second guiding acceleration structure 114' may also be an elongated block-like structure. Specifically, the first guiding accelerating structure 113 'includes a vertical section 1131' and an inclined section 1132 ', referring to the orientation in fig. 7, the vertical section 1131' is formed to extend upward along the bottom surface of the guiding accelerating cavity 112 ', the inclined section 1132' is formed to extend obliquely downward along the top of the vertical section 1131 'toward one side (i.e., the right side) close to the second guiding accelerating structure 114', and the vertical section 1131 'is connected with the bottom surface of the drainage cavity 111' through an arc structure so as to effectively reduce the energy loss generated when the cooling liquid flows therethrough. Preferably, the inclined section 1132 'is inclined obliquely downward by an angle of 30 ° so as to simultaneously compromise the flow speed and the flow path, thereby effectively ensuring that the cooling liquid can be effectively accelerated through the inclined section 1132'. After flowing through the arc structure, the cooling liquid flowing in from the drainage cavity 111 'begins to rush up along the left side wall of the vertical section 1131', then, under the dual action of kinetic energy and gravitational potential energy, the cooling liquid begins to accelerate to rush down along the top wall of the inclined section 1132 ', and a large amount of cooling liquid flows into the vicinity of the notch, namely, a position near the right side of the second guiding acceleration structure 114', and when the notch is flushed out, the flow rate of the cooling liquid is further improved.
Further, the right end of the inclined section 1132 'extends beyond the vertical extension of the second guiding accelerating structure 114', so that the notch is formed below the inclined section 1132 ', that is, the coolant only extrudes with the right side wall of the second guiding accelerating structure 114' and the inner side wall of the guiding accelerating cavity 112 ', but flows out through the notch, so as to further ensure the accelerating effect of the guiding accelerating cavity 112'.
In addition, the spraying port 116 ' is provided with a flow guiding structure, the flow guiding structure is an inclined plane formed by downward reduction of the inner wall near the spraying port 116 ', and cooling liquid can be accelerated again when being sprayed out through the spraying port 116 ', namely, under the dual actions of pressure and gravity, the cooling liquid can be accelerated again at the spraying port 116 ', so that the spraying range and the spraying effect of the spraying component 11 ' are effectively ensured. The skilled person can understand that the specific structure of the flow guiding structure can be set by the skilled person according to the actual use requirement, and only the flow guiding acceleration effect can be realized; such changes in the specific structure do not depart from the basic principle of the invention and are intended to be within the scope of the invention.
Example 3:
reference is first made to fig. 8, which is a schematic overall structure of a third preferred embodiment of the present invention. It should be noted that, since the structure of the refrigerant circulation system in the present preferred embodiment is similar to that in the first preferred embodiment, the description thereof will be omitted. As shown in fig. 8, in the present preferred embodiment, the spray cooling system includes an infusion line 10, a spray member 11 ", a filter member 13, a liquid pump 14, and a liquid receiving member 15; referring to the orientation of fig. 8, the upper end of the infusion line 10 is connected to the upper end of the spray member 11 "so as to deliver the coolant into the spray member 11", the lower end of the spray member 11 "is provided with a spray port 1113", the lower end of the infusion line 10 is connected to the liquid receiving member 15, and a filter member 13 and a liquid pump 14 are further provided in this order between the spray member 11 "and the liquid receiving member 15. In particular, the infusion line 10 is used to connect the various elements, so as to achieve the transfer of the cooling fluid; the spraying member 11″ is disposed above the condenser 20, and is used for spraying the cooling liquid to the surface of the condenser 20, so as to cool the condenser 20, and further improve the condensation efficiency of the condenser 20; the filtering component 13 is used for filtering the cooling liquid so as to effectively ensure the cleanliness of the cooling liquid sprayed on the condenser 20, thereby effectively avoiding the problem that the surface of the condenser 20 is easy to generate dirt, and further effectively ensuring that the surface of the condenser 20 can always keep a clean state; the liquid pump 14 is used for providing power for the circulation of the cooling liquid; the liquid receiving component 15 is arranged below the condenser 20, and the cooling liquid sprayed to the surface of the condenser 20 can fall into the liquid receiving component 15 after cooling is completed, and the liquid receiving component 15 is communicated with the infusion pipeline 10 so as to realize the recycling of the cooling liquid through the infusion pipeline 10. It should be noted that the present invention does not limit the type of the coolant, and the coolant is usually water, and the technician can set the type of the coolant according to the actual use requirement. In addition, the invention does not limit the specific type and the setting position of the filtering member 13, and the technician can set the filtering member according to the actual use requirement; for example, the filter member 13 may also be arranged between the liquid pump 14 and the liquid receiving member 15, of course, the filter member 13 is preferably arranged between the spray member 11 "and the liquid pump 14 in order to better protect the condenser 20. Variations in these specific structures do not depart from the basic principles of the invention and are intended to be within the scope thereof.
Referring next to fig. 9, there is shown a schematic view of the internal structure of a shower member according to a third preferred embodiment of the present invention. As shown in fig. 9, the spray member 11 "includes a main body 111" and a nozzle 1111 ", an injection port 1112", and a spray port 1113 "provided on the main body 111", a liquid suction chamber 1114 ", a mixing chamber 1115", and a diffusion chamber 1116 "are provided in this order on the main body 111" in the flow direction of the cooling liquid (i.e., from top to bottom). Wherein at least a portion of nozzle 1111 "is disposed in pumping chamber 1114" such that cooling fluid entering through nozzle 1111 "can be directly injected into pumping chamber 1114". The flow dividing member 16 is provided upstream of the spray member 11 ", the infusion line 10 is divided into three infusion branches by the flow dividing member 16, and the three infusion branches are respectively connected to the nozzle 1111" and the injection ports 1112 "provided on both sides of the nozzle 1111" so as to deliver the cooling liquid to the nozzle 1111 "and the injection ports 1112", and the spray port 1113 "is provided at the lower port of the main body 111", i.e., the end of the diffusion chamber 1116 "remote from the mixing chamber 1115".
It will be appreciated by those skilled in the art that although the spray cooling system described in the preferred embodiment employs the flow dividing member 16 to achieve flow division, this is not limiting, and the cooling fluid may obviously be introduced directly above the spray member 11 "and then flow divided by itself through the nozzle 1111" and the injection port 1112 ", and the present invention is not limited in any way to the specific type of flow dividing member 16, and the skilled person may set itself according to the actual use requirement, as long as the infusion line 10 can achieve flow division through the flow dividing member 16.
In the present preferred embodiment, the nozzle 1111 "and the injection port 1112" are both disposed at the top of the main body 111 ", the two injection ports 1112" are respectively disposed at both sides of the nozzle 1111 "and the central axes of the two injection ports 1112" are both parallel to the central axis of the nozzle 1111 "so as to effectively avoid unnecessary collision between the cooling liquids to consume energy, thereby effectively ensuring the spraying speed of the cooling liquids. It should be noted that, although the spraying member 11 "in the present preferred embodiment includes two injection ports 1112" and the two injection ports 1112 "are disposed at two ends of the nozzle 1111" respectively, this is obviously only a preferred embodiment, and it is obvious to those skilled in the art that the number, the location and the distribution of the injection ports 1112 "may be set according to actual use requirements, for example, the number of the injection ports 1112" may be four, and the injection ports 1112 "may be disposed on the side wall of the liquid suction cavity 1114". Such changes in the specific structure do not depart from the basic principle of the invention and are intended to be within the scope of the invention.
With continued reference to fig. 9, in the present preferred embodiment, the nozzle 1111 "is configured as a through hole structure with two expanded ends tightened in the middle, and such a through hole structure with two expanded ends tightened in the middle can effectively increase the spraying speed of the cooling liquid, so that the flow rate of the cooling liquid entering through the nozzle 1111" is greater than the flow rate of the cooling liquid entering through the injection port 1112 ", thereby effectively improving the injection effect and further effectively increasing the spraying speed of the cooling liquid. Further, the central axes of nozzle 1111 ", suction chamber 1114", mixing chamber 1115 "and diffusion chamber 1116" coincide such that the entire coolant passage within spray member 11 "is vertical; the arrangement mode can better utilize gravitational potential energy to accelerate, and can enable the general flow direction of the cooling liquid not to be changed too much, so that energy loss is effectively reduced, and the cooling liquid is effectively ensured to be sprayed out at a larger speed.
Furthermore, as a preferred embodiment, the suction chamber 1114 "includes a vertical section that facilitates the introduction of the cooling fluid and a constricted section that facilitates enhanced ejection. The bore diameter is the same throughout the mixing cavity 1115 ", i.e., a cylindrical cavity, so that the cooling fluid entering through the nozzle 1111" and the cooling fluid entering through the injection port 1112 "can be thoroughly mixed in the mixing cavity 1115" without being affected by other factors. The diffusion cavity 1116 "is in a diffusion shape so that the accelerated cooling liquid can be diffused through the diffusion cavity 1116", so that the cooling liquid can be sprayed to a larger range, and the spraying effect of the cooling liquid is effectively improved.
Further, a part of the refrigerant circulation line between the four-way valve 23 and the condenser 20 is provided in the suction chamber 1114 "so that the cooling liquid in the suction chamber 1114" can exchange heat with the refrigerant in the refrigerant circulation line. Through the arrangement, on one hand, after heat exchange, the temperature of the cooling liquid in the liquid suction cavity 1114″ is increased, namely, the internal energy of the cooling liquid is changed, so that the injection phenomenon is more facilitated, the spraying speed of the cooling liquid is further improved, and the spraying range and the spraying effect of the cooling liquid are further effectively ensured; on the other hand, after heat exchange, the cooling liquid in the liquid suction cavity 1114″ can primarily cool the refrigerant and then enter the condenser 20, so that the temperature of the refrigerant entering the condenser 20 is effectively reduced, when the cooling liquid is sprayed to the surface of the condenser 20, the surface of the condenser 20 is not easy to generate corrosion phenomenon due to overlarge temperature difference, and the cooling effect can be effectively improved by the cooling mode of twice cooling (namely, the cooling mode of cooling through the cooling liquid in the liquid suction cavity 1114″ and the cooling mode of spraying), so that the condensation efficiency of the condenser 20 is greatly improved, and the heat exchange efficiency of the refrigerant circulation system is effectively ensured.
As a preferred embodiment, a plurality of heat exchanger plates 17 are provided in the suction chamber 1114″; preferably, the heat exchange plate 17 is made of metal. Each heat exchange plate 17 is disposed radially, and a plurality of heat exchange plates 17 are arranged radially around the central axis of the liquid suction chamber 1114 ", i.e., circumferentially disposed outside the nozzle 1111″ in a radial arrangement. The heat exchange plate 17 is provided with a plurality of mounting holes, and the refrigerant circulation pipeline is erected in the plurality of mounting holes in a surrounding mode, so that the refrigerant circulation pipeline can exchange heat better through the heat exchange plate 17. It should be noted that the arrangement of the heat exchange plate 17 is only a preferred embodiment, and a technician may also set the arrangement according to the actual requirement, for example, the refrigerant circulation line may also be directly arranged in the liquid suction cavity 1114″. In addition, the above arrangement is only a preferred embodiment, and can be adjusted by a person skilled in the art according to the actual requirements. Preferably, the heat exchange plates 17 are arranged near the injection port 1112 ", so that the cooling liquid entering through the injection port 1112" can exchange heat with the cooling medium in the cooling medium circulation pipeline as soon as possible, and further, the injection effect is better ensured.
In addition, it should be noted that the present invention does not limit the manner in which the refrigerant circulation line is placed into the liquid suction chamber 1114 ", and the technician can set the refrigerant circulation line according to the actual use requirement. As an embodiment, the main body 111″ may be provided as upper and lower detachable parts, and a sealing ring is provided between the upper and lower main bodies, and when the upper and lower main bodies are connected in place, the left and right sides thereof are respectively provided with a through hole structure, which can accommodate the condensation circulation line. When the main body 111 "is installed, the heat exchange plate 17 and the refrigerant circulation pipeline are installed in place, then the heat exchange plate 17 and the refrigerant circulation pipeline erected on the heat exchange plate 17 are placed between the upper main body and the lower main body, and then the upper main body and the lower main body are connected, under the condition that the main body 111" is installed in place, the heat exchange plate 17 and the refrigerant circulation pipeline erected on the heat exchange plate 17 are accommodated in the liquid suction cavity 1114 ", and the refrigerant circulation pipeline can be connected with the outside through the through hole structure so as to effectively ensure the normal operation of the refrigerant circulation system. Of course, this is not limitative, and the skilled person can set the placement mode according to the actual use requirement.
Thus far, the technical solution of the present invention has been described in connection with the accompanying drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will fall within the scope of the present invention.
Claims (7)
1. An air conditioning unit with a spray cooling system is characterized in that the air conditioning unit also comprises a refrigerant circulation system, the refrigerant circulation system comprises a condenser,
the spray cooling system comprises a transfusion pipeline and a spray component connected with the transfusion pipeline, the spray component is provided with a hydrops cavity and a plurality of spray holes communicated with the hydrops cavity, the transfusion pipeline can convey cooling liquid to the hydrops cavity,
the spraying holes are through hole structures with the middle part tightened and the two ends expanded, so that the cooling liquid in the effusion cavity can be sprayed to the surface of the condenser through the spraying holes in an accelerating way;
the spraying holes comprise an inlet section, a contraction section, a throat and a diffusion section which are sequentially arranged along the flowing direction of the cooling liquid;
The spraying component is also provided with a liquid inlet hole, and the transfusion pipeline is communicated with the effusion cavity through the liquid inlet hole;
the liquid inlet hole is a through hole structure with the middle part tightened and the two ends expanded.
2. An air conditioning assembly according to claim 1, wherein the aperture of the inlet section is four times the aperture of the throat.
3. An air conditioning assembly according to claim 1, wherein the aperture of the inlet section is greater than the maximum aperture of the diffuser section.
4. An air conditioning assembly according to claim 3, wherein the length of the inlet section is one half the length of the diffuser section.
5. The air conditioning unit according to claim 1, wherein the effusion cell is rectangular parallelepiped.
6. The air conditioning unit according to claim 5, wherein the liquid inlet is disposed above the liquid accumulation chamber and the plurality of spray holes are disposed below the liquid accumulation chamber.
7. The air conditioning assembly of claim 6, wherein the plurality of spray holes are distributed in a rectangular array.
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