CN202792709U - Spraying type evaporator - Google Patents
Spraying type evaporator Download PDFInfo
- Publication number
- CN202792709U CN202792709U CN2012202761569U CN201220276156U CN202792709U CN 202792709 U CN202792709 U CN 202792709U CN 2012202761569 U CN2012202761569 U CN 2012202761569U CN 201220276156 U CN201220276156 U CN 201220276156U CN 202792709 U CN202792709 U CN 202792709U
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- spray
- evaporator
- evaporator shell
- heat exchanger
- exchanger tube
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Abstract
A spraying type evaporator comprises a sealing plate, an end plate, a liquid level controller device, an evaporator shell, two liquid-state cooling agent inlets, a gas-state cooling agent outlet, an evaporating pressure sensor, a safety valve, a partition plate, a bottom oil return port, a heat exchanging pipe and a spraying device. According to the spraying type evaporator, compared with a flooded evaporator, cooling agent charging quantity of a refrigerating system is little, influences of a cooling agent liquid column do not exist, and oil return of the system is convenient; and compared with a dry type evaporator, distribution of cooling agents is even, pressure loss in the evaporating process is little, water side washing is convenient, and boiling heat transferring efficiency of the cooling agents outside the heat exchanging pipe is high.
Description
Technical field
The utility model relates to a kind of water source heat pump evaporator, is specially a kind of spray-type evaporator.
Background technology
Traditional water resource heat pump evaporating heat exchanger is mainly take dry evaporator and flooded evaporator as main.And dry evaporator, when its cold-producing medium flowed in heat exchanger tube, flow of refrigerant had several flow processs usually, and is provided with several deflection plates in the outside of cylindrical shell heat-transfer pipe, and it is moving to make water repeatedly skim over the heat exchanger tube manifold flow.For above-mentioned reasons, a plurality of flow processs of cold-producing medium produce hydrops at the end cap turning of evaporimeter as processing bad meeting, thereby make the refrigerant liquid maldistribution that enters next flow process, affect heat-transfer effect; The setting of some deflection plates that the cylindrical shell heat exchanger tube is outer, because the gap of 1-2mm is arranged between deflection plate outer rim and the housing, with heat exchanger tube the gap of 1-2mm is arranged also, the leakage of water facts have proved owing to can cause coefficient of heat transfer decline 20-30%, total heat transfer coefficient reduces 5-15%, and water flows in evaporimeter and can easily be attached to not easy cleaning of heat exchange pipe external surface by the generation incrustation scale.The heat exchanger tube of flooded evaporator is immersed in the liquid refrigerant, cold-producing medium evaporates boiling heat transfer outside heat exchanger tube, make the efficient of whole unit higher, but air velocity is low during owing to the evaporation of evaporimeter inner refrigerant, thereby entering into refrigeration oil in the evaporimeter, naturally to get back to compressor very difficult, and the charging amount of cold-producing medium is far more than dry evaporator.When the refrigeration system evaporating temperature was lower than 0 ℃, water easy freezing in the pipe burst heat exchanger tube.Be subject to simultaneously the impact of cold-producing medium fluid column height, the evaporating temperature of cylinder body bottom is higher, reduces heat transfer temperature difference, and its evaporimeter bottom can amass oil, thus reliable oil return measure must be arranged, otherwise can affect the safe operation of whole system.
The utility model content
The technical problem that the utility model solves is to provide a kind of spray-type evaporator, to solve the shortcoming in the above-mentioned background technology.
The technical problem that the utility model solves realizes by the following technical solutions:
A kind of spray-type evaporator, comprise shrouding, end plate, the fluid level controller device, evaporator shell, two liquid refrigerant entrances, the gaseous refrigerant outlet, the evaporating pressure sensor, safety valve, dividing plate, the bottom oil return mouth, heat exchanger tube and spray equipment, two described liquid refrigerant entrances, the gaseous refrigerant outlet, evaporating pressure sensor and safety valve are installed in the top of described evaporator shell, described bottom oil return mouth is arranged on the below of described evaporator shell, the two ends of described evaporator shell are equipped with described end plate, the right-hand member of described evaporator shell also is provided with described shrouding, left end also is provided with described dividing plate, described heat exchanger tube and spray equipment are installed in the described evaporator shell, described heat exchanger tube and form firm connect of end plate with expanded joint, described fluid level controller device are installed on the evaporator shell outside.
Described spray equipment comprises two cold-producing medium feed tubes, a playpipe and an airtight even spray thrower, described two refrigerant liquid inlet tubes, a playpipe and an airtight even spray thrower are combined into an integral body, and the bottom of described even spray thrower is distributed with the uniform spray apertures of some spacings.
Left end at described evaporator shell is provided with water inlet pipe and outlet pipe, also is provided with water flow switch on the described outlet pipe.
Beneficial effect:
The utility model is compared with flooded evaporator, and the refrigerant charge of refrigeration system is little, does not have the impact of cold-producing medium fluid column, and system oil return is convenient; Compare with dry evaporator, the cold-producing medium distributed uniform, the evaporation process pressure loss is little, water side easy to clean, cold-producing medium boiling heat transfer efficient outside heat exchanger tube is high.
Description of drawings
Fig. 1 is a kind of schematic diagram of spray-type evaporator.
Fig. 2 is a kind of spray-type evaporator left view figure.
Fig. 3 is a kind of spray-type evaporator M-M face schematic diagram.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
A kind of spray-type evaporator, comprise shrouding 1, end plate 2, fluid level controller device 3, evaporator shell 4, two liquid refrigerant entrances 5, gaseous refrigerant outlet 6, evaporating pressure sensor 8, safety valve 9, dividing plate 12, bottom oil return mouth 13, heat exchanger tube 18 and spray equipment 16, two described liquid refrigerant entrances 5, gaseous refrigerant outlet 6, evaporating pressure sensor 8 and safety valve 9 are installed in the top of described evaporator shell 4, described bottom oil return mouth 13 is arranged on the below of described evaporator shell 4, the two ends of described evaporator shell 4 are equipped with described end plate 2, the right-hand member of described evaporator shell 4 also is provided with described shrouding 1, left end also is provided with described dividing plate 12, described heat exchanger tube 18 and spray equipment 16 are installed in the described evaporator shell 4, described heat exchanger tube 18 and form firm connect of end plate 2 with expanded joint, described fluid level controller device 3 is installed on evaporator shell 4 outsides.
Described spray equipment 16 comprises two cold-producing medium feed tubes, a playpipe 14 and an airtight even spray thrower 15, described two cold-producing medium feed tubes, a playpipe 14 and an airtight even spray thrower 15 are combined into an integral body, and the bottom of described even spray thrower 15 is distributed with the uniform spray apertures 17 of some spacings.
Described spray equipment 16 comprises two cold-producing medium feed tubes, a playpipe and an airtight even spray thrower 15, described two refrigerant liquid inlet tubes, a playpipe and an airtight even spray thrower 15 are combined into an integral body, and the bottom of described even spray thrower 15 is distributed with the uniform spray apertures 17 of some spacings.
Left end at described evaporator shell 4 is provided with water inlet pipe 19 and outlet pipe 20, is equipped with cooling-water temperature sensor 11 on described water inlet pipe 19 and the outlet pipe 20, also is provided with water flow switch 10 on the described outlet pipe 20.
During enforcement:
A kind of spray-type evaporator comprises the spray equipment 16, playpipe 14 of shrouding 1, end plate 2, fluid level controller device 3, evaporator shell 4, liquid refrigerant entrance 5, gaseous refrigerant outlet 6, evaporating pressure sensor 8, safety valve 9, dividing plate 12, bottom oil return mouth 13, heat exchanger tube 18, delivery port 19, water inlet 20, evaporimeter inside, airtight even spray thrower 15, spray apertures 17.Shrouding 1 and end plate 2, dividing plate 12 and end plate 2 are with bolt-connection, and be detachable, is conducive to clean heat exchanger tube 18.Heat exchanger tube 18 and form firm connect of end plate 2 with expanded joint.
Refrigerant liquid is entered playpipe 14, is fan shape and is mapped to airtight even spray thrower 15 by the liquid refrigerant entrance 5 of spray-type evaporator, by even spray thrower 15 bottom spray holes 17, under the Action of Gravity Field of himself and under the effect of suction pressure of compressor, spray forms uniform liquid film to heat exchanger tube 18; Because refrigerant liquid gathers the restriction that is subjected to thickness of liquid film on the pipe face of upper strata, unnecessary liquid successively forms uniform liquid film together with successively down dripping and flow on lower floor's pipe face at the gas behind the ebullition, gasification on the pipe face of upper strata, until all evaporation is complete.Air conditioning water carries out heat exchange from the evaporimeter water inlet through heat-exchanging tube bundle and the cold-producing medium that heat exchanger tube 18 forms, and freezing temperature is reduced be transported to air-conditioned room from the evaporimeter delivery port.
When a kind of spray-type evaporator bottom refrigeration oil gathers when a certain amount of, refrigeration oil turns back to compressor from the oil return opening 13 of its bottom by injection oil return device, and the protection compressor is oil starvation not.
At a kind of spray-type evaporator evaporating pressure sensor 8, safety valve 9, water flow switch 10, evaporimeter Inlet and outlet water temperature sensor 11 are installed, during water shortage, water flow switch 10 sends signal, protection system; Evaporator water is crossed when hanging down, and temperature sensor 11 sends signal, protection system; When evaporating pressure was too high or too low, evaporating pressure sensor 8 sent signal, protection system; Guarantee that by these elements utility model can safe and stable operation.
Adjust the aperture of controlling electric expansion valve in the refrigeration system by fluid level controller device 3, with the refrigerant amount in the control spray equipment 16, prevent simultaneously a kind of spray-type evaporator bottom delay refrigerant liquid, guarantee its best heat transfer efficiency.
In above-described embodiment, a kind of spray-type evaporator is single system usefulness, and also dual system and multisystem are used certainly.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model; the technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. spray-type evaporator, comprise shrouding, end plate, the fluid level controller device, evaporator shell, two liquid refrigerant entrances, the gaseous refrigerant outlet, the evaporating pressure sensor, safety valve, dividing plate, the bottom oil return mouth, heat exchanger tube and spray equipment, it is characterized in that, two described liquid refrigerant entrances, the gaseous refrigerant outlet, evaporating pressure sensor and safety valve are installed in the top of described evaporator shell, described bottom oil return mouth is arranged on the below of described evaporator shell, the two ends of described evaporator shell are equipped with described end plate, the right-hand member of described evaporator shell also is provided with described shrouding, left end also is provided with described dividing plate, described heat exchanger tube and spray equipment are installed in the described evaporator shell, described heat exchanger tube and form firm connect of end plate with expanded joint, described fluid level controller device are installed on the evaporator shell outside.
2. described a kind of spray-type evaporator according to claim 1, it is characterized in that, described spray equipment comprises two cold-producing medium feed tubes, a playpipe and an airtight even spray thrower, described two refrigerant liquid feed tubes, a playpipe and an airtight even spray thrower are combined into an integral body, and the bottom of described even spray thrower is distributed with the uniform spray apertures of some spacings.
3. described a kind of spray-type evaporator according to claim 1 is characterized in that, is provided with water inlet pipe and outlet pipe at the left end of described evaporator shell, also is provided with water flow switch on the described outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202761569U CN202792709U (en) | 2012-06-13 | 2012-06-13 | Spraying type evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202761569U CN202792709U (en) | 2012-06-13 | 2012-06-13 | Spraying type evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202792709U true CN202792709U (en) | 2013-03-13 |
Family
ID=47819961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202761569U Expired - Fee Related CN202792709U (en) | 2012-06-13 | 2012-06-13 | Spraying type evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202792709U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791647A (en) * | 2014-02-28 | 2014-05-14 | 湖南运达节能科技有限公司 | Single pump type lithium bromide absorption unit |
| CN104633978A (en) * | 2014-12-22 | 2015-05-20 | 珠海格力电器股份有限公司 | Evaporator, refrigerating unit and air conditioner |
| CN106325334A (en) * | 2016-11-22 | 2017-01-11 | 北京瑞尔腾普科技有限公司 | Temperature control system, environmental simulation system and reliability test equipment |
| CN112611131A (en) * | 2020-12-14 | 2021-04-06 | 陈李 | Dry evaporator of water chilling unit |
| CN113899226A (en) * | 2021-10-22 | 2022-01-07 | 广东美的暖通设备有限公司 | Heat exchange device, refrigerant adjusting device and control method |
| CN115468336A (en) * | 2022-09-07 | 2022-12-13 | 南通美吉乐制冷设备有限公司 | High-efficiency temperature-control water chilling unit turbulent flow single-system tube shell dry evaporator |
-
2012
- 2012-06-13 CN CN2012202761569U patent/CN202792709U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791647A (en) * | 2014-02-28 | 2014-05-14 | 湖南运达节能科技有限公司 | Single pump type lithium bromide absorption unit |
| CN104633978A (en) * | 2014-12-22 | 2015-05-20 | 珠海格力电器股份有限公司 | Evaporator, refrigerating unit and air conditioner |
| CN104633978B (en) * | 2014-12-22 | 2017-03-29 | 珠海格力电器股份有限公司 | Vaporizer, refrigeration unit and air-conditioner |
| CN106325334A (en) * | 2016-11-22 | 2017-01-11 | 北京瑞尔腾普科技有限公司 | Temperature control system, environmental simulation system and reliability test equipment |
| CN112611131A (en) * | 2020-12-14 | 2021-04-06 | 陈李 | Dry evaporator of water chilling unit |
| CN112611131B (en) * | 2020-12-14 | 2022-09-27 | 安徽美乐柯制冷空调设备有限公司 | Dry evaporator of water chilling unit |
| CN113899226A (en) * | 2021-10-22 | 2022-01-07 | 广东美的暖通设备有限公司 | Heat exchange device, refrigerant adjusting device and control method |
| CN115468336A (en) * | 2022-09-07 | 2022-12-13 | 南通美吉乐制冷设备有限公司 | High-efficiency temperature-control water chilling unit turbulent flow single-system tube shell dry evaporator |
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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: 20130313 Termination date: 20150613 |
|
| EXPY | Termination of patent right or utility model |