CN109737629A - A kind of efficient low refrigerant charge free convection cooling grid of injecting type - Google Patents
A kind of efficient low refrigerant charge free convection cooling grid of injecting type Download PDFInfo
- Publication number
- CN109737629A CN109737629A CN201910139883.7A CN201910139883A CN109737629A CN 109737629 A CN109737629 A CN 109737629A CN 201910139883 A CN201910139883 A CN 201910139883A CN 109737629 A CN109737629 A CN 109737629A
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- Prior art keywords
- inner chamber
- injector
- chamber body
- outer chamber
- liquid feeding
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- 239000003507 refrigerant Substances 0.000 title claims abstract description 28
- 238000001816 cooling Methods 0.000 title claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 239000000758 substrate Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 abstract description 5
- 238000001704 evaporation Methods 0.000 description 7
- 230000008020 evaporation Effects 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a kind of efficient low refrigerant charge free convection cooling grids of injecting type.The present invention includes inner chamber body and outer chamber, and inner chamber body is placed in outer chamber, and return gas channel slot is formed between inner chamber body and outer chamber；Inner chamber body is surrounded by internal cavity plate, and injector is uniformly installed in inner chamber body bottom, and injector is inversed taper platform shape, the lower end of each injector and return gas channel slot connection；Outer chamber has substrate and outer cover plate to surround, the bottom surface of outer chamber is substrate, base lower surface is connect with multi-disc fin, outer cover plate is cavity rectangular channel, the end face center and return line connection of outer chamber, one end of liquid feeding pipeline passes through return line side tube wall and enters in return line, the other end and inner chamber body upper surface connection of liquid feeding pipeline.Evaporator of the present invention realizes the branching process of refrigerant using injector, and structure is simple, effectively reduces the charging amount of refrigerant.
Description
Technical field
The present invention relates to refrigerating plant research fields, and in particular to a kind of efficient low refrigerant charge of injecting type is naturally right
Flow cooling grid.
Background technique
The broken ring of ozone layer is on the rise with the problem of global warming, improves own efficiency and the reduction of refrigerating plant
The refrigerant charge of refrigeration system is that the hot spot in the field is also technological difficulties.From the perspective of economy and safety,
There is still a need for a large amount of research investments for the heat exchange equipment of high efficiency and low refrigerant charge.So far, in cold storage refrigerating system
In component, evaporator is the main heat exchange equipment in Warehouse System, can be divided into two major classes according to its application field, one kind is cold
Blower (finned evaporator), one kind are heat exchange evaporation comb.Heat exchange evaporation comb is widely used in low temperature food product storing field.Currently, city
There are still following problems for heat exchange evaporation comb in: (1) refrigerant charge is big, poor safety performance, especially ammonia system, big charging amount
There are major safety risks for heat exchange evaporation comb；(2) each branch liquid separation is uneven, and refrigerating capacity is caused to decline, tubing waste；(3) volume
It is huge, inconvenience installation.In conclusion there is an urgent need to design a kind of efficient low refrigerant charge natural convection comb evaporation
Device, it is above-mentioned to solve the problems, such as.
Summary of the invention
The technical problems to be solved by the present invention are: providing a kind of efficient low refrigerant charge free convection row of injecting type
Heat exchange efficiency can be improved while reducing refrigerant charge in pipe evaporator, saves material, reduces the investment payback time.
In order to solve the above technical problems, the invention adopts the following technical scheme:
A kind of efficient low refrigerant charge natural convection cooling grid of injecting type, which is characterized in that including inner cavity
Body and outer chamber, inner chamber body are placed in outer chamber, and return gas channel slot is formed between inner chamber body and outer chamber；Inner chamber body is by internal cavity
Plate surrounds, and injector is uniformly installed in inner chamber body bottom, and injector is inversed taper platform shape, the lower end of each injector and return gas channel
Slot connection；Outer chamber has substrate and outer cover plate to surround, and the bottom surface of outer chamber is substrate, and base lower surface is connect with multi-disc fin,
Outer cover plate is cavity rectangular channel, and one end of the end face center and return line connection of outer chamber, liquid feeding pipeline passes through return line
Side tube wall enters in return line, the other end and inner chamber body upper surface connection of liquid feeding pipeline.
The liquid feeding end diameter of the injector is big, and the hydrojet end diameter of injector is small, and liquid feeding end connects with hydrojet end chamfering
It connects.
Compared with prior art, the beneficial effects of the present invention are:
(1) the invention patent compares existing cooling grid, and the evaporator realizes point of refrigerant using injector
Stream process, structure is simple, effectively reduces the charging amount of refrigerant.
(2) the invention patent compares existing cooling grid, and the refrigerant of the evaporator is ejected into base through injector
The refrigerant of plate upper surface is distributed in symmetrical liquid drop, improves its heat transfer effect.
(3) the invention patent compares existing calandria evaporator, and the evaporator carries out nature using fin and air
Cooling capacity transmitting is realized in convection current, reduces the cost of evaporator.
Detailed description of the invention
Fig. 1 is structure of the invention D-D sectional view；
Fig. 2 is structure of the invention A-A sectional view；
Fig. 3 is structure of the invention B-B sectional view；
Fig. 4 is structure of the invention C-C sectional view.
Specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, the efficient low refrigerant charge natural convection row of a kind of liquid-spraying type of the present invention
Pipe evaporator, the evaporator include liquid feeding pipeline 1, internal cavity plate 2, injector 3, substrate 4, outer cover plate 5, return line 6, rib
Piece 7, return gas channel slot 8；Including inner chamber body and outer chamber, inner chamber body is placed in outer chamber, is formed between inner chamber body and outer chamber
Return gas channel slot；Inner chamber body is surrounded by internal cavity plate, and injector is uniformly installed in inner chamber body bottom, and injector is inversed taper platform shape,
The lower end of each injector and return gas channel slot connection；Outer chamber has substrate and outer cover plate to surround, and the bottom surface of outer chamber is substrate,
Base lower surface is connect with multi-disc fin, and outer cover plate is cavity rectangular channel, and the end face center and return line connection of outer chamber supply
One end of liquid pipeline passes through return line side tube wall and enters in return line, the other end of liquid feeding pipeline and inner chamber body upper surface
Connection.
The liquid feeding pipeline 1 of the evaporator and the inner chamber body upper surface connection surrounded by internal cavity plate 2, as shown in Figure 1,
Refrigerant after throttling set throttles is flowed into inner chamber body by liquid feeding pipeline；The inner chamber body bottom is uniformly installed by injection
Device, injector are the platform of falling vertebra shape, i.e. injector liquid feeding end diameter is big, and hydrojet end diameter is small, liquid feeding end and hydrojet end chamfering
Connection, the bottom surface of outer chamber are substrate, and the top surface of outer chamber is outer cover plate, the end face center and return line connection of outer chamber,
Liquid feeding pipeline 1 passes through 6 side tube wall of return line and enters in return line 6, as shown in Figure 2；The intracorporal refrigerant in inner cavity
It is ejected into through injector on the upper surface of substrate 4, realizes refrigerant branching process；The refrigerant of 4 upper surface of substrate passes through
Substrate 4 exchanges heat with fin 7 with the external world, realizes refrigerant evaporation process；There are one between the internal cavity plate and outer cover plate
Fixed gap is connect with return line 6, as shown in figure 3, the refrigerant after the evaporation of 4 upper surface of substrate flows into return gas channel slot 8, is converged
Collection is in return-air gap 8, as shown in Figure 1, the refrigerant vapour in the return gas channel slot 8 flows into return line 6；The return-air
Refrigerant vapour cooled via return air pipeline in pipeline 6 flows out evaporator.
The lower surface of the substrate 4 is connect with fin 7, as shown in Figure 1；The evaporator is natural by fin 7 and air
Heat convection realizes the transmitting of cooling capacity.
The injector 3 is evenly arranged in inner cavity plate bottom surface, as shown in Figure 2；It can be realized by decompression speedup uniformly
Droplet-like shunts.
The above is only a preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (2)
1. a kind of efficient low refrigerant charge free convection cooling grid of injecting type, which is characterized in that including inner chamber body and
Outer chamber, inner chamber body are placed in outer chamber, and return gas channel slot is formed between inner chamber body and outer chamber；Inner chamber body is enclosed by internal cavity plate
At injector is uniformly installed in inner chamber body bottom, and injector is inversed taper platform shape, and the lower end of each injector and return gas channel slot join
It is logical；Outer chamber has substrate and outer cover plate to surround, and the bottom surface of outer chamber is substrate, and base lower surface is connect with multi-disc fin, outer cover
Plate is cavity rectangular channel, and one end of the end face center and return line connection of outer chamber, liquid feeding pipeline passes through return line side
Tube wall enters in return line, the other end and inner chamber body upper surface connection of liquid feeding pipeline.
2. the efficient low refrigerant charge free convection cooling grid of injecting type according to claim 1, feature exist
In the liquid feeding end diameter of the injector is big, and the hydrojet end diameter of injector is small, and liquid feeding end is connect with hydrojet end with chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910139883.7A CN109737629A (en) | 2019-02-26 | 2019-02-26 | A kind of efficient low refrigerant charge free convection cooling grid of injecting type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910139883.7A CN109737629A (en) | 2019-02-26 | 2019-02-26 | A kind of efficient low refrigerant charge free convection cooling grid of injecting type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109737629A true CN109737629A (en) | 2019-05-10 |
Family
ID=66368323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910139883.7A Pending CN109737629A (en) | 2019-02-26 | 2019-02-26 | A kind of efficient low refrigerant charge free convection cooling grid of injecting type |
Country Status (1)
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|---|---|
| CN (1) | CN109737629A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679633A (en) * | 2012-04-27 | 2012-09-19 | 镇江新梦溪能源科技有限公司 | Grid evaporator |
| CN103017420A (en) * | 2012-12-26 | 2013-04-03 | 上海环球制冷设备有限公司 | Liquid-separating uniform-distributing device of trickling film-falling type evaporator and using method thereof |
| CN104457040A (en) * | 2014-11-13 | 2015-03-25 | 广东申菱空调设备有限公司 | Spray-type falling film evaporator and liquid level control method thereof |
| CN105091417A (en) * | 2014-04-24 | 2015-11-25 | 珠海格力电器股份有限公司 | Uniform distribution device and falling-film evaporator as well as water chilling unit |
| CN109373638A (en) * | 2018-12-21 | 2019-02-22 | 天津商业大学 | A kind of cold storage refrigerating system low refrigerant charge natural convection air-cooled evaporator |
| CN209672632U (en) * | 2019-02-26 | 2019-11-22 | 天津商业大学 | A kind of efficient low refrigerant charge free convection cooling grid of injecting type |
-
2019
- 2019-02-26 CN CN201910139883.7A patent/CN109737629A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679633A (en) * | 2012-04-27 | 2012-09-19 | 镇江新梦溪能源科技有限公司 | Grid evaporator |
| CN103017420A (en) * | 2012-12-26 | 2013-04-03 | 上海环球制冷设备有限公司 | Liquid-separating uniform-distributing device of trickling film-falling type evaporator and using method thereof |
| CN105091417A (en) * | 2014-04-24 | 2015-11-25 | 珠海格力电器股份有限公司 | Uniform distribution device and falling-film evaporator as well as water chilling unit |
| CN104457040A (en) * | 2014-11-13 | 2015-03-25 | 广东申菱空调设备有限公司 | Spray-type falling film evaporator and liquid level control method thereof |
| CN109373638A (en) * | 2018-12-21 | 2019-02-22 | 天津商业大学 | A kind of cold storage refrigerating system low refrigerant charge natural convection air-cooled evaporator |
| CN209672632U (en) * | 2019-02-26 | 2019-11-22 | 天津商业大学 | A kind of efficient low refrigerant charge free convection cooling grid of injecting type |
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