CN106949651A - A kind of low temperature full-liquid type refrigeration system - Google Patents
A kind of low temperature full-liquid type refrigeration system Download PDFInfo
- Publication number
- CN106949651A CN106949651A CN201710263153.9A CN201710263153A CN106949651A CN 106949651 A CN106949651 A CN 106949651A CN 201710263153 A CN201710263153 A CN 201710263153A CN 106949651 A CN106949651 A CN 106949651A
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- China
- Prior art keywords
- pipe
- refrigerant
- mouth
- separator
- steam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 76
- 238000005057 refrigeration Methods 0.000 title claims abstract description 36
- 239000003507 refrigerant Substances 0.000 claims abstract description 86
- 238000000926 separation method Methods 0.000 claims abstract description 21
- 239000010726 refrigerant oil Substances 0.000 claims description 13
- 239000000523 sample Substances 0.000 claims description 5
- 239000003921 oil Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000004904 shortening Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 235000019197 fats Nutrition 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 235000015173 baked goods and baking mixes Nutrition 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 235000019198 oils Nutrition 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000010775 animal oil Substances 0.000 description 1
- 235000014121 butter Nutrition 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
Classifications
-
- 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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/005—Compression machines, plants or systems with non-reversible cycle of the single unit type
-
- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
-
- 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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
-
- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- 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
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
- F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
Abstract
The invention provides a kind of low temperature full-liquid type refrigeration system, including compressor set, evaporator, evaporator outer cover connects heat tracing medium cylinder provided with heat tracing medium cylinder, compressor set provided with refrigerant output pipe, refrigerant return line and back-steam pipeline, wherein：Vapor-liquid separation is provided between refrigerant output pipe and back-steam pipeline, the vapour-liquid of back-steam pipeline is separated by vapor-liquid separation.The present invention provides a kind of simple in construction, the low temperature full-liquid type refrigeration system of good refrigeration effect and refrigeration low cost, realizes vapour, liquid separation, the purpose of circularly cooling.
Description
Technical field
The present invention relates to the refrigeration system of shortening production equipment, more particularly to a kind of low temperature full-liquid type refrigeration system.
Background technology
Shortening is also referred to as shortening and produced with vegetable oil or animal oil raw material, the dynamic plant after decolourizing, being deodorized
Thing oil, is generally used for the solid fat of bakery product raw material, is suitable for the requirement of bakery product.Fat hardening degree is a variety of more
Sample, the hardened fat of any fusing point is can obtain with the hardening process of selectivity.The shortening of hydrogenated processing not only increases anti-
Oxidisability and heat endurance, the used time can also improve the smell, color and luster and flavour of grease, so as to expand the application model of grease
Enclose.
The existing manufacturing procedure of shortening need to through heat circulating system in chilling system, axle, nitrogen inlet system, mediate system,
Refrigeration system, pressure plunger pump group into system through proportioning device direct packaging in quantitative package casing.Due to by packaging
Casing is quantitatively molded, and being molded into can cause and air contact and mix, cause shortening oil quality it is difficult to ensure that, wherein air can shadow
Sound the preservation of butter.The shortening of FCL shaping simultaneously, which is inconvenient to take care of, to be used.The refrigeration structure of current refrigeration system is deposited
In structural issue, the shortcomings of causing refrigeration bad and be lost big increases processing cost.Therefore, current skill how is solved
These problems in art, as people's technical problem urgently to be resolved hurrily.
The content of the invention
The invention solves the problems that technical problem is to provide, one kind is simple in construction, and the low temperature of good refrigeration effect and refrigeration low cost is expired
Liquid formula refrigeration system, realizes vapour, liquid separation, the purpose of circularly cooling.
In order to solve the above technical problems, a kind of low temperature full-liquid type refrigeration system of the present invention, including compressor set, evaporation
Device, evaporator outer cover is provided with refrigerant output pipe, refrigerant return line and back-steam pipeline provided with heat tracing medium cylinder, compressor set
Heat tracing medium cylinder is connected, wherein：Vapor-liquid separation is provided between refrigerant output pipe and back-steam pipeline, passes through vapor-liquid separation system
The vapour-liquid of system separation back-steam pipeline.
The present invention is due to using above-mentioned technical proposal, and compressor set conveys refrigerant to heat tracing medium by refrigerant output pipe
Compression is delivered to by refrigerant return line and back-steam pipeline after refrigerant heat exchange in cylinder reduction evaporator temperature, heat tracing medium cylinder
Unit, is delivered to heat tracing medium cylinder by refrigerant output pipe after condensing again, makes refrigerant circulation cooling；Refrigerant output pipe and
Vapor-liquid separation is provided between back-steam pipeline, the purpose of vapor-liquid separation is realized by vapor-liquid separation.Refrigerant is through vapour-liquid point
From rear connection refrigerant output pipe and back-steam pipeline respectively, realize and fill part using vapor-liquid separation step-down and the mesh of circulation temperature lowering
's.
A kind of above-mentioned low temperature full-liquid type refrigeration system, compressor set provided with refrigerant output the mouth of pipe, the refrigerant oil return mouth of pipe and
Back-steam inputs the mouth of pipe, and refrigerant output pipe, refrigerant return line and back-steam pipeline are connected respectively.By refrigerant output pipe, cold
Matchmaker's return line and back-steam pipeline connection heat tracing medium cylinder, realize conveying refrigerant and reclaim refrigerant oil return, the purpose of back-steam.
A kind of above-mentioned low temperature full-liquid type refrigeration system, heat tracing medium cylinder bottom inputs the mouth of pipe and refrigerant oil return provided with refrigerant
Export the mouth of pipe, top and export the mouth of pipe provided with back-steam, refrigerant output pipe, refrigerant return line and back-steam pipeline are connected respectively.It is logical
Cross refrigerant output pipe, refrigerant return line and back-steam pipeline connection compressor set, realization receive refrigerant and conveying refrigerant oil return,
The purpose of back-steam.
A kind of above-mentioned low temperature full-liquid type refrigeration system, vapor-liquid separation includes vapour liquid separator and liquid level visor, vapour
The both sides on liquid/gas separator top input the mouth of pipe provided with separator back-steam and the separator back-steam output mouth of pipe, middle part are provided with separator pressure
The power regulation mouth of pipe, bottom are provided with the separator Liquid level mouth of pipe, liquid level visor provided with the separator refrigerant output mouth of pipe, side middle part
Top is provided with the visor refrigerant input mouth of pipe, bottom provided with the visor refrigerant output mouth of pipe, sideways provided with visor pressure regulation tube mouthful.It is real
The purpose of existing vapor-liquid separation connection refrigerant output pipe and back-steam pipeline, makes back-steam and refrigerant vapor-liquid separation.
A kind of above-mentioned low temperature full-liquid type refrigeration system, refrigerant output pipe is sequentially connected the refrigerant output mouth of pipe, separator
The Liquid level mouth of pipe, the separator refrigerant output mouth of pipe, the visor refrigerant input mouth of pipe, the visor refrigerant output mouth of pipe and refrigerant input pipe
Mouthful.
A kind of above-mentioned low temperature full-liquid type refrigeration system, refrigerant return line two ends connect the refrigerant oil return output mouth of pipe respectively
With the refrigerant oil return mouth of pipe.
A kind of above-mentioned low temperature full-liquid type refrigeration system, back-steam pipeline is sequentially connected the back-steam output mouth of pipe, separator back-steam
Input the mouth of pipe, the separator back-steam output mouth of pipe and the back-steam input mouth of pipe.
A kind of above-mentioned low temperature full-liquid type refrigeration system, the separator pressure regulation mouth of pipe is connected with pressure regulation tube road, presses
Power regulation pipeline is connected with pressure transmitter, and pressure transmitter is connected with converter, time of the connection separator back-steam output mouth of pipe
Control valve is respectively equipped with the refrigerant output pipe of vapor pipeline and the connection separator Liquid level mouth of pipe, converter is sequentially connected two
Individual control valve and visor pressure regulation tube mouthful.Pressure transmitter is connected with the purpose that converter realizes compressed gas；Converter connects
Take back vapor pipeline, control valve realizes the purpose of regulation pressure and liquid level respectively on refrigerant output pipe.
A kind of above-mentioned low temperature full-liquid type refrigeration system, heat tracing medium cylinder top is connected with temp probe.Detect that heat tracing is situated between
The temperature of matter cylinder top refrigerant.
A kind of above-mentioned low temperature full-liquid type refrigeration system, compressor set can be connected in parallel multiple evaporators.Realize compressor
The technique effect that group is cooled down simultaneously to several evaporators.
Brief description of the drawings
The present invention is described in further detail below in conjunction with the embodiment in accompanying drawing, but not constituted to the present invention's
Any limitation.
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of vapor-liquid separation of the present invention.
Embodiment
As shown in Figure 1 to Figure 2, a kind of low temperature full-liquid type refrigeration system of the invention, including compressor set 1, evaporator 2,
The outer cover of evaporator 2 is provided with heat tracing medium cylinder 21, and compressor set 1 is provided with refrigerant output pipe, refrigerant return line and return tube
Road connection heat tracing medium cylinder 21, wherein：Vapor-liquid separation 3 is provided between refrigerant output pipe and back-steam pipeline, passes through vapour-liquid
Piece-rate system 3 separates the vapour-liquid of back-steam pipeline.
Compressor set 1 is connected cold respectively provided with the refrigerant output mouth of pipe 11, the refrigerant oil return mouth of pipe 12 and the back-steam input mouth of pipe 13
Matchmaker's output pipe, refrigerant return line and back-steam pipeline.
Heat tracing medium 21 bottoms of cylinder input the mouth of pipe 211 provided with refrigerant and the refrigerant oil return output mouth of pipe 212, top are provided with back-steam
The mouth of pipe 213 is exported, refrigerant output pipe, refrigerant return line and back-steam pipeline are connected respectively.
Vapor-liquid separation 3 includes vapour liquid separator 31 and liquid level visor 32, and the both sides on the top of vapour liquid separator 31 are provided with
Separator back-steam input the mouth of pipe 311 and separator back-steam output the mouth of pipe 312, middle part provided with separator pressure regulation the mouth of pipe 313, under
Portion is provided with the separator Liquid level mouth of pipe 315, the top of liquid level visor 32 provided with the separator refrigerant output mouth of pipe 314, side middle part
Provided with the visor refrigerant input mouth of pipe 321, bottom provided with the visor refrigerant output mouth of pipe 322, sideways provided with visor pressure regulation tube mouthful
323。
It is defeated that refrigerant output pipe is sequentially connected the refrigerant output mouth of pipe 11, the separator Liquid level mouth of pipe 315, separator refrigerant
Outlet spout 314, the visor refrigerant input mouth of pipe 321, the visor refrigerant output mouth of pipe 322 and the refrigerant input mouth of pipe 211.
Refrigerant return line two ends connect the refrigerant oil return output mouth of pipe 212 and the refrigerant oil return mouth of pipe 12 respectively.
Back-steam pipeline is sequentially connected the back-steam output mouth of pipe 213, the separator back-steam input mouth of pipe 311, the output of separator back-steam
The mouth of pipe 312 and the back-steam input mouth of pipe 13.
The separator pressure regulation mouth of pipe 313 is connected with pressure regulation tube road, and pressure regulation tube road is connected with pressure transmitter
33, pressure transmitter 33 is connected with converter 34, the back-steam pipeline and connection separator of the connection separator back-steam output mouth of pipe 312
Control valve 35 is respectively equipped with the refrigerant output pipe of the Liquid level mouth of pipe 315, converter 34 is sequentially connected two control valves 35
With visor pressure regulation tube mouthful 323.
21 tops of heat tracing medium cylinder are connected with temp probe 22.
Compressor set 1 can be connected in parallel multiple evaporators 2.
Concrete operations of the present invention are as follows：The material that need to cool is conveyed into evaporator 2 from material inlet A, compressor set 1
Refrigerant is delivered in heat tracing medium cylinder 21 by refrigerant output pipe evaporator 2 is cooled through row, by cold after refrigerant heat exchange
Matchmaker's return line and back-steam pipeline are transmitted back to compressor set 1, refrigerant output pipe and back-steam pipeline connection vapour liquid separator 31, make
Back-steam and refrigerant vapor-liquid separation, compressor set 1 are transmitted back to heat tracing medium cylinder 21 and recycled after refrigerant is condensed again.
In summary, such as specification and diagramatic content actual sample is made and through test is used for multiple times in the present invention, from making
Seen with the effect of test, the provable present invention can reach its desired purpose, and practical value is unquestionable.It is provided above
Embodiment only illustrates the present invention for convenient, not makees any formal limitation, any affiliated technology neck to the present invention
Have usually intellectual in domain, if not departing from the range of the present invention carries technical characteristic, utilize disclosed technology
The Equivalent embodiments for locally changing or modifying made by content, and without departing from the technical characteristic content of the present invention, still fall within
In the range of the technology of the present invention feature.
Claims (10)
1. a kind of low temperature full-liquid type refrigeration system, including compressor set (1), evaporator (2), evaporator (2) outer cover are provided with companion
Thermal medium cylinder (21), compressor set (1) is provided with refrigerant output pipe, refrigerant return line and back-steam pipeline connection heat tracing medium cylinder
(21), it is characterised in that：Vapor-liquid separation (3) is provided between refrigerant output pipe and back-steam pipeline, passes through vapor-liquid separation system
System (3) separates the vapour-liquid of back-steam pipeline.
2. a kind of low temperature full-liquid type refrigeration system according to claim 1, it is characterised in that：Compressor set (1) is provided with cold
Matchmaker's output mouth of pipe (11), the refrigerant oil return mouth of pipe (12) and the back-steam input mouth of pipe (13), connect refrigerant output pipe, refrigerant and return respectively
Oil pipe line and back-steam pipeline.
3. a kind of low temperature full-liquid type refrigeration system according to claim 1, it is characterised in that：Heat tracing medium cylinder (21) bottom
Provided with the refrigerant input mouth of pipe (211) and the refrigerant oil return output mouth of pipe (212), top provided with the back-steam output mouth of pipe (213), connect respectively
Connect refrigerant output pipe, refrigerant return line and back-steam pipeline.
4. a kind of low temperature full-liquid type refrigeration system according to claim 1, it is characterised in that：Vapor-liquid separation (3) is wrapped
Vapour liquid separator (31) and liquid level visor (32) are included, the both sides on vapour liquid separator (31) top input the mouth of pipe provided with separator back-steam
(311) mouth of pipe (313), bottom are adjusted provided with separator pressure and is provided with separator with the separator back-steam output mouth of pipe (312), middle part
The refrigerant output mouth of pipe (314), side middle part are provided with the separator Liquid level mouth of pipe (315), and liquid level visor (32) top is provided with and regarded
The mirror refrigerant input mouth of pipe (321), bottom are provided with the visor refrigerant output mouth of pipe (322), sideways provided with visor pressure regulation tube mouthful
(323)。
5. a kind of low temperature full-liquid type refrigeration system according to Claims 2 or 3 or 4, it is characterised in that：Refrigerant output pipe
It is sequentially connected the refrigerant output mouth of pipe (11), the separator Liquid level mouth of pipe (315), the separator refrigerant output mouth of pipe (314), visor
The refrigerant input mouth of pipe (321), the visor refrigerant output mouth of pipe (322) and the refrigerant input mouth of pipe (211).
6. a kind of low temperature full-liquid type refrigeration system according to Claims 2 or 3, it is characterised in that：Refrigerant return line two
The oil return of connection refrigerant exports the mouth of pipe (212) and the refrigerant oil return mouth of pipe (12) respectively at end.
7. a kind of low temperature full-liquid type refrigeration system according to Claims 2 or 3 or 4, it is characterised in that：Back-steam pipeline is successively
Connect back-steam efferent duct mouthful (213), the separator back-steam input mouth of pipe (311), the separator back-steam output mouth of pipe (312) and back-steam defeated
Enter the mouth of pipe (13).
8. a kind of low temperature full-liquid type refrigeration system according to Claims 2 or 3 or 4, it is characterised in that：Separator pressure is adjusted
The section mouth of pipe (313) is connected with pressure regulation tube road, and pressure regulation tube road is connected with pressure transmitter (33), pressure transmitter (33)
It is connected with converter (34), the back-steam pipeline and connection separator Liquid level pipe of the connection separator back-steam output mouth of pipe (312)
Be respectively equipped with control valve (35) on the refrigerant output pipe of mouthful (315), converter (34) be sequentially connected two control valves (35) and
Visor pressure regulation tube mouthful (323).
9. a kind of low temperature full-liquid type refrigeration system according to claim 1, it is characterised in that：Heat tracing medium cylinder (21) top
It is connected with temp probe (22).
10. a kind of low temperature full-liquid type refrigeration system according to claim 1, it is characterised in that：Compressor set (1) can be in parallel
Connect multiple evaporators (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710263153.9A CN106949651A (en) | 2017-04-17 | 2017-04-17 | A kind of low temperature full-liquid type refrigeration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710263153.9A CN106949651A (en) | 2017-04-17 | 2017-04-17 | A kind of low temperature full-liquid type refrigeration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106949651A true CN106949651A (en) | 2017-07-14 |
Family
ID=59477752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710263153.9A Pending CN106949651A (en) | 2017-04-17 | 2017-04-17 | A kind of low temperature full-liquid type refrigeration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106949651A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001027455A (en) * | 1999-05-13 | 2001-01-30 | Denso Corp | Heat pump air conditioner |
| US6846390B1 (en) * | 2002-09-09 | 2005-01-25 | David Bruce Bishkin | Methods for using hydrophobic liquid to compress steam |
| CN102466376A (en) * | 2010-11-18 | 2012-05-23 | 海尔集团公司 | Screw-type refrigerating system and control method thereof |
| CN103175325A (en) * | 2013-03-26 | 2013-06-26 | 东莞市鑫焘机械有限公司 | Hydraulic-filling-type water chilling unit |
| CN106440538A (en) * | 2016-10-21 | 2017-02-22 | 珠海格力电器股份有限公司 | Flooded evaporator oil return system and water-cooled air conditioning unit adopting flooded evaporator oil return system |
| CN206683263U (en) * | 2017-04-17 | 2017-11-28 | 肇庆市嘉溢食品机械装备有限公司 | Low temperature full-liquid type refrigeration system |
-
2017
- 2017-04-17 CN CN201710263153.9A patent/CN106949651A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001027455A (en) * | 1999-05-13 | 2001-01-30 | Denso Corp | Heat pump air conditioner |
| US6846390B1 (en) * | 2002-09-09 | 2005-01-25 | David Bruce Bishkin | Methods for using hydrophobic liquid to compress steam |
| CN102466376A (en) * | 2010-11-18 | 2012-05-23 | 海尔集团公司 | Screw-type refrigerating system and control method thereof |
| CN103175325A (en) * | 2013-03-26 | 2013-06-26 | 东莞市鑫焘机械有限公司 | Hydraulic-filling-type water chilling unit |
| CN106440538A (en) * | 2016-10-21 | 2017-02-22 | 珠海格力电器股份有限公司 | Flooded evaporator oil return system and water-cooled air conditioning unit adopting flooded evaporator oil return system |
| CN206683263U (en) * | 2017-04-17 | 2017-11-28 | 肇庆市嘉溢食品机械装备有限公司 | Low temperature full-liquid type refrigeration system |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170714 |
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