CN209042800U - A kind of full-liquid type refrigeration system - Google Patents
A kind of full-liquid type refrigeration system Download PDFInfo
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- CN209042800U CN209042800U CN201821878867.7U CN201821878867U CN209042800U CN 209042800 U CN209042800 U CN 209042800U CN 201821878867 U CN201821878867 U CN 201821878867U CN 209042800 U CN209042800 U CN 209042800U
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- oil return
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- refrigeration system
- type refrigeration
- liquid type
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- 239000007788 liquid Substances 0.000 title claims abstract description 67
- 238000005057 refrigeration Methods 0.000 title claims abstract description 46
- 239000003507 refrigerant Substances 0.000 claims abstract description 49
- 230000001105 regulatory effect Effects 0.000 claims description 13
- 239000011521 glass Substances 0.000 claims description 9
- 230000008676 import Effects 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 230000006378 damage Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 66
- 239000000047 product Substances 0.000 description 9
- 238000001704 evaporation Methods 0.000 description 7
- 230000008020 evaporation Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000010687 lubricating oil Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000009835 boiling Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000346 nonvolatile oil Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
Abstract
The utility model discloses a kind of full-liquid type refrigeration systems, including compressor, condenser, expansion valve and the evaporator being sequentially communicated by the first pipeline, evaporator is flooded evaporator, it includes multiple first oil return openings for storing the first shell of refrigerant, being opened in first shell, is set to the intracorporal more heat exchanger tubes of first shell, wherein at least one heat exchanger tube is exposed to the ullage of refrigerant, the full-liquid type refrigeration system further includes regenerator, and regenerator is connected by the second pipeline with the first oil return opening and compressor.A kind of full-liquid type refrigeration system of the utility model enables refrigerant to be entirely located in heat exchange area, avoids oil return opening and be sampled as a large amount of freon liquid and damage compressor by the way that at least one heat exchanger tube to be exposed to the ullage of refrigerant；Oil return operates the case where stopping in the case that the setting of multiple oil return openings avoids equipment swinging.
Description
Technical field
The utility model relates to a kind of refrigeration systems, and in particular to a kind of full-liquid type refrigeration system.
Background technique
Refrigeration system is by refrigerant and four big parts, i.e. compressor, condenser, expansion valve and evaporator composition.Evaporator
Generally comprise dry evaporator and flooded evaporator.
In shipbuilding industry, evaporator generally selects dry evaporator, by refrigerant in heat exchange in-tube evaporation, gasification
The flow velocity that the volume of expansion improves, washes away back compressor for the lubricating oil carried secretly in heat exchanger tube.But the refrigeration of dry evaporator
Amount has directly corresponded to the internal circulating load of system refrigerant, and when refrigerating capacity is relatively large, the internal circulating load of refrigerant also can be promoted accordingly；
Meanwhile dry evaporator, in big system, system can adjust operating condition to will appear the higher degree of superheat, limit dry evaporator cold
Measure the application in larger refrigeration system.
And for flooded evaporator, oil return opening is usually provided with the fixation position of evaporator oil-enriched layer, in ship row
During sailing, the meeting of waving of ship passes through injection so that oil return operation cutout or oil return opening are sampled as a large amount of freon liquid
Valve enters compressor injury mechanical equipment.Therefore in the case where equipment swinging, it is difficult to carry out oil return by fixed oil return opening
Operation, influences the service life of compressor.
Summary of the invention
The purpose of the utility model is to provide a kind of full-liquid type refrigeration system, system that employs flooded evaporator,
It can not only normal oil return in the case where equipment swinging；Simultaneously in the cyclic process of refrigerant, it can ensure that into compressor
The refrigerant of air entry is gaseous state, avoids liquid hit phenomenon, ensure that the operational safety of compressor.
In order to achieve the above objectives, the technical solution adopted in the utility model is:
A kind of full-liquid type refrigeration system, including compressor, condenser, expansion valve and the steaming being sequentially communicated by the first pipeline
Device is sent out, the evaporator is flooded evaporator comprising for storing the first shell of refrigerant, being opened in the first shell
It is multiple first oil return openings on body, intracorporal for being passed through more heat exchanger tubes of pass-out heat source set on the first shell, wherein extremely
A few heat exchanger tube is exposed to the ullage of the refrigerant, and the full-liquid type refrigeration system further includes regenerator, and described time
Hot device is connected by the second pipeline with first oil return opening and the compressor.
Preferably, it there are three first oil return openings, including is set to the first shell and is flush to the refrigerant liquid level
Oil return opening on the first of place, set on the first shell bottom the first lower oil return opening and be set on described first oil return opening and
Described first descends oil return opening in first between oil return opening.
Preferably, the full-liquid type refrigeration system further includes being connected to the first oil return pipe at first oil return opening, setting
The first regulating valve on first oil return pipe, first oil return pipe are connected with second pipeline.
Preferably, the full-liquid type refrigeration system further includes the collector tube being connected on the flooded evaporator, opens up
In the liquid collecting bottom of the tube the second oil return opening, be connected at second oil return opening the second oil return pipe, be set to described second
The second regulating valve on oil return pipe, second oil return pipe are connected with second pipeline.
It is further preferred that the full-liquid type refrigeration system further includes being connected to the collector tube and full-liquid type evaporation
Third pipeline between device, the first shut-off valve on the third pipeline, the collector tube are equipped with liquid-level switch and liquid
Position transmitter.
Preferably, the condenser includes second shell, is set to the intracorporal condenser pipe of the second shell, the condenser pipe two
End is respectively communicated with cold source import and cold source outlet, and the regenerator and the condenser are arranged with shell comprising are arranged in institute
The intracorporal product heat cal rod of second shell is stated, the product heat cal rod is connected with second pipeline.
Preferably, the full-liquid type refrigeration system further includes evaporating along far from the condenser and close to the full-liquid type
The direction of device is sequentially arranged in the second shut-off valve, first filter and the first solenoid valve on first pipeline, the expansion valve
Between first solenoid valve and the flooded evaporator.
Preferably, the full-liquid type refrigeration system further includes along far from the flooded evaporator and close to the backheat
The direction of device is sequentially arranged in third shut-off valve, the second filter, second solenoid valve and the first liquid-sighting glass on second pipeline.
Preferably, the full-liquid type refrigeration system further includes along far from the regenerator and close to the side of the compressor
To the second liquid-sighting glass, third regulating valve and the 4th shut-off valve being sequentially arranged on second pipeline.
Due to the application of the above technical scheme, the utility model has the advantage that this is practical new compared with prior art
A kind of full-liquid type refrigeration system of type, by the way that at least one heat exchanger tube to be exposed to the ullage of refrigerant, so that refrigerant
It can be entirely located in heat exchange area, so that refrigerant is mixed with oil because of constantly boiling, avoid oil return opening sampling
Compressor is damaged for a large amount of freon liquid；Oil return is grasped in the case that the setting of multiple oil return openings simultaneously avoids equipment swinging
The case where stopping；And at least one heat exchanger tube for being exposed to refrigerant ullage can be as superheat section, to evaporation
Refrigerant vapour afterwards is overheated, it is ensured that the refrigerant for sucking compressor air suction mouth is gaseous state, avoids liquid hit phenomenon, is protected
The operational safety of compressor is demonstrate,proved.
Detailed description of the invention
Attached drawing 1 is the structural schematic diagram of the utility model.
Wherein: 1, the first pipeline；2, compressor；3, condenser；31, second shell；32, cold source import；33, cold source goes out
Mouthful；4, expansion valve；5, flooded evaporator；51, first shell；52, the first oil return opening；521, oil return opening on first；522,
Oil return opening once；523, oil return opening in first；53, the first oil return pipe；54, the first regulating valve；6, regenerator；61, product heat cal rod；7,
Second pipeline；8, collector tube；81, the second oil return opening；82, the second oil return pipe；83, the second regulating valve；9, third pipeline；10,
One shut-off valve；11, liquid-level switch；12, fluid level transmitter；13, the second shut-off valve；14, first filter；15, the first electromagnetism
Valve；16, third shut-off valve；17, the second filter；18, second solenoid valve；19, the first liquid-sighting glass；20, the second liquid-sighting glass；21,
Third regulating valve；22, the 4th shut-off valve；23, heat source import；24, thermal source outlet.
Specific embodiment
The technical solution of the utility model is further elaborated with reference to the accompanying drawing.
It is shown in Figure 1, a kind of full-liquid type refrigeration system, including the compressor 2, cold being sequentially communicated by the first pipeline 1
Condenser 3, expansion valve 4 and evaporator, evaporator be flooded evaporator 5 comprising for store refrigerant first shell 51,
Multiple first oil return openings 52 being opened in first shell 51, more for being used to be passed through pass-out heat source in first shell 51
Heat exchanger tube (not shown), wherein at least one heat exchanger tube are exposed to the ullage of refrigerant, and full-liquid type refrigeration system is also
Including regenerator 6, regenerator 6 is connected by the second pipeline 7 with the first oil return opening 52 and compressor 2.Here, compressor 2 is
Helical-lobe compressor passes through motor driven.Expansion valve 4 is electric expansion valve.Heat exchanger tube is connected to heat source import 23 and thermal source outlet 24.
Herein, by the way that at least one heat exchanger tube to be exposed to the ullage of refrigerant, enable refrigerant whole
In heat exchange area, so that refrigerant is mixed with oil because of constantly boiling, avoids the first oil return opening 52 and be sampled as
A large amount of freon liquid and damage compressor 2；The setting of multiple first oil return openings 52 avoids equipment swinging situation next time simultaneously
The case where oil operation stops；And at least one heat exchanger tube for being exposed to refrigerant ullage can be right as superheat section
Refrigerant vapour after evaporation is overheated, it is ensured that the refrigerant of sucking 2 air entry of compressor is gaseous state, and it is existing to avoid liquid hammer
As ensure that the operational safety of compressor 2.Here, heat exchanger tube is arranged at the 1/3-1/2 of first shell 51, and top stays 1/2 ~
2/3 gas-phase space.
In the present embodiment, it there are three the first oil return openings 52, including is set to first shell 51 and is flush at refrigerant liquid level
First on oil return opening 521, set on 51 bottom of first shell the first lower oil return opening 522 and be set to oil return opening 521 on first
Between the first lower oil return opening 522 first in oil return opening 523.The full-liquid type refrigeration system further includes being connected to the first oil return opening
The first oil return pipe 53 at 52, the first regulating valve 54 on the first oil return pipe 53, the first oil return pipe 53 and 7 phase of the second pipeline
Connection.The full-liquid type refrigeration system further includes the collector tube 8 being connected on flooded evaporator 5, is opened in 8 bottom of collector tube
Second oil return opening 81, the second oil return pipe 82 being connected at the second oil return opening 81, second on the second oil return pipe 82 are adjusted
Valve 83, the second oil return pipe 82 are connected with the second pipeline 7.Since collector tube 8 is not involved in heat exchange, interior relatively placidity is managed, in lower section
It opens at oil return opening one.The full-liquid type refrigeration system further includes the third pipeline being connected between collector tube 8 and flooded evaporator 5
9, the first shut-off valve 10 on third pipeline 9, collector tube 8 are equipped with liquid-level switch 11 and fluid level transmitter 12.
By the setting of the first regulating valve 54 and the second regulating valve 83, adjustable first oil return opening 52 and the second oil return opening
81 flow is to rational state
In the present embodiment, condenser 3 (does not show including second shell 31, the condenser pipe in second shell 31 in figure
Out), condenser pipe both ends are respectively communicated with cold source import 32 and cold source outlet 33, and regenerator 6 and condenser 3 are arranged with shell, packet
The product heat cal rod 61 being arranged in second shell 31 is included, product heat cal rod 61 is connected with the second pipeline 7.By by regenerator 6 and condensation
Device 3 is arranged with shell, so that gas after the low-temperature low-pressure refrigerant in product heat cal rod 61, with the refrigerant heat exchanger of medium temperature high pressure on the outside of pipe
Change, by being mixed to the refrigerant liquid in pipe with lubricating oil using the refrigerant liquid of the medium temperature high pressure outside pipe as low-grade heat source
It closes object to be heated, realizes reusing of energy source.Herein, the refrigerant liquid in second shell 31, in bottom by product heat cal rod
Refrigerant evaporation endothermic in 61, realizes supercooling, to reduce the shwoot amount after expansion valve 4, compensates in oil return operation
The refrigerant for participating in circulation compensates for the participation circularly cooling agent work done that compressor 2 compresses in this oil return operation, improves
Efficient Cycle amount.Regenerator 6 is arranged with shell so that whole system is compact-sized with condenser 3 simultaneously, and cost is relatively low, convenient
It promotes.
In the present embodiment, which further includes along far from condenser 3 and close to flooded evaporator 5
Direction the second shut-off valve 13, first filter 14 and the first solenoid valve 15, the expansion valve 4 that are sequentially arranged on the first pipeline 1 set
Between the first solenoid valve 15 and flooded evaporator 5.The full-liquid type refrigeration system further includes along far from flooded evaporator 5
And third shut-off valve 16, the second filter 17, second solenoid valve on the second pipeline 7 are sequentially arranged in close to the direction of regenerator 6
18 and first liquid-sighting glass 19.The full-liquid type refrigeration system further include along far from regenerator 6 and close to the direction of compressor 2 successively
The second liquid-sighting glass 20, third regulating valve 21 and the 4th shut-off valve 22 on the second pipeline 7.
Herein, the effect of the second shut-off valve 13, third shut-off valve 16 and the 4th shut-off valve 22 is maintenance partition, the first mistake
The effect of filter 14, the second filter 17 is impurity screening, and the effect of the first solenoid valve 15 and second solenoid valve 18 is to pass through electricity
Control automatically controls, by the control to valve body switch, the Lai Shixian system corresponding not oil return time of homologous ray and different operating conditions with
And the requirement at oil return interval.Whether the second liquid-sighting glass 20 is used to observe whether refrigerant liquefies completely, and have oil to return to compressor,
Third regulating valve 21 is for adjusting back pressure.
Illustrate the course of work of lower the present embodiment in detail below: when work starts, compressor 2 exports the refrigeration of high temperature and pressure
Agent gas after the refrigerant gas of high temperature and pressure enters condenser 3, is condensed into medium temperature high pressure in the heat transfer process with cold source
Refrigerant liquid, the refrigerant liquid of subsequent medium temperature high pressure becomes the refrigerant liquid of low-temp low-pressure by the effect of expansion valve 4
Body, the refrigerant liquid of subsequent low-temp low-pressure enter flooded evaporator 5, and constantly heat absorption is steamed in the heat transfer process with heat source
Hair, the refrigerant vapour after evaporation return in compressor 2, complete circulation, and refrigeration is realized during the circulation.Meanwhile
During refrigeration cycle, the refrigerant liquid of the low-temp low-pressure in flooded evaporator 5 and the mixture of lubricating oil, from first
Oil return opening 52 and the second oil return opening 81 by gravity outflow flooded evaporator 5 and enter product heat cal rod 61, in product heat cal rod 61
The middle refrigerant liquid heating and gasifying by the medium temperature high pressure in 3 shell of out-tubular condensing device, after the refrigerant vapor in product heat cal rod 61
Volume expansion, refrigerant vapour will be mixed in lubricating oil therein wash away bring into 2 air entry of compressor realize oil return operation.
The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and be implemented, do not limit the protection scope of the present invention,
All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover in the protection scope of the utility model
It is interior.
Claims (9)
1. a kind of full-liquid type refrigeration system, including the compressor (2), condenser (3), swollen being sequentially communicated by the first pipeline (1)
Swollen valve (4) and evaporator, it is characterised in that: the evaporator is flooded evaporator (5) comprising for storing refrigerant
First shell (51), is set to the first shell at multiple first oil return openings (52) being opened on the first shell (51)
(51) the more heat exchanger tubes for being used to be passed through pass-out heat source in, wherein at least one heat exchanger tube are exposed to the liquid level of the refrigerant
Top, the full-liquid type refrigeration system further include regenerator (6), and the regenerator (6) passes through the second pipeline (7) and described first
Oil return opening (52) is connected with the compressor (2).
2. a kind of full-liquid type refrigeration system according to claim 1, it is characterised in that: first oil return opening (52) has three
It is a, oil return opening (521) on first at the refrigerant liquid level is flush to, set on described including being set to the first shell (51)
The first of first shell (51) bottom descends oil return opening (522) and is set on described first under oil return opening (521) and described first
Between oil return opening (522) first in oil return opening (523).
3. a kind of full-liquid type refrigeration system according to claim 1, it is characterised in that: the full-liquid type refrigeration system is also wrapped
The first tune for including the first oil return pipe (53) being connected at first oil return opening (52), being set on first oil return pipe (53)
It saves valve (54), first oil return pipe (53) is connected with second pipeline (7).
4. a kind of full-liquid type refrigeration system according to claim 1, it is characterised in that: the full-liquid type refrigeration system is also wrapped
Include the collector tube (8) being connected on the flooded evaporator (5), the second oil return opening for being opened in the collector tube (8) bottom
(81), for being connected to the second oil return pipe (82) at second oil return opening (81), being set on second oil return pipe (82)
Two regulating valves (83), second oil return pipe (82) are connected with second pipeline (7).
5. a kind of full-liquid type refrigeration system according to claim 4, it is characterised in that: the full-liquid type refrigeration system is also wrapped
It includes the third pipeline (9) being connected between the collector tube (8) and the flooded evaporator (5), be set to the third pipeline
(9) the first shut-off valve (10) on, the collector tube (8) are equipped with liquid-level switch (11) and fluid level transmitter (12).
6. a kind of full-liquid type refrigeration system according to claim 1, it is characterised in that: the condenser (3) includes second
Shell (31), be set to the second shell (31) in condenser pipe, the condenser pipe both ends be respectively communicated with cold source import (32) and
Cold source exports (33), and the regenerator (6) and the condenser (3) are arranged with shell comprising are arranged in the second shell
(31) product heat cal rod (61) in, the product heat cal rod (61) are connected with second pipeline (7).
7. a kind of full-liquid type refrigeration system according to claim 1, it is characterised in that: the full-liquid type refrigeration system is also wrapped
It includes and is sequentially arranged in first pipeline (1) along far from the condenser (3) and close to the direction of the flooded evaporator (5)
On the second shut-off valve (13), first filter (14) and the first solenoid valve (15), the expansion valve (4) be set to it is described first electricity
Between magnet valve (15) and the flooded evaporator (5).
8. a kind of full-liquid type refrigeration system according to claim 1, it is characterised in that: the full-liquid type refrigeration system is also wrapped
It includes and is sequentially arranged in second pipeline (7) along far from the flooded evaporator (5) and close to the direction of the regenerator (6)
On third shut-off valve (16), the second filter (17), second solenoid valve (18) and the first liquid-sighting glass (19).
9. a kind of full-liquid type refrigeration system according to claim 1, it is characterised in that: the full-liquid type refrigeration system is also wrapped
Include the be sequentially arranged on second pipeline (7) along the direction far from the regenerator (6) and close the compressor (2)
Two liquid-sighting glass (20), third regulating valve (21) and the 4th shut-off valve (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821878867.7U CN209042800U (en) | 2018-11-15 | 2018-11-15 | A kind of full-liquid type refrigeration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821878867.7U CN209042800U (en) | 2018-11-15 | 2018-11-15 | A kind of full-liquid type refrigeration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209042800U true CN209042800U (en) | 2019-06-28 |
Family
ID=67042294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821878867.7U Active CN209042800U (en) | 2018-11-15 | 2018-11-15 | A kind of full-liquid type refrigeration system |
Country Status (1)
| Country | Link |
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| CN (1) | CN209042800U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109341120A (en) * | 2018-11-15 | 2019-02-15 | 张家港市江南利玛特设备制造有限公司 | A kind of full-liquid type refrigeration system |
-
2018
- 2018-11-15 CN CN201821878867.7U patent/CN209042800U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109341120A (en) * | 2018-11-15 | 2019-02-15 | 张家港市江南利玛特设备制造有限公司 | A kind of full-liquid type refrigeration system |
| CN109341120B (en) * | 2018-11-15 | 2024-03-01 | 苏州利玛特能源装备有限公司 | Flooded refrigerating system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215634 east side of Huachang Road, Yangtze River Chemical Industrial Park, Zhangjiagang City, Suzhou City, Jiangsu Province (LIMAT) Patentee after: Suzhou Limat Energy Equipment Co.,Ltd. Address before: 215634 east side of Huachang Road, Yangtze River Chemical Industrial Park, Zhangjiagang City, Suzhou City, Jiangsu Province (LIMAT) Patentee before: JIANGNAN LMART EQUIPMENT MANUFACTURING (ZHANGJIAGANG) Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |