CN205332584U - Take vapour and liquid separator's CO2 secondary refrigerant refrigerating plant - Google Patents
Take vapour and liquid separator's CO2 secondary refrigerant refrigerating plant Download PDFInfo
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- CN205332584U CN205332584U CN201620064749.7U CN201620064749U CN205332584U CN 205332584 U CN205332584 U CN 205332584U CN 201620064749 U CN201620064749 U CN 201620064749U CN 205332584 U CN205332584 U CN 205332584U
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Abstract
The utility model belongs to a take vapour and liquid separator's CO2 secondary refrigerant refrigerating plant. The problem that will solve is exactly that the background art exists: the many multiplying powers of evaporimeter supply liquid, and there have ascending return -air pipeline resistance to be big, seriously influence the refrigeration effect of bottom evaporimeter, and the scheduling problem is hanged down to system economy nature. The problem of this technique is solved the technical scheme main points that adopt are: CO2 low pressure circulation section of thick bamboo B mouth returns a CO2 low pressure circulation A mouth or C mouth through CO2 vapour and liquid separator T mouth and S mouth, evaporimeter, CO2 vapour and liquid separator N mouth and M mouth, CO2 low pressure circulation section of thick bamboo A mouth or C mouth and F mouth, condensing evaporator K mouth and L mouth through the pipeline in proper order, the liquid level is higher than the interior liquid level of CO2 vapour and liquid separator in the CO2 low pressure circulation section of thick bamboo, and the liquid level is higher than the evaporimeter in the CO2 vapour and liquid separator, CO2 vapour and liquid separator is provided with level control apparatus. Be applicable to CO2 refrigerating system.
Description
Technical field: this utility model belongs to Refrigeration Technique, specifically a kind of CO with gas-liquid separator2Refrigerating medium refrigerating plant。
Background technology: existing CO2Refrigerating medium refrigerating plant, the CO of many multiplying powers2Cold-producing medium is by CO2Transport pump is to vaporizer, and the outlet of vaporizer is gas-liquid two-phase state, and return-air carries out gas-liquid separation to low pressure recycle cylinder, and liquid participates in circulation again, and gas enters condensation in condenser/evaporator。Many multiplying powers feed flow is to ensure that the heat transfer effect of vaporizer。Such design is very normal for conventional refrigerant system, but unit is arranged in the multi-story cold storage on top, storehouse, vaporizer many multiplying powers feed flow, there is rising return-air duct resistance big, has a strong impact on the problem such as refrigeration of bottom vaporizer。
Utility model content: the purpose of this utility model is exactly propose a kind of CO with gas-liquid separator2Refrigerating medium refrigerating plant, exists solving background technology: vaporizer many multiplying powers feed flow, there is rising return-air duct resistance big, has a strong impact on the problem such as refrigeration of bottom vaporizer。Solve this technical problem and be the technical scheme is that the first scheme: a kind of CO with gas-liquid separator2Refrigerating medium refrigerating plant, wherein refrigerant system is: refrigeration compressor outlet sequentially passes through condenser, liquid reservoir, choke valve and condenser/evaporator H mouth by pipeline and G mouth returns refrigeration compressor entrance；It is characterized in that CO2Secondary refrigerant system is: CO2Low pressure recycle cylinder B mouth sequentially passes through CO by pipeline2Gas-liquid separator T mouth and S mouth, vaporizer, CO2Gas-liquid separator N mouth and M mouth, CO2Low pressure recycle cylinder A mouth or C mouth and F mouth, condenser/evaporator K mouth and L mouth return CO2Low pressure recycle cylinder A mouth or C mouth；CO2In low pressure recycle cylinder, liquid level is higher than CO2Liquid level in gas-liquid separator, CO2In gas-liquid separator, liquid level is higher than vaporizer；CO2Gas-liquid separator is provided with fluid level control device。
First scheme: a kind of CO with gas-liquid separator2Refrigerating medium refrigerating plant, wherein refrigerant system is: refrigeration compressor outlet sequentially passes through condenser, liquid reservoir, choke valve and condenser/evaporator H mouth by pipeline and G mouth returns refrigeration compressor entrance；It is characterized in that CO2Secondary refrigerant system is: CO2Low pressure recycle cylinder B mouth sequentially passes through CO by pipeline2Gas-liquid separator T mouth and S mouth, vaporizer, CO2Gas-liquid separator N mouth and M mouth, condenser/evaporator K mouth and L mouth return CO2Low pressure recycle cylinder C mouth。CO2In low pressure recycle cylinder, liquid level is higher than CO2Liquid level in gas-liquid separator, CO2In gas-liquid separator, liquid level is higher than vaporizer；CO2Gas-liquid separator is provided with fluid level control device。
In two above scheme, CO2Low pressure recycle cylinder B mouth and CO2Between gas-liquid separator T mouth, CO is set2Pump。CO2The quantity of gas-liquid separator can be 1, it is also possible to is multiple stage；Every CO2The vaporizer quantity of gas-liquid separator configuration can be 1, it is also possible to is multiple stage。Wherein, CO2The A mouth of low pressure recycle cylinder and C mouth are positioned at the gas phase zone of inlet end, CO2The F mouth of low pressure recycle cylinder is positioned at the gas phase zone of outlet side, CO2The B mouth of low pressure recycle cylinder is positioned at liquid phase region。The K mouth of condenser/evaporator is positioned at CO2The inlet end of working medium side, the L mouth of condenser/evaporator is positioned at CO2The liquid outlet of working medium side, the H mouth of condenser/evaporator is the entrance of refrigeration working medium, and the G mouth of condenser/evaporator is the outlet of refrigeration working medium。CO2The T mouth of gas-liquid separator and N mouth are positioned at the bottom of gas phase zone, CO2The M mouth of gas-liquid separator is positioned at the top of gas phase zone, CO2The S mouth of gas-liquid separator is positioned at liquid phase region。
This utility model is had the beneficial effect that employing technique scheme compared with the prior art, CO2Low pressure recycle liquid within the cartridge relies on gravity to flow into the CO of each layer2In gas-liquid separator, influx is by CO2The fluid level control device of gas-liquid separator controls。Under special circumstances, due to the reason of pipe design, it is possible to arrange CO2Pump is to overcome the resistance of pipeline。CO2Gas-liquid separator level stability is in certain altitude range, it is to avoid due to the impact that each interlayer vaporizer setting height(from bottom) difference causes, it is ensured that the heat transfer effect of vaporizer。The more important thing is, from CO2Gas-liquid separator out be more dry gas, the resistance drop when resistance drop in rising standpipe is than gas-liquid two-phase is much smaller so that the evaporating temperature of bottom vaporizer is guaranteed, and is greatly improved the economy of system。
Accompanying drawing illustrates: Fig. 1 is the schematic diagram of the first scheme of this utility model。Fig. 2 is the schematic diagram of this utility model first scheme。
Detailed description of the invention:
Embodiment 1: with reference to Fig. 1, a kind of CO with gas-liquid separator2Refrigerating medium refrigerating plant, wherein refrigerant system is: refrigeration compressor 7 is exported and sequentially passed through condenser 8, liquid reservoir 1, choke valve 2 and condenser/evaporator 3H mouth and G mouth return refrigeration compressor 7 entrance by pipeline；It is characterized in that CO2Secondary refrigerant system is: CO2Low pressure recycle cylinder 4B mouth sequentially passes through CO by pipeline2Gas-liquid separator 5T mouth and S mouth, vaporizer 6, CO2Gas-liquid separator 5N mouth and M mouth, CO2Low pressure recycle cylinder 4A mouth or C mouth and F mouth, condenser/evaporator 3K mouth and L mouth return CO2Low pressure recycle cylinder 4A mouth or C mouth；CO2In low pressure recycle cylinder 4, liquid level is higher than CO2Liquid level in gas-liquid separator 5, CO2In gas-liquid separator 5, liquid level is higher than vaporizer 6；CO2Gas-liquid separator 5 is provided with fluid level control device；CO2Low pressure recycle cylinder 4B mouth and CO2Between gas-liquid separator 5T mouth, CO is set2Pump 9；CO2The quantity of gas-liquid separator 5 can be 1, it is also possible to is multiple stage；Every CO2Vaporizer 6 quantity of gas-liquid separator 5 configuration can be 1, it is also possible to is multiple stage。
Embodiment 2: with reference to Fig. 2, a kind of CO with gas-liquid separator2Refrigerating medium refrigerating plant, wherein refrigerant system is: refrigeration compressor 7 is exported and sequentially passed through condenser 8, liquid reservoir 1, choke valve 2 and condenser/evaporator 3H mouth and G mouth return refrigeration compressor 7 entrance by pipeline；It is characterized in that CO2Secondary refrigerant system is: CO2Low pressure recycle cylinder 4B mouth sequentially passes through CO by pipeline2Gas-liquid separator 5T mouth and S mouth, vaporizer 6, CO2Gas-liquid separator 5N mouth and M mouth, condenser/evaporator 3K mouth and L mouth return CO2Low pressure recycle cylinder 4C mouth；CO2In low pressure recycle cylinder 4, liquid level is higher than CO2Liquid level in gas-liquid separator 5, CO2In gas-liquid separator 5, liquid level is higher than vaporizer 6；CO2Gas-liquid separator 5 is provided with fluid level control device；CO2Low pressure recycle cylinder 4B mouth and CO2Between gas-liquid separator 5T mouth, CO is set2Pump 9；CO2The quantity of gas-liquid separator 5 can be 1, it is also possible to is multiple stage；Every CO2Vaporizer 6 quantity of gas-liquid separator 5 configuration can be 1, it is also possible to is multiple stage。
Claims (5)
1. the CO with gas-liquid separator2Refrigerating medium refrigerating plant, wherein refrigerant system is: refrigeration compressor (7) outlet sequentially passes through condenser (8), liquid reservoir (1), choke valve (2) and condenser/evaporator (3) H mouth by pipeline and G mouth returns refrigeration compressor (7) entrance；It is characterized in that CO2Secondary refrigerant system is: CO2Low pressure recycle cylinder (4) B mouth sequentially passes through CO by pipeline2Gas-liquid separator (5) T mouth and S mouth, vaporizer (6), CO2Gas-liquid separator (5) N mouth and M mouth, CO2Low pressure recycle cylinder (4) A mouth or C mouth and F mouth, condenser/evaporator (3) K mouth and L mouth return CO2Low pressure recycle cylinder (4) A mouth or C mouth；CO2Low pressure recycle cylinder (4) interior liquid level is higher than CO2Gas-liquid separator (5) interior liquid level, CO2Gas-liquid separator (5) interior liquid level is higher than vaporizer (6)；CO2Gas-liquid separator (5) is provided with fluid level control device。
2. the CO with gas-liquid separator2Refrigerating medium refrigerating plant, wherein refrigerant system is: refrigeration compressor (7) outlet sequentially passes through condenser (8), liquid reservoir (1), choke valve (2) and condenser/evaporator (3) H mouth by pipeline and G mouth returns refrigeration compressor (7) entrance；It is characterized in that CO2Secondary refrigerant system is: CO2Low pressure recycle cylinder (4) B mouth sequentially passes through CO by pipeline2Gas-liquid separator (5) T mouth and S mouth, vaporizer (6), CO2Gas-liquid separator (5) N mouth and M mouth, condenser/evaporator (3) K mouth and L mouth return CO2Low pressure recycle cylinder (4) C mouth；CO2Low pressure recycle cylinder (4) interior liquid level is higher than CO2Gas-liquid separator (5) interior liquid level, CO2Gas-liquid separator (5) interior liquid level is higher than vaporizer (6)；CO2Gas-liquid separator (5) is provided with fluid level control device。
3. a kind of CO with gas-liquid separator according to claim 1 or claim 22Refrigerating medium refrigerating plant, it is characterised in that CO2Between low pressure recycle cylinder (4) B mouth and CO2 gas-liquid separator (5) T mouth, CO is set2Pump (9)。
4. a kind of CO with gas-liquid separator according to claim 1 or claim 22Refrigerating medium refrigerating plant, its feature is at CO2The quantity of gas-liquid separator (5) can be 1, it is also possible to is multiple stage；Every CO2Vaporizer (6) quantity that gas-liquid separator (5) configures can be 1, it is also possible to is multiple stage。
5. a kind of CO with gas-liquid separator according to claim 32Refrigerating medium refrigerating plant, its feature is at CO2The quantity of gas-liquid separator (5) can be 1, it is also possible to is multiple stage；Every CO2Vaporizer (6) quantity that gas-liquid separator (5) configures can be 1, it is also possible to is multiple stage。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620064749.7U CN205332584U (en) | 2016-01-25 | 2016-01-25 | Take vapour and liquid separator's CO2 secondary refrigerant refrigerating plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620064749.7U CN205332584U (en) | 2016-01-25 | 2016-01-25 | Take vapour and liquid separator's CO2 secondary refrigerant refrigerating plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205332584U true CN205332584U (en) | 2016-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620064749.7U Active CN205332584U (en) | 2016-01-25 | 2016-01-25 | Take vapour and liquid separator's CO2 secondary refrigerant refrigerating plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205332584U (en) |
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2016
- 2016-01-25 CN CN201620064749.7U patent/CN205332584U/en active Active
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