CN202993637U - Two-stage multi-connection double-throttling complete inter-cooling refrigerating system - Google Patents
Two-stage multi-connection double-throttling complete inter-cooling refrigerating system Download PDFInfo
- Publication number
- CN202993637U CN202993637U CN201220597392.0U CN201220597392U CN202993637U CN 202993637 U CN202993637 U CN 202993637U CN 201220597392 U CN201220597392 U CN 201220597392U CN 202993637 U CN202993637 U CN 202993637U
- Authority
- CN
- China
- Prior art keywords
- valve
- compressor
- outlet
- inlet
- throttling
- 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.)
- Expired - Lifetime
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 18
- 238000005057 refrigeration Methods 0.000 claims abstract description 41
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 230000009977 dual effect Effects 0.000 claims 2
- 230000006835 compression Effects 0.000 abstract description 26
- 238000007906 compression Methods 0.000 abstract description 26
- 230000008676 import Effects 0.000 description 18
- 239000003507 refrigerant Substances 0.000 description 11
- 239000007789 gas Substances 0.000 description 6
- 238000004378 air conditioning Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model discloses a two-stage multi-connection double-throttling complete inter-cooling refrigerating system, and provides a refrigerating system which realizes circulation between single-stage compression and two-stage compression via switching of a valve. The two-stage multi-connection double-throttling complete inter-cooling refrigerating system comprises a first air suction pipeline, a second air suction pipeline, an intermediate-pressure liquid supply pipeline, a first evaporator, a second evaporator, a first throttling device, a second throttling device and multiple groups of two-stage compressor units, and each group of two-stage compressor units comprises a first compressor, a second compressor, a first valve, a second valve, a third valve, a fourth valve, a fifth valve, a sixth valve, a condenser, a third throttling device and an intermediate cooler. The two-stage multi-connection double-throttling complete inter-cooling refrigerating system is formed by the multiple two-stage compressor units which are parallelly connected on the first air suction pipeline, the second air suction pipeline and the intermediate-pressure liquid supply pipeline, circulation between single-stage compression and two-stage compression of the two-stage multi-connection double-throttling complete inter-cooling refrigerating system is realized via turning on or turning off of internal valves, and every single compressor in the two-stage compressor units can be used separately. The two-stage multi-connection double-throttling complete inter-cooling refrigerating system is flexible to adjust and small in temperature fluctuation in a refrigeration storeroom.
Description
Technical field
The utility model relates to, and particularly relates to the middle cooling refrigeration system fully of the multi-joint second throttle of a kind of twin-stage.
Background technology
The multi-connected air conditioning system that is comprised of many off-premises stations and Duo Tai indoor set is with its flexible operation, and Energy Efficiency Ratio is high, is easy to control be widely used in field of air conditioning.But existing multi-gang air conditioner is all single-stage compression refrigeration system, is only applicable to field of air conditioning.And for picture multi-stage temperature refrigerator, how warm refrigerator car etc., when single-stage compression refrigeration system (being generally used for the high-temperature refrigeration environment) and double-stage compressive refrigerating system (being generally used for the cryogenic refrigeration environment) and when depositing, need to be to high and low temperature refrigerating environment separate configurations refrigeration system, and can not switch each other, cause the waste in the refrigerating plant configuration, the present or blank of technology for the multi-connected machine that can be common to single-stage and Two-stage Compression kind of refrigeration cycle.
The utility model content
The purpose of this utility model is for the technological deficiency that exists in prior art, utilizes the valve switching can realize the single stage compress circulation and provide a kind of, can realize again the middle cooling refrigeration fully of the multi-joint second throttle of the twin-stage system of Two-stage Compression circulation.
For realizing that the technical scheme that the purpose of this utility model adopts is:
complete cooling refrigeration system in the middle of the multi-joint second throttle of a kind of twin-stage, it is characterized in that, comprise the first suction line, the second suction line, middle pressure liquid feeding pipeline, the first evaporimeter, the second evaporimeter, first throttle device, the second throttling arrangement and organize the double-compressor group more, every group of described double-compressor group comprises the first compressor, the second compressor, the first valve, the second valve, the 3rd valve, the 4th valve, the 5th valve, the 6th valve, condenser, the 3rd throttling arrangement and intercooler, and described many group double-compressor groups are connected between the first suction line, the second suction line and middle pressure liquid feeding pipeline side by side, described the first evaporimeter is used for the high-temperature refrigeration environment, and described the second evaporimeter is used for the cryogenic refrigeration environment, the liquid outlet of the intercooler of every group of described double-compressor group is connected with described middle pressure liquid feeding pipeline respectively, the described middle pressure liquid feeding pipeline other end is connected with described the second throttling arrangement import with the import of described first throttle device respectively, described first throttle device outlet is connected with described the first evaporator, described the first evaporator outlet is connected with described the first suction line, described the second throttling arrangement outlet is connected with described the second evaporator, and described the second evaporator outlet is connected with described the second suction line, the described first suction line other end is connected with the 3rd valve inlet with the second valve inlet of every group of described double-compressor group respectively, and the described second suction line other end is connected with the first valve inlet of every group of described double-compressor group, be connected with the air entry of described the first compressor after the outlet parallel connection of the outlet of described the first valve and described the second valve, the exhaust outlet of described the first compressor respectively with described the 4th valve inlet be connected the 5th valve inlet and be connected, described the 4th valve export is connected with described intercooler liquid level below import, be connected with described the second compressor air suction mouth after described the 3rd valve export and described the 6th valve export parallel connection, described the 6th valve inlet is connected with the intercooler gas vent, be connected with described condenser inlet after described the second exhaust outlet of compressor and described the 5th valve export parallel connection, the outlet of described condenser is connected with the intercooler import through described the 3rd throttling arrangement.
Described first throttle device, the second throttling arrangement, the 3rd throttling arrangement are any in heating power expansion valve, electric expansion valve, capillary, throttle orifice plate apparatus.
Described condenser is air-cooled condenser, water-cooled condenser or evaporative condenser.
Described the first valve, the second valve, the 3rd valve, the 4th valve, the 5th valve, the 6th valve are hand-operated valve, motor-driven valve, triple valve or cross valve.
Compared with prior art, the beneficial effects of the utility model are:
the middle cooling refrigeration fully of the multi-joint second throttle of twin-stage of the present utility model system is by being connected in parallel in the first suction line, many groups double-compressor group of the second suction line and middle pressure liquid feeding pipeline forms, unlatching by being connected in double-compressor group internal valves or close, each double-compressor group all can realize from the first suction line is air-breathing enter through single stage compress and with cold-producing medium the pressure liquid feeding pipeline complete the single stage compress kind of refrigeration cycle and from the second suction line air-breathing through Two-stage Compression and cold-producing medium is entered the pressure liquid feeding pipeline complete the function of Two-stage Compression kind of refrigeration cycle, and all can use separately at inner each compressor of single stage compress circulation time double-compressor group.Therefore, system can save one-time investment when having single stage compress circulation and Two-stage Compression circulation to need, be convenient to simultaneously refrigeration system energy-conservation, has improved the utilization ratio of refrigeration system, and the refrigeration system flexible adjustment, and the temperature fluctuation in refrigerating environment is little.
Description of drawings
Figure 1 shows that the middle cooling refrigeration system schematic diagram fully of the multi-joint second throttle of a kind of twin-stage of the utility model.
In figure: 1. the first suction line, 2. the second suction line is pressed liquid feeding pipeline in 3., 4-1. the first compressor, 4-2. the second compressor, 5-1. the first valve, 5-2. the second valve, 5-3. the 3rd valve, 5-4. the 4th valve, 5-5. the 5th valve, 5-6. the 6th valve, 6. condenser, 7-1. the first throttle device, 7-2. the second throttling arrangement, 7-3. the 3rd throttling arrangement, 8. intercooler, 9-1. the first evaporimeter, 9-2. the second evaporimeter.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the schematic diagram of refrigeration system fully cooling in the middle of the multi-joint second throttle of a kind of twin-stage of the utility model, comprises the first suction line 1, the second suction line 2, middle pressure liquid feeding pipeline 3, the first evaporimeter 9-1, the second evaporimeter 9-2, first throttle device 7-1, the second throttling arrangement 7-2 and organizes the double-compressor group more.Every group of described double-compressor group comprises the first compressor 4-1, the second compressor 4-2, the first valve 5-1, the second valve 5-2, the 3rd valve 5-3, the 4th valve 5-4, the 5th valve 5-5, the 6th valve 5-6, condenser 6, the 3rd throttling arrangement 7-3 and intercooler 8, and described many group double-compressor groups are connected between the first suction line 1, the second suction line 2 and middle pressure liquid feeding pipeline 3 side by side.Described the first evaporimeter 9-1 is used for the high-temperature refrigeration environment, and described the second evaporimeter 9-2 is used for the cryogenic refrigeration environment.The liquid outlet of the intercooler 8 of every group of described double-compressor group is connected with described middle pressure liquid feeding pipeline 3 respectively, described middle pressure liquid feeding pipeline 3 other ends are connected with described the second throttling arrangement 7-2 import with described first throttle device 7-1 import respectively, described first throttle device 7-1 outlet is connected with described the first evaporimeter 9-1 import, described the first evaporimeter 9-1 outlet is connected with described the first suction line 1, described the second throttling arrangement 7-2 outlet is connected with described the second evaporimeter 9-2 import, and described the second evaporimeter 9-2 outlet is connected with described the second suction line 2.Described first suction line 1 other end is connected with the 3rd valve 5-3 import with the second valve 5-2 import of every group of described double-compressor group respectively, and described second suction line 2 other ends are connected with the first valve 5-1 import of every group of described double-compressor group.be connected with the air entry of described the first compressor 4-1 after the outlet parallel connection of the outlet of described the first valve 5-1 and described the second valve 5-2, the exhaust outlet of described the first compressor 4-2 respectively with described the 4th valve 5-4 import be connected the 5th valve 5-5 import and be connected, described the 4th valve 5-4 outlet is connected with described intercooler 8 liquid level below imports, described the 3rd valve 5-3 outlet is connected with described the second compressor 4-2 air entry afterwards with described the 6th valve 5-6 outlet parallel connection, described the 6th valve 5-6 import is connected with intercooler 8 gas vents, described the second compressor 4-2 exhaust outlet is connected with described condenser 6 imports afterwards with described the 5th valve 5-5 outlet parallel connection, the outlet of described condenser 6 is connected with intercooler 8 imports through described the 3rd throttling arrangement 7-3.
Wherein, described first throttle device, the second throttling arrangement, the 3rd throttling arrangement are any in heating power expansion valve, electric expansion valve, capillary, throttle orifice plate apparatus.
Described condenser is air-cooled condenser, water-cooled condenser or evaporative condenser.
Described the first valve, the second valve, the 3rd valve, the 4th valve, the 5th valve, the 6th valve are hand-operated valve, motor-driven valve, triple valve or cross valve, can be electronic, pneumatic or manual, and also available triple valve or cross valve replace.
In the middle cooling refrigeration fully of the multi-joint second throttle of twin-stage of the present utility model system, any one double-compressor group all can be used as the refrigeration unit use of Two-stage Compression and single stage compress.
1, use as the Two-stage Compression refrigeration unit:
In the double-compressor group, the second valve 5-2, the 3rd valve 5-3 and the 5th valve 5-5 close, and the first valve 5-1, the 4th valve 5-4 and the 6th valve 5-6 open.middle compression refrigerant liquid in middle pressure liquid feeding pipeline 3 enters in the second suction line 2 in the second evaporimeter 9-2 after the second throttling arrangement 7-2 reducing pressure by regulating flow after evaporation endothermic, enter through the first valve 5-1 and carry out first order compression in the first compressor 4-1, middle compression refrigerant steam after the first compressor compresses enters intercooler 8 from middle cooler 8 liquid level below imports through the 4th valve 5-4, the compression refrigerant steam enters through the 6th valve 5-6 and carries out second level compression in the second compressor 4-2 from out saturated of middle cooler 8 gas vents, high-pressure refrigerant vapor after compression is condensed into high pressure refrigerant liquid in condenser 6, during out high pressure refrigerant liquid enters intercooler 8 after throttling is middle compression refrigerant in the 3rd throttling arrangement 7-3 from condenser 6, liquids and gases separate in intercooler 8, the saturated refrigerant gas of middle pressure flows out from middle cooler 8 gas vents, enter in the second compressor 4-2 and compress, liquid in intercooler 8 is completed the Two-stage Compression kind of refrigeration cycle in pressure liquid feeding pipeline 3 from middle cooler 8 liquid outlets outflows enter.
2, use as the single stage compress refrigeration unit:
In the double-compressor group, the second valve 5-2, the 3rd valve 5-3 and the 5th valve 5-5 open, and the first valve 5-1, the 4th valve 5-4 and the 6th valve 5-6 close.middle compression refrigerant liquid in middle pressure liquid feeding pipeline 3 enters in the first suction line 1 through first throttle device 7-1 reducing pressure by regulating flow in the first evaporimeter 9-1 after evaporation endothermic, enter in the first compressor 4-1 and the second compressor 4-2 through the second valve 5-2 and the 3rd valve 5-3 respectively and compress, the high-pressure refrigerant vapor of high-pressure refrigerant vapor after the first compressor 4-1 compression after the 5th valve 5-5 and the second compressor 4-2 compression joined and entered condensation in condenser 6, then in the 3rd throttling arrangement 7-3 throttling to middle pressure, enter in middle press liquid pipeline 3 through intercooler 8 and complete the single stage compress kind of refrigeration cycle.
When the first valve 5-1, the second valve 5-2, the 4th valve 5-4, the 5th valve and the 6th valve 5-6 close, when the 3rd valve 5-3 opened, the second compressor 4-2, condenser 6, intercooler 8, the 3rd throttling arrangement, first throttle device 7-1 and the first evaporimeter 9-1 can complete separately the single stage compress kind of refrigeration cycle; When the first valve 5-1, the 3rd valve 5-3, the 4th valve 5-4 and the 6th valve 5-6 close, when the second valve 5-2, the 5th valve 5-5 unlatching, the first compressor 4-1, condenser 6, intercooler 8, the 3rd throttling arrangement 7-3, first throttle device 7-1 and the first evaporimeter 9-1 can complete separately the single stage compress kind of refrigeration cycle.
Refrigeration system of the present utility model is utilized valve to switch and can be realized the single stage compress circulation, can realize again the Two-stage Compression circulation, and inner each compressor of double-compressor group all can use separately.Therefore, system can save one-time investment when having single stage compress and Two-stage Compression to need, be convenient to simultaneously refrigeration system energy-conservation, has improved the utilization ratio of refrigeration system, and the refrigeration system flexible adjustment, and in refrigerating environment, temperature fluctuation is little.
The above is only preferred embodiment of the present utility model; should be noted that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220597392.0U CN202993637U (en) | 2012-11-12 | 2012-11-12 | Two-stage multi-connection double-throttling complete inter-cooling refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220597392.0U CN202993637U (en) | 2012-11-12 | 2012-11-12 | Two-stage multi-connection double-throttling complete inter-cooling refrigerating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202993637U true CN202993637U (en) | 2013-06-12 |
Family
ID=48564811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220597392.0U Expired - Lifetime CN202993637U (en) | 2012-11-12 | 2012-11-12 | Two-stage multi-connection double-throttling complete inter-cooling refrigerating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202993637U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927713A (en) * | 2012-11-12 | 2013-02-13 | 天津商业大学 | Double-stage multi-concatenate secondary throttling refrigerating system with middle cooling completely |
| CN103335436A (en) * | 2013-07-04 | 2013-10-02 | 天津商业大学 | One-stage throttling complete-inter-cooling variable-flow twin-stage compression refrigerating system |
| CN103335437A (en) * | 2013-07-04 | 2013-10-02 | 天津商业大学 | One-stage throttling incomplete-inter-cooling double-working-condition refrigerating system |
| CN103344059A (en) * | 2013-07-04 | 2013-10-09 | 天津商业大学 | Secondary throttling middle complete cooling variable flow two-stage compression refrigerating system |
| CN103954067A (en) * | 2014-04-15 | 2014-07-30 | 珠海格力电器股份有限公司 | Refrigerating device |
-
2012
- 2012-11-12 CN CN201220597392.0U patent/CN202993637U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927713A (en) * | 2012-11-12 | 2013-02-13 | 天津商业大学 | Double-stage multi-concatenate secondary throttling refrigerating system with middle cooling completely |
| CN103335436A (en) * | 2013-07-04 | 2013-10-02 | 天津商业大学 | One-stage throttling complete-inter-cooling variable-flow twin-stage compression refrigerating system |
| CN103335437A (en) * | 2013-07-04 | 2013-10-02 | 天津商业大学 | One-stage throttling incomplete-inter-cooling double-working-condition refrigerating system |
| CN103344059A (en) * | 2013-07-04 | 2013-10-09 | 天津商业大学 | Secondary throttling middle complete cooling variable flow two-stage compression refrigerating system |
| CN103954067A (en) * | 2014-04-15 | 2014-07-30 | 珠海格力电器股份有限公司 | Refrigerating device |
| CN103954067B (en) * | 2014-04-15 | 2016-06-08 | 珠海格力电器股份有限公司 | Refrigerating device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102901261B (en) | Two-stage multi-unit single-throttling incomplete-intercooling refrigeration system | |
| CN200996757Y (en) | A dual-source dual-working-condition heat pump energy-saving system | |
| CN201652663U (en) | Heat recovery heat pump air conditioning system | |
| CN202993637U (en) | Two-stage multi-connection double-throttling complete inter-cooling refrigerating system | |
| CN102901262B (en) | Two-stage multiplex secondary throttling and intermediate incomplete cooling type refrigerating system | |
| CN103471276B (en) | A kind of air injection enthalpy-increasing type aircondition | |
| WO2011113295A1 (en) | Multifunctional air-conditioning and hot-water system | |
| CN105805981A (en) | Dual-operation compression-ejection heat pump air conditioner system | |
| CN102927713B (en) | Double-stage multi-concatenate secondary throttling refrigerating system with middle cooling completely | |
| CN202993696U (en) | Twin-stage multi-parallel-connection single-throttling complete-intercooling refrigerating system | |
| CN202993639U (en) | Refrigeration system with two-stage multi-connection primary throttling and incomplete cooling in the middle | |
| CN204063403U (en) | A kind of heat pump water heater system | |
| CN102927718B (en) | Novel double-effect dual-temperature high temperature heat pump device | |
| CN202993640U (en) | Two-stage multi-connection double-throttling incomplete inter-cooling refrigerating system | |
| CN106871474A (en) | Air-cooled water-cooled combined air-conditioning system | |
| CN205641669U (en) | Duplex condition is compressed - is drawn and penetrates heat pump air conditioning system | |
| CN208222889U (en) | The refrigeration system of variable-flow single stage compress circulation and two-stage compression cycle can be achieved | |
| CN104180453A (en) | Heat pump water heater system of air conditioner | |
| CN107883606A (en) | A kind of efficient heat source tower heat pump | |
| CN201611192U (en) | Multifunctional air conditioner and water heating system | |
| CN102901278B (en) | Two-stage multi-connected primary throttling intermediate complete cooling refrigeration system | |
| CN207894062U (en) | A kind of improved air injection enthalpy-increasing air-conditioning system | |
| CN209524649U (en) | Superposition type air conditioner | |
| CN210399646U (en) | A kind of domestic refrigerator introducing natural cold source | |
| CN210004626U (en) | ground source heat pump heat recovery unit with high-efficiency throttling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130612 Effective date of abandoning: 20150311 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130612 Effective date of abandoning: 20150311 |
|
| RGAV | Abandon patent right to avoid regrant |