CN202254532U - Water cooling type low-temperature refrigeration compressor set with economizer and one-way valve - Google Patents
Water cooling type low-temperature refrigeration compressor set with economizer and one-way valve Download PDFInfo
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- CN202254532U CN202254532U CN2011203375631U CN201120337563U CN202254532U CN 202254532 U CN202254532 U CN 202254532U CN 2011203375631 U CN2011203375631 U CN 2011203375631U CN 201120337563 U CN201120337563 U CN 201120337563U CN 202254532 U CN202254532 U CN 202254532U
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- economizer
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Abstract
The utility model relates to a thermal circulating device, in particular to a water cooling type low-temperature refrigeration compressor set with an economizer and a one-way valve. The water cooling type low-temperature refrigeration compressor set comprises a compressor (1), a condenser (2), an expansion valve A (3) and an evaporator (4), wherein the compressor (1) is a medium-temperature screw rod compressor, an air discharge outlet (1-2) is sequentially connected with the condenser (2), the expansion valve A (3), the evaporator (4) and an air suction inlet (1-1), the economizer (5), the one-way valve (6), an expansion valve B (7) and an electromagnetic valve (8) are arranged among the condenser (2), the expansion valve A (3) and an economizer connection standby opening (1-3), an outlet of the condenser (2) is respectively connected with the electromagnetic valve (8) and a first inlet (5-1), the electromagnetic valve (8) is connected with a second inlet (5-2) through the expansion valve B (7), and a second outlet (5-4) is connected with the economizer connection standby opening (1-3) through the one-way valve (6). The water cooling type low-temperature refrigeration compressor set has the beneficial effect that the energy efficiency is improved.
Description
Technical field
The utility model relates to a kind of thermodynamic cycle device, particularly a kind of water-cooled cryogenic refrigeration compressor bank that has economizer and check valve of utilizing refrigeration compressor to realize thermodynamic cycle.
Background technology
Chinese patent publication number CN101089518A discloses a kind of air-cooled water-cooled two-evaporimeter hot-water machine group; It has the refrigeration cycle be made up of compressor, water cooled condenser, air-cooled evaporimeter, water-cooled evaporimeter, and this loop is provided with controller, and compressor connects water cooled condenser through a cross valve; Be connected with entery and delivery port on the water cooled condenser; Water cooled condenser connects heating power expansion valve, and the outlet of heating power expansion valve connects water-cooled evaporimeter and air-cooled evaporimeter respectively, and the water-cooled evaporimeter is provided with entery and delivery port; The water-cooled evaporimeter is connected cross valve with air-cooled evaporimeter, and cross valve connects the refrigerant-cycle systems of compressor.It is mainly not enough: energy consumption is high, and efficient is general.
The compression process of helical-lobe compressor is unidirectional, and when rotor rotated, refrigerant vapour was compressed in the teeth groove of phase interlock and is transported to corresponding compression stroke bottom.In this stage, be accompanied by the continuous decrease of element volume, refrigerant vapour is compressed to condensing pressure from pressure of inspiration(Pi).Pressure and the intermediate pressure in the two stages of compression that the connection of helical-lobe compressor economizer is subsequent use mouthful are quite similar.Connect subsequent use mouthful for compression end of a period tonifying Qi because these characteristics, helical-lobe compressor can be used economizer, realize bigger efficiency.
Economizer can improve the operating mode of compressor; Its principle: from the high pressure liquid refrigerant of condenser after getting into economizer; Be divided into two parts part and further cool off the temperature of going to reduce a cold part through the mode that throttling absorbs the heat expansion of another part; Wherein a part of subcooled liquid that settles out directly advances the evaporimeter refrigeration through the propane supplying valve; And the uncooled gaseous propane of another part gets into compressor continuation compression again through the line that is communicated with of economizer with compressor, gets into circulation.Its ingenious mode through swell refrigeration is stablized liquid refrigerant, to improve power system capacity and efficient.
Economizer system is when out of service, because differential pressure action can cause that cold-producing medium refluxes from outlet, causes danger thereby cause high-pressure fluid to scurry into low-pressure system.
Summary of the invention
The purpose of the utility model is the deficiency to prior art, provides a kind of economizer that uses to be connected the subsequent use mouthful of water-cooled cryogenic refrigeration compressor bank that has economizer and check valve that connects, improves efficiency with the helical-lobe compressor economizer.
For realizing above-mentioned technical purpose; The utility model adopts following technical scheme: a kind of water-cooled cryogenic refrigeration compressor bank that has economizer and check valve; It comprises: compressor, condenser, comprise the expansion valve A and the evaporimeter of bulb; Compressor is to comprise that suction inlet, air exit and economizer are connected subsequent use mouthful middle temperature helical-lobe compressor; Air exit connects condenser, expansion valve A, evaporimeter and suction inlet successively, and the bulb of expansion valve A is connected between evaporimeter and the suction inlet, wherein:
---also be provided with economizer, the check valve that comprises first import, second import, first outlet and second outlet, expansion valve B and the magnetic valve that comprises bulb between the subsequent use mouth of said condenser, expansion valve A and economizer connection;
---the outlet of said condenser connects the magnetic valve and first import respectively, and magnetic valve is connected with second import through expansion valve B;
---first outlet is connected with said expansion valve A, and second outlet is connected subsequent use mouthful through check valve and connects with said economizer, and the bulb of expansion valve B is connected between second outlet and the check valve.
Further, the outlet of said condenser connects the said magnetic valve and first import respectively through liquid-sighting glass.
Further, establish hand valve B between said air exit and the condenser.
Further, establish hand valve A between said condenser and the liquid-sighting glass.
After adopting technique scheme, the utlity model has following beneficial effect:
(1) adopting economizer, expansion valve B, check valve, is compressor compresses end of a period tonifying Qi on the one hand, improves the compressor efficiency, prevents that on the other hand the high-pressure fluid in the compressor from scurrying into low-pressure system, improves the security of whole unit.
(2) establish liquid-sighting glass, the situation of cooling fluid in the convenient observation unit.
(3) establish hand valve B, the operation of the whole unit of convenient control, convenient maintenance.
(4) establish hand valve A, it cooperates with magnetic valve, and flowing of convenient control cold-producing medium improves the performance of whole unit.
Description of drawings
Fig. 1 is the sketch map of the utility model.
Among the figure: 1, compressor, 1-1, suction inlet, 1-2, air exit, 1-3, economizer connect subsequent use mouthful, and 2, condenser; 3, expansion valve A, 4, evaporimeter, 5, economizer, 5-1, economizer first import, 5-2, economizer second import; 5-3, economizer first outlet, 5-4, economizer second outlet, 6, check valve, 7, expansion valve B; 8, magnetic valve, 9, hand valve A, 10, hand valve B, 11, liquid-sighting glass.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is done further explain.
Embodiment
As shown in Figure 1, a kind of water-cooled cryogenic refrigeration compressor bank that has economizer and check valve comprises compressor 1, condenser 2, expansion valve A3, evaporimeter 4.
Air exit 1-2 connects condenser 2, expansion valve A3, evaporimeter 4 and suction inlet 1-1 successively, and the bulb of expansion valve A3 is connected between evaporimeter 4 and the suction inlet 1-1.
The outlet of condenser 2 connects the magnetic valve 8 and the first import 5-1 respectively, and magnetic valve 8 is connected with the second import 5-2 through expansion valve B7.
The first outlet 5-3 is connected with said expansion valve A3, and the second outlet 5-4 is connected subsequent use mouthful of 1-3 through check valve 6 and connects with said economizer, and the bulb of expansion valve B7 is connected between the second outlet 5-4 and the check valve 6.
During normal operation, compressor 1 operation, cold-producing medium is back to compressor 1 through condenser 2, economizer 5, expansion valve A3 and evaporimeter 4 successively.When needing to improve efficiency, opens solenoid valve 8, the part cold-producing medium flows into compressor 1 economizer through magnetic valve 8, expansion valve B7, economizer 5 and check valve 6 and is connected subsequent use mouthful of 1-3, is compressor compresses end of a period tonifying Qi, improves the compressor efficiency.When economizer was out of service, check valve 6 prevented that the high-pressure fluid in the compressor from scurrying into low-pressure system, improves the security of whole unit.
Be the situation of cooling fluid in the convenient observation unit, the outlet of condenser 2 connects the magnetic valve 8 and the first import 5-1 respectively through liquid-sighting glass 11.
During normal operation, compressor 1 operation, cold-producing medium is back to compressor 1 through condenser 2, liquid-sighting glass 11, economizer 5, expansion valve A3 and evaporimeter 4 successively.When needing to improve efficiency, opens solenoid valve 8, the part cold-producing medium flows into compressor 1 economizer through magnetic valve 8, expansion valve B7, economizer 5 and check valve 6 and is connected subsequent use mouthful of 1-3.
Be flowing of convenient control cold-producing medium, the operation of the whole unit of convenient control, convenient maintenance.Establish hand valve B10 between air exit 1-2 and the condenser 2.Establish hand valve A9 between condenser 2 and the liquid-sighting glass 11.
The utility model is not limited to the foregoing description, and the technical scheme that all employings are equal to or the equivalence replacement forms all falls into the protection domain that the utility model requires.
Claims (4)
1. water-cooled cryogenic refrigeration compressor bank that has economizer and check valve; It comprises: compressor (1), condenser (2), the expansion valve A (3) that comprises bulb and evaporimeter (4); Compressor (1) is to comprise that suction inlet (1-1), air exit (1-2) are connected the middle temperature helical-lobe compressor of subsequent use mouthful (1-3) with economizer; Air exit (1-2) connects condenser (2), expansion valve A (3), evaporimeter (4) and suction inlet (1-1) successively; The bulb of expansion valve A (3) is connected between evaporimeter (4) and the suction inlet (1-1), it is characterized in that wherein:
---also be provided with economizer (5), check valve (6), the expansion valve B (7) that comprises bulb and the magnetic valve (8) that comprises first import (5-1), second import (5-2), first outlet (5-3) and second outlet (5-4) between said condenser (2), expansion valve A (3) and the economizer connection subsequent use mouthful (1-3);
---the outlet of said condenser (2) connects magnetic valve (8) and first import (5-1) respectively, and magnetic valve (8) is connected with second import (5-2) through expansion valve B (7);
---first outlet (5-3) is connected with said expansion valve A (3); Second outlet (5-4) is connected subsequent use mouthful (1-3) through check valve (6) and connects with said economizer, the bulb of expansion valve B (7) is connected between second outlet (5-4) and the check valve (6).
2. according to the said water-cooled cryogenic refrigeration compressor bank that has economizer and check valve of claim 1, it is characterized in that: the outlet of said condenser (2) connects said magnetic valve (8) and first import (5-1) respectively through liquid-sighting glass (11).
3. according to the said water-cooled cryogenic refrigeration compressor bank that has economizer and check valve of claim 1, it is characterized in that: establish hand valve B (10) between said air exit (1-2) and the condenser (2).
4. according to the said water-cooled cryogenic refrigeration compressor bank that has economizer and check valve of claim 2, it is characterized in that: establish hand valve A (9) between said condenser (2) and the liquid-sighting glass (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203375631U CN202254532U (en) | 2011-09-09 | 2011-09-09 | Water cooling type low-temperature refrigeration compressor set with economizer and one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203375631U CN202254532U (en) | 2011-09-09 | 2011-09-09 | Water cooling type low-temperature refrigeration compressor set with economizer and one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202254532U true CN202254532U (en) | 2012-05-30 |
Family
ID=46115765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203375631U Expired - Fee Related CN202254532U (en) | 2011-09-09 | 2011-09-09 | Water cooling type low-temperature refrigeration compressor set with economizer and one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202254532U (en) |
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2011
- 2011-09-09 CN CN2011203375631U patent/CN202254532U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20120909 |