CN202228312U - External oil cooling device for water-cooled type low-temperature refrigeration compressor - Google Patents
External oil cooling device for water-cooled type low-temperature refrigeration compressor Download PDFInfo
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- CN202228312U CN202228312U CN2011203376812U CN201120337681U CN202228312U CN 202228312 U CN202228312 U CN 202228312U CN 2011203376812 U CN2011203376812 U CN 2011203376812U CN 201120337681 U CN201120337681 U CN 201120337681U CN 202228312 U CN202228312 U CN 202228312U
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Abstract
The utility model relates to a thermal circuit device, in particular to an external oil cooling device for a water-cooled type low-temperature refrigeration compressor, which comprises a compressor (1), an oil cooler (2), an oil pump (3), a regulation valve (4), a check valve (5) and a hand valve A (7). The compressor (1) is a middle-temperature screw compressor comprising a spare oil inlet (1-1) and a spare oil outlet (1-2), wherein the spare oil outlet (1-2) is sequentially connected with the oil cooler (2), the hand valve A (7), the oil pump (3) and the spare oil inlet (1-1), a bypass valve (6) is in parallel connection between the spare oil outlet (1-2) and the hand valve A (7), and the regulation valve (4) and the check valve (5) are in parallel connection between the hand valve A (7) and the spare oil inlet (1-1).
Description
Technical field
The utility model relates to a kind of thermodynamic cycle device, and particularly a kind of water-cooled cryogenic refrigeration compressor bank is used external oil cooler.
Background technique
The compression process of helical-lobe compressor is unidirectional, and when rotor rotated, refrigerant vapor was compressed in the teeth groove of phase interlock and is transported to corresponding compression volume bottom.In this stage, be accompanied by the continuous decrease of element volume, refrigerant vapor is compressed to condensing pressure from pressure of inspiration(Pi).
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 vaporizer, water-cooled vaporizer, and this loop is provided with controller, and compressor connects water cooled condenser through a four-way 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 vaporizer and air-cooled vaporizer respectively, and the water-cooled vaporizer is provided with entery and delivery port; The water-cooled vaporizer is connected four-way valve with air-cooled vaporizer, and four-way valve connects the refrigerant-cycle systems of compressor.It is mainly not enough: compressor does not have external cooling unit, and temperature is too high easily, cause working stability not enough.
Summary of the invention
The purpose of the utility model is the deficiency to existing technology, provides a kind of water-cooled cryogenic refrigeration compressor bank that can effectively lower temperature of lubricating oil of compressor with to use external oil cooler.
For realizing above-mentioned technical purpose; The utility model adopts following technological scheme: a kind of water-cooled cryogenic refrigeration compressor bank is used external oil cooler; It comprises: compressor, oil cooler, oil pump and hand valve A; Compressor is the middle temperature helical-lobe compressor that comprises subsequent use oil inlet and subsequent use oil export, and subsequent use oil export connects oil cooler, hand valve A, oil pump and subsequent use oil inlet successively, wherein:
---also parallelly connected bypass valve between said subsequent use oil export and the hand valve A;
---also distinguish parallelly connected modulating valve and one-way valve between said hand valve A and the subsequent use oil inlet.
Further, said oil cooler is a water to oil cooler.
Further, establish liquid-sighting glass between the oil pump of said subsequent use oil inlet and parallel connection, modulating valve, the one-way valve.
Further, establish hand valve B between the oil pump of said liquid-sighting glass and parallel connection, modulating valve, the one-way valve.
After adopting technique scheme, the utlity model has following beneficial effect:
(1) adopts oil pump and oil cooler, can effectively reduce the temperature of lubricant oil in the compressor, improve the stability of compressor.
(2) establish liquid-sighting glass, the lubricated oil condition of convenient observation.
(3) establish hand valve B, the operation of the whole unit of convenient control, convenient maintenance.
(4) adopt water to oil cooler, further improve cooling effect.
Description of drawings
Fig. 1 is the schematic representation of the utility model.
Among the figure: 1, compressor, 1-1, subsequent use oil inlet, 1-2, subsequent use oil export, 2, oil cooler, 3, oil pump, 4, modulating valve, 5, one-way valve, 6, bypass valve, 7, hand valve A, 8, liquid-sighting glass, 9, hand valve B.
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 is used external oil cooler, and it comprises: compressor 1, oil cooler 2, oil pump 3 and hand valve A7.Compressor 1 is the middle temperature helical-lobe compressor that comprises subsequent use oil inlet 1-1 and subsequent use oil export 1-2.Subsequent use oil export 1-2 connects oil cooler 2, hand valve A7, oil pump 3 and subsequent use oil inlet 1-1 successively.Also parallelly connected bypass valve 6 between subsequent use oil export 1-2 and the hand valve A7.Also distinguish parallelly connected modulating valve 4 and one-way valve 5 between hand valve A7 and the subsequent use oil inlet 1-1.
During proper functioning, hand valve A7 opens, oil pump 3 operations, and lubricant oil is back to subsequent use oil inlet 1-1 through oil cooler 2, hand valve A7, oil pump 3 successively in the compressor 1.
One-way valve 5 prevents that lubricant oil from flowing backwards.Modulating valve 4, bypass valve 6 can change the mobility status of lubricant oil, convenient maintenance and maintenance.
For the situation of liquid in the convenient observation unit, establish liquid-sighting glass 8 between the oil pump 3 of subsequent use oil inlet 1-1 and parallel connection, modulating valve 4, one-way valve 5 threes.
During proper functioning, hand valve A7 opens, oil pump 3 operations, and lubricant oil is back to subsequent use oil inlet 1-1 through oil cooler 2, hand valve A7, oil pump 3, liquid-sighting glass 8 successively in the compressor 1.
For making things convenient for flowing of controlling liquid, the operation of the whole unit of convenient control, convenient maintenance.Establish hand valve B9 between the oil pump 3 of liquid-sighting glass 8 and parallel connection, modulating valve 4, one-way valve 5 threes.
For improving the effect of oil cooler 2, oil cooler 2 preferred waters to oil cooler.Further improve cooling effect.
The utility model is not limited to the foregoing description, and the technological 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. a water-cooled cryogenic refrigeration compressor bank is used external oil cooler; It comprises: compressor (1), oil cooler (2), oil pump (3) and hand valve A (7); Compressor (1) is the middle temperature helical-lobe compressor that comprises subsequent use oil inlet (1-1) and subsequent use oil export (1-2); Subsequent use oil export (1-2) connects oil cooler (2), hand valve A (7), oil pump (3) and subsequent use oil inlet (1-1) successively, it is characterized in that wherein:
---also parallelly connected bypass valve (6) between said subsequent use oil export (1-2) and the hand valve A (7);
---also distinguish parallelly connected modulating valve (4) and one-way valve (5) between said hand valve A (7) and the subsequent use oil inlet (1-1).
2. water-cooled cryogenic refrigeration compressor bank according to claim 1 is used external oil cooler, it is characterized in that: said oil cooler (2) is a water to oil cooler.
3. water-cooled cryogenic refrigeration compressor bank according to claim 1 is used external oil cooler, it is characterized in that: establish liquid-sighting glass (8) between the oil pump (3) of said subsequent use oil inlet (1-1) and parallel connection, modulating valve (4), the one-way valve (5).
4. water-cooled cryogenic refrigeration compressor bank according to claim 3 is used external oil cooler, it is characterized in that: establish hand valve B (9) between the oil pump (3) of said liquid-sighting glass (8) and parallel connection, modulating valve (4), the one-way valve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203376812U CN202228312U (en) | 2011-09-09 | 2011-09-09 | External oil cooling device for water-cooled type low-temperature refrigeration compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203376812U CN202228312U (en) | 2011-09-09 | 2011-09-09 | External oil cooling device for water-cooled type low-temperature refrigeration compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202228312U true CN202228312U (en) | 2012-05-23 |
Family
ID=46078899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203376812U Expired - Fee Related CN202228312U (en) | 2011-09-09 | 2011-09-09 | External oil cooling device for water-cooled type low-temperature refrigeration compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202228312U (en) |
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2011
- 2011-09-09 CN CN2011203376812U patent/CN202228312U/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: 20120523 Termination date: 20120909 |