CN102996406A - External oil cooling device for novel water-cooled type low-temperature refrigerant compressor unit - Google Patents
External oil cooling device for novel water-cooled type low-temperature refrigerant compressor unit Download PDFInfo
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- CN102996406A CN102996406A CN 201110266660 CN201110266660A CN102996406A CN 102996406 A CN102996406 A CN 102996406A CN 201110266660 CN201110266660 CN 201110266660 CN 201110266660 A CN201110266660 A CN 201110266660A CN 102996406 A CN102996406 A CN 102996406A
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Abstract
The invention relates to an external oil cooling device for a novel water-cooled type low-temperature refrigerant compressor unit. The external oil cooling device comprises a compressor (1), an oil cooler (2), an oil pump (3) and a hand valve A (7). The compressor (1) comprises a standby oil inlet (1-1) and a standby oil outlet (1-2), wherein the standby oil outlet (1-2) is sequentially connected with the oil cooler (2), the hand valve A (7), the oil pump (3) and the standby oil inlet (1-1), and a bypass valve (6) is connected between the standby oil outlet (1-2) and the hand valve A (7) in parallel. An oil filter (10) is connected between the oil pump (3) and the hand valve A (7). A flow switch (12) is connected between the oil pump (3) and the standby oil inlet (1-1). A differential pressure switch (13) for detecting differential pressure of an inlet and an outlet of the oil filter (10) is further provided. The external oil cooling device for the novel water-cooled type low-temperature refrigerant compressor unit has the advantages of cooling lubricating oil, removing impurities in the lubricating oil and prolonging the service life.
Description
Technical field
The present invention relates to a kind of thermodynamic cycle device, particularly a kind of Novel external oil cooling device for water-cooled low-temperature refrigeration compressor unit.
Background technique
China Patent Publication No. CN101089518A discloses a kind of air-cooled water-cooled two-evaporimeter hot-water machine group, it has one by compressor, water cooled condenser, air-cooled vaporizer, the refrigeration cycle that the water-cooled vaporizer forms, this loop is provided with controller, compressor connects water cooled condenser by a four-way valve, be connected with on the water cooled condenser into, water outlet, water cooled condenser connects heating power expansion valve, the outlet of heating power expansion valve connects respectively water-cooled vaporizer and air-cooled vaporizer, the water-cooled vaporizer be provided with into, water outlet, the water-cooled vaporizer be connected vaporizer and connect four-way valve, four-way valve connects the refrigerant-cycle systems of compressor.It is mainly not enough: compressor does not have external cooling device, and is stable easily too high; Lubricant in compressor can contain impurity can affect compressor operating.
Summary of the invention
The objective of the invention is for the deficiencies in the prior art, a kind of Novel external oil cooling device for water-cooled low-temperature refrigeration compressor unit that can effectively lower temperature of lubricating oil of compressor with and impurity is provided.
For realizing above-mentioned technical purpose, the present invention is by the following technical solutions: a kind of Novel external oil cooling device for water-cooled low-temperature refrigeration compressor unit, it comprises: compressor, oil cooler, oil pump and hand valve A, compressor is the middle temperature helical-lobe compressor that comprises oil inlet for subsequent use and oil export for subsequent use, oil export for subsequent use connects oil cooler, hand valve A, oil pump and oil inlet for subsequent use successively, wherein:
---bypass valve in parallel also between described oil export for subsequent use and the hand valve A;
---connect oil strainer between described oil pump and the hand valve A;
---connection traffic switch between described oil pump and the oil inlet for subsequent use;
---also distinguish modulating valve in parallel and one-way valve between oil strainer and the flow switch;
---also be provided with the differential pressure switch that detects oil strainer import and outlet pressure reduction.
Further, described oil cooler is water to oil cooler.
Further, establish hand valve C between the oil pump of described oil strainer and parallel connection, modulating valve, the one-way valve.
Further, establish liquid-sighting glass between described oil inlet for subsequent use and the flow switch.
Further, establish hand valve B between described liquid-sighting glass and the flow switch.
After adopting technique scheme, the present invention has following beneficial effect:
(1) adopts oil pump, oil strainer, oil cooler, can effectively reduce the temperature of lubricant in compressor, remove the impurity in the compressor lubricant oil, improve the stability of compressor.Too much when the impurity that oil strainer is heavy, flow of lubrication is excessively low, and compressor lubrication system can't work.At this moment, flow switch starts, and controls whole device out of service.Differential pressure switch detects the pressure reduction of oil strainer import and outlet in real time, and when the impurity in the oil strainer was too much, the change of the pressure reduction of oil strainer import and outlet reached greatly the differential pressure switch setting value, and differential pressure switch starts, and controls whole device out of service.Flow switch and differential pressure switch play double protection to the present invention.
(2) establish liquid-sighting glass, the lubricated oil condition of convenient observation.
(3) establish hand valve B, hand valve C, 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 schematic diagram of the present invention.
Among the figure: 1, compressor, 1-1, oil inlet for subsequent use, 1-2, oil export for subsequent use, 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, 10, oil strainer, 11, hand valve C, 12, flow switch, 13, differential pressure switch.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Embodiment
As shown in Figure 1, a kind of Novel external oil cooling device for water-cooled low-temperature refrigeration compressor unit, 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 oil inlet 1-1 for subsequent use and oil export 1-2 for subsequent use.Oil export 1-2 for subsequent use connects oil cooler 2, hand valve A7, oil pump 3 and oil inlet 1-1 for subsequent use successively.Bypass valve 6 in parallel also between oil export 1-2 for subsequent use and the hand valve A7.Connect oil strainer 10 between oil pump 3 and the hand valve A7.Connection traffic switch 12 between oil pump 3 and the oil inlet 1-1 for subsequent use.Also distinguish modulating valve 4 in parallel and one-way valve 5 between oil strainer 10 and the flow switch 12.Also be provided with the differential pressure switch 13 that detects oil strainer 10 imports and outlet pressure reduction.
During normal operation, hand valve A7 opens, oil pump 3 operations, and compressor 1 interior lubricant oil is back to oil inlet 1-1 for subsequent use by oil cooler 2, hand valve A7, oil strainer 10, oil pump 3 successively.It can effectively reduce the temperature of lubricant in compressor, removes the impurity in the compressor lubricant oil, improves the stability of compressor and whole unit.
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, make things convenient for inspection and maintenance.
The long-time use, the impurity in the lubricant oil can progressively stop up oil strainer 10, and the flow of lubrication of whole device can diminish, and compressor lubrication system can't work.At this moment, flow switch 12 starts, and controls whole device out of service.Thereby it is injury-free to play the protection compressor, prolongs the working life of whole device.
Be the situation of liquid in the convenient observation unit, establish liquid-sighting glass 8 between the oil pump 3 of oil inlet 1-1 for subsequent use and parallel connection, modulating valve 4, one-way valve 5 threes.
Be flowing of convenient control liquid, the operation of the whole unit of convenient control, convenient maintenance.Establish hand valve B9 between liquid-sighting glass 8 and the flow switch 12; Establish hand valve C11 between the oil pump 3 of oil strainer 10 and parallel connection, modulating valve 4, one-way valve 5 threes.
The invention is not restricted to above-described embodiment, the technological scheme that all employings are equal to or the equivalence replacement forms all falls into the protection domain that the present invention requires.
Claims (5)
1. Novel external oil cooling device for water-cooled low-temperature refrigeration compressor unit, 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 oil inlet for subsequent use (1-1) and oil export for subsequent use (1-2), oil export for subsequent use (1-2) connects oil cooler (2), hand valve A(7 successively), oil pump (3) and oil inlet for subsequent use (1-1), it is characterized in that wherein:
---described oil export for subsequent use (1-2) and hand valve A(7) between bypass valve in parallel (6) also;
---described oil pump (3) and hand valve A(7) between connect oil strainer (10);
---connection traffic switch (12) between described oil pump (3) and the oil inlet for subsequent use (1-1);
---also distinguish modulating valve in parallel (4) and one-way valve (5) between oil strainer (10) and the flow switch (12);
---also be provided with the differential pressure switch (13) that detects oil strainer (10) import and outlet pressure reduction.
2. a kind of Novel external oil cooling device for water-cooled low-temperature refrigeration compressor unit according to claim 1, it is characterized in that: described oil cooler (2) is water to oil cooler.
3. a kind of Novel external oil cooling device for water-cooled low-temperature refrigeration compressor unit according to claim 1 is characterized in that: establish hand valve C(11 between the oil pump (3) of described oil strainer (10) and parallel connection, modulating valve (4), the one-way valve (5)).
4. a kind of Novel external oil cooling device for water-cooled low-temperature refrigeration compressor unit according to claim 1 is characterized in that: establish liquid-sighting glass (8) between described oil inlet for subsequent use (1-1) and the flow switch (12).
5. a kind of Novel external oil cooling device for water-cooled low-temperature refrigeration compressor unit according to claim 4 is characterized in that: establish hand valve B(9 between described liquid-sighting glass (8) and the flow switch (12)).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110266660 CN102996406A (en) | 2011-09-09 | 2011-09-09 | External oil cooling device for novel water-cooled type low-temperature refrigerant compressor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110266660 CN102996406A (en) | 2011-09-09 | 2011-09-09 | External oil cooling device for novel water-cooled type low-temperature refrigerant compressor unit |
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| CN102996406A true CN102996406A (en) | 2013-03-27 |
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| CN 201110266660 Pending CN102996406A (en) | 2011-09-09 | 2011-09-09 | External oil cooling device for novel water-cooled type low-temperature refrigerant compressor unit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629078A (en) * | 2013-11-04 | 2014-03-12 | 徐晟伟 | Lubricating oil filtering device for sulfur dioxide compressor |
| CN105299958A (en) * | 2015-11-27 | 2016-02-03 | 重庆通用工业(集团)有限责任公司 | External lubrication oil system of refrigeration compressor |
| WO2016074431A1 (en) * | 2014-11-14 | 2016-05-19 | 珠海格力电器股份有限公司 | Oil temperature control device for compressor, and oil temperature control method |
| CN108895299A (en) * | 2018-06-12 | 2018-11-27 | 苏州加拉泰克动力有限公司 | Oil cooled system system and its circulation controlling means |
-
2011
- 2011-09-09 CN CN 201110266660 patent/CN102996406A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629078A (en) * | 2013-11-04 | 2014-03-12 | 徐晟伟 | Lubricating oil filtering device for sulfur dioxide compressor |
| WO2016074431A1 (en) * | 2014-11-14 | 2016-05-19 | 珠海格力电器股份有限公司 | Oil temperature control device for compressor, and oil temperature control method |
| CN105299958A (en) * | 2015-11-27 | 2016-02-03 | 重庆通用工业(集团)有限责任公司 | External lubrication oil system of refrigeration compressor |
| CN108895299A (en) * | 2018-06-12 | 2018-11-27 | 苏州加拉泰克动力有限公司 | Oil cooled system system and its circulation controlling means |
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Application publication date: 20130327 |