CN202851366U - Opening-type screw rod unit - Google Patents
Opening-type screw rod unit Download PDFInfo
- Publication number
- CN202851366U CN202851366U CN 201220565329 CN201220565329U CN202851366U CN 202851366 U CN202851366 U CN 202851366U CN 201220565329 CN201220565329 CN 201220565329 CN 201220565329 U CN201220565329 U CN 201220565329U CN 202851366 U CN202851366 U CN 202851366U
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- China
- Prior art keywords
- oil
- screw rod
- rod unit
- type screw
- oil pump
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- Withdrawn - After Issue
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Abstract
The utility model provides an opening-type screw rod unit. The screw rod unit comprises two oil pumps, a control valve and refined oil filters, wherein the two oil pumps are connected in parallel to form two oil pump branches; first ends of the two oil pump branches are connected to an inlet of an oil separator and are communicated with a compressor, and second ends of the two oil pump branches are connected to coarse oil filters and are communicated with an oil cooler; the control valve is connected to the two oil pump branches and selectively stops one of the two oil pump branches; the first ends of the coarse oil filters are communicated with an oil outlet of the oil separator, and the second ends of the coarse oil filters are communicated with the oil cooler and the second ends of the oil pumps; the first ends of the refined oil filters are communicated with the coarse oil filters or the oil cooler, and the second ends of the refined oil filters are communicated with the compressor; and the compressor is communicated with an air inlet of an oil separator. According to the opening-type screw rod unit disclosed by the utility model, the two parallel oil pumps are arranged in case of emergency and are respectively arranged on different branches; and when the oil pumps are damaged or overhauled, check valves in front and at back of the pumps are stopped to to replace or maintain the oil pumps, the operation of the unit is not influenced, and thus the working efficiency is improved.
Description
Technical field
The utility model relates to field of air conditioning, especially, relates to a kind of opening type screw rod unit.
Background technique
Screw type refrigerating compressor is subjected to user's favor deeply because its refrigerating capacity is large, the coefficient of performance of refrigerating advantages of higher.The large-scale screw type refrigerating compressor of this product bearing portions that adopt external oil circulating system to guarantee screw type refrigerating compressor lubricated more, pressing chamber seals and the normal operation of air-conditioning system, oil circuit designs improper meeting and causes compressor abrasion, damage, the design of circulating oil path directly affects the reliability of unit.
In the existing design, the general scheme that adopts of the fuel feeding scheme of screw type refrigerating compressor has following defective:
1. because the operating life of oil pump oil sealing is shorter; replacing can not cause system refrigerant and oily leakage on schedule; therefore oil pump is not suitable for long-term operation; need periodic replacement; and oil pump commonly used in the prior art; if oil pump damages, unit then must be shut down, and this can bring very large impact to the client.
2. adopt an oily coarse-grain filtering device or an olein filter, more must shut down during renew cartridge, be unfavorable for client's use.
If 3. cleanliness is inadequate in the oil content, may cause oil cooler (plate type heat exchanger) dirty stifled.
4. to the oil temperature supplying of compressor with working conditions change, stable not, the working life that can reduce compressor.
5. the olein filter is dirty when stifled, causes for shortage of oil, damages compressor.
When 6. oil pump transships, damage oil pump.
The model utility content
The utility model purpose is to provide a kind of opening type screw rod unit, damages to solve oil pump, and unit then must be shut down the technical problem of repairing.
For achieving the above object, the utility model provides a kind of opening type screw rod unit, comprise two oil pumps, and be unified into two oil pump branch roads, the first end of two oil pump branch roads is connected to the import of oil separator and is connected with compressor, and the second end is connected to oily coarse-grain filtering device and is connected with oil cooler; Control valve is connected on two oil pump branch roads, optionally makes a cut-off in two oil pump branch roads; The first end of oil coarse-grain filtering device is connected with the oil outlet of oil separator, and the second end of oily coarse-grain filtering device is connected with the second end of oil cooler and oil pump; The olein filter, first end is connected with oily coarse-grain filtering device or oil cooler, and the second end is connected with compressor; Compressor is connected with the suction port of oil separator.
Further, oily coarse-grain filtering device is two, and is unified into two oily coarse filtration branch roads, and two oily coarse filtration branch road two ends concourses and/or branch road two ends are provided with control valve.
Further, the olein filter is two, and is unified into two olein and filters branch roads, and two olein filter branch road two ends concourse and/or the branch road two ends are provided with control valve.
Further, opening type screw rod unit also comprises temperature transducer, is arranged between olein filter and the compressor.
Further, opening type screw rod unit also comprises pressure transducer, is arranged on the two ends of olein filter.
Further, opening type screw rod unit also comprises Decompression valves, is arranged in parallel with two oil pumps.
Further, opening type screw rod unit also comprises the oil temperature modulating valve, comprises the first input end that is connected with oily coarse-grain filtering device, the second input end that is connected with oil cooler and the output terminal that is connected with compressor.
Further, control valve is two stop valves, is separately positioned in two oil pump branch roads, and lays respectively at the two ends of corresponding oil pump.
Further, control valve is two tee ball valves, is separately positioned on two concourses of two oil pump branch roads.
The utlity model has following beneficial effect:
The utility model arranges two oil pumps that are arranged in parallel, and in order to a usefulness, two oil pumps are separately positioned on the different branch roads, when oil pump damages or overhauls, the stop valve before and after the pump is cut extremely, change or keep in repair, do not affect the operation of unit, improved working efficiency.
Except purpose described above, feature and advantage, the utility model also has other purpose, feature and advantage.The below is described in further detail the utility model with reference to figure.
Description of drawings
The accompanying drawing that consists of the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the oil circuit schematic representation according to the first embodiment's of the present utility model opening type screw rod unit;
Fig. 2 is to be the stop valve schematic representation according to control valve in the oil circuit of the second embodiment's of the present utility model opening type screw rod unit; And
Fig. 3 is to be the tee ball valve schematic representation according to control valve in the oil circuit of the 3rd embodiment's of the present utility model opening type screw rod unit.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Referring to Fig. 1 to Fig. 3, according to opening type screw rod unit of the present utility model, comprise two oil pumps 10, and be unified into two oil pump branch roads, the first end of two oil pump branch roads is connected to the import of oil separator 70 and is connected with compressor 60, and the second end is connected to oily coarse-grain filtering device 20 and is connected with oil cooler 120; Control valve is connected on two oil pump branch roads, optionally makes a cut-off in two oil pump branch roads; The first end of oil coarse-grain filtering device 20 is connected with the oil outlet of oil separator 70, and the second end of oily coarse-grain filtering device 20 is connected with the second end of oil cooler 120 and oil pump 10; Olein filter 30, first end is connected with oily coarse-grain filtering device 20 or oil cooler 120, and the second end is connected with compressor 60; Compressor 60 is connected with the suction port of oil separator 70.The utility model arranges two oil pumps that are arranged in parallel, and in order to a usefulness, two oil pumps are separately positioned on the different branch roads, when oil pump damages or overhauls, the stop valve before and after the pump is cut extremely, change or keep in repair, do not affect the operation of unit, improved working efficiency.
Referring to Fig. 1, oily coarse-grain filtering device 20 is two, and is unified in two oily coarse filtration branch roads, and two oily coarse filtration branch road two ends concourses and/or branch road two ends are provided with control valve.Olein filter 30 is two, and is unified into two olein and filters in the branch roads, and two olein filter branch road two ends concourse and/or the branch road two ends are provided with control valve.Two thick oil strainers 20 and two essential oil filter 30 can guarantee in non-stop-machine situation, change the filter core of oil strainer, save engineering time, raise the efficiency.Simultaneously thick oil strainer 20 had guaranteed to enter the cleanliness of oil cooler 120 plate type heat exchanger refrigerants before oil cooler 120 plate type heat exchangers, prevent dirty stifled generation.
Referring to Fig. 1, opening type screw rod unit also comprises temperature transducer 80, is arranged between olein filter 30 and the compressor 60.
Referring to Fig. 1, opening type screw rod unit also comprises pressure transducer 90, is arranged on the two ends of olein filter 30.Control gear judges automatically by detecting olein filter 30 front and back pressure reduction, and more whether renew cartridge is when essential oil filter 30 front and back pressure reduction that detect during greater than setting value, need this moment renew cartridge more.
Referring to Fig. 1, opening type screw rod unit also comprises Decompression valves 50, is arranged in parallel with two oil pumps 10.When if oil pump 10 will transship; be that pressure reduction is excessive before and after the oil pump; at this moment; when the pressure reduction of Decompression valves 30 front and back arrived setting value, Decompression valves 30 can be opened, and liquid can be flowed to the low pressure place by the high pressure place of oil pump 10 by Decompression valves 50; pressure reduction before and after reducing; protection oil pump 10 prevents the oil pump overload, causes oil pump 10 to damage.
Referring to Fig. 1, opening type screw rod unit also comprises oil temperature modulating valve 40, comprises the first input end that is connected with oily coarse-grain filtering device 20, the second input end that is connected with oil cooler 120 and the output terminal that is connected with compressor 60.Oil temperature modulating valve 40 guarantees to the oil temperature of compressor 60 fuel feeding stable, and when higher or low in temperature, the mixed proportion of adjusting oil temperature modulating valve 40 and then regulating deep fat and cold oil has guaranteed to the oil temperature of compressor 60 fuel feeding stable.
Referring to Fig. 1, according to the first embodiment of the present utility model, control valve is that stop valve 110 and tee ball valve 100 use simultaneously, stop valve 110 is arranged on the two ends of oil pump 10, oily coarse-grain filtering device 20 or olein filter 30, and tee ball valve 100 is arranged on the concourse at the two ends that are separately positioned on two oil pumps 10, oily coarse-grain filtering device 20 or olein filter 30 branch roads.In the time will changing a certain oil pump 10, oily coarse-grain filtering device 20 or olein filter 30, as long as the stop valve 110 at its two ends closed or the tee ball valve 100 at its two ends turned to another branch road, can change oil pump 10, oily coarse-grain filtering device 20 or olein filter 30, can not affect the operation of system.
Referring to Fig. 2, according to the second embodiment of the present utility model, control valve is stop valve 110, be separately positioned in two oil pumps 10, oily coarse-grain filtering device 20 or olein filter 30 branch roads, and lay respectively at the two ends of corresponding oil pump 10, oily coarse-grain filtering device 20 or olein filter 30, in the time will changing a certain oil pump 10, oily coarse-grain filtering device 20 or olein filter 30, as long as the stop valve 110 at its two ends is closed, can to the replacing of oil pump 10, oily coarse-grain filtering device 20 or olein filter 30, can not affect the operation of system.
Referring to Fig. 3, according to the 3rd embodiment of the present utility model, control valve is two tee ball valves 100, be separately positioned on the concourse at the two ends of two oil pumps 10, oily coarse-grain filtering device 20 or olein filter 30 branch roads, in the time will changing a certain oil pump 10, oily coarse-grain filtering device 20 or olein filter 30, as long as the tee ball valve 100 at its two ends is turned to another branch road, can to the replacing of oil pump 10, oily coarse-grain filtering device 20 or olein filter 30, can not affect the operation of system.
Referring to Fig. 1, after compressor 60 exhausts entered oil separator, the oil after the separation at first carried out the first time through oily coarse-grain filtering device and filters, pass through afterwards the heat exchange of hydrocone type oil cooler plate type heat exchanger, through oil pump, enter into the essential oil filter afterwards, carry out the second time and filter, return at last compressor.
As can be seen from the above description, the utility model the above embodiments have realized following technique effect:
The utility model arranges two oil pumps that are arranged in parallel, and in order to a usefulness, two oil pumps are separately positioned on the different branch roads, when oil pump damages or overhauls, the stop valve before and after the pump is cut extremely, change or keep in repair, do not affect the operation of unit, improved working efficiency.
Be preferred embodiment of the present utility model only below, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (9)
1. an opening type screw rod unit is characterized in that, comprising:
Two oil pumps (10), and be unified into two oil pump branch roads, the first end of two described oil pump branch roads is connected to the import of oil separator (70) and is connected with compressor (60), and the second end is connected to oily coarse-grain filtering device (20) and is connected with oil cooler (120);
Control valve is connected on described two oil pump branch roads, optionally makes a cut-off in two described oil pump branch roads;
The first end of described oily coarse-grain filtering device (20) is connected with the oil outlet of described oil separator (70), and the second end of described oily coarse-grain filtering device (20) is connected with the second end of oil cooler (120) and described oil pump (10);
Olein filter (30), first end is connected with described oily coarse-grain filtering device (20) or described oil cooler (120), and the second end is connected with described compressor (60);
Described compressor (60) is connected with the suction port of described oil separator (70).
2. opening type screw rod unit according to claim 1 is characterized in that, described oily coarse-grain filtering device (20) is two, and is unified into two oily coarse filtration branch roads, and two described oily coarse filtration branch road two ends concourses and/or branch road two ends are provided with control valve.
3. opening type screw rod unit according to claim 1 is characterized in that, described olein filter (30) is two, and is unified into two olein and filters branch roads, and two described olein filter branch road two ends concourse and/or the branch road two ends are provided with control valve.
4. opening type screw rod unit according to claim 1 is characterized in that, also comprises temperature transducer (80), is arranged between described olein filter (30) and the described compressor (60).
5. opening type screw rod unit according to claim 1 is characterized in that, also comprises pressure transducer (90), is arranged on the two ends of described olein filter (30).
6. opening type screw rod unit according to claim 1 is characterized in that, also comprises Decompression valves (50), is arranged in parallel with two described oil pumps (10).
7. opening type screw rod unit according to claim 1, it is characterized in that, also comprise oil temperature modulating valve (40), comprise the first input end that is connected with described oily coarse-grain filtering device (20), the second input end that is connected with described oil cooler (120) and the output terminal that is connected with described compressor (60).
8. opening type screw rod unit according to claim 1 is characterized in that, described control valve is two stop valves (110), is separately positioned in two described oil pump branch roads, and lays respectively at the two ends of corresponding described oil pump (10).
9. opening type screw rod unit according to claim 1 is characterized in that, described control valve is two tee ball valves (100), is separately positioned on two concourses of two described oil pump branch roads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220565329 CN202851366U (en) | 2012-10-30 | 2012-10-30 | Opening-type screw rod unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220565329 CN202851366U (en) | 2012-10-30 | 2012-10-30 | Opening-type screw rod unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851366U true CN202851366U (en) | 2013-04-03 |
Family
ID=47982573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220565329 Withdrawn - After Issue CN202851366U (en) | 2012-10-30 | 2012-10-30 | Opening-type screw rod unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851366U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103790829A (en) * | 2012-10-30 | 2014-05-14 | 珠海格力电器股份有限公司 | Open-type screw set |
| CN106351697A (en) * | 2016-10-21 | 2017-01-25 | 西安琦通新能源设备有限公司 | Natural gas pressure energy recycling expansion power generation and cold energy utilization system |
-
2012
- 2012-10-30 CN CN 201220565329 patent/CN202851366U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103790829A (en) * | 2012-10-30 | 2014-05-14 | 珠海格力电器股份有限公司 | Open-type screw set |
| CN103790829B (en) * | 2012-10-30 | 2016-08-24 | 珠海格力电器股份有限公司 | Open-type Screw chiller |
| CN106351697A (en) * | 2016-10-21 | 2017-01-25 | 西安琦通新能源设备有限公司 | Natural gas pressure energy recycling expansion power generation and cold energy utilization system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130403 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |