CN103790829B - Open-type Screw chiller - Google Patents
Open-type Screw chiller Download PDFInfo
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- CN103790829B CN103790829B CN201210425937.4A CN201210425937A CN103790829B CN 103790829 B CN103790829 B CN 103790829B CN 201210425937 A CN201210425937 A CN 201210425937A CN 103790829 B CN103790829 B CN 103790829B
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Abstract
The invention provides a kind of open-type Screw chiller, including two oil pumps, and it being unified into two oil pump branch roads, the first end of two oil pump branch roads is connected to the import of oil eliminator and is connected with compressor, and the second end is connected to oil coarse filter 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；First end of oil coarse filter is connected with the oil-out of oil eliminator, and oil the second end of coarse filter is connected with the second end of oil cooler and oil pump；Olein filter, the first end is connected with oil coarse filter or oil cooler, and the second end is connected with compressor；Compressor is connected with the air inlet of oil eliminator.The present invention arranges two oil pumps being arranged in parallel, in case a use, two oil pumps are separately positioned on different branch roads, when oil pump damages or overhauls, is cut extremely by the stop valve before and after pump, is replaced or keeps in repair, do not affect the operation of unit, improve work efficiency.
Description
Technical field
The present invention relates to field of air conditioning, especially, relate to a kind of open-type Screw chiller.
Background technology
Screw type refrigerating compressor, owing to its refrigerating capacity is big, coefficient of performance of refrigerating advantages of higher, is favored by user deeply.This product
The large-scale screw type refrigerating compressor external oil circulating system of many employings ensure screw type refrigerating compressor bearing portion lubrication,
Discharge chambe seals and the normal work of air conditioning system, and oil circuit designs improper meeting and causes compressor abrasion, damage, setting of circulating oil path
Meter, directly affects the reliability of unit.
In existing design, the scheme that the fuel feeding scheme of screw type refrigerating compressor typically uses has a following defect:
1. shorter due to the working life of oil pump oil sealing, replacing can cause system refrigerant and the leakage of oil, therefore oil pump the most on schedule
Being not suitable for operating for a long time, need periodic replacement, and commonly use an oil pump in prior art, if oil pump damages, unit is the most necessary
Shutting down, this can bring the biggest impact to client.
2. use an oily coarse filter or an olein filter, must shut down when changing filter element, be unfavorable for the use of client.
If 3. cleanliness factor is inadequate in oil point, it is likely to result in oil cooler (plate type heat exchanger) dirty stifled.
4. to the oil temperature supplying of compressor with working conditions change, it is not sufficiently stable, the service life of compressor can be reduced.
5. olein filter dirty stifled time, cause for shortage of oil, damage compressor.
6., during oil pump overload, oil pump is damaged.
Summary of the invention
Present invention aim at providing a kind of open-type Screw chiller, to solve oil pump damage, unit then must shut down the skill of repairing
Art problem.
For achieving the above object, the invention provides a kind of open-type Screw chiller, including two oil pumps, and be unified into two oil pumps
Branch road, the first end of two oil pump branch roads is connected to the import of oil eliminator and is connected with compressor, and it is thick that the second end is connected to oil
Filter is also connected with oil cooler；Control valve, is connected on two oil pump branch roads, optionally makes in two oil pump branch roads
A cut-off；First end of oil coarse filter is connected with the oil-out of oil eliminator, and the second end of oil coarse filter is cold with oil
But device is connected with the second end of oil pump；Olein filter, the first end is connected with oil coarse filter or oil cooler, the second end
It is connected with compressor；Compressor is connected with the air inlet of oil eliminator.
Further, oil coarse filter is two, and is unified into two oily coarse filtration branch roads, and two oily coarse filtration branch road two ends are converged
Place and/or branch road two ends are provided with control valve.
Further, olein filter is two, and is unified into two olein filtration branch roads, and two olein filter branch road two ends and converge
Place and/or branch road two ends are provided with control valve.
Further, open-type Screw chiller also includes temperature sensor, is arranged between olein filter and compressor.
Further, open-type Screw chiller also includes pressure transducer, is arranged on the two ends of olein filter.
Further, open-type Screw chiller also includes relief valve, is arranged in parallel with two oil pumps.
Further, open-type Screw chiller also includes that oil temperature regulates valve, including the first input end being connected with oily coarse filter,
The second input being connected with oil cooler and the outfan being connected with compressor.
Further, control valve is two stop valves, is separately positioned in two oil pump branch roads, and lays respectively at corresponding oil pump
Two ends.
Further, control valve is two tee ball valves, is separately positioned on two meets of two oil pump branch roads.
The method have the advantages that
The present invention arranges two oil pumps being arranged in parallel, a preparation and a use, and two oil pumps are separately positioned on different branch roads, work as oil
When pump damages or overhauls, the stop valve before and after pump is cut extremely, is replaced or keeps in repair, do not affect the operation of unit, improve
Work efficiency.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.Below
Will be with reference to figure, the present invention is further detailed explanation.
Accompanying drawing explanation
The accompanying drawing of the part constituting the application is used for providing a further understanding of the present invention, the illustrative examples of the present invention and
Its explanation is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the oil circuit schematic diagram of the open-type Screw chiller according to the first embodiment of the present invention；
Fig. 2 be open-type Screw chiller according to the second embodiment of the present invention oil circuit in control valve be stop valve schematic diagram；With
And
Fig. 3 be open-type Screw chiller according to the third embodiment of the invention oil circuit in control valve be tee ball valve schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the present invention can be defined by the claims and cover
Multitude of different ways implement.
See Fig. 1 to Fig. 3, according to the open-type Screw chiller of the present invention, including two oil pumps 10, and be unified into two oil pumps and prop up
Road, the first end of two oil pump branch roads is connected to the import of oil eliminator 70 and is connected with compressor 60, and the second end is connected to
Oil coarse filter 20 is also connected with oil cooler 120；Control valve, is connected on two oil pump branch roads, optionally makes two
A cut-off in oil pump branch road；Oil the first end of coarse filter 20 is connected with the oil-out of oil eliminator 70, oil coarse filtration
Second end of device 20 is connected with the second end of oil cooler 120 and oil pump 10；Olein filter 30, the first end and the thick mistake of oil
Filter 20 or oil cooler 120 are connected, and the second end is connected with compressor 60；Compressor 60 enters with oil eliminator 70
QI KOU is connected.The present invention arranges two oil pumps being arranged in parallel, a preparation and a use, and two oil pumps are separately positioned on different branch roads
On, when oil pump damages or overhauls, the stop valve before and after pump is cut extremely, is replaced or keeps in repair, do not affect the operation of unit,
Improve work efficiency.
Seeing Fig. 1, oil coarse filter 20 is two, and is unified in two oily coarse filtration branch roads, two oily coarse filtration branch road two ends
Meet and/or branch road two ends are provided with control valve.Olein filter 30 is two, and is unified in two olein filtration branch roads,
Two olein filtration branch road two ends meets and/or branch road two ends are provided with control valve.Double crude oil filters 20 and double quintessence oil filter
Device 30 can ensure that in the case of non-stop-machine, the filter element of more oil filter, saves maintenance time, improves efficiency.The thickest
Oil strainer 20 is before oil cooler 120 plate type heat exchanger, it is ensured that enter the clean of oil cooler 120 plate type heat exchanger coolant
Cleanliness, prevents dirty stifled generation.
Seeing Fig. 1, open-type Screw chiller also includes temperature sensor 80, be arranged on olein filter 30 and compressor 60 it
Between.
Seeing Fig. 1, open-type Screw chiller also includes pressure transducer 90, is arranged on the two ends of olein filter 30.Control dress
Put by pressure reduction before and after detection olein filter 30, automatically judge, if filter element should be changed when the quintessence oil filtration detected
When before and after device 30, pressure reduction is more than setting value, now need to change filter element.
Seeing Fig. 1, open-type Screw chiller also includes relief valve 50, is arranged in parallel with two oil pumps 10.If oil pump 10 will
Time to be transshipped, i.e. before and after oil pump, pressure reduction is excessive, now, when the pressure reduction before and after relief valve 30 arrives setting value, and relief valve 30 meeting
Opening, liquid can be flowed by the high pressure of oil pump 10 by relief valve 50 at low pressure, and pressure reduction before and after reduction protects oil pump 10,
Prevent oil pump from transshipping, cause oil pump 10 to damage.
Seeing Fig. 1, open-type Screw chiller also includes that oil temperature regulates valve 40, including the first input being connected with oil coarse filter 20
Hold the second input being connected with oil cooler 120 and the outfan being connected with compressor 60.Oil temperature regulation valve 40 ensures
Stable to the oil temperature of compressor 60 fuel feeding, when temperature is higher or lower, adjust oil temperature regulation valve 40 and then regulation deep fat and cold
The mixed proportion of oil, it is ensured that stable to the oil temperature of compressor 60 fuel feeding.
Seeing Fig. 1, according to the first embodiment of the present invention, control valve is stop valve 110 and tee ball valve 100 uses simultaneously, cuts
Only valve 110 is arranged on oil pump 10, oil coarse filter 20 or the two ends of olein filter 30, and tee ball valve 100 is arranged on respectively
It is arranged on the meet at the two ends of two oil pumps 10, oil coarse filter 20 or olein filter 30 branch road.When to change a certain oil
When pump 10, oil coarse filter 20 or olein filter 30, as long as the stop valve 110 at its two ends is closed or by the three of its two ends
Pass ball valve 100 turns to another branch road, can change oil pump 10, oil coarse filter 20 or olein filter 30, not interfere with
The operation of system.
Seeing Fig. 2, according to the second embodiment of the present invention, control valve is stop valve 110, is separately positioned on two oil pumps 10, oil
In coarse filter 20 or olein filter 30 branch road, and lay respectively at corresponding oil pump 10, oil coarse filter 20 or olein filtration
The two ends of device 30, when to change a certain oil pump 10, oil coarse filter 20 or olein filter 30, if cutting its two ends
Only valve 110 cuts out, and oil pump 10, oil coarse filter 20 or the replacing of olein filter 30 can not interfered with the fortune of system
OK.
Seeing Fig. 3, according to the third embodiment of the invention, control valve is two tee ball valves 100, is separately positioned on two oil pumps
10, the meet at the two ends of oil coarse filter 20 or olein filter 30 branch road, when to change a certain oil pump 10, oil coarse filtration
When 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 be to oil pump 10, oil
Coarse filter 20 or the replacing of olein filter 30, do not interfere with the operation of system.
Seeing Fig. 1, after compressor 60 aerofluxus enters oil eliminator, the oil after separation first passes around oil coarse filter to be carried out for the first time
Filter, afterwards through hydrocone type oil cooler plate type heat exchanger heat exchange, afterwards through oil pump, enter into quintessence oil filter, enter
Row second time filters, and finally returns to compressor.
As can be seen from the above description, the above embodiments of the present invention achieve following technique effect:
The present invention arranges two oil pumps being arranged in parallel, a preparation and a use, and two oil pumps are separately positioned on different branch roads, work as oil
When pump damages or overhauls, the stop valve before and after pump is cut extremely, is replaced or keeps in repair, do not affect the operation of unit, improve
Work efficiency.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art,
The present invention can have various modifications and variations.All within the spirit and principles in the present invention, any amendment of being made, equivalent,
Improve, should be included within the scope of the present invention.
Claims (9)
1. an open-type Screw chiller, it is characterised in that including:
Two oil pumps (10), and it is unified into two oil pump branch roads, the first end of said two oil pump branch road is connected to oil eliminator
(70) import is also connected with compressor (60), and the second end is connected to oil coarse filter (20) and oil cooler
(120) it is connected；
Control valve, is connected on said two oil pump branch road, optionally makes a cut-off in two described oil pump branch roads；
First end of described oil coarse filter (20) is connected with the oil-out of described oil eliminator (70), and described oil is thick
Second end of filter (20) is connected with the second end and the described oil cooler (120) of described oil pump (10)；
Olein filter (30), the first end is connected with described oil coarse filter (20) or described oil cooler (120),
Second end is connected with described compressor (60)；
Described compressor (60) is connected with the air inlet of described oil eliminator (70).
Open-type Screw chiller the most according to claim 1, it is characterised in that described oil coarse filter (20) is two,
And it being unified into two oily coarse filtration branch roads, said two oil coarse filtration branch road two ends meet and/or branch road two ends are provided with control
Valve processed.
Open-type Screw chiller the most according to claim 1, it is characterised in that described olein filter (30) is two,
And it being unified into two olein filtration branch roads, said two olein filters branch road two ends meet and/or branch road two ends are provided with control
Valve processed.
Open-type Screw chiller the most according to claim 1, it is characterised in that also include temperature sensor (80), be arranged on
Between described olein filter (30) and described compressor (60).
Open-type Screw chiller the most according to claim 1, it is characterised in that also include pressure transducer (90), be arranged on
The two ends of described olein filter (30).
Open-type Screw chiller the most according to claim 1, it is characterised in that also include relief valve (50), with said two
Oil pump (10) is arranged in parallel.
Open-type Screw chiller the most according to claim 1, it is characterised in that also include oil temperature regulation valve (40), described oil
Temperature regulation valve (40) includes first input end and the described oil cooler (120) being connected with described oil coarse filter (20)
The second input connected and the outfan being connected with described compressor (60).
Open-type Screw chiller the most according to claim 1, it is characterised in that described control valve is two stop valves (110),
It is separately positioned in said two oil pump branch road, and lays respectively at the two ends of corresponding described oil pump (10).
Open-type Screw chiller the most according to claim 1, it is characterised in that described control valve is two tee ball valves (100),
It is separately positioned on two meets of said two oil pump branch road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210425937.4A CN103790829B (en) | 2012-10-30 | 2012-10-30 | Open-type Screw chiller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210425937.4A CN103790829B (en) | 2012-10-30 | 2012-10-30 | Open-type Screw chiller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103790829A CN103790829A (en) | 2014-05-14 |
| CN103790829B true CN103790829B (en) | 2016-08-24 |
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ID=50666797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210425937.4A Active CN103790829B (en) | 2012-10-30 | 2012-10-30 | Open-type Screw chiller |
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| Country | Link |
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| CN (1) | CN103790829B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269537A (en) * | 2017-06-12 | 2017-10-20 | 苏州强时压缩机有限公司 | Secondary oil return block-proof type air compressor |
| CN110671326A (en) * | 2019-11-13 | 2020-01-10 | 山东钜容重工科技有限公司 | Screw type water vapor compressor unit and working method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201486870U (en) * | 2009-08-04 | 2010-05-26 | 深圳寿力亚洲实业有限公司 | Screw type compressor oil path system |
| CN201546957U (en) * | 2009-10-19 | 2010-08-11 | 成都格莱海德能源技术发展有限公司 | Screw type natural gas compressor |
| CN202851366U (en) * | 2012-10-30 | 2013-04-03 | 珠海格力电器股份有限公司 | Opening-type screw rod unit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007198199A (en) * | 2006-01-25 | 2007-08-09 | Hitachi Industrial Equipment Systems Co Ltd | Capacity control device and capacity control method for screw compressor |
-
2012
- 2012-10-30 CN CN201210425937.4A patent/CN103790829B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201486870U (en) * | 2009-08-04 | 2010-05-26 | 深圳寿力亚洲实业有限公司 | Screw type compressor oil path system |
| CN201546957U (en) * | 2009-10-19 | 2010-08-11 | 成都格莱海德能源技术发展有限公司 | Screw type natural gas compressor |
| CN202851366U (en) * | 2012-10-30 | 2013-04-03 | 珠海格力电器股份有限公司 | Opening-type screw rod unit |
Non-Patent Citations (1)
| Title |
|---|
| 第122-124页;李军;《制冷技术》;20010330(第1期);第31-40页 * |
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| CN103790829A (en) | 2014-05-14 |
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