CN206073491U - Freezer screw compressor unit - Google Patents
Freezer screw compressor unit Download PDFInfo
- Publication number
- CN206073491U CN206073491U CN201620993162.4U CN201620993162U CN206073491U CN 206073491 U CN206073491 U CN 206073491U CN 201620993162 U CN201620993162 U CN 201620993162U CN 206073491 U CN206073491 U CN 206073491U
- Authority
- CN
- China
- Prior art keywords
- compressor
- oil
- return
- air
- exhaust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000013022 venting Methods 0.000 claims abstract description 5
- 238000000605 extraction Methods 0.000 claims abstract description 4
- 239000012530 fluid Substances 0.000 claims description 11
- 238000001802 infusion Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 5
- 239000000446 fuel Substances 0.000 claims description 4
- 238000005057 refrigeration Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000010977 unit operation Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 46
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 239000006200 vaporizer Substances 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004899 motility Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
This utility model is related to a kind of freezer screw compressor unit, belong to Compressor Technology field, including frame, several screw compressors, air return system, gas extraction system, oil piping system are sequentially connected by pipeline in frame, each compressor correspondence one motor of connection, the gas returning port of each compressor connects return-air main pipe rail by return-air branch line, and return-air branch line is provided with switch valve；The air vent of each compressor connects exhaust main road by Exhaust branch pipeline, Exhaust branch pipeline is provided with venting check valve, temperature sensor and oil eliminator are sequentially connected on exhaust main road, oil eliminator connects return-air main pipe rail and oil piping system respectively, and oil piping system connects each compressor.The unit operation reliability is high, and fault rate is low, it is ensured that refrigeration.
Description
Technical field
This utility model is related to a kind of freezer screw compressor unit, belongs to Compressor Technology field.
Background technology
Refrigeration compressor is the visual plant freezed by large cold storage and low temperature logistics distnbution center.General refrigeration compressor
Using single Compressor Group, which has the advantages that the little, cost performance of occupation of land is high to group, but in the use of large cold storage, it is impossible to pin
The requirement to user to property carries out refrigeration adjustment, easily produces the situation of unit refrigerating capacity deficiency or surplus, long-term high load capacity
Operating power consumption is big, and compressor abrasion is serious, efficiency is low, and the refrigeration of freezer can be directly affected when single compressor bank breaks down
Effect.
Utility model content
According to deficiency of the prior art above, the technical problems to be solved in the utility model is：There is provided a kind of freezer to use
Screw compressor unit, operational reliability are high, reduce fault rate, it is ensured that refrigeration.
Freezer screw compressor unit described in the utility model, including frame, are sequentially connected by pipeline in frame
Several screw compressors, air return system, gas extraction system, oil piping system, each compressor correspondence one motor of connection, each
The gas returning port of compressor connects return-air main pipe rail by return-air branch line, and return-air branch line is provided with switch valve；Each pressure
The air vent of contracting machine connects exhaust main road by Exhaust branch pipeline, and Exhaust branch pipeline is provided with venting check valve, aerofluxuss
Temperature sensor and oil eliminator are sequentially connected on main pipe rail, oil eliminator connects return-air main pipe rail and oil piping system respectively, oil
Road system connects each compressor；Bypass valve is provided between the return-air branch line and Exhaust branch pipeline of each compressor.
During work, coolant superheated steam from gas returning port enter compressor compression intracavity, after compression, certain pressure,
At a temperature of discharge from air vent, compressor, oil eliminator point are then reentered after oil eliminator, cooler, vaporizer
From oil compressor is reentered by oil piping system, compressor can be respectively started according to actual condition, can be according to exhaust main
Temperature sensor detection, design temperature predetermined value on road, releases cold-producing medium to cooling compressor, reaches delivery temperature, eliminate
Overheat of compressor, when bypass valve is mainly for compressor operating, in the case that admission pressure is too low, reduces motor load, protection
Motor.
Preferably, oil piping system includes filter, oil level ragulator and valve for pressure difference, oil eliminator by oil circuit main line according to
Secondary connection filter and overflow valve, oil circuit main line are sequentially connected each compressor, oil circuit branched pipe by oil circuit branch line
Road is provided with oil level ragulator, and overflow valve control lubricating oil enters the pressure of each branch line, when pressure reaches more than certain value
When, coordinate oil level ragulator to ensure that each compressor enters moderate lubrication oil.
Preferably, connect fluid infusion system on oil circuit main pipe rail, fluid infusion system includes fuel reserve tank and fluid infusion pump, works as oil eliminator
In no liquid when, lubricating oil can be mended in compressor from fuel reserve tank by fluid infusion system, it is ensured that normal to run.
Preferably, the return-air branch line of each compressor is provided with gas-liquid separator.
This utility model is had an advantageous effect in that compared with prior art：
Freezer is reasonable in design with screw compressor unit, using parallel structure, can enable different numbers according to actual needs
The compressor of amount and model is combined, and motility is strong, good refrigeration effect, reducing energy consumption, when wherein, a plasticator occurs
Can ensure when during failure, can still run, and run that the oil mass in compressor bank is balanced.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure：1st, compressor；2nd, bypass valve；3rd, gas-liquid separator；4th, switch valve；5th, vaporizer；6th, condenser；7th, temperature
Sensor；8th, oil eliminator；9th, motor；10th, filter；11st, oil level ragulator；12nd, overflow valve；13rd, fluid infusion pump；14th, oil storage
Case；15th, venting check valve.
Specific embodiment
Below in conjunction with the accompanying drawings embodiment of the present utility model is described further：
As shown in figure 1, freezer screw compressor unit includes frame, several spiral shells are sequentially connected by pipeline in frame
Rod-type compressor 1, air return system, gas extraction system, oil piping system, each correspondence one motor 9 of connection of compressor 1, each compression
The gas returning port of machine 1 connects return-air main pipe rail by return-air branch line, and return-air branch line is provided with switch valve 4；Each compression
The air vent of machine 1 connects exhaust main road by Exhaust branch pipeline, and Exhaust branch pipeline is provided with venting check valve 15, aerofluxuss
Temperature sensor 7 and oil eliminator 8 are sequentially connected on main pipe rail, oil eliminator 8 connects return-air main pipe rail and oil piping system respectively,
Oil piping system connects each compressor 1；Bypass valve is provided between the return-air branch line and Exhaust branch pipeline of each compressor 1
2。
Oil piping system includes filter 10, overflow valve 12 and oil level ragulator 11, oil eliminator 8 by oil circuit main line according to
Secondary connection filter 10 and overflow 12, oil circuit main line are sequentially connected each compressor 1, oil circuit branch by oil circuit branch line
Pipeline is provided with oil level ragulator 11.
Connect fluid infusion system on oil circuit main pipe rail, fluid infusion system includes fuel reserve tank 14 and fluid infusion pump 13.
The return-air branch line of each compressor 1 is provided with gas-liquid separator 3.
During work, coolant superheated steam from gas returning port enter compressor 1 compression intracavity, after compression, certain pressure,
At a temperature of from air vent discharge, then reenter compressor 1 after oil eliminator 8, condenser 6, vaporizer 5, it is separating of oil
8 detached oil of device reenters compressor 1 by oil piping system, and compressor 1 can be respectively started according to actual condition, reduces and starts
Supply load；Can be detected according to the temperature sensor 7 on exhaust main road, design temperature predetermined value, when delivery temperature is higher than pre-
During definite value, release cold-producing medium and compressor 1 is lowered the temperature, reach delivery temperature, eliminate overheat of compressor phenomenon；Bypass valve 2 is mainly
When compressor 1 runs, in the case that admission pressure is too low, motor 9 load is reduced, protect motor 9；The control lubrication of overflow valve 12
Oil enters the pressure of each branch line, when pressure reaches more than certain value, coordinates oil level ragulator 11 to ensure that each compressor 1 enters
Enter moderate lubrication oil.Increased or decreased by the compressor of 4 pairs of participation work of controlled motor 9 and switch valve, when wherein one
The operation of whole unit when compressor breaks down, is not interfered with yet, freezer normal work is maintained.
Claims (4)
1. a kind of freezer screw compressor unit, including frame, is sequentially connected several screw pressures by pipeline in frame
Contracting machine (1), air return system, gas extraction system, oil piping system, it is characterised in that：Each compressor (1) correspondence one motor of connection
(9), the gas returning port of each compressor (1) connects return-air main pipe rail by return-air branch line, and return-air branch line is provided with out
Close valve (4)；The air vent of each compressor (1) connects exhaust main road by Exhaust branch pipeline, sets on Exhaust branch pipeline
There is venting check valve (15), on exhaust main road, be sequentially connected temperature sensor (7) and oil eliminator (8), oil eliminator (8) point
Not Lian Jie return-air main pipe rail and oil piping system, oil piping system connects each compressor (1)；The return-air branch of each compressor (1)
Bypass valve (2) is provided between pipeline and Exhaust branch pipeline.
2. freezer screw compressor unit according to claim 1, it is characterised in that：Described oil piping system included
Filter (10), oil level ragulator (11) and overflow valve (12), oil eliminator (8) are sequentially connected filter by oil circuit main line
(10) and overflow valve (12), oil circuit main line is sequentially connected each compressor (1), oil circuit branch line by oil circuit branch line
It is provided with oil level ragulator (11).
3. freezer screw compressor unit according to claim 2, it is characterised in that：Connect on described oil circuit main pipe rail
Fluid infusion system is connect, fluid infusion system includes fuel reserve tank (14) and fluid infusion pump (13).
4. freezer screw compressor unit according to claim 1, it is characterised in that：Described each compressor (1)
Return-air branch line be provided with gas-liquid separator (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620993162.4U CN206073491U (en) | 2016-08-30 | 2016-08-30 | Freezer screw compressor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620993162.4U CN206073491U (en) | 2016-08-30 | 2016-08-30 | Freezer screw compressor unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206073491U true CN206073491U (en) | 2017-04-05 |
Family
ID=58434995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620993162.4U Expired - Fee Related CN206073491U (en) | 2016-08-30 | 2016-08-30 | Freezer screw compressor unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206073491U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679212A (en) * | 2016-08-30 | 2017-05-17 | 山东奥纳尔制冷科技有限公司 | Screw compressor unit for cold storage |
-
2016
- 2016-08-30 CN CN201620993162.4U patent/CN206073491U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679212A (en) * | 2016-08-30 | 2017-05-17 | 山东奥纳尔制冷科技有限公司 | Screw compressor unit for cold storage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170405 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |