CN108050084A - A kind of rear cold depth cooling system for centrifugal air compressor - Google Patents
A kind of rear cold depth cooling system for centrifugal air compressor Download PDFInfo
- Publication number
- CN108050084A CN108050084A CN201711185933.2A CN201711185933A CN108050084A CN 108050084 A CN108050084 A CN 108050084A CN 201711185933 A CN201711185933 A CN 201711185933A CN 108050084 A CN108050084 A CN 108050084A
- Authority
- CN
- China
- Prior art keywords
- air compressor
- centrifugal air
- level
- cooling tower
- temperature
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/10—Centrifugal pumps for compressing or evacuating
- F04D17/12—Multi-stage pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D16/00—Devices using a combination of a cooling mode associated with refrigerating machinery with a cooling mode not associated with refrigerating machinery
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/04—Preventing the formation of frost or condensate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The present invention relates to a kind of rear cold depth cooling systems for centrifugal air compressor, three-level centrifugation pneumatics unit including multiple parallel connections, three-level centrifugation pneumatics unit includes first-stage centrifugal air compressor machine, two-stage centrifugal air compressor machine and three-level centrifugal air compressor, it is connected per the outlet of level-one centrifugal air compressor with a cooler, cooling system includes cooling tower and refrigeration station, and the temperature of coolant is higher than the temperature of freezing liquid in refrigeration station in cooling tower, two coolers being connected with first-stage centrifugal air compressor machine and two-stage centrifugal air compressor machine are connected with cooling tower, it is all connected with the cooler that three-level centrifugal air compressor is connected and cooling tower and refrigeration station.Compared with prior art, three-level centrifugal air compressor of the invention can be used the chilled water of more low temperature and be cooled down, and reduce compressed air enthalpy, reduce water content of compressed air, improve the work efficiency of follow-up drying machine.
Description
Technical field
The present invention relates to technical field of air compression, and in particular to a kind of rear cold depth cooling dress for centrifugal air compressor
It puts.
Background technology
Centrifugal air compressor, i.e. centrifugal air compressor, principle are by impeller gas to be driven to do to rotate at a high speed, make gas
Centrifugal force is generated, due to diffusion flowing of the gas in impeller, is carried so as to pass the gas through the flow velocity after impeller and pressure
Height, continuously produces compressed air, and centrifugal air compressor is usually used in multi-stage compression.After every one stage of compression, need to air into
Row cooling, reduces the water content in compressed air, is on the one hand the energy consumption for reducing next stage centrifugal air compressor, on the other hand subtracts
The load of few drying machine.At present, the latter linked cooler of multistage centrifugal air compressor machine is cooled down by same low-temperature receiver, actual production
It finds in the process, the load of drying machine is larger, can not meet production requirement.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of operating cost is low
For the rear cold depth cooling system of centrifugal air compressor.
The purpose of the present invention can be achieved through the following technical solutions：A kind of rear cold depth for centrifugal air compressor is cold
But system, the cooling system include the three-level centrifugation pneumatics unit of multiple parallel connections, and three-level centrifugation pneumatics unit includes first-stage centrifugal
Air compressor machine, two-stage centrifugal air compressor machine and three-level centrifugal air compressor, the outlet per level-one centrifugal air compressor connect with a cooler
It connects, the cooling system includes cooling tower and refrigeration station, and the temperature of coolant is higher than freezing liquid in refrigeration station in cooling tower
Temperature, two coolers being connected with the first-stage centrifugal air compressor machine and two-stage centrifugal air compressor machine are connected with cooling tower, and described
The cooler of three-level centrifugal air compressor connection is all connected with cooling tower and refrigeration station.In the present invention, a two-stage centrifugal air compressor machine is still
The cooling of air is compressed with cooling tower, ensures that air compressor machine inner wall does not generate condensation water, ensures the safe and efficient fortune of air compressor machine
Row；And the chilled water that more low temperature can be used in three-level centrifugal air compressor is cooled down, and reduces compressed air enthalpy, reduces compressed air
Water content improves the work efficiency of follow-up drying machine.
The cooler being connected with the three-level centrifugal air compressor is connected with cooling tower and refrigeration station, and is divided on connecting line
Not She You butterfly valve, two butterfly valves can not open simultaneously.
It is connected to control the system comprises the temperature sensor for determination of the environment temperature and with temperature sensor
The controller of butterfly valve opening and closing.When environment temperature is less than a certain temperature, just have been able to meet the 3rd centrifugation sky using cooling water
The cooling purpose for the compressed air that press comes out then controls cooler and cooling tower after three-level centrifugal air compressor by controller
Connection, so as to save cold, such case generally uses in winter；When environment temperature is higher than a certain temperature, cooling tower comes out
Cooling water can not meet the cooling requirement of three-level centrifugal air compressor, controller then controls cold after three-level centrifugal air compressor
But device is connected with refrigeration station, further reduces compressed air enthalpy, reduces water content of compressed air, improves the work effect of drying machine
Rate.
The controller is PLC controller, selects such type controller, and control is more simple and efficient.
The cooling tower includes a packed tower and a wind turbine, coolant by heat exchange from filler column overhead into
Enter, by wind cooling temperature lowering, cooling tower is cooled down by the way of air-cooled, and increases contact of the cold air with cooling water by packed tower
Area, so that the cooling of cooling tower is more energy saving, efficient.
The temperature for the coolant that the cooling tower comes out is >=20 DEG C, and the temperature for freezing the freezing liquid stood out is 7
~15 DEG C.
Compared with prior art, beneficial effects of the present invention are embodied in following several respects：
(1) I and II cooler is still cooled down with the cooling water after cooling tower forced convertion, ensures air compressor machine inner wall not
Condensation water is generated, ensures the safe and highly efficient operation of air compressor machine；
(2) three-level centrifugal air compressor can be used the chilled water of more low temperature and be cooled down, and reduce compressed air enthalpy, reduce pressure
Contracting air moisture content improves the work efficiency of follow-up drying machine；
(3) refrigerating mode is changed according to seasonal shift, operating cost is reduced while optimum efficiency is ensured.
Description of the drawings
Fig. 1 is the connection diagram of the system of the present invention in winter；
Fig. 2 be the present invention system the spring, the summer, Qiu Sanji connection diagram.
Wherein, 1 is three-level centrifugal air compressor for what two-stage centrifugal air compressor machine of first-stage centrifugal air compressor machine, 2, and LQS is cooling water
Feed pipe, LQH are cooling water return pipe, and LDS is chilled water feed pipe, and LDH is freezing liquid return pipe.
Specific embodiment
It elaborates below to the embodiment of the present invention, the present embodiment is carried out lower based on the technical solution of the present invention
Implement, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following implementation
Example.
Embodiment 1
A kind of rear cold depth cooling system for centrifugal air compressor, the cooling system include four three-level centrifugations in parallel
Pneumatics unit, three-level centrifugation pneumatics unit include first-stage centrifugal air compressor machine and two-stage centrifugal air compressor machine 1 and three-level centrifugation pneumatics
Machine 2 is connected per the outlet of level-one centrifugal air compressor with a cooler, and cooling system includes cooling tower and refrigeration station, and cold
But in tower coolant temperature higher than freezing liquid in refrigeration station temperature, with first-stage centrifugal air compressor machine and two-stage centrifugal air compressor machine 1
Two coolers of connection are connected with cooling tower, equal with the cooler that three-level centrifugal air compressor 2 is connected and cooling tower and refrigeration station
Connection, and butterfly valve is respectively equipped on connecting line, two butterfly valves can not be opened simultaneously.
The system further includes for the temperature sensor of determination of the environment temperature and is connected to control with temperature sensor
The PLC controller of butterfly valve opening and closing.When environment temperature is less than a certain temperature, just have been able to meet the 3rd centrifugation using cooling water
The cooling purpose for the compressed air that air compressor machine comes out, then controlled by PLC controller the cooler after three-level centrifugal air compressor 2 with
Cooling tower connects, and so as to save cold, such case generally uses in winter, as shown in Figure 1, when environment temperature is higher than a certain temperature
When spending, the cooling water that cooling tower comes out can not meet the cooling requirement of three-level centrifugal air compressor 2, and PLC controller then controls
Cooler after three-level centrifugal air compressor 2 is connected with refrigeration station, further reduces compressed air enthalpy, and it is aqueous to reduce compressed air
Amount improves the work efficiency of drying machine, as shown in Figure 2.
Cooling tower includes a packed tower and a wind turbine, and the coolant by heat exchange enters from filler column overhead, warp
Wind cooling temperature lowering is crossed, the temperature for the coolant that cooling tower comes out is 20, and the temperature for freezing the freezing liquid stood out is 7~15 DEG C.
Claims (6)
1. a kind of rear cold depth cooling system for centrifugal air compressor, the three-level centrifugation which includes multiple parallel connections is empty
Unit is pressed, three-level centrifugation pneumatics unit includes first-stage centrifugal air compressor machine, two-stage centrifugal air compressor machine and three-level centrifugal air compressor, each
The outlet of grade centrifugal air compressor is connected with a cooler, which is characterized in that the cooling system includes cooling tower and freezing
It stands, and the temperature of coolant is higher than the temperature of freezing liquid in refrigeration station in cooling tower, with the first-stage centrifugal air compressor machine and two level
Two coolers of centrifugal air compressor connection are connected with cooling tower, the cooler being connected with the three-level centrifugal air compressor and cooling
Tower and refrigeration station are all connected with.
2. a kind of rear cold depth cooling system for centrifugal air compressor according to claim 1, which is characterized in that with institute
The cooler for stating the connection of three-level centrifugal air compressor is connected with cooling tower and refrigeration station, and butterfly valve is respectively equipped on connecting line,
Two butterfly valves can not be opened simultaneously.
3. a kind of rear cold depth cooling system for centrifugal air compressor according to claim 2, which is characterized in that described
System includes being used for the temperature sensor of determination of the environment temperature and the control that butterfly valve is controlled to be opened and closed is connected with temperature sensor
Device processed.
4. a kind of rear cold depth cooling system for centrifugal air compressor according to claim 3, which is characterized in that described
Controller is PLC controller.
5. a kind of rear cold depth cooling system for centrifugal air compressor according to claim 1, which is characterized in that described
Cooling tower includes a packed tower and a wind turbine, and the coolant by heat exchange enters from filler column overhead, by air-cooled drop
Temperature.
6. a kind of rear cold depth cooling system for centrifugal air compressor according to claim 1, which is characterized in that described
The temperature for the coolant that cooling tower comes out is >=20 DEG C, and the temperature for freezing the freezing liquid stood out is 7~15 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711185933.2A CN108050084A (en) | 2017-11-23 | 2017-11-23 | A kind of rear cold depth cooling system for centrifugal air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711185933.2A CN108050084A (en) | 2017-11-23 | 2017-11-23 | A kind of rear cold depth cooling system for centrifugal air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108050084A true CN108050084A (en) | 2018-05-18 |
Family
ID=62119036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711185933.2A Pending CN108050084A (en) | 2017-11-23 | 2017-11-23 | A kind of rear cold depth cooling system for centrifugal air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108050084A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020039458A1 (en) * | 2018-08-20 | 2020-02-27 | Jagtap Ajay Ambadas | Air compressor device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090016898A1 (en) * | 2006-01-31 | 2009-01-15 | Alexander Antoon Smets | Compressor Device |
| KR200446520Y1 (en) * | 2009-06-22 | 2009-11-05 | 강일중 | Air Compressing System |
| GB201005169D0 (en) * | 2010-03-26 | 2010-05-12 | Linde Ag | Compressors |
| CN102926975A (en) * | 2012-10-10 | 2013-02-13 | 双良节能***股份有限公司 | Interstage cooling system of water-saving compressor |
| CN104179663A (en) * | 2014-08-13 | 2014-12-03 | 福建德兴节能科技有限公司 | Low energy-consumption compressed air cooling method and system thereof |
| CN207500154U (en) * | 2017-11-23 | 2018-06-15 | 宁波杭州湾新区祥源动力供应有限公司 | A kind of rear cold depth cooling system for centrifugal air compressor |
-
2017
- 2017-11-23 CN CN201711185933.2A patent/CN108050084A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090016898A1 (en) * | 2006-01-31 | 2009-01-15 | Alexander Antoon Smets | Compressor Device |
| KR200446520Y1 (en) * | 2009-06-22 | 2009-11-05 | 강일중 | Air Compressing System |
| GB201005169D0 (en) * | 2010-03-26 | 2010-05-12 | Linde Ag | Compressors |
| CN102926975A (en) * | 2012-10-10 | 2013-02-13 | 双良节能***股份有限公司 | Interstage cooling system of water-saving compressor |
| CN104179663A (en) * | 2014-08-13 | 2014-12-03 | 福建德兴节能科技有限公司 | Low energy-consumption compressed air cooling method and system thereof |
| CN207500154U (en) * | 2017-11-23 | 2018-06-15 | 宁波杭州湾新区祥源动力供应有限公司 | A kind of rear cold depth cooling system for centrifugal air compressor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020039458A1 (en) * | 2018-08-20 | 2020-02-27 | Jagtap Ajay Ambadas | Air compressor device |
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