CN102619769A - High-pressure centrifugal fan - Google Patents

High-pressure centrifugal fan Download PDF

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Publication number
CN102619769A
CN102619769A CN2012101129909A CN201210112990A CN102619769A CN 102619769 A CN102619769 A CN 102619769A CN 2012101129909 A CN2012101129909 A CN 2012101129909A CN 201210112990 A CN201210112990 A CN 201210112990A CN 102619769 A CN102619769 A CN 102619769A
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China
Prior art keywords
compression unit
centrifugal blower
centrifugal
air
cooler
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Pending
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CN2012101129909A
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Chinese (zh)
Inventor
宋波
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JIANGSU CHINFAN COMPRESSOR Inc
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JIANGSU CHINFAN COMPRESSOR Inc
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Priority to CN2012101129909A priority Critical patent/CN102619769A/en
Publication of CN102619769A publication Critical patent/CN102619769A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a high-pressure centrifugal fan, which comprises a first centrifugal blower, a second centrifugal blower, an electric motor and an air cooler, wherein the first centrifugal blower and the second centrifugal blower are driven by the same electric motor and connected by the air cooler, the first centrifugal blower and the second centrifugal blower are provided with casings respectively, air inlet ports and air outlet ports are arranged on the casings, the air cooler is in communication with the air outlet port of the first centrifugal blower through an air inlet pipe and is in communication with the air inlet port of the second centrifugal blower through an air outlet pipe, high-pressure high-temperature gas discharged from the air outlet port of the first centrifugal blower is cooled by the air cooler and compressed secondly by the second centrifugal blower, and then the high-temperature gas is discharged from the air outlet port of the second centrifugal blower. The high-pressure centrifugal fan improves the pressure rise capability of high-pressure centrifugal fans greatly and meets the requirements of high-pressure for high-pressure centrifugal fans in the market.

Description

Centrifugal high pressure fan
Technical field
The present invention relates to centrifugal gas compressing equipment technical field, relate in particular to a kind of ultrahigh pressure multistage centrifugal blower fan.
Background technique
Centrifugal gas compression equipment pressing force height is divided into centrifugal compressor, centrifugal blower, centrifugal blower.Applying pressure scope separately is: centrifugal compressor>150kPa, centrifugal blower 20-150kPa, centrifugal blower<20kPa.The pressure of centrifugal blower has played the effect of forming a connecting link between centrifugal compressor and centrifugal blower, in whole centrifugal compression equipment, belong to medium-voltage equipment, also can be regarded as the compressor of low pressure or the blower fan of high pressure.
Be illustrated in figure 1 as the structural representation of existing a kind of centrifugal blower, it comprises casing 91, is installed in the main shaft 92 on the casing; Suction port 93, relief opening 94, and the multistage gas compression unit 95 that is communicated with suction port 93 and relief opening 94, said suction port 93 and relief opening 94 are located at the both sides of casing 91 respectively; The inboard of casing 91 is located in said multistage gas compression unit 95, and every grade of gas compression unit has diffusion district and recirculating zone, and is located at the impeller 96 in the diffusion district passage; Impeller through high speed rotating does work to gas, and gas pressure is improved, and speed increases; Gas with certain pressure flows out from impeller at a relatively high speed; Flow into Diffuser, gas velocity is reduced, a part of kinetic energy of gas is converted into potential energy; Thereby the pressure of gas is raise, discharge by relief opening through the pressurized gas after the multistage gas compression cell compression.
Yet along with in the application of centrifugal high pressure fan for pressure require increasingly high; The tradition multistage centrifugal blower improves pressure through the method that increases impeller, raising rotating speed, increase progression etc.; But because the restriction of structural strength, the increase of impeller diameter and the raising of speed have the upper limit; Be limited to the restriction of rotor dynamics, progression also has the upper limit.Thereby make the pressure capability of existing multistage centrifugal blower reach capacity, generally be no more than 150kPa.
And multimachine is self-contained in a pedestal, only is shown in multistage centrifugal compressor by same motor-driven centrifugal compression device.Such centrifugal compressor need install gear train assembly additional, and is the unit of multiaxis, and the vibration that exists gear-driven mechanical loss and multiaxis transmission to bring strengthens problem, and fabricating cost also increases greatly.
Summary of the invention
The objective of the invention is to overcome the defective of existing technology, a kind of ultrahigh pressure centrifugal blower is provided, so that the more pressurized gas of high pressure to be provided, to satisfy market the increasingly high pressure requirement of centrifugal high pressure fan.
For realizing above-mentioned purpose; The present invention proposes following technological scheme: a kind of centrifugal high pressure fan; It comprises motor; By the motor-driven first air compression unit and the second air compression unit, and be connected in the cooler between the first air compression unit and the second air compression unit, the said first air compression unit and the second air compression unit have suction port and relief opening respectively; Said cooler comprises cooling chamber, is connected to the suction tude and the steam outlet pipe at cooling chamber two ends, and the relief opening of the said first air compression unit and said suction tude are joined, and the suction port of the said second air compression unit and said steam outlet pipe join.
Further; The said first gas compression unit and the second gas compression unit have casing respectively; Be arranged at the main shaft on the casing, the main shaft of the said first gas compression unit and the second gas compression unit joins through first coupling and second coupling and said motor respectively.
Be provided with the multistage gas compression unit that is connected with said corresponding suction port and relief opening in the casing of the said first gas compression unit and the second gas compression unit.
Said suction port and said relief opening are located at the both sides of corresponding casing respectively.
The said first gas compression unit and the second gas compression unit are installed on the same chassis.
Said cooling chamber comprises cooler casing; Be formed at the cooler core in the cooler casing; And be formed at the cooling space between said cooler casing and cooler core; Be connected with cooling water in the said cooler core, be connected with in the said cooling space through the pressurized gas after the first gas compression cell compression.
The said first gas compression unit is first centrifugal blower, and the said second gas compression unit is second centrifugal blower.
Compared with prior art, centrifugal high pressure fan provided by the invention has the following advantages:
1, the voltage rise ability to air is doubled;
2, adopt traditional high pressure centrifugal blower technology, on material and technology, do not have requirements at the higher level, be beneficial to enforcement.
3, integrated design and making use like same traditional high pressure positive blower.
4, install interstage cooler additional, improve the thermodynamic property of gas compression processes, reduce power consumption, improve boost capability and overall efficiency.
5, covered the voltage rise scope of roots blower fully, the traditional centrifugal blower fan is because the voltage rise ability can only substitute limited roots blower inadequately.
Description of drawings
Fig. 1 is the sectional view of existing centrifugal blower;
Fig. 2 is the schematic representation of centrifugal high pressure fan of the present invention.
Embodiment
To combine accompanying drawing of the present invention below, the technological scheme of the embodiment of the invention will be carried out clear, complete description.
Centrifugal high pressure fan as shown in Figure 2, disclosed, it comprises motor 1, by first compressed air unit 2 and second compressed air unit 3 of motor 1 driving, and cooler 4.In the present embodiment; Said first compressed air unit 2 and second compressed air unit 3 are first centrifugal blower 2 and second centrifugal blower 3; This first centrifugal blower 2 and second centrifugal blower 3 join with said motor 1 through first coupling 11 and second coupling 12 respectively, and said cooler 4 is connected in 3 of first centrifugal blower 2 and second centrifugal blowers.
Specifically; Said first centrifugal blower 2 and second centrifugal blower 3 have casing 21,31 respectively; Be arranged at the suction port 22,32 and the relief opening 23,33 of casing 21,31 both sides; Be installed in the main shaft 24,34 on the casing 21,31, and be arranged at casing 21,31 inboard with said corresponding suction port 22,32 and relief opening 23, the 33 multistage gas compression unit (scheming not show) that is connected.
Said first centrifugal blower 2 is connected with said motor 1 through first coupling 11 near the main shaft 24 of relief opening 23 1 ends, forms the exhaust gas drive of 1 pair first centrifugal blower 2 of motor.Said second centrifugal blower 3 is connected with motor 1 through second coupling 12 near the main shaft 34 of suction port 32 1 sides, and the air inlet that forms 1 pair second centrifugal blower 3 of motor drives.
Said cooler 4 has cooling chamber 41; Be located at the suction tude 42 and steam outlet pipe 43 at cooling chamber 41 two ends respectively; The relief opening 23 of the said suction tude 42 and first centrifugal blower 2 joins; Be used for and be delivered to cooling chamber 41 coolings through high pressure, the high-temperature gas after 2 compressions of first centrifugal blower, after the high-temperature gas that in cooling chamber 41, will from first centrifugal blower 2, come out cools to normal temperature, be sent to the suction port 32 of second centrifugal blower 3 through steam outlet pipe 43; Carry out the secondary compression supercharging by 3 pairs of pressurized gass of second centrifugal blower, make gas obtain more high pressure.And because the gas after first centrifugal blower 2 compresses is to compress after having passed through the cooling of cooler again; Therefore the thermodynamic property and the compressed capability of second centrifugal blower have been improved; Reduce compression power consumption, made the whole gas compression ability of centrifugal blower be greatly improved.
Said cooling chamber 41 comprises cooler casing 411 and cooler core 412 compositions; Cooler core 412 selects for use copper pipe or Stainless Steel Tube to process according to different working condition requirements; Pipeline outer wall increases aluminium, copper or stainless steel fin to improve cooling effect, and 412 of cooler casing 411 and cooler core form compressed-air actuated cooling space, and pressurized gas flows outside cooler core 412; Cooling water flows in cooler core; The cooling of design consideration gas flow, gas pressure and the gas temperature of cooler requires to have carried out optimal design, to reach best cooling effect, reduces the pressure loss simultaneously as far as possible.
First centrifugal blower 2 in the present embodiment and second centrifugal blower 3 are contained on the same chassis 5; And drive by same motor 1; And first centrifugal blower 2 adopts identical structure and configuration with second centrifugal blower 3, to guarantee the conformity of performances such as compression gas flow.And in other mode of executions of the present invention, can also use two motors to drive the mode of first centrifugal blower and second centrifugal blower respectively, and first centrifugal blower can adopt different configurations with second centrifugal blower.
The present invention adopts two machine integrated pressurizings, but shares a motor driving, and is the shaft joint direct connection transmission on same straight line, and not only pressure capability promotes one times, also need not install the gear-box of multiple axes system additional, and fabricating cost is also controlled.
The Coupling Design of two air compressors that adopt among the present invention, promptly first compressed air unit boosts air, and temperature returns to the normal temperature state behind cooler, but pressure raises the corresponding rising of air density.Second compressed air unit will carry out matching Design based on more high pressure and more highdensity air inlet state, and inner flow passage and compression unit will carry out Aerodynamic optimization design, make that the compression efficiency of second unit is high, reduce power consumption levels.
Technology contents of the present invention and technical characteristics have disclosed as above; Yet those of ordinary skill in the art still maybe be based on teaching of the present invention and announcements and are done all replacement and modifications that does not deviate from spirit of the present invention; Therefore; Protection domain of the present invention should be not limited to the content that embodiment discloses, and should comprise various do not deviate from replacement of the present invention and modifications, and is contained by the present patent application claim.

Claims (7)

1. centrifugal high pressure fan; It is characterized in that: comprise motor; By the motor-driven first air compression unit and the second air compression unit; And being connected in the air-cooler between the first air compression unit and the second air compression unit, the said first air compression unit and the second air compression unit have suction port and relief opening respectively; Said air-cooler comprises cooling chamber, is connected to the suction tude and the steam outlet pipe at cooling chamber two ends, and the relief opening of the said first air compression unit and said suction tude are joined, and the suction port of the said second air compression unit and said steam outlet pipe join.
2. the centrifugal high pressure fan of stating according to claim 1; It is characterized in that: the said first gas compression unit and the second gas compression unit have casing respectively; Be arranged at the main shaft on the casing, the main shaft of the said first gas compression unit and the second gas compression unit joins through first coupling and second coupling and motor respectively.
3. the centrifugal high pressure fan of stating according to claim 2 is characterized in that: be provided with the multistage gas compression unit that is connected with said corresponding suction port and relief opening in the casing of the said first gas compression unit and the second gas compression unit.
4. the centrifugal high pressure fan of stating according to claim 2 is characterized in that: said suction port and said relief opening are located at the both sides of corresponding casing respectively.
5. the centrifugal high pressure fan of stating according to claim 1 is characterized in that: the said first gas compression unit and the second gas compression unit are installed on the same chassis.
6. the centrifugal high pressure fan of stating according to claim 1; It is characterized in that: said cooling chamber comprises cooler casing; Be formed at the cooler core in the cooler casing; And be formed at the cooling space between said cooler casing and cooler core, and be connected with cooling water in the said cooler core, be connected with in the said cooling space through the pressurized gas after the first gas compression cell compression.
7. according to any described centrifugal high pressure fan of claim 1 to 6, it is characterized in that: the said first gas compression unit is first centrifugal blower, and the said second gas compression unit is second centrifugal blower.
CN2012101129909A 2012-04-17 2012-04-17 High-pressure centrifugal fan Pending CN102619769A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103047158A (en) * 2012-12-31 2013-04-17 中国科学院合肥物质科学研究院 Fan device driving gas to circulate in high-temperature high-pressure sealed pipeline
CN104061172A (en) * 2013-03-20 2014-09-24 上海宝钢工业技术服务有限公司 Atomizing air blower
CN106499646A (en) * 2017-01-09 2017-03-15 黄志婷 Novel evacuated compressibility
CN107299917A (en) * 2016-04-15 2017-10-27 济南枭龙重工机械有限公司 A kind of environment-friendly highly efficient noise reduction cooling air blower

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2392931Y (en) * 1999-10-15 2000-08-23 邱熙 Multi-stage centrifugal pump
CN1461387A (en) * 2000-09-19 2003-12-10 艾拉斯科普库空气动力股份有限公司 High pressure multi-stage centrifugal compressor
CN1633561A (en) * 2001-04-23 2005-06-29 艾略特涡轮机械公司 Multi-stage centrifugal compressor
CN2756873Y (en) * 2004-12-02 2006-02-08 西安交通大学 Four grade two section double inlet pre rotary device centrafugal blower
CN202646060U (en) * 2012-04-17 2013-01-02 江苏乘帆压缩机有限公司 High pressure centrifugal fan

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2392931Y (en) * 1999-10-15 2000-08-23 邱熙 Multi-stage centrifugal pump
CN1461387A (en) * 2000-09-19 2003-12-10 艾拉斯科普库空气动力股份有限公司 High pressure multi-stage centrifugal compressor
CN1633561A (en) * 2001-04-23 2005-06-29 艾略特涡轮机械公司 Multi-stage centrifugal compressor
CN2756873Y (en) * 2004-12-02 2006-02-08 西安交通大学 Four grade two section double inlet pre rotary device centrafugal blower
CN202646060U (en) * 2012-04-17 2013-01-02 江苏乘帆压缩机有限公司 High pressure centrifugal fan

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103047158A (en) * 2012-12-31 2013-04-17 中国科学院合肥物质科学研究院 Fan device driving gas to circulate in high-temperature high-pressure sealed pipeline
CN103047158B (en) * 2012-12-31 2015-04-15 中国科学院合肥物质科学研究院 Fan device driving gas to circulate in high-temperature high-pressure sealed pipeline
CN104061172A (en) * 2013-03-20 2014-09-24 上海宝钢工业技术服务有限公司 Atomizing air blower
CN107299917A (en) * 2016-04-15 2017-10-27 济南枭龙重工机械有限公司 A kind of environment-friendly highly efficient noise reduction cooling air blower
CN107299917B (en) * 2016-04-15 2019-01-01 济南枭龙重工机械有限公司 A kind of environment-friendly highly efficient noise reduction cooling air blower
CN106499646A (en) * 2017-01-09 2017-03-15 黄志婷 Novel evacuated compressibility
CN106499646B (en) * 2017-01-09 2019-10-15 淄博真空设备厂有限公司 Novel evacuated compressibility

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Application publication date: 20120801