CN202646060U - High pressure centrifugal fan - Google Patents
High pressure centrifugal fan Download PDFInfo
- Publication number
- CN202646060U CN202646060U CN 201220162918 CN201220162918U CN202646060U CN 202646060 U CN202646060 U CN 202646060U CN 201220162918 CN201220162918 CN 201220162918 CN 201220162918 U CN201220162918 U CN 201220162918U CN 202646060 U CN202646060 U CN 202646060U
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- Prior art keywords
- compression unit
- gas compression
- high pressure
- centrifugal fan
- cooler
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Abstract
The utility model discloses a high pressure centrifugal fan. The high pressure centrifugal fan includes a first centrifugal fan, a second centrifugal fan, a motor and an air cooler, wherein the first centrifugal fan and the second centrifugal fan are driven by the same motor and connected with the air cooler. The first centrifugal fan and the second centrifugal fan are respectively provided with a case, an air inlet and an air outlet, wherein the air inlet and the air outlet are arranged on the case. The air cooler is communicated with the air outlet of the first centrifugal fan through an inlet air pipe and with the air inlet of the second centrifugal fan through an outlet air pipe. The high-pressure and high-temperature gas discharged from the air outlet of the first centrifugal fan is re-compressed through the second centrifugal fan after being cooled by the air cooler, and the high-pressure gas is discharged from the air outlet of the second centrifugal fan. The high pressure centrifugal fan has greater pressure rise capacity and meets the market needs for higher pressure of the high pressure centrifugal fan.
Description
Technical field
The utility model relates to centrifugal gas compressing equipment technical field, relates in particular to a kind of ultrahigh pressure Multi-stage centrifugal 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, belong to medium-voltage equipment in whole centrifugal compressed 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, be 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, described suction port 93 and relief opening 94 are located at respectively the both sides of casing 91, the inboard of casing 91 is located in described multistage gas compression unit 95, every grade of gas compression unit has diffusion district and recirculating zone, and be located at impeller 96 in the diffusion district passage, impeller by High Rotation Speed is to air work, gas pressure is improved, speed increases, and the gas with certain pressure flows out at a relatively high speed from impeller, flows into Diffuser, gas velocity is reduced, be potential energy with a part of kinetic transformation of gas, thereby the pressure of gas is raise, discharged by relief opening through the pressurized gas after the multistage gas compression cell compression.
Yet along with the requirement for pressure in the application of centrifugal high pressure fan is more and more higher, the tradition multistage centrifugal blower improves pressure by 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 so that the pressure capability of existing multistage centrifugal blower reaches capacity, generally be no more than 150kPa.
And multimachine is self-contained in a pedestal, only sees multistage centrifugal compressor by same motor-driven centrifugal compression device.Such centrifugal compressor need to 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.
The model utility content
The purpose of this utility model is to overcome the defective of prior art, and a kind of ultrahigh pressure centrifugal blower is provided, so that the more pressurized gas of high pressure to be provided, with the satisfying the market pressure requirement more and more higher to centrifugal high pressure fan.
For achieving the above object, the utility model proposes following technological scheme: a kind of centrifugal high pressure fan, it comprises motor, by motor-driven the first gas compression unit and the second gas compression unit, and being connected in cooler between the first gas compression unit and the second gas compression unit, described the first gas compression unit and the second gas compression unit have respectively suction port and relief opening; Described cooler comprises cooling chamber, is connected to suction tude and the steam outlet pipe at cooling chamber two ends, and the relief opening of described the first gas compression unit and described suction tude are joined, and the suction port of described the second gas compression unit and described steam outlet pipe join.
Further, described the first gas compression unit and the second gas compression unit have respectively casing, be arranged at the main shaft on the casing, the main shaft of described the first gas compression unit and the second gas compression unit joins by the first coupling and the second coupling and described motor respectively.
Be provided with the multistage gas compression unit that is connected with described corresponding suction port and relief opening in the casing of described the first gas compression unit and the second gas compression unit.
Described suction port and described relief opening are located at respectively the both sides of corresponding casing.
Described the first gas compression unit and the second gas compression unit are installed on the same chassis.
Described cooling chamber comprises cooler casing, be formed at the cooler core in the cooler casing, and be formed at cooling space between described cooler casing and cooler core, be connected with cooling water in the described cooler core, be connected with in the described cooling space through the pressurized gas after the first gas compression cell compression.
Described the first gas compression unit is the first centrifugal blower, and described the second gas compression unit is the second centrifugal blower.
Compared with prior art, the centrifugal high pressure fan that provides of the utility model has the following advantages:
1, the voltage rise ability of air is doubled;
2, adopt traditional high pressure centrifugal blower technology, on material and technique, without requirements at the higher level, be beneficial to enforcement.
3, integrated designing and making uses such as 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, traditional centrifugal blower is because the voltage rise ability can only substitute limited roots blower not.
Description of drawings
Fig. 1 is the sectional view of existing centrifugal blower;
Fig. 2 is the schematic representation of the utility model centrifugal high pressure fan.
Embodiment
Below in conjunction with accompanying drawing of the present utility model, the utility model embodiment's technological scheme is carried out clear, complete description.
As shown in Figure 2, the centrifugal high pressure fan that the utility model discloses, 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, described First compressed air unit 2 and second compressed air unit 3 are the first centrifugal blower 2 and the second centrifugal blower 3, this first centrifugal blower 2 and the second centrifugal blower 3 join with described motor 1 by the first coupling 11 and the second coupling 12 respectively, and described cooler 4 is connected in 3 of the first centrifugal blower 2 and the second centrifugal blowers.
Specifically, described the first centrifugal blower 2 and the second centrifugal blower 3 have respectively casing 21,31, be arranged at the suction port 22,32 and 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 and described corresponding suction ports 22,32 and relief opening 23, the 33 multistage gas compression unit (not shown) that is connected.
Described the first centrifugal blower 2 is connected with described motor 1 by the first coupling 11 near the main shaft 24 of relief opening 23 1 ends, forms the exhaust gas drive of 1 pair of the first centrifugal blower 2 of motor.Described the second centrifugal blower 3 is connected with motor 1 by the second coupling 12 near the main shaft 34 of suction port 32 1 sides, and the air inlet that forms 1 pair of the second centrifugal blower 3 of motor drives.
Described cooler 4 has cooling chamber 41, be located at respectively suction tude 42 and the steam outlet pipe 43 at cooling chamber 41 two ends, the relief opening 23 of described suction tude 42 and the first centrifugal blower 2 joins, be used for high pressure, high-temperature gas after 2 compressions of the first centrifugal blower are delivered to cooling chamber 41 coolings, will be from the first centrifugal blower 2 in cooling chamber 41 after out high-temperature gas cools to normal temperature, be sent to the suction port 32 of the second centrifugal blower 3 through steam outlet pipe 43, carry out the secondary compression supercharging by 3 pairs of pressurized gass of the second centrifugal blower, make gas obtain more high pressure.And because the gas after 2 compressions of the first centrifugal blower is through compressing after the cooling of cooler again, therefore thermodynamic property and the compressed capability of the second centrifugal blower have been improved, reduced compression power consumption, so that the gas compression ability of centrifugal blower integral body is greatly improved.
Described cooling chamber 41 comprises that cooler casing 411 and cooler core 412 form, cooler core 412 selects copper pipe or Stainless Steel Tube to make according to different working condition requirements, pipeline outer wall increases aluminium, copper or stainless steel fin are to improve cooling effect, 412 of cooler casing 411 and cooler core form compressed-air actuated cooling space, pressurized gas is cooler core 412 outer flowing, cooling water flows in cooler core, the design consideration gas flow of cooler, the cooling of gas pressure and gas temperature requires to be optimized design, to reach best cooling effect, reduce simultaneously the pressure loss as far as possible.
The first centrifugal blower 2 in the present embodiment and the second centrifugal blower 3 are contained on the same chassis 5, and driven by same motor 1, and the first centrifugal blower 2 adopts identical structure and configuration with the second centrifugal blower 3, to guarantee the conformity of the performances such as compression gas flow.And in other mode of executions of the present utility model, can also drive respectively with two motors the mode of the first centrifugal blower and the second centrifugal blower, and the first centrifugal blower can adopt different configurations with the second centrifugal blower.
The utility model 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, does not also need to install additional the gear-box of multiple axes system, and fabricating cost is also controlled.
The Coupling Design of two air compressors that adopt in the utility model, namely the 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 mate design based on more high pressure and more highdensity air-suction state, and inner flow passage and compression unit will carry out Aerodynamic optimization design, so that the compression efficiency of the second unit is high, reduce power consumption levels.
Technology contents of the present utility model and technical characteristics have disclosed as above; yet those of ordinary skill in the art still may be based on teaching of the present utility model and announcements and are done all replacement and modifications that does not deviate from the utility model spirit; therefore; the utility model protection domain should be not limited to the content that embodiment discloses; and should comprise various do not deviate from replacement of the present utility model and modifications, and contained by the present patent application claim.
Claims (7)
1. centrifugal high pressure fan, it is characterized in that: comprise motor, by motor-driven the first gas compression unit and the second gas compression unit, and being connected in air-cooler between the first gas compression unit and the second gas compression unit, described the first gas compression unit and the second gas compression unit have respectively suction port and relief opening; Described air-cooler comprises cooling chamber, is connected to suction tude and the steam outlet pipe at cooling chamber two ends, and the relief opening of described the first gas compression unit and described suction tude are joined, and the suction port of described the second gas compression unit and described steam outlet pipe join.
2. the centrifugal high pressure fan of stating according to claim 1, it is characterized in that: described the first gas compression unit and the second gas compression unit have respectively casing, be arranged at the main shaft on the casing, the main shaft of described the first gas compression unit and the second gas compression unit joins by the first coupling and the 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 described corresponding suction port and relief opening in the casing of described the 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: described suction port and described relief opening are located at respectively the both sides of corresponding casing.
5. the centrifugal high pressure fan of stating according to claim 1 is characterized in that: described the 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: described cooling chamber comprises cooler casing, be formed at the cooler core in the cooler casing, and be formed at cooling space between described cooler casing and cooler core, be connected with cooling water in the described cooler core, be connected with in the described cooling space through the pressurized gas after the first gas compression cell compression.
7. according to claim 1 to the described centrifugal high pressure fan of 6 any one, it is characterized in that: described the first gas compression unit is the first centrifugal blower, and described the second gas compression unit is the second centrifugal blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220162918 CN202646060U (en) | 2012-04-17 | 2012-04-17 | High pressure centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220162918 CN202646060U (en) | 2012-04-17 | 2012-04-17 | High pressure centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202646060U true CN202646060U (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220162918 Expired - Fee Related CN202646060U (en) | 2012-04-17 | 2012-04-17 | High pressure centrifugal fan |
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| Country | Link |
|---|---|
| CN (1) | CN202646060U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619769A (en) * | 2012-04-17 | 2012-08-01 | 江苏乘帆压缩机有限公司 | High-pressure centrifugal fan |
-
2012
- 2012-04-17 CN CN 201220162918 patent/CN202646060U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619769A (en) * | 2012-04-17 | 2012-08-01 | 江苏乘帆压缩机有限公司 | High-pressure centrifugal fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20180417 |