CN206111604U - Centrifugal gas compressor - Google Patents
Centrifugal gas compressor Download PDFInfo
- Publication number
- CN206111604U CN206111604U CN201621050653.1U CN201621050653U CN206111604U CN 206111604 U CN206111604 U CN 206111604U CN 201621050653 U CN201621050653 U CN 201621050653U CN 206111604 U CN206111604 U CN 206111604U
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- gas compressor
- speed
- impeller
- centrifugal
- high speed
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Abstract
The utility model discloses a centrifugal gas compressor passes fixed be provided with water conservancy diversion nut (12) and centrifugal impeller (11) of gas compressor in the one end of high -speed rotor shaft (27), water conservancy diversion nut (12) set up on impeller (11) top, install in same one side with spiral case (14) the parallel arrangement that gives vent to anger air inlet volute (13), air inside managing to find time through the vacuum pump for the operation gas purity of gas compressor system inside is higher, prevents the gaseous contamination, has effectively satisfied operation requirement high compression ratio and large -traffic.
Description
Technical field
This utility model is related to electric gas Compressor Technology field, more particularly to a kind of centrifugal gas compressor.
Background technology
Current centrifugal gas compressor in order to reach high compression ratio, due to by variable frequency high-speed motor rotating speed system
About, the general technical scheme using Multi-stage transmission, needs arrange gear shift between variable frequency high-speed motor and gas compressor
Case, and some gas compressed degrees of purity are required with higher industry, the lubricating oil in change speed gear box is during high-speed cruising
Inevitable appearance volatilization causes secondary pollution, and system due to the addition of variable-speed unit to the gas to be compressed, and volume greatly, is made an uproar
Sound is big, high energy consumption, and efficiency is general, does not reach energy-efficient, the purpose of environmental protection.
In order to reduce the pollution to compressed gas, compression ratio is improved, energy-efficient effect can adopt pneumatic compression
Unit is connected directly between the technical scheme on variable frequency high-speed motor high speed rotor shafts, and this requires that variable frequency high-speed motor must have
Higher rotating speed, existing variable frequency high-speed motor rotating speed is up to 15000 on market, but cannot meet some high-end fields
Such as CO2 laser instrument, pharmaceutical industry, the requirement of new forms of energy environmental protection industry (epi) application；The high rotating speed of motor is due between rotary part, revolving
The heat produced by friction between rotation member and air, the high-speed bearing for causing variable frequency high-speed motor generates heat seriously, affects just
Normal operational efficiency, if lowered the temperature to motor and high-speed bearing not in time, it is possible to cause the consequence of burn-down of electric motor.
Utility model content
To solve the above problems, the utility model proposes a kind of centrifugal gas compressor, meets high-pure gas
Compression requirements.
Realize that above-mentioned purpose the technical solution of the utility model is as follows：
A kind of centrifugal gas compressor, including gas impeller, flow guiding nut, air inlet volute, closure, high speed rotor shafts,
Outlet spiral case and sealing ring, it is characterised in that the connection inlet ambient of motor is provided with closure, are arranged around the closure
Sealing ring；Described one end in high speed rotor shafts is fixedly installed flow guiding nut and impeller, the air inlet volute and outlet spiral case
It is set in parallel in the same side.
Preferably, described outlet spiral case is dual pathways outlet.
Preferably, described high speed rotor shafts are high speed and precision fluid dynamic bearing.
Preferably, closure is labyrinth seal lid, and described sealing ring is O-ring seal.
The beneficial effects of the utility model are, by vacuum pump depletion inner air so that inside gas compressor system
Operation gas purity it is higher, prevent gaseous contamination, effectively meet use requirement high compression ratio and big flow.Compact conformation,
Energy consumption is low, and noise is little, effectively increases compression ratio, and it is simply efficient that the import and export of compressed gas are set in parallel in the same side.
Description of the drawings
Fig. 1 is this utility model and direct-connected motor assembling schematic diagram
Fig. 2 is this utility model structural representation；
Fig. 3 is blower fan shell structure schematic diagram of the present utility model
Fig. 4 is centrifugal impeller structure schematic diagram of the present utility model
In accompanying drawing, 1- gas compressors, 11- impellers, 12- flow guiding nuts, 13- air inlet volutes, 14- outlet spiral cases, 15- is close
Seal, 2- variable frequency high-speed motors, 21- water inlets, 22- outlets, 23- discharge openings, 24- aspirating holes, 25- closures, 26- flanges
Plate, 27- high speed rotor shafts, 28- flange water-cooling systems, 29- high-speed bearings.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.It should be appreciated that specific embodiment described herein is only to explain
This utility model, is not used to limit this utility model.
With reference to Fig. 1, a kind of centrifugal gas compressor that this utility model is related to, by vacuum pump depletion inner air,
So that the operation gas purity inside gas compressor system is higher, gaseous contamination is prevented, effectively meet use requirement high pressure
Contracting ratio and big flow.Described centrifugal gas compressor, including mixed gas compressor 1 and variable frequency high-speed motor 2, gaseous mixture
Gas compressor 1 includes impeller 11, flow guiding nut 12, air inlet volute 13, outlet spiral case 14 and O-ring seal 15；The frequency conversion is high
Speed motor 2 includes water inlet 21, outlet 22, discharge opening 23, aspirating hole 24, labyrinth seal lid 25, adpting flange plate 26 and height
Fast armature spindle 27, flange cooling water-cooling system 28, SKF high-speed bearings 29；Described mixed gas compressor 1 passes through high speed rotor
Axle 27 and being pressed on adpting flange plate 26 is connected with variable frequency high-speed motor 2, the gas compressor 1 and variable frequency high-speed motor 2
Connection inlet ambient be additionally provided with labyrinth seal lid 25, O-ring seal 15, the surrounding of labyrinth seal lid 25 arranges O-shaped close
Seal 15；Described one end in high speed rotor shafts 27 is fixedly installed flow guiding nut 12 and impeller 11, institute through gas compressor
The flow guiding nut 12 stated is arranged on the top of impeller 11, and the air inlet volute 13 is set in parallel in the same side with outlet spiral case 14；Institute
State the inside of variable frequency high-speed motor 2 and rotor surrounding is provided with flange water-cooling system 28, outside side is provided with water inlet 21
With the discharge opening 23 of outlet 22 and at least one, described aspirating hole 24 is connected with the inner space of variable frequency high-speed motor 2.
Referring to Fig. 4, centrifugal impeller 11 is designed using three-dimensional flow twayblade, and aluminum alloy material, energy is big, efficiency high.
Referring to Fig. 3, the blower fan chamber shell in air channel is designed with, outlet spiral case 14 is dual pathways outlet, at a high speed, efficiency high, energy consumption
It is little.
High speed rotor shafts 27 are high speed and precision fluid dynamic bearing.
Frequency Converter Control variable frequency high-speed motor 2, flow, pressure output effectively controllableization.
Cooling water temperature≤40 DEG C in flange water-cooling system 28, water pressure of cooling water≤1.2MPa；Cooling water flow >=2L/
min。
The hot temperature element of the pre-buried Pt100 platinum of stator winding of variable frequency high-speed motor 2, totally 3, per phase 1, monitor in real time is high
The temperature rise of fast bearing, the safe operation of effective control high-speed electric expreess locomotive.From in terms of axle stretch end, motor presses UVW phase sequences to variable frequency high-speed motor 2
During wiring, motor rotates in the direction of the clock.
By the setting of centrifugal gas compressor and the direct-connected scheme of variable frequency high-speed motor, gearbox designs are prevented and have brought
Pollution, improve compression ratio, the import and export of compressed gas are set in parallel in the same side, efficiency up to 95.3%, by becoming
Frequency high-speed electric expreess locomotive inside evacuation and cooling water circulation, substantially increase motor speed, up to 26000r/min.
Claims (4)
1. a kind of centrifugal gas compressor, including gas impeller (11), flow guiding nut (12), air inlet volute (13), closure
(25), high speed rotor shafts (27), outlet spiral case (14) and sealing ring (15), it is characterised in that the connection inlet ambient of motor sets
Closure (25) is equipped with, sealing ring (15) is set around the closure (25)；Described one end in high speed rotor shafts (27) is consolidated
Surely flow guiding nut (12) and impeller (11) are provided with, the air inlet volute (13) is set in parallel in same with outlet spiral case (14)
Side.
2. centrifugal gas compressor according to claim 1, it is characterised in that：Described outlet spiral case (14) is bilateral
Road outlet.
3. centrifugal gas compressor according to claim 1, it is characterised in that：Described high speed rotor shafts (27) are essence
Close high speed fluid dynamic bearing.
4. centrifugal gas compressor according to claim 1, it is characterised in that：Described closure (25) is close for comb
Capping, described sealing ring (15) is O-ring seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621050653.1U CN206111604U (en) | 2016-09-12 | 2016-09-12 | Centrifugal gas compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621050653.1U CN206111604U (en) | 2016-09-12 | 2016-09-12 | Centrifugal gas compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206111604U true CN206111604U (en) | 2017-04-19 |
Family
ID=58519972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621050653.1U Active CN206111604U (en) | 2016-09-12 | 2016-09-12 | Centrifugal gas compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206111604U (en) |
-
2016
- 2016-09-12 CN CN201621050653.1U patent/CN206111604U/en active Active
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