CN206130539U - Gas supply system fan protection device - Google Patents
Gas supply system fan protection device Download PDFInfo
- Publication number
- CN206130539U CN206130539U CN201621160625.5U CN201621160625U CN206130539U CN 206130539 U CN206130539 U CN 206130539U CN 201621160625 U CN201621160625 U CN 201621160625U CN 206130539 U CN206130539 U CN 206130539U
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- CN
- China
- Prior art keywords
- gas circuit
- fan
- supply system
- protection device
- blower fan
- 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.)
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Abstract
The utility model discloses a gas supply system fan protection device, including first fan and second fan, first fan is linked together through first gas circuit and the inside gas circuit of equipment, the second fan is linked together through second gas circuit and the inside gas circuit of equipment be equipped with the third gas circuit between first gas circuit and the second gas circuit, the third gas circuit is linked together with compressed air, and be equipped with first switching -over valve and second switching -over valve in first gas circuit and the second gas circuit respectively. The utility model discloses adding compressed air all the way in the gas circuit, connecting through switching -over valve and fan, in turn for system's air feed, compressed air passes through pressure regulating valve control atmospheric pressure, and the fan prevents through the pressure relieving valve that the fan from transshipping. Work in turn through compressed air and fan for the fan can be worked by intermittent type, prolongs the life of fan.
Description
Technical field
The utility model is related to a kind of air supply system fan protection device, and more particularly to a kind of industrial extraction-type dust exists
The air supply system fan protection device of line monitor.
Background technology
The air supply system of extraction-type dust on-line computing model is by diluting gas circuit and jet gas circuit is constituted.Traditional gas circuit structure
It is directly to be supplied by two blower fans；Blower fan is susceptible to damage in the case of long time continuous working, so needing to supply blower fan
Gas system is improved, and extends service life of fan.
Utility model content
Technical problem to be solved in the utility model is the defect for overcoming prior art, there is provided a kind of air supply system blower fan
Protection device, extends service life of fan.
To solve above-mentioned technical problem, the utility model provides a kind of air supply system fan protection device, including the first wind
Machine and the second blower fan, first blower fan is connected by the first gas circuit with the gas circuit of device interior, and second blower fan passes through
Second gas circuit is connected with the gas circuit of device interior, it is characterized in that, between first gas circuit and the second gas circuit the 3rd is provided with
Gas circuit, the 3rd gas circuit is connected with compressed air, and is respectively equipped with first in first gas circuit and the second gas circuit
Reversal valve and the second reversal valve.
A kind of aforesaid air supply system fan protection device, is characterized in that, divide in first gas circuit and the second gas circuit
It is not provided with the first pressure relieving valve and the second pressure relieving valve.
A kind of aforesaid air supply system fan protection device, is characterized in that, in the 3rd gas circuit the first pressure regulation is provided with
Valve and the second pressure regulator valve.
A kind of aforesaid air supply system fan protection device, is characterized in that, in second gas circuit isokinetic sampling is provided with
Ball valve.
A kind of aforesaid air supply system fan protection device, is characterized in that, the source of the gas of the compressed air is air compression
Machine, the air compressor provides the compressed air of 0.6～0.8Mpa.
The beneficial effect that the utility model is reached：Compressed air all the way is added in gas circuit, by reversal valve and blower fan
Connection, is in turn system supply, and compressed air controls air pressure by pressure regulator valve, and blower fan prevents blower fan from transshipping by pressure relieving valve.It is logical
Overcompression air and blower fan take turns to operate so that blower fan with discontinuous operation, can extend the service life of blower fan.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Specific embodiment
The utility model is further described below in conjunction with the accompanying drawings.Following examples are only used for clearly illustrating this
The technical scheme of utility model, and protection domain of the present utility model can not be limited with this.
As shown in figure 1, a kind of air supply system fan protection device, including the first blower fan 1 and the second blower fan 2, described first
Blower fan 1 is connected by the first gas circuit 3 with the gas circuit of device interior, and second blower fan 2 is by the second gas circuit 4 and device interior
Gas circuit be connected, be provided with the 3rd gas circuit 5 between the gas circuit 4 of first gas circuit 3 and second, the 3rd gas circuit 5 and compression
Air 6 is connected, and the source of the gas of the compressed air is air compressor, and the air compressor provides the pressure of 0.6～0.8Mpa
Contracting air.The first reversal valve 7 and the second reversal valve 8 are respectively equipped with the gas circuit 4 of first gas circuit 3 and second.
The first pressure relieving valve 9 and the second pressure relieving valve 10 are respectively equipped with the gas circuit 4 of first gas circuit 3 and second, blower fan leads to
Crossing pressure relieving valve prevents blower fan from transshipping.
The first pressure regulator valve 11 and the second pressure regulator valve 12 are provided with the 3rd gas circuit 5, compressed air passes through pressure regulator valve control
Air pressure processed.
Isokinetic sampling's ball valve 13 is provided with second gas circuit 4, according to the data-signal of external flowmeter, is automatically adjusted
Ball valve opens ratio, meets isokinetic sampling's flow rates demand.
Operation principle：
During normal work, blower fan is communicated with device interior gas circuit, and system is supplied by blower fan, when blower fan work is to setting
Between, reversal valve commutation makes compressed air communicate with device interior gas circuit, and system is temporarily supplied by compressed air, and blower fan is closed.Treat
Blower fan cooling is finished, reversal valve commutation, blower fan is communicated with device interior gas circuit, and blower fan opens supply.One is added in gas circuit
Road compressed air, is connected by reversal valve and blower fan, is in turn system supply, by taking turns to operate for compressed air and blower fan,
So that blower fan with discontinuous operation, can extend the service life of blower fan.
The above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of without departing from the utility model know-why, some improvement and deformation can also be made, these change
Enter and deform also to should be regarded as protection domain of the present utility model.
Claims (5)
1. a kind of air supply system fan protection device, including the first blower fan and the second blower fan, first blower fan passes through the first gas
Road is connected with the gas circuit of device interior, and second blower fan is connected by the second gas circuit with the gas circuit of device interior, and it is special
Levying is, the 3rd gas circuit is provided between first gas circuit and the second gas circuit, and the 3rd gas circuit is connected with compressed air, and
And it is respectively equipped with the first reversal valve and the second reversal valve in first gas circuit and the second gas circuit.
2. a kind of air supply system fan protection device according to claim 1, is characterized in that, in first gas circuit and
The first pressure relieving valve and the second pressure relieving valve are respectively equipped with two gas circuits.
3. a kind of air supply system fan protection device according to claim 1, is characterized in that, set in the 3rd gas circuit
There are the first pressure regulator valve and the second pressure regulator valve.
4. a kind of air supply system fan protection device according to claim 1, is characterized in that, set in second gas circuit
There is isokinetic sampling's ball valve.
5. a kind of air supply system fan protection device according to claim 1, is characterized in that, the source of the gas of the compressed air
For air compressor, the compressed air of 0.6～0.8Mpa of the air compressor offer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621160625.5U CN206130539U (en) | 2016-10-25 | 2016-10-25 | Gas supply system fan protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621160625.5U CN206130539U (en) | 2016-10-25 | 2016-10-25 | Gas supply system fan protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206130539U true CN206130539U (en) | 2017-04-26 |
Family
ID=58576649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621160625.5U Active CN206130539U (en) | 2016-10-25 | 2016-10-25 | Gas supply system fan protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206130539U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402655A (en) * | 2016-10-25 | 2017-02-15 | 苏州曼德克光电有限公司 | Draught fan protector of air-supply system |
| CN111595609A (en) * | 2020-06-19 | 2020-08-28 | 中国计量科学研究院 | Respiratory rhythm generating device, detection system with same and detection method |
-
2016
- 2016-10-25 CN CN201621160625.5U patent/CN206130539U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402655A (en) * | 2016-10-25 | 2017-02-15 | 苏州曼德克光电有限公司 | Draught fan protector of air-supply system |
| CN111595609A (en) * | 2020-06-19 | 2020-08-28 | 中国计量科学研究院 | Respiratory rhythm generating device, detection system with same and detection method |
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