CN204828017U - Axial fan gas sealing system - Google Patents
Axial fan gas sealing system Download PDFInfo
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- CN204828017U CN204828017U CN201520632667.3U CN201520632667U CN204828017U CN 204828017 U CN204828017 U CN 204828017U CN 201520632667 U CN201520632667 U CN 201520632667U CN 204828017 U CN204828017 U CN 204828017U
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- pipeline
- gas
- atmoseal
- axial
- axial fan
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Abstract
The utility model provides an axial fan gas sealing system, relates to an axial fan gas sealing system. The utility model discloses a solution is at the axial fan during operation, and the fan rotor is worn out the shutoff of cylinder position and tight or do not do the shutoff, and affect using compressed air source's product quality still has revealing of high -quality gas, leads to the fact certain waste, sets up supplementary plugging device, the problem of the investment of increase equipment and system management's complexity. An axial fan gas sealing system includes the trunk line, automatic regulating valve, the choke valve, preceding atmoseal pipeline, back atmoseal pipeline and manometer, the one end of trunk line and the exhaust chamber of axial fan outer shell intercommunication, the other end of trunk line communicates with the one end of preceding atmoseal pipeline and the one end of back atmoseal pipeline respectively, the other end and the chamber sealing connection that before supplies gas of preceding atmoseal pipeline, the other end of the back atmoseal pipeline chamber sealing connection that supplies gas after with, automatic regulating valve and choke valve has set gradually on the trunk line, the manometer sets up in the front on the atmoseal pipeline. The utility model is used for axial fan.
Description
Technical field
The utility model relates to a kind of gas sealing system, is specifically related to a kind of axial-flow blower gas sealing system.
Background technique
Existing axial-flow blower as shown in Figure of description 4, generally by motor stator rotating speed type or steam turbine variable speed or determine rotating speed type drag rotary work, by the suction port suction gas of axial-flow blower, by relief opening Exhaust Gas, and be sent to gas consumer.When axial-flow blower suction gas, tiny structure is formed in the air-inlet cavity of front air sealing, then now having ambient air at front air sealing place is inhaled in axial-flow blower air-inlet cavity, and now leaked-in air does not pass through strict filtration, the quality of air can difference very, if now bearing housing has oil smoke to discharge, also can be inhaled in axial-flow blower, so the quality of air can be more severe, and this just has influence on quality of supplying gas, air through axial-flow blower can be compressed to a certain pressure and temperature, the pressurized air higher than local barometric pressure can from the exhaust cavity in cylinder, pressure high temperature hot gas in exhaust cavity can flow to balance chamber through several groups of sealing sealing glands, and balance chamber and air inlet chamber are connected by balancing female pipe, so the slight pressure of balance chamber is higher than the pressure of ambient air, but well below exhaust pressure, therefore after air sealing place also have pressurized gas and to bleed air, the pressurized gas now spilt is the gas of high-quality, certain waste can be caused, do not allow have pressurized gas to spill herein.
In order to prevent air from being sucked axial-flow blower by front air sealing, being discharged to air by rear air sealing, stop with regard to needing a kind of special seal arrangement, this covering device is exactly the gas sealing system of axial-flow blower.If this cover gas sealing system is provided by other Computer Aided Design, then can increase many pipelines, valve, instrument and booster station, not only increase the investment of equipment, too increase the complexity of axial fan system management.
Model utility content
The utility model is for solving when axial-flow blower works, fan rotor passes the shutoff of cylinder position and sternly or does not do shutoff, impact uses the quality of product of compressed gas source, also have the leakage of high-quality gas, cause certain waste, auxiliary blocking device is set, the problem of the investment of increasing device and the complexity of systems management, and then proposes a kind of axial-flow blower gas sealing system.
The utility model is the technological scheme taked that solves the problem: a kind of axial-flow blower gas sealing system comprises main pipeline, automatic regulating valve, throttle valve, front sealing gland pipeline, rear sealing gland pipeline and pressure gauge, one end of main pipeline is communicated with the exhaust cavity of axial-flow blower outer shell, the other end of main pipeline is communicated with one end of rear sealing gland pipeline with one end of front sealing gland pipeline respectively, the other end of front sealing gland pipeline and before chamber of supplying gas be tightly connected, the other end of rear sealing gland pipeline with after chamber of supplying gas be tightly connected, main pipeline is disposed with automatic regulating valve and throttle valve, pressure gauge is arranged on front sealing gland pipeline.
The beneficial effects of the utility model are: the utility model is the gas after utilizing axial-flow blower to compress, pass through main pipeline, gas is incorporated in gas sealing system, and by two branch lines, front sealing gland pipeline and rear sealing gland pipeline respectively with front supply gas chamber and after chamber of supplying gas be tightly connected, whole plenum system is sealed, and automatic regulating valve can ensure the normal operation of system, throttle valve can ensure do not have unnecessary gas to send into gas sealing system, saves air feed.Gas sealing system structure of the present utility model is simple, easy to adjust, and can ensure to adjust dynamically constantly, eliminate complicated auxiliary device (pipeline and gas distribution station as source of the gas), also more do not adopt the axial-flow blower of gas sealing system to ensure that the quality of air feed simultaneously.
Accompanying drawing explanation
Fig. 1 is plan view of the present utility model, and Fig. 2 is the worm's eye view of Fig. 1, and Fig. 3 is the left view of Fig. 1, and Fig. 4 is the overall structure schematic diagram of axial-flow blower.
Embodiment
Embodiment one: composition graphs 1, Fig. 2, Fig. 3 and Fig. 4 illustrates present embodiment, described in present embodiment, a kind of axial-flow blower gas sealing system comprises main pipeline 1, automatic regulating valve 2, throttle valve 3, front sealing gland pipeline 4, rear sealing gland pipeline 5 and pressure gauge 6, one end of main pipeline 1 is communicated with the exhaust cavity 8-1 of axial-flow blower outer shell 8, the other end of main pipeline 1 is communicated with one end of rear sealing gland pipeline 5 with one end of front sealing gland pipeline 4 respectively, the other end of front sealing gland pipeline 4 and before the chamber 8-2 that supplies gas be tightly connected, the other end of rear sealing gland pipeline 5 with after the chamber 8-3 that supplies gas be tightly connected, main pipeline 1 is disposed with automatic regulating valve 2 and throttle valve 3, pressure gauge 6 is arranged on front sealing gland pipeline 4.
In the utility model, outlet pressure before automatic pressure regulator 2 dynamic conditioning on sealing gland pipeline 4, when the force value adjusting to the pressure gauge 6 on front sealing gland pipeline 4 is than local barometric pressure height 0.02MPa, automatic pressure regulator 2 no longer action, and being stabilized in this force value work, throttle valve 3 is the air demands controlling supply gas sealing system, and throttle valve 3 is adjusted and is set to the supply maximum air demand position of gas sealing system, do not have unnecessary gas to send into gas sealing system, save air feed.
Embodiment two: composition graphs 1 and Fig. 2 illustrate present embodiment, described in present embodiment, a kind of axial-flow blower gas sealing system also comprises stop valve 7, stop valve 7 is arranged on main pipeline 1, and stop valve 7 sets gradually with the moving direction of automatic regulating valve 2 along air-flow.Setting like this, stop valve 7 is often offered and is put, and the setting of stop valve 7 uses in order to during system overhaul.Other compositions are identical with embodiment one with annexation.
Embodiment three: composition graphs 1 and Fig. 2 illustrate present embodiment, before described in present embodiment, sealing gland pipeline 4 is connected by flange seal with the chamber 8-2 that front supplies gas, rear sealing gland pipeline 5 with after the chamber 8-3 that supplies gas be connected by flange seal.Setting like this, maintenance for convenience detach.Other compositions are identical with embodiment one or two with annexation.
Working principle
When axial-flow blower runs, at axial-flow blower gas sealing system main line 1 upper outlet, there is a stop valve 7 at place, this stop valve 7 is often opened, use when gas sealing system is overhauled, an automatic pressure regulator 2 and throttle valve 3 is had after the stop valve 6 of main line 1, main line 1 is divided into front sealing gland pipeline 4 and rear sealing gland pipeline 5 subsequently, front sealing gland pipeline 4 is supplied gas for front air sealing, supply gas before gas being delivered to front air sealing place in the 8-2 of chamber, the gas sent into flows in blower fan on a road in the 8-2 of chamber of front supplying gas, to bleed air from outside sealing gland in another road, rear sealing gland pipeline 5 is supplied gas for rear air sealing, being delivered to by gas after in rear air sealing supplies gas in the 8-3 of chamber, the gas sent into after a road in the 8-3 of chamber of supplying gas flow in blower fan, to bleed air from outside sealing gland in another road.Outlet pressure on automatic pressure regulator 2 dynamic conditioning sealing gland pipeline, when the force value adjusting to the pressure gauge 6 on front sealing gland pipeline 4 is than local barometric pressure height 0.02MPa, automatic pressure regulator 2 no longer action, and be stabilized in this force value work, throttle valve 3 is the air demands controlling supply gas sealing system, throttle valve 3 is adjusted and is set to the supply maximum air demand position of gas sealing system, does not have unnecessary gas to send into gas sealing system, saves air feed.The gas sealing system structure of this cover axial-flow blower is simple, easy to adjust, and can ensure to adjust dynamically constantly, eliminates pipeline and the gas distribution station of complicated auxiliary source of the gas, does not also more adopt the axial-flow blower of gas sealing system to ensure that the quality of air feed simultaneously.
Claims (3)
1. an axial-flow blower gas sealing system, it is characterized in that: a kind of axial-flow blower gas sealing system comprises main pipeline (1), automatic regulating valve (2), throttle valve (3), front sealing gland pipeline (4), rear sealing gland pipeline (5) and pressure gauge (6), one end of main pipeline (1) is communicated with the exhaust cavity (8-1) of axial-flow blower outer shell (8), the other end of main pipeline (1) is communicated with one end of rear sealing gland pipeline (5) with one end of front sealing gland pipeline (4) respectively, the other end of front sealing gland pipeline (4) and before chamber (8-2) of supplying gas be tightly connected, the other end of rear sealing gland pipeline (5) with after chamber (8-3) of supplying gas be tightly connected, main pipeline (1) is disposed with automatic regulating valve (2) and throttle valve (3), pressure gauge (6) is arranged on front sealing gland pipeline (4).
2. a kind of axial-flow blower gas sealing system according to claim 1, it is characterized in that: a kind of axial-flow blower gas sealing system also comprises stop valve (7), stop valve (7) is arranged on main pipeline (1), and stop valve (7) sets gradually with the moving direction of automatic regulating valve (2) along air-flow.
3. a kind of axial-flow blower gas sealing system according to claim 1 and 2, it is characterized in that: front sealing gland pipeline (4) is connected by flange seal with chamber of front supplying gas (8-2), rear sealing gland pipeline (5) with after chamber (8-3) of supplying gas be connected by flange seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520632667.3U CN204828017U (en) | 2015-08-20 | 2015-08-20 | Axial fan gas sealing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520632667.3U CN204828017U (en) | 2015-08-20 | 2015-08-20 | Axial fan gas sealing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204828017U true CN204828017U (en) | 2015-12-02 |
Family
ID=54685625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520632667.3U Active CN204828017U (en) | 2015-08-20 | 2015-08-20 | Axial fan gas sealing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204828017U (en) |
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2015
- 2015-08-20 CN CN201520632667.3U patent/CN204828017U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |