CN203454186U - Snow removal device with air inlet filter screen - Google Patents
Snow removal device with air inlet filter screen Download PDFInfo
- Publication number
- CN203454186U CN203454186U CN201320496522.6U CN201320496522U CN203454186U CN 203454186 U CN203454186 U CN 203454186U CN 201320496522 U CN201320496522 U CN 201320496522U CN 203454186 U CN203454186 U CN 203454186U
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- CN
- China
- Prior art keywords
- filter screen
- air intake
- intake vent
- vent filter
- air inlet
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Abstract
The utility model provides a snow removal device with an air inlet filter screen. The snow removal device comprises the air inlet filter screen and a steam heating pipe, wherein the steam heating pipe is introduced from an auxiliary steam header; the pipe wall of the steam heating pipe is fixedly welded to the air inlet filter screen; an opening valve is arranged on the steam heating pipe and is positioned at the upstream part of the air inlet filter screen. According to the snow removal device with the air inlet filter screen, the steam heating pipe and the air inlet filter screen are fixedly welded into a whole body, a steam heat source introduced from the auxiliary steam header is conducted to the air inlet filter screen, and the air inlet filter screen becomes a heating body to timely melt accumulated snow attached to the air inlet filter screen, so that the normal operation of the air inlet filter screen is ensured.
Description
Technical field
The utility model relates to a kind of filter screen snow removing structure, is specifically related to the snow-removing device of thermal power plant's air intake vent filter screen.
Background technology
Air intake vent (wind and Secondary Air) is two important parts of thermal power plant air and flue system, one time wind is divided into again heat primary air and a cold wind, blower fan is sent into a self-heating circle air part in air preheater and is heated, hot-air after heating is sent into coal pulverizer for delivery of, dry coal dust, be called heat primary air, another part does not enter the air of air preheater for regulating heat primary air temperature, is called a cold wind.Secondary Air is that pressure fan will heat in nature air air amount preheater, and this part hot-air is sent to burner hearth for overheavy firing.And the entrance of wind and Secondary Air is all provided with filter screen, during snowy day in winter, wind and Secondary Air inlet screen often adsorb one deck accumulated snow, can form for a long time rampart, stop up filter screen, thereby affect the just conventional air quantity of a Secondary Air.
Given this, be necessary to design a kind of new air intake vent filter screen snow-removing device.
Utility model content
The technical problems to be solved in the utility model is: a kind of device of can be fast, carrying out in time the snow removing of air intake vent filter screen is provided.
For achieving the above object, the utility model provides following technical scheme: the steam heating pipe that a kind of air intake vent filter screen snow-removing device includes air port filter screen and draws from auxiliary vapour header, the tube wall of described steam heating pipe is welded on air intake vent filter screen, and described steam heating pipe is provided with open valve in the upstream of air intake vent filter screen.
Further, described air intake vent filter screen is tubular, and described steam heating pipe is divided into two sections, circumferentially to surround described air intake vent filter screen junction endways, relief valve is set.
Further, described steam heating pipe is wave extension on the vertical direction of air intake vent filter screen barrel.
Further, described steam heating tube wall has multiple spot welding to be fixed in air intake vent filter screen.
Further, the rectangular tubular of described air intake vent filter screen.
Further, described air intake vent filter screen is cylindrical tube shape.
Compared with prior art, the utility model at least has the following advantages: described air intake vent filter screen snow-removing device, steam heating pipe and air intake vent filter screen are welded in to one, the steam source that auxiliary vapour header is attracted conducts on filter screen, make it become a heater, melt and be attached to the accumulated snow on filter screen in time, guarantee the normal operation of filter screen.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model air intake vent filter screen snow-removing device.
Fig. 2 is the structural representation of another angle of the utility model air intake vent filter screen snow-removing device.
The specific embodiment
Refer to Fig. 1 and Fig. 2, below in conjunction with accompanying drawing, the utility model air intake vent filter screen snow-removing device is described in detail.
The utility model air intake vent filter screen snow-removing device includes the screen pack of wind of air port filter screen 1(and Secondary Air) and the steam heating pipe 3 of drawing from auxiliary vapour header 2, the tube wall of described steam heating pipe 3 is welded on air intake vent filter screen 1, and described steam heating pipe 3 is provided with open valve 4 in the upstream of air intake vent filter screen 1.By steam heating pipe 3 and air intake vent filter screen 1 are welded in to one, the steam source that auxiliary vapour header 2 is attracted is passed on air intake vent filter screen 1, make it become a heater, the snow that drops on filter screen with air-flow is melted very soon, so filter screen can not adsorb accumulated snow, form rampart, stop up filter screen, also can not affect the normal soakage of a Secondary Air.The aperture of described open valve 4 can be according to the accumulated snow snow removing situation free adjustment of air intake vent filter screen 1.
Described air intake vent filter screen 1 top is provided with taper rain gear 5.The present embodiment air intake vent filter screen 1 rectangular tubular, described steam heating pipe 3 turns to two section 31 in 1 punishment of air intake vent filter screen, 32 circumferentially to surround described air intake vent filter screen 1 junction endways, that relief valve 6(is set is normally closed, crack in use, makes steam in steam heating pipe in flow regime).Described steam heating pipe 3 is wave and extends on the vertical direction of air intake vent filter screen 1 barrel.No matter being axial encirclement structure, or the wave extending design of vertical direction, is all for as far as possible extensively and thermal source is delivered on air intake vent filter screen equably, improves snow melt effect.Certainly, described steam heating pipe 3 tube walls have multiple spot welding to be fixed in air intake vent filter screen 1, and more contact can bring more conduction.
In sum, these are only preferred embodiment of the present utility model, should not limit scope of the present utility model with this.For example, the rectangular tubular of air intake vent filter screen described in the present embodiment, in some other embodiment, air intake vent filter screen also can be cylindrical tube shape, rhombus tubular etc., and this can realize technique effect of the present utility model equally.Be that every simple equivalence of doing according to the utility model claims and description changes and modifies, all should still belong in the scope that the utility model patent contains.
Claims (6)
1. an air intake vent filter screen snow-removing device, the steam heating pipe that it includes air port filter screen and draws from auxiliary vapour header, is characterized in that: the tube wall of described steam heating pipe is welded on air intake vent filter screen, described steam heating pipe is provided with open valve in the upstream of air intake vent filter screen.
2. air intake vent filter screen snow-removing device according to claim 1, is characterized in that: described air intake vent filter screen is tubular, and described steam heating pipe is divided into two sections, circumferentially to surround described air intake vent filter screen junction endways, relief valve is set.
3. air intake vent filter screen snow-removing device according to claim 2, is characterized in that: described steam heating pipe is wave and extends on the vertical direction of air intake vent filter screen barrel.
4. air intake vent filter screen snow-removing device according to claim 3, is characterized in that: described steam heating tube wall has multiple spot welding to be fixed in air intake vent filter screen.
5. according to the air intake vent filter screen snow-removing device described in any one in claim 2-4, it is characterized in that: the rectangular tubular of described air intake vent filter screen.
6. according to the air intake vent filter screen snow-removing device described in any one in claim 2-4, it is characterized in that: described air intake vent filter screen is cylindrical tube shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320496522.6U CN203454186U (en) | 2013-08-15 | 2013-08-15 | Snow removal device with air inlet filter screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320496522.6U CN203454186U (en) | 2013-08-15 | 2013-08-15 | Snow removal device with air inlet filter screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203454186U true CN203454186U (en) | 2014-02-26 |
Family
ID=50134058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320496522.6U Expired - Lifetime CN203454186U (en) | 2013-08-15 | 2013-08-15 | Snow removal device with air inlet filter screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203454186U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112880965A (en) * | 2021-04-14 | 2021-06-01 | 中南大学 | Wind and snow separating device of bogie snow icing wind tunnel test system |
| CN113566268A (en) * | 2021-05-27 | 2021-10-29 | 李福江 | Pipeline for heating |
-
2013
- 2013-08-15 CN CN201320496522.6U patent/CN203454186U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112880965A (en) * | 2021-04-14 | 2021-06-01 | 中南大学 | Wind and snow separating device of bogie snow icing wind tunnel test system |
| CN112880965B (en) * | 2021-04-14 | 2022-05-17 | 中南大学 | Wind and snow separating device of bogie snow icing wind tunnel test system |
| CN113566268A (en) * | 2021-05-27 | 2021-10-29 | 李福江 | Pipeline for heating |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140226 |