CN2472077Y - Spring gas lock - Google Patents
Spring gas lock Download PDFInfo
- Publication number
- CN2472077Y CN2472077Y CN 01220552 CN01220552U CN2472077Y CN 2472077 Y CN2472077 Y CN 2472077Y CN 01220552 CN01220552 CN 01220552 CN 01220552 U CN01220552 U CN 01220552U CN 2472077 Y CN2472077 Y CN 2472077Y
- Authority
- CN
- China
- Prior art keywords
- spring
- door
- circular cone
- gas lock
- powder
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to spring lock device, which comprises a casing, a powder falling tube, a cone gate and a spring; wherein, the spring, which is positioned at the upside of the casing, is connected with a bracket at the underside of the cone gate by a pull rod, and the cone gate is fixedly connected with the bracket. The utility model has the advantages of simple structure, stable performance, convenient operation and good sealing performance.
Description
The utility model relates to the parts of the pulverized coal preparation system of thermal power plant's coal-burning boiler, generally is used for powder retrieving pipe, the powder sinking tube under thick, the pulverized-coal collector, the ash tube of dry collector.
The purposes of flapper is when preventing that coal dust or soot particle from entering another pressure limit by a certain pressure limit, and air channelling phenomenon takes place, and keeps the smooth circulation of powder.At present, the kind that is used for this respect flapper has: 1 bevel-type flapper; 2 ramp type flappers; 3 ball-type flappers; 4 Spring gas locks.In these several flappers, bevel-type flapper, ramp type flapper are Weight type equipment, have many drawbacks, and the someone has released ball-type flapper and Spring gas lock for this reason.The ball-type flapper is on the basis of tapered flapper, the tapered door of barrier element is changed into the ball-type door, but be used for operating the ball-type door by weight, be in operation, because the percussion of the effect of inertia of weight and air-flow and the powder that falls, can make weight swing big, move very not steadily, damage mechanical part etc. easily.Spring gas lock has fundamentally changed the operating principle of flapper, has cancelled lever and weight, and barrier element has adopted under the awl cap and added spring, has simplified device structure, has improved reliability of operation.What CN2355821Y announced is exactly a kind of spring flapper, and the spring of this equipment is mounted in the inside of seal casinghousing, adjusts inconvenient, in addition, spring is installed in inside, because of the coal dust that flows in the equipment is understood deposition in spring, make the spring action bad, the normal operation of influence lock gas flapper.
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of Spring gas lock is provided, and it not only has simple in structure, the advantage that operates steadily, and adjust more convenient operation, sealing is more reliable.
The utility model is achieved through the following technical solutions its purpose.A kind of Spring gas lock, is positioned at the circular cone door of powder sinking tube, the spring that links to each other with the circular cone door at the powder sinking tube that comprises seal casinghousing, is connected with housing and is communicated with pulverized coal preparation system.Its spring is arranged on the outside of housing, be positioned at the housing top cover above, spring is connected with the awl door bracket that is positioned at circular cone student side by pull bar; Circular cone door and awl door bracket are fixed together; Its seal casinghousing is connected by spacer flanger with conical lower house by cylindrical upper shell; Its spring has three, and it is uniform to be 120 degree along the top cover of upper shell.And housing is provided with form thereon.
The utility model compared with prior art because spring is arranged on hull outside, makes the adjustment of giving tight power very convenient, has avoided the spring accumulated powder, has guaranteed the reliability of action; Because spring is uniform, makes its carriage drive the circular cone door and move steadily; Therefore, have simple in structure, operate steadily, the advantage of easy to operate, good seal performance.
Below by embodiment, be further described in conjunction with the accompanying drawings.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the vertical view of Fig. 1.
As shown in Figure 1, 2, a kind of Spring gas lock, its structure comprises seal casinghousing, powder sinking tube and air-lock device.Seal casinghousing is linked together by spacer flanger 4 by cylindrical upper shell 2 and conical lower house 3.Material blanking tube 1 is connected with upper shell 2 and is communicated with pulverized coal preparation system.Air-lock device is made up of resistance shelves element circular cone door 5, awl door bracket 6, spring 7, pull bar 8, loading displacement indicator 9, adjustment nut 10, circular cone door 5 is positioned at the bottom of material blanking tube 1, it is fixedlyed connected with awl door bracket 6, three springs 7 place hull outside, being 120 degree is distributed on upper casing and stops on 2 top covers, each spring is connected with awl door bracket 6 by the pull bar 8 at center, also be provided with the loading displacement indicator 9 that can represent circular cone door opening on spring, spring top has and is used for regulating the adjustment nut 10 that gives tight power.On the top cover of upper shell, also be provided with lucite form 11, the opening of being convenient to observe circular cone door 5.
The course of work of the present utility model:
When the flapper operate as normal, the tight power effect of giving owing to spring 7 should keep one section powder post on the circular cone door 5, when the powder post is enough high, powder weight is during greater than the elastic force of spring, and the circular cone door moves down, powder flows downward, because the sealing function of powder, air-flow can't pass through flapper; When powder flows downward, the powder post reduces, and spring is pressed to powder sinking tube 1 with the circular cone door again.When air-flow and powder are stablized, maintain a certain distance between circular cone door 5 and the powder sinking tube 1, make powder fall continuously, powder post height is certain, and air-flow can not scurried in the powder sinking tube by pipeline under the lock gas, and the height of powder post can be realized by the elastic force of spring.
Claims (4)
1, a kind of Spring gas lock, comprise: seal casinghousing, the powder sinking tube (1) that is connected with housing and is communicated with pulverized coal preparation system, be positioned at the circular cone door (5) of powder sinking tube, the spring (7) that is connected with the circular cone door, it is characterized in that described spring (7) places the top of housing, spring (7) is connected with the awl door bracket (6) that is positioned at circular cone door (5) below by pull bar (8), and circular cone door (5) is fixedlyed connected with awl door bracket (6).
2,, it is characterized in that described seal casinghousing by conical lower house (3) under the cylindrical upper shell (2), connects by spacer flanger (4) according to the described Spring gas lock of claim 1.
3, according to the described Spring gas lock of claim 1, it is characterized in that described spring (7) has three, it is uniform to be 120 degree along the top cover of upper shell (2).
4,, it is characterized in that the top cover of described upper shell (2) is provided with form (11) according to the described Spring gas lock of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01220552 CN2472077Y (en) | 2001-03-30 | 2001-03-30 | Spring gas lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01220552 CN2472077Y (en) | 2001-03-30 | 2001-03-30 | Spring gas lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2472077Y true CN2472077Y (en) | 2002-01-16 |
Family
ID=33638118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01220552 Expired - Fee Related CN2472077Y (en) | 2001-03-30 | 2001-03-30 | Spring gas lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2472077Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103506210A (en) * | 2013-09-10 | 2014-01-15 | 辽宁龙电伟业新能科技有限公司 | Coal pulverizer with double separator |
| CN104627694A (en) * | 2014-12-30 | 2015-05-20 | 刘德智 | Device for converting kinetic energy and gravitational potential energy to hydraulic energy in material conveying |
-
2001
- 2001-03-30 CN CN 01220552 patent/CN2472077Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103506210A (en) * | 2013-09-10 | 2014-01-15 | 辽宁龙电伟业新能科技有限公司 | Coal pulverizer with double separator |
| CN103506210B (en) * | 2013-09-10 | 2015-07-08 | 辽宁龙电伟业新能科技有限公司 | Coal pulverizer with double separator |
| CN104627694A (en) * | 2014-12-30 | 2015-05-20 | 刘德智 | Device for converting kinetic energy and gravitational potential energy to hydraulic energy in material conveying |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |