CN203060992U - Metal corrugated pipe for pulse valve - Google Patents
Metal corrugated pipe for pulse valve Download PDFInfo
- Publication number
- CN203060992U CN203060992U CN 201220724635 CN201220724635U CN203060992U CN 203060992 U CN203060992 U CN 203060992U CN 201220724635 CN201220724635 CN 201220724635 CN 201220724635 U CN201220724635 U CN 201220724635U CN 203060992 U CN203060992 U CN 203060992U
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- CN
- China
- Prior art keywords
- pulse valve
- drive rod
- joint
- driving rod
- mounting flange
- 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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- Diaphragms And Bellows (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model relates to a metal corrugated pipe for a pulse valve, and the metal corrugated pipe is provided with three corrugated sections and a driving rod, wherein the three corrugated sections are connected in sequence through a connection ring; the driving rod passes through inner holes of various corrugated sections and can move in a reciprocating manner under driving of a reciprocating cylinder; one end of the driving rod is connected with the reciprocating cylinder and external equipment through a connection thread; the other end of the driving rod and a support guide mechanism are installed in a clearance fit manner; an installation flange is sleeved at the rod section of the driving rod near the connection thread; the initial hole end of the first corrugated section is welded with the installation flange through head end circumferential welding seam; and the tail hole end of the tail corrugated section is welded with the other end of the driving rod through tail end circumferential welding seam. The metal corrugated pipe for the pulse valve disclosed by the utility model is capable of playing functions of movably sealing, resisting high temperature and high pressure and the like in the working process of the pulse valve for a high-temperature and high-pressure fly ash filtering system; furthermore, the metal corrugated pipe for the pulse valve is cooperatively used with the reciprocating cylinder, therefore, cyclic actions of stretching the corrugated pipe to be 23 mm and compressing to be 10.5 mm can be completed under high-temperature and high-pressure environments; and the cyclic action life can be up to 200,000 times.
Description
Technical field
The utility model content relates to a kind of pulse valve metal bellows for coal gasification HTHP flying dust filtration system.
Background technology
Pulse valve is the important device of the online blowback cleaning systems of ceramic high temperature high pressure fly-ash filter filter core in the Shell gasifying powder coal device, and in order to produce air pulse, oppositely cleaning is attached to the solid impurity (filter cake) on the filter core.When pulse valve is worked, must under the double-acting cylinder effect, stretch and compressed action as the metal bellows of its vitals, and act frequently, the response time is short; Simultaneously, along with development of technology, this area is for pulse valve having higher requirement in applying working condition, project organization and service life, the structure length that not only requires metal bellows is long, diameter is thinner, and require it can bear the direct corrosion of high temperature (being not more than 350 ℃), high pressure (being not more than 12MPa) crude synthesis gas, and have the higher life-span (being not less than 200,000 times) that recycles, yet up to now, coal chemical industry enterprises can't satisfy above-mentioned functional requirement with the metal bellows product of known pulse valve.
The utility model content
The purpose of this utility model is the problem that prior art exists is solved, a kind of pulse valve metal bellows for coal gasification HTHP flying dust filtration system is provided, this metal bellows can bear the direct corrosion of high temperature, high pressure raw synthesis gas, and length is longer, diameter is less, recycles the life-span to be not less than 200,000 times.
The technical solution that adopts is so for achieving the above object: the pulse valve that provides has three sections ripples joints that connect successively by connecting ring and one with metal bellows and run through the drive rod that cover was inserted each ripple joint endoporus and can be done to move back and forth under compound cylinder drive, one end of drive rod is connected with double-acting cylinder and external equipment by connecting thread, the other end and support guide mechanism matched in clearance are installed, be set with a mounting flange at drive rod near the bar section place of connecting thread, initial mouthful of end of first section ripple joint is by head end girth joint and mounting flange welding, and the end mouth end of terminal ripple joint is by the support guide mechanism connector section welding of tail end girth joint and drive rod.
Above-mentioned pulse valve is with in the metal bellows, welds mutually by the middle part girth joint between said each ripple joint and the connecting ring.
Above-mentioned pulse valve is with in the metal bellows, bellows length overall after said three sections ripples joint connects is 350～360mm, diameter is 45～50mm, and the amount of tension of bellows and decrement are respectively 23mm and 10.5mm, and the length overall of said drive rod is 600～610mm.
Above-mentioned pulse valve is with in the metal bellows, and the mounting flange that is sleeved on the drive rod is the mounting flange of a peripheral hardware installing hole, and this mounting flange is connected with external equipment by installing hole.
During system works, the alternately ventilation by two blow vents impels double-acting cylinder to do reciprocating, therefore can drive the drive rod motion, and then drives the bellows that is connected in it and carry out reciprocating.In the bellows course of action, it is isolated with extraneous formation intrasystem high temperature, high pressure raw synthesis gas, simultaneously bellows be along with the work of system can be finished the action of stretching 23mm, compression 10.5mm in a circulation 250ms, and guarantees to move in systemic circulation and faults such as leakage, fracture do not occur in 200,000 times.
Compared with prior art, the beneficial effects of the utility model are: this pulse valve can play movable sealing, function such as high temperature resistant, high pressure resistant in the pulse valve course of work in HTHP flying dust filtration system with metal bellows, and unite use with double-acting cylinder, can under high temperature, hyperbaric environment, finish the do action of metal bellows stretching 23mm, compression 10.5mm, realize that the do action life-span can reach 200,000 times.
Description of drawings
Fig. 1 is the structural representation of a specific embodiment of the utility model.
Fig. 2 is the I portion enlarged drawing (Welding Structure schematic diagram) of Fig. 1.
The title of each figure notation is among the figure: 1-drive rod, 2-mounting flange, 3-ripple joint, 4-connecting ring, the 5-installing hole, 6-connecting thread, 7-double-acting cylinder, 8-support guide mechanism, 11-head end girth joint, 12-tail end girth joint, 13-middle part girth joint.
The specific embodiment
Below with reference to accompanying drawing the utility model content is described further, but actual fabrication structure of the present utility model is not limited in embodiment shown in the drawings.
Referring to accompanying drawing, pulse valve described in the utility model comprises members such as drive rod, mounting flange 2, ripple joint 3 and connecting ring 4 with metal bellows.Bellows is welded to form by middle part girth joint 13 by 3 and two identical connecting rings 4 of three sections identical ripple joints.One end of bellows (initial mouthful of end of first section ripple joint among Fig. 1) is welded on the mounting flange 2 of suit on the drive rod 1 by head end girth joint 11, and the other end (the end mouth end of terminal ripple joint among Fig. 1) is welded on the drive rod 1 by tail end girth joint 12.Drive rod 1 is connected with external equipment with installing hole 5 by connecting thread 6 with mounting flange 2, and an end of drive rod 1 also is connected the other end of drive rod 1 and the 8 matched in clearance installation of support guide mechanism with double-acting cylinder 7 by connecting thread 6.During system works, drive rod 1 drives and then drives bellows by double-acting cylinder 7 and does reciprocating.The length overall L of drive rod 1
1=603mm, bellows length overall L
2=355mm, diameter D=50mm.Bellows 3 23mm that can stretch, compressible 10.5mm, but 350 ℃ of heatproofs, but air pressure resistance 12MPa, the life-span that recycles of bellows is not less than 200,000 times.
Claims (4)
1. pulse valve metal bellows, it is characterized in that: have three sections ripples joints (3) that connect successively by connecting ring (4) and one and run through the drive rod (1) that cover was inserted each ripple joint endoporus and can be done to move back and forth under double-acting cylinder (7) drive, one end of drive rod (1) is connected with double-acting cylinder (7) and external equipment by connecting thread (6), the other end and support guide mechanism (8) matched in clearance are installed, be set with a mounting flange (2) at drive rod (1) near the bar section place of connecting thread (6), initial mouthful of end of first section ripple joint is by head end girth joint (11) and mounting flange (2) welding, and the end mouth end of terminal ripple joint is by the support guide mechanism connector section welding of tail end girth joint (12) with drive rod (1).
2. pulse valve metal bellows according to claim 1 is characterized in that: pass through middle part girth joint (13) between each ripple joint (3) and the connecting ring (4) and weld mutually.
3. pulse valve metal bellows according to claim 1, it is characterized in that: the bellows length overall after three sections ripple joints (3) connect is 350～360mm, diameter is 45～50mm, the amount of tension of bellows and decrement are respectively 23mm and 10.5mm, and the length overall of drive rod (1) is 600～610mm.
4. pulse valve metal bellows according to claim 1, it is characterized in that: the mounting flange (2) that is sleeved on the drive rod (1) is the mounting flange of a peripheral hardware installing hole (5), this mounting flange (2) is connected with external equipment by installing hole (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220724635 CN203060992U (en) | 2012-12-25 | 2012-12-25 | Metal corrugated pipe for pulse valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220724635 CN203060992U (en) | 2012-12-25 | 2012-12-25 | Metal corrugated pipe for pulse valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203060992U true CN203060992U (en) | 2013-07-17 |
Family
ID=48759821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220724635 Expired - Fee Related CN203060992U (en) | 2012-12-25 | 2012-12-25 | Metal corrugated pipe for pulse valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203060992U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644322A (en) * | 2013-11-30 | 2014-03-19 | 成都易态科技有限公司 | Pulse valve device |
| CN103672191A (en) * | 2013-11-25 | 2014-03-26 | 江苏星河阀门有限公司 | Welding structure of metal bellow assembly for valve |
| CN103867733A (en) * | 2013-11-23 | 2014-06-18 | 江苏星河阀门有限公司 | Welding structure of metal corrugated pipe component for valve |
| CN103899835A (en) * | 2012-12-25 | 2014-07-02 | 西安航天远征流体控制股份有限公司 | Metal bellows for pulse valve |
| CN105485350A (en) * | 2016-01-12 | 2016-04-13 | 合肥通用机械研究院 | Improved pulse back flushing valve |
| CN103644322B (en) * | 2013-11-30 | 2016-11-30 | 成都易态科技有限公司 | Pulse valve device |
-
2012
- 2012-12-25 CN CN 201220724635 patent/CN203060992U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899835A (en) * | 2012-12-25 | 2014-07-02 | 西安航天远征流体控制股份有限公司 | Metal bellows for pulse valve |
| CN103867733A (en) * | 2013-11-23 | 2014-06-18 | 江苏星河阀门有限公司 | Welding structure of metal corrugated pipe component for valve |
| CN103672191A (en) * | 2013-11-25 | 2014-03-26 | 江苏星河阀门有限公司 | Welding structure of metal bellow assembly for valve |
| CN103644322A (en) * | 2013-11-30 | 2014-03-19 | 成都易态科技有限公司 | Pulse valve device |
| CN103644322B (en) * | 2013-11-30 | 2016-11-30 | 成都易态科技有限公司 | Pulse valve device |
| CN105485350A (en) * | 2016-01-12 | 2016-04-13 | 合肥通用机械研究院 | Improved pulse back flushing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20131225 |