CN101422679A - Balance flap valve special for air-output changing dust removal system - Google Patents
Balance flap valve special for air-output changing dust removal system Download PDFInfo
- Publication number
- CN101422679A CN101422679A CNA2008102289415A CN200810228941A CN101422679A CN 101422679 A CN101422679 A CN 101422679A CN A2008102289415 A CNA2008102289415 A CN A2008102289415A CN 200810228941 A CN200810228941 A CN 200810228941A CN 101422679 A CN101422679 A CN 101422679A
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- Prior art keywords
- flap
- valve
- dust removal
- turnover panel
- removal system
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Abstract
The invention relates to a balance flap valve which is specially used for a variable air volume dust removal system and comprises a shell, a counterweight device, a flap, a sealing valve shaft and a cushion cylinder. The shell is of a pipe structure; the flap is positioned at the center and connected with the sealing valve shaft; the sealing shaft is provided with the counterweight device; and the counterweight device is connected with the cushion cylinder. The flap is of a plate structure; a valve clapboard is arranged in the shell parallelly to the flap; and a sealing ring is arranged between the valve clapboard and the flap. The balance flap valve has the advantages that: power does not need to be consumed; the surge phenomenon of a fan is effectively eliminated; the opening pressure of the flap can be arbitrarily regulated according to actual fluctuation of a network pressure; the structure is simple; damageable parts are few and convenient for installation, repair and management; the operation is reliable and stable; the service life is long; and one-time investment is low without operation cost. The balance flap valve is applicable to all variable air volume dust removal systems.
Description
Technical field
The present invention relates to a kind of balance flap valve special for air-output changing dust removal system, be mainly used in the regular or irregular variable air rate dust pelletizing system that bigger variation takes place of operation air quantity.
Background technology
Part is assisted, improved to dust pelletizing system as process system, and its operation system is that the operation system with process system adapts.Process equipment moves factors such as the variation of variation, process equipment production output of quantity and process equipment intermittent duty simultaneously, all directly affects the actual motion air quantity of dust pelletizing system.Process system with intermittent duty is an example, and when process equipment manipulation, because dust-producing amount is very big, dust pelletizing system blower fan high-speed cruising is to realize producing the capture purification of flue dust in the art production process; When process equipment intermittently the time, because dust-producing amount is few or do not have dust-producing amount, for energy-saving run, the dust pelletizing system blower fan is moving under corresponding low speed through the speed governing meeting.Along with the frequent speed governing of dedusting fan, the dedusting pipe network is very big in the pressure oscillation of speed governing moment, and the blower fan surge phenomenon that causes thus is very serious.Address this problem as untimely, will destroy whole dust-removal system traveling comfort and security, reduce the service life of blower fan.
Summary of the invention
The purpose of this invention is to provide a kind of balance flap valve special for air-output changing dust removal system, this equipment can be implemented in automatic open close, the replenishment system air quantity of certain pressure lower valve, make the fan operation operating point avoid the blower fan surge area, to reduce the fluctuation of ductwork pressure, guarantee dust pelletizing system steadily, operation safely, prolong service life of blower fan.
A kind of balance flap valve special for air-output changing dust removal system, this device comprise housing, counter weight device, turnover panel, sealing valve shaft, bounce cylinder, and housing is a tubular structure, and turnover panel is positioned at the centre, and turnover panel connects the sealing valve shaft, and the sealing valve shaft is provided with counter weight device; Counter weight device is connected with bounce cylinder.
Described turnover panel is a plank frame, and valve body dividing plate and turnover panel be arranged in parallel, is located in the housing, is provided with sealing ring between valve body dividing plate and the turnover panel.
Described counter weight device is the version that lever adds counter weight.
Described sealing ring adopts rubber or steel wire asbestos material to be made.
Advantage of the present invention is: do not need consumed power, can eliminate the blower fan surge phenomenon effectively; Can be according to the actual fluctuation situation of ductwork pressure, the opening pressure of regulating turnover panel arbitrarily; Version is simple, is convenient to install and maintenance management; A small investment does not have operating cost.
Description of drawings
Fig. 1 is a structural front view of the present invention.
Fig. 2 is a structure side view of the present invention.
Fig. 3 A-A cutaway view of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described:
Valve chest 1 is a tubular shell, is turnover panel 2 in the middle of the valve, and establishing refitting in side is put and bounce cylinder 5, and counter weight device is made up of counter weight 3 and lever 8.The turnover panel 2 of valve links to each other by sealing valve shaft 4 with counter weight device.
In engineering reality, the present invention is located at the end of dedusting pipe network, and the turnover panel end of valve is connected with cleaning shaft, and the other end leads directly to outside atmosphere or is connected the back with silencer and leads directly to outside atmosphere.
Operation principle of the present invention is as follows:
1, when dedusting supply lines valve turnover panel 2 side negative pressure reach design pressure, turnover panel 2 can be opened automatically, and atmosphere enters the dedusting pipe network by the balance flap valve.When ductwork pressure tends to balance, when turnover panel 2 side negative pressure absolute values are higher than the design pressure value, turnover panel 2 is closed automatically.
2, according to the design pressure of dedusting pipe network, counter weight device has a design counterweight.In actual engineering operation, can by regulating counter weight 3 sizes or adjusting the engaging pressure that turnover panel 2 is regulated in its position on lever 8, disappear according to actual pressure situation in the dedusting pipe network until the blower fan surge phenomenon.
3, valve side counter weight device is connected with bounce cylinder 5, the vibration that valve body is produced when subduing valve opening and closing.
4. keeping parallelism between valve body dividing plate 6 and the turnover panel 2, and turnover panel is pressed on the sealing ring 7, makes valve keep sealing.
Claims (4)
1, a kind of balance flap valve special for air-output changing dust removal system is characterized in that, this device comprises housing, counter weight device, turnover panel, sealing valve shaft, bounce cylinder, housing is a tubular structure, turnover panel is positioned at the centre, and turnover panel connects the sealing valve shaft, and the sealing valve shaft is provided with counter weight device; Counter weight device is connected with bounce cylinder.
2, balance flap valve special for air-output changing dust removal system according to claim 1 is characterized in that, described turnover panel is a plank frame, and valve body dividing plate and turnover panel be arranged in parallel, are located in the housing, are provided with sealing ring between valve body dividing plate and the turnover panel.
3, balance flap valve special for air-output changing dust removal system according to claim 1 is characterized in that, described counter weight device is the version that lever adds counter weight.
4, balance flap valve special for air-output changing dust removal system according to claim 2 is characterized in that, described sealing ring adopts rubber or steel wire asbestos material to be made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102289415A CN101422679A (en) | 2008-11-21 | 2008-11-21 | Balance flap valve special for air-output changing dust removal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102289415A CN101422679A (en) | 2008-11-21 | 2008-11-21 | Balance flap valve special for air-output changing dust removal system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101422679A true CN101422679A (en) | 2009-05-06 |
Family
ID=40613700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102289415A Pending CN101422679A (en) | 2008-11-21 | 2008-11-21 | Balance flap valve special for air-output changing dust removal system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101422679A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678940A (en) * | 2012-05-07 | 2012-09-19 | 江苏泓明达机械有限公司 | Double-layer double-door counterweight air lock flap valve |
| CN103470788A (en) * | 2013-08-30 | 2013-12-25 | 江苏太湖锅炉股份有限公司 | Combined mechanical discharging valve |
| CN106381159A (en) * | 2016-10-27 | 2017-02-08 | 中冶焦耐(大连)工程技术有限公司 | Abnormal bleeding device (II) for accident bleeding of smoke collecting cover at top of coke stove |
| CN107695066A (en) * | 2017-10-30 | 2018-02-16 | 中船澄西船舶修造有限公司 | The anti-tampering air lock in dedusting air port |
| CN112370877A (en) * | 2020-11-05 | 2021-02-19 | 江苏鹏威重型设备有限公司 | Low-pressure-difference bag-type dust collector |
-
2008
- 2008-11-21 CN CNA2008102289415A patent/CN101422679A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678940A (en) * | 2012-05-07 | 2012-09-19 | 江苏泓明达机械有限公司 | Double-layer double-door counterweight air lock flap valve |
| CN103470788A (en) * | 2013-08-30 | 2013-12-25 | 江苏太湖锅炉股份有限公司 | Combined mechanical discharging valve |
| CN103470788B (en) * | 2013-08-30 | 2018-09-25 | 江苏太湖锅炉股份有限公司 | A kind of combined mechanical baiting valve |
| CN106381159A (en) * | 2016-10-27 | 2017-02-08 | 中冶焦耐(大连)工程技术有限公司 | Abnormal bleeding device (II) for accident bleeding of smoke collecting cover at top of coke stove |
| CN107695066A (en) * | 2017-10-30 | 2018-02-16 | 中船澄西船舶修造有限公司 | The anti-tampering air lock in dedusting air port |
| CN112370877A (en) * | 2020-11-05 | 2021-02-19 | 江苏鹏威重型设备有限公司 | Low-pressure-difference bag-type dust collector |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20090506 |