CN209431439U - A kind of boiler flue flue gas leakage gate valve - Google Patents
A kind of boiler flue flue gas leakage gate valve Download PDFInfo
- Publication number
- CN209431439U CN209431439U CN201821860328.0U CN201821860328U CN209431439U CN 209431439 U CN209431439 U CN 209431439U CN 201821860328 U CN201821860328 U CN 201821860328U CN 209431439 U CN209431439 U CN 209431439U
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- CN
- China
- Prior art keywords
- flue
- negative pressure
- intake duct
- air intake
- flashboard
- 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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- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The utility model discloses a kind of boiler flue flue gas leakage gate valves, including shell, flashboard, sealing device, drive system and negative pressure system, the sealing device is set between shell and flashboard, for forming negative pressure chamber between shell and flashboard, for the drive system for driving opening or closing for flashboard, the negative pressure system includes air intake duct, exhaust pipe and the low pressure flue for being connected to air intake duct and exhaust pipe, the air intake duct is connected to negative pressure chamber, and the exhaust pipe is connected with former flue.Due to being provided with negative pressure chamber and negative pressure system, the fume leakage at Gate-valve sealing can all be sent back to former flue, ensure that effective partition of dielectric gas, not only can prevent flue gas from entering working region, but also structure is simple.
Description
Technical field
The utility model relates to a kind of boiler flue gate valve, especially a kind of suction type Smoke prevention gas leakage flue damper valve and lock
The method of valve Smoke prevention gas leakage.
Background technique
With the rapid development of industry, various boilers using more and more, the flue dust and toxic gas of generation are serious
It polluted atmosphere, so it is extremely urgent to eliminate flue dust, purification air.It is flue dust, titanium dioxide that content is maximum in boiler smoke
Sulphur, followed by carbon monoxide, hydrocarbon, nitric oxide and photochemical fog, these pollutions are most of to come from burning coal
Various Industrial Boilers, station boiler and civil boiler.
Processing for boiler smoke generallys use based on setting baffle-type partition, and structure is simple, and working principle is not
It is preferable to install initial leakproofness for complexity, but with the extension of use time, due to the physics and chemical property shadow by flue gas
It ringing, leakage phenomenon is gradually expanded, and it is especially even more serious after coking, seriously affect gas flue upkeep operation.
Therefore, it is necessary to a kind of durable, partition property is not easy to leak well, and the simple flue gate valve of structure.
Utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies of the prior art and provide a kind of suction type flue gas
Leak flue gate valve.Especially to the Smoke prevention gas leakage at sealing or when replacement seals.
In order to solve the above technical problems, the utility model provides a kind of boiler flue flue gas leakage gate valve, it is especially negative
Pressure type Smoke prevention gas leakage flue damper valve, including shell, flashboard, sealing device, drive system and negative pressure system, the sealing device
Between shell and flashboard, for forming negative pressure chamber between shell and flashboard, the drive system is for driving flashboard
It opens or closes, the negative pressure system includes air intake duct, exhaust pipe and the low pressure flue for being connected to air intake duct and exhaust pipe, institute
Air intake duct connection negative pressure chamber is stated, the exhaust pipe is connected with former flue.
Sealing device is located at the sealing of gate valve, and especially the outside at sealing is equipped with negative pressure chamber, and air intake duct connection is negative
Plenum chamber is additionally provided with exhaust pipe for being connected to air intake duct and low pressure flue；Or be equipped with air-introduced machine again and connect air intake duct, it is vented effective
In connection air intake duct and low pressure flue.
The negative pressure system further includes air-introduced machine, and the air-introduced machine is connected with low pressure flue, and the air-introduced machine will be for that will bear
Flue gas in plenum chamber is sucked out through air intake duct, is guided by low pressure flue to exhaust pipe.
The negative pressure system further includes tonifying Qi regulating device, and the tonifying Qi regulating device is set on air intake duct, for assisting
Air intake duct absorbs the flue gas in negative pressure chamber.
The utility model is achieved the utility model has the advantages that due to being provided with negative pressure chamber and negative pressure system, at Gate-valve sealing
Fume leakage can all be sent back to former flue, ensure that effective partition of dielectric gas, can not only prevent flue gas from entering work
Make region, do not have smoke spillage pollution environment, sends back to after former flue and have special flue gas system flue gas is handled, and
The utility model structure is simple.
Detailed description of the invention
Fig. 1 is the structure diagram of the exemplary embodiment of the utility model；
Fig. 2 is the sectional view of the exemplary embodiment of the utility model.
Specific embodiment
The utility model is further described with exemplary embodiment with reference to the accompanying drawing:
A kind of suction type Smoke prevention gas leakage flue damper valve as shown in Figure 1 and Figure 2, including shell 1, flashboard 2, sealing device
8, drive system 10 and negative pressure system, the sealing device 8 are set between shell and flashboard, for being formed between shell and flashboard
Negative pressure chamber 3, for the drive system for driving opening or closing for flashboard, the negative pressure system includes air intake duct 11, exhaust
Pipe 6 and low pressure flue 9 for being connected to air intake duct and exhaust pipe, the air intake duct are connected to negative pressure chamber, the exhaust pipe and former
Flue 7 is connected.Sealing device is located at the sealing of gate valve, and especially the outside at sealing is equipped with negative pressure chamber, and air intake duct connects
Logical negative pressure chamber is additionally provided with exhaust pipe for being connected to air intake duct and low pressure flue；Or it is equipped with air-introduced machine again and connects air intake duct and row
Between tracheae, exhaust pipe is for being connected to air intake duct and low pressure flue.Roots blower can be used in air-introduced machine, is negative pressure in entrance.
The exhaust outlet of roots blower is communicated to exhaust pipe.
The utility model can make double-layer wind unexposed layer generate flowing gas using the natural air suction of the low pressure flue in chimney
Stream, with siphon principle by the negative pressure chamber of flue gate valve may leakage flue gas through negative pressure system directly from former flue, that is, low
It is discharged in pressure flue.
Further, it includes air-introduced machine (roots blower) 5, the air-introduced machine and low pressure that the negative pressure system, which can be also equipped with,
Flue is connected, and for the flue gas in negative pressure chamber to be sucked out through air intake duct, exhaust outlet is guided the air-introduced machine by low pressure flue
To exhaust pipe.
The negative pressure system is additionally provided with tonifying Qi regulating device 4, and the tonifying Qi regulating device is set on air intake duct, for assisting
Air intake duct absorbs the flue gas in negative pressure chamber.
The working method of above-mentioned suction type Smoke prevention gas leakage flue damper valve, step are poly- as follows:
(1) drive system work closing gate valve, closes flashboard in place；
(2) negative pressure system is opened, and air-introduced machine is opened, and the fume leakage entered in negative pressure chamber is guided by air intake duct to low
Flue is pressed, then is discharged into former flue through exhaust pipe；Air-introduced machine can not usually be opened, and the flue gas in negative pressure chamber is sucked out again through air intake duct
Exhaust outlet is guided by low pressure flue to exhaust pipe.
(3) flashboard is opened in drive system work, and after flue overhauls, negative pressure system is closed, and takes unlatching.
The utility model is mainly used for providing a kind of suction type Smoke prevention gas leakage flue damper valve, due to being provided with negative pressure chamber
And negative pressure system, the fume leakage at Gate-valve sealing can all be sent back to former flue, ensure that effective partition of dielectric gas,
Not only it can prevent flue gas from entering working region or the external world, but also structure is simple.
Above embodiments do not limit the utility model in any way, all to be done in a manner of equivalent transformation to above embodiments
Other improvement and application out, belong to the protection scope of the utility model.
Claims (3)
1. a kind of boiler flue flue gas leakage gate valve, which is characterized in that including shell, flashboard, sealing device, drive system and
Negative pressure system, the sealing device is set between shell and flashboard, for forming negative pressure chamber, the drive between shell and flashboard
For dynamic system for driving opening or closing for flashboard, the negative pressure system includes air intake duct, exhaust pipe and for being connected to air intake duct
With the low pressure flue of exhaust pipe, the air intake duct is connected to negative pressure chamber, and the exhaust pipe is connected with former flue.
2. a kind of boiler flue flue gas leakage gate valve as described in claim 1, it is characterised in that: the negative pressure system also wraps
Air-introduced machine is included, the air-introduced machine is connected with low pressure flue, and the air-introduced machine is for inhaling the flue gas in negative pressure chamber through air intake duct
Out, it is guided by low pressure flue to exhaust pipe.
3. a kind of boiler flue flue gas leakage gate valve as claimed in claim 2, it is characterised in that: the negative pressure system also wraps
Tonifying Qi regulating device is included, the tonifying Qi regulating device is set on air intake duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821860328.0U CN209431439U (en) | 2018-11-13 | 2018-11-13 | A kind of boiler flue flue gas leakage gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821860328.0U CN209431439U (en) | 2018-11-13 | 2018-11-13 | A kind of boiler flue flue gas leakage gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209431439U true CN209431439U (en) | 2019-09-24 |
Family
ID=67968439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821860328.0U Expired - Fee Related CN209431439U (en) | 2018-11-13 | 2018-11-13 | A kind of boiler flue flue gas leakage gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209431439U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469917A (en) * | 2018-11-13 | 2019-03-15 | 盐城市华迪机械制造有限公司 | A kind of method of boiler flue gate valve and gate valve Smoke prevention gas leakage |
-
2018
- 2018-11-13 CN CN201821860328.0U patent/CN209431439U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469917A (en) * | 2018-11-13 | 2019-03-15 | 盐城市华迪机械制造有限公司 | A kind of method of boiler flue gate valve and gate valve Smoke prevention gas leakage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190924 Termination date: 20211113 |