CN208764406U - A kind of nonflame bleeder - Google Patents
A kind of nonflame bleeder Download PDFInfo
- Publication number
- CN208764406U CN208764406U CN201821296778.1U CN201821296778U CN208764406U CN 208764406 U CN208764406 U CN 208764406U CN 201821296778 U CN201821296778 U CN 201821296778U CN 208764406 U CN208764406 U CN 208764406U
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- CN
- China
- Prior art keywords
- upper cover
- inner frame
- net
- fire relief
- nonflame bleeder
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Abstract
A kind of nonflame bleeder, including inner frame, back-fire relief net, inlet flange, pressure relief device and upper cover.The cylinder that inner frame is made of vertical frame and annular peripheral frame, back-fire relief net are fixed on the inner frame periphery.Upper cover is fixed on the top of inner frame, and the edge of upper cover has the baffle tilted down.Baffle and the angle of upper cover are 90 ° -170 °.When explosion time occurs for dust pipeline, the high pressure gas of nonflame bleeder release meets lid baffle and changes injection direction, in a certain range by the high pressure gas control of release, avoid the people or equipment around its harm.
Description
Technical field
A kind of device that the utility model relates to prevent dust pipeline flame from overflowing, and in particular to nonflame bleeder.
Background technique
Nonflame bleeder radiates to flame, the dust in pipeline by mesh screen, plays prevention explosion and absorbs and lets out
The pressure wave and dust that burst release is put, in case venting of dust explosion impact damages the person or equipment.Chinese invention patent
CN201710589180 discloses a kind of dust nonflame bleeder of sector structure, and this structure is increasing discharge area,
But release impact and extraneous contact surface it is also big, there are security risks for high temperature, the high pressure gas released, and the nothing of this sector structure
The outer dimension of flame bleeder is very big, needs big installation space, causes not being available on some circular pipes.In circle
Nonflame bleeder is used under the operating condition of flange, existing fire arrester is mostly columnar structured and needs mutual with other devices
Cooperation is just able to achieve its function.Chinese utility model patent CN201621478519 discloses a kind of dust nonflame fire arrester, this
When kind nonflame fire arrester is put in outdoor application, the back-fire relief grid structure at top is influenced vulnerable to environment, is blocked up by rain erosion or by dust
Plug.And such case is not easy to be found in normal operating conditions.When accidental explosion occurs for equipment, the work of back-fire relief cannot achieve
With and cause unnecessary harm.
Utility model content
The purpose of the utility model is to overcome range of releasing existing for existing nonflame bleeder is big, around vulnerable to impact
Security hidden trouble.To realize that the above technical purpose, the technical solution of the utility model are as follows:
A kind of nonflame bleeder, including inner frame, back-fire relief net, inlet flange, pressure relief device and upper cover.Inner frame be by
The cylinder of vertical frame and annular peripheral frame composition, back-fire relief net are fixed on the inner frame periphery.Upper cover is fixed on inner frame
Top, the edge of upper cover have the baffle tilted down.Baffle and the angle of upper cover are 90 ° -170 °.When the generation of dust pipeline is quick-fried
When fried, the high pressure gas of nonflame bleeder release meets lid baffle and changes injection direction, thus by the high pressure gas of release
Control in a certain range, avoids the people or equipment around its harm.
Preferably, baffle and the angle of upper cover are 135 °.
Preferably, back-fire relief net is three-decker, and internal layer is 2 layers of square weave net, and middle layer is 6-8 layers of stainless steel ripple
Net, outer layer are 2 layers of square weave net.
It preferably, further include reinforcing rib, reinforcing rib is located at back-fire relief net periphery, and the both ends of reinforcing rib are fixed on inner frame.
It preferably, further include detection device and extinguishing chemical spray orifice, detection device is fixed on inlet flange, extinguishing chemical spray orifice
In the middle part of upper cover.
Compared with prior art, the utility model has the beneficial effects that being made using the upper cover with baffle in outdoor application,
Reduce rain erosion, increases its service life；Composition back-fire relief net, resistance are combined using stainless steel waveform net and stainless steel mesh grid township
Fiery ability is more preferable；Upper cover with baffle expands the use scope of nonflame bleeder, indoors, it is outdoor can be used, and
Reduce the range of releasing of nonflame bleeder；Extinguishing chemical or inert gas are discharged in escape orifice, pipeline flame is prevented to spread.
Detailed description of the invention
Fig. 1 is a kind of outline drawing of nonflame bleeder described in the utility model embodiment 1；
Fig. 2 is a kind of structural schematic diagram of nonflame bleeder described in the utility model embodiment 1；
In Fig. 2: 1- inlet flange, 2- reinforcing rib component, 3- back-fire relief net, 4- inner frame, 5- upper cover, 6- extinguishing chemical spout,
7- pressure relief device, 8- detection device, 9- screw-type blind hole.
Specific embodiment:
The utility model is described further with reference to the accompanying drawings.
Embodiment 1
As shown in Figs. 1-2, a kind of nonflame bleeder, including inner frame inlet flange 1, back-fire relief net 3, inner frame 4, pressure release
Device 7 and upper cover 5.The cylinder that inner frame 4 is made of vertical frame and annular peripheral frame, back-fire relief net 3 are fixed on the in-seam
4 periphery of frame.Upper cover 5 is fixed on the top of inner frame 4, and the edge of upper cover 5 has the baffle tilted down.Baffle and upper cover 5
Angle is 90 ° -170 °.When explosion time occurs for dust pipeline, the high pressure gas of nonflame bleeder release meets 5 baffle of lid and changes
Become injection direction, in a certain range by the high pressure gas control of release, avoid the people or equipment around its harm.As
The angle of preferred embodiment, baffle and upper cover 5 is 135 °.In addition, using three-decker to improve the back-fire relief ability of back-fire relief net 3
Back-fire relief net 3.Wherein, internal layer is 2 layers of square weave net, and middle layer is 6-8 layers of stainless steel ripple net, and outer layer is 2 layers of rectangular volume
Knitmesh.In order to improve the intensity of nonflame bleeder, reinforcing rib component 2 can be wrapped in the periphery of back-fire relief net 3, reinforcing rib component
2 both ends are fixed on inner frame 4.Existing nonflame bleeder is mostly attached using the form of bolt hole in inlet,
Cause dust or flame to leak in inlet, to overcome this defect, screw hole is changed to screw-type blind hole 9 and is let out with reducing flame
Leakage.
Embodiment 2
As shown in Fig. 2, on the basis of embodiment 1, can also increase detection device 8 and extinguishing chemical spray orifice 6, detection device 8
It is fixed on inlet flange 1, extinguishing chemical spray orifice 6 is opened in 5 middle part of upper cover.
When dust pipeline works normally, the setting that its operating pressure is less than nonflame bleeder is released pressure, dust
Gas is without nonflame bleeder.When dust pipeline superpressure works, the setting that operating pressure is greater than nonflame bleeder is released
Pressure, the pressure relief device 7 that nonflame is released, which will be opened, to be released stress, while back-fire relief net 3 can effectively obstruct dust and discharge to outer
Boundary prevents the pollution of the environment.
When dust explosion occurs for dust pipeline, the pressure of flame impingement wave is greater than the pressure of releasing of nonflame bleeder,
Pressure relief device 7 opens pressure of releasing.The cavity that dust flame enters nonflame bleeder sprays from inside to outside, when into back-fire relief net 3,
Flame first passes around two layers of mesh grid, and flame is divided into countless threads, and is braided net and absorbs certain heat, when flame thread arrives
When up to ripple silk net, corrugated silk screen can increase the contact area with flame, and the heat of flame is absorbed using heat exchange principle, fast
Speed reduces flame temperature, and flame temperature is made to drop to dust burning point hereinafter, knock down the flame.At the same time, most powder of burning
Dirt is also intercepted by back-fire relief net 3, prevents the risk of dust subsequent explosion.Entire back-fire relief process is no more than 0.5S.Over-pressure gas is released
When putting, it will receive the obstruction of the baffle of upper cover 5 and change release direction, thus in a certain range by release range control.
Electric wire formula detection device can be used in detection device 7, and when pressure relief device 7 is opened, moment breaks signal wire.This
Sample will generate an abnormal signal to control system, and control system receives the solenoid valve above signal post command opening top cover,
Extinguishing chemical is sprayed by extinguishing chemical spout 6, to inhibit propagation of flame.
It can also be used and visited when pressure relief device is opened close to switching regulator close to switching regulator detection device as detection device 7
The magnetic inductive film of device is surveyed far from close to switch, can thus generate an abnormal signal to control system, control system receives
Signal post command opens the solenoid valve above top cover, and extinguishing chemical is sprayed by extinguishing chemical spout 6, to inhibit propagation of flame.
Furthermore, it is possible to use the detection device of sensor type is as detection device 7, when detecting high pressure, high temperature, flame
When, an abnormal signal is transmitted to control system, and control system receives the solenoid valve above signal post command opening top cover, fire extinguishing
Agent is sprayed by extinguishing chemical spout 6, to inhibit propagation of flame.
When the work of dust pipeline superpressure, when nonflame bleeder needs replacing or device needs to clean, it is only necessary to unscrew
Bolt in the screw-type blind hole 9 of 1 side of inlet flange can divide it with reinforcing rib component 2 from top pull-up back-fire relief net 3
From operation is more simple and convenient.
Claims (5)
1. a kind of nonflame bleeder, including inner frame, back-fire relief net, inlet flange, pressure relief device and upper cover, which is characterized in that
The cylinder that the inner frame is made of vertical frame and annular peripheral frame, the back-fire relief net are fixed on the inner frame periphery,
The upper cover is fixed on the top of the inner frame, and the edge of the upper cover has the baffle tilted down, the baffle and institute
The angle for stating upper cover is 90 ° -170 °.
2. a kind of nonflame bleeder according to claim 1, which is characterized in that the angle is 135 °.
3. a kind of nonflame bleeder according to claim 1, which is characterized in that the back-fire relief net is three-decker, interior
Layer is 2 layers of square weave net, and middle layer is 6-8 layers of stainless steel ripple net, and outer layer is 2 layers of square weave net.
4. a kind of nonflame bleeder according to claim 1, which is characterized in that it further include reinforcing rib, the reinforcing rib
Positioned at the back-fire relief net periphery, the both ends of the reinforcing rib are fixed on the inner frame.
5. a kind of nonflame bleeder according to claim 1, which is characterized in that further include detection device and extinguishing chemical spray
Hole, the detection device are fixed on the inlet flange, and the extinguishing chemical spray orifice is located in the middle part of the upper cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821296778.1U CN208764406U (en) | 2018-08-13 | 2018-08-13 | A kind of nonflame bleeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821296778.1U CN208764406U (en) | 2018-08-13 | 2018-08-13 | A kind of nonflame bleeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208764406U true CN208764406U (en) | 2019-04-19 |
Family
ID=66131811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821296778.1U Active CN208764406U (en) | 2018-08-13 | 2018-08-13 | A kind of nonflame bleeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208764406U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110721423A (en) * | 2019-11-11 | 2020-01-24 | 江苏华正环保科技有限公司 | Box-type modular flameless discharge device |
| CN115721895A (en) * | 2022-12-30 | 2023-03-03 | 郑州中泰安科粉体科技有限公司 | Repeated flameless discharge device |
-
2018
- 2018-08-13 CN CN201821296778.1U patent/CN208764406U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110721423A (en) * | 2019-11-11 | 2020-01-24 | 江苏华正环保科技有限公司 | Box-type modular flameless discharge device |
| CN115721895A (en) * | 2022-12-30 | 2023-03-03 | 郑州中泰安科粉体科技有限公司 | Repeated flameless discharge device |
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