CN215195152U - Large-diameter flame arrester - Google Patents
Large-diameter flame arrester Download PDFInfo
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- CN215195152U CN215195152U CN202120423052.5U CN202120423052U CN215195152U CN 215195152 U CN215195152 U CN 215195152U CN 202120423052 U CN202120423052 U CN 202120423052U CN 215195152 U CN215195152 U CN 215195152U
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- flame arrester
- fire
- fire relief
- hole
- large diameter
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Abstract
The utility model discloses a heavy-calibre spark arrester, spark arrester shell including the tube-shape, spark arrester shell internal fixation has more than one backup pad, and the backup pad middle part is equipped with main back-fire relief grid hole to be equipped with more than one vice back-fire relief grid hole around the main back-fire relief grid hole, main back-fire relief grid hole and vice back-fire relief grid internal fixation set the back-fire relief grid. Through setting up main back-fire relief bars hole and vice back-fire relief bars hole to solve among the background art heavy-calibre spark arrester and need a big size back-fire relief core and lead to the problem that manufacturing cost is high, shock resistance is weak and the installation is difficult.
Description
Technical Field
The utility model belongs to the technical field of the spark arrester, especially, relate to a heavy-calibre spark arrester.
Background
For the petrochemical industry with increasing scale, combustible gas accumulation often exists in production and transportation devices, and meanwhile, the environment with dangerous fire sources makes large-scale storage tanks, equipment and material conveying pipeline network systems possibly become important pollution sources and dangerous sources. In order to prevent major accidents such as fire, explosion and secondary explosion, effective safety measures must be taken. One of the requirements for combustion is that to reach a certain temperature, i.e. the ignition point, below which the combustion stops. According to this principle, the spread of the flame can be prevented as long as the temperature of the burning substance is lowered below its ignition point. The flame will become several tiny flames as it passes through the many tiny passages of the flame retardant element. When the flame retardant element is designed inside the flame arrester, the contact area between the fine flame and the channel wall is enlarged as much as possible, the heat transfer is enhanced, and the temperature of the flame is reduced below the ignition point, thereby preventing the flame from spreading. Flame arrestors are widely used in petrochemical plants as a safety device for preventing the spread of flammable gas and liquid flames and preventing the explosion caused by backfire, so as to prevent accidents and control the expansion of accidents. Flame arresters are generally installed in pipes for conveying combustible gases, or in ventilated tanks, and the device for preventing the passage of propagating flames (deflagrations or explosions) consists of a flame-arresting core and a flame-arresting housing. Fire retardant layers of various fire retardants used in the market at present mainly adopt gravel and fence plate or corrugated plate structures. Of these, the fire barrier cores of corrugated plate structures are most common.
The fire-retardant bars of the corrugated plate structure have the advantages that the pore uniformity and the porosity are easy to guarantee, the series connection is easy, the fire-retardant effect is good, and the fire-retardant bars have great advantages when being used on small-caliber fire retardants. However, the disadvantage of the corrugated plate structure is obvious in the application occasion of the large-caliber flame arrester (greater than DN 600), and the biggest disadvantage is that the strength of the flame retardant core structure is poor when the caliber is increased, and when the working condition of larger impact force such as detonation occurs, the flame retardant core structure is easily dispersed instantaneously, so that the fire passing condition is caused. Secondly, the winding process of the large-diameter fire retardant core is difficult, and even the large-diameter fire retardant core cannot be wound due to the overlarge diameter, so the price of the large-diameter fire retardant core is expensive. The large-diameter flame arrestors account for too little in daily orders, and inventory spare parts can cause additional production cost. Finally, in the assembling process, the fire retardant cylinder is easy to deform during welding, so that the large-caliber fire retardant core is difficult to install, and excessive gaps are easy to generate to cause fire passing. Therefore, a large-diameter flame arrester is designed.
Disclosure of Invention
An object of the utility model is to provide a heavy-calibre spark arrester to the heavy-calibre spark arrester needs the big size back-fire relief core to lead to the problem that manufacturing cost is high, shock resistance is weak and the installation difficulty among the solution background art.
In order to achieve the purpose, the utility model discloses a specific technical scheme of heavy-calibre spark arrester as follows:
the utility model provides a heavy-calibre spark arrester, includes the spark arrester shell of tube-shape, spark arrester shell internal fixation has more than one backup pad, and the backup pad middle part is equipped with main back-fire relief bars hole to be equipped with more than one vice back-fire relief bars hole around the main back-fire relief bars hole, main back-fire relief bars hole and vice back-fire relief bars internal fixation set back the back-fire relief bars.
Furthermore, the diameter of the main fire-retardant grid hole is larger than that of the auxiliary fire-retardant grid hole.
Furthermore, the number of the auxiliary fire-retardant grid holes is more than two.
Still further, the vice back-fire relief bars hole evenly distributed on the backup pad.
Still further, the auxiliary fire-retarding grid holes surround the main fire-retarding grid hole annular array on the support plate.
Further, the support plate is fixed inside the flame arrester housing by welding.
Furthermore, the supporting plate fixes the fire barrier by arranging a fastening device.
Still further, the fastening means is a detachable fastening means.
Still further, the detachable fastening device comprises a fixing plate and/or a compression block.
Furthermore, the supporting plate is fixed with the fire barrier through welding.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. through setting up main back-fire relief bars hole and vice back-fire relief bars hole to solve among the background art heavy-calibre spark arrester and need a big size back-fire relief core and lead to the problem that manufacturing cost is high, shock resistance is weak and the installation is difficult.
2. Through setting up main back-fire relief bars hole and vice back-fire relief bars hole, the back-fire relief bars of the standardized size of production purchase that can rule need not additionally to make by order, stock, energy-concerving and environment-protective.
3. Can be according to the user demand, nimble position and the quantity that sets up vice back-fire relief bars hole, the simple structure of design, production convenient operation does not need loaded down with trivial details structure, reduce cost.
Drawings
FIG. 1 is a schematic sectional view of the present invention;
fig. 2 is a schematic cross-sectional structure diagram of embodiment 3 of the present invention;
the reference numbers in the figures illustrate: 1. the fire arrestor comprises a fire arrestor shell, 2 parts of a support plate, 21 parts of a main fire-retarding grid hole, 22 parts of an auxiliary fire-retarding grid hole, 3 parts of a fire-retarding grid, 4 parts of a fixing plate and 5 parts of a pressing block.
The specific implementation mode is as follows:
in order to better understand the purpose, structure and function of the present invention, the following description is made with reference to the accompanying drawings.
As shown in figure 1, a large-diameter flame arrester is designed, which comprises a cylindrical flame arrester shell 1, wherein more than one supporting plate 2 is fixed in the flame arrester shell 1, the materials of the flame arrester shell 1 and the supporting plate 2 are selected to meet the impact resistance requirement of field use, a main flame-arresting grid hole 21 is arranged in the middle of the supporting plate, more than one auxiliary fire-retardant grid hole 22 is arranged around the main fire-retardant grid hole 21, the fire-retardant grid 3 is fixedly arranged in the main fire-retardant grid hole 21 and the auxiliary fire-retardant grid hole 22, the fire-retardant grid 3 is a honeycomb type fire-retardant grid, the ventilation quantity is ensured, the stability of the whole structure is improved, the installation is convenient, the main fire-retardant grid hole 21 and the auxiliary fire-retardant grid hole 22 which are matched with the standardized fire-retardant grid size can be designed, thereby improved the stock commonality of back-fire relief bars, simple structure is convenient for change spare part, compares with traditional heavy-calibre spark arrester, has practiced thrift manpower and material resources cost greatly.
The diameter of the main fire-retardant grid hole 21 is larger than that of the auxiliary fire-retardant grid hole 22, so that better pressure discharge and ventilation are facilitated. The supporting plate 2 is fixed inside the flame arrester shell 1 through welding, and the welding effect meets the impact resistance requirement of field use. In the above embodiment, 3 examples are listed to realize the above technical solution:
example 1
The embodiment is that shell 1 internal fixation has a backup pad 2, and vice back-fire relief bars hole 22 sets up to two, and vice back-fire relief bars hole 22 evenly distributed in backup pad 2 can make pressure impact backup pad 2 time, and everywhere pressure in backup pad 2 is more even. The detachable fastening device comprises a fixing plate 4, and the fixing block 4 can be acted on the supporting plate 2 and the fire barrier 3 by using bolts, so that the structure is more stable.
Example 2
The embodiment is that 1 internal fixation of shell has 4 backup pads 2, and the multilayer design further increases the back-fire relief effect, and vice back-fire relief bars hole 22 sets up to five, and vice back-fire relief bars hole 22 is around main back-fire relief bars hole 21 annular array in backup pad 2, and it is more perfect to make the row press the effect. The detachable fastening device comprises a pressing block 5, and the pressing block 5 can be acted on the supporting plate 2 and the fire barrier 3 through bolts, so that the structure is more stable.
Example 3
As shown in fig. 2, this embodiment is that shell 1 internal fixation has 4 backup pads 2, and the multilayer design further increases the back-fire relief effect, and vice back-fire relief bars hole 22 sets up to seven, and vice back-fire relief bars hole 22 is around main back-fire relief bars hole 21 annular array on backup pad 2, makes the row pressure effect perfect more. Can dismantle fastener includes fixed plate 4 and compact heap 5, can use the bolt to be used for fixed block 4 and compact heap 5 to be used in backup pad 2 and back-fire relief bars 3, make the structure more firm.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.
Claims (10)
1. A large-diameter flame arrester comprises a cylindrical flame arrester shell (1), and is characterized in that: the flame arrester is characterized in that more than one supporting plate (2) is fixed in the flame arrester housing (1), a main fire-arresting grid hole (21) is arranged in the middle of the supporting plate, more than one auxiliary fire-arresting grid holes (22) are arranged around the main fire-arresting grid hole (21), and a fire-arresting grid (3) is arranged in the main fire-arresting grid hole (21) and the auxiliary fire-arresting grid holes (22) in a fixed mode.
2. A large diameter flame arrester as claimed in claim 1 wherein the primary flame arrester screen openings (21) are of larger diameter than the secondary flame arrester screen openings (22).
3. A large diameter flame arrester as claimed in claim 1 wherein there are more than two secondary flame arrester apertures (22).
4. A large diameter flame arrester as claimed in claim 3 wherein the secondary flame arrester apertures (22) are evenly distributed across the support plate (2).
5. A large diameter flame arrester as claimed in claim 3 wherein the secondary flame arrester screen openings (22) are in an annular array around the primary flame arrester screen openings (21) in the support plate (2).
6. A large diameter flame arrester as claimed in claim 1 wherein the support plate (2) is secured within the flame arrester housing (1) by welding.
7. A large diameter flame arrester as claimed in claim 1 wherein the support plate (2) is secured to the flame arrester screen (3) by the provision of fastening means.
8. A large aperture flame arrestor as defined in claim 7 wherein the fastening means is a removable fastening means.
9. A large diameter flame arrester as claimed in claim 8 wherein the releasable fastening means comprises a fixing plate (4) and/or a hold-down block (5).
10. A large diameter flame arrester as claimed in claim 1 wherein the support plate (2) is secured to the flame arrester screen (3) by welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120423052.5U CN215195152U (en) | 2021-02-26 | 2021-02-26 | Large-diameter flame arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120423052.5U CN215195152U (en) | 2021-02-26 | 2021-02-26 | Large-diameter flame arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215195152U true CN215195152U (en) | 2021-12-17 |
Family
ID=79441063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120423052.5U Active CN215195152U (en) | 2021-02-26 | 2021-02-26 | Large-diameter flame arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215195152U (en) |
-
2021
- 2021-02-26 CN CN202120423052.5U patent/CN215195152U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 221000 south side of Shidai Avenue, Huaihai International Port District, Xuzhou City, Jiangsu Province Patentee after: Jiangsu Bafang Safety Equipment Co.,Ltd. Country or region after: China Address before: 221000 south side of Shidai Avenue, Chengbei Development Zone, Quanshan District, Xuzhou City, Jiangsu Province Patentee before: XUZHOU BAFANG SAFETY DEVICE CO.,LTD. Country or region before: China |