CN113018731A

CN113018731A - Dispersed airflow explosion-proof fire arrester

Info

Publication number: CN113018731A
Application number: CN202110365233.1A
Authority: CN
Inventors: 孙祥淇; 耿李凌锐; 刘刚; 李生祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-01
Filing date: 2021-04-01
Publication date: 2021-06-25

Abstract

The invention discloses a flame arrester for preventing dispersed airflow from exploding, which comprises a flame arrester body, wherein the upper end surface and the lower end surface of the flame arrester body are both fixedly connected with a connecting plate, the upper end surface of the connecting plate at the upper end is fixedly connected with an air inlet pipe, the upper end surface of the air inlet pipe is fixedly connected with an upper connecting flange, the lower end surface of the connecting plate at the lower end is fixedly connected with an air outlet pipe, and the lower end surface of the air outlet pipe is fixedly connected with a lower connecting flange. According to the invention, the screen distributor is arranged, so that the primary dispersion of airflow entering the flame arrester is realized, the impact on the internal structure of the flame arrester in the columnar airflow circulation process is reduced, the service life of the connection part of the flame arrester is prolonged, the diversion treatment of the gas flowing out of the flame arrester is realized by arranging the screen-type diversion cone, the transition cavity, the air outlet and other structures, the damage of the airflow to the central part of the flame arrester is prevented, the direct-current flow strength of the airflow is reduced, the explosion rate of the airflow is reduced, and the flame arrester is effectively protected.

Description

Dispersed airflow explosion-proof fire arrester

Technical Field

The invention relates to the technical field of flame arresters, in particular to a flame arrester for preventing dispersed airflow from exploding.

Background

The flame arrester is a safety device for preventing the flame spread of flammable gas and flammable liquid steam, generally installed in the pipeline for conveying flammable gas, or on the ventilated tank, the device for preventing the propagation of flame (deflagration or detonation) is formed from flame-arresting core, flame arrester casing and accessories, the flame arrester is also commonly used on the pipeline for conveying flammable gas, if flammable gas is ignited, the gas flame can be propagated to the whole pipe network, in order to prevent the danger, the flame arrester is also adopted, the flame arrester can also be used on the pipeline with open fire equipment, so as to prevent the accident of non-return fire, but it can not prevent the open fire combustion of flammable gas and liquid.

When current spark arrester is using, because the inside air current of spark arrester flows for the column, therefore the impact force to the spark arrester internals of the in-process that the air current flows is great, leads to the life reduction of spark arrester, and the spark arrester airflow velocity of flow is great simultaneously, and the air current discharge capacity that causes is not enough, leads to exploding in the spark arrester, and the blast air current influences great to the inner structure of spark arrester, causes scrapping of spark arrester, and we provide a dispersed air current explosion-proof's spark arrester for this reason.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a dispersed airflow explosion-proof flame arrester.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a spark arrester of dispersed air current explosion-proof, includes the spark arrester body, the equal fixedly connected with connecting plate of the upper and lower terminal surface of spark arrester body, upper end the up end fixedly connected with intake pipe of connecting plate, flange, lower extreme on the up end fixedly connected with of intake pipe the lower terminal surface fixedly connected with outlet duct of connecting plate, flange under the lower terminal surface fixedly connected with of outlet duct, all be equipped with the silk screen distributor in intake pipe and the outlet duct, be equipped with in the outlet duct and be used for giving vent to anger the protection mechanism of in-process protection to the spark arrester body.

Preferably, protection machanism is including setting up the transition chamber in the outlet duct, the below of spark arrester body is equipped with silk screen type reposition of redundant personnel awl, be equipped with the gas outlet of a plurality of circumference settings between the lateral wall of the inside wall of outlet duct and silk screen type reposition of redundant personnel awl.

Preferably, the wire mesh distributor is distributed on the side wall of the air outlet and the wire mesh type flow distribution cone.

Preferably, threaded connection holes are formed in the connecting plate, the upper connecting flange and the lower connecting flange.

Preferably, the wire mesh type tap is inverted cone, and the wire mesh type tap is made of alloy steel.

Preferably, the connecting plate is fixed with the air inlet pipe and the air outlet pipe in a welding mode.

Compared with the prior art, the invention has the beneficial effects that:

1. through setting up the silk screen distributor, realize the preliminary dispersion to getting into air current in the spark arrester, reduce the impact of column air current circulation in-process to spark arrester inner structure, improve the life at spark arrester connection position.

2. Through setting up silk screen type reposition of redundant personnel awl, transition chamber and gas outlet isotructure, realize handling the reposition of redundant personnel of flowing gas in by the spark arrester, prevent that the air current from destroying spark arrester central part, reduce the direct current strength of flow simultaneously, reduce the explosion rate of air current, effectually protect the spark arrester.

Drawings

FIG. 1 is a schematic cross-sectional view of a dispersed-airflow explosion-proof flame arrestor in accordance with the present invention;

fig. 2 is a front view of a dispersed-airflow explosion-proof flame arrestor in accordance with the present invention.

In the figure: 1 go up flange, 2 intake pipes, 3 connecting plates, 4 spark arrester bodies, 5 outlet ducts, 6 lower flange, 7 silk screen distributors, 8 silk screen type reposition of redundant personnel cones, 9 gas outlets, 10 threaded connection hole, 11 transition chamber.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Referring to fig. 1-2, a flame arrester of dispersed air current explosion-proof, including flame arrester body 4, the equal fixedly connected with connecting plate 3 of the upper and lower terminal surface of flame arrester body 4, the up end fixedly connected with intake pipe 2 of upper end connecting plate 3, flange 1 is gone up to the up end fixedly connected with of intake pipe 2, lower terminal surface fixedly connected with outlet duct 5 of lower extreme connecting plate 3, flange 6 under the lower terminal surface fixedly connected with of outlet duct 5, all be equipped with silk screen distributor 7 in intake pipe 2 and the outlet duct 5.

Be equipped with in outlet duct 5 and be used for giving vent to anger the protective mechanism of in-process protection to spark arrester body 4, protective mechanism is equipped with silk screen type spreader 8 including setting up the transition chamber 11 in outlet duct 5 below of spark arrester body 4, is equipped with the gas outlet 9 of a plurality of circumference settings between the lateral wall of the inside wall of outlet duct 5 and silk screen type spreader 8.

In the invention, the silk screen distributor 7 is distributed on the side walls of the air outlet 9 and the silk screen type flow-dividing cone 8.

And threaded connecting holes 10 are formed in the connecting plate 3, the upper connecting flange 1 and the lower connecting flange 6, and the connecting plate 3, the air inlet pipe 2 and the air outlet pipe 5 are fixedly welded.

The screen type spreader cone 8 is an inverted cone, and the screen type spreader cone 8 is made of alloy steel.

When the flame arrester is used, as shown in fig. 1-2, an upper connecting flange 1, a lower connecting flange 6 and a connecting plate 3 are respectively connected and fixed through a threaded connecting hole 10, airflow enters through an air inlet pipe 2, is primarily divided by a screen distributor 7 at the upper end and then enters a flame arrester body 4, and then is discharged into an air outlet pipe 5 through an air outlet 9 from a transition cavity 11, the airflow is dispersed by a screen-type dividing cone 8 in the process and is discharged through the air outlet 9, the airflow is further divided, meanwhile, the air is annularly divided by the screen-type dividing cone 8, the pressure of the air is reduced, the pressure of the airflow in the flowing process is effectively prevented, the explosion rate is reduced, and meanwhile, the matched screen-type dividing cone 8 protects the flame arrester body 4, so that the service life of the flame arrester body 4 is prolonged.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a spark arrester of dispersed air current explosion-proof, includes spark arrester body (4), its characterized in that, the equal fixedly connected with connecting plate (3) of the upper and lower terminal surface of spark arrester body (4), upper end up end fixedly connected with intake pipe (2) of connecting plate (3), flange (1), lower extreme on the up end fixedly connected with of intake pipe (2) the lower terminal surface fixedly connected with outlet duct (5) of connecting plate (3), flange (6) under the lower terminal surface fixedly connected with of outlet duct (5), all be equipped with silk screen distributor (7) in intake pipe (2) and outlet duct (5), be equipped with in outlet duct (5) and be used for giving vent to anger the protection mechanism of in-process protection to spark arrester body (4).

2. A flame arrester for dispersed airflow explosion protection as claimed in claim 1, wherein the protective mechanism comprises a transition chamber (11) disposed within the outlet duct (5), a mesh-type spreader cone (8) is disposed below the flame arrester body (4), and a plurality of circumferentially disposed air outlets (9) are disposed between the inner side wall of the outlet duct (5) and the side wall of the mesh-type spreader cone (8).

3. A flame arrester for dispersed airflow explosion protection as claimed in claim 2, wherein the wire mesh distributor (7) is distributed over the side walls of the air outlet (9) and the wire mesh-type diverter cone (8).

4. A dispersed airflow explosion-proof flame arrester as claimed in claim 3, characterized in that the connecting plate (3), the upper connecting flange (1) and the lower connecting flange (6) are provided with threaded connecting holes (10).

5. A dispersed-airflow explosion-proof flame arrester as claimed in claim 4, characterized in that the wire-mesh type skimmer cone (8) is an inverted cone and the wire-mesh type skimmer cone (8) is an alloy steel.

6. A dispersed airflow explosion-proof flame arrester as claimed in claim 5, characterized in that the connecting plate (3) is welded and fixed with the inlet pipe (2) and the outlet pipe (5).