CN204723634U - A kind of spark arrester - Google Patents

Abstract

The utility model discloses a flame arrester, aiming to provide a flame arrester with low cost and easy maintenance. It includes a closed box, the bottom of the box is provided with a sewage pipe, the upper end is provided with an air outlet pipe and a safety vent pipe, the side wall of the box is provided with an overflow pipe, and the box is also provided with a protruding The water inlet pipe and the air inlet pipe of the box body; the safety vent pipe is closed by the explosion-proof membrane; the end of the water inlet pipe and the air inlet pipe extending into the box body is close to the bottom of the box body and is lower than the height of the outlet end of the overflow pipe; The overflow pipe is in an inverted L shape, and its water inlet end extends into the casing and is close to the bottom of the casing. The utility model is suitable for use in various pipelines and equipment that need to be blocked by flames, and has wide application prospects.

Description

a flame arrester

technical field

The utility model relates to the technical field of explosion-proof safety equipment, in particular to a flame arrester.

Background technique

Flame arresters are generally installed in pipelines conveying combustible gases, or on ventilated tanks, to prevent the passage of flames (deflagration or detonation). The existing flame arrester has complex structure, high manufacturing cost, low equipment reliability, difficult maintenance and repair, and low safety.

Utility model content

The utility model overcomes the shortcomings of the prior art and provides a flame arrester with simple structure, fire resistance performance, low cost and easy maintenance.

In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

A kind of flame arrester, it comprises airtight box body, and the bottom of described box body is provided with blowdown pipe, and upper end is provided with air outlet pipe and safety vent pipe, and overflow pipe is arranged on the side wall of described box body, and on the box body A water inlet pipe and an air inlet pipe extending into the box are also provided; the safety vent pipe is closed by an explosion-proof membrane; the end of the water inlet pipe and the air inlet pipe extending into the box is close to the bottom of the box and is lower than the outlet of the overflow pipe The height of the end; the overflow pipe is inverted L-shaped, and its water inlet end extends into the box and is close to the bottom of the box.

Compared with the prior art, the utility model has the following advantages:

The utility model has the advantages of simple structure and convenient use. It can effectively block the flame and ensure the safety of the air intake equipment to the greatest extent. The manufacturing cost is low, the maintenance is easy, and it is suitable for various pipelines and equipment that need to be flame-blocked, and has wide application prospects.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

Fig. 1 is the structural representation of the utility model.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

The flame arrester shown in Fig. 1, it comprises airtight casing 12, and the bottom of described casing 12 is provided with blowdown pipe 13, and upper end is provided with outlet pipe 14 and safety vent pipe 15, and the sidewall of described casing 12 is provided with Overflow pipe 16, described casing 12 is also provided with water inlet pipe 17 and air inlet pipe 18 stretching into casing 12; Described safety vent pipe 15 is closed by explosion-proof film 19; One end extending into the box body 12 is close to the bottom of the box body 12 and lower than the height of the outlet end of the overflow pipe 16; Bottom, to prevent gas from flowing out of the overflow pipe with the fluctuation of the overflow water.

When the utility model is used, the liquid is injected into the tank by the water inlet pipe until the liquid level of the liquid reaches the outlet end of the overflow pipe and is constant. The liquid in the body rises to the upper space of the box, and then it is discharged from the outlet pipe into the combustion equipment. When the combustion equipment fails and flame backflow occurs, the high-temperature flame gas flows back into the box along the outlet pipe. There is no pipeline in the box that can discharge the gas, so that the pressure in the box increases until the pressure is enough to rupture the explosion-proof membrane. After that, the high-pressure gas flows from the safety The discharge of the vent pipe prevents the flame from flowing backward along the intake pipe, which may cause the explosion of the front-end gas supply equipment, and ensure the safety of the gas supply equipment to the greatest extent.

The utility model has the advantages of simple structure and convenient use. It can effectively block the flame and ensure the safety of the air intake equipment to the greatest extent. The manufacturing cost is low, the maintenance is easy, and it is suitable for various pipelines and equipment that need to be flame-blocked, and has wide application prospects.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (1)

1. a spark arrester, it is characterized in that: comprise airtight casing, the bottom of described casing arranges blow-off pipe, and upper end sets out tracheae and safety vent pipe, the sidewall of described casing arranges overflow pipe, described casing is also provided with the water inlet pipe stretching into casing and air inlet pipe; Described safety vent pipe is closed by rupture pressure disc; One end that described water inlet pipe and air inlet pipe stretch into casing close to casing bottom and lower than the height of overflow pipe water side; Described overflow pipe is inverted L-shaped, and its water inlet end stretches into casing and close to the bottom of casing.