CN210728477U

CN210728477U - Flame arrester for fan with good fire-retardant performance and low pressure drop

Info

Publication number: CN210728477U
Application number: CN201921646579.3U
Authority: CN
Inventors: 郁勇
Original assignee: Jiangsu Fushen Special Valve Co Ltd
Current assignee: Jiangsu Fushen Special Valve Co Ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-06-12
Anticipated expiration: 2029-09-29

Abstract

The utility model discloses a fire arrester for fan that back-fire relief performance is good to drop, including first casing and second casing, one side of first casing is provided with first flange to one side that the second casing is close to first casing is provided with second flange, be provided with the core between the inside of first casing and second casing, the core includes cross, arc and triangle iron, first logical groove has been seted up to the inside of arc, the utility model relates to a fire arrester technical field. This back-fire relief performance is spark arrester for fan that falls, through being provided with the core between the inside of first casing and second casing, the core includes cross, arc and triangle iron, and first logical groove has been seted up to the inside of arc, and the second logical groove has been seted up to the inside of cross, and first logical groove communicates with the second logical groove mutually to the top and the bottom of cross all communicate there is sealed mouth, improve the heat conduction effect of core, reduce the influence of intensification, reinforcing back-fire relief effect.

Description

Flame arrester for fan with good fire-retardant performance and low pressure drop

Technical Field

The utility model relates to a spark arrester technical field specifically is a spark arrester for fan that back-fire relief performance is good to fall the pressure drop.

Background

The flame arrester is a safety device for preventing the flame spread of flammable gas and flammable liquid steam, and is generally installed in a pipeline for conveying flammable gas, or on a ventilated tank, and a device for preventing propagation of flame (deflagration or detonation) from passing through is composed of a flame arrester core, a flame arrester shell and accessories, and the flame arrester is also commonly used on the pipeline for conveying flammable gas, if flammable gas is ignited, gas flame can be propagated to the whole pipe network, in order to prevent the occurrence of the danger, the flame arrester is also adopted, and the flame arrester can also be used on a pipeline with open fire equipment, so as to prevent the accident of non-return fire.

In the prior art, the fire arrester mainly realizes fire extinguishing by utilizing heat transfer effect and wall effect through the fire-arresting core plate, and particularly when continuous sparks pass through one end of the fire arrester in the using process, the core plate of the fire arrester is heated, the heat transfer effect and the wall effect are greatly reduced, and the fire extinguishing effect is poor.

SUMMERY OF THE UTILITY MODEL

The utility model provides a fire arrestor for fan that back-fire relief performance is good to drop low has solved among the prior art problem that the back-fire arrestor core use easily heaies up and causes heat conduction effect to reduce fire suppression effect difference.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a flame arrester for a fan with good flame arresting performance and low pressure comprises a first shell and a second shell, wherein a first flange part is arranged on one side of the first shell, and one side of the second shell close to the first shell is provided with a second flange part, a core plate is arranged between the interiors of the first shell and the second shell, the core plate comprises a cross, an arc plate and triangular iron, a first through groove is arranged in the arc plate, and a second through groove is arranged in the cross, the first through groove is communicated with the second through groove, the top and the bottom of the cross are communicated with sealing nozzles, the surface of the first shell is provided with a liquid storage cavity, and an L-shaped groove is formed in one side, close to the second shell, of the first flange part of the liquid storage cavity, one side of the L-shaped groove is communicated with the liquid storage cavity, and a sealing groove is formed in one side, close to the L-shaped groove, of the second flange part.

Preferably, the arc plate is a quarter of a circular arc, and the arc plate is concentrically provided with a plurality of arc plates.

Preferably, two sides of the arc-shaped plate are fixedly connected with two adjacent sides of the cross respectively, and the triangular iron is uniformly distributed along the inner side of the arc-shaped plate.

Preferably, the first shell and the second shell are provided with third flange parts on the sides far away from each other, and mounting holes are formed in the two third flange parts.

Preferably, the connecting holes are formed in the first flange part and the second flange part, and the top and the bottom of the liquid storage cavity are provided with injection and discharge valve connectors.

Preferably, the core plate is made of stainless steel material, and the inner cavities of the first shell and the second shell are funnel-shaped.

Advantageous effects

The utility model provides a fire arrestor for fan that back-fire relief performance is good to drop low. Compared with the prior art, the method has the following beneficial effects:

(1) the flame arrester for the fan with good flame-retardant performance and low pressure drop comprises a core plate, wherein the core plate is arranged between a first shell and a second shell, the core plate comprises a cross frame, an arc-shaped plate and triangular iron, a first through groove is formed in the arc-shaped plate, a second through groove is formed in the cross frame, the first through groove is communicated with the second through groove, the top and the bottom of the cross frame are communicated with sealing nozzles, a liquid storage cavity is formed in the surface of the first shell, an L-shaped groove is formed in one side, close to the second shell, of a first flange part of the liquid storage cavity, one side of the L-shaped groove is communicated with the liquid storage cavity, a sealing groove is formed in one side, close to the L-shaped groove, of the second flange part, the arc-shaped plate is a quarter circular arc, the arc-shaped plate is concentrically provided with a plurality of arc-shaped plates, the two sides of the, the coolant can be injected into the liquid storage cavity after the flame arrester is installed, so that the coolant is filled in the arc-shaped plate, the heat transfer effect of the core plate is greatly improved, the temperature rise influence of the core plate is reduced, and the fire arresting effect is improved.

(2) This spark arrester for fan that back-fire relief performance is good to fall voltage, one side of keeping away from mutually through first casing and second casing all is provided with third flange portion, and the mounting hole has all been seted up to the inside of two third flange portions, the connecting hole has all been seted up to the inside of first flange portion and second flange portion, and the top and the bottom in stock solution chamber all are provided with notes row valve joint, the core is made for stainless steel material, and the inner chamber of first casing and second casing is hourglass hopper-shaped, can conveniently annotate the coolant of stock solution intracavity portion and discharge the operation through annotating row valve joint, stainless steel core corrosion resistant is high temperature resistant, long service life, the casing that leaks hopper-shaped makes the wind channel form expands the dress, alleviate the pressure drop influence that the core caused to wind-force transmission.

Drawings

FIG. 1 is a sectional view of the structure of the present invention;

FIG. 2 is a schematic view of the core plate structure of the present invention;

FIG. 3 is a schematic view of the arc-shaped plate structure of the present invention;

fig. 4 is a partially enlarged view of a portion a in fig. 1 according to the present invention.

In the figure: 1-a first shell, 2-a second shell, 3-a first flange part, 4-a second flange part, 5-a core plate, 51-a cross, 52-an arc plate, 53-triangular iron, 6-a first through groove, 7-a second through groove, 8-a sealing nozzle, 9-a liquid storage cavity, 10-an L-shaped groove, 11-a sealing groove, 12-a third flange part, 13-a mounting hole, 14-a connecting hole and 15-a filling and discharging valve joint.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a flame arrester for a fan with good flame-retardant performance and low pressure drop comprises a first shell 1 and a second shell 2, wherein the first shell 1 and the second shell 2 are internally provided with a limit matched with a core plate 5, the core plate 5 is easy to load, meanwhile, the sealing between the core plate 5 and the shells is enhanced, one side of the first shell 1 is provided with a first flange part 3, one side of the second shell 2 close to the first shell 1 is provided with a second flange part 4, the sides of the first shell 1 and the second shell 2 far away from each other are respectively provided with a third flange part 12, the insides of the two third flange parts 12 are respectively provided with a mounting hole 13, the insides of the first flange part 3 and the second flange part 4 are respectively provided with a connecting hole 14, the top and the bottom of a liquid storage cavity 9 are respectively provided with a filling and discharging valve joint 15, the core plate 5 is arranged between the insides of the first shell 1 and the second shell 2, and the core plate 5 is made of stainless, the inner cavities of the first shell 1 and the second shell 2 are funnel-shaped, the core plate 5 comprises a cross 51, an arc 52 and triangular iron 53, the arc 52 is a quarter arc, the arc 52 is concentrically provided with a plurality of arcs, two sides of the arc 52 are respectively fixedly connected with two adjacent side edges of the cross 51, the triangular iron 53 is uniformly distributed along the inner side of the arc 52, a first through groove 6 is arranged inside the arc 52, a second through groove 7 is arranged inside the cross 51, the first through groove 6 is communicated with the second through groove 7, the top and the bottom of the cross 51 are both communicated with sealing nozzles 8, the flame arrester can be filled with refrigerant through a filling and discharging valve connector 15 after being installed, the refrigerant enters the second through groove 7 inside the cross 51 through a liquid storage cavity 9, an L-shaped groove 10 and the sealing nozzles 8, and then enters the first through groove 7 inside the arc 52 through the second through groove 7, so that the arc plate 52 and the triangular iron 53 are cooled, the heat transfer effect of the channel formed by the triangular iron 53 is improved, thereby ensuring the fire extinguishing effect, when the coolant fills the core plate 5 and the liquid level line is positioned at the position higher than the shell in the liquid storage cavity 9, enough coolant is provided to ensure the best heat transfer state, the liquid storage cavity 9 is arranged on the surface of the first shell 1, and one side of the first flange part 3 of the liquid storage cavity 9, which is close to the second shell 2, is provided with an L-shaped groove 10, one side of the L-shaped groove 10 is communicated with the liquid storage cavity 9, a sealing groove 11 is arranged on one side of the second flange part 4 close to the L-shaped groove 10, one side of the L-shaped groove 10 opposite to the inner wall of the sealing groove 11 is matched with the sealing nozzle 8, a sealing ring is arranged on the surface of the sealing nozzle 8, the sealing state is kept between the surface of the sealing nozzle 8 and two groove walls after the shell is connected, and those not described in detail in this specification are well within the skill of those in the art.

When the fire extinguisher is used, sparks in the air duct pass through the fine channel formed by the triangular iron 53, the fire is extinguished by utilizing the heat transfer effect and the wall effect, the inner wall of the channel is heated up under the condition that continuous flame occurs at one end of the fire arrester, the refrigerant plays a role at the moment, the refrigerant absorbs the heat of the heating core plate 5 under the action of heat conduction flow and realizes heat convection in the self reserve volume, so that the temperatures of the arc plate 52 and the triangular iron 53 are reduced, the low-temperature keeping effect of the channel in the inner wall of the triangular iron 53 is enhanced, the heat transfer effect is improved, and the good fire extinguishing effect.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a back-fire relief performance is spark arrester for fan that reduces with good pressure, includes first casing (1) and second casing (2), one side of first casing (1) is provided with first flange portion (3) to one side that second casing (2) are close to first casing (1) is provided with second flange portion (4), its characterized in that: a core plate (5) is arranged between the first shell (1) and the second shell (2), the core plate (5) comprises a cross (51), an arc-shaped plate (52) and a triangular iron (53), a first through groove (6) is formed in the arc-shaped plate (52), and a second through groove (7) is arranged in the cross (51), the first through groove (6) is communicated with the second through groove (7), the top and the bottom of the cross (51) are communicated with sealing nozzles (8), a liquid storage cavity (9) is arranged on the surface of the first shell (1), and one side of the first flange part (3) of the liquid storage cavity (9) close to the second shell (2) is provided with an L-shaped groove (10), one side of the L-shaped groove (10) is communicated with the liquid storage cavity (9), and one side of the second flange part (4) close to the L-shaped groove (10) is provided with a sealing groove (11).

2. A flame arrester for a fan with good fire arresting performance and low pressure drop as claimed in claim 1, wherein: the arc-shaped plate (52) is a quarter of arc, and a plurality of arc-shaped plates (52) are concentrically arranged.

3. A flame arrester for a fan with good fire arresting performance and low pressure drop as claimed in claim 1, wherein: two sides of the arc-shaped plate (52) are fixedly connected with two adjacent side edges of the cross (51) respectively, and the triangular iron (53) is uniformly distributed along the inner side of the arc-shaped plate (52).

4. A flame arrester for a fan with good fire arresting performance and low pressure drop as claimed in claim 1, wherein: one side that first casing (1) and second casing (2) kept away from mutually all is provided with third flange portion (12) to mounting hole (13) have all been seted up to the inside of two third flange portions (12).

5. A flame arrester for a fan with good fire arresting performance and low pressure drop as claimed in claim 1, wherein: connecting holes (14) are formed in the first flange portion (3) and the second flange portion (4), and the top and the bottom of the liquid storage cavity (9) are provided with injection and discharge valve connectors (15).

6. A flame arrester for a fan with good fire arresting performance and low pressure drop as claimed in claim 1, wherein: the core plate (5) is made of stainless steel materials, and inner cavities of the first shell (1) and the second shell (2) are funnel-shaped.