CN212817731U - Low multiple air foam generator - Google Patents
Low multiple air foam generator Download PDFInfo
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- CN212817731U CN212817731U CN202021598983.0U CN202021598983U CN212817731U CN 212817731 U CN212817731 U CN 212817731U CN 202021598983 U CN202021598983 U CN 202021598983U CN 212817731 U CN212817731 U CN 212817731U
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- foam generator
- multiple air
- air foam
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Abstract
The utility model provides a low multiple air foam generator, includes first casing and second casing, is equipped with the otter board of breathing in between first casing and the second casing, first casing dorsad the one end of second casing is the water inlet, is equipped with the nozzle towards the one end of second casing, and the one end of second casing towards first casing inlays in proper order and is equipped with metal rupture disk and annular seal gasket, and one side that annular seal gasket faced first casing is equipped with the annular clamp plate, and annular clamp plate, annular seal gasket and metal rupture disk pass through the bolt and are connected with the second casing, and the one end that the second casing dorsad first casing is connected with the storage tank through pull type flat welding flange. The utility model discloses a set up high temperature resistant metal rupture disk, can increase high temperature resistance for performance and burst pressure are more stable, moreover because the pulling force effect between the metal is inside, make it can bear certain backpressure, and need not any bracket and just can bear pressure and satisfy the foam generator foaming condition, and forward burst pressure can guarantee again.
Description
Technical Field
The utility model relates to a fire-fighting equipment technical field, in particular to low multiple air foam generator.
Background
Air foam generators are a relatively mature foam generating device within the fire fighting industry, wherein the sealing glass in the equipment serves to seal the reservoir throughout the device, normally preventing the gas therein from leaking into the air.
Along with the development of the petroleum and petrochemical industry, the existing domestic low-pressure high-temperature storage tanks are more and more, the existing air foam generators in the domestic market are all rupture disks made of common glass, the common glass is of a straight-plate type indented structure, the structural mode is easy to break at low pressure, the pressure-bearing effect is extremely poor, the air foam generators are only suitable for being installed in a normal-pressure storage tank, and the air foam generators are unstable and easy to break under the high-temperature environment, so that the gas leakage in the storage tank is caused, the hidden dangers of fire, explosion, air pollution and the like are caused, the unimaginable loss is caused to enterprises, and the life safety of people is threatened.
SUMMERY OF THE UTILITY MODEL
Based on this, the utility model aims at providing a low multiple air foam generator adopts high temperature resistant metal rupture disk to replace glass rupture disk to increase high temperature resistance.
A low multiple air foam generator comprises a first shell and a second shell which are connected through a pin shaft, wherein an air suction screen plate is arranged between the first shell and the second shell, one end, facing away from the second shell, of the first shell is a water inlet, a nozzle is arranged at one end, facing towards the second shell, of the second shell, a metal rupture disk and an annular sealing gasket are sequentially embedded at one end, facing towards the first shell, of the second shell, the annular sealing gasket is arranged at one side, facing towards the first shell, of the annular sealing gasket, the annular sealing gasket and the metal rupture disk are connected with the second shell through bolts, one end, facing away from the first shell, of the second shell is connected with a storage tank through a plate type flat welding flange, and the metal rupture disk has high temperature resistance and is of an inverted arch structure protruding towards the direction of the first shell.
Compared with the prior art, the utility model discloses in, through setting up high temperature resistant metal rupture disk, can increase high temperature resistance for performance and burst pressure are more stable, moreover because the anti-arch structure, the pulling force effect between the metal is inside, make it can bear certain backpressure, and need not any bracket just can bear pressure and satisfy the foam generator foaming condition, and forward burst pressure can guarantee again.
Further, the metal rupture disk comprises an arc-shaped protruding part located in the middle and plane parts connected with two ends of the arc-shaped protruding part, wherein one side surface of the plane part is attached to the second shell, and the other side surface of the plane part is attached to the annular sealing gasket.
Further, the outer side surface of the circular arc protrusion facing the first housing is flush with the left side surface of the annular pressure plate.
Further, the inner diameter of the water inlet is gradually reduced from the outer end to the nozzle.
Further, the air suction screen plate is embedded on the outer walls of the first shell and the second shell.
Further, a flange gasket is arranged between the plate type flat welding flange and the second shell.
Drawings
Fig. 1 is a schematic cross-sectional view of a low multiple air bubble generator according to the present invention.
Description of the main element symbols:
| |
10 | |
101 |
| Air suction screen plate | 12 | Nozzle with a |
13 |
| |
14 | Arc convex |
141 |
| |
142 | |
15 |
| Annular |
16 | Plate type |
17 |
The following detailed description of the invention will be further described in conjunction with the above-identified drawings.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
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.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, an embodiment of the present invention provides a low multiple air bubble generator, which includes a first housing 10 and a second housing 11 connected by a pin, a gas suction screen plate 12 is arranged between the first shell 10 and the second shell 11, a water inlet 101 is arranged at one end of the first shell 10, which is back to the second shell 11, a nozzle 13 is arranged at one end, which faces the second shell 11, a metal rupture disk 14 and an annular sealing gasket 15 are sequentially embedded at one end of the second shell 11 facing the first shell 10, the side of the annular sealing gasket 15 facing the first casing 10 is provided with an annular pressure plate 16, the annular pressure plate 16, the annular sealing gasket 15 and the metal rupture disk 14 are connected with the second shell 11 through bolts, the end of the second housing 11 facing away from the first housing 10 is connected to a tank (not shown) by a flat-welded flange 17.
It is required to explain, the utility model discloses in, metal rupture disk 14 has high temperature resistance for performance and burst pressure are more stable, and are the orientation the convex anti-arch structure of first casing 10 direction, the mixed liquid of foam and water forms the water column through the nozzle and sprays metal rupture disk 14's surface, the air that inhales simultaneously through breathing in otter board 12 and mixed liquid impact metal rupture disk 14's surface, the surface impact through anti-arch structure for the foam produces more evenly and dispersion, and the effect is better. When the forward pressure is constant, the reverse pressure gas can not leak due to the sealing and pressure bearing of the annular sealing gasket 15 and the metal blasting diaphragm 14, when the forward foam mixed liquid with the pressure generates high-pressure water columns through the nozzle 13 and generates suction force to enable the foam liquid to be fully mixed and foamed to form air foam, and the pressure exceeds the forward pressure bearing limit of the metal blasting diaphragm 14, the metal blasting diaphragm 14 is broken at this time, and the air foam is ejected into the storage tank without obstruction.
In a preferred embodiment of the present invention, the metal rupture disk 14 includes an arc protrusion 141 located in the middle, and a plane portion 142 connected to both ends of the arc protrusion 141, a side surface of the plane portion 142 is attached to the second housing 11, and another side surface is attached to the annular sealing gasket 15. The installation is facilitated by the flat portions 142, and the foam generation is made more uniform and dispersed by the arc protrusions 141.
Further, the outer side surface of the circular arc protrusion 141 facing the first casing 10 is flush with the left side surface of the annular pressure plate 16.
In another preferred embodiment of the present invention, the inner diameter of the water inlet 101 is gradually reduced from the outer end to the nozzle, so as to increase the pressure of the mixture of the foam and the water entering the nozzle 13.
Referring to fig. 1, the suction net plate 12 is embedded on the outer walls of the first housing 10 and the second housing 11 to facilitate the entry of air.
Referring to fig. 1, a flange gasket is disposed between the plate type flat welding flange 17 and the second shell 11, and the flange gasket is used to enhance the sealing performance between the second shell 11 and the storage tank.
To sum up, among the low multiple air foam generator, through setting up high temperature resistant metal rupture disk 14, can increase high temperature resistance for performance and burst pressure are more stable, and because the anti-arch structure, the pulling force effect between the metal is inside moreover, make it can bear certain backpressure, and need not any bracket just can bear pressure and satisfy foam generator foaming condition, and forward burst pressure can guarantee again.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (6)
1. The utility model provides a low multiple air foam generator, includes first casing and the second casing through round pin hub connection, be equipped with between first casing and the second casing and inhale otter board, its characterized in that: the first shell is back to one end of the second shell is a water inlet, a nozzle is arranged at one end of the second shell facing the first shell, a metal rupture disc and an annular sealing gasket are sequentially embedded at one end of the second shell facing the first shell, an annular pressing plate is arranged on one side of the annular sealing gasket facing the first shell, the annular pressing plate, the annular sealing gasket and the metal rupture disc are connected with the second shell through bolts, one end of the second shell facing back to the first shell is connected with a storage tank through a pull-type flat welding flange, and the metal rupture disc has high temperature resistance and is of an inverted arch structure facing the direction of the first shell.
2. The low multiple air foam generator of claim 1, wherein the metal rupture disk includes a circular arc protrusion in the middle and a flat surface connecting two ends of the circular arc protrusion, and one side surface of the flat surface is attached to the second housing and the other side surface is attached to the annular sealing gasket.
3. The low multiple air foam generator of claim 2, wherein an outer side surface of the circular arc protrusion facing the first housing is flush with a left side surface of the annular pressure plate.
4. The low multiple air foam generator of claim 1, wherein the inner diameter of the water inlet decreases from the outer end to the nozzle.
5. The low multiple air foam generator of claim 1, wherein the suction screen is embedded in an outer wall of the first and second housings.
6. The low multiple air foam generator of claim 1, wherein a flange gasket is disposed between the wrench flat welded flange and the second housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021598983.0U CN212817731U (en) | 2020-08-05 | 2020-08-05 | Low multiple air foam generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021598983.0U CN212817731U (en) | 2020-08-05 | 2020-08-05 | Low multiple air foam generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212817731U true CN212817731U (en) | 2021-03-30 |
Family
ID=75128786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021598983.0U Active CN212817731U (en) | 2020-08-05 | 2020-08-05 | Low multiple air foam generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212817731U (en) |
-
2020
- 2020-08-05 CN CN202021598983.0U patent/CN212817731U/en active Active
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