CN210344428U - Natural gas anti-backfire safety ball valve - Google Patents
Natural gas anti-backfire safety ball valve Download PDFInfo
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- CN210344428U CN210344428U CN201921092717.8U CN201921092717U CN210344428U CN 210344428 U CN210344428 U CN 210344428U CN 201921092717 U CN201921092717 U CN 201921092717U CN 210344428 U CN210344428 U CN 210344428U
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- ball valve
- honeycomb
- natural gas
- shell
- safety ball
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Abstract
The utility model relates to a natural gas anti-backfire safety ball valve. The technical scheme is as follows: the honeycomb fire-retardant plate is characterized in that an air inlet is formed in the center of the top of the shell, a fixed ring block is welded to the middle upper portion of the inside of the shell, a honeycomb fire-retardant plate is arranged on the upper portion of the fixed ring block, a baffle is arranged on the lower portion of the fixed ring block, a cylindrical supporting tube is integrally arranged on the lower portion of the baffle, an air vent is formed in the supporting tube, a spring is arranged in the center of the inside of the supporting tube, a supporting plate is arranged on the lower portion of the spring, the supporting plate and the shell are. The utility model has the advantages that: the utility model discloses an aspect can prevent the production of pipeline tempering, and on the other hand can realize blocking at self-closing air inlet when producing the tempering.
Description
Technical Field
The utility model relates to a natural gas line device, in particular to natural gas anti-backfire safety ball valve.
Background
The gasification popularity in China is higher and higher, but because the gas production levels in different areas are not consistent, the gas components and the gas pressure can be changed frequently, so that the gas stove can be inevitably tempered in the use process, the pipeline pressure in the stove is lower than the atmospheric pressure, the tempering is easy, when the gas is combusted, the flame retracts to the head of the burner through the fire hole, and the phenomenon of combustion in the gas pipeline is called tempering. When the backfire occurs, the phenomena of high noise, shortened flame, unclear flame inner and outer cones and the like can occur, the normal combustion is damaged, the gas pipeline is damaged, and even explosion accidents can be caused. Therefore, it is necessary to design an anti-backfire device for natural gas blowout gas pipelines to prevent and block the combustion in the gas pipelines, so as to effectively prevent backfire.
Disclosure of Invention
The utility model aims at providing a natural gas anti-backfire safety ball valve to the above-mentioned defect that prior art exists, the utility model discloses an aspect can prevent the production of pipeline tempering, and on the other hand can be when producing the tempering self-closing air inlet.
The technical scheme is as follows: including the intake pipe, the outlet duct, anti-backfire safety ball valve, the intake pipe is connected on anti-backfire safety ball valve's upper portion, anti-backfire safety ball valve's sub-unit connection outlet duct, anti-backfire safety ball valve includes the casing, the air inlet, honeycomb back-fire relief piece, the retaining ring piece, the baffle, a spring, the stay tube, the air vent, the backup pad, the gas outlet, top center at the casing is equipped with the air inlet, upper portion welding has the retaining ring piece in the inside of casing, upper portion at the retaining ring piece is equipped with honeycomb back-fire relief piece, lower part at the retaining ring piece is equipped with the baffle, the integrative cylindric stay tube that is equipped with in lower part of baffle, the air vent has been seted up on the stay tube, inside center at the stay tube is equipped with the.
Preferably, the top of the spring is in contact with the bottom of the baffle, the bottom of the spring is in contact with the upper portion of the support plate, and the bottom of the support tube is not in contact with the upper portion of the support plate.
Preferably, the diameter of the baffle is larger than the inner diameter of the fixed ring block.
Preferably, the top outer wall of the honeycomb fire retardant sheet is attached to the inner wall of the shell, and the diameter of the bottom of the honeycomb fire retardant sheet is larger than the inner diameter of the fixed ring block.
Preferably, honeycomb holes are uniformly distributed on the honeycomb fire-retardant plate, and the honeycomb holes are in the shape of a regular hexagon.
Preferably, a ball valve is arranged on the air outlet pipe, a single chip microcomputer is arranged on the ball valve, and a pressure sensor is arranged in the shell.
The utility model has the advantages that: the utility model discloses an aspect can prevent the production of pipeline tempering, and on the other hand can realize blocking at self-closing air inlet when producing the tempering, the utility model discloses anti-backfire safety ball valve can be opened when normal atmospheric pressure (pipeline pressure is greater than atmospheric pressure), and when pipeline pressure is less than atmospheric pressure, anti-backfire safety ball valve closes, avoids the production of pipeline tempering as far as possible, the utility model discloses be equipped with honeycomb back-fire relief piece, honeycomb back-fire relief piece is heated the shrink, and honeycomb holes are closed on the shrink back honeycomb back-fire relief piece, realize the self-closing of air inlet, block the natural gas and get into.
Drawings
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of an anti-backfire safety ball valve;
FIG. 3 is a cross-sectional view of a honeycomb fire barrier sheet;
FIG. 4 is a schematic structural view of embodiment 2;
FIG. 5 is a schematic structural view of the anti-backfire safety ball valve of the embodiment 2;
FIG. 6 is a schematic structural view of an anti-backfire safety ball valve according to embodiment 3;
FIG. 7 is a schematic structural view of an anti-backfire safety ball valve according to embodiment 4;
in the figure: the device comprises a shell 1, an air inlet 2, a honeycomb fire-retardant sheet 3, a fixed ring block 4, a baffle 5, a spring 6, a support tube 7, an air vent 8, a support plate 9, a ball valve 10, an air outlet 11, a honeycomb hole 12, an air inlet pipe 13, an air outlet pipe 14 and an anti-backfire safety ball valve 15.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Example 1:
the utility model provides a natural gas anti-backfire safety ball valve, which comprises an air inlet pipe 13, an air outlet pipe 14, an anti-backfire safety ball valve 15, wherein the upper part of the anti-backfire safety ball valve 15 is connected with the air inlet pipe 13, the lower part of the anti-backfire safety ball valve 15 is connected with the air outlet pipe 14, the anti-backfire safety ball valve 15 comprises a shell 1, an air inlet 2, a honeycomb fire-retardant sheet 3, a fixed ring block 4, a baffle 5, a spring 6, a supporting pipe 7, an air vent 8, a supporting plate 9 and an air outlet 11, the air inlet 2 is arranged at the center of the top of the shell 1, the fixed ring block 4 is welded at the middle upper part in the shell 1, the honeycomb fire-retardant sheet 3 is arranged at the upper part of the fixed ring block 4, the baffle 5 is arranged at the lower part of the fixed ring block 4, the cylindrical supporting pipe 7 is integrally arranged at, the support plate 9 and the shell 1 are welded and fixed, the support plate 9 is rectangular, the support plate 9 and the sealed shell 1 cannot be sealed, and an air outlet 11 is formed in the center of the bottom of the shell 1.
Wherein, the top of spring 6 and the bottom contact of baffle 5, the bottom of spring 6 and the upper portion contact of backup pad 9, and the bottom of stay tube 7 and the upper portion of backup pad 9 do not contact, make the spring can contract, do not receive the influence of stay tube, and during normal pressure, when baffle 5 passed through natural gas pressure and moved down, spring 6 can contract, and when pipeline pressure was less than atmospheric pressure, can make the baffle kick-back through the elasticity of spring, realizes sealing.
In addition, the diameter of the baffle 5 is larger than the inner diameter of the fixed ring block 4, so that the fixed ring block 4 can block the baffle 5, and the fixed ring block 4 and the baffle 5 can be sealed to realize a closed state.
In addition, the top outer wall of honeycomb back-fire relief piece 3 and the laminating of 1 inner wall of casing, the bottom diameter of honeycomb back-fire relief piece 3 is greater than the internal diameter of fixed ring piece 4, supports honeycomb back-fire relief piece 3 through fixed ring piece 4 and can not leak down, realizes the fixed of honeycomb back-fire relief piece 3.
In addition, evenly distributed has honeycomb holes 12 on the honeycomb back-fire relief piece 3, and honeycomb holes 12's shape is regular hexagon, and natural gas is at first through honeycomb holes 12 of honeycomb back-fire relief piece 3 in casing 1, and when the tempering appeared, honeycomb back-fire relief piece 3 was heated the shrink, and honeycomb holes 12 are closed, realized the self-closing of air inlet, blocked the natural gas and got into.
The utility model discloses the theory of operation:
natural gas enters the shell 1 of the anti-backfire safety ball valve 15 from the gas inlet pipe 13 through the gas inlet 2, the natural gas firstly passes through the honeycomb holes 12 of the honeycomb fire-retardant pieces 3 in the shell 1, the baffle 5 moves downwards through the pressure of the natural gas, the spring 6 contracts, the baffle 5 drives the supporting tube 7 to move downwards, the baffle 5 does not move downwards when the bottom of the supporting tube 7 is contacted with the upper part of the supporting plate 9, the natural gas passes through the gap between the baffle 5 and the fixed ring block 4 and then passes through the vent hole on the supporting tube 7, passes through the lower part of the shell 1 and then comes out of the gas outlet 11 to enter the, when the pressure of the pipeline is less than the atmospheric pressure, the baffle plate is driven to move upwards by the elasticity of the spring 6, so that the baffle plate 5 is contacted with the fixed ring block 4 to realize the closing state, when tempering occurs, the honeycomb fire-retardant pieces 3 are heated and shrunk, the honeycomb holes 12 are closed, the air inlet is automatically closed, and natural gas is blocked from entering the honeycomb holes.
The utility model discloses an aspect can prevent the production of pipeline tempering, and on the other hand can realize blocking at self-closing air inlet when producing the tempering, the utility model discloses anti-backfire safety ball valve can be opened when normal atmospheric pressure (pipeline pressure is greater than atmospheric pressure), and when pipeline pressure is less than atmospheric pressure, anti-backfire safety ball valve closes, avoids the production of pipeline tempering as far as possible, the utility model discloses be equipped with honeycomb back-fire relief piece, honeycomb back-fire relief piece is heated the shrink, and honeycomb holes are closed on the shrink back honeycomb back-fire relief piece, realize the self-closing of air inlet, block the natural gas and get into.
Example 2:
the utility model provides a natural gas anti-backfire safety ball valve, which comprises an air inlet pipe 13, an air outlet pipe 14, an anti-backfire safety ball valve 15, wherein the upper part of the anti-backfire safety ball valve 15 is connected with the air inlet pipe 13, the lower part of the anti-backfire safety ball valve 15 is connected with the air outlet pipe 14, the anti-backfire safety ball valve 15 comprises a shell 1, an air inlet 2, a honeycomb fire-retardant sheet 3, a fixed ring block 4, a baffle 5, a spring 6, a supporting pipe 7, an air vent 8, a supporting plate 9 and an air outlet 11, the air inlet 2 is arranged at the center of the top of the shell 1, the fixed ring block 4 is welded at the middle upper part in the shell 1, the honeycomb fire-retardant sheet 3 is arranged at the upper part of the fixed ring block 4, the baffle 5 is arranged at the lower part of the fixed ring block 4, the cylindrical supporting pipe 7 is integrally arranged at, the support plate 9 and the shell 1 are welded and fixed, the support plate 9 is rectangular, the support plate 9 and the sealed shell 1 cannot be sealed, and an air outlet 11 is formed in the center of the bottom of the shell 1.
Wherein, the top of spring 6 and the bottom contact of baffle 5, the bottom of spring 6 and the upper portion contact of backup pad 9, and the bottom of stay tube 7 and the upper portion of backup pad 9 do not contact, make the spring can contract, do not receive the influence of stay tube, and during normal pressure, when baffle 5 passed through natural gas pressure and moved down, spring 6 can contract, and when pipeline pressure was less than atmospheric pressure, can make the baffle kick-back through the elasticity of spring, realizes sealing.
In addition, the diameter of the baffle 5 is larger than the inner diameter of the fixed ring block 4, so that the fixed ring block 4 can block the baffle 5, and the fixed ring block 4 and the baffle 5 can be sealed to realize a closed state.
In addition, the top outer wall of honeycomb back-fire relief piece 3 and the laminating of 1 inner wall of casing, the bottom diameter of honeycomb back-fire relief piece 3 is greater than the internal diameter of fixed ring piece 4, supports honeycomb back-fire relief piece 3 through fixed ring piece 4 and can not leak down, realizes the fixed of honeycomb back-fire relief piece 3.
In addition, evenly distributed has honeycomb holes 12 on the honeycomb back-fire relief piece 3, and honeycomb holes 12's shape is regular hexagon, and natural gas is at first through honeycomb holes 12 of honeycomb back-fire relief piece 3 in casing 1, and when the tempering appeared, honeycomb back-fire relief piece 3 was heated the shrink, and honeycomb holes 12 are closed, realized the self-closing of air inlet, blocked the natural gas and got into.
In addition, evenly distributed has honeycomb holes 12 on the honeycomb back-fire relief piece 3, and honeycomb holes 12's shape is the square, and the natural gas is at first through honeycomb holes 12 of honeycomb back-fire relief piece 3 in casing 1, and when the tempering appeared, honeycomb back-fire relief piece 3 is heated the shrink, and honeycomb holes 12 are closed, realizes the self-closing of air inlet, blocks the natural gas and gets into, and the honeycomb holes 12 of square are comparatively easy for regular hexagon's honeycomb holes during the closure.
And a ball valve 10 is arranged on the air inlet pipe 13, a single chip microcomputer 16 is arranged on the ball valve 10, a pressure sensor 17 is arranged in the shell 1, the sensor 17 is welded on the supporting plate 9, when the pressure value of the pressure sensor 17 in the shell 1 is abnormal, a signal is sent to the single chip microcomputer 16, and the single chip microcomputer 16 controls the ball valve 10 to be closed, so that natural gas conveying is stopped.
The utility model discloses the theory of operation:
natural gas enters the shell 1 of the anti-backfire safety ball valve 15 from the gas inlet pipe 13 through the gas inlet 2, the natural gas firstly passes through the honeycomb holes 12 of the honeycomb fire-retardant pieces 3 in the shell 1, the baffle 5 moves downwards through the pressure of the natural gas, the spring 6 contracts, the baffle 5 drives the supporting pipe 7 to move downwards, the baffle 5 does not move downwards when the bottom of the supporting pipe 7 is contacted with the upper part of the supporting plate 9, the natural gas passes through the gap between the baffle 5 and the fixed ring block 4 and then passes through the vent hole on the supporting pipe 7 to pass through the lower part of the shell 1 and then come out from the gas outlet 11 to enter the gas outlet pipe 14, when the pressure of the pipeline is less than the atmospheric pressure, the baffle is driven to move upwards through the elasticity of the spring 6, so that the baffle 5 is contacted with the fixed ring block 4 to realize the closing state, when backfire occurs, the honeycomb, when the pressure value of the pressure sensor 17 in the shell 1 is abnormal, a signal is sent to the single chip microcomputer 16, and the single chip microcomputer 16 controls the ball valve 10 to be closed, so that natural gas conveying is stopped.
The utility model discloses an aspect can prevent the production of pipeline tempering, and on the other hand can be when producing the tempering self-closing air inlet, and the realization is blocked, the utility model discloses anti-backfire safety ball valve can be opened when normal atmospheric pressure (pipeline pressure is greater than atmospheric pressure), and when pipeline pressure is less than atmospheric pressure, anti-backfire safety ball valve closes, avoids the production of pipeline tempering as far as possible, the utility model discloses be equipped with honeycomb back-fire relief piece, honeycomb back-fire relief piece is heated the shrink, and honeycomb holes are closed on the honeycomb back-fire relief piece after the shrink, realize the self-closing of air inlet, block the natural gas and get into, when 1 inside pressure sensor 17 pressure values of casing are unusual, give singlechip 16 with signaling, and singlechip 16 control ball valve 10 closes to stop the natural gas and carry, further prevent to produce.
Example 3:
evenly distributed has honeycomb holes 12 on the honeycomb back-fire relief piece 3, and honeycomb holes 12's shape is the square, and the natural gas is at first through honeycomb holes 12 of honeycomb back-fire relief piece 3 in casing 1, and when the tempering appeared, honeycomb back-fire relief piece 3 is heated the shrink, and honeycomb holes 12 are closed, realizes the self-closing of air inlet, blocks the natural gas and gets into, and honeycomb holes 12 of square are comparatively easy for regular hexagon's honeycomb holes during the closure.
Example 4:
evenly distributed has honeycomb holes 12 on the honeycomb back-fire relief piece 3, and honeycomb holes 12's shape is triangle-shaped, and when the tempering appeared, honeycomb back-fire relief piece 3 was heated the shrink, and honeycomb holes 12 are closed, realizes the self-closing of air inlet, blocks the natural gas and gets into, and triangle-shaped honeycomb holes 12 is for the honeycomb holes 12 of square, and when honeycomb back-fire relief piece 3 shrink, honeycomb holes 12 closed seal was higher.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solutions described above. Therefore, any simple modifications or equivalent replacements made according to the technical solution of the present invention belong to the scope of the claimed invention as far as possible.
Claims (6)
1. The utility model provides a natural gas anti-backfire safety ball valve which characterized by: comprises an air inlet pipe (13), an air outlet pipe (14) and an anti-backfire safety ball valve (15), wherein the upper part of the anti-backfire safety ball valve (15) is connected with the air inlet pipe (13), the lower part of the anti-backfire safety ball valve (15) is connected with the air outlet pipe (14), the anti-backfire safety ball valve (15) comprises a shell (1), an air inlet (2), a honeycomb fire retardant sheet (3), a fixed ring block (4), a baffle plate (5), a spring (6), a supporting pipe (7), an air vent (8), a supporting plate (9) and an air outlet (11), the air inlet (2) is arranged at the center of the top of the shell (1), the fixed ring block (4) is welded at the middle upper part in the shell (1), the honeycomb fire retardant sheet (3) is arranged at the upper part of the fixed ring block (4), the baffle plate (5) is arranged, an air vent (8) is formed in the supporting pipe (7), a spring (6) is arranged in the center of the inside of the supporting pipe (7), a supporting plate (9) is arranged on the lower portion of the spring (6), the supporting plate (9) and the shell (1) are welded and fixed, and an air outlet (11) is formed in the center of the bottom of the shell (1).
2. The natural gas anti-backfire safety ball valve as claimed in claim 1, wherein: the top of the spring (6) is contacted with the bottom of the baffle (5), the bottom of the spring (6) is contacted with the upper part of the supporting plate (9), and the bottom of the supporting tube (7) is not contacted with the upper part of the supporting plate (9).
3. The natural gas anti-backfire safety ball valve as claimed in claim 1, wherein: the diameter of the baffle (5) is larger than the inner diameter of the fixed ring block (4).
4. The natural gas anti-backfire safety ball valve as claimed in claim 1, wherein: the top outer wall of the honeycomb fire retardant sheet (3) is attached to the inner wall of the shell (1), and the diameter of the bottom of the honeycomb fire retardant sheet (3) is larger than the inner diameter of the fixed ring block (4).
5. The natural gas anti-backfire safety ball valve as claimed in claim 4, wherein: honeycomb holes (12) are uniformly distributed on the honeycomb fire-retardant sheet (3), and the honeycomb holes (12) are in the shape of a regular hexagon.
6. The natural gas anti-backfire safety ball valve as claimed in claim 1, wherein: a ball valve (10) is arranged on the air inlet pipe (13), a single chip microcomputer (16) is arranged on the ball valve (10), and a pressure sensor (17) is arranged in the shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921092717.8U CN210344428U (en) | 2019-07-12 | 2019-07-12 | Natural gas anti-backfire safety ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921092717.8U CN210344428U (en) | 2019-07-12 | 2019-07-12 | Natural gas anti-backfire safety ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210344428U true CN210344428U (en) | 2020-04-17 |
Family
ID=70193733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921092717.8U Expired - Fee Related CN210344428U (en) | 2019-07-12 | 2019-07-12 | Natural gas anti-backfire safety ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210344428U (en) |
-
2019
- 2019-07-12 CN CN201921092717.8U patent/CN210344428U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200417 Termination date: 20210712 |
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| CF01 | Termination of patent right due to non-payment of annual fee |