CN210623720U - Explosion-proof valve for explosive dust environment - Google Patents
Explosion-proof valve for explosive dust environment Download PDFInfo
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- CN210623720U CN210623720U CN201921640479.XU CN201921640479U CN210623720U CN 210623720 U CN210623720 U CN 210623720U CN 201921640479 U CN201921640479 U CN 201921640479U CN 210623720 U CN210623720 U CN 210623720U
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Abstract
The utility model discloses a flame proof valve for explosive dust environment, which comprises a valve body, the left end intercommunication of valve body has the air intake to the right-hand member intercommunication of valve body has the air outlet, the inner chamber fixedly connected with of valve body cuts off the pipeline, the utility model relates to a flame proof valve technical field. This a flame proof valve for explosive dust environment, when exploding, the impact air current that is mixing the dust is gone into along the air intake, under the huge pressure, the returning face plate receives the impact and rotates right, make in the sealed stopper joint advances cuts off the pipeline, at first seal ring, seal under the cooperation of ring type seal circle and sealed hole, prevent that the explosion dust from flowing into the air outlet, after the air that is mixing the dust that the explosion produced gets into, through the wall of returning face plate, to both sides reposition of redundant personnel, let in the pressure release pipeline along the pressure release mouth, form the circulation and offset the impact force, can effectively reduce the impact that the flame proof valve received, the shock resistance of flame proof valve has been increased.
Description
Technical Field
The utility model relates to a flame proof valve technical field specifically is a flame proof valve for explosive dust environment.
Background
The dust explosion refers to that the combustible dust meets a heat source (open fire or high temperature) within the explosion limit range, the flame instantly spreads in the whole mixed dust space, the chemical reaction speed is very high, a large amount of heat is released at the same time, very high temperature and very high pressure are formed, the energy of the system is converted into mechanical energy and light and heat radiation, and the dust explosion has very strong destructive power, and is mostly in production and processing places accompanied with the generation of aluminum powder, zinc powder, aluminum processing grinding powder, various plastic powder, intermediates of organic synthetic drugs, wheat flour, sugar, wood dust, dye, bakelite ash, milk powder, tea powder, tobacco powder, coal dust, plant fiber dust and the like.
Most of existing protection means for dust explosion adopt explosion-proof valves for protection, but the existing explosion-proof valves have poor shock wave resistance when protection is carried out, so that the interior of the explosion-proof valves is easily damaged due to severe air flow impact generated by explosion, a good explosion-proof effect cannot be achieved, and dust cannot be effectively cut off.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides a flame proof valve for explosive dust environment has solved current flame proof valve when protecting, and the shock wave resistance ability is relatively poor, very easily because the violent air current that is produced by the explosion strikes, leads to the inside damage of flame proof valve, does not play a good explosion-proof effect to can not effectively cut off the problem of dust.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a flame proof valve for explosive dust environment, includes the valve body, the left end intercommunication of valve body has the air intake to the right-hand member intercommunication of valve body has the air outlet, the inner chamber fixedly connected with of valve body cuts off the pipeline, the surface of valve body is rotated and is connected with the dwang, the one end of dwang runs through the surface of valve body and extends to the inner chamber of valve body, the dwang is located the fixed surface of valve body inner chamber and is connected with the returning face plate, the left side fixedly connected with extension spring of returning face plate to the extension spring is kept away from the one end of returning face plate and the inner chamber fixed connection of valve body, the right side fixedly connected with of returning face plate and the sealing plug of cutting off the inner chamber.
Preferably, the upper side and the lower side of the surface of the valve body are fixedly connected with pressure relief blocks, a pressure relief pipeline is arranged in an inner cavity of each pressure relief block, a pressure spring valve is fixedly connected to the inner cavity of each pressure relief pipeline, a pressure relief opening is formed in the inner cavity of the valve body, and the inner cavity of each pressure relief opening is communicated with the inner cavity of each pressure relief block.
Preferably, the right side of the turnover plate is fixedly connected with an annular sealing ring, and the surface of the partition pipeline is provided with a sealing hole matched with the surface of the annular sealing ring.
Preferably, the surface of the valve body is fixedly connected with a locking block, a movable groove is formed in an inner cavity of the locking block, and a return spring is fixedly connected to the inner cavity of the movable groove.
Preferably, one end of the reset spring is fixedly connected with an arc-shaped sliding block, the surface of the rotating rod is fixedly connected with a locking plate, and the right side of the locking plate is fixedly connected with a locking pin.
Preferably, the surface of the locking pin is provided with a locking hole matched with the surface of the arc-shaped sliding block.
Advantageous effects
The utility model provides a flame proof valve for explosive dust environment. Compared with the prior art, the method has the following beneficial effects:
(1) the explosion-proof valve for the explosive dust environment is characterized in that the left end of the valve body is communicated with an air inlet, the right end of the valve body is communicated with an air outlet, the inner cavity of the valve body is fixedly connected with a partition pipeline, the surface of the valve body is rotatably connected with a rotating rod, one end of the rotating rod penetrates through the surface of the valve body and extends to the inner cavity of the valve body, the surface of the rotating rod, which is positioned in the inner cavity of the valve body, is fixedly connected with a turnover plate, the left side of the turnover plate is fixedly connected with a tension spring, one end, away from the turnover plate, of the tension spring is fixedly connected with the inner cavity of the valve body, the right side of the turnover plate is fixedly connected with a sealing plug matched with the inner cavity of the partition pipeline, the surface of the sealing plug is fixedly connected with a first sealing washer, the explosion-proof valve is sealed under the matching of the first sealing washer, the annular sealing ring and the sealing hole, explosion dust is prevented from flowing into the air outlet, air mixed with dust generated by explosion enters the air outlet, is separated to two sides through the partition of the turnover plate, and is introduced into the pressure release pipeline along the pressure release port, so that the impact force is counteracted circularly, the impact on the explosion-proof valve can be effectively reduced, and the impact resistance of the explosion-proof valve is improved.
(2) This a flame proof valve for explosive dust environment, be connected with the latch segment through the fixed surface at the valve body, the movable groove has been seted up to the inner chamber of latch segment, and the inner chamber fixedly connected with reset spring in movable groove, the fixed surface of valve body is connected with the latch segment, the movable groove has been seted up to the inner chamber of latch segment, and the inner chamber fixedly connected with reset spring in movable groove, when the dwang rotates, the dwang drives the locking plate and rotates, it is downthehole to make the arc slider pop out the locking of joint on the fitting pin, fix the bull stick, can carry on spacingly to the dwang, fix the sealing plug, make the sealing plug keep sealed with the wall pipeline always, after the explosion, pulling arc slider can take out the fitting pin.
Drawings
FIG. 1 is a sectional view of the structure of the present invention;
FIG. 2 is a front view of the structure of the present invention;
FIG. 3 is a front view of the flip plate structure of the present invention;
FIG. 4 is a side view of the present invention showing the structure of the partition pipe;
fig. 5 is a partially enlarged view of a portion a in fig. 2 according to the present invention.
In the figure: 1-valve body, 2-air inlet, 3-air outlet, 4-partition pipeline, 5-rotating rod, 6-turnover plate, 7-tension spring, 8-sealing plug, 9-first sealing washer, 10-pressure relief block, 11-pressure relief pipeline, 12-pressure spring valve, 13-pressure relief port, 14-annular sealing washer, 15-sealing hole, 16-locking block, 17-movable groove, 18-reset spring, 19-arc slide block, 20-locking plate, 21-locking pin and 22-locking hole.
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. 1-5, the present invention provides a technical solution: a flame-proof valve for explosive dust environment comprises a valve body 1, a locking block 16 is fixedly connected to the surface of the valve body 1, a movable groove 17 is formed in the inner cavity of the locking block 16, a reset spring 18 is fixedly connected to the inner cavity of the movable groove 17, an arc-shaped sliding block 19 is fixedly connected to one end of the reset spring 18, a locking plate 20 is fixedly connected to the surface of a rotating rod 5, a locking pin 21 is fixedly connected to the right side of the locking plate 20, a locking hole 22 matched with the surface of the arc-shaped sliding block 19 is formed in the surface of the locking pin 21, when the rotating rod 5 rotates, the rotating rod 5 drives the locking plate 20 to rotate, the arc-shaped sliding block 19 is ejected out to be clamped into the locking hole 22 in the locking pin 21, the rotating rod 5 is fixed, the rotating rod 5 can be limited, a sealing plug 8 is fixed, the sealing plug 8 is always kept sealed, the locking pin 21 can be taken out by pulling the arc-shaped sliding block 19, the upper side and the lower side of the surface of the valve body 1 are fixedly connected with pressure relief blocks 10, the inner cavity of each pressure relief block 10 is provided with a pressure relief pipeline 11, the inner cavity of each pressure relief pipeline 11 is fixedly connected with a pressure spring valve 12, a part of gas is discharged through the pressure spring valve 12 for pressure relief, the inner cavity of the valve body 1 is provided with a pressure relief opening 13, the inner cavity of the pressure relief opening 13 is communicated with the inner cavity of the pressure relief block 10, the left end of the valve body 1 is communicated with an air inlet 2, the right end of the valve body 1 is communicated with an air outlet 3, the inner cavity of the valve body 1 is fixedly connected with a partition pipeline 4, the surface of the valve body 1 is rotatably connected with a rotating rod 5, one end of the rotating rod 5 penetrates through the surface of the valve body 1 and, and the surface of the partition pipeline 4 is provided with a sealing hole 15 matched with the surface of the annular sealing ring 14, a first seal is formed by the sealing hole 15 and the annular sealing ring 14, the left side of the turnover plate 6 is fixedly connected with a tension spring 7, one end of the tension spring 7 far away from the turnover plate 6 is fixedly connected with the inner cavity of the valve body 1, the right side of the turnover plate 6 is fixedly connected with a sealing plug 8 matched with the inner cavity of the partition pipeline 4, the surface of the sealing plug 8 is fixedly connected with a first sealing washer 9, when explosion occurs, impact airflow mixed with dust is flushed along the air inlet 2, under the huge pressure, the turnover plate 6 is impacted and rotates rightwards, so that the sealing plug 8 is clamped into the partition pipeline 4 and is sealed under the matching of the first sealing washer 9, the annular sealing ring 14 and the sealing hole 15, the explosion dust is prevented from flowing into the air outlet 3, after, the gas is separated to two sides by the turning plate 6, and then is introduced into the pressure relief pipeline 11 along the pressure relief port 13 to form circulation to offset the impact force, so that the impact on the explosion-proof valve can be effectively reduced, and the impact resistance of the explosion-proof valve is improved.
When the explosion-proof valve works, air flows into the valve body 1 along the air inlet 2 and flows out along the partition pipeline 4 and the air outlet 3, when explosion occurs, air flow rushes in along the air inlet 2, under huge pressure, the turnover plate 6 pulls the tension spring 7 to drive the rotating rod 5 to rotate rightwards, so that the sealing plug 8 is clamped into the partition pipeline 4 and is sealed under the matching of the first sealing washer 9, the annular sealing washer 14 and the sealing hole 15, after dust-mixed air generated by explosion enters, the air is divided towards two sides through the partition of the turnover plate 6 and is led into the pressure relief pipeline 11 along the pressure relief opening 13 to form cyclic offset impact force, and part of air can be discharged out for pressure reduction through the pressure spring valve 12, when the rotating rod 5 rotates, the rotating rod 5 drives the locking plate 20 to rotate, the locking plate 20 drives the locking pin 21 to be clamped into the locking block 16, the arc-shaped slide block 19 is extruded to compress the return spring 18 to, then the reset spring 18 drives the arc-shaped slide block 19 to eject and clamp into the locking hole 22 on the locking pin 21, so as to fix the rotating rod 5 and fix the sealing plug 8.
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 (6)
1. The utility model provides a flame proof valve for explosive dust environment, includes valve body (1), the left end intercommunication of valve body (1) has air intake (2) to the right-hand member intercommunication of valve body (1) has air outlet (3), its characterized in that: the inner chamber fixedly connected with of valve body (1) cuts off pipeline (4), the surperficial rotation of valve body (1) is connected with dwang (5), the one end of dwang (5) runs through the surface of valve body (1) and extends to the inner chamber of valve body (1), dwang (5) are located fixed surface of valve body (1) inner chamber and are connected with returning face plate (6), the left side fixedly connected with extension spring (7) of returning face plate (6) to the inner chamber fixed connection of the one end of returning face plate (6) and valve body (1) is kept away from in extension spring (7), the right side fixedly connected with of returning face plate (6) and sealing plug (8) of the inner chamber adaptation that cuts off pipeline (4), the fixed surface of sealing plug (8) are connected with first seal ring (9).
2. The explosion-proof valve for explosive dust environment according to claim 1, characterized in that: the upper side and the lower side of the surface of the valve body (1) are fixedly connected with pressure relief blocks (10), a pressure relief pipeline (11) is arranged in an inner cavity of each pressure relief block (10), a pressure spring valve (12) is fixedly connected to the inner cavity of each pressure relief pipeline (11), a pressure relief opening (13) is arranged in the inner cavity of the valve body (1), and the inner cavity of each pressure relief opening (13) is communicated with the inner cavity of each pressure relief block (10).
3. The explosion-proof valve for explosive dust environment according to claim 1, characterized in that: the right side of the turnover plate (6) is fixedly connected with an annular sealing ring (14), and the surface of the partition pipeline (4) is provided with a sealing hole (15) matched with the surface of the annular sealing ring (14).
4. The explosion-proof valve for explosive dust environment according to claim 1, characterized in that: the surface of the valve body (1) is fixedly connected with a locking block (16), a movable groove (17) is formed in an inner cavity of the locking block (16), and a return spring (18) is fixedly connected to the inner cavity of the movable groove (17).
5. The explosion-proof valve for explosive dust environment according to claim 4, characterized in that: one end fixedly connected with arc slider (19) of reset spring (18), the fixed surface of dwang (5) is connected with locking plate (20), the right side fixedly connected with fitting pin (21) of locking plate (20).
6. The explosion-proof valve for explosive dust environment according to claim 5, characterized in that: the surface of the locking pin (21) is provided with a locking hole (22) matched with the surface of the arc-shaped slide block (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921640479.XU CN210623720U (en) | 2019-09-27 | 2019-09-27 | Explosion-proof valve for explosive dust environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921640479.XU CN210623720U (en) | 2019-09-27 | 2019-09-27 | Explosion-proof valve for explosive dust environment |
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| Publication Number | Publication Date |
|---|---|
| CN210623720U true CN210623720U (en) | 2020-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921640479.XU Active CN210623720U (en) | 2019-09-27 | 2019-09-27 | Explosion-proof valve for explosive dust environment |
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| CN (1) | CN210623720U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112957638A (en) * | 2021-03-22 | 2021-06-15 | 江苏复森特种阀门有限公司 | Fire arrester with changeable structure |
-
2019
- 2019-09-27 CN CN201921640479.XU patent/CN210623720U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112957638A (en) * | 2021-03-22 | 2021-06-15 | 江苏复森特种阀门有限公司 | Fire arrester with changeable structure |
| CN112957638B (en) * | 2021-03-22 | 2023-02-21 | 江苏复森特种阀门有限公司 | Fire arrester with changeable structure |
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