CN211117795U - One-way explosion-proof valve for dust removal pipeline - Google Patents
One-way explosion-proof valve for dust removal pipeline Download PDFInfo
- Publication number
- CN211117795U CN211117795U CN201921859785.2U CN201921859785U CN211117795U CN 211117795 U CN211117795 U CN 211117795U CN 201921859785 U CN201921859785 U CN 201921859785U CN 211117795 U CN211117795 U CN 211117795U
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- valve
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- dust removal
- clack
- explosion
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- 239000000428 dust Substances 0.000 title claims abstract description 40
- 230000008676 import Effects 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 3
- 238000004880 explosion Methods 0.000 abstract description 20
- 230000035939 shock Effects 0.000 abstract description 10
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000002955 isolation Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 15
- 239000000463 material Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
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Abstract
The utility model discloses a one-way flame-proof valve for a dust removal pipeline in the technical field of dust removal, which comprises a one-way flame-proof valve for a dust removal pipeline, a valve casing, a valve clack, a proximity switch and a latch; the both ends of valve casing are fixed with inlet flange and outlet flange respectively, the valve clack sets up in the inner chamber of valve casing, and the top of valve clack is fixed with the axis of rotation, and the axis of rotation rotates with the valve body to be connected, and one end stretches out valve casing and vertical fixation has the lock pole, and the latch corresponds with proximity switch to be connected, the utility model discloses a unidirectional flame proof valve fixed mounting is in dust collecting equipment's admission line, when downstream dust collecting equipment explodes, can cut off the transmission line rapidly, with the explosion isolation in certain region, the shock wave and the flame that avoid the explosion to produce pass through the pipeline and propagate toward dust collecting equipment's upper reaches, prevent to produce the secondary explosion for explosion loss restriction is in controllable within range, the safety of effectual protection personnel and.
Description
Technical Field
The utility model relates to a dust removal technical field specifically is a dust removal is one-way flame proof valve for pipeline.
Background
The filter cartridge deduster is composed of a filter cartridge as a filter element or adopts pulse blowing dedusting equipment, and consists of an air inlet pipe, an exhaust pipe, a box body, an ash bucket, an ash cleaning device, a flow guide device, an airflow distribution plate, a filter cartridge and an electric control device, and is similar to an air box pulse bag dedusting structure.
After the dust-containing gas enters the dust hopper of the dust remover, a part of coarse particles in the gas flow are settled in the dust hopper under the action of dynamic and inertial force due to the sudden expansion of the gas flow section and the action of the gas flow distribution plate; after dust particles with fine particle size and small density enter the dust filtering chamber, the dust is deposited on the surface of the filter material through the combined effects of Brown diffusion, sieving and the like, and the purified gas enters the gas purifying chamber and is discharged by the fan through the exhaust pipe.
A large amount of filtered dust is accumulated in the dust remover, and the dust is easy to cause dust explosion, but the dust inlet pipeline on most of the existing dust removing equipment is temporarily provided with no explosion isolating device in the transmission process, so that once the dust is exploded, the explosion shock wave and the propagation of flame cannot be isolated; therefore, there is a need for a technique for blocking the propagation of shock waves and flames generated by explosion to the upstream of the dust removing device through the pipe, thereby preventing the generation of secondary explosion and protecting the safety of personnel and equipment.
Based on this, the utility model designs a dust removal is one-way flame proof valve for pipeline to solve above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a dust removal is one-way flame proof valve for pipeline to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a one-way explosion-proof valve for a dust removal pipeline comprises a valve shell, a valve clack, a proximity switch and a latch;
an inlet flange and an outlet flange are respectively fixed at two ends of the valve shell, the inner side end of the inlet flange extends into an inner cavity of the valve shell, and the end face of the inlet flange is obliquely arranged;
the valve clack is arranged in an inner cavity of the valve casing, one side surface of the valve clack is in contact with the inner side end face of the inlet flange, a rotating shaft is fixed at the top end of the valve clack, two ends of the rotating shaft are rotatably connected with the upper side wall of the valve body through bearings, and one end of the rotating shaft extends out of the valve casing and is vertically fixed with a locking rod;
a switch mounting plate is fixed at the bottom of the outer side of the valve shell, and the proximity switch is fixedly mounted on the switch mounting plate;
the bottom position that corresponds the locking pole on the lateral wall of valve casing is fixed with the support frame, and latch fixed mounting is on the support frame, and the bottom position that corresponds the locking pole on the latch is provided with the locking lever, and the latch corresponds with proximity switch and is connected.
Preferably, the valve casing includes the valve body, and the top and both ends of valve body are the opening form, import flange and outlet flange are fixed respectively and are set up with the both ends of valve body, the opening at both ends is convenient for the circulation of medium and gas and is passed through the valve body, the flange at valve body both ends plays the effect of connecting, make one-way flame proof valve can be connected to by practical application in the concrete device, and the top of valve body rotates and is connected with the valve gap, be convenient for inspect the condition of each inside part of cavity, in time maintain, evenly be provided with a plurality of fixed orificess on the valve gap, the fixed orifices is used for fixing the valve gap on the valve body, and keep away from on the top surface.
Preferably, the bottom surface of the valve cover is fixed with an inclined baffle, the bottom end of the baffle penetrates through the top opening of the valve body and extends into the inner cavity of the valve body, and is fixed with a limiting plate, so that the valve clack has a blocking effect, the opening angle of the valve clack is controlled to be 20-30 degrees, and when the one-way explosion-proof valve works normally, the valve clack is prevented from being opened to an overlarge extent to influence the medium passing amount.
Preferably, the end of the rotating shaft, which is provided with the locking rod, is further fixed with a counterweight swing arm, and the top end of the counterweight swing arm is fixed with a counterweight.
Preferably, keep away from one side surface symmetry and the vertical fixation of import flange on the valve clack and have the backup pad, the backup pad plays the effect of consolidating the valve clack, set up perpendicularly and make the reinforcement effect better, be fixed with the guide plate parallel with the valve clack between two backup pads, parallel arrangement's guide plate has increased the active area of explosion shock wave, make the valve clack better with the sealed effect of import flange, and be fixed with the connecting plate between guide plate and the valve clack, the connecting plate not only has the connection of consolidating guide plate and valve clack, the effect of water conservancy diversion has also been played simultaneously, the effect of explosion shock wave has been increased.
Preferably, the rotating shaft is symmetrically fixed with connecting arms, the connecting arms are fixedly connected with the valve clack, the bottom end of each connecting arm is fixed with a compression spring through a screw, and the other end of each compression spring is in contact with the valve.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a unidirectional flame proof valve fixed mounting is in dust collecting equipment's admission line, when downstream dust collecting equipment explodes, can cut off transmission line rapidly, the explosion source that cuts off dust collecting equipment passes through the import pipeline and is connected between the front end auxiliary assembly, keep apart the explosion in certain region, the shock wave and the flame that avoid the explosion to produce pass through the pipeline and propagate toward dust collecting equipment's upper reaches, prevent to produce the secondary explosion, make the loss of explosion restriction in controllable within range, the safety of effectual protection personnel and upstream equipment.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a side view of the present invention;
fig. 3 is a left side view of the present invention;
FIG. 4 is a right side view of the present invention;
fig. 5 is a top view of the present invention;
fig. 6 is a sectional view of the utility model a-a.
In the drawings, the components represented by the respective reference numerals are listed below:
1-valve casing, 11-valve body, 111-inlet flange, 112-outlet flange, 12-valve cover, 121-baffle, 122-handle, 2-valve flap, 21-support plate, 3-proximity switch, 4-latch, 41-support frame, 42-lock rod, 5-rotating shaft, 51-locking rod, 52-bearing and 53-balance gravity hammer.
Detailed Description
The technical solution 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, but not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
Referring to the drawings, the utility model provides a technical scheme: a unidirectional explosion-proof valve for a dust removal pipeline comprises a valve shell 1, a valve clack 2, a proximity switch 3 and a latch 4;
an inlet flange 111 and an outlet flange 112 are respectively fixed at two ends of the valve casing 1, the inner side end of the inlet flange 111 extends into the inner cavity of the valve casing 1, and the end faces are obliquely arranged;
the valve clack 2 is arranged in an inner cavity of the valve casing 1, one side surface of the valve clack 2 is in contact with the inner side end face of the inlet flange 111, a rotating shaft 5 is fixed at the top end of the valve clack 2, two ends of the rotating shaft 5 are rotatably connected with the upper side wall of the valve body 11 through bearings 52, and one end of the rotating shaft extends out of the valve casing 1 and is vertically fixed with a locking rod 51;
a switch mounting plate is fixed at the bottom of the outer side of the valve shell 1, and the proximity switch 3 is fixedly mounted on the switch mounting plate;
a supporting frame 41 is fixed on the outer side wall of the valve housing 1 corresponding to the bottom position of the locking rod 51, the latch 4 is fixedly installed on the supporting frame 41, a lock rod 42 is arranged on the latch 4 corresponding to the bottom position of the locking rod 51, and the latch 4 is correspondingly connected with the proximity switch 3.
The bottom surface of valve gap 12 is fixed with inclined baffle 121, and the bottom of baffle 121 passes the top surface opening of valve body 11 and stretches into 11 inner chambers of valve body to be fixed with the limiting plate, have the effect that blocks to valve clack 2, have the effect of control valve clack 2 opening angle, control the angle that valve clack 2 opened at 20 ~ 30, when one-way flame proof valve normally works, prevent that valve clack 2 opening range is too big, influence the volume that the medium passes through.
A counter weight swing arm is further fixed to one end of the rotation shaft 5, at which the lock lever 51 is provided, and a counter weight 53 is fixed to a top end of the counter weight swing arm.
Keep away from one side surface symmetry and the vertical fixation of import flange 111 on valve clack 2 and have backup pad 21, backup pad 21 plays the effect of consolidating valve clack 2, it is better to set up perpendicularly to make the reinforcing effect, be fixed with the guide plate parallel with valve clack 2 between two backup pads 21, parallel arrangement's guide plate has increased the active area of explosion shock wave, make valve clack 2 and import flange 111's sealed effect better, and be fixed with the connecting plate between guide plate and the valve clack 2, the connecting plate not only has the connection of consolidating guide plate and valve clack 2, the effect of water conservancy diversion has also been played simultaneously, the effect of explosion shock wave has been increased.
The rotating shaft 5 is symmetrically fixed with connecting arms, the connecting arms are fixedly connected with the valve clack 2, the bottom end of each connecting arm is fixed with a compression spring through a screw, and the other end of each compression spring is in contact with the valve.
The working principle of the embodiment is as follows: the one-way explosion-proof valve is fixedly arranged in an air inlet pipeline of the dust removing equipment, and when the one-way explosion-proof valve is in a non-working state or an explosion-proof state, the inner surface of the valve clack 2 is attached to the end face of one end, located in the cavity, of the inlet flange 111 to form a mechanical seal;
the end face of the inlet flange 111, which is positioned in the cavity, is an inclined plane, so that the valve clack 2 is attached to one end of the inlet flange 111, which is positioned in the cavity, more closely, the inclined plane of the inlet flange 111 not only facilitates the attachment of the valve clack 2 to the inlet flange 111, but also enables the valve clack 2 to be attached to the inlet flange 111 more closely by means of the gravity of the valve clack 2;
the latch 4 is connected with the proximity switch 3, the proximity switch 3 controls the extension of the lock rod 42 on the latch 4 to lock the valve clack 2, and the lock rod 42 of the latch 4 can be retracted through manual reset; in practical application, the latch 4 is interlocked with the fan, when the fan is started, the lock rod 42 of the latch 4 retracts, and the valve clack 2 of the explosion-proof valve is opened to return to normal operation;
when the explosion-proof valve normally works, the one-way explosion-proof valve is opened under the action of the airflow of the fan, and a medium enters from the inlet flange 111 and is discharged from the outlet flange 112; when the fan starts to work, the valve clack 2 is also in an opening state, and the valve clack 2 acts under the action of the fan in the whole process;
when exploding, valve clack 2 is closed by the shock wave effect, locking pole 51 is located latch 4 department, proximity switch 3 senses valve clack 2 and reachs the assigned position and signals this moment, control latch 4's locking pole 42 pops out, thereby block locking pole 51 back motion and play the effect of pinning valve clack 2, the negative pressure that produces this moment can't open valve clack 2 once more, secondary explosion's production has been avoided, prevent that the shock wave and the flame of explosion from getting back to the pipe-line system again, the personnel safety and the equipment safety in flame proof valve upper reaches have been guaranteed.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended to be illustrative only. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (6)
1. The utility model provides a dust removal is one-way flame proof valve for pipeline, includes valve casing (1), valve clack (2), proximity switch (3) and latch (4), its characterized in that:
an inlet flange (111) and an outlet flange (112) are respectively fixed at two ends of the valve casing (1), the inner side end of the inlet flange (111) extends into an inner cavity of the valve casing (1), and the end faces are obliquely arranged;
the valve clack (2) is arranged in an inner cavity of the valve casing (1), one side surface of the valve clack (2) is in contact with the inner side end face of the inlet flange (111), a rotating shaft (5) is fixed at the top end of the valve clack (2), two ends of the rotating shaft (5) are rotatably connected with the upper side wall of the valve body (11) through bearings (52), and one end of the rotating shaft extends out of the valve casing (1) and is vertically fixed with a locking rod (51);
a switch mounting plate is fixed at the bottom of the outer side of the valve casing (1), and the proximity switch (3) is fixedly mounted on the switch mounting plate;
the bottom position that corresponds locking pole (51) on the lateral wall of valve casing (1) is fixed with support frame (41), and latch (4) fixed mounting is on support frame (41), the bottom position that corresponds locking pole (51) on latch (4) is provided with locking lever (42), and latch (4) correspond with proximity switch (3) and be connected.
2. The one-way explosion-proof valve for the dust removal pipeline as claimed in claim 1, which is characterized in that: valve casing (1) includes valve body (11), and the top and the both ends of valve body (11) are the opening form, and import flange (111) and outlet flange (112) are fixed respectively and are set up with the both ends of valve body (11), and the top of valve body (11) rotates and is connected with valve gap (12), evenly be provided with a plurality of fixed orificess on valve gap (12), and keep away from the one side of rotating the end on the top surface and be provided with handle (122).
3. The one-way explosion-proof valve for the dust removal pipeline as claimed in claim 2, wherein: an inclined baffle plate (121) is fixed on the bottom surface of the valve cover (12), the bottom end of the baffle plate (121) penetrates through the top opening of the valve body (11) to extend into the inner cavity of the valve body (11), and a limiting plate is fixed on the bottom end of the baffle plate.
4. The one-way explosion-proof valve for the dust removal pipeline as claimed in claim 1, which is characterized in that: and a balance weight swing arm is further fixed at one end of the rotating shaft (5) provided with the locking rod (51), and a balance gravity weight (53) is fixed at the top end of the balance weight swing arm.
5. The one-way explosion-proof valve for the dust removal pipeline as claimed in claim 1, which is characterized in that: one side surface of the valve clack (2) far away from the inlet flange (111) is symmetrically and vertically fixed with support plates (21), a guide plate parallel to the valve clack (2) is fixed between the two support plates (21), and a connecting plate is fixed between the guide plate and the valve clack (2).
6. The one-way explosion-proof valve for the dust removal pipeline as claimed in claim 1, which is characterized in that: the valve is characterized in that connecting arms are symmetrically fixed on the rotating shaft (5) and fixedly connected with the valve clack (2), a compression spring is fixed at the bottom end of each connecting arm through a screw, and the other end of each compression spring is in contact with the valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921859785.2U CN211117795U (en) | 2019-10-31 | 2019-10-31 | One-way explosion-proof valve for dust removal pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921859785.2U CN211117795U (en) | 2019-10-31 | 2019-10-31 | One-way explosion-proof valve for dust removal pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211117795U true CN211117795U (en) | 2020-07-28 |
Family
ID=71701297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921859785.2U Expired - Fee Related CN211117795U (en) | 2019-10-31 | 2019-10-31 | One-way explosion-proof valve for dust removal pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211117795U (en) |
-
2019
- 2019-10-31 CN CN201921859785.2U patent/CN211117795U/en not_active Expired - Fee Related
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| 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: 20200728 |