CN111336304B - Submerged electromagnetic pulse valve - Google Patents
Submerged electromagnetic pulse valve Download PDFInfo
- Publication number
- CN111336304B CN111336304B CN202010287268.3A CN202010287268A CN111336304B CN 111336304 B CN111336304 B CN 111336304B CN 202010287268 A CN202010287268 A CN 202010287268A CN 111336304 B CN111336304 B CN 111336304B
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- main part
- air chamber
- positioning seat
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- 238000007789 sealing Methods 0.000 claims abstract description 9
- 230000006835 compression Effects 0.000 claims description 13
- 238000007906 compression Methods 0.000 claims description 13
- 238000006073 displacement reaction Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 21
- 238000007664 blowing Methods 0.000 abstract description 17
- 238000009434 installation Methods 0.000 abstract description 16
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 13
- 238000002347 injection Methods 0.000 description 12
- 239000007924 injection Substances 0.000 description 12
- 239000012528 membrane Substances 0.000 description 9
- 239000012530 fluid Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/029—Electromagnetically actuated valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/365—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor the fluid acting on a diaphragm
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The invention discloses a submerged electromagnetic pulse valve, which comprises a valve main part, wherein a main diaphragm is arranged in the middle of the bottom of the valve main part, an output port is arranged under the main diaphragm, a plurality of mounting holes are uniformly distributed on the periphery of the bottom of the valve main part, a circle of mounting wall is arranged at the bottom of the valve main part, a positioning seat is sleeved outside the mounting wall and is in sealing connection with the mounting wall, the output port is arranged at the lower end of the positioning seat, the edge around the main diaphragm is fixed between the valve main part and the positioning seat, and a compressed air inlet is arranged on the positioning seat and is positioned below the edge of the main diaphragm; the compressed air inlet is not lower than the port of the output port. The invention has large output caliber, small gas flow passage resistance, large blowing quantity and small installation size, is suitable for ultra-long filter bag ash removal without increasing the filter distance, is suitable for the matched requirement of the development of the bag type dust removal technology, and provides equipment support for treating the atmospheric pollution.
Description
Technical Field
The invention relates to a submerged electromagnetic pulse valve, and belongs to the field of electromagnetic pulse valves for pulse blowing bag type dust collectors.
Background
As shown in fig. 1, the electromagnetic pulse valve 1 is a generating device of a dust removing air source of a pulse injection bag type dust remover, and forms a dust removing injection system with a pulse injection controller, an air dividing box 2 is sleeved outside the electromagnetic pulse valve 1, the electromagnetic pulse valve 1 is connected with one end of a connecting pipe, the other end of the connecting pipe passes through the air dividing box 2 and is connected with one end of an injection pipe 4, the other end of the injection pipe 4 passes through a dust remover box 6, the injection pipe 4 is connected with the dust remover box 6 through a box wall connector 7, a plurality of nozzles 5 are arranged at the bottom of the injection pipe 4, a filter bag 3 is respectively arranged under each nozzle 5, the left arrow in fig. 1 is the entering direction of dust-containing air, and the left arrow is the exiting direction of purified air. The electromagnetic pulse valve is controlled by an electric signal output by the pulse injection controller, compressed gas is injected to clean the filter bag, dust collected on the dust facing surface of the filter bag is stripped, the dust remover operates within a set resistance range, and particles in the exhaust gas reach the standard of environmental protection.
The working principle of the electromagnetic pulse valve is as shown in fig. 3: the main diaphragm 101 divides the air chamber of the electromagnetic pulse valve into a first front air chamber 102 and a first rear air chamber 103, the sub-diaphragm 104 divides the small air chamber into a second front air chamber 105 and a second rear air chamber 106, and when the electromagnetic pulse valve is connected with the air dividing box (air bag) 2, compressed air (the direction of the arrow in fig. 3 is the direction of the compressed air) enters the first rear air chamber 103 and the second rear air chamber 106 through the first orifice 107 and the second orifice 108, respectively, and both the second air release hole 111 and the first air release hole 112 are blocked. The pressure of the first rear air chamber 103 brings the main diaphragm 101 into close proximity with the output port 109, and the solenoid valve is in the "off" state.
The electrical signal of the pulse blowing controller causes the armature 110 of the electromagnetic pulse valve to move, the second bleed hole 111 to be opened, the second rear air chamber 106 to be rapidly depressurized, the auxiliary diaphragm 104 to move backward, the first bleed hole 112 to be opened, the first rear air chamber 103 to be rapidly depressurized, the pressure of the first front air chamber 102 to move backward the main diaphragm 101, the compressed air to be blown through the output port 109, and the electromagnetic pulse valve to be in an "open" state as shown in fig. 4.
The electrical signal of the pulse blowing controller disappears, the armature 110 of the electromagnetic pulse valve is reset, the second air release hole 111 is blocked, the auxiliary diaphragm 104 moves forward, the first air release hole 112 is blocked, the pressure of the first rear air chamber 103 rises, the main diaphragm 101 is tightly attached to the output port 109, and the electromagnetic pulse valve is in a closed state as shown in fig. 3.
The structure of the conventional submerged electromagnetic pulse valve is shown in fig. 3 and 4, and mainly comprises a valve cover 119, a valve body 118 and a main diaphragm 101. The valve cover 119, the main diaphragm 101, and the valve body 118 are fixed by a first bolt 116, and by a flange on the valve body 118, and by a second bolt 117, are fixed to the gas distribution tank (gas bag) 2, and the output port 109 is connected to the valve body 118. The main diaphragm 101 is connected with the valve body 118 through a third compression spring 115, the auxiliary diaphragm 104 is connected with the valve body 118 through a second compression spring 114, and a first compression spring 113 is sleeved outside the armature 110.
The existing submerged electromagnetic pulse valve adopts a shape of a front basin and a rear basin formed by a flat membrane under the pressure action of a front air chamber and a rear air chamber, so that the submerged electromagnetic pulse valve is always stressed, and a considerable area of the submerged electromagnetic pulse valve is used for fixing (shown as L in figure 9). When the existing submerged pulse valve is opened, compressed gas enters the output port through two 90 degrees (as shown in fig. 11), so that the fluid resistance is increased.
The submerged electromagnetic pulse valve has the characteristics of low air source pressure and small valve body resistance compared with a right-angle electromagnetic pulse valve, and is suitable for ash removal of small and medium-sized bag-type dust collectors.
With the need of atmospheric pollution control, the bag filter is developed to a large-scale, long bag and ultra-low emission direction. The pulse blowing bag type dust collector adopts the installation dimension of the pulse valve to be large and the blowing quantity to be small, so that the development of the dust collector is restricted to a certain extent. In order to adapt to the treatment of atmospheric pollution, the prior art can not meet the ash removal requirements of large and medium-sized bag type dust collectors. The large-sized bag type dust collector needs to be provided with longer and more filter bags, the number of the filter bags arranged in each row is increased from 16 to 18-20, the length is increased from 6 meters to 8-10 meters, the treatment air quantity is increased by increasing the filtering area, and the gas purifying quantity is enlarged. Therefore, a pulse valve with larger injection quantity needs to be arranged to meet the ash removal requirement of the filter bag, but the output caliber of the pulse valve needs to be enlarged when the injection quantity is increased, and the appearance and the installation size of the pulse valve are also necessarily enlarged. However, the centers of the filter bags in the dust remover are necessarily on the same straight line with the central line of the pulse valve, and the installation size of the pulse valve determines the center distance between the filter bags. As shown in fig. 2, the valve distance D between the centerlines of the adjacent solenoid valves 1 is the same, and the bag distance D between the filter bags 3 connected to the lower surface of the injection pipe 4 of the adjacent solenoid valves 1 is the same. The increase of the outline dimension of the pulse valve increases the distance between the filter bags, and increases the installation area of the dust collector and the steel consumption of the equipment, namely the occupied area of the bag type dust collector is enlarged and the manufacturing cost is increased.
Disclosure of Invention
The invention aims to solve the technical problems that: how to enlarge the blowing caliber while reducing the installation size of the submerged electromagnetic pulse valve.
In order to solve the technical problems, the technical scheme of the invention is that the submerged electromagnetic pulse valve comprises a valve main part, a main diaphragm is arranged in the middle of the bottom of the valve main part, an output port is arranged right below the main diaphragm, a first front air chamber is arranged between the lower surface of the main diaphragm and the output port, a plurality of compressed air inlets communicated with a gas distribution box are arranged on the inner wall of the first front air chamber, a first rear air chamber is arranged on the upper surface of the main diaphragm, a plurality of first throttling holes communicated with the gas distribution box are arranged on the inner wall of the first rear air chamber, the first rear air chamber is communicated with a second front air chamber, a subsidiary diaphragm is arranged on the upper surface of the second front air chamber, a first air release hole is arranged on one side of the subsidiary diaphragm, the second front air chamber is connected with the second rear air chamber through a second throttling hole, armatures are arranged above the second rear air chamber and the second air holes and are arranged in the electromagnetic throttling holes, the electromagnetic pilot valve is connected with the top of the valve main part, the electromagnetic pulse valve is characterized in that a plurality of first throttling holes are uniformly distributed on the inner wall of the main air chamber, a plurality of air guide holes are uniformly distributed on the periphery of the main valve seat, a plurality of air guide seats are arranged on the periphery of the main valve seat are fixedly arranged on the periphery of the main valve seat, and the periphery of the main seat is provided with the periphery of the air guide seat, and the air guide seat is positioned on the periphery of the main seat is positioned on the periphery of the air seat, and the air guide seat is positioned on the periphery of the air seat is positioned on the periphery; the compressed air inlet is not lower than the port of the output port.
Preferably, the first orifice penetrates the positioning seat and the valve main part, and the first orifice is arranged above the edge of the main diaphragm.
Preferably, a limiting seat is arranged on the inner wall of the bottom of the valve main part, the limiting seat is arranged in the mounting wall, and the limiting seat is arranged right above the main diaphragm.
Preferably, the moving distance between the lower end of the limiting seat and the upper end of the output port of the main diaphragm is not smaller than one fourth of the inner diameter of the output port.
Preferably, the longitudinal section of the positioning seat above the compressed air inlet is of a Z-shaped structure; the part of the upper section of the positioning seat with the Z-shaped structure comprises a cylinder structure, a first boss extending outwards is arranged at the upper end edge of the cylinder structure, and a second boss extending inwards is arranged at the lower end edge of the cylinder structure.
Preferably, the lower end of the mounting wall presses against the second boss, and the lower end surface of the first boss is lower than the lower end surface of the bottom periphery of the valve main part; the vertical distance between the upper end face of the first boss and the upper end face of the second boss is not greater than the vertical distance between the lower end face of the mounting wall and the lower end face of the valve main part, which is located right above the first boss, on the bottom face of the valve main part.
Preferably, the maximum outer diameter of the cylinder structure is matched with the inner diameter of the opening of the gas distribution box; the outer diameter of the first boss is larger than the inner diameter of the opening of the gas distribution box; the positioning seat is arranged between the plurality of mounting holes and the circle of mounting wall, the lower end of the valve main part is provided with a circle of groove, and the groove is connected with the upper end of the positioning seat in an embedded manner.
Preferably, the compressed air inlet is an opening arranged along the flow direction of the compressed air in the air distribution box.
Preferably, the inner wall of the lower part of the mounting wall is an inclined plane; the wall thickness of the lower part of the mounting wall is gradually thinned downwards.
Preferably, the top of the main diaphragm is connected with the inner wall of the valve main part above the main diaphragm through a third compression spring; the top of the auxiliary diaphragm is connected with the inner wall of the valve main part above the auxiliary diaphragm through a second compression spring; the armature is connected with the electromagnetic pilot valve through a first compression spring; the second orifice is arranged on the auxiliary diaphragm.
The invention has large output caliber, small gas flow passage resistance, large blowing quantity and small installation size, is suitable for ultra-long filter bag ash removal without increasing the filter distance, is suitable for the matched requirement of the development of the bag type dust removal technology, and provides equipment support for treating the atmospheric pollution.
Compared with the prior art, the invention has the following advantages:
(1) The structure of the existing submerged electromagnetic pulse valve mainly comprises a valve cover, a valve body and a main diaphragm, wherein the valve cover, the main diaphragm and the valve body are fixed by a first bolt, a flange on the valve body is fixed with a gas distribution box (gas bag) by a second bolt, and an output port is connected with the valve body.
The invention has the advantages that the valve main part and the main diaphragm are connected with the positioning sleeve, the original structure is simplified, the fasteners are reduced, and more importantly, the volume of the valve is reduced.
(2) The existing submerged electromagnetic pulse valve adopts a shape of a front basin and a rear basin which are formed by adopting a flat membrane under the pressure action of a front air chamber and a rear air chamber, so that the submerged electromagnetic pulse valve is always stressed, and a quite large area of the submerged electromagnetic pulse valve is used for fixing. When the existing submerged pulse valve is opened, compressed gas enters the output port through two 90-degree corners, so that the fluid resistance is increased.
The invention adopts the basin-shaped diaphragm (namely the main diaphragm) with the O-shaped sealing ring, thereby reducing the fixed area. And when the valve is in a closed state, the basin-shaped diaphragm is not in a stressed state. When the valve is opened, the opening degree is large, and the injection quantity is increased.
When the pulse valve is opened, compressed gas enters the output port and passes through only one 90-degree corner, so that the fluid resistance is reduced, and the blowing quantity is increased. Meanwhile, the invention enlarges the flow area of the compressed gas and improves the blowing performance of the pulse valve.
(3) The existing submerged electromagnetic pulse valve takes 76 mm of the diameter of an output port as an example, the external dimension is 230 mm, and the blowing quantity is 1.8L/ms.
The output caliber of the submerged electromagnetic pulse valve is 102 mm. The outline dimension is 215 mm, and the blowing amount is 3L/ms. The external dimension is reduced by 6.5%, and the blowing quantity is increased by 66%. The technical performance advantage is very obvious.
(4) In the existing submerged electromagnetic pulse valve, the moving distance of the main diaphragm is one fifth of the inner diameter of the output port.
The moving distance of the main diaphragm can reach one fourth of the inner diameter of the output port.
Drawings
FIG. 1 is a schematic structural view of a pulse blowing bag filter;
FIG. 2 is a layout diagram of the electromagnetic pulse valve and the filter bag;
FIG. 3 is a block diagram of a prior submerged solenoid valve (closed);
FIG. 4 is a block diagram of a prior submerged solenoid valve (open);
FIG. 5 is a schematic diagram of a submerged solenoid valve according to the present invention;
FIG. 6 is a schematic diagram of a submerged solenoid valve according to the present invention;
FIG. 7a is a diagram of a prior submerged solenoid valve and a distribution box installation;
FIG. 7b is a top view of FIG. 7 a;
FIG. 8a is a diagram showing the installation of a submerged electromagnetic pulse valve and a gas distribution box;
FIG. 8b is a top view of FIG. 8 a;
FIG. 9 is a diagram of a prior submerged solenoid valve diaphragm installation;
FIG. 10 is a diagram of the diaphragm installation of the submerged electromagnetic pulse valve provided by the invention;
FIG. 11 is a diagram of an outlet layout of a prior submerged solenoid valve;
FIG. 12 is a diagram of the layout of the output ports of the submerged electromagnetic pulse valve;
FIG. 13 is a diagram showing the installation of a submerged electromagnetic pulse valve (square gas distribution box);
Fig. 14 is a schematic diagram of the installation of a submerged electromagnetic pulse valve (circular gas distribution box) according to the present invention.
Detailed Description
In order to make the invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Example 1
The invention relates to a submerged electromagnetic pulse valve, as shown in figures 5, 6, 8, 10 and 12, which comprises a valve main part 126, wherein a main membrane 101 is arranged in the middle of the bottom of the valve main part 126, an output port 109 is arranged right below the main membrane 101, the top of the main membrane 101 is connected with the inner wall of the valve main part 126 above the main membrane 101 through a third compression spring 115, a first front air chamber 102 is arranged between the lower surface of the main membrane 101 and the output port 109, a plurality of compressed air inlets communicated with an air distribution box 2 are arranged on the inner wall of the first front air chamber 102, a first rear air chamber 103 is arranged above the main membrane 101, the inner wall of the first back air chamber 103 is provided with a plurality of first throttling holes 107 communicated with the air distribution box 2, the first back air chamber 103 is communicated with the second front air chamber 105, the upper surface of the second front air chamber 105 is provided with a secondary diaphragm 104, one side of the second front air chamber 105 is provided with a first air release hole 112, the secondary diaphragm 104 is arranged right above the first air release hole 112, the top of the secondary diaphragm 104 is connected with the inner wall of a valve main part 126 above the secondary diaphragm 104 through a second compression spring 114, the upper surface of the secondary diaphragm 104 is provided with a second back air chamber 106, the second front air chamber 105 is connected with the second back air chamber 106 through a second throttling hole 108, a second orifice 108 is provided in the secondary diaphragm 104. A second air vent 111 is arranged on one side of the second rear air chamber 106, an armature 110 is arranged above the second rear air chamber 106 and the second air vent 111, the armature 110 is arranged in an electromagnetic pilot valve, the armature 110 is connected with the electromagnetic pilot valve through a first compression spring 113, the first compression spring 113 is arranged in the armature 110, the electromagnetic pilot valve is connected with the top of a valve main part 126, a plurality of mounting holes are uniformly distributed on the periphery of the bottom of the valve main part 126, a circle of mounting wall 123 is arranged on the bottom of the valve main part 126, a positioning seat 120 is sleeved on the outer side of the mounting wall 123, the positioning seat 120 is in sealing connection with the mounting wall 123, an output port 109 is arranged at the lower end of the positioning seat 120, the peripheral edge of the main diaphragm 101 is fixed between the valve main member 126 and the positioning seat 120, the first orifice 107 penetrates the positioning seat 120 and the valve main member 126, the first orifice 107 is provided above the peripheral edge of the main diaphragm 101, and a blocking structure for blocking the first orifice 107 is provided outside each first orifice 107. The compressed air inlet is arranged on the positioning seat 120 and is positioned below the edge of the main diaphragm 101; the compressed air inlet is not lower than the port of the output port 109, and is an opening arranged along the flow direction of compressed air in the air distribution box 2, so that the compressed air enters the output port and only passes through one 90-degree corner, thereby reducing the fluid resistance and increasing the blowing quantity. The inner wall of the lower part of the mounting wall 123 is an inclined surface, the wall thickness of the lower part of the mounting wall 123 gradually becomes thinner downwards, the contact surface between the main diaphragm 101 and the valve main part 126 is reduced, and the up-and-down moving path of the main diaphragm 101 is increased. An O-ring is provided at the edge of the main diaphragm 101, and the main diaphragm 101 is fixed between the mounting wall 123 and the positioning seat 120 by the O-ring. A rubber ring is provided between the mounting wall 123 and the positioning seat 120 above the first orifice 107.
The inner wall of the bottom of the valve main part 126 is provided with a limiting seat 124, the limiting seat 124 is arranged in the mounting wall 123, and the limiting seat 124 is arranged right above the main diaphragm 101. The moving distance of the main diaphragm 101 between the lower end of the limiting seat 124 and the upper end of the output port 109 is not less than one fourth of the inner diameter of the output port 109, so that the channel between the compressed gas inlet and the output port 109 is enlarged, and the blowing amount is increased.
The longitudinal section of the positioning seat 120 above the compressed air inlet is in a Z-shaped structure; the part of the upper section of the positioning seat 120 with the Z-shaped structure comprises a cylinder structure, a first boss extending outwards is arranged at the upper end edge of the cylinder structure, and a second boss extending inwards is arranged at the lower end edge of the cylinder structure. The lower end of the mounting wall 123 presses against the second boss, the lower end surface of the first boss being lower than the lower end surface of the bottom periphery of the valve main member 126; the vertical distance between the upper end surface of the first boss and the upper end surface of the second boss is not greater than the vertical distance between the lower end surface of the mounting wall 123 and the lower end surface located directly above the first boss on the bottom surface of the valve main member 126. When the valve main part 126 is fixed on the gas distribution box 2, the first boss presses on the opening edge of the gas distribution box 2, so that the main membrane 101 is pressed between the mounting wall 123 and the positioning seat 120, one bolt in the prior art is reduced, and economic cost is saved.
The maximum outer diameter of the cylinder structure is matched with the inner diameter of the opening of the gas distribution box 2; the outer diameter of the first boss is larger than the inner diameter of the opening of the gas distribution box 2; the positioning seat 120 is disposed between the plurality of mounting holes and the ring of mounting walls 123, a ring of grooves is disposed at the lower end of the valve main member 126, and the grooves are connected with the upper end of the positioning seat 120 in an embedded manner. The width of the second boss is just larger than that of the O-shaped sealing ring on the edge of the main diaphragm 101, an arc-shaped groove is formed in the lower end of the mounting wall 123, and the O-shaped sealing ring on the edge of the main diaphragm 101 is arranged in the arc-shaped groove to limit the movement of the O-shaped sealing ring; the width of the lower end of the mounting wall 123 is just larger than the O-ring on the edge of the main diaphragm 101.
As shown in fig. 13 and 8, the submerged electromagnetic pulse valve of the present invention is mounted with a square-type gas distribution box:
before installation, the gas distribution box 2 is perforated and tapped with internal threads, a sealing ring (namely a sealing piece 122) is arranged between the valve main part 126 and the gas distribution box 2 by using a second bolt 117, a connecting pipe 125 is inserted into the output port 109, and the connecting pipe 125 is connected with the blowing pipe 4 according to different dust remover requirements after extending to the outside of the square gas distribution box 2.
Example 2
As shown in fig. 14 and 8, the submerged electromagnetic pulse valve of the present invention is mounted with a circular gas distribution box:
Before installation, the flange 121 is welded on the circular gas distribution box 2, and an installation plane is established. The submerged electromagnetic pulse valve of the present invention is then installed with the circular gas distribution box 2 in the same order and method as the square gas distribution box 2.
Otherwise, the same as in example 1 was used.
Claims (7)
1. A submerged electromagnetic pulse valve comprises a valve main part (126), wherein a main diaphragm (101) is arranged in the middle of the bottom of the valve main part (126), an output port (109) is arranged right below the main diaphragm (101), a first front air chamber (102) is arranged between the lower surface of the main diaphragm (101) and the output port (109), a plurality of compressed air inlets communicated with a gas distribution box (2) are arranged on the inner wall of the first front air chamber (102), a first rear air chamber (103) is arranged on the upper surface of the main diaphragm (101), a plurality of first throttle holes (107) communicated with the gas distribution box (2) are arranged on the inner wall of the first rear air chamber (103), the first rear air chamber (103) is communicated with a second front air chamber (105), an auxiliary diaphragm (104) is arranged on the upper surface of the second front air chamber (105), a first air release hole (112) is arranged on one side of the auxiliary diaphragm (104), a second rear air chamber (106) is arranged on the upper surface of the auxiliary diaphragm (104), a plurality of first throttle holes (107) are arranged between the second front air chamber (105) and the second rear air chamber (106) and the second air chamber (106) through the second throttle holes (110), a second air chamber (110) is arranged on one side of the second air chamber (110), the electromagnetic pilot valve is connected with the top of the valve main part (126), and is characterized in that a plurality of mounting holes are uniformly distributed on the periphery of the bottom of the valve main part (126), a circle of mounting wall (123) is arranged at the bottom of the valve main part (126), a positioning seat (120) is sleeved outside the mounting wall (123), the positioning seat (120) is in sealing connection with the mounting wall (123), an output port (109) is arranged at the lower end of the positioning seat (120), the periphery of the main diaphragm (101) is fixed between the valve main part (126) and the positioning seat (120), and a compressed air inlet is arranged on the positioning seat (120) and is positioned below the periphery of the main diaphragm (101); a port at which the compressed air inlet is not lower than the output port (109);
The longitudinal section of the positioning seat (120) above the compressed air inlet is of a Z-shaped structure; the part of the upper section of the positioning seat (120) with the Z-shaped structure comprises a cylinder structure, a first boss extending outwards is arranged at the edge of the upper end of the cylinder structure, and a second boss extending inwards is arranged at the edge of the lower end of the cylinder structure;
The lower end of the mounting wall (123) is pressed on the second boss, and the lower end surface of the first boss is lower than the lower end surface of the periphery of the bottom of the valve main part (126); the vertical distance between the upper end surface of the first boss and the upper end surface of the second boss is not greater than the vertical distance between the lower end surface of the mounting wall (123) and the lower end surface, which is positioned right above the first boss, on the bottom surface of the valve main part (126);
the maximum outer diameter of the cylinder structure is matched with the inner diameter of the opening of the gas distribution box (2); the outer diameter of the first boss is larger than the inner diameter of the opening of the gas distribution box (2); the positioning seat (120) is arranged between the plurality of mounting holes and the circle of mounting wall (123), the lower end of the valve main part (126) is provided with a circle of groove, and the groove is connected with the upper end of the positioning seat (120) in an embedded manner.
2. A submerged electromagnetic pulse valve as defined in claim 1, wherein said first orifice (107) extends through said positioning seat (120) and said valve main member (126), said first orifice (107) being disposed above the edge of said main diaphragm (101).
3. A submerged electromagnetic pulse valve as claimed in claim 1, characterized in that the inner wall of the bottom of the valve main part (126) is provided with a limit seat (124), the limit seat (124) is arranged in the mounting wall (123), and the limit seat (124) is arranged right above the main diaphragm (101).
4. A submerged electromagnetic pulse valve as claimed in claim 3, characterized in that the displacement distance of said main diaphragm (101) between the lower end of the limit seat (124) and the upper end of the outlet opening (109) is not less than one quarter of the inner diameter of the outlet opening (109).
5. A submerged electromagnetic pulse valve as claimed in claim 1, characterized in that said compressed air inlet is an opening arranged along the flow direction of the compressed air in the gas distribution box (2).
6. A submerged electromagnetic pulse valve as defined in claim 1, wherein the inner wall of the lower part of said mounting wall (123) is beveled; the wall thickness of the lower portion of the mounting wall (123) is tapered downward.
7. A submerged electromagnetic pulse valve as defined in claim 1, wherein the top of said main diaphragm (101) is connected to the inner wall of the valve main part (126) above the main diaphragm (101) by a third compression spring (115); the top of the auxiliary diaphragm (104) is connected with the inner wall of a valve main part (126) above the auxiliary diaphragm (104) through a second compression spring (114); the armature (110) is connected with the electromagnetic pilot valve through a first compression spring (113); the second orifice (108) is provided in the secondary diaphragm (104).
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| CN202010287268.3A CN111336304B (en) | 2020-04-13 | 2020-04-13 | Submerged electromagnetic pulse valve |
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| CN111336304B true CN111336304B (en) | 2024-05-31 |
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| CN113503396A (en) * | 2021-08-09 | 2021-10-15 | 苏州协昌环保科技股份有限公司 | Monitoring device and intelligent electromagnetic pulse valve based on monitoring of working condition parameters of outflow port |
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| CN202165679U (en) * | 2011-07-15 | 2012-03-14 | 上海袋式除尘配件有限公司 | Submerged type pulse valve with novel sealing member |
| CN203384457U (en) * | 2013-08-06 | 2014-01-08 | 贵阳五一创制机械有限公司 | Submerged electromagnetic pulse valve |
| CN212480296U (en) * | 2020-04-13 | 2021-02-05 | 上海尚泰环保配件有限公司 | Submerged electromagnetic pulse valve |
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| CN2699080Y (en) * | 2004-05-18 | 2005-05-11 | 刘伟东 | Electromagnetic impulse valve |
| CN101063491A (en) * | 2006-04-29 | 2007-10-31 | 江苏科林集团有限公司 | Bellows type pulse valve |
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| CN212480296U (en) * | 2020-04-13 | 2021-02-05 | 上海尚泰环保配件有限公司 | Submerged electromagnetic pulse valve |
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