CN215258109U - Electromagnetic pulse valve using piston with sealing ring - Google Patents
Electromagnetic pulse valve using piston with sealing ring Download PDFInfo
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- CN215258109U CN215258109U CN202120059482.3U CN202120059482U CN215258109U CN 215258109 U CN215258109 U CN 215258109U CN 202120059482 U CN202120059482 U CN 202120059482U CN 215258109 U CN215258109 U CN 215258109U
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Abstract
The utility model provides an use electromagnetic pulse valve of taking sealing washer piston, its characterized in that: the main valve pulse gas connecting pipe is arranged at the lower part of the main valve cylinder body and is used for being sleeved with a gas bag mounting sleeve, a main valve rear gas chamber is arranged in the main valve pulse gas connecting pipe body, a main valve piston is arranged in the main valve rear gas chamber in a sliding mode, a first through hole penetrating out of the main valve cylinder body is formed in the main valve cylinder body and located above the main valve rear gas chamber, and a second through hole communicated with a pressure relief hole is formed in the main valve cylinder body and located beside the first through hole; and a control valve body for controlling the connection and disconnection of the first port and the second port is arranged above the main valve cylinder body. The electromagnetic pulse valve using the piston with the sealing ring is stable and reliable in operation and long in service life.
Description
The technical field is as follows:
the utility model relates to an electromagnetic pulse valve using a piston with a sealing ring.
Background art:
the electromagnetic pulse valve is a generating device which generates pulse vibration airflow in the bag type dust collector to facilitate dust removal, and the electromagnetic pulse valve and a pulse injection control instrument form a dust removal injection system of the dust collector; the selection of the high-performance electromagnetic pulse valve is an important measure for ensuring the blowing effect of the bag type dust collector, and meanwhile, the high-quality bag type dust collector can be ensured only by completely eliminating the adverse factors of the blowing system of the bag type dust collector, which influence the blowing effect, so that the high dust cleaning effect is achieved.
At present, the electromagnetic pulse valves used in China all use diaphragms as important injection parts for closing the valves, and the pulse valves stop injecting; the diaphragm bears high-frequency pressure change, and also bears deformation movement generated by up-down opening and closing at the same time, so that the service life of the diaphragm is seriously influenced, the diaphragm is broken, air is leaked, and the whole dust remover system fails.
The piston type pulse valve overcomes the defects of the traditional diaphragm type pulse valve, but the piston type pulse valve used in China is basically an embedded type pulse valve structure purchased from foreign ALSTOM or TURBO, some manufacturers in China have imitation, and the appearance and the structure of the piston type pulse valve are the same as those of the embedded type pulse valve of the ALSTOM or TURBO, as shown in figure 1.
The working principle of the pulse valve is as follows:
as shown in fig. 1: high-pressure air is introduced from an air inlet X1 and enters a front air chamber X2;
1. when an electromagnetic coil X3 of the electromagnetic pulse valve is electrified, an armature component X4 is lifted upwards under the action of electromagnetic force, a pressure relief hole X5 is opened, gas is discharged, due to the throttling action of a diaphragm throttling hole X6, the flow of the gas flowing out of the pressure relief hole is larger than the flow of the gas flowing into a rear gas chamber X7 through the throttling hole, the pressure of the rear gas chamber is lower than that of a front gas chamber, the gas pressure of the front gas chamber jacks up a diaphragm X8, and a blowing opening of a pulse gas outlet is opened for gas blowing.
2. When the electromagnetic coil of the electromagnetic pulse valve is not electrified, gas enters the rear air chamber through the throttling hole in the diaphragm between the upper shell and the lower shell, the armature component blocks the pressure relief hole under the action of the spring, the gas cannot be discharged, the pressure of the rear air chamber X7 is consistent with that of the front air chamber X2, and the high-pressure gas is not sprayed out under the action of different pressure areas of the pressure spring X10 and the upper front air chamber to form primary pulse gas.
The problems that can appear when the above-mentioned current pulse valve is used:
1. because the throttling hole on the control valve diaphragm X8 is smaller (about phi 1.5), the inflow of the gas from the rear gas chamber to the control gas chamber is reduced due to the blockage of pollutants such as dust, the gas supply time of the rear gas chamber to the control gas chamber is prolonged, the diaphragm blocks a blowing opening sprayed by a pulse gas outlet, the blowing opening is not sharp, and the pulse waveform is slowed down, so that the dust removal effect of the dust remover is reduced;
2. because the air supply time of the front air chamber to the rear air chamber is prolonged, the closing of the diaphragm is delayed, a large amount of high-pressure air escapes from the pulse air outlet, and the energy is wasted;
3. the control membrane is easy to crack and lose efficacy due to the flushing of high-pressure gas because the membrane with the throttling hole is opened.
The invention content is as follows:
the utility model discloses improve to above-mentioned problem, promptly the to-be-solved technical problem of the utility model provides an use the electromagnetic pulse valve of taking the sealing washer piston, this use the electromagnetic pulse valve job stabilization of taking the sealing washer piston reliable, long service life.
The utility model discloses use the electromagnetic pulse valve of taking the sealing washer piston, its characterized in that: the main valve pulse gas connecting pipe is arranged at the lower part of the main valve cylinder body and is used for being sleeved with a gas bag mounting sleeve, a main valve rear gas chamber is arranged in the main valve pulse gas connecting pipe body, a main valve piston is arranged in the main valve rear gas chamber in a sliding mode, a first through hole penetrating out of the main valve cylinder body is formed in the main valve cylinder body and located above the main valve rear gas chamber, and a second through hole communicated with a pressure relief hole is formed in the main valve cylinder body and located beside the first through hole; and a control valve body for controlling the connection and disconnection of the first port and the second port is arranged above the main valve cylinder body.
Furthermore, the control valve body comprises a control valve cover covering the upper surface of the main valve cylinder body and a control valve diaphragm group positioned between the control valve cover and the upper surface of the main valve cylinder body, the middle part of the control valve diaphragm group covers the second port, the control valve diaphragm group is provided with a throttling hole opposite to the first port, a control valve rear air chamber is arranged above the control valve diaphragm group in the control valve housing, a control valve front air chamber is arranged below the valve diaphragm group, a first opening and a second opening are arranged above the rear air chamber of the control valve in the control valve housing, the second opening is communicated with the control valve pressure relief hole, an electromagnetic valve telescopic valve head used for covering the first opening and the second opening is arranged above the control valve housing, so as to control the on-off of the first opening and the second opening, and a tower-shaped pressure spring is arranged between the inner bottom of the air chamber behind the control valve and the control valve diaphragm group.
Furthermore, a first groove is formed in the peripheral wall of the main valve pulse gas connecting pipe, and a first sealing ring is arranged in the first groove.
Furthermore, the main valve piston is made of plastic or light metal material, a second groove is arranged on the outer peripheral wall of the main valve piston, and a piston guide ring is arranged on the outer peripheral wall of the main valve piston and positioned in the second groove.
Furthermore, the main valve piston is made of plastic or light metal material, and is provided with two grooves on the outer peripheral wall, a sealing ring is arranged in the first groove, and a piston guide ring is arranged on the outer peripheral wall of the main valve piston and below the first groove.
Furthermore, the upper end face of the main valve piston is provided with a concave groove, and a piston return spring is arranged between the groove bottom of the main valve rear air chamber and the main valve piston concave groove; the lower part of the main valve piston is provided with a piston throttling hole.
Furthermore, a buffer pad is arranged at the bottom of the groove of the main valve rear air chamber, and the lower end face of the buffer pad is matched with the upper end face of the main valve piston.
The utility model discloses a show the advantage:
1. the piston structure is changed, the air inflow change caused by the change of the clearance is eliminated, and the blowing pulse characteristic is improved.
2. The blowing effect is improved, the manufacturing cost of equipment is reduced, the original piston has complex outer diameter size and higher processing and inspection cost, and the processing precision and the manufacturing cost can be reduced by using the sealing ring.
3. Can improve the above 1-3 types of defects and replace foreign import pieces。
Description of the drawings:
FIG. 1 is a sectional configuration view of a conventional electromagnetic pulse valve;
FIG. 2 is a sectional view showing the structure of the electromagnetic pulse valve of the present invention;
FIGS. 3 and 4 are partial views of FIG. 2;
fig. 5 to 9 are sectional configuration views of the respective operation states of the electromagnetic pulse valve.
Fig. 10 is a sectional structural view of the present invention mounted to a conventional air bag.
The specific implementation mode is as follows:
the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The utility model discloses use the electromagnetic pulse valve who takes the sealing washer piston to include main valve cylinder body 1 and establish in main valve cylinder body 1 lower part and be used for the main valve pulse gas takeover 2 that cup joints with gas bag installation sleeve pipe B, main valve pulse gas takeover 2 internal is equipped with main valve rear air chamber 4, it is equipped with main valve piston 6 to slide in the main valve rear air chamber 4, the main valve cylinder body is located the main valve rear air chamber's top and is equipped with first opening 7 that wears out the main valve cylinder body, and the side that lies in first opening on the main valve cylinder body is equipped with the second opening 8 that communicates with pressure release hole 9; a control valve body A1 for controlling the connection and disconnection of the first port 7 and the second port 8 is arranged above the main valve cylinder body 1; the lower part of the main valve pulse gas connecting pipe 2 is provided with a plurality of windows B2 which facilitate gas to enter a blowing pipe B1.
The control valve body A1 comprises a control valve cover A2 covering the upper surface of the main valve cylinder and a control valve diaphragm group A3 between the control valve cover and the upper surface of the main valve cylinder, the middle part of the control valve diaphragm group A3 covers the second port 8, the control valve diaphragm group is provided with a throttling hole A4 opposite to the first port 7, a control valve rear air chamber A5 is arranged above the control valve diaphragm group in the control valve housing, a control valve front air chamber A11 is arranged below the valve diaphragm group, a first opening a6 and a second opening a7 are provided in the control valve enclosure a2 above the control valve rear plenum a5, the second opening A7 is communicated with a control valve pressure relief hole A8, an electromagnetic valve A12 telescopic valve head A9 used for covering the first opening and the second opening is arranged above the control valve housing to realize the on-off of the first opening and the second opening, a tower-shaped pressure spring A10 is arranged between the inner bottom of the rear air chamber A5 of the control valve and the diaphragm group A3 of the control valve.
A first groove is arranged on the outer peripheral wall of the main valve pulse gas connecting pipe 2, a first sealing ring 10 is arranged in the first groove, and the first sealing ring 10 can be a Y-shaped or O-shaped sealing ring; the gas bag installation sleeve is guaranteed not to leak, the sealing performance of the connection of the gas bag installation sleeve and the main valve pulse gas connecting pipe 2 can be guaranteed through the first sealing ring 10, and the processing difficulty is reduced.
The main valve piston is made of plastic or light metal material, and has two grooves on the outer wall, the first groove has sealing ring 11 inside, and piston guide ring 12 is set below the first groove on the outer wall of the main valve piston.
The upper end face of the main valve piston is provided with a concave groove 13, and a piston return spring 14 is arranged between the groove bottom of the main valve rear air chamber and the main valve piston concave groove; the lower part of the main valve piston is provided with a piston orifice 15, and the number of the piston orifices 15 can be 1 to 4.
The bottom of the groove of the main valve rear air chamber is provided with a buffer cushion 16, the lower end surface of the buffer cushion is matched with the upper end surface of the main valve piston, the collision between the piston and the main valve body can be avoided during working, the working noise of the pulse valve is reduced, and the service life of the product is prolonged.
The working surface and the outer surface of the main valve body, which are contacted with the piston, are subjected to special oxidation treatment, so that the wear-resistant effect is achieved;
the utility model discloses the theory of operation as follows:
(1) solenoid valve A12 not energized
Due to the action of an armature spring of the non-energized electromagnetic armature assembly of the electromagnetic valve, the electromagnetic valve A12 telescopic valve head A9 covers the first opening A6 and the second opening A7, so that the rear air chamber of the control valve, the first opening A6, the second opening A7 and the pressure relief hole A8 of the control valve are not communicated, and the channel is in a closed state;
the gas in the air bag enters the main valve rear air chamber 4 and the control valve rear air chamber A5 through the piston orifice 15, and because the pressure of the control valve front air chamber (positioned below the control valve diaphragm group A3), the pressure of the rear air chamber and the pressure of the main valve rear air chamber and the gas of the main valve front air chamber in the air bag are balanced, the control valve diaphragm group A3 and the main valve piston 6 respectively act on the tower-shaped pressure spring A10 and the piston return spring 14, and the main valve piston pressure 6 is on the upper end surface of the main valve pulse gas connecting pipe 2, so as to close the main valve pulse gas connecting pipe 2, as shown in figure 5;
(2) energizing the electromagnetic coil
The electromagnetic coil is electrified under the instruction of a pulse controller, the armature assembly is attracted by magnetic force, the electromagnetic valve A12 telescopic valve head A9 does not cover the first opening A6 and the second opening A7, so that the rear air chamber of the control valve, the first opening A6, the second opening A7 and the pressure relief hole A8 of the control valve are communicated, and a channel is in an open state;
the gas in the rear air chamber A5 of the control valve is exhausted from the first opening A6, the second opening A7 to the pressure relief hole A8 of the control valve, see figure 6;
(3) the electromagnetic valve is electrified
Since the gas in the post-control-valve air chamber a5 is exhausted through the control-valve pressure relief hole A8, the gas in the post-control-valve air chamber a5 is supplemented by the orifice hole a4 in the control diaphragm, but the pressure in the post-control-valve air chamber a5 is lower than that in the post-main-valve air chamber 4, the set of control-valve diaphragm A3 is pushed open, and the gas in the post-main-valve air chamber 4 is exhausted through the main-valve pressure relief hole 9, see fig. 7;
(4) the electromagnetic valve is electrified, and the armature component is attracted by magnetic force and is in an open state;
because the gas in the rear air chamber of the main valve is rapidly discharged, although the gas pressure in the front air chamber 3 of the main valve in the air bag is supplemented by the piston orifice 15, the gas pressure also rapidly overcomes the acting force of the piston return spring 14, the piston 6 of the main valve is pushed open, and the gas in the front air chamber 3 of the main valve in the air bag is rapidly flushed out from the nozzle of the injection pipe, as shown in fig. 8;
(5) the electromagnetic valve is cut off by the controller
The electromagnetic valve is restricted and powered off by a controller, and the armature assembly closes the control valve under the action of an armature spring, so that the rear air chamber A5 is communicated with the control valve pressure relief hole A8;
because the communication between the control valve rear air chamber A5 and the control valve pressure relief hole A8 is closed, the air of the control valve rear air chamber A5 is supplemented through the control valve diaphragm orifice A3, the pressure of the control valve rear air chamber is equal to the air pressure of the main valve rear air chamber, and the control valve diaphragm assembly A3 is quickly closed under the action of the tower-shaped pressure spring A10;
because the gas in the rear main valve chamber 4 is exhausted and blocked, the gas in the rear main valve chamber 4 is quickly supplemented by the throttle orifice 15 of the main valve piston, when the gas pressure in the rear main valve chamber is equal to the pressure in the front main valve chamber in the air bag, the main valve piston 6 is quickly closed under the adsorption action of the piston return spring 14 and the gas jet, and the main valve pulse gas connecting pipe 2 forms a primary pulse gas source, which is shown in fig. 9.
The utility model discloses a show the advantage:
1. the piston structure is changed, the air inflow change caused by the change of the clearance is eliminated, and the blowing pulse characteristic is improved.
2. The blowing effect is improved, the manufacturing cost of equipment is reduced, the original piston has complex outer diameter size and higher processing and inspection cost, and the processing precision and the manufacturing cost can be reduced by using the sealing ring.
3. Can improve the above 1-3 types of defects and replace foreign import pieces。
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (3)
1. The utility model provides an use solenoid pulse valve of taking sealing washer piston which characterized in that: the main valve pulse gas connecting pipe is arranged at the lower part of the main valve cylinder body and is used for being sleeved with a gas bag mounting sleeve, a main valve rear gas chamber is arranged in the main valve pulse gas connecting pipe body, a main valve piston is arranged in the main valve rear gas chamber in a sliding mode, a first through hole penetrating out of the main valve cylinder body is formed in the main valve cylinder body and located above the main valve rear gas chamber, and a second through hole communicated with a pressure relief hole is formed in the main valve cylinder body and located beside the first through hole; a control valve body for controlling the connection and disconnection of the first port and the second port is arranged above the main valve cylinder body; a first groove is formed in the peripheral wall of the main valve pulse gas connecting pipe, and a first sealing ring is arranged in the first groove; the main valve piston is made of plastic or light metal materials, a second groove is formed in the peripheral wall of the main valve piston, and a piston guide ring is arranged on the peripheral wall of the main valve piston and positioned in the second groove; the upper end face of the main valve piston is provided with a concave groove, and a piston return spring is arranged between the bottom of the main valve rear air chamber and the main valve piston concave groove; the lower part of the main valve piston is provided with a piston throttling hole.
2. The electromagnetic pulse valve using a piston with a packing according to claim 1, characterized in that: the control valve body is including covering the control valve housing of main valve cylinder body upper surface and being located the control valve diaphragm group between control valve housing and the main valve cylinder body upper surface, the middle part of control valve diaphragm group covers the second opening, is equipped with the orifice relative with first opening on the control valve diaphragm group, lies in control valve diaphragm group top and has control valve rear air chamber in the control valve housing, and valve diaphragm group below has control valve front air chamber lie in control valve rear air chamber top in the control valve housing and be equipped with first trompil and second trompil, second trompil and control valve pressure release hole intercommunication, control valve housing top is equipped with the flexible valve head of solenoid valve that is used for covering first trompil and second trompil to the expert of first trompil of control and second trompil, disconnected, is equipped with the turriform pressure spring behind the control valve between air chamber inner bottom and the control valve diaphragm group.
3. The electromagnetic pulse valve using a piston with a packing according to claim 1, characterized in that: and a buffer cushion is arranged at the bottom of the groove of the main valve rear air chamber, and the lower end face of the buffer cushion is matched with the upper end face of the main valve piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120059482.3U CN215258109U (en) | 2021-01-11 | 2021-01-11 | Electromagnetic pulse valve using piston with sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120059482.3U CN215258109U (en) | 2021-01-11 | 2021-01-11 | Electromagnetic pulse valve using piston with sealing ring |
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| Publication Number | Publication Date |
|---|---|
| CN215258109U true CN215258109U (en) | 2021-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120059482.3U Active CN215258109U (en) | 2021-01-11 | 2021-01-11 | Electromagnetic pulse valve using piston with sealing ring |
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| CN (1) | CN215258109U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115487612A (en) * | 2022-10-11 | 2022-12-20 | 上海尚泰环保配件有限公司 | Electromagnetic pulse valve for high-speed differential control of air flow channel |
-
2021
- 2021-01-11 CN CN202120059482.3U patent/CN215258109U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115487612A (en) * | 2022-10-11 | 2022-12-20 | 上海尚泰环保配件有限公司 | Electromagnetic pulse valve for high-speed differential control of air flow channel |
| CN115487612B (en) * | 2022-10-11 | 2023-10-24 | 上海尚泰环保配件有限公司 | Electromagnetic pulse valve for high-speed differential control airflow channel |
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Effective date of registration: 20230427 Address after: Building 2, No. 216 Wenhui Road, Tongxiang Economic Development Zone, Tongxiang City, Jiaxing City, Zhejiang Province, 314599 Patentee after: Tongxiang Xinlong Machinery Parts Co.,Ltd. Address before: 355209 shuijingtou Industrial Park, Qinyu Town, Fuding City, Ningde City, Fujian Province Patentee before: Fuding Xinlong Machinery Parts Co.,Ltd. |