CN203255743U - Pneumatic conveying gulp valve with automatic pulse air suction - Google Patents
Pneumatic conveying gulp valve with automatic pulse air suction Download PDFInfo
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- CN203255743U CN203255743U CN 201320161984 CN201320161984U CN203255743U CN 203255743 U CN203255743 U CN 203255743U CN 201320161984 CN201320161984 CN 201320161984 CN 201320161984 U CN201320161984 U CN 201320161984U CN 203255743 U CN203255743 U CN 203255743U
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Abstract
The utility model provides a pneumatic conveying gulp valve with automatic pulse air suction, and belongs to a device used on a pneumatic conveying system. A main piston installed in a second inner cavity between a main air suction valve body and a pulse generator valve body is connected with a main valve element in a first inner cavity of the main air suction valve body together through a first connection rod, a pressure switch piston in a third cavity is connected with a pressure switch valve element in a fourth inner cavity of a pulse pressure switch valve body together through a second connection rod, and a pulse generator main piston in the second inner cavity is connected with a pulse generator switch piston in a fifth inner cavity of the pulse generator valve body together through a third connection rod. The gulp valve can achieve automatic pulse air supply when a conveying pipeline is blocked, the pulse air supply is stopped automatically after the blocking of the conveying pipeline is removed, the blocking removing principle is similar to that of an air cannon, the pipeline can be dredged by least compressed air, and the long-distance transportation of high-concentration materials can be achieved while the blocking of the conveying pipeline is removed.
Description
Technical field
The utility model provides a kind of device that is used on the air-transport system, especially a kind of tonifying Qi valve.
Background technology
Air-transport system is one of main feedway of powder material, has the place of powder material before and after the eighties in thermal electric generation, steelworks, cement, chemical industry, grain processing etc., is widely applied.Whole system is comprised of several major parts such as sending cans, mating valve, pressurized air, delivery duct, ash silo, PLC or DCS automatic control devices.Sending cans are transmission containers of powder material, after pressurized air and powder material mix in sending cans, are transported to ash silo through pipeline and concentrate storage.Sending cans are different because of system to the delivery duct of ash silo, and the delivered length of pipeline is different, and are short tens meters, long upper km or farther.Because technical elements, in sending cans to the blockage phenomenon sometimes of the delivery duct between the ash silo, namely plugging, this is the fault that air-transport system often runs into.In a single day plugging occurs, and will affect the normal operation of air-transport system, when especially fed distance is far away, and the easier situation that plugging occurs.In order to solve the problem of plugging, when carrying out system, tend between pressurized air and ash conveying pipe, install gulp valve along with ash conveying pipe installs a compressed air piping additional additional.When ash conveying pipe generation pipeline plugging accident, gulp valve can be opened under the control of the electric signal that PLC or DCS pass over, replenish pressurized air in the ash conveying pipe, more pressurized air enters the material that can blow away plugging place behind the delivery duct, and the pipeline plugging accident of delivery duct is removed.The detection of pressure signal is generally finished by the pressure transformer or the pressure switch that are installed on the delivery duct, pressure signal transmission is processed to PLC or DCS automatic control device, restarts the electromagnetic valve of control gulp valve, and gulp valve is opened, complex process, and it is very high to control cost.Pressurized air adopts the continuous gas entry mode, and plugging place material is stressed, and steadily plugging removal effect is poor, and the used pressurized air of de-plugging is more.The China Patent Publication No. of applicant's invention is CN101225897 " a kind of aid blowing valve for pneumatic handling of automatic shutter ", realized automatically opening when delivery duct generation plugging and carried out block clearing, but meaning is outstanding aspect the raising plugging removal effect.
Summary of the invention
Technical problem to be solved in the utility model is, provides a kind of strength of autompulse air inlet to carry and use gulp valve, and it can realize the pulse tonifying Qi automatically when the delivery duct plugging, with the raising plugging removal effect.
The utility model is to realize like this, a kind of strength of autompulse air inlet is carried and is used gulp valve, it has the master air suction valve body, one side of master air suction valve body has the pressurized air inlet hole to be communicated with the first inner chamber of master air suction valve body, the opposite side of master air suction valve body has the delivery duct connecting bore, the master air suction valve body, pulsating pressure switching valve body and impulse deviser valve body are fixed together, the main piston of installing in the second inner chamber between master air suction valve body and the impulse deviser valve body links together by the main valve plug in the first inner chamber of first connecting rod and master air suction valve body, between the first interior cavity wall and the main valve plug end face the first spring is arranged, cavity and the first passage of delivery duct connecting bore between first connecting rod and master air suction valve body front portion, communicate with the 3rd inner chamber in the pulsating pressure switching valve body, the pressure switch spool of pressure switch piston in the 4th inner chamber of second connecting rod and pulsating pressure switching valve body in the 3rd cavity links together, between the 4th interior cavity wall and the pressure switch spool end face the second spring is arranged, the 4th inner chamber communicates with the first inner chamber through second channel, impulse deviser main piston in the second inner chamber passes through third connecting rod, link together with the impulse deviser switch plunger in the 5th inner chamber of impulse deviser valve body, the second inner chamber, impulse deviser spool in the 6th inner chamber between the 5th inner chamber is fixed on the third connecting rod middle part, third channel one end and second connecting rod, cavity between the pulsating pressure switching valve body communicates, the other end communicates with the 5th inner chamber, four-way one end communicates with the 5th inner chamber through cutoff port, the other end communicates with the 6th inner chamber, the 6th inner chamber also communicates with the second inner chamber through Five-channel, the second seal ring on first row emptying aperture and the second connecting rod, cavity between the 4th seal ring on the pressure switch piston is communicated with, the first seal ring on second row emptying aperture and the first connecting rod, cavity between the 6th seal ring on the main piston is communicated with, the 7th seal ring on the 3rd drain hole and the third connecting rod, cavity between the 8th seal ring on the impulse deviser main piston is communicated with, the 7th seal ring on the 4th drain hole and the third connecting rod, cavity between the 9th seal ring on the impulse deviser spool is communicated with, the 3rd seal ring on the 5th drain hole and the third connecting rod, cavity between the 5th seal ring on the impulse deviser switch plunger is communicated with, and the sectional area of each piston except the impulse deviser switch plunger is greater than the sectional area of each spool on the same connecting rod.
Adopt the strength conveying gulp valve of said structure, compare with existing continuous gas entry formula gulp valve, it can realize the autompulse tonifying Qi when the delivery duct plugging, remove the afterpulse air inlet in plugging and automatically stop tonifying Qi, its de-plugging principle is similar to air bubble, plugging removal effect is good, can advance with minimum compressed gas pipeline is dredged, except removing the delivery duct plugging, can also be used to realize high concentration material and at a distance conveying, greatly improved economy and the stability of air-transport system operation.
Description of drawings
Fig. 1 is the scheme drawing of the utility model structure.
The specific embodiment
The embodiment that provides below in conjunction with accompanying drawing further specifies the utility model.
As shown in drawings, the strength of a kind of autompulse air inlet of the utility model is carried and is used gulp valve, it has master air suction valve body 4, one side of master air suction valve body has pressurized air inlet hole 8 to be communicated with the first inner chamber 43 of master air suction valve body, the opposite side of master air suction valve body has delivery duct connecting bore 1, the master air suction valve body, pulsating pressure switching valve body 15 is fixed together with impulse deviser valve body 42, the main piston 2 of the second inner chamber 23 interior installations between master air suction valve body and the impulse deviser valve body links together by the main valve plug 6 in the first inner chamber of first connecting rod 5 and master air suction valve body, the first spring 7 is arranged between the first interior cavity wall and the main valve plug end face, cavity and the first passage 11 of delivery duct connecting bore between first connecting rod and master air suction valve body front portion, communicate with the 3rd inner chamber 12 in the pulsating pressure switching valve body, the pressure switch spool 18 of pressure switch piston 14 in the 3rd cavity in the 4th inner chamber 44 of second connecting rod 17 and pulsating pressure switching valve body links together, between the 4th interior cavity wall and the pressure switch spool end face the second spring 19 is arranged, the 4th inner chamber communicates with the first inner chamber through second channel 9, impulse deviser main piston 41 in the second inner chamber 23 is by third connecting rod 36, link together with the impulse deviser switch plunger 29 in the 5th inner chamber 32 of impulse deviser valve body, the second inner chamber, impulse deviser spool 26 in the 6th inner chamber 35 between the 5th inner chamber is fixed on the third connecting rod middle part, third channel 21 1 ends and second connecting rod 17, cavity between the pulsating pressure switching valve body communicates, the other end communicates with the 5th inner chamber, four-way 34 1 ends communicate with the 5th inner chamber through cutoff port 33, the other end communicates with the 6th inner chamber, the 6th inner chamber also communicates with the second inner chamber through Five-channel 40, the second seal ring 16 on first row emptying aperture 20 and the second connecting rod, cavity between the 4th seal ring 13 on the pressure switch piston 14 is communicated with, the first seal ring 3 on second row emptying aperture 10 and the first connecting rod 5, cavity between the 6th seal ring 22 on the main piston is communicated with, the 7th seal ring 38 on the 3rd drain hole 39 and the third connecting rod 36, cavity between the 8th seal ring 24 on the impulse deviser main piston 41 is communicated with, the 7th seal ring 38 on the 4th drain hole 25 and the third connecting rod 36, cavity between the 9th seal ring 37 on the impulse deviser spool 26 is communicated with, the 3rd seal ring 45 on the 5th drain hole 27 and the third connecting rod 36, cavity between the 5th seal ring 28 on the impulse deviser switch plunger 29 is communicated with, and the sectional area of each piston except impulse deviser switch plunger 29 is greater than the sectional area of each spool on the same connecting rod.
During use, pressurized air inlet hole 8 is communicated with compressed air piping, and near the delivery duct delivery duct connecting bore 1 and this gulp valve is communicated with.
It is pressurized air that source of the gas with certain pressure is arranged in the compressed air piping.Whether the pressure in the delivery duct can be unobstructed and change along with mass transport.When the situation of delivery duct obstruction occurring, the pressure of delivery duct can raise.When the pressure in delivery duct is elevated to certain value (this value can be determined by test, such as 0.30Mpa), illustrate that delivery duct stops up fully.Delivery duct connecting bore 1 can pass to pressure switch piston 14 residing the 3rd inner chambers 12 with the pressure in the delivery duct.When the pressure in the delivery duct was elevated to this value, the thrust that pressure switch piston 14 produces can making a concerted effort greater than following two strength: the pressurized airs that enter in the 4th cavity 44 acted on the pressure on the pressure switch spool 18, the pressure that the second spring 19 acts on the pressure switch spool.At this moment, pressure switch piston 14 can promote the pressure switch spool through second connecting rod 17 and leave the 4th inner chamber 44 inwalls, the pressure switch spool is opened, pressure gas enters the 4th inner chamber 44, enters third channel 21 by the cavity between the second seal ring 16 on pressure switch spool and the second connecting rod from second channel 9, in third channel entrance 31 places enter the 5th inner chamber 32,29 reaches of pressurized air driving pulse producer switch plunger, be shown in an open position, impulse deviser spool 26 is in the closed position.Pressurized air in the 5th inner chamber 32 enters in the second inner chamber 23 through cutoff port 33, four-way 34, Five-channel 40, the thrust that main piston 2 produces, can overcome the elastic force of the first spring 7 and pressurized air and act on pressure on the main valve plug, main valve plug is shown in an open position, the pressurized air of coming in from pressurized air inlet hole 8 enters in the delivery duct connecting bore 1, and then enter in the delivery duct, carry out de-plugging.Adjust the size of cutoff port, can control the flow that enters the gas in the second cavity from the 5th cavity, thus the speed that adjusting main piston 2 and impulse deviser main piston 41 are opened.
Can adjust by the ratio that changes between main piston 41, impulse deviser sealed valve core 26, impulse deviser switch plunger 29 sectional areas when the pressure in the second inner chamber 23 continues to be elevated to this value of 0.3Mpa() when above, the thrust that impulse deviser main piston 41 produces can making a concerted effort greater than following two power: the pressure of action of gas source on impulse deviser switch plunger 29 acts on pressure on the impulse deviser spool through gas behind the cutoff port.This moment, 41 meetings of impulse deviser main piston be opened by third connecting rod 36 driving pulse producer spools 26, and impulse deviser switch plunger 29 seals third channel entrance 31 places simultaneously.When impulse deviser spool 26 was opened, the gas in the second inner chamber 23 was discharged through the 4th drain hole 25 rapidly, makes the pressure drop in the second inner chamber.When dropping to 0.1Mpa when following, under the effect of the elastic force of the first spring 7 etc., main piston 2 returns make gas and the isolation of delivery duct connecting bore of compressed air inlet, and main valve plug is in closed condition.When pressure continues to descend, from the thrust of third channel entrance 31 gas paired pulses producer switch plunger out during greater than the power of impulse deviser main piston, the impulse deviser switch plunger can be opened the second inner chamber is inflated, when the second chamber pressure is increased to more than the 0.1Mpa (this value can be regulated by the elastic force of adjusting the first spring 7), make again main piston promote main valve plug and open, this moment, pressurized air entered again ash conveying pipe.Like this perseveration carries out pulsed to the material of plugging place and impacts, and it is blown away, and finally realizes de-plugging.
For ease of making, third connecting rod 36 can be segmentation structure, links into an integrated entity by its inner pipe link 30.
This gulp valve can install additional a plurality of between ash conveying pipe and compressed air piping.Different according to convey materials, the spacing between the gulp valve of determining to install additional.This gulp valve just moves when just occuring to stop up in the delivery duct of its installation place, and the gulp valve of other position can not move, and can reduce compressed-air actuated gas consumption like this.
Master air suction valve body, pulsating pressure switching valve body, impulse deviser valve body can be made into one.Dotted line among Fig. 1 has represented the boundary substantially of master air suction valve body, pulsating pressure switching valve body, impulse deviser valve body.
Claims (1)
1. the strength of an autompulse air inlet is carried and is used gulp valve, it is characterized in that, it has master air suction valve body (4), one side of master air suction valve body has pressurized air inlet hole (8) to be communicated with first inner chamber (43) of master air suction valve body, the opposite side of master air suction valve body has delivery duct connecting bore (1), the master air suction valve body, pulsating pressure switching valve body (15) is fixed together with impulse deviser valve body (42), the main piston (2) of installing in the second inner chamber (23) between master air suction valve body and the impulse deviser valve body links together by the interior main valve plug (6) of first connecting rod (5) and the first inner chamber of master air suction valve body, the first spring (7) is arranged between the first interior cavity wall and the main valve plug end face, cavity and the first passage (11) of delivery duct connecting bore between first connecting rod and master air suction valve body front portion, communicate with the 3rd inner chamber (12) in the pulsating pressure switching valve body, the pressure switch spool (18) of pressure switch piston (14) in the 3rd cavity in the 4th inner chamber (44) of second connecting rod (17) and pulsating pressure switching valve body links together, between the 4th interior cavity wall and the pressure switch spool end face the second spring (19) is arranged, the 4th inner chamber communicates with the first inner chamber through second channel (9), impulse deviser main piston (41) in the second inner chamber (23) is by third connecting rod (36), the impulse deviser switch plunger (29) interior with the 5th inner chamber (32) of impulse deviser valve body links together, the second inner chamber, impulse deviser spool (26) in the 6th inner chamber (35) between the 5th inner chamber is fixed on the third connecting rod middle part, third channel (21) one ends and second connecting rod (17), cavity between the pulsating pressure switching valve body communicates, the other end communicates with the 5th inner chamber, four-way (34) one ends communicate with the 5th inner chamber through cutoff port (33), the other end communicates with the 6th inner chamber, the 6th inner chamber also communicates with the second inner chamber through Five-channel (40), the second seal ring (16) on first row emptying aperture (20) and the second connecting rod, cavity between the 4th seal ring (13) on the pressure switch piston (14) is communicated with, the first seal ring (3) on second row emptying aperture (10) and the first connecting rod (5), cavity between the 6th seal ring (22) on the main piston is communicated with, the 7th seal ring (38) on the 3rd drain hole (39) and the third connecting rod (36), cavity between the 8th seal ring (24) on the impulse deviser main piston (41) is communicated with, the 7th seal ring (38) on the 4th drain hole (25) and the third connecting rod (36), cavity between the 9th seal ring (37) on the impulse deviser spool (26) is communicated with, the 3rd seal ring (45) on the 5th drain hole (27) and the third connecting rod (36), cavity between the 5th seal ring (28) on the impulse deviser switch plunger (29) is communicated with, and the sectional area of each piston except impulse deviser switch plunger (29) is greater than the sectional area of each spool on the same connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320161984 CN203255743U (en) | 2013-04-03 | 2013-04-03 | Pneumatic conveying gulp valve with automatic pulse air suction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320161984 CN203255743U (en) | 2013-04-03 | 2013-04-03 | Pneumatic conveying gulp valve with automatic pulse air suction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203255743U true CN203255743U (en) | 2013-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320161984 Expired - Lifetime CN203255743U (en) | 2013-04-03 | 2013-04-03 | Pneumatic conveying gulp valve with automatic pulse air suction |
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| Country | Link |
|---|---|
| CN (1) | CN203255743U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104097951A (en) * | 2013-04-03 | 2014-10-15 | 马莉 | Pneumatic conveying air replenishment valve of automatic impulse suction |
| CN108128634A (en) * | 2018-01-29 | 2018-06-08 | 华北水利水电大学 | A kind of adjustable pulse whirlwind generator |
-
2013
- 2013-04-03 CN CN 201320161984 patent/CN203255743U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104097951A (en) * | 2013-04-03 | 2014-10-15 | 马莉 | Pneumatic conveying air replenishment valve of automatic impulse suction |
| CN108128634A (en) * | 2018-01-29 | 2018-06-08 | 华北水利水电大学 | A kind of adjustable pulse whirlwind generator |
| CN108128634B (en) * | 2018-01-29 | 2023-11-24 | 华北水利水电大学 | Adjustable pulse rotational flow generating device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |