CN203809752U - Pulse valve and moving diaphragm of pulse valve - Google Patents
Pulse valve and moving diaphragm of pulse valve Download PDFInfo
- Publication number
- CN203809752U CN203809752U CN201320681449.XU CN201320681449U CN203809752U CN 203809752 U CN203809752 U CN 203809752U CN 201320681449 U CN201320681449 U CN 201320681449U CN 203809752 U CN203809752 U CN 203809752U
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- CN
- China
- Prior art keywords
- diaphragm
- valve
- press table
- dynamic
- moving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims abstract description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 14
- 239000012528 membrane Substances 0.000 claims description 15
- 239000004411 aluminium Substances 0.000 claims description 8
- 238000005498 polishing Methods 0.000 claims description 3
- 238000002474 experimental method Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 25
- 210000004907 gland Anatomy 0.000 description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000000428 dust Substances 0.000 description 6
- 238000010926 purge Methods 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 230000006837 decompression Effects 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000004880 explosion Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Abstract
The utility model discloses a pulse valve and a moving diaphragm thereof. The use performance of the pulse valve under high temperature is improved. The pulse valve comprises a valve main body formed by a valve body and a valve cover; the moving diaphragm capable of moving front and back is arranged between the valve body and the valve cover; a valve port capable of being closed by the moving diaphragm positioned at the front moving position is formed in the valve body; the moving diaphragm comprises a diaphragm body of which the edge is arranged on the valve main body, a diaphragm lower press plate used as a valve port sealing part and a diaphragm upper press plate; the diaphragm body is positioned between the diaphragm lower press plate and the diaphragm upper press plate; the diaphragm body, the diaphragm lower press plate and the diaphragm upper press plate are integrally connected by a threaded connection mechanism; the diaphragm lower press plate adopts an aluminum plate. According to the moving diaphragm, the aluminum plate is used for replacing a rubber plate as the diaphragm lower press plate, the sealing effect of the aluminum plate is similar to that of the rubber plate by the test of an experiment while the using temperature of the aluminum plate is far higher that that of the rubber plate, so the effect of use under the high temperature is achieved.
Description
Technical field
The utility model relates to the dynamic diaphragm of a kind of sentinel valve and sentinel valve, relates in particular to a kind of high temperature filtration deduster deashing sentinel valve and dynamic diaphragm thereof.
Background technique
The filter collector (for example sack cleaner, sintered porous membrane filtration deduster) of industrial use is generally all provided with back-blowing dust removing device, when filtration, working as the amount of dust of adhering on filter core acquires a certain degree, just need to start back-blowing dust removing device filter core is carried out to pulse backblowing deashing, dust on filter core is departed from, thereby reach the reusable object of filter core.Sentinel valve is the key components in back-blowing dust removing device, is to control the terminal equipment that blowback air starts and closes.
Fig. 1 is the filter collector deashing sentinel valve that claimant adopts at present, it comprises the valve body being made up of valve body 7 and valve gap 4, the dynamic diaphragm 5 that can move forward and backward is housed between valve body 7 and valve gap 4, in valve body 7, being provided with can be by the valve port 8 sealing in the locational dynamic diaphragm 5 that moves forward, this dynamic diaphragm 5 kept by spring between dynamic diaphragm 5 and valve gap 4 and and valve body 7 between form before air cavity 6, air cavity 12 after forming between dynamic diaphragm 5 and valve gap 4, between described front air cavity 6 and rear air cavity 12, be communicated with via the gas port 13 being arranged in valve body, the upper dynamic diaphragm 1 that can move forward and backward is equipped with at the top of valve gap 4, the below that is positioned at dynamic diaphragm 1 on this in valve gap 4 is provided with can be by suction chamber 2 and the exhaust chamber 15 blocked in the locational upper dynamic diaphragm 1 that moves forward, described suction chamber 2 and rear air cavity 12 conductings, exhaust port 11 conductings of exhaust chamber 15 and valve gap 4 sidepieces, the top of valve gap 4 is provided with an end cap, upper dynamic diaphragm 1 is arranged between this end cap and valve gap 4 and by the spring between upper dynamic diaphragm 1 and end cap and is kept, the bottom of end cap is provided with the return chamber suitable with upper dynamic diaphragm 1, when upper dynamic diaphragm 1 is when moving after return chamber, suction chamber 2 and exhaust chamber 15 conductings, this return chamber is by being positioned at end cap, in valve gap 4 and the pilot hole 3 being communicated with and described rear air cavity 12 conductings, the upper end of end cap is provided with one for controlling the solenoid valve 9 of return chamber exhaust, after solenoid valve 9 starts, gas in return chamber is discharged the exhaust passage from end cap 10.The working procedure of above-mentioned sentinel valve is: the purge gas that comes from the suction port 14 of valve body 7 enters rear air cavity 12 and suction chamber 2 by gas port 13, and enter return chamber by pilot hole 3, meanwhile, purge gas enters front air cavity 6, at this moment, no matter dynamic diaphragm 5 is still gone up dynamic diaphragm 1, due to their both sides air pressure balance, therefore all under the effect of spring separately, be set up in anterior displacement, at this moment, dynamic diaphragm 5 seals valve port 8, and upper dynamic diaphragm 1 is blocked suction chamber 2 and exhaust chamber 15; In the time will carrying out blowback, start solenoid valve 9, discharge the exhaust passage 10 of the gas in return chamber from end cap, return chamber instantaneous loss of pressure, upper dynamic diaphragm 1 overcomes spring pressure and moves after return chamber, makes suction chamber 2 and exhaust chamber 15 conductings, at this moment, gas in rear air cavity 12 is discharged from exhaust port 11 rapidly, cause rear air cavity 12 decompressions, dynamic diaphragm 5 overcome spring pressure backward air cavity 12 move, dynamic diaphragm 5 is separated with valve port 8, purge gas sprays from valve port 8, finally acts on filter core.
In actual moving process, model utility people finds, in some occasion (for example, in the time that high-temperature gas is carried out to dust removal by filtration, for fear of filter core dewfall) need to use high-temperature gas to carry out blowback, at this moment, above-mentioned sentinel valve easily produces the problem that component are fragile and its service time, long rear dynamic diaphragm significantly declined to sealing valve port of its end cap part.After careful analysis, find: the first, in the time using high-temperature gas to carry out blowback, high-temperature gas will enter return chamber by pilot hole, thereby cause the component temperature of end cap part higher, thereby cause rapid wear problem; Second, dynamic diaphragm comprises that edge is arranged on the membrane body on valve body, the diaphragm press table that doubles as sealing valve port part and diaphragm top board, membrane body is between diaphragm press table and diaphragm top board and be threaded connection mechanism and diaphragm press table and diaphragm top board and connect as one, and diaphragm press table adopts rubber to make, and adopt rubber material just because of diaphragm press table, working life under its high temperature is short, thereby causes the sealing problem to valve port.
Model utility content
Technical problems to be solved in this application are to provide a kind of sentinel valve and dynamic diaphragm thereof that improves usability under high-temperature gas.
For this reason, the application's sentinel valve comprises the valve body being made up of valve body and valve gap, the dynamic diaphragm that can move forward and backward is housed between valve body and valve gap, in valve body, being provided with can be by the valve port in the locational dynamic diaphragm sealing that moves forward, described dynamic diaphragm comprises that edge is arranged on the membrane body on valve body, the diaphragm press table that doubles as sealing valve port part and diaphragm top board, membrane body is between diaphragm press table and diaphragm top board and be threaded connection mechanism and diaphragm press table and diaphragm top board and connect as one, and described diaphragm press table adopts aluminium sheet.
The dynamic diaphragm of sentinel valve, comprise that edge is arranged on the membrane body on valve body, the diaphragm press table that doubles as sealing valve port part and diaphragm top board, membrane body is between diaphragm press table and diaphragm top board and be threaded connection mechanism and diaphragm press table and diaphragm top board and connect as one, and described diaphragm press table adopts aluminium sheet.
Dynamic diaphragm uses aluminium sheet to replace rubber plate as diaphragm press table, similar through experiment showed, sealing effect and rubber plate, but in serviceability temperature far above rubber plate, thereby reached the effect of applied at elevated temperature.
Below in conjunction with the drawings and specific embodiments, the utility model is described further.The aspect that the utility model is additional and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Brief description of the drawings
Fig. 1 is the structural representation of the current filter collector deashing sentinel valve adopting.
Fig. 2 is the structural representation of the application's sentinel valve.
Fig. 3 is the structural representation of the application's sentinel valve dynamic diaphragm part.
Embodiment
As shown in Figure 2, sentinel valve comprises the valve body being made up of valve body 7 and valve gap 4, the dynamic diaphragm 5 that can move forward and backward is housed between valve body 7 and valve gap 4, in valve body 7, being provided with can be by the valve port 8 sealing in the locational dynamic diaphragm 5 that moves forward, this dynamic diaphragm 5 kept by spring between dynamic diaphragm 5 and valve gap 4 and and valve body 7 between form before air cavity 6, air cavity 12 after forming between dynamic diaphragm 5 and valve gap 4, between described front air cavity 6 and rear air cavity 12, be communicated with via the gas port 13 being arranged in valve body, the upper dynamic diaphragm 1 that can move forward and backward is equipped with at the top of valve gap 4, the below that is positioned at dynamic diaphragm 1 on this in valve gap 4 is provided with can be by suction chamber 2 and the exhaust chamber 15 blocked in the locational upper dynamic diaphragm 1 that moves forward, described suction chamber 2 and rear air cavity 12 conductings, exhaust port 11 conductings of exhaust chamber 15 and valve gap 4 sidepieces, the top of valve gap 4 is provided with a gas circuit and valve body gland 16 independent of each other, described upper dynamic diaphragm 1 is arranged between this gland 16 and valve gap 4 and by the spring between upper dynamic diaphragm 1 and gland 16 and is kept, the bottom of gland 16 is provided with the return chamber suitable with upper dynamic diaphragm 1, when upper dynamic diaphragm 1 is when moving after return chamber, suction chamber 2 and exhaust chamber 15 conductings, and, gland 4 is provided with the ventilating hole 17 with the conducting of return chamber, described ventilating hole 17 is connected with an electromagnetism-gas-driving valve 21, thereby is inputted or from this ventilating hole 17, discharge and control the control gas that above dynamic diaphragm 1 moves forward and backward in ventilating hole 17 by this electromagnetism-gas-driving valve 21.
Wherein, described gland 16 is preferably communicated with electromagnetism-gas-driving valve 21 by a middle air pipe 18, thereby makes this electromagnetism-gas-driving valve 21 away from gland 16, can reduce the ambient temperature of electromagnetism-gas-driving valve 21, makes electromagnetism-gas-driving valve 21 stable operation for a long time.As Fig. 2, the concrete structure of gland 16 parts is: gland 16 is cylindricality, and its lower end is the flange being connected with valve gap 4 end faces, and described return chamber, ventilating hole 17 arrange from the bottom to top in the axial direction of gland 16; Described middle air pipe 18 is axially connected in the upper end of gland 16 and the ventilating hole 17 of gland 16 is communicated with.Middle air pipe 18 can directly be welded on the end face of gland 16, also can take the modes such as screw thread to be connected with gland 16.In said structure, the structure of gland 16 is very simple and be convenient to manufacture, installs dynamic diaphragm 1 place and relate to sealing between gland 16 and valve gap 4, and gland 16 inside are without other Seal Design, and working stability is very high.In addition, on the wall of middle air pipe 18, interval has multiple radiating grooves 19 vertically, to increase the surface area of middle air pipe, accelerates heat radiation.On this basis, in radiating groove 19, can fill radiating fin 20, radiating fin 20 adopts the material that thermal conductivity is good, further improves the heat dissipation potential of middle air pipe 18, better protects electromagnetism-gas-driving valve 21.Electromagnetism-gas-driving valve 21 preferably adopts explosion-proof type electromagnetism-gas-driving valve.Explosion-proof type electromagnetism-gas-driving valve can be selected from the multiple electromagnetism-gas-driving valve with explosion prevention function on the market.And electromagnetism-gas-driving valve 21 concrete structures are prior art, the application is superfluous words no longer.
As Fig. 3, dynamic diaphragm 5 in above-mentioned sentinel valve comprises that edge is arranged on the membrane body 502 on valve body, the diaphragm press table 501 that doubles as sealing valve port part and diaphragm top board 503, membrane body 502 is between diaphragm press table 501 and diaphragm top board 503 and be threaded connection mechanism and diaphragm press table 501 and diaphragm top board 503 and connect as one, wherein, described diaphragm press table 501 adopts aluminium sheet.This dynamic diaphragm 5 uses aluminium sheet to replace rubber plate as diaphragm press table 501, similar through experiment showed, sealing effect and rubber plate, but in serviceability temperature far above rubber plate, thereby reached the effect of applied at elevated temperature.Polishing treatment is preferably carried out on the surface of aluminium sheet, and sealing effect is better like this.As Fig. 3, the threaded connection that connects diaphragm press table 501, membrane body 502 and diaphragm top board 503 is specially: comprise bolt 504, nut 505, locating stud 506 and pad 507, wherein, bolt 504 one end are through diaphragm top board 503, membrane body 502, diaphragm press table 501 and the rear attaching nut 505 of pad 507, then insert and relocate pin 506, thus diaphragm press table 501, membrane body 502 and diaphragm top board 503 are connected as one.
As Fig. 2, when above-mentioned sentinel valve is during as high temperature filtration deduster deashing sentinel valve, its working procedure is: the high temperature purge gas that comes from the suction port 14 of valve body 7 enters rear air cavity 12 and suction chamber 2 by gas port 13 on the one hand, enter on the other hand front air cavity 6, simultaneously, electromagnetism-gas-driving valve 21 passes into normal temperature nitrogen (control gas) to ventilating hole 17, now, dynamic diaphragm 5 both sides air pressure and upper dynamic diaphragm 1 both sides air pressure all reach balance, dynamic diaphragm 5 and upper dynamic diaphragm 1 are all set up in anterior displacement under the effect of spring separately, at this moment, dynamic diaphragm 5 seals valve port 8, upper dynamic diaphragm 1 is blocked suction chamber 2 and exhaust chamber 15, in the time will carrying out blowback, make return chamber discharge normal temperature nitrogen (control gas) by ventilating hole 17, electromagnetism-gas-driving valve 21 by electromagnetism-gas-driving valve 21, return chamber decompression, upper dynamic diaphragm 1 overcomes spring pressure and moves after return chamber, suction chamber 2 and exhaust chamber 15 and then conducting, at this moment, gas in rear air cavity 12 is discharged from exhaust port 11 rapidly, cause rear air cavity 12 decompressions, dynamic diaphragm 5 overcome spring pressure backward air cavity 12 move, dynamic diaphragm 5 is separated with valve port 8, and high temperature purge gas sprays from valve port 8, finally acts on filter core.Visible; no matter the control gas that moves forward to block suction chamber 2 and exhaust chamber 15 to dynamic diaphragm 1 on return chamber input control; or the control gas in return chamber is discharged so that move after upper dynamic diaphragm 1; all realize by the electromagnetism-gas-driving valve 21 being connected with ventilating hole 17; the control gas that debouches return chamber adopts normal temperature nitrogen; and high temperature blowback air can not enter in return chamber; like this; just can effectively protect the component of gland 16 parts; reduce again the seal point of gland 16 parts, improve thus the applied at elevated temperature performance of sentinel valve simultaneously.
Claims (4)
1. sentinel valve, comprise the valve body being formed by valve body (7) and valve gap (4), the dynamic diaphragm (5) that can move forward and backward is housed between valve body (7) and valve gap (4), in valve body (7), being provided with can be by the valve port (8) in locational dynamic diaphragm (5) sealing that moves forward, described dynamic diaphragm (5) comprises that edge is arranged on the membrane body (502) on valve body, double as diaphragm press table (501) and the diaphragm top board (503) of sealing valve port part, membrane body (502) is positioned between diaphragm press table (501) and diaphragm top board (503) and is threaded connection mechanism and diaphragm press table (501) and diaphragm top board (503) and connects as one, it is characterized in that: described diaphragm press table (501) adopts aluminium sheet.
2. sentinel valve as claimed in claim 1, is characterized in that: described surface of aluminum plate is through polishing treatment.
3. the dynamic diaphragm of sentinel valve, comprise that edge is arranged on the membrane body (502) on valve body, the diaphragm press table (501) that doubles as sealing valve port part and diaphragm top board (503), membrane body (502) is positioned between diaphragm press table (501) and diaphragm top board (503) and is threaded connection mechanism and diaphragm press table (501) and diaphragm top board (503) and connects as one, and it is characterized in that: described diaphragm press table (501) adopts aluminium sheet.
4. the dynamic diaphragm of sentinel valve as claimed in claim 3, is characterized in that: described surface of aluminum plate is through polishing treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320681449.XU CN203809752U (en) | 2013-10-31 | 2013-10-31 | Pulse valve and moving diaphragm of pulse valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320681449.XU CN203809752U (en) | 2013-10-31 | 2013-10-31 | Pulse valve and moving diaphragm of pulse valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203809752U true CN203809752U (en) | 2014-09-03 |
Family
ID=51448502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320681449.XU Expired - Lifetime CN203809752U (en) | 2013-10-31 | 2013-10-31 | Pulse valve and moving diaphragm of pulse valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203809752U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220034A (en) * | 2019-07-15 | 2019-09-10 | 上海乐臣自动化设备有限公司 | A kind of pulse valve |
-
2013
- 2013-10-31 CN CN201320681449.XU patent/CN203809752U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220034A (en) * | 2019-07-15 | 2019-09-10 | 上海乐臣自动化设备有限公司 | A kind of pulse valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140903 |