CN201059355Y - Pneumatic emptying valve - Google Patents
Pneumatic emptying valve Download PDFInfo
- Publication number
- CN201059355Y CN201059355Y CNU2007200710468U CN200720071046U CN201059355Y CN 201059355 Y CN201059355 Y CN 201059355Y CN U2007200710468 U CNU2007200710468 U CN U2007200710468U CN 200720071046 U CN200720071046 U CN 200720071046U CN 201059355 Y CN201059355 Y CN 201059355Y
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- CN
- China
- Prior art keywords
- valve body
- valve
- pneumatic
- piston
- vent
- 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 - Fee Related
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Abstract
The utility model discloses a pneumatic blow valve, comprising a valve seat and a valve body, wherein, the valve body consists of an upper valve body and a lower valve body. An air-bleed hole is arranged on the valve wall of the lower valve body. A valve core is arranged on the valve seat in the lower valve body. A blowhole is arranged in the center of the valve core. A pneumatic switch device which is covered on the blowhole is arranged in the upper valve body. The utility model has the advantages of simple structure, convenience for arrangement and use, good air tightness and safety and reliability and is widely used in work pipelines, such as sewage treatment, electric power transmission, desulfurization and dust removal in an electric power plant, and chemical industry.
Description
Technical field
The utility model relates to a kind of pneumatic valve, relates in particular to a kind of blower fan, the pneumatic atmospheric valve during used pipeline soft start such as compressor.
Background technique
The general atmospheric valve that adopts mostly is manual or automatically controlled, must open atmospheric valve earlier, treats that blower fan and compressor operating steadily closing the back, thereby the blower fan when the protection load starts is not damaged.Though kind is a lot, convenient inadequately when in use mostly, and install complicated.
The model utility content
The technical problems to be solved in the utility model is the defective that overcomes prior art, provides a kind of and need not to open in advance, installation and pneumatic atmospheric valve easy to use.
For solving the problems of the technologies described above, the utility model provides a kind of pneumatic atmospheric valve, comprise valve seat and valve body, described valve body is made up of upper valve body and following valve body, on the valve wall of described valve body down, offer vent hole, be provided with spool on the valve seat in described down valve body, have vent, be provided with the Pneumatic unlocking and closing apparatus that covers described vent in the described upper valve body in the central authorities of described spool.
Described Pneumatic unlocking and closing apparatus comprises the piston that is arranged in the described upper valve body, described piston radially slides in upper valve body, the lower end of described piston feeds described valve body down, be equipped with in the lower end of described piston one with the suitable sealing cover of described vent.The upper end of described piston is connected with Returnning spring, and the other end of Returnning spring is connected with the upper end of upper valve body, is communicated with air pipe on the valve wall on upper valve body top, and the other end of this air pipe is connected with the blower fan main wind passage.
Described upper valve body is the valve rubber air bag.Be provided with the adjusting bolt in the upper end of described upper valve body.
Owing to adopt said structure, the utlity model has following beneficial effect:
1, simple in structure;
2, installation and easy to use;
3, tightness is good;
4, safe and reliable.
Description of drawings
Fig. 1 is the structural representation of the installment state of the pneumatic atmospheric valve of the utility model;
Fig. 2 is the parts explosion of the pneumatic atmospheric valve of the utility model.
Mark the following drawings mark thereon in conjunction with the accompanying drawings:
The 1-valve seat; The 2-upper valve body; Valve body under the 3-; The 4-vent hole; The 5-vent; The 6-main wind passage;
7-threeway flange; The 8-ventilation flue; The 9-piston; The 10-sealing cover; The 11-Returnning spring;
The 12-air pipe; 13-regulates bolt; The 14-one-way valve; The 15-spool; The 16-seal ring;
The 17-stuffing box gland; The 18-pressing plate.
Embodiment
As shown in Figure 1 and Figure 2, the pneumatic atmospheric valve of the utility model comprises valve seat 1 and valve body, and described valve body is made up of upper valve body 2 and following valve body 3, and upper valve body 2 is the valve rubber air bag.Offer vent hole 4 on the valve wall of following valve body 3, be provided with spool 15 on the valve seat 1 in following valve body 3, the central authorities of spool 15 offer vent 5, are provided with seal ring 16 at spool 15 and 1 of valve seat, are with stuffing box gland 17 outside the valve rubber air bag.Valve seat 1 docks with the threeway flange 7 of blower fan main wind passage 6, and this vent 5 is connected with ventilation flue 8 in the threeway flange 7, is provided with the Pneumatic unlocking and closing apparatus that covers vent 5 in the upper valve body 2.
Wherein, Pneumatic unlocking and closing apparatus comprises the piston 9 that is arranged in the upper valve body 2, and piston 9 radially slides in upper valve body 2, in the logical valve body 3 down in the lower end of piston 9, be equipped with in the lower end of piston 9 one with the suitable sealing cover 10 of vent 5.The upper end of piston 9 is connected with a Returnning spring 11, and the other end of Returnning spring 11 is connected with the pressing plate 18 of the upper end that is located at upper valve body 2, is communicated with air pipe 12 on the valve wall on upper valve body 2 tops, and the other end of this air pipe 12 is connected with blower fan main wind passage 6.
Industrial and mineral source of the gas in use, after the blower fan starting, gas enters starting valve through main pipe.Wherein a part of gas enters in the atmosphere by the vent hole of following valve body, another part gas enters valve rubber air bag (upper valve body 2) by air pipe, thereby rubber pneumatic bag swelling pressure increase promotion piston moves to the valve seat direction at short notice, make the sealing cover and the valve seat vent 5 of piston lower end compress fully and seal, Returnning spring 11 also compresses and lives the valve rubber air bag by the valve core caping, thereby makes and compress fully between valve rubber and the pressing plate and seal.This moment, valve was in running order, and gas also enters in the industrial and mineral fully.
As shown in Figure 1, when blower fan was opened, one-way valve 14 was equipped with the main wind passage pressure of pneumatic atmospheric valve one side greater than its opposite side main wind passage pressure, i.e. P＞Px＞0 o'clock, and one-way valve 14 is closed, and pneumatic atmospheric valve is started working, and pneumatic valve cuts out gradually; When Px＞P, one-way valve 14 is opened, and gets through the main wind passage of one-way valve 14 both sides.
Pneumatic atmospheric valve is installed in the blower fan outlet, works the time of closing and can regulate.Be provided with the adjusting bolt in the upper end of described upper valve body 2.Regulating bolt 13 left rotation and right rotation controls air bag intake velocity and valve and base and rises and close highly.The valve body installation form is a wafer type, and suitable horizontal is vertically installed.As blowing-out machine after the first off-load of case history need, only need on the interface of valve, connect normally closed solenoid valve and get final product.
The pneumatic atmospheric valve compact structure of the utility model, volume is little, installs simple and convenient, elegant in appearance.The mechanical structure that adopts need not will realize action by electrical equipment as electric valve that use tightness good, safety reliability is good.After using the utility model, can the bringing onto load across-the-line starting and can not damage blower fan etc. for the source of the gas that starts in the industrial and mineral such as blower fan and compressor etc.Thereby the operation that makes industrial and mineral is simpler safer.The highly sensitive course of action time of the utility model is short, and whole action only needs several seconds or tens of second.Operate steadily, the life-span is long, keeps simple.
It should be noted that at last: above embodiment only in order to the explanation the utility model and and the described technological scheme of unrestricted the utility model; Therefore, although this specification has been described in detail the utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from the technological scheme and the improvement thereof of spirit and scope of the present utility model, and it all should be encompassed in the claim scope of the present utility model.
Claims (5)
1. pneumatic atmospheric valve, comprise valve seat and valve body, described valve body is made up of upper valve body and following valve body, it is characterized in that: on the valve wall of described valve body down, offer vent hole, be provided with spool on the valve seat in described valve body down, central authorities at described spool have vent, are provided with the Pneumatic unlocking and closing apparatus that covers described vent in the described upper valve body.
2. pneumatic atmospheric valve according to claim 1, it is characterized in that: described Pneumatic unlocking and closing apparatus comprises the piston that is arranged in the described upper valve body, described piston radially slides in upper valve body, the lower end of described piston feeds described valve body down, be equipped with in the lower end of described piston one with the suitable sealing cover of described vent.
3. pneumatic atmospheric valve according to claim 2 is characterized in that: the upper end of described piston is connected with a Returnning spring, and the other end of Returnning spring is connected with the pressing plate of the upper end of upper valve body, is communicated with air pipe on the valve wall on upper valve body top.
4. pneumatic atmospheric valve according to claim 1 is characterized in that: described upper valve body is the valve rubber air bag.
5. pneumatic atmospheric valve according to claim 1 is characterized in that: be provided with the adjusting bolt in the upper end of described upper valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200710468U CN201059355Y (en) | 2007-06-14 | 2007-06-14 | Pneumatic emptying valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200710468U CN201059355Y (en) | 2007-06-14 | 2007-06-14 | Pneumatic emptying valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201059355Y true CN201059355Y (en) | 2008-05-14 |
Family
ID=39407825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200710468U Expired - Fee Related CN201059355Y (en) | 2007-06-14 | 2007-06-14 | Pneumatic emptying valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201059355Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620038A (en) * | 2011-01-26 | 2012-08-01 | 川宝科技股份有限公司 | Piston type airtight device |
| CN114623242A (en) * | 2022-03-09 | 2022-06-14 | 精效悬浮(苏州)科技有限公司 | Emptying valve structure of centrifugal blower |
-
2007
- 2007-06-14 CN CNU2007200710468U patent/CN201059355Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620038A (en) * | 2011-01-26 | 2012-08-01 | 川宝科技股份有限公司 | Piston type airtight device |
| CN114623242A (en) * | 2022-03-09 | 2022-06-14 | 精效悬浮(苏州)科技有限公司 | Emptying valve structure of centrifugal blower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |