CN206861022U - Boiler combustion engine pneumatic operated valve - Google Patents
Boiler combustion engine pneumatic operated valve Download PDFInfo
- Publication number
- CN206861022U CN206861022U CN201720439207.8U CN201720439207U CN206861022U CN 206861022 U CN206861022 U CN 206861022U CN 201720439207 U CN201720439207 U CN 201720439207U CN 206861022 U CN206861022 U CN 206861022U
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- China
- Prior art keywords
- diaphragm
- chamber
- relief
- piston
- briquetting
- 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 provides boiler combustion engine pneumatic operated valve, and relief chamber is opened up in valve body, and the opening that piece is assemblied in valve body forms diaphragm chamber, and the bottom of diaphragm chamber is connected with the top of relief chamber by damping hole；The upper end of push rod is connected with top cover, and lower end is connected with briquetting, and relief spring is assembled between the bottom of push rod and briquetting, and briquetting is fixedly connected with diaphragm；The piston end of piston valve core is assemblied in relief chamber, and is connected by the bottom of back-moving spring and valve body；The closure end of piston valve core is stretched into diaphragm chamber, is fixedly connected with briquetting；When air inlet is without air inlet, the piston end for stating piston valve core is set valve port to be present with air inlet, when inlet charge, high pressure gas enters in relief chamber, and high pressure gas produces upward thrust to diaphragm by damping hole entrance diaphragm room, briquetting, piston valve core are by upward thrust, back-moving spring is stretched, pulls the piston valve core moving axially upwards along relief chamber, uses outlet pressure decline.
Description
Technical field
It the utility model is related to the gas decompression technology of boiler flue gas, more particularly to boiler combustion engine pneumatic operated valve.
Background technology
In existing gas engine, by setting composite membrane valve on admission line, combustion can be entered to adjust fuel gas
The air inflow of mechanism of qi.After being set to the compression spring of composite membrane valve, the gas outlet of valve can ensure, with a certain flow, to press
Set pressure and carry out gas output.But existing composite membrane valve, mainly pressed by compression spring in diaphragm side
Dynamic balance, therefore serve the effect of decompression, in above-mentioned decompression process, diaphragm be fixed on valve high pressure chest and base pressure chamber it
Between.In the presence of compression spring, deformed to side.It follows that in existing pressure-reducing valve, diaphragm only passes through compression spring
Control is balanced, causes diaphragm to be easily deformed, the effect of easing stress using gas after a period of time is weaker.
Utility model content
To solve above-mentioned the problems of the prior art, the technical scheme that the utility model is provided is as follows：
Boiler combustion engine pneumatic operated valve, including valve body, top cover, diaphragm chamber, piston valve core, relief chamber and push rod；In the valve body
Relief chamber is opened up, the top cover is fixedly connected with the opening of the valve body, and the opening that diaphragm is assemblied in the valve body forms film
Piece room, the bottom of the diaphragm chamber are connected with the top of the relief chamber by damping hole, are opened up in the side of the relief chamber
Air inlet, opposite side open up gas outlet；The upper end of the push rod is threadedly coupled with the top cover, and lower end is connected with briquetting, described
Relief spring is assembled between the bottom of push rod and briquetting, the briquetting is fixedly connected with the diaphragm of the diaphragm chamber；The piston
The piston end of valve element is assemblied in the relief chamber, and is connected by back-moving spring with the bottom of the valve body；The piston valve
The closure end of core is stretched into the diaphragm chamber, is fixedly connected with the briquetting；When the air inlet is without air inlet, make the piston
There is valve port in the piston end of valve element, when the inlet charge, high pressure gas enters in the relief chamber, high with the air inlet
Calm the anger by damping hole entrance diaphragm room, upward thrust is produced to diaphragm, the briquetting, the piston valve core are by upward
Thrust, the back-moving spring is stretched, the piston valve core moving axially upwards along the relief chamber is pulled, to the air inlet
Mouth closure, declines the gas outlet pressure.
In a preferred embodiment, the surface of the push rod is fixedly connected with platform, and the quantity of the relief spring is
Two, between the bottom of the connected unit and the briquetting assemble a relief spring, the top of the push rod with it is described
Assemble another relief spring in the top of connected unit.Two relief springs are set in order that the pressure of diaphragm side adjusts more
Add stabilization.
In a preferred embodiment, the side wall of the relief chamber opens up multiple guide grooves, the length of the guide groove
Spend axially in parallel with the relief chamber, the multiple guide pads of surface setting of the piston end of the piston valve core, the guide pad
It is assemblied in the guide groove.
In a preferred embodiment, in addition to regulating hand wheel of pressure, the top of the regulating hand wheel of pressure and the push rod are consolidated
Fixed connection, the length for adjusting the push rod by rotating regulating hand wheel of pressure and screwing in the top cover.
In a preferred embodiment, the diaphragm chamber opens up overfall, the overfall by the diaphragm chamber with
The side wall connection of the gas outlet.
In a preferred embodiment, in addition to filtering packing ring, the filtering packing ring are fixed on the valve body, and
Positioned at the front end of the air inlet.
The beneficial effects of the utility model are：
The pressure reduction structure combined using piston with diaphragm, in the structure, after gases at high pressure enter relief chamber, gases at high pressure
Diaphragm chamber is entered back into top land by valve port, when the gas pressure in diaphragm chamber and atmospheric pressure sum are more than entrance
During high pressure, make back-moving spring and relief spring while deform, piston closing valve port, so that valve port is closed, so that gas outlet
Pressure declines.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of sectional view of embodiment of boiler combustion engine pneumatic operated valve；
Fig. 2 is the sectional view of boiler combustion engine pneumatic operated valve another embodiment.
Fig. 3 is the structural representation of relief chamber；
Fig. 4 is the structural representation of boiler combustion engine pneumatic operated valve another embodiment；
Fig. 5 is the structural representation of boiler combustion engine pneumatic operated valve another embodiment；
Embodiment
Below in conjunction with accompanying drawing of the present utility model, the technical solution of the utility model is clearly and completely described,
Obviously, described embodiment is only the utility model part of the embodiment, rather than whole embodiments.Based on this practicality
Embodiment in new, the every other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example is applied, belongs to the scope of the utility model protection.
With reference to Fig. 1, boiler combustion engine pneumatic operated valve provided by the utility model, the top of valve body 1 opens up cavity 10, and bottom, which opens up, to be subtracted
Press chamber 11.The periphery of the opening sidewalls of cavity 10 and diaphragm 2 of valve body 1 is fixed, and makes shape between the cavity 10 of diaphragm 2 and valve body opening
Into diaphragm chamber 100.By external screw thread fixed roof 3 in the opening of cavity 10 of valve body, make to form adjustment between diaphragm 2 and top cover 3
Room 101.The bottom of diaphragm chamber 100 is connected with by damping hole 12 with the top of relief chamber 11.One side wall of relief chamber 11 opens up
Air inlet 110, another side wall open up gas outlet 111.The side wall of the bottom of valve body 1 opens up inlet channel 13, outlet passageway 14.Air inlet
Passage 13 is connected with air inlet 110, and outlet passageway 14 is connected with gas outlet 111.The center of top cover 3 opens up screwed hole 30.
It is connected through a screw thread between the upper end of push rod 6 and screwed hole 30, the lower end of push rod 6 is welded with briquetting 7.The lower external face of push rod 6
Relief spring 8 is assembled between briquetting 7.The bottom of briquetting 7 is fixedly connected with diaphragm 2.Piston valve core 4 piston end 41 assembling with
In relief chamber 11, piston end 41 can slide up and down along the side wall of relief chamber 11.The bottom of piston end 41 and the bottom surface of valve body 1
Between assemble back-moving spring 5.The closure end 42 of piston valve core 4 is extended upwardly into diaphragm chamber 100, and with the clamping of briquetting 7.When without gas
When body enters air inlet 110, there is valve port 40 in piston end 41 and the air inlet 110 of piston valve core 4.When the fuel gas of high pressure leads to
When crossing inlet channel 13 into air inlet 110, high pressure gas enters in relief chamber 11, and high pressure gas passes through the entrance diaphragm room of damping hole 12
100, upward thrust is produced to diaphragm 2.Gases at high pressure and then upward thrust is produced to briquetting 7, piston valve core 4.Piston valve
Core 4 stretches back-moving spring 5 during upward motion；Meanwhile briquetting 7 is during upward motion, relief spring 8
It is squeezed.Back-moving spring 5 and relief spring 8 produce downward thrust to diaphragm 2 simultaneously, and then pull the work of piston valve core 4
The moving axially upwards along relief chamber 11 of end 41 is filled in, air inlet 110 is blocked, closes valve port 40, the pressure of gas outlet 111
Decline.
In order to ensure the stability of air pressure adjustment, in one embodiment, the middle part surface of push rod 6 is fixedly connected with platform
60.Relief spring 81 is assembled between the bottom of connected unit 60 and briquetting 7；The top of the top of push rod 6 and connected unit 60 it
Between assemble relief spring 82.By setting two relief springs, for gases at high pressure when promoting diaphragm 2, diaphragm 2 passes pressure simultaneously
Pass two relief springs so that the deformation of two relief springs is smaller, so as to ensure that the recovery capability of relief spring, favorably
In adjustment gas pressure.
Because motion frequency of the piston valve core in relief chamber is higher, in one embodiment, the side wall of relief chamber 11
Open up six guide grooves 112.The length direction of guide groove 112 is axially in parallel with relief chamber 11.The piston end 41 of piston valve core 4
Surface set six guide pads 410.Each guide pad 410 is assemblied in guide groove 112.When piston end 41 is in relief chamber 11
During interior slip, due to the restriction effect of guide groove 112, the guide pad 410 on the surface of piston end 41 can only be along guide groove about 112
Slide, so as to ensure that the accuracy of the piston valve core direction of motion, avoid piston valve core from occurring to block in motion process or block
Tightly, effect of easing stress is influenceed.
In one embodiment, in addition to regulating hand wheel of pressure 9.The rotating shaft of the lower end of regulating hand wheel of pressure 9 and the top card of push rod 6
Connect.By rotating regulating hand wheel of pressure 9, the length for being threaded into screwed hole 30 in top cover 3 on adjustment push rod 6 surface.
In order to avoid gas pressure it is too high when, cause diaphragm 2 to damage, in one embodiment, the side wall of diaphragm chamber 100
Open up overfall 1001.Overfall 1001 connects diaphragm chamber 100 with the side wall of outlet passageway 14.When in entrance diaphragm room 100
Gas pressure it is too high when, fraction by overfall 1001 flow into outlet passageway 14, so as to avoid hypertonia to diaphragm 2
Caused large impact.
In order to avoid the impurity in fuel gas enters the utility model, valve inner is caused to block, in a kind of embodiment party
In formula, in addition to filtering packing ring 15.Filter packing ring 15 to fix in the side wall of inlet channel 13, the filtering packing ring 15 is located at air inlet
The front end of mouth 110, can prevent it from entering valve inner the contaminant filter in fuel gas.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses
Or replace, it should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with the power
The protection domain that profit requires is defined.
Claims (6)
1. boiler combustion engine pneumatic operated valve, it is characterised in that：Including valve body, top cover, diaphragm chamber, piston valve core, relief chamber and push rod；Institute
State and relief chamber is opened up in valve body, the top cover is fixedly connected with the opening of the valve body, and diaphragm is assemblied in the opening of the valve body
Place forms diaphragm chamber, and the bottom of the diaphragm chamber is connected with the top of the relief chamber by damping hole, in the relief chamber
Side opens up air inlet, and opposite side opens up gas outlet；The upper end of the push rod is threadedly coupled with the top cover, and lower end connects with briquetting
Connect, relief spring is assembled between the bottom of the push rod and briquetting, the briquetting is fixedly connected with the diaphragm of the diaphragm chamber；Institute
The piston end for stating piston valve core is assemblied in the relief chamber, and is connected by back-moving spring with the bottom of the valve body；It is described
The closure end of piston valve core is stretched into the diaphragm chamber, is fixedly connected with the briquetting；When the air inlet is without air inlet, make institute
There is valve port in the piston end and the air inlet for stating piston valve core, when the inlet charge, high pressure gas enters the decompression
Intracavitary, high pressure gas produce upward thrust to diaphragm by damping hole entrance diaphragm room, the briquetting, the piston valve core by
To upward thrust, the back-moving spring is stretched, pulls the piston valve core moving axially upwards along the relief chamber, it is right
The air inlet closure, declines the gas outlet pressure.
2. boiler combustion engine pneumatic operated valve according to claim 1, it is characterised in that：The surface of the push rod is fixedly connected with platform,
The quantity of the relief spring is two, and a relief spring is assembled between the bottom of the connected unit and the briquetting,
Another relief spring is assembled at the top of the push rod and the top of the connected unit.
3. boiler combustion engine pneumatic operated valve according to claim 1 or 2, it is characterised in that：The side wall of the relief chamber opens up more
Individual guide groove, the length direction of the guide groove is axially in parallel with the relief chamber, the table of the piston end of the piston valve core
Face sets multiple guide pads, and the guide pad is assemblied in the guide groove.
4. boiler combustion engine pneumatic operated valve according to claim 3, it is characterised in that：Also include regulating hand wheel of pressure, the pressure regulation hand
The length that wheel adjusts the push rod and screw in the top cover with being fixedly connected at the top of the push rod, by rotating regulating hand wheel of pressure.
5. boiler combustion engine pneumatic operated valve according to claim 4, it is characterised in that：The diaphragm chamber opens up overfall, described
Overfall connects the diaphragm chamber with the side wall of the gas outlet.
6. boiler combustion engine pneumatic operated valve according to claim 5, it is characterised in that：Also include filtering packing ring, the filter pad
Circle is fixed on the valve body, and positioned at the front end of the air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720439207.8U CN206861022U (en) | 2017-04-25 | 2017-04-25 | Boiler combustion engine pneumatic operated valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720439207.8U CN206861022U (en) | 2017-04-25 | 2017-04-25 | Boiler combustion engine pneumatic operated valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206861022U true CN206861022U (en) | 2018-01-09 |
Family
ID=60817547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720439207.8U Expired - Fee Related CN206861022U (en) | 2017-04-25 | 2017-04-25 | Boiler combustion engine pneumatic operated valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206861022U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541964A (en) * | 2019-08-27 | 2019-12-06 | 武汉九欣烨盛能源科技有限公司 | Pneumatic valve for boiler burner |
| CN110553085A (en) * | 2019-08-27 | 2019-12-10 | 武汉九欣烨盛能源科技有限公司 | Pneumatic valve structure of boiler gas turbine |
-
2017
- 2017-04-25 CN CN201720439207.8U patent/CN206861022U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541964A (en) * | 2019-08-27 | 2019-12-06 | 武汉九欣烨盛能源科技有限公司 | Pneumatic valve for boiler burner |
| CN110553085A (en) * | 2019-08-27 | 2019-12-10 | 武汉九欣烨盛能源科技有限公司 | Pneumatic valve structure of boiler gas turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180109 Termination date: 20200425 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |