CN203082303U - Gas proportional valve - Google Patents

Gas proportional valve Download PDF

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Publication number
CN203082303U
CN203082303U CN 201320062667 CN201320062667U CN203082303U CN 203082303 U CN203082303 U CN 203082303U CN 201320062667 CN201320062667 CN 201320062667 CN 201320062667 U CN201320062667 U CN 201320062667U CN 203082303 U CN203082303 U CN 203082303U
Authority
CN
China
Prior art keywords
valve
valve base
valve seat
pressure
base
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
Application number
CN 201320062667
Other languages
Chinese (zh)
Inventor
叶超
张浙炎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHAOXING HENGDA HET CO Ltd
Original Assignee
SHAOXING HENGDA HET CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHAOXING HENGDA HET CO Ltd filed Critical SHAOXING HENGDA HET CO Ltd
Priority to CN 201320062667 priority Critical patent/CN203082303U/en
Application granted granted Critical
Publication of CN203082303U publication Critical patent/CN203082303U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a gas proportional valve which comprises an upper valve seat, a lower valve seat, a large film sheet, a small film sheet, a regulating screw, a guiding sleeve, a supporting base, a push rod, a large spring, a small spring, a sealed piston, a pressure measuring pipe and a valve cover. The upper valve seat and the lower valve seat are fixedly connected. An upper cavity is formed in the upper valve seat and a lower cavity is formed in the lower valve seat. The large film sheet is arranged between the upper valve seat and the lower valve seat. The small film sheet is fixed on the lower valve seat. The large film sheet and the small film sheet are respectively arranged on the supporting base and form a central cavity in between. The large spring is installed in the upper valve seat through the regulating screw and the guiding sleeve. The sealed piston is contained in the lower cavity of the lower valve seat. The push rod is connected between the supporting base and the sealed piston in an abutted mode. The small spring is connected between the sealed piston and the valve cover in an abutted mode. The pressure measuring pipe is arranged on the lower valve seat. The gas proportional valve performs secondary regulation on pressure of an outlet so that the proportion of air and gas can be accurately controlled, the pressure of output gas is stable and responding speed is fast.

Description

A kind of gas ratio valve
Technical field
The utility model relates to the constituent elements of a kind of industrial combustion equipment and stove cellar for storing things heating system, is specifically related to a kind of gas ratio valve, belongs to the fuel-burning equipment technical field.
Background technique
In the industrial combustion system of prior art, gas ratio valve coupled computer combustion gas ratio automatic control system is the high and energy-conservation control mode of a kind of automaticity.But because existing Proportional valve is for once regulated, the gaseous-pressure to output does not detect feedback, makes the fluctuation of output gaseous-pressure bigger, and control response is slow.
Therefore, for solving the problems of the technologies described above, necessaryly provide a kind of structure improved gas ratio valve that has, to overcome described defective of the prior art.
The model utility content
For addressing the above problem, the purpose of this utility model is to provide that a kind of cost of production is low, control response speed piece and stable gas ratio valve.
For achieving the above object, the technological scheme that the utility model is taked is: a kind of gas ratio valve, and it comprises upper valve base, lower valve base, big diaphragm, Small diaphragm-piece, adjusting screw, guide sleeve, supporting base, push rod, big spring, little spring, packed-piston, pressure-measuring pipe and valve gap; Wherein, described upper valve base and lower valve base Joint; The roof anchorage of described upper valve base has end cap, is provided with an epicoele in it; Be provided with a cavity of resorption in the described lower valve base; Described big diaphragm is between upper valve base and lower valve base; Described Small diaphragm-piece is immobilizated on the lower valve base; Described big diaphragm and Small diaphragm-piece are arranged at respectively on the supporting base, form a lumen between the two; Described big spring is installed in the upper valve base by adjusting screw, guide sleeve; Described packed-piston is contained in the cavity of resorption of lower valve base; Described push rod is connected between supporting base and the packed-piston; Described little spring is connected between packed-piston and the valve gap; Described pressure-measuring pipe is arranged on the lower valve base.
Gas ratio valve of the present utility model further is set to: described end cap ends lock pin by one and is fixed on the upper valve base.
Gas ratio valve of the present utility model further is set to: described big diaphragm is separately installed with the pressure-bearing iron plate in both sides up and down; Described big spring is connected between pressure-bearing iron plate and the guide sleeve.
Gas ratio valve of the present utility model further is set to: described adjusting screw is bolted on the guide sleeve.
Gas ratio valve of the present utility model further is set to: described lower valve base one end is provided with a fuel gas inlet, and the other end is provided with a gas outlet; Described pressure-measuring pipe can be communicated with described gas outlet and lumen.
Gas ratio valve of the present utility model also is set to: the top of described adjusting screw is provided with a vinyl cover.
Compared with prior art, the utlity model has following beneficial effect: gas ratio valve of the present utility model is regulated the outlet pressure secondary, and air and combustion gas ratio can be controlled more accurately, and the output gaseous-pressure is stable, speed of response is fast.
Description of drawings
Fig. 1 is the sectional view of gas ratio valve of the present utility model.
Embodiment
See also shown in the Figure of description 1, the utility model is a kind of gas ratio valve, and it is made up of several parts such as upper valve base 1, lower valve base 2, big diaphragm 3, Small diaphragm-piece 4, adjusting screw 5, guide sleeve 6, supporting base 7, push rod 8, big spring 9, little spring 10, packed-piston 11, pressure-measuring pipe 12 and valve gaps 13.
Wherein, described upper valve base 1 and lower valve base 2 are by the bolt Joint.The roof anchorage of described upper valve base 1 has end cap 14, and specifically, described end cap 14 ends lock pin 18 by one and is fixed on the upper valve base 1.Be provided with an epicoele 15 in the described upper valve base 1.Be provided with a cavity of resorption 16 in the described lower valve base 2.And described lower valve base 2 one ends are provided with a fuel gas inlet 21, and the other end is provided with a gas outlet 22.
Described big diaphragm 3 is between upper valve base 1 and lower valve base 2.Described Small diaphragm-piece 4 is immobilizated on the lower valve base 2, realizes the isolating seal of fuel gas pipeline.Described big diaphragm 3 and Small diaphragm-piece 4 are arranged at respectively on the supporting base 7, form a lumen 17 between the two.Described big diaphragm is separately installed with pressure-bearing iron plate 19 in both sides about in the of 3, and it bears from the pressure between air, big spring 9 and the combustion gas with hand.
Described big spring 9 is installed in the upper valve base 1 by adjusting screw 5, guide sleeve 6.Described adjusting screw 5 is bolted on the guide sleeve 6, can lifting guide sleeve 6 by regulating described adjusting screw 5, changing the pretightening force of big spring 9, thereby regulate the ratio between air and the combustion gas.Further be provided with a vinyl cover 20 in the top of described adjusting screw 5.Described big spring 9 is connected between pressure-bearing iron plate 19 and the guide sleeve 6.
Described packed-piston 11 is contained in the cavity of resorption 16 of lower valve base 2.Described push rod 8 is connected between supporting base 7 and the packed-piston 11, and can promote packed-piston 11.Described little spring 10 is connected between packed-piston 11 and the valve gap 13, and packed-piston 11 can be automatically reset.
Described pressure-measuring pipe 12 is arranged on the lower valve base 2, it can be communicated with described gas outlet 22 and lumen 17, gas outlet 22 pressure can be diverted in the lumen 17, the outlet gaseous-pressure acts on the downside of big diaphragm 3, drive supporting base 7, push rod 8, packed-piston 11 successively by big diaphragm 3, regulate the aperture of packed-piston 11 by secondary, thereby make the more stable output of gas outlet 22 pressure.
The design principle of gas ratio valve of the present utility model is as follows: epicoele 15 is introduced combustion-supporting air, and the aperture that air pressure is regulated packed-piston 11 by big diaphragm 3 plays the gas outlet pressure effect of regulating.The pressure-measuring pipe 12 of combustion gas by gas outlet 22 is diverted to the lumen 17 between big diaphragm 3 and the Small diaphragm-piece 4, the outlet gaseous-pressure acts on the downside of big diaphragm 3, regulate the aperture of packed-piston 11 by secondary, thereby make the more stable output of gas outlet 22 pressure.Regulate the adjusting screw 5 of epicoele 15, by the effect of big spring 9, can regulate the ratio between combustion-supporting air and the combustion gas, thereby satisfy the combustion atmosphere between the different combustion gas.
Above embodiment only is the preferred embodiment of this creation, not in order to limiting this creation, all in this creation spirit and principle within made any modification, be equal to replacement, improvement etc., all should be included within the protection domain of this creation.

Claims (6)

1. a gas ratio valve is characterized in that: comprise upper valve base, lower valve base, big diaphragm, Small diaphragm-piece, adjusting screw, guide sleeve, supporting base, push rod, big spring, little spring, packed-piston, pressure-measuring pipe and valve gap; Wherein, described upper valve base and lower valve base Joint; The roof anchorage of described upper valve base has end cap, is provided with an epicoele in it; Be provided with a cavity of resorption in the described lower valve base; Described big diaphragm is between upper valve base and lower valve base; Described Small diaphragm-piece is immobilizated on the lower valve base; Described big diaphragm and Small diaphragm-piece are arranged at respectively on the supporting base, form a lumen between the two; Described big spring is installed in the upper valve base by adjusting screw, guide sleeve; Described packed-piston is contained in the cavity of resorption of lower valve base; Described push rod is connected between supporting base and the packed-piston; Described little spring is connected between packed-piston and the valve gap; Described pressure-measuring pipe is arranged on the lower valve base.
2. gas ratio valve as claimed in claim 1 is characterized in that: described end cap ends lock pin by one and is fixed on the upper valve base.
3. gas ratio valve as claimed in claim 2 is characterized in that: described big diaphragm is separately installed with the pressure-bearing iron plate in both sides up and down; Described big spring is connected between pressure-bearing iron plate and the guide sleeve.
4. gas ratio valve as claimed in claim 3 is characterized in that: described adjusting screw is bolted on the guide sleeve.
5. gas ratio valve as claimed in claim 4 is characterized in that: described lower valve base one end is provided with a fuel gas inlet, and the other end is provided with a gas outlet; Described pressure-measuring pipe can be communicated with described gas outlet and lumen.
6. gas ratio valve as claimed in claim 5 is characterized in that: the top of described adjusting screw is provided with a vinyl cover.
CN 201320062667 2013-02-04 2013-02-04 Gas proportional valve Expired - Fee Related CN203082303U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320062667 CN203082303U (en) 2013-02-04 2013-02-04 Gas proportional valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320062667 CN203082303U (en) 2013-02-04 2013-02-04 Gas proportional valve

Publications (1)

Publication Number Publication Date
CN203082303U true CN203082303U (en) 2013-07-24

Family

ID=48828141

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320062667 Expired - Fee Related CN203082303U (en) 2013-02-04 2013-02-04 Gas proportional valve

Country Status (1)

Country Link
CN (1) CN203082303U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103453192A (en) * 2013-09-17 2013-12-18 宁波合生制动科技有限公司 Constant pressure full-closed reducing valve
CN104696557A (en) * 2013-12-04 2015-06-10 上海宇航系统工程研究所 Pressure adjuster

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103453192A (en) * 2013-09-17 2013-12-18 宁波合生制动科技有限公司 Constant pressure full-closed reducing valve
CN104696557A (en) * 2013-12-04 2015-06-10 上海宇航系统工程研究所 Pressure adjuster
CN104696557B (en) * 2013-12-04 2017-03-01 上海宇航系统工程研究所 A kind of pressure regulator

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130724

Termination date: 20180204

CF01 Termination of patent right due to non-payment of annual fee