CN208719475U - A kind of pressure balance control valve and mixed gas proportioner - Google Patents
A kind of pressure balance control valve and mixed gas proportioner Download PDFInfo
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- CN208719475U CN208719475U CN201820928229.5U CN201820928229U CN208719475U CN 208719475 U CN208719475 U CN 208719475U CN 201820928229 U CN201820928229 U CN 201820928229U CN 208719475 U CN208719475 U CN 208719475U
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Abstract
A kind of pressure balance control valve and mixed gas proportioner disclosed by the utility model, including valve body are provided with control chamber, First pressure chamber and second pressure chamber in the valve body；The control gas input being connected with control chamber is provided on the valve body；Separated between the control chamber and First pressure chamber by flexible sheet；It is connected between the First pressure chamber and second pressure chamber by via hole, second pressure is intracavitary to be movably set with sealing block, it is provided with the elastic component for being intended to force sealing block to move up and block via hole below sealing block, is connected between the sealing block and flexible sheet by connecting rod.The change that the equal characteristic of existing pressure balance control valve output pressure is passed through structure by the utility model, so that the pressure of the gas of output differs, the pressure of i.e. auxiliary gas is greater than the pressure of main gas, the flowing of gas main so greatly reduces the inhibition that plays of entrance of auxiliary gas, mixes smooth at threeway of winner's gas and auxiliary gas.
Description
Technical field
The utility model relates to gas mixing technology field more particularly to a kind of pressure balance control valve and mixed gas
Proportioner.
Background technique
In welding and other gas shield fields, needs to use multicomponent gas protection, improve operation quality, need two kinds
Or a variety of pure gas match into mixed gas by the ratio of the required, existing frequently-used matching method is volumetric method proportion, also
Be discharge method proportion gas, i.e., respectively by valve control pure gas flow, make enter mixing vessel gas flow at
Desired ratio obtains required gas componant, it can be achieved that continuous uninterrupted to keep the volume of gas proportional in a reservoir
Proportion.
As shown in Figure 1, mixed gas proportioner includes that main gas air inlet pipeline 1-1, auxiliary gas air inlet pipeline 1-2 and gaseous mixture are defeated
Pipeline 1-4 out, by T-type triple valve 1-5 connection between three, wherein main gas air inlet pipeline 1-1 and mixture output tube road 1-4
On between same, auxiliary gas air inlet pipeline 1-2 is at right angles arranged with mixture output tube road 1-4, main gas air inlet pipeline 1-1
Pressure balance control valve 1-3 is provided between auxiliary gas air inlet pipeline 1-2, the function of existing pressure balance control valve 1-3 is
In order to which the pressure in main gas air inlet pipeline 1-1 and auxiliary gas air inlet pipeline 1-2 is adjusted to identical state, but if main gas into
If air pipe 1-1 is identical as the pressure in auxiliary gas air inlet pipeline 1-2, due to main gas air inlet pipeline 1-1 and mixture output tube
Circulation between the 1-4 of road is more unimpeded compared to the circulation between auxiliary gas air inlet pipeline 1-2 and mixture output tube road 1-4, therefore
If pressure is identical, certain inhibition can be generated to entering for the auxiliary gas in auxiliary gas air inlet pipeline 1-2, and then influence
The proportion speed of gas.
Utility model content
The purpose of this utility model is that in place of avoiding the deficiencies in the prior art, provide a kind of pressure balance control valve and
Mixed gas proportioner, to effectively solve the shortcomings of the prior art.
To achieve the above object, the technical solution that the utility model is taken are as follows: a kind of pressure balance control valve, including valve
Body is provided with control chamber, First pressure chamber and second pressure chamber in the valve body；
The control gas input being connected with control chamber is provided on the valve body；
Separated between the control chamber and First pressure chamber by flexible sheet；
Be connected between the First pressure chamber and second pressure chamber by via hole, second pressure is intracavitary be movably set with it is close
Block is sealed, the elastic component for being intended to force sealing block to move up and block via hole, the sealing block are provided with below sealing block
It is connect between flexible sheet by connecting rod；
The gas outlet being connected with the First pressure chamber is provided on the valve body；
The air inlet being connected with the second pressure chamber is provided on the valve body.
Further, the connecting rod is located in via hole.
Further, the First pressure chamber and the contact area of flexible sheet are less than the contact surface of control chamber and flexible sheet
Product.
Further, the elastic component is spring.
Further, the outer ring of the via hole is surrounded with sealing convex edge, and the sealing block is resisted against on sealing convex edge.
Further, cooperation sealing convex edge is provided with gasket on the sealing block.
Further, the control gas input is that the control gas entrance being arranged on valve body or control gas are defeated
Entering end includes that the auxiliary gas channel on valve body and the intercommunicating pore for being connected to auxiliary gas channel and control chamber is arranged in left and right perforation.
A kind of mixed gas proportioner with above-mentioned pressure balance control valve, including the input of main gas intake line, auxiliary gas
Pipeline and mixed gas output pipe, main gas intake line, auxiliary gas intake line and mixed gas output pipe pass through three
Lead to and connects；
When controlling gas input is the control gas entrance being arranged on valve body, set on the auxiliary gas intake line
It is equipped with control piper, control piper is connected to by controlling gas entrance with control chamber；
The pressure balance control valve is arranged on main gas air inlet pipeline by air inlet and gas outlet.
When control gas input includes that left and right penetrates through the auxiliary gas channel being arranged on valve body and for being connected to auxiliary gas channel
When with the intercommunicating pore of control chamber, the pressure balance control valve is arranged on main gas air inlet pipeline by air inlet and gas outlet；
The pressure balance control valve is arranged on auxiliary gas intake line by the auxiliary gas channel.
The above-mentioned technical proposal of the utility model have the advantages that the utility model it is creative by existing pressure
The equal characteristic of poor balance control valve output pressure differs the pressure of the gas of output by the change of structure, i.e., auxiliary
The pressure of gas is greater than the pressure of main gas, cooperates the structure of threeway in this way, and the obstruction that the entrance of auxiliary gas is played in the flowing of main gas is made
With greatly reducing, mix smooth at threeway of winner's gas and auxiliary gas.
Detailed description of the invention
Fig. 1 is mixed gas proportioner structural schematic diagram in the prior art；
Fig. 2 is the first structural schematic diagram of the utility model embodiment pressure balance control valve；
Fig. 3 is second of structural schematic diagram of the utility model embodiment pressure balance control valve；
Fig. 4 is the mixed gas proportioner with the pressure balance control valve in Fig. 2；
Fig. 5 is the mixed gas proportioner with the pressure balance control valve in Fig. 3.
Specific embodiment
The embodiments of the present invention is described in further detail with reference to the accompanying drawings and examples.Following embodiment
For illustrating the utility model, but cannot be used to limit the scope of the utility model.
In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more；Term
The orientation of the instructions such as "upper", "lower", "left", "right", "inner", "outside", " front end ", " rear end ", " head ", " tail portion " or position are closed
System is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, rather than
The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot
It is construed as a limitation of the present invention.In the description of the present invention, it should be noted that unless otherwise specific regulation
And restriction, term " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediary can also be passed through
It is indirectly connected.For the ordinary skill in the art, above-mentioned term can be understood in the present invention with concrete condition
Concrete meaning.
As Figure 2-3, a kind of pressure balance control valve described in the present embodiment, including valve body 1 are provided in valve body 1
Control chamber 2, First pressure chamber 3 and second pressure chamber 4；
The control gas input being connected with control chamber 2 is provided on valve body 1；
Separated between control chamber 2 and First pressure chamber 3 by flexible sheet 5；
It is connected between First pressure chamber 3 and second pressure chamber 4 by via hole 6, is movably set in second pressure chamber 4 close
Block 7 is sealed, is provided with the elastic component 8 for being intended to force sealing block 7 to move up and block via hole 6 below sealing block 7, is sealed
It is connected between block 7 and flexible sheet 5 by connecting rod 19；
The gas outlet 9 being connected with First pressure chamber 3 is provided on valve body 1；
The air inlet 10 being connected with second pressure chamber 4 is provided on valve body 1.
Connecting rod 19 is located in via hole 6.
First pressure chamber 3 and the contact area of flexible sheet 5 are less than the contact area of control chamber 2 and flexible sheet 5.
Elastic component 8 is spring.
The outer ring of via hole 6 is surrounded with sealing convex edge 11, and sealing block 7 is resisted against on sealing convex edge 11.
Cooperation sealing convex edge setting 11 has gasket on sealing block 7.
Controlling gas input is the control gas entrance 12 being arranged on valve body 1, or control gas input packet
Include the auxiliary gas channel 13 that left and right perforation is arranged on valve body 1 and the intercommunicating pore 14 for being connected to auxiliary gas channel 13 and control chamber 2.
As illustrated in figures 4-5, a kind of mixed gas proportioner with above-mentioned pressure balance control valve, including main gas input pipe
Road 15, auxiliary gas intake line 16 and mixed gas output pipe 17, main gas intake line 15, auxiliary gas intake line 16 and mixed
Gas export line 17 is closed to connect by threeway 18；
As shown in figure 4, auxiliary gas is defeated when controlling gas input is the control gas entrance 12 being arranged on valve body 1
Enter and be provided with control piper 25 on pipeline 16, control piper 25 is connected to by controlling gas entrance 12 with control chamber 2；
Pressure balance control valve is arranged on main gas air inlet pipeline by air inlet 10 and gas outlet 9.
As shown in figure 5, when control gas input includes the auxiliary gas channel 13 and be used for that left and right perforation is arranged on valve body 1
When being connected to auxiliary gas channel 13 and the intercommunicating pore 14 of control chamber 2, pressure balance control valve is arranged by air inlet 10 and gas outlet 9
On main gas intake line 15；
Pressure balance control valve is arranged on auxiliary gas intake line 16 by auxiliary gas channel 13.
In Fig. 4-5,20 be filter, and 21 be inlet non return check valve, and 22 be main gas control valve, gas control valve, 24 are supplemented by 23
Auxiliary gas concentration controls needle-valve.
The working principle of the utility model are as follows: assuming that the pressure in main gas intake line 15 is 0.8MPa, auxiliary gas input pipe
Pressure in road 16 is 0.4MPa, and a part of auxiliary gas in auxiliary gas intake line 16 is filled into control chamber 2 by control piper 25
In, and have pressure downward to flexible sheet 5, the pressure overcome the elastic force of spring push sealing block 7 move down and
Via hole 6 is opened, main gas is filled into First pressure chamber 3, and the elastic force of the pressure of main gas, the pressure of auxiliary gas and spring makes elasticity
Diaphragm 5 is in equilibrium state, and the pressure of main gas drops to 0.4MPa by 0.8MPa to reach and put down with auxiliary gas phase in theoretical situation
The state of weighing apparatus, but according to the discharge characteristic of pressure reducer, when gaseous mixture output, main gas output pressure has certain decline,
Decline about 0.1-0.2MPa, therefore the pressure exported in gas outlet 9 is less than 0.4MPa, as a result, convenient for main gas and auxiliary gas in Y-type three way type
The smooth mixing at place.
Needle-valve 24 is controlled by auxiliary gas concentration to control the flow of auxiliary gas at work, and then controls auxiliary gas and main gas
Ratio.
The embodiments of the present invention are given for the purpose of illustration and description, and are not exhaustively or to incite somebody to action
The utility model is limited to disclosed form.Many modifications and variations are aobvious and easy for the ordinary skill in the art
See.Embodiment was chosen and described in order to better illustrate the principle and practical application of the utility model, and makes this field
Those of ordinary skill it will be appreciated that the utility model to designing various embodiments suitable for specific applications with various modifications.
Claims (10)
1. a kind of pressure balance control valve, it is characterised in that: including valve body, control chamber, first pressure are provided in the valve body
Chamber and second pressure chamber；
The control gas input being connected with control chamber is provided on the valve body；
Separated between the control chamber and First pressure chamber by flexible sheet；
It is connected between the First pressure chamber and second pressure chamber by via hole, second pressure is intracavitary to be movably set with sealing
Block, is provided with the elastic component for being intended to force sealing block to move up and block via hole below sealing block, the sealing block with
It is connected between flexible sheet by connecting rod；
The gas outlet being connected with the First pressure chamber is provided on the valve body；
The air inlet being connected with the second pressure chamber is provided on the valve body.
2. a kind of pressure balance control valve according to claim 1, it is characterised in that: the connecting rod is located in via hole.
3. a kind of pressure balance control valve according to claim 1, it is characterised in that: the First pressure chamber and elastic membrane
The contact area of piece is less than the contact area of control chamber and flexible sheet.
4. a kind of pressure balance control valve according to claim 1, it is characterised in that: the elastic component is spring.
5. a kind of pressure balance control valve according to claim 1, it is characterised in that: the outer ring of the via hole is around setting
There is sealing convex edge, the sealing block is resisted against on sealing convex edge.
6. a kind of pressure balance control valve according to claim 1, it is characterised in that: cooperation sealing is convex on the sealing block
Edge is provided with gasket.
7. a kind of pressure balance control valve according to any one of claims 1-4, it is characterised in that: the control gas
Input terminal is the control gas entrance being arranged on valve body.
8. a kind of pressure balance control valve according to any one of claims 1-4, it is characterised in that: the control gas
Input terminal includes that the auxiliary gas channel on valve body and the intercommunicating pore for being connected to auxiliary gas channel and control chamber is arranged in left and right perforation.
9. a kind of mixed gas proportioner with the pressure balance control valve in claim 7, it is characterised in that: including main gas
Intake line, auxiliary gas intake line and mixed gas output pipe, main gas intake line, auxiliary gas intake line and gaseous mixture
Body output pipe is connected by threeway；
Control piper is provided on the auxiliary gas intake line, control piper is connected to by controlling gas entrance with control chamber；
The pressure balance control valve is arranged on main gas air inlet pipeline by air inlet and gas outlet.
10. a kind of mixed gas proportioner with the pressure balance control valve in claim 8, it is characterised in that: including master
Gas intake line, auxiliary gas intake line and mixed gas output pipe, main gas intake line, auxiliary gas intake line and mixing
Gas export line is connected by threeway；
The pressure balance control valve is arranged on main gas air inlet pipeline by air inlet and gas outlet；
The pressure balance control valve is arranged on auxiliary gas intake line by the auxiliary gas channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820928229.5U CN208719475U (en) | 2018-06-15 | 2018-06-15 | A kind of pressure balance control valve and mixed gas proportioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820928229.5U CN208719475U (en) | 2018-06-15 | 2018-06-15 | A kind of pressure balance control valve and mixed gas proportioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208719475U true CN208719475U (en) | 2019-04-09 |
Family
ID=65971577
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820928229.5U Active CN208719475U (en) | 2018-06-15 | 2018-06-15 | A kind of pressure balance control valve and mixed gas proportioner |
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| CN (1) | CN208719475U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828700A (en) * | 2020-07-21 | 2020-10-27 | 深圳市瑞麟科技有限公司 | Mechanical constant pressure difference control valve of deuterium gas generator |
| CN113687020A (en) * | 2021-06-30 | 2021-11-23 | 沪东中华造船(集团)有限公司 | Detection device and detection method for filling inert gas into low-temperature pipeline of LNG ship |
| CN113775650A (en) * | 2021-08-31 | 2021-12-10 | 浙江工业大学 | Array type multi-outlet film throttler structure |
| CN115215304A (en) * | 2021-04-16 | 2022-10-21 | 无锡市中瑞空分设备有限公司 | Modular nitrogen making machine |
-
2018
- 2018-06-15 CN CN201820928229.5U patent/CN208719475U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828700A (en) * | 2020-07-21 | 2020-10-27 | 深圳市瑞麟科技有限公司 | Mechanical constant pressure difference control valve of deuterium gas generator |
| CN115215304A (en) * | 2021-04-16 | 2022-10-21 | 无锡市中瑞空分设备有限公司 | Modular nitrogen making machine |
| CN115215304B (en) * | 2021-04-16 | 2023-09-19 | 无锡市中瑞空分设备有限公司 | Modularized nitrogen making machine |
| CN113687020A (en) * | 2021-06-30 | 2021-11-23 | 沪东中华造船(集团)有限公司 | Detection device and detection method for filling inert gas into low-temperature pipeline of LNG ship |
| CN113687020B (en) * | 2021-06-30 | 2024-02-09 | 沪东中华造船(集团)有限公司 | LNG ship low-temperature pipeline inert gas filling detection device and detection method thereof |
| CN113775650A (en) * | 2021-08-31 | 2021-12-10 | 浙江工业大学 | Array type multi-outlet film throttler structure |
| CN113775650B (en) * | 2021-08-31 | 2023-12-05 | 浙江工业大学 | Array type multi-outlet film throttle structure |
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