CN206904977U - The combustion gas of regulation stability of flow and precision passes through adjusting means - Google Patents
The combustion gas of regulation stability of flow and precision passes through adjusting means Download PDFInfo
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- CN206904977U CN206904977U CN201720651285.4U CN201720651285U CN206904977U CN 206904977 U CN206904977 U CN 206904977U CN 201720651285 U CN201720651285 U CN 201720651285U CN 206904977 U CN206904977 U CN 206904977U
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Abstract
The utility model discloses a kind of combustion gas for adjusting stability of flow and precision to pass through adjusting means, when air exhauster works, wind enters from blast pipe, combustion gas is from gas inlet control valve group, Self-operated differential pressure regulaitng valve by into blast pipe, combustion gas mixes with air is sent into combustion chamber by air exhauster in the lump, and combustion gas controls the break-make of gas circulation, electric gas flow proportional governor valve control combustion gas stream flux from the electric switching valve of gas inlet control valve group 1；The operating power of air exhauster is bigger, and the air intake flow of blast pipe is bigger, and its blast also becomes big therewith, on the contrary, smaller；The negative tube being connected with blast pipe is in negative pressure state, flow control pressure sensitive film in Self-operated differential pressure regulaitng valve can be bigger because of the aperture of the bigger opening of negative pressure, (i.e. negative pressure is bigger by more for gas flow, air is bigger by flow, required combustion gas is also more could be directly proportional), flow in Self-operated differential pressure regulaitng valve control pressure sensitive film with vacuum magnitude dynamic change aperture, can with constant gas circulation, make combustion gas by it is stable, undulating value is minimum.
Description
Technical field
Gas control valve is the utility model is related to, specifically a kind of combustion gas for adjusting stability of flow and precision is by adjusting dress
Put.
Background technology
The heat exchanger of existing closed-loop control burning is required to gas switch valve, flow control proportioning valve, flow control ratio
Valve controls gas flow size, and gas switch valve control combustion gas break-make, for cost-saving, manufacturer typically only sets a combustion
Exhaust switch valve controls combustion gas break-make, and a flow controls proportional valve control gas flow size, if one burnt gas switch of installation
Valve controls combustion gas break-make, in use gas switch valve may failure, damage etc., and flow control proportioning valve is due to being
Motor control, motor have a rotation spacing by startup work to stopping the rotation, and the circumferential spacing size of rotation directly affects combustion
The throughput of gas, because combustion gas has air pressure, the slight error of flow control proportioning valve all can be very big on combusting firepower influence, to combustion
Throughput control is inaccurate, influences the discharge such as carbon monoxide, oxysulfide.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides a kind of gas flow and controls constant, gas flow more
The combustion gas of accurate regulation stability of flow and precision passes through adjusting means.
Solve above-mentioned technical problem scheme be：
The combustion gas for adjusting stability of flow and precision is controlled by adjusting means, combustion gas by adjusting means including gas inlet
Valve group (1) and air exhauster (3), the outlet side of gas inlet control valve group (1) are connected with Self-operated differential pressure regulaitng valve (2)；It is described
Air exhauster (3) is connected with blast pipe (31), and the side wall of blast pipe (31) is connected phase with the gas outlet of Self-operated differential pressure regulaitng valve (2)
It is logical；The negative tube (21) of the Self-operated differential pressure regulaitng valve (2) is connected with the side wall of blast pipe (31) to be communicated.
Further：The gas inlet control valve group (1) comprises at least an electric switching valve, an electric gas flow
Ratio adjusting valve.
Further：The gas inlet control valve group (1) includes two electric switching valves of series winding.
Regulation stability of flow of the present utility model and accurate combustion gas are by adjusting means advantage：The letter of this product structure
It is single, practical, first pass through gas inlet control valve group and enter ratio aperture regulation once, then carry out secondary self-operated type pressure difference
Valve regulation is adjusted, the flow that Self-operated differential pressure regulaitng valve can be passed through with constant combustion gas, improves the accuracy that combustion gas passes through, reduces combustion
Gas is by fluctuation, and its stability is good, the advantages that having good positioning.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
The combustion gas for adjusting stability of flow and precision is controlled by adjusting means, combustion gas by adjusting means including gas inlet
Valve group 1 and air exhauster 3, the outlet side of gas inlet control valve group 1 are connected with Self-operated differential pressure regulaitng valve 2；The air exhauster 3 connects
Blast pipe 31 is connected to, the side wall of blast pipe 31 is connected with the gas outlet of Self-operated differential pressure regulaitng valve 2 to be communicated；The self-operated type pressure difference
The negative tube 21 of regulating valve 2 is connected with the side wall of blast pipe 31 to be communicated.
The gas inlet control valve group 1 comprises at least an electric switching valve, an electric gas flow proportional regulation
Valve.
The gas inlet control valve group 1 includes two electric switching valves of series winding, and two electric switching valves can prevent
It is unexpected to occur, such as：Some electric switching valve failure, damage etc..
The course of work：
When air exhauster 3 works, wind enters from blast pipe 31, and combustion gas is adjusted from gas inlet control valve group 1, self-operated type pressure difference
Valve 2 is by entering blast pipe 31, and combustion gas mixes with air is sent into combustion chamber by air exhauster 3 in the lump, and combustion gas controls from gas inlet
The break-make of the electric switching valve control gas circulation of valve group 1, electric gas flow proportional governor valve control combustion gas stream flux；Exhausting
The operating power of machine 3 is bigger, and the air intake flow of blast pipe 31 is bigger, and its blast also becomes big therewith, on the contrary, smaller；With air intake
The negative tube 21 that pipe 31 connects be in negative pressure state, and the flow in Self-operated differential pressure regulaitng valve 2 controls pressure sensitive film to be got over because of negative pressure
The aperture opened greatly is bigger, and (i.e. negative pressure is bigger, and air is bigger by flow, and required combustion gas is also got over by more for gas flow
More could be directly proportional), the flow in Self-operated differential pressure regulaitng valve 2 control pressure sensitive film with vacuum magnitude dynamic change aperture, can
With constant gas circulation, make combustion gas minimum by stabilization, undulating value.
Self-operated differential pressure regulaitng valve 2 can ensure that operting differential pressure is no more than maximum allowable pressure difference；Guarantee passes through flow restriction
Within maximum stream flow；Guarantee does not produce noise and cavitation.
The side wall of Self-operated differential pressure regulaitng valve 2 is provided with regulating error knob, can voluntarily adjust the aperture ratio of negative pressure value.
The Self-operated differential pressure regulaitng valve 2 is the negative tube 21 for including voluntarily extending.
Self-operated differential pressure regulaitng valve 2 is also referred to as Differential Pressure Controller, and Differential Pressure Controller is also known as dynamic pressure drop
Regulating valve, dynamic pressure drop balanced valve, differential pressure controller, pressure-differentially-set valve；Its structure is by valve body, double throttle valve seat, flap, sense
Press mold, spring and differential pressure adjusting device etc. form.
Claims (3)
1. the combustion gas of regulation stability of flow and precision passes through adjusting means, it is characterised in that：Combustion gas includes combustion by adjusting means
Gas air intake control valve group (1) and air exhauster (3), the outlet side of gas inlet control valve group (1) are connected with the regulation of self-operated type pressure difference
Valve (2)；The air exhauster (3) is connected with blast pipe (31), the side wall of blast pipe (31) and going out for Self-operated differential pressure regulaitng valve (2)
Gas port connection communicates；The negative tube (21) of the Self-operated differential pressure regulaitng valve (2) is connected with the side wall of blast pipe (31) to be communicated.
2. the combustion gas of regulation stability of flow according to claim 1 and precision passes through adjusting means, it is characterised in that：It is described
Gas inlet control valve group (1) comprises at least an electric switching valve, an electric gas flow proportional regulating valve.
3. the combustion gas of regulation stability of flow according to claim 2 and precision passes through adjusting means, it is characterised in that：It is described
Gas inlet control valve group (1) includes two electric switching valves of series winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720651285.4U CN206904977U (en) | 2017-06-06 | 2017-06-06 | The combustion gas of regulation stability of flow and precision passes through adjusting means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720651285.4U CN206904977U (en) | 2017-06-06 | 2017-06-06 | The combustion gas of regulation stability of flow and precision passes through adjusting means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206904977U true CN206904977U (en) | 2018-01-19 |
Family
ID=61287150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720651285.4U Active CN206904977U (en) | 2017-06-06 | 2017-06-06 | The combustion gas of regulation stability of flow and precision passes through adjusting means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206904977U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980888A (en) * | 2018-07-05 | 2018-12-11 | 珠海格力电器股份有限公司 | Gas heating equipment and its control method |
| CN109442405A (en) * | 2018-12-26 | 2019-03-08 | 广州威茨热能技术有限公司 | A kind of air-fuel ratio mixer |
-
2017
- 2017-06-06 CN CN201720651285.4U patent/CN206904977U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980888A (en) * | 2018-07-05 | 2018-12-11 | 珠海格力电器股份有限公司 | Gas heating equipment and its control method |
| CN109442405A (en) * | 2018-12-26 | 2019-03-08 | 广州威茨热能技术有限公司 | A kind of air-fuel ratio mixer |
| CN109442405B (en) * | 2018-12-26 | 2023-12-05 | 广州威茨热能技术有限公司 | Air-fuel ratio example mixer |
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