CN216384624U - Electric zero pressure valve for full-premixing wall-mounted furnace - Google Patents
Electric zero pressure valve for full-premixing wall-mounted furnace Download PDFInfo
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- CN216384624U CN216384624U CN202122865190.1U CN202122865190U CN216384624U CN 216384624 U CN216384624 U CN 216384624U CN 202122865190 U CN202122865190 U CN 202122865190U CN 216384624 U CN216384624 U CN 216384624U
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Abstract
The utility model discloses an electric zero pressure valve for a full-premixing wall-mounted furnace, and particularly relates to the technical field of wall-mounted furnaces. The electric zero-pressure valve is adopted, and the zero-pressure adjustment is automatically carried out by detecting flame ion current according to a flame ion current signal, so that the premixing proportion of gas and air is kept in a reasonable range, and the full-premixing combustion is stably realized, thereby achieving the self-adaptive control effect, saving energy and reducing emission, and being suitable for full-premixing wall-mounted furnaces with different powers.
Description
Technical Field
The utility model relates to the technical field of wall-mounted furnaces, in particular to an electric zero pressure valve for a full-premixing wall-mounted furnace.
Background
At present, a pneumatic gas/air ratio regulating valve is adopted in a full-premixing wall-mounted furnace, as shown in fig. 1, the gas zero-pressure regulator applies a venturi effect, controls the movement of a servo diaphragm through an air pressure signal generated by air flow of a fan, and regulates the air pressure in an air cavity, so that the displacement of the driving diaphragm is changed, and the control of the opening degree of a valve port of the gas zero-pressure regulator and the output quantity of gas is realized.
The application of the technology keeps constant excess air coefficient, realizes the automatic control function of gas full-premixing combustion, but is only suitable for the situation that gas source components are stable to realize the gas full-premixing control combustion. At present, the gas composition in China has various differences, and when the calorific value of the gas changes, the pneumatic gas valve is difficult to ignite stably and burn stably.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model provides the electric zero pressure valve for the full-premixing wall-hanging furnace, which can improve the gas self-adaption capability of the full-premixing wall-hanging furnace, particularly a gas source with a variable calorific value.
In order to achieve the purpose, the utility model provides the following technical scheme:
the utility model provides a full premix hanging is electrodynamic type zero pressure valve for stove, includes proportion gas valve and combustion chamber, proportion gas valve has gas import and gas export, the gas export can be linked together with the combustion chamber, still includes the controller, the controller acquires the inside flame ion current signal of combustion chamber and carries out zero pressure according to signal control proportion gas valve and adjusts to the control gas is with the pre-mixing proportion of air.
Preferably, the combustion chamber is provided with a fire detection needle, the controller is connected with the fire detection needle through a fire detection needle feedback line, and the fire detection needle transmits a flame ion current signal to the controller according to the flame state.
Preferably, the proportional gas valve is provided with a zero pressure regulator, and the controller controls the zero pressure regulator by controlling the proportional gas valve so as to control the premixing proportion of the gas and the air.
Preferably, the combustion chamber further comprises a fan and a venturi, the venturi is provided with an air inlet, and the venturi and the fan can send air entering from the air inlet and gas from the gas outlet into the interior of the combustion chamber for combustion.
Preferably, the venturi is communicated with the inside of the gas outlet through a connection pipe.
Preferably, the gas burner further comprises a micro-pressure meter for detecting the pressure at the gas outlet.
The utility model has the technical effects and advantages that:
1. the electric zero-pressure valve is adopted, and the zero-pressure adjustment is automatically carried out by detecting flame ion flow according to the flame ion current signal, so that the premixing proportion of gas and air is kept in a reasonable range, and the full-premixing combustion is stably realized, thereby achieving the self-adaptive control effect, saving energy and reducing emission, and being suitable for full-premixing wall-mounted furnaces with different powers;
2. through technical improvement, the product can normally run, is energy-saving, and can solve the problem of change of complex air sources in various places.
Drawings
Fig. 1 is a schematic structural view of a wall-hanging stove in the prior art.
Fig. 2 is a schematic view of the overall structure of the present invention.
The reference signs are:
the device comprises a proportional gas valve 1, a gas inlet 11, a gas outlet 12, a combustion chamber 2, a controller 21, a fire detection needle 22, a fire detection needle feedback line 23, a fan 24, a venturi 25, an air inlet 251, a connecting pipe 26 and a micro-pressure meter 27.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model provides an electric zero pressure valve for a full-premix wall hanging furnace.
Example one
As shown in fig. 1, the electric zero-pressure valve includes a proportional gas valve 1 and a combustion chamber 2, the proportional gas valve 1 has a gas inlet 11 and a gas outlet 12, and the gas outlet 12 can be communicated with the combustion chamber 2.
The wall-mounted gas boiler further comprises a fan 24 and a venturi 25, the venturi 25 is provided with an air inlet 251, the venturi 25 is communicated with the inside of the gas outlet 12 through a connecting pipe 26, the venturi 25 and the fan 24 can send air entering from the air inlet 251 and gas entering from the gas outlet 12 into the combustion chamber 2 for combustion, when the boiler senses that heating is needed in a standby working state of the wall-mounted gas boiler, the fan 24 is started, air enters the combustion chamber 2, and the gas enters the combustion chamber 2 to be premixed with the air for ignition and combustion.
The controller 21 is used for acquiring flame ion current signals inside the combustion chamber 2 and controlling the proportional gas valve 1 to perform zero-pressure regulation according to the signals, so that the premixing proportion of gas and air is controlled, specifically, the flame ion current signals can be acquired by using the fire detection needle 22, the fire detection needle 22 is arranged on the combustion chamber 2, the controller 21 is connected with the fire detection needle 22 through the fire detection needle feedback line 23, the fire detection needle 22 transmits the flame ion current signals to the controller 21 according to the flame state, during specific control, the proportional gas valve 1 is provided with a zero-pressure regulator, and the controller 21 controls the zero-pressure regulator by controlling the proportional gas valve 1 so as to control the premixing proportion of the gas and the air.
The electric zero-pressure valve is adopted, and the zero-pressure adjustment is automatically carried out by detecting flame ion current according to a flame ion current signal, so that the premixing proportion of gas and air is kept in a reasonable range, and the full-premixing combustion is stably realized, thereby achieving the self-adaptive control effect, saving energy and reducing emission, and being suitable for full-premixing wall-mounted furnaces with different powers.
Through technical improvement, the product can normally run, is energy-saving, and can solve the problem of change of complex air sources in various places.
Example two
A micro-pressure gauge 27 is also included, the micro-pressure gauge 27 being used to detect the pressure at the gas outlet 12.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the utility model, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the utility model can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (6)
1. The utility model provides a full premix hanging is electrodynamic type zero pressure valve for stove, includes proportion gas valve (1) and combustion chamber (2), proportion gas valve (1) has gas import (11) and gas export (12), gas export (12) can be linked together its characterized in that with combustion chamber (2): the device is characterized by further comprising a controller (21), wherein the controller (21) acquires flame ion current signals inside the combustion chamber (2) and controls the proportional gas valve (1) to perform zero pressure adjustment according to the signals, so that the premixing proportion of gas and air is controlled.
2. The electric zero pressure valve for the full-premix wall hanging stove according to claim 1, characterized in that: be provided with on combustion chamber (2) and examine fire needle (22), controller (21) are connected with examining fire needle (22) through examining fire needle feedback line (23), examine fire needle (22) and transmit flame ion current signal to controller (21) according to flame status.
3. The electric zero-pressure valve for the full-premix wall hanging stove according to claim 1 or 2, characterized in that: the proportional gas valve (1) is provided with a zero pressure regulator, and the controller (21) controls the zero pressure regulator by controlling the proportional gas valve (1) so as to control the premixing proportion of gas and air.
4. The electric zero-pressure valve for the full-premix wall hanging stove according to claim 1 or 2, characterized in that: the combustor further comprises a fan (24) and a venturi (25), wherein the venturi (25) is provided with an air inlet (251), and the venturi (25) and the fan (24) can send air entering from the air inlet (251) and gas from the gas outlet (12) into the interior of the combustion chamber (2) for combustion.
5. The electric zero pressure valve for the full-premix wall hanging stove according to claim 4, characterized in that: the venturi (25) is communicated with the inside of the gas outlet (12) through a connecting pipe (26).
6. The electric zero-pressure valve for the full-premix wall hanging stove according to claim 1 or 2, characterized in that: a micro-pressure gauge (27) is also included, the micro-pressure gauge (27) being used for detecting the pressure at the gas outlet (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122865190.1U CN216384624U (en) | 2021-11-22 | 2021-11-22 | Electric zero pressure valve for full-premixing wall-mounted furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122865190.1U CN216384624U (en) | 2021-11-22 | 2021-11-22 | Electric zero pressure valve for full-premixing wall-mounted furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216384624U true CN216384624U (en) | 2022-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122865190.1U Active CN216384624U (en) | 2021-11-22 | 2021-11-22 | Electric zero pressure valve for full-premixing wall-mounted furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216384624U (en) |
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2021
- 2021-11-22 CN CN202122865190.1U patent/CN216384624U/en active Active
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