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Air control valve

An air-conditioning valve and adjustment knob technology, which is applied to furnace control devices, furnaces, lighting and heating equipment, etc., can solve the problems of unstable combustion reaction of kilns, large fluctuations in gas pressure, and easy production accidents. Promote use, reduce the risk of gas leakage, compact structure

Pending Publication Date: 2018-06-01
佛山市诺一燃控科技有限公司
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Problems solved by technology

The common gas proportional valve is to adjust the gas pressure according to the air pressure. By setting the valve body of the gas proportional valve on the gas pipeline, the gas flow can be controlled, and the gas and air pressure ratio is 1:1, but this The setting method has the following defects: (1) The control accuracy is low, resulting in large fluctuations in the output gas pressure, which makes the combustion reaction in the kiln unstable; (2) The control response is slow, resulting in insufficient combustion of the gas in the kiln. Pollutants are increasing; (3) The safety is poor, and the gas leaks from the gap of the gas proportional valve to the outside, which is easy to cause production accidents

Method used

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Embodiment approach

[0034] see Figure 1 to Figure 5 , an air regulating valve, comprising a casing 1, an upper cavity and a lower cavity are arranged in the casing 1, a connecting structure is arranged in the upper cavity, and the connecting structure is used to control the air in the upper cavity flux; the lower cavity is provided with an elastic diaphragm structure 3, and the elastic diaphragm structure 3 is connected to the connection structure through a transmission rod 23; the lower cavity is externally connected to an external gas pipeline (not shown in the figure ), the external gas pipeline can input gas to the lower cavity; the elastic diaphragm structure 3 is deformed and brought to the transmission rod 23 under the pressure of the gas, thereby adjusting the opening of the connecting structure degree of fit.

[0035] The shell 1 includes an upper shell 11 and a lower shell 13, the upper shell 11 is detachably connected to the lower shell 13; the upper cavity is arranged in the upper s...

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Abstract

The invention provides an air control valve. The air control valve comprises an outer shell. An upper cavity and a lower cavity are arranged in the outer shell. A connecting structure is arranged in the upper cavity and used for controlling the air flux in the upper cavity. An elastic film structure is arranged in the lower cavity and connected with the connecting structure through a transmissionrod. The lower cavity is externally connected with an external fuel gas pipeline which can input fuel gas to the lower cavity. The elastic film structure deforms under the pressure action of the fuelgas to drive the transmission rod, and therefore the opening degree of the connecting structure is adjusted. The air control valve is high in control response speed and good in control effect.

Description

technical field [0001] The invention relates to the field of industrial furnaces, in particular to an air regulating valve. Background technique [0002] The gas proportional valve is a kind of gas proportional valve applied to the kiln. It is used to adjust the flow rate of the gas source according to the different needs of the heat load when the gas source is open, so as to ensure that the gas inlet pressure of the kiln remains relatively constant, so that the combustion in the kiln Regulating parts for stable reaction. The common gas proportional valve adjusts the gas pressure according to the air pressure. By setting the valve body of the gas proportional valve on the gas pipeline, the gas flow can be controlled and the gas and air pressure ratio is 1:1. However, this The setting method has the following defects: (1) The control accuracy is low, resulting in large fluctuations in the output gas pressure, which makes the combustion reaction in the kiln unstable; (2) The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D19/00
CPCF27D19/00F27D2019/0043
Inventor 甄从军
Owner 佛山市诺一燃控科技有限公司
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