Gas valve with proportional electromagnetic valve regulation and combustor air pressure feedback regulation functions

A technology of proportional solenoid valve and feedback adjustment, applied in valve details, valve operation/release devices, safety valves, etc., can solve problems such as large water temperature fluctuations, poor gas valve structure, and large hysteresis, and achieve stable water temperature and output Effect of stabilization, gas flow and pressure coordination

Active Publication Date: 2014-08-20
杭州强邦精密机械电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the defects of poor structure of the gas valve in the prior art, relying solely on electrical control with large hysteresis, so as to cause large fluctuations in water temperature, and provide a gas valve that n

Method used

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  • Gas valve with proportional electromagnetic valve regulation and combustor air pressure feedback regulation functions
  • Gas valve with proportional electromagnetic valve regulation and combustor air pressure feedback regulation functions

Examples

Experimental program
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Effect test

Embodiment 1

[0023] Embodiment 1: as figure 1As shown, a gas valve with proportional electromagnetic valve adjustment and combustion chamber air pressure feedback adjustment includes a proportional valve. The upper end of the valve body 1 of the proportional valve is provided with an output port 11, and the side of the valve body 1 is provided with an input port 12. The input port is connected to the The output port is connected through the buffer air cavity 13 in the middle of the valve body, and the input port 12 is connected with the electromagnetically controlled self-priming valve 2; there is an aluminum valve core 3 in the center of the buffer air cavity 13, and the upper end of the aluminum valve core 3 is connected to the valve disc 31, and the valve disc 31 Corresponding to the valve seat 14 on the upper side of the buffer air chamber 13, the valve seat 14 is directly processed on the valve body 1, and the valve flap 31 is made of a material that is soft and resistant to gas corros...

Embodiment 2

[0028] Embodiment 2: as figure 2 As shown, the lower end surface of the adjusting screw as the lower end cover 66 bears against the locking screw 662, and the rest of the structure is the same as that of embodiment 1, and the locking screw 662 is used to lock the adjusting screw, which is set by professionals during the factory debugging stage.

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Abstract

The invention provides a gas valve with proportional electromagnetic valve regulation and combustor air pressure feedback regulation functions. The gas valve comprises a proportional valve and a self-suction valve. The upper end of an aluminum valve element of the proportional valve is connected with a valve clack, a valve deck is arranged at the lower end of a valve body, the periphery of a membrane is clamped between the valve body and the valve deck, the lower end of the aluminum valve element is connected with a center hole of the membrane, and the lower portion of the membrane is connected with an aluminum valve element reset mechanism; the valve deck is connected with a proportional electromagnetic valve which comprises a guide pipe, the upper portion of the guide pipe is connected with the valve deck, the lower portion of the guide pipe is connected with a lower valve base of the proportional electromagnetic valve, an exciting coil is connected to the outside of the guide pipe through a framework, a regulation movable core is assembled in the guide pipe, and a lower end cover is assembled at the inner hole in the lower section of the lower valve base; a shaft end is arranged at the lower end of the aluminum valve element and corresponds to the regulation movable core, the upper end of the regulation movable core abuts against a reset spring, the shaft end is sleeved with the reset spring, and the upper portion of the reset spring abuts against the valve deck; the lower end of the regulation movable core abuts against a pressure stabilization spring, the other end of the regulation movable core abuts against a lower end cover of the proportional electromagnetic valve, the side edge, corresponding to the pressure stabilization spring, of the lower valve base is connected with a feedback air pressure pipe joint, and the pipe joint is connected with a combustor. The gas valve is used for a gas water heater and has the advantage that output water temperature fluctuation is extremely small.

Description

technical field [0001] The invention belongs to the technical field of water heater valves, and in particular relates to a gas valve device. Background technique [0002] In the use of general water heaters in the prior art, it is common for the water temperature to fluctuate from high to low. One of the reasons is that due to the different stability of regional air sources, some families or areas with higher air source pressure output, that is, pressure When the working pressure of the proportional valve exceeds the upper limit of the national standard gas source, the working pressure of the proportional valve is high, and the phenomenon of vibration of the proportional valve and unstable outlet pressure often occurs, which directly affects the operation of the gas water heater; the second reason is that the proportional valve of the existing technology Due to the structural characteristics of the spool, the adjustment devices of the water heaters in the prior art are gener...

Claims

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Application Information

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IPC IPC(8): F16K17/20F16K31/64
CPCF16K17/003F16K17/20
Inventor 邵嘉泰
Owner 杭州强邦精密机械电器有限公司
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