Self-cleaning control terminal of electrically operated valve

Abstract

The invention discloses a self-cleaning control terminal of an electrically operated valve. The self-cleaning control terminal of the electrically operated valve comprises a control module, a displayscreen, an output module and an input module. The display screen, the output module and the input module are all connected with the control module. The output module is connected with the electricallyoperated valve. The input module is used for inputting instructions or parameters. The input module is configured to set self-cleaning parameters of the electrically operated valve, and the self-cleaning parameters include at least one of self-cleaning starting time setting or self-cleaning starting condition setting. The control module is internally provided with a timer and is used for triggering the self-cleaning action of the electrically operated valve according to the self-cleaning parameters. According to the self-cleaning control terminal of the electrically operated valve, it does not need to demount a valve body, implementation is easy, and the reliability of the electrically operated valve can be greatly improved.

Description

technical field [0001] The invention belongs to the field of valve control and relates to an electric valve self-cleaning control terminal. Background technique [0002] Fan coil unit is the terminal air-conditioning equipment of the central air-conditioning system. It is generally installed in the indoor ceiling and connected to the central air-conditioning system through pipes. The cold / hot water cools or heats the air through the coil, and then sends the air to the room through the fan; Usually each fan coil unit is equipped with an electric valve, and the air conditioner is controlled by indoor users through a temperature control panel. [0003] The electric valve is a key component of the temperature control of the indoor air conditioner. It is installed on the water inlet pipe of the fan coil unit and controlled by the temperature control panel. The temperature control panel automatically switches the electric valve by comparing the set temperature with the indoor air...

AI Technical Summary

Problems solved by technology

[0009] 1) Electric valve: As a valve manufacturer, it only pays attention to the quality of the electric valve itself, such as water pressure resistance, reliability of electronic components of the electric actuator, structural strength of the valve body, etc.; The power of the valve body drive motor, or improve the material of the valve core, such as changing metal to ceramic, etc., but the effect is not ideal from the perspective of practical application, and often increases the cost of the valve and reduces the cost performance, because no matter how good the quality is Valves are also unable to cope with the continuous accumulation of scale, so valve manufacturers will not include this problem in their product quality problems at all

[0010] 2) Controller: The electric valve control terminal is generally the temperature control panel of the fan coil unit, which is electrically connected to the electric valve. The opening and closing of the electric valve is controlled by the temperature control logic of the temperature control panel. The existing temperature control panel is only for indoor air conditioners. Service, to meet the requirements of convenient operation, beautiful appearance, and comfortable temperature control, so temperature control panel manufacturers have no reason to consider the problem of electric valve stuck or not tightly closed

[0012] 4) Central air-conditioning management and maintenance unit: In addition to water quality treatment of circulating water, the electric valve can only be repaired or replaced, which is only a passive treatment department and cannot solve the fundamental problem

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