A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a pilot valve. The pilot valve is provided with a bidirectional flow control mechanism. The two-way flow control mechanism is communicated with the second containing cavity of the guide valve; when air pressure obtained by the first containing cavity of the guide valve reaches a preset value, the valve element of the guide valve moves in the forward direction, so that the vacuum valve is in a negative pressure state, and the vacuum valve achieves the water pumping function. When the air pressure obtained by the first containing cavity of the pilot valve is lower than the preset value, the valve element of the pilot valve moves reversely, the air pressure in the vacuum valve is balanced, and the vacuum valve stops pumping water. According to the two-way flow control mechanism, the pilot valve can quickly respond when constructing a negative pressure state for the vacuum valve, and the pilot valve slows down the air pressure balance process in the vacuum valve, so that the effects of preventing overflow in a well and frequent opening and closing of the vacuum valve are achieved.
本发明公开了一种导阀，导阀设置有双向流量控制机构。双向流量控制机构与导阀的第二容腔连通；当导阀的第一容腔获得气压达到预设值时，导阀的阀芯正向运动，使得真空阀构建负压状态，真空阀实现抽水功能。当导阀的第一容腔获得气压低于预设值时，导阀的阀芯反向运动，使得真空阀内气压平衡，真空阀停止抽水。本发明的双向流量控制机构使得导阀在为真空阀构建负压状态时能够快速响应，导阀使得真空阀内气压平衡的过程放缓，从而达到防止井内溢水和真空阀频繁启闭的效果。
The invention discloses a pilot valve. The pilot valve is provided with a bidirectional flow control mechanism. The two-way flow control mechanism is communicated with the second containing cavity of the guide valve; when air pressure obtained by the first containing cavity of the guide valve reaches a preset value, the valve element of the guide valve moves in the forward direction, so that the vacuum valve is in a negative pressure state, and the vacuum valve achieves the water pumping function. When the air pressure obtained by the first containing cavity of the pilot valve is lower than the preset value, the valve element of the pilot valve moves reversely, the air pressure in the vacuum valve is balanced, and the vacuum valve stops pumping water. According to the two-way flow control mechanism, the pilot valve can quickly respond when constructing a negative pressure state for the vacuum valve, and the pilot valve slows down the air pressure balance process in the vacuum valve, so that the effects of preventing overflow in a well and frequent opening and closing of the vacuum valve are achieved.
本发明公开了一种导阀，导阀设置有双向流量控制机构。双向流量控制机构与导阀的第二容腔连通；当导阀的第一容腔获得气压达到预设值时，导阀的阀芯正向运动，使得真空阀构建负压状态，真空阀实现抽水功能。当导阀的第一容腔获得气压低于预设值时，导阀的阀芯反向运动，使得真空阀内气压平衡，真空阀停止抽水。本发明的双向流量控制机构使得导阀在为真空阀构建负压状态时能够快速响应，导阀使得真空阀内气压平衡的过程放缓，从而达到防止井内溢水和真空阀频繁启闭的效果。
VACUUM VALVE CONTROLLING APPARATUS AND VACUUM VALVE UNIT
| European Patent Office | 2017
VACUUM VALVE CONTROLLING APPARATUS AND VACUUM VALVE UNIT
| European Patent Office | 2017