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Non negative pressure controller

A controller and non-negative pressure technology, which is applied to water supply devices, buildings, water supply main pipelines, etc., can solve the problems of affecting water use, high production costs, and poor reliability of automatic air supply valves, and achieves reliable use, simple structure, low production cost

Inactive Publication Date: 2008-07-02
张明亮
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of urban construction, the pressure of municipal water supply pipelines in many areas can no longer meet the water requirements of residential quarters or upper-level users of high-rise buildings.
In order to solve the above problems, people usually connect pressurized equipment in series in the municipal water supply pipeline. However, due to the negative pressure problem caused by the suction of the water pump, the series connected pressurized equipment will affect the water use of other users. Therefore, in the present Vacuum suppressors and automatic air supply valves have also appeared on pressurized equipment to eliminate negative pressure, but the structure of vacuum suppressors is complex and the production cost is high, while the reliability of automatic air supply valves is poor

Method used

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Embodiment Construction

[0012] Combine below Figure 1~3 The non-negative pressure controller of the present invention will be described in detail below.

[0013] Such as Figure 1~3 As shown, the non-negative pressure controller of the present invention is made up of shell (2), flange (1), float (4), guide cover (3), piston (5) and piston plate (7), and shell (2) Including the cylinder body (21) and the head (22), the lower end of the cylinder body (21) is equipped with a flange (1), and the middle part of the flange (1) is evenly distributed with through holes leading to the shell (2) (11), the periphery of the flange (1) is provided with a fixing hole (12), the upper end of the cylinder (21) is connected with the head (22), the piston plate (7) is fixed on the cylinder (21), and the housing (2) Divided into upper and lower parts, the upper part of the housing (2) is the air chamber (24), the lower part is the water chamber (23), the float (4) is set in the water chamber (23), and placed in the g...

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Abstract

The invention provides a controller with no negative pressure, which consists of a housing, a flange, a float, a guide cover, a piston and a piston plate, wherein the float is arranged in the guide cover in the housing; the guide cover is fixed on the piston plate; the piston plate is fixed on the housing; the piston is disposed above the piston and is positioned in a center hole of the piston plate to make free up and down movement; and a guide rod is sealed with the piston plate through an O-shaped gasket provided on the bottom of the guide rod. The invention has simple structure, low fabrication cost and reliable use, and can be installed above a sealed water storage container in font of a water suction pipe of a water pump of pressurization equipment directly serially connected with water supply pipes in city, thus solving the negative pressure problem due to the absorbing height of the water pump when the water inflow volume of the pressurization equipment is less than the water supply volume and not influencing water usage of other users.

Description

1. Technical field [0001] The invention relates to the technical field of non-negative pressure control, in particular to a non-negative pressure controller used in non-negative pressure pressurization equipment directly connected in series to municipal water supply pipelines. 2. Background technology [0002] With the development of urban construction, the pressure of municipal water supply pipelines in many areas can no longer meet the water requirements of residential quarters or upper-level users of high-rise buildings. In order to solve the above problems, people usually connect pressurized equipment in series in the municipal water supply pipeline. However, due to the negative pressure problem caused by the suction of the water pump, the series connected pressurized equipment will affect the water use of other users. Therefore, in the present Vacuum suppressors, automatic air supply valves, etc. have also appeared on pressurized equipment to eliminate negative pressure...

Claims

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Application Information

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IPC IPC(8): E03B7/09
Inventor 张明亮王学成夏伟光
Owner 张明亮
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