Novel device for closure of small pump station

A new device and pumping station technology, applied in the direction of valve device, function valve type, valve details, etc., can solve the problems of check valve spool movement, easy failure and poor effect, so as to achieve convenient and reliable connection, prevent escape, Sealed and reliable effect

Inactive Publication Date: 2015-12-09
杭州水利水电勘测设计院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is to overcome the defect that the movement of the spool of the check valve in the prior art is prone to failure and the effect is not good, and to provide a new shut-off device with automatic centering of the spool and self-tightening effect of the seal. It can replace the existing check valve in small pump stations, and its sealing and non-return effect are better

Method used

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  • Novel device for closure of small pump station
  • Novel device for closure of small pump station
  • Novel device for closure of small pump station

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: as figure 1 As shown, a new shut-off device for a small pumping station includes a valve body 1, a funnel-shaped valve seat 2 is provided at the lower part of the valve body 1, and the middle part of the valve body 1 is a cylindrical structure 3, and there is a cylindrical structure 3 inside the valve body 1. The spherical valve core 4, the valve seat 2 and the valve core 4 are sealable fits, the inlet connection end 5 is connected under the valve seat 2, the outlet connection end 6 is connected to the middle side of the valve body 1, and the upper part of the valve body 1 is connected to valve cover7.

[0031] The inlet connection end 5 is an elbow with a 90° bend, and its tail end is in a horizontal state. When the pump is started, for the valve seat 2 of the device, the water pressure at the water inlet is higher than the water pressure at the water outlet. The water pushes the spherical valve core 4 upwards from the bottom of the funnel-shaped valve s...

Embodiment 2

[0042] Embodiment 2: There are two outlet pipes, which are set according to the drainage requirements; when there is one outlet pipe, the outlet pipe and the water inlet pipe are arranged in parallel; when there are two outlet pipes, the outlet pipe and the water inlet pipe are arranged vertically. Such as Figure 7 shown.

Embodiment 3

[0043] Embodiment 3: The valve core is a spherical structure made of polypropylene, and there is a small metal ball for counterweight inside the spherical structure.

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PUM

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Abstract

The invention discloses a novel device for closure of a small pump station. The novel device overcomes the defects that in the prior art, faults are prone to occurring in moving of a check valve element, and effects are poor. The device which is used on the small pump station to replace an existing check valve is provided. The novel device is better in sealing and checking effect and comprises a valve body. A funnel-shaped valve seat is arranged on the lower portion of the valve body. The middle of the valve body is of a cylindrical structure. A ball-shaped valve element is arranged in the cylindrical structure. The valve seat can be matched with the valve element in a sealed mode. The lower face of the valve seat is connected with an inlet connecting end. An outlet connecting end is arranged on the side edge of the middle of the valve body. The upper portion of the valve body is connected with a valve deck. The novel device has the beneficial effects that self tightening is achieved, smoothness of a draining pipeline is ensured, the valve element is automatically centered, and lifting, opening and closing are accurate and stable.

Description

technical field [0001] The invention belongs to the technical field of fluid conveying equipment, and in particular relates to a device for preventing backflow in a pump station. Background technique [0002] In prior art pump station shut-off devices, such as check valves, the spool is mostly composed of a pin-connected and rotating structure. The check process of this structure is uneven, and the spool and valve seat are prone to collisions. In the prior art, there is also a new translational structure of the valve core, which is compressed by spring force to form a seal between the valve core and the valve seat. [0003] For example, the Chinese patent application number 201210135258.3, the invention patent application named "check valve", the invention application states that the valve body is provided with a valve seat part and a limiting part; and has a disc part and protrudes from the disc part A plurality of guide parts on the outer periphery of the valve body, whic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/04F16K27/02F16K27/12
CPCF16K15/04F16K27/0209F16K27/12
Inventor 尉高洋
Owner 杭州水利水电勘测设计院有限公司
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