Unlock instant, AI-driven research and patent intelligence for your innovation.

Truss overflowing type three-eccentric center butterfly valve

A triple-eccentric butterfly valve, over-flow technology, applied in the direction of lift valve, valve device, engine components, etc., can solve the problems of high over-flow surface pressure and poor pressure-bearing capacity, so as to improve the pressure-bearing capacity, reduce pressure, ensure The effect of reliability

Inactive Publication Date: 2020-04-21
NANJING UNIV OF TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problems of the existing triple eccentric butterfly valve with high pressure on the flow surface of the valve plate and poor pressure bearing capacity, the present invention provides a truss flow type triple eccentric butterfly valve

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Truss overflowing type three-eccentric center butterfly valve
  • Truss overflowing type three-eccentric center butterfly valve
  • Truss overflowing type three-eccentric center butterfly valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Please combine figure 1 and figure 2 , The truss overflow triple eccentric butterfly valve includes a valve body (not shown), a valve seat 1, a valve plate 2 and a truss assembly 3.

[0026] The middle part of the valve body has a flow channel (not shown) for fluid to pass through, and the valve seat 1 is arranged in the flow channel. In this embodiment, the valve seat 1 and the flow channel can be fixed by welding. In other embodiments, the valve seat 1 and the flow channel can also be embedded, as long as the stability of the connection between the two is not affected, other connection methods can also be used.

[0027] The valve seat 1 is a ring body in the shape of a ring as a whole. The valve seat 1 is provided with a sealing contact surface (not shown) corresponding to the valve plate 2 . The valve plate 2 is a circular plate body as a whole. When the valve plate 2 is closed on the valve seat 1, it is specified that the side of the valve plate 2 facing the in...

Embodiment 2

[0042] The difference between this embodiment 2 and embodiment 1 is that this embodiment 2 provides a comparison of the data of the common triple eccentric butterfly valve and the truss flow type triple eccentric butterfly valve of the present invention under the same pipeline inlet pressure, as follows Table 1 shows:

[0043]

[0044] Table 1

[0045] According to the above Table 1, it can be seen that the data comparing the common triple eccentric butterfly valve with the truss flow type triple eccentric butterfly valve of the present invention includes dynamic water moment, pressure difference, flow rate and flow coefficient.

[0046]Hydrodynamic torque: When the butterfly valve is installed in the pipeline, the fluid flowing through the valve plate 2 will be hindered at any angle, and the pressure of the fluid is distributed on both sides of the valve plate 2. Since the butterfly valve is in the process of opening and closing, the valve stem The characteristics of the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the field of pressure pipeline elements, and discloses a truss overflowing type three-eccentric center butterfly valve. The truss overflowing type three-eccentric center butterfly valve comprises a valve seat, a valve plate cooperated with the valve seat and a truss assembly arranged on a upstream face of the valve plate. The truss assembly comprises two vertical plates oppositely and vertically arranged on the upstream face of the valve plate, a transverse plate connected between the two vertical plates and two inclined plates oppositely and obliquely arranged between the transverse plate and the valve plate. By using the truss overflowing type three-eccentric center butterfly valve, the truss assembly is arranged on the upstream face of the valve plate so that pressure of a overflow surface of the valve plate can be effectively reduced and a pressure bearing capacity of a upstream portion of the valve plate is improved; and especially for a contact portion of a sealing surface between the valve plate and the valve seat, through reduction of the pressure of the contact portion, abrasion of the valve plate can be relieved to a certain extent, and sealing reliability after the butterfly valve is closed is guaranteed.

Description

technical field [0001] The invention relates to the field of pressure pipeline components, in particular to a truss flow-through triple-eccentric butterfly valve. Background technique [0002] Butterfly valve, also known as flap valve, is a flow regulating valve with simple structure, which can be used for switch control of low-pressure pipeline medium. A closed valve. Among them, the shaft center of the valve stem deviates from the center of the valve plate (butterfly plate) and the center of the body at the same time, and the rotation axis of the valve seat has a certain angle with the axis of the valve body channel, which is called a triple eccentric butterfly valve. Triple eccentric butterfly valves are widely used in metallurgy, electric power, petrochemical, water supply and drainage, and municipal construction industrial pipelines where the medium temperature is less than 425°C, and are used for regulating flow and carrying and breaking fluid. [0003] However, in t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/226F16K1/42F16K1/36F16K1/32
CPCF16K1/226F16K1/42F16K1/36F16K1/32
Inventor 韦彦强何世权季雷雷刘帅帅吴倩倩王佳琪张锦
Owner NANJING UNIV OF TECH