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

Pressure valve

A technology of pressure valve and valve body, which is applied in the field of pressure valve to meet the requirements of strength, vacuum sealing, high pressure resistance and performance improvement.

Active Publication Date: 2011-07-20
费海鸿
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The market demand for pressure valves is becoming more and more urgent, but currently there are no manufacturers of such valves in China

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
  • Pressure valve
  • Pressure valve
  • Pressure valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] Such as figure 1 As shown, an embodiment of the present invention includes a valve body 1, a valve plate 2, a valve stem 3, a valve cover 4, a pressure ring 5, a key 6, a protective cover 7, a compression nut 8, a position indicating ring 9, and a signal device 10 , connecting piece 11, cylinder 12 and combination seal 13.

[0028] The valve body 1 is provided with a water-cooled jacket casing 1-4, the middle port is connected to the vacuum electric furnace port, the lower port is connected to the vacuum pump port, and the upper port is sealed by the valve cover 4 . The valve body 1 includes a middle-mouth flange 1-1, a middle-mouth connecting pipe 1-2, a valve body pipe 1-3 and a water-cooled jacket casing 1-4. The middle flange 1-1 is provided with a screw hole and the end face is provided with a trapezoidal groove preventing a seal 14-g, and the middle mouth of the valve body 1 is sealed and connected with the electric furnace interface through the middle flange 1-1...

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 discloses a pressure valve, which comprises a valve body, a valve plate, a valve stem, a valve cover, a pneumatic drive device, and a connecting piece, wherein a lower opening of the valve body is used for connecting a vacuum pump, while a middle opening is used for connecting a vacuum electric furnace; a water cooling jacket sleeve is coated on the periphery of the valve body; the valve plate is used for sealing a valve seat platform in the valve body so as to realize the closing and the opening of the valve; the lower end of the valve stem is connected with the valve plate; the valve cover seals an upper opening of the valve body, and the joint of the valve cover and the valve body is in vacuum seal; the pneumatic drive device is used for driving the valve stem to move so as to open and close the valve; the connecting piece is connected with the pneumatic drive device and the valve cover; and if a normal working condition is taken as a reference, the valve body, the valve cover, the connecting piece and the pneumatic drive device are arranged upwards from the bottom in turn in a vertical direction, the upper end of the valve stem runs through the valve cover and the connecting piece and then is connected with the pneumatic drive device, and the joint of the valve stem and the valve cover is in vacuum seal.

Description

technical field [0001] The invention relates to a valve used in an electric furnace system where vacuum and pressure coexist, in particular to a valve suitable for use in a vacuum sintering pressure furnace. Background technique [0002] The pressure valve is an essential and key valve in the vacuum pressure electric furnace. It plays an important role in the cemented carbide powder sintering metallurgy, so it is widely used in the vacuum pressure electric furnace industry. [0003] Usually, cemented carbide powder sintering metallurgy is vacuum sintered first, and then pressurized and compacted to improve the performance of cemented carbide. In this way, the valve has both vacuum sealing requirements, high pressure resistance strength requirements, high temperature resistance and water cooling requirements. That is to say, stress analysis and calculation must be carried out for each part of the valve, especially under high temperature and high pressure, the material stress...

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 Patents(China)
IPC IPC(8): F16K49/00F16K1/36F16K1/48F16K37/00F16K41/00F16K51/02F16K27/12F16K31/122
Inventor 费海鸿
Owner 费海鸿