CN203549034U - Ceramic abrasion resistance throttling valve - Google Patents

Ceramic abrasion resistance throttling valve Download PDF

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Publication number
CN203549034U
CN203549034U CN201320675388.6U CN201320675388U CN203549034U CN 203549034 U CN203549034 U CN 203549034U CN 201320675388 U CN201320675388 U CN 201320675388U CN 203549034 U CN203549034 U CN 203549034U
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CN
China
Prior art keywords
valve
pressure release
valve rod
spool
release valve
Prior art date
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Active
Application number
CN201320675388.6U
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Chinese (zh)
Inventor
王忱
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shengkai (Tianjin) Industrial Co. Ltd.
Original Assignee
TIANJIN SHENGKAI INDUSTRIAL TECHN DEVELOPMENT Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by TIANJIN SHENGKAI INDUSTRIAL TECHN DEVELOPMENT Co Ltd filed Critical TIANJIN SHENGKAI INDUSTRIAL TECHN DEVELOPMENT Co Ltd
Priority to CN201320675388.6U priority Critical patent/CN203549034U/en
Application granted granted Critical
Publication of CN203549034U publication Critical patent/CN203549034U/en
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Abstract

The utility model relates to a ceramic abrasion resistance throttling valve, and belongs to valve types. A fluid inlet channel and a fluid outlet channel of a valve body are vertically arranged in a staggered mode and are communicated with each other through a throttling port. The throttling port is provided with a sealing step, a valve element is arranged in the fluid inlet channel of the valve body, the bottom of the valve element is of a wedge-shaped structure which is matched with the sealing step of the throttling port, the upper portion of the valve element is provided with a limiting block, a limiting cavity is formed in the limiting block, a pressure release valve way is arranged inside the valve element, a rotating valve rod is internally provided with a pressure release valve rod way, the lower portion of the rotating valve rod is connected with a pressure release valve rod in a screwed mode, the pressure release valve rod can be screwed in or out of the pressure release valve rod way, a limiting ring is arranged on the pressure release valve rod and located in the limiting cavity, a spring and an annular cushion block are arranged between the limiting ring and the valve element in an abutted mode, the lower portion of the pressure release valve rod stretches into the pressure release valve way of the valve element, and the lower end of the pressure release valve rod is provided with a pressure release valve element. The ceramic abrasion resistance throttling valve has the advantages of being good in sealing performance and long in service life and saving energy during the opening process.

Description

A kind of ceramic wear-resisting throttle valve
Technical field
The utility model belongs to a kind of valve, particularly a kind of ceramic wear-resisting throttle valve.
Background technique
In use, the impurity in fluid and particle etc. are larger to the destruction of sealing surface for existing throttle valve, and this valve in use for some time, easily occurs seal failure.So existing throttle valve working life is short, reliability is low.As existing throttle valve is used in the pipeline of high-velocity fluid, more easily there is seal failure.In addition, existing throttle valve does not have pressure release passage, and valve opening and closing moment of torsion is large, and operation effort, as used electro-pneumatic device, has increased cost greatly.
Summary of the invention
The purpose of this utility model is to design a kind of ceramic wear-resisting throttle valve, increases the service life, and reduces the open and close torque of valve, makes operation more laborsaving.
The purpose of this utility model is achieved through the following technical solutions: a kind of ceramic wear-resisting throttle valve, it comprises handle, rotation valve rod, valve gap and valve body, handle is connected with rotation valve rod, valve gap is placed on valve body top, it is characterized in that: it also comprises ceramic valve core, pressure release valve rod and pressure releasing valve core, valve body comprises fluid inlet passage and fluid flow pass, fluid inlet passage and fluid flow pass shift to install up and down, two passages are communicated with by restriction, restriction is provided with sealed step, spool is arranged in the fluid inlet passage of valve body, the bottom of spool is wedge-shaped structure, this wedge-shaped structure mates identical with the sealed step of restriction, the top of spool is provided with limiting stopper, in limiting stopper, be provided with limit chamber, in spool, be provided with Decompression valves road, in rotation valve rod, be provided with pressure release valve rod road, the bottom of the rotation valve rod pressure release valve rod that spins, this pressure release valve rod can screw in or screw out pressure release valve rod road, pressure release valve rod is provided with limited ring, limited ring is positioned at limit chamber, top shock mount and annular cushion block between limited ring and spool, the bottom of pressure release valve rod is inserted in the Decompression valves road of spool, the lower end of pressure release valve rod is provided with pressure releasing valve core.
Flow indicator collet is equipped with at the top of said valve gap.
Said ceramic valve core is zirconia-based ceramics spool, alumina-based ceramic spool, types of silicon carbide-based ceramics spool, mullite-based ceramic spool or silicon-nitride-based ceramic spool.
Advantage of the present utility model and beneficial effect are:
1, ceramic valve core adopts bulk ceramics material to make, and has greatly extended the working life of valve seat.
2, increased Decompression valves road, Decompression valves trace interpolation enters pressure release valve rod, pressure releasing valve core is installed in the lower end of pressure release valve rod, has greatly reduced keying moment, makes operation more easy.
3, this throttle valve is under opening state, due to the flex point place of sealing surface in sealed step, therefore, ducted rate of flow of fluid is less at this place, impurity in fluid and particle etc. are to a little less than the destruction of sealing surface, and sealing surface adopts structural ceramic material, and wear-resisting property is good, delay well its seal failure time, extended the reliability of working life and sealing.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is schematic diagram under the A-A section opening state of Fig. 1.
Fig. 3 is the structural representation under the closed condition of Fig. 2.
Wherein: 1-handle, 2-valve gap, 3-valve body, 4-flow indicator collet, 5-pressure release valve rod road, 6-pressure release valve rod, 7-limiting stopper, 8-annular cushion block, 9-pressure releasing valve core, 10-ceramic valve core, 11-sealed step, 12-wedge-shaped structure, 13-Decompression valves road, 14-spring, 15-limited ring, 16-rotation valve rod, 17-outside thread, 18-limit chamber, 19-sealing surface, 20-upper chamber, 21-restriction.
Embodiment
Below in conjunction with concrete drawings and Examples, the utility model is further illustrated.
As shown in the figure, a kind of ceramic wear-resisting throttle valve, it comprises handle 1, rotation valve rod 16, valve gap 2 and valve body 3, handle 1 is connected with rotation valve rod 16, valve gap 2 is placed on valve body 3 tops, it also comprises ceramic valve core 10, pressure release valve rod 6 and pressure releasing valve core 9, valve body 3 comprises fluid inlet passage A and fluid flow pass B, fluid inlet passage A and fluid flow pass B shift to install up and down, two passages are communicated with by restriction 21, throttling passage is provided with sealed step 11, spool 10 is arranged in the fluid access way B of valve body 3, the bottom of spool 10 is wedge-shaped structure 12, this wedge-shaped structure 12 coincide with the sealed step 11 of restriction 21, when wedge-shaped structure 12 is when the sealing surface of sealed step 11 is combined, this throttling valve seal, the top of spool 10 is provided with limiting stopper 7, in limiting stopper 7, be provided with limit chamber 18, in spool 10, be provided with Decompression valves road 13, in rotation valve rod 16, be provided with pressure release valve rod road 5, the bottom of rotation valve rod 16 is provided with internal thread, the top of pressure release valve rod 6 is provided with outside thread 17, the external thread rotary of pressure release valve rod 6 is on the internal thread of rotation valve rod 16, this pressure release valve rod 6 can screw in or screw out pressure release valve rod road 5, pressure release valve rod 6 is provided with limited ring 15, limited ring 15 is positioned at limit chamber 18, top shock mount 14 and annular cushion block 8 between limited ring 15 and spool 10, the bottom of pressure release valve rod 6 is inserted in the Decompression valves road 13 of spool 10, the lower end of pressure release valve rod 6 is provided with pressure releasing valve core 9, flow indicator collet 4 is equipped with at the top of valve gap 2.
Said ceramic valve core is zirconia-based ceramics spool, alumina-based ceramic spool, types of silicon carbide-based ceramics spool, mullite-based ceramic spool or silicon-nitride-based ceramic spool.
Working principle of the present utility model is: in off position, clockwise rotate handle 1, the rotation valve rod 16 of valve gap 2 inside rotates thereupon, the pressure release valve rod 6 being connected with rotation valve rod 16 is pulled upward, and the pressure releasing valve core 9 of pressure release valve rod 6 lower ends is opened, along with the rotation of handle 1, pressure release valve rod 6 tops are to limiting stopper 7, and drive limiting stopper 7 and spool 10 entirety to move upward, and the seal failure of sealing surface 19 between spool 10 and valve body 3, throttle valve is opened.Owing to having completed pressure release action in spool 10 upper chamber 20, therefore pressure balance on spool 10, handle 1 drives pressure release valve rod 6 easily spool 10 to be mentioned, and completes breakdown action, and can monitor valve flow size by flow indicator collet 4, thereby regulate pipeline flow.
Under this throttle valve opening state, counterclockwise handle with sleeve 1, make pressure releasing valve core 9 contact and seal with spool 10, be rotated further handle 1, pressure release valve rod 6 reaches lower limit and is with movable valve plug 10 simultaneously to sealing surface 19 direction motions, and finally complete spool 10 contact with valve body 3 airtight, realize sealing.

Claims (3)

1. a ceramic wear-resisting throttle valve, it comprises handle, rotation valve rod, valve gap and valve body, handle is connected with rotation valve rod, valve gap is placed on valve body top, it is characterized in that: it also comprises ceramic valve core, pressure release valve rod and pressure releasing valve core, valve body comprises fluid inlet passage and fluid flow pass, fluid inlet passage and fluid flow pass shift to install up and down, two passages are communicated with by restriction, restriction is provided with sealed step, spool is arranged in the fluid inlet passage of valve body, the bottom of spool is wedge-shaped structure, this wedge-shaped structure mates identical with the sealed step of restriction, the top of spool is provided with limiting stopper, in limiting stopper, be provided with limit chamber, in spool, be provided with Decompression valves road, in rotation valve rod, be provided with pressure release valve rod road, the bottom of the rotation valve rod pressure release valve rod that spins, this pressure release valve rod can screw in or screw out pressure release valve rod road, pressure release valve rod is provided with limited ring, limited ring is positioned at limit chamber, top shock mount and annular cushion block between limited ring and spool, the bottom of pressure release valve rod is inserted in the Decompression valves road of spool, the lower end of pressure release valve rod is provided with pressure releasing valve core.
2. a kind of ceramic wear-resisting throttle valve as claimed in claim 1, is characterized in that: flow indicator collet is equipped with at the top of said valve gap.
3. a kind of ceramic wear-resisting throttle valve as claimed in claim 1, is characterized in that: said ceramic valve core is zirconia-based ceramics spool, alumina-based ceramic spool, types of silicon carbide-based ceramics spool, mullite-based ceramic spool or silicon-nitride-based ceramic spool.
CN201320675388.6U 2013-10-30 2013-10-30 Ceramic abrasion resistance throttling valve Active CN203549034U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320675388.6U CN203549034U (en) 2013-10-30 2013-10-30 Ceramic abrasion resistance throttling valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320675388.6U CN203549034U (en) 2013-10-30 2013-10-30 Ceramic abrasion resistance throttling valve

Publications (1)

Publication Number Publication Date
CN203549034U true CN203549034U (en) 2014-04-16

Family

ID=50467152

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320675388.6U Active CN203549034U (en) 2013-10-30 2013-10-30 Ceramic abrasion resistance throttling valve

Country Status (1)

Country Link
CN (1) CN203549034U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108329035A (en) * 2018-02-06 2018-07-27 中国科学院上海硅酸盐研究所 Silicon carbide ceramic valve core and preparation method thereof
CN111827927A (en) * 2020-07-08 2020-10-27 成都天晨压缩机制造有限公司 Liquid impact prevention device of equipment for gathering and transporting liquid-containing oil wellhead gas in desert oil field

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108329035A (en) * 2018-02-06 2018-07-27 中国科学院上海硅酸盐研究所 Silicon carbide ceramic valve core and preparation method thereof
CN111827927A (en) * 2020-07-08 2020-10-27 成都天晨压缩机制造有限公司 Liquid impact prevention device of equipment for gathering and transporting liquid-containing oil wellhead gas in desert oil field

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20160623

Address after: 300308 No. 106 South Central Road, Tianjin Airport Economic Zone

Patentee after: Shengkai (Tianjin) Industrial Co. Ltd.

Address before: In 300308 the Binhai New Area of Tianjin Airport Economic Zone No. 106

Patentee before: Tianjin Shengkai Industrial Techn Development Co., Ltd.