CN1611817A - Double-clamping high-temperature-high-corrosion-resistance butterfly valve - Google Patents

Double-clamping high-temperature-high-corrosion-resistance butterfly valve Download PDF

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Publication number
CN1611817A
CN1611817A CN 200310108281 CN200310108281A CN1611817A CN 1611817 A CN1611817 A CN 1611817A CN 200310108281 CN200310108281 CN 200310108281 CN 200310108281 A CN200310108281 A CN 200310108281A CN 1611817 A CN1611817 A CN 1611817A
Authority
CN
China
Prior art keywords
valve
butterfly
mandrel
sealing
speed reducer
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN 200310108281
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Chinese (zh)
Inventor
季祝华
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.)
Shanghai Haixing Valve General Factory
Original Assignee
Shanghai Haixing Valve General Factory
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.)
Filing date
Publication date
Application filed by Shanghai Haixing Valve General Factory filed Critical Shanghai Haixing Valve General Factory
Priority to CN 200310108281 priority Critical patent/CN1611817A/en
Publication of CN1611817A publication Critical patent/CN1611817A/en
Pending legal-status Critical Current

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Abstract

The invention provides a clip-type high-temperature and highly corrosion resistant butterfly valve. In the existing valve, the pivot connects with the butterfly board machinery. There is closed stainless steel material on the butterfly board. The butyl clip plumbago layer is treated with special technique during the production, is featured by high temperature resistance, corrosion resistance and long useful life and is adaptable to the impingement from the liquid with low-middle pressure. It is featured by large circulation area, small coefficient of flow resistance, compact structure, beautiful appearance, small volume, light weight, minimum open and close moment, simple installation and maintenance and flexible operation and can replace the gate valve and the break valve. It is widely applied to: petrifaction, coal gas, natural gas, thermoelectricity, hydraulic power plant, municipal construction, tap water, pharmacy, food and other projects and especially to the pipeline transportation with zero leakage.

Description

The wafer type high temperature high corrosion resistant butterfly valve
The present invention relates to improved butterfly valve on a kind of industrial pipeline, be that a kind of body approaches and a kind of butterfly valve of ability≤455 ℃ high temperature liquid, the butterfly valve on the existing pipeline is as slim line with rubber, lining fluorine butterfly valve, because of sealing material ability temperature liquid more than 120 ℃ not, can only limit below 120 ℃ and use, as residue is arranged in the pipeline transport, granular, flow velocity is fast, has crashed through sealing material, can not seal.
The objective of the invention is: a kind of wafer type high temperature high corrosion resistant butterfly valve is provided, it is in existing valve body, mandrel and butterfly plate mechanical connection, the sealing that increases on the butterfly plate are paid and are selected stainless steel material for use, and butyl folder graphite layer is also carried out special process and handled in manufacture process, have high temperature resistant, anticorrosive, the characteristics of long service life adapt to the impact of the liquid of low middle pressure, circulation area is big, flow resistance coefficient is little, and compact structure is aesthetic in appearance, volume is little, in light weight, hoisting capacity is convenient to I﹠M apart from reducing to minimum, flexible operation, this valve are the update products that substitutes gate valve and stop valve.
The present invention has the following advantages: a kind of wafer type high temperature high corrosion resistant butterfly valve, include body, this body has the control speed reducer, mandrel, the valve body mechanical connection, become one group of sealing to pay a butterfly plate to be connected on the mandrel with stainless steel and butyl horsestone China ink is laminated with bolt machinery, characteristics with corrosion-and high-temp-resistant, butterfly plate has cam action and except all contact frictions between Sealing in valve stroke and the valve seat, making it frequent keying is the sealing effect that still has all the time, seal ring contacts with valve seat with certain wrapping angle, face is equivalent to an elongated wedge again around centering on it equably, and make active force be evenly distributed on the valve seat fully, owing to be that valve seat is stressed, so valve does not promptly need mechanical position-arresting device when cutting out.
This valve can isolate fire and play anti-fire action when cutting out, be widely used in: petrochemical industry, and coal gas, rock gas, thermoelectricity, the water power plant, urban construction, tap water, pharmacy, engineerings such as food are particularly used on the pipeline transport engineering with the particle zero leakage.
The present invention is easy to use, exchanges and installs lightly, and its weight only is 1/3 of gate valve and stop valve, has therefore reduced cost greatly.
Fig. 1 is the longitudinal sectional drawing of a kind of concrete structure of the present invention.
Describe details and the working condition that proposes concrete structure according to the present invention in detail below in conjunction with Fig. 1.
This invention connects mandrel (2) by control speed reducer (1), make with stainless steel material, the synthetic one group of butterfly plate (3) of multi-disc stainless steel folder butyl graphite flake, be fastened on the mandrel (2) by stainless steel bolt, valve body (4) sealing surface and butterfly plate (3) sealing coupling, reaching sealing purpose, and three off-centre not fixedly the stop bit device just can seal, the special adaptation, use on pipeline.

Claims (1)

  1. A kind of wafer type high temperature high corrosion resistant butterfly valve, by the control speed reducer, connect mandrel, one group of butterfly plate, compositions such as wafer type valve body, it is characterized in that: control speed reducer and mandrel mechanical connection, control speed reducer and wafer type valve body mechanical connection, become one group of sealing to pay a butterfly plate to be connected on the mandrel with stainless steel and butyl horsestone China ink is laminated with bolt machinery, butterfly plate has cam action and except all contact frictions between Sealing in valve stroke and the valve seat, making it frequent keying is the sealing effect that still has all the time, seal ring contacts with valve seat with certain wrapping angle, face is equivalent to an elongated wedge again around centering on it equably, and makes active force be evenly distributed on the valve seat fully.
CN 200310108281 2003-10-30 2003-10-30 Double-clamping high-temperature-high-corrosion-resistance butterfly valve Pending CN1611817A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200310108281 CN1611817A (en) 2003-10-30 2003-10-30 Double-clamping high-temperature-high-corrosion-resistance butterfly valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200310108281 CN1611817A (en) 2003-10-30 2003-10-30 Double-clamping high-temperature-high-corrosion-resistance butterfly valve

Publications (1)

Publication Number Publication Date
CN1611817A true CN1611817A (en) 2005-05-04

Family

ID=34758536

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200310108281 Pending CN1611817A (en) 2003-10-30 2003-10-30 Double-clamping high-temperature-high-corrosion-resistance butterfly valve

Country Status (1)

Country Link
CN (1) CN1611817A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106870864A (en) * 2017-04-25 2017-06-20 姜丽莉 A kind of pipe flow speed control structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106870864A (en) * 2017-04-25 2017-06-20 姜丽莉 A kind of pipe flow speed control structure

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C06 Publication
PB01 Publication
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication