CN108036074A - A kind of large-scale intelligent Pneumatic round-top valve - Google Patents

A kind of large-scale intelligent Pneumatic round-top valve Download PDF

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Publication number
CN108036074A
CN108036074A CN201711407753.4A CN201711407753A CN108036074A CN 108036074 A CN108036074 A CN 108036074A CN 201711407753 A CN201711407753 A CN 201711407753A CN 108036074 A CN108036074 A CN 108036074A
Authority
CN
China
Prior art keywords
valve body
rubber seal
valve
inner ring
scale intelligent
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
CN201711407753.4A
Other languages
Chinese (zh)
Inventor
马建民
窦志明
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.)
TIANJIN TNPL ENVIRONMENTAL ENGINEERING Co Ltd
Original Assignee
TIANJIN TNPL ENVIRONMENTAL ENGINEERING 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.)
Filing date
Publication date
Application filed by TIANJIN TNPL ENVIRONMENTAL ENGINEERING Co Ltd filed Critical TIANJIN TNPL ENVIRONMENTAL ENGINEERING Co Ltd
Priority to CN201711407753.4A priority Critical patent/CN108036074A/en
Publication of CN108036074A publication Critical patent/CN108036074A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/16—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
    • F16K37/0083—For recording or indicating the functioning of a valve in combination with test equipment by measuring valve parameters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
    • F16K37/0091—For recording or indicating the functioning of a valve in combination with test equipment by measuring fluid parameters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0663—Packings
    • F16K5/0668—Single packings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0663—Packings
    • F16K5/0689—Packings between housing and plug
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details
    • F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
    • F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
    • F16K5/205—Sealing effected by the flowing medium

Abstract

The present invention relates to a kind of large-scale intelligent Pneumatic round-top valve, including spool, lower valve body, middle valve body, upper valve body, rubber seal and sealing inner ring, the left and right sides of the spool with segment-shaped valve face is fixed in lower valve body by axis one and axis two respectively；Upper valve body and middle valve body are fixed at the top of lower valve body by sunk screw, secure a rubber seal between the two, and middle valve body, upper valve body, rubber seal form internal closed space；The sealing inner ring of multiple filling channels is provided with inside rubber seal comprising a circumferential direction, each filling channel made in inner ring is sealed and is connected with internal closed space；Upper valve body is provided with blanket gas passage, which connects with internal closed space.Large-scale intelligent Pneumatic round-top valve provided by the invention, extends the service life of valve, reduces maintenance frequency and cost, has filled up bulk material and has loaded the blank that this field lacks big orifice valve.

Description

A kind of large-scale intelligent Pneumatic round-top valve
Technical field
The present invention relates to material transport technique field, especially a kind of large-scale intelligent Pneumatic round-top valve.
Background technology
Dome valve is a kind of special valve for being widely used in bulk material and transporting field.China's circle currently in use at present Overhead-valve specification is realized by rubber seal pressurising generally between DN50~DN300, when its working status is closes and sealed, and is opened Unscrew again after sealing ring pressure release and spool disengage when opening.
Designed, manufactured and the experience using each specification dome valve for many years according to my company, the damage of dome valve in operation There are following several situations：1) pneumatic actuator action is not in place, valve seal failure；2) bleed pressure deficiency causes sealing ring close Seal pressure deficiency, valve seal fail, and cause sealing ring to wear rapidly in the case where air-flow carries the washing away of material and cause valve to damage； 3) valve is caused to damage since Control System Design is improper, pressurising is insufficient or with regard to mistake open to sealing ring pressure release Operation, causes valve to damage.
Application scenario for requiring material handling capacity bigger, such as stalk energy source regeneration apparatus, it is necessary to the valve of bigger Door latus rectum, and require the functional reliability for possessing higher.General latus rectum is known as large-scale dome valve more than DN400's.
For large-scale dome valve, the most common failure of dome valve script can all be run into, and device caused by valve damages stops Work is of high cost, and maintenance cost is expensive, it is therefore necessary to carries out targetedly design and avoids various unfavorable operating modes, ensures valve peace Entirely.
The content of the invention
It is an object of the invention to make up the deficiencies in the prior art part, there is provided a kind of reliable, service life length Large-scale intelligent Pneumatic round-top valve.
The purpose of the present invention is what is realized by following technological means：
A kind of large-scale intelligent Pneumatic round-top valve, it is characterised in that：Including spool, lower valve body, middle valve body, upper valve body, rubber Sealing ring and sealing inner ring, the left and right sides of the spool with segment-shaped valve face is fixed on lower valve body by axis one and axis two respectively On；Upper valve body and middle valve body are fixed at the top of lower valve body by sunk screw, secure a rubber seal between the two, in Valve body, upper valve body, rubber seal form internal closed space；Inside rubber seal multiple inflations are provided with comprising a circumferential direction The sealing inner ring of passage, seals each filling channel made in inner ring and is connected with internal closed space；Upper valve body is provided with Blanket gas passage, the blanket gas passage are connected with internal closed space.
Moreover, the overhanging position connection oscillation actuating mechanism of the axis two, which is pneumatic driving motivation Structure, the opening and closing position of the oscillation actuating mechanism each set a travel switch.
Moreover, the rubber seal is the rubber seal of C-shaped.
Moreover, the blanket gas passage connection pressure sensor, the pressure sensor are arranged on outside valve body.
Moreover, the lower valve body sidewall set temperature and manometer interface.
Moreover, the import of each filling channel made in the sealing inner ring all extends to the outside of rubber seal And connected with internal closed space, the outlet of each filling channel is respectively positioned on inside rubber seal.
The advantages and positive effects of the present invention are：
1st, large-scale intelligent Pneumatic round-top valve provided by the invention, has filled up bulk material and loads this field and lack big orifice The blank of valve.Valve can drive according to switching value electric signal, and it is smooth, reliable to have the advantages that material passes through.
2nd, large-scale intelligent control system Pneumatic round-top valve provided by the invention, can real-time display valve working state, for May influence the unfavorable factor of valve normal work can find and report in time, avoid equipment from running reduction valve in spite of wound and use the longevity Life.
3rd, large-scale intelligent control system Pneumatic round-top valve provided by the invention, has online fault detection capability, can be effective Operation maintenance personnel's work efficiency is improved, knotty problem can also carry out remote diagnosis by network.
4th, the present invention sealed using compressed air, compressed air by blanket gas passage entrance in valve body, upper valve body, The internal closed space that rubber seal is formed, is applied to inside rubber seal through sealing inner ring, makes sealing ring to spool Sphere direction expands, so as to fulfill the sealing isolation of both sides above and below valve.The sealing means are simple and convenient and sealing effect is good.
5th, the present invention solves the problems, such as the stability that present in existing dome valve, ensure that equipment operation, extends valve Door service life, reduce maintenance frequency and cost, suitable for latus rectum more than DN400 large-scale dome valve.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention.
Embodiment
Below in conjunction with the accompanying drawings in detail narration the embodiment of the present invention, it is necessary to explanation, the present embodiment be it is narrative, no It is limited, it is impossible to which protection scope of the present invention is limited with this.
A kind of large-scale intelligent Pneumatic round-top valve, including spool 3, lower valve body 9, middle valve body 6, upper valve body 7, rubber seal 5 With sealing inner ring 4.The left and right sides of spool with segment-shaped valve face is fixed on lower valve body by axis 1 and axis 2 12 respectively On, between axis one and lower valve body, connected and installed by seal assembly between axis two and lower valve body.The overhanging position 13 of axis two connects Oscillation actuating mechanism, the oscillation actuating mechanism are pneumatic drive mechanism, and spool can be made to illustrate and turn off position and be rotated by 90 ° two Kind state switching (Fig. 1 show the valve-closed state).The opening and closing position of the oscillation actuating mechanism each sets one A travel switch, for whether in place to detect spool.
Upper valve body and middle valve body are fixed at the top of lower valve body by sunk screw 1, and it is close to secure a rubber between the two Seal, the rubber seal are the rubber seal of C-shaped, and the madial wall top pressure of the rubber seal is on spool.Rubber seal The internal sealing inner ring that multiple filling channels 2 are provided with comprising a circumferential direction of circle.In middle valve body, upper valve body, rubber seal are formed Portion's enclosure space, seal made each filling channel in inner ring import all extend to rubber seal outside and with inside Enclosure space connects, and the outlet of each filling channel is respectively positioned on inside rubber seal.
Upper valve body is provided with blanket gas passage 8, which connects with internal closed space, and it is empty can to access compression Gas, and pressure sensor is installed, which is arranged on outside valve body.Valve during compressed air is entered by blanket gas passage The internal closed space that body, upper valve body, rubber seal are formed, is applied to inside rubber seal through sealing inner ring, makes close Seal is expanded to spool sphere direction, so as to fulfill the sealing isolation of both sides above and below valve.The spy of rubber sealing ring compressive deformation Property make it that even if having partial material to be attached on sealing surface nor affects on valve seal effect.
Before valve shutoff operation, first pass through blanket gas passage and spool sphere, Ran Houfa are departed to sealing ring pressure release, sealing ring Door swing actuator action, driving spool are opened.
Lower valve body sidewall set temperature and manometer interface 11, for detecting the pressure inside valve-closed state equipment And temperature.
The present invention operation principle be：
Large-scale intelligent Pneumatic round-top valve through development, by the way of multiple spot operating parameter is monitored, it is ensured that valve runs work The stabilization of condition, extends valve service life.
Valve carries out valve according to an on-off model and opens and closes operation.The signal of all monitorings is according to actual need To be connected to programmable controller by the way of analog quantity or output switch parameter, can be equipped with as needed operating status show, Storage, on the spot and the various functions such as remote control, on-line fault diagnosis, such as：
1) under valve-closed state, periodic detection simultaneously records temperature and pressure in the container of valve high-pressure side.More than setting temperature Degree palpus and alarm, avoid sealing ring high temperature failure.
2) pneumatic actuator must detect before carrying out valve opening action and record container under sealing ring seal pressure and valve Pressure, means sealing ring or the insufficient risk for having damage sealing ring of container decompression beyond respective setting pressure, must send out in time Go out alarm.After opening operation, the travel switch such as without triggering valve open position, must send alarm in time.
3) pneumatic actuator carry out valve shutoff operation after, such as without triggering valve-closed position travel switch, palpus and When send alarm；As triggered closed position travel switch in time, sealing ring inflation, delay detects and to record sealing ring close Seal pressure, as hypotony can influence valve obturation effect and increase sealing ring breakage risk, must send alarm in time.

Claims (6)

  1. A kind of 1. large-scale intelligent Pneumatic round-top valve, it is characterised in that：It is close including spool, lower valve body, middle valve body, upper valve body, rubber Seal and sealing inner ring, the left and right sides of the spool with segment-shaped valve face is fixed on lower valve body by axis one and axis two respectively On；Upper valve body and middle valve body are fixed at the top of lower valve body by sunk screw, secure a rubber seal between the two, in Valve body, upper valve body, rubber seal form internal closed space；Inside rubber seal multiple inflations are provided with comprising a circumferential direction The sealing inner ring of passage, seals each filling channel made in inner ring and is connected with internal closed space；Upper valve body is provided with Blanket gas passage, the blanket gas passage are connected with internal closed space.
  2. A kind of 2. large-scale intelligent Pneumatic round-top valve according to claim 1, it is characterised in that：The over-hang part of the axis two Position connection oscillation actuating mechanism, which is pneumatic drive mechanism, the opening and closing position of the oscillation actuating mechanism Put and a travel switch is each set.
  3. A kind of 3. large-scale intelligent Pneumatic round-top valve according to claim 1, it is characterised in that：The rubber seal is The rubber seal of C-shaped.
  4. A kind of 4. large-scale intelligent Pneumatic round-top valve according to claim 1, it is characterised in that：The blanket gas passage connects Pressure sensor is connect, which is arranged on outside valve body.
  5. A kind of 5. large-scale intelligent Pneumatic round-top valve according to claim 1, it is characterised in that：The lower valve body sidewall is set Put temperature and pressure instrumentation tap.
  6. A kind of 6. large-scale intelligent Pneumatic round-top valve according to claim 1, it is characterised in that：Institute in the sealing inner ring The import of each filling channel of system all extends to the outside of rubber seal and is connected with internal closed space, and each inflation is logical The outlet in road is respectively positioned on inside rubber seal.
CN201711407753.4A 2017-12-22 2017-12-22 A kind of large-scale intelligent Pneumatic round-top valve Pending CN108036074A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711407753.4A CN108036074A (en) 2017-12-22 2017-12-22 A kind of large-scale intelligent Pneumatic round-top valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711407753.4A CN108036074A (en) 2017-12-22 2017-12-22 A kind of large-scale intelligent Pneumatic round-top valve

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CN108036074A true CN108036074A (en) 2018-05-15

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CN201711407753.4A Pending CN108036074A (en) 2017-12-22 2017-12-22 A kind of large-scale intelligent Pneumatic round-top valve

Country Status (1)

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CN (1) CN108036074A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2628822Y (en) * 2003-05-28 2004-07-28 启东市冶金机械厂 Pressurizing sealing half-ball valve
CN2846924Y (en) * 2005-08-12 2006-12-13 天津市纽普兰环保发展有限公司 Reverse seal type round dome valve
CN2920925Y (en) * 2006-07-25 2007-07-11 天津市纽普兰环保发展有限公司 Balancing device for material transferring system
US20110146808A1 (en) * 2009-12-18 2011-06-23 Cameron International Corporation Bi-Directional Valve with Cavity Pressure Relief
CN203963089U (en) * 2014-07-10 2014-11-26 浙江固特气动机械有限公司 A kind of dome valve
CN204647388U (en) * 2015-03-31 2015-09-16 奥星制药设备（石家庄）有限公司 A kind of pneumatic actuator semispherical valve
CN207830608U (en) * 2017-12-22 2018-09-07 天津市纽普兰环保发展有限公司 Large-scale intelligent Pneumatic round-top valve

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2628822Y (en) * 2003-05-28 2004-07-28 启东市冶金机械厂 Pressurizing sealing half-ball valve
CN2846924Y (en) * 2005-08-12 2006-12-13 天津市纽普兰环保发展有限公司 Reverse seal type round dome valve
CN2920925Y (en) * 2006-07-25 2007-07-11 天津市纽普兰环保发展有限公司 Balancing device for material transferring system
US20110146808A1 (en) * 2009-12-18 2011-06-23 Cameron International Corporation Bi-Directional Valve with Cavity Pressure Relief
CN203963089U (en) * 2014-07-10 2014-11-26 浙江固特气动机械有限公司 A kind of dome valve
CN204647388U (en) * 2015-03-31 2015-09-16 奥星制药设备（石家庄）有限公司 A kind of pneumatic actuator semispherical valve
CN207830608U (en) * 2017-12-22 2018-09-07 天津市纽普兰环保发展有限公司 Large-scale intelligent Pneumatic round-top valve

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