CN103821965A - High-pressure heater three-way valve driven by inner high-pressure piston - Google Patents

High-pressure heater three-way valve driven by inner high-pressure piston Download PDF

Info

Publication number
CN103821965A
CN103821965A CN201410044551.8A CN201410044551A CN103821965A CN 103821965 A CN103821965 A CN 103821965A CN 201410044551 A CN201410044551 A CN 201410044551A CN 103821965 A CN103821965 A CN 103821965A
Authority
CN
China
Prior art keywords
valve
pressure
way valve
adds
piston
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
CN201410044551.8A
Other languages
Chinese (zh)
Inventor
万胜军
邹世浩
王勇
胡松柏
李红梅
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.)
HARBIN POWER PLANT VALVE CO Ltd
Original Assignee
HARBIN POWER PLANT VALVE 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 HARBIN POWER PLANT VALVE CO Ltd filed Critical HARBIN POWER PLANT VALVE CO Ltd
Priority to CN201410044551.8A priority Critical patent/CN103821965A/en
Publication of CN103821965A publication Critical patent/CN103821965A/en
Pending legal-status Critical Current

Links

Images

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
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
    • F16K11/044—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats
    • 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
    • F16K37/0025—Electrical or magnetic means
    • F16K37/0041—Electrical or magnetic means for 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
    • 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
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • 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
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

The invention discloses a high-pressure heater three-way valve driven by an inner high-pressure piston and belongs to the field of thermal power valves. The high-pressure heater three-way valve driven by the inner high-pressure piston comprises a valve body, a valve clack, an upper valve seat, a valve cover, a high-pressure piston, a spring energy storage ring, a throttling sleeve, a travel switch and the like. A quartering-free pressure ring seal structure is adopted between the valve body and the valve cover, a pressure self-tightening seal structure is adopted for the upper valve seat, the throttling sleeve is arranged in the valve and used for throttling and pressure reduction, and the travel switch is arranged on a support. When a high-pressure heater fails, time of switching from a main way to a bypass of the valve is shorter than five seconds under the drive of the inner high-pressure piston, the high-pressure heater is disaggregated, and feedwater enters a boiler through the bypass. Quickness in switching from the main way to the bypass of the three-way valve is realized, position signals of a main way switch of the valve can be fed back, and the problem of pressure fluctuation during switching from the main way to the bypass is solved.

Description

The high three-way valve that adds of internal high-voltage piston actuated
Technical field
The present invention relates to the high three-way valve that adds of a kind of internal high-voltage piston actuated, belong to thermoelectricity valve field.
Background technique
Height adds three-way valve and is arranged on fired power generating unit inlet of high pressure heater pipeline, is the visual plant of protection high-pressure heater safe operation.When unit normally moves, high-pressure feed water enters high-pressure heater by entrance three-way valve, enters boiler through outlet three-way valve.In the time that high-pressure heater breaks down, require the high three-way valve that adds to close rapidly main road and open bypass, make high-pressure heater parallel off, feedwater is walked around high-pressure heater and is entered boiler through bypass.
At present, unit automation level of control requires more and more higher, requires after high-pressure heater parallel off, and the feed pressure that enters boiler is steady, and pressure is ripple disable almost; And require high-pressure heater parallel off and when operation to master-control room transmitted signal, while requiring high-pressure heater operation, three-way valve bypass valve base sealing is tight simultaneously; Current height adds three-way valve and is also difficult to meet above-mentioned requirements.
Summary of the invention
The defect existing for solving above-mentioned technology, the invention provides that a kind of main bypass is switched fast, seal tightly, enters the boiler feed water pressure high three-way valve that adds of a kind of internal high-voltage piston actuated stably when main road and bypass changeover.
For achieving the above object, the technical solution adopted in the present invention is: the present invention includes valve body (1), lower valve base (2), flap (3), orifice sleeve (4), upper valve base (5), piston rod (13), self-tightening seal ring (10), support (12), 0 type circle (14), spring energy-storage circle (15), position limit switch (20), valve gap (21), high pressure piston (24) etc.High pressure piston and piston rod are integral type structure, are connected with flap by flap gland.Flap and orifice sleeve are welded to connect, and lower valve base is welded on valve body, and upper valve base is connected with valve body by four cyclizations, pressure ring, pressing plate, selfsealings circle, hexagon head bolt.
The high three-way valve upper valve base that adds of described internal high-voltage piston actuated adopts pressure self-tightening sealing configuration.
The high three-way valve that adds of described internal high-voltage piston actuated, by internal high-voltage piston actuated, is realized feedwater switching to bypass by main road.
High valve body and the valve cover chamber that adds three-way valve of described internal high-voltage piston actuated adopts the pressure self-tightening sealing configuration without four cyclizations, pressure ring.
High relief hole place valve body and the valve cover chamber that adds three-way valve of described internal high-voltage piston actuated adopts spring energy-storage seal ring and 0 shape circle two seals structure.
High adding in three-way valve of described internal high-voltage piston actuated, is provided with orifice sleeve, plays expenditure and pressure effect in the time of medium by-passing.
The high three-way valve support that adds of described internal high-voltage piston actuated is provided with position limit switch, can feed back the position signal of valve main path switch.
The invention has the beneficial effects as follows: three-way valve is by internal high-voltage piston actuated, realize the quick switching that main road is opened to bypass, in valve, be provided with orifice sleeve, assurance is switched to that to enter boiler feed water pressure after bypass steady, position limit switch on support is the position signal of feedback valve gate switch accurately, is convenient to DCS system and automatically controls.
Accompanying drawing explanation
Fig. 1 is the high structural representation that adds three-way valve of internal high-voltage piston actuated
Fig. 2 is the high partial schematic diagram that adds three-way valve of internal high-voltage piston actuated
In figure, 1. valve body, 2. lower valve base, 3. flap, 4. orifice sleeve, 5. upper valve base, 6. selfsealings circle, 7. pressure ring, 8. pressing plate, 9. relief hole, 10. self-tightening seal ring, 11. bolts, 12. supports, 13. piston rods, 14.0 type circles, 15. spring energy-storage circles, 16. piston cylinders, 17. spring washers, 18. 4 cyclizations, 19. hexagon head bolts, 20. position limit switches, 21. valve gaps, 22. stroke indicator boards, 23. flap glands, 24. high pressure pistons
Embodiment
In the embodiment shown in fig. 1, high pressure piston 24 is integral type structure with piston rod 13, and piston rod 13 is connected by flap gland 23 with flap 3.Flap 3 is welded to connect with orifice sleeve 4, when injecting high-pressure feed water in high-pressure heater, rises at medium power effect lower Disc 3, and valve main road is opened, and bypass is closed, and feedwater enters high-pressure heater by main road.Lower valve base 2 is welded on valve body 1, and four cyclizations 18 are embedded in valve body 1 groove, and upper valve base 5 is connected with valve body 1 by four cyclizations 18, pressure ring 7, pressing plate 8, selfsealings circle 6, hexagon head bolt 19, utilizes spring washer 17 locking, and pressure more high sealing is better; In the time that high-pressure heater breaks down, piston cylinder 16 cavity of resorption media are discharged fast through relief hole 9, piston cylinder 16 epicoele media are tried hard to recommend dynamic high-pressure piston 24 and are moved down rapidly, drive flap 3 actions that bypass unlatching, main road are closed, high-pressure heater parallel off, feedwater is walked around high-pressure heater and is entered boiler through bypass.
Between relief hole 9 place's valve bodies 1 of valve and valve gap 21, adopt spring energy-storage seal ring 15 and 0 shape to enclose 14 double sealing structures, guarantee the smooth pressure release of feeding water of piston cylinder 16 cavity of resorptions.
Between valve body 1 and valve gap 21, adopt pressure self-tightening sealing configuration, compress self-tightening seal ring 10 by bolt 11, support 12.
Two position limit switches 20 are installed on valve rack, and stroke indicator board 22 moves with piston rod 13 and flap 3, and the position signal that can accurately feed back valve opening, close is convenient to DCS system and is automatically controlled.

Claims (7)

1. the high three-way valve that adds of internal high-voltage piston actuated, is characterized in that: it comprises valve body (1), lower valve base (2), flap (3), orifice sleeve (4), upper valve base (5), selfsealings circle (6), pressure ring (7), pressing plate (8), piston rod (13), four cyclizations (18), position limit switch (20), high pressure piston (24) etc.Valve body and lower valve base are welded to connect, four cyclizations are embedded in valve body recess, upper valve base is connected with valve body by four cyclizations, pressure ring, pressing plate, selfsealings circle, hexagon head bolt, high pressure piston and piston rod are integral type structure, piston rod is connected by flap gland with flap, on flap, be welded with orifice sleeve, support is provided with position limit switch.
2. the high three-way valve that adds of internal high-voltage piston actuated according to claim 1, is characterized in that: valve body adopts pressure self-tightening sealing configuration to be connected with upper valve base.
3. the high three-way valve that adds of internal high-voltage piston actuated according to claim 1, is characterized in that: valve by main road to the switching of bypass by internal high-voltage piston actuated.
4. the high three-way valve that adds of internal high-voltage piston actuated according to claim 1, is characterized in that: valve body and valve cover chamber adopt the self-fastening sealing structure without pressure ring, four cyclizations, is compressed and is connected by bolt.
5. the high three-way valve that adds of internal high-voltage piston actuated according to claim 1, is characterized in that: relief hole place valve body and valve cover chamber adopt spring energy-storage circle and 0 shape circle two seals structure.
6. the high three-way valve that adds of internal high-voltage piston actuated according to claim 1, is characterized in that: described valve, with orifice sleeve, plays expenditure and pressure effect.
7. the high three-way valve that adds of internal high-voltage piston actuated according to claim 1, is characterized in that: described valve rack is provided with position limit switch, touches position limit switch energy feedback valve door position signal by stroke indicator board.
CN201410044551.8A 2014-01-25 2014-01-25 High-pressure heater three-way valve driven by inner high-pressure piston Pending CN103821965A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410044551.8A CN103821965A (en) 2014-01-25 2014-01-25 High-pressure heater three-way valve driven by inner high-pressure piston

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410044551.8A CN103821965A (en) 2014-01-25 2014-01-25 High-pressure heater three-way valve driven by inner high-pressure piston

Publications (1)

Publication Number Publication Date
CN103821965A true CN103821965A (en) 2014-05-28

Family

ID=50757172

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410044551.8A Pending CN103821965A (en) 2014-01-25 2014-01-25 High-pressure heater three-way valve driven by inner high-pressure piston

Country Status (1)

Country Link
CN (1) CN103821965A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108167461A (en) * 2018-01-31 2018-06-15 黑龙江北方阀业有限责任公司 It is a kind of to idle discharge steam valve
CN111043352A (en) * 2019-12-17 2020-04-21 恩宜瑞(江苏)环境发展有限公司 Novel poppet valve and application thereof in RTO system
WO2021134349A1 (en) * 2019-12-30 2021-07-08 深圳迈瑞生物医疗电子股份有限公司 Three-way valve and anaesthesia machine
CN113431923A (en) * 2021-08-26 2021-09-24 徐州德胜石油机械有限公司 Chemical valve with flow dividing and guiding functions

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4621656A (en) * 1981-04-10 1986-11-11 Ichimarugiken Co., Ltd. Piston operated valve
CN201363456Y (en) * 2009-01-21 2009-12-16 河南开封高压阀门有限公司 T-shaped tee valve for inlet of high pressure heater
CN202203443U (en) * 2011-09-15 2012-04-25 南通市电站阀门有限公司 High-adding-opening three-way valve with guide throttle device
CN102996852A (en) * 2012-08-17 2013-03-27 大连大高阀门股份有限公司 Hydraulic self-operated three-way valve
CN202868004U (en) * 2012-11-15 2013-04-10 河南开封高压阀门有限公司 Novel built-in hydraulic cylinder for three-way valve of high-pressure heater and water supply and hydraulic drive
CN203162223U (en) * 2013-04-17 2013-08-28 成都市龙成机电设备有限公司 Self-operated hydraulic three-way valve of isolation system of high pressure heater
CN203770716U (en) * 2014-01-25 2014-08-13 哈电集团哈尔滨电站阀门有限公司 High-pressure heater three-way valve driven by internal high-pressure piston

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4621656A (en) * 1981-04-10 1986-11-11 Ichimarugiken Co., Ltd. Piston operated valve
CN201363456Y (en) * 2009-01-21 2009-12-16 河南开封高压阀门有限公司 T-shaped tee valve for inlet of high pressure heater
CN202203443U (en) * 2011-09-15 2012-04-25 南通市电站阀门有限公司 High-adding-opening three-way valve with guide throttle device
CN102996852A (en) * 2012-08-17 2013-03-27 大连大高阀门股份有限公司 Hydraulic self-operated three-way valve
CN202868004U (en) * 2012-11-15 2013-04-10 河南开封高压阀门有限公司 Novel built-in hydraulic cylinder for three-way valve of high-pressure heater and water supply and hydraulic drive
CN203162223U (en) * 2013-04-17 2013-08-28 成都市龙成机电设备有限公司 Self-operated hydraulic three-way valve of isolation system of high pressure heater
CN203770716U (en) * 2014-01-25 2014-08-13 哈电集团哈尔滨电站阀门有限公司 High-pressure heater three-way valve driven by internal high-pressure piston

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108167461A (en) * 2018-01-31 2018-06-15 黑龙江北方阀业有限责任公司 It is a kind of to idle discharge steam valve
CN111043352A (en) * 2019-12-17 2020-04-21 恩宜瑞(江苏)环境发展有限公司 Novel poppet valve and application thereof in RTO system
CN111043352B (en) * 2019-12-17 2021-09-24 恩宜瑞(江苏)环境发展有限公司 Poppet valve and application thereof in RTO system
WO2021134349A1 (en) * 2019-12-30 2021-07-08 深圳迈瑞生物医疗电子股份有限公司 Three-way valve and anaesthesia machine
EP4086489A4 (en) * 2019-12-30 2022-12-21 Shenzhen Mindray Bio-Medical Electronics Co., Ltd Three-way valve and anaesthesia machine
CN113431923A (en) * 2021-08-26 2021-09-24 徐州德胜石油机械有限公司 Chemical valve with flow dividing and guiding functions
CN113431923B (en) * 2021-08-26 2021-11-02 徐州德胜石油机械有限公司 Chemical valve with flow dividing and guiding functions

Similar Documents

Publication Publication Date Title
CN103821965A (en) High-pressure heater three-way valve driven by inner high-pressure piston
CN101339111A (en) Multi-station ball-valve bursting test machine
CN102996852A (en) Hydraulic self-operated three-way valve
CN203604684U (en) Main water supply forged steel gate valve with ultra-large caliber
CN103573732A (en) Ultrahigh-pressure large-flow-rate supercharged hydraulically controlled stop valve and application thereof
CN206054892U (en) A kind of safety Direct Travel executor
CN203770716U (en) High-pressure heater three-way valve driven by internal high-pressure piston
CN203477326U (en) Diaphragm mud valve
CN108644396B (en) Protection system of high temperature and high pressure valve
CN103899775A (en) Hydraulic self-locking type kingston valve
CN202646869U (en) High voltage (HV) fast switch valve
CN205211426U (en) Nuclear power station gas -liquid booster pump recycling safety injection system
CN201925513U (en) Top mounted ball valve of inner-propped compound seal forged steel
CN208024377U (en) A kind of column boost-up circuit of hydraulic support
CN103836218B (en) A kind of coking tower valve
CN204717031U (en) Novel parallel double-flashboard electric gate valve
CN202955258U (en) Valve for coke tower
CN204389111U (en) A kind of multiple through way valve experimental provision
CN204420141U (en) A kind of bidirectional metal sealing hydraulic butterfly valve
CN102606750A (en) Nuclear class I electric cobalt-free modularized stop valve
CN103423505A (en) HV fast changeover valve
CN203188219U (en) High-pressure grouting cooling water accessible rotary type orifice sealer
CN208204327U (en) A kind of feedwater piping rupture quick-restoring device
CN203189841U (en) Fluid automatic stopping device
CN202901300U (en) Anti-scouring stop valve

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information

Address after: Hanan Hanan Industrial Park core area three road 150060 Heilongjiang city of Harbin province No. 6

Applicant after: Harbin Power Plant Valve Co., Ltd.

Address before: 150046 Xiangfang City, Harbin Province, the steel pad street, No., No. 1

Applicant before: Harbin Power Plant Valve Co., Ltd.

COR Change of bibliographic data
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20140528