CN107387785A - A kind of micro-flow regulating valve - Google Patents

A kind of micro-flow regulating valve Download PDF

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Publication number
CN107387785A
CN107387785A CN201710836826.5A CN201710836826A CN107387785A CN 107387785 A CN107387785 A CN 107387785A CN 201710836826 A CN201710836826 A CN 201710836826A CN 107387785 A CN107387785 A CN 107387785A
Authority
CN
China
Prior art keywords
valve
cage
bonnet
micro
valve seat
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
CN201710836826.5A
Other languages
Chinese (zh)
Inventor
林童
林峰
王平红
舒婷洁
李红伟
谢钦辉
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.)
ZHEJIANG BEIER CONTROL VALVE CO Ltd
Original Assignee
ZHEJIANG BEIER CONTROL 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 ZHEJIANG BEIER CONTROL VALVE CO Ltd filed Critical ZHEJIANG BEIER CONTROL VALVE CO Ltd
Priority to CN201710836826.5A priority Critical patent/CN107387785A/en
Publication of CN107387785A publication Critical patent/CN107387785A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32Details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32Details
    • F16K1/34Cutting-off parts, e.g. valve members, seats
    • F16K1/42Valve seats
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32Details
    • F16K1/34Cutting-off parts, e.g. valve members, seats
    • F16K1/46Attachment of sealing rings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32Details
    • F16K1/48Attaching valve members to screw-spindles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K41/00Spindle sealings
    • F16K41/02Spindle sealings with stuffing-box ; Sealing rings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)

Abstract

The invention discloses a kind of micro-flow regulating valve, including valve body, valve seat, valve rod, valve element and bonnet, valve body middle chamber is provided with valve body, valve body middle chamber lower end is provided with a valve seat pad, valve seat is installed on valve seat pad, valve seat upper end is provided with a tiny flow quantity and is oriented to valve cage, bonnet lower end is oriented to valve cage with tiny flow quantity and is connected, a valve rod mounting hole is vertically provided with the middle part of valve body, valve rod is located in valve rod mounting hole, valve rod lower end has been wholely set valve element, and the valve element lower end is detachably provided with seal spool ring;Tiny flow quantity is oriented on valve cage and is provided with elongated scarfing, is moved up and down by valve rod band movable valve plug, and valve element drives seal spool ring and elongated scarfing relative displacement, so as to change the circulation area of elongated scarfing, realizes and changes flow.Above-mentioned technical proposal, reasonable in design, simple in construction, valve element is hardly damaged, good seal performance, esy to use, safe and reliable and service life are grown.

Description

A kind of micro-flow regulating valve
Technical field
The present invention relates to valve technology field, and in particular to a kind of micro-flow regulating valve.
Background technology
Most of control valve for small flows is all using changing the flow of valve element shape de-regulation valve, when running into pressure medium When high-temperature height and flow very little, it is necessary to valve element is made small and can be only achieved required tiny flow quantity, valve element is made Its small intensity just substantially reduces, and is easy to be broken in the high occasion of the big flow velocity of pressure difference, is so easy to bring serious consequence. Patent No. 201220622597.X, patent name " small flow high pressure regulating valve " as filed in 22 days November in 2012 of applicant Patent of invention, there is above-mentioned technical problem and cannot effectively solve.
The content of the invention
In view of the deficienciess of the prior art, it is an object of the invention to provide it is a kind of it is reasonable in design, simple in construction, Valve element is hardly damaged, good seal performance, the micro-flow regulating valve of esy to use, safe and reliable and service life length.
To achieve the above object, the invention provides following technical scheme:A kind of micro-flow regulating valve, including valve body, Valve seat, valve rod, valve element and bonnet, valve body middle chamber are provided with the valve body, the valve body middle chamber lower end is provided with a valve seat Pad, installs valve seat on the valve seat pad, and the valve seat upper end is provided with a tiny flow quantity and is oriented to valve cage, under the bonnet End is oriented to valve cage with tiny flow quantity and is connected, and compresses the tiny flow quantity guiding valve cage by locking bonnet, the bonnet middle part is perpendicular To a valve rod mounting hole is provided with, the valve rod is located in valve rod mounting hole, and valve rod lower end is wholely set with valve element, described Valve element lower end is detachably provided with seal spool ring;The tiny flow quantity is oriented on valve cage and is provided with elongated scarfing, passes through valve rod Band movable valve plug moves up and down, and valve element drives seal spool ring and elongated scarfing relative displacement, so as to change the circulation of elongated scarfing Area, realize and change flow.
By using above-mentioned technical proposal, valve rod is wholely set with valve element, is moved up and down by valve rod band movable valve plug, Seal spool ring and elongated scarfing relative displacement are driven, so as to change the circulation area of elongated scarfing, so as to change valve flow Size;Reasonable in design, simple in construction, valve element is hardly damaged, good seal performance, esy to use, safe and reliable and use the longevity Life length.
The present invention is further arranged to:A positioning boss, the convex have been wholely set on the valve element lower surface Platform lower end has been wholely set a threaded joints, and the threaded joints lower end has been wholely set a valve element locating rod, institute State seal spool ring to be arranged on positioning boss, a location nut is threaded with the threaded joints, passes through positioning Nut check seal spool ring.By this setting, it is more reasonable that valve core structure is set, and seal spool ring is easy to connect, and fixation can Lean on, assembly and disassembly are easy, easy to maintenance.
The present invention is further arranged to:A valve element positioning jack, the valve are vertically provided with the middle part of the valve seat Core locating rod insertion valve element positioning jack is set.By this setting, structure setting is more reasonable, and valve element positioning is reliable, and work is steady It is fixed, rock small, be not likely to produce noise.
The present invention is further arranged to:The tiny flow quantity is oriented in the middle part of valve cage and is vertically provided with a valve element activity Hole, the valve element movable span lower port are provided with a valve seat locating notch.By this setting, tiny flow quantity is oriented to valve cage structure It is more reasonable to set, reliable with valve seat positioning.
The present invention is further arranged to:The upper end of the valve seat has been wholely set one and the valve seat locating notch The guiding valve cage positioning boss matched somebody with somebody, and tiny flow quantity is oriented between the lower surface of valve cage and the upper surface of valve seat and is provided with a valve Seat sealing ring.By this setting, it is more reasonable that valve seat construction is set, and tiny flow quantity, which is oriented between valve cage and valve seat, to be connected reliably, Good seal performance.
The present invention is further arranged to:Multiple bolts are equipped with the bonnet, bonnet is locked by bolt and valve body It is fixed.By this setting, bonnet is easy to connect with valve body, fixed reliable.
The present invention is further arranged to:Filler assembly and gland are provided with above the valve rod mounting hole, it is described Gland is connected with bonnet threaded upper ends, and gland compresses filler assembly.By this setting, filler assembly is set tightly to squeeze It is pressed on valve rod, good seal performance, is not easy to leak.
The present invention is further arranged to:The width of the elongated scarfing is 0.2mm.By this setting, elongated scarfing is wide It is reasonable that degree is set, and Flow-rate adjustment is convenient.
It is an advantage of the invention that:Compared with prior art, structure setting of the present invention is more reasonable, and valve rod is one with valve element Set, moved up and down by valve rod band movable valve plug, drive seal spool ring and elongated scarfing relative displacement, it is elongated so as to change The circulation area of scarfing, so as to change valve flow size;Reasonable in design, simple in construction, valve element is hardly damaged, sealing Can good, esy to use, safe and reliable and service life length.
With reference to Figure of description and specific embodiment, the invention will be further described.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is the enlarged diagram in I portions in Fig. 1;
Fig. 3 is the schematic cross-sectional view that tiny flow quantity of the embodiment of the present invention is oriented to valve cage.
Embodiment
Referring to Fig. 1, Fig. 2 and Fig. 3, a kind of micro-flow regulating valve disclosed by the invention, including valve body 1, valve seat 2, valve rod 3rd, valve element 4 and bonnet 5, valve body middle chamber 11 are provided with the valve body 1, the lower end of valve body middle chamber 11 is provided with a valve seat pad Piece 6, valve seat 2 is installed on the valve seat pad 6, and the upper end of valve seat 2 is provided with a tiny flow quantity and is oriented to valve cage 7, the valve The lower end of lid 5 is oriented to valve cage 7 with tiny flow quantity and is connected, and the tiny flow quantity guiding valve cage 7, the valve are compressed by locking bonnet 5 The middle part of lid 5 is vertically provided with a valve rod mounting hole 12, and the valve rod 3 is located in valve rod mounting hole 12, the lower end of valve rod 3 and valve Core 4 is wholely set, and the lower end of valve element 4 is detachably provided with seal spool ring 8;The tiny flow quantity is oriented on valve cage 7 and set There is elongated scarfing 71, moved up and down by valve rod 3 with movable valve plug 4, valve element 4 drives seal spool ring 8 relative with elongated scarfing 71 Displacement, so as to change the circulation area of elongated scarfing 71, realize and change flow.
As preferable, the winding of valve seat pad 6 valve outer surface setting described in the present embodiment;Bonnet 5 pushes down tiny flow quantity Valve cage 7 is oriented to, and tiny flow quantity is oriented to valve cage 7 and compresses valve seat pad 6, different circulating faces are formed in the up and down motion of valve rod 3 Product, so as to be able to adjust the size of flow.
To make structure setting of the present invention more reasonable, as preferable, integrally set on the lower surface of valve element 4 described in the present embodiment A positioning boss 41 is equipped with, the lower end of positioning boss 41 has been wholely set a threaded joints 42, the threaded connection The lower end of portion 42 has been wholely set a valve element locating rod 43, and the seal spool ring 8 is arranged on positioning boss 41, the screw thread A location nut 9 is threaded with connecting portion 42, valve element sealing ring 8 is locked by location nut 9.
The middle part of the valve seat 2 is vertically provided with a valve element positioning jack 21, and the valve element locating rod 43 inserts valve element Positioning jack 21 is set.As preferable, valve seat 2 is threadedly coupled with valve element locating rod 43.
The middle part that the tiny flow quantity is oriented to valve cage 7 is vertically provided with a valve element movable span 72, the valve element movable span 72 lower ports are provided with a valve seat locating notch.The valve element 4 is located in valve element movable span 72.
The upper end of the valve seat 2 is wholely set a guiding valve cage convex matched with the valve seat locating notch Platform, and tiny flow quantity is oriented between the lower surface of valve cage 7 and the upper surface of valve seat 2 and is provided with a valve base sealing ring 10.It is described The upper end of valve body 1 and the junction of bonnet 5 are provided with a valve bonnet seal circle, and the valve bonnet seal circle is O-ring seal.
Multiple bolts 13 are equipped with the bonnet 5, bonnet 5 is locked by bolt 13 and valve body 1.
The top of valve rod mounting hole 12 is provided with filler assembly 14 and gland 15, the gland 15 and bonnet 5 threaded upper ends connect, and gland 15 compresses filler assembly 14.
It is to be oriented to be outputed with line cutting technology on valve cage 7 in tiny flow quantity to flow by client that the tiny flow quantity, which is oriented to valve cage 7, Desired extremely small scarfing is measured, typically in slender type, the longitudinal section of scarfing is rectangle, and main feature is embodied on thin word, The broadband that tiny flow quantity is oriented to the elongated scarfing 71 of valve cage 7 is 0.2mm, it appears that just thicker than hairline.Pass through the band of valve rod 3 Movable valve plug 4 moves up and down, and seal spool ring 8 and the elongated relative displacement of scarfing 71 is driven, so as to change the circulation of elongated scarfing 71 Area, realize and change flow.As preferable, seal spool ring 8 is PTFE seal ring, i.e. teflon seal ring.
The valve seat 2 is compressed with valve body middle chamber 11 by valve seat pad 6 ensures that valve seat 2 seals with valve body 1.The valve seat 2, Tiny flow quantity, which is oriented to valve cage 7 and compressed by valve base sealing ring 10 therebetween, ensures sealing, No leakage, so as to ensure tiny flow quantity It is oriented to the accuracy that valve cage 7 adjusts flow.As preferable, the valve base sealing ring 10 is O-ring sealing ring.
The bonnet 5 compresses filler assembly 14 by gland 15, filler assembly 14 is tightly squeezed on valve rod 3, It ensure that valve seal performance is good, No leakage.
During practical application, valve rod is wholely set with valve element, is moved up and down by valve rod band movable valve plug, band movable valve plug is close Seal ring and elongated scarfing relative displacement, so as to change the circulation area of elongated scarfing, so as to change valve flow size;Structure is set Count that reasonable, simple in construction, valve element is hardly damaged, good seal performance, esy to use, safe and reliable and service life are grown.
Above-described embodiment is served only for that the present invention is further described, it is impossible to be interpreted as to the specific descriptions of the present invention Limiting the scope of the present invention, it is non-that the technician of this area according to the content of foregoing invention makes some to the present invention The modifications and adaptations of essence are each fallen within protection scope of the present invention.

Claims (8)

1. a kind of micro-flow regulating valve, including valve body (1), valve seat (2), valve rod (3), valve element (4) and bonnet (5), the valve Valve body middle chamber (11) is provided with body (1), it is characterised in that:Valve body middle chamber (11) lower end is provided with a valve seat pad (6) valve seat (2), is installed, valve seat (2) upper end is provided with a tiny flow quantity and is oriented to valve cage on the valve seat pad (6) (7), bonnet (5) lower end is oriented to valve cage (7) with tiny flow quantity and is connected, and the tiny flow quantity is compressed by locking bonnet (5) Valve cage (7) is oriented to, is vertically provided with a valve rod mounting hole (12) in the middle part of the bonnet (5), the valve rod (3) is located in valve rod In mounting hole (12), valve rod (3) lower end is wholely set with valve element (4), and valve element (4) lower end is detachably provided with seal spool Ring (8);The tiny flow quantity is oriented on valve cage (7) and is provided with elongated scarfing (71), by valve rod (3) band movable valve plug (4) up and down Motion, valve element (4) drives seal spool ring (8) and elongated scarfing (71) relative displacement, so as to change the stream of elongated scarfing (71) Logical area, realizes and changes flow.
A kind of 2. micro-flow regulating valve according to claim 1, it is characterised in that:One on valve element (4) lower surface Body is provided with a positioning boss (41), and positioning boss (41) lower end has been wholely set a threaded joints (42), institute State threaded joints (42) lower end and be wholely set a valve element locating rod (43), the seal spool ring (8) is arranged on positioning On boss (41), a location nut (9) is threaded with the threaded joints (42), is locked by location nut (9) Seal spool ring (8).
A kind of 3. micro-flow regulating valve according to claim 2, it is characterised in that:The middle part of the valve seat (2) is vertical A valve element positioning jack (21) is provided with, valve element locating rod (43) the insertion valve element positioning jack (21) is set.
A kind of 4. micro-flow regulating valve according to claim 1 or 3, it is characterised in that:The tiny flow quantity guide valve A valve element movable span (72) is vertically provided with the middle part of cage (7), valve element movable span (72) lower port is provided with a valve Seat locating notch.
A kind of 5. micro-flow regulating valve according to claim 4, it is characterised in that:The upper end one of the valve seat (2) A guiding valve cage positioning boss matched with the valve seat locating notch is provided with, and tiny flow quantity is oriented under valve cage (7) A valve base sealing ring (10) is provided between end face and the upper surface of valve seat (2).
A kind of 6. micro-flow regulating valve according to claim 5, it is characterised in that:It is equipped with the bonnet (5) more Individual bolt (13), bonnet (5) are locked by bolt (13) and valve body (1).
A kind of 7. micro-flow regulating valve according to claim 6, it is characterised in that:Above the valve rod mounting hole (12) Filler assembly (14) and gland (15) are provided with, the gland (15) is connected with bonnet (5) threaded upper ends, and filler Gland (15) compresses filler assembly (14).
A kind of 8. micro-flow regulating valve according to claim 1, it is characterised in that:The width of the elongated scarfing (71) For 0.2mm.
CN201710836826.5A 2017-09-17 2017-09-17 A kind of micro-flow regulating valve Pending CN107387785A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710836826.5A CN107387785A (en) 2017-09-17 2017-09-17 A kind of micro-flow regulating valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710836826.5A CN107387785A (en) 2017-09-17 2017-09-17 A kind of micro-flow regulating valve

Publications (1)

Publication Number Publication Date
CN107387785A true CN107387785A (en) 2017-11-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710836826.5A Pending CN107387785A (en) 2017-09-17 2017-09-17 A kind of micro-flow regulating valve

Country Status (1)

Country Link
CN (1) CN107387785A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117739131A (en) * 2024-02-20 2024-03-22 中国石油大学(华东) Pump valve integrated device capable of controlling pipeline flow

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102422065A (en) * 2009-04-28 2012-04-18 费希尔控制国际公司 Bidirectional seal assembly for use with valves
CN202867872U (en) * 2012-11-22 2013-04-10 浙江贝尔控制阀门有限公司 Small-flow high-pressure regulating valve
CN103527799A (en) * 2013-08-05 2014-01-22 南通市电站阀门有限公司 High-pressure adjusting valve
CN103867735A (en) * 2014-03-28 2014-06-18 株洲南方阀门股份有限公司 Main water supply bypass regulating valve
CN203940014U (en) * 2014-05-15 2014-11-12 哈尔滨滨大阀门制造有限公司 Novel sliding black box
CN204961834U (en) * 2015-07-07 2016-01-13 杨镇纲 Little flow control valve door of multi stage decompression
CN205136798U (en) * 2015-11-03 2016-04-06 天津精通控制仪表技术有限公司 Multi stage decompression maze cage type adjusting valve
CN206017750U (en) * 2016-09-21 2017-03-15 山东菲特自控阀门制造有限公司 Metal C-shaped ring balanced type high-temp. high-pressure differential
CN207195691U (en) * 2017-09-17 2018-04-06 浙江贝尔控制阀门有限公司 A kind of micro-flow regulating valve

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102422065A (en) * 2009-04-28 2012-04-18 费希尔控制国际公司 Bidirectional seal assembly for use with valves
CN202867872U (en) * 2012-11-22 2013-04-10 浙江贝尔控制阀门有限公司 Small-flow high-pressure regulating valve
CN103527799A (en) * 2013-08-05 2014-01-22 南通市电站阀门有限公司 High-pressure adjusting valve
CN103867735A (en) * 2014-03-28 2014-06-18 株洲南方阀门股份有限公司 Main water supply bypass regulating valve
CN203940014U (en) * 2014-05-15 2014-11-12 哈尔滨滨大阀门制造有限公司 Novel sliding black box
CN204961834U (en) * 2015-07-07 2016-01-13 杨镇纲 Little flow control valve door of multi stage decompression
CN205136798U (en) * 2015-11-03 2016-04-06 天津精通控制仪表技术有限公司 Multi stage decompression maze cage type adjusting valve
CN206017750U (en) * 2016-09-21 2017-03-15 山东菲特自控阀门制造有限公司 Metal C-shaped ring balanced type high-temp. high-pressure differential
CN207195691U (en) * 2017-09-17 2018-04-06 浙江贝尔控制阀门有限公司 A kind of micro-flow regulating valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117739131A (en) * 2024-02-20 2024-03-22 中国石油大学(华东) Pump valve integrated device capable of controlling pipeline flow
CN117739131B (en) * 2024-02-20 2024-05-07 中国石油大学(华东) Pump valve integrated device capable of controlling pipeline flow

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