CN109139943B - Regulating valve with displacement fine-tuning device - Google Patents

Regulating valve with displacement fine-tuning device Download PDF

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Publication number
CN109139943B
CN109139943B CN201811303137.9A CN201811303137A CN109139943B CN 109139943 B CN109139943 B CN 109139943B CN 201811303137 A CN201811303137 A CN 201811303137A CN 109139943 B CN109139943 B CN 109139943B
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China
Prior art keywords
valve
valve rod
clack
rod
support
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CN201811303137.9A
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Chinese (zh)
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CN109139943A (en
Inventor
徐国华
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Jiangsu Sages Energy Equipment Co.,Ltd.
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Yongjia Qida Intellectual Property Consulting Co ltd
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Priority to CN201811303137.9A priority Critical patent/CN109139943B/en
Publication of CN109139943A publication Critical patent/CN109139943A/en
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    • 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
    • F16K1/44Details of seats or valve members of double-seat valves
    • 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
    • F16K41/00Spindle sealings
    • F16K41/02Spindle sealings with stuffing-box ; Sealing rings

Abstract

The invention relates to a regulating valve with a displacement fine-tuning device, which is characterized in that: the valve further comprises an inner valve rod which is vertically arranged, the inner valve rod is installed inside the upper valve rod, the lower end of the inner valve rod downwards extends into the upper valve clack, the lower portion of the inner valve rod is provided with a limiting block which limits the inner valve rod to move relative to the upper valve clack, the limiting block is arranged inside the upper valve clack, the lower end of the inner valve rod is further provided with an adjusting external thread, a lifting block and an anti-rotation groove are further arranged inside the upper valve clack, the upper portion of the lifting block is provided with an adjusting internal thread matched with the adjusting external thread, the outer portion of the lifting block is provided with an anti-rotation shin which extends into the anti-rotation groove, the lower valve rod upwards extends into the upper valve clack and is fixedly connected with the lifting block, the upper portion of the upper valve rod is further provided with a gear box, the gear box is internally provided with a worm wheel, the gear.

Description

Regulating valve with displacement fine-tuning device
Technical Field
The invention relates to a regulating valve, in particular to a regulating valve with a displacement fine-tuning device.
Background
The double seat formula governing valve mainly includes: the valve body is internally provided with an inlet channel and an outlet channel, the inlet channel is transversely arranged, the outlet channel is arranged in a transverse Y-shaped structure, a cavity wall with a transverse U-shaped structure is arranged between the inlet channel and the outlet channel, the upper valve seat is arranged at the upper part of the cavity wall, the lower valve seat is arranged at the lower part of the cavity wall, the upper ends of the upper valve seat and the lower valve seat are respectively provided with an upper valve seat sealing surface and a lower valve seat sealing surface, the upper valve clack and the lower valve clack are fixed at the lower part of the valve rod in a series connection manner, a lower valve rod is arranged between the upper valve clack and the lower valve clack, the upper valve clack is arranged at the upper part of the outlet channel, the lower valve clack is arranged at the, can control the distance between the upper and lower valve clack sealing surface and the upper and lower valve seat sealing surface respectively to play the effect of governing valve outlet pressure, flow, its shortcoming lies in: because the influence in aspects such as machining error, assembly, when moving the upper valve rod, the distance between the sealed face of upper valve clack and the sealed face of upper valve seat can't be unanimous with the distance between the sealed face of lower valve clack and the sealed face of lower valve seat, when needs close this valve, can't reach full seal state, lets out leakage quantity big, goes up the fixed setting between valve clack and the lower valve clack simultaneously, has the technical defect that processing is difficult, with high costs.
Disclosure of Invention
Aiming at the technical defects in the prior art, the invention provides the regulating valve with the displacement fine-tuning device, which has good use sealing performance, stable regulation and good vibration resistance.
The invention is realized by the following technical scheme:
this take displacement micromatic setting governing valve includes: the valve comprises a valve body, an upper valve seat, a lower valve seat, an upper valve clack, a lower valve clack, a valve cover, an upper valve rod, a support and a driving device, wherein an inlet channel and an outlet channel are arranged in the valve body, the inlet channel is transversely arranged, the outlet channel is arranged in a transverse Y-shaped structure, a cavity wall in a transverse U-shaped structure is arranged between the inlet channel and the outlet channel, the upper valve seat is arranged at the upper part of the cavity wall, the lower valve seat is arranged at the lower part of the cavity wall, the upper end of the upper valve seat and the upper end of the lower valve seat are respectively provided with an upper valve seat sealing surface and a lower valve seat sealing surface, the upper valve clack and the lower valve clack are arranged below the upper valve rod in a series connection manner, the lower valve rod is arranged between the upper valve clack and the lower valve clack, the lower end of the lower valve rod is fixedly connected with the lower valve clack, gland compresses tightly the filler downwards, and support lower extreme fixed mounting is on valve gap upper portion, and drive arrangement installs on support upper portion, goes up the valve stem upper end upwards pierce through valve gap, recess and support and stretch into drive arrangement in, go up valve stem lower extreme and last valve lamella fixed connection, its characterized in that: this valve still includes the interior valve rod of vertical setting, this interior valve rod is installed inside last valve rod, interior valve rod lower extreme stretches into inside the valve clack downwards, interior valve rod lower part is equipped with the stopper of restriction this interior valve rod for last valve clack removal, inside this stopper was arranged in the valve clack, interior valve rod lower extreme still is equipped with the regulation external screw thread, go up inside hoisting block and the anti-rotation groove of still being equipped with of valve clack, hoisting block upper portion is equipped with and adjusts the internal thread of screw thread matched with regulation, the outside anti-rotation shin that stretches into the anti-rotation groove that is equipped with of hoisting block, lower valve rod upwards stretch into in the valve clack and with hoisting block fixed connection, it still is equipped with the gear box to go up valve rod upper portion, be equipped with the worm wheel in the gear box, this worm wheel forms fixed connection with interior.
Furthermore, the fine adjustment device comprises a left sleeve, an adjusting rod, a right sleeve, a limiting device and a hand wheel, the left sleeve is hinged to one side of the support, a locking groove is formed in the other side of the support, the right sleeve penetrates through the locking groove and extends out of the support, one end of the adjusting rod penetrates through the inside of the right sleeve and extends into the inside of the left sleeve, a worm which can be matched with a worm wheel to form worm gear transmission is arranged in the middle of the adjusting rod, the hand wheel is arranged at the other end of the adjusting rod, the limiting device is of a strip-shaped plate structure and is installed on the outer side of the support, the upper end of the limiting device is hinged to the support, a bolt is arranged on the lower portion of the limiting device and can be screwed into the support, and therefore the.
Furthermore, a rubber sealing ring is arranged between the outer circle of the inner valve rod and the upper valve rod.
Furthermore, a guide sleeve is arranged between the valve body and the valve cover.
Furthermore, the driving device is a pneumatic device, a hydraulic device or an electric device.
The invention has the advantages that: the arrangement of the inner valve rod and the fine adjustment device ensures that the distance between the upper valve clack sealing surface and the upper valve seat sealing surface is consistent with the distance between the lower valve clack sealing surface and the lower valve seat sealing surface when the valve is opened and closed, and has the advantage of good sealing property; meanwhile, the processing is convenient and the cost is low; the guide sleeve has the advantage of good vibration resistance.
Drawings
Fig. 1 is a schematic structural diagram of a regulating valve with a displacement fine-tuning device according to the present invention.
Fig. 2 is a schematic cross-sectional view of E-E of fig. 1.
Detailed Description
As can be seen from fig. 1 and 2, the regulating valve with the displacement fine-tuning device comprises: the valve comprises a valve body 1, an upper valve seat 7, a lower valve seat 3, an upper valve flap 6, a lower valve flap 4, a valve cover 11, an upper valve rod 12, a support 16 and a driving device 20, wherein an inlet channel 2 and an outlet channel 25 are arranged inside the valve body 1, the inlet channel 2 is transversely arranged, the outlet channel 25 is arranged in a transverse Y-shaped structure, a cavity wall with a transverse U-shaped structure is arranged between the inlet channel 2 and the outlet channel 25, the upper valve seat 7 is arranged on the upper part of the cavity wall, the lower valve seat 3 is arranged on the lower part of the cavity wall, the upper ends of the upper valve seat 7 and the lower valve seat 3 are respectively provided with an upper valve seat sealing surface and a lower valve seat sealing surface, the upper valve flap 6 and the lower valve flap 4 are installed below the upper valve rod 12 in a series connection manner, a lower valve rod 5 is arranged between the upper valve seat 6 and the lower valve seat 4, the lower end of the lower valve rod 5 is fixedly connected with the lower, The valve comprises a lower valve clack sealing surface, a valve cover 11 arranged at the upper end of a valve body 1, a groove arranged at the upper end of the valve cover 11, a packing 14 arranged in the groove, a gland 15 arranged at the upper part of the groove, the gland 15 pressing the packing 14 downwards, a support 16 fixedly arranged at the lower end of the support 11, a driving device 20 arranged at the upper part of the support 16, an upper end of an upper valve rod 12 penetrating the valve cover 11 upwards, the groove and the support 16 extending into the driving device 20, a lower end of the upper valve rod 12 fixedly connected with an upper valve clack 6, an inner valve rod 13 vertically arranged, the inner valve rod 13 arranged inside the upper valve rod 12, a lower end of the inner valve rod 13 extending downwards into the upper valve clack 6, a limiting block 9 limiting the movement of the inner valve rod 13 relative to the upper valve clack, the limiting block 9 arranged inside the upper valve clack 6, an adjusting external thread arranged at the lower end of the, the upper part of the lifting block 8 is provided with an adjusting internal thread matched with the adjusting external thread, the outer part of the lifting block 8 is provided with an anti-rotation shin extending into an anti-rotation groove, the lower valve rod 5 extends upwards into the upper valve clack 6 and is fixedly connected with the lifting block 8, the upper part of the upper valve rod 12 is also provided with a gear box 19, a worm wheel 18 is arranged in the gear box 19, the worm wheel 18 is fixedly connected with the upper part of the inner valve rod 13, the middle part of the bracket 16 is provided with a fine adjustment device capable of controlling the rotation of the worm wheel 18, the fine adjustment device comprises a left sleeve 17, an adjusting rod 21, a right sleeve 22, a limiting device 23 and a hand wheel 24, the left sleeve 17 is hinged with one side of the bracket 16, the other side of the bracket 16 is provided with a locking groove 26, the right sleeve 22 passes through the locking groove 26 and extends out of the bracket 16, one end of the adjusting rod 21 passes, the hand wheel 24 is arranged at the other end of the adjusting rod 21, the limiting device 23 is of a strip plate type structure and is installed on the outer side of the support 16, the upper end of the limiting device 23 is hinged with the support 16, a bolt is arranged on the lower portion of the limiting device 23 and can be screwed into the support 16 to fix the limiting device 23, the limiting device 23 can enable the locking groove 26 to be divided into a left locking groove and a right locking groove, a rubber sealing ring is arranged between the outer circle of the inner valve rod 13 and the outer valve rod 12, and the guide sleeve 10 is arranged between the valve body 1 and the valve cover 11.
Before the valve is used, a sealing test is firstly carried out, when the valve is in a closed state, a test medium is introduced from an inlet channel, whether leakage exists in an outlet channel is observed, and due to the influences of machining errors, assembly and the like, the distance between an upper valve clack sealing surface and an upper valve seat sealing surface cannot be consistent with the distance between a lower valve clack sealing surface and a lower valve seat sealing surface, so that a full-sealing state cannot be achieved.
When a seal is formed between the upper valve clack sealing surface and the upper valve seat sealing surface and a seal is not formed between the lower valve clack sealing surface and the lower valve seat sealing surface, the limiting device is loosened, the right sleeve is pulled to enter the left locking groove to enable the worm wheel to be connected with the worm, the limiting device is fixed again, the hand wheel is rotated clockwise to drive the adjusting rod and the worm to rotate, the worm and gear transmission mode is utilized to drive the inner valve rod to rotate, the lifting block, the lower valve rod and the lower valve clack are driven to move downwards under the matching of the adjusting external thread and the adjusting internal thread until the lower valve clack sealing surface and the lower valve seat sealing surface form a seal, then the limiting device is loosened, the inlet of the right sleeve is pulled to enter the right locking groove.
When the sealing surface of the lower valve clack and the sealing surface of the lower valve seat are sealed and the sealing surface of the upper valve clack and the sealing surface of the upper valve seat are not sealed, the limiting device is loosened, the right sleeve is pulled to enter the left locking groove to enable the worm wheel to be connected with the worm, the limiting device is fixed again, the hand wheel is rotated anticlockwise to drive the adjusting rod and the worm to rotate, the inner valve rod is driven to rotate in a worm and gear transmission mode, the upper valve clack is driven to move downwards under the matching of the adjusting external thread and the adjusting internal thread until the sealing surface of the upper valve clack and the sealing surface of the upper valve seat form sealing, then the limiting device is loosened, the inlet of the right sleeve is pulled to enter the right locking groove to enable.
At the moment, when the upper valve rod moves up and down in the use process of the valve, the distance between the upper valve clack sealing surface and the upper valve seat sealing surface is consistent with the distance between the lower valve clack sealing surface and the lower valve seat sealing surface.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. A take displacement micromatic setting governing valve includes: the valve comprises a valve body, an upper valve seat, a lower valve seat, an upper valve clack, a lower valve clack, a valve cover, an upper valve rod, a support and a driving device, wherein an inlet channel and an outlet channel are arranged in the valve body, the inlet channel is transversely arranged, the outlet channel is arranged in a transverse Y-shaped structure, a cavity wall in a transverse U-shaped structure is arranged between the inlet channel and the outlet channel, the upper valve seat is arranged at the upper part of the cavity wall, the lower valve seat is arranged at the lower part of the cavity wall, the upper end of the upper valve seat and the upper end of the lower valve seat are respectively provided with an upper valve seat sealing surface and a lower valve seat sealing surface, the upper valve clack and the lower valve clack are arranged below the upper valve rod in a series connection manner, the lower valve rod is arranged between the upper valve clack and the lower valve clack, the lower end of the lower valve rod is fixedly connected with the lower valve clack, gland compresses tightly the filler downwards, and support lower extreme fixed mounting is on valve gap upper portion, and drive arrangement installs on support upper portion, goes up the valve stem upper end upwards pierce through valve gap, recess and support and stretch into drive arrangement in, go up valve stem lower extreme and last valve lamella fixed connection, its characterized in that: this valve still includes the interior valve rod of vertical setting, this interior valve rod is installed inside last valve rod, interior valve rod lower extreme stretches into inside the valve clack downwards, interior valve rod lower part is equipped with the stopper of restriction this interior valve rod for last valve clack removal, inside this stopper was arranged in the valve clack, interior valve rod lower extreme still is equipped with the regulation external screw thread, go up inside hoisting block and the anti-rotation groove of still being equipped with of valve clack, hoisting block upper portion is equipped with and adjusts the internal thread of screw thread matched with regulation, the outside anti-rotation shin that stretches into the anti-rotation groove that is equipped with of hoisting block, lower valve rod upwards stretch into in the valve clack and with hoisting block fixed connection, it still is equipped with the gear box to go up valve rod upper portion, be equipped with the worm wheel in the gear box, this worm wheel forms fixed connection with interior.
2. The regulating valve with the displacement fine-tuning device according to claim 1, wherein: the fine adjustment device comprises a left sleeve, an adjusting rod, a right sleeve, a limiting device and a hand wheel, the left sleeve is hinged to one side of the support, the other side of the support is provided with a locking groove, the right sleeve penetrates through the locking groove and extends out of the support, one end of the adjusting rod penetrates through the inside of the right sleeve and extends into the inside of the left sleeve, the middle of the adjusting rod is provided with a worm which can be matched with a worm wheel to form worm gear transmission, the hand wheel is arranged at the other end of the adjusting rod, the limiting device is of a strip-shaped plate structure and is installed on the outer side of the support, the upper end of the limiting device is hinged to the support, the lower portion of the limiting device is provided with a bolt, the bolt can be screwed into the support.
3. The regulating valve with the displacement fine-tuning device according to claim 1, wherein: and a rubber sealing ring is arranged between the outer circle of the inner valve rod and the upper valve rod.
4. The regulating valve with the displacement fine-tuning device according to claim 1, wherein: and a guide sleeve is arranged between the valve body and the valve cover.
5. The regulating valve with the displacement fine-tuning device according to claim 1, wherein: the driving device is a pneumatic device, a hydraulic device or an electric device.
CN201811303137.9A 2018-11-02 2018-11-02 Regulating valve with displacement fine-tuning device Active CN109139943B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811303137.9A CN109139943B (en) 2018-11-02 2018-11-02 Regulating valve with displacement fine-tuning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811303137.9A CN109139943B (en) 2018-11-02 2018-11-02 Regulating valve with displacement fine-tuning device

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CN109139943A CN109139943A (en) 2019-01-04
CN109139943B true CN109139943B (en) 2020-05-15

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CN110200807B (en) * 2019-07-06 2022-02-01 中国人民解放军海军第九七一医院 Liquid leakage prevention medicine bottle

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JPS6458696A (en) * 1987-08-17 1989-03-06 Sanyo Electric Co Drink feeder
CN203036013U (en) * 2013-03-20 2013-07-03 北京承天倍达过滤技术有限责任公司 Duplex three-way ball valve
CN205047868U (en) * 2015-10-14 2016-02-24 泉州市中天石油化工机械制造有限公司 A two valves for middle and low voltage pipeline
CN206112201U (en) * 2016-09-29 2017-04-19 天津市华利达阀门有限公司 Telescopic gate valve of flange
CN207298002U (en) * 2017-08-10 2018-05-01 河北高昕暖通设备有限公司 A kind of connecting pipe external multifunctional balanced valve
CN207539406U (en) * 2017-09-13 2018-06-26 河南泉舜流体控制科技有限公司 Two-seater adjusts pressure reducing valve

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Effective date of registration: 20200417

Address after: 325105 No. 63, Codaocun Codao North Road, Oubei Street, Yongjia County, Wenzhou City, Zhejiang Province

Applicant after: Yongjia Qida Intellectual Property Consulting Co.,Ltd.

Address before: 325115 Gaoshan Village, Yantou Town, Yongjia County, Wenzhou City, Zhejiang Province

Applicant before: Xu Guohua

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Effective date of registration: 20240409

Address after: No. 1 Industrial New City, Funing Economic Development Zone, Yancheng City, Jiangsu Province, 224400

Patentee after: Jiangsu Sages Energy Equipment Co.,Ltd.

Country or region after: China

Address before: No.63, Maidao North Road, Maidao village, Oubei street, Yongjia County, Wenzhou City, Zhejiang Province

Patentee before: Yongjia Qida Intellectual Property Consulting Co.,Ltd.

Country or region before: China