CN102829195A - Universal compact type forged steel self-sealing stop valve - Google Patents
Universal compact type forged steel self-sealing stop valve Download PDFInfo
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- CN102829195A CN102829195A CN2012103349481A CN201210334948A CN102829195A CN 102829195 A CN102829195 A CN 102829195A CN 2012103349481 A CN2012103349481 A CN 2012103349481A CN 201210334948 A CN201210334948 A CN 201210334948A CN 102829195 A CN102829195 A CN 102829195A
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Abstract
The invention provides a universal compact type forged steel self-sealing stop valve, and is characterized by comprising a valve body, a valve cap, a valve clack, a valve stem, a hand wheel, a valve stem nut, a packing box, a clamping and ranking component, and the like, wherein the valve clack is connected with the lower end of the valve stem; the upper end of the valve stem extends out of the valve cap and is connected with the valve stem nut; the valve stem nut is put into a groove in the upper end of the valve cap; a support gland is connected and fixed with the groove in the valve cap through screw threads; the upper end part of the valve stem nut is connected with the hand wheel; the hand wheel is fixedly connected with the valve stem nut through a lock nut; the valve body is connected and fixed with the valve cap through screw threads; the packing box is arranged between the valve body and the valve cap and extends out of the valve cap to be connected and fixed by the lock nut; packing at a packing case is connected and fixed by a packing gland; and three seals are arranged at the packing, that is to say, firstly, a wedge-shaped sealing ring is arranged between the packing box and the valve body, secondly, back sealing functions are fulfilled by the packing box and the valve stem, and thirdly, the packing case is arranged on the packing box.
Description
Technical field
The invention belongs to valve technology field, particularly a kind of wildcard compact type forged steel selfsealings stop valve.
Background technique
Existing forged steel selfsealings stop valve is made up of valve body, valve gap, flap, valve rod, handwheel, Stem Mut, selfsealings pad and spacer etc.There are following two kinds in valve body and valve gap Connecting format: a kind of is through being threaded by the valve body outside and valve gap inner top side; Another kind is to connect valve body and support with the stud that is uniformly distributed with; Its shortcoming is: valve volume is big, and product design is relatively heavier, has increased product cost.Stuffing seal is made up of filler and hold-down grid, and hold-down grid is pressed on the filler through the swing bolt that is fixed in the support two ends, realizes the sealing here, and its shortcoming is swing bolt and a valve gap joint easy-rupturing in the high pressure operating mode.The sealing of valve body lumen is carried out pretension by the disk that is connected in the Stuffing box upper end with the adjusting bolt, and this structural volume is big, and the pretension regulating effect that lumen is sealed is not fine.The prompt facility of degree is not opened, closed to existing forged steel selfsealings stop valve, makes the pipeline workman can not carry out better controlled to flow.Existing its valve rod of forged steel selfsealings stop valve mainly is that the rotation and lifting form drives flap, and the valve rod rotation and lifting can make flap follow valve body sealing surface to rub, and causes the sealing surface scratch easily, influences its sealability, thereby causes the shortening of life of valve.The compatibility of existing forged steel selfsealings gate valve, stop valve accessory is bad, and the accessory of the gate valve of same bore, stop valve, Y type stop valve has many types, indirect increase the cost of house position's library management.
Summary of the invention
The objective of the invention is the deficiency that exists to existing technology, provide a kind of in strong, the long service life of little, the good seal performance of cavity volume, component compatibility, be convenient to regulate the wildcard compact type forged steel selfsealings stop valve of flow and suitable high temperature, high pressure.
Technological scheme of the present invention comprises parts such as valve body, valve gap, flap, valve rod, handwheel, Stem Mut, Stuffing box, folder row assembly.Flap is connected with the valve rod lower end, and valve gap is stretched out in the valve rod upper end, and the valve rod upper end is connected with Stem Mut; Stem Mut is put into valve gap upper end groove, and there have the support gland to be threaded with the valve gap groove to be fixing, and the Stem Mut upper end portion connects with handwheel; Handwheel has locking nut to follow Stem Mut to fix, and valve body is fixedly connected through screw thread with valve gap, is provided with Stuffing box between valve body and the valve gap; Stuffing box stretches out valve gap has the locking nut connection fixing; It is fixing that stuffing box place filler has Gland to connect, and is provided with the sealing of three places here, and there is wedge shape sealing ring at first place between Stuffing box and the valve body; Second place is the back seal function of Stuffing box and valve rod, and the 3rd place is that Stuffing box is provided with stuffing box.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is wherein a kind of structural representation of existing technology.
Fig. 3 is the another kind of structural representation of existing technology.
Fig. 4 is the structural representation of Gland of the present invention.
Fig. 5 is the structural representation of adjustment nut of the present invention.
Fig. 6 is the structural representation of valve gap of the present invention.
Fig. 7 is the structural representation of folder row assembly of the present invention.
Embodiment:
Wildcard compact type forged steel selfsealings stop valve as shown in Figure 1 comprises parts such as valve body 1, flap 2, valve rod 3, Stuffing box 4, valve gap 5, wedge shape sealing ring 6, spacer 7, filler 8, adjustment nut 9, Gland 10, Stem Mut 11, handwheel 12, plane needle bearing 13, support gland 14, folder row assembly 15, locking nut 16.Flap 2 is fixedly connected with valve rod 3 lower ends, and Stuffing box 4, valve gap 5 are passed in valve rod 3 upper ends, and Stem Mut 11 is put into valve gap 5 upper end grooves after respectively putting a plane needle bearing 13 up and down; Be connected with valve rod 11, there have support gland 14 to be threaded with valve gap 5 grooves to be fixing again, and Stem Mut 11 upper end portions connect with handwheel 12; It is fixing that handwheel 12 has locking nut 16 to be threaded with Stem Mut 11 upper ends, and valve gap 5 two ends muscle ribs are provided with positioning boss 43, and positioning boss 43 is connected with folder row assembly 15 grooves; It is fixing that folder row assembly 15 center fixed have hexagon socket head cap screw to connect in valve rod 3 grooves, and valve body 1 lumen is provided with seal arrangement 101, and Stuffing box 4 is provided with wedge shape sealing ring 6 and spacer 7 with valve body 1 cooperation place; Through fixing 1 inboard connection of valve body with valve gap 5 outside screw; Valve gap 5 fixes the back with valve body 1 and prevents to become flexible through spot welding, and Stuffing box 4 stretches out valve gap 5 and is connected with adjustment nut 9 and fixes, and the axial pre tightening force that has the adjustment nut 9 of Stuffing box 4 upper ends to apply reaches seal action; Be provided with two locking nuts 11 here; Lower locking nut applies pretightening force in order to realize the wedge shape sealing ring sealing, and upper locking nut is loosening in order to prevent lower locking nut, plays locking; Stuffing box 4 inside lower end are provided with back seal device 102 and are provided with stuffing seal 103 with the upper end; Back seal device 102 has the key groove between valve rod 3 and the Stuffing box 4 to seal, and reduces medium power and directly acts on filler 8, has prolonged the working life of stuffing seal 103 like this; Filler 8 in the stuffing seal 103 directly reaches sealing effect with Stuffing box 4 through the pretightening force that produces that is threaded by Gland 10.
From the above; Valve gap 5 outsides and valve body 1 inboard are through being threaded; Outside thread is processed in valve gap 5 underparts, internal thread is processed in valve body 1 upper end portion, directly has valve gap 5 to replace gland, has not only removed gland; Also cut the unnecessary volume in the valve body 1 lumen outside, improved the bulky problem of existing technology valve body lumen as shown in Figure 3.After the improvement of valve gap 5 structures; Except flap 2, valve body 1, valve rod 3 parts; It is general that remaining part all can be used for forged steel selfsealings gate valve, the forged steel selfsealings Y type stop valve of same bore; Reduced the kind of warehouse accessory, increased the efficiency of management, avoided having increased administration cost more because of accessory.
From the above; Gland 10 directly follows Stuffing box 4 through being threaded, and has improved existing technology use swing bolt as shown in Figure 2 and has passed through dowel fixes in the valve gap both sides, and swing bolt passes the hold-down grid center hole; There is nut to be connected with swing bolt; The pretightening force that both connect generation acts on filler through hold-down grid, reaches the effect of sealing, has avoided this structure swing bolt and valve gap cooperation place under the high pressure operating mode to occur phenomenon of rupture easily.
As shown in Figure 4, the neutral position is equipped with one groove and is convenient to the pipeline workman Gland is regulated on Gland 10 hexagons, and Gland 10 lower ends are provided with boss 41, have improved no boss filler to the not good situation of compression compensation.
As shown in Figure 5, adjustment nut 9 radial outer end portions are uniformly distributed with several roads groove are set, and the effect of groove is to make things convenient for fixedly pretension of workman, has improved existing band land and the big shortcoming of bolt adjusted volume.
As shown in Figure 6, valve gap 5 underparts are provided with boss 42, guarantee wedge shape sealing ring 6 and spacer 7 in airtight groove, have avoided no boss to the not good situation of sealing gasket compression compensation.
As shown in Figure 7; Set up the situation that folder row assembly 15 has prevented that valve rod 3 from rotating when opening and closing, valve rod 3 drive flap sealing surfaces 202 rub with valve body sealing surface 201 when having avoided valve opening and closing, thus the shortcoming of scratch sealing surface; Another effect of folder row assembly 15 is that folder row one end is cast with arrow labeled 32; Valve gap 5 muscle ribs are provided with dial 31 lets the pipeline workman can control the degree of keying accurately, and effective control flow rate has solved the problem that the pipeline workman judges keying by rule of thumb.
Claims (8)
1. wildcard compact type forged steel selfsealings stop valve; Comprise parts such as valve body 1, flap 2, valve rod 3, Stuffing box 4, valve gap 5, wedge shape sealing ring 6, spacer 7, filler 8, adjustment nut 9, Gland 10, Stem Mut 11, handwheel 12, plane needle bearing 13, support gland 14, folder row assembly 15, locking nut 16, flap 2 is fixedly connected with valve rod 3 lower ends, and Stuffing box 4, valve gap 5 are passed in valve rod 3 upper ends; Stem Mut 11 is put into valve gap 5 upper end grooves after respectively putting a plane needle bearing 13 up and down; Be connected with valve rod 11, there have support gland 14 to be threaded with valve gap 5 grooves to be fixing again, and Stem Mut 11 upper end portions connect with handwheel 12; Handwheel 12 has locking nut 16 to be threaded fixing with Stem Mut 11 upper ends; Valve gap 5 two ends muscle ribs are provided with positioning boss 43, and positioning boss 43 is connected with folder row assembly 15 grooves, and it is fixing that folder row assembly 15 center fixed have hexagon socket head cap screw to connect in valve rod 3 grooves; Valve body 1 lumen is provided with seal arrangement 101; Stuffing box 4 is provided with wedge shape sealing ring 6 and spacer 7 with valve body 1 cooperation place, and through fixing 1 inboard the connection with valve gap 5 outside screw of valve body, valve gap 5 fixes the back with valve body 1 and prevents to become flexible through spot welding; Stuffing box 4 stretches out valve gap 5 and is connected fixing with adjustment nut 9; The axial pre tightening force that has the adjustment nut 9 of Stuffing box 4 upper ends to apply reaches seal action, and Stuffing box 4 inside lower end are provided with back seal device 102 and are provided with stuffing seal 103 with the upper end, and back seal device 102 has the key groove between valve rod 3 and the Stuffing box 4 to seal; Reduce medium power and directly act on filler 8; Prolonged the working life of stuffing seal 103 like this, the filler 8 in the stuffing seal 103 has Gland 10 directly to reach sealing effect with Stuffing box 4 through the pretightening force that produces that is threaded.
2. the neutral position is equipped with groove one on Gland 10 hexagons, and Gland 10 lower ends are provided with boss 41.
3. adjustment nut 9 radial outer end portions are uniformly distributed with several roads groove are set.
4. valve gap 5 underparts are provided with boss 42.
5. folder row one end is cast with arrow labeled 32, and valve gap 5 muscle ribs are provided with dial 31.
6. a kind of compact type forged steel selfsealings stop valve according to claim 1 is characterized in that valve gap 5 outsides and valve body 1 inboard are through being threaded, and valve gap 5 lower end external process become outside thread, valve body 1 upper end machined to become internal thread.
7. a kind of compact type forged steel selfsealings stop valve according to claim 1 is characterized in that the Gland 10 direct Stuffing boxes 4 of following are through being threaded.
8. a kind of compact type forged steel selfsealings stop valve according to claim 1 is characterized in that in the middle of the folder row assembly 15 and two ends are equipped with groove, and there have hexagon socket head cap screw to connect to be fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103349481A CN102829195A (en) | 2012-09-05 | 2012-09-05 | Universal compact type forged steel self-sealing stop valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103349481A CN102829195A (en) | 2012-09-05 | 2012-09-05 | Universal compact type forged steel self-sealing stop valve |
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| CN102829195A true CN102829195A (en) | 2012-12-19 |
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| CN2012103349481A Pending CN102829195A (en) | 2012-09-05 | 2012-09-05 | Universal compact type forged steel self-sealing stop valve |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615544A (en) * | 2013-11-11 | 2014-03-05 | 锦州高中压阀门制造有限公司 | Direct-opening multi-seal angle stop valve |
| CN103899817A (en) * | 2014-03-05 | 2014-07-02 | 大丰市奥凯流体机械有限公司 | Parallel sliding sluice valve |
| CN104048050A (en) * | 2013-03-13 | 2014-09-17 | 苏州科迪流体控制设备有限公司 | Low-flow-resistance drain valve |
| CN104455493A (en) * | 2014-11-28 | 2015-03-25 | 浙江万龙机械有限公司 | Liquid chlorine regulating valve |
| CN105065701A (en) * | 2015-08-05 | 2015-11-18 | 浙江福瑞科流控机械有限公司 | Hard sealing lifting type brake plug valve and control method thereof |
| CN106224641A (en) * | 2016-09-13 | 2016-12-14 | 航天长征化学工程股份有限公司 | Valve spindle axial positioning support |
| CN106969158A (en) * | 2017-05-25 | 2017-07-21 | 五洲阀门股份有限公司 | A kind of high-temperature bellow valve |
| CN107152560A (en) * | 2017-07-05 | 2017-09-12 | 安徽省屯溪高压阀门有限公司 | A kind of water-cooling type high temperature forging steel valve |
| CN112728189A (en) * | 2020-12-23 | 2021-04-30 | 成都日进冶金锻造有限公司 | Canned type integrated form valve body |
| CN113803509A (en) * | 2021-08-25 | 2021-12-17 | 浙江中控流体技术有限公司 | Positioning, aligning and mounting tool for valve actuating mechanism support |
| CN114776818A (en) * | 2022-04-13 | 2022-07-22 | 江苏星河阀门有限公司 | Long-life instrument bellows seal stop valve group with good operation performance |
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| US20070071599A1 (en) * | 2005-09-29 | 2007-03-29 | Masahiko Arai | High-strength heat resisting cast steel, method of producing the steel, and applications of the steel |
| CN200952572Y (en) * | 2006-07-25 | 2007-09-26 | 王建飞 | Guiding stop valve |
| CN101893121A (en) * | 2010-07-26 | 2010-11-24 | 苏州纽威阀门股份有限公司 | Steel forging stop valve |
| CN102296940A (en) * | 2011-07-05 | 2011-12-28 | 戴义明 | Adjustable choke seat |
| CN202867860U (en) * | 2012-09-05 | 2013-04-10 | 叶思思 | Universal matching compact type forged steel self-sealing stop valve |
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2012
- 2012-09-05 CN CN2012103349481A patent/CN102829195A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070071599A1 (en) * | 2005-09-29 | 2007-03-29 | Masahiko Arai | High-strength heat resisting cast steel, method of producing the steel, and applications of the steel |
| CN200952572Y (en) * | 2006-07-25 | 2007-09-26 | 王建飞 | Guiding stop valve |
| CN101893121A (en) * | 2010-07-26 | 2010-11-24 | 苏州纽威阀门股份有限公司 | Steel forging stop valve |
| CN102296940A (en) * | 2011-07-05 | 2011-12-28 | 戴义明 | Adjustable choke seat |
| CN202867860U (en) * | 2012-09-05 | 2013-04-10 | 叶思思 | Universal matching compact type forged steel self-sealing stop valve |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048050A (en) * | 2013-03-13 | 2014-09-17 | 苏州科迪流体控制设备有限公司 | Low-flow-resistance drain valve |
| CN103615544A (en) * | 2013-11-11 | 2014-03-05 | 锦州高中压阀门制造有限公司 | Direct-opening multi-seal angle stop valve |
| CN103899817A (en) * | 2014-03-05 | 2014-07-02 | 大丰市奥凯流体机械有限公司 | Parallel sliding sluice valve |
| CN104455493A (en) * | 2014-11-28 | 2015-03-25 | 浙江万龙机械有限公司 | Liquid chlorine regulating valve |
| CN105065701A (en) * | 2015-08-05 | 2015-11-18 | 浙江福瑞科流控机械有限公司 | Hard sealing lifting type brake plug valve and control method thereof |
| CN106224641B (en) * | 2016-09-13 | 2024-02-20 | 航天长征化学工程股份有限公司 | Valve spindle axial positioning bracket |
| CN106224641A (en) * | 2016-09-13 | 2016-12-14 | 航天长征化学工程股份有限公司 | Valve spindle axial positioning support |
| CN106969158A (en) * | 2017-05-25 | 2017-07-21 | 五洲阀门股份有限公司 | A kind of high-temperature bellow valve |
| CN107152560B (en) * | 2017-07-05 | 2023-05-16 | 安徽省屯溪高压阀门股份有限公司 | Water-cooled high-temperature forged steel valve |
| CN107152560A (en) * | 2017-07-05 | 2017-09-12 | 安徽省屯溪高压阀门有限公司 | A kind of water-cooling type high temperature forging steel valve |
| CN112728189A (en) * | 2020-12-23 | 2021-04-30 | 成都日进冶金锻造有限公司 | Canned type integrated form valve body |
| CN113803509A (en) * | 2021-08-25 | 2021-12-17 | 浙江中控流体技术有限公司 | Positioning, aligning and mounting tool for valve actuating mechanism support |
| CN113803509B (en) * | 2021-08-25 | 2024-06-04 | 浙江中控流体技术有限公司 | Positioning, aligning and installing tool for valve actuating mechanism bracket |
| CN114776818A (en) * | 2022-04-13 | 2022-07-22 | 江苏星河阀门有限公司 | Long-life instrument bellows seal stop valve group with good operation performance |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhang Lizhi Document name: Notification of Passing Preliminary Examination of the Application for Invention |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121219 |