CN205001535U - Double containment flanged gate valve - Google Patents
Double containment flanged gate valve Download PDFInfo
- Publication number
- CN205001535U CN205001535U CN201520802228.2U CN201520802228U CN205001535U CN 205001535 U CN205001535 U CN 205001535U CN 201520802228 U CN201520802228 U CN 201520802228U CN 205001535 U CN205001535 U CN 205001535U
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- CN
- China
- Prior art keywords
- valve
- flashboard
- valve body
- bulge loop
- gland
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- Expired - Fee Related
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Abstract
The utility model relates to a double containment flanged gate valve, which comprises the following components: a valve body, a valve cove, the valve rod, the packing box, gland, the flashboard, and handle, valve body upper portion seal installation valve gap, valve gap upper portion flange joint gland, the vertical flashboard that sets up in the valve body, flashboard and valve rod fixed connection, the valve rod is the coaxial valve gap that passes in proper order upwards, gland, bottom surface middle part system has a radial bulge loop under the valve body, coaxial coating rubber sealing layer on the bulge loop, there is a recess at flashboard lower extreme face diameter to the system, the valve body is closed, bulge loop coaxial sealing inlays the dress in the recess of flashboard. The application provides a novel gate valve has the half -turn bulge loop in valve body bottom system, and the bottom surface is provided with the axial notch under the flashboard, work as the fluid passage, in the time of need closing the valve, the below flashboard, be embedded into the bulge loop of valve body in the recess of flashboard can, easy operation does not conveniently retain liquid, does not corrode the valve body.
Description
Technical field
The utility model belongs to valve field, is a kind of double-sealing Flange Gate Valves.
Background technique
The gate valve of Flange Gate Valves to be Placement be flange, this Placement is the most common.Reliable and stable when Flange Gate Valves uses in pipeline, so often adopt Flange Gate Valves on pressure duct.Moving direction and the flow direction of Flange Gate Valves flashboard are perpendicular, and gate valve can only make standard-sized sheet and complete shut-down, can not make adjustments and throttling.Flashboard has two sealing surfaces, and two sealing surfaces of the most frequently used pattern gate valve form wedge shape, key groove is different with valve parameter, are generally 50.The flashboard of Wedge gate valve can make an entirety, is called rigidity flashboard; Also can make the flashboard that can produce micro-deformation, to improve its manufacturability, make up the deviation that sealing surface angle produces in course of working, this flashboard is called Flexible disc.
Find following relevant to the application patent documentation by retrieval, concrete disclosure is as follows:
Patent documentation 102865379A discloses a kind of gate valve, comprise valve body and wedge shape flashboard, described wedge shape flashboard is provided with ram seal face, described valve body is provided with the sealed department coordinated with described ram seal face, described sealed department comprises the primary sealing area being located at body base and the secondary sealing area be located on valve body from top to bottom, primary sealing area and described secondary sealing area are an angle α, during gate valve closed condition, described secondary sealing area and described ram seal face gluing, sealing, form Seal cage between described primary sealing area and described wedge shape flashboard.
The open Flange Gate Valves of patent documentation 102155545A, comprise valve body, flashboard, flange, valve gap, valve rod, it is characterized in that, in valve body, valve seat is equipped with respectively in the left and right sides, is provided with wedge-type flashboard in valve seat, valve body two ends and pipeline connection port place are equipped with flange, valve body is connected with valve gap bolt, in the middle part of valve gap, valve rod is housed, and valve rod lower end is connected with flashboard, Stem Mut is equipped with on valve rod top, and Stem Mut upper end is connected with handwheel.
The flap that existing gate valve is all be all be inlaid in valve body lower portion groove in carry out to valve body sealing, the groove of so this existence can retain liquid usually, corrodes valve body, and this technology is urgently improved.Above-mentioned patent does not still address this problem.
Model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of cost low, etch-proof Novel Brake Valve.
The technological scheme that the utility model realizes object is as follows:
A kind of Flange Gate Valves, comprise valve body, valve gap, valve rod, stuffing box, Gland, flashboard and handle, valve gap is installed in valve body top seal, valve gap upper flange bonding pad gland, vertically arrange flashboard in valve body, flashboard is fixedly connected with valve rod, valve rod is upwards successively coaxially through valve gap, Gland, its end and handwheel are fixedly mounted with, and the inside of described valve gap upper end is provided with the stuffing box with valve gap one, and described stuffing box is built with stuffing box packing; In the middle part of valve body bottom surface, be shaped with a radial convex loop, coaxial coating rubber sealing layer on bulge loop, in flashboard lower end surface, radial direction is shaped with a groove, and valve body is closed, and bulge loop co-axial seal is inlaid in the groove of flashboard.
The beneficial effects of the utility model are:
1, the Flange Gate Valves that the application provides is shaped with half-turn bulge loop at body base, flashboard bottom surface is provided with axial notch, when liquid passes through, when needing throttle down, below flashboard, is embedded in the groove of flashboard by the bulge loop of valve body, simple to operation, not remaining liquid, does not corrode valve body.
2, the Flange Gate Valves that the application provides adopts the mode of valve body bulge loop and flashboard groove setting-in to carry out closing passage, and groove and bulge loop form two seals, improve the sealing of valve further.
3, the double-sealing Flange Gate Valves stuffing box packing that the application provides increases by a circle graphite annulus at two-layer O shape sealing rubber ring, the greasy property of graphite annulus is better, the O shape sealing rubber ring that can distribute up and down to it plays the effect supporting and lubricate, prevent O shape sealing rubber ring because the wrench deformation of valve rod, reduce sealing effect; Meanwhile, graphite annulus originally has good seal action, increases the sealing of whole sealing mechanism.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is part A enlarged diagram in Fig. 1;
Fig. 3 is the structural representation of stuffing box packing.
Embodiment
Below in conjunction with accompanying drawing, also by specific embodiment, the utility model is described in further detail, and following examples are descriptive, are not determinate, can not limit protection domain of the present utility model successively.
A kind of double-sealing Flange Gate Valves, comprise valve body 6, valve gap 5, valve rod 2, stuffing box 4, Gland 3, flashboard 7 and handle 1, valve gap is installed in valve body top seal, valve gap upper flange bonding pad gland, vertically arrange flashboard in valve body, flashboard is fixedly connected with valve rod, valve rod is upwards successively coaxially through valve gap, Gland, its end and handwheel are fixedly mounted with, and the inside of described valve gap upper end is provided with the stuffing box with valve gap one, and described stuffing box is built with stuffing box packing 4.
The innovation of the application is:
1, in the middle part of valve body bottom surface, be shaped with a radial convex loop 8, coaxial coating rubber sealing layer on bulge loop 8, be shaped with a groove 10 in flashboard lower end surface radial direction, valve body is closed, and bulge loop co-axial seal is inlaid in the groove of flashboard, completes the sealing of valve body.The Novel Brake Valve that the application provides is shaped with half-turn bulge loop at body base, and flashboard bottom surface is provided with axial notch, when liquid passes through, when needing throttle down, below flashboard, is embedded in the groove of flashboard by the bulge loop of valve body, simple to operation, not remaining liquid, does not corrode valve body.The Novel Brake Valve that the application provides adopts the mode of valve body bulge loop and flashboard groove setting-in to carry out closing passage, and groove and bulge loop form two seals, improves the sealing of valve further.
2, the structure of described stuffing box packing is: by gland lower end surface, rubber sealing boot 2-1 is coaxially installed with successively in the outer rim of valve rod, O shape sealing rubber ring 2-2, graphite annulus 2-3, O shape sealing rubber ring 2-4, in order to easy for installation, an O shape sealing rubber ring embedding slot is shaped with in the lower end surface of rubber sealing boot, adjacent O shape sealing rubber ring 2-2 is inlaid in this groove, the sealing of the two can be increased, wherein, the external diameter of described graphite annulus is identical with the external diameter of rubber sealing boot, the external profile diameter of graphite annulus burns and is greater than upper and lower two O shape sealing rubber rings, a slightly large circle outer rim out can with the inner edge of valve gap to contacting, avoid the possibility that liquid is revealed by valve gap inner edge, increase sealing.The sealing configuration of the packing ring that the application provides has quadruple sealing function; rubber sealing boot, O shape sealing rubber ring, graphite annulus, O shape sealing rubber ring from top to bottom successively; rubber sealing boot can stop the broken end of dust of large particle dust or the various material entered from Gland top; the O shape sealing rubber ring of upper and lower two-layer spaced and parallel setting seals up the axis of the liquid in valve body and radial two way sealed; namely achieve the excellent sealing of Gland and valve gap, effectively liquid is sealed.The greasy property of graphite annulus is better, and the O shape sealing rubber ring that can distribute up and down to it plays the effect supporting and lubricate, and prevents O shape sealing rubber ring because the wrench deformation of valve rod, reduces sealing effect; Meanwhile, graphite annulus originally has good seal action, increases the sealing of whole sealing mechanism.
Claims (1)
1. a double-sealing Flange Gate Valves, comprise valve body, valve gap, valve rod, stuffing box, Gland, flashboard and handle, valve gap is installed in valve body top seal, valve gap upper flange bonding pad gland, vertically arrange flashboard in valve body, flashboard is fixedly connected with valve rod, valve rod is upwards successively coaxially through valve gap, Gland, its end and handwheel are fixedly mounted with, and the inside of described valve gap upper end is provided with the stuffing box with valve gap one, and described stuffing box is built with stuffing box packing; It is characterized in that: in the middle part of valve body bottom surface, be shaped with a radial convex loop, coaxial coating rubber sealing layer on bulge loop, in flashboard lower end surface, radial direction is shaped with a groove, valve body is closed, bulge loop co-axial seal is inlaid in the groove of flashboard, the structure of described stuffing box packing is: by gland lower end surface, rubber sealing boot, O shape sealing rubber ring, graphite annulus, O shape sealing rubber ring is coaxially installed with successively in the outer rim of valve rod, be shaped with an O shape sealing rubber ring embedding slot in the lower end surface of rubber sealing boot, adjacent O shape sealing rubber ring is inlaid in this groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520802228.2U CN205001535U (en) | 2015-10-13 | 2015-10-13 | Double containment flanged gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520802228.2U CN205001535U (en) | 2015-10-13 | 2015-10-13 | Double containment flanged gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205001535U true CN205001535U (en) | 2016-01-27 |
Family
ID=55158423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520802228.2U Expired - Fee Related CN205001535U (en) | 2015-10-13 | 2015-10-13 | Double containment flanged gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205001535U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461509A (en) * | 2017-10-09 | 2017-12-12 | 铜陵天海流体控制股份有限公司 | A kind of high reliability elastic soft sealing gate valve |
| CN110374937A (en) * | 2019-08-15 | 2019-10-25 | 新疆玉象胡杨化工有限公司 | Shower device is led in liquid ammonium nitrate pump inlet |
| CN111022686A (en) * | 2019-12-11 | 2020-04-17 | 铜陵天海流体控制股份有限公司 | Wedge gate valve |
-
2015
- 2015-10-13 CN CN201520802228.2U patent/CN205001535U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461509A (en) * | 2017-10-09 | 2017-12-12 | 铜陵天海流体控制股份有限公司 | A kind of high reliability elastic soft sealing gate valve |
| CN110374937A (en) * | 2019-08-15 | 2019-10-25 | 新疆玉象胡杨化工有限公司 | Shower device is led in liquid ammonium nitrate pump inlet |
| CN111022686A (en) * | 2019-12-11 | 2020-04-17 | 铜陵天海流体控制股份有限公司 | Wedge gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160127 Termination date: 20171013 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |