CN203477391U - Friction-free flat gate valve resistant to high temperature and high pressure - Google Patents
Friction-free flat gate valve resistant to high temperature and high pressure Download PDFInfo
- Publication number
- CN203477391U CN203477391U CN201320590361.7U CN201320590361U CN203477391U CN 203477391 U CN203477391 U CN 203477391U CN 201320590361 U CN201320590361 U CN 201320590361U CN 203477391 U CN203477391 U CN 203477391U
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- flashboard
- gate
- valve
- wedge shape
- shape frame
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Abstract
The utility model relates to a friction-free flat gate valve resistant to high temperature and high pressure. The friction-free flat gate valve resistant to high temperature and high pressure comprises a valve body, a valve seat, a gate assembly and a valve rod, wherein the valve seat is fixed inside the valve body; the gate assembly is connected with the valve rod; the gate assembly comprises a first gate, a second gate and a wedge-shaped frame; the opposite faces of the first gate and the second gate are inclined surfaces; a V-type groove is formed between the two inclined surfaces; the wedge-shaped frame and the V-type groove are in wedge surface opening fit; the wedge-shaped frame and the gate are in slippage fit in the direction parallel with the inclined surfaces; the wedge-shaped frame is provided with a limiting device; the first position of the limiting device makes contact with the first gate and the second gate; displacement exists between the second position of the limiting device and the first gate and between the second position of the limiting device and the second gate; the limiting device, the first gate and the second gate form upward pulling of the wedge-shaped frame, the first gate and the second gate are in linkage fit, friction-free opening and closing of the gate valve are achieved, at the same time, the sealing performance under the closing state is improved, and the service life is prolonged.
Description
Technical field
The utility model relates to a kind of gate valve, particularly a kind of without friction high temperature high voltage resistant plate valve.
Background technique
For a long time, on market, existing plate valve generally adopts integrated type flat board to make flashboard, and valve seat adopts movable.At valve closing state, flashboard and valve seat form sealing surface, blocking-up liquid communication, so sealing be evaluate gate valve quality an important indicator in gate valve opening-closing process.
In gate valve opening-closing process, it is large that flashboard moves up and down resistance, inevitably produces friction with valve seat, keying repeatedly due to flashboard, must make sealing surface wear, reduces sealability, even produce Seepage, the reduction of sealability means the gate valve shortening in working life; Movable valve seat needs O type circle sealing, and spring provides pretightening force, and O type loop material cannot high temperature high voltage resistant, and plate valve cannot be used under high temperature or high pressure operating mode.
Model utility content
In order to solve resistance in existing gate valve opening-closing process, cause greatly sealing surface heavy wear, the deficiencies such as non-refractory high pressure, it is a kind of without friction, high temperature high voltage resistant plate valve that the utility model provides, this adopts new on-off structure without friction plates gate valve, realizing gate valve opens and closes without friction, improve the sealability under closed condition simultaneously, increase the service life; In order to solve the situation of existing plate valve non-refractory, adopt valve seat and valve body to be directly welded, the displacement amount that before compensating by new structure, valve seat need to be unsteady and the pretension sealing force needing.
The technological scheme that the utility model adopts is: a kind of without friction plates gate valve, comprise valve body, valve seat, flashboard assembly and valve rod, the solid welding of described valve seat cover fixes on valve inner, described flashboard assembly is connected with valve rod, described flashboard assembly comprises the first flashboard and the second flashboard and wedge shape frame, the first flashboard and the second flashboard opposing side are inclined-plane, between two inclined-planes, form a V-type groove, described wedge shape frame upper end is connected with valve rod, described wedge shape frame struts and coordinates with V-type groove formation wedge surface, described wedge shape frame forms along the slippage of inclined-plane parallel direction and coordinates with flashboard, described wedge shape frame is provided with primary importance and contacts with the second flashboard with the first flashboard, the second place and the first flashboard and the second flashboard have the limit stoper of displacement amount, the first flashboard realized by described limit stoper and the second flashboard is linked, and three matches to realize on wedge shape frame and draws.
Described V-type groove bilateral symmetry has dovetail groove, and described wedge shape frame bilateral symmetry is provided with the boss suitable with dovetail groove.
Described flashboard assembly upper end is provided with automatic compensator.
Described automatic compensator comprises spring and limiting board, and described limiting board contacts with the first flashboard, the second flashboard, and described spring is fixed between limiting board upper end and valve rod lower end.
Described limit stoper comprises the limiting stopper that is arranged on wedge shape frame lower end, and described limiting stopper neutral position contacts with wedge shape frame lower end, and its two ends contact with the first flashboard and the second flashboard when primary importance.
Described limiting stopper is connected with wedge shape frame by built-in hexagon nut.
On the face that described the first flashboard contacts with valve seat with the second flashboard outside, be equipped with the first Sealing, described valve seat is provided with the second Sealing.
Described the first Sealing and the second Sealing upper/lower terminal all adopt inclined design.
The beneficial effects of the utility model are: in the utility model by being arranged to V-type groove between the first flashboard and the second flashboard, by wedge shape frame upper support gate open plate, make flashboard in opening-closing process and between valve seat without friction, extend flashboard working life, wedge shape frame forms slippage with flashboard and coordinates, strut and coordinate with V-type groove formation wedge surface, assurance flashboard and valve seat are closely fitted, thereby improve the sealability under closed condition.
Accompanying drawing explanation
Fig. 1 is assembling schematic diagram of the present utility model.
Fig. 2 coordinates sectional drawing for this uses novel wedge shape frame and flashboard.
Fig. 3 is used the partial enlarged drawing of A in novel assembling schematic diagram for this.
1-valve body, 2-valve seat, 3-limiting stopper, the built-in hexagon nut of 4-, 5-the first flashboard, 6-the second flashboard, 61-dovetail groove, 62-V type groove, 7-valve rod, 8-wedge shape frame, 81-boss, 9-the first Sealing, 10-the second Sealing, 11-limiting board, 12-spring.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described further:
As Fig. 1, shown in Fig. 2 and Fig. 3, a kind of without friction, high-temperature high-pressure flat-plate gate, comprise valve body 1, valve seat 2, flashboard assembly and valve rod 7, described valve seat 2 cover solid weldings fix on valve body 1 inside, described flashboard assembly is connected with valve rod 7, described flashboard assembly comprises the first flashboard 5 and the second flashboard 6 and wedge shape frame 8, the first flashboard 5 and the second flashboard 6 opposing sides are inclined-plane, between two inclined-planes, form a V-type groove 62, described wedge shape frame 8 upper ends are connected with valve rod 7, described wedge shape frame 8 struts and coordinates with V-type groove 62 formation wedge surfaces, described wedge shape frame 8 forms along the slippage of inclined-plane parallel direction and coordinates with flashboard, described wedge shape frame is provided with primary importance and contacts with the second flashboard with the first flashboard, the second place and the first flashboard and the second flashboard have the limit stoper of displacement amount, on described limit stoper and the first flashboard and the second flashboard formation wedge shape frame, draw, the first flashboard and the second flashboard are linked.
When flashboard assembly falls because gravity and spring promote upper limit position block 11 active forces on the flashboard of both sides, first, second flashboard coordinates with the slippage of wedge shape frame 8, cause the downward landing of flashboard, be placed on limit stoper, described limit stoper is mounted in the limiting stopper 3 of wedge shape frame lower end, described limiting stopper 3 neutral positions contact with wedge shape frame 8 lower ends, and its two ends contact with the first flashboard 5 and the second flashboard 6 when primary importance.And while carrying on flashboard assembly, due to the supporting effect of limit stoper, make it to contact first, second flashboard when primary importance, upwards interlock of the moving flashboard assembly of belt on wedge shape frame 8.
Described flashboard assembly upper end is provided with automatic compensator, and described automatic compensator comprises spring 12 and limiting board 11, and described limiting board 11 contacts with the first flashboard 5, the second flashboard 6, and described spring 12 is fixed on limiting board 11 upper ends.In flashboard assembly closing process, wedge shape frame 8 continues to move downward, its impact force due to medium in slippage cooperation and runner and have a little any to make first, the power that the second flashboard moves upward, and automatic compensator is by being arranged on the elastic force of the spring 12 of limiting board 11 upper ends, compress first, the second flashboard, while avoiding it to use in pressure duct, whole flashboard assembly is not stretched out automatically in contraction state, assurance is closed initial stage flashboard and is not contacted with sealing surface of seat, flashboard has arrived under valve body and just toward both sides, has stretched out after positioning step, guarantee without friction closing process.
Described V-type groove 62 bilateral symmetry have dovetail groove 61, and are provided with the dovetail boss 81 suitable with dovetail groove 61 in wedge shape frame 8 bilateral symmetry, in the slippage engagement process of assurance wedge shape frame 8 and flashboard, do not come off.
Closing process, initial stage at throttle down, spring promotes upper limit position block 11 to pressing down both sides flashboard, making both sides flashboard move to the spacing place of lower positioning block 3 no longer glides, then whole flashboard combination continues mobile, first upper limit position block 11 contacts valve body end positioning step suitable for reading, now two flashboards also almost contact valve body lower end positioning step simultaneously, but flashboard is between the upper and lower positioning step of valve body, to swing, not by completely stuck, upper positioning block 3 is not blocked and is moving by positioning step on valve body, flashboard is withstood no longer and moves down by positioning step under valve body, thereafter valve rod 7 drives wedge shape frame 8 to continue to move downward, wedge shape frame 8 promotes both sides flashboard and moves to both sides sealing surface of seat, until contact pretension sealing, valve forms after initial sealing, in valve pocket and flow to upper end medium and promote outlet end flashboard and be tightly attached on outlet end sealing surface of seat, realize the automatic-sealed effect under high pressure conditions, so being also applicable to high-pressure medium operating mode, this structure uses, as adopting high temperature resistant material, this valve makes the operating mode that is also applicable to High Temperature High Pressure.This valve, in whole closing process, does not rub between flashboard sealing surface and sealing surface of seat,
Opening process, valve rod 7 drives wedge shape frame 8 upwards to lift, wedge shape frame 8 moves upward between flashboard, motion initial stage spring promotes upper limit position block 11, the power of upper limit position block 11 promotion both sides gate valves is downward, flashboard is rested on the limited step of valve body bottom, but owing to moving on wedge shape frame 8, make two shoe brake plates to inside contracting, flashboard sealing surface and sealing surface of seat are departed from, depart to the certain distance limiting stopper 3 that no the rear wedge shape frame of friction 8 lower ends are not fixedly connected with and block flashboard bottom stage, drive flashboard to move upward with wedge shape frame 8, realize on frictionless and carrying, complete and open a sluice gate operation.
By this design, realized opening and closing without friction of gate valve, extend the working life of gate valve, by wedge shape frame 8 and flashboard, form slippage coordinates simultaneously, strut and coordinate with V-type groove 62 formation wedge surfaces, the initial sealing that guarantees flashboard and valve seat 2 pretension laminatings, high pressure conditions valve body media power participates in automatic-sealed, realizes the more better function of high sealing effect of pressure, thereby improve the sealability of this valve under each pressure level state, and the sealing effect under high-temperature high-pressure state.
Below described embodiment is only preferred implementation of the present utility model by reference to the accompanying drawings, and the not restriction to protection domain of the present utility model, any improvement of doing based on the utility model spirit all ought to be within the utility model protection domain.
Claims (8)
1. one kind without friction high temperature high voltage resistant plate valve, comprise valve body (1), valve seat (2), flashboard assembly and valve rod (7), the solid welding of described valve seat (2) cover fixes on valve body (1) inside, described flashboard assembly is connected with valve rod (7), it is characterized in that: described flashboard assembly comprises the first flashboard (5) and the second flashboard (6) and wedge shape frame (8), the first flashboard (5) and the second flashboard (6) opposing side are inclined-plane, between two inclined-planes, form a V-type groove (62), described wedge shape frame (8) upper end is connected with valve rod (7), described wedge shape frame (8) struts and coordinates with V-type groove (62) formation wedge surface, described wedge shape frame (8) forms along the slippage of inclined-plane parallel direction and coordinates with flashboard, described wedge shape frame (8) is provided with primary importance and contacts with the second flashboard (6) with the first flashboard (5), the second place and the first flashboard (5) and the second flashboard (6) have the limit stoper of displacement amount, the first flashboard (5) realized by described limit stoper and the second flashboard (6) is linked, and three matches to realize on wedge shape frame (8) and draws.
2. according to claim 1 a kind of without friction high temperature high voltage resistant plate valve, it is characterized in that, described V-type groove (62) bilateral symmetry has dovetail groove (61), and described wedge shape frame (8) bilateral symmetry is provided with the dovetail boss (81) suitable with dovetail groove (61).
3. a kind of nothing friction high temperature high voltage resistant plate valve according to claim 1, is characterized in that, described flashboard assembly upper end is provided with automatic compensator.
4. according to claim 3 a kind of without friction high temperature high voltage resistant plate valve, it is characterized in that, described automatic compensator comprises spring (12) and limiting board (11), described limiting board (11) contacts with the first flashboard (5), the second flashboard (6), and described spring (12) is fixed between limiting board (11) upper end and valve rod (7) lower end.
5. according to claim 1 a kind of without friction high temperature high voltage resistant plate valve, it is characterized in that, described limit stoper comprises the limiting stopper (3) that is arranged on wedge shape frame (8) lower end, described limiting stopper (3) neutral position contacts with wedge shape frame (8) lower end, and its two ends contact with the first flashboard (5) and the second flashboard (6) when primary importance.
6. a kind of nothing friction high temperature high voltage resistant plate valve according to claim 5, is characterized in that, described limiting stopper (3) is connected with wedge shape frame (8) by built-in hexagon nut (4).
7. according to claim 1 a kind of without friction high temperature high voltage resistant plate valve, it is characterized in that, on the face that described the first flashboard (5) contacts with valve seat (2) with the second flashboard (6) outside, be equipped with the first Sealing (9), described valve seat (2) is provided with the second Sealing (10).
8. a kind of nothing friction high temperature high voltage resistant plate valve according to claim 7, is characterized in that, described the first Sealing (9) and the second Sealing (10) upper/lower terminal all adopt inclined design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320590361.7U CN203477391U (en) | 2013-09-24 | 2013-09-24 | Friction-free flat gate valve resistant to high temperature and high pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320590361.7U CN203477391U (en) | 2013-09-24 | 2013-09-24 | Friction-free flat gate valve resistant to high temperature and high pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203477391U true CN203477391U (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320590361.7U Expired - Lifetime CN203477391U (en) | 2013-09-24 | 2013-09-24 | Friction-free flat gate valve resistant to high temperature and high pressure |
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| CN (1) | CN203477391U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470797A (en) * | 2013-09-24 | 2013-12-25 | 宣达实业集团有限公司 | Friction-free flat gate valve resistant to high temperature and high pressure |
| CN105972234A (en) * | 2016-05-03 | 2016-09-28 | 浙江石化阀门有限公司 | Opening type spherical surface sluice valve and special processing technology thereof |
| CN106286872A (en) * | 2015-05-25 | 2017-01-04 | 江苏中昊船用阀门制造有限公司 | High sealing, wear-resisting type oil cargo tank gate valve |
| CN106641304A (en) * | 2015-11-03 | 2017-05-10 | 江苏中昊船用阀门制造有限公司 | High-performance cargo oil tank sluice valve |
| CN112145726A (en) * | 2020-09-10 | 2020-12-29 | 济南德创试验仪器有限公司 | Flat gate valve |
-
2013
- 2013-09-24 CN CN201320590361.7U patent/CN203477391U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470797A (en) * | 2013-09-24 | 2013-12-25 | 宣达实业集团有限公司 | Friction-free flat gate valve resistant to high temperature and high pressure |
| CN106286872A (en) * | 2015-05-25 | 2017-01-04 | 江苏中昊船用阀门制造有限公司 | High sealing, wear-resisting type oil cargo tank gate valve |
| CN106641304A (en) * | 2015-11-03 | 2017-05-10 | 江苏中昊船用阀门制造有限公司 | High-performance cargo oil tank sluice valve |
| CN105972234A (en) * | 2016-05-03 | 2016-09-28 | 浙江石化阀门有限公司 | Opening type spherical surface sluice valve and special processing technology thereof |
| CN105972234B (en) * | 2016-05-03 | 2018-05-04 | 浙江石化阀门有限公司 | Prop open type ball surface gate valve and its special processing process |
| CN112145726A (en) * | 2020-09-10 | 2020-12-29 | 济南德创试验仪器有限公司 | Flat gate valve |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140312 |
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| CX01 | Expiry of patent term |