CN102563111A - High-pressure and energy-saving universal type parallel double-valve flap gate valve - Google Patents
High-pressure and energy-saving universal type parallel double-valve flap gate valve Download PDFInfo
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- CN102563111A CN102563111A CN2011103857395A CN201110385739A CN102563111A CN 102563111 A CN102563111 A CN 102563111A CN 2011103857395 A CN2011103857395 A CN 2011103857395A CN 201110385739 A CN201110385739 A CN 201110385739A CN 102563111 A CN102563111 A CN 102563111A
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- gate valve
- valve flap
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Abstract
The invention discloses a high-pressure and energy-saving universal type parallel double-valve flap gate valve, which comprises a valve body, a valve seat, a parallel double-valve flap component, a valve rod, a valve cover sealing component, a stuffing sealing component and a bracket, wherein a T-shaped groove used for connecting with the valve rod is arranged on a valve flap frame of the parallel double-valve flap component, a limiting screw for limiting the opening position of the valve flap is arranged on the valve flap frame, two limit holes for limiting the range of movement of the limiting screw is arranged in the T-shaped groove, and the head part of the valve rod is in a form of blocking the screw and preventing the screw from loosening out; a circular flow guide hole with the same dimension of a valve seat hole is arranged on the bottom of the valve flap frame, and the circular flow guide hole on the valve flap frame is flush with the valve seat hole if the gate valve is completely open to change the valve into a straight tube; and a disc spring group and an adjusting support are installed in the valve flap. The high-pressure and energy-saving universal type parallel double-valve flap gate valve disclosed by the invention has the advantages of reasonable structure, good universality and excellent energy-saving effect, so that the gate valve has brilliant generalization and application prospect in such high-end markets as supercritical thermal power, nuclear power and petrochemical hydrogenation, etc.
Description
Technical field
The present invention relates to a kind of parallel double flap gate valve.
Background technique
Most parts of existing parallel double flap gate valve can not be general with common gate valve, and flow resistance is bigger.And former parallel bivalve lobe gate valve ZL200820034537.X, patents such as ZL200820034540.1, structure are comparatively complicated, and manufacture difficulty is bigger.
Summary of the invention
The object of the present invention is to provide a kind of rational in infrastructure, the universal parallel double flap of Remarkable Energy Saving high-voltage energy-saving gate valve.
Technical solution of the present invention is:
The universal parallel double flap of a kind of high-voltage energy-saving gate valve; Comprise valve body, valve seat, parallel double flap assembly, valve rod, valve bonnet seal assembly, packing seal assembly, support; The valve petal shelf of parallel double flap assembly has and is used for the T type groove that is connected with restrictor bar; It is characterized in that: valve petal shelf is provided with spacing stop screw is carried out in the flap enable possition, and the spacing holes of two restriction stop screw movings range are arranged in the T type groove, and the valve rod head is and blocks screw, prevents the form that screw eases out; The valve petal shelf bottom has the water conservancy diversion circular hole measure-alike with valve seat orifice, and the water conservancy diversion circle during the gate valve standard-sized sheet on the valve petal shelf is concordant with valve seat orifice, makes valve become a straight tube; Dish spring group and adjustable support are housed in the flap.
The packing seal assembly is made up of two groups of two fillers, spacer ring is housed and can seals pressurization or the adapter of leak detection in the middle of two groups of stuffing box packing up and down.
Have indicator groove on the support, position indicator is contained on the valve rod and reaches in the indicator groove.
To with bore but the different valve of pressure level has a unified channel diameter external form and middle part diameter external form; All parts that valve gap is above and Wedge gate valve and parallel double flap gate valve are general.
Valve body and valve gap binding site are straight cylinder type.
The present invention is rational in infrastructure; Versatility is good, and energy-saving effect is remarkable, in high-end markets such as supercritical thermal power, nuclear power, petrochemical industry hydrogenation; Good popularization and application prospect is arranged, solved that the expensive valve body forging die of the high-end valve that advances with state generation is not had versatility and the difficult problem that is difficult to promote.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is with the general forging die of the valve body of bore different pressures, is used for the schematic representation of different pressures level.
Fig. 3 is of the present invention 6 " with upper valve body central structure and existing common central structure contrast schematic representation.
Fig. 4 is the valve body of band pod apertures structure of the present invention and the valve body forging comparison diagram of common Wedge gate valve and bivalve lobe parallel valve.
Embodiment
Fig. 1 is>6 " the structural representation of parallel double flap of band pod apertures.Parallel valve seat 2 and valve body 1 welding, valve petal shelf 6 has the hole with valve seat 2 same sizes.Hole during standard-sized sheet on the valve petal shelf is concordant with valve seat orifice, makes valve become a straight tube, greatly reduces flow resistance.
Dish spring 5 and adjustable support 5a are housed in two flaps 4; And pine is assigned in the valve petal shelf 6, and the dish spring classification and the compound mode that are fit to can make flap and valve seat set up preliminary sealing; Valve petal shelf is provided with spacing stop screw 7 is carried out in the flap enable possition; The spacing holes that two restriction stop screw movings range are arranged in the T type groove, valve rod 9 heads are and block screw, prevent the form that screw eases out, and guarantee the easy motion of flap and valve seat; Valve petal shelf 6 cooperates with two parallel valve seat surfaces and valve body, and the T type groove on the valve petal shelf 6 cooperates with the valve rod head.When Stem Mut 10 rotation, valve rod 9 is moved up and down realize the keying of valve, all enable possitions are by last sealing 12 and the spacing sealing of the valve rod head conical surface, and can realize the replace with pressure of stuffing box packing 14.
In valve gap 3 black boies 8, adopt heavy high pretightening force helical spring 16, and pretension bolt 15, nut 15a, and, can guarantee the reliable sealing at height cyclic stress bottom flange selfsealings position through optimal design.
In the packing seal assembly 11, in the middle of two groups of stuffing box packing 14 spacer ring 17 is housed, and can seals the adapter 18 of pressurization or leak detection; Dish spring group 21 and position limit cycle 22 on gland 19 and the pressing plate 20 are chosen through optimal design, can confirm the size and the quantity of bolt 23; To nut 24; Apply suitable screw-down torque value, it is reliable that filler is obtained, and the excellent sealability that keeps automatically.
Have indicator groove on the support 25, position indicator 26 is contained on the valve rod and reaches in the indicator groove, can show the enable possition of flap (or flashboard), and can limit switch be installed easily by the control requirement.
" valve of following bore, its structural principle and universal and Fig. 1 is similar to 6.Support is the form of being threaded with valve body, between the pretension bolt of heavy high pretightening force dish spring and valve gap a spacing pad is arranged, and tightens pretension bolt, can guarantee valve gap dynamically in reliable sealing under the pressure situation.
Also have parallel double flap assembly 13, position indication component 27 among the figure.
The same bore that Fig. 2 designs for the present invention is without the valve body external form schematic representation of pressure.Solid line among the figure, dotted line, double dot dash line is the forging profile of three kinds of different high pound levels, their general character is exactly to have common outside diameter of passage d1 and lumen outside diameter d 2, different general construction length L, the high H in valve body center, valve body bottom height and aperture D1, D2.Utilize this characteristic of same outer diameter as of different pressures level; Can make the die cavity that occupies maximum cost in the forging die have versatility; And the drift that changes blank size and punching can obtain the valve body forging of different pressures level; Practice thrift expensive die cost greatly, improved the feasibility that multi-ram forging technology is promoted greatly.
Fig. 3 is the contrast schematic representation of valve body appearance structure of the present invention (dotted portion) with common appearance structure (implementation part); The valve body and the valve gap binding site of normal appearance structure; Have a shoulder to be used for and being connected of support, the existence of this shoulder has increased forging die and has forged the complexity of technology, is unfavorable for the versatility of forging die; Not shouldered valve body of the present invention and valve gap binding site (being straight cylinder type); Very favourable to simplifying forging die and forging technology, it is little to have a volume, the comprehensive advantage that cost performance is high.
Fig. 4 is the valve body of band pod apertures structure of the present invention and the valve body forging comparison diagram of common Wedge gate valve and bivalve lobe parallel valve.The above three types of valves of size of visible center line are identical among the figure, and the Lower Half of forging die that will the band pod apertures adds a removable loose piece, can realize being fit to the versatility forging die of three types of valves, has further improved the feasibility of multi-ram forging die technology popularization.
Claims (5)
1. the universal parallel double flap of high-voltage energy-saving gate valve; Comprise valve body, valve seat, parallel double flap assembly, valve rod, valve bonnet seal assembly, packing seal assembly, support; The valve petal shelf of parallel double flap assembly has and is used for the T type groove that is connected with restrictor bar; It is characterized in that: valve petal shelf is provided with spacing stop screw is carried out in the flap enable possition, and the spacing holes of two restriction stop screw movings range are arranged in the T type groove, and the valve rod head is and blocks screw, prevents the form that screw eases out; The valve petal shelf bottom has the water conservancy diversion circular hole measure-alike with valve seat orifice, and the water conservancy diversion circle during the gate valve standard-sized sheet on the valve petal shelf is concordant with valve seat orifice, makes valve become a straight tube; Dish spring group and adjustable support are housed in the flap.
2. the universal parallel double flap of high-voltage energy-saving according to claim 1 gate valve is characterized in that: the packing seal assembly is made up of two groups of two fillers, spacer ring is housed and can seals pressurization or the adapter of leak detection in the middle of two groups of stuffing box packing up and down.
3. the universal parallel double flap of high-voltage energy-saving according to claim 1 and 2 gate valve is characterized in that: have indicator groove on the support, position indicator is contained on the valve rod and reaches in the indicator groove.
4. the universal parallel double flap of high-voltage energy-saving according to claim 1 and 2 gate valve is characterized in that: to bore but the different valve of pressure level has a unified channel diameter external form and middle part diameter external form; All parts that valve gap is above and Wedge gate valve and parallel double flap gate valve are general.
5. the universal parallel double flap of high-voltage energy-saving according to claim 1 and 2 gate valve, it is characterized in that: valve body and valve gap binding site are straight cylinder type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110385739 CN102563111B (en) | 2011-11-29 | 2011-11-29 | High-pressure and energy-saving universal type parallel double-valve flap gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110385739 CN102563111B (en) | 2011-11-29 | 2011-11-29 | High-pressure and energy-saving universal type parallel double-valve flap gate valve |
Publications (2)
| Publication Number | Publication Date |
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| CN102563111A true CN102563111A (en) | 2012-07-11 |
| CN102563111B CN102563111B (en) | 2013-03-13 |
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| CN 201110385739 Active CN102563111B (en) | 2011-11-29 | 2011-11-29 | High-pressure and energy-saving universal type parallel double-valve flap gate valve |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062427A (en) * | 2013-01-11 | 2013-04-24 | 李原华 | High-pressure flat gate valve |
| CN103671993A (en) * | 2012-09-20 | 2014-03-26 | 昆山尚达智机械有限公司 | Novel gate valve |
| CN104776240A (en) * | 2015-04-03 | 2015-07-15 | 哈托利海托阀门（杭州）有限公司 | Bellows parallel gate valve |
| CN106813002A (en) * | 2016-11-10 | 2017-06-09 | 林之铠 | A kind of chemical industry gate valve |
| CN113833901A (en) * | 2021-10-08 | 2021-12-24 | 江苏圣泰阀门有限公司 | Pressure seal valve gap structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4117577A1 (en) * | 1991-05-29 | 1992-12-03 | Sempell Babcock Ag | Knife gate valve |
| CN1223349A (en) * | 1998-12-08 | 1999-07-21 | 张忠巧 | Gate valve |
| CN1831394A (en) * | 2006-01-20 | 2006-09-13 | 白龙山 | Hydraulic bellows sluice valve |
| CN201013942Y (en) * | 2007-03-08 | 2008-01-30 | 南通高中压阀门有限公司 | Parallel slide valve |
| CN201013935Y (en) * | 2007-03-08 | 2008-01-30 | 南通高中压阀门有限公司 | Selftightening type gate valve |
| CN101696735A (en) * | 2009-10-12 | 2010-04-21 | 昆山昆阀有限公司 | Parallel sliding gate valve |
| CN202451865U (en) * | 2011-11-29 | 2012-09-26 | 南通高中压阀门有限公司 | High-pressure energy-saving general type parallel double disc gate valve |
-
2011
- 2011-11-29 CN CN 201110385739 patent/CN102563111B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4117577A1 (en) * | 1991-05-29 | 1992-12-03 | Sempell Babcock Ag | Knife gate valve |
| CN1223349A (en) * | 1998-12-08 | 1999-07-21 | 张忠巧 | Gate valve |
| CN1831394A (en) * | 2006-01-20 | 2006-09-13 | 白龙山 | Hydraulic bellows sluice valve |
| CN201013942Y (en) * | 2007-03-08 | 2008-01-30 | 南通高中压阀门有限公司 | Parallel slide valve |
| CN201013935Y (en) * | 2007-03-08 | 2008-01-30 | 南通高中压阀门有限公司 | Selftightening type gate valve |
| CN101696735A (en) * | 2009-10-12 | 2010-04-21 | 昆山昆阀有限公司 | Parallel sliding gate valve |
| CN202451865U (en) * | 2011-11-29 | 2012-09-26 | 南通高中压阀门有限公司 | High-pressure energy-saving general type parallel double disc gate valve |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671993A (en) * | 2012-09-20 | 2014-03-26 | 昆山尚达智机械有限公司 | Novel gate valve |
| CN103062427A (en) * | 2013-01-11 | 2013-04-24 | 李原华 | High-pressure flat gate valve |
| CN104776240A (en) * | 2015-04-03 | 2015-07-15 | 哈托利海托阀门（杭州）有限公司 | Bellows parallel gate valve |
| CN106813002A (en) * | 2016-11-10 | 2017-06-09 | 林之铠 | A kind of chemical industry gate valve |
| CN106813002B (en) * | 2016-11-10 | 2019-09-20 | 奉化市中新阀门有限公司 | A kind of chemical industry gate valve |
| CN113833901A (en) * | 2021-10-08 | 2021-12-24 | 江苏圣泰阀门有限公司 | Pressure seal valve gap structure |
| CN113833901B (en) * | 2021-10-08 | 2023-12-22 | 江苏圣泰阀门有限公司 | Valve cover structure of pressure sealing valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102563111B (en) | 2013-03-13 |
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