CN102563111B - 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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- CN102563111B CN102563111B CN 201110385739 CN201110385739A CN102563111B CN 102563111 B CN102563111 B CN 102563111B CN 201110385739 CN201110385739 CN 201110385739 CN 201110385739 A CN201110385739 A CN 201110385739A CN 102563111 B CN102563111 B CN 102563111B
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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-valve petal gate valve.
Background technique
Most parts of existing parallel double-valve petal gate valve can not be general with common gate valve, and flow resistance is larger.And former parallel double-disc valve ZL200820034537.X, the patents such as ZL200820034540.1, structure are comparatively complicated, and manufacture difficulty is larger.
Summary of the invention
The object of the present invention is to provide a kind of rational in infrastructure, the universal parallel double-valve petal gate valve of the significant high-voltage energy-saving of energy-saving effect.
Technical solution of the present invention is:
The universal parallel double-valve petal gate valve of a kind of high-voltage energy-saving, comprise valve body, valve seat, double parallel discs assembly, valve rod, valve bonnet seal assembly, packing seal assembly, support, the valve petal shelf band of double parallel discs assembly is useful on the T-shaped groove that is connected with valve rod, it is characterized in that: valve petal shelf is provided with spacing stop screw is carried out in the flap enable possition, the spacing holes that two restriction stop screw movings range are arranged in the T-shaped groove, valve rod head are and block screw, prevent the form that screw eases out; Valve petal shelf bottom with the measure-alike water conservancy diversion circular hole of valve seat orifice, the water conservancy diversion circular hole during the gate valve standard-sized sheet on the valve petal shelf is concordant with valve seat orifice, makes gate valve become a straight tube; Dish spring group is housed in the flap and regulates support.
The packing seal assembly is made of two groups of two fillers, up and down two groups of middle adapters of spacer ring being housed and can doing sealing pressing or leak detection of stuffing box packing.
With the indication groove, position indicator is contained on the valve rod and indicates in the groove on the support.
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-valve petal 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 the high-end markets such as supercritical thermal power, nuclear power, petrochemical industry hydrogenation, good popularizing 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
The invention will be further described below in conjunction with drawings and Examples.
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 Double-clack parallel valve.
Embodiment
Fig. 1 for 6 " the structural representation with the double parallel discs of pod apertures.Parallel valve seat 2 and valve body 1 welding, valve petal shelf 6 with the hole of 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 is housed in two flaps 4 and regulates support 5a, and pine is assigned in the valve petal shelf 6, 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 hole that two restriction stop screw movings range are arranged in the T-shaped groove, valve rod 9 heads are and block screw, prevent the form that screw eases out, guarantee the easy motion of flap and valve seat, the valve seat surface that valve petal shelf 6 is parallel with two and valve body cooperate, and the T-shaped 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 upper sealing 12 and valve rod head conical surface position limiting sealed, 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 through optimal design, can guarantee the reliable sealing at height cyclic stress bottom flange selfsealings position.
In the packing seal assembly 11, in the middle of two groups of stuffing box packing 14 spacer ring 17 is housed, and can do the adapter 18 of sealing pressing 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 determine 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 automatically keeps.
On the support 25 with the indication groove, position indicator 26 be contained on the valve rod and the indication groove in, can show the enable possition of flap (or flashboard), and can be by control requirement mounting limit switch easily.
" 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 double parallel discs 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 feature 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, greatly save expensive die cost, greatly improved the feasibility that multi-ram forging technique is promoted.
Fig. 3 is the contrast schematic representation of valve body appearance structure of the present invention (dotted portion) and common appearance structure (realization part), valve body and the valve gap binding site of normal appearance structure, there is 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 technique, the versatility that is unfavorable for 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 technique, it is little to have 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 Double-clack parallel valve.The above size three class valves of visible center line are identical among the figure, and will add a removable loose piece with the Lower Half of the forging die of pod apertures, can realize being fit to the versatility forging die of three class valves, further improved the feasibility that multi-ram forging die technique is promoted.
Claims (5)
1. universal parallel double-valve petal gate valve of high-voltage energy-saving, comprise valve body, valve seat, double parallel discs assembly, valve rod, valve bonnet seal assembly, packing seal assembly, support, the valve petal shelf band of double parallel discs assembly is useful on the T-shaped groove that is connected with valve rod, it is characterized in that: valve petal shelf is provided with spacing stop screw is carried out in the flap enable possition, the spacing holes that two restriction stop screw movings range are arranged in the T-shaped groove, valve rod head are and block screw, prevent the form that screw eases out; Valve petal shelf bottom with the measure-alike water conservancy diversion circular hole of valve seat orifice, the water conservancy diversion circular hole during the gate valve standard-sized sheet on the valve petal shelf is concordant with valve seat orifice, makes gate valve become a straight tube; Dish spring group is housed in the flap and regulates support.
2. the universal parallel double-valve petal gate valve of high-voltage energy-saving according to claim 1 is characterized in that: the packing seal assembly is made of two groups of two fillers, in the middle of two groups of stuffing box packing spacer ring is housed up and down and can does the adapters of sealing pressing or leak detection.
3. the universal parallel double-valve petal gate valve of high-voltage energy-saving according to claim 1 and 2 is characterized in that: on the support with the indication groove, position indicator be contained on the valve rod and the indication groove in.
4. the universal parallel double-valve petal gate valve of high-voltage energy-saving according to claim 1 and 2 is characterized in that: to bore but the different gate 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-valve petal gate valve are general.
5. the universal parallel double-valve petal gate valve of high-voltage energy-saving according to claim 1 and 2, 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 |
|---|---|
| CN102563111A CN102563111A (en) | 2012-07-11 |
| CN102563111B true 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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Families Citing this family (5)
| 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 |
| 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 |
| 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 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4117577A1 (en) * | 1991-05-29 | 1992-12-03 | Sempell Babcock Ag | Knife gate valve |
| CN1101906C (en) * | 1998-12-08 | 2003-02-19 | 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 |
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