CN105972238A - Valve body moving type on-off valve for industrial pipelines - Google Patents
Valve body moving type on-off valve for industrial pipelines Download PDFInfo
- Publication number
- CN105972238A CN105972238A CN201610590145.0A CN201610590145A CN105972238A CN 105972238 A CN105972238 A CN 105972238A CN 201610590145 A CN201610590145 A CN 201610590145A CN 105972238 A CN105972238 A CN 105972238A
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- China
- Prior art keywords
- valve
- pipe
- rubber sleeve
- seal rubber
- valve body
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
- F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
- F16K3/26—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member
- F16K3/262—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member with a transverse bore in the valve member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
- Sliding Valves (AREA)
Abstract
The invention relates to a valve body moving type on-off valve for industrial pipelines. The valve body moving type on-off valve is mainly used for solving quality and pollution problems caused by casting machining of present valves. The valve body moving type on-off valve comprises an outer valve pipe and an inner valve pipe. Pipe openings in the two ends of the inner valve pipe serve as an input opening and an output opening respectively and are provided with flanges respectively. The inner valve pipe is provided with a partition, the partition partitions the inner valve pipe into an input section and an output section, the output section is provided with an output valve hole, and the input section is provided with an input valve hole and a balance hole. Three sealing rubber sleeves are arranged between the inner valve pipe and the outer valve pipe, and a water inlet and outlet cavity and a balance water cavity are formed between the sealing rubber sleeves. When the outer valve pipe moves leftwards or rightwards, the valve is switched on or switched off. By the adoption of industrial pipe products, the valve body moving type on-off valve is convenient to machine, reliable in quality and stable in performance, and the problems that casting type valves are not uniform in quality, high in cost and high in pollution are eradicated. The valve body moving type on-off valve is not influenced by the pressure of a fluid medium, is switched on or switched off in a rolling mode, is small in abrasion and on-off flow resistance, large in flow and good in sealing performance and can be used in industrial pipe networks for conveying liquid or gas.
Description
Technical field
The present invention relates to, by pipeline conveying gas or the opening and closing device of liquid, be specifically related to a kind of valve for industrial pipeline.
Background technology
In the pressure-bearing valve of industrial pipeline, the motility of economy and design owing to taking into account cost, the molding of its valve housing and input and delivery outlet all uses casting processing, owing to casting technique is by all factors of size, wall thickness, weather, raw material and constructing operation, foundry goods there will be the various casting flaws such as sand holes, pore, crackle, shrinkage porosite, shrinkage cavity and field trash, the product formed, quality is the most unstable.And cast the most serious to the pollution of soil, atmospheric environment.The consumption of the energy is also occupied first of industry, therefore to change this present situation, be necessary for finding new technical scheme, change existing conventional valves structure.
Summary of the invention
In order to solve technical problem present in above-mentioned prior art, it is an object of the invention to provide a kind of valve body movable type controlled valve for industrial pipeline, utilize the pipe fitting of dimension as the main material of valve member, province's material is energy-conservation, anticipated reduction workpiece cost more than 50%, is all better than machining foundry goods from performance and cost.Therefore valve integral manufacturing Technology design is crucial.
The present invention is by realizing the technical scheme that its purpose is taked: a kind of valve body movable type controlled valve for industrial pipeline, including outer valve pipe and the internal valve pipe being positioned at outer valve pipe；Orchid is managed respectively on the input port at described internal valve pipe two ends and delivery outlet；Described internal valve pipe is provided with partition, is divided into input section and deferent segment, and deferent segment is provided with output valve opening, and input section is provided with input valve opening peace weighing apparatus hole；Seal rubber sleeve A, seal rubber sleeve B and seal rubber sleeve C is set between described internal valve pipe and outer valve pipe, the outer of three is respectively separated and is fixed in outer valve inside pipe wall, the interior edge of three is respectively and fixedly connected to the outer wall of internal valve pipe, wherein the interior edge of seal rubber sleeve A is fixed on before output valve opening, the interior edge of seal rubber sleeve B is fixed between input valve opening peace weighing apparatus hole, the interior edge of seal rubber sleeve C is fixed on after balance pipe, the cavity formed between described seal rubber sleeve A and seal rubber sleeve B is turnover water cavity, and the cavity formed between described seal rubber sleeve B and seal rubber sleeve C is balance water cavity；When described outer valve pipe racks movable sealing gum cover moves left and right, seal rubber sleeve B Guan Bi or unlatching input valve opening, make valve be in the state of being turned on and off.
The gross area of the gross area of described balance pipe≤described input valve opening.
Inside and outside conical surface pressure ring and location pressure ring that the outer of described seal rubber sleeve A, seal rubber sleeve B and seal rubber sleeve C three is passed through respectively are fixed on described outer valve inside pipe wall；Described inside and outside conical surface pressure ring overlapping is clamped seal rubber sleeve outer and is allowed to be pressed on pressure ring termination, location.
The inner conical surface pressure ring being positioned at outer valve pipe two ends sets screw thread.
One end of described male cone (strobilus masculinus) pressure ring is provided with gum cover left-hand thread flange collar.
Described flange is threadeded with internal valve tube end, sets stroke limit nut, set sealing ring between described stroke limit nut and flange inside flange.Basic point
Beneficial effects of the present invention:The main body of the present invention uses industrial pipes, the simple low cost of technique, assembles the simplest, reliable in quality is stable, and the levels of audit quality having stopped foundry goods class valve is uneven, and high cost, high pollution, seal wear-resistant are poor, working resistance is big and low performance, inefficient operating characteristic；During valve working, not affected by fluid medium pressure, because it opens and closes for sealed rolling, wear and tear the least, the resistance of switch is the least and constant, and flow resistance is little, flow is big, and sealing property is excellent.The present invention can be used in the industrial pipe network of conveying liquid or gas.
Accompanying drawing explanation
Fig. 1 is that valve open mode structure of the present invention is cutd open and shown schematic diagram；
Fig. 2 is that valve-closed state structure of the present invention is cutd open and shown schematic diagram；
Fig. 3 is that male cone (strobilus masculinus) ring structure of the present invention cuts open and shows schematic diagram；
Fig. 4 is that inner conical surface ring structure of the present invention cuts open and shows schematic diagram；
Fig. 5 is that the present invention inside and outside conical surface pressure ring combinative structure cuts open and shows schematic diagram.
In figure: 1, inner conical surface pressure ring, 2, male cone (strobilus masculinus) pressure ring, 3, flange, 4, seal O, 5, stroke limit nut, 6, seal rubber sleeve A, 7, location pressure ring, 8, turnover water cavity, 9, seal rubber sleeve B, 10, input port, 11, balance water cavity, 12, seal rubber sleeve C, 13, delivery outlet, 14, outer valve pipe, 15, output valve opening, 16, input valve opening, 17, balance pipe, 18, internal valve pipe, 19, cut off.
Detailed description of the invention
Take one section of pipe matched with industrial pipeline caliber as internal valve pipe 18, the two ends mouth of pipe is respectively as the input port 10 of valve and delivery outlet 13, internal valve pipe 18 stage casing is provided with partition 19, internal valve pipe 18 is divided into two sections, it is respectively input section and deferent segment, deferent segment is provided with output valve opening 15, and input section is provided with input valve opening 16 and balance pipe 17, as shown in Figure 1, 2.The interior edge of three seal rubber sleeves is socketed in the corresponding fixing groove of internal valve pipe 18 outer wall respectively.Inner conical surface pressure ring 1 and male cone (strobilus masculinus) pressure ring 2, the location pressure ring 7 of band screw thread it is inserted in respectively from outer valve pipe 14 termination, assemble successively, as Figure 1-5, till the other end loads onto the inner conical surface pressure ring 1 of male cone (strobilus masculinus) pressure ring 2 and band screw thread (be positioned at centre inner conical surface pressure ring 1 without screw thread, be only located at the inner conical surface pressure ring 1 at two ends with screw thread)；Every seal rubber sleeve outer is inserted in male cone (strobilus masculinus) pressure ring 2, by the stub end left-hand thread of the i.e. seal rubber sleeve in its outer in male cone (strobilus masculinus) pressure ring 2 flange collar simultaneously.Related for internal valve pipe 18 three seal rubber sleeves are filled in together with subsidiary all parts in the outer valve pipe 14 of valve body, coordinates, finally by inner conical surface pressure ring 1 spinning of end together with the pressure ring 7 of location.After inner conical surface pressure ring 1 spinning, left-hand thread part seal rubber sleeve on male cone (strobilus masculinus) pressure ring 2 can be pushed, be coordinated by location pressure ring 7 extruding, make seal rubber sleeve and the outer valve pipe 14 abundant deadend of inner surface.Seal rubber sleeve between internal valve pipe 18 and outer valve pipe 14 is followed successively by seal rubber sleeve A6, seal rubber sleeve B9 and seal rubber sleeve C12.The interior edge of seal rubber sleeve A6 is fixed on before output valve opening 15, the interior edge of seal rubber sleeve B9 is fixed between input valve opening 16 and balance pipe 17, the interior edge of seal rubber sleeve C12 is fixed on after balance pipe 17, the cavity formed between seal rubber sleeve A and seal rubber sleeve B is turnover water cavity 8, and the cavity formed between seal rubber sleeve B and seal rubber sleeve C is balance water cavity 11.In order to the assembly and disassembly making valve are convenient, internal valve pipe 18 two ends are designed to spiral nipple, for guaranteeing sealing property and stroke limiting to valve body moving switch simultaneously, stroke limit nut 5 is set, as shown in Figure 1, 2, stroke limit nut 5 side is spacing contact surface, opposite side is for sealing inner cone dignity, seal and set without the outer silk groove of spiral between inner cone dignity and flange 3, around being configured with sealing O 4 on groove, and by inner cone dignity with flange 3 tight compression, and then guarantee between flange 3 and stroke limit nut 5 excellent sealing.Flange 3 is for being connected with industrial pipeline.Locked hand is set, it is simple to mobile valve makes valve opening and closing, and locks under valve open-close state on outer valve pipe 14.
The operation principle of the present invention: valve body is outer valve pipe 14 energy left and right transverse shifting, and when moving to delivery outlet 13, seal rubber sleeve B covers input valve opening 16, and valve is closed；When moving to input port 10, seal rubber sleeve B rolls and pulls open, and input valve opening 16 is opened, and valve is opened.The effect of balance pipe is to ensure that the tow sides bearing capacity that seal rubber sleeve B is covered at the hermetic unit inputted on valve opening is equal, makes pressure balance, so that it is guaranteed that seal rubber sleeve B is for inputting the sealing property of valve opening.During the gross area of the gross area of balance pipe≤described input valve opening, valve can time delay Slow Close.
Above are only embodiments of the invention, it will be apparent to those skilled in the art that the present invention has multiple change and change.Within all thought in the present invention and principle, making any amendment, equivalent, improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. the valve body movable type controlled valve for industrial pipeline, it is characterised in that: include outer valve pipe and be positioned at the internal valve pipe of outer valve pipe；Orchid is managed respectively on the input port at described internal valve pipe two ends and delivery outlet；Described internal valve pipe is provided with partition, is divided into input section and deferent segment, and deferent segment is provided with output valve opening, and input section is provided with input valve opening peace weighing apparatus hole；Seal rubber sleeve A, seal rubber sleeve B and seal rubber sleeve C is set between described internal valve pipe and outer valve pipe, the outer of three is respectively separated and is fixed in outer valve inside pipe wall, the interior edge of three is respectively and fixedly connected to the outer wall of internal valve pipe, wherein the interior edge of seal rubber sleeve A is fixed on before output valve opening, the interior edge of seal rubber sleeve B is fixed between input valve opening peace weighing apparatus hole, the interior edge of seal rubber sleeve C is fixed on after balance pipe, the cavity formed between described seal rubber sleeve A and seal rubber sleeve B is turnover water cavity, and the cavity formed between described seal rubber sleeve B and seal rubber sleeve C is balance water cavity；When described outer valve pipe racks movable sealing gum cover moves left and right, seal rubber sleeve B Guan Bi or unlatching input valve opening, make valve be in the state of being turned on and off.
Valve body movable type controlled valve for industrial pipeline the most according to claim 1, it is characterised in that: the gross area of the gross area of described balance pipe≤described input valve opening.
Valve body movable type controlled valve for industrial pipeline the most according to claim 1, it is characterised in that: inside and outside conical surface pressure ring and location pressure ring that the outer of described seal rubber sleeve A, seal rubber sleeve B and seal rubber sleeve C three is passed through respectively are fixed on described outer valve inside pipe wall；Described inside and outside conical surface pressure ring overlapping is clamped seal rubber sleeve outer and is allowed to be pressed on pressure ring termination, location.
Valve body movable type controlled valve for industrial pipeline the most according to claim 2, it is characterised in that: the inner conical surface pressure ring being positioned at outer valve pipe two ends sets screw thread.
Valve body movable type controlled valve for industrial pipeline the most according to claim 2, it is characterised in that: one end of described male cone (strobilus masculinus) pressure ring is provided with gum cover left-hand thread flange collar.
Valve body movable type controlled valve for industrial pipeline the most according to claim 1, it is characterised in that: described outer valve pipe is provided with locked hand.
7. according to the valve body movable type controlled valve for industrial pipeline described in any one of claim 1-6, it is characterized in that: described flange is threadeded with internal valve tube end, set stroke limit nut inside flange, between described stroke limit nut and flange, set sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610590145.0A CN105972238B (en) | 2016-07-24 | 2016-07-24 | A kind of valve body movable type controlled valve for industrial pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610590145.0A CN105972238B (en) | 2016-07-24 | 2016-07-24 | A kind of valve body movable type controlled valve for industrial pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105972238A true CN105972238A (en) | 2016-09-28 |
| CN105972238B CN105972238B (en) | 2018-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610590145.0A Active CN105972238B (en) | 2016-07-24 | 2016-07-24 | A kind of valve body movable type controlled valve for industrial pipeline |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612871A (en) * | 2018-05-15 | 2018-10-02 | 卢星霖 | The hydrophobic core pipe valve of negative pressure deslagging |
| CN110319220A (en) * | 2018-03-29 | 2019-10-11 | 卢星霖 | Dual-valve body blind pipe drives core pipe valve |
| CN110319338A (en) * | 2018-03-30 | 2019-10-11 | 卢星霖 | The hydrophobic core pipe valve of dual-valve body |
| CN110319257A (en) * | 2018-03-30 | 2019-10-11 | 卢星霖 | Dust explosion protection terminal security core pipe valve |
| CN110319203A (en) * | 2018-03-30 | 2019-10-11 | 卢星霖 | It relies on oneself filling core pipe valve |
| CN110319200A (en) * | 2018-03-30 | 2019-10-11 | 卢星霖 | Bivalve intracoelomic cavity drives core pipe valve |
| CN110319201A (en) * | 2018-03-30 | 2019-10-11 | 卢星霖 | Dual-valve body special type tank bottom core pipe valve |
| CN110319226A (en) * | 2018-03-30 | 2019-10-11 | 卢星霖 | Terminal core pipe valve |
| CN110319237A (en) * | 2018-03-30 | 2019-10-11 | 卢星霖 | Dual-valve body twin-core Multifunctional cross core pipe valve arranged side by side |
| CN110319210A (en) * | 2018-03-30 | 2019-10-11 | 卢星霖 | Dual-valve body deep water inner cavity is from power drive core pipe valve |
| CN110319253A (en) * | 2018-03-30 | 2019-10-11 | 卢星霖 | Extraordinary terminal core pipe valve |
| CN110319221A (en) * | 2018-03-30 | 2019-10-11 | 卢星霖 | Dual-valve body expansion driven core pipe valve |
| CN110319230A (en) * | 2018-03-30 | 2019-10-11 | 卢星霖 | Dual-valve body deep water primary and secondary core pipe valve |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB780945A (en) * | 1954-10-18 | 1957-08-14 | British Insulated Callenders | Improvements relating to sealing glands |
| CN201121727Y (en) * | 2007-11-22 | 2008-09-24 | 江苏宝胜电气股份有限公司 | Gas pumping and inflating bidirectional self-sealing valve |
| CN101696827A (en) * | 2009-11-04 | 2010-04-21 | 夏育红 | Emptying water drain valve for solar water heater and clutch thereof |
| CN101782156A (en) * | 2010-03-03 | 2010-07-21 | 夏育红 | Full water self-closing exhaust valve used for solar water heater |
| CN102095015A (en) * | 2010-12-09 | 2011-06-15 | 夏育红 | Emptying water drain valve of solar water heater and pneumatic clutch switch thereof |
| CN102102767A (en) * | 2009-12-17 | 2011-06-22 | 夏育红 | Directly operated type general electromagnetic valve |
| CN102913712A (en) * | 2012-10-30 | 2013-02-06 | 长城汽车股份有限公司 | Vibration-reducing and noise-reducing device of high-pressure oil pipe of vehicle steering system |
| CN103216638A (en) * | 2013-04-28 | 2013-07-24 | 夏育红 | Double-aperture and direct-acting type water faucet |
-
2016
- 2016-07-24 CN CN201610590145.0A patent/CN105972238B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB780945A (en) * | 1954-10-18 | 1957-08-14 | British Insulated Callenders | Improvements relating to sealing glands |
| CN201121727Y (en) * | 2007-11-22 | 2008-09-24 | 江苏宝胜电气股份有限公司 | Gas pumping and inflating bidirectional self-sealing valve |
| CN101696827A (en) * | 2009-11-04 | 2010-04-21 | 夏育红 | Emptying water drain valve for solar water heater and clutch thereof |
| CN102102767A (en) * | 2009-12-17 | 2011-06-22 | 夏育红 | Directly operated type general electromagnetic valve |
| CN101782156A (en) * | 2010-03-03 | 2010-07-21 | 夏育红 | Full water self-closing exhaust valve used for solar water heater |
| CN102095015A (en) * | 2010-12-09 | 2011-06-15 | 夏育红 | Emptying water drain valve of solar water heater and pneumatic clutch switch thereof |
| CN102913712A (en) * | 2012-10-30 | 2013-02-06 | 长城汽车股份有限公司 | Vibration-reducing and noise-reducing device of high-pressure oil pipe of vehicle steering system |
| CN103216638A (en) * | 2013-04-28 | 2013-07-24 | 夏育红 | Double-aperture and direct-acting type water faucet |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319220A (en) * | 2018-03-29 | 2019-10-11 | 卢星霖 | Dual-valve body blind pipe drives core pipe valve |
| CN110319201A (en) * | 2018-03-30 | 2019-10-11 | 卢星霖 | Dual-valve body special type tank bottom core pipe valve |
| CN110319338A (en) * | 2018-03-30 | 2019-10-11 | 卢星霖 | The hydrophobic core pipe valve of dual-valve body |
| CN110319257A (en) * | 2018-03-30 | 2019-10-11 | 卢星霖 | Dust explosion protection terminal security core pipe valve |
| CN110319203A (en) * | 2018-03-30 | 2019-10-11 | 卢星霖 | It relies on oneself filling core pipe valve |
| CN110319200A (en) * | 2018-03-30 | 2019-10-11 | 卢星霖 | Bivalve intracoelomic cavity drives core pipe valve |
| CN110319226A (en) * | 2018-03-30 | 2019-10-11 | 卢星霖 | Terminal core pipe valve |
| CN110319237A (en) * | 2018-03-30 | 2019-10-11 | 卢星霖 | Dual-valve body twin-core Multifunctional cross core pipe valve arranged side by side |
| CN110319210A (en) * | 2018-03-30 | 2019-10-11 | 卢星霖 | Dual-valve body deep water inner cavity is from power drive core pipe valve |
| CN110319253A (en) * | 2018-03-30 | 2019-10-11 | 卢星霖 | Extraordinary terminal core pipe valve |
| CN110319221A (en) * | 2018-03-30 | 2019-10-11 | 卢星霖 | Dual-valve body expansion driven core pipe valve |
| CN110319230A (en) * | 2018-03-30 | 2019-10-11 | 卢星霖 | Dual-valve body deep water primary and secondary core pipe valve |
| CN108612871A (en) * | 2018-05-15 | 2018-10-02 | 卢星霖 | The hydrophobic core pipe valve of negative pressure deslagging |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105972238B (en) | 2018-04-27 |
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