CN101059176A - Nesting type forging steel ball valve - Google Patents
Nesting type forging steel ball valve Download PDFInfo
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- CN101059176A CN101059176A CN 200710068828 CN200710068828A CN101059176A CN 101059176 A CN101059176 A CN 101059176A CN 200710068828 CN200710068828 CN 200710068828 CN 200710068828 A CN200710068828 A CN 200710068828A CN 101059176 A CN101059176 A CN 101059176A
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- valve
- spool
- valve body
- ball valve
- ball
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Abstract
The present invention involves a nested ball valve which includes valve body, valve seat, ball body, valve cap, valve bar, transmission device, seal elements and install elements. It mainly is characterized by: the centre of the integrated valve body is processed a spool hole which is equipped and fixed with a spool, the spool is seal-installed in the spool hole of valve body by valve cover, the spool is equipped with valve seat which is seal-matched with ball body. The ball valve avoids the leakage point of flange connecting valve body in prior technology; the ball valve need not be dismounted when maintenance and the pipeline can operate normally, it has the advantages of good sealing performance, convenient maintenance, materials-saving, reducing power and low cost, it applies to the condition in high temperature and high pressure media pipeline in electric force, petrochemical and other fields.
Description
Technical field
The present invention relates to a kind of valve, particularly about a kind of ball valve.
Background technique
Ball valve is because of 90 ° of keyings, full tunnel circulation during unlatching, have easy to operate, advantage such as flow resistance is little, and the open-shut device on the medium operating mode pipelines such as the high temperature of industries such as extensive use and oil, chemical industry, electric power, metallurgy, high pressure.Press the sealing configuration branch, two kinds of sealing configuration forms of hard seal ball valve and soft sealing ball valve are arranged; Press the manufacturing process branch of valve body, by casting ball valve and forging ball valve.The valve body of casting ball valve can be structure as a whole, but its load performance is relatively poor, so be used for the ball valve in high pressure field such as power generation, the forging steel ball valve that requires the valve body of ball valve to adopt Forging Technology to make.Because Forging Technology, valve body must be made multi-sheet structure and combine, so forging steel ball valve is divided into three pieces type ball valve, two-piece type ball valve and three kinds of structural types of all-welded ball valve again by the structural type of its valve body.All-welded ball valve is complicated because of welding procedure, and domestic production producer is less at present, and quality of product is also unstable, thus more be to adopt three pieces type ball valve, two-piece type ball valve.As patent publication No. is the structure improved three pieces type ball valve of CN2145294, mainly form by valve body, spheroid, valve seat, valve rod and driving mechanism, its valve body adopts left valve barrel, right valve barrel, ball valve body to combine, and is connected by flange respectively between ball valve body and left valve barrel and the right valve barrel.And for example patent publication No. is the High Temperature High Pressure ultrahigh hardness metal seal ball valve of CN2735103, and its structure comprises valve body, spheroid, valve seat, valve rod and driving mechanism, and valve body is connected to form by flange by left valve barrel and right valve barrel.One of shortcoming of these two kinds of structure ball valves is that valve body is combined by the flange connection, and there is leakage point in its joint, and after the use long period, the joint leaks outside easily, and it is unreliable to seal; Two of shortcoming is between spheroid and the valve seat after the wearing and tearing when needing repairing, and unload putting in order the deck valve door, and after bypass duct is installed, and system could proper functioning, and maintenance is inconvenient; Three of shortcoming is that valve body integral body all will adopt the forged steel material, and material is wasteful, the cost height.
Goal of the invention
One of purpose of the present invention is the shortcoming that exists at prior art, provides a kind of valve body to be structure as a whole, valve body nesting type forging steel ball valve no leakage point, good seal performance itself;
Two of purpose of the present invention is the shortcomings that exist at prior art, provides a kind of valve body to be structure as a whole, and when valve internal maintenance or replacing parts, does not need to pull down valve body, nesting type forging steel ball valve easy to maintenance;
Three of purpose of the present invention is the shortcomings that exist at prior art, and a kind of materials saving, nesting type forging steel ball valve that cost is low are provided.
The technological scheme that realizes the object of the invention comprises valve body, valve seat, spheroid, valve gap, valve rod, driving mechanism and Sealing and assembling set, mainly be in the middle of the valve body of integrative-structure, to make a spool bore, the spool bore internal fixation is installed a spool, this spool is installed on by valve bonnet seal in the spool bore of valve body, is provided with the valve seat that is sealed and matched mutually with spheroid in the spool.
In above technological scheme, the flange of an installation final controlling element is fixed in the valve gap upper end.
In above technological scheme, the spheroid upper and lower end is shaped on rotating shaft, is respectively equipped with bearing between its rotating shaft and the spool.
In above technological scheme, spool is a conical structure, is flush-mounted in the round taper hole of valve body.
One of the present invention's advantage compared with prior art is: valve body is structure as a whole, and has avoided the valve body of prior art to connect the leakage point that combines existence, good seal performance by flange;
Two of the present invention's advantage compared with prior art is: valve body is structure as a whole, and the spheroid of valve internal or valve seat need repairing or when changing, do not need to pull down valve body, only need open valve gap, take out spool, install valve gap then again, pipe-line system can be recovered proper functioning, and is easy to maintenance;
Three of the present invention's advantage compared with prior art is: at the embedded cartridge spool of the valve body of integrative-structure, consumptive material was less when the spool forged steel pieces was carried out fine finishing, and valve body can also select the general material different with spool for use, and materials consumption is few, cost is low.
Description of drawings
Fig. 1 is a structure sectional view of the present invention.
Embodiment
Nesting type forging steel ball valve as shown in Figure 1 comprises valve body 1, valve seat 6, spheroid 10, valve gap 21, valve rod 20, driving mechanism and Sealing and assembling set.Make a spool bore in the middle of the valve body 1 of integrative-structure, the spool bore internal fixation is installed a spool 11, and this spool 11 is a conical structure, is flush-mounted in the round taper hole of valve body 1, and is seal-installed on by valve gap 21 in the spool bore of valve body 1.Spool 11 adopts forged steel pieces to form by the fine finishing manufacturing, and valve body 1 can adopt forged steel pieces, also can adopt foundry goods to process.Be provided with valve seat 6 in the spool 11, this valve seat 6 is provided with the valve seat insert 8 that cooperatively interacts with spheroid 10 sealing surfaces, and valve seat insert 8 can be the hard sealing structure of being made by metallic material, also can adopt the soft sealing structure of being made by rubber material.Be provided with the floating installation of forming by spring 3 and spring seat 4 between valve seat 6 and the spool 11.Between spring seat 4 and valve seat 6, be provided with carbon seal ring 5, realize the sealing between valve seat 6 and the spool 11.Be provided with fixing pin 7 between spool 11 and the valve body 1, prevent that spool 11 from rotating in the spool bore of valve body 1, and the passway of between is respectively equipped with seal ring 2 up and down, the sealing between realization spool 11 and the valve body 1.Install by several double-screw bolts 14 and nut 13 between valve gap 21 and the valve body 1, be provided with seal washer 12 between the two.Spheroid 10 upper and lower end are shaped on rotating shaft respectively, are respectively equipped with bearing 9 between its rotating shaft and the spool 11, reduce spin friction power between rotating shaft and the spool 11.Spheroid 10 upper end rotating shafts are fixedlyed connected with valve rod 20.Valve gap 21 upper ends connect a flange, and the mounting flange of this flange and final controlling element interconnects, and the output Control Shaft of final controlling element is fixedlyed connected with valve rod 20, but this linkage structure valve rod 20 is upwards got by the pressure in the valve pocket.Between the interior step of the outer convex shoulder of valve rod 20 and valve gap 21, be provided with seal arrangement 15, realize the sealing between valve rod 20 and the valve gap 21.Simultaneously between valve rod 20 peripheries and valve gap 21, be provided with stuffing box packing 16, sealing filler 16 compresses sealing by Gland 17 by the nut on the valve rod 20 18, and between nut 18 and Gland 17, establish butterfly spring 19, prevent that nut 18 is loosening under the vibration situation.
Claims (5)
1, a kind of nesting type forging steel ball valve, comprise valve body (1), valve seat (6), spheroid (10), valve gap (21), valve rod (20), driving mechanism and Sealing and assembling set, it is characterized in that making a spool bore in the middle of the valve body (1) at integrative-structure, the spool bore internal fixation is installed a spool (11), this spool (11) is seal-installed in the spool bore of valve body (1) by valve gap (21), is provided with the valve seat (6) that is sealed and matched mutually with spheroid (10) in the spool (11).
2, nesting type forging steel ball valve according to claim 1 is characterized in that valve gap (21) upper end fixes a flange that final controlling element is installed.
3, nesting type forging steel ball valve according to claim 1 and 2 is characterized in that spheroid (1) upper and lower end is shaped on rotating shaft, is respectively equipped with bearing (9) between its rotating shaft and the spool (11).
4, nesting type forging steel ball valve according to claim 1 and 2 is characterized in that spool (11) is a conical structure, is flush-mounted in the round taper hole of valve body (1).
5, nesting type forging steel ball valve according to claim 3 is characterized in that spool (11) is a conical structure, is flush-mounted in the round taper hole of valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710068828 CN101059176A (en) | 2007-05-17 | 2007-05-17 | Nesting type forging steel ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710068828 CN101059176A (en) | 2007-05-17 | 2007-05-17 | Nesting type forging steel ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101059176A true CN101059176A (en) | 2007-10-24 |
Family
ID=38865425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710068828 Pending CN101059176A (en) | 2007-05-17 | 2007-05-17 | Nesting type forging steel ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101059176A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644407A (en) * | 2018-07-26 | 2018-10-12 | 苏州谊佳润机电制造有限公司 | A kind of good fixed forging steel ball valve valve seat of elastic effect |
-
2007
- 2007-05-17 CN CN 200710068828 patent/CN101059176A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644407A (en) * | 2018-07-26 | 2018-10-12 | 苏州谊佳润机电制造有限公司 | A kind of good fixed forging steel ball valve valve seat of elastic effect |
| CN108644407B (en) * | 2018-07-26 | 2023-11-14 | 浙江鸿新阀门有限公司 | Fixed forged steel ball valve seat with good elastic effect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20071024 |