CN202746646U - Double-thrust gasket ball valve - Google Patents
Double-thrust gasket ball valve Download PDFInfo
- Publication number
- CN202746646U CN202746646U CN 201220394690 CN201220394690U CN202746646U CN 202746646 U CN202746646 U CN 202746646U CN 201220394690 CN201220394690 CN 201220394690 CN 201220394690 U CN201220394690 U CN 201220394690U CN 202746646 U CN202746646 U CN 202746646U
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- valve
- ball
- valve body
- thrust washer
- ball valve
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- Expired - Fee Related
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Abstract
The utility model discloses a double-thrust gasket ball valve which comprises a main valve body and a secondary valve body connected with the main valve body, wherein an inlet valve seat and an outlet valve seat are arranged in a cavity defined by the main valve body and the secondary valve body; a ball core is arranged and moves between the inlet valve seat and the outlet valve seat; a valve rod is connected to the upper part of the ball core; and two thrust gaskets are arranged on the valve rod. According to the double-thrust gasket ball valve disclosed by the utility model, the range of the operating temperature of the ball valve is widened, the wear of the ball valve is reduced and the reliability of the ball valve is effectively improved.
Description
Technical field
The utility model relates to ball valve, particularly a kind of pair of thrust washer ball valve.
Background technique
The compact structure of ball valve own, sealing is reliable, simple in structure, easy to maintenance, sealing surface and the sphere closed state of being everlasting, be difficult for by the medium erosion, easy operating and maintenance are applicable to the general work media such as water, solvent, acid and rock gas, but also are applicable to the abominable medium of operating conditions, such as oxygen, hydrogen peroxide, methane and ethene etc., be widely used in every profession and trade.But, mainly there is following problem in the ball valve of prior art: one, existing bigbore ball valve is to play thrust function by single nonmetallic gasket mostly, reduced greatly the scope of the ball valve serviceability temperature of this kind mode work, the working life of also having reduced ball valve simultaneously.Even two, existing ball valve uses metallic shim, owing to can not solve friction problem, the reliability of ball valve is still very low.
The model utility content
The technical problems to be solved in the utility model is little in order to overcome prior art serviceability temperature scope, and the defective of wearing and tearing provides a kind of pair of thrust washer ball valve easily.
The utility model solves above-mentioned technical problem by following technical proposals:
A kind of pair of thrust washer ball valve, comprise a main valve body and is connected the auxiliary valve body that is connected with described main valve body, be provided with an entrance valve seat and an outlet valve seat in the chamber that described main valve body and described auxiliary valve body surround, one ball core is arranged at described entrance valve seat and described outlet valve base chamber and rotates therein, described ball core top is connected with a valve rod, its characteristics are, are provided with two thrust washers on the described valve rod.
Better, described pair of thrust washer ball valve also comprises a support riser, described support riser lower end is connected on the described main valve body and described support riser upper end is connected with a flange bracket, and described flange bracket is enclosed within on the described valve rod and by a stem guiding bearing and is connected with described valve rod.Such Placement is convenient to dismounting, and is elegant in appearance.
Better, described thrust washer is metal material, has improved greatly the scope of ball valve serviceability temperature.
Better, the surface roughness of the surface of contact of described thrust washer is less than or equal to 0.4.The surface of contact that so just can guarantee two thrust washers has increased the hardness of surface of contact when being relative movement, greatly improved the reliability of valve and reduced wear extent herein.
Positive progressive effect of the present utility model is: by utilization of the present utility model, improved the serviceability temperature scope of ball valve, reduced the wearing and tearing of ball valve, Effective Raise the reliability of ball valve.
Description of drawings
Fig. 1 is the ball-valve structure schematic representation of the utility model preferred embodiment.
Fig. 2 is the ball valve partial structurtes enlarged diagram of the utility model preferred embodiment.
Embodiment
Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.
As shown in the figure, the two thrust washer ball valves of the utility model comprise main valve body 1, auxiliary valve body 2, valve body connecting bolt 3, valve seal pad 5, outlet valve seat 4, entrance valve seat 6, ball core 7, outlet valve seat retainer ring 8, screw 9, seat load spring 10, valve rod thrust washer 11, filler assembly 12, filler pressing sleeve 13, support riser 14, flange bracket 15, valve rod 16, flat key 17, stem guiding bearing 18, filler hold-down bolt 19, filler gland nut 20, filler spring loaded 21, main valve body 1 is fixing with auxiliary valve body 2 by valve body connecting bolt 3, valve seal pad 5 is between main valve body 1 and auxiliary valve body 2, ball core 7 is located at main valve body 1, in the auxiliary valve body 2, seat load spring 10 is between entrance valve seat 6 and main valve body 1, outlet valve seat retainer ring 8 is fastened on the auxiliary valve body 2 with stationary exit valve seat 4 by screw 9, filler assembly 12 is pressed in the main valve body 1 by filler pressing sleeve 13, stem guiding bearing 18, flange bracket 15, filler pressing sleeve 13 is enclosed within on the valve rod 16, filler pressing sleeve 13 is by filler hold-down bolt 19, filler spring loaded 21 connects and compresses, support riser 14 is supporting main valve body 1 and flange bracket 15, valve rod thrust washer 11 is enclosed within the effect of playing a thrust valve rod 16 on the valve rod 16, and flat key 17 is on valve rod 16.
Valve rod thrust washer 11 is enclosed within the effect of playing a thrust valve rod 16 on the valve rod 16, because valve rod thrust washer 11 employed materials are metallic material, so improved the scope of big-diameter ball valve serviceability temperature; When valve rod 16 in the process of rotating since two valve rod thrust washers, 11 surface of contact through spraying, grind and make the higher extra coarse degree of its hardness utmost point less, so cause that thereby relative movement has greatly improved the reliability of valve and reduced wear extent herein between two valve rod thrust washers 11; Seat load spring 10 is put in the main valve body 1, provides sealing force to guarantee always close contact of ball core 7 and entrance valve seat 6; Ball core 7 and outlet valve seat 4 and entrance valve seat 6 sealing surfaces are highly polished, good seal performance, and frictional force is low; Outlet valve seat 4 is fixing by outlet valve seat retainer ring 8, has reduced the wearing and tearing of outlet valve seat 4 with auxiliary valve body 2 sealing surfaces, improves working life; Outlet valve seat 4 is back metal sealings with auxiliary valve body 2, and the pressure of fluid is larger in the pipeline, and ball core 7 is larger with the sealing force of valve seat 6, and it is tighter that outlet valve seat 4 contacts with auxiliary valve body 2, and sealability is just better; Main valve body 1 is realized sealing with auxiliary valve body 2 by valve seal pad 5; Filler 12 adopts wire and graphite to be used, and the filler that wire adds graphite is put into two ends, in the middle of the filler of pure graphite is put into, guarantees the sealing of valve rod, has also prevented pure graphite damage simultaneously; Filler pressing sleeve 13 is pressed in above the filler 12; Filler pressing sleeve 13 relies on filler hold-down bolts 19 and filler spring loaded 21 to compress, and filler spring loaded 21 can compensate filler gland nut 20 gap when loosening, guarantees the sealing of filler; Support riser 14 supports main valve body 1 and flange bracket 15, is convenient to dismounting, and is elegant in appearance.Stem guiding bearing 18 is contained on the flange bracket 15, and stem guiding bearing 18 is very little with the gap of valve rod 16, guarantees valve rod 16 positional accuracys, can bear larger radial force simultaneously, has avoided valve rod 16 that scratch occurs.
Valve rod thrust washer 11 employed materials are metallic material, general multiselect with 316 or Incoloy800H etc. some are high temperature resistant, high pressure resistant, the metallic material of anti-strong acid, original heavy caliber thrust washer generally is to use nonmetallic material, although the possible anti-strong acid of this kind material, but its fatal shortcoming is exactly can not be high temperature resistant and high pressure resistant, in case corresponding change may just occur even might the part change also occur profile in the original intrinsic property of this kind material when operating temperature and pressure rising, this just greatly reduces the effect that valve will reach, and just there has not been this kind problem in double stub shaft thrust washer 11.Two thrust washer 11 is front does corresponding spraying treatmen to two metal thrust washer surface of contact installing, grinding after the spraying treatmen reaches about 0.4 its surperficial extra coarse degree, the hardness that has so just increased surface of contact can guarantee that also the surface of contact of the valve rod thrust washer 11 of two metal materials is relative movement simultaneously, has greatly improved the reliability of valve and has reduced wear extent herein.
Although more than described embodiment of the present utility model, it will be understood by those of skill in the art that these only illustrate, protection domain of the present utility model is limited by appended claims.Those skilled in the art can make various changes or modifications to these mode of executions under the prerequisite that does not deviate from principle of the present utility model and essence, but these changes and modification all fall into protection domain of the present utility model.
Claims (4)
1. two thrust washer ball valve, comprise a main valve body and is connected the auxiliary valve body that is connected with described main valve body, be provided with an entrance valve seat and an outlet valve seat in the chamber that described main valve body and described auxiliary valve body surround, one ball core is arranged at described entrance valve seat and described outlet valve base chamber and rotates therein, described ball core top is connected with a valve rod, it is characterized in that, be provided with two thrust washers on the described valve rod.
2. as claimed in claim 1 pair of thrust washer ball valve, it is characterized in that, described pair of thrust washer ball valve also comprises a support riser, described support riser lower end is connected on the described main valve body and described support riser upper end is connected with a flange bracket, and described flange bracket is enclosed within on the described valve rod and by a stem guiding bearing and is connected with described valve rod.
3. as claimed in claim 1 pair of thrust washer ball valve is characterized in that, described thrust washer is metal material.
4. such as described pair of thrust washer ball valve of claim 1-3 any one, it is characterized in that the surface roughness of the surface of contact of described thrust washer is less than or equal to 0.4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220394690 CN202746646U (en) | 2012-08-09 | 2012-08-09 | Double-thrust gasket ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220394690 CN202746646U (en) | 2012-08-09 | 2012-08-09 | Double-thrust gasket ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202746646U true CN202746646U (en) | 2013-02-20 |
Family
ID=47706045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220394690 Expired - Fee Related CN202746646U (en) | 2012-08-09 | 2012-08-09 | Double-thrust gasket ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202746646U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879520A (en) * | 2015-06-03 | 2015-09-02 | 航天长征化学工程股份有限公司 | Floating ball valve |
-
2012
- 2012-08-09 CN CN 201220394690 patent/CN202746646U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879520A (en) * | 2015-06-03 | 2015-09-02 | 航天长征化学工程股份有限公司 | Floating ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201323 Shanghai city Pudong New Area Zhuqiao gold Lianglu No. 32 Building 2 Patentee after: More research (Shanghai) valve industry Co. Ltd. Address before: 201323 Shanghai city Pudong New Area Zhuqiao gold Lianglu No. 32 Building 2 Patentee before: Copeland (Shanghai) Valve Industry Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20180809 |