CN103216633A - Small-caliber gate valve - Google Patents
Small-caliber gate valve Download PDFInfo
- Publication number
- CN103216633A CN103216633A CN201310112388XA CN201310112388A CN103216633A CN 103216633 A CN103216633 A CN 103216633A CN 201310112388X A CN201310112388X A CN 201310112388XA CN 201310112388 A CN201310112388 A CN 201310112388A CN 103216633 A CN103216633 A CN 103216633A
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- Prior art keywords
- valve
- medium flow
- gate valve
- flashboard
- valve body
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Abstract
The invention provides a small-caliber gate valve comprising a valve body, a valve cover, a flashboard, a gate valve cavity, an upper valve seat and a lower valve seat, wherein the valve cover is arranged above the valve body, the flashboard moves in the valve body up and down, the gate valve cavity is used for accommodating the flashboard, a medium flow-in channel and a medium flow-out channel are arranged in the valve body, the medium flow-in channel and the medium flow-out channel are arranged in an inclining manner, the upper end of the flashboard and the upper valve seat form an upper seal surface, and the lower end of the flashboard and the lower valve seat form a lower seal surface. According to the small-caliber gate valve disclosed by the invention, a channel hole of the gate valve has an inclined angle of 3 degrees, the seal surfaces of the gate valve are machined by utilizing a special machine tool, the machining is simple, and the body seal is carried out on the seal surfaces of the gate valve so that the sealing performance is greatly improved.
Description
Technical field
The present invention relates to valve field, relate in particular to a kind of small-bore gate valve.
Background technique
Hard seal gate valve has advantages such as flow resistance is little, heatproof is high, open and close torque is little, is widely used at present in the system such as tap water.At present, existing gate valve has generally comprised valve body, valve rod, flashboard, wherein, valve body includes the valve body body, the valve body body is provided with medium flow channel, medium flow pass, valve pocket, described valve pocket and medium flow channel, the equal conducting of medium flow pass, described medium flow channel, the equal along continuous straight runs setting of medium flow pass.Be generally less than 1 " gate valve be forging; sealing surface is edge circle; the error when the two cooperates might produce leakage; because port hole is little; processing sealing surface difficulty, is difficult to reach sealing fully, causes many medium temperatures high and require the little occasion of system's flow resistance; select big stop valve of relative flow resistance or the low ball valve of heatproof relatively for use because of gate valve can't reach zero leakage, causes system can't reach optimum performance or increases system cost.Moreover, the gate valve body of this structure, because described medium flow channel, the equal along continuous straight runs setting of medium flow pass, therefore, do not use at gate valve, have the part medium and be trapped in medium flow channel, the medium flow pass, when different medium is controlled, can cause the pollution of medium.
Therefore, be necessary prior art is done further improvement.
Summary of the invention
The object of the present invention is to provide a kind of small-bore gate valve of easy processing valve body sealing surface.
For reaching aforementioned purpose, a kind of small-bore gate valve of the present invention, the flashboard, the gate valve chamber that holds described flashboard and upper valve base and the lower valve base that comprise valve body, be arranged in the valve gap of described valve body top, move up and down at described valve body, be provided with medium flow channel and medium flow pass in the described valve body, described medium flow channel of its kind and medium flow pass all are obliquely installed, described flashboard upper end forms sealing surface with upper valve base, and described flashboard lower end and lower valve base form lower sealing surface.
According to one embodiment of present invention, the slanted angle of described medium flow channel and medium flow pass and substantially horizontal is 3 °.
According to one embodiment of present invention, described flashboard is from the outward-dipping predetermined angle of the supreme sealing surface of lower sealing surface.
Beneficial effect of the present invention: gate valve port hole of the present invention has 3 ° of angles of inclination, by the lathe of special use the sealing surface of gate valve is processed, and processing is simple, by sealing surface of the discharge gate being carried out the body sealing, makes sealability improve greatly.
Description of drawings
Fig. 1 is the structural representation of the small-bore gate valve of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further detailed description.
See also Fig. 1, it is for the structural representation of the small-bore gate valve of the present invention.As shown in Figure 1, it comprises handwheel 1, valve rod 2, valve body 3, be arranged in the valve gap 4 of valve body 3 tops, the flashboard 5 in that valve body 3 moves up and down by valve rod 2, the gate valve chamber 6 that holds flashboard 5 and on valve 71 and lower valve base 72, be provided with medium flow channel 81 and medium flow pass 82 in the valve body 3, flashboard 5 upper ends and upper valve base 71 form goes up sealing surface 91, flashboard 5 lower ends and lower valve base 72 form lower sealing surface 92, and flashboard 5 is from lower sealing surface 92 supreme sealing surface 91 outward-dipping predetermined angles.Wherein, medium flow channel 81 and medium flow pass 82 all are obliquely installed, and it is 3 ° with the slanted angle A of substantially horizontal respectively.
Among this embodiment, the angle that medium flow channel 81 and medium flow pass 82 tilt matches with the lathe bed angle that sealing surface of the discharge gate is processed professional lathe, be fixed on the worktable of lathe when gate valve body 3 after, the lathe knife bar can be along the processing that 3 ° of media of valve body flow into and flow pass enters valve body sealing surface.
Among this embodiment, the valve body medium flows into and flow pass angle of inclination A is 3 °, and the bore of corresponding gate valve is 1/2 " 1 ".In other embodiments, the angle of inclination in its required valve channel hole of the processing of the valve body sealing surface of different bores can be decided according to actual conditions.
Above-mentioned explanation has fully disclosed the specific embodiment of the present invention.It is pointed out that and be familiar with the scope that any change that the person skilled in art does the specific embodiment of the present invention does not all break away from claims of the present invention.Correspondingly, the scope of claim of the present invention also is not limited only to previous embodiment.
Claims (3)
1. small-bore gate valve, the flashboard, the gate valve chamber that holds described flashboard and upper valve base and the lower valve base that comprise valve body, be arranged in the valve gap of described valve body top, move up and down at described valve body, be provided with medium flow channel and medium flow pass in the described valve body, it is characterized in that: described medium flow channel and medium flow pass all are obliquely installed, described flashboard upper end forms sealing surface with upper valve base, and described flashboard lower end and lower valve base form lower sealing surface.
2. small-bore gate valve according to claim 1 is characterized in that: the slanted angle of described medium flow channel and medium flow pass and substantially horizontal is 3 °.
3. small-bore gate valve according to claim 1 is characterized in that: described flashboard is from the outward-dipping predetermined angle of the supreme sealing surface of lower sealing surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310112388XA CN103216633A (en) | 2013-04-01 | 2013-04-01 | Small-caliber gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310112388XA CN103216633A (en) | 2013-04-01 | 2013-04-01 | Small-caliber gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103216633A true CN103216633A (en) | 2013-07-24 |
Family
ID=48814683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310112388XA Pending CN103216633A (en) | 2013-04-01 | 2013-04-01 | Small-caliber gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103216633A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461509A (en) * | 2017-10-09 | 2017-12-12 | 铜陵天海流体控制股份有限公司 | A kind of high reliability elastic soft sealing gate valve |
| CN109307083A (en) * | 2018-09-26 | 2019-02-05 | 河北博路天宝石油设备制造有限公司 | A kind of oil equipment multi-functional valve |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4294427A (en) * | 1979-07-19 | 1981-10-13 | Cilny Eugene J | Mono-seat gate valve |
| US4625942A (en) * | 1982-01-27 | 1986-12-02 | Nl Industries, Inc. | Valve assembly, seat and seal |
| CN201170339Y (en) * | 2008-01-25 | 2008-12-24 | 上海上州阀门制造有限公司 | No leakage gate valve |
| CN101413590A (en) * | 2008-09-10 | 2009-04-22 | 华东阀门有限公司 | Supporting type double-seal double-gate plate flat plate gate valve |
| CN201284837Y (en) * | 2008-08-21 | 2009-08-05 | 浙江三维阀门有限公司 | Sluice valve |
| CN101886705A (en) * | 2010-06-25 | 2010-11-17 | 浙江欧斯特泵阀有限公司 | Wear-resistant parallel double-flashboard gate valve |
| CN201787102U (en) * | 2010-08-13 | 2011-04-06 | 上海飞球阀门有限公司 | Special valve for high-temperature blowing of catalytic device |
| CN202561199U (en) * | 2012-05-22 | 2012-11-28 | 百强阀门集团有限公司 | Automatic-cleaning sluice valve |
| CN203223577U (en) * | 2013-04-01 | 2013-10-02 | 无锡富盛阀业有限公司 | Small-aperture gate valve |
-
2013
- 2013-04-01 CN CN201310112388XA patent/CN103216633A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4294427A (en) * | 1979-07-19 | 1981-10-13 | Cilny Eugene J | Mono-seat gate valve |
| US4625942A (en) * | 1982-01-27 | 1986-12-02 | Nl Industries, Inc. | Valve assembly, seat and seal |
| CN201170339Y (en) * | 2008-01-25 | 2008-12-24 | 上海上州阀门制造有限公司 | No leakage gate valve |
| CN201284837Y (en) * | 2008-08-21 | 2009-08-05 | 浙江三维阀门有限公司 | Sluice valve |
| CN101413590A (en) * | 2008-09-10 | 2009-04-22 | 华东阀门有限公司 | Supporting type double-seal double-gate plate flat plate gate valve |
| CN101886705A (en) * | 2010-06-25 | 2010-11-17 | 浙江欧斯特泵阀有限公司 | Wear-resistant parallel double-flashboard gate valve |
| CN201787102U (en) * | 2010-08-13 | 2011-04-06 | 上海飞球阀门有限公司 | Special valve for high-temperature blowing of catalytic device |
| CN202561199U (en) * | 2012-05-22 | 2012-11-28 | 百强阀门集团有限公司 | Automatic-cleaning sluice valve |
| CN203223577U (en) * | 2013-04-01 | 2013-10-02 | 无锡富盛阀业有限公司 | Small-aperture gate valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461509A (en) * | 2017-10-09 | 2017-12-12 | 铜陵天海流体控制股份有限公司 | A kind of high reliability elastic soft sealing gate valve |
| CN109307083A (en) * | 2018-09-26 | 2019-02-05 | 河北博路天宝石油设备制造有限公司 | A kind of oil equipment multi-functional valve |
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Application publication date: 20130724 |