CN101620046A - Water press pilot-operated vent valve - Google Patents
Water press pilot-operated vent valve Download PDFInfo
- Publication number
- CN101620046A CN101620046A CN200910012614A CN200910012614A CN101620046A CN 101620046 A CN101620046 A CN 101620046A CN 200910012614 A CN200910012614 A CN 200910012614A CN 200910012614 A CN200910012614 A CN 200910012614A CN 101620046 A CN101620046 A CN 101620046A
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- valve body
- left end
- valve
- hand member
- block
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Abstract
The invention relates to the technical field of steel pipe hydrostatic testers, in particular to a water press pilot-operated vent valve, which is characterized by comprising a valve body with a cavity; wherein, an oil hole and an air inlet are arranged on the valve body, and the air inlet is connected with an injection pipeline; an air outlet which is connected with a drainage pipeline is arranged below the valve body; the left end of the valve body is connected with a hydraulic cylinder; a hydraulic rod is provided with sealing rings near the oil hole; the middle part of the cavity of the valve body is provided with a baffleplate with an inner hole; the inner hole arranged on the right end head of the baffleplate is in raised arc shape; the right end of the baffleplate is inarched with a spacer bush the right end of which is inarched with a valve cover; the valve cover is fixedly connected with the right end of the valve body; the left end of the valve cover is provided with a boss; sealing is arranged between the boss and the valve body; one end of a spring is fixedly connected with the left end of the valve body, the other end thereof is fixedly connected with the right end of a valve core provided with a ledge; and the left end of the valve core is inserted into the inner hole of the baffleplate. The invention can rapidly open the valve core to realize rapid decompression under the condition of high pressure.
Description
Technical field
The present invention relates to Pipe Hydrostatic Test machine technology field, particularly a kind of water press pilot-operated vent valve.
Background technology
Be up to 20.5MPa according to the API 5L of American Petroleum Institute (API) standard-required Pipe Hydrostatic Test pressure, this just needs vent valve high pressure resistant.Because the maximum caliber of spiral submerged arc welded steel pipe reaches 2540mm, length 12m, the injecting process of steel pipe is the key of restriction production efficiency during hydrostatic test, so in order to shorten water injection time, increase the quantity of waterflood pump on the one hand, strengthen the diameter of gas exhaust duct on the other hand, the turnover tracheae also corresponding increasing in footpath of vent valve.In addition, in the high pressure water system of hydrostatic testing machine, after the high-pressure pump supercharging, the pressurize of standard-required steel pipe needs quick decompress(ion) after 12 seconds, also requires to install in pipeline decompress(ion) valve high pressure resistant, quick decompress(ion), is used to prevent that steel pipe is subjected to the high pressure overlong time to cause distortion.
Summary of the invention
The water press pilot-operated vent valve that the purpose of this invention is to provide a kind of high pressure resistant, quick decompress(ion).
The objective of the invention is to realize in the following manner:
A kind of water press pilot-operated vent valve of the present invention, it is characterized in that comprising the valve body that is provided with cavity, this left end above valve body is provided with oil hole, this right-hand member above valve body is provided with air intake opening, this air intake opening is connected with the filling pipe of hydrostatic testing machine by the air intake opening seal flange, be provided with the gas outlet below the described valve body, this gas outlet is connected with drainage pipeline by the gas outlet seal flange, the left end of described valve body is connected with hydraulic cylinder by joint flange, the hydraulic stem of this hydraulic cylinder inserts the left end of described valve body, this hydraulic stem is being provided with O-ring seal respectively near described oil hole place, the cavity middle part of described valve body is provided with the block of band endoporus, the endoporus of this block right-hand member head is convex, be provided with O-ring seal between this block and the described valve body, the right-hand member of this block is abutted against mutually with spacer, the right-hand member of described spacer is abutted against mutually with valve gap, this valve gap fixes with the right-hand member of described valve body by bolt and is connected, the left end of this valve gap is provided with boss, be provided with sealing between this boss and the valve body, the left end of the valve body connection that fixes therewith of one end of spring, the other end of this spring fixes with the right-hand member of the spool that is provided with shoulder and is connected, and the left end of this spool inserts the endoporus of described block.
Characteristics of the present invention are:
1, water press pilot-operated vent valve of the present invention is connected with hydraulic cylinder, can open spool fast under high-pressure situations, realizes quick decompress(ion);
2, be provided with block in valve pocket, the endoporus of this block right-hand member head is convex, when contacting with spool, is seen as a contact from axial section, is seen as the line contact from circumference.The sealing effectiveness that the special contact form of this kind forms is very good, need not to have reduced maintenance capacity with the O-ring seal sealing;
3, the present invention can be used in exhaust and two stations of decompress(ion) of hydrostatic testing machine simultaneously;
4, water press pilot-operated vent valve import and export diameter of the present invention is big, and air capacity is big, shortens the water pressure engine water injection time.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Below in conjunction with description of drawings the specific embodiment of the present invention.
As shown in Figure 1, a kind of water press pilot-operated vent valve of the present invention, it is characterized in that comprising the valve body 5 that is provided with cavity, this left end above valve body 5 is provided with oil hole 4, this right-hand member above valve body 5 is provided with air intake opening 8, this air intake opening 8 is connected with the filling pipe of hydrostatic testing machine by the air intake opening seal flange, be provided with gas outlet 15 below the described valve body 5, this gas outlet 15 is connected with drainage pipeline by the gas outlet seal flange, the left end of described valve body 5 is connected with hydraulic cylinder 1 by joint flange 2, the hydraulic stem 3 of this hydraulic cylinder 1 inserts the left end of described valve body 5, this hydraulic stem 3 is being provided with O-ring seal 16 respectively near described oil hole 4 places, 17, the cavity middle part of described valve body 5 is provided with the block 6 of band endoporus, the endoporus of these block 6 right-hand member heads is convex, be provided with O-ring seal 14 between this block 6 and the described valve body 5, the right-hand member of this block 6 is abutted against mutually with spacer 10, the right-hand member of described spacer 10 is abutted against mutually with valve gap 12, this valve gap 12 fixes with the right-hand member of described valve body 5 by bolt and is connected, the left end of this valve gap 12 is provided with boss 11, be provided with sealing 13 between this boss 11 and the valve body 5, the left end of valve body 5 connection that fixes therewith of one end of spring 9, the other end of this spring 9 fixes with the right-hand member of the spool 7 that is provided with shoulder and is connected, and the left end of this spool 7 inserts the endoporus of described block 6.
Water press pilot-operated vent valve of the present invention is when water filling, spool 7 is moved to the left under the elastic force effect of hydraulic pressure and spring 9, is abutted against mutually with block 6 in the valve pocket, see that at the circumferencial direction of block 6 spool 7 and block 6 are that line contacts, this special contact form can reach extraordinary sealing effectiveness.When the needs decompress(ion), hydraulic stem 3 extends in valve pocket, is abutted against mutually with spool 7, heads on spool 7 and moves right, and at this moment the water in the valve pocket is gentle discharges from exhausr port 15 apace, reaches the purpose of quick decompress(ion).
Claims (1)
1, a kind of water press pilot-operated vent valve, it is characterized in that comprising the valve body that is provided with cavity, this left end above valve body is provided with oil hole, this right-hand member above valve body is provided with air intake opening, this air intake opening is connected with the filling pipe of hydrostatic testing machine by the air intake opening seal flange, be provided with the gas outlet below the described valve body, this gas outlet is connected with drainage pipeline by the gas outlet seal flange, the left end of described valve body is connected with hydraulic cylinder by joint flange, the hydraulic stem of this hydraulic cylinder inserts the left end of described valve body, this hydraulic stem is being provided with O-ring seal respectively near described oil hole place, the cavity middle part of described valve body is provided with the block of band endoporus, the endoporus of this block right-hand member head is convex, be provided with O-ring seal between this block and the described valve body, the right-hand member of this block is abutted against mutually with spacer, the right-hand member of described spacer is abutted against mutually with valve gap, this valve gap fixes with the right-hand member of described valve body by bolt and is connected, the left end of this valve gap is provided with boss, be provided with sealing between this boss and the valve body, the left end of the valve body connection that fixes therewith of one end of spring, the other end of this spring fixes with the right-hand member of the spool that is provided with shoulder and is connected, and the left end of this spool inserts the endoporus of described block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100126140A CN101620046B (en) | 2009-07-15 | 2009-07-15 | Water press pilot-operated vent valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100126140A CN101620046B (en) | 2009-07-15 | 2009-07-15 | Water press pilot-operated vent valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101620046A true CN101620046A (en) | 2010-01-06 |
| CN101620046B CN101620046B (en) | 2011-05-18 |
Family
ID=41513392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100126140A Active CN101620046B (en) | 2009-07-15 | 2009-07-15 | Water press pilot-operated vent valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101620046B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244699A (en) * | 2013-04-25 | 2013-08-14 | 甘肃蓝科石化高新装备股份有限公司 | Novel ultrahigh-pressure high-flow charging or filling valve |
| CN103244705A (en) * | 2013-04-25 | 2013-08-14 | 甘肃蓝科石化高新装备股份有限公司 | Novel ultrahigh-pressure large-flow vent valve |
| CN105889606A (en) * | 2016-06-21 | 2016-08-24 | 佛山市南海金刚新材料有限公司 | Charging valve |
| CN106090361A (en) * | 2016-08-15 | 2016-11-09 | 郑州磨料磨具磨削研究所有限公司 | A kind of stepless variable supertension servo relief valve |
| CN106323752A (en) * | 2015-07-08 | 2017-01-11 | 安徽明腾永磁机电设备有限公司 | Hydraulic pressure test seal air bleeder |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4687022A (en) * | 1986-01-09 | 1987-08-18 | Iverson Jacob E | Pressure relief valve and regulator |
| CN100451406C (en) * | 2005-08-18 | 2009-01-14 | 徐广杰 | Air outlet valve for supplying heat and hot water of guarding against theft |
| CN101324274A (en) * | 2008-07-08 | 2008-12-17 | 中国船舶重工集团公司第七○二研究所 | Multifunctional exhaust valve |
| CN201434805Y (en) * | 2009-07-15 | 2010-03-31 | 中冶辽宁德龙钢管有限公司 | Liquid-control air vent valve of hydraulic press |
-
2009
- 2009-07-15 CN CN2009100126140A patent/CN101620046B/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244699A (en) * | 2013-04-25 | 2013-08-14 | 甘肃蓝科石化高新装备股份有限公司 | Novel ultrahigh-pressure high-flow charging or filling valve |
| CN103244705A (en) * | 2013-04-25 | 2013-08-14 | 甘肃蓝科石化高新装备股份有限公司 | Novel ultrahigh-pressure large-flow vent valve |
| CN103244705B (en) * | 2013-04-25 | 2015-07-22 | 甘肃蓝科石化高新装备股份有限公司 | Novel ultrahigh-pressure large-flow vent valve |
| CN106323752A (en) * | 2015-07-08 | 2017-01-11 | 安徽明腾永磁机电设备有限公司 | Hydraulic pressure test seal air bleeder |
| CN105889606A (en) * | 2016-06-21 | 2016-08-24 | 佛山市南海金刚新材料有限公司 | Charging valve |
| CN105889606B (en) * | 2016-06-21 | 2019-07-19 | 佛山市南海金刚新材料有限公司 | A kind of prefill valve |
| CN106090361A (en) * | 2016-08-15 | 2016-11-09 | 郑州磨料磨具磨削研究所有限公司 | A kind of stepless variable supertension servo relief valve |
| CN106090361B (en) * | 2016-08-15 | 2018-03-27 | 郑州磨料磨具磨削研究所有限公司 | A kind of stepless variable super-pressure servo relief valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101620046B (en) | 2011-05-18 |
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