CN203248756U - Novel ultrahigh-pressure and high-flow charging or filling valve - Google Patents

Novel ultrahigh-pressure and high-flow charging or filling valve Download PDF

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Publication number
CN203248756U
CN203248756U CN 201320215606 CN201320215606U CN203248756U CN 203248756 U CN203248756 U CN 203248756U CN 201320215606 CN201320215606 CN 201320215606 CN 201320215606 U CN201320215606 U CN 201320215606U CN 203248756 U CN203248756 U CN 203248756U
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CN
China
Prior art keywords
pressure
valve
spool
bearing
seal ring
Prior art date
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.)
Withdrawn - After Issue
Application number
CN 201320215606
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Chinese (zh)
Inventor
李秀全
张永红
解庆
吴利琴
席浩君
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lanzhou Lanya Petrochemical Equipment Engineering Co Ltd
MACHINERY INDUSTRY LANZHOU PETROLEUM CHEMICAL EQUIPMENT INSPECTION OFFICE CO LTD
Shanghai Lanbin Petrochemical Equipment Co Ltd
Lanzhou Petroleum Machinery Research Institute
Original Assignee
Lanzhou Lanya Petrochemical Equipment Engineering Co Ltd
MACHINERY INDUSTRY LANZHOU PETROLEUM CHEMICAL EQUIPMENT INSPECTION OFFICE CO LTD
Shanghai Lanbin Petrochemical Equipment Co Ltd
Lanzhou Petroleum Machinery Research Institute
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lanzhou Lanya Petrochemical Equipment Engineering Co Ltd, MACHINERY INDUSTRY LANZHOU PETROLEUM CHEMICAL EQUIPMENT INSPECTION OFFICE CO LTD, Shanghai Lanbin Petrochemical Equipment Co Ltd, Lanzhou Petroleum Machinery Research Institute filed Critical Lanzhou Lanya Petrochemical Equipment Engineering Co Ltd
Priority to CN 201320215606 priority Critical patent/CN203248756U/en
Application granted granted Critical
Publication of CN203248756U publication Critical patent/CN203248756U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A novel ultrahigh-pressure and high-flow charging or filling valve comprises a pressure-bearing body, a valve element and a hydraulic cylinder or air cylinder connected at the upper end of the valve element; a guide body is arranged on the lower portion of the valve element, and the guide body and the lower end of the valve element form dynamic ultrahigh-pressure sealing through a locating ring and a radial large-gap elastic seal ring, wherein the locating ring is arranged at the lower end of the guide body, and the radial large-gap elastic seal ring is arranged in the locating ring. The radial large-gap elastic seal ring seals the valve element, and then the lower end face of the radial large-gap elastic seal ring and a lower portion channel of the pressure-bearing body form a low pressure area a; meanwhile, the periphery of the radial large-gap elastic seal ring and an inner channel of the pressure-bearing body form a high pressure area c; the guide body and the valve element form sliding ultrahigh-pressure sealing through a pressing sleeve, a V-shaped combined seal and a guide sleeve, wherein the pressing sleeve, the V-shaped combined seal and the guide sleeve are sequentially arranged on the upper portion in the guide body. The novel ultrahigh-pressure and high-flow charging or filling valve solves the problems that a large-caliber steel tube is long in low-pressure filling time and the service life of a charging (filling) valve is short, reduces the weight of a seal mould of an ultrahigh-pressure steel tube hydrostatic testing machine, and greatly improves production efficiency of the hydrostatic testing machine.

Description

The large flow topping up of novel ultrahigh pressure or pouring valve
Technical field
The utility model relates to the machinery fields such as petroleum drilling and mining, metallurgy and nuclear energy, be applied to specifically steel pipe's production or reprocessing after the hydrostatic test in the large flow topping up of a kind of novel ultrahigh pressure or pouring valve.
Background technique
In recent years, along with the demand surge of country to steel pipe, domestic output of steel tube is near more than 7,000 ten thousand tons, wherein output is over half as petroleum steel pipe nearly, requirement according to API standard and relevant criterion, petroleum steel pipe must just can come into operation after qualified through the hydrostatic test, thus petroleum steel pipe manufacturing enterprise must supporting high reliability, the ultra high water pressure testing machine of two-forty can satisfy the production capacity requirement.For steel pipe hydrostatic tester, the sealing reliability the when factor that affects reliability mainly is life-span of liquid-filling valve and high pressure; The principal element that affects manufacturing efficiency is that the water injection time of steel pipe is long.
Fig. 4 is conventional ultra-high pressure high flow topping up (perfusion) valve arrangement schematic diagram, mainly is comprised of liquid (gas) cylinder 17, connecting rod 18, flange seat 19, valve seat 20, spool 21, pressure-bearing body 22 and high-pressure seal ring 23 etc.When needs pour into, fluid cylinder promotes spool by connecting rod and moves downward, the low-pressure water on valve seat top enters into the pressure-bearing body by the annular space of spool and valve seat, fluid cylinder moved upward by connecting rod pulling spool and makes its conical surface and the valve seat conical surface form high pressure sealing after perfusion was finished, with low-pressure water and the valve seat lower isolation on valve seat top, finish the function of unidirectional pouring valve.From schematic diagram, find out conical surface sealing structure, require spool and valve seat to have high machining accuracy and heat treatment process, improve wear resistance, to increase operating life, even like this, this spool frequency of opening and closing is higher in the course of the work, along with the continuous wearing and tearing between spool and the valve seat, conical surface seal can lose efficacy very soon, so the poor reliability of this valve, operating life are short; In order to guarantee that large flow liquid passes through this valve, must add annular space between big valve core and the valve seat simultaneously, thereby this valve arrangement is increased, the boundary dimension of pressure-bearing body and flange seat also can strengthen accordingly, so that whole pressure-bearing body structure is heavy.Therefore must develop the difficult problem that very high ultra-high pressure high flow topping up (perfusion) valve of a kind of novel reliability had both solved steel pipe hydrostatic tester topping up (perfusion) valve poor reliability under the high pressure operating mode, also solve the low bottleneck technical barrier of manufacturing efficiency simultaneously.
The model utility content
The utility model provides the large flow topping up of a kind of novel ultrahigh pressure or pouring valve, realizes the quick topping up of large flow in steel pipe hydrostatic testing, and the while with superelevation nip and the unidirectional isolation of low pressure area, is played one-way valve when steel pipe rises up into the zone of high pressure.
In order to realize ultra-high pressure high flow topping up purpose, the technological scheme that the utility model is taked is: the large flow topping up of a kind of novel ultrahigh pressure or pouring valve comprise liquid or the pneumatic cylinder of pressure-bearing body and the connection of be connected with spool of inner spool thereof; Described spool bottom is equipped with guide way, is provided with radially large clearance sealing structure between this guide way lower end and the described spool; Described guide way top and described spool form the slip superhigh pressure sealing and cooperate.
Positioning ring and the radially large gap elastic seal ring of the interior installation of this positioning ring and the lower end formation clearance sealing structure of described spool that described guide way is installed by its lower end.
Its lower end surface and described pressure-bearing body lower passage form a low pressure area a behind the elastic seal ring sealed valve core of described radially large gap; The periphery of this radially large gap elastic seal ring and described pressure-bearing body inner passage form zone of high pressure c simultaneously; Form a superelevation nip b with pressure-bearing body inner passage behind the described V-type combination seal sealed valve core that is installed in the guide way.
The gland that described guide way is installed successively by its internal upper part, V-type combination seal and guide sleeve and described spool form the slip superhigh pressure sealing and cooperate.
Being provided with high-pressure seal ring between described pressure-bearing body and the guide way top forms Static superhigh pressure sealing
The ultrahigh pressure that the utility model provides, large flow topping up or pouring valve are mainly used on the steel pipe hydrostatic tester equipment, have advantages of in the process of the test that flow is large, bearing capacity is high, sealing is reliable and long service life, after being integrated into the perfusion sealed mold, have the light and handy characteristics of structure.Solve the difficult problem of steel pipe hydrostatic tester topping up (perfusion) valve poor reliability under the high pressure operating mode, also solved the low bottleneck technical barrier of hydraulic press manufacturing efficiency simultaneously.Alleviate again the weight of ultrahigh-pressure steel pipe hydrostatic testing machine sealed mold, solved large-diameter steel pipe low-pressure injection time length, topping up (perfusion) valve low difficult problem in working life, significantly improved the manufacturing efficiency of hydrostatic testing machine simultaneously.
The utility model also can be applicable on large hydraulic or the hydraulic pressure forging equipment.Described steel pipe is
Tubing and casing, transportation pipe, municipal pipeline, boiler tube, petrochemical industry steel pipe, nuclear energy steel pipe and other Special Alloy Steel pipe.
Description of drawings
Fig. 1 is the utility model structural representation;
Structural representation when Fig. 2 is the quick topping up of the utility model enforcement low pressure;
Fig. 3 is existing ultra-high pressure high flow topping up or pouring valve structural representation.
Among Fig. 1,2: 1-pressure-bearing body; 2-radially large gap elastic seal rings; 3-positioning ring; 4-guide way; 5-spool; 6-guide sleeve; 7-V-type combination seal; 8-high-pressure seal ring; 9-gland; 10-high pressure flange; 11-screw; 12-locating flange; 13-support; 14-liquid or pneumatic cylinder; 15-steel pipe sealing mould; 16-steel pipe
Among Fig. 3: 17-liquid or pneumatic cylinder; 18-connecting rod; 19-flange seat; 20-valve seat; 21-spool; 22-pressure-bearing body; 23-high-pressure seal ring.
Embodiment
Below in conjunction with accompanying drawing the utility model and beneficial effect thereof are described in further detail.
With reference to Fig. 1-2, the large flow topping up of a kind of novel ultrahigh pressure or pouring valve mainly are comprised of pressure-bearing body 1, radially large gap elastic seal ring 2, positioning ring 3, guide way 4, spool 5, guide sleeve 6, V-type combination seal 7, high-pressure seal ring 8, gland 9, high pressure flange 10, screw 11, locating flange 12, support 13, liquid or pneumatic cylinder 14.Described radially large gap elastic seal ring 2 adopts the high-strength polyurethane O-ring seal and is installed in the positioning ring 3, after being installed in guide sleeve 6 in the guide way 4, V-type combination seal 7, gland 9 and forming an integrated package, be fixed in the pressure-bearing body 1 by high pressure flange 10, screw 11 and high-pressure seal ring 8; The support 13 that liquid or pneumatic cylinder 14 are installed is fixed on the high pressure flange 10, and liquid or pneumatic cylinder 14 are linked together spool 5 by locating flange 12, so that the piston rod of liquid or pneumatic cylinder 14 and locating flange 12, spool 5 forms mass motion parts; After connecting with steel pipe sealing mould 15, pressure-bearing body 1 forms an integral body.The guide way 4 that is installed in pressure-bearing body 1 inside has been realized static superhigh pressure sealing with high-pressure seal ring 8, prevent that liquid is to outward leakage, and realize all the time the slip superhigh pressure sealing between the V-type combination seal 7 in the guide way 4 and the spool 5, radially large gap elastic seal ring 2 in the positioning ring 3 radially inwardly shrinks internal surface under the effect of c district high pressure liquid embraces spool 5 external cylindrical surfaces and formed superhigh pressure sealing, thereby has produced the Three pressures district: low pressure area a is used for topping up, superelevation nip b and zone of high pressure c.With reference to Fig. 1.
The utility model Quick topping up embodiment working procedure:In process of production, according to flow and control command, when steel pipe needs quick topping up, the piston rod of liquid or pneumatic cylinder 14 is retracted and is with movable valve plug 5 to move upward, so that spool 5 lower end external cylindrical surfaces break away from radially large gap elastic seal ring 2 inner annular space faces fully, ((Pmax≤0.6MPa) flow into the b district to a large amount of low pressure liquids in a district this moment of Dn 〉=245mm) fast to form larger runner, the liquid in b district has entered steel pipe 16 to be tried after by sealed mold 15, has realized the purpose of the quick topping up of low pressure.Implementation process as shown in Figure 2.
The utility model Superelevation nip and low pressure area isolation, play one-way valve embodiment working procedure:In process of production, according to control command, after steel pipe is finished quick topping up, the piston rod of liquid or pneumatic cylinder 14 stretches out promotion spool 5 and moves downward, so that spool 5 lower end external cylindrical surfaces are in the same level position with radially large gap elastic seal ring 2 inner cylindrical surfaces, the radially large gap of highly pressurised liquid effect compression elastic seal ring 2 distortion in c district are shunk, so that radially large gap elastic seal ring 2 inner cylindrical surfaces and the complete gluing, sealing of spool 5 lower end outer cylinder surfaces, this moment, a district and b district were isolated fully, the a district is that (Pmax≤0.8MPa), the b district is the zone of high pressure to low pressure area; The b district constantly raises in the effect downforce of external liquid, and after the fluid pressure in the fluid pressure in b district and c district was identical, the pressure in c district and b district rose simultaneously, reaches till the pressure (Pmax≤130MPa)) of artificial setting.Implementation process as shown in Figure 1.

Claims (5)

1. the large flow topping up of novel ultrahigh pressure or pouring valve comprise liquid or pneumatic cylinder that pressure-bearing body and inner spool thereof and spool upper end connect; It is characterized in that: described spool (5) bottom is equipped with guide way (4), is provided with radially large clearance sealing structure between this guide way (4) lower end and the described spool (5); Described guide way (4) top and described spool (5) form the slip superhigh pressure sealing and cooperate.
2. the large flow topping up of a kind of novel ultrahigh pressure according to claim 1 or pouring valve is characterized in that: positioning ring (3) and the radially large gap elastic seal ring (2) of the interior installation of this positioning ring (3) and the radially large clearance sealing structure of lower end formation of described spool (5) that described guide way (4) is installed by its lower end.
3. the large flow topping up of a kind of novel ultrahigh pressure according to claim 2 or pouring valve is characterized in that: low pressure area a of its lower end surface and described pressure-bearing body (1) lower passage formation behind described radially large gap elastic seal ring (2) sealed valve core (5); The periphery of this radially large gap elastic seal ring (2) and described pressure-bearing body (1) inner passage form zone of high pressure c simultaneously; Behind described V-type combination seal (7) sealed valve core (5) that is installed in the guide way (4) and pressure-bearing body (1) inner passage forms a superelevation nip b.
4. the large flow topping up of a kind of novel ultrahigh pressure according to claim 1 or pouring valve is characterized in that: the gland (9) that described guide way (4) is installed successively by its internal upper part, V-type combination seal (7) and guide sleeve (6) and the cooperation of described spool (5) formation slip superhigh pressure sealing.
5. the large flow topping up of a kind of novel ultrahigh pressure according to claim 1 or pouring valve is characterized in that: be provided with high-pressure seal ring (8) between described pressure-bearing body (1) and guide way (4) top and form superhigh pressure sealing.
CN 201320215606 2013-04-25 2013-04-25 Novel ultrahigh-pressure and high-flow charging or filling valve Withdrawn - After Issue CN203248756U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320215606 CN203248756U (en) 2013-04-25 2013-04-25 Novel ultrahigh-pressure and high-flow charging or filling valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320215606 CN203248756U (en) 2013-04-25 2013-04-25 Novel ultrahigh-pressure and high-flow charging or filling valve

Publications (1)

Publication Number Publication Date
CN203248756U true CN203248756U (en) 2013-10-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320215606 Withdrawn - After Issue CN203248756U (en) 2013-04-25 2013-04-25 Novel ultrahigh-pressure and high-flow charging or filling valve

Country Status (1)

Country Link
CN (1) CN203248756U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned
AV01 Patent right actively abandoned

Granted publication date: 20131023

Effective date of abandoning: 20171114