CN201250924Y - High-pressure and ultra-low temperature four-way ball valve - Google Patents

High-pressure and ultra-low temperature four-way ball valve Download PDF

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Publication number
CN201250924Y
CN201250924Y CNU2008201352737U CN200820135273U CN201250924Y CN 201250924 Y CN201250924 Y CN 201250924Y CN U2008201352737 U CNU2008201352737 U CN U2008201352737U CN 200820135273 U CN200820135273 U CN 200820135273U CN 201250924 Y CN201250924 Y CN 201250924Y
Authority
CN
China
Prior art keywords
valve
way ball
spheroid
stainless steel
ultralow temperature
Prior art date
Application number
CNU2008201352737U
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Chinese (zh)
Inventor
潘明尧
卞菊芳
刘成美
Original Assignee
江苏九龙阀门制造有限公司
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Publication date
Application filed by 江苏九龙阀门制造有限公司 filed Critical 江苏九龙阀门制造有限公司
Priority to CNU2008201352737U priority Critical patent/CN201250924Y/en
Application granted granted Critical
Publication of CN201250924Y publication Critical patent/CN201250924Y/en

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Abstract

The utility model relates to a high-pressure and ultra-low temperature four-way ball valve which comprises a valve body (10), a bottom cover (15), a valve cover (4), a ball body (19), a valve seat (8), a packing washer (5), a valve rod (20), and the like, wherein the valve rod (20) and the ball body (19) are arranged in the valve body (10), the bottom cover (15) is fixed on the valve body (10) through bolts and nuts, and then, the valve seat (8) and the valve cover (4) are fixed on the periphery of the valve body (10) through bolts (1) and nuts (2). Stainless steel metal O-shaped rings are respectively arranged between the valve cover (4) and the valve body (10) and between the valve seat (8) and the valve cover (4) so as to reduce the twisting moment of the valve, achieve low temperature and good sealing performance in high-pressure work station, have long service life and solve the phenomenon that the ball body is hard to open and close in a high-pressure state.

Description

High pressure ultralow temperature four way ball valve
(1) technical field
The utility model relates to a kind of four way ball valve, relates in particular under a kind of particular surroundings the four way ball valve of be suitable for high pressure resistant, anti-ultralow temperature.
(2) background technique
Four way ball valve is a kind of at the widely used ball valve in industrial production field, but under the environment of some specific (special) requirements, in the switching as media such as deep-sea ocean platform, rock gas air reservoir and space flight devices, under the environment of high pressure and ultralow temperature, the sealing of ball valve, intensity and valve torque all can go wrong, and use thereby influence is normal.
Particularly do not reach desirable requirement, in existing industrial production field, often needing high performance four way ball valve at long-term ultralow temperature, hardness, intensity, the wear-resisting and decay resistance of material under the high pressure conditions.
(3) model utility content
[problem that will solve]
The utility model proposes a kind of four way ball valve that especially big sealing contact surface is long-pending and double sealing structure designs that adopts for this reason, reduce the seal pressure of the pressure of medium to sealing material (nonmetallic material), thereby reduced valve torque, reach low pressure and high pressure operating mode lower seal performance is good, long service life.Solve spheroid and under high pressure conditions, opened and closed difficult phenomenon.
Though general formula body stainless steel difficult to understand can satisfy-196 ℃ requirement, do not reach desirable requirement at long-term ultralow temperature, hardness, intensity, the wear-resisting and decay resistance of material under the high pressure conditions.Body element and stainless steel metal 0 shape circle that the utility model has adopted U.S. ASTM standard A180-316,316L stainless steel material to make.Its Applicable temperature-250 ℃ ~ 500 ℃, the high pressure of anti-400Mpa, anticorrosive anti-wear.
[technological scheme]
A kind of high pressure ultralow temperature four way ball valve, this four way ball valve penetrates valve body from valve body 10 bottoms and adds in the long-neck hole after valve rod 20 shanks are provided with thrust pad 22 and stainless steel metal 0 shape circle 23, the spheroid 19 that has four through holes is positioned over valve body 10 inside, spheroid 19 upper end square grooves and valve rod 20 lower end tetragonal bodies fix, bottom 15 cooperates the location with spheroid 19 after, by full tooth double-screw bolt, nut is fixed on the valve body 10, valve rod assembly and spheroid assembly are equipped with in valve body 10 inside, on each opening of described four way ball valve, valve gap 4 is all arranged by full tooth bolt 1, nut 2 is pressed to valve seat 8 on the spheroid 19, between valve gap 4 and valve body 10, be provided with stainless steel metal O shape circle, between valve seat 8 and valve gap 4, also be provided with stainless steel metal O shape circle.
Four sides of valve body 10 and spheroid 19 through holes form two pairs of import and export, and rotary valve rod 20 can drive spheroid 19 rotations.In valve body 10 4 sides, valve seat 8 is installed all, the sealing seat 9 that is embedded in the valve seat 8 is arranged between valve seat 8 and spheroid 19.
Be provided with packing washer 5 between valve gap 4 and valve seat 8, also mounting spring 3 is used to push packing washer 5 on packing washer 5.
Between valve seat 8 and packing washer 5, also be provided with valve seat pad 7.
Blue pad 6 in being lined with between valve body 10 and valve gap 4 is lined with bottom pad 16 between bottom 15 and valve body 10, stainless steel metal 0 shape circle 17 is arranged at the contact seal position of bottom 15 and valve body 10.
Between valve rod 20 and valve body 10, be provided with thrust pad 22, also be provided with stainless steel metal 0 shape circle 23, anti static device 24 and fire prevention pad 26 in the contact seal portion of valve rod 20 and valve body 10.
Stainless steel metal 0 shape circle selects for use USS United States Standard A180-316 or 316L stainless steel material to make.
[beneficial effect]
Specifically, advantage of the present utility model is as follows:
Adopt the long-pending and double sealing structure design of especially big sealing contact surface, reduce the seal pressure of the pressure of medium, thereby reduced valve torque, reach low pressure and high pressure operating mode lower seal performance is good, long service life sealing material (nonmetallic material).Solve spheroid and under high pressure conditions, opened and closed difficult phenomenon.
Body element and stainless steel metal 0 shape circle that this valve selects for use U.S. ASTM standard A180-316,316L stainless steel material to make.Its Applicable temperature-250 ℃~500 ℃, the high pressure of anti-400Mpa, anticorrosive anti-wear.Satisfied the requirement of under the working condition of high pressure, high vacuum, ultralow temperature, using.
All adopt heat treatment and cryogenic treatment before and after all part processing.Improved hardness, intensity, the wear-resisting and impact-resistant performance of material by heat treatment, improved material in ultralow temperature state undertissue's stability of structure and reliability by cryogenic treatment.And, making spheroid circularity reach 0.01mm to adopting special abrasive process tricks of the trade in the ball seal face course of working, roughness reaches more than the Ra0.2.Realized that four way ball valve is at " two height ", " one is low ", " two is anti-" (two height: high pressure 1500Lb, high vacuum 1 x 10 -7Cm 3/ s; One is low: ultralow temperature-1960C; Two is anti-: corrosion-resistant, wear-resistant.) operating mode under, reach zero leakage,
(4) description of drawings
Fig. 1 is the longitudinal sectional view of four way ball valve;
Fig. 2 is the transverse sectional view of four way ball valve;
Fig. 3 is the enlarged diagram of A portion among Fig. 1.
(5) embodiment
Fig. 1 shows the longitudinal sectional view of high pressure ultralow temperature four way ball valve.This four way ball valve passes thrust pad 22 and top at valve rod 20 and sets stainless steel metal 0 shape circle 23 backs and penetrate the body mesopore from valve body 10 bottoms.The spheroid 19 that will have through hole places the inside of valve body 10, and bottom 15 penetrates in spheroid 19 base apertures determining, is fixed on the valve body 10 by full tooth bolt, nut.
Two 90 ° of curved channels (specifically can be referring to shown in Fig. 2, do not describing in detail at this) are arranged in described spheroid 19, can be communicated with two adjacent mouths successively, thereby constitute four-way valve body by rotating (half-twist, 180 °, 270 °) respectively spheroid 19.In each outlet, all have identical structure, that is to say on each mouthful of valve all have assemblies such as valve gap 4, packing washer 5, valve seat 8 and sealing seat 9.Only it is described in detail at this in conjunction with an outlet, valve body four sides all have valve gap 4 by full tooth bolt 1, nut 2 (see figure 2)s valve seat 8 to be pressed on the spheroid 19, the outside of each outlet can connect other pipeline or equipment, between valve gap 4 and valve body 10, be provided with stainless steel metal 0 shape circle, also be provided with stainless steel metal 0 shape circle between valve seat 8 and valve gap 4, described stainless steel metal 0 shape circle selects for use USS United States Standard A180-316 or 316L stainless steel material to make.
Though general formula body stainless steel difficult to understand can satisfy-196 ℃ requirement, do not reach desirable requirement at long-term ultralow temperature, hardness, intensity, the wear-resisting and decay resistance of material under the high pressure conditions.Body element and stainless steel 0C type circle that this valve selects for use U.S. ASTM standard A180-316,316L stainless steel material to make.Its Applicable temperature-250 ℃~500 ℃, the high pressure of anti-400Mpa, anticorrosive anti-wear.Satisfied the requirement of under the working condition of high pressure, high vacuum, ultralow temperature, using.
The inner face of described bottom 15 middle part has is convenient to the bottom axle sleeve 18 that cooperates with spheroid 19; Valve rod 20 passes from valve body 10 inside and drives spheroid 19 rotations by valve body 10 top exposed parts valve rod shanks.
The sealing seat 9 that is sealed and matched with spheroid 19 is installed in valve seat 8.Between valve gap 4 and valve seat 8, be provided with packing washer 5, spring 3 be set in valve gap 4 be used to push packing washer 5.Between valve seat 8 and packing washer 5, also be provided with fire prevention pad 7.Between valve body 10 and valve gap 4, be lined with blue pad 6 in the stainless steel horsestone China ink, between bottom 15 and valve body 10, be lined with stainless steel horsestone China ink bottom pad 16, have stainless steel metal 0 shape circle 17 in the contact seal portion of bottom 15.
At valve rod 20 and pack into and be provided with thrust pad 22 between the valve body; Also be provided with stainless steel metal 0 shape circle 23, anti static device 24 and fire prevention pad 26 at valve rod 20 lengthening shanks and valve body contact position.
As shown in Figure 2, thereby drive spheroids 19 half-twists, 180 ° or 270 °, make two 90 ° of curved channels in the spheroid 19 close or be communicated with two adjacent import and export by rotation valve rod 20.All adopt heat treatment and cryogenic treatment before and after all part processing.Hardness, intensity, the wear-resisting and impact-resistant performance of material have been improved by heat treatment.Improved material in ultralow temperature state undertissue's stability of structure and reliability by cryogenic treatment.And, making spheroid circularity reach 0.01mm to adopting special abrasive process in the ball seal face course of working, thick poor degree reaches more than the Sa0.2.Realized that four way ball valve under the operating mode of " two height ", " is low ", " two is anti-", reaches zero leakage.
Fig. 3 shows the local enlarged diagram of A portion among Fig. 1.Wherein show in detail spheroid 19 by realizing the situation of sealing between sealing seat 9 and the valve seat 8, adopt stainless steel metal 0 shape to enclose and realize sealing, and be connected the situation of sealing between valve seat 8 and the valve gap 4.

Claims (10)

1, a kind of high pressure ultralow temperature four way ball valve, this four way ball valve penetrates valve body from valve body (10) bottom and adds in the long-neck hole after valve rod (20) shank is provided with thrust pad (22) and stainless steel metal O shape circle (23), the spheroid (19) that has four through holes is positioned over valve body (10) inside, spheroid (19) upper end square groove and valve rod (20) lower end tetragonal body fix, bottom (15) cooperates the location with spheroid (19) after, be fixed on the valve body (10) by full tooth double-screw bolt, nut, it is characterized in that:
Valve rod assembly and spheroid assembly are equipped with in valve body (10) inside, on each opening of described four way ball valve, all there is valve gap (4) valve seat (8) to be pressed on the spheroid (19) by full tooth bolt (1), nut (2), between valve gap (4) and valve body (10), be provided with stainless steel metal O shape circle, between valve seat (8) and valve gap (4), also be provided with stainless steel metal O shape circle.
2, high pressure ultralow temperature four way ball valve according to claim 1 is characterized in that: four sides of valve body (10) and spheroid (19) through hole form two pairs of import and export, and rotary valve rod (20) can drive spheroid (19) rotation.
3, high pressure ultralow temperature four way ball valve according to claim 2 is characterized in that: in valve body (10) four sides valve seat (8) is installed all, the sealing seat (9) that is embedded in the valve seat (8) is arranged between valve seat (8) and spheroid (19).
4, high pressure ultralow temperature four way ball valve according to claim 1 and 2 is characterized in that: be provided with packing washer (5) between valve gap (4) and valve seat (8), going up also at packing washer (5), mounting spring (3) is used to push packing washer (5).
5, according to claim 2 or 3 described high pressure ultralow temperature four way ball valves, it is characterized in that: between valve seat (8) and packing washer (5), also be provided with valve seat pad (7).
6, high pressure ultralow temperature four way ball valve according to claim 4 is characterized in that: also be provided with valve seat pad (7) between valve seat (8) and packing washer (5).
7, high pressure ultralow temperature four way ball valve according to claim 5 is characterized in that: also be provided with valve seat pad (7) between valve seat (8) and packing washer (5).
8, according to arbitrary described high pressure ultralow temperature four way ball valve in the claim 1 to 3, it is characterized in that: blue pad (6) between valve body (10) and valve gap (4), being lined with, between bottom (15) and valve body (10), be lined with bottom pad (16), stainless steel metal O shape circle (17) arranged at the contact seal position of bottom (15) and valve body (10).
9, according to arbitrary described high pressure ultralow temperature four way ball valve in the claim 1 to 3, it is characterized in that: between valve rod (20) and valve body (10), be provided with thrust pad (22), also be provided with stainless steel metal O shape circle (23), anti static device (24) and the pad (26) of preventing fires in the contact seal portion of valve rod (20) and valve body (10).
10, according to arbitrary described high pressure ultralow temperature four way ball valve in the claim 1 to 3, it is characterized in that: stainless steel metal O shape circle selects for use USS United States Standard A180-316 or 316L stainless steel material to make.
CNU2008201352737U 2008-09-12 2008-09-12 High-pressure and ultra-low temperature four-way ball valve CN201250924Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008201352737U CN201250924Y (en) 2008-09-12 2008-09-12 High-pressure and ultra-low temperature four-way ball valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008201352737U CN201250924Y (en) 2008-09-12 2008-09-12 High-pressure and ultra-low temperature four-way ball valve

Publications (1)

Publication Number Publication Date
CN201250924Y true CN201250924Y (en) 2009-06-03

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102207210A (en) * 2010-12-21 2011-10-05 卓开挺 Four-way valve for adsorption dryer
CN102537418A (en) * 2011-12-14 2012-07-04 邯郸派瑞电器有限公司 Fully-communicated four-way valve
CN102620011A (en) * 2012-03-16 2012-08-01 江苏弘瑞液压机械科技有限公司 Improved cement special ball valve
CN103148243A (en) * 2013-03-21 2013-06-12 中联重科股份有限公司渭南分公司 Reversing ball valve
CN103801897A (en) * 2013-12-26 2014-05-21 方正阀门集团有限公司 Ultralow-temperature tool-aid-type fixing ball valve and assembling method thereof
CN104197090A (en) * 2014-09-10 2014-12-10 浙江三花旋转阀有限公司 Rotary type fluid passage changeover valve
CN104197089A (en) * 2014-09-10 2014-12-10 浙江三花旋转阀有限公司 Rotary type fluid passage changeover valve
CN104864119A (en) * 2014-02-21 2015-08-26 浙江三花旋转阀有限公司 Rotary flow path switch valve

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102207210A (en) * 2010-12-21 2011-10-05 卓开挺 Four-way valve for adsorption dryer
CN102537418A (en) * 2011-12-14 2012-07-04 邯郸派瑞电器有限公司 Fully-communicated four-way valve
CN102537418B (en) * 2011-12-14 2013-11-13 邯郸派瑞电器有限公司 Fully-communicated four-way valve
CN102620011A (en) * 2012-03-16 2012-08-01 江苏弘瑞液压机械科技有限公司 Improved cement special ball valve
CN103148243A (en) * 2013-03-21 2013-06-12 中联重科股份有限公司渭南分公司 Reversing ball valve
CN103148243B (en) * 2013-03-21 2015-04-29 中联重科股份有限公司渭南分公司 Reversing ball valve
CN103801897A (en) * 2013-12-26 2014-05-21 方正阀门集团有限公司 Ultralow-temperature tool-aid-type fixing ball valve and assembling method thereof
CN103801897B (en) * 2013-12-26 2016-05-25 方正阀门集团有限公司 On a kind of ultralow temperature, fill formula fixing ball valve and assembly method thereof
CN104864119A (en) * 2014-02-21 2015-08-26 浙江三花旋转阀有限公司 Rotary flow path switch valve
CN104197090A (en) * 2014-09-10 2014-12-10 浙江三花旋转阀有限公司 Rotary type fluid passage changeover valve
CN104197089A (en) * 2014-09-10 2014-12-10 浙江三花旋转阀有限公司 Rotary type fluid passage changeover valve

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Granted publication date: 20090603

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