CN102425682B - High-temperature and high-pressure steam pressure reducing ball valve and production technology thereof - Google Patents
High-temperature and high-pressure steam pressure reducing ball valve and production technology thereof Download PDFInfo
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- CN102425682B CN102425682B CN201110395101XA CN201110395101A CN102425682B CN 102425682 B CN102425682 B CN 102425682B CN 201110395101X A CN201110395101X A CN 201110395101XA CN 201110395101 A CN201110395101 A CN 201110395101A CN 102425682 B CN102425682 B CN 102425682B
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- 238000005516 engineering process Methods 0.000 title claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 230000007797 corrosion Effects 0.000 claims abstract description 23
- 238000005260 corrosion Methods 0.000 claims abstract description 23
- 239000007769 metal material Substances 0.000 claims abstract description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical group [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 25
- 238000000227 grinding Methods 0.000 claims description 15
- 238000012856 packing Methods 0.000 claims description 12
- 230000008676 import Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 229910000423 chromium oxide Inorganic materials 0.000 claims description 4
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 238000005242 forging Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 230000003628 erosive effect Effects 0.000 abstract description 12
- 238000005299 abrasion Methods 0.000 abstract 2
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 6
- 239000000843 powder Substances 0.000 description 6
- 239000012530 fluid Substances 0.000 description 4
- 229910003460 diamond Inorganic materials 0.000 description 3
- 239000010432 diamond Substances 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 239000003350 kerosene Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 210000002583 cell-derived microparticle Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses a high-temperature and high-pressure steam pressure reducing ball valve, which comprises a valve body, a V-shaped ball body and a left body, wherein the valve body and the left body form a ball body cavity; the valve body is provided with an outlet; the left body is provided with an inlet; a first pressure reducer is arranged in the inner cavity of the left body; a valve seat connected with the left body is arranged between the inner cavity of the left body and the ball body cavity; and the V-shaped ball body is arranged in the ball body cavity and in fit contact with a hard seal of the valve seat. The upper and lower ends of the V-shaped ball body are respectively connected with an upper valve rod and a lower valve rod, and a runner is formed in the V-shaped ball body. The valve body, the left body, the valve seat, the ball body, the upper valve rod and the lower valve rod are all made of metal materials; and the valve body, the valve seat and the ball body of the pressure reducing ball valve and the end face in contact with a medium flowing through the pressure reducing ball valve are respectively coated with abrasion-resistant anticorrosive layers. The invention also discloses a production technology for the high-temperature and high-pressure steam pressure reducing ball valve. The internal sealing performance, the pressure reducing performance and the service life of the pressure reducing ball valve can be ensured under the severe working conditions of high abrasion, high corrosion, high temperature, high pressure, high flow rate, gas erosion and the like.
Description
Technical field
The present invention relates to a kind of ball valve, specifically is high pressure high temperature vapor step-down ball valve and production technology thereof.
Background technique
Existing high temperature and high pressure steam valve mostly is single-seat adjusting valve, the existing history that goes up a century of the use of single-seat adjusting valve, though the improvement through structure and material, but be subjected to the restriction of the metallic material attribute of single-seat adjusting valve self structure and formation single-seat adjusting valve, existing single-seat adjusting valve more and more can not adapt to the demand of bad working environments such as high temperature and high pressure steam.The single seat reduction valve is as one type of single-seat adjusting valve, and it is erosion resistance and cavitation not, so the long-term use of single seat reduction valve is fragile in the steam ambient of High Temperature High Pressure, even dashes and wear.In order to overcome the defective of existing single seat reduction valve, innovate from aspects such as material, project organization and manufacturing process, develop erosion resistance and cavitation, resistant to elevated temperatures novel valve seems particularly necessary.
Summary of the invention
The objective of the invention is to solve the deficiencies in the prior art, a kind of high pressure high temperature vapor step-down ball valve and production technology thereof that is applicable to high wearing and tearing, deep-etching, strong erosion and cavitation erosion operating mode is provided.
Purpose of the present invention is achieved through the following technical solutions: high pressure high temperature vapor step-down ball valve, comprise valve body, V-type spheroid and the left body that is connected with valve body, valve body and left body constitute the spheroid chamber, valve body is provided with the outlet of connecting the spheroid chamber, left side body is provided with import and connects the inner chamber in import and spheroid chamber, be provided with first step down transformer in the inner chamber of described left body, and be provided with the valve seat that is connected with left body between the inner chamber of left body and the spheroid chamber, described V-type spheroid is arranged in the spheroid chamber and is sealed and matched firmly with valve seat and contacts; Described V-type spheroid up and down two ends is connected with upper valve rod and the lower valve rod that passes valve body respectively, when being provided with the relative valve seat rotation of V-type spheroid in the V-type spheroid import with export the runner that is communicated with or disconnects; Described valve body, left body, valve seat, spheroid, upper valve rod and lower valve rod are made by metallic material, and the valve body of described step-down ball valve, valve seat and spheroid all are coated with the wear-and corrosion-resistant layer respectively with on the end face that medium in the step-down ball valve of flowing through contacts.Ectosome of the present invention mainly is made of valve body and left body two-part, so the leakage point of connecting part is few.
The material of described wear-and corrosion-resistant layer is stupalith.Pottery has from slip, chemical stability and hardness height, and therefore the wear-and corrosion-resistant layer that adopts pottery to constitute has high wear-resistant, corrosion-resistant, erosive wear resistance, and has good sealability.
The stupalith of described wear-and corrosion-resistant layer is aluminium oxide or chromium oxide.Preferred aluminium oxide or the chromium oxide of adopting in the stupalith, because of tensile strength, compressive strength, Young's modulus and the hardness etc. of these two kinds of materials very high.
Be provided with the inner chamber of connecting outlet and spheroid chamber in the described valve body, and be provided with second step down transformer in the inner chamber of valve body.
Described first step down transformer and second step down transformer are made by stupalith.Adopt pottery to make first step down transformer and second step down transformer, can improve wear-resistant, the corrosion-resistant and erosive wear resistance of first step down transformer and second step down transformer.
The sidewall of described first step down transformer and second step down transformer all constitutes the structure with multilayer sleeve, and every layer of sleeve is provided with the through hole that a plurality of pore sizes are different and entanglement arranges.
The upper end of described upper valve rod is connected with the valve rod extension bar, and the upper end of described valve body is connected with the valve rod that is set on upper valve rod and the valve rod extension bar and lengthens cover; Be provided with the first stuffing box packing layer between described upper valve rod and the valve body, described valve rod extension bar and valve rod lengthen between the cover and are provided with the second stuffing box packing layer.The first stuffing box packing layer can reduce dielectric leakage and lengthen in the cover to valve rod, and it is overstocked to prevent that valve rod from lengthening in the cover, thereby reaches the purpose of elementary thermal insulation, and prevents that high-temperature steam is delivered to the top driver; The second stuffing box packing layer can seal again, thereby further prevents dielectric leakage.
The production technology of above-mentioned high pressure high temperature vapor step-down ball valve, when processing V-type spheroid, cut out the V-type mouth with reaching the standard grade at this spheroid again behind spheroid of forging processing formation earlier, after the moulding of V-type spheroid, all be coated with one deck wear-and corrosion-resistant layer respectively with on the end face that medium in the step-down ball valve of flowing through contacts at valve body, valve seat and the spheroid of step-down ball valve respectively, and then respectively the fitting surface of V-type spheroid and valve seat is ground, at last again will the V-type spheroid and valve seat assembling back to grinding V-type spheroid and valve seat are sealed and matched firmly.
The coating of described wear-and corrosion-resistant layer for adopt plasma spray coating process with aluminium oxide or chromia spray valve body, valve seat and the spheroid of step-down ball valve respectively with end face that medium in the step-down ball valve of flowing through contacts on.V-type spheroid and valve seat be to after grinding, utilize pottery from slip, can obtain good sealability.
Compared with prior art, the present invention has the following advantages: all be coated with the wear-and corrosion-resistant layer on (1) valve body of the present invention, valve seat and spheroid and the end face that the medium of flowing through in the step-down ball valve contacts, utilize the wear-and corrosion-resistant layer to have wear-resisting and etch-proof characteristics, in the face of bad working environments such as high wearing and tearing, deep-etching, strong erosion, strong cavitation erosion, high temperature, high pressure the time, still can guarantee interior sealability of the present invention and working life; Valve body of the present invention, left body, valve seat, spheroid, upper valve rod and lower valve rod are made by metallic material, can avoid the present invention that local embrittlement takes place.
(2) sidewall of the present invention's first step down transformer and second step down transformer all constitutes the structure with multilayer sleeve, every layer of sleeve is provided with the through hole that a plurality of pore sizes are different and entanglement arranges, the present invention circulates in through hole by medium fluid, can effectively change the actual internal area of fluid, reach the step-down purpose; Medium fluid can effectively reduce flow velocity during through first step down transformer, and the medium fluid flow velocity of the V-type spheroid of avoiding flowing through is too high, and long-term erosion and cause the V-type mouth of V-type spheroid to damage prolongs the working life of V-type spheroid.
(3) the present invention adopt plasma spray coating process with aluminium oxide or chromia spray valve body, valve seat and the spheroid of step-down ball valve respectively with end face that medium in the step-down ball valve of flowing through contacts on, so, can guarantee the adhesive strength of wear-and corrosion-resistant layer and metallic matrix, prevent that the wear-and corrosion-resistant pull-up from falling.
(4) the present invention is applied in industrial fields such as Coal Chemical Industry, thermal power generation, waste incineration, petrochemical industry, torch, especially in the face of bad working environments such as high wearing and tearing, deep-etching, strong erosion, strong cavitation erosion, high temperature, high pressure, more can demonstrate the working life of its remarkable sealability and overlength, price performance of the present invention is far superior to other similar valve.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
The corresponding name of reference character is called in the accompanying drawing: 1, valve body, 2, left body, 3, lower valve rod, 4, valve seat, 5, spheroid, 6, valve rod lengthens cover, 7, valve rod extension bar, 8, the first stuffing box packing layer, 9, the second stuffing box packing layer, 10, first step down transformer, 11, upper valve rod, 12, import, 13, second step down transformer, 14, outlet, 15, runner.
Embodiment
The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiments of the present invention are not limited thereto.
Embodiment:
As shown in Figure 1, high pressure high temperature vapor step-down ball valve, comprise valve body 1, V-type spheroid 5 and the left body 2 that is connected with valve body 1, valve body 1 constitutes the spheroid chamber with left body 2, valve body 1 is provided with outlet 14 and connects the inner chamber in outlet 14 and spheroid chamber, left side body 2 is provided with import 12 and connects the inner chamber in import 12 and spheroid chamber, be provided with first step down transformer 10 in the inner chamber of left side body 2, be provided with second step down transformer 13 in the inner chamber of valve body 1, wherein, first step down transformer 10 and second step down transformer 13 are made the cage porous structure by stupalith, namely first step down transformer 10 and both sidewalls of second step down transformer 13 all constitute the structure with multilayer sleeve, every layer of sleeve is provided with the through hole that a plurality of pore sizes are different and entanglement arranges, and the big smallest number of the through hole between sleeve layers and the sleeve layers is different and be in diverse location.
Be provided with the valve seat 4 that is connected with left body 2 between inner chamber and the spheroid chamber of left side body 2, V-type spheroid 5 is arranged in the spheroid chamber and is sealed and matched firmly with valve seat 4 and contacts.The V-type spheroid is connected with upper valve rod 11 and the lower valve rod 3 that passes valve body 1 respectively in two ends about in the of 5, and the upper end of upper valve rod 11 is connected with valve rod extension bar 7, and the upper end of valve body 1 is connected with the valve rod that is set on upper valve rod 11 and the valve rod extension bar 7 and lengthens cover 6.Be provided with the first stuffing box packing layer 8 between upper valve rod 11 and the valve body 1, valve rod extension bar 7 and valve rod lengthen between the cover 6 and are provided with the second stuffing box packing layer 9.Because Expanded graphite and reinforced TFE can satisfy the usage requirement of low temperature, high temperature, and have temperature applicable range widely, the first stuffing box packing layer 8 and the second stuffing box packing layer 9 adopt Expanded graphites or reinforced TFE to make.When being provided with relative valve seats 4 rotations of V-type spheroid 5 in the V-type spheroid 5 import 12 with export 14 runners 15 that are communicated with or disconnect.Valve body 1, left body 2, valve seat 4, spheroid 5, upper valve rod 11, lower valve rod 3, valve rod extension bar 7 and valve rod lengthen cover 6 and make by metallic material.The valve body 1 of step-down ball valve, valve seat 4 and spheroid 5 all are coated with the wear-and corrosion-resistant layer respectively with on the end face that medium in the step-down ball valve of flowing through contacts, and namely the internal chamber wall of the inwall of the total inner surface of the whole outer spherical surface of V-type spheroid 5, valve seat 4, runner 15 and valve body 1 all is coated with the wear-and corrosion-resistant layer.Wherein, the material of wear-and corrosion-resistant layer is stupalith, and preferably adopting stupalith is aluminium oxide or chromium oxide.
The production technology of above-mentioned high pressure high temperature vapor step-down ball valve, when processing V-type spheroid 5, cut out the V-type mouth with reaching the standard grade at this spheroid again behind spheroid of forging processing formation earlier, after 5 moulding of V-type spheroid, all be coated with one deck wear-and corrosion-resistant layer respectively with on the end face that medium in the step-down ball valve of flowing through contacts at valve body 1, valve seat 4 and the spheroid 5 of step-down ball valve respectively, and then respectively the fitting surface of V-type spheroid 5 with valve seat 4 ground, to grinding V-type spheroid 5 and valve seat 4 are sealed and matched firmly V-type spheroid 5 and valve seat 4 assembling backs more at last.The coating of wear-and corrosion-resistant layer for adopt plasma spray coating process with aluminium oxide or chromia spray valve body 1, valve seat 4 and the spheroid 5 of step-down ball valve respectively with end face that medium in the step-down ball valve of flowing through contacts on.
High pressure high temperature vapor step-down ball valve related detailed processing technology step in course of working is as follows:
(1) processing of V-type spheroid 5, concrete steps are:
1, clamps blank, press spheroid runner hole centering, processing flow channel hole, the conical surface, fillet; 2, serve as the location benchmark with the spheroid runner after the processing, mill the processing spheroid, the spheroid degree of finish after the fine finishing is not less than Ra1.6, and coaxality is less than 0.05, and the garden degree is not less than 0.01;
3, the spheroid clamping after will processing uses special-purpose concave ball shape grinding tool to use the processing of 60# monocrystalline fused alumina mill on special fixture, and surface finishment is not less than Ra0.08, and coaxality is less than 0.03, and the garden degree is not less than 0.006;
4, line cuts out the spheroid of V-type;
5, outer surface of spheroid and runner are ceramic coated, and coating thickness is 0.5mm, and hardness is HRC80;
6, on the spheroid clamping special fixture after the spraying, use the processing of special-purpose concave ball shape grinding tool, degree of finish is not less than Ra3.2, and coaxality is 0.03, and the garden degree is not less than 0.006,
1. corase grind, bortz powder are that M40, corase grind back degree of finish are not less than Ra0.8, coaxality less than 0.03, the garden degree is not less than 0.004,
2. finish grind, bortz powder is M15, and correct grinding back degree of finish is not less than Ra0.2-0.4, and coaxality is less than 0.03, and the garden degree is not less than 0.004;
7, grind, the spheroid that processes and special-purpose concave ball shape grinding tool are to grinding, and abrasive powder is respectively M15, M5, and the garden degree is not less than 0.0025.(2) processing of valve seat 4, concrete steps are:
1, the coaxality in processing valve seat sphere and outer garden is less than 0.03;
2, the valve seat sphere is ceramic coated, and coating thickness is 0.5mm, and hardness is HRC80;
3, the valve seat clamping after the spraying uses on the special-purpose protruding spherical grinding tool and processes grinding on the special device anchor clamps:
1. roughing, abrasive material is the M40 bortz powder, degree of finish is not less than Ra0.8,
2. fine finishing, abrasive material is the M15 bortz powder, degree of finish is not less than Ra0.4;
4, grind: the valve seat that processes and special-purpose protruding spherical grinding tool are to grinding, and abrasive powder is M15, M5, and degree of finish is Ra0.2--0.4.(3) 4 pairs of V-type spheroid 5 and valve seats grind, and concrete steps are:
1, V-type spheroid 5 and valve seat 4 spheres that process are carried out 2-3 time manually to grinding, the lapping liquid of use is as follows successively:
1. use the M40 diamond paste, the configuration lapping liquid, lapping liquid is: glycerine+water, lapping liquid proportioning are 1: 1,
2. with M10 diamond paste configuration lapping liquid, proportioning is grease 22.4%, mixes fat 31.5%, kerosene 1.1%,
3. put lapping liquid with M5 diamond paste bedding-in, proportioning is grease 22.4%, mixes fat 31.5%, kerosene 1.1%;
2, after the grinding, with cleaning solution or 90# gasoline V-type spheroid 5 and valve seat 4 were cleaned 10-15 minute.
As mentioned above, then can well realize the present invention.
Claims (9)
1. high pressure high temperature vapor step-down ball valve, it is characterized in that: comprise valve body (1), V-type spheroid (5) and the left body (2) that is connected with valve body (1), valve body (1) constitutes the spheroid chamber with left body (2), valve body (1) is provided with the outlet (14) of connecting the spheroid chamber, left side body (2) is provided with import (12) and connects the inner chamber in import (12) and spheroid chamber, be provided with first step down transformer (10) in the inner chamber of described left body (2), and be provided with the valve seat (4) that is connected with left body (2) between the inner chamber of left body (2) and the spheroid chamber, described V-type spheroid (5) is arranged in the spheroid chamber and is sealed and matched firmly with valve seat (4) and contacts; Described V-type spheroid (5) two ends up and down is connected with upper valve rod (11) and the lower valve rod (3) that passes valve body (1) respectively, be provided with in the V-type spheroid (5) V-type spheroid (5) relatively during valve seat (4) rotation import (12) with export the runner (15) that (14) are communicated with or disconnect; Described valve body (1), left body (2), valve seat (4), spheroid (5), upper valve rod (11) and lower valve rod (3) are made by metallic material, and the valve body of described step-down ball valve (1), valve seat (4) and spheroid (5) all are coated with the wear-and corrosion-resistant layer respectively with on the end face that medium in the step-down ball valve of flowing through contacts.
2. high pressure high temperature vapor step-down ball valve according to claim 1, it is characterized in that: the material of described wear-and corrosion-resistant layer is stupalith.
3. high pressure high temperature vapor step-down ball valve according to claim 2, it is characterized in that: the stupalith of described wear-and corrosion-resistant layer is aluminium oxide or chromium oxide.
4. high pressure high temperature vapor step-down ball valve according to claim 1 is characterized in that: be provided with the inner chamber of connecting outlet (14) and spheroid chamber in the described valve body (1), and be provided with second step down transformer (13) in the inner chamber of valve body (1).
5. high pressure high temperature vapor step-down ball valve according to claim 4, it is characterized in that: described first step down transformer (10) and second step down transformer (13) are made by stupalith.
6. according to claim 4 or 5 described high pressure high temperature vapor step-down ball valves, it is characterized in that: described first step down transformer (10) and both sidewalls of second step down transformer (13) all constitute the structure with multilayer sleeve, and every layer of sleeve is provided with the through hole that a plurality of pore sizes are different and entanglement arranges.
7. high pressure high temperature vapor step-down ball valve according to claim 1, it is characterized in that: the upper end of described upper valve rod (11) is connected with valve rod extension bar (7), and the upper end of described valve body (1) is connected with the valve rod that is set on upper valve rod (11) and the valve rod extension bar (7) and lengthens cover (6); Be provided with the first stuffing box packing layer (8) between described upper valve rod (11) and the valve body (1), described valve rod extension bar (7) and valve rod lengthen between the cover (6) and are provided with the second stuffing box packing layer (9).
8. the production technology of described any high pressure high temperature vapor step-down ball valve of claim 1～7, it is characterized in that: when processing V-type spheroid (5), cut out the V-type mouth with reaching the standard grade at this spheroid again behind spheroid of forging processing formation earlier, after V-type spheroid (5) moulding, respectively at the valve body (1) of step-down ball valve, valve seat (4) and spheroid (5) all are coated with one deck wear-and corrosion-resistant layer respectively with on the end face that medium in the step-down ball valve of flowing through contacts, and then respectively the fitting surface of V-type spheroid (5) with valve seat (4) ground, to grinding V-type spheroid (5) and valve seat (4) are sealed and matched firmly V-type spheroid (5) and valve seat (4) assembling back more at last.
9. the production technology of high pressure high temperature vapor step-down ball valve according to claim 8 is characterized in that: the coating of described wear-and corrosion-resistant layer for adopt plasma spray coating process with aluminium oxide or chromia spray valve body (1), valve seat (4) and the spheroid (5) of step-down ball valve respectively with end face that medium in the step-down ball valve of flowing through contacts on.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110395101XA CN102425682B (en) | 2011-12-02 | 2011-12-02 | High-temperature and high-pressure steam pressure reducing ball valve and production technology thereof |
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| CN201110395101XA CN102425682B (en) | 2011-12-02 | 2011-12-02 | High-temperature and high-pressure steam pressure reducing ball valve and production technology thereof |
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| CN102425682B true CN102425682B (en) | 2013-10-09 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105508645B (en) * | 2015-12-31 | 2018-07-06 | 宁波丰基特种阀门有限公司 | Ball valve assembly |
| CN106122507B (en) * | 2016-08-16 | 2024-02-20 | 航天长征化学工程股份有限公司 | Cavitation-resistant ball valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5215121A (en) * | 1991-01-16 | 1993-06-01 | Prufer | Tube separator |
| CN201028036Y (en) * | 2007-04-24 | 2008-02-27 | 无锡卓尔阀业有限公司 | Metal hard sealing V-shaped self-control regulating valve |
| CN201232767Y (en) * | 2007-07-10 | 2009-05-06 | Kmc株式会社 | Integral pressure reducing ball-valve |
| CN201723762U (en) * | 2010-05-11 | 2011-01-26 | 河北宏业永泰流体机械股份有限公司 | V-shaped elastic hard sealed ball valve |
| CN102022561A (en) * | 2009-09-10 | 2011-04-20 | 江南阀门有限公司 | Depressurization-type metallic seal ball valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020096210A1 (en) * | 2001-01-22 | 2002-07-25 | Paul Schwarz | Safety valve and safety valve system |
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2011
- 2011-12-02 CN CN201110395101XA patent/CN102425682B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5215121A (en) * | 1991-01-16 | 1993-06-01 | Prufer | Tube separator |
| CN201028036Y (en) * | 2007-04-24 | 2008-02-27 | 无锡卓尔阀业有限公司 | Metal hard sealing V-shaped self-control regulating valve |
| CN201232767Y (en) * | 2007-07-10 | 2009-05-06 | Kmc株式会社 | Integral pressure reducing ball-valve |
| CN102022561A (en) * | 2009-09-10 | 2011-04-20 | 江南阀门有限公司 | Depressurization-type metallic seal ball valve |
| CN201723762U (en) * | 2010-05-11 | 2011-01-26 | 河北宏业永泰流体机械股份有限公司 | V-shaped elastic hard sealed ball valve |
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