CN105156688B - BDO High Pressure Difference control valve for small flows - Google Patents
BDO High Pressure Difference control valve for small flows Download PDFInfo
- Publication number
- CN105156688B CN105156688B CN201510511010.6A CN201510511010A CN105156688B CN 105156688 B CN105156688 B CN 105156688B CN 201510511010 A CN201510511010 A CN 201510511010A CN 105156688 B CN105156688 B CN 105156688B
- Authority
- CN
- China
- Prior art keywords
- valve
- filler
- core body
- valve element
- multisection type
- 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.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/44—Details of seats or valve members of double-seat valves
- F16K1/443—Details of seats or valve members of double-seat valves the seats being in series
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K25/00—Details relating to contact between valve members and seat
- F16K25/005—Particular materials for seats or closure elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/04—Means in valves for absorbing fluid energy for decreasing pressure or noise level, the throttle being incorporated in the closure member
- F16K47/06—Means in valves for absorbing fluid energy for decreasing pressure or noise level, the throttle being incorporated in the closure member with a throttle in the form of a helical channel
Abstract
The present invention relates to BDO High Pressure Difference control valve for small flows, one end of bonnet and valve body are affixed, valve seat is arranged on the inside of valve body, one end of valve element is through installation bonnet and stretches into valve inner and the cooperation of valve seat gap, valve element by the first core body, multisection type valve element and screw thread valve element it is coaxially connected formed one, in in valve body, coordinate multisection type sleeve in the periphery of multisection type valve element also gap；In the also affixed gland of the other end of bonnet, dynamic disc spring stop collar is installed between filler hex nut and gland, in dynamic disc spring stop collar, in filler with also installing multi-disc butterfly spring between hex nut and gland.The present invention is by being threaded valve element, multisection type sleeve and multisection type valve element, liquid medium is set to realize multiple impact in the regulating valve, the regulating valve is realized stable regulation performance and longer service life under High Pressure Difference, the operating mode of low discharge, fill up domestic and international High Pressure Difference, the application blank of control valve for small flows.
Description
Technical field
The present invention relates to valve field, more particularly to BDO High Pressure Difference control valve for small flows.
Background technology
BDO is butanediol, and it is as a kind of especially important Organic Chemicals and fine chemical material, in petrochemical industry
It is widely used in production, either engineering plastics or fiber, or even field of solvents are required to be related to BDO.At present, in production
Waste liquid can be produced in BDO, the waste liquid needs accurate control, due to pressure difference height (highest pressure difference at this：29.4MPaG), flow is controlled
Smaller, normal control flow amount 230KG/H only has 0.0156 by the minimum of computation CV values for calculating valve, therefore for valve
Technical requirements are high, and the conventional valve is monopolized by external producer always, external product price valency height and the clothes in delivery date and later stage
Business is difficult to meet produce reality demand, and most importantly external life of product is basic is using 1 month, and 1 week or so sometimes just
There is the interior leakage of valve, cause device to stop, therefore the quality of above-mentioned valve has a strong impact on BDO yield, so in the urgent need to
It is related to BDO High Pressure Difference control valve for small flows.
The content of the invention
The applicant is directed to above-mentioned existing issue, has carried out Improvement and has been adjusted there is provided a kind of BDO High Pressure Differences low discharge
Valve, liquid medium realizes multiple impact in the regulating valve, the regulating valve is realized under High Pressure Difference, the operating mode of low discharge surely
Fixed regulation performance and longer service life, have filled up domestic and international High Pressure Difference, the application blank of control valve for small flows.
The technical solution adopted in the present invention is as follows：
BDO High Pressure Difference control valve for small flows, one end of bonnet by bonnet hex nut and bonnet studs with
Valve body is affixed, and valve seat is arranged on the inside of the valve body, and one end of valve element runs through installation bonnet and stretches into valve inner and valve seat
Gap coordinates, and valve element is by the first core body, multisection type valve element and screw thread valve element is coaxially connected forms integral, in valve body, in multistage
The periphery of formula valve element also gap coordinates multisection type sleeve；In also installing filler assembly in bonnet, at the periphery of the first core body；In
The other end of bonnet is also by filler hex nut and the filler affixed gland of studs, in filler hex nut
Dynamic disc spring stop collar is installed between gland, in dynamic disc spring stop collar, in filler hex nut and filler pressure
Multi-disc butterfly spring is also installed between lid.
Its further technical scheme is：
The multisection type valve element includes the second core body, and along the circumferential direction stretch out shape in the periphery of second core body
Into the first flange, the first flange arrangement is multiple and is arranged at intervals at each other on the second core body, second core body and the first flange
Concentric and coaxially arranged；
The diameter of first flange is more than the diameter of the second core body；
The screw thread valve element includes the 3rd core body coordinated with valve seat gap, circumferentially square in the periphery of the 3rd core body
To left hand thread runner and right-handed thread runner is opened up, the left hand thread runner and right-handed thread runner are with the 3rd core body
Axle center centered on symmetrically open up；
The left hand thread runner is described in opposite direction around being opened in same start position with right-handed thread runner
The periphery of 3rd core body, periphery of the left hand thread runner with right-handed thread runner along the 3rd core body is formed from top to bottom
Multiple cross-point A positioned opposite each other；The flow channel depth of the left hand thread runner and right-handed thread runner is in from top to bottom
It is incremented by；
The multisection type sleeve includes inner sleeve and outer sleeve, by positioning finger setting between the inner sleeve and outer sleeve
Connection, multiple windows are opened up along the periphery of the inner sleeve from top to bottom；
Fit clearance between the screw thread valve element and valve seat and the multisection type valve element and multisection type sleeve is not more than
0.01mm；
The filler assembly includes multigroup filler, filler spacer is set in filler, the bottom positioned at foot filler is set
Matrix liner is put, filler pressing sleeve, the filler pressing sleeve, filler, filler spacer and filler are set positioned at the top of topmost filler
Precipitation is respectively positioned between the outer wall of the inwall of bonnet and the first core body；
The second flange for coordinating valve body for gap is also set up in the junction of second core body and the first core body；
Valve washer, the screw thread valve element, multisection type valve element and first are also set up in the junction of the valve body and valve seat
Core body is made of hard alloy STL12, and the valve seat is made of stainless steel built-up welding STL12, and the multisection type sleeve is adopted
It is made of Inconel718 materials.
Beneficial effects of the present invention are as follows：
(1) screw thread valve element makes liquid medium by left-handed by left hand thread runner and right-handed thread runner interlaced arrangement
Multiple high-speed impact is formed during the cross-point of screw thread runner and right-handed thread runner, often hits and is once equivalent to that original fan is lost
The flow channel depth of 4 times of palace formula chip corners shock, left hand thread runner and right-handed thread runner is in gradually to be incremented by from top to bottom,
And the thread pitch of left hand thread runner and right-handed thread runner can also be arbitrarily devised, according to actual controllable magnitude of pressure differential,
The different valve seat thickness of design, so as to obtain the different shock number of times of the liquid medium in valve seat, completely organizes the tune of different High Pressure Differences
Program, flow channel depth can incrementally control the negotiability under different opening, so as to control low discharge.
(2) multisection type sleeve can control different low discharge medium requirements, multistage with the combination arrangement of multisection type valve element
The window of formula sleeve is designed to smaller width according to requirement is calculated, and according to practical condition design window quantity, liquid is situated between
Matter turning number of times in flow process is increasedd or decreased, and effectively meets more than 400bar differential pressure requirements.
(3) between the cooperation between fit clearance, multisection type valve element and multisection type sleeve between screw thread valve element and valve seat
Gap, is strict controlled within 0.01mm, and finish is better than Ra1.6, so that it is guaranteed that the requirement of High Pressure Difference low discharge.
(4) valve element integrally uses hard alloy STL12, and valve seat is used using stainless steel built-up welding STL12, multisection type sleeve
The materials of Inconel 718, highest hardness can reach HRC48, meet washing away for High Pressure Difference medium, so as to extend the use of valve
Life-span.
(5) filler takes one disc spring stop collar of setting under dynamic seal structure, stuffing nut, on the one hand ensure that butterfly
Compensating action of the shape spring in dynamic sealing, the setting of another aspect stop collar make it that butterfly spring decrement is controlled
System, the compression limit not over 75%, preventing butterfly spring to be chronically under limited compression state causes butterfly spring to deform
The phenomenon of failure occurs, it is ensured that the sealing effectiveness of filler part under super-pressure.
Brief description of the drawings
Fig. 1 is overall structure diagram of the invention.
Fig. 2 has the schematic diagram of a left hand thread runner for Thread valve core ribbon in the present invention.
Fig. 3 is the structural representation of screw thread valve element in the present invention.
Fig. 4 flows to schematic diagram for liquid medium in the present invention in multisection type valve element, screw thread valve element and multisection type sleeve.
Wherein：1st, valve body；2nd, screw thread valve element；201st, left hand thread runner；202nd, right-handed thread runner；3rd, valve washer；
4th, valve seat；5th, inner sleeve；6th, outer sleeve；7th, window；8th, alignment pin；9th, bonnet；901st, bonnet hex nut；902nd, bonnet is used
Studs；10th, matrix liner；11st, filler spacer；12nd, filler；13rd, filler pressing sleeve；14th, gland；15th, butterfly spring；
16th, dynamic disc spring stop collar；17th, filler hex nut；18th, filler studs；19th, multisection type valve element；1901st, first
Flange；20th, the first core body；21st, the second flange；22nd, the second core body；23rd, the 3rd core body.
Embodiment
Below in conjunction with the accompanying drawings, the embodiment of the present invention is illustrated.
As shown in figure 1, BDO High Pressure Difference control valve for small flows, including bonnet 9, one end of bonnet 9 passes through bonnet hexagonal
Nut 901 and bonnet are affixed with studs 902 and valve body 1, and valve seat 4 is arranged on the inside of valve body 1, and one end of valve element is through peace
Dress bonnet 9 simultaneously stretches into the inside of valve body 1 and the cooperation of the gap of valve seat 4, and valve element is by the first core body 20, multisection type valve element 19 and Thread valve
Core 2 is coaxially connected to form one, in valve body 1, coordinates multisection type sleeve in the periphery of multisection type valve element 19 also gap；In bonnet
Filler assembly is also installed in 9, at the periphery of the first core body 20, as shown in figure 1, filler assembly includes multigroup filler 12, filled out
Filler spacer 11 is set in material 12, matrix liner 10 is set positioned at the bottom of foot filler 12, positioned at topmost filler 12
Top sets filler pressing sleeve 13, and filler pressing sleeve 13, filler 12, filler spacer 11 and filler precipitation 10 are respectively positioned on the inwall of bonnet 9
Between the outer wall of the first core body 20.In bonnet 9 the other end also by filler with hex nut 17 and filler studs
18 affixed glands 14, in filler with dynamic disc spring stop collar 16 is installed between hex nut 17 and gland 14, in dynamic
In state disc spring stop collar 16, with multi-disc butterfly spring 15 is also installed between hex nut 17 and gland 14, it is somebody's turn to do in filler
Dynamic sealing when dynamic disc spring stop collar 16 can ensure that pressure medium floats with the one side of butterfly spring 15, it is on the other hand dynamic
The use of state disc spring stop collar 16 may insure the compression control of spring in elastic range, it is to avoid the decrement mistake of butterfly spring 15
The failure phenomenon of butterfly spring 15 caused by big, so as to ensure the high pressure sealing at filler.
As shown in figure 1, above-mentioned multisection type valve element 19 includes the second core body 22, in the periphery of the second core body 22 along the circumferential direction
Stretch out to form the first flange 1901, the first flange 1901 is arranged multiple and is arranged at intervals at each other on the second core body 22, the
Two core bodys 22 and the concentric of the first flange 1901 and coaxially arranged, the diameter of above-mentioned first flange 1901 is more than the second core body 22
Diameter.
As shown in Figure 1, Figure 2 and Figure 3, screw thread valve element 2 includes the 3rd core body 23 coordinated with the gap of valve seat 4, in the 3rd core
The periphery of body 23 along the circumferential direction opens up left hand thread runner 201 and right-handed thread runner 202, left hand thread runner 201 and the right side
Rotation screw thread runner 202 is symmetrically opened up centered on the axle center of the 3rd core body 23.Left hand thread runner 201 and right-handed thread runner
202 in the same start position periphery for being opened in the 3rd core body 23 circular in opposite direction, left hand thread runner 201 and dextrorotation spiral shell
Periphery of the line runner 202 along the 3rd core body 23 forms multiple cross-point A positioned opposite each other from top to bottom；Left hand thread runner
201 with the flow channel depth of right-handed thread runner 202 from top to bottom in being incremented by, by by left hand thread runner 201 and right-handed thread
The flow channel depth of runner 202 is designed as being incremented by, and can control the valve opening under different negotiabilities, realize under operating mode flow
Most reasonable aperture, make valve event steadily reliable, it is to avoid to be worked under low aperture.
As shown in Fig. 1 and Fig. 4, multisection type sleeve includes inner sleeve 5 and outer sleeve 6, leads between inner sleeve 5 and outer sleeve 6
Cross alignment pin 8 to be located by connecting, multiple windows 7 are opened up from top to bottom along the periphery of inner sleeve 5.
As shown in figure 1, the cooperation between above-mentioned screw thread valve element 2 and valve seat 4 and multisection type valve element 19 and multisection type sleeve
Gap is not more than 0.01mm, and finish is better than Ra1.6.Use is also set up in the junction of the above-mentioned core body 20 of second core body 22 and first
Coordinate the second flange 21 of valve body 1 in gap.Valve washer 3 is also set up in the junction of valve body 1 and valve seat 4, screw thread valve element 2,
The core body 20 of multisection type valve element 19 and first is made of hard alloy STL12, and valve seat 4 is made of stainless steel built-up welding STL12,
Multisection type sleeve is made of Inconel718 materials (the precipitation hardenable nichrome containing niobium, molybdenum), and its highest hardness can
Up to HRC48.
The specific work process of the present invention is as follows：
As Figure 1 and Figure 4, the liquid medium runner on multisection type sleeve mouthful enters and contacted with multisection type valve element 19,
Because the window 7 opened up on the first flange 1901 and multisection type sleeve arranged on multisection type valve element 19 is so that the stream of liquid medium
To being bent in flow process and forming 4 turnings, as shown in figure 4, liquid medium is by a flange of window 7 and first
4 turnings are formed after 1901, the window is designed to smaller width according to requirement is calculated, so as to control different low discharge media will
Ask, the flange 1901 of window 7 and first is designed as 4 in this implementation clever, pass through multisection type sleeve and multisection type valve in liquid medium
16 turnings are formed during core 19 altogether, shown as shown in Figure 2, Figure 3 and Figure 4 subsequently into screw thread valve element 2, liquid medium formation two-way point
Not Jin Ru left hand thread runner 201 and right-handed thread runner 202, two strands of liquid mediums enter left hand thread runner 201 and the right side
High-speed impact is continuously formed during the cross-point A of rotation screw thread runner 202, is then proceeded to along left hand thread runner 201 and right-handed thread
Runner 202 advances, until entering next cross-point A, two strands of liquid mediums are respectively along the left hand thread runner of the 3rd core body 23
201 and right-handed thread runner 202 carry out multiple impact after, outflow valve seat 4 flow to after valve, liquid medium pass through above-mentioned left hand thread
Turning number of times can meet more than 400bar pressure equivalent to increasing to 25~28 times after runner 201 and right-handed thread runner 202
Difference is required.Liquid medium is high after the multiple intersection of above multisection type sleeve, multisection type valve element 19 and screw thread valve element 2 is hit
The pressure difference and energy of pressure difference liquid medium are consumed significantly, so that valve can bear High Pressure Difference impact.
Above description is explanation of the invention, is not the restriction to invention, limited range of the present invention is referring to right
It is required that, in the case of the basic structure without prejudice to the present invention, the present invention can make any type of modification.
Claims (6)
1.BDO High Pressure Difference control valve for small flows, bonnet（9）One end pass through bonnet hex nut（901）And bonnet double end
Stud（902）With valve body（1）It is affixed, valve seat（4）Installed in the valve body（1）Inside, it is characterised in that：One end of valve element is passed through
Wear installation bonnet（9）And stretch into valve body（1）Internal and valve seat（4）Gap coordinates, and the valve element is by the first core body（20）, multistage
Formula valve element（19）And screw thread valve element（2）It is coaxially connected to form one, in the valve body（1）It is interior, in multisection type valve element（19）It is outer
Go back gap in week and coordinate multisection type sleeve；In the bonnet（9）It is interior, in first core body（20）Periphery at filler group is also installed
Part；In the bonnet（9）The other end also pass through filler hex nut（17）And filler studs（18）Affixed filler
Gland（14）, in the filler hex nut（17）With gland（14）Between dynamic disc spring stop collar is installed（16）, in
The dynamic disc spring stop collar（16）It is interior, in the filler hex nut（17）With gland（14）Between multi-disc is also installed
Butterfly spring（15）；
The multisection type valve element（19）Including the second core body（22）, in second core body（22）Periphery it is along the circumferential direction outside
Extension forms the first flange（1901）, the first flange（1901）Arrangement is multiple and is arranged at intervals at the second core body each other（22）On,
Second core body（22）With the first flange（1901）Concentric and coaxially arranged；First flange（1901）Diameter be more than
Second core body（22）Diameter；
The screw thread valve element（2）Including with valve seat（4）The 3rd core body that gap coordinates（23）, in the 3rd core body（23）It is outer
Week along the circumferential direction opens up left hand thread runner（201）And right-handed thread runner（202）, the left hand thread runner（201）And
Right-handed thread runner（202）With the 3rd core body（23）Axle center centered on symmetrically open up；The left hand thread runner（201）
With right-handed thread runner（202）It is surround in opposite direction in same start position and is opened in the 3rd core body（23）Periphery,
The left hand thread runner（201）With right-handed thread runner（202）Along the 3rd core body（23）Periphery formed from top to bottom
Multiple cross-point A positioned opposite each other；The left hand thread runner（201）With right-handed thread runner（202）Flow channel depth
From top to bottom in incremental.
2. BDO High Pressure Differences control valve for small flows as claimed in claim 1, it is characterised in that：The multisection type sleeve includes interior
Sleeve（5）And outer sleeve（6）, the inner sleeve（5）And outer sleeve（6）Between pass through alignment pin（8）It is located by connecting, along described interior
Sleeve（5）Periphery open up multiple windows from top to bottom（7）.
3. BDO High Pressure Differences control valve for small flows as claimed in claim 1, it is characterised in that：The screw thread valve element（2）With valve seat
（4）And the multisection type valve element（19）Fit clearance between multisection type sleeve is not more than 0.01mm.
4. BDO High Pressure Differences control valve for small flows as claimed in claim 1, it is characterised in that：The filler assembly includes multigroup
Filler（12）, in filler（12）Interior setting filler spacer（11）, positioned at foot filler（12）Bottom set matrix liner
（10）, positioned at topmost filler（12）Top set filler pressing sleeve（13）, the filler pressing sleeve（13）, filler（12）, filler
Spacer（11）And matrix liner（10）It is respectively positioned on bonnet（9）Inwall and the first core body（20）Outer wall between.
5. BDO High Pressure Differences control valve for small flows as claimed in claim 2, it is characterised in that：In second core body（22）With
First core body（20）Junction also set up for gap coordinate valve body（1）The second flange（21）.
6. BDO High Pressure Differences control valve for small flows as claimed in claim 1, it is characterised in that：In the valve body（1）With valve seat
（4）Junction also set up valve washer（3）, the screw thread valve element（2）, multisection type valve element（19）And first core body（20）Adopt
It is made of hard alloy STL12, the valve seat（4）It is made of stainless steel built-up welding STL12, the multisection type sleeve is used
Inconel718 materials are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510511010.6A CN105156688B (en) | 2015-08-19 | 2015-08-19 | BDO High Pressure Difference control valve for small flows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510511010.6A CN105156688B (en) | 2015-08-19 | 2015-08-19 | BDO High Pressure Difference control valve for small flows |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105156688A CN105156688A (en) | 2015-12-16 |
| CN105156688B true CN105156688B (en) | 2017-08-15 |
Family
ID=54797659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510511010.6A Expired - Fee Related CN105156688B (en) | 2015-08-19 | 2015-08-19 | BDO High Pressure Difference control valve for small flows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105156688B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091368A (en) * | 2017-06-01 | 2017-08-25 | 李元兵 | Dropping valve with multilevel decompression valve element |
| CN110220044A (en) * | 2019-06-24 | 2019-09-10 | 吴忠仪表工程技术服务有限公司 | Double rotational directions multispiral staggered form valve core structure |
| CN110645405A (en) * | 2019-09-20 | 2020-01-03 | 苏州赛米流体控制技术有限公司 | Quiet type flow control valve |
| CN117481650B (en) * | 2024-01-02 | 2024-03-19 | 德州市红拳医疗器械有限公司 | Animal hemostix |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4239767A1 (en) * | 1992-03-03 | 1993-09-16 | Hannemann Reglerbau | Valve arrangement for pressure setting of steam row - has valve cone with grooved overflow channels of opposing thread directions which intersect and increase in depth |
| CN201687952U (en) * | 2010-04-13 | 2010-12-29 | 无锡市亚迪流体控制技术有限公司 | Anti-particle high pressure differential angle valve |
| CN202349235U (en) * | 2011-09-28 | 2012-07-25 | 河南航天压力元件有限公司 | Adjusting valve rod and adjusting valve with same |
| CN203627964U (en) * | 2013-11-20 | 2014-06-04 | 无锡智能自控工程股份有限公司 | High-pressure micro-flow string type regulating valve |
| CN204267762U (en) * | 2014-11-04 | 2015-04-15 | 无锡市亚迪流体控制技术有限公司 | High Pressure Difference high-flow adjustable ratio control valve |
| CN204533549U (en) * | 2015-02-10 | 2015-08-05 | 无锡智能自控工程股份有限公司 | Hydrocracking hot high score high-pressure regulation angle valve |
| CN205013694U (en) * | 2015-08-19 | 2016-02-03 | 赛鼎工程有限公司 | Poor little flow control valve of BDO high pressure |
-
2015
- 2015-08-19 CN CN201510511010.6A patent/CN105156688B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN105156688A (en) | 2015-12-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105156688B (en) | BDO High Pressure Difference control valve for small flows | |
| CN104358885A (en) | High-pressure difference and high-flow rate adjustable ratio control valve | |
| CN101504078B (en) | Screw-in forged high pressure cage type balanced regulation cut-off corner valve | |
| CN201348050Y (en) | Venturi ceramic corniform valve | |
| CN204267762U (en) | High Pressure Difference high-flow adjustable ratio control valve | |
| CN205013694U (en) | Poor little flow control valve of BDO high pressure | |
| CN207961624U (en) | T-type three-way ball valve | |
| CN207246509U (en) | A kind of feed pipe end connecting device | |
| CN206874954U (en) | Bellows regulating valve | |
| CN208252810U (en) | A kind of cam flexure regulating valve suitable for High Pressure Difference operating condition containing solid particle | |
| CN201121729Y (en) | Tank bottom discharge valve | |
| CN208123492U (en) | A kind of ceramic valve plate | |
| CN206972934U (en) | A kind of gate valve for being easy to maintenance and installation | |
| CN207921344U (en) | A kind of membrane separation plant plunger valve | |
| CN207049345U (en) | Fluorine-lined flange, to pressing from both sides dual-purpose butterfly valve | |
| CN217683518U (en) | Stop valve for engineering water supply pipeline | |
| CN206290753U (en) | A kind of valving with corrosion proof function | |
| CN206159500U (en) | Straight angle formula angle valve | |
| CN206257324U (en) | A kind of valve for pressure difference | |
| CN219570861U (en) | Special angular corrugated pipe sealing single-seat control valve | |
| CN205001554U (en) | Ball valve | |
| CN208295268U (en) | A kind of dual-seal rotary cut-off valve | |
| CN207961575U (en) | A kind of oil-drain pipe control valve with heating device | |
| CN220227863U (en) | Butterfly valve capable of preventing sealing rubber ring from shifting | |
| CN206190921U (en) | Flow control valve of gradable regulation and control |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170815 Termination date: 20200819 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |