CN105736711A - Novel external control type hydraulic circulating valve - Google Patents
Novel external control type hydraulic circulating valve Download PDFInfo
- Publication number
- CN105736711A CN105736711A CN201610238707.5A CN201610238707A CN105736711A CN 105736711 A CN105736711 A CN 105736711A CN 201610238707 A CN201610238707 A CN 201610238707A CN 105736711 A CN105736711 A CN 105736711A
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- Prior art keywords
- valve
- oilhole
- sleeve
- diameter
- axis
- 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.)
- Granted
Links
- 230000004087 circulation Effects 0.000 claims description 23
- 239000007788 liquid Substances 0.000 abstract description 12
- 238000007789 sealing Methods 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 16
- 238000005242 forging Methods 0.000 description 8
- 239000003921 oil Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 230000017531 blood circulation Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- 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
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- 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
- F16K1/36—Valve members
- F16K1/38—Valve members of conical shape
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Safety Valves (AREA)
Abstract
The invention provides a novel external control type hydraulic circulating valve. The novel external control type hydraulic circulating valve comprises a hollow valve body; a cylindrical valve base is arranged on a base of the valve body; the valve base is fixedly connected with a cylindrical sleeve; multiple oil holes are uniformly distributed in the side wall of the sleeve; the side wall of the valve body is fixedly connected with a side pipe; one end, far from a shell, of the side pipe is fixedly connected with a flange; an annular valve cover is mounted on the top surface of the valve body; a cylindrical valve sleeve is vertically arranged in an inner hole of the valve cover; the inner hole of the valve sleeve consists of three step holes; a T-shaped valve element reversely positioned and capable of performing a reciprocating motion up and down along self axis is arranged in the inner hole with the smallest diameter; a piston is mounted at the upper end of the valve element; an upper cavity and a lower cavity not communicated with each other are formed in the valve sleeve; an end cover is provided with an overflow valve and a runner respectively communicated with the two cavities; and a pressure sensor is mounted on the valve cover. The hydraulic circulating valve is excellent in sealing performance, is free of an opening dead area of the valve element, capable of being used for high-flow working condition, stable in external control of oil liquid pressure, sensitive in response and continuous and adjustable in flow parameters, and has the advantages of small size and light weight.
Description
Technical field
The invention belongs to hydraulic component technical field, relate to a kind of circulating valve for style hydraulic forging press, be specifically related to a kind of Novel external-control type hydraulic circulation valve.
Background technology
Speed forging hydraulic press groups hydraulic system provides hydraulic control power source for main frame, by the control of hydraulic system realizes the motion of main frame.Whole devices mainly include main pump system, blood circulation, high pressure unloading system, control system, high-pressure system and aid system, wherein blood circulation is made up of main fuel tank, circulating cooling pump, plate type heat exchanger, heater, filter, pressure-loaded prefilling tank, circulating valve, fluid pressure line etc., effect provides hydraulic oil sufficient, clean, best oil temperature to main pump, circulating valve Main Function is the liquid level controlling pressure-loaded prefilling tank, the fluid making pressure-loaded prefilling tank and main fuel tank realizes circulation, it is ensured that pressure-loaded prefilling tank liquid level circulates between high workload liquid level and low work liquid level.
Currently used circulating valve allotter, is mainly made up of cover board type two-way cartridge inserted valve, solenoid directional control valve, overflow valve and choke valve.Overflow valve passes through setup pressure value, and pressure-loaded prefilling tank plays safeguard protection effect；Control cover plate is check valve assembly, controls the built-in throttling plug screw of cover plate, and to regulate fluid liquid resistent value, control mode is internal control type；Choke valve is used for regulating the cover board type two-way cartridge inserted valve opening time.This kind of structure is owing to being affected by the fluctuation of pressure-loaded prefilling tank oil liquid pressure and throttling plug screw pore size, and it is slow and close wild effect that circulating valve allotter exists the shut-in time, thus affecting whole speed forging hydraulic press groups hydraulic system stability.
Summary of the invention
It is an object of the invention to provide a kind of Novel external-control type hydraulic circulation valve, close fast and stable, it is possible to ensure that whole speed forging hydraulic press groups hydraulic system is stable.
For achieving the above object, the technical solution adopted in the present invention is: a kind of Novel external-control type hydraulic circulation valve, valve body including hollow, the base of valve body is provided with the valve seat of tubular, valve seat is connected with the sleeve of tubular, being provided with two outage groups on the sidewall of sleeve from top to bottom, this two outages group forms by the multiple oilholes along sleeve radial equipartition；Being connected with side pipe on the sidewall of valve body, one end of side pipe is connected with flange；Being provided with the valve gap of annular on valve body end face, be vertically provided with the valve pocket of tubular in the endoporus of valve gap, valve pocket lower end is stretched in sleeve, and valve pocket upper end is stretched out outside valve gap；The endoporus of valve pocket is three stepped holes, in this three stepped hole, diameter minimum aperture is towards base, the endoporus that valve pocket diameter is minimum is provided with the inverted "T"-shaped spool that can move back and forth up and down along own axes, the upper end of spool sequentially passes through the minimum endoporus of valve pocket diameter and the little endoporus of valve pocket diameter second, stretch in the endoporus that valve pocket diameter is maximum, spool upper end is provided with piston, the external diameter of piston is suitable with the diameter of the maximum endoporus of valve pocket diameter, valve pocket, piston and spool surround lower chamber, and sleeve side wall is provided with the 3rd runner connected with lower chamber；Valve pocket top is provided with end cap, and valve pocket, end cap and piston surround upper cavity, and upper cavity is not connected with lower chamber；End cap is provided with and the second runner of the 3rd flow passage, and end cap is additionally provided with the first flow connected with upper cavity；End cap is provided with overflow valve, valve gap is provided with pressure transducer.
Hydraulic circulation valve T-shape spool of the present invention, spool and valve seat are cone valve structure, good seal performance between spool and valve seat orifice, and spool is opened without dead band, can be used for big flow rate working conditions.And this hydraulic circulation valve adopts external control type structure, because adopting electro-hydraulic proportional valve and air relief valve in control system, controlling oil liquid pressure stable, circulating valve responds sensitive, flow parameter continuously adjustabe.There is volume advantage little, lightweight.
Accompanying drawing explanation
Fig. 1 is the structural representation of hydraulic circulation valve of the present invention.
Fig. 2 is the normal axomometric drawing of hydraulic circulation valve of the present invention.
Fig. 3 is the schematic diagram of valve body in hydraulic circulation valve of the present invention.
The schematic diagram of valve pocket in Fig. 4 hydraulic circulation valve of the present invention.
In figure: 1. valve body, 2. valve seat, 3. spool, 4. sleeve, 5. valve gap, 6. pressure transducer, 7. locking nut, 8. the first joint, 9. end cap, 10. first flow, 11. overflow valve, 12. second joints, 13. second runners, 14. upper cavities, 15. the 3rd runners, 16. nut, 17. valve pockets, 18. lower chambers, 19. pistons, 20. side pipes, 21. flange, 22. bases, 23. installing holes, 24. housings, 25. top board, 26. core bodys, 27. first oilholes, 28. second oilholes.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
As depicted in figs. 1 and 2, hydraulic circulation valve of the present invention, including structure valve body 1 as shown in Figure 3, valve body 1 includes the base 22 of annular, and the endoporus of base 22 is shoulder hole, and this shoulder hole is installing hole 23, base 22 is vertically connected with the housing 24 of tubular, housing 24 upper end is connected with the top board 25 of annular, and housing 24 sidewall is connected with the side pipe 20 of axis and housing 24 axis perpendicular, and side pipe 20 is connected with flange 21 away from one end of housing 24；Installing hole 23 is relatively large in diameter end towards top board 25, and installing hole 23 is relatively large in diameter in hole to be provided with the valve seat 2 of tubular, and valve seat 2 diameter of bore is suitable with diameter smaller hole diameter in installing hole 23；Base 22 is vertically connected with structure sleeve 4 as shown in Figure 4, sleeve 4 includes the core body 26 of tubular, core body 26 sidewall is provided with two oilhole groups from top to bottom, oilhole group above is made up of multiple first oilholes 27, multiple first oilholes 27 are radially distributed in core body 26 sidewall, the oilhole group being positioned below is made up of multiple second oilholes 28, and multiple second oilholes 28 are radially distributed in core body 26 sidewall；First oilhole 27 and the second oilhole about 28 are correspondingly arranged, the axis of the first oilhole 27 being correspondingly arranged and the axis of the second oilhole 28 are parallel, the axis of the first oilhole 27 and the axis of the second oilhole 28 are obliquely installed, angle between first oilhole 27 axis and the second oilhole 28 axis and horizontal plane is 45 ° ± 5 °, the height and position of the first oilhole 27 axis and core body 26 medial wall intersection point is lower than the height and position of the first oilhole 27 axis Yu core body 26 lateral wall intersection point, the height and position of the second oilhole 28 axis and core body 26 medial wall intersection point is lower than the height and position of the second oilhole 28 axis Yu core body 26 lateral wall intersection point；Core body 26 lower end is affixed with valve seat 2, sleeve 4 upper end is stretched in the endoporus of top board 25, the external diameter that sleeve 4 stretches into top board 25 bore section is suitable with top board 25 diameter of bore, and sleeve 4 stretches into the outer wall of top board 25 bore section and is provided with O RunddichtringO, top board 25 is provided with the valve gap 5 of annular, vertically being provided with the valve pocket 17 of tubular in the endoporus of valve gap 5, valve pocket 17 lower end is stretched in sleeve 4, and valve pocket 17 upper end is stretched out outside valve gap 5；The endoporus of valve pocket 17 is three stepped holes, and in this three stepped hole, diameter minimum aperture is towards base 22, is provided with inverted "T"-shaped spool 3 in the endoporus that valve pocket 17 diameter is minimum, and spool 3 can move back and forth up and down along own axes；The upper end of spool 3 sequentially passes through the minimum endoporus of valve pocket 17 diameter and the little endoporus of valve pocket 17 diameter second, stretch in the endoporus that valve pocket 17 diameter is maximum, the upper end of spool 3 is provided with piston 19, piston 19 is threadeded with spool 3, spool 3 top is provided with nut 16, nut 16 can prevent piston 19 from loosening, the external diameter of piston 19 is suitable with the diameter of the valve pocket 17 maximum endoporus of diameter, valve pocket 17, piston 19 and spool 3 surround lower chamber 18, and valve pocket 17 sidewall is provided with the 3rd runner 15 connected with lower chamber 18；Valve pocket 17 top is provided with end cap 9, and valve pocket 17, end cap 9 and piston 19 surround upper cavity 14, and upper cavity 14 is not connected with lower chamber 18；End cap 9 is provided with the second runner 13 connected with the 3rd runner 15, the runner mouth of the second runner 13 is provided with the second joint 12, end cap 9 is additionally provided with the first flow 10 of " L " shape, one end of first flow 10 connects with upper cavity 14, the other end of first flow 10 is positioned on the sidewall of end cap 9, and this end is provided with the first joint 8.
Valve pocket 17 is connected with end cap 9 by locking nut 7, and end cap 9 is also equipped with pressure transducer 6 and overflow valve 11, and overflow valve 11 is connected with upper cavity 14 by passage.
In hydraulic circulation valve of the present invention, each parts all adopt O RunddichtringO to seal with external contact part static seal and reciprocating movement sealing place.
High speed forging hydraulic press hydraulic system pressure fluid is followed by the first joint 8 and the second joint 12 to hydraulic circulation valve of the present invention through air relief valve and reversal valve, reversal valve realizes commutation action, pressure oil liquid enters upper cavity 14 or lower chamber 18, piston 19 is promoted to move back and forth, because of piston 19 with spool 3 for threadeding, piston 19 promotes spool 3 to move, it is achieved the keying function of this hydraulic circulation valve.Particularly as follows: when the first joint 8 passes into control fluid, control fluid enters upper cavity 14 through the first joint 8 and acts on piston 19 upper surface, piston 19 is promoted to move down, realize spool 3 to contact with valve seat 2 sealing, now in pressure-loaded prefilling tank, fluid enters valve body 1 inner chamber through the flange 21 of valve body 1, but fluid cannot pass through valve body 1 to flow out, and now this external control type hydraulic circulation valve is closed.Otherwise, when the second joint 12 passes into control fluid, control fluid enters lower chamber 18 through the second joint 12 and acts on piston 19 lower surface, piston 19 is promoted to move up, realize spool 3 to separate with valve seat 2, now in pressure-loaded prefilling tank, fluid enters valve body 1 inner chamber through the flange 21 of valve body 1, is flowed out by valve seat 2 and base 22, and now external control type hydraulic circulation valve of the present invention is in opening.
The oilhole that the uniform two row's axis of sleeve 4 circumference tilt, it is ensured that in pressure-loaded prefilling tank, fluid is when sleeve 4 flows out, and the impulsive force circumference of sleeve 4 is offseted by fluid, it is ensured that sleeve 4 does not occur to rock back and forth；Angle between oilhole axis and horizontal plane is 45 ° ± 5 °, it is ensured that in pressure-loaded prefilling tank, fluid flows out gently through sleeve 4, because fluid direction will not occur sharply to change, thus avoiding hydraulic shock and vibration generation.
Equipped with pressure transducer 6 on valve gap 5, sensor signal is connected to speed forging hydraulic press groups control panel, can monitor oil liquid pressure value in pressure-loaded prefilling tank in real time；When this hydraulic circulation valve operational failure, pressure transducer 6 sender, speed forging hydraulic press groups quits work；Overflow valve 11 is used for keeping constant pressure in upper cavity 14, and flow unnecessary in upper cavity 14 is carried out overflow.
The external control fluid of hydraulic circulation valve of the present invention controls system from speed forging hydraulic press groups, because adopting electro-hydraulic proportional valve and air relief valve in this control system, control oil liquid pressure stable, effectively prevent control oil liquid pressure fluctuation and the throttling plug screw pore size factor impact on circulating valve allotter start-stop performance.
Show that through repeatedly actually used hydraulic circulation valve reliable operation of the present invention can widely use.
Claims (3)
1. a Novel external-control type hydraulic circulation valve, it is characterized in that, valve body (1) including hollow, the base (22) of valve body (1) is provided with the valve seat (2) of tubular, valve seat (2) is connected with the sleeve (4) of tubular, being provided with two outage groups on the sidewall of sleeve (4) from top to bottom, this two outages group forms by the multiple oilholes along sleeve (4) radial equipartition；Being connected with side pipe (20) on the sidewall of valve body (1), one end of side pipe (20) is connected with flange (21)；Being provided with the valve gap (5) of annular on valve body (1) end face, be vertically provided with the valve pocket (17) of tubular in the endoporus of valve gap (5), valve pocket (17) lower end is stretched in sleeve (4), and valve gap (5) is stretched out outward in valve pocket (17) upper end；The endoporus of valve pocket (17) is three stepped holes, in this three stepped hole, diameter minimum aperture is towards base (22), the endoporus that valve pocket (17) diameter is minimum is provided with the inverted "T"-shaped spool (3) that can move back and forth up and down along own axes, the upper end of spool (3) sequentially passes through the minimum endoporus of valve pocket (17) diameter and the little endoporus of valve pocket (17) diameter second, stretch in the endoporus that valve pocket (17) diameter is maximum, spool (3) upper end is provided with piston (19), the external diameter of piston (19) is suitable with the diameter of the maximum endoporus of valve pocket (17) diameter, valve pocket (17), piston (19) and spool (3) surround lower chamber (18), valve pocket (17) sidewall is provided with the 3rd runner (15) connected with lower chamber (18)；Valve pocket (17) top is provided with end cap (9), and valve pocket (17), end cap (9) and piston (17) surround upper cavity (14), and upper cavity (14) is not connected with lower chamber (18)；End cap (9) is provided with the second runner (13) connected with the 3rd runner (15), and end cap (9) is provided with the first flow (10) connected with upper cavity (14)；End cap (9) is provided with overflow valve (11), valve gap (5) is provided with pressure transducer (6).
2. Novel external-control type hydraulic circulation valve according to claim 1, it is characterized in that, described sleeve (4) includes the core body (26) of tubular, core body (26) sidewall is provided with two oilhole groups from top to bottom, oilhole group above is made up of multiple first oilholes (27), multiple first oilholes (27) are radially distributed in core body (26) sidewall, and the oilhole group being positioned below is made up of multiple second oilholes (28), and multiple second oilholes (28) are radially distributed in core body (26) sidewall；First oilhole (27) and the second oilhole (28) are correspondingly arranged up and down, the axis of the first oilhole (27) being correspondingly arranged and the axis of the second oilhole (28) are parallel, the axis of the first oilhole (27) and the axis of the second oilhole (28) are obliquely installed, first oilhole (27) axis and the second oilhole (28) angle between axis and horizontal plane are 45 ° ± 5 °, the height and position of the first oilhole (27) axis and core body (26) medial wall intersection point is lower than the height and position of the first oilhole (27) axis Yu core body (26) lateral wall intersection point, the height and position of the second oilhole (28) axis and core body (26) medial wall intersection point is lower than the height and position of the second oilhole (28) axis Yu core body (26) lateral wall intersection point；Sleeve (4) lower end is affixed with valve seat (2), and sleeve (4) upper end is connected with valve body (1).
3. Novel external-control type hydraulic circulation valve according to claim 1 and 2, it is characterized in that, described valve body (1) includes the base (22) of annular, the endoporus of base (22) is shoulder hole, this shoulder hole is installing hole (23), base (22) is vertically connected with the housing (24) of tubular, housing (24) upper end is connected with the top board (25) of annular, housing (24) sidewall is connected with the side pipe (20) of axis and housing (24) axis perpendicular, installing hole (23) is relatively large in diameter to be held towards top board (25), installing hole (23) is relatively large in diameter in hole to be provided with the valve seat (2) of tubular, valve seat (2) diameter of bore is suitable with diameter smaller hole diameter in installing hole (23)；Vertically being connected with sleeve (4) on base (22), core body (26) lower end is affixed with valve seat (2), and sleeve (4) upper end is stretched in the endoporus of top board (25), and top board (25) is provided with the valve gap (5) of annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610238707.5A CN105736711B (en) | 2016-04-18 | 2016-04-18 | A kind of Novel external-control type hydraulic circulation valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610238707.5A CN105736711B (en) | 2016-04-18 | 2016-04-18 | A kind of Novel external-control type hydraulic circulation valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105736711A true CN105736711A (en) | 2016-07-06 |
| CN105736711B CN105736711B (en) | 2018-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610238707.5A Active CN105736711B (en) | 2016-04-18 | 2016-04-18 | A kind of Novel external-control type hydraulic circulation valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105736711B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488396A (en) * | 2018-05-30 | 2018-09-04 | 艾坦姆流体控制技术（北京）有限公司 | A kind of High Pressure Difference antiscour adjusting angle valve |
| CN113175559A (en) * | 2021-04-30 | 2021-07-27 | 四川泰诺流体控制技术有限公司 | Multi-flow-direction valve cage and valve cage module |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2789517Y (en) * | 2005-05-20 | 2006-06-21 | 上海平安高压调节阀门厂 | Closed circulating cooled water regulating valve |
| US20090250224A1 (en) * | 2008-04-04 | 2009-10-08 | Halliburton Energy Services, Inc. | Phase Change Fluid Spring and Method for Use of Same |
| CN202249949U (en) * | 2011-10-13 | 2012-05-30 | 中国石油集团西部钻探工程有限公司 | External-pressure opening type reverse circulation valve |
| US20120186825A1 (en) * | 2008-07-17 | 2012-07-26 | Wei Wang | Remote Actuation Testing Tool for High Pressure Differential Downhole Environments |
| CN202867174U (en) * | 2012-09-11 | 2013-04-10 | 湖北高中压阀门有限责任公司 | Pneumatic circulating valve |
| CN203547657U (en) * | 2013-07-31 | 2014-04-16 | 中国石油集团西部钻探工程有限公司 | Circulating valve |
| CN204960843U (en) * | 2015-09-14 | 2016-01-13 | 山东胜利石油装备产业技术研究院 | Two effect recycle valves |
| CN205618676U (en) * | 2016-04-18 | 2016-10-05 | 兰州兰石集团有限公司 | Novel control formula hydraulic pressure recycle valve outward |
-
2016
- 2016-04-18 CN CN201610238707.5A patent/CN105736711B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2789517Y (en) * | 2005-05-20 | 2006-06-21 | 上海平安高压调节阀门厂 | Closed circulating cooled water regulating valve |
| US20090250224A1 (en) * | 2008-04-04 | 2009-10-08 | Halliburton Energy Services, Inc. | Phase Change Fluid Spring and Method for Use of Same |
| US20120186825A1 (en) * | 2008-07-17 | 2012-07-26 | Wei Wang | Remote Actuation Testing Tool for High Pressure Differential Downhole Environments |
| CN202249949U (en) * | 2011-10-13 | 2012-05-30 | 中国石油集团西部钻探工程有限公司 | External-pressure opening type reverse circulation valve |
| CN202867174U (en) * | 2012-09-11 | 2013-04-10 | 湖北高中压阀门有限责任公司 | Pneumatic circulating valve |
| CN203547657U (en) * | 2013-07-31 | 2014-04-16 | 中国石油集团西部钻探工程有限公司 | Circulating valve |
| CN204960843U (en) * | 2015-09-14 | 2016-01-13 | 山东胜利石油装备产业技术研究院 | Two effect recycle valves |
| CN205618676U (en) * | 2016-04-18 | 2016-10-05 | 兰州兰石集团有限公司 | Novel control formula hydraulic pressure recycle valve outward |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488396A (en) * | 2018-05-30 | 2018-09-04 | 艾坦姆流体控制技术（北京）有限公司 | A kind of High Pressure Difference antiscour adjusting angle valve |
| CN113175559A (en) * | 2021-04-30 | 2021-07-27 | 四川泰诺流体控制技术有限公司 | Multi-flow-direction valve cage and valve cage module |
| CN113175559B (en) * | 2021-04-30 | 2022-08-16 | 四川泰诺流体控制技术有限公司 | Multi-flow-direction valve cage and valve cage module |
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| Publication number | Publication date |
|---|---|
| CN105736711B (en) | 2018-08-31 |
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Effective date of registration: 20230717 Address after: 730314 No.512, Huanghe Avenue (Weiyi Road), Lanzhou New District, Lanzhou City, Gansu Province Patentee after: LANZHOU LS HEAVY MACHINERY Co.,Ltd. Address before: 730314 no.516, west section of Kunlun Avenue, Lanzhou New District, Lanzhou City, Gansu Province Patentee before: LANZHOU LS GROUP Co.,Ltd. |
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