CN108105418A - For the four-way rapid reversal valve door of oil-gas transportation - Google Patents
For the four-way rapid reversal valve door of oil-gas transportation Download PDFInfo
- Publication number
- CN108105418A CN108105418A CN201711364813.9A CN201711364813A CN108105418A CN 108105418 A CN108105418 A CN 108105418A CN 201711364813 A CN201711364813 A CN 201711364813A CN 108105418 A CN108105418 A CN 108105418A
- Authority
- CN
- China
- Prior art keywords
- plunger
- hole
- valve
- axis
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
- F16K11/0716—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides with fluid passages through the valve member
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/041—Construction of housing; Use of materials therefor of sliding valves cylindrical slide valves
-
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/28—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with resilient 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
-
- 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
- F16K31/14—Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves
- F16K31/143—Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves the fluid acting on a piston
-
- 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
Abstract
The invention discloses the four-way rapid reversal valve doors for oil-gas transportation, when needing to change flow direction, fluid is injected into the runner connected with feedback pipe, so that fluid enters in non-return chamber, gradually non-return chamber is filled with, Fluid pressure can act on plunger end, plunger is promoted to connection cavity direction, so that plunger is whole to connection cavity direction movement, first through hole departs from the plane residing for four runners at this time, and the second through hole gradually moves to plane residing for four runners, connection to two opposite runners is realized by the second through hole, realize the quick and easy purpose for realizing flow direction commutation, it overcomes plunger valve in the prior art and flows to the problem of single.In addition the present invention can also realize automatically non-return, and without additionally setting the structures such as check valve, so as to which what is be simple and efficient solves the problems, such as the inconvenient control one-way flow of plunger valve in the prior art, realizing plunger valve being capable of the inverse purpose of auto-stopping.
Description
Technical field
The present invention relates to plunger valve fields, and in particular to for the four-way rapid reversal valve door of oil-gas transportation.
Background technology
Plunger valve is made of parts such as valve body, valve deck, valve rod, plunger, aperture frame, sealing ring, handwheels.When handwheel rotate,
By valve rod plunger is driven to pump to complete the open and close function of valve among aperture frame.The plunger in valve
With sealing interannular using being interference fitted, by adjusting flange bolt in gland, make lateral force and valve caused by sealing ring compression
Hole face and the sealing of plunger outer circle, so as to ensure that the leakproofness of valve, have prevented internal and outernal leakage while valve opening torque in body
It is small, it can realize that valve opens and closes rapidly.Plunger valve of the prior art is diconnected, fluid can wherein into
Capable two-way flowing, for needing the place of one-directional fluid flow, it is also necessary to additionally add ball-and-seat, cause complicated, company
Connect cumbersome, it is necessary to which the place of control operation is also more.In addition, existing plunger valve flows to single, cooperation threeway or four-way progress
Using equally existing the problem of complicated, difficult to install, cumbersome.
The content of the invention
It is an object of the invention to provide the four-way rapid reversal valve door for oil-gas transportation, to solve existing skill
Plunger valve flows to single and the problem of be unable to control one-way flow in art, realizes that plunger valve can be from two flow directions flexibly
Progress non-return and meanwhile can be simple and quick the purpose commutate.
The present invention is achieved through the following technical solutions：
For the four-way rapid reversal valve door of oil-gas transportation, including valve body, positioned at the in vivo plunger of valve, the column
Four runners are set in plug, and four runners are in same horizontal plane in cross distribution, the axis of four runners, and plunger is located at ten
Word infall, the plane that the axis of plunger is formed perpendicular to the axis of four runners set first through hole, the on the plunger
Two through holes, the first through hole, the axis of the second through hole are mutually perpendicular to, and first through hole, the axis of the second through hole are each perpendicular to
The axis of plunger, second through hole are located at the lower section of first through hole；Connecting cavity, non-return chamber are also set up in the valve body, it is described
The upper end of plunger is located in connecting cavity, lower end is located at non-return intracavitary；One end that plunger is located in connecting cavity is fixedly connected with valve rod, institute
Valve rod is stated to be pierced by valve body；Elastic component is also set up in the connecting cavity, one end of the elastic component is fixed on valve rod, is another
One end is fixed on the inner wall of connecting cavity, and the telescopic direction of the elastic component is parallel to valve rod axis；The elastic component is in nature
During state, the axis co-planar of the axis of first through hole and the runner；Plunger is located at one end of non-return intracavitary and non-return chamber side wall
Between have gap；Two feedback pipes are further included, two feedback pipes are connected in two opposite runners, described anti-
Pipeline connection is presented to non-return chamber, shut-off valve is both provided on feedback pipe.
Flowed to for plunger valve in the prior art single and the problem of be unable to control one-way flow, the present invention is proposed for oil
The four-way rapid reversal valve door of gas conveying including valve body, sets plunger, is set in plunger there are four runner in valve body,
Four runners are that four runners are opposite two-by-two, plunger is located at right-angled intersection, is flowed four by plunger in cross distribution
Separate in road.It is connected by first through hole on plunger, the second through hole in the present invention, first through hole, the second through hole
Axis is each perpendicular to the axis of plunger, it is ensured that it is extra along journey that fluid will not generate when being flowed in first through hole, the second through hole
Loss, first through hole, the axis of the second through hole are mutually perpendicular to so that first through hole has different flowing sides from the second through hole
To being convenient for commutating.Second through hole is located at the lower section of first through hole, it is ensured that first through hole between each other will not with the second through hole
Interference is generated, while there is difference in height between the two, it is therefore desirable to change the height and position of plunger, can realize the work(of commutation
Can, improve the stability when present invention uses.Connecting cavity, non-return chamber in valve body are set, connected since the both ends of plunger are located at respectively
Chamber, non-return intracavitary are connect, therefore the connecting cavity, non-return chamber can only be located at valve body both ends respectively.Plunger is located at one in connecting cavity
End is fixedly connected with valve rod, and the valve rod is pierced by valve body, and valve rod is controlled on the outside of valve body convenient for user.Two
One end of feedback pipe is respectively communicated in the valve body of plunger both sides, the other end of two feedback pipes is connected to non-return chamber
It is interior, control the break-make of two feedback pipes respectively by two shut-off valves.During present invention work, in its natural state, first is logical
The axis co-planar of the axis in hole and the runner；Therefore by rotation valve rod, plunger can be driven in the cross of four runners
Infall is rotated, and is as needed attached the outer end of external pipe and two runners, you can passes through the rotation of plunger
Angle realizes the shut-off or circulation of fluid, is not required to runner outer end to be used and is blocked by plug.It is flowed when needing to change
During direction, fluid is injected into the runner connected with feedback pipe so that fluid enters in non-return chamber, gradually fills non-return chamber
It is full, there is gap since plunger is located between one end of non-return intracavitary and non-return chamber side wall, Fluid pressure can act on column
End is filled in, plunger is promoted to connection cavity direction so that plunger is whole to connection cavity direction movement, and first through hole takes off at this time
Plane residing for from four runners, and the second through hole gradually moves to plane residing for four runners, is realized by the second through hole to phase
To two runners connection.Since first through hole and the axis of the second through hole are mutually perpendicular to, that is, realize quick and easy
Realize flow direction commutation purpose, overcome plunger valve in the prior art and flow to the problem of single.In addition, work as needs originally
During invention non-return, a runner for being provided with feedback pipe is selected to be used as liquid stream road, if fluid flow direction is correct, fluid
It after first through hole or the second through hole on plunger can be firstly flowed through, again passes through and opens at the feedback pipe of shut-off valve, due to passing through
The pressure drop of first through hole or the second through hole, therefore the Fluid pressure at this greatly reduces, into the fluid meeting in feedback pipe
Seldom and pressure is very low, and valve rod will not be impacted.If the flow direction of fluid is with required direction on the contrary, fluid is flowing through column
It before plug, will flow into from the feedback pipe for open shut-off valve in non-return chamber, with the continuous flowing of fluid, gradually will
Non-return chamber is filled with, and has gap since plunger is located between one end of non-return intracavitary and non-return chamber side wall, Fluid pressure
Plunger end can be acted on, plunger is promoted to connection cavity direction so that plunger is whole to connection cavity direction movement, plunger
On runner depart from the major trunk roads at valve body center, the present invention is automatically blocked at this time, while elastic component is compressed, due to the
One through hole is vertical with the axis of the second through hole, therefore under not rotation valve rod angle case, the second through hole will not will make
Two runners connect completely, therefore without worrying the problem of fluid is run helter-skelter.The Fluid pressure in liquid direction to be gone out recovers normal,
After the no longer reversed flowing of fluid, under the reset force effect of elastic component, plunger to non-return cavity direction can just be promoted, realized just
Normal reset and use.Therefore, the present invention can also realize automatically non-return, without additionally setting the structures such as check valve, so as to
What is be simple and efficient solves the problems, such as the inconvenient control one-way flow of plunger valve in the prior art, and realizing plunger valve being capable of auto-stopping
Inverse purpose.Meanwhile the present invention is after installing, it is only necessary to according to required flow direction, open the feedback pipe on outflow direction
The shut-off valve of road can overcome tradition as needed flexibly to the non-return of two making choice property of flow direction
Once check valve greatly improves the flexible journey when present invention uses the problem of being fixedly mounted, then can not adjusting flow direction
Degree.
Preferably, the handwheel being fixedly connected with the valve rod is further included, the handwheel is located at outside valve body.Convenient for user
The rotation of valve rod is controlled by handwheel, so as to simply and easily carry out operating with for conventional plunger valve to the present invention, is reduced
Manpower consumption.
Preferably, the elastic component is spring, and the spring pocket is outside valve rod.So that the elastic force of spring is uniformly distributed
Around valve rod, the present invention whole stress distribution and stabilization are improved.
Preferably, the feedback pipe is copper pipe.To improve antiseptic and rustproof ability, the service life of the present invention is improved.
Preferably, the open end of the runner is respectively and fixedly provided with ring flange.By ring flange convenient for by the outer end of runner and outside
Boundary's pipeline carries out connection rapidly and efficiently, improves efficiency during present invention installation connection.
Preferably, the lateral surface of the ring flange is embedded with sealing ring, and the sealing ring and ring flange are concentric.Ring flange
Lateral surface be embedded sealing ring so that after ring flange and exterior line connect, can have splendid sealing effect, improve this
The sealing performance of invention.
Preferably, the sealing ring is polytetrafluoroethylsealed sealed circle.
Preferably, gasket is arranged on the valve rod, the gasket is fixed on valve inner.By being fixed in valve body
Gasket valve rod is circumferentially coated, improve the sealability between valve rod and valve body, prevent that fluid is outside at valve rod
It overflows, improves the stability in use of the present invention.
Compared with prior art, the present invention it has the following advantages and advantages：
1st, the present invention is used for the four-way rapid reversal valve door of oil-gas transportation, when needing to change flow direction, to
Fluid is injected in the runner connected with feedback pipe so that fluid enters in non-return chamber, is gradually filled with non-return chamber, fluid pressure
Power can act on plunger end, and plunger is promoted to connection cavity direction so that and plunger is whole to be moved to connection cavity direction, this
When first through hole depart from plane residing for four runners, and the second through hole gradually moves to plane residing for four runners, by second
Through hole realizes the connection to two opposite runners, that is, realizes the quick and easy purpose for realizing flow direction commutation, overcome
Plunger valve flows to the problem of single in the prior art.
2nd, the present invention is used for the four-way rapid reversal valve door of oil-gas transportation, additionally it is possible to realize automatically non-return, nothing
The structures such as check valve need to be additionally set, so as to which the plunger valve inconvenience in the prior art that solves being simple and efficient controls one-way flow
Problem, realizing plunger valve being capable of the inverse purpose of auto-stopping.
3rd, the present invention is used for the four-way rapid reversal valve door of oil-gas transportation, is only needed according to required after installing
The shut-off valve on the feedback pipe on outflow direction is opened in flow direction, can be as needed flexibly to two flowing sides
To the non-return of making choice property, the problem of traditional check valve can be overcome once to be fixedly mounted, then can not adjust flow direction, pole
The big degree of flexibility improved when the present invention uses.
Description of the drawings
Attached drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application
Point, do not form the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is the top view of specific embodiment of the invention runner section；
Fig. 2 is the sectional view of the A-A direction lines along Fig. 1；
Fig. 3 is the front view of ring flange in the specific embodiment of the invention.
Mark and corresponding parts title in attached drawing：
1- valve bodies, 2- plungers, 3- runners, 4- connecting cavities, the non-return chambers of 5-, 6- valve rods, 7- elastic components, 8- feedback pipes, 9-
Handwheel, 10- gaskets, 11- shut-off valves, 12- ring flanges, 13- sealing rings, 14- first through hole, the second through holes of 15-.
Specific embodiment
Understand to make the object, technical solutions and advantages of the present invention clearer, with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment 1：
The four-way rapid reversal valve door for oil-gas transportation as shown in Figure 1 to Figure 3, including valve body 1, positioned at valve
Plunger 2 in body 1, sets four runners 3 in the plunger 2, and four runners 3 are in cross distribution, at the axis of four runners 3
In same horizontal plane, plunger 2 is located at right-angled intersection, and the axis of plunger 2 is put down perpendicular to what the axis of four runners 3 was formed
Face, first through hole 14, the second through hole 15 are set on the plunger 2, and the first through hole 14, the axis of the second through hole 15 mutually hang down
Directly, and first through hole 14, the axis of the second through hole 15 are each perpendicular to the axis of plunger 2, and it is logical that second through hole 15 is located at first
The lower section in hole 14；Also set up connecting cavity 4, non-return chamber 5 in the valve body 1, the upper end of the plunger 2 is located in connecting cavity 4, lower end
In non-return chamber 5；One end that plunger 2 is located in connecting cavity 4 is fixedly connected with valve rod 6, and the valve rod 6 is pierced by 1 outside of valve body；
Also set up elastic component 7 in the connecting cavity 4, one end of the elastic component 7 is fixed on valve rod 6, the other end is fixed on connecting cavity 4
Inner wall, the telescopic direction of the elastic component 7 is parallel to 6 axis of valve rod；The elastic component 7 in the raw when, first is logical
The axis co-planar of the axis in hole 14 and the runner 3；Have between 5 side wall of one end and non-return chamber that plunger 2 is located in non-return chamber 5
Gap；Two feedback pipes 8 are further included, two feedback pipes 8 are connected in two opposite runners 3, the feedback pipe
Road 8 is connected to non-return chamber 5, and shut-off valve 11 is both provided on feedback pipe 8.Further include the handwheel being fixedly connected with the valve rod 6
9, the handwheel 9 is located at outside valve body 1.The elastic component 7 is spring, and the spring pocket is outside valve rod 6.The feedback pipe 8
For copper pipe.The open end of the runner 3 is respectively and fixedly provided with ring flange 12.The lateral surface of the ring flange 12 is embedded with sealing ring
13, the sealing ring 13 and ring flange 12 are concentric.The sealing ring 13 is polytetrafluoroethylsealed sealed circle.Gasket is arranged on the valve rod 6
10, the gasket 10 is fixed on inside valve body 1.
Above-described specific embodiment has carried out the purpose of the present invention, technical solution and advantageous effect further
It is described in detail, it should be understood that the foregoing is merely the specific embodiments of the present invention, is not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (8)
1. for the four-way rapid reversal valve door of oil-gas transportation, including valve body (1), the plunger in valve body (1)
(2), which is characterized in that four runners (3) are set in the plunger (2), and four runners (3) are in cross distribution, four runners
(3) axis is in same horizontal plane, and plunger (2) is located at right-angled intersection, and the axis of plunger (2) is perpendicular to four runners (3)
The plane that is formed of axis, first through hole (14), the second through hole (15), the first through hole are set on the plunger (2)
(14), the axis of the second through hole (15) is mutually perpendicular to, and first through hole (14), the axis of the second through hole (15) are each perpendicular to plunger
(2) axis, second through hole (15) are located at the lower section of first through hole (14)；Connecting cavity is also set up in the valve body (1)
(4), non-return chamber (5), it is interior that the upper end of the plunger (2) is located in connecting cavity (4), lower end is located at non-return chamber (5)；Plunger (2) position
Valve rod (6) is fixedly connected in one end in connecting cavity (4), the valve rod (6) is pierced by valve body (1)；The connecting cavity (4)
Inside also set up elastic component (7), one end of the elastic component (7) is fixed on valve rod (6), the other end is fixed on connecting cavity (4)
Inner wall, the telescopic direction of the elastic component (7) is parallel to valve rod (6) axis；The elastic component (7) in the raw when,
The axis of one through hole (14) and the axis co-planar of the runner (3)；Plunger (2) is located at one end and non-return chamber in non-return chamber (5)
(5) there is gap between side wall；Further include two feedback pipes (8), two feedback pipes (8) be connected to two it is opposite
In runner (3), the feedback pipe (8) is connected to non-return chamber (5), and shut-off valve (11) is both provided on feedback pipe (8).
2. the four-way rapid reversal valve door according to claim 1 for oil-gas transportation, which is characterized in that also wrap
The handwheel (9) being fixedly connected with the valve rod (6) is included, it is external that the handwheel (9) is located at valve body (1).
3. the four-way rapid reversal valve door according to claim 1 for oil-gas transportation, which is characterized in that described
Elastic component (7) be spring, the spring pocket in valve rod (6) outside.
4. the four-way rapid reversal valve door according to claim 1 for oil-gas transportation, which is characterized in that described
Feedback pipe (8) is copper pipe.
5. the four-way rapid reversal valve door according to claim 1 for oil-gas transportation, which is characterized in that described
The open end of runner (3) is respectively and fixedly provided with ring flange (12).
6. the four-way rapid reversal valve door according to claim 5 for oil-gas transportation, which is characterized in that described
The lateral surface of ring flange (12) is embedded with sealing ring (13), and the sealing ring (13) and ring flange (12) are concentric.
7. the four-way rapid reversal valve door according to claim 6 for oil-gas transportation, which is characterized in that described
Sealing ring (13) is polytetrafluoroethylsealed sealed circle.
8. the four-way rapid reversal valve door according to claim 1 for oil-gas transportation, which is characterized in that described
Gasket (10) is arranged on valve rod (6), it is internal that the gasket (10) is fixed on valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711364813.9A CN108105418A (en) | 2017-12-18 | 2017-12-18 | For the four-way rapid reversal valve door of oil-gas transportation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711364813.9A CN108105418A (en) | 2017-12-18 | 2017-12-18 | For the four-way rapid reversal valve door of oil-gas transportation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108105418A true CN108105418A (en) | 2018-06-01 |
Family
ID=62209819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711364813.9A Withdrawn CN108105418A (en) | 2017-12-18 | 2017-12-18 | For the four-way rapid reversal valve door of oil-gas transportation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108105418A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869846A (en) * | 2018-08-10 | 2018-11-23 | 湖州森纳德电子科技有限公司 | A kind of stepper motor electromagnetic combined valve |
| CN110594470A (en) * | 2019-10-08 | 2019-12-20 | 南京铁道职业技术学院 | Multipurpose compressed air pipeline joint valve |
| CN113586547A (en) * | 2020-04-30 | 2021-11-02 | 中国石油化工股份有限公司 | Slurry reversing valve |
-
2017
- 2017-12-18 CN CN201711364813.9A patent/CN108105418A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869846A (en) * | 2018-08-10 | 2018-11-23 | 湖州森纳德电子科技有限公司 | A kind of stepper motor electromagnetic combined valve |
| CN110594470A (en) * | 2019-10-08 | 2019-12-20 | 南京铁道职业技术学院 | Multipurpose compressed air pipeline joint valve |
| CN113586547A (en) * | 2020-04-30 | 2021-11-02 | 中国石油化工股份有限公司 | Slurry reversing valve |
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Application publication date: 20180601 |
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| WW01 | Invention patent application withdrawn after publication |