CN212360861U - Ball valve with changeable flow control - Google Patents
Ball valve with changeable flow control Download PDFInfo
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- CN212360861U CN212360861U CN202020959655.2U CN202020959655U CN212360861U CN 212360861 U CN212360861 U CN 212360861U CN 202020959655 U CN202020959655 U CN 202020959655U CN 212360861 U CN212360861 U CN 212360861U
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Abstract
The utility model discloses a ball valve of changeable control of flow, its technical scheme main points are including two disk seats and the case that is located between two disk seats, inlet channel and drain passage have been seted up respectively to two disk seats, be provided with on the disk seat of seting up drain passage and hinder the baffle of keeping apart with drain passage and case, the rotation direction along the case has set gradually a plurality of micro-control liquid through hole and a coarse control liquid through hole on the baffle, the profile of coarse control liquid through hole is greater than the profile of micro-control liquid through hole, coarse control liquid through hole and a plurality of micro-control liquid through hole all communicate drain passage and case, the problem of prior art unable control flow and flow rate of change has been solved.
Description
Technical Field
The utility model relates to a valve, more specifically the ball valve that relates to a flow can changeable control that says so.
Background
The ball valve is a valve which uses a ball valve core with a circular through hole as an opening and closing part and realizes the opening and closing actions by the rotation of the ball valve core along with a valve rod, and is widely applied to various industries such as petroleum, chemical engineering, power generation, paper making, atomic energy, aviation, rockets and the like and daily life of people. Usually, when the ball valve is turned from a closed state to a maximum open state, the rotation angle of the valve rod is 90 degrees, when the ball valve reaches the maximum open state, the flow passing through the ball valve is maximum, and the flow passing through the ball valve in the opening process of the ball valve is generally uncontrollable, that is, the flow passing through the ball valve is only determined as the maximum flow, and the flow passing through the ball valve is difficult to realize if the flow passing through the ball valve is controlled within the maximum flow and has a more determined value; furthermore, when never leading to liquid to leading to liquid in the disk seat, need carry out flow control to the liquid that flows through the case, the too big or liquid velocity of flow that leads to the disk seat internal pressure to change greatly and cause the problem of disk seat deformation when avoiding liquid just to get into the disk seat fast, and current ball valve is difficult to realize, for solving aforementioned two kinds of defects, need design a ball valve that pressure is stable and flow can changeable control.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a flow rate of change can be changeable and pressure stable's ball valve.
In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a ball valve of changeable control of flow, includes two disk seats and is located the case between two disk seats, two inlet channel and liquid outlet channel have been seted up respectively to the disk seat, set up liquid outlet channel be provided with on the disk seat and hinder the baffle of keeping apart liquid outlet channel and case, the direction of rotation along the case has set gradually a plurality of micro-control liquid through hole and a coarse control liquid through hole on the baffle, the profile of coarse control liquid through hole is greater than the profile of micro-control liquid through hole, coarse control liquid through hole and a plurality of micro-control liquid through hole all communicate liquid outlet channel and case.
As a further improvement of the utility model, the coarse control liquid through hole and the plurality of micro control liquid through hole are arranged in parallel relative to the length direction of the liquid outlet channel.
As a further improvement of the utility model, a plurality of the micro-control liquid through holes are distributed in a honeycomb shape.
As a further improvement, two all be provided with the sealing washer on the face of disk seat orientation case, the sealing washer is laminated mutually with the coaxial setting of case and with the surface of case.
As a further improvement, two all be provided with a plurality ofly on the disk seat with the spring that the sealing washer promoted to case place direction, it is a plurality of the spring all is parallel with the axis of disk seat.
As a further improvement of the utility model, it is a plurality of the spring evenly distributed is on same circumference.
As a further improvement, two all be provided with the outer convex part that corresponds with the spring on the sealing washer, outer convex part sets up on the outer wall of sealing washer and is located the sealing washer and keeps away from one of case and serve, the spring is spacing between disk seat and outer convex part, two all can dismantle on the disk seat and be connected with the apron that is spacing in the disk seat with outer convex part.
As a further improvement of the present invention, the outer convex portion is a ring coaxially disposed with the seal ring.
The utility model has the advantages that: through set up the baffle that is used for separation case and disk seat intercommunication on the disk seat that is used for the play liquid, set gradually a plurality of micro-control liquid through hole and a coarse control liquid through hole on the baffle along case direction of rotation, in the ball valve opening process, the case communicates with coarse control liquid through hole intercommunication in the micro-control liquid through hole on the baffle earlier, flow in the liquid outlet channel can slowly increase earlier then increase fast, so design compare how much that prior art can not only the control flow can also control the flow rate of change, in opening and closing process of ball valve, do benefit to the atmospheric pressure balance of liquid outlet channel and external world, make the pressure variation in the liquid outlet channel little and tend to stability, slow down the phenomenon that the disk seat warp because of pressure instability, protect the disk seat indirectly, the life of disk seat has been prolonged.
Drawings
Fig. 1 is a main sectional view of the present invention;
FIG. 2 is a right side view of the valve seat with micro-control liquid through holes and coarse-control liquid through holes;
FIG. 3 is a schematic view of another embodiment of FIG. 2;
FIG. 4 is an enlarged view taken at A in FIG. 1;
fig. 5 is a partial top cross-sectional view of the baffle of fig. 2.
Reference numerals: 1. a valve seat; 2. a valve core; 3. a liquid inlet channel; 4. a baffle plate; 5. micro-control liquid through holes; 6. a liquid outlet channel; 7. a seal ring; 8. a spring; 9. an outer convex portion; 10. a cover plate; 11. and roughly controlling a liquid through hole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals.
Referring to fig. 1 to 5, the ball valve with variable flow rate control of the present embodiment includes two valve seats 1 and a valve core 2 located between the two valve seats 1, the two valve seats 1 are respectively provided with a liquid inlet channel 3 and a liquid outlet channel 6, the improvement is made on the existing basis, a baffle 4 is disposed at a port of the valve seat 1 provided with the liquid outlet channel 6 close to the valve core 2, the baffle 4 can be integrally formed with the valve seat 1, that is, when the liquid outlet channel 6 is processed, the liquid outlet channel 6 does not penetrate through the valve seat 1, a plurality of micro-control liquid through holes 5 and a coarse-control liquid through hole 11 are disposed at a corresponding portion of the valve core 2, where the orifice of the valve core 2 is opposite to the baffle 4, the arrangement of the micro-control liquid through holes 5 is multiple, preferably, the plurality of micro-control liquid through holes 5 are distributed in a honeycomb shape, which can maximize the flow rate, and the micro-control liquid through holes 5 and the coarse-control liquid through holes, the valve core 2 and the liquid outlet channel 6 are communicated with a coarse control liquid through hole 11 through a plurality of micro control liquid through holes 5, the orifice outline of the coarse control liquid through hole 11 is larger than the orifice outline of the micro control liquid through hole 5, namely, the liquid through amount of the coarse control liquid through hole 11 is equal to the total liquid through amount of the plurality of micro control liquid through holes 5;
in an initial state, the valve core 2 is not communicated with the valve seat 1; when the valve core 2 rotates, the valve core 2 is firstly communicated with the micro-control liquid through holes 5, the liquid flow of the liquid outlet channel 6 is slowly increased, the pressure in the liquid outlet channel 6 is stable, the quantity of the micro-control liquid through holes 5 on the valve seat 1 communicated with the valve core 2 is changed along with the continuous rotation of the valve core 2, the flow in the liquid outlet channel 6 is gradually increased, the flow increasing speed is slow, the gas in the liquid outlet channel 6 is stably discharged, the pressure in the liquid outlet channel 6 tends to be stable until the valve core 2 is communicated with the coarse control liquid through hole 11, and because the gas in the liquid outlet channel 6 is discharged mostly and has a certain height of water level, therefore, under the conditions that the subsequent flow increase amount is increased and the flow is increased sharply, the liquid outlet channel 6 is filled with liquid, the gas is exhausted to the maximum extent, the pressure change in the liquid outlet channel 6 is small and tends to be stable, namely the flow change does not need to be accurately controlled subsequently; when the valve is closed, the valve core 2 is reversed, the valve core 2 is firstly disconnected with the coarse control liquid through hole 11, the flow in the liquid outlet channel 6 is rapidly reduced, the flow speed in the liquid outlet channel 6 is convenient to slow down, the external gas easily enters the liquid outlet channel 6, the flow is gradually reduced until the flow is zero, and the pressure balance between the inside of the liquid outlet channel 6 and the outside is good in the whole process;
compared with the prior art, the design can control the flow rate and the flow change rate, is beneficial to the air pressure balance between the liquid outlet channel 6 and the outside in the opening and closing processes of the ball valve, indirectly protects the valve seat 1 and prolongs the service life of the valve seat 1;
further, referring to fig. 2 and 3, the shape of the coarse control liquid through hole 11 is various, such as a crescent shape or an oval shape, and the design can be performed according to actual requirements.
As an improved specific embodiment, referring to fig. 5, a coarse control liquid through hole 11 and a plurality of micro control liquid through holes 5 are both arranged in parallel with the length direction of a liquid outlet channel 6, and the design that the micro control liquid through holes 5 and the coarse control liquid through holes 11 are both parallel to the liquid outlet channel 6 corrects the flow direction of the liquid flowing through a valve core 2, so that the flow direction of the liquid flowing out of the valve core 2 is parallel to the length direction of the liquid outlet channel 6, compared with the design that the flow direction of the liquid is not parallel to the length direction of the liquid outlet channel 6 in the prior art, the design can avoid uneven impact of the liquid on the liquid outlet channel 6, slow down the deformation of the valve seat 1, prolong the service life of the valve seat 1, and improve the flow efficiency of the liquid in the liquid outlet channel 6.
As an improved specific embodiment, referring to fig. 2 to 4, as compared with the case where the baffle 4 is provided on the valve seat 1 and the micro-control liquid through hole 5 is provided on the baffle 4, the flow rate of the liquid flowing through the valve element 2 is unchanged while the flow rate of the liquid directly provided on the valve seat 1 is reduced, so that the liquid pressure at the baffle 4 is easily increased, and the liquid flows around the baffle 4, and easily flows through the gap between the valve seat 1 and the valve element 2 to reach other positions, thereby causing a liquid leakage phenomenon, in order to avoid this problem, the sealing rings 7 are provided on the surfaces of the two valve seats 1 facing the valve element 2, the sealing rings 7 are coaxially provided with the valve element 2 and are attached to the surface of the valve element 2, so that the sealing performance between the valve seats 1 and the valve element 2 is improved, thereby preventing the liquid.
As an improved specific embodiment, referring to fig. 4, under the condition that the valve core 2 is worn for a long time relative to the sealing ring 7, the sealing ring 7 is worn and damaged, so that the sealing performance between the valve core 2 and the valve seat 1 is reduced, and the sealing ring 7 needs to be frequently replaced, and the required maintenance period is short, in order to solve the problem, a plurality of springs 8 which push the sealing ring 7 towards the direction of the valve core 2 are arranged on the two valve seats 1, the plurality of springs 8 are all parallel to the axis of the valve seat 1, after the valve seat 1 and the valve core 2 are installed in place, the springs 8 are all in a compressed state, the sealing ring 7 partially penetrates out of the valve seat 1 and is attached to the surface of the valve core 2, after the sealing ring 7 is worn partially, the springs 8 continuously push the sealing ring 7 outwards, so that the sealing ring 7 is continuously attached to the valve core 2, the service time, is convenient for long-term use.
As an improved specific embodiment, referring to fig. 4, the plurality of springs 8 are uniformly distributed on the same circumference, so that compared with the case that the plurality of springs 8 are non-uniformly distributed, the design enables the sealing ring 7 to be uniformly stressed and not easily deformed, and further improves the sealing performance.
As an improved specific embodiment, referring to fig. 4, two sealing rings 7 are each provided with an outer protrusion 9 corresponding to a spring 8, the outer protrusion 9 is disposed on the outer wall of the sealing ring 7 and located at an end of the sealing ring 7 away from the valve element 2, the spring 8 is limited between the valve seat 1 and the outer protrusion 9, the spring 8 pushes the outer protrusion 9 to move the sealing ring 7 out of the valve seat 1, two valve seats 1 are each detachably connected with a cover plate 10 for limiting the outer protrusion 9 in the valve seat 1, the cover plate 10 can be fixedly connected with the valve seat 1 through a bolt, the cover plate 10 can be a circular ring, when the outer protrusion 9 abuts against the cover plate 10, the spring 8 can not push the outer protrusion 9 any more, the sealing ring 7 stops moving, when a liquid leakage occurs, the cover plate 10 can be removed, the sealing ring 7 can be taken out and a new sealing ring 7 can be limited in the valve seat 1 again by the cover plate, the spring 8 is in a compressed state, compared with the previous embodiment, the design can ensure the connection stability of the sealing ring 7 relative to the valve seat 1, and the sealing ring 7 cannot fall off from the valve seat 1; meanwhile, the design of the outer convex part 9 can be fully contacted with one end of the spring 8 when the wall thickness of the sealing ring 7 is smaller, the sealing ring 7 can be limited on the valve seat 1, and the sealing ring 7 can be conveniently replaced due to the detachable design of the cover plate 10.
As an improved specific embodiment, referring to fig. 4, the sealing ring 7 tends to move under the driving of the valve element 2, and the design that the outer protrusion 9 is a small protrusion and corresponds to the spring 8 may cause that a part of the sealing ring 7 not connected with the outer protrusion 9 extends out of the valve seat 1 more, so that the deformation of the sealing ring 7 is large and sealing is not facilitated, in order to solve the problem, the outer protrusion 9 is a ring coaxially arranged with the sealing ring 7, and compared with the design that the outer protrusion 9 is designed into a plurality of small protrusions, the structural stability of the sealing ring 7 can be improved, and the sealing performance of the sealing ring 7 and the valve element 2 is indirectly improved.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a ball valve of changeable control of flow, includes two disk seats (1) and is located case (2) between two disk seats (1), two inlet channel (3) and play liquid channel (6), its characterized in that have been seted up respectively to disk seat (1): the valve seat (1) provided with the liquid outlet channel (6) is provided with a baffle (4) for blocking the liquid outlet channel (6) from the valve core (2), the baffle (4) is sequentially provided with a plurality of micro-control liquid through holes (5) and a coarse-control liquid through hole (11) along the rotation direction of the valve core (2), the outline of the coarse-control liquid through hole (11) is larger than the outline of the micro-control liquid through hole (5), and the coarse-control liquid through hole (11) and the plurality of micro-control liquid through holes (5) are communicated with the liquid outlet channel (6) and the valve core (2).
2. A variable flow controlled ball valve according to claim 1, wherein: the coarse control liquid through hole (11) and the micro control liquid through holes (5) are arranged in parallel relative to the length direction of the liquid outlet channel (6).
3. A variable flow controlled ball valve according to claim 1 or 2, wherein: a plurality of the micro-control liquid through holes (5) are distributed in a honeycomb shape.
4. A variable flow controlled ball valve according to claim 1 or 2, wherein: and sealing rings (7) are arranged on the surfaces of the two valve seats (1) facing the valve core (2), and the sealing rings (7) are coaxially arranged with the valve core (2) and are attached to the surface of the valve core (2).
5. A variable flow controlled ball valve according to claim 1 or 2, wherein: the two valve seats (1) are respectively provided with a plurality of springs (8) which push the sealing ring (7) to the direction of the valve core (2), and the springs (8) are parallel to the axis of the valve seats (1).
6. A variable flow controlled ball valve according to claim 5, wherein: the springs (8) are uniformly distributed on the same circumference.
7. A variable flow controlled ball valve according to claim 6, wherein: the two sealing rings (7) are respectively provided with an outer convex part (9) corresponding to the spring (8), the outer convex parts (9) are arranged on the outer wall of the sealing rings (7) and are positioned at one end, far away from the valve core (2), of the sealing rings (7), the spring (8) is limited between the valve seat (1) and the outer convex parts (9), and the two valve seats (1) are detachably connected with cover plates (10) limiting the outer convex parts (9) in the valve seat (1).
8. A variable flow controlled ball valve according to claim 7, wherein: the outer convex part (9) is a ring which is coaxial with the sealing ring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020959655.2U CN212360861U (en) | 2020-05-29 | 2020-05-29 | Ball valve with changeable flow control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020959655.2U CN212360861U (en) | 2020-05-29 | 2020-05-29 | Ball valve with changeable flow control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212360861U true CN212360861U (en) | 2021-01-15 |
Family
ID=74156230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020959655.2U Active CN212360861U (en) | 2020-05-29 | 2020-05-29 | Ball valve with changeable flow control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212360861U (en) |
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2020
- 2020-05-29 CN CN202020959655.2U patent/CN212360861U/en active Active
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