CN210088084U - Anti-scouring composite valve set - Google Patents
Anti-scouring composite valve set Download PDFInfo
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- CN210088084U CN210088084U CN201920625254.0U CN201920625254U CN210088084U CN 210088084 U CN210088084 U CN 210088084U CN 201920625254 U CN201920625254 U CN 201920625254U CN 210088084 U CN210088084 U CN 210088084U
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Abstract
The utility model relates to an antiscour compound valves, its characterized in that: the valve body is internally provided with a flow passage, a pioneer valve seat arranged at the inlet end of the flow passage is connected with a pioneer valve clack in a sealing way, a main valve seat arranged at the outlet end of the flow passage is connected with a main valve clack in a sealing way, the pioneer valve clack is connected with a spring, a flow regulating piston is sleeved on the outer wall of the spring, the inner cavity of the spring is communicated with one end of a hydraulic control pipeline, the other end of the hydraulic control pipeline is communicated with the guide sleeve, the hydraulic control pipeline and the spring control the opening and closing of the pioneer valve clack through hydraulic change, the top end of the main valve clack is fixedly connected with the bottom end of a main valve rod, a main valve cover is in threaded engagement with the outer wall of the main valve rod through a main valve rod nut, the main valve rod can make telescopic, the maintenance is convenient, and no requirement is required for connecting pipelines.
Description
Technical Field
The utility model relates to an antiscour compound valves.
Background
The existing technical scheme adopts a pure mechanical transmission mode to drive the auxiliary valve to open and close by main valve operation mostly, so that the opening torque is increased, the energy consumption is increased, the cost of the matching equipment is increased, the non-protection valve is opened at a small angle, the sealing surface bears high-pressure medium erosion, the practical service life of the valve is reduced, the pure mechanical transmission mechanism is installed outside the valve body, the transmission structure is complex, the size is large, the corrosion is easily polluted, the maintenance is difficult, the function of a check valve is not realized, a side flange form is adopted, the sealing gasket is easy to leak at a high alternating temperature, the valve structure of the existing technology is complex, the online maintenance and the maintenance difficulty are large, if the ball valve is maintained, the side flange needs to be disassembled, the pipeline.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an antiscour compound valves has easy operation, easy maintenance, and is sealed effectual, promotes valve life by a wide margin.
In order to realize the purpose, the utility model discloses a technical scheme is:
the utility model provides an antiscour combination valves which characterized in that: an overflowing channel is arranged in the valve body, a pioneer valve seat arranged at the inlet end of the overflowing channel is in sealing connection with a pioneer valve clack, a main valve seat arranged at the outlet end of the overflowing channel is in sealing connection with a main valve clack, and the bottom end of the main valve seat is fixedly connected with the top end of the guide sleeve;
the top end of the pioneer valve clack is connected with the bottom end of a spring, a flow adjusting piston is sleeved on the outer wall of the spring, the top end of the spring is connected with a packing chamber seat, the inner cavity of the spring is communicated with one end of a hydraulic control pipeline, the other end of the hydraulic control pipeline is communicated with the guide sleeve, and the hydraulic control pipeline and the spring control the opening and closing of the pioneer valve clack through hydraulic change;
the top end of the main valve flap is fixedly connected with the bottom end of the main valve rod, the main valve cover is in threaded engagement with the outer wall of the main valve rod through a main valve rod nut, and the main valve rod can perform telescopic movement and rotary movement relative to the main valve rod nut and control the opening and closing of the main valve flap.
The anti-scour composite valve set, wherein: the bottom end of the valve body is fixedly connected with the blocking plate, the inlet end of the overflowing channel is communicated with the inlet of the valve body, and the outlet end of the overflowing channel is communicated with the outlet of the valve body.
The anti-scour composite valve set, wherein: the flow regulating piston sleeve is provided with a flow hole, and a medium flows into the spring inner cavity and the hydraulic control pipeline through the flow hole.
The anti-scour composite valve set, wherein: and the top end of the packing chamber seat is in sealing connection with the pressure cover of the pioneer valve by arranging a sealing ring and a pressure ring.
The anti-scour composite valve set, wherein: the valve gland is sleeved on the valve pin, and the thread on the outer wall of the valve pin is meshed with the valve nut.
The anti-scour composite valve set, wherein: the top end of the main valve rod is in transmission connection with a hand wheel, and the main valve rod is controlled to be capable of performing telescopic movement and rotary movement relative to the main valve rod nut through rotary movement of the hand wheel, and the opening and closing of the main valve flap are controlled.
The utility model has the advantages that: the advanced double control system is characterized in that the pioneer valve is completely opened and closed by taking a medium in the system as a power source, the sealing surface of the pioneer valve is protected by shortening the medium erosion time of the sealing surface of the pioneer valve under a small opening degree, the pioneer valve has a non-return function, the backflow situation occurs, the valve can be quickly closed and the whole valve is protected, the pioneer valve adopts a self-sealing cover structure, the larger the pressure is, the better the sealing effect is, the service life of the valve is greatly prolonged, the online disassembly and maintenance are convenient, and no additional requirements are required on a.
Drawings
FIG. 1 is a block diagram of an anti-flush combination valve block.
Fig. 2 is a sectional structural view A-A of the anti-scouring combination valve set.
Description of reference numerals: 1-a valve body; 2-a pioneer valve seat; 3-a pioneer valve flap; 4-flow regulating piston sleeve; 5-a spring; 6-a packing chamber seat; 7-sealing ring; 8-pressing a ring; 9-a pioneer valve gland; 10-a pioneer valve nut; 11-a pioneer valve pin; 12-a blocking plate; 13-a flow-through channel; 14-a pilot operated line; 15-a guide sleeve; 16-main valve seat; 17-main valve flap; 18-main valve stem; 19-a main valve cover; 20-main stem nut; 21-hand wheel.
Detailed Description
As shown in fig. 1-2, the anti-scouring composite valve set is characterized in that: the valve body 1 is internally provided with a flow passage 13, a pioneer valve seat 2 arranged at the inlet end of the flow passage 13 is in sealing connection with a pioneer valve clack 3, a main valve seat 16 arranged at the outlet end of the flow passage 13 is in sealing connection with a main valve clack 17, and the bottom end of the main valve seat 16 is fixedly connected with the top end of a guide sleeve 15.
The top end of the pioneer valve flap 3 is connected with the bottom end of a spring 5, a flow adjusting piston sleeve 4 is sleeved on the outer wall of the spring 5, the top end of the spring 5 is connected with a packing chamber seat 6, the inner cavity of the spring 5 is communicated with one end of a hydraulic control pipeline 14, the other end of the hydraulic control pipeline 14 is communicated with a guide sleeve 15, and the hydraulic control pipeline 14 and the spring 5 control the opening and closing of the pioneer valve flap 3 through hydraulic change.
The top end of the main valve flap 17 is fixedly connected with the bottom end of a main valve rod 18, a main valve cover 19 is in threaded engagement with the outer wall of the main valve rod 18 through a main valve rod nut 20, and the main valve rod 18 can perform telescopic movement and rotary movement relative to the main valve rod nut 20 and control the opening and closing of the main valve flap 17.
The bottom end of the valve body 1 is fixedly connected with the blocking plate 12, the inlet end of the overflowing channel 13 is communicated with the inlet of the valve body 1, and the outlet end of the overflowing channel 13 is communicated with the outlet of the valve body 1.
The flow regulating piston sleeve 4 is provided with a flow hole through which a medium flows into the inner cavity of the spring 5 and the hydraulic control pipeline 14.
The top end of the packing chamber seat 6 is hermetically connected with a pioneer valve gland 9 through a sealing ring 7 and a pressure ring 8.
The valve gland 9 is sleeved on the valve pin 11, and the thread on the outer wall of the valve pin 11 is meshed with the valve nut 10.
The top end of the main valve rod 18 is in transmission connection with a hand wheel 21, and the main valve rod 18 is controlled to be capable of performing telescopic movement and rotary movement relative to the main valve rod nut 20 through the rotary movement of the hand wheel 21, and the opening and closing of the main valve flap 17 are controlled.
In the embodiment, when the device is in an initial working condition, the pilot valve flap 3 is in sealed connection with the pilot valve seat 2, the main valve flap 17 is in sealed connection with the main valve seat 16, at this time, no medium exists in the flow passage 13, the medium enters from the inlet of the valve body 1 and fills the periphery of the pilot valve flap 3, the medium enters and fills the inner cavity of the spring 5 through the flow hole arranged on the flow regulating piston sleeve 4 and then enters the hydraulic control pipeline 14 communicated with the inner cavity of the spring 5, and due to the sealed connection state of the main valve flap 17 and the main valve seat 16, the medium in the hydraulic control pipeline 14 cannot flow out from the outlet of the valve body 1 through the guide sleeve 15.
The worker drives the hand wheel 21 to open by hand or by an electric or pneumatic power device, the hand wheel 21 rotates to drive the main valve stem 18 to rotate and move axially upward relative to the main valve stem nut 20, and drive the main valve flap 17 to move axially upward relative to the main valve stem nut 20, the main valve flap 17 is separated from the main valve seat 16, when the opening stroke of the main valve flap 17 reaches 70%, the medium in the hydraulic control pipeline 14 enters through the guide sleeve 15, the hydraulic control pipeline 14 is communicated with the outlet of the valve body 1, the medium flows out from the outlet of the valve body 1, at this time, as the medium in the inner cavity of the spring 5 flows out through the hydraulic control pipeline 14, the pressure of the medium in the inner cavity of the spring 5 and the spring 5 to the valve flap 3 is reduced, and the medium source continuously enters the periphery of the valve flap 3 through the inlet, upward thrust is continuously applied to the pioneer valve flap 3, pressure balance is broken, the pioneer valve flap 3 moves axially upwards, the pioneer valve flap 3 is separated from the pioneer valve seat 2, the flow regulating piston sleeve 4 moves upwards while the pioneer valve flap 3 moves upwards, the throttling hole is communicated and closed with the inlet of the valve body 1, so that the medium cannot enter the inner cavity of the spring 5 through the throttling hole, the overflowing channel 13 is communicated with the inlet and the outlet of the valve body 1, and the medium continuously enters the overflowing channel 13 through the inlet and flows out of the valve body 1 through the outlet.
The worker drives the hand wheel 21 to close manually or through an electric or pneumatic power device, the hand wheel 21 rotates to drive the main valve stem 18 to rotate and move axially downwards relative to the main valve stem nut 20, and drive the main valve flap 17 to move axially downwards relative to the main valve stem nut 20, when the closing stroke of the main valve flap 17 reaches 30%, the main valve flap 17 starts to close the outlet of the valve body 1 gradually, so that part of the medium enters the hydraulic control pipeline 14 through the guide sleeve 15 and flows back to the inner cavity of the spring 5, so that the downward pressure of the medium in the inner cavity of the spring 5 is increased, and together with the downward pressure of the spring 5, downward pressure is applied to the pilot valve flap 3, so that the pilot valve flap 3 moves downwards and is connected with the pilot valve seat 2 in a sealing manner, and the flow hole of the flow regulating piston sleeve 4 is communicated with the inlet of the valve body 1, the medium flows into and fills the inner cavity of the spring 5, so that the downward pressure of the medium in the inner cavity of the spring 5 is increased, the communication formed by the overflow channel 13 and the inlet of the valve body 1 is closed, at the moment, the closing stroke of the main valve flap 17 is continued, because the communication formed by the overflow channel 13 and the inlet of the valve body 1 is closed, the upward pressure of the medium on the main valve flap 17 is not provided, the moment for rotating the hand wheel 21 is reduced, the energy consumption is saved, the larger the upward pressure of the medium on the packing chamber seat 6 in the inner cavity of the spring 5 is, the better the sealing effect is, the larger the downward pressure of the medium on the pioneer valve flap 3 in the inner cavity of the spring 5 is, and the better the sealing effect is.
The utility model has the advantages that:
the advanced double control system is characterized in that the pioneer valve is completely opened and closed by taking a medium in the system as a power source, the sealing surface of the pioneer valve is protected by shortening the medium erosion time of the sealing surface of the pioneer valve under a small opening degree, the pioneer valve has a non-return function, the backflow situation occurs, the valve can be quickly closed and the whole valve is protected, the pioneer valve adopts a self-sealing cover structure, the larger the pressure is, the better the sealing effect is, the service life of the valve is greatly prolonged, the online disassembly and maintenance are convenient, and no additional requirements are required on a.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. The utility model provides an antiscour combination valves which characterized in that: an overflowing channel (13) is arranged in the valve body (1), a pioneer valve seat (2) arranged at the inlet end of the overflowing channel (13) is in sealing connection with a pioneer valve flap (3), a main valve seat (16) arranged at the outlet end of the overflowing channel (13) is in sealing connection with a main valve flap (17), and the bottom end of the main valve seat (16) is fixedly connected with the top end of a guide sleeve (15);
the top end of the pioneer valve flap (3) is connected with the bottom end of a spring (5), a flow regulating piston sleeve (4) is sleeved on the outer wall of the spring (5), the top end of the spring (5) is connected with a packing chamber seat (6), the inner cavity of the spring (5) is communicated with one end of a hydraulic control pipeline (14), the other end of the hydraulic control pipeline (14) is communicated with a guide sleeve (15), and the hydraulic control pipeline (14) and the spring (5) control the opening and closing of the pioneer valve flap (3) through hydraulic change;
the top end of the main valve flap (17) is fixedly connected with the bottom end of a main valve rod (18), a main valve cover (19) is in threaded engagement with the outer wall of the main valve rod (18) through a main valve rod nut (20), and the main valve rod (18) can perform telescopic movement and rotary movement relative to the main valve rod nut (20) and control the opening and closing of the main valve flap (17).
2. An anti-flush combination valve pack as claimed in claim 1, wherein: the bottom end of the valve body (1) is fixedly connected with the blocking plate (12), the inlet end of the overflowing channel (13) is communicated with the inlet of the valve body (1), and the outlet end of the overflowing channel (13) is communicated with the outlet of the valve body (1).
3. An anti-flush combination valve pack as claimed in claim 1, wherein: the flow regulating piston sleeve (4) is provided with a flow hole, and a medium flows into the inner cavity of the spring (5) and the hydraulic control pipeline (14) through the flow hole.
4. An anti-flush combination valve pack as claimed in claim 1, wherein: the top end of the packing chamber seat (6) is hermetically connected with a pioneer valve gland (9) through a sealing ring (7) and a pressure ring (8).
5. An anti-flush combination valve pack as claimed in claim 4, wherein: the valve cover (9) is sleeved on the valve pin (11), and the thread on the outer wall of the valve pin (11) is meshed with the valve nut (10).
6. An anti-flush combination valve pack as claimed in claim 1, wherein: the top end of the main valve rod (18) is in transmission connection with a hand wheel (21), the main valve rod (18) is controlled to be capable of performing telescopic movement and rotary movement relative to the main valve rod nut (20) through the rotary movement of the hand wheel (21), and the main valve flap (17) is controlled to be opened and closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920625254.0U CN210088084U (en) | 2019-04-30 | 2019-04-30 | Anti-scouring composite valve set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920625254.0U CN210088084U (en) | 2019-04-30 | 2019-04-30 | Anti-scouring composite valve set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210088084U true CN210088084U (en) | 2020-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920625254.0U Active CN210088084U (en) | 2019-04-30 | 2019-04-30 | Anti-scouring composite valve set |
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| Country | Link |
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| CN (1) | CN210088084U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388486A (en) * | 2019-04-30 | 2019-10-29 | 黑龙江北方阀业有限责任公司 | The compound valve group of antiscour |
-
2019
- 2019-04-30 CN CN201920625254.0U patent/CN210088084U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388486A (en) * | 2019-04-30 | 2019-10-29 | 黑龙江北方阀业有限责任公司 | The compound valve group of antiscour |
| CN110388486B (en) * | 2019-04-30 | 2024-02-23 | 黑龙江北方阀业有限责任公司 | Anti-scouring composite valve group |
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