CN212338263U - Balanced three-way reversing control valve - Google Patents
Balanced three-way reversing control valve Download PDFInfo
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- CN212338263U CN212338263U CN202021061626.0U CN202021061626U CN212338263U CN 212338263 U CN212338263 U CN 212338263U CN 202021061626 U CN202021061626 U CN 202021061626U CN 212338263 U CN212338263 U CN 212338263U
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Abstract
The utility model discloses a balanced type tee bend switching-over control valve solves current switching-over speed slow, the bulky scheduling problem of valve. The valve body is of a three-way structure and is provided with an inlet, a first outlet and a second outlet, the first sleeve and the second sleeve are respectively arranged at the inner cavities of the first outlet and the second outlet, and the sleeve walls of the first sleeve and the second sleeve are respectively provided with a first sleeve window and a second sleeve window; the valve core is movably arranged in the first sleeve and the second sleeve; when the valve core moves to the state in the first sleeve, the valve core is in sealing fit with the first sleeve, and the inlet is communicated with the second outlet. The structure of the valve internal part adopts a three-way balance type design, the output thrust of the required actuating mechanism is very small, so the action response is rapid, the structure in the valve is compact, the volume and the weight of the valve are not increased, and the installation and the maintenance are more convenient.
Description
Technical Field
The utility model belongs to the technical field of the control valve and specifically relates to a balanced type tee bend switching-over control valve.
Background
In a process water conveying pipeline for heat treatment in a steel rolling workshop of a steel mill, the flow direction of process water is required to be rapidly switched (generally within 0.2S), and the pressure of process cooling water is required to be higher (about 1.5 Mpa). The reversing valve used in the prior art has slow reversing action reaction caused by large thrust required by a pneumatic piston type actuating mechanism, and the reversing speed cannot meet the requirement; or because the balance piston is added on the upper part of the valve core, and two balance guide pipes are also added between the valve cover and the downstream pipeline, the equipment has higher installation cost, large installation workload, larger installation space and heavier complete machine, and the installation process is also limited by the size of the space, so that the installation, the maintenance and the repair are inconvenient. In addition, under the quick action and friction, the service life of the balance piston sealing ring is short, and the maintenance cost is high.
Disclosure of Invention
The utility model aims at: in order to overcome prior art's defect, the utility model provides a balanced type tee bend switching-over control valve solves current switching-over speed slow, the bulky scheduling problem of valve.
The technical scheme of the utility model: the valve body is of a three-way structure and is provided with an inlet, a first outlet and a second outlet, the first sleeve and the second sleeve are respectively arranged at the inner cavities of the first outlet and the second outlet, and the first sleeve and the second sleeve are respectively provided with a first sleeve window and a second sleeve window on the sleeve wall; the valve core is in a hollow cylinder shape, the valve core can be movably arranged in the first sleeve and the second sleeve, and the inlet is arranged below the valve core; when the valve core moves into the first sleeve, the valve core is in sealing fit with the first sleeve, and the inlet is communicated with the second outlet.
By adopting the technical scheme, the medium enters the valve body from the inlet, when the valve core moves into the first sleeve, the window of the first sleeve is blocked by the valve core, and the medium flows out of the window of the second sleeve through the middle part of the valve core and enters the second outlet; similarly, when the valve core moves into the second sleeve, the window of the second sleeve is blocked by the valve core, and the medium flows out of the window of the first sleeve and enters the first outlet, so that the reversing is realized; the structure of the valve internal part adopts a three-way balanced design, the unbalanced force of the medium pressure acting on the valve core is almost zero, the output thrust of a required actuating mechanism is very small, and only is the friction force and the closing pretightening force of a contact part, so the action response is rapid, the medium flow direction switching can be completed within 0.1 second, the structure in the valve is compact, the volume and the weight of the valve are not increased, the installation and the maintenance are more convenient, and the control requirement of the production process of a user is met.
The utility model discloses a further setting: the inlet is positioned at the bottom of the valve body, and the valve core, the valve rod, the inlet, the first sleeve and the second sleeve are coaxially arranged.
By adopting the further arrangement, the valve core is in a complete concentric guiding state of a full stroke when acting, so that the leakage quantity of the valve is ensured to be less than IV level, and the water leakage can be avoided when the pipeline is closed in the use process of a user.
The utility model discloses a further setting again: a U-shaped sealing ring used for sealing the gap between the first sleeve and the second sleeve is arranged between the first sleeve and the second sleeve, and the inner wall of the U-shaped sealing ring is also contacted with the outer wall of the valve core to form the sealing fit of the U-shaped sealing ring and the valve core.
By adopting the above further arrangement, the U-shaped sealing ring can keep the sealing of the joint in the moving process of the valve core, and under the quick action and friction of the valve core, the service life of the U-shaped sealing ring is longer, and the maintenance cost is lower.
The utility model discloses a still further set up: the opening of the U-shaped sealing ring faces to one side of the inlet, and the whole U-shaped sealing ring is installed in an inverted mode.
By adopting the further arrangement, the medium flows in from one side of the inlet, and the U-shaped sealing ring is arranged upside down, so that the sealing is firmer.
The utility model discloses a still further set up: the outer circle base angle and the outer circle top angle of the valve core are in sealing fit with the inner circle base angle of the first sleeve window and the inner circle top angle of the second sleeve window respectively.
By adopting the above further arrangement, the existing structure is utilized to form sealing, the structure is compact, and the design is ingenious.
The utility model discloses a still further set up: a plurality of reinforcing ribs which are arranged outside the valve rod in a surrounding mode are fixedly arranged between the valve core and the valve rod.
By adopting the above further arrangement, the reinforcing rib can ensure the hollow structure of the valve core, so that a medium can pass through the valve core.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of a part of the structure of an embodiment of the present invention;
FIG. 3 is a schematic view of the reversed structure of the present invention;
the valve comprises a valve body 1, a valve core 2, a valve rod 3, a first sleeve 4, a second sleeve 5, a first outlet 11, a second outlet 12, an inlet 13, a first sleeve window 41, a second sleeve window 51, a U-shaped sealing ring 6 and a reinforcing rib 31.
Detailed Description
As shown in fig. 1-3, the balanced three-way directional control valve includes a valve body 1, a valve core 2, a valve rod 3, a first sleeve 4 and a second sleeve 5, wherein the valve body 1 is of a three-way structure and has a first outlet 11, a second outlet 12 and an inlet 13, the inlet 13 is located at the bottom of the valve body 1, the first outlet 11 and the second outlet 12 are respectively located at the left side and the right side of the inlet 13, the first sleeve 4 and the second sleeve 5 are respectively installed at the inner depths of the first outlet 11 and the second outlet 12, and the first sleeve 4 and the second sleeve 5 are respectively provided with a first sleeve window 41 and a second sleeve window 51 around the sleeve walls thereof; the valve core 2 is in a hollow cylinder shape, the valve core 2 can be movably arranged in the first sleeve 4 and the second sleeve 5, the inner walls of the first sleeve 4 and the second sleeve 5 for the movement of the valve core 2 are in clearance fit with the valve core 2, and the inlet 13 is arranged below the valve core 2. When a medium enters the valve body from the inlet 13, the valve core 2 is positioned in the first sleeve 4, the valve core 2 is in sealing fit with the first sleeve 4, the first sleeve window 41 is blocked by the valve core 2, the inlet 13 is communicated with the second outlet 12, and the medium flows out of the second sleeve window 51 to the second outlet 12 through the hollow part of the valve core 2; when the valve core 2 moves into the second sleeve 5, the valve core 2 is in sealing fit with the second sleeve 5, the second sleeve window 51 is blocked by the valve core 2, the inlet 13 is communicated with the first outlet 11, and the medium flows out of the first sleeve window 41 to the first outlet 11, so that the reversing is realized. The structure of the valve internal part adopts a three-way balance type design, the inlet 13 is respectively vertical to the first outlet 11 and the second outlet 12, the unbalanced force of the medium pressure acting on the valve core 2 is almost zero, the required actuating mechanism outputs a small thrust force which is only the friction force and the closing pretightening force of the contact part, so the action reaction is rapid, and the medium flow direction switching can be completed within 0.1 second.
The valve core 2, the valve rod 3, the inlet 13, the first sleeve 4 and the second sleeve 5 are coaxially arranged, and the valve core 2 is in a complete concentric guiding state of a full stroke when acting, so that the leakage amount is effectively reduced.
A U-shaped sealing ring 6 is arranged between the first sleeve 4 and the second sleeve 5, and the inner wall of the U-shaped sealing ring 6 is also contacted with the outer wall of the valve core 2 to form the sealing fit of the U-shaped sealing ring 6 and the valve core 2. The opening of the U-shaped sealing ring 6 faces to one side of the inlet, and the whole U-shaped sealing ring is installed in an inverted mode. The U-shaped sealing ring 6 is used for sealing the clearance among the first sleeve 4, the second sleeve 5 and the valve core 2, so that the valve core 2 can keep sealing at the joint during moving.
The external circle base angle and the external circle top angle of the valve core 2 are respectively in sealing fit with the internal circle base angle of the first sleeve window 41 and the internal circle top angle of the second sleeve window 51, and a sealing layer is arranged at the corresponding sealing position. The inner diameters of the inner round bottom corner of the first sleeve window 41 and the inner round top corner of the second sleeve window 51 are slightly smaller than the outer diameter of the valve core 2, so that the pairs of opposite corners can be abutted and sealed.
A plurality of reinforcing ribs 31 which are arranged outside the valve rod 3 in a surrounding mode are fixedly arranged between the valve core 2 and the valve rod 3, and the reinforcing ribs 31 can ensure the hollow structure of the valve core 2, so that a medium can pass through the valve core 2.
Claims (6)
1. The utility model provides a balanced type tee bend switching-over control valve, including valve body, case and valve rod, its characterized in that: the valve body is of a three-way structure and is provided with an inlet, a first outlet and a second outlet, the first sleeve and the second sleeve are respectively arranged at the inner cavities of the first outlet and the second outlet, and the first sleeve and the second sleeve are respectively provided with a first sleeve window and a second sleeve window on the sleeve walls; the valve core is in a hollow cylinder shape, the valve core can be movably arranged in the first sleeve and the second sleeve, and the inlet is arranged below the valve core; when the valve core moves into the first sleeve, the valve core is in sealing fit with the first sleeve, and the inlet is communicated with the second outlet.
2. The balanced, three-way directional control valve of claim 1, further comprising: the inlet is located at the bottom of the valve body, and the valve core, the valve rod, the inlet, the first sleeve and the second sleeve are coaxially arranged.
3. The balanced, three-way directional control valve of claim 2, further comprising: a U-shaped sealing ring used for sealing the gap between the first sleeve and the second sleeve is arranged between the first sleeve and the second sleeve, and the inner wall of the U-shaped sealing ring is also contacted with the outer wall of the valve core to form the sealing fit of the U-shaped sealing ring and the valve core.
4. The balanced, three-way directional control valve of claim 3, further comprising: the opening of the U-shaped sealing ring faces to one side of the inlet, and the whole U-shaped sealing ring is installed in an inverted mode.
5. The balanced three-way directional control valve according to claim 1 or 3, characterized in that: and the excircle base angle and the excircle apex angle of the valve core are in sealing fit with the inner circle base angle of the first sleeve window and the inner circle apex angle of the second sleeve window respectively.
6. The balanced three-way directional control valve according to claim 1 or 3, characterized in that: and a plurality of reinforcing ribs which are arranged outside the valve rod in a surrounding manner are fixedly arranged between the valve core and the valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021061626.0U CN212338263U (en) | 2020-06-10 | 2020-06-10 | Balanced three-way reversing control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021061626.0U CN212338263U (en) | 2020-06-10 | 2020-06-10 | Balanced three-way reversing control valve |
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| Publication Number | Publication Date |
|---|---|
| CN212338263U true CN212338263U (en) | 2021-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021061626.0U Active CN212338263U (en) | 2020-06-10 | 2020-06-10 | Balanced three-way reversing control valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN212338263U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112796804A (en) * | 2021-01-19 | 2021-05-14 | 李磊 | Combined valve body device of coal mine hydraulic support |
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2020
- 2020-06-10 CN CN202021061626.0U patent/CN212338263U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112796804A (en) * | 2021-01-19 | 2021-05-14 | 李磊 | Combined valve body device of coal mine hydraulic support |
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