Rotary valve with water cooling structure
By introducing a water-cooled structure into the rotary valve to cool the impeller mechanism and a circulating cooling system, the problem of friction jamming or leakage caused by uneven thermal expansion of the impeller at high temperatures is solved, achieving long service life and low-cost operation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 常州绿青环保科技有限公司
- Filing Date
- 2025-09-23
- Publication Date
- 2026-05-19
AI Technical Summary
Existing rotary valves lack cooling structures at high temperatures, causing uneven expansion between the impeller and valve body due to differences in their thermal expansion coefficients, leading to friction jamming or leakage problems.
A rotary valve with a water-cooled structure was designed, including a coolable impeller mechanism, a cooling medium input and discharge mechanism, and a complete impeller cooling circulation system. The cooling medium absorbs and discharges heat from the impeller, avoiding uneven thermal expansion.
This effectively avoids friction jamming or leakage between the impeller and the valve body, extends the service life of the equipment, and reduces operating costs by recycling the cooling medium.
Smart Images
Figure CN224257567U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rotary valve technology, specifically a rotary valve with a water-cooling structure. Background Technology
[0002] Rotary valves typically consist of components such as valve body, valve cover, valve core, and sealing surface, and are mostly made of stainless steel. They are suitable for conveying powder and granular materials or for fluid control scenarios. Their core working principle is to control the on / off state of the medium or regulate the flow rate by rotating the rotating component (usually a blade or baffle) within an angle of 90° or smaller.
[0003] The existing Chinese patent CN214732752U, disclosed on November 16, 2021, discloses a rotary valve, including a valve body, a rotating shaft, and an impeller composed of several blades. The valve body has a feed inlet, a valve chamber, and a discharge outlet arranged sequentially along the direction of gravity. The valve chamber has an exhaust port on its wall, and the feed inlet, valve chamber, and exhaust port are sequentially connected. The rotating shaft passes through the valve chamber, and the impeller is located in the valve chamber and fixedly sleeved on the rotating shaft. The blades are movably sealed to the wall of the valve chamber, so that two adjacent blades form an independent partition between the blades and the wall of the valve chamber for temporarily carrying materials. The rotary valve also includes a floating top plate located in the valve chamber, which is sleeved on the rotating shaft. The side wall of the valve chamber perpendicular to the axis of the rotating shaft is the limiting wall of the valve chamber. The floating top plate and the limiting wall are buffered by a sealing ring, which surrounds the outer periphery of the rotating shaft. The side of the floating top plate away from the limiting wall is limited and abutted by the rotating shaft.
[0004] However, in actual use, when the impeller inside the valve body rotates for a long time inside the valve cavity, the impeller lacks a corresponding cooling structure for cooling. At high temperatures, the impeller and the valve body have different coefficients of thermal expansion due to their materials, which can lead to uneven expansion. If the impeller expands more, it will rub against the valve body and get stuck. Conversely, if it expands less, a gap will be created, which can cause leakage.
[0005] Therefore, we propose a novel rotary valve with a water-cooling structure to solve the above-mentioned technical problems. Utility Model Content
[0006] (a) Technical problems to be solved
[0007] To address the shortcomings of existing technologies, this utility model provides a rotary valve with a water-cooling structure, which solves the problem that the aforementioned devices lack an impeller cooling mechanism for cooling in actual use.
[0008] (II) Technical Solution
[0009] To achieve the above objectives, this utility model provides the following technical solution: a rotary valve with a water-cooling structure, comprising:
[0010] Rotary valve body;
[0011] A coolable impeller mechanism is rotatably mounted inside the center of the rotary valve body and has a rotary feeding and circulating cooling structure.
[0012] A cooling medium input mechanism is installed on the left end of the rotary valve body by screws and sleeved on the left circumferential side of the coolable impeller mechanism, and has a structure for receiving and inputting cooling medium.
[0013] A cooling medium discharge mechanism is installed on the right end of the rotary valve body by screws and sleeved on the right circumference of the coolable impeller mechanism, and has a structure for discharging cooling medium.
[0014] An impeller rotation conveying mechanism is mounted on the right end of the cooling medium discharge mechanism by screws and is connected to the coolable impeller mechanism.
[0015] Preferably, the rotary valve body includes a rotary valve body shell, the lower end of which is fixedly connected to a valve body discharge seat for discharging materials, the upper end of which is fixedly connected to a valve body input pipe for inputting materials, and the outer wall of the rotary valve body shell is fitted with a maintenance cover plate for easy maintenance of internal components by screws.
[0016] Preferably, the coolable impeller mechanism includes an impeller body, with nine circumferentially arranged impeller gap grooves for temporarily storing materials on the circumference of the impeller body. A hollow shaft is fixedly connected to the center of the interior of the impeller body, and outer protruding rings are fixedly connected to both ends of the hollow shaft. Medium slots for the flow of cooling medium are opened on the circumference of the outer protruding rings. The hollow shaft is sleeved on the outer shell of the rotary valve body, and the impeller body is sleeved in the center of the interior of the rotary valve body.
[0017] Preferably, the cooling medium input mechanism includes a cover, with a medium input pipe for receiving cooling medium fixedly connected through the middle of the upper end of the cover, and an input sleeve fixedly connected through the lower end of the medium input pipe. The input sleeve has a discharge cross cavity inside, and the input sleeve is sleeved on the circumference of the outer protrusion ring on the left end through the discharge cross cavity, and the discharge cross cavity is connected to the medium groove hole.
[0018] Preferably, the cooling medium discharge mechanism includes a hollow seat, with a medium discharge pipe for discharging cooling medium fixedly connected through the middle of the upper end of the hollow seat, and a discharge sleeve fixedly connected through the lower end of the medium discharge pipe. The discharge sleeve has a discharge cross cavity inside, and the discharge sleeve is sleeved on the circumference of the outer protrusion ring on the right end through the discharge cross cavity, and the discharge cross cavity is connected to the medium groove hole.
[0019] Preferably, the impeller rotation conveying mechanism includes a rotary motor that provides the lifting driving force, a speed reducer for adjusting the rotation speed is screwed onto the output end of the rotary motor, a first coupling is fixed to the output shaft end of the speed reducer, the first coupling is fixed to the right end of the hollow shaft, and the speed reducer is mounted on the hollow base by screws.
[0020] Preferably, the medium discharge pipe is connected to the input pipe of the condenser to achieve circulating cooling of the cooling medium.
[0021] Preferably, the medium input pipe is connected to the output pipe of the condenser to receive the cooled medium.
[0022] (III) Beneficial Effects
[0023] Compared with the prior art, this utility model provides a rotary valve with a water-cooling structure, which has the following advantages:
[0024] 1. This utility model constructs a complete impeller cooling circulation system by setting up a coolable impeller mechanism, a cooling medium input mechanism, and a cooling medium discharge mechanism. The cooling medium enters the coolable impeller mechanism through the cooling medium input mechanism. When it flows through the hollow shaft and the medium groove, it can directly carry away the heat generated by the rotation of the impeller body. Then it is discharged through the cooling medium discharge mechanism, which effectively avoids the impeller from excessive expansion due to high temperature. It solves the problem of friction jamming or leakage caused by uneven thermal expansion between the impeller and the valve body, and extends the service life of the equipment.
[0025] 2. This utility model uses a cooling medium input mechanism and a cooling medium discharge mechanism in conjunction with a condenser to form a circulation loop, which allows for the reuse of cooling medium, reducing operating costs. The overall structure is compact and easy to assemble, making it suitable for high-temperature conveying scenarios of various powder and granular materials. Attached Figure Description
[0026] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0027] Figure 2 This is a cross-sectional structural diagram of the cooling medium discharge mechanism of this utility model;
[0028] Figure 3 This is a schematic diagram of the cooling medium input mechanism of this utility model;
[0029] Figure 4 This is a schematic diagram of the coolable impeller mechanism of this utility model;
[0030] Figure 5 This is a schematic diagram of the impeller rotation conveying mechanism of this utility model.
[0031] In the picture:
[0032] 1. Impeller body; 11. Impeller clearance groove; 12. Hollow shaft; 13. Medium groove hole; 14. Outer convex ring; 2. Valve body shell; 21. Valve body inlet pipe; 22. Valve body outlet seat; 23. Inspection cover plate; 3. Hollow seat; 4. Reducer; 41. First coupling; 5. Rotary motor; 6. Medium outlet pipe; 61. Outlet sleeve; 62. Outlet cross sleeve cavity; 7. Enclosure cover; 71. Medium inlet pipe; 72. Inlet sleeve; 73. Outlet cross sleeve cavity. Detailed Implementation
[0033] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0034] Example 1
[0035] This embodiment provides a technical solution: a rotary valve with a water-cooling structure, such as... Figures 1-5 As shown, it includes a rotary valve body, a coolable impeller mechanism, a cooling medium input mechanism, a cooling medium discharge mechanism, and an impeller rotation conveying mechanism.
[0036] The rotary valve body includes a rotary valve body shell 2, which is integrally cast and has high strength. A valve body discharge seat 22 for discharging materials is fixedly connected to the lower end of the rotary valve body shell 2. The rotary valve body shell 2 can be installed at the inlet of the receiving equipment through the valve body discharge seat 22. A valve body input pipe 21 for inputting materials is fixedly connected to the upper end of the rotary valve body shell 2. The rotary valve body shell 2 can be installed at the discharge port of the discharging equipment through the valve body input pipe 21. A maintenance cover 23 for easy maintenance of internal components is installed on the outer wall of the rotary valve body shell 2 by screws. The screw installation makes it easy to open for maintenance.
[0037] The impeller rotation conveying mechanism is mounted on the right end of the cooling medium discharge mechanism by screws and is connected to the coolable impeller mechanism. The impeller rotation conveying mechanism includes a rotary motor 5 that lifts the driving force, which can effectively lift the power to drive rotation. A speed reducer 4 for adjusting the speed is mounted on the output end of the rotary motor 5 by screws, which is convenient for installation and removal by screws. The output shaft end of the speed reducer 4 is fixedly connected to the first coupling 41. When the output shaft of the speed reducer 4 is driven by the rotary motor 5, it can rotate, and then drive the first coupling 41 to rotate. The first coupling 41 is fixedly connected to the right end of the hollow shaft 12. When the first coupling 41 rotates, it can drive the hollow shaft 12 to rotate. The speed reducer 4 is mounted on the hollow seat 3 by screws, which is convenient for installation and connection.
[0038] like Figure 1 and Figure 4 As shown, a coolable impeller mechanism is rotatably installed inside the rotary valve body. The coolable impeller mechanism includes an impeller body 1. Nine circumferentially arranged impeller gap grooves 11 for temporarily storing materials are formed on the circumference of the impeller body 1, facilitating material reception and conveying. A hollow shaft 12 is fixedly connected to the center of the impeller body 1. The hollow shaft 12, when rotating, drives the impeller body 1 to rotate. Outer protruding rings 14 are fixedly connected to both ends of the hollow shaft 12. The hollow shaft 12 is limited by the outer protruding rings 14 at both ends. The circumference of 14 is provided with a medium groove 13 for the flow of cooling medium. The cooling medium can be input into the hollow shaft 12 through the medium groove 13. The temperature of the cooling medium inside the hollow shaft 12 is received by the impeller body 1, thereby reducing the temperature of the impeller body 1 and preventing the thermal expansion of the impeller body 1 from causing rotation jamming or changes in the sealing gap. The hollow shaft 12 is sleeved through the valve body shell 2 and can be positioned and rotated. The impeller body 1 is sleeved in the middle of the inside of the valve body shell 2, which facilitates rotational feeding and has the ability of rotational feeding and circulating cooling.
[0039] Example 2
[0040] This embodiment is a further optimization based on Embodiment 1. The parts that are the same as those described above will not be repeated here. Figures 1-4As shown, to further better realize this utility model, the following arrangement is specifically adopted: the cooling medium input mechanism is installed and connected to the left end of the rotary valve body by screws, and is sleeved on the left circumference of the coolable impeller mechanism. The cooling medium input mechanism includes a cover 7, which can be installed on the rotary valve body by screws. A medium input pipe 71 for receiving cooling medium is fixedly connected through the middle of the upper end of the cover 7. The medium input pipe 71 can be positioned and transported on the cover 7. An input sleeve 72 is fixedly connected through the lower end of the medium input pipe 71. The medium input pipe 71 can input the medium into the input sleeve 72. The inside of the input sleeve 72 is provided with a discharge cross cavity 73. The medium can be located in the discharge cross cavity 73 of the input sleeve 72. The input sleeve 72 is correspondingly sleeved on the circumference of the left outer protrusion ring 14 through the discharge cross cavity 73. It can be installed accordingly. The discharge cross cavity 73 is connected to the medium groove hole 13, which facilitates the flow of the medium and has the ability to receive and input the cooling medium.
[0041] The medium inlet pipe 71 is connected to the outlet pipe of the condenser to receive the cooled medium.
[0042] The cooling medium discharge mechanism is installed on the right end of the rotary valve body by screws and sleeved on the right circumference of the coolable impeller mechanism. The cooling medium discharge mechanism includes a hollow seat 3, which can be installed on the rotary valve body. A medium discharge pipe 6 for discharging cooling medium is fixedly connected through the middle of the upper end of the hollow seat 3. The medium discharge pipe 6 can stably transport the medium on the hollow seat 3. A discharge sleeve 61 is fixedly connected through the lower end of the medium discharge pipe 6. The medium discharge pipe 6 can receive the medium discharged by the discharge sleeve 61. A discharge cross cavity 62 is opened inside the discharge sleeve 61. The discharge sleeve 61 can receive the medium through the discharge cross cavity 62. The discharge sleeve 61 is sleeved on the circumference of the outer protrusion ring 14 on the right end through the discharge cross cavity 62. It can be installed in a corresponding sleeve. The discharge cross cavity 62 is connected to the medium groove hole 13 and has the ability to discharge cooling medium.
[0043] The medium discharge pipe 6 is connected to the input pipe of the condenser to achieve circulating cooling of the cooling medium.
[0044] Working principle: When in use, first complete the equipment assembly and pipeline connection: install the coolable impeller mechanism inside the valve body shell 2, fix the cooling medium input mechanism and cooling medium discharge mechanism to both ends of the valve body shell 2 with screws, and connect them to the outer protrusion ring 14. The impeller rotation conveying mechanism is installed on the hollow seat 3 and connected to the hollow shaft 12 through the first coupling 41. Finally, connect the cooling medium circulation pipeline and the material conveying pipeline.
[0045] After the equipment is started, the rotary motor 5 drives the impeller body 1 to rotate via the reducer 4 to realize material conveying. At the same time, the cooling medium flows in the circulation loop, enters the coolable impeller mechanism through the cooling medium input mechanism, absorbs heat and is discharged by the cooling medium discharge mechanism. After being cooled by the condenser, it re-enters the circulation, continuously cooling the impeller and avoiding uneven thermal expansion.
[0046] The wiring diagram of the rotary motor 5 in this utility model is common knowledge in the field. Its working principle is a well-known technology. The appropriate model is selected according to actual use, so the control method and wiring layout will not be explained in detail.
[0047] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.
Claims
1. A rotary valve with a water-cooling structure, characterized in that, include: Rotary valve body; A coolable impeller mechanism is rotatably mounted inside the center of the rotary valve body and has a rotary feeding and circulating cooling structure. A cooling medium input mechanism is installed on the left end of the rotary valve body by screws and sleeved on the left circumferential side of the coolable impeller mechanism, and has a structure for receiving and inputting cooling medium. A cooling medium discharge mechanism is installed on the right end of the rotary valve body by screws and sleeved on the right circumference of the coolable impeller mechanism, and has a structure for discharging cooling medium. An impeller rotation conveying mechanism is mounted on the right end of the cooling medium discharge mechanism by screws and is connected to the coolable impeller mechanism.
2. A rotary valve with a water-cooling structure according to claim 1, characterized in that: The rotary valve body includes a rotary valve body shell (2), the lower end of which is fixedly connected to a valve body discharge seat (22) for discharging materials, and the upper end of which is fixedly connected to a valve body input pipe (21) for inputting materials. The outer wall of the rotary valve body shell (2) is fitted with a maintenance cover plate (23) for easy maintenance of internal components by screws.
3. A rotary valve with a water-cooling structure according to claim 1, characterized in that: The coolable impeller mechanism includes an impeller body (1), and nine impeller gap grooves (11) arranged in a circular array on the periphery of the impeller body (1) for temporarily storing materials. A hollow shaft (12) is fixedly connected to the middle of the interior of the impeller body (1). An outer protruding ring (14) is fixedly connected to both ends of the hollow shaft (12). A medium groove hole (13) for the cooling medium to flow is opened on the periphery of the outer protruding ring (14). The hollow shaft (12) is sleeved on the outer shell of the rotary valve body (2), and the impeller body (1) is sleeved in the middle of the interior of the rotary valve body (2).
4. A rotary valve with a water-cooling structure according to claim 1, characterized in that: The cooling medium input mechanism includes a cover (7), with a medium input pipe (71) for receiving cooling medium fixedly connected through the middle of the upper end of the cover (7), and an input sleeve (72) fixedly connected through the lower end of the medium input pipe (71). The input sleeve (72) has a discharge cross cavity (73) inside, and the input sleeve (72) is sleeved on the circumference of the outer convex ring (14) on the left end through the discharge cross cavity (73), and the discharge cross cavity (73) is connected to the medium groove hole (13).
5. A rotary valve with a water-cooling structure according to claim 1, characterized in that: The cooling medium discharge mechanism includes a hollow seat (3), with a medium discharge pipe (6) for discharging cooling medium through and fixedly connected to the middle of the upper end of the hollow seat (3). A discharge sleeve (61) is connected through and fixedly connected to the lower end of the medium discharge pipe (6). A discharge cross cavity (62) is opened inside the discharge sleeve (61). The discharge sleeve (61) is sleeved on the periphery of the outer protrusion ring (14) on the right end through the discharge cross cavity (62), and the discharge cross cavity (62) is connected to the medium groove hole (13).
6. A rotary valve with a water-cooling structure according to claim 1, characterized in that: The impeller rotation conveying mechanism includes a rotary motor (5) that provides the driving force. A speed reducer (4) for adjusting the rotation speed is screwed onto the output end of the rotary motor (5). A first coupling (41) is fixed to the output shaft end of the speed reducer (4). The first coupling (41) is fixed to the right end of the hollow shaft (12). The speed reducer (4) is mounted on the hollow seat (3) by screws.
7. A rotary valve with a water-cooling structure according to claim 5, characterized in that: The medium discharge pipe (6) is connected to the input pipe of the condenser to achieve circulating cooling of the cooling medium.
8. A rotary valve with a water-cooling structure according to claim 4, characterized in that: The medium input pipe (71) is connected to the output pipe of the condenser to receive the cooled medium.