A dolly valve with a valve core convenient to replace for ash removal
Patent Information
- Application Number
- CN202522274464.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-28
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-10-28
AI Technical Summary
[0002]圆顶阀是火电厂粉煤灰综合利用中必不可少的一种截止阀门，由于火电除灰渣系统的特殊工况条件(高速度、高粉尘浓度、物料磨损性强、温度高、系统可靠性要求高)，作为火电除灰渣系统关键部件的阀门，由于受物料冲刷、腐蚀，密封部位极易磨损，需要不定时对阀门内部芯体结构进行检查和更换，以保证阀门的正常使用，避免由于阀门芯体受损而导致阀门的开关性能降低甚至失效，从而导致整个除灰渣系统停运影响整个生产系统的正常工作
[0022]1、本申请中，当工作人员在使用圆顶阀时，工作人员通过气缸活塞杆的伸出与缩回带动摇杆转动，进而使连接件转动，从而使使连接件控制阀芯的转动，进而控制圆顶阀的开启与关闭，在这个过程中，当需对阀芯进行更换时，工作人员需通过连接组件将连接件与阀芯拆卸。随后，工作人员将第一外壳与第二外壳进行拆卸即可对阀芯进行更换，从而降低了工作人员更换阀芯的难度，进而降低了工作人员的工作难度；
Smart Images
Figure CN224786451U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dome valve technology, and in particular to a dome valve for removing ash and slag that is easy to replace the valve core. Background Technology
[0002] The dome valve is an essential shut-off valve in the comprehensive utilization of fly ash in thermal power plants. Due to the special operating conditions of the ash removal system in thermal power plants (high speed, high dust concentration, strong material abrasiveness, high temperature, and high system reliability requirements), the valve, as a key component of the ash removal system, is prone to wear of its sealing parts due to material erosion and corrosion. It is necessary to inspect and replace the internal core structure of the valve from time to time to ensure the normal use of the valve and avoid the valve's reduced opening and closing performance or even failure due to damage to the valve core, which could lead to the shutdown of the entire ash removal system and affect the normal operation of the entire production system.
[0003] The dome valve is operated by a cylinder that drives the valve core to rotate. During use, the valve core is fixed to the cylinder. However, after prolonged use, the top of the valve core is prone to damage. In this case, the valve core needs to be replaced. However, because the valve core is fixed to the cylinder, replacement is difficult, increasing the workload for the operators. Utility Model Content
[0004] To solve the above problems, this utility model provides a dome valve for removing ash and slag that facilitates valve core replacement.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a dome valve for removing ash and slag with easy-to-replace valve core, comprising a first outer shell, a second outer shell mounted on the side wall of the first outer shell, two mutually symmetrical rotating grooves being opened on the inner walls of the first and second outer shells, a valve core being rotatably disposed in the two rotating grooves, a mounting plate being fixedly disposed on the side wall of the first outer shell, a cylinder being rotatably disposed on the side wall of the mounting plate, a connector being mounted on the side wall of the valve core, the connector penetrating the rotating grooves and extending to the outside of the first and second outer shells, a rocker arm being fixedly disposed on the side wall of the connector away from the valve core, the rocker arm being rotatably connected to the end of the piston rod of the cylinder, and a connecting assembly for connecting the valve core and the connector being disposed between the connector and the valve core.
[0006] By adopting the above technical solution, when the operator uses the dome valve, the extension and retraction of the cylinder piston rod drives the rocker arm to rotate, which in turn rotates the connecting part. This allows the connecting part to control the rotation of the valve core, thereby controlling the opening and closing of the dome valve. During this process, when the valve core needs to be replaced, the operator must disassemble the connecting part from the valve core using the connecting assembly. Subsequently, the operator can replace the valve core by disassembling the first and second housings, thus reducing the difficulty of valve core replacement and consequently reducing the workload for the operator.
[0007] Furthermore, a connecting groove is provided on the side wall of the valve core, and multiple fixing grooves are arrayed on the inner wall of the connecting groove. A sliding groove is provided on the side wall of the connector near the valve core. The connecting assembly includes a connecting rod slidably disposed in the connecting groove, multiple fixing members arranged in a circumferential array on the outer wall of the connecting rod, and a sliding rod slidably disposed in the sliding groove. The sliding rod is fixed to the connecting rod, and the fixing members are matched with the fixing groove.
[0008] By adopting the above technical solution, when the operator needs to disassemble the connector and the valve core, the operator needs to slide the slide rod away from the valve core. This causes the connecting rod and the fixing component to slide away from the valve core under the action of the slide rod, thereby separating the connecting rod and the fixing component from the connecting groove and the fixing groove. At this point, the operator can disassemble the connector and the valve core. Subsequently, when the operator needs to connect the connector and the valve core, the operator only needs to slide the connecting rod and the fixing component into the connecting groove and the fixing groove respectively using the slide rod.
[0009] Furthermore, a movable groove is provided through the outer wall of the connector, and a movable component is slidably disposed in the movable groove, the movable component being fixed to the slide rod.
[0010] By adopting the above technical solution, when the staff needs to slide the slide bar, the staff needs to slide the moving part, so that the slide bar slides under the action of the moving part. In this process, the moving part reduces the difficulty for the staff to slide the slide bar, thereby reducing the difficulty of the staff's work.
[0011] Furthermore, two limiting grooves are symmetrically formed on the inner wall of the moving groove. A limiting rod is slidably arranged in each of the two limiting grooves. Both limiting rods are fixed to the moving part. A first spring is fixedly arranged on the side wall of each limiting rod away from the moving part. The other end of each of the two first springs is fixedly arranged on the inner wall adjacent to the limiting groove.
[0012] By adopting the above technical solution, when the operator slides the moving part, the limiting rod slides under the action of the moving part. During this process, the limiting rod limits the moving part, thereby reducing the probability of the moving part rotating and improving the stability of the device. In addition, the first spring reduces the probability of the limiting rod sliding when subjected to external force, thereby improving the stability of the device.
[0013] Furthermore, two symmetrical sealing grooves are formed on the inner wall of the moving groove. The sealing grooves are connected to the limiting groove. A sealing element is slidably arranged in both sealing grooves, and both sealing elements are fixed to the moving part.
[0014] By adopting the above technical solution, the sealing element seals the moving groove, thereby reducing the probability of dust and impurities entering the moving groove and improving the sealing performance of the device.
[0015] Furthermore, a second spring is fixedly installed on the side wall of the moving part away from the slide rod, and the other end of the second spring is installed on the inner wall of the slide groove.
[0016] By adopting the above technical solution, the second spring reduces the probability of the moving part sliding when subjected to external force, thereby improving the stability of the device.
[0017] Furthermore, the first outer shell and the second outer shell are fixed to each other by nuts and bolts.
[0018] By adopting the above technical solution, nuts and bolts reduce the difficulty for workers to install and disassemble the first and second outer shells, thereby reducing the difficulty of their work.
[0019] Furthermore, rubber components are provided on both sides of the sealing element.
[0020] By adopting the above technical solutions, rubber has good elasticity, and rubber parts made of rubber material further improve the sealing performance of the seals.
[0021] In summary, this utility model has the following beneficial effects:
[0022] 1. In this application, when the operator uses the dome valve, the extension and retraction of the cylinder piston rod drives the rocker arm to rotate, which in turn rotates the connecting part. This allows the connecting part to control the rotation of the valve core, thereby controlling the opening and closing of the dome valve. During this process, when the valve core needs to be replaced, the operator needs to disassemble the connecting part from the valve core using the connecting assembly. Subsequently, the operator can replace the valve core by disassembling the first housing and the second housing, thus reducing the difficulty of replacing the valve core and consequently reducing the workload for the operator.
[0023] 2. In this application, when the operator needs to disassemble the connector and the valve core, the operator needs to slide the slide rod away from the valve core, thereby causing the connecting rod and the fixing part to slide away from the valve core under the action of the slide rod, thus separating the connecting rod and the fixing part from the connecting groove and the fixing groove. At this time, the operator can disassemble the connector and the valve core. Subsequently, when the operator needs to connect the connector and the valve core, the operator only needs to slide the connecting rod and the fixing part into the connecting groove and the fixing groove respectively using the slide rod.
[0024] 3. In this application, when the worker needs to slide the slide bar, the worker needs to slide the moving part, so that the slide bar slides under the action of the moving part. In this process, the moving part reduces the difficulty for the worker to slide the slide bar, thereby reducing the difficulty of the worker's work. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;
[0026] Figure 2 This is a schematic diagram of the structure of the first outer shell and the valve core in an embodiment of this utility model;
[0027] Figure 3 This is a schematic diagram of the valve core and connecting parts in an embodiment of this utility model;
[0028] Figure 4 This is a cross-sectional structural diagram of the connecting component in an embodiment of this utility model;
[0029] Figure 5 This is a schematic diagram of the structure of the connector and the connecting assembly in the embodiment of this utility model.
[0030] In the diagram: 1. First outer shell; 11. Second outer shell; 12. Rotating groove; 13. Valve core; 14. Mounting plate; 15. Cylinder; 16. Connecting piece; 17. Rocker arm; 2. Connecting groove; 21. Fixing groove; 22. Sliding groove; 3. Connecting assembly; 31. Connecting rod; 32. Fixing piece; 33. Sliding rod; 4. Moving groove; 41. Moving piece; 5. Limiting groove; 51. Limiting rod; 52. First spring; 6. Sealing groove; 61. Sealing piece; 7. Second spring. Detailed Implementation
[0031] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0032] like Figure 1-5 As shown in the embodiment of this application, a dome valve for easy replacement of valve cores for ash removal is disclosed, including a first outer shell 1, a second outer shell 11, a valve core 13, a mounting plate 14, a cylinder 15, a connector 16, a rocker arm 17, a connecting assembly 3, a moving part 41, a limiting rod 51, and a first spring 52. The second outer shell 11 is mounted on the side wall of the first outer shell 1, and two mutually symmetrical rotating grooves 12 are opened on the inner walls of the first outer shell 1 and the second outer shell 11. The valve core 13 is rotatably disposed in the two rotating grooves 12. The mounting plate 14 is a rectangular plate structure and is fixedly disposed on the side wall of the first outer shell 1. The cylinder 15 is rotatably disposed on the side wall of the mounting plate 14. The connector 16 is a round rod structure with its axis horizontal. The connector 16 is mounted on the side wall of the valve core 13, and the connector 16 passes through the rotating grooves 12 and extends to the outside of the first outer shell 1 and the second outer shell 11. The rocker arm 17 is fixedly mounted on the side wall of the connector 16 away from the valve core 13, and the rocker arm 17 is rotatably connected to the end of the piston rod of the cylinder 15.
[0033] When using the dome valve, the operator extends and retracts the piston rod of cylinder 15, causing the rocker arm 17 to rotate, which in turn rotates the connecting piece 16. This allows the connecting piece 16 to control the rotation of the valve core 13, thereby controlling the opening and closing of the dome valve. During this process, when the valve core 13 needs to be replaced, the operator must disassemble the connecting piece 16 from the valve core 13 using the connecting assembly 3. Subsequently, the operator can replace the valve core 13 by disassembling the first housing 1 and the second housing 11, thus reducing the difficulty of replacing the valve core 13 and consequently reducing the workload for the operator.
[0034] A connecting groove 2 is formed on the side wall of the valve core 13, and multiple fixing grooves 21 are arrayed on the inner wall of the connecting groove 2. A sliding groove 22 is formed on the side wall of the connector 16 near the valve core 13. A connecting assembly 3 is disposed between the connector 16 and the valve core 13 to connect the valve core 13 and the connector 16. The connecting assembly 3 includes a connecting rod 31, a fixing member 32, and a sliding rod 33. The connecting rod 31 is slidably disposed within the connecting groove 2. Multiple fixing members 32 are arranged in a circumferential array on the outer wall of the connecting rod 31, and the fixing members 32 and fixing grooves 21 are matched. The sliding rod 33 is slidably disposed within the sliding groove 22, and the sliding rod 33 is fixed to the connecting rod 31.
[0035] When the operator needs to disassemble the connector 16 and the valve core 13, the operator needs to slide the slide rod 33 away from the valve core 13. This causes the connecting rod 31 and the fixing member 32 to slide away from the valve core 13 under the action of the slide rod 33, thereby separating the connecting rod 31 and the fixing member 32 from the connecting groove 2 and the fixing groove 21. At this time, the operator can then disassemble the connector 16 and the valve core 13. Subsequently, when the operator needs to connect the connector 16 and the valve core 13, the operator only needs to slide the connecting rod 31 and the fixing member 32 into the connecting groove 2 and the fixing groove 21 respectively using the slide rod 33.
[0036] A movable groove 4 is provided through the outer wall of the connector 16, and the movable part 41 is slidably disposed in the movable groove 4. The movable part 41 and the slide rod 33 are fixed to each other.
[0037] When the worker needs to slide the slide bar 33, the worker needs to slide the moving part 41, which in turn makes the slide bar 33 slide under the action of the moving part 41. In this process, the moving part 41 reduces the difficulty for the worker to slide the slide bar 33, thereby reducing the difficulty of the worker's work.
[0038] Two limiting grooves 5 are symmetrically formed on the inner wall of the moving groove 4. The limiting rod 51 is slidably disposed in the limiting groove 5 and is fixed to the moving part 41. One end of the first spring 52 is fixedly disposed on the side wall of the limiting rod 51 away from the moving part 41, and the other end of the first spring 52 is fixedly disposed on the inner wall of the limiting groove 5.
[0039] When the operator slides the moving part 41, the limiting rod 51 slides under the action of the moving part 41. During this process, the limiting rod 51 limits the moving part 41, thereby reducing the probability of the moving part 41 rotating and thus improving the stability of the device. In addition, the first spring 52 reduces the probability of the limiting rod 51 sliding when subjected to external force, thereby improving the stability of the device.
[0040] To improve the sealing performance of the device, two symmetrical sealing grooves 6 are formed on the inner wall of the moving groove 4. The sealing grooves 6 are interconnected with the limiting groove 5. A sealing element 61 is slidably installed in each of the two sealing grooves 6, and both sealing elements 61 are fixed to the moving element 41. The sealing elements 61 seal the moving groove 4, thereby reducing the probability of dust and impurities entering the moving groove 4, thus improving the sealing performance of the device.
[0041] To improve the stability of the device, a second spring 7 is fixedly installed on the side wall of the moving part 41 away from the slide bar 33, and the other end of the second spring 7 is installed on the inner wall of the slide groove 22. The second spring 7 reduces the probability of the moving part 41 sliding when subjected to external force, thereby improving the stability of the device.
[0042] To reduce the difficulty of the work for the workers, the first outer shell 1 and the second outer shell 11 are fixed together by nuts and bolts. The nuts and bolts reduce the difficulty for the workers to install and disassemble the first outer shell 1 and the second outer shell 11, thereby reducing the difficulty of the workers' work.
[0043] To further improve the sealing performance of the seal 61, rubber components are provided on both sides of the seal 61. Rubber has good elasticity, and the rubber components made of rubber further improve the sealing performance of the seal 61.
[0044] The operating principle of the dome valve for ash removal with easy valve core replacement in this embodiment is as follows: When the operator uses the dome valve, the extension and retraction of the piston rod of the cylinder 15 rotates the rocker arm 17, which in turn rotates the connecting piece 16. This allows the connecting piece 16 to control the rotation of the valve core 13, thereby controlling the opening and closing of the dome valve. During this process, when the valve core 13 needs to be replaced, the operator needs to disassemble the connecting piece 16 from the valve core 13 using the connecting assembly 3. Subsequently, the operator can replace the valve core 13 by disassembling the first outer shell 1 and the second outer shell 11, thus reducing the difficulty of replacing the valve core 13 and consequently reducing the workload for the operator.
[0045] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A dome valve for removing ash and slag with an easily replaceable valve core, comprising a first housing (1), characterized in that: A second outer shell (11) is installed on the side wall of the first outer shell (1). Two symmetrical rotating grooves (12) are opened on the inner walls of the first outer shell (1) and the second outer shell (11). A valve core (13) is rotatably arranged in the two rotating grooves (12). A mounting plate (14) is fixedly installed on the side wall of the first outer shell (1). A cylinder (15) is rotatably arranged on the side wall of the mounting plate (14). A connector (16) is installed on the side wall of the valve core (13). The connector (16) passes through the rotating groove (12) and extends to the outside of the first outer shell (1) and the second outer shell (11). A rocker arm (17) is fixedly installed on the side wall of the connector (16) away from the valve core (13). The rocker arm (17) is rotatably connected to the piston rod end of the cylinder (15). A connecting assembly (3) for connecting the valve core (13) and the connector (16) is provided between the connector (16) and the valve core (13).
2. The dome valve for ash and slag removal with easy valve core replacement according to claim 1, characterized in that: The valve core (13) has a connecting groove (2) on its side wall. The inner wall of the connecting groove (2) has multiple fixing grooves (21) arranged in an array. The connecting member (16) has a sliding groove (22) on its side wall near the valve core (13). The connecting assembly (3) includes a connecting rod (31) slidably disposed in the connecting groove (2), multiple fixing members (32) arranged in a circumferential array on the outer wall of the connecting rod (31), and a sliding rod (33) slidably disposed in the sliding groove (22). The sliding rod (33) is fixed to the connecting rod (31), and the fixing member (32) is matched with the fixing groove (21).
3. A dome valve for ash and slag removal with easy valve core replacement according to claim 2, characterized in that: A movable groove (4) is provided through the outer wall of the connector (16), and a movable component (41) is slidably disposed in the movable groove (4). The movable component (41) is fixed to the slide rod (33).
4. A dome valve for ash and slag removal with easy valve core replacement according to claim 3, characterized in that: Two limiting grooves (5) are symmetrically opened on the inner wall of the moving groove (4). Limiting rods (51) are slidably arranged in both limiting grooves (5). Both limiting rods (51) are fixed to the moving part (41). A first spring (52) is fixedly arranged on the side wall of the two limiting rods (51) away from the moving part (41). The other end of the two first springs (52) is fixedly arranged on the inner wall adjacent to the limiting groove (5).
5. A dome valve for ash and slag removal with easy valve core replacement according to claim 4, characterized in that: The inner wall of the moving groove (4) has two symmetrical sealing grooves (6), which are connected to the limiting groove (5). Both sealing grooves (6) are slidably provided with sealing elements (61), and both sealing elements (61) are fixed to the moving element (41).
6. A dome valve for ash and slag removal with easy valve core replacement according to claim 3, characterized in that: A second spring (7) is fixedly installed on the side wall of the movable part (41) away from the slide bar (33), and the other end of the second spring (7) is installed on the inner wall of the slide groove (22).
7. A dome valve for ash and slag removal with easy valve core replacement according to claim 1, characterized in that: The first outer shell (1) and the second outer shell (11) are fixed to each other by nuts and bolts.
8. A dome valve for ash and slag removal with easy valve core replacement according to claim 5, characterized in that: Rubber parts are provided on both sides of the sealing element (61).