Valve device capable of being opened and closed remotely

Abstract

The utility model discloses a valve device capable of being remotely controlled to be opened and closed. The valve device comprises a valve body, a gear driving assembly, a control electric box and a control button. An input port and an output port of the valve body are respectively connected with a sludge conveying pipe so as to realize sludge conveying; a valve element control rod of the valve body is connected with the gear driving assembly, the control electric box is connected with the gear driving assembly and the control button, the control button is arranged in a remote central control room, and the control button is used for sending a control instruction to the control electric box. The control electric box is used for controlling the gear driving assembly to rotate in the forward direction or the reverse direction so as to drive the valve element control rod to rotate in the forward direction or the reverse direction, and then the opening degree of the valve body can be adjusted. The sludge conveying device has the advantages of being compact in structure, easy to disassemble and assemble, convenient and fast to operate and the like, the conveying amount of sludge is automatically controlled, and the requirement of continuously-changing boiler combustion working conditions for the sludge entering the boiler is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of valve control, and in particular relates to a valve device for remotely controlling a switch. Background Art

[0002] In waste incineration power plants, sludge is treated by mixing domestic waste with municipal sludge. After being treated by a dryer, the sludge with a solid content that meets the standard needs to be adjusted by a manual ball valve before entering the furnace. The valve has a diameter of 100mm. The electric adjustment device on the market is expensive and large in size. There is no room for installing such a set of electric adjustment devices in the incineration workshop. At present, the opening of the manual ball valve is manually adjusted by workers.

[0003] Normally, the moisture content of the sludge entering the furnace after drying is 65%. This working fluid has both solid and fluid properties and does not have complete fluid physical properties, so quantitative high-precision adjustment is not possible. If the sludge entering the furnace needs to be fully mixed with the garbage to maintain good combustion conditions, the sludge flow valve needs to be adjusted frequently to adapt. When the combustion conditions are good, the sludge flow rate can be increased to increase the sludge processing capacity and control the furnace temperature; when the combustion conditions deteriorate, the sludge flow rate needs to be reduced in time to restore combustion as soon as possible. Therefore, the manual adjustment of the ball valve opening is difficult to meet the ever-changing boiler combustion conditions for the sludge entering the furnace. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the existing manual control of the ball valve opening is difficult to meet the ever-changing boiler combustion conditions for the demand for boiler sludge, and to provide a valve device with a compact structure, easy disassembly and assembly, and convenient operation. To achieve the above purpose, the utility model can adopt the following technical solutions:

[0005] A valve device for remotely controlling a switch, comprising: a valve body, a gear drive assembly, a control electrical box and a control button; the input port and the output port of the valve body are respectively connected to a sludge conveying pipe to realize sludge conveying; the valve core control rod of the valve body is connected to the gear drive assembly, the control electrical box is respectively connected to the gear drive assembly and the control button, the control button is arranged in a remote control room, the control button is used to send a control instruction to the control electrical box, the control electrical box is used to control the gear drive assembly to rotate forward or reverse, so as to drive the valve core control rod to rotate forward or reverse, thereby realizing the opening adjustment of the valve body.

[0006] As a further improvement of the present invention, the gear drive assembly includes a control gear, a transmission gear, a transmission shaft and a drive motor; the control gear center is connected and fixed to the valve core control rod, the control gear is meshed with the transmission gear, the transmission gear is connected to the output end of the drive motor through the transmission shaft, and the drive motor is connected to the control electrical box through a cable.

[0007] As a further improvement of the present invention, an overcurrent protector is provided on the cable, and the overcurrent protector is electrically connected to the control electrical box.

[0008] As a further improvement of the present invention, the gear drive assembly is arranged on a fixed bracket.

[0009] As a further improvement of the utility model, the control gear and the transmission gear are sealed in a cover, and the cover is arranged on a fixed bracket.

[0010] As a further improvement of the present invention, a dial is provided at the center of the control gear, the dial and the valve core control rod are respectively located on two sides of the control gear, and the dial is used to display the opening of the valve body.

[0011] As a further improvement of the utility model, an upper limit switch and a lower limit switch are respectively provided at both ends of the dial, and the upper limit switch and the lower limit switch are connected to the control electric box through a tripping circuit to control the limit position of the valve body switch.

[0012] As a further improvement of the utility model, the valve body is a ball valve.

[0013] Compared with the prior art, the advantages of the utility model are:

[0014] The valve device of the remote control switch of the utility model connects the valve core control rod of the valve body to the gear drive assembly, and connects the control electric box to the gear drive assembly and the control button respectively, and the control button can be set in the remote control room, that is, the valve body is arranged outside the incinerator, and the control component is arranged remotely, which does not occupy too much installation space and achieves the purpose of automatic control of valve opening and closing; during the garbage incineration process, the control button sends a control instruction to the control electric box, and the control electric box controls the gear drive assembly to rotate forward or reverse according to the received instruction, so as to drive the valve core control rod to rotate forward or reverse, and finally realizes the opening adjustment of the valve body. Through the valve device of the utility model, the operator can make a low-precision and automatic and repeated adjustment of the mud intake of each boiler in a remote control room according to the changes in the combustion conditions of different boilers, so as to make the combustion conditions of the boiler more stable and controllable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure principle of the valve device for remotely controlling the switch in a specific embodiment of the utility model;

[0016] Legend: 1. Valve body; 2. Valve core control lever; 3. Control gear; 4. Transmission gear; 5. Transmission shaft; 6. Drive motor; 7. Control electrical box; 8. Control button; 9. Overcurrent protector; 10. Fixed bracket; 11. Cover; 12. Cable; 13. Dial; 14. Upper limit switch; 15. Lower limit switch; 16. Tripping circuit; 17. Sludge conveying pipe. DETAILED DESCRIPTION

[0017] The present invention is further described below in conjunction with the accompanying drawings and specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0018] In the description of the present invention, it should be understood that the terms "side", "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0019] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0020] Example

[0021] like Figure 1As shown, the valve device of the remote control switch of the utility model includes: a valve body 1, a gear drive assembly, a control electric box 7 and a control button 8. The input port and the output port of the valve body 1 are respectively connected to the sludge conveying pipe 17 to realize sludge conveying. The valve core control rod 2 of the valve body 1 is connected to the gear drive assembly, and the control electric box 7 is respectively connected to the gear drive assembly and the control button 8. The control button 8 is arranged in the remote control room. The control button 8 includes a forward button and a reverse button. The control button 8 is used to send a control instruction to the control electric box 7. The control electric box 7 is used to control the gear drive assembly to rotate forward or reversely, so as to drive the valve core control rod 2 to rotate forward or reversely, thereby realizing the opening adjustment of the valve body 1. In this embodiment, the valve body 1 is a ball valve. In other embodiments, the valve body 1 can also be other types of low-precision control valves.

[0022] In this embodiment, by connecting the valve core control rod 2 of the valve body 1 to the gear drive assembly, the control electric box 7 is connected to the gear drive assembly and the control button 8 respectively, and the control button 8 can be set in the remote control room, that is, the valve body 1 is arranged outside the incinerator, and the control component is arranged remotely, which does not occupy too much installation space and achieves the purpose of automatic control of valve opening and closing. During the garbage incineration process, the control button 8 sends a control instruction to the control electric box 7, and the control electric box 7 controls the gear drive assembly to rotate forward or reverse according to the received instruction, so as to drive the valve core control rod 2 to rotate forward or reverse, and then drive the valve core to rotate forward or reverse, and finally realize the opening adjustment of the valve body 1. Through the valve device of the embodiment, the operator can timely adjust the mud intake of each boiler in a low-precision and automatic and repeated manner in the remote control room according to the changes in the combustion conditions of different boilers, so as to make the combustion conditions of the boiler more stable and controllable.

[0023] like Figure 1 As shown, in this embodiment, the gear drive assembly includes a control gear 3, a transmission gear 4, a transmission shaft 5 and a drive motor 6. The center of the control gear 3 is connected and fixed to the valve core control rod 2, the control gear 3 is meshed with the transmission gear 4, and the transmission gear 4 is connected to the output end of the drive motor 6 through the transmission shaft 5, and the drive motor 6 is connected to the control electric box 7 through the cable 12. The drive motor 6 is controlled by the control electric box 7 to rotate forward or reverse, thereby driving the control gear 3 and the transmission gear 4 to rotate forward or reverse, so that the valve core control rod 2 drives the valve core to rotate, and the valve opening is automatically adjusted. The drive motor 6 can specifically adopt a servo motor, which can more accurately control the opening of the valve body through the form of gear transmission and motor matching, and has a simple structure and convenient parts processing and installation.

[0024] like Figure 1As shown, in this embodiment, an overcurrent protector 9 is provided on the cable 12, and the overcurrent protector 9 is electrically connected to the control electric box 7. The overcurrent protector 9 is used to ensure the safe operation of the drive motor 6, thereby ensuring the reliability of the sludge delivery amount.

[0025] like Figure 1 As shown, the gear drive assembly is arranged on the fixed bracket 10. Further, the control gear 3 and the transmission gear 4 are sealed in the cover 11, and the cover 11 is arranged on the fixed bracket 10. By adding the cover 11, foreign matter is prevented from entering, and the reliability of the gear transmission is ensured.

[0026] like Figure 1 As shown, a dial 13 is provided at the center of the control gear 3. The dial 13 and the valve core control rod 2 are respectively located on two sides of the control gear 3. The dial 13 is used to display the opening of the valve body 1 so as to understand the operation status of the valve in real time.

[0027] Furthermore, an upper limit switch 14 and a lower limit switch 15 are respectively provided at both ends of the scale plate 13, and the upper limit switch 14 and the lower limit switch 15 are connected to the control electric box 7 through a trip circuit 16 to control the limit position of the valve body 1. The addition of the limit switch can prevent the driving motor 6 from causing damage to the valve body 1 due to excessive torque.

[0028] The valve device of this embodiment can eliminate the need for manual labor through remote control, which not only ensures the safety of personnel but also increases the timeliness and flexibility of sludge adjustment, which is conducive to ensuring that the incineration boiler is in a high-quality incineration state.

[0029] Although the utility model is disclosed as above with preferred embodiments, it is not intended to limit the utility model. Any technician familiar with the art can use the above disclosed methods and technical contents to make many possible changes and modifications to the technical solution of the utility model without departing from the spirit and technical solution of the utility model, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments according to the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of protection of the technical solution of the utility model.

Claims

1. A valve device for remotely controlling a switch, characterized in that: include: A valve body (1), a gear drive assembly, a control box (7) and a control button (8); the input port and the output port of the valve body (1) are respectively connected to a sludge conveying pipe (17) to realize sludge conveying; the valve core control rod (2) of the valve body (1) is connected to the gear drive assembly, the control box (7) is respectively connected to the gear drive assembly and the control button (8), the control button (8) is arranged in a remote control room, the control button (8) is used to send a control instruction to the control box (7), the control box (7) is used to control the gear drive assembly to rotate forward or reverse, so as to drive the valve core control rod (2) to rotate forward or reverse, thereby realizing the opening adjustment of the valve body (1).

2. The valve device for remotely controlling a switch according to claim 1, characterized in that: The gear drive assembly comprises a control gear (3), a transmission gear (4), a transmission shaft (5) and a drive motor (6); the center of the control gear (3) is connected and fixed to the valve core control rod (2), the control gear (3) is meshed with the transmission gear (4), the transmission gear (4) is connected to the output end of the drive motor (6) through the transmission shaft (5), and the drive motor (6) is connected to the control electric box (7) through a cable (12).

3. The valve device for remotely controlling a switch according to claim 2, characterized in that: An overcurrent protector (9) is provided on the cable (12), and the overcurrent protector (9) is electrically connected to the control electrical box (7).

4. The valve device for remotely controlling a switch according to claim 2, characterized in that: The gear drive assembly is arranged on a fixed bracket (10).

5. The valve device for remotely controlling a switch according to claim 4, characterized in that: The control gear (3) and the transmission gear (4) are sealed in a cover (11), and the cover (11) is arranged on a fixed bracket (10).

6. The valve device for remotely controlling a switch according to any one of claims 2 to 5, characterized in that: A scale plate (13) is provided at the center of the control gear (3); the scale plate (13) and the valve core control rod (2) are respectively located on two side surfaces of the control gear (3); and the scale plate (13) is used to display the opening of the valve body (1).

7. The valve device for remotely controlling a switch according to claim 6, characterized in that: An upper limit switch (14) and a lower limit switch (15) are respectively provided at both ends of the scale plate (13); the upper limit switch (14) and the lower limit switch (15) are connected to a control electric box (7) via a trip circuit (16) to control the limit position of the valve body (1) switch.

8. The valve device for remotely controlling a switch according to any one of claims 1 to 5, characterized in that: The valve body (1) is a ball valve.

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