A stroke optimization device for a desulfurization lock gate

Abstract

The utility model discloses a kind of travel optimization devices of desulfurization gate, including desulfurization gate and the travel optimization device being set on desulfurization gate, the desulfurization gate is composed of square frame and baffle door, vertical slide rail is provided in square frame opposite two inner sides, for movable installation with baffle door, baffle door moves up and down in square frame along the vertical slide rail of two sides, there is the driving mechanism being connected with baffle door in the top middle position of the baffle door, and still be provided with limit mechanism on the baffle door, drive by driving mechanism, drive baffle door to open or close, after baffle door opens or closes and reaches predetermined position, limit by limit mechanism, guarantee the overall airtightness of baffle door after closing. The utility model whole structure is simple and reasonable, practical safe, stable in operation, and good airtightness.

Description

Technical Field

[0001] This utility model belongs to the technical field of desulfurization gate valves and relates to a travel optimization device for desulfurization gate valves. Background Technology

[0002] The plant's desulfurization system is a device for treating flue gas. The main equipment within the system includes desulfurization gate valves. Existing desulfurization gate valves are generally pneumatically or hydraulically driven. After prolonged use, gaps may appear between the gate valve and the frame, resulting in insufficient overall sealing. Furthermore, flue gas may backflow into the boiler, causing numerous problems related to boiler lifespan, maintenance, and other aspects. Therefore, a stroke optimization device for the desulfurization gate valve is designed. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a desulfurization gate stroke optimization device that is simple and reasonable in structure, practical and safe, stable in operation and has good sealing performance.

[0004] This utility model is achieved through the following technical solution: a desulfurization gate travel optimization device, comprising a desulfurization gate and a travel optimization device disposed on the desulfurization gate. The desulfurization gate consists of a square frame and a baffle door. Vertical slide rails are provided on the two inner sides of the square frame for movably mounting the baffle door. The baffle door moves up and down within the square frame along the vertical slide rails on both sides. A drive mechanism connected to the baffle door is provided at the top center of the baffle door, and a limit mechanism is also provided on the baffle door. The drive mechanism drives the baffle door to open or close. When the baffle door reaches a predetermined position after opening or closing, it is limited by the limit mechanism to ensure the overall airtightness of the baffle door after it is closed.

[0005] Preferably, the driving mechanism comprises a hydraulic cylinder, a first hydraulic pipeline, a second hydraulic pipeline, a hydraulic controller, and a local control box. The hydraulic cylinder has an internal cavity containing a piston rod with a clearance fit. The first and second hydraulic pipelines are respectively located on the side of the hydraulic cylinder near the upper and lower ends. One end of each pipeline is connected to the cavity, and the other end is connected to the local control box. A connecting pipe connects one end of the first and second hydraulic pipelines to the hydraulic controller, and the other end of the controller is connected to the local control box. A control valve is installed on the connecting pipe. The local control box and the hydraulic controller work together to control the hydraulic pressure of the first and second hydraulic pipelines. The first and second hydraulic pipelines act as closing and opening hydraulic pressures, respectively, controlling the piston rod in the hydraulic cylinder to move the baffle door up and down.

[0006] Preferably, the limiting mechanism consists of a first limit switch and a second limit switch arranged vertically on the same side of the square frame. The first limit switch and the second limit switch are respectively connected to the hydraulic controller, the local control box, and the power supply line. The first limit switch is set at the highest point when the baffle door is fully open, and the second limit switch is set at the lowest point when the baffle door is fully closed. When the baffle door is fully open or fully closed, it will touch the push rod of the first limit switch or the second limit switch, pushing the push rod to trigger the contact system inside the first limit switch or the second limit switch, realizing the circuit conversion, thereby ensuring the accurate position when the baffle door is open or closed.

[0007] Preferably, the baffle door is provided with a handle for easy manual opening or closing in the event of a power outage.

[0008] Preferably, a sealing ring is provided between the baffle door and the square frame to ensure the overall airtightness when the baffle door is completely closed.

[0009] Preferably, the control valve is a needle valve.

[0010] Preferably, pressure monitors are installed on the first and second hydraulic lines.

[0011] The beneficial effects of this utility model are as follows: The desulfurization gate travel optimization device designed in this utility model, through the cooperation of a designed hydraulic cylinder, a first hydraulic pipeline, a second hydraulic pipeline, a hydraulic controller and a local control box, a limit switch, and a sealing ring designed between the gate and the square frame, greatly improves the overall airtightness of the gate after it is closed. Pressure monitors are installed on the first and second hydraulic pipelines to monitor the internal pressure in real time, thereby improving the overall safety and practicality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model. Detailed Implementation

[0013] To enable those skilled in the art to more clearly understand the purpose, technical solution and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0014] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "horizontal", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0015] The present invention will now be described in detail with reference to the accompanying drawings: Figure 1 As shown, a desulfurization gate travel optimization device includes a desulfurization gate and a travel optimization device installed on the desulfurization gate. The desulfurization gate consists of a square frame 1 and a baffle 2. Vertical slide rails are provided on the two inner sides of the square frame 1 for movably mounting the baffle 2. The baffle 2 moves up and down within the square frame 1 along the vertical slide rails on both sides. A drive mechanism connected to the baffle 2 is provided at the top center of the baffle 2, and a limit mechanism is also provided on the baffle 2. The drive mechanism drives the baffle 2 to open or close. When the baffle 2 reaches a predetermined position after opening or closing, it is limited by the limit mechanism to ensure the overall airtightness of the baffle 2 after it is closed.

[0016] The drive mechanism consists of a hydraulic cylinder 3, a first hydraulic line 4, a second hydraulic line 5, a hydraulic controller 6, and a local control box 7. The hydraulic cylinder 3 has an internal cavity containing a piston rod with a clearance fit. The first hydraulic line 4 and the second hydraulic line 5 are respectively located on the side of the hydraulic cylinder near its upper and lower ends. One end of each of the first and second hydraulic lines 4 and 5 communicates with the cavity, while the other end connects to the circuitry of the local control box 7. The connection is made so that one end of the first hydraulic pipeline 4 is connected to the hydraulic controller 6 via a connecting pipe 8, and the other end of the hydraulic controller 6 is connected to the local control box 7 via a circuit. A control valve 9 is provided on the connecting pipe 8. The local control box 7 and the hydraulic controller 6 work together to control the hydraulic pressure of the first hydraulic pipeline 4 and the second hydraulic pipeline 5. The first hydraulic pipeline 4 and the second hydraulic pipeline 5 respectively act as the closing hydraulic pressure and the opening hydraulic pressure to control the piston rod (not shown in the figure) in the hydraulic cylinder to drive the baffle door to move up and down.

[0017] The limiting mechanism consists of a first limit switch 10 and a second limit switch 11 arranged vertically on the same side of the square frame 1. The first limit switch 10 and the second limit switch 11 are respectively connected to the hydraulic controller 6, the local control box 7, and the power supply line. The first limit switch 10 is set at the highest point when the baffle door 2 is fully open, and the second limit switch 11 is set at the lowest point when the baffle door 2 is fully closed. When the baffle door 2 is fully open or fully closed, it will touch the push rod of the first limit switch 10 or the second limit switch 11, which will push the push rod to trigger the contact system inside the first limit switch 10 or the second limit switch 11, realize the circuit conversion, and thus ensure that the position of the baffle door is accurate when it is open or closed.

[0018] The baffle door 2 is equipped with a handle 12 for easy manual opening or closing in case of power failure. A sealing ring is provided between the baffle door 2 and the square frame 1 to ensure the overall airtightness when the baffle door is fully closed. The control valve 9 is a needle valve. Pressure monitors 13 are installed on the first hydraulic line 4 and the second hydraulic line 5.

[0019] The desulfurization gate travel optimization device designed in this utility model, through the cooperation of a designed hydraulic cylinder, a first hydraulic pipeline, a second hydraulic pipeline, a hydraulic controller and a local control box, a limit switch, and a sealing ring designed between the gate and the square frame, greatly improves the overall airtightness of the gate after it is closed. Pressure monitors are installed on the first and second hydraulic pipelines to monitor the internal pressure in real time, thereby improving the overall safety and practicality.

[0020] The specific embodiments described herein are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A stroke optimization device for a desulfurization lock hopper door, comprising a desulfurization lock hopper door and a stroke optimization device disposed on the desulfurization lock hopper door, characterized in that: The desulfurization gate is composed of a square frame (1) and a baffle gate (2). Vertical slide rails are provided on the two inner sides of the square frame (1) for the baffle gate (2) to be movably installed. The baffle gate (2) moves up and down in the square frame (1) along the vertical slide rails on both sides. A drive mechanism connected to the baffle gate (2) is provided at the top middle position of the baffle gate (2). A limit mechanism is also provided on the baffle gate (2). The drive mechanism drives the baffle gate (2) to open or close. When the baffle gate (2) reaches the predetermined position after opening or closing, it is limited by the limit mechanism to ensure the overall airtightness of the baffle gate (2) after it is closed.

2. The travel optimization device for a desulfurization gate valve according to claim 1, characterized by: The driving mechanism consists of a hydraulic cylinder (3), a first hydraulic pipeline (4), a second hydraulic pipeline (5), a hydraulic controller (6), and a local control box (7). The hydraulic cylinder (3) has an internal cavity, and a piston rod is installed inside the cavity. The piston rod is in clearance fit with the cavity. The first hydraulic pipeline (4) and the second hydraulic pipeline (5) are respectively installed on the side of the hydraulic cylinder near the upper and lower ends. One end of the first hydraulic pipeline (4) and the second hydraulic pipeline (5) are connected to the cavity, and the other end of the first hydraulic pipeline (4) and the second hydraulic pipeline (5) are connected to the local control box (6). 7) Circuit connection: One end of the oil pressure controller (6) is connected to the side of the first oil pressure pipeline (4) through the connecting pipe (8), and the other end of the oil pressure controller (6) is connected to the local control box (7) in the circuit. A control valve (9) is provided on the connecting pipe (8). The local control box (7) and the oil pressure controller (6) cooperate to control the oil pressure of the first oil pressure pipeline (4) and the second oil pressure pipeline (5). The first oil pressure pipeline (4) and the second oil pressure pipeline (5) respectively act as the closing oil pressure and the opening oil pressure to control the piston rod in the hydraulic cylinder to drive the baffle door to move up and down.

3. The travel optimization device for a desulfurization gate valve according to claim 1, characterized by: The limiting mechanism consists of a first limit switch (10) and a second limit switch (11) arranged vertically on the same side of the square frame (1). The first limit switch (10) and the second limit switch (11) are respectively connected to the hydraulic controller (6), the local control box (7), and the power supply line. The first limit switch (10) is set at the highest point when the baffle door (2) is fully open, and the second limit switch (11) is set at the lowest point when the baffle door (2) is fully closed. When the baffle door (2) is fully open or fully closed, it will touch the push rod of the first limit switch (10) or the second limit switch (11) respectively, and push the push rod to trigger the contact system inside the first limit switch (10) or the second limit switch (11) to realize the circuit conversion, thereby ensuring that the position of the baffle door is accurate when it is open or closed.

4. The travel optimization device for a desulfurization gate according to claim 1 or 2, characterized by: The baffle door (2) is equipped with a handle (12) for easy manual opening or closing when the power is off.

5. The travel optimization device for a desulfurization gate according to claim 4, characterized by: A sealing ring is provided between the baffle door (2) and the square frame (1) to ensure the overall airtightness when the baffle door is completely closed.

6. The travel optimization device for a desulfurization gate valve according to claim 2, characterized by: The control valve (9) is a needle valve.

7. The travel optimization device for a desulfurization gate valve according to claim 2, characterized by: The first oil pressure pipeline (4) and the second oil pressure pipeline (5) are provided with pressure monitors (13).

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