Negative pressure stone coal discharging fluid intelligent sensing device

Abstract

The utility model discloses a kind of negative pressure stone coal discharging fluid intelligent sensing devices, it is related to power plant equipment technical field, it is applied to stone coal negative pressure conveying system, the stone coal negative pressure conveying system includes main pipeline, fluid branch pipeline and blow-off branch pipe connected with main pipeline, the corner of the fluid branch pipeline is provided with vibrator, and the one end of the fluid branch pipeline is also connected with sensing mechanism, the sensing mechanism includes the pipe body connected with fluid branch pipeline, one side of the pipe body is fixedly connected with fixed sleeve, the inside hinged connection of the fixed sleeve has leaf door, one side hinged connection of the leaf door has counterweight pull rod. The utility model when stone coal negative pressure conveying system generates negative pressure work, the size of negative pressure is shown by the rotation angle of leaf door, when negative pressure is too small, indicate that pipeline appears blockage phenomenon, controller controls vibrator to beat vibration at this time to the part of pipeline prone to blockage, to exclude blockage phenomenon.

Description

Technical Field

[0001] This utility model relates to the field of power plant equipment technology, specifically to a negative pressure stone and coal discharge fluid intelligent sensing device. Background Technology

[0002] In the operation of modern power plants, coke, as a byproduct discharged from coal mills, requires effective collection and treatment to ensure normal equipment operation. Traditionally, coke is transported from the coal mill to storage or processing sites via a negative pressure conveying system. However, in practice, due to factors such as the varying size and shape of coke particles and the design of the conveying pipelines, these systems are prone to blockages, leading to inefficiency and even equipment failure.

[0003] Currently, the industry primarily uses regular manual inspections and cleaning to prevent and resolve pipe blockages. This method is not only labor-intensive but also inefficient, often failing to detect and address blockages promptly, thus affecting the stability and reliability of the entire system. Furthermore, manual intervention poses certain safety risks and increases operating costs.

[0004] In view of the above background, this utility model proposes an intelligent sensing device for negative pressure stone and coal discharge fluid. Utility Model Content

[0005] Technical problems to be solved

[0006] The purpose of this invention is to overcome the shortcomings of existing technologies by providing an intelligent sensing device for negative pressure coal and stone discharge fluid. This device, through the installation of sensing mechanisms at key locations in the fluid branch pipes, uses the rotation angle of the valves to reflect the magnitude of negative pressure in real time. Combined with the linkage between the controller and the vibrator, it achieves immediate detection and effective removal of blockages. This design not only improves the response speed and processing efficiency to blockage problems and reduces the need for manual intervention, but also enhances the reliability and economy of the system. Therefore, this invention has significant technological advancements and can provide strong support for the optimization of negative pressure coal and stone conveying systems in power plants.

[0007] Technical solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a negative pressure stone and coal discharge fluid intelligent sensing device, applied to a stone and coal negative pressure conveying system. The stone and coal negative pressure conveying system includes a main pipeline, a fluid branch pipeline connected to the main pipeline, and a blow-blocking branch pipeline. A vibrator is installed at the corner of the fluid branch pipeline, and a sensing mechanism is also connected to one end of the fluid branch pipeline. The sensing mechanism includes a pipe body connected to the fluid branch pipeline. A fixing sleeve is fixedly connected to one side of the pipe body. A leaf gate is hinged inside the fixing sleeve. A counterweight rod is hinged to one side of the leaf gate. A detachable counterweight block is provided at one end of the counterweight rod. The counterweight block has various specifications.

[0009] The fixed sleeve has a shaft hole for installing the leaf door. A rotating shaft is fixedly connected to the leaf door. The rotating shaft is rotatably installed inside the shaft hole, and a rotary potentiometer is connected to one end of the rotating shaft.

[0010] Preferably, it further includes a controller for receiving signals from a rotary potentiometer, and the controller is connected to the vibrator for controlling the start and stop of the vibrator.

[0011] Preferably, the fluid branch pipeline is further provided with a stone and coal storage tank, which is used to receive the stone and coal discharged from the coal mill.

[0012] Preferably, the stone and coal storage box is equipped with an observation window and a self-balancing quick-opening door.

[0013] Preferably, the fluid branch pipe is also equipped with a two-way gate valve.

[0014] Preferably, a manual ball valve is installed at one end of the blow-blocking branch pipe.

[0015] Beneficial effects:

[0016] Compared with existing technologies, this intelligent sensing device for negative pressure stone and coal discharge fluid has the following advantages:

[0017] This invention features a sensing mechanism installed at one end of a fluid branch pipe. In the absence of negative pressure, the valve is perpendicular to the pipe flow direction under the action of a counterweight. When the stone and coal negative pressure conveying system generates negative pressure, the valve rotates around its axis under this pressure. A rotary potentiometer measures the rotation angle of the axis and transmits a signal to the controller. When the pipe is unblocked, the valve's rotation angle remains within a certain range. However, when the pipe becomes blocked, the negative pressure decreases, and the valve's rotation angle becomes smaller. At this point, the controller activates a vibrator to strike and vibrate the easily blocked areas of the pipe to clear the blockage. This structure improves the efficiency of handling blockages, solves the problems of low efficiency and high labor intensity associated with manual handling, and enhances the practicality of the device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the negative pressure conveying system for stones and coal of this utility model;

[0020] Figure 2 This is a configuration diagram of a single mill unit according to this utility model;

[0021] Figure 3 This is a schematic diagram of the sensing mechanism of this utility model;

[0022] Figure 4 This is a schematic diagram of the disassembled structure of the sensing mechanism of this utility model;

[0023] Figure 5 This is a schematic diagram of the leaf door and counterweight tie rod of this utility model;

[0024] Figure 6 This is a cross-sectional structural diagram of the sensing mechanism of this utility model.

[0025] In the picture:

[0026] 1. Main pipeline; 2. Fluid branch pipeline; 3. Blow-out branch pipe; 4. Vibrator; 5. Sensing mechanism; 6. Rotary potentiometer; 7. Controller; 8. Stone and coal storage box; 9. Observation window; 10. Self-balancing quick-opening door; 11. Two-way slide gate valve; 12. Manual ball valve; 501. Pipe body; 502. Fixing sleeve; 503. Leaf gate; 504. Counterweight rod; 505. Counterweight block; 5021. Shaft hole; 5031. Rotating shaft. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-6As shown, this utility model provides a technical solution: a negative pressure stone and coal discharge fluid intelligent sensing device, applied to a stone and coal negative pressure conveying system. The stone and coal negative pressure conveying system includes a main pipeline 1, a fluid branch pipeline 2 connected to the main pipeline 1, and a blow-blocking branch pipeline 3. A vibrator 4 is installed at the corner of the fluid branch pipeline 2, and a sensing mechanism 5 is also connected to one end of the fluid branch pipeline 2. The sensing mechanism 5 includes a pipe body 501 connected to the fluid branch pipeline 2. A fixing sleeve 502 is fixedly connected to one side of the pipe body 501. A leaf gate 503 is hinged inside the fixing sleeve 502. A counterweight rod 504 is hinged to one side of the leaf gate 503. A detachable counterweight block 505 is provided at one end of the counterweight rod 504. The counterweight block 505 has various specifications, and different specifications of counterweight blocks 505 are used to adapt to different scenarios.

[0029] The fixed sleeve 502 of this utility model has a shaft hole 5021 for installing the leaf gate 503. The leaf gate 503 is fixedly connected to a rotating shaft 5031, which is rotatably installed inside the shaft hole 5021. One end of the rotating shaft 5031 is connected to a rotary potentiometer 6. By installing a sensing mechanism 5 at one end of the fluid branch pipe 2, in the absence of negative pressure, the leaf gate 503 is perpendicular to the flow direction of the pipe under the action of the counterweight 505. When the stone and coal negative pressure conveying system generates negative pressure, the leaf gate 503 rotates around the rotating shaft 5031 under the action of negative pressure. The rotary potentiometer 6 can measure the rotation angle of the rotating shaft 5031.

[0030] Please refer to the following carefully. Figure 2 and Figure 4 It also includes a controller 7 for receiving signals from the rotary potentiometer 6, and the controller 7 is connected to the vibrator 4 to control the start and stop of the vibrator 4. The vibrator 4 can be a vibrating motor, and its output end is connected to the pipeline. When working, it can vibrate the pipeline. The rotary potentiometer 6 transmits signals to the controller 7. When the pipeline is not blocked, the rotation angle of the valve 503 is within a certain range. However, when the pipeline is blocked, the negative pressure decreases, and the rotation angle of the valve 503 will be relatively small. At this time, the controller 7 controls the vibrator 4 to hammer and vibrate the parts of the pipeline that are prone to blockage in order to remove the blockage. The above structure improves the efficiency of handling blockages, solves the problems of low efficiency and high labor intensity of manual handling, and improves the practicality of the device.

[0031] In another embodiment, a Hall effect sensor, an optical sensor, or an ultrasonic sensor can be used instead of the rotary potentiometer 6 to measure the rotation angle of the leaf gate 503. When using a Hall effect sensor, the rotation angle is detected by sensing changes in the magnetic field. It is typically used in conjunction with a magnetic encoder disk; as the leaf gate rotates, different magnetic poles on the encoder disk pass through the Hall sensor, generating different signal outputs. When using an optical sensor, a grating or other optical marker is used to determine the rotation angle by detecting the obstruction or reflection of light. While an ultrasonic sensor does not directly measure the rotation angle, it can indirectly calculate the rotation angle by measuring the change in distance between the leaf gate edge and a fixed point.

[0032] Please refer to the following carefully. Figure 2 The fluid branch pipe 2 is also equipped with a stone and coal storage box 8, which is used to receive the stone and coal discharged from the coal mill. The stone and coal storage box 8 is equipped with an observation window 9 and a self-balancing quick-opening door 10. The fluid branch pipe 2 is also equipped with a two-way slide valve 11, and a manual ball valve 12 is installed at one end of the blow-blocking branch pipe 3.

[0033] Working principle: Under no negative pressure, the valve 503 is perpendicular to the flow direction of the pipeline under the action of the counterweight 505. When the stone and coal negative pressure conveying system generates negative pressure, the valve 503 rotates around the shaft 5031 under the action of negative pressure. The rotary potentiometer 6 can measure the rotation angle of the shaft 5031 and transmit the signal to the controller 7. When the pipeline is not blocked, the rotation angle of the valve 503 is within a certain range. However, when the pipeline is blocked, the negative pressure decreases, and the rotation angle of the valve 503 will be smaller. At this time, the controller 7 controls the vibrator 4 to hammer and vibrate the parts of the pipeline that are prone to blockage in order to remove the blockage.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A negative pressure stone and coal discharge fluid intelligent sensing device, applied to a stone and coal negative pressure conveying system, the stone and coal negative pressure conveying system comprising a main pipeline (1), a fluid branch pipeline (2) connected to the main pipeline (1), and a blow-blocking branch pipe (3), characterized in that: A vibrator (4) is provided at the corner of the fluid branch pipe (2), and a sensing mechanism (5) is also connected to one end of the fluid branch pipe (2). The sensing mechanism (5) includes a pipe body (501) connected to the fluid branch pipe (2). A fixing sleeve (502) is fixedly connected to one side of the pipe body (501). A leaf door (503) is hinged inside the fixing sleeve (502). A counterweight rod (504) is hinged to one side of the leaf door (503). A detachable counterweight block (505) is provided at one end of the counterweight rod (504). The counterweight block (505) has various specifications. The fixed sleeve (502) has a shaft hole (5021) for installing the leaf door (503). The leaf door (503) is fixedly connected to a rotating shaft (5031). The rotating shaft (5031) is rotatably installed inside the shaft hole (5021), and one end of the rotating shaft (5031) is connected to a rotary potentiometer (6).

2. The intelligent sensing device for negative pressure coal and stone discharge fluid according to claim 1, characterized in that: It also includes a controller (7) for receiving signals from a rotary potentiometer (6), and the controller (7) is connected to the vibrator (4) for controlling the start and stop of the vibrator (4).

3. The intelligent sensing device for negative pressure coal and stone discharge fluid according to claim 1, characterized in that: The fluid branch pipe (2) is also equipped with a stone coal storage box (8), which is used to receive the stone coal discharged from the coal mill.

4. The intelligent sensing device for negative pressure stone and coal discharge fluid according to claim 3, characterized in that: The stone and coal storage box (8) is equipped with an observation window (9) and a self-balancing quick-opening door (10).

5. The intelligent sensing device for negative pressure stone and coal discharge fluid according to claim 1, characterized in that: A two-way gate valve (11) is also provided on the fluid branch pipe (2).

6. The intelligent sensing device for negative pressure coal and stone discharge fluid according to claim 1, characterized in that: A manual ball valve (12) is installed at one end of the blow-blocking branch pipe (3).

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