System for judging faults of electromagnetic valve of bag collector

Abstract

The utility model discloses a system for judging faults of an electromagnetic valve of a bag collector, which relates to the technical field of equipment detection and comprises a differential pressure transmitter, an electromagnetic valve body, a bag body, an electrical control cabinet, a computer and a transmission line. Signals of the electromagnetic valve are transmitted to the electrical control cabinet and the computer through the transmission line, the electromagnetic valve body is installed on a pipeline leading to the cloth bag body and receives control signals from the electrical control cabinet, the electrical control cabinet sends out the control signals and transmits the control signals to the electromagnetic valve body through the transmission line, and the electromagnetic valve body is opened. Compressed air in the air storage tank is injected into the cloth bag body through the injection pipe, so that the cloth bag expands and jitters instantly, dust attached to the outer side of the cloth bag is shaken off, and whether the electromagnetic valve body breaks down or not can be accurately judged according to the pressure value of the differential pressure transmitter and the action signal of the electromagnetic valve body.

Description

TECHNICAL FIELD

[0001] The utility model relates to the equipment detection technical field, especially a system of judging cloth bag dust collector solenoid valve failure. BACKGROUND

[0002] In the industrial production activities of metallurgy, cement and other industries, cloth bag dust collector is often used for dust collection. The cloth bag dust collector generally uses a solenoid valve to control the back blowing, blows off the accumulated dust on the cloth bag, and in practical application, the equipment usually needs the following technologies:

[0003] The box structure component collects clean gas filtered by the filter bag;

[0004] The filter system component filters the dust-containing gas by using the filtering effect of the fiber fabric;

[0005] The ash removal system component realizes the periodic ash removal of the cloth bag;

[0006] In the actual production process, the number of solenoid valves of the cloth bag dust collector is large, and the process personnel can only determine the running condition of the solenoid valve when the solenoid valve blows back during the inspection, which will consume a lot of time and energy.

[0007] When the solenoid valve does not blow back and leaks, but the solenoid valve is installed inside the equipment, the fault cannot be handled in time, which will cause the accumulated dust on the cloth bag to be removed, and further reduce the cloth bag air permeability, increase the pressure difference, affect the dust collection efficiency and energy consumption, and there is a risk of cloth bag burning, and serious dust-containing gas emission into the atmosphere will cause environmental pollution. UTILITY MODEL CONTENTS

[0008] In view of the deficiencies of the prior art, the utility model provides a system for judging the failure of the solenoid valve of the cloth bag dust collector, which solves the technical problems that when the solenoid valve does not blow back and leaks, but the solenoid valve is installed inside the equipment, the fault cannot be handled in time, which will cause the accumulated dust on the cloth bag to be removed, and further reduce the cloth bag air permeability, increase the pressure difference, affect the dust collection efficiency and energy consumption.

[0009] To achieve the above purpose, the utility model is realized by the following technical scheme:

[0010] A system for judging the failure of the solenoid valve of the cloth bag dust collector, comprising a differential pressure transmitter, a solenoid valve body, a cloth bag body, an electrical control cabinet, a computer and a transmission line, the differential pressure transmitter is connected to the conveying pipeline of the cloth bag dust collector through a pipeline, the signal is transmitted to the electrical control cabinet and the computer through the transmission line, the solenoid valve body is installed on the pipeline leading to the cloth bag body, and the solenoid valve body receives the control signal from the electrical control cabinet.

[0011] Preferably, the cloth bag body is installed in parallel in a dust collector, and the upper part is connected with the electromagnetic valve body through a pipeline.

[0012] The differential pressure transmitter is installed in front of the electromagnetic valve body or in front of a valve group.

[0013] Preferably, the electrical control cabinet is connected with the differential pressure transmitter and the computer through a transmission line.

[0014] The side end of the cloth bag body is provided with a gas storage tank which is connected with the electromagnetic valve body through a pipeline.

[0015] The top end of the cloth bag body is provided with a blowing pipe which is connected with the electromagnetic valve body.

[0016] Compared with the prior art, the utility model has the advantages of the following beneficial effects.

[0017] In the utility model, the differential pressure transmitter is installed in front of the electromagnetic valve body or in front of a valve group, the differential pressure transmitter transmits the measured pressure and the reverse blowing interval and reverse blowing cycle interval signal of the electromagnetic valve body to the computer in real time and displays a picture, and the pressure data and the action signal of the electromagnetic valve body are analyzed and processed by means of the computer; when the electromagnetic valve body has abnormal conditions such as air leakage and no reverse blowing, fast response processing is carried out.

[0018] In the utility model, the electrical control cabinet sends a control signal which is transmitted to the electromagnetic valve body through a transmission line, the electromagnetic valve body is opened, compressed air in the gas storage tank is sprayed into the cloth bag body through the blowing pipe, the cloth bag is instantaneously expanded and shaken, dust adhered to the outside of the cloth bag is shaken off, and whether the electromagnetic valve body has a fault can be accurately judged according to the pressure value of the differential pressure transmitter and the action signal of the electromagnetic valve body. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and the content of the specification can be implemented, the following preferred embodiments of the utility model are described in detail in cooperation with the drawings.

[0020] Figure 1 It is an installation schematic view of the electromagnetic valve of the utility model.

[0021] Figure 2 It is a signal transmission and control flow chart of the utility model.

[0022] In the drawing: 1, differential pressure transmitter; 2, electromagnetic valve body; 3, cloth bag body; 4, electrical control cabinet; 5, computer; 6, transmission line. DETAILED DESCRIPTION

[0023] This application provides a system for determining the malfunction of a solenoid valve in a baghouse dust collector. This system effectively solves the problem of solenoid valves failing to backflush or leaking air. However, since the solenoid valve is installed inside the equipment, malfunctions cannot be addressed promptly, leading to dust accumulation on the filter bags, reduced air permeability, increased pressure differential, and impacted dust collection efficiency and energy consumption. A differential pressure transmitter is installed before the solenoid valve body or valve group. The transmitter transmits the measured pressure and the solenoid valve body's backflushing interval and backflushing cycle interval signals to a computer in real time and displays the data. The computer analyzes and processes the pressure data and the solenoid valve body's action signals, enabling rapid response and handling when abnormalities such as air leakage or failure to backflush occur in the solenoid valve body. Example

[0024] like Figure 1 , Figure 2 As shown, the technical solution in this application embodiment effectively solves the problem of solenoid valves failing to backflush and leaking air. However, since the solenoid valves are installed inside the equipment, malfunctions cannot be dealt with in a timely manner, leading to dust accumulation on the filter bags that cannot be removed. This, in turn, reduces the filter bag's air permeability, increases the pressure difference, and affects dust collection efficiency and energy consumption. The overall approach is as follows:

[0025] To address the problems existing in the prior art, this utility model provides a system for judging the fault of the solenoid valve of a bag dust collector, including a differential pressure transmitter 1, a solenoid valve body 2, a bag body 3, an electrical control cabinet 4, a computer 5, and a transmission line 6. The differential pressure transmitter 1 is connected to the conveying pipeline of the bag dust collector through a pipeline, and its signal is transmitted to the electrical control cabinet 4 and the computer 5 through the transmission line 6. The solenoid valve body 2 is installed on the pipeline leading to the bag body 3, and the solenoid valve body 2 receives the control signal from the electrical control cabinet 4.

[0026] Differential pressure transmitter 1 is installed in front of solenoid valve body 2 or valve group. Differential pressure transmitter 1 transmits the measured pressure and the backflush interval and backflush cycle interval of solenoid valve body 2 to computer 5 in real time and displays the screen to remind the operator whether the solenoid valve is abnormal.

[0027] The electrical control cabinet 4 transmits the backflush interval and backflush cycle interval control signals to the solenoid valve body 2 and transmits its action signal to the computer 5. The pressure value detected by the differential pressure transmitter 1 is transmitted to the computer 5 in real time. At this time, the computer 5 can make a logical judgment on whether the solenoid valve body 2 is leaking air or whether it is not backflushing.

[0028] The filter bag body 3 is installed in parallel in the dust collector, and is connected to the solenoid valve body 2 above through a pipe. Dust-laden gas enters the filter bag body 3 from below, and the dust is intercepted on the outside of the filter bag body 3. Clean gas is discharged from the top of the filter bag body 3.

[0029] Electrical control cabinet 4 is connected to differential pressure transmitter 1 and computer 5 via transmission line 6. It receives signals from differential pressure transmitter 1 and sends control signals to solenoid valve body 2 according to set parameters (such as backflush pulse interval, backflush cycle interval, etc.) to coordinate the dust removal process. Computer 5 is connected to differential pressure transmitter 1 and electrical control cabinet 4 via transmission line 6. It is used to display, record and analyze differential pressure data, and can also set and adjust the parameters of electrical control cabinet 4.

[0030] An air tank is provided at the side end of the bag body 3. The air tank is connected to the solenoid valve body 2 through a pipe. A blow pipe connected to the solenoid valve body 2 is provided at the top of the bag body 3.

[0031] Working principle:

[0032] In the first step, dust-laden gas enters the baghouse dust collector. As it passes through the bag body 3, the dust is blocked on the outside of the bag, and the clean gas is discharged through the bag, achieving preliminary gas-dust separation. The differential pressure transmitter 1 monitors the pressure difference between the inlet and outlet of the dust collector in real time and transmits the pressure difference signal to the electrical control cabinet 4 and computer 5 through the transmission line 6. The differential pressure transmitter 1 is installed in front of the solenoid valve body 2 or the valve group. The differential pressure transmitter 1 transmits the measured pressure and the backflush interval and backflush cycle interval of the solenoid valve body 2 to the computer 5 in real time and displays the screen, reminding the operator whether the solenoid valve is abnormal.

[0033] The electrical control cabinet 4 has a preset differential pressure threshold. When the received differential pressure signal exceeds the set threshold, it indicates that there is a lot of dust on the filter bag and it needs to be cleaned. At the same time, the computer 5 can also judge and optimize the timing of cleaning based on historical data and algorithms.

[0034] The electrical control cabinet 4 sends a control signal, which is transmitted to the solenoid valve body 2 via the transmission line 6. The solenoid valve body 2 opens, and compressed air in the air tank is injected into the filter bag body 3 through the blow pipe, causing the filter bag to expand and shake instantly, shaking off the dust adhering to the outside of the filter bag. The dust removal process is carried out according to the set back-blowing pulse interval and back-blowing cycle interval to ensure the dust removal effect and not affect the normal operation of the dust collector. The computer 5 records and stores information such as pressure difference data, dust removal time, and number of dust removals throughout the process, and can perform data analysis to provide a basis for equipment maintenance and optimization.

[0035] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A system for judging the fault of an electromagnetic valve of a bag dust collector, comprising a differential pressure transmitter (1), an electromagnetic valve body (2), a bag body (3), an electrical control cabinet (4), a computer (5), and a transmission line (6), characterized in that, The differential pressure transmitter (1) is connected to the conveying pipeline of the bag filter through a pipeline, and the signal is transmitted to the electrical control cabinet (4) and the computer (5) through a transmission line (6), the electromagnetic valve body (2) is installed on the pipeline leading to the bag body (3), and the electromagnetic valve body (2) receives the control signal from the electrical control cabinet (4).

2. The system for determining the malfunction of the solenoid valve of the cloth bag dust collector according to claim 1, wherein The bag body (3) is installed in parallel in the dust collector and is connected to the electromagnetic valve body (2) through a pipeline at the top.

3. The system for determining the malfunction of the solenoid valve of the cloth bag dust collector according to claim 1, wherein The differential pressure transmitter (1) is installed before the electromagnetic valve body (2) or before the valve group.

4. The system for determining the malfunction of the solenoid valve of the cloth bag dust collector according to claim 1, wherein The electrical control cabinet (4) is connected to the differential pressure transmitter (1) and the computer (5) through a transmission line (6).

5. The system for determining the malfunction of the solenoid valve of the cloth bag dust collector according to claim 1, wherein The side end of the bag body (3) is provided with a gas storage tank, and the gas storage tank is connected to the electromagnetic valve body (2) through a pipeline.

6. The system for determining malfunction of an electromagnetic valve of a cloth bag precipitator according to claim 1, wherein The top end of the bag body (3) is provided with a blowing pipe connected to the electromagnetic valve body (2).

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