On-line detection device for working state of blowback pulse valve

Abstract

The utility model provides a back flushing pulse valve working state on-line detection device, which is applied to a pulse bag type dust collector and comprises an air bag pressure sensor and a pulse control device, the air bag pressure sensor is connected with an air bag and used for detecting the pressure of the air bag before and after injection, and the pulse control device is connected with the air bag pressure sensor through an industrial bus and used for detecting the pressure of the air bag before and after injection. The fault diagnosis module is used for receiving the detection data of the air bag pressure sensor and carrying out fault diagnosis on the working state of the air bag through the detection data; the human-computer interaction interface is used for displaying the pulse valve state, the air bag pressure detection data and the fault information; and the sound-light alarm device is used for sending out a sound-light alarm signal when the pulse control device sends out the fault signal. The device can detect the pressure of the air bag before blowing, blow after confirming that no fault exists, detect the pressure of the air bag again after blowing, and monitor the working state of the air bag on line.

Description

Technical Field

[0001] This utility model relates to the field of industrial dust removal technology, and in particular to an online detection device for the working status of a backflush pulse valve. Background Technology

[0002] Nowadays, pulse jet bag filters are widely used in various production enterprises. The dust removal of bag filters mainly adopts pulse valve backflushing online or offline cleaning. The specific control method is mainly PLC or DCS point-to-point control of the pulse valve operation and jetting, or a separate field pulse controller to control the operation and jetting of the pulse valve.

[0003] However, none of the above control methods can detect pulse valve malfunctions online, such as coil breakage or pulse valve leakage. Therefore, it is necessary to provide an online detection device for the working status of the backflush pulse valve. Summary of the Invention

[0004] To address the aforementioned technical problems, an online detection device for the working status of a backflush pulse valve is provided. This invention primarily utilizes an air tank pressure sensor, a pulse control device, a human-machine interface, and an audible and visual alarm device. Before backflushing, the air tank pressure is detected; after confirming there are no faults, backflushing is performed; after backflushing, the air tank pressure is detected again, thus monitoring the working status of the air tank online.

[0005] The technical means adopted in this utility model are as follows:

[0006] An online detection device for the working status of a backflush pulse valve, applied to a pulse bag filter, includes an air tank pressure sensor and a pulse control device. The air tank pressure sensor is connected to the air tank and is used to detect the pressure of the air tank before and after the pulse is applied. The pulse control device is connected to the air tank pressure sensor through an industrial bus and is used to receive the detection data from the air tank pressure sensor and to diagnose faults in the working status of the air tank based on the detection data.

[0007] Furthermore, the pulse control device calculates the pressure change based on pressure detection data before and after air bag blowing, and adjusts the blowing parameters of the pulse bag filter accordingly.

[0008] Furthermore, the pulse control device uses an ARM microcontroller, which has anti-interference capabilities and supports communication networking.

[0009] Furthermore, the air bag pressure sensor is a digital pressure sensor.

[0010] Furthermore, the online detection device for the working status of the backflush pulse valve also includes a human-machine interface connected to a pulse control device for displaying the pulse valve status, air tank pressure detection data, and fault information.

[0011] Furthermore, the online detection device for the working status of the backflush pulse valve also includes an audible and visual alarm device connected to the pulse control device, used to issue an audible and visual alarm signal when the pulse control device issues a fault signal.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] The online detection device for the working status of the backflush pulse valve provided by this utility model can directly detect the working status of the pulse valve, saving the workload of inspection personnel to periodically climb to the top of the dust collector box, and can also detect pulse valve faults in a timely manner. This reduces labor intensity, increases work efficiency, and improves the operating effect of the dust collector.

[0014] Based on the above reasons, this utility model can be widely promoted in fields such as industrial dust removal. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the online detection device for the working status of the backflush pulse valve in this utility model.

[0017] In the diagram: 1. Air pressure sensor; 2. Pulse control device; 3. Human-machine interface; 4. Audible and visual alarm device. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0021] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0022] like Figure 1 As shown, this utility model provides an online detection device for the working status of a backflush pulse valve, which is applied to a pulse bag filter. It includes an air tank pressure sensor 1 and a pulse control device 2. The air tank pressure sensor 1 is connected to the air tank and is used to detect the pressure of the air tank before and after the pulse is applied. The pulse control device 2 is connected to the air tank pressure sensor 1 through an industrial bus and is used to receive the detection data of the air tank pressure sensor 1, and to perform fault diagnosis on the working status of the air tank through the detection data, determine whether it is working properly, and realize fault warning and location.

[0023] During implementation, industrial buses can use RS485, CAN, etc., to transmit detection data to a host computer or monitoring system.

[0024] In a specific implementation, as a preferred embodiment, the pulse control device 2 calculates the pressure change based on the pressure detection data before and after the air bag is purged, and adjusts the purging parameters of the pulse bag filter.

[0025] In specific implementation, as a preferred embodiment, the pulse control device 2 adopts a 32-bit ARM microcontroller, which has anti-interference capabilities and supports communication networking.

[0026] In specific implementation, as a preferred embodiment, the air bag pressure sensor 1 is a digital pressure sensor.

[0027] In a specific implementation, as a preferred embodiment, the online detection device for the working status of the backflush pulse valve also includes a human-machine interface 3, which is connected to the pulse control device 2 and is used to display the pulse valve status, air bag pressure detection data, and fault information.

[0028] In a specific implementation, as a preferred embodiment, the online detection device for the working status of the backflush pulse valve also includes an audible and visual alarm device 4, which is connected to the pulse control device 2 and is used to issue an audible and visual alarm signal when the pulse control device 2 issues a fault signal.

[0029] Example

[0030] like Figure 1 As shown, this utility model provides an online detection device for the working status of a backflush pulse valve.

[0031] Hardware design: Design the circuits for the sensor module, control module, and communication module, and select appropriate microcontrollers and sensors.

[0032] Software development: Write algorithms for data acquisition, signal processing, and fault diagnosis; develop human-computer interaction interfaces and remote monitoring platforms.

[0033] System integration: Integrating hardware and software, performing functional testing and performance optimization.

[0034] On-site installation and commissioning: Install control devices on industrial dust removal equipment and conduct on-site commissioning and verification.

[0035] Operation and maintenance: Regularly check the system's operating status and update the fault diagnosis model.

[0036] This utility model device can directly check for faults from the host computer monitoring system, which greatly reduces labor intensity, increases labor efficiency, improves the operating effect of bag dust collectors, and also reduces accidental injuries to personnel.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An online detection device for the working status of a backflush pulse valve, applied in a pulse bag filter, characterized in that, It includes an air bag pressure sensor (1) and a pulse control device (2). The air bag pressure sensor (1) is connected to the air bag and is used to detect the pressure before and after the air bag is purged. The pulse control device (2) is connected to the air bag pressure sensor (1) through an industrial bus and is used to receive the detection data of the air bag pressure sensor (1) and to diagnose the working status of the air bag through the detection data.

2. The online detection device for the working status of the backflush pulse valve according to claim 1, characterized in that, The pulse control device (2) calculates the pressure change based on the pressure detection data before and after the air bag is purged, and adjusts the purging parameters of the pulse bag filter.

3. The online detection device for the working status of the backflush pulse valve according to claim 1, characterized in that, The pulse control device (2) adopts an ARM microcontroller, which has anti-interference capabilities and supports communication networking.

4. The online detection device for the working status of the backflush pulse valve according to claim 1, characterized in that, The air bag pressure sensor (1) is a digital pressure sensor.

5. The online detection device for the working status of the backflush pulse valve according to claim 1, characterized in that, The online detection device for the working status of the backflush pulse valve also includes a human-machine interface (3), which is connected to the pulse control device (2) and is used to display the pulse valve status, air bag pressure detection data and fault information.

6. The online detection device for the working status of the backflush pulse valve according to claim 1, characterized in that, The online detection device for the working status of the backflush pulse valve also includes an audible and visual alarm device (4), which is connected to the pulse control device (2) and is used to issue an audible and visual alarm signal when the pulse control device (2) issues a fault signal.

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