Dust removal filter bag capable of monitoring temperature

Abstract

The utility model discloses a dust removal filter bag capable of monitoring temperature, the dust removal filter bag comprises a filter bag main body and a temperature measuring material, the temperature measuring material is compounded in the filter bag main body, the temperature measuring material comprises a temperature measuring material body and a temperature indicating area located at one side of the temperature measuring material body, the temperature measuring material indicates the temperature by changing color within a certain temperature range. The temperature measuring device is simple in structural design, convenient to manufacture and low in cost, and the over-temperature risk of the filter bag can be visually diagnosed by compositing the temperature measuring material in the dust removal filter bag; irreversible color change can record the highest temperature experienced in the filter bag, data basis is provided for judging burning loss and aging of the filter bag, and the method can be applied to high-temperature industrial dust removal scenes on a large scale.

Description

Technical Field

[0001] This utility model relates to the field of dust collector filter bag technology, and in particular to a dust collector filter bag that can monitor temperature. Background Technology

[0002] In industrial production processes, such as steel smelting, chemical engineering, and thermal power generation, large amounts of dust-laden gases are generated, requiring the use of dust collector filter bags for filtration to meet environmental emission standards. However, these industrial environments are often complex, with significant gas temperature fluctuations, sometimes even exhibiting abnormally high temperatures. Excessively high temperatures can not only degrade the material properties of dust collector filter bags, shortening their service life (e.g., causing filter bag fibers to age and deform, reducing filtration efficiency), but in extreme cases, they can also trigger filter bag combustion, leading to serious safety accidents.

[0003] Currently, most dust collector filter bags lack built-in temperature monitoring capabilities, making it difficult for operators to know the real-time temperature inside the filter bags. They can only rely on external temperature detection devices for rough estimations. This is particularly problematic when on-site anomalies occur, such as filter bag damage or failure. If the automatic temperature monitoring device malfunctions or is not repaired promptly, it's impossible to verify whether overheating has occurred, causing difficulties for both filter bag manufacturers and end-users. Therefore, developing a dust collector filter bag capable of monitoring its own temperature is of significant practical importance.

[0004] Chinese patent CN114159887A discloses a method for manufacturing an intelligent filter bag and the intelligent temperature filter bag prepared therefrom. The method for manufacturing the intelligent filter bag involves applying a lead-wire thermal resistor to a traditional filter bag, enabling the filter bag to sense temperature changes during operation. However, this method is complex in structure, cumbersome in manufacturing, and costly. Summary of the Invention

[0005] The purpose of this invention is to solve the above-mentioned technical problems and provide a dust collector filter bag that can monitor temperature. By compositing a temperature-sensing material inside the filter bag, the internal temperature of the filter bag can be monitored and recorded.

[0006] To achieve the above technical objectives and meet the above technical requirements, the technical solution adopted by this utility model is: a dust collector filter bag capable of monitoring temperature, wherein the filter felt constituting the dust collector filter bag includes a filter layer, a base fabric, and a support layer; the dust collector filter bag includes a filter bag body and a temperature measuring material, wherein the temperature measuring material is composited inside the filter bag body; the filter bag body includes a bag head, a bag body, and a bag bottom; the temperature measuring material includes a temperature measuring material body and a temperature indicating area located on one side of the temperature measuring material body; the temperature measuring material indicates temperature by changing color within a certain temperature range.

[0007] Preferably, the material of the dust collector filter bag is not limited and it is suitable for most dust collection conditions.

[0008] Preferably, the temperature indicator area of ​​the temperature measuring material can undergo an irreversible color change within a temperature range of 0℃ to 290℃, and the color of the temperature measuring material changing from light to dark represents the temperature reached.

[0009] Preferably, the temperature measuring material is provided with a PTFE polytetrafluoroethylene film protective layer on its outer side.

[0010] Preferably, the temperature measuring material is laminated to the inner side of the filter bag body by ultrasonic waves, stitching, or bonding.

[0011] Preferably, the temperature measuring material is composited on the inner side of the filter bag body at the bag head position, or at the connection between the bag head and the bag body, or at the connection between the bag bottom and the bag body, or at the middle seam of the bag body, or embedded inside the seam of the bag head, bag bottom, or bag body, or at the trademark of the dust collector filter bag.

[0012] Preferably, the temperature measuring material is present individually at any location on the filter bag body, or in combination at any multiple locations on the filter bag body.

[0013] The dust collector filter bags mentioned above can be round, flat, or irregularly shaped, and can be either normal temperature or high temperature filter bags.

[0014] The aforementioned temperature measuring materials can be organic polymer temperature measuring materials, metal temperature measuring materials, ceramic and crystal temperature measuring materials, or heat-sensitive temperature measuring materials.

[0015] The dust filter bags made of the above-mentioned composite temperature measuring material can be installed in the air inlet area or air outlet area of ​​the dust collector, or in the central area of ​​each dust collector compartment, or one to ten bags can be installed every one to ten rows.

[0016] Compared with traditional structures, the advantages of this utility model are as follows: the structural design is simple, and by composite temperature measuring material inside the dust collector filter bag, the actual heating condition of the filter bag can be accurately reflected. The highest temperature that the filter bag can withstand can be directly monitored, the risk of filter bag overheating can be diagnosed, and external monitoring errors can be avoided. The irreversible color change of the temperature measuring material can record the highest temperature experienced inside the filter bag, providing data basis for judging the burning and aging of the filter bag. It is easy to manufacture, requires no electronic components or wiring, and the temperature measuring material is inexpensive, so it can be applied on a large scale in high-temperature industrial dust removal scenarios. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the main structure of the filter bag of this utility model;

[0019] Figure 3 This is a schematic diagram of the temperature measuring material structure of this utility model;

[0020] In the diagram: 1. Filter bag body, 1-1. Bag head, 1-2. Bag body, 1-3. Bag bottom, 2. Temperature measuring material, 2-1. Temperature measuring material body, 2-2. Temperature indication area. Detailed Implementation

[0021] The present invention will be further described below.

[0022] Example 1: A temperature-monitoring dust collector filter bag, comprising a filter bag body 1 and a temperature-sensing material 2. The filter bag is a normal-temperature round bag. The temperature-sensing material 2 is ultrasonically bonded to the bag head 1-1 of the filter bag body 1. The filter bag is installed in the air inlet area of ​​the dust collector. When the internal temperature of the filter bag changes from 0℃ to 150℃, the temperature indicator area 2-2 of the temperature-sensing material 2 begins to change color, and the color change is irreversible. By observing the color position of the temperature indicator area 2-2 of the temperature-sensing material 2, the highest temperature reached inside the filter bag can be determined.

[0023] Example 2: A temperature-monitoring dust collector filter bag, comprising a filter bag body 1 and a temperature-sensing material 2. The filter bag is a normal-temperature round bag. The temperature-sensing material 2 is sewn onto the bag body 1-2 of the filter bag body 1. The filter bag is installed in the air inlet area of ​​the dust collector. When the internal temperature of the filter bag changes from 0℃ to 150℃, the temperature indicator area 2-2 of the temperature-sensing material 2 begins to change color, and the color change is irreversible. By observing the color position of the temperature indicator area 2-2 of the temperature-sensing material 2, the highest temperature reached inside the filter bag can be determined.

[0024] Example 3: A temperature-monitoring dust collector filter bag, comprising a filter bag body 1 and a temperature-sensing material 2. The filter bag is a high-temperature flat bag. The temperature-sensing material 2 is sewn onto the filter bag body 1 at the seam between the bag head 1-1 and the bag body 1-2. The filter bag is installed in the central area of ​​the dust collector. When the internal temperature of the filter bag changes from 150℃ to 250℃, the temperature indicator area 2-2 of the temperature-sensing material 2 begins to change color, and the color change is irreversible. By observing the color position of the temperature indicator area 2-2 of the temperature-sensing material 2, the highest temperature reached inside the filter bag can be determined.

[0025] Example 4: A temperature-monitoring dust collector filter bag, comprising a filter bag body 1 and a temperature-sensing material 2. The filter bag is a high-temperature shaped bag. The temperature-sensing material 2 is heat-fused to the seam between the bag head 1-1 and the bag body 1-2 of the filter bag body 1. The filter bag is installed in the central area of ​​the dust collector. When the internal temperature of the filter bag changes from 150℃ to 250℃, the temperature indicator area 2-2 of the temperature-sensing material 2 begins to change color, and the color change is irreversible. By observing the color position of the temperature indicator area 2-2 of the temperature-sensing material 2, the highest temperature reached inside the filter bag can be determined.

[0026] Example 5: A temperature-monitoring dust collector filter bag, comprising a filter bag body 1 and a temperature-sensing material 2. The filter bag is a high-temperature shaped bag. The temperature-sensing material 2 is heat-fused to the filter bag body 1 at the connection between the bag head 1-1 and the bag body 1-2, and at the connection between the bag bottom and the bag body. The filter bag is installed in the central area of ​​the dust collector. When the internal temperature of the filter bag changes by 100℃ to 200℃, the temperature indicator area 2-2 of the temperature-sensing material 2 begins to change color, and the color change is irreversible. By observing the color position of the temperature indicator area 2-2 of the temperature-sensing material 2, the highest temperature reached inside the filter bag can be determined.

[0027] The above embodiments of this utility model are merely examples to clearly illustrate this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent technical solutions also fall within the scope of this utility model, and the patent protection scope of this utility model should be defined by each claim.

Claims

1. A dust collector filter bag capable of monitoring temperature, characterized in that: The filter felt that makes up the dust collector filter bag includes a filter layer, a base fabric and a support layer. The dust collector filter bag includes a filter bag body (1) and a temperature measuring material (2). The temperature measuring material (2) is composited inside the filter bag body (1). The filter bag body (1) includes a bag head (1-1), a bag body (1-2) and a bag bottom (1-3). The temperature measuring material (2) includes a temperature measuring material body (2-1) and a temperature indicating area (2-2) located on one side of the temperature measuring material body (2-1). The temperature measuring material (2) indicates the temperature by changing color within a certain temperature range.

2. The temperature-monitoring dust filter bag according to claim 1, characterized in that: The material of the dust collector filter bag is not limited.

3. The temperature-monitoring dust filter bag according to claim 1, characterized in that: The temperature indicator area (2-2) of the temperature measuring material (2) can undergo an irreversible color change within a temperature range of 0℃ to 290℃. The color of the temperature measuring material (2) changes from light to dark to represent the temperature reached.

4. The temperature-monitoring dust filter bag according to claim 1, characterized in that: The temperature measuring material (2) has a PTFE film protective layer on its outer side.

5. The temperature-monitoring dust filter bag according to claim 1, characterized in that: The temperature measuring material (2) is bonded to the inside of the filter bag body (1) by ultrasonic waves, stitching, or bonding.

6. The dust collector filter bag capable of monitoring temperature according to claim 1, characterized in that: The temperature measuring material (2) is composited on the inner side of the filter bag body (1) at the bag head (1-1) or at the connection between the bag head (1-1) and the bag body (1-2) or at the connection between the bag bottom (1-3) and the bag body (1-2) or at the seam of the bag body (1-2) or embedded inside the seam of the bag head (1-1), bag bottom (1-3), and bag body (1-2) or at the trademark of the dust removal filter bag.

7. The temperature-monitoring dust filter bag according to claim 6, characterized in that: The temperature measuring material (2) may be present individually at any location of the filter bag body (1), or in combination at any multiple locations of the filter bag body (1).

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