A hot flue gas carbon monoxide treatment device

Abstract

The utility model relates to the field of gas treatment device, concretely relates to a hot flue gas carbon monoxide treatment device. The scheme of the present application is sequentially provided with primary filter unit, dehumidification unit, fine filter unit and condensation unit in gas pretreatment module, carries out multistage purification to the collection gas, effectively removes dust, moisture, impurity and the like interference material. Multistage purification treatment reduces the erosion and blockage of dust, impurity and the like to the internal precision components such as gas chamber, sensor, reduces the equipment failure rate. At the same time, the removal moisture can also avoid the corrosion of equipment components due to the humid environment, thereby prolonging the service life of the whole detection and treatment device, reducing equipment maintenance and replacement cost.

Description

Technical Field

[0001] This utility model relates to the field of gas treatment devices, specifically to a hot flue gas carbon monoxide treatment device. Background Technology

[0002] In numerous fields such as industrial production, chemical storage, and gas transportation, real-time monitoring and effective treatment of hazardous gases are crucial for ensuring production safety, personnel health, and environmental safety. Existing automatic hazardous gas detection and treatment devices typically include a gas chamber, a treatment module, and a control module. A sampling pump introduces the collected gas into the gas chamber, while the exhaust fan and alarm module in the treatment module activate ventilation and sound an alarm when hazardous gases are detected.

[0003] However, existing detection devices have significant shortcomings in the gas collection stage. Since the collected gases typically contain dust, moisture, impurities, etc., these substances can interfere with the detection results, reducing their accuracy and reliability. For example, dust and impurities may clog the detector's sensors, causing them to malfunction or generate erroneous data; moisture can affect the chemical properties of the gas, leading to inaccurate results. While traditional detection devices do perform some processing on the collected gas, the process is simple and cannot achieve efficient gas purification.

[0004] To address the aforementioned issues, there is an urgent need for an automatic detection and treatment device for hazardous gases capable of performing multi-stage purification of collected gases, in order to improve the accuracy and stability of hazardous gas detection and ensure the safe operation of related fields. Utility Model Content

[0005] To address the aforementioned problems, this utility model discloses a hot flue gas carbon monoxide treatment device, comprising a gas chamber, a processing module, and a control module. The gas chamber is connected to a sampling pump, through which collected gas is introduced into the gas chamber. The processing module includes an exhaust fan and an alarm module. The device also includes a gas pretreatment module, which sequentially comprises a primary filtration unit, a dehumidification unit, a fine filtration unit, and a condensation unit, for multi-stage purification of the gas to be collected.

[0006] The inner wall of the gas chamber is provided with a corrosion-resistant coating. The internal cavity of the gas chamber is conical in shape, and a gas acquisition probe is installed in the cavity. The gas acquisition probe is communicatively connected to the control module for transmitting detection data.

[0007] The gas sampling probe has a dustproof and waterproof coating to prevent dust, water vapor or corrosive substances from interfering with the sampling process.

[0008] A quick-connect interface is further provided on one side of the air chamber for expanding the connection of the air chamber.

[0009] The processing module and control module are housed in an explosion-proof control cabinet. The explosion-proof control cabinet also includes a gas leak detection unit and an inert gas injection module. The gas leak detection unit and the inert gas injection module are respectively connected to the control module. When the gas leak detection unit detects that the gas concentration reaches a threshold, inert gas is injected through the inert gas injection module to suppress the risk of combustion.

[0010] The inert gas injection module includes a gas storage container and a controllable valve device, which is communicatively connected to the control module.

[0011] In this application, the gas pretreatment module is sequentially configured with a primary filtration unit, a dehumidification unit, a fine filtration unit, and a condensation unit, performing multi-stage purification on the collected gas to effectively remove interfering substances such as dust, moisture, and impurities. This multi-stage purification process reduces the corrosion and blockage of internal precision components such as the gas chamber and sensors by dust and impurities, lowering the equipment failure rate. Simultaneously, moisture removal prevents corrosion of equipment components caused by humid environments, thereby extending the service life of the entire detection and processing device and reducing equipment maintenance and replacement costs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the system structure of the carbon monoxide treatment device in the embodiments of this application;

[0013] Figure 2 This is a schematic diagram of the air chamber structure in an embodiment of this application;

[0014] Figure 3 This is a schematic diagram of the preprocessing module in an embodiment of this application;

[0015] Figure 4 This is a schematic diagram of the internal structure of the explosion-proof control cabinet in the embodiments of this application. Detailed Implementation

[0016] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0017] Example 1: As Figures 1-3 As shown, a hot flue gas carbon monoxide treatment device includes a gas chamber 1, a processing module 2, and a control module 3. The gas chamber 1 is connected to a sampling pump 4, through which the sampled gas is introduced into the gas chamber 1. The processing module 2 includes an exhaust fan 21 and an alarm module 22. The device is characterized in that it further includes a gas pretreatment module 5, which sequentially includes a primary filtration unit 51, a dehumidification unit 52, a fine filtration unit 53, and a condensation unit 54, for multi-stage purification of the gas to be collected.

[0018] The inner wall of the gas chamber 1 is provided with a corrosion-resistant coating. The internal cavity of the gas chamber 1 is cone-shaped, and a gas collection probe 12 is installed in the cavity. The gas collection probe 12 is communicatively connected to the control module 3 for transmitting detection data.

[0019] The gas sampling probe 12 has a dustproof and waterproof coating on its surface to prevent dust, water vapor or corrosive substances from interfering with the sampling process.

[0020] A quick-connect interface 13 is further provided on one side of the air chamber 1 for expanding the connection of the air chamber 1.

[0021] In this embodiment, the gas chamber 1 is used to contain the collected gas and perform component detection. Its interior is a conical cavity; the conical structure guides the airflow towards the bottom of the chamber, preventing gas stagnation and the formation of "dead spaces," ensuring more uniform contact between the detection probe and the gas, and improving detection accuracy. It is suitable for detecting mixed gases with significant density differences, such as chlorine (Cl2), which is heavier than air and can be accurately captured by the bottom probe after settling.

[0022] The gas sampling probe 12 has a built-in sensor, which can be an electrochemical sensor or an infrared sensor or similar sensor. It is used to detect the gas concentration in real time and transmit the data to the control module 3 through a communication module such as RS485 or WiFi.

[0023] The surface of the gas sampling probe 12 is covered with a dustproof and waterproof coating, such as a paraffin coating, to prevent dust from clogging the sensor pores, water vapor from causing short circuits, or corrosive gases from corroding the probe elements.

[0024] The quick-connect interface 13 is used to support gas chamber expansion, such as connecting multiple gas chambers in parallel to achieve multi-point synchronous detection, or connecting pretreatment modules in series to enhance gas purification effect.

[0025] The processing module 2 is used for the end-of-pipe treatment of carbon monoxide gas. When carbon monoxide gas exceeds the standard, the exhaust duct is activated to discharge the polluted gas to a safe area, such as high-altitude discharge or connection to subsequent treatment equipment.

[0026] In one embodiment, the alarm module 22 may include audible and visual alarms such as a buzzer, LED flashing lights, and remote alarm functions such as SMS and APP push notifications.

[0027] The control module 3 is used to receive data from the gas acquisition probe 12, analyze and process it, and then trigger corresponding commands.

[0028] The pretreatment module eliminates interference factors through a four-stage purification process to ensure that the gas entering the gas chamber meets the detection conditions. The primary filtration unit 51 removes large particulate impurities such as dust, hair, and insects to prevent clogging of subsequent precision components. In specific designs, it can employ a metal mesh screen or coarse filter cotton with a filtration accuracy of 5–50 μm.

[0029] The dehumidification unit 52 is used to reduce gas humidity and prevent water vapor condensation from causing sensor failure, such as dilution of the electrolyte in electrochemical sensors or corrosion inside the gas chamber. In specific solutions, it can use desiccants such as silica gel or molecular sieves to adsorb water vapor, which is suitable for low humidity requirements; condensation dehumidification: the gas is cooled to below the dew point by a cooling plate, causing water vapor to condense and be discharged, which is suitable for high humidity environments.

[0030] The fine filtration unit 53 is used to filter fine particles, such as PM2.5, oil mist, and some gaseous pollutants, such as SO2 and Cl2. It can employ a high-efficiency particulate air (HEPA) filter with a filtration accuracy of 0.3 μm, or a chemical filtration layer such as activated carbon to adsorb volatile organic compounds (VOCs).

[0031] The condensation unit 54 is used to further reduce the gas temperature and remove residual water vapor, while also condensing high-boiling-point contaminants such as oil vapor into liquid form for separation. When detecting high-temperature ambient gases such as boiler exhaust gas, the gas is first cooled to the sensor's operating temperature range, such as 0–50°C, by the condensation unit.

[0032] Example 2: Figure 4 As shown, the control module 3 is housed in an explosion-proof control cabinet. The explosion-proof control cabinet 6 also contains a gas leak detection unit 61 and an inert gas injection module 62. The gas leak detection unit 61 and the inert gas injection module 62 are respectively connected to the control module 3. When the gas leak detection unit 61 detects that the gas concentration reaches a threshold, inert gas is injected through the inert gas injection module 62 to suppress the risk of combustion.

[0033] The inert gas injection module 62 includes a gas storage container 621 and a controllable valve device 622, which is communicatively connected to the control module 3.

[0034] In this embodiment, the processing module 2, control module 3, gas leak detection unit 61, and inert gas injection module 62 are all housed within the explosion-proof control cabinet 6. By concentrating the relevant control and detection components together and utilizing the characteristics of the explosion-proof control cabinet, safe operation is ensured in environments where flammable and explosive gases may be present.

[0035] The gas leak detection unit 61 is used to monitor the gas concentration in the surrounding environment in real time. It achieves its detection function through various principles, such as catalytic combustion, infrared sensor technology, or photoionization. When the detected gas concentration reaches a preset threshold, it sends a signal to the control module 3, indicating a potential combustion risk.

[0036] The inert gas injection module 62 consists of a gas storage container 621 and a controllable valve device 622. The gas storage container 621 stores inert gases, such as nitrogen and argon. These gases are chemically stable and do not readily react with other substances, thus inhibiting combustion. The controllable valve device 622 is communicatively connected to the control module 3. When the control module 3 receives a gas concentration exceeding a threshold signal from the gas leak detection unit 61, it sends a command to the controllable valve device 622 to open the valve, injecting the inert gas from the gas storage container 621 into the corresponding space or equipment, thereby reducing the concentration of combustible gases and suppressing the risk of combustion.

[0037] It should be noted that the above content merely illustrates the technical concept of this utility model and cannot be used to limit the scope of protection of this utility model. For those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and all such improvements and modifications fall within the scope of protection of the claims of this utility model.

Claims

1. A hot flue gas carbon monoxide treatment device, comprising a gas chamber, a treatment module, and a control module, wherein the gas chamber is connected to a sampling pump, and the sampling pump introduces collected gas into the gas chamber; the treatment module includes an exhaust fan and an alarm module, characterized in that, The device also includes a gas pretreatment module, which sequentially comprises a primary filtration unit, a dehumidification unit, a fine filtration unit, and a condensation unit, for multi-stage purification of the gas to be collected.

2. The apparatus of claim 1, wherein: The inner wall of the gas chamber is provided with a corrosion-resistant coating. The internal cavity of the gas chamber is conical in shape, and a gas acquisition probe is installed in the cavity. The gas acquisition probe is communicatively connected to the control module for transmitting detection data.

3. The apparatus of claim 2, wherein: The gas sampling probe has a dustproof and waterproof coating to prevent dust, water vapor or corrosive substances from interfering with the sampling process.

4. The apparatus of claim 1, wherein: A quick-connect interface is further provided on one side of the air chamber for expanding the connection of the air chamber.

5. The apparatus of claim 1, wherein: The control module is housed in an explosion-proof control cabinet, which also includes a gas leak detection unit and an inert gas injection module. The gas leak detection unit and the inert gas injection module are communicatively connected to the control module. When the gas leak detection unit detects that the gas concentration has reached a threshold, inert gas is injected through the inert gas injection module to suppress the risk of combustion.

6. The apparatus of claim 5, wherein: The inert gas injection module includes a gas storage container and a controllable valve device, which is communicatively connected to the control module.

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