A shield tunnel smoke exhaust and purification integrated device, system and control method thereof

Abstract

The present invention relates to the technical field of tunnel ventilation, and in particular to a shield tunnel smoke exhaust purification integrated device, system and control method thereof, the device comprising: an air purification mechanism, arranged in a tunnel flue, comprising an air purification component and a fan component, the fan component being adjacent to the air purification component, and being used to provide power for air circulation in the flue, so that the airflow passing through the air purification component can be purified; an electric air valve mechanism, comprising a first electric air valve and a second electric air valve respectively arranged on a flue plate and located at the front and rear sides of the air purification mechanism, and a third electric air valve located downstream of the air purification mechanism in the flue; a sensing mechanism, comprising a temperature sensor and a particle concentration sensor; a control mechanism, comprising a local control component electrically connected to the air purification mechanism, the electric air valve mechanism and the sensing mechanism, respectively, and a central dispatching component communicatively connected to the local control component. The present invention can effectively improve the air quality level in the tunnel.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel ventilation, and in particular to a shield tunnel smoke exhaust and purification integrated device, system and control method thereof. Background Art

[0002] The tunnel smoke exhaust and purification integrated device is a comprehensive device that collects, purifies and discharges exhaust gas, smoke and other pollutants emitted by vehicles in the tunnel. Its design purpose is to achieve effective air quality control in the tunnel, reduce the accumulation of harmful substances during tunnel passage, and ensure driving safety and environmental hygiene.

[0003] In the prior art, longitudinal ventilation and smoke exhaust through flue plates are generally used to ensure air flow during normal traffic and fire situations. The smoke exhaust power relies on the centralized exhaust fan in the working pit at the junction of the shield section and the open-cut and buried section. When the tunnel is long, air pollutants in the tunnel are prone to accumulate and the concentration of pollutants exceeds the standard under normal traffic conditions. In the event of a fire, it is difficult to form a negative pressure in the tunnel in the first place only through the centralized smoke exhaust fan, and the smoke exhaust response is slow.

[0004] Therefore, how to invest in relevant equipment that can assist ventilation, purification and smoke exhaust in longer shield tunnels to improve the air quality level in the tunnel and increase the timeliness of smoke exhaust response when a fire occurs in the tunnel has become a problem that needs to be solved urgently. Summary of the invention

[0005] In view of at least one of the above technical problems, the present invention provides a shield tunnel smoke exhaust and purification integrated device, system and control method, which realizes efficient smoke purification and emission control by real-time monitoring of air temperature and particle concentration and combining the coordinated work of air purification components and electric air valves.

[0006] According to a first aspect of the present invention, there is provided a shield tunnel smoke exhaust and purification integrated device, which is installed in a shield tunnel smoke duct, comprising: An air purification mechanism is arranged in the tunnel flue, and comprises an air purification component and a fan component, wherein the fan component is adjacent to the air purification component and is used to provide power for the air circulation in the flue, so that the airflow passing through the air purification component can be purified; The electric damper mechanism comprises a first electric damper and a second electric damper respectively arranged on the flue plate and located at the front and rear sides of the air purification mechanism, and a third electric damper located downstream of the air purification mechanism in the flue; Sensing mechanisms, including temperature sensors and particle concentration sensors; The control mechanism includes a local control component electrically connected to the air purification mechanism, the electric air valve mechanism and the sensing mechanism respectively, and a central dispatching component communicatively connected to the local control component; Among them, the central dispatching component is configured to open the air purification mechanism and the first electric air valve and the third electric air valve at the same time when the temperature detected by the temperature sensor exceeds the threshold; and to open the air purification mechanism and the first electric air valve and the second electric air valve at the same time when the concentration detected by the particle concentration sensor exceeds the threshold.

[0007] In some embodiments of the present invention, the fan assembly is arranged behind the air purification assembly, the first electric air valve is arranged on the front side of the air purification assembly, and the second electric air valve is arranged on the rear side of the fan assembly. When purifying the air, the airflow enters from the first electric air valve and flows out from the second electric air valve.

[0008] In some embodiments of the present invention, the air purification mechanism includes a primary filter arranged in the front, a high-voltage generator arranged adjacent to the primary filter, an electrostatic adsorption component arranged adjacent to the high-voltage generator, and a purification partition arranged around the primary filter, the high-voltage generator and the electrostatic adsorption component.

[0009] In some embodiments of the present invention, the first electric air valve and the second electric air valve are arranged at the smoke exhaust port of the flue plate, and a flue partition filling both sides of the third electric air valve is provided between the flue plate and the top of the tunnel.

[0010] In some embodiments of the present invention, the fan assembly includes an axial flow fan fixed in the flue and a fan baffle connected to the peripheral side of the axial flow fan.

[0011] In some embodiments of the present invention, in the sensing mechanism, the particle concentration sensor includes a first sensor respectively arranged on the front side of the first electric air valve and a second sensor arranged between the air purification component and the fan component; the temperature sensor is placed at the bottom of the flue plate and located in front of the first electric air valve; the sensing mechanism also includes a wind speed sensor arranged between the air purification component and the fan component.

[0012] According to a second aspect of the present invention, a shield tunnel smoke exhaust purification system is also provided, comprising the above-mentioned shield tunnel smoke exhaust purification integrated device, wherein a plurality of the shield tunnel smoke exhaust purification integrated devices are arranged along the length direction of the tunnel.

[0013] According to a third aspect of the present invention, there is also provided a control method for the above-mentioned shield tunnel smoke exhaust purification system, comprising the following steps: Obtain real-time monitoring data from the sensing mechanisms on all shield tunnel smoke exhaust and purification integrated devices; Determine whether the temperature detected by each temperature sensor exceeds a threshold value, and if so, determine that a fire occurs at a location where the temperature exceeds the threshold value; Open the air purification mechanism and the third electric air valve in all the shield tunnel smoke exhaust and purification integrated devices between the first fire location and the exit side exhaust shaft, and open all the first electric air valves and the second electric air valves in the set smoke exhaust distance from the first fire location to the last fire location; Determine whether the data of each particle concentration sensor exceeds a set threshold value. If it exceeds the set threshold value, it is determined that the particle concentration in the tunnel at that location exceeds the standard; Open the air purification mechanism and the first electric air valve and the second electric air valve in all the shield tunnel smoke exhaust and purification integrated devices between the first location where the particulate matter concentration in the tunnel exceeds the standard and the exit exhaust shaft.

[0014] In some embodiments of the present invention, a system abnormality determination method is also included, wherein the system abnormality determination method includes abnormality determination of a fan air valve, and the abnormality determination of the fan air valve includes the following steps: The fan assembly and the third electric air valve are turned on to detect whether the monitoring data of the wind speed sensor is lower than the threshold. If it is lower than the threshold, it is determined that the fan air valve is abnormal.

[0015] In some embodiments of the present invention, the system abnormality determination method further includes purification abnormality, and the purification abnormality determination method includes the following steps: The air purification mechanism and the third electric air valve are turned on, and the purification rate of each air purification component is calculated according to the data of the first sensor and the second sensor. If the purification rate is lower than the threshold, it is determined that the air purification at that location is abnormal; The calculation formula of the purification rate is: Where: is the purification rate of the i-th exhaust and purification integrated device at time T; is the particle concentration of the first sensor of the i-th exhaust and purification integrated device at time t; is the particle concentration of the second sensor of the i-th exhaust and purification integrated device at time t; Calculate the cycle for the purification rate.

[0016] The beneficial effects of the present invention are as follows: the present invention filters and purifies the airflow in the flue through the air purification component, effectively removing particulate matter and harmful substances in the flue gas. The control mechanism decides whether to start the air purification mechanism and the air valve by sensing the specific situation in the tunnel flue, ensuring that the system saves energy while also keeping the air in the flue clean. In addition, the electric air valve mechanism can handle different types of situations more specifically and improve the purification effect through the combined operation of different air valves. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the structure of the integrated smoke exhaust and purification device for a shield tunnel according to an embodiment of the present invention; Figure 2 It is a schematic diagram of the air flow direction when the air purification mechanism and the first electric air valve and the third electric air valve are opened at the same time in an embodiment of the present invention; Figure 3 It is a schematic diagram of air flow direction when the air purification mechanism and the first electric air valve and the second electric air valve are opened at the same time in an embodiment of the present invention; Figure 4 is a schematic longitudinal section diagram of an air purification mechanism in an embodiment of the present invention; Figure 5 is a cross-sectional schematic diagram of an air purification mechanism in an embodiment of the present invention; Figure 6 A longitudinal sectional schematic diagram of an electric air valve mechanism in an embodiment of the present invention; Figure 7 It is a cross-sectional schematic diagram of the electric air valve mechanism in an embodiment of the present invention; Figure 8 is a schematic longitudinal section diagram of a fan assembly according to an embodiment of the present invention; Fig. 9 is a cross-sectional schematic diagram of a fan assembly according to an embodiment of the present invention; Fig.10 It is a schematic longitudinal section diagram of the sensing mechanism in an embodiment of the present invention; Fig.11 It is a structural schematic diagram of a shield tunnel smoke exhaust purification system in an embodiment of the present invention; Fig.12 A flowchart of the steps of a control method for a shield tunnel smoke exhaust purification system according to an embodiment of the present invention; Fig.13 A flowchart of the steps of determining abnormality of a fan air valve in an embodiment of the present invention; Fig.14 The figure is a flow chart of the steps of purification abnormality judgment in an embodiment of the present invention.

[0019] Explanation of the reference numerals: 01, flue plate; 1, air purification mechanism; 11, air purification component; 11a, primary filter; 11b, high voltage generator; 11c, electrostatic adsorption component; 11d, purification partition; 12, fan component; 12a, axial flow fan; 12b, fan partition; 2, electric air valve mechanism; 21, first electric air valve; 22, second electric air valve; 23, third electric air valve; 23a, flue partition; 3, sensing mechanism; 31, temperature sensor; 32, particle concentration sensor; 32a, first sensor; 32b, second sensor; 33, wind speed sensor; 4, control mechanism; 41, local control component; 42, central dispatch component. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0023] like Figures 1 to 10The shield tunnel smoke exhaust and purification integrated device shown includes: an air purification mechanism 1, an electric air valve mechanism 2, a sensing mechanism 3 and a control mechanism 4. The air purification mechanism 1 is arranged in the tunnel flue, and includes an air purification component 11 and a fan component 12. The fan component 12 is adjacent to the air purification component 11 and is used to provide power for the air circulation in the flue, so that the airflow passing through the air purification component 11 can be purified; the electric air valve mechanism 2 includes a first electric air valve 21 and a second electric air valve 22 which are respectively arranged on the flue plate 01 and are located on the front and rear sides of the air purification mechanism 1, and a third electric air valve 23 which is located downstream of the air purification mechanism 1 in the flue; the sensing mechanism 3 includes a temperature sensor 31 and a particle concentration sensor 32; the control mechanism 4 includes a local control component 41 which is electrically connected to the air purification mechanism 1, the electric air valve mechanism 2 and the sensing mechanism 3, and a central dispatching component 42 which is communicatively connected to the local control component 41. 42 As shown in Figure 1 As shown, the air purification component 11 is responsible for removing pollutants from the air, and the fan component 12 provides power for the air circulation in the flue to ensure that the airflow passing through the air purification component 11 can be purified. Here, the air purification component 11 includes a multi-stage filtering structure, and the filter modules at each stage are fixed by connectors for easy replacement and maintenance. The first electric air valve 21 and the second electric air valve 22 are respectively located on the front and rear sides of the air purification mechanism 1. The air flow direction can be controlled by controlling the valves. The third electric air valve 23 is installed downstream of the air purification mechanism 1 to adjust the discharge of purified air. Reasonably, the air valve is equipped with an intelligent adjustment function, which is used to reduce the opening when the pollution is low to save energy. The control mechanism 4 is divided into a local control component 41 and a central dispatching component 42. The local control component 41 is responsible for receiving sensor signals and issuing control instructions. The central dispatching component 42 communicates with the local control component 41 and initiates corresponding control measures when abnormal signals of temperature and particle concentration are received. Among them, as Figure 2 and Figure 3As shown, the central dispatching component 42 is configured to, when the temperature detected by the temperature sensor 31 exceeds the threshold, open the air purification mechanism 1 and the first electric air valve 21 and the third electric air valve 23 at the same time to ensure that the high-temperature air in the flue is purified and discharged immediately; when the concentration of the particle concentration sensor 32 exceeds the threshold, open the air purification mechanism 1 and the first electric air valve 21 and the second electric air valve 22 at the same time to filter and purify the particulate matter in the air. It should be understood here that the central dispatching component 42 is configured to adjust the working frequency of the air purification mechanism 1 and the air valve based on the preset multiple pollution degree state curves. The device filters and purifies the airflow in the flue through the air purification component 11, effectively removes the particulate matter and harmful substances in the smoke, and significantly improves the air quality in the tunnel. The sensing mechanism 3 is set so that the air purification and smoke exhaust process can respond quickly when a dangerous situation occurs, thereby improving the safety in the tunnel. In addition, the electric air valve mechanism 2 can flexibly adjust the air flow direction under different air pollution conditions, without the combined operation of the air valve, so that the device can more specifically deal with different types of pollution conditions and improve the purification effect.

[0024] In some embodiments of the present invention, the fan assembly 12 is arranged behind the air purification assembly 11, the first electric air valve 21 is arranged in front of the air purification assembly 11, and the second electric air valve 22 is arranged in the rear of the fan assembly 12. When purifying air, the airflow enters from the first electric air valve 21 and flows out from the second electric air valve 22. Figure 3 As shown, the fan assembly 12 is installed at the rear of the air purification assembly 11, so that the fan assembly 12 can continue to provide driving force for the airflow after the air passes through the air purification assembly 11, ensuring that the purified air can be discharged smoothly from the flue. The first electric air valve 21 is arranged before the airflow enters the air purification assembly 11 to control the amount of air entering the air purification assembly 11; the second electric air valve 22 is arranged after the airflow passes through the air purification assembly 11 and the fan assembly 12 to control the outflow direction of the purified air and ensure the air tightness and flow rate control during the purification and discharge process. This path of purified air allows the airflow to pass through the purification and discharge steps in sequence in the set direction and order, achieving efficient air treatment.

[0025] Furthermore, the air purification mechanism 1 includes a primary filter 11a disposed in front, a high-voltage generator 11b disposed adjacent to the primary filter 11a, an electrostatic adsorption member 11c disposed adjacent to the high-voltage generator 11b, and a purification partition 11d disposed around the primary filter 11a, the high-voltage generator 11b, and the electrostatic adsorption member 11c. Figure 4 and Figure 5As shown, the primary filter 11a is located at the front and is used to filter larger solid waste in the passing air. The setting of the primary filter 11a can effectively extend the service life of the subsequent purification equipment and reduce the burden on the filtration system. The high-voltage generator 11b is arranged adjacent to the primary filter 11a. The high-voltage generator 11b is used to generate high-voltage static electricity to ionize the passing air and charge the particles in the air. The electrostatic adsorbent 11c is used to generate low-voltage static electricity to adsorb the charged particles in the passing air, thereby purifying the particles in the air. The purification partition 11d is arranged around the primary filter 11a, the high-voltage generator 11b and the electrostatic adsorbent 11c. The purification partition 11d is used to fill the two sides of the primary filter 11a to prevent air from passing through places other than the primary filter 11a, the high-voltage generator 11b and the electrostatic adsorbent 11c, while improving the overall airflow distribution of the purification mechanism and enhancing the working efficiency of each component. The multi-level setting not only improves the air quality, but also effectively reduces the energy consumption of the system operation.

[0026] Specifically, the first electric air valve 21 and the second electric air valve 22 are arranged at the smoke outlet of the flue plate 01, and there is a flue partition 23a between the flue plate 01 and the top of the tunnel to fill the two sides of the third electric air valve 23. Figure 6 and Figure 7 As shown, the first electric air valve 21 and the second electric air valve 22 mainly adjust the airflow direction and flow rate in the flue to ensure that the purified air can be discharged smoothly, or switch to different smoke exhaust modes when necessary to cope with various air quality conditions. The flue baffle 23a set between the flue plate 01 and the top of the tunnel plays an important structural and functional role; the flue baffle 23a is filled on both sides of the third electric air valve 23. This design can optimize the airflow distribution in the flue, reduce the vortex and short circuit phenomenon in the flue, and improve the efficiency of airflow through the air valve. By combining the first electric air valve 21, the second electric air valve 22 and the flue baffle 23a, the system can better control the air flow. When smoke exhaust is required, the air valve can be opened accurately, and the structure of the baffle can be used to ensure that the air flows along the predetermined path to achieve the best smoke exhaust effect. In addition, the presence of the baffle can also prevent the mixing of air in different areas in the flue and maintain the efficiency of the air treatment process.

[0027] In addition, the fan assembly 12 includes an axial flow fan 12a fixed in the flue and a fan partition 12b connected to the peripheral side of the axial flow fan 12a. Figure 8 and Fig. 9As shown, the axial flow fan 12a is fixed in the flue and is responsible for promoting the air flow so that the air flows in a direction parallel to the axis, and can efficiently inhale and discharge the air from the flue. The design of the fan baffle 12b can help the air flow into the fan more evenly, reduce the vortex and instability of the air flow, and thus improve the working efficiency of the fan. By centrally guiding the airflow to the air inlet of the fan, the fan baffle 12b can increase the flow speed of the air, enhance the attraction and exhaust capacity of the fan. This setting makes the air flow more stable, reduces the problems caused by uneven airflow, and enhances the stability of the overall system.

[0028] In some embodiments of the present invention, in the sensing mechanism 3, the particle concentration sensor 32 includes a first sensor 32a respectively arranged in front of the first electric air valve 21 and a second sensor 32b arranged between the air purification component 11 and the fan component 12; the temperature sensor 31 is placed at the bottom of the flue plate 01 and located in front of the first electric air valve 21; the sensing mechanism 3 also includes a wind speed sensor 33 arranged between the air purification component 11 and the fan component 12. Fig.10 As shown, the first sensor 32a is arranged in front of the first electric air valve 21, which helps to evaluate the pollution level of the untreated air and ensure that the system can respond in time and perform corresponding processing. The second sensor 32b is located between the air purification component 11 and the fan component 12, which can help judge the purification effect and ensure that the system maintains an effective air purification level during operation. The temperature sensor 31 is located at the bottom of the flue plate 01 and in front of the first electric air valve 21. This position can accurately monitor the air temperature entering the purification system to ensure that the system can adjust its working state in real time during the purification and discharge process of the airflow to prevent safety hazards caused by excessive temperature. The wind speed sensor 33 is arranged between the air purification component 11 and the fan component 12, responsible for monitoring the speed of the airflow, so that the system can adjust the working state of the fan according to the airflow speed to optimize the flow and purification effect of the airflow. When the particle concentration or temperature exceeds the preset threshold, the system can start the corresponding air valve or fan in time to improve the air flow and purification effect, and ensure that the environment is always kept in a safe and comfortable state.

[0029] In a second aspect of the present invention, a shield tunnel smoke exhaust purification system is also provided, comprising the above-mentioned shield tunnel smoke exhaust purification integrated device, wherein a plurality of shield tunnel smoke exhaust purification integrated devices are arranged along the length direction of the tunnel. Fig.11 As shown in the figure, the system consists of multiple shield tunnel smoke exhaust and purification integrated devices arranged along the length of the tunnel. This layout is designed to ensure that the air in the tunnel is continuously and effectively purified, thereby improving the overall air quality and safety. Each device can work independently and adjust its operating status based on real-time monitoring data to keep the air in the tunnel within a safe and comfortable range.

[0030] According to a third aspect of the present invention, there is also provided a control method for the above-mentioned shield tunnel smoke exhaust purification system, comprising the following steps: Fig.12 As shown: S10: Acquire real-time monitoring data of the sensing mechanism 3 on all shield tunnel smoke exhaust and purification integrated devices; S20: Determine whether the temperature detected by each temperature sensor 31 exceeds a threshold value. If the temperature exceeds the threshold value, determine that a fire occurs at the location where the temperature exceeds the threshold value. S30: Open the air purification mechanism 1 and the third electric air valve 23 in all the shield tunnel smoke exhaust and purification integrated devices between the first fire location and the exit side exhaust shaft, and open all the first electric air valves 21 and the second electric air valves 22 of the set smoke exhaust distance from the first fire location to the last fire location; S40: Determine whether the data of each particle concentration sensor 32 exceeds a set threshold value. If it exceeds the set threshold value, determine that the particle concentration in the tunnel at the position exceeds the standard; S50: Open the air purification mechanism 1 and the first electric air valve 21 and the second electric air valve 22 in all the shield tunnel smoke exhaust and purification integrated devices between the first location where the particulate matter concentration in the tunnel exceeds the standard and the exit exhaust shaft.

[0031] In some embodiments of the present invention, a system abnormality determination method is also included, and the system abnormality determination method includes abnormality determination of a fan air valve, and the abnormality determination of the fan air valve includes the following steps: Fig.13 Shown: S10: Turn on the fan assembly 12 and the third electric air valve 23 to detect whether the monitoring data of the wind speed sensor 33 is lower than the threshold. If it is lower than the threshold, it is determined that the fan air valve is abnormal.

[0032] On the basis of the above embodiment, the system abnormality judgment method further includes purification abnormality, and the purification abnormality judgment method includes the following steps: Fig.14 As shown: S10: Turn on the air purification mechanism 1 and the third electric air valve 23, and calculate the purification rate of each air purification component 11 according to the data of the first sensor 32a and the second sensor 32b. If the purification rate is lower than the threshold, it is determined that the air purification at that location is abnormal; The calculation formula of purification rate is: Where: is the purification rate of the i-th exhaust and purification integrated device at time T; is the particle concentration of the first sensor of the i-th exhaust and purification integrated device at time t; is the particle concentration of the second sensor of the i-th exhaust and purification integrated device at time t; Calculate the cycle for the purification rate.

[0033] In combination with the above embodiments, we can understand that the real-time monitoring data of the sensing mechanism 3 on all shield tunnel smoke exhaust integrated devices is obtained to determine whether a fire occurs. If a fire occurs, the air purification mechanism 1 and the third electric air valve 23 in all shield tunnel smoke exhaust and purification integrated devices between the first fire location and the exit side exhaust shaft are opened, and all the first electric air valves 21 and the second electric air valves 22 at the set exhaust distance from the first fire location to the last fire location are opened. The system maintains this state until the fire is over.

[0034] If the temperature sensor 31 detects normally, it means that there is no fire, and the particle concentration in the tunnel is detected to see if it exceeds the standard. If the detection result shows that it exceeds the standard, the air purification mechanism 1 and the first electric air valve 21 and the second electric air valve 22 in all the shield tunnel smoke exhaust and purification integrated devices between the first location where the particle concentration in the tunnel exceeds the standard and the exit exhaust shaft are opened.

[0035] After the above detection is completed, the central dispatch component 42 will determine whether each smoke exhaust purification integrated device has an abnormality by checking the opening or closing status of the first sensor 32a, the second sensor 32b, the wind speed sensor 33, and the third electric air valve 23 in the electric air valve mechanism 2. The fan component 12 and the third electric air valve 23 are turned on to detect whether the monitoring data of the wind speed sensor 33 is lower than the threshold. If it is lower than the threshold, it is determined that the fan air valve is abnormal; the air purification mechanism 1 and the third electric air valve 23 are turned on to calculate the purification rate of each air purification component 11 according to the data of the first sensor 32a and the second sensor 32b. If the purification rate is lower than the threshold, it is determined that the air purification at that location is abnormal.

[0036] After the abnormality of each smoke exhaust and purification integrated device is determined, it enters the next cycle and continues the corresponding working cycle.

[0037] Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A shield tunnel smoke exhaust and purification integrated device, installed in the shield tunnel smoke duct, characterized in that: include: An air purification mechanism is arranged in the tunnel flue, and comprises an air purification component and a fan component, wherein the fan component is adjacent to the air purification component and is used to provide power for the air circulation in the flue, so that the airflow passing through the air purification component can be purified; The electric damper mechanism comprises a first electric damper and a second electric damper respectively arranged on the flue plate and located at the front and rear sides of the air purification mechanism, and a third electric damper located downstream of the air purification mechanism in the flue; Sensing mechanisms, including temperature sensors and particle concentration sensors; The control mechanism includes a local control component electrically connected to the air purification mechanism, the electric air valve mechanism and the sensing mechanism respectively, and a central dispatching component communicatively connected to the local control component; Among them, the central dispatching component is configured to open the air purification mechanism and the first electric air valve and the third electric air valve at the same time when the temperature detected by the temperature sensor exceeds the threshold; and to open the air purification mechanism and the first electric air valve and the second electric air valve at the same time when the concentration detected by the particle concentration sensor exceeds the threshold.

2. The shield tunnel smoke exhaust and purification integrated device according to claim 1 is characterized in that: The fan assembly is arranged behind the air purification assembly, the first electric air valve is arranged at the front side of the air purification assembly, and the second electric air valve is arranged at the rear side of the fan assembly. When purifying the air, the air flow enters from the first electric air valve and flows out from the second electric air valve.

3. The shield tunnel smoke exhaust and purification integrated device according to claim 1 is characterized in that: The air purification mechanism includes a primary filter arranged in the front, a high-voltage generator arranged adjacent to the primary filter, an electrostatic adsorption component arranged adjacent to the high-voltage generator, and a purification partition arranged around the primary filter, the high-voltage generator and the electrostatic adsorption component.

4. The shield tunnel smoke exhaust and purification integrated device according to claim 1, characterized in that: The first electric air valve and the second electric air valve are arranged at the smoke exhaust port of the flue plate, and a flue partition filling both sides of the third electric air valve is provided between the flue plate and the top of the tunnel.

5. The shield tunnel smoke exhaust and purification integrated device according to claim 1, characterized in that: The fan assembly comprises an axial flow fan fixed in the flue and a fan partition connected to the peripheral side of the axial flow fan.

6. The shield tunnel smoke exhaust and purification integrated device according to claim 1, characterized in that: In the sensing mechanism, the particle concentration sensor includes a first sensor respectively arranged on the front side of the first electric air valve and a second sensor arranged between the air purification component and the fan component; the temperature sensor is placed at the bottom of the flue plate and located in front of the first electric air valve; the sensing mechanism also includes a wind speed sensor arranged between the air purification component and the fan component.

7. A shield tunnel smoke exhaust purification system, characterized in that: It comprises a plurality of integrated shield tunnel smoke exhaust and purification devices as described in any one of claims 1 to 6, and the plurality of integrated shield tunnel smoke exhaust and purification devices are arranged along the length direction of the tunnel.

8. A control method for a shield tunnel smoke exhaust purification system as claimed in claim 7, characterized in that: The following steps are involved: Obtain real-time monitoring data from the sensing mechanisms on all shield tunnel smoke exhaust and purification integrated devices; Determine whether the temperature detected by each temperature sensor exceeds a threshold value, and if so, determine that a fire occurs at a location where the temperature exceeds the threshold value; Open the air purification mechanism and the third electric air valve in all the shield tunnel smoke exhaust and purification integrated devices between the first fire location and the exit side exhaust shaft, and open all the first electric air valves and the second electric air valves in the set smoke exhaust distance from the first fire location to the last fire location; Determine whether the data of each particle concentration sensor exceeds a set threshold value. If it exceeds the set threshold value, it is determined that the particle concentration in the tunnel at that location exceeds the standard; Open the air purification mechanism and the first electric air valve and the second electric air valve in all the shield tunnel smoke exhaust and purification integrated devices between the first location where the particulate matter concentration in the tunnel exceeds the standard and the exit exhaust shaft.

9. The control method of the shield tunnel smoke exhaust purification system according to claim 8, characterized in that: Also included is a system abnormality judgment method, the system abnormality judgment method includes abnormality judgment of a fan air valve, and the abnormality judgment of the fan air valve includes the following steps: The fan assembly and the third electric air valve are turned on to detect whether the monitoring data of the wind speed sensor is lower than the threshold. If it is lower than the threshold, it is determined that the fan air valve is abnormal.

10. The control method of the shield tunnel smoke exhaust purification system according to claim 9, characterized in that: The system abnormality judgment method also includes purification abnormality, and the purification abnormality judgment method includes the following steps: The air purification mechanism and the third electric air valve are turned on, and the purification rate of each air purification component is calculated according to the data of the first sensor and the second sensor. If the purification rate is lower than the threshold, it is determined that the air purification at that location is abnormal; The calculation formula of the purification rate is: ； Where: is the purification rate of the i-th exhaust and purification integrated device at time T; is the particle concentration of the first sensor of the i-th exhaust and purification integrated device at time t; is the particle concentration of the second sensor of the i-th exhaust and purification integrated device at time t; Calculate the cycle for the purification rate.

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