Malodorous gas detection and alarm system for sludge treatment workshop

Abstract

The utility model relates to the technical field of gas detection, and provides a foul gas detection and alarm system for a sludge treatment workshop. The malodorous gas detection and alarm system of the sludge treatment workshop comprises a central processing unit for controlling signal transmission and work among units, a power supply control unit for energy supply and electric energy on-off control among the units, and a sensing detection unit for real-time detection of gas concentration of a target area, the data acquisition unit is used for receiving and processing the original data transmitted by the sensing detection unit; the data comparison unit is used for performing data comparison between the detection data and a concentration threshold value; the mobile terminal device is used for displaying the alarm information to a target worker; and the communication transmission unit is used for communication connection between the central processing unit and the mobile terminal device. By monitoring the concentration of the malodorous gas in real time and triggering an alarm mechanism when the concentration exceeds the standard, safety accidents caused by gas leakage are effectively prevented.

Description

Technical Field

[0001] The present application relates to the field of gas detection technology, and in particular to a malodorous gas detection and alarm system for a sludge treatment workshop. Background Art

[0002] After municipal sludge is dehydrated and piled up, it is decomposed by microorganisms in an environment with high temperature and poor ventilation, which produces a pungent odor.

[0003] At present, odor detection in sludge treatment workshops is not perfect. When malodorous gas appears at a certain location in the sludge treatment workshop, the staff cannot be notified in time to conduct inspections and take effective preventive measures. The real-time performance is insufficient, which leads to the spread of malodorous gas. Summary of the Invention

[0004] In view of this, the present application provides a malodorous gas detection and alarm system for a sludge treatment workshop to solve the problem of real-time detection of malodorous gases.

[0005] The first aspect of the present application provides a malodorous gas detection and alarm system for a sludge treatment workshop, the system comprising:

[0006] Central processing unit, used to control the information transmission between various units and coordinate the work between various units;

[0007] The power control unit is used to provide stable power to each unit and control the power supply on and off of each unit;

[0008] A sensing detection unit, used to detect the concentration of irritating gases in each target area in real time;

[0009] a data acquisition unit, configured to collect the original detection data transmitted by the sensing detection unit and perform preliminary data processing to obtain first detection data;

[0010] a data comparison unit, configured to compare the first detection data with a preset concentration threshold;

[0011] an alarm control unit, configured to perform emergency processing according to a preset emergency processing method when the first detection data exceeds the concentration threshold;

[0012] A mobile terminal device, configured to receive and display the alarm information sent by the central processing unit to a target worker, and to send emergency handling instructions to the central processing unit;

[0013] The communication transmission unit is used to establish a communication connection between the central processing unit and the mobile terminal device.

[0014] In an optional embodiment, the central processing unit is an embedded microprocessor.

[0015] In an optional embodiment, the power control unit is powered by a multi-cell ER34615 sulfurous acid chloride battery pack.

[0016] In an optional embodiment, the communication transmission unit adopts the ZigBee wireless communication protocol.

[0017] In an optional embodiment, the sensing detection unit includes:

[0018] MEMS gas sensors are used to detect the concentration of gases such as carbon monoxide and ammonia;

[0019] Electrochemical gas sensors for detecting concentrations of gases such as nitrogen oxides, hydrogen cyanide, and hydrogen sulfide;

[0020] PID gas sensor, used to detect the concentration of gases such as volatile organic compounds.

[0021] In an optional embodiment, the alarm control unit includes:

[0022] an emergency warning device, configured to drive the warning device according to a preset emergency control signal when the first detection data exceeds the concentration threshold, so as to alert staff in the target area;

[0023] The emergency treatment device is used to drive the deodorization device according to the emergency control signal when the first detection data exceeds the concentration threshold, so as to reduce the concentration of the irritating gas in the target area.

[0024] In an optional embodiment, the mobile terminal device is a mobile phone, a tablet and / or a computer.

[0025] In an optional embodiment, the system is applied to several sludge treatment workshops, and the system includes a detection and alarm subsystem arranged in each sludge treatment workshop, a central control server connected to several of the detection and alarm subsystems, a mobile terminal device, and a communication transmission unit arranged between the central control server and the mobile terminal device.

[0026] In summary, this application has at least the following beneficial technical effects:

[0027] 1. By real-time monitoring of the concentration of malodorous gases in the sludge treatment workshop and immediately triggering the alarm mechanism when the concentration exceeds the standard, it can effectively prevent safety accidents caused by gas leakage or accumulation and protect the life and health of workers.

[0028] 2. Through automatic data processing and comparison, once an abnormal situation is detected, an alarm can be quickly triggered and staff can be notified in a timely manner through mobile terminal devices, thereby greatly shortening the emergency response time.

[0029] 3. Intelligent monitoring and management of malodorous gases in the sludge treatment workshop reduces the frequency and intensity of manual inspections, improving management efficiency. At the same time, data recording and analysis help identify potential safety hazards and take appropriate preventive measures.

[0030] 4. Through accurate monitoring and timely alarm, problems such as equipment damage and environmental pollution caused by gas leakage can be avoided, thereby reducing the operating costs and maintenance costs of the sludge treatment workshop. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0032] Figure 1 This is a structural diagram of the malodorous gas detection and alarm system for a sludge treatment workshop provided in Example 1 of the present application;

[0033] Figure 2 This is a structural diagram of the malodorous gas detection and alarm system for a sludge treatment workshop provided in Example 2 of the present application. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0035] refer to Figure 1 FIG2 is a schematic diagram of the structure of the malodorous gas detection and alarm system for a sludge treatment plant provided in Example 1 of the present application. The malodorous gas detection and alarm system for a sludge treatment plant provided in Example 1 is applied to gas detection and alarm at multiple locations in a single sludge treatment plant.

[0036] The central processing unit used to control the information transmission between each unit and coordinate the work between each unit adopts an embedded microprocessor. Among them, the embedded microprocessor has the advantages of higher working stability, lower power consumption, strong adaptability to the environment (such as temperature, humidity, electromagnetic field, vibration, etc.), smaller size, more integrated functions, and low cost. The central control processing unit is mainly responsible for coordinating the transmission of instructions between the units, controlling the input and output of each module and sensor, processing various algorithms and instructions, storing instructions, data and variables and other complex tasks, so as to meet the requirements of the system of this application. The embedded microprocessor receives the malodorous gas composition and concentration data and alarm information output by each unit, and transmits the alarm information and preventive measures for malodorous gases to the mobile terminal devices of the target staff in the workshop through the communication transmission unit. The target staff will take corresponding measures in time to prevent the spread of malodorous gases in the entire sludge treatment workshop, thereby affecting human health and the surrounding environment and soil.

[0037] The power control unit, used to provide stable power to each unit and control the on / off power supply to each unit, is powered by a multi-cell ER34615 sodium sulfite chloride battery pack. In an optional embodiment, the power control unit serves as an energy storage device, using mains electricity to power each unit in the system when the power grid is operating normally. In this case, the power control unit is only used to control the on / off power supply of each unit. In the event of a power outage or an emergency in the workshop, the power control unit is used to provide emergency energy for the system.

[0038] The sensor detection unit, used for real-time monitoring of irritating gas concentrations in various target areas, detects odorous gas variables in the sludge treatment workshop and converts these variables into electrical signals, which are then transmitted to the data acquisition unit. The sensor detection unit is composed of multiple highly sensitive sensors with varying gas detection capabilities, such as micro-electro-mechanical systems (MEMS) gas sensors, electrochemical gas sensors, and photoionization detector (PID) gas detection sensors. By using different gas sensors to detect corresponding odorous gases, rapid monitoring of odorous gas concentrations and composition within the sludge treatment workshop can be achieved.

[0039] Exemplarily, the sensor detection unit integrates a MEMS gas sensor, an electrochemical gas sensor, and a PID gas detection sensor. MEMS gas sensors are used to detect the concentration of gases such as carbon monoxide and ammonia, and feature small size, low power consumption, high sensitivity, and fast response speed. Electrochemical gas sensors are used to detect the concentration of gases such as nitrogen oxides, hydrogen cyanide, and hydrogen sulfide, and feature high sensitivity, fast response speed, and low cost. PID gas sensors are used to detect the concentration of gases such as volatile organic compounds, and feature fast response speed, high sensitivity, and a wide detection range.

[0040] A data acquisition unit is configured to collect the raw detection data transmitted by the sensing unit and perform preliminary data processing to obtain first detection data. The data acquisition unit filters, amplifies, and calibrates the collected raw detection data to improve signal reliability and stability, thereby ensuring accurate detection of toxic and malodorous gases and obtaining processed first detection data. The data acquisition unit utilizes digital filtering techniques (e.g., a low-pass filter) to filter the gas sensor signal to eliminate noise and interference, thereby improving signal quality and accuracy. The data acquisition unit utilizes a signal amplifier circuit to enhance the amplitude of the sensor output signal, making it easier to detect and process. The data acquisition unit converts the analog sensor output signal into a digital signal for digital signal processing and analysis. Furthermore, the data acquisition unit calibrates the sensor based on known standard or reference gas concentrations to ensure accurate correspondence between its output and actual gas concentration. In an optional embodiment, the data acquisition unit also stores the pre- and post-processing data for subsequent analysis, comparison, and calibration.

[0041] The data comparison unit for comparing the first detection data with the preset concentration threshold obtains the processed first detection data from the data acquisition unit to further perform data standardization, data classification, data comparison and other data processing to ensure that different data can accurately correspond to the corresponding odor components and concentrations, correctly and effectively transmit signals, and avoid the sludge treatment workshop odor gas detection alarm system misjudgment and cause alarms. Among them, the data comparison unit performs standardization processing on the data output by different gas sensors, and establishes standard sample data of the main components and concentrations of odorous gases for calibration analysis and comparison. Then, a classification algorithm is used to classify the data on the components and content of odorous gases, so as to ensure accurate alarms. Finally, based on the standardized sample data, the sample data of different odorous gas concentrations detected by the sensor and the data of the standardized samples are compared and analyzed. When the first detection data exceeds the preset concentration threshold, the data comparison unit sends the comparison results to the central processing unit.

[0042] When the first detection data exceeds the concentration threshold, the central processing unit sends an alarm signal to the alarm control unit after receiving the target signal sent by the data comparison unit. In order to cope with different malodorous gases and concentration scenarios, the alarm control unit sets different alarm levels. Among them, the alarm control unit includes an emergency warning device, which is used to send an alarm signal to the workshop personnel through sound, light flash, vibration, etc. when the first detection data exceeds the concentration threshold, so as to remind the workshop personnel to pay attention to the spread of malodorous gases and take corresponding manual anti-odor measures. In an optional embodiment, the alarm control unit also includes an emergency processing device, which is used to drive the anti-odor device to reduce the concentration of irritating gases in the workshop when the first detection data exceeds the concentration threshold, thereby realizing corresponding automatic anti-odor measures. For example, the alarm control unit controls the fan in the ventilation duct to speed up the air circulation inside and outside the workshop to reduce the concentration of malodorous gases (i.e., irritating gases) in the workshop.

[0043] The mobile terminal device used to receive and display the alarm information sent by the central processing unit to the target staff, and send emergency processing instructions to the central processing unit, can be a portable device such as a mobile phone, tablet and / or computer.

[0044] The communication transmission unit is used to connect the central processing unit and the mobile terminal device, and adopts the ZigBee wireless communication protocol to carry out network communication between the various units in the system of this application. It should be understood that Zigbee technology, also known as purple bee technology, can operate on three frequency bands: 2.4GHz, 868MHz and 915MHz, with a transmission distance of 10-75m, but it can be further increased. The Zigbee communication protocol has the characteristics of low power consumption, low cost, easy deployment, stability and reliability, and is widely used in the fields of Internet of Things, industrial automation, etc., and is suitable for the construction method of this system.

[0045] refer to Figure 2 FIG2 is a schematic diagram of the structure of the malodorous gas detection and alarm system for a sludge treatment plant provided in Example 2 of the present application. The malodorous gas detection and alarm system for a sludge treatment plant provided in Example 2 is applied to gas detection and alarm in several sludge treatment plants.

[0046] The system provided in Example 2 of the present application includes a detection and alarm subsystem installed in each sludge treatment workshop, a central control server connected to several of the detection and alarm subsystems, a mobile terminal device, and a communication transmission unit installed between the central control server and the mobile terminal device.

[0047] It should be understood that the detection and alarm subsystem is used to implement the functions of the power control unit, the sensor detection unit, the data acquisition unit, the data comparison unit, and the alarm control unit in Example 1 of the present application. The central control server is used to implement the functions of the central processing unit in Example 1 of the present application. The functions and structures of each unit in the malodorous gas detection and alarm system for the sludge treatment workshop provided in Example 1 are also applicable to the malodorous gas detection and alarm system for the sludge treatment workshop in Example 2. Through the detailed description of the malodorous gas detection and alarm system for the sludge treatment workshop in Example 1, those skilled in the art can clearly understand the malodorous gas detection and alarm system for the sludge treatment workshop in Example 2. For the sake of brevity of the specification, it will not be described in detail here.

[0048] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the module division is only a logical function division, and other division methods may be used in actual implementation.

[0049] The modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical units, and may be located in one place or distributed across multiple network elements. Some or all of the modules may be selected to achieve the purpose of this embodiment based on actual needs.

[0050] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A malodorous gas detection and alarm system for a sludge treatment workshop, characterized in that: The system comprises: Central processing unit, used to control the information transmission between various units and coordinate the work between various units; The power control unit is used to provide stable power to each unit and control the power supply on and off of each unit; A sensing detection unit, used to detect the concentration of irritating gases in each target area in real time; a data acquisition unit, configured to collect the original detection data transmitted by the sensing detection unit and perform preliminary data processing to obtain first detection data; a data comparison unit, configured to compare the first detection data with a preset concentration threshold; an alarm control unit, configured to perform emergency processing according to a preset emergency processing method when the first detection data exceeds the concentration threshold; A mobile terminal device, configured to receive and display the alarm information sent by the central processing unit to a target worker, and to send emergency handling instructions to the central processing unit; The communication transmission unit is used to establish a communication connection between the central processing unit and the mobile terminal device.

2. The malodorous gas detection and alarm system for a sludge treatment workshop according to claim 1 is characterized in that: The central processing unit is an embedded microprocessor.

3. The malodorous gas detection and alarm system for a sludge treatment workshop according to claim 1 is characterized in that: The power control unit is powered by a multi-section ER34615 sulfurous acid chloride battery pack.

4. The malodorous gas detection and alarm system for a sludge treatment plant according to claim 1 is characterized in that: The communication transmission unit adopts the ZigBee wireless communication protocol.

5. The malodorous gas detection and alarm system for a sludge treatment workshop according to claim 1 is characterized in that: The sensing detection unit includes: MEMS gas sensors are used to detect the concentration of gases such as carbon monoxide and ammonia; Electrochemical gas sensors for detecting concentrations of gases such as nitrogen oxides, hydrogen cyanide, and hydrogen sulfide; PID gas sensor, used to detect the concentration of gases such as volatile organic compounds.

6. The malodorous gas detection and alarm system for a sludge treatment plant according to claim 1 is characterized in that: The alarm control unit includes: an emergency warning device, configured to drive the warning device according to a preset emergency control signal when the first detection data exceeds the concentration threshold, so as to alert staff in the target area; The emergency treatment device is used to drive the deodorization device according to the emergency control signal when the first detection data exceeds the concentration threshold, so as to reduce the concentration of the irritating gas in the target area.

7. The malodorous gas detection and alarm system for a sludge treatment plant according to claim 1 is characterized in that: The mobile terminal device is a mobile phone, a tablet and / or a computer.

8. The malodorous gas detection and alarm system for a sludge treatment plant according to claim 1 is characterized in that: The system is used in several sludge treatment workshops. The system includes a detection and alarm subsystem set up in each sludge treatment workshop, a central control server connected to several of the detection and alarm subsystems, a mobile terminal device, and a communication transmission unit set between the central control server and the mobile terminal device.

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