Intelligent equipment for monitoring and alarming harmful gas in limited space of water supply and drainage structure

Abstract

The utility model relates to a water supply and drainage structure limited space harmful gas monitoring alarm intelligent device, which comprises a host, a device box and a probe, and is characterized in that the host comprises an explosion-proof casing and a touch screen, and a main control board is arranged in the explosion-proof casing; the equipment box comprises an anti-explosion shell, and a CH4 sensor, an H2S sensor, a CO sensor and an O2 sensor are arranged in the anti-explosion shell and used for detecting the concentration of methane, the concentration of carbon monoxide, the concentration of hydrogen sulfide and the concentration of oxygen respectively; the CH4 sensor, the H2S sensor, the CO sensor and the O2 sensor are connected with four probes mounted outside the explosion-proof shell in a one-to-one correspondence manner; and the host is connected and communicated with the equipment box through an explosion-proof line pipe. The equipment has explosion-proof and waterproof capabilities, can realize on-site collection of four hidden danger gases, has the advantages of long endurance time and wide working temperature range, can realize remote centralized control and short-distance communication functions, and can effectively provide reference for construction operation.

Description

Technical Field

[0001] This utility model relates to the field of detection technology and detection equipment, specifically to an intelligent device for monitoring and alarming harmful gases in confined spaces of water supply and drainage structures. Background Technology

[0002] Working in confined spaces during water supply and drainage operations carries risks of poisoning, asphyxiation, explosions, and fires, with poisoning and asphyxiation being the most common. The toxic and harmful gases that cause these accidents are primarily hydrogen sulfide and carbon monoxide. In recent years, my country has gradually increased its investment in the construction of intelligent water management platforms, with the application of "hazardous gas monitoring systems" being particularly important. Currently, gas detectors on the market are mainly of several types, including portable and fixed-installation models. Portable detectors are brought to the site by the inspectors and cannot detect the concentration of harmful gases in the confined construction space in advance, resulting in delayed information provision and hindering proactive planning. Fixed-installation detectors, although installed directly on-site, are generally battery-powered, which limits their long-term operation due to battery capacity and battery life. Furthermore, the 0-45℃ battery operating temperature range does not meet industrial requirements. In addition, existing detectors lack sufficient explosion-proof and waterproof features, as well as network communication capabilities. Utility Model Content

[0003] The technical problem this invention aims to solve is to overcome the shortcomings of existing gas detectors used for monitoring confined spaces in water supply and drainage systems, such as information lag, high power consumption, insufficient battery life, and deficiencies in explosion-proof, waterproof, and network communication functions. This invention provides an intelligent monitoring and alarm device for harmful gases in confined spaces of water supply and drainage structures. Through time-division multiplexing, it can simultaneously drive four sensors to collect data on gases including methane, carbon monoxide, hydrogen sulfide, and oxygen, while also collecting ambient temperature values ​​for reference during construction. Powered by a high-energy-density lithium-ion battery, the device's operating temperature range is extended to -40℃ to 85℃, meeting industrial environmental requirements. The device integrates a 4G network module, enabling timely uploading of gas concentration and temperature information to a server for analysis by the system monitoring center. It also features a Bluetooth module for short-range communication, allowing users to view nearby gas concentration and temperature information using mobile devices such as smartphones and tablets. All electronic components and wiring are housed within an explosion-proof enclosure, providing both explosion-proof and waterproof capabilities.

[0004] This intelligent monitoring and alarm device for hazardous gases in confined spaces of water supply and drainage structures includes a main unit, an equipment box, and probes. The main unit includes an explosion-proof housing and a touch screen, with a main control board housed inside the explosion-proof housing. The equipment box includes an explosion-proof housing, within which are installed CH4, H2S, CO, and O2 sensors for detecting the concentrations of methane, carbon monoxide, hydrogen sulfide, and oxygen, respectively. The CH4, H2S, CO, and O2 sensors are connected one-to-one with four probes installed outside the explosion-proof housing. The main unit and the equipment box are connected and interconnected via explosion-proof conduit.

[0005] Furthermore, the main control board integrates a CPU processor, a time-division multiplexer, a communication mechanism consisting of a Bluetooth module and a 4G module, and a lithium-ion battery. The CH4 sensor, H2S sensor, CO sensor, and O2 sensor are connected to the CPU processor via the time-division multiplexer. The Bluetooth module and 4G module form a serial bidirectional data connection between the touch screen and the CPU processor. The lithium-ion battery powers the CPU processor and the CH4 sensor, H2S sensor, CO sensor, and O2 sensor.

[0006] Furthermore, it also includes a relay module, through which the lithium-ion battery is connected to the power input terminals of the CH4 sensor, H2S sensor, CO sensor, and O2 sensor respectively.

[0007] This utility model discloses an intelligent device for monitoring and alarming harmful gases in confined spaces of water supply and drainage structures. It overcomes the shortcomings of existing gas detectors used for monitoring confined spaces in water supply and drainage systems, such as information lag, high power consumption, insufficient battery life, and deficiencies in explosion-proof, waterproof, and network communication functions. Its beneficial effects include...

[0008] (1) Through time-division multiplexing design, four sensors can be driven to work simultaneously to collect gases including methane, carbon monoxide, hydrogen sulfide, and oxygen, and at the same time collect ambient temperature values ​​to provide a reference for construction.

[0009] (2) At the same time, the high-energy-density lithium-ion batteries are used to power the equipment, extending the operating temperature range of the equipment to -40℃ to 85℃, which meets the requirements of industrial environment;

[0010] (3) The equipment integrates a 4G network module, which can upload information such as gas concentration and temperature to the server in a timely manner for analysis by the system monitoring center. It also has a Bluetooth module to realize short-range communication function. When working near the equipment, users can use mobile terminals such as mobile phones and tablets to view information such as gas concentration and temperature in the vicinity.

[0011] (4) All electronic components and circuits are built into an explosion-proof enclosure, which is both explosion-proof and waterproof. Attached Figure Description

[0012] The following description, in conjunction with the accompanying drawings, further illustrates the intelligent device for monitoring and alarming harmful gases in confined spaces of water supply and drainage structures according to this utility model:

[0013] Figure 1 This is a schematic diagram of the plan structure of the intelligent device for monitoring and alarming harmful gases in the confined space of this water supply and drainage structure;

[0014] Figure 2 This is a wireframe diagram illustrating the logic structure and connection principle of the intelligent device for monitoring and alarming hazardous gases in confined spaces of water supply and drainage structures, as described in Implementation Method 2.

[0015] Figure 3 This is a wireframe diagram illustrating the logic structure and connection principle of the intelligent device for monitoring and alarming hazardous gases in confined spaces of water supply and drainage structures, in Implementation Method 3.

[0016] In the picture:

[0017] 1-Main unit; 11-Explosion-proof housing; 12-Touchscreen;

[0018] 2-Equipment box; 21-Explosion-proof housing; 22-CH4 sensor; 23-H2S sensor; 24-CO sensor; 25-O2 sensor;

[0019] 3-Probe;

[0020] 4-Main control board; 41-CPU processor, 42-Time division multiplexer, 43-Bluetooth module, 44-4G module, 45-Lithium-ion battery, 46-Relay module. Detailed Implementation

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0022] In the description of this utility model, it should be understood that the terms "left", "right", "front", "rear", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] The present invention will be further described below with specific embodiments, but the scope of protection of the present invention is not limited to the following embodiments.

[0024] Implementation method 1: such as Figure 1 As shown, the intelligent monitoring and alarm device for hazardous gases in confined spaces of this water supply and drainage structure includes a main unit 1, an equipment box 2, and probes 3. The main unit 1 includes an explosion-proof housing 11 and a touch screen 12, and a main control board 4 is installed inside the explosion-proof housing 11. The equipment box 2 includes an explosion-proof housing 21, and CH4 sensor 22, H2S sensor 23, CO sensor 24, and O2 sensor 25 are installed inside the explosion-proof housing 21 to detect the concentrations of four gases: methane, carbon monoxide, hydrogen sulfide, and oxygen, respectively. The CH4 sensor 22, H2S sensor 23, CO sensor 24, and O2 sensor 25 are connected one-to-one with the four probes 3 installed outside the explosion-proof housing 21. The main unit 1 and the equipment box 2 are connected and communicated through an explosion-proof conduit 5. The entire explosion-proof enclosure consists of an explosion-proof housing, explosion-proof conduit, and explosion-proof shell. All electronic components and wiring, except for the probe, are housed within this enclosure. The explosion-proof conduit connects to the explosion-proof housing at both ends. The housing and shell are sealed against moisture and air through integral molding or the addition of rubber gaskets, providing both explosion-proof and waterproof capabilities. A touchscreen serves as the interactive interface for displaying data and inputting settings.

[0025] Implementation method 2: such as Figure 2As shown, the main control board 4 of this intelligent device for monitoring and alarming hazardous gases in confined spaces of water supply and drainage structures integrates a communication mechanism consisting of a CPU processor 41, a time-division multiplexer 42, a Bluetooth module 43 and a 4G module 44, and a lithium-ion battery 45. The CH4 sensor 22, H2S sensor 23, CO sensor 24, and O2 sensor 25 are connected to the CPU processor 41 via the time-division multiplexer 42. The Bluetooth module 43 and the 4G module 44 and the touch screen 12 are serially bidirectionally connected to the CPU processor 41. The lithium-ion battery 45 powers the CPU processor 41 and the CH4 sensor 22, H2S sensor 23, CO sensor 24, and O2 sensor 25. Through time-division multiplexing design, four sensors can be driven simultaneously to collect data on gases including methane, carbon monoxide, hydrogen sulfide, and oxygen. The device box can be expanded to include a temperature sensor to collect ambient temperature values, providing a reference for construction. Meanwhile, the power supply uses a high-energy-density lithium-ion battery, extending the device's operating temperature range to -40℃ to 85℃, meeting industrial environment requirements. The device integrates a 4G network module, which can upload gas concentration values, temperature, and other information to the server in a timely manner for analysis by the system monitoring center. It also features a Bluetooth module for short-range communication, allowing users to view nearby gas concentrations and temperatures using mobile devices such as smartphones and tablets while working near the device. The remaining structures and components are as described in Embodiment 1 and will not be repeated here.

[0026] Implementation method 3: such as Figure 3 As shown, this intelligent device for monitoring and alarming hazardous gases in confined spaces of water supply and drainage structures also includes a relay module 46. The lithium-ion battery 45 is connected to the power input terminals of the CH4 sensor 22, H2S sensor 23, CO sensor 24, and O2 sensor 25 via the relay module 46. Users can set the sensor acquisition intervals on the CPU via a touchscreen or a near / remote communication mechanism according to actual needs. The relay module's on / off switching powers each sensor during the acquisition period and disconnects the power supply to the sensors (which are the main power-consuming components) during non-acquisition periods, allowing the entire device to enter a low-power state and extend its service life. With a high-energy-density lithium-ion battery, the device can operate continuously for 3-5 years, significantly reducing maintenance. The remaining structures and components are as described in Embodiment 1 and will not be repeated.

[0027] This intelligent monitoring and alarm device for hazardous gases in confined spaces of water supply and drainage structures overcomes the shortcomings of existing gas detectors used for monitoring enclosed spaces in water supply and drainage systems, such as information lag, high power consumption, insufficient battery life, and deficiencies in explosion-proof, waterproof, and network communication functions. Through time-division multiplexing design, it can simultaneously drive four sensors to collect data on gases including methane, carbon monoxide, hydrogen sulfide, and oxygen, while also collecting ambient temperature values ​​to provide a reference for construction. Powered by a high-energy-density lithium-ion battery, the device's operating temperature range is extended to -40℃ to 85℃, meeting industrial environment requirements. The device integrates a 4G network module, enabling timely uploading of gas concentration and temperature information to a server for analysis by the system monitoring center. It also features a Bluetooth module for short-range communication, allowing users to view nearby gas concentration and temperature information using mobile devices such as smartphones and tablets while working near the device. All electronic components and wiring are housed within an explosion-proof enclosure, providing both explosion-proof and waterproof capabilities.

[0028] The above description illustrates the main features, basic principles, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments or examples described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the above embodiments or examples should be considered exemplary and not restrictive. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An intelligent device for monitoring and alarming harmful gases in confined spaces of water supply and drainage structures, characterized in that: Includes a main unit (1), a device box (2), and a probe (3), wherein, The host (1) includes an explosion-proof housing (11) and a touch screen (12). The explosion-proof housing (11) contains a main control board (4). The equipment box (2) includes an explosion-proof housing (21), and the explosion-proof housing (21) contains CH4 sensor (22), H2S sensor (23), CO sensor (24), and O2 sensor (25) for detecting the concentrations of four gases: methane, carbon monoxide, hydrogen sulfide, and oxygen. The CH4 sensor (22), H2S sensor (23), CO sensor (24), and O2 sensor (25) are connected to four probes (3) installed outside the explosion-proof housing (21). The host (1) and the equipment box (2) are connected and communicated through an explosion-proof conduit (5).

2. The intelligent device for monitoring and alarming harmful gases in confined spaces of water supply and drainage structures according to claim 1, characterized in that: The main control board (4) integrates a CPU processor (41), a time-division multiplexer (42), a communication mechanism consisting of a Bluetooth module (43) and a 4G module (44), and a lithium-ion battery (45). The CH4 sensor (22), H2S sensor (23), CO sensor (24), and O2 sensor (25) are connected to the CPU processor (41) via the time-division multiplexer (42). The Bluetooth module (43) and the 4G module (44) and the touch screen (12) are connected to the CPU processor (41) via serial bidirectional data connection. The lithium-ion battery (45) supplies power to the CPU processor (41) and the CH4 sensor (22), H2S sensor (23), CO sensor (24), and O2 sensor (25).

3. The intelligent device for monitoring and alarming harmful gases in confined spaces of water supply and drainage structures according to claim 2, characterized in that: It also includes a relay module (46), through which the lithium-ion battery (45) is connected to the power input terminals of the CH4 sensor (22), H2S sensor (23), CO sensor (24), and O2 sensor (25) respectively.

Images