Mining explosion-proof steam box drinking water and remote detection device based on microwaves

Abstract

The invention relates to a microwave-based mining explosion-proof steam box drinking water remote detection device, belongs to the technical field of industrial safety equipment, and mainly solves the problems of poor equipment safety, unstable microwave heating, insufficient dustproof and waterproof performance and untimely material supply in a mine environment. The device comprises a multi-layer box body shell (an inner layer titanium alloy plate, a middle layer 8-12 mm porous heat insulation and energy absorption cotton and an outer layer glass fiber reinforced plastic), an integrated steam box module, a drinking water module, a high-pressure nitrogen cylinder, a microwave generator and a temperature controller, and an air curtain protection system is linked with a door switch to form a dynamic air curtain for dust prevention. And remote monitoring is realized by combining safe interlocking controlled by a CPU, sensor signal processing by a data conditioning circuit and 4G data transmission, safe and efficient hot water and hot food supply is provided, and the explosion-proof performance and the operation reliability are improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of industrial safety equipment, in particular to a microwave-based mine explosion-proof steaming tank drinking water remote detection device. BACKGROUND

[0002] In the current mine operating environment, the working conditions are extremely complex and harsh, and the operating personnel usually need to engage in high-intensity physical labor for a long time. At the same time, due to the limited space underground, the wide distribution of operating areas and the long transportation path, workers face great difficulties in obtaining basic living support materials such as hot water and hot food. The traditional solution mainly includes carrying the required materials by the workers or distributing them to the underground operating point through the ground system, but such methods generally have low efficiency, untimely supply and other problems in actual application, which is difficult to effectively meet the dynamic needs of underground operation.

[0003] In addition, it is not realistic to directly apply conventional household appliances to the underground environment. The special working conditions of the mine put strict requirements on electrical equipment, especially in terms of explosion-proof performance, protection level and safety, which must meet relevant industry standards and specifications. Ordinary electrical equipment not only lacks the necessary safety protection measures, but also may become a potential risk source that causes safety accidents when encountering accidental collisions or thermal effects. In addition, existing microwave heating devices are difficult to apply due to the special environment of the mine. Traditional microwave heating devices require stable high-frequency current driving, but the voltage of the mine power grid fluctuates greatly (such as voltage drop caused by the start and stop of large equipment), and ordinary power supplies cannot continuously output the required high-frequency current, resulting in unstable operation of the magnetron or power attenuation, causing microwave output power fluctuations; ordinary drinking water equipment housings are made of non-metallic materials, or the metal shielding layer is not completely sealed, causing microwaves to easily overflow during transmission. Therefore, it is urgent to develop a hot water and hot food support system suitable for the special environment of the mine with high safety and practicality, and to real-time understand the surrounding temperature and humidity, dust and location information, in order to improve the working conditions and living quality of the underground operating personnel. SUMMARY

[0004] The purpose of the embodiment of the present application is to provide a microwave-based mine explosion-proof steaming tank drinking water remote detection device, which provides an integrated support system with explosion-proof, anti-interference, safe and reliable and stable supply of hot water and hot food to overcome the problems of poor safety of existing equipment, unstable microwave heating, insufficient dust and water resistance and untimely supply of materials.

[0005] To solve the above technical problems, the technical solution adopted by the present application is a microwave-based mine explosion-proof steaming tank drinking water remote detection device, comprising: The box shell is composed of an inner layer of titanium alloy plate, a middle layer of porous heat-insulating energy-absorbing cotton and an outer layer of glass steel, and the thickness of the porous heat-insulating energy-absorbing cotton is 8-12mm; The steam box module is arranged in the box shell and includes a steam box, a steam box door, and a steam drawer structure. The bottom of the steam box is provided with a storage compartment. The drinking water module is arranged in the box shell and includes a water storage tank, a hot water tank, a water outlet, and a drinking water machine door. The water storage tank is connected to the hot water tank through a water supply pipeline with a water pump. The hot water tank is connected to the water outlet through an independent hot water pipeline. The hot water tank is also provided with an air outlet. The high-pressure nitrogen cylinder is arranged in the box shell and is connected to the steam box door and the drinking water machine door through a gas pipeline. The heating module includes a microwave generator and a temperature controller. The microwave generator consists of a magnetron, a high-voltage capacitor, and a bidirectional diode to form a resonant circuit. The control system includes a CPU, a data acquisition module, and a data transmission module. The air curtain protection system includes an arc-shaped air curtain channel arranged at the diagonal position of the steam box door and the drinking water machine door. The air curtain channel is connected to the high-pressure nitrogen cylinder through an air inlet channel with an air valve switch and is provided with an air hole facing the outside of the door body. The air curtain switch is connected to the air valve switch. When the door body is closed, the air curtain switch is pressed to cut off the nitrogen supply. When the door body is opened, the nitrogen supply is restored to form an air curtain.

[0006] Further, the length direction of the air hole of the air curtain channel is consistent with the extension direction of the channel. When high-pressure nitrogen is injected, a dynamic gas barrier is formed in the opening area of the door body.

[0007] Further, the temperature controller includes: A DC power supply is connected in series with a thermal fuse and a temperature control switch. A solid-state relay is connected to the DC power supply and the microwave generator to drive the magnetron to work. The CPU controls the start and stop of the heating module through the relay group. The CPU drives the fan through the relay RY1 to synchronize the start and stop of the heating module.

[0008] Further, the CPU is connected to the data acquisition module through a data conditioning circuit. The data acquisition module includes a gas sensor, a dust concentration sensor, a temperature and humidity sensor, and a power failure sensor, and is connected to the GPS / Beidou positioning module data.

[0009] Further, the data conditioning circuit includes: A first-order RC filter network is composed of a resistor R1, a capacitor C1, and a grounding capacitor C2 to filter out high-frequency interference. An in-phase amplifier is composed of an operational amplifier. The feedback resistor R3 and the input resistor R4 set the gain, the parallel capacitor C3 suppresses power frequency interference, and the series capacitor C4 blocks direct current bias. Instrument amplifier AD620, gain resistor R6 sets two-stage gain, REF pin connects reference voltage to raise output level; Two-stage RC filter network, resistor R7 / R8 and capacitor C5 / C6 constitute a double-pole low-pass filter; Output end, resistor R9 and parallel capacitor C7 connect CPU's ADC pin.

[0010] Further, the +IN pin of AD620 is connected to the preamplification signal through resistor R10, the -IN pin is connected to the ground through resistor R11, and the power supply pins +VS / -VS are connected to +5V and GND respectively.

[0011] Further, the data transmission module encapsulates the serial port data output by the CPU into an IP datagram, and transmits it to a remote server through a cellular network, wherein the IP datagram includes a header and a data segment carrying sensor data and positioning information.

[0012] Further, the fan is fixed on the top of the steam box module and connected to the inner wall of the box shell through a mechanical support.

[0013] Further, the hot water tank gas outlet is provided with a pressure relief valve which automatically releases pressure when the pressure in the tank exceeds a threshold value.

[0014] Further, the relay group includes RY1 for controlling the fan, RY2 for controlling the ultraviolet lamp, RY3 for controlling the nitrogen valve, and RY4 as an expansion interface.

[0015] Compared with the prior art, the present application has the following advantages: by integrating triple explosion-proof protection, microwave self-adaptive heating, intelligent monitoring and nitrogen multi-scene application, the safety, stability and intelligence level of the hot water and hot food guarantee system in the mine environment are significantly improved; the composite box and air curtain dynamic dust prevention system are used to realize efficient heat management and dust blocking, and the intrinsic safety power supply and hardware-software interlocking mechanism are combined to ensure electrical intrinsic safety; PWM control and resonant circuit optimization are used to ensure stable and efficient operation of the microwave in the voltage fluctuation environment, and precise temperature control and forced convection are used to improve heating uniformity; high-precision sensor network and 4G remote transmission are used to realize real-time monitoring and rapid warning of environmental parameters; at the same time, nitrogen overpressure preservation, double-path water supply and modular design are used to reduce energy consumption and maintenance cost, prolong food preservation period, effectively solve the problems of difficult drinking and eating for underground workers, high safety risk of equipment, low heating efficiency and inconvenient operation and maintenance, and greatly improve the life support capacity and system operation reliability in extreme working conditions. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to make the technical solutions in the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only need to be some embodiments of the present application, and other drawings can be obtained by those of ordinary skill in the art without any creative effort.

[0017] Figure 1 is a schematic diagram of the overall structure of the microwave-based mine explosion-proof steaming tank drinking water integrated machine of the present embodiment; Figure 2 is a schematic diagram of the air curtain device structure of the steaming tank machine of the present embodiment; Figure 3 is a schematic diagram of the multi-layer tank body structure of the present embodiment; Figure 4 is a schematic diagram of the internal structure of the present embodiment; Figure 5 is a temperature controller circuit diagram of the present embodiment; Figure 6 is a control system module diagram of the present embodiment; Figure 7 is a data conditioning circuit diagram of the present embodiment; 1, steaming tank door; 2, steaming drawer; 3, temperature controller; 4, fan; 5, microwave generator; 6, air outlet; 7, tank body shell; 8, hot water tank; 9, high-pressure nitrogen cylinder; 10, drinking water machine door; 11, self-locking universal wheel; 12, water outlet; 13, water storage tank; 14, magnetic door handle; 15, storage grid; 16, air curtain switch; 17, air curtain passage; 18, air inlet passage; 19, air valve switch; 20, air hole; 21, titanium alloy plate; 22, porous heat-insulating energy-absorbing cotton; 23, glass steel. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without any creative effort belong to the scope of protection of the present application.

[0019] As Figures 1-4 , the present embodiment provides a microwave-based mine explosion-proof steaming tank drinking water heating device, which comprises a steaming tank module, a drinking water module, a control system, and a tank body shell 7.

[0020] In some specific embodiments, as Figure 3The box shell 7 is composed of a middle layer of porous heat-insulating energy-absorbing cotton 22 with a thickness of 8-12 mm, an outer layer of glass steel 23, and an inner layer of titanium alloy plate 21. The explosion-proof cavity can not only effectively inhibit the heat loss of the heating chamber to improve the heat energy utilization efficiency, but also significantly reduce the harm of explosion shock wave to the surrounding environment and adjacent equipment by effectively absorbing and dissipating the explosion energy in extreme working conditions (such as accidental explosion inside the box), thereby improving the overall safety performance of the system.

[0021] In some specific embodiments, the drinking water module and the steam box module are arranged in the box shell 7. The box shell 7 is also provided with a high-pressure nitrogen gas cylinder 9.

[0022] The drinking water module includes a water storage tank 13, a hot water tank 8, a water outlet 12, and a drinking water machine door 10. In some embodiments, the water storage tank 13 is arranged at the bottom of the drinking water module, and the hot water tank 8 is arranged at the upper part of the drinking water module for storing heated hot water. The hot water tank 8 is provided with an air outlet 6 to release the pressure inside the tank and prevent negative pressure. The air outlet 6 is provided with a pressure relief valve that automatically releases pressure when the pressure inside the tank exceeds a threshold value. The water storage tank 13 and the hot water tank 8 are connected by a water supply pipeline, and a water pump is arranged in the pipeline to transport the normal temperature water in the water storage tank 13 to the hot water tank 8 for heating. The hot water tank 8 is connected to the water outlet 12 by an independent hot water pipeline to provide heated drinking water. In addition, the water outlet 12 is also connected to the water storage tank 13 by another pipeline, and an independent water pump is arranged in the pipeline to realize direct supply of normal temperature water or for system circulation.

[0023] In some specific embodiments, the steam box module is composed of a steam box and a steam box door 1, wherein the steam box is provided with a steam drawer 2 structure, and the bottom is configured with a storage compartment 15 for storing food or other items. The steam box door 1 and the drinking water machine door 10 are connected to the high-pressure nitrogen gas cylinder 9, and the internal environment of each is regulated by filling with inert gas. The steam box module not only has the functions of food storage and heat preservation, but also can maintain a positive pressure state inside the box by continuously filling nitrogen, effectively preventing underground dust from entering the box, and preventing food pollution. In addition, as an inert gas, nitrogen can inhibit the oxidation reaction in food, delay the food spoilage process, and maintain the flavor and quality of food for a longer period of time, thereby ensuring the safety and nutrition of underground workers.

[0024] In some possible embodiments, as shown in FIG. 1, the box shell 7 is provided with a drinking water module and a steam box module. Figure 2As shown, the water dispenser door 10 and the steam box door 1 are diagonally provided with an arc-shaped air curtain passage 17, which is connected with the high-pressure nitrogen cylinder 9 through an air inlet passage 18, and the air inlet passage 18 is provided with an air valve switch 19 for controlling the on-off of the inert gas; the air curtain passage 17 is provided with an air hole 20 opening towards the inside of the device, the air outlet direction of the air hole 20 is towards the outside of the water dispenser door 10 and the steam box door 1, and the length direction of the air hole 20 is consistent with the extension direction of the air curtain passage 17. When the high-pressure inert gas in the high-pressure nitrogen cylinder 9 is sprayed through the air hole 20, a continuous air curtain is formed; during the opening of the water dispenser door 10 or the steam box door 1, the air curtain can build a dynamic air barrier in the door opening area, thereby effectively preventing the dust in the well from entering the water dispenser door 10 or the steam box door 1, and further improving the dust prevention ability and operation safety of the device in complex working conditions.

[0025] In some specific embodiments, the air curtain switch 16 is arranged at the included angle in the steam box door 1, and the air curtain switch 16 is electrically connected with the air valve switch 19; when the steam box door 1 is in a closed state, the door body presses the air curtain switch 16, controls the air valve switch 19 to cut off the communication between the high-pressure nitrogen cylinder 9 and the air curtain passage 17, and stops the supply of inert gas; when the steam box door 1 is opened, the air curtain switch 16 is automatically opened due to the release of mechanical pressure, the gas circulation is restored, and the air curtain function is started. The structure of this embodiment realizes the linkage control of the air curtain system, enables the air curtain protection only during the opening of the door body, ensures the dust prevention effect, reduces the invalid consumption of inert gas, and improves the system energy efficiency and operation reliability.

[0026] In some specific embodiments, the bottom of the box body is provided with a self-locking universal wheel 11; the steam box door 1 and the water dispenser door 10 are provided with a magnetic door handle 14.

[0027] In some possible embodiments, a heating module is arranged in the box body shell 7, including a microwave generator 5 and a temperature controller 3. The steam box water dispenser is characterized by low power supply voltage in the mine environment, and the temperature controller 3 enables the microwave oven to stably generate microwaves under low voltage conditions, and applies it to the rapid heating process of food and drinking water. This embodiment effectively improves the applicability and heating efficiency of the steam box module under specific working conditions, and meets the demand of the underground workers for instant supply of hot food and hot water.

[0028] In some specific embodiments, the temperature controller 3 circuit is as follows: Figure 5The DC power supply is connected in series with a temperature control switch and a thermal fuse to form a double fault protection, and when an overcurrent or overheating abnormality occurs in the circuit, the circuit breaker is automatically tripped to cut off the power supply (first layer protection). The DC power supply is distributed to two core loads through a contactor: the first load is connected to a microwave generating device through a solid-state relay to charge a high-voltage capacitor (HVC) and drive a magnetron to generate microwave energy, which is finally transmitted to a heating device to realize the functions of water boiling and steaming; the second load is connected to an electronic control panel after being stepped down by a transformer to ensure that the low-voltage control loop is compatible with the intrinsic safety requirement. In this embodiment, the intrinsic safety 12V DC power supply is selected, and any device capable of achieving the same function is within the scope of this embodiment.

[0029] The temperature controller 3 further comprises a CPU, which is a control center and is integrated into the electronic control panel. The CPU can be selected from an STM32F071 master control chip, and the whole device is coordinated to operate through the following preset program: Heating control: output instructions to the relay group (RY1-RY4) to start the heating device at different times.

[0030] Safety interlock: real-time monitoring of the door body state signal of the control switch (SW2 / SW3), automatic cut-off of microwave output when the box door is opened, and triggering of the nitrogen valve (controlled by RY3) to output nitrogen to seal the cavity; Abnormal alarm: sound and light alarm (indicator light and buzzer) is started when the water volume is insufficient, the temperature exceeds the limit, and the data collected by each sensor exceeds the threshold value through the input signals of the gas sensor, temperature and humidity sensor, dust concentration sensor, power failure sensor, and temperature control switch; Environmental supervision: providing working power for the gas sensor, temperature and humidity sensor, and dust concentration sensor, and receiving real-time feedback signals to generate supervision data through the built-in AD conversion module.

[0031] The temperature controller 3 further comprises a microwave generator 5, which comprises a magnetron, an HVC (high-voltage capacitor), and a bidirectional diode to form a resonant circuit, and the power control is realized by adjusting the on-off period of the solid-state relay through the CPU.

[0032] The temperature controller 3 further comprises a uniform heating unit, which drives the fan 4 to operate through the relay RY1 to make the heating uniform.

[0033] In some specific embodiments, the fan 4 is fixed to the top of the steaming box module and connected to the inner wall of the box shell 7 through a mechanical support. The start and stop of the fan 4 is linked with the heating device: when the heating device starts, the fan 4 starts synchronously; when the heating device stops working, the fan 4 closes synchronously.

[0034] In some specific embodiments, as shown in Figure 6The device of the embodiment further comprises a data acquisition module and a data transmission module. The data acquisition module comprises a gas sensor, a dust concentration sensor, a temperature and humidity sensor and a power-off sensor arranged on the explosion-proof steam cabinet drinking water device, and is respectively used for collecting environmental gas concentration, dust content, temperature and humidity parameters and device power supply state signals in real time, and transmitting the signals to a remote server through the data transmission module.

[0035] In some specific embodiments, the CPU is connected with each sensor in the data acquisition module through a data conditioning circuit, and is used for receiving multiple digital signals; at the same time, the CPU synchronously accesses longitude and latitude positioning data output by a GPS / Beidou positioning module. The CPU realizes integrated processing and communication protocol management of various data through a built-in communication control circuit, and then generates structured serial port data containing environmental parameters, device states and positioning information, so as to facilitate subsequent transmission and host computer analysis. It should be noted that the CPU and the temperature controller 3 adopt a common central processing unit (CPU), and realize data processing and temperature control functions through the same processor.

[0036] In some specific embodiments, the data transmission module is specifically a 4G data transmission module, receives structured serial port data output by a main control system, and performs data encapsulation processing; specifically, the serial port data is encapsulated into an IP datagram format according to network communication protocol requirements, the IP data packet comprises a message header and a data segment, wherein the message header contains target address information, and the data segment contains environmental parameters, device states and GPS / Beidou positioning information collected by the sensor; then, the module automatically identifies and selects a 4G network channel with the optimal signal, reliably transmits the encapsulated IP data packet to a remote server through a cellular mobile communication network, and realizes remote monitoring and cloud storage of data.

[0037] In some specific embodiments, the data conditioning circuit is configured as follows: the input end (IN) is used to receive the original analog signals output from the gas, dust and temperature and humidity sensors. The signals first enter a first-order RC filter network composed of resistor R1, capacitor C1 and ground capacitor C2, which sets the appropriate cutoff frequency to filter out high-frequency interference signals (such as electromagnetic noise generated by electrical equipment in the mine environment). The filtered signals are sent to operational amplifier U1A (corresponding to pins 3, 4, 5), configured as a non-inverting amplifier structure. Among them, the feedback resistor R3 and the input resistor R4 together set the circuit gain, realizing the preliminary amplification of weak signals. In the feedback path, a capacitor C3 is connected in parallel to form an active low-pass filter link to suppress power frequency and harmonic interference. A capacitor C4 is connected in series in the input path to block the DC bias voltage output by the sensor, realizing AC coupling input. The preamplified signal is impedance buffered by voltage follower U1B (corresponding to pins 6, 7) to improve the driving ability and isolate the influence of the subsequent load. The output end is connected to the subsequent cascade circuit through resistor R5. The core signal conditioning part uses high-precision instrumentation amplifier AD620 to realize two-stage amplification and differential processing. Among them, pin +IN (3 pin) connects the preamplification signal through resistor R10, -IN (2 pin) connects the analog ground (GND) as the reference level through resistor R11, forming a single-ended to differential input mode. The gain is set by the external gain resistor R6 connected between RG1 and RG2 pins (i.e. 1 pin and 8 pin). The reference voltage pin REF (5 pin) is connected to the reference voltage for lifting the DC level of the output signal, ensuring that the final output dynamic range adapts to the input range of the microcontroller ADC, avoiding signal clipping or precision loss. The amplified signal enters a two-stage RC filter network, which consists of resistor R7 and capacitor C5, and resistor R8 and capacitor C6 to form a double-pole passive low-pass filter, setting the appropriate cutoff frequency to suppress high-frequency switching noise and radio frequency interference introduced by the instrumentation amplifier or PCB wiring.

[0038] In some specific embodiments, as Figure 7 , the data conditioning circuit connects the positive power supply (+5V) to the positive power supply pin +VS (7 pin) of AD620 through a high-frequency decoupling capacitor C7; the negative power supply (-5V) is connected to the negative power supply pin -VS (4 pin) using a star ground topology to reduce the risk of digital circuit switching noise coupling to the analog front end through the ground. The final output is connected to the final output end (OUT) through resistor R9, and capacitor C7 is connected in parallel (marked position in the figure) to suppress high-frequency noise and optimize output stability. The output signal is reliably transmitted to the ADC sampling pin of the STM32F071 microcontroller (CPU) through a shielded cable, reducing the influence of external interference on sampling accuracy.

[0039] The various embodiments in the specification are described in a related manner, and the same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on the difference from other embodiments. In particular, for the system embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the part of the method embodiments.

[0040] The above only describes the preferred embodiments of the present application, and is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A microwave-based mine explosion-proof steam box drinking water remote detection device, characterized in that, It includes: Box shell (7) is composed of inner layer titanium alloy plate (21), middle layer porous heat insulation energy absorbing cotton (22) and outer layer glass steel (23), the thickness of the porous heat insulation energy absorbing cotton (22) is 8-12mm; Steam box module is arranged in the box shell (7), including steam box body, steam box door (1) and steam drawer (2) structure, the steam box body bottom is configured with storage grid (15); Water drinking module is arranged in the box shell (7), including water storage tank (13), hot water tank (8), water outlet (12) and water dispenser door (10), the water storage tank (13) is connected with the hot water tank (8) through the water supply pipeline with water pump, the hot water tank (8) is connected with the water outlet (12) through the independent hot water pipeline, and the hot water tank (8) is provided with air outlet (6); High-pressure nitrogen cylinder (9) is arranged in the box shell (7), and is connected with the steam box door (1) and the water dispenser door (10) through the gas path respectively; Heating module includes microwave generator (5) and temperature controller (3), the microwave generator (5) is composed of magnetron, high-voltage capacitor and bidirectional diode to form a resonant circuit; The control system includes CPU, data acquisition module and data transmission module; Air curtain protection system includes arc-shaped air curtain channel (17) arranged at the diagonal position of the steam box door (1) and the water dispenser door (10), the air curtain channel (17) is connected with the high-pressure nitrogen cylinder (9) through the air inlet channel (18) with the air valve switch (19), and is provided with the air hole (20) facing the outside of the door body; Wherein, the air curtain switch (16) is arranged at the inner angle of the steam box door (1) and is linked with the air valve switch (19), the nitrogen supply is cut off when the door body is closed to press the air curtain switch (16), and the nitrogen supply is restored to form the air curtain when the door body is opened.

2. The microwave-based mine explosion-proof steaming tank drinking water remote detection device according to claim 1, characterized in that, The length direction of the air hole (20) of the air curtain channel (17) is consistent with the extension direction of the channel, and a dynamic gas barrier is formed in the door opening area when the high-pressure nitrogen is sprayed.

3. The microwave-based mine explosion-proof steaming tank drinking water remote detection device according to claim 1, characterized in that, The temperature controller (3) includes: DC power supply, series thermal fuse and temperature control switch; Solid state relay, connecting DC power supply and microwave generator (5), driving magnetron to work; CPU, through the relay group control heating module start-stop; The soaking unit is driven by the fan (4) through the relay RY1 of CPU, and the heating module is started and stopped synchronously.

4. The microwave-based mine explosion-proof steaming tank drinking water remote detection device according to claim 3, characterized in that, The CPU is connected with the data acquisition module through the data conditioning circuit, the data acquisition module includes gas sensor, dust concentration sensor, temperature and humidity sensor and power-off sensor, and is connected with GPS / Beidou positioning module data.

5. The microwave-based mine explosion-proof steaming tank drinking water remote detection device according to claim 4, characterized in that, The data conditioning circuit includes: First-order RC filter network, composed of resistor R1, capacitor C1 and grounding capacitor C2, to filter out high-frequency interference; The same phase amplifier is composed of operational amplifier, feedback resistor R3 and input resistor R4 are set gain, and parallel capacitor C3 suppresses power frequency interference, and series capacitor C4 blocks direct current bias; Instrument amplifier AD620, gain resistor R6 sets two-stage gain, REF pin connects reference voltage to lift output level; Second-order RC filter network, composed of resistor R7 / R8 and capacitor C5 / C6, forms a double-pole low-pass filter. The output end is connected with the ADC pin of the CPU through the resistance R9 and the parallel capacitor C7.

6. The microwave-based mine explosion-proof steaming tank drinking water remote detection device according to claim 5, characterized in that, The +IN pin of the AD620 is connected with the pre-amplification signal through the resistance R10, the -IN pin is connected with the ground through the resistance R11, and the power supply pins +VS / -VS are connected with +5V and GND respectively.

7. The microwave-based mine explosion-proof steaming tank drinking water remote detection device according to claim 1, characterized in that, The data transmission module encapsulates the serial port data output by the CPU into an IP datagram, and transmits the IP datagram to a remote server through a cellular network, wherein the IP datagram comprises a header and a data segment carrying sensor data and positioning information.

8. The microwave-based mine explosion-proof steaming tank drinking water remote detection device according to claim 1, characterized in that, The fan (4) is fixed on the top of the steaming box module and connected with the inner wall of the box shell (7) through a mechanical support.

9. The microwave-based mine explosion-proof steaming tank drinking water remote detection device according to claim 1, characterized in that, The air outlet (6) of the hot water tank (8) is provided with a pressure relief valve which automatically releases pressure when the pressure in the tank exceeds a threshold value.

10. The microwave-based mine explosion-proof steaming tank drinking water remote detection device according to claim 3, characterized in that, The relay group comprises: RY1 controls the fan (4), RY2 controls the ultraviolet lamp, RY3 controls the nitrogen valve, and RY4 is an expansion interface.

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