An explosion-proof tank heating device

Abstract

The utility model relates to the technical field of liquid transportation especially is related to a kind of explosion-proof tank heating device, it eliminates the possibility that electrical component in cabinet becomes ignition source from principle by positive pressure explosion-proof technology, and integrates pressure, temperature, state monitoring and fault diagnosis, realizes the automatic operation and pre-maintenance, reduces artificial operation intensity and failure risk;Including box structure;Still including protection mechanism, monitoring mechanism and heating mechanism, protection mechanism is installed on box structure and fills nitrogen into box structure, monitoring mechanism is installed on box structure and monitors system operation, heating mechanism is installed on box structure and heats the goods in tank.

Description

Technical Field

[0001] This utility model relates to the technical field of liquid transportation, and in particular to an explosion-proof tank heating device. Background Technology

[0002] Currently, electronic specialty gases are widely used in the semiconductor industry, playing an important role in material preparation, chemical vapor deposition (CVD) processes, and thin-film transistor fabrication. Electronic specialty gases are usually stored in low-temperature liquid form and transported in high-pressure tanks to save space.

[0003] Existing tank heating devices, such as the chemical storage tank heating device disclosed in utility model patent application number 202420603619.0, mainly include a chemical storage tank, a heating source, and a heat conduction pipe. A heating mechanism is provided at the lower end of the chemical storage tank, and the heating mechanism and the heating source are connected by a heat conduction pipe. An automatic valve is provided at the end of the heat conduction pipe near the heating source, and a first pressure sensor is provided at the end of the heat conduction pipe near the heating mechanism. In use, the first pressure sensor located at the front end of the heating mechanism can transmit the steam pressure entering the heating mechanism to the control center in real time, and control the opening and closing of the automatic valve through the control center to reduce the impact force of steam on the heating mechanism.

[0004] However, the electronic special gas unloading area is a potentially explosive hazardous environment. The heating device, as an electrical device and heat source, is itself a potential ignition source. Once a gas leak occurs, it can easily cause an explosion. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an explosion-proof tank heating device that eliminates the possibility of electrical components inside the cabinet becoming an ignition source by means of positive pressure explosion-proof technology, and integrates pressure, temperature, status monitoring and fault diagnosis to realize automated operation and pre-maintenance, thereby reducing the intensity of manual operation and the risk of failure.

[0006] This utility model discloses an explosion-proof tank container heating device, comprising a container structure; it also includes a protection mechanism, a monitoring mechanism, and a heating mechanism. The protection mechanism is installed on the container structure and fills the container structure with nitrogen gas. The monitoring mechanism is installed on the container structure and monitors the system operation. The heating mechanism is installed on the container structure and heats the goods inside the tank container. Nitrogen gas is delivered into the container structure through the protection mechanism as a protective gas. Then, the heating mechanism is activated to heat and rotate an ethylene glycol aqueous solution, which is used to heat the goods inside the tank container. The monitoring mechanism monitors the entire heating process to ensure the safe operation of the device.

[0007] Preferably, the enclosure structure includes an explosion-proof cabinet, a first cover plate, a second cover plate, and a cable rack. The explosion-proof cabinet is installed in the working position, and the interior of the explosion-proof cabinet is provided with a cavity. The first cover plate is rotatably connected to the explosion-proof cabinet through three sets of hinges. The second cover plate is installed on the explosion-proof cabinet, and the cable rack is installed on the explosion-proof cabinet. The explosion-proof cabinet, together with the first and second cover plates, forms a closed cavity to prevent nitrogen leakage. The cable rack is used to neatly arrange the wiring, and the incoming and outgoing lines use rubber-sheathed cables.

[0008] Preferably, the explosion-proof cabinet is made of 304 stainless steel; 304 stainless steel has strong corrosion resistance and can be used in humid and highly corrosive environments such as marine and chemical plants.

[0009] Preferably, the protection mechanism includes a gas source connection pipe, a positive pressure control system, an audible and visual alarm, and an exhaust valve. The gas source connection pipe is installed on the explosion-proof cabinet and communicates with the interior of the cabinet's cavity. The positive pressure control system is installed on the first cover plate, the audible and visual alarm is installed on the first cover plate, and the exhaust valve is installed on the explosion-proof cabinet. The gas source connection pipe is connected to a gas source, and nitrogen enters the cavity of the explosion-proof cabinet through the gas source connection pipe. When the positive pressure control system detects that the pressure inside the cavity is below 60 bar, above 1000 bar, or the internal temperature exceeds the limit, it immediately triggers the audible and visual alarm to remind personnel to come for maintenance. In cases of ultra-low pressure, the power supply is cut off, and in cases of ultra-high pressure, the exhaust valve is opened to release the gas and ensure safety.

[0010] Preferably, the positive pressure control system also integrates pressure and temperature sensors; the pressure and temperature sensors monitor the temperature and pressure inside the cavity, and the monitored values ​​are transmitted to the positive pressure control system for processing and display, so as to facilitate accurate judgment by the staff.

[0011] Preferably, the monitoring mechanism includes a quick-opening protective door, a gear switch, and a run reset button. The quick-opening protective door, the gear switch, and the run reset button are all installed on the first cover plate. After maintenance is completed, the gear switch is used to control the device to run again. The quick-opening protective door is electrically connected to the heating mechanism. Power is only allowed to the heating mechanism after the quick-opening protective door confirms that a safe positive pressure environment has been successfully established inside the explosion-proof cabinet, thus starting the heating cycle. For ease of operation and maintenance, the heating power of the heating mechanism can be adjusted via the gear switch.

[0012] Preferably, the quick-opening protective door also integrates a power indicator light, a pump indicator light, a heating indicator light, a pump fault light, a heating fault light, an ethylene glycol temperature controller, and a material temperature controller. The material temperature controller monitors the operation of the heating mechanism and controls the temperature of the goods inside the tank. The ethylene glycol temperature controller monitors and controls the temperature of the circulating medium, ethylene glycol aqueous solution. The system operating status is displayed by the power indicator light, pump indicator light, and heating indicator light, and the fault status is indicated by the pump fault light and the heating fault light.

[0013] Preferably, the heating mechanism includes an inlet pipe, a heater, a water pump, and a circulating water pipe. The inlet pipe is installed on the explosion-proof cabinet, the heater is installed inside the cavity of the explosion-proof cabinet and communicates with the inside of the inlet pipe, the water pump is installed inside the cavity of the explosion-proof cabinet and the inlet of the water pump is communicated with the outlet of the heater, and the circulating water pipe is installed inside the tank and communicates with the inside of the inlet pipe and the outlet of the water pump respectively. The circulating medium, ethylene glycol aqueous solution, enters the heater through the inlet pipe for heating, and the water pump delivers the heated circulating medium, ethylene glycol aqueous solution, to the circulating water pipe to heat the liquid in the tank. Then, the ethylene glycol aqueous solution in the circulating water pipe flows back to the heater through the inlet pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: nitrogen gas is delivered into the tank structure through the protection mechanism and used as a protective gas. Then, the heating mechanism is started to heat and rotate the ethylene glycol aqueous solution, which is used to heat the goods in the tank. The monitoring mechanism monitors the heating process throughout to ensure the safe operation of the device. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the present invention; Figure 2 This is a top view schematic diagram of the box structure of this utility model; Figure 3 This is a schematic diagram of the left-side structure of the protection mechanism of this utility model; Figure 4 This is a front view structural diagram of the protection mechanism and monitoring mechanism of this utility model; Figure 5 This is a front view structural diagram of the heating mechanism of this utility model; Figure 6 This is a right-side structural schematic diagram of the box structure and heating mechanism of this utility model.

[0016] The attached diagram is labeled as follows: 01, enclosure structure; 11, explosion-proof cabinet; 12, first cover plate; 13, second cover plate; 14, cable rack; 02, protection mechanism; 21, gas source connection pipe; 22, positive pressure control system; 23, audible and visual alarm; 24, exhaust valve; 03, monitoring mechanism; 31, quick-opening protective door; 32, gear switch; 33, operation reset button; 04, heating mechanism; 41, water inlet pipe; 42, heater; 43, water pump; 44, circulating water pipe. Detailed Implementation

[0017] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0018] Example 1 This utility model discloses an explosion-proof tank container heating device, comprising a container structure 01; it also includes a protection mechanism 02, a monitoring mechanism 03, and a heating mechanism 04. The protection mechanism 02 is installed on the container structure 01 and fills the container structure 01 with nitrogen gas. The monitoring mechanism 03 is installed on the container structure 01 and monitors the system operation. The heating mechanism 04 is installed on the container structure 01 and heats the goods inside the tank container. The container structure 01 includes an explosion-proof cabinet 11, a first cover plate 12, a second cover plate 13, and a cable rack 14. The explosion-proof cabinet 11 is installed in the working position and has an internal cavity. The first cover plate 12 is rotatably connected to the explosion-proof cabinet 11 via three sets of hinges. The second cover plate 13 is installed on the explosion-proof cabinet 11, and the cable rack 14 is installed on the explosion-proof cabinet 11. The explosion-proof cabinet 11 is made of stainless steel welded from the heating mechanism 04. The protection mechanism 02 includes... The system includes a gas source connection pipe 21, a positive pressure control system 22, an audible and visual alarm 23, and an exhaust valve 24. The gas source connection pipe 21 is installed on the explosion-proof cabinet 11 and communicates with the interior of the cavity of the explosion-proof cabinet 11. The positive pressure control system 22 is installed on the first cover plate 12, the audible and visual alarm 23 is installed on the first cover plate 12, and the exhaust valve 24 is installed on the explosion-proof cabinet 11. The system also includes a pressure sensor and a temperature sensor integrated within the positive pressure control system 22. The monitoring mechanism 03 includes a quick-opening protective door 31, a gear switch 32, and a run reset button 33. The quick-opening protective door 31 is installed on the first cover plate 12, the gear switch 32 is installed on the first cover plate 12, and the run reset button 33 is installed on the first cover plate 12. The quick-opening protective door 31 also integrates a power indicator light, a pump indicator light, a heating indicator light, a pump fault light, a heating fault light, an ethylene glycol temperature controller, and a material temperature controller.During operation, the explosion-proof cabinet 11, together with the first cover plate 12 and the second cover plate 13, forms a closed cavity to prevent nitrogen leakage. Cables are neatly routed through the cable tray 14, with rubber-sheathed cables used for both inlet and outlet. The gas source connection pipe 21 connects to the gas source, allowing nitrogen to enter the cavity of the explosion-proof cabinet 11. Pressure and temperature sensors monitor the temperature and pressure within the cavity and transmit the monitored values ​​to the positive pressure control system 22 for processing and display, facilitating accurate judgment by personnel. When the positive pressure control system 22 detects that the pressure inside the cavity is below 60 bar, above 1000 bar, or the internal temperature exceeds the limit, it immediately triggers the audible and visual alarm 23 to alert personnel for maintenance. Furthermore, it cuts off the power supply in cases of ultra-low pressure and opens the exhaust system in cases of ultra-high pressure. Valve 24 is used to release pressure to ensure safety. After maintenance, the operator operates the gear switch 32 to control the device to run again. The quick-opening protective door 31 is electrically connected to the heating mechanism 04. Power is only allowed to the heating mechanism 04 after the quick-opening protective door 31 confirms that a safe positive pressure environment has been successfully established inside the explosion-proof cabinet 11, thus starting the heating cycle. For ease of operation and maintenance, the heating power of the heating mechanism 04 is adjusted via the gear switch 32. The operation of the heating mechanism 04 is monitored and the temperature of the goods in the tank is controlled via a material temperature controller. The temperature of the circulating medium, ethylene glycol aqueous solution, is monitored and controlled via an ethylene glycol temperature controller. The system operating status is displayed by the power indicator, pump indicator, and heating indicator. The fault status is indicated by the pump fault light and the heating fault light.

[0019] Example 2 like Figures 1 to 6As shown, this utility model discloses an explosion-proof tank heating device based on Embodiment 1. The heating mechanism 04 includes an inlet pipe 41, a heater 42, a water pump 43, and a circulating water pipe 44. The inlet pipe 41 is installed on the explosion-proof cabinet 11. The heater 42 is installed inside the cavity of the explosion-proof cabinet 11 and communicates with the inside of the inlet pipe 41. The water pump 43 is installed inside the cavity of the explosion-proof cabinet 11, and the inlet of the water pump 43 communicates with the inside of the outlet of the heater 42. The circulating water pipe 44 is installed inside the tank and communicates with the inside of the inlet pipe 41 and the outlet of the water pump 43, respectively. During operation, firstly, the explosion-proof cabinet 11 is equipped with... The first cover plate 12 and the second cover plate 13 form a closed cavity to prevent nitrogen leakage. Cables are neatly routed through a cable tray 14, with rubber-sheathed cables used for both inlet and outlet. A gas source connection pipe 21 connects to a gas source, allowing nitrogen to enter the cavity of the explosion-proof cabinet 11. Pressure and temperature sensors monitor the temperature and pressure within the cavity and transmit the monitored values ​​to the positive pressure control system 22 for processing and display, facilitating accurate judgment by personnel. When the positive pressure control system 22 detects that the pressure inside the cavity is below 60 bar, above 1000 bar, or the internal temperature exceeds the limit, it immediately... This triggers the audible and visual alarm 23, alerting personnel to perform maintenance. It also cuts off power in cases of ultra-low pressure and opens the exhaust valve 24 to release pressure in cases of ultra-high pressure, ensuring safety. After maintenance is completed, the personnel operate the gear switch 32 to control the device to run again. The quick-opening protective door 31 is electrically connected to the heating mechanism 04. Power is only supplied to the heating mechanism 04 after the quick-opening protective door 31 confirms that a safe positive pressure environment has been successfully established inside the explosion-proof cabinet 11. The circulating medium, ethylene glycol aqueous solution, enters the heater 42 through the inlet pipe 41 for heating. The water pump 43 transports the heated circulating medium, ethylene glycol aqueous solution, to the circulating water pipe. Inside 44, the liquid in the tank is heated. Then, the ethylene glycol aqueous solution in the circulating water pipe 44 flows back to the heater 42 through the inlet pipe 41. For easy operation and maintenance, the heating power of the heating mechanism 04 is adjusted by the gear switch 32. The operation of the heating mechanism 04 is monitored by the material temperature controller, and the temperature of the goods in the tank is controlled. The temperature of the circulating medium ethylene glycol aqueous solution is monitored and controlled by the ethylene glycol temperature controller. The system operating status is displayed by the power indicator, pump indicator, and heating indicator. The fault status is indicated by the pump fault light and the heating fault light.

[0020] The heater 42 and water pump 43 of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0021] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An explosion-proof tank heating device, comprising a tank structure (01); characterized in that, It also includes a protection mechanism (02), a monitoring mechanism (03) and a heating mechanism (04). The protection mechanism (02) is installed on the container structure (01) and fills the container structure (01) with nitrogen. The monitoring mechanism (03) is installed on the container structure (01) and monitors the operation of the system. The heating mechanism (04) is installed on the container structure (01) and heats the goods inside the container.

2. The explosion-proof tank heating device as described in claim 1, characterized in that, The enclosure structure (01) includes an explosion-proof cabinet (11), a first cover plate (12), a second cover plate (13), and a cable rack (14). The explosion-proof cabinet (11) is installed in the working position. The explosion-proof cabinet (11) has a cavity inside. The first cover plate (12) is rotatably connected to the explosion-proof cabinet (11) through three sets of hinges. The second cover plate (13) is installed on the explosion-proof cabinet (11), and the cable rack (14) is installed on the explosion-proof cabinet (11).

3. The explosion-proof tank heating device as described in claim 2, characterized in that, It also includes explosion-proof cabinets (11) made of 304 stainless steel.

4. The explosion-proof tank heating device as described in claim 2, characterized in that, The protection mechanism (02) includes a gas source connection pipe (21), a positive pressure control system (22), an audible and visual alarm (23), and an exhaust valve (24). The gas source connection pipe (21) is installed on the explosion-proof cabinet (11) and communicates with the cavity inside the explosion-proof cabinet (11). The positive pressure control system (22) is installed on the first cover plate (12). The audible and visual alarm (23) is installed on the first cover plate (12). The exhaust valve (24) is installed on the explosion-proof cabinet (11).

5. The explosion-proof tank heating device as described in claim 4, characterized in that, It also includes a positive pressure control system (22) that integrates pressure and temperature sensors.

6. The explosion-proof tank heating device as described in claim 2, characterized in that, The monitoring mechanism (03) includes a quick-opening protective door (31), a gear switch (32) and a run reset button (33). The quick-opening protective door (31) is installed on the first cover plate (12), the gear switch (32) is installed on the first cover plate (12), and the run reset button (33) is installed on the first cover plate (12).

7. The explosion-proof tank heating device as described in claim 6, characterized in that, It also includes a power indicator light, a pump indicator light, a heating indicator light, a pump fault light, a heating fault light, an ethylene glycol temperature controller and a material temperature controller integrated on the quick-opening protective door (31).

8. The explosion-proof tank heating device as described in claim 2, characterized in that, The heating mechanism (04) includes an inlet pipe (41), a heater (42), a water pump (43), and a circulating water pipe (44). The inlet pipe (41) is installed on the explosion-proof cabinet (11). The heater (42) is installed in the cavity of the explosion-proof cabinet (11) and is connected to the inside of the inlet pipe (41). The water pump (43) is installed in the cavity of the explosion-proof cabinet (11) and the inlet of the water pump (43) is connected to the inside of the outlet of the heater (42). The circulating water pipe (44) is installed in the tank and is connected to the inside of the inlet pipe (41) and the outlet of the water pump (43) respectively.

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