A diesel tank with liquid level remote transmission, explosion-proof fire resistance and diesel heating function
By introducing a magnetic level gauge, an explosion-proof flame arrestor breather valve, and a fuel heater into the diesel tank, the functional defects of traditional diesel tanks are solved, enabling remote level transmission, explosion-proof flame arrestor, and heating functions, thus ensuring reliable fuel supply and safe operation of the fire pump.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEFEI KAIQUAN MOTOR ELECTRIC PUMP CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-06-16
AI Technical Summary
Traditional diesel tanks lack remote level transmission, explosion-proof and flame-retardant functions, and heating functions, which cannot meet the safe and reliable fuel supply requirements of fire pumps.
Design a diesel tank with remote liquid level transmission, explosion-proof flame arrestor, and diesel heating functions. It is equipped with a magnetic level gauge, explosion-proof flame arrestor breather valve, fuel heater, and low liquid level alarm switch. The liquid level is remotely monitored, and the explosion-proof and heating functions are controlled through a central control room system.
It enables remote monitoring of diesel tank level, explosion-proof flame arrestor, and fuel heating, ensuring normal operation of diesel engines in low-temperature environments, reducing the risk of fire and explosion, and improving the reliability and safety of fuel supply.
Smart Images

Figure CN224364036U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of fire pump products, and in particular to a diesel tank with remote liquid level transmission, explosion-proof flame arrestor, and diesel heating functions. Background Technology
[0002] The diesel fuel tank of a fire pump is an important component of a diesel engine fire pump. The fuel tank capacity of a diesel engine fire pump should be determined based on the duration of the fire, and the minimum effective volume of the tank should be configured at 1.5 L / kW. The fuel stored in the diesel engine fire pump tank should not be less than 50% of its capacity. Furthermore, according to the "Design Code for Petrochemical Fire Pump Stations" SH / T 3219-2022, the fuel tank capacity of a diesel engine fire pump set should not exceed 3 m³, and its layout is unrestricted; if it exceeds 3 m³, the aforementioned specifications for factory fuel supply stations or building oil storage rooms must be followed.
[0003] The low fuel level in the diesel engine fuel tank should not be lower than the height of the fuel inlet of the diesel engine fuel transfer pump, and the high fuel level in the fuel tank should not be higher than the maximum height of the diesel engine crankshaft centerline when the fuel transfer pump is stationary. Measures to prevent diesel fuel leakage should be considered near the diesel engine fuel tank, and the effective volume of the diesel fuel leakage collection facility should not be less than the volume of the diesel engine fuel tank.
[0004] The national standard for fire pumps specifies some functions for fuel tanks, including liquid level display requirements, capacity requirements, and installation requirements. Traditional fuel tanks display liquid level through glass tube level gauges, do not have heating functions, and the vent of the fuel tank is directly open to air, without explosion-proof and flame-retardant functions. Utility Model Content
[0005] The purpose of this utility model is to overcome the deficiencies of existing technologies and provide a diesel tank with functions such as remote liquid level transmission, explosion-proof flame arrestor, and diesel heating.
[0006] This utility model is achieved through the following technical solution:
[0007] A diesel tank with remote liquid level transmission, explosion-proof flame arrestor, and diesel heating functions includes a tank body, an oil filler port and an oil return port at the top of the tank body, an oil supply port and a drain port at the bottom of the tank body, an explosion-proof flame arrestor breather valve installed at the top of the tank body, a fuel heater and a low liquid level alarm switch installed inside the tank body, and a magnetic float level gauge installed at one end of the tank body.
[0008] The fuel tank body is made of Q235 material.
[0009] A lifting lug is provided at the top center of the fuel tank body.
[0010] A fuel tank bracket is installed at the lower end of the fuel tank body.
[0011] The output end of the magnetic level gauge is connected to the central control room control system.
[0012] The central control room control system is also connected to a low liquid level alarm switch and a fuel heater.
[0013] This invention allows for direct on-site observation and remote transmission of liquid level signals to the central control room.
[0014] This utility model has a heating function: it is equipped with a diesel heating function to cope with low-temperature environments;
[0015] This utility model has explosion-proof and flame-arresting functions: it is equipped with an explosion-proof and flame-arresting breather valve to ensure safety.
[0016] The advantages of this invention are: the fuel tank volume is designed according to the power of the matching diesel engine; the fuel tank is equipped with a filler port, a fuel supply port, a return port, and a drain valve; the diesel fuel level can be directly observed on-site via a magnetic level gauge, or it can be connected to the central control room for display via a 4-20mA signal sent by the magnetic level gauge; the equipped low-level alarm switch can send an alarm signal when the level is below the set level; the equipped fuel heater can heat the fuel when the ambient temperature is below 5°C under the control of the temperature controller inside the diesel engine control cabinet; the equipped explosion-proof flame arrestor can prevent the risk of fuel fire in the fuel tank. This invention can ensure a reliable fuel supply for the diesel engine fire pump during firefighting operations, thereby ensuring the safety of life and property. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a front view of the present invention. Detailed Implementation Example 1:
[0019] like Figure 1 , 2 As shown, a diesel tank with remote liquid level transmission, explosion-proof flame arrestor, and diesel heating functions includes a tank body 1. The upper part of the tank body 1 is provided with a filler port 2 and a return port 3. The lower part of the tank body 1 is provided with a fuel supply port 4 and a drain port 5. An explosion-proof flame arrestor breather valve 6 is also installed at the top of the tank body 1. A fuel heater 7 and a low liquid level alarm switch 8 are installed inside the tank body 1. A magnetic float level gauge 9 is installed at one end of the tank body 1.
[0020] A magnetic level gauge 9 is installed on the side of the oil tank body 1. Using the principle of float, the magnetic level gauge is rotated according to the change of oil level, so as to intuitively display the liquid level in the oil tank.
[0021] The output of the magnetic level gauge 9 is connected to the central control room control system, converting the level signal into an electrical signal and transmitting it to the central control room. The central control room control system receives the level data in real time, enabling remote monitoring of the fuel tank level. When the level falls below the set low level alarm value, the low level alarm switch 8 is triggered, and the central control room control system receives the alarm signal and issues an alarm, reminding the operator to replenish fuel in time.
[0022] An explosion-proof flame arrestor breather valve 6 is installed at the top of the fuel tank body 1. When the pressure difference between the inside and outside of the fuel tank is large, the breather valve will automatically open to balance the pressure inside and outside the fuel tank and prevent the fuel tank from deforming or being damaged due to excessive pressure.
[0023] The explosion-proof flame arrestor breather valve 6 is equipped with a flame arrestor element, which can prevent external flames from entering the fuel tank 1 through the breather valve, and at the same time prevent the fuel vapor inside the fuel tank 1 from forming an explosive mixture with the outside air, thereby ensuring the safe operation of the fuel tank 1.
[0024] A fuel heater 7 is installed inside the fuel tank body 1, which heats the fuel through an electric heating element. The start and stop of the fuel heater 7 are controlled by the central control room control system.
[0025] When the fuel temperature is lower than the set value, the central control room control system activates the fuel heater 7 to heat the fuel, ensuring that the fuel can maintain good fluidity in low-temperature environments, which facilitates the starting and operation of the diesel engine.
[0026] The heating power and working time of the fuel heater 7 can be adjusted according to actual needs to adapt to different ambient temperatures and fuel requirements.
[0027] The fuel tank body 1 is made of Q235 material.
[0028] The output end of the magnetic level gauge 9 is connected to the central control room control system.
[0029] The central control room control system is also connected to the low liquid level alarm switch 8 and the fuel heater 7.
[0030] Example 2:
[0031] like Figure 1 , 2As shown, a diesel tank with remote level transmission, explosion-proof flame arrestor, and diesel heating functions includes a tank body 1. A filler port 2 and a return port 3 are located at the top of the tank body 1, and a fuel inlet 4 and a drain port 5 are located at the bottom. An explosion-proof flame arrestor breather valve 6 is installed at the top of the tank body 1. A fuel heater 7 and a low-level alarm switch 8 are installed inside the tank body 1. A magnetic level gauge 9 is installed at one end of the tank body 1. A lifting lug 10 is located at the top center of the tank body 1 to facilitate lifting and transporting the tank, improving the efficiency of equipment installation and maintenance.
[0032] A magnetic level gauge 9 is installed on the side of the fuel tank 1. Utilizing a float principle, the magnetic level gauge rotates according to changes in the fuel level, thus visually displaying the fuel level in the tank. The output of the magnetic level gauge 9 is connected to the central control room control system, converting the fuel level signal into an electrical signal and transmitting it to the central control room. The central control room control system receives the fuel level data in real time, enabling remote monitoring of the fuel tank level. When the fuel level falls below the set low-level alarm value, the low-level alarm switch 8 is triggered, and the central control room control system receives the alarm signal and issues an alarm, reminding the operator to refuel in a timely manner.
[0033] Example 3:
[0034] like Figure 1 , 2 As shown, a diesel tank with remote level transmission, explosion-proof flame arrestor, and diesel heating functions includes a tank body 1. A filler port 2 and a return port 3 are located at the upper part of the tank body 1, and a fuel inlet 4 and a drain port 5 are located at the lower part. An explosion-proof flame arrestor breather valve 6 is also installed at the top of the tank body 1. A fuel heater 7 and a low-level alarm switch 8 are installed inside the tank body 1. A magnetic level gauge 9 is installed at one end of the tank body 1. A tank bracket 11 is installed at the lower end of the tank body 1 to increase the stability of the tank installation.
[0035] Features of this utility model:
[0036] Explosion-proof flame arrestor design: The explosion-proof flame arrestor breather valve 6 can effectively prevent external flames from entering the fuel tank, and at the same time prevent the fuel vapor in the fuel tank from forming an explosive mixture with the outside air, greatly reducing the risk of fire and explosion.
[0037] Low fuel level alarm: The low fuel level alarm switch 8 is connected to the central control room control system, which can promptly remind operators to replenish fuel and prevent the diesel engine from stopping due to insufficient fuel, thus affecting the normal operation of the fire pump.
[0038] Remote liquid level transmission function: The magnetic float level gauge 9 is connected to the central control room control system to realize real-time remote monitoring of the liquid level. Operators can understand the liquid level in the tank without going to the site, which improves the convenience and efficiency of operation.
[0039] Centralized Control: The central control room system can centrally control the fuel heater 7 and the low-level alarm switch 8, achieving intelligent management of the fuel tank, reducing manual intervention, and lowering the risk of operational errors. The fuel heater is a device used to raise the temperature of fuel, ensuring that the fuel maintains good fluidity in low-temperature environments, thereby facilitating engine starting and operation.
[0040] Diesel heating function: The fuel heater 7 can ensure that the fuel maintains good fluidity in low-temperature environments, so that the diesel engine can still start and run normally in cold regions or low-temperature environments, improving the environmental adaptability of the equipment.
[0041] Stable Structure: The fuel tank body 1 is made of Q235 material, a commonly used carbon structural steel with high strength and toughness, capable of withstanding certain pressure and impact, ensuring the structural stability of the fuel tank. Meanwhile, a fuel tank bracket 11 is installed at the lower end of the fuel tank, further enhancing its support capacity and allowing it to be stably installed in the designated position.
[0042] Filler neck 2 and return neck 3: The upper part of the fuel tank is equipped with filler neck 2 for easy refueling; return neck 3 is used to recover excess fuel, avoid fuel waste, and keep the fuel in the fuel tank clean.
[0043] Drain 5: A drain 5 is provided at the bottom of the fuel tank to facilitate the regular discharge of sediment and impurities in the fuel tank, extend the service life of the fuel tank, and reduce the risk of failure caused by impurities clogging the tank.
Claims
1. A diesel tank with remote liquid level transmission, explosion-proof flame arrestor, and diesel heating functions, characterized in that: It includes a fuel tank body, with a fuel filler port and a fuel return port at the top of the fuel tank body, a fuel supply port and a drain port at the bottom of the fuel tank body, an explosion-proof flame arrestor breather valve installed at the top of the fuel tank body, a fuel heater and a low liquid level alarm switch installed inside the fuel tank body, and a magnetic float level gauge installed at one end of the fuel tank body.
2. A diesel tank with remote liquid level transmission, explosion-proof flame arrestor, and diesel heating functions as described in claim 1, characterized in that: The fuel tank body is made of Q235 material.
3. A diesel tank with remote liquid level transmission, explosion-proof flame arrestor, and diesel heating functions as described in claim 1, characterized in that: A lifting lug is provided at the top center of the fuel tank body.
4. A diesel tank with remote liquid level transmission, explosion-proof flame arrestor, and diesel heating functions as described in claim 1, characterized in that: A fuel tank bracket is installed at the lower end of the fuel tank body.
5. A diesel tank with remote liquid level transmission, explosion-proof flame arrestor, and diesel heating functions as described in claim 1, characterized in that: The output end of the magnetic level gauge is connected to the central control room control system.
6. A diesel tank with remote liquid level transmission, explosion-proof flame arrestor, and diesel heating functions as described in claim 5, characterized in that: The central control room control system is also connected to a low liquid level alarm switch and a fuel heater.