Enclosed dual chamber hot air snow plow tank

Abstract

This utility model discloses a closed dual-chamber hot-blowing snowplow fuel tank, belonging to the technical field of snowplow fuel tanks. It includes a closed dual-chamber fuel tank mounted on the vehicle body. A closed partition is vertically fixed to the center of the tank's interior, dividing it into chamber A and chamber B. Each chamber has a vertically fixed anti-surge partition. The top wall of each chamber has two balance pipe holes, both connected to a pressure balance pipe assembly. The bottom wall of each chamber has two pumping pipe holes, both connected to an intelligent pumping assembly. This utility model allows for the simultaneous storage of two types of fuel through the closed dual-chamber fuel tank, reducing costs. The pressure balance pipe assembly balances the pressure, supporting continuous fuel supply. The intelligent pumping assembly controls the fuel supply lines, enabling rapid switching between fuel lines.

Description

Technical Field

[0001] This utility model relates to the field of snowplow fuel tank technology, and in particular to a closed dual-chamber hot-blowing snowplow fuel tank. Background Technology

[0002] Thermal jet snowplows are crucial equipment for ensuring traffic safety in winter, using turbojet engines to spray high-temperature jets for snow and ice removal. These vehicles can be powered by diesel fuel, stored in large-capacity tanks, and supplied to the turbojet engine via suitable fuel lines. However, their operating environment is characterized by low temperatures, numerous inclines, and high vibrations, leading to problems such as high fuel costs, the risk of cavitation when the vehicle is tilted, and poor stability of the fuel pumping system. Therefore, the importance of designing a new type of fuel tank and intelligent fuel pumping system is increasingly evident.

[0003] Hot-pump snowplows place high demands on the impact resistance of the fuel tank structure, the continuity of fuel supply, and the stability of the pumping operation. Traditional fuel supply systems have revealed significant problems. Regarding fuel tank strength, traditional fuel tanks use straight-plate welding with simple internal anti-surge structures, which are prone to weld tearing or anti-surge deformation under prolonged oil impact and vehicle vibration. In terms of fuel economy, low-pour-point -35 diesel is expensive, while low-cost -10 diesel, due to its high pour point, is unsuitable for high-altitude and cold regions. Fuel tank changes are cumbersome, therefore single-chamber fuel tanks cannot meet the high-efficiency and energy-saving requirements of hot-pump snowplows. Existing dual-chamber fuel tanks typically include main and auxiliary tanks for backup fuel supply in emergencies, but this does not fundamentally solve the fuel change problem for hot-pump snowplows operating in various scenarios. To address the fuel change issue, some designs use two independent fuel tanks and two independent pumping systems, which are costly, structurally complex, and inconvenient to maintain.

[0004] Therefore, there is an urgent need to design a dual-chamber fuel tank equipped with an intelligent pumping system to balance low cost and high reliability. This tank can utilize inexpensive -10 diesel to reduce daily operating costs, and can intelligently switch to -35 diesel in extremely cold environments to ensure reliable backup. Utility Model Content

[0005] The purpose of this invention is to provide a closed dual-chamber hot-blowing snowplow fuel tank. The closed dual-chamber fuel tank can store two types of fuel at the same time, which reduces costs. The pressure balance pipeline assembly is set to balance the pressure and support the continuous fuel supply. The intelligent pumping assembly controls the fuel supply pipeline and enables rapid switching of the fuel circuit.

[0006] To achieve the above objectives, this utility model provides a closed dual-chamber hot-blowing snowplow oil tank, including a closed dual-chamber oil tank installed on the vehicle body, a pressure balance pipeline assembly connected to the top of the closed dual-chamber oil tank, and an intelligent pumping assembly connected to the bottom of the closed dual-chamber oil tank. A closed partition is vertically fixed to the center of the interior of the closed dual-chamber oil tank, dividing the oil tank into chamber A and chamber B. A wave-proof partition is vertically fixed to the interior of each chamber. A balance pipe hole is opened on the top wall of each chamber, and both balance pipe holes are connected to the pressure balance pipe assembly. A pump oil pipe hole is opened on the bottom wall of each chamber, and both pump oil pipe holes are connected to the intelligent pumping assembly. The front and rear plates of the closed dual-chamber oil tank are both designed as bent plate structures. The pressure balancing pipeline assembly includes a balancing pipeline, a vent valve, a drain valve, a collection tank, and a splash guard. The two ends of the balancing pipeline are respectively equipped with splash guards and connected to two balancing pipeline holes. The top of the middle section of the balancing pipeline is connected to a vent valve, and the bottom of the middle section of the balancing pipeline is connected to a collection tank. An oil level sensor is installed on the collection tank, and the bottom wall of the collection tank is connected to a drain valve.

[0007] Preferably, the intelligent pumping assembly includes a three-way connector, a pump motor, a suction pump, an oil delivery hose, and an oil circuit support base. The inlet pipes at both ends of the three-way connector are respectively connected to two pump pipeline holes. The output port of the three-way connector is divided into two branches. One branch is connected to the main solenoid valve, and the other branch is connected to the pump motor and the suction pump. The output ends of the two branches converge and are connected to the oil delivery hose. The bottom of the two branches are connected to the oil circuit support base.

[0008] Preferably, an A-cavity control valve is provided on the pipe connecting the tee joint to the A-cavity, and the A-cavity control valve is located between the inlet pipe of the tee joint and the converging output end; a B-cavity control valve is provided on the pipe connecting the tee joint to the B-cavity, and the B-cavity control valve is located between the inlet pipe of another tee joint and the converging output end.

[0009] Preferably, filters are installed on both inlet pipes of the tee joint.

[0010] Preferably, a pressure sensor is installed on the oil delivery hose.

[0011] Preferably, the top of the closed dual-chamber oil tank is provided with an inspection hole cover; the top of the closed dual-chamber oil tank is also provided with two oil filling ports, which are respectively connected to chamber A and chamber B; the bottom of the closed dual-chamber oil tank is also provided with two oil drain ports, which are respectively connected to chamber A and chamber B.

[0012] Preferably, the bottom of the left and right side plates of the closed dual-chamber oil tank is provided with an angle sensor and a temperature sensor. The left and right side plates of the closed dual-chamber oil tank are also provided with oil flow pipes, and the two oil flow pipes are respectively connected to the interior of chamber A and chamber B.

[0013] Preferably, filter screens are connected to the bottom plates of chamber A and chamber B, and the two filter screens are respectively connected to the two pump oil pipeline holes.

[0014] Preferably, the bottom of the enclosed dual-chamber oil tank is provided with an oil tank support base.

[0015] The advantages and positive effects of the closed dual-chamber hot-blowing snowplow fuel tank described in this utility model are: (1) By setting up two independent chambers, A and B, this utility model can store diesel fuel of different grades (such as -10 and -35) respectively. Low-cost fuel can be used in normal low-temperature environments, and high-grade fuel can be switched in extreme cold, which significantly reduces operating costs and ensures the reliability of fuel supply.

[0016] (2) The present invention adopts a pressure balance pipeline assembly to effectively control the pressure difference between the two chambers and between the chamber and the atmosphere, prevent the partition from deforming, and the bending plate and anti-surge partition structure enhance the impact resistance of the oil tank and extend its service life.

[0017] (3) This utility model integrates a temperature sensor and an tilt sensor, and combines them with a controller to realize an intelligent fuel supply strategy based on ambient temperature and vehicle attitude, automatically switch fuel supply chambers, avoid the risk of air suction, and ensure fuel supply continuity.

[0018] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a closed dual-chamber hot-blowing snowplow fuel tank according to the present invention; Figure 2 This is a schematic diagram of the closed dual-chamber oil tank of this utility model after the pressure balance pipeline assembly is hidden; Figure 3 This is a structural schematic diagram of the closed dual-chamber oil tank of this utility model from another perspective; Figure 4 This is a schematic diagram of the internal structure of the closed double-chamber oil tank of this utility model; Figure 5 This is a schematic diagram of the pressure balance pipeline assembly of this utility model; Figure 6 This is a schematic diagram of the intelligent pumping component structure of this utility model; Figure 7 This is a schematic diagram of the closed dual-chamber fuel tank of this utility model connected to the vehicle body; Figure 8 This is a flowchart illustrating the principle of the intelligent pumping system of this utility model.

[0020] Figure Labels 1. Enclosed dual-chamber oil tank; 2. Balance pipe hole; 3. Oil inlet; 4. Tilt sensor; 5. Temperature sensor; 6. Oil level pipe; 7. Bending plate; 8. Oil drain port; 9. Oil tank support; 10. Pump oil pipe hole; 11. Enclosed partition; 12. Anti-surge partition; 13. Filter screen; 14. Oil level sensor; 15. Vent valve; 16. Balance pipe; 17. Drain valve; 18. Collection tank; 19. Splash shield; 20. T-connector; 21. Filter; 22. A-chamber control valve; 23. Pump motor; 24. Oil pump; 25. Pressure sensor; 26. Oil delivery hose; 27. Oil circuit support; 28. Main solenoid valve; 29. ​​B-chamber control valve; 30. Inspection hole cover. Detailed Implementation

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. 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. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] In this application, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. In case of any inconsistency, the meaning set forth in this specification or derived from the content described herein shall prevail. Furthermore, the terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit the scope of this application.

[0023] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0024] like Figures 1-8 As shown, a closed dual-chamber hot air snowplow oil tank includes a closed dual-chamber oil tank 1 installed on the vehicle body. A pressure balance pipeline assembly is connected to the top of the closed dual-chamber oil tank 1, and an intelligent pumping assembly is connected to the bottom of the closed dual-chamber oil tank 1.

[0025] A closed dual-chamber oil tank 1 has a vertically fixed closed partition 11 in the middle of its interior, dividing it into chamber A and chamber B. Each chamber has a vertically fixed anti-surge partition 12. The top wall of each chamber has a balance pipe hole 2, both of which are connected to a pressure balance pipe assembly. The bottom wall of each chamber has a pumping pipe hole 10, both of which are connected to an intelligent pumping assembly. The front and rear plates of the closed dual-chamber oil tank 1 are both designed as bent plate structures 7.

[0026] Specifically, the closed dual-chamber fuel tank 1 is designed with chamber A and chamber B, which allows the vehicle to use inexpensive -10 diesel fuel in normal low temperatures and -35 diesel fuel in extremely cold environments, significantly reducing operating costs.

[0027] Specifically, when the oil in each chamber sloshes due to the vehicle passing over a slope or accelerating and stopping suddenly, the bending plate 7 and the anti-surge baffle 12 can effectively resist the impact of the oil sloshing, which helps to maintain the service life of the oil tank.

[0028] The pressure balancing pipeline assembly includes a balancing pipeline 16, a vent valve 15, a drain valve 17, a collection tank 18, and a splash guard 19. The two ends of the balancing pipeline 16 are respectively equipped with splash guards 19 and connected to two balancing pipeline holes 2. The top of the middle section of the balancing pipeline 16 is connected to the vent valve 15, and the bottom of the middle section of the balancing pipeline 16 is connected to the collection tank 18. An oil level sensor 14 is installed on the collection tank 18, and the bottom wall of the collection tank 18 is connected to the drain valve 17.

[0029] Specifically, the top walls of chambers A and B are equipped with pressure balancing pipeline assemblies to control the pressure difference between the chambers and between the atmosphere and the chambers, preventing the sealing partition 11 from collapsing or abnormal fuel transfer. A pumping system and intelligent valve group are used to control the oil circuits of the two chambers, ensuring that the vehicle can continuously and stably supply fuel in any working posture and under different operating conditions.

[0030] Specifically, the vent valve 15, the discharge valve 17, and the oil level sensor 14 are all electrically connected to the controller.

[0031] The intelligent pumping assembly includes a three-way connector 20, a pump motor 23, a suction pump 24, an oil delivery hose 26, and an oil circuit support 27. The inlet pipes at both ends of the three-way connector 20 are connected to two pump pipeline holes 10, respectively. The output port of the three-way connector 20 is divided into two branches. One branch is connected to the main solenoid valve 28, and the other branch is connected to the pump motor 23 and the suction pump 24. The output ends of the two branches converge and are connected to the oil delivery hose 26. The bottom of the two branches is connected to the oil circuit support 27.

[0032] A chamber A control valve 22 is installed on the pipe connecting the tee joint 20 to chamber A. The chamber A control valve 22 is located between the inlet pipe of the tee joint 20 and the converged output end. A chamber B control valve 29 is installed on the pipe connecting the tee joint 20 to chamber B. The chamber B control valve 29 is located between the inlet pipe of another tee joint 20 and the converged output end.

[0033] Filters 21 are installed on both inlet pipes of the tee connector 20.

[0034] A pressure sensor 25 is installed on the oil delivery hose 26.

[0035] Specifically, the A-chamber control valve 22, the B-chamber control valve 29, the pressure sensor 25, the oil pump motor 23, and the oil pump 24 are all electrically connected to the controller.

[0036] The top of the closed dual-chamber oil tank 1 is provided with an inspection hole cover 30. The top of the closed dual-chamber oil tank 1 is also provided with two oil filling ports 3, which are respectively connected to chamber A and chamber B. The bottom of the closed dual-chamber oil tank 1 is also provided with two oil drain ports 8, which are respectively connected to chamber A and chamber B.

[0037] The bottom of the left and right side plates of the closed dual-chamber oil tank 1 is equipped with an angle sensor 4 and a temperature sensor 5. The left and right side plates of the closed dual-chamber oil tank 1 are also equipped with oil flow pipes 6, which are connected to the interior of chamber A and chamber B respectively.

[0038] Both chamber A and chamber B have filter screens 13 connected to their bottom plates, and the two filter screens 13 are respectively connected to the two pump oil pipeline holes 10.

[0039] The bottom of the closed double-chamber oil tank 1 is provided with an oil tank support base 9.

[0040] The usage process of this utility model is as follows: Different types of fuel are added to chambers A and B. The pressure balance pipeline assembly is connected via the balance pipeline hole 2 to control the pressure difference. External fuel is injected into both chambers through the filler ports 3 on both sides. The fuel level can be observed through the fuel level pipe 6 during the process. In case of emergency fuel draining or maintenance, fuel is drained from the tank through the drain port 8, and then the inspection port cover 30 is opened to access the tank for maintenance. The fuel in each chamber is coarsely filtered through the filter screen 13 and then flows to the intelligent pumping assembly through the pipeline connected to the pumping pipeline hole 10. The tilt sensor 4 and temperature sensor 5 work in conjunction with the intelligent pumping assembly to control the fuel circuit. The entire fuel tank is connected to the vehicle body via the fuel tank support 9. This structure allows for the use of appropriate fuel for different operating conditions of the hot-blown snowplow, reducing fuel costs and extending the fuel tank's service life.

[0041] The two chambers are connected by a balance pipe 16, which is welded to the top of the fuel tank at the balance pipe hole 2. Splash guards 19 are installed at both ends of the pipe to prevent fuel splashes caused by vehicle vibrations from directly entering the balance pipe openings and to avoid liquid fuel entering the pipe. The pressure balance pipe assembly is open to the atmosphere via a vent valve 15 to adapt to changes in fuel volume, while simultaneously drawing in air and expelling fuel vapor. A collection tank 18 is located at the lowest point of the balance pipe 16. When condensed oil or splashed oil enters the balance pipe 16, it accumulates in the collection tank 18. The amount of accumulated oil is monitored by a fuel level sensor 14, and when the accumulated oil reaches a certain value, it can be discharged through a drain valve 17. This structure prevents the sealing baffle 11 and the various sealing plates of the fuel tank from deforming due to pressure differences, while ensuring a stable fuel supply.

[0042] The intelligent pumping component's piping is welded to the fuel tank bottom plate at the pumping line hole 10. Fuel in the tank flows through the pumping line and passes through the filter 21 for fine filtration, further improving fuel quality and preventing particulate matter from damaging the turbojet engine. The fuel in the two chambers is controlled by the A-chamber control valve 22 and the B-chamber control valve 29 to open and close the fuel circuit. The fuel circuit is then merged through the three-way connector 20. The subsequent fuel circuit is controlled by the pumping motor 23, the oil pump 24, and the main solenoid valve 28. Finally, the fuel is delivered to the turbojet engine through the fuel delivery hose 26. At the same time, since the pumping system piping is close to the turbojet engine, the piping support 27 is used to restrain the piping sway. The oil pump motor 23 drives the oil extraction pump 24 to rapidly increase the fuel pressure. Ignition and fuel injection can only be achieved when the fuel pressure exceeds the combustion chamber pressure. Then, the main solenoid valve controls the fuel circuit to continuously supply fuel to the turbojet engine. During the fuel supply process, the pressure sensor 25 monitors the fuel pressure after the pump. If a drop in fuel pressure is detected, the oil extraction pump continues to operate to prevent insufficient fuel pressure from hindering fuel atomization. This structure allows for intelligent control of the fuel in both chambers, thus balancing the dual goals of economy and reliability.

[0043] Figure 8 The flowchart illustrates the working principle of the intelligent pumping component. The intelligent pumping component uses data transmitted by the temperature sensor 5 and tilt sensor 4 on the oil tank to implement temperature-based economic strategy selection and attitude-based reliability control through the controller.

[0044] The specific control logic is as follows: After the system is started, it first activates and continuously monitors safety interlock signals from open flame detectors, explosion risk sensors, or emergency stop buttons. This monitoring process has the highest priority. Once any emergency oil cut-off signal is triggered, the system will immediately execute the safety interruption procedure, unconditionally closing control valve 22 in chamber A and control valve 29 in chamber B, and stopping the main oil pump, thereby completely cutting off the oil circuit to ensure safety.

[0045] In the absence of an emergency signal, the system continues to execute its existing intelligent pumping logic: first, it determines the ambient temperature based on temperature sensor data. If the temperature is higher than or equal to a preset value, it defaults to using chamber A, which stores low-priced diesel fuel. If the temperature is lower than the preset value, it switches to chamber B, which stores high-grade diesel fuel, to prevent solidification. Simultaneously, the control logic continuously receives signals from the attitude sensor to monitor the vehicle's tilt. If the attitude is normal, it executes the fuel supply scheme selected by the temperature strategy. If it detects that the vehicle is continuously tilted to one side beyond a safe angle, it forcibly switches to the chamber on the downhill side, which has more fuel, to prevent cavitation, regardless of the temperature.

[0046] Ultimately, the controller outputs commands to the valve assembly based on the comprehensive judgment results, strictly adhering to the "single pipeline oil supply" principle. This means opening the target chamber valve while simultaneously closing another valve, ensuring the main oil pump stably draws oil from a single oil circuit. This cyclical judgment process continues, prioritizing the verification of safety signals in each cycle until the system shuts down normally or is safely interrupted due to an emergency. In this way, a rapid-response and reliable safety protection mechanism is integrated while achieving both economic and reliability goals.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. An enclosed dual-chamber hot air snowplow tank characterized by: It includes a closed dual-chamber fuel tank installed on the vehicle body, with a pressure balancing pipeline assembly connected to the top of the closed dual-chamber fuel tank and an intelligent pumping assembly connected to the bottom of the closed dual-chamber fuel tank; A closed partition is vertically fixed to the center of the interior of the closed dual-chamber oil tank, dividing the oil tank into chamber A and chamber B. A wave-proof partition is vertically fixed to the interior of each chamber. A balance pipe hole is opened on the top wall of each chamber, and both balance pipe holes are connected to the pressure balance pipe assembly. A pump oil pipe hole is opened on the bottom wall of each chamber, and both pump oil pipe holes are connected to the intelligent pumping assembly. The front and rear plates of the closed dual-chamber oil tank are both designed as bent plate structures. The pressure balancing pipeline assembly includes a balancing pipeline, a vent valve, a drain valve, a collection tank, and a splash guard. The two ends of the balancing pipeline are respectively equipped with splash guards and connected to two balancing pipeline holes. The top of the middle section of the balancing pipeline is connected to a vent valve, and the bottom of the middle section of the balancing pipeline is connected to a collection tank. An oil level sensor is installed on the collection tank, and the bottom wall of the collection tank is connected to a drain valve.

2. A closed dual chamber hot air snowplow vehicle fuel tank as defined in claim 1, wherein: The intelligent pumping assembly includes a three-way connector, a pump motor, a suction pump, an oil delivery hose, and an oil circuit support base. The inlet pipes at both ends of the three-way connector are respectively connected to two pump oil pipeline holes. The output port of the three-way connector is divided into two branches. One branch is connected to the main solenoid valve, and the other branch is connected to the pump motor and the suction pump. The output ends of the two branches converge and are connected to the oil delivery hose. The bottom of the two branches are connected to the oil circuit support base.

3. A closed dual chamber hot air snowplow vehicle fuel tank as defined in claim 2, wherein: An A-cavity control valve is installed on the pipe connecting the tee joint to the A-cavity, and the A-cavity control valve is located between the inlet pipe of the tee joint and the converging output end; a B-cavity control valve is installed on the pipe connecting the tee joint to the B-cavity, and the B-cavity control valve is located between the inlet pipe of another tee joint and the converging output end.

4. A closed dual chamber hot air snowplow vehicle fuel tank as defined in claim 3, wherein: The two inlet pipes of the tee joint are equipped with filters.

5. A closed dual chamber hot air snowplow vehicle fuel tank as defined in claim 4, wherein: A pressure sensor is installed on the oil delivery hose.

6. A closed dual chamber hot air snowplow vehicle fuel tank as defined in claim 1, wherein: The top of the closed dual-chamber oil tank is provided with an inspection hole cover; the top of the closed dual-chamber oil tank is also provided with two oil filling ports, which are respectively connected to chamber A and chamber B; the bottom of the closed dual-chamber oil tank is also provided with two oil drain ports, which are respectively connected to chamber A and chamber B.

7. A closed dual chamber hot air snowplow vehicle fuel tank as defined in claim 1, wherein: The bottom of the left and right side plates of the closed dual-chamber oil tank is equipped with tilt sensors and temperature sensors. The left and right side plates of the closed dual-chamber oil tank are also equipped with oil flow pipes, which are respectively connected to the interior of chamber A and chamber B.

8. A closed dual chamber hot air snowplow vehicle fuel tank as defined in claim 2, wherein: Both chamber A and chamber B have filter screens connected to their bottom plates, and the two filter screens are respectively connected to the two pump oil pipeline holes.

9. A closed dual chamber hot air snowplow vehicle fuel tank as defined in claim 1, wherein: The bottom of the enclosed dual-chamber oil tank is equipped with an oil tank support base.

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