Vehicle-mounted diesel tank with heating and heat preservation device

Abstract

The invention provides a vehicle-mounted diesel oil tank with a heating and heat preservation device. The vehicle-mounted diesel oil tank comprises a diesel oil tank body, an electric heating rod attached seat, a heat exchange sheet assembly, an oil outlet attached seat, a thermocouple attached seat, an oil filling port screw plug seat, an electric heating plate, an electric heating film, an oil outlet heating rod, an electric heating rod, a thermocouple temperature sensor, an oil outlet rotating joint and a breathing type oil filling port cover. Based on the temperature monitored by the thermocouple temperature sensor and the working state of the vehicle, the vehicle-mounted diesel tank with the heating and heat preservation device achieves heating and heat preservation of diesel oil by controlling different gear electric heating modes so as to guarantee normal cold starting of a vehicle engine and running of fuel oil supply under the working condition of extremely low temperature. The cold-start small oil tank is suitable for being connected with a main oil tank in series (or in parallel) under the extremely-low-temperature working condition of a vehicle in a cold region; or the oil tank is independently used as a vehicle heating pot oil tank to guarantee that a heat source is provided after the vehicle heating pot is started.

Description

Technical Field

[0001] The invention belongs to the technical field of vehicle power assistance, and in particular relates to a vehicle-mounted diesel tank with a heating and heat preservation device, which is particularly suitable for cold areas. Background Art

[0002] In the cold winter, especially in the far north, when the ambient temperature drops significantly and is lower than the applicable temperature of the diesel grade filled in the vehicle, the diesel begins to precipitate paraffin crystals, the kinematic viscosity increases, and the fluidity becomes poor; when the ambient temperature drops further, the waxy precipitates in the diesel gradually lose their fluidity (all grades of diesel will have this characteristic as the temperature drops), and the diesel in the pipeline will gradually cool down and wax during the flow process, and even condense and interrupt the fuel supply and cannot drive. Therefore, it is necessary to design an efficient and controllable heating and insulation device for on-board diesel tanks suitable for cold regions to solve the problem of poor fuel supply during cold start and initial operation of vehicles under extremely low temperature diesel wax precipitation conditions. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] The present invention provides a vehicle-mounted diesel tank with a heating and heat preservation device to solve the technical problem that when the ambient temperature of the vehicle is cold started and is lower than the lowest temperature at which the diesel fueled in the vehicle can be used, the fluidity of the diesel fuel decreases, thereby causing the engine to be unable to start due to poor fuel supply.

[0005] (II) Technical solution

[0006] In order to solve the above technical problems, the present invention proposes a vehicle-mounted diesel tank with a heating and heat preservation device, which includes a diesel tank body, an electric heating rod attachment, a heat exchange plate assembly, an oil outlet attachment, a thermocouple attachment, a fuel filler screw plug seat, an electric heating plate, an electric heating film, an oil outlet heating rod, an electric heating rod, a thermocouple temperature sensor, an oil outlet rotary joint and a breathing fuel filler cap; wherein,

[0007] A heating plate is fixed on the outside of the bottom plate of the diesel tank; electric heating films are fixed on the outside of the left and right side plates and the rear plate of the diesel tank respectively; a thermocouple attachment seat, an oil outlet attachment seat and multiple electric heating rod attachment seats are welded on the front plate of the diesel tank; a fuel filler screw plug seat is welded on the top plate of the diesel tank;

[0008] The oil outlet rotary joint has a three-way form, the inlet end of the oil outlet rotary joint is installed on the oil outlet attachment seat through threads, and the oil outlet heating rod is installed on one of the outlet ends of the oil outlet rotary joint through threads to heat the outflowing diesel;

[0009] The thermocouple temperature sensor is installed on the thermocouple attachment seat through threads, and is used to measure the temperature of the diesel in the diesel tank; multiple electric heating rods are installed on the corresponding electric heating rod attachment seats through threads, and are used to heat the diesel in the diesel tank; the breathing type fuel filler cap is installed on the fuel filler screw plug seat through threads;

[0010] A heat exchange fin assembly is welded on the inner side of the bottom plate of the diesel tank.

[0011] Furthermore, the diesel tank body is surrounded by four diesel tank enclosures and two diesel tank side panels to form a rectangular box structure; wherein the four diesel tank enclosures serve as the top plate, bottom plate, front panel and rear panel of the diesel tank body respectively, and the two diesel tank side panels serve as the left and right side panels of the diesel tank body respectively.

[0012] Furthermore, the overlapping joints between the connected diesel tank enclosures are fully welded on the outside and segmented welded on the inside; and full welding is used to seal the two diesel tank side panels and the adjacent diesel tank enclosures.

[0013] Furthermore, a plurality of electric heating rod attachment seats are arranged in layers.

[0014] Furthermore, the heat exchange plate assembly includes heat dissipation fins, heat exchange plate assembly mounting attachments, a heat exchange aluminum base plate and fixing bolts; wherein, a plurality of heat exchange plate assembly mounting attachments are provided on the lower surface of the heat exchange aluminum base plate, and the plurality of fixing bolts are inserted from the heat exchange aluminum base plate into the top threaded holes of the corresponding fixing bolts after being covered with flat washers and spring washers, so that the heat exchange aluminum base plate is fixedly connected to the heat exchange plate assembly mounting attachments, and the bottom of each heat exchange plate assembly mounting attachment is welded to the inner side of the bottom plate of the diesel tank; heat dissipation fins are welded on the upper surface of the heat exchange aluminum base plate, which are used to conduct the heat generated by the electric heating rod located at the bottom of the diesel tank to the upper part of the diesel tank, so as to melt the waxed or condensed diesel on the upper part.

[0015] Furthermore, an array of staggered circular holes is processed on the heat exchange aluminum bottom plate.

[0016] Furthermore, the heat dissipation fins include outer fins and inner fins, and the upper surface of the heat exchange aluminum bottom plate is welded with outer fins located on both sides and a plurality of inner fins located inside.

[0017] Further, the length of the outer fin is shorter than the adjacent inner fin.

[0018] Furthermore, a plurality of reinforcing fins are welded to the upper surface of the heat exchange aluminum bottom plate. The reinforcing fins are located between two adjacent heat dissipation fins and are arranged at 45 degrees to the adjacent heat dissipation fins.

[0019] Furthermore, the outer periphery of the diesel tank is wrapped with thermal insulation cotton.

[0020] (III) Beneficial effects

[0021] The present invention proposes a vehicle-mounted diesel tank with a heating and heat preservation device, including a diesel tank body, an electric heating rod attachment, a heat exchange plate assembly, an oil outlet attachment, a thermocouple attachment, a fuel filler screw plug seat, an electric heating plate, an electric heating film, an oil outlet heating rod, an electric heating rod, a thermocouple temperature sensor, an oil outlet rotary joint and a breathing fuel filler cap. Based on the temperature monitored by the thermocouple temperature sensor and the working state of the vehicle, the vehicle-mounted diesel tank with a heating and heat preservation device controls the electric heating mode of different gears to achieve the heating and heat preservation of diesel, so as to ensure the normal cold start of the vehicle engine and the fuel supply under extremely low temperature conditions. The present invention is suitable for a small cold start fuel tank connected in series (or in parallel) with the main fuel tank of a vehicle under extremely low temperature conditions in cold areas; or as a separate vehicle heating pot fuel tank to ensure that a heat source is provided after the vehicle heating pot is started. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front view of the vehicle-mounted diesel tank structure with a heating and heat preservation device of the present invention;

[0023] Figure 2 It is a side view of the vehicle-mounted diesel tank structure with a heating and heat preservation device of the present invention;

[0024] Figure 3 It is a schematic diagram of the installation combination of the electric heating rod and the oil outlet rotary joint in the present invention;

[0025] Figure 4a This is the front view of the heat exchange plate assembly in the present invention. Figure 4b This is a top view. DETAILED DESCRIPTION

[0026] In order to make the purpose, content and advantages of the present invention more clear, the specific implementation methods of the present invention are further described in detail below in conjunction with the drawings and examples.

[0027] This embodiment provides a vehicle-mounted diesel tank with a heating and heat preservation device, which is used to achieve heating and heat preservation of diesel to ensure the normal cold start of the vehicle power unit and the stable fuel supply under extremely low temperature conditions. Figure 1 and 2 As shown, the heating and heat preservation device mainly includes a diesel tank body, an electric heating rod attachment seat 3, a heat exchange plate assembly 4, an oil outlet attachment seat 5, a thermocouple attachment seat 6, a fuel filler screw plug seat 7, an electric heating plate 8, an electric heating film 9, an oil outlet heating rod 10, an electric heating rod 11, a thermocouple temperature sensor 12, an oil outlet rotary joint 13, a breathable fuel filler cap 14 and a heat preservation cotton 15.

[0028] The diesel tank body is surrounded by four diesel tank panels 1 and two diesel tank side panels 2 to form a rectangular box structure. Among them, the four diesel tank panels 1 are respectively used as the top plate, bottom plate, front panel and rear panel of the diesel tank body. The overlapping joints between the connected diesel tank panels 1 are full welded on the outside and segmented welded on the inside. The two diesel tank side panels 2 are respectively used as the left and right side panels of the diesel tank body. The two diesel tank side panels 2 and the adjacent diesel tank panels 1 are fully welded and sealed. After welding, the diesel tank body is pressure tested and no leakage is allowed. If there is leakage, repair welding is allowed, the welds and welding spatters are cleaned, the inner surface is coated with epoxy phenolic anti-corrosion baking paint, and the outer surface is coated with epoxy zinc-rich primer.

[0029] A heating plate 8 is pasted and fixed on the outside of the bottom plate of the diesel tank. An electric heating film 9 is pasted and fixed on the outside of the left and right side plates and the rear plate of the diesel tank. A thermocouple attachment 6, an oil outlet attachment 5 and multiple electric heating rod attachments 3 are welded on the front panel of the diesel tank. Among them, multiple electric heating rod attachments 3 are arranged in layers. A fuel filler screw plug seat 7 is welded on the top plate of the diesel tank.

[0030] The oil outlet rotary joint 13 has a three-way form, such as Figure 3 The inlet end of the oil outlet rotary joint 13 is threadedly mounted on the oil outlet attachment 5, and the oil outlet heating rod 10 is threadedly mounted on one of the outlet ends of the oil outlet rotary joint 13 for heating the outflowing diesel.

[0031] Thermocouple temperature sensor 12 is threadedly mounted on thermocouple attachment 6 for measuring the temperature of diesel inside the diesel tank. Multiple electric heating rods 11 are threadedly mounted on corresponding electric heating rod attachments 3 for performing multi-layer heating of diesel inside the diesel tank. Breathable fuel filler cap 14 is threadedly mounted on fuel filler plug seat 7.

[0032] A heat exchange plate assembly 4 is welded to the inner side of the bottom plate of the diesel tank. Figure 4a and 4bAs shown, the heat exchanger assembly 4 includes an outer aluminum fin 401, an inner aluminum fin 402, a reinforced aluminum fin 403, a heat exchanger assembly mounting attachment 404, a heat exchanger aluminum bottom plate 405, a flat washer 406, a spring washer 407 and a fixing bolt 408. Among them, the heat exchanger aluminum bottom plate 405 is processed with an array of staggered circular holes to facilitate heat conduction inside the diesel tank and the flow of melted diesel to the bottom of the diesel tank. A plurality of heat exchanger assembly mounting attachments 404 are arranged on the lower surface of the heat exchanger aluminum bottom plate 405. After the flat washer 406 and the spring washer 407 are put on, a plurality of fixing bolts 408 are inserted into the top threaded holes of the corresponding fixing bolts 408 from the heat exchanger aluminum bottom plate 405, and the heat exchanger aluminum bottom plate 405 is fixedly connected to the heat exchanger assembly mounting attachment 404. The bottom of each heat exchanger assembly mounting attachment 404 is welded to the inner side of the bottom plate of the diesel tank. The upper surface of the heat exchange aluminum bottom plate 405 is welded with outer aluminum fins 401 located on both sides and multiple inner aluminum fins 402 located inside, which are used to conduct the heat generated by the electric heating rod 11 located at the bottom of the diesel tank to the upper part of the diesel tank to melt the waxed or condensed diesel on the upper part. The length of the outer aluminum fin 401 is smaller than the adjacent inner aluminum fin 402, so as to leave space for screwing the fixing bolt 408. The upper surface of the heat exchange aluminum bottom plate 405 is also welded with multiple reinforced aluminum fins 403, which are located between two adjacent aluminum fins and are set at 45 degrees with the adjacent aluminum fins, for strengthening the structure and increasing the heat conduction area.

[0033] The diesel tank body is wrapped with insulation cotton 15 required for the corresponding working conditions. After assembly, the vehicle-mounted diesel tank with heating and insulation device is subjected to pressure test. There shall be no leakage. If the thread part leaks, thread locking glue is allowed. The specific brand and specification are specified by the process according to the specific situation, but there shall be no glue on the grinding surface.

[0034] Based on the temperature monitored by the thermocouple temperature sensor 121 and the working state of the vehicle, the vehicle-mounted diesel tank with a heating and heat preservation device of the present invention controls the electric heating working mode by a three-gear switch (off, 1st gear, 2nd gear). When the switch is in the "off" state, the device stops working and is in a power-off state; when the switch is in the "1st gear" state, the oil outlet heating rod 10 of the device, the electric heating plate 8 at the bottom of the diesel tank, the electric heating film 9 (3 pieces) and the electric heating film along the pipeline start heating work to achieve the diesel insulation function; when the switch is in the "2nd gear" state, all the heating parts of the "1st gear" in the device continue to work, and the electric heating rod 11 inside the fuel tank starts heating work (the number of electric heating rods inside the fuel tank can be appropriately adjusted according to the working conditions), realizing the diesel heating function. The device realizes the heating and heat preservation functions of the diesel by controlling different gears to ensure the normal cold start of the vehicle engine and the fuel supply under extremely low temperature conditions.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A vehicle-mounted diesel tank with a heating and heat preservation device, characterized in that: The vehicle-mounted diesel tank with a heating and heat preservation device includes a diesel tank body, an electric heating rod attachment, a heat exchange plate assembly, an oil outlet attachment, a thermocouple attachment, a fuel filler screw plug seat, an electric heating plate, an electric heating film, an oil outlet heating rod, an electric heating rod, a thermocouple temperature sensor, an oil outlet rotary joint and a breathing fuel filler cap; wherein, A heating plate is fixed on the outside of the bottom plate of the diesel tank; electric heating films are fixed on the outside of the left and right side plates and the rear plate of the diesel tank respectively; a thermocouple attachment seat, an oil outlet attachment seat and multiple electric heating rod attachment seats are welded on the front plate of the diesel tank; a fuel filler screw plug seat is welded on the top plate of the diesel tank; The oil outlet rotary joint has a three-way form, the inlet end of the oil outlet rotary joint is installed on the oil outlet attachment seat through threads, and the oil outlet heating rod is installed on one of the outlet ends of the oil outlet rotary joint through threads to heat the outflowing diesel; The thermocouple temperature sensor is installed on the thermocouple attachment seat through threads, and is used to measure the temperature of the diesel in the diesel tank; multiple electric heating rods are installed on the corresponding electric heating rod attachment seats through threads, and are used to heat the diesel in the diesel tank; the breathing type fuel filler cap is installed on the fuel filler screw plug seat through threads; A heat exchange fin assembly is welded on the inner side of the bottom plate of the diesel tank.

2. The vehicle-mounted diesel tank with a heating and heat preservation device according to claim 1, characterized in that: The diesel tank body is surrounded by four diesel tank enclosures and two diesel tank side panels to form a rectangular box structure; wherein the four diesel tank enclosures serve as the top plate, bottom plate, front plate and rear plate of the diesel tank body respectively, and the two diesel tank side panels serve as the left and right side panels of the diesel tank body respectively.

3. The vehicle-mounted diesel tank with a heating and heat preservation device as claimed in claim 2, characterized in that: The overlapping joints between the connected diesel tank enclosures are fully welded on the outside and segmented welded on the inside; full welding is used to seal the two diesel tank side panels and the adjacent diesel tank enclosures.

4. The vehicle-mounted diesel tank with a heating and heat preservation device according to claim 1, characterized in that: A plurality of electric heating rod attachment seats are arranged in layers.

5. The vehicle-mounted diesel tank with a heating and heat preservation device according to claim 1, characterized in that: The heat exchange plate assembly includes heat dissipation fins, heat exchange plate assembly mounting attachments, heat exchange aluminum base plate and fixing bolts; wherein, a plurality of heat exchange plate assembly mounting attachments are arranged on the lower surface of the heat exchange aluminum base plate, and a plurality of fixing bolts are inserted from the heat exchange aluminum base plate into the top threaded holes of the corresponding fixing bolts after being covered with flat washers and spring washers, so that the heat exchange aluminum base plate is fixedly connected with the heat exchange plate assembly mounting attachments, and the bottom of each heat exchange plate assembly mounting attachment is welded to the inner side of the bottom plate of the diesel tank; heat dissipation fins are welded on the upper surface of the heat exchange aluminum base plate, which are used to conduct the heat generated by the electric heating rod located at the bottom of the diesel tank to the upper part of the diesel tank to melt the waxed or condensed diesel on the upper part.

6. The vehicle-mounted diesel tank with a heating and heat preservation device as claimed in claim 5, characterized in that: The heat exchange aluminum base plate is machined with an array of staggered circular holes.

7. The vehicle-mounted diesel tank with a heating and heat preservation device as claimed in claim 5, characterized in that: The heat dissipation fins include outer fins and inner fins. The upper surface of the heat exchange aluminum bottom plate is welded with outer fins located on both sides and multiple inner fins located inside.

8. The vehicle-mounted diesel tank with a heating and heat preservation device as claimed in claim 7, characterized in that: The outer fins are shorter than the adjacent inner fins.

9. The vehicle-mounted diesel tank with a heating and heat preservation device as claimed in claim 5, characterized in that: A plurality of reinforcing fins are welded to the upper surface of the heat exchange aluminum bottom plate. The reinforcing fins are located between two adjacent heat dissipation fins and are arranged at 45 degrees to the adjacent heat dissipation fins.

10. The vehicle-mounted diesel tank with a heating and heat preservation device according to claim 1, characterized in that: The diesel tank is wrapped with thermal insulation cotton.

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