Fuel oil pipeline heat preservation device suitable for diesel engine

Abstract

The utility model provides a fuel oil pipeline heat preservation device suitable for a diesel engine, which belongs to the technical field of engine fuel oil pipelines, and comprises a fuel oil pipeline, a tail gas main pipe, a tail gas branch pipe, a heat conduction wire and an outer wrapping piece, the tail gas branch pipe is communicated with the tail gas main pipe, the tail gas branch pipe extends to one side close to the fuel oil pipeline, and the heat conduction wire is arranged in the tail gas branch pipe. One end of the heat conducting wire is in contact with the outer surface of a tail gas branch pipe, the other end of the heat conducting wire extends to one side of the fuel oil pipeline and is in contact with the outer surface of the fuel oil pipeline, and the outer wrapping piece wraps the outer surface of the fuel oil pipeline and the outer surface of the heat conducting wire. The heat preservation device does not need an external power source to convert heat energy for heat supply and heat preservation, heat preservation is conducted on the fuel oil pipeline in a heat conduction mode, when a diesel vehicle runs in a low-temperature environment, the fluidity of diesel oil is activated, the fuel oil efficiency is improved, recycled heat is converted and utilized, energy is saved, environment is protected, and applicability is high.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of engine fuel pipeline, in particular to a fuel pipeline heat preservation device suitable for diesel engine. BACKGROUND

[0002] The diesel engine is an engine that obtains energy release by burning diesel. Because the cold filter point and the freezing point of diesel are relatively low, in the low-temperature environment of the north in winter, the low-grade diesel in the diesel engine and the fuel pipeline has reduced flowability due to the influence of low-temperature cold air, which leads to the performance degradation of the diesel engine, reduces the fuel efficiency, and even may damage the precision components such as the high-pressure oil pump. Therefore, an auxiliary heat preservation device is needed to increase the temperature of the diesel engine or the fuel pipeline to improve the flowability of diesel.

[0003] For example, the utility model patent with the patent number CN200720019278.9 discloses a diesel engine oil circuit heater, which winds or binds the electric heating wire with positive temperature coefficient of resistance on the outer wall of the oil suction pipe, the oil pipe and the coarse filter. Thus, the original oil circuit structure is not damaged, the installation is simple and quick, the disassembly and maintenance are convenient, the heating effect is good, and the energy is saved.

[0004] However, the diesel engine oil circuit heater needs to continuously supply power to the electric heating wire through the power supply device, and the power supply device needs to be frequently charged to ensure the normal work of the electric heating wire, which is time-consuming. Meanwhile, the power supply device and the electric heating wire need to be involved in work during the driving of the vehicle, which has a high risk coefficient. Therefore, the method of continuously supplying power to the electric heating wire through the power supply device to heat the fuel pipeline of the diesel engine has low applicability. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model provides a fuel pipeline heat preservation device suitable for diesel engine to solve the technical problem that the existing technology needs to continuously supply power to the electric heating wire through the power supply device to heat the fuel pipeline of the diesel engine, which has low applicability.

[0006] The technical solution of the utility model to solve the above technical problem is as follows:

[0007] A fuel pipeline heat preservation device suitable for diesel engine, which comprises a fuel pipeline and a tail gas main pipe, and further comprises a tail gas branch pipe, a heat conducting wire and an outer wrapping piece. The tail gas branch pipe is in communication with the tail gas main pipe, and the tail gas branch pipe extends to the side close to the fuel pipeline. One end of the heat conducting wire is in contact with the outer surface of the tail gas branch pipe, and the other end of the heat conducting wire extends to the side of the fuel pipeline and is in contact with the outer surface of the fuel pipeline. The outer wrapping piece wraps the outer surface of the fuel pipeline and the outer surface of the heat conducting wire.

[0008] Preferably, one end of the heat-conducting wire is spirally wound to the outer surface of the tail gas branch pipe, and the other end of the heat-conducting wire is spirally wound to the outer surface of the fuel pipeline.

[0009] Preferably, the heat-conducting wire is provided with a plurality of turns and arranged in sequence on the outer surface of the fuel pipeline.

[0010] Preferably, the heat-conducting wire is one of a heat pipe or a copper pipe.

[0011] Preferably, the heat-conducting wire is further provided with a spiral turn.

[0012] Preferably, the fuel pipeline heat preservation device suitable for a diesel engine further comprises a clamp, the clamp is connected with both ends of the heat-conducting wire, and the clamp is detachably clamped on the tail gas branch pipe.

[0013] Preferably, the outer wrapping member comprises a fire-retardant layer, and the fire-retardant layer is wrapped to the outer surface of the fuel pipeline and the outer surface of the heat-conducting wire.

[0014] Preferably, the outer wrapping member further comprises a heat preservation layer, and the heat preservation layer is wrapped to the outer surface of the fire-retardant layer.

[0015] Preferably, the outer wrapping member further comprises a protective layer, and the protective layer is wrapped to the outer surface of the heat preservation layer.

[0016] Compared with the prior art, the utility model has at least the following advantages:

[0017] The heat preservation device does not need an external power supply to convert heat energy for heating and heat preservation, mainly recovers and utilizes the high-temperature heat in the tail gas discharged by the diesel engine during the driving process of the diesel vehicle, and heat preservation is performed on the fuel pipeline in a heat conduction mode, so that the flowability of the diesel oil is activated when the diesel vehicle drives in a low-temperature environment, fuel efficiency is improved, heat recovery and utilization are realized, energy saving and environmental protection are realized, and the applicability is relatively strong. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic view of the fuel pipeline heat preservation device suitable for a diesel engine.

[0019] Figure 2 It is an axonometric view of the fuel pipeline and the tail gas main pipe.

[0020] Figure 3 It is a top view of the fuel pipeline and the tail gas main pipe.

[0021] Figure 4 It is a sectional view of the fuel pipeline.

[0022] In the figure: diesel engine 100, fuel pipeline 200, oil tank 210, tail gas main pipe 300, tail gas branch pipe 400, heat conducting wire 500, spiral joint 510, outer wrapping piece 600, flame retardant layer 610, heat preservation layer 620, protective layer 630, clamp 700. DETAILED DESCRIPTION

[0023] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict. The technical scheme of the utility model will be further described below in combination with the drawings of the embodiments of the utility model. The utility model is not limited to the following specific embodiments.

[0024] It should be understood that the same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components. In the description of the utility model, it should be understood that if the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom" and the like indicate the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the patent, for those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0025] Please refer to Figures 1 to 4 A fuel pipeline heat preservation device suitable for diesel engine, comprising a diesel engine 100, a fuel pipeline 200 and a tail gas main pipe 300, the diesel engine 100 starts to draw diesel in the oil tank 210 through the fuel pipeline 200, further comprising a tail gas branch pipe 400, a heat conducting wire 500 and an outer wrapping piece 600.

[0026] The tail gas branch pipe 400 communicates with the tail gas main pipe 300, the tail gas branch pipe 400 extends to the side close to the fuel pipeline 200, the tail gas branch pipe 400 and the tail gas main pipe 300 have the same effect, both are used for discharging tail gas, the temperature of the tail gas is high after the diesel in the diesel engine 100 is burned, so that the temperature of the tail gas branch pipe 400 and the tail gas main pipe 300 reaches 100-300 DEG C.

[0027] The heat-conducting wire 500 is in contact with the outer surface of the tail gas branch pipe 400 at one end, and extends to one side of the fuel pipeline 200 and is in contact with the outer surface of the fuel pipeline 200 at the other end. The heat-conducting wire 500 is a commonly used heat pipe or copper pipe, etc., has good heat-conducting performance, and can realize heat-conducting transmission. The heat pipe or copper pipe is an existing device, and will not be described here. The outer wrapping member 600 wraps the outer surface of the fuel pipeline 200 and the outer surface of the heat-conducting wire 500.

[0028] The heat preservation process is as follows: the heat preservation device is used in cold climate in the north and is suitable for heat preservation of the fuel pipeline 200 during driving of a diesel vehicle. Mainly, the high temperature generated by the tail gas pipe when discharging tail gas is recycled and utilized to heat the fuel pipeline 200. Specifically, the tail gas branch pipe 400 is in communication with the tail gas main pipe 300. When the tail gas flows through the tail gas branch pipe 400, most of the tail gas flows out of the tail gas main pipe 300, and part of the tail gas flows into the tail gas branch pipe 400. After the tail gas heats the tail gas branch pipe 400, the tail gas finally flows into the tail gas main pipe 300 and is discharged. Since the tail gas branch pipe 400 is close to one side of the fuel pipeline 200, it is mainly used to prevent the heat of the tail gas branch pipe 400 from being quickly lost. One end of the heat-conducting wire 500 is in contact with the outer surface of the tail gas branch pipe 400, and the other end of the heat-conducting wire 500 is in contact with the outer surface of the fuel pipeline 200. The heat-conducting wire 500 can quickly transfer the heat emitted from the outer surface of the tail gas branch pipe 400 to the outer surface of the fuel pipeline 200 through the heat-conducting wire 500, heat and preserve the outer surface of the fuel pipeline 200, and then achieve the heat preservation effect of diesel in the fuel pipeline 200. The outer surface of the fuel pipeline 200 and the outer surface of the heat-conducting wire 500 are wrapped by the outer wrapping member 600, which is mainly used to reduce the heat loss of the heat-conducting wire 500 and the heat loss of the outer surface of the fuel pipeline 200 during heat conduction. At the same time, the outer wrapping member 600 can also provide the functions of flame retardation, waterproofness, and abrasion resistance. When the vehicle stops driving, the tail gas stops discharging, the temperature of the heat-conducting wire 500 decreases, and the heat preservation of the fuel pipeline 200 ends. The heat preservation device does not need an external power supply to convert heat energy for heat preservation. During driving of the diesel vehicle, the high-temperature heat of the tail gas discharged by the diesel engine 100 is mainly recycled and utilized to heat the fuel pipeline 200 through heat conduction, so that the diesel vehicle can drive in a low-temperature environment, the flowability of diesel is activated, the fuel efficiency is improved, the recycled heat is converted and utilized, energy saving and environmental protection are achieved, and the applicability is relatively strong.

[0029] Further, referring to Figure 2The heat-conducting wire 500 is in a cylindrical shape, one end of the heat-conducting wire 500 is spirally wound to the outer surface of the tail gas branch pipe 400, and the other end of the heat-conducting wire 500 is spirally wound to the outer surface of the fuel pipeline 200. The cylindrical heat-conducting wire 500 is convenient to be spirally wound to the outer surface of the fuel pipeline 200 and the outer surface of the tail gas branch pipe 400, and the winding is relatively firm and not easy to fall off; at the same time, the heat-conducting wire 500 can be closely attached to the outer surface of the fuel pipeline 200 and the outer surface of the tail gas branch pipe 400, thereby improving the heat transfer efficiency.

[0030] Further, the heat-conducting wire 500 is in an arc sheet shape, one end of the heat-conducting wire 500 is attached to the outer surface of the tail gas branch pipe 400, and the other end of the heat-conducting wire 500 is attached to the outer surface of the fuel pipeline 200. This way can also make the heat-conducting wire 500 have a higher heat transfer efficiency.

[0031] Further preferably, in order to improve the heat transfer efficiency of the heat-conducting wire 500, the heat-conducting wire 500 is provided with a plurality of sections and arranged in sequence on the outer surface of the fuel pipeline 200. The plurality of sections of the heat-conducting wire 500 simultaneously transfer heat to the fuel pipeline 200, thereby improving the heat transfer efficiency. Even in a low-temperature environment, the fuel pipeline 200 can be in a heat preservation state, thereby activating the flowability of diesel.

[0032] Further description, the heat-conducting wire 500 is one of a heat pipe or a copper pipe, which is a good heat-conducting material with low thermal resistance and less heat loss, and can continuously heat the fuel pipeline 200.

[0033] Further, the heat-conducting wire 500 is one of a heat pipe or a copper pipe, which is a good heat-conducting material with low thermal resistance and less heat loss, and can continuously heat the fuel pipeline 200. Figure 2 and Figure 3 Further, the heat-conducting wire 500 is provided with a spiral section 510, and the spiral section 510 is located between the tail gas branch pipe 400 and the fuel pipeline 200. Due to the severe jolt of the vehicle during driving, the heat-conducting wire 500 is prone to deformation, and after multiple deformations, the heat-conducting wire 500 may even be broken. The spiral section 510 is provided, and when the vehicle is severely jolted, the spiral section 510 will be stretched or rotated out of position, without causing the overall deformation of the heat-conducting wire 500, and can reduce the risk of breaking of the heat-conducting wire 500, thereby improving the service life of the heat-conducting wire 500.

[0034] Further, the heat-conducting wire 500 is one of a heat pipe or a copper pipe, which is a good heat-conducting material with low thermal resistance and less heat loss, and can continuously heat the fuel pipeline 200. Figure 2The fuel pipeline heat preservation device for diesel engine further comprises a clamp 700, the clamp 700 is connected with the both ends of the heat conduction wire 500, and the clamp 700 is detachably clamped on the exhaust branch pipe 400. The clamp 700 can be tightened or loosened, and the clamp 700 can be selected as an existing spring clamp 700. The clamp 700 is used for fixing the heat conduction wire 500 on the exhaust branch pipe, so that the heat conduction wire 500 is prevented from deviating during vehicle vibration.

[0035] In a possible embodiment, the participants Figure 4 The outer wrapping member 600 comprises a fireproof layer 610, which is wrapped to the outer surface of the fuel pipeline 200 and the outer surface of the heat conduction wire 500. The fireproof layer 610 is used for preventing combustion. Specifically, the fireproof layer 610 can be selected as spraying or coating fireproof material on the outer surface of the heat conduction wire 500 and the outer surface of the fuel pipeline 200, so as to achieve the fireproof effect; in addition, the fireproof layer 610 can also be selected as wrapping fireproof soft material such as flexible fireproof plate on the heat conduction wire 500 and the fuel pipeline 200.

[0036] In a preferred embodiment, the outer wrapping member 600 further comprises a heat preservation layer 620, which is wrapped to the outer surface of the fireproof layer 610. The heat preservation layer 620 is used for heat preservation of the outer surface of the heat conduction wire 500 and the outer surface of the fuel pipeline 200, so as to prevent heat loss. Specifically, the heat preservation layer 620 can be selected as rock wool, which has good heat preservation performance and does not burn.

[0037] In a preferred embodiment, the outer wrapping member 600 further comprises a protection layer 630, which is wrapped to the outer surface of the heat preservation layer 620. The protection layer 630 is mainly used for waterproofing and anti-collision. Specifically, the protection layer 630 can be selected as thin iron plate or iron wire mesh.

[0038] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not the limitation of the embodiments of the utility model. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A fuel line heat retaining device for a diesel engine, comprising a fuel line and an exhaust main, characterized by, The device further comprises a tail gas branch pipe, a heat conducting wire and an outer wrapping part, the tail gas branch pipe is communicated with the tail gas main pipe, the tail gas branch pipe extends to the side close to the fuel pipeline, one end of the heat conducting wire is in contact with the outer surface of the tail gas branch pipe, the other end of the heat conducting wire extends to the side of the fuel pipeline and is in contact with the outer surface of the fuel pipeline, and the outer wrapping part wraps the outer surface of the fuel pipeline and the outer surface of the heat conducting wire.

2. The fuel line heater for a diesel engine according to claim 1, wherein One end of the heat conducting wire is spirally wound to the outer surface of the tail gas branch pipe, and the other end of the heat conducting wire is spirally wound to the outer surface of the fuel pipeline.

3. The fuel line heater for a diesel engine according to claim 2, wherein The heat conducting wire is provided with a plurality of sections and is arranged on the outer surface of the fuel pipeline in sequence.

4. The fuel line heater for a diesel engine according to claim 1, wherein The heat conducting wire is one of a heat pipe or a copper pipe.

5. The fuel line heater for a diesel engine according to claim 4, wherein The heat conducting wire is further provided with a spiral section.

6. The fuel line heater for a diesel engine according to claim 1, wherein The device for heat preservation of the fuel pipeline of the diesel engine further comprises a clamp, the clamp is connected with both ends of the heat conducting wire, and the clamp is detachably clamped on the tail gas branch pipe.

7. The fuel line heater for a diesel engine according to claim 1, wherein The outer wrapping part comprises a fireproof layer, and the fireproof layer wraps the outer surface of the fuel pipeline and the outer surface of the heat conducting wire.

8. The fuel line heater for a diesel engine according to claim 7, wherein The outer wrapping part further comprises a heat preservation layer, and the heat preservation layer wraps the outer surface of the fireproof layer.

9. The fuel line heater for a diesel engine according to claim 8, wherein The outer wrapping part further comprises a protective layer, and the protective layer wraps the outer surface of the heat preservation layer.

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