A small power clean fuel liquid heater

Abstract

The utility model discloses a low -power clean type fuel oil liquid heater, the utility model relates to fuel oil liquid heater technical field. Include: the head assembly is fixedly connected with the combustion chamber in the inside of head assembly, the outer wall of combustion chamber is equipped with the heat transfer body, the outer wall fixed connection of head assembly top has control system, the combustion air of through combustion fan introduction is guided to the combustion chamber to the combustion chamber through the combustion chamber cover and primary combustion chamber shunt even air current, has provided sufficient and even distribution combustion air for fuel oil combustion, has guaranteed its to reach the ignition point after full combustion, simultaneously, the ignition sensor real -time monitoring combustion state, once found the exception to the control system through ECU feedback, timely adjustment operating parameter to maintain stable combustion, has reduced the residual of fuel oil because of the insufficient combustion, not only has improved the combustion efficiency of fuel, also reduced the content of harmful impurity in tail gas.

Description

Technical Field

[0001] This utility model relates to the field of fuel liquid heater technology, specifically a low-power clean fuel liquid heater. Background Technology

[0002] To use a fuel liquid heater to preheat the engine and heat the cab, users can save time preheating the engine in winter and heat the cab without running the engine while the vehicle is parked. The existing new structure generally includes an engine head assembly, combustion chamber, heat exchanger and control system. However, similar heaters have drawbacks such as poor combustion effect, low exhaust gas quality, low intelligence in operation, unreasonable size, and inconvenient maintenance. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a low-power clean fuel liquid heater, which solves the problems of poor combustion effect, low exhaust gas quality, and unreasonable size.

[0004] To solve the above problems, this utility model achieves the following technical solution: a low-power clean fuel liquid heater, comprising: a head assembly, a combustion chamber fixedly connected inside the head assembly, a heat exchanger sleeved on the outer wall of the combustion chamber, a control system fixedly connected to the upper outer wall of the head assembly, and an outer casing fixedly connected to the upper part of the outer wall of the heat exchanger on the side away from the head assembly; the head assembly includes a brushless motor, a combustion-supporting fan fixedly connected to the outer wall of the output end of the brushless motor, a motor support fixedly connected to the outer wall of the brushless motor, a fan cover fixedly connected to the outer wall of the motor support, an intermediate support fixedly connected to the outer wall of the motor support, and a heat exchanger fixedly connected to the intermediate support by bolts. The stable connection between the components helps to ensure the stability of the overall structure during operation. The combustion-supporting fan provides sufficient air for combustion, which is beneficial to improving combustion efficiency. The application of protective components such as the outer casing reduces the impact of external factors on internal components and extends the service life of the equipment.

[0005] Preferably, the outer wall of the combustion chamber is fitted with a heat exchanger inner sleeve, the interior of the intermediate support is fixedly connected to a combustion chamber cover, the outer wall of the combustion chamber cover is fitted with a primary combustion chamber, the outer wall of the primary combustion chamber is fixedly connected to a combustion chamber inlet guide flange, the combustion chamber is fixed to the heat exchanger inner sleeve via the combustion chamber inlet guide flange, an ignition sensor is fixedly connected to the outer wall above the combustion chamber inlet guide flange, a glow plug is fixedly connected to the interior of the combustion chamber cover, the glow plug extends out of the inner wall of the combustion chamber cover and is located above the combustion chamber inlet guide flange, an oil inlet pipe is connected through the outer wall above the combustion chamber cover, and the ignition sensor is installed near the exhaust pipe. The ignition sensor is used to monitor the operating status of the fuel liquid heater. The combustion chamber cover and the primary combustion chamber enable air to enter the combustion chamber more evenly, which is conducive to complete fuel combustion. The setting of the ignition sensor can promptly grasp the operating status of the equipment, making it convenient to take timely countermeasures when abnormalities occur. The reasonable layout of each component helps to improve fuel combustion efficiency and reduce energy waste.

[0006] Preferably, the heat exchanger is located at the tail end of the fuel liquid heater. The heat exchanger is fixedly connected to the intermediate support member by bolts. An inner heat exchanger sleeve is fitted onto the outer wall of the heat exchanger. An inlet pipe and an outlet pipe are connected through the outer wall above the inner heat exchanger sleeve. A water pipe pressure plate is fixedly connected to the outer wall above the inner heat exchanger sleeve. An outer heat exchanger sleeve is fixedly connected to the outer wall of the inner heat exchanger sleeve on the side away from the heat exchanger. A sensor pressure plate is fixedly connected to the outer wall above the outer heat exchanger sleeve. A water temperature sensor and an overheat sensor are fixedly connected to the outer wall above the outer heat exchanger sleeve. The inlet pipe and the outlet pipe are fixed to the outer wall above the inner heat exchanger sleeve by the water pipe pressure plate. The water temperature sensor and overheat sensor are fixed to the outer wall above the heat exchanger jacket via sensor clamps. The inlet and outlet water pipes are connected to external pipelines to form a circulation loop. The water temperature sensor monitors the outlet water temperature of the fuel liquid heater, and the overheat sensor monitors for excessively high temperatures inside the heat exchanger jacket. The circulation loop enables heat transfer and exchange, improving the heating effect of the equipment. The use of water pipe clamps and sensor clamps ensures the stability of the connections between related components, reducing the possibility of loosening. The monitoring functions of the water temperature sensor and overheat sensor help ensure the safe operation of the equipment and avoid adverse effects caused by abnormal temperatures.

[0007] Preferably, a controller support is fixedly connected to the outer wall above the motor support, and a controller cover is fixedly connected to the outer wall above the controller support. A control system is fixedly connected inside the controller cover, and an ECU wiring harness extending out of the controller cover is fixedly connected to the outer wall below the control system. The ECU wiring harness is connected to an external power supply. The heat exchanger, motor support, brushless motor, ignition sensor, water temperature sensor, and overheat sensor are connected to the ECU via wires through corresponding holes on the controller cover and exchange data with the ECU in the system. The outer casing is fixed to the fuel liquid heater by the snaps on the heat exchanger jacket and the outer wall of the intermediate support. The control system and each component exchange data through the ECU, which is beneficial for regulating the overall operation of the equipment and improving the working performance of the equipment. The snap connection method makes the installation and maintenance of the outer casing more convenient. The reasonable circuit connection and layout ensure the stability and reliability of the power supply to the equipment, providing a guarantee for the continuous operation of the equipment.

[0008] This invention provides a low-power, clean-type fuel oil liquid heater. It has the following beneficial effects: (i) This low-power clean fuel liquid heater introduces combustion air through a combustion fan, which is then guided to the combustion chamber by the combustion chamber intake guide flange. The air is then distributed into a uniform airflow through the combustion chamber cover and the first-stage combustion chamber, providing sufficient and evenly distributed combustion air for fuel combustion. During the fuel combustion stage, the glow plug heats the fuel-air mixture to ensure that it burns completely after reaching the ignition point. At the same time, the ignition sensor monitors the combustion status in real time. Once an abnormality is detected, it is fed back to the control system through the ECU, and the operating parameters are adjusted in time to maintain stable combustion. This multi-component collaborative combustion control method reduces the residue caused by incomplete combustion of fuel, which not only improves the fuel combustion efficiency but also reduces the content of harmful impurities in the exhaust gas.

[0009] (II) This low-power clean fuel liquid heater achieves a reduction in size by optimizing the layout and connection of its components. The length is reduced from 235mm to 222mm, and the width is reduced from 120mm to 92mm. The smaller size reduces the space requirements during installation, allowing for more flexible installation in compact scenarios such as small machinery and vehicle auxiliary heating systems, thus improving the rationality of installation. At the same time, the modular design of the components, such as the outer shell, is secured with clips for quick disassembly and installation. Key components, such as water temperature sensors and overheat sensors, are secured with pressure plates, resulting in a clear structure and stable connections. During later maintenance, staff can more easily access the components that need to be inspected or replaced, reducing the complexity of maintenance operations, improving the convenience of later maintenance, and lowering maintenance costs and time costs. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the combustion chamber of this utility model; Figure 4 This is a schematic diagram of the overall circuit structure of this utility model; Figure 5 This is a schematic diagram of the overall process of this utility model.

[0011] In the diagram: 1. Engine head assembly; 2. Combustion chamber; 3. Heat exchanger; 4. Control system; 5. Motor support; 6. Intermediate body support; 7. Brushless motor; 8. Combustion fan; 9. Fan shroud; 10. Combustion chamber cover; 11. Combustion chamber intake guide flange; 12. Glow plug; 13. Ignition sensor; 14. Fuel inlet pipe; 15. First-stage combustion chamber; 16. Outer casing; 17. Inner jacket of heat exchanger; 18. Outer jacket of heat exchanger; 19. Water inlet pipe; 20. Water outlet pipe; 21. Water temperature sensor; 22. Overheat sensor; 23. Water pipe pressure plate; 24. Sensor pressure plate; 25. ECU; 26. ECU wiring harness; 27. Controller top cover; 28. Controller support. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0013] Please see Figure 1-5 This utility model provides a low-power clean fuel liquid heater technical solution, including: a head assembly 1, a combustion chamber 2 fixedly connected inside the head assembly 1, a heat exchanger 3 sleeved on the outer wall of the combustion chamber 2, a control system 4 fixedly connected to the upper outer wall of the head assembly 1, and an outer shell cover 16 fixedly connected to the upper part of the outer wall of the heat exchanger 3 away from the head assembly 1; the head assembly 1 includes a brushless motor 7, a combustion fan 8 fixedly connected to the outer wall of the output end of the brushless motor 7, a motor support 5 fixedly connected to the outer wall of the brushless motor 7, a fan cover 9 fixedly connected to the outer wall of the motor support 5, an intermediate support 6 fixedly connected to the outer wall of the motor support 5, and the heat exchanger 3 fixedly connected to the intermediate support 6 by bolts.

[0014] The outer wall of the combustion chamber 2 is fitted with a heat exchanger inner sleeve 17. The combustion chamber cover 10 is fixedly connected to the inside of the intermediate support 6. The outer wall of the combustion chamber cover 10 is fitted with a primary combustion chamber 15. The outer wall of the primary combustion chamber 15 is fixedly connected with a combustion chamber intake guide flange 11. The combustion chamber 2 is fixed to the heat exchanger inner sleeve 17 through the combustion chamber intake guide flange 11. An ignition sensor 13 is fixedly connected to the outer wall above the combustion chamber intake guide flange 11. A glow plug 12 is fixedly connected to the inside of the combustion chamber cover 10. The glow plug 12 extends out of the inner wall of the combustion chamber cover 10 and is located above the combustion chamber intake guide flange 11. An oil inlet pipe 14 is connected through the outer wall above the combustion chamber cover 10. The ignition sensor 13 is installed near the exhaust pipe and is used to monitor the operating status of the fuel liquid heater.

[0015] The heat exchanger 3 is located at the tail end of the fuel liquid heater. The heat exchanger 3 is fixedly connected to the intermediate support 6 by bolts. The outer wall of the heat exchanger 3 is fitted with a heat exchanger inner sleeve 17. The outer wall above the heat exchanger inner sleeve 17 is connected to an inlet pipe 19 and an outlet pipe 20. A water pipe pressure plate 23 is fixedly connected to the outer wall above the heat exchanger inner sleeve 17. A heat exchanger outer sleeve 18 is fixedly connected to the outer wall of the heat exchanger inner sleeve 17 on the side away from the heat exchanger 3. A sensor pressure plate 24 is fixedly connected to the outer wall above the heat exchanger outer sleeve 18. Water temperature sensor 21 and overheat sensor 22 are fixedly connected to the outer wall of the heat exchanger. Water inlet pipe 19 and water outlet pipe 20 are fixed to the outer wall above the inner jacket 17 of the heat exchanger via water pipe clamping plate 23. Water temperature sensor 21 and overheat sensor 22 are fixed to the outer wall above the outer jacket 18 of the heat exchanger via sensor clamping plate 24. Water inlet pipe 19 and water outlet pipe 20 are connected to external pipelines to form a circulation loop. Water temperature sensor 21 is responsible for monitoring the outlet water temperature of the fuel liquid heater, and overheat sensor 22 is responsible for monitoring the overheating of the inner jacket 17 of the heat exchanger.

[0016] A controller support 28 is fixedly connected to the outer wall above the motor support 5. A controller cover 27 is fixedly connected to the outer wall above the controller support 28. A control system 4 is fixedly connected inside the controller cover 27. An ECU wiring harness 26 extending out of the controller cover 27 is fixedly connected to the outer wall below the control system 4. The ECU wiring harness 26 is connected to an external power supply. The heat exchanger 3, motor support 5, brushless motor 7, ignition sensor 13, water temperature sensor 21, and overheat sensor 22 are connected to the ECU 25 through the corresponding holes of the controller cover 27 using wires, and exchange data with the ECU 25 in the system. The outer casing 16 is fixed to the fuel liquid heater through the buckles of the heat exchanger outer casing 18 and the buckles of the outer wall of the intermediate support 6.

[0017] During operation, during the equipment startup phase, the external power supply powers the control system 4 and ECU 25 via the ECU wiring harness 26. After receiving the startup signal, the control system 4 sends instructions to each associated component. At this time, the brushless motor 7 starts to operate under the stable support of the motor support 5. Its output drives the combustion fan 8 to rotate synchronously. The fan cover 9 protects the combustion fan 8 to prevent external impurities from interfering with its operation. During the operation of the combustion fan 8, external air is introduced. The air is first guided by the combustion chamber intake guide flange 11, and then split into a uniform airflow through the combustion chamber cover 10 and the first-stage combustion chamber 15. It is stably delivered to the combustion chamber 2 inside the engine head assembly 1 to reserve sufficient combustion air for subsequent fuel combustion. The motor support 5 is connected to the controller support 28 to provide an installation position for the controller cover 27. At the same time, the controller cover 27 provides protection for the control system 4 to prevent damage to the control system 4 from external factors.

[0018] Next, the fuel combustion stage begins. The fuel inlet pipe 14 delivers fuel to the inside of the combustion chamber cover 10, and then the fuel flows into the combustion chamber 2. At the same time, the control system 4 controls the glow plug 12 to be energized and heated. The part of the glow plug 12 extending above the intake guide flange 11 of the combustion chamber releases heat to heat the fuel-air mixture in the combustion chamber 2 until it reaches the ignition point and starts combustion. During this process, the ignition sensor 13 installed near the exhaust pipe monitors the combustion status in real time and converts the operating information such as whether the combustion is stable and whether there is flameout into data signals, which are transmitted to the control system 4 through the connection with the ECU 25. If an abnormal combustion is detected, the control system 4 can adjust the operating parameters of relevant components in a timely manner to ensure the stability of the combustion process.

[0019] The next stage is the heat exchange stage. The high-temperature heat generated by the combustion of fuel in the combustion chamber 2 is transferred through the outer wall of the combustion chamber 2 to the heat exchanger 3 installed on the outside. At the same time, the inner sleeve 17 of the heat exchanger further wraps the outer sleeve 18 of the heat exchanger, forming a channel for heat accumulation and transfer. At this time, the external pipeline delivers the liquid to be heated to the space between the inner sleeve 17 and the outer sleeve 18 of the heat exchanger through the water inlet pipe 19. The liquid to be heated comes into contact with the high-temperature heat exchanger 3 in this space, absorbs heat and its temperature rises. The heated liquid flows out through the water outlet pipe 20, forming a circulation loop with the external pipeline. This continuously realizes the heat exchange process of low-temperature liquid entering, absorbing heat and rising in temperature, and then flowing out as high-temperature liquid, thus completing the heating of the target medium. During this process, the water pipe pressure plate 23 ensures that the connection between the water inlet pipe 19 and the water outlet pipe 20 on the inner sleeve 17 of the heat exchanger, avoiding liquid leakage that would affect the heat exchange efficiency.

[0020] Finally, in the operation monitoring and control stage, the water temperature sensor 21 and the overheat sensor 22 installed on the heat exchanger jacket 18, under the fixing action of the sensor pressure plate 24, monitor key parameters respectively. The water temperature sensor 21 collects the temperature of the liquid flowing out of the water outlet pipe 20 in real time and transmits the temperature data to the ECU 25. The control system 4 adjusts the combustion intensity according to the data to keep the outlet water temperature within a reasonable range. The overheat sensor 22 monitors the temperature of the heat exchanger inner jacket 17. If the temperature of the heat exchanger inner jacket 17 is too high due to abnormal conditions, the overheat sensor 22 will immediately send a warning signal to the ECU 25. After receiving the signal, the control system 4 can trigger protection measures such as shutdown or reduction of combustion power to avoid damage to the equipment due to overheating. At the same time, the outer shell cover 16 is fixed to the outer wall of the intermediate support 6 through the buckle of the heat exchanger jacket 18, forming a protection for the tail of the equipment and heat exchange-related components, reducing the interference of the external environment on the internal heat exchange and component operation of the equipment, and ensuring the long-term stable operation of the overall equipment.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low-power, clean-type fuel oil liquid heater, characterized in that, include: The engine head assembly (1) has a combustion chamber (2) fixedly connected inside it. The outer wall of the combustion chamber (2) is fitted with a heat exchanger (3). The outer wall above the engine head assembly (1) is fixedly connected with a control system (4). The outer wall of the heat exchanger (3) away from the engine head assembly (1) is fixedly connected with an outer shell cover (16). The head assembly (1) includes a brushless motor (7), a combustion fan (8) is fixedly connected to the outer wall of the output end of the brushless motor (7), a motor support (5) is fixedly connected to the outer wall of the brushless motor (7), a fan cover (9) is fixedly connected to the outer wall of the motor support (5), an intermediate support (6) is fixedly connected to the outer wall of the motor support (5), and a heat exchanger (3) is fixedly connected to the intermediate support (6) by bolts.

2. The low-power clean-type fuel oil liquid heater according to claim 1, characterized in that: The outer wall of the combustion chamber (2) is fitted with a heat exchanger inner sleeve (17). The combustion chamber cover (10) is fixedly connected inside the intermediate support (6). The outer wall of the combustion chamber cover (10) is fitted with a primary combustion chamber (15). The outer wall of the primary combustion chamber (15) is fixedly connected with a combustion chamber inlet guide flange (11). The combustion chamber (2) is fixed to the heat exchanger inner sleeve (17) by the combustion chamber inlet guide flange (11). An ignition sensor (13) is fixedly connected to the outer wall above the combustion chamber cover (10). A glow plug (12) is fixedly connected inside the combustion chamber cover (10). The glow plug (12) extends out of the inner wall of the combustion chamber cover (10) and is located above the combustion chamber intake guide flange (11). An oil inlet pipe (14) is connected through the outer wall above the combustion chamber cover (10). The ignition sensor (13) is installed near the exhaust pipe. The ignition sensor (13) is used to monitor the operating status of the fuel liquid heater.

3. A low-power clean-type fuel oil liquid heater according to claim 2, characterized in that: The heat exchanger (3) is located at the tail of the fuel liquid heater. The heat exchanger (3) is fixedly connected to the intermediate support (6) by bolts. The outer wall of the heat exchanger (3) is fitted with a heat exchanger inner sleeve (17). The outer wall above the heat exchanger inner sleeve (17) is connected to an inlet pipe (19) and an outlet pipe (20). The outer wall above the heat exchanger inner sleeve (17) is fixedly connected to a water pipe pressure plate (23). The outer wall of the heat exchanger inner sleeve (17) away from the heat exchanger (3) is fixedly connected to a heat exchanger outer sleeve (18). The outer wall above the heat exchanger outer sleeve (18) is fixedly connected to a sensor pressure plate (24). 18) A water temperature sensor (21) and an overheat sensor (22) are fixedly connected to the outer wall above. The water inlet pipe (19) and the water outlet pipe (20) are fixed to the outer wall above the inner sleeve of the heat exchanger (17) by the water pipe pressure plate (23). The water temperature sensor (21) and the overheat sensor (22) are fixed to the outer wall above the outer sleeve of the heat exchanger (18) by the sensor pressure plate (24). The water inlet pipe (19) and the water outlet pipe (20) are connected to the external pipeline to form a circulation loop. The water temperature sensor (21) is responsible for monitoring the outlet water temperature of the fuel liquid heater. The overheat sensor (22) is responsible for monitoring the overheating of the inner sleeve of the heat exchanger (17).

4. A low-power clean-type fuel oil liquid heater according to claim 1, characterized in that: The controller support (28) is fixedly connected to the outer wall above the motor support (5). The controller cover (27) is fixedly connected to the outer wall above the controller support (28). The control system (4) is fixedly connected inside the controller cover (27). The ECU wiring harness (26) extending out of the controller cover (27) is fixedly connected to the outer wall below the control system (4). The ECU wiring harness (26) is connected to an external power supply. The heat exchanger (3), motor support (5), brushless motor (7), ignition sensor (13), water temperature sensor (21), and overheat sensor (22) are connected to the ECU (25) through the corresponding holes of the controller cover (27) using wires, and exchange data with the ECU (25) in the system. The outer shell cover (16) is fixed to the fuel liquid heater through the buckle of the heat exchanger outer jacket (18) and the buckle of the intermediate support (6).

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