CN218379393U - Plateau type jet liquid heater with external gear pump - Google Patents
Plateau type jet liquid heater with external gear pump Download PDFInfo
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- CN218379393U CN218379393U CN202222879047.2U CN202222879047U CN218379393U CN 218379393 U CN218379393 U CN 218379393U CN 202222879047 U CN202222879047 U CN 202222879047U CN 218379393 U CN218379393 U CN 218379393U
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Abstract
The embodiment of the utility model provides a high prototype jet type liquid heater of external gear pump, including combustion head assembly, controller, combustion chamber, heat exchanger, water pump assembly, oil feeding system, its characterized in that, gear pump series connection advance oil feeding system in, it is external for the combustion head assembly, sets up constant speed motor independent connection gear pump, brushless buncher independent connection air intake fan. The gear pump is arranged externally, the constant-speed motor is used for driving independently, and the brushless speed-regulating motor is used for driving the air inlet fan independently. The purposes of improving the rotating speed of the air inlet fan, improving the air input, ensuring combustion and oxygen supply, reducing the rotating speed of the air inlet fan at low temperature, reducing the air inlet flow speed and improving the ignition condition under the plateau are achieved. The oil way from the gear pump to the oil nozzle and the oil nozzle are heated to heat the fuel oil, so that the viscosity of the fuel oil at low temperature is reduced, the atomization condition of the fuel oil is improved, the ignition and normal combustion of the heater at low temperature are facilitated, and the condition that the heater burns black smoke at low temperature is improved.
Description
Technical Field
The utility model relates to a high prototype of external gear pump sprays formula liquid heater.
Background
The existing injection type liquid heater drives a gear pump and an air inlet fan inside the heater through the same motor, and the motor drives the air inlet fan to blow combustion air into the heater and drives the gear pump to inject fuel into an inner cavity of the heater.
In the prior art, the air inlet fan and the gear pump are driven by the same motor at the same time, the speed of the motor is limited by the rated speed of the gear pump, and the adjustable range of the speed of the motor is very small.
When the heater works at high altitude, the oxygen content in the air is low, and more oxygen is generally needed to be provided by increasing the rotating speed of the air inlet fan, but the rotating speed of the motor cannot be increased due to the limitation of the gear pump in the prior art, so that the rotating speed of the air inlet fan cannot be increased, and the plateau air inlet amount is insufficient. Often cause the heater to ignite the difficulty, smoke after starting or the oxygen suppliment is not enough after starting and can't continuous operation.
The heater starts at low temperature, and because of the low fuel temperature and the large viscosity, the fuel particles injected by the fuel injection nozzle are large, the fuel atomization is poor, the heater is difficult to start, and the reduction of the rotating speed of the air inlet fan is more favorable for ignition. However, the prior art is limited by the gear pump, and the rotating speed of the motor cannot be reduced too much. Because if the motor speed is below the gear pump minimum limit, fuel cannot be injected. The heater is difficult to ignite and emits black smoke when working after being ignited and started for many times.
The heater starts at low temperature, and because of low fuel temperature and high viscosity, fuel particles injected through the nozzle are large, fuel atomization is poor, and the heater is difficult to start. In the prior art, fuel is not heated, the viscosity of the fuel is reduced, and the atomization effect of the fuel is poor.
In conclusion, the injection type heater in the prior art has poor application capability at high altitude and low temperature.
SUMMERY OF THE UTILITY MODEL
The application provides a high prototype of external gear pump sprays formula liquid heater, can be used to the low temperature start-up of vehicle, generating set and passenger train heating etc.. The engine cylinder body of the vehicle and the cylinder body of the generator set are preheated by heating the cooling liquid, so that the viscosity of engine oil in the cylinder body is reduced, the starting resistance of the engine body is reduced, and the low-temperature starting of the vehicle and the generator set is assisted.
A plateau type jet liquid heater with an external gear pump comprises a combustion head assembly, a controller, a combustion chamber, a heat exchanger, a water pump assembly and an oil supply system. The gear pump is connected in series into the oil supply system, the gear pump is arranged externally relative to the combustion head assembly, the constant-speed motor is additionally arranged to be independently connected with the gear pump, and the brushless speed regulating motor which is originally connected with the gear pump and the air inlet fan is only independently connected with the air inlet fan.
The constant speed motor independently drives the gear pump, and the brushless speed regulating motor independently drives the air inlet fan. The purposes of improving the rotating speed of the air inlet fan, improving the air input, ensuring combustion and oxygen supply, reducing the rotating speed of the air inlet fan at low temperature, reducing the air inlet flow speed and improving the ignition condition under the plateau are achieved.
The combustion head assembly is used for providing required combustion air, the fuel of burning for the heater to be responsible for the ignition, by the aircraft nose cover clamshell at the heater head, inside the aircraft nose housing, on the axis, from the right side to left side install in proper order: the fuel injection device comprises an air inlet fan, a brushless speed regulating motor, a connecting body, a fuel injection nozzle base bracket, a fuel injection nozzle base (an igniter is also arranged at the edge of the fuel injection nozzle base) and a fuel injection nozzle;
the machine head cover is used for ensuring the air inlet direction, forming certain air pressure and an air field, and covering an air inlet fan and a brushless speed regulating motor in the machine head cover;
the air inlet fan is arranged on a rotating shaft of the brushless speed regulating motor and used for providing combustion-supporting air;
the brushless speed regulating motor is arranged at the left end of the connecting body and provides power for the air inlet fan;
the right end of the connecting body is provided with a brushless speed regulating motor, the left end of the connecting body is provided with an oil nozzle seat support, and the right end of the outer edge of the connecting body is provided with the outer edge of the machine head housing;
the nozzle base support is used for fixing the oil injection nozzle base;
the edge of the fuel injection nozzle seat is provided with an igniter for igniting the fuel injected into the combustion chamber by the fuel injection nozzle; the fuel injection nozzle is used for injecting and atomizing fuel.
The controller is arranged on the shell of the connecting body and used for controlling the orderly operation of all electric devices of the heater and is responsible for judging whether the heater has faults or not.
The combustion chamber is arranged at the left end of the outer edge of the connecting body, and surrounds the nozzle seat bracket, the oil spray nozzle seat and the igniter;
furthermore, the heat exchanger consists of heat conducting fins and a water jacket, is also arranged at the left end of the outer edge of the connecting body, surrounds the combustion chamber and is responsible for transferring the heat generated by the combustion of the fuel oil to the heated medium.
Furthermore, the water pump assembly comprises water pump motor and water pump, and the water pump is with water piping connection, and water pump motor drive water pump takes away heat, heating medium with the heat transfer medium pump income.
Further, the oil supply system is used for supplying fuel oil for the combustion of the heater and consists of a filter, a low-pressure oil pipe, a constant-speed motor, a mounting seat, a gear pump and a high-pressure oil pipe;
the filter is connected with the gear pump through a low-pressure oil pipe and is used for filtering fuel impurities to protect the gear pump;
the low-pressure oil pipe is used for conveying fuel oil into the gear pump;
the gear pump system is composed of the constant speed motor, the mounting seat and the gear pump, the constant speed motor and the gear pump are fixed on the mounting seat, and the constant speed motor drives the gear pump to suck fuel oil and pressurize the fuel oil, and then the fuel oil is conveyed to the fuel spray nozzle through the high-pressure oil pipe.
Furthermore, the oil circuit heating system is used for heating an oil circuit from the gear pump to an oil nozzle with the serial number of 9 and the oil nozzle at low temperature, and consists of a heating rod, a pipeline heater I, a pipeline heater II and the like, wherein the heating rod is used for heating the oil nozzle, and the pipeline heater I and the pipeline heater II are used for heating a high-pressure oil pipe; wherein the second shell of the pipeline heater is made of plastic materials and is used for preventing scalding.
The working mode of the invention is that a heater switch is started, a controller carries out self-checking, a fault alarm is carried out, a water pump motor is started to drive a water pump circulation water path before no fault occurs, and meanwhile, a constant speed oil pump motor is started to drive an external gear pump (the gear pump is provided with an electromagnetic valve) circulation oil path. And then the brushless speed regulating motor is started to drive the air inlet fan to suck combustion-supporting air, the igniter is powered after the rotating speed of the fan is stable, and then the gear pump electromagnetic valve is opened to pump high-pressure fuel oil into the combustion chamber through the fuel spray nozzle for atomization and injection. Finally, the heat exchange is carried out on the heating medium (usually antifreeze) through a heat exchanger.
When the high-altitude area works, the controller reads air oxygen content data through the oxygen sensor arranged in the controller, and the rotating speed of the brushless speed regulating motor is automatically adjusted to ensure that the combustion and oxygen supply of the heater are sufficient.
When the fuel injection device works at low temperature, the oil way heating system is automatically opened to preheat and continuously heat the high-pressure oil way and the fuel injection nozzle, the fuel atomization condition is improved, the heater is ensured to be successfully started, the starting efficiency is improved, and meanwhile, the situation that the fuel is insufficiently burnt to emit black smoke at low temperature is improved.
The utility model discloses a with the gear pump external, with the independent drive of constant speed motor, inside is with brushless adjustable speed motor independent drive inlet fan. The purposes of improving the rotating speed of the air inlet fan, improving air inflow, ensuring combustion and oxygen supply, reducing the rotating speed of the air inlet fan at low temperature, reducing the air inlet flow speed and improving the ignition condition under the plateau are achieved.
The utility model discloses a heat this section oil circuit and the fuel sprayer from gear pump to fuel sprayer and make the fuel heat up, reduce fuel viscosity under the low temperature, improve the fuel atomization situation, do benefit to ignition and normal combustion under the heater low temperature, improve heater low temperature combustion and emit black cigarette situation.
The gear pump is external, and the gear pump is independently driven by an external constant speed motor, and the built-in brushless speed regulating motor independently drives the air inlet fan.
And heating an oil path from the gear pump to the nozzle and the oil nozzle, and controlling the temperature of the heating.
Drawings
Figure 1 is a schematic view of the present invention,
fig. 2 is a schematic diagram of the present invention.
Detailed Description
As shown in the figure, the plateau type injection type liquid heater with the external gear pump mainly comprises a combustion head assembly, a controller 5, a combustion chamber 13, a heat exchanger, a water pump assembly, an oil supply system and an oil way heating system.
The combustion head assembly is used for providing combustion-supporting air and fuel oil required by combustion for the heater and is responsible for ignition, and comprises a machine head housing 1, an air inlet fan 2, a brushless speed regulating motor 3, a connecting body 4, an oil nozzle seat support 6, an igniter 7, an oil nozzle seat 8, an oil nozzle 9 and the like. The machine head encloser 1 is used for ensuring the air inlet direction and forming certain air pressure and air field; an air intake fan for providing combustion air; a brushless speed-regulating motor 3 for driving the intake fan 2; the connecting body 4 is used for fixing the machine head housing 1, the brushless speed regulating motor 3 and the oil nozzle seat bracket 6, and connecting the combustion chamber 13 and the water jacket 15; the nozzle holder bracket 6 is used for fixing the igniter 7 and the fuel injection nozzle holder 8; an igniter 7 for igniting the fuel injected into the combustion chamber 13; and the fuel injection nozzle 9 is used for injecting and atomizing fuel.
The controller 5 is used for controlling the orderly operation of all the electric devices of the heater and is responsible for judging whether the heater has faults or not.
The heat exchanger consists of heat conducting fins 14 and a water jacket 15 and is responsible for transferring heat generated by fuel combustion to a heated medium.
The water pump assembly is composed of a water pump motor 17 and a water pump 18, wherein the water pump motor 17 drives the water pump 18 to pump a heat exchange medium into the water jacket 15 to take away heat and a heating medium.
The oil supply system is used for providing fuel oil for the combustion of the heater and consists of a filter 16, a low-pressure oil pipe 20, a constant-speed motor 19, a mounting seat 21, a gear pump 22 and a high-pressure oil pipe 10; a filter 16 for filtering fuel impurities to protect the gear pump 22; a low pressure fuel line 20 for delivering fuel into a gear pump 22; the fixed speed motor 19, the mounting seat 21 and the gear pump 22 form a gear pump system, the fixed speed motor 19 and the gear pump 22 are fixed on the mounting seat 21, the fixed speed motor 19 drives the gear pump 22 to suck fuel oil and pressurize the fuel oil, and then the fuel oil is conveyed to the fuel injection nozzle 9 through the high-pressure oil pipe 10.
The oil circuit heating system is used for heating an oil circuit from the gear pump 22 to the oil nozzle 9 and the oil nozzle 9 at low temperature and comprises a heating rod 11, a first pipeline heater 12, a second pipeline heater 23 and the like, wherein the heating rod 11 is used for heating the oil nozzle 9, and the first pipeline heater and the second pipeline heater are used for heating the high-pressure oil pipe 10; the shell of the second pipeline heater 23 is made of plastic materials and used for preventing scalding. Meanwhile, the heating temperature is controlled by a temperature switch (or a temperature sensor) arranged below the fuel spray nozzle seat 8, and the heating is controlled to be started by an external environment temperature switch (or a temperature sensor) arranged at the air inlet end of the heater. Meanwhile, the heater can be started after the oil circuit is preheated according to the actual temperature condition.
When the high-altitude area works, the controller reads air oxygen content data through the oxygen sensor arranged in the controller, and the rotating speed of the brushless speed regulating motor is automatically adjusted to ensure that the combustion oxygen supply of the heater is sufficient.
When the fuel injection device works at low temperature, the oil way heating system is automatically opened to preheat and continuously heat the high-pressure oil way and the fuel injection nozzle, the fuel atomization condition is improved, the heater is ensured to be successfully started, the starting efficiency is improved, and meanwhile, the situation that the fuel is insufficiently burnt to emit black smoke at low temperature is improved.
Claims (8)
1. The plateau type jet liquid heater with the external gear pump comprises a combustion head assembly, a controller, a combustion chamber, a heat exchanger, a water pump assembly and an oil supply system and is characterized in that the gear pump is connected in series into the oil supply system, the gear pump is external relative to the combustion head assembly, a constant-speed motor is arranged to be independently connected with the gear pump, and a brushless speed-regulating motor is independently connected with an air inlet fan.
2. The heater of claim 1,
the combustion head assembly comprises a machine head housing, an air inlet fan, a brushless speed regulating motor, a connecting body, an oil nozzle seat support, an oil nozzle seat and an oil nozzle;
wherein, the aircraft nose cover housing is at the heater head, and inside the aircraft nose cover housing, on the axis, from the right side to left side install in proper order: the oil nozzle comprises an air inlet fan, a brushless speed regulating motor, a connecting body, an oil nozzle seat support, an oil nozzle seat and an oil nozzle, wherein an igniter is arranged at the edge of the oil nozzle seat;
the air inlet fan is arranged on a rotating shaft at the right end of the brushless speed regulating motor;
the brushless speed regulating motor is arranged at the right end of the connecting body;
the left end of the connecting body is provided with an oil nozzle seat bracket, and the right end of the outer edge of the connecting body is provided with the outer edge of the machine head housing;
the left end of the nozzle seat bracket is fixed with an oil nozzle seat and an igniter;
the left end of the fuel spray nozzle seat is provided with a fuel spray nozzle.
3. The heater of claim 2,
the controller is arranged on the connecting body shell and is connected with all electric devices of the heater;
the combustion chamber is arranged at the left end of the outer edge of the connecting body, surrounds the nozzle seat bracket, the oil spray nozzle seat and the igniter;
the heat exchanger is also arranged at the left end of the outer edge of the connecting body and surrounds the combustion chamber;
the water pump assembly is connected with the heat exchanger;
the oil supply system is connected with the oil nozzle.
4. The heater of claim 3, wherein the oil supply system comprises a filter, a low pressure oil line, a constant speed motor, a mounting seat, a gear pump, a high pressure oil line;
wherein, the filter is connected with the gear pump through a low-pressure oil pipe;
the low-pressure oil pipe is used for conveying fuel oil into the gear pump;
the fixed-speed motor and the gear pump are fixed on the mounting seat to form a gear pump system and are connected with the oil nozzle through a high-pressure oil pipe.
5. The heater of claim 4, wherein the heat exchanger includes heat transfer fins provided on an inner surface of the water jacket, and a water jacket installed at a left end of an outer edge of the coupling body.
6. The heater of claim 5, wherein the water pump assembly includes a water pump motor and a water pump, the water pump being connected to the water jacket by a water line.
7. The heater of claim 6, further comprising an oil path heating system mounted to the nozzle block and the high pressure oil line.
8. The heater of claim 7, wherein the oil circuit heating system comprises a heating rod, a first pipeline heater and a second pipeline heater, the heating rod is mounted on the fuel spray nozzle seat, the first pipeline heater and the second pipeline heater are mounted on the high-pressure fuel pipe, and a shell of the second pipeline heater is made of plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222879047.2U CN218379393U (en) | 2022-10-31 | 2022-10-31 | Plateau type jet liquid heater with external gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222879047.2U CN218379393U (en) | 2022-10-31 | 2022-10-31 | Plateau type jet liquid heater with external gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218379393U true CN218379393U (en) | 2023-01-24 |
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ID=84936463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222879047.2U Active CN218379393U (en) | 2022-10-31 | 2022-10-31 | Plateau type jet liquid heater with external gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218379393U (en) |
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2022
- 2022-10-31 CN CN202222879047.2U patent/CN218379393U/en active Active
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