CN220817736U - Plateau type jet type liquid heater with built-in gear pump - Google Patents
Plateau type jet type liquid heater with built-in gear pump Download PDFInfo
- Publication number
- CN220817736U CN220817736U CN202222879062.7U CN202222879062U CN220817736U CN 220817736 U CN220817736 U CN 220817736U CN 202222879062 U CN202222879062 U CN 202222879062U CN 220817736 U CN220817736 U CN 220817736U
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- Prior art keywords
- heater
- gear pump
- motor
- connecting body
- air inlet
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- 239000007788 liquid Substances 0.000 title claims abstract description 9
- 238000002485 combustion reaction Methods 0.000 claims abstract description 40
- 230000001105 regulatory effect Effects 0.000 claims abstract description 23
- 239000000446 fuel Substances 0.000 claims description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- 238000010438 heat treatment Methods 0.000 claims description 16
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 12
- 229910052760 oxygen Inorganic materials 0.000 abstract description 12
- 239000001301 oxygen Substances 0.000 abstract description 12
- 239000003921 oil Substances 0.000 description 36
- 239000000295 fuel oil Substances 0.000 description 9
- 238000000889 atomisation Methods 0.000 description 6
- 239000000779 smoke Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 230000002528 anti-freeze Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Abstract
The embodiment of the utility model provides a plateau type jet liquid heater with a built-in gear pump, which is characterized in that the gear pump is built in and independently driven by a constant-speed motor, and an air inlet fan is independently driven by a brushless speed regulating motor. The purposes of increasing the rotation speed of the air inlet fan at the plateau, increasing the air inflow, ensuring the combustion oxygen supply, reducing the rotation speed of the air inlet fan at low temperature, reducing the air inlet flow rate and improving the ignition condition are achieved.
Description
Technical Field
The utility model relates to a plateau type jet type liquid heater with a built-in gear pump.
Background
The existing jet 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 jet fuel oil into the inner cavity of the heater.
The existing jet liquid heater does not heat the fuel injected into the heater.
In the prior art, the air inlet fan and the gear pump are driven simultaneously by the same motor, and the motor is limited by the rated rotation speed of the gear pump, so that the adjustable range of the rotation speed of the motor is very small.
When the heater works at a high altitude, the oxygen content in the air is low, more oxygen is generally required to be provided by increasing the rotating speed of the air inlet fan, but the prior art is limited by the gear pump and cannot increase the rotating speed of the motor. Often causes the ignition difficulty of the heater, black smoke is emitted after the heater is started or oxygen supply is insufficient after the heater is started, and the heater cannot continuously run.
The heater is started at low temperature, and because the fuel temperature is low and the viscosity is high, the fuel particles sprayed by the fuel nozzle are large, the fuel atomization is poor, and the heater is difficult to start. At this time, the reduction of the rotation speed of the air inlet fan is more beneficial to ignition, but the prior art is limited by a gear pump, and the rotation speed of a motor cannot be reduced too much. A motor speed below the gear pump limit will not be able to eject fuel. Often causes the heater to fire difficultly, and black smoke is emitted when the heater works after the ignition is started for many times.
The heater is started at low temperature, and because the fuel temperature is low and the viscosity is high, the fuel particles sprayed through the nozzle are large, the fuel atomization is poor, and the heater is difficult to start. The prior art does not heat the fuel, reduces the viscosity of the fuel and improves the atomization state of the fuel.
In combination with the prior art jet heater, the jet heater has poor application capability at high altitude and low temperature.
Disclosure of utility model
The utility model provides a jet heater with a built-in gear pump, a constant-speed motor and a brushless speed-regulating motor, wherein the gear pump is independently driven by the constant-speed motor, and the jet heater is used for independently driving an air inlet fan, so that the purposes of improving the rotation speed of the air inlet fan, improving the air inlet amount to ensure combustion and oxygen supply at a plateau, reducing the rotation speed of the air inlet fan at a low temperature and reducing the air inlet flow rate and improving the ignition condition are achieved.
The utility model relates to a plateau type jet type liquid heater with a built-in gear pump, which 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 in the prior art is kept to be built in the combustion head assembly, a constant-speed motor is added 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 increasing the rotation speed of the air inlet fan at the plateau, increasing the air inflow, ensuring the combustion oxygen supply, reducing the rotation speed of the air inlet fan at low temperature, reducing the air inlet flow rate and improving the ignition condition are achieved.
Further, the brushless speed regulating motor and the constant speed motor are connected in series.
Further, the combustion head assembly is used for providing combustion air and fuel oil required by combustion for the heater and is responsible for ignition, and the combustion head assembly sequentially comprises a head housing, an air inlet fan, a brushless speed regulating motor, a constant speed motor, a connecting body, a gear pump, an oil nozzle seat, an igniter, an oil nozzle and the like from right to left.
The machine head housing is used for ensuring the air inlet direction, forming certain wind pressure and wind field and housing the air inlet fan and the brushless speed regulating motor therein;
The air inlet fan is arranged on a rotating shaft at the right end of the brushless speed regulating motor and is used for providing combustion air;
The brushless speed regulating motor and the constant speed motor are connected in series and then are arranged at the right end of the connecting body to provide power for the air inlet fan;
The fixed speed motor is arranged at the right end of the connecting body, and the shaft of the fixed speed motor penetrates through the inside of the connecting body and is connected with the gear pump, so that the gear pump is driven to suck fuel oil and convey the fuel oil to the fuel injection nozzle;
The right end of the connecting body is provided with a brushless speed regulating motor and a constant speed motor, the left end of the connecting body is provided with a gear pump, and the right end of the outer edge of the connecting body is provided with the outer edge of the machine head housing;
the oil nozzle seat is fixed on the left end of the gear pump and is used for fixing the igniter and the oil nozzle;
An igniter for igniting the fuel injected into the combustion chamber; and the fuel nozzle is used for injecting and atomizing fuel.
The controller is arranged on the shell of the connecting body and used for controlling each electric device of the heater to orderly operate and judging whether the heater has faults or not.
Further, the heat exchanger consists of heat conducting fins and a water jacket, and 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 of fuel combustion to a heated medium.
Further, the water pump assembly is composed of a water pump motor and a water pump, the water pump is connected with the water pipe, and the water pump motor drives the water pump to pump the heat exchange medium into the water pump to take away heat and heat the medium.
Further, the oil supply system is used for delivering fuel oil for the combustion of the heater and consists of a filter, a first low-pressure oil pipe, a second low-pressure oil pipe and a high-pressure oil pipe;
The filter is connected with the gear pump through the first low-pressure oil pipe and the second low-pressure oil pipe and is used for filtering fuel impurities to protect the gear pump;
The gear pump is connected with the oil nozzle through a high-pressure oil pipe and is used for conveying fuel oil to the oil nozzle.
Further, the nozzle heating system is used for heating the oil nozzle at low temperature, and consists of a heating rod, a temperature switch (or a temperature sensor) arranged below the oil nozzle seat, and an external environment temperature switch (or a temperature sensor) arranged at the air inlet end of the heater, wherein the temperature switch (or the temperature sensor) below the oil nozzle seat controls the heating temperature, and the external environment temperature switch (or the temperature sensor) controls the heating to be started. Meanwhile, the oil way can be preheated and then the heater can be started according to the actual temperature condition.
The invention has the working mode that the heater switch is started, the controller performs self-checking, the fault alarm is given, the water pump motor is started to drive the water pump circulation waterway without fault, and meanwhile, the constant-speed oil pump motor is started to drive the internal gear pump (the gear pump is provided with an electromagnetic valve) circulation waterway. And then starting the brushless speed regulating motor to drive the air inlet fan to suck combustion air, supplying power to the igniter after the rotation speed of the fan is stable, and then opening the electromagnetic valve of the gear pump to pump high-pressure fuel into the combustion chamber for ignition through atomization and injection of the fuel spray nozzle. Finally, the heat exchange medium (usually antifreeze) is carried out by the heat exchanger.
When the brushless speed regulating motor works in a high-altitude area, the controller reads the oxygen content data of the air through the oxygen sensor arranged in the controller, and the rotating speed of the brushless speed regulating motor is automatically regulated to ensure sufficient combustion and oxygen supply of the heater.
When the low-temperature oil-way heating system works, the oil-way heating system is automatically opened to preheat and continuously heat the oil nozzle, so that the fuel atomization condition is improved, the successful starting of the heater is ensured, the starting efficiency is improved, and meanwhile, the condition of insufficient combustion and black smoke emission at low temperature is improved.
Drawings
Figure 1 is a schematic diagram of a first embodiment of the present utility model,
FIG. 2 is a second embodiment of the present utility model.
Detailed Description
As shown in fig. 1, 2. A plateau type jet liquid heater with built-in gear pump is composed of combustion head assembly, controller 5, combustion chamber 14, heat exchanger, water pump assembly, fuel pipeline and nozzle heating system.
The combustion head assembly is used for providing combustion air and fuel oil required by combustion for the heater and is responsible for ignition, and consists of a machine head housing 1, an air inlet fan 2, a brushless speed regulating motor 3, a constant speed motor 4, a connecting body 6, a gear pump 7, an oil nozzle seat 8, an igniter 9 and an oil nozzle 10. The machine head housing 1 is used for ensuring the air inlet direction and forming certain wind pressure and wind field; an intake fan 2 for supplying combustion air; a brushless speed-regulating motor 3 for driving the intake fan 2; the constant-speed motor 4 is used for driving the gear pump 7 to suck fuel and convey the fuel to the fuel spray nozzle 10; the connecting body 6 is used for fixing the machine head housing 1, the brushless speed regulating motor 3, the constant speed motor 4 and the gear pump 7 and connecting the combustion chamber 14 and the water jacket; the oil nozzle seat 8 is fixed on the gear pump 7 and is used for fixing the igniter 9 and the oil nozzle 10; an igniter 9 for igniting the fuel injected into the combustion chamber 14; the fuel injector 10 is used for injecting and atomizing fuel.
The controller 5 is used for controlling each electric device of the heater to orderly operate and is responsible for judging whether the heater has faults or not.
The heat exchanger consists of heat conducting fins 15 and a water jacket 16 and is responsible for transferring the heat of fuel combustion to a heated medium.
The water pump assembly is composed of a water pump motor 18 and a water pump 19, wherein the water pump motor 18 drives the water pump 19 to pump heat exchange medium into the water jacket 16 to take heat and heat the medium.
The fuel oil pipeline is used for delivering fuel oil for the combustion of the heater and consists of a filter 17, a first low-pressure oil pipe 11, a second low-pressure oil pipe 20 and a high-pressure oil pipe 13; a filter 17 for filtering fuel impurities to protect the gear pump 7; the first low-pressure oil pipe 11 and the second low-pressure oil pipe 20 convey fuel to the gear pump 7, and the high-pressure oil pipe 13 conveys fuel to the fuel spray nozzle 10.
The nozzle heating system is used for heating the oil nozzle 10 at low temperature and consists of a heating rod 12, a temperature switch (or a temperature sensor) arranged below the oil nozzle seat 8 and an external environment temperature switch (or a temperature sensor) arranged at the air inlet end of the heater, wherein the temperature switch (or the temperature sensor) below the oil nozzle seat controls the heating temperature, and the external environment temperature switch (or the temperature sensor) controls the heating to be started. Meanwhile, the oil way can be preheated and then the heater can be started according to the actual temperature condition
The invention has the working mode that the heater switch is started, the controller 5 performs self-checking, the fault alarm is given, the water pump motor 18 is started to drive the water pump 19 circulation waterway without fault, and the constant-speed oil pump motor is started to drive the internal gear pump 7 (the gear pump 7 is provided with an electromagnetic valve) circulation waterway. And then the brushless speed regulating motor 3 is started to drive the air inlet fan to suck combustion air, the power is supplied to the igniter 9 after the rotation speed of the fan is stable, the electromagnetic valve of the gear pump 7 is opened to pump high-pressure fuel, and the high-pressure fuel is atomized and injected into the combustion chamber 14 through the fuel spray nozzle to be ignited. Finally, the heat exchange medium (usually antifreeze) is carried out by the heat exchanger.
When the brushless speed regulating motor works in a high-altitude area, the controller reads the oxygen content data of the air through the oxygen sensor arranged in the controller, and the rotating speed of the brushless speed regulating motor is automatically regulated to ensure sufficient combustion and oxygen supply of the heater.
When the low-temperature oil-way heating system works, the oil-way heating system is automatically opened to preheat and continuously heat the oil nozzle, so that the fuel atomization condition is improved, the successful starting of the heater is ensured, the starting efficiency is improved, and meanwhile, the condition of insufficient combustion and black smoke emission at low temperature is improved.
Claims (8)
1. A plateau type jet type liquid heater with built-in gear pump is composed of combustion head assembly, controller, combustion chamber, heat exchanger, water pump assembly and oil supply system, and features that a constant-speed motor is connected to gear pump, a brushless speed-regulating motor is connected to air inlet fan, and the gear pump is built-in the combustion head assembly.
2. The heater of claim 1, wherein the brushless speed motor and the constant speed motor are connected in series.
3. The heater of claim 2, wherein the combustion head comprises a head housing, an intake fan, a brushless speed motor, a constant speed motor, a coupling body, a gear pump, a fuel nozzle seat, an igniter, a fuel nozzle;
Wherein the machine head cover covers the head of the heater and covers the air inlet fan and the brushless speed regulating motor therein;
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 and the constant speed motor are connected in series and then are arranged at the right end of the connecting body;
The fixed speed motor is arranged at the right end of the connecting body, and the shaft of the fixed speed motor penetrates through the inside of the connecting body and is connected with the gear pump;
The right end of the connecting body is provided with a brushless speed regulating motor and a constant speed motor, the left end of the connecting body is provided with a gear pump, and the right end of the outer edge of the connecting body is provided with the outer edge of the machine head housing;
the oil nozzle seat is fixed on the left end of the gear pump, and the igniter and the oil nozzle are fixed;
and the left end of the oil nozzle seat is provided with an oil nozzle.
4. A heater according to claim 3, wherein,
The controller is arranged on the shell of the connecting body 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 oil nozzle seat and the igniter;
The heat exchanger is also arranged at the right 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.
5. The heater of claim 4, further comprising a heater rod mounted on the injector mount, i.e., a nozzle heating system.
6. A heater as claimed in claim 4 or claim 5 wherein the heat exchanger comprises a heat conducting fin provided on an inner surface of the water jacket, the water jacket being mounted to the left end of the outer rim of the coupling body.
7. The heater of claim 6, 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 pipe.
8. The heater of claim 7, wherein the oil supply system comprises a filter, a first low pressure oil pipe, a second low pressure oil pipe, and a high pressure oil pipe;
the filter is connected with the gear pump through the first low-pressure oil pipe and the second low-pressure oil pipe;
The gear pump is connected with the oil nozzle through a high-pressure oil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222879062.7U CN220817736U (en) | 2022-10-31 | 2022-10-31 | Plateau type jet type liquid heater with built-in gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222879062.7U CN220817736U (en) | 2022-10-31 | 2022-10-31 | Plateau type jet type liquid heater with built-in gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220817736U true CN220817736U (en) | 2024-04-19 |
Family
ID=90701379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222879062.7U Active CN220817736U (en) | 2022-10-31 | 2022-10-31 | Plateau type jet type liquid heater with built-in gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220817736U (en) |
-
2022
- 2022-10-31 CN CN202222879062.7U patent/CN220817736U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |