CN216811964U

CN216811964U - High-power fuel oil auxiliary heating device for large-scale equipment power system

Info

Publication number: CN216811964U
Application number: CN202220134789.XU
Authority: CN
Inventors: 于德昌; 侯彦彪; 孙宝琛; 季国宏; 房学龙; 霍士伟; 高远远; 信敬贵; 薛志畅; 杜鹏
Original assignee: Chinese People's Liberation Army 31690 Army
Current assignee: Chinese People's Liberation Army 31690 Army
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-06-24
Anticipated expiration: 2032-01-19

Abstract

The utility model relates to a high-power fuel auxiliary heating device for a large-scale equipment power system, and belongs to the field of fault detection and emergency repair of the large-scale equipment power system. The warmer assembly and the electric oil transfer pump are arranged in the main box body, the control box and the fuel tank are respectively arranged on the upper portion of the main box body, an oil filling port is formed in the upper portion of the fuel tank, an oil return port and an oil outlet are formed in the bottom of the fuel tank, the oil outlet is sequentially connected with the electric oil transfer pump, the fuel filter and the fuel pump of the warmer assembly through pipelines, and the oil return port is connected with a flat connector oil return pipe on the overflow pressure regulating valve through a pipeline. Has the advantages that: the idea is ingenious, has avoided the problem that the starter motor was dismantled repeatedly, realizes the automatic control process of heating, saves time, laborsaving, reduces the manpower and materials consumption that the engine was dismantled repeatedly and is brought, and especially during emergency repair, the on-vehicle heating device of physics separation heats the system and heats for engine body and lubricating oil with the auxiliary heating device temporary access cooling, reaches the starting condition, accords with the demand that large-scale equipment engine trouble emergency repair.

Description

High-power fuel oil auxiliary heating device for large-scale equipment power system

Technical Field

The utility model relates to the field of fault detection and emergency repair of a power system of large-scale equipment, in particular to a high-power fuel auxiliary heating device for the power system of the large-scale equipment.

Background

Before the engine of the large-scale crawler equipment is started, the engine body needs to be heated and preheated to 60 ℃ by a vehicle-mounted heating device, so that the mechanical performance of each part of the engine body and the clearance of a main friction pair reach the optimal state, and the temperature and the lubricating conditions of lubricating oil reach the use regulations. When the power and transmission device is in failure, the engine needs to be detected before repair or checked after repair, if the engine is forcibly started without being heated and preheated fully, the fit clearance and the lubricating condition of each part of the engine do not reach the standard, so that the starting difficulty is easily caused, the part abrasion is aggravated, and the technical requirements for use and the repair specifications are not met.

At present, when the equipment is used and repaired, the condition that the engine cannot be heated and preheated and is forcibly started or restarted sometimes happens because a vehicle-mounted heating device breaks down; when the repaired power and transmission device is repaired and tested, the vehicle-mounted heating device is used for heating and preheating the engine body, then the engine is started to carry out repair and test, if the fault is not eliminated, the processes of disassembly, maintenance, lifting and detection need to be repeated, and the time-consuming and labor-consuming repair and test mode is still a normal state.

The existing detection method for the power and transmission device and the dependence on the vehicle-mounted heating device during heating and preheating the engine before starting lead to frequent disassembly and assembly of the power and transmission device during maintenance of the power and transmission device, which can bring the following disadvantages:

1. time and labor are wasted, and the consumption of materials and equipment is increased. Because the power transmission device can not be repeatedly disassembled and assembled due to the fact that the engine can not be heated and preheated when the vehicle body is away from the vehicle body, not only is the waste of manpower, material resources and financial resources caused, but also great potential safety hazards exist.

2. And the low-temperature starting has more harm. When the vehicle-mounted heating device is in emergency or does not have the dismounting condition, the engine is damaged or abnormally abraded due to the fact that the vehicle-mounted heating device is damaged and is started forcibly at a low temperature, and the service life of the engine is influenced.

Therefore, it is necessary to manufacture a high-power fuel auxiliary heating device for a large-scale equipment power system, and the engine body can be heated and preheated to reach the starting condition even if the power transmission device is not installed in a vehicle.

Disclosure of Invention

The utility model aims to provide a high-power fuel auxiliary heating device for a large equipment power system, which solves the problems in the prior art. The utility model can ensure that the engine can be normally started in a state of leaving the vehicle body, and can solve the problem of inconvenient inspection, detection and maintenance. Meanwhile, in emergency repair of the vehicle-mounted heating device which fails to heat and preheat the engine body normally, the power transmission device is not detached, the power transmission device is temporarily connected into a cooling and heating system of the power and transmission device, the heating and the preheating of the engine body are realized, and the standard starting of equipment is realized.

The above object of the present invention is achieved by the following technical solutions:

the high-power fuel auxiliary heating device for the large-scale equipment power system comprises a main box body 1, a control box 2 of a control system, a heater assembly 3, an electric fuel delivery pump 4 and a fuel tank 5, wherein the heater assembly 3 and the electric fuel delivery pump 4 are installed inside the main box body 1, the control box 2 and the fuel tank 5 are respectively installed on the upper part of the main box body 1, the upper part of the fuel tank 5 is provided with an oil filling port 6, the bottom of the fuel tank 5 is provided with an oil return port 7 and an oil outlet 8, the oil outlet 8 is sequentially connected with the electric fuel delivery pump 4, the fuel filter 14 and a fuel pump 11 of the heater assembly 3 through pipelines, and the oil return port 7 is connected with a flat joint oil return pipe 34 on an overflow pressure regulating valve 13 through a pipeline; the touch screen 9 is installed on the cover plate of the main box body 1.

The pump set of the warmer assembly 3 is integrated by the fuel pump 11, pump set motor 33, centrifugal air pump 16, centrifugal water pump 17, the centrifugal air pump 16 and centrifugal water pump 17 are coaxial integrative pumps, there is a partition wall to separate in the middle, there are air intakes on one side of the centrifugal air pump 16, the underpart has air duct pipelines to communicate with combustion chamber 28; the pump set motor 33 is a power source of the pump set and is positioned between the fuel pump 11 and the centrifugal air pump 16 and between the fuel pump 11 and the centrifugal water pump 17, the fuel pump 11 is fixed at the left end of the pump set motor 33, the fuel pump 11 is rigidly connected with the pump set motor 33 through a coupler, the pump set motor 33 is fixed at the left end of the centrifugal air pump 16, and the right end of an armature shaft of the pump set motor 33 is rigidly connected with the centrifugal air pump 16 and the centrifugal water pump 17 through spline sleeves.

An overflow pressure regulating valve 13 is arranged at an oil outlet of the

fuel pump

11, 2 flat joint oil pipes are sequentially arranged on the overflow pressure regulating valve 13 and are tightly pressed by a cap nut to form a closed oil path; a flat joint oil outlet pipe is arranged close to the pump body of the fuel pump 11, and a fuel gas discharge screw 12 and an oil pipe leading to an electromagnetic valve 15 are arranged on the side surface; the upper flat joint oil pipe is a flat joint oil return pipe 34 and is positioned at the position of the valve body of the overflow pressure regulating valve 13; the interlayer of the warming pan body 25 is a pan body inner container and contains cooling liquid, the cooling liquid is connected with an engine cooling and warming system through a water pump inlet pipe 20 of a centrifugal water pump 17, and the cooling liquid is connected with the engine cooling and warming system through the water pump inlet pipe 20, the centrifugal water pump 17, a water pump outlet pipe 18, a warming pan inlet pipe 26 and a warming pan outlet pipe 22 under the drive of a pump set motor 33; a flow sensor 19 is installed on a water inlet pipe 20 of a water pump, a pressure sensor 21 and a temperature sensor 23 are installed on a water outlet pipe 22 of a warming pot, and a flame temperature sensor 29 is installed at a flame inspection port of a combustion chamber 28.

The fuel pump 11, the pump set motor 33, the centrifugal air pump 16 and the centrifugal water pump 17 form a warmer pump set, heat generated by fuel combustion is subjected to heat exchange with cooling liquid in an interlayer of the warming pot body 25, the cooling liquid is forced to circulate in a cooling and warming system through the pump set, and power and a transmission device are warmed.

Control box 2 inside be equipped with analog quantity collector 42, overcurrent protection module 43, smart electric master switch 44, voltage stabilizing module 45, PLC controller 46, relay group 47, terminal block 48, analog quantity collector 42 links to each other with PLC controller 46, voltage stabilizing module 45, overcurrent protection module 43, smart electric master switch 44 link to each other in proper order, terminal block 48, relay group 47, PLC controller 46 link to each other in proper order, be equipped with glow plug power supply relay 36, operation power supply relay 37, start power supply relay 38, direct current step-down resistance 39 and be connected with control box 2 respectively at the left surface of main tank 1.

The fuel tank 5 is connected with the fuel pump 11 of the warmer assembly 3, and sprays atomized diesel oil into the combustion chamber 28 in real time through the fuel spray nozzle 31, and mixes with the air sent by the centrifugal air pump 16 to form combustible mixed gas, and the combustible mixed gas is ignited and combusted through the ignition glow plug 30 to heat the warming pan body 25.

The fuel tank 5, the electric fuel delivery pump 4, the fuel filter 14, the fuel pump 11 and the fuel spray nozzle 31 are sequentially connected through oil pipes to form a closed oil path supply system, and the oil supply condition of independent use is met.

The utility model has the beneficial effects that: compared with the prior art, this a high-power fuel auxiliary heating device for large-scale equipment driving system thinking is ingenious, the problem of starting the engine and dismantling repeatedly has been avoided, can the on-line monitoring engine situation of heating simultaneously, realize automatic control heating process, save time, laborsaving, reduce the manpower and materials consumption that the engine dismantled repeatedly and brought, especially during emergency repair, the on-vehicle heating device of physics separation, with auxiliary heating device temporary access cooling heating system for engine body and lubricating oil heat and reach the starting condition, accord with the demand that large-scale equipment engine trouble emergency repair completely. The practicability is strong.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the utility model without limiting the utility model.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic external view of the present invention;

FIG. 3 is a schematic structural view of a warmer assembly of the present invention;

FIG. 4 is a left side view of the present invention;

FIG. 5 is a schematic view of the internal structure of the control box of the present invention;

FIG. 6 is a wiring diagram of the control box of the present invention;

FIG. 7 is a diagram of the wiring relationship of the heater according to the present invention;

FIG. 8 is a schematic of the fuel supply of the present invention;

FIG. 9 is a schematic diagram of a warming system of the present invention;

fig. 10 is an external view of the present invention.

In the figure: 1. a main box body; 2. a control box; 3. a warmer assembly; 4. an electric oil transfer pump; 5. a fuel tank; 6. an oil filling port; 7. an oil return port; 8. an oil outlet; 9. a touch screen; 10. a rubber water pipe; 11. a fuel pump; 12. a fuel bleeding screw; 13. an overflow pressure regulating valve; 14. a fuel filter; 15. an electromagnetic valve; 16. a centrifugal air pump; 17. a centrifugal water pump; 18. a water outlet pipe of the water pump; 19. a flow sensor; 20. a water inlet pipe of a water pump; 21. a pressure sensor; 22. a water outlet pipe of the heating pot; 23. a temperature sensor; 24. a smoke outlet; 25. heating the pan body; 26. a water inlet pipe of the heating pot; 28. a combustion chamber; 29. a flame temperature sensor; 30. an ignition glow plug; 31. an oil jet; 33. a pump set motor; 34. a flat joint oil return pipe; 36. a glow plug power supply relay; 37. operating a power supply relay; 38. starting a power supply relay; 39. a DC voltage reduction resistor; 40. a power supply interface; 41. a button box; 42. an analog quantity collector; 43. an overcurrent protection module; 44. a precision power main switch; 45. a voltage stabilization module; 46. a PLC controller; 47. a relay group; 48. a terminal block is provided.

Detailed Description

The details of the present invention and its embodiments are further described below with reference to the accompanying drawings.

Referring to fig. 1 to 10, the high-power fuel auxiliary heating device for a large-scale equipment power system of the utility model is used for heating and preheating an engine body and lubricating oil, on one hand, the engine body is heated and preheated by an external heating system before starting, so that the mechanical performance of each part of the engine body and the clearance of a main friction pair reach the optimal state, and the temperature and the lubricating condition of the lubricating oil reach the use regulations. On the other hand, can be independent of the on-vehicle heating apparatus outside, heat for the engine body alone and make it reach best starting temperature, do not have the harm to the engine, do not have the influence to the executive task simultaneously, as a interim treatment, reduce the repair time, reached the salvage purpose. The control box 2, the warmer assembly 3, electronic fuel delivery pump 4, the fuel tank 5 that mainly include main tank body 1, control system, warmer assembly 3, electronic fuel delivery pump 4 are installed inside main tank body 1, and control box 2, fuel tank 5 are installed respectively on main tank body 1's upper portion, and 5 upper portions of fuel tank are equipped with oiling mouth 6, and the bottom is equipped with oil return opening 7 and oil-out 8, and oil-out 8 connects gradually through pipeline and electronic fuel delivery pump 4, fuel filter 14, fuel pump 11 of warmer assembly 3, and oil return opening 7 links to each other through the flat joint oil return pipe 34 in pipeline and the overflow air-vent valve 13 outside. The touch screen 9 is installed on the cover plate of the main box body 1.

The inside analog quantity collector 42, overcurrent protection module 43, smart electric master switch 44, steady voltage module 45, PLC controller 46, relay group 47, the terminal platform 48 of being equipped with of control box 2, analog quantity collector 42 links to each other with PLC controller 46, and steady voltage module 45, overcurrent protection module 43, smart electric master switch 44 link to each other in proper order, and terminal platform 48, relay group 47, PLC controller 46 link to each other in proper order, are equipped with glow plug power supply relay 36, operation power supply relay 37, start power supply relay 38, direct current step-down resistor 39 and are connected with control box 2 respectively at the left surface of main tank 1. The analog quantity collector 42 is used for collecting data of each sensor and transmitting the data to the PLC 46 through a bus, the PLC is used for controlling the heater and monitoring the running state of the heater in real time, and when faults such as non-circulation of cooling liquid, overhigh piping pressure, unsuccessful ignition of a glow plug and the like occur, the heater can be automatically controlled to start and stop and work state conversion, and the heater is prevented from being damaged. The heater is normally operated to the set temperature, the heating is automatically stopped, the preset parameters in the PLC 46 can be adjusted through the touch screen 9, and the purpose of conveniently and efficiently maintaining the heater can be achieved.

The analog quantity collector 42 is a CAN/485 analog quantity collector, the current protection upper limit of the overcurrent protection module 43 is 30A, the voltage stabilizing module 45 is GODSEND, and the PLC controller 46 is SFM-2424A 4-RO.

The warmer assembly 3 comprises a fuel pump 11, a fuel gas bleed screw 12, an overflow pressure regulating valve 13, a fuel filter 14, an electromagnetic valve 15, a centrifugal air pump 16, a centrifugal water pump 17, a water pump water outlet pipe 18, a flow sensor 19, a water pump water inlet pipe 20, a pressure sensor 21, a warming pot water outlet pipe 22, a temperature sensor 23, a smoke outlet 24, a warming pot body 25, a warming pot water inlet pipe 26, a combustion chamber 28, a flame temperature sensor 29, an ignition glow plug 30, a fuel injection nozzle 31, a pump set motor 33 and a flat joint oil return pipe 34. The pump set is used as a core essential element of the heater assembly and is integrated by a fuel pump 11, a pump set motor 33, a centrifugal air pump 16 and a centrifugal water pump 17 into a whole, the centrifugal air pump 16 and the centrifugal water pump 17 are coaxial integrated pumps, the middle part is separated by a partition wall, the left side of the centrifugal air pump 16 is provided with an air inlet which is covered by a mesh enclosure to prevent foreign matters from being sucked, and the lower end is provided with an air duct pipeline communicated with a combustion chamber 28; the pump set motor 33 is a power source of the pump set and is positioned between the fuel pump 11 and the centrifugal air pump 16 as well as between the fuel pump 11 and the centrifugal water pump 17, the fuel pump 11 is fixed at the left end of the pump set motor 33, the fuel pump 11 is rigidly connected with the pump set motor 33 through a coupler, the pump set motor 33 is fixed at the left end of the centrifugal air pump 16, and the right end of an armature shaft of the pump set motor 33 is rigidly connected with the centrifugal air pump 16 and the centrifugal water pump 17 through spline sleeves; when the circuit is connected, the pump set motor 33 drives the fuel pump 11, the centrifugal air pump 16 and the centrifugal water pump 17 to work simultaneously, the fuel pump 11 provides high-pressure fuel for the fuel injection nozzle 31 fixed at the front end of the combustion chamber 28, the centrifugal air pump 16 provides oxygen required by combustion for the atomized fuel, the atomized fuel is ignited in the combustion chamber 28, the atomized fuel is combusted in the heating pot body 25 to directly heat the heating pot body and the internal heating plate, the cooling liquid in the interlayer of the heating pot body 25 is indirectly heated, and the centrifugal water pump 17 enables the cooling liquid in the interlayer of the heating pot body 25 to circulate in the heating system, so that the engine body is heated. Exhaust gas from the combustion is exhausted through exhaust port 24.

The overflow pressure regulating valve 13 is arranged at an oil outlet of the fuel pump 11 and has the functions of oil outlet and pressure regulation, and 2 oil pipe flat joints are sequentially arranged on the overflow pressure regulating valve 13 and are compressed by a cap nut to form a closed oil way. A fuel pump oil outlet pipe flat joint is arranged close to a pump body of the fuel pump 11, a fuel gas bleeding screw 12 and an oil pipe leading to an electromagnetic valve 15 are arranged on the side surface of the fuel pump oil outlet pipe flat joint, the oil return pipe 34 of the flat joint oil pipe above the fuel pump oil outlet pipe is just the position of a valve body of an overflow pressure regulating valve 13, when the heating is stopped, the power-off oil circuit of the electromagnetic valve 15 is cut off, the heater stops heating, a pump set motor 33 is still in operation, the fuel pump 11 supplies oil, high-pressure oil flows back to the fuel tank 5 through the overflow pressure regulating valve 13, the oil return pipe 34 and a fuel tank oil return opening 7, an interlayer of a heating pot body 25 is a pot body inner container for containing cooling liquid, the cooling liquid is connected with a water outlet of an engine cooling and heating system through a water inlet pipe 20 of a water pump of the centrifugal pump 17, a water outlet pipe 18 of the pump, a water inlet pipe 26 of the heating pot and a water outlet pipe 22 of the heating pot are connected into the cooling and heating system through water pipes, the cooling liquid is heated continuously by the heating pot 25 and circulates in the cooling and heating system continuously by the centrifugal water pump 17, so that the engine body and the lubricating oil are heated indirectly. A flow sensor 19 is arranged on a water inlet pipe 20 of a water pump, a pressure sensor 21 and a temperature sensor 23 are arranged on a water outlet pipe 22 of a warming pot, and a flame temperature sensor 29 is arranged at a flame inspection port of a combustion chamber 28 and used for monitoring the state of the warmer during warming operation.

The fuel pump 11, the motor 33, the centrifugal air pump 16 and the centrifugal water pump 17 form a heater pump set which is mainly used for exchanging heat between heat generated by fuel combustion and cooling liquid in an interlayer of the heating pot body 25, and the pump set is used for forcing the cooling liquid to circulate in a cooling and heating system to heat a power and transmission device. The heat pump has the technical characteristics of large heat productivity and high heat efficiency. (the heating pot has a heating value of more than or equal to 60000 calories/h, a heat efficiency of more than or equal to 64 percent and an oil consumption of less than or equal to 12L/h).

The fuel tank 5 is used for supplying fuel to a fuel pump 11 of the warmer assembly 3, spraying atomized diesel oil into the combustion chamber 28 in real time through a fuel spray nozzle 31, mixing the atomized diesel oil with air sent by the centrifugal air pump 16 to form combustible mixed gas, igniting and burning the combustible mixed gas through an ignition glow plug 29 to heat the warmer pot body 25, and ensuring that the warmer assembly 3 can work normally.

The fuel tank 5, the electric fuel delivery pump 4, the fuel filter 14, the fuel pump 11 and the fuel spray nozzle 31 are sequentially connected through oil pipes, high-pressure oil is formed through the fuel pump 11 and is supplied to the fuel spray nozzle 31, the high-pressure oil is atomized and sprayed into a combustion chamber through the fuel spray nozzle 31, a closed oil way supply system is formed, and the oil supply condition of the fuel spray nozzle is met. (FIG. 8)

The working principle of the high-power fuel auxiliary heating device for the large-scale equipment power system is as follows:

the warmer assembly is an independent working system, and the coolant part is communicated with the engine cooling system. The pump set comprises a fuel pump 11, a pump set motor 33, a centrifugal air pump 16 and a centrifugal water pump 17. When the engine is heated before starting, the pump set motor 33 drives the fuel pump 11, the centrifugal air pump 16 and the centrifugal water pump 17 to work to drive the cooling liquid to circulate, so as to provide enough oxygen for combustion, provide high-pressure fuel oil, spray the high-pressure fuel oil into the combustion chamber 28 in a mist form through the fuel spray nozzle 31 on the combustion chamber 28, mix the high-pressure fuel oil with air sent by the centrifugal air pump 16 to form combustible mixed gas, ignite the combustible mixed gas by the ignition glow plug 30 arranged in the combustion chamber 28, heat generated by combustion heats the cooling liquid in the interlayer of the heating pot body 25, the cooling liquid circulates in the whole engine cooling system under the action of the water pump of the warmer, and the heat is brought to the cooling water cavity of the engine, the engine oil coiled water pipe, the motor oil pump, the water radiator and the like and then is pumped back to the warmer. The cooling liquid returned to the heater is heated and then circulated again, so that the temperature of the cooling liquid and the engine oil is increased, the engine is preheated, and the engine is easy to start.

The 24V storage battery or the 24V auxiliary heating device directly connected to the external socket of the vehicle-mounted battery pack is used as a 24V power supply of the high-power fuel auxiliary heating device for a large-scale equipment power system.

The analog quantity collector 42 is used for collecting data of each sensor and transmitting the data to the PLC controller 46 through a bus, the PLC controller 46 runs the heater according to a built-in parameter program and collected data, the running state of the heater is monitored in real time, when faults such as water non-circulation, overhigh pressure in a piping system, unsuccessful ignition of a glow plug and the like occur, the heater can be automatically diagnosed and controlled to start and stop and work state conversion, the heater is protected, and the heater is prevented from being damaged. The heating is automatically stopped when the temperature is normally set, and the preset parameters in the PLC 46 can be adjusted through the touch screen 9, so that the heating process can be conveniently and efficiently controlled.

The working process is as follows:

1. the fuel oil is filled into a fuel oil tank 5 of a high-power fuel oil auxiliary heating device for a large-scale equipment power system, the connection positions of an oil way are checked to ensure reliable sealing, the fuel oil air release screw 2 on a fuel oil pump 11 of a pump set needs to be loosened in the first work, and air in the oil way is removed and then screwed tightly;

2. a matched rubber water pipe 10 is correspondingly connected with a pipeline of a high-power fuel oil auxiliary heating device used for a large-scale equipment power system and a power transmission device cooling and heating system to ensure that the joint is sealed reliably and has no leakage, and a water filling port cover of an expansion water tank or a water radiator of an engine is opened;

3. the power supply interface 40 of the high-power fuel auxiliary heating device for the large equipment power system is connected with the storage battery or the external socket of the vehicle-mounted battery pack by using a special cable to supply 24V power to the high-power fuel auxiliary heating device for the large equipment power system;

4. starting a high-power fuel auxiliary heating device for a large-scale equipment power system to work:

(1) the circuit is switched on through the button box 41;

(2) adjusting the operation interface of the touch screen 9 to a heating interface and setting a heating upper limit;

(3) clicking a screen start button 'warmer and automatically starting', firstly operating the warmer, removing air in a pipeline, if the pipeline is monitored to have air resistance, automatically stopping operation, reporting a fault, and prompting a fault position on a touch screen 9 (timely removing the air resistance fault); if no fault exists and the flow and the pressure meet the requirements, the operation is automatically stopped and a glow plug power supply circuit is automatically switched on, after the glow plug is preheated for a set time, a motor starting circuit is automatically switched on, the flame temperature sensor 29 detects that the ignition temperature reaches the set temperature, the circuit is automatically switched on after the ignition is successful, and the warmer starts to heat; if the ignition is unsuccessful, automatically stopping the operation and indicating a troubleshooting method; after the operation heating reaches the set temperature, the oil of the pump group is cut off, the electromagnetic valve 15 is automatically powered off, the oil supply is stopped, the heater also stops burning, the heater continues to operate to remove the gas in the combustion chamber 28 and simultaneously cool the heating sheet in the combustion chamber, so that the local overheating is prevented, the leakage in the heating pot body 25 is caused, when the temperature of the combustion chamber 28 is reduced to the standard, the operation is stopped, the heating operation is finished, and the water temperature, the pipeline pressure and the flow of the heater are monitored in real time in the operation process of the heater, and the operation is automatically stopped when the abnormality occurs.

Referring to fig. 7 and 8, the warmer is electrically connected:

the control box is connected with the touch screen 9 through an aviation plug X1, the aviation plug is a 5-hole plug, pins 1, 2 and 3 are used for connecting a data port of the touch screen 9 and a data port of the PLC 46, the connection method is an RS232 standard direct connection method, a pin 4 is connected with a precise electricity negative electrode, a pin 5 is connected with a precise electricity positive electrode, and the purpose of supplying power to the touch screen 9 and controlling the PLC 46 is achieved through mutual matching.

The control box 2 is connected with a water temperature sensor, a flame temperature sensor, a flow sensor, a pressure sensor, a glow plug power supply relay, a starting relay and an operation relay through an aviation plug X2, a switch box, an oil supply electromagnetic valve, an electric oil transfer pump 4 and a power supply socket, wherein the aviation plug is connected with the power supply socket and is provided with 14 holes, and pins 1 and 2 of the plug are used for connecting the input end of the PLC 46 and a reset button (a point-action switch) in the switch control box and are used for transmitting a reset signal; the pins 3, 4, 5 and 6 of the plug are used for connecting an input pin of the analog quantity collector and the positive electrodes of the water temperature, flame temperature, flow and pressure sensors and transmitting back the numerical values of the sensors; the pin 7 of the plug is connected with the relay set, the oil supply electromagnetic valve and the electric oil transfer pump, and is used for controlling the J7 of the relay set to distribute power for the oil supply electromagnetic valve 15 and the electric oil transfer pump 4 according to the instruction sent by the PLC; the No. 8 pin of the plug is used for connecting the positive pole of a control pin of the main switch of the precision power and a power switch (inching switch) of the switch box, and the output pin of the main switch 44 of the precision power is connected with the positive pole of the control pin of the main switch of the precision power, so that the relay of the main switch of the precision power is self-locked after being sucked; the No. 9 pin of the plug is a power supply pin of the control box, is connected with the main switch relay of the precision power and a power supply socket and is connected with the positive electrode of the input end of the 24V voltage stabilizing module through the overcurrent protection module to form a complete precision power supply system; the No. 10 pin of the plug is a hollow pin; the No. 11 pin of the plug is used for connecting the negative electrode of the wiring terminal block and the negative electrodes of the water temperature, flame temperature, flow and pressure sensors; pins 12, 13 and 14 are respectively used for connecting the relay group and the positive electrode of the control pin of the glow plug for power supply, starting and operation relay, and are used for controlling J1, J2 and J3 of the relay group to supply power to the positive electrode of the control pin of the glow plug for power supply, starting and operation relay according to the instruction sent by the PLC 46; the power supply of the glow plug and the power supply conversion of the starting operation of the motor can be controlled; the starting power supply line is connected with a voltage reduction resistor in series, so that the starting instantaneous current can be reduced.

The above description is only a preferred example of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made to the present invention shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a high-power fuel oil auxiliary heating device for large-scale equipment driving system which characterized in that: the oil-saving control system comprises a main box body (1), a control box (2) of a control system, a warmer assembly (3), an electric oil transfer pump (4) and a fuel tank (5), wherein the warmer assembly (3) and the electric oil transfer pump (4) are installed inside the main box body (1), the control box (2) and the fuel tank (5) are respectively installed on the upper part of the main box body (1), an oil filling port (6) is formed in the upper part of the fuel tank (5), an oil return port (7) and an oil outlet (8) are formed in the bottom of the fuel tank, the oil outlet (8) is sequentially connected with the electric oil transfer pump (4), the fuel filter (14) and a fuel pump (11) of the warmer assembly (3) through pipelines, and the oil return port (7) is connected with a flat joint oil return pipe (34) on an overflow pressure regulating valve (13) through a pipeline; a touch screen (9) is arranged on a cover plate of the main box body (1).

2. The high-power fuel auxiliary heating device for the large-scale equipment power system according to claim 1, characterized in that: the pump set of the warmer assembly (3) is integrated by a fuel pump (11), a pump set motor (33), a centrifugal air pump (16) and a centrifugal water pump (17), the centrifugal air pump (16) and the centrifugal water pump (17) are coaxial integrated pumps, the middle of the centrifugal air pump and the centrifugal water pump are separated by a partition wall, the left side of the centrifugal air pump (16) is provided with an air inlet, and the lower end of the centrifugal air pump is provided with an air duct pipeline communicated with a combustion chamber (28); the pump set motor (33) is a power source of the pump set and is positioned between the fuel pump (11) and the centrifugal air pump (16) and the centrifugal water pump (17), the fuel pump (11) is fixed at the left end of the pump set motor (33), the fuel pump (11) is rigidly connected with the pump set motor (33) through a coupler, the pump set motor (33) is fixed at the left end of the centrifugal air pump (16), and the right end of the pump set motor (33) is rigidly connected with the centrifugal air pump (16) and the centrifugal water pump (17) through spline sleeves.

3. The high-power fuel auxiliary heating device for the large-scale equipment power system according to claim 2, characterized in that: an overflow pressure regulating valve (13) is arranged at an oil outlet of the fuel pump (11), 2 flat joint oil pipes are sequentially arranged on the overflow pressure regulating valve (13), and a cover nut is used for pressing the flat joint oil pipes to form a closed oil path; a flat joint oil outlet pipe is arranged close to the pump body of the fuel pump (11), and a fuel gas discharge screw (12) and an oil pipe communicated with the electromagnetic valve (15) are arranged on the side surface of the flat joint oil outlet pipe; the upper flat joint oil pipe is a flat joint oil return pipe (34) and is positioned at the position of the valve body of the overflow pressure regulating valve (13); the interlayer of the warming pot body (25) is a pot body inner container and contains cooling liquid, the cooling liquid is connected with an engine cooling and warming system through a water pump water inlet pipe (20) of a centrifugal water pump (17), and the cooling liquid is connected into the engine cooling and warming system through the water pump water inlet pipe (20), the centrifugal water pump (17), a water pump water outlet pipe (18), a warming pot water inlet pipe (26) and a warming pot water outlet pipe (22) under the drive of a pump set motor (33); a flow sensor (19) is arranged on a water inlet pipe (20) of the water pump, a pressure sensor (21) and a temperature sensor (23) are arranged on a water outlet pipe (22) of the heating pot, and a flame temperature sensor (29) is arranged at a flame inspection port of a combustion chamber (28).

4. The high-power fuel auxiliary heating device for the large-scale equipment power system according to claim 2, characterized in that: the fuel pump (11), the pump set motor (33), the centrifugal air pump (16) and the centrifugal water pump (17) form a warmer pump set, heat generated by fuel combustion is subjected to heat exchange with cooling liquid in an interlayer of the warming pot body (25), and the cooling liquid is forced to circulate in a cooling and warming system through the pump set to warm the power and transmission device.

5. The high-power fuel auxiliary heating device for the large-scale equipment power system according to claim 1, characterized in that: the intelligent control device is characterized in that an analog quantity collector (42), an overcurrent protection module (43), a fine electricity main switch (44), a voltage stabilizing module (45), a PLC (programmable logic controller) controller (46), a relay group (47) and a wiring terminal table (48) are arranged inside the control box (2), the analog quantity collector (42) is connected with the PLC controller (46), the voltage stabilizing module (45), the overcurrent protection module (43) and the fine electricity main switch (44) are sequentially connected, the wiring terminal table (48), the relay group (47) and the PLC controller (46) are sequentially connected, and a glow plug power supply relay (36), a running power supply relay (37), a starting power supply relay (38) and a direct current voltage reduction resistor (39) are arranged on the left side face of the main box body (1) and are respectively connected with the control box (2).

6. The high-power fuel auxiliary heating device for the large-scale equipment power system according to claim 1, characterized in that: the fuel tank (5) is connected with a fuel pump (11) of the warmer assembly (3), atomized diesel oil is sprayed into the combustion chamber (28) in real time through a fuel spray nozzle (31) and is mixed with air sent by the centrifugal air pump (16) to form combustible mixed gas, and the combustible mixed gas is ignited and combusted through an ignition glow plug (30) to heat the warming pan body (25).

7. The high-power fuel auxiliary heating device for the large-scale equipment power system according to claim 2, characterized in that: the fuel tank (5), the electric fuel delivery pump (4), the fuel filter (14), the fuel pump (11) and the fuel spray nozzle (31) are sequentially connected through oil pipes to form a closed oil way supply system, and the oil supply condition of independent use is met.