CN103321791A - Diesel oil way heating device, oil way assembly with diesel oil way heating device and diesel engine - Google Patents
Diesel oil way heating device, oil way assembly with diesel oil way heating device and diesel engine Download PDFInfo
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- CN103321791A CN103321791A CN2013102911762A CN201310291176A CN103321791A CN 103321791 A CN103321791 A CN 103321791A CN 2013102911762 A CN2013102911762 A CN 2013102911762A CN 201310291176 A CN201310291176 A CN 201310291176A CN 103321791 A CN103321791 A CN 103321791A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 182
- 239000002283 diesel fuel Substances 0.000 title claims abstract description 95
- 239000002828 fuel tank Substances 0.000 claims description 26
- 238000012544 monitoring process Methods 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 119
- 239000000446 fuel Substances 0.000 description 6
- 206010037660 Pyrexia Diseases 0.000 description 5
- 238000012857 repacking Methods 0.000 description 5
- 239000012467 final product Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010792 warming Methods 0.000 description 4
- 230000008021 deposition Effects 0.000 description 3
- 230000011218 segmentation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
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Abstract
The invention discloses a diesel oil way heating device, an oil way assembly with the diesel oil way heating device and a diesel engine, and relates to the technical field of automobile heating devices. The diesel oil way heating device has the advantages of being high in heating efficiency, high in heating speed, easy to transform and free of tube melting during dry burning, and the diesel oil way heating device is safe and reliable in use. According to the technical scheme, the diesel oil way heating device comprises a first control circuit, a second control circuit, at least one heating line assembly, a heating rod assembly and a temperature controlled switch. The first control circuit controls the heating line assembly to work, one end of the temperature controlled switch is connected with the first control circuit, and the other end of the temperature controlled switch is connected with the second control circuit. The second control circuit and the temperature controlled switch control the heating rod assembly to work. The diesel oil way assembly comprises a diesel oil tank oil suction pipe, a diesel oil pipe, a coarse cleaner, a diesel oil delivery pump, a fine cleaner and the diesel oil way heating device. The diesel engine comprises the oil way assembly. The diesel oil way heating device is mainly used for diesel oil way heating of an automobile.
Description
Technical field
The present invention relates to the heating apparatus for vehicle technical field, relate in particular to a kind of diesel oil oil way heating unit and comprise oil circuit assembly and the diesel engine of this device.
Background technique
Diesel engine is that burning diesel oil obtains exergonic motor, although diesel engine has the advantages such as the thermal efficiency and better economy, but because the fuel of its usefulness is diesel oil, diesel oil is large than gasoline viscosity, so, when temperature is low, can make diesel oil the problems such as thick solidifying, wax deposition, obstruction oil pipe occur, so that diesel engine can not start.
The problem that causes diesel car not start in order to solve cold snap, the following dual mode of general employing is realized in the prior art; The first is changed the lower diesel oil of freezing point; The second adds the diesel oil oil way heating unit in the diesel oil oil circuit.The scheme cost of the diesel oil that wherein, the replacing freezing point is lower is higher; As everyone knows, according to GB (GB252-87), the Diesel oil specification is divided into 10,0 ,-10 ,-20 ,-35 and-50 6 trade mark by condensation point, and according to the GB252-2000 standard-required, selects the Diesel oil trade mark should abide by following principle: No. 10 Diesel oils are applicable to the diesel engine of pre-heating device; It is that 10% the lowest temperature uses in the area more than 8 ℃ that No. 5 Diesel oils are applicable to relative risk; It is that 10% the lowest temperature uses in the area more than 4 ℃ that No. 0 Diesel oil is applicable to relative risk; It is that 10% the lowest temperature uses in the area more than-5 ℃ that-No. 10 Diesel oils are applicable to relative risk; It is that 10% the lowest temperature uses in the area more than-14 ℃ that-No. 20 Diesel oils are applicable to relative risk; It is that 10% the lowest temperature uses in the area more than-29 ℃ that-No. 35 Diesel oils are applicable to relative risk; It is that 10% the lowest temperature uses in the area more than-44 ℃ that-No. 50 Diesel oils are applicable to relative risk; According to above-mentioned standard, Northern Part of China will use-No. 20 or-No. 35 diesel oil for making the diesel engine normal operation whole winter, and this cost is huge.So most of mode of adding the diesel oil oil way heating unit in the diesel oil oil circuit that adopts addresses the above problem at present.
The motor vehicle diesel oil way heating unit that uses at present mainly divides two large types: a kind of is to add pattern of fever, and a kind of is interior hot type.Wherein, adding pattern of fever is the outside that heater is installed in fuel tank, oil pipe, coarse cleaner, thin Cleaner, the ecto-entad heating, the working life that although this mode of heating Security is better, its thermal efficiency is low, rate of heating slow, the consumption of storage battery electric energy is large, shortened storage battery.And interior hot type, that the quick heating type heater directly is inserted in each assembly of oil circuit, although it has overcome the slow problem of pattern of fever heater rate of heating that adds, but this kind fast heat apparatus, need heater in seconds to produce larger heat, so that the moment thawing of diesel oil wax deposition, such as improper use, very easily produce the problem that the diesel oil oil pipe is dissolved, have a strong impact on the safety of automobile.
Summary of the invention
Embodiments of the invention provide a kind of diesel oil oil way heating unit and comprise oil circuit assembly and the diesel engine of this device, have the advantages that the thermal efficiency is high, rate of warming fast, easily pipe is not changed in repacking, dry combustion method, and are safe and reliable.
For achieving the above object, embodiments of the invention adopt following technological scheme:
A kind of diesel oil oil way heating unit comprises: first control circuit, second control circuit, at least one heater wire assembly, heating stick assembly, temperature detect switch (TDS);
One end of described first control circuit is connected with the 24V primary power supply, and an end of the other end and heater wire assembly and an end of temperature detect switch (TDS) are connected in parallel; The other end ground connection of described heater wire assembly;
One end of described second control circuit is connected with the 24V primary power supply, and the other end is connected with an end of heating stick assembly and the other end of temperature detect switch (TDS); The other end ground connection of described heating stick assembly;
Described heater wire assembly is arranged at oil pipe and the fuel tank oil suction pipe place between fuel tank and the coarse cleaner, and described heater wire assembly comprises heater wire, and described heater wire places in the cavity of oil pipe between described fuel tank and the coarse cleaner and fuel tank oil suction pipe; The maximum service rating of described heater wire is no more than its fusing point;
Described heating stick assembly comprises heating stick, and described heating stick is arranged in the cavity of filter cleaner;
Described temperature detect switch (TDS) is arranged at the filter seat place, and the real time temperature in the monitoring oil circuit is controlled conducting and the disconnection of described heating stick assembly circuit.
Further, described first control circuit comprises: ignition switch, the first switch, the first fus, the first relay; Described second control circuit comprises: the second fus, the second relay;
The voltage end that connects of described ignition switch and described the first switch and the first control relay circuit is connected in series successively, and the other end of described ignition switch is connected with described 24V primary power supply, the other end ground connection of described the first control relay circuit; The voltage end that connects of described the first fus and the first relay working circuit is connected in series, and the other end of described the first fus is connected with described 24V primary power supply; One end of the other end of described first control circuit and heater wire assembly and temperature detect switch (TDS) is connected in parallel and is specially: an end of the common port of described the first relay working circuit and heater wire assembly and an end of temperature detect switch (TDS) are connected in parallel;
The voltage end that connects of described the second fus and the second relay working circuit is connected in series, and the other end of described the second fus is connected with described 24V primary power supply; One end of the other end of described second control circuit and heating stick assembly and the other end of temperature detect switch (TDS) are connected and are specially: the voltage end that connects of described the second control relay circuit is connected with the other end of temperature detect switch (TDS); The common port of described the second relay working circuit is connected with an end of described heating stick assembly; The other end ground connection of described the second control relay circuit.
Further, described heater wire assembly also comprises: at least two threaded cutting ferrule flanges in two;
Described cutting ferrule flange is positioned at the oil pipe joint, in the middle of two oil pipe attaching nuts; The top of described cutting ferrule flange is provided with external terminal and internal wiring end; Described external terminal is connected with the circuit power line, and the described internal wiring end heater wire interior with placing oil pipe is connected; One end of described heater wire is connected with the internal wiring end of the first cutting ferrule flange, and the other end is connected with the internal wiring end of the second cutting ferrule flange;
The common port of described the first relay working circuit is connected with an end of heater wire assembly and is specially: the common port of described the first relay working circuit is connected with the external terminal of described the first cutting ferrule flange; The other end ground connection of described heater wire assembly is specially: the external terminal ground connection of described the second cutting ferrule flange.
Further, described heating stick assembly also comprises: hollow bolt, hollow seal pad;
The size of described hollow bolt endoporus matches with the external diameter size of described heating stick, and hollow bolt passes the upper end that heating stick places heating stick; The size of described hollow seal pad endoporus matches with the external diameter size of described hollow bolt screw thread, and it passes the below that heating stick places the hollow bolt hexagon head; The top of described heating stick is provided with external terminal, and described external terminal has two wiring pins;
The common port of described the second relay working circuit is connected with an end of described heating stick assembly and is specially: the common port of described the second relay working circuit is connected with a wiring pin of described heating stick top terminal; The other end ground connection of described heating stick assembly is specially: another wiring pin ground connection of described heating stick top terminal.
Optionally, described heating stick assembly also comprises: filter seat, and described filter seat center position is provided with thread circle hole, and the size of described thread circle hole matches with the screw thread of described hollow bolt.
Optionally, also comprise work indicator light; One end of described work indicator light is connected with the common port of the second relay working circuit, the other end ground connection of described work indicator light.
Optionally, described heater wire is the wire of tape insulation layer, and its working power is 20 watts every meter.
Optionally, the temperature-control range of described temperature detect switch (TDS) is: temperature detect switch (TDS) is connected when being lower than 5 ℃, and temperature detect switch (TDS) disconnects when being higher than 25 ℃.
A kind of diesel oil oil circuit assembly comprises fuel tank oil suction pipe, oil pipe, coarse cleaner, oil transfer pump, fine cleaner; Wherein, described coarse cleaner, oil transfer pump, fine cleaner connect by oil pipe successively, and an end of described fuel tank oil suction pipe connects fuel tank, and the other end of described fine cleaner connects high pressure oil pump; Also comprise: aforesaid diesel oil oil way heating unit.
A kind of diesel engine comprises aforesaid diesel oil oil circuit assembly.
Diesel oil oil way heating unit provided by the invention and comprise oil circuit assembly and the diesel engine of this device, adding pattern of fever with available technology adopting compares with the interior hot type heating equipment of speed heat, it is when heating the diesel oil oil circuit, by heater wire assembly built-in in the diesel oil oil circuit and the segmentation of heating stick assembly diesel oil is heated, its thermal efficiency is high, rate of warming is fast, and heater wire assembly and heating stick assembly all add in original oil circuit, so that its easy repacking.In addition, although heater wire is to be built in fuel tank oil suction pipe and the oil pipe, its maximum service rating is no more than its fusing point, so the potential safety hazard of having avoided fast heat to cause; And for the use of heating stick assembly, controlled by temperature detect switch (TDS), it connects the circuit of heating stick assembly when monitoring diesel fuel temperature and be lower than uniform temperature, begin the diesel oil in the oil circuit is heated, and when monitoring diesel fuel temperature and be higher than uniform temperature, just disconnect the circuit of heating stick assembly, the heating work of stopped heating rod assembly, avoided because of the too high potential safety hazard that causes of heating stick heating-up temperature, so that this diesel oil oil way heating unit is safe and reliable, also avoided the luxus consumption of storage battery electric energy simultaneously.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention and technological scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment and the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of a kind of diesel oil oil way heating unit in the embodiment of the invention;
Fig. 2 is the circuit diagram of a kind of diesel oil oil way heating unit in the embodiment of the invention;
Fig. 3 is the structural representation of heater wire assembly in the embodiment of the invention;
Fig. 4 is the structural representation of heating stick assembly in the embodiment of the invention;
Fig. 5 is the circuit diagram of another kind of diesel oil oil way heating unit in the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technological scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiments.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment who obtains under the creative work prerequisite.
As shown in Figure 1, the embodiment of the invention provides a kind of diesel oil oil way heating unit, comprising: first control circuit 1, second control circuit 2, at least one heater wire assembly 3, heating stick assembly 4, temperature detect switch (TDS) 5.
One end of described first control circuit 1 is connected with the 24V primary power supply, and an end of the other end and heater wire assembly 3 and an end of temperature detect switch (TDS) 5 are connected in parallel; The other end ground connection of described heater wire assembly 3.
One end of described second control circuit 2 is connected with the 24V primary power supply, and the other end is connected with an end of heating stick assembly 4 and the other end of temperature detect switch (TDS) 5; The other end ground connection of described heating stick assembly 4.
Described heater wire assembly 3 is arranged at oil pipe 6 and fuel tank oil suction pipe 7 places between fuel tank and the coarse cleaner, and described heater wire assembly comprises heater wire 31, and described heater wire 31 places in oil pipe 6 and fuel tank oil suction pipe 7 cavitys; The maximum service rating of described heater wire 31 is no more than its fusing point.In order fully to guarantee the Security of heater wire assembly heating, described heater wire is the wire of tape insulation layer, and its working power can be 20 watts every meter.Concrete, can determine according to the length that voltage and needs arrange heater wire the specification of heater wire, as long as it is under 24V voltage, the peak output during work does not exceed institute and uses the peak output that heats cable to get final product, the embodiment of the invention does not arrange this.
Described heating stick assembly 4 comprises heating stick 41, and described heating stick 41 is arranged in the cavity of filter cleaner 8.Wherein, this filter cleaner comprises coarse cleaner and fine cleaner.According to demand, described heating stick assembly 4 can be set respectively in coarse cleaner and fine cleaner, can in a filter cleaner heating stick assembly 4 be set therein yet, the embodiment of the invention does not arrange this.
Described temperature detect switch (TDS) 5 is arranged at 8 places of filter cleaner, and the real time temperature in the monitoring oil circuit is controlled conducting and the disconnection of described heating stick 41 circuit.This filter cleaner 8 also comprises coarse cleaner and fine cleaner.Whether this temperature detect switch (TDS) 5 will arrange respectively at this coarse cleaner and fine cleaner place, according to demand can be in coarse cleaner and fine cleaner arranges respectively, also can be therein arranges in one, and the embodiment of the invention does not arrange this.But for the Security that guarantees to heat, preferentially at this coarse cleaner and fine cleaner place this temperature detect switch (TDS) 5 is set respectively.The temperature-control range of described temperature detect switch (TDS) 5 is: temperature detect switch (TDS) 5 is connected when being lower than 5 ℃, and temperature detect switch (TDS) 5 disconnects when being higher than 25 ℃.
When the diesel oil oil circuit is heated, by heater wire assembly built-in in the diesel oil oil circuit and the segmentation of heating stick assembly diesel oil to be heated, its thermal efficiency is high, rate of warming is fast, and heater wire assembly and heating stick assembly all add in original oil circuit, so that its easy repacking.In addition, although heater wire is to be built in fuel sucking pipe and the oil pipe, its maximum service rating is no more than its fusing point, so the potential safety hazard of having avoided the quick heating type heating equipment to cause; And for the use of heating stick assembly, controlled by temperature detect switch (TDS), it connects the circuit of heating stick assembly when monitoring diesel fuel temperature and be lower than uniform temperature, diesel oil is implemented heating, and when monitoring diesel fuel temperature and be higher than uniform temperature, just disconnect the circuit of heating stick assembly, the heating work of stopped heating rod assembly, thereby avoided because of the too high potential safety hazard that causes of heating stick heating-up temperature, so that this diesel oil oil way heating unit is safe and reliable, also avoided the luxus consumption of storage battery electric energy simultaneously.
Further, as shown in Figure 2, described first control circuit 1 comprises: ignition switch 11, the first switch 12, the first fus 13, the first relay 14.
Described ignition switch 11 is connected in series successively with the voltage end that connects of described the first switch 12 and the first relay 14 control circuits, and the other end of described ignition switch 11 is connected with described 24V primary power supply, the other end ground connection of described the first relay 14 control circuits; The voltage end that connects of described the first fus 13 and the first relay 14 working circuits is connected in series, and the other end of described the first fus 13 is connected with described 24V primary power supply.
Under this control circuit, an end of the other end of described first control circuit 1 and heater wire assembly 3 and temperature detect switch (TDS) 5 is connected in parallel and is specially: the common port of described the first relay 14 working circuits and an end of heater wire assembly 3 and an end of temperature detect switch (TDS) 5 are connected in parallel.
As shown in Figure 2, described second control circuit 2 comprises: the second fus 21, the second relay 22.
The voltage end that connects of described the second fus 21 and the second relay 22 working circuits is connected in series, and the other end of described the second fus 21 is connected with described 24V primary power supply.
Under this control circuit, an end of the other end of described second control circuit 2 and heating stick assembly 4 and the other end of temperature detect switch (TDS) 5 are connected and are specially: the voltage end that connects of described the second relay 22 control circuits is connected with the other end of temperature detect switch (TDS) 5; The other end ground connection of described the second relay 22 control circuits; The common port of described the second relay 22 working circuits is connected with an end of described heating stick assembly 4.
Further, as shown in Figure 3, described heater wire assembly 3 also comprises: at least two threaded cutting ferrule flanges 32 in two.
Described cutting ferrule flange 32 is positioned at the joint of oil pipe 6, in the middle of the attaching nut of two oil pipes 6; The top of described cutting ferrule flange 32 is provided with external terminal 321 and internal wiring end 322; Described external terminal 321 is connected with the circuit power line, and the heater wire 31 in described internal wiring end 322 and the oil pipe is connected.Wherein, when the heater wire 31 in described internal wiring end 322 and the oil pipe was connected, it can be the Placement of wiring terminal, also can be the mode of welding, and the embodiment of the invention does not limit this.When using the mode of welding, preferably open a punch circular hole on the top of cutting ferrule flange 32, heater wire is accessed and is welded on its top.
Based on said structure, an end of described heater wire 31 is connected with the internal wiring end 322 of the first cutting ferrule flange, and the other end is connected with the internal wiring end 322 of the second cutting ferrule flange.
The common port of described the first relay 14 working circuits is connected with an end of heater wire assembly 3 and is specially: the common port of described the first relay 14 working circuits is connected with the external terminal 321 of described the first cutting ferrule flange; The other end ground connection of described heater wire assembly is specially: external terminal 321 ground connection of described the second cutting ferrule flange.
Based on said structure, the process that installs the heater wire assembly once at oil pipe additional is described below, when this process of description, carry out according to the mode that is welded to connect heater wire.Fuel sucking pipe between from the fuel tank to the coarse cleaner and oil pipe generally are no more than 3 junction buttons, namely generally are connected to form by being no more than 4 oil pipes.Because the heater wire of this heater wire assembly need to penetrate the cavity that oil pipe enters oil pipe from an end, pass be used to connecing power supply from the oil pipe the other end, so the concrete steps that install the heater wire assembly additional at oil pipe comprise:
The first step is selected the position of repacking, namely is chosen in which oil pipe and connects buckle and heater wire is penetrated oil pipe send into the oil pipe cavity, which oil pipe to connect buckle at heater wire is passed from oil pipe; For example, have four oil pipe junction buttons in the oil pipe between supposing from the fuel tank to the coarse cleaner at least, according to from left to right order the first and second oil pipe junction buttons and the third and fourth oil pipe junction button are divided into respectively one group, and a heater wire assembly is set respectively.
Second step, the nut that first (or 3rd) oil pipe is connected buckle is outwarded winding, former cutting ferrule flange is taken off, replace with heater wire assembly cutting ferrule flange, one end of heater wire is sent in the fuel tank oil suction pipe cavity, and this end of heater wire passed non-threaded hole on the cutting ferrule flange, and this end is welded on the cutting ferrule flange.
In the 3rd step, the nut that second (or 4th) oil pipe is connected buckle is outwarded winding, and former cutting ferrule flange is taken off, and replaces with heater wire assembly cutting ferrule flange, and the non-threaded hole that the other end of heater wire is passed on the cutting ferrule flange is welded on this end on the cutting ferrule flange.
The 4th step connected two head screws of oil pipe attaching nut and cutting ferrule flange, screwed nut.
In the 5th step, the electrode line of heater wire assembly is connected tapped hole connection on the buckle cutting ferrule flange by screw and first (or 3rd) fuel sucking pipe; The negative line of heater wire assembly is connected by the tapped hole that screw and second (or 4th) oil pipe is connected on the buckle cutting ferrule flange.
Further, as shown in Figure 4, described heating stick assembly 4 also comprises: hollow bolt 42, hollow seal pad 43.
Described hollow bolt 42 interior hole sizes match with the external diameter size of described heating stick 41, and hollow bolt 42 passes heating stick 41 and places the upper end of heating stick and carry out the welded seal processing; The size of described hollow seal pad 43 endoporus matches with the major diameter of thread size of described hollow bolt 42, and it passes the below that heating stick 41 places hollow bolt 42 hexagon heads; The top of described heating stick is provided with external terminal 411, and described external terminal 411 has two wiring pins.
Heating stick assembly provided by the present invention is finished parts, is a kind of heating stick assembly, so need not each parts is assembled in installation process, has both saved the installation time like this, has guaranteed again quality and the safety in utilization of heating stick assembly.This heating stick assembly has plurality of specifications, and the user can select the heating stick assembly voluntarily according to the difference of filter seat, the difference of filter element.
Based on said structure, the common port of described the second relay 22 working circuits is connected with an end of described heating stick assembly 4 and is specially: the common port of described the second relay 22 working circuits is connected with a wiring pin of described heating stick top terminal 411; The other end ground connection of described heating stick assembly 4 is specially: another wiring pin ground connection of described heating stick top terminal 411.
Based on said structure, install the heating stick assembly concrete steps can for but be not limited to following steps:
The first step is pulled down filter seat, and at this thread circle hole of center position brill, the size of described thread circle hole matches with the screw thread of described hollow bolt.
Second step is put into thread circle hole that filter seat bored with described heating stick assembly and is screwed and get final product.
In the 3rd step, the filter seat reinstall that installs the heating stick assembly is put, and install filter element and connect oil pipe and get final product.
Need to prove, above-mentioned steps is the situation that the heating stick assembly does not comprise filter seat, if described heating stick assembly also comprises: filter seat, described filter seat center position is provided with thread circle hole, and the size of described thread circle hole matches with the major diameter of thread size of described hollow bolt.Then install the heating stick assembly concrete steps can for: will not pull down with the filter seat of heating stick assembly in the former oil circuit, the filter seat that replaces with the heating stick assembly gets final product.
Optionally, in order to allow the user can know whether heating stick is in running order, as shown in Figure 5, this diesel oil oil way heating unit also comprises work indicator light 9; One end of described work indicator light 9 is connected with the common port of the second relay 22 working circuits, the other end ground connection of described work indicator light 9.
The below specifically describes the heating work process of this diesel oil oil way heating unit:
When ignition switch, the first switch opens, the first control relay circuit is connected, and first control circuit starts, the first relay working circuit is closed, the heater wire assembly circuit is connected, and the heater wire assembly is started working, and heater wire begins the diesel oil in the oil pipe is heated.
The diesel fuel temperature at temperature detect switch (TDS) Real-Time Monitoring filter cleaner place, when monitoring diesel fuel temperature and be lower than 5 ℃, temperature detect switch (TDS) is connected automatically.Because first control circuit starts, the second control relay circuit that is connected with this temperature detect switch (TDS) is closed, second control circuit is connected, heating stick assembly working circuit is connected, the heating stick assembly is started working, heating stick begins the diesel oil in the filter cleaner is heated, and work indicator light is opened simultaneously.
At heating stick to the diesel heating in the filter cleaner after a period of time, when the diesel fuel temperature that real-time monitors the filter cleaner place when temperature detect switch (TDS) arrives 25 ℃, the temperature detect switch (TDS) automatic disconnection, the second control relay circuit disconnects, the working circuit of heating stick assembly disconnects, the heating stick stopped heating, work indicator light extinguishes.Further, when temperature detect switch (TDS) real-time monitors diesel fuel temperature in the filter cleaner and is lower than 5 ℃, temperature detect switch (TDS) is connected automatically, the second control relay circuit is connected, the working circuit of heating stick assembly is connected, the heating stick assembly begins again task, and heating stick heats again to the diesel oil in the filter cleaner.
Need to illustrate, the work of heater wire assembly and heating stick assembly is carried out respectively, as long as ignition switch and the first switch on, the heater wire assembly is just always in running order, but the heating stick assembly is just in running order only when ignition switch and the first switch on, temperature detect switch (TDS) are also closed.So when temperature detect switch (TDS) monitors oil temperature in the filter cleaner and reaches 25 ℃, temperature detect switch (TDS) disconnects, the working circuit of heating stick assembly disconnects, the heating stick stopped heating, but the heater wire assembly still works on, diesel oil in oil pipe and the fuel sucking pipe between fuel tank and the coarse cleaner is continued heating, to guarantee that diesel oil keeps good flowability in the oil pipe.
The work of heating stick has been controlled in the adding of temperature detect switch (TDS), precision, has well controlled the oil temperature in the filter cleaner cavity, so that heat safer.
The embodiment of the invention also provides a kind of diesel oil oil circuit assembly, and diesel oil oil circuit assembly comprises fuel tank oil suction pipe, oil pipe, coarse cleaner, oil transfer pump, fine cleaner and diesel oil oil way heating unit; Wherein, described coarse cleaner, oil transfer pump, fine cleaner connect by oil pipe successively, and an end of described fuel tank oil suction pipe connects fuel tank, and the described fine cleaner the other end connects high pressure oil pump; The associated description of diesel oil oil way heating unit can be described referring to figs. 1 to the correspondence of Fig. 5, will repeat no more herein.
The embodiment of the invention also provides a kind of diesel engine, and this diesel engine comprises diesel oil oil circuit assembly as described in Figure 5.Wherein, the associated description of diesel oil oil circuit assembly can be described referring to figs. 1 to the correspondence of Fig. 5, will repeat no more herein.
Diesel oil oil way heating unit provided by the invention and comprise oil circuit assembly and the diesel engine of this device, adding pattern of fever with available technology adopting compares with the interior hot type heating equipment of speed heat, it is when heating the diesel oil oil circuit, by heater wire assembly built-in in the diesel oil oil circuit and the segmentation of heating stick assembly diesel oil is heated, its thermal efficiency is high, rate of warming is fast, and heater wire assembly and heating stick assembly all add in original oil circuit, so that its easy repacking.In addition, although heater wire is to be built in mailbox fuel sucking pipe and the oil pipe, its maximum service rating is no more than its fusing point, so the potential safety hazard of having avoided fast heat to cause; And for the use of heating stick assembly, controlled by temperature detect switch (TDS), it connects the circuit of heating stick assembly when monitoring diesel fuel temperature and be lower than uniform temperature, begin the diesel oil in the oil circuit is heated, and when monitoring diesel fuel temperature and be higher than uniform temperature, just disconnect the circuit of heating stick assembly, the heating work of stopped heating rod assembly, avoided because of the too high potential safety hazard that causes of heating stick heating-up temperature, so that this diesel oil oil way heating unit use is more safe and reliable, solved diesel car because of the diesel oil at low-temperature wax deposition, block oil pipe, the vehicle launch difficulty, the problem that can not normally travel reaches fuel-economizing, environmental protection, reduce vehicle operating cost, the purpose of increasing service life of engine.
In addition, the control circuit of the embodiment of the invention uses double fuse and double relay control circuit, so that maximum current reasonably controlled and distribute, thereby has guaranteed working stability and the safety reliability of this diesel oil oil way heating unit.
The above; be the specific embodiment of the present invention only, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (10)
1. a diesel oil oil way heating unit is characterized in that, comprising: first control circuit, second control circuit, at least one heater wire assembly, heating stick assembly, temperature detect switch (TDS);
One end of described first control circuit is connected with the 24V primary power supply, and an end of the other end and heater wire assembly and an end of temperature detect switch (TDS) are connected in parallel; The other end ground connection of described heater wire assembly;
One end of described second control circuit is connected with the 24V primary power supply, and the other end is connected with an end of heating stick assembly and the other end of temperature detect switch (TDS); The other end ground connection of described heating stick assembly;
Described heater wire assembly is arranged at oil pipe and the fuel tank oil suction pipe place between fuel tank and the coarse cleaner, and described heater wire assembly comprises heater wire, and described heater wire places in the cavity of oil pipe between described fuel tank and the coarse cleaner and fuel tank oil suction pipe; The maximum service rating of described heater wire is no more than its fusing point; Described heating stick assembly comprises heating stick, and described heating stick is arranged in the cavity of filter cleaner;
Described temperature detect switch (TDS) is arranged at the filter seat place, and the real time temperature in the monitoring oil circuit is controlled conducting and the disconnection of described heating stick assembly circuit.
2. diesel oil oil way heating unit according to claim 1 is characterized in that, described first control circuit comprises: ignition switch, the first switch, the first fus, the first relay; Described second control circuit comprises: the second fus, the second relay;
The voltage end that connects of described ignition switch and described the first switch and the first control relay circuit is connected in series successively, and the other end of described ignition switch is connected with described 24V primary power supply, the other end ground connection of described the first control relay circuit; The voltage end that connects of described the first fus and the first relay working circuit is connected in series, and the other end of described the first fus is connected with described 24V primary power supply; One end of the other end of described first control circuit and heater wire assembly and temperature detect switch (TDS) is connected in parallel and is specially: an end of the common port of described the first relay working circuit and heater wire assembly and an end of temperature detect switch (TDS) are connected in parallel;
The voltage end that connects of described the second fus and the second relay working circuit is connected in series, and the other end of described the second fus is connected with described 24V primary power supply; One end of the other end of described second control circuit and heating stick assembly and the other end of temperature detect switch (TDS) are connected and are specially: the voltage end that connects of described the second control relay circuit is connected with the other end of temperature detect switch (TDS); The common port of described the second relay working circuit is connected with an end of described heating stick assembly; The other end ground connection of described the second control relay circuit.
3. diesel oil oil way heating unit according to claim 2 is characterized in that, described heater wire assembly also comprises: at least two threaded cutting ferrule flanges in two;
Described cutting ferrule flange is positioned at the oil pipe joint, in the middle of two oil pipe attaching nuts; The top of described cutting ferrule flange is provided with external terminal and internal wiring end; Described external terminal is connected with the circuit power line, and the described internal wiring end heater wire interior with placing oil pipe is connected; One end of described heater wire is connected with the internal wiring end of the first cutting ferrule flange, and the other end is connected with the internal wiring end of the second cutting ferrule flange;
The common port of described the first relay working circuit is connected with an end of heater wire assembly and is specially: the common port of described the first relay working circuit is connected with the external terminal of described the first cutting ferrule flange; The other end ground connection of described heater wire assembly is specially: the external terminal ground connection of described the second cutting ferrule flange.
4. diesel oil oil way heating unit according to claim 2 is characterized in that, described heating stick assembly also comprises: hollow bolt, hollow seal pad;
The size of described hollow bolt endoporus matches with the external diameter size of described heating stick, and hollow bolt passes the upper end that heating stick places heating stick; The size of described hollow seal pad endoporus matches with the external diameter size of described hollow bolt screw thread, and it passes the below that heating stick places the hollow bolt hexagon head; The top of described heating stick is provided with external terminal, and described external terminal has two wiring pins;
The common port of described the second relay working circuit is connected with an end of described heating stick assembly and is specially: the common port of described the second relay working circuit is connected with a wiring pin of described heating stick top terminal; The other end ground connection of described heating stick assembly is specially: another wiring pin ground connection of described heating stick top terminal.
5. diesel oil oil way heating unit according to claim 4, it is characterized in that, described heating stick assembly also comprises: filter seat, and described filter seat center position is provided with thread circle hole, and the size of described thread circle hole matches with the screw thread of described hollow bolt.
6. each described diesel oil oil way heating unit is characterized in that according to claim 2-5, also comprises work indicator light; One end of described work indicator light is connected with the common port of the second relay working circuit, the other end ground connection of described work indicator light.
7. diesel oil oil way heating unit according to claim 6 is characterized in that, described heater wire is the wire of tape insulation layer, and its working power is 20 watts every meter.
8. diesel oil oil way heating unit according to claim 6 is characterized in that, the temperature-control range of described temperature detect switch (TDS) is: temperature detect switch (TDS) is connected when being lower than 5 ℃, and temperature detect switch (TDS) disconnects when being higher than 25 ℃.
9. a diesel oil oil circuit assembly comprises fuel tank oil suction pipe, oil pipe, coarse cleaner, oil transfer pump, fine cleaner; Wherein, described coarse cleaner, oil transfer pump, fine cleaner connect by oil pipe successively, and an end of described fuel tank oil suction pipe connects fuel tank, and the oil pipe of the described fine cleaner the other end connects high pressure oil pump; It is characterized in that, also comprise: such as each described diesel oil oil way heating unit among the claim 1-7.
10. a diesel engine is characterized in that, comprises diesel oil oil circuit assembly as claimed in claim 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310291176.2A CN103321791B (en) | 2013-07-12 | 2013-07-12 | Diesel oil oil way heating unit and oil circuit component and diesel engine comprising the device |
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| CN201310291176.2A CN103321791B (en) | 2013-07-12 | 2013-07-12 | Diesel oil oil way heating unit and oil circuit component and diesel engine comprising the device |
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| CN103321791B CN103321791B (en) | 2018-03-23 |
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| CN103321791B (en) | 2018-03-23 |
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