CN201650513U

CN201650513U - Oil tank heating device

Info

Publication number: CN201650513U
Application number: CN201020140665XU
Authority: CN
Inventors: 盛巧明
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-03-25
Filing date: 2010-03-25
Publication date: 2010-11-24
Anticipated expiration: 2020-03-25

Abstract

The utility model discloses an oil tank heating device, and solves the problems of avoiding incapability of starting due to the fact that diesel oil is changed into wax shape or an engine is switched off for a long period of time. The oil tank heating device can use normal temperature diesel oil in running process of the engine. The oil tank heating device comprises a control circuit, a minus oil tank, a first three-way electromagnetic valve, a second three-way electromagnetic valve, a water pump and a heating water pipe. The water pump, the first three-way electromagnetic valve and the second three-way electromagnetic valve are controlled by the control circuit; the first three-way electromagnetic valve is connected into an oil supply pipeline; the second three-way electromagnetic valve is connected into an oil return pipeline; and the water pump is connected onto the heating water pipe. A temperature control switch controls cooling water in an engine water tank to heat the oil tank and an oil pipe to lead an automobile to use normal temperature oil under low temperature, a manual function of the oil tank heating device changes oil inside the oil pipe into minus oil which is capable of starting the automobile after the automobile is switched off for a long period of time. The oil tank heating device is applicable to diesel engines in cold areas.

Description

The fuel tank heating equipment

Technical field

The utility model relates to a kind of diesel-oil vehicle fuel tank heating apparatus, especially relates to a kind of device that adopts the water in the engine water tank that fuel tank is heated.

Background technique

At present, a kind of important power source that Motor Vehicle uses is a diesel oil, yet the use of diesel oil can be had a strong impact under the low temperature.In the northern area of China, along with atmospheric temperature reduction in winter, the mobile performance variation of fuel oil can not normally be moved motor, and causes the automobile starting difficulty.When temperature was reduced to subzero, No. 0 diesel oil began to separate out wax, retrogradation, and viscosity increases, and mobile decline caused the atomizing effect variation, and it is insufficient to burn, and power character descends, and oil consumption increases, and befouling environment.Will change-No. 10 diesel oil into when temperature drops to-10 ℃ of left and right sides, when temperature drops to-20 ℃, change diesel oil into-No. 20, temperature descends again, will change diesel oil into-No. 35, because negative font size diesel-fuel price is higher, so caused the increasing of operating cost.In order to address the above problem, use electric heater that fuel oil in the fuel tank is heated in the prior art, but this electric heater exist the temperature rise time long, the thermal efficiency is low, maintenance difficult, user cost height, defective that safety coefficient is low.

Patent Office of the People's Republic of China discloses notice of authorization on December 16th, 2009 and number has been the patent documentation of CN201363207Y, and title is the environment-friendly and energy-efficient fuel tank heater.Its technological points is: the heating pipe is the U-shaped water pipe that is connected respectively with outlet pipe and return pipe, the water intake of U-shaped water pipe and water outlet utilize flange plate to be fixed on the fuel tank outside, the bottom of U-shaped water pipe is provided with the support tube that has internal and external screw thread that is communicated with it, support tube utilizes locking nut to be fixed on the lower end surface of fuel tank, the support tube port is provided with the waterproof plug, the tubing string outside, U-shaped water pipe both sides is set with fuel sucking pipe, the fuel sucking pipe upper end is welded on the flange plate, and utilizes transport pipe connecting the oil outlet tube that is provided with on the flange plate jointly.Utilize water heating oil pipe and fuel tank among the heating pipe, prevent to work when temperature is low.The deficiency of this scheme is lower and when flame-out for a long time, oil can be set in oil pipe and the fuel tank, is difficult to start, and causes and can not work when temperature.

Summary of the invention

The utility model mainly is to solve the problem that is difficult to start after existing in prior technology is stopped working for a long time, provides a kind of and is hanging down the long-time flame-out fuel tank heating equipment that still can start later under the temperature condition.

Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of fuel tank heating equipment, comprise control circuit, the negative sign fuel tank, first three-way magnetic valve, second three-way magnetic valve, water pump and heating pipe, control circuit comprises single-pole double-throw switch (SPDT), first temperature detect switch (TDS), second temperature detect switch (TDS) and power supply, first utmost point of power supply connects the movable contact of single-pole double-throw switch (SPDT), second utmost point of power supply is connected with water pump, first three-way magnetic valve and the second three-way magnetic valve parallel connection are connected on later between the manual stationary contact of second utmost point of power supply and single-pole double-throw switch (SPDT), first temperature detect switch (TDS) is connected between the temperature control stationary contact of water pump and single-pole double-throw switch (SPDT), second temperature detect switch (TDS) is connected between the temperature control stationary contact and manual stationary contact of single-pole double-throw switch (SPDT), water pump is linked to be the loop by heating pipe and radiator of car engine, heating pipe and oil feed line, return line is close to and some enters in the normal temperature fuel tank, first three-way magnetic valve is connected in the oil feed line, and second three-way magnetic valve is connected in the return line.First three-way magnetic valve all is connected normal temperature fuel tank and negative sign fuel tank respectively with second three-way magnetic valve.Some U type metal tubes of heating pipe extends in the normal temperature fuel tank simultaneously, is inlaid with heat exchange fins on U type metal tubes, is used for heating to the normal temperature fuel tank.Movable contact with single-pole double-throw switch (SPDT) in the engine operation process connects the temperature control stationary contact.Temperature low excessively second temperature detect switch (TDS) control three-way magnetic valve of sending out when touching in measured point is selected negative sign fuel tank fuel feeding.The measured point temperature cross trigger when low first temperature detect switch (TDS) when closed pump working cooling liquid that temperature is higher via the heating pipe to normal temperature fuel tank and oil feed line, return line heating.Long-time flame-out or spend the night before several minutes movable contacts with single-pole double-throw switch (SPDT) connect manual stationary contact, wait the normal temperature oil emptying in oil feed line and the return line after (about 2-3 minute) flame-out again, can directly move when start next time with the negative sign fry dried food ingredients.

For preferably, the temperature inductor of first temperature detect switch (TDS) and second temperature detect switch (TDS) is affixed on the oil feed line.First temperature detect switch (TDS) and second temperature detect switch (TDS) are controlled three-way magnetic valve and water pump by the temperature on the induction oil feed line.

As preferably, first temperature detect switch (TDS) is that break-off signal is 40 degrees centigrade, and closed temperature is 5 degrees centigrade a temperature detect switch (TDS); Second temperature detect switch (TDS) is that operating temperature is 5 degrees centigrade a temperature detect switch (TDS).

As preferably, first temperature detect switch (TDS) and second temperature detect switch (TDS) are two switches of multiloop temperature controller.Adopt the accurately temperature sensor variation of multiloop temperature controller, more reliable.

As preferably, the part of heating pipe in the normal temperature fuel tank uses magnet to be fixed on normal temperature fuel tank bottom.Can guarantee heating pipe's stable also convenient assembling and disassembling in use like this.

As preferably, the current that water pump is installed in the heating pipe postback an end of motivation water tank.Can allow by the coolant-temperature gage of water pump lowlyer like this, effectively prolong working life of water pump.

The beneficial effect that the utility model brings is, can avoid the flame-out for a long time problem of bringing that can't start of occurs at low temperatures motivation, can use normal temperature diesel oil in engine operation process, saves cost, environmental protection, and simple in structure, control is conveniently.

Description of drawings

Fig. 1 is a kind of electrical block diagram of the present utility model;

Fig. 2 is a kind of pipeline structure schematic representation of the present utility model;

Fig. 3 is a kind of first three-way magnetic valve connection diagram of the present utility model.

Among the figure: 1, power supply, 2, the temperature control stationary contact, 3, movable contact, 4, manual stationary contact, 5, first three-way magnetic valve, 6, second three-way magnetic valve, 7, multiloop temperature controller, 8, water pump, 9, the normal temperature fuel tank, 10, negative sign fuel tank, 11, return line, 12, lagging, 13, heating pipe, 14, temperature inductor, 15, oil feed line, 71, first temperature detect switch (TDS), 72, second temperature detect switch (TDS).

Embodiment

Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.

Embodiment: the fuel tank heating equipment of present embodiment, comprise control circuit, negative sign fuel tank 10, first three-way magnetic valve 5, second three-way magnetic valve 6, water pump 8 and heating pipe 13, control circuit as shown in Figure 1, comprise single-pole double-throw switch (SPDT), multiloop temperature controller 7, water pump 8 and power supply 1, single-pole double-throw switch (SPDT) comprises temperature control stationary contact 2, movable contact 3 and manual stationary contact 4, multiloop temperature controller 7 comprises first temperature detect switch (TDS) 71, second temperature detect switch (TDS) 72 and temperature inductor 14, temperature inductor 14 is fitted on the oil feed line 15, first utmost point of power supply 1 connects the movable contact 3 of single-pole double-throw switch (SPDT), second utmost point of power supply 1 is connected with water pump 8, be connected on after first three-way magnetic valve 5 and second three-way magnetic valve 6 are in parallel between the manual stationary contact 4 of second utmost point of power supply 1 and single-pole double-throw switch (SPDT), first temperature detect switch (TDS) 71 is connected between water pump 8 and the temperature control stationary contact 2, second temperature detect switch (TDS) 72 is connected between temperature control stationary contact 2 and the manual stationary contact 4, water pump 8 is linked to be the loop by heating pipe 13 with radiator of car engine, and the current that are installed in the heating pipe postback an end of motivation water tank.As shown in Figure 2, oil feed line 15, return line 11 and heating pipe 13 fit together and are surrounded by lagging 12 in the periphery, improve heat insulation effect.Heating pipe's 13 some many continuous U type metal tubes extend in the normal temperature fuel tank 9, and are fixed on the bottom of normal temperature fuel tank 9 by magnet, are inlaid with heat exchange fins on U type metal tubes, are used for to 9 heating of normal temperature fuel tank.First three-way magnetic valve 5 is two to advance one and go out three-way magnetic valve, connects as shown in Figure 3, and an import connects normal temperature fuel tank 9, and another import connects negative sign fuel tank 10, and outlet connects oil feed line 15, negative sign fuel tank 10 fuel feeding during energising, normal temperature fuel tank 9 fuel feeding during outage.Second three-way magnetic valve 6 is two to go out one and advance three-way magnetic valve, and import connects 11, one outlets of return line and connects normal temperature fuel tank 9, and another outlet connects negative sign fuel tank 10, and oil is got back to negative sign fuel tank 10 during energising, and oil is got back to normal temperature fuel tank 9 during outage.The first temperature detect switch (TDS) break-off signal is 40 degrees centigrade, and closed temperature is 5 ℃ degrees centigrade; The operating temperature of second temperature detect switch (TDS) is 5 ℃ degrees centigrade.

Claims

1. fuel tank heating equipment, it is characterized in that, comprise control circuit, negative sign fuel tank (10), first three-way magnetic valve (5), second three-way magnetic valve (6), water pump (8) and heating pipe (13), described control circuit comprises single-pole double-throw switch (SPDT), first temperature detect switch (TDS) (71), second temperature detect switch (TDS) (72) and power supply (1), first utmost point of described power supply (1) connects the movable contact (3) of single-pole double-throw switch (SPDT), second utmost point of described power supply (1) is connected with described water pump (8), be connected on after described first three-way magnetic valve (5) and described second three-way magnetic valve (6) are in parallel between the manual stationary contact (4) of second utmost point of described power supply (1) and described single-pole double-throw switch (SPDT), described first temperature detect switch (TDS) (72) is connected between the temperature control stationary contact (2) of described water pump (8) and described single-pole double-throw switch (SPDT), described second temperature detect switch (TDS) (72) is connected between the temperature control stationary contact (2) and manual stationary contact (4) of described single-pole double-throw switch (SPDT), described water pump (8) is linked to be the loop by heating pipe (13) with radiator of car engine, described heating pipe (13) and oil feed line (15), return line (11) is close to and some enters in the normal temperature fuel tank (9), described first three-way magnetic valve (5) is connected in the oil feed line (15), and described second three-way magnetic valve (6) is connected in the return line (11).

2. fuel tank heating equipment according to claim 1 is characterized in that, the temperature inductor (14) of described first temperature detect switch (TDS) (71) and second temperature detect switch (TDS) (72) is affixed on the oil feed line (15).

3. fuel tank heating equipment according to claim 1 and 2 is characterized in that, described first temperature detect switch (TDS) (71) is that break-off signal is 40 degrees centigrade, and closed temperature is 5 degrees centigrade a temperature detect switch (TDS); Described second temperature detect switch (TDS) (72) is that operating temperature is 5 degrees centigrade a temperature detect switch (TDS).

4. fuel tank heating equipment according to claim 1 and 2 is characterized in that, described first temperature detect switch (TDS) (71) and described second temperature detect switch (TDS) (72) are two switches of multiloop temperature controller (7).

5. fuel tank heating equipment according to claim 3 is characterized in that, described first temperature detect switch (TDS) (71) and described second temperature detect switch (TDS) (72) are two switches of multiloop temperature controller (7).

6. fuel tank heating equipment according to claim 1 is characterized in that, described heating pipe (13) uses magnet to be fixed on normal temperature fuel tank (9) bottom in the part of normal temperature fuel tank (9) lining.

7. fuel tank heating equipment according to claim 1 is characterized in that, described water pump (8) is installed in heating pipe's (13) backwater end.