CN102758707A - Heating system for crane - Google Patents
Heating system for crane Download PDFInfo
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- CN102758707A CN102758707A CN2012101828068A CN201210182806A CN102758707A CN 102758707 A CN102758707 A CN 102758707A CN 2012101828068 A CN2012101828068 A CN 2012101828068A CN 201210182806 A CN201210182806 A CN 201210182806A CN 102758707 A CN102758707 A CN 102758707A
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Abstract
The invention discloses a heating system for a crane, which comprises a heater, wherein the heater is provided with a water inlet and a water outlet which is respectively connected with an engine oil tank and a heating air system, and an oil temperature control electromagnetic valve and a water temperature control electromagnetic valve are respectively arranged on a water path for heating the oil tank and the heating air system; an oil temperature sensor is arranged in the oil tank, a water temperature sensor is arranged in the water tank in the heating air system, and an electric control unit and an oil absorbing pump are arranged on a fuel oil pipe; and the electric control unit is used for comparing actual oil temperature and actual water temperature with a critical value respectively and adjusting the openness of the oil temperature control electromagnetic valve and the openness of the water temperature control electromagnetic valve according to comparison results. The heating system provided by the invention realizes synchronous heating of fuel oil and the heating air system and automatic temperature adjustment, is more balanced to heat and improves the heating efficiency.
Description
Technical field
The present invention relates to the Engineering Control technical field, particularly a kind of heating system that is used for hoist.In addition, the invention still further relates to a kind of hoist that comprises said heating system.
Background technique
When hoist in psychro-environment during operation, in order to start hoist and crane job faster the time fluid can be because of low temperature phenomenon of blocking, need carry out preheating so that fuel delivery is sufficient to fuel oil; Simultaneously, in order to guarantee that having certain preference temperature in the operator cabin when the operation carries out high and cold operation, need heat warm air system.
Heater commonly used heats with the temperature of raising fuel oil and the preheating performance of warm braw fuel tank and warm air system on the hoist at present; The concrete structure of heater is as shown in Figure 2, in heater 1, is provided with oil sprayer and firing chamber, and fuel oil is through filler opening 101 entering firing chambers; Burn with the air mixing that gets into by suction port 105; Release heat, heating is flowed out the water that gets into heater 1 from water intake 103 by engine water jacket, and the water after being heated flows out flow through then engine oil tank and warm air system from water outlet 102; Respectively fuel oil and water are heated, and waste gas after burning is directly discharged by waste gas outlet 104.
In the heating process of heater 1, the tail gas to its discharge does not carry out any processing, and any noise reducing apparatus is not installed yet; Cause the exhaust emissions of heater 1 to exceed standard; Cause atmospheric pollution, and operational noise is bigger, and easy and engine noise formation noise radiation.
The fuel delivery of heater is independent of outside the engine fuel supply system; The general fuel tank that adopts the 18L specification; As shown in Figure 3, supply reservoir 2 adopts vertical installation, and oil scavenge pump 3 is assemblied near supply reservoir 2 upper ends through mounting bracket 5; Fuel pipe 4 links to each other with the filler opening 101 of heater 1, to heater 1 fuel oil to be provided.
Because filter cleaner is not installed in oil supply system fuel oil is carried out filtering, it is insufficient to make that fuel oil burns in heater 1, fuel consumption is big, and the phenomenon of black smoke can occur arranging, causes higher heat loss and atmospheric pollution; In addition, because supply reservoir 2 capacity are less relatively, and the fuel consumption of heater is bigger during crane job, needs refuel to fuel tank repeatedly, causes fuel delivery inconvenience.
Heater is as shown in Figure 1 to the heating principle of fuel oil and warm air system, and this heating circulation system is without the cooling major cycle of motor, specifically; Under the pressure of water pump drove, the flow of liquid in the engine water jacket was opened heater switch when the warm braw water outlet, and at this moment liquid flows in the heater; Meanwhile, oil scavenge pump is supplied with fuel oil in heater from supply reservoir, and fuel oil burns in heater inner firing chamber and air mixing; Thereby the liquid heat of convection current heater via, the flow of liquid after being heated realize the heating to fuel oil and warm braw through fuel tank and warm air system; After this liquid comes back in the engine water jacket through water pump; Accomplish this heat cycles, then get into next heat cycles, continue fuel oil and warm air system are heated.
Because this heating system heats fuel oil and warm braw simultaneously; The flow of fuel tank and warm air system of flowing through is not regulated; Make the temperature of warm braw raise comparatively fast, the temperature of fuel oil then raises not obvious, makes whole heating process consuming time longer; The heat distribution of heating system is unbalanced, causes the efficiency of heating surface very low.
Therefore, how the heating-up temperature of fuel oil and warm air system is carried out auto-control, make the heating of fuel oil and warm air system balanced more, improving the efficiency of heating surface is those skilled in the art's technical issues that need to address.
Summary of the invention
The purpose of this invention is to provide a kind of heating system that is used for hoist, this heating system can make heating balanced more to the heating-up temperature auto-control of fuel oil and warm braw, improves the efficiency of heating surface.Another object of the present invention provides a kind of hoist that comprises said heating system.
For solving the problems of the technologies described above; The present invention provides a kind of heating system that is used for hoist; Comprise heater; The water outlet that said heater is provided with water intake and is connected with warm air system with engine oil tank respectively, the water route that is flowed to said fuel tank by said heater is provided with oily temperature control solenoid valve, and the water route that is flowed to warm air system by said heater is provided with the water temperature control electromagnetic valve; In said fuel tank, be provided with oil temperature sensor, be provided with cooling-water temperature sensor in the water tank in said warm air system; Said fuel pipe is provided with ECU and oil scavenge pump; Said ECU is used for the actual oil temperature of said oil temperature sensor and the input of said cooling-water temperature sensor and actual water temperature are compared with critical value respectively; The aperture of regulating oily temperature control solenoid valve and water temperature control electromagnetic valve according to comparative result is big or small, so that regulate the water yield of flow through said fuel tank and said warm air system.
Preferably, when actual oil temperature and actual water temperature all reached critical oil temperature and critical water temperature respectively, it is closed that said ECU is controlled said heater button.
Preferably, the outlet pipe of said heater is provided with catalyst and particulate filter.
Preferably, the outlet pipe of said heater is provided with silencing apparatus.
Preferably, the inner chamber of said silencing apparatus is divided into all unequal three compartments of volume by dividing plate, and said dividing plate is provided with the hole; So that ventilate between each compartment; The sidewall of said dividing plate is provided with the superelevation sound-absorbing material, and the suction tude of said silencing apparatus runs through three compartments and is connected with the outlet pipe of said heater, air inlet in the 3rd compartment; In first compartment, also be provided with exhaust elbow, said exhaust elbow runs through three compartments and communicates with the external world.
Preferably, be provided with water pump in the water inlet of said heater.
Preferably, said heater is connected with said fuel tank through said fuel pipe.
Preferably, said fuel pipe is provided with fuel filter.
Preferably, be connected, so that show actual oil temperature and actual water temperature in real time at the instrument panel of said ECU with the operator cabin of hoist.
The present invention also provides a kind of hoist, comprises engine water jacket, and said engine water jacket is connected with above-mentioned any described heating system.
Begin operation at hoist; When fuel tank and warm air system are heated; Fuel oil burns the said fuel pipe firing chamber that oil scavenge pump and ECU get into said heater of flowing through in the effect lower edge of oil scavenge pump, release heat, and heating is by the flow through water of said heater of engine water jacket; The water that is heated after the intensification is flowed out by the water outlet of said heater; Respectively flow direction engine fuel tank and warm air system, the oil temperature sensor that is arranged in the said fuel tank is input to the ECU that is arranged on the said fuel pipe with actual oil temperature and actual water temperature respectively with cooling-water temperature sensor in the water tank that is arranged on said warm air system, and said ECU is compared actual oil temperature and actual water temperature respectively at critical value; Adjust respectively according to comparative result and to be arranged on the aperture size that is used to heat the oily temperature control solenoid valve on the said fuel tank water route and to be arranged on the aperture size that is used to heat the water temperature control electromagnetic valve on the warm air system water route; If the difference of actual value and critical value is big more, the aperture of corresponding solenoid valve is just big more, and the water yield in this heating water route of flowing through is big more; So that the temperature on this water route is carried out auto-control, temperature is raise as soon as possible.
Heating system provided by the present invention is through the aperture size of the solenoid valve on two heating of ECU control water route; And then adjust the flow in the said heater rising pipe; Realized independent synchronous heating, and can the temperature of engine oil tank and warm air system have been automatically adjusted, added thermal balance, efficient height engine oil tank and warm air system; Have energy-saving effect preferably, and low being easy to of controlling cost realized.
In a kind of preferably mode of execution; Also be provided with catalyst on the outlet pipe of said heater; Fine particulate matter in the tail gas is filtered and harmful gas is converted to innocuous gas, make tail gas reach emission standard, reduce pollution environment.
Preferably in the mode of execution, also be provided with silencing apparatus at another kind on the outlet pipe of said heater, help to reduce the noise in the exhaust process, improve operating environment.
Preferably in the mode of execution, said fuel pipe is provided with fuel filter, and the fuel oil that gets into said heater is filtered, so that fuel oil as much as possible fully burns, improves the thermal efficiency at another kind.
In addition, the present invention also provides a kind of hoist that comprises said heating system, and this hoist has the effect identical with said heating system.
Description of drawings
Fig. 1 is the structural representation of heater in the existing technology;
Fig. 2 is a heating system circulation schematic representation in the existing technology;
Fig. 3 is the fuel oil supply system schematic representation of heating system in the existing technology;
Fig. 4 is a heater structure schematic representation in a kind of embodiment of heating system provided by the present invention;
Fig. 5 is the fuel oil supply system schematic representation of heating system shown in Figure 4;
Fig. 6 is a temperature control block diagram in a kind of embodiment of heating system provided by the present invention;
Fig. 7 is the partial enlarged drawing at the A position of heater shown in Figure 4.
Embodiment
Core of the present invention provides a kind of heating system that is used for hoist, and heating system can make heating balanced more to the heating-up temperature auto-control of fuel oil and warm braw, improves the efficiency of heating surface.Another core of the present invention provides a kind of hoist that comprises said heating system.
In order to make those skilled in the art person understand the present invention program better, the present invention is done further detailed description below in conjunction with accompanying drawing and embodiment.
Please refer to Fig. 4 and Fig. 5, Fig. 4 is a heater structure schematic representation in a kind of embodiment of heating system provided by the present invention; Fig. 5 is the fuel oil supply system schematic representation of heating system shown in Figure 4.
In a kind of embodiment; Heating system provided by the present invention comprises heater 1, and filler opening 101 is arranged on heater 1, and 101 places are connected with fuel pipe 12 at filler opening; Fuel oil gets into heater 1 inside by fuel pipe 12; Spray in the firing chamber by oil sprayer, and burn, and tail gas is discharged by relief opening 104 by the air mixing of intake grill 105 entering firing chambers; On heater 1, also be provided with water intake 103 and water outlet 102; Water in the engine water jacket is by water intake 103 heater 1 of flowing through; Flowed out by water outlet 102 by high-temperature fuel gas heating back at heater 1, the moisture that flows out heater 1 is two-part, the fuel tank 7 of a part of flow direction engine; A part flows to the water tank of warm braw, so that simultaneously fuel oil and warm air system are heated.
In order to improve the flowability of the water of heating in the water route, can also further be provided with water pump 3 in the water inlet of said heater, this water pump 3 is fixed on the intake pipe through fixing device.
The other end of the fuel pipe 12 that is connected with the filler opening 101 of heater 1 can directly be connected with the fuel tank 7 of motor, and it is heater 1 fuel feeding that supply reservoir needn't be set in addition again, to reduce the shared space of heating system; As shown in Figure 5; Fuel pipe 12 is fixed on the fuel tank cap through oil pipe clip 8, and the one of which end gos deep in the fluid, and the pipeline that fuel pipe 12 is positioned at above the fuel tank 7 is provided with the oil scavenge pump 13 of forcing driving fluid to transport; Oil scavenge pump 13 can be fixed on the fuel pipe 12 through vibrationproof retainer ring 14; Preventing the normal fuel delivery of its influence of vibration, can be provided with solenoid electric valve 15 at an end of oil scavenge pump 13, to realize adjusting to fuel supply volume.
ECU 11 can be arranged on the fuel pipe 12, also can be arranged on other positions.
With reference to figure 6, Fig. 6 is a temperature control block diagram in a kind of embodiment of heating system provided by the present invention.
In the fuel tank 7 of motor, be provided with oil temperature sensor 16, this sensor can be connected on the pipeline of the fuel pipe 12 that is arranged in fuel oil, is provided with cooling-water temperature sensor in the water tank in warm air system; The output terminal of oil temperature sensor 16 and cooling-water temperature sensor all is connected to ECU 11, so that actual oil temperature and actual water temperature information are input to ECU 11.
The water route that is flowed to fuel tank 7 by heater 1 is provided with oily temperature control solenoid valve; This oil temperature control solenoid valve is by ECU 11 controls; That is to say that ECU 11 can regulate the aperture size of oily temperature control solenoid valve; Then realize adjusting, so that the temperature of control fuel tank 7 intermediate fuel oils to the size of the water flow on this pipeline; The water route that is flowed to warm air system by heater 1 is provided with the water temperature control electromagnetic valve; Equally; ECU 11 can be regulated the aperture size of this water temperature control electromagnetic valve; Water yield size on this pipeline of flowing through is regulated, so that the temperature of the water in the water tank in the warm air system is controlled in real time.
In ECU 11, be provided with critical oil temperature and critical water temperature in advance, critical oil temperature can be set to 20 ℃, and critical water temperature can be set to 50 ℃; After oil temperature sensor and cooling-water temperature sensor are sent to ECU 11 with actual oil temperature and actual water temperature, this ECU 11 with the gentle actual water temperature of time oil respectively with critical oil temperature and critical water temperature relatively, the aperture of adjusting oily temperature control solenoid valve and water temperature control electromagnetic valve according to the difference of true temperature and critical value respectively is big or small; So that will distribute by the high temperature water yield that heater 1 flows out, regulate the flow on the water route separately, fuel oil in the fuel tank 7 and warm air system are evenly heated; Specifically, if the rising of the water temperature in heating process in the warm air system is higher, fuel oil temperature raises slower; The difference of actual water temperature and its critical value is little than the difference of actual oil temperature and its critical value, and ECU 11 input signals then reduce the aperture of water temperature control electromagnetic valve; The aperture of oily temperature control solenoid valve is increased; With the water yield of the less warm air system of flowing through, increase the water yield of the fuel tank 7 of flowing through, improve the temperature rise rate of fuel oil; If the difference of actual water temperature and its critical value is big than the difference of actual oil temperature and its critical value; Then ECU 11 increases the aperture of water temperature control electromagnetic valve, the aperture of oily temperature control solenoid valve is reduced, with the rise rate of high water temperature.
For fear of after actual oil temperature and actual water temperature all reach critical temperature separately; Heater continues fuel oil and warm air system are heated; Cause certain loss; This ECU 11 can be after true temperature all reaches critical temperature the switch on of control heater 1, stop heating to fuel oil and warm air system; If actual oil temperature or actual water temperature are reduced to critical value when following once more; ECU 11 can be controlled the switch open of heater 1 once more; Again fuel oil or warm air system are heated, guarantee that the water temperature of the oily gentle warm air system in the engine oil tank in the crane job process all remains on more than the critical value.
In order to realize real-time demonstration to actual oil temperature and actual water temperature; On ECU 11, can also be connected with the CAN line; Insert in the bridge instrumentation dish, like this, ECU 11 receives temperature signal from oil temperature sensor and cooling-water temperature sensor after; Can this temperature signal be shown in instrument panel, so that the driver better understands the job state of hoist.
Begin operation at hoist; When fuel oil and warm air system were heated, at first under the effect of oil scavenge pump 13, fuel oil got into heaters 1 by engine oil tank 7 oil scavenge pump 13 of flowing through with ECU 11; Fuel oil is in the firing chamber and the air mixing after-combustion of heater 1 inside; Release heat, the water heating of the heater 1 of will from engine water jacket, flowing through simultaneously is divided into two-part after water outlet 102 outflows of the water after the high-temperature fuel gas heating through heater 1; The flow through fuel tank 7 of oily temperature control solenoid valve flow direction engine of a part; The part water temperature control electromagnetic valve of flowing through flows to the water tank of warm air system, simultaneously fuel oil and warm air system are heated, and the tail gas in the firing chamber is discharged through the relief opening 104 of heater 1; Cooling-water temperature sensor sends actual oil temperature and actual water temperature to ECU 11 respectively in oil temperature sensor in the fuel tank 7 and the water tank; ECU 11 compares actual oil temperature and actual water temperature respectively with separately critical value; Regulate the aperture size of oily temperature control solenoid valve and water temperature control electromagnetic valve respectively according to comparative result; And then the fuel tank 7 of flowing through regulated the water flow on two water routes of reasonable distribution with the water yield of the warm air system of flowing through.
Heating system provided by the present invention is through the automatic adjusting of 11 pairs of solenoid valve aperture sizes of ECU; Realized the synchronous heating of fuel oil and warm air system and the intelligent control of oily gentle warm braw temperature; Make fuel oil and warm braw remain on suitable temperature always; Its efficiency of heating surface is high, has energy-saving effect preferably, and whole system low being easy to of controlling cost realized.
In a kind of embodiment; In order effectively to be suppressed at the phenomenon that oil inflame insufficient or when burning over-emitting black exhaust appears in heater 1 inside; On fuel pipe 12, can also be provided with fuel filter 10, as shown in Figure 5, in addition; In order further to improve the filter effect, can also be provided with filter screen 17 at the end that fuel pipe 12 is in the pipeline in the fuel oil.
In another kind of embodiment, can be connected with exhaust hose 6 at relief opening 104 places of heater 1, this exhaust hose 6 can be fixed on relief opening 104 places of heater 1 through fixed tray 601; On exhaust hose 6, further be connected with outlet pipe; In outlet pipe, can further be provided with catalyst 5 and particulate filter (not marking among the figure), shown in Fig. 4, this catalyst 5 has the effect that tail gas is purified; Simultaneously; Can also convert not clean-burning gas in the tail gas to innocuous gas, and particulate filter can be to being filtered by the molecule in the tail gas of discharging in the heater 1, its filtering effect is generally more than 90%; Tail gas after filtering and changing is entered in the air again, significantly reduced of the pollution of discharging tail gas atmosphere.
On the outlet pipe of heater 1, can also further be provided with silencing apparatus 4, under the noise elimination effect of silencing apparatus 4, reduce the exhaust sound of heater 1, help to improve operating environment.
The concrete form of silencing apparatus 4 is more; The concrete form of silencing apparatus 4 provided by the present invention can for: the inner chamber of silencing apparatus 4 is divided into three compartments by two dividing plates 402, and the volume of three compartments has nothing in common with each other, and is as shown in Figure 7; Three compartments are followed successively by first compartment 404, second compartment 405 and the 3rd compartment 406; Dividing plate 402 is provided with the hole, so that can ventilate mutually between three compartments, in order to increase the noise elimination effect of silencing apparatus 4; On the sidewall of dividing plate 402, can also be provided with the superelevation sound-absorbing material, like glass fibre or mineral substance cotton etc.; The suction tude 403 of silencing apparatus 4 is connected with the exhaust outlet of heater; And suction tude 403 runs through three compartments; Its air outlet is arranged in the 3rd compartment 406, and silencing apparatus 4 is provided with exhaust elbow 407 in first compartment 404, and this exhaust elbow 407 runs through three compartments and communicates with the external world; In addition, the periphery of silencing apparatus 4 is provided with heat-proof device 401, can adopt elasticity to be connected between the housing of this heat-proof device 401 and silencing apparatus 4, to reduce the impulse oscillation in silencing apparatus 4 exhaust processes.
Tail gas is got in the 3rd compartment 406 of silencing apparatus 4 by the outlet pipe of heater 1; Flow to second compartment 405 and first compartment 404 in order; In flow process because the volume of each compartment is different and turn to when mobile; And under the sound absorption of the superelevation sound-absorbing material on the dividing plate, produce the noise elimination effect; In first compartment 404, tail gas gets into exhaust elbow 407 backs and gets into atmosphere, and an exhaust switching-over has taken place again in this process, has further reduced exhaust sound.
407 places can also be provided with the Hai Muhuosi resonator at exhaust elbow, are used for regulating the interfering frequency composition of tail gas, further optimize the noise elimination effect.
Except said heating system, the present invention also provides a kind of hoist that comprises said heating system, and the structure of these other each several parts of hoist please refer to existing technology, and this paper repeats no more.
More than heating system provided by the present invention and hoist with this heating system have been carried out detailed introduction.Used concrete example among this paper principle of the present invention and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (10)
1. heating system that is used for hoist; Comprise heater; The water outlet that said heater is provided with water intake and is connected with warm air system with engine oil tank respectively; It is characterized in that the water route that is flowed to said engine oil tank by said heater is provided with oily temperature control solenoid valve, the water route that is flowed to warm air system by said heater is provided with the water temperature control electromagnetic valve; In said engine oil tank, be provided with oil temperature sensor, in the water tank of said warm air system, be provided with cooling-water temperature sensor; Said heating system further comprises ECU; Said ECU is used for the actual oil temperature of said oil temperature sensor and the input of said cooling-water temperature sensor and actual water temperature are compared with critical oil temperature and critical water temperature respectively; The aperture of regulating oily temperature control solenoid valve and water temperature control electromagnetic valve according to comparative result is big or small, so that regulate the water yield of flow through said fuel tank and said warm air system.
2. according to the heating system shown in the claim 1, it is characterized in that when actual oil temperature and actual water temperature all reached critical oil temperature and critical water temperature respectively, it is closed that said ECU is controlled said heater button.
3. according to the heating system shown in the claim 1, it is characterized in that the outlet pipe of said heater is provided with catalyst and particulate filter.
4. according to the heating system shown in the claim 1, it is characterized in that the outlet pipe of said heater is provided with silencing apparatus.
5. according to the heating system shown in the claim 4; It is characterized in that the inner chamber of said silencing apparatus is divided into all unequal three compartments of volume by dividing plate, said dividing plate is provided with the hole; So that ventilate between each compartment; The sidewall of said dividing plate is provided with the superelevation sound-absorbing material, and the suction tude of said silencing apparatus runs through three compartments and is connected with the outlet pipe of said heater, air inlet in the 3rd compartment; In first compartment, also be provided with exhaust elbow, said exhaust elbow runs through three compartments and communicates with the external world.
6. according to the heating system shown in the claim 1, it is characterized in that, be provided with water pump in the water inlet of said heater.
7. according to the heating system shown in the claim 1, it is characterized in that said heater is connected with said engine oil tank through fuel pipe.
8. according to the heating system shown in the claim 7, it is characterized in that said fuel pipe is provided with fuel filter.
9. according to the heating system shown in the claim 1, it is characterized in that, be connected, so that show actual oil temperature and actual water temperature at the instrument panel of said ECU with the operator cabin of hoist.
10. a hoist comprises engine water jacket, it is characterized in that, said engine water jacket is connected with like any described heating system of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101828068A CN102758707A (en) | 2012-06-05 | 2012-06-05 | Heating system for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101828068A CN102758707A (en) | 2012-06-05 | 2012-06-05 | Heating system for crane |
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| CN102758707A true CN102758707A (en) | 2012-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012101828068A Pending CN102758707A (en) | 2012-06-05 | 2012-06-05 | Heating system for crane |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594005A (en) * | 2016-12-28 | 2017-04-26 | 湖南工业大学 | Device for preheating engineering vehicle hydraulic oil by using operation room air heating system |
| CN109139328A (en) * | 2018-09-29 | 2019-01-04 | 潍柴重机股份有限公司 | Engine thermal management systems and its management method |
| CN112349490A (en) * | 2020-11-03 | 2021-02-09 | 国网山东省电力公司寿光市供电公司 | Transformer with respiration monitoring control function |
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| CN201343392Y (en) * | 2009-02-09 | 2009-11-11 | 廊坊市管道人机械设备有限公司 | Pipe hoist capable of adapting to ultra low temperature environment |
| CN201574852U (en) * | 2009-12-21 | 2010-09-08 | 李喜春 | Device adopting cooling liquid of diesel motor to heat oil tank |
| CN102072062A (en) * | 2011-01-18 | 2011-05-25 | 中国重汽集团济南动力有限公司 | Low-temperature preheating device used for motor vehicle |
| CN201933529U (en) * | 2010-12-17 | 2011-08-17 | 徐州徐工挖掘机械有限公司 | Low temperature heating device of excavator |
| CN202673489U (en) * | 2012-06-05 | 2013-01-16 | 徐州重型机械有限公司 | Heating system for crane |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201343392Y (en) * | 2009-02-09 | 2009-11-11 | 廊坊市管道人机械设备有限公司 | Pipe hoist capable of adapting to ultra low temperature environment |
| CN201574852U (en) * | 2009-12-21 | 2010-09-08 | 李喜春 | Device adopting cooling liquid of diesel motor to heat oil tank |
| CN201933529U (en) * | 2010-12-17 | 2011-08-17 | 徐州徐工挖掘机械有限公司 | Low temperature heating device of excavator |
| CN102072062A (en) * | 2011-01-18 | 2011-05-25 | 中国重汽集团济南动力有限公司 | Low-temperature preheating device used for motor vehicle |
| CN202673489U (en) * | 2012-06-05 | 2013-01-16 | 徐州重型机械有限公司 | Heating system for crane |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594005A (en) * | 2016-12-28 | 2017-04-26 | 湖南工业大学 | Device for preheating engineering vehicle hydraulic oil by using operation room air heating system |
| CN109139328A (en) * | 2018-09-29 | 2019-01-04 | 潍柴重机股份有限公司 | Engine thermal management systems and its management method |
| CN109139328B (en) * | 2018-09-29 | 2020-12-25 | 潍柴重机股份有限公司 | Engine thermal energy management system and management method thereof |
| CN112349490A (en) * | 2020-11-03 | 2021-02-09 | 国网山东省电力公司寿光市供电公司 | Transformer with respiration monitoring control function |
| CN112349490B (en) * | 2020-11-03 | 2021-08-13 | 国网山东省电力公司寿光市供电公司 | Transformer with respiration monitoring control function |
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Application publication date: 20121031 |