CN1004061B - Heat absorbing frost eliminating method of bus by water heat, warm air naturally convection - Google Patents
Heat absorbing frost eliminating method of bus by water heat, warm air naturally convection Download PDFInfo
- Publication number
- CN1004061B CN1004061B CN86100905.3A CN86100905A CN1004061B CN 1004061 B CN1004061 B CN 1004061B CN 86100905 A CN86100905 A CN 86100905A CN 1004061 B CN1004061 B CN 1004061B
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- China
- Prior art keywords
- exch
- engine
- bus
- heat
- radiator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
- B60H1/04—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant
- B60H1/06—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant directly from main radiator
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The present invention relates to a heating and defrosting method by the residual heat of engine cooling water in the mode of natural convection ventilation. A heat exchanger is installed at the windward side of a bus; heat exchange is carried out in the mode of natural convection by wind pressure which is generated when the bus is driven. The residual heat of cooling water released by the heat exchanger all enters a carriage, and therefore, the dual purpose of cooling an engine and using the residual heat for heating and defrosting is achieved. The present invention has the advantages of no fuel consumption, no electrical energy consumption, little equipment utilization and obvious effect.
Description
The invention belongs to highway passenger vehicle utilizes the waste heat of engine cooling water to adopt the heating defroster device of natural convection ventilation mode.
Under cold district microthermal climate condition, for the passenger vehicle that does not have heat installation, the temperature in the compartment has cold sensation near the ambient-air temperature of compartment outside when the occupant rides, for a long time by bus even can be subjected to the harm of low temperature.The water vapour that the occupant breathes out can frosting on glass for vehicle window, influences occupant's sight line.For the passenger vehicle that heat installation is arranged, if adopt resistor wire or fuel heater unit as thermal source, inevitable consumed power or fuel.As if the heat in the waste gas that utilizes driving engine to discharge, not only air in a car compartment drying, dirt, and resistance of exhaust increase influence the performance of engine power." Mechanical Engineering Design handbook (combustion engine) points out that the heat that engine petrol and diesel motor cooling water expansion tank are taken away accounts for 20～30% and 15～27% of consume fuel gross calorific power respectively.US Patent Usup4010895 utilizes cooling water heat and fuel heater unit heating.The thermal exchange that use gas fan forces cooling water expansion tank in the H Exch is in the compartment, because drive fan will consume this car electric energy, fuel heater unit is also wanted fuel consumption.Use the method heating can utilize the waste heat of cooling water expansion tank, but want additive decrementation fuel.
The objective of the invention is, under the prerequisite that guarantees the needed cooling water temperature of engine thermal state, provide a kind of engine cooling water waste heat that utilizes to adopt the natural convection ventilation mode to carry out the device of heating defrosting.This device comprises one and the vertically arranged H Exch of vehicle traveling direction, the inlet tube and outlet tube and the driving engine of H Exch goes out, coolant inlet pipe joins, the inlet tube and outlet tube of H Exch and the inlet tube and outlet tube of radiator are parallel to driving engine samely goes out, on the coolant inlet pipe, and the valve of a control cooling water flow is installed respectively on the coolant inlet pipe of H Exch and radiator.Formed the cooling-water circuit of two parallel connections like this: first loop is the original cooling-water circuit of driving engine, the cooling-water circuit that second loop is made up of H Exch and inlet valve, engine body, water pump and connecting line.Promptly realize loop of the present invention.When the temperature of engine cooling water was lower than 76 ℃, for keeping the engine thermal state, under the control of Jie Wensai, cooling water expansion tank was made short circle in body; When water temperature was higher than 76 ℃, cooling water expansion tank carried out main cycle by heat-exchanger rig.When closing the radiator inlet valve, when opening the H Exch inlet valve, cooling water expansion tank circulates in second loop.During bus driving, the windward side produces positive blast, and cold air by compartment fwd ventilation inlet, enters H Exch under this blast effect.In cold air, the warm air after the heating into the car the thermal exchange of cooling water expansion tank for H Exch.Along with constantly entering of warm air, the temperature in the car rises gradually.Air in the compartment also will be discharged to outside the compartment by slit and the air outlet that car door, window etc. is located.Constantly into the car, car contains water vapour and carbon-dioxide air constantly is discharged to outside, compartment such natural convection air (circulation) process after the cold air process heat exchanger heats of outside, formation compartment.Through the circulation of short period, i.e. very short a period of time behind the bus driving, just can keep the preference temperature of comparatively fresh air in the compartment.Through actual measurement, when ambient-air temperature is very low (25 ℃), temperature also can remain on 8 ℃～10 ℃ in the compartment, and under this temperature, all the vehicle window frost-free reaches heating defrosting purpose, and the occupant breathes the air of comparatively fresh simultaneously.When the passenger vehicle short time did not travel, the radiating effect of H Exch also can satisfy the cooling requirement of driving engine; H Exch is with thermal radiation form distribute heat in car.For various types of passenger vehicles,, select the H Exch that is complementary for use according to engine parameter, carriage box volume capacity, climatic conditions and condition of service.According to the temperature Change in season, open or part is closed or closed the radiator inlet valve fully, close or partially open or open fully the inlet valve of H Exch.(when closing the radiator inlet valve fully) can lay down fan drive belt when not using radiator only to use H Exch, to alleviate engine load; The louver that utilization is arranged on the H Exch is regulated the cold blast rate that enters H Exch, to adjust engine cooling water temperature and Che Nei air themperature.The present invention's effect on worker's scheduled bus of the long-distance bus of the not frequent switch car door of cold district and short time switch car door is the most obvious.The present invention all can use on preposition or rear-engine bus.
Advantage of the present invention is under the situation that guarantees the engine thermal state, to have utilized the net quantity of heat of cooling water expansion tank through radiator release.The heat-obtaining device is the radiator of cooling system, is again the H Exch that is used for the heating defrosting, does not increase the consumption of fuel and electric energy.When not using the fan heat radiation, can also reduce engine load.Owing to be the ventilation type of free convection, air ratio internal-circulation type passenger vehicle is fresh in the car; Whole glass for vehicle window frost-frees.Use equipment is few, is convenient to use.
Accompanying drawing and explanation thereof:
Fig. 1 is principle of the invention figure.
Fig. 2 is that rear-mounted engine heating defrost system is arranged scheme drawing.
Fig. 3 is that F/F heating defrost system is arranged scheme drawing.
Wherein 1 is the former radiator of driving engine, and 2 is the radiator inlet valve, and 3 is H Exch, and 4 is the H Exch inlet valve, and 5 is water pump, and 6 is driving engine, and 7 is louver, and 8,9,10,11,12,13 is connecting line, and 14 is fan.
Most preferred embodiment of the present invention.This heating removes the tentative use of process on SR665H type rear-engine bus of railway carriage or compartment device.H Exch 3 of parameters selection according to this passenger vehicle is installed in the front of passenger vehicle with it.The water inlet of exchanger 3 is connected with coolant inlet pipe 8 with the coolant outlet pipe 9 of driving engine 6 with 11 with pipeline 10 respectively with water outlet.Difference mounted valve 4 and 2 on the coolant inlet pipe 10 and 12 of H Exch 3 and radiator 1.In the summer that does not need the heating defrosting, open valve 2, valve-off 4.Use radiator 1 and H Exch 3 simultaneously in early winter or season winter Mo, adjust the aperture of valve 2 and 4, the flow of cooling water expansion tank in control radiator 1 and the H Exch 3.Open valve 4 winter, valve-off 2, at this moment radiator 1 does not play thermolysis, can lay down fan drive belt.When cooling water temperature was lower than 76 ℃, under the control of driving engine 6 Jie Wensai, cooling water expansion tank was made short circle in body; When water temperature was higher than 76 ℃, cooling water expansion tank was under the effect of water pump 5, and through connecting line 9 and 10, valve 4, inflow heat exchanger 3 perhaps passes through connecting line 9 and 12, valve 2, inflow radiator 1, perhaps while inflow radiator 1 and H Exch 3.Bus driving, the heat that is discharged by H Exch all into the car.The driver is by regulating the aperture of louver 7, gas temperature degree in control and adjusting cooling water temperature and the car.Vehicle interior temperature can remain on 8～12 ℃, and glass for vehicle window is all frostless.
Claims (3)
1, a kind of hydro-thermal warm braw free convection carriage heating defroster device, this device comprises a H Exch with the vehicle traveling direction positioned vertical, the inlet tube and outlet tube and the driving engine of H Exch goes out, coolant inlet pipe joins, it is characterized in that, the inlet tube and outlet tube of H Exch and radiator on pipe samely going out of being parallel to driving engine, coolant inlet pipe, and the valve of a control cooling water flow is installed respectively on the coolant inlet pipe of H Exch and radiator.
2, the structure of carriage heating defroster device according to claim 1 is characterized in that, H Exch heat supply in the compartment during the heating defrosting, the complete again radiator as engine-cooling system.
3, the structure of carriage heating defroster device according to claim 1, its feature also is engine cooling system is changed into the natural convection air heat radiation with the fan forced heat radiation, be used for the water cooled rear-engine bus, also can be used for water cooled F/F passenger vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN86100905.3A CN1004061B (en) | 1986-02-06 | 1986-02-06 | Heat absorbing frost eliminating method of bus by water heat, warm air naturally convection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN86100905.3A CN1004061B (en) | 1986-02-06 | 1986-02-06 | Heat absorbing frost eliminating method of bus by water heat, warm air naturally convection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN86100905A CN86100905A (en) | 1987-06-24 |
| CN1004061B true CN1004061B (en) | 1989-05-03 |
Family
ID=4801244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN86100905.3A Expired CN1004061B (en) | 1986-02-06 | 1986-02-06 | Heat absorbing frost eliminating method of bus by water heat, warm air naturally convection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1004061B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705627B (en) * | 2012-06-07 | 2014-12-03 | 长城汽车股份有限公司 | Vibration reduction device of engine cooling water pipe and vehicle |
| CN102968140A (en) * | 2012-11-28 | 2013-03-13 | 芜湖博耐尔汽车电气***有限公司 | Water temperature control device for automobile air-conditioning heater and control method thereof |
| CN103832242B (en) * | 2013-12-19 | 2016-04-13 | 柳州市京阳节能科技研发有限公司 | High-efficient energy-saving environment friendly automotive air conditioning device |
| CN103912941A (en) * | 2013-12-19 | 2014-07-09 | 柳州市京阳节能科技研发有限公司 | Efficient energy-saving environment-friendly vehicle air cooler |
| CN109209600A (en) * | 2018-09-28 | 2019-01-15 | 潍柴动力股份有限公司 | Distributed cooling system and distributed cooling means |
-
1986
- 1986-02-06 CN CN86100905.3A patent/CN1004061B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN86100905A (en) | 1987-06-24 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |