CN205292214U

CN205292214U - Use multipurposely car warm braw system of engine cooling liquid and tail gas waste heat

Info

Publication number: CN205292214U
Application number: CN201620052881.6U
Authority: CN
Inventors: 张建平; 胡胜; 龚曙光; 周国强; 夏小霞
Original assignee: Xiangtan University
Current assignee: Xiangtan University
Priority date: 2016-01-20
Filing date: 2016-01-20
Publication date: 2016-06-08
Anticipated expiration: 2026-01-20

Abstract

The utility model relates to an use multipurposely car warm braw system of engine cooling liquid and tail gas waste heat mainly comprises engine body, tail gas heat transfer device, engine cooling device, engine exhaust discharging equipment, heater, warm braw fan, hot water governing valve, temperature saver, radiator and radiator fan, novel warm braw system hot water source circulating water two parts including engine cooling liquid and automobile exhaust heat transfer device in, the circulating water among the tail gas heat transfer device is the same with the coolant liquid in the engine cooling device, during just the priority is sent into the heater and radiator of the original warm braw system of car, need suitably increase the heat transfer area of heat exchanger, need not to install additional alone heater and radiator again, make full use of original warm braw system. The utility model discloses used multipurposely two kinds of heats source, it is little not enough both to have compensatied the single confession warm volume of engine cooling liquid in winter, has reduced the surplus heat wave expense of engine exhaust again, has realized energy -saving and emission -reduction target, system simple and practical.

Description

A kind of automobile warm-air system that fully utilizes engine coolant and using waste heat from tail gas

Technical field

The utility model relates to a kind of automobile warm-air system, specifically a kind ofly fully utilize the using waste heat from tail gas of automobile and the cooling fluid of engine is carried out the system for heating automobile as thermal source, its object is mainly in order to solve residual heat of tail gas of automobile waste problem, simultaneously also for saving resource, energy consumption while reducing winter automobile warm-air system heating, realizes the target of energy-saving and emission-reduction.

Background technology

Along with developing rapidly of China's economy, the use of automobile is more and more extensive, and wherein the overwhelming majority is regular fuel diesel locomotive. With existing internal combustion engine index evaluation, in gasoline engine, approximately there is 36% heat not to be utilized, be drained in atmosphere by tail gas; In diesel engine, have the heat of 30% left and right not to be utilized, this part exhaust temperature, about 900K～1100K, is drained in atmosphere by gas emission device, has both caused energy waste, returns environment simultaneously and brings very large pollution. Therefore the utilization of residual heat of tail gas of automobile is more and more subject to people's attention. In heating automobile mode, utilize the heat of engine exhaust system directly to carry out the steam heating type warm air system of heating, owing to containing corrosive gas and toxic gas and particulate in waste gas, once leaking just, tail gas can produce great threat to occupant's personal safety, so there be limited evidence currently of adopts. But and carrying out the water heating type warm-air system of heating, the heat that utilizes engine cooling water is faced with the embarrassment that heating load is little. Therefore, heating system of automobile is generally the heat that had both utilized engine coolant at present, independent burning preheater is also housed simultaneously, but due to special burner being housed, must have increased energy consumption.

Utility model content

Heating automobile mainly contains four kinds at present: (1) utilizes the heat of engine coolant as thermal source, is called water heating type warm-air system; (2) utilize the heat of engine exhaust system as thermal source, be called steam heating type warm air system; (3) special combustion mechanism is housed, is called independent burning formula warm air system; (4) both utilize the heat of engine coolant, the comprehensive heater of burning preheater had been housed again, be called comprehensive pre-heated warm air system. But steam heating type warm air system is owing to containing corrosive gas and toxic gas and particulate in waste gas, if cause tail gas leakage meeting to produce great threat to occupant's personal safety, there be limited evidence currently of adopts. For fear of the waste of automobile engine tail gas waste-heat, ensure occupant's safety, solve the large problem of automobile heat supply in winter energy resource consumption simultaneously, realize the target of energy-saving and emission-reduction, the utility model provides a kind of automobile engine tail gas waste-heat has been incorporated in the water heating type warm-air system that engine cool liquid device forms, for warm braw is provided in car.

The utility model solves the technical scheme that its technical problem adopts: utilize vehicle exhaust heat-exchanger rig using waste heat from tail gas to be reclaimed and is attached to automobile water heating type heating warm air system.

Leak the problem that may cause personal security in order to solve tail gas in steam heating type warm air system, in original water heating type warm-air system-based, the utility model is installed a set of tail gas heat-exchanger rig at automobile engine to exhaust end, this device is a set of water cooled system, adopt double pipe heat exchanger, carry out heat exchange by intrasystem recirculated water and vehicle exhaust, thereby reach the object that reclaims vehicle exhaust part heat. Then the hot water after heating is incorporated in the heater of original water heating type warm-air system, circulating hot water dispels the heat at heater together with engine coolant, the air of circumference. For heater is set no longer separately, the recirculated water in tail gas waste heat recovering system also adopts the cooling fluid identical with the cooling fluid concentration of starting. From heater, cooling fluid out carries water pump by engine and gets back to and in the radiator of engine, carry out further radiating and cooling, then a part is got back to the tail gas heat-exchanger rig of engine exhaust end, a part is got back in the chilled water unit of engine, so far completes once circulation.

Good effect of the present utility model is: the threat that (1) has avoided steam heating type warm air system may cause occupant's safety due to the seal of pipeline in the time of heating; (2) made up the little problem of the single heating-amount of engine coolant; (3) effectively utilize the part of waste heat in motor exhaust, improved efficiency of energy utilization; (4) recirculated water in tail gas heat-exchanger rig is identical with engine coolant, and without installing separately heater additional, system is simple and practical; (5) backwater in motor exhaust heat-exchanger rig is fed in the radiator of the original warm air system of automobile, and without installing separately radiator additional, system is simple and practical.

Brief description of the drawings

Below in conjunction with drawings and embodiments, the utility model is further illustrated.

Accompanying drawing 1 is the automobile warm-air system schematic of comprehensive utilization engine coolant of the present utility model and using waste heat from tail gas.

Detailed description of the invention

As shown in Figure 1, the automobile water heating type heating warm air system of comprehensive utilization engine coolant of the present utility model and using waste heat from tail gas is mainly made up of heater 1, warm braw blower fan 2, engine-cooling system hot water control valve 3, engine exhaust emission device 4, tail gas heat-exchange system hot water control valve 5, tail gas heat-exchanger rig 6, engine body 7, tail gas heat-exchange system thermostat 8, radiator 9, radiator fan 10, engine-cooling system thermostat 11 and engine cooling apparatus 12.

Wherein, the effect of warm braw blower fan 2 is that cold air is blowed to heater 1, is admitted in automobile bodies after cold air heating; Regulate motor of engine speed, can regulate the air output in compartment.

The warm air system method of operation of the present utility model is to carry water pump by engine the hot water in engine cooling apparatus 12 and tail gas heat-exchanger rig 6 to be drawn in the heater 1 of warm air system, its flow can be controlled by engine-cooling system hot water control valve 3 and tail gas heat-exchange system hot water control valve 5 respectively, cold air carries out heat exchange through heater 1 after forming forced convertion campaign by warm braw blower fan, and the hot-air after heating is fed to automotive interior. Be sent to and in radiator 9, carry out further heat exchange cooling and backwater in heater 1 carries water pump by engine, cold water after cooling is sent to respectively in tail gas heat-exchanger rig 6 and engine cooling apparatus 12 and is carried out heat exchange by tail gas heat-exchange system thermostat 8 and engine-cooling system thermostat 11, so far completes once circulation.

Claims

1. an automobile warm-air system that fully utilizes engine coolant and using waste heat from tail gas, is characterized in that: be mainly made up of engine body, tail gas heat-exchanger rig, engine cooling apparatus, engine exhaust emission device, heater, warm braw blower fan, tail gas heat-exchange system hot water control valve, engine-cooling system hot water control valve, tail gas heat-exchange system thermostat, engine-cooling system thermostat, radiator and radiator fan; The effect of warm braw blower fan is that cold air is blowed to heater, is admitted in compartment after cold air heating, regulates motor of engine speed, can regulate the air output in compartment.

2. a kind of automobile warm-air system that fully utilizes engine coolant and using waste heat from tail gas according to claim 1, it is characterized in that: warm air system hot water source comprises two parts, a part is engine coolant, and a part is the recirculated water in vehicle exhaust heat-exchanger rig.

3. a kind of automobile warm-air system that fully utilizes engine coolant and using waste heat from tail gas according to claim 1, is characterized in that: the recirculated water in tail gas heat-exchanger rig is identical with the cooling fluid in engine cooling apparatus.

4. a kind of automobile warm-air system that fully utilizes engine coolant and using waste heat from tail gas according to claim 1, it is characterized in that: the recirculated water in motor exhaust heat-exchanger rig is fed in the heater of original warm air system, without installing separately heater additional.

5. a kind of automobile warm-air system that fully utilizes engine coolant and using waste heat from tail gas according to claim 1, is characterized in that: the backwater in motor exhaust heat-exchanger rig is fed in the radiator of original warm air system, without installing separately radiator additional.