CN2058385U - Air conditioner using waste heat for car - Google Patents
Air conditioner using waste heat for car Download PDFInfo
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- CN2058385U CN2058385U CN 89221214 CN89221214U CN2058385U CN 2058385 U CN2058385 U CN 2058385U CN 89221214 CN89221214 CN 89221214 CN 89221214 U CN89221214 U CN 89221214U CN 2058385 U CN2058385 U CN 2058385U
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- steam
- waste heat
- evaporator
- pipe
- car
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Abstract
The utility model relates to an air conditioner using waste heat for car mainly used for a motor car, a small passenger car and a truck cab, which uses the waste heat exhausted of the engine as energy source; the air conditioner using waste heat for car is composed of a steam generator, a steam water separator, a steam ejector, a condenser, an evaporator, and a throttle device. The air conditioner using waste heat for car has the advantages of simple structure, having low cost; the air conditioner using waste heat for car uses the waste heat not to affect the power performance and the economic performance of the engine.
Description
The utility model belongs to the automobile-used steam-sprayed interior environment system that utilizes engine exhaust heat to do the energy.
At present, Vehicular air conditioner generally all adopts a cover to utilize vehicular engine compressor driven formula refrigerator, for refrigeration in summer usefulness, also have a cover to utilize the heater unit of engine cooling water by radiator, use for winter heating, such apparatus structure complexity, the maintaining difficulty, the cost height, the compression refrigerator needs the effective power of consumption of engine, increased the weight of the burden of driving engine, wasted energy.
The purpose of this utility model is to utilize the exhaust heat of driving engine to do the energy, adopts a kind of steam-sprayed interior environment system to satisfy the needs of automobile refrigeration and heating, and it need not the effective power of consumption of engine.
Above-mentioned purpose of the present utility model is achieved through the following technical solutions: automobile-used waste heat interior environment system, mainly be by steam generator, steam separator, vapour compression unit, condenser, evaporator, throttling device, and triple valve, shutoff valve, pipeline is formed, its special character is that vapour compression unit adopts steam injector (8) to substitute, the exhaust entrance end (20) of steam generator (5) joins by exhaust inlet pipe (3) and the triple valve (2) that is connected on the exhaust pipe of engine (1), its drain pipe overflow pipe end (24) joins with the exhaust pipe of engine (1 ＇), another path of triple valve (2) joins by the by passage (4) and the exhaust pipe of engine (1 ＇), the steam (vapor) outlet end (23) of steam generator (5) by pipeline successively with steam separator (6), triple valve (7), steam injector (8), shutoff valve (12), condenser (13), shutoff valve (15), circulation pump (19), with and on water inlet end (27) join, constitute circulation loop, the exit end of evaporator (17) joins with steam injector (8) and triple valve (7) respectively, and its arrival end communicates with connecting line between circulation pump (19) and the shutoff valve (15) by throttling device (16).
More than the tube-sheet type gas-vapour type heat exchanger that can form by fin tube and tube sheet of said steam generator (5), netted steam separator (6) is arranged in the bobbin carriage thereon, and the two ends of fin tube (25) are fixed and are loaded in the bobbin carriage by upper perforated plate (21), lower perforated plate (26).
More than said steam injector (8) can be by convergent-divergent shape nozzle (9), blending box (10) and convergent-divergent shape diffuser pipe (11) are formed, the adapter (28) that communicates with evaporator (17) is equipped with in the side of blending box (10).
Above condenser of saying (13) and evaporator (17) can and be welded on the tube sheet (29) by metal tube (30) expanded joint, and its whole rectangular fin (31) is enclosed within outside the metal tube (30), is covered with casing (32).
The refrigeration of interior environment system described in the utility model is that exhaust heat with consumption of engine is a cost, it with water as refrigerant.When automobile travels under typical condition, its exhaust temperature is at 300 ℃～400 ℃, its exhaust gas heat loss accounts for 30%～40% of heat output of fuel, engine exhaust from engine exhaust pipeline (1) passes through triple valve (2), and part is returned freeing pipe by by passage (4).The engine exhaust amount that triple valve (2) scalable enters steam generator (5) changes the heat exchange amount of steam generator (5), thereby reaches the purpose of regulating vehicle interior temperature.In steam generator (5), heat of exhaust is passed to the working-medium water from water pump (19), makes it to change into the working steam with certain pressure.Through steam separator (6) with the moisture carried under one's arms in the steam from coming out to send back to steam generator (5), its working steam enters nozzle (9) in the steam injector (8) by triple valve (7), and eductor (8) is one of major part of steam-sprayed chiller.It has substituted the compressor of compression chiller with the structure of simply not having movement parts.It is made up of nozzle (9), blending box (10) and diffuser pipe (11).Working steam carries out adiabatic expansion through convergent-divergent shape nozzle (9), exit at nozzle (9) reaches very high flow rate, so pressure is very low in the exit of nozzle (9) and near the blending box (10) thereof, the steam that evaporator (17) lining has been evaporated heat absorption is drawn in the blending box (10).So the working steam band of nozzle (9) outlet the refrigeration working fluid steam of from evaporator drier (17) to enter in the diffuser pipe (11) jointly, reduce flow velocity, rising pressure, enters condenser (13) by a shutoff valve (12) then and carries out condensation.The saturation water that comes out from condenser (13) is divided into two-way after through shutoff valve (15), a part enters refrigerating circuit, promptly enter the very low water vapour of flow regulating valve (16) decompression formation mass dryness fraction and enter the evaporator (17) that is placed in the automobile car, the heat absorption in the car is reached the purpose of refrigeration in the car.Water vapour heat absorption vaporization in evaporator (17) becomes dry saturated steam, injected device (8) suction blending box (10), some enters the saturation water that comes out from shutoff valve (15) and delivers to the heat of drawing from engine exhaust the steam generator (5) after water pump (19) boosts and become working steam.Finished the refrigerant cycles of a closure like this.
In the time of in the winter time, need heating in the automobile, can utilize this covering device pyrogenicity.Its working process is: shutoff valve (12) and (15) are closed, regulating triple valve (7) makes high-temperature water vapor from steam generator (5) not enter eductor (8) and condenser (13) shown in dotted line in the accompanying drawing and enters evaporator (17), the reverse work of evaporator (17) this moment becomes a condensing radiator, water vapor condensation is become water, simultaneously steam heat is passed to the air of sending in the car and make it to become hot blast, reach the purpose of heating in the car.The working cycle of this process is also finished by water pump (19).
The technique scheme that the utility model provides has the following advantages: actv. utilizes the exhaust heat of driving engine, does not need the effective power of consumption of engine.It is simple in structure, and is cheap, but utilizes both refrigeration in summer of a covering device, but winter heating again has the function of dual-use.This device does not influence the dynamic property and the economy of driving engine, is fit to penetration and promotion and uses.
Description of drawings:
Fig. 1 is the scheme drawing of automobile-used waste heat interior environment system;
Fig. 2 is the structural representation of steam generator (5);
Fig. 3 is the structural representation of steam injector (8);
Fig. 4 is the structural representation of condenser (13) and evaporator (17).
Other parts are among the figure: engine exhaust pipeline (1), (1 ＇), triple valve (2), (7), steam generator exhaust entrance pipeline (3).By passage (4), steam generator (5), steam separator (6), steam injector (8), nozzle (9), blending box (10), diffuser pipe (11), shutoff valve (12), (15), condenser (13), blower fan (14), (18), throttling device (16), evaporator (17), circulation pump (19), exhaust entrance end (20), upper perforated plate (21), carbonated drink separate mesh (22), steam (vapor) outlet end (23), drain pipe overflow pipe end (24), fin tube (25), lower perforated plate (26), water inlet end (27), take over (28) tube sheet (29), heat-transfer pipe (30), whole rectangle nest plate (31), casing (32).
Specify the utility model below by an embodiment.
This interior environment system is applied to do on the minibus of power with the 492Q spark ignition engine, adopts water as refrigeration working fluid and pyrogenicity working medium.Water is nontoxic, tasteless, pollution-free, and the source is wide, and safety is cheap.Because the water vapour evaporating pressure is low, and is improper to compression refrigeration, but more suitable to steam jet refrigeration.
Steam generator (5) is to utilize engine exhaust heat to produce the heat exchanger that water vapour drives eductor (8) work.Its main technical details is: the exhaust entrance temperature is 400 ℃, the drain pipe overflow pipe temperature is 199 ℃, the water inlet temperature is that 45 ℃ of steam outlet temperature are 158 ℃, and extraction flow is 165 kilograms/hour, and steam flow is 13.7 kilograms/hour.Vapor pressure is 6 crust, and heat interchanging area is 1.447 meters
2, the heat exchange amount is 9.8 kilowatts.The flow pattern of heat exchanger is a cross flow type, and the structure of heat exchanger is a fin-and-tube type.The brass pipe that steam generator (5) adopts 10 * 1 * 250 millimeters of 30 Φ is by rounded projections arranged mode expanded joint and be welded on the tube sheet, the transverse pipe spacing is 20 millimeters, vertically tube pitch also is 20 millimeters, it is the circular copper fin of 1 millimeter of 20 millimeters thick that the pipe guest performer has diameter, and its fin pitch is 3.5 millimeters.Produce water vapour in the pipe, walk the exhaust of driving engine outside the pipe.The length of steam generator (5) is respectively 330,180,360 millimeters.Steam separator (6) is a metal mesh type, is installed in the upper tube box of steam generator (5).
Steam injector (8) is the critical component of steam jet chiller.The steam pressure of nozzle (9) entrance is 6 crust, and temperature is 158 ℃, and specific enthalpy is 2759 kilojoule/kilograms.Diffuser pipe (11) delivery pressure is 0.0977 crust, and temperature is 89 ℃, and specific enthalpy is 2666.5 kilojoule/kilograms.Nozzle (9) is a converging diverging nozzle, and eye diameter is 8 millimeters, and throat diameter is 2 millimeters, and outlet diameter is 14 millimeters, and converging transition length is 15 millimeters, and divergent segment length is 40 millimeters.Diffuser pipe (11) also is a converging diverging nozzle, eye diameter is 50 millimeters, throat diameter is 24 millimeters, the preceding segment length of diffuser pipe (11) is 248 millimeters, back segment length is 182 millimeters, nozzle (9), blending box (10) and diffuser pipe (11) are all with brass or corrosion-resistant steel manufacturing.
The effect of condenser (13) is to be saturation water with water vapor condensation, and it is installed in the radiator front, utilizes the natural wind in former engine water tank fan and the running car to cool off.Its main technical details is: temperature of inlet air is 30 ℃.Air exit temp is 44 ℃, the steam entry temperature is 30 ℃, and air exit temp is 44 ℃, and the steam entry temperature is 89 ℃, the condensation-water drain temperature is 45 ℃, and the working-medium water mass flow rate is 18.6 kilograms/hour.Heat interchanging area is 6.07 meters
2, the heat exchange amount is 13 kilowatts.Condenser (13) adopts the tube-sheet type structure, the brass pipe expanded joint that 36 Φ 10 * 1 * 430 millimeters is welded on the tube sheet, the transverse pipe spacing is 30 millimeters, vertically tube pitch is 15 millimeters, be listed as by fork row mode, the whole rectangular fin of 375 * 43 millimeters of suits outside brass pipe, fin thickness is 0.2 millimeter, pitch is 2 millimeters.Working-medium water is mobile in pipe, outside the air flowing pipe by the fans drive of engine water tank.The overall dimension length of condenser is respectively 380,45,470 millimeters.
Evaporator (17) is installed in the car, and it draws the requirement that the interior heat of car reaches refrigeration in the car.The main technical details of evaporator (17) is: inlet air temp is 25 ℃, air exit temp is 15 ℃, evaporating temperature is 10 ℃, evaporating pressure 0.01227 crust, steam flow is 4.9 kilograms/hour, charge air is 1100 kilograms/hour, and heat interchanging area is 2.284 meters
2, refrigerating capacity is 3.2 kilowatts.The flow problem of evaporator (17) is a cross flow type, structural shape is the cover finned pipe type, it adopts the brass pipe fork of 10 * 1 * 180 millimeters of 80 Φ to be arranged on the tube sheet, and the transverse pipe spacing is 20 millimeters, and vertically tube pitch is 20 millimeters.Manage whole brass (or aluminium) fin of the thick 0.2 millimeter rectangle of outer suit.It is of a size of 88 * 336 millimeters, and the fin pitch is 2 millimeters, and working steam flows in pipe, outside air flowing pipe in the car of a blower fan (18) driving.The overall dimensions length of evaporator (17) is respectively 360 * 98 * 275 millimeters.The pressure head of blower fan (18) is 32 millimeter water column, and flow is 990 meters
3/ hour, it is driven by 110 watts of micromotors of one 12 volts.
Flow regulating valve (16) is selected the capillary type throttling device for use, and capillary inner diameter is 1 millimeter, and 3 meters of length overalls are installed on the export pipeline of evaporator.
Solution pump (19) is a centrifugal pump, and pressure head is 6 crust, and flow is 13.7 kilograms/hour, selects for use 12 volts of 240 watts of micromotor to drive.
Need in the winter time in the car during heating, utilize steam that steam generator (5) produces by former evaporator (17), at this moment it becomes a condensing radiator, and warm braw is provided in car.When ambient temperature is-20 ℃, when vehicle interior temperature was kept 20 ℃, the heating load of this device was 4.67 watts, and wind-warm syndrome is 50 ℃.
Claims (4)
1, automobile-used waste heat interior environment system mainly is by steam generator, steam separator, condenser, and evaporator, throttling device and triple valve, shutoff valve, pipeline are formed.It is characterized in that vapour compression unit adopts steam injector (8), the exhaust entrance end (20) of steam generator (5) joins by exhaust entrance pipeline (3) and the triple valve (2) that is connected on the engine exhaust (1); Its drain pipe overflow pipe end (24) joins with the exhaust pipe of engine (1 ＇), another path of triple valve (2) joins by the by passage (4) and the exhaust pipe of engine (1 ＇), the steam (vapor) outlet end (23) of steam generator (5) by pipeline successively with steam separator (6), triple valve (7), steam injector (8), shutoff valve (12), condenser (13), shutoff valve (15), circulation pump (19), with and on water inlet end (27) join, constitute circulation loop, the exit end of evaporator (17) joins with steam injector (8) and triple valve (7) respectively, and its arrival end communicates with connecting line between circulation pump (19) and the shutoff valve (15) by throttling device (16).
2, a kind of automobile-used waste heat interior environment system according to claim 1, it is characterized in that tube-sheet type gas-vapour type heat exchanger that described steam generator (5) is made up of fin tube and tube sheet, netted steam separator (6) is housed in the bobbin carriage thereon, the two ends of fin tube (25) are by upper perforated plate (21), and lower perforated plate (26) is fixed and is loaded in the bobbin carriage.
3, a kind of automobile-used waste heat interior environment system according to claim 1, it is characterized in that described steam injector (8) is made up of convergent-divergent shape nozzle (9), blending box (10) and convergent-divergent shape diffuser pipe (11), convergent-divergent shape nozzle (9) and convergent-divergent shape diffuser pipe (11) are coaxial respectively to be contained on the blending box (10), and the adapter (28) that communicates with evaporator (17) is equipped with in the side of blending box (10).
4, a kind of automobile-used waste heat interior environment system according to claim 1, it is characterized in that described condenser (13) and evaporator (17) are by metal tube (30) expanded joint and are welded on the tube sheet (29), its whole rectangular fin (31) is sleeved on outside the metal tube (30), and the outside is covered with casing (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89221214 CN2058385U (en) | 1989-12-15 | 1989-12-15 | Air conditioner using waste heat for car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89221214 CN2058385U (en) | 1989-12-15 | 1989-12-15 | Air conditioner using waste heat for car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2058385U true CN2058385U (en) | 1990-06-20 |
Family
ID=4875737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89221214 Withdrawn CN2058385U (en) | 1989-12-15 | 1989-12-15 | Air conditioner using waste heat for car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2058385U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100413716C (en) * | 2004-02-27 | 2008-08-27 | 株式会社电装 | Vehicle air conditioning system |
| CN102410109A (en) * | 2010-09-20 | 2012-04-11 | 广西玉柴机器股份有限公司 | Method and device for recovering waste heat energy of engine |
-
1989
- 1989-12-15 CN CN 89221214 patent/CN2058385U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100413716C (en) * | 2004-02-27 | 2008-08-27 | 株式会社电装 | Vehicle air conditioning system |
| CN102410109A (en) * | 2010-09-20 | 2012-04-11 | 广西玉柴机器股份有限公司 | Method and device for recovering waste heat energy of engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |