KR920009123B1 - Arrangement of cooling device for passenger of vehicle - Google Patents

Abstract

The cooling device is an absorption type for using waste heat of an automobile engine. The cooling device comprises a regenertor (12), an evaporator (18) and a wet steam separator (13) is filled with an impregnating material (D). The impregnating material (D) is made of cellulose or sponge.

Description

Absorption cooling device using engine waste heat of automobile

1 is a cooling water circulation system for cooling the engine and the cooling device of the present invention.

2 is a comparison between the operation and non-operation of the cooling device of the present invention,

a is a circulatory system diagram in operation,

b is a circulatory system diagram during non-operation.

3 is a cycle flowchart of an absorption chiller constituted by a cooling device according to an embodiment of the present invention.

4 is a circuit diagram of an embodiment of the present invention.

5 is an electrical system circuit diagram according to another embodiment of the present invention.

6: air intake capacity adjusting device for engine cooling.

* Explanation of symbols for the main parts of the drawings

1: radiator 2: cooler

3: engine 4: 4 way valve,

5 damper control motor 6 damper

7: temperature controller 8: Hen motor

9: solenoid 11: absorber

12: regenerator 13: vapor separator

14 Distiller 15 Condenser Restrictor

16: Evaporator Restrictor

17 absorber piping 18 evaporator

19: solution pump

20: Solution Restrictor

21: cooling circulation pump 22: generator

The present invention relates to an absorption type cooling device using engine waste heat of an automobile, and is a cooling device for cooling an engine in a running state, using superheated circulating water before sending it to a radiator connected to the engine and cooling it, The present invention relates to an absorption type cooling device configured to perform inflow cooling with an absorption type refrigerator, and in particular, to prevent the refrigerant and the absorbent in the evaporator from flowing back. The higher the speed of the vehicle, the higher the engine temperature and the higher the temperature. Also, the refrigeration compressor attached to the conventional air conditioner may be under load and carry the risk of overheating the engine. In addition, in the conventional cooling device, as the speed increases, the capacity of the cooling device tends to be insufficient due to an increase in the amount of heat transferred to the interior of the vehicle. In addition, since the conventional compressor for a refrigeration of the vehicle is operated by the automobile engine, there is a disadvantage in that the force of the driving vehicle is weakened by dividing the engine power.

As described above, the present invention to compensate for the shortcomings of the conventional vehicle cooling apparatus using a refrigeration compressor has been devised an absorption type cooling apparatus using the engine waste heat of the automobile. As such, the absorption cooling device using the waste heat of the automobile may decrease the efficiency of the automobile engine as the engine is overheated. do. In addition, since the cooling device of the present invention uses waste heat of the vehicle, it does not put any load on the engine.

The present applicant has completed the design of the absorption type cooling device using the waste heat of the automobile and has already completed the application with Utility Model Registration Application No. 89-10139 (the cooling apparatus using the waste heat of the engine of the automobile). However, the elected draft has a problem that the refrigerant and the absorbent in the evaporator flows backward when the vehicle is driven up or down the slope of the vehicle, and when there is a severe vibration, thereby reducing the freezing effect. The present applicant has completed the present invention as a result of continuing research to solve this problem. Accordingly, an object of the present invention is to provide a cooling device using the waste heat of the automobile engine that has no problem in the refrigeration effect even when the vehicle is going up or down the slope, or the vibration is severe or sudden stop.

In the present invention, as a means to achieve the above object, ammonia is used as the refrigerant and water is used as the absorbent, and an impregnant which does not cause a chemical reaction with the refrigerant and the absorbent is used. In the present invention, ammonia and water (ammonia water), which are refrigerants and absorbents, are absorbed well, and impregnant D, which does not cause chemical reaction between refrigerants and absorbents, includes regenerator 12 and evaporator (shown in FIGS. 1 and 3). 18) and the vapor separator 13, the impregnant preferably uses a sponge-like material made of a material that does not flow in the state in which the refrigerant and the absorbent are absorbed and does not affect the evaporation of the refrigerant and the absorbent. Such impregnating agents D include polyethylene, polypropylene, polyacrylic resin, acetate resin, atactic polypropylene resin, ABS resin, AS resin, EVA resin, chlorinated polyether resin, foamed in the form of cotton wool, degreasing cellulose, pulp, sponge, Synthetic resins such as fluorine resin, vinylene resin, PVC resin, chlorinated polyethylene resin, xylene resin, silicone resin, coumarone inrene resin, furan resin, polyamide resin, polyurethane resin, vinylon resin, melanin resin, and natural and synthetic resins Rubber sponge etc. can be used.

An impregnating agent D such as sponges is filled in the regenerator 12, the evaporator 18, the vapor separator 13, and the like, and the water saturated with ammonia is impregnated therein. This impregnation prevents flow, so that the vehicle is free from the risk of liquid flowing back when driving in an inclined place, during vibration and sudden stop.

In the present invention, the entire apparatus must not use copper or an alloy containing copper. In this case, copper causes a chemical reaction in the form of ammonia, and also dissolves cellulose into the impregnant, so that the impregnant cannot function. The apparatus, piping and valves are preferably made of steel, stainless steel or coated copper.

Next will be described based on the embodiment shown in the accompanying drawings.

However, dimensions, quantities, materials, relative arrangements, etc. of the components included in the embodiments of the present invention are not intended to be limiting unless otherwise specified, and are merely illustrative examples. 1 is a view showing the state at the time of the operation of the cooling device of the present invention, the circulating water taken out of the engine 3 is converted into a flow path by the four-way valve 4 and flows into the regenerator 12 in the absorption chiller. The absorption chiller supplies the heat source to perform the freezing, and the circulating water that has been cooled firstly flows back into the engine cooling radiator (1), cools secondly, and forms a cooling water circulation system in which the engine flows into the water jacket again. The cooling efficiency of the engine 3 can be improved.

The specific circulation system will be described according to FIG.

Due to the continuous absorption in the absorber 11, the aqueous solution (water + ammonia) turns into a strong solution and the used solution is pumped to the regenerator by the solution pump.

The steel solution is converted into a chemical solution by evaporation of the refrigerant into the heat source of the engine 3 supplied to the regenerator 12. At this time, the pressure generated inside the regenerator 12 causes the refrigerant to be converted into a liquid-vapor separator-rectifier-condenser-. It is pumped by an evaporator to form a system so that the chemical solution enters the absorber 11 on the low pressure side. The steam refrigerant containing water introduced from the vapor separator 13 in which water is separated and dropped together with the refrigerant is separated from the water using the rectifier 14. As the steel solution flows in the pipe and the steam coolant flows outside the pipe, the temperature of the steel solution inside the pipe increases while the temperature of the steam refrigerant decreases. Accordingly, the moisture contained in the steam refrigerant condenses on the outer surface of the pipe and falls, so that only pure steam refrigerant is transferred to the condenser. In addition, the cooling of the vapor refrigerant accompanying at this time increases the efficiency by accelerating the vapor refrigerant liquid.

Here, the condensed water dropped into the regenerator 12 is indirectly heated and recovered to the liquid refrigerant separator 13 by a siphon action. The high-temperature, high-pressure steam refrigerant leaving the distiller enters the condenser located at the top of the outside of the condenser and becomes a liquid refrigerant by the temperature drop by the outside air by the operation of the condenser cooling fan. As the pressure intensifies, it slows down.

The low-temperature liquid refrigerant passing through the condenser restorer (15) flows through the outer tube of the heat exchanger tube. At this time, the low temperature flowing through the inner tube is mutually exchanged between the steam refrigerants. ), The pressure is reinforced and the heat is absorbed from the cooling return sprayed from the cold water spray tube to cool the evaporative refrigerant to 5-7C. The vaporized vapor refrigerant enters the inner tube of the heat exchanger tube to cool the liquid refrigerant flowing through the outer tube, and then enters the absorber 11. The vapor refrigerant generated in the evaporator 18 enters into the absorber 11 containing the chemical solution and the chemical solution is absorbed and liquefied to form the refrigerant at low pressure. The high temperature chemical solution coming from the regenerator flows into the spray plate and cools while being dispersed and dropped on the surface of the heat exchange pipe through which the low temperature steel solution flows, thereby accelerating the absorption of the steam refrigerant and increasing the absorption rate to increase efficiency. The refrigerant accumulated in the bottom and the incomplete aqueous solution enter the absorber pipe 17 through several supply pipes.

The incomplete aqueous solution is cooled by outside air by the operation of the condenser cooling fan set on the condenser to increase the absorption rate of the aqueous solution to make the steel solution absorbing the refrigerant 100%. The forced liquid generated in the absorber pipe 17 enters the tank of the solution pump, and is pumped by the pump through the heat exchanger tubes in the rectifier 14 and the absorber 11 to the high pressure side regenerator.

The steel solution discharged from the solution pump 19 passes through the heat exchanger tube in the rectifier 14 at a relatively low temperature and undergoes a first heat exchange with the high temperature steam refrigerant to increase the temperature, and then passes the heat exchanger in the absorber 11 again. The secondary heat exchange with the medicinal solution of the temperature rises and is supplied to the top of the regenerator 12. The increase in temperature of the steel solution serves to increase the efficiency of the device due to the preheating effect, and the steel solution introduced into the regenerator 12 is cooled by sequentially repeating the above-described operations.

2 is a diagram illustrating a state in which the cooling device is inactive, and a cooling water flow path is formed so that the circulating water that has taken heat from the engine 3 flows into the radiator 1 by the four-way valve 4 and is cooled. The engine is cooled while repeating circulation to the water jacket of the engine 3 again.

Of course, the impregnant D is filled in the regenerator 12, the evaporator 18 and the vapor separator 13 in the above embodiment. In addition, by the configuration of another embodiment according to the present invention, it is also possible to use the exhaust heat as an auxiliary heat source for applying the absorption type cooling device.

4 and 5 show that the temperature controller 7 is turned on when the temperature of the vehicle is increased by the temperature controller 7 attached to the interior of the vehicle when air conditioner maintains proper temperature of the vehicle. When the flow path of the cold steel circulation system is converted to the second degree toward cooling and the temperature inside the vehicle is lowered to an appropriate temperature, the four-way valve 4 is converted to the second degree by the temperature controller 7 and the engine cooling system is normally used. It is a method to keep the temperature inside the vehicle constant while repeating the conversion is made.

6 is a flow rate of cooling air for cooling the circulation water of the cooling system for cooling the circulation water of the engine cooling system from the outside in order to maintain the cooling efficiency of the absorption chiller and the engine efficiency when the external temperature is not constant. In order to adjust the intake air capacity control damper 16 is installed so that the maximum effect is maintained by attaching a motor 5 to the damper control that is sensed by the engine 3 temperature.

As described above, the present invention can prevent the risk of backflow of the liquid when driving the inclined place, which is the object of the present invention, during severe vibration and sudden stop, so that effective cooling can be performed, of course, absorption type It is very convenient, easy to operate, and economical operation is possible because it can automatically select and adjust the proper temperature of the refrigerator and engine. It can be economically solved, and it is useful to prevent the feeling of fuel and physical fatigue by efficient driving, and to allow the driver to perform a convenient and comfortable driving.

Claims (1)

In an absorption type cooling device using engine waste heat of an automobile, an impregnating agent (D) formed of cellulose or sponge is filled in a regenerator 12, an evaporator 18, and a vapor separator 13 included in the cooling device. Absorption cooling device using the engine heat of the vehicle, characterized in that.

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