KR20020081716A - Cooling system and heater for car - Google Patents

Abstract

PURPOSE: A system for heating and cooling of vehicle is provided to use waste heat of an engine without using power of the engine to heat and cool. CONSTITUTION: A system comprises a generator(20) heating aqueous solution of ammonia with a first coolant line(10) through which coolant heated in an engine passes to evaporate ammonia from water; a condenser(30) condensing ammonia evaporated in the generator with a second coolant line(12) through which coolant cooled in a radiator passes; an evaporator(40) formed so that liquefied ammonia cooled down in the condenser is sprayed by a refrigerant pump(19) at high pressure to cool down refrigerant passing a tube(61) of a heat exchanger(60); an aqueous solution vessel(50) formed to collect liquefied ammonia passing the evaporator, to mix with water returning from the generator and to re-supply to the generator with a pump(15); and the heat exchanger having the tube one part of which is formed to pass the evaporator and the other part of which is formed to pass a front side of a cooling fin(62) so that wind generated by an air blower(63) is cooled down.

Description

Heating and Cooling System for Vehicles {Cooling system and heater for car}

The present invention relates to a heating and cooling device of a vehicle, and more particularly, is formed by heating and gasifying an aqueous ammonia solution using high temperature cooling water discharged from an engine of a vehicle, and cooling the ammonia gas with cold cooling water supplied from a radiator. The present invention relates to a vehicle heating and cooling device for allowing a refrigerant to be used for indoor cooling of a vehicle.

In general, a vehicle's air conditioning system provides a comfortable environment for a person riding in a car in all weathers and conditions, and secures a driver's watch that prevents windshields and frosts from occurring. will be.

In particular, the conventional air conditioner of the vehicle, as shown in Figure 3, the refrigerant is liquefied and vaporized repeatedly to change the refrigerant, the refrigerant 101 is driven by the rotational force output from the engine 101 It becomes high temperature and high pressure | pressure, and is liquefied by the condenser 102 which cools the refrigerant | coolant which flows out from this compressor 101 to the temperature of outside air.

Of course, a fan 103 is installed outside the condenser 102 so that heat exchange can be easily performed.

The liquefied refrigerant is transferred to the receiver assembly 104 to remove dust and water mixed in the refrigerant, and is temporarily stored in the receiver assembly 104 and then vaporized through the expansion valve 105 to the evaporator 106. It is transported and vaporized while absorbing heat from outside air.

Thus, the conventional air conditioner installs a duct 107 outside the evaporator 106 and supplies low temperature air into the cabin by a blower 108 for forcibly transferring air through the duct 107. will be.

However, when the air conditioner of the vehicle is operated by the driving energy of the vehicle, and thus the energy of the vehicle is not efficiently utilized, when the air conditioner is operated while driving, the output of the vehicle is lowered and there is a disadvantage in terms of fuel efficiency. In addition, since the freon gas is used as the refrigerant, there are problems that seriously affect the environmental problems.

Therefore, the present invention has been made to solve the above problems, more specifically, by heating a gas of ammonia solution using a high temperature cooling water discharged from the engine of the vehicle to gasify, and ammonia gas to the cold cooling water supplied from the radiator An object of the present invention is to provide a cooling and heating device for a vehicle in which a refrigerant formed by cooling is used for cooling the vehicle indoors.

The present invention as a means for achieving the above object,

A generator for heating the aqueous ammonia solution to gasify the ammonia from the water by a first cooling water line through which the cooling water heated in the engine passes;

A condenser for cold condensation of ammonia gasified in the generator by a second coolant line through which coolant cooled in a radiator passes;

An evaporator formed to cool the refrigerant passing through the heat exchanger tube by spraying the liquid ammonia, which is coldly cooled in the condenser, at a high pressure by a refrigerant pump;

An aqueous solution container configured to collect liquid ammonia that has passed through the evaporator, mix with water returned from the generator, and then re-supply it to the generator by a pump;

A heat exchanger, wherein a portion of the tube is formed to pass through the evaporator, and the other portion of the tube is formed to pass through the front of the cooling fin, so that the wind blowing from the blower is cold; Characterized in that consists of,

A cooling valve is formed in the middle of the first cooling water line formed to flow to the generator side, and a third cooling water line is connected to the heater core and the heating blower side in front of the cooling valve, and the third cooling water line is heated during heating. It characterized in that the high-temperature cooling water to pass through.

1 is a view showing the operation of the air conditioner as a block diagram of a cooling and heating device according to the present invention.

Figure 2 shows the operation at the time of heating according to the present invention.

3 is a view for explaining a cooling system of a conventional general vehicle.

※ Explanation of code for main part of drawing

10: first cooling water line 11: cooling valve

12: second cooling water line 13: third cooling water line

14: heating valve 15: pump

16: supply hose 17: connection hose

18: return hose 19: refrigerant pump

20: generator 30: condenser

40: evaporator 50: aqueous solution container

60: heat exchanger 61: tube

62: cooling fin 63: blower

71: heater core 72: heating blower

Hereinafter, with reference to the accompanying drawings, an embodiment of the present invention will be described in detail.

1 is a block diagram showing the operation of the cooling and heating device according to the invention when the air conditioner, Figure 2 is a view showing the operation when heating the vehicle interior.

Reference numeral 20 shown in the figure indicates a generator, and reference numeral 30 indicates a capacitor.

A part of the first coolant line 10 through which the coolant heated by the engine flows passes through the case 21 of the generator 20, and an aqueous ammonia solution is introduced into the case 21 on one side of the generator 20. A supply hose 16 for supplying is connected. In addition, a connection hose 17 for discharging the ammonia gas vaporized by the first cooling water line 10 to the condenser 30 is formed above the case 21, and below the case 21. As a result, a return hose 18 for vaporizing ammonia in the aqueous ammonia solution and returning the remaining water is formed.

The condenser 30 is a condenser to receive the ammonia gas vaporized from the generator 20 to cool the condensation, and the second cooling water line in which the coolant cooled below a predetermined temperature in a radiator flows inside the condenser case 31. Part of (12) is passed. A connection hose 17 connected to an upper side of the generator 20 is connected to an upper side of the case 31 of the condenser 30, and a lower side of the case 31 is liquefied by the second cooling water line 12. It is connected with a refrigerant pump 19 for pumping ammonia.

An injection nozzle 41 is formed inside the evaporator 40 to inject the ammonia liquid pumped from the refrigerant pump 19 at a high pressure, and a lower portion of the heat exchanger 60 is disposed below the injection nozzle 41. A portion of the tube 61 is located.

An aqueous solution container 50 is formed on one side of the lower part of the evaporator 40, and the aqueous solution container 50 is atomized by ammonia liquid injected at high pressure from the injection nozzle 41, and thus inside the tube 61. In order to collect the dispersed ammonia solution in the process of cooling the solution, the collected ammonia liquid and the water returned from the generator 20 is mixed. The pump 15 is formed in the middle of the supply hose 16 in order to supply the aqueous solution in which the water and the ammonia liquid are mixed in the aqueous solution container 50 to the generator 20.

A solution (water or antifreeze) flows in the tube 61 of the heat exchanger 60, and a portion of the tube 61 passes through the interior of the evaporator 40 as described above. A portion of the tube 61 on the other side passes through the cooling fins 62. In front of the cooling fins 62, a blower 63 is formed to take the heat of the liquid passing through the tube 61 to be transferred to the cooling fins.

In addition, a cooling valve 11 is formed in front of the first cooling water line 10 to control the cooling water passing through the first cooling water line 10 by a driver's operation, and the cooling valve 11 is provided. In front of the third branch of the third cooling water line 13 is connected to the heater core 71 and the heating blower 72. The heating valve 14 is also formed in the middle of the third coolant line 13. This is to be selectively performed in some cases for heating and cooling the vehicle interior.

Referring to the operation of the air conditioner of the vehicle formed as described above is as follows.

When the engine is operated, the combustion heat of high temperature is transmitted to the cylinder block and the cylinder head by the combustion heat, and the cooling water flowing through the water jacket is also heated to cool it. The heated coolant is sent to a radiator, cooled to an appropriate temperature, and then circulated to cool the engine again.

After the engine is started in this way, when the driver operates the switch of the air conditioner provided in the driver's seat for cooling the vehicle interior, the cooling valve 11 is opened, and the cooling valve 11 is opened, thereby opening the first cooling water. High temperature coolant flows through the line 10. In addition, the pump 15 formed in the middle of the supply hose 16 is operated by a switch of the driver so that the aqueous ammonia solution stored in the aqueous solution container 50 is inside the case 21 of the generator 20. Is supplied.

As such, when the aqueous ammonia solution is supplied into the generator 20, the ammonia aqueous solution inside the case 20 of the generator 20 is heated by the heat of the high temperature cooling water passing through the first cooling water line 10. Ammonia, which is relatively easily evaporated in heat, is vaporized and water is returned to the aqueous solution container 50 along the return hose 18.

As described above, the ammonia gas vaporized in the generator 20 is moved to the case 31 of the condenser 30 along the connection hose 17. In this process, the ammonia gas introduced into the case 31 of the condenser 31 is liquefied again by the heat of cold coolant passing through the second coolant line 12. The liquefied pure ammonia liquid is stored at a predetermined level in the case 31 of the condenser 30 and then injected at high pressure through the injection nozzle 41 to the evaporator 40 by the operation of the refrigerant pump 19. . The high pressure ammonia injected from the injection nozzle 41 cools the liquid passing through the tube 61 of the heat exchanger 60 and the scattered ammonia is collected in the aqueous solution container 50 and returned from the generator 20. And mixed again with water.

The aqueous ammonia solution mixed with water and ammonia is supplied into the case 21 of the generator 20 by the pump 15 formed in the middle of the supply hose 16.

At this time, the liquid in the cool state flows into the tube 61 of the heat exchanger 60, and is heat-exchanged by the wind of the blower 63 formed in front of the cooling fan 62 to cool the inside of the vehicle cabin. Will be supplied.

On the contrary, in winter, when the driver operates the switch of the driver's seat for heating, the heating valve 14 is opened so that the coolant heated in the engine flows to the third cooling water line 13. The cooling water flowing to the third cooling water line 13 is heat-exchanged by the wind of the heating warmer 72 formed in front of the heater core 71 to supply the warmed air into the vehicle interior.

The air conditioner of the vehicle configured as described above does not use the engine's power as in the prior art but uses the waste heat (cooling water heat) of the engine to cool in summer and heat in winter, thereby increasing fuel economy of the vehicle and outputting power. This has the advantage of being raised, there is a large advantage that is environmentally friendly as the use of the pleon gas used as a refrigerant is conventionally suppressed.

Claims (2)

A generator 20 which heats the aqueous ammonia solution by the first cooling water line 10 through which the coolant heated in the engine passes and vaporizes the ammonia from the water; A condenser 30 for condensing ammonia gasified in the generator 20 by a second coolant line 12 through which coolant cooled by a radiator passes; Evaporator 40 which is formed to cool the refrigerant passing through the heat exchanger 60 tube 61 by the liquid ammonia is cooled in the condenser 30 is injected at a high pressure by the refrigerant pump (19) Wow; The aqueous solution formed by collecting the liquid ammonia passed through the evaporator 40, mixed with the water returned from the generator 20, and then re-supplied by the pump 15 to the generator 20 A container 50; A part of the tube 61 is formed to pass through the evaporator 40 described above, and the other part of the tube 61 is formed to pass in front of the cooling fin 62, so that the wind blowing from the blower 63 A heat exchanger 60 formed to be cold; Heating and cooling device of a vehicle, characterized in that consisting of. The method of claim 1, A cooling valve 11 is formed in the middle of the first cooling water line 10 formed to flow toward the generator 20, and the heater core 71 and the heating blower 72 are located in front of the cooling valve 11. The third cooling water line (13) connected to the side is branched, the heating and cooling device of a vehicle, characterized in that the high temperature coolant passes through the third cooling water line (13) when heating.