KR20040027055A - Monolithic movable an air conditioning system - Google Patents

Abstract

PURPOSE: An integrated type movable air conditioner is provided to locally supply cold wind to users. CONSTITUTION: A compressor(1) compresses refrigerant gas. Air cooling type condensers(20) are installed to condense the compressed refrigerant gas by a wire tube installed on a rear surface of an air conditioner case(5) in a natural convection method in the case that output of the compressor is under 250W, and to condense the compressed refrigerant gas by a cooling fan(21) installed inside the air conditioner case in a forcible convection method in the case that output of the compressor is over 250W. An expanding valve(3) expands the condensed refrigerant liquid to easily evaporate the refrigerant liquid. A cooling storage tank stores cooling storage substance in a low temperature state by using refrigerating power of a refrigerant evaporated by a refrigerant coil(6) passed through the expanding valve. A cooling storage type air cooler(30) exchanges heat with hot air passing through passages between cooling fins installed on an outer wall of the cooling storage tank.

Description

Monolithic movable an air conditioning system

According to the present invention, after accumulating and accumulating the storage medium (Brine) stored in the cold storage tank at a low temperature using a low temperature refrigerant gas that has passed through an expansion valve, the indoor hot air sucked during cooling is installed on the outer wall of the storage cooling tank. It can be generated as cold air through heat exchange while passing through the flow path between the fins, so that it can be used for partial cooling to supply locally cold air only to humans directly at work sites where high temperature and humidity cannot be cooled. One integrated mobile air conditioner is disclosed.

A refrigeration cycle of a general air conditioner for cooling includes a compressor (1) for compressing refrigerant gas as shown in FIG. 1, a condenser (2) for liquefying refrigerant gas compressed through the compressor (1), and the condenser. An expansion valve (3) for thermostating and dehumidifying the refrigerant liquid condensed in (2), and an evaporator (4) for thermosensitizing hot indoor air by using the refrigerant expanded through the expansion valve (3). Often the condenser 2 here is an outdoor unit and the evaporator 4 is called an indoor unit.

The conventional air conditioner having such a configuration was to cool the room while continuously forming a refrigeration cycle while the refrigerant gas evaporated through the evaporator 4 is recovered to the compressor 1 again.

However, the general air conditioner as described above focuses on cooling the entire room, and thus is partially localized only for people in the kitchens of underground shopping malls, production plants, restaurants, etc., which generally generate high temperatures or are difficult to install outdoor units. It was not effective because it could not be added.

In consideration of these problems, some integrated air conditioners installed in one unit of indoor and outdoor air are used, but in this case, condensation conditions of condensing the compressed gas by condensing the compressed gas by the high temperature and humidity of the outdoor air are caused by the high temperature emitted from the outdoor unit. This is not good because the pressure and temperature of the compressed gas is increased, the refrigerating capacity is drastically reduced due to the increase in the compression ratio, while the required power per refrigeration capacity is increased, causing a lot of electricity charges and another problem that shortens the life of the compressor It was to be.

In addition, to solve the problems caused by the integrated air conditioner "Patent Application No. 2001-11572 No. low power direct-cooling air-con" was proposed.

Looking at the invention of the prior application, using the cold coil installed in the refrigerant storage tank to generate the refrigerant (water) stored in the refrigerant storage tank at a low temperature, and then operate the circulation pump during cooling by supplying the refrigerant (water) to the indoor unit to perform the cooling After that, the refrigerating cycle for introducing the refrigerant into the refrigerant storage tank is repeated.

However, the present invention has the advantage that the refrigerant stored in the refrigerant storage tank at a low temperature when the air conditioner is not in operation can be used at the time of cooling by cooling, in order to cool by using the refrigerant stored in the refrigerant storage tank refrigerant storage tank Since a circulation pump and a piping line and a separate indoor unit must be provided to deliver the refrigerant of the present invention, a compact structure that must be integrated cannot be achieved. Was.

The present invention to actively solve the above problems, by using the refrigerating power of the low-temperature refrigerant gas evaporated in the evaporator of the air conditioner in advance in the form of low-temperature cooling medium (Brine) in the low-temperature cooling tank of the air-cooled air cooler. After storage, the cold air that is directly localized to a person in a hot or humid workplace or kitchen of a restaurant cannot convert the hot air in the room into cold air by using the axial cooling medium to cool the entire room. It is a main object of the present invention to provide an integrated mobile air conditioner that can be used for partial cooling to supply air.

The present invention for achieving the desired object is divided into a compressor for compressing the refrigerant gas at high temperature and high pressure, and a natural convection type wire tube (250W or less) and forced convection type (250W or more) according to the output of the compressor A basic structure is provided with an air-cooled condenser for liquefying compressed gas and an expansion valve for depressurizing and reducing the refrigerant liquid condensed through the condenser.

The present invention uses a refrigeration power of the refrigerant evaporated from the refrigerant coil passing through the expansion valve for storing the storage medium in a state of low temperature (about -10 ℃ or less) and a plurality of at a predetermined interval outside the storage tank By attaching cooling fins, the combined cooling air-cooler allows the hot air in the room to pass through the flow path between the cooling fins and exchange heat with cold cooling air. It can significantly reduce the power consumption, significantly reducing the operating cost.

1 is a configuration of a refrigeration cycle of a conventional air conditioner for cooling

2 is a configuration of a refrigeration cycle of the present invention natural convection air conditioner

3 is a configuration of a refrigeration cycle of the present invention forced convection air conditioner

Figure 4 is a longitudinal cross-sectional view of the assembled air conditioner of the present invention

5 is an exploded perspective view of the present invention cold storage air cooler

6 is a perspective view of the assembled state of the present invention cold storage air cooler

7 is a front sectional view showing the internal structure of the present invention cold storage air cooler

Figure 8 is a side cross-sectional view showing the internal structure of the present invention air-cooled air cooler

[Explanation of symbols on the main parts of the drawings]

1: compressor 6: refrigerant coil 10, 20: air cooled condenser

11: wire tube 30: cold storage air cooler 31: cold storage tank

32: storage medium 36: cooling fin 37: flow path

38: heat insulating material 39: first temperature sensor 39a: second temperature sensor

Hereinafter, preferred embodiments of the present invention will be described in detail.

The present invention is a compressor (1) for compressing the refrigerant gas as shown in Figures 2 and 3, the refrigerant gas compressed at a low output of less than 250W according to the output of the compressor (1) on the rear of the air conditioner case (5) The condensation is condensed by natural convection by the installed wire tube 11 and the condensed condensed by forced convection by the heat dissipation fan 21 installed inside the air conditioner case 5. The air-cooled condenser (10) and (20) classified into each, the expansion valve (3) for expanding the refrigerant liquid condensed by the air-cooled condenser (10) and (20) to facilitate evaporation, and the expansion valve (3) The refrigerant coil 6 to which the refrigerant liquid expanded through is supplied converts the refrigerant cooling medium 32 to a low temperature by using a refrigerant force of the refrigerant evaporating while passing through the interior of the storage cooling tank 31, and then directly into the compressor 1. On the other hand, the hot air in the room sucked during cooling is stored in a cold storage tank (3 1) The heat storage type air cooler (30) having a function of heat storage to heat the cold 37 while passing through the flow path 37 between the cooling fins 36 installed on the outer wall and store it at a low temperature (-10 ° C or less) is provided. It consists of a configuration that is integrally coupled.

Here, the integrated mobile air conditioner of the present invention to which the air-cooled condenser 2 is condensed by natural convection by the wire tube 11 does not need to separately install an exhaust hose for heat-dissipating air. It has a feature that can be used for partial cooling that can directly supply the localized temperature-sensitive cold air directly to the person from the back.

On the other hand, the key cooling configuration proposed as a core technical configuration of the present invention is a brine, which is a kind of cool storage medium 32 is stored in the cool storage tank 31 of the square, and the cool storage medium 32 is leaked in the upper and lower parts. The cover 33 (33a) which prevents is integrally attached. In this case, the upper cover 33 has an injection hole 34 for injecting the coolant medium 32 on one side of the upper surface, and a pair of through holes 35 for entering and exiting the refrigerant coil 6 on the other side of the injection hole 34. Is formed.

A plurality of cooling fins 36 are erectly installed on both outer walls of the cold storage tank 31 so as to protrude at a predetermined interval, and a flow passage 37 is naturally formed between the cooling fins 36, and the flow passage 37 ) Is converted into cold air through heat exchange while passing hot air in the room sucked by the air supply fan 7 during cooling, and serves as a cold storage function to store low temperature.

And the outer side of the heat storage tank 31 and the flow path 37 is installed to surround the heat insulating material 38 to prevent heat loss to the outside.

In addition, a first temperature sensor 39 for sensing a temperature of the coolant medium 32 is mounted in the cool storage tank 31, and a second temperature for sensing the temperature of the flow path 37 between the cooling fins 36. When each of the sensors 39a is mounted to reach the preset temperature set by the user, the power input to the compressor 1 is automatically cut off, and the driving of the compressor 1 is temporarily stopped. The power consumption can be reduced and at the same time the life of the compressor 1 can be extended.

Summarizing the complex functions of the storage cooling type air cooler 30 having such a configuration, first, evaporation means for evaporating the refrigerant liquid of the refrigerant coil 6 using the brine, the storage medium 32 stored in the storage cooling tank 31, The refrigerant liquid is circulated to natural convection caused by temperature and specific gravity, and the cooling means for storing the storage medium 32 at a low temperature, and the high temperature and high humidity indoor air sucked by the operation of the air supply fan 7 are wound. It includes all the cooling means for temperature and humidity.

As described above, the axial cooling air cooler 30 may be installed in plural numbers according to the axial cooling amount and the cooling blowing amount, and it is preferable to use a metal material having excellent thermal conductivity at the time of manufacturing, in particular, when using an aluminum material, the axial cooling tank 31 and Simultaneously extruding the cooling fins (36) and the pin case (36a), the upper and lower parts of the cold storage tank (31) is integrally coupled to the cover (33, 33a) by welding and the heat insulating material to block the heat loss to the outside (38) Install).

The brine storage medium 32 stored in the storage tank 31 is suitable for the characteristics of the device and the operating conditions and excellent antifreeze function and physicochemical stability in the form of an antifreeze that protects the device semi-permanently in the form of ethylene glycol, tree It is possible to use any one of elethylene glycol, polyelylene glycol, propylene glycol, texylene glycol, diethylene glycol, or a mixed solution of these.

Referring to the operating state of the present invention made of such a configuration as follows.

4 is an exemplary sectional view of an assembled cross-sectional view of an integrated refrigeration cycle using the compressor 1 of the cooling air conditioner of the present invention having a power of 250W or more, and when the power is turned on, the compressor 1 and the air-cooled condenser 2 are expanded. While the valve 3 is sequentially operated, the refrigerant liquid of the refrigerant coil 6 lowers the temperature of the refrigerant storage medium 32 stored in the refrigerant storage tank 31 through the evaporation action.

At this time, the compressor 1 is a flow path between the set temperature (for example, −10 ° C.) or the cooling fins 36 of the first temperature sensor 39 for sensing the temperature of the storage medium 32 stored in the storage tank 31. It operates until the set temperature (for example, 2 ° C.) of the second temperature sensor 39a for detecting the temperature of 37) cools the storage medium 32, and then automatically stops.

That is, the ON / OFF state of the compressor 1 is set by the first temperature sensor 39 and the second temperature sensor 39a by the set temperature of the storage medium 32 (for example, -10 ° C) or the set temperature of the flow path 37 (For example, 2 ° C.) is automatically turned off, and when the temperature of the flow path 37 rises to reach the driving set temperature (eg 5 ° C.) of the compressor 1, the second temperature sensor 39a detects this. By automatically restarting the compressor (1) to repeat the process of continuously cooling the storage medium (32).

When the compressor 1 is turned off and the air supply fan 7 is operated, hot air in the room sucked through the inlet 8 passes through the cooling fin 36 while passing through the flow passage 37 of the air-cooled air cooler 30. By the cold heat storage medium 32 is thermally dehumidified to supply the cool air to the air supply port 9 through the air supply fan (7).

At this time, the moisture in the air is collected in the condensate receiver (9-1) is discharged to the outside through the drain outlet (9-2).

Before the cooling operation, the storage cooling air cooler 30 of the present invention must first cool the storage cooling medium 32 inside the storage cooling tank 31 to a predetermined temperature, and then cannot perform the entire cooling. The direct cooling system can be used for partial cooling to supply cold air with localized temperature and humidity only to humans directly.

The present invention is a low-power compressor that is convenient to use and low in power consumption because it is free to install and move for partial cooling instead of full cooling in a work site or a high temperature and high humidity site where it is difficult to cool the existing air conditioner by means of an air-cooled air cooler. It is possible to drastically reduce operating costs.

In addition, the air-cooled air-cooled cooler functions as an evaporator as well as a cooling function, so it is not necessary to have a separate circulation pump, piping line, and evaporator, so that a compact structure can be realized, thereby reducing manufacturing costs. There is.

Claims (6)

A condenser (2) for liquefying the refrigerant gas compressed through the compressor (1), an expansion valve (3) for thermostating and dehumidifying the refrigerant liquid condensed in the condenser (2), and a refrigerant having passed through the expansion valve (3). Evaporator 4 for thermally dehumidifying hot indoor air using refrigerant of coil 6 and refrigerating cycle in which refrigerant gas evaporated through the evaporator 4 is recovered to compressor 1 again and again In the air conditioner for cooling, When the output of the compressor (1) is 250W or less, the natural convection method by the wire tube 11 installed on the rear of the air conditioner case (5), and if the output is 250W or more installed in the air conditioner case (5) An air-cooled condenser (10) (20) for liquefying the refrigerant gas compressed by the compressor (1) by the forced convection by the heat dissipation fan (21); The refrigerant coil 6 is converted into the low temperature refrigerant medium 32 to a low temperature by using the freezing force of the refrigerant that evaporates while passing through the inside of the cold storage tank 31, and then flows directly into the compressor 1, while being sucked during cooling. Integral portable air, characterized in that consisting of the air-cooled air cooler (30) to heat the cold air while passing through the passage 37 between the cooling fins 36 installed on the outer wall of the cold storage tank (31) Conditioner. The method according to claim 1, The axial cooling air cooler (30) has an inlet (34) for storing the axial cooling medium (32) therein and the cover (33) (33a) is integrally attached to the upper and lower parts, but injecting the axial cooling medium (32) into the upper cover (33). ) And a storage cooling tank 31 having a through hole 35 for entering and exiting the refrigerant coil 6; Cooling fins 36, which are installed in a plurality of upright at regular intervals on both outer walls of the cold storage tank 31; A flow path 37 formed between the cooling fins 36 and converted into cold air through heat exchange while hot air in the sucked room passes; Integral portable air conditioner, characterized in that made of a heat insulating material (38) installed to surround the heat storage tank 31 and the flow path (37) to prevent heat loss. The method according to claim 1, An accumulator-type air cooler (30) is an integrated mobile air conditioner, characterized in that provided in plurality in accordance with the amount of cooling and cooling blown. The method according to claim 1 or 2, The axial cooling air cooler (30) is an evaporation means for evaporating the refrigerant liquid of the refrigerant coil (6) through the axial cooling medium (32) stored in the axial cooling tank (31), and the circulating cooling medium while being circulated by natural convection due to temperature and specific gravity ( 32. An integrated portable air conditioner, comprising: cold storage means for storing the 32 in a low temperature state, and cooling means for dehumidifying the air of a high temperature and high humidity inhaled by the operation of the air supply fan (7). The method according to claim 2, The storage cooling air cooler 30 has a first temperature sensor 39 for sensing the temperature of the storage medium 32 and a second temperature sensor 39a for sensing the temperature of the flow path 37 between the cooling fins 36. Is mounted on each of the inner and outer regions of the storage cooling tank (31) to control the power to be introduced into the compressor (1) by the set temperature. The method according to claim 2, The cold storage tank 31 and the cooling fins 36 of the cold storage air cooler 30 are made of a metal material having excellent heat transfer property.