KR101788247B1 - Air conditioning system - Google Patents

Air conditioning system Download PDF

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Publication number
KR101788247B1
KR101788247B1 KR1020160030428A KR20160030428A KR101788247B1 KR 101788247 B1 KR101788247 B1 KR 101788247B1 KR 1020160030428 A KR1020160030428 A KR 1020160030428A KR 20160030428 A KR20160030428 A KR 20160030428A KR 101788247 B1 KR101788247 B1 KR 101788247B1
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South Korea
Prior art keywords
air
air inlet
pipe
condensed water
inlet pipe
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KR1020160030428A
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Korean (ko)
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KR20160110269A (en
Inventor
이동철
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청아에스티 주식회사
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28—Arrangement or mounting of filters
    • F24F3/1603—
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
    • F24F2013/227—Condensate pipe for drainage of condensate from the evaporator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F24F2013/228—Treatment of condensate, e.g. sterilising

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)

Abstract

The air conditioning system according to the present invention includes a main body having an outside air inlet for introducing outside air, an air inlet for re-entraining air used in the room, and a discharging outlet for supplying heat-exchanged air to the room, A main heat exchanging unit for cooling the mixed air passing through the air filter, and a cooling / heating unit for cooling / heating the air exchanged in the main heat exchanging unit and installed downstream of the main heat exchanging unit A blower installed between the air filter and the main heat exchange unit to be connected to the air outlet so as to forcibly discharge the air in the main body through the air outlet; Or preheating the preheated heat exchange unit. The air conditioning system according to the present invention can preheat or preheat the return air and the outside air introduced from the outside and preheat or preheat the outside air to the preliminary heat exchange unit to improve the heat exchange efficiency by the main heat exchange unit and to save time for heat exchange.

Description

AIR CONDITIONING SYSTEM

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioning system, and more particularly to an air conditioning system installed in a building or a factory for cooling and heating a room.

In general, the air conditioning system is a device that adjusts the temperature of the air supplied to the room, the humidity, the airflow, and the cleanliness to the optimum condition so that they can be harmonized. Air systems are roughly divided into small-sized air-conditioning systems used for household use and large-scale air-conditioning systems used in large spaces such as buildings and factories.

Such an air conditioning system commonly has a basic air circulation cycle in which indoor air introduced through an inlet is heat-exchanged and filtered at a high temperature or a low temperature so that the indoor air is re-introduced into the indoor space. That is, the air supplied to the indoor air flow channel is again heated or cooled, and then supplied to the indoor air flow channel again. At this time, the return air returned to the air conditioning system does not reach the supply air amount that was supplied to the indoor air channel, so it mixes the outdoor air with the return air, and then heat exchanges with the return air. In winter, heat is exchanged with hot air, and in summer, heat-exchanged cold air is blown into the room, thereby heating and cooling the room.

However, in the case of the summer season or the winter season, the outside air is introduced to heat exchange the air, and then the indoor air is supplied. At this time, if the temperature of the outside air is too high or low, the heat exchanging ability of the heat exchanger is deteriorated.

In addition, when the temperature of the inflow air is too high or low, the temperature of the air supplied through the heat exchanger to the inside of the room is actually lower or higher than the desired temperature. As a result, the over- have.

In addition, when the air supplied to the room is circulated back to the air conditioning system, and the return air mixed with the outside air is supplied to the room again, the heat exchange capacity of the heat exchanger is lowered when the temperature is too high or low have.

On the other hand, the air conditioning system includes a heat exchanger using a refrigerant circulation cycle, and air is passed through the heat exchanger to cool or heat the air. However, on the outer surface of the heat exchanger, condensed water is generated due to the temperature difference between the refrigerant flowing in the refrigerant and the air flowing through the refrigerant. Therefore, a drain pan for collecting and discharging the condensed water flowing down from the heat exchanger is installed on the lower side of the heat exchanger of the air conditioning system.

In the drain pan, a discharge pipe for discharging the condensed water to the outside is connected to the outside of the air conditioning system, and a discharge pipe is provided with a U-shaped pipe-shaped trap. The trap serves to smoothly discharge the condensed water collected in the drain pan to the outside, and to block the outside air or dust from entering the inside of the air conditioning system. In order to maintain this shut-off function, ie the airtightness between the inside and the outside of the air conditioning system, the trap must maintain a head height above the minimum height. This head overcomes the pressure difference acting before and after the heat exchanger and prevents the condensed water and the outside air inside the trap from flowing back into the air conditioning system.

Therefore, when the pressure difference acting before and after the heat exchanger is large, it is necessary to increase the height in order to maintain the minimum height of the head related to airtightness. Therefore, in places where the head of the minimum height can not be secured, The air conditioning system should be separated from the ground by a certain height.

As described above, in the conventional air conditioning system, there is a limitation in the installation place due to the trap installation, and there is a problem that installation cost and air are increased.

Patent Registration No. 1024699 (Mar. 25, 2011) Patent Registration No. 0600090 (July 07, 2006)

SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the conventional art as described above, and it is an object of the present invention to improve the heat exchange efficiency by preheating not only the outside air flowing into the outer rotor but also the return air in the room, The present invention has been made in view of the above problems.

It is another object of the present invention to provide an improved air conditioning system capable of smoothly discharging condensed water collected in a drain pan to the outside without using a trap for securing a water head at a predetermined height.

According to an aspect of the present invention, there is provided an air conditioning system including an air inlet for introducing outside air, an air inlet for re-entering air used in the room, and a discharge outlet for discharging the heat- ; An air filter which is introduced into the outside air inlet and the air inlet and filters the mixed air mixed therein; A main heat exchange unit for cooling the mixed air passing through the air filter; A correction unit installed downstream of the main heat exchange unit for cooling or heating the heat-exchanged air in the main heat exchange unit to correct the temperature of the air to be supplied to the room; A blower installed to be connected to the air outlet so as to forcibly discharge air in the main body through the outlet; A preliminary heat exchange unit installed between the air filter and the main heat exchange unit for precooling or preheating the mixed air in advance; A condensate collector disposed below the main heat exchange unit and the preliminary heat exchange unit so as to collect condensate generated in the main heat exchange unit and the preliminary heat exchange unit; A discharge pipe connected to the condensed water collection case for discharging the condensed water collected in the condensed water collection case to the outside; And an air inlet pipe connecting the inner space of the main body and the inside of the condensed water collecting container so as to introduce air sucked into the main body through the air inlet of the main body into the condensate collecting container, The inlet of the air inlet pipe is located upstream of the correction unit and the air inlet pipe is opened only when a predetermined amount or more of condensed water is filled in the condensed water collecting container so that air in the main body flows into the condensate collecting container And an inlet pipe valve is provided.
The float collecting container may further include a float for floating the condensed water collected in the condensed water collecting container and operating the air inlet pipe valve by moving up and down according to the level of the condensed water.
The air inlet pipe valve is rotatably installed inside the air inlet pipe so as to be able to open and close the internal flow passage of the air inlet pipe by being coupled with the air inlet pipe rotary shaft installed through the side wall of the air inlet pipe And an air inflow pipe lever having an air inflow pipe open / close plate and disposed outside the air inflow pipe so as to be engaged with the air inflow pipe rotation axis and operated by the float.
A sterilizing liquid storage tank for storing sterilizing liquid for sterilizing the inside of the condensed water collecting container; An air inlet connected to the inner space of the main body so that air sucked into the main body can be introduced through an air inlet of the main body; A spray tube having a nozzle disposed therein; And a sterilizing liquid stored in the sterilizing liquid storage tank is sucked by a suction force caused by the flow of air passing through the spray tube, and one end is connected to the inside of the sterilizing liquid storage tank so as to be mixed into the air passing through the spray tube And the other end is connected to the middle of the spray tube.
In addition, a throttling portion is provided in the middle of the spray tube so that the inner flow path width is reduced, and the other end of the sterilizing liquid suction tube is connected.
The apparatus may further include an acceleration fan rotatably installed inside the spray tube to increase a flow rate of air flowing along the spray tube.
The discharge pipe is further provided with a discharge pipe valve which is opened by the float to allow air in the main body to pass through the discharge pipe when a predetermined amount or more of condensed water is filled in the condensed water collecting container.
The air inlet pipe valve is rotatably installed inside the air inlet pipe so as to be able to open and close an internal flow passage of the air inlet pipe by being coupled with an air inlet pipe rotary shaft installed through the side wall of the air inlet pipe And an air inflow pipe open / close plate, wherein the injection pipe valve is coupled to a rotation axis of the injection pipe installed through the sidewall of the injection pipe and rotatable inside the injection pipe so as to open and close the internal flow path of the injection pipe The air conditioning system according to the present invention includes an air inlet pipe lever disposed outside the air inlet pipe to be engaged with the rotation shaft of the air inlet pipe and operated by the float, A spray pipe lever disposed outside the spray pipe to be engaged with the spray pipe rotary shaft and operated by the float; And a guide bar vertically installed on the inner side of the condensed water collecting container so as to be inserted into a through hole provided in the float to guide the float up and down.

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The air conditioning system according to the present invention improves the heat exchange efficiency by the main heat exchange unit by mixing the return air with the outside air introduced from the outside and precooling or preheating the preliminary heat exchange unit in advance to save time for heat exchange, There is an advantage that the load can be reduced.

In addition, the air conditioning system according to the present invention allows the air to be introduced into the condensed water collecting container through the air inlet pipe, thereby preventing the pressure in the condensate collecting container from being lowered, so that the condensed water collected in the condensate collecting container can be discharged smoothly have. Therefore, it is not necessary to provide a trap for securing a head of a predetermined height to the discharge pipe for discharging the condensed water as in the conventional art. The trap can be omitted and the structure of the discharge pipe can be simplified. Further, the installation position of the discharge pipe can be made more freely than in the past, the limitation of the installation place is small, and installation cost and air can be reduced.

Further, the air conditioning system according to the present invention can suppress the propagation of bacteria in the condensed water collecting container by supplying the sterilizing liquid to the condensed water collecting container by the sterilizing liquid supplying device.

1 is a front view showing an air conditioning system according to an embodiment of the present invention.
2 is a plan view of an air conditioning system according to an embodiment of the present invention.
3 shows a part of the configuration of an air conditioning system according to an embodiment of the present invention.
4 is a side view showing a condensed water collecting container and a peripheral structure of the air conditioning system according to an embodiment of the present invention.
5 shows a part of the configuration of an air conditioning system according to another embodiment of the present invention.
6 is a bottom view of the air inlet pipe of the air conditioning system shown in Fig.
Fig. 7 is a view for explaining a condensed water discharge method of the air conditioning system shown in Fig. 5;
Fig. 8 is a view for explaining the sterilizing liquid spraying method of the air conditioning system shown in Fig. 5;

Hereinafter, an air conditioning system according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a front view showing an air conditioning system according to an embodiment of the present invention, FIG. 2 is a plan view showing an air conditioning system according to an embodiment of the present invention, and FIG. 3 is a view showing an air conditioning system according to an embodiment of the present invention. FIG. 4 is a side view showing a condensed water collecting container and a peripheral structure of the air conditioning system according to an embodiment of the present invention.

1 to 4, an air conditioning system according to an embodiment of the present invention includes an outside air inlet 101 into which outside air is introduced, an air inlet 102 through which air used in the room is re- An air filter 150 for filtering the air mixed into the outside air inlet 101 and the air inlet 102 and for filtering the air mixed in the air filter 150; A correction unit 250 that heats or cools the heat exchanged air in the heat exchanger 210 to correct the temperature of the air to be supplied to the room, A blower 300 for discharging the air in the main body 110 through a discharge port 103 and a blower 300 installed below the heat exchanger 210 for collecting condensed water C falling off the heat exchanger 210 And a condensate collecting cylinder 410.

The main body 100 is fixedly mounted on the support surface 10 and may have a cabinet structure. The main body 100 can be installed inside the building. The outside air and the return air respectively introduced through the outside air inlet 101 and the air inlet 102 of the main body 100 are mixed at the upstream side of the air filter 150 inside the main body 110 and passed through the air filter 150, (210). The main body 110 includes a first cabinet 110 in which an air filter 150, a heat exchanger 210 and a correction unit 250 are installed, and a second cabinet 110 connected to the first cabinet 110 and having a discharge port 103, And a second cabinet 120 on which the first cabinet 300 and the second cabinet 120 are installed. Dampers 101a and 102a for adjusting the amount of inflow air are installed in the outside air inlet 101 and the air inlet 102, respectively.

The heat exchanger 210 receives the refrigerant from the heat source supply unit 240 to cool or heat the air that has passed through the air filter 150. As the heat source supply unit 240, there can be used various types of structures that can supply a heating medium for cooling or heating air to the heat exchanger 210, such as using a refrigeration cycle using a refrigerant.

The heat exchanger 210 includes a main heat exchange unit 220 and a preliminary heat exchange unit 230. The main heat exchanging unit 220 is disposed in the interior of the main body 110 relatively downstream in the air flow direction and the auxiliary heat exchanging unit 230 is disposed upstream of the main heat exchanging unit 220. The preheating or preheating of the air flowing through the preliminary heat exchanging unit 230 may be preheated and the main heat exchanging unit 220 may exchange heat with the air to increase the heat exchange efficiency of the air.

The preliminary heat exchange unit 230 is operated by being supplied with the heat medium recovered by the heat source supply unit 240 after being used for heat exchange in the main heat exchange unit 220. The preliminary heat exchanging unit 230 is used in the main heat exchanging unit 220 and receives the recovered heat medium so that the return air flowing through the air inlet 102 as well as the outside air flowing through the outside air inlet 101 is previously It can be cooled to temperature or preheated.

The correction unit 250 is provided downstream of the main heat exchange unit 220 and serves to correct or correct the temperature of the air that has been excessively heat-exchanged (cooled or heated) by the main heat exchange unit 220, do. The correction unit 250 may have a coil structure to which hot water or cold water is supplied. The correction unit 250 may selectively supply a heating medium such as hot water or cold water from the heat source feeder 260 and correct the temperature of the air passing around the heating medium to an appropriate temperature.

A humidifier 270 for supplying steam (water vapor) to the inside of the main body 110 is installed downstream of the correction unit 250 inside the main body 110. The humidifier 270 includes a steam injection nozzle. The humidifier 270 can control the humidity of the air supplied to the room by heat exchange by supplying steam to the inside of the main body 110. The humidifier 270 may be connected to the heat source feeder 260 to receive steam.

The blower 300 includes a blowing fan 310 installed inside the second cabinet 120, a driving motor 320 for driving the blowing fan 310, and a driving motor 320, And a power transmission unit 330 for delivering the power to the vehicle. The power transmitting portion 330 may include a power transmission belt, a pulley, and the like.

The air exchanged in the first cabinet 110 can be discharged to the discharge port 103 by the blower 300 and supplied to the room. A damper 103a for adjusting the amount of discharged air is provided in the discharge port 103 and an air duct 340 is provided between the blowing fan 310 and the discharge port 103. [

The condensate collector 410 is installed below the heat exchanger 210 to collect the condensed water C generated in the heat exchanger 210. When the main heat exchange unit 220 and the preliminary heat exchange unit 230 heat exchange the air passing through the air filter 150, the temperature difference between the heat medium flowing through the inside of the main heat exchange unit 220 and the air, Condensation water C may be generated on the outer surface of each of the heat exchange units 230. The condensed water C flows along the outer surface of each of the main heat exchange unit 220 and the preliminary heat exchange unit 230 and is collected in the condensate collection chamber 411 inside the condensed water collection cylinder 410. The upper surface of the condensate collector 410 is covered with a cover 420 and connected to the heat exchanger 210 so that the condensed water C flowing in the heat exchanger 210 can flow into the condenser water.

A discharge pipe 430 is connected to one side of the condensate collector 410. One end of the discharge pipe 430 is connected to the condensate collection chamber 411 of the condensed water collection container 410 and the other end thereof is located outside the condensed water collection container 410. Accordingly, the discharge pipe 430 can discharge the condensed water C collected in the condensed water collecting chamber 411 to the outside of the condensed water collecting container 410.

An air inlet pipe 440 is connected to the other side of the condensate collecting cylinder 410. The inlet 441 at one end of the air inlet pipe 440 is connected to the internal space of the main body 110 and the outlet 442 at the other end of the air inlet pipe 440 is connected to the condensate collection chamber 411 . A part of the air introduced into the main body 110 through the air inlet 102 flows into the inlet 441 of the air inlet pipe 440 and flows through the outlet 442 into the condensed water collecting chamber 410 of the condensed water collecting cylinder 410 (411). When the pressure of the condensed water collecting chamber 411 is lowered due to the flow of air passing through the heat exchanger 210 after being sucked into the main body 110 while the air conditioning system is operating, the condensed water collected in the condensed water collecting chamber 411 Can be smoothly discharged to the outside through the discharge pipe 430. Such problem can be alleviated by supplying air to the inside of the condensed water collecting container 410 through the air inflow pipe 440. That is, air is introduced into the condensed water collecting chamber 411 through the air inlet pipe 440 to prevent the pressure of the condensed water collecting chamber 411 from being lowered, thereby discharging the condensed water C collected in the condensed water collecting chamber 411 to the discharge pipe 430).

Although two air inlet pipes 440 are shown in the figure, the number of the air inlet pipes 440 and the installation positions thereof are not limited to those shown in the drawings, and may be variously changed. Although the inlet 441 of the air inlet pipe 440 is disposed downstream of the air filter 150 inside the main body 110 so that air having passed through the air filter 150 can be introduced into the air inlet pipe 440, The position of the inlet 441 of the air inflow pipe 440 is not limited to that shown in the drawing and can be changed to various other positions into which the air introduced into the main body 110 can be introduced.

As described above, in the air conditioning system according to the present embodiment, the outside air introduced from the outside through the outside air inlet 101 and the air returned and re-introduced from the inside of the room are preheated or preheated by the preliminary heat exchange unit 230, It is possible to further shorten the time required for heat exchange to the proper temperature in the unit 220, increase the driving efficiency of the heat source supply unit 240, and prevent a failure due to overload. That is, since the amount of air returned from the indoor side is about 70% of the amount supplied, the remaining air needs to be supplied by circulating the indoor air again by introducing the outside air. At this time, The preheating or preheating by the preliminary heat exchanging unit 230 in the state of being mixed with the outside air can increase the heat exchange efficiency in the main heat exchanging unit 220 and increase the air conditioning efficiency while reducing the overload.

Further, since the temperature of the air can be adjusted to an appropriate temperature by the correction unit 250, the temperature of the room can be stably maintained, and the room temperature can be accurately controlled to a desired temperature.

The air conditioning system according to the present embodiment can prevent the pressure of the condensed water collecting chamber 411 from being lowered by allowing air to flow into the condensed water collecting chamber 411 through the air inflow pipe 440, It is possible to smoothly discharge the condensed water C through the discharge pipe 430. Therefore, it is not necessary to provide a trap for securing a head of a predetermined height to the discharge pipe for discharging the condensed water as in the conventional art. The trap can be omitted and the structure of the discharge pipe 430 can be simplified. In addition, the installation position of the discharge pipe 430 can be made more freely than in the past, the limitation of the installation place is small, and installation cost and air can be reduced.

Meanwhile, FIG. 5 shows a partial configuration of an air conditioning system according to another embodiment of the present invention.

The air conditioning system shown in FIG. 5 includes a condensate collector 410, an air inlet pipe 510 connected to the condensate collector 410, a float 610 installed inside the condenser collector 410, And a sterilizing liquid supply device 700 for sterilizing the interior of the collection cylinder 410. In addition, the air conditioning system according to the present embodiment has components for heating or cooling air such as a heat exchanger (not shown) and a blower (not shown) as well as the above-described air conditioning system.

The condensate collector 410 is installed below the heat exchanger to collect the condensed water C generated in the heat exchanger. The upper surface of the condensate collector 410 is covered with a cover 420 and is connected to the heat exchanger so that the condensed water C flowing in the heat exchanger can flow into the condenser water.

A discharge pipe 430 is connected to one side of the condensate collector 410. One end of the discharge pipe 430 is connected to the condensate collection chamber 411 of the condensed water collection container 410 and the other end thereof is located outside the condensed water collection container 410. Accordingly, the discharge pipe 430 can discharge the condensed water C collected in the condensed water collecting chamber 411 to the outside of the condensed water collecting container 410.

The air inlet pipe 510 is connected to the other side of the condensate collector 410. The inlet 511 at one end of the air inlet pipe 510 is connected to the internal space of the main body 110 and the outlet 512 at the other end of the air inlet pipe 510 is connected to the condensate collection chamber 411 . A part of the air introduced into the main body 110 through the air intake port 102 flows into the inlet 511 of the air inlet pipe 510 and flows through the outlet 512 to the condensate water collecting chamber 410 (411). The condensed water C collected in the condensed water collecting chamber 411 is discharged to the discharge pipe 430 by preventing air from flowing into the condensed water collecting chamber 411 through the air inflow pipe 510 to prevent a pressure drop in the condensed water collecting chamber 411, So that it can be discharged smoothly.

When a part of the air sucked into the main body 110 is supplied to the inside of the condensed water collecting cylinder 410 through the air inlet pipe 510, a pressure loss occurs in the internal space of the main body 110. This pressure loss can reduce the efficiency of the air conditioning system. In order to reduce this problem, an air inflow pipe valve 520 is installed in the air inflow pipe 510. The air inlet pipe valve 520 opens and closes the internal flow passage of the air inlet pipe 510 so that the air in the internal space of the main body 110 flows into the air inlet pipe 510 only when a predetermined amount or more of condensed water C is filled in the condensed water collecting container 410. [ (410) of the condensing water collecting cylinder (410).

5 and 6, the air inflow pipe valve 520 is rotatably installed inside the air inflow pipe 510 and includes an air inflow pipe open / close plate (not shown) that opens and closes the internal flow path of the air inflow pipe 510 521). The air inlet pipe opening / closing plate 521 is coupled with a pair of air inlet pipe rotary shaft 530 installed through the side wall of the air inlet pipe 510 and rotates about the air inlet pipe rotary shaft 530 about the rotation center axis. When the air inlet pipe opening / closing plate 521 is disposed perpendicular to the air flow direction inside the air inlet pipe 510, the internal flow passage of the air inlet pipe 510 is sealed. As the air inlet pipe opening / closing plate 521 is rotated and tilted, the internal flow path of the air inlet pipe 510 is opened.

The air inlet pipe opening / closing plate 521 is moved by the air inlet pipe lever 540 disposed outside the air inlet pipe 510. The air inlet pipe lever 540 is disposed outside the air inlet pipe 510 so as to be coupled with the pair of air inlet pipe rotary shaft 530 and rotates around the air inlet pipe rotary shaft 530 as a rotation center axis. The air inlet pipe lever 540 is rotated in one direction by the float 610. An air inlet pipe stopper 550 is provided at one side of the outer surface of the air inlet pipe 510 to limit the rotation angle of the air inlet pipe lever 540. The air inlet pipe lever 540 is rotated in a direction opposite to the rotation direction by the float 610 due to its own weight when it is not subjected to the force from the float 610. The air inlet pipe stopper 550 Is limited. The air inlet pipe stopper 550 supports the air inlet pipe lever 540 in a state in which the air inlet pipe opening / closing plate 521 closes the internal flow path of the air inlet pipe 510. Therefore, if the float 610 does not lift one side of the air inlet pipe lever 540 upward, the air inlet pipe opening / closing plate 521 will keep the internal flow path of the air inlet pipe 510 closed.

The float 610 is constructed so as to float above the condensed water C collected in the condensate collection tube 410. The float 610 floats on the condensed water C and moves up and down according to the level of the condensed water C to operate the air inlet pipe lever 540. The float 610 is coupled to a guide bar 620 installed inside the condensate collection tube 410 vertically to the ground. A through hole 611 through which the guide bar 620 is inserted is provided in the middle of the float 610. The float 610 can move linearly up and down along the guide bar 620. On the upper surface of the float 610, a pressing portion 612 is provided. The pressurizing portion 612 extends toward the air inlet pipe lever 540 so as to be in contact with the air inlet pipe lever 540 coupled to the air inlet pipe 510. The guide bar 620 is provided with an engaging member 630 for preventing the float 610 from being separated from the guide bar 620.

7, when the level of the condensed water C collected inside the condensed water collecting cylinder 410 becomes equal to or higher than the set height, the float 610 rises and the air inlet pipe lever 540 ). At this time, the air inlet pipe lever 540 rotates to rotate the air inlet pipe opening / closing plate 521, so that the internal flow path of the air inlet pipe 510 is opened. The air introduced into the main body 110 through the air inlet pipe 510 is supplied to the inside of the condensed water collecting container 410 so that the pressure inside the condensed water collecting container 410 The condensed water C collected in the condensed water collecting container 410 can be discharged smoothly through the discharge pipe 430. [

Meanwhile, when the condensed water C is discharged through the discharge pipe 430 and the water level of the condensed water C is lowered to a certain height or lower inside the condensed water collecting drum 410, the float 610 descends. At this time, while the air inlet pipe lever 540 is rotated by its own weight, the air inlet pipe opening / closing plate 521 is rotated in a direction closing the internal flow pipe 510 so that the air inlet pipe open / Thereby closing the internal flow path of the air inlet pipe 510.

5, 7, and 8, the sterilizing liquid supply device 700 includes a sterilizing liquid storage tank 710, a spray tube 720, and a sterilizing liquid suction tube 730. The sterilizing liquid supply device 700 supplies sterilizing liquid S to the interior of the condensed water collecting container 410 to sterilize the interior of the condensed water collecting container 410. The condensed water (C) is collected in the condensed water collecting container (410) and the humid environment is maintained, so that the harmful bacteria tend to reproduce. The bacteria that reproduce in the condensate collecting container (410) And can be introduced into the room through the discharge port 103. [ The sterilizing liquid supply device 700 reduces the problem of bacterial contamination by suppressing the propagation of bacteria by supplying the sterilizing liquid S into the condensing water collecting container 410.

The sterilization liquid storage tank 710 has a sterilization liquid storage chamber 711 capable of storing a predetermined amount of sterilization liquid S and is installed inside the condensate collection tube 410. At one side of the sterilizing liquid storage tank 710, a connection pipe 715 extending to the outside of the main body 110 is provided. The sterilizing liquid S can be replenished to the sterilizing liquid storage tank 710 through the connection hole 716 at the end of the connection pipe 715.

The spray tube 720 extends from the internal space of the main body 110 to the condensed water collecting chamber 411 of the condensed water collecting drum 410 so that the air sucked into the main body 110 is introduced into the condensed water collecting drum 410 . An air inlet 721 is provided at one end of the spray tube 720. A nozzle 722 is provided at the other end of the spray tube 720. The air inlet 721 is connected to the inner space of the main body 110 so that air sucked into the main body can be introduced. The nozzle 722 is connected to the condensate collection chamber 411 so as to inject the sterilizing liquid S mixed in air and air flowing along the spray pipe 720 into the condensate collection chamber 411. In the middle of the spray tube 720, a throttling portion 723 to which the sterilizing liquid suction tube 730 is connected is provided. The throttling portion 723 is provided in a reduced form with an internal flow path to raise the flow rate of the air in the spray pipe 720 to increase the suction efficiency of the sterilizing liquid S through the sterilizing liquid suction pipe 730. An expansion portion 724 is provided at an end of the injection pipe 720 where the air inlet 721 is formed. The expansion portion 724 serves to collect the air around the air inlet 721 to the air inlet 721. The amount of air inflow through the air inlet 721 can be increased by using the expansion portion 724. [

The sterilizing liquid suction pipe 730 connects the inside of the sterilizing liquid storage tank 710 and the spray tube 720 so as to absorb the sterilizing liquid S stored in the sterilizing liquid storage tank 710. One end of the sterilizing liquid suction pipe 730 is disposed inside the sterilizing liquid storage tank 710 and the other end of the sterilizing liquid suction pipe 730 is connected to the throttling portion 723 of the spray pipe 720. A suction force is generated due to a pressure drop due to the air flow at the throttle portion 723 of the spray tube 720 and the sterilizing liquid S stored in the sterilizing liquid storage tank 710 is sucked through the sterilizing liquid suction tube 730 have. The sterilizing liquid S sucked into the sterilizing liquid suction pipe 730 is mixed with the air flowing through the spray pipe 720 and is injected into the condensed water collecting container 410 together with air to sterilize the inside of the condensate collecting container 410 .

A discharge pipe valve 740 for opening and closing the internal flow path of the discharge pipe 720 is installed in the discharge pipe 720 for the reason that the air inflow pipe valve 520 is installed in the air inflow pipe 510. The spray pipe 740 has a spray pipe open / close plate 741 which is rotatably installed inside the spray pipe 720 and opens and closes the internal flow path of the spray pipe 720. The sprayer opening / closing plate 741 is coupled to a pair of spraying pipe rotating shafts 750 installed through the side wall of the spraying pipe 720 and rotates about the spraying pipe rotating shaft 750 as a rotating center axis. The inner flow path of the spray tube 720 is sealed when the spray tube open / close plate 741 is disposed perpendicular to the air flow direction inside the spray tube 720. As the spray opening / closing plate 741 is rotated and tilted, the internal flow path of the spraying pipe 720 is opened.

The spray gun opening / closing plate 741 is moved by a spray gun lever 760 disposed outside the spray gun 720. The spray tube lever 760 is disposed outside the spray tube 720 so as to be coupled to the pair of spray tube rotating shafts 750 and rotates about the spray tube rotating shaft 750 as a rotation center axis. The jetting tube lever 760 is rotated in one direction by the float 610. A spray tube stopper 770 for limiting the rotation angle of the spray tube lever 760 is provided at one side of the outer surface of the spray tube 720. The spray tube lever 760 rotates in a direction opposite to the rotation direction by the float 610 due to its own weight when it is not receiving a force from the float 610. The spray tube lever 760 is rotated by its own weight by the spray tube stopper 770 Is limited. The spray tube stopper 770 supports the spray tube lever 760 in a state in which the spray tube open / close plate 741 seals the internal flow path of the spray tube 720. Therefore, if the float 610 does not lift one side of the spray pipe lever 760 upward, the spray pipe open / close plate 741 will keep the internal flow path of the spray pipe 720 closed.

7, when the level of the condensed water C collected inside the condensed water collecting cylinder 410 becomes equal to or higher than a set height, the float 610 rises and the spraying pipe lever 760 is pushed to the pressing portion 612. [ And lifts one side of it. At this time, the spray pipe lever 760 rotates to rotate the spray pipe open / close plate 741 so that the internal flow path of the spray pipe 720 is opened. When the internal flow path of the spray tube 720 is opened, air flows along the spray tube 720 to suck the sterilizing liquid S stored in the sterilizing liquid storage tank 710 and spray it into the condensed water collecting tube 410 have.

On the other hand, if the water level of the condensed water C is lowered to a certain height or lower inside the condensate collector 410, the float 610 descends. At this time, the spraying tube lever 760 rotates by its own weight to rotate the spraying tube opening / closing plate 741 in a direction to seal the internal flow path of the spraying tube 720. The spraying opening and closing plate 741 closes the internal flow path of the spraying tube 720 again and the supply of the sterilizing liquid S is stopped.

Referring to FIG. 8, an acceleration fan 780 is installed in the middle of the injection pipe 720. The accelerator fan 780 is rotatably installed inside the spray tube 720 to increase the flow rate of the air flowing along the spray tube 720. The suction efficiency of the sterilizing liquid S through the sterilizing liquid suction pipe 730 can be increased by raising the flow velocity of the flowing air to the accelerator fan 780.

As described above, the air conditioning system according to the present embodiment includes a sterilizing liquid S stored in the sterilizing liquid storage tank 710 through the flow of air sucked into the main body 110, . Thus, the propagation of bacteria in the humid condensate collecting cylinder 410 can be reduced. Also, excessive disposal of the sterilizing liquid S can be reduced by spraying the sterilizing liquid S stored in the sterilizing liquid storage tank 710 according to the level of the condensed water C collected in the condensing water collecting container 410.

Although the preferred embodiments of the present invention have been described above, the scope of the present invention is not limited to those described and illustrated above.

For example, although the figure shows that the air inlet pipe valve 520 is provided with the air inlet pipe opening / closing plate 521 that is rotatably coupled to the air inlet pipe 510, The present invention is not limited to this structure. Similarly, although the drawing shows that the injection pipe valve 740 is provided with the injection pipe open / close plate 741 rotatably coupled to the injection pipe 720, the structure of the injection pipe valve can also be changed to another structure .

It is also shown in the drawings that the air inlet pipe valve 520 and the discharge pipe valve 740 are operated simultaneously by a single float 610 but the float for operating the air inlet pipe valve 520 and the float valve 740 may be separately provided. The structure of the float 610 is not limited to that shown in the drawings, and may be variously changed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Those skilled in the art will appreciate that numerous modifications and variations can be made in the present invention without departing from the spirit and scope of the appended claims.

100: main body 101: outside air inlet
102: air inlet port 103: outlet port
110, 120: first and second cabinets 150: air filter
210: Heat Exchanger 220: Main Heat Exchanger Unit
230: preliminary heat exchange unit 240, 260: heat source supply unit
250: correction unit 300: blower
310: blower fan 320: drive motor
410: Condensate collecting box 411: Condensate collecting compartment
420: cover 430: discharge pipe
440, 510: Air inlet pipe 520: Air inlet pipe valve
521: Air inlet pipe opening / closing plate 530: Air inlet pipe rotating shaft
540: Air inlet pipe lever 550: Air inlet pipe stopper
610: Float 620: Guide bar
700: sterilizing liquid supply device 710: sterilization liquid storage tank
715: Connector 720: Dispenser
721: air inlet 722: nozzle
723: throttling portion 730: sterilizing liquid suction pipe
740: Dispenser valve 741: Dispenser opening / closing plate
750: Dispenser rotary shaft 760: Dispenser lever
770: Distributor stopper 780: Accelerator fan

Claims (10)

A main body having an outside air inlet through which outside air flows, an air inlet through which the air used in the room is re-introduced, and a discharge opening through which heat exchanged air is supplied to the room;
An air filter which is introduced into the outside air inlet and the air inlet and filters the mixed air mixed therein;
A main heat exchange unit for cooling the mixed air passing through the air filter;
A correction unit installed downstream of the main heat exchange unit for cooling or heating the heat-exchanged air in the main heat exchange unit to correct the temperature of the air to be supplied to the room;
A blower installed to be connected to the air outlet so as to forcibly discharge air in the main body through the outlet;
A preliminary heat exchange unit installed between the air filter and the main heat exchange unit for precooling or preheating the mixed air in advance;
A condensate collector disposed below the main heat exchange unit and the preliminary heat exchange unit so as to collect condensate generated in the main heat exchange unit and the preliminary heat exchange unit;
A discharge pipe connected to the condensed water collection case for discharging the condensed water collected in the condensed water collection case to the outside; And
And an air inlet pipe connecting the inner space of the main body and the inside of the condensed water collecting container to allow the air sucked into the main body through the air inlet of the main body to flow into the condensed water collecting container,
The inlet of the air inlet tube is located upstream of the correction unit,
Wherein the air inlet pipe is provided with an inlet pipe valve that opens only when a predetermined amount of condensed water or more is filled in the condensed water collecting container to allow air in the main body to flow into the condensed water collecting container. delete delete The method according to claim 1,
Further comprising: a float for floating the condensed water collected in the condensed water collecting cylinder and raising or lowering the condensed water according to the level of the condensed water, thereby operating the air inlet pipe valve. 5. The method of claim 4,
Wherein the air inlet pipe valve is coupled to an air inlet pipe rotary shaft installed through a side wall of the air inlet pipe and is rotatably installed inside the air inlet pipe so as to open and close an internal flow channel of the air inlet pipe, A pipe opening / closing plate,
And an air inflow pipe lever disposed outside the air inflow pipe to be engaged with the rotation shaft of the air inflow pipe and operated by the float. 5. The method of claim 4,
A sterilizing liquid storage tank for storing a sterilizing liquid for sterilizing the inside of the condensed water collecting container;
An air inlet connected to the inner space of the main body so that air sucked into the main body can be introduced through an air inlet of the main body; A spray tube having a nozzle disposed therein; And
The sterilizing liquid stored in the sterilizing liquid storage tank is sucked by the suction force caused by the flow of air passing through the spray tube and is connected to the inside of the sterilizing liquid storage tank at one end so as to be mixed into the air passing through the spray tube, And a sterilizing liquid suction pipe connected to the middle of the spray tube. The method according to claim 6,
Wherein an intermediate portion of the sterilizing liquid suction pipe is connected to the sterilizing liquid suction pipe in the form of a reduced inner flow path width. The method according to claim 6,
Further comprising an acceleration fan rotatably installed inside the spray pipe to increase a flow rate of air flowing along the spray pipe. The method according to claim 6,
Wherein the injection pipe is further provided with an injection pipe valve which is opened by the float to allow air in the main body to pass through the injection pipe when a predetermined amount or more of condensed water is filled in the condensed water collecting container. 10. The method of claim 9,
Wherein the air inlet pipe valve is coupled to an air inlet pipe rotary shaft installed through a side wall of the air inlet pipe and is rotatably installed inside the air inlet pipe so as to open and close an internal flow channel of the air inlet pipe, Wherein the injection pipe valve is rotatably installed inside the injection pipe so as to be able to open and close the internal flow path of the injection pipe by being engaged with the rotation axis of the injection pipe installed through the side wall of the injection pipe A spray gun opening / closing plate,
An air inflow pipe lever disposed outside the air inflow pipe to be engaged with the air inflow pipe rotary shaft and operated by the float;
A spray pipe lever disposed outside the spray pipe to be engaged with the spray pipe rotary shaft and operated by the float; And
Further comprising: a guide bar vertically installed on the inside of the condensed water collecting container so as to be inserted into a through hole provided in the float to guide the float up and down.
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