KR101865332B1

KR101865332B1 - Air Handling Unit Having Integrated Heating Coil Humidifier

Info

Publication number: KR101865332B1
Application number: KR1020170131545A
Authority: KR
Inventors: 송성범
Original assignee: 송성범
Priority date: 2017-03-27
Filing date: 2017-10-11
Publication date: 2018-06-07

Abstract

The present invention relates to a heating coil integrated type humidifier, and more particularly, to an air conditioner having an air inlet, an air outlet, and a flow path communicating the air inlet and the air outlet. An air blower installed on the flow passage for sucking air into the air inlet and discharging air to the air outlet; A heating coil having a hot water inlet and a hot water outlet formed thereon; A boiler connected by the hot water inlet and a supply pipe and connected by the hot water outlet and the recovery pipe to supply hot water to the supply pipe by heating the cold water recovered by the recovery pipe; A branch pipe one end of which is connected to the supply pipe; A spray device connected to the other end of the branch pipe to spray hot water supplied from the branch pipe onto the flow path; And a decompressor coupled to the branch pipe for reducing the pressure of hot water introduced into the branch pipe and supplying the reduced pressure to the spray device. Therefore, the boiler provided in the air conditioner is utilized without using a complicated structure such as a heating device for separate humidification, so that humidification can be effectively performed.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an air conditioning unit having a heating coil integral type humidifier,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner, and more particularly, to an air conditioner having a humidifier capable of heating and simultaneously humidifying a room.

The air conditioner is a general term for a mechanical device used for the purpose of maintaining conditions such as temperature, humidity, airflow, bacteria, dust, smell, noxious gas, etc. in an indoor environment or a person or an article in an optimal environment.

Such a conventional air conditioner can selectively use cooling and heating according to the seasons. When it is desired to perform cooling, a refrigerant system is operated to heat exchange the air in the room with cold refrigerant to lower the temperature of air in the room, If you want to heat the air, heat the air to the hot air and heat the room.

However, the air conditioner as described above can raise or lower the temperature of the air, but it can not convert the dry air into the humid air. Especially, when heating is performed to raise the indoor temperature in winter, air can become too dry and cause diseases such as bronchitis. If the humidity in the computer room, power room, machine room, production and testing facilities is not maintained Dust or the like adheres due to the static electricity generated when the electronic device operates, and malfunctions such as overheating and overload are generated.

To solve this problem, an air conditioner having a humidifier has been developed. The air conditioner equipped with a humidifier includes a heating coil for heating and a humidifier to convert the dry air into humid air and discharge it to the room. Therefore, the air in the room is not dried, and it can always create a comfortable environment including moisture.

Humidifiers used in conventional air conditioners include water injection type, steam type and evaporative type.

The water injection type is to vaporize water directly by spraying water in the form of liquid particles, and the steam type is to make steam and absorb it into the air. The vaporization type is to evaporate water by making contact area with air.

However, the conventionally known humidifier used in the air conditioner requires a separate humidifying boiler and a humidifying pipe, which takes up a lot of space and has a disadvantage of high installation cost.

1. Korea Registered Utility Model No. 0403658 (Published Dec. 06, 2005) 2. Korean Registered Patent Publication No. 0787543 (published Dec. 13, 2007) 3. Korean Patent Registration No. 0924960 (disclosed on October 28, 2009) 4. Korean Patent Publication No. 2012-0075992 (published on 07. 09, 2012)

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide an air conditioner having a heating coil integrated type humidifier which can save installation cost and space and maintain a suitable humidity in a room.

An embodiment of the present invention provides an air conditioner case having an air inlet, an air outlet, and a flow path communicating the air inlet and the air outlet, An air blower installed on the flow passage for sucking air into the air inlet and discharging air to the air outlet; A heating coil having a hot water inlet and a hot water outlet formed thereon; A boiler connected by the hot water inlet and a supply pipe and connected by the hot water outlet and the recovery pipe to supply hot water to the supply pipe by heating the cold water recovered by the recovery pipe; A branch pipe one end of which is connected to the supply pipe; A spray device connected to the other end of the branch pipe to spray hot water supplied from the branch pipe onto the flow path; And a decompressor coupled to the branch pipe for reducing the pressure of the hot water introduced into the branch pipe and supplying the reduced pressure to the spray device. [3] The air conditioner of claim 1,

The spray device further includes a drain plate disposed on the air inlet side of the heating coil and disposed in a lower portion of the spray device and in a lower portion of the heating coil, It is preferable that a drain hole for draining water is formed to pass through.

It is also effective that the drain plate is further extended from the heating coil toward the air outlet.

On the other hand, the blower is disposed on the side of the air discharge port based on the heating coil, the spray device is disposed between the heating coil and the blower, and the eliminator is installed in the flow path between the spray device and the blower; And a drain plate disposed in the flow path across a lower portion of the spray device and the lower portion of the eliminator, and a drain hole for draining the drain water may be formed in the drain plate.

And a water treatment apparatus installed in the branch pipe for removing impurities contained in the hot water flowing into the branch pipe.

It is effective that an air mixing part is formed between the spray device and the blower so that the hot water powder sprayed from the spray device and the air can be mixed.

It is more effective that the spray device spray hot water toward the upper side of the side surface of the heating coil.

The spray device includes a spray device frame installed at a position adjacent to the heating coil; A humidifying pipe rotatably installed in the spray device frame and communicating with the branch pipe; And a driving unit for driving the humidifying pipe to rotate repeatedly within a predetermined angle, wherein a plurality of spray nozzles are installed in the humidifying pipe.

The spray nozzle is installed to face the air inlet side.

Wherein the spray device comprises: a cleaning pipe rotatably installed in the spray device frame and communicating with the branch pipe; A cleaning pipe opening / closing valve for opening / closing the communication between the branch pipe and the cleaning pipe; And a plurality of cleaning nozzles provided in the longitudinal direction of the cleaning pipe, wherein the driving unit simultaneously drives the humidifying pipe and the cleaning pipe, the cleaning nozzle is installed to face the heating coil, And the cleaning nozzle is formed to discharge hot water of a higher pressure than the spray nozzle.

And an evaporator installed on the opposite side of the spraying unit of the heating coil.

The evaporator is preferably provided with a plurality of plate-shaped evaporation plates spaced apart, and the evaporation plate is preferably provided with unevenness.

As described above, according to the present invention, various effects including the following can be expected. However, the present invention does not necessarily achieve the following effects.

First, the heating coil integrated type humidifier of the embodiment of the present invention advantageously utilizes a boiler provided in the air conditioner without using a complicated structure such as a heating device for separate humidification, so that humidification can be effectively performed.

That is, since the heating device for humidification uses hot water for heating or steam, there is an advantage that a separate energy source for humidification is unnecessary.

Further, the humidifying pipe can be rotated within a certain angle, thereby further increasing the humidifying efficiency.

Further, since the cleaning nozzle is provided, foreign matter such as fine dust adhered to the heating coil can be removed.

1 is a conceptual diagram showing the entire configuration of a heating coil integrated humidifier according to the first embodiment of the present invention;
Fig. 2 is an enlarged view of the air conditioner case of Fig. 1
Figure 3 is an enlarged view of the spray device of Figure 2;
4 and 5 illustrate a second embodiment of the present invention with a heating coil integral type humidifier,
4 is a conceptual diagram showing the overall configuration of a heating coil integrated type humidifier
Fig. 5 is an enlarged view of the spray device of Fig. 4
FIG. 6 is a perspective view of a vicinity of a sprayer of a third embodiment of the present invention; FIG. 7 is a perspective view of the spray device of FIG. 6;
Figs. 8 and 9 are conceptual diagrams sequentially showing the operation of the cam device of Fig. 7
FIG. 10 is a perspective view of the evaporator of FIG. 6, and FIG. 11 is an enlarged view of the XI portion of FIG.
12 to 14 are variations for verifying the effect of the arrangement of the spray nozzles,
12 is a conceptual diagram showing Experimental Example 1 in which eight nozzles are arranged on the upper side with respect to the center in the height direction
13 is a conceptual diagram showing Experimental Example 2 in which twelve nozzles are uniformly arranged in the entire region
14 is a conceptual diagram showing Experimental Example 3 in which thirteen nozzles are arranged closely on the upper side

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.

Fig. 1 is a conceptual diagram showing the entire configuration of a heating coil integrated type humidifier according to the first embodiment of the present invention. Fig.

1, the heating coil integrated humidifier according to the first embodiment of the present invention includes an air inlet 110, an air outlet 120, and an air outlet 110 communicating with the air outlet 120, An air blower case 100 installed on the air passage 130 for blowing air into the air inlet 110 and discharging air to the air outlet 120; The heating coil 300 is installed on the flow path 130 and the hot water inlet 301 and the hot water outlet 302 are formed by the hot water inlet 301 and the supply pipe 410 A boiler 400 connected to the hot water outlet 302 and the recovery pipe 420 for heating the cold water recovered by the recovery pipe 420 to supply hot water to the supply pipe 410, A branch pipe 500 having one end connected to the supply pipe 410 and a branch pipe 500 connected to the other end of the branch pipe 500 A spray device 700 installed in the flow path 130 for spraying the hot water supplied from the branch pipe 500 onto the flow path 130 and a spray device 700 connected to the branch pipe 500, And a pressure reducer 610 for reducing the pressure of the hot water introduced into the sprayer.

Fig. 2 is an enlarged view of the air conditioner case of Fig. 1, and Fig. 3 is an enlarged view of the spray device of Fig.

As shown in FIG. 2, the air conditioner case 100 has air inlet ports 110 and air outlet ports 120 formed at both ends thereof, and is formed so as to surround the air flow path 130 connecting the air inlet port 110 and the air outlet port 120. 2, an air inlet 110 is formed on the left side, and an air outlet 120 is formed on the right side. The air inlet 110 includes an outdoor air inlet 111 through which outdoor air flows and an indoor air inlet 112 through which indoor air flows. The air outlet 120 communicates with the room so that the indoor and outdoor air introduced by the air conditioner can be humidified and heat-exchanged and supplied to the room.

Devices for heat exchange and humidification are arranged in the flow path 130. That is, in the first embodiment of the present invention, the air filter 170, the heating coil 300, the spray device 700, the eliminator 140, and the air filter 170 are sequentially directed from the air inlet 110 to the air outlet 120. [ And a drain plate 150 is installed on the lower portion of the spray apparatus 700 and the lower portion of the eliminator 140. The drain plate 150 is installed on the bottom of the spray apparatus 700,

That is, the blower 200 is disposed on the side of the air outlet 120 on the basis of the heating coil 300, and the spray device 700 is disposed between the heating coil 300 and the blower 200 And an eliminator 140 is installed in the flow path 130 between the spray device 700 and the blower 200.

The drain plate 150 is disposed in the flow path between the lower portion of the spray device 700 and the lower portion of the eliminator 140 and the drain plate 150 is formed with a drain hole 151 through which the drain water is drained . The drain plate 150 collects the spray water sprayed from the spray device 700 and the water falling from the eliminator 140 and drains the water through the drain hole 151. However, since the heating coil 300 may leak water or cause condensation on the surface of the heating coil 300, it is more preferable that the drain plate 150 extends to the lower portion of the heating coil.

An air mixing part 160 is formed in the flow path 130 between the spray device 700 and the blower 200 so that hot water powder sprayed from the spray device 700 can be mixed with air . The air mixing unit 160 is formed of a space having a predetermined length or more on the flow path 130. It is preferable that the air mixing unit 160 is formed to have a length of about 2 to 3 m so that the hot water powder and air can be mixed well.

The air filter 170 serves to filter out foreign substances from the air flowing in the room and outside, and a generally known air filter can be used.

As described above, the heating coil 300 has the hot water inlet 301 and the hot water outlet 302. The hot water introduced from the hot water inlet 301 flows through a separate heat exchange channel So that heat exchange occurs through contact with air passing through the flow path 310. Exchanged cold water is discharged through the hot water outlet 302. Heating coils can also be used with known heating coils.

3, the spray device 700 includes a humidifier pipe 710 connected to the branch pipe 500, a plurality of valves 720 provided at predetermined intervals in the humidifier pipe, And a spray nozzle 730 for spraying water. The spray nozzle 730 is formed so that the angle range and direction to be sprayed are adjusted.

The eliminator 140 is supplied with the water droplets sprayed from the spray device 700 to the air blowing device 200 to cause a failure or to flow into the room through the air discharge hole 120, . Since the specific configuration of the eliminator is generally known, detailed description is omitted.

The blower 200 includes a fan 210 and a motor 220 for rotating the fan 210.

The boiler 400 may be an electric, heated, and various types of boilers. The boiler 400 heats the cold water of about 55 degrees Celsius, which is introduced into the recovery pipe 420, into the hot water of about 60 degrees Celsius, and supplies it to the supply pipe 410.

The branch pipe 500 branches from the supply pipe 410 and is connected to the supply pipe 410 at one end and to the spray device 700 at the other end. The branch piping 500 is provided with the pressure reducer 610 described above and a water filter device 620 for filtering impurities contained in the hot water flowing into the branch piping 500, Pressure sensors 631 and 632, respectively.

The decompressor 610 is a device for decompressing the introduced hot water, and a general decompressor is used. The reason why the pressure reducer is used is that when the pressure of the hot water flowing into the heating coil is directly supplied to the spray device 700, the spray device does not operate normally. Therefore, the pressure is reduced by using the pressure reducer 610, and then supplied to the spray device.

The water filter device 620 includes a strainer 621 for filtering impurities of a large size and a water filter 622 for filtering fine impurities.

The pressure sensors 631 and 632 are provided before and after the pressure reducer 610 to indicate whether the pressure is appropriately reduced.

Hereinafter, the operation of the heating coil integral type humidifier of the first embodiment of the present invention will be described.

When the blower 200 is operated, outdoor air and room air are mixed through the air inlet 110 and flow into the flow path 130. The filter 170 installed in the flow path 130, the heating coil 300, Is discharged to the discharge port (120) through the discharge port (700) and flows into the room. At this time, foreign substances are removed while passing through the filter 170, heated while passing through the heating coil 300, humidified through the spray device 700, and then introduced into the room.

The hot water in the heating coil 300 is heat-exchanged with the air flowing in the channel and is supplied to the boiler 400 through the recovery pipe 420. The hot water heated in the boiler 400 is supplied to the heating coil 300 ).

Hot water is also supplied to the branch pipe 500 branched from the supply pipe 410. The hot water supplied to the branch pipe 500 is removed while passing through the water filter device 620 and the decompressor 610 The pressure is reduced and transmitted to the spray device 700 at a pressure suitable for the spray device.

The spray device 700 sprayes hot water. The sprayed hot water is vaporized and humidified by the air flowing in the flow path, and the non-vaporized water powder hits the eliminator 140 and is collected and discharged to the drain plate 150.

As described above, the heating coil integrated type humidifier of the first embodiment of the present invention has an advantage that humidification can be effectively performed without using a complicated structure such as a heating device for separate humidification.

Fig. 4 and Fig. 5 show a second embodiment of the present invention with a heating coil integrated humidifier, Fig. 4 is a conceptual view showing the entire configuration of a heating coil integrated humidifier, and Fig. 5 is an enlarged view of the spraying apparatus of Fig. 4 .

The heating coil integrated type humidifier of the second embodiment differs from the first embodiment in the location of the heating coil integral type humidifier and the spray device, the shape of the drain plate, and the presence or absence of the eliminator. The same reference numbers are used for the drawings, and a description thereof will be omitted.

The heating coil integrated humidifier of the second embodiment is characterized in that the blower 200 is disposed on the side of the air outlet 120 on the basis of the heating coil 300 and the spray device 700 is disposed on the side of the air inlet 110 And a drain plate 1150 disposed at the lower portion of the spray device 700 and the lower portion of the heating coil 300 in the flow path 130. [

The drain plate 1150 is formed with a drain hole 1151 for draining the drain water and the drain plate 1150 is further extended from the heating coil 300 toward the air outlet 1120. 5)

The heating coil integrated type humidifier according to the second embodiment is configured such that the spray coil 700 is positioned at the front end of the heating coil 300 so that the heating coil 300 can function as an eliminator, There is no need to install an eliminator of the above. As a result, not only the structure is simplified, but also the blowing resistance is reduced, and the overall power consumption can be reduced. Further, the water droplet impinging on the heating coil 300 is evaporated by the temperature of the heating coil 300, so that the humidifying effect can be further increased.

FIG. 6 is a perspective view of a vicinity of a sprayer of a third embodiment of the present invention; FIG. 7 is a perspective view of the spray device of FIG. 6;

6, the spray apparatus 1700 of the third embodiment includes a spray apparatus frame 1760 provided at a position adjacent to the heating coil 300, and a spray apparatus frame 1760 rotatably mounted on the spray apparatus frame 1760 A humidifying pipe 1710 connected to the branch pipe 500 and a driving unit 1770 for driving the humidifying pipe to rotate repeatedly within a predetermined angle. The spray device 1700 includes a cleaning pipe 1781 rotatably installed in the spray device frame 1760 and communicating with the branch pipe 500, And a plurality of cleaning nozzles 1782 disposed in the longitudinal direction of the cleaning pipe 1781. The driving unit 1770 is connected to the humidifying pipe 1781 1710 and the cleaning pipe 1781 at the same time.

The sprayer frame 1760 is formed as a rectangular frame and is installed adjacent to the heating coil 300. And a connection pipe 500 is installed across the lower part. A humidifying pipe 1710 and a cleaning pipe 1781, which will be described later, are installed on the upper side.

The connecting pipe 500 includes a humidifying pipe connecting branch pipe 501 having one end connected to the supply pipe 410 and the other end branched to be connected to the humidifying pipe 1710, And the washing pipe connecting branch pipe 502 connected to the washing pipe connecting branch pipe 502 is formed.

The humidifying pipe connecting branch pipe 501 is provided with a humidifying pipe opening and closing valve 1720 for opening and closing the humidifying pipe connecting branch pipe 501. The washing pipe connecting branch pipe 502 is opened and closed A cleaning pipe opening / closing valve 1721 is provided. The humidifying pipe opening / closing valve 1720 and the washing pipe opening / closing valve 1721 may be provided with manual valves or electric valves which can be opened and closed electrically.

The humidifying pipe connecting branch pipe 501 and the humidifying pipe 1710 are connected through a humidifying pipe connecting hose 1740 and the washing pipe connecting pipe 502 and the washing pipe 1781 are connected to the washing pipe connecting hose 1741 Lt; / RTI > The humidifying pipe connecting hose 1740 and the washing pipe connecting hose 1741 are made of a flexible hose so that the humidifying pipe and the washing pipe are not damaged even if they reciprocate in a certain section.

A plurality of spray nozzles 1730 are installed in the humidifying pipe 1710. The spray nozzle 1730 is installed to face the air inlet side. That is, facing the opposite side of the heating coil 300.

The cleaning pipe 1781 is provided with a plurality of cleaning nozzles 1782, and the cleaning nozzle 1782 is installed to face the heating coil 300. The cleaning nozzle 1782 is formed to discharge hot water at a higher pressure than the spray nozzle 1730. That is, the spray nozzle 1730 is for forming a mist, and is formed so as to form fine hot water powder. The washing nozzle 1782 is also formed by discharging high-pressure hot water to clean the heating coil 300. Since the shapes of the nozzles for forming the mist or discharging the high-pressure fluid are generally well known, detailed description thereof will be omitted.

The driving unit 1770 includes a driving motor 1771 and a cam device 1772 for repeatedly rotating the washing pipe 1781 and the humidifying pipe 1710 within a predetermined angle by using the rotational force of the driving motor 1771. [ ).

The cam device 1772 includes a first cam plate 1773 connected to the driving motor 1771 and rotated, a second cam plate 1774 fixed to one end of the humidifying pipe 1710, A first link 1776 hinged to the eccentric position of the first cam plate 1773 at one end and hinged at the eccentric position of the second cam plate 1774 at the other end, And a second link 1777, one end of which is hinged to the first cam plate and the first link 1776 at the same time and the other end is hinged to the eccentric position of the third cam plate 1775. [

8 and 9, when the drive motor 1771 rotates, the cleaning device 1781 and the humidifying pipe 1710 are moved by the cam device 1772 to a predetermined angle (R).

An evaporator 1800 is installed on the side of the heating coil 300 opposite to the spray device 1700.

FIG. 10 is a perspective view of the evaporator of FIG. 6, and FIG. 11 is an enlarged view of the XI portion of FIG.

The evaporator 1800 is provided with a plurality of plate-like evaporation plates 1830 spaced therefrom.

The evaporator 1800 includes a quadrangular evaporator frame 1810, a fixing rod 1820 installed across the evaporator frame 1810, a evaporation plate 1830 fitted to the fixing rod 1820 at regular intervals, . The evaporation plate 1830 has concave and convex portions 1831 formed thereon. Preferably, a plurality of pores are formed, and an outer circumferential surface of the pore is protruded from the evaporation plate 1830 to form concave and convex portions 1831. The evaporation plate 1830 is preferably hydrophilic coated.

The evaporator 1800 is for evaporating as much as possible from the steam that has passed through the heating coil 300. The evaporator 1800 is provided with concave and convex portions 1831 and pores on the air flow path to maximize the area .

The operation and effect of the heating coil integral type humidifier according to the third embodiment of the present invention will be described below.

Since most of the operation principles are the same as those of the first and second embodiments, only different configurations are described.

First, for humidification, the humidifying pipe opening / closing valve 1720 is opened and the washing pipe opening / closing valve 1721 is closed. As a result, hot water is sprayed through the spray nozzle 1730, and the sprayed hot water powder is sprayed to the heating coil 300 by the wind. At this time, the hot water powder is evaporated by the temperature of the heating coil 300, and is introduced into the room in the form of water vapor to be humidified. The unheated hot water powder is further evaporated by the evaporator 1800, which can further enhance the humidifying effect.

At this time, the humidifier pipe is rotated by a driving unit 1770 within a certain angle, and as a result, hot water powder is uniformly sprayed to the heating coil 300.

Foreign materials such as dust adhere to the heating coil 300 during long-term use. At this time, the humidifying pipe opening / closing valve 1720 is closed and the washing pipe opening / closing valve 1721 is opened. In this case, hot water is sprayed toward the heating coil 300 through the washing pipe at a high pressure, and the heating coil 300 can be cleaned. At this time, the cleaning tube is rotated within a predetermined angle by the driving unit 1770, and as a result, the heating coil 300 can be cleaned every corner.

Hereinafter, the humidifying effect for each embodiment will be described.

First, as in the first embodiment, it was confirmed that the humidifying efficiency was about 17% when the humidifying device was disposed on the rear end of the heating coil 300, that is, on the blower side. That is, when the hot water of 40 degrees was supplied through the humidifier at a rate of 96 kg / h, the water vapor of 16 kg / h was humidified.

On the other hand, as in the second and third embodiments, it was confirmed that the humidifying efficiency was 23% when the humidifying device was disposed on the front end of the heating coil 300. [ That is, when hot water of 40 degrees Celsius was supplied through a humidifier at a rate of 96 kg / h under the same conditions, 27 kg / h of water vapor was humidified. Therefore, it was confirmed that the arrangement of the humidifying device on the front end of the heating coil 300 is superior to that of the rear heating humidifier.

For reference, even when the humidifying device is simultaneously operated on the front and rear ends of the heating coil 300, the humidifying efficiency is only about 20%, and it is found that the humidifying device is most effectively disposed at the front end.

12 to 14 are modifications for verifying the effect of the arrangement of the spray nozzles.

12 is a conceptual diagram showing Experimental Example 1 in which eight nozzles are arranged on the upper side with respect to the center in the height direction, FIG. 14 is a conceptual diagram showing Experimental Example 2 in which 12 nozzles are evenly distributed over the entire region, Is a conceptual view showing Experimental Example 3 in which thirteen nozzles are arranged closely on the upper side.

Table 1 below shows the results of measuring the humidifying efficiency of the water samples in Experimental Examples 1 to 3 at a temperature outside the room of 31.9 ° C., a humidity of 60.8% and a water pressure of 4 bar at a temperature of 40 ° C. to 50 ° C.

40 degrees 45 degrees 50 degrees Experimental Example 1 28% 28% 29% Experimental Example 2 23% 28% 29% Experimental Example 3 29% 32% 36%

As can be seen from the above experimental results, it can be seen that the humidifying efficiency is better or equal than the experimental example 2, even though the nozzle is 2/3 in comparison with the experimental example 2. [ In addition, it can be seen that the humidification efficiency is remarkably excellent in Experimental Example 3 as compared with Experimental Example 2, even though only one nozzle is added. As a result, it can be confirmed that the more the spray nozzle is distributed on the upper side, the better the humidification efficiency.

Also, it can be confirmed that the higher the temperature of the hot water, the better the humidification efficiency.

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 embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

110: air inlet 120: air outlet
130: Euro 100: Air conditioner case
200: blower 301: hot water inlet
302: hot water outlet 300: heating coil
410: feed pipe 420: return pipe
400: Boiler 500: Branch piping
700: Spraying device 610: Pressure reducing device

Claims

delete

An air inlet port, an air outlet port, and an air flow path communicating the air inlet port and the air outlet port are formed;
An air blower installed on the flow passage for sucking air into the air inlet and discharging air to the air outlet;
A heating coil having a hot water inlet and a hot water outlet formed thereon;
A boiler connected by the hot water inlet and a supply pipe and connected by the hot water outlet and the recovery pipe to supply hot water to the supply pipe by heating the cold water recovered by the recovery pipe;
A branch pipe one end of which is connected to the supply pipe;
A spray device connected to the other end of the branch pipe to spray hot water supplied from the branch pipe onto the flow path; And
A decompressor coupled to the branch pipe for reducing the pressure of hot water introduced into the branch pipe and supplying the reduced pressure to the spray device;
Lt; / RTI >
The spray device is disposed on the air inlet side with respect to the heating coil,
A drain plate disposed in the flow path over a lower portion of the spray device and a lower portion of the heating coil;
Further comprising:
Wherein the drain plate is formed with a drain hole for discharging drain water,
The spray device spray hot water toward an upper portion of a side surface of the heating coil,
A spray device frame installed adjacent to the heating coil;
A humidifying pipe rotatably installed in the spray device frame and communicating with the branch pipe; And
A driving unit for driving the humidifying pipe to rotate repeatedly within a predetermined angle;
Lt; / RTI >
Wherein a plurality of spray nozzles are installed in the humidifying pipe.

9. The method of claim 8,
Wherein the spray nozzle is installed to face the air inlet side.

9. The method of claim 8,
The spray device includes:
A cleaning pipe rotatably installed in the spray device frame and communicating with the branch pipe;
A cleaning pipe opening / closing valve for opening / closing the communication between the branch pipe and the cleaning pipe; And
A plurality of cleaning nozzles provided in the longitudinal direction of the cleaning tube;
Further comprising:
Wherein the driving unit simultaneously drives the humidifying pipe and the washing pipe,
Wherein the cleaning nozzle is installed to face the heating coil,
Wherein the spray nozzle is installed to face the air inlet side,
Wherein the cleaning nozzle is formed to discharge hot water at a higher pressure than the spray nozzle.

11. The method according to any one of claims 8 to 10,
An evaporator installed on the side of the heating coil opposite to the spray device;
Further comprising a heating coil for heating the heating coil.

12. The method of claim 11,
Wherein the evaporator comprises:
Wherein a plurality of plate-shaped evaporation plates are disposed with an interval therebetween.

13. The method of claim 12,
Wherein the evaporation plate has a concavo-convex shape.