KR101380124B1 - Air supplying apparatus using outdoor air for constant temperature and humidity system - Google Patents

Abstract

The present invention relates to an apparatus to supply air for an air conditioning and, more specifically, to an apparatus to supply air for an air conditioning which either supplies outside air or circulates the inside air to at least one air conditioner, such as a thermo-hygrostat or a fan coil unit which constantly maintains the interior temperature and moisture. According to the present invention, based on the enthalpy of the outside or inside air, an inside air damper or an outside air damper is automatically ratio-controlled by a controller to supply air; especially when cooling during spring, fall, or winter where energy consumption can be reduced using the air outside.

Description

Air supply for air conditioning {AIR SUPPLYING APPARATUS USING OUTDOOR AIR FOR CONSTANT TEMPERATURE AND HUMIDITY SYSTEM}

The present invention relates to an air-conditioning air supply device, and more particularly, to circulating or supplying indoor air to at least one air conditioner, such as a thermo-hygrostat or a fan coil unit that maintains the indoor temperature / humidity in a set state. It relates to an air supply unit for air conditioning to supply.

In general, the places where computer equipment is installed, such as the computer room, should maintain the internal temperature and humidity in a constant state to prevent overheating of the computer equipment.

Accordingly, an air conditioner such as a constant temperature and humidity chamber is installed in a room where a computer room or other precision equipment is installed to maintain a uniform temperature / humidity of the room.

Such an air conditioner is an air intake air conditioner having a constant temperature and humidity function proposed in Republic of Korea Patent Publication No. 10-0937928.

The prior art is composed of an indoor unit 60 that serves to expand and evaporate as shown in FIG. 1, an outdoor unit 80 that serves to compress and condense, and a damper 80 that introduces external air according to the outdoor temperature. .

This prior art is configured to heat or cool the air through the electric heater 67 or the evaporator 64 while discharging air through the operation of the blower 63, and to discharge moisture through the operation of the humidifier 68.

By the way, the prior art as described above is configured to improve the efficiency of heating and cooling by introducing the outdoor air into the indoor unit 60 according to the external temperature by configuring the indoor unit 60 and the outdoor unit 80 in a removable manner, It is not possible to distribute external air.

In addition, the prior art has a drawback of the large energy consumption due to the cooling or humidification of the external air as the incoming external air is introduced into a room temperature state.

Republic of Korea Patent Publication No. 10-0937928

The present invention was created to improve the problems of the prior art as described above, the air conditioning that can reduce the energy by utilizing the enthalpy of outdoor air while recycling or supplying the indoor air to the at least one air conditioner to supply the outdoor air. One purpose is to provide an air supply for the vehicle.

In addition, another object of the present invention is to provide an air supply apparatus for air conditioning having a structure in which a damper for adjusting a flow rate of an intake line can increase a flow rate of air.

In addition, another object of the present invention is to provide an air supply device for air conditioning that can supply pre-cooling and pre-humidification while simultaneously cleaning outdoor air introduced into the filtering unit.

Air-conditioning air supply device according to the present invention for achieving the above object, the indoor air is circulated or supplied to at least one air conditioner installed in the room to control the temperature and humidity of the room to the set temperature / humidity or outdoor air An air supply unit for supplying air, comprising: a filtering unit configured to filter foreign substances in the air introduced while shielding the outdoor air into the air; One end is communicably connected to the filtering unit, and the other end is communicatively connected to the respective air conditioners while forming a manifold shape to distribute outdoor air, and an air damper for returning indoor air to the air conditioner is provided. Intake lines in the form of ducts; An external air damper for controlling the flow rate of the outdoor air while shielding the intake line to be openable and closed respectively; Sensing member for sensing the temperature / humidity of outdoor air and indoor air; And a damper controller for controlling opening and closing of the internal damper or the external air damper, wherein the damper controller detects enthalpy of indoor air and outdoor air, respectively, and detects the detected enthalpy through the data sensed by the sensing member. Proportional control of the opening and closing rate of the internal damper and the external air damper on the basis of.

For example, the external air damper may include an opening / closing door installed in the intake line so as to be opened and closed; And a driving member which opens and closes the opening / closing door while providing a driving force under the control of the damper controller, wherein the opening / closing door is formed by the driving member while the cross-sectional area is narrowed in the air moving direction of the intake line. It is characterized in that the opening and closing.

For example, the opening and closing door is connected to the driving member with one end hinged to the upper end of the intake line so that the other end pivots about the one end, and the other end is inclined in the air moving direction. A first door; One end is hinged to the lower end of the intake line while forming a symmetrical state with the first door, and the other end is pivotally rotated about the one end by the driving member to be closed while being in close contact with the other end of the first door. 2 doors; And a door link connecting the first door and the second door to the driving member and interlocking the first door and the second door according to the driving of the driving member.

For example, the driving member may be configured as a driving motor or an actuator connected to the door link and operating by the damper controller to move the door link forward and backward.

In addition, the door link has a long hole which is connected to the other end of the first door and the second door in a rotatable state, respectively, on both sides thereof, and is moved in the longitudinal direction of the intake line by the driving member. And opening and closing the first door and the second door while moving the other end of the first door and the second door along the long hole.

The present invention may further include a pre-cooling / cleaning unit installed between the filtering unit and the intake line and pre-cooling and pre-humidifying the air while cleaning the outdoor air by spraying water on the outdoor air introduced into the filtering unit. Can be configured.

For example, the pre-cooling / washing unit, the pre-cooling chamber is installed in a state in which the filtering unit is in communication with one side, the intake line is communicably connected to the other side to accommodate the outdoor air introduced into the filtering unit; A fine spray nozzle installed in the precooling chamber and spraying water into the receiving space of the precooling chamber in an atomized state; It may be configured to include; and a drain for discharging the moisture collected to the lower portion of the precooling chamber to the outside.

The present invention may further include an air inlet blower provided in the intake line and operated by the damper controller to provide a vacuum negative pressure to the intake line to introduce outdoor air into the filtering unit.

According to the air-conditioning air supply apparatus according to the present invention,

Based on the enthalpy (heat content) of outdoor air or indoor air, the external air damper and internal air damper are automatically proportionally controlled by the controller to supply air, so that outdoor air is cooled during the spring, autumn, and winter seasons except summer. It can reduce energy consumption by cooling the room.

Moreover, since the water provided from the pre-cooling / cleaning unit is injected into the outdoor air introduced into the filtering unit, the energy consumption of the thermo-hygrostat can be further reduced as the outdoor air is pre-cooled and pre-humidified. As the foreign substances and harmful substances of the gas are cleaned, it is possible to supply high quality external air to the air conditioner.

Specifically, as the precooling / cleaning unit is composed of a precooling chamber, a fine spray nozzle, and a drain, precooling / humidification and cleaning can be performed through the fine spray nozzle while the external air is accommodated in the precooling chamber. Together with the drain can be discharged.

In addition, since the opening and closing door constituting the outdoor air damper is configured in such a way that the cross-sectional area is narrowed in the direction of movement of the air, the air flow rate is increased, so that the air flow in the intake line can be smoothly communicated.

In particular, since the opening and closing door is composed of the first door and the second door which is inclined in a symmetrical state, an effect of increasing the air flow rate and preventing the backflow of the air can also be expected.

In addition, as the first door and the second door are connected to the driving member through the door link, the first door and the second door may be interlocked in a symmetrical state only by operation of one driving member.

1 is a perspective view showing the prior art.
Figure 2 is a block diagram showing the overall configuration of the air supply for air conditioning according to the invention.
Figure 3 is a longitudinal sectional view showing a pre-cooling / cleaning unit of the present invention.
4 is a longitudinal sectional view showing the damper of the present invention.
5 is a longitudinal sectional view showing a closed state of the damper shown in FIG.
Figure 6 is an exploded perspective view showing a sterilization unit of the present invention.
7 is a cross-sectional view showing a sterilization unit shown in FIG.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted.

The air conditioning apparatus 200 according to the present invention supplies outdoor air or circulates indoor air to at least one air conditioner 100 that controls temperature and humidity in a state of being installed indoors as shown in FIG. 2. By supplying, the filter 210, the intake line 220, the external air damper 250, the sensing member 230 and the damper controller 240 may be configured.

The filtering unit 210 is a member for introducing outdoor air while filtering foreign matters in the outdoor air.

The filtering unit 210 is installed in the pre-cooling / cleaning unit 260 to be described later, as shown in Figure 2 to filter the foreign matter introduced with the outdoor air.

The filtering unit 210 may be formed of, for example, a medium and a prefilter, and inserted into a filter slot 261a provided in the precooling chamber 261 constituting the precooling / cleaning unit 260 as shown in FIG. 3. Can be installed in a removable state.

The intake line 220 provides a flow path for the outdoor air filtered by the filtering unit 210 to the inlet of the air conditioner 100 or provides a flow path for the indoor air to return to the air conditioner 100. Element.

The intake line 220 is configured in the form of a duct as shown in Figure 2 is connected to the filtering unit 210 through the pre-cooling / washing unit 260, one end is described later, the other end is an air conditioner (100) In the manifold form according to the number of) is respectively connected to the inlet of the air conditioner (100).

Here, the intake line 220 is provided with each of the outdoor air damper 250 to be described later to control the inflow of outdoor air, and the inflow of indoor air is intermittent as the internal air damper 221 is provided to communicate with the indoor space.

The bet damper 221 controls the communication of indoor air while operating under the control of the damper controller 240 to be described later.

The bet damper 221 is, for example, a communication window (not shown) formed in the intake line 220, a plurality of blades installed in a rotatable state in the communication window to open and close the communication window through the rotation, damper controller 240 It can be composed of a drive motor or actuator to rotate a plurality of blades while operating by.

On the contrary, the internal damper 221 may be configured in the same manner as the external air damper 250 to be described later or may be configured as a conventional electric damper.

On the other hand, the intake line 220 introduces outdoor air through the vacuum negative pressure generated by the operation of the air conditioner 100.

Alternatively, the intake line 220 may be provided with a separate blower 270, as shown in Figure 2 may be provided with a vacuum negative pressure.

The blower 270 operates by the damper controller 240 to be described later to provide a vacuum negative pressure to the intake line 220 and the filtering unit 210 to forcibly suck the outdoor air.

Such a blower 270 may be generally applied to a configuration known in the art.

Here, the blower 270 may be provided with an accumulator (not shown) so that moisture is not introduced by the pre-cooling / cleaning unit 260 which will be described later.

The outside air damper 250 is installed in the intake line 220 as shown in Figure 2 is a component that controls the flow rate of the outdoor air while opening and closing the intake line 220.

The external air damper 250 may include, for example, an opening / closing door 251 and a driving member 252 as shown in FIG. 4.

Opening and closing door 251 is installed in the openable state inside the intake line 220 as shown in Figures 4 and 5, open as shown in Figure 4 to communicate outdoor air or shown in Figure 5 As it is closed, it blocks the inflow of outdoor air.

Here, the opening and closing door 251 is configured as the first door 251a and the second door 251b as shown in Figure 4 to form a narrow cross-sectional area in the movement direction of the air to increase the flow rate of air Can be.

That is, the outdoor air moving to the intake line 220 is increased between the first door (251a) and the second door (251b) as the cross-sectional area is narrowed by the Bernoulli principle, the flow rate is smoothly Is supplied to the air conditioner 100.

Specifically, the opening and closing door 251 is composed of the first door 251a, the second door 251b and the door link 253 is opened and closed by the drive member 252 to be described later.

As shown in FIG. 4, one end of the first door 251a is pivotally coupled to the upper end of the intake line 220 so that the other end pivots around the one end and is inclined in the air moving direction. As a result, the cross-sectional area of the intake line 220 is opened in a narrowing form.

As shown in FIG. 4, the second door 251b is hinged to the lower end of the intake line 220 in a symmetrical state with the first door 251a.

Here, the first door 251a and the second door 251b form an inclined surface in a symmetrical state to increase the flow rate of the outdoor air and also prevent the reverse flow of the outdoor air.

The door link 253 is a member that links the first door 251a and the second door 251b according to the operation of the driving member 252.

For example, the door link 253 is formed in a bar shape as shown in FIG. 4, and is provided at the other ends of the first door 251 a and the second door 251 b through the long holes 253 a respectively provided on both sides thereof. The first door 251a and the second door 251b interlock with each other in a rotatable state and move in the longitudinal direction of the intake line 220 by the rod 252a of the driving member 252.

As shown in FIGS. 4 and 5, the driving member 252 opens and closes the door link 253 to open and close the first door 251a and the second door 251b. For example, the driving member 252 may be a driving motor or an actuator. The rod 252 may be reciprocated under the control of the damper controller 240 while being connected to the door link 253 through the rod 252a.

Here, when the drive member 252 is configured as a drive motor, the drive link 253 is moved forward and backward while rotating the rod 252a in a state of being screwed with the door link 253 through the rod 252a, and as an actuator. When configured, the first door 251a and the second door 251b are opened and closed at the same time by reciprocating the rod 252a while being coupled to the door link 253 in the same manner through the rod 252a.

In detail, the driving member 252 moves the door link 253 in the air movement direction while drawing the rod 252a as shown in FIG. 4. Accordingly, the first door 251a and the second door 251b are opened in the form of being opened while moving along the long hole 253a of the door link 253.

In addition, the driving member 252 moves the door link 253 in the opposite direction while receiving the rod 252b as shown in FIG. Accordingly, the first door 251a and the second door 251b are closed in the form of being retracted while moving along the long hole 253a of the door link 253.

Here, the driving member 252 and the door link 253 is preferably installed outside the intake line 220 and connected to the first door 251a and the second door 251b.

In addition, the first door 251a and the second door 251b may be shock-absorbed due to the closing as the buffer packing 254 is attached to the other end, respectively, to close the intake passage 220 in a sealed state. Can be.

On the other hand, the outdoor air damper 250 may be composed of an actuator that opens and closes while rotating a plurality of blades and blades installed in a rotatable state in a portion of the intake line 220 in the same manner as the above-described internal air damper 221. .

In addition, the external air damper 250 may be a configuration of a variable air volume type used in a VAV system (Variable Air Volume System), for example.

The sensing member 230 is installed in the indoor and outdoor, respectively, as shown in Figure 2 to sense the temperature / humidity of the outdoor air and indoor air provided to the damper controller 240.

The damper controller 240 controls the opening and closing of the air damper 250 or the internal air damper 221 of the intake line 220.

The damper controller 240 detects an enthalpy (heat content) of the indoor / outdoor air based on the temperature / humidity data of the indoor / outdoor air detected by the sensing member 230, and based on the detected enthalpy. The opening and closing of the damper 250 and the bet damper 221 is proportionally controlled.

For example, indoors in which computer equipment is installed, such as a computer room, must maintain four seasons cooling. In spring / autumn or winter, the enthalpy of outdoor air is lower than that of indoor air, so the controller 250 closes the bet damper 221 and the outside air. Opening the damper 250 allows the outside air to flow into the air conditioner 100. In addition, since the enthalpy of the outdoor air is higher than the enthalpy of the indoor air in the summer, the controller 250 returns the indoor air to the air conditioner 100 by closing the external air damper 250 and opening the internal air damper 221. .

Here, it is preferable that the damper controller 240 is connected to the air conditioner 100 to open or close the external air damper 250 or the internal air damper 221 in a proportional control manner according to the amount of air discharged from the air conditioner 100. Do.

In addition, the damper controller 240 may proportionally control the outdoor air damper 250 and the internal air damper 221 together with the exhaust damper while controlling the opening and closing of the exhaust damper installed in the exhaust line not shown to exhaust indoor air to the outside. have.

In addition, the air supply device 200 for air conditioning of the present invention may further include a pre-cooling / cleaning unit 260 as shown in FIG. 2.

The pre-cooling / cleaning unit 260 is a component for preliminary cooling and pre-humidification while washing the outdoor air while injecting moisture into the outdoor air introduced into the filtering unit 260.

The precooling / cleaning unit 260 may include, for example, a precooling chamber 261, a spray nozzle 262, and a drain 263, as shown in FIG. 3.

The pre-cooling chamber 261 may be configured as an enclosure as shown in FIG. 3, and as the intake line 220 is connected to the other side with the filtering unit 210 installed on one side, the filtering unit 210 and the intake air. The line 220 communicates with each other to provide an accommodation space for outdoor air.

As shown in FIG. 3, the fine spray nozzle 262 injects water into the receiving space of the precooling chamber 261 in a fine sprayed state.

Accordingly, the air accommodated in the precooling chamber 261 is supplied to the intake line 220 in a humidified state while being cooled by the water sprayed from the fine spray nozzle 262, and is not filtered by the filtering unit 210. Foreign objects can be cleaned.

The drain 263 is provided at the lower end of the precooling chamber 261 as shown in FIG. 3 to discharge the moisture and foreign matter collected to the lower part of the precooling chamber 261 to the outside.

Further, the present invention further includes a sterilization unit 600 provided in the intake line 220 to decompose and sterilize harmful substances of outdoor air supplied to the air conditioner 100. Can be configured.

The sterilization unit 600 may include, for example, a base member 610, an ultraviolet lamp 620, a photocatalyst grill 630, and a photocatalyst guide 640, as shown in FIG. 6.

The base member 610 is fixed to the intake line 220. The base member 610 may be provided with members for controlling and controlling the power of the ultraviolet lamp 620, such as a ballast not shown.

The ultraviolet lamp 620 emits ultraviolet rays while emitting light while being installed in the base member 610.

Ultraviolet rays have germicidal power as it is known. Particularly, those having a wavelength of around 250 nm have a large sterilizing power, and 99% of Escherichia coli, Diphtheria, and Heterogeneous bacteria are sterilized by irradiating ultraviolet ray having a intensity of 100 μW per 1 cm 2 for 1 minute.

The type or detailed configuration of the ultraviolet lamp 620 is well known in the art to which the present invention pertains, and thus detailed description thereof will be omitted.

The photocatalyst grill 630 is a member that decomposes harmful substances while reacting with the light of the ultraviolet lamp 620 by accommodating the ultraviolet lamp 620 while the photocatalyst is coated.

Here, the type of photocatalyst is not limited, and any configuration known in the art to which the present invention belongs, such as titanium dioxide photocatalyst, may be adopted.

Titanium dioxide photocatalysts are n-type semiconductors that, when subjected to ultraviolet light (400 nm), form electrons and electron holes to form hydroxy radicals (-OH) and super oxides with strong oxidizing power. Hydroxy radicals and superoxide decompose organic compounds into water and carbon dioxide.

In this way, pollutants in the air are oxidized and decomposed into harmless water and carbon dioxide, and the organic compounds, which are contaminants in the water, are decomposed into water and carbon dioxide. Since bacteria are also organic compounds, they are oxidized and decomposed by the strong oxidizing action of the photocatalyst and sterilized.

The photocatalyst grill 630 is formed in a tubular shape as shown in FIGS. 6 and 7 so that the photocatalyst is coated on the inner circumferential surface and the outer circumferential surface, and coupled to the base member 610 in a detachable state. It is accommodated therein and transmits the light of the ultraviolet lamp 620 to the outside as the plurality of transmission holes 631 are formed.

Here, the photocatalyst grill 630 may be screwed with the base member 610, otherwise it may be coupled through a fixing protrusion not shown or detachably coupled through a separate fixing member such as a fixing bolt.

The photocatalyst guide 640 is a component for increasing the contact time between the air introduced into the photocatalyst grill 630 and the photocatalyst.

The photocatalyst guide 640 may be configured as a protrusion plate 641, for example, as illustrated in FIGS. 6 and 7.

As shown in the drawing, the protruding plate 641 protrudes in an arc shape on the inner circumferential surface of the photocatalyst grill 630 and bypasses air as it protrudes alternately along the longitudinal direction of the photocatalyst grill 630 while forming a symmetrical state.

That is, since the air introduced into the photocatalyst grill 630 moves in a zigzag form by the alternating protrusion plate 641, the contact time with the photocatalyst is increased, so that the harmful substances can be smoothly purified.

On the contrary, the photocatalyst guide 640 may be configured as a screw guide plate which protrudes in the form of a screw along the inner circumferential surface of the photocatalyst grill 630 to guide the air in a rotating state.

In addition, the sterilization unit 600 of the present invention may further comprise a reflecting plate 650 as shown in FIG.

Reflector 650 is a component for inducing the reaction of the photocatalyst coated on the outer circumferential surface of the photocatalyst grill 630 by reflecting the light of the ultraviolet lamp 620 transmitted through the transmission hole 631 of the photocatalyst grill 630 to be.

Here, as the ultraviolet lamp 620 is accommodated in the photocatalyst grill 630, light is directly irradiated only to the inner circumferential surface of the photocatalyst grill 630, and light is not directly irradiated to the outer circumferential surface.

As shown in FIG. 7, the reflective plate 650 directly reflects the light of the ultraviolet lamp 620 on one side of the photocatalyst grill 630 and directly irradiates the outer circumferential surface of the photocatalyst grill 630, thereby The photocatalyst coated on the outer circumferential surface may decompose harmful substances in the air while reacting smoothly with the light of the ultraviolet lamp 620 reflected by the reflector 650.

The reflective plate 650 may be formed of, for example, a metal mirror having durability. One side of the photocatalyst grill 630 is fixed to the base member 610 or attached to the casing 110 as shown in FIG. 7. Or on both sides.

The present invention may further include an exhaust line, an exhaust damper, and a carbon dioxide concentration sensor.

The exhaust line, not shown, is a component for discharging indoor air to the outside, for example, may be connected to the outside while having the same configuration as the intake line 220.

The exhaust damper opens and closes the exhaust line while operating by the damper controller 240 described above, and the same configuration as the above-described internal damper 221 or the external air damper 250 may be applied.

The carbon dioxide concentration sensor detects the concentration of carbon dioxide contained in the indoor air and provides the damper controller 240.

Here, the damper controller 240 may control the opening and closing of the exhaust damper according to the detection signal of the carbon dioxide concentration sensor, and proportionally control the opening and closing of the exhaust line and the intake line 220 while controlling the external air damper 250 described above. Can be.

As described above, the air conditioning apparatus 200 according to the present invention is connected to various types of air conditioners 100 such as a tower type, a ceiling type, or a wall-mounted type, and selectively supplies outdoor air or indoor air.

According to the air supply device 200 of the present invention, the outdoor air damper 250 and the air damper 221 are automatically proportionally controlled by the controller 250 based on the enthalpy (heat content) of outdoor air or indoor air. Since it supplies air, it is possible to reduce energy consumption by cooling the indoors by using outdoor air, especially during the spring, autumn and winter, except summer.

In addition, since water provided from the pre-cooling / cleaning unit 260 is injected into the outdoor air introduced into the filtering unit 210, the outdoor air is pre-cooled and pre-humidified, thereby reducing energy consumption of the air conditioner 100. In addition, as foreign substances or harmful substances of the external air that are not filtered by the filtering unit 210 are cleaned, high-quality external air may be supplied to the air conditioner 100.

Specifically, as the precooling / cleaning unit 260 is composed of the precooling chamber 261, the fine spray nozzle 262, and the drain 263, the fine spray nozzle 262 with external air accommodated in the precooling chamber 261. Through pre-cooling / humidification and cleaning through, the cleaned foreign matter may be discharged to the drain 263 with water.

In addition, since the open / close door 251 constituting the outdoor air damper 250 is configured to have a narrow cross-sectional area in the direction of air movement, the air flow rate is increased, so that the air flow in the intake line 220 can be smoothly communicated. .

In particular, since the opening and closing door 251 is composed of the first door 251a and the second door 251b which are inclined in a symmetrical state, it is also possible to increase the air flow rate and to prevent the backflow of the air.

In addition, as the first door 251a and the second door 251b are connected to the driving member 252 through the door link 253, the first door 251a and the first door 251a and the first door 251a and 251b are operated only by the operation of one driving member 252. The two doors 251 b may interlock in a symmetrical state.

In addition, the photocatalyst grill coated with the photocatalyst 630 may receive the ultraviolet lamp 620 in a transmissive state and decompose harmful substances through the reaction of the photocatalyst with light, and in particular, a photocatalyst on the inner circumferential surface of the photocatalyst grill 630. As the guide 640 is provided to increase the contact time between the photocatalyst and the air, harmful substances, bacteria, or odors in the air may be smoothly decomposed.

In addition, since the arc-shaped protruding plate 641 constituting the photocatalyst guide 640 alternately protrudes on the inner circumferential surface of the photocatalyst grill 630, the air introduced into the photocatalyst grill 630 contacts with the photocatalyst in a zigzag form. This can be increased.

Then, the light of the ultraviolet lamp 620 transmitted through the transmission hole 631 of the photocatalyst grill 630 is reflected by the reflecting plate 650 and irradiated to the outer circumferential surface of the photocatalyst grill 630, so that the photocatalyst coated on the outer circumferential surface is Can react with light smoothly.

In addition, while the damper controller 240 controls the outdoor air damper 250, the damper controller 240 opens and closes the exhaust damper not shown in accordance with the carbon dioxide concentration of the indoor air, thereby allowing outdoor air to be introduced and ventilating the indoor air.

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. It will be apparent to those skilled in the art that various changes, substitutions, and alterations can be made therein without departing from the spirit of the invention.

100: air conditioner
200: air supply for air conditioning
210: filtering unit 220: intake line
221: bet damper 230: sensing member
240: damper controller
250: air damper 251: opening and closing door
251a: first door 251b: second door
252: drive member 252a: rod
253: door link 253a: long hole
254: buffer packing 260: pre-cooling / cleaning unit
261: precooling chamber 262: atomizing nozzle
263: drain 270: blower
600: sterilization unit 610: base member
620: UV lamp 630: photocatalyst grill
631: penetration hole 640: photocatalyst guide
641: protrusion plate 650: reflector plate

Claims (8)

As an air conditioner for supplying indoor air or supplying outdoor air to a plurality of air conditioners installed indoors to control the temperature and humidity of the room to a set temperature and humidity,
Filtering unit for filtering foreign matters of the introduced air while the outside air is shielded inlet;
One end is communicably connected to the filtering unit, and the other end is communicatively connected to each air conditioner while forming a manifold to distribute outdoor air, and an internal damper is provided to return the indoor air to the air conditioner. Duct type intake line;
An external air damper for controlling the flow rate of the outdoor air while shielding the intake line to be openable and closed respectively;
Sensing member for sensing the temperature and humidity of the outdoor air and indoor air; And
And a damper controller controlling the opening and closing of the internal damper or the external air damper.
The damper controller,
The enthalpy of the indoor air and the outdoor air is respectively detected through the data sensed by the sensing member, and the opening and closing ratios of the internal damper and the external air damper are proportionally controlled based on the detected enthalpy. .
The method according to claim 1,
The external air damper,
An opening / closing door installed in the intake line so as to be opened and closed; And
And a driving member which opens and closes the open / close door while providing a driving force under the control of the damper controller.
Wherein the opening /
Air-conditioning air supply device characterized in that the opening and closing by the drive member to form a narrow cross-sectional area in the air moving direction of the intake line.
The method of claim 2,
Wherein the opening /
A first door connected to the driving member with one end hinged to an upper end of the intake line, the other end pivoting around the one end, and the other end being inclined in the air moving direction;
One end is hinged to the lower end of the intake line while forming a symmetrical state with the first door, and the other end is pivotally rotated about the one end by the driving member to be closed while being in close contact with the other end of the first door. 2 doors; And
And a door link connecting the first door and the second door to the driving member and interlocking the first door and the second door according to the driving of the driving member. .
The method of claim 3,
Wherein the driving member comprises:
Connected to the door link, the air supply for air conditioning using the outside air, characterized in that composed of a drive motor or an actuator for moving the door link forward and backward while operating by the damper controller.
The method of claim 3,
The door link,
Long holes connected to the other ends of the first door and the second door in a rotatable state are formed at both sides thereof to move in the longitudinal direction of the intake line by the driving member, and the first door and the second door. The air supply device for air conditioning, characterized in that for opening and closing the first door and the second door while moving the other end of the long hole.
The method according to claim 1,
And a pre-cooling and washing unit installed between the filtering unit and the intake line and pre-cooling and pre-humidifying the air while cleaning the outdoor air by injecting moisture into the outdoor air introduced into the filtering unit. Air supply.
The method of claim 6,
The precooling and washing unit,
A pre-cooling chamber in which the filtering unit is installed in a communicable state on one side, and the intake line is communicatively connected to the other side to accommodate outdoor air introduced into the filtering unit;
A fine spray nozzle installed in the precooling chamber and spraying water into the receiving space of the precooling chamber in an atomized state; And
And a drain for discharging the moisture collected into the lower portion of the precooling chamber to the outside.
The method according to claim 1,
And an external air inlet blower provided in the intake line and operated by the damper controller to provide a vacuum negative pressure to the intake line to introduce outdoor air into the filtering unit.

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