KR102231073B1 - Air handling unit with heat recovery and multi-stages hepa-filter - Google Patents

Abstract

The present invention relates to an air conditioner in which a heat recovery device and a HEPA filter are mounted in multiple layers,
A first unit unit 110 provided with a return fan 111 to suck and circulate air in the room, and having a ventilation port 112 at the top to suck indoor air; When exhausting the air introduced from the outside and two or all of the air introduced from the first unit unit 110, the interior includes a counterflow heat recovery device 121 that recovers air heat from the exhaust, and has completed heat exchange A second unit unit 120 for exhausting air to the outside; A filter module 131 for filtering air is provided, and a third unit unit 130 disposed at a downstream side of the second unit unit 120 to filter the air introduced through the second unit unit 120 Including;, the filter module 131 of the third unit unit 130 is a HEPA filter that filters a plurality of ultrafine dust, bacteria, viruses, and contaminants provided between the upper and lower sides in a multilayer type ( HEPA -Filter) is mounted in multiple layers and an air conditioner equipped with a counterflow heat recovery device is provided.
Therefore, since the HEPA-Filter has a very large front area, it prevents static pressure loss from the air conditioner that may occur when the filter is mounted in the air conditioner, facilitates the flow of air, and prevents the air volume from being lowered. There is an effect of enabling the operation of the air conditioner.

Description

Air conditioner equipped with heat recovery and multi-layered HEPA filter {AIR HANDLING UNIT WITH HEAT RECOVERY AND MULTI-STAGES HEPA-FILTER}

The present invention relates to an air conditioner equipped with a heat recovery device and a HEPA filter mounted in multiple layers, and more particularly, a HEPA filter capable of reducing static pressure loss and smoothing air flow by improving the front area of the filter provided in the air conditioner. It relates to an air conditioner that can obtain clean air without the need for a HEPA filter box in a clean room facility because the is mounted in multiple layers.

An air conditioner is a device installed for the purpose of cooling or heating an indoor space or purifying air to create a comfortable indoor environment for humans, and includes heaters, air conditioners, and air purifiers. That is, the air conditioner creates a pleasant atmosphere for human activities by controlling the temperature, humidity, and airflow of the indoor space, and filters and collects foreign substances such as dust contained in the indoor air in the process of circulating indoor air. It is to create an indoor environment.

Such an air conditioner sucks indoor and outdoor air using the suction power of a blower fan, and then heats or cools the sucked air while passing through a heat exchanger, and then discharges it back to the room to perform a cooling or heating function. In addition, a filter is installed in the air conditioner to filter the circulated air to purify the indoor air.

However, since the filter provided in the air conditioner acts as an element that hinders the smooth flow of air, when the filter is provided in the air conditioner, static pressure loss of the air conditioner due to the filter occurs, thereby reducing the air volume. In particular, in the case of vertical arrangement as in the present, the HEPA filter could not be installed in the air conditioner.

In order to solve this problem, the present invention is designed as a multilayer as shown in the accompanying drawings to increase the front area through which air passes by 6 to 10 times, thereby reducing the static pressure loss of the HEPA filter by 6 to 10 times, so that it can be used in a clean room with only air conditioners. There is a background technology for making an air conditioner that has the same.

Meanwhile, as a result of researching the prior art related to the present invention, a number of patent documents have been searched, and some of them are as follows.

Patent Document 1 includes a housing formed in a hollow cylindrical shape with at least one open end, an air filter being accommodated and fixed, a suction hole communicating with the opening at a bottom surface thereof, and a discharge hole connected to the suction duct at the side thereof, , A hollow diffuser pipe coupled with an air filter is coupled to the suction hole, and a blocking plate that forms an annular passage between the diffuser pipe is coupled to the center of the diffuser pipe, and the air filter is formed in a hollow cylindrical shape. It can be installed in a narrow space, and the filtration area along the circumference is increased compared to the plate-shaped filter to improve filtration efficiency, and indoor air is introduced through the annular passage to reduce the load on the fan motor and reduce noise when inhaling. Disclosed is an air filter assembly for an air conditioner that is reduced and is easy to replace and clean.

Patent Literature 2 describes a pair of vertical side frames and a horizontal upper frame and a lower frame respectively horizontally provided at the upper and lower ends thereof to form a rectangular frame as a whole, and foreign matter deposited on the air filter while the suction unit driven by the control unit moves vertically and horizontally. In the cleaning apparatus of an air filter for an air conditioner that removes, an upper guide rod is provided between a lower upper guide rod support of the upper frame and an upper slide support at an upper end of the upper block located at the upper end of the vertical frame, and the upper end of the lower frame A lower guide rod is provided between the lower guide rod support and the lower lower slide support of the lower block located at the bottom of the vertical frame, and a side guide rod is provided between the side side guide rod support of the lower frame and the inner side slide support of the lower block. It is provided, and a suction unit operating means moving left and right along the upper and lower guide rods are provided, and the suction unit operation means is vertically erected between the upper block and the lower block, and is divided at both ends so that a space is formed therebetween. A pair of vertical frames provided, a screw that is vertically erected between the upper block and the lower block, and rotates by the drive of a screw drive motor, and a vertical guide bar with one end vertically erected between the upper and lower blocks. Is connected to, and the other end is provided with an elevating operation port which is connected to the screw to move up and down, and the suction part has a pipe connected to the elevating operation port, and the front of this pipe has a housing with a suction nozzle installed therein. It is equipped with a suction pipe connected to the rear side. It reduces manpower loss due to frequent breakdowns, improves air quality comfortably, and significantly improves product quality and reliability to provide high-efficiency and excellent products to consumers. Disclosed is an automatic vacuum cleaning apparatus for an air filter for an air conditioner and a method for controlling the same.

Patent Document 3, a filter frame provided with a flange bent inward; A second filter formed of a waveform built in the rear of the filter frame; Silicone caulked between the inner surface of the filter frame and the upper, lower, left, and right edges of the second filter to hermetically seal the gap; A first filter formed in a plate shape built in the front of the filter frame; It includes a protective net that is inserted into the filter frame and supported by a support rod so as to be disposed in front of the first filter, and can be manufactured by a simple process, thereby reducing manufacturing cost and greatly improving productivity, and reducing disposal cost, Disclosed is an air filter for an air conditioner that prevents fine dust from escaping between the frame and the filter.

Patent Document 4 relates to a filter for an air conditioner comprising an edge portion, a dust collection net formed inside the edge portion, a motor installed in one direction of the dust collection net, and a brush that is in close contact with the dust collection network and rotates by the motor. In the above, the brush is formed by a support formed in the middle part, and a flexible auxiliary support extending in the longitudinal direction of the support at both ends of the support, and the dust collecting net can be made into a square shape to increase the dust collection area. Disclosed is an air conditioner filter capable of removing dust in blind spots that can maintain the clean state of the filter by allowing the blind spots that can not be solved by the brush rotating only in a circular shape to be removed by a flexible auxiliary support. .

Korean Utility Model Registration No. 20-0374130 Korean Patent Registration No. 10-0787778 Korean Patent Registration No. 10-0838050 Korean Patent Registration No. 10-1956632

The present invention was conceived to solve the above problems of the prior art, and an air conditioner equipped with a multi-layered HEPA filter and a heat recovery device capable of reducing static pressure loss and smooth air flow by improving the structure of a filter provided in an air conditioner. It aims to provide.

The present invention is an air conditioner in which a heat recovery device and a HEPA filter are mounted in multiple layers, comprising: a first unit unit 110 for circulating the air returned through the return fan 111; It includes a counterflow heat recovery device 121 that raises the temperature of the air introduced from the first unit 110 (in winter) or lowers the temperature (in summer), and exhausts the heat-exchanged indoor air to the outside. 2 unit unit 120; A filter module 131 for filtering air is provided, and a third unit unit 130 disposed at a downstream side of the second unit unit 120 to filter the air introduced through the second unit unit 120 Including;, the filter module 131 of the third unit unit 130 is a HEPA filter (HEPA-Filter) provided in a multi-layered upper and lower side in a multi-layered form to prevent ultrafine dust, bacteria, viruses, etc. Provides an air conditioner equipped with a filtering function and heat recovery to recover exhaust heat.

In addition, a fourth unit unit 140 for supplying air sucked from the third unit unit 130 to the room through an air supply fan 141 is disposed on the downstream side of the third unit unit 130, And a fourth unit unit 140 for introducing air from the third unit unit 130 using an air supply fan 141 and supplying air to the room through the supply port 142.

In addition, the return fan 111 and the air supply fan 141 may include a motor direct connection type fan.

In addition, the second unit unit 120 is provided with an outdoor air intake port 122 for inhaling the outside air and an exhaust port 123 for exhausting the air, respectively.

In addition, the filter of the filter module 131 may be disposed at a slope value within a range of approximately 10° to 65°.

In addition, the filter module 131 may have a value within the range of 300mm to 800mm in width, 300mm to 1,500mm in height, and a value in the range of 100mm to 300mm.

According to the present invention, by mounting a filter in an air conditioner in multiple layers, there is an effect of preventing a loss of static pressure, which is inevitable in a general air conditioner, smoothing the flow of air, and preventing a decrease in air volume, thereby enabling a complete air conditioner operation. .

In addition, there is an effect of reducing energy loss by recovering more than 60% of heat when exhausting indoor air.

In addition, it uses a BLDC motor direct-connected fan with free RPM adjustment and no dust caused by belt abrasion by using a motor direct-connected fan.

In addition, there is an effect of being able to manufacture an inexpensive air conditioner compared to the general conventional method.

1 is a diagram illustrating an air conditioner in which a heat recovery device and a HEPA filter are mounted in multiple layers according to an embodiment of the present invention.
2 to 4 are schematic diagrams showing the configuration of an air conditioner in which a heat recovery device and a HEPA filter are mounted in multiple layers according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention will become apparent with reference to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms. It is provided to fully inform the scope of the invention to the possessor, and the invention is defined by the scope of the claims. Meanwhile, terms used in the present specification are for explaining embodiments and are not intended to limit the present invention. In this specification, the singular form also includes the plural form unless specifically stated in the phrase. As used in the specification, "comprises" and/or "comprising" refers to the recited component, step, operation, and/or element. Do not rule out. Terms such as first and second may be used to describe various components, but the components should not be limited by terms. The terms are used only for the purpose of distinguishing one component from another component.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 is a diagram illustrating an air conditioner in which a heat recovery device and a HEPA filter are mounted in multiple layers according to an embodiment of the present invention.

Referring to FIG. 1, the air conditioner 100 equipped with a heat recovery unit and a HEPA filter includes a first unit unit 110 and a second unit unit 120 that are sequentially disposed from an upstream side to a downstream side in a flow direction of air, It includes a third unit unit 130 and a fourth unit unit 140.

The first unit unit 110 is for recirculating or exhausting indoor air, and includes a return fan 111 for inhaling indoor air, and a predetermined ventilation port 112 at the upper side so that indoor air is sucked. Is formed. In addition, the indoor air introduced into the first unit unit 110 is circulated indoors or is exhausted to the outside after heat exchange is completed in the second unit unit 20.

The second unit unit 120 is for changing the airflow of the air introduced from the first unit unit 110 using air introduced from the outside, and the air introduced from the outside and the first unit unit 110 ) And a counter flow type heat recovery device 121 for recovering the indoor air that has passed through the heat recovery device. To this end, the second unit unit 120 includes an outdoor air inlet 122 for inhaling outside air, and an exhaust port 123 for exhausting the heat-exchanged indoor air. In this case, the external air intake port 122 and the exhaust port 123 are preferably provided on the upper side of the second unit unit 120. The counterflow heat recovery device 121 enables heat recovery during cooling or heating through heat exchange between indoor air and outside air.

In addition, the second unit unit 120 allows the air introduced from the first unit unit 110 to be directly supplied to the third unit unit 130 without passing through the counterflow heat recovery unit 121. A damper is further included, and a damper configured to block introduction of outside air is installed in the external device 122. Accordingly, it is possible to improve the cooling and heating efficiency by circulating indoor air as it is.

The third unit unit 130 is provided with a filter module 131 for filtering air to purify the air introduced through the second unit unit 120. It is arranged on the downstream side. Here, the filter module 131 of the third unit unit 130 has a multi-layered structure and includes a plurality of HEPA filters (High Efficiency Particulate Air Filters) provided between the upper and lower sides. The HEPA filter is a high-performance filter capable of removing fine dust in the air, and maintains a filtration rate capable of removing 99.997% or more of fine particles having a particle diameter of about 0.3 μm. The HEPA filter is mainly used in a unit type in which a material of glass fiber or asbestos fiber is folded to increase the penetration surface area. In addition, the third unit unit 130 may further include a second filter module 132 in addition to the filter module 131 including a HEPA filter. Here, the second filter module 132 includes a medium filter, and the third filter module 124 includes a pre-filter.

Here, the filter module 131 is disposed at a slope value within a range of approximately 10° to 65°. The filter module 131 is provided to have a value in the range of 300mm to 800mm in length, 300mm to 1500mm in length, and a value in the range of 100mm to 300mm in thickness. Preferably, the air velocity is 2.5m/s, the width of the HEPA filter is 600mm, the length of the HEPA filter is 1,000mm, and the height of one HEPA filter may be 250mm.

The fourth unit unit 140 is for supplying the air introduced from the third unit unit 130 into the room using an air supply fan 141, and a predetermined air supply port 143 is provided at the upper portion thereof, and the interior It is preferable that a cooling/heating coil 142 is provided to heat or cool the air. That is, the air introduced from the third unit 130 is heated or cooled using the cooling/heating coil 142 and then supplied to the room through the air supply port 143 to cool and heat the room.

On the other hand, it is preferable that the return fan 111 of the first unit unit 110 and the air supply fan 141 of the fourth unit unit 140 are formed of a fan of a motor direct connection method. Accordingly, RPM adjustment of the return fan 111 and the air supply fan 141 becomes smooth, and generation of dust due to belt wear is prevented.

2 to 3 are schematic diagrams showing the configuration of an air conditioner in which a heat recovery device and a HEPA filter are mounted in multiple layers according to another embodiment of the present invention. Hereinafter, a description will be made focusing on a portion having different technical characteristics from the above-described embodiment.

2 to 3, the filter module 131 of the third unit 130 is provided with an angle adjustment module 133 for easy angle adjustment. The angle adjustment module 133 includes a driving part 1331, a moving part 1332, a support part 1333, and a fixture 1334.

Here, the driving part 1331 is for providing a driving force for rotation with respect to the moving part 1332. That is, it is for tilting between the top and the bottom, and further, it is for driving in a complex manner by adding a tilt in the left and right directions.

The movable part 1332 is the filter module 131 mounted thereon, and is provided in the driving part 1332 to enable a tilt operation between the vertical and horizontal directions. The support part 1333 is capable of sliding forward and backward in the flow part 1332 in the longitudinal direction.

In addition to the sliding method, it is possible to insert and remove slots for each position in the moving part 1332 in the longitudinal direction. A fixing body 1334 for preventing the filter module 133 from being separated is provided above the support part 1333.

The fixing body 1334 may fix or release the filter module 133 in a rotating manner. Meanwhile, the driving part 1331, the flow part 1332, and the support part 1333 are provided.

The present invention has been described with reference to the embodiments shown in the drawings, but these are merely exemplary, and those of ordinary skill in the art will appreciate that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

110: first unit part
111: return fan
112: vent
120: second unit part
121: Counterflow type heat recoverer
122: external device
123: exhaust port
130: 3rd unit part
131: filter module
132: second filter module
133: angle adjustment module
1331: drive unit
1332: moving part
1333: base
1334: fixture
140: fourth unit part
141: air supply fan
142: cooling and heating coil
143: air supply

Claims (1)

An air conditioner equipped with a heat recovery means and a HEPA filter in multiple layers,
A first unit unit 110 for circulating the air sucked in the room through the return fan 111;
A second unit unit 120 provided with a counterflow type heat recovery unit 121 for recovering heat of the exhausted air by passing the air introduced from the first unit unit 110 through the heat recovery unit 121;
Including a third unit unit 130 provided with a filter module 131 for filtering the air introduced through the second unit unit 120,
Including a second filter module 132 and a third filter module 124 for filtering before that,
The filter module 131 of the third unit unit 130,
It is a multi-layered HEPA filter that is provided in a number between the upper and lower sides,
The filter module 131 is disposed at a slope value within the range of 10° to 65°,
The filter module 131 of the third unit 130 is provided with an angle adjustment module 133 for easy angle adjustment,
The angle adjustment module 133 includes a driving part 1331, a moving part 1332, a support part 1333, and a fixture 1334,
The driving unit 1331 is for providing a driving force for rotation of the moving unit 1332, and is provided to enable a tilt between an upper and a lower direction, and to drive a complex by adding a tilt in the left and right directions. ,
The flow unit 1332 is provided to allow the filter module 131 to be mounted, and is provided in the driving unit 1331 to enable a tilt operation between the vertical and horizontal directions,
The support part 1333 is provided so as to be able to slide forward and backward in the longitudinal direction in the flow part 1332,
A fixing body 1334 for preventing separation of the filter module 131 is provided above the support part 1333,
The fixed body (1334) is provided with a heat recovery device, characterized in that provided to fix or release the fixing of the filter module (131) in a rotating manner, and a HEPA filter is mounted in a multi-layer air conditioner.

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