KR100669028B1 - Ventilating system and method for controlling damp thereof - Google Patents

Abstract

A ventilation system and a method of controlling a damper thereof are provided to reduce the number of dampers used in the ventilation system, thereby reducing manufacturing cost. A ventilation system includes first and second indoor units(10a,10b), a heat exchanger(20), first and second suction ducts(30a,30b), first and second discharge ducts(40a,40b), a divergence pipe(50a), a convergence pipe(50b), a suction damper(51a), and a discharge damper(51b). The first and second indoor units are installed at two indoor spaces. The heat exchanger is connected to the first and second indoor units to exchange heat between the indoor air and the outdoor unit. The first and second suction ducts supply the air into the first and second indoor units from the heat exchanger. The first and second discharge ducts discharges the air to the heat exchanger. The divergence pipe connects the first and second suction ducts. The convergence pipe connects the first and second discharge ducts to the heat exchanger. The suction damper is installed at the divergence pipe. The discharge damper is installed at the convergence duct.

Description

Ventilating system and method for controlling damp particular}

1 is a conceptual diagram showing a two-room ventilation system according to an embodiment of the present invention.

FIG. 2 is a detailed view of a damper used in the ventilation system of FIG. 1. FIG.

* Description of symbols on the main parts of the drawings *

10a: First Room 10b: Second Room

20: total heat exchanger 23: air supply passage

24; Exhaust duct 30a: Class 1 duct

30b: Class 2 duct 31: Euro 1

32: second euro 40a: first exhaust duct

40b: 2nd exhaust duct 50a: branch pipe

50b: laminated pipe 51a: air supply damper

51b: exhaust damper 60: step motor

The present invention relates to a ventilation system and a damper control method of the ventilation system, and more particularly, to a two-room ventilation system and a damper control method of the ventilation system in which two indoor units are connected to one electrothermal exchanger.

The air in an enclosed space increases the carbon dioxide content over time due to the breathing of living things, which interferes with the breathing of living things. Therefore, when many people stay in a narrow space such as an office, it is necessary to replace the indoor air with fresh air. In this case, the ventilation system is commonly used. In particular, the necessity of the ventilation system to remove the form house (HCHO) and the volatile organic compound (VOC) generated in the new house syndrome, that is, the new house, is emerging. .

In such a ventilation system, most of the heat exchangers are used to reduce heat loss caused by the inflow of outdoor air into the room. In recent years, two indoor units are connected to one heat exchanger to reduce the number of heat exchangers used. Room ventilation systems have emerged.

When the ventilation operation is started in the two-chamber ventilation system, dampers provided in each indoor unit to be operated are opened, and ventilation fans are driven by driving the blower fans provided in the heat exchanger and the indoor unit, respectively. If only one indoor unit of the two indoor units is operated, the damper on the indoor unit side to be operated is opened and only one indoor unit is operated by closing the damper on the indoor unit side which is not operated.

The air supply duct and the exhaust duct connected to the indoor unit of the two-chamber ventilation system are provided with a plurality of dampers for opening and closing the flow path. Since the dampers are installed at the indoor unit, the wind pressure generated by the heat exchanger side is not operated. The damper of the indoor unit is caught, which causes noise from the indoor unit that is not operating.

In addition, since each damper is used to open and close the flow paths of the air supply duct and the exhaust duct of each indoor unit, the product cost of the ventilation system also increases due to the use of many dampers.

The present invention is to solve the above problems, an object of the present invention is a ventilation system and a damper control method of the ventilation system capable of removing the noise generated by the wind pressure applied to the indoor unit that is closing the flow path. To provide.

In addition, it is to provide a ventilation system and a damper control method of the ventilation system that can reduce the cost by reducing the number of dampers used in the ventilation system.

In order to achieve the above object, the ventilation system according to the present invention is connected to the first and second rooms, respectively installed in the two indoor spaces, and the heat transfer to heat exchange the indoor air and outdoor air respectively connected to the first and second rooms A first exchanger duct for supplying air from the total heat exchanger to the first and second chambers, and first and second exhaust ducts for exhausting air from the first and second chambers to the heat exchanger, respectively; And a branch pipe connecting the first heat exchanger and the first and second class ducts, and a laminated pipe connecting the first and second exhaust ducts to the first heat exchanger, and the branch pipes for opening and closing the first and second class ducts. An air supply damper is installed, and the laminated pipe is provided with an exhaust damper for opening and closing the first and second exhaust ducts.

The air supply damper may be installed at a boundary between the first air supply duct and the second air supply duct to open and close air to supply air to at least one air supply duct. It is installed at and opened to exhaust air by at least one exhaust duct.

In addition, the air supply damper and the exhaust damper are each driven by a step motor rotating by a predetermined angle.

The damper control method of the ventilation system according to the present invention is a ventilation system including a first heat exchanger installed in two indoor spaces, respectively, and a total heat exchanger connected to the first and second indoor rooms to heat exchange indoor air and outdoor air, respectively. In the damper control method of the present invention, the first and second air supply ducts are opened and closed by rotating one air supply damper provided at the boundary of the first and second air supply ducts for supplying air from the heat exchanger to the first and second chambers, respectively. The first and second exhaust ducts are opened and closed by rotating one exhaust damper provided at the boundary of the first and second exhaust ducts that exhaust air from the first and second chambers to the heat exchanger, respectively.

In addition, the air supply and exhaust ducts open the air supply duct and the exhaust duct connected to the indoor unit operating in the first and second rooms, and the air supply duct and the exhaust duct connected to the indoor unit that does not operate are closed.

Hereinafter, a ventilation system and a control method thereof according to an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in Figure 1, the ventilation system according to the present invention is connected to the two indoor units (10a, 10b) and each of the indoor units (10a, 10b) installed in each indoor space to heat exchange the indoor air and outdoor air One electrothermal exchanger (20) is provided. The first indoor chamber 10a is connected to the total heat exchanger 20 by the first air supply duct 30a and the first exhaust duct 40a to form the first flow passage 31, and the second indoor room 10b is The second flow path duct 30b and the second exhaust duct 40b are connected to the total heat exchanger 20 to form the second flow path 32.

Each indoor unit (10a, 10b) is installed in the upper corner of the interior space where the two side walls of the building so that the upper surface is in contact with the ceiling of the indoor space, and has a fan shape so that it is easy to be installed in the upper corner of the indoor space. Each indoor unit (10a, 10b) is formed with a discharge port (11a, 11b) for discharging the air introduced from the outside into the indoor space, the blowing force to flow the air inside each indoor unit (10a, 10b) Casings 13a and 13b which surround the blower fans 12a and 12b and the blower fans 12a and 12b to generate air and discharge air radially discharged from the blower fans 12a and 12b to the outlets 11a and 11b. ) Are each provided. Such indoor units 10a and 10b may be equipped with various filters to purify various harmful substances.

The interior of the total heat exchanger 20, which is connected to each indoor unit 10a and 10b and heat-exchanges the air introduced into the room and the air discharged from the room, is formed by a plurality of partitions 22 installed inside the rectangular case 21. It is divided into the air supply passage 23 and the exhaust passage 24, and the point where the air supply passage 23 and the exhaust passage 24 intersect so that the outdoor air introduced into the room and the indoor air discharged to the outside can exchange with each other. The total heat exchange element 25 which provides heat exchange without mixing the air passing through the air supply flow path 23 and the air passing through the exhaust flow path 24 with each other is provided. In addition, an air supply fan 27 for introducing outdoor air into the air supply passage 23 is provided on the air supply passage 23, and an exhaust fan 28 for exhausting indoor air to the air is provided on the exhaust flow passage 24, respectively.

One end of the total heat exchanger 20 is connected to the first and second air supply ducts 30a and 30b so that one air supply passage 23 is provided on the air supply side of the indoor units 10a and 10b. The first and second flow paths 31 and 32 provided at the exhaust side of the indoor units 10a and 10b by being connected to the air supply duct branch pipe 50a and the first and second exhaust ducts 40a and 40b branched by An exhaust duct lamination pipe 50b laminated to the exhaust flow passage 24 is provided. In addition, an air supply damper 51a and an exhaust damper 51b are respectively provided in the air supply duct branch pipe 50a and the exhaust duct lamination pipe 50b.

FIG. 2 is an enlarged view of a portion A showing the air supply duct branch pipe of FIG. 1.

As shown in FIG. 2, inside the air supply duct branch pipe 50a, the air supply duct 30a and the second air supply duct 30b are installed at the boundary between the first flow path 31 and the second flow path 32. An air supply damper 51a for opening and closing the air supply damper 51a is installed, and the air supply damper 51a is driven by the step motor 60 rotating by a predetermined angle. In this embodiment, the step motor 60 is preferably set to rotate by 90 degrees.

Next, look at the operation of the ventilation system configured as described above.

First, if the first chamber 10a is in operation and the second chamber 10b is not in operation, the microprocessor (not shown) rotates the step motor 60 to position the air supply damper 51a at Z to supply the second air supply duct. Close 30b. Then, the second flow passage 32 leading to the second chamber 10b is blocked by the air supply damper 51a, so that outside air cannot be introduced into the second chamber 10b.

Next, if the second indoor unit 10b is in operation and the first indoor unit 10a is not in operation, the microprocessor rotates the step motor 60 to position the air supply damper 51a at Y, thereby providing the first air supply duct 30a. Then, the first passage 31 leading to the first chamber 10a is blocked by the air supply damper 51a, so that no outside air can be introduced into the first chamber 10a.

Next, if both the first chamber 10a and the second chamber 10b are in operation, the microprocessor rotates the step motor 60 to position the air supply damper 51a at X. Then, both the first passage 31 leading to the first indoor chamber 10a and the second passage 32 leading to the second indoor chamber 10b are opened to supply the outside air to both the first and second indoor chambers 10a and 10b. Will be.

In this way, the air supply damper 51a is installed at the boundary between the first air supply duct 30a and the second air supply duct 30b in the air supply duct branch pipe 50a, and the air supply damper 51a is rotated so that the first and second air supply dampers 51a are rotated. The air supply duct connected to the indoor unit to operate among the indoor units 10a and 10b may be opened, and the air supply duct connected to the indoor unit not to operate may be closed to supply the outdoor air only to the indoor unit to operate.

In this way, the air supply damper 51a for blocking the outside air supplied to the indoor units 10a and 10b is installed in the air supply duct branch pipe 50a, thereby reducing noise generated at the indoor units 10a and 10b. In addition, since two air supply ducts (30a, 30b) can be opened and closed using one air supply damper (51a) it is possible to reduce the number of dampers to reduce the cost of the ventilation system.

An exhaust damper 51b is also provided at the boundary between the first flow passage 31 and the second flow passage 32 in the exhaust duct lamination pipe 50b. The operation of the exhaust damper 51b is similar to that of the air supply damper 51a. Since it is the same, description thereof is omitted.

What has been described above is only one embodiment for implementing the damper control rice method of the ventilation system and the ventilation system according to the present invention, the present invention is not limited to the above-described embodiment, but within the technical scope of the present invention Many modifications are possible to those skilled in the art.

As described in detail above, according to the damper control method of the ventilation system and the ventilation system according to the present invention, a branch pipe and a laminated pipe each include an air supply damper that blocks external air supplied to the indoor unit and an exhaust damper that blocks internal air exhausted from the indoor unit. By installing in the unit, noise generated on the indoor unit side can be reduced.

In addition, two air supply ducts can be opened and closed using one air supply damper, and two air exhaust ducts can be opened and closed using one exhaust damper, thereby reducing the number of dampers used in the ventilation system. Can be.

Claims (5)

First and second rooms respectively installed in two indoor spaces; An electrothermal heat exchanger connected to the first and second rooms respectively to heat exchange indoor and outdoor air; First and second air ducts for supplying air from the total heat exchanger to the first and second chambers respectively, and first and second exhaust ducts for exhausting air from the first and second chambers to the heat exchanger, respectively; A branch pipe connecting the electrothermal exchanger and the first and secondary air ducts, and a lamination pipe connecting the first and second exhaust ducts to the heat exchanger; An air supply damper is provided in the branch pipe to open and close the first and second air supply ducts, and the exhaust pipe is provided with an exhaust damper for opening and closing the first and second exhaust ducts. The method of claim 1, The air supply damper is installed at the boundary between the first air supply duct and the second air supply duct, and is opened and closed to supply air to at least one air supply duct, and the exhaust damper is installed at the boundary between the first air duct and the second air duct. And open and close to exhaust air with at least one exhaust duct. The method of claim 2, And the air supply damper and the exhaust damper are respectively driven by a step motor rotating by a predetermined angle. In the damper control method of the ventilation system comprising a first heat exchanger installed in two indoor spaces, respectively, and a total heat exchanger connected to the first and second indoor rooms to heat exchange indoor air and outdoor air, respectively. One air supply damper installed at the boundary of the first and second air supply ducts for supplying air from the total heat exchanger to the first and second rooms, respectively, is rotated by a motor to open and close the first and second air supply ducts, and the first and second air supply ducts are opened. A damper control method for a ventilation system for opening and closing first and second exhaust ducts by rotating one exhaust damper provided at a boundary between first and second exhaust ducts for exhausting air from an indoor unit to the heat exchanger, respectively. The method of claim 4, wherein And the air supply and exhaust dampers open the air supply duct and the exhaust duct connected to the indoor unit operating in the first and second rooms, and close the air supply duct and the exhaust duct connected to the indoor unit not operating.

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