KR200247275Y1 - Package air-conditioner module for individual cooling of building - Google Patents

Abstract

The present invention is connected to an outdoor cooling tower or a condensing unit to perform the cooling of the indoor air: a casing (10) having a pair of vents (10a) (10b) to be piped to the ceiling of the room ; First cooling means connected to the cooling tower or the cooling water and mounted inside the casing 10 to circulate the cooling water; Second cooling means for performing heat exchange using cooling water to maintain the refrigerant at a predetermined temperature; A fan motor 50 installed on one side of the vent holes 10a and 10b to induce the flow of cooling air; And it characterized in that it comprises a drain 60 for storing and discharging the water generated in the casing (10).

Accordingly, it can be applied to both the central and individual cooling method with a small initial investment cost, the cooling efficiency is maintained at a high maintenance cost with low maintenance costs, can be embedded in the ceiling to maximize the utilization of the interior space.

Description

Package air-conditioner module for individual cooling of building

The present invention relates to a cooling device, and more specifically, it can be applied to both central and individual cooling methods with a small initial investment cost, to maintain high cooling efficiency with a low maintenance cost, and to be mounted on a ceiling to maximize indoor space utilization. And an integrated air conditioner module for individual cooling of a building.

Conventional cooling of high-rise buildings is divided into central cooling using AHU (Air Handling Unit) and individual cooling using air conditioner. The former has a small initial investment cost but a high maintenance cost. Although the maintenance cost is low, the initial facility investment costs are high.

In addition, there is a FCU (Fan Coil Unit) method to combine the above-described central and individual cooling, which is difficult to independent cooling independently in a rigid sense because it requires a chiller (chiller) as a low-temperature heat source to generate cold water. In the FCU method, the coolant from the chiller is sent to the air conditioner (AHU) or the FCU to perform heat exchange with the indoor air. The chiller can be easily cooled, thus reducing the initial investment and maintenance costs.

On the other hand, the chiller's capacity is selected based on the total air-conditioning capacity, so even if only a part of cooling is required, it is always running, so there is no economical effect of local cooling, the cooling efficiency is not good, and the cold water inlet temperature must be maintained at 5 to 7 ℃. Care must be taken to keep warm.

Accordingly, the present invention can be applied to both central and individual cooling methods with a small initial investment cost, and the cooling efficiency is kept high with low maintenance costs, and it can be mounted on the ceiling, so that the individual cooling of buildings can be maximized. It is an object to provide an air conditioning module.

1 is a plan view showing the main configuration of the device according to the present invention,

2 is an exemplary view showing an installation state of a device according to the present invention.

Explanation of symbols on the main parts of the drawings

10: casing 15: base

20: water-cooled capacitor 30: compressor

40: cooling coil 50: fan motor

60: drain

In order to achieve the above object, the present invention is connected to an outdoor cooling tower or condensing unit to perform cooling of indoor air. A pair of vents (10a) and (10b) are provided to be connected to a ceiling of an indoor space. A casing 10; First cooling means connected to the cooling tower or the cooling water and mounted inside the casing 10 to circulate the cooling water; Second cooling means for performing heat exchange using cooling water to maintain the refrigerant at a predetermined temperature; A fan motor 50 installed on one side of the vent holes 10a and 10b to induce the flow of cooling air; And it characterized in that it comprises a drain 60 for storing and discharging the water generated in the casing (10).

As another feature of the present invention, the second cooling means performs a cooling cycle using the R-22 refrigerant.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment according to the present invention.

1 is a plan view showing the main configuration of the device according to the present invention.

The present invention relates to a device for cooling indoor air in connection with an outdoor cooling tower or a condensing unit, and is intended for individual cooling of high-rise buildings, but can be applied to both central and individual cooling methods.

The casing 10 according to the present invention is a part for accommodating the main components described later, and includes a pair of vents 10a and 10b to be piped to the ceiling of the room. The intake vent 10a is equipped with a filter to maintain the cleanliness of the cooling air introduced into the room. At the ends of the vents 10a and 10b, flanges are formed to enable duct connection. The base 15 is fixed to the bottom surface of the casing 10 to prevent damage or distortion of the casing 10 during transportation and installation.

At this time, the air vents 10a and 10b of the casing 10 are additionally provided with a damper for adjusting the air volume.

In addition, according to the present invention, the first cooling means and the second cooling means are mounted in the casing 10. The former is connected to the cooling tower or the cooling water and mounted inside the casing 10 to circulate the cooling water, and the latter performs heat exchange using the cooling water to maintain the refrigerant at a predetermined temperature. The water cooling capacitor 20 and the cooling coil 40 are included as the first cooling means, and the compressor 30 is included as the second cooling means.

The cooling coil 40 has a heat exchange structure using a copper tube and a fin as a portion in which cooling air is generated, like a fan coil unit. The copper tube and the fins adopt mechanical expansion method to increase the adhesion of the bonded part and increase the heat permeability coefficient to achieve high efficiency. In consideration of the fact that the heat exchange structure significantly affects the cooling capacity, it is preferable to laminarize the flow of air to the outside while keeping the flow of the refrigerant smoothly inside.

At this time, the second cooling means of the present invention performs a cooling cycle using the R-22 refrigerant. Cooling cycles with R-22 (HCFC's) refrigerants are more efficient and require less initial investment. Modern centrifugal chillers use one of R-22, R-123, and R134a refrigerants, of which R-22 is suitable for small size and very large capacity.

In this way, the present invention allows the conventional chiller function to be replaced by a method using a predetermined refrigerant, and enables independent individual cooling.

In addition, according to the present invention, a fan motor 50 for causing the flow of cooling air is installed on the vent holes 10a and 10b of the one side. The fan motor 50 is disposed between the vent 10b through which cold air is discharged and the cooling coil 40.

Basic design requirements such as selecting suitable bearings, maintaining design tolerances, lightening the moving parts and maintaining dynamic / static balance are important for the quiet operation of rotating equipment such as fan motor 50 and compressor 30 with low noise and low vibration. However, measures to attach the sound absorbing material to the inner surface of the casing 10 should also be reflected.

In addition, according to the present invention, an overflow sensor is provided in the drain 60 to detect the water level generated in the casing 10. The drain 60 is mounted at the bottom of the cooling coil 40 where moisture is generated. An overflow sensor provided at the upper end of the drain 60 detects the water level stored.

On the other hand, although not shown in the drawing, the controller 30 is electrically connected to the compressor 30, the fan motor 50, the overflow sensor, and the like to input and output signals and perform control. The controller is linked to complete safety devices such as O.C.R and H.P.S, and also adopts low voltage control method to fundamentally prevent electric shock due to high voltage.

2 is an exemplary view showing an installation state of the device according to the present invention.

Casing 10 accommodated the main function of the present invention is fixed to the ceiling using a spring hanger (S), and connects the duct (D) to both sides of the vent (10a) (10b) to communicate with the room. The lower part of both ducts (D) in contact with the room through the diffuser (F) to minimize the flow resistance due to the intake and discharge of air.

As such, the device of the present invention can be embedded to be embedded in the ceiling, and thus does not interfere with indoor space utilization.

The present invention is connected to the cooling tower (A) or the condensing unit (B) in accordance with the application of a water-cooled or air-cooled outdoor unit. In any of the above cases, the pipe is connected to the water cooling capacitor 20 side of FIG. 1. In the case of the water cooling type, the cooling tower (A) cools the cooling water passing through the water cooling condenser 20 to a predetermined temperature as a cooling means using water splash and air, and the water cooling condenser 20 allows the refrigerant to be cooled to a predetermined temperature. The heat exchange using the cooling water is performed, and the cooling coil 40 performs the heat exchange using the refrigerant so that the indoor air is maintained at a predetermined temperature. In the case of air cooling, the condensing unit B cools the refrigerant having passed through the cooling coil 40 to a predetermined temperature using air, and the cooling coil 40 performs heat exchange using the refrigerant to maintain indoor air at a predetermined temperature. Perform.

In case of using R-22 as refrigerant, it is possible to control completely independently by combining with condensing unit (B) in a 1: 1 ratio. There is no need to be careful.

Accordingly, the chiller and the cooling tower should be operated even when only a small number of offices in the building are operated. However, according to the device of the present invention, only the cooling tower A or the condensing unit B is operated.

This independent control can be controlled centrally or can be controlled in each office by installing a separate switch. Of course, it can also be automatically turned on or off in conjunction with the power supply or the lock.

According to the above configuration and operation, the present invention can be applied to both central and individual cooling methods with a small initial investment cost, the cooling efficiency is maintained high with low maintenance cost, and it can be mounted on the ceiling to maximize the use of indoor space. have.

The features of the present invention, which can be used throughout the day and use only a certain portion of the night, contribute to the nation's energy policy as well as to reduce individual expenses.

It is apparent to those skilled in the art that the present invention is not limited to the embodiments described, and that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, such modifications or modifications will have to belong to the utility model registration claims of the present invention.

Claims (2)

In a device connected to an outdoor cooling tower or a condensing unit to cool indoor air: A casing (10) having a pair of vents (10a) (10b) to be piped to the ceiling of the room; First cooling means connected to the cooling tower or the cooling water and mounted inside the casing 10 to circulate the cooling water; Second cooling means for performing heat exchange using cooling water to maintain the refrigerant at a predetermined temperature; A fan motor 50 installed on one side of the vent holes 10a and 10b to induce the flow of cooling air; And Integrated air conditioning module for individual cooling of the building, characterized in that it comprises a drain (60) for storing and discharging the water generated in the casing (10). The method of claim 1, The second cooling means is an integrated air conditioner module for individual cooling of the building, characterized in that to perform a cooling cycle using the R-22 refrigerant.