KR101693378B1 - Fan coil unit with structure of sopt blowing - Google Patents

Abstract

The present invention relates to a fan coil unit having a local air blowing structure, which is appropriate for cooling and heating of a large space by increasing a flow velocity and an air blowing distance by locally discharging hot air and cold air while discharging the hot air or the cold air for cooling and heating. The fan coil unit includes: a housing having an inlet in which air flows and an outlet which the air flowing inside is discharged through into an indoor space; a heat exchanger connected to an inflow pipe and an outflow pipe by being embedded in the housing and allowing the air flowing into the inlet to exchange heat with a thermal medium while circulating the thermal medium; a blower operating by a power supply by being embedded in the housing and supplying the air to the outlet by sucking the air through the inlet; and a local air blowing member installed in the outlet of the housing and expanding the air blowing distance by increasing the flow velocity of the hot air or the cold air by the blower.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a fan coil unit having a local airflow structure,

The present invention relates to a fan coil unit, and more particularly, to a fan coil unit having a local air blowing structure suitable for cooling and heating a large space by locally discharging hot air or cold air while discharging cold air or warm air for cooling and heating, Fan coil unit.

Generally, the fan coil unit is one of the central cooling / heating facilities. The fan coil unit receives cold water or hot water from a chiller or a boiler, passes the heat exchanger, And air is discharged to the room by a blower to perform cooling or heating.

Such a fan coil unit is manufactured as a stand-alone type, a stand type, a tower type, or a ceiling type depending on the installation type, and discharges hot air or cold air.

For example, there is a fan coil unit proposed in Korean Patent Registration No. 10-1147406 as a ceiling fan coil unit.

1, the air is sucked into the suction unit 10 formed at the center of the case 1 to heat or cool the air through the internal heat exchanger, (20) to discharge hot air or cold air.

However, the fan coil unit of the prior art as described above is suitable for cooling and heating a place having a relatively limited space, such as a home or an office, because the blowing range of warm air or cold air discharged to the discharge unit 20 is limited, There is an inadequate limit for heating and cooling.

That is, in order to cool a large space such as a factory, a large exhibition hall or an auditorium, the blowing distance of warm air or cold air must be long. However, the prior art has a problem that the blowing distance can not be extended due to blowing hot air or cold air only through the blowing pressure of the blower have.

On the other hand, when the conventional fan coil unit reaches the set temperature, the flow of the heat medium circulating in the heat exchanger is cut off. In this case, when water is used as the heat medium, the water is frozen in the winter season.

Korean Patent Registration No. 10-1147406

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the prior art described above, and it is an object of the present invention to provide an air conditioner capable of expanding a blowing distance of hot air or cold air by reducing a cross- It is an object to provide a fan coil unit having a local airflow structure.

It is another object of the present invention to provide a fan coil unit having a local air blowing structure capable of sterilizing pollutants and germs contained in hot air or cold air while generating vortexes in discharged hot air or cold air, to be.

It is another object of the present invention to provide a fan coil unit having a local air blowing structure capable of preventing the heating medium from being frozen by continuing the circulation of the heating medium even when the heating medium circulating in the heat exchanger is blocked as the room temperature is set in the winter season It is another purpose.

In order to achieve the above object, a fan coil unit having a local air blowing structure according to the present invention is a fan coil unit that is supplied through a water inlet pipe in a freezer or a boiler, exchanges heat through a heating medium returned through a water outlet pipe, Wherein the fan coil unit comprises: a housing having an inlet through which air is introduced and an outlet through which the introduced air is discharged into the room; A heat exchanger connected to the water inlet pipe and the water outlet pipe in a state of being built in the housing, for circulating the heat medium and exchanging the air introduced into the inlet with the heat medium to provide the heat to the outlet; A blower installed in the housing and operated by a power source to suck air into the inlet and supply the air to the outlet; And a local air blowing member installed at an outlet of the housing to increase a blowing distance while increasing a flow rate of warm air or cool air by the blower.

For example, the local air blowing member may include a venturi nozzle which is installed to be capable of flowing in the discharge port, sets a blowing direction while discharging hot air or cold air, and increases a flow rate while reducing a sectional area of a flow path through which hot air or cold air is discharged; And a nozzle controller for controlling the discharge direction of the hot air or the cold air while flowing the venturi nozzle.

For example, the nozzle controller may include: a hinge shaft for rotatably coupling the Venturi nozzle to the housing; The Venturi nozzle is tightly attached to one end of the venturi nozzle while being stretched in length by a power source to rotate the venturi nozzle about the hinge axis while pressing one end of the Venturi nozzle, A presser which allows the opposite direction rotation of the venturi nozzle while the length is contracted to release the pressure; And an elastic body provided on the housing at the other side of the pressurizer and providing an elastic force while being in close contact with the other end of the venturi nozzle.

The local air blowing member may further include a vortex sterilizing member for decomposing contaminants and bacteria contained in the hot air or the cold air while generating a vortex in hot air or cold air discharged through the Venturi nozzle.

For example, the vortex sterilizing member may include at least one sterilizing lamp installed in the flow path of the Venturi nozzle to generate a vortex while interfering with discharged hot air or cold air, and to sterilize hot air or cold air while emitting light by a power source; And a photocatalyst coated on the inner circumferential surface of the venturi nozzle to decompose contaminants or bacteria through a catalytic reaction by light of the sterilizing lamp.

Further, the present invention may further comprise a bypass member for continuing circulation of the heat medium while bypassing the heat exchanger before the heat medium is supplied to the water outlet pipe.

For example, the bypass member may include: a bypass pipe communicating the water inlet pipe and the water outlet pipe with the heat exchanger removed; And a bypass flow rate regulator provided in the bypass pipe so as to be openable and closable and controlling the flow rate of the heat medium while opening and closing the bypass pipe.

The heat exchanger may further include: a coin pipe for discharging the heat medium supplied from the water inlet pipe to the water outlet pipe in a zigzag fashion; And a radiating fin which is disposed in a laminated state while being fixed in a penetrating state to the coin pipe and radiates heat or cool air of the coin pipe, and is coated on the surface of the coin pipe or the radiating fin, Additional photocatalysts that degrade materials or bacteria; And an additional germicidal lamp disposed adjacent to the coin tube coated with the additional photocatalyst or the radiating fin to cause a catalytic reaction of the additional photocatalyst while emitting light by a power source.

According to the fan coil unit having the local air blowing structure according to the present invention, as the venturi nozzle constituting the local air blowing member reduces the sectional area of the flow passage while discharging hot air or cold air, the flow velocity of hot air or cold air increases, It is suitable for cooling and heating a large space such as a factory, an auditorium, or a gymnasium. Further, since the blowing direction of the venturi nozzle is controlled by the nozzle controller, it is possible to accurately blow warm air or cold air to a set position.

Further, according to the present invention, since the sterilizing lamp constituting the vortex generating member interferes with the warm air or the cold air to generate the vortex, the hot air or the cold air can be discharged more smoothly and sterilized by the light of the sterilizing lamp. Since the photocatalyst is coated on the inner circumferential surface and catalytic reaction is caused by the light of the sterilizing lamp, there is a hygienic advantage because the pollutants of warm air or cold air are decomposed.

Also, in the present invention, even if the supply of the heating medium to the heat exchanger is interrupted, the bypass flow regulator constituting the bypass member continues the circulation of the heating medium through the bypass pipe, so that the freezing of the heating medium supply line can be prevented in the winter season.

1 is a front view showing a fan coil unit according to the prior art;
2 is a front view showing a fan coil unit having a local airflow structure according to the present invention;
3 is a longitudinal sectional view showing a fan coil unit having a local airflow structure according to the present invention.
Figure 4 is a partial enlarged view of Figure 3;
5 is a partially enlarged view showing another embodiment of the present invention.
6 is a configuration diagram showing a heat exchanger of the present invention.

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.

Embodiments in accordance with the concepts of the present invention can make various changes and have various forms, so that specific embodiments are illustrated in the drawings and described in detail in this specification or application. It is to be understood, however, that it is not intended to limit the embodiments according to the concepts of the present invention to the particular forms of disclosure, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between. Other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises ", or" having ", or the like, specify that there is a stated feature, number, step, operation, , Steps, operations, components, parts, or combinations thereof, as a matter of principle.

2 and 3, the fan coil unit according to the present invention includes a housing 100, a heat exchanger 200, and a heat exchanger 200 as shown in FIGS. 2 and 3, The blower 300 and the local air blowing member 400.

2, the housing 100 includes an inlet 110 through which air is introduced and a communication space through which the introduced air moves. The inlet 110 is formed in the interior of the fan coil unit And an outlet 120 for discharging the heat-exchanged air to the room.

Here, although the housing 100 is shown as a ceiling shape as shown in FIG. 2, it may be manufactured in various forms such as a stand type, a standing type, and the like, unlike the illustrated embodiment.

The inlet 110 is formed at the center of the housing 100 as shown in the drawing, and the indoor air flows into the housing 100 according to the operation of the blower 300, which will be described later.

The inlet 110 may be provided with an unillustrated filter member so that the foreign substances contained in the inlet air may be filtered while being filtered.

The heat exchanger 200 is a component for cooling or heating the air introduced into the inlet 110 by a blower 300 to be described later and discharging the air to the outlet 120.

3, the heat exchanger 200 is connected to a boiler or a freezer (not shown) through a water inlet pipe 210 and a water outlet pipe 220, and is connected to a heat exchanger Exchanges heat with the cool air to cool or heat the air introduced into the inlet 110.

6, the heat exchanger 200 includes a coin pipe 250 for passing the heat medium supplied from the water inlet pipe 210 in a staggered manner, and a coin pipe 250 for passing through the coin pipe 250, And heat exchange fins of the heat medium or cool air can be exchanged with air while moving the air between the heat dissipation fins 260. [

The blower 300 is a member that is installed in the housing 100 and supplies a vacuum for introducing air into the inlet 110 and discharges the heat-exchanged air to the outlet 120, And is installed in the interior of the housing 100 in an adjacent state to the heat exchanger 200 as shown in FIG. 2, and operates under the control of the controller. The air flows into the inlet 110 and is discharged to the outlet 120 .

The detailed configuration of the blower 300 is not limited, and a detailed description of the blower 300 will be omitted, since any configuration known in the art to which the present invention belongs may be applied.

The local air blowing member 400 is a component for increasing the blowing distance by increasing the flow rate of hot air or cold air discharged to the discharge port 120 by the blower 300.

The local air blowing member 400 may include a venturi nozzle 410 and a nozzle controller 420 as shown in FIG.

2 and 3, the venturi nozzle 410 is installed in a state capable of flowing in the discharge port 120, and is a component for discharging hot air or cold air.

4, the venturi nozzle 410 is made of a hemispherical tube so that the cross-sectional area of the flow path through which hot air or cold air is discharged is gradually reduced in the discharge direction.

That is, as the sectional area of the passage through which the air is discharged becomes narrower, the venturi nozzle 410 increases the blowing distance while increasing the flow rate of the hot air or the cold air according to the Bernoulli principle.

The nozzle controller 420 is a component for controlling the discharge direction of the hot air or the cold air by flowing the venturi nozzle 410.

The nozzle controller 420 may include a hinge shaft 421, a pusher 422, and an elastic body 423 as shown in FIG. 4, for example.

4, the hinge shaft 421 is fixed to the housing 100 through the center of the venturi nozzle 410 to rotatably engage the venturi nozzle 410.

That is, the venturi nozzle 410 rotates about the hinge axis 421, and the discharge port rotates up and down in the drawing.

Although the hinge shaft 421 is formed as a single shaft and rotates the venturi nozzle 410 in the vertical direction, the venturi nozzle 410 may be formed in a plurality of ways to vertically rotate the venturi nozzle 410 It may be rotated to the left or right.

The pressurizer 422 is a component for pressing the one end of the venturi nozzle 410 to rotate the venturi nozzle 410 about the hinge axis 421.

4, the pusher 422 is in close contact with one end of the flange formed at the rear end of the venturi nozzle 410 while being housed in the housing 100, So that the venturi nozzle 410 is rotated.

That is, the pressurizer 422 extends the length of the venturi nozzle 410 in close contact with one end of the venturi nozzle 410 and rotates the venturi nozzle 410 about the hinge axis 421 while pressing the adhered portion, And is allowed to rotate in the opposite direction of the venturi nozzle 410 while being rotated.

The pusher 422 may be composed of any one of an actuator, a solenoid valve, and an oil / pneumatic cylinder that expands and contracts the rod by projecting and retracting the rod under the control of a controller.

4, the elastic body 423 is attached to the other end of the venturi nozzle 410 while being installed on the other side of the pressurizer 422, and provides an elastic force.

Specifically, when the length of the pusher 422 is extended, the elastic body 423 elastically supports the other end of the venturi nozzle 410 while being compressed. When the pusher 422 is contracted, the elastic body 423 is stretched through elastic force, The venturi nozzle 410 is rotated while the other end of the venturi nozzle 410 is pressed.

That is, the elastic body 423 rotates the venturi nozzle 410 up and down while forming a pair with the pressurizer 422.

When a plurality of hinge shafts 421 are formed, the pressurizer 422 and the elastic body 423 are installed around the venturi nozzle 410 to form a plurality of sets of venturi nozzles 410 to vertically rotate and horizontally rotate .

Meanwhile, the local air blowing member 400 may further include the vortex sterilizing member 430 as shown in FIG.

The vortex sterilizing member 430 is a constituent element for decomposing contaminants or bacteria contained in the hot air or the cold air while inducing vapors in the hot air or the cold air discharged through the Venturi nozzle 410 to induce a smooth discharge.

The vortex sterilizing member 430 may include a sterilizing lamp 431 and a photocatalyst 432 as shown in FIG.

As shown in the drawing, the sterilizing lamp 431 is installed in the discharge passage of the Venturi nozzle 410 to generate a vortex while interfering with warm air or cold air, and sterilizes hot air or cold air while emitting light such as ultraviolet rays by a power source.

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 sterilizing lamps 431 may be installed in a single unit as shown in FIG. 5, or alternatively, may be provided along a discharge channel of the venturi nozzle 410.

In addition, the sterilizing lamp 431 may be formed in an elliptical shape having a long axis in the air discharge direction, as shown in the cross-sectional view, so that vortex generation may be induced while enlarging the contact area with air.

The photocatalyst 432 is coated on the inner circumferential surface of the venturi nozzle 410 as shown in FIG. 5. The photocatalyst 432 is decomposed and decomposed into contaminants and bacteria contained in the air, Lt; / RTI >

Here, the kind of the photocatalyst is not limited, and any structure known in the art to which the present invention belongs may be adopted, for example, titanium dioxide (TiO ₂ ) photocatalyst.

Titanium dioxide (TiO ₂ ), also known as titanium dioxide or titanium dioxide, is an environmentally friendly material that has good acid resistance and alkali resistance and is harmless to the human body and converts various pollutants into harmless substances. Such titanium dioxide has a characteristic of being hydrophilic.

Specifically, when the titanium dioxide photocatalyst is an n-type semiconductor, when an ultraviolet ray (400 nm) is received, an electron and an electron hole are formed to produce hydroxyalcic acid (-OH) and superoxide having 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.

In addition, when light is irradiated, titanium dioxide reacts with one of the two oxygen atoms constituting H ₂ O in the air to generate a hydrophilic substance, and thus has a stain resistance to prevent adhesion of contaminants to the surface, (SELF-CLEANING) which allows the attached contaminants to be easily washed by water.

Meanwhile, the fan coil unit of the present invention may further include a bypass member 500 as shown in FIG.

The bypass member 500 is a component for continuing the circulation of the heat medium by bypassing the heat medium supplied to the heat exchanger 200 to the heat exchanger 200 by a boiler or a cooler not shown.

That is, when the indoor air reaches the set temperature, the bypass member 500 keeps the circulation of the heating medium even when the supply of the heating medium to the heat exchanger 200 is interrupted, thereby preventing the freezing of the heating medium to be.

The bypass member 500 may include a bypass pipe 510 and a bypass flow regulator 520 as shown in FIG.

The bypass pipe 510 communicates the water inlet pipe 210 and the water outlet pipe 220 with the heat exchanger 200 removed, as shown in FIG.

3, the bypass flow regulator 520 is installed at a connection portion of the bypass pipe 510, and controls the flow rate by opening and closing the bypass pipe 510 under the control of a controller (not shown).

The bypass flow regulator 520 may include a three-way valve installed at a connection portion between the bypass pipe 510 and the water inlet pipe 210 to control the circulation direction of the heating medium.

Here, the three-way valve is well known in the art to which the present invention belongs, and thus the detailed description thereof will be omitted.

In the meantime, the heat exchanger 200 described above easily fungal bacteria due to the humidity of the condensed water generated on the surface by cooling the air through the cool air of the coolant during cooling.

Accordingly, the heat exchanger 200 of the present invention may further include an additional photocatalytic agent 270 and an additional germicidal lamp 280 as shown in FIG. 6 to maintain antimicrobial activity.

The additional photocatalyst 270 is a component for decomposing contaminants or bacteria contained in the air while causing a catalytic reaction by light in the same manner as the above-mentioned photocatalyst. As shown in FIG. 6, And is coated on the surface or the surface of the radiating fin 260 to cause a catalytic reaction by the light of the additional sterilizing lamp 280 described later.

6, the additional sterilizing lamp 280 is installed adjacent to the coin tube 250 or the radiating fin 260 to emit light such as ultraviolet rays by a power source, And sterilize fungus or bacteria.

Accordingly, the heat exchanger 200 of the present invention is more hygienic because the occurrence of mold fungi and the habitat or the habit of other bacteria are prevented.

As described above, according to the fan coil unit of the present invention, since the venturi nozzle 410 constituting the local air blowing member 400 reduces the cross-sectional area of the flow passage while discharging hot air or cold air, The ventilation direction of the venturi nozzle 410 is controlled by the nozzle controller 420 so that the hot air or the cold air can be accurately blown to the set position. In addition, since the air flow direction of the venturi nozzle 410 is controlled by the nozzle controller 420, can do.

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: Housing
200: heat exchanger
210: inlet pipe
220: discharge pipe
250: coin tube
260: heat sink fin
270: Additional photocatalyst
280: Additional sterilization lamp
300: Blower
400: Local air blowing member
410: Venturi Nozzle
420: Nozzle controller
421: Hinge axis
422:
423: Elastomer
430: vortex sterilizing member
431: sterilization lamp
432: Photocatalyst
500: bypass member
510: bypass pipe
520: Bypass flow regulator

Claims (8)

A fan coil unit for supplying hot air or cold air while being heat-exchanged through heat or cold air of a heating medium supplied through a water inlet pipe from a refrigerator or a boiler and returning through a water outlet pipe,
A housing having an inlet through which air is introduced and an outlet through which the introduced air is discharged into the room;
A heat exchanger connected to the water inlet pipe and the water outlet pipe in a state of being built in the housing, for circulating the heat medium and exchanging the air introduced into the inlet with the heat medium to provide the heat to the outlet;
A blower installed in the housing and operated by a power source to suck air into the inlet and supply the air to the outlet; And
And a local air blowing member installed at an outlet of the housing to increase a blowing distance while increasing a flow rate of warm air or cold air by the blower,
The local air blowing member
A venturi nozzle which is installed to be able to flow in the discharge port and sets a blowing direction while discharging hot air or cold air and increases a flow rate while reducing a cross sectional area of a flow path through which hot air or cold air is discharged; And
And a nozzle controller for controlling the discharge direction of the hot air or the cold air while flowing the venturi nozzle,
Wherein the nozzle controller comprises:
A hinge shaft for rotatably coupling the Venturi nozzle to the housing;
The Venturi nozzle is tightly attached to one end of the venturi nozzle while being stretched in length by a power source to rotate the venturi nozzle about the hinge axis while pressing one end of the Venturi nozzle, A presser which allows the opposite direction rotation of the venturi nozzle while the length is contracted to release the pressure; And
And an elastic body provided on the housing at the other side of the pressurizer and providing an elastic force while being in close contact with the other end of the venturi nozzle,
The local air blowing member
Further comprising a vortex sterilizing member for decomposing contaminants or bacteria contained in the hot air or the cold air while generating a vortex in the hot air or the cold air discharged through the Venturi nozzle,
The vortexor member
At least one sterilizing lamp installed in the flow path of the venturi nozzle to generate a vortex while interfering with discharged hot air or cold air and sterilizing hot air or cold air while emitting light by a power source; And
And a photocatalyst coated on the inner circumferential surface of the venturi nozzle to decompose contaminants or bacteria through a catalytic reaction by light of the sterilizing lamp,
The sterilizing lamp comprises:
Wherein the fan coil unit has an elliptical cross section having a long axis in an air discharge direction.
delete delete delete delete The method according to claim 1,
Further comprising: a bypass member for continuously circulating the heat medium while bypassing the heat exchanger to the water outlet pipe before the heat medium is supplied to the heat exchanger.
The method of claim 6,
Wherein the bypass member
A bypass pipe communicating the water inlet pipe with the water outlet pipe while excluding the heat exchanger; And
And a bypass flow rate regulator provided in the bypass pipe so as to be openable and closable to control the flow rate of the heat medium while opening and closing the bypass pipe.
The method according to claim 1,
The heat exchanger
A coin pipe for discharging the heat medium supplied from the water inlet pipe to the water outlet pipe while flowing in a zigzag fashion; And
And a heat dissipating fin disposed in a laminated state while being fixed in a penetrating state to the coin tube to dissipate heat or cool air in the coin tube,
An additional photocatalyst coated on the surface of the coin pipe or the radiating fin to decompose contaminants or bacteria through a catalytic reaction by light; And
Further comprising an additional germicidal lamp disposed adjacent to the coin tube coated with the additional photocatalyst or the radiating fin to cause a catalytic reaction of the additional photocatalyst while emitting light by a power source, Respectively.

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