KR100353270B1 - Construction of air conditioner - Google Patents

Abstract

The present invention relates to an air conditioner structure, comprising a water temperature control unit 340 for supplying cold water or hot water, and air sucked by forming a water film by spraying cold water or hot water provided from the water temperature control unit 340. Cold and hot water injection pipe 310 for adsorbing and filtering the foreign matter, the cold water or hot water sprayed from the cold and hot water injection pipe 310 is in contact with the surface of the heat exchanger 400 for direct heat exchange with the filtered or cooled air, and the In the air conditioner comprising a blower 500 for supplying air cooled or heated by the heat exchanger 400 in place in the room, the heat exchanger 400 is injected from the hot water injection pipe 310 or A plurality of heat exchange plates 410 and 440 having hot water directly surface-contacted and cooled or heated are stacked at intervals by the coupling parts 430 and 450. The present invention is to spray the cold water or hot water to adsorb dust, odors and bacteria to clean the air, and to make the heat and heat exchange with the air by directly contacting the cold water or hot water to the heat exchange plate to cool and warm In addition to maintaining the proper humidity in the room, manufacturing cost and maintenance costs, and energy can be saved, and its life can be extended.

Description

Air conditioner structure {Construction of air conditioner}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner, and more particularly, to an air conditioner structure capable of effectively controlling the temperature of air from which dust and the like are removed in an air conditioner for heating and cooling.

In general, an air conditioner (i.e., an air conditioner or a hot air fan) is used to control the temperature of the room, and also to use an air-cleaner to breathe fresh and clean air at all times for modern people suffering from pollution. Humidifiers are used to control the appropriate humidity in the room.

1 is a diagram showing a general air conditioner, which includes a dry filter 100 for filtering suspended matter in air; A compressor 110 for compressing the circulated gas refrigerant into a liquid phase; A cooling tube 121 for vaporizing the refrigerant compressed from the compressor 110; A cooling fin 122 attached to the outside of the cooling tube 121 to heat-exchange the cooling heat generated from the cooling tube 121 with air; It is composed of a blower 130 for supplying the cold air heat exchanged by the cooling fin 122 in place.

First, various suspended substances and dusts in the air are filtered by the dry filter 100 (generally formed into a mesh) and are supplied to the cooling coil 120.

The flow of air is an artificial air flow path is formed by the blower 130 is operated.

Therefore, the air filtered by the dry filter 100 suspended matter and dust is heat-exchanged by the cooling coil 120 to provide the cool air toward the blower 130, the process will be described as follows.

The compressor 110 compresses the gaseous refrigerant circulated by the refrigeration cycle to change into a liquid refrigerant, and the liquid refrigerant is vaporized by being supplied to the cooling coil 120.

At this time, the cooling heat generated as the refrigerant is evaporated is transferred to the cooling fin 122 attached to the outside of the cooling tube 121 to exchange heat with air provided from the dry filter 100 side to cool the air blower 130 Provided.

Therefore, the air cooled by the blower 130 is supplied to the appropriate place in the room.

However, the following problem occurs when using such an air conditioner.

First, the dry filter 100 does not filter out various harmful substances, harmful gases, bacteria, and the like by filtering only suspended substances and dust, and thus is almost unprotected, which is not beneficial to health.

Using a separate air purifier for this purpose is a waste of cost.

Secondly, in the case of the cooling coil 120, the cooling fins 122 are attached to easily exchange heat of the cooling heat generated by the cooling tube 121 with the incoming air, and the cooling tube 121 uses a copper tube. In addition, the cooling fin 122 used only aluminum.

As a result, the use of expensive copper tubes and aluminum sheets has caused a problem of cost increase.

Third, in the case of using such an air conditioner in a humid place, moisture is condensed by cold cooling heat at the contact portion between the cooling tube 121 and the cooling fin 122.

Therefore, the corrosion occurs in the contact portion due to the condensed moisture, there is a problem that the cooling heat transfer from the cooling tube 121 to the cooling fin 122 is not smooth, reducing the cooling efficiency.

Fourth, since a plurality of cooling fins 122 must be attached to the cooling tube 121 one by one, it is not only easy to manufacture, but also has no benefit in manufacturing time.

Fifth, there is a problem in that the cost burden is increased by using a separate humidifier in the case where you want to humidify indoors.

Accordingly, in order to solve the above problems, air conditioners using a wet cooling method are used in medium and large facilities or places where a large amount of suspended substances or dusts are generated (for example, textile mills), which will be described in detail with reference to FIG. Explain.

2 is a view showing an air conditioner using a general wet filter, and a dry filter 200 for filtering suspended matter in the air; A cooler 210 for producing cold water; A transfer pipe 220 for transferring cold water generated by the cooler 210; A water film forming unit 230 arranged and arranged in a plurality of stages to form a water film by spraying cold water transferred from the transfer pipe 220 to a flow path of air to perform heat exchange with the air and wet filtration; It is composed of a blower 240 for supplying to the place of the cold air chamber passing through the water film.

Explain this.

First, the air sucked toward the dry filter 200 is filtered by various dry matters and dust and the like by the dry filter 200 and supplied to the water film forming unit 230.

Therefore, air suspended and dust filtered by the dry filter 200 is directly provided to the blower 240 by directly exchanging heat and contaminants by the water film formed by the water film forming unit 230. Is as follows.

The cooler 210 cools the water by lowering the water to a predetermined temperature and transfers the water to the destination to be sprayed through the transport pipe 220.

The cold water transferred through the transfer pipe 220 is provided to the water film forming unit 230.

The water film forming unit 230 is provided with a plurality of nozzles 232 in one injection pipe 231 to form a water film in the space by spraying the cold water transferred from the transfer pipe 220.

Therefore, the air is passed through the formed water film to directly exchange heat with cold water to generate cold cold air, and the suspended solids and dust in the air are similarly filtered together with the water particles forming the water film.

In addition, the number of the cold and hot water spray pipes should be adjusted according to the installation place and the degree of pollution in the room. Allow several passes to cool.

That is, heat exchange is performed in each water film while passing through the water film many times.

However, such a wet air conditioner has the following problems.

First, in order to cool the air to a desired temperature, the installation space is greatly increased since the air must be directly heat-exchanged with the water film several times by providing the water film forming unit 230 of multiple stages.

Second, since the water film must be formed in multiple stages, a large amount of cold water is required, and thus a lot of energy is consumed to generate the cold water.

Thirdly, the air passing through the water film contains a large amount of water droplets, and thus, there is a problem that comfortable cooling is not achieved in the summer when the humidity is high, and it is limited to only a textile factory requiring high humidity. In the same conventional apparatus, not only the structure of the heat exchanger that controls the temperature of the air from which dust is removed is complicated, but there is a disadvantage that the heat exchange of the air cannot be made effectively.

Therefore, in order to solve this problem, the present invention sprays cold water or hot water to adsorb dust, odors and bacteria to perform air cleaning, and furthermore, the cold water or hot water directly contacts the heat exchange plate to exchange heat with air. It is an object of the present invention to provide an air conditioner structure in which cooling and warming are effected effectively.

1 is a view showing the structure of a typical air conditioner.

2 is a view showing a conventional air washer type wet air conditioner.

3 is a view showing an air conditioner according to the present invention.

4 is a detailed view of the heat exchanger of FIG. 3.

5 is a cross-sectional view of the coupling portion of FIG.

6 shows air flow in a heat exchanger.

<Description of the code | symbol about the principal part of drawing>

300: dry filter 310: cold and hot water injection pipe

311: spray nozzle 320: hot and cold water pump

330: transfer pipe 340: water temperature control unit

350: filter 360: pump

370: drip tray 400: heat exchanger

410,440 heat exchange plate 411 bend

a, b: slope 420: runoff

430,450: coupling portion 431,451: insertion protrusion

432,452 Taper 433,453 Insertion hole

500: blower

The air conditioner structure of the present invention for achieving the above object is, as shown in Figure 3, the water temperature control unit 340 for supplying cold water or hot water; Cold and hot water injection pipe 310 for adsorbing and filtering foreign matter contained in the air sucked by forming a water film by spraying cold water or hot water provided from the water temperature control unit 340; A heat exchanger 400 for directly exchanging heat with the filtered air by cooling or heating the cold or hot water sprayed from the cold / hot water injection tube 310 by surface contact; Characterized in that it comprises a blower 500 for supplying air cooled or heated by the heat exchanger 400 in place in the room.

In addition, the drip tray 370 for collecting the water dropped from the cold and hot water injection pipe 310 and the heat exchanger 400; A filter 350 for filtering foreign matter contained in the water collected by the drip tray 370 and re-supplying the water temperature control unit 340; Cold water or hot water provided from the water temperature control unit 340 is configured to include a cold and hot water pump 320 to be pumped into the cold and hot water injection pipe 310 with the injection force.

On the other hand, the heat exchanger 400 is configured by stacking a plurality of heat exchange plates 410 and 440 spaced apart by the coupling parts 430 and 450 in which the cold or hot water injected from the cold and hot water injection pipe 310 is directly contacted with the surface. do.

The heat exchange plate 410 has a bent portion 411 bent at a predetermined angle, the inclined surfaces (a, b) formed by the bent portion 411 is formed by repeating a predetermined number of times.

The heat exchange plate 410 has a flow channel 420 is formed on the surface in order to increase the residence time of the cold water or hot water in contact with the surface.

The coupling parts 430 and 450 are formed in a fitting structure.

The present invention configured as described above will be described in detail with reference to FIGS. 3 to 6.

First, the operation to perform cooling is as follows.

When the blower 500 is driven, suction force is generated and air is sucked into the dry filter 300 so that suspended matter in the air is first filtered.

Since the air in which the suspended solids are filtered to some extent by the dry filter 300 includes fine dust or bacteria, filtration is performed to remove them by wet filtering.

Of course, wet filtering may be performed immediately without using the dry filter 300.

To this end, the water temperature control unit 340 generates cold water and provides it to the cold / hot water pump 320 through the transfer pipe 330, and the cold / hot water pump 320 performs the pumping so that the cold water has the injection force. .

Cold water having a suitable injection force by the cold and hot water pump 320 is provided to the cold and hot water injection pipe 310 is injected through the injection nozzle 311 to form a water film, the injection nozzle 311 is a cold and hot water injection pipe 310 ) Is provided in plurality, and has a structure capable of forming a water film.

In other words, rather than simply spraying cold water to form a film by cold water with the spray to filter out fine dust and bacteria.

At this time, since the water film formed by the injection nozzle 311 is in a cold state, air is directly passed through it so that direct heat exchange is performed.

Accordingly, the cold air is provided to the heat exchanger 400, and the cold water injected from the cold / hot water injection pipe 310 is sprayed into the heat exchanger 400 to cool the heat exchanger 400 so as to cool the air secondaryly. Will be done.

Secondary cooling by the heat exchanger will be described in detail with reference to FIGS. 4 to 6.

As illustrated in FIG. 4, the heat exchanger 400 is configured by stacking a predetermined number of heat exchange plates 410 and 440 having a predetermined width at a predetermined interval, and cooling or cooling the number of the heat exchange plates 410 and 440 is stacked. The number may vary depending on the volume and temperature and humidity conditions of the room.

That is, if the indoor volume to be cooled is narrow, it is possible to reduce the width of the heat exchanger plates 410 and 440 or reduce the number of stacked layers. On the contrary, if the indoor volume to be cooled is wide, the width of the heat exchanger plates 410 and 440 is increased. This can be done by increasing the number of layers or increasing the number of stacked layers.

For example, the width and the number of stacked heat exchange plates 410 and 440 may be parallel at the same time, which may be elastically variable according to the volume of the room.

The material of the heat exchange plates 410 and 440 is preferably a metallic material which is excellent in thermal conductivity and does not corrode. For example, a material coated with an aluminum plate to prevent corrosion may be used. May be used.

Therefore, the material used is not particularly limited and various materials can be easily used.

On the other hand, the heat exchange plate 410, 440 has a bent portion 411 bent at a predetermined angle, the inclined surfaces (a, b) formed by the bent portion 411 is formed by repeating a predetermined number of times, which is a heat exchange plate ( Even if the areas of the 410 and 440 are the same, the bending is possible to extend the time for the air to pass through the gap between the heat exchange plates 410 and 440.

This is to extend the heat exchange time by increasing the residence time of air between the heat exchange plates (410,440) to increase the cooling efficiency.

In addition, the flow path 420 is formed on the surfaces of the heat exchange plates 410 and 440 so that the cold water sprayed from the cold / hot water injection pipe 310 may be in contact with the surface for a longer time.

Thus, the flow channel 420 is formed in the form of the corrugation is applied to the heat exchange plate (410,440) in the direction of the flow of air, and has a slope so that the cold water condensed on the surface does not immediately fall down the flow channel 420 Flow along the elongated heat exchange time with the heat exchange plates (410,440) becomes long.

As a result, as shown in FIG. 6, air flows between the plurality of stacked heat exchange plates 410 and 440 to exchange heat with the heat exchange plates 410 and 440, and the inclined surfaces a and b formed by the bent portion 411. By increasing the residence time of the air increases the heat exchange efficiency.

In addition, the residence time of the cold water condensed by the flow channel 420 is long, and the contact time with the air as well as the heat exchange plates 410 and 440 is increased, thereby increasing heat exchange efficiency.

At this time, the cooling season is the summer when the temperature and humidity are high, so cooling as well as dehumidification should be performed.

Therefore, when the heat exchange plates 410 and 440 are cooled by surface contact with cold water, the surrounding moisture condenses on the heat exchange plates 410 and 440 to have a dehumidifying effect.

Meanwhile, the stacked structures of the heat exchange plates 410 and 440 are coupled to each other at regular intervals between the heat exchange plates 410 and 440 by fitting structures as shown in FIG. 5. 430 protrudes, and a space portion is formed therein so that the insertion protrusion 451 of the coupling portion 450 of the other heat exchange plate 440 can be press-fitted and coupled.

In this case, the coupling parts 430 and 450 may have a taper 432 formed at an intermediate portion thereof to maintain a gap between the heat exchange plates 410 and 440. When the insertion protrusion 451 is inserted into the coupling hole 433, the taper ( 452) prevents further insertion and always keeps the interval constant.

Therefore, the heat exchanger plates 410 and 440 are always kept constant by the fitting structure.

The cool air that has passed through the heat exchanger 400 is supplied to a place in the room by the blower 500 to cool the room.

In addition, the cold water sprayed from the cold and hot water injection pipe 310 and the cold water dropped from the heat exchanger 400 is collected in the drip tray 370 located below the water is reused, the water collected in the drip tray 370 Since the water is cooled to some extent, it can be easily cooled without consuming a large amount of energy during subsequent re-cooling, thereby saving energy and reusing water.

Therefore, the water collected in the drip tray 370 is supplied to the filter 350 by the pump 360, the filter 350 is provided to the water temperature control unit 340 to filter out various foreign matter contained in the water. do.

The water temperature control unit 340 cools the provided water to circulate the cooling cycle as described in the above process.

Next, the case of warming the room will be described.

Since the basic operation process is the same as the cooling process, it will be described based on its functional aspects.

The hot water heated from the water temperature control unit 340 is supplied to the cold / hot water injection pipe 310 by the cold / hot water pump 320 to form a water film by the hot water to filter dust or bacteria and to perform primary heat exchange with air. Will be done.

In addition, the sprayed hot water is provided to the heat exchanger 400 is a secondary heat exchange with the air, the steam is generated during the heat exchange, the humidifier is supplied to the room with the warmth by the blower 500 separate humidifier Humidity can be added to the room without using.

Since the recycle cycle of the water collected from the cold / hot water injection pipe 310 and the heat exchanger 400 by the drip tray 370 is the same as the cooling time described above, the description thereof will be omitted.

On the other hand, the theoretical heat exchange of the surface injection method of the heat exchanger according to the present invention will be described as follows.

In general, the heat transfer amount of the heat exchanger can be calculated as shown in Equation 1 below.

Therefore, in the present invention, the heat transfer area F or the temperature difference between the material to be cooled (air) and the cooling material (cold water) as the heat passing rate (K) increases when the heat transfer rate (Q) is obtained by directly exchanging air and cold water. The value of can be reduced, so it is economical in terms of energy consumption.

Referring to the heat transfer area (F), in the case of the conventional cooling pipe system by increasing the number of cooling fins to increase the surface area (that is, the heat transfer area) to increase the heat exchange efficiency with air, but it is expensive On the other hand, in the present invention, the surface area can be increased by reducing the particles of the water film sprayed into the air, that is, the particles of water droplets, so that the burden on the heat transfer area is reduced.

The difference in temperature between the material to be cooled (air) and the material to be cooled (cold water) is explained. In the conventional cooling tube system, in order to reduce the temperature difference between the material to be cooled and the material to be cooled, the flow rate of the object to be cooled or the flow rate of the cooling material is reduced. The flow rate of the material to be cooled should increase the flow rate and the flow rate of the cooling material when fixed to 3m / sec, which is the use range of the existing air conditioner, but is extremely limited because the cooling material flows into the cooling tube.

However, in the case of the present invention, since the cold water is directly sprayed on the air side, an increase in the flow rate and the flow rate can be easily achieved, and there are also fewer restrictions.

Therefore, the increase in flow rate can increase the logarithmic mean temperature difference between the material to be cooled and the cooling material, and is effective and economical in reducing the temperature difference between the material to be cooled and the cooling material.

In particular, since the energy consumed when the room temperature is lower than the energy consumed when the room temperature is increased, the efficiency of the cold water is maximized by direct heat exchange with air.

Thus, the air conditioner of the present invention has the following effects.

1. By directly exchanging cold or hot water with air, the temperature of the air can be easily set to the desired target, and the air can be cleaned by water film, which is economical in terms of energy consumption and cost.

2. The heat exchanger with laminated heat exchanger plate can be used in a narrow space because it is not bulky by performing heat exchange with the maximum residence time of air in the heat exchanger.

3. Dehumidification and humidification can be performed by the selective use of cold or hot water, so it is possible to always maintain comfortable humidity in the room.

4. Waste of water can be reduced by filtering and reusing the wet filtered and heat exchanged water.

5. The air conditioner having the functions of cooling and warming can be implemented relatively inexpensively.

Claims (6)

Water temperature control unit 340 for supplying cold water or hot water, and cold and hot water injection pipe for adsorbing and filtering foreign matter contained in the air sucked by forming a water film by spraying the cold water or hot water provided from the water temperature control unit 340 ( 310, a heat exchanger 400 that directly cools or heats the surface of the cold or hot water injected from the cold / hot water injection pipe 310 by heat contact with the filtered air, and is cooled or heated by the heat exchanger 400. In the air conditioner comprising a blower (500) for supplying air in place in the room, The heat exchanger 400 is formed by stacking a plurality of heat exchange plates 410 and 440 spaced apart by the coupling parts 430 and 450 in which the cold or hot water sprayed from the cold and hot water injection pipe 310 is directly in surface contact with each other. Air conditioner structure delete delete The method of claim 1, wherein the heat exchange plate 410 has a bent portion 411 bent at a predetermined angle, characterized in that the inclined surfaces (a, b) formed by the bent portion 411 is formed by repeating a predetermined number of times Air conditioner structure. The air conditioner structure according to claim 1, wherein the heat exchange plate (410) has a flow passage (420) formed on a surface of the heat exchange plate (410) to increase the residence time of the cold water or the hot water in contact with the surface. The air conditioner structure according to claim 1, wherein the coupling part (430, 450) is formed in a fitting structure.