KR100580272B1 - Air-conditioner using heat of condensation - Google Patents

Abstract

The present invention relates to an energy-saving air conditioner using heat of condensation, the configuration is simple and easy to manufacture, low production cost, as well as having a plurality of condensers, one condenser is installed inside the vaporized humidifier more By making it simple, it is an object of the present invention to provide an energy-saving air conditioner using condensation heat not only easy to manufacture according to the design but also low in manufacturing cost.

The present invention for achieving the above object, a predetermined space is formed therein, the main duct to be sucked back to the room air and the outside air is sucked into the room; Cooling comprising a compressor, a first condenser connected to the compressor, a second condenser connected to the first condenser, an expansion valve and an evaporator (cooling coil) selectively connected to the first condenser or the second condenser. Means; A vaporized humidifier installed in the main duct, in which humidifying water is injected according to the operation of the pump, and one of the condensers installed; Is installed in the main duct, heating means for raising the temperature of the air passing through the main duct; The cooling means, the first condenser and the second condenser is connected in series, the second condenser The expansion valve is also connected in series, and the portion connecting the second condenser and the expansion valve is connected to the first condenser again, characterized in that the three-way valve is installed at this connection portion.

Air conditioner, air conditioner, humidification

Description

Energy-saving air conditioner using condensation heat {Air-conditioner using heat of condensation}

1 is a perspective view showing a conventional vaporized humidifier configuration.

Figure 2 is a block diagram showing an air conditioner previously filed in the applicant of the present invention.

3 is a perspective view showing the configuration of the vaporized humidifier applied to FIG.

Figure 4 is a block diagram showing an air conditioner according to the present invention.

5a to 5c are perspective views showing embodiments of an evaporative humidifier applied to an air conditioner according to the present invention.

<Description of the symbols for the main parts of the drawings>

11: main duct 20: cooling coil (evaporator)

21: carburetor 22: first condenser

25: expansion valve 50: three-way valve

60: check valve 100: vaporized humidifier

104: humidification element 200: second condenser

The present invention relates to an energy-saving air conditioner using heat of condensation, and more particularly, by allowing the condenser of the cooling means provided for controlling the temperature of the air conditioner and the vaporized humidifier supplied to control the humidity to make heat exchange. The present invention relates to an energy-saving air conditioner using condensation heat that improves humidification performance and improves cooling efficiency, but is simple in construction and low in production cost.

In general, in large buildings and factories, an air conditioner composed of a duct, a blowing fan, a cooling coil, and a heating coil is installed as a facility for controlling the temperature, humidity, and cleanliness of indoor air in an appropriate state. In the air conditioner installed, a lot of evaporative humidifiers, one of the humidification means, are installed in order to more actively control the humidity.

This is because indoor air has many waste stages, and if the indoor air is extremely dry, the health of the indoor residents and the comfort of the indoor environment may be lowered or the characteristics of the goods may be changed as compared with maintaining proper humidity. Or excessive generation of static electricity.

That is, when the humidity is low, a lot of drying makes it easier for the virus contained in the air to penetrate into the human body, and the amount of evaporation of moisture from the skin of the indoor dweller increases the haptic temperature, so energy consumption for maintaining the haptic temperature is increased. Dry skin can also cause skin diseases.

In addition, it is difficult to maintain the quality of products produced using hygroscopic materials such as paper or textiles, and the value of vegetables and fruits may be deteriorated.In addition, the storage of works such as antique art, ancient books or wood crafts Will be affected.

In addition, excessive drying causes excessive static electricity to cause malfunctions of precision instruments or electronic devices, and constant temperature and humidity should be maintained at all times in the case of constant temperature and humidity chambers used for the production of precision laboratories and products. There have been many problems, such as failure to maintain accurate test values and poor quality of products to be produced under constant temperature and humidity conditions.

Thus, in order to solve the above problems, the air conditioner is provided with humidifying means for adjusting the humidity of the air supplied to the room.

The duct of the air conditioner is provided with a vaporized humidifier, which is one type of humidifier, the configuration of which is briefly shown in FIG.

As shown, the vaporized humidifier 100 is a humidification element 104 of the honeycomb-shaped humidification element 104 is installed in the vertical direction on the water tank 102 in which the humidification water is stored (connected from the water tank 102) 106 is connected and installed at a predetermined interval on the upper portion of the humidifying element 104.

The humidifying water supply pipe 106 is provided with a plurality of nozzles 108 for injecting humidifying water into the humidifying element 104, and a pump 110 for supplying humidifying water to the nozzle 108 on one side thereof. ) Is installed.

In addition, the other side of the water tank 102 is connected to the water supply pipe 112 for replenishing the humidified water evaporated, the water supply pipe 112 is opened and closed in accordance with the water level in the humidification tank 102 When the level of the humidifying water is low, it is opened, and when the level is appropriate, a control valve 114 is provided to regulate the water supply of the humidifying water.

The vaporized humidifier 100 having the configuration as described above, by spraying the humidifying water pressurized by the pump 110 to the upper portion of the humidifying element 104 as a nozzle 108, the lower portion from the upper portion of the humidifying element 104. It is a humidifying means of the way that the humidifying water flows down the furnace, that is, the vertical direction, while the dry air passes in the horizontal direction, so that the air passing through the humidifying element 104 is blown into the room in a humidified state.

Compared to other humidifiers, the vaporized humidifier 100 is simple because of its advantages, such as simple equipment, high efficiency, low energy consumption, low noise, and primary purification of contaminated air. Usage is on the rise.

However, the evaporative humidifier provided in the conventional air conditioner has a problem that the humidification performance is lowered with continuous use because the temperature of the humidifying water supplied is low.

That is, since the temperature of the humidifying water supplied to the humidifying element of the evaporative humidifier is low temperature, condensation often occurs on the surface of the duct, wall, and the like even when humidifying. Such condensation causes malfunction of the device. In addition, the bacteria are easily inhabited, and the cleanliness of indoor air is reduced.

Thus, as one of the methods for preventing the condensation as described above, by adding a separate heating means to increase the temperature of the humidified water supplied to the humidification element to spray, there is proposed a method for improving the humidification performance, As such, if the temperature of the humidifying water is artificially increased through the heating means, the humidification performance can be temporarily improved. However, if the heating means and the vaporizing humidifier are continuously operated, the scale is generated inside the vaporizing humidifier. Rather, there was a problem that the humidification performance is lowered and additional energy must be supplied.

In addition, the cold coil for cooling the air blown into the room corresponds to the evaporator of the refrigeration cycle, by using the evaporation heat of the refrigerant to lower the temperature of the air blown into the room.

That is, in the cooling means configured based on the compressor-condenser-expansion valve-evaporator, the evaporator performs heat exchange with the indoor air to lower the temperature of the indoor air, and the condenser performs heat exchange with the outdoor air to lower the temperature of the refrigerant.

The evaporator and condenser are blown with a fan to increase heat exchange efficiency. Since the evaporator is provided in the duct, no energy loss or additional power is required due to heat exchange. However, since the condenser is heat exchanged with outdoor air, a separate power is required to operate the fan, and the heat emitted from the condenser is dissipated to the atmosphere. There was a loss.

Accordingly, the present inventors pay attention to the above problems, by raising the temperature of the humidified water supplied to the vaporized humidifier using the heat of condensation of the air conditioner, to prevent condensation to improve the humidification performance and condenser He has been filed and applied for an air conditioner (Patent No. 530387) that recycles condensation heat, which can improve heat exchange performance.

The air conditioner that recycles the heat of condensation, as shown in FIGS. 2 to 3, has a predetermined space formed therein, and an air supply duct 12 for supplying air conditioned to the room by the air supply fan 15. A main duct 11 to which one end is connected, and a ventilation duct 13 for circulating air contaminated from the room by the ventilation fan 16 is connected to the other end; A compressor 21, a plurality of condensers 22 and 22-1 connected to the compressor 21, an expansion valve 25 and the main duct connected to the plurality of condensers 22 and 22-1, Cooling means (20) made of a cooling coil (20) provided in the interior to allow the refrigerant to flow therein; A vaporized humidifier 100 configured to spray humidification water to the humidifying element 104 and to pass through the condenser of one of the condensers 22 and 22-1 and provided in the main duct 11; And heating means (40) provided in the main duct (11) and for raising a temperature of air passing through the main duct (11), wherein the cooling means includes a branch pipe (26) connected to the compressor (21). A first condenser 22 provided outside the main duct 11 and a second condenser 22-1 provided inside the vaporized humidifier 100 so as to be connected to the main duct 11. The refrigerant discharged from the compressor 21 is characterized in that the at least one of the first condenser 22 and the second condenser 22-1 flows through the branch pipe (26).

In addition, the branch pipe 26 is provided with control valves 27a and 27b which are opened and closed to control the flow of the refrigerant, respectively, and are provided at the outlets of the first condenser 22 and the second condenser 22-1, respectively. Check valves (28a, 28b) for preventing the back flow of the refrigerant is provided,

The vaporized humidifier 100, the lower part of the airtight and the humidification water is stored in the water tank 102, the humidification is formed in a honeycomb shape, the through-hole 102a is formed inside the vertically perpendicular to the water tank (100). A condensation pipe connected to the element 104, an end of the refrigerant circulation pipe connected to the compressor 21, and configured to pass through the through hole 102a of the humidification element 104, and an upper portion of the humidification element 104. And a watering nozzle 108 connected to the water tank 102 and the humidifying water supply pipe to spray the humidifying water to the humidifying element 104.

Meanwhile, in the vaporized humidifier 100, a distributor 26 connected to an end of the refrigerant circulation pipe to branch the flow of the refrigerant, and a plurality of condensation pipes each of which one end is connected to the distributor 26, respectively. It is also an additional feature to be provided with a refrigerant recovery header connected to the other end of the condensation pipe to collect the branched refrigerant, so that the condensation pipe is provided in multiple stages between the humidifying elements 104.

In addition, the humidification water control valve 114 is connected to the water tank 102 adjacent to the water supply pipe 112 for supplying the humidification water to the water tank 102 from the outside, and the inside is hollow with the outside blocked There is provided a float connected to the water surface of the humidification water stored in the water tank 102, the humidification water control valve 114, the humidification water control valve 114 is opened and closed according to the level of the humidification water,

The tank 102 is an additional feature that the sterilization lamp 116 is further provided.

The air conditioner for recycling the condensation heat having the above configuration is supplied to the evaporative humidifier without using a separate energy supply by using the condensation heat of the air conditioner using a simple structure of the temperature of the humidifying water supplied to the evaporative humidifier. By increasing the temperature of the humidifying water, condensation caused by the humidifying water can be prevented, so that a vaporized humidifier with improved humidification performance can be obtained, and the heat of the refrigerant flowing through the condenser is used in the process of raising the temperature of the humidifying water. It is also possible to obtain an effect of improving the condenser heat exchange efficiency.

However, the 'air conditioner for recycling condensation heat' registered and filed by the present applicant has several problems.

That is, a first condenser and a second condenser are connected in parallel, and a branch pipe is provided to branch the refrigerant flow between the first condenser and the second condenser, and the flow of the refrigerant is controlled between the first condenser and the branch condenser. A control valve is provided for the purpose of control, and a control valve is installed between the second condenser and the branch pipe, respectively, to prevent backflow of the refrigerant between the first condenser and the receiver and between the second condenser and the receiver. The check valve is installed, such as the configuration is very complicated, there was a problem that the manufacturing cost according to the design, as well as a big problem of concern.

In addition, provided with a plurality of condensers, by installing a condenser in a structure that is inserted into the vaporized humidifier, there is a problem in that it is difficult to manufacture according to the design, as well as other manufacturing costs.

Accordingly, the present invention was devised to improve some of the problems of the 'air conditioner for recycling condensation heat' registered and filed by the applicant of the present invention as described above, the configuration is simple and easy to manufacture and low production cost The main purpose is to provide an energy saving air conditioner using heat of condensation.

In addition, the present invention is provided with a plurality of condensers, by simplifying the structure to install a single condenser inside the vaporized humidifier, it is not only easy to manufacture according to the design, but also energy-saving using condensation heat of other low production cost It is also an object to provide an air conditioner.

The present invention for achieving the above object, a predetermined space is formed therein, the main duct to be sucked back to the room air and the outside air is sucked into the room; Cooling comprising a compressor, a first condenser connected to the compressor, a second condenser connected to the first condenser, an expansion valve and an evaporator (cooling coil) selectively connected to the first condenser or the second condenser. Means; A vaporized humidifier installed in the main duct, in which humidifying water is injected according to the operation of the pump, and one of the condensers installed; Is installed in the main duct, heating means for raising the temperature of the air passing through the main duct; The cooling means, the first condenser and the second condenser is connected in series, the second condenser The expansion valve is also connected in series, and the portion connecting the second condenser and the expansion valve is connected to the first condenser again, characterized in that the three-way valve is installed at this connection portion.

In this case, preferably, a check valve is installed at a portion connecting the second condenser and the expansion valve.

The three-way valve allows the refrigerant of the first condenser to flow directly to the expansion valve during the cooling operation, and the refrigerant of the first condenser passes through the second condenser during the cooling, humidifying, cooling and reheating operations. It is characterized by being opened to flow.

On the other hand, the vaporized humidifier is a water tank for storing the humidification water, a humidifying element in the form of a honeycomb, a pump for pulling up the humidifying water from the water tank, and the humidifying water drawn up by the pump to spray the humidifying element. Characterized in that it comprises a plurality of nozzles.

In this case, the second condenser is installed between the humidifying elements of the vaporized humidifier, or the second condenser and the humidifying elements of the vaporized humidifier are installed in a layered layer, or the second condenser is a humidifying element of the vaporized humidifier It may be installed at the top.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 4 is a block diagram showing an air conditioner according to the present invention, Figures 5a to 5c is a perspective view showing an embodiment of the evaporative humidifier applied to the air conditioner according to the present invention.

For reference, in describing the present invention, the same parts as in the prior art will be described with the same reference numerals, and repeated description thereof will be omitted.

As shown in the drawing, various facilities are provided in the main duct 11 to control indoor air.

The main duct 11 has a predetermined space therein, both ends of the main duct 11 is connected to the air supply duct 12 and the ventilation duct 13 connected to the room, by using the air supply duct 12 The temperature and humidity controlled air is sent to the room, and the indoor air is supplied back to the main duct 11 through the ventilation duct 13.

In addition, the air supply duct 12 and the end of the main duct 11 side of the ventilation duct 13 is provided with a fan for blowing, preferably the air supply fan 15 in the air supply duct 12 and the ventilation duct 13, respectively ) And the ventilation fan 16 are provided. The air supply duct 12 and the ventilation duct 13 are branched into the air supply duct 12 and the ventilation duct 13 in a portion located in the room, and the outlet and inlet are formed in various places to efficiently harmonize Air is supplied to the room and the air in the room is supplied back to the main duct.

In addition, one side of the main duct 11 includes the air supply unit 18 and contaminated material to allow the air required for air conditioning to be introduced from the outside, so that a part of the air continuously circulating through the main duct 11 and the room is external. An exhaust port 17 is formed for evacuating the gas.

On the other hand, in order to control the conditions of the indoor air, the main duct 11 is provided with a cooling coil 20, a vaporizing humidifier 100 and a heating coil 40 of the cooling means, respectively, the temperature and humidity of the air supplied to the room. Adjust

More specifically, the cooling coil 20 corresponds to the evaporator of the cooling means, the cooling coil 20 is provided inside the main duct 11, the expansion valve 25 to the outside of the main duct (11). , The receiver 24, the first condenser 22 and the compressor 21 are arranged in this order, and a pipe through which the refrigerant is circulated is connected.

The refrigerant circulates through the expansion valve 25 and the cooling coil 20 through the compressor 21, the first condenser 22, and the receiver 24 while undergoing heat exchange and phase change, and the cooling coil 20. Heat exchange with the air passing through the main duct 11 to lower the temperature of the air.

In addition, a cooling fan 23 is installed at one side of the first condenser 22 so that heat exchange performance between the refrigerant and the outside air is improved in the first condenser 22.

Here, the first condenser 22 and the second condenser 200 installed in the vaporized humidifier 100 are connected in series, the pipe coming out through the second condenser 200 is the receiver 24 To be connected.

At this time, the pipe passing through the second condenser 200 and the pipe connecting the first condenser 22 and the second condenser 200 in series to meet, the three-way valve 50 to the meeting portion By providing a, it is possible to control the flow of the refrigerant.

Meanwhile, a check valve 60 is installed at one end of the pipe passing through the second condenser 200 and connected to the receiver 24 to prevent the backflow of the refrigerant.

Accordingly, by adjusting the opening direction of the three-way valve 50, the amount of the refrigerant supplied to the first condenser 22 or the second condenser 200 is selectively controlled to selectively adjust the first condenser 22 or the second. The condenser 200 can be operated.

Along with the cooling means, one side of the main duct 11 is provided with a heating coil 40 which is a type of heating means connected to a heat source to increase the temperature of the air supplied to the room.

In the state where the heating coil 40 is heated by electricity or a boiler, the air passing through the main duct 11 rises to a desired temperature while passing through the heating coil 40 and is then supplied to the room.

Referring to the operation of the present invention having the configuration as described above are as follows.

First, the air supply fan 15 and the ventilation fan 16 is driven to supply air from the main duct 11 to the room, and the air in the room is vented to the main duct 11 again, and a portion of the air is exchanged. Outside air is taken in through the air supply port 18 as much as possible, and a part of air circulating through the exhaust port 17 is sent out.

At this time, the amount of air supplied through the air supply unit 18 is maintained so that the air pressure in the room, which is the object of air conditioning, is maintained slightly higher than that of the outside air.

In such a state, in the case where the heating operation is performed by simply moving out of the room, the temperature of the air passing through the heating coil 40 may be increased by increasing the temperature of the heating coil 40.

That is, the heating coil 40 raises the temperature by means of an electric method or through a boiler or the like, and allows the air to pass through the heating coil 40 in which the temperature is raised, whereby the temperature of the room is desired. Just heat it up.

On the other hand, when the cooling operation is to be performed, the refrigerant flows inside the cooling coil (evaporator) 20, and at this time, the three-way valve 50 is the first condenser 22 in the receiver ( 24) to open.

Therefore, when the compressor 21 is operated, the refrigerant passes directly through the first condenser 22 to the receiver 24, and then again through the expansion valve 25 and the evaporator (cooling coil) 20. 21).

In this state, the air passing through the main duct 11 is heat-exchanged with the refrigerant passing through the evaporator (cooling coil) 20 to be blown into the room in a state where the temperature is lowered to perform a cooling operation.

By the way, if the cooling operation of the air conditioner is continued in a case where the heat generation load is large and low humidity in the room, the air becomes more dry and requires humidification.

Accordingly, in this case, the pump 110 of the vaporized humidifier 100 is operated so that the humidifying water is injected into the humidifying element 104 through the nozzle, and at the same time the high temperature and high pressure passing through the first condenser 22. The opening degree of the three-way valve 50 may be adjusted such that the refrigerant exchanges heat through the second condenser 200.

That is, the refrigerant supplied from the compressor 21 passes through the first condenser 22, at which time the fan 23 of the first condenser 22 is not driven, and the three-way valve 50 passes through the first condenser 22. The refrigerant passing through the condenser 22 is not directly passed to the receiver 24, and only the refrigerant passing through the second condenser 200 is opened to the receiver 24.

Therefore, the high-temperature, high-pressure refrigerant passes through the second condenser 200, and at the same time, humidifying water is injected into the humidifying element 104 provided with the second condenser 200, so that the evaporator (3) passes before the humidifying element 104 passes. The air, which has become a low temperature state through the cooling coil 20, is heated by heat exchange with a refrigerant passing through the second condenser 200 to absorb more humidified water, which has evaporated a lot, and is humidified to improve than before. It is discharged to the room in a state.

That is, in the second condenser 200, the refrigerant is at a higher temperature than the air passing through the main duct 11, thereby dissipating condensation heat while passing through the second condenser 200. As the heat of condensation is released as described above, it is also transmitted to the air passing through the main duct 11, but is also transmitted to the humidifying water flowing down through the humidifying element 104. When the heat of condensation is transferred to the humidifying water, The temperature is raised to improve the evaporation capacity of the humidified water, thereby improving the overall humidification performance.

On the other hand, when the temperature is high and high in the rainy season in summer, and the acquired sensible heat ratio (SHF) to the acquired sensible heat in the room is small, the operation of only cooling and dehumidifying lowers the temperature of the discharged air, thereby making the room supercooled.

Therefore, in this case, it is necessary to increase the temperature of the discharged air as the heating coil to satisfy the indoor set temperature and humidity conditions.

In other words, after mixing the outside air and the indoor air to make the mixed air, passing through the cooling coil to approach the dew point temperature will require reheating.

However, in order to operate the heating coil, a separate energy is required. In this case, the cooling and the damping operation described above are performed, but the driving of the pump 110 so that the humidifying water is not injected to the humidifying element 104. Only stop it.

Then, the low-temperature air passing through the evaporator (cooling coil) 20 is heat-exchanged with the high-temperature high-pressure refrigerant passing through the second condenser 200 and discharged to the room in a heated state to a certain degree, thereby maintaining Humidity can be maintained.

On the other hand, according to the 'air conditioner for recycling condensation heat' registered by the applicant of the present application, the second condenser penetrates the humidifying element 104 in the vaporized humidifier 100, bar configuration thereof It is a complicated issue that has been raised before.

Thus, in the present invention, the above-described problems are eliminated by making the configuration of the vaporized humidifier 100 having the second condenser 200 more efficient and simple.

That is, as shown in Figure 5a, by having a structure in which the second condenser 200 in the center and the humidifying element 104 is provided on both sides, respectively, to simplify the configuration, as well as the need for humidification In this case, while operating the pump 110 to allow the refrigerant to pass through the second condenser 200 and at the same time to spray the humidifying water, and when reheating is required, the pump 110 is operated to prevent the injection of the humidifying water. Only stop it.

Meanwhile, as shown in FIG. 5B, the second condenser 200 may be installed at the front portion, and the humidifying element 104 may be installed at the rear portion thereof, and as shown in FIG. 5C, the second condenser 200 may be installed at the upper portion thereof. In addition, the humidifying element 104 may be installed below.

As described above, according to the present invention, the configuration of the air conditioner is simplified, the production is easy, the manufacturing cost is reduced, and there is an advantage that the maintenance is easy.

In addition, the configuration of the vaporized humidifier applied to the present invention is also simplified, the production is easy, the production cost is reduced, as well as maintenance is also easy effect.

Claims (7)

A main duct is formed inside the main duct to allow the air and the outside air to be sucked and blown back into the room; Cooling comprising a compressor, a first condenser connected to the compressor, a second condenser connected to the first condenser, an expansion valve and an evaporator (cooling coil) selectively connected to the first condenser or the second condenser. Means; A vaporized humidifier installed in the main duct, in which humidifying water is injected according to the operation of the pump, and one of the condensers installed; Is installed in the main duct, heating means for increasing the temperature of the air passing through the main duct; The cooling means, The first condenser and the second condenser are connected in series, the second condenser and the expansion valve are also connected in series, and the portion connecting the second condenser and the expansion valve is connected to the first condenser again, this connection Energy-saving air conditioner using the heat of condensation, characterized in that the three-way valve is installed on the site. The method of claim 1, Energy saving type air conditioner using the heat of condensation, characterized in that the check valve is installed in the portion connecting the second condenser and expansion valve. The method of claim 1, The three-way valve allows the refrigerant of the first condenser to flow directly to the expansion valve during the cooling operation, and the refrigerant of the first condenser flows to the expansion valve during the cooling, humidifying, cooling and reheating operations. Energy-saving air conditioner using the heat of condensation, characterized in that the opening. The method of claim 1, The vaporizing humidifier includes a plurality of tanks for storing humidifying water, a humidifying element having a honeycomb shape, a pump for drawing humidifying water from the tank, and a plurality of spraying humidifying water drawn by the pump to the humidifying element. Energy-saving air conditioner using a heat of condensation, characterized in that the nozzle comprises a. The method according to claim 1 or 4, And a second condenser is installed between the humidifying elements of the evaporative humidifier. The method according to claim 1 or 4, Energy-saving air conditioner using the heat of condensation, characterized in that the second condenser and the humidifying element of the evaporative humidifier is installed in a layer. The method according to claim 1 or 4, The energy-saving air conditioner using the heat of condensation, characterized in that the second condenser is installed in the diaphragm with the humidifying element of the evaporative humidifier.

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