KR100915340B1 - Cold and heat air conditioner - Google Patents

Abstract

The present invention relates to a cooling and heating air conditioner capable of realizing air cooling, including indoor cooling, heating, and ventilation.

The present invention structurally implements a main body in the form of a package in which air supply, exhaust and mixing are separated, so that fresh air can always be sent to the room. It is possible to drastically increase the cooling and heating efficiency by maintaining a constant temperature in all parts, and the packaged structure of the main body makes it possible to install anywhere indoors and outdoors without space restrictions, and to easily install and transport. Easy to handle and maintain, and by recycling the waste heat of the machine room and the exhaust temperature above 0 ℃ to the evaporator coil side, the electricity consumption can be reduced to a minimum and the heating capacity can be drastically reduced. Provides a heating and cooling air conditioner that can be increased.

Description

Cold and heat air conditioner

The present invention relates to a heating and cooling air conditioner, and more particularly, by implementing a packaged air conditioning equipment capable of realizing air cooling, including cooling, heating, and ventilation, it is possible to install anywhere indoors or outdoors without space restrictions It is possible to obtain an excellent heating and cooling efficiency, and more particularly, to a heating and cooling air conditioner that can significantly improve the heating capacity efficiency by recovering and reusing all the heat of the air exhausted during heating and the waste heat generated in the device.

In general, an air conditioner or air conditioner that selectively switches the flow direction of indoor and outdoor air to a condenser and an evaporator, or mixes indoor and outdoor air at an appropriate ratio and divides it into a condenser and an evaporator. It is used a lot.

Through this air flow switching, or by combining the refrigerant flow switching method through the four-way valve, the air conditioner equipped with a single condenser and the evaporator can be combined with cooling and heating, and is discharged to the outside The waste heat from the air can be recovered in the outdoor unit to increase the cooling and heating efficiency, and the ventilation effect of the indoor air can be obtained.

For example, Korean Patent No. 354132 discloses an example of an air conditioning air conditioner, and the air conditioning air conditioner disclosed herein includes an indoor unit (evaporator in cooling mode, condenser in heating mode) and an outdoor unit (cooling mode). In the case of condenser in the heating mode and evaporator in the heating mode, it is built in one body, and it is equipped with the damper system which can mix outdoor air and indoor air appropriately.

However, the existing air conditioning and air conditioners as described above have a structure in which the indoor or outdoor air introduced into the main body has a structure in which the direction or the air volume is controlled by the damper, so that the arrangement of the heat exchanger is complicated and occupies a lot of installation space. As the dampers are arranged close to the heat exchanger side, the individual dampers are arranged to overlap only a part of the heat exchange area of the heat exchanger, so that the air flows through only a part of the heat exchange area, resulting in a decrease in heat exchange efficiency. have.

In addition, since the layout related to the arrangement of the heat exchangers such as the condenser and the evaporator, as well as the ventilation, the exhaust blower, and other components is inefficiently designed, the overall volume of the apparatus is increased, thereby securing a large installation space. There is.

In particular, the most problematic in existing air-conditioning air conditioners (for example, air heat source heat pump air conditioners) is the problem of electric heater capacity as a compensation heat source by lowering the frost (appropriate) and the outside air temperature.

However, when the outside temperature is below -8 ° C, the electric heater is insufficient to remove frost.

Existing air-conditioning air conditioners have frost phenomenon in the evaporator coil from outside the air temperature of 9 ℃ or less. At this time, the compressor pressure drops and mechanical defects occur and the heating efficiency decreases.

Therefore, the present invention has been devised in view of the above, by implementing a package-type body in which the air supply, exhaust, and mixing is structurally separated, it is possible to always send fresh air to the room, before going to the front end of the heat exchanger side The aim is to provide a heating and cooling air conditioner that can dramatically increase the heating and cooling efficiency, such that the indoor air and the outside air are perfectly mixed to maintain a constant temperature at all parts.

In addition, the present invention provides a cooling and heating air conditioner that can be easily installed and transported anywhere, indoor and outdoor, and easy to install and transport without space restrictions due to the packaged structure of the main body is another object. There is this.

In addition, the present invention by applying a system for bypassing the waste heat of the machine room and the exhaust temperature of 0 ℃ or more to bypass the evaporator coil side, by reducing the electricity consumption to a minimum, the heating and cooling air that can significantly increase the heating capacity There is another purpose to provide a harmonic.

Air conditioning and cooling air conditioner according to an embodiment of the present invention for achieving the above object is the air supply fan and the exhaust chamber is provided with an air inlet to allow the inflow of air to the air to the room belonging to, Exhaust chamber which is belonged to and allows air to flow to the side, and is provided with an exhaust port for sending air to the outside, and is disposed between the air supply chamber and the exhaust chamber and the communication between each chamber side through the side is possible, the interior The space is partitioned into separate areas by partitions, and either side of the independent space is provided with a first heat exchanger, an indoor air inlet and an outdoor air inlet, and the other side is a mixing chamber with a second heat exchanger and an outdoor air inlet. And a compressor connected to the first heat exchanger and the second heat exchanger and the refrigerant pipe, and the like being combined with one side of the mixing chamber. And a machine room having a structure communicating with the exhaust side space, and connected between the exhaust port side of the exhaust chamber and the outdoor air inlet side of the mixing chamber so that a part of the exhausted air is circulated back to the second heat exchanger side in the mixing chamber. Characterized in that it includes a bypass device that can be.

Here, the bypass device has a distribution duct having a discharge duct connected to one side while communicating with the exhaust chamber side, an outside air duct having a outdoor air inlet connected to one side while communicating with the mixing chamber side, and a damper while having a distribution duct and outside air. It may be configured to include a connection duct and the like connected between the side ducts to guide a part of the exhaust to the mixing chamber side.

In particular, the bypass device is operated by a bypass method in which 30% of the air supplied from the machine room is exhausted and 70% is circulated by controlling the opening and closing amount of the damper installed at the exhaust port and the damper installed at the connection duct. It is desirable to.

In addition, in the case of the air supply chamber, the exhaust chamber, the mixing chamber, and the mechanical chamber, each may be manufactured in an independent assembly form, and thus may be separately configured in detail, or may be configured in one piece.

Hereinafter, with reference to the accompanying drawings will be described in detail air conditioning air conditioner according to an embodiment of the present invention.

1 is a perspective view showing a heating and cooling air conditioner according to an embodiment of the present invention.

As shown in Figure 1, the air-conditioning air conditioner is composed of a combination of three main body (29a), (29b), (29c) that can be separated and coalesced, each body to supply air to the room, Each chamber is configured to discharge air to the outside, or to mix the inside and the outside air.

For example, the main bodies 29a and 29c disposed on the left and right sides are formed of an air supply chamber and an exhaust chamber for supplying air to the indoor side, respectively, and the main body 29b disposed in the center is formed of air coming from outside and indoors. It is composed of a mixing chamber that can mix the incoming air, or can directly introduce the outside air.

Each of the main bodies 29a, 29b, and 29c may be separately manufactured in one assembly form, and then may be integrated into a single unity in a line when used, and in the case of the central main body 29b By having a structure in communication with the main body 29a, 29c on the left and right through the side that is in contact with each other, it is possible to enable the air flow to either side.

Of course, the communication portion between the main body can be connected in the same manner as the known flange connection structure including the airtight structure.

Particularly, in the case of the main body 29b disposed in the center, a machine room in which an accessory device for cooling and heating is installed is provided together, and the machine room passes through a space communicating with the exhaust side of the mixing chamber to enter the machine room. May have a flow going to the exhaust side space of the mixing chamber.

Thus, in the case of the air-conditioning and air conditioner provided in the present invention, the air supply side and the exhaust side are clearly separated from each other, so that not only the fresh air can be supplied, but also the three-stage proportional structure, which facilitates installation and transportation. As each main body is compactly combined in one package form, outdoor unit, compressor unit, control panel, piping, etc. are not exposed to the outside of the air conditioner, so that the construction space can be efficiently reduced. It is advantageous in terms of utilization.

2 to 4 is a front view, a plan view and a side view showing a heating and cooling air conditioner according to an embodiment of the present invention.

2 to 4, the inside of the main body 29a serving as the air supply side is formed of an air supply chamber 12 having a predetermined volume, and therein blowing means for supplying air, i.e. The air supply fan 10 is installed.

In addition, an air inlet 11 is installed at an upper portion of the air supply chamber 12, and the air inlet 11 at this time communicates with the indoor side through a duct pipe, and one side of the mixing chamber 21 is described later. It is connected by a structure that communicates with one side.

Accordingly, the air (internal and external air mixed air) supplied from the mixing chamber 21 is introduced into the chamber with the operation of the air supply fan 10, and is subsequently sent to the interior through the air supply 11, thereby indoors. Heating and cooling is possible.

The inside of the main body 29c serving as the exhaust side is also composed of an exhaust chamber 15 having a predetermined volume, such as the air supply chamber 12, and an exhaust fan 13 for exhausting air is provided therein. .

The exhaust chamber 15 is connected to the other side of the mixing chamber 21 through a side in contact with each other in the state of union between the main body (29b, 29c), the upper portion of the bypass device 26 to be described later Exhaust port 14 is formed for the external discharge of air through the medium.

Accordingly, the air discharged from the mixing chamber 21 side flows into the chamber with the operation of the exhaust fan 13, and then can continue to the outside through the exhaust port 14.

At this time, the exhaust port 14 is provided with a damper (25f) for opening and closing by an actuator, such as a solenoid, the damper (25f) at this time is operated by an actuator under the control of a control panel (not shown) while controlling the opening and closing amount It is desirable to be able to adjust.

The interior of the main body 29b, which is combined between the air supply-side main body 29a and the exhaust-side main body 29c, which are separated from each other, serves to mix the internal and external air or to introduce the internal air or external air separately, has several independent spaces. It is composed of a mixing chamber 21 partitioned into two, and inside the two heat exchangers for performing a heat exchange action for heating and cooling, that is, the first heat exchanger 17 and the second heat exchanger 18 are respectively installed.

For example, the interior of the mixing chamber 21 is divided into two independent spaces and a space to which the machine room 23 belongs by the partition wall 16 having a substantially "T" shape when viewed in plan view. Each of the two independent spaces acts as a space for mixing the inside and outside air while communicating with the air supply chamber 12 side and the exhaust chamber 15 side through the side surfaces, or as an introduction space of the outside air or the inside air.

At this time, the first heat exchanger (17) and the second heat exchanger (18) are located on each connection passage communicating with the air supply chamber (12) side and the exhaust chamber (15) while being assigned to each independent space formed as described above. It is installed in the form.

Here, the first heat exchanger (17) and the second heat exchanger (18) are connected to a compressor pipe and the like installed in the machine room side, the piping method for the heat exchanger at this time is commonly known in the art. If so, the present invention is not particularly limited and may be adopted.

In addition, the front end of the first heat exchanger 17 and the second heat exchanger 18 is provided with a filter device 27 can protect the heat exchanger coil from the outside contaminated air to extend the life, Moreover, purified blue air can be supplied and exhausted.

In order to introduce the inside or outside air, one of the independent spaces of the mixing chamber 21, that is, the space communicating with the air supply side, is an outdoor air inlet 19a through which external air enters and an indoor air inlet 20a through which internal air enters. Are respectively formed, and the outdoor air inlet port 19b through which outside air enters is formed in the space communicating with the exhaust side.

Accordingly, during operation of air conditioning and the like, the internal air and the external air may enter and mix into one space through the indoor air inlet 20a and the outdoor air inlet 19a, and then be sent to the air supply chamber 12 side. Outside air may enter the other space through the outdoor air inlet (19b) to be sent to the exhaust chamber (15).

At this time, since the air coming in from the outside through the separate outdoor air inlet (19a, 19b), respectively, that is, the outside air to be sent to the air supply chamber 12 side does not mix with the exhaust side separate outdoor air inlet ( Since it is introduced through 19a), it is possible to supply fresh air to the room.

Here, the outdoor air inlets 19a, 19b and the indoor air inlet 20a also include dampers 25b, 25c, 25d operated by actuators controlled by a control panel (not shown). It is preferable to be able to open and close while installing the opening and closing amount is adjusted.

As such, in the mixing chamber 21, each of the air inlets 19a, 19b, 20a, and 20b is structurally completely separated, so that fresh air can always be introduced into the room. The application of the chamber 21 allows the air and bet to mix perfectly before the air goes to the front end of the heat exchanger coil, so that a constant temperature can be maintained at all parts at all times.

In addition, a separate independent space is formed in the main body 29b to which the mixing chamber 21 belongs, and the space thus provided is a machine room in which accessories for cooling and heating, such as a compressor 22 and an expansion valve (not shown), are installed. 23).

An indoor air inlet 20b is formed in the upper part of the machine room 23, and the inside of the machine room 23 communicates with the exhaust side space of the mixing chamber 21 through the connection port 28 on the partition wall.

Accordingly, the indoor air inlet 20a of the mixing chamber 21 and the indoor air inlet 20b of the machine room 23 are connected together by one duct 24 extending from the indoor side, and each inlet has a damper. 25a and 25b are provided so that the indoor air supplied through the duct 24 can be distributed at an appropriate ratio according to the control of the amount of opening and closing of these dampers.

In this case, it is preferable that the dampers 25a and 25b are operated by an actuator which is controlled by a control panel (not shown) so that the amount of opening and closing can be adjusted.

In particular, the present invention bypasses some of the waste heat of the waste air and the indoor air exhausted in accordance with the operation of the machine room and provides it to the second heat exchanger side acting as an evaporator, thereby eliminating the frost phenomenon generated in the evaporator coil during winter operation. It is possible to provide a bypass device 26 which is capable of suppressing the use of a heater as much as possible.

To this end, a duct of a certain height is extended to an upper portion of the main body 29c in which the exhaust chamber 15 is formed and to an upper portion of the main body 29b in which the mixing chamber 21 is formed, and then each duct member communicating therewith. That is, by providing the distribution duct 26a and the outside air side duct 26b, and installing the connection duct 26c between the distribution duct 26a and the outside air side duct 26b at this time, the exhaust chamber 15 → distribution The circulation path of the exhaust gas leading to the duct 26a-> connecting duct 26c-> outside air side duct 26b-> mixing chamber 21 can be ensured.

In addition, an exhaust port 14 may be connected to one side of the distribution duct 26a, for example, the side opposite to the side where the connection duct 26c is located, and may be exhausted therethrough, and one side of the outside air duct 26b, For example, the outdoor air inlet (19b) is connected to the top can be supplied to the outside air.

In addition, a damper 25g is installed in the connection duct 26c so that the amount of air bypassed can be adjusted according to the amount of opening and closing of the damper.

 The damper 25g according to the present invention is kept in a completely closed state during cooling and does not bypass the air exhausted to the exhaust chamber 15 to the connection duct 26c side, and remains open to some extent during heating ( Preferably about 70% of the total is opened.) The air exhausted to the exhaust chamber 15 is bypassed to the connection duct 26c.

Accordingly, a part of the exhausted air can be bypassed through the above circulation path and provided to the second heat exchange 18 side in the mixing chamber 21.

That is, the opening and closing amount of the damper 25f provided in the exhaust port 14 and the damper 25g provided in the connecting duct 26c can be adjusted to bypass the air at a constant ratio.

For example, 30% of the air sent from the machine room can be exhausted and 70% can be bypassed.

During the bypass process, the duct installed in the outdoor air inlet 19b is kept closed.

Therefore, looking at the operating state of the air conditioning air conditioner according to an embodiment of the present invention configured as described above are as follows.

5 is a plan view showing an operating state during the cooling operation in the air conditioning air conditioner according to an embodiment of the present invention, Figure 6 is an operating state during the cooling operation in the air conditioning air conditioner according to an embodiment of the present invention FIG. 7 is a plan view illustrating an operating state during an external air cooling operation in the air conditioning air conditioner according to an embodiment of the present invention.

As shown in FIG. 5, the first heat exchanger 17 performing the heat exchange in the cooling or heating mode functions as an evaporator in the cooling mode and a condenser in the heating mode, and the second heat exchanger 18 is in the cooling mode. It functions as a condenser and as an evaporator in heating mode.

In the cooling mode, outside air flows into one space of the mixing chamber 21 through the outdoor air inlet port 19a, and air circulated from the room flows through the indoor air inlet port 20a. Outside air flows into the space through the outdoor air inlet (19b).

At this time, the air circulated from the room is also introduced into the machine room 23 through the indoor air inlet (20b), the dampers (25a), (25b) installed in each indoor air inlet (20a, 20b) is Since it is open to a predetermined ventilation ratio, some of the circulating air is directed to the machine room, and the remaining air is naturally introduced into one space of the mixing chamber 21 for recooling.

Here, if the ventilation rate per circulation cycle of the circulating air is 100%, air can be distributed at a rate of 30% to the machine room and 70% to the mixing chamber, and accordingly, the outside air flowing into the mixing chamber can be adjusted to 30%. have.

Outside air and bet introduced into the mixing chamber 21 are mixed and mixed together in the chamber inner space as soon as they are introduced, so they are mixed at a high speed to become a uniform temperature of mixed air, and thus the single-temperature mixed air passes through the heat exchanger. The heat exchange effect is evenly distributed over the entire surface of the coil, thereby improving heat exchange efficiency.

Subsequently, the mixed air is filtered while passing through the filter device 27, and the heat is cooled by heat exchange while passing through the first heat exchanger 17 serving as an evaporator.

The cooling air flows into the air supply chamber 12 in accordance with the operation of the air supply fan 10, and then is supplied to the interior side through the air supply 11.

The air after the cooling operation in the room is introduced to the air conditioner side again through the duct 24, thereby circulating in a cycle to cool the room.

On the other hand, the second heat exchanger 18, which acts as a condenser separately from the first heat exchanger 17, which acts as an evaporator, is connected to the first heat exchanger 17 by a refrigerant pipe, and in the first heat exchanger 17, After the vaporized refrigerant is transferred to the second heat exchanger 18 along the refrigerant pipe, the refrigerant is deprived of heat to the outside air, condensed, and then returned to the first heat exchanger 17.

At this time, the air flow in the space to which the second heat exchanger 18 belongs is simply performed by the operation of the exhaust fan 13.

That is, when the exhaust fan 13 is operated, external air is sucked into the external air inlet 20b, heat exchanged in the second heat exchanger 18, and then exhausted to the outside through the exhaust fan 13.

The embodiment adopts a heat pump type heat exchange method that is commonly used to switch the refrigerant flow, thereby switching the cooling and heating.

That is, by switching the refrigerant flow using a four-way valve (not shown), the first heat exchanger 17 acting as an evaporator in the cooling mode acts as a condenser in the heating mode, and the second heat exchange acting as a condenser. The group 18 changes its role to the evaporator.

However, the direction of the arrow of the air flow route in the figure does not change.

On the other hand, as shown in Figure 6, the heating mode is the same as the above cooling mode and the basic air, the outside air, circulating internal air, but here provides a flow of air to bypass a part of the exhaust.

For example, the exhaust gas exiting one side of the mixing chamber and the exhaust chamber side through the machine room enters the distribution duct 26a, and about 30% is completely discharged to the outside through the exhaust port 14, and about 70% The degree is bypassed back through the connecting duct 26c and the outside air duct 26b to one space of the mixing chamber, and the air thus bypassed is then applied to the second heat exchanger 18 acting as an evaporator. In addition, the evaporator can increase the evaporation temperature and pressure to increase the heating capacity without operating a separate heater, and to prevent the occurrence of frost on the evaporator coil.

Thus, even when the outside air temperature in winter is -10 ℃ or less, it is possible to reuse the waste heat generated in the machine room and the waste heat of the air in the form of using the air of ventilation 24 ℃, machine room waste heat 28 ℃, outside air (bypass) 0 ℃, Heaters can only be used in emergencies and, ultimately, reduce operating costs due to reduced power usage.

In addition, as shown in Fig. 7, the operation in the external air cooling mode is shown here.

When the external temperature is lower than the indoor set temperature in the season, the object of outdoor air cooling can be achieved by supplying the outside air to the room 100% and exhausting the indoor air to the outside 100%.

At this time, the indoor circulation air is introduced through the 100% machine room, and then flows out through the mixing chamber and the exhaust chamber.

As described above, the air conditioner provided in the present invention has the following advantages.

First, as a separate air conditioner integrated (separate) air conditioner, it has the function of a completely independent air-conditioning system that can realize outside air cooling including cooling, heating, and ventilation in a packaged structure. It can be installed without.

Second, even when the outside air temperature is below -10 ℃ during winter, the heater uses only 24 ℃ of ventilation, 28 ℃ of machine room waste heat, and 0 ℃ of outside air (bypass) to reuse waste heat and waste heat of air in the machine room. It can be used only, thereby reducing the operating cost, which can significantly reduce the power, and can greatly increase the heating capacity with the use of a minimum heater.

Third, the defroster coil does not need to be defrosted at less than -8 ° C, so no defrosting operation is required.

Fourth, there is no change in compressor efficiency even when cooling the outside air temperature (35 ° C. or higher) and heating (-10 ° C. or lower), thereby enabling continuous heating operation at a comfortable and constant temperature at all times.

Fifth, the external air inlet and internal air inlet including the air supply and exhaust are completely separated, and both the air supply and the exhaust are treated with a filter, so that the heat exchanger can be protected from external polluted air, and fresh air can always be supplied to the room. Can be.

Sixth, since the structure of the main body is a three-stage proportional structure of the package form, it can significantly reduce the installation and transportation costs, and can be combined into a separate or integral type according to the standards and laws of each country.

1 is a perspective view showing a heating and cooling air conditioner according to an embodiment of the present invention

Figure 2 is a front view showing a heating and cooling air conditioner according to an embodiment of the present invention

3 is a plan view showing a heating and cooling air conditioner according to an embodiment of the present invention

Figure 4 is a side view showing a heating and cooling air conditioner according to an embodiment of the present invention

5 is a plan view showing an operating state during the cooling operation in the air conditioning air conditioner according to an embodiment of the present invention

Figure 6 is a plan view showing an operating state during the cooling operation in the air conditioning air conditioner according to an embodiment of the present invention

7 is a plan view showing an operating state during the air cooling operation in the air conditioning air conditioner according to an embodiment of the present invention

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

10: air supply fan 11: air supply

12 supply air chamber 13 exhaust fan

14 exhaust port 15 exhaust chamber

16 bulkhead 17 first heat exchanger

18: second heat exchanger 19a, 19b: outdoor air inlet

20a, 20b: indoor air inlet 21: mixing chamber

22 compressor 23 machine room

24: Duct 25a, 25b, 25c, 25d, 25f, 25g: Damper

26: bypass device 27: filter device

28: connector 29a, 29b, 29c: main body

Claims (3)

In air conditioning and air conditioners, An air supply chamber 12 to which the air supply fan 10 belongs, which is capable of introducing air to the side, and which is provided with an air supply unit 11 capable of sending air to the room; An exhaust chamber 15 to which the exhaust fan 13 belongs, which allows air to flow into the side, and has an exhaust port 14 capable of sending air to the outside; It is arranged between the air supply chamber 12 and the exhaust chamber 15, the air can be in contact with each chamber side through the side, the inner space is partitioned into separate areas by the partition wall 16, the independent space A mixing chamber in which one of the first heat exchanger 17, the indoor air inlet 20a, and the outdoor air inlet 19a is provided, and on the other side, the second heat exchanger 18 and the outdoor air inlet 19b are provided. (21); Compressor 22, which is connected to the first heat exchanger 17 and the second heat exchanger 18 by a refrigerant pipe, belongs to the machine room having a structure which is connected to one side of the mixing chamber 21 and communicates with the exhaust side space. (23); And A portion of the exhausted air is connected between the exhaust port 14 side of the exhaust chamber 15 and the outdoor air inlet 19b side of the mixing chamber 21 to be circulated back to the second heat exchanger side in the mixing chamber. Including bypass device 26, The bypass device 26 has a distribution duct 26a through which the exhaust port 14 is connected to one side while communicating with the exhaust chamber 15 side, and an outdoor air inlet 19b through one side while communicating with the mixing chamber 21 side. Is connected between the distribution duct 26a and the outside air duct 26b with the damper 25g connected to the outside air side duct 26b to guide a part of the exhaust to the mixing chamber side. Heating and cooling air conditioner, characterized in that comprising a. The machine room side according to claim 1, wherein the bypass device 26 controls the opening and closing amount of the damper 25f provided in the exhaust port 14 and the damper 25g provided in the connection duct 26c during heating. Cooling and heating air conditioner is characterized in that the operation is operated by a bypass method to exhaust the air supplied from 30% and circulating 70%. The method of claim 1, wherein the air supply chamber 12, the exhaust chamber 15, the mixing chamber 21 and the machine room 23 are each manufactured in a separate assembly form to be separated into three parts, or one integrally Heating and cooling air conditioner, characterized in that.