KR100354132B1 - Air handling unit - Google Patents

Abstract

The present invention relates to a cooling and heating air conditioner for controlling the waste heat recovery combined waste heat recovery, and maintains a predetermined space between the heat exchange chamber for ventilation air supply and the heat exchange chamber for recovery, and partitions the space horizontally in the middle of the space. By installing a transverse bulkhead, one side is provided with an indoor air intake chamber having a first damper for controlling the ventilation recovery and a second damper for controlling the ventilation circulation on one side, and an external air utilization control damper on both sides on the other side. An external air suction chamber having a third damper and a fourth damper, which is an air supply air control damper, is connected to the indoor air suction chamber and is connected to a single duct through which air discharged is discharged. Thermal bridge for ventilation air supply where the air introduced into the indoor air suction chamber and the air introduced into the outdoor air suction chamber through the single duct are opposite to each other Constitutes indeed chamber and a recovery heat exchanger to flow are respectively distributed to the predetermined ratio.

According to the present invention as described above, the existing indoor unit (evaporator) and the outdoor unit (condenser) is built in a separate case to simplify the overall structure, and to facilitate the installation of the air conditioner, and the flow of refrigerant By simply switching to perform the heating and cooling function, and contribute to the improvement of the efficiency of the air conditioner.

Description

Ventilation recovery rate adjustable waste heat recovery combined air-conditioning air conditioner {Air handling unit}

The present invention relates to a cooling and air-conditioning air conditioner for the combined use of the ventilation rate recovery waste heat recovery, and more specifically, the cooling and heating using the heat pump method, as well as selectively controlling the amount of air exhausted from the room to pass through the condenser during cooling In addition, the present invention relates to a ventilation recovery rate controlled waste heat recovery combined air-conditioning and air conditioner that improves cooling and heating efficiency by recovering cold and hot waste heat energy that is thrown away by a ventilation action by passing through an evaporator during heating.

A general air-conditioning combined air conditioner is an air conditioner having a cooling refrigerant cycle and an electric heater, or separately installs an outdoor heat exchanger and an indoor heat exchanger, and uses a four reverse valve to switch the flow of refrigerant. In this case, the air conditioner of the packaged heat pump type is designed so that the indoor heat exchanger acts as an evaporator to cool the room, and the indoor heat exchanger acts as a condenser to dissipate heat. It is known.

However, the conventional air-conditioning combined air conditioner as described above has a disadvantage in that power consumption is excessively required by a separate electric heater, and due to the structural characteristics of the air conditioner, the overall condition of the air conditioner is limited according to the installation conditions. As the configuration is complicated, there are many problems such as high manufacturing cost and insufficient maintenance of the air conditioner due to insufficient function of the air conditioner.

The main object of the present invention is to simplify the overall structure of the air conditioner by installing the existing indoor unit (evaporator) and the outdoor unit (condenser) in a separate case so that it is not necessary to install a separate outdoor unit. The purpose of the present invention is to provide a cooling and heating air conditioner for controlling the recovery rate of ventilation, which allows the installation to be easier, and the refrigerant flow can be easily switched to perform the cooling and heating function.

Another object of the present invention is to add a ventilation function of the indoor air that was not feasible in the conventional packaged air-conditioning air conditioner, the ventilation to maximize the cooling and heating efficiency by recovering the entire amount of waste heat energy in the exhaust air during ventilation The purpose of the present invention is to provide a cooling / heating air conditioner for a combined recovery rate of waste heat recovery.

1 is a ventilation recovery rate adjustable waste heat recovery combined air-conditioning air conditioner according to the present invention

Partially cutaway perspective view of a preferred embodiment of the present invention.

2 and 3 is a ventilation recovery rate adjustable waste heat recovery combined heating and heating ball according to the present invention

In showing the operation state of the unit,

2 is a schematic plan view for explaining the operation of the cooling mode.

3 is a schematic plan view for explaining the operation of the heating mode.

4 is an enlarged view of a portion A of FIG. 2;

5 is a ventilation recovery rate adjustable waste heat recovery combined air-conditioning air conditioner according to the present invention

Configuration diagram of the forced water sprinkling means for constituting.

Figure 6 is a block diagram of a refrigerant flow type heat pump to which the present invention is applied.

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

10; Case 20; Heat exchange chamber for ventilation supply

21; Indoor outlet 22; Air supply blower

23; Evaporator 24; Evaporator drain plate

25; Expansion valve 31; Outdoor outlet

32; Exhaust blower 33; Condenser

34; Condenser drain plate 35; Expansion valve

40; Transverse bulkhead 50; Indoor air intake chamber

52; First damper 53; Second damper

60; Outside air intake chamber 62; 3rd damper

63; Fourth damper 71; Condensate pump

72; Cooling water sprayer 73; Condensate Supply Piping

In order to achieve the above object of the present invention, a heat exchange chamber for ventilating air supply including a discharge port, an air supply blower, an evaporator, an evaporator drain plate, an expansion valve, and an air cleaning filter in one case, and an outdoor discharge port, an exhaust blower A predetermined space is integrally formed between the recovery heat exchange chamber including the condenser, the condenser drain plate, and the expansion valve, and the ventilation air supply heat exchange chamber and the recovery heat exchange chamber, A transverse bulkhead partitioning in a direction is provided, and on one side, an indoor air suction chamber is provided on both sides with a first damper as a control damper for recovery of ventilation and a second damper as a control damper for ventilation circulation, and on the other side, outside air is provided on both sides. A third air damper, which is a utilization rate control damper and a fourth damper, which is an outdoor air supply rate control damper, is formed, and the indoor air intake chamber is returned to the indoor air intake chamber. Heat exchange chamber for ventilating air supply where the air flowing into the indoor air suction chamber and the air flowing into the outdoor air suction chamber are connected to each other by connecting and installing one single duct through which the discharged air flows. And a ventilation recovery rate adjustable waste heat recovery combined cooling and heating air conditioner, configured to flow in a predetermined ratio to the recovery heat exchange chamber.

And condensate forced water spraying means for forcibly cooling the condenser by water-cooling using condensed water falling into an evaporator drain plate in a predetermined portion of the case, and as an embodiment of the condensed water spraying means, one side of the evaporator drain plate And a condensate pump installed in the unit, at least one cooling water sprayer provided at a front side of the condenser at a predetermined interval, and a condensate supply pipe connecting the pump and the cooling water sprayer to each other. .

According to the present invention, it is possible to simplify the overall structure of the air conditioner by installing the existing indoor unit and the outdoor unit in a separate case, so that the installation of the air conditioner is easier, By switching the flow of the refrigerant to simply perform the cooling and heating function, and also by adding the ventilation function of the indoor air there is an advantage such as maximizing the cooling and heating efficiency by recovering the total amount of cold, hot waste heat energy in the exhaust air during ventilation.

Hereinafter, according to the embodiment shown in the accompanying drawings, the ventilation recovery rate adjustable waste heat recovery combined air-conditioning air conditioner according to the present invention is as follows.

1 is a partially cutaway perspective view showing a preferred embodiment of the ventilation recovery rate adjustable waste heat recovery combined air-conditioning air conditioner according to the present invention, Figure 2 and Figure 3 is a ventilation recovery rate adjustable waste heat recovery combined air-conditioning air conditioner according to the present invention 4 is an enlarged view of a portion A of FIG. 2, and FIG. 5 is a block diagram of the forced water sprinkling means which is a main part of the present invention.

In addition, Figure 6 is a block diagram of a refrigerant flow type heat pump to help the understanding of the overall configuration of the air-conditioning air conditioner combined with the recovery rate of waste heat recovery according to the present invention.

As shown in the drawing, the ventilation rate control waste heat recovery combined air-conditioning and air conditioner according to the present invention comprises a heat exchange chamber 20 for ventilation air supply and a heat exchange chamber 30 for recovery in one case 10. However, a predetermined space is maintained between the ventilation air supply heat exchange chamber 20 and the recovery heat exchange chamber 30, and a horizontal partition 40 is formed in the middle of the space to partition the space horizontally. On one side, the indoor air intake chamber 50 is formed, the other side is formed an outdoor air intake chamber 60, the air is discharged back to the room (R) to the indoor air intake chamber 50 By connecting and installing one single duct 70, the air introduced into the indoor air intake chamber 50 through the single duct 70 is located on the opposite side of the heat exchange chamber 20 for the ventilation air supply and recovery heat exchange It is comprised so that it may flow into the thread 30 by a predetermined ratio.

The heat exchange chamber 20 for ventilation air supply and the heat exchange chamber 30 for recovery have a conventional structure, and are not intended to be limitedly protected in the present invention.

A predetermined portion of the heat exchange chamber 20 for ventilation air supply is provided with an air outlet 21, an air supply blower 22, an evaporator 23, an evaporator drain plate 24, an expansion valve 25, and an air cleaning filter 26. And a predetermined portion of the recovery heat exchanger (30), an outdoor discharge port (31), an exhaust blower (32), a condenser (33), a condenser drain plate (34), an expansion valve (35), and the like. It is provided.

The expansion valve (25) (35) can be replaced by a capillary tube in the case of a small capacity, typically installed in the evaporator (23) and the condenser (33) for the smooth flow of the refrigerant in the refrigerant flow switching refrigeration unit It is designed to control the use as a non-return valve.

On the other hand, the indoor air intake chamber 50 and the outdoor air intake chamber 60 partitioned on both sides by the transverse bulkhead 40 are the heat exchange chamber 20 for the ventilation air supply and the heat exchange chamber 30 for recovery. And to maintain a separate space, the indoor air intake chamber 50, the indoor air intake port 51 to which a single duct 70 extending from the room (R) is connected, and the transverse bulkhead 40 ), Respectively, installed on both sides of the air conditioner to adjust the indoor air introduced into the single duct 70 to flow in a predetermined ratio to the heat exchange chamber 20 and the heat exchange chamber 30 for recovery air supply. A first damper 52, a second damper 53, which is a control damper for ventilation circulation, a temperature and humidity detector 54, and the like, and an outdoor air inlet 61 is provided in the outdoor air intake chamber 60. And an outdoor ball installed at both sides of the transverse bulkhead 40 and sucked into the outdoor air inlet 61. The third damper 62, which is an outside air utilization rate control damper, and the fourth damper 63, which is an outside air supply rate control damper, which controls the air to flow into the heat exchange chamber 20 for ventilation supply air and the heat exchange chamber 30 for recovery. And a compressor 64 and the like.

The first damper 52 and the second damper 53 of the indoor air suction chamber 50, and the third damper 62 and the fourth damper 63 of the outdoor air suction chamber 60 are indoors. It is arranged toward the recovery heat exchange chamber 30 and the ventilation air supply heat exchange chamber 20 in opposite directions with respect to the side air intake port 51 and the outdoor air intake port 61, respectively. The heat exchange chamber 30 and the recovery heat exchange chamber 30 are disposed so as to face in opposite directions to both side surfaces of the case 10, and the indoor air and the outdoor air suction chambers introduced into the indoor air suction chamber 50 are disposed. The outside air introduced into the 60 is distributed at a predetermined rate so as to flow in directions opposite to each other.

In addition, four predetermined reverse valves 65 and dampers 52 which determine cooling / heating according to a signal detected by the temperature and humidity detection unit 54 installed in the indoor air suction port 51 at predetermined portions of the case 10. The controller 66 is provided to individually control the opening degrees of the (53), (62), (63). According to the embodiment shown in the drawings, the case where the compressor 64, the four-way reversing valve 65 (4-way-valve) and the controller 66 in the outdoor air intake chamber 60 has been described, It is not necessarily limited to this, and may be installed in other suitable places. The compressor 64 may be installed on the outside of the case 10 according to the capacity of the ventilation rate adjustable waste heat recovery and air-conditioning air conditioner.

The first, second, third, and fourth dampers 52, 53, 62, and 63 are configured in a plurality of blade forms so as to automatically adjust angles using an actuator or the like. Operation can arbitrarily adjust the opening of the air flow passage. Opening operation of the first, second, third, and fourth dampers 52, 53, 62, and 63 may be performed manually, and a series of configurations thereof are general techniques, and the detailed drawings will be omitted.

The four branch reversing valve 65 plays a role of controlling the refrigerant flow during the switching of the heating and cooling operation, and may be replaced with four solenoid valves in some cases.

On the other hand, the ventilation recovery rate adjustable waste heat recovery and air-conditioning air conditioner according to the present invention includes condensate forced watering means for forcibly cooling the condenser 33 by using the condensed water dropped to the evaporator drain plate 24.

The condensate forced water spraying means includes a condensate pump 71 provided at one side of the evaporator drain plate 24 and a cooling water sprayer 72 provided at a front side of the condenser 33 at a predetermined interval. And a condensed water supply pipe 73 for connecting and installing the pump 71 and the cooling water sprayer 72.

The cooling water sprayer 72 is a pipe shape having a predetermined diameter and length is formed with a plurality of injection holes 74 at a predetermined interval at a position facing the condenser 33, in the embodiment shown in the figure Although the case where one cooling water sprayer 72 is provided was demonstrated, it is not limited to this, You may install two or more cooling water sprayer 72 in an up-down direction.

Reference numeral 80 in FIGS. 2 and 3 shows a refrigerant pipe, respectively.

Referring to Figures 2 and 3 the operation of the ventilation recovery rate adjustable waste heat recovery combined air conditioning air conditioner according to the present invention configured as described above with reference to the accompanying drawings.

First, Figure 2 shows the cooling mode of the air-conditioning air conditioning combined with the air recovery rate control waste heat recovery according to the present invention, the refrigerant pipe 80 and arrows indicated by the dotted line in the drawing indicates the refrigerant flow. In addition, the thick and thin arrows show the air flow route, where the white line is the flow route of the indoor air introduced from the room R side, and the black line is the flow route of the outside air introduced from the outdoor side. In addition, Figure 2 is a schematic plan view for explaining the state of the cooling mode, the first, second, third, fourth dampers (52, 53, 62, 63) to help understand the first, second, third, Four dampers 52, 53, 62 and 63 are shown in the side view.

As shown in the figure, the first damper 52, which is the control damper for ventilation recovery, and the second damper 53, which is the control damper for ventilation circulation, are provided on both sides of the indoor air suction chamber 50. When the opening degree is appropriately adjusted by the operation, the heated air discharged from the room R and supplied to the indoor air intake chamber 50 through the single duct 70 and the indoor air intake port 51 is vented. Each air flow route passes through the first and second dampers 52 and 53 by driving the air supply blower 22 and the exhaust blower 32 installed in the heat exchange chamber 20 and the heat exchange chamber 30 for recovery. Will flow along.

At this time, the air passing through the second damper 53 is filtered while passing through the filter 26, and is cooled by heat exchange while passing through the evaporator 23, the cooling air is cooled to the indoor air outlet 21 The air flows through the room (R), and the air heated in the room (R) again cools the room (R) by forming a cycle flowing back to the evaporator (23) through the single duct (70) and the air inlet (51). Will be.

On the other hand, the third damper 62, which is an outside air utilization control damper installed on both sides of the outdoor air intake chamber 60, and the fourth damper 63, which is an outside air supply rate adjusting damper, are properly adjusted by the controller 66. When the air is opened, the outside air supplied from the outside to the outdoor air intake chamber 60 through the outdoor air intake 61 passes through the condenser 33 to absorb the heat of condensation, and then the outdoor air outlet 31 is opened. By being discharged to the outside through the cooling of the room (R) is made.

In the cooling mode as described above, the opening degree of the second damper 53 and the third damper 62 is 70%, and the opening degree of the first damper 52 and the fourth damper 63 is 30%. When set to 70%, 70% of cold indoor air and 30% of hot outdoor air for ventilation passes through the evaporator 23 to remove heat, and the cooling air is supplied to the room R through the indoor outlet 21. Will be.

At this time, a large amount of condensate corresponding to the apparatus dew point temperature is generated in the evaporator 23 and collected by the evaporator drain plate 24. When a constant water level is secured in the evaporator drain plate 24, the condensate pump 71 The cooling water of the evaporator drain plate 24 is supplied along the condensate supply pipe 73 to be injected from the respective injection holes 74 of the cooling water sprayer 72 toward the condenser 33 to increase the condensation efficiency of the condenser 33. Will be improved.

That is, 70% of hot outdoor air discharged to the third damper 62 and 30% of cold indoor air discharged to the first damper 52 are mixed and lowered to a predetermined temperature for ventilation. By removing heat from the condenser 33 by passing through the condenser 33, the condensation efficiency of the condenser 33 is improved by the water cooling method and the air cooling method described above.

On the other hand, as shown in Figure 3, in the heating mode, the principle of the heat pump adopts the refrigerant flow switching equation, the refrigerant flow of the refrigerant pipe 80 and the arrow shown in the dotted line is opposite to the case of the cooling mode of FIG. Proceed. That is, the role of the condenser 33 and the evaporator 23 in the cooling mode changes to the evaporator 33 and the condenser 23, respectively. However, the airflow route consisting of thick and thin arrows does not change.

As shown in the figure, the first damper 52, which is the control damper for ventilation recovery, and the second damper 53, which is the control damper for ventilation circulation, are provided on both sides of the indoor air suction chamber 50. When the opening is appropriately adjusted and opened by the operation, the first cooling air discharged from the room R is supplied to the indoor air suction chamber 50 through the single duct 70 and the indoor air suction port 51. And a second damper 53 to flow along each air flow route.

At this time, the air passing through the second damper 53 is filtered while passing through the filter 26, the heat exchange is heated while passing through the condenser 23, the hot air is the indoor air outlet 21 Flows to the room (R) through the air, and the air cooled in the room (R) again forms a cycle flowing through the condenser (23) again through the single duct 70 and the indoor air intake port 51 to heat the room (R). It is to be made.

On the other hand, the third damper 62, which is the outside air utilization control damper installed on both sides of the outdoor air intake chamber 60, and the fourth damper 63, which is the outside air supply rate regulating damper, are appropriately adjusted by the operation of the controller 66. When opened, the outside air supplied from the outside to the outside air intake chamber 60 through the outside air intake 61 passes through the evaporator 33 in which the role is changed, and then the outdoor air outlet 31 By discharging to the outside through) the heating of the room (R) is made.

In the heating mode as described above, the opening degree of the second damper 53 and the third damper 62 is 70%, and the opening degree of the first damper 52 and the fourth damper 63 is 30%. If set to, 70% of hot indoor air and 30% of cold outdoor air for ventilation are warmed through the evaporator 23 and the warm air is supplied to the room R through the indoor outlet 21. .

In addition, 70% of cold outdoor air discharged to the third damper 62 and 30% of hot indoor air discharged to the first damper 52 are mixed for ventilation, and the temperature is raised to a predetermined temperature. Since the evaporator 33 passes, the evaporator 33 improves the evaporation efficiency of absorbing heat.

As described above, according to the present invention, the ventilation rate control waste heat recovery combined air-conditioning and air conditioner according to the present invention is built in an existing indoor unit (evaporator) and outdoor unit (condenser) in a separate case so that it is not necessary to install a separate outdoor unit. In addition to simplifying the overall structure of the air conditioner, the air conditioner can be installed more easily, and the cooling and cooling functions can be performed simply by switching the flow of refrigerant. By adding the ventilation function of the indoor air, it has the effect of maximizing the cooling and heating efficiency by recovering all the cold and hot waste heat energy in the exhaust air during ventilation.

Claims (2)

An evaporator and a condenser are installed inside a case, and the four-way reversing valve switches the flow direction of the refrigerant to perform the cooling and heating function.The damper simultaneously controls the introduction of outdoor air and the discharge of indoor air to simultaneously control ventilation and heating. In the heating and cooling air conditioner to perform, One side of the case 10 includes an interior discharge port 21, an air supply blower 22, an evaporator 23, an evaporator drain plate 24, an expansion valve 25, and an air cleaning filter 26. The heat exchange chamber 20 for ventilation air supply is installed, On the other side of the case 10, a heat exchange chamber 30 for recovery including an outdoor discharge port 31, an exhaust blower 32, a condenser 33, a condenser drain plate 34, and an expansion valve 35 is provided. Installed, The space portion between the heat exchange chamber for ventilation air supply and the heat exchange chamber for recovery is partitioned in the horizontal direction by a transverse bulkhead 40, On one side of the transverse bulkhead 40, an indoor air intake chamber 50, in which an indoor air intake port 51 into which indoor air flows, is opened, the indoor air intake chamber 50, and the recovery for A first damper 52 which is a ventilation damping control damper that partitions the heat exchange chamber 30 and controls an opening degree of the air flow passage, the indoor air suction chamber 50, and the heat exchange chamber 20 for ventilation supply air. And a second damper 51, which is a control damper for ventilation circulation, which controls the opening degree of the air flow passage, On the other side of the transverse bulkhead 40, an outdoor air intake chamber 60 in which an outdoor air inlet 61 into which outdoor air is introduced is opened, the outdoor air intake chamber 60 and the recovery A third damper 62 which is an external air utilization rate control damper which partitions the heat exchange chamber 30 and adjusts the opening degree of the air flow passage, the outdoor air suction chamber 60, and the heat exchange chamber 20 for ventilation supply air. And a fourth damper 63, which is an air supply rate control damper for adjusting the opening degree of the air flow passage, at the same time, At least one cooling water sprayer 72 provided at a front side of the condenser 33 at predetermined intervals, and a condensate water dropping to the evaporator drain plate at one side of the evaporator drain plate 71 at a constant level When the condensate pump 71 forcibly circulated to the cooling water sprayer side, and the condensate water supply pipe (73) connecting and installing the condensate water pump 71 and the cooling water sprayer 72 condensate that falls to the evaporator drain plate Ventilation recovery rate adjustable waste heat recovery combined cooling and heating air conditioner, characterized in that it comprises a forced condensate spraying means for forced cooling by water. delete