KR200375778Y1 - Space Saving Type Ventilation Withdrawal Rate Adjustment Waste Heat Withdrawal Combined Cold and Heat Air Conditioner - Google Patents

Abstract

The present invention divides the first heat exchange chamber, in which the first heat exchanger and the first blower are installed, and the second heat exchange chamber, in which the second heat exchanger and the second blower are installed, are arranged in parallel in a single case. The indoor air inlet and the outdoor air inlet through which the outdoor air flows are provided with a damper and are arranged so that the air flow crosses at one end of the case.

Accordingly, the present invention minimizes unnecessary space occupied by the device and efficiently saves installation space.

In addition, the piping of the refrigerant pipe between the heat exchanger is short and simple to minimize the heat loss and pressure loss due to the flow of the refrigerant, and also reduce the piping cost.

Description

Space Saving Type Ventilation Withdrawal Rate Adjustment Waste Heat Withdrawal Combined Cold and Heat Air Conditioner}

The present invention relates to a ventilation recovery rate controlled waste heat recovery combined air-conditioning air conditioner, and to improve it to a space-saving structure.

Conventional ventilation recovery rate regulating waste heat recovery and air-conditioning air conditioner improves the efficiency of condenser or evaporator by utilizing heat pump air-conditioning as well as waste heat from the air exhausted from the inside of the room. By exchanging ventilate is to act.

This prior art is well represented in the "ventilation rate controlled waste heat recovery combined heating and cooling air conditioner" of the Republic of Korea Patent No. 354132 shown in Figures 1 to 3.

The technology shown in the Republic of Korea Patent No. 354 132 is generally in one case without separating the indoor unit (evaporator in cooling mode, condenser in heating mode) and outdoor unit (condenser in cooling mode, evaporator in heating mode). It has a built-in damper system that can properly mix outdoor air and indoor air.

Referring to Figures 1 to 3 in more detail the configuration of the prior art, the first heat exchange chamber 20 is provided with a first exchanger in a single case (1), the second heat exchange chamber (2) 30 is integrally formed, and a predetermined space portion is formed between the first heat exchange chamber 20 and the second heat exchange chamber 30, and the partition wall 40 divides the space into two portions in the center of the space portion, and the partition wall Based on (40), one side space includes an indoor side air suction chamber 50 and the other side includes an outdoor side suction air chamber 60, and dampers formed on both side surfaces of the indoor and outdoor side air chambers 50 and 60. And (52,53,62,63).

The first heat exchange chamber 20 is provided with an indoor outlet 21, an air supply blower 22, an evaporator 23, an evaporator drain plate 24, an expansion valve 25, an air cleaning filter 26, and the like. do.

The second heat exchange chamber 30 is provided with an outdoor side discharge port 31, an exhaust blower 32, a condenser 33, a condenser drain plate 34, an expansion valve 35, and the like.

The indoor air intake chamber 50 has an indoor air inlet 51 to which a single duct 70 extending from the inside of the building is connected, and the air introduced from the inside of the room comprises a first heat exchange chamber 20 and a second heat exchange chamber. The first damper 52, the second damper 53, and the like, which are arranged to flow in a predetermined ratio, are provided at 30.

The outdoor side air intake chamber 60 is divided into a predetermined ratio by dividing the outdoor side air inlet 61 and the outdoor side air into the first heat exchange chamber 20 and the second heat exchange chamber 30. The third damper 62, the fourth damper 63, the compressor 64, and the like, which are adjusted to flow in the air, are installed.

The controller 66 determines whether the controller 66 is air-conditioned according to a signal detected by a temperature-humidity detection unit (not shown) in the case 1 to control the opening of the four-return valve 65 and the dampers.

Figure 2 is a diagram illustrating the operation in the cooling mode of the conventional air-conditioning combined heat recovery and cooling air-conditioning air conditioner, it is assumed that the amount of 30% when replacing the ambient air when circulating the indoor air.

In this case, the opening degree of the second damper 53 and the third damper 62 is set to about 70%, and the opening degree of the first damper 52 and the fourth damper 63 is set to 30%.

After the indoor and outdoor air enters the air inflow passage 600, 30% of the hot outdoor air for ventilation through the second damper 53 and 70% of the cold outdoor air through the fourth damper 63 is exchanged for the first heat exchange. After being introduced into the chamber 20 and mixed in the air mixing space 610, the mixture is cooled by heat exchange while passing through the evaporator 23, and then supplied to the room through the indoor air outlet 21.

In addition, after the 30% of cold indoor air and the 70% of hot outdoor air enter the second heat exchange chamber 30 through the first damper 52 and the third damper 62, the condenser 33 is mixed. After absorbing the condensation heat while passing through, it is discharged to the outside through the outdoor air discharge port (31).

In the heating mode shown in FIG. 3, the flow of air is the same as that of the cooling mode, and the refrigerant flow is switched to the four reverse valves 65 to convert the evaporator 23 into a condenser and the condenser 33 into an evaporator. Heating is done.

The prior art as described above has the advantage that can improve the efficiency of the condenser and the evaporator, and can also be ventilated at the same time heating and cooling, there are the following problems.

First, since the air conditioner is composed of the indoor unit and the outdoor unit, there is a problem in that a large installation space is secured by increasing the volume of the apparatus.

In particular, as shown in FIGS. 1 to 3, the air inlet passage 600 should be secured in the middle of the apparatus, and the size of the apparatus becomes larger due to the passage, thereby requiring a larger installation space.

In addition, since the air introduced from the indoor and outdoor is preferably mixed in the space formed between the damper and the heat exchanger, an air mixing space 610 as shown in FIGS. 2 and 3 must be secured between the damper and the heat exchanger. However, due to the air mixing space 610, the size of the device becomes larger, and thus there is a problem that a larger installation space is required.

If the air mixing space 610 is not sufficiently secured, as shown in FIGS. 2 and 3, the indoor air (white arrow) passing through the top of each heat exchanger and the bottom of the heat exchanger are shown. Due to the temperature difference of the outdoor air (black arrow) passing through, even in the same heat exchanger, a non-uniform heat exchange action occurs depending on the position and the overall heat exchange efficiency decreases.

In addition, the conventional air conditioner is installed in a row in the main components in the transverse direction, in this case, the design of the device is easy, but there is a problem that the shape of the installation space must be secured in a rectangular shape accordingly. That is, depending on the building, there may be a place where there is not enough space in the longitudinal direction or an obstacle such as a building pillar. In this case, since a long rectangular installation area cannot be secured, it is impossible to install an integrated air conditioner as in the conventional art. It becomes

In the conventional air conditioner, since components such as an air inlet passage, a damper, and a filter are disposed in the middle of the first heat exchanger and the second heat exchanger, both heat exchangers are located far from each other. Accordingly, the refrigerant pipe is lengthened, so that when the refrigerant flows, a large amount of heat loss and pressure loss are unnecessarily generated, and device material costs are also required.

In addition, in a conventional air conditioner, the heat exchange coil size of an outdoor unit (a condenser for cooling, an evaporator for heating) should be larger than an indoor unit (evaporator for cooling, a condenser for heating).

Therefore, although the size of the first heat exchange chamber 20 corresponding to the indoor unit is smaller than the size of the second heat exchange chamber 30 corresponding to the outdoor unit in the related art, it is reasonable to manufacture the second heat exchange chamber 30 and the first heat exchange chamber. When the heat exchange chambers 20 are arranged in series in a row, the heat exchange chambers 20 are manufactured to have the same width and height inevitably for the convenience of manufacturing.

As a result, a problem arises that unnecessary space is generated in the first heat exchange chamber 20, and a problem such as an increase in the material cost of the device structure also occurs due to the enlargement of the entire apparatus.

The present invention has been proposed to solve the above problems of the prior art, and the second heat exchange chamber and the first heat exchange chamber can be arranged in parallel in a single case, thereby making the overall shape of the device close to square. The object is to create a device that is less constrained by the installation space than the prior art.

In addition, the present invention has an object to save the space occupied by the device by removing the air inlet passage 600 of the prior art.

In addition, the present invention has the purpose to prevent unnecessary space in the device by making the case according to the heat exchange coils of different sizes used in the heat exchanger installed in the first and second heat exchange chamber, and to achieve the compactness of the device .

The present invention is a device structure capable of smoothly mixing the air even if the size of the air mixing space 610 of the prior art, which is a space where the air introduced from the indoor and outdoor, respectively, is mixed between the damper and the heat exchanger Has a different purpose to serve.

The present invention has the purpose of minimizing heat loss and pressure loss when the refrigerant flows by shortening the length of the refrigerant pipe by arranging the first heat exchanger and the second heat exchanger adjacent to each other to shorten the material cost.

The present invention has another object to reduce the material cost required to manufacture the structure in the device by reducing the size of the entire device by minimizing the unnecessary space of the device.

The present invention divides the first heat exchange chamber, in which the first heat exchanger and the first blower are installed, and the second heat exchange chamber, in which the second heat exchanger and the second blower are installed, are arranged in parallel in a single case. The indoor air inlet and the outdoor air inlet through which the outdoor air flows are provided with a damper and are arranged so that the air flow crosses at one end of the case.

Referring to the embodiments shown in the accompanying drawings, the present invention, which is characterized in such a configuration as described in detail as follows.

Figure 4 is a partial cutaway perspective view showing an embodiment of a space-saving ventilation recovery rate adjustable waste heat recovery combined air conditioning air conditioner according to the present invention, Figure 5 is a plan view of the embodiment, Figure 6 is a side view of the embodiment AA, Figure 7 Is a side view of the BB of the Example.

As shown in FIG. 4, the present invention provides a first heat exchanger chamber 110 and a second heat exchanger 220 in which a first heat exchanger 130 and a first blower 120 are installed in a single case 100. ) And a second heat exchange chamber 200 in which the second blower 210 is installed.

The first heat exchange chamber 110 and the second heat exchange chamber 200 are divided into partitions 250, and the first heat exchange chamber 110 and the second heat exchange chamber 200 are disposed in parallel with the partition walls therebetween. Is arranged.

By such a parallel configuration, as shown in FIG. 4, the first heat exchanger 130 and the second heat exchanger 220 may be arranged side by side adjacent to each other with the partition wall 250 interposed therebetween.

Accordingly, since the piping of the refrigerant pipe is connected to the shortest distance through the partition wall, the length and structure thereof are short and simple. Therefore, the flow distance of the refrigerant is minimized, and heat loss and pressure loss due to the flow of the refrigerant are also minimized.

The indoor air inlet 300 and the outdoor air inlet 400 are driven to one end of the case 100 and positioned in front of the heat exchangers 130 and 220. At this time, the indoor air inlet 300 and the outdoor air inlet 400 are arranged to cross orthogonally as shown in the figure so that the flow of the indoor air and the outdoor air that flows in may cross.

In addition, the indoor air inlet 300 and the outdoor air inlet 400 are provided with first to fourth dampers 310, 320, 410 and 420, respectively.

In particular, the indoor air inlet 300 is connected to the duct 500 extending into the room.

Each heat exchange chamber has a basic configuration in which a heat exchanger and a blower are sequentially arranged after the air inlet.

Looking at the components disposed in the first heat exchange chamber 110 in detail, the filter 150, the first heat exchanger 130 and the first blower following the indoor air inlet 300 and the outdoor air inlet 400 120 and the indoor discharge port 140 are sequentially arranged.

In the second heat exchange chamber 200, the vinyl chloride filter 240, the second heat exchanger 220, the second blower 210, and the outdoor discharge port are formed after the indoor air inlet 300 and the outdoor air inlet 400. 230) and so on.

Compressors, expansion valves, four-way valves, and the like can also be arranged at appropriate locations in the apparatus as in the prior art, and FIG. 5 shows an example of a refrigerant pipe in which the expansion valve 35 and the compressor 64 are disposed.

The first heat exchanger 130 functions as an evaporator in a cooling mode, a condenser in a heating mode, and the second heat exchanger 220 functions as a condenser in a cooling mode and an evaporator in a heating mode.

The first to fourth dampers 310, 320, 410, and 420 installed at the indoor air inlet 300 and the outdoor air inlet 400 are formed in a blind shape, and are respectively opened and closed at a predetermined angle. By introducing indoor and outdoor air, ventilation and waste heat energy recovery can be performed. The damper may be any type other than the blind type as long as it can control the flow rate of air.

The indoor air inlet 300 is installed at one side of the first heat exchange chamber 110 and the second heat exchange chamber 200, respectively, and the first damper 310 and the second damper 320 are respectively installed in the inlet. do.

Similarly, the outdoor air inlet 400 is also provided at one side of the first heat exchange chamber 110 and the second heat exchange chamber 200, and the third damper 410 and the fourth damper 420 are respectively formed in the inlet frame. Is installed.

The degree of opening of the dampers is controlled by a controller (not shown), and the indoor air and outdoor air introduced through the dampers opened at a predetermined ratio are mixed with each other in the air mixing space 610 and flow to the heat exchanger.

The outdoor air inlet 400 and the indoor air inlet 300 are formed on the upper and side surfaces of the case 100, respectively. Therefore, the indoor air introduced from the indoor air inlet 300 and the outdoor air introduced from the outdoor air inlet 400 are encountered at right angles to each other in the air mixing space 610, and thus, the space of the air mixing space 610. Even though this is small, the inlet air is quickly mixed with each other to form a single temperature of mixed air, and since the single temperature of the mixed air passes through the heat exchanger, the heat exchange action occurs evenly over the entire surface of the heat exchanger coil, thereby improving heat exchange efficiency. .

The mixed air passes through a filter while flowing to the heat exchanger.

The filter 150 formed in the first heat exchange chamber 110 functions to filter foreign substances such as dust, bacteria, pollen, and odor contained in the air. Since a variety of filters are known, they can be appropriately selected and used according to the object to be filtered or the amount of air.

The vinyl chloride filter 240 formed in the second heat exchange chamber 200 serves to filter large dust particles of air discharged to the outside, and may be omitted depending on the use environment.

The mixed air passing through the filter undergoes heat exchange while passing through the first heat exchanger 130 and the second heat exchanger 220, respectively. At this time, since the area of the heat exchange coil that exchanges heat with air discharged to the outside does not have to be large, the width L1 of the first heat exchange chamber 110 is smaller than the width L2 of the second heat exchange chamber 200 as shown in FIG. 5. It can be designed and the installation space can be reduced by that much.

The first blower 120 and the second blower 210 is a device responsible for conveying and boosting the air, and the air blower 300 is opposite to the indoor air inlet 300 installed at one side of the case 100 in the longitudinal direction. It is installed in the final position past the heat exchanger.

The first blower 120 receives the heat-exchanged air through the first heat exchanger 130 and discharges the air into the room through the indoor side outlet 140.

The second blower 210 receives the heat exchanged air through the second heat exchanger 220 and discharges the air to the outside through the outdoor side discharge port 230.

As shown in FIG. 7, the electric heater 180 is installed in the first heat exchange chamber 110 as necessary to increase the temperature inside the case 100 in a cold weather, thereby preventing the temperature and vapor pressure of the refrigerant from being lowered. You can also do that.

Space-saving ventilation recovery rate adjustable waste heat recovery combined air-conditioning air conditioner having the above configuration will be described by dividing the operation principle into a cooling mode and a heating mode centered on the flow of air.

5 shows the flow of the refrigerant in the cooling mode according to the present invention.

Dotted lines indicate refrigerant piping and arrows indicate refrigerant flow. The thick arrows indicate the air flow, and the air from the outside and the inside is mixed and mixed in the space between the heat exchanger and the damper.

The air discharged from the room through the indoor air inlet 300 is introduced into the air mixing space 610 of the first heat exchange chamber 110 and the second heat exchange chamber 200, respectively.

Similarly, the air introduced from the outside is also introduced into the air mixing space 610 of the first heat exchange chamber 110 and the second heat exchange chamber 200 via the outdoor air inlet 400.

As described above, since the air flowing in the indoor space and the air flowing in the outdoor space cross each other in the air mixing space 610, mixing of both air is performed quickly. Therefore, the air mixing space 610 can be designed to make the size of the space much smaller than the conventional apparatus shown in Figure 1, it can save the installation space by that much.

Herein, the first damper 310, the second damper 320, the third damper 410, and the fourth damper 420 are formed in the indoor air inlet 300 and the outdoor air inlet 400 in the cooling mode. The operation of controlling the amount of air introduced from the inside and the air introduced from the outside by controlling the degree will be described.

If it is assumed that about 30% of the circulating indoor air is vented every one cycle, the first damper 310 is installed at the indoor air inlet 300 where the duct 500 through which the indoor air is discharged is branched and connected. ) And the damper opening of the second damper 320 is controlled by the controller.

That is, the first damper 310 maintains 70% openness because the indoor air flows back to the indoor side, and the second damper 410 maintains 30% openness because the indoor air discharged to the outdoor side flows in. do.

Similarly, the third damper 410 that controls the amount of air introduced into the room from the outside is open enough to allow 30% of the circulating indoor air to flow in, and the fourth damper 420 may be introduced into the remaining 70%. Control the opening degree.

Accordingly, in the first heat exchange chamber 110, cold air introduced from the inside and outdoor hot air are mixed at a 7: 3 ratio, filtered through the filter 150, and the first heat exchanger 130 acting as an evaporator. Heat is cooled by passing through.

The cooling air is sucked into the first blower 120 and flows into the room through the indoor air outlet 140, and after cooling the room, the cycle flows back to the evaporator through the duct 500 and the indoor air inlet 300 again. It continues to circulate to cool the room.

On the other hand, the cold air in the room and the outdoor hot air introduced from the second damper 320 and the fourth damper 420 are mixed in a 3: 7 ratio while passing through the second heat exchanger 220 acting as a condenser. After absorbing the heat of condensation, it is discharged to the outside through the second air blower 210 through the outdoor side discharge port 230.

At this time, 70% of outdoor hot air passing through the fourth damper 420 and 30% of indoor cold air introduced from the second damper 320 are mixed to lower a predetermined temperature, and the mixed air is condenser. By removing heat from the condenser while passing through, it is possible to improve the efficiency of the condenser.

In the heating mode, the four-way valve (not shown) is used to reverse the flow of the refrigerant so that in the cooling mode, the first heat exchanger 130 as an evaporator is replaced with a condenser and the second heat exchanger 220 as a condenser so as to function. The basic operation is the same as that of the cooling mode.

However, in the case of cold weather, since the temperature of the refrigerant of the condenser which is the first heat exchanger 130 is low and the vapor pressure of the refrigerant is low at the initial heating, a phenomenon in which sufficient efficiency cannot be exhibited may occur.

Therefore, as shown in FIG. 7, the electric heater 180 may be installed at one side of the first heat exchanger to prevent the temperature and vapor pressure of the refrigerant from decreasing at the initial stage of heating, thereby reducing the efficiency of the air conditioner and preventing the failure of the device. have.

The ventilation ratio of the indoor air is controlled by a user not shown in consideration of a place where the ventilation rate is high and a place where the ventilation rate is high due to high air pollution.

For example, in a multi-use place such as a theater or a shopping center, the ratio of indoor and inflow air through the first damper 310 and the third damper 410 is about 7: 3, 6: 4, and the ventilation rate is at least. In places such as offices, it can be used in various ways such as 8: 2 and 9: 1. Of course, in this case, the inflow rate of the indoor and outdoor air through the second damper 320 and the fourth damper 420 is adjusted to be opposite to the ratio.

As described above, the present invention is a space-saving ventilation recovery rate adjustable waste heat recovery air conditioner combined with the first heat exchange chamber 110 and the second heat exchange chamber 200 in a compact, parallel installation space in the building Installation is possible even without this.

In addition, the above-described parallel configuration eliminates the need for the air inlet passage 600 in the prior art as shown in FIG. 1 inside the case 100, thereby reducing the total space occupied by the device much more than in the prior art.

In addition, as described above, the air conditioner is configured by making the width of the first heat exchange chamber 110 of the first heat exchanger 130 having a smaller heat exchange load than the second heat exchanger 220 having a larger size of the heat exchange coil. A more compact optimal design of the system is possible.

In addition, due to the parallel configuration, as illustrated in FIG. 4, the first heat exchanger 130 and the second heat exchanger 220 may be arranged side by side with the partition 250 interposed therebetween, thereby piping the refrigerant pipe. It is short and simple, so that the flow of refrigerant can flow in the shortest distance, thereby minimizing heat loss and pressure loss due to the flow of refrigerant, and reducing the cost of piping equipment.

In addition, the present design is because the flow of air introduced from the indoor and outdoor orthogonal in the air mixing space 610, the inlet air is quickly mixed with each other to become a mixed air of a single temperature design the air mixing space 610 small It can save installation space.

As such, the present invention eliminates the air inflow passage 600 of the prior art, reduces the air mixing space 600, and reduces the width of the first heat exchange chamber 110. It also reduces the material required to manufacture the case. In addition, the refrigerant pipe piping is also very short, further reducing the material cost effect.

1 is a partial cutaway perspective view of an air conditioner according to the prior art.

Figure 2 is a schematic diagram for explaining the operation of the cooling mode of the prior art.

Figure 3 is a schematic diagram for explaining the operation of the heating mode of the prior art.

Figure 4 is a partial cutaway perspective view showing an embodiment of a space-saving ventilation recovery rate adjustable waste heat recovery combined air conditioning air conditioner according to the present invention.

5 is a plan view of an embodiment of the present invention.

Figure 6 is a side view of A-A of the present invention embodiment.

Figure 7 is a side view of B-B of the present invention embodiment.

※ ?? Explanation of symbols for main parts of drawing ※

100: case 110: the first heat exchange room

120: first blower 130: first heat exchanger

140: indoor side outlet 150: filter

200: second exchange room

210: second blower 220: second heat exchanger

230: outdoor side outlet 240: vinyl chloride filter

300: indoor air inlet 310: first damper

320: second damper 400: outdoor air inlet

410: third damper 420: fourth damper

500: duct 600: air inflow passage

Claims (3)

The first heat exchanger chamber 110 in which the first heat exchanger 130 and the first blower 120 are installed in the single case 100, and the second heat exchanger 220 and the second blower 210 are installed. In the air conditioner constituted of the second heat exchange chamber 200, The first heat exchange chamber 110 and the second heat exchange chamber 200 are divided into partitions 250, and the first heat exchange chamber 110 and the second heat exchange chamber 200 are arranged in parallel with the partition walls therebetween. Will be arranged, An indoor air inlet 300 and an outdoor air inlet 400 are installed at one end of the first heat exchange room 110 and the second heat exchange room 200, and the indoor air inlet 300 and the outdoor air inlet 400 are provided. In order to intersect the flow of indoor air and outdoor air flowing through it is arranged to be perpendicular to each other on the top and side of the case, In the frame of the indoor air inlet 300 and the outdoor air inlet 400, the first to fourth dampers 310, 320, 410, 420 for adjusting the air inflow is provided, respectively, Air recovery unit with adjustable waste heat recovery. The method of claim 1, Space-saving ventilation recovery rate adjustment, characterized in that the width L1 of the first heat exchange chamber 110 for heat exchange of the air introduced into the room is smaller than the width L2 of the second heat exchange chamber 200 for heat exchange with the air discharged to the outside. Waste heat recovery combined use air conditioner. The method according to claim 1 or 2, The first heat exchanger 130 installed in the first heat exchange chamber 110 and the second heat exchanger 220 installed in the second heat exchange chamber 200 are installed side by side with the partition 250 therebetween. Space-saving ventilation recovery rate adjustable waste heat recovery combined air conditioner, characterized in that for connecting the refrigerant pipe between the first heat exchanger 130 and the second heat exchange chamber 200 through the partition 250 in the shortest distance.