WO2009005321A2 - Cold and heat air conditioner - Google Patents

Cold and heat air conditioner Download PDF

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Publication number
WO2009005321A2
WO2009005321A2 PCT/KR2008/003947 KR2008003947W WO2009005321A2 WO 2009005321 A2 WO2009005321 A2 WO 2009005321A2 KR 2008003947 W KR2008003947 W KR 2008003947W WO 2009005321 A2 WO2009005321 A2 WO 2009005321A2
Authority
WO
WIPO (PCT)
Prior art keywords
air
indoor
supplied
heating
outdoor
Prior art date
Application number
PCT/KR2008/003947
Other languages
French (fr)
Other versions
WO2009005321A3 (en
Inventor
Sang Kee Baik
Gi Bum Park
Original Assignee
Sang Kee Baik
Gi Bum Park
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sang Kee Baik, Gi Bum Park filed Critical Sang Kee Baik
Publication of WO2009005321A2 publication Critical patent/WO2009005321A2/en
Publication of WO2009005321A3 publication Critical patent/WO2009005321A3/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/044—Systems in which all treatment is given in the central station, i.e. all-air systems
    • F24F3/0442—Systems in which all treatment is given in the central station, i.e. all-air systems with volume control at a constant temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/04—Air-mixing units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
    • F24F1/022—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28—Arrangement or mounting of filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/54—Heating and cooling, simultaneously or alternatively

Definitions

  • the present invention relates to a heating and cooling air conditioner, and more particularly, to a heating and cooling air conditioner capable of implementing a heating and cooling unit in a packaged structure to realize outdoor-air cooling including cooling, heating, and ventilating, being installed anywhere, that is, indoors or outdoors without spatial limitations, obtaining excellent heating and cooling efficiency, and maintaining a constant temperature of a machine room including a compressor or the like, thereby maximizing the compressor efficiency.
  • a heating and cooling air conditioner capable of implementing a heating and cooling unit in a packaged structure to realize outdoor-air cooling including cooling, heating, and ventilating, being installed anywhere, that is, indoors or outdoors without spatial limitations, obtaining excellent heating and cooling efficiency, and maintaining a constant temperature of a machine room including a compressor or the like, thereby maximizing the compressor efficiency.
  • an air flow change type air conditioner for selectively changing flows of the indoor- air and the outdoor- air to be supplied to a condenser and an evaporator, or mixing the indoor-air with the outdoor- air at a proper ratio to be divided and supplied to condenser and the evaporator has been widely used.
  • an air conditioner having a single condenser and a single evaporator can perform both heating and cooling functions, recover waste heat from the exhausted outdoor-air by using an outdoor unit to increase heating and cooling efficiency, and obtain an indoor-air ventilation effect.
  • the disclosed heating and cooling air conditioner includes an indoor unit (an evaporator in a cooling mode and a condenser in a heating mode) and an outdoor unit (a condenser in the cooling mode and an evaporator in the heating mode) in a single main body and a damper system for properly mixing the outdoor- air with the indoor- air.
  • the present invention provides a heating and cooling air conditioner capable of implementing a main body having separated air supply, air exhaust, and air mixing functions in a packaged structure to supply fresh air to an indoor side and maintaining a constant temperature at any part by completely mixing the indoor-air with the outdoor-air before the air is supplied to a front portion of a heat exchanger.
  • the present invention also provides a heating and cooling air conditioner which can be easily installed and transported at any indoor or outdoor position without spatial limitations due to the packaged structure of the main body so as to be easily treated, managed, and repaired.
  • the present invention also provides a heating and cooling air conditioner which includes a machine room including a compressor or the like as an additional independent chamber to be supplied with the indoor-air at the constant temperature so as to implement an optimal machine room operating environment, thereby maximizing the compressor efficiency.
  • a heating and cooling air conditioner including: an air supply chamber which includes an air supply fan, has a side surface through which the air is supplied, and an air supply inlet through which the air is supplied to an indoor side; an air exhaust chamber which includes an air exhaust fan, has a side surface through the air is supplied, and an air exhaust outlet through which the air is exhausted to an outdoor side; a mixing chamber which is disposed between the air supply chamber and the air exhaust chamber to enable air to be flown to the chambers through side surfaces of the mixing chamber, and has an internal space that is partitioned into independent spaces by a barrier to separately include first and second heat exchangers so as to allow the independent space to have an outdoor-air inlet and an indoor-air inlet and the other independent space to have an outdoor-air inlet; and a machine room which includes a compressor connected to the first and second heat exchangers through a refrigerant pipe, has a structure to be integrated to a side of the mixing chamber and simultaneously connected to the air exhaust side space
  • the indoor- air inlet of the mixing chamber and the indoor- air inlet of the machine room may be connected to each other by a duct extended from the indoor side to be supplied with different amounts of indoor-air supplied through the duct according to controlled drafts of dampers of the inlets at a proper ratio.
  • the duct may include a guide extended from the inlets by a predetermined length to serve as a partition between the indoor-air inlets to prevent drifts of the indoor- air and properly divide the air.
  • the air supply chamber, the air exhaust chamber, and the mixing chamber with the machine room may be manufactured as three independent assemblies or constructed in one body.
  • each of the first and second heat exchangers may include a filter unit provided to a front portion to be protected from external contaminated air.
  • the second heat exchanger may further include a sprinkler unit such that in a case where the second heat exchanger is operated as a condenser, condensed water generated by an evaporator that is the first heat exchanger and water supply are compulsively sprayed or sprinkled to a condenser coil.
  • FIG. 1 is a perspective view illustrating a heating and cooling air conditioner according to an embodiment of the present invention.
  • FIG. 2 is a front view illustrating the heating and cooling air conditioner according to the embodiment of the present invention.
  • FIG. 3 is a top plan view illustrating the heating and cooling air conditioner according to the embodiment of the present invention.
  • FIG. 4 is a side view illustrating the heating and cooling air conditioner according to the embodiment of the present invention.
  • FIG. 5 is a top plan view illustrating operation states of the heating and cooling air conditioner in heating and cooling modes according to the embodiment of the present invention.
  • FIG. 6 is a top plan view illustrating operation states of the heating and cooling air conditioner in an outdoor-air cooling mode.
  • FIG. 1 is a perspective view illustrating a heating and cooling air conditioner according to an embodiment of the present invention.
  • the heating and cooling air conditioner includes three main bodies 29a, 29b, and 29c that can be integrated and separated and are implemented as chambers having functions of supplying air inwardly, exhausting air outwardly, and mixing the indoor- air with the outdoor- air.
  • the main bodies 29a and 29c disposed on the left and the right are implemented as an air supply chamber for supplying air inwardly and an air exhaust chamber, respectively, and the main body 29b disposed at the center is implemented as a mixing chamber for mixing the air supplied from an outdoor side with the air flown inwardly or directly inhaling the outdoor-air.
  • Each of the main bodies 29a, 29b, and 29c is manufactured to be an assembly, and the main bodies 29a, 29b, and 29c can be integrated in a row in one body to be used.
  • the main body 29b disposed at the center has a structure to be connected to the main bodies 29a and 29c through side surfaces contacting the main bodies 29a and 29c when integrated to enable the air to flow in a predetermined direction.
  • main bodies 29a, 29b, and 29c may be connected through a well- known flange connection structure including a sealing structure.
  • the main body 29b disposed at the center is constructed with a machine room 23 including attachments for heating and cooling such as a compressor 22.
  • the machine room 23 is connected to a space through which air is exhausted from the mixing chamber, so that the air flown into the machine room 23 may have a flow to the space for exhausting air from the mixing chamber.
  • the heating and cooling air conditioner according to the present invention is constructed so that the air supply side and the air exhaust side are separated from each other. Therefore, fresh air can be supplied.
  • the heating and cooling air conditioner has a three-level proportional structure, the heating and cooling air conditioner can be easily installed and transferred.
  • each main body is constructed to be compact in a packaged structure, and an outdoor unit, a compressor unit, a control panel, a duct, and the like are not exposed to the outside of the heating and cooling air conditioner, so that limitations to an installation space can be reduced and a building space can be effectively used.
  • FIGS. 2, 3, and 4 are a front view, a top plan view, and a side view illustrating the heating and cooling air conditioner, respectively, according to the embodiment of the present invention.
  • the inner portion of the main body 29a that functions as the air supply side is implemented as an air supply chamber 12 having a predetermined volume, and the air supply chamber 12 includes a blower for supplying air, that is, an air supply fan 10.
  • an upper portion of the air supply chamber 12 is provided with an air supply inlet 11, the air supply inlet 11 is connected to an indoor side through a duct, and a side surface is connected to a side surface of a mixing chamber 21 described later.
  • the air (a mixture of the indoor-air and the outdoor-air) supplied from the mixing chamber 21 is supplied to the chamber by driving the air supply fan 10 and flown to the indoor side through the air supply inlet 11 to perform heating and cooling operations.
  • the inner portion of the main body 29c which functions as the air exhaust side is implemented as an air exhaust chamber 15 having the same volume as the air supply chamber 12, and the air exhaust chamber 15 includes an air exhaust fan 13 for exhausting air.
  • the air exhaust chamber 15 is connected to the other side surface of the mixing chamber 21 through the side surfaces of the main bodies 29b and 29c that are attached to each other, and an upper portion of the air exhaust chamber 15 is provided with an air exhaust outlet 14 for exhausting air.
  • the air exhausted from the mixing chamber 21 is flown into the chamber by driving the air exhaust fan 13 and exhausted through the air exhaust outlet 14.
  • the air exhaust outlet 14 is provided with a damper 25f that is opened and closed by an actuator such as a solenoid, and the damper 25f may be driven by the actuator controlled by the control panel (not shown) so as to regulate the flow of air.
  • an actuator such as a solenoid
  • the inner portion of the main body 29b which is engaged between the air supply side main body 29a and the air exhaust side main body 29c that are separated in order to mix the indoor-air with the outdoor-air or inhale the indoor-air or outdoor-air, is constructed with the mixing chamber 21 which are partitioned into several independent spaces, and in the spaces, two heat exchangers for heat transfer operations for heating and cooling, that is, first and second heat exchangers 17 and 18 are provided.
  • an inner portion of the mixing chamber 21 is partitioned into two independent spaces and a space including the machine room 23 by a barrier 16 having a substantially T-shaped arrangement from a top view, and side surfaces of the two independent spaces are connected to the air supply chamber 12 and the air exhaust chamber 15 to serve as spaces for mixing the indoor- air with the outdoor-air or spaces for inhaling the outdoor- air or the indoor- air.
  • first and second heat exchangers 17 and 18 are assigned to the independent spaces constructed as described above so as to be disposed in connection paths connected to the air supply chamber 12 and the air exhaust chamber 15.
  • first and second heat exchangers 17 and 18 are connected to the compressor disposed in the machine room through refrigerant pipes, and plumbing methods for operating the heat exchangers are not limited and may employ any method well known in the art.
  • front portions of the first and second heat exchangers 17 and 18 are provided with filter units 27 to protect heat exchanger coils from external contaminated air to lengthen the life span and supply or exhaust purified clean air.
  • the outdoor-air inlets 19a and 19b and the indoor-air inlet 20a are provided with dampers 25b, 25c, and 25d operated by actuators controlled by the control panel (not shown), respectively, so that flows through the inlets can be controlled.
  • the mixing chamber 21 is completely partitioned into the air inlets 19a, 19b, 20a, and 20b, so that fresh air can always be supplied to the indoor side and by applying the mixing chamber 21, the outdoor-air and the indoor- air can be mixed with each other before the air is flown to the front portion of the heat exchanger coil. Accordingly, a constant temperature can be maintained in any space.
  • the independent space that is, the machine room 23 including the attachments for heating and cooling such as the compressor 22, an expansion value (not shown), and the like is formed.
  • the machine room 23 is maintained at a constant temperature (for example, 22 0 C or more), so that an optimal operation environment for the attachments such as the compressor 22 can be implemented.
  • connection opening 28 is provided with the indoor- air inlet 20b, and the inner portion of the machine room 23 is connected to the air exhaust side space of the mixing chamber 21 through a connection opening 28.
  • the indoor-air inlet 20a of the mixing chamber 21 and the indoor- air inlet 20b of the machine room 23 are connected by a duct 24 extended from the indoor side and provided with dampers 25a and 25b, respectively, so that the indoor-air supplied through the duct 24 by controlling the drafts of the dampers can be divided at a proper ratio.
  • dampers 25a and 25b in this case are allowed to be operated by the actuators controlled by the control panel (not shown) so that the drafts thereof can be controlled.
  • the duct 24 is provided with a guide 26 having a shape of a partition between the inlets 20a and 20b at both sides, and the guide 26 is constructed to be extended from the inlets by a predetermined length. Therefore, the air to be supplied to the inlets along the duct 24 is not leaned toward a direction but supplied to the both inlets in equilibrium.
  • the second heat exchanger further includes a sprinkler unit (not shown) such that in a case where the second heat exchanger is operated as a condenser, condensed water generated by an evaporator that is the first heat exchanger and water supply are compulsively sprayed or sprinkled to a condenser coil.
  • the condensed water generated by an evaporator coil and the water supply are compulsively sprayed or sprinkled to the condenser coil so as to decrease the condensation temperature and pressure and eventually increase cooler efficiency.
  • FIG. 5 is a top plan view illustrating operation states of the heating and cooling air conditioner in heating and cooling modes according to the embodiment of the present invention
  • FIG. 6 is a top plan view illustrating operation states of the heating and cooling air conditioner in an outdoor- air cooling mode according to the embodiment of the present invention.
  • the first heat exchanger 17 that performs heat exchange operations in a cooling or heating mode functions as an evaporator in the cooling mode and a condenser in the heating mode
  • the second heat exchanger 18 functions as a condenser in the cooling mode and the an evaporator in the heating mode.
  • the outdoor-air is supplied to the side space of the mixing chamber 21 through the outdoor-air inlet 19a and simultaneously, the air circulated from the indoor side is supplied thereto through the indoor-air inlet 20a.
  • the outdoor-air is supplied through the outdoor-air inlet 19b.
  • the air circulated from the indoor side is supplied to the machine room 23 through the indoor-air inlet 20b.
  • the dampers 25b and 25a provided to the indoor-air inlets 20a and 20b are opened at a predetermined ventilation ratio, so that some flows of the circulated air are supplied to the machine room, and remaining flows are naturally flown to the side space of the mixing chamber 21 so as to be re- refrigerated.
  • the air may be divided at a ratio of 30%:70% to be supplied to the machine room and the mixing chamber, and accordingly, the outdoor-air to be supplied to the mixing chamber may have a ratio of 30%.
  • the cooled air is supplied to the air supply chamber 12 by driving the air supply fan 10 and supplied to the indoor side through the air supply inlet 11.
  • the air that has been used for the indoor cooling operation is returned to the air conditioner through the duct 24 to be continuously circulated through a cycle to cool the indoor side.
  • the second heat exchanger 18 that functions as the condenser is connected to the first heat exchanger 17 through a refrigerant pipe, the refrigerant evaporated by the first heat exchanger 17 is transferred to the second heat exchanger 18, heat is absorbed by the outdoor-air from the refrigerant, and the refrigerant is returned to the first heat exchanger 17, thereby implementing the circulation.
  • the flow of the air in the space to which the second heat exchanger 18 belongs is controlled by driving the air exhaust fan 13.
  • a general heat pump type heat exchange method is employed to change the flow of the refrigerant and switch the heating and cooling modes to each other.
  • the first heat exchanger 17 that has served as the evaporator in the cooling mode functions as the condenser in the heating mode
  • the second heat exchanger 18 that has served as the condenser functions as the evaporator.
  • the heating and cooling air conditioner according to the present invention has advantages as follows.
  • the heating and cooling air conditioner used as an individual heating and cooling integrated type (separation type) air conditioner has a packaged structure to perform a function of a completely independent cooling and heating unit for realizing outdoor-air cooling including cooling, heating, and ventilating and can be installed anywhere without spatial limitations.
  • the machine room is maintained at the constant temperature (22 0 C), so that during the outdoor-air cooling (35 0 C or more) and heating (-1O 0 C or less), the compressor efficiency is not changed, and continuous heating operations can be performed at a comfortable and stable temperature.
  • an outdoor-air inlet unit and an indoor-air inlet unit including the air supply inlet and the air exhaust outlet are completely separated from each other, and the supplied air and the exhausted air is filtered by the filters, so that the heat exchangers or the like can be protected from the external contaminated air and fresh air can always be supplied to the indoor side.
  • the main body has the three-level proportional structure in the in a packaged structure, so that installation and transportation costs can be reduced.
  • the main bodies can be assembled in a separation type or an integrated type according to a standard or low of a country.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Central Air Conditioning (AREA)

Abstract

Provided is a heating and cooling air conditioner which can realize outdoor-air cooling in addition to indoor cooling, heating, and ventilating. The heating and cooling air conditioner can implement main bodies having separated air supply, air exhaust, and air mixing functions in a packaged structure to supply fresh air to an indoor side, maintain a constant temperature at any part by completely mixing the indoor-air with the outdoor-air before the air is supplied to a front portion of a heat exchanger, be easily installed and transported at any indoor or outdoor position without spatial limitations due to the packaged structure of the main body so as to be easily treated, managed, and repaired, and includes a machine room including a compressor or the like as an additional independent chamber to be supplied with the indoor-air at the constant temperature so as to implement an optimal machine room operating environment, thereby maximizing the compressor efficiency.

Description

Description COLD AND HEAT AIR CONDITIONER
Technical Field
[1] The present invention relates to a heating and cooling air conditioner, and more particularly, to a heating and cooling air conditioner capable of implementing a heating and cooling unit in a packaged structure to realize outdoor-air cooling including cooling, heating, and ventilating, being installed anywhere, that is, indoors or outdoors without spatial limitations, obtaining excellent heating and cooling efficiency, and maintaining a constant temperature of a machine room including a compressor or the like, thereby maximizing the compressor efficiency. Background Art
[2] In general, as a heating and cooling air conditioner, an air flow change type air conditioner for selectively changing flows of the indoor- air and the outdoor- air to be supplied to a condenser and an evaporator, or mixing the indoor-air with the outdoor- air at a proper ratio to be divided and supplied to condenser and the evaporator has been widely used.
[3] Through the air flow change, or by adding a refrigerant flow change method using a
4- way value thereto, an air conditioner having a single condenser and a single evaporator can perform both heating and cooling functions, recover waste heat from the exhausted outdoor-air by using an outdoor unit to increase heating and cooling efficiency, and obtain an indoor-air ventilation effect.
[4] For example, an example of a heating and cooling air conditioner is disclosed in
Korea Patent Registration No. 354132. The disclosed heating and cooling air conditioner includes an indoor unit (an evaporator in a cooling mode and a condenser in a heating mode) and an outdoor unit (a condenser in the cooling mode and an evaporator in the heating mode) in a single main body and a damper system for properly mixing the outdoor- air with the indoor- air.
[5] However, existing heating and cooling air conditioners as described above have structures in which a direction or flow of the indoor-air or outdoor-air into the main body is controlled by a damper, so that an arrangement of a heat exchanger is complex and a large installation space is needed. In addition, in a state that the dampers are disposed to be close to the heat exchanger, each damper is disposed to overlap with only a part of a heat exchange area of the heat exchanger, so that the flow of the air passes through the part of the heat exchange area, and this causes decrease in heat exchange efficiency.
[6] In addition to the heat exchanger such as the condenser and the evaporator, a layout associated with an arrangement of ventilation or exhaust blowers and components is inefficient, so that the entire volume of the apparatus is increased, and a large installation space has to be guaranteed.
[7] Particularly, even in a case where components such as a compressor and an expansion value are disposed outside the main body or included in the main body, the components are exposed to the flow of the outdoor-air, and this causes decrease in efficiency of the compressor.
[8] For example, in a case of other air conditioners for bypassing mixed air, a temperature of a compressor or the like is decreased, and due to the irregularity of the temperature, heat exchange performance is degraded. Disclosure of Invention Technical Problem
[9] The present invention provides a heating and cooling air conditioner capable of implementing a main body having separated air supply, air exhaust, and air mixing functions in a packaged structure to supply fresh air to an indoor side and maintaining a constant temperature at any part by completely mixing the indoor-air with the outdoor-air before the air is supplied to a front portion of a heat exchanger.
[10] The present invention also provides a heating and cooling air conditioner which can be easily installed and transported at any indoor or outdoor position without spatial limitations due to the packaged structure of the main body so as to be easily treated, managed, and repaired.
[11] The present invention also provides a heating and cooling air conditioner which includes a machine room including a compressor or the like as an additional independent chamber to be supplied with the indoor-air at the constant temperature so as to implement an optimal machine room operating environment, thereby maximizing the compressor efficiency. Technical Solution
[12] According to an aspect of the present invention, there is provided a heating and cooling air conditioner including: an air supply chamber which includes an air supply fan, has a side surface through which the air is supplied, and an air supply inlet through which the air is supplied to an indoor side; an air exhaust chamber which includes an air exhaust fan, has a side surface through the air is supplied, and an air exhaust outlet through which the air is exhausted to an outdoor side; a mixing chamber which is disposed between the air supply chamber and the air exhaust chamber to enable air to be flown to the chambers through side surfaces of the mixing chamber, and has an internal space that is partitioned into independent spaces by a barrier to separately include first and second heat exchangers so as to allow the independent space to have an outdoor-air inlet and an indoor-air inlet and the other independent space to have an outdoor-air inlet; and a machine room which includes a compressor connected to the first and second heat exchangers through a refrigerant pipe, has a structure to be integrated to a side of the mixing chamber and simultaneously connected to the air exhaust side space, and has an indoor-air inlet to be supplied with air from the indoor side, thereby maintaining an indoor temperature due to the supplied indoor-air.
[13] In the above aspect of the present invention, the indoor- air inlet of the mixing chamber and the indoor- air inlet of the machine room may be connected to each other by a duct extended from the indoor side to be supplied with different amounts of indoor-air supplied through the duct according to controlled drafts of dampers of the inlets at a proper ratio.
[14] In addition, the duct may include a guide extended from the inlets by a predetermined length to serve as a partition between the indoor-air inlets to prevent drifts of the indoor- air and properly divide the air.
[15] In addition, the air supply chamber, the air exhaust chamber, and the mixing chamber with the machine room may be manufactured as three independent assemblies or constructed in one body.
[16] In addition, each of the first and second heat exchangers may include a filter unit provided to a front portion to be protected from external contaminated air. In addition, the second heat exchanger may further include a sprinkler unit such that in a case where the second heat exchanger is operated as a condenser, condensed water generated by an evaporator that is the first heat exchanger and water supply are compulsively sprayed or sprinkled to a condenser coil.
[17]
Brief Description of the Drawings
[18] FIG. 1 is a perspective view illustrating a heating and cooling air conditioner according to an embodiment of the present invention.
[19] FIG. 2 is a front view illustrating the heating and cooling air conditioner according to the embodiment of the present invention.
[20] FIG. 3 is a top plan view illustrating the heating and cooling air conditioner according to the embodiment of the present invention.
[21] FIG. 4 is a side view illustrating the heating and cooling air conditioner according to the embodiment of the present invention.
[22] FIG. 5 is a top plan view illustrating operation states of the heating and cooling air conditioner in heating and cooling modes according to the embodiment of the present invention.
[23] FIG. 6 is a top plan view illustrating operation states of the heating and cooling air conditioner in an outdoor-air cooling mode.
Best Mode for Carrying Out the Invention
[24] Hereinafter, a heating and cooling air conditioner according to an embodiment of the present invention will be described in detail with reference to the attached drawings.
[25] FIG. 1 is a perspective view illustrating a heating and cooling air conditioner according to an embodiment of the present invention.
[26] Referring to FIG. 1, the heating and cooling air conditioner includes three main bodies 29a, 29b, and 29c that can be integrated and separated and are implemented as chambers having functions of supplying air inwardly, exhausting air outwardly, and mixing the indoor- air with the outdoor- air.
[27] For example, the main bodies 29a and 29c disposed on the left and the right are implemented as an air supply chamber for supplying air inwardly and an air exhaust chamber, respectively, and the main body 29b disposed at the center is implemented as a mixing chamber for mixing the air supplied from an outdoor side with the air flown inwardly or directly inhaling the outdoor-air.
[28] Each of the main bodies 29a, 29b, and 29c is manufactured to be an assembly, and the main bodies 29a, 29b, and 29c can be integrated in a row in one body to be used. The main body 29b disposed at the center has a structure to be connected to the main bodies 29a and 29c through side surfaces contacting the main bodies 29a and 29c when integrated to enable the air to flow in a predetermined direction.
[29] Of course, the main bodies 29a, 29b, and 29c may be connected through a well- known flange connection structure including a sealing structure.
[30] Particularly, the main body 29b disposed at the center is constructed with a machine room 23 including attachments for heating and cooling such as a compressor 22. Here, the machine room 23 is connected to a space through which air is exhausted from the mixing chamber, so that the air flown into the machine room 23 may have a flow to the space for exhausting air from the mixing chamber.
[31] As described above, the heating and cooling air conditioner according to the present invention is constructed so that the air supply side and the air exhaust side are separated from each other. Therefore, fresh air can be supplied. In addition, since the heating and cooling air conditioner has a three-level proportional structure, the heating and cooling air conditioner can be easily installed and transferred. In addition, each main body is constructed to be compact in a packaged structure, and an outdoor unit, a compressor unit, a control panel, a duct, and the like are not exposed to the outside of the heating and cooling air conditioner, so that limitations to an installation space can be reduced and a building space can be effectively used.
[32] FIGS. 2, 3, and 4 are a front view, a top plan view, and a side view illustrating the heating and cooling air conditioner, respectively, according to the embodiment of the present invention.
[33] Referring to FIGS. 2 to 4, the inner portion of the main body 29a that functions as the air supply side is implemented as an air supply chamber 12 having a predetermined volume, and the air supply chamber 12 includes a blower for supplying air, that is, an air supply fan 10.
[34] In addition, an upper portion of the air supply chamber 12 is provided with an air supply inlet 11, the air supply inlet 11 is connected to an indoor side through a duct, and a side surface is connected to a side surface of a mixing chamber 21 described later.
[35] Accordingly, the air (a mixture of the indoor-air and the outdoor-air) supplied from the mixing chamber 21 is supplied to the chamber by driving the air supply fan 10 and flown to the indoor side through the air supply inlet 11 to perform heating and cooling operations.
[36] The inner portion of the main body 29c which functions as the air exhaust side is implemented as an air exhaust chamber 15 having the same volume as the air supply chamber 12, and the air exhaust chamber 15 includes an air exhaust fan 13 for exhausting air.
[37] The air exhaust chamber 15 is connected to the other side surface of the mixing chamber 21 through the side surfaces of the main bodies 29b and 29c that are attached to each other, and an upper portion of the air exhaust chamber 15 is provided with an air exhaust outlet 14 for exhausting air.
[38] Accordingly, the air exhausted from the mixing chamber 21 is flown into the chamber by driving the air exhaust fan 13 and exhausted through the air exhaust outlet 14.
[39] Here, the air exhaust outlet 14 is provided with a damper 25f that is opened and closed by an actuator such as a solenoid, and the damper 25f may be driven by the actuator controlled by the control panel (not shown) so as to regulate the flow of air.
[40] The inner portion of the main body 29b which is engaged between the air supply side main body 29a and the air exhaust side main body 29c that are separated in order to mix the indoor-air with the outdoor-air or inhale the indoor-air or outdoor-air, is constructed with the mixing chamber 21 which are partitioned into several independent spaces, and in the spaces, two heat exchangers for heat transfer operations for heating and cooling, that is, first and second heat exchangers 17 and 18 are provided.
[41] For example, an inner portion of the mixing chamber 21 is partitioned into two independent spaces and a space including the machine room 23 by a barrier 16 having a substantially T-shaped arrangement from a top view, and side surfaces of the two independent spaces are connected to the air supply chamber 12 and the air exhaust chamber 15 to serve as spaces for mixing the indoor- air with the outdoor-air or spaces for inhaling the outdoor- air or the indoor- air.
[42] Here, the first and second heat exchangers 17 and 18 are assigned to the independent spaces constructed as described above so as to be disposed in connection paths connected to the air supply chamber 12 and the air exhaust chamber 15.
[43] Here, the first and second heat exchangers 17 and 18 are connected to the compressor disposed in the machine room through refrigerant pipes, and plumbing methods for operating the heat exchangers are not limited and may employ any method well known in the art.
[44] In addition, front portions of the first and second heat exchangers 17 and 18 are provided with filter units 27 to protect heat exchanger coils from external contaminated air to lengthen the life span and supply or exhaust purified clean air.
[45] In order to inhale the indoor-air or the outdoor-air, the space in the mixing chamber
21 connected to the air supply side is provided with an outdoor- air inlet 19a through which the outdoor-air is supplied and an indoor-air inlet 20a through which the indoor- air is supplied, and the space connected to the air exhaust side is provided with an outdoor- air inlet 19b through which the outdoor- air is supplied.
[46] Accordingly, during the heating or cooling operation, the indoor-air and the outdoor- air supplied through the indoor-air inlet 20a and the outdoor-air inlet 19a to the space are mixed with each other to be supplied to the air supply chamber 12. Otherwise, the outdoor-air is supplied through the outdoor-air inlet 19b to the other space to be supplied to the air exhaust chamber 15.
[47] Here, since the air from the outdoor side is separately inhaled through the outdoor-air inlets 19a and 19b, that is, since the outdoor-air to be supplied to the air supply chamber 12 is not mixed with the air to be supplied to the air exhaust side but inhaled through the outdoor-air inlet 19a, fresh air can be supplied to the indoor side.
[48] Here, the outdoor-air inlets 19a and 19b and the indoor-air inlet 20a are provided with dampers 25b, 25c, and 25d operated by actuators controlled by the control panel (not shown), respectively, so that flows through the inlets can be controlled.
[49] As described above, the mixing chamber 21 is completely partitioned into the air inlets 19a, 19b, 20a, and 20b, so that fresh air can always be supplied to the indoor side and by applying the mixing chamber 21, the outdoor-air and the indoor- air can be mixed with each other before the air is flown to the front portion of the heat exchanger coil. Accordingly, a constant temperature can be maintained in any space.
[50] Particularly, in the main body 29b to which the mixing chamber 21 belongs, the independent space, that is, the machine room 23 including the attachments for heating and cooling such as the compressor 22, an expansion value (not shown), and the like is formed. Besides, the machine room 23 is maintained at a constant temperature (for example, 220C or more), so that an optimal operation environment for the attachments such as the compressor 22 can be implemented.
[51] For this, the upper portion of the machine room 23 included in the mixing chamber
21 is provided with the indoor- air inlet 20b, and the inner portion of the machine room 23 is connected to the air exhaust side space of the mixing chamber 21 through a connection opening 28.
[52] Accordingly, during the operation of collecting the indoor-air managed at a proper temperature, some flows of the air are supplied to an indoor side of the machine room through the indoor-air inlet 20b, so that the indoor side of the machine room can be maintained at a constant temperature of about 220C or more, and the machine room is protected from the outdoor-air having a temperature of 320C or more during the cooling operation. Therefore, the machine room can be maintained in the optimal state.
[53] In order to be supplied with the indoor-air, the indoor-air inlet 20a of the mixing chamber 21 and the indoor- air inlet 20b of the machine room 23 are connected by a duct 24 extended from the indoor side and provided with dampers 25a and 25b, respectively, so that the indoor-air supplied through the duct 24 by controlling the drafts of the dampers can be divided at a proper ratio.
[54] For example, when it is assumed that the total amount of the air supplied through the duct 24 is 100%, 30% of the air is supplied to the indoor-air inlet 20b of the machine room to be used for maintaining the temperature of the machine room, and 70% of the air is supplied to the indoor- air inlet 20a of the mixing chamber to be used to be re- circulated to the indoor side.
[55] The dampers 25a and 25b in this case are allowed to be operated by the actuators controlled by the control panel (not shown) so that the drafts thereof can be controlled.
[56] In addition, the duct 24 is provided with a guide 26 having a shape of a partition between the inlets 20a and 20b at both sides, and the guide 26 is constructed to be extended from the inlets by a predetermined length. Therefore, the air to be supplied to the inlets along the duct 24 is not leaned toward a direction but supplied to the both inlets in equilibrium.
[57] Specifically, due to the guide 26, a path of the air supplied to each of the indoor-air inlets 20a and 20b can be guaranteed, and an enough amount of air due to the draft of the damper can be guaranteed.
[58] In addition, the second heat exchanger further includes a sprinkler unit (not shown) such that in a case where the second heat exchanger is operated as a condenser, condensed water generated by an evaporator that is the first heat exchanger and water supply are compulsively sprayed or sprinkled to a condenser coil.
[59] Specifically, during the cooling operation, when the outdoor-air temperature is above
320C, the condensed water generated by an evaporator coil and the water supply are compulsively sprayed or sprinkled to the condenser coil so as to decrease the condensation temperature and pressure and eventually increase cooler efficiency.
[60] Operation states of the heating and cooling air conditioner having the aforementioned construction according to the embodiment of the present invention are described as follows.
[61] FIG. 5 is a top plan view illustrating operation states of the heating and cooling air conditioner in heating and cooling modes according to the embodiment of the present invention, and FIG. 6 is a top plan view illustrating operation states of the heating and cooling air conditioner in an outdoor- air cooling mode according to the embodiment of the present invention.
[62] Referring to FIG. 5, the first heat exchanger 17 that performs heat exchange operations in a 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 functions as a condenser in the cooling mode and the an evaporator in the heating mode.
[63] In the cooling mode, the outdoor-air is supplied to the side space of the mixing chamber 21 through the outdoor-air inlet 19a and simultaneously, the air circulated from the indoor side is supplied thereto through the indoor-air inlet 20a. To the other side space, the outdoor-air is supplied through the outdoor-air inlet 19b.
[64] Here, the air circulated from the indoor side is supplied to the machine room 23 through the indoor-air inlet 20b. In addition, the dampers 25b and 25a provided to the indoor-air inlets 20a and 20b are opened at a predetermined ventilation ratio, so that some flows of the circulated air are supplied to the machine room, and remaining flows are naturally flown to the side space of the mixing chamber 21 so as to be re- refrigerated.
[65] Here, when it is assumed that a ventilation ratio per a circulation cycle of the circulated air is 100%, the air may be divided at a ratio of 30%:70% to be supplied to the machine room and the mixing chamber, and accordingly, the outdoor-air to be supplied to the mixing chamber may have a ratio of 30%.
[66] The outdoor- air and the indoor-air supplied to the mixing chamber 21 are mixed in the chamber immediately on flowing into the chamber at a high speed to become the mixed air at a uniform temperature, and the mixed air at the constant temperature passes through the heat exchangers, so that heat exchange operations are performed through the entire surface of the heat exchanger coil and the heat exchange efficiency can be increased.
[67] As the mixed air passes through the filter unit 27, pieces of dirt are filtered out, and as the mixed air passes through the first heat exchanger 17 that functions as the evaporator, the mixed air is cooled by the heat exchange operations.
[68] The cooled air is supplied to the air supply chamber 12 by driving the air supply fan 10 and supplied to the indoor side through the air supply inlet 11.
[69] The air that has been used for the indoor cooling operation is returned to the air conditioner through the duct 24 to be continuously circulated through a cycle to cool the indoor side.
[70] Separately from the first heat exchanger 17 that functions as the evaporator, the second heat exchanger 18 that functions as the condenser is connected to the first heat exchanger 17 through a refrigerant pipe, the refrigerant evaporated by the first heat exchanger 17 is transferred to the second heat exchanger 18, heat is absorbed by the outdoor-air from the refrigerant, and the refrigerant is returned to the first heat exchanger 17, thereby implementing the circulation.
[71] Here, the flow of the air in the space to which the second heat exchanger 18 belongs is controlled by driving the air exhaust fan 13.
[72] Specifically, when the air exhaust fan 13 is driven, the outdoor- air is inhaled to the outdoor-air inlet 20b, heat is exchanged by the second heat exchanger 18, and the outdoor- air is exhausted to the outdoor side through the air exhaust fan 13.
[73] According to the aforementioned embodiment, a general heat pump type heat exchange method is employed to change the flow of the refrigerant and switch the heating and cooling modes to each other.
[74] Specifically, by changing the flow of the refrigerant by using a 4- way value (not shown), the first heat exchanger 17 that has served as the evaporator in the cooling mode functions as the condenser in the heating mode, and the second heat exchanger 18 that has served as the condenser functions as the evaporator.
[75] However, an arrow direction of an air flow root in the figure is not changed.
[76] In a case of a general air conditioner, when the temperature of the outdoor-air is O0C or less, an enthalpy of the outdoor-air is low, and the deficient amount of heat is compensated by an electric heater. This is called a weather compensation operation. In addition, at a temperature of -80C or less, the enthalpy is deficient even though the weather compensation operation is performed. Therefore, the heating efficiency is significantly degraded and a life span of the compressor is also decreased.
[77] However, as described above, by improving the efficiency of the compressor, the outdoor-air corresponding to the amount of ventilation is supplied, and the exhausted air is not used, so that the heating performance can be improved with the optimal efficiency and the minimum use of the heater irrespective of the outdoor-air temperature.
[78] In FIG. 6, an operation state in the outdoor-air cooling mode is illustrated.
[79] At the turning of seasons, when the outdoor temperature is lower than a predetermined indoor temperature, in order to perform the cooling operation, 100% of the outdoor-air may be supplied to the indoor side and 100% of the indoor-air may be exhausted to the outdoor side.
[80] In this case, 100% of the circulated indoor-air is supplied through the machine room and exhausted through the mixing chamber and the air exhaust chamber. Industrial Applicability
[81] As described above, the heating and cooling air conditioner according to the present invention has advantages as follows.
[82] First, the heating and cooling air conditioner used as an individual heating and cooling integrated type (separation type) air conditioner has a packaged structure to perform a function of a completely independent cooling and heating unit for realizing outdoor-air cooling including cooling, heating, and ventilating and can be installed anywhere without spatial limitations.
[83] Second, by using the air supplied from the indoor side, a constant temperature (220C) of the machine room to which the compressor belongs can be maintained irrespective of seasons, and accordingly, the maximum efficiency of the compressor can be maintained irrespective of the outdoor-air temperature. Therefore, the compressor efficiency can be maximized.
[84] Third, the machine room is maintained at the constant temperature (220C), so that during the outdoor-air cooling (350C or more) and heating (-1O0C or less), the compressor efficiency is not changed, and continuous heating operations can be performed at a comfortable and stable temperature.
[85] Fourth, structurally, an outdoor-air inlet unit and an indoor-air inlet unit including the air supply inlet and the air exhaust outlet are completely separated from each other, and the supplied air and the exhausted air is filtered by the filters, so that the heat exchangers or the like can be protected from the external contaminated air and fresh air can always be supplied to the indoor side.
[86] Last, the main body has the three-level proportional structure in the in a packaged structure, so that installation and transportation costs can be reduced. In addition, the main bodies can be assembled in a separation type or an integrated type according to a standard or low of a country.

Claims

Claims
[1] A heating and cooling air conditioner comprising: an air supply chamber which includes an air supply fan, has a side surface through which the air is supplied, and an air supply inlet through which the air is supplied to an indoor side; an air exhaust chamber which includes an air exhaust fan, has a side surface through the air is supplied, and an air exhaust outlet through which the air is exhausted to an outdoor side; a mixing chamber which is disposed between the air supply chamber and the air exhaust chamber to enable air to be flown to the chambers through side surfaces of the mixing chamber, and has an internal space that is partitioned into independent spaces by a barrier to separately include first and second heat exchangers and so as to allow the independent space to have an outdoor-air inlet and an indoor-air inlet and the other independent space to have an outdoor-air inlet; and a machine room which includes a compressor connected to the first and second heat exchangers through a refrigerant pipe, has a structure to be integrated to a side of the mixing chamber and simultaneously connected to the air exhaust side space, and has an indoor-air inlet to be supplied with air from the indoor side, thereby maintaining an indoor temperature due to the supplied indoor- air.
[2] The heating and cooling air conditioner of claim 1, wherein the indoor-air inlet of the mixing chamber and the indoor- air inlet of the machine room are connected to each other by a duct extended from the indoor side to be supplied with different amounts of indoor- air supplied through the duct according to controlled drafts of dampers of the inlets at a proper ratio.
[3] The heating and cooling air conditioner of claim 2, wherein the duct comprises a guide extended from the inlets by a predetermined length to serve as a partition between the indoor- air inlets to prevent drifts of the indoor- air and properly divide the air.
[4] The heating and cooling air conditioner of claim 1, wherein the air supply chamber, the air exhaust chamber, and the mixing chamber with the machine room are manufactured as three independent assemblies or constructed in one body.
[5] The heating and cooling air conditioner of claim 1 or 4, wherein each of the first and second heat exchangers includes a filter unit provided to a front portion to be protected from external contaminated air.
PCT/KR2008/003947 2007-07-04 2008-07-03 Cold and heat air conditioner WO2009005321A2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111520819A (en) * 2020-05-12 2020-08-11 珠海格力电器股份有限公司 Fresh air conditioner

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101390969B1 (en) 2013-04-29 2014-05-27 고상수 Indoor temperature reduction device
CN107388471A (en) * 2017-07-17 2017-11-24 芜湖泰领信息科技有限公司 Exchange heat VMC
KR102126903B1 (en) * 2020-04-21 2020-06-25 주식회사 에이알 Outdoor unit integrated precision air conditioner with function to discharge smoke
KR102640480B1 (en) 2022-06-13 2024-02-23 강인호 Air Cooling Container System

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030028959A (en) * 2001-10-04 2003-04-11 이진국 Heat pump type air conditioner using a waste heat of compressor
WO2004046617A2 (en) * 2002-11-19 2004-06-03 Meyong Hyek Yun Air flow switching type air conditioner
KR200375780Y1 (en) * 2004-11-09 2005-03-11 주식회사 코벡엔지니어링 Separated type ventilation withdrawal rate adjustment waste heat withdrawal combined cold and heat air conditioner

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100346945B1 (en) * 1999-12-08 2002-07-31 에너지재테크(주) An air conditioning system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030028959A (en) * 2001-10-04 2003-04-11 이진국 Heat pump type air conditioner using a waste heat of compressor
WO2004046617A2 (en) * 2002-11-19 2004-06-03 Meyong Hyek Yun Air flow switching type air conditioner
KR200375780Y1 (en) * 2004-11-09 2005-03-11 주식회사 코벡엔지니어링 Separated type ventilation withdrawal rate adjustment waste heat withdrawal combined cold and heat air conditioner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111520819A (en) * 2020-05-12 2020-08-11 珠海格力电器股份有限公司 Fresh air conditioner

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