CN111351143A - Integral room air conditioner - Google Patents

Integral room air conditioner Download PDF

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Publication number
CN111351143A
CN111351143A CN202010254082.8A CN202010254082A CN111351143A CN 111351143 A CN111351143 A CN 111351143A CN 202010254082 A CN202010254082 A CN 202010254082A CN 111351143 A CN111351143 A CN 111351143A
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CN
China
Prior art keywords
air conditioner
heat pump
subcooler
pump system
outdoor
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202010254082.8A
Other languages
Chinese (zh)
Inventor
马国远
吴国强
许树学
李富平
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Beijing University of Technology
Original Assignee
Beijing University of Technology
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 Beijing University of Technology filed Critical Beijing University of Technology
Priority to CN202010254082.8A priority Critical patent/CN111351143A/en
Publication of CN111351143A publication Critical patent/CN111351143A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/02Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
    • F24F1/022Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/02Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
    • F24F1/028Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing characterised by air supply means, e.g. fan casings, internal dampers or ducts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/02Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
    • F24F1/032Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing characterised by heat exchangers
    • F24F1/0323Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing characterised by heat exchangers by the mounting or arrangement of the heat exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00Use of energy recovery systems in air conditioning, ventilation or screening
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20Casings or covers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30Arrangement or mounting of heat-exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0046Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00Compression machines, plants or systems, with reversible cycle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20Casings or covers
    • F24F2013/202Mounting a compressor unit therein
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/56Heat recovery units

Abstract

The invention discloses an integral room air conditioner, which consists of a box-shaped shell, a ventilation heat recovery part and a heat pump system, wherein a middle partition plate divides the interior of the shell into two indoor and outdoor spaces which are independent relatively, the ventilation heat recovery part arranged on the side surface of the middle partition plate is communicated with the indoor and outdoor sides, an outdoor heat exchanger and a fan of the heat pump system are arranged in the outdoor space of the box, the indoor heat exchanger and the fan are arranged in the indoor space of the box, and a subcooler which takes summer condensed water, winter defrosting water or cold air as a cooling medium is arranged in the heat pump system.

Description

Integral room air conditioner
Technical Field
The invention mainly relates to the technical field of air conditioning equipment, in particular to an integral room air conditioner.
Background
Currently, under the increasingly strict requirements of environmental protection and energy conservation policies and regulations, air conditioning equipment must further improve the energy efficiency level, and gradually adopt low-temperature room effect potential (GWP) refrigerants such as R290, R32, R1234yf and R1234ze to replace the existing high-GWP refrigerants such as R410A and R22, and the low-GWP refrigerants have flammability or weak flammability. Since the 1990's, split-type air conditioners have become the mainstream form of room air conditioners instead of window air conditioners. However, when the split air conditioner is installed on site, part of refrigerant leaks, and meanwhile, the possibility of refrigerant leakage is high when the split air conditioner is used for a long time, so that the risk of using the low GWP refrigerant is increased sharply, and meanwhile, the installation and maintenance cost is high due to the large field workload and the potential leakage; secondly, the longer connecting line of split type air conditioner not only consumptive material, increase cost, but also increase the flow resistance of refrigerant, reduced the energy efficiency ratio, in addition, split type air conditioner does not have the function of taking a breath, still needs supporting installation air regenerating device during the use, otherwise, the health level of indoor air circumstance can't guarantee. Therefore, from the viewpoints of increasing the safety of use of low GWP refrigerants, improving energy saving and health level, convenience of use, and reducing cost, the air conditioner needs to be integrated, and particularly, a new generation of integrated air conditioners needs to be developed on the basis of the conventional window type air conditioners. Patent 201910953263.7 discloses a multi-loop heat pump type ventilation heat recovery and air treatment combined unit, which is based on a multi-loop heat pump system, and organically integrates the functions of heat pump type ventilation heat recovery, heat pump type air conditioning and the like into the multi-loop heat pump system, so that the advantages of cleanness, high efficiency and compact structure of a heat pump are fully exerted, various different air treatment functions and operation modes can be combined, and an integrated structure can be realized by combining air conditioning and fresh air ventilation in a room, but the compactness and the cost of the structure and the performance of operation under an extreme climate condition have a small difference with the requirement of the room air conditioner; therefore, from the viewpoints of increasing the safety of use of low GWP refrigerants, improving energy saving and health level, convenience of use, and reducing cost, the air conditioner needs to be integrated, and particularly, a new generation of integrated air conditioners needs to be developed on the basis of the conventional window type air conditioners.
Disclosure of Invention
The invention aims to design a new generation of integral room air conditioner which fully utilizes summer condensed water and winter defrosted water or cold air to improve the performance of the air conditioner, has the function of air exchange heat recovery and is particularly suitable for low GWP refrigerant by adopting a two-stage compression heat pump principle on the basis of the traditional window type air conditioner, and can provide a safe and reliable compact air conditioner which accords with the modern concepts of environmental protection, energy conservation, health and the like for users.
In order to achieve the above object, the present invention provides an integral room air conditioner, which is characterized in that: the air conditioner consists of a box-shaped shell (19), a ventilation heat recovery part (22) and a heat pump system; the middle part in the box-shaped shell (19) is provided with a middle clapboard (26) which divides the interior of the shell into two relatively independent spaces: an outdoor space communicated with outdoor air through a C1 air outlet (20) and a fresh air inlet (27), and an indoor space communicated with indoor air through a C2 air outlet (25) and a return air inlet positioned below the C2 air outlet; the ventilation heat recovery component (22) is arranged on the side surface of the middle partition plate (26), outdoor air enters the indoor side through the fresh air inlet (27), the fresh air side flow channel and the fresh air outlet (23) of the heat recovery component (22), and indoor air enters the outdoor side through the exhaust air inlet (24), the exhaust air side flow channel and the exhaust air outlet (21) of the heat recovery component (22); an outdoor heat exchanger (3) and an outdoor fan (18) of the heat pump system are arranged between a C1 air outlet (20) and a fresh air inlet (27), an indoor heat exchanger (13) and an indoor fan (16) are arranged between a C2 air outlet (25) and a return air inlet below the C2 air outlet, and a motor (17) is connected with the indoor fan (16) and the outdoor fan (18).
The heat pump system is a quasi-two-stage compression or two-stage compression heat pump system, and the connection sequence is as follows: a single interface at one side of the four-way reversing valve (2) is connected with an exhaust port of the compressor (1), a middle interface at the other side of the four-way reversing valve (2) is connected with an air suction port of the compressor (1), a left interface at the other side of the four-way reversing valve (2) is connected with the indoor heat exchanger (13), and a right interface at the other side of the four-way reversing valve (2) is connected with the outdoor heat exchanger (3); the other end of the outdoor heat exchanger (3) is connected with a throttling element A (7) through a one-way valve A1(4) and a subcooler A (5), and a one-way valve A2(6) is connected between an inlet of the one-way valve A1(4) and an outlet of the subcooler A (5) in parallel; the other end of the throttling element A (7) is connected with a port at the lower part of the flash tank (8), the other port at the lower part of the flash tank (8) is connected with the throttling element B (9), and the port at the upper part of the flash tank (8) is connected with an air supplementing port of the compressor (1) through an electromagnetic valve (14); the other end of the throttling element B (9) is connected with the other end of the indoor heat exchanger (13) through a one-way valve B1(10) and a subcooler B (12), and a one-way valve B2(11) is connected between an inlet of the one-way valve B1(10) and an outlet of the subcooler B (12) in parallel; the components of the heat pump are connected by a pipeline (15).
The heat pump system of the air conditioner can be a single-stage compression system or a multi-loop single-stage compression composite system.
The subcooler B (12) of the air conditioner heat pump system can be arranged in the outdoor space inside the shell (19), can also be arranged in the indoor space inside the shell (19), and can also be omitted.
The subcooler A (5) and the subcooler B (12) of the air conditioner heat pump system can be two independent devices or can be combined into a whole.
The subcooler A (5) of the air conditioner heat pump system is arranged by being attached to the inner bottom surface of the shell (19) or integrated with the inner bottom surface of the shell (19); the subcooler B (12) can be arranged close to the inner bottom surface of the shell (19) or near the fresh air inlet (27).
The flash tank (8) of the air conditioner heat pump system can be a subcooler or other type of economizer.
The fan driving motor (17) of the air conditioner can be a motor with double output shafts or two independent motors.
The fan driving motor (17) of the air conditioner can be a motor with double output shafts or two independent motors.
The ventilation heat recoverer of the air conditioner can be a metal plate type, heat pipe type and other sensible heat recovery equipment, can also be polymer film type, rotating wheel type total heat recovery equipment, can also be heat pump type, single channel heat accumulation type and other heat recovery equipment, and can also be omitted.
The outdoor heat exchanger of the air conditioner heat pump system is arranged close to the inner side of the outdoor air outlet or arranged on the side surface of the box body near the fresh air inlet.
The intermediate partition (26) of the box-type casing (19) of the air conditioner is a single flat plate or a pair of flat plates which are separated by a certain distance, and the cavity between the pair of flat plates is provided with one or more openings towards the outside.
The throttling element of the air conditioner heat pump system can be a small-hole throttling device or a capillary tube, and also can be an electric expansion valve or a thermal expansion valve.
The heat pump working medium is environment-friendly working medium such as R290, R32, R1234yf, R1234ze and the like, or a mixture of a plurality of working media.
The integrated room air conditioner designed by the invention adopts a quasi-two-stage compression or two-stage compression heat pump system, so that the stability and the energy efficiency level of the integrated room air conditioner running under extreme climatic conditions are effectively improved; the subcooler is properly used in the heat pump system, so that the performance of the air conditioner can be improved by fully utilizing the condensed water in summer and the defrosted water or cold air in winter; the air exchange heat recoverer is integrated, the air exchange amount is guaranteed, the air exchange energy consumption is effectively reduced, meanwhile, the heat recoverer is communicated with the air at the indoor side and the air at the outdoor side, even if the refrigerant leaks, the refrigerant can be rapidly diffused outdoors, and the potential risk of using the flammable refrigerant is greatly reduced. The invention provides a safe and reliable compact air conditioner which accords with modern concepts of environmental protection, energy conservation, health and the like, and is particularly suitable for using a low GWP refrigerant.
Drawings
The invention is further described with reference to the accompanying drawings and the specific embodiments.
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a third embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a fourth embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a fifth embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a sixth embodiment of the present invention.
The reference numbers in the figures illustrate:
1-compressor, 2-four-way reversing valve, 3-outdoor heat exchanger, 4-check valve A1, 5-subcooler A, 6-check valve A2, 7-throttling element A, 8-liquid receiver, 9-throttling element B, 10-check valve B1, 11-check valve B2, 12-subcooler B, 13-indoor heat exchanger, 14-solenoid valve, 15-pipeline, 16-indoor fan, 17-motor, 18-outdoor fan, 19-shell, 20-C1 air outlet, 21-exhaust air outlet, 22-ventilation heat recovery part, 23-fresh air outlet, 24-exhaust air inlet, 25-C2 air outlet, 26-middle partition, 27-fresh air inlet and 28-three-way valve.
Detailed Description
Example one
Referring to fig. 1, this embodiment is a unitary room air conditioner suitable for use with R290 or like flammable refrigerants. The air-conditioning heat pump system is composed of a box-type shell (19), an air exchange heat recovery part (22) and a heat pump system, wherein a middle partition plate (26) is arranged in the middle of the interior of the box-type shell (19) to separate the interior of the shell into two relatively independent spaces: an outdoor space communicated with outdoor air through a C1 air outlet (20) and a fresh air inlet (27), and an indoor space communicated with indoor air through a C2 air outlet (25) and a return air inlet positioned below the C2 air outlet; the compact plate type air exchange heat recoverer (22) is arranged on the side surface of the middle partition plate (26), outdoor air enters the indoor side through a fresh air inlet (27), a fresh air side flow channel and a fresh air outlet (23) of the heat recoverer (22), and indoor air enters the outdoor side through an exhaust air inlet (24), an exhaust air side flow channel and an exhaust air outlet (21) of the heat recoverer (22); an outdoor heat exchanger (3) and an outdoor fan (18) of the heat pump system are arranged between a C1 air outlet (20) and a fresh air inlet (27), an indoor heat exchanger (13) and an indoor fan (16) are arranged between a C2 air outlet (25) and a return air inlet below the C2 air outlet, and a motor (17) is connected with the indoor fan (16) and the outdoor fan (18).
The heat pump system is a quasi-two-stage compression or two-stage compression heat pump system, and the connection sequence is as follows: a single interface at one side of the four-way reversing valve (2) is connected with an exhaust port of the compressor (1), a middle interface at the other side of the four-way reversing valve (2) is connected with an air suction port of the compressor (1), a left interface at the other side of the four-way reversing valve (2) is connected with the indoor heat exchanger (13), and a right interface at the other side of the four-way reversing valve (2) is connected with the outdoor heat exchanger (3); the other end of the outdoor heat exchanger (3) is connected with a throttling element A (7) through a one-way valve A1(4) and a subcooler A (5), and a one-way valve A2(6) is connected between an inlet of the one-way valve A1(4) and an outlet of the subcooler A (5) in parallel; the other end of the throttling element A (7) is connected with a port at the lower part of the bidirectional flash tank (8), the other port at the lower part of the flash tank (8) is connected with the throttling element B (9), and the port at the upper part of the flash tank (8) is connected with an air supplementing port of the compressor (1) through an electromagnetic valve (14); the other end of the throttling element B (9) is connected with the other end of the indoor heat exchanger (13) through a one-way valve B1(10) and a subcooler B (12), and a one-way valve B2(11) is connected between an inlet of the one-way valve B1(10) and an outlet of the subcooler B (12) in parallel; the components of the heat pump are connected by a pipeline (15). The subcooler A (5) and the subcooler B (12) are arranged close to the inner bottom surface of the shell (19) or integrated with the inner bottom surface of the shell (19).
When the air conditioner operates in a refrigeration mode, exhaust gas of the compressor (1) flows through the outdoor heat exchanger (3) through the four-way reversing valve (2), heat is released to outdoor air and then condensed into working medium liquid, the liquid is further supercooled when passing through the one-way valve A1(4) and the supercooler A (5), and cooling fluid of the supercooler A (5) is condensed water flowing from the indoor heat exchanger (13); subcooled liquid enters a bidirectional flash tank (8) after being throttled and depressurized by a throttling element A (7), upper working medium gas flows into a gas supplementing port of a compressor (1) through a gas supplementing pipeline with an electromagnetic valve (14) in the flash tank (8), lower working medium liquid flows through a throttling element B (9) through another interface, the working medium after being throttled and depressurized again enters an indoor heat exchanger (13) through a one-way valve B2(11), and the working medium gas is changed into the working medium gas after absorbing the heat of indoor air and then is sucked by the compressor through a four-way reversing valve (2). Condensed water condensed after the air passes through the indoor heat exchanger (13) for temperature reduction is led to the subcooler A (5).
When the air conditioner operates in a heating mode, exhaust gas of the compressor (1) flows through the indoor heat exchanger (13) through the four-way reversing valve (2), heat is released to indoor air and then condensed into working medium liquid, the liquid is further supercooled when passing through the supercooler B (12) and the one-way valve B1(10), cooling fluid of the supercooler B (12) is defrosting water flowing from the outdoor heat exchanger (3), and the defrosting water can humidify the indoor air after being vaporized; subcooled liquid enters a bidirectional flash tank (8) after being throttled and reduced in pressure by a throttling element B (9), upper working medium gas flows into a gas supplementing port of a compressor (1) through a gas supplementing pipeline with an electromagnetic valve (14) in the flash tank (8), lower working medium liquid flows through a throttling element A (7) through another interface, the working medium after being throttled and reduced in pressure again enters an outdoor heat exchanger (3) through a one-way valve A2(6), the working medium gas is changed into the working medium gas after absorbing heat of outdoor air, and then the working medium gas is sucked by the compressor through a four-way reversing valve (2). The air flows through the outdoor heat exchanger (3), the cooled rear part of the air is condensed and frosted on the outer surface of the outdoor heat exchanger (3), when a frost layer reaches a certain thickness, the heat pump starts to defrost and operates according to a refrigeration mode, and low-temperature water after double layers are melted is led to the subcooler B (12).
Example two
Referring to fig. 2, the embodiment is an integral room air conditioner for heating in winter without a humidifying function. Compared with the first embodiment, the one-way valve B1(10), the one-way valve B2(11) and the subcooler B (12) are only moved from the indoor space to the outdoor space of the box body (19), and the pipeline connection among the two is not changed. In winter heating, the cooling fluid of the subcooler B (12) is defrosting water or/and outdoor air. The rest is the same as the first embodiment.
EXAMPLE III
Referring to fig. 3, the embodiment is an integrated room air conditioner for winter heating without a supercooling function of a working fluid. Compared with the first embodiment, the check valve B1(10), the subcooler B (12) and the pipelines thereof, and the check valve B2(11) are all omitted. When heating in winter, working medium liquid from the indoor heat exchanger (13) is subcooled without special devices and directly enters the throttling element B (9). The cooling fluid of the subcooler B (12) is defrosting water or/and outdoor air. The rest is the same as the first embodiment.
Example four
Referring to fig. 4, the embodiment is a single-stage compression integral type room air conditioner without a humidifying function for winter heating. Compared with the two embodiments, the flash evaporator (8) and the air supplement pipeline with the electromagnetic valve (14) of the compressor air supplement port on the upper part of the flash evaporator are omitted, and the compressor is a heat pump compressor without the air supplement port; and the throttling element B (9) is moved to a pipeline where the check valve B1(10) and the subcooler B (12) are located, after the pipeline is connected with the pipeline where the check valve B2(11) is located in parallel, one end of the pipeline is connected with the throttling element A (7), and the other end of the pipeline is connected with the indoor heat exchanger (13). The rest is the same as the embodiment.
EXAMPLE five
Referring to fig. 5, this embodiment is an integrated room air conditioner in which a subcooler a (5) and a subcooler B (12) are integrated. Compared with the first embodiment, a three-way valve (28) is added on a pipeline behind the subcooler A (5), one outlet of the three-way valve (28) is connected to a pipeline between a throttling element A (7) and a one-way valve A2(6), and the other outlet is connected to a pipeline between a throttling element B (9) and a one-way valve B2 (11); the other end of the check valve B2(11) is connected to a pipeline between the subcooler A (5) and the check valve A1(4) through a check valve B1 (10). Therefore, working medium liquid from the outdoor heat exchanger (3) in a refrigerating mode and working medium liquid from the indoor heat exchanger (13) in a heating mode are both subcooled by the cooler A (5). The rest is the same as the first embodiment.
EXAMPLE six
Referring to fig. 6, this embodiment is an integral room air conditioner with the outdoor heat exchanger (3) side. Compared with the first embodiment, the outdoor heat exchanger (3) is divided into two pieces which are respectively arranged on two side surfaces of the box body (19) and are positioned near the fresh air inlet (27), the right interface on the other side of the four-way reversing valve (2) is connected with one end of the two pieces of outdoor heat exchangers through a pipeline, and the other ends of the two pieces of outdoor heat exchangers are connected with the throttling element A (7) through the check valve A1(4) and the subcooler A (5) after being converged. Thus, the outdoor air is sucked through the outdoor heat exchanger (3), and the heat exchange effect on the air side of the heat exchanger can be improved. The rest is the same as the first embodiment.

Claims (10)

1. An integral room air conditioner characterized by: the air conditioner consists of a box-shaped shell (19), a ventilation heat recovery part (22) and a heat pump system; a middle partition plate (26) is arranged in the middle of the interior of the box-type shell (19), the interior of the box-type shell (19) is divided into two relatively independent spaces, and the two spaces are provided with a C1 air outlet (20), an exhaust air outlet (21), a fresh air outlet (23), an exhaust air inlet (24), a C2 air outlet (25) and a fresh air inlet (27); the ventilation heat recovery component (22) is arranged on the side surface of the middle partition plate (26); an outdoor heat exchanger (3) and an outdoor fan (18) of the heat pump system are arranged between a C1 air outlet (20) and a fresh air inlet (27), an indoor heat exchanger (13) and an indoor fan (16) are arranged between a C2 air outlet (25) and a return air inlet below the C2 air outlet, and a motor (17) is connected with the indoor fan (16) and the outdoor fan (18); the heat pump system is a quasi-second-stage compression or second-stage compression heat pump system;
in the heat pump system, a single interface at one side of a four-way reversing valve (2) is connected with an exhaust port of a compressor (1), a middle interface at the other side of the four-way reversing valve (2) is connected with an air suction port of the compressor (1), a left interface at the other side of the four-way reversing valve (2) is connected with an indoor heat exchanger (13), and a right interface at the other side of the four-way reversing valve (2) is connected with an outdoor heat exchanger (3); the other end of the outdoor heat exchanger (3) is connected with a throttling element A (7) through a one-way valve A1(4) and a subcooler A (5), and a one-way valve A2(6) is connected between an inlet of the one-way valve A1(4) and an outlet of the subcooler A (5) in parallel; the other end of the throttling element A (7) is connected with a port at the lower part of the flash tank (8), the other port at the lower part of the flash tank (8) is connected with the throttling element B (9), and the port at the upper part of the flash tank (8) is connected with an air supplementing port of the compressor (1) through an electromagnetic valve (14); the other end of the throttling element B (9) is connected with the other end of the indoor heat exchanger (13) through a one-way valve B1(10) and a subcooler B (12), and a one-way valve B2(11) is connected between an inlet of the one-way valve B1(10) and an outlet of the subcooler B (12) in parallel; the components of the heat pump are connected by a pipeline (15).
2. A unitary room air conditioner as defined in claim 1 wherein: the heat pump system is a single-stage compression system or a multi-loop single-stage compression composite system.
3. A unitary room air conditioner as defined in claim 1 wherein: the subcooler B (12) of the air conditioner heat pump system is arranged in the outdoor space inside the shell (19), or in the indoor space inside the shell (19), or is directly omitted.
4. A unitary room air conditioner as defined in claim 1 wherein: the subcooler A (5) and subcooler B (12) of the heat pump system are two separate pieces, or are of an integral construction.
5. A unitary room air conditioner as defined in claim 1 wherein: the subcooler A (5) of the heat pump system is installed along the inner bottom surface of the shell (19) or is combined with the inner bottom surface of the shell (19) into a whole; the subcooler B (12) is arranged close to the inner bottom surface of the shell (19) or near the fresh air inlet (27).
6. A unitary room air conditioner as defined in claim 1 wherein: the flash evaporator (8) of the heat pump system is a subcooler.
7. A unitary room air conditioner as defined in claim 1 wherein: the motor of the fan driving motor (17) is a motor with double output shafts or two independent motors.
8. A unitary room air conditioner as defined in claim 1 wherein: the air exchange heat recoverer is a metal plate type or heat pipe type sensible heat recovery device, or a high polymer film type or rotary wheel type total heat recovery device, or a heat pump type or single-channel heat accumulating type heat recovery device, and can also be omitted.
9. A unitary room air conditioner as defined in claim 1 wherein: the outdoor heat exchanger of the heat pump system is arranged close to the inner side of the outdoor air outlet or arranged on the side surface of the box body near the fresh air inlet.
10. A unitary room air conditioner as defined in claim 1 wherein: the intermediate partition (26) of the box-shaped casing (19) is a single plate or a pair of plates spaced apart from each other, the cavity between the plates being open to the outside.
CN202010254082.8A 2020-04-02 2020-04-02 Integral room air conditioner Pending CN111351143A (en)

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Application Number Priority Date Filing Date Title
CN202010254082.8A CN111351143A (en) 2020-04-02 2020-04-02 Integral room air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010254082.8A CN111351143A (en) 2020-04-02 2020-04-02 Integral room air conditioner

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CN111351143A true CN111351143A (en) 2020-06-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010254082.8A Pending CN111351143A (en) 2020-04-02 2020-04-02 Integral room air conditioner

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Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113587706A (en) * 2021-08-01 2021-11-02 北京工业大学 Folding heat exchanger and integral fresh air conditioner thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113587706A (en) * 2021-08-01 2021-11-02 北京工业大学 Folding heat exchanger and integral fresh air conditioner thereof

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