US20130061616A1 - Multi-Connected Air Conditioner Unit and Method of Operating the Same - Google Patents

Multi-Connected Air Conditioner Unit and Method of Operating the Same Download PDF

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Publication number
US20130061616A1
US20130061616A1 US13/265,851 US201013265851A US2013061616A1 US 20130061616 A1 US20130061616 A1 US 20130061616A1 US 201013265851 A US201013265851 A US 201013265851A US 2013061616 A1 US2013061616 A1 US 2013061616A1
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United States
Prior art keywords
heat exchanger
compressor
side heat
water
air conditioner
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.)
Abandoned
Application number
US13/265,851
Inventor
Ping Zhang
Shi Gang Li
Qian Ju Cheng
Min Cui
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DONGGUAN EUROKLIMAT AIR-CONDITIONING & REFRIGERATION Co Ltd
Original Assignee
DONGGUAN EUROKLIMAT AIR-CONDITIONING & REFRIGERATION Co Ltd
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Filing date
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Application filed by DONGGUAN EUROKLIMAT AIR-CONDITIONING & REFRIGERATION Co Ltd filed Critical DONGGUAN EUROKLIMAT AIR-CONDITIONING & REFRIGERATION Co Ltd
Assigned to DONGGUAN EUROKLIMAT AIR-CONDITIONING & REFRIGERATION CO., LTD. reassignment DONGGUAN EUROKLIMAT AIR-CONDITIONING & REFRIGERATION CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHENG, QIAN JU, CUI, Min, LI, SHI GANG, ZHANG, PING
Publication of US20130061616A1 publication Critical patent/US20130061616A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H4/00—Fluid heaters characterised by the use of heat pumps
    • F24H4/02—Water heaters
    • 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
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • 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
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/46—Component arrangements in separate outdoor units
    • F24F1/48—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow
    • F24F1/50—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow with outlet air in upward direction
    • 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
    • F24F3/06—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 characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B31/00—Compressor arrangements
    • F25B31/002—Lubrication
    • F25B31/004—Lubrication oil recirculating arrangements

Definitions

  • the present invention relates to a multi-connected air conditioner unit, and in particular to a multi-connected air conditioner unit and method of operating the same.
  • a multi-connected air conditioner unit includes: a chassis, and a fixed speed compressor, a digital compressor, a first oil separator, a four-way valve, a water-side heat exchanger, an air-side heat exchanger, a super-cooling circuit, a second oil separator, a control box, a refrigeration system component, and connection pipe lines disposed thereon.
  • the existing multi-connected air conditioner unit has quite a lot of problems and shortcomings concerning its functions, applications, and performance, so it can no longer fulfill the requirements of the users. Therefore, there is an urgent need for a multi-connected air conditioner unit, that is able to meet the various demands of users.
  • the present invention provides a multi-connected air conditioner unit, so as to overcome the problems and shortcomings of the prior art.
  • a major objective of the present invention is to provide a multi-connected air conditioner unit and method of operating the same, the air conditioner unit includes: a chassis, and a fixed speed compressor, a digital compressor, a first oil separator, a four-way valve, a water-side heat exchanger, an air-side heat exchanger, a super-cooling circuit, a second oil separator, a control box, a dispenser, an oil inlet pipe, an air suction pipe, a refrigeration system component, and connection pipe lines disposed thereon, wherein, a set of heat recovery devices are additionally provided in a cavity of the water-side heat exchanger.
  • Said method comprising the following steps: when the air-side heat exchanger is put into operation, and the water-side heat exchanger is not put into operation, the four-way valve is used to control the refrigerant to pass through the air-side heat exchanger, in realizing the refrigerating or heating operation of the unit; when the air-side heat exchanger is not put into operation, and the water-side heat exchanger is put into operation, the four-way valve is used to control the refrigerant to pass through the water-side heat exchanger to heat water, in achieving full recovery of heat; when both the compressors are put into operations concurrently, the dispenser is used to transport the refrigerant oil separated by the second oil separator to the oil inlet pipe, then it is input to the compressor via the air suction pipe; and when a portion of compressor is put into operation, and another portion of compressor is not put into operation, since the air suction pipe is installed upright, the refrigerant oil getting into the compressor not in operation will return to the dispenser under the action of gravitational force, then it will
  • an outer shell is provided for the control box, and a partition plate is disposed inside the outer shell, such that they form an upper receiving space and a lower receiving space.
  • the rim of chassis through hole is provided with a fastening portion to fasten a suspension rope.
  • the compressors are wrapped around with muffling devices.
  • the bottom plate and side plate of the control box are provided with holes for electric wires to pass through.
  • the heat recovery device is provided with water inlet holes and water outlet holes.
  • the multi-connected air conditioner unit is made of components capable of realizing multiple functions, thus it achieves great improvements over the prior art in functions, applications, and performance, as such fulfilling the requirements of user.
  • FIG. 1 is a perspective view of a multi-connected air conditioner unit according to the present invention.
  • FIG. 2 is a circuit diagram of a multi-connected air conditioner unit according to the present invention.
  • the present invention provides a multi-connected air conditioner unit and method of operating the same.
  • FIGS. 1 and 2 for a perspective view of a multi-connected air conditioner unit according to the present invention, and a circuit diagram of a multi-connected air conditioner unit according to the present invention respectively. As shown in FIG.
  • the multi-connected air conditioner unit comprising: a chassis 1 , and a fixed speed compressor 2 , a digital compressor 3 , a first oil separator 4 , a four-way valve 5 , a water-side heat exchanger 6 , an air-side heat exchanger 7 , a super-cooling circuit 8 , a second oil separator 9 , a control box 10 , a dispenser 14 , an oil inlet pipe 15 , an air suction pipe 16 , a refrigeration system components, and connection pipe lines disposed thereon.
  • control box 10 includes an outer shell 11 , and a partition plate (not shown) inside the outer shell 11 , such that they form an upper receiving space and a lower receiving space, so the electronic components that are not used frequently are put in the lower receiving space, and the electronic components that are used frequently are put in the upper receiving space to save space and provide convenience in usage.
  • a fastening portion 12 for fastening suspension rope is provided around the rim of the through hole of chassis 1 , so that when the suspension rope passes the through hole in suspension, the fastening portion 12 will fasten the suspension rope, to prevent it from slipping to achieve stable suspension.
  • Muffling devices are wrapped around the compressors, that are made of following materials in preference sequence of sponge, lead plate, sponge and recycled plastic, such that the frequency range of noise absorption is sufficiently wide, ranging from high frequency to low frequency, to achieve effective noise reduction.
  • In the cavity of the water-side heat exchanger 6 is provided with a set of heat recovery devices, that are disposed with water inlet holes and water outlet holes, to heat water and provide water of high temperature for daily usage, so as to save energy consumption.
  • the bottom plate and side plate of the control box 10 is provided with holes 13 for the electric wires to pass through properly, in saving the electric wires utilized and facilitating installation.
  • the present invention also provides a method of operating the multi-connected air conditioner unit, comprising the following steps: when the air-side heat exchanger 7 is put into operation, and the water-side heat exchanger 6 is not put into operation, the four-way valve 5 is used to control the refrigerant to pass through the air-side heat exchanger 7 , in realizing the refrigerating or heating operation of the unit; when the air-side heat exchanger 7 is not put into operation, and the water-side heat exchanger 6 is put into operation, the four-way valve 5 is used to control the refrigerant to pass through the water-side heat exchanger 6 to heat the water, in achieving full recovery of heat and providing water of high temperature for daily usage, thus saving energy; when both the compressors are put into operations concurrently, the dispenser 14 is used to transport the refrigerant oil separated by the second oil separator 9 to an oil inlet pipe 15 , then it is input to the compressor via the air suction pipe 16 ; and when a portion of compressor is put into operation, and another portion of compressor is not
  • the multi-connected air conditioner unit is made of components capable of realizing multiple functions, thus it achieves great improvements over the prior art in functions, applications, and performance, as such fulfilling the requirements of user.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

A multi-connected air conditioner unit and method of operating the same, wherein, when an air-side heat exchanger is put into operation, and a water-side heat exchanger is not put into operation, a four-way valve is used to control a refrigerant to pass through said air-side heat exchanger, in realizing the refrigerating or heating operation of said unit; when said air-side heat exchanger is not put into operation, and said water-side heat exchanger is put into operation, said four-way valve is used to control said refrigerant to pass through said water-side heat exchanger to heat water, in achieving full recovery of heat; when both said compressors are put into operations concurrently, a dispenser is used to transport refrigerant oil separated by a second oil separator to an oil inlet pipe, then it is input to said compressor via an air suction pipe; and when a portion of compressor is put into operation, and another portion of compressor is not put into operation, since said air suction pipe is installed upright, said refrigerant oil getting into said compressor not in operation will return to said dispenser under action of gravitational force, then it will move into said compressor in operation, hereby ensuring safety of compressor operations.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The present invention relates to a multi-connected air conditioner unit, and in particular to a multi-connected air conditioner unit and method of operating the same.
  • 2. Background of the Invention
  • In general, a multi-connected air conditioner unit includes: a chassis, and a fixed speed compressor, a digital compressor, a first oil separator, a four-way valve, a water-side heat exchanger, an air-side heat exchanger, a super-cooling circuit, a second oil separator, a control box, a refrigeration system component, and connection pipe lines disposed thereon. However, the existing multi-connected air conditioner unit has quite a lot of problems and shortcomings concerning its functions, applications, and performance, so it can no longer fulfill the requirements of the users. Therefore, there is an urgent need for a multi-connected air conditioner unit, that is able to meet the various demands of users.
    • SUMMARY OF THE INVENTION
  • In view of the problems and shortcomings of the prior art, the present invention provides a multi-connected air conditioner unit, so as to overcome the problems and shortcomings of the prior art.
  • A major objective of the present invention is to provide a multi-connected air conditioner unit and method of operating the same, the air conditioner unit includes: a chassis, and a fixed speed compressor, a digital compressor, a first oil separator, a four-way valve, a water-side heat exchanger, an air-side heat exchanger, a super-cooling circuit, a second oil separator, a control box, a dispenser, an oil inlet pipe, an air suction pipe, a refrigeration system component, and connection pipe lines disposed thereon, wherein, a set of heat recovery devices are additionally provided in a cavity of the water-side heat exchanger. Said method comprising the following steps: when the air-side heat exchanger is put into operation, and the water-side heat exchanger is not put into operation, the four-way valve is used to control the refrigerant to pass through the air-side heat exchanger, in realizing the refrigerating or heating operation of the unit; when the air-side heat exchanger is not put into operation, and the water-side heat exchanger is put into operation, the four-way valve is used to control the refrigerant to pass through the water-side heat exchanger to heat water, in achieving full recovery of heat; when both the compressors are put into operations concurrently, the dispenser is used to transport the refrigerant oil separated by the second oil separator to the oil inlet pipe, then it is input to the compressor via the air suction pipe; and when a portion of compressor is put into operation, and another portion of compressor is not put into operation, since the air suction pipe is installed upright, the refrigerant oil getting into the compressor not in operation will return to the dispenser under the action of gravitational force, then it will move into the compressor in operation, hereby ensuring the safety of compressor operations.
  • Preferably, an outer shell is provided for the control box, and a partition plate is disposed inside the outer shell, such that they form an upper receiving space and a lower receiving space. Preferably, the rim of chassis through hole is provided with a fastening portion to fasten a suspension rope. Preferably, the compressors are wrapped around with muffling devices. Preferably, the bottom plate and side plate of the control box are provided with holes for electric wires to pass through. Preferably, the heat recovery device is provided with water inlet holes and water outlet holes.
  • In the present invention, the multi-connected air conditioner unit is made of components capable of realizing multiple functions, thus it achieves great improvements over the prior art in functions, applications, and performance, as such fulfilling the requirements of user.
  • Further scope of the applicability of the present invention will become apparent from the detailed description given hereinafter. However, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the present invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the present invention will become apparent to those skilled in the art from this detailed description.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • The related drawings in connection with the detailed description of the present invention to be made later are described briefly as follows, in which:
  • FIG. 1 is a perspective view of a multi-connected air conditioner unit according to the present invention; and
  • FIG. 2 is a circuit diagram of a multi-connected air conditioner unit according to the present invention.
    •  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • The purpose, construction, features, functions and advantages of the present invention can be appreciated and understood more thoroughly through the following detailed description with reference to the attached drawings.
  • In view of the problems and shortcomings of the prior art, the present invention provides a multi-connected air conditioner unit and method of operating the same. Refer to FIGS. 1 and 2 for a perspective view of a multi-connected air conditioner unit according to the present invention, and a circuit diagram of a multi-connected air conditioner unit according to the present invention respectively. As shown in FIG. 1, the multi-connected air conditioner unit comprising: a chassis 1, and a fixed speed compressor 2, a digital compressor 3, a first oil separator 4, a four-way valve 5, a water-side heat exchanger 6, an air-side heat exchanger 7, a super-cooling circuit 8, a second oil separator 9, a control box 10, a dispenser 14, an oil inlet pipe 15, an air suction pipe 16, a refrigeration system components, and connection pipe lines disposed thereon. Wherein, the control box 10 includes an outer shell 11, and a partition plate (not shown) inside the outer shell 11, such that they form an upper receiving space and a lower receiving space, so the electronic components that are not used frequently are put in the lower receiving space, and the electronic components that are used frequently are put in the upper receiving space to save space and provide convenience in usage. A fastening portion 12 for fastening suspension rope is provided around the rim of the through hole of chassis 1, so that when the suspension rope passes the through hole in suspension, the fastening portion 12 will fasten the suspension rope, to prevent it from slipping to achieve stable suspension. Muffling devices are wrapped around the compressors, that are made of following materials in preference sequence of sponge, lead plate, sponge and recycled plastic, such that the frequency range of noise absorption is sufficiently wide, ranging from high frequency to low frequency, to achieve effective noise reduction. In the cavity of the water-side heat exchanger 6 is provided with a set of heat recovery devices, that are disposed with water inlet holes and water outlet holes, to heat water and provide water of high temperature for daily usage, so as to save energy consumption. The bottom plate and side plate of the control box 10 is provided with holes 13 for the electric wires to pass through properly, in saving the electric wires utilized and facilitating installation.
  • The present invention also provides a method of operating the multi-connected air conditioner unit, comprising the following steps: when the air-side heat exchanger 7 is put into operation, and the water-side heat exchanger 6 is not put into operation, the four-way valve 5 is used to control the refrigerant to pass through the air-side heat exchanger 7, in realizing the refrigerating or heating operation of the unit; when the air-side heat exchanger 7 is not put into operation, and the water-side heat exchanger 6 is put into operation, the four-way valve 5 is used to control the refrigerant to pass through the water-side heat exchanger 6 to heat the water, in achieving full recovery of heat and providing water of high temperature for daily usage, thus saving energy; when both the compressors are put into operations concurrently, the dispenser 14 is used to transport the refrigerant oil separated by the second oil separator 9 to an oil inlet pipe 15, then it is input to the compressor via the air suction pipe 16; and when a portion of compressor is put into operation, and another portion of compressor is not put into operation, since the air suction pipe 16 is installed upright, the refrigerant oil getting into the compressor not in operation will return to the dispenser 17 under the action of gravitational force, then it will move into the compressor in operation, hereby ensuring the safety of compressor operations.
  • In the present invention, the multi-connected air conditioner unit is made of components capable of realizing multiple functions, thus it achieves great improvements over the prior art in functions, applications, and performance, as such fulfilling the requirements of user.
  • The above detailed description of the preferred embodiment is intended to describe more clearly the characteristics and spirit of the present invention. However, the preferred embodiments disclosed above are not intended to be any restrictions to the scope of the present invention. Conversely, its purpose is to include the various changes and equivalent arrangements which are within the scope of the appended claims.

Claims (6)

1. A multi-connected air conditioner unit and method of operating the same, said air conditioner unit includes: a chassis, and a fixed speed compressor, a digital compressor, a first oil separator, a four-way valve, a water-side heat exchanger, an air-side heat exchanger, a super-cooling circuit, a second oil separator, a control box, a dispenser, an oil inlet pipe, an air suction pipe, a refrigeration system component, and connection pipe lines disposed thereon, wherein, a set of heat recovery devices are additionally provided in a cavity of said water-side heat exchanger, and it is characterized in that,
said method comprising following steps: when said air-side heat exchanger is put into operation, and said water-side heat exchanger is not put into operation, said four-way valve is used to control refrigerant to pass through said air-side heat exchanger, in realizing the refrigerating or heating operation of said unit; when said air-side heat exchanger is not put into operation, and said water-side heat exchanger is put into operation, said four-way valve is used to control said refrigerant to pass through said water-side heat exchanger to heat water, in achieving full recovery of heat; when both said compressors are put into operations concurrently, said dispenser is used to transport refrigerant oil separated by said second oil separator to an oil inlet pipe, then it is input to said compressor via said air suction pipe; and when a portion of compressor is put into operation, and another portion of compressor is not put into operation, since said air suction pipe is installed upright, said refrigerant oil getting into said compressor not in operation will return to said dispenser under action of gravitational force, then it will move into said compressor in operation, hereby ensuring safety of compressor operations.
2. The multi-connected air conditioner unit and method of operating the same as claimed in claim 1, and it is characterized in that:
said control box includes an outer shell, and a partition plate inside said outer shell, to form a lower portion receiving space and an upper portion receiving space.
3. The multi-connected air conditioner unit and method of operating the same as claimed in claim 1, and it is characterized in that:
rim of a through hole of said chassis is provided with a fastening portion to fasten a suspension rope.
4. The multi-connected air conditioner unit and method of operating the same as claimed in claim 1, and it is characterized in that:
said compressors are wrapped around with muffling devices.
5. The multi-connected air conditioner unit and method of operating the same as claimed in claim 1, and it is characterized in that:
a bottom plate and side plates of said control box are provided with holes for electric wires to pass through.
6. The multi-connected air conditioner unit and method of operating the same as claimed in claim 1, and it is characterized in that:
said heat recovery device is provided with water inlet holes and water outlet holes.
US13/265,851 2010-05-26 2010-08-17 Multi-Connected Air Conditioner Unit and Method of Operating the Same Abandoned US20130061616A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201010188893A CN101858621A (en) 2010-05-26 2010-05-26 Multi-connection air conditioning unit and working method thereof
CN201010188893.9 2010-05-26
PCT/CN2010/001246 WO2011147059A1 (en) 2010-05-26 2010-08-17 Multi-connected air conditioning unit and working method thereof

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US20130098087A1 (en) * 2011-04-19 2013-04-25 Liebert Corporation Cooling system with tandem compressors and electronic expansion valve control
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US20130098086A1 (en) * 2011-04-19 2013-04-25 Liebert Corporation Vapor compression cooling system with improved energy efficiency through economization

Cited By (5)

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US20130061610A1 (en) * 2010-05-26 2013-03-14 Ping Zhang Screw Type Wind-Chilling Water Chiller Unit and Refrigeration Method Thereof
WO2016080463A1 (en) * 2014-11-21 2016-05-26 ヤンマー株式会社 Heat pump
JP2016099066A (en) * 2014-11-21 2016-05-30 ヤンマー株式会社 heat pump
US10591171B2 (en) 2014-11-21 2020-03-17 Yanmar Co., Ltd. Heat pump
US11566797B2 (en) 2014-11-21 2023-01-31 Yanmar Power Technology Co., Ltd. Heat pump

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WO2011147059A1 (en) 2011-12-01

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