WO2018076734A1 - 空调系统 - Google Patents

空调系统 Download PDF

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Publication number
WO2018076734A1
WO2018076734A1 PCT/CN2017/089641 CN2017089641W WO2018076734A1 WO 2018076734 A1 WO2018076734 A1 WO 2018076734A1 CN 2017089641 W CN2017089641 W CN 2017089641W WO 2018076734 A1 WO2018076734 A1 WO 2018076734A1
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WO
WIPO (PCT)
Prior art keywords
flow path
conditioning system
air conditioning
cooling
water
Prior art date
Application number
PCT/CN2017/089641
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English (en)
French (fr)
Inventor
代奇彬
万翔
罗荣君
Original Assignee
重庆美的通用制冷设备有限公司
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Application filed by 重庆美的通用制冷设备有限公司 filed Critical 重庆美的通用制冷设备有限公司
Priority to MYPI2019002153A priority Critical patent/MY197868A/en
Priority to EP17866203.7A priority patent/EP3534089A4/en
Publication of WO2018076734A1 publication Critical patent/WO2018076734A1/zh

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    • 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
    • F25B1/00—Compression machines, plants or systems with non-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
    • F25B31/006—Cooling of compressor or motor
    • 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
    • F25B31/02—Compressor arrangements of motor-compressor 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/31—Expansion valves
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/37—Capillary tubes
    • 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
    • F24F1/20—Electric components for separate outdoor units
    • F24F1/24—Cooling of electric components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • 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
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/047—Water-cooled condensers
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/07—Details of compressors or related parts
    • 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
    • F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
    • F25B25/005—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00 using primary and secondary systems
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/01—Geometry problems, e.g. for reducing size
    • 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
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/025—Compressor control by controlling speed
    • F25B2600/0253—Compressor control by controlling speed with variable speed
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the invention relates to the technical field of air conditioners, and in particular to an air conditioning system.
  • the chiller is generally a fixed-frequency unit. With the promotion and requirements of energy saving, the frequency conversion chiller has been developed to improve the energy-saving performance of the product and improve the integrated partial load value (IPLV) of the chiller.
  • IPLV integrated partial load value
  • the chiller of the variable frequency chiller is generally set separately from the frequency converter. Although this facilitates the independent production and installation of the frequency converter, the separate power line is required due to the separation of the frequency converter and the chiller, and the frequency converter needs to be independent. The machine room wastes space and costs a lot.
  • the present invention aims to solve at least one of the technical problems in the related art to some extent.
  • the present invention provides an air conditioning system that integrates a frequency converter into an air conditioning system, which avoids the need to separate the power line due to the separation of the frequency converter and the chiller, and does not require a separate machine room for accommodating the frequency converter. It avoids the waste of space and helps to reduce costs.
  • An air conditioning system includes: a compressor having an exhaust port and a return air port, a compressor including a variable frequency motor; and a condenser including a first refrigerant flow path and a first water flow path, a first end of the first refrigerant flow path is connected to the exhaust port; an evaporator, the evaporator includes a second refrigerant flow path and a second water flow path, and the second refrigerant flow path The first end is connected to the second end of the first refrigerant flow path, the second end of the second refrigerant flow path is connected to the return air port; the first inlet pipe and the first outlet pipe, the first The inlet pipe and the first outlet pipe are respectively connected to the water inlet and the water outlet of the first water flow path; the throttle element is connected in series at the second end of the first refrigerant flow path and the second Between the first ends of the refrigerant flow path; the frequency converter, the frequency converter is electrically connected to the variable frequency motor to adjust
  • the air conditioning system integrates the frequency converter into the air conditioning system by causing the air conditioning system to include the frequency converter and electrically connecting the frequency converter and the variable frequency motor to adjust the rotation speed of the variable frequency motor and supply power to the variable frequency motor. It avoids the need to separate the power line due to the separation of the inverter and the chiller, and does not need to separately set up a separate equipment room for accommodating the frequency converter, avoiding waste of space, helping to reduce costs, and helping to improve the IPLV or NPLV of the unit. To achieve the purpose of energy saving.
  • the frequency converter is fixed to the condenser or the evaporator.
  • the air conditioning system further includes a cooling flow path for cooling and cooling the frequency converter, the frequency converter including a cooling passage for dissipating heat from the heat generating component, the cooling passage being connected in series to the cooling On the road.
  • an inlet of the cooling flow path is connected to the first inlet pipe, and an outlet of the cooling flow path is connected to the first outlet pipe.
  • a water return valve is connected in series on the cooling flow path, and the return water valve is located between the frequency converter and the first water outlet pipe.
  • a filter is connected in series to the cooling flow path, and the filter is located between the first water inlet pipe and the frequency converter.
  • an inlet of the cooling flow path is connected between the condenser and a throttle element, and an outlet of the cooling flow path is connected between the throttle element and the evaporator.
  • the throttling element is an electronic expansion valve, a capillary or a thermal expansion valve.
  • the evaporator is a dry evaporator, a flooded evaporator or a falling film evaporator.
  • the air conditioning system is a chiller or a heat pump unit.
  • FIG. 1 is a partial structural schematic view of an air conditioning system in accordance with some embodiments of the present invention.
  • Air conditioning system 100 Air conditioning system 100;
  • Compressor 1 variable frequency motor 11; condenser 2; first inlet pipe 3; first outlet pipe 4; frequency converter 5; cooling flow path 6; inlet 61; outlet 62; return valve 7; filter 8; Valve 9.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining “first” or “second” may include at least one of the features, either explicitly or implicitly. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless specifically defined otherwise.
  • the language should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral; it can be a mechanical connection, it can be an electrical connection or can communicate with each other; it can be directly connected or indirectly through an intermediary medium. Connected, may be the internal communication of two elements or the interaction of two elements, unless explicitly defined otherwise.
  • the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the first feature "on” or “under” the second feature may be a direct contact of the first and second features, or the first and second features may be indirectly through an intermediate medium, unless otherwise explicitly stated and defined. contact.
  • the first feature "above”, “above” and “above” the second feature may be that the first feature is directly above or above the second feature, or merely that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.
  • An air conditioning system 100 which can be used to adjust an indoor ambient temperature, will be described below with reference to FIG.
  • the air conditioning system 100 can be a heat pump unit or a chiller unit.
  • an air conditioning system 100 may include a compressor 1, a condenser 2, an evaporator (not shown), a first inlet pipe 3, a first outlet pipe 4, and a throttle element. (not shown), and the frequency converter 5.
  • the compressor 1 has an exhaust port and a return air port. After the refrigerant is compressed by the compressor 1, a refrigerant of high temperature and high pressure can be formed and discharged from the exhaust port, and the refrigerant can be returned from the flow path of the air conditioning system 100. The port returns to the compressor 1.
  • variable frequency motor 11 is provided in the compressor 1, and the variable frequency motor 11 can be used to drive the crankshaft of the compressor 1 to facilitate compression of the refrigerant. It should be noted here that the specific structure and working principle of the compressor 1 are well known to those skilled in the art and will not be described in detail herein.
  • the condenser 2 includes a first refrigerant flow path and a first water flow path, and the first end of the first refrigerant flow path is connected to the exhaust port, whereby the high-temperature high-pressure refrigerant discharged from the exhaust port of the compressor 1 can flow to the first A refrigerant flow path, the refrigerant in the first refrigerant flow path can exchange heat with the water in the first water flow path.
  • the first inlet pipe 3 and the first outlet pipe 4 are respectively connected to the water inlet and the water outlet of the first water flow path, and the cooling water can flow through the first inlet pipe 3 through the water inlet to the first water flow path, and the water after the heat exchange can be The water outlet flows out and flows to the first water outlet pipe 4.
  • the evaporator such as a dry evaporator, a flooded evaporator or a falling film evaporator, includes a second refrigerant flow path and a second water flow path, a first end of the second refrigerant flow path and a second end of the first refrigerant flow path The ends are connected, the throttling element is connected in series between the second end of the first refrigerant flow path and the first end of the second refrigerant flow path, and the second end of the second refrigerant flow path is connected to the return port, whereby the compressor 1
  • the discharged high-temperature high-pressure refrigerant may first flow to the first refrigerant flow path, and the refrigerant exchanges heat with the water in the first water flow path in the first refrigerant flow path, and the heat-exchanged refrigerant flows out from the first refrigerant flow path, and then flows.
  • the throttling element is formed by a throttling and throttling of the throttling element to form a low-temperature low-pressure liquid refrigerant, and then flows to the second refrigerant flow path, and the refrigerant in the second refrigerant flow path exchanges heat with the water in the second water flow path, and the heat exchange
  • the rear refrigerant returns to the compressor 1 through the return port of the compressor 1.
  • the water inlet and the water outlet of the second water flow path are respectively connected to the second inlet pipe and the second outlet pipe, and the cooling water can flow from the second inlet pipe to the second water flow path through the water inlet, and the water after the heat exchange can be It flows out of the water outlet and flows to the second outlet pipe.
  • the arrangement and connection relationship of the first inlet pipe 3, the second inlet pipe, the first outlet pipe 4 and the second outlet pipe of the air conditioning system 100 are well known to those skilled in the art, here No further details will be given.
  • the throttling element is an electronic expansion valve, a capillary tube or a thermal expansion valve, whereby the structure is simple.
  • the frequency converter 5 can be fixed to the condenser 2 or the evaporator, whereby the structure is simple, and the structure is simplified, and the installation space is saved.
  • the air conditioning system 100 further includes a controller connectable to the frequency converter 5 so that the controller controls the frequency converter 5 to adjust the rotational speed of the variable frequency motor 11.
  • the controller may control the frequency converter 5 to adjust the rotational speed of the variable frequency motor 11 according to the temperature and/or pressure of the refrigerant discharged from the exhaust port of the compressor 1, or in other embodiments, the controller may also according to the second water flow described above.
  • the temperature control of the frequency converter 5 controls the rotational speed of the variable frequency motor 11, which is not specifically limited in the present invention.
  • the air conditioner system 100 includes the inverter 5, and the inverter 5 is electrically connected to the inverter motor 11 to adjust the rotation speed of the inverter motor 11 and supply power to the inverter motor 11, thereby turning on the inverter 5.
  • this avoids the need to separate the power line due to the separation of the frequency converter 5 and the chiller, and does not need to provide a separate machine room for accommodating the frequency converter 5, thereby avoiding waste of space and contributing to cost reduction.
  • the frequency converter 5 is fixed to the condenser 2.
  • the air conditioning system 100 further includes a cooling flow path 6 for cooling and cooling the frequency converter 5, the frequency converter 5 includes a cooling passage for dissipating heat from the heating element, and the cooling passage is connected in series to the cooling flow path 6. Therefore, it is beneficial to increase the service life of the frequency converter 5, and to prevent the temperature of the frequency converter 5 from being burnt out due to excessive temperature.
  • the inlet 61 of the cooling flow path 6 is connected to the first inlet pipe 3, and the outlet 62 of the cooling flow path 6 is connected to the first outlet pipe 4, that is, at the first inlet pipe 3 and the first outlet pipe A flow path, that is, the cooling flow path 6 is bypassed between the water pipes 4 to dissipate heat from the heat generating components of the frequency converter 5, whereby the cooling water in the first water inlet pipe 3 is divided into two paths, and flows all the way to the first water flow path.
  • the other flow to the cooling flow path 6, and the cooling water flowing to the cooling flow path 6 passes through the cooling passage and generates heat.
  • the present invention is not limited thereto.
  • the inlet of the cooling flow path 6 is connected to the second inlet pipe, and the outlet of the cooling flow path 6 is connected to the second outlet pipe, that is, in the second inlet pipe and the second outlet.
  • a flow path that is, the cooling flow path 6 is bypassed between the water pipes to dissipate heat from the heat generating component of the frequency converter 5, whereby the cooling water in the second water inlet pipe is divided into two paths, one way to the second water flow path, and the other way
  • the cooling water is flowed to the cooling flow path 6, and the cooling water flowing to the cooling flow path 6 passes through the cooling passage and dissipates heat from the heating element, and then the cooling water flows out of the cooling passage and flows back to the cooling flow path 6, and finally flows to the second outlet pipe.
  • a return valve 7 is connected in series to the cooling flow path 6, and the return valve 7 is located between the inverter 5 and the first outlet pipe 4, thereby facilitating adjustment of the amount of return water flowing to the first outlet pipe 4 to equalize the cooling flow path. 6
  • the pressure of the water flow between the inlet 61 and the outlet 62.
  • cooling flow path 6 is further connected in series with an inlet valve 9 between the frequency converter 5 and the first inlet pipe 3, thereby facilitating adjustment of the amount of water at the inlet 61 to equalize the cooling flow path 6.
  • a filter 8 is connected in series to the cooling flow path 6, and the filter 8 is located between the first inlet pipe 3 and the inverter 5. Thereby, the cooling water flowing through it is filtered to improve the purity of the water flowing to the cooling passage, which is beneficial to improve the heat exchange effect.
  • the inlet 61 of the cooling flow path 6 is connected between the condenser 2 and the throttling element, and the outlet 62 of the cooling flow path 6 is connected between the throttling element and the evaporator, whereby the refrigerant is condensed
  • the device 2 can be divided into two paths, one of which flows to the throttling element and the other of which flows to the cooling flow path 6, and the refrigerant flowing into the cooling flow path 6 can flow to the cooling passage to dissipate the heat generating component, and then the refrigerant flows to the cooling flow path 6 The other part flows to the evaporator. In this way, it is beneficial to improve the heat dissipation effect.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Inverter Devices (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

一种空调系统(100)，包括：压缩机(1)，压缩机(1)内设有变频电机(11)；冷凝器(2)，冷凝器(2)包括第一冷媒流路和第一水流路；蒸发器，蒸发器包括第二冷媒流路和第二水流路；第一进水管(3)和第一出水管(4)，第一进水管(3)和第一出水管(4)分别与第一水流路的进水口和出水口相连；节流元件，节流元件串联在第一冷媒流路的第二端与第二冷媒流路的第一端之间；变频器(5)，变频器(5)与变频电机(11)电连接以调整变频电机(11)的转速且对变频电机(11)供电。

Description

空调系统 技术领域
本发明涉及空调技术领域，尤其是涉及一种空调系统。
背景技术
冷水机组一般是定频机组，随着节能的推进和要求，为提升产品的节能性能，提升冷水机组的综合部分负荷性能系数(IPLV,integrated part load value)才发展了变频冷水机组。
一般地，变频冷水机组的冷水机组与变频器一般分开设置，这虽然方便了变频器的独立生产和安装，但是由于变频器和冷水机组的分离，需要单独走动力线，而且变频器需要独立的机房，浪费空间，成本高。
发明内容
本发明旨在至少在一定程度上解决相关技术中的技术问题之一。为此，本发明提出一种空调系统，可将变频器集成在空调系统中，这避免了由于变频器和冷水机组的分离而需要单独走动力线，而且无需设置用于容纳变频器的独立机房，避免了空间的浪费，有利于降低成本。
根据本发明实施例的空调系统，包括：压缩机，所述压缩机具有排气口和回气口，所述压缩机内设有变频电机；冷凝器，所述冷凝器包括第一冷媒流路和第一水流路，所述第一冷媒流路的第一端与所述排气口相连；蒸发器，所述蒸发器包括第二冷媒流路和第二水流路，所述第二冷媒流路的第一端与所述第一冷媒流路的第二端相连，所述第二冷媒流路的第二端与所述回气口相连；第一进水管和第一出水管，所述第一进水管和第一出水管分别与所述第一水流路的进水口和出水口相连；节流元件，所述节流元件串联在所述第一冷媒流路的第二端与所述第二冷媒流路的第一端之间；变频器，所述变频器与所述变频电机电连接以调整所述变频电机的转速且对所述变频电机供电。
根据本发明实施例的空调系统，通过使得空调系统包括变频器，并使变频器与变频电机电连接以调整变频电机的转速且对变频电机进行供电，从而将变频器集成在空调系统上，这避免了由于变频器和冷水机组的分离而需要单独走动力线，而且无需另外设置用于容纳变频器的独立机房，避免了空间的浪费，有利于降低成本，同时有利于提高机组的IPLV或NPLV，达到节能的目的。
根据本发明的一些实施例，所述变频器固定在所述冷凝器或所述蒸发器上。
根据本发明的一些实施例，空调系统还包括用于对所述变频器进行冷却降温的冷却流路，所述变频器包括对发热元件进行散热的冷却通道，所述冷却通道串联在所述冷却流路上。
具体地，所述冷却流路的进口与所述第一进水管相连，所述冷却流路的出口与所述第一出水管相连。
具体地，所述冷却流路上串联有回水阀，所述回水阀位于所述变频器和所述第一出水管之间。
具体地，所述冷却流路上串联有过滤器，所述过滤器位于所述第一进水管和所述变频器之间。
具体地，所述冷却流路的进口连接至所述冷凝器和节流元件之间，所述冷却流路的出口连接至所述节流元件和所述蒸发器之间。
根据本发明的一些实施例，所述节流元件为电子膨胀阀、毛细管或热力膨胀阀。
根据本发明的一些实施例，所述蒸发器为干式蒸发器、满液式蒸发器或降膜式蒸发器。
根据本发明的一些实施例，所述空调系统为冷水机组或热泵机组。
附图说明
图1是根据本发明一些实施例的空调系统的部分结构示意图。
附图标记：
空调系统100；
压缩机1；变频电机11；冷凝器2；第一进水管3；第一出水管4；变频器5；冷却流路6；进口61；出口62；回水阀7；过滤器8；进水阀9。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术 语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接或彼此可通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
下面参考图1描述根据本发明实施例的空调系统100，该空调系统100可用于调节室内环境温度。例如，该空调系统100可以为热泵机组或冷水机组。
如图1所示，根据本发明实施例的空调系统100，可以包括压缩机1、冷凝器2、蒸发器(图未示出)、第一进水管3、第一出水管4、节流元件(图未示出)、和变频器5。
具体地，压缩机1具有排气口和回气口，冷媒经压缩机1压缩后可形成高温高压的冷媒，并从排气口排出，冷媒在空调系统100的流路上换热后，可从回气口返回到压缩机1。
压缩机1内设有变频电机11，变频电机11可用于驱动压缩机1的曲轴工作以便于对冷媒的压缩。此处需要说明的是，关于压缩机1的具体结构和工作原理，已被本领域技术人员所熟知，此处不再进行详细说明。
冷凝器2包括第一冷媒流路和第一水流路，第一冷媒流路的第一端与排气口相连，由此，从压缩机1的排气口排出的高温高压的冷媒可流向第一冷媒流路，第一冷媒流路中的冷媒可与第一水流路中的水进行换热。第一进水管3和第一出水管4分别与第一水流路的进水口和出水口相连，冷却水可经过第一进水管3经过进水口流向第一水流路，换热后的水可从出水口流出并流向第一出水管4。
蒸发器例如干式蒸发器、满液式蒸发器或降膜式蒸发器，包括第二冷媒流路和第二水流路，第二冷媒流路的第一端与第一冷媒流路的第二端相连，节流元件串联在第一冷媒流路的第二端与第二冷媒流路的第一端之间，第二冷媒流路的第二端与回气口相连，由此，压缩机1排出的高温高压的冷媒可首先流向第一冷媒流路，冷媒在第一冷媒流路内与第一水流路中的水进行换热，换热后的冷媒从第一冷媒流路流出后，流向节流元件，经节流元件节流降压后形成低温低压的液态冷媒，随后流向第二冷媒流路，第二冷媒流路中的冷媒与第二水流路中的水进行换热，换热后冷媒经过压缩机1的回气口返回到压缩机1。
具体地，第二水流路的进水口和出水口分别与第二进水管和和第二出水管相连，冷却水可从第二进水管经过进水口流向第二水流路，换热后的水可从出水口流出并流向第二出水管。此处需要说明的是，关于空调系统100第一进水管3、第二进水管、第一出水管4和第二出水管的排管布置以及连接关系已被本领域技术人员所熟知，此处不再进行详细说明。
可选地，节流元件为电子膨胀阀、毛细管或热力膨胀阀，由此结构简单。
变频器5与变频电机11电连接以调整变频电机11的转速且对变频电机11供电。例如，变频器5与外接电源相连，变频电机11通过电源线与变频器5电连接以实现对变频电机11的供电，并调整变频电机11的转速。从而实现对压缩机1的压缩气缸的频率进行调整，可使得压缩机1达到节能的目的。
具体地，变频器5可固定在冷凝器2或蒸发器上，由此，结构简单，而且有利于简化结构，节约安装空间。
具体地，空调系统100还包括控制器，控制器可与变频器5相连，以便于控制器控制变频器5调整变频电机11的转速。例如，控制器可根据压缩机1的排气口排出的冷媒的温度和/或压力控制变频器5以调整变频电机11的转速，或者在其它实施例中，控制器还可以根据上述第二水流路的温度控制变频器5以调整变频电机11的转速，本发明对此不作具体限定。
根据本发明实施例的空调系统100，通过使得空调系统100包括变频器5，并使变频器5与变频电机11电连接以调整变频电机11的转速且对变频电机11供电，从而将变频器5集成在空调系统100上，这避免了由于变频器5和冷水机组的分离而需要单独走动力线，而且无需设置用于容纳变频器5的独立机房，避免了空间的浪费，有利于降低成本，同时有利于提高机组的IPLV或NPLV(integrated part load value，非ARI标准工况下部分负荷值)，达到节能的目的。
优选地，如图1所示，变频器5固定在冷凝器2上。
在本发明的一些实施例中，空调系统100还包括用于对变频器5进行冷却降温的冷却流路6，变频器5包括对发热元件进行散热的冷却通道，冷却通道串联在冷却流路6上，由此有利于提高变频器5的使用寿命，避免变频器5因长时间工作而导致的温度过高被烧坏。
具体地，如图1所示，冷却流路6的进口61与第一进水管3相连，冷却流路6的出口62与第一出水管4相连，即在第一进水管3和第一出水管4之间旁通一条流路即所述冷却流路6以对变频器5的发热元件进行散热，由此，第一进水管3内的冷却水分成两路，一路流向第一水流路，另一路流向冷却流路6，流向冷却流路6的冷却水经过冷却通道并对发热 元件进行散热，随后冷却水从冷却通道流出并流回冷却流路6，并最终流向第一出水管4。由此，不但有利于提高散热效果，而且还可避免变频器5出现结霜或凝露等现象而影响变频器5的使用。当然，本发明不限于此，在其它实施例中，冷却流路6的进口与第二进水管相连，冷却流路6的出口与第二出水管相连，即在第二进水管和第二出水管之间旁通一条流路即所述冷却流路6以对变频器5的发热元件进行散热，由此，第二进水管内的冷却水分成两路，一路流向第二水流路，另一路流向冷却流路6，流向冷却流路6的冷却水经过冷却通道并对发热元件进行散热，随后冷却水从冷却通道流出并流回冷却流路6，并最终流向第二出水管。
具体地，冷却流路6上串联有回水阀7，回水阀7位于变频器5和第一出水管4之间，从而便于调节流向第一出水管4的回水量，以均衡冷却流路6上进口61和出口62之间的水流的压力。
进一步地，冷却流路6上还串联有进水阀9，进水阀9位于变频器5和第一进水管3之间，从而便于调节进口61处的进水量，以均衡冷却流路6上进口61和出口62之间的水流的压力。
进一步地，冷却流路6上串联有过滤器8，过滤器8位于第一进水管3和变频器5之间。从而对流经其的冷却水进行过滤，以提高流向冷却通道的水的纯净度，有利于提高换热效果。
在另一些实施例中，冷却流路6的进口61连接至冷凝器2和节流元件之间，冷却流路6的出口62连接至节流元件和蒸发器之间，由此，冷媒从冷凝器2流出后可分成两路，其中一路流向节流元件，另一路流向冷却流路6，流向冷却流路6内的冷媒可流向冷却通道以对发热元件进行散热，随后冷媒流向冷却流路6的另一部分并流向蒸发器。这样，有利于提高散热效果。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本发明的限制，本领域的普通技术人员在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (10)

  1. 一种空调系统，其特征在于，包括：
    压缩机，所述压缩机具有排气口和回气口，所述压缩机内设有变频电机；
    冷凝器，所述冷凝器包括第一冷媒流路和第一水流路，所述第一冷媒流路的第一端与所述排气口相连；
    蒸发器，所述蒸发器包括第二冷媒流路和第二水流路，所述第二冷媒流路的第一端与所述第一冷媒流路的第二端相连，所述第二冷媒流路的第二端与所述回气口相连；
    第一进水管和第一出水管，所述第一进水管和第一出水管分别与所述第一水流路的进水口和出水口相连；
    节流元件，所述节流元件串联在所述第一冷媒流路的第二端与所述第二冷媒流路的第一端之间；
    变频器，所述变频器与所述变频电机电连接以调整所述变频电机的转速且对所述变频电机供电。
  2. 根据权利要求1所述的空调系统，其特征在于，所述变频器固定在所述冷凝器或所述蒸发器上。
  3. 根据权利要求1-2中任一项所述的空调系统，其特征在于，还包括用于对所述变频器进行冷却降温的冷却流路，所述变频器包括对发热元件进行散热的冷却通道，所述冷却通道串联在所述冷却流路上。
  4. 根据权利要求3所述的空调系统，其特征在于，所述冷却流路的进口与所述第一进水管相连，所述冷却流路的出口与所述第一出水管相连。
  5. 根据权利要求4所述的空调系统，其特征在于，所述冷却流路上串联有回水阀，所述回水阀位于所述变频器和所述第一出水管之间。
  6. 根据权利要求4所述的空调系统，其特征在于，所述冷却流路上串联有过滤器，所述过滤器位于所述第一进水管和所述变频器之间。
  7. 根据权利要求3所述的空调系统，其特征在于，所述冷却流路的进口连接至所述冷凝器和节流元件之间，所述冷却流路的出口连接至所述节流元件和所述蒸发器之间。
  8. 根据权利要求1-7中任一项所述的空调系统，其特征在于，所述节流元件为电子膨胀阀、毛细管或热力膨胀阀。
  9. 根据权利要求1-8中任一项所述的空调系统，其特征在于，所述蒸发器为干式蒸发 器、满液式蒸发器或降膜式蒸发器。
  10. 根据权利要求1-9中任一项所述的空调系统，其特征在于，所述空调系统为冷水机组或热泵机组。
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