WO2020019386A1 - High-efficiency evaporative condenser with hot and cold complementary variable function - Google Patents

High-efficiency evaporative condenser with hot and cold complementary variable function Download PDF

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Publication number
WO2020019386A1
WO2020019386A1 PCT/CN2018/101507 CN2018101507W WO2020019386A1 WO 2020019386 A1 WO2020019386 A1 WO 2020019386A1 CN 2018101507 W CN2018101507 W CN 2018101507W WO 2020019386 A1 WO2020019386 A1 WO 2020019386A1
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Prior art keywords
heat exchange
heat
branches
row
cold
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PCT/CN2018/101507
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French (fr)
Chinese (zh)
Inventor
郑兆志
李财航
罗志峰
陈志浩
莫浩贤
严思远
刘林彬
李玉春
何钦波
李锡宇
张嘉庆
郭宇航
李改
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佛山光腾新能源股份有限公司
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Publication of WO2020019386A1 publication Critical patent/WO2020019386A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-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
    • F24F5/0096—Air-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 combined with domestic apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • 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
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • 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
    • 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
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/006—Accumulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0008—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one medium being in heat conductive contact with the conduits for the other medium

Definitions

  • the invention relates to the technical field of heat exchange, and more particularly, to a high-efficiency evaporative condenser with complementary functions of cold and heat.
  • the combined heat pump unit of air conditioner and hot water machine is commonly known as air source triple supply, because it cannot solve many coordination problems of the two systems of one machine in the realization of multiple modes, such as the suboptimal refrigerant distribution in different modes.
  • Technical problems such as poor proportioning, poor adaptability to changes in working conditions, low hot water production efficiency and air conditioning efficiency, complicated pipeline and piping control, complicated electrical control, difficult oil return, compressor burnout, many failures, and difficult to repair, etc., have led to this type of product Can not meet the market demand, there are many product problems, unable to survive in the market, various heat pump manufacturers stopped producing such products.
  • the object of the present invention is to provide a high-efficiency evaporation condenser with complementary functions of cold and heat.
  • the two systems of the air conditioner and the hot water machine are relatively independent and involve each other, the condenser of the air conditioner and the evaporator of the hot water machine are combined.
  • it realizes the "yin and yang complementation" of cold and heat, and achieves multiple functions such as doubling the heat exchange area, complementary defrosting, and energy storage heating for cascade refrigeration and dehumidifiers, especially in systems with a new air source triple supply system. Provided the necessary technical support.
  • the technical solution for solving the technical problem of the present invention is: a high-efficiency evaporative condenser with complementary functions of cold and heat, including fins, straight tubes interposed between the fins, and two ends of the straight tubes are connected through elbows to form an S-shaped
  • the refrigerant running line is characterized in that it includes 2N side-by-side straight tube rows, where N is a natural number, and the straight tube row includes two heat exchange branches.
  • the straight tubes of each heat exchange branch pass through the elbow on the heat exchanger side. Connected in rows and cross-connected on the other side of the heat exchanger to form a plurality of U-shaped pipe segments in the same row on each side of the heat exchange.
  • the U-shaped pipe segments in the same row of each heat exchange branch are alternately rotated from one row in order.
  • the straight pipe row enters another row of straight pipe rows through the crossing elbow.
  • Each heat exchange branch is divided into three branches: upper, middle, and lower branches.
  • the three branches of the first heat exchange branch are connected to the first liquid separator on the inlet side and the first liquid collector on the outlet side.
  • the inlet side of the third branch of the road is connected to the second liquid separator, and the outlet side is connected to the second liquid collector.
  • the first liquid separator and the first liquid collector are connected in a refrigeration circuit including the first compressor and the evaporator, and the second liquid separator and the second liquid collector are connected in a refrigerant circuit including the second compressor and the shell-and-tube heat exchanger. Refrigeration circuit.
  • N is selected as 2 or 3.
  • each heat exchange branch can be divided into two branches arranged in parallel.
  • the inlet side of the two branches of the first heat exchange branch is connected to the first liquid separator and the outlet side is connected to the first liquid collector.
  • the inlet side of the two branches of the second heat exchange branch is connected to the second liquid separator and the outlet side is connected to the second liquid collector.
  • the evaporator and the condenser are compounded together by using a bridging method, which is relatively independent and organically combined to ensure that the two mediums, cold and hot, achieve complementary heat and cold.
  • a bridging method which is relatively independent and organically combined to ensure that the two mediums, cold and hot, achieve complementary heat and cold.
  • the “braid braid” method is used for crossover and volt connection respectively to ensure that the pipes of the two refrigeration systems are staggered and interspersed with each other to achieve “cold and hot complementary” energy bridging.
  • FIG. 1 is a schematic diagram of a refrigeration system of an air-source triple-supply air-conditioning hot water unit using a high-efficiency evaporative condenser with complementary functions of cold and heat of the present invention.
  • FIG. 2 is a structural schematic diagram (front view) of a high-efficiency evaporative condenser with complementary functions of cold and heat according to the present invention.
  • Fig. 3 is a structural schematic view (side view) of a high-efficiency evaporative condenser with complementary functions of cold and heat according to the present invention.
  • FIG. 4 is a structural schematic diagram (top view) of a high-efficiency evaporative condenser with complementary functions of cold and heat according to the present invention.
  • the invention provides a high-efficiency evaporator condenser with complementary functions of cold and heat, which includes fins 21 and straight tubes interposed between the fins.
  • the two ends of the straight tubes are connected by elbows 22 to form an S-shape.
  • the refrigerant going line also includes four rows of side-by-side straight pipe rows (25, 26, 27, 28).
  • the four-row straight pipe row includes two heat exchange branches (101, 102).
  • the tubes are connected by the elbow 22 on the left side of the heat exchanger in a row and cross-connected on the other side of the heat exchanger.
  • the elbow 22 and the two straight tubes connected by the elbow 22 form the same row of U-shaped pipe segments, that is Looking at the left side of the heat exchanger, the two straight tubes of each U-shaped tube segment in the same row are on the same vertical row, including straight tube rows (25, 26, 27, 28).
  • the U-shaped pipe sections of the same row of the branch roads alternate from the straight pipe rows in one row to the other straight pipe rows through the crossing elbows in sequence.
  • the same row of U-shaped pipe sections of the first heat exchange branch 101 first cross from the straight pipe row 25 to the same row of U-shaped pipe sections on the straight pipe row 26 through the large elbow 221, and then return to the straight pipe row through the small elbow 222
  • the U-shaped pipe section of the same row of 25 is then bridged to the straight pipe row 26 through the large elbow 221, and then returns to the straight pipe row 25, so that the rotation is changed.
  • it When it reaches the bottom (on the straight tube row 26), it is connected to the straight tube row 27 through a guide pipe (not shown), and the turns are alternated between the straight tube row 27 and the straight tube row 28, and then the same The way leaves from the top of the straight tube row 27.
  • the second heat exchange branch 102 first comes out of the straight pipe row 26, then enters the straight pipe row 25 through a small elbow (see the elbow small 222 indicated by the dotted line), and then passes through the large elbow (see the large The elbow 221) returns to the straight pipe row 26. Finally it leaves on top of the straight tube row 28.
  • the pipes of the heat exchanger are staggered, and the heat exchange through the fins is more thorough, thereby improving the complementary efficiency of cold and heat.
  • Each heat exchange branch is divided into three branches arranged in parallel, including upper, middle and lower branches.
  • L1 represents the upper branch of the four heat exchange branches
  • L2 represents the middle branch of the four heat exchange branches
  • L3 represents the lower branch of the four heat exchange branches
  • the three sets of branches are connected in parallel to make the overall temperature distribution of the heat exchanger more Even.
  • the first heat exchange branch 101 and the second heat exchange branch 102 are distributed side by side in two ways, that is, in In each branch, the first heat exchange branch 101 enters from the top with two pipes and leaves from the bottom of the branch. Therefore, six branches are distributed in the entire heat exchanger. Similarly, the second heat exchange branch 102 is also distributed in the upper, middle, and lower branches with six branches.
  • the first heat exchange branch and the second heat exchange branch are reversed from each other, that is, the refrigerant of the first heat exchange branch enters the heat exchanger from the top of the heat exchanger branch, and the second heat exchange The refrigerant of the branch circuit enters the heat exchanger from the bottom of the heat exchanger branch.
  • the heat exchanger uses a double-row, three-in, three-out structure
  • the three branches of each heat-exchange branch are connected through a liquid separator and a collector, and all the three branches of the first heat-exchange branch are connected by the inlets.
  • the first liquid separator and all the outlets are connected to the first liquid collector;
  • all three branches of the second heat exchange branch are connected to the second liquid separator and the outlets are connected to the second liquid collector.
  • the first liquid separator and the first liquid collector are connected in a first refrigeration circuit, and the second liquid separator and the second liquid collector are connected in a second refrigeration circuit.
  • the four heat exchange branches belong to two independent refrigeration circuits.
  • the first refrigeration circuit includes a first compressor 1, a first four-way solenoid valve 2, an evaporation condenser 10, a first throttle element 3, an evaporator 4, and a first accumulator (not shown). ).
  • the second refrigeration circuit includes a second compressor 11, a second four-way solenoid valve 12, a shell and tube heat exchanger 14, a second throttling element 13, an evaporation condenser 10, and a second reservoir (not shown).
  • Second compressor 11 high pressure gas pipe ⁇ second four-way solenoid valve 12: a1 end communicates with b1 end ⁇ refrigerant pipe of shell and tube heat exchanger 14 ⁇ second throttle element 13 ⁇ liquid pipe ⁇ evaporative condenser 10 F2 branch ⁇ second four-way solenoid valve 12: c1 end communicates with d1 end ⁇ low pressure gas pipe ⁇ gas-liquid separator (or second liquid reservoir) ⁇ second compressor 11.
  • a compressor In the existing triple-supply hot and cold water heat pump system, a compressor is used to drive the refrigerant cycle of the system.
  • the system is equipped with a hot water heat exchanger, an evaporator, and a cold water heat exchanger.
  • the cold water heat exchanger or hot water heat exchanger is not used as a condensation system, which is prone to unbalanced conditions, leading to the problem of system instability.
  • the invention combines the condenser of the air conditioner and the evaporator of the hot water machine into one, and belongs to two independent refrigeration systems, which is equivalent to combining The combination of two independent refrigeration system evaporators and condensers makes the overall system more optimized.
  • the specifications of the heat exchanger are 4 in-line, fork row, and 25-hole pitch.
  • the integral fins are used to bridge the two casing paths.
  • the pipes of this heat exchanger are staggered and improved. Cold and hot complementary efficiency.
  • the heat exchanger is designed into a double-three-in, three-out structure, and the overall performance is optimized.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
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Abstract

Disclosed is a high-efficiency evaporative condenser with a hot and cold complementary variable function. The evaporative condenser comprises fins (21), and straight pipes interspersed between the fins (21), wherein two ends of each of the straight pipes are connected to each other by means of an elbow (22) to form an S-shaped refrigerant trend line; and same also comprises four straight pipe rows (25, 26, 27, 28) arranged side by side, wherein two heat exchange branches (101, 102) are comprised in the straight pipe rows (25, 26, 27, 28); the straight pipes of each of the heat exchange branches (101, 102) are in prostrate connection in rows at one side of a heat exchanger by means of the elbow (22) and are in cross-bridging at the other side of the heat exchanger; and multiple U-shaped pipe sections in the same row are formed at the prostrate connection side, and the U-shaped pipe sections in the same row of each of the heat exchange branches (101, 102) sequentially enter, in turns in a staggered manner, the other straight pipe row from one straight pipe row by means of the elbow for bridging. Bridging and prostrate connections are respectively implemented in a braided manner, thus ensuring that the pipelines of two refrigerating systems are in staggered interspersion, thereby realizing hot and cold complementary energy bridging.

Description

一种冷热互补变功能高效蒸发冷凝器High-efficiency evaporation condenser with complementary functions of cold and heat 技术领域Technical field
本发明涉及热量交换技术领域，更具体地说，是涉及一种冷热互补变功能高效蒸发冷凝器。The invention relates to the technical field of heat exchange, and more particularly, to a high-efficiency evaporative condenser with complementary functions of cold and heat.
背景技术Background technique
空调与热水机组合式热泵机组俗称空气源三联供，由于不能很好地解决一机二***在实现多模式情况下的诸多协调性问题，例如：不同模式下制冷剂分配达不到最佳配比、工况变化的适应性差、制热水效率和空调效率低，管道及管道控制复杂、电气控制复杂、回油困难压缩机烧毁、故障多、难以修复等等技术问题，导致该类产品不能满足市场需求，产品问题多多、无法在市场上生存下去，各种热泵厂家停止生产该类产品。The combined heat pump unit of air conditioner and hot water machine is commonly known as air source triple supply, because it cannot solve many coordination problems of the two systems of one machine in the realization of multiple modes, such as the suboptimal refrigerant distribution in different modes. Technical problems such as poor proportioning, poor adaptability to changes in working conditions, low hot water production efficiency and air conditioning efficiency, complicated pipeline and piping control, complicated electrical control, difficult oil return, compressor burnout, many failures, and difficult to repair, etc., have led to this type of product Can not meet the market demand, there are many product problems, unable to survive in the market, various heat pump manufacturers stopped producing such products.
发明内容Summary of the Invention
本发明的目的在于提供一种冷热互补变功能高效蒸发冷凝器，按空调与热水机两个***相对独立又互相牵扯辅助的思路，将空调的冷凝器与热水机的蒸发器合二为一，实现了冷热“阴阳互补”，为复叠式制冷、除湿机、特别是应用在新空气源三联供的***中实现换热面积倍增、互补除霜、蓄能供暖等多种功能的转换提供必要的技术支持。The object of the present invention is to provide a high-efficiency evaporation condenser with complementary functions of cold and heat. According to the idea that the two systems of the air conditioner and the hot water machine are relatively independent and involve each other, the condenser of the air conditioner and the evaporator of the hot water machine are combined. For one, it realizes the "yin and yang complementation" of cold and heat, and achieves multiple functions such as doubling the heat exchange area, complementary defrosting, and energy storage heating for cascade refrigeration and dehumidifiers, especially in systems with a new air source triple supply system. Provided the necessary technical support.
本发明解决其技术问题的技术方案是：一种冷热互补变功能高效蒸发冷凝器，包括翅片、穿插在翅片中间的直管，直管的两端通过弯头连接以形成S形的制冷剂走向线路，其特征在于：包括2N排并排的直管排，N为自然数，直管排包括两换热支路，每一换热支路的直管在换热器一侧通过弯头按排伏接、在换热器另一侧交叉跨接，伏接侧形成多个同排U形管段，每一换热支路的同排U形管段按先后顺序相错轮流地从一排的直管排通过跨接的弯头进入另一排直管排。The technical solution for solving the technical problem of the present invention is: a high-efficiency evaporative condenser with complementary functions of cold and heat, including fins, straight tubes interposed between the fins, and two ends of the straight tubes are connected through elbows to form an S-shaped The refrigerant running line is characterized in that it includes 2N side-by-side straight tube rows, where N is a natural number, and the straight tube row includes two heat exchange branches. The straight tubes of each heat exchange branch pass through the elbow on the heat exchanger side. Connected in rows and cross-connected on the other side of the heat exchanger to form a plurality of U-shaped pipe segments in the same row on each side of the heat exchange. The U-shaped pipe segments in the same row of each heat exchange branch are alternately rotated from one row in order. The straight pipe row enters another row of straight pipe rows through the crossing elbow.
每一换热支路分为上、中、下三分支并联排列，第一换热支路三分支的进口侧连接第一分液器、出口侧连接第一集液器；第二换热支路三分支的进口侧连接第二分液器、出口侧连接第二集液器。Each heat exchange branch is divided into three branches: upper, middle, and lower branches. The three branches of the first heat exchange branch are connected to the first liquid separator on the inlet side and the first liquid collector on the outlet side. The inlet side of the third branch of the road is connected to the second liquid separator, and the outlet side is connected to the second liquid collector.
第一分液器与第一集液器连接在包括第一压缩机和蒸发器的制冷回路中，第二分液器与第二集液器连接在包括第二压缩机和壳管换热器的制冷回路中。The first liquid separator and the first liquid collector are connected in a refrigeration circuit including the first compressor and the evaporator, and the second liquid separator and the second liquid collector are connected in a refrigerant circuit including the second compressor and the shell-and-tube heat exchanger. Refrigeration circuit.
上述的2N排并排的直管排中，N的数值选取为2或3。In the above-mentioned 2N side-by-side straight pipe row, the value of N is selected as 2 or 3.
作为另一种实施方式，每一换热支路可分为上、下两分支并联排列，第一换热支路两分支的进口侧连接第一分液器、出口侧连接第一集液器；第二换热支路两分支的进口侧连接第二分液器、出口侧连接第二集液器。As another implementation manner, each heat exchange branch can be divided into two branches arranged in parallel. The inlet side of the two branches of the first heat exchange branch is connected to the first liquid separator and the outlet side is connected to the first liquid collector. ; The inlet side of the two branches of the second heat exchange branch is connected to the second liquid separator and the outlet side is connected to the second liquid collector.
本发明的有益效果是：The beneficial effects of the present invention are:
本发明在翅片式冷热互补变功能高效蒸发冷凝器的设计上，利用桥接方式，将蒸发器与冷凝器复合在一起，相对独立中有机结合，保证冷热两种介质通过实现冷热互补，同时，通过“编辫子”的管路布局设计，提高了热传导效率。In the design of the fin-type high-efficiency evaporative condenser with complementary functions of cold and heat, the evaporator and the condenser are compounded together by using a bridging method, which is relatively independent and organically combined to ensure that the two mediums, cold and hot, achieve complementary heat and cold. At the same time, through the "braided" pipe layout design, heat conduction efficiency has been improved.
通过翅片桥接和管道交错的设计，实现冷热互补高效换热，可以用于复叠式制冷、除湿机、特别是应用在新空气源三联供的***中实现换热面积倍增、互补除霜、蓄能供暖等多种功能的转换。Through the design of fin bridge and staggered pipes, complementary cold and heat efficient heat exchange can be achieved, which can be used in cascade refrigeration, dehumidifier, especially in the new air source triple supply system to achieve double heat exchange area and complementary defrost. , Energy storage heating and other functions.
通过“编辫子”的方式分别跨接和伏接，保证两种制冷***的管道相互交错穿插，实现“冷热互补”能量桥接。The “braid braid” method is used for crossover and volt connection respectively to ensure that the pipes of the two refrigeration systems are staggered and interspersed with each other to achieve “cold and hot complementary” energy bridging.
保证了空调***和热水***具备储能吞吐和互助能力，保证寒冷地区的优越使用。Ensure that the air conditioning system and hot water system have energy storage throughput and mutual assistance capabilities, and ensure superior use in cold regions.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1是应用本发明冷热互补变功能高效蒸发冷凝器的空气源三联供空调热水机组的制冷***示意图。FIG. 1 is a schematic diagram of a refrigeration system of an air-source triple-supply air-conditioning hot water unit using a high-efficiency evaporative condenser with complementary functions of cold and heat of the present invention.
图2是本发明冷热互补变功能高效蒸发冷凝器结构示意图(主视图)。FIG. 2 is a structural schematic diagram (front view) of a high-efficiency evaporative condenser with complementary functions of cold and heat according to the present invention.
图3是本发明冷热互补变功能高效蒸发冷凝器结构示意图(侧视图)。Fig. 3 is a structural schematic view (side view) of a high-efficiency evaporative condenser with complementary functions of cold and heat according to the present invention.
图4是本发明冷热互补变功能高效蒸发冷凝器结构示意图(俯视图)。FIG. 4 is a structural schematic diagram (top view) of a high-efficiency evaporative condenser with complementary functions of cold and heat according to the present invention.
具体实施方式detailed description
下面详细描述本发明的实施例。Hereinafter, embodiments of the present invention will be described in detail.
如图1-4所示，发明提供一种冷热互补变功能高效蒸发冷凝器，包括翅片21、穿插在翅片中间的直管，直管的两端通过弯头22连接以形成S形的制冷剂走向线路，还包括四排并排的直管排(25、26、27、28)，四排直管排包括两换热支路(101、102)，每一换热支路的直管在换热器左侧通过弯头22按排伏接、在换热器另一侧交叉跨接，伏接侧由弯头22和相连接的两直管形成同排U形管段，即从换热器的左侧看，每一个同排U形管段的两直管都是在同一竖排的直管排上的，包括直管排(25、26、27、28)，每一换热支路的同排U形管段按先后顺序相错轮流地从一排的直管排通过跨接的弯头进入另一排直管排。第一换热支路101的同排U形管段首先从直管排25通过大弯头221跨接到直管排26上的同排U形管段，然后通过小弯头222回到直管排25的同排U形管段，再通过大弯头221跨接到直管排26上，然后再回到直管排25，如此轮流变换。当它走到底部时(在直管排26上)，通过引管(图未示)连接到直管排27，在直管排27与直管排28之间轮流变换走向，然后按同样的方式从直管排27的顶部离开。同样的，第二换热支路102首先从直管排26出来，然后通过小弯 头(见虚线表示的弯头小222)进入直管排25，再通过大弯头(见虚线表示的大弯头221)回到直管排26。最后在直管排28的顶部离开。如此一来，使换热器的管道交错，通过翅片热量交换更彻底，从而提高冷热互补效率。As shown in Figures 1-4, the invention provides a high-efficiency evaporator condenser with complementary functions of cold and heat, which includes fins 21 and straight tubes interposed between the fins. The two ends of the straight tubes are connected by elbows 22 to form an S-shape. The refrigerant going line also includes four rows of side-by-side straight pipe rows (25, 26, 27, 28). The four-row straight pipe row includes two heat exchange branches (101, 102). The tubes are connected by the elbow 22 on the left side of the heat exchanger in a row and cross-connected on the other side of the heat exchanger. The elbow 22 and the two straight tubes connected by the elbow 22 form the same row of U-shaped pipe segments, that is Looking at the left side of the heat exchanger, the two straight tubes of each U-shaped tube segment in the same row are on the same vertical row, including straight tube rows (25, 26, 27, 28). The U-shaped pipe sections of the same row of the branch roads alternate from the straight pipe rows in one row to the other straight pipe rows through the crossing elbows in sequence. The same row of U-shaped pipe sections of the first heat exchange branch 101 first cross from the straight pipe row 25 to the same row of U-shaped pipe sections on the straight pipe row 26 through the large elbow 221, and then return to the straight pipe row through the small elbow 222 The U-shaped pipe section of the same row of 25 is then bridged to the straight pipe row 26 through the large elbow 221, and then returns to the straight pipe row 25, so that the rotation is changed. When it reaches the bottom (on the straight tube row 26), it is connected to the straight tube row 27 through a guide pipe (not shown), and the turns are alternated between the straight tube row 27 and the straight tube row 28, and then the same The way leaves from the top of the straight tube row 27. Similarly, the second heat exchange branch 102 first comes out of the straight pipe row 26, then enters the straight pipe row 25 through a small elbow (see the elbow small 222 indicated by the dotted line), and then passes through the large elbow (see the large The elbow 221) returns to the straight pipe row 26. Finally it leaves on top of the straight tube row 28. In this way, the pipes of the heat exchanger are staggered, and the heat exchange through the fins is more thorough, thereby improving the complementary efficiency of cold and heat.
每一换热支路分为上、中、下三分支并联排列。L1表示四个换热支路的上分支部分，L2表示四个换热支路的中分支，L3表示四个换热支路的下分支，三组分支并联，使换热器整体温度分布更均匀。Each heat exchange branch is divided into three branches arranged in parallel, including upper, middle and lower branches. L1 represents the upper branch of the four heat exchange branches, L2 represents the middle branch of the four heat exchange branches, L3 represents the lower branch of the four heat exchange branches, and the three sets of branches are connected in parallel to make the overall temperature distribution of the heat exchanger more Even.
在上、中、下三分支的每一分支中，作为一种走管方式的改进，第一换热支路101、第二换热支路102均以并排两路的排列方式分布，即在每一分支中，第一换热支路101以两路管道从顶部进入、从分支的底部离开。从而在整个换热器中以六个支路分布，同理，第二换热支路102也是以六个支路分布在上、中、下三分支中。In each of the three branches of the upper, middle, and lower branches, as an improvement in the way of walking, the first heat exchange branch 101 and the second heat exchange branch 102 are distributed side by side in two ways, that is, in In each branch, the first heat exchange branch 101 enters from the top with two pipes and leaves from the bottom of the branch. Therefore, six branches are distributed in the entire heat exchanger. Similarly, the second heat exchange branch 102 is also distributed in the upper, middle, and lower branches with six branches.
更作为一种改进，第一换热支路与第二换热支路互为逆行，即第一换热支路的制冷剂从换热器分支的顶部进入换热器，而第二换热支路的制冷剂则从换热器分支的底部进入换热器。As an improvement, the first heat exchange branch and the second heat exchange branch are reversed from each other, that is, the refrigerant of the first heat exchange branch enters the heat exchanger from the top of the heat exchanger branch, and the second heat exchange The refrigerant of the branch circuit enters the heat exchanger from the bottom of the heat exchanger branch.
由于换热器采用了双排三进三出结构，因此，每一换热支路的三分支通过分液器、集液器连接，而且，由第一换热支路的三分支全部进口连接第一分液器、全部出口连接第一集液器；第二换热支路的三分支全部进口连接第二分液器、出口连接第二集液器。Because the heat exchanger uses a double-row, three-in, three-out structure, the three branches of each heat-exchange branch are connected through a liquid separator and a collector, and all the three branches of the first heat-exchange branch are connected by the inlets. The first liquid separator and all the outlets are connected to the first liquid collector; all three branches of the second heat exchange branch are connected to the second liquid separator and the outlets are connected to the second liquid collector.
第一分液器与第一集液器连接在第一制冷回路中，第二分液器与第二集液器连接在第二制冷回路中。四个换热支路分属两个独立的制冷回路。如图1所示，第一制冷回路包括第一压缩机1、第一四通电磁阀2、蒸发冷凝器10、第一节流元件3、蒸发器4、第一储液器(图未示)。第二制冷回路包括第二压缩机11、第二四通电磁阀12、壳管换热器14、第二节流元件13、蒸发冷凝器10、第二储液器(图未示)。The first liquid separator and the first liquid collector are connected in a first refrigeration circuit, and the second liquid separator and the second liquid collector are connected in a second refrigeration circuit. The four heat exchange branches belong to two independent refrigeration circuits. As shown in FIG. 1, the first refrigeration circuit includes a first compressor 1, a first four-way solenoid valve 2, an evaporation condenser 10, a first throttle element 3, an evaporator 4, and a first accumulator (not shown). ). The second refrigeration circuit includes a second compressor 11, a second four-way solenoid valve 12, a shell and tube heat exchanger 14, a second throttling element 13, an evaporation condenser 10, and a second reservoir (not shown).
如图1所示，工作过程中，需要冷气同时制热水时，分解为①空调制冷和②制热水，两个过程同时进行：①第一压缩机1→高压气管→第一四通电磁阀2：a端连通b端→蒸发冷凝器10的F1支路→室内机电子膨胀阀(第一节流元件3)→液体管→蒸发器4(空调室内机)→第一四通电磁阀2：c端连通d端→低压气管→第一储液器→第一压缩机1。As shown in Figure 1, during the work process, when cold air is required to make hot water at the same time, it is decomposed into ① air conditioning and cooling and ② hot water production. The two processes are performed simultaneously: ① the first compressor 1 → the high-pressure air pipe → the first four-way electromagnetic Valve 2: end a to end b → F1 branch of evaporation condenser 10 → electronic expansion valve for indoor unit (first throttle element 3) → liquid pipe → evaporator 4 (air conditioner indoor unit) → first four-way solenoid valve 2: c-end communicates with d-end → low-pressure air pipe → first reservoir → first compressor 1.
②第二压缩机11→高压气管→第二四通电磁阀12：a1端连通b1端→壳管换热器14的制冷剂管道→第二节流元件13→液体管→蒸发冷凝器10的F2支路→第二四通电磁阀12：c1端连通d1端→低压气管→气液分离器(或第二储液器)→第二压缩机11。② Second compressor 11 → high pressure gas pipe → second four-way solenoid valve 12: a1 end communicates with b1 end → refrigerant pipe of shell and tube heat exchanger 14 → second throttle element 13 → liquid pipe → evaporative condenser 10 F2 branch → second four-way solenoid valve 12: c1 end communicates with d1 end → low pressure gas pipe → gas-liquid separator (or second liquid reservoir) → second compressor 11.
现有的三联供冷热水热泵机***中，是以一个压缩机驱动***制冷剂循环，***中配置热水换热器、蒸发器、冷水换热器，当单制热水或单冷热水时，冷水换热器或热水换热器不作冷凝***容易不平衡状态，导致***不稳定的问题。本发明按空调与热水机两个***相对 独立又互相牵扯辅助的思路，将空调的冷凝器与热水机的蒸发器合二为一，并分属于两个独立的制冷***，相当于将两个独立的制冷***的蒸发器与冷凝器结合在一起，使整体***更优化。In the existing triple-supply hot and cold water heat pump system, a compressor is used to drive the refrigerant cycle of the system. The system is equipped with a hot water heat exchanger, an evaporator, and a cold water heat exchanger. When water is used, the cold water heat exchanger or hot water heat exchanger is not used as a condensation system, which is prone to unbalanced conditions, leading to the problem of system instability. According to the idea that the two systems of the air conditioner and the hot water machine are relatively independent and involve mutual assistance, the invention combines the condenser of the air conditioner and the evaporator of the hot water machine into one, and belongs to two independent refrigeration systems, which is equivalent to combining The combination of two independent refrigeration system evaporators and condensers makes the overall system more optimized.
而且，换热器规格为4排直列、叉排、25孔距，利用整体翅片桥接两套管路，并且通过设计小U弯及其连接方式，使这种换热器的管道交错，提高冷热互补效率。为了保证制冷剂的均匀分布，换热器设计成双三进三出结构，整体性能达到最优。Moreover, the specifications of the heat exchanger are 4 in-line, fork row, and 25-hole pitch. The integral fins are used to bridge the two casing paths. By designing small U-bends and their connection methods, the pipes of this heat exchanger are staggered and improved. Cold and hot complementary efficiency. In order to ensure the uniform distribution of the refrigerant, the heat exchanger is designed into a double-three-in, three-out structure, and the overall performance is optimized.

Claims (5)

  1. 一种冷热互补变功能高效蒸发冷凝器，包括翅片、穿插在翅片中间的直管，直管的两端通过弯头连接以形成S形的制冷剂走向线路，其特征在于：包括2N排并排的直管排，N为自然数，直管排包括两换热支路，每一换热支路的直管在换热器一侧通过弯头按排伏接、在换热器另一侧交叉跨接，伏接侧形成多个同排U形管段，每一换热支路的同排U形管段按先后顺序相错轮流地从一排的直管排通过跨接的弯头进入另一排直管排。A high-efficiency evaporative condenser with complementary functions of cold and heat, comprising fins and straight tubes interspersed between the fins. The two ends of the straight tubes are connected through elbows to form an S-shaped refrigerant running line, which is characterized in that it includes 2N Side-by-side straight tube rows, N is a natural number. The straight tube row includes two heat exchange branches. The straight tubes of each heat exchange branch are connected by a bend at the side of the heat exchanger through elbows, and the other side of the heat exchanger. Side cross-over bridging, a plurality of in-row U-shaped pipe sections are formed on the volt-joining side, and the same-row U-shaped pipe sections of each heat exchange branch are sequentially and alternately entered from a row of straight pipe rows through the crossing elbow in order. Another row of straight tubes.
  2. 根据权利要求1所述冷热互补变功能高效蒸发冷凝器，其特征在于：每一换热支路分为上、中、下三分支并联排列，第一换热支路三分支的进口侧连接第一分液器、出口侧连接第一集液器；第二换热支路三分支的进口侧连接第二分液器、出口侧连接第二集液器。The high-efficiency evaporative condenser with complementary cold and heat variable function according to claim 1, characterized in that each heat exchange branch is divided into three branches arranged in parallel, and the inlet sides of the three branches of the first heat exchange branch are connected. The first liquid separator and the outlet side are connected to the first liquid collector; the inlet side of the three branches of the second heat exchange branch is connected to the second liquid separator and the outlet side is connected to the second liquid collector.
  3. 根据权利要求2所述冷热互补变功能高效蒸发冷凝器，其特征在于：第一分液器与第一集液器连接在包括第一压缩机和蒸发器的制冷回路中，第二分液器与第二集液器连接在包括第二压缩机和壳管换热器的制冷回路中。The high-efficiency evaporative condenser with complementary functions of cold and heat according to claim 2, characterized in that the first liquid separator and the first liquid collector are connected in a refrigeration circuit including a first compressor and an evaporator, and the second liquid separator And the second liquid collector are connected in a refrigeration circuit including a second compressor and a shell and tube heat exchanger.
  4. 根据权利要求3所述冷热互补变功能高效蒸发冷凝器，其特征在于：N的数值选取为2或3。The high-efficiency evaporative condenser with complementary functions of cold and heat according to claim 3, wherein the value of N is selected to be 2 or 3.
  5. 根据权利要求1所述冷热互补变功能高效蒸发冷凝器，其特征在于：每一换热支路分为上、下两分支并联排列，第一换热支路两分支的进口侧连接第一分液器、出口侧连接第一集液器；第二换热支路两分支的进口侧连接第二分液器、出口侧连接第二集液器。The high-efficiency evaporative condenser with complementary cold and heat variable function according to claim 1, characterized in that each heat exchange branch is divided into two branches arranged in parallel, and the inlet sides of the two branches of the first heat exchange branch are connected to the first The liquid separator and the outlet side are connected to the first liquid collector; the inlet sides of the two branches of the second heat exchange branch are connected to the second liquid separator and the outlet side is connected to the second liquid collector.
PCT/CN2018/101507 2018-07-26 2018-08-21 High-efficiency evaporative condenser with hot and cold complementary variable function WO2020019386A1 (en)

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