WO2009109112A1 - A parallel-flow heat exchanger for an air-conditioner - Google Patents

A parallel-flow heat exchanger for an air-conditioner Download PDF

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Publication number
WO2009109112A1
WO2009109112A1 PCT/CN2009/070190 CN2009070190W WO2009109112A1 WO 2009109112 A1 WO2009109112 A1 WO 2009109112A1 CN 2009070190 W CN2009070190 W CN 2009070190W WO 2009109112 A1 WO2009109112 A1 WO 2009109112A1
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WO
WIPO (PCT)
Prior art keywords
arc
parallel
heat exchanger
heat exchange
cross
Prior art date
Application number
PCT/CN2009/070190
Other languages
French (fr)
Chinese (zh)
Inventor
孙海潮
Original Assignee
Sun Haichao
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sun Haichao filed Critical Sun Haichao
Publication of WO2009109112A1 publication Critical patent/WO2009109112A1/en

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Classifications

    • 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
    • F25B39/00—Evaporators; Condensers
    • 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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0471—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits having a non-circular cross-section
    • 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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0475—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits having a single U-bend
    • F28D1/0476—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits having a single U-bend the conduits having a non-circular cross-section
    • 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
    • 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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D2001/0253—Particular components
    • F28D2001/026—Cores
    • F28D2001/0273—Cores having special shape, e.g. curved, annular

Definitions

  • the present invention relates to a parallel flow heat exchanger dedicated to an air conditioner, and more particularly to a parallel flow heat exchanger dedicated to an air conditioner manifold. Background technique
  • the air conditioner heat exchangers currently known are generally classified into three types, a tube type, a tube type and a parallel flow type, depending on the tube shape and structure of the heat exchange tubes used, and the basic technical feature is that refrigeration requiring heat exchange is required.
  • the agent is introduced into the pipe which is formed into a certain shape, and the heat exchange is performed by heat exchange with the air outside the pipe while flowing, and in order to achieve the required heat exchange capacity, the heat-dissipating aluminum is also required to be welded outside the pipe.
  • the piece is equipped with a fan to force air convection.
  • the basic technical feature of the parallel flow heat exchanger is that a plurality of heat exchange flat tubes arranged in parallel are vertically connected between a pair of parallel arranged collecting tubes, and corrugated aluminum heat radiating fins are sandwiched between the heat exchange flat tubes.
  • the sheet is provided with a fan for forced air convection on one side of the heat exchange flat tube.
  • the refrigerant flows in parallel and orderly between the flat tubes under the barrier of the spacers in the header, and the heat exchange is achieved by heat exchange with the air outside the flat tubes while flowing.
  • the technical feature of the header is only available in the parallel flow heat exchanger. Its function is to collect the refrigerant into and out of the heat exchange flat tube, usually used in pairs.
  • the function of the heat exchange flat tube is to circulate.
  • the refrigerant exchanges heat with the outside air, and is usually composed of dozens of parallel arranged. Since the function of the header and the heat exchange flat tube in the parallel flow heat exchanger is different, the technical structure is inevitably substantially different. In terms of the quantity used, only one pair of parallel flow heat exchangers is required.
  • the collecting tube, and the number of heat exchange flat tubes is more than ten times that of the collecting tube. In terms of external structure, the cross-sectional area of the collecting tube is more than ten times larger than the cross-sectional area of the heat-exchange flat tube.
  • the heat exchange flat tube is usually a straight strip flat tube.
  • the heat exchange flat tube is also bent into an L shape or a circular arc shape, but the current flow tube in the parallel flow heat exchanger is a straight line.
  • the cylindrical tube that is, whether the shape of the chess surface is round, elliptical or rectangular, the central connecting line of the cross section is a straight line.
  • the parallel flow heat exchanger adopts a unique structure in which the header and the collecting pipe are vertically connected with a plurality of heat exchange flat tubes arranged in parallel, which is obvious compared with the tube-and-tube type heat exchanger. With the comprehensive advantages, there is a great potential to replace the tube-and-tube heat exchangers.
  • the current collecting tubes in the parallel flow heat exchangers are all straight-column tubes, that is, the central connecting line of the cross-section of the collecting tube is a straight line, which determines the parallel flow heat exchange.
  • the shape of the device can only be flat and straight.
  • the parallel flow heat exchanger can only be enlarged on the plane.
  • some heat exchanger applications have limited space and stricter restrictions on the heat exchanger plane. Planar straight-plate parallel flow heat exchangers designed with limited space are not able to meet the required heat exchange capacity.
  • the air conditioner heat exchanger needs to use forced air convection by the fan.
  • the inlet and outlet air outlets have a special structure, combined with a flat straight parallel flow heat exchanger. Forced air convection is less effective and does not achieve the desired heat exchange.
  • the prior art has a design in which a row of heat exchange flat tubes arranged in parallel in a parallel flow heat exchanger is uniformly curved, so that the parallel flow heat exchanger is formed into a curved shape to meet the use requirements of a specific occasion, but the heat exchange flat tube is used.
  • the functional role determines the shape of the cross-section as a super-flat rectangle, which also determines its use in parallel flow heat exchangers, usually in the order of dozens or more. If a curved shape is formed, it will cause refrigerant in it. The flow resistance is increased, causing the pressure drop in the circulation process to drop too much, the manufacturing technology is difficult, and the production cost is high.
  • the cross-flow fan is usually arranged horizontally, that is, the axis of the rotating shaft of the cross-flow fan impeller
  • the line is substantially parallel to the horizontal line.
  • the object of the present invention is to provide a parallel flow heat exchanger dedicated to an air conditioner in view of the above problems, and in such a parallel flow heat exchanger, it is sufficient in those places where the heat exchanger is limited in space. Utilizing the size and shape of the space and the special structure of the fan inlet and outlet vents, a parallel flow heat exchanger with sufficient heat exchange capacity and meeting the space size and shape is designed. When the refrigerant flows through the heat exchanger, it exchanges heat with the heat exchange flat tube having a large area of the heat radiating surface of the heat exchanger to achieve the desired heat exchange.
  • the heat exchanger of the present invention can be applied to heat exchange applications such as home air conditioners and automobile air conditioners.
  • a parallel flow heat exchanger dedicated to an air conditioner includes a row of heat exchange flat tubes arranged in parallel, and two ports of the heat exchange flat tubes arranged in parallel are vertically connected to a pair of headers, wherein: the collecting tubes are In the arc type, the connecting line of the center point of the cross section of the arc type collecting pipe is an arc, and the projection of the connecting line of the center point of the cross section of the pair of arc type collecting tubes is a parallel line structure when the line is a straight line.
  • the object of the invention can also be achieved in the following ways:
  • a parallel flow heat exchanger dedicated to an air conditioner comprising a row of heat exchange flat tubes arranged in parallel, arranged in parallel
  • the two ports of the heat exchange flat tube are vertically connected to a pair of collecting tubes, and the characteristic is: the collecting tube is an arc type, and the connecting line of the center point of the cross section of the arc type collecting tube is an arc, a pair of arc type
  • the projection of the connecting line at the center point of the cross section of the collecting tube is a parallel line structure when the line is straight, and the length of the arc of the arc is between zero and 25 times the arc height.
  • the object of the invention can also be achieved in the following ways:
  • a parallel flow heat exchanger dedicated to an air conditioner includes a row of heat exchange flat tubes arranged in parallel, and two ports of the heat exchange flat tubes arranged in parallel are vertically connected to a pair of headers, wherein: the collecting tubes are In the arc type, the connecting line of the center point of the cross section of the arc type collecting pipe is an arc, and the projection of the connecting line of the center point of the cross section of the pair of arc type collecting tubes is a parallel line structure, and the arc is The length of the string is between 1.1 times the arc height and 20 times the arc height.
  • the object of the invention can also be achieved in the following ways:
  • a parallel flow heat exchanger dedicated to an air conditioner includes a row of heat exchange flat tubes arranged in parallel, and two ports of the heat exchange flat tubes arranged in parallel are vertically connected to a pair of current collecting tubes, wherein: a pair of arc lines The projection of the connecting line at the center point of the cross section of the type of collecting tube is an intersecting structure when it is a straight line.
  • the object of the invention can also be achieved in the following ways:
  • a parallel flow heat exchanger dedicated to an air conditioner includes a row of heat exchange flat tubes arranged in parallel, and two ports of the heat exchange flat tubes arranged in parallel are vertically connected to a pair of headers, wherein: the collecting tubes are The triangular type, the connecting line of the center point of the cross section of the triangular collecting tube forms an angle, the angle is between 60 degrees and 160 degrees, and the projection of the connecting line of the center point of the cross section of the pair of triangular type collecting tubes is a straight line In a parallel line structure.
  • the object of the invention can also be achieved in the following ways:
  • a parallel flow heat exchanger dedicated to an air conditioner includes a row of heat exchange flat tubes arranged in parallel, and two ports of the heat exchange flat tubes arranged in parallel are vertically connected to a pair of headers, wherein: the collecting tubes are The triangular type, the connecting line of the center point of the cross section of the triangular collecting tube forms an angle, the angle is between 60 degrees and 160 degrees, and the projection of the connecting line of the center point of the cross section of the pair of triangular type collecting tubes is a straight line In an intersecting structure.
  • the refrigerant enters through an arc-shaped header on one side port of the heat exchange flat tubes arranged in parallel, flows through the parallel-arranged heat exchange flat tubes, and then passes through the arcs on the other side of the heat exchange flat tubes arranged in parallel
  • the air outside the heat exchange flat tube is heat exchanged under the forced convection of the fan to achieve the purpose of ideal heat exchange. Since the present invention is directed to a design of a header in a parallel flow heat exchanger, the present invention can also be used only in a heat exchanger having a parallel flow heat exchanger structure, so the arc type manifold is An essential technical feature of the invention.
  • the connecting line of the center point of the transverse section of the arc-shaped collecting pipe is an arc, which is a curved line of different arcs including a circular arc line and a combination thereof, and may also be a curved line and a straight line.
  • the technical feature is that the connecting line forming the center point of the transverse section of the arc-shaped collecting tube is a curved curve. Since the header is an arc-shaped header, it is combined with a straight-type heat exchange flat tube that does not need to be bent.
  • Parallel flow heat exchangers of many different structural shapes can be designed and manufactured to meet the requirements of various special spaces and special applications, greatly expanding the application range of parallel flow heat exchangers.
  • a parallel flow heat exchanger using an arc type manifold is an arc type parallel flow heat exchanger.
  • a pair of arc-shaped headers and straight-type heat exchange flat tubes can be combined into a plurality of arc-shaped parallel flow heat exchangers of different structural shapes, such as: a pair of arc-shaped collectors at the center point of the cross-section When the projection of the line is a straight line, it is a parallel line structure; the projection of the connecting line of the center point of the cross-section of the pair of arc-shaped collecting tubes is a coincident structure along a long line of a straight line; the center of the cross-section of a pair of arc-shaped collecting tubes When the projection of the connecting line of the point is a straight line, there is an intersecting structure, etc., and the structures of different shapes can be designed according to the opposite direction of the arc-shaped collecting tube of the pair of arcs, the phase, the opposite direction, and the like, and a plurality of different structures are designed.
  • the arc-type parallel flow heat exchanger formed by the different shapes of the arc type manifold has different heat exchange capacities, and the difference is large, and the applicable occasions are also different, many of which are different.
  • the shape of the parallel flow heat exchanger does not achieve the object of the present invention, and the arc type header is designed as
  • the projection of the connecting line at the center point of the cross-section of the arc-shaped manifold is a parallel line structure when it is a straight line", which is the most effective structure among all the structural shapes capable of achieving the object of the present invention.
  • the arc type collector is designed as
  • the projection of the connecting line at the center point of the cross-section of the arc-shaped manifold is an intersecting structure when it is a straight line
  • the invention eliminates the technical feature of welding the heat radiating fins outside the heat exchange flat tube, and thus the number of the flat tubes can be increased to expand the heat exchange capacity.
  • Combining the present invention with a straight column type header it can be designed as a parallel flow heat exchanger of the L type header.
  • a parallel flow heat exchanger using a triangular header is a triangular parallel flow heat exchanger.
  • the triangular type means that the collecting pipe forms an angle, and the connecting line between the center point connecting line of the cross section of the collecting pipe and the two end points of the connecting line is formed in a triangular shape.
  • a pair of triangular type collecting tubes and heat exchange flat tubes can be combined into a plurality of triangular parallel flow heat exchangers of different structural shapes, and the combination thereof is the same as that of the above pair of arc type collecting tubes.
  • the center point connecting line of the cross section of the header is continuously designed by the present invention to be formed into a plurality of angles, the collecting tube becomes a polygonal collecting tube.
  • the triangular parallel flow heat exchangers formed by different structural shapes have different heat exchange capacities, and the difference is large, and the applicable applications are also different.
  • the triangular current collecting tube is designed such that "the projection of the connecting line of the center point of the transverse section of the pair of triangular type collecting tubes is a parallel line structure when the straight line is straight", and all of these can achieve the object of the present invention.
  • the structure with the best effect in the structure shape, and the triangular current collector is designed as "the intersecting structure when the projection of the connecting line of the center point of the cross section of the triangular manifold is a straight line", which is a clock to a certain
  • the design of these special applications has the ability to replace other shapes and structures.
  • the arc shape the design of the triangular manifold, the arc of the arc, the angle of the angle of the triangle, depending on the structure of the fan inlet and outlet and the space allowed for the specific forced air convection in practical applications, choose one or combine them together and use them in combination with existing parallel flow heat exchangers for better heat exchange.
  • the length of the arc of the arc is between zero and 25 times the arc height" is an indispensable technical feature of the invention.
  • the length of the arc of the arc determines the length of the string.
  • the arc shape of the arc-shaped collecting pipe, the length of the string should be determined according to the structure of the fan used with it, the string can be designed very short, when the length of the string is zero, the arc-shaped collecting pipe becomes The circular manifold is used, and the fan used with it can be inserted into the side of the parallel flow heat exchanger composed of the arc type collecting tube, and is installed and arranged.
  • the strings are not too long. Otherwise, the heat exchange capacities in the respective regions of the arc-type parallel flow heat exchanger formed are largely different, resulting in insufficient overall heat exchange capacity, and the object of the present invention cannot be achieved.
  • the angle formed by the connecting line at the center point of the cross section of the header is between 60 degrees and 160 degrees
  • the angle between the angles is too small or too large, and the effect of forced air convection by the fan will be very poor.
  • the heat exchange capacity in each area of the triangular parallel flow heat exchanger formed is quite different, and it is impossible to achieve the required heat. The exchangeability, and thus the object of the invention, is not achieved.
  • the preferred angle values recommended by the present invention are 90 degrees, 120 degrees, and 150 degrees.
  • the cross-sections of the arc-shaped header and the triangular-shaped header may have an elliptical shape, a rectangular shape, a circular shape, or the like, regardless of the type, because the cross-sectional area of the cross-section is larger than that of the cross-section of the heat-exchange flat tube.
  • the area is more than ten times larger, and the number of collectors used in a parallel flow heat exchanger is only two, only one tenth or even one tenth of the number of heat exchange flat tubes, so it will be set.
  • the flow tube is designed in an arc shape, which has almost no influence on the flow resistance of the refrigerant, and the parallel flow heat exchanger formed by the combination of the arc type manifold and the straight type heat exchange flat tube can make the heat exchange flat tube Arranged in parallel in the horizontal direction, the flow of the refrigerant in the flat tube is maintained horizontally, and the heat exchange flat tube of the parallel flow heat exchanger fabricated by the method of bending the heat exchange flat tube can only be used with the rotating shaft of the cross flow fan impeller.
  • the axial lines are arranged in parallel in the vertical direction, and the refrigerant must continuously rise and fall during the flow of the flat tubes to reduce the heat exchange capability.
  • the present invention has the following main features:
  • the present invention can be used for the inlet and outlet of the fan without changing the size of the existing space, especially for the inlet and outlet of the cross flow fan.
  • the design features a parallel flow heat exchanger with a higher heat exchange capacity and a higher heat exchange efficiency.
  • each heat exchange flat tube arranged in parallel can be arranged in parallel with the axial line of the rotating shaft of the cross flow fan impeller.
  • Figure 1 is a schematic view showing the structure of an arc type parallel flow heat exchanger according to the present invention.
  • Figure 2 is a side elevational view of Figure 1.
  • Fig. 3 is a schematic view showing the structure of a triangular parallel flow heat exchanger according to the present invention.
  • Figure 4 is a side elevational view of Figure 3. detailed description
  • 1 is a refrigerant inlet pipe
  • 2 is an arc-shaped current collector orthographic projection center line
  • 3 is an arc-shaped current collecting pipe
  • 4 is a heat exchange flat pipe
  • 5 is an arc-shaped current collecting pipe orthographic projection center line.
  • 6 is an arc type manifold
  • 7 is a connecting line of the center point of the arc type collector side projection
  • 8 is a string
  • 9 is an arc height
  • 10 is a spacer
  • 11 is a refrigerant outlet pipe
  • 12 is Angle.
  • This embodiment is an embodiment of the arc type parallel flow heat exchanger of the present invention as an air conditioner condenser application: see Fig. 1 and Fig. 2.
  • Figure 2 clearly shows the construction of the arc-type header.
  • 3 and 6 are a pair of arc-shaped headers, 2 is the orthographic centerline of the arc-shaped header 3, and 5 is the orthographic centerline of the arc-shaped header 6.
  • 5 in the figure and 5 in the figure are a pair of parallel lines, which is a specific structure of a pair of arc-shaped headers 3 and 6, and the practical application can also be arranged as an intersecting structure.
  • a pair of parallel-arranged heat exchange flat tubes 4 are vertically connected between 3 and 6, in which ⁇ is a connecting line of the arc-shaped current collecting tube 3, 6 side projection center point, that is, an arc-shaped manifold cross section
  • the connecting line of the center point is a section of an arc, and the technical significance thereof is that the connecting line forming the center point of the transverse section of the arc-shaped collecting tube is a curved curve.
  • the collecting pipe of this embodiment is a rectangular parallelepiped collecting pipe, that is, the cross-section of the collecting pipes 3, 6 is rectangular.
  • the straight line distance between the two ends of the connecting line ⁇ of the side projection center point of the arc-shaped current collecting tubes 3, 6 is the chord line 8, and the midpoint of the connecting line 7 of the arc-shaped collecting tube 3, 6 side projection center point is
  • the midpoint distance of the string 8 is an arc height of 9, because the connecting line of the center point of the cross section of the arc type collecting tube is a curved curve, and the curve is not necessarily symmetrical as the curve combination is different.
  • the midpoint of the connecting line 7 of the arc-shaped header 3, 6 side projection center point should be one-half of the connecting line 7 of the arc-shaped header 3, 6-side projection center point.
  • the high temperature, high pressure refrigerant gas from the compressor enters the arc type header 3 through the refrigerant inlet pipe 1 on the arc type header 3, and under the barrier of the separator 10, flows the heat exchange flat tube 4, and flows Go to the arc-shaped header 6 on the other side of the flat tube, and then, under the action of the spacer 10, return to the arc-shaped header 3 flowing into the other port through the lower heat exchange flat tube. Then returning to the arc-shaped header 6 flowing into the other port, the refrigerant exchanges heat with the air outside the flat tube by repeatedly flowing back and forth in the flat tube, continuously releasing heat and finally being condensed into a liquid until It flows out through the refrigerant outlet pipe 11 on the header 6.
  • a fan When used as a heat exchanger, a fan is also required to perform forced air convection heat exchange on the condenser.
  • the fan is disposed inside the curved shape of the present invention, surrounded by the present invention, and the arc of the arc type header 3, 6
  • the shape should be set according to the condition of the fan inlet and outlet.
  • a heat exchange flat tube of each part of the parallel flow heat exchanger formed by the arcuate manifold is used to obtain a relatively uniform air volume.
  • the spacers 10 in the arc-type headers 3, 6 are provided for controlling the amount of the heat exchange flat tubes that can be supplied into the refrigerant each time, that is, the flow rate of the refrigerant, and how many spacers and each piece are required to be implemented.
  • This embodiment is an embodiment of the arc type parallel flow heat exchanger as an air conditioner condenser application, and is not substantially different from the application as an air conditioner evaporator.
  • the implementation of the triangular parallel flow heat exchanger and the arc type parallel flow heat exchanger There is no essential difference in the implementation of this, and reference can be made to the implementation.

Abstract

A parallel-flow heat exchanger for an air-conditioner, comprises a row of heat exchanging flat tubes (4) arranged in parallel. Two ends of the heat exchanging flat tubes (4) are vertically connected with a pair of collecting-heat pipes (3,6). The collecting-heat pipes (3,6) are arc-shaped or triangular. The connecting lines (7) at the central points of the cross sections of the arc-shaped collecting-heat pipes are arc-shaped lines. The connecting lines at the central points of the cross sections of the triangular collecting-heat pipes form an angle (12). The projections of said connecting lines are parallel lines structure or intersecting lines structure.

Description

说明书  Instruction manual
一种专用于空调机的平行流热交换器 技术领域  Parallel flow heat exchanger dedicated to air conditioner
本发明涉及一种专用于空调机的平行流热交换器，特别是仅涉及一种专用于空调机集 流管的平行流热交换器。 背景技术  The present invention relates to a parallel flow heat exchanger dedicated to an air conditioner, and more particularly to a parallel flow heat exchanger dedicated to an air conditioner manifold. Background technique
目前已知的空调机热交换器根据所使用的热交换管的管形及结构通常分为管片式,管 带式和平行流式这三种，其基本技术特征是将需要热交换的制冷剂引入到制作成一定形状 的管道内流动，在流动的同时,通过与管外的空气进行热交换达到热交换的目的，为了达到 所需要的热交换能力，还需在管外焊接套装散热铝片， 并设有风机强制空气对流。 其中平 行流式热交换器的基本技术特征为：在一对平行布置的集流管之间垂直连接若干条平行排 列的热交换扁管，热交换扁管之间夹焊波纹形铝质散热翅片，热交换扁管一侧设有强制空 气对流的风机。制冷剂在集流管中隔片的阻隔下， 平行有序地在扁管间流动， 在流动的同 时,通过与扁管外的空气进行热交换达到热交换的目的。 集流管这一技术特征， 只有在平 行流热交换器中才有， 其作用是将制冷剂汇集流入， 流出热交换扁管， 通常成对使用， 热 交换扁管的作用是将流通时的制冷剂与管外空气进行热交换，通常由几十条成平行排列组 成使用。由于集流管和热交换扁管在平行流热交换器中的功能作用不同，其技术结构也就 必然存在实质上的差异， 就其使用数量上来说， 一个平行流热交换器仅需一对集流管， 而 热交换扁管的使用数量则是集流管的数十倍以上，外形结构上来说，集流管的横切面积要 比热交换扁管的横切面积大数十倍以上，热交换扁管通常为直条形扁管，近年也有将热交 换扁管弯曲成 L形或圆弧形的设计， 但现有的平行流热交换器中的集流管则均为直条柱 型管， 即无论其棋切面的形状为圆型， 椭圆形， 还是长方形， 其横切面的中心连接线均为 一条直线。平行流热交换器由于技术结构上采用了集流管及集流管与若干条平行排列的热 交换扁管垂直连接的特有结构， 较管片式和管带式热交换器来说具有明显的综合优势,大 有替代管片式和管带式热交换器之势。但现有的平行流热交换器技术结构上仍存在一些缺 点,严重影响了其更大范围的推广应用。 其中最显著的缺点是:现有的平行流热交换器中的 集流管均为直条柱型管， 即集流管横切面的中心连接线为一条直线，这就决定了平行流热 交换器的形状只能为平面直板型。要提高热交换能力，只能将平行流热交换器在平面上扩 大。 但一些热交换器应用场合的空间十分有限，对热交换器平面上的扩大限制较严， 按这 些有限的空间大小设计出来的平面直板型平行流热交换器,无法满足所需要的热交换能力, 只有扩大应用空间,才能运用在这一类热交换器应用场合上,但这会增加生产成本,失去了 平行流热交换器结构紧凑成本低的优势,且大都情况下这种应用场合是无法根据要求扩大 的， 这就限制了平行流热交换器在这些特殊场合中的替代使用。再者， 空调机热交换器需 采用风机强制空气对流， 对于某些风机来说， 如贯流风机， 离心风机等， 其进出风口结构 特殊，与平面直板型平行流热交换器组合在一起的强制空气对流的效果较差，达不到所需 要的热交换的目的。现有技术有将平行流热交换器中的一排平行排列的热交换扁管统一弯 曲的设计，从而达到平行流热交换器形成弯曲形状以满足特定场合的使用要求，但热交换 扁管的功能作用决定了其横切面的形状为超扁长方形，也决定了它在平行流热交换器中的 使用数量较大， 通常为几十条以上， 如果形成弯曲形状， 则会造成制冷剂在其中的流动阻 力加大， 造成流通过程中的压降下降过大， 制造技术上难度较大， 生产成本较高， 再则， 贯流风机通常为水平布置， 即贯流风机叶轮转动轴的轴心线与水平线大致平行，如果将这 样的平行流热交换器使用在贯流风机强制对流的场合，热交换扁管只能与贯流风机叶轮转 动轴的轴心线呈垂直布置的结构， 制冷剂在热交换扁管中的流动， 需要不断地经过上升， 下降流程， 沿程压力下降更大， 制冷剂的工况变化也较大， 这些因素都会造成热交换能力 的下降， 严重时甚至达不到热交换的目的。 发明内容 The air conditioner heat exchangers currently known are generally classified into three types, a tube type, a tube type and a parallel flow type, depending on the tube shape and structure of the heat exchange tubes used, and the basic technical feature is that refrigeration requiring heat exchange is required. The agent is introduced into the pipe which is formed into a certain shape, and the heat exchange is performed by heat exchange with the air outside the pipe while flowing, and in order to achieve the required heat exchange capacity, the heat-dissipating aluminum is also required to be welded outside the pipe. The piece is equipped with a fan to force air convection. The basic technical feature of the parallel flow heat exchanger is that a plurality of heat exchange flat tubes arranged in parallel are vertically connected between a pair of parallel arranged collecting tubes, and corrugated aluminum heat radiating fins are sandwiched between the heat exchange flat tubes. The sheet is provided with a fan for forced air convection on one side of the heat exchange flat tube. The refrigerant flows in parallel and orderly between the flat tubes under the barrier of the spacers in the header, and the heat exchange is achieved by heat exchange with the air outside the flat tubes while flowing. The technical feature of the header is only available in the parallel flow heat exchanger. Its function is to collect the refrigerant into and out of the heat exchange flat tube, usually used in pairs. The function of the heat exchange flat tube is to circulate. The refrigerant exchanges heat with the outside air, and is usually composed of dozens of parallel arranged. Since the function of the header and the heat exchange flat tube in the parallel flow heat exchanger is different, the technical structure is inevitably substantially different. In terms of the quantity used, only one pair of parallel flow heat exchangers is required. The collecting tube, and the number of heat exchange flat tubes is more than ten times that of the collecting tube. In terms of external structure, the cross-sectional area of the collecting tube is more than ten times larger than the cross-sectional area of the heat-exchange flat tube. The heat exchange flat tube is usually a straight strip flat tube. In recent years, the heat exchange flat tube is also bent into an L shape or a circular arc shape, but the current flow tube in the parallel flow heat exchanger is a straight line. The cylindrical tube, that is, whether the shape of the chess surface is round, elliptical or rectangular, the central connecting line of the cross section is a straight line. Because of the technical structure, the parallel flow heat exchanger adopts a unique structure in which the header and the collecting pipe are vertically connected with a plurality of heat exchange flat tubes arranged in parallel, which is obvious compared with the tube-and-tube type heat exchanger. With the comprehensive advantages, there is a great potential to replace the tube-and-tube heat exchangers. However, there are still some shortcomings in the technical structure of the existing parallel flow heat exchanger, which seriously affects its wider application. The most significant disadvantage is that the current collecting tubes in the parallel flow heat exchangers are all straight-column tubes, that is, the central connecting line of the cross-section of the collecting tube is a straight line, which determines the parallel flow heat exchange. The shape of the device can only be flat and straight. To increase the heat exchange capacity, the parallel flow heat exchanger can only be enlarged on the plane. However, some heat exchanger applications have limited space and stricter restrictions on the heat exchanger plane. Planar straight-plate parallel flow heat exchangers designed with limited space are not able to meet the required heat exchange capacity. Only by expanding the application space can they be used in this type of heat exchanger application, but this will increase production costs. The parallel flow heat exchanger has lost the advantage of compact and low cost, and most of the time, this application cannot be expanded according to requirements, which limits the alternative use of the parallel flow heat exchanger in these special occasions. Furthermore, the air conditioner heat exchanger needs to use forced air convection by the fan. For some fans, such as cross flow fan, centrifugal fan, etc., the inlet and outlet air outlets have a special structure, combined with a flat straight parallel flow heat exchanger. Forced air convection is less effective and does not achieve the desired heat exchange. The prior art has a design in which a row of heat exchange flat tubes arranged in parallel in a parallel flow heat exchanger is uniformly curved, so that the parallel flow heat exchanger is formed into a curved shape to meet the use requirements of a specific occasion, but the heat exchange flat tube is used. The functional role determines the shape of the cross-section as a super-flat rectangle, which also determines its use in parallel flow heat exchangers, usually in the order of dozens or more. If a curved shape is formed, it will cause refrigerant in it. The flow resistance is increased, causing the pressure drop in the circulation process to drop too much, the manufacturing technology is difficult, and the production cost is high. Moreover, the cross-flow fan is usually arranged horizontally, that is, the axis of the rotating shaft of the cross-flow fan impeller The line is substantially parallel to the horizontal line. If such a parallel flow heat exchanger is used in the forced convection of the cross-flow fan, the heat exchange flat tube can only be arranged vertically with the axis line of the rotating shaft of the cross-flow fan impeller, the refrigerant The flow in the heat exchange flat tube needs to continuously go through the ascending and descending processes, the pressure along the process drops more, and the refrigerant's working conditions change more. These factors will cause a decline in the heat exchange capacity, serious and even reach the purpose of heat exchange. Summary of the invention
本发明的目的就是针对上述问题提供一种专用于空调机的平行流热交换器,采用了这 样的平行流热交换器，就可在那些对热交换器设置空间限制较大的场合中，充分利用空间 的大小形状和针对采用的风机进出风口的特殊结构，设计制作出足够大的热交换能力的且 满足空间大小形状设置的平行流热交换器。当制冷剂流经热交换器时，通过与热交换器的 具有大面积的外表散热面的热交换扁管与空气进行热交换，达到理想的热交换的目的。本 发明的热交换器可应用在家用空调,汽车空调等热交换场合上。  SUMMARY OF THE INVENTION The object of the present invention is to provide a parallel flow heat exchanger dedicated to an air conditioner in view of the above problems, and in such a parallel flow heat exchanger, it is sufficient in those places where the heat exchanger is limited in space. Utilizing the size and shape of the space and the special structure of the fan inlet and outlet vents, a parallel flow heat exchanger with sufficient heat exchange capacity and meeting the space size and shape is designed. When the refrigerant flows through the heat exchanger, it exchanges heat with the heat exchange flat tube having a large area of the heat radiating surface of the heat exchanger to achieve the desired heat exchange. The heat exchanger of the present invention can be applied to heat exchange applications such as home air conditioners and automobile air conditioners.
本发明的目的是通过以下方式来实现的：  The object of the invention is achieved in the following ways:
一种专用于空调机的平行流热交换器,包括一排平行排列的热交换扁管， 平行排列的 热交换扁管的两端口垂直连接一对集流管， 其特征是： 集流管为弧线型， 弧线型集流管横 切面中心点的连接线为一段弧线，一对弧线型集流管横切面中心点的连接线的投影为直线 时呈平行线结构。  A parallel flow heat exchanger dedicated to an air conditioner includes a row of heat exchange flat tubes arranged in parallel, and two ports of the heat exchange flat tubes arranged in parallel are vertically connected to a pair of headers, wherein: the collecting tubes are In the arc type, the connecting line of the center point of the cross section of the arc type collecting pipe is an arc, and the projection of the connecting line of the center point of the cross section of the pair of arc type collecting tubes is a parallel line structure when the line is a straight line.
本发明的目的还可以通过以下方式来实现：  The object of the invention can also be achieved in the following ways:
一种专用于空调机的平行流热交换器,包括一排平行排列的热交换扁管， 平行排列的 热交换扁管的两端口垂直连接一对集流管， 其特征是： 集流管为弧线型， 弧线型集流管横 切面中心点的连接线为一段弧线，一对弧线型集流管横切面中心点的连接线的投影为直线 时呈平行线结构， 弧线的弦线长度为零到 25倍弧高之间。 A parallel flow heat exchanger dedicated to an air conditioner, comprising a row of heat exchange flat tubes arranged in parallel, arranged in parallel The two ports of the heat exchange flat tube are vertically connected to a pair of collecting tubes, and the characteristic is: the collecting tube is an arc type, and the connecting line of the center point of the cross section of the arc type collecting tube is an arc, a pair of arc type The projection of the connecting line at the center point of the cross section of the collecting tube is a parallel line structure when the line is straight, and the length of the arc of the arc is between zero and 25 times the arc height.
本发明的目的还可以通过以下方式来实现：  The object of the invention can also be achieved in the following ways:
一种专用于空调机的平行流热交换器,包括一排平行排列的热交换扁管， 平行排列的 热交换扁管的两端口垂直连接一对集流管， 其特征是： 集流管为弧线型， 弧线型集流管横 切面中心点的连接线为一段弧线，一对弧线型集流管横切面中心点的连接线的投影为直线 时呈平行线结构， 弧线的弦线长度为 1.1倍弧高到 20倍弧高之间。  A parallel flow heat exchanger dedicated to an air conditioner includes a row of heat exchange flat tubes arranged in parallel, and two ports of the heat exchange flat tubes arranged in parallel are vertically connected to a pair of headers, wherein: the collecting tubes are In the arc type, the connecting line of the center point of the cross section of the arc type collecting pipe is an arc, and the projection of the connecting line of the center point of the cross section of the pair of arc type collecting tubes is a parallel line structure, and the arc is The length of the string is between 1.1 times the arc height and 20 times the arc height.
本发明的目的还可以通过以下方式来实现：  The object of the invention can also be achieved in the following ways:
一种专用于空调机的平行流热交换器,包括一排平行排列的热交换扁管， 平行排列的 热交换扁管的两端口垂直连接一对集流管，其特征是：一对弧线型集流管横切面中心点的 连接线的投影为直线时呈相交结构。  A parallel flow heat exchanger dedicated to an air conditioner includes a row of heat exchange flat tubes arranged in parallel, and two ports of the heat exchange flat tubes arranged in parallel are vertically connected to a pair of current collecting tubes, wherein: a pair of arc lines The projection of the connecting line at the center point of the cross section of the type of collecting tube is an intersecting structure when it is a straight line.
本发明的目的还可以通过以下方式来实现：  The object of the invention can also be achieved in the following ways:
一种专用于空调机的平行流热交换器,包括一排平行排列的热交换扁管， 平行排列的 热交换扁管的两端口垂直连接一对集流管， 其特征是： 集流管为三角型， 三角型集流管横 切面中心点的连接线形成一夹角， 夹角为 60度到 160度之间， 一对三角型集流管横切面 中心点的连接线的投影为直线时呈平行线结构。  A parallel flow heat exchanger dedicated to an air conditioner includes a row of heat exchange flat tubes arranged in parallel, and two ports of the heat exchange flat tubes arranged in parallel are vertically connected to a pair of headers, wherein: the collecting tubes are The triangular type, the connecting line of the center point of the cross section of the triangular collecting tube forms an angle, the angle is between 60 degrees and 160 degrees, and the projection of the connecting line of the center point of the cross section of the pair of triangular type collecting tubes is a straight line In a parallel line structure.
本发明的目的还可以通过以下方式来实现：  The object of the invention can also be achieved in the following ways:
一种专用于空调机的平行流热交换器,包括一排平行排列的热交换扁管， 平行排列的 热交换扁管的两端口垂直连接一对集流管， 其特征是： 集流管为三角型， 三角型集流管横 切面中心点的连接线形成一夹角， 夹角为 60度到 160度之间， 一对三角型集流管横切面 中心点的连接线的投影为直线时呈相交结构。  A parallel flow heat exchanger dedicated to an air conditioner includes a row of heat exchange flat tubes arranged in parallel, and two ports of the heat exchange flat tubes arranged in parallel are vertically connected to a pair of headers, wherein: the collecting tubes are The triangular type, the connecting line of the center point of the cross section of the triangular collecting tube forms an angle, the angle is between 60 degrees and 160 degrees, and the projection of the connecting line of the center point of the cross section of the pair of triangular type collecting tubes is a straight line In an intersecting structure.
制冷剂通过平行排列的热交换扁管的一边端口上的弧线型集流管进入，流过平行排列 的热交换扁管，然后通过平行排列的热交换扁管的另一边端口上的弧线型集流管流出，制 冷剂流过平行排列的热交换扁管时，与热交换扁管外面的空气在风机强制对流的作用下进 行热交换，达到理想的热交换的目的。由于本发明是针对平行流热交换器中的集流管的一 种设计， 本发明也仅能使用在具有平行流热交换器结构的热交换器中， 所以， 弧线型集流 管为本发明必不可少的技术特征。本发明中的弧线型集流管横切面的中心点的连接线为一 段弧线， 是指包括圆弧线在内的不同弧度的弧形线及其组合， 也可以是弧形线与直线， 与 弯曲线的组合，其技术特征的实质为形成弧线型集流管横切面的中心点的连接线为一段弯 曲的曲线。由于集流管为弧线型集流管，从而与无需弯曲的直条型热交换扁管结合在一起 就可设计制造出许多种不同结构形状的平行流热交换器来，以满足各种特殊空间和特殊应 用场合的要求，大大地扩大了平行流热交换器的应用范围。采用弧线型集流管的平行流热 交换器即为弧线型平行流热交换器。一对弧线型集流管与直条型热交换扁管可以组合成许 多种不同结构形状的弧线型平行流热交换器，如：一对弧线型集流管横切面中心点的连接 线的投影为直线时呈平行线结构;一对弧线型集流管横切面中心点的连接线的投影为直线 的沿长线时呈相重合结构;一对弧线型集流管横切面中心点的连接线的投影为直线时呈相 交结构等， 这些不同形状的结构又可根据成对的弧线形集流管弧心方向相对， 相离， 相向 等结构，设计出多种不同的结构形状来，弧线型集流管不同形状的结构所形成的弧线型平 行流热交换器的热交换能力就会不同， 而且相差较大， 所适用的场合也各有不同， 其中许 多种结构形状的平行流热交换器并不能达到本发明的发明目的，而将弧线型集流管设计为The refrigerant enters through an arc-shaped header on one side port of the heat exchange flat tubes arranged in parallel, flows through the parallel-arranged heat exchange flat tubes, and then passes through the arcs on the other side of the heat exchange flat tubes arranged in parallel When the type of collecting pipe flows out and the refrigerant flows through the heat exchange flat tubes arranged in parallel, the air outside the heat exchange flat tube is heat exchanged under the forced convection of the fan to achieve the purpose of ideal heat exchange. Since the present invention is directed to a design of a header in a parallel flow heat exchanger, the present invention can also be used only in a heat exchanger having a parallel flow heat exchanger structure, so the arc type manifold is An essential technical feature of the invention. In the present invention, the connecting line of the center point of the transverse section of the arc-shaped collecting pipe is an arc, which is a curved line of different arcs including a circular arc line and a combination thereof, and may also be a curved line and a straight line. In combination with the curved line, the technical feature is that the connecting line forming the center point of the transverse section of the arc-shaped collecting tube is a curved curve. Since the header is an arc-shaped header, it is combined with a straight-type heat exchange flat tube that does not need to be bent. Parallel flow heat exchangers of many different structural shapes can be designed and manufactured to meet the requirements of various special spaces and special applications, greatly expanding the application range of parallel flow heat exchangers. A parallel flow heat exchanger using an arc type manifold is an arc type parallel flow heat exchanger. A pair of arc-shaped headers and straight-type heat exchange flat tubes can be combined into a plurality of arc-shaped parallel flow heat exchangers of different structural shapes, such as: a pair of arc-shaped collectors at the center point of the cross-section When the projection of the line is a straight line, it is a parallel line structure; the projection of the connecting line of the center point of the cross-section of the pair of arc-shaped collecting tubes is a coincident structure along a long line of a straight line; the center of the cross-section of a pair of arc-shaped collecting tubes When the projection of the connecting line of the point is a straight line, there is an intersecting structure, etc., and the structures of different shapes can be designed according to the opposite direction of the arc-shaped collecting tube of the pair of arcs, the phase, the opposite direction, and the like, and a plurality of different structures are designed. The arc-type parallel flow heat exchanger formed by the different shapes of the arc type manifold has different heat exchange capacities, and the difference is large, and the applicable occasions are also different, many of which are different. The shape of the parallel flow heat exchanger does not achieve the object of the present invention, and the arc type header is designed as
"一对弧线型集流管横切面中心点的连接线的投影为直线时呈平行线结构"， 则是这些所 有能够达到本发明发明目的的结构形状中效果最佳的一种结构， 将弧线型集流管设计为"The projection of the connecting line at the center point of the cross-section of the arc-shaped manifold is a parallel line structure when it is a straight line", which is the most effective structure among all the structural shapes capable of achieving the object of the present invention. The arc type collector is designed as
"一对弧线型集流管横切面中心点的连接线的投影为直线时呈相交结构"， 是钟对某些特 殊场合的应用要求的设计，具有其他形状结构所无法替代的适用能力。本发明省去了热交 换扁管外焊接散热翅片的技术特征， 因而可以加多扁管的条数， 以扩大热交换能力。将本 发明与直条柱型集流管组合在一起， 可设计成 L型集流管的平行流热交换器。 采用三角 型集流管的平行流热交换器即为三角型平行流热交换器。此处的三角型是指集流管形成一 夹角，集流管横切面的中心点连接线与连接线的两端点的连线形成为三角型。一对三角型 集流管与热交换扁管可以组合成许多种不同结构形状的三角型平行流热交换器，其组合情 况与上述一对弧线型集流管的组合方式相同。当连续采用本发明将集流管横切面的中心点 连接线设计制作为多个夹角时，集流管就成为多角型集流管了。不同结构形状所形成的三 角型平行流热交换器的热交换能力也会不同，而且相差较大，所能适用的场合也各有不同， 其中很多种结构形状的平行流热交换器并不能达到本发明的目的，而将三角型集流管设计 为 "一对三角型集流管横切面中心点的连接线的投影为直线时呈平行线结构"， 则是这些 所有能够达到本发明发明目的的结构形状中效果最佳的一种结构，而将三角型集流管设计 为 "一对三角型集流管横切面中心点的连接线的投影为直线时呈相交结构"， 是钟对某些 特殊应用场合的设计， 具有其他形状结构所无法替代的适用能力。弧线形， 三角形集流管 的设计， 弧线型的弧度， 三角形的夹角的角度， 在实际应用时视具体强制空气对流所采用 的风机进出风口的结构和允许布置的空间而定， 可择其一种或将他们组合在一起配合使 用， 也可与现有的平行流热交换器组合在一起使用， 以取得更佳的热交换能力。 "弧线的 弦线长度为零到 25倍弧高之间"为本发明必不可少的技术特征， 弧线的弦线长度决定了 弧线形集流管的弧形，弦线长短应视与之配套使用的风机的结构而定，弦线可设计得很短， 当弦线长度为零时，弧线型集流管就成为圈形集流管了，与之配套使用的风机可通过弧线 型集流管组成的平行流热交换器的一侧伸入进去， 安装布置。 但弦线却不可过长， 否则， 形成的弧线型平行流热交换器中的各个区域里的热交换能力相差较大，从而造成总体热交 换能力不足， 实现不了本发明的发明目的。 当弧线的弦线长度为 1.1倍弧高到 20倍弧高 之间时， 本发明的效果将更为优越显著。 "集流管横切面中心点的连接线形成的夹角为 60 度到 160度之间"也为本发明必不可少的技术特征。夹角太小或者太大， 采用风机强制空 气对流的效果将会很差，所形成的三角型平行流热交换器中的各个区域里的热交换能力相 差较大， 不可能达到所需要的热交换能力， 从而也就无法实现本发明的发明目的， 本发明 推荐的最佳夹角值为 90度， 120度， 150度。弧线型集流管和三角型集流管的横切面的形 状可为椭圆形， 长方形， 园形等形状， 无论采用那种， 由于其横切面的面积要比热交换扁 管的横切面的面积大数十倍以上， 而且一个平行流热交换器使用集流管的数量仅为两根， 仅仅是使用热交换扁管数量的十几分之一甚至是几十分之一，所以将集流管设计制作成弧 线型，对制冷剂的流动阻力几乎不产生任何影响，而且弧线型集流管与直条型热交换扁管 结合构成的平行流热交换器可以使得热交换扁管呈水平方向平行布置，制冷剂在扁管内的 流动保持了水平方向，克服了采用热交换扁管弯曲的方法制作的平行流热交换器的热交换 扁管仅能与贯流风机叶轮转动轴的轴心线呈垂直方向平行布置，制冷剂在扁管的流动时须 不断上升下降从而降低热交换能力的缺点。 "The projection of the connecting line at the center point of the cross-section of the arc-shaped manifold is an intersecting structure when it is a straight line", which is the design requirement of the clock for some special occasions, and has the applicable ability that cannot be replaced by other shape structures. The invention eliminates the technical feature of welding the heat radiating fins outside the heat exchange flat tube, and thus the number of the flat tubes can be increased to expand the heat exchange capacity. Combining the present invention with a straight column type header, it can be designed as a parallel flow heat exchanger of the L type header. A parallel flow heat exchanger using a triangular header is a triangular parallel flow heat exchanger. Here, the triangular type means that the collecting pipe forms an angle, and the connecting line between the center point connecting line of the cross section of the collecting pipe and the two end points of the connecting line is formed in a triangular shape. A pair of triangular type collecting tubes and heat exchange flat tubes can be combined into a plurality of triangular parallel flow heat exchangers of different structural shapes, and the combination thereof is the same as that of the above pair of arc type collecting tubes. When the center point connecting line of the cross section of the header is continuously designed by the present invention to be formed into a plurality of angles, the collecting tube becomes a polygonal collecting tube. The triangular parallel flow heat exchangers formed by different structural shapes have different heat exchange capacities, and the difference is large, and the applicable applications are also different. Many parallel flow heat exchangers of various structural shapes cannot be achieved. For the purpose of the present invention, the triangular current collecting tube is designed such that "the projection of the connecting line of the center point of the transverse section of the pair of triangular type collecting tubes is a parallel line structure when the straight line is straight", and all of these can achieve the object of the present invention. The structure with the best effect in the structure shape, and the triangular current collector is designed as "the intersecting structure when the projection of the connecting line of the center point of the cross section of the triangular manifold is a straight line", which is a clock to a certain The design of these special applications has the ability to replace other shapes and structures. The arc shape, the design of the triangular manifold, the arc of the arc, the angle of the angle of the triangle, depending on the structure of the fan inlet and outlet and the space allowed for the specific forced air convection in practical applications, Choose one or combine them together and use them in combination with existing parallel flow heat exchangers for better heat exchange. "The length of the arc of the arc is between zero and 25 times the arc height" is an indispensable technical feature of the invention. The length of the arc of the arc determines the length of the string. The arc shape of the arc-shaped collecting pipe, the length of the string should be determined according to the structure of the fan used with it, the string can be designed very short, when the length of the string is zero, the arc-shaped collecting pipe becomes The circular manifold is used, and the fan used with it can be inserted into the side of the parallel flow heat exchanger composed of the arc type collecting tube, and is installed and arranged. However, the strings are not too long. Otherwise, the heat exchange capacities in the respective regions of the arc-type parallel flow heat exchanger formed are largely different, resulting in insufficient overall heat exchange capacity, and the object of the present invention cannot be achieved. When the length of the arc of the arc is between 1.1 times the arc height and 20 times the arc height, the effect of the present invention will be more remarkable. "The angle formed by the connecting line at the center point of the cross section of the header is between 60 degrees and 160 degrees" is also an indispensable technical feature of the present invention. The angle between the angles is too small or too large, and the effect of forced air convection by the fan will be very poor. The heat exchange capacity in each area of the triangular parallel flow heat exchanger formed is quite different, and it is impossible to achieve the required heat. The exchangeability, and thus the object of the invention, is not achieved. The preferred angle values recommended by the present invention are 90 degrees, 120 degrees, and 150 degrees. The cross-sections of the arc-shaped header and the triangular-shaped header may have an elliptical shape, a rectangular shape, a circular shape, or the like, regardless of the type, because the cross-sectional area of the cross-section is larger than that of the cross-section of the heat-exchange flat tube. The area is more than ten times larger, and the number of collectors used in a parallel flow heat exchanger is only two, only one tenth or even one tenth of the number of heat exchange flat tubes, so it will be set. The flow tube is designed in an arc shape, which has almost no influence on the flow resistance of the refrigerant, and the parallel flow heat exchanger formed by the combination of the arc type manifold and the straight type heat exchange flat tube can make the heat exchange flat tube Arranged in parallel in the horizontal direction, the flow of the refrigerant in the flat tube is maintained horizontally, and the heat exchange flat tube of the parallel flow heat exchanger fabricated by the method of bending the heat exchange flat tube can only be used with the rotating shaft of the cross flow fan impeller. The axial lines are arranged in parallel in the vertical direction, and the refrigerant must continuously rise and fall during the flow of the flat tubes to reduce the heat exchange capability.
由于采用了上述技术方案， 本发明具有如下主要特点：  Due to the adoption of the above technical solution, the present invention has the following main features:
1,对那些现有平行流热交换器无法替换使用的热交换器场合，本发明可以做到在不改 变现有空间大小的情况下针对风机进出风口的特点，特别是针对贯流风机进出风口的特点 设计出热交换能力更大热交换效率更高的平行流热交换器。  1. For those heat exchangers that cannot be replaced by existing parallel flow heat exchangers, the present invention can be used for the inlet and outlet of the fan without changing the size of the existing space, especially for the inlet and outlet of the cross flow fan. The design features a parallel flow heat exchanger with a higher heat exchange capacity and a higher heat exchange efficiency.
2,与通过弯曲热交换扁管制作的平行流热交换器相比， 具有制冷剂流动阻止极小， 平 行排列的每条热交换扁管可与贯流风机叶轮转动轴的轴心线平行布置的优点。同时还具有 制造成本低， 易于生产的特点。  2, compared with the parallel flow heat exchanger made by bending the heat exchange flat tube, the refrigerant flow prevention is extremely small, and each heat exchange flat tube arranged in parallel can be arranged in parallel with the axial line of the rotating shaft of the cross flow fan impeller The advantages. At the same time, it has the characteristics of low manufacturing cost and easy production.
3,由于已经能够满足热交换的需要，省去了铝质散热片，进一步降低了生产成本,彻底 消除了因散热铝片带来的所有缺点。 附图说明  3. Since it can meet the needs of heat exchange, the aluminum heat sink is omitted, which further reduces the production cost and completely eliminates all the disadvantages caused by the heat dissipation aluminum sheet. DRAWINGS
图 1是本发明为弧线型平行流热交换器的结构示意图。  BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view showing the structure of an arc type parallel flow heat exchanger according to the present invention.
图 2是图 1的侧视结构示意图。 图 3是本发明为三角型平行流热交换器的结构示意图。 Figure 2 is a side elevational view of Figure 1. Fig. 3 is a schematic view showing the structure of a triangular parallel flow heat exchanger according to the present invention.
图 4是图 3的侧视结构示意图。 具体实施方式  Figure 4 is a side elevational view of Figure 3. detailed description
下面结合附图和实施例对本发明作进一步说明：  The present invention will be further described below in conjunction with the accompanying drawings and embodiments:
图中 1是制冷剂入口管， 2是弧线型集流管正投影中心线， 3是弧线型集流管， 4是 热交换扁管， 5是弧线型集流管正投影中心线， 6是弧线型集流管， 7是弧线型集流管侧 投影中心点的连接线， 8是弦线 ,9是弧高， 10是隔片， 11是制冷剂出口管， 12是夹角。  In the figure, 1 is a refrigerant inlet pipe, 2 is an arc-shaped current collector orthographic projection center line, 3 is an arc-shaped current collecting pipe, 4 is a heat exchange flat pipe, and 5 is an arc-shaped current collecting pipe orthographic projection center line. 6 is an arc type manifold, 7 is a connecting line of the center point of the arc type collector side projection, 8 is a string, 9 is an arc height, 10 is a spacer, 11 is a refrigerant outlet pipe, 12 is Angle.
本实施例为本发明弧线型平行流热交换器作为空调冷凝器应用的实施例：见图 1和图 2。 图中 2清楚地表明了弧线型集流管的构造。 图中 3和图中 6为一对弧线形集流管， 图 中 2为弧线形集流管 3的正投影中心线， 图中 5为弧线形集流管 6的正投影中心线， 图中 2和图中 5为一对平行线， 这是一种一对弧线形集流管 3和 6的特定的结构， 实际应用还 可布置为相交的结构。图中 3和 6之间垂直连接一组平行排列的热交换扁管 4,图中 Ί是弧 线型集流管 3,6侧投影中心点的连接线， 即弧线型集流管横切面中心点的连接线， 为一段 弧线，其技术特征的实质意义为形成弧线型集流管横切面的中心点的连接线为一段弯曲的 曲线。 本实施例的集流管为长方体弧线形集流管， 即集流管 3， 6的横切面为长方形。 弧 线型集流管 3,6的侧投影中心点的连接线 Ί的两端点的直线距离为弦线 8， 弧线型集流管 3,6侧投影中心点的连接线 7的中点到弦线 8的中点距离为弧高 9， 由于弧线型集流管横 切面的中心点的连接线为一段弯曲的曲线，随着曲线组合的情况不同， 曲线并不一定是对 称形的， 此处的弧线型集流管 3,6侧投影中心点的连接线 7的中点应为弧线型集流管 3,6 侧投影中心点的连接线 7的二分之一处。来自压缩机的高温，高压制冷剂气体通过弧线型 集流管 3上的制冷剂入口管 1进入弧线型集流管 3,在隔片 10的阻隔下， 流过热交换扁管 4,流到扁管的另一边端口上的弧线型集流管 6中， 然后在隔片 10的作用下， 通过下面的 热交换扁管返回流入另一边端口上的弧线形集流管 3中，然后再返回流入另一边端口上的 弧线型集流管 6， 制冷剂就是这样通过在扁管中来回反复流动时与扁管外空气进行热交 换， 不断放出热量而最后被冷凝成液体， 直到通过集流管 6上的制冷剂出口管 11流出。 作为热交换器使用时还需配置风机，对冷凝器作强制空气对流热交换，通常风机配置在本 发明的弧形内侧， 被本发明所围着， 弧线型集流管 3,6的弧形应视所配置风机进出风口的 情况而设定。原则上以采用弧线形集流管所形成的平行流热交换器的各部分的热交换扁管 得到较均匀的风量为准。 弧线型集流管 3,6中的隔片 10是为了控制每次可供流入制冷剂 的热交换扁管的数量即制冷剂的流量而设置的，实施时需设置多少隔片及每片隔片的位置 视热交换要求而定。 图中仅标示了 10条热交换扁管 4， 实际应用时热交换扁管的数量视 热交换的需要和具体热交换扁管的结构尺寸而定。本实施例为弧线型平行流热交换器作为 空调冷凝器应用的实施例，与作为空调蒸发器的应用没有本质区别，三角型平行流热交换 器的实施与弧线型平行流热交换器的实施也没有本质区别， 可参照实施。 This embodiment is an embodiment of the arc type parallel flow heat exchanger of the present invention as an air conditioner condenser application: see Fig. 1 and Fig. 2. Figure 2 clearly shows the construction of the arc-type header. 3 and 6 are a pair of arc-shaped headers, 2 is the orthographic centerline of the arc-shaped header 3, and 5 is the orthographic centerline of the arc-shaped header 6. 5 in the figure and 5 in the figure are a pair of parallel lines, which is a specific structure of a pair of arc-shaped headers 3 and 6, and the practical application can also be arranged as an intersecting structure. In the figure, a pair of parallel-arranged heat exchange flat tubes 4 are vertically connected between 3 and 6, in which Ί is a connecting line of the arc-shaped current collecting tube 3, 6 side projection center point, that is, an arc-shaped manifold cross section The connecting line of the center point is a section of an arc, and the technical significance thereof is that the connecting line forming the center point of the transverse section of the arc-shaped collecting tube is a curved curve. The collecting pipe of this embodiment is a rectangular parallelepiped collecting pipe, that is, the cross-section of the collecting pipes 3, 6 is rectangular. The straight line distance between the two ends of the connecting line Ί of the side projection center point of the arc-shaped current collecting tubes 3, 6 is the chord line 8, and the midpoint of the connecting line 7 of the arc-shaped collecting tube 3, 6 side projection center point is The midpoint distance of the string 8 is an arc height of 9, because the connecting line of the center point of the cross section of the arc type collecting tube is a curved curve, and the curve is not necessarily symmetrical as the curve combination is different. Here, the midpoint of the connecting line 7 of the arc-shaped header 3, 6 side projection center point should be one-half of the connecting line 7 of the arc-shaped header 3, 6-side projection center point. The high temperature, high pressure refrigerant gas from the compressor enters the arc type header 3 through the refrigerant inlet pipe 1 on the arc type header 3, and under the barrier of the separator 10, flows the heat exchange flat tube 4, and flows Go to the arc-shaped header 6 on the other side of the flat tube, and then, under the action of the spacer 10, return to the arc-shaped header 3 flowing into the other port through the lower heat exchange flat tube. Then returning to the arc-shaped header 6 flowing into the other port, the refrigerant exchanges heat with the air outside the flat tube by repeatedly flowing back and forth in the flat tube, continuously releasing heat and finally being condensed into a liquid until It flows out through the refrigerant outlet pipe 11 on the header 6. When used as a heat exchanger, a fan is also required to perform forced air convection heat exchange on the condenser. Usually, the fan is disposed inside the curved shape of the present invention, surrounded by the present invention, and the arc of the arc type header 3, 6 The shape should be set according to the condition of the fan inlet and outlet. In principle, a heat exchange flat tube of each part of the parallel flow heat exchanger formed by the arcuate manifold is used to obtain a relatively uniform air volume. The spacers 10 in the arc-type headers 3, 6 are provided for controlling the amount of the heat exchange flat tubes that can be supplied into the refrigerant each time, that is, the flow rate of the refrigerant, and how many spacers and each piece are required to be implemented. Space of the spacer Subject to heat exchange requirements. Only 10 heat exchange flat tubes 4 are indicated in the figure. The number of heat exchange flat tubes in actual application depends on the heat exchange requirements and the structural size of the specific heat exchange flat tubes. This embodiment is an embodiment of the arc type parallel flow heat exchanger as an air conditioner condenser application, and is not substantially different from the application as an air conditioner evaporator. The implementation of the triangular parallel flow heat exchanger and the arc type parallel flow heat exchanger There is no essential difference in the implementation of this, and reference can be made to the implementation.
- 1 - - 1 -

Claims

权利要求书 Claim
1、 一种专用于空调机的平行流热交换器,包括一排平行排列的热交换扁管， 平行排列 的热交换扁管的两端口垂直连接一对集流管， 其特征是： 集流管为弧线型， 弧线型集流管 横切面中心点的连接线为一段弧线，一对弧线型集流管横切面中心点的连接线的投影为直 线时呈平行结构。 1. A parallel flow heat exchanger dedicated to an air conditioner, comprising a row of heat exchange flat tubes arranged in parallel, wherein two rows of heat exchange flat tubes arranged in parallel are vertically connected to a pair of header tubes, the characteristic of which is: The tube is an arc type, and the connecting line of the center point of the cross section of the arc type collecting tube is an arc, and the projection of the connecting line of the center point of the cross section of the pair of arc type collecting tubes is a parallel structure.
2、 根据权利要求 1所述的平行流热交换器， 其特征是： 弧线型集流管横切面中心点 的连接线为一段弧线， 弧线的弦线长度为零到 25倍弧高之间。  2. The parallel flow heat exchanger according to claim 1, wherein: the connecting line of the center point of the cross section of the arc type collecting tube is an arc, and the length of the arc of the arc is zero to 25 times the arc height. between.
3、 根据权利要求 1所述的平行流热交换器， 其特征是： 弧线型集流管横切面中心点 的连接线为一段弧线， 弧线的弦线长度为 1.1倍弧高到 20倍弧高之间。  3. The parallel flow heat exchanger according to claim 1, wherein: the connecting line of the center point of the transverse section of the arc-shaped collecting tube is an arc, and the length of the arc of the arc is 1.1 times the arc height to 20 Double the arc between the heights.
4、 根据权利要求 1所述的平行流热交换器， 其特征是： 一对弧线型集流管横切面中 心点的连接线的投影为直线时呈相交结构。  4. The parallel flow heat exchanger according to claim 1, wherein: the projection of the connecting line of the center point of the cross-section of the pair of arc-shaped headers is an intersecting structure when the projection is a straight line.
5、 根据权利要求 1所述的平行流热交换器， 其特征是： 集流管为三角型， 三角型集 流管横切面中心点的连接线形成一夹角， 夹角为 60度到 160度之间， 一对三角型集流管 横切面中心点的连接线的投影为直线时呈平行结构。  5. The parallel flow heat exchanger according to claim 1, wherein: the collecting pipe is triangular, and a connecting line at a center point of the cross section of the triangular collecting pipe forms an angle, and the angle is 60 degrees to 160 degrees. Between the degrees, the projection of the connecting line of the center point of the cross section of the pair of triangular manifolds is a parallel structure when it is a straight line.
6、根据权利要求 5所述的平行流热交换器， 其特征是:一对三角型集流管横切面 中心点的连接线的投影为直线时呈相交结构。  A parallel flow heat exchanger according to claim 5, wherein the projection of the connecting line of the center point of the cross section of the pair of triangular manifolds is an intersecting structure when the projection is a straight line.
PCT/CN2009/070190 2008-03-03 2009-01-16 A parallel-flow heat exchanger for an air-conditioner WO2009109112A1 (en)

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CN200810065454.1 2008-03-03

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CN114025592A (en) * 2021-12-06 2022-02-08 常州品睿电子科技有限公司 Etched microchannel heat exchanger

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CN101251319A (en) * 2008-03-03 2008-08-27 孙海潮 Cocurrent flow heat converter special for air conditioner
CN103968610B (en) * 2013-02-05 2016-07-06 珠海格力电器股份有限公司 Air-conditioner and micro-channel heat exchanger thereof
CN106017167B (en) * 2016-06-08 2018-03-09 中国航天空气动力技术研究院 A kind of condenser of loop circuit heat pipe suitable for circle ring chamber arrangement
CN107782018B (en) * 2016-08-26 2023-10-31 丹佛斯微通道换热器（嘉兴）有限公司 Heat exchanger, heat exchanger module and air conditioning system

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* Cited by examiner, † Cited by third party
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WO2011156700A3 (en) * 2010-06-12 2012-07-19 A.O. Smith Corporation A micro-channel heat exchanger suitable for heat pump water heater and the manufacturing method
CN114025592A (en) * 2021-12-06 2022-02-08 常州品睿电子科技有限公司 Etched microchannel heat exchanger

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