CN112556245A - Flat pipe with micro-channel and evaporator with flat pipe - Google Patents

Flat pipe with micro-channel and evaporator with flat pipe Download PDF

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Publication number
CN112556245A
CN112556245A CN202011535609.0A CN202011535609A CN112556245A CN 112556245 A CN112556245 A CN 112556245A CN 202011535609 A CN202011535609 A CN 202011535609A CN 112556245 A CN112556245 A CN 112556245A
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CN
China
Prior art keywords
channel
pipe
tube
inlet
outlet
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Pending
Application number
CN202011535609.0A
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Chinese (zh)
Inventor
陈建元
郑磊
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Changzhou Changzheng Heat Exchanger Technology Co ltd
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Changzhou Changzheng Heat Exchanger Technology Co ltd
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Priority to CN202011535609.0A priority Critical patent/CN112556245A/en
Publication of CN112556245A publication Critical patent/CN112556245A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00Evaporators; Condensers
    • F25B39/02Evaporators

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The invention belongs to the technical field of evaporators, and particularly relates to a flat tube with microchannels and an evaporator with the flat tube, which comprise a tube body, wherein a plurality of channels are arranged in the tube body along the length direction of the tube body, a plurality of matching grooves extending along the length direction of the tube body are arranged on the surface of the tube body, the tube body corresponding to the matching grooves is a matching section, the tube body outside the matching grooves is a channel section, the channel section and the matching section are distributed at intervals, the channel comprises a first channel and a second channel, the first channel is arranged in the channel section, the second channel is arranged in the matching section, the first channel is uniformly distributed in the width direction of the tube body, the cross sections of the first channel and the second channel are rectangular, a plurality of ribs along the length direction of the first channel are arranged in the first channel, the inner ends of the plurality of ribs are connected in the first channel, the outer ends of the plurality of ribs are connected with the corresponding positions of the inner walls of the, the evaporator has good finished product quality, the heat exchange efficiency is obviously improved, and the heat dissipation efficiency is obviously improved.

Description

Flat pipe with micro-channel and evaporator with flat pipe
Technical Field
The invention belongs to the technical field of evaporators, and particularly relates to a flat tube with a micro-channel and an evaporator with the flat tube.
Background
The evaporator transfers the heat of high-temperature and high-pressure gas (heat exchange medium) from the compressor to the air outside the evaporator through the flat tubes and the fins, so that the gaseous refrigerant evaporator is condensed into high-temperature and high-pressure liquid, and the liquid passes through a throttling element (such as an expansion valve or a throttling tube) and absorbs a large amount of heat to be gasified.
The flat tube of the existing evaporator has unreasonable structure and poor assembly precision, which affects the quality of the finished product of the evaporator, and the flat tube has large hydraulic diameter, which affects the heat exchange efficiency.
Disclosure of Invention
The invention aims to solve the technical problem that the flat tube with the micro-channel and the evaporator with the flat tube are provided, the assembly precision is high, the quality of the finished evaporator product is good, the heat exchange efficiency is obviously improved, and the heat dissipation efficiency is obviously improved.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a flat pipe with micro-channels comprises a pipe body, wherein a plurality of channels are formed in the pipe body along the length direction of the pipe body, the channels are distributed along the width direction of the pipe body and are mutually independent and parallel, a plurality of matching grooves extending along the length direction of the pipe body are formed in the surface of the pipe body, the matching grooves are uniformly distributed along the width direction of the pipe body, the pipe body corresponding to the matching grooves is a matching section, the pipe body outside the matching grooves is a channel section, the channel section and the matching section are distributed alternately, the channels comprise a first channel arranged in the channel section and a second channel arranged in the matching section, the first channel is uniformly distributed along the width direction of the pipe body in the channel section, the cross sections of the first channel and the second channel are rectangular, a plurality of ribs along the length direction of the ribs are arranged in the first channel, the inner ends of the plurality of ribs are connected in the first channel, the outer ends of the plurality of ribs are connected with the corresponding positions of the inner, the ribs are provided with a plurality of through holes.
Furthermore, four ribs are arranged, the inner ends of the ribs are converged and connected at the center of the first channel, the outer ends of the ribs are respectively connected with the middle of the inner wall surface of the first channel, and the outer ends of the ribs are welded with the middle of the inner wall surface of the first channel.
Furthermore, the cross section of the first channel is square, the cross section of the second channel is rectangular, and the second side length H1 of the first channel along the thickness direction of the pipe body is greater than the second side length H2 of the second channel along the thickness direction of the pipe body.
Furthermore, the second side length H1 of the first channel is more than or equal to 2 times of the second side length H2 of the second channel.
Furthermore, the bottom surface of the matching groove is parallel to the surface of the pipe body.
Furthermore, the thickness of the pipe body is 2 +/-0.02 mm, and the thickness of the pipe body at the matching groove is 1.6 mm.
Furthermore, in the thickness direction of the pipe body, the central lines of the first channel and the second channel are in the same plane with the central line of the pipe body.
Further, the center of the second channel coincides with the center of the matching section.
An evaporator comprises the flat tube with the micro-channel, the flat tube is of a continuous S-shaped winding structure and further comprises a fin, an inlet collecting tube, an outlet collecting tube, an inlet aluminum tube, an outlet aluminum tube, a condensation inlet copper connecting tube and a cold ice outlet copper connecting tube, one end of the flat tube is an inlet, the other end of the flat tube is an outlet, the fin is connected to a tube body, the inlet collecting pipe is connected with the inlet of the flat pipe, the inlet aluminum pipe is connected with the inlet of the inlet collecting pipe, the condensation inlet copper pipe is connected with the inlet aluminum pipe through the inlet rock ring, the outlet collecting pipe is connected with the outlet of the flat pipe, the outlet aluminum pipe is connected with the outlet of the outlet collecting pipe, the condensation outlet copper pipe is connected with the outlet aluminum pipe through an outlet rock ring, the structure of the connection part of the inlet collecting pipe and the inlet is matched with the inlet end structure of the flat pipe, and the structure of the connection part of the outlet collecting pipe and the outlet is matched with the outlet end structure of the flat pipe.
Furthermore, the fins are of continuous folding structures, and two ends of each fin are respectively connected with the tube bodies of the two adjacent flat tubes correspondingly.
The invention has the beneficial effects that: by adopting the scheme, the surfaces of the pipe bodies are not in the same plane due to the arrangement of the matching grooves, so that the quick positioning during connection is facilitated, the connection precision is improved, the connection with the collecting pipe is more convenient and reliable, the connection quality is good, and the quality of the evaporator is improved; the ribs reduce the hydraulic diameter of the first channel, increase the contact area with the heat exchange medium, obviously improve the heat exchange efficiency, and the through holes of the ribs reduce the adverse effect on the flow velocity of the heat exchange medium.
Drawings
The foregoing and other objects, features, and advantages of the invention will be apparent from the following detailed description taken in conjunction with the accompanying drawings.
Fig. 1 is a schematic cross-sectional view of a flat tube according to an embodiment of the present invention.
Fig. 2 is an enlarged schematic view of a portion I in fig. 1.
Fig. 3 is a side view of an evaporator in one embodiment of the invention.
FIG. 4 is a front view of an evaporator according to an embodiment of the present invention.
Wherein: the device comprises a pipe body 1, a matching groove 11, a matching section 12, a channel section 13, a first channel 111, a second channel 112, ribs 2, fins 3, an inlet collecting pipe 4, an outlet collecting pipe 5, an inlet aluminum pipe 6, an outlet aluminum pipe 7, a condensation inlet copper connecting pipe 8, a cold ice outlet copper connecting pipe 9, an inlet rock ring 10 and an outlet rock ring 11.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1 and 2, a flat tube with micro-channels comprises a tube body 1, a plurality of channels are formed in the tube body 1 along the length direction of the tube body, the channels are distributed along the width direction of the tube body and are independent and parallel to each other, the width of the tube body 1 is 60mm, the thickness of the tube body 1 is 2.0 +/-0.02 mm, two matching grooves 11 extending along the length direction of the tube body are formed in the surface of the tube body 1, the two matching grooves 11 are uniformly distributed along the width direction of the tube body, the depth of each matching groove 11 is 0.2mm, the width of each matching groove 11 is 4.8mm, the bottom surface of each matching groove 11 is parallel to the surface of the tube body, the tube body corresponding to each matching groove 11 is a matching section 12, the tube body outside the matching grooves is a channel section 13, the channel sections 13 and the matching sections 12 are distributed at intervals, the channels comprise a first channel 111 arranged in the channel section 13 and a second channel 112 arranged in the matching section 12, the first channel 111 is uniformly distributed along the width direction, the cross section of the first channel 111 is square, the side length H1 of the first channel 111 is 1.2mm, the cross section of the second channel 112 is rectangular, the second side length W2 of the second channel 112 along the length direction of the pipe body is 1.2mm, the first side length H2 along the thickness direction of the pipe body is 0.6mm, H1 is more than or equal to 2H2, the central lines of the first channel 111 and the second channel 112 and the central line of the pipe body are in the same plane in the thickness direction of the pipe body, and the center of the second channel 112 is superposed with the center of the matching section 12, so that the structure of the pipe body is regular, and the production and the manufacture are convenient.
Four ribs 2 along the length direction are arranged in the first channel 111, the inner ends of the four ribs 2 are connected at the center of the first channel 111, the outer ends of the four ribs 2 are connected and welded with the middle of the inner walls of the four sides of the first channel 111, brazing is adopted, the inner ends of the ribs 2 are also formed in a welding mode, a plurality of through holes are formed in the ribs 2, the ribs 2 are arranged, the single first channel 111 is divided into four parts of cavities by the key bars 2, the hydraulic diameter can be reduced, the heat exchange efficiency is improved, the contact area is increased by the ribs 2, the heat exchange efficiency is improved, the through holes in the ribs 2 can avoid adverse effects on tassels in the first channel, the heat exchange efficiency is improved, the surfaces of the pipe bodies are not in the same plane due to the arrangement of the matching grooves 11, the quick positioning during connection is facilitated, the connection precision is improved, and the connection with the collecting pipe is more convenient and reliable, the connection quality is good, and the quality of the evaporator is improved.
Referring to fig. 3 and 4, an evaporator comprises the flat tubes with microchannels, wherein tube bodies 1 of the flat tubes are in a continuous S-shaped winding structure, the evaporator further comprises fins 3, an inlet collecting tube 4, an outlet collecting tube 5, an inlet aluminum tube 6, an outlet aluminum tube 7, a condensation inlet copper connecting tube 8 and a cold ice outlet copper connecting tube 9, one end of each flat tube is an inlet, the other end of each flat tube is an outlet, the fins 2 are connected to the tube bodies, the fins 3 are in a continuous folding structure, two ends of each fin 3 are correspondingly welded with the tube bodies 1 of two adjacent flat tubes, the inlet collecting tube 4 is connected with the inlets of the flat tubes, the inlet aluminum tube 6 is connected with the inlet collecting tube 4, the condensation inlet copper tube 8 is connected with the inlet aluminum tube 6 through an inlet rock ring 10, the outlet collecting tube 5 is connected with the outlet, the outlet aluminum tube 7 is connected with the outlet collecting tube 5, the condensation outlet copper tube 9 is, the structure of the inlet connection part of the inlet collecting pipe 5 and the inlet is matched with the inlet end structure of the flat pipe, and the structure of the outlet connection part of the outlet collecting pipe and the outlet is matched with the outlet end structure of the flat pipe.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiment according to the present invention are within the scope of the present invention.

Claims (10)

1. The utility model provides a flat pipe with microchannel, includes the body, a plurality of passageways along body length direction that offer in the body, a plurality of passageways distribute and mutual independence, parallel, its characterized in that along body width direction: the body surface be equipped with the cooperation groove that the multichannel prolongs its length direction, body width direction evenly distributed is followed to multichannel cooperation groove, the body that cooperation groove department corresponds is the cooperation section, body outside the cooperation groove is the passageway section, cooperation section distribute between each other, the passageway including set up first passageway in the passageway section, set up the second passageway in the cooperation section, first passageway is along body width direction evenly distributed in the passageway section, the cross section of first passageway, second passageway is the rectangle, be equipped with the multichannel in the first passageway along its length direction's rib, the inner of multichannel rib meets in first passageway, the outer end of multichannel rib meets with the inner wall correspondence department of first passageway, is equipped with a plurality of through holes on the rib.
2. The flat tube with microchannels of claim 1, wherein: the rib is provided with four ribs, the inner ends of the ribs are converged and connected at the center of the first channel, the outer ends of the ribs are respectively connected with the middle of the inner wall surface of the first channel, and the outer ends of the ribs are welded with the middle of the inner wall surface of the first channel.
3. The flat tube with microchannels of claim 1, wherein: the cross section of the first channel is square, the cross section of the second channel is rectangular, and the second side length H1 of the first channel along the thickness direction of the pipe body is greater than the second side length H2 of the second channel along the thickness direction of the pipe body.
4. Flat tube with microchannels according to claim 3, characterized in that: the second side length H1 of the first channel is more than or equal to 2 times of the second side length H2 of the second channel.
5. The flat tube with microchannels of claim 1, wherein: the bottom surface of the matching groove is parallel to the surface of the pipe body.
6. The flat tube with microchannels of claim 1, wherein: the thickness of body be 2 +/-0.02 mm, the thickness of the body of cooperation groove department is 1.6 mm.
7. The flat tube with microchannels of claim 1, wherein: in the thickness direction of the pipe body, the central lines of the first channel and the second channel and the central line of the pipe body are in the same plane.
8. The flat tube with microchannels of claim 1, wherein: the center of the second channel is coincided with the center of the matching section.
9. An evaporator, characterized by: the flat tube with the micro-channel comprises the flat tube with the micro-channel as claimed in any one of claims 1 to 8, wherein the flat tube is of a continuous S-shaped winding structure and further comprises a fin, an inlet collecting tube, an outlet collecting tube, an inlet aluminum tube, an outlet aluminum tube, a condensation inlet copper connecting tube and a cold ice outlet copper connecting tube, one end of the flat tube is an inlet, the other end of the flat tube is an outlet, the fin is connected to the tube, the inlet collecting pipe is connected with the inlet of the flat pipe, the inlet aluminum pipe is connected with the inlet of the inlet collecting pipe, the condensation inlet copper pipe is connected with the inlet aluminum pipe through the inlet rock ring, the outlet collecting pipe is connected with the outlet of the flat pipe, the outlet aluminum pipe is connected with the outlet of the outlet collecting pipe, the condensation outlet copper pipe is connected with the outlet aluminum pipe through an outlet rock ring, the structure of the connection part of the inlet collecting pipe and the inlet is matched with the inlet end structure of the flat pipe, and the structure of the connection part of the outlet collecting pipe and the outlet is matched with the outlet end structure of the flat pipe.
10. An evaporator according to claim 9 wherein: the fins are of continuous folding structures, and two ends of each fin are respectively connected with the tube bodies of the two adjacent flat tubes correspondingly.
CN202011535609.0A 2020-12-23 2020-12-23 Flat pipe with micro-channel and evaporator with flat pipe Pending CN112556245A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011535609.0A CN112556245A (en) 2020-12-23 2020-12-23 Flat pipe with micro-channel and evaporator with flat pipe

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Application Number Priority Date Filing Date Title
CN202011535609.0A CN112556245A (en) 2020-12-23 2020-12-23 Flat pipe with micro-channel and evaporator with flat pipe

Publications (1)

Publication Number Publication Date
CN112556245A true CN112556245A (en) 2021-03-26

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CN202011535609.0A Pending CN112556245A (en) 2020-12-23 2020-12-23 Flat pipe with micro-channel and evaporator with flat pipe

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113945026A (en) * 2021-11-11 2022-01-18 合肥美的暖通设备有限公司 Micro-channel heat exchanger, machining method thereof and air conditioner

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008002746A (en) * 2006-06-22 2008-01-10 Kenji Umetsu Air heat exchanger of high performance
CN201803630U (en) * 2010-08-16 2011-04-20 无锡市凯利铝业有限公司 Hot extrusion parallel flow flat tube
CN204268770U (en) * 2014-11-26 2015-04-15 浙江康盛热交换器有限公司 A kind of refrigerator, refrigerator coiled parallel flow condenser
CN210345964U (en) * 2019-02-01 2020-04-17 广东美的暖通设备有限公司 Micro-channel flat tube, heat exchanger and heat pump system
CN214333112U (en) * 2020-12-23 2021-10-01 常州市常蒸热交换器科技有限公司 Flat pipe with micro-channel and evaporator with flat pipe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008002746A (en) * 2006-06-22 2008-01-10 Kenji Umetsu Air heat exchanger of high performance
CN201803630U (en) * 2010-08-16 2011-04-20 无锡市凯利铝业有限公司 Hot extrusion parallel flow flat tube
CN204268770U (en) * 2014-11-26 2015-04-15 浙江康盛热交换器有限公司 A kind of refrigerator, refrigerator coiled parallel flow condenser
CN210345964U (en) * 2019-02-01 2020-04-17 广东美的暖通设备有限公司 Micro-channel flat tube, heat exchanger and heat pump system
CN214333112U (en) * 2020-12-23 2021-10-01 常州市常蒸热交换器科技有限公司 Flat pipe with micro-channel and evaporator with flat pipe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113945026A (en) * 2021-11-11 2022-01-18 合肥美的暖通设备有限公司 Micro-channel heat exchanger, machining method thereof and air conditioner

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