WO2022237152A1 - 管路组件和空调系统 - Google Patents

管路组件和空调系统 Download PDF

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Publication number
WO2022237152A1
WO2022237152A1 PCT/CN2021/137189 CN2021137189W WO2022237152A1 WO 2022237152 A1 WO2022237152 A1 WO 2022237152A1 CN 2021137189 W CN2021137189 W CN 2021137189W WO 2022237152 A1 WO2022237152 A1 WO 2022237152A1
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WIPO (PCT)
Prior art keywords
section
steel pipe
copper sleeve
pipeline assembly
pipe
Prior art date
Application number
PCT/CN2021/137189
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English (en)
French (fr)
Inventor
龙旦风
吴彦东
张铁钢
钟敏
Original Assignee
广东美的暖通设备有限公司
合肥美的暖通设备有限公司
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Application filed by 广东美的暖通设备有限公司, 合肥美的暖通设备有限公司 filed Critical 广东美的暖通设备有限公司
Priority to AU2021444627A priority Critical patent/AU2021444627A1/en
Priority to EP21941714.4A priority patent/EP4306834A1/en
Priority to US18/555,244 priority patent/US20240200696A1/en
Publication of WO2022237152A1 publication Critical patent/WO2022237152A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/0209—Ducting arrangements characterised by their connecting means, e.g. flanges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/02—Welded joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/02—Welded joints
    • F16L13/0218—Welded joints having an inner or outer ring
    • F16L13/0236—Welded joints having an inner or outer ring having an outer ring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/40—Fluid line arrangements

Definitions

  • the present disclosure relates to the technical field of air conditioning, and in particular, to a pipeline assembly and an air conditioning system.
  • the air-conditioning refrigerant pipeline is usually made of copper sleeves, and the welding between the copper sleeves is widely used phosphor copper solder with good fluidity, low price and excellent process performance.
  • the air-conditioning refrigerant pipeline adopts a steel pipe design.
  • the welding between steel pipes requires the use of silver-containing solder, which is expensive and not suitable for promotion and commercial use.
  • the welding equipment and welding process in the related art are all designed based on copper pipes, and the steel pipes have poor adaptability to the current welding equipment and welding processes.
  • the present disclosure aims to solve one of the technical problems in the related art at least to a certain extent.
  • the embodiments of the present disclosure propose a pipeline assembly, which has low cost and good adaptability to existing welding equipment and welding processes.
  • Embodiments of the present disclosure also propose an air conditioning system using the above pipeline assembly.
  • the pipeline assembly includes: a first steel pipe, a second steel pipe, a first copper sleeve and a second copper sleeve, the first copper sleeve is fixed on the end of the first steel pipe, and the The first copper sleeve includes a first section sleeved on the outer circumference of the first steel pipe and a second section extending beyond the end of the first steel pipe, and the second copper sleeve is fixed on the end of the second steel pipe , the second copper sleeve is sleeved on the outer peripheral side of the second steel pipe, and the second section and at least part of the second copper sleeve are sleeved and welded to each other.
  • the pipeline assembly of the embodiment of the present disclosure avoids direct welding between steel materials and steel materials, thereby avoiding the need to use expensive silver-containing solder, and reducing welding costs.
  • the connection between the first copper sleeve and the first steel pipe, the connection between the second copper sleeve and the second steel pipe can be fixed and connected in advance by means of tunnel furnace brazing, and the welding of the first copper sleeve and the second copper sleeve can be done in the air conditioner.
  • the on-site assembly is completed by artificial flame welding.
  • the first copper sleeve and the second copper sleeve can also be fused by artificial flame welding.
  • the refrigeration tube design that replaces the steel material with the copper material is realized, which reduces the cost of the refrigeration tube.
  • the matching of equipment and welding process enhances the adaptability and facilitates the assembly and maintenance of the air conditioning system.
  • the second copper sleeve includes a third section and a fourth section, and the second section is sleeved on an outer peripheral side of the third section and exposes the fourth section.
  • the fourth section has a length dimension L1 along the axial direction of the second copper sleeve, wherein 5mm ⁇ L1 ⁇ 30mm.
  • the first steel pipe includes a first main pipe section and a flaring section, the flaring section is arranged at the end of the first main pipe section, and the inner diameter of the flaring section is larger than that of the first pipe section.
  • the inner diameter of the main pipe section, the first section is sleeved on the outer peripheral side of the flaring section.
  • the flaring section includes a first transition section and a large-diameter section, the first transition section is connected between the first main pipe section and the large-diameter section, and the first section covers Located on the outer peripheral side of the large-diameter section, the cross-section of the first transition section in the axial direction of the first steel pipe is truncated cone.
  • the length L2 of the first transition section in the axial direction of the first steel pipe is not less than 3 mm.
  • the second steel pipe includes a second main pipe section and a necking section, the necking section is arranged at the end of the second main pipe section, and the inner diameter of the necking section is smaller than that of the second main pipe section.
  • the inner diameter of the main pipe section, the second copper sleeve is sleeved on the outer peripheral side of the necking section.
  • the necking section includes a second transition section and a small-diameter section, the second transition section is connected between the second main pipe section and the small-diameter section, and the second copper sleeve is sleeved on On the outer peripheral side of the small-diameter section, the cross-section of the second gradual change section in the axial direction of the second steel pipe is truncated cone.
  • the length L3 of the second transition section in the axial direction of the second steel pipe is not less than 3 mm.
  • the first copper sleeve has a tube wall thickness t1, where 0.5 mm ⁇ t1 ⁇ 2 mm, and the second copper sleeve has a tube wall thickness t2, where 0.3 mm ⁇ t2 ⁇ 0.8 mm.
  • both the first steel pipe and the second steel pipe are stainless steel pipes
  • the first copper sleeve and the second copper sleeve are both red copper sleeves
  • the first steel pipe and the first The copper sleeve is welded and the second steel pipe is welded to the second copper sleeve.
  • the air conditioning system in the embodiment of the present disclosure includes a pipeline assembly, and the pipeline assembly is the pipeline assembly described in any one of the above embodiments.
  • Fig. 1 is a schematic diagram of the overall structure of a pipeline assembly according to an embodiment of the present disclosure.
  • Fig. 2 is a schematic cross-sectional view at A-A in Fig. 1 .
  • FIG. 3 is a partially enlarged schematic diagram of A in FIG. 2 .
  • Fig. 4 is a schematic diagram of the overall structure of a pipeline assembly according to an embodiment of the present disclosure.
  • Fig. 5 is a schematic cross-sectional view at B-B in Fig. 4 .
  • FIG. 6 is a partially enlarged schematic diagram of the location B in FIG. 5 .
  • Fig. 7 is a schematic diagram of the overall structure of a pipeline assembly according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic cross-sectional view at C-C in FIG. 7 .
  • FIG. 9 is a partially enlarged schematic view at point C in FIG. 8 .
  • a pipeline assembly 100 includes a first steel pipe 1 , a second steel pipe 2 , a first copper sleeve 3 and a second copper sleeve 4 .
  • the first copper sleeve 3 is fixed on the end of the first steel pipe 1, the first copper sleeve 3 includes a first section 31 sleeved on the first steel pipe 1 and a second section 32 extending beyond the end of the first steel pipe 1,
  • the second copper sleeve 4 is fixed on the end of the second steel pipe 2 , the second copper sleeve 4 is sleeved on the outer peripheral side of the second steel pipe 2 , and the second segment 32 and at least part of the second copper sleeve 4 are sleeved and welded to each other.
  • the first copper sleeve 3 is welded and fixed to the end of one end of the first steel pipe 1.
  • the end of one end of the first steel pipe 1 can be regarded as a small section of one end of the first steel pipe 1.
  • the inner diameter of the first copper sleeve 3 is larger than the outer diameter of the first steel pipe 1
  • the first copper sleeve 3 is sleeved on the outer peripheral side of the first steel pipe 1 .
  • the second section 32 is extended to the outside of one end of the first steel pipe 1 .
  • the second copper sleeve 4 is welded and fixed on one end of the second steel pipe 2 , the inner diameter of the second copper sleeve 4 is larger than the outer diameter of the second steel pipe 2 , and the second copper sleeve 4 is set on the outer peripheral side of the second steel pipe 2 .
  • the outer diameter of the second copper sleeve 4 is smaller than the inner diameter of the first copper sleeve 3 .
  • first copper sleeve 3 can be threaded with the first steel pipe 1
  • second copper sleeve 4 can be threaded with the second steel pipe 2 .
  • the pipeline assembly 100 of the embodiment of the present disclosure avoids direct welding between steel materials and steel materials, thereby avoiding the need to use expensive silver-containing solder and reducing welding costs.
  • the connection between the first copper sleeve 3 and the first steel pipe 1 and the connection between the second copper sleeve 4 and the second steel pipe 2 can be fixed and connected in advance by means of tunnel furnace brazing.
  • the first copper sleeve 3 and the second copper sleeve 4 The welding can be completed by artificial flame welding when the air conditioner is assembled on site.
  • the first copper sleeve 3 and the second copper sleeve 4 can also be fused by artificial flame welding.
  • the refrigeration tube design that replaces the steel material with the copper material is realized, which reduces the cost of the refrigeration tube.
  • the matching of equipment and welding process enhances the adaptability and facilitates the assembly and maintenance of the air conditioning system.
  • the second copper sleeve 4 includes a third section 41 and a fourth section 42 , the second section 32 is sleeved on the outer peripheral side of the third section 41 and exposes the fourth section 42 .
  • the second copper sleeve 4 includes a third section 41 and a fourth section 42 along the axial direction, wherein the third section 41 is used to be inserted into the second section 32 of the first copper sleeve 3 and connected with the second
  • the segments 32 are connected by welding, and the fourth segment 42 is located outside the first copper sleeve 3 after the first copper sleeve 3 and the second copper sleeve 4 are welded.
  • the setting of the fourth section 42 can avoid the over-burning of the second steel pipe 2 when the first copper sleeve 3 and the second copper sleeve 4 are welded, and ensure the connection strength of the air-conditioning and refrigeration tube group.
  • the fourth section 42 has a length dimension L1 along the axial direction of the second copper sleeve 4 , where 5mm ⁇ L1 ⁇ 30mm.
  • the fourth section 42 has a length dimension L1
  • the length dimension L1 can be any value between 5 millimeters and 30 millimeters, for example, the length dimension L1 can be 5 millimeters, 8 millimeters, 11 millimeters, 18 millimeters, 20mm, 22mm, 25mm, 28mm, 29mm, 30mm, etc.
  • the fourth section 42 adopts the above-mentioned size design, on the one hand, it can reduce the consumables of the second copper sleeve 4, and on the other hand, it can prevent the second steel pipe 2 from overheating.
  • the first steel pipe 1 includes a first main pipe section 11 and a flaring section 12, the flaring section 12 is arranged at the end of the first main pipe section 11, and the inner diameter of the flaring section 12 is larger than that of the first main pipe section 11 Inner diameter, the first section 31 is sleeved on the outer peripheral side of the flaring section 12 .
  • the first steel pipe 1 can be divided into a first main pipe section 11 and a flaring section 12 along the axial direction, the first main pipe section 11 is the main part of the first steel pipe 1, and the flaring section 12 Set at the end of one end of the first main pipe section 11, the inner diameter of the flaring section 12 is larger than the inner diameter of the first main pipe section 11, and the setting of the flaring section 12 improves the adaptability of the size of the first steel pipe 1 and the first copper sleeve 3 It avoids the situation that the first steel pipe 1 needs to use a steel pipe with a larger radial dimension, so that the inner diameter of the first main pipe section 11 and the inner diameter of the second steel pipe 2 can be adjusted to be substantially the same.
  • the flaring section 12 includes a first transition section 121 and a large-diameter section 122, the first transition section 121 is connected between the first main pipe section 11 and the large-diameter section 122, and the first section 31 is sleeved on the large-diameter section 122.
  • the cross section of the first transition section 121 in the axial direction of the first steel pipe 1 is truncated cone.
  • the first transition section 121 is arranged between the first main pipe section 11 and the large-diameter section 122, the first transition section 121 is in the shape of a truncated cone as a whole, the large-diameter section 122 is a straight pipe, and the first transition section 121 realizes The size transition between the first main pipe section 11 and the large diameter section 122 is ensured. Since the outer diameters of the parts of the large-diameter section 122 are consistent, the welding fit between the large-diameter section 122 and the first copper sleeve 3 is facilitated.
  • the length L2 of the first transition section 121 in the axial direction of the first steel pipe 1 is not less than 3 mm.
  • the length dimension L2 may be 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, etc.
  • the above-mentioned size design of the first transition section 121 is conducive to improving the structural strength of the first transition section 121.
  • the second steel pipe 2 includes a second main pipe section 21 and a necking section 22, the necking section 22 is arranged at the end of the second main pipe section 21, and the inner diameter of the necking section 22 is smaller than that of the second main pipe section 21 Inner diameter, the second copper sleeve 4 is sleeved on the outer peripheral side of the necking section 22 .
  • the second steel pipe 2 can be divided into a second main pipe section 21 and a necking section 22 along the axial direction, the second main pipe section 21 is the main part of the second steel pipe 2, and the necking section 22 Set at the end of one end of the second main pipe section 21, the inner diameter of the necking section 22 is smaller than the inner diameter of the second main pipe section 21, and the setting of the necking section 22 improves the adaptability of the size of the second steel pipe 2 and the second copper sleeve 4 It avoids the situation that the second steel pipe 2 needs to use a steel pipe with a smaller radial dimension, so that the inner diameter of the first steel pipe 1 and the inner diameter of the second main pipe section 21 can be adjusted to be substantially the same.
  • the necking section 22 includes a second transition section 221 and a small diameter section 222, the second transition section 221 is connected between the second main pipe section 21 and the small diameter section 222, and the second copper sleeve 4 is sleeved on the small diameter section On the outer peripheral side of 222 , the cross section of the second transition section 221 in the axial direction of the second steel pipe 2 is truncated cone.
  • the second transition section 221 is arranged between the second main pipe section 21 and the small-diameter section 222.
  • the second transition section 221 is a tapered tube as a whole, and the small-diameter section 222 is a straight pipe.
  • the second transition section 221 realizes The size transition between the second main pipe section 21 and the small diameter section 222 . Since the outer diameter of each part of the small-diameter section 222 remains consistent, the welding fit between the small-diameter section 222 and the second copper sleeve 4 is facilitated.
  • the length L3 of the second transition section 221 in the axial direction of the second steel pipe 2 is not less than 3 mm.
  • the length dimension L3 may be 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, etc.
  • the above size design of the second transition section 221 is beneficial to improve the structural strength of the second transition section 221 .
  • the first copper sleeve 3 has a tube wall thickness t1, where 0.5 mm ⁇ t1 ⁇ 2 mm
  • the second copper sleeve 4 has a tube wall thickness t2, where 0.3 mm ⁇ t2 ⁇ 0.8 mm.
  • the tube wall thickness t1 of the first copper sleeve 3 can be any value greater than 0.5 millimeters to 2 millimeters, for example, the tube wall thickness t1 can be 0.5 millimeters, 0.8 millimeters, 1.0 millimeters, 1.2 millimeters, 1.5mm, 1.7mm, 1.9mm, 2.0mm, etc.
  • the tube wall thickness t2 of the second copper sleeve 4 can be any value greater than 0.3 mm to 0.8 mm, for example, the tube wall thickness t2 can be 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, etc. .
  • the structural strength of the first copper sleeve 3 and the second copper sleeve 4 is ensured, and the size matching of the first copper sleeve 3 and the second copper sleeve 4 is also facilitated.
  • both the first steel pipe 1 and the second steel pipe 2 are stainless steel pipes
  • the first copper sleeve 3 and the second copper sleeve 4 are both copper sleeves
  • the first steel pipe 1 is welded to the first copper sleeve 3
  • the second The steel pipe 2 is welded to the second copper sleeve 4 .
  • the welding of the first steel pipe 1 and the first copper sleeve 3, the welding of the second steel pipe 2 and the second copper sleeve 4 can all adopt the mode of tunnel furnace brazing, because the welding temperature of tunnel furnace brazing is higher than the temperature of artificial flame welding , thus, when the first copper sleeve 3 and the second copper sleeve 4 are welded by artificial flame, the welding strength of the first steel pipe 1 and the first copper sleeve 3 and the welding strength of the second steel pipe 2 and the second copper sleeve 4 can be reduced. Influence of welding strength.
  • the first steel pipe 1 may be a straight pipe or a bent pipe
  • the second steel pipe 2 may be a straight pipe or a bent pipe.
  • the air conditioning system of the embodiments of the present disclosure includes a pipeline assembly, which may be the pipeline assembly 100 described in the above embodiments.
  • the air conditioning system includes compressors, evaporators, condensers, etc.
  • the pipeline assembly 100 can be connected between the compressor and the evaporator, or between the compressor and the condenser.
  • the pipeline assembly 100 of the air conditioning system is low in cost, and has good adaptability to existing welding equipment and welding processes.
  • first and second are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features.
  • the features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • “plurality” means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
  • a first feature being “on” or “under” a second feature may mean that the first and second features are in direct contact, or that the first and second features are indirect through an intermediary. touch.
  • “above”, “above” and “above” the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
  • “Below”, “beneath” and “beneath” the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
  • Central Air Conditioning (AREA)

Abstract

一种管路组件（100）和空调系统，管路组件（100）包括第一钢管（1）、第二钢管（2）、第一铜套（3）和第二铜套（4），第一铜套（3）固定在第一钢管（1）的端部，且第一铜套（3）包括套设在第一钢管（1）外周的第一段（31）和延伸超出第一钢管（1）的端部的第二段（32），第二铜套（4）固定在第二钢管（2）的端部，第二铜套（4）套设在第二钢管（2）的外周侧，第二段（32）与至少部分第二铜套（4）彼此套设且彼此焊接。

Description

管路组件和空调系统
相关申请的交叉引用
本申请基于申请号为202121047547.9、申请日为2021年5月14日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本公开涉及空调技术领域，具体地，涉及一种管路组件和空调系统。
背景技术
空调制冷剂管路通常为铜套，铜套之间的焊接广泛采用流动性好、价格便宜、工艺性能优良的磷铜钎料。为了降低空调制冷剂管路的材料成本、增强结构强度、减少制冷剂的热损失，相关技术中，提出了将空调制冷剂管路采用钢管的设计。但是，钢管之间的焊接需要使用含银钎料，含银钎料的成本高，不适合推广商用。另外，相关技术中的焊接设备和焊接工艺均是基于铜管设计的，钢管对于目前焊接设备和焊接工艺的适应性较差。
发明内容
本公开旨在至少在一定程度上解决相关技术中的技术问题之一。
为此，本公开的实施方式提出一种管路组件，该管路组件的成本低，对现有焊接设备和焊接工艺具有较好的适应性。
本公开的实施方式还提出一种应用上述管路组件的空调系统。
根据本公开的实施方式的管路组件包括：第一钢管、第二钢管、第一铜套和第二铜套，所述第一铜套固定在所述第一钢管的端部，且所述第一铜套包括套设在所述第一钢管外周的第一段和延伸超出所述第一钢管的端部的第二段，所述第二铜套固定在所述第二钢管的端部，所述第二铜套套设在所述第二钢管的外周侧，所述第二段与至少部分所述第二铜套彼此套设且彼此焊接。
本公开的实施方式的管路组件，避免了钢材料和钢材料之间的直接焊接，进而避免了需要采用昂贵的含银钎料的情况，降低了焊接成本。另外，第一铜套和第一钢管的连接、第二铜套和第二钢管的连接可以采用隧道炉钎焊的方式提前固定连接，第一铜套和第二铜套的焊接则可以在空调现场总装时采用人工火焰焊接的方式完成，其次，检修时，第一铜套和第二铜套之间也可以采用人工火焰焊接的方式熔断。由此，一方面实现了将钢材料替换为铜材料的制冷管设计，降低了制冷管的成本，另一方面由于现场操作依然是对铜材料的焊接，使得制冷管的焊接与现有的焊接设备和焊接工艺匹配，增强了适应性，方便了空调系统的装配和维修。
在一些实施方式中，所述第二铜套包括第三段和第四段，所述第二段套设在所述第三段的外周侧且露出所述第四段。
在一些实施方式中，所述第四段具有沿所述第二铜套轴向的长度尺寸L1，其中5毫米≤L1≤30毫米。
在一些实施方式中，所述第一钢管包括第一主管段和扩口段，所述扩口段设在所述第一主管段的端部，所述扩口段的内径大于所述第一主管段的内径，所述第一段套设在所述扩口段的外周侧。
在一些实施方式中，所述扩口段包括第一渐变段和大径段，所述第一渐变段连接在所述第一主管段和所述大径段之间，所述第一段套设在所述大径段的外周侧，所述第一渐变段在所述第一钢管轴向的横截面为锥台形。
在一些实施方式中，所述第一渐变段在所述第一钢管轴向的长度尺寸L2不小于3毫米。
在一些实施方式中，所述第二钢管包括第二主管段和缩口段，所述缩口段设在所述第二主管段的端部，所述缩口段的内径小于所述第二主管段的内径，所述第二铜套套设在所述缩口段的外周侧。
在一些实施方式中，所述缩口段包括第二渐变段和小径段，所述第二渐变段连接在所述第二主管段和所述小径段之间，所述第二铜套套设在所述小径段的外周侧，所述第二渐变段在所述第二钢管轴向的横截面为锥台形。
在一些实施方式中，所述第二渐变段在所述第二钢管轴向的长度尺寸L3不小于3毫米。
在一些实施方式中，所述第一铜套具有管壁厚度t1，其中0.5毫米≤t1≤2毫米，所述第二铜套具有管壁厚度t2，其中0.3毫米≤t2≤0.8毫米。
在一些实施方式中，所述第一钢管和所述第二钢管均为不锈钢管，所述第一铜套和所述第二铜套均为紫铜套，所述第一钢管与所述第一铜套焊接且所述第二钢管与所述第二铜套焊接。
本公开的实施方式的空调系统包括管路组件，所述管路组件为上述任一实施方式所述的管路组件。
附图说明
图1是根据本公开的实施例的管路组件的整体结构示意图。
图2是图1中A-A处的剖视示意图。
图3是图2中A处的局部放大示意图。
图4是根据本公开的实施例的管路组件的整体结构示意图。
图5是图4中B-B处的剖视示意图。
图6是图5中B处的局部放大示意图。
图7是根据本公开的实施例的管路组件的整体结构示意图。
图8是图7中C-C处的剖视示意图。
图9是图8中C处的局部放大示意图。
附图标记：
管路组件100；
第一钢管1；第一主管段11；扩口段12；第一渐变段121；大径段122；
第二钢管2；第二主管段21；缩口段22；第二渐变段221；小径段222；
第一铜套3；第一段31；第二段32；
第二铜套4；第三段41；第四段42。
具体实施方式
下面详细描述本公开的实施例，所述实施例的示例在附图中示出。下面通过参考附图描述的实施例是示例性的，旨在用于解释本公开，而不能理解为对本公开的限制。
如图1至图3所示，根据本公开的实施例的管路组件100包括第一钢管1、第二钢管2、第一铜套3和第二铜套4。
第一铜套3固定在第一钢管1的端部，第一铜套3包括套设在第一钢管1上的第一段31和延伸超出第一钢管1的端部的第二段32，第二铜套4固定在第二钢管2的端部，第二铜套4套设在第二钢管2的外周侧，第二段32与至少部分第二铜套4彼此套设且彼此焊接。
如图2所示，第一铜套3焊接固定在第一钢管1的一端的端部，需要说明的是，第一钢管1的一端的端部可视为第一钢管1一端的一小段部分，且第一铜套3的内径大于第一钢管1的外径，第一铜套3套设在第一钢管1的外周侧。沿着第一铜套3的轴向方向，如图3所示，第一铜套3包括第一段31和第二段32，其中，第一段31套设在第一钢管1的外周侧，且与第一钢管1密封焊接固定，第二段32则外延至第一钢管1的一端外侧。
第二铜套4焊接固定在第二钢管2的一端的端部，第二铜套4的内径大于第二钢管2的外径，第二铜套4套设在第二钢管2的外周侧。第二铜套4的外径小于第一铜套3的内径。
对接第一钢管1和第二钢管2时，将第二铜套4的一部分插入第一铜套3的第二段32内，然后将第二铜套4与第二段32密封焊接即可。
可以理解的是，在其它一些实施例中，第一铜套3可以与第一钢管1螺纹装配，第二铜套4可以与第二钢管2螺纹装配。
本公开的实施例的管路组件100，避免了钢材料和钢材料之间的直接焊接，进而避免了需要采用昂贵的含银钎料的情况，降低了焊接成本。另外，第一铜套3和第一钢管1的连接、第二铜套4和第二钢管2的连接可以采用隧道炉钎焊的方式提前固定连接，第一铜套 3和第二铜套4的焊接则可以在空调现场总装时采用人工火焰焊接的方式完成，其次，检修时，第一铜套3和第二铜套4之间也可以采用人工火焰焊接的方式熔断。由此，一方面实现了将钢材料替换为铜材料的制冷管设计，降低了制冷管的成本，另一方面由于现场操作依然是对铜材料的焊接，使得制冷管的焊接与现有的焊接设备和焊接工艺匹配，增强了适应性，方便了空调系统的装配和维修。
在一些实施例中，第二铜套4包括第三段41和第四段42，第二段32套设在第三段41的外周侧且露出第四段42。如图3所示，第二铜套4沿着轴向方向包括第三段41和第四段42，其中第三段41用于插入第一铜套3的第二段32内并与第二段32焊接连接，第四段42则在第一铜套3和第二铜套4焊接后位于第一铜套3的外侧。第四段42的设置能够避免第一铜套3和第二铜套4焊接时第二钢管2过烧的情况，保证了空调制冷管组的连接强度。
在一些实施例中第四段42具有沿第二铜套4轴向的长度尺寸L1，其中5毫米≤L1≤30毫米。如图3所示，第四段42具有长度尺寸L1，长度尺寸L1可以为5毫米至30毫米之间的任意数值，例如，长度尺寸L1可以为5毫米、8毫米、11毫米、18毫米、20毫米、22毫米、25毫米、28毫米、29毫米、30毫米等。第四段42采用上述的尺寸设计，一方面能够减少第二铜套4的耗材，另一方面能够避免第二钢管2过烧。
在一些实施例中，第一钢管1包括第一主管段11和扩口段12，扩口段12设在第一主管段11的端部，扩口段12的内径大于第一主管段11的内径，第一段31套设在扩口段12的外周侧。如图4和图5所示，第一钢管1沿着轴向可以分为第一主管段11和扩口段12，第一主管段11即为第一钢管1的主体部分，扩口段12设在第一主管段11的一端的端部，扩口段12的内径大于第一主管段11的内径，扩口段12的设置提高了第一钢管1和第一铜套3的尺寸的适应性，避免了第一钢管1需要采用径向尺寸较大的钢管的情况，从而便于将第一主管段11的内径和第二钢管2的内径调至大体一致。
在一些实施例中，扩口段12包括第一渐变段121和大径段122，第一渐变段121连接在第一主管段11和大径段122之间，第一段31套设在大径段122的外周侧，第一渐变段121在第一钢管1轴向的横截面为锥台形。
如图6所示，第一渐变段121设置在第一主管段11和大径段122之间，第一渐变段121整体为锥台形，大径段122为直管，第一渐变段121实现了第一主管段11和大径段122之间的尺寸过渡。由于大径段122各部分的外径保持一致，从而方便了大径段122和第一铜套3的焊接配合。
在一些实施例中第一渐变段121在第一钢管1轴向的长度尺寸L2不小于3毫米。例如，长度尺寸L2可为3毫米、4毫米、5毫米、6毫米、7毫米、8毫米等。第一渐变段121采 用上述尺寸设计有利于提高第一渐变段121的结构强度。
在一些实施例中，第二钢管2包括第二主管段21和缩口段22，缩口段22设在第二主管段21的端部，缩口段22的内径小于第二主管段21的内径，第二铜套4套设在缩口段22的外周侧。
如图7和图8所示，第二钢管2沿着轴向可以分为第二主管段21和缩口段22，第二主管段21即为第二钢管2的主体部分，缩口段22设在第二主管段21的一端的端部，缩口段22的内径小于第二主管段21的内径，缩口段22的设置提高了第二钢管2和第二铜套4的尺寸的适应性，避免了第二钢管2需要采用径向尺寸较小的钢管的情况，从而便于将第一钢管1的内径和第二主管段21的内径调至大体一致。
在一些实施例中，缩口段22包括第二渐变段221和小径段222，第二渐变段221连接在第二主管段21和小径段222之间，第二铜套4套设在小径段222的外周侧，第二渐变段221在第二钢管2轴向的横截面为锥台形。
如图9所示，第二渐变段221设置在第二主管段21和小径段222之间，第二渐变段221整体为锥形管，小径段222为直管，第二渐变段221实现了第二主管段21和小径段222之间的尺寸过渡。由于小径段222各部分的外径保持一致，从而方便了小径段222和第二铜套4的焊接配合。
在一些实施例中，第二渐变段221在第二钢管2轴向的长度尺寸L3不小于3毫米。例如，长度尺寸L3可为3毫米、4毫米、5毫米、6毫米、7毫米、8毫米等。第二渐变段221采用上述尺寸设计有利于提高第二渐变段221的结构强度。
在一些实施例中，第一铜套3具有管壁厚度t1，其中0.5毫米≤t1≤2毫米，第二铜套4具有管壁厚度t2，其中0.3毫米≤t2≤0.8毫米。
如图3所示，第一铜套3的管壁厚度t1可以为大于0.5毫米至2毫米之间的任意数值，例如，管壁厚度t1可以为0.5毫米、0.8毫米、1.0毫米、1.2毫米、1.5毫米、1.7毫米、1.9毫米、2.0毫米等。第二铜套4的管壁厚度t2可以为大于0.3毫米至0.8毫米之间的任意数值，例如，管壁厚度t2可以为0.3毫米、0.4毫米、0.5毫米、0.6毫米、0.7毫米、0.8毫米等。
由此，既保证了第一铜套3和第二铜套4的结构强度，也方便了第一铜套3和第二铜套4的尺寸配套。
在一些实施例中，第一钢管1和第二钢管2均为不锈钢管，第一铜套3和第二铜套4均为紫铜套，第一钢管1与第一铜套3焊接且第二钢管2与第二铜套4焊接。第一钢管1和第一铜套3的焊接、第二钢管2和第二铜套4的焊接均可以采用隧道炉钎焊的方式，由于隧道炉钎焊的焊接温度高于人工火焰焊接的温度，由此，当采用人工火焰焊接第一铜套 3和第二铜套4时，能够降低对第一钢管1和第一铜套3的焊接强度、第二钢管2和第二铜套4的焊接强度的影响。
在一些实施例中，第一钢管1可以为直管或弯管，第二钢管2可以为直管或弯管。
下面描述本公开的实施例的空调系统。
本公开的实施例的空调系统包括管路组件，管路组件可以为上述实施例中描述的管路组件100。空调系统包括压缩机、蒸发器、冷凝器等。管路组件100可以连接在压缩机和蒸发器之间，也可以连接压缩机和冷凝器之间。
本公开的实施例的空调系统，空调系统的管路组件100成本低，对现有焊接设备和焊接工艺具有较好的适应性。
在本公开的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本公开和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本公开的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体地限定。
在本公开中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接或彼此可通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本公开中的具体含义。
在本公开中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材 料或者特点包含于本公开的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本公开的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本公开的限制，本领域的普通技术人员在本公开的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (12)

  1. 一种管路组件，其特征在于，包括：
    第一钢管；
    第二钢管；
    第一铜套；和
    第二铜套，
    其中所述第一铜套固定在所述第一钢管的端部，且所述第一铜套包括套设在所述第一钢管外周的第一段和延伸超出所述第一钢管的端部的第二段，所述第二铜套固定在所述第二钢管的端部，所述第二铜套套设在所述第二钢管的外周侧，所述第二段与至少部分所述第二铜套彼此套设且彼此焊接。
  2. 根据权利要求1所述的管路组件，其特征在于，所述第二铜套包括第三段和第四段，所述第二段套设在所述第三段的外周侧且露出所述第四段。
  3. 根据权利要求2所述的管路组件，其特征在于，所述第四段具有沿所述第二铜套轴向的长度尺寸L1，其中5毫米≤L1≤30毫米。
  4. 根据权利要求1至3中任一项所述的管路组件，其特征在于，所述第一钢管包括第一主管段和扩口段，所述扩口段设在所述第一主管段的端部，所述扩口段的内径大于所述第一主管段的内径，所述第一段套设在所述扩口段的外周侧。
  5. 根据权利要求4所述的管路组件，其特征在于，所述扩口段包括第一渐变段和大径段，所述第一渐变段连接在所述第一主管段和所述大径段之间，所述第一段套设在所述大径段的外周侧，所述第一渐变段在所述第一钢管轴向的横截面为锥台形。
  6. 根据权利要求5所述的管路组件，其特征在于，所述第一渐变段在所述第一钢管轴向的长度尺寸L2不小于3毫米。
  7. 根据权利要求1至6中任一项所述的管路组件，其特征在于，所述第二钢管包括第二主管段和缩口段，所述缩口段设在所述第二主管段的端部，所述缩口段的内径小于所述第二主管段的内径，所述第二铜套套设在所述缩口段的外周侧。
  8. 根据权利要求7所述的管路组件，其特征在于，所述缩口段包括第二渐变段和小径段，所述第二渐变段连接在所述第二主管段和所述小径段之间，所述第二铜套套设在所述小径段的外周侧，所述第二渐变段在所述第二钢管轴向的横截面为锥台形。
  9. 根据权利要求8所述的管路组件，其特征在于，所述第二渐变段在所述第二钢管轴向的长度尺寸L3不小于3毫米。
  10. 根据权利要求1至9中任一项所述的管路组件，其特征在于，所述第一铜套具有 管壁厚度t1，其中0.5毫米≤t1≤2毫米，所述第二铜套具有管壁厚度t2，其中0.3毫米≤t2≤0.8毫米。
  11. 根据权利要求1至10中任一项所述的管路组件，其特征在于，所述第一钢管和所述第二钢管均为不锈钢管，所述第一钢管与所述第一铜套焊接且所述第二钢管与所述第二铜套焊接。
  12. 一种空调系统，其特征在于，包括如权利要求1至11中任一项所述的管路组件。
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