WO2021027414A1 - 压缩机用排气管及压缩机 - Google Patents

压缩机用排气管及压缩机 Download PDF

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Publication number
WO2021027414A1
WO2021027414A1 PCT/CN2020/099004 CN2020099004W WO2021027414A1 WO 2021027414 A1 WO2021027414 A1 WO 2021027414A1 CN 2020099004 W CN2020099004 W CN 2020099004W WO 2021027414 A1 WO2021027414 A1 WO 2021027414A1
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Prior art keywords
exhaust pipe
compressor
main body
outer sleeve
exhaust
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PCT/CN2020/099004
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English (en)
French (fr)
Inventor
张治平
龙忠铿
李日华
毕雨时
武晓昆
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珠海格力电器股份有限公司
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Publication of WO2021027414A1 publication Critical patent/WO2021027414A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/06—Silencing
    • F04C29/065—Noise dampening volumes, e.g. muffler chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet

Definitions

  • the present disclosure relates to the technical field of compressors, and in particular to an exhaust pipe for compressors and compressors that effectively reduce noise.
  • the basic working principle of the screw compressor is a process of discharging the sucked working fluid through the screw rotor meshing compression.
  • the high-temperature and high-pressure gaseous working medium in the exhaust stage hits the exhaust pipe and other parts at a high speed to produce great exhaust noise.
  • the thicker seamless steel pipe is used as the raw material to process the exhaust pipe as much as possible, which can alleviate the transmission of part of the exhaust noise.
  • the thickness of the exhaust pipe is often not up to the wall thickness that can reduce the noise.
  • the exhaust pipe of the compressor has a small resistance to airflow noise in the pipe, resulting in large transmission noise.
  • an exhaust pipe for a compressor which includes: a main body with an exhaust passage inside the main body; and an outer sleeve, which is sleeved outside the main body , The outer sleeve and the main body are connected in a sealed manner, and a closed space is formed between the outer sleeve and the main body.
  • the outer casing is a seamless steel tube.
  • the distance that the outer sleeve extends in the axial direction of the exhaust pipe is L, and the diameter of the exhaust passage of the exhaust pipe is D, where the ratio of L:D is greater than 2.
  • the outer sleeve is welded to the main body.
  • the outer sleeve is welded to the main body through a steel plate structure.
  • the air outlet end of the main body portion is provided with a plurality of air outlet holes.
  • the outer sleeve is provided at the intake end of the main body.
  • the exhaust pipe is an exhaust pipe of a screw compressor.
  • a compressor including the above-mentioned exhaust pipe for the compressor.
  • the compressor is a screw compressor.
  • the main body and the outer sleeve form a double-walled structure with a closed space in the middle.
  • Such a structure arrangement can lengthen the noise propagation path on the exhaust pipe wall and reduce the final noise transmitted;
  • the formed hollow confined space allows the noise transmission to switch between different media, resulting in greater sound wave transmission loss, and a more enhanced dissipation of the exhaust noise transmission, which can ultimately effectively reduce the exhaust Exhaust noise transmitted from the pipe position.
  • Fig. 1 is a schematic structural diagram of an exhaust pipe for a compressor according to some embodiments of the present disclosure
  • Fig. 2 is a schematic structural diagram of a compressor exhaust pipe installed on a compressor according to some embodiments of the present disclosure
  • Fig. 3 is a schematic diagram of the noise transmission principle of an exhaust pipe for a compressor provided according to some embodiments of the present disclosure.
  • the exhaust pipe structure is used in the exhaust oil separation stage.
  • the airflow in the exhaust pipe flows at high temperature, high pressure and high speed, which produces a large airflow noise.
  • the airflow noise is transmitted through the exhaust pipe wall and is
  • the inner diameter of the exhaust pipe can be determined under the condition of a certain flow rate.
  • the wall thickness of seamless steel pipes is almost a fixed value, and the wall thickness of seamless steel pipes is often forced to be used only for strength. , But it is far from enough to block exhaust noise.
  • some embodiments of the present disclosure provide an exhaust pipe and a compressor for a compressor that can effectively reduce noise, so as to alleviate the problem that the exhaust pipe of the compressor has a small resistance to airflow noise in the pipe, resulting in large transmission noise.
  • an exhaust pipe for a compressor includes a main body 10 and an outer sleeve 20, and the main body 10 has an exhaust pipe inside. ⁇ Channel 11.
  • the outer sleeve 20 is sleeved on the outside of the main body portion 10, the outer sleeve 20 and the main body portion 10 are hermetically connected, and a sealed space 30 is formed between the outer sleeve 20 and the main body portion 10.
  • the main body 10 and the outer sleeve 20 form a double-walled structure with a closed space 30 in the middle.
  • Such a structure arrangement can lengthen the noise propagation path on the exhaust pipe wall on the one hand, and reduce the final noise transmission.
  • the dissipating effect of the exhaust pipe can finally effectively reduce the exhaust noise transmitted from the exhaust pipe position.
  • the outer sleeve 20 is a seamless steel tube.
  • the outer sleeve 20 is welded to the main body 10.
  • the outer sleeve 20 is welded to the main body 10 through a steel plate structure.
  • the welding spot A shown in FIG. 1 is the welding spot position where the steel plate structure is welded.
  • a plurality of exhaust holes 12 are provided at the air outlet end of the main body 10.
  • the outer sleeve 20 is provided at the intake end of the main body 10, and the setting position of the outer sleeve 20 and the setting position of the exhaust hole 12 are staggered, as shown in FIG. 1, the setting position and the row of the outer sleeve 20
  • the air holes 12 are provided with a distance between the positions.
  • the exhaust pipe is the exhaust pipe of the screw compressor.
  • the distance that the outer sleeve 20 extends in the axial direction of the exhaust pipe is L
  • the diameter of the exhaust passage 11 of the exhaust pipe is D
  • the ratio of L:D is greater than 2.
  • the present disclosure also provides an embodiment of a compressor.
  • the compressor includes the exhaust pipe for the compressor of the above embodiment.
  • the compressor includes a screw compressor.
  • the compressor can adopt a double exhaust pipe structure or a multiple exhaust pipe structure. As shown in Figure 2, the compressor adopts a double exhaust pipe structure. For both exhaust pipes in the double exhaust pipe structure, the above-mentioned embodiment is adopted.
  • the exhaust pipe lengthens the noise propagation path and noise dissipation, and the noise reduction effect is particularly obvious.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

一种有效降噪的压缩机用排气管及压缩机，其中，压缩机用排气管包括：主体部（10），主体部（10）内部具有排气通道（11）；外部套管（20），外部套管（20）套设在主体部（10）的外部，外部套管（20）与主体部（10）密封连接，并且外部套管（20）与主体部（10）之间形成密闭空间，该压缩机的排气管有效地解决了相关技术中的压缩机的排气管对管内气流噪声阻隔力度小，导致传递噪音大的问题。

Description

压缩机用排气管及压缩机
相关申请的交叉引用
本公开是以CN申请号为201910737460.5，申请日为2019年8月9日的申请为基础，并主张其优先权，该CN申请的公开内容在此作为整体引入本公开中。
技术领域
本公开涉及压缩机技术领域，尤其涉及一种有效降噪的压缩机用排气管及压缩机。
背景技术
相关技术中，螺杆压缩机的基本工作原理是将吸入的工质，经过螺杆转子啮合压缩后，排出压缩机的过程。排气阶段的高温高压气态工质高速撞击排气管等零件产生极大地排气噪音。
在相关技术中的多种降低排气噪音的方案中，其中尽可能大的选用壁厚较厚的无缝钢管作为原材料来加工成排气管，可缓解部分排气噪音的传递。但受到所需排气管内径以及国标无缝钢管材料的规格限制，排气管选用的规格厚度往往达不到能够降低噪音的壁厚。
综上所述，相关技术中压缩机的排气管对管内气流噪声阻隔力度小，导致传递噪音大。
发明内容
依据本公开的一些实施例的一个方面，提供了一种压缩机用排气管，其包括：主体部，主体部内部具有排气通道；外部套管，外部套管套设在主体部的外部，外部套管与主体部密封连接，并且外部套管与主体部之间形成密闭空间。
在一些实施例中，外部套管为无缝钢管。
在一些实施例中，外部套管在排气管轴线方向延伸的距离为L，排气管的排气通道的直径为D，其中，L:D的比值大于2。
在一些实施例中，外部套管焊接在主体部上。
在一些实施例中，外部套管通过钢板结构焊接在主体部上。
在一些实施例中，主体部的出气端设置有多个排气孔。
在一些实施例中，外部套管设于主体部的进气端。
在一些实施例中，排气管为螺杆压缩机的排气管。
根据本公开的一些实施例的另一个方面，提供了一种压缩机，其包括上述的压缩机用排气管。
在一些实施例中，压缩机为螺杆压缩机。
在一些实施例中，主体部与外部套管形成了具有中间是密闭空间的双层壁面结构，这样的结构设置，一方面可以加长排气管壁面噪音传播路径，减小最终传递出的噪音；另一方面，形成的中空密闭空间这一结构，使噪声传播在不同介质之间切换，产生较大的声波传递损失，对排气噪音传递进行更加强化的消散作用，最终可有效降低从排气管位置传递出去的排气噪音。
附图说明
图1是根据本公开一些实施例提供的压缩机用排气管的结构示意图；
图2是根据本公开一些实施例提供的压缩机用排气管安装在压缩机上的结构示意图；
图3是根据本公开一些实施例提供的压缩机用排气管的噪音传递原理示意图。
具体实施方式
下面将结合本公开实施例中的附图，对实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本公开的一部分实施例，而不是全部的实施例。基于本公开的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
在本公开的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”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保护范围的限制。
螺杆压缩机中，在排气油分离阶段会使用排气管结构，排气管中的气流高温高压且高速流动，产生较大的气流噪声，气流噪声通过排气管壁传递出来，在排气流速一定的情况下排气管的内径能够确定，而在排气管常用选材中，无缝钢管的壁厚也几乎 为定值，常常被迫选用的无缝钢管材料壁厚仅仅只够强度使用，但对于阻隔排气噪音还远远不够。
基于此，本公开一些实施例提供了一种有效降噪的压缩机用排气管及压缩机，以缓解压缩机的排气管对管内气流噪声阻隔力度小，导致传递噪音大的问题。
参见图1和图2所示，根据本公开的一些实施例，提供了一种压缩机用排气管，压缩机用排气管包括主体部10和外部套管20，主体部10内部具有排气通道11。外部套管20套设在主体部10的外部，外部套管20与主体部10密封连接，并且外部套管20与主体部10之间形成密闭空间30。
主体部10与外部套管20形成了具有中间是密闭空间30的双层壁面结构，这样的结构设置，一方面可以加长排气管壁面噪音传播路径，减小最终传递出的噪音，噪音传播路径可以参见图3所示的箭头方向；另一方面，形成的中空密闭空间30这一结构，使噪声传播在不同介质之间切换，产生较大的声波传递损失，对排气噪音传递进行更加强化的消散作用，最终可有效降低从排气管位置传递出去的排气噪音。
在一些实施例中，外部套管20为无缝钢管。外部套管20焊接在主体部10上。外部套管20通过钢板结构焊接在主体部10上。
在选用设定规格的无缝钢管加工成排气管后，在排气管外径套一层直径规格更大的无缝钢管，形成一段双层壁面的排气管，再将双层壁面的内外侧排气管两端面的空间用钢板补充结构并焊接，形成双层壁间的密闭空间30。其中，图1所示的焊点A是钢板结构进行焊接的焊点位置。
主体部10的出气端设置有多个排气孔12。外部套管20设于主体部10的进气端，外部套管20的设置位置与排气孔12的设置位置是相互错开的，可参见图1所示，外部套管20的设置位置与排气孔12的设置位置之间具有间距。在本实施中，排气管为螺杆压缩机的排气管。
参见图1，外部套管20在排气管轴线方向延伸的距离为L，排气管的排气通道11的直径为D，其中，L:D的比值大于2。在排气结构空间允许的情况下，排气管双层壁的结构更大，密闭空间更大，即图1所示的L与D的比值越大，最终带来的降噪效果更加明显。
本公开还提供了一种压缩机的实施例，参见图2，压缩机包括上述实施例的压缩机用排气管。可选地，压缩机包括螺杆压缩机。
压缩机可采用双排气管结构或者多排气管结构，如图2所示，压缩机采用双排气管结构，对于双排气管结构中的两个排气管均采用上述实施例的排气管，这样加长了噪音传播路径与噪音消散，降噪效果尤为明显。
在本公开的描述中，需要理解的是，使用“第一”、“第二”、“第三”等词语来限定零部件，仅仅是为了便于对上述零部件进行区别，如没有另行声明，上述词语并没有特殊含义，因此不能理解为对本公开保护范围的限制。
最后应当说明的是:以上实施例仅用以说明本公开的技术方案而非对其限制；尽管参照较佳实施例对本公开进行了详细的说明，所属领域的普通技术人员应当理解：依然可以对本公开的具体实施方式进行修改或者对部分技术特征进行等同替换；而不脱离本公开技术方案的精神，其均应涵盖在本公开请求保护的技术方案范围当中。

Claims (9)

  1. 一种压缩机用排气管，包括：
    主体部(10)，所述主体部(10)内部具有排气通道(11)；
    外部套管(20)，所述外部套管(20)套设在所述主体部(10)的外部，所述外部套管(20)与所述主体部(10)密封连接，并且所述外部套管(20)与所述主体部(10)之间形成密闭空间(30)。
  2. 根据权利要求1所述的压缩机用排气管，其中，所述外部套管(20)为无缝钢管。
  3. 根据权利要求1所述的压缩机用排气管，其中，所述外部套管(20)在所述排气管轴线方向延伸的距离为L，所述排气管的排气通道(11)的直径为D，其中，L:D的比值大于2。
  4. 根据权利要求1所述的压缩机用排气管，其中，所述外部套管(20)焊接在所述主体部(10)上。
  5. 根据权利要求4所述的压缩机用排气管，其中，所述外部套管(20)通过钢板结构焊接在所述主体部(10)上。
  6. 根据权利要求1所述的压缩机用排气管，其中，所述主体部(10)的出气端设置有多个排气孔(12)。
  7. 根据权利要求6所述的压缩机用排气管，其中，所述外部套管(20)设于所述主体部(10)的进气端。
  8. 一种压缩机，包括权利要求1-7中任一项所述的压缩机用排气管。
  9. 根据权利要求8所述的压缩机，其中，所述压缩机包括螺杆压缩机。
PCT/CN2020/099004 2019-08-09 2020-06-29 压缩机用排气管及压缩机 WO2021027414A1 (zh)

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CN110425144A (zh) * 2019-08-09 2019-11-08 珠海格力电器股份有限公司 有效降噪的排气管及压缩机
CN112412804B (zh) * 2020-10-13 2022-11-04 珠海格力节能环保制冷技术研究中心有限公司 一种复合形吸气口与排气口消音组件及压缩机

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000130865A (ja) * 1998-10-23 2000-05-12 Hitachi Ltd 冷媒圧縮機及びそれを用いた空気調和装置
CN104895849A (zh) * 2014-03-07 2015-09-09 珠海格力电器股份有限公司 一种制冷设备及其压缩机
CN106286211A (zh) * 2015-05-13 2017-01-04 中南大学 H型小型制冷系统消声器
CN206860455U (zh) * 2017-05-27 2018-01-09 西安庆安制冷设备股份有限公司 一种螺旋结构的排气管及具有该排气管的旋转式压缩机
CN108980049A (zh) * 2018-09-17 2018-12-11 西安交通大学 一种螺杆压缩机气流脉动衰减装置
CN110425144A (zh) * 2019-08-09 2019-11-08 珠海格力电器股份有限公司 有效降噪的排气管及压缩机
CN210423042U (zh) * 2019-08-09 2020-04-28 珠海格力电器股份有限公司 有效降噪的排气管及压缩机

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000130865A (ja) * 1998-10-23 2000-05-12 Hitachi Ltd 冷媒圧縮機及びそれを用いた空気調和装置
CN104895849A (zh) * 2014-03-07 2015-09-09 珠海格力电器股份有限公司 一种制冷设备及其压缩机
CN106286211A (zh) * 2015-05-13 2017-01-04 中南大学 H型小型制冷系统消声器
CN206860455U (zh) * 2017-05-27 2018-01-09 西安庆安制冷设备股份有限公司 一种螺旋结构的排气管及具有该排气管的旋转式压缩机
CN108980049A (zh) * 2018-09-17 2018-12-11 西安交通大学 一种螺杆压缩机气流脉动衰减装置
CN110425144A (zh) * 2019-08-09 2019-11-08 珠海格力电器股份有限公司 有效降噪的排气管及压缩机
CN210423042U (zh) * 2019-08-09 2020-04-28 珠海格力电器股份有限公司 有效降噪的排气管及压缩机

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