WO2021174792A1 - 卧式涡旋压缩机 - Google Patents

卧式涡旋压缩机 Download PDF

Info

Publication number
WO2021174792A1
WO2021174792A1 PCT/CN2020/113128 CN2020113128W WO2021174792A1 WO 2021174792 A1 WO2021174792 A1 WO 2021174792A1 CN 2020113128 W CN2020113128 W CN 2020113128W WO 2021174792 A1 WO2021174792 A1 WO 2021174792A1
Authority
WO
WIPO (PCT)
Prior art keywords
end plate
fixed scroll
back pressure
channel
outlet
Prior art date
Application number
PCT/CN2020/113128
Other languages
English (en)
French (fr)
Inventor
吴凌云
黄幼玲
Original Assignee
艾默生环境优化技术(苏州)有限公司
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 艾默生环境优化技术(苏州)有限公司 filed Critical 艾默生环境优化技术(苏州)有限公司
Publication of WO2021174792A1 publication Critical patent/WO2021174792A1/zh

Links

Images

Classifications

    • 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
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • 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
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • 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

Definitions

  • the present disclosure relates to a horizontal scroll compressor.
  • Horizontal scroll compressors are generally suitable for mobile or stationary air conditioners, heat pumps and refrigerators.
  • a commonly used horizontal scroll compressor is a floating fixed scroll scroll compressor, which realizes the floating seal of the fixed scroll components through a back pressure cavity.
  • the working fluid in the medium pressure cavity enters the back pressure cavity through the drainage channel to provide the axial sealing force of the fixed scroll component.
  • the working fluid will drive part of the lubricating oil between the fixed scroll component and the movable scroll component from the intermediate pressure cavity to the back pressure cavity through the drainage channel.
  • the inlet and outlet of the drainage channel are of equal height, which will cause the lubricating oil entering through the drainage channel to accumulate at the bottom of the back pressure cavity.
  • An object of one or more embodiments of the present disclosure is to provide a horizontal scroll compressor that can avoid accumulation of lubricating oil at the bottom of the back pressure cavity.
  • a horizontal scroll compressor comprising: a fixed scroll part, the fixed scroll part includes a fixed scroll end plate formed on the fixed scroll A spiral blade on one side of the scroll end plate and a recess formed on the other side of the fixed scroll end plate, in which a sealing assembly is provided to form a back pressure cavity; a movable scroll member, the movable scroll part
  • the scroll component includes a movable scroll end plate, a hub formed on one side of the movable scroll end plate, and a spiral blade formed on the other side of the movable scroll end plate, wherein the fixed scroll
  • the blades of the component and the blades of the movable scroll component are joined to each other in the axial direction to form a series of compression chambers for compressing the working fluid;
  • a communication channel is provided in the fixed scroll end plate, so
  • the back pressure chamber is in communication with at least one of the compression chambers via the communication passage, and the communication passage has an inlet communicating with at least one of the compression chambers
  • the outlet of the channel is lower than the inlet in the vertical direction, the working fluid introduced through the channel can easily blow away the lubricating oil deposited on the bottom of the back pressure cavity and take it away from the bottom of the back pressure cavity, thereby preventing the lubricating oil at the bottom of the back pressure cavity Deposit, thereby improving the reliability of the compressor.
  • At least one of the compression chambers includes a medium pressure chamber, and the inlet is in communication with the medium pressure chamber.
  • the outlet of the channel is adjacent to the lowest position in the vertical direction of the inner circumferential surface of the back pressure cavity.
  • the communication passage includes an inclined passage section linearly extending toward the back pressure cavity.
  • the communication channel includes at least two linearly extending channel sections, wherein two adjacent channel sections have different slopes.
  • the fixed scroll end plate is composed of an integral piece;
  • the communication channel includes a first channel section, a second channel section, and a third channel section that communicate sequentially from the inlet to the outlet, wherein
  • the second passage section extends vertically to the outer peripheral surface of the fixed scroll end plate, and a plug is provided in a portion of the second passage section close to the outer peripheral surface.
  • the fixed scroll end plate is composed of a cover plate and a main body end plate, a sealing layer is provided between the cover plate and the main body end plate, and the recess is provided on one side of the cover plate
  • the communication channel includes a first channel section, a second channel section, and a third channel section that communicate sequentially from the inlet to the outlet, wherein the second channel section is in the sealing layer extend. So as to facilitate the processing and manufacturing of the channel.
  • the first channel section and the third channel section extend in a horizontal direction.
  • the first channel section extends in a horizontal direction
  • the third channel section extends obliquely toward the back pressure cavity
  • a chamfer is formed at the outlet to guide the working fluid toward the lowest position in the vertical direction of the inner peripheral surface of the back pressure chamber.
  • Fig. 1 shows a cross-sectional view of a horizontal scroll compressor according to a first embodiment of the present disclosure.
  • Fig. 2 shows a partial enlarged view of the horizontal scroll compressor in Fig. 1.
  • Fig. 3 shows a cross-sectional view of a fixed scroll component according to a second embodiment of the present disclosure.
  • Fig. 4 shows a cross-sectional view of a fixed scroll component according to a third embodiment of the present disclosure.
  • Fig. 5 shows a cross-sectional view of a fixed scroll component according to a fourth embodiment of the present disclosure.
  • Fig. 6 shows a cross-sectional view of a fixed scroll component according to a fifth embodiment of the present disclosure.
  • Fig. 7 shows a cross-sectional view of a fixed scroll component according to a sixth embodiment of the present disclosure.
  • FIG. 8 shows a cross-sectional view of a horizontal scroll compressor according to a comparative example of the present disclosure.
  • Fig. 9 shows a partial enlarged view of the horizontal scroll compressor in Fig. 8.
  • vertical direction refers to a direction perpendicular to the horizontal plane.
  • inclined refers to a direction at a certain angle with respect to the vertical direction.
  • the outlet is lower than the inlet in the vertical direction” referred to herein means that the lowest position of the outlet is lower than the lowest position of the inlet in the vertical direction.
  • bottom of the back pressure cavity refers to the lowest part of the inner peripheral surface of the back pressure cavity in the vertical direction.
  • Fig. 1 shows a cross-sectional view of a horizontal scroll compressor according to a first embodiment of the present disclosure.
  • the horizontal scroll compressor 100 (hereinafter sometimes referred to as a compressor) generally includes a casing 110.
  • the housing 110 may include a substantially cylindrical body 111, a left end cover 112 provided at one end of the body 111, a right end cover 114 provided at the other end of the body 111, and a right end cover 114 provided between the left end cover 112 and the body 111 to separate the compressor housing
  • the internal space of the body is divided into partition plates 116 on the high-pressure side and the low-pressure side.
  • the space between the partition plate 116 and the left end cover 112 constitutes the high pressure side, and the space between the partition plate 116, the body 111 and the right end cover 114 constitutes the low pressure side.
  • a motor 120 is provided in the housing 110, and a drive shaft 130 is provided in the motor 120 to drive a compression mechanism composed of a fixed scroll member 150 and a movable scroll member 160.
  • the movable scroll member 160 includes a movable scroll end plate 164, a hub portion 162 formed on one side of the movable scroll end plate 164, and a spiral blade 166 formed on the other side of the movable scroll end plate 164.
  • the fixed scroll member 150 includes a fixed scroll end plate 154, a spiral blade 156 formed on one side of the fixed scroll end plate 154, and a recess 158 formed on the other side of the fixed scroll end plate 154.
  • An exhaust port 153 is formed at a substantially central position of the fixed scroll end plate 154.
  • a series of compression chambers C1, C2, and C3 for compressing the working fluid are formed between the spiral blades 156 of the fixed scroll component 150 and the spiral blades 166 of the movable scroll component 160. Among them, the radially outermost compression chamber C3 is at suction pressure, and the radially innermost compression chamber C1 is at exhaust pressure.
  • the compression chamber C2 in the middle is located between the suction pressure and the discharge pressure, so it is also called an intermediate pressure chamber.
  • the movable scroll part 160 will rotate in translation relative to the fixed scroll part 150 (that is, the central axis of the movable scroll part 160 rotates around the central axis of the fixed scroll part 150, but the movable scroll part 160 It does not rotate around its own central axis) to achieve compression of the working fluid containing lubricating oil (hereinafter referred to as “working fluid” for short).
  • working fluid the working fluid containing lubricating oil
  • a sealing assembly S is provided in the recess 158 of the fixed scroll component 150 to form a back pressure chamber BC that provides back pressure to the movable scroll component 150.
  • the back pressure chamber BC is in fluid communication with one of a series of compression chambers C1, C2, C3 via a communication passage 170 formed in the fixed scroll end plate 154 to introduce the working fluid in the compression chamber to the back pressure chamber BC middle.
  • the recess 158 is in fluid communication with the compression chamber C2 in the middle via the communication passage 170 described above.
  • Fig. 2 shows a partial enlarged view of the horizontal scroll compressor in Fig. 1.
  • the communication passage 170 has an inlet 174 and an outlet 175.
  • the inlet 174 of the communication channel 170 communicates with the compression chamber C2
  • the outlet 175 of the communication channel 170 communicates with the back pressure chamber BC
  • the outlet 175 is lower than the inlet 174 in the vertical direction, so that the working fluid of the intermediate pressure chamber faces the back pressure through the communication channel 170
  • the bottom of the cavity BC is blown into the back pressure cavity BC.
  • the communication passage 170 includes a first passage section 171, a second passage section 172, and a third passage section 173.
  • the first passage section 171 extends horizontally from the inlet 174 and communicates with the second passage section 172.
  • the second channel section 172 extends vertically.
  • the second passage section 172 extends to the outer peripheral surface of the fixed scroll end plate 154, and is provided in the second passage section 172 close to the outer peripheral surface of the fixed scroll end plate 154 There is a plug 176 to avoid leakage of working fluid.
  • the third passage section 171 extends horizontally from the second passage section 172 to the outlet 175.
  • the first channel section 171 and the second channel section 172 form a certain angle
  • the second channel section 172 and the third channel section 173 form a certain angle.
  • a chamfer is formed at the outlet 175 to guide the working fluid toward the lowest position in the vertical direction of the inner peripheral surface of the back pressure chamber BC.
  • FIG. 8 shows a cross-sectional view of a horizontal scroll compressor according to a comparative example of the present disclosure.
  • Fig. 9 shows a partial enlarged view of the horizontal scroll compressor 100' in Fig. 8. It can be seen from Figures 8 and 9 that the inlet 174' of the communication channel 170' is in communication with the compression chamber C2, and the outlet 175' of the communication channel 170' is in communication with the back pressure chamber BC'.
  • the back pressure chamber BC' includes a first recess 158' and a second recess 159'.
  • the communication channel 170' extends horizontally from the inlet 174' to the outlet 175', and the inlet 174' and the outlet 175' have the same height.
  • the configuration of the communication passage 170' will cause the lubricating oil contained in the working fluid blown in along the communication passage 170' to accumulate at the bottom of the back pressure chamber BC'. Since the lubricating oil accumulates at the bottom of the back pressure chamber BC' and cannot return to the oil sump, the oil circulation rate is reduced and the reliability of the compressor is thereby reduced.
  • the outlet 175 of the communication passage 170 is lower than the inlet 174 in the vertical direction, the communication The working fluid introduced by the passage 170 easily blows away the lubricating oil deposited on the bottom of the back pressure cavity BC and takes it away from the bottom of the back pressure cavity BC, thereby preventing the lubricating oil from depositing at the bottom of the back pressure cavity BC, thereby improving the reliability of the compressor.
  • FIG. 3 shows a cross-sectional view of the fixed scroll member 250 according to the second embodiment of the present disclosure.
  • the communication passage 270 has an inlet 274 communicating with the compression chamber C2 and an outlet 275 communicating with the back pressure chamber BC.
  • the communication passage 270 includes an inclined passage section 277 linearly extending toward the back pressure chamber BC, so that the outlet 275 of the communication passage 270 is lower than the inlet 274 in the vertical direction.
  • the communication channel 270 is an inclined channel section 277 extending from the inlet 274 to the outlet 275 as a whole.
  • the communication passage 270 may also include passage sections of other shapes that communicate with the inclined passage section 277.
  • the other structure of the fixed scroll member 250 is the same as the structure of the fixed scroll member 150 in the first embodiment.
  • FIG. 4 shows a cross-sectional view of the fixed scroll member 350 according to the third embodiment of the present disclosure.
  • the fixed scroll member 350 has a split structure having a main body portion 352 and a cover plate 351.
  • the main body 352 includes a main body end plate 3521.
  • the fixed scroll end plate 354 of the fixed scroll component 350 is composed of a main body end plate 3521 and a cover plate 351 arranged in parallel.
  • a sealing layer 355 is provided between the cover plate 351 and the main body end plate 3521.
  • the sealing layer 355 is a gasket with sealing performance such as rubber or polytetrafluoroethylene.
  • the back pressure chamber BC is formed in the cover plate 351.
  • the inlet 374 of the communication channel 370 communicates with the compression chamber C2
  • the outlet 375 of the communication channel 370 communicates with the back pressure chamber BC
  • the outlet 375 is lower than the inlet 374 in the vertical direction.
  • the communication channel 370 includes a first channel section 371, a second channel section 372, and a third channel section 373 that sequentially extend from the compression chamber C2 to the back pressure chamber.
  • the first passage section 371 extends horizontally from the inlet 374 in the main body 352 and communicates with the second passage section 372.
  • the second channel section 372 is provided in the sealing layer 355 to extend vertically.
  • the third channel section 373 communicates with the second channel section 372 in the cover plate 351 and extends horizontally to the outlet 375.
  • the second channel section 372 may also be provided in the cover plate 351 or in the main body end plate 3521 of the main body 352.
  • the other structure of the fixed scroll member 350 is the same as the structure of the fixed scroll member 150 in the first embodiment.
  • Fig. 5 shows a cross-sectional view of a fixed scroll component according to a fourth embodiment of the present disclosure.
  • the fixed scroll member 450 has a split structure having a main body 452 and a cover plate 451.
  • the main body 452 includes a main body end plate 4521.
  • the fixed scroll end plate 454 of the fixed scroll component 450 is composed of a main body end plate 4521 and a cover plate 451 arranged in parallel.
  • a sealing layer 455 is provided between the cover plate 451 and the end plate 4521 of the main body.
  • the sealing layer 455 is a gasket with sealing performance such as rubber or polytetrafluoroethylene.
  • the back pressure chamber BC is formed in the cover plate 451.
  • the inlet 474 of the communication passage 470 communicates with the compression chamber C2, the outlet 475 of the communication passage 470 communicates with the back pressure chamber BC, and the outlet 475 is lower than the inlet 474 in the vertical direction.
  • the communication passage 470 includes a first passage section 471, a second passage section 472, and a third passage section 473 that sequentially extend from the compression chamber C2 to the back pressure chamber BC.
  • the first channel section 471 extends horizontally from the inlet 474 in the main body end plate 4521 and communicates with the second channel section 472.
  • the second channel section 472 is provided in the sealing layer 455 to extend vertically.
  • the third channel section 473 communicates with the second channel section 472 in the cover plate 451 and linearly extends to the outlet 475 toward the back pressure chamber BC.
  • the second channel section 472 may also be provided in the cover plate 451 or the main body end plate 4521 of the main body 452.
  • the other structure of the fixed scroll member 450 is the same as the structure of the fixed scroll
  • Fig. 6 shows a cross-sectional view of a fixed scroll component according to a fifth embodiment of the present disclosure.
  • the fixed scroll member 550 has a split structure having a main body portion 552 and a cover plate 551.
  • the main body 552 includes a main body end plate 5521.
  • the fixed scroll end plate 554 of the fixed scroll component 550 is composed of a main body end plate 5521 and a cover plate 551 arranged in parallel.
  • a sealing layer 555 is provided between the cover plate 551 and the end plate 5521 of the main body.
  • the sealing layer 555 is a gasket with sealing performance such as rubber or polytetrafluoroethylene.
  • the back pressure chamber BC is formed in the cover plate 551.
  • the inlet 574 of the communication channel 570 communicates with the compression chamber C2
  • the outlet 575 of the communication channel 570 communicates with the back pressure chamber BC
  • the outlet 575 is lower than the inlet 574 in the vertical direction.
  • the communication passage 570 is an inclined passage linearly extending toward the back pressure chamber BC as a whole.
  • the other structure of the fixed scroll member 550 is the same as the structure of the fixed scroll member 150 in the first embodiment.
  • Fig. 7 shows a cross-sectional view of a fixed scroll component according to a sixth embodiment of the present disclosure.
  • the structure of the communication passage 670 is the same as that of the communication passage 170 of the first embodiment, and the outlet 675 is located at the lowest position in the vertical direction adjacent to the inner peripheral surface of the back pressure chamber BC.
  • the other structure of the fixed scroll member 650 is the same as the structure of the fixed scroll member 150 in the first embodiment.
  • the present disclosure also includes other shapes of channels in which the outlet of the channel is lower than the inlet in the vertical direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Abstract

一种卧式涡旋压缩机（100），包括：定涡旋部件（150），定涡旋部件（150）包括定涡旋端板（154）、形成在定涡旋端板（154）一侧的螺旋状的叶片（156）以及形成在定涡旋端板（154）另一侧的凹部（158），在凹部（158）中设置有密封组件（S）以形成背压腔（BC）；动涡旋部件（160），动涡旋部件（160）包括动涡旋端板（164）、形成在动涡旋端板（164）一侧的毂部（162）以及形成在动涡旋端板（164）另一侧的螺旋状的叶片（166），其中，定涡旋部件（150）的叶片（156）与动涡旋部件（160）的叶片（166）在轴向上彼此接合形成一系列对工作流体进行压缩的压缩腔（C1、C2、C3）；连通通道（170），连通通道（170）设置在定涡旋端板（154）中，背压腔（BC）经由连通通道（170）与至少一个压缩腔（C1、C2、C3）连通，连通通道（170）具有与至少一个压缩腔（C1、C2、C3）连通的入口（174）和与背压腔（BC）连通的出口（175），出口（175）在竖向方向上低于入口（174）。

Description

卧式涡旋压缩机
本申请要求以下中国专利申请的优先权：于2020年3月3日提交中国专利局的申请号为202020250796.7、发明创造名称为“卧式涡旋压缩机”的中国专利申请。该专利申请的全部内容通过引用结合在本申请中。
技术领域
本公开涉及一种卧式涡旋压缩机。
背景技术
本部分的内容仅提供了与本公开相关的背景信息，其可能并不构成现有技术。
卧式涡旋压缩机通常适用于移动式或固定式空调、热泵以及制冷机。常用的一种卧式涡旋压缩机为浮动定涡旋式涡旋压缩机，其通过背压腔来实现定涡旋部件的浮动密封。其中，中压腔的工作流体通过引流通道进入背压腔，以提供定涡旋部件的轴向密封力。并且工作流体会带动在定涡旋部件和动涡旋部件之间的部分润滑油通过引流通道从中压腔进入背压腔。通常，在浮动定涡旋式涡旋压缩机中，引流通道的入口和出口等高，会导致通过引流通道进入的润滑油堆积在背压腔底部。
因此，需要一种能够避免背压腔底部堆积润滑油的卧式涡旋压缩机。
发明内容
本公开的一个或多个实施方式的一个目的是提供一种能够避免背压腔底部堆积润滑油的卧式涡旋压缩机。
根据本公开一个方面，提供了一种卧式涡旋压缩机，所述卧式涡旋压缩机包括：定涡旋部件，所述定涡旋部件包括定涡旋端板、形成在所述定涡旋端板一侧的螺旋状的叶片以及形成在所述定涡旋端板另一侧的凹部，在所述凹部中设置有密封组件以形成背压腔；动涡旋部件，所述动涡旋部件包括动涡旋端板、形成在所述动涡旋端板一侧的毂部以及形成在所述动涡旋端板另一侧的螺旋状的叶片，其中，所述定涡旋部件的叶片与所述动涡旋部件的叶片在轴向上 彼此接合形成一系列对工作流体进行压缩的压缩腔；连通通道，所述连通通道设置在在所述定涡旋端板中，所述背压腔经由所述连通通道而与至少一个所述压缩腔连通，所述连通通道具有与至少一个所述压缩腔连通的入口和与所述背压腔连通的出口，所述出口在竖向方向上低于所述入口。由于通道的出口在竖向方向低于入口，而使经由通道引入的工作流体容易将沉积在背压腔底部的润滑油吹散并带离背压腔底部，从而防止背压腔底部的润滑油沉积，从而提高了压缩机的可靠性。
优选地，至少一个所述压缩腔包括中压腔，所述入口与所述中压腔连通。
优选地，所述通道的出口邻近所述背压腔的内周面在竖向方向上最低的位置处。
优选地，所述连通通道包括朝向背压腔线性地延伸的倾斜通道部段。
优选地，所述连通通道包括至少两个线性地延伸的通道部段，其中相邻的两个通道部段具有不同的斜率。
优选地，所述定涡旋端板由一体件构成；所述连通通道包括从所述入口到所述出口依次连通的第一通道部段、第二通道部段以及第三通道部段，其中，所述第二通道部段竖向延伸至所述定涡旋端板的外周面，并且在所述第二通道部段的靠近所述外周面的部分中设置有堵头。
优选地，所述定涡旋端板由盖板与主体部端板构成，所述盖板与所述主体部端板之间设置有密封层，所述盖板的一侧设置有所述凹部；所述连通通道包括从所述入口到所述出口依次连通的第一通道部段、第二通道部段以及第三通道部段，其中，所述第二通道部段在所述密封层中延伸。从而方便通道的加工制造。
优选地，所述第一通道部段与所述第三通道部段沿水平方向延伸。
优选地，所述第一通道部段沿水平方向延伸，所述第三通道部段朝向所述背压腔倾斜地延伸。
优选地，在所述出口处形成有将所述工作流体朝向所述背压腔的内周面在竖向方向上最低的位置引导的倒角。
附图说明
以下将参照附图仅以示例方式描述本公开的实施方式，在附图中，相同 的特征或部件采用相同的附图标记来表示且附图不一定按比例绘制，并且在附图中：
图1示出了根据本公开的第一实施方式的卧式涡旋压缩机的截面图。
图2示出了图1中的卧式涡旋压缩机的局部放大图。
图3示出了根据本公开的第二实施方式的定涡旋部件的截面图。
图4示出了根据本公开的第三实施方式的定涡旋部件的截面图。
图5示出了根据本公开的第四实施方式的定涡旋部件的截面图。
图6示出了根据本公开的第五实施方式的定涡旋部件的截面图。
图7示出了根据本公开的第六实施方式的定涡旋部件的截面图。
图8示出了根据本公开的对比示例的卧式涡旋压缩机的截面图。
图9示出了图8中的卧式涡旋压缩机的局部放大图。
具体实施方式
下文的描述本质上仅是示例性的而并非意图限制本公开、应用及用途。应当理解，在所有这些附图中，相似的附图标记指示相同的或相似的零件及特征。各个附图仅示意性地表示了本公开的实施方式的构思和原理，并不一定示出了本公开各个实施方式的具体尺寸及其比例，在特定的附图或图中的特定部分可能采用夸张的方式来图示本公开各个实施方式的相关细节或结构。
本文中所涉及的术语“竖向方向”是指与水平面垂直的方向。本文中所涉及的术语“倾斜”是指相对于竖向方向成一定角度的方向。本文中所涉及的术语“出口在竖向方向上低于入口”是指出口的最低位置在竖向方向上低于入口的最低位置。本文中所涉及的术语“背压腔底部”是指背压腔的内周面在竖向方向上最低的部分。
图1示出了根据本公开的第一实施方式的卧式涡旋压缩机的截面图。如图1所示，卧式涡旋压缩机100(下文中有时也会称为压缩机)一般包括壳体110。壳体110可以包括大致圆筒形的本体111、设置在本体111一端的左端盖112、设置在本体111另一端的右端盖114以及设置在左端盖112与本体111之间以将压缩机的壳体的内部空间分隔成高压侧和低压侧的分隔板116。分隔板116与左端盖112之间的空间构成高压侧，而分隔板116、本体111和右端盖114之间的空间构成低压侧。壳体110中设置有马达120，马达120中设置有驱动 轴130以驱动由定涡旋部件150和动涡旋部件160构成的压缩机构。动涡旋部件160包括动涡旋端板164、形成在动涡旋端板164一侧的毂部162以及形成在动涡旋端板164另一侧的螺旋状的叶片166。定涡旋部件150包括定涡旋端板154、形成在定涡旋端板154一侧的螺旋状的叶片156以及形成在定涡旋端板154另一侧的凹部158。在定涡旋端板154的大致中央位置处形成有排气口153。在定涡旋部件150的螺旋状的叶片156与动涡旋部件160的螺旋状的叶片166之间形成一系列对工作流体进行压缩的的压缩腔C1、C2和C3。其中，径向最外侧的压缩腔C3处于吸气压力，径向最内侧的压缩腔C1处于排气压力。中间的压缩腔C2处于吸气压力与排气压力之间，从而也被称之为中压腔。通过马达120的驱动，动涡旋部件160将相对于定涡旋部件150平动转动(即，动涡旋部件160的中心轴线绕定涡旋部件150的中心轴线旋转，但是动涡旋部件160本身不会绕自身的中心轴线旋转)以实现对含有润滑油的工作流体(下文中简称为“工作流体”)的压缩。经过定涡旋部件150和动涡旋部件160压缩后的工作流体通过排气口153排出到高压侧。在定涡旋部件150的凹部158中设置有密封组件S以形成为动涡旋部件150提供背压的背压腔BC。背压腔BC经由形成在定涡旋端板154中的连通通道170与一系列压缩腔C1、C2、C3中的一个压缩腔流体连通以将该压缩腔中的工作流体引入至背压腔BC中。优选地，凹部158经由上述连通通道170与中间的压缩腔C2流体连通。
图2示出了图1中的卧式涡旋压缩机的局部放大图。如图2所示，连通通道170具有入口174和出口175。连通通道170的入口174与压缩腔C2连通，连通通道170的出口175与背压腔BC连通，出口175在竖向方向低于入口174，使得中压腔的工作流体经由连通通道170朝向背压腔BC底部吹入背压腔BC中。在图2的示例中，连通通道170包括第一通道部段171、第二通道部段172以及第三通道部段173。其中，第一通道部段171从入口174水平延伸且与第二通道部段172连通。第二通道部段172竖向延伸。为了便于制造，在图示的示例中，第二通道部段172延伸至定涡旋端板154的外周面，并且在第二通道部段172中靠近定涡旋端板154的外周面处设置有堵头176，以避免工作流体泄露。第三通道部段171从第二通道部段172水平延伸至出口175。可选地，第一通道部段171与第二通道部段172成一定角度，第二通道部段172与第三通道部段173成一定角度。可选地，在出口175处形成有将工作流体朝向背压 腔BC的内周面在竖向方向上最低的位置引导的倒角。
图8示出了根据本公开的对比示例的卧式涡旋压缩机的截面图。图9示出了图8中的卧式涡旋压缩机100’的局部放大图。由图8、图9可知，连通通道170’的入口174’与压缩腔C2连通，连通通道170’的出口175’与背压腔BC连通’。背压腔BC’包括第一凹部158’和第二凹部159’。连通通道170’从入口174’水平延伸至出口175’，入口174’与出口175’等高。该连通通道170’的构型会导致沿连通通道170’吹入的工作流体中含有的润滑油积聚在背压腔BC’底部。由于润滑油积聚在背压腔BC’底部而不能返回至油池中，从而降低油循环率并由此降低压缩机的可靠性。
与图8、图9所示的对比示例相比，在根据本公开第一实施方式的卧式压缩机100中，由于连通通道170的出口175在竖向方向低于入口174，而使经由连通通道170引入的工作流体容易将沉积在背压腔BC底部的润滑油吹散并带离背压腔BC底部，从而防止背压腔BC底部的润滑油沉积，从而提高了压缩机的可靠性。
图3示出了根据本公开的第二实施方式的定涡旋部件250的截面图。在第二实施方式中，连通通道270具有与压缩腔C2连通的入口274和与背压腔BC连通的出口275。此外，在图3的示例中，连通通道270包括朝向背压腔BC线性地延伸的倾斜通道部段277，使得连通通道270的出口275在竖向方向低于入口274。优选地，连通通道270整体上为从入口274延伸至出口275的倾斜通道部段277。连通通道270也可以包括与倾斜通道部段277相连通的其他形状的通道部段。定涡旋部件250的其他结构与第一实施方式中的定涡旋部件150的结构相同。
图4示出了根据本公开的第三实施方式的定涡旋部件350的截面图。定涡旋部件350为具有主体部352和盖板351的分体式结构。主体部352包括主体部端板3521。定涡旋部件350的定涡旋端板354由平行布置的主体部端板3521和盖板351构成。
盖板351和主体部端板3521之间设置有密封层355。优选地，密封层355为橡胶、聚四氟乙烯等具有密封性能的垫片。背压腔BC形成在盖板351中。连通通道370的入口374连通压缩腔C2，连通通道370的出口375连通背压腔BC，出口375在竖向方向低于入口374。连通通道370包括从压缩腔C2 至背压腔依次延伸的第一通道部段371、第二通道部段372以及第三通道部段373。其中，第一通道部段371在主体部352中从入口374水平延伸且与第二通道部段372连通。第二通道部段372设置在密封层355中竖向延伸。第三通道部段373在盖板351中与第二通道部段372连通且水平延伸直至出口375。
在替代性示实施方式中，第二通道部段372也可设置在盖板351中或主体部352的主体部端板3521中。定涡旋部件350的其他结构与第一实施方式中的定涡旋部件150的结构相同。
图5示出了根据本公开的第四实施方式的定涡旋部件的截面图。定涡旋部件450为具有主体部452和盖板451的分体式结构。主体部452包括主体部端板4521。定涡旋部件450的定涡旋端板454由平行布置的主体部端板4521和盖板451构成。盖板451和主体部端板4521之间设置有密封层455。优选地，密封层455为橡胶、聚四氟乙烯等具有密封性能的垫片。背压腔BC形成在盖板451中。连通通道470的入口474连通压缩腔C2，连通通道470的出口475连通背压腔BC，出口475在竖向方向低于入口474。连通通道470包括从压缩腔C2至背压腔BC依次延伸的第一通道部段471、第二通道部段472以及第三通道部段473。其中，第一通道部段471在主体部端板4521中从入口474水平延伸且与第二通道部段472连通。第二通道部段472设置在密封层455中竖向延伸。第三通道部段473在盖板451中与第二通道部段472连通且朝向背压腔BC线性地延伸直至出口475。在替代性示实施方式中，第二通道部段472也可设置在盖板451中或主体部452的主体部端板4521中。定涡旋部件450的其他结构与第一实施方式中的定涡旋部件150的结构相同。
图6示出了根据本公开的第五实施方式的定涡旋部件的截面图。定涡旋部件550为具有主体部552和盖板551的分体式结构。主体部552包括主体部端板5521。定涡旋部件550的定涡旋端板554由平行布置的主体部端板5521和盖板551构成。盖板551和主体部端板5521之间设置有密封层555。优选地，密封层555为橡胶、聚四氟乙烯等具有密封性能的垫片。背压腔BC形成在盖板551中。连通通道570的入口574连通压缩腔C2，通570的出口575连通背压腔BC，出口575在竖向方向低于入口574。连通通道570整体为朝向背压腔BC线性地延伸的倾斜形通道。定涡旋部件550的其他结构与第一实施方式中的定涡旋部件150的结构相同。
图7出了根据本公开的第六实施方式的定涡旋部件的截面图。连通通道670的结构与第一实施方式的连通通道170的结构相同，出口675位于邻近背压腔BC的内周面在竖向方向上最低的位置处。定涡旋部件650的其他结构与第一实施方式中的定涡旋部件150的结构相同。
本公开还包括使通道的出口在竖向方向低于入口的其他形状的通道。
尽管在此已详细描述本公开的各种实施方式，但是应该理解本公开并不局限于这里详细描述和示出的具体实施方式，在不偏离本公开的实质和范围的情况下可由本领域的技术人员实现其它的变型和变体。所有这些变型和变体都落入本公开的范围内。而且，所有在此描述的构件都可以由其他技术性上等同的构件来代替。

Claims (10)

  1. 一种卧式涡旋压缩机，所述卧式涡旋压缩机包括：
    定涡旋部件，所述定涡旋部件包括定涡旋端板、形成在所述定涡旋端板一侧的螺旋状的叶片以及形成在所述定涡旋端板另一侧的凹部，在所述凹部中设置有密封组件以形成背压腔；
    动涡旋部件，所述动涡旋部件包括动涡旋端板、形成在所述动涡旋端板一侧的毂部以及形成在所述动涡旋端板另一侧的螺旋状的叶片，其中，所述定涡旋部件的叶片与所述动涡旋部件的叶片在轴向上彼此接合形成一系列对工作流体进行压缩的压缩腔；
    连通通道，所述连通通道设置在在所述定涡旋端板中，所述背压腔经由所述连通通道而与至少一个所述压缩腔连通，其特征在于，
    所述连通通道具有与至少一个所述压缩腔连通的入口和与所述背压腔连通的出口，所述出口在竖向方向上低于所述入口。
  2. 根据权利要求1所述的卧式涡旋压缩机，其特征在于，至少一个所述压缩腔包括中压腔，所述入口与所述中压腔连通。
  3. 根据权利要求1所述的卧式涡旋压缩机，其特征在于，所述通道的出口邻近所述背压腔的内周面在竖向方向上最低的位置处。
  4. 根据权利要求1-3中任一项所述的卧式涡旋压缩机，其特征在于，所述连通通道包括朝向背压腔线性地延伸的倾斜通道部段。
  5. 根据权利要求1-3中任一项所述的卧式涡旋压缩机，其特征在于，所述连通通道包括至少两个线性地延伸的通道部段，其中相邻的两个通道部段具有不同的斜率。
  6. 根据权利要求5所述的卧式涡旋压缩机，其特征在于，
    所述定涡旋端板由一体件构成；
    所述连通通道包括从所述入口到所述出口依次连通的第一通道部段、第二通道部段以及第三通道部段，其中，所述第二通道部段竖向延伸至所述定涡旋端板的外周面，并且在所述第二通道部段的靠近所述外周面的部分中设置有堵头。
  7. 根据权利要求5所述的卧式涡旋压缩机，其特征在于，
    所述定涡旋端板由盖板与主体部端板构成，所述盖板与所述主体部端板之间设置有密封层，所述盖板的一侧设置有所述凹部；
    所述连通通道包括从所述入口到所述出口依次连通的第一通道部段、第二通道部段以及第三通道部段，其中，所述第二通道部段在所述密封层中延伸。
  8. 根据权利要求6或7所述的卧式涡旋压缩机，其特征在于，所述第一通道部段与所述第三通道部段沿水平方向延伸。
  9. 根据权利要求6或7所述的卧式涡旋压缩机，其特征在于，所述第一通道部段沿水平方向延伸，所述第三通道部段朝向所述背压腔倾斜地延伸。
  10. 根据权利要求8所述的卧式涡旋压缩机，其特征在于，在所述出口处形成有将所述工作流体朝向所述背压腔的内周面在竖向方向上最低的位置引导的倒角。
PCT/CN2020/113128 2020-03-03 2020-09-03 卧式涡旋压缩机 WO2021174792A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202020250796.7 2020-03-03
CN202020250796.7U CN211950847U (zh) 2020-03-03 2020-03-03 卧式涡旋压缩机

Publications (1)

Publication Number Publication Date
WO2021174792A1 true WO2021174792A1 (zh) 2021-09-10

Family

ID=73189119

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/113128 WO2021174792A1 (zh) 2020-03-03 2020-09-03 卧式涡旋压缩机

Country Status (2)

Country Link
CN (1) CN211950847U (zh)
WO (1) WO2021174792A1 (zh)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008144669A (ja) * 2006-12-11 2008-06-26 Hitachi Appliances Inc スクロール圧縮機およびそれを搭載した冷凍サイクル
CN203412767U (zh) * 2013-08-21 2014-01-29 艾默生环境优化技术(苏州)有限公司 涡旋压缩机以及制冷/热泵系统
CN108869284A (zh) * 2018-08-29 2018-11-23 珠海格力节能环保制冷技术研究中心有限公司 涡旋压缩机及具有其的车辆

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008144669A (ja) * 2006-12-11 2008-06-26 Hitachi Appliances Inc スクロール圧縮機およびそれを搭載した冷凍サイクル
CN203412767U (zh) * 2013-08-21 2014-01-29 艾默生环境优化技术(苏州)有限公司 涡旋压缩机以及制冷/热泵系统
CN108869284A (zh) * 2018-08-29 2018-11-23 珠海格力节能环保制冷技术研究中心有限公司 涡旋压缩机及具有其的车辆

Also Published As

Publication number Publication date
CN211950847U (zh) 2020-11-17

Similar Documents

Publication Publication Date Title
US7226280B1 (en) Roots vacuum pump
KR102370499B1 (ko) 로터리 압축기
AU2005312690A1 (en) Compressor
US10844856B2 (en) Scroll compressor
WO2021174792A1 (zh) 卧式涡旋压缩机
US7556485B2 (en) Rotary compressor with reduced refrigeration gas leaks during compression while preventing seizure
US4498853A (en) Vane-type compressor
US11933302B2 (en) Rotary compressor
US11746783B2 (en) Rotary compressor
CN108425845A (zh) 一种涡旋压缩机
KR102201409B1 (ko) 로터리 압축기
JP6257806B2 (ja) 多気筒密閉型圧縮機
JP2993197B2 (ja) 斜板式圧縮機
JP5363486B2 (ja) ロータリ圧縮機
JPH0217195Y2 (zh)
CN214787978U (zh) 用于涡旋压缩机的定涡旋部件和涡旋压缩机
EP2857688B1 (en) Rotary compressor
KR102370523B1 (ko) 로터리 압축기
WO2021203639A1 (zh) 压缩机构及涡旋压缩机
KR20240074140A (ko) 플랫 머플러를 구비한 로터리 압축기
KR960010645B1 (ko) 사판식 압축기
CN115163485A (zh) 用于涡旋压缩机的定涡旋部件和涡旋压缩机
KR102080624B1 (ko) 사판식 압축기
CN114542469A (zh) 旋转式压缩机及制冷设备
KR20230164810A (ko) 스크롤 압축기

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20922863

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20922863

Country of ref document: EP

Kind code of ref document: A1