CN215927693U

CN215927693U - Air conditioner and compressor thereof

Info

Publication number: CN215927693U
Application number: CN202122308351.7U
Authority: CN
Inventors: 董迎波; 叶文腾; 钟瑞兴; 焦伟俊
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-03-01
Anticipated expiration: 2031-09-23

Abstract

The utility model relates to an air conditioner and a compressor thereof, wherein the compressor comprises: a first stage compression mechanism; a secondary compression mechanism; the cooling mechanism is arranged between the first-stage compression mechanism and the second-stage compression mechanism and used for cooling; the temperature reduction mechanism comprises a connecting pipeline, a heat exchange piece and a mounting seat, a containing cavity is arranged in the mounting seat, the mounting seat is provided with an inlet end and an outlet end, the heat exchange piece is rotatably arranged in the containing cavity, the connecting pipeline is connected to the inlet end and is provided with an acceleration channel communicated with the containing cavity, the first-stage compression mechanism is connected to one side of the connecting pipeline, which is far away from the inlet end, and the second-stage compression mechanism is connected to the outlet end; wherein, the low-speed high-temperature airflow discharged by the first-stage compression mechanism is accelerated to high-speed high-temperature airflow through the accelerating channel, and the high-speed high-temperature airflow enters the containing cavity and drives the heat exchange member to rotate, thereby being converted into low-speed low-temperature airflow which flows into the second-stage compression mechanism. An air conditioner comprises the compressor. The air conditioner and the compressor thereof consume the kinetic energy of the air flow in the compressor to realize pneumatic cooling.

Description

Air conditioner and compressor thereof

Technical Field

The utility model relates to the technical field of compression equipment, in particular to an air conditioner and a compressor thereof.

Background

In the process of compressing gas by the two-stage compressor, the two stages of the two-stage compressor often generate more energy losses due to gas flow friction, secondary flow and the like, the losses exist in the gas flow in the form of heat energy, and the higher the temperature of the gas flow is, the more difficult the gas flow is to compress. At present, interstage gas is compressed mostly by arranging a cooling mechanism, but the cooling mechanism needs to be additionally provided with a power source for driving, and the energy consumption is larger when the gas is cooled.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide an air conditioner and a compressor thereof, aiming at the problem of high energy consumption when the gas is cooled by two-stage compression.

A compressor, comprising:

a first stage compression mechanism;

a secondary compression mechanism;

the cooling mechanism is arranged between the first-stage compression mechanism and the second-stage compression mechanism; the cooling mechanism comprises a connecting pipeline, a heat exchange piece and a mounting seat, a cavity is arranged in the mounting seat and is provided with an inlet end and an outlet end, the heat exchange piece is rotatably arranged in the cavity, the connecting pipeline is connected to the inlet end and is provided with an acceleration channel communicated with the cavity, the first-stage compression mechanism is connected to one side of the connecting pipeline, which is far away from the inlet end, and the second-stage compression mechanism is connected to the outlet end;

the low-speed high-temperature airflow discharged by the first-stage compression mechanism is accelerated into high-speed high-temperature airflow through the accelerating channel, and the high-speed high-temperature airflow enters the cavity and drives the heat exchange piece to rotate, so that the low-speed high-temperature airflow is converted into low-speed low-temperature airflow and flows into the second-stage compression mechanism.

The compressor drives the heat exchange piece to do work by utilizing the kinetic energy generated by the first-stage compression, so that the air flow after the first-stage compression is cooled and then is subjected to the second-stage compression. The pneumatic cooling is realized by consuming the kinetic energy of the air flow in the compressor, no extra energy consumption is needed, and the pneumatic performance and the refrigerating capacity of the compressor are improved.

In one embodiment, the acceleration channel comprises a first channel, a second channel and a third channel, and the first channel, the second channel and the third channel are communicated and have successively decreasing diameters.

In one embodiment, the connection pipeline includes a first pipe section, a second pipe section and a third pipe section which are connected, the first channel is arranged on the first pipe section, the second channel is arranged on the second pipe section, and the third channel is arranged on the third pipe section.

In one embodiment, the first tube segment is removably coupled to the primary compression mechanism and the third tube segment is removably coupled to the mounting block.

In one embodiment, the mounting seat includes a first mounting frame and a second mounting frame which are connected approximately vertically, the third pipe section is detachably connected to the first mounting frame, and the heat exchange member is rotatably connected with the first mounting frame and the second mounting frame respectively.

In one embodiment, the method further comprises at least one of the following steps:

the first mounting frame is provided with an air inlet channel communicated with the accommodating cavity, the air inlet channel is over against the air inlet end of the heat exchange piece, and the diameter of the air inlet channel is smaller than that of the third channel;

the second mounting frame is provided with an air outlet channel communicated with the accommodating cavity, and the air outlet channel is opposite to the exhaust end of the heat exchange piece.

In one embodiment, the heat exchange member includes a cover body and a wheel body, the cover body is covered outside the wheel body, the wheel body is rotatably connected to the first mounting frame, and the cover body is rotatably connected to the second mounting frame.

In one embodiment, the cooling mechanism further includes a first adapter and a second adapter, the first adapter is rotatably connected to the wheel body and the first mounting frame, and the second adapter is rotatably connected to the cover and the second mounting frame.

In one embodiment, the first mounting frame is provided with a first inner cavity, the second mounting frame is provided with a second inner cavity, the first inner cavity and the second inner cavity are enclosed into the accommodating cavity, and a step surface is formed in the second inner cavity to limit the second adaptor.

In one embodiment, the cooling mechanism further comprises a blocking piece and a sealing piece, the blocking piece is covered on one side of the first mounting frame, where the first rotating piece is arranged, and the sealing piece is arranged at the joint of the blocking piece and the first mounting frame.

An air conditioner comprises the compressor.

According to the air conditioner, pneumatic cooling is realized by consuming the kinetic energy of the air flow in the compressor, extra energy consumption is not required, and the pneumatic performance and the refrigerating capacity of the compressor are improved.

Drawings

FIG. 1 is a schematic view of a compressor according to one embodiment;

FIG. 2 is a schematic view of a temperature reducing mechanism in the compressor shown in FIG. 1;

FIG. 3 is an exploded view of the cooling mechanism shown in FIG. 2;

FIG. 4 is a cross-sectional view of the cooling mechanism shown in FIG. 2;

FIG. 5 is a schematic view of a mounting base of the cooling mechanism shown in FIG. 2;

FIG. 6 is a schematic view of an acceleration duct of the cooling mechanism shown in FIG. 2;

fig. 7 is a schematic view of a heat exchange member of the temperature reducing mechanism shown in fig. 2.

Reference numerals:

100. a first stage compression mechanism; 101. an exhaust pipe; 200. a secondary compression mechanism; 201. an air inlet pipe; 300. a cooling mechanism;

310. connecting a pipeline; 311. an acceleration channel; 312. a first channel; 313. a second channel; 314. a third channel; 315. a first tube section; 316. a second tube section; 317. a third tube section; 317a and external threads; 317b and a groove;

320. a heat exchange member; 320a and an air inlet end; 320b, an exhaust end; 321. a wheel body; 322. a cover body; 323. a first mounting portion; 324. a second mounting portion;

330. a mounting seat; 331. a cavity; 332. an inlet end; 333. an outlet end; 334. a containing groove; 335. a first mounting bracket; 335a, an intake passage; 335b, a first inner cavity; 336. a second mounting bracket; 336a and an air outlet channel; 336b, a second lumen; 336c, a step surface;

340. a first transfer member; 350. a second adaptor; 360. a blocking member; 370. and a seal.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 and 2, the compressor in one embodiment includes a first-stage compression mechanism 100, a second-stage compression mechanism 200, and a temperature reduction mechanism 300. The first-stage compression mechanism 100 is used for compressing gas, the second-stage compression mechanism 200 is used for compressing the gas compressed by the first-stage compression mechanism 100 again, and the cooling mechanism 300 is arranged between the first-stage compression mechanism 100 and the second-stage compression mechanism 200 and used for cooling the gas.

Referring to fig. 3 and 4, the cooling mechanism 300 includes a connecting pipe 310, a heat exchanging element 320, and a mounting seat 330. As shown in fig. 5, the mounting base 330 has a cavity 331 therein and has an inlet end 332 and an outlet end 333, and the heat exchange member 320 is rotatably disposed in the cavity 331. As shown in fig. 4, the connecting pipe 310 is connected to the inlet end 332 and is provided with an accelerating passage 311 communicated with the accommodating cavity 331, the first-stage compression mechanism 100 is connected to one side of the connecting pipe 310 far away from the inlet end 332, and the second-stage compression mechanism 200 is connected to the outlet end 333.

The low-speed high-temperature airflow discharged from the first-stage compression mechanism 100 is accelerated to a high-speed high-temperature airflow through the acceleration channel 311, and the high-speed high-temperature airflow enters the cavity 331 and drives the heat exchange member 320 to rotate, so that the high-speed high-temperature airflow is converted into a low-speed low-temperature airflow and flows into the second-stage compression mechanism 200.

It can be understood that, in the two-stage compression process, the higher the temperature of the gas after the first-stage compression is, the more difficult the gas is to be recompressed, and the recompression consumes more energy. In order to reduce energy consumption, the gas after the first-stage compression needs to be cooled, and enters the second-stage compression mechanism 200 to be compressed again after the temperature of the gas is reduced.

Through the arrangement, the kinetic energy generated by the first-stage compression is utilized to drive the heat exchange piece 320 to do work, and the air flow after the first-stage compression is cooled and then is subjected to the second-stage compression. The pneumatic cooling is realized by consuming the kinetic energy of the air flow in the compressor, no extra energy consumption is needed, and the pneumatic performance and the refrigerating capacity of the compressor are improved.

Here, in order to have better heat conduction and cooling performance, the connecting pipe 310, the heat exchanging member 320, and the mounting base 330 are made of metal.

In a specific embodiment, as shown in fig. 1, the discharge pipe 101 of the first-stage compression mechanism 100 is connected to one side of the connection pipe 310, and the intake pipe 201 of the second-stage compression mechanism 200 is connected to the outlet end 333 of the mount 330. The connection between the exhaust pipe 101 of the first-stage compression mechanism 100 and the connecting pipe 310 and the connection between the intake pipe 201 of the second-stage compression mechanism 200 and the mounting seat 330 are sealed to avoid air leakage and additional energy loss.

For example, the exhaust pipe 101 of the first-stage compression mechanism 100 and the connecting pipe 310, and the intake pipe 201 of the second-stage compression mechanism 200 and the outlet end 333 of the mounting seat 330 are all connected by flange structures, and sealing gaskets are arranged at the joints. Through this setting, the dismouting of each part of being convenient for just can guarantee better leakproofness.

Referring to fig. 6, the acceleration channel 311 includes a first channel 312, a second channel 313 and a third channel 314, and the first channel 312, the second channel 313 and the third channel 314 are communicated with each other and have decreasing diameters.

It is understood that, since the diameters of the passages decrease in sequence, the low-speed and high-temperature gas flow discharged from the gas discharge pipe 101 of the first-stage compression mechanism 100 is accelerated while flowing through the first passage 312, the second passage 313, and the third passage 314 in sequence.

In the embodiment shown in fig. 6, the first channel 312 and the third channel 314 are both straight tubular, and the second channel 313 is tapered tubular to facilitate smooth airflow. In other embodiments, the first channel 312, the second channel 313, and the third channel 314 may also be wavy or otherwise irregular.

In the embodiment shown in fig. 6, the connecting pipe 310 includes a first pipe segment 315, a second pipe segment 316 and a third pipe segment 317, and the first pipe segment 315, the second pipe segment 316 and the third pipe segment 317 are connected in sequence.

In this embodiment, the first passage 312 opens into a first pipe section 315, the second passage 313 opens into a second pipe section 316, and the third passage 314 opens into a third pipe section 317. The exhaust 101 of the primary compression mechanism 100 is removably coupled to the first tube segment 315 and the third tube segment 317 is removably coupled to the mounting block 330.

In one embodiment, as shown in fig. 4, the exhaust pipe 101 of the primary compression mechanism 100 is connected to the first pipe segment 315 by a flange structure, and the third pipe segment 317 is connected to the mounting seat 330 by a screw thread, so as to facilitate the assembly and disassembly of the components and ensure better sealing performance.

For example, referring to fig. 6, the third pipe section 317 has an external thread 317a and a groove 317b formed on the outer circumference thereof, and the groove 317b is located at the front end of the external thread 317 a. Referring to fig. 5, the mounting base 330 has a receiving groove 334, and the groove wall has an internal thread matching the external thread 317 a. The third pipe section 317 is at least partially embedded in the receiving groove 334 and is screwed to the mounting seat 330, and the joint between the third pipe section 317 and the mounting seat 330 is further sealed by disposing a sealing ring in the groove 317 b.

In other embodiments, the third pipe segment 317 and the mounting seat 330 can be detachably connected by clamping, plugging and the like.

In this embodiment, the first tube segment 315, the second tube segment 316, and the third tube segment 317 are formed integrally, and have high mechanical strength and good sealing performance. In other embodiments, the first, second, and

third tube segments

315, 316, 317 can also be split structures.

In the embodiment shown in fig. 4, the mounting base 330 includes a first mounting bracket 335 and a second mounting bracket 336, and the first mounting bracket 335 and the second mounting bracket 336 are substantially vertically connected.

In this embodiment, the accommodating groove 334 is disposed on the first mounting frame 335. The third pipe segment 317 is detachably connected to the first mounting bracket 335, the heat exchanging member 320 is rotatably connected to the first mounting bracket 335 and the second mounting bracket 336, and the second mounting bracket 336 is detachably connected to the intake pipe 201 of the second-stage compression mechanism 200.

As shown in fig. 5, the first mounting bracket 335 is provided with an air inlet channel 335a communicated with the cavity 331, the diameter of the air inlet channel 335a is smaller than that of the third channel 314, and the air inlet channel 335a faces the air inlet end 320a of the heat exchanging element 320. The second mounting bracket 336 is provided with an air outlet channel 336a communicated with the accommodating cavity 331, and the air outlet channel 336a is opposite to the air outlet end 320b of the heat exchange member 320 and the air inlet pipe 201 of the two-stage compression mechanism 200.

It can be understood that, with reference to fig. 4 and 5, since the diameters of the first passage 312, the second passage 313, the third passage 314, and the air inlet passage 335a decrease in sequence, the low-speed high-temperature airflow discharged from the exhaust pipe 101 of the first-stage compression mechanism 100 is accelerated when flowing into the first passage 312, the second passage 313, and the third passage 314, and is accelerated again to be converted into the high-speed high-temperature airflow when flowing through the air inlet passage 335 a; the high-speed high-temperature airflow enters the cavity 331 and drives the heat exchanging element 320 to rotate, so as to be converted into low-speed low-temperature airflow which flows into the air inlet pipe 201 of the secondary compression mechanism 200 through the air outlet channel 336 a.

Here, it should be noted that inlet channel 335a extends in a first direction (i.e., X direction shown in fig. 5), and outlet channel 336a extends in a second direction (i.e., Y direction shown in fig. 5) substantially perpendicular to the first direction.

In the embodiment shown in fig. 5, the first mounting bracket 335 is provided with a first inner cavity 335b communicating with the inlet passage 335a, the second mounting bracket 336 is provided with a second inner cavity 336b communicating with the outlet passage 336a, and the first inner cavity 335b and the second inner cavity 336b are enclosed to form a cavity 331.

In this embodiment, the first mounting bracket 335 and the second mounting bracket 336 are separated and detachably connected by a fastener, so that the components can be easily detached and replaced. In other embodiments, the first mounting bracket 335 and the second mounting bracket 336 may also be an integrally formed structure, which has good integrity and high mechanical strength.

In the embodiment shown in fig. 4, the heat exchanging member 320 is rotatably connected to the first mounting bracket 335 and the second mounting bracket 336, respectively.

Specifically, as shown in fig. 7, the heat exchanging element 320 includes a wheel 321 and a cover 322, the cover 322 is fixedly connected to the wheel 321, and the cover 322 is covered outside the wheel 321. The wheel 321 is rotatably connected to the first mounting bracket 335, and the cover 322 is rotatably connected to the second mounting bracket 336.

In a particular embodiment, the heat exchange element 320 is an expansion wheel that is capable of rotating relative to the mounting 330. As shown in fig. 4, when the high-speed high-temperature airflow accelerated by the acceleration passage 311 flows into the cavity 331 of the mounting seat 330, the expansion wheel is driven to rotate to do work, and at this time, the high-speed high-temperature airflow is absorbed by heat and decelerated, and converted into low-speed low-temperature airflow.

In the embodiment shown in fig. 4, the cooling mechanism 300 further includes a first adapter 340 and a second adapter 350, the first adapter 340 is disposed in the first inner cavity 335b, and the second adapter 350 is disposed in the second inner cavity 336 b. The wheel body 321 is rotatably connected to the first mounting frame 335 through a first adapter 340, and the cover body 322 is rotatably connected to the second mounting frame 336 through a second adapter 350.

Specifically, as shown in fig. 7, the first adaptor 340 and the second adaptor 350 are both bearings. The wheel 321 has a first mounting portion 323, and the first connecting element 340 is disposed on the first mounting portion 323 and fixed to the first mounting frame 335. The cover 322 has a second mounting portion 324, and the second adapter 350 is sleeved on the second mounting portion 324 and fixed to the second mounting frame 336. Through this setting, heat exchange member 320 can be in mount pad 330 stable rotation, need not to establish the pivot in addition and hinder the air current and flow, and structural design is simple reasonable.

Further, with reference to fig. 5 and 4, the cavity wall of the second inner cavity 336b is further provided with a step surface 336c, and the step surface 336c is used for limiting the second adaptor 350 and preventing the second adaptor 350 from moving transversely.

Furthermore, as shown in fig. 4, the cooling mechanism 300 further includes a blocking member 360 and a sealing member 370, the blocking member 360 is disposed on the side of the first mounting bracket 335 where the first rotating member 340 is disposed, and the sealing member 370 is disposed at the connection position of the blocking member 360 and the first mounting bracket 335. By this arrangement, it is ensured that no air flow leaks at the connection of the first mounting bracket 335 and the first adapter 340.

In particular embodiments, seal 370 is a gasket or a seal ring. The block piece 360 is detachably connected to the first mounting frame 335, for example, by fasteners, threads, or snap-fit.

Referring to fig. 1 and 2, an air conditioner in an embodiment includes the compressor.

In the present embodiment, the compressor is a centrifugal compressor. In other embodiments, the compressor may also be an axial compressor, a mixed flow compressor, a reciprocating compressor, and other types of compressors.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A compressor, comprising:

a first stage compression mechanism;

a secondary compression mechanism;

2. The compressor of claim 1, wherein the acceleration passage includes a first passage, a second passage, and a third passage, the first passage, the second passage, and the third passage being in communication and decreasing diameter in order.

3. The compressor of claim 2, wherein the connecting conduit comprises a first conduit section, a second conduit section, and a third conduit section connected together, the first passage opening in the first conduit section, the second passage opening in the second conduit section, and the third passage opening in the third conduit section.

4. The compressor of claim 3, wherein the first tube segment is removably coupled to the first stage compression mechanism and the third tube segment is removably coupled to the mounting block.

5. The compressor of claim 3, wherein the mounting block includes a first mounting block and a second mounting block that are substantially vertically connected, the third tube segment is detachably connected to the first mounting block, and the heat exchanger is rotatably connected to the first mounting block and the second mounting block, respectively.

6. The compressor of claim 5, further comprising at least one of:

7. The compressor of claim 5, wherein the heat exchange member includes a cover and a wheel body, the cover is covered outside the wheel body, the wheel body is rotatably connected to the first mounting frame, and the cover is rotatably connected to the second mounting frame.

8. The compressor of claim 7, wherein the cooling mechanism further comprises a first adapter and a second adapter, the first adapter is rotatably connected to the wheel body and the first mounting bracket, and the second adapter is rotatably connected to the cover and the second mounting bracket.

9. The compressor of claim 8, wherein the first mounting bracket is provided with a first inner cavity, the second mounting bracket is provided with a second inner cavity, the first inner cavity and the second inner cavity enclose the receiving cavity, and the second inner cavity is formed with a step surface for limiting the second adaptor.

10. The compressor of claim 8, wherein the cooling mechanism further comprises a blocking member and a sealing member, the blocking member is covered on one side of the first mounting frame where the first adapter is disposed, and the sealing member is disposed at a joint of the blocking member and the first mounting frame.

11. An air conditioner characterized by comprising a compressor according to any one of claims 1 to 10.