Double-suction-port compressor with distribution connector

Abstract

The utility model discloses a double-suction-port compressor with a distribution connector. The double-suction-port compressor comprises a shell, a compressor body and a distribution connector, the compression part comprises a movable vortex and a static vortex; the motor is arranged in the shell and located on the lower side of the compression part; the air inlet assembly comprises a first air suction port located between the motor and the compression part; the first air suction port is located on the lower side of the motor, the second air suction port is located on the lower side of the motor, the first air suction port and the second air suction port are connected with an air inlet pipe, and a distribution part is arranged in the air inlet pipe and used for distributing air flow entering the first air suction port and the second air suction port. The compressor has the advantages that the first air suction port, the second air suction port and the distribution piece are arranged, inlet air is reasonably distributed, liquid impact on the compression part is reduced, the motor is cooled, and the service life of the whole compressor is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to a double-suction compressor with a distribution joint. Background Art

[0002] In a low-pressure cavity compressor, the compressor suction circuit plays the role of transporting working fluids, cooling the motor, and returning oil. The layout of the suction pipeline has a huge impact on motor cooling and oil return. The compressor suction port in the prior art is arranged at the upper part of the compressor, away from the bottom oil surface, which reduces the pump oil rate and the risk of liquid hammer, but the motor on the lower side is not cooled enough, and the motor is prone to overheating and failure; the suction port is arranged at the lower part of the compressor, which fully cools the motor, but it is easy to suck liquid refrigerant into the oil pool, dilute the lubricating oil, cause poor lubrication and compressor liquid hammer, and reduce the life of the compressor. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a double-suction port compressor with a distribution joint, which reduces liquid hammer and allows the motor to be fully cooled, thereby extending the service life of the compressor.

[0004] Specifically, the utility model discloses a double-suction compressor with a distribution joint, comprising:

[0005] case;

[0006] A compression section, including a moving scroll and a stationary scroll;

[0007] A motor is arranged in the housing and located below the compression part;

[0008] The air intake assembly includes: a first air intake port, located between the motor and the compression part; a second air intake port, located at the lower side of the motor, the first air intake port and the second air intake port are connected with an air intake pipe, and a distribution member is arranged in the air intake pipe for distributing the airflow entering the first air intake port and the second air intake port.

[0009] The benefit of adopting the above technical solution is that, by providing the first air intake port, the second air intake port and the distribution member, the intake air is reasonably distributed, the liquid hammer on the compression part is reduced, the motor is cooled, and the service life of the entire compressor is effectively extended.

[0010] Furthermore, the distribution member includes: a block and a diverter, the block is arranged on the upper side of the diverter, an air inlet pipe is arranged on the side of the block and connected to the first air inlet, and the lower side of the diverter is connected to the second air inlet.

[0011] The benefit of adopting the above technical solution is that after the gas enters, a part of it enters the first air inlet after being blocked by the block, and a part of it passes through the block and the diverter into the second air inlet, thereby realizing the reasonable distribution of the liquid entering the first air inlet and the second air inlet.

[0012] Furthermore, the upper surface of the stopper is a hemispherical surface, and a plurality of circular hole channels are opened in the middle and on the side walls.

[0013] The advantage of adopting the above technical solution is that after the mixed gas enters, it first impacts the block. The spherical surface on the upper side of the block can reduce the impact, and the circular hole channel can also allow the mixed gas to pass through.

[0014] Furthermore, the diverter comprises a main body, which is a cylindrical member, and a plurality of diverter plates are evenly arranged along the outer side of the main body.

[0015] The benefit of adopting the above technical solution is that the setting of the diverter plate plays a role of diverter and guide, so that a part of the gas passes through the diverter plate into the second air intake port to cool the motor.

[0016] Furthermore, the distribution component also includes a connecting shell, which has a first connecting port, a second connecting port and a third connecting port, and the second connecting port and the third connecting port are respectively connected to the first air intake port and the second air intake port through an air intake pipe.

[0017] The benefit of adopting the above technical solution is that the connection shell is provided to facilitate the installation of the intake pipe. The first air inlet is used for air intake, which enters the first air intake port and the second air intake port respectively after diversion. The upper gas directly enters the compression part for compression, and the lower gas passes through the motor to cool the motor before being compressed, thereby reducing liquid hammer and facilitating the cooling of the motor.

[0018] Furthermore, the stopper and the diverter are connected via a spring.

[0019] The benefit of adopting the above technical solution is that the spring supports the block. When the amount of gas entering is too large, the gas impacts the block and compresses the spring. At this time, more air enters the first air intake port, which speeds up the compression speed. During normal air intake, the block is in a suitable position to distribute the airflow reasonably.

[0020] Furthermore, the motor includes a main shaft, a mover and a stator, the mover is connected to the main shaft, and a gap is left between the mover and the stator.

[0021] The advantage of adopting the above technical solution is that a gap is provided between the mover and the stator, and the gas passing through the second air intake port passes through the gap to take away the heat generated by the operation of the motor, thereby cooling the motor and effectively extending the service life of the motor.

[0022] Furthermore, a silent cover is provided on the upper side of the static vortex, an air vent is provided on the silent cover, and an air outlet is provided on the upper side of the shell.

[0023] The benefit of adopting the above technical solution is that the provision of the silent cover reduces noise, and at the same time the compressed gas is discharged through the air intake port on the upper side, completing the gas compression.

[0024] Furthermore, the stator is connected to the inner wall of the shell through upper and lower fixed blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required to be used in the embodiments or the description of the prior art will be briefly introduced below.

[0026] Figure 1 This is a schematic diagram of the overall structure of a double suction port compressor with a distribution joint of the utility model.

[0027] Figure 2 This is a schematic diagram of the utility model distribution parts

[0028] The reference numerals in the accompanying drawings are as follows:

[0029] Shell 1; compression part 2; movable scroll 21; static scroll 22; silent cover 23; vent 231; motor 3; main shaft 31; mover 32; stator 33; fixing block 34; first air intake port 4; second air intake port 5; air inlet pipe 6; distribution member 7; block 71; diverter member 72; diverter plate 721; connecting shell 73; first connecting port 731; second connecting port 732; third connecting port 733. DETAILED DESCRIPTION

[0030] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0031] like Figure 1-2 As shown, the utility model discloses a double suction port compressor with a distribution joint, comprising:

[0032] Shell 1;

[0033] The compression part 2 includes a movable scroll 21 and a stationary scroll 22;

[0034] The motor 3 is arranged in the housing 1 and located at the lower side of the compression part 2;

[0035] The air intake assembly includes: a first air intake port 4, located between the motor 3 and the compression part 2; a second air intake port 5, located at the lower side of the motor 3, the first air intake port 4 and the second air intake port 5 are connected with an air intake pipe 6, and a distribution component 7 is arranged in the air intake pipe 6 for distributing the airflow entering the first air intake port 4 and the second air intake port 5.

[0036] The benefit of adopting the above technical solution is that by setting the first air intake port 4 and the second air intake port 5 and the distribution member 7, the air intake position is reasonably distributed, the liquid hammer on the compression part 2 is reduced, the motor 3 is cooled, and the service life of the entire compressor is effectively extended.

[0037] In some embodiments, the distribution member 7 includes: a block 71 and a diverter 72, the block 71 is arranged on the upper side of the diverter 72, and an air inlet pipe 6 is arranged on the side to connect with the first air inlet 4, and the lower side of the diverter 72 is also connected with the second air inlet 5 through the air inlet pipe 6. The first air inlet 4 and the second air inlet 5 are opened on the side of the shell 1, and a first connecting member and a second connecting member are arranged. The first connecting member and the second connecting member facilitate the connection of the first air inlet 4, the second air inlet 5 and the air inlet pipe 6, which is convenient for installation.

[0038] After the gas enters the compressor, part of the gas is blocked by the block 71 to enter the first air inlet 4, and part of the gas passes through the block 71 and the diverter 72 to enter the second air inlet 5, thereby realizing the reasonable distribution of the liquid entering the first air inlet 4 and the second air inlet 5.

[0039] Furthermore, the upper surface of the stopper 71 is a hemispherical surface, and a plurality of circular hole channels are opened in the middle and on the side wall, and the hemispherical surface of the stopper 71 is arranged toward the direction in which the gas enters.

[0040] The advantage of adopting the above technical solution is that after the mixed gas enters, it first impacts the block 71. The spherical surface on the upper side of the block 71 can reduce the impact. At the same time, the circular hole channel can also allow the mixed gas to pass through to achieve gas distribution.

[0041] In some embodiments, the diverter 72 includes a main body, which is a cylindrical member. A plurality of diverter plates 721 are evenly arranged along the outer side of the main body. The cylindrical member plays a fixing role. A downward guiding slope is arranged on the upper side of the diverter plate 721 to reduce the pressure on the slope.

[0042] The disposition of the diverter plate 721 plays a role of diverting and guiding, so that a part of the gas passes through the diverter plate 721 and enters the second air intake port 5 to cool the motor 3.

[0043] Furthermore, the distribution component 7 also includes a connecting shell 73, which has a first connecting port 731, a second connecting port 732 and a third connecting port 733. The second connecting port 732 and the third connecting port 733 are respectively connected to the first air intake port 4 and the second air intake port 5 through the air intake pipe 6. The second connecting port 732 and the third connecting port 733 are provided with connecting grooves inside. During installation, the air intake pipe 6 is inserted into the installation groove for installation.

[0044] The benefit of adopting the above technical solution is that the connection shell 73 is provided to facilitate the installation of the intake pipe 6. The first air inlet is used for air intake, and after diversion, it enters the first air intake port 4 and the second air intake port 5 respectively. The upper gas directly enters the compression part 2 for compression, and the lower gas passes through the motor 3 to cool the motor 3 and then is compressed, thereby reducing liquid hammer and facilitating the cooling of the motor 3.

[0045] Furthermore, the block 71 and the flow divider 72 are connected by a spring. The spring supports the block 71. When the amount of gas entering is too large, the gas impacts the block 71 and compresses the spring. At this time, more air enters the first air inlet 4, which speeds up the compression speed. During normal air intake, the block 71 is in a suitable position to reasonably distribute the airflow.

[0046] In some embodiments, the motor 3 includes a main shaft 31, a mover 32 and a stator 33. The mover 32 is connected to the main shaft 31, and a gap is left between the mover 32 and the stator 33. The upper side of the main shaft 31 is connected to the movable scroll 21, which drives the movable scroll 21 to rotate to achieve gas compression.

[0047] A gap is provided between the mover 32 and the stator 33 , and the gas passing through the second air inlet 5 passes through the gap to take away the heat generated by the operation of the motor 3 , thereby cooling the motor 3 and effectively extending the service life of the motor 3 .

[0048] Furthermore, a silent cover 23 is provided on the upper side of the static scroll, a vent 231 is provided on the silent cover 23, an air outlet is provided on the upper side of the housing 1, and the stator 33 is connected to the inner wall of the housing 1 through upper and lower fixed blocks 34. The silent cover 23 is provided to reduce noise, and the compressed gas is discharged through the upper air intake port to complete the gas compression.

[0049] The present application sets up dual air intake ports for simultaneous air intake, and performs diversion through the distribution member 7, which reduces the liquid hammer on the compression part 2 compared with the setting of a single air intake port, and cools the motor 3 at the same time, thereby extending the service life of the entire compressor.

[0050] For ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the utility model, which all fall within the protection scope of the utility model.

Claims

1. A double suction port compressor with a distribution joint, characterized in that: include: Housing (1); A compression part (2), comprising a movable scroll (21) and a stationary scroll (22); A motor (3) is arranged in the housing (1) and is located below the compression part (2); The air intake assembly comprises: a first air intake port (4) located between the motor (3) and the compression part (2); The second air intake port (5) is located at the lower side of the motor (3); the first air intake port (4) and the second air intake port (5) are connected to an air intake pipe (6); a distribution member (7) is provided in the air intake pipe (6) for distributing the air flow entering the first air intake port (4) and the second air intake port (5).

2. The double suction port compressor with a distribution joint according to claim 1, characterized in that: The distribution member (7) comprises: a block (71) and a diverter member (72); the block (71) is arranged on the upper side of the diverter member (72); an air inlet pipe (6) is arranged on the side of the block (71) and is connected to the first air intake port (4); and the lower side of the diverter member (72) is connected to the second air intake port (5).

3. The double suction port compressor with a distribution joint according to claim 2, characterized in that: The upper surface of the stopper (71) is a hemispherical surface, and a plurality of circular hole channels are provided in the middle and on the side walls.

4. The double suction port compressor with a distribution joint according to claim 2, characterized in that: The flow dividing member (72) comprises a main body, which is a cylindrical member, and a plurality of flow dividing plates (721) are evenly arranged along the outer side of the main body.

5. The double suction port compressor with a distribution joint according to claim 2, characterized in that: The distribution member (7) further comprises a connecting shell (73), wherein the connecting shell (73) has a first connecting port (731), a second connecting port (732) and a third connecting port (733), wherein the second connecting port (732) and the third connecting port (733) are respectively connected to the first air intake port (4) and the second air intake port (5) via an air intake pipe (6).

6. The double suction port compressor with a distribution joint according to claim 2, characterized in that: The stopper (71) and the flow divider (72) are connected via a spring.

7. The double suction port compressor with a distribution joint according to claim 1, characterized in that: The motor (3) comprises a main shaft (31), a mover (32) and a stator (33); the mover (32) is connected to the main shaft (31), and a gap is left between the mover (32) and the stator (33).

8. The double suction port compressor with a distribution joint according to claim 1, characterized in that: A silent cover (23) is arranged on the upper side of the static scroll (22), a vent (231) is arranged on the silent cover (23), and an air outlet is arranged on the upper side of the shell (1).

9. The double suction port compressor with a distribution joint according to claim 7, characterized in that: The stator (33) is connected to the inner wall of the housing (1) via upper and lower fixed blocks (34).

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