Compressor shell

Abstract

The invention discloses a gas compressor shell and belongs to the technical field of fluid pumping equipment.The gas compressor shell comprises a tank body, the tank body is provided with a support used for installing a multi-stage compressor and a driving structure, a heat dissipation mechanism is connected between the multi-stage compressor and the tank body, and a housing is installed between the heat dissipation mechanism and the support; the cover shell comprises a middle ring, the middle ring is installed corresponding to the position of the rim, and a three-way shell is installed at the end, close to the multi-stage compressor, of the middle ring. Through the arrangement of the cover shell, the cover shell is of a hollow structure and covers the outer sides of the transmission part of the driving structure and the heat dissipation mechanism, anti-collision protection is carried out, normal work and structural safety of the driving structure and the heat dissipation mechanism are protected, during work, the cover shell forms an air channel to gather airflow to the heat dissipation mechanism, air blowing heat dissipation is carried out on the heat dissipation mechanism, and the heat dissipation efficiency is improved. The compressed air is cooled before being stored, so that the utilization rate of the internal space of the tank body and the equipment safety in the air storage process are ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of fluid pumping equipment, and in particular relates to a compressor casing. Background Art

[0002] A compressor, also known as an air compressor, is a type of air compressor. The structure of an air compressor is similar to that of a water pump. Most air compressors are reciprocating piston type, which can compress and pressurize the air and store it in a high-pressure tank. It is connected to external pneumatic equipment through pipes for pneumatic drive.

[0003] In the Chinese utility model patent with publication number CN215860693U, the air compressor has a motor and a compression member, and the motor compresses the air by driving the piston of the compression member to obtain the required high-pressure gas; In actual use, air will inevitably heat up due to the need for compression, storage and utilization. As the power source of the compressor, the driving part and the compression part will be fixed on the tank body to provide rotational driving force and compression work. The heat generated by the driving part and the compression part will also be transmitted to the air storage tank. The high temperature will affect the air storage capacity of the compressor and may also affect the service life of the equipment's precision instruments and rubber seals. In view of this, the present invention provides a compressor casing. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the disadvantages of the above-mentioned prior art and provide a compressor casing.

[0005] The technical solution adopted to solve the above technical problems is: The compressor casing comprises a tank body, the tank body is provided with a bracket for mounting a multi-stage compressor and a driving structure, a heat dissipation mechanism is connected between the multi-stage compressor and the tank body, and a cover is installed between the heat dissipation mechanism and the bracket; The housing comprises a middle ring, the middle ring is installed at a position corresponding to the wheel ring, a tee shell is installed at one end of the middle ring close to the multi-stage compressor, an end cover is installed at one end of the middle ring away from the multi-stage compressor, an air passage is opened in the tee shell, and the heat dissipation mechanism penetrates the air passage and is placed between the end cover and the tee shell; The driving structure includes a motor, a spoke plate and a rim. The rim adopts an annular structure. The annular array of spoke plates is fixedly installed in the inner wall of the rim. The motor provides a rotational driving force for the multi-stage compressor through the spoke plates and the rim. The rotation of the spoke plates generates an airflow flowing from the air duct to the end cover.

[0006] Furthermore, the air duct passes through the three-way shell and a side wall thereof near the multi-stage compressor is formed with a branch hole one, the air duct passes through the three-way shell and a side wall thereof between the multi-stage compressor and the motor is formed with a branch hole two, a confluence channel is provided at the connection between the branch hole one and the branch hole two, and a circular hole is provided in the three-way shell at a position opposite to the confluence channel and the spoke plate.

[0007] Furthermore, the three-way shell is provided with an arc plate at the first end of the branch hole, and the three-way shell is provided with a cover plate detachably installed at the second end of the branch hole, and a micro hole is provided in the middle of the cover plate.

[0008] Furthermore, the heat dissipation mechanism includes a heat exchanger, which is installed in series between the multi-stage compressor and the tank body, a partition net is installed between the middle ring and the end cover, and the heat exchanger is placed in the end cover facing the spoke plate.

[0009] Furthermore, the heat dissipation mechanism also includes an air inlet pipe 1, an air inlet pipe 2, an air outlet pipe 1 and an air outlet pipe 2. Relay pipes are respectively installed between the air inlet pipe 1 and the air inlet pipe 2 and between the air outlet pipe 1 and the air outlet pipe 2. The air inlet head of the tank body is arranged between the multi-stage compressor and the motor, and the air outlet pipe 2 passes through the three-way shell and is assembled and connected with the air inlet head.

[0010] Furthermore, a pipe sleeve is installed through the side wall of the end cover, and the second air inlet pipe and the first air outlet pipe respectively penetrate the end cover via the pipe sleeves, and the first air inlet pipe and the second air outlet pipe extend into the second branch hole via the first branch hole.

[0011] Furthermore, the multi-stage compressor includes multiple compression components, air filters are installed at the air inlets of the multiple compression components, and series pipes are installed at the air outlets of the compression components. The series pipes are located between the multi-stage compressor and the motor, and the series pipes are assembled and connected through the three-way shell and the intake pipe.

[0012] Furthermore, the three-way shell is designed in a T shape, and a heat insulation board 1 is installed on the side wall of the three-way shell facing the motor, and a heat insulation board 2 is installed on the side wall of the three-way shell facing the multi-stage compressor. The three-way shell is provided with through holes on the rear end surface facing the multi-stage compressor and the rear end surface of the motor.

[0013] Furthermore, the bracket includes a main body, the main body is provided with a support ear located at the cover shell, the support ear is assembled and connected to the cover shell, a vibration-absorbing plate is connected and installed at the end of the support ear, and a pressure block is provided between the vibration-absorbing plate and the outer wall of the cover shell.

[0014] Furthermore, the driving structure also includes a driven wheel, which is connected to the multi-stage compressor. A synchronous belt is sleeved and installed between the driven wheel and the wheel rim, and the distance between the inner wall of the middle ring and the outer wall of the synchronous belt is consistent.

[0015] Through the above technical solution, the beneficial effects of the present invention are as follows: (1) The present invention provides a cover shell, which is installed on an overhead bracket and is arranged outside the synchronous belt of the drive structure and the heat dissipation mechanism to provide anti-collision and separation protection, thereby protecting the normal operation and structural safety of the drive structure and the heat dissipation mechanism. During operation, the cover shell forms an air channel to converge the airflow to the heat dissipation mechanism, and the heat dissipation mechanism is cooled by blowing air. The compressed air is cooled before being stored, thereby ensuring the utilization rate of the internal space of the tank and the safety of the equipment during the gas storage process. (2) The present invention provides a driving structure in which a wheel rim is arranged to drive the synchronous belt to rotate, thereby providing a rotational driving force for the multi-stage compressor. A spoke plate is arranged in the middle of the wheel rim. When providing the rotational driving force, an airflow from front to back is generated. The wheel rim is placed between the outlet of the confluence channel of the air duct and the heat exchanger, and the air in the branch hole 1 and the branch hole 2 is pumped to the position of the heat exchanger to supplement the heat dissipation of the heat exchanger. The air inlet pipe and the air outlet pipe are placed in the air duct, and the interior can be assisted in cooling by the contact between the outer wall of the pipe and the airflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure between the support, the cover, the multi-stage compressor and the driving structure of the present invention; Figure 3 It is a schematic diagram of the positions of the multi-stage compressor, the driving structure and the heat dissipation mechanism of the present invention; Figure 4 It is a structural schematic diagram of the multi-stage compressor, the driving structure and the heat dissipation mechanism of the present invention; Figure 5 It is a schematic diagram of the separation between the housing, the heat dissipation mechanism and the driving structure of the present invention; Figure 6 It is a schematic diagram of the structure between the multi-stage compressor and the heat dissipation mechanism of the present invention; Figure 7 It is a cross-sectional schematic diagram of the housing, the heat dissipation mechanism and the driving structure of the present invention; Figure 8 is a top view schematic diagram of the housing, the heat dissipation mechanism and the driving structure of the present invention; Fig. 9 It is a partial structural schematic diagram of the cover shell of the present invention.

[0017] Figure numerals: 1. tank body; 2. bracket; 21. main body; 22. support ear; 23. anti-vibration plate; 24. pressure block; 3. multi-stage compressor; 31. compression element; 32. air filter; 33. series pipe; 4. cover shell; 41. middle ring; 42. partition net; 43. end cover; 44. pipe sleeve; 45. three-way shell; 46. heat insulation board one; 47. heat insulation board two; 48. cover plate; 49. arc plate; 5. driving structure; 51. motor; 52. spoke plate; 53. wheel rim; 54. driven wheel; 55. synchronous belt; 7. air duct; 71. branch hole one; 72. branch hole two; 73. confluence channel; 8. heat dissipation mechanism; 81. intake pipe one; 82. relay pipe; 83. intake pipe two; 84. outlet pipe one; 85. outlet pipe two; 86. heat exchanger. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] like Figure 1-Figure 9 As shown, this embodiment provides a compressor casing, including a tank body 1. When the compressor is working, the multi-stage compressor 3 compresses the air at normal pressure in multiple stages and stores it in the tank body 1, providing air source power for the pneumatic equipment. Among them, the multi-stage compressor 3 adopts a piston compressor, and the drive structure 5 provides a rotational driving force for the multi-stage compressor 3. In order to ensure the smooth transmission of power, the tank body 1 is provided with a bracket 2 for installing the multi-stage compressor 3 and the drive structure 5, so as to ensure that the multi-stage compressor 3 and the drive structure 5 are in a stable position during operation.

[0020] After the multi-stage compressor 3 compresses the air in multiple stages, the air will heat up rapidly due to the compression work of the multi-stage compressor 3. The high-temperature air is directly stored in the tank 1. The internal pressure of the air in the tank 1 is controlled by the pressure limiting valve. The high-temperature air will affect the gas storage capacity of the tank 1 due to its own expansion. The high temperature of the gas will also cause certain adverse effects on the storage equipment and gas-using equipment during storage and use. Therefore, in this scheme, the temperature of the compressed air is optimized, referring to Figure 2 A heat dissipation mechanism 8 is connected between the multi-stage compressor 3 and the tank body 1. Before the compressed air enters the tank body 1, it will first be cooled by the heat dissipation mechanism 8. At the same time, a cover 4 is installed between the heat dissipation mechanism 8 and the bracket 2. The cover 4 covers the outside of the transmission parts of the drive structure 5, which can play a role in safety protection of the heat dissipation mechanism 8.

[0021] For the housing 4, refer to Figure 2 and Figure 5The cover 4 includes a middle circle 41, which is hollow and through from front to back. The middle circle 41 is installed at the position corresponding to the wheel rim 53. The wheel rim 53 will be driven to rotate. The wheel rim 53 can be surrounded and protected from all sides to avoid direct contact with the rotating wheel rim 53 from the outside during operation. At the same time, an end cover 43 is installed at the end of the middle circle 41 away from the multi-stage compressor 3. The end cover 43 opens to the front and rear ends to form dense air holes. The end cover 43 is connected to the rear end of the middle circle 41 to form a cavity. The end cover 43 surrounds the heat dissipation mechanism 8 and provides an installation position to fix the heat dissipation mechanism 8 to avoid direct collision with the heat dissipation mechanism 8. At the same time, refer to Figure 5 A three-way shell 45 is installed at one end of the middle circle 41 close to the multi-stage compressor 3. The three-way shell 45 is a hollow structure and is installed at the front opening of the middle circle 41. An air passage 7 is opened in the three-way shell 45, and the air passage 7 can be used for air to pass through. Figure 7 The heat dissipation mechanism 8 passes through the air passage 7 and is placed between the end cover 43 and the three-way shell 45, so that the air in the air passage 7 can be blown toward the heat dissipation mechanism 8, thereby improving the heat dissipation efficiency of the heat dissipation mechanism 8; For drive structure 5, refer to Figure 2 and Figure 5 The driving structure 5 includes a motor 51, a spoke plate 52 and a wheel rim 53. The wheel rim 53 adopts an annular structure, and an arc groove is provided on the circumferential outer wall to limit the belt or the transmission chain. The spoke plate 52 is fixedly installed in the annular array on the inner wall of the circumference of the wheel rim 53. The spoke plate 52 supports the wheel rim 53 to ensure that the wheel rim 53 is in a perfect circle and avoids deformation during the transmission process. In addition, the rotating shaft of the motor 51 is coaxially fixed with the center of the annular array of the spoke plate 52. The motor 51 can drive the spoke plate 52 and the wheel rim 53 to rotate. The multi-stage compressor 3 is meshed with the wheel rim 53 to provide a rotational driving force for the multi-stage compressor 3. In the process of compressing the air, the spoke 52, which is tilted with its left end facing forward and its right end facing backward, rotates to generate an airflow from front to back. By optimizing the positions of the air duct 7 and the heat dissipation mechanism 8, the air duct 7 is placed right in front of the spoke 52, and the heat dissipation mechanism 8 is placed in the end cover 43 right behind the spoke 52. At this time, when the spoke 52 rotates, the air will be gathered by the air duct 7 and then blown toward the heat dissipation mechanism 8 to achieve efficient cooling and heat dissipation.

[0022] In a further embodiment, in order to ensure sufficient air flow to the spoke plate 52, the structure of the three-way shell 45 is optimized, referring to Figure 7 and Figure 8The air passage 7 penetrates through the side wall of the three-way shell 45 near the multi-stage compressor 3 to form a branch hole 1 71, the branch hole 1 71 extends horizontally along the rear end surface of the multi-stage compressor 3, and the opening is set on the left side of the multi-stage compressor 3, which is used to attract air in the open space on the left side. At the same time, the air passage 7 penetrates through the side wall of the three-way shell 45 between the multi-stage compressor 3 and the motor 51 to form a branch hole 2 72, which extends horizontally forward and protrudes forward to the front of the multi-stage compressor 3 and the motor 51, which is used to attract air in the open space on the front side. Through the setting of the branch hole 1 71 and the branch hole 2 72, the two air inlets simultaneously intake air. , and avoid the obstruction of the multi-stage compressor 3 and the motor 51, a confluence 73 is provided at the connection between the branch hole 1 71 and the branch hole 2 72, and the two air inlets can provide sufficient air for the confluence 73 to avoid the low air pressure at the position of the spoke 52 due to insufficient air intake, which affects the heat dissipation effect of the pump air. At the same time, a circular hole is opened in the three-way shell 45 at the position opposite to the confluence 73 and the spoke 52. The circular hole is opened in front of the spoke 52, so that the air in the confluence 73 can directly enter the rotating space of the spoke 52. The inner diameter of the circular hole is larger than the outer diameter of the wheel rim 53, which increases the air passage diameter and ensures the pump air volume when the spoke 52 rotates.

[0023] In a further embodiment, in order to improve the heat dissipation efficiency, refer to Figure 3 and Figure 4 The heat dissipation mechanism 8 includes a heat exchanger 86. The heat exchanger 86 adopts a fin-shaped design with equidistantly arranged aluminum fins, which greatly increases the effective contact area with the air. The heat exchanger 86 is installed in series between the multi-stage compressor 3 and the tank body 1. When the high-temperature air flows through the heat exchanger 86, the heat carried will be transferred to the heat exchanger 86 and dispersed into the aluminum fins, and the heat will be fully exchanged and cooled with the outside air. In addition, refer to Figure 5 A partition net 42 is installed between the middle circle 41 and the end cover 43. The transmission parts of the drive structure 5 work in the middle circle 41, and the heat exchanger 86 works in the end cover 43. The middle is separated and protected by the partition net 42 to form two independent spaces. Because the transmission parts of the drive structure 5 rotate at a high speed, the drive structure 5 is prevented from being abnormal or carrying debris to splash onto the heat exchanger 86, thereby ensuring the stable operation of the heat exchanger 86. At the same time, the partition net 42 does not block the smooth passage of air. The heat exchanger 86 is placed in the end cover 43 facing the spoke plate 52. The airflow generated by the spoke plate 52 can directly pass through the partition net 42 to contact the heat exchanger 86. The airflow travel path is short, and the heat exchanger 86 can be blown at a higher speed to perform efficient heat dissipation and cooling.

[0024] In a further embodiment, the heat exchanger 86 is connected in series between the multi-stage compressor 3 and the tank 1 through a pipeline. The specific pipeline configuration is disclosed in detail. Figure 3The heat dissipation mechanism 8 also includes an air inlet pipe 1 81, an air inlet pipe 2 83, an air outlet pipe 1 84 and an air outlet pipe 2 85. The air inlet pipe 1 81, the air inlet pipe 2 83, the air outlet pipe 1 84 and the air outlet pipe 2 85 are made of hard thin-walled copper tubes. The high-temperature air inside can fully exchange heat with the external air using the circumferential outer wall. Among them, the air inlet pipe 1 81 and the air outlet pipe 2 85 are fixedly connected to the multi-stage compressor 3 and the tank body 1, and the air inlet pipe 2 83 and the air outlet pipe 1 84 are fixedly connected to the heat exchanger 86. During operation, the multi-stage compressor 3 and the driving structure 5 will vibrate, and the cover 4 will have disordered Resonance, relay pipes 82 are respectively installed between the air inlet pipe 1 81 and the air inlet pipe 2 83, and between the air outlet pipe 1 84 and the air outlet pipe 2 85. The relay pipe 82 adopts a flexible rubber tube, which can be softly connected to avoid vibration affecting the stability of the connection. At the same time, the air inlet head of the tank body 1 is arranged on the top surface and is located between the multi-stage compressor 3 and the motor 51. The air outlet pipe 2 85 passes through the three-way shell 45 and is assembled and connected between the air inlet head. The air outlet pipe 2 85 extends in the three-way shell 45 and is wrapped and protected by the three-way shell 45. When the multi-stage compressor 3 and the drive structure 5 are inspected and repaired, the air outlet pipe 2 85 is avoided from being damaged.

[0025] In a further embodiment, referring to Figure 5 A pipe sleeve 44 is installed through the side wall of the end cover 43. At the same time, the air inlet pipe 83 and the air outlet pipe 1 84 pass through the end cover 43 through the pipe sleeves 44 respectively. The pipe sleeves 44 are made of rubber material to avoid wear of the copper pipe and improve the stability of long-term use. At the same time, the air inlet pipe 1 81 and the air outlet pipe 2 85 extend to the branch hole 2 72 through the branch hole 1 71. The air inlet pipe 1 81 and the air outlet pipe 2 85 are bent at right angles, with a long overall length and a large outer wall surface area, which are fully in contact with the flowing air in the air duct 7, thereby improving the supplementary cooling effect of the high-temperature air in the air inlet pipe 1 81 and the air outlet pipe 2 85, and ensuring efficient heat dissipation and cooling.

[0026] In a further embodiment, the specific configuration of the multi-stage compressor 3 is disclosed, referring to Figure 4 The multi-stage compressor 3 includes a plurality of compressors 31, which are driven to rotate by the motor 51 and can perform continuous multi-stage compression on the air. At the same time, air filters 32 are installed at the air inlets of the plurality of compressors 31 to ensure the cleanliness of the air in the pipeline. A series pipe 33 is installed at the air outlet of the compressor 31. The series pipe 33 is connected to each compressor 31 in sequence. The series pipe 33 extends to the right and is located between the multi-stage compressor 3 and the motor 51. The series pipe 33 runs through the three-way shell 45 and the intake pipe 81 for assembly connection, and can directly pass through the top surface of the three-way shell 45 to extend into the air duct 7.

[0027] In a further embodiment, a specific configuration of the three-way shell 45 is provided, referring to Figure 5 and Fig. 9, the three-way housing 45 is designed in a T shape. Among them, the rear half of the three-way housing 45 extends horizontally to the left and right and extends forward between the multi-stage compressor 3 and the motor 51. Among them, a first heat insulation plate 46 is installed on the side wall of the three-way housing 45 facing the motor 51, and a second heat insulation plate 47 is installed on the side wall of the three-way housing 45 facing the multi-stage compressor 3. The first heat insulation plate 46 and the second heat insulation plate 47 are made of L-shaped thin plates, which can isolate heat and prevent the heat of the multi-stage compressor 3 and the motor 51 from directly being transmitted to the air passage 7 through the three-way housing 45, ensuring that the air temperature in the air passage 7 is not affected by the temperatures of the multi-stage compressor 3 and the motor 51. At the same time, through holes are opened at the rear end faces of the three-way housing 45 facing the multi-stage compressor 3 and the motor 51, so that the transmission shafts of the multi-stage compressor 3 and the motor 51 can extend into the housing 4 for smooth transmission.

[0028] In a further embodiment, the housing 4 and the罐体 1 are fixedly connected by a bracket 2. For the specific configuration of the bracket 2, refer to Figure 7 and Fig. 9 , the bracket 2 includes a main body 21. The main body 21 is in a U shape with an opening downward and is fixed on the top surface of the罐体 1. The motor 51 and the multi-stage compressor 3 are installed overhead to reduce direct contact with the罐体 1. The bracket 2 can be made of heat-insulating material, or heat insulation plates can be provided on the contact surfaces between the motor 51 and the multi-stage compressor 3 and the bracket 2 to reduce the heat directly transmitted from the motor 51 and the multi-stage compressor 3 to the罐体 1. An ear 22 is installed on the main body 21 at the position of the housing 4. The ear 22 is located at the rear side of the main body 21 and has a vertical screw. Among them, a bolt hole is opened on the bottom surface of the housing 4 and is sleeved outside the screw and fixed by a nut from the inside of the housing 4. At this time, the ear 22 is assembled and connected to the housing 4. And a shock-absorbing plate 23 is connected and installed at the end of the ear 22. The shock-absorbing plate 23 is arranged horizontally, and a pressing block 24 is arranged between the shock-absorbing plate 23 and the outer wall of the housing 4. The vibration of the housing 4 can be alleviated through stable abutment against the housing 4, ensuring the stability of the working space of the heat dissipation mechanism 8.

[0029] In a further embodiment, the specific configuration of the drive structure 5 is disclosed. Refer to Figure 3 , the drive structure 5 further includes a driven wheel 54. Among them, the driven wheel 54 is connected to the multi-stage compressor 3. And a synchronous belt 55 is sleeved between the driven wheel 54 and the rim 53. When the synchronous belt 55 rotates with the rim 53, the distance between the inner circumference of the middle ring 41 and the outer circumference of the synchronous belt 55 is consistent, disturbing the air inside the middle ring 41. The synchronous belt 55 takes part of the air at the lower part of the middle ring 41 to the position of the rim 53 and takes part of the air at the upper part of the middle ring 41 away from the position of the rim 53. Cooperating with the air flow generated by the spoke plate 52, a circulating air flow is generated in the middle ring 41, and part of the air flow generated by the spoke plate 52 can be dissipated to the left part of the end cover 43 to dissipate heat from the second intake pipe 83 and the first exhaust pipe 84, further improving the heat dissipation effect.

[0030] In a further embodiment, referring to Figure 7 and Fig. 9 The three-way shell 45 is provided with an arc plate 49 at the port of the branch hole 1 71. The arc plate 49 overlaps with the air inlet pipe 1 81 and the air outlet pipe 2 85 to provide position limiting protection to prevent the air inlet pipe 1 81 and the air outlet pipe 2 85 from being worn. The three-way shell 45 is provided with a cover plate 48 detachably installed at the port of the branch hole 2 72. The cover plate 48 blocks the port position of the branch hole 2 72 to prevent debris from squeezing into the airway 7. A micropore is provided in the middle of the cover plate 48 to ensure smooth passage of air and play a filtering role. The cover plate 48 is located at the front end of the three-way shell 45 and is directly exposed to the open space for easy cleaning and maintenance.

[0031] The working principle of this embodiment is as follows: The spoke plate 52 and the wheel rim 53 in the driving structure 5 drive the synchronous belt 55 to rotate, thereby driving the multi-stage compressor 3 to compress the air at normal pressure in multiple stages and store it in the tank body 1. A heat dissipation mechanism 8 is connected between the multi-stage compressor 3 and the tank body 1 to cool the air before it enters the tank body 1. The heat exchanger 86 of the heat dissipation mechanism 8 is installed in the end cover 43 directly behind the spoke plate 52. The middle ring 41 of the cover shell 4 and the three-way shell 45 wrap the driven wheel 54, the wheel rim 53 and the synchronous belt 55 of the driving structure 5 to avoid danger caused by direct contact with the outside world. The partition net 42 separates the driving structure 5 and the heat exchanger 86 to prevent the driving structure 5 from damaging the heat exchanger 86. The three-way shell 45 has an air duct 7 built in, and the air will be gathered by the air duct 7 to provide sufficient air to the front of the spoke plate 52, generating a heat dissipation airflow that directly blows the heat exchanger 86. The air duct 7 has a branch hole 1 71 and a branch hole 2 72. The three-way shell 45 can avoid the multi-stage compressor 3 and the motor 51 and communicate with the open space outside for air supply. Cooperating with the heat insulation board 1 46 and the heat insulation board 2 47, the heat of the multi-stage compressor 3 and the motor 51 can be reduced to affect the intake temperature, and sufficient air can be provided to the position of the radial plate 52. The air inlet pipe 1 81 and the air outlet pipe 2 85 of the heat dissipation mechanism 8 are arranged in the air duct 7, and are in contact with the circulating air flow in the air duct 7 to supplement the heat dissipation.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention.

Claims

1. A compressor casing, comprising a tank body (1), wherein the tank body (1) is provided with a bracket (2) for mounting a multi-stage compressor (3) and a drive structure (5), characterized in that: A heat dissipation mechanism (8) is connected between the multi-stage compressor (3) and the tank body (1), and a cover (4) is installed between the heat dissipation mechanism (8) and the bracket (2); The housing (4) comprises a middle ring (41), the middle ring (41) being installed at a position corresponding to the wheel ring (53), a three-way housing (45) being installed at one end of the middle ring (41) close to the multi-stage compressor (3), an end cover (43) being installed at one end of the middle ring (41) away from the multi-stage compressor (3), an air passage (7) being opened in the three-way housing (45), and the heat dissipation mechanism (8) penetrating the air passage (7) and being arranged between the end cover (43) and the three-way housing (45); The driving structure (5) comprises a motor (51), a spoke plate (52) and a wheel rim (53); the wheel rim (53) is an annular structure; an annular array of the spoke plates (52) is fixedly mounted on a circumferential inner wall of the wheel rim (53); the motor (51) provides a rotational driving force for the multi-stage compressor (3) via the spoke plates (52) and the wheel rim (53); the rotation of the spoke plates (52) generates an airflow that flows from the air passage (7) to the end cover (43).

2. The compressor casing according to claim 1, characterized in that: The air passage (7) penetrates the side wall of the three-way shell (45) near the multi-stage compressor (3) to form a first branch hole (71), and the air passage (7) penetrates the side wall of the three-way shell (45) between the multi-stage compressor (3) and the motor (51) to form a second branch hole (72). A confluence channel (73) is provided at the connection between the first branch hole (71) and the second branch hole (72), and a circular hole is provided at a position of the three-way shell (45) directly opposite to the confluence channel (73) and the radial plate (52).

3. The compressor casing according to claim 2, characterized in that: The three-way shell (45) is provided with an arc plate (49) at the end of the first branch hole (71), and the three-way shell (45) is provided with a cover plate (48) detachably mounted at the end of the second branch hole (72), wherein a micro hole is provided in the middle of the cover plate (48).

4. The compressor casing according to claim 1, characterized in that: The heat dissipation mechanism (8) comprises a heat exchanger (86), the heat exchanger (86) being installed in series between the multi-stage compressor (3) and the tank body (1), a partition net (42) being installed between the middle ring (41) and the end cover (43), and the heat exchanger (86) being placed in the end cover (43) at a position facing the radial plate (52).

5. The compressor casing according to claim 2, characterized in that: The heat dissipation mechanism (8) further comprises an air inlet pipe (81), an air inlet pipe (83), an air outlet pipe (84) and an air outlet pipe (85), wherein a relay pipe (82) is installed between the air inlet pipe (81) and the air inlet pipe (83), and between the air outlet pipe (84) and the air outlet pipe (85), respectively. The air inlet head of the tank body (1) is arranged between the multi-stage compressor (3) and the motor (51), and the air outlet pipe (85) passes through the three-way shell (45) and is assembled and connected with the air inlet head.

6. The compressor casing according to claim 5, characterized in that: A pipe sleeve (44) is installed through the side wall of the end cover (43); the second air inlet pipe (83) and the first air outlet pipe (84) respectively penetrate the end cover (43) via the pipe sleeve (44); the first air inlet pipe (81) and the second air outlet pipe (85) extend into the second branch hole (72) via the first branch hole (71).

7. The compressor casing according to claim 5, characterized in that: The multi-stage compressor (3) comprises a plurality of compressors (31), air filters (32) being installed at the air inlets of the plurality of compressors (31), and a series pipe (33) being installed at the air outlets of the compressors (31), the series pipe (33) being located between the multi-stage compressor (3) and the motor (51), and the series pipe (33) being connected by passing through a three-way shell (45) and an air inlet pipe 1 (81).

8. The compressor casing according to claim 1, characterized in that: The three-way shell (45) is designed in a T-shape. A first heat insulation board (46) is installed on the side wall of the three-way shell (45) facing the motor (51). A second heat insulation board (47) is installed on the side wall of the three-way shell (45) facing the multi-stage compressor (3). Through holes are provided on the rear end surface of the three-way shell (45) facing the multi-stage compressor (3) and the rear end surface of the motor (51).

9. The compressor casing according to claim 1, characterized in that: The bracket (2) comprises a main body (21), the main body (21) being provided with a support ear (22) located at the cover shell (4), the support ear (22) being assembled and connected to the cover shell (4), a vibration-proof plate (23) being connected and installed at the end of the support ear (22), and a pressure block (24) being provided between the vibration-proof plate (23) and the outer wall of the cover shell (4).

10. The compressor casing according to claim 1, characterized in that: The driving structure (5) further comprises a driven wheel (54), the driven wheel (54) being connected to the multi-stage compressor (3), a synchronous belt (55) being sleeved and installed between the driven wheel (54) and the wheel rim (53), and the distance between the circumferential inner wall of the middle ring (41) and the circumferential outer wall of the synchronous belt (55) being consistent.

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