Roots screw composite compressor

Abstract

The utility model discloses a Roots screw composite compressor, and belongs to the field of compressors. The compressor mainly comprises a compressor assembly, the compressor assembly is sleeved with a protection assembly, the compressor assembly comprises a machine body, an air inlet pipe is fixedly installed on the machine body, air outlet pipes are fixedly installed at the two ends of the machine body, a cavity is formed in the machine body, and two sets of rotors close to each other are installed in an inner bearing of the machine body; the protective assembly comprises a protective cover, the protective cover can be matched with the outer side of the compressor body in shape and structure, according to the Roots screw composite compressor, the protective assembly is arranged, and the protective cover has an elastic effect, so that the impact force of the outside on the compressor assembly can be effectively buffered, and damage to parts such as the compressor body caused by accidental collision is reduced; and meanwhile, vibration generated by operation of the compressor assembly can be absorbed, fatigue damage of vibration to all parts such as a rotor is reduced, and the service life of equipment is prolonged.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of compressors, in particular to a Roots screw composite compressor. BACKGROUND

[0002] In modern industrial production, Roots screw composite compressors are widely used in petroleum chemical industry, food processing, pharmaceutical industry and many other fields due to their high compression performance. However, there are some problems in the design and application of the compressor at present.

[0003] When the Roots screw composite compressor is running, it will face various complex working conditions. On the one hand, the vibration generated in the working process will not only cause fatigue damage to the parts of the equipment itself, reduce the service life of the equipment, but also produce noise, affect the working environment. On the other hand, in some production scenes, the compressor may be subjected to accidental impact from the outside, such as collision when heavy objects are moved in the workshop, which is easy to damage the shell and internal precision parts of the compressor, cause equipment failure, and thus affect the continuity of the production process, increase the maintenance cost and downtime loss of the enterprise.

[0004] Therefore, it is necessary to provide a Roots screw composite compressor to solve the above problems. CONTENT OF THE INVENTION

[0005] Based on the above problems existing in the prior art, the problem to be solved by the application is to provide a Roots screw composite compressor, which can protect the outside of the compressor, thereby solving the problems of external bumping and impact.

[0006] The technical scheme adopted by the application to solve the technical problems is: a Roots screw composite compressor, comprising a compressor assembly, a protection assembly is sleeved on the compressor assembly, the compressor assembly comprises a machine body, an air inlet pipe is fixedly installed on the machine body, air outlet pipes are fixedly installed at both ends of the machine body, a cavity is formed in the inside of the machine body, two groups of rotors close to each other are installed on the bearings in the inside of the machine body, the protection assembly comprises a protection cover, the protection cover can be matched with the shape structure of the outside of the machine body, the protection cover itself has elasticity, and the protection cover can be sleeved on the outside of the machine body to protect it.

[0007] Further, fins are arranged on the outside of the machine body, mounting holes c are formed in the protection cover, heat conduction blocks are clamped on the fins of the machine body, the heat conduction blocks contain cooling liquid in the inside, the heat conduction blocks are in contact with the fins on the outside of the machine body, and mounting holes a and mounting holes b are also formed in the protection cover.

[0008] Further, the heat-conducting block is internally fixedly installed with a heat-conducting sheet, the heat-conducting sheet can extend above the heat-conducting block, the heat-conducting sheet can adopt copper or aluminum material, and the heat-conducting sheet inside the heat-conducting block can contact the cooling liquid.

[0009] Further, the end of the heat-conducting block is fixedly installed with a fixing rod, the fixing rod extends on the air inlet pipe, the air inlet pipe is provided with a threaded hole, the fixing rod is provided with a screw, and the screw can be threadedly connected with the threaded hole of the air inlet pipe through the fixing rod.

[0010] Further, one end of the machine body is fixedly installed with a back plate, the back plate can seal one side of the machine body, a plurality of groups of through holes are formed in the back plate, and the back plate is provided with bolts that are threadedly connected with the machine body through the through holes.

[0011] Further, a plurality of groups of hole grooves are formed in the protective cover, the number of the hole grooves is equal to the number of the bolts and is located at one position.

[0012] Further, the ends of the two groups of rotors are fixedly installed with intermeshing gears, and the gears are close to the outer side of the machine body.

[0013] The application has the following beneficial effects:

[0014] The application provides a Roots screw composite compressor, the protective assembly is arranged, the protective cover has an elastic effect, so that the impact force of the compressor assembly from the outside can be effectively buffered, and damage of accidental collision to the machine body and other components is reduced; meanwhile, vibration generated during operation of the compressor assembly can be absorbed, fatigue damage of the vibration to components such as the rotor is reduced, and the service life of the equipment is prolonged.

[0015] The application provides a Roots screw composite compressor, fins are arranged on the outer side of the machine body, so that heat generated during operation of the compressor assembly can be conducted out through the fins, and a heat-conducting block is arranged, the heat-conducting block can contact the fins on the outer side of the machine body, and the heat-conducting block internally stores cooling liquid, so that the machine body can further enhance the heat dissipation effect through circulation of the cooling liquid, to ensure stable operation of the compressor. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings accompanying the specification of this application form a part thereof, serve to provide further understanding of the application, and together with the specification explain the application. The use of these drawings in explaining the application does not imply that the application should be limited to the particular embodiments depicted.

[0017] In the drawings:

[0018] Figure 1 It is a whole schematic view of a Roots screw composite compressor in the application;

[0019] Figure 2Exploded view of the compressor assembly;

[0020] Figure 3 This is a schematic diagram of the protective shield;

[0021] Figure 4 This is a schematic diagram of a heat-conducting block;

[0022] Figure 5 This is a schematic diagram of the heat-conducting block installation.

[0023] The following are the labeling elements in the figure:

[0024] 10. Compressor assembly; 11. Machine body; 12. Inlet pipe; 13. Outlet pipe; 14. Back plate; 15. Bolts; 16. Rotor; 17. Gears;

[0025] 20. Protective component; 21. Protective cover; 22. Groove; 23. Mounting hole a; 24. Mounting hole b; 25. Mounting hole c; 26. Heat-conducting block; 27. Heat-conducting plate; 28. Fixing rod; 29. ​​Screw. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0028] like Figures 1-5 As shown, this application provides a Roots screw compound compressor, including a compressor assembly 10 and a protective assembly 20 sleeved on the outside of the compressor assembly 10. The compressor assembly 10 is used to compress gas, while the protective assembly 20 is used to seal the outside of the compressor assembly 10, thereby preventing the compressor assembly 10 from being exposed to the outside in a large area, and thus providing external protection for the compressor assembly 10 to prevent it from being accidentally impacted by the outside.

[0029] The compressor assembly 10 comprises a body 11, the body 11 is fixedly installed with an air inlet pipe 12, and the both ends of the body 11 are fixedly installed with air outlet pipes 13, and the inside of the body 11 is provided with a cavity, and the inside of the body 11 is provided with two groups of rotors 16 close to each other, and in actual operation, the gas enters the cavity from the air outlet pipe 13 at one end of the body 11, and is gradually compressed by the two groups of rotors 16, and is discharged from the air outlet pipe 13 at the other end.

[0030] The end of the two groups of rotors 16 is fixedly installed with gear wheels 17 that mesh with each other, and the gear wheels 17 are close to the outside of the body 11, so that the two groups of rotors 16 can realize synchronous reverse rotation, thereby improving the gas compression efficiency.

[0031] One end of the body 11 is fixedly installed with a back plate 14, the back plate 14 can seal one side of the body 11, and a plurality of through holes are formed in the back plate 14, and the back plate 14 is provided with an equal number of bolts 15 at the through holes, and the bolts 15 can be threadedly connected with the body 11 through the through holes, so that the back plate 14 can be quickly disassembled and assembled on the body 11 through the bolts 15.

[0032] The protection assembly 20 comprises a protective cover 21, the protective cover 21 can be matched with the shape structure of the outside of the body 11, and the protective cover 21 itself has a certain elasticity, the protective cover 21 can be made of high-elasticity silicone rubber material and molded by a mold, the protective cover 21 can be sleeved on the outside of the body 11, so that the protective cover 21 can protect the body 11, thereby improving the overall use safety of the compressor assembly 10, and the protective cover 21 also has the effects of dust prevention and shock absorption and buffering; when the compressor assembly 10 operates and vibrates, the elastic property of the protective cover 21 can absorb part of the vibration energy, reducing the influence of vibration on the body 11 and other components.

[0033] Meanwhile, a plurality of hole grooves 22 are formed in the protective cover 21, the number of the hole grooves 22 is equal to the number of the bolts 15 and is at one position, and the protective cover 21 is also respectively provided with a mounting hole a 23 and a mounting hole b 24, the diameters of the mounting hole a 23 and the mounting hole b 24 correspond to the diameters of the air inlet pipe 12 and the air outlet pipe 13 respectively, so that when the protective cover 21 is installed on the outside of the body 11, the air inlet pipe 12 and the air outlet pipe 13 will pass through the mounting hole a 23 and the mounting hole b 24 respectively at this time, so that a micro-gap fit can be formed, which not only ensures that the air inlet pipe 12 and the air outlet pipe 13 can pass through smoothly, but also realizes tight wrapping through the elastic deformation of the protective cover 21, forming a sealing ring, this design makes the protective cover 21 play the roles of protection and shock absorption on the outside of the body 11, without affecting the normal use of the air inlet pipe 12 and the air outlet pipe 13.

[0034] The fins outside the body 11 are made of aluminum alloy material with good heat conduction performance, and are integrally formed with the body 11 by pressure casting process. When the internal structure of the body 11 works, heat is generated. At this time, the heat dissipation area of the body 11 can be increased. When the compressor assembly 10 operates, the heat generated is quickly conducted to the body 11 and then efficiently exported through the fins.

[0035] The protective cover 21 is provided with a mounting hole c25, and the fins of the body 11 are provided with a heat conducting block 26. The heat conducting block 26 contains cooling liquid. When the fins of the body 11 discharge heat, the heat conducting block 26 can contact the fins outside the body 11, so that the body 11 can further enhance the heat dissipation effect through the circulation of the cooling liquid, to ensure the stable operation of the compressor.

[0036] The heat conducting block 26 is fixedly provided with a heat conducting sheet 27. The heat conducting sheet 27 can extend above the heat conducting block 26, and can be made of a material with good heat conduction. The heat conducting sheet 27 inside the heat conducting block 26 can contact the cooling liquid. During the operation of the compressor assembly 10, the heat on the fins of the body 11 is transferred to the heat conducting block 26 and then quickly to the heat conducting sheet 27. Due to the excellent heat conduction performance of the heat conducting sheet 27, the heat can quickly spread to the entire heat conducting sheet 27. At the same time, when the cooling liquid flows in the heat conducting block 26, it flows through the surface of the heat conducting sheet 27, so that the heat conducting sheet 27 can fully exchange heat and quickly remove the heat on the heat conducting sheet 27.

[0037] The heat conducting block 26 is fixedly provided with a fixing rod 28, which extends on the air inlet pipe 12. The air inlet pipe 12 is provided with a threaded hole, and the fixing rod 28 is provided with a screw 29. The screw 29 can be screwed with the threaded hole of the air inlet pipe 12 through the fixing rod 28. When the heat conducting block 26 is clamped on the fins of the body 11, it is preliminarily fixed. The screw 29 is connected with the threaded hole, so that the installation effect of the heat conducting block 26 on the body 11 can be further improved, thereby ensuring the installation stability of the heat conducting block 26.

[0038] The above is only the preferred embodiment of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A Roots-screw compound compressor, comprising a compressor assembly (10), characterized in that: The compressor assembly (10) is fitted with a protective component (20). The compressor assembly (10) includes a body (11). An air inlet pipe (12) is fixedly installed on the body (11). An air outlet pipe (13) is fixedly installed at both ends of the body (11). A cavity is opened inside the body (11). Two sets of rotors (16) close to each other are installed in the bearing inside the body (11). The protective component (20) includes a protective cover (21). The protective cover (21) can be adapted to the outer shape and structure of the body (11). The protective cover (21) itself is elastic. The protective cover (21) can be fitted on the outside of the body (11) to protect it.

2. The Roots-screw compound compressor according to claim 1, characterized in that: The outer side of the body (11) is provided with fins, and the protective cover (21) is provided with mounting holes c (25). A heat-conducting block (26) is snapped onto the fins of the body (11). The heat-conducting block (26) contains coolant. The heat-conducting block (26) is in contact with the fins on the outer side of the body (11). The protective cover (21) is also provided with mounting holes a (23) and b (24).

3. A Roots-screw compound compressor according to claim 2, characterized in that: A heat-conducting plate (27) is fixedly installed inside the heat-conducting block (26). The heat-conducting plate (27) can extend above the heat-conducting block (26). The heat-conducting plate (27) is made of copper or aluminum. The heat-conducting plate (27) inside the heat-conducting block (26) can contact the coolant.

4. A Roots-screw compound compressor according to claim 2, characterized in that: A fixing rod (28) is fixedly installed at the end of the heat-conducting block (26). The fixing rod (28) extends on the air intake pipe (12). A threaded hole is provided on the air intake pipe (12). A screw (29) is provided on the fixing rod (28). The screw (29) can pass through the fixing rod (28) and be threadedly connected to the threaded hole of the air intake pipe (12).

5. A Roots-screw compound compressor according to claim 1, characterized in that: A back plate (14) is fixedly installed at one end of the body (11). The back plate (14) can seal one side of the body (11). Several sets of through holes are provided on the back plate (14). Bolts (15) that are threadedly connected to the body (11) are provided on the back plate (14) through the through holes.

6. A Roots-screw compound compressor according to claim 5, characterized in that: The protective cover (21) has several sets of holes and slots (22), the number of which is equal to the number of bolts (15) and they are located in the same position.

7. A Roots-screw compound compressor according to claim 1, characterized in that: The ends of the two sets of rotors (16) are fixedly fitted with meshing gears (17), which are located close to the outside of the body (11).

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