Cooling type Roots blower
By using a combination of heat sink, heat conduction pipe and heat sink fins in the Roots fan, the temperature increase problem caused by heat accumulation of Roots fan is solved, and effective cooling effect is achieved, preventing deformation and wear of mechanical components, ensuring the sealing performance and efficient operation of Roots fan.
Patent Information
- Application Number
- CN202422077623.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-26
AI Technical Summary
During the operation, the internal temperature of the Roots fan increases due to mechanical friction and gas compression. If it is not cooled in time, it may cause expansion and deformation of metal parts, increase mechanical wear and resistance, and affect sealing performance.
A cooling Roots fan is designed, using a combination of heat sink, heat pipe and heat dissipation fins to conduct heat to the heat dissipation fins through the heat conduction tube, and heat dissipation through natural convection to cool the Roots fan.
It effectively reduces the temperature inside the Roots fan, prevents expansion and deformation of metal parts, reduces mechanical wear and resistance, and ensures the sealing performance and long-term efficient operation of the Roots fan.
Smart Images

Figure CN223018914U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of Roots blowers, in particular to a cooling type Roots blower. Background Art
[0002] A Roots blower is a positive displacement blower, also known as a Roots blower. Its working principle is that two non-contact rotors (i.e., kidney-shaped rotors or figure-eight rotors) inside rotate to squeeze air and push it from the air inlet to the air outlet, thereby realizing the transportation of gas.
[0003] During the operation of the Roots blower, due to the friction between mechanical components and the heat generated during the gas compression process, the internal temperature of the Roots blower will gradually increase. However, during the process of the internal temperature of the Roots blower increasing, if the inside of the Roots blower is not cooled in time, it is easy to cause the metal components of the Roots blower to expand and deform. In particular, the gap between the rotor and the housing decreases, which will increase mechanical wear and resistance, and may also damage the original precise gap design, affecting the sealing performance of the Roots blower.
[0004] In view of the above problems, a cooling type Roots blower needs to be designed. Summary of the Utility Model
[0005] In order to overcome the disadvantages that the metal components of the Roots blower expand and deform, especially the gap between the rotor and the housing decreases, which will increase mechanical wear and resistance, the utility model provides a cooling type Roots blower.
[0006] The technical solution of the utility model is as follows: a cooling type Roots blower includes a Roots blower body, heat dissipation fins, heat conduction tubes, heat dissipation fins, a mounting bracket and a mounting plate. An air inlet is arranged at the upper part of the Roots blower body, and an air outlet is arranged at the lower part of the Roots blower body. Mounting brackets are symmetrically arranged on both sides of the lower part of the Roots blower body. The mounting brackets penetrate through the Roots blower body. Heat dissipation fins are arranged on one side of the mounting brackets close to the air inlet. Multiple groups of heat conduction tubes are arranged inside the mounting brackets. All the heat conduction tubes are arranged in a row. All the heat conduction tubes penetrate through the mounting brackets. A mounting plate is installed on the lower side of the mounting brackets. Multiple heat dissipation fins are evenly spaced inside the mounting brackets. All the heat conduction tubes pass through all the heat dissipation fins.
[0007] As an improvement of the above solution, a first fan is further included. The first fans are symmetrically arranged front and back on the upper part of the mounting plate.
[0008] As an improvement of the above solution, a protective shell is further included. The protective shell is arranged at the lower part of the Roots blower body.
[0009] As an improvement of the above solution, a second fan is further included. The second fans are symmetrically arranged on both sides of the protective shell.
[0010] As an improvement to the above solution, it further includes a protective net, and a plurality of protective nets are symmetrically distributed on the protective shell.
[0011] As an improvement to the above solution, the heat sink is made of aluminum.
[0012] The beneficial effects of the present utility model are as follows: Through the cooperation of the heat sink, the heat conduction pipe and the heat dissipation fins, when the Roots blower generates heat during operation and causes the internal temperature to rise, the heat sink quickly absorbs the generated heat and transfers the generated heat to the heat conduction pipe. The heat conduction pipe transfers the received heat to the heat dissipation fins, and the heat dissipation fins dissipate the transferred heat into the air through natural convection, so as to facilitate the cooling treatment of the inside of the Roots blower. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model.
[0014] Figure 2 It is a three-dimensional structural schematic diagram of components such as the Roots blower body, the air inlet and the air outlet of the present utility model.
[0015] Figure 3 It is a three-dimensional structural schematic diagram of components such as the heat sink, the heat conduction pipe and the heat dissipation fins of the present utility model.
[0016] Figure 4 It is a three-dimensional structural schematic diagram of the protective shell, the second fan and the protective net of the present utility model.
[0017] Names of the reference numerals in the figures: 1, Roots blower body; 2, air inlet; 3, air outlet; 4, heat sink; 5, heat conduction pipe; 6, heat dissipation fins; 7, mounting bracket; 8, mounting plate; 9, first fan; 10, protective shell; 11, second fan; 12, protective net. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] The above solution will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are for explaining the present application and not for limiting the scope of the present application. The implementation conditions adopted in the embodiments can be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are usually the conditions in conventional experiments.
[0019] Embodiment: A cooling-type Roots blower, as Figures 1 - 4As shown in the figure, it includes a Roots blower body 1, heat sinks 4, heat conduction tubes 5, heat dissipation fins 6, mounting brackets 7, mounting plates 8, a first fan 9, a protective housing 10, a second fan 11, and a protective net 12. An air inlet 2 is provided at the upper part of the Roots blower body 1 for guiding external air into the interior of the Roots blower body 1. An air outlet 3 is provided at the lower part of the Roots blower body 1. Mounting brackets 7 are symmetrically arranged on both sides of the lower part of the Roots blower body 1. The mounting brackets 7 penetrate through the Roots blower body 1. A heat sink 4 is connected to one side of the mounting bracket 7 close to the air inlet 2. The heat sink 4 is made of aluminum. The heat sink 4 cooperates with the heat conduction tubes 5 to improve the heat exchange efficiency. Multiple groups of heat conduction tubes 5 are arranged inside the mounting brackets 7. All the heat conduction tubes 5 are arranged in a row. All the heat conduction tubes 5 penetrate through the mounting brackets 7. The heat conduction tubes 5 can quickly conduct heat and rapidly disperse the generated heat to the heat dissipation fins 6, accelerating the cooling process inside the Roots blower body 1. A mounting plate 8 is arranged on the lower side of the mounting brackets 7. Multiple heat dissipation fins 6 are evenly spaced inside the mounting brackets 7. All the heat conduction tubes 5 pass through all the heat dissipation fins 6, which can increase the surface area around the heat conduction tubes 5 and improve the heat dissipation efficiency by increasing the contact area with air. The first fan 9 is symmetrically arranged front and back on the upper part of the mounting plate 8. The protective housing 10 is arranged at the lower part of the Roots blower body 1. The second fan 11 is symmetrically arranged on both sides of the protective housing 10. Multiple protective nets 12 are symmetrically distributed on the protective housing 10.
[0020] During the water treatment process, when this device needs to be used for aeration and oxygenation, the staff first installs the Roots blower near the aeration tank using bolts. After the Roots blower is firmly installed, the staff then tightly connects one end of the pipeline to the air outlet 3 of the Roots blower, and then checks the tightness of the connection to avoid air leakage. Next, the staff lays the pipeline connected to the air outlet 3 along the pre-planned path until it reaches the bottom of the aeration tank. When the pipeline reaches the bottom of the aeration tank, the other end of the pipeline is connected to the aeration head. Then, the staff starts the Roots blower, causing the built-in motor of the Roots blower to drive two rotors to rotate synchronously in opposite directions, creating a negative pressure at the air inlet 2, and air is sucked in. As the rotors rotate, the sucked-in air is gradually compressed, and the compressed air is discharged into the pipeline through the air outlet 3, then transported along the pipeline to the bottom of the aeration tank, and released through the aeration head to provide oxygen for the microorganisms in the aeration tank. Repeating this process, during the operation of the Roots blower, due to the dynamic friction between mechanical components and the adiabatic heating during gas compression, the internal temperature of the Roots blower will gradually increase. At this time, the heat sink 4 can absorb the heat generated inside the Roots blower and transfer the absorbed heat to the heat conduction pipe 5. The heat conduction pipe 5 then transfers the heat to the heat dissipation fins 6, and the heat dissipation fins 6 dissipate the heat. Then, the staff starts two first fans 9 and a second fan 11. The wind generated by the rotation of the front first fan 9 blows towards the heat dissipation fins 6 to help the heat dissipation fins 6 cool down, and the rear first fan 9 sucks away the hot air after heat dissipation and discharges the hot air into the external environment to avoid hot air reflux. At the same time, the wind generated by the rotation of the second fan 11 also blows towards the heat dissipation fins 6, increasing the air convection of the heat dissipation fins 6 and helping to cool the heat dissipation fins 6 faster. Repeating the above operations ensures that the Roots blower always maintains an appropriate temperature during operation, avoiding malfunctions or damage to the Roots blower caused by overheating, thus ensuring the long-term and efficient operation of the Roots blower.
[0021] The above embodiments are only preferred embodiments of the present invention and are not used to limit the scope of implementation of the present invention. Therefore, all equivalent changes made based on the content described in the claims of the present invention should be included within the scope of the claims of the present invention.
Claims
1. A cooling Roots blower, characterized in that it includes The invention comprises a Roots blower body (1), a heat sink (4), a heat pipe (5), a heat sink fin (6), a mounting frame (7) and a mounting plate (8). The upper side of the Roots blower body (1) is provided with an air inlet (2), the lower side of the Roots blower body (1) is provided with an air outlet (3), the lower side of the Roots blower body (1) is symmetrically provided with mounting frames (7), the mounting frames (7) penetrate the Roots blower body (1), the side of the mounting frame (7) close to the air inlet (2) is connected with a heat sink (4), a plurality of groups of heat pipes (5) are arranged inside the mounting frame (7), all the heat pipes (5) are arranged in an array, all the heat pipes (5) penetrate the mounting frame (7), a mounting plate (8) is arranged on the lower side of the mounting frame (7), a plurality of heat sink fins (6) are evenly spaced inside the mounting frame (7), and all the heat pipes (5) penetrate all the heat sink fins (6).
2. A cooling Roots blower as claimed in claim 1, characterized in that: It also includes a first fan (9), which is symmetrically arranged front and back on the upper part of the mounting plate (8).
3. A cooling Roots blower as claimed in claim 2, characterized in that: It also includes a protective shell (10), and the lower part of the Roots blower body (1) is provided with the protective shell (10).
4. A cooling Roots blower as claimed in claim 3, characterized in that: It also includes a second fan (11), and the second fans (11) are symmetrically arranged on both sides of the protective shell (10).
5. A cooling Roots blower as claimed in claim 4, characterized in that: It also includes a protection net (12), and a plurality of protection nets (12) are symmetrically distributed on the protection shell (10).
6. A cooling Roots blower as claimed in claim 5, characterized in that: The heat sink (4) is made of aluminum.