A full meshing rotor profile roots blower

Abstract

The utility model discloses a full mesh rotor type line roots blower, relate to roots blower technical field, and the utility model discloses a frame, the top of frame is equipped with roots blower main part through bolt mounting, and the lower part of roots blower main part is equipped with protection mechanism, is used for the quick blow -drying of the condensed water of lower part, and protection mechanism includes: drying assembly includes two mutually cooperative use's protection cover of rotation installation in the lower part of roots blower main part, and the application is through setting protection cover, and then through two ventilating fans produce convection gas, and the outside air is inhaled to one side, and the other side discharges the moisture in the cover, forms high -speed drying airflow in the protection cover, and the inhaled airflow first passes through drying board effective adsorption moisture, ensures the dry air of blowing to the surface of casing, so that can be targeted after shutdown then speed up evaporation condensed water, and then can avoid the equipment under the long -term operation, the corrosion of the equipment lower part due to the condensed water of often gathering lower part.

Description

Technical Field

[0001] This utility model relates to the field of Roots blower technology, specifically a fully meshing rotor profile Roots blower. Background Technology

[0002] The core working principle of the fully meshing rotor profile Roots blower is to achieve gas intake, compression and discharge through the synchronous counter-rotation of a pair of meshing rotors. With its advantages such as compact structure and stable gas supply, it is widely used in industrial fields such as chemical industry, sewage treatment, and pneumatic conveying.

[0003] Reference patent document: Patent publication number CN222334005U, patent publication date 2025-01-10, provides a fully meshing rotor profile Roots blower, including a drive motor and a Roots blower body. A fixed outer shell is fixedly installed on the Roots blower body, and a rotating shaft is rotatably installed inside the fixed outer shell. A drive shaft is fixedly installed on one side of the drive motor, and the rotating shaft passes through the fixed outer shell and is rotatably connected to the drive shaft via a transmission belt. A rotating gear is fixedly installed on one side of the rotating shaft, and a transmission gear is installed on one side of the rotating gear. The rotating gear and the transmission gear mesh with each other. A transmission shaft is fixedly connected to one side of the transmission gear. Rotating impellers are fixedly installed on both the transmission shaft and the rotating shaft. By setting a partition plate, a movable plate, and a one-way valve, the movable plate can be driven by an electric push rod to allow lubricating oil to enter the gearbox from the oil inlet to lubricate the gears. At the same time, the liquid level detector can control the opening and closing of the electric telescopic rod according to the level of lubricating oil in the gearbox, thereby realizing the function of automatically adding lubricating oil.

[0004] Based on the search of patent numbers and the shortcomings of existing technologies, the following was found:

[0005] During operation, Roots blowers typically generate a large amount of heat through gas compression and mechanical friction, causing the casing temperature to rise. When the equipment stops, the casing temperature drops accordingly. If the surface temperature falls below the dew point of the ambient air, water vapor in the air will condense on the casing surface, especially in the lower area where heat dissipates quickly and the temperature is relatively low. Long-term or frequent accumulation of condensate can cause severe corrosion to the carbon steel casing, not only shortening the service life of the equipment but also posing a safety hazard of gas leakage due to rust and perforation of the casing.

[0006] Therefore, this utility model provides a fully meshing rotor profile Roots blower. Utility Model Content

[0007] To address the issue that condensation occurs in Roots blowers during operation and shutdown due to the temperature rise and fall of the lower casing surface below the dew point, leading to long-term water accumulation and potential corrosion and perforation of the casing, this invention aims to provide a fully meshing rotor profile Roots blower.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a fully meshing rotor profile Roots blower, comprising a frame, with the Roots blower body bolted to the top of the frame, and a protective mechanism at the bottom of the Roots blower body for quickly drying the condensate generated at the bottom. The protective mechanism includes:

[0009] The drying assembly includes two mutually cooperating protective covers rotatably mounted on the lower part of the Roots blower body. A ventilation fan is fixedly installed in the middle of one side of each of the two protective covers. Dust covers are provided at the corresponding positions of the two protective covers and the ventilation fans. A drying plate is detachably installed in the middle of the dust cover.

[0010] A flip-up assembly, located on the upper part of the two protective covers, is used to adjust their angle.

[0011] Preferably, the flipping assembly includes rotating shafts rotatably mounted on both sides of the upper part of the Roots blower body, the upper parts of two protective covers are fixedly mounted on the middle of the rotating shafts, a worm gear is fixedly mounted on one end of each of the two rotating shafts, and a worm is provided on one side of each of the two worm gears, with the worm gears and worms meshing with each other.

[0012] Preferably, each of the two dust covers has multiple evenly distributed ventilation holes on one side to facilitate the exchange of air between the inside and outside of the cover.

[0013] Preferably, each of the two dust covers has a mounting groove at one of its four corners. Fasteners are inserted through the mounting grooves and installed on the outside of the protective cover, thus enabling the dust cover to be detachably installed.

[0014] Preferably, a water pipe is fixedly installed at the lower part of both protective covers, and the two water pipes are used to drain excess condensate in a timely manner.

[0015] Preferably, both ends of the Roots blower body are fixedly installed with mounting covers, the worm gear is rotatably installed on the upper part of the mounting cover, and a handle is fixedly installed at one end of the worm gear that passes through the mounting cover.

[0016] Beneficial effects

[0017] This invention provides a fully meshing rotor profile Roots blower. Compared with the prior art, it has the following advantages:

[0018] 1. This application uses a protective cover and two ventilation fans to generate convective airflow, drawing in outside air on one side and expelling moisture from inside the cover on the other, creating a high-speed dry airflow inside the protective cover. The airflow first passes through a drying plate to effectively absorb moisture, ensuring that dry air is blown onto the surface of the casing. This allows for targeted and accelerated evaporation of condensate after shutdown, thereby preventing corrosion of the lower part of the equipment due to frequent accumulation of condensate during long-term operation.

[0019] 2. With this application, the operator only needs to turn the handle to drive the worm gear, which in turn drives the worm wheel and the shaft to move synchronously, so as to realize the smooth opening and closing of the two protective covers. This provides sufficient and safe operating space for the maintenance of the lower pipelines and valves. After the maintenance is completed, the worm gear can be easily reset by turning it in the opposite direction and the protective cover can be sealed, ensuring that the rubber sealing ring fits tightly and restoring its complete protective function. This realizes the reliable and quick switching between the two states of protection and convenient maintenance of the protective cover. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the protective mechanism structure of this utility model.

[0022] Figure 3 This is a schematic diagram of the structure of the protective cover after it has been disassembled in this utility model.

[0023] Figure 4 This is a schematic cross-sectional view of the protective cover of this utility model.

[0024] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle.

[0025] Figure 6 This utility model Figure 4 Enlarged view of point B in the middle.

[0026] In the diagram: 1. Frame; 11. Main body of Roots blower; 2. Protective mechanism; 21. Drying assembly; 211. Protective cover; 212. Water pipe; 213. Dust cover; 214. Ventilation hole; 215. Mounting slot; 216. Drying plate; 217. Ventilation fan; 22. Tilting assembly; 221. Mounting cover; 222. Worm gear; 223. Worm; 224. Handle; 225. Shaft. Detailed Implementation

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

[0028] Please see Figure 1-6 This utility model provides a technical solution: a fully meshing rotor profile Roots blower, including a frame 1, with a Roots blower body 11 bolted to the top of the frame 1. A protective mechanism 2 is provided at the lower part of the Roots blower body 11 for quickly drying the condensate generated at the lower part. The protective mechanism 2 includes:

[0029] The drying assembly 21 includes two mutually cooperating protective covers 211 rotatably mounted on the lower part of the Roots blower body 11. When the two protective covers 211 are closed, they can completely cover the high-concentration condensate area at the bottom of the body, and the upper inner side maintains a certain gap with the outer shell of the body, ensuring that when condensate is generated on the upper part of the outer surface of the Roots blower body 11, it can enter the protective cover 211 through the gap. At the same time, the gap provides room for the rotation of the protective covers 211, preventing the protective covers 211 from colliding with the outer shell of the Roots blower body 11 when it is rotated. Rubber sealing rings are provided on opposite sides of the two protective covers 211, and the two sealing rings contact each other when closed. The middle of one side of each of the two protective covers 211 is fixed. The unit is equipped with two ventilation fans 217, one blowing air inward and the other outward, which creates a rapid airflow within the protective cover 211. When the Roots blower body 11 is working, the rapid airflow can cool the unit. When it is not working and condensation occurs, the airflow is accelerated during operation, and dry air is blown inward through the drying plate 216, thus drying the outer surface in time. Dust covers 213 are provided at the corresponding positions of the two protective covers 211 and the ventilation fans 217. The drying plate 216 is detachably installed in the middle of the dust cover 213. The drying plate 216 is filled with composite silica gel desiccant and wrapped with a breathable non-woven fabric to absorb moisture in the airflow.

[0030] A flip component 22 is located on the upper part of the two protective covers 211 for adjusting their angle.

[0031] The flipping assembly 22 includes rotating shafts 225 rotatably mounted on both sides of the upper part of the Roots blower body 11. The upper parts of two protective covers 211 are fixedly mounted in the middle of the rotating shafts 225. Worm gears 222 are fixedly mounted on one end of each of the two rotating shafts 225. Worms 223 are provided on one side of each of the two worm gears 222. The worm gears 222 and worms 223 are meshed with each other. Since the lower part of the Roots blower body 11 usually has working accessories (such as connected exhaust pipes), when maintenance is required, the two worms 223 can be rotated simultaneously to make the worm gears 222 rotate, which will drive the two protective covers 211 to flip outward synchronously, so that the lower part of the Roots blower body 11 can be completely exposed, thereby facilitating the maintenance of the lower equipment. In addition, the structure of the worm gears 222 and worms 223 has a self-locking function, which allows the protective covers 211 to stay at any angle when flipped, which is convenient for operators to use and maintain. At the same time, it can also make the sealing effect better when closed.

[0032] Multiple evenly distributed ventilation holes 214 are provided on one side of each of the two dust covers 213 to facilitate the exchange of air between the inside and outside of the protective cover 211. The ventilation holes 214 are arranged in an array to ensure the efficiency of air exchange between the inside and outside of the protective cover 211, and to reduce the entry of large particles of impurities through the hole size.

[0033] Each of the four corners of the two dust covers 213 has a mounting groove 215. After fasteners pass through the mounting grooves 215, they are installed on the outside of the protective cover 211, so that the dust cover 213 can be detachably installed. Alternatively, bolts can pass through the mounting grooves 215 and be threaded onto the other side of the protective cover 211, so that the dust cover 213 can be installed and fixed.

[0034] Both protective covers 211 are fixedly equipped with water pipes 212 at their lower parts. The two water pipes 212 are used to discharge excess condensate in a timely manner. A one-way check valve is installed in the middle of the water pipes 212 to reduce the entry of dust and humid air.

[0035] Both ends of the Roots blower body 11 are fixedly equipped with mounting covers 221. The mounting covers 221 are located outside the worm 223 and worm wheel 222, which can protect their meshing and ensure stable operation. The worm 223 is rotatably mounted on the upper part of the mounting cover 221. A handle 224 is fixedly installed at one end of the worm 223 that passes through the mounting cover 221. The outer side of the handle 224 is provided with anti-slip textures distributed in a diamond array. By rotating the handle 224, the worm 223 can be driven to rotate.

[0036] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0037] During operation, whether the Roots blower body 11 is running or stopped, the two protective covers 211 always protect the area with high condensation rates at the bottom. When the equipment is working, the two protective covers 211 are in a closed state, and the rubber sealing rings on their opposite sides fit together to form a closed protective space. At the same time, the gap reserved between the upper inner side of the protective cover 211 and the outer shell of the main body not only prevents collisions when it is turned over, but also guides the condensation that may form on the upper part of the main body into the interior of the protective cover 211. When the two ventilation fans 217 are started, one ventilation fan 217 blows air inward and the other exhausts air outward, forming a fast-flowing airflow circuit. When the airflow enters through the ventilation holes 214 of the dust cover 213, it will be dehumidified by the internal drying plate 216. When the dry airflow flows over the lower surface of the main body, it can both remove the heat generated by the operation of the equipment to achieve cooling and inhibit the formation of condensation.

[0038] When the equipment is shut down, if high ambient humidity or temperature changes cause condensation to form on the lower part of the main body, the ventilation fan 217 will continue to work, blowing dry airflow into the protective cover 211 through the drying plate 216 to accelerate the evaporation of condensation and achieve rapid drying of the outer surface of the main body; excess condensation that has not been completely evaporated will collect at the lower part of the protective cover 211 under the action of gravity and be discharged through the drain pipe 212. The one-way check valve in the middle of the drain pipe 212 can effectively prevent external dust and humid air from entering in reverse, further ensuring the protective effect.

[0039] When it is necessary to inspect the working parts at the bottom of the Roots blower body 11 (such as the connection between the exhaust pipe and the body), the operator can rotate the handle 224 on the outside of the mounting cover 221. The handle 224 drives the worm 223 to rotate. Utilizing the meshing transmission relationship between the worm wheel 222 and the worm 223, the rotating shaft 225 is driven to rotate synchronously, thereby causing the two protective covers 211 to flip outwards. This allows the operator to completely expose the lower part of the body for inspection. After the inspection is completed, rotating the handle 224 in the opposite direction will reset and close the protective cover 211, allowing the rubber sealing ring to re-adhere and restore the closed protective state, ensuring the sealing effect and condensate control capability during normal operation of the equipment.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A full-engagement-rotor-lobe Roots blower comprising a frame (1), characterized in that: The top of the frame (1) is bolted with a Roots blower body (11). The lower part of the Roots blower body (11) is provided with a protective mechanism (2) for quickly drying the condensate generated at the bottom. The protective mechanism (2) includes: The drying assembly (21) includes two protective covers (211) that are rotatably mounted on the lower part of the Roots blower body (11) and cooperate with each other. A ventilation fan (217) is fixedly installed on the middle of one side of each of the two protective covers (211). A dust cover (213) is provided at the corresponding position of each of the two protective covers (211) and the ventilation fan (217). A drying plate (216) is detachably installed in the middle of the dust cover (213). A flipping component (22) is located on the upper part of the two protective covers (211) for adjusting their angle.

2. A fully meshed rotor profile Roots blower as claimed in claim 1, characterized in that: The flipping assembly (22) includes a rotating shaft (225) rotatably mounted on both sides of the upper part of the Roots blower body (11). The upper parts of the two protective covers (211) are fixedly mounted in the middle of the rotating shaft (225). A worm gear (222) is fixedly mounted on one end of each of the two rotating shafts (225). A worm (223) is provided on one side of each of the two worm gears (222). The worm gear (222) and the worm (223) are meshed and connected to each other.

3. A fully meshing rotor profile Roots blower according to claim 1, characterized in that: Each of the two dust covers (213) has a plurality of evenly distributed ventilation holes (214) on one side to facilitate the exchange of air between the inside and outside of the protective cover (211).

4. A fully meshing rotor profile Roots blower according to claim 1, characterized in that: Each of the two dust covers (213) has a mounting groove (215) at one of its four corners. After fasteners pass through the mounting grooves (215), the dust cover (213) is installed on the outside of the protective cover (211), thus enabling the dust cover (213) to be detachably installed.

5. A fully meshing rotor profile Roots blower according to claim 1, characterized in that: Both of the protective covers (211) are fixedly equipped with water pipes (212) at their lower parts. The two water pipes (212) are used to drain excess condensate in a timely manner.

6. A fully meshed rotor profile Roots blower as claimed in claim 2, characterized in that: Both ends of the Roots blower body (11) are fixedly installed with mounting covers (221), and the worm gear (223) is rotatably installed on the upper part of the mounting cover (221). A handle (224) is fixedly installed at one end of the worm gear (223) that passes through the mounting cover (221).

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