Roots screw vacuum unit for power industry

Abstract

The invention belongs to the technical field of Roots screw vacuum units, and particularly relates to a Roots screw vacuum unit for the power industry, which comprises a bracket, a Roots vacuum pump is fixedly connected to the top of the bracket, and a screw vacuum pump is fixedly connected to one side, far away from the Roots vacuum pump, of the top of the bracket; the Roots screw vacuum unit for the power industry further comprises a pretreatment mechanism and an auxiliary cooling mechanism, the bottom of the pretreatment mechanism is fixedly connected with the top of the Roots vacuum pump, and the bottom of the auxiliary cooling mechanism is fixedly connected with the top of the support. Oil mist and dust in the air are captured, the dust and the oil mist entering the roots vacuum pump are reduced, the air is kept dry and free of impurities, the self-cleaning effect is kept, the cleaning and maintenance time of equipment is prolonged, meanwhile, when airflow enters the connecting pipe, through the blocking effect of the spiral blocking piece, the air flow speed is reduced, impact on the inner wall of an air inlet is reduced, and therefore noise is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of Roots screw vacuum units, and specifically relates to a Roots screw vacuum unit for the power industry. Background Art

[0002] Existing screw vacuum pumps are mainly applied to high-purity vacuum process, with extremely high vacuum degree, capable of adapting to harsh working conditions, having the ability to extract condensable and particulate-containing gases, being particularly suitable for clean environments, and being easy to be anti-corrosion treated. It is an upgraded product of traditional vacuum pumps and has great market prospects in the future; The Roots vacuum pump is one of the main air extraction devices for obtaining medium and high vacuum at present. The biggest advantage is that it has a high pumping speed at a relatively low inlet pressure and can reach a relatively high ultimate vacuum. This pump has stable operating performance, long service life, and low maintenance cost.

[0003] Since it is transporting vacuum air and there is a large amount of dust mixed in the air, the dust will contaminate the pump oil of the vacuum pump. If the degree of pump oil contamination is too much, it is very likely that the pump body will be stuck. And since the inlet of the vacuum pump is often smaller than the inner diameter of the air delivery pipe when air enters the vacuum pump, the air velocity will increase here, which will impact the inner wall of the air inlet, resulting in a relatively large noise at the air inlet of the vacuum pump. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the technical solution adopted by the present invention to solve its technical problems is: a Roots screw vacuum unit for the power industry, including: a bracket, a Roots vacuum pump is fixedly connected to the top of the bracket, and a screw vacuum pump is fixedly connected to one side of the top of the bracket away from the Roots vacuum pump;

[0005] The Roots screw vacuum unit for the power industry further includes:

[0006] A pretreatment mechanism, the bottom of the pretreatment mechanism is fixedly connected to the top of the Roots vacuum pump;

[0007] The pretreatment mechanism includes a filtering component, the bottom of the filtering component is fixedly connected to the top of the Roots vacuum pump, a connecting pipe is fixedly connected to the top of the filtering component, a driving block is fixedly connected to one side of the outer wall of the connecting pipe close to the screw vacuum pump, a rotating rod is rotatably connected to one end of the driving block close to the connecting pipe, and a cleaning component is slidably connected to the outer wall of the rotating rod;

[0008] An auxiliary cooling mechanism, the bottom of the auxiliary cooling mechanism is fixedly connected to the top of the bracket;

[0009] The auxiliary cooling mechanism includes an isolation box. The bottom of the isolation box is fixedly connected to the top of the bracket. An air inlet pipe is fixedly connected to the inner wall of the isolation box. A cooling component is fixedly connected to one side of the inner wall of the air inlet pipe close to the connecting pipe. A liquid supplement component is fixedly connected to one side of the inner wall of the isolation box close to the cooling component.

[0010] Further, an air outlet pipe is fixedly connected to the bottom of the screw vacuum pump. A transmission pipe is fixedly connected to the outer wall of the roots vacuum pump. One end of the transmission pipe away from the roots vacuum pump is fixedly connected to the top of the screw vacuum pump.

[0011] Further, the pretreatment mechanism further includes a spiral baffle. The outer wall of the spiral baffle is fixedly connected to the inner wall of the connecting pipe. Vent holes are symmetrically formed in the top of the spiral baffle. One end of the connecting pipe away from the roots vacuum pump is fixedly connected to the top of the screw vacuum pump. The air in the working environment is preliminarily treated to capture oil mist and dust in the air, reduce the entry of dust and oil mist into the roots vacuum pump, keep the air dry and free of debris, maintain the self-cleaning effect, extend the cleaning and maintenance time of the equipment, and at the same time, the air flow rate is slowed down through the blocking effect of the spiral baffle when entering the connecting pipe, reducing the impact on the inner wall of the air inlet, thereby reducing noise.

[0012] Further, the auxiliary cooling mechanism further includes a diversion pipe. The top of the diversion pipe is fixedly connected to the bottom of the connecting pipe. The bottom of the diversion pipe is fixedly connected to the top of the air inlet pipe. Liquid outlet holes are uniformly formed in the bottom of the air inlet pipe. The inner wall of the air inlet pipe is fixedly connected to the outer wall of the transmission pipe. The cooling component regularly cleans the surface of the transmission pipe and wets the surface of the transmission pipe, playing a role in enhancing the cooling effect. After the cooling component is close to the liquid supplement component, the cooling component is replenished with cleaning liquid, enabling the cooling component to be used for a long time, reducing the supervision work of the staff, and maintaining the cleaning and cooling of the transmission pipe.

[0013] Further, the filtering component includes an outward expanding pipe. The bottom of the outward expanding pipe is fixedly connected to the top of the roots vacuum pump. A filter plate is fixedly connected to the inner wall of the outward expanding pipe. Water collecting holes are uniformly formed in the edge of the top of the filter plate. A central shaft is rotatably connected to the top of the filter plate. A sweeping rod is rotatably connected to the top of the central shaft. A conical plate is fixedly connected to the top of the filter plate. The outer wall of the sweeping rod is in contact with the top of the conical plate. A water collecting groove is fixedly connected to one side of the inner wall of the outward expanding pipe away from the filter plate, so that the excess water of the water-absorbing material at the top of the conical plate is squeezed and flows along the conical plate onto the filter plate, and the water flows into the water collecting groove along the water collecting holes for collection, enabling the air containing water vapor to enter the roots vacuum pump after being dried, preventing water vapor and dust from entering the roots vacuum pump, treating the air in different usage environments, and preventing problems inside the unit.

[0014] Furthermore, the cleaning component includes a sliding sleeve, the inner wall of the sliding sleeve is slidably connected to the outer wall of the rotating rod, the outer wall of the sliding sleeve is fixedly connected to a housing, a convex block is fixedly connected to the bottom of the inner wall of the housing, one end of the sliding sleeve close to the housing is rotatably connected to a cleaning block, grooves are symmetrically formed on the outer wall of the cleaning block, and the protrusions at both ends of the cleaning block are in contact with the bottom of the spiral baffle to scrape off oil stains. The sponge strip is filled with cleaning liquid and applies the cleaning liquid to the bottom of the spiral baffle. As the rotating rod rotates and the cleaning block moves, the sliding sleeve gradually moves downward, enabling the cleaning block to clean the bottom of the spiral baffle. After the upper end is used up, it is rotated 180 degrees and used again, and the sliding sleeve rises again. This process is repeated to keep the bottom of the spiral baffle clean, while keeping the air vents unblocked, ensuring the air permeability of the spiral baffle, and maintaining smooth air flow during the operation of the Roots vacuum pump.

[0015] Furthermore, the cooling component includes a telescopic column, one end of the telescopic column is fixedly connected to the inner wall of the isolation box, the other end of the telescopic column is fixedly connected to a cleaning groove, scraping strips are evenly arranged on the inner wall of the cleaning groove, the outer wall of the scraping strip is fixedly connected to the inner wall of the cleaning groove, and a water guiding strip is fixedly connected to one end of the cleaning groove close to the liquid supplementing component. During the reciprocating movement, the surface of the transmission pipe is cleaned and coated, so that the surface of the transmission pipe remains moist. At the same time, the scraping strips clean the stains attached to the surface of the transmission pipe, capture dust, sundries and oil stains during the passage of the air flow, enable the air flow to be cleaned, and at the same time dissipate heat from the transmission pipe under the action of the air flow, saving energy consumption. The excess water is concentrated at the bottom of the air inlet pipe and flows into the isolation box through the liquid outlet hole.

[0016] Furthermore, the liquid supplementing component includes a box body, the outer wall of the box body is fixedly connected to the inner wall of the isolation box, a motor is fixedly connected to the outer wall of the box body, a rotating piece is rotatably connected to one end of the motor close to the box body, a V-shaped piece is rotatably connected to one side of the inner wall of the box body close to the rotating piece, a spring is fixedly connected to the bottom of the inner wall of the box body, and a partition plate is fixedly connected to the top of the spring. The outer wall of the partition plate is slidably connected to the inner wall of the box body.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. A large amount of dust is mixed in the air. Therefore, the dust will contaminate the pump oil of the vacuum pump. If the degree of pump oil contamination is excessive, it is very likely that the pump body will be stuck. The present invention captures the oil mist and dust in the air by setting a pretreatment mechanism to preliminarily treat the air in the working environment, reducing the entry of dust and oil mist into the Roots vacuum pump, keeping the air dry and free of debris, then maintaining the self-cleaning effect, extending the cleaning and maintenance time of the equipment. At the same time, when the air flow enters the connecting pipe and passes through the blocking effect of the spiral baffle, the air flow rate is slowed down, reducing the impact on the inner wall of the air inlet, thereby reducing noise.

[0019] 2. The present invention enhances the cooling effect by setting up an auxiliary cooling mechanism. The cooling component regularly cleans the surface of the transmission pipe and wets the surface of the transmission pipe. After the cooling component approaches the liquid supplement component, the cooling component is replenished with cleaning liquid, enabling the cooling component to be used for a long time, reducing the supervision work of staff, and maintaining the cleaning and cooling of the transmission pipe.

[0020] 3. The present invention sets up a cleaning component. The protrusions at both ends of the cleaning block fit with the bottom of the spiral baffle to scrape off oil stains. The sponge strip is filled with cleaning liquid and applies the cleaning liquid to the bottom of the spiral baffle. As the rotating rod rotates and the cleaning block moves, the sliding sleeve gradually moves downward, enabling the cleaning block to clean the bottom of the spiral baffle. After the upper end is used up, it is rotated 180 degrees and used again, and the sliding sleeve rises again. This process is repeated to keep the bottom of the spiral baffle clean, and at the same time, keep the ventilation holes unblocked, ensure the air permeability of the spiral baffle, and maintain smooth air flow when the Roots vacuum pump is working.

[0021] 4. The present invention sets up a cooling component. The cleaning groove is close to the transmission pipe. During the reciprocating movement, it cleans and applies to the surface of the transmission pipe, keeping the surface of the transmission pipe wet. At the same time, the scraping strip cleans the stains attached to the surface of the transmission pipe, captures dust, debris, and oil stains during the passage of air flow, enables the air flow to be cleaned, and at the same time dissipates heat from the transmission pipe under the action of the air flow, saving energy consumption. The excess water is concentrated at the bottom of the intake pipe and flows into the isolation box through the liquid outlet hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the present invention;

[0023] Figure 2 is a rear view of the present invention;

[0024] Figure 3 is a partial schematic structural diagram of the present invention;

[0025] Figure 4 is a schematic structural diagram of the pretreatment mechanism of the present invention;

[0026] Figure 5 is a schematic structural diagram of the auxiliary cooling mechanism of the present invention;

[0027] Figure 6 is a schematic structural diagram of the filtration component of the present invention;

[0028] Figure 7 is a schematic structural diagram of the cleaning component of the present invention;

[0029] Figure 8 is a schematic structural diagram of the cooling component of the present invention;

[0030] Figure 9 This is a schematic structural diagram of the fluid replenishment component of the present invention.

[0031] In the figure: 1. Support; 2. Roots vacuum pump; 3. Pretreatment mechanism; 301. Filter assembly; 3011. Outer expansion pipe; 3012. Filter plate; 3013. Water collecting hole; 3014. Central shaft; 3015. Sweeping rod; 3016. Conical plate; 3017. Water collecting tank; 302. Connecting pipe; 303. Driving block; 304. Rotating rod; 305. Cleaning component; 3051. Sliding sleeve; 3052. Housing; 3053. Cleaning block; 3054. Groove; 3055. Protrusion; 306. Spiral baffle; 307. Ventilation hole; 4. Auxiliary cooling mechanism; 401. Isolation box; 402. Intake pipe; 403. Diversion pipe; 404. Liquid outlet hole; 405. Cooling component; 4051. Telescopic column; 4052. Cleaning groove; 4053. Scraping strip; 4054. Water diversion strip; 406. Fluid replenishment component; 4061. Box body; 4062. Motor; 4063. Rotating piece; 4064. V-shaped piece; 4065. Spring; 4066. Partition board; 5. Transmission pipe; 6. Exhaust pipe; 7. Screw vacuum pump. Specific embodiments

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are given for the purpose of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations will be obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

[0033] Embodiment 1, please refer to Figures 1 - 5 , the present invention provides a technical solution: A Roots-screw vacuum unit for the power industry is described as follows.

[0034] It includes: a support 1, a Roots vacuum pump 2 is fixedly connected to the top of the support 1, and a screw vacuum pump 7 is fixedly connected to one side of the top of the support 1 away from the Roots vacuum pump 2;

[0035] The Roots-screw vacuum unit for the power industry further includes:

[0036] A pretreatment mechanism 3, the bottom of the pretreatment mechanism 3 is fixedly connected to the top of the Roots vacuum pump 2;

[0037] An auxiliary cooling mechanism 4, the bottom of the auxiliary cooling mechanism 4 is fixedly connected to the top of the support 1;

[0038] The bottom of the screw vacuum pump 7 is fixedly connected to an air outlet pipe 6, and the outer wall of the roots vacuum pump 2 is fixedly connected to a transmission pipe 5. One end of the transmission pipe 5 away from the roots vacuum pump 2 is fixedly connected to the top of the screw vacuum pump 7.

[0039] During operation, the roots vacuum pump 2 and the screw vacuum pump 7 are turned on. The gas in the air first enters from the auxiliary cooling mechanism 4, and then enters the pretreatment mechanism 3. The treated air enters the roots vacuum pump 2, mainly filtering the oil stains and dust in the air entering the roots vacuum pump 2, reducing the attachment of sundries inside the roots vacuum pump 2 and the screw vacuum pump 7, and extending the service life of the roots vacuum unit. Then, it enters the screw vacuum pump 7 through the transmission pipe 5. At the same time, the air entering the auxiliary cooling mechanism 4 can cool the transmission pipe 5 by air cooling. The auxiliary cooling mechanism 4 cleans and wets the surface of the transmission pipe 5, and keeping the transmission pipe 5 clean can ensure its heat dissipation effect.

[0040] The pretreatment mechanism 3 includes a filtering component 301. The bottom of the filtering component 301 is fixedly connected to the top of the roots vacuum pump 2. The top of the filtering component 301 is fixedly connected to a connecting pipe 302. One side of the outer wall of the connecting pipe 302 close to the screw vacuum pump 7 is fixedly connected to a driving block 303. One end of the driving block 303 close to the connecting pipe 302 is rotatably connected to a rotating rod 304. The outer wall of the rotating rod 304 is slidably connected to a cleaning component 305; The pretreatment mechanism 3 further includes a spiral baffle 306. The outer wall of the spiral baffle 306 is fixedly connected to the inner wall of the connecting pipe 302. The top of the spiral baffle 306 is symmetrically provided with ventilation holes 307. The ventilation holes 307 are staggered and symmetrically arranged on the spiral baffle 306. After the air enters the connecting pipe 302, through the action of the spiral baffle 306, the oil mist in the air can better adhere to the bottom of the spiral baffle 306. One end of the connecting pipe 302 away from the roots vacuum pump 2 is fixedly connected to the top of the screw vacuum pump 7.

[0041] The air enters the connecting pipe 302 from the auxiliary cooling mechanism 4. Due to the complex on-site working environment, it may contain oil mist and dust. The airflow containing oil mist and dust enters the connecting pipe 302. Through the diversion of the spiral baffle 306, the components such as oil mist in the air first adhere to the bottom of the spiral baffle 306, and then the airflow mixed with dust enters the filtering component 301 and then enters the roots vacuum pump 2, preliminarily treating the air in the working environment, capturing the oil mist and dust in the air, reducing the entry of dust and oil mist into the roots vacuum pump 2, keeping the air dry and free of sundries, maintaining the self-cleaning effect, and extending the cleaning and maintenance time of the equipment. At the same time, when the airflow enters the connecting pipe 302 and passes through the blocking effect of the spiral baffle 306, the air flow rate is slowed down, reducing the impact on the inner wall of the air inlet, thereby reducing noise.

[0042] The auxiliary cooling mechanism 4 includes an isolation box 401. The bottom of the isolation box 401 is fixedly connected to the top of the bracket 1. An air inlet pipe 402 is fixedly connected to the inner wall of the isolation box 401. The cross-sectional shape of the air inlet pipe 402 is T-shaped. A cooling component 405 is fixedly connected to one side of the inner wall of the air inlet pipe 402 close to the connecting pipe 302. A liquid supplementing component 406 is fixedly connected to one side of the inner wall of the isolation box 401 close to the cooling component 405. The auxiliary cooling mechanism 4 further includes a diversion pipe 403. The top of the diversion pipe 403 is fixedly connected to the bottom of the connecting pipe 302. The bottom of the diversion pipe 403 is fixedly connected to the top of the air inlet pipe 402. Liquid outlet holes 404 are evenly formed in the bottom of the air inlet pipe 402. The inner wall of the air inlet pipe 402 is fixedly connected to the outer wall of the transmission pipe 5.

[0043] The gas entering the Roots vacuum pump 2 enters the screw vacuum pump 7 through the transmission pipe 5. At the same time, the outside air enters the air inlet pipe 402 and contacts the surface of the transmission pipe 5, taking away the heat on the surface of the transmission pipe 5, thereby playing a role in cooling the transmission pipe 5. Since the oil mist and dust in the air are in long-term contact with the transmission pipe 5, they are easily attached to the surface of the transmission pipe 5, thus making the heat dissipation effect of the transmission pipe 5 worse and affecting the cooling effect. Therefore, during daily work, the cooling component 405 regularly cleans the surface of the transmission pipe 5 and wets the surface of the transmission pipe 5, playing a role in enhancing the cooling effect. After the cooling component 405 is close to the liquid supplementing component 406, the cleaning liquid of the cooling component 405 is supplemented, enabling the cooling component 405 to be used for a long time, reducing the supervision work of the staff, and keeping the transmission pipe 5 clean and cooled.

[0044] Example 2, please refer to Figures 1 - 9 , the present invention provides a technical solution: on the basis of Example 1, the filtering component 301 includes an outward expanding pipe 3011. The bottom of the outward expanding pipe 3011 is fixedly connected to the top of the Roots vacuum pump 2. A filter plate 3012 is fixedly connected to the inner wall of the outward expanding pipe 3011. Water collecting holes 3013 are evenly formed in the edge of the top of the filter plate 3012. A central shaft 3014 is rotatably connected to the top of the filter plate 3012. A sweeping rod 3015 is rotatably connected to the top of the central shaft 3014. The sweeping rod 3015 is made of an elastic material. A conical plate 3016 is fixedly connected to the top of the filter plate 3012. Filter holes are formed in the surface of the conical plate 3016, and a breathable water-absorbing material is laid and fixedly placed. The outer wall of the sweeping rod 3015 is in contact with the top of the conical plate 3016. A water collecting tank 3017 is fixedly connected to one side of the inner wall of the outward expanding pipe 3011 away from the filter plate 3012.

[0045] The air entering the intake pipe 402 and the connecting pipe 302 contains a certain amount of water vapor, which may accumulate on the surface of the conical plate 3016. The central shaft 3014 drives the sweeping rod 3015 to rotate, causing the sweeping rod 3015 to squeeze the top of the conical plate 3016, so that the excess water in the water-absorbing material at the top of the conical plate 3016 is squeezed and flows along the conical plate 3016 to the filter plate 3012, and the water flows into the water collecting tank 3017 along the water collecting holes 3013 for collection. The air containing water vapor enters the Roots vacuum pump 2 after being dried, preventing water vapor and dust from entering the Roots vacuum pump 2, treating the air in different use environments, and avoiding problems inside the unit.

[0046] The cleaning assembly 305 includes a sliding sleeve 3051. The inner wall of the sliding sleeve 3051 is slidably connected to the outer wall of the rotating rod 304. The outer wall of the sliding sleeve 3051 is fixedly connected to a housing 3052. The housing 3052 contains a cleaning liquid for cleaning oil stains. A convex block 3055 is fixedly connected to the bottom of the inner wall of the housing 3052. One end of the sliding sleeve 3051 close to the housing 3052 is rotatably connected to a cleaning block 3053. Symmetric grooves 3054 are formed on the outer wall of the cleaning block 3053, and sponge strips are placed inside the grooves 3054.

[0047] After being used for a period of time, stains gradually adhere to the bottom of the spiral baffle 306. At this time, the rotating rod 304 rotates, causing the cleaning block 3053 to clean along the bottom of the spiral baffle 306. The protrusions at both ends of the cleaning block 3053 fit with the bottom of the spiral baffle 306 to scrape off the oil stains. The sponge strips are filled with the cleaning liquid and smear the cleaning liquid on the bottom of the spiral baffle 306. As the rotating rod 304 rotates and the cleaning block 3053 moves, the sliding sleeve 3051 gradually moves downward, causing the cleaning block 3053 to clean the bottom of the spiral baffle 306. After the upper end is used up, it is rotated 180 degrees and used again, and the sliding sleeve 3051 rises again. This is repeated to keep the bottom of the spiral baffle 306 clean, and at the same time keep the ventilation holes 307 unblocked, ensure the air permeability of the spiral baffle 306, and keep the air flow smooth when the Roots vacuum pump 2 is working.

[0048] The temperature reduction assembly 405 includes a telescopic column 4051. One end of the telescopic column 4051 is fixedly connected to the inner wall of the isolation box 401, and the other end of the telescopic column 4051 is fixedly connected to a cleaning groove 4052. The cleaning groove 4052 and the scraping strip 4053 are C-shaped. The surface of the cleaning groove 4052 is wrapped with a water-absorbing cloth. The inner wall of the cleaning groove 4052 is uniformly provided with scraping strips 4053. The scraping strips 4053 are made of elastic material, and the outer wall of the scraping strips 4053 is fixedly connected to the inner wall of the cleaning groove 4052. One end of the cleaning groove 4052 close to the liquid replenishing assembly 406 is fixedly connected to a water guiding strip 4054, and the water guiding strip 4054 is made of water-absorbing material.

[0049] The liquid replenishing component 406 includes a box body 4061. Two holes are provided at the position of the box body 4061 corresponding to the water guiding strip 4054, which are blocked by the V-shaped piece initially. The outer wall of the box body 4061 is fixedly connected to the inner wall of the isolation box 401. A motor 4062 is fixedly connected to the outer wall of the box body 4061. One end of the motor 4062 close to the box body 4061 is rotatably connected to a rotating piece 4063. The motor 4062 drives the rotating piece 4063 to rotate, which can control the rotation angle of the V-shaped piece 4064. After the water guiding strip 4054 is inserted, the V-shaped piece 4064 rotates. At this time, the rotating piece 4063 rotates away from the V-shaped piece 4064. One side of the inner wall of the box body 4061 close to the rotating piece 4063 is rotatably connected to a V-shaped piece 4064. A spring 4065 is fixedly connected to the bottom of the inner wall of the box body 4061. The top of the spring 4065 is fixedly connected to a partition plate 4066. The spring 4065 drives the partition plate 4066 to rise as the cleaning water decreases, so that the water guiding strip 4054 can always keep in contact with the cleaning water when inserted. The outer wall of the partition plate 4066 is slidably connected to the inner wall of the box body 4061.

[0050] After the air flow enters the air inlet pipe 402, the cleaning tank 4052 approaches the box body 4061 driven by the telescopic column 4051. The water guiding strip 4054 is inserted into the hole of the box body 4061, and the water containing cleaning liquid inside the box body 4061 is guided to the cleaning tank 4052 through the water guiding strip 4054. Subsequently, driven by the telescopic column 4051, the cleaning tank 4052 approaches the transmission pipe 5, and cleans and coats the surface of the transmission pipe 5 during the reciprocating movement, so that the surface of the transmission pipe 5 remains wet. At the same time, the scraping strip 4053 cleans the stains attached to the surface of the transmission pipe 5, captures dust, sundries and oil stains during the passage of the air flow, enables the air flow to be cleaned, and at the same time dissipates heat from the transmission pipe 5 under the action of the air flow, saving energy consumption. The excess water is concentrated at the bottom of the air inlet pipe 402 and flows into the isolation box 401 through the liquid outlet hole 404.

[0051] The specific working process is as follows:

[0052] Start the Roots vacuum pump 2 and the screw vacuum pump 7. The gas in the air first enters from the auxiliary cooling mechanism 4 and then enters the pretreatment mechanism 3. The air enters the connecting pipe 302 from the auxiliary cooling mechanism 4. Due to the complex on-site working environment, it may contain oil mist and dust. The airflow containing oil mist and dust enters the connecting pipe 302. Through the diversion of the spiral baffle 306, the components such as oil mist in the air first adhere to the bottom of the spiral baffle 306, and then the airflow mixed with dust enters the filter assembly 301 and then enters the Roots vacuum pump 2 to preliminarily process the air in the working environment, capture the oil mist and dust in the air, reduce the entry of dust and oil mist into the Roots vacuum pump 2, keep the air dry and free of debris. The gas entering the Roots vacuum pump 2 enters the screw vacuum pump 7 through the transmission pipe 5. At the same time, the outside air enters the intake pipe 402 and contacts the surface of the transmission pipe 5 to take away the heat on the surface of the transmission pipe 5, thus playing a role in cooling the transmission pipe 5. Since the oil mist and dust in the air are in long-term contact with the transmission pipe 5, they are easily attached to the surface of the transmission pipe 5, resulting in a poor heat dissipation effect of the transmission pipe 5 and affecting the cooling effect. Therefore, in daily work, the cooling component 405 regularly cleans the surface of the transmission pipe 5 and wets the surface of the transmission pipe 5 to enhance the cooling effect. After the cooling component 405 is close to the liquid supplement component 406, the cooling component 405 is replenished with the cleaning liquid.

[0053] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without making creative efforts shall fall within the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A Roots screw vacuum unit for the power industry, specifically comprising: The bracket (1) is characterized in that: a Roots vacuum pump (2) is fixedly connected to the top of the bracket (1), and a screw vacuum pump (7) is fixedly connected to the side of the top of the bracket (1) away from the Roots vacuum pump (2); The Roots screw vacuum unit for the power industry also includes: A pretreatment mechanism (3), wherein the bottom of the pretreatment mechanism (3) is fixedly connected to the top of the Roots vacuum pump (2); The pretreatment mechanism (3) comprises a filter assembly (301), the bottom of the filter assembly (301) is fixedly connected to the top of the Roots vacuum pump (2), the top of the filter assembly (301) is fixedly connected to a connecting pipe (302), a driving block (303) is fixedly connected to the side of the outer wall of the connecting pipe (302) close to the screw vacuum pump (7), the driving block (303) is rotatably connected to an end of the driving block (303) close to the connecting pipe (302), and a cleaning assembly (305) is slidably connected to the outer wall of the rotating rod (304); An auxiliary cooling mechanism (4), the bottom of the auxiliary cooling mechanism (4) being fixedly connected to the top of the bracket (1); The auxiliary cooling mechanism (4) comprises an isolation box (401), the bottom of the isolation box (401) is fixedly connected to the top of the bracket (1), the inner wall of the isolation box (401) is fixedly connected to an air intake pipe (402), the inner wall of the air intake pipe (402) is fixedly connected to a cooling component (405) on one side close to the connecting pipe (302), and the inner wall of the isolation box (401) is fixedly connected to a fluid replenishment component (406) on one side close to the cooling component (405).

2. The Roots screw vacuum unit for the power industry according to claim 1, characterized in that: The bottom of the screw vacuum pump (7) is fixedly connected to an air outlet pipe (6), the outer wall of the Roots vacuum pump (2) is fixedly connected to a transmission pipe (5), and one end of the transmission pipe (5) away from the Roots vacuum pump (2) is fixedly connected to the top of the screw vacuum pump (7).

3. The Roots screw vacuum unit for the power industry according to claim 1, characterized in that: The pretreatment mechanism (3) further comprises a spiral baffle (306), the outer wall of which is fixedly connected to the inner wall of the connecting pipe (302), the top of which is symmetrically provided with air holes (307), and one end of the connecting pipe (302) away from the Roots vacuum pump (2) is fixedly connected to the top of the screw vacuum pump (7).

4. The Roots screw vacuum unit for the power industry according to claim 1, characterized in that: The auxiliary cooling mechanism (4) further comprises a guide pipe (403), the top of the guide pipe (403) being fixedly connected to the bottom of the connecting pipe (302), the bottom of the guide pipe (403) being fixedly connected to the top of the air intake pipe (402), the bottom of the air intake pipe (402) being evenly provided with liquid outlet holes (404), and the inner wall of the air intake pipe (402) being fixedly connected to the outer wall of the transmission pipe (5).

5. The Roots screw vacuum unit for the power industry according to claim 1, characterized in that: The filter assembly (301) comprises an external expansion tube (3011), the bottom of the external expansion tube (3011) is fixedly connected to the top of the Roots vacuum pump (2), the inner wall of the external expansion tube (3011) is fixedly connected to a filter plate (3012), the edge of the top of the filter plate (3012) is evenly provided with water collection holes (3013), the top of the filter plate (3012) is rotatably connected to a central shaft (3014), the top of the central shaft (3014) is rotatably connected to a sweep rod (3015), the top of the filter plate (3012) is fixedly connected to a conical plate (3016), the outer wall of the sweep rod (3015) is in contact with the top of the conical plate (3016), and the inner wall of the external expansion tube (3011) is fixedly connected to a water collection tank (3017) on a side away from the filter plate (3012).

6. The Roots screw vacuum unit for the power industry according to claim 1, characterized in that: The cleaning component (305) comprises a sliding sleeve (3051), the inner wall of the sliding sleeve (3051) is slidably connected to the outer wall of the rotating rod (304), the outer wall of the sliding sleeve (3051) is fixedly connected to a shell (3052), the bottom of the inner wall of the shell (3052) is fixedly connected to a protrusion (3055), and one end of the sliding sleeve (3051) close to the shell (3052) is rotatably connected to a cleaning block (3053), and the outer wall of the cleaning block (3053) is symmetrically provided with grooves (3054).

7. The Roots screw vacuum unit for the power industry according to claim 1, characterized in that: The cooling component (405) comprises a telescopic column (4051), one end of the telescopic column (4051) is fixedly connected to the inner wall of the isolation box (401), the other end of the telescopic column (4051) is fixedly connected to a cleaning groove (4052), the inner wall of the cleaning groove (4052) is evenly provided with scraping strips (4053), the outer wall of the scraping strip (4053) is fixedly connected to the inner wall of the cleaning groove (4052), and one end of the cleaning groove (4052) close to the fluid replenishing component (406) is fixedly connected to a water guide strip (4054).

8. The Roots screw vacuum unit for the power industry according to claim 1, characterized in that: The fluid replenishing component (406) comprises a box body (4061), the outer wall of the box body (4061) is fixedly connected to the inner wall of the isolation box (401), the outer wall of the box body (4061) is fixedly connected to a motor (4062), and one end of the motor (4062) close to the box body (4061) is rotatably connected to a rotating piece (4063).

9. The Roots screw vacuum unit for the power industry according to claim 8, characterized in that: A V-shaped plate (4064) is rotatably connected to one side of the inner wall of the box body (4061) close to the rotating plate (4063), a spring (4065) is fixedly connected to the bottom of the inner wall of the box body (4061), a partition (4066) is fixedly connected to the top of the spring (4065), and an outer wall of the partition (4066) is slidably connected to the inner wall of the box body (4061).

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