CN215333435U - Roots screw vacuum unit - Google Patents

Abstract

The utility model relates to the technical field of vacuum pump equipment, in particular to a roots screw vacuum unit, which comprises a mounting table, wherein a screw pump is fixed at the right side end of the outer wall of the top end of the mounting table, a roots pump is fixedly connected at the left side end of the outer wall of the top end of the mounting table, the screw pump is connected with the roots pump through a gas transmission pipeline, a noise reduction filter pipe is connected with the gas transmission pipeline at the gas inlet of the screw pump and the roots pump, a filter plate is installed at the right side end of the inner wall of the noise reduction filter pipe, a rotary drum is arranged at the left side end of the filter plate, fan blades are fixed at the end wall of the outer side of the rotary drum, a cleaning brush is installed at the left side end of the fan blades, the cleaning brush is matched with the filter plate for use, a dust exhaust pipe is connected at the right side end of the outer wall of the bottom end of the noise reduction filter pipe, dust in the air can be filtered before entering the vacuum pump in the mode, so as to prevent the dust from polluting pump oil in the vacuum pump, the service life of the vacuum pump is effectively prolonged.

Description

Roots screw vacuum unit

Technical Field

The utility model relates to the technical field of vacuum pump equipment, in particular to a Roots screw vacuum unit.

Background

With the rapid increase of the solvent recovery in chemical industry and pharmaceutical industry and the vacuum treatment process requirement of high-grade new products in semiconductor and microelectronic industry. The traditional vacuum pump can not meet the vacuum requirement in the more and more complex production process, a plurality of groups of vacuum pumps are required to be installed, the vacuum pumps with different functions are combined and transformed to form a combined vacuum unit, the advantages of different vacuum pumps can be integrated, and the multifunctional vacuum requirement is provided; the existing screw vacuum pump is mainly applied to a high-purity vacuum process, has extremely high vacuum degree, can adapt to severe working conditions, has the capability of extracting coagulability and particulate matter-containing gas, is particularly suitable for clean environment, is easy to carry out antiseptic treatment, is an updated product of the traditional vacuum pump, and has great market prospect in the future; the roots vacuum pump is one of the main air pumping devices for obtaining medium and high vacuum pumps at present, has the greatest advantages of higher air pumping speed at lower inlet pressure, relatively high ultimate vacuum, stable running performance, long service life and low maintenance cost.

Therefore, the prior art uses the roots vacuum pump as a main pump and the screw vacuum pump as a backing pump group to form a vacuum unit, the unit can replace the prior vacuum pump using a water ring pump, a reciprocating pump, a water injection pump and the like as a vacuum unit of the backing pump, and because the screw pump can adapt to long-term work within the range of atmospheric pressure to dozens of pascals, the roots screw vacuum unit can be used as a novel unit to replace the prior traditional water ring unit, the reciprocating unit and the like, and the pollution and recovery problems of the traditional unit can be well solved, so the type unit is a future trend in the pharmaceutical and chemical industries.

However, current roots screw vacuum unit is when using, because be the transport vacuum air, and mix a large amount of dusts in the air, consequently, the dust can pollute the pump oil of vacuum pump, if pump oil pollution degree is too much, then probably can make the dead condition of card appear in the pump body, and because the air intake of vacuum pump often can be less than air transport pipe's internal diameter when entering into the vacuum pump, consequently the velocity of flow increase that the air can be here, thereby can lead to the impact to the inner wall of air inlet, thereby lead to vacuum pump air inlet department to produce great noise, and the noise can be along with the increase of the live time of vacuum pump and increase.

Therefore, the utility model of the Roots screw vacuum unit is necessary.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a Roots screw vacuum unit, which can remove dust and reduce noise of air before the air enters a vacuum pump through a silencing filter pipe, so as to solve the problems that the dust can pollute pump oil of the vacuum pump when the conventional Roots screw vacuum unit is used, the pump body is possibly blocked if the pollution degree of the pump oil is too much, and the flow rate of the air at the position is increased because the inlet of the vacuum pump is always smaller than the inner diameter of an air conveying pipe when the air enters the vacuum pump, so that impact can be caused on the inner wall of an air inlet, and larger noise is generated at the air inlet of the vacuum pump.

In order to achieve the above purpose, the utility model provides the following technical scheme: the utility model provides a roots's screw vacuum unit, includes the mount table, mount table top outer wall right side end is fixed with the screw pump, mount table top outer wall left side tip fixedly connected with lobe pump, the screw pump passes through gas transmission pipe with the lobe pump and is connected, the screw pump is connected with the amortization filter tube with the gas transmission pipe of lobe pump inlet department, the filter is installed to amortization filter tube inner wall right side tip, filter plate left side tip is equipped with the rotary drum, rotary drum outside end wall is fixed with the flabellum, clean brush is installed to flabellum left side tip, clean brush uses with the filter cooperation, amortization filter tube bottom outer wall right side tip is connected with the dust exhaust pipe, the dust exhaust pipe sets up in the flabellum below, amortization filter tube left side tip is equipped with the amortization subassembly, the amortization subassembly includes the division board.

Preferably, the rotating shaft is installed at the center of the right end of the filter plate, the rotating drum is connected with the rotating shaft in a sleeved mode, and the rotating drum is matched with the rotating shaft for use.

Preferably, the cleaning brushes are connected with the outer wall of the left side end of each fan blade in a rivet connection mode, the left side end portions of the cleaning brushes are abutted to the outer wall of the right side end of each filter plate, the number of the fan blades is four, and the number of the cleaning brushes is the same as that of the fan blades.

Preferably, the outer wall of the bottom end of the silencing and filtering pipe is provided with a rotating plate at the joint with the dust exhaust pipe, the rotating plate is rotatably connected with the outer wall of the bottom end of the silencing and filtering pipe in a hinged connection mode, and a thumb cylinder is arranged below the rotating plate.

Preferably, bent type gas accuse telescopic link is installed to thumb cylinder left side tip, the rotor plate bottom is equipped with the spout, installs the slider in the spout, slider bottom outer wall is fixed with articulated seat through the mode of spot welding, bent type gas accuse telescopic link upper end is connected with articulated seat bottom portion is articulated.

Preferably, the left end part of the end wall on the inner side of the silencing filter pipe is fixedly provided with a silencing cotton layer in a bonding mode, and the inner wall of the silencing cotton layer is transversely provided with a partition plate.

Preferably, the sound piece is inhaled with the cotton in situ wall of amortization is installed at division board both ends, installs the sound piece of inhaling of the cotton in situ wall department of amortization and is even staggered arrangement mode, inhale sound piece right side end outer wall fixedly connected with arc buffer block, the arc buffer block uses with inhaling the cooperation of sound piece.

Preferably, connecting flanges are fixed at two side ends of the silencing filter pipe, a pressure gauge is arranged at the front end of the Roots pump, and the pressure gauge is matched with the gas transmission pipeline for use.

The utility model has the beneficial effects that:

1. in the utility model, when air flows into the silencing filter pipe, the fan blades can be driven to rotate on the rotating shaft, the arranged filter plate can filter the air, the right side end of the filter plate can be cleaned by the cleaning brush when the arranged fan blades rotate, the filter holes are prevented from being blocked by dust, and when the dust is accumulated to a certain amount, the thumb cylinder can be controlled to enable the curved pneumatic control telescopic rod to contract, the curved pneumatic control telescopic rod can pull the rotating plate downwards through the sliding block and the hinge seat when contracting, at this time, the bottom end of the silencing filter pipe forms a rear dust exhaust port, dust filtered by the filter plate can enter the dust exhaust pipe through the dust exhaust port, the dust exhaust pipe can exhaust the dust, can filter the dust in the air earlier before the air gets into the vacuum pump through above-mentioned mode to prevent that the dust from polluting the pump oil in the vacuum pump, make the life of vacuum pump effectively improved.

2. According to the utility model, when air flows through the separation plate, the separation plate can separate the air, the flow speed of the separated air can be initially reduced, the air can be buffered again by the sound absorption block and the arc-shaped buffer block, so that the flow speed of the air can be reduced again, and meanwhile, the noise generated when the air impact arc-shaped buffer block and the sound absorption block are absorbed by the sound absorption cotton layer and the sound absorption block, so that the flow speed of the air entering the screw pump or the roots pump can be effectively reduced, and the noise generated when the air enters the screw pump or the roots pump can be effectively reduced.

Drawings

FIG. 1 is a schematic view of the front view of the present invention;

FIG. 2 is a schematic sectional view of the muffler filter tube in the front view;

FIG. 3 is an enlarged schematic view of FIG. 2A of the present invention;

FIG. 4 is a side view of the filter plate according to the present invention;

FIG. 5 is a side view of the muffler assembly of the present invention;

fig. 6 is a schematic perspective view of the sound absorption block of the present invention.

In the figure: 1. an installation table; 2. a screw pump; 3. a roots pump; 4. a pressure gauge; 5. a silencing filter pipe; 5-1, connecting a flange; 5-2, rotating the plate; 5-3, a dust exhaust pipe; 5-4, a thumb cylinder; 5-5, a curved pneumatic control telescopic rod; 5-6, a sliding block; 5-7, a hinged seat; 6. a filter plate; 6-1, fan blades; 6-2, cleaning a brush; 6-3, a rotating drum; 6-4, a rotating shaft; 7. a noise reduction assembly; 7-1, a partition plate; 7-2, a sound-deadening cotton layer; 7-3, a sound absorption block; 7-4, and an arc buffer block.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Referring to the attached figures 1-6, the roots screw vacuum unit provided by the utility model comprises a mounting table 1, wherein a screw pump 2 is fixed at the right end of the outer wall at the top end of the mounting table 1, a roots pump 3 is fixedly connected at the left end of the outer wall at the top end of the mounting table 1, the screw pump 2 is connected with the roots pump 3 through a gas pipeline, a noise reduction filter pipe 5 is connected with the gas pipeline at the gas inlet of the screw pump 2 and the roots pump 3, a filter plate 6 is arranged at the right end of the inner wall of the noise reduction filter pipe 5, a rotary drum 6-3 is arranged at the left end of the filter plate 6, a fan blade 6-1 is fixed at the outer end wall of the rotary drum 6-3, a cleaning brush 6-4 is arranged at the left end of the fan blade 6-1, the cleaning brush 6-4 is matched with the filter plate 6, a dust exhaust pipe 5-3 is connected at the right end of the outer wall at the bottom end of the noise reduction filter pipe 5, and the dust exhaust pipe 5-3 is arranged below the fan blade 6-1, the left end part of the silencing filter pipe 5 is provided with a silencing component 7, the silencing component 7 comprises a partition plate 7-1, specifically, the mounting table 1 is a platform for mounting the screw pump 2 and the roots pump 3, the silencing filter pipe 5 is used for removing dust from air before the air enters the screw pump 2 and the roots pump 3, meanwhile, the noise at the air inlet of the screw pump 2 and the Roots pump 3 can be reduced, the filter plate 6 is an air filter screen plate, the dust removing device can filter and remove dust from air, the cleaning brush 6-4 is arranged for cleaning the filter plate 6 and preventing excessive dust adhered to the filter plate 6 from blocking meshes of the filter plate 6, the rotary drum 6-3 is arranged for driving the cleaning brush 6-4 to clean the filter plate 6 when the rotary drum rotates, and the dust discharging pipe 5-3 is arranged for discharging the dust filtered by the filter plate 6.

Furthermore, a rotating shaft 6-2 is installed at the center of the right end of the filter plate 6, a rotating drum 6-3 is connected with the rotating shaft 6-2 in a sleeved mode, the rotating drum 6-3 is matched with the rotating shaft 6-2 for use, and specifically, the rotating drum 6-3 can rotate on the rotating shaft 6-2, so that when air passes through the filter plate 6, the fan blades 6-1 can rotate on the rotating shaft 6-2, and the filter plate 6 can be cleaned by the cleaning brush 6-4;

further, the cleaning brush 6-4 is connected with the outer wall of the left side end of the fan blade 6-1 in a rivet connection mode, the left side end of the cleaning brush 6-4 is abutted against the outer wall of the right side end of the filter plate 6, the number of the fan blades 6-1 is four, the number of the cleaning brush 6-4 is the same as that of the fan blades 6-1, and particularly, the cleaning brush 6-4 is connected with the fan blade 6-1 through rivets so that the cleaning brush 6-4 can be conveniently replaced after the cleaning brush 6-4 is used for a long time;

furthermore, a rotating plate 5-2 is arranged at the joint of the outer wall of the bottom end of the silencing filter pipe 5 and the dust exhaust pipe 5-3, the rotating plate 5-2 is rotatably connected with the outer wall of the bottom end of the silencing filter pipe 5 in a hinged connection mode, a thumb cylinder 5-4 is arranged below the rotating plate 5-2, specifically, the rotating plate 5-2 is arranged so that when dust filtered by the filter plate 6 needs to be exhausted, the rotating plate can rotate downwards, after the rotating plate 5-2 rotates downwards, a dust exhaust port is formed in the inner wall of the bottom end of the silencing filter pipe 5, the dust can enter the dust exhaust pipe 5-3 through the dust exhaust port and then be exhausted through the dust exhaust pipe 5-3, and when dust exhaust is not needed, the rotating plate 5-2 is arranged so that air is prevented from entering the silencing filter pipe 5 and then is exhausted through the dust exhaust pipe 5-3;

further, a curved pneumatic control telescopic rod 5-5 is installed at the left end of the thumb cylinder 5-4, a sliding groove is formed at the bottom end of the rotating plate 5-2, a sliding block 5-6 is installed in the sliding groove, a hinged seat 5-7 is fixed on the outer wall of the bottom end of the sliding block 5-6 in a spot welding mode, the upper end of the curved pneumatic control telescopic rod 5-5 is hinged and connected with the bottom end of the hinged seat 5-7, specifically, the thumb cylinder 5-4 and the curved pneumatic control telescopic rod 5-5 are arranged to control the rotating plate 5-2 to rotate, when the rotating plate 5-2 needs to rotate downwards, the thumb cylinder 5-4 can control the curved pneumatic control telescopic rod 5-5 to contract, and when the curved pneumatic control telescopic rod 5-5 contracts, the rotating plate 5-2 is pulled to rotate downwards through the hinged seat 5-7 and the sliding block 5-6, the sliding block 5-6 and the hinged seat 5-7 are arranged at this time, so that the curved pneumatic control telescopic rod 5-5 is prevented from being locked in the process of pulling the rotating plate 5-2;

furthermore, a silencing cotton layer 7-2 is fixed at the left end part of the end wall of the inner side of the silencing filter pipe 5 in a bonding mode, a partition plate 7-1 is transversely arranged on the inner wall of the silencing cotton layer 7-2, specifically, the arranged silencing cotton layer 7-2 is used for reducing the noise generated when air passes through the silencing filter pipe 5, and the partition plate 7-1 is used for partitioning the air, so that the flow speed of the air can be reduced when the air passes through the silencing filter pipe 5;

furthermore, sound absorption blocks 7-3 are arranged at two ends of the partition plate 7-1 and the inner wall of the sound absorption cotton layer 7-2, the sound absorption blocks 7-3 arranged at the inner wall of the sound absorption cotton layer 7-2 are arranged in an even staggered mode, the outer wall of the right side end of the sound absorption block 7-3 is fixedly connected with arc buffer blocks 7-4, the arc buffer blocks 7-4 are matched with the sound absorption blocks 7-3 for use, and specifically, the arc buffer blocks 7-4 and the sound absorption blocks 7-3 are arranged for buffering air flowing through so as to further reduce the flow speed of the air, meanwhile, the arranged arc-shaped buffer block 7-4 can also reduce the noise generated when air impacts the sound absorption block 7-3, by the mode, the flow speed of the air entering the screw pump 2 and the roots pump 3 can be reduced, so that the noise generated when the air enters the screw pump 2 and the roots pump 3 can be reduced;

furthermore, connecting flanges 5-1 are fixed at two side ends of the silencing filter pipe 5, a pressure gauge 4 is arranged at the front end part of the roots pump 3, the pressure gauge 4 is matched with the gas transmission pipeline for use, specifically, the connecting flange 5-1 is arranged for facilitating the connection of one end of the silencing filter pipe 5 with the gas transmission pipeline and the connection of the other end with the screw pump 2 or the gas inlet of the roots pump 3, and the pressure gauge 4 is arranged for detecting the pressure of the air entering the roots pump 3, so that a user can conveniently adjust the power of the device according to the pressure;

the using process of the utility model is as follows: firstly, the technical personnel need to carry out the connection of the device according to the attached drawing, firstly, air enters a screw pump 2, then the screw pump 2 enters the roots pump 3 through an air conveying pipeline, the roots pump 3 conveys the air to a required position through an exhaust pipe, when the air flows into a silencing filter pipe 5, a fan blade 6-1 is driven to rotate on a rotating shaft 6-2, a set filter plate 6 filters the air, the right side end of the filter plate 6 can be cleaned through a cleaning brush 6-4 when the set fan blade 6-1 rotates, the filter hole is prevented from being blocked by dust, when the dust is accumulated to a certain amount, a thumb cylinder 5-4 can be controlled to enable a curved air control telescopic rod 5-5 to contract, when the curved air control telescopic rod 5-5 contracts, a rotating plate 5-2 can be pulled downwards through a sliding block 5-6 and a hinged seat 5-7, at the moment, a rear dust exhaust port is formed at the bottom end part of the silencing filter pipe 5, dust filtered by the filter plate 6 can enter the dust exhaust pipe 5-3 through the dust exhaust port, the dust exhaust pipe 5-3 can exhaust the dust, after the dust is exhausted, the thumb cylinder 5-4 can control the curved pneumatic control telescopic rod 5-5 to extend out, and the curved pneumatic control telescopic rod 5-5 can enable the rotating plate 5-2 to reset through the sliding block 5-6 and the hinge seat 5-7;

when air flows through the division plate 7-1, the division plate 7-1 can separate the air, the flow speed of the separated air is preliminarily reduced, the sound absorption block 7-3 and the arc-shaped buffer block 7-4 buffer the air again, so that the flow speed of the air is reduced again, meanwhile, the noise generated when the air impact arc-shaped buffer block 7-4 and the sound absorption block 7-3 absorb the noise generated when the air enters the screw pump 2 or the roots pump 3 can be reduced through the noise reduction cotton layer 7-2 and the sound absorption block 7-3, and the noise generated when the air enters the screw pump 2 or the roots pump 3 can be effectively reduced.

The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solution described above. Therefore, any simple modifications or equivalent substitutions made in accordance with the technical solution of the present invention are within the scope of the claims of the present invention.

Claims (8)

1. The utility model provides a roots's screw vacuum unit, includes mount table (1), mount table (1) top outer wall right side end is fixed with screw pump (2), mount table (1) top outer wall left side end fixedly connected with lobe pump (3), screw pump (2) are connected through the gas transmission pipeline with lobe pump (3), screw pump (2) are connected with amortization filter tube (5), its characterized in that with the gas transmission pipeline of lobe pump (3) air inlet department: the improved dust removing device is characterized in that a filter plate (6) is installed at the right side end part of the inner wall of the silencing filter pipe (5), a rotary drum (6-3) is arranged at the left side end part of the filter plate (6), fan blades (6-1) are fixed on the outer side end wall of the rotary drum (6-3), a cleaning brush (6-2) is installed at the left side end part of the fan blades (6-1), the cleaning brush (6-2) is matched with the filter plate (6) for use, a dust removing pipe (5-3) is connected to the right side end part of the outer wall of the bottom end of the silencing filter pipe (5), the dust removing pipe (5-3) is arranged below the fan blades (6-1), a silencing component (7) is arranged at the left side end part of the silencing filter pipe (5), and the silencing component (7) comprises a partition plate (7-1).

2. A roots screw vacuum unit according to claim 1, wherein: the filter plate is characterized in that a rotating shaft (6-4) is installed at the center of the right side end of the filter plate (6), the rotating drum (6-3) is connected with the rotating shaft (6-4) in a sleeved mode, and the rotating drum (6-3) is matched with the rotating shaft (6-4) for use.

3. A roots screw vacuum unit according to claim 1, wherein: the cleaning brush (6-2) is connected with the outer wall of the left side end of the fan blade (6-1) in a rivet connection mode, the left side end of the cleaning brush (6-2) is abutted against the outer wall of the right side end of the filter plate (6), the number of the fan blades (6-1) is four, and the number of the cleaning brush (6-2) is the same as that of the fan blades (6-1).

4. A roots screw vacuum unit according to claim 1, wherein: the outer wall of the bottom end of the silencing and filtering pipe (5) is provided with a rotating plate (5-2) at the joint of the outer wall and the dust exhaust pipe (5-3), the rotating plate (5-2) is rotatably connected with the outer wall of the bottom end of the silencing and filtering pipe (5) in a hinged connection mode, and a thumb cylinder (5-4) is arranged below the rotating plate (5-2).

5. A Roots screw vacuum unit according to claim 4, wherein: bent type gas accuse telescopic link (5-5) is installed to thumb cylinder (5-4) left side tip, rotor plate (5-2) bottom is equipped with the spout, installs slider (5-6) in the spout, slider (5-6) bottom outer wall is fixed with articulated seat (5-7) through the mode of spot welding, bent type gas accuse telescopic link (5-5) upper end and articulated the being connected of articulated seat (5-7) bottom portion.

6. A roots screw vacuum unit according to claim 1, wherein: the left end part of the end wall of the inner side of the silencing filter pipe (5) is fixedly provided with a silencing cotton layer (7-2) in a bonding mode, and the inner wall of the silencing cotton layer (7-2) is transversely provided with a partition plate (7-1).

7. A roots screw vacuum unit according to claim 6, wherein: the sound absorption block (7-3) is installed at the two ends of the separation plate (7-1) and the inner wall of the silencing cotton layer (7-2), the sound absorption blocks (7-3) installed at the inner wall of the silencing cotton layer (7-2) are arranged in an even staggered mode, the outer wall of the right side end of each sound absorption block (7-3) is fixedly connected with an arc-shaped buffer block (7-4), and the arc-shaped buffer blocks (7-4) are matched with the sound absorption blocks (7-3) for use.

8. A roots screw vacuum unit according to claim 1, wherein: connecting flanges (5-1) are fixed at two side ends of the silencing filter pipe (5), a pressure gauge (4) is arranged at the front end of the roots pump (3), and the pressure gauge (4) is matched with a gas pipeline for use.

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