Axial air inlet single-impeller magnetic suspension centrifugal blower

Abstract

The utility model discloses an axial air inlet single-impeller magnetic suspension centrifugal blower, which belongs to the field of blowers and comprises a case, a ventilation pipe is fixedly arranged at the upper end of the case, a filter screen is fixedly arranged at the lower end of the inside of the ventilation pipe, an inclined plate is fixedly arranged at the lower end of the inside of the ventilation pipe, and the filter screen is fixedly arranged on the inclined plate. A filter screen is arranged at the lower end of the interior of a ventilation pipe, the filter screen filters air, dirt and dust in the air are prevented from entering the case, the dirt and the dust are filtered by the filter screen and then enter a dirt collecting box through a conveying pipe, and finally the dirt and the dust are discharged through a blow-off pipe, so that the effects of filtering, dirt collecting and dirt discharging are achieved; and meanwhile, the sealer is clamped into the annular groove and limited to the check ring, the installation limiting stability of the sealer is improved, therefore, the connecting position of the ventilation pipe and the connecting pipe is sealed, air leakage at the connecting position is avoided, the threaded ring is conveniently connected in a sleeving mode by rotating the threaded sleeve, the connecting pipe is conveniently installed and limited, and the installation limiting stability of the connecting pipe is improved.

Description

Technical Field

[0001] The utility model relates to the field of blowers, and more specifically, to a magnetic levitation centrifugal blower with axial air inlet and single impeller. Background Art

[0002] A magnetic levitation blower is a mechanical device for conveying gas. It adopts core technologies such as magnetic levitation bearings, three-dimensional flow impellers, high-speed permanent magnet synchronous motors, high-efficiency frequency converters for speed regulation, and intelligent monitoring and control. When starting, it first levitates and then rotates, without friction and without the need for lubrication. The three-dimensional flow impeller is directly connected to the rotor, with zero transmission loss. It is a high-tech green energy-saving and environmental protection product. The magnetic levitation blower uses non-contact and non-mechanical friction magnetic levitation bearings and high-speed high-power permanent magnet synchronous motors to directly drive high-efficiency fluid impellers, overcoming the disadvantages of traditional blowers and air suspension blowers. It has the advantages of high efficiency, low noise, few faults, and no need for a lubrication system. Even if a fault occurs in the magnetic levitation bearing, relying on the protection bearing in the system, the high-speed rotating rotor can still be safely stopped, without causing serious damage to the equipment.

[0003] For example, a magnetic levitation high-speed centrifugal aeration blower and its preparation method disclosed in the publication number CN106996382A includes three main components: a single-stage high-speed centrifugal blower, a magnetic levitation bearing, and a high-speed permanent magnet synchronous motor, which are respectively arranged at the upper left end, the right side, and the lower left end of the machine body. Among them, the single-stage high-speed centrifugal blower is provided with an impeller, a volute, a type ring, a turntable, small blades, a small gear, a rotating handle, a bushing, and a damper housing. The center end of the magnetic levitation bearing is provided with a motor spindle, an orientation sensor rotor component, a mirror magnetic bearing rotor component - radial end, an auxiliary bearing component, an orientation sensor stator component, a radial magnetic bearing stator lamination - radial end, a radial magnetic bearing stator shielding cover. The motor spindle is directly connected to the impeller. By adopting advanced technologies such as variable frequency speed regulation, magnetic levitation bearings, and high-speed permanent magnet synchronous motors, the gear speed increasing component and the lubrication system of the traditional single-stage high-speed centrifugal blower are cancelled, overcoming the defects of traditional blowers such as low efficiency, high noise, high energy consumption, large volume and weight, and poor flow regulation performance. It realizes intelligent regulation of air volume, air pressure, rotation speed, etc., with high regulation efficiency to ensure the optimized operation of the system and achieve the purpose of high efficiency and energy saving. The whole machine adopts a skid-mounted structure, with a compact layout and convenient installation, having high economic benefits and broad market prospects.

[0004] As can be seen from the above disclosed solution, currently when the air enters the inside of the blower, the dust in the air will also enter the inside of the blower along with the air, thus not only failing to achieve the filtering effect, but also the dust entering the inside of the blower is likely to pollute the inside of the blower. At the same time, the air delivery pipe of the blower has poor sealing effect when connecting to the external delivery pipeline, and the air is likely to leak from the connection, and the connection method is not good, affecting the connection effect. Summary of the Utility Model

[0005] The purpose of the present utility model is to provide a magnetic levitation centrifugal blower with axial air intake and a single impeller, so as to solve the problems of dust removal of the blower and connection with external pipelines.

[0006] To achieve the above object, the present utility model provides the following technical solution: A magnetic levitation centrifugal blower with axial air intake and a single impeller, including a machine case, a ventilation pipe is fixedly arranged at the upper end of the machine case, a filter screen is fixedly arranged at the lower end inside the ventilation pipe, an inclined plate is fixedly arranged at the lower end inside the ventilation pipe, a delivery pipe is fixedly arranged at the left lower end of the ventilation pipe, a sewage collection box is fixedly arranged at the left lower end of the delivery pipe, a sewage discharge pipe is fixedly arranged at the upper left side of the machine case, a ring groove is arranged at the upper right side of the ventilation pipe, a retaining ring is fixedly arranged at the upper right side of the ventilation pipe, a seal is slidably and hermetically arranged inside the ventilation pipe, the seal is provided with a ring groove, a threaded sleeve is rotatably sleeved outside the right end of the ventilation pipe through threads, a connecting pipe is slidably inserted inside the ventilation pipe, a threaded ring is fixedly arranged on the outer side of the connecting pipe. By arranging the filter screen at the lower end inside the ventilation pipe, the filter screen filters the air, preventing dirt and dust in the air from entering the inside of the machine case. After being filtered by the filter screen, the dust and dirt enter the sewage collection box through the delivery pipe and are finally discharged through the sewage discharge pipe, thereby achieving the effects of filtering, sewage collection and sewage discharge. At the same time, the seal is clamped inside the ring groove and limited by the retaining ring, increasing the installation and limiting stability of the seal, thereby sealing the connection between the ventilation pipe and the connecting pipe to prevent air leakage at the connection. Moreover, by rotating the threaded sleeve, it is convenient to sleeve the threaded ring, facilitating the installation and limiting of the connecting pipe and increasing the installation and limiting stability of the connecting pipe.

[0007] Preferably, the inclined plate is arranged at the upper left side of the filter screen, and the delivery pipe is arranged at the upper left side inside the machine case.

[0008] Preferably, the delivery pipe is arranged at the left side of the filter screen, and the sewage collection box is fixedly arranged at the upper left side inside the machine case.

[0009] Preferably, the seal is slidably clamped inside the ring groove, and the ring groove is slidably clamped by the retaining ring.

[0010] Preferably, the connecting pipe is arranged at the right side of the ventilation pipe, and the threaded sleeve is rotatably sleeved outside the threaded ring through threads.

[0011] Preferably, the right side of the seal is tightly attached and sealed to the left side of the connecting pipe, and legs are respectively fixedly arranged at the corners at the lower end of the machine case.

[0012] Preferably, a through groove is arranged on the right side of the machine case, a baffle is slidably clamped inside the through groove, and a plurality of pull handles are fixedly arranged on the right side of the baffle.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] (1) In the present utility model, a filter screen is arranged at the lower end inside the ventilation pipe. The filter screen filters the air to prevent dirt and dust in the air from entering the inside of the chassis. After being filtered by the filter screen, the dust and dirt enter the sewage collection box through the conveying pipe and are finally discharged through the sewage discharge pipe, thus achieving the effects of filtering, collecting sewage, and discharging sewage.

[0015] (2) In the present utility model, the seal is clamped inside the annular groove and limited by the retaining ring, which increases the installation and limiting stability of the seal, thereby sealing the connection between the ventilation pipe and the connecting pipe to prevent air leakage at the connection. Moreover, by rotating the threaded sleeve, it is convenient to sleeved the threaded ring, which is convenient for installing and limiting the connecting pipe and increases the installation and limiting stability of the connecting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional view of the overall structure of the present utility model;

[0017] Figure 2 is a cross-sectional view of the overall structure of the present utility model;

[0018] Figure 3 is a partial cross-sectional view of the overall structure of the present utility model;

[0019] Figure 4 is an enlarged three-dimensional view of the seal of the present utility model;

[0020] Figure 5 is an enlarged three-dimensional view of the connecting pipe of the present utility model.

[0021] Explanation of the reference numerals in the drawings:

[0022] 1 chassis, 2 ventilation pipe, 3 filter screen, 4 inclined plate, 5 conveying pipe, 6 sewage collection box, 7 sewage discharge pipe, 8 annular groove, 9 retaining ring, 10 seal, 11 annular groove, 12 threaded sleeve, 13 connecting pipe, 14 threaded ring, 15 support leg, 16 through groove, 17 baffle plate, 18 pull handle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment 1

[0025] Please refer to Figures 1-5, A magnetic levitation centrifugal blower with axial air intake and a single impeller shown in the figure, including a chassis 1. A ventilation pipe 2 is fixedly arranged at the upper end of the chassis 1. A filter screen 3 is fixedly arranged at the lower end inside the ventilation pipe 2. An inclined plate 4 is fixedly arranged at the lower end inside the ventilation pipe 2. Through the arrangement of the inclined plate 4, the wind is blocked to prevent the wind from blowing into the inside of the conveying pipe 5. A conveying pipe 5 is fixedly arranged at the left lower end of the ventilation pipe 2. A sewage collection box 6 is fixedly arranged at the left lower end of the conveying pipe 5. A sewage discharge pipe 7 is fixedly arranged at the upper left side of the chassis 1. A ring groove 8 is arranged at the upper right side of the ventilation pipe 2. A retaining ring 9 is fixedly arranged at the upper right side of the ventilation pipe 2. A seal 10 is slidably sealed inside the ventilation pipe 2. The seal 10 is provided with a ring groove 11. A threaded sleeve 12 is rotatably sleeved outside the right end of the ventilation pipe 2 through threads. A connecting pipe 13 is slidably inserted inside the ventilation pipe 2. A threaded ring 14 is fixedly arranged on the outer side of the connecting pipe 13.

[0026] In order to facilitate filtering dirt and connecting to the external conveying pipeline, the inclined plate 4 is arranged at the upper left side of the filter screen 3. The conveying pipe 5 is arranged at the upper left side inside the chassis 1. The conveying pipe 5 is arranged at the left side of the filter screen 3. The sewage collection box 6 is fixedly arranged at the upper left side inside the chassis 1. The seal 10 is slidably clamped inside the ring groove 8. The ring groove 11 is slidably clamped to the retaining ring 9. The connecting pipe 13 is arranged at the right side of the ventilation pipe 2. The threaded sleeve 12 is rotatably sleeved outside the threaded ring 14 through threads. The right side of the seal 10 is tightly sealed against the left side of the connecting pipe 13. Legs 15 are respectively fixedly arranged at the corners of the lower end of the chassis 1. A through groove 16 is arranged on the right side of the chassis 1. A baffle 17 is slidably clamped inside the through groove 16. Through the arrangement of the through groove 16, it is convenient to repair and replace parts inside the chassis 1 through the through groove 16 after removing the baffle 17. A plurality of pull handles 18 are fixedly arranged on the right side of the baffle 17.

[0027] In this implementation scheme, by arranging the filter screen 3 at the lower end inside the ventilation pipe 2, the filter screen 3 filters the wind to prevent dirt and dust in the wind from entering the inside of the chassis 1. After being filtered by the filter screen 3, the dust and dirt enter the sewage collection box 6 through the conveying pipe 5 and are finally discharged through the sewage discharge pipe 7, so as to achieve the effects of filtering, collecting dirt and discharging sewage. At the same time, by clamping the seal 10 inside the ring groove 8 and limiting it to the retaining ring 9, the installation and limiting stability of the seal 10 are increased, so as to seal the connection between the ventilation pipe 2 and the connecting pipe 13 and prevent air leakage at the connection. Moreover, by rotating the threaded sleeve 12, it is convenient to sleeve the threaded ring 14, which is convenient for installing and limiting the connecting pipe 13 and increases the installation and limiting stability of the connecting pipe 13.

[0028] Slide the connecting pipe 13, then rotate the threaded sleeve 12 so that the threaded sleeve 12 is rotationally sleeved on the threaded ring 14 through the thread. Then the connecting pipe 13 can be fixedly connected to the upper right side of the ventilation pipe 2. Then the wind enters the ventilation pipe 2 through the connecting pipe 13, and then moves to the filter screen 3 through the ventilation pipe 2. After being filtered by the filter screen 3, the dirt is transported through the conveying pipe 5 to the inside of the sewage collection tank 6, and then discharged through the opening of the sewage discharge pipe 7, so as to achieve the effect of sewage collection and discharge.

[0029] The above is only a preferred specific embodiment of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and its improved concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A magnetic levitation centrifugal blower with axial air intake and a single impeller, comprising a chassis (1), characterized in that: A ventilation pipe (2) is fixedly arranged at the upper end of the chassis (1). A filter screen (3) is fixedly arranged at the lower end inside the ventilation pipe (2). An inclined plate (4) is fixedly arranged at the lower end inside the ventilation pipe (2). A delivery pipe (5) is fixedly arranged at the left lower end of the ventilation pipe (2). A sewage collection tank (6) is fixedly arranged at the left lower end of the delivery pipe (5). A sewage discharge pipe (7) is fixedly arranged at the upper left side of the chassis (1). A ring groove (8) is arranged at the upper right side of the upper end of the ventilation pipe (2). A retaining ring (9) is fixedly arranged at the upper right side of the upper end of the ventilation pipe (2). A seal (10) is slidably sealed inside the ventilation pipe (2). The seal (10) is provided with a circular groove (11). A threaded sleeve (12) is rotatably sleeved outside the right outer end of the ventilation pipe (2) through threads. A connecting pipe (13) is slidably inserted inside the ventilation pipe (2). A threaded ring (14) is fixedly arranged on the outer side of the connecting pipe (13).

2. The magnetic suspension centrifugal blower with an axial inlet single impeller according to claim 1, wherein: The inclined plate (4) is arranged at the upper left side of the filter screen (3). The delivery pipe (5) is arranged at the upper left side inside the chassis (1).

3. The magnetic suspension centrifugal blower with an axial inlet single impeller according to claim 1, characterized in that: The delivery pipe (5) is arranged at the left side of the filter screen (3). The sewage collection tank (6) is fixedly arranged at the upper left side inside the chassis (1).

4. The magnetic suspension centrifugal blower with an axial inlet single impeller according to claim 1, characterized in that: The seal (10) is slidably clamped inside the ring groove (8). The circular groove (11) is slidably clamped by the retaining ring (9).

5. The magnetic levitation centrifugal blower with an axial inlet single impeller according to claim 1, wherein: The connecting pipe (13) is arranged at the right side of the ventilation pipe (2). The threaded sleeve (12) is rotatably sleeved outside the threaded ring (14) through threads.

6. The magnetic suspension centrifugal blower with an axial air inlet and a single impeller according to claim 1, characterized in that: The right side of the seal (10) is tightly sealed against the left side of the connecting pipe (13). Legs (15) are respectively fixedly arranged at the corners of the lower end of the chassis (1).

7. The magnetic levitation centrifugal blower with an axial inlet single impeller according to claim 1, characterized in that: A through groove (16) is arranged at the right side of the chassis (1). A baffle (17) is slidably clamped inside the through groove (16). A plurality of pull handles (18) are fixedly arranged on the right side of the baffle (17).

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