CN-121993415-A - Brushless centrifugal filter pump

Abstract

The invention relates to a brushless centrifugal filter pump which is characterized by comprising a bottom bracket, a filter system, a centrifugal pump main body assembly and a water outlet joint structure, wherein the centrifugal pump main body assembly and the filter system are arranged up and down and are mutually communicated, the centrifugal pump main body assembly is formed by sequentially connecting 3 or more than 3 impeller centrifugal pumps, the water outlet joint structure is connected with the uppermost impeller centrifugal pump, and the impeller centrifugal pump is formed by a cylindrical outer layer pump body, a centrifugal impeller structure with a rubidium magnet structure, a Hall sensor, a rotating shaft and a cylindrical electrode assembly which is arranged inside the cylindrical outer layer pump body. The rubidium magnet structure and the cylindrical electrode assembly for driving are respectively arranged in the centrifugal impeller structure and the cylindrical outer-layer pump body to form a brushless pump structure, and water flows through the pump body to serve as natural coolant, so that the pump can normally operate under the condition of low liquid level, and the risk of overheat burnout of a motor is avoided.

Inventors

• SHI LEI
• CHEN MIN
• Jian Yongtong
• WANG TIANZE
• REN XIANGHAO
• TAO JING
• GU XIANG
• TONG JIANGUO
• WANG QIN
• DING JIANXIN
• LI WENJIE
• YANG WEI
• Tan Zhongshan
• HAN LU
• Dong kaixuan

Assignees

• 句容市深水水务有限公司
• 句容市深水黄梅污水处理有限公司
• 深圳市环水投资集团有限公司

Dates

Publication Date

20260508

Application Date

20251231

Claims (10)

1. 1. A brushless centrifugal filter pump is characterized by comprising a bottom bracket (1), a filter system, a multistage centrifugal pump body and a water outlet joint structure, wherein the multistage centrifugal pump body is fixed on the bottom bracket through the filter system, the multistage centrifugal pump body and the filter system are arranged up and down and are mutually communicated, the multistage centrifugal pump body is composed of an outer pump body, a centrifugal impeller structure with a rubidium magnet structure (5-8), a Hall sensor, a rotating shaft and a cylindrical electrode assembly (5-11), the outer pump body is composed of three or more cylindrical outer shells which are sequentially welded and connected into a whole from top to bottom, a cylindrical electrode assembly is hermetically arranged in each cylindrical outer shell, a centrifugal impeller structure is sleeved on the rotating shaft in each cylindrical outer shell, the magnet structure on each centrifugal impeller structure faces to one cylindrical electrode assembly respectively, the Hall sensor is electrically connected with the cylindrical electrode assembly, and a lifting channel is reserved between the outer wall of the centrifugal impeller structure and the inner wall of the cylindrical outer shell.
2. 2. The brushless centrifugal filter pump according to claim 1, wherein the cylindrical outer casing is formed by welding an upper cylindrical casing (5-1) and a lower cylindrical casing (5-2) together, a placement groove for accommodating the cylindrical electrode assembly is formed at the lower end of the upper cylindrical casing and the upper end of the lower cylindrical casing, a mounting box (4) integrally connected with the upper cylindrical casing is welded on the outer wall of the uppermost upper cylindrical casing, the upper end of the uppermost upper cylindrical casing is connected with a water outlet joint structure, the lower end of the lowermost lower cylindrical casing is connected to the top of the filter system, the Hall sensor and the controller assembly are arranged in the mounting box, a wire channel (5-5) communicated with the mounting box is further formed in the side walls of the upper cylindrical casing and the lower cylindrical casing, a wire connected with the cylindrical electrode assembly extends into the mounting box along the wire channel and is electrically connected with the controller assembly and the Hall sensor, and a first hanging ring structure (5-6) for hanging is further arranged on the outer wall of the upper cylindrical casing.
3. 3. The brushless centrifugal filter pump according to claim 2, wherein each cylindrical housing is provided with a rotary shaft, upper and lower adjacent rotary shafts are connected to each other by a coupling, a rotary shaft connecting member is provided at a lower end of the water outlet joint structure, and the rotary shaft connecting member extends into the uppermost cylindrical housing and is rotatably connected to the rotary shaft.
4. 4. The brushless centrifugal filter pump according to claim 1, wherein the centrifugal impeller structure comprises an impeller main body structure and a sealing cover body (5-10), the impeller main body structure is composed of a disc-shaped fixing part (5-12-1), an impeller part (5-12-2) arranged on the front end face of the disc-shaped fixing part and a cylindrical mounting structure arranged on the rear end face of the disc-shaped fixing part, the sealing cover body is sleeved on the outer side of the cylindrical mounting structure and is welded and connected with the disc-shaped fixing part into a whole, and the rubidium magnet structure is uniformly arranged on the outer wall of the cylindrical mounting structure and is sealed through the sealing cover body.
5. 5. The brushless centrifugal filter pump according to claim 4, wherein a rubber seal ring (5-9) is further provided between the front end of the seal housing and the rear end of the disc-shaped fixing portion.
6. 6. The brushless centrifugal filter pump of claim 1, wherein the filter system comprises a hollow cube connecting seat, a cylindrical filter screen structure (18) and two filter screen arc limiting seats (17) matched with the cylindrical filter screen structure, the two filter screen arc limiting seats are oppositely arranged, the upper end and the lower end of the two filter screen arc limiting seats are respectively fixed at the bottom of the cube connecting seat and the top of the bottom bracket, the cylindrical filter screen structure is limited between the two filter screen arc limiting seats, and a water inlet channel is reserved between the two ends of the two filter screen arc limiting seats.
7. 7. The brushless centrifugal filter pump of claim 6, wherein the cube connecting seat is formed by connecting an upper seat body (13) and a lower cover body (14) in an up-down detachable manner, the cylindrical filter screen structure is formed by a gear outer ring and a cylindrical filter screen, the upper end of the cylindrical filter screen stretches into the lower cover body and is fixedly sleeved with the gear outer ring, the lower end of the cylindrical filter screen is rotatably connected to the top of the bottom bracket, a hollow mounting seat (12) is arranged on the outer wall of the lower cover body, a driving gear meshed with the gear outer ring is arranged in the hollow mounting seat, a notch for stretching in the driving gear is formed in the outer wall of the lower cover body, the notch is sealed through the hollow mounting seat, a driving servo motor (10) capable of being controlled remotely is further arranged on the hollow mounting seat, and an output shaft of the driving servo motor stretches into the hollow mounting seat, and the driving gear is fixedly sleeved on the output shaft of the driving servo motor.
8. 8. The brushless centrifugal filter pump according to claim 7, wherein the upper housing is provided with an auxiliary water inlet (15) on each of the front, rear, left, right, and left surfaces, the auxiliary water inlet being sealed by a cover (16) detachably attached to the end portion, and a filter plate structure being detachably provided inside the auxiliary water inlet.
9. 9. The brushless centrifugal filter pump according to claim 1, wherein the water outlet joint structure comprises a flange joint (2) and a rotary joint (6), the flange joint is connected with a first flange connection seat of the uppermost impeller centrifugal pump, the rotary joint is sleeved outside the upper end of the flange joint and is rotationally connected with the flange connection seat, and a water outlet flange joint (7) is arranged on one side of the rotary joint.
10. 10. The brushless centrifugal filter pump according to claim 9, characterized in that the rotary joint and the top of the filter system are provided with a second (3) and a third (19) lifting ring structure, respectively.

Description

Brushless centrifugal filter pump Technical Field The invention relates to the technical field of centrifugal pumps, in particular to a brushless centrifugal filter pump. Background The ordinary centrifugal pump that most used in the existing market has the pump body too big, pivot and motor all are located inside the pump body, both need guarantee equipment leakproofness, need guarantee equipment later maintenance convenient to detach again, the pump body is too big, surpass the pump body of 2m, lead to when low water level, upper portion motor part exposes in the air, very easily overheated damage, long-time operation, impeller and pivot can lead to wearing and tearing owing to long-time operation in the pump, dismantle the whole pump body of needs and dismantle, the maintenance is difficult, once the maintenance time is very long, and unable erection filtration equipment, filtration equipment can only adorn in pump body water inlet position, it lifts by crane the clearance needs whole pump body to lift by crane, it is difficult to maintain. Disclosure of Invention The invention designs a brushless centrifugal filter pump for solving the problems, wherein a rubidium magnet structure and a cylindrical electrode assembly for driving are respectively arranged inside a centrifugal impeller structure and a cylindrical outer shell to form a brushless pump structure, water flows through a pump body to serve as natural coolant, and electric wires sealed in the side wall of the cylindrical outer shell are cooled, so that the brushless centrifugal filter pump can normally operate under the condition of lower liquid level, and the risk of overheat burnout of a motor is avoided. In order to solve the technical problems, the invention provides a bottom bracket, a filtering system, a multistage centrifugal pump body and a water outlet joint structure, wherein the multistage centrifugal pump body is fixed on the bottom bracket through the filtering system, the multistage centrifugal pump body and the filtering system are arranged up and down and are mutually communicated, the multistage centrifugal pump body consists of an outer pump body, a centrifugal impeller structure with a rubidium magnet structure, a Hall sensor, a rotating shaft and a cylindrical electrode assembly, the outer pump body consists of three or more cylindrical outer shells which are sequentially welded and connected into a whole from top to bottom, each cylindrical outer shell is internally provided with a cylindrical electrode assembly in a sealing way, a centrifugal impeller structure is sleeved on a rotating shaft in each cylindrical outer shell, the rubidium magnet structure on each centrifugal impeller structure faces to one cylindrical electrode assembly respectively, the Hall sensor is electrically connected with the cylindrical electrode assembly, and a lifting channel is reserved between the outer wall of the centrifugal impeller structure and the inner wall of the cylindrical outer shell. Further, the barrel casing constitute by last barrel casing and lower barrel casing welded connection, the standing groove that is used for settling barrel electrode assembly is all offered to the lower extreme of going up barrel casing and the upper end of lower barrel casing, the welding has the installation box body rather than linking into an organic whole on the outer wall of the last barrel casing of top, the upper end and the play water joint structure of the last barrel casing link to each other, the lower extreme of the lower barrel casing of the lowest is connected at filtration system's top, hall sensor and controller subassembly set up in the installation box body, still offered the wire passageway that is linked together with the installation box body in the lateral wall of last barrel casing and lower barrel casing, the wire that is connected with barrel electrode assembly stretches into in the installation box body along the wire passageway and is connected with controller subassembly and hall sensor electricity, still be provided with the first rings structure that is used for lifting by crane on the outer wall of going up the barrel casing. Further, each cylindrical outer shell is internally provided with a rotating shaft, the upper rotating shaft and the lower rotating shaft are connected with each other through a coupler, the lower end of the water outlet joint structure is provided with a rotating shaft connecting piece, and the rotating shaft connecting piece stretches into the uppermost cylindrical outer shell and is rotationally connected with the rotating shaft. Further, the centrifugal impeller structure comprises an impeller main body structure and a sealing outer cover body, wherein the impeller main body structure is composed of a disc-shaped fixing part, an impeller part arranged on the front end face of the disc-shaped fixing part and a cylindrical mounting structure arranged on the rear end face of the disc-shaped fixing par