Large-lift submersible mixed-flow pump for municipal flood discharge and drainage

Abstract

The utility model discloses a large-lift submersible mixed-flow pump for municipal flood discharge and drainage, which relates to the technical field of submersible mixed-flow pumps, and comprises a water inlet horn, a gasket assembly 10 and an auxiliary gasket I. In the large-lift submersible mixed-flow pump, the tail end of a probe penetrates through the side wall of a lower end cover, and the probe and a shaft temperature protection device are combined for use to detect the bearing temperature rise of a bearing assembly 2; detected signals are sent to a monitor of an external electric control cabinet, so that the problem of operation in the pump can be found in time, measures can be taken, the reliability and safety of equipment operation are enhanced, the operation state of the pump can be flexibly adjusted according to actual conditions such as water level change and rainfall, intelligent flood discharge and flood drainage management is achieved, the lift of the pump is large, and the service life of the pump is prolonged. Under the same drainage task, the drainage speed can be increased, the drainage time consumption can be shortened, the drainage efficiency and accuracy can be improved, the waterproof performance of the pump body can be improved through the multiple sealing structures, water can be effectively prevented from entering the motor, and safe and stable operation of the motor is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to submersible mixed flow pump technical field especially municipal flood discharge and drainage use big lift submersible mixed flow pump. BACKGROUND

[0002] Submersible mixed flow pump is a kind of pump that motor and water pump are closely combined and can work in water, and submersible mixed flow pump is mainly to convert the mechanical energy of motor into kinetic energy and pressure energy of liquid. The rotation of motor is transmitted to impeller through shaft, and the rotation of impeller makes liquid accelerate rotation and push outward.

[0003] In prior art, submersible pump is usually used for flood discharge and drainage, and the lift range of single-impeller submersible pump is narrow, and compared with submersible mixed flow pump, the speed of flood discharge and drainage is slow under the same drainage task, which increases the time consumption of drainage and reduces the efficiency of drainage. UTILITY MODEL CONTENT

[0004] The utility model discloses a municipal flood discharge and drainage use big lift submersible mixed flow pump to solve the problem of slow speed of flood discharge and drainage under the same drainage task in prior art, increase the time consumption of drainage and reduce the efficiency of drainage.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: municipal flood discharge and drainage use big lift submersible mixed flow pump, including water inlet horn, gasket assembly ten and auxiliary gasket one, the water inlet horn side installs the guide vane body, the guide vane body inside penetrates and inserts the plug, the guide vane body one side installs the impeller body, the impeller body one side installs the impeller fixed bolt, the impeller body is connected with the guide vane body and rotates, the guide vane body one side is provided with lower end cover, the lower end cover one side installs the connecting end cover, the lower end cover and connecting end cover between install gasket assembly two, auxiliary gasket two and O type sealing ring four, the connecting end cover one side is provided with pump body shell, the connecting end cover and pump body shell between install gasket assembly three, the auxiliary gasket one one side is provided with probe, the probe tail end penetrates the lower end cover side wall, the probe is electrically connected with shaft temperature protection device, the shaft temperature protection device installs the lower end cover one side, the connecting end cover one side installs lower bearing cover through auxiliary gasket one, the lower bearing cover inside penetrates and inserts the connecting shaft, the connecting shaft outer ring surface penetrates and inserts the rotor, the rotor outer ring surface installs the stator, the stator one side is provided with upper bearing cover, the upper bearing cover one side installs the upper end cover, the upper end cover is connected with terminal box cover through gasket assembly ten, the terminal box cover one side is provided with hoisting device, the hoisting device one side installs gasket assembly six.

[0006] Preferably, a gasket assembly one is arranged between the water inlet horn and the guide vane body, an O-shaped sealing ring one and an anti-rotation block are arranged on one side of the guide vane body, a mechanical sealing assembly is arranged on one side of the O-shaped sealing ring one, and the mechanical sealing assembly is inserted through the outside of the connecting shaft.

[0007] Preferably, a bearing assembly two is inserted through the outer ring surface of the connecting shaft, a bearing assembly one is inserted into one end of the connecting shaft, and one side of the bearing assembly one is fixedly connected with the inner wall of the upper end cover.

[0008] Preferably, a lifting ring screw is arranged on one side of the upper end cover, a sheath two is arranged on one side of the lifting ring screw, a wiring assembly is inserted through the inside of the sheath two, a gasket assembly eight is arranged on one side of the sheath two, a gasket assembly nine is arranged on one side of the gasket assembly eight, a wire inlet assembly two is arranged on one side of the gasket assembly nine, and one side of the wire inlet assembly two is connected with the junction box cover.

[0009] Preferably, a wire inlet assembly one is arranged on one side of the junction box cover, a gasket assembly seven is arranged on one side of the wire inlet assembly one, a sheath clamping plate assembly one is arranged on one side of the gasket assembly seven, a sheath one is inserted through the inside of the sheath clamping plate assembly one, and a cable is inserted through the inside of the sheath one.

[0010] Preferably, a gasket assembly ten and an O-shaped sealing ring two are arranged between the junction box cover and the upper end cover, an O-shaped sealing ring three is arranged on one side of the O-shaped sealing ring two, one side of the O-shaped sealing ring three is overlapped with the inner wall of the upper end cover, and a gasket assembly five is arranged between the upper end cover and the pump body shell.

[0011] Preferably, an upper bearing cover is overlapped on one side of the upper end cover, the upper bearing cover is penetrated by the connecting shaft, a gasket assembly four is arranged between the upper bearing cover and the upper end cover, an alarm is arranged on one side of the gasket assembly four, and one end of the alarm is connected with the upper end cover.

[0012] Compared with the prior art, the utility model has the advantages and positive effects that:

[0013] 1、In the utility model, one side of the shaft temperature protection device is connected with the lower end cover, the tail end of the probe penetrates the side wall of the lower end cover, the probe and the shaft temperature protection device are combined for use, the bearing temperature rise of the bearing assembly two is detected, the detected signal is sent into the monitor of the external electric control cabinet, problems in the pump operation can be found in time and measures can be taken, the reliability and safety of equipment operation are enhanced, the operation state of the pump can be flexibly adjusted according to the actual conditions such as water level change and rainfall, intelligent flood discharge and drainage management is realized, the lift of the pump is large, the drainage speed can be improved under the same drainage task, the drainage time is shortened, and then the drainage efficiency and precision are improved.

[0014] 2、The utility model discloses a guide vane body one side is equipped with O type sealing ring no. 1, and O type sealing ring no. 2 is installed between the terminal box cover and upper end cover, and O type sealing ring no. 3 is installed between the upper end cover and pump body shell, utilizes O type sealing ring no. 2, O type sealing ring no. 3 and O type sealing ring no. 4 to seal the multiple junctions of pump, and the mechanical seal assembly is installed between the guide vane body and connecting shaft, reduces the gap between the guide vane body and connecting shaft, can improve the waterproof performance of pump body through multiple sealing structures, can effectively prevent water from entering the inside of motor, and ensures that motor is safe and stable operation. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 The utility model proposes the whole structure schematic diagram of municipal flood discharge and water-logging drainage use big lift submerged mixed flow pump for the utility model;

[0016] Fig. 2 The utility model proposes the hoist device structure schematic diagram of municipal flood discharge and water-logging drainage use big lift submerged mixed flow pump for the utility model;

[0017] Fig. 3 The utility model proposes the probe structure installation schematic drawing of municipal flood discharge and water-logging drainage use big lift submerged mixed flow pump for the utility model.

[0018] Legend: 1, inlet horn, 2, impeller body, 3, guide vane body, 4, lower end cover, 5, connecting end cover, 6, stator, 7, rotor, 8, upper bearing cover, 9, terminal box cover, 10, upper end cover, 11, lower bearing cover, 12, impeller fixing bolt, 13, washer assembly no. 1, 14, O type sealing ring no. 1, 15, anti-rotation block, 16, plug, 17, washer assembly no. 2, 18, washer assembly no. 3, 19, washer assembly no. 4, 20, alarm, 21, washer assembly no. 5, 22, washer assembly no. 6, 23, wire inlet assembly no. 1, 24, washer assembly no. 7, 25, sheath clamping plate assembly no. 1, 26, sheath no. 1, 27, cable, 28, hoist device, 29, wiring assembly, 30, sheath no. 2, 31, washer assembly no. 8, 32, washer assembly no. 9, 33, wire inlet assembly no. 2, 34, washer assembly no. 10, 35, O type sealing ring no. 2, 36, lifting ring screw, 37, O type sealing ring no. 3, 38, bearing assembly no. 1, 39, probe, 40, auxiliary washer no. 1, 41, shaft temperature protection device, 42, auxiliary washer no. 2, 43, O type sealing ring no. 4, 44, bearing assembly no. 2, 45, mechanical seal assembly. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model will be further explained below in combination with the drawings and examples.It needs to be explained that the embodiment of the present application and the features in the embodiment can be combined mutually without conflict.

[0020] Many specific details are set forth in the following description in order to provide a thorough understanding of the present application. However, the present application can be practiced according to other embodiments that can not be described in detail herein, and the present application is not limited to the specific embodiments described in the following description.

[0021] Embodiment one: refer to Figs. 1-3 As shown: municipal flood drainage with large head submerged mixed flow pump, including water inlet horn 1, gasket assembly ten 34 and auxiliary gasket one 40, water inlet horn 1 side is equipped with guide vane body 3, guide vane body 3 inside is equipped with plug 16, guide vane body 3 side is equipped with impeller body 2, impeller body 2 side is equipped with impeller fixing bolt 12, impeller body 2 and guide vane body 3 are rotatably connected, guide vane body 3 side is equipped with lower end cover 4, lower end cover 4 side is equipped with connecting end cover 5, lower end cover 4 and connecting end cover 5 are equipped with gasket assembly two 17, auxiliary gasket two 42 and O type sealing ring four 43, connecting end cover 5 side is equipped with pump body shell, connecting end cover 5 and pump body shell are equipped with gasket assembly three 18, auxiliary gasket one 40 side is equipped with probe 39, probe 39 end penetrates lower end cover 4 side wall, probe 39 is electrically connected with shaft temperature protection device 41, shaft temperature protection device 41 is installed on the side of lower end cover 4, connecting end cover 5 side is equipped with lower bearing cover 11 through auxiliary gasket one 40, lower bearing cover 11 inside is equipped with connecting shaft, connecting shaft outer ring surface is equipped with rotor 7, rotor 7 outer ring surface is equipped with stator 6, stator 6 side is equipped with upper bearing cover 8, upper bearing cover 8 side is equipped with upper end cover 10, upper end cover 10 is connected with terminal box cover 9 through gasket assembly ten 34, terminal box cover 9 side is equipped with lifting device 28, lifting device 28 side is equipped with gasket assembly six 22.

[0022] Plug 16 can block the reserved channel inside guide vane body 3, which does not need liquid or gas flow, effectively prevent internal liquid from abnormal leakage or external impurities from intrusion, protect the integrity and sealing of the internal flow passage of guide vane body 3, improve the stability of impeller body 2 in high speed rotation process through impeller fixing bolt 12, auxiliary gasket two 42 has the function of buffering and adjusting gap, ensure the tightness and stability of pump body connection, make the internal structure of pump body stable, use probe 39 to monitor various key parameters in pump body running process, such as liquid temperature, pressure change, or vibration of impeller body 2, bearing and other components, when abnormal, it will quickly transmit the signal to shaft temperature protection device 41 through electrical connection, when the temperature is too high, shaft temperature protection device 41 triggers alarm signal, reminds the operator to check and repair in time, ensures the safe operation of pump body, stator 6 and rotor 7 cooperate with each other to form the core driving part of motor, when stator 6 is connected with alternating current, it generates rotating magnetic field, drives rotor 7 to rotate at high speed, and then drives impeller body 2 to rotate, realizes the suction and delivery of liquid.

[0023] Example 2: Figs. 1-3 As shown, a gasket assembly 13 is installed between the inlet horn 1 and the guide vane body 3. An O-ring seal 14 and an anti-rotation block 15 are installed on one side of the guide vane body 3. A mechanical seal assembly 45 is provided on one side of the O-ring seal 14. The mechanical seal assembly 45 is inserted through the outside of the connecting shaft. A bearing assembly 44 is inserted through the outer ring surface of the connecting shaft. A bearing assembly 38 is inserted into one end of the connecting shaft. One side of the bearing assembly 38 is fixedly connected to the inner wall of the upper end cover 10. A lifting eye screw 36 is provided on one side of the upper end cover 10. A protective sleeve 30 is provided on one side of the lifting eye screw 36. A wiring assembly 29 is inserted through the protective sleeve 30. A gasket assembly 31 is installed on one side of the protective sleeve 30. A gasket assembly 32 is provided on one side of the gasket assembly 31. An inlet assembly 33 is installed on one side of the gasket assembly 32. One side of the inlet assembly 33 is connected to the junction box cover 9. A cable inlet assembly 23 is installed on one side of the junction box cover 9. A gasket assembly 24 is installed on one side of the cable inlet assembly 23. A sheath clamp assembly 25 is installed on one side of the gasket assembly 24. A sheath 26 is inserted through the sheath clamp assembly 25. A cable 27 is inserted through the sheath 26. A gasket assembly 34 and an O-ring 35 are installed between the junction box cover 9 and the upper cover 10. An O-ring 37 is installed on one side of the O-ring 35. One side of the O-ring 37 overlaps with the inner wall of the upper cover 10. A gasket assembly 21 is installed between the upper cover 10 and the pump body shell. An upper bearing cover 8 overlaps on one side of the upper cover 10. The upper bearing cover 8 is penetrated by a connecting shaft. A gasket assembly 19 is installed between the upper bearing cover 8 and the upper cover 10. An alarm 20 is installed on one side of the gasket assembly 19. One end of the alarm 20 is connected to the upper cover 10.

[0024] The gasket assembly one 13 is installed between the water inlet horn 1 and the guide vane body 3, and prevents water leakage due to the good sealing and buffering performance of the gasket assembly one 13, and can also buffer the impact force caused by water flow impact or pump body vibration to a certain extent, so as to ensure the stability of the connection, the O-shaped sealing ring one 14 can effectively prevent the liquid in the pump from leaking outward, and the anti-rotation block 15 can accurately clamp the adjacent components, so as to ensure that the components can only operate in a predetermined manner, and the normal working order of the pump is ensured. The mechanical sealing assembly 45 realizes the ultimate sealing of the gap between the connecting shaft and the pump body through the high-precision fitting between the rotating ring and the static ring, thereby eliminating the risk of liquid leakage. The bearing assembly two 44 provides stable and smooth rotating support for the connecting shaft, greatly reduces the friction resistance in the rotating process, and enables the connecting shaft to drive the impeller to rotate at high speed and stably, thereby efficiently converting the power transmitted by the motor into kinetic energy of the liquid conveying. The lifting eye screw 36 arranged on one side of the upper end cover 10 can assist in the installation, disassembly and maintenance of the pump body. By cooperating with the lifting device 28, the pump body can be safely and quickly lifted and transported to the designated position. The wiring assembly 29 is a key hub for electric energy transmission, and is responsible for introducing the external cable 27 into the pump body and accurately connecting the cable 27 to the motor and other electrical components. The wire inlet assembly one 23, the gasket assembly seven 24 and the sheath clamp plate assembly one 25 can wrap and fix the cable 27, so as to prevent the cable 27 from being damaged by external force pulling and abrasion during the operation of the pump body.

[0025] The use method and working principle of the device are as follows: first, the entire pump body is connected to the power supply, the motor structure composed of the stator 6, the rotor 7, the connecting shaft and the pump body shell rotates at high speed in the pump body shell, the mechanical energy of the motor is transmitted to the impeller body 2 through the connecting shaft, the impeller body 2 rotates and accelerates and extrudes the liquid in the rotating process, pushes the liquid to flow along the axial direction of the impeller body 2, makes the liquid flow out of the impeller body 2 in an inclined manner, realizes the conveying of the liquid, and the liquid enters the diffusion chamber of the pump body shell after leaving the impeller body 2. In the diffusion chamber, the speed of the liquid is reduced, the kinetic energy is converted into pressure energy, the pressure is further increased, the liquid can overcome the pipeline resistance and the required lift, and is conveyed to the designated position through the outlet pipeline, thereby completing the extraction and conveying of the liquid.

[0026] The above is only a preferred embodiment of the present application, and does not limit the present application in other forms. Any person skilled in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made on the basis of the technical essence of the present application to the above embodiments still belongs to the protection scope of the technical scheme of the present application.

Claims

1. A municipal flood discharge and drainage high-lift mixed-flow pump, comprising a water inlet horn (1), a gasket assembly ten (34) and an auxiliary gasket one (40), characterized in that: The water inlet horn (1) is installed with a guide vane body (3) on one side, a plug (16) is inserted through the inside of the guide vane body (3), a impeller body (2) is installed on one side of the guide vane body (3), a impeller fixing bolt (12) is installed on one side of the impeller body (2), the impeller body (2) is rotatably connected with the guide vane body (3), a lower end cover (4) is arranged on one side of the guide vane body (3), a connecting end cover (5) is installed on one side of the lower end cover (4), a gasket assembly two (17), an auxiliary gasket two (42) and an O-shaped sealing ring four (43) are installed between the lower end cover (4) and the connecting end cover (5), a pump body shell is arranged on one side of the connecting end cover (5), a gasket assembly three (18) is installed between the connecting end cover (5) and the pump body shell, a probe (39) is arranged on one side of the auxiliary gasket one (40), the probe (39) penetrates through the side wall of the lower end cover (4), the probe (39) is electrically connected with a shaft temperature protection device (41), the shaft temperature protection device (41) is installed on one side of the lower end cover (4), a lower bearing cover (11) is installed on one side of the connecting end cover (5) through the auxiliary gasket one (40), a connecting shaft is inserted through the inside of the lower bearing cover (11), a rotor (7) is inserted through and arranged on the outer ring surface of the connecting shaft, a stator (6) is installed on the outer ring surface of the rotor (7), an upper bearing cover (8) is arranged on one side of the stator (6), an upper end cover (10) is installed on one side of the upper bearing cover (8), a junction box cover (9) is connected to the upper end cover (10) through a gasket assembly ten (34), a lifting device (28) is arranged on one side of the junction box cover (9), a gasket assembly six (22) is installed on one side of the lifting device (28).

2. The municipal flood drainage high-lift mixed-flow submersible pump according to claim 1, characterized in that: The gasket assembly one (13) is installed between the water inlet horn (1) and the guide vane body (3), the O-shaped sealing ring one (14) and the anti-rotation block (15) are installed on one side of the guide vane body (3), the mechanical sealing assembly (45) is arranged on one side of the O-shaped sealing ring one (14), and the mechanical sealing assembly (45) is inserted through and arranged outside the connecting shaft.

3. The municipal flood drainage high-lift mixed-flow submersible pump according to claim 1, characterized in that: The bearing assembly two (44) is inserted through and arranged on the outer ring surface of the connecting shaft, the bearing assembly one (38) is inserted into one end of the connecting shaft, and one side of the bearing assembly one (38) is fixedly connected with the inner wall of the upper end cover (10).

4. The municipal flood drainage high-lift mixed-flow submersible pump according to claim 1, characterized in that: The lifting ring screw (36) is arranged on one side of the upper end cover (10), the sheath two (30) is arranged on one side of the lifting ring screw (36), the wiring assembly (29) is inserted through and arranged in the sheath two (30), the gasket assembly eight (31) is installed on one side of the sheath two (30), the gasket assembly nine (32) is arranged on one side of the gasket assembly eight (31), the wire inlet assembly two (33) is installed on one side of the gasket assembly nine (32), and one side of the wire inlet assembly two (33) is connected with the junction box cover (9).

5. The municipal flood drainage high-lift mixed-flow submersible pump according to claim 1, characterized in that: The junction box cover (9) is provided with a wire inlet assembly I (23) on one side, the wire inlet assembly I (23) is provided with a gasket assembly VII (24) on one side, the gasket assembly VII (24) is provided with a sheath clamp plate assembly I (25) on one side, the sheath clamp plate assembly I (25) is provided with a sheath I (26) inside, and the sheath I (26) is provided with a cable (27) inside.

6. The municipal flood drainage high-lift mixed-flow submersible pump according to claim 1, characterized in that: The junction box cover (9) and the upper end cover (10) are provided with a gasket assembly X (34) and an O-shaped sealing ring II (35), the O-shaped sealing ring II (35) is provided with an O-shaped sealing ring III (37) on one side, the O-shaped sealing ring III (37) is connected with the inner wall of the upper end cover (10) on one side, and the upper end cover (10) and the pump body shell are provided with a gasket assembly V (21).

7. The municipal flood drainage high-head mixed-flow submersible pump of claim 1, wherein: The upper end cover (10) is connected with an upper bearing cover (8) on one side, the upper bearing cover (8) is penetrated by a connecting shaft, the upper bearing cover (8) and the upper end cover (10) are provided with a gasket assembly IV (19), the gasket assembly IV (19) is provided with an alarm (20) on one side, and one end of the alarm (20) is connected with the upper end cover (10).

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