CN202468350U

CN202468350U - Sewage submersible electric pump

Info

Publication number: CN202468350U
Application number: CN2012200215813U
Authority: CN
Inventors: 李璐璐; 鲍广德
Original assignee: HAICHENG SUPRASUNY PUMP CO Ltd
Current assignee: HAICHENG SUPRASUNY PUMP CO Ltd
Priority date: 2012-01-18
Filing date: 2012-01-18
Publication date: 2012-10-03
Anticipated expiration: 2022-01-18

Abstract

The utility model discloses a sewage submersible electric pump. The sewage submersible electric pump is characterized by consisting of a motor mechanical structure, a sealing structure, a pump structure and a motor safety protection device; an upper end cover and a top cover are arranged on the upper part of a stationary part and are in fastening sealed connection through a rectangular rubber ring and a screw; a lower end cover is arranged on the lower part of the stationary part and is in fastening sealed connection through an O-shaped ring and the screw; a stationary ring and a movable ring of a mechanical sealing part and an oil seal are respectively arranged on the lower end cover and a pump cover; a downdraft structure that a motor is arranged on the upper part of a pump is employed; and the motor safety protection device consists of a water leakage probe which is arranged in an oil chamber and a floating switch which is arranged in a motor cavity. The sewage submersible electric pump has automatic protection functions of no-load, over-load, water leakage, phase failure, corrosion resistance, temperature control, failure alarm query and the like, and is light in weight, small in size, simple in manufacturing process, difficult to rust, convenient to install and move and long in service life, and manufacturing cost is saved.

Description

A kind of sewage dirt Submerged Motor Pumps

Technical field

The utility model is a kind of places such as industry, agricultural, mine, construction, municipal and environment-friendly that can be used for; Pump the liquid that contains solid particles such as short fibre, paper are cut, silt or soft solids; Like cement, buck, sanitary wastewater, sewage, ight soil; The Submerged Motor Pumps that is used for agricultural drainage and irrigation, River and pond desilting and site construction, particularly a kind of sewage dirt Submerged Motor Pumps.

Background technique

At present, the Submerged Motor Pumps of domestic existing production, because electric machine structure do not have multi-functional protective measure, general only possess overload protection and excess current protective function, therefore exist: motor is prone to water inlet, burns motor product because of the insulating property difference and scraps.

Summary of the invention

The utility model has overcome the defective of above-mentioned existence, and purpose is to be prone to water inlet for solving submersible electric pump motor, because of the problem that the insulating property difference is burnt motor, a kind of sewage dirt Submerged Motor Pumps is provided.

The utility model sewage dirt Submerged Motor Pumps content Description:

The utility model sewage dirt Submerged Motor Pumps is characterized in that: be to be made up of electrical machinery structure, sealing configuration, pump structure and motor safety protection device four parts;

Electromechanics structure: be provided with upper end cap and top cover on stator component top, be fastened and connected through rectangle cushion rubber and screw; The bottom of stator component is provided with lower end cap, is fastened and connected through " 0 " type circle and screw; On top cover, be provided with outgoing cable, be fastened and connected, on the rotor part bottom end bearing, be provided with bearing gland, be provided with wavy spring through the bolton bearing gland and on the bearing of rotor part upper end through cable cover(ing) and hollow plug screw;

Sealing configuration: the sewage dirt Submerged Motor Pumps is respectively equipped with stationary ring and the rotating ring and the oil sealing of mechanical seal parts at lower end cap and pump cover;

Pump structure: adopt motor to be arranged on the lower suction type structure on pump top; Impeller and rotor part are fastenedly connected through key and screw; Volute and pump cover are fastenedly connected through double-screw bolt, nut II; Pump seat is connected through bolton with volute, and the round section joint ring sealing is set, and curved mouth and volute are fastenedly connected through bolt, nut I;

Motor safety protection device: be to constitute, be connected with control box in the outgoing cable termination by the float switch that leaks probe and in motor cavity, be provided with that in the chamber, grease chamber, is provided with.

The utility model sewage dirt Submerged Motor Pumps has overcome the defective of above-mentioned existence; Have multi-functional automatic protection functions such as zero load, overload, lack of water, phase shortage, anti-corrosion, temperature control, malfunction alarm inquiry, its volume is little, in light weight, the life-span is long, performance is safe and reliable.

[0004] Description of drawings

Fig. 1 is a sewage dirt Submerged Motor Pumps structural representation

Among the figure: the 1st, top cover; The 2nd, upper end cap; The 3rd, stator component; The 4th, rotor part; The 5th, lower end cap; The 6th, " 0 " type circle; The 7th, the rectangle cushion rubber; The 8th, bearing; The 9th, wavy spring; The 10th, screw; The 11st, cable; The 12nd, cable cover(ing); The 13rd, hollow bolt; 14 bearing glands; The 15th, bolt; The 16th, mechanical seal; The 17th, oil sealing; The 18th, axle sleeve; The 19th, pump cover; The 20th, " 0 " type circle; The 21st, impeller; The 22nd, screw; The 23rd, volute; The 24th, pump seat; The 25th, the choma cover; 26 is 0 type circles; The 27th, bolt; The 28th, the nut I; The 29th, curved mouth; The 30th, bolt; The 31st, double-screw bolt; The 32nd, the nut II; The 33rd, key; The 34th, probe leaks; The 35th, float switch; The 36th, control box; The 37th, the chamber, grease chamber; The 38th, motor cavity.

[0005] Embodiment

The utility model sewage dirt Submerged Motor Pumps is achieved in that to do below in conjunction with accompanying drawing and specifies.See Fig. 1, the sewage dirt Submerged Motor Pumps is to be made up of electrical machinery structure, sealing configuration, pump structure and motor safety protection device four parts.

Electromechanics structure: be provided with upper end cap 2 and top cover 1 on stator component 3 tops, be fastened and connected through rectangle cushion rubber 7 and screw 10; The bottom of stator component 3 is provided with lower end cap 5, is fastened and connected through " 0 " type circle 6 and screw 10; On top cover 1, be provided with outgoing cable 11, be fastened and connected through cable cover(ing) 12 and hollow plug screw 13.It is reasonable, safe and reliable to be fastenedly connected the motor static seal through three kinds of sealings, reaches the motor purpose of not intaking.On rotor part 4 bottom end bearings 8, be provided with bearing gland 14, reach through bolt 15 fastener shaft pressure caps 14 and on rotor part 4 upper end bearings 8, be provided with wavy spring 9, solved rotor part 4 axial float problems.

Sealing configuration: the sewage dirt Submerged Motor Pumps is respectively equipped with the stationary ring of mechanical seal 16 parts and the rotating ring and the oil sealing 17 of mechanical seal 16 parts at lower end cap 5 and pump cover 19; Through rotating ring that is contained in rotor part mechanical seal 16 parts and the oil sealing 17 that is contained in pump cover 19 places, reach the long purpose of the safe and reliable physical life of motive sealing.

Pump structure: adopt motor to be arranged on the lower suction type structure on the top of pump; Impeller 21 is fastenedly connected through key 33 and screw 22 with rotor part 4; Volute 23 is fastenedly connected through double-screw bolt 31, nut II 32 with pump cover 19, and pump seat 24 is fastenedly connected through bolt 30 with volute 23, and round section joint ring 26 sealings are set; Choma cover 25 cooperates replaceable with impeller 21; Electric pump is seen off sewage by curved mouth 29, and curved mouth 29 is fastenedly connected through bolt 27, nut I 28 with volute 23, constitutes sewage dirt Submerged Motor Pumps pump structure.

Motor safety protection device: be by the float switch that leaks probe 34 and motor cavity 38 in, be provided with 30 formations that in chamber, grease chamber 37, are provided with.In chamber, grease chamber 37, be provided with the probe 34 that leaks, the water inlet of control grease chamber is reported to the police and is shut down; In motor cavity 38, be provided with float switch 30, the water inlet of control motor cavity is reported to the police and is shut down; Be connected with control box 36 in outgoing cable 11 terminations, be provided with multifunctional protection device.

Control box 36 design guarantees under safe and reliable condition, to move to automatic supervision and protection comprehensively in the electric pump running, the abnormal failure shutdown of reporting to the police immediately occurs, notifies the maintenance man maintenance and inspection.Control box 36 design protection functions have: the motor overload protection; The empty load of motor protection; The electric pump excessive low water level protection; The power supply open-phase protection; Has antirust function; The water inlet of detection grease chamber, the motor automatic shutdown function; The detection winding temperature is high, the motor automatic shutdown function; The water inlet of detection motor, the motor automatic shutdown function; Detect the electric pump lack of water, the motor automatic shutdown function; Fault light control alarm function; The fault message query function; Possesses hand reset, AutoPlay function.

Claims

1. a sewage dirt Submerged Motor Pumps is characterized in that: be to be made up of electrical machinery structure, sealing configuration, pump structure and motor safety protection device four parts;

Electromechanics structure: be provided with upper end cap (2) and top cover (1) on stator component (3) top, be fastened and connected through rectangle cushion rubber (7) and screw (10); The bottom of stator component (3) is provided with lower end cap (5), is fastened and connected through " 0 " type circle (6) and screw (10); On top cover (1), be provided with outgoing cable (11); Be fastened and connected through cable cover(ing) (12) and hollow plug screw (13); On rotor part (4) bottom end bearing (8), be provided with bearing gland (14), be provided with wavy spring (9) through bolt (15) fastener shaft pressure cap (14) and on rotor part (4) upper end bearing (8);

Sealing configuration: the sewage dirt Submerged Motor Pumps is respectively equipped with stationary ring and the rotating ring and the oil sealing (17) of mechanical seal (16) parts at lower end cap (5) and pump cover (19);

Pump structure: adopt motor to be arranged on the lower suction type structure on pump top; Impeller (21) is fastenedly connected through key (33) and screw (22) with rotor part (4); Volute (23) is fastenedly connected through double-screw bolt (31), nut II (32) with pump cover (19); Pump seat (24) is fastenedly connected through bolt (30) with volute (23), and round section joint ring (26) sealing is set, and curved mouth (29) is fastenedly connected through bolt (27), nut I (28) with volute (23);

Motor safety protection device: be to constitute, be connected with control box (36) in outgoing cable (11) termination by the float switch (30) that leaks probe (34) and in motor cavity (38), be provided with that in chamber, grease chamber (37), is provided with.