CN202402294U

CN202402294U - Deep-well pump

Info

Publication number: CN202402294U
Application number: CN2011205470363U
Authority: CN
Inventors: 金可友
Original assignee: Individual
Current assignee: Jin Keyou
Priority date: 2011-12-22
Filing date: 2011-12-22
Publication date: 2012-08-29
Anticipated expiration: 2021-12-22

Abstract

The utility model provides a deep-well pump, which comprises a motor controller, wherein a motor is a direct current brushless motor; the output shaft of the direct current brushless motor is connected with a main shaft of the deep-well pump through a coupling; and the motor controller is connected with the direct current brushless motor. Compared with the prior art, the deep-well pump can run at changeable speed and high speed by adopting the direct current brushless motor, so that the flow and the travel of the deep-well pump can be controlled and greatly increased; therefore, the number of vane wheel sections of the deep-well pump is greatly reduced, the height and the weight of the deep-well pump are reduced, the function of the deep-well pump is optimized, and the deep-well pump is very convenient to use and maintain; furthermore, the direct current brushless motor can be programmed to run through the motor controller and variously protected; and intelligent operation is realized.

Description

Deep-well pump

Technical field

The utility model relates to water intaking drainage machinery technical field, particularly, relates to a kind of deep-well pump.

Background technique

Deep-well pump is the machinery that sinks to water lift in the well bore.It is to immerse a kind of pump that aspirates in the underground water well with transporting water, is widely used in the deep extracting water of farmland discharging-irrigating, industrial and mining enterprise, rural potable water and level of ground water etc.Level of ground water is more and more darker in recent years, and general water pump is difficult to play a role, and the deep-well pump demand is more and more.The maximum characteristics of deep-well pump are that motor and pump are processed vertical one, require diameter little, conjuncted straight-bar type.

Because common deep-well pump generally adopts AC induction motor, the rotating speed of asynchronous motor receives the restriction of ac frequency, 2850 rev/mins of the rotating speeds of asynchronous motor when ac frequency is 50HZ, 3420 rev/mins of the rotating speeds during 60HZ.Make high necessary multi-stage impeller, 25 grades more than of the impeller up of the deep-well pump that has used of pump head.Improve the rotating speed of asynchronous motor, can significantly improve deep-well lift of pump, flow, reduce the impeller joint number of deep-well pump, dwindle the volume of deep-well pump.But the rotating speed that improves asynchronous motor generally is use frequency variator, and frequency variator is controlled AC induction motor again, and not high, the cost of efficient, control accuracy can significantly improve like this, therefore is difficult to promote, and needs do improvement further.

The model utility content

The problem that the utility model will solve is: the problem that is directed against above-mentioned existence provides a kind of and can significantly improve lift, flow, reduces the impeller joint number, dwindles the deep-well pump volume, alleviates well pump weight, the deep-well pump of raising the efficiency.

The technological scheme that the utility model adopted is: a kind of deep-well pump is provided; Comprise motor, coupling, electric machine controller, impeller, the pump housing; It is characterized in that said deep-well pump motor is a dc brushless motor; The output shaft of said dc brushless motor is connected through said coupling with the main shaft of deep-well pump, and said electric machine controller connects the said dc brushless motor of control, makes deep-well pump carry out work by the controlled speed of programming; Thereby the flow of deep-well pump and lift etc. are carried out intelligent control, and reduced volume reduces weight

Particularly, transfer controlled alternating impulse electric current to through said electric machine controller behind the deep-well pump input commercial power rectification and import said dc brushless motor, electric machine controller is taken a sample by power rectifier, mcu programming, the panel that power output etc. are formed and operated usefulness.

Compared with prior art, the deep-well pumping that the utility model provides is used dc brushless motor, can control rate; It is run up; Thereby make the flow of deep-well pump and lift controlled, can significantly improve lift and flow, can significantly reduce the impeller joint number of deep-well pump like this than asynchronous motor deep-well pump; Dwindle the height and the weight of deep-well pump, optimize the function of deep-well pump; And adopt dc brushless motor can also pass through the electric machine controller programing operation, and intellectualized operation is carried out in deep-well pump work, also dc brushless motor is provided various protections such as overvoltage, overcurrent, overheated, electric leakage, realize semi-automatic automatically the operation; The efficient of dc brushless motor at a high speed is all more than 83%, and energy-conservation ten minutes is remarkable, and is more energy-conservation up to 20% than general small-bore small-sized single-phase Pump for well.

Description of drawings

Fig. 1 shows the general assembly structural representation of the deep-well pump that provides among the utility model embodiment.

Fig. 2 shows the system principle diagram of the deep-well pump that provides among the utility model embodiment.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing:

Embodiment: like Fig. 1 and shown in Figure 2, the deep-well pump in the present embodiment comprises parts such as power supply, dc brushless motor 2, coupling 3, electric machine controller 4, water intake 5, impeller 6, the pump housing and water outlet 7.

Power supply comprises rectification circuit, and power supply is rectified into DC electrical source after importing civil power through power connection 1.Electric machine controller 4 comprises inverter circuit and single-chip microcomputer; Electric machine controller 4 connects control dc brushless motor 2; Behind the deep-well pump input commercial power rectification; Transfer controlled alternating impulse electric current input dc brushless motor 2 to through electric machine controller 4, the rotor magnet of dc brushless motor 2 produces the rotation outputting power, makes deep-well pump work.

The output shaft of dc brushless motor 2 is connected through coupling 3 with the main shaft of deep-well pump, 6 rotations of coupling 3 impeller, and centrifugal water outlet, thus make dc brushless motor 2 carry out work as the power source outputting power.Impeller 6 rotations, water flows out at a high speed from water outlet 7 after the more piece impeller quickens from water intake, and the function of deep-well pump just is much improved like this.

Fig. 2 shows the system principle diagram of deep-well pump, and in the present embodiment, electric machine controller 4 can carry out power rectifier, sampling, and mcu programming, compositions such as power output are at the enterprising line operate of panel.Only need on panel, operate, DC electrical source through circuit such as voltage stabilizing, inversions after, just can realize the control of deep-well pump through single-chip microcomputer.Write proper procedure at electric machine controller 4, realize intellectualized operation, make deep-well pump carry out work by controlled speed and other requirements of programming, its concrete principle is carried out with reference to figure 2, does not repeat them here.

Dc brushless motor 2 can run up, and rotating speed doubles, and the deep-well pump lift can improve 4 times; Flow can double; The impeller joint number of deep-well pump just can significantly reduce like this, dwindles the height and the weight of deep-well pump, optimizes the function of deep-well pump; And, can various protections be provided to dc brushless motor 2 through programing operation on electric machine controller 4.The efficient of dc brushless motor 2 at a high speed can reach more than 80%, and energy-conservation ten minutes is remarkable, and is more energy-conservation up to 20% than general small-bore small-sized single-phase Pump for well.

Claims

1. deep-well pump; Comprise motor, coupling, electric machine controller, impeller and the pump housing; It is characterized in that: said deep-well pump motor is a dc brushless motor, and the output shaft of said dc brushless motor is connected through said coupling with the main shaft of deep-well pump, and said electric machine controller connects the said dc brushless motor of control; Deep-well pump can be controlled the flow and the lift of deep-well pump by the controlled speed operation of programming.

2. deep-well pump according to claim 1; It is characterized in that: transfer controlled alternating impulse electric current to through said electric machine controller behind the deep-well pump input commercial power rectification and import said dc brushless motor, electric machine controller comprises the panel of power rectifier, sampling, mcu programming, power output and operation usefulness.