CN202707447U

CN202707447U - Variable frequency pump

Info

Publication number: CN202707447U
Application number: CN 201220290404
Authority: CN
Inventors: 郭世平; 宋炳元; 胡宝东; 宗世彪
Original assignee: Shanghai Fosun Pharmaceutical Group Co Ltd; Xuzhou Wanbang Jinqiao Pharmaceutical Co Ltd
Current assignee: Jiangsu Wanbang Biopharmaceutical Group Co ltd
Priority date: 2012-06-20
Filing date: 2012-06-20
Publication date: 2013-01-30
Anticipated expiration: 2022-06-20

Abstract

The utility model relates to a control motor, in particular to a remote control motor and further relates to a variable frequency pump. The variable frequency pump points at problems of impossible maneuvering control and inflexible adjustment of feed quantity. The variable frequency pump comprises a frequency converter, a pump body, a motor, a power source and a revolution meter. The frequency converter is in electric connection with the motor which is in electric connection with the pump body. The frequency converter is in electric connection with the power source. A main body of the revolution meter is fixed. A probe of the revolution meter is arranged on a stator of the motor. The frequency converter, the motor and the pump body are all simultaneously connected into a distributing circuit and a control circuit. An improved control electrode reduces energy consumption, reduces raw materials in production, manpower and other investment, lowers a failure rate and improves production efficiency to some degree.

Description

Variable frequency pump

Technical field

The utility model relates to a kind of control motor, particularly relates to a kind of telecontrol motor, more specifically relates to a kind of variable frequency pump.

Background technique

As a kind of automatic production instrument, the application of pump in industry is very extensive, particularly uses very extensive as charging with power tool.

At present, common used non-frequency technology in industry, that is to say with motor and pump install appropriate after, machine is always with certain rotating speed and Power operation, the feeding and discharging amount in the unit time is constant.

But as the pharmaceutical factory manufacturing mechanism, invariable feeding and discharging amount has had a strong impact on cost of production.

We find because batch difference of raw material, so contained actual demand raw material dose is different in the raw material, for example a certain batch content is higher, has reached 10%; And the content of another batch is lower, only is 8%; Because the feeding and discharging amount of pump is constant, so always discharging is 10 tons in the supposition unit time, so for content higher batch, in fact the raw material dose that adds in producing has reached 1 ton, and for another content lower batch, under the same speed, the actual raw material dose that adds in producing only is 0.8 ton.So, for once can only be concerning the operation that 0.9 ton pure raw material dose is processed, chemical feeding quantity reaches 1 ton hour, wherein 0.1 ton raw material just has been wasted, and 0.8 ton of inlet amount does not meet standard with regard to having caused the goods of producing, and then the generation reject, increased cost of production.

We also once thought directly to improve this situation by connecting variable frequency pump, but the frequency that variable frequency pump can only display power supply, the rotating speed that can not directly show motor, so operator can not adjust feed rate timely, the problems referred to above still can not get solution fundamentally.

Summary of the invention

The problem that the utility model can't motor-drivenly be controlled, adjusted flexibly for present inlet amount, a kind of variable frequency pump is provided, formed by frequency variator, the pump housing, motor and power supply, be electrically connected between described frequency variator and the motor, be electrically connected between described motor and the pump housing, described frequency variator and power supply are electrically connected; Also include tachometer, the main body of described tachometer is fixed, and the tachometer probe is installed on the rotor, and described frequency variator, motor, the pump housing all access distribution wire and control wiring simultaneously.

Innovative point of the present utility model is by changing the Placement of frequency variator, the pump housing and motor, thereby so that tachometer can add in the whole work system, and by the arrangement of popping one's head on the tachometer, realized the monitoring to pump housing feeding and discharging speed, thereby so that operator can make things convenient for, obtain intuitively by tachometer the feeding and discharging speed data, in time adjust feeding and discharging speed according to the actual raw material dose that contains in the raw material, realize the motor-driven control of feeding and discharging, flexibly adjustment.

Frequency variator in the middle of the utility model adopts commercially available VVVF frequency conversion or the frequency variator of Vector Control Frequency Conversion.Its working principle is first power frequency AC to be converted to DC electrical source by rectifier, and then DC electrical source convert to frequency, voltage all controllable ac power supply to supply with motor.

In sum, adopt technological scheme disclosed in the utility model after, reduced energy consumption, reduced the costs such as production Raw, manpower and dropped into, reduced disqualification rate, improved to a certain extent manufacturing efficiency.

Description of drawings

Fig. 1 is the variable frequency pump connection diagram;

Wherein:

1-frequency variator, the 2-pump housing, 3-motor, 4-power supply, 5-tachometer.

Embodiment

Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand following embodiment and only be used for explanation the utility model and be not used in restriction scope of the present utility model.

Embodiment 1

As shown in Figure 1, variable frequency pump, described variable frequency pump is comprised of frequency variator 1, the pump housing 2, motor 3 and power supply 4, is electrically connected between described frequency variator 1 and the motor 3, is electrically connected between described motor 3 and the pump housing 2, and described frequency variator 1 is electrically connected with power supply 4; Also include tachometer 5, the main body of described tachometer 5 is fixed, and the tachometer probe is installed on the rotor, and described frequency variator 1, motor 3, the pump housing 2 all access distribution wire and control wiring simultaneously.

That is to say, respectively according to need of production, the frequency variator 1 of buying the pump housing 2, necessary electromotor 3 and meeting the FREQUENCY CONTROL of need of production, tachometer 5.

According to the circuit design mode of routine, respectively the pump housing 2, necessary electromotor 3, frequency variator 1 are connected in the control wiring.

Then select the safety zone, designing power supply 4 openings, and power supply 4, the pump housing 2, necessary electromotor 3, frequency variator 1 be connected into distribution wire.

Preferably frequency variator, distribution wire, control wiring are placed on separately the zone of a safety for safety.

Then, the probe that will buy from market the tachometer 5 that comes is installed on the rotor of motor 3, and with the display device partial devices of tachometer 5 on the metope that is easy to monitor.

Power-on, and the rotating speed of motor 3 carried out Real Time Monitoring.If the content of actual demand raw material dose is lower in the raw material, just increase the rotating speed of motor 3, the load of the pump housing 2 is increased; If the content of actual demand raw material dose is higher in the raw material, just reduce the rotating speed of motor 3, so that the minimizing of the load of the pump housing 2, thereby realize the throughput rate maximization.

The disclosed technological means of the present invention program is not limited only to disclosed technological means in above-described embodiment, also comprises the technological scheme that is comprised of above technical characteristics combination in any.

The above is embodiment of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also are considered as protection domain of the present utility model.

Claims

1. variable frequency pump, it is characterized in that: described variable frequency pump is comprised of frequency variator, the pump housing, motor and power supply, is electrically connected between described frequency variator and the motor, is electrically connected between described motor and the pump housing, and described frequency variator and power supply are electrically connected; Also include tachometer, the main body of described tachometer is fixed, and the tachometer probe is installed on the rotor, and described frequency variator, motor, the pump housing all access distribution wire and control wiring simultaneously.