CN2343376Y

CN2343376Y - Permanent-magnet piston variable frequency reciprocating pump

Info

Publication number: CN2343376Y
Application number: CN 98227667
Authority: CN
Inventors: 蒋明兴
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-08-20
Filing date: 1998-08-20
Publication date: 1999-10-13
Anticipated expiration: 2008-08-20

Abstract

The utility model relates to a permanent-magnet piston frequency-changing reciprocating pump. The utility model comprises a housing with wire inlet holes, a water inlet pipe and a water discharge pipe which are formed with the housing through casting and are connected with the housing into integration, and a frequency-changing circuit board. A frequency-changing power supply is adopted to make a stator winding generate alternating magnetic fields to push and pull a rare earth permanent magnet piston in a reciprocating model. By adopting a double-inlet and double-outlet electromechanical integral design with the full stroke making useful work, the utility model has the advantages of high efficiency, energy saving, small size, light weight, low noise, long service life, compact structure, convenient use, safe running, etc. and magnetic water can be provided.

Description

Permanent magnetic piston frequency conversion reciprocating pump

The utility model relates to a kind of permanent magnetic piston frequency conversion reciprocating pump, especially is applicable to the permanent magnetic piston frequency conversion reciprocating pump of chemical industry, pharmacy, oil, plating, food, film, photograph developing, refrigerator and air conditioner refrigeration compression, FLUID TRANSPORTATION.

Known centrifugal pump, reciprocating pump and magnetic force driving pump all need supporting alternating current asynchronous induction motor, and will rotatablely move with mechanical axis converts to-and-fro motion to, has therefore caused mechanical energy consumption, and efficient is relatively low; The dynamic seal rapid wear of above-mentioned all kinds of pumps and cause working medium race, emit, leak drawback; The short circuit of its motor, phase shortage, overvoltage, factor such as under-voltage also cause the hidden danger of operation troubles.

The purpose of this utility model be overcome the problems referred to above of prior art and provide the each stroke of a kind of reciprocating motion of the pistons all do useful work, energy-efficient, volume is little, in light weight, noise is low, the life-span is long, compact structure, use permanent magnetic piston frequency conversion reciprocating pump easy to maintenance and safe and reliable to operation.

The purpose of this utility model reaches by following technical measures.

The utility model includes intake pipe and waste pipe and the frequency changer circuit plate that the shell that has the power line wire-feeding hold and shell casting fuse.And arranged on left and right sides respectively is provided with iron core (6 and 6 ') in the enclosure, respectively is provided with the stator coil of mutual series connection on described two iron cores (6 and 6 ').

In intake pipe, be provided with the shunting wall, respectively be provided with an inlet valve in described shunting wall both sides.

Between two iron cores (6 and 6 '), be provided with the cylinder body that two ends respectively have cylinder cap and pod apertures, be provided with the permanent magnetic piston assembly in this cylinder body, described permanent magnetism is drawn together the plug assembly and is made up of the piston ring (2 and 2 ') on the inside rare earth magnetic (3 and 3 ') of the reset spring in grid cylinder stent, this grid cylinder stent, the drain valve (19 and 19 ') that is connected with the reset spring two ends, same polarity in the grid cylinder stent two ends in this drain valve (19 and 19 ') two outsides and two rare earth magnetics.

Be provided with the frequency changer circuit plate in the arrangement storehouse of shell inner cylinder body top, its switching circuit output is connected with stator coil (8 and 8 ').

By two inside rare earth magnetics of the same polarity on the grid cylinder stent two ends, no magnetic reset spring, the alternating magnetic field that the permanent magnetic piston assembly that no magnetic piston ring the is formed alternating current that reciprocating kinetic energy provides by frequency changer circuit from two iron cores and the stator coil of connecting mutually in cylinder body produces, pass the cylinder cap that insulating material constitutes, the permanent-magnet rare-earth ring at piston two ends is done repulsion with changes of magnetic field, attract to-and-fro motion, liquid is along with reciprocating piston volume generating period in the cavity of cylinder body two ends changes in the pump, just form, Negative Pressure Difference, push away, inhaling two pairs advances, drain valve opens and closes simultaneously, because the each run of piston is all being inhaled, the discharge opeing body has improved the working efficiency of pump effectively.

The utility model has following advantage with existing comparing:

1, the utility model has adopted converter technique, the single phase industrial frequence electricity is transformed into the more alternating current of low frequency, offer stator coil, consequent alternating magnetic field is produced powerful repulsion, attraction force to the permanent-magnetic clamp work at piston two ends by the effect of changes of magnetic field, realize the magnetic transmission, replaced the mechanical axis transmission of traditional motor.Invisible the action of a magnetic field power is isolated electric component and the complete static seal of the pump of pumping working medium, stopped easily other pump classes because of the dynamic seal wearing and tearing cause working medium race, emit, leak drawback, also less than the hidden danger that causes operation troubles because of motor short circuit, phase shortage, overvoltage, factor such as under-voltage.The utility model is realized static seal completely, and the self-priming, the current stabilization that are specially adapted to liquid such as rare, expensive, malicious, pure or volatilization, the burn into of R﹠D institution be inflammable, explosive are carried.When carrying potable water, what obtain is magnetized water.

2, the utility model realizes that full stroke does useful work, compares with the power pump with existing, energy-conservationly reaches 30%.Have energy-efficient, electromechanical, volume is little, in light weight, noise is low, the life-span is long, compact structure, use is easy to maintenance and advantage such as safe and reliable to operation.

The explanation of accompanying drawing drawing:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the frequency changer circuit functional-block diagram.

Following the utility model will describe in detail embodiment (in conjunction with the accompanying drawings).

The utility model shown in Figure 1 includes the cast iron housing 12 that has power line wire-feeding hold 11, the intake pipe 17 and waste pipe 10 and the frequency changer circuit plate 13 that fuse with shell 12 castings.

And arranged on left and right sides respectively is provided with iron core (6 and 6 ') in the shell 12, respectively is provided with the stator coil (8 and 8 ') of mutual series connection on this iron core (6 and 6 ').

In intake pipe 17, be provided with shunting wall 18, respectively be provided with inlet valve (16 and 16 ') in these shunting wall 18 both sides.

Between two iron cores (6 and 6 '), be provided with the no magnetic metal cylinder body 1 that two ends have nonmetal insulation cylinder cap (5 and 5 ') and pod apertures (4 and 4 '), in this cylinder body 1, be provided with permanent magnetic piston assembly 7, this permanent magnetic piston assembly 7 is by highstrenghtpiston's grid cylinder stent 15, no magnetic reset spring 14 in this grid cylinder stent 15, the drain valve (19 and 19 ') that is connected with reset spring 14 two ends, inside rare earth magnetic (3 and 3 ') and the piston ring (2 and 2 ') on this rare earth magnetic (3 and 3 ') of same polarity formed in grid cylinder stent (15) two ends in drain valve (19 and 19 ') two outsides.

Be provided with frequency changer circuit plate 13 in the arrangement storehouse 9 of shell 12 inner cylinder bodies 1 top, its switching circuit output is connected with stator coil (8 and 8 ').

Use when implementing, after connecting power supply, the alternating current that the frequency changer circuit (see figure 2) of frequency changer circuit plate 13 provides (frequency＜50HZ) make the alternation magnetic line of force of stator coil (8 and 8 ') generation pass the cylinder cap (5 and 5 ') that insulating material is made, permanent-magnetic clamp (3 and 3 ') to the piston two ends is done repulsion, attract, under reset spring (14) effect, make it to-and-fro motion, liquid changes at cylinder body 1 two ends cavity volume generating period because of pistons reciprocating in the pump, just form, Negative Pressure Difference, push away, inhaling two pairs advances, drain valve (16 and 16 ', 19 and 19 ') open and close simultaneously, liquid is from pod apertures (4 and 4 '), drain valve (19 and 19 ') and waste pipe 10 flow out, each stroke of piston has greatly improved working efficiency all at suction liquid.

Claims

1, a kind of hydromagnetic piston frequency conversion reciprocating pump, is characterized in that intake pipe [17] and waste pipe [10] and the frequency changer circuit plate [13] that includes the shell [12] that has wire-feeding hold [11], fuses with shell [12] casting:

A) the interior and arranged on left and right sides of shell [12] respectively is provided with iron core [6 and 6 '], respectively is provided with the stator coil [8 and 8 '] of mutual series connection on described iron core [6 and 6 '];

B) in intake pipe [17], be provided with shunting wall [18], respectively be provided with inlet valve [16 and 16 '] in described shunting wall [18] both sides;

C) between two iron cores [6 and 6 '], be provided with the cylinder body [1] that two ends have cylinder cap [5 and 5 '] and pod apertures [4 and 4 '], in this cylinder body [1], be provided with permanent magnetic piston assembly [7], described permanent magnetic piston assembly [7] is by grid cylinder stent [15], reset spring [14] in this grid cylinder stent [15], the drain valve [19 and 19 '] that is connected with reset spring [14] two ends, in grid cylinder stent [15] two ends in drain valve [19 and 19 '] two outsides, there is the piston ring [2 and 2 '] on inside rare earth magnetic of same polarity [3 and 3 '] and the rare earth magnetic [3 and 3 '] to form

D) be provided with frequency changer circuit plate [13] in the arrangement storehouse [9] of shell [12] inner cylinder body [1] top, its switching circuit output is connected with stator coil [8 and 8 '].