CN1360153A - Electromagnetic pump - Google Patents

Abstract

The invention discloses an electromagnetic pump with a non-metallic liquid as the medium, comprising a pump body, a magnetic pole, an electrode, a controller, a filter net, a liquid inlet and a liquid outlet, and is characterized in that the magnetic pole is conventional rare earth permanent magnet material . Compared with the prior art, the electromagnetic pump of the present invention has the advantages of low cost, high efficiency, and can be used in various occasions, such as the extraction of seawater and the discharge of sewage, and is especially suitable for the middle and later stages of oil wells in coastal oil fields. mining.

Description

Solenoid pump

Technical field

The present invention relates to pumps, more precisely, to electromagnetic pumps with non-metallic liquid as the medium.

Background technique

At present, mechanical pumps are mostly used as transport equipment for the transport of liquid media. The mechanical wear of traditional mechanical pumps during work is a problem that cannot be ignored, and it will inevitably produce large noises that will pollute the environment, and the mechanical efficiency is not very high.

Under special circumstances, a pump body with a special structure is used to replace the mechanical pump to obtain better operating efficiency, and the electromagnetic pump emerges as the times require. The electromagnetic pump changes the concept of the traditional "pump" from mechanical rotation to linear motion of fluid with almost no mechanical loss, which greatly improves the efficiency of the medium transported by the pump. The liquid metal electromagnetic pump was described in the "Research on the Design Model of a Liquid Metal Electromagnetic Pump" in the International IEEE Electromagnetic Subvolume, Volume 34, Issue 5, September 1998, p2956-2959. The electromagnetic pump has the characteristics of high efficiency, no wear, no vibration, no noise and flexible control, which is a major breakthrough in the field of electromagnetic applications.

Current electromagnetic pumps use metal liquid as the medium, adopt superconducting technology, and are used in military and high-tech fields. Therefore, the application range is small and the cost is extremely high, which limits the wide application of electromagnetic pumps.

Contents of Invention

The purpose of the present invention is to overcome the deficiencies in the prior art and provide an electromagnetic pump with non-metallic liquid as the medium, using abundant rare earth permanent magnet materials in my country, low cost, high efficiency and applicable to various occasions.

The electromagnetic pump with non-metallic liquid as the medium of the present invention includes a pump body, magnetic poles, electrodes, controller, filter screen, liquid inlet and liquid outlet, and is characterized in that the magnetic poles are conventional rare earth permanent magnet materials.

The magnetic pole is made of NdFeB material or nanometer NdFeB material.

The electrodes are copper plates.

Compared with the prior art, the electromagnetic pump with non-metallic liquid as the medium of the present invention has the advantages of low cost, high efficiency and can be used in various occasions, such as seawater extraction and sewage discharge, and is especially suitable for medium and long-term pumping in coastal oil fields. , late oil well exploitation.

Description of drawings

Fig. 1 is the principle schematic diagram of electromagnetic pump of the present invention;

Fig. 2 is a structural schematic diagram of the electromagnetic pump of the present invention.

Instructions for the marking of main parts in the figure:

1——Pump Body 2——Magnetic Pole

3——Electrode 4——Controller

5——Filter 6——Liquid inlet

7——Liquid outlet F→Indicates the force direction of the fluid

B→Indicates the direction of the magnetic force line I→Indicates the direction of the current

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

The electromagnetic pump is mainly based on electromagnetic theory, according to the principle that the carrier fluid is stressed and moves under the action of a magnetic field, through the analysis and calculation of the magnetic field distribution in the pump and the ionization of the fluid medium under the action of an electric field, and through simulation analysis and Research and develop an electromagnetic pump suitable for non-metallic liquid as the medium.

The magnetic pole selection of the electromagnetic pump is very important, and the NdFeB or nanometer NdFeB material is the first choice in the present invention. The molded and fired permanent magnet material is firstly magnetized, and then subjected to dipping treatment, the purpose of which is to increase the insulation performance of the permanent magnet material. The processed magnetic poles 2 are respectively arranged on the upper part and the lower part of the pump body 1 as N poles and S poles, and the magnetic field can also be arranged in two or more layers. The electrode 3 is made of copper plate, which is respectively arranged on the left and right parts of the pump body 1, and is divided into a "+" pole and a "-" pole.

The magnetic pole 2 and the electrode 3 are fixed on the specified position of the pump body 1 by fasteners. In practical applications, the magnetic field strength is generally greater than 8000 Gauss. The relevant technical standards for the magnetic pole 2 and the electrode 3 should be determined by experiments according to actual needs.

The position of the liquid inlet 6 of the pump body 1 is provided with a filter net 5, and the liquid outlet 7 is generally arranged in a circular shape.

The controller 4 is composed of a microcomputer, peripheral components and a power drive template. The controller 4 is connected with the pump body 1 by wires, and is arranged at an operation place other than the liquid to be transported.

The electromagnetic pump of the present invention is the same as the conventional submersible pump when in use, the electromagnetic pump can be put into the liquid to be transported, and then the power can be turned on to work. According to different transmission media and the requirements for different flow rates of the transmission media, the control voltage can be adjusted to complete the control of the transportation of various liquids.

In practical applications, if the power is not enough, that is, when the flow rate needs to be increased, the method of increasing the electrode area or the number of magnetic pole pairs can be adopted. Of course, the corresponding controller power should also be increased.

The electromagnetic pump of the present invention uses non-metallic liquid as the medium. As long as the liquid medium has proper conductivity, the liquid will be stressed when electrified, so the higher the conductivity of the liquid medium, the better. For example, the present invention can be used to extract seawater and discharge sewage, and is especially suitable for the exploitation of oil wells in the middle and later stages of coastal oil fields, because oil wells in the middle and later stages often need to inject seawater to extract oil.

Claims (4)

1. A kind of nonmetallic liquid is the electromagnetic pump of medium, comprises pump body, magnetic pole, electrode, controller, filter screen, liquid inlet and liquid outlet, it is characterized in that, described magnetic pole is conventional rare earth permanent magnet material. 2. The electromagnetic pump according to claim 1, wherein the magnetic pole is made of NdFeB material. 3. The electromagnetic pump according to claim 1, characterized in that, the magnetic pole is made of nanometer neodymium-iron-boron material. 4. The electromagnetic pump according to claim 1, wherein the electrodes are copper plates.

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