CN110578667A

CN110578667A - Magnetic compressor and working method thereof

Info

Publication number: CN110578667A
Application number: CN201910949556.8A
Authority: CN
Inventors: 梁世强; 江亚柯; 段炼; 刘志刚; 贾磊; 吕明明; 黄继凯; 孔令健
Original assignee: Energy Research Institute of Shandong Academy of Sciences
Current assignee: Energy Research Institute of Shandong Academy of Sciences
Priority date: 2019-10-08
Filing date: 2019-10-08
Publication date: 2019-12-17

Abstract

The invention discloses a magnetic compressor and a working method thereof, which solve the problems that the structure is relatively complex and the gas can not be effectively compressed in the prior art, and the Lorentz force is utilized to drive an electrified metal ball in a magnetic field to circularly roll along an annular channel so as to compress the fluid in the channel; the technical scheme is as follows: the device comprises a closed annular pipeline, wherein a metal ball tightly attached to the inner wall of the annular pipeline is arranged in the annular pipeline; the outer side wall of the annular pipeline is connected with the positive pole of the direct-current power supply, the inner side wall of the annular pipeline is connected with the negative pole of the direct-current power supply, and when the annular pipeline is arranged in a magnetic field, the metal ball can move along the inner wall of the annular pipeline under the action of magnetic force to compress internal fluid.

Description

Magnetic compressor and working method thereof

Technical Field

The invention relates to the field of compressors, in particular to a magnetic compressor and a working method thereof.

background

the compressor is the core equipment in the refrigerating system, and the refrigeration cycle can be ensured only by converting electric energy into mechanical work and compressing low-temperature and low-pressure gaseous refrigerant into high-temperature and high-pressure gas. The conventional compressor can be divided into: reciprocating compressors, rotary compressors, axial compressors, jet compressors, screw compressors, and the like. As the most important component of a refrigeration system, the performance of the compressor largely determines the performance of the system, such as refrigeration effect, energy consumption level, etc. Particularly, under the condition that the current energy and environmental problems are severe, the energy saving requirement of the refrigeration equipment is increasingly strong, higher requirements are put on the working efficiency of the compressor, and the compressor needs to be further improved in the aspect of energy saving.

The inventor finds that the existing refrigeration compressor has larger volume in different degrees, but with the rapid development of technologies such as electronic chips, lasers, radars and the like, the technical requirement of micro-space cooling is more and more urgent, and a breakthrough is urgently needed to be realized in the aspect of miniaturization of the refrigeration device. As a novel compressor, the magnetic compressor is more suitable for being developed towards miniaturization, and is expected to make a breakthrough in the aspect of space cooling. However, most of the existing magnetic compressors cannot effectively compress gas or have low compression efficiency due to the structural limitation.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a magnetic compressor and a working method thereof, wherein Lorentz force is used for driving an electrified metal ball in a magnetic field to circularly roll along an annular channel so as to compress fluid in the channel.

The invention adopts the following technical scheme:

A magnetic compressor comprises a closed annular pipeline, wherein a metal ball tightly attached to the inner wall of the annular pipeline is arranged in the annular pipeline; the outer side wall of the annular pipeline is connected with the positive pole of the direct-current power supply, the inner side wall of the annular pipeline is connected with the negative pole of the direct-current power supply, and when the annular pipeline is arranged in a magnetic field, the metal ball can move along the inner wall of the annular pipeline under the action of magnetic force to compress internal fluid.

Furthermore, the annular pipeline is provided with a gate, when the gate is closed, fluid in the annular pipeline on two sides of the gate can be isolated, and when the gate is opened, the metal balls can be allowed to pass through.

Further, an air inlet valve connected with the annular pipeline is installed on one side of the gate, and an exhaust valve connected with the annular pipeline is installed on the other side of the gate; low pressure fluid flowing into the annular conduit from the inlet valve is compressed into high pressure fluid which is exhausted from the exhaust valve.

further, the air inlet valve and the air exhaust valve are arranged on the outer side wall of the annular pipeline.

further, the low-pressure fluid may be gas or gas-liquid mixed two-phase liquid.

Furthermore, the direction of the magnetic field is perpendicular to the cross section of the annular pipeline, and the directions of the N level and the S level are determined according to the movement direction of the required metal ball.

further, the magnetic field is generated by a magnet.

Furthermore, the pipe wall of the annular pipeline is made of insulating materials, a first annular conductor strip is arranged on one side, close to the ring center, of the inner wall of the pipe, a second annular conductor strip is arranged on one side, far away from the ring center, of the inner wall of the pipe, and the first annular conductor strip and the second annular conductor strip are always kept in contact with the two sides of the metal ball; the first annular conductor strip is connected with the negative pole of the direct current power supply, and the second annular conductor strip is connected with the positive pole of the direct current power supply.

The working method of the magnetic compressor comprises the following steps:

When the metal ball is positioned at the position A on one side of the gate, the gate is closed, and the air inlet valve and the air exhaust valve are both closed; when the metal ball is driven by Lorentz force and moves from the position A to one end position B in the length direction of the annular pipeline, fluid in front of the metal ball is compressed, the pressure of the fluid is increased, the volume of a rear space is increased, and the pressure of the fluid is reduced; near position B the inlet valve is open and the ball continues forward until it reaches a position E near the other side of the gate, all after which it is drawing air from the inlet valve.

Meanwhile, in the movement process from the position B to the other end position D in the length direction of the annular pipeline, the fluid in front of the metal ball is compressed, and when the position is close to the position D, the exhaust valve is opened, and the compressed fluid flows out of the exhaust valve; when the metal ball reaches the position E, the exhaust valve is closed, the air inlet valve is closed at the same time, the gate is opened, and when the metal ball returns to the position A, the gate is closed, so that one cycle is completed.

Compared with the prior art, the invention has the beneficial effects that:

(1) The invention uses Lorentz force to drive the electrified metal ball in the magnetic field to roll along the annular channel circularly, compresses the fluid in the channel, compresses the low-pressure fluid flowing into the annular pipeline from the air inlet valve into high-pressure fluid and discharges the high-pressure fluid from the exhaust valve, thereby playing the role of a compressor;

(2) The metal ball of the invention moves unidirectionally in the running process, and the energy loss is small; and simple structure, few parts are fit for miniaturization and micromation.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;

The device comprises an annular pipeline 1, a metal ball 2, a gate 3, a gate 4, an air inlet valve 5, an exhaust valve 6, an outer side wall 7, an inner side wall 8 and a magnetic field.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;

For convenience of description, the words "up", "down", "left" and "right" in this application, if any, merely indicate correspondence with the directions of up, down, left and right of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application.

The terms "mounted", "connected", "fixed", and the like in the present application should be understood broadly, and for example, the terms "mounted", "connected", and "fixed" may be fixedly connected, detachably connected, or integrated; the two components can be connected mechanically or electrically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and the terms used in the present invention should be understood as having specific meanings to those skilled in the art.

as described in the background art, the prior art has disadvantages of relatively complicated structure and inefficient compression of gas, and the present invention provides a magnetic compressor and a method for operating the same in order to solve the above technical problems.

The first embodiment is as follows:

The invention is described in detail below with reference to fig. 1, specifically, the structure is as follows:

The embodiment provides a magnetic compressor, which is based on the electromagnetic gun principle, and utilizes Lorentz force to drive an electrified metal ball 2 in a magnetic field 8, so that the electrified metal ball circularly rolls along an annular channel and compresses fluid in the channel; the device comprises an annular pipeline 1, metal balls 2, a gate 3, an air inlet valve 4 and an exhaust valve 5, wherein the annular pipeline 1 is an annular metal pipe, and two ends of the annular pipeline are respectively provided with an arc section; the metal ball 5 is arranged in the annular pipeline 1, the metal ball 5 is tightly attached to the inner wall of the annular pipeline 1, and the metal ball 5 can move along the inner wall of the annular pipeline 1 under the action of magnetic force.

The outer side wall 6 of the annular pipeline 1 is connected with the positive pole of the direct-current power supply, the inner side wall 7 of the annular pipeline 1 is connected with the negative pole of the direct-current power supply, and the outer side wall 6 of the annular pipeline 1 is insulated from the inner side wall 7 of the annular pipeline. Furthermore, the pipe wall of the annular pipeline 1 is made of an insulating material, a first annular conductor strip is arranged on one side, close to the ring center, of the inner wall of the pipe, a second annular conductor strip is arranged on one side, far away from the ring center, of the inner wall of the pipe, and the first annular conductor strip and the second annular conductor strip are always kept in contact with two sides of the metal ball 2; the first annular conductor strip is connected with the negative pole of the direct current power supply, and the second annular conductor strip is connected with the positive pole of the direct current power supply.

The annular pipeline 1 is provided with a gate 3, when the gate 3 is closed, the fluid in the annular pipeline 1 on two sides of the gate can be isolated, and when the gate is opened, the metal balls 2 can be allowed to pass through. An air inlet valve 4 is arranged on one side of the gate 3, the air inlet valve 4 is arranged on the outer side wall 6 of the annular pipeline 1, and when the air inlet valve 4 is opened, fluid outside the annular pipeline 1 is allowed to enter the annular pipeline 1, and when the air inlet valve 4 is closed, the fluid outside the annular pipeline is isolated.

And an exhaust valve 5 is arranged on the other side of the gate 3, the exhaust valve 5 is positioned on the outer side wall 6 of the annular pipeline 1, when the exhaust valve 5 is opened, the fluid in the annular pipeline 1 is allowed to flow out of the annular pipeline 1, and when the exhaust valve 5 is closed, the fluid in the annular pipeline 1 is isolated.

The low-pressure fluid flowing into the annular pipe 1 from the inlet valve 4 is compressed by the moving metal ball 2 into high-pressure fluid, and is discharged from the exhaust valve 5, thus playing the role of a compressor. The fluid entering the annular pipeline 1 can be gas or gas-liquid mixed two-phase liquid and can not be incompressible fluid.

The toroidal tube 1 is mounted in a magnetic field 8, and the magnetic field 8 can be generated by various magnets such as a magnet, an electromagnet, and the like. In the present embodiment, the magnetic field 8 can be generated by a magnet, the direction of the magnetic field 3 is perpendicular to the cross section of the circular pipe 1, and the N-level and S-level directions are determined according to the required moving direction of the metal ball 2.

a certain distance from one side of the annular pipeline 1 close to the gate 3 is a position A, two ends of the annular pipeline 1 in the length direction are a position B and a position D respectively, a position opposite to the gate 3 is a position C, and a certain distance from the other side of the annular pipeline 1 close to the gate 3 (the distance is larger than the distance from the position A to the gate 3) is a position E.

The working process of the magnetic compressor in the embodiment is as follows:

A direct current power supply is switched on, the magnetic compressor is placed in a magnetic field 8, when the metal ball 2 is located at the position A, the gate 3 is closed, and the air inlet valve 4 and the air exhaust valve 5 are both closed; when the metal ball 2 moves from the position a to the position B by the lorentz force, the fluid in front of the metal ball (in the clockwise direction of the metal ball 2) is compressed, the fluid pressure increases, the volume of the rear space increases, and the fluid pressure decreases.

Near position B the inlet valve 4 is open and the metal ball 2 continues to move forward until it reaches a position close to E, after which it is sucking air from the inlet valve 4. At the same time, the fluid in front of the metal ball 2 is compressed during the movement from position B to position D.

When the position D is approached, the exhaust valve 5 is opened, and the compressed fluid flows out of the exhaust valve 6; when the metal ball 2 reaches the position E, the exhaust valve 5 is closed, the air inlet valve 4 is closed at the same time, the gate 3 is opened, and when the metal ball 2 returns to the position A, the gate 3 is closed, thereby completing one cycle.

the above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A magnetic compressor is characterized by comprising a closed annular pipeline, wherein a metal ball tightly attached to the inner wall of the annular pipeline is arranged in the annular pipeline; the outer side wall of the annular pipeline is connected with the positive pole of the direct-current power supply, the inner side wall of the annular pipeline is connected with the negative pole of the direct-current power supply, and when the annular pipeline is arranged in a magnetic field, the metal ball can move along the inner wall of the annular pipeline under the action of magnetic force to compress internal fluid.

2. The magnetic compressor of claim 1, wherein the annular duct is provided with a gate, the gate is closed to isolate the fluid inside the annular duct on both sides of the gate, and opened to allow the metal balls to pass through.

3. The magnetic compressor as claimed in claim 2, wherein the gate is provided at one side thereof with an inlet valve connected to the annular duct and at the other side thereof with an outlet valve connected to the annular duct; low pressure fluid flowing into the annular conduit from the inlet valve is compressed into high pressure fluid which is exhausted from the exhaust valve.

4. The magnetic compressor according to claim 3, wherein the air inlet valve and the air outlet valve are disposed on the outer side wall of the annular duct.

5. The magnetic compressor of claim 3, wherein the low-pressure fluid is a gas or a gas-liquid mixed two-phase liquid.

6. A magnetic compressor, according to claim 1, characterized in that said magnetic field direction is perpendicular to the toroidal tube cross-section.

7. A magnetic compressor, according to claim 6, characterized in that said magnetic field is generated by magnets.

8. The magnetic compressor according to claim 1, wherein the pipe wall of the annular pipe is made of an insulating material, a first annular conductor strip is arranged on one side of the inner wall of the pipe close to the center of the ring, a second annular conductor strip is arranged on one side of the inner wall of the pipe far from the center of the ring, and the first annular conductor strip and the second annular conductor strip are always kept in contact with two sides of the metal ball; the first annular conductor strip is connected with the negative pole of the direct current power supply, and the second annular conductor strip is connected with the positive pole of the direct current power supply.

9. the operation method of a magnetic compressor according to any one of claims 1 to 8, wherein when the metal ball is in the position a on the side of the shutter, the shutter is closed, and both the intake valve and the exhaust valve are closed; when the metal ball is driven by Lorentz force and moves from the position A to one end position B in the length direction of the annular pipeline, fluid in front of the metal ball is compressed, the pressure of the fluid is increased, the volume of a rear space is increased, and the pressure of the fluid is reduced; when the metal ball approaches the position B, the air inlet valve is opened, the metal ball continues to move forwards until the metal ball reaches a position E close to the other side of the gate, and the metal ball sucks air from the air inlet valve at the rear part of the metal ball;