CN2215352Y

CN2215352Y - Air magnetic separator

Info

Publication number: CN2215352Y
Application number: CN 94212122
Authority: CN
Inventors: 苏斌
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-05-15
Filing date: 1994-05-15
Publication date: 1995-12-20
Anticipated expiration: 2004-05-15

Abstract

The utility model relates to an air magnetic separator. The utility model utilizes the paramagnetic performance and the diamagnetic performance of gas to be distinguished from a device which separates the paramagnetic gas from the diamagnetic gas under the room temperature and the approximately normal pressure. The utility model is especially suitable for separating the oxygen gas from the nitrogen gas in the air. A separation pipeline with a ventilation-pore structural pipe wall is added with a corresponding separation magnetic field, the pressure outside the pipe wall is reduced, and thus the utility model divides the mixed gas into the paramagnetic gas and the diamagnetic gas on the interior and the exterior of the pipe wall. The utility model is suitable for the industrial production of large amounts of oxygen gas or nitrogen gas with low purity requirements, etc.

Description

Air magnetic separator

The utility model relates to the device that a kind of gas separates, especially the device of airborne oxygen and nitrogen separation.

At present, known oxygen and nitrogen separation device mainly are to utilize the congealing point of oxygen molecule and nitrogen molecular do not coexist very oxygen and nitrogen separation in the following air of low temperature, accumulating they the time need high pressure resistant device, make the cost and the danger of production accumulating all higher, especially to the purity requirement of oxygen or nitrogen when not high, then cost is very high to use these liquid oxygen or liquid nitrogen product.

The purpose of this utility model provide a kind of can be in room temperature and near under the normal pressure paramagnetism gas and diamagnetism gas being carried out the gas separated magnetic separator, the oxygen nitrogen magnetic separator that especially utilizes the diamagnetism of the paramagnetism of oxygen and nitrogen that oxygen and nitrogen are carried out room temperature and separates down near normal pressure.

Above-mentioned purpose is achieved in that the pipe of selecting the suitable tube wall with ventilative pore structure for use is as separating pipe, closed container screen pack on the air inlet end cover of separating pipe that separating pipe passes pressure reducer enters the gas of separating pipe with purification, the other end of separating pipe connects paramagnetism gas vent passage, paramagnetism gas vent passage can link to each other with compression pump so that paramagnetism gas makes and keeps in its closed container than the low air pressure of air inlet end place air pressure to flow out pressure reducer more than or equal to the air pressure of external pressure, when entering, paramagnetism gas and diamagnetism gas has magnetic direction when being parallel in the separating pipe that separates magnetic field of bearing of trend of separating pipe, diamagnetism gas enters in the drawdown pump because of the outer lower hole that passes tube wall of air pressure of tube wall, and paramagnetism gas is then because of the effect in magnetic field and the barometric gradient in separating pipe is stayed in the separating pipe and to the diffluence of paramagnetism gas vent passage.Diamagnetism gas vent passage one end is connected with the drawdown pump gas outlet end, and its other end can link to each other with compression pump so that diamagnetism gas flows out with the air pressure more than or equal to external pressure.

Separation magnetic field can be selected in the following method and cause: 1, caused by the conductive coil on the separating pipe outer wall.2, cause by magnet at separating pipe periphery or inner core.3, by in the separating pipe periphery or inner core add magnet and on separating pipe outer wall or magnet, cause again around conductive coil.4, tube wall or the ventilated membrane on this tube wall by separating pipe is that permanent magnetism material or paramagnet cause, or adds said method and cause.

Separated gas can be the paramagnetic oxygen of tool and the diamagnetic nitrogen of tool and other gas that is mixed by paramagnetism gas and diamagnetism gas in the air.

Adopt such scheme, can be in room temperature and near under the normal pressure, with device simple in structure certain mist is separated, especially to oxygen and nitrogen, can separate in the place of any free gas, avoid the purity requirement of oxygen or nitrogen being carried out the expensive and dangerous of cryogenic separation, high pressure accumulating when not high.

Further specify below in conjunction with drawings and Examples.

Fig. 1 is the vertical section organigram of some embodiment of oxygen nitrogen magnetic separator.

Fig. 2 is the I of Fig. 1--the I cutaway view.

Among the figure 1, air inlet end 2, screen pack 3, tube wall 4, conductive coil 5, separating pipe 6, the closed container 7 of pressure reducer, drawdown pump 8, paramagnetism gas vent passage 9, diamagnetism gas vent path 10, oxygen compression pump 11, nitrogen compression pump with ventilative pore structure

In the embodiment shown in fig. 1, separating pipe (5) passes the closed container (6) of pressure reducer, there is screen pack (2) separating pipe (5) other end to connect paramagnetism gas vent passage (8) on its air inlet end (1), when drawdown pump (7) is worked, airborne diamagnetism gas passes the outer wall coiling has the tube wall with air-vent gap structure (3) of conductive coil (4) to enter the closed container (6) of pressure reducer, through diamagnetism gas vent passage (9) and nitrogen compression pump (11) output, paramagnetism gas is then through paramagnetism gas vent passage (8) and oxygen compression pump (10) output again.

Claims

1, a kind of gas magnetic separator, it is characterized in that: it is made of screen pack, magnetic separator, pressure reducer, paramagnetism gas vent passage, diamagnetism gas vent passage, magnetic separator is that the separating pipe by the tube wall with ventilative pore structure constitutes with the magnetic field of separating that magnetic direction is parallel to the bearing of trend of this separating pipe, the air inlet end of separating pipe connects screen pack, its other end connects paramagnetism gas vent passage, the periphery of separating pipe is connected with the closed container of pressure reducer, and the gas outlet of pressure reducer is connected with diamagnetism gas vent passage.

2, gas magnetic separator according to claim 1 is characterized in that: separate magnetic field and formed by the conductive coil on the separating pipe outer wall.

3, gas magnetic separator according to claim 1 is characterized in that: separate magnetic field and formed by the magnet at separating pipe periphery or inner core.

4, gas magnetic separator according to claim 3, it is characterized in that: the periphery at separating pipe outer wall or magnet is wound with conductive coil.

5, according to claim 1 or claim 2 or claim 3 or the described gas magnetic separator of claim 4, it is characterized in that: the tube wall of separating pipe or the ventilated membrane on this tube wall are permanent magnetism material or paramagnet.