KR20170034655A

KR20170034655A - Simplified Nitrogen Generator

Info

Publication number: KR20170034655A
Application number: KR1020150133215A
Authority: KR
Inventors: 김홍국; 윤태현
Original assignee: 김홍국; 윤태현
Priority date: 2015-09-21
Filing date: 2015-09-21
Publication date: 2017-03-29
Also published as: KR101723191B1

Abstract

The present invention relates to a simplified nitrogen generator.
A compressor for compressing atmospheric air, an inlet pipe connected to the compressor for supplying the compressed air to the nitrogen tank, an inlet pipe provided with a valve for allowing the user to open and close, Comprising an inlet configured to extract nitrogen and configured to be connected to the inlet pipe at one quarter of the lower surface on one side and an outlet configured to be connected to the outlet pipe at a quarter of the upper edge on the other side, The present invention relates to a simplified nitrogen generator comprising a tank and a nitrogen gas tank, and a discharge pipe provided with a valve for supplying high-purity nitrogen adsorbed in a nitrogen tank to an external apparatus and allowing the user to open and close the tank.

Description

Simplified Nitrogen Generator [0002]

The present invention relates to a simplified nitrogen generator. And more particularly, to a simplified nitrogen generator capable of producing a nitrogen product (N2) of low purity and high purity, which is composed of a horizontal structure in which one compressor and one adsorber are horizontally placed in the production of nitrogen.

In general, nitrogen is a nonmetallic element that exists mainly in gas in nature and is a noncombustible gas which is composed of colorless, tasteless, unspoken gas and does not react with other elements but slightly soluble in water.

The nitrogen (N2) is stable, the atom (N) is chemically active, the boiling point is -195.5 ℃, and the freezing point is -209.9 ℃. As the boiling point of nitrogen is lower than that of oxygen, I have.

High purity nitrogen is used for various chemical processes, steelmaking, smelting and other industrial uses. Various techniques are known for producing nitrogen by separating air. However, when producing a relatively small amount of nitrogen, It is economically advantageous to use the adsorption (PSA) method.

Accordingly, Korean Patent Laid-Open No. 1998-070453 has filed a patent application for a method of producing nitrogen using an oxygen-selective adsorbent.

A pressure swing adsorption (PSA) method of applying a adsorbent bed predominantly selective adsorption to a less favorable gas in equilibrium in an enclosure to extract a better gas from a mixture of better and less favorable gases,

comprising the steps of: a) feeding the mixture to the adsorbent bed to adsorb the less favorable gas to pressurize the adsorbent bed at a higher pressure;

b) extracting the better flow of gas from the adsorbent bed at bed pressure and storing at least a portion of the better flow of gas in the product tank;

c) supplying a pore gas into said reservoir to adsorb less favorable gas from said adsorbent bed;

d) withdrawing the adsorbent bed in a low pressure region to further adsorb a less favorable gas from the adsorbent bed;

e) purging the adsorbent bed by feeding the void gas from the storage tank to the adsorbent bed; and

f) flowing the gaseous gas from the storage tank to pressurize the adsorption bed to an intermediate pressure,

And repeating steps a to f until the requirement for the better gas is met.

However, as the overall installation space is increased, the space and efficiency are inferior, and the contact with the activated carbon of the multi-layered structure is not smooth due to the increase in the adsorption rate.

(Patent 0001) Korean Patent Publication No. 1998-070453

In order to solve the problems of the prior art, it is an object of the present invention to provide a nitrogen product (N2) having a low cost and a high purity, which is constituted by a horizontal structure in which one compressor and one adsorber are horizontally disposed in the production of nitrogen The present invention provides a simplified nitrogen generator.

In addition, the present invention provides a simplified nitrogen generator which is composed of one compressor and one adsorber, is easy to install in a small space, and can save manufacturing cost.

According to an aspect of the present invention, there is provided a simplified nitrogen generator comprising a compressor integrally configured to compress air in the atmosphere, and a compressed air connected to the compressor to supply compressed air to a nitrogen tank, An inlet configured to extract nitrogen from the air supplied from the compressor and configured to be connected to the inlet pipe at a quarter of a point on the lower surface of the inlet, A nitrogen tank including a discharge port configured to be connected to the discharge pipe at a quarter of the upper end on the side of the upper portion and high purity nitrogen adsorbed in the nitrogen tank constituted in the nitrogen tank is supplied to an external device, And a discharge pipe in which a valve is installed so that the valve can be opened.

The nitrogen tank may further include an adsorption tower disposed on an outer circumferential surface of the adsorption tower and capable of extracting purified nitrogen by separating compressed air supplied from the compressor into oxygen and various elements.

In addition, the compressor and the nitrogen tank are characterized by comprising a configuration of a disorganized configuration.

In addition, the discharge pipe may include a storage tube formed by wrapping an outer peripheral surface of the nitrogen tank to store nitrogen, and a plurality of supports are formed on an inner circumferential surface of the storage tube.

According to the embodiment of the present invention, a nitrogen product (N2) having a low manufacturing cost and a high purity can be obtained by constituting a horizontal structure in which one compressor and one adsorber are horizontally disposed in the production of nitrogen.

In addition, according to the embodiment of the present invention, since it is composed of one compressor and one adsorber, it is easy to install in a small space, and manufacturing cost can be saved.

FIG. 1 is a flowchart of nitrogen generation in a simplified nitrogen generator according to an embodiment of the present invention. FIG.
2 is a perspective view of a simplified nitrogen generator according to an embodiment of the present invention,
3 is a top view of a simplified nitrogen generator according to one embodiment of the present invention,
4 is a perspective view of a simplified nitrogen generator according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It should be understood that various equivalents and modifications are possible.

FIG. 2 is a perspective view of a simplified nitrogen generator according to an embodiment of the present invention; FIG. 3 is a simplified view of a nitrogen generator according to an embodiment of the present invention; FIG. 4 is a perspective view of a simplified nitrogen generator according to another embodiment of the present invention. FIG.

The nitrogen generator of the present invention includes a pressurization step for increasing the adsorption pressure, an adsorption step for generating nitrogen gas at a constant adsorption pressure, a blowdown step for regenerating the inside of the adsorption column, And a PSA process consisting of a purge step to complete the regeneration in the decompression step and a pressure equalization step to reduce the loss by using a part of the lost energy. do.

Here, PSA (Pressure Swing Adsorption) is an abbreviation of pressure swing adsorption. It performs the function of separating gas components by using pressure fluctuation. It is a new air separation method using CMS (Carbon molecular seve) It is a process that has various advantages such as economic efficiency and stability.

The pressure swing adsorption (PSA) system is a method of obtaining purified pure high purity nitrogen by repeatedly adsorbing and desorbing nitrogen present in the atmosphere with oxygen and other small amounts of atoms. In the atmosphere, nitrogen is 78.03, oxygen is 20.99, argon is 0.94, hydrogen is 0.01 , Carbon dioxide 0.03, neon 0.0012, helium 0.00043, krypton 0.000005, and xenon 0.0000006, nitrogen and oxygen occupy more than 99% of the volume. When oxygen is separated, nitrogen has a high purity of 99% or more.

The simplified nitrogen generator includes a supply pipe 120 connected to an oxygen supplier (not shown) to supply the sucked air, a compressor 130 connected to the supply pipe 120 and configured to compress oxygen, a compressor An inlet pipe 140 connected to the inlet pipe 140 and connected to the nitrogen tank 150 to supply compressed air to the nitrogen tank 150 and a nitrogen tank connected to the inlet pipe 140 and configured to separate oxygen and various elements contained in the air And an exhaust pipe 170 connected to the nitrogen tank 150 and configured to discharge nitrogen separated from the oxygen tank 150. The exhaust pipe 170 is connected to the nitrogen tank 150 and is configured to adsorb oxygen to extract nitrogen, ).

The supply pipe 120 connected to the oxygen supplier is a device configured to deliver the filtered air to the compressor 130. The supply pipe 120 is disposed at a lower portion of the compressor 130 and is connected to the compressor 130, It is preferable that the air supplied from the supply pipe 120 is supplied to the lower portion of the compressor 130 as it is connected to the lower end of the compressor 130. However,

The compressor 130 connected to the supply pipe 120 is a device configured to compress the air supplied from the supply pipe 120 and has a tank structure elongated in the horizontal direction so that the compressed air can be smoothly moved downward It is needless to say that, in the case where the oxygen supplier is not constituted, it is also possible to constitute a device for separately sucking air in order to supply the air in the air.

In addition, it is preferable that the compressor 130 compresses a pressure equal to or higher than a certain level in compressing the air. In the present invention, a pressure of 0.05 to 1.0 MPa is preferably generated.

The inlet pipe 140 formed in the upper portion of the compressor 130 is a device configured to supply air of a predetermined or higher pressure generated by the compressor 130 to the nitrogen tank 150. The upper portion of the compressor 130, It is preferable that the inlet pipe 140 is connected to a lower portion of the nitrogen tank 150 and the valve 180 is formed at a portion where the inlet pipe 140 is divided into two nitrogen tanks 150 so that the user can open and close the valve 180 .

The nitrogen tank 150 coupled to the inlet pipe 140 is a device configured to receive the compressed air from the compressor 130 and separate the oxygen present in the compressed air and is disposed in the same line as the compressor 130 So that the compressed air generated from the compressor 130 can be smoothly transferred to the nitrogen tank 150.

When the nitrogen tank 150 is formed on one surface of the inflow pipe 140, the inflow pipe 151 is formed at a quarter point from the lower end and the inflow pipe 140 is formed at the inflow port 151, 140 can be firmly formed, the high-pressure air generated by the compressor 130 can be positioned at the bottom, and the oxygen absorption rate can be increased, thereby maximizing nitrogen production.

That is, when the pipe supplied from the compressor 130 is supplied to the center or the upper portion of the nitrogen tank 150, as the compressed air moves upward to the empty space, deflection occurs due to the friction of the compressed air, It is preferable to supply at a quarter point from the lower portion of the nitrogen tank 150, because a trouble may occur in the production of laughs.

The nitrogen tank 150 and the compressor 130 may be positioned in the same line so that the compressor 130 and the nitrogen tank 150 are disposed at a sharp angle so that oxygen can flow smoothly into the nitrogen tank 150. [ And the nitrogen generated in the nitrogen tank 150 can be smoothly discharged through the discharge pipe 170. [0064]

The adsorption tower 160 formed on the outer circumferential surface of the nitrogen tank 150 is a device configured to extract only pure nitrogen by separating oxygen and various elements contained in the compressed air supplied from the nitrogen tank 150.

The adsorption tower 160 repeatedly performs adsorption and desorption to extract nitrogen from the air present in the nitrogen tank 150. When adsorbed, the molecular weight of nitrogen is 0.071 nm and the molecular weight of oxygen is 0.060 nm , Since the molecular weight of oxygen is smaller than the molecular weight of nitrogen, the adsorption rate of oxygen is higher than the adsorption rate of nitrogen.

In addition, the adsorbed air is desorbed into the nitrogen tank 150, and the desorbed air is adsorbed again in the adsorption tower 160, so that the adsorbed air can be adsorbed and desorbed in a double manner.

Using this principle, oxygen and various elements are separated from the nitrogen tank 150, the nitrogen remains in the nitrogen tank 150, and the nitrogen tank 150 produces high purity nitrogen with a purity of 95 to 99%.

The discharge pipe 170 formed on the other side of the nitrogen tank 150 constitutes the discharge port 153 at a quarter point from the upper end and the discharge pipe 170 is connected to the discharge port 153, And the pure nitrogen generated in the adsorption tower 160 can be smoothly discharged through the discharge pipe 170. [

That is, the inlet pipe 140 and the outlet pipe 170 connected to the nitrogen tank 150 are respectively disposed at a quarter point from the bottom of the nitrogen tank 150 and a quarter point from the top of the nitrogen tank 150, Is constructed so that the pure nitrogen extracted from the nitrogen gas can be moved obliquely in a predetermined direction, thereby preventing sagging and increasing the oxygen adsorption rate.

According to another embodiment of the simplified nitrogen generator, two nitrogen tanks 150 and a storage tube configured to surround the outer circumferential surface of the compressor 130 are additionally provided on the extension line of the discharge tube 170, A plurality of supports 190 may be installed on the inner circumferential surface of the compressor 171 to support the compressor 130 and the nitrogen tank 150.

The storage tube 171 is configured to surround the outer circumferential surface of the nitrogen tank 150 and may be used for storing pure nitrogen extracted from the adsorption tower 160 or may be configured to maintain a constant pressure, Quot; function. &Lt; / RTI >

In addition, the storage tube 171 of the present invention has a discharge port 173 for using nitrogen stored on one surface thereof and a wheel 101 (not shown) for easily moving the nitrogen generator 100 to the lower end of the storage tube 171. [ And a hook 103 for fixing the position of the nitrogen generator 100, so that the user is not inconvenient to use nitrogen.

The hook 103 is a device for fixing the nitrogen generator 100 so as not to be moved by the wheel 101 and is configured to be folded in a predetermined direction so that the nitrogen generator 100 can smoothly move through the wheel 101 .

The storage tube 171 functions not only to store the pure nitrogen extracted from the nitrogen tank 150 and the adsorption tower 160 but also to cool the heat or cooling energy generated when nitrogen is extracted from the oxygen.

Although the present invention has been described in connection with the preferred embodiments thereof with reference to the accompanying drawings, it is to be understood that the present invention is not limited thereto, It is to be understood that various modifications and changes may be made without departing from the scope of the appended claims.

100: nitrogen generator 101: wheel
103: hook 120: feed pipe
130: compressor 140: inlet pipe
150: nitrogen tank 151: inlet
153: exhaust port 160: adsorption tower
170: discharge pipe 171: storage pipe
180: valve 190: support

Claims

A compressor integrally configured to compress air in the air;
An inlet pipe connected to the compressor and configured to supply compressed air to the nitrogen tank, the inlet pipe being provided with a valve so that the user can open and close;
An inlet configured to extract nitrogen from the air supplied from the compressor and configured to be connected to the inflow pipe at a quarter of a point on the lower surface of the inflow pipe; A nitrogen tank including an outlet configured to be connected; And
A discharge pipe provided in the nitrogen tank and supplied with high purity nitrogen adsorbed in the nitrogen tank to an external device and provided with a valve to allow the user to open and close;
&Lt; / RTI >

The method according to claim 1,
In the nitrogen tank,
And an adsorption tower disposed on an outer circumferential surface and capable of extracting purified nitrogen by separating compressed air supplied from the compressor into oxygen and various elements.

The method according to claim 1,
Wherein the compressor and the nitrogen tank are connected to each other through a high-
A simplified nitrogen generator comprising configuring the geometry of the geometry as a declination.

The method according to claim 1,
The compressor and the nitrogen tank,
And a storage tube connected to the discharge pipe and storing nitrogen is additionally formed on the outer circumferential surface.