Waste nitrogen and waste pressure recovery device for nitrogen making machine

Abstract

The utility model relates to the field of nitrogen making machines, and discloses a waste nitrogen and waste pressure recovery device for a nitrogen making machine, which comprises an adsorption tank, an inert ceramic ball layer and a carbon molecular sieve layer are respectively arranged in an inner cavity of the adsorption tank from bottom to top, the inert ceramic ball layer is arranged in a gradient magnetic field, and an inflation groove is fixedly arranged in the center of the bottom end of the inner cavity of the adsorption tank. An air inlet pipe communicating with the interior of the inflation groove is fixedly installed at the bottom end of the adsorption tank, a dispersion assembly is fixedly installed at the position, located on one side of the inflation groove, of an inner cavity of the adsorption tank through a plurality of connecting rods, the center position of the bottom end of the dispersion assembly communicates with one end of an air conveying pipe, and the other end of the air conveying pipe communicates with the interior of the inflation groove; according to the utility model, the gas can be divided into a plurality of streams to be dispersed everywhere in the adsorption tank, so that the inert ceramic ball layers everywhere in the adsorption tank can work simultaneously, and oxygen and nitrogen are quickly separated, thereby being beneficial to improving the nitrogen generation efficiency.

Description

Technical Field

[0001] The utility model relates to the field of nitrogen generators, in particular to a waste nitrogen and waste pressure recovery device for nitrogen generators. Background Art

[0002] Carbon molecular sieve nitrogen generator uses air as raw material and carbon molecular sieve as adsorbent. It uses the principle of pressure swing adsorption and the selective adsorption of oxygen and nitrogen by carbon molecular sieve to separate nitrogen and oxygen. It is commonly known as PSA nitrogen production. Nitrogen is widely used as protective gas in metal heat treatment process, gas for chemical industry production and nitrogen filling and purification of various storage tanks and pipelines, gas for production of rubber and plastic products, oxygen removal and fresh-keeping packaging in food industry, purification and covering gas in beverage industry, nitrogen filling and oxygen removal of packaging and containers in pharmaceutical industry, electronic components in electronics industry, fire prevention and extinguishing in petroleum and coal mining industry and protective gas in semiconductor production process.

[0003] For example, the utility model with the publication (announcement) number: CN220386187U belongs to the technical field of nitrogen production, and is particularly a waste nitrogen and waste pressure recovery device for a nitrogen generator, including an adsorption tower A and an adsorption tower B. The front side of the adsorption tower A is provided with an interface No. 1 and an interface No. 2, the front side of the adsorption tower B is provided with an interface No. 3 and an interface No. 4, the interface No. 1 is fixedly installed with a No. 14 pipeline, a No. 16 pipeline is fixedly installed on the upper end face of the No. 14 pipeline, and a No. 1 pipeline is fixedly installed on the upper side of the No. 16 pipeline.

[0004] The device of the utility model sends all the gases into the adsorption tank at once, but does not disperse the gases, so that the structures of the inert ceramic ball layer in the adsorption tank cannot be fully utilized (but part of it is in a utilized state and the other part is not utilized), thereby reducing the nitrogen production efficiency. Utility Model Content

[0005] The utility model aims to provide a waste nitrogen and waste pressure recovery device for a nitrogen generator to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waste nitrogen and waste pressure recovery device for a nitrogen generator, comprising an adsorption tank, in which an inert ceramic ball layer and a carbon molecular sieve layer are respectively installed from bottom to top in the inner cavity of the adsorption tank, and the inert ceramic ball layer is arranged in a gradient magnetic field, an air charging groove is fixedly installed at the center position of the bottom end of the inner cavity of the adsorption tank, and an air inlet pipe connected to the inside of the air charging groove is fixedly installed at the bottom end of the adsorption tank, a dispersion component is fixedly installed on one side of the inner cavity of the adsorption tank through a plurality of connecting rods, and the center position of the bottom end of the dispersion component is connected to one end of the air supply pipe, and the other end of the air supply pipe is connected to the inside of the air charging groove.

[0007] Preferably, the dispersion component comprises a first dispersion flat tank whose bottom end is fixedly connected to the top end of the gas pipe, and the first dispersion flat tank is a round pancake-shaped structure.

[0008] Preferably, a second dispersion pipe, a third dispersion pipe and a fourth dispersion pipe are equidistantly distributed on the outside of the first dispersion flat tank and are concentrically arranged along the center of the first dispersion flat tank, and a plurality of air guide pipes are cross-distributed in the horizontal direction.

[0009] Preferably, each of the air guide pipes connects the first dispersion flat tank, the second dispersion pipe, the third dispersion pipe and the fourth dispersion pipe along the axial extension direction thereof, and the outer side of the fourth dispersion pipe is fixedly connected to one end of the inner wall of the adsorption tank cavity through a plurality of connecting rods.

[0010] Preferably, the tops of the first dispersion flat tank, the second dispersion tube, the third dispersion tube and the fourth dispersion tube are respectively provided with a plurality of dispersion holes connected with the inside of the first dispersion flat tank, the second dispersion tube, the third dispersion tube and the fourth dispersion tube.

[0011] Preferably, the plurality of dispersion holes are evenly distributed in a ring shape along the top ends of the first dispersion flat tank, the second dispersion tube, the third dispersion tube and the fourth dispersion tube, and a nitrogen exhaust pipe communicating with the inner cavity of the adsorption tank is fixedly provided on the top end.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model discloses a novel gas that gradually disperses after entering the inflation tank installed in the adsorption tank through one end of the air inlet pipe, and is transmitted to the first dispersion flat tank of the dispersion component through the air delivery pipe at the top of the inflation tank, and then is transmitted to the second dispersion pipe, the third dispersion pipe and the fourth dispersion pipe through a plurality of cross-arranged air guide pipes, and is dispersed to the inner cavity of the adsorption tank through a plurality of dispersion holes evenly opened at the tops of the first dispersion flat tank, the second dispersion pipe, the third dispersion pipe and the fourth dispersion pipe. Under the action of the inert porcelain ball layer and the gradient magnetic field, the oxygen and the nitrogen produce a speed difference and are separated under the action of the gradient magnetic field, and the oxygen and the nitrogen are separated and floated, and the oxygen is adsorbed by the carbon molecular sieve layer and occupies the adsorption sites in the carbon molecular sieve, so that the carbon molecular sieve reaches adsorption equilibrium, and the nitrogen that is not adsorbed continues to float and is discharged from the nitrogen exhaust pipe, so that the separation of nitrogen and oxygen is realized, and the gas is divided into a plurality of strands and dispersed in various places in the adsorption tank, so that the inert porcelain ball layers in various places in the adsorption tank can work at the same time and quickly separate the oxygen and nitrogen, which is beneficial to improve the nitrogen production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a top view schematic diagram of the dispersed component structure of the utility model.

[0016] In the figure: 1. adsorption tank; 2. inert porcelain ball layer; 3. carbon molecular sieve layer; 4. inflation tank; 5. air inlet pipe; 6. dispersion assembly; 7. connecting rod; 8. gas pipeline; 9. nitrogen exhaust pipe; 61. first dispersion flat tank; 62. second dispersion pipe; 63. third dispersion pipe; 64. fourth dispersion pipe; 65. air guide pipe; 66. dispersion hole. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Embodiment 1

[0019] See also Figure 1-Figure 2 A waste nitrogen and waste pressure recovery device for a nitrogen generator shown in the figure includes an adsorption tank 1, in which an inert ceramic ball layer 2 and a carbon molecular sieve layer 3 are installed from bottom to top, and the inert ceramic ball layer 2 is arranged in a gradient magnetic field, an air charging groove 4 is fixedly installed at the center of the bottom end of the inner cavity of the adsorption tank 1, and an air inlet pipe 5 connected with the inside of the air charging groove 4 is fixedly installed at the bottom end of the adsorption tank 1, a dispersion component 6 is fixedly installed at one side of the inner cavity of the adsorption tank 1 through a plurality of connecting rods 7, and the bottom center of the dispersion component 6 is connected with one end of a gas supply pipe 8, and the other end of the gas supply pipe 8 is connected with the inside of the air charging groove 4.

[0020] In this embodiment, the dispersion component 6 includes a first dispersion flat tank 61 whose bottom end is fixedly connected to the top of the gas delivery pipe 8, and the first dispersion flat tank 61 is a pancake-shaped structure. The outside of the first dispersion flat tank 61 is equidistantly distributed with a second dispersion pipe 62, a third dispersion pipe 63 and a fourth dispersion pipe 64 which are concentrically arranged along the center position of the first dispersion flat tank 61, and a plurality of air guide pipes 65 are cross-distributed in the horizontal direction. Each air guide pipe 65 connects the first dispersion flat tank 61, the second dispersion pipe 62, the third dispersion pipe 63 and the fourth dispersion pipe 64 along the extension direction of its axis, and the fourth dispersion pipe The outer side of 64 is fixedly connected to one end of the inner wall of the inner cavity of the adsorption tank 1 through a plurality of connecting rods 7, and the tops of the first dispersion flat tank 61, the second dispersion tube 62, the third dispersion tube 63 and the fourth dispersion tube 64 are respectively provided with a plurality of dispersion holes 66 connected with the inside of the first dispersion flat tank 61, the second dispersion tube 62, the third dispersion tube 63 and the fourth dispersion tube 64. The plurality of dispersion holes 66 are respectively evenly distributed in a ring shape along the tops of the first dispersion flat tank 61, the second dispersion tube 62, the third dispersion tube 63 and the fourth dispersion tube 64, and the top of the adsorption tank 1 is fixedly provided with a nitrogen exhaust pipe 9 connected with its inner cavity.

[0021] Furthermore, the gas gradually disperses after entering the gas filling tank 4 installed in the adsorption tank 1 from one end of the air inlet pipe 5, and is transmitted to the first dispersion flat tank 61 of the dispersion component 6 through the air delivery pipe 8 at the top of the gas filling tank 4, and then the gas is transmitted to the second dispersion tube 62, the third dispersion tube 63 and the fourth dispersion tube 64 through the cross-arranged multiple air guide tubes 65, and is dispersed to the inner cavity of the adsorption tank 1 through the multiple dispersion holes 66 uniformly opened at the top of the first dispersion flat tank 61, the second dispersion tube 62, the third dispersion tube 63 and the fourth dispersion tube 64, and the gas is dispersed between the inert porcelain ball layer 2 and Under the action of the gradient magnetic field, oxygen and nitrogen produce a speed difference and separate under the action of the gradient magnetic field. Oxygen and nitrogen separate and float up. Oxygen will be adsorbed by the carbon molecular sieve layer 3 and occupy the adsorption sites in the carbon molecular sieve, so that the carbon molecular sieve reaches adsorption equilibrium. The unadsorbed nitrogen continues to float up and is discharged from the nitrogen exhaust pipe 9, thereby realizing the separation of nitrogen and oxygen, and dividing the gas into several streams and dispersing them in various places in the adsorption tank 1, so that the inert porcelain ball layers 2 in various places in the adsorption tank 1 can work at the same time and quickly separate oxygen and nitrogen, which is beneficial to improving the nitrogen production efficiency.

[0022] The working principle of the utility model is as follows: the gas enters the gas charging tank 4 installed in the adsorption tank 1 from one end of the air inlet pipe 5, and then gradually disperses, and is transmitted to the first dispersion flat tank 61 of the dispersion component 6 through the air delivery pipe 8 at the top of the gas charging tank 4, and then the gas is transmitted to the second dispersion tube 62, the third dispersion tube 63 and the fourth dispersion tube 64 through the cross-arranged multiple air guide tubes 65, and is dispersed to the inner cavity of the adsorption tank 1 through the multiple dispersion holes 66 evenly opened at the top of the first dispersion flat tank 61, the second dispersion tube 62, the third dispersion tube 63 and the fourth dispersion tube 64, and the inert porcelain ball Under the action of layer 2 and the gradient magnetic field, oxygen and nitrogen are separated due to the speed difference under the action of the gradient magnetic field. Oxygen and nitrogen are separated and float up. Oxygen will be adsorbed by the carbon molecular sieve layer 3, occupying the adsorption sites in the carbon molecular sieve, so that the carbon molecular sieve reaches adsorption equilibrium. The unadsorbed nitrogen continues to float up and is discharged from the nitrogen exhaust pipe 9, realizing the separation of nitrogen and oxygen, and dividing the gas into several streams and dispersing them in various places in the adsorption tank 1, so that the inert porcelain ball layers 2 in various places in the adsorption tank 1 can work at the same time and quickly separate oxygen and nitrogen, which is beneficial to improve the nitrogen production efficiency.

[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waste nitrogen and waste pressure recovery device for a nitrogen generator, comprising an adsorption tank (1), characterized in that: An inert ceramic ball layer (2) and a carbon molecular sieve layer (3) are installed in the inner cavity of the adsorption tank (1) from bottom to top, and the inert ceramic ball layer (2) is arranged in a gradient magnetic field. An air filling groove (4) is fixedly installed at the center of the bottom end of the inner cavity of the adsorption tank (1), and an air inlet pipe (5) connected to the inside of the air filling groove (4) is fixedly installed at the bottom end of the adsorption tank (1). A dispersion component (6) is fixedly installed on one side of the inner cavity of the adsorption tank (1) through a plurality of connecting rods (7), and the center of the bottom end of the dispersion component (6) is connected to one end of an air supply pipe (8), and the other end of the air supply pipe (8) is connected to the inside of the air filling groove (4).

2. A waste nitrogen and waste pressure recovery device for a nitrogen generator according to claim 1, characterized in that: The dispersion component (6) comprises a first dispersion flat tank (61) whose bottom end is fixedly connected to the top end of the gas delivery pipe (8), and the first dispersion flat tank (61) is a round pancake-shaped structure.

3. A waste nitrogen and waste pressure recovery device for a nitrogen generator according to claim 2, characterized in that: A second dispersion pipe (62), a third dispersion pipe (63) and a fourth dispersion pipe (64) are equidistantly distributed on the outside of the first dispersion flat tank (61) and are concentrically arranged along the center of the first dispersion flat tank (61), and a plurality of air guide pipes (65) are cross-distributed in the horizontal direction.

4. A waste nitrogen and waste pressure recovery device for a nitrogen generator according to claim 3, characterized in that: Each of the air guide pipes (65) connects the first dispersion tank (61), the second dispersion pipe (62), the third dispersion pipe (63) and the fourth dispersion pipe (64) along the direction of extension of its axis, and the outer side of the fourth dispersion pipe (64) is fixedly connected to one end of the inner wall of the inner cavity of the adsorption tank (1) via a plurality of connecting rods (7).

5. A waste nitrogen and waste pressure recovery device for a nitrogen generator according to claim 4, characterized in that: The top ends of the first dispersion flat tank (61), the second dispersion tube (62), the third dispersion tube (63) and the fourth dispersion tube (64) are respectively provided with a plurality of dispersion holes (66) which are in communication with the interior of the first dispersion flat tank (61), the second dispersion tube (62), the third dispersion tube (63) and the fourth dispersion tube (64).

6. A waste nitrogen and waste pressure recovery device for a nitrogen generator according to claim 5, characterized in that: The plurality of dispersion holes (66) are evenly distributed in a ring shape along the top ends of the first dispersion flat tank (61), the second dispersion tube (62), the third dispersion tube (63) and the fourth dispersion tube (64). A nitrogen exhaust pipe (9) communicating with the inner cavity of the adsorption tank (1) is fixedly provided at the top end.

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