Miniature modular pressure swing adsorption nitrogen-making adsorption tower

Abstract

The utility model discloses a miniature modular pressure swing adsorption nitrogen-making adsorption tower, which relates to the field of laboratory nitrogen-making equipment, and comprises two bases, the tops of the two bases are respectively connected with two first tower bodies and a second tower body, the bottoms of the two first tower bodies are respectively connected with a first air inlet pipe, and the bottoms of the two second tower bodies are respectively connected with a second air inlet pipe. The bottoms of the two second tower bodies are connected with second air inlet pipes, the tops of the two first tower bodies are connected with first air outlet pipes, the top of one second tower body is connected with an electromagnetic valve I, the top of one second tower body is connected with a second air outlet pipe, and the top of the other second tower body is connected with a third air inlet pipe. According to the utility model, the two bases are arranged, the two first tower bodies and the two second tower bodies are arranged on the two bases, only one electromagnetic valve I is arranged on the second tower bodies, and one electromagnetic valve I is used for controlling the first tower bodies and the second tower bodies to generate nitrogen, so that the use number of the electromagnetic valves can be effectively reduced, the cost is saved, and the control is convenient.

Description

Technical Field

[0001] The utility model relates to the field of laboratory nitrogen production equipment, in particular to a micro-module pressure swing adsorption nitrogen production adsorption tower. Background Art

[0002] At present, the modular nitrogen generators on the market are relatively large in size and are mainly used in the industrial market. In order to facilitate the use of nitrogen generators in laboratories, the size of nitrogen generators is often reduced. In order to continuously produce nitrogen, some laboratories' nitrogen generators use two nitrogen adsorption towers, and both nitrogen adsorption towers are equipped with solenoid valves. The two solenoid valves are used to intermittently control the use of the two nitrogen adsorption towers. The use of two solenoid valves not only increases the cost of use, but also increases the difficulty of control.

[0003] Therefore, it is necessary to invent a micro-module pressure swing adsorption nitrogen adsorption tower to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a micro-module pressure swing adsorption nitrogen production adsorption tower to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a micro-module pressure swing adsorption nitrogen adsorption tower, comprising two bases, the tops of the two bases are respectively connected to two first tower bodies and second tower bodies, the bottoms of the two first tower bodies are connected to a first air inlet pipe, the bottoms of the two second tower bodies are connected to a second air inlet pipe, the tops of the two first tower bodies are connected to a first air outlet pipe, the top of one of the second tower bodies is connected to a solenoid valve 1, the top of one of the second tower bodies is connected to a second air outlet pipe, the top of the other second tower body is connected to a third air inlet pipe, and the top of the other second tower body is connected to a third air outlet pipe.

[0006] Preferably, the left and right sides of the two bases are connected with mounting plates, and a plurality of mounting holes are formed on the surface of the mounting plates.

[0007] Preferably, a first cover plate is commonly provided on the tops of the two first tower bodies, and a second cover plate is commonly provided on the tops of the two second tower bodies, and the first cover plate and the second cover plate are both connected to the first tower body and the second tower body by bolts.

[0008] Preferably, output ends of the first air inlet pipe, the second air inlet pipe, the third air inlet pipe, the first air outlet pipe, the second air outlet pipe and the third air outlet pipe are all connected to a one-way valve.

[0009] Technical effects and advantages of the utility model:

[0010] By setting two bases, and setting two first tower bodies and two second tower bodies on the two bases, and setting only one solenoid valve 1 on the second tower body, and using one solenoid valve 1 to control the first tower body and the second tower body to produce nitrogen, the number of solenoid valves used can be effectively reduced, the cost can be saved, and the control is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 For this utility model Figure 1 Schematic diagram of the front view structure.

[0013] In the figure: 1. base; 2. first tower body; 3. second tower body; 4. first air inlet pipe; 5. second air inlet pipe; 6. first air outlet pipe; 7. solenoid valve 1; 8. second air outlet pipe; 9. third air inlet pipe; 10. third air outlet pipe; 11. mounting plate; 12. first cover plate; 13. second cover plate. DETAILED DESCRIPTION

[0014] 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.

[0015] The utility model provides Figure 1-2A micro-module pressure swing adsorption nitrogen production adsorption tower shown in the figure comprises two bases 1, the tops of the two bases 1 are respectively connected to two first tower bodies 2 and second tower bodies 3, the first tower body 2 and the second tower body 3 are both provided with carbon molecular sieves as adsorbents, oxygen is preferentially adsorbed under high pressure, and nitrogen is enriched due to its lower diffusion rate, thereby separating nitrogen. Carbon molecular sieves are prior art and belong to the conventional technical means of personnel in this field, so they are not described in detail. The bottoms of the two first tower bodies 2 are both connected to the first air inlet pipe 4, the bottoms of the two second tower bodies 3 are both connected to the second air inlet pipe 5, and the tops of the two first tower bodies 2 are both connected to the first air outlet pipe 6. The top of one of the second tower bodies 3 is connected to an electromagnetic valve 1 7, the top of one of the second tower bodies 3 is connected to a second air outlet pipe 8, the top of another second tower body 3 is connected to a third air inlet pipe 9, and the top of another second tower body 3 is connected to a third air outlet pipe 10. The first tower body 2 and the second tower body 3 are supplied with air through an air compressor, and an electromagnetic valve 2 and an electromagnetic valve 3 are arranged on the air compressor. By connecting the two first air inlet pipes 4 to the external electromagnetic valve 2, and connecting the two second air inlet pipes 5 to the external electromagnetic valve 3, the two first air outlet pipes 6 are connected to the first air guide pipe, and the two first air guide pipes are connected by using a three-way pipe, and then the three-way pipe is connected. The first tower body 2 is connected to the input end of the electromagnetic valve 7, the second air outlet pipe 8 and the third air inlet pipe 9 are connected through the second air guide pipe, and the nitrogen transmission pipe is connected to the third air outlet pipe 10. When two first tower bodies 2 are used to make nitrogen, the electromagnetic valve 17 and the electromagnetic valve 2 are opened, and the electromagnetic valve 3 is closed. The compressed air is transported to the two first air inlet pipes 4, and then enters the first tower body 2 through the two first air inlet pipes 4. The nitrogen is separated by the carbon molecular sieve in the first tower body 2. The separated nitrogen enters the two first air outlet pipes 6, and enters the electromagnetic valve 7 through the first air outlet pipe 6, the first air guide pipe and the three-way pipe, and enters one of the second tower bodies 3, and then The nitrogen is discharged through the second air outlet pipe 8, enters the third air inlet pipe 9 through the second air guide pipe, and then enters another second tower body 3. Finally, the nitrogen is output through the third air outlet pipe 10, and the nitrogen is collected by the nitrogen transmission pipe. If the second tower body 3 needs to be used for nitrogen production, the solenoid valve 1 7 and the solenoid valve 2 are closed, and the solenoid valve 3 is opened to directly transport the compressed air to the second air inlet pipe 5, and then enter the second tower body 3 through the second air inlet pipe 5 for nitrogen production. Finally, the nitrogen is output through the third air outlet pipe 10, and the nitrogen is collected by the nitrogen transmission pipe. This can effectively reduce the number of solenoid valves used, save costs, and facilitate control.

[0016] The left and right sides of the two bases 1 are connected with mounting plates 11 , and a plurality of mounting holes are formed on the surface of the mounting plates 11 .

[0017] A first cover plate 12 is commonly provided on the top of the two first tower bodies 2, and a second cover plate 13 is commonly provided on the top of the two second tower bodies 3. The first cover plate 12 and the second cover plate 13 are both connected to the first tower body 2 and the second tower body 3 by bolts. The two first tower bodies 2 are connected by a first cover plate 12, so the two first tower bodies 2 are interconnected. The two second tower bodies 3 are connected by a second cover plate 13. The two second tower bodies 3 are interconnected, and through the provision of the first cover plate 12 and the second cover plate 13, the carbon molecular sieves in the first tower body 2 and the second tower body 3 can be conveniently replaced.

[0018] The output ends of the first air inlet pipe 4, the second air inlet pipe 5, the third air inlet pipe 9, the first air outlet pipe 6, the second air outlet pipe 8 and the third air outlet pipe 10 are all connected with a one-way valve, which can effectively prevent the gas in the first air inlet pipe 4, the second air inlet pipe 5, the third air inlet pipe 9, the first air outlet pipe 6, the second air outlet pipe 8 and the third air outlet pipe 10 from flowing back.

[0019] Working principle of this utility model:

[0020] The first tower body 2 and the second tower body 3 are jointly supplied with air through an air compressor, and a solenoid valve 2 and a solenoid valve 3 are arranged on the air compressor. By connecting the two first air inlet pipes 4 to the external solenoid valve 2, and connecting the two second air inlet pipes 5 to the external solenoid valve 3, the two first air outlet pipes 6 are connected with the first air guide pipe, and the two first air guide pipes are connected by using a three-way pipe, and then the three-way pipe is connected to the input end of the solenoid valve 1 7, the second air outlet pipe 8 and the third air inlet pipe 9 are connected through the second air guide pipe, and the nitrogen transmission pipe is connected to the third air outlet pipe 10. When the two first tower bodies 2 are used to make nitrogen, the solenoid valve 1 7 and the solenoid valve 2 are opened, and the solenoid valve 3 is closed, and the compressed air is transported to the two first air inlet pipes 4, and then enters the first tower body 2 through the two first air inlet pipes 4. The carbon molecular sieve in the tower body 2 separates nitrogen, and the separated nitrogen enters the two first air outlet pipes 6, and enters the solenoid valve 1 7 through the first air outlet pipe 6, the first air guide pipe and the three-way pipe, and enters one of the second tower bodies 3, and then is discharged through the second air outlet pipe 8, and enters the third air inlet pipe 9 through the second air guide pipe, and then enters the other second tower body 3, and finally outputs the nitrogen through the third air outlet pipe 10, and the nitrogen is collected by the nitrogen transmission pipe. If it is necessary to use the second tower body 3 for nitrogen production, close the solenoid valve 1 7 and the solenoid valve 2, open the solenoid valve 3, and directly transport the compressed air to the second air inlet pipe 5, and then enter the second tower body 3 through the second air inlet pipe 5 for nitrogen production, and finally outputs the nitrogen through the third air outlet pipe 10, and the nitrogen is collected by the nitrogen transmission pipe.

[0021] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A micro-module pressure swing adsorption nitrogen production adsorption tower, comprising two bases, characterized in that: The tops of the two bases are respectively connected to two first tower bodies and second tower bodies, the bottoms of the two first tower bodies are connected to the first air inlet pipe, the bottoms of the two second tower bodies are connected to the second air inlet pipe, the tops of the two first tower bodies are connected to the first air outlet pipe, the top of one of the second tower bodies is connected to the solenoid valve 1, the top of one of the second tower bodies is connected to the second air outlet pipe, the top of the other second tower body is connected to the third air inlet pipe, and the top of the other second tower body is connected to the third air outlet pipe.

2. A micro-module pressure swing adsorption nitrogen production adsorption tower according to claim 1, characterized in that: The left and right sides of the two bases are connected with mounting plates, and the surfaces of the mounting plates are provided with a plurality of mounting holes.

3. The micro-module pressure swing adsorption nitrogen production adsorption tower according to claim 1, characterized in that: A first cover plate is commonly provided on the tops of the two first tower bodies, and a second cover plate is commonly provided on the tops of the two second tower bodies. The first cover plate and the second cover plate are both connected to the first tower body and the second tower body by bolts.

4. The micro-module pressure swing adsorption nitrogen production adsorption tower according to claim 1, characterized in that: The output ends of the first air inlet pipe, the second air inlet pipe, the third air inlet pipe, the first air outlet pipe, the second air outlet pipe and the third air outlet pipe are all connected with a one-way valve.

Images