Small built-in nitrogen making machine structure

Abstract

The utility model relates to the technical field of nitrogen making machines, in particular to a small built-in nitrogen making machine structure which is simple in structure, small in equipment size, convenient to install and capable of being conveniently placed in corollary equipment needing oxygen and nitrogen supply. A small built-in nitrogen making machine structure comprises a shell, a protective cover rotationally mounted on the shell, and a PLC (programmable logic controller), two five-way middle-sealing electromagnetic valves, two three-way electromagnetic valves, two two-way electromagnetic valves, an aluminum alloy adsorption cylinder and an aluminum alloy gas storage tank which are arranged in the shell, the PLC and the two five-way middle-sealing electromagnetic valves are sequentially installed at the top in the shell, the aluminum alloy gas storage tank is installed in the middle in the shell, and the two two-way electromagnetic valves are installed on the upper middle portion in the shell and located on the left side and the right side of the aluminum alloy gas storage tank respectively. The aluminum alloy adsorption cylinders are installed at the left end and the right end in the shell correspondingly, and the two three-way electromagnetic valves are both installed in the middle in the shell.

Description

Technical Field

[0001] The utility model relates to the technical field of nitrogen generators, in particular to a small built-in nitrogen generator structure. Background Art

[0002] In the current industrial and medical fields, nitrogen generators are key equipment for obtaining high-purity nitrogen. Their application scope is expanding, covering many aspects, from the protective atmosphere of metal processing, the preservation of food packaging, to the oxygen-nitrogen mixed gas supply system in the medical field. However, despite the continuous advancement of technology, the existing nitrogen generators on the market generally face a significant design challenge, namely their large size and space occupation.

[0003] Traditional nitrogen generators often integrate complex structures such as compressors, air purification components, molecular sieve adsorption towers, and control systems. These components together lead to a large overall size of the equipment, which not only requires additional space planning during installation, but also limits its application in space-constrained environments, such as integration into certain precision equipment or mobile medical service facilities. Especially for those supporting equipment that require on-site instant nitrogen supply and compact space layout, the size of existing nitrogen generators has become an insurmountable obstacle. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a small built-in nitrogen generator structure, which has a simple structure, a small device size, and is easy to install, and can be conveniently placed inside the supporting equipment for supplying oxygen and nitrogen.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a small built-in nitrogen generator structure, comprising a shell, a protective cover rotatably mounted on the shell, a PLC controller arranged inside the shell, two five-way center-sealed solenoid valves, two three-way solenoid valves, two two-way solenoid valves, an aluminum alloy adsorption cylinder and an aluminum alloy gas storage tank, the PLC controller and the two five-way center-sealed solenoid valves are sequentially mounted on the top of the shell, the aluminum alloy gas storage tank is mounted in the middle of the shell, the two two-way solenoid valves are both mounted in the upper middle part of the shell, and the two two-way solenoid valves are respectively located on the left and right sides of the aluminum alloy gas storage tank, the aluminum alloy adsorption cylinder is respectively mounted on the left and right ends of the shell, the two three-way solenoid valves are both mounted in the middle of the shell, and the two three-way solenoid valves are respectively located on the upper and lower sides of the aluminum alloy gas storage tank, and the three-way solenoid valve located above is located below the two five-way center-sealed solenoid valves.

[0008] Furthermore, the utility model is improved in that the aluminum alloy gas storage tank is installed on a gas storage tank bracket, and the gas storage tank bracket is installed on the inner wall of the shell.

[0009] Furthermore, the utility model is improved in that the PLC controller, two five-way center-sealed solenoid valves, two three-way solenoid valves, two two-way solenoid valves, the aluminum alloy adsorption cylinder and the gas tank bracket are all fixed inside the shell by screws.

[0010] Furthermore, the utility model is improved in that air inlet and outlet holes are arranged on the side of the shell.

[0011] Furthermore, the utility model is improved in that a handle is provided on the side of the shell.

[0012] Furthermore, the utility model is improved in that a wire pulling hole is provided on the side of the shell.

[0013] Furthermore, the utility model is improved in that a quick-plug terminal is provided on the side of the shell.

[0014] Furthermore, the utility model is improved in that heat dissipation holes are provided at the front and rear ends of the shell.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a small built-in nitrogen generator structure, which has the following beneficial effects: when in use, the PLC controller is used to control the operation of all solenoid valves, the two-position five-way center-sealed solenoid valve is used to control the switching process of the aluminum alloy adsorption cylinder, the two-position three-way solenoid valve is used for the pressure equalization process, the two-position two-way solenoid valve is used for the reflux process, there are two aluminum alloy adsorption cylinders for adsorbing gas molecular sieves, and the aluminum alloy gas storage tank is used for the gas buffering process. Through the above arrangement, the volume of the nitrogen generator can be greatly reduced and the installation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a side view of the utility model;

[0019] Figure 3 It is a side view of the utility model;

[0020] Figure 4 yes Figure 1 Stereoscopic image of

[0021] Markings in the attached figure: 1. Protective cover; 2. Outer shell; 3. PLC controller; 4. Five-way center-sealed solenoid valve; 5. Three-way solenoid valve; 6. Two-way solenoid valve; 7. Aluminum alloy adsorption cylinder; 8. Aluminum alloy gas storage tank; 9. Gas storage tank bracket; 10. Air inlet and outlet holes; 11. Handle; 12. Wire pulling hole; 13. Quick-plug terminal block; 14. Heat dissipation hole. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-Figure 4 The utility model is a small built-in nitrogen generator structure, including a shell 2, a protective cover 1 rotatably mounted on the shell 2, and a PLC controller arranged inside the shell 2, 3 two five-way center-sealed solenoid valves 4, two three-way solenoid valves 5, two two-way solenoid valves 6, an aluminum alloy adsorption cylinder 7 and an aluminum alloy gas storage tank 8, the PLC controller and the two five-way center-sealed solenoid valves 4 are sequentially mounted on the top of the shell 2, the aluminum alloy gas storage tank 8 is mounted in the middle of the shell 2, the two two-way solenoid valves 6 are both mounted in the middle and upper part of the shell 2, and the two two-way solenoid valves 6 are respectively located on the left and right sides of the aluminum alloy gas storage tank 8, the aluminum alloy adsorption cylinder 7 is respectively mounted on the left and right ends of the shell 2, the two three-way solenoid valves 5 are both mounted in the middle of the shell 2, and the two three-way solenoid valves 5 are respectively located on the upper and lower sides of the aluminum alloy gas storage tank 8, and the three-way solenoid valve 5 located at the top is located below the two five-way center-sealed solenoid valves 4;

[0024] In this embodiment, when in use, the PLC controller is used to control the operation of all solenoid valves, the two-position five-way center-sealed solenoid valve 4 is used to control the switching process of the aluminum alloy adsorption cylinder 7, the two-position three-way solenoid valve 5 is used for the pressure equalization process, and the two-position two-way solenoid valve 6 is used for the reflux process. There are two aluminum alloy adsorption cylinders 7 for adsorbing gas molecular sieves, and the aluminum alloy gas storage tank 8 is used for the gas buffering process. Through the above arrangement, the volume of the nitrogen generator can be greatly reduced and the installation is convenient.

[0025] Furthermore, the utility model has the following improvements: the aluminum alloy gas tank 8 is mounted on a gas tank bracket 9, and the gas tank bracket 9 is mounted on the inner wall of the outer shell 2. By fixing the aluminum alloy gas tank 8 on the bracket, the risk of vibration and displacement can be effectively reduced, which helps to improve the stability of the entire system and prevent the gas tank from being damaged due to accidental collision or vibration, thereby improving the safety of the workplace.

[0026] Furthermore, the utility model has the following improvements: the PLC controller, two five-way center-sealed solenoid valves 4, two three-way solenoid valves 5, two two-way solenoid valves 6, an aluminum alloy adsorption cylinder 7 and a gas tank bracket 9 are all fixed to the inside of the housing 2 by screws. The screw-fixed structure facilitates quick disassembly and reassembly. When equipment maintenance, troubleshooting or future technical upgrades are required, technicians can easily access each component, thereby shortening maintenance time and improving work efficiency.

[0027] Furthermore, the utility model is improved in that the side of the housing 2 is provided with air inlet and outlet holes 10 for installing a trachea quick connector.

[0028] Furthermore, the utility model is improved in that a handle 11 is provided on the side of the shell 2, and the handle 11 is fixed to both sides of the shell 2 with screws for easy taking.

[0029] Furthermore, the utility model is improved in that a wire pulling hole 12 is provided on the side of the housing 2 , and the wire pulling hole 12 is used to lead the power line out of the housing 2 .

[0030] Furthermore, the utility model is improved in that a quick-plug terminal 13 is provided on the side of the housing 2, which can be quickly plugged in and out to expand the function.

[0031] Furthermore, the utility model is improved in that the front and rear ends of the housing 2 are both provided with heat dissipation holes 14, which are in the shape of long strips and are used for exhaust and heat dissipation, and can also be easily installed and taken.

[0032] 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 small built-in nitrogen generator structure, characterized in that: The invention comprises a housing (2), a protective cover (1) rotatably mounted on the housing (2), a PLC controller arranged inside the housing (2), (3) two five-way center-sealed electromagnetic valves (4), two three-way electromagnetic valves (5), two two-way electromagnetic valves (6), an aluminum alloy adsorption cylinder (7) and an aluminum alloy gas storage tank (8), wherein the PLC controller and the two five-way center-sealed electromagnetic valves (4) are sequentially mounted on the top of the housing (2), the aluminum alloy gas storage tank (8) is mounted in the middle of the housing (2), the two two-way electromagnetic valves (6) are both mounted in the middle and upper part of the housing (2), and the two two-way electromagnetic valves (6) are respectively located on the left and right sides of the aluminum alloy gas storage tank (8), the aluminum alloy adsorption cylinder (7) is respectively mounted on the left and right ends of the housing (2), the two three-way electromagnetic valves (5) are both mounted in the middle of the housing (2), and the two three-way electromagnetic valves (5) are respectively located on the upper and lower sides of the aluminum alloy gas storage tank (8), and the three-way electromagnetic valve (5) located at the upper part is located below the two five-way center-sealed electromagnetic valves (4).

2. A small built-in nitrogen generator structure according to claim 1, characterized in that: The aluminum alloy gas storage tank (8) is mounted on a gas storage tank bracket (9), and the gas storage tank bracket (9) is mounted on the inner wall of the outer shell (2).

3. A small built-in nitrogen generator structure according to claim 2, characterized in that: The PLC controller, (3) two five-way center-sealed solenoid valves (4), two three-way solenoid valves (5), two two-way solenoid valves (6), an aluminum alloy adsorption cylinder (7) and a gas storage tank bracket (9) are all fixed inside the housing (2) by screws.

4. A small built-in nitrogen generator structure according to claim 3, characterized in that: The side of the housing (2) is provided with air inlet and outlet holes (10).

5. A small built-in nitrogen generator structure according to claim 4, characterized in that: A handle (11) is provided on the side of the housing (2).

6. A small built-in nitrogen generator structure according to claim 5, characterized in that: A wire pulling hole (12) is provided on the side of the housing (2).

7. A small built-in nitrogen generator structure according to claim 6, characterized in that: A quick-plug connection terminal (13) is arranged on the side of the housing (2).

8. A small built-in nitrogen generator structure according to claim 7, characterized in that: Heat dissipation holes (14) are provided at the front and rear ends of the housing (2).

Images