Air compressor integrated with nitrogen generator

By designing an air compressor with an integrated nitrogen generator, the problems of automatic gas source shutdown and purity control in existing technologies have been solved. This enables the switching of multiple gas sources and automatic venting, improving the reliability of the equipment and the control of gas purity.

CN224931809UActive Publication Date: 2026-11-03GUANGDONG GANEY PRECISION MACHINE CO LTD
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Patent Information

Application Number
CN202522421444.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-14
Publication Date
2026-11-03
Estimated Expiration
2035-11-14

AI Technical Summary

Technical Problem

Existing nitrogen generators and air compressor integrated units cannot automatically shut off the gas source when they fail to shut down, resulting in a decrease in the purity of pure nitrogen. Furthermore, they lack multiple gas interfaces and automatic venting functions, which affects the reliability of the equipment and the control of gas purity.

Method used

An air compressor with an integrated nitrogen generator was designed, which includes multiple gas source switching and automatic control systems, including solenoid valves, refrigerated dryers, separation filter components, three-way pipes, detectors, etc., to achieve automatic adjustment of gas purity and equipment protection.

Benefits of technology

It enables the availability of multiple gas sources, protects equipment from contamination, ensures that downstream equipment uses nitrogen gas with the required purity for operating conditions, and improves equipment reliability and gas purity control.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a kind of air compressors with nitrogen generator integration, including air compressor, the side of air compressor is connected with first gas holder, the side of first gas holder is connected with first filter, the side of first filter is connected with cold dryer, the side of cold dryer is connected with solenoid valve, the side of solenoid valve is provided with separation filter assembly, the side of separation filter assembly is connected with three-way pipe, the bottom of three-way pipe is connected with compressed air outlet pipe, the air compressor with nitrogen generator integration, with the availability of multiple gas sources, different laser machine equipment gas demand is suitable, compressed air can be used to use compressed air first, because the amount of compressed air generated by the same power is much more than the amount of nitrogen, low cost;With the gas source that has been not compressed after air treatment is automatically cut off, to prevent untreated gas into the equipment of rear end, protect equipment from pollution or damage, to protect the reliability of the equipment of rear end.
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Description

Technical Field

[0001] This utility model relates to the field of nitrogen generation and air compressor technology, and in particular to an air compressor with an integrated nitrogen generator. Background Technology

[0002] The existing nitrogen generator and air compressor are integrated units with relatively independent functions. When the refrigerated dryer malfunctions or is manually stopped, the air supply to the nitrogen generator is not shut off, causing a decrease in the purity of the pure nitrogen at the downstream end. After the compressed air passes through the post-processing equipment, there is no reserved port for using compressed air, so the machine only uses nitrogen gas and does not provide multiple gas interfaces. The nitrogen generator purity control valve is installed together with the nitrogen generator, and the venting can only vent the air in the system before the nitrogen outlet, but the nitrogen pipeline and storage tank at the downstream end cannot be automatically vented and purified. It needs to be gradually vented and purified by air using the terminal equipment, and there is no way to identify when the purity of the tank reaches the required level. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides an air compressor with an integrated nitrogen generator to solve the aforementioned problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: An air compressor with an integrated nitrogen generator includes an air compressor, a first air storage tank connected to one side of the air compressor, a first filter connected to one side of the first air storage tank, a refrigerated dryer connected to one side of the first filter, a solenoid valve connected to one side of the refrigerated dryer, a separation filter assembly installed on one side of the solenoid valve, a three-way pipe connected to one side of the separation filter assembly, a compressed air outlet pipe connected to the bottom of the three-way pipe, a first manual ball valve installed on the compressed air outlet pipe, a second manual ball valve connected to one end of the three-way pipe, a nitrogen generator connected to one side of the second manual ball valve, a second air storage tank connected to one side of the nitrogen generator, a three-way ball valve connected to one side of the second air storage tank, and a compressed nitrogen outlet pipe connected to one end of the three-way ball valve.

[0005] Preferably, the air compressor is equipped with a compression controller, the refrigerated dryer is equipped with a refrigerated dryer controller, and the nitrogen generator is equipped with a nitrogen generator controller.

[0006] Preferably, the bottom of the first gas storage tank is connected to a user pipe, and a first drain ball valve is installed on the user pipe.

[0007] Preferably, the separation and filtration assembly includes a water-air separator installed on one side of the solenoid valve, a second filter and a third filter connected sequentially on one side of the water-air separator, and a second drain ball valve connected to the bottom of the water-air separator, the second filter and the third filter, and a first automatic drain valve provided below the three second drain ball valves.

[0008] Preferably, a second automatic drain valve is provided at the bottom of the first filter, and a third drain ball valve is provided on the second automatic drain valve. The three first automatic drain valves, the second automatic drain valve and the refrigerated dryer are connected to the same bottom connecting pipe.

[0009] Preferably, a fourth filter is provided between the nitrogen generator and the second gas storage tank, a drain ball valve is provided on one side of the fourth filter, and a drain valve is provided on one side of the second gas storage tank.

[0010] Preferably, a detector is installed between the second gas storage tank and the three-way ball valve, a silencer is connected to one side of the three-way ball valve, and a first laser machine and a second laser machine are installed on one side of the compressed nitrogen outlet pipe. The first laser machine is a nitrogen or air laser machine, and the second laser machine is an air laser machine.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This air compressor with integrated nitrogen generator has multiple gas sources available, suitable for the gas needs of different laser equipment. Compressed air is given priority when available because the amount of compressed air generated by the same amount of electricity is far greater than the amount of nitrogen, resulting in lower costs. It automatically cuts off gas sources that have not undergone post-processing of compressed air to prevent untreated gas from entering downstream equipment, protecting the equipment from contamination or damage, thereby protecting the reliability of downstream equipment. The entire system monitors the purity of nitrogen, with the detection and adjustment points located at the very end of the system, automatically adjusting the purity of nitrogen throughout the system so that the terminal nitrogen-using equipment can quickly obtain nitrogen of the required purity for its operating conditions. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the all-in-one machine structure of this utility model; Figure 2 This is a schematic diagram of the overall external connection structure of the all-in-one machine of this utility model; Figure 3 This is a structural schematic diagram of some of the mechanisms of this utility model; Figure 4 This is a schematic diagram of a partial mechanism of the present invention.

[0013] In the diagram: 1. Air compressor; 2. Compression controller; 3. First air tank; 4. User connection pipe; 5. First drain ball valve; 6. First filter; 7. Refrigerated dryer; 8. Refrigerated dryer controller; 9. Water-air separator; 10. Second filter; 11. Third filter; 12. Second drain ball valve; 13. First automatic drain valve; 14. Second automatic drain valve; 15. Third drain ball valve; 16. Bottom connecting pipe; 17. Solenoid valve; 18. T-connector; 19. Compressed air outlet pipe; 20. First manual ball valve; 21. Nitrogen generator; 22. Nitrogen generator controller; 23. Second manual ball valve; 24. Fourth filter; 25. Drain ball valve; 26. Second air tank; 27. Drain valve; 28. T-connector; 29. ​​Detector; 30. Silencer; 31. Compressed nitrogen outlet pipe; 32. First laser machine; 33. Second laser machine. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Example: Refer to Figure 1-4 An air compressor with an integrated nitrogen generator includes an air compressor 1, a first air storage tank 3 connected to one side of the air compressor 1, a first filter 6 connected to one side of the first air storage tank 3, a refrigerated dryer 7 connected to one side of the first filter 6, a solenoid valve 17 connected to one side of the refrigerated dryer 7, a separation filter assembly provided on one side of the solenoid valve 17, a three-way pipe 18 connected to one side of the separation filter assembly, a compressed air outlet pipe 19 connected to the bottom of the three-way pipe 18, a first manual ball valve 20 provided on the compressed air outlet pipe 19, a second manual ball valve 23 connected to one end of the three-way pipe 18, a nitrogen generator 21 connected to one side of the second manual ball valve 23, a second air storage tank 26 connected to one side of the nitrogen generator 21, a three-way ball valve 28 connected to one side of the second air storage tank 26, and a compressed nitrogen outlet pipe 31 connected to one end of the three-way ball valve 28.

[0016] Furthermore, the air compressor 1 is equipped with a compression controller 2, the refrigerated dryer 7 is equipped with a refrigerated dryer controller 8, the nitrogen generator 21 is equipped with a nitrogen generator controller 22, the bottom of the first air storage tank 3 is connected to a user pipe 4, the user pipe 4 is equipped with a first drain ball valve 5, the separation filter assembly includes a water-air separator 9 installed on one side of the solenoid valve 17, a second filter 10 and a third filter 11 are sequentially connected to one side of the water-air separator 9, the bottom of the water-air separator 9, the second filter 10 and the third filter 11 are all connected to a second drain ball valve 12, and a first automatic drain valve 13 is provided below the three second drain ball valves 12.

[0017] Furthermore, a second automatic drain valve 14 is installed at the bottom of the first filter 6, and a third drain ball valve 15 is installed on the second automatic drain valve 14. The three first automatic drain valves 13, the second automatic drain valve 14 and the refrigerated dryer 7 are connected to the same bottom connecting pipe 16. A fourth filter 24 is installed between the nitrogen generator 21 and the second gas storage tank 26. A drain ball valve 25 is installed on one side of the fourth filter 24. A drain valve 27 is installed on one side of the second gas storage tank 26. A detector 29 is installed between the second gas storage tank 26 and the three-way ball valve 28. A silencer 30 is connected to one side of the three-way ball valve 28. A first laser machine 32 and a second laser machine 33 are installed on one side of the compressed nitrogen outlet pipe 31. The first laser machine 32 is a nitrogen or air laser machine, and the second laser machine 33 is an air laser machine.

[0018] In use: different types of compressed gas can be used. The air compressor 1, nitrogen generator 21, and gas post-processing equipment are assembled into one unit with different interfaces. It can use post-processed compressed air or compressed nitrogen of various purities. The solenoid valve 17 after the refrigerated dryer 7 has an interlock function with the refrigerated dryer controller 8. When the refrigerated dryer 7 stops due to malfunction or is manually stopped, the input gas source of the nitrogen generator 21 will be cut off simultaneously to prevent untreated compressed air from entering the nitrogen generator 21 or further into the lens of the laser machine, thus preventing damage to downstream equipment or preventing gases that do not meet the required purity or air quality from entering downstream equipment.

[0019] A three-way pipe 18 is provided between the refrigerated dryer 7 and the nitrogen generator 21. The inlet of the three-way pipe 18 is connected to the refrigerated dryer 7, and one outlet of the three-way pipe 18 leads to the nitrogen generator 21. The other outlet of the three-way pipe 18 leads to the gas-consuming end, such as a laser machine. When the laser machine cuts different materials and uses different gases, different gases can be selected for cutting. The two outlets of the three-way pipe 18 are connected to shut-off valves, such as the first manual ball valve 20 and the second manual ball valve 23. The two gas paths can be switched at any time as needed. If the downstream equipment is connected, both paths can be opened simultaneously.

[0020] A fourth filter 24, a second gas storage tank 26, a nitrogen purity detector 29, and a three-way ball valve 28 are installed after the nitrogen generator 21. The three-way ball valve 28 is located after the second gas storage tank 26, and the nitrogen purity detector 29 is located before the three-way ball valve 28. The inlet of the three-way ball valve 28 is connected to the second gas storage tank 26. One of the two outlets of the three-way ball valve 28 goes to terminal equipment, such as a laser machine, and the other goes through a silencer 30 for venting. When the nitrogen purity detector 29 detects that the nitrogen does not reach the set purity value, the three-way ball valve... Ball valve 28 is connected to the atmospheric port, and the nitrogen is vented through silencer 30 until the nitrogen purity reaches the set value. Then, three-way ball valve 28 automatically turns back to the terminal equipment outlet to supply nitrogen for the laser machine. Nitrogen purity detector 29 is connected to the nitrogen generator 21 controller. After data processing and judgment by nitrogen generator controller 22, it sends a corresponding signal to control three-way ball valve 28 to connect to the corresponding port, so as to automatically control the nitrogen purity. Three-way ball valve 28 can be electric or pneumatic and can automatically control the valve.

[0021] The solenoid valve 17 after the refrigerated dryer 7 can be replaced with an electric ball valve, a pneumatic ball valve, or similar automatic two-way valve to achieve the same function. A three-way pipe 18 is provided between the refrigerated dryer 7 and the nitrogen generator 21, which can use more ports, such as a four-way pipe, or a bypass port can be added to any port to connect to more applications, such as an air gun. The three-way ball valve 28 can be connected to a four-way valve to block one of the ports, or two independent automatic two-way valves, such as electric ball valves, to achieve the same effect.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An air compressor with an integrated nitrogen generator, comprising an air compressor (1), characterized in that, The air compressor (1) is connected to a first air tank (3) on one side, a first filter (6) is connected to one side of the first air tank (3), a refrigerated dryer (7) is connected to one side of the first filter (6), a solenoid valve (17) is connected to one side of the refrigerated dryer (7), a separation filter assembly is provided on one side of the solenoid valve (17), a three-way pipe (18) is connected to one side of the separation filter assembly, a compressed air outlet pipe (19) is connected to the bottom of the three-way pipe (18), a first manual ball valve (20) is provided on the compressed air outlet pipe (19), a second manual ball valve (23) is connected to one end of the three-way pipe (18), a nitrogen generator (21) is connected to one side of the second manual ball valve (23), a second air tank (26) is connected to one side of the nitrogen generator (21), a three-way ball valve (28) is connected to one side of the second air tank (26), and a compressed nitrogen outlet pipe (31) is connected to one end of the three-way ball valve (28).

2. An air compressor with an integrated nitrogen generator according to claim 1, characterized in that, The air compressor (1) is equipped with a compression controller (2), the refrigerated dryer (7) is equipped with a refrigerated dryer controller (8), and the nitrogen generator (21) is equipped with a nitrogen generator controller (22).

3. An air compressor with an integrated nitrogen generator according to claim 1, characterized in that, The bottom of the first gas storage tank (3) is connected to a user pipe (4), and a first drain ball valve (5) is installed on the user pipe (4).

4. An air compressor with an integrated nitrogen generator according to claim 1, characterized in that, The separation and filtration assembly includes a water-air separator (9) installed on one side of the solenoid valve (17). A second filter (10) and a third filter (11) are connected in sequence on one side of the water-air separator (9). A second drain ball valve (12) is connected to the bottom of the water-air separator (9), the second filter (10) and the third filter (11). A first automatic drain valve (13) is provided below the three second drain ball valves (12).

5. An air compressor with an integrated nitrogen generator according to claim 4, characterized in that, The bottom of the first filter (6) is provided with a second automatic drain valve (14), and a third drain ball valve (15) is provided on the second automatic drain valve (14). The three first automatic drain valves (13), the second automatic drain valves (14) and the refrigerated dryer (7) are connected to the same bottom connecting pipe (16).

6. An air compressor with an integrated nitrogen generator according to claim 1, characterized in that, A fourth filter (24) is provided between the nitrogen generator (21) and the second gas storage tank (26). A drain ball valve (25) is provided on one side of the fourth filter (24), and a drain valve (27) is provided on one side of the second gas storage tank (26).

7. An air compressor with an integrated nitrogen generator according to claim 1, characterized in that, A detector (29) is installed between the second gas storage tank (26) and the three-way ball valve (28). A silencer (30) is connected to one side of the three-way ball valve (28). A first laser machine (32) and a second laser machine (33) are installed on one side of the compressed nitrogen outlet pipe (31). The first laser machine (32) is a nitrogen or air laser machine, and the second laser machine (33) is an air laser machine.