A nitrogen generator

By introducing a belt drive system with cooling fans and heat dissipation plates, a filter screen and a detachable filter box design, and a combination of zeolite molecular sieves into the nitrogen generator, the problems of insufficient heat dissipation efficiency and limited air filtration effect are solved, achieving efficient operation and convenient maintenance of the equipment.

CN224672407UActive Publication Date: 2026-08-25SUZHOU SHIWOKE ELECTROMECHANICAL EQUIP CO LTD
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Patent Information

Application Number
CN202521776816.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-20
Publication Date
2026-08-25
Estimated Expiration
2035-08-20

AI Technical Summary

Technical Problem

Existing nitrogen generators suffer from insufficient heat dissipation efficiency, limited air filtration effect, and inconvenient maintenance, which affect equipment efficiency and lifespan.

Method used

The system employs a cooling fan and heat dissipation plate combined with a belt drive system for heat dissipation, uses a filter screen and a removable filter box for air filtration, separates gases using zeolite molecular sieves, and utilizes a magnetic attraction to facilitate easy filter screen replacement.

Benefits of technology

It improves the heat dissipation efficiency of the air compressor, ensures clean air enters the system, prevents equipment damage, simplifies the cleaning and replacement process of the filter, and improves the operating efficiency and service life of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to nitrogen making machine technical field provides a kind of nitrogen making machine, comprising: base and multiple radiating fans, air compressor, fixedly installed in the top of base, the air compressor is fixedly installed with air inlet pipe on the side close to its top, the air compressor is fixedly installed with long gas pipe on the side away from air inlet pipe;Fan, rotates in the inside of long gas pipe, the utility model, when using, the temperature of air compressor increases, gas is driven to rotate after passing through the fan in the inside of long gas pipe, fan drives belt two to move by belt pulley, the other end of belt two is driven to move by belt one through belt pulley at this time, belt one drives radiating fan to rotate at this time, while radiating fan is connected by belt one and belt pulley, so that multiple radiating fans rotate simultaneously, can carry out heat dissipation to the inside of air compressor when rotating, improve the working efficiency of air compressor.
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Description

Technical Field

[0001] This utility model relates to the field of nitrogen generator technology, and in particular to a nitrogen generator. Background Technology

[0002] With the development of industrial technology, nitrogen generators are increasingly widely used in chemical, electronics, and food preservation fields. Traditional nitrogen generators typically employ pressure swing adsorption (PSA) or membrane separation technology, with PSA nitrogen generators becoming the mainstream due to their high efficiency and low energy consumption. Its core principle is to utilize zeolite molecular sieves to selectively adsorb oxygen and nitrogen from the air, thereby separating high-purity nitrogen.

[0003] However, existing nitrogen generators still have some problems in actual operation: Insufficient heat dissipation efficiency: Air compressors generate a lot of heat when running at high pressure for a long time. If the heat dissipation is poor, the equipment temperature will rise, affecting the compression efficiency and the adsorption performance of the molecular sieve, and even shortening the equipment life.

[0004] Limited air filtration effect: Compressed air often contains particulate matter such as oil and dust. If the filtration is not thorough, it will clog the molecular sieve or damage downstream equipment, increasing maintenance costs.

[0005] Inconvenient maintenance: Cleaning or replacing traditional filters requires stopping the machine for disassembly, which is cumbersome and affects production efficiency. Utility Model Content

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a nitrogen generator, comprising: a base and multiple cooling fans; an air compressor fixedly installed on the top of the base; an air inlet pipe fixedly installed on the side of the air compressor near its top; and a long air pipe fixedly installed on the side of the air compressor away from the air inlet pipe; a fan rotating inside the long air pipe; a second belt movably fitted on one side of the fan via a pulley; a first belt movably fitted on the outer surface of each of the multiple cooling fans via pulleys; the bottom end of the second belt movably fitted on one end of one of the first belts via a pulley; a heat dissipation plate fixedly installed on the side of the air compressor near its bottom; multiple heat dissipation slots evenly opened on the heat dissipation plate; and multiple cooling fans located on the parallel side of the heat dissipation plate.

[0007] The technical effect of adopting the above-mentioned further solution is as follows: Air enters the air compressor through the intake pipe, and then enters the long air pipe after being compressed by the air compressor. The temperature of the air compressor increases accordingly. The gas passes through the fan inside the long air pipe and drives it to rotate. The fan drives belt two to move through the pulley. At the same time, the other end of belt two drives belt one to move through the pulley. At the same time, belt one drives the cooling fan to rotate. Simultaneously, the cooling fans are connected to the pulley through belt one, so that multiple cooling fans rotate at the same time. When rotating, they can dissipate heat from the inside of the air compressor and improve the working efficiency of the air compressor. The heat dissipation slots on the heat dissipation plate can allow air to circulate on both sides of the heat dissipation plate. When the air temperature inside the air compressor rises, a small part of the hot air inside the air compressor can be discharged through the heat dissipation slots, or air outside the air compressor can enter the air compressor through the heat dissipation slots. Both of the above methods can reduce the temperature around the heat dissipation plate.

[0008] In a preferred embodiment, an air tank is fixedly installed on the top of the base, one end of the long air pipe is fixedly installed inside the air tank, a vent pipe is fixedly installed on one side of the air tank, an air pipe is fixedly installed on the side of the air tank near its top, a one-way valve is provided inside the air pipe, a filter box is fixedly installed on one end of the vent pipe, and a separator is fixedly installed on one side of the filter box.

[0009] The technical effect of adopting the above-mentioned further solution is that after the air is compressed, it enters the interior of the air tank through a long air pipe, and then enters the interior of the filter box through a ventilation pipe. The filter screen filters the particulate matter in the air, ensuring that the air entering the system is clean and preventing damage to the equipment.

[0010] In a preferred embodiment, a zeolite molecular sieve is installed inside the separation tank, a nitrogen pipe is fixedly installed on one side of the separation tank near its bottom, a nitrogen tank is fixedly installed at one end of the nitrogen pipe, the nitrogen tank is fixedly installed on the top of the base, a filter screen is detachably connected inside the filter box, two locking holes are opened on the top of the filter screen, and two threaded rods are movably embedded on the top of the filter box.

[0011] The technical effect of adopting the above-mentioned further solution is that: the gas enters the interior of the separator, and the oxygen and nitrogen in the air are separated by the zeolite molecular sieve. The nitrogen is then transported to the interior of the nitrogen tank for storage through the nitrogen pipe.

[0012] In a preferred embodiment, both threaded rods are movably embedded inside the two locking holes. A switch door is connected to one side of the filter box via a hinge. A round rod is movably embedded on one side of the switch door. A magnet is fixedly installed at one end of the round rod. A groove is formed on one side of the filter box, and a magnet is fixedly installed inside the groove.

[0013] The technical effect of adopting the above-mentioned further solution is that by rotating the threaded rod on the inner wall of the filter box, the threaded rod disengages from the inside of the locking hole, and the filter screen can be taken out from the inside of the filter box for cleaning or replacement.

[0014] In a preferred embodiment, the second magnet is movably embedded inside the groove, and the second magnet attracts the first magnet.

[0015] The technical effect of adopting the above-mentioned further solution is that: pulling the round rod causes the second magnet to move, and the second magnet disengages from the inside of the groove. At this time, the switch door can be opened, and the filter screen can be disassembled for cleaning.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In use, air enters the air compressor through the intake pipe and is then compressed by the air compressor before entering the long air pipe. The temperature of the air compressor increases accordingly. The gas passes through a fan inside the long air pipe, which drives the fan to rotate. The fan drives belt two through a pulley. At the same time, the other end of belt two drives belt one through a pulley. Belt one drives the cooling fan to rotate. Meanwhile, the cooling fans are connected to the pulleys through belt one, so that multiple cooling fans rotate simultaneously. During rotation, the air compressor can be cooled, thus improving the working efficiency of the air compressor.

[0017] 2. In use, compressed air enters the air tank through a long air pipe, and then enters the filter box through a ventilation pipe. The filter screen filters particulate matter in the air to ensure the cleanliness of the air entering the system and prevent damage to the equipment. The gas enters the separator, where oxygen and nitrogen are separated by a zeolite molecular sieve. Nitrogen is then transported to the nitrogen tank for storage through a nitrogen pipe. At the same time, pulling the round rod moves the second magnet, which disengages from the groove. At this point, the switch door can be opened, and the filter screen can be disassembled for cleaning.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a three-dimensional structural diagram of a nitrogen generator.

[0020] Figure 2 This is a rear view schematic diagram of a nitrogen generator.

[0021] Figure 3 for Figure 2 Enlarged view of part A in the middle.

[0022] Figure 4 for Figure 2 Enlarged view of section B.

[0023] Figure 5 This is a schematic diagram of the fan structure of a nitrogen generator.

[0024] Figure 6 This is a schematic diagram of the zeolite molecular sieve structure in a nitrogen generator.

[0025] Legend: 101. Base; 102. Air compressor; 103. Inlet pipe; 104. Long air pipe; 105. Fan; 106. Belt 1; 107. Cooling fan; 108. Heat sink; 1081. Heat dissipation channel; 109. Belt 2; 110. Air tank; 111. Air pipe; 112. One-way valve; 113. Filter box; 114. Vent pipe; 115. Filter screen; 116. Clip hole; 117. Threaded rod; 118. Groove; 119. Magnet 1; 120. Opening door; 121. Round rod; 122. Magnet 2; 123. Separator; 124. Zeolite molecular sieve; 125. Nitrogen pipe; 126. Nitrogen tank. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0029] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0030] Reference Figures 1-6 This utility model provides a nitrogen generator, including: a base 101 and multiple cooling fans 107; an air compressor 102, fixedly installed on the top of the base 101, with an air inlet pipe 103 fixedly installed on the side of the air compressor 102 near its top, and a long air pipe 104 fixedly installed on the side of the air compressor 102 away from the air inlet pipe 103; a fan 105, rotating inside the long air pipe 104, with a belt 109 movably sleeved on one side of the fan 105 via a pulley; and the outer surfaces of the multiple cooling fans 107 are all open. A first belt 106 is movably fitted onto a pulley, and the bottom end of a second belt 109 is movably fitted onto one end of one of the first belts 106 via a pulley. A heat sink 108 is fixedly installed on the side of the air compressor 102 near its bottom. Multiple heat dissipation slots 1081 are evenly distributed on the heat sink 108, and multiple cooling fans 107 are located on the parallel side of the heat sink 108. Air enters the interior of the air compressor 102 through the intake pipe 103, and then, after being compressed by the air compressor 102, enters the long air pipe 104. Inside the air compressor 102, the temperature increases. Gas passes through the fan 105 inside the long air pipe 104, causing it to rotate. The fan 105 drives the second belt 109 via a pulley. The other end of the second belt 109 drives the first belt 106 via a pulley. The first belt 106 then drives the cooling fan 107 to rotate. Simultaneously, the cooling fans 107 are connected to the pulley via the first belt 106, allowing multiple cooling fans 107 to rotate simultaneously. This rotation dissipates heat from the inside of the air compressor 102, improving its efficiency. The heat dissipation slots 1081 on the heat sink 108 allow airflow on both sides of the heat sink 108. When the air temperature inside the air compressor 102 rises, a small portion of the hot air inside can be discharged through the heat dissipation slots 1081, or air from outside the air compressor 102 can enter through the heat dissipation slots 1081. Both methods reduce the temperature around the heat sink 108.

[0031] like Figures 1 to 6 As shown, an air tank 110 is fixedly installed on the top of the base 101. One end of a long air pipe 104 is fixedly installed inside the air tank 110. A ventilation pipe 114 is fixedly installed on one side of the air tank 110. An air pipe 111 is fixedly installed on the side of the air tank 110 near its top. A one-way valve 112 is installed inside the air pipe 111. A filter box 113 is fixedly installed at one end of the ventilation pipe 114. A separator 123 is fixedly installed on one side of the filter box 113. After being compressed, air enters the air tank 110 through the long air pipe 104, and then enters the filter box 113 through the ventilation pipe 114. The filter screen 115 filters the particulate matter in the air to ensure that the air entering the system is clean and to prevent damage to the equipment.

[0032] like Figures 1 to 6 As shown, a zeolite molecular sieve 124 is installed inside the separator 123. A nitrogen pipe 125 is fixedly installed on one side of the separator 123 near its bottom. A nitrogen tank 126 is fixedly installed at one end of the nitrogen pipe 125. The nitrogen tank 126 is fixedly installed on the top of the base 101. A filter screen 115 is detachably connected inside the filter box 113. Two locking holes 116 are opened on the top of the filter screen 115. Two threaded rods 117 are movably embedded on the top of the filter box 113. Gas enters into the separator 123 and separates oxygen and nitrogen in the air through the zeolite molecular sieve 124. The nitrogen is then transported to the nitrogen tank 126 for storage through the nitrogen pipe 125.

[0033] like Figures 1 to 6 As shown, both threaded rods 117 are movably embedded inside the two locking holes 116. A hinged door 120 is connected to one side of the filter box 113. A round rod 121 is movably embedded on one side of the door 120. A magnet 122 is fixedly installed at one end of the round rod 121. A groove 118 is opened on one side of the filter box 113. A magnet 119 is fixedly installed inside the groove 118. By rotating the threaded rod 117, it rotates on the inner wall of the filter box 113. At this time, the threaded rod 117 disengages from the locking hole 116. At this time, the filter screen 115 can be taken out from the inside of the filter box 113 for cleaning or replacement.

[0034] like Figures 1 to 6 As shown, magnet 122 is movably embedded inside the groove 118. Magnet 122 and magnet 119 attract each other. Pulling the round rod 121 moves magnet 122, and magnet 122 disengages from inside the groove 118. At this time, the switch door 120 can be opened. After opening, the filter screen 115 can be disassembled for cleaning.

[0035] Working Principle: During operation, air enters the air compressor 102 through the intake pipe 103. After compression by the air compressor 102, it enters the long air pipe 104, increasing the temperature of the air compressor 102. The air then passes through the fan 105 inside the long air pipe 104, causing it to rotate. The fan 105 drives the second belt 109 via a pulley. The other end of the second belt 109, via a pulley, drives the first belt 106, which in turn drives the cooling fan 107. Simultaneously, the cooling fans 107 are connected to the pulleys via the first belt 106, allowing multiple cooling fans 107 to rotate simultaneously. This rotation dissipates heat from the interior of the air compressor 102, improving its cooling efficiency. The air compressor 102 operates efficiently. Air is compressed and enters the air tank 110 through the long air pipe 104, then through the ventilation pipe 114 into the filter box 113. The filter screen 115 filters particulate matter from the air, ensuring clean air entering the system and preventing equipment damage. The gas then enters the separator 123, where the zeolite molecular sieve 124 separates oxygen and nitrogen. Nitrogen is then transported to the nitrogen tank 126 for storage via the nitrogen pipe 125. Simultaneously, pulling the round rod 121 moves the magnet 122, causing it to detach from the groove 118. At this point, the switch door 120 can be opened, and the filter screen 115 can be disassembled for cleaning.

[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A nitrogen generator, comprising: The base (101) and multiple cooling fans (107) are characterized by: An air compressor (102) is fixedly installed on the top of a base (101). An air inlet pipe (103) is fixedly installed on the side of the air compressor (102) near its top, and a long air pipe (104) is fixedly installed on the side of the air compressor (102) away from the air inlet pipe (103). A fan (105) rotates inside a long air pipe (104). A second belt (109) is movably mounted on one side of the fan (105) via a pulley. A first belt (106) is movably mounted on the outer surface of a plurality of cooling fans (107) via pulleys. The bottom end of the second belt (109) is movably mounted on one end of one of the first belts (106) via a pulley. A heat sink (108) is fixedly installed on the side of the air compressor (102) near its bottom. A plurality of heat dissipation slots (1081) are evenly opened on the heat sink (108). A plurality of cooling fans (107) are located on the side parallel to the heat sink (108).

2. A nitrogen generator according to claim 1, characterized in that: An air tank (110) is fixedly installed on the top of the base (101), one end of the long air tube (104) is fixedly installed inside the air tank (110), and a ventilation tube (114) is fixedly installed on one side of the air tank (110).

3. A nitrogen generator according to claim 2, characterized in that: An air pipe (111) is fixedly installed on one side of the air tank (110) near its top. A one-way valve (112) is provided inside the air pipe (111). A filter box (113) is fixedly installed at one end of the vent pipe (114). A separator (123) is fixedly installed on one side of the filter box (113).

4. A nitrogen generator according to claim 3, characterized in that: The separation tank (123) is equipped with a zeolite molecular sieve (124). A nitrogen pipe (125) is fixedly installed on one side of the separation tank (123) near its bottom. A nitrogen tank (126) is fixedly installed at one end of the nitrogen pipe (125). The nitrogen tank (126) is fixedly installed on the top of the base (101).

5. A nitrogen generator according to claim 4, characterized in that: The filter box (113) is detachably connected to a filter screen (115). The top of the filter screen (115) has two snap holes (116), and the top of the filter box (113) is movably fitted with two threaded rods (117).

6. A nitrogen generator according to claim 5, characterized in that: Both threaded rods (117) are movably embedded inside the two locking holes (116). One side of the filter box (113) is connected to a switch door (120) via a hinge. A round rod (121) is movably embedded on one side of the switch door (120).

7. A nitrogen generator according to claim 6, characterized in that: A magnet (122) is fixedly installed at one end of the round rod (121), and a groove (118) is provided on one side of the filter box (113), and a magnet (119) is fixedly installed inside the groove (118).

8. A nitrogen generator according to claim 7, characterized in that: The second magnet (122) is movably embedded inside the groove (118), and the second magnet (122) attracts the first magnet (119).