Nitrogen generator with good filtering effect

Abstract

The nitrogen generator with the good filtering effect comprises a bottom plate, an electric control box, a nitrogen tank, a separation tank, an air compressor, a right-angle frame and a filtering box are installed on the upper portion of the bottom plate, a controller is installed in the electric control box, an installation pipe is installed on the upper portion of the nitrogen tank in a penetrating mode, and a bent pipe is installed at the upper end of the installation pipe. An electronic gas dehydrator is installed on the upper portion of the right-angle frame, a three-way pipe is connected to the input end of the air compressor in a clamped mode, two filter grooves are formed in the upper portion of the filter box, partition plates and filter screens are installed in the two filter grooves, and the two ends of the three-way pipe penetrate through the two partition plates respectively. The nitrogen generator with the good filtering effect has the beneficial effects that the filter box and the filter tank are adopted, and the filter screen structure can be cleaned without stopping the air filtering work through the filter box and the filter tank, so that the use practicability of the nitrogen generator with the good filtering effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of nitrogen generators, in particular to a nitrogen generator with good filtering effect. Background Art

[0002] A nitrogen generator is a device that can prepare high-purity nitrogen on site. It is widely used in laboratories, industrial production and other fields, such as gas chromatography, laser cutting, and electronic manufacturing. In actual use, it has the advantages of simple operation, stable structure, safe use and good nitrogen preparation effect.

[0003] The prior art discloses a nitrogen generator with good filtering effect as announced in CN216808147U. The above utility model needs to move the rectangular frame to complete the alternating use of the two filters inside it, but it does not have a cleaning structure. The operator still needs to disassemble the filter before cleaning the filter. Frequent disassembly and assembly of the filter will increase the operation steps and reduce the practicality of the use of this utility model. At the same time, as the nitrogen enters the nitrogen tank, the pressure inside the nitrogen tank will gradually increase. Since there is no air-permeable structure on the inner wall of the cylinder, it is difficult for the nitrogen inside the nitrogen tank to lift the piston plate inside the cylinder, and then it is difficult to realize the piston plate pressing the pressure sensor. This brings hidden dangers to the protection of the nitrogen tank of this utility model.

[0004] Currently, no effective solutions have been proposed for the problems in related technologies. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the shortcomings of the existing technology, the present invention provides a nitrogen generator with good filtering effect, which has the advantages of being able to complete the cleaning of the filter structure without stopping the air filtration work and smoothly realizing the protection of the nitrogen tank, thereby solving the problems in the above-mentioned background technology.

[0007] (2) Technical solution

[0008] In order to achieve the above advantages of completing the cleaning of the filter structure without stopping the air filtration work and smoothly protecting the nitrogen tank, the specific technical solutions adopted by the utility model are as follows:

[0009] A nitrogen generator with good filtering effect comprises a bottom plate, an electric control box, a nitrogen tank, a separation tank, an air compressor, a right-angle bracket and a filter box are installed on the upper part of the bottom plate, a controller is installed inside the electric control box, a mounting pipe is installed through the upper part of the nitrogen tank, and a bend is installed on the upper end of the mounting pipe, an electronic gas dehydrator is installed on the upper part of the right-angle bracket, a three-way pipe is clamped on the input end of the air compressor, two groups of filter tanks are provided on the upper part of the filter box, and partitions and filter screens are installed inside the two groups of filter tanks, the two ends of the three-way pipe respectively pass through the two groups of partitions, and the insides of the two groups of filter tanks are The walls are penetrated by water inlet pipes and outlet pipes, two groups of right-angle plates are installed on the upper part of the filter box, and the upper parts of the two groups of right-angle plates are fixedly penetrated by electric telescopic rods, and one end of the two groups of electric telescopic rods are installed with cover plates, the lower parts of the two groups of cover plates are installed with concave plates, the inner bottom surfaces of the two groups of concave plates are installed with drive motors, the output ends of the two groups of drive motors are installed with connecting shafts through couplings, one ends of the two groups of connecting shafts slide through the two groups of filter screens respectively, the lower end side walls of the two groups of connecting shafts are connected with piston rods through bearing sleeves, and the side walls of the two groups of connecting shafts are installed with two groups of scrapers.

[0010] Furthermore, the side walls of the two groups of water outlet pipes and the two groups of water inlet pipes are both provided with control valves.

[0011] Furthermore, a mounting filter is fixedly installed inside the mounting tube, and a vertical rod is slidably passed through the upper part of the mounting filter, a limit plate is installed at the upper end of the two groups of vertical rods, a piston plate is installed at the lower end of the two groups of vertical rods, and the side walls of the two groups of vertical rods are sleeved with telescopic springs, a pressure sensor is installed at the lower part of the mounting filter, and a breathable net is installed inside one end of the bent pipe, and the pressure sensor is electrically connected to the controller through wires.

[0012] Furthermore, the inner diameter length of the bent pipe is greater than the inner diameter length of the installation pipe.

[0013] Furthermore, a connecting pipe is installed between the nitrogen tank and the separation tank, an exhaust pipe is installed between the separation tank and the electronic odor eliminator, and a delivery pipe is installed between the air compressor and the electronic odor eliminator.

[0014] Furthermore, the controller is electrically connected to the air compressor, the electronic gas dehumidifier, the two sets of the electric telescopic rods and the two sets of the driving motors through wires.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the present invention provides a nitrogen generator with good filtering effect, which has the following beneficial effects:

[0017] (1) The utility model adopts a filter box and a filter tank. When a nitrogen generator with good filtering effect is actually used, a controller is used to make the air compressor and the electronic gas dehumidifier work. The air compressor can filter the external air through two sets of filter screens, and then send it to the electronic gas dehumidifier through a three-way pipe and a delivery pipe for drying. The electronic gas dehumidifier can effectively remove water vapor in the air. The dried air is sent to the separation tank through the exhaust pipe. The nitrogen produced by the separation tank is sent to the nitrogen tank through the connecting pipe. When a set of filter screens needs to be cleaned, a set of electric telescopic rods is extended by the controller, which can make a set of cover plates, a set of concave plates, a set of driving motors, a set of connecting shafts and a set of piston rods on the same side move downward. When the piston rods on the same side are inserted into one end of the three-way pipe, the electric telescopic rods on the same side continue to be extended. When the cover plates on the same side cover the openings of the filter tanks on the same side, clean water passes through the filter tanks on the same side. A set of water inlet pipes is filled into the interior of a set of filter tanks on the same side. This part of clean water can flush the filter screen on the same side, and the cleaning water can be discharged through a set of water outlet pipes on the same side. Then, the control panel is used to activate the drive motor on the same side. The output end of this drive motor rotates through a set of connecting shafts on the same side, so that the two sets of scrapers on the same side can scrape impurities on the upper part of the filter screen on the same side. When cleaning is completed, the control panel is used to shorten the electric telescopic rod. When the cover plate on the same side is separated from the opening of the filter tank on the same side, the piston rod on the same side has not yet separated from the tee pipe. At this time, impurities on the upper part of the filter screen on the same side can be removed. At the same time, air can pass through the other set of filter tanks and filter screens for air filtration. The cleaning of the other set of filter screens can be achieved through the same operation. By providing a filter box and filter tank, the filter structure can be cleaned without stopping the air filtration work, thereby improving the practicality of the nitrogen generator with good filtration effect.

[0018] (2) The utility model adopts a mounting pipe and a bend pipe. According to the above operation, the nitrogen produced by the separation tank is sent into the nitrogen tank through the connecting pipe. As the nitrogen enters the interior of the nitrogen tank, the nitrogen can push up the piston plate. During the upward movement of the piston plate, the two sets of telescopic springs can be squeezed with the help of the mounting filter. When the piston plate presses the pressure sensor, a signal can be sent to the controller, and the controller stops the air compressor and the electronic gas dehumidifier. The two sets of vertical rods can ensure the stability of the upward and downward movement of the piston plate. The limit plate prevents the two sets of vertical rods from being separated from the mounting filter. During the upward movement of the piston plate, the air inside the mounting pipe can be pushed out through the bend pipe to avoid the gas between the piston plate and the mounting pipe due to the sealing of the upper end of the mounting pipe, which hinders the upward movement of the piston plate. The breathable net can prevent impurities from entering the interior of the bend pipe. By setting the mounting pipe and the bend pipe, the protection of the nitrogen tank can be smoothly achieved, which provides a guarantee for the protection of the nitrogen tank of the nitrogen generator with good filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a structural diagram of a nitrogen generator with good filtering effect proposed by the utility model;

[0021] Figure 2 It is a three-dimensional diagram of the elbow proposed by the utility model;

[0022] Figure 3 The utility model proposes Figure 1 A magnified view of middle A;

[0023] Figure 4 The utility model proposes Figure 1 Enlarged view of middle B;

[0024] Figure 5 The utility model proposes Figure 1 Enlarged view of middle C;

[0025] Figure 6 The utility model proposes Figure 1 Enlarged view of D in the middle.

[0026] In the picture:

[0027] 1. Base plate; 2. Nitrogen tank; 3. Separation tank; 4. Air compressor; 5. Right-angle bracket; 6. Filter box; 7. Filter tank; 8. Connecting pipe; 9. Electronic gas dehydrator; 10. Delivery pipe; 11. Exhaust pipe; 12. Mounting pipe; 13. Elbow pipe; 14. Partition; 15. Filter screen; 16. Pressure sensor; 17. Tee; 18. Right-angle plate; 19. Electric telescopic rod; 20. Cover plate; 21. Concave plate; 22. Drive motor; 23. Connecting shaft; 24. Piston column; 25. Water outlet pipe; 26. Water inlet pipe; 27. Control valve; 28. Scraper; 29. ​​Breathable net; 30. Mounting filter screen; 31. Vertical rod; 32. Piston plate; 33. Limit plate; 34. Telescopic spring. DETAILED DESCRIPTION

[0028] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. By referring to these contents, ordinary technicians in this field should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0029] According to an embodiment of the present utility model, a nitrogen generator with good filtering effect is provided.

[0030] The present invention will now be further described with reference to the accompanying drawings and specific embodiments. Figure 1-6 As shown, a nitrogen generator with good filtering effect according to an embodiment of the present invention includes a base plate 1, an electric control box, a nitrogen tank 2, a separation tank 3, an air compressor 4, a right-angle bracket 5 and a filter box 6 are installed on the upper part of the base plate 1, a controller is installed inside the electric control box, a mounting pipe 12 is installed through the upper part of the nitrogen tank 2, and a bend pipe 13 is installed on the upper end of the mounting pipe 12, an electronic gas dehydrator 9 is installed on the upper part of the right-angle bracket 5, a three-way pipe 17 is clamped on the input end of the air compressor 4, two groups of filter tanks 7 are provided on the upper part of the filter box 6, and the interiors of the two groups of filter tanks 7 are both installed with partitions 14 and filter screens 15, the two ends of the three-way pipe 17 respectively penetrate the two groups of partitions 14, the inner walls of the two groups of filter tanks 7 are penetrated by water inlet pipes 26 and water outlet pipes 25, and the upper part of the filter box 6 is installed Two groups of right-angle plates 18, and the upper parts of the two groups of right-angle plates 18 are fixed with electric telescopic rods 19, and one end of the two groups of electric telescopic rods 19 is installed with a cover plate 20, the lower parts of the two groups of cover plates 20 are installed with concave plates 21, the inner bottom surfaces of the two groups of concave plates 21 are installed with drive motors 22, the output ends of the two groups of drive motors 22 are installed with connecting shafts 23 through couplings, one end of the two groups of connecting shafts 23 slides through the two groups of filter screens 15 respectively, the lower end side walls of the two groups of connecting shafts 23 are connected with piston rods 24 through bearing sleeves, and the side walls of the two groups of connecting shafts 23 are installed with two groups of scrapers 28. Through the provided filter box 6 and filter tank 7, the filter structure can be cleaned without stopping the air filtration work, thereby improving the practicality of the nitrogen generator with good filtering effect.

[0031] In one embodiment, the side walls of the two groups of water outlet pipes 25 and the two groups of water inlet pipes 26 are each provided with a control valve 27 , and the four groups of control valves 27 serve to open and close the two groups of water outlet pipes 25 and the two groups of water inlet pipes 26 .

[0032] In one embodiment, a mounting filter 30 is fixedly installed inside the mounting tube 12, and a vertical rod 31 is slidably passed through the upper part of the mounting filter 30, a limit plate 33 is installed at the upper end of the two groups of vertical rods 31, a piston plate 32 is installed at the lower end of the two groups of vertical rods 31, and a telescopic spring 34 is sleeved on the side walls of the two groups of vertical rods 31. A pressure sensor 16 is installed at the lower part of the mounting filter 30, and a breathable net 29 is installed inside one end of the bent pipe 13. The pressure sensor 16 is electrically connected to the controller through an electric wire. By providing the mounting tube 12 and the bent pipe 13, the protection of the nitrogen tank 2 can be smoothly achieved, which provides a guarantee for the protection of the nitrogen tank 2 of the nitrogen generator with good filtering effect.

[0033] In one embodiment, the inner diameter length of the curved tube 13 is greater than the inner diameter length of the mounting tube 12 , ensuring that the curved tube 13 can cover the opening of the mounting tube 12 .

[0034] In one embodiment, a connecting pipe 8 is installed between the nitrogen tank 2 and the separation tank 3, an exhaust pipe 11 is installed between the separation tank 3 and the electronic odor eliminator, and a delivery pipe 10 is installed between the air compressor 4 and the electronic odor eliminator.

[0035] In one embodiment, the controller is electrically connected to the air compressor 4, the electronic gas dehumidifier 9, two sets of electric telescopic rods 19 and two sets of drive motors 22 through wires. The controller can be implemented through simple programming by technicians in this field. It is common knowledge in the field and is only used without modification. Therefore, the control method and circuit connection will not be described in detail.

[0036] Working principle:

[0037] When a nitrogen generator with good filtering effect is actually used, the controller is used to make the air compressor 4 and the electronic gas dehumidifier 9 work. The air compressor 4 can filter the external air through two sets of filter screens 15, and then send it to the electronic gas dehumidifier 9 through the three-way pipe 17 and the delivery pipe 10 for drying. The electronic gas dehumidifier 9 can effectively remove water vapor in the air. The dried air is sent to the separation tank 3 through the exhaust pipe 11. The nitrogen produced in the separation tank 3 is sent to the nitrogen tank 2 through the connecting pipe 8. When it is necessary to clean a set of filter screens 15, the controller is used to extend a set of electric telescopic rods 19, which can make a set of cover plates 20, a set of concave plates 21, a set of drive motors 22, a set of connecting shafts 23 and a set of The piston rod 24 moves downward, and when the piston rod 24 of the same side group is inserted into one end of the tee pipe 17, the electric telescopic rod 19 of the same side group continues to extend. When the cover plate 20 of the same side group covers the opening of the filter tank 7 of the same side group, clean water is filled into the interior of the filter tank 7 of the same side group through the water inlet pipe 26 of the same side group. This part of the clean water can flush the filter screen 15 of the same side group, and the cleaning water can be discharged through the water outlet pipe 25 of the same side group. Then, the control panel is used to make the drive motor 22 of the same side group work. The output end of this drive motor 22 rotates the two scrapers 28 of the same side group through the connecting shaft 23 of the same side group. The rotating scrapers 28 of the same side group can scrape off impurities on the upper part of the filter screen 15 of the same side group. When cleaning is completed, the electric telescopic rod 1 is shortened by using the control panel. 9. When the cover plate 20 of the same side group is separated from the opening of the filter tank 7 of the same side group, the piston rod 24 of the same side group has not yet separated from the tee pipe 17. At this time, the impurities on the upper part of the filter screen 15 of the same side group can be taken out. At the same time, the air can pass through the other group of filter tanks 7 and the filter screen 15 for air filtering. The cleaning of the other group of filter screens 15 can be obtained by the same operation. By setting the filter box 6 and the filter tank 7, the cleaning work of the filter structure can be completed without stopping the air filtering work, thereby improving the practicality of the nitrogen generator with good filtering effect. At the same time, according to the above operation, the nitrogen prepared in the separation tank 3 is sent into the nitrogen tank 2 through the connecting pipe 8. As the nitrogen enters the interior of the nitrogen tank 2, the nitrogen can lift the piston plate 32, and the piston plate 32 moves over During the movement of the piston plate 32, the air inside the mounting tube 12 can be pushed out through the elbow 13 to avoid the gas between the piston plate 32 and the mounting tube 12 due to the sealing of the upper end of the mounting tube 12, which hinders the upward movement of the piston plate 32. The air permeable net 29 can prevent impurities from entering the interior of the elbow 13. By setting the mounting tube 12 and the elbow 13, the protection of the nitrogen tank 2 can be smoothly achieved.It provides a guarantee for the protection of nitrogen tank 2 of nitrogen generator with good filtering effect.

[0038] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A nitrogen generator with good filtering effect, characterized in that: The invention comprises a bottom plate (1), an electric control box, a nitrogen tank (2), a separation tank (3), an air compressor (4), a right-angle bracket (5) and a filter box (6) are installed on the upper part of the bottom plate (1), a controller is installed inside the electric control box, a mounting pipe (12) is installed through the upper part of the nitrogen tank (2), and a bend pipe (13) is installed on the upper end of the mounting pipe (12), an electronic gas dehumidifier (9) is installed on the upper part of the right-angle bracket (5), a three-way pipe (17) is connected to the input end of the air compressor (4), two groups of filter tanks (7) are provided on the upper part of the filter box (6), and the insides of the two groups of filter tanks (7) are both installed with partitions (14) and filter screens (15), the two ends of the three-way pipe (17) respectively penetrate the two groups of partitions (14), and the inner walls of the two groups of filter tanks (7) are both penetrated by water inlet pipes. (26) and a water outlet pipe (25), two groups of right-angle plates (18) are installed on the upper part of the filter box (6), and the upper parts of the two groups of right-angle plates (18) are fixed with electric telescopic rods (19), and one end of the two groups of electric telescopic rods (19) is installed with a cover plate (20), the lower parts of the two groups of cover plates (20) are installed with concave plates (21), the inner bottom surfaces of the two groups of concave plates (21) are installed with driving motors (22), the output ends of the two groups of driving motors (22) are installed with connecting shafts (23) through couplings, one end of the two groups of connecting shafts (23) respectively slides through the two groups of filter screens (15), the lower end side walls of the two groups of connecting shafts (23) are connected with piston rods (24) through bearing sleeves, and the side walls of the two groups of connecting shafts (23) are installed with two groups of scrapers (28).

2. A nitrogen generator with good filtering effect according to claim 1, characterized in that: The side walls of the two groups of water outlet pipes (25) and the two groups of water inlet pipes (26) are both provided with control valves (27).

3. A nitrogen generator with good filtering effect according to claim 1, characterized in that: A mounting filter (30) is fixedly installed inside the mounting tube (12), and a vertical rod (31) is slidably passed through the upper part of the mounting filter (30), and a limit plate (33) is installed at the upper end of the two groups of vertical rods (31), and a piston plate (32) is installed at the lower end of the two groups of vertical rods (31). The side walls of the two groups of vertical rods (31) are sleeved with a telescopic spring (34), and a pressure sensor (16) is installed at the lower part of the mounting filter (30). A breathable net (29) is installed inside one end of the bent pipe (13), and the pressure sensor (16) is electrically connected to the controller through an electric wire.

4. A nitrogen generator with good filtering effect according to claim 3, characterized in that: The inner diameter length of the curved pipe (13) is greater than the inner diameter length of the mounting pipe (12).

5. A nitrogen generator with good filtering effect according to claim 1, characterized in that: A connecting pipe (8) is installed between the nitrogen tank (2) and the separation tank (3), an exhaust pipe (11) is installed between the separation tank (3) and the electronic odor eliminator, and a delivery pipe (10) is installed between the air compressor (4) and the electronic odor eliminator.

6. A nitrogen generator with good filtering effect according to claim 1, characterized in that: The controller is electrically connected to the air compressor (4), the electronic gas dehumidifier (9), the two sets of electric telescopic rods (19) and the two sets of driving motors (22) through electric wires.

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