CN216512875U - Small-flow nitrogen generator with heat dissipation structure - Google Patents

Abstract

The utility model discloses a small-flow nitrogen generator with a heat dissipation structure, which comprises a casing, wherein two mounting plates are fixed on the inner wall of one side of the casing, an air compressor and an air pump are respectively fixed on the mounting plates, a nitrogen tank and a separation tank are fixed at the bottom end of the casing, a filter box is arranged on the nitrogen tank, a filter assembly is arranged in the filter box, the input end of the air compressor is connected with an air inlet pipe, and one end, far away from the air compressor, of the air inlet pipe is in threaded connection with a screen cover. This nitrogen generator can filter the air that gets into in the air compressor machine to the granule type impurity in the filtering air, and can filter the nitrogen gas that gets into the nitrogen gas jar once more, thereby the purity of increase nitrogen gas that can be great, and can dispel the heat for the inside of casing through water-cooled mode, thereby can effectually dispel the heat to casing inside.

Description

Small-flow nitrogen generator with heat dissipation structure

Technical Field

The utility model relates to the technical field of nitrogen generators, in particular to a small-flow nitrogen generator with a heat dissipation structure.

Background

Along with frequent food safety events in recent years, requirements on a detection method of a liquid chromatograph-mass spectrometer are more and more in food safety detection, nitrogen is needed in the use of liquid chromatograph-mass spectrometer equipment, most of the prior liquid nitrogen is provided by using a liquid nitrogen tank, and the nitrogen tank needs to be replaced after use, so that the operation is inconvenient, and accordingly, a nitrogen generator is generated, and the nitrogen generator is an advanced gas separation technology, and high-purity nitrogen is prepared by taking a high-quality imported carbon molecular sieve as an adsorbent and adopting a pressure swing adsorption principle at normal temperature to separate air.

However, as the working time is prolonged, heat generated in the working process of the nitrogen generator cannot be well dissipated, the working efficiency of the nitrogen generator is influenced, the service life of the nitrogen generator is shortened, various particle impurities are usually suspended in the air and directly enter the nitrogen generator, the purity of the prepared nitrogen is influenced, and the nitrogen generator is easily blocked after a long time.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

The present invention has been made in an effort to provide a small-flow nitrogen generator having a heat dissipating structure to solve the problems occurring in the related art.

In order to achieve the purpose, the utility model provides the following technical scheme: a small-flow nitrogen generator with a heat dissipation structure comprises a shell, wherein two mounting plates are fixed on the inner wall of one side of the shell, an air compressor and an air pump are fixed on the mounting plates respectively, a nitrogen tank and a separating tank are fixed at the bottom end of the shell, a filter box is arranged on the nitrogen tank, a filter assembly is arranged in the filter box, the input end of the air compressor is connected with an air inlet pipe, one end of the air compressor, away from the air inlet pipe, is connected with a screen cover in a threaded manner, the output end of the air compressor is connected with the input end of the separating tank through a guide pipe, the lower end of the separating tank is connected with an air discharge pipe, the input end of the air pump is connected with the upper end of the separating tank through a guide pipe, the output end of the air pump is connected with the input end of the filter box through a guide pipe, and the output end of the filter box is connected with the nitrogen tank through a guide pipe, nitrogen gas jar lower extreme one side is connected with the nitrogen gas output tube, just nitrogen gas output tube mid-mounting has the valve, the embedded water-cooled tube that is equipped with of backplate of casing, casing one side inner wall is fixed with the circulating pump, casing one side outer wall is fixed with the cooling tube, the one end of water-cooled tube with the input of circulating pump is connected, the other end of water-cooled tube with the one end of cooling tube is connected, the other end of cooling tube with the output of circulating pump is connected.

Furthermore, universal wheels are mounted below four corners of the machine shell.

Furthermore, the front surface of the machine shell is provided with an access hole, and a cover plate is fixed outside the access hole through a plurality of screws.

Further, a pressure gauge is installed on one side of the nitrogen tank, and a gauge head of the pressure gauge is arranged outside the shell.

Further, the filtering component comprises a filtering net, an upper clamping groove and a lower clamping groove, a sealing cover is fixed at the upper end of the filtering box through a plurality of screws, a sealing gasket is fixed below the sealing cover, the lower end of the sealing gasket is fixed with two upper clamping grooves, the bottom end of the filtering box is fixed with two lower clamping grooves, and the upper clamping grooves correspond to the lower clamping grooves, and the filtering net is arranged between the lower clamping grooves.

Further, the casing is close to one side outer wall of cooling tube is fixed with out the fan box, just it sets up to go out the fan box the cooling tube top, a plurality of exhaust vents have been seted up to play fan box lower extreme, the air discharge pipe is kept away from the one end of knockout drum with it connects to go out the fan box.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, through arranging the air compressor, the air pump, the nitrogen tank, the separation tank, the filter box, the filter assembly, the screen cover, the water cooling pipe, the circulating pump and the radiating pipe, air entering the air compressor can be filtered, so that particle type impurities in the air are filtered, and nitrogen entering the nitrogen tank can be filtered again, so that the purity of the nitrogen can be greatly increased, and the inside of the shell can be radiated in a water cooling mode, so that the inside of the shell can be effectively radiated;

2. by arranging the access hole and the cover plate, the cover plate can be opened to conveniently overhaul devices in the shell through the access hole;

3. according to the utility model, by arranging the filter screen, the upper clamping groove, the lower clamping groove and the sealing cover, nitrogen entering the nitrogen tank can be filtered by using the filter screen, the inside of the filter box can be cleaned conveniently by opening the sealing cover, and the filter screen can be detached for replacement or cleaning, so that the filter box is more convenient;

4. according to the utility model, the air outlet box and the air outlet are arranged, so that air near the radiating pipe can be driven to flow by utilizing air exhausted by the air exhaust pipe, the radiating efficiency of the radiating pipe can be greatly increased, the exhausted air can be recycled, and the energy-saving and environment-friendly effects are achieved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic diagram of a low flow nitrogen generator having a heat dissipating structure in accordance with an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a low flow nitrogen generator having a heat dissipating structure in accordance with an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a back plate in a low flow nitrogen generator having a heat dissipating structure according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of a low flow nitrogen generator filter box with heat dissipating structure in accordance with an embodiment of the present invention;

fig. 5 is a schematic view of an outlet box in a small flow nitrogen generator having a heat dissipating structure according to an embodiment of the present invention.

Reference numerals:

1. a housing; 2. mounting a plate; 3. an air compressor; 4. an air pump; 5. a nitrogen tank; 6. a separation tank; 7. a filter box; 8. an air inlet pipe; 9. a screen cover; 10. an air outlet duct; 11. a nitrogen gas output pipe; 12. a valve; 13. a water-cooled tube; 14. a circulation pump; 15. a radiating pipe; 16. a universal wheel; 17. a cover plate; 18. a pressure gauge; 19. a filter screen; 20. an upper clamping groove; 21. a lower clamping groove; 22. a sealing cover; 23. a gasket; 24. an air outlet box; 25. an air outlet; 26. a back plate.

Detailed Description

The following, with reference to the drawings and the detailed description, further description of the present invention is made:

example (b):

referring to fig. 1-5, a small-flow nitrogen generator with a heat dissipation structure according to an embodiment of the present invention includes a housing 1, two mounting plates 2 are fixed to an inner wall of one side of the housing 1, an air compressor 3 and an air pump 4 are respectively fixed to the mounting plates 2, a nitrogen tank 5 and a separation tank 6 are fixed to a bottom end of the housing 1, a filter box 7 is arranged on the nitrogen tank 5, a filter assembly is arranged in the filter box 7, an air inlet pipe 8 is connected to an input end of the air compressor 3, a screen cover 9 is connected to an end of the air inlet pipe 8 away from the air compressor 3 through a screw thread, an output end of the air compressor 3 is connected to an input end of the separation tank 6 through a guide pipe, an air outlet pipe 10 is connected to a lower end of the separation tank 6, an input end of the air pump 4 is connected to an upper end of the separation tank 6 through a guide pipe, an output end of the air pump 4 is connected to an input end of the filter box 7 through a guide pipe, the output end of the filter box 7 is connected with the nitrogen tank 5 through a guide pipe, one side of the lower end of the nitrogen tank 5 is connected with a nitrogen output pipe 11, the middle part of the nitrogen output pipe 11 is provided with a valve 12, a water cooling pipe 13 is embedded in a back plate 26 of the casing 1, a circulating pump 14 is fixed on the inner wall of one side of the casing 1, a radiating pipe 15 is fixed on the outer wall of one side of the casing 1, one end of the water cooling pipe 13 is connected with the input end of the circulating pump 14, the other end of the water cooling pipe 13 is connected with one end of the radiating pipe 15, the other end of the radiating pipe 15 is connected with the output end of the circulating pump 14, and air entering the air compressor 3 can be filtered, so that particle type impurities in the air are filtered, and the nitrogen entering the nitrogen tank 5 can be filtered again, thereby the purity of the nitrogen can be greatly increased, and the inside of the casing 1 can be radiated in a water cooling mode, thereby effectively dissipating heat from the inside of the casing 1.

In a further embodiment, universal wheels 16 are mounted under four corners of the housing 1, wherein the universal wheels 16 can facilitate the movement of the whole device.

In a further embodiment, the front surface of the casing 1 is provided with an access hole, a cover plate 17 is fixed outside the access hole through a plurality of screws, and the cover plate 17 can be opened to conveniently overhaul devices inside the casing 1 through the access hole.

In a further embodiment, manometer 18 is installed to nitrogen gas jar 5 one side, just manometer 18's gauge outfit sets up casing 1 is outside, and wherein, manometer 18 can be used for detecting the atmospheric pressure of nitrogen gas jar 5 to can be convenient for audio-visually learn the nitrogen gas volume in the nitrogen gas jar 5.

In a further embodiment, the filter assembly comprises a filter screen 19, an upper clamping groove 20 and a lower clamping groove 21, the upper end of the filter box 7 is fixed with a sealing cover 22 through a plurality of screws, a sealing gasket 23 is fixed below the sealing cover 22, two upper clamping grooves 20 are fixed at the lower end of the sealing gasket 23, two lower clamping grooves 21 are fixed at the bottom end of the filter box 7, a filter screen 19 is arranged between the upper clamping groove 20 and the corresponding lower clamping groove 21, the nitrogen entering the nitrogen tank 5 can be filtered by the filter screen 19, and can be convenient to clean the inside of the filter box 7 by opening the sealing cover 22, and can disassemble the filter screen 19 for replacement or cleaning, which is more convenient, among them, the packing 23 can increase the sealability between the sealing cover 22 and the filter tank 7, so that leakage of nitrogen gas can be reduced.

In a further embodiment, casing 1 is close to one side outer wall of cooling tube 15 is fixed with out wind box 24, just it sets up to go out wind box 24 the cooling tube 15 top, a plurality of exhaust vents 25 have been seted up to play wind box 24 lower extreme, air discharge pipe 10 keeps away from the one end of knockout drum 6 with it connects to go out wind box 24, can utilize the air of air discharge pipe 10 exhaust to drive near the air flow of cooling tube 15 to increase cooling tube 15's that can be great radiating efficiency, thereby can recycle exhaust air, it is more energy-concerving and environment-protective.

For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.

In practical application, the air compressor 3 filters external air through the screen cover 9 and then sends the air into the separation tank 6, nitrogen in the air is separated under the pressure of the air, then the air is filtered through the carbon molecular sieve in the separation tank 6, the nitrogen is remained on the carbon molecular sieve, other air is discharged through the air discharge pipe 10, then the nitrogen in the separation tank 6 is pumped out through the air pump 4 and sent into the filter box 7 to be screened through the filter screen 19 and then enter the nitrogen tank 5, the air entering the air compressor 3 can be filtered, so that particle type impurities in the air are filtered, and the nitrogen entering the nitrogen tank 5 can be filtered again, so that the purity of the nitrogen can be greatly increased, and the heat conducting liquid in the water cooling pipe 13 can absorb the heat in the casing 1 by filling the water cooling pipe 13 and the heat radiating pipe 15 with the heat conducting liquid, under the effect of circulating pump 14, absorb thermal heat conduction liquid and dispel the heat in flowing into cooling tube 15, and can utilize air discharge pipe 10 exhaust air to drive near cooling tube 15 air flow, thereby the radiating efficiency of increase cooling tube 15 that can be great, thereby can recycle exhaust air, it is more energy-concerving and environment-protective, heat conduction liquid after the heat dissipation continues to flow into the interior absorption heat of water-cooling pipe 13, thereby can accomplish the heat dissipation to casing 1 inside, make nitrogen generator can normally work, difficult emergence trouble, thereby can increase nitrogen generator's life, and, can open apron 17 and overhaul the convenient device to casing 1 inside through the access hole.

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

Claims (6)

1. The small-flow nitrogen generator with the heat dissipation structure is characterized by comprising a shell (1), wherein the inner wall of one side of the shell (1) is fixedly provided with two mounting plates (2), an air compressor (3) and an air pump (4) are respectively fixed on the mounting plates (2), the bottom end of the shell (1) is fixedly provided with a nitrogen tank (5) and a separation tank (6), the nitrogen tank (5) is provided with a filter box (7), the filter box (7) is internally provided with a filter assembly, the input end of the air compressor (3) is connected with an air inlet pipe (8), the air inlet pipe (8) is far away from one end of the air compressor (3) and is in threaded connection with a screen cover (9), the output end of the air compressor (3) is connected with the input end of the separation tank (6) through a guide pipe, the lower end of the separation tank (6) is connected with an air discharge pipe (10), the input end of the air pump (4) is connected with the upper end of the separating tank (6) through a conduit, the output end of the air pump (4) is connected with the input end of the filter box (7) through a conduit, the output end of the filter box (7) is connected with the nitrogen tank (5) through a guide pipe, one side of the lower end of the nitrogen tank (5) is connected with a nitrogen output pipe (11), a valve (12) is arranged in the middle of the nitrogen output pipe (11), a water cooling pipe (13) is embedded in a back plate (26) of the casing (1), a circulating pump (14) is fixed on the inner wall of one side of the machine shell (1), a radiating pipe (15) is fixed on the outer wall of one side of the machine shell (1), one end of the water-cooling pipe (13) is connected with the input end of the circulating pump (14), the other end of the water cooling pipe (13) is connected with one end of the radiating pipe (15), the other end of the radiating pipe (15) is connected with the output end of the circulating pump (14).

2. The small flow nitrogen generator with heat dissipation structure as claimed in claim 1, wherein universal wheels (16) are installed under four corners of the cabinet (1).

3. The small-flow nitrogen generator with the heat dissipation structure as recited in claim 1, wherein the front surface of the housing (1) is opened with an access opening, and a cover plate (17) is fixed outside the access opening by a plurality of screws.

4. The small flow nitrogen generator with heat dissipation structure as claimed in claim 1, wherein a pressure gauge (18) is installed at one side of the nitrogen tank (5), and a head of the pressure gauge (18) is disposed outside the cabinet (1).

5. The small-flow nitrogen generator with the heat dissipation structure as recited in claim 1, wherein the filtering assembly comprises a filtering net (19), an upper clamping groove (20) and a lower clamping groove (21), the upper end of the filtering box (7) is fixed with a sealing cover (22) through a plurality of screws, a sealing gasket (23) is fixed under the sealing cover (22), two upper clamping grooves (20) are fixed at the lower end of the sealing gasket (23), two lower clamping grooves (21) are fixed at the bottom end of the filtering box (7), and the filtering net (19) is arranged between the upper clamping groove (20) and the corresponding lower clamping groove (21).

6. The small flow nitrogen generator with heat dissipation structure as claimed in claim 1, wherein an air outlet box (24) is fixed to an outer wall of one side of said casing (1) close to said heat dissipation pipe (15), said air outlet box (24) is disposed above said heat dissipation pipe (15), a plurality of air outlet holes (25) are opened at a lower end of said air outlet box (24), and one end of said air outlet pipe (10) far away from said separation tank (6) is connected to said air outlet box (24).

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