CN111847399B - Efficient nitrogen purification device and purification process - Google Patents
Efficient nitrogen purification device and purification process Download PDFInfo
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- CN111847399B CN111847399B CN202010874528.7A CN202010874528A CN111847399B CN 111847399 B CN111847399 B CN 111847399B CN 202010874528 A CN202010874528 A CN 202010874528A CN 111847399 B CN111847399 B CN 111847399B
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 214
- 238000000746 purification Methods 0.000 title claims abstract description 187
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 84
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 105
- 238000010438 heat treatment Methods 0.000 claims abstract description 98
- 239000002808 molecular sieve Substances 0.000 claims abstract description 93
- 238000002955 isolation Methods 0.000 claims abstract description 57
- 239000001257 hydrogen Substances 0.000 claims abstract description 31
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 31
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- 230000005484 gravity Effects 0.000 claims description 14
- 239000012535 impurity Substances 0.000 claims description 11
- 238000006555 catalytic reaction Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 16
- 230000003197 catalytic effect Effects 0.000 abstract description 10
- 238000011403 purification operation Methods 0.000 abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 238000000926 separation method Methods 0.000 description 5
- 238000006392 deoxygenation reaction Methods 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/04—Purification or separation of nitrogen
- C01B21/0405—Purification or separation processes
- C01B21/0433—Physical processing only
- C01B21/045—Physical processing only by adsorption in solids
- C01B21/0455—Physical processing only by adsorption in solids characterised by the adsorbent
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/04—Purification or separation of nitrogen
- C01B21/0405—Purification or separation processes
- C01B21/0433—Physical processing only
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention discloses an efficient nitrogen purification device and a purification process, and the efficient purification operation of nitrogen can be realized by matching the third molecular sieve, the first molecular sieve, the second molecular sieve and the isolation seat; conveying nitrogen into a purification outer cylinder, wherein the nitrogen enters a second purification inner cylinder, a heating holder and a first purification inner cylinder through a first connecting pipe, and conveying quantitative hydrogen into the purification outer cylinder through a second guide pipe by using a flowmeter; the nitrogen and the hydrogen enter the second purification inner cylinder, and react with the hydrogen through the deoxidation catalytic block when passing through the third molecular sieve, the first molecular sieve and the second molecular sieve in sequence; the effect of nitrogen purification can be effectively improved by the matched use of the first purification inner cylinder, the heating holder and the second purification inner cylinder; the invention can solve the problems that the nitrogen cannot be efficiently purified and the nitrogen purification effect is poor.
Description
Technical Field
The invention relates to the technical field of gas purification, in particular to a high-efficiency nitrogen purification device and a high-efficiency nitrogen purification process.
Background
The nitrogen is colorless and tasteless, has inactive chemical property and can react with the hydrogen under the conditions of high temperature, high pressure and catalyst to generate ammonia gas; can be combined with oxygen to generate nitric oxide under the condition of discharge; even active metals such as Ca, Mg, Sr and Ba can react with them only when heated. This high chemical stability of nitrogen is related to its molecular structure; nitrogen purification refers to the physical or chemical removal of impurities from nitrogen, and in industry nitrogen purification mainly removes oxygen from nitrogen to improve the purity of nitrogen.
Patent publication No. CN103910342A discloses a nitrogen purification apparatus. The mixer is provided with a hydrogen inlet and a common oxygen inlet, the outlet of the mixer is hermetically communicated with the inlet A of the heat exchanger, the outlet B of the heat exchanger communicated with the inlet A of the heat exchanger is hermetically communicated with the inlet of the catalytic deoxygenator, the outlet of the catalytic deoxygenator is hermetically communicated with the inlet of the adsorption deoxygenator, the outlet of the adsorption deoxygenator is hermetically communicated with the inlet C of the heat exchanger, the outlet D of the heat exchanger communicated with the inlet C of the heat exchanger is hermetically communicated with the inlet C of the cooler, the outlet D of the cooler communicated with the inlet C of the cooler is hermetically communicated with the inlet of the steam-water separator, the gas outlet of the steam-water separator is hermetically communicated with the inlet of the three-tower temperature-variable adsorption drying device, and the three-tower temperature-variable adsorption drying device is provided with a high-purity nitrogen outlet; the cooler is provided with a water inlet A and a water outlet B communicated with the inlet A of the cooler, and the inlet A and the outlet B of the cooler are respectively connected with an inlet and an outlet of circulating cooling water; the steam-water separator is provided with a water outlet. The existing defects include: there are problems that the purification operation of nitrogen gas cannot be efficiently performed and the effect of nitrogen gas purification is not good.
Disclosure of Invention
The invention aims to provide a high-efficiency nitrogen purification device and a purification process;
the problem solved by the disclosed aspect of the invention is: how to solve the problem that the nitrogen cannot be purified efficiently; the third molecular sieve, the first molecular sieve, the second molecular sieve and the isolation seat are matched for use, so that the nitrogen can be efficiently purified; conveying nitrogen into a purification outer cylinder, wherein the nitrogen enters a second purification inner cylinder, a heating holder and a first purification inner cylinder through a first connecting pipe, and conveying quantitative hydrogen into the purification outer cylinder through a second guide pipe by using a flowmeter; nitrogen and hydrogen enter the second purification inner cylinder, and react with the hydrogen through the deoxidation catalytic block when passing through the third molecular sieve, the first molecular sieve and the second molecular sieve in sequence, generated water drops enter the first conveying pipe through the self gravity, enter the second conveying pipe through the first conveying pipe, and pass through the isolation seat; the water drops enter the sieve column through the first isolation sieve plate, sequentially pass through the first sieve bars and the second sieve bars under the action of self gravity, and enter the containing cavity through the second isolation sieve plate, so that the separation of oxygen mixed in nitrogen can be realized, the effect of improving the purification of the nitrogen is achieved, and the problem that the nitrogen cannot be efficiently purified in the existing scheme is solved;
the problem solved by the other aspect of the invention is that: how to solve the problem of poor nitrogen purification effect; the effect of nitrogen purification can be effectively improved by the matched use of the first purification inner cylinder, the heating holder and the second purification inner cylinder; the nitrogen gas passes through the second purification inner cylinder and then enters the heating holder, the nitrogen gas is transported through a third connecting pipe, the nitrogen gas is heated by the first heating seat and the second heating seat, so that trace water vapor mixed in the nitrogen gas is evaporated, and impurities in the nitrogen gas are screened through a screen; nitrogen gas enters into first purification inner tube through heating holder to the operation of repetition in second purification inner tube can effectively improve the treatment effect to the steam and the impurity in the nitrogen gas, has overcome current equipment and can only carry out single purification, filtration and separation operation, leads to the not good problem of effect of nitrogen gas purification.
The purpose of the invention can be realized by the following technical scheme:
a high-efficiency nitrogen purification device, which comprises a purification outer cylinder, an isolation cover, a first purification inner cylinder, a second purification inner cylinder and a heating holder, the isolation cover is fixedly arranged on the inner surface of the purification outer cylinder, the first purification inner cylinder, the second purification inner cylinder and the heating holder are all arranged in the isolation cover, the first purifying inner cylinder and the second purifying inner cylinder are internally provided with a first molecular sieve, a second molecular sieve, a third molecular sieve and a bottom plate, the first molecular sieve is located between the second molecular sieve and the third molecular sieve, the second molecular sieve is located on one side of the third molecular sieve, the bottom plate is positioned at the lower ends of the first molecular sieve, the second molecular sieve and the third molecular sieve, both sides of the third molecular sieve are fixedly provided with third clamping plates, a deoxidation catalysis block is fixedly arranged in the third molecular sieve, and the third clamping plate is provided with an air hole;
the utility model discloses a novel filter screen, including first molecular sieve, second molecular sieve, first conveyer pipe, second conveyer pipe, first conveyer pipe, second conveyer pipe, first conveyer pipe and second conveyer pipe link up mutually.
As a further improvement of the invention: the upper end of the isolation seat is fixedly provided with a first isolation sieve plate, the lower end of the isolation seat is fixedly provided with a second isolation sieve plate, a plurality of sieve columns are fixedly arranged in the isolation seat, a plurality of first sieve bars and a plurality of second sieve bars are fixedly arranged on the inner surfaces of the sieve columns, the first sieve bars and the second sieve bars are distributed on the inner surfaces of the sieve columns in a cross arrangement mode, the first sieve bars and the second sieve bars are fixedly connected with the sieve columns in a bonding mode, supporting transverse plates are fixedly arranged on the positions, close to the front end and the rear end, of the inner surface of the purification outer cylinder, a first connecting base is fixedly arranged at the upper ends of the supporting transverse plates, one side of the first purification inner cylinder is connected with a first connecting pipe, and the other side of the first purification inner cylinder is connected with a second connecting pipe.
As a further improvement of the invention: the utility model discloses a heating device, including heating holder, first heating seat, second heating seat, third connecting pipe, heating holder, first heating seat, second heating seat, screen cloth, the equal fixed mounting in upper and lower end of heating holder has the second division board, the equal fixed mounting in both sides of heating holder has the third division board, the inside of heating holder is provided with first heating seat, second heating seat and third connecting pipe, the third connecting pipe is located the position between first heating seat and the second heating seat, first heating seat is located one side of second heating seat, the internal surface butt of third connecting pipe is installed and is fixed the clamp ring, the internal surface fixed mounting of fixed clamp ring has the screen cloth, all be provided with the heating pipe in first heating seat and the second heating seat, the internal surface of fixed clamp ring is provided with the guide hole.
As a further improvement of the invention: the quantity of purification urceolus is four, one side fixed mounting of purification urceolus has first go-between, the opposite side fixed mounting of purification urceolus has the second go-between, the surface of purification urceolus is close to the fixed position of one side and installs solid fixed ring, the one end that purification urceolus was kept away from to first go-between is connected with first division board, mount and spliced pole, the mount rotates and installs the surface of keeping away from first go-between at first division board, the spliced pole runs through in the inside of first division board to first go-between, two first splint and second splint are installed to solid fixed ring's upper end, first splint are located one side of second splint.
As a further improvement of the invention: the purification outer barrel is characterized in that a first guide pipe is fixedly connected to one side, close to the first connecting ring, of the lower end of the purification outer barrel, a second guide pipe is fixedly connected to one side, close to the second connecting ring, of the lower end of the purification outer barrel, supporting bases are fixedly mounted at the lower ends of the four purification outer barrels, and a flowmeter is connected to the position, close to the upper side, of the outer surface of the second guide pipe.
As a further improvement of the invention: the front end fixed mounting who supports the diaphragm has a plurality of to support the concave plate, the upper end fixed mounting of first connection base has the first support column of a plurality of, a plurality of first support column runs through to the surface of cage, first purification inner tube, second purification inner tube and heating holder all are located the upper end that supports the diaphragm and are close to middle position.
As a further improvement of the invention: the lower ends of the first purifying inner cylinder and the second purifying inner cylinder are fixedly provided with a second connecting base, and the lower end of the second connecting base is fixedly provided with a plurality of second supporting columns.
A purification process for a high efficiency nitrogen purification plant, the purification process comprising the steps of:
the method comprises the following steps: conveying nitrogen into a purification outer cylinder, wherein the nitrogen enters a second purification inner cylinder, a heating holder and a first purification inner cylinder through a first connecting pipe, and conveying quantitative hydrogen into the purification outer cylinder through a second guide pipe by using a flowmeter;
step two: nitrogen and hydrogen enter the second purification inner cylinder, and react with the hydrogen through the deoxidation catalytic block when passing through the third molecular sieve, the first molecular sieve and the second molecular sieve in sequence, generated water drops enter the first conveying pipe through the self gravity, enter the second conveying pipe through the first conveying pipe, and pass through the isolation seat;
step three: the water drops enter the sieve column through the first isolation sieve plate, sequentially pass through the first sieve bars and the second sieve bars under the action of self gravity, and enter the containing cavity through the second isolation sieve plate;
step four: the nitrogen gas passes through the second purification inner cylinder and then enters the heating holder, the nitrogen gas is transported through a third connecting pipe, the nitrogen gas is heated by the first heating seat and the second heating seat, so that trace water vapor mixed in the nitrogen gas is evaporated, and impurities in the nitrogen gas are screened through a screen;
step five: and introducing nitrogen into the first purifying inner cylinder through the heating holder, and repeating the operation in the second purifying inner cylinder.
One beneficial effect brought by one aspect of the invention is as follows:
the third molecular sieve, the first molecular sieve, the second molecular sieve and the isolation seat are matched for use, so that the nitrogen can be efficiently purified; conveying nitrogen into a purification outer cylinder, wherein the nitrogen enters a second purification inner cylinder, a heating holder and a first purification inner cylinder through a first connecting pipe, and conveying quantitative hydrogen into the purification outer cylinder through a second guide pipe by using a flowmeter; nitrogen and hydrogen enter the second purification inner cylinder, and react with the hydrogen through the deoxidation catalytic block when passing through the third molecular sieve, the first molecular sieve and the second molecular sieve in sequence, generated water drops enter the first conveying pipe through the self gravity, enter the second conveying pipe through the first conveying pipe, and pass through the isolation seat; the water droplet passes through first isolation sieve and gets into to the pillar in, passes first grating and second grating under the action of gravity of self in proper order to keep apart the sieve through the second and get into to accomodating the chamber, can realize separating the oxygen of mixing in the nitrogen gas, reach the effect that improves nitrogen gas purification, solved can not the efficient carry out the problem of purification operation with nitrogen gas among the current scheme.
The invention also discloses another aspect brings the following beneficial effects:
the effect of nitrogen purification can be effectively improved by the matched use of the first purification inner cylinder, the heating holder and the second purification inner cylinder; the nitrogen gas passes through the second purification inner cylinder and then enters the heating holder, the nitrogen gas is transported through a third connecting pipe, the nitrogen gas is heated by the first heating seat and the second heating seat, so that trace water vapor mixed in the nitrogen gas is evaporated, and impurities in the nitrogen gas are screened through a screen; nitrogen gas enters into first purification inner tube through heating holder to the operation of repetition in second purification inner tube can effectively improve the treatment effect to the steam and the impurity in the nitrogen gas, has overcome current equipment and can only carry out single purification, filtration and separation operation, leads to the not good problem of effect of nitrogen gas purification.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a perspective view of a high efficiency nitrogen purification apparatus according to the present invention;
FIG. 2 is a first internal structural view of a high efficiency nitrogen purification apparatus of the present invention;
FIG. 3 is a second internal structural view of a high efficiency nitrogen purification apparatus of the present invention;
FIG. 4 is a diagram of a connection structure between a first purification cartridge and a second purification cartridge according to the present invention;
FIG. 5 is a top view of the first purification cartridge of the present invention;
FIG. 6 is a sectional view showing the structure of the first purification cartridge of the present invention;
FIG. 7 is a sectional view of the spacer of the present invention;
FIG. 8 is a sectional view of the heating holder according to the present invention.
In the figure: 1. purifying the outer cylinder; 2. a fixing ring; 3. a first connecting ring; 4. a second connection ring; 5. a first splint; 6. a second splint; 7. a first conduit; 8. a second conduit; 9. a flow meter; 10. a support base; 11. a first separator plate; 12. a fixed mount; 13. connecting columns; 14. supporting the transverse plate; 15. a support concave plate; 16. an isolation cover; 17. a first support column; 18. a first connection base; 19. a first purification inner cylinder; 20. a second purification inner cylinder; 21. heating the holder; 22. a second connection base; 23. a second support column; 24. a first connecting pipe; 25. a second connecting pipe; 26. a first molecular sieve; 27. a second molecular sieve; 28. a third molecular sieve; 29. a third splint; 30. a deoxygenation catalytic block; 31. a base plate; 32. a receiving cavity; 33. a first delivery pipe; 34. a second delivery pipe; 35. an isolation seat; 36. a first isolation screen deck; 37. a second isolation screen deck; 38. a sieve column; 39. a first screen bar; 40. a second screen bar; 41. a second separator plate; 42. a third separator plate; 43. a first heating base; 44. a second heating base; 45. a third connecting pipe; 46. screening a screen; 47. and fixing the clamping ring.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 8, a high-efficiency nitrogen purification device includes a purification outer cylinder 1, an isolation cover 16, a first purification inner cylinder 19, a second purification inner cylinder 20, and a heating holder 21, wherein the isolation cover 16 is fixedly installed on an inner surface of the purification outer cylinder 1, the first purification inner cylinder 19, the second purification inner cylinder 20, and the heating holder 21 are all installed inside the isolation cover 16, a first molecular sieve 26, a second molecular sieve 27, a third molecular sieve 28, and a bottom plate 31 are installed inside the first purification inner cylinder 19 and the second purification inner cylinder 20, the first molecular sieve 26 is located between the second molecular sieve 27 and the third molecular sieve 28, the second molecular sieve 27 is located on one side of the third molecular sieve 28, the bottom plate 31 is located at a lower end of the first molecular sieve 26, the second molecular sieve 27, and the third molecular sieve 28, and third clamping plates 29 are fixedly installed on two sides of the third molecular sieve 28, a deoxidation catalysis block 30 is fixedly arranged in the third molecular sieve 28, and an air hole is formed in the third clamping plate 29;
the inside position that is close to the below of third molecular sieve 28 is provided with accomodates the chamber 32, install two sets of first conveyer pipes 33 between the lower extreme of second molecular sieve 27 and third molecular sieve 28 and first molecular sieve 26, the lower extreme of first molecular sieve 26 is connected with second conveyer pipe 34, the internal surface fixed mounting of second conveyer pipe 34 has separation seat 35, the lower extreme of second conveyer pipe 34 runs through to accomodating the chamber 32 in, two sets of first conveyer pipe 33 link up mutually with second conveyer pipe 34.
The upper end of the isolation seat 35 is fixedly provided with a first isolation sieve plate 36, the lower end of the isolation seat 35 is fixedly provided with a second isolation sieve plate 37, the isolation seat 35 is fixedly provided with a plurality of sieve columns 38, the inner surfaces of the sieve columns 38 are fixedly provided with a plurality of first sieve bars 39 and second sieve bars 40, the first sieve bars 39 and the second sieve bars 40 are distributed on the inner surfaces of the sieve columns 38 in a cross arrangement manner, the first sieve bars 39 and the second sieve bars 40 are fixedly connected with the sieve columns 38 in a gluing manner, the inner surfaces of the purification outer cylinder 1 near the front end and the rear end are fixedly provided with a support transverse plate 14, the upper end of the support transverse plate 14 is fixedly provided with a first connection base 18, one side of the first purification inner cylinder 19 is connected with a first connection pipe 24, and the other side of the first purification inner cylinder 19 is connected with a second connection pipe 25.
The equal fixed mounting in upper and lower end of heating holder 21 has second division board 41, the equal fixed mounting in both sides of heating holder 21 has third division board 42, the inside of heating holder 21 is provided with first heating seat 43, second heating seat 44 and third connecting pipe 45, third connecting pipe 45 is located the position between first heating seat 43 and the second heating seat 44, first heating seat 43 is located one side of second heating seat 44, fixed clamp ring 47 is installed to the internal surface butt of third connecting pipe 45, the internal surface fixed mounting of fixed clamp ring 47 has screen cloth 46, all be provided with the heating pipe in first heating seat 43 and the second heating seat 44, the internal surface of fixed clamp ring 47 is provided with the guide hole.
The quantity of purification urceolus 1 is four, one side fixed mounting of purification urceolus 1 has first go-between 3, the opposite side fixed mounting of purification urceolus 1 has second go-between 4, the position fixed mounting that the surface of purification urceolus 1 is close to one side has solid fixed ring 2, the one end that purification urceolus 1 was kept away from to first go-between 3 is connected with first division board 11, mount 12 and spliced pole 13, mount 12 rotates and installs the surface of keeping away from first go-between 3 at first division board 11, spliced pole 13 runs through in the inside of first division board 11 to first go-between 3, two gu first splint 5 and second splint 6 are installed to fixed ring 2's upper end, first splint 5 is located one side of second splint 6.
The purification outer barrel comprises a purification outer barrel 1, a first guide pipe 7, a second guide pipe 8, a support base 10 and a flowmeter 9, wherein the first guide pipe 7 is fixedly connected to one side, close to a first connecting ring 3, of the lower end of the purification outer barrel 1, the second guide pipe 8 is fixedly connected to one side, close to a second connecting ring 4, of the lower end of the purification outer barrel 1, the support base 10 is fixedly installed at the lower ends of the four purification outer barrels 1, and the flowmeter 9 is connected to the position, close to the upper side, of the outer surface of the second guide pipe 8.
The lower ends of the first purifying inner cylinder 19 and the second purifying inner cylinder 20 are fixedly provided with a second connecting base 22, and the lower end of the second connecting base 22 is fixedly provided with a plurality of second supporting columns 23.
The purification process comprises the following steps:
the method comprises the following steps: conveying nitrogen into the purification outer cylinder 1, wherein the nitrogen enters the second purification inner cylinder 20, the heating holder 21 and the first purification inner cylinder 19 through the first connecting pipe 24, and conveying quantitative hydrogen into the purification outer cylinder 1 through the second conduit 8 by using the flowmeter 9;
step two: the nitrogen and the hydrogen enter the second purification inner cylinder 20, and when sequentially pass through the third molecular sieve 28, the first molecular sieve 26 and the second molecular sieve 27, the nitrogen and the hydrogen react with the hydrogen through the deoxygenation catalytic block 30, generated water drops enter the first conveying pipe 33 through the self gravity, enter the second conveying pipe 34 through the first conveying pipe 33, and pass through the isolation seat 35;
step three: the water drops enter the sieve column 38 through the first isolation sieve plate 36, sequentially pass through the first sieve bars 39 and the second sieve bars 40 under the action of self gravity, and enter the accommodating cavity 32 through the second isolation sieve plate 37;
step four: the nitrogen gas passes through the second purification inner cylinder 20 and then enters the heating holder 21, the nitrogen gas is transported through a third connecting pipe 45, the nitrogen gas is heated by the first heating seat 43 and the second heating seat 44, so that trace water vapor mixed in the nitrogen gas is evaporated, and impurities in the nitrogen gas are screened through the screen 46;
step five: the nitrogen gas is introduced into the first purification inner cylinder 19 through the heating holder 21, and the operation in the second purification inner cylinder 20 is repeated.
The working principle of the embodiment of the invention is as follows: conveying nitrogen into the purification outer cylinder 1, wherein the nitrogen enters the second purification inner cylinder 20, the heating holder 21 and the first purification inner cylinder 19 through the first connecting pipe 24, and conveying quantitative hydrogen into the purification outer cylinder 1 through the second conduit 8 by using the flowmeter 9; the flow meter 9 is used for controlling the input amount of hydrogen, the first purification inner cylinder 19 and the second purification inner cylinder 20 both play a role in purifying nitrogen, and the heating holder 21 plays a role in screening and heating;
the nitrogen and the hydrogen enter the second purification inner cylinder 20, and when sequentially pass through the third molecular sieve 28, the first molecular sieve 26 and the second molecular sieve 27, the nitrogen and the hydrogen react with the hydrogen through the deoxygenation catalytic block 30, generated water drops enter the first conveying pipe 33 through the self gravity, enter the second conveying pipe 34 through the first conveying pipe 33, and pass through the isolation seat 35;
the water drops enter the sieve column 38 through the first isolation sieve plate 36, sequentially pass through the first sieve bars 39 and the second sieve bars 40 under the action of self gravity, and enter the accommodating cavity 32 through the second isolation sieve plate 37; wherein, the first screen bars 39 and the second screen bars 40 can isolate and transport the water droplets, and the first screen bars 39 and the second screen bars 40 cooperate with the first isolation screen plate 36 to isolate the water droplets from the third molecular sieve 28, the first molecular sieve 26 and the second molecular sieve 27;
the nitrogen gas passes through the second purification inner cylinder 20 and then enters the heating holder 21, the nitrogen gas is transported through a third connecting pipe 45, the nitrogen gas is heated by the first heating seat 43 and the second heating seat 44, so that trace water vapor mixed in the nitrogen gas is evaporated, and impurities in the nitrogen gas are screened through the screen 46;
nitrogen enters the first purifying inner cylinder 19 through the heating holder 21, and the operation in the second purifying inner cylinder 20 is repeated;
compared with the prior art, on one hand, the nitrogen gas purification device disclosed by the invention can realize high-efficiency purification operation of nitrogen gas by matching the third molecular sieve 28, the first molecular sieve 26, the second molecular sieve 27 and the isolation seat 35; conveying nitrogen into the purification outer cylinder 1, wherein the nitrogen enters the second purification inner cylinder 20, the heating holder 21 and the first purification inner cylinder 19 through the first connecting pipe 24, and conveying quantitative hydrogen into the purification outer cylinder 1 through the second conduit 8 by using the flowmeter 9; the nitrogen and the hydrogen enter the second purification inner cylinder 20, and when sequentially pass through the third molecular sieve 28, the first molecular sieve 26 and the second molecular sieve 27, the nitrogen and the hydrogen react with the hydrogen through the deoxygenation catalytic block 30, generated water drops enter the first conveying pipe 33 through the self gravity, enter the second conveying pipe 34 through the first conveying pipe 33, and pass through the isolation seat 35; the water drops enter the sieve column 38 through the first isolation sieve plate 36, sequentially pass through the first sieve bars 39 and the second sieve bars 40 under the action of self gravity, and enter the containing cavity 32 through the second isolation sieve plate 37, so that the oxygen mixed in the nitrogen can be separated, the effect of improving nitrogen purification is achieved, and the problem that the nitrogen cannot be efficiently purified in the existing scheme is solved;
on the other hand, the effect of nitrogen purification can be effectively improved by the matched use of the first purification inner cylinder 19, the heating holder 21 and the second purification inner cylinder 20; the nitrogen gas passes through the second purification inner cylinder 20 and then enters the heating holder 21, the nitrogen gas is transported through a third connecting pipe 45, the nitrogen gas is heated by the first heating seat 43 and the second heating seat 44, so that trace water vapor mixed in the nitrogen gas is evaporated, and impurities in the nitrogen gas are screened through the screen 46; nitrogen enters the first purification inner cylinder 19 through the heating holder 21 to the operation in the second purification inner cylinder 20 is repeated, the treatment effect of water vapor and impurities in nitrogen can be effectively improved, and the problem that the effect of nitrogen purification is poor because the existing equipment can only carry out single purification, filtration and separation operations is solved.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. The utility model provides a high-efficient nitrogen gas purification device, characterized in that, including purification urceolus (1), cage (16), first purification inner tube (19), second purification inner tube (20) and heating holder (21), cage (16) fixed mounting is at the internal surface of purification urceolus (1), first purification inner tube (19), second purification inner tube (20) and heating holder (21) are all installed in the inside of cage (16), first molecular sieve (26), second molecular sieve (27), third molecular sieve (28) and bottom plate (31) are all installed to the inside of first purification inner tube (19) and second purification inner tube (20), first molecular sieve (26) are located the position between second molecular sieve (27) and third molecular sieve (28), bottom plate (31) are located the lower extreme of first molecular sieve (26), second molecular sieve (27) and third molecular sieve (28), both sides of the third molecular sieve (28) are fixedly provided with third clamping plates (29), the interior of the third molecular sieve (28) is fixedly provided with a deoxidation catalysis block (30), and the third clamping plates (29) are provided with air holes;
the utility model discloses a packing box, including first conveyer pipe (34), second conveyer pipe (35), first conveyer pipe (33) are connected with the lower extreme of second molecular sieve (27) and third molecular sieve (28), and the lower extreme of second molecular sieve (28) is provided with and accomodates chamber (32) near the position of below, install two sets of first conveyer pipe (33) between lower extreme and first molecular sieve (26) of second molecular sieve (27) and third molecular sieve (28), the lower extreme of first molecular sieve (26) is connected with second conveyer pipe (34), the internal surface fixed mounting of second conveyer pipe (34) has isolation seat (35), the lower extreme of second conveyer pipe (34) runs through to accomodating in chamber (32), and is two sets of first.
2. The efficient nitrogen purification device according to claim 1, wherein a first isolation sieve plate (36) is fixedly installed at the upper end of the isolation seat (35), a second isolation sieve plate (37) is fixedly installed at the lower end of the isolation seat (35), a plurality of sieve columns (38) are fixedly installed inside the isolation seat (35), a plurality of first sieve bars (39) and second sieve bars (40) are fixedly installed on the inner surfaces of the sieve columns (38), a plurality of first sieve bars (39) and second sieve bars (40) are distributed on the inner surfaces of the sieve columns (38) in a cross arrangement manner, the first sieve bars (39) and the second sieve bars (40) are fixedly bonded with the sieve columns (38), a support transverse plate (14) is fixedly installed at the positions, close to the front end and the rear end, of the inner surface of the purification outer cylinder (1), and a first connection base (18) is fixedly installed at the upper end of the support transverse plate (14), one side of the first purifying inner cylinder (19) is connected with a first connecting pipe (24), and the other side of the first purifying inner cylinder (19) is connected with a second connecting pipe (25).
3. The efficient nitrogen purification device according to claim 2, wherein the upper and lower ends of the heating holder (21) are fixedly provided with second isolation plates (41), the two sides of the heating holder (21) are fixedly provided with third isolation plates (42), the heating holder (21) is internally provided with a first heating seat (43), a second heating seat (44) and a third connecting pipe (45), the third connecting pipe (45) is positioned between the first heating seat (43) and the second heating seat (44), the first heating seat (43) is positioned on one side of the second heating seat (44), the inner surface of the third connecting pipe (45) is provided with a fixing clamp ring (47) in an abutting manner, the inner surface of the fixing clamp ring (47) is fixedly provided with a screen (46), and heating pipes are arranged in the first heating seat (43) and the second heating seat (44), the inner surface of the fixed clamping ring (47) is provided with a guide hole.
4. The efficient nitrogen purification device according to claim 3, wherein the number of the purification outer cylinder (1) is four, a first connection ring (3) is fixedly installed on one side of the purification outer cylinder (1), a second connection ring (4) is fixedly installed on the other side of the purification outer cylinder (1), a fixing ring (2) is fixedly installed on the outer surface of the purification outer cylinder (1) close to one side, a first isolation plate (11), a fixing frame (12) and a connection column (13) are connected to one end, far away from the purification outer cylinder (1), of the first connection ring (3), the fixing frame (12) is rotatably installed on the outer surface, far away from the first connection ring (3), of the first isolation plate (11), the connection column (13) penetrates through the inside of the first isolation plate (11) to the first connection ring (3), a first clamping plate (5) and a second clamping plate (6) are installed at the upper ends of the two fixing rings (2), the first clamping plate (5) is positioned on one side of the second clamping plate (6).
5. The high-efficiency nitrogen purification device as claimed in claim 4, wherein a first conduit (7) is fixedly connected to one side of the lower end of the purification outer cylinder (1) close to the first connecting ring (3), a second conduit (8) is fixedly connected to one side of the lower end of the purification outer cylinder (1) close to the second connecting ring (4), a support base (10) is fixedly installed at each of the lower ends of the four purification outer cylinders (1), and a flow meter (9) is connected to a position on the outer surface of the second conduit (8) close to the upper side.
6. The efficient nitrogen purification device according to claim 5, wherein a plurality of supporting concave plates (15) are fixedly mounted at the front ends of the supporting transverse plates (14), a plurality of first supporting columns (17) are fixedly mounted at the upper ends of the first connecting bases (18), the first supporting columns (17) penetrate through the outer surface of the isolation hood (16), and the first purification inner cylinder (19), the second purification inner cylinder (20) and the heating holder (21) are located at positions close to the middle of the upper ends of the supporting transverse plates (14).
7. The efficient nitrogen purification device as recited in claim 6, wherein the lower ends of the first purification inner cylinder (19) and the second purification inner cylinder (20) are fixedly provided with a second connection base (22), and the lower end of the second connection base (22) is fixedly provided with a plurality of second support columns (23).
8. A purification process of a high efficiency nitrogen gas purification device according to claim 7, characterized in that the purification process comprises the steps of:
the method comprises the following steps: conveying nitrogen into the purification outer cylinder (1), wherein the nitrogen enters into the second purification inner cylinder (20), the heating holder (21) and the first purification inner cylinder (19) through the first connecting pipe (24), and conveying quantitative hydrogen into the purification outer cylinder (1) through the second conduit (8) by utilizing the flowmeter (9);
step two: the nitrogen and the hydrogen enter the second purification inner cylinder (20), and when sequentially pass through the third molecular sieve (28), the first molecular sieve (26) and the second molecular sieve (27), the nitrogen and the hydrogen react with the hydrogen through the deoxidation catalysis block (30), generated water drops enter the first conveying pipe (33) through the self gravity, enter the second conveying pipe (34) through the first conveying pipe (33), and pass through the isolation seat (35);
step three: the water drops enter the sieve column (38) through the first isolation sieve plate (36), sequentially pass through the first sieve bars (39) and the second sieve bars (40) under the action of self gravity, and enter the containing cavity (32) through the second isolation sieve plate (37);
step four: the nitrogen passes through the second purification inner cylinder (20) and then enters the heating holder (21), the nitrogen is transported through a third connecting pipe (45), the first heating seat (43) and the second heating seat (44) are utilized to heat the nitrogen, so that trace water vapor mixed in the nitrogen is evaporated, and impurities in the nitrogen are screened through a screen (46);
step five: nitrogen enters the first purification inner cylinder (19) through the heating holder (21), and the operation in the second purification inner cylinder (20) is repeated.
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| CN104528665A (en) * | 2014-12-22 | 2015-04-22 | 本钢板材股份有限公司 | Method of purifying nitrogen |
| CN204824171U (en) * | 2015-05-29 | 2015-12-02 | 无锡市中瑞空分设备有限公司 | Automatic hydrogenation purification device of nitrogen gas |
| WO2018151905A1 (en) * | 2017-02-15 | 2018-08-23 | Exxonmobil Research And Engineering Company | Fast cycle gas phase simulated moving bed apparatus and process |
| CN109775671A (en) * | 2019-03-18 | 2019-05-21 | 大连华邦化学有限公司 | A kind of hyperpure gas purification system and technique based on room temperature absorbing process |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104528665A (en) * | 2014-12-22 | 2015-04-22 | 本钢板材股份有限公司 | Method of purifying nitrogen |
| CN204824171U (en) * | 2015-05-29 | 2015-12-02 | 无锡市中瑞空分设备有限公司 | Automatic hydrogenation purification device of nitrogen gas |
| WO2018151905A1 (en) * | 2017-02-15 | 2018-08-23 | Exxonmobil Research And Engineering Company | Fast cycle gas phase simulated moving bed apparatus and process |
| CN109775671A (en) * | 2019-03-18 | 2019-05-21 | 大连华邦化学有限公司 | A kind of hyperpure gas purification system and technique based on room temperature absorbing process |
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