CN220931512U - Air purification device for circulating nitrogen to prepare liquid oxygen - Google Patents
Air purification device for circulating nitrogen to prepare liquid oxygen Download PDFInfo
- Publication number
- CN220931512U CN220931512U CN202322493753.8U CN202322493753U CN220931512U CN 220931512 U CN220931512 U CN 220931512U CN 202322493753 U CN202322493753 U CN 202322493753U CN 220931512 U CN220931512 U CN 220931512U
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- China
- Prior art keywords
- purification device
- air purification
- liquid oxygen
- fixed mounting
- circulating nitrogen
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 238000004887 air purification Methods 0.000 title claims abstract description 53
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 36
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 238000001914 filtration Methods 0.000 claims abstract description 23
- 238000002360 preparation method Methods 0.000 claims abstract description 12
- 241000220317 Rosa Species 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 69
- 239000007789 gas Substances 0.000 claims description 6
- 230000008929 regeneration Effects 0.000 claims description 4
- 238000011069 regeneration method Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims 3
- 239000000428 dust Substances 0.000 abstract description 7
- 230000008859 change Effects 0.000 abstract description 4
- 241000255925 Diptera Species 0.000 abstract description 2
- 239000000498 cooling water Substances 0.000 description 11
- 238000001816 cooling Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Separation By Low-Temperature Treatments (AREA)
Abstract
The utility model discloses an air purification device for preparing liquid oxygen from circulating nitrogen, which relates to the technical field of circulating nitrogen preparation and comprises the following components: the heat exchange tube, the both sides fixed mounting of precooling mechanism have circulation mechanism, the centre fixed mounting of heat exchange tube has main part mechanism, the top one side fixed mounting of precooling mechanism has filtering mechanism. This air purification device for circulating nitrogen preparation liquid oxygen carries out preliminary filtration through the inside filter screen of installation piece to outside entering, thereby prevent that mosquito and dust from getting into, thereby can take off the installation piece so that clear up the filter screen through swing joint between installation piece and the rose box, carries out secondary filtration to the air through the inside filter of fixed plate, when needs change or wash the filter, thereby drive the fixed plate through pulling handle and follow rose box inside roll-off to take out the filter and wash or change, improved this air purification device for circulating nitrogen preparation liquid oxygen's practicality.
Description
Technical Field
The utility model relates to the technical field of preparation of circulating nitrogen, in particular to an air purification device for preparing liquid oxygen by using the circulating nitrogen.
Background
There has been a great increase in the demand for industrial gases such as oxygen in recent years. At present, the liquid oxygen is prepared by a nitrogen circulation flow full-liquid air separation technology, which is a mainstream liquid oxygen preparation mode at present, and the mode can obtain high-purity liquid oxygen. The core of the existing nitrogen circulation flow liquid air separation equipment is to utilize the difference of boiling points of all components in air to realize the separation of all components in an air mixture in a rectifying tower by adopting a low-temperature rectification separation process method, so that liquefied oxygen, liquefied nitrogen or other liquefied gas products are obtained by separation.
The existing references are: CN219308331U, a chinese patent of utility model, discloses an air purification device for preparing liquid oxygen in a nitrogen circulation process, comprising two air purifiers, which alternately purify air; the air purifier comprises a shell and a cooling water jacket, wherein the cooling water jacket is sleeved on the outer side of the shell, and a cooling water cavity is arranged between the cooling water jacket and the shell; the cooling water cavity is internally provided with a heat exchange tube; one end of the heat exchange tube is an air inlet, the air inlet extends out of the cooling water jacket, and the other end of the heat exchange tube is connected with the bottom of the shell; the upper end of the shell is provided with an air outlet, and a molecular sieve is arranged in the shell; the cooling water jacket is provided with a cooling water inlet and a cooling water outlet. The utility model can finish the pre-cooling and purifying of the air at the same time, and has compact integral structure and small occupied area.
According to the air purification device for preparing liquid oxygen by the nitrogen circulation process, the problems that equipment required by precooling and purifying air is large in size, not compact enough and large in occupied area are solved by combining precooling and purifying into a whole are solved, but the device is still insufficient, the air enters the heat exchange tube, the interior impurities are more, dust is accompanied, the heat exchange tube is easy to block after long-time use, and the air contains moisture. Condensed water is easy to generate after heat exchange with cold water in the heat exchange tube, and the device is inconvenient for discharging the condensed water.
Disclosure of utility model
The utility model aims to solve the problems of inconvenient drainage of condensed water and inconvenient filtration of dust in air in the prior art, and provides an air purification device for preparing liquid oxygen by circulating nitrogen.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
An air purification device for circulating nitrogen to prepare liquid oxygen, comprising:
The heat exchange tube, the both sides fixed mounting of precooling mechanism has circulation mechanism, the centre fixed mounting of heat exchange tube has main part mechanism, the top one side fixed mounting of precooling mechanism has filtering mechanism, main part mechanism includes: install in the air purification device main part in the middle of the heat exchange tube is inside, fixed mounting has the air outlet in the middle of the top of air purification device main part, fixed mounting has the regeneration gas export in the middle of the bottom of air purification device main part, one side bottom fixed mounting of air purification device main part has the intake pipe that is used for admitting air, one side fixed mounting of intake pipe has the collection box that is used for collecting the comdenstion water, the bottom fixed mounting of collection box has the sealed lid that is used for discharging the comdenstion water.
In a preferred embodiment, an air inlet is fixedly arranged at the top of the heat exchange tube, a shell is fixedly arranged at the outer side of the heat exchange tube, and the air inlet is a structure for air intake.
In a preferred embodiment, two baffle rings are fixedly arranged on the upper side and the lower side of the shell, the baffle rings are in annular shapes, and the baffle rings are structures for sealing.
In a preferred embodiment, the circulation mechanism comprises: the water inlet pipe is arranged at the bottom of one side of the shell, one side of the water inlet pipe is fixedly provided with a water suction pump, and the water suction pump is a structure for sucking cold water in the water chiller into the water inlet pipe.
In a preferred embodiment, a water chiller is fixedly installed at one side of the water pump, and a water outlet pipe is fixedly installed at one side of the water chiller, and the water outlet pipe is a structure for feeding discharged water into the water chiller.
In a preferred embodiment, the filter mechanism comprises: install in the rose box at air inlet top, the inside swing joint of rose box has the fixed plate, the fixed plate is the structure that is used for fixing.
In a preferred embodiment, a handle is fixedly installed at one side of the fixing plate, and a filter plate is fixedly installed inside the fixing plate, and the filter plate is a structure for filtering the inlet air.
In a preferred embodiment, a mounting block is movably connected to the outer side of the top of the filter box, and a filter screen is fixedly mounted in the middle of the mounting block and is a structure for intercepting dust in air.
Compared with the prior art, the utility model has the beneficial effects that:
1. This air purification device for circulating nitrogen preparation liquid oxygen carries out preliminary filtration through the inside filter screen of installation piece to outside entering, thereby prevent that mosquito and dust from getting into, thereby can take off the installation piece in order to clear up the filter screen through swing joint between installation piece and the rose box, carry out secondary filtration through the inside filter of fixed plate to air, when needs change or wash the filter, thereby drive the fixed plate and follow rose box inside roll-off through pulling the handle, thereby take out the filter and wash or change, the practicality of this air purification device for circulating nitrogen preparation liquid oxygen has been improved, the inside problem that takes place to block up and impurity is piled up of heat exchange tube has been avoided;
2. This air purification device for circulating nitrogen preparation liquid oxygen is with water cooling back through the cooling water machine in the gap between the casing box air purification device main part is followed with water suction pump with water from the inlet tube, send back the water at inside top to the cooling water machine cooling through the outlet pipe, thereby precool the inside air of heat exchange tube, the comdenstion water of precooling air condensation flows to the collection box inside along the heat exchange tube, the air gets into inside the air purification device main part from the intake pipe, thereby can take out the comdenstion water of collection box inside through taking off sealed lid, the practicality and the convenience of this air purification device for circulating nitrogen preparation liquid oxygen have been improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of a heat exchange tube according to the present utility model;
FIG. 3 is a schematic diagram of a chiller according to the present utility model;
FIG. 4 is a schematic diagram of the main body of the air purifying apparatus according to the present utility model;
Fig. 5 is a schematic view of a filter box according to the present utility model.
1. A heat exchange tube; 11. an air inlet; 12. a housing; 13. a baffle ring; 2. a water inlet pipe; 21. a water pump; 22. a water chiller; 23. a water outlet pipe; 3. an air purification device body; 31. an air outlet; 32. a regeneration gas outlet; 33. an air inlet pipe; 34. a collection box; 35. sealing cover; 4. a filter box; 41. a fixing plate; 42. a handle; 43. a filter plate; 44. a mounting block; 45. and (3) a filter screen.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 5, in this embodiment, an air purification apparatus for circulating nitrogen to prepare liquid oxygen includes: the heat exchange tube 1, the top of heat exchange tube 1 is fixed mounting and is had air inlet 11, and the outside of heat exchange tube 1 is fixed mounting and is had shell 12.
Two baffle rings 13 are fixedly arranged on the upper side and the lower side of the shell 12, and the baffle rings 13 are in an annular shape.
Specifically, the precooling mechanism is a precooling structure for the air purification device for liquid oxygen preparation by the circulating nitrogen, a closed space is formed by the shell 12, the two baffle rings 13 and the air purification device main body 3 for cooling the heat exchange tube 1 by cold water, and the practicability of the air purification device for liquid oxygen preparation by the circulating nitrogen is improved.
Circulation mechanism is fixed mounting in the both sides of precooling mechanism, and circulation mechanism includes: the water inlet pipe 2 is arranged at the bottom of one side of the shell 12, and the water suction pump 21 is fixedly arranged on one side of the water inlet pipe 2.
A water chiller 22 is fixedly arranged on one side of the water pump 21, and a water outlet pipe 23 is fixedly arranged on one side of the water chiller 22.
Specifically, the circulation mechanism is a water circulation structure for the air purification device for circulating nitrogen to prepare liquid oxygen, cold water in the cold water machine 22 is sent into a gap between the air purification device main body 3 and the shell 12 through the water suction pump 21 so as to cool the heat exchange tube 1, and cold water used in the gap is discharged through the water outlet pipe 23 and then sent back to the cold water machine 22 for circulation, so that the practicability of the air purification device for circulating nitrogen to prepare liquid oxygen is improved.
The middle of the heat exchange tube 1 is fixedly provided with a main body mechanism, and the main body mechanism comprises: install in the inside middle air purification device main part 3 of heat exchange tube 1, fixed mounting has air outlet 31 in the middle of the top of air purification device main part 3, and fixed mounting has regeneration gas export 32 in the middle of the bottom of air purification device main part 3, and one side bottom fixed mounting of air purification device main part 3 has intake pipe 33, and one side fixed mounting of intake pipe 33 has collection box 34, and the bottom fixed mounting of collection box 34 has sealed lid 35.
Specifically, the main body mechanism is a main body structure of the air purification device for preparing liquid oxygen from circulating nitrogen, air and condensed water in the heat exchange tube 1 are sent into the collecting box 34 through the heat exchange tube 1, the air enters the air purification device main body 3 from the air inlet tube 33 for purification, the condensed water falls into the bottom of the collecting box 34 for collection, and when the condensed water needs to be cleaned, the sealing cover 35 is removed to take out the condensed water, so that the practicability of the air purification device for preparing liquid oxygen from circulating nitrogen is improved.
The top one side fixed mounting of precooling mechanism has filtering mechanism, and filtering mechanism includes: the filter box 4 is arranged at the top of the air inlet 11, and a fixed plate 41 is movably connected inside the filter box 4.
A handle 42 is fixedly installed at one side of the fixing plate 41, and a filter plate 43 is fixedly installed inside the fixing plate 41.
The outside of the top of the filter box 4 is movably connected with a mounting block 44, and a filter screen 45 is fixedly arranged in the middle of the mounting block 44.
Specifically, the filtering mechanism is a structure for filtering external inlet air by the air purification device for preparing liquid oxygen by using circulating nitrogen, the filtering screen 45 is used for carrying out one-layer filtering, the filtering plate 43 is used for carrying out two-layer filtering on the air, when cleaning is needed, the handle 42 is pulled to drive the fixed plate 41 to move, so that the filtering plate 43 is taken out, the filter screen 45 is taken down for cleaning by movably connecting the mounting block 44 and the filtering box 4, and the practicability of the air purification device for preparing liquid oxygen by using circulating nitrogen is improved.
Working principle: firstly, external air passes through a filter screen 45 in the middle of a mounting block 44 to carry out primary filtration, the filter screen 45 intercepts dust and impurities in the air, the filtered air carries out secondary filtration through a filter plate 43 in a fixing plate 41, so that the impurities in the air are subjected to secondary filtration, the problem that the impurities and the dust enter the heat exchange tube 1 to cause blockage in the heat exchange tube 1 is avoided, when the filter screen 45 needs to be cleaned, the mounting block 44 is taken down through movable connection between the mounting block 44 and a filter box 4, so that the filter screen 45 is conveniently cleaned, when the filter plate 43 needs to be cleaned or replaced, the handle 42 is pulled to drive the fixing plate 41 to move outwards, so that the filter plate 43 is taken out to be cleaned or replaced, the cold water in the cold water machine 22 is pumped into a gap between the air purification device main body 3 and the shell 12 through the water suction pump 21, so that the air in the heat exchange tube 1 is precooled, the water used in the gap between the air purification device main body 3 and the shell 12 is returned to the cold water machine 22 through the water outlet pipe 23 for re-cooling, so that the water is recycled, the air in the heat exchange tube 1 forms condensed water in the heat exchange tube 1 after being cooled by the cold water, the condensed water flows into the collecting box 34 along the heat exchange tube 1, the condensed water is collected through the collecting box 34, the air is sent into the air purification device main body 3 from the air inlet pipe 33 for reaction, and when the condensed water in the collecting box 34 needs to be cleaned, the sealing cover 35 is removed, so that the collecting box 34 is opened to take out the condensed water, and the air in the air purification device main body 3 is purified.
Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.
Claims (8)
1. The utility model provides an air purification device for circulating nitrogen preparation liquid oxygen, includes heat exchange tube (1), and the both sides fixed mounting of precooling mechanism has circulation mechanism, the centre fixed mounting of heat exchange tube (1) has main part mechanism, the top one side fixed mounting of precooling mechanism has filtering mechanism, a serial communication port, main part mechanism includes: install in air purification device main part (3) in the middle of heat exchange tube (1) inside, air outlet (31) are fixed mounting in the middle of the top of air purification device main part (3), regeneration gas export (32) are fixed mounting in the middle of the bottom of air purification device main part (3), one side bottom fixed mounting of air purification device main part (3) has intake pipe (33), one side fixed mounting of intake pipe (33) has collection box (34), the bottom fixed mounting of collection box (34) has sealed lid (35).
2. An air purification device for circulating nitrogen produced liquid oxygen according to claim 1, characterized in that: the top of the heat exchange tube (1) is fixedly provided with an air inlet (11), and the outer side of the heat exchange tube (1) is fixedly provided with a shell (12).
3. An air purification device for circulating nitrogen production liquid oxygen according to claim 2, characterized in that: two baffle rings (13) are fixedly arranged on the upper side and the lower side of the shell (12), and the baffle rings (13) are in an annular shape.
4. An air purification device for circulating nitrogen production liquid oxygen according to claim 2, characterized in that: the circulation mechanism includes: the water inlet pipe (2) is arranged at the bottom of one side of the shell (12), and a water suction pump (21) is fixedly arranged at one side of the water inlet pipe (2).
5. An air purification device for circulating nitrogen produced liquid oxygen according to claim 4, wherein: a water chiller (22) is fixedly arranged on one side of the water suction pump (21), and a water outlet pipe (23) is fixedly arranged on one side of the water chiller (22).
6. An air purification device for circulating nitrogen production liquid oxygen according to claim 2, characterized in that: the filtering mechanism comprises: install in rose box (4) at air inlet (11) top, the inside swing joint of rose box (4) has fixed plate (41).
7. An air purification device for circulating nitrogen produced liquid oxygen according to claim 6, wherein: one side of the fixed plate (41) is fixedly provided with a handle (42), and the inside of the fixed plate (41) is fixedly provided with a filter plate (43).
8. An air purification device for circulating nitrogen produced liquid oxygen according to claim 7, wherein: the top outside swing joint of rose box (4) has installation piece (44), the centre fixed mounting of installation piece (44) has filter screen (45).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322493753.8U CN220931512U (en) | 2023-09-14 | 2023-09-14 | Air purification device for circulating nitrogen to prepare liquid oxygen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322493753.8U CN220931512U (en) | 2023-09-14 | 2023-09-14 | Air purification device for circulating nitrogen to prepare liquid oxygen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220931512U true CN220931512U (en) | 2024-05-10 |
Family
ID=90933049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322493753.8U Active CN220931512U (en) | 2023-09-14 | 2023-09-14 | Air purification device for circulating nitrogen to prepare liquid oxygen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220931512U (en) |
-
2023
- 2023-09-14 CN CN202322493753.8U patent/CN220931512U/en active Active
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