CN217042040U - Acid gas absorption device for esterification reaction of 1-methyl-1, 2, 4-triazole-3-methyl formate - Google Patents
Acid gas absorption device for esterification reaction of 1-methyl-1, 2, 4-triazole-3-methyl formate Download PDFInfo
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- CN217042040U CN217042040U CN202220599938.XU CN202220599938U CN217042040U CN 217042040 U CN217042040 U CN 217042040U CN 202220599938 U CN202220599938 U CN 202220599938U CN 217042040 U CN217042040 U CN 217042040U
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- Prior art keywords
- body box
- methyl
- inlet pipe
- pipe
- acid gas
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- 239000002253 acid Substances 0.000 title claims abstract description 42
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 26
- 238000005886 esterification reaction Methods 0.000 title claims abstract description 21
- 239000007921 spray Substances 0.000 claims abstract description 13
- 230000002378 acidificating effect Effects 0.000 claims abstract 2
- 239000007788 liquid Substances 0.000 claims description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 230000000149 penetrating effect Effects 0.000 claims description 17
- 230000000903 blocking effect Effects 0.000 claims description 11
- 239000000523 sample Substances 0.000 claims description 5
- 238000007667 floating Methods 0.000 claims description 4
- 239000002274 desiccant Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- NKPPQSVPTZHGMA-UHFFFAOYSA-N methyl 1-methyl-1,2,4-triazole-3-carboxylate Chemical compound COC(=O)C=1N=CN(C)N=1 NKPPQSVPTZHGMA-UHFFFAOYSA-N 0.000 claims description 3
- 230000032050 esterification Effects 0.000 claims description 2
- 239000012670 alkaline solution Substances 0.000 abstract description 10
- 238000006243 chemical reaction Methods 0.000 abstract description 9
- 239000000543 intermediate Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 33
- 239000000243 solution Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 241000700721 Hepatitis B virus Species 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- PMEKKJJZHNQEIZ-UHFFFAOYSA-N 1-methyl-1,2,4-triazole-3-carboxylic acid Chemical compound CN1C=NC(C(O)=O)=N1 PMEKKJJZHNQEIZ-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 238000010669 acid-base reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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- Gas Separation By Absorption (AREA)
Abstract
The utility model discloses an acidic gas absorption device for esterification reaction of 1-methyl-1, 2, 4-triazole-3-methyl formate, belonging to the technical field of medical intermediates. The acid gas absorption device for the esterification reaction comprises a body box, wherein an exhaust pipe penetrates through the top of the body box, a fixed pipe penetrates through the top of the body box, the bottom end of the fixed pipe is rotatably connected with a spray head assembly, the inner wall of the body box is rotatably connected with an annular rotating plate, one side of the body box is rotatably connected with a gear, and the gear is meshed with the annular rotating plate; the utility model discloses a set up shower nozzle subassembly, annular rotor plate and gear for prior art, greatly increased alkaline solution and acid gas's area of contact, and then greatly increased the reaction rate of acid-base, and it is rotatory to drive the gear when annular rotor plate is rotatory, realizes that the ration admits air, thereby makes the acid gas of body incasement portion fully react with alkaline solution, and for traditional technique, the acid gas absorption rate is higher.
Description
Technical Field
The utility model relates to the technical field of acid gas treatment in medical intermediates, in particular to an acid gas absorption device for esterification reaction of 1-methyl-1, 2, 4-triazole-3-methyl formate.
Background
1-methyl-1, 2, 4-triazole-3-methyl formate is used as a key intermediate of a medicament for treating HBV (hepatitis B virus) or HDV (HDV) infection, esterification reaction from 1-methyl-1, 2, 4-triazole-3-formic acid to 1-methyl-1, 2, 4-triazole-3-methyl formate is involved in synthesis, thionyl chloride is adopted in a methanol solvent for reaction, acid gases such as sulfur dioxide and hydrogen chloride are generated in the reaction process, and the acid gases need to be treated by an acid gas absorption device.
However, the existing acid gas absorption device has certain defects, and the existing acid gas absorption device generally adopts a spraying method, so that the absorption efficiency is low, the spraying method needs to be carried out for a plurality of times for a long time, and the production requirement of a drug production factory cannot be met, so that the 1-methyl-1, 2, 4-triazole-3-methyl formate esterification reaction acid gas absorption device is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem of low absorption efficiency of acid gas in the prior art, and provides an acid gas absorption device for esterification reaction of 1-methyl-1, 2, 4-triazole-3-methyl formate.
In order to realize the purpose, the utility model adopts the following technical scheme:
the 1-methyl-1, 2, 4-triazole-3-methyl formate esterification reaction acid gas absorption device comprises a body box, wherein an exhaust pipe is installed at the top of the body box in a penetrating mode, a fixed pipe is installed at the top of the body box in a penetrating mode, a spray head assembly is connected to the bottom end of the fixed pipe in a rotating mode, an annular rotating plate is connected to the inner wall of the body box in a rotating mode, a gear is connected to one side of the body box in a rotating mode, the gear is meshed with the annular rotating plate, a first air inlet pipe is fixedly connected to one side of the body box through a supporting frame, a second air inlet pipe is installed at one side of the body box in a penetrating mode, the axis of the first air inlet pipe is overlapped with the axis of the second air inlet pipe, the two sides of the gear are respectively connected with one end of the first air inlet pipe and one end of the second air inlet pipe in a sliding mode, and a through hole is formed in the surface of the gear in a penetrating mode, the aperture of the through hole is equal to that of the first air inlet pipe and that of the second air inlet pipe, a circulating pump is fixedly mounted on the top surface of the fixed pipe, the input end of the circulating pump penetrates through the bottom of one side of the body box, and the output end of the circulating pump penetrates through one side of the fixed pipe; the middle part of one side of the body box is provided with an automatic liquid feeding and discharging assembly.
In order to realize spraying, preferably, the spray head assembly comprises a rotating pipe, the outer wall of the rotating pipe is rotatably connected in the inner wall of the fixed pipe, the bottom end of the rotating pipe is communicated with a rotating disc, and a plurality of water outlets are penetratingly arranged on the surface of the rotating disc.
In order to achieve an increase in reaction rate, it is preferable that the inner wall of the annular rotary plate is provided with an uneven pattern.
In order to realize automatic feed liquor, preferably, automatic flowing back subassembly includes the inlet tube, the inlet tube runs through to be installed one side of body case, and the bottom of inlet tube runs through to install the guide way, the inside sliding connection of guide way has the jam plate, the bottom surface of jam plate with be connected with the spring between the bottom surface of guide way inner wall, and the underrun of jam plate connects rope fixedly connected with floater, the outer wall sliding connection of jam plate is in the inner wall of inlet tube.
In order to realize automatic liquid drainage, preferably, the bottom surface of the inner wall of the body box is provided with a probe of a pH meter detector, a first electromagnetic control valve is arranged inside the water inlet pipe, a liquid drainage pipe is installed at the bottom of one side of the body box in a penetrating manner, and a second electromagnetic control valve is arranged inside the liquid drainage pipe.
In order to achieve dehumidification, preferably, a rigid bearing net is fixedly connected to the inside of the exhaust pipe, and a desiccant bag is placed on the rigid bearing net.
Compared with the prior art, the utility model provides a 1-methyl-1, 2, 4-triazole-3-methyl formate esterification reaction acid gas absorbing device possesses following beneficial effect:
this 1-methyl-1, 2, 4-triazole-3-methyl formate esterification reaction acid gas absorbing device, through setting up the shower nozzle subassembly, structural component such as annular rotor plate and gear, make this device for prior art, greatly increased alkaline solution and acid gas's area of contact, and then greatly increased the reaction rate of acid-base, and it is rotatory to drive the gear when annular rotor plate is rotatory, through-hole on the gear rotate to with first intake pipe, when the second intake pipe intercommunication, acid gas just can get into the inside of body case, realize the ration and admit air, thereby make the acid gas of body incasement portion fully react with alkaline solution, for traditional technology, the acid gas absorption rate is higher.
The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses simple structure, preparation low cost is fit for the volume production, is worth promoting, and acid-base reaction rate is fast, and the acid gas absorption rate is high, and the combustion gas is safe harmless more, advances flowing back, convenient to use automatically.
Drawings
FIG. 1 is a schematic view of a sectional structure of an acid gas absorption apparatus for esterification of 1-methyl-1, 2, 4-triazole-3-carboxylic acid methyl ester according to the present invention;
FIG. 2 is a schematic perspective view of a nozzle assembly of the acid gas absorption apparatus for esterification reaction of 1-methyl-1, 2, 4-triazole-3-methyl formate according to the present invention;
FIG. 3 is a schematic diagram of the internal structure of the water inlet pipe of the acid gas absorption device for esterification reaction of 1-methyl-1, 2, 4-triazole-3-methyl formate of the present invention.
In the figure: 1. a body case; 2. a fixed tube; 3. a showerhead assembly; 301. rotating the tube; 302. rotating the disc; 303. a water outlet nozzle; 4. an annular rotating plate; 5. a gear; 6. a first intake pipe; 7. a second intake pipe; 8. a through hole; 9. a circulation pump; 10. an automatic liquid inlet and outlet assembly; 1001. a water inlet pipe; 1002. a guide groove; 1003. a blocking plate; 1004. a spring; 1005. connecting ropes; 1006. a floating ball; 1007. a liquid discharge pipe; 1008. a pH meter detector probe; 1009. a first solenoid control valve; 1010. a second solenoid control valve; 11. and (4) exhausting the gas.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The embodiment is as follows:
referring to fig. 1-3, 1-methyl-1, 2, 4-triazole-3-methyl formate esterification reaction acid gas absorption device, which comprises a body box 1, wherein an exhaust pipe 11 is installed at the top of the body box 1 in a penetrating manner, a fixed pipe 2 is installed at the top of the body box 1 in a penetrating manner, the bottom end of the fixed pipe 2 is rotatably connected with a spray head assembly 3, an annular rotating plate 4 is rotatably connected with the inner wall of the body box 1, a gear 5 is rotatably connected with one side of the body box 1, the gear 5 is meshed with the annular rotating plate 4, a first air inlet pipe 6 is fixedly connected with one side of the body box 1 through a support frame, a second air inlet pipe 7 is installed at one side of the body box 1 in a penetrating manner, the axis of the first air inlet pipe 6 is coincided with the axis of the second air inlet pipe 7, and two sides of the gear 5 are respectively connected with one end of the first air inlet pipe 6 and one end of the second air inlet pipe 7 in a sliding manner, in order to ensure the airtightness, a through hole 8 is formed in the surface of the gear 5 in a penetrating manner, the aperture of the through hole 8 is equal to that of the first air inlet pipe 6 and that of the second air inlet pipe 7, when the gear 5 rotates for one circle, the first air inlet pipe 6, the second air inlet pipe 7 and the through hole 8 are communicated at least once, a circulating pump 9 is fixedly installed on the top surface of the fixed pipe 2, the input end of the circulating pump 9 penetrates through the bottom of one side of the body box 1, and the output end of the circulating pump 9 penetrates through one side of the fixed pipe 2; the middle part of one side of the body box 1 is provided with an automatic liquid inlet and outlet component 10.
Specifically, shower nozzle subassembly 3 includes rotating-tube 301, the outer wall of rotating-tube 301 rotates to be connected in the inner wall of fixed pipe 2, and the bottom intercommunication of rotating-tube 301 has rolling disc 302, the surface of rolling disc 302 runs through and installs a plurality of faucet 303, shower nozzle subassembly 3 is in the alkaline liquid of injection, under the effect of liquid reaction force, shower nozzle subassembly 3 begins to rotate, and spray alkaline solution to annular rotor plate 4 on, and be equipped with unevenness's decorative pattern on the annular rotor plate 4, under the liquid action force, annular rotor plate 4 begins to rotate, and the scattering and opening that alkaline solution got rid of, compared with the prior art, this device greatly increased alkaline solution and acid gas's area of contact, and then greatly increased the reaction rate of acid-base.
Specifically, the inner wall of the annular rotating plate 4 is provided with uneven patterns, so that the solution can be conveniently scattered and spread.
Specifically, the automatic liquid feeding and discharging assembly 10 includes a water inlet pipe 1001, the water inlet pipe 1001 is installed through one side of the body case 1, and the bottom of the water inlet pipe 1001 is installed with a guide groove 1002 in a penetrating way, the inside of the guide groove 1002 is connected with a blocking plate 1003 in a sliding way, a spring 1004 is connected between the bottom surface of the blocking plate 1003 and the bottom surface of the inner wall of the guide groove 1002, and the bottom surface of the blocking plate 1003 is fixedly connected with a floating ball 1006 through a connecting rope 1005, the outer wall of the blocking plate 1003 is slidably connected in the inner wall of the water inlet pipe 1001, in order to ensure the sealing property, before the use, when the automatic liquid inlet and outlet assembly 10 is connected with an alkaline liquid input source, alkaline solution enters the interior of the body box 1 from the water inlet pipe 1001, and when the amount of the alkaline solution in the body box 1 reaches a certain amount, the floating ball 1006 is subjected to buoyancy, under the action of the restoring force of the spring 1004, the blocking plate 1003 moves upward, thereby blocking the inside of the water inlet pipe 1001, thereby achieving the stop of liquid charging.
Specifically, a PH meter detector probe 1008 is arranged on the bottom surface of the inner wall of the body box 1, a first electromagnetic control valve 1009 is arranged inside the water inlet pipe 1001, a liquid outlet pipe 1007 is arranged at the bottom of one side of the body box 1 in a penetrating manner, a second electromagnetic control valve 1010 is arranged inside the liquid outlet pipe 1007, when the PH meter detector probe 1008 detects that the alkalinity of the solution inside the body box 1 is insufficient, the terminal PH meter detector displays that the alkalinity value of the solution is low, which indicates that the solution can not absorb acid gas any more, an acid gas inlet source is cut off, the device executes a set program, the circulating pump 9 is closed, the first electromagnetic control valve 1009 is closed, the second electromagnetic control valve 1010 is opened, after a certain time, the internal waste liquid is completely discharged, the second electromagnetic control valve 1010 is closed, the first electromagnetic control valve 1009 is opened, the whole device continues to normally operate, compared with the conventional technology, the waste liquid is automatically discharged, the opening time of the second electromagnetic control valve 1010 is related to a certain amount of discharge time of alkaline liquid filled inside the body box 1, the predetermined value is not described herein in more detail.
Specifically, a rigid receiving net is fixedly connected inside the exhaust pipe 11, and a desiccant bag is placed on the rigid receiving net, so that liquid in the exhaust gas is adsorbed.
In the utility model, before using, the acid gas inlet source is connected at the first air inlet pipe 6, the alkaline liquid inlet source is connected at the automatic liquid inlet and outlet assembly 10, so as to fill a certain amount of alkaline liquid into the body box 1, when using, the control switch of the circulating pump 9 is opened, so as to suck the alkaline liquid at the bottom of the body box 1 into the fixed pipe 2 and then spray the alkaline liquid by the spray head assembly 3, thereby realizing the acid removal by the spraying method, compared with the prior art, the spray head assembly 3 of the device sprays the alkaline liquid, under the action of the liquid reaction force, the spray head assembly 3 starts to rotate and sprays the alkaline liquid onto the annular rotating plate 4, the annular rotating plate 4 is provided with uneven patterns, under the liquid action force, the annular rotating plate 4 starts to rotate and the alkaline liquid is thrown away, compared with the prior art, the contact area of the alkaline liquid and the acid gas is greatly increased by the device, and then greatly increased the reaction rate of acid-base, and it is rotatory to drive gear 5 when annular rotor plate 4 is rotatory, through-hole 8 on gear 5 rotates to with first intake pipe 6, during 7 intercommunications of second intake pipe, acid gas just can get into the inside of body case 1, realize the ration and admit air, thereby make the acid gas of body case 1 inside fully react with alkaline solution, for the conventional art, acid gas absorption efficiency is high, the device structure is ingenious, the operation is thus simple, the production cost is low, and the device is worth promoting.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1.1-methyl-1, 2, 4-triazole-3-methyl formate esterification reaction acid gas absorption device, which comprises a body box (1), wherein an exhaust pipe (11) is installed at the top of the body box (1) in a penetrating manner, and is characterized in that a fixed pipe (2) is installed at the top of the body box (1) in a penetrating manner, a spray head assembly (3) is connected to the bottom end of the fixed pipe (2) in a rotating manner, an annular rotating plate (4) is connected to the inner wall of the body box (1) in a rotating manner, a gear (5) is connected to one side of the body box (1) in a rotating manner, the gear (5) is meshed with the annular rotating plate (4), a first air inlet pipe (6) is fixedly connected to one side of the body box (1) through a support frame, a second air inlet pipe (7) is installed at one side of the body box (1) in a penetrating manner, and the axis of the first air inlet pipe (6) coincides with the axis of the second air inlet pipe (7), two sides of the gear (5) are respectively connected with one end of the first air inlet pipe (6) and one end of the second air inlet pipe (7) in a sliding mode, a through hole (8) penetrates through the surface of the gear (5), the aperture of the through hole (8) is equal to that of the first air inlet pipe (6) and that of the second air inlet pipe (7), a circulating pump (9) is fixedly installed on the top surface of the fixed pipe (2), the input end of the circulating pump (9) penetrates through the bottom of one side of the body box (1), and the output end of the circulating pump (9) penetrates through one side of the fixed pipe (2); the middle part of one side of the body box (1) is provided with an automatic liquid inlet and outlet assembly (10).
2. The acid gas absorption apparatus for esterification of 1-methyl-1, 2, 4-triazole-3-methyl formate according to claim 1, wherein the spray head assembly (3) comprises a rotating pipe (301), the outer wall of the rotating pipe (301) is rotatably connected to the inner wall of the fixed pipe (2), the bottom end of the rotating pipe (301) is communicated with a rotating disc (302), and a plurality of water nozzles (303) are penetratingly installed on the surface of the rotating disc (302).
3. The apparatus for absorbing acidic gas in esterification reaction of methyl 1-methyl-1, 2, 4-triazole-3-carboxylate according to claim 1, wherein the inner wall of the annular rotary plate (4) is provided with a rugged pattern.
4. The acid gas absorption device for the esterification reaction of 1-methyl-1, 2, 4-triazole-3-methyl formate according to claim 1, wherein the automatic liquid feeding and discharging assembly (10) comprises a water inlet pipe (1001), the water inlet pipe (1001) is installed on one side of the body box (1) in a penetrating manner, a guide groove (1002) is installed at the bottom of the water inlet pipe (1001) in a penetrating manner, a blocking plate (1003) is connected to the inside of the guide groove (1002) in a sliding manner, a spring (1004) is connected between the bottom surface of the blocking plate (1003) and the bottom surface of the inner wall of the guide groove (1002), a floating ball (1006) is fixedly connected to the bottom surface of the blocking plate (1003) through a connecting rope (1005), and the outer wall of the blocking plate (1003) is connected to the inner wall of the water inlet pipe (1001) in a sliding manner.
5. The acid gas absorption device for the esterification reaction of 1-methyl-1, 2, 4-triazole-3-methyl formate according to claim 4, wherein a pH meter detector probe (1008) is arranged on the bottom surface of the inner wall of the main body box (1), a first electromagnetic control valve (1009) is arranged inside the water inlet pipe (1001), a liquid discharge pipe (1007) is installed at the bottom of one side of the main body box (1) in a penetrating manner, and a second electromagnetic control valve (1010) is arranged inside the liquid discharge pipe (1007).
6. The acid gas absorption device for the esterification reaction of 1-methyl-1, 2, 4-triazole-3-carboxylic acid methyl ester according to claim 1, wherein a rigid receiving net is fixedly connected to the inside of the exhaust pipe (11), and a desiccant bag is placed on the rigid receiving net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220599938.XU CN217042040U (en) | 2022-03-18 | 2022-03-18 | Acid gas absorption device for esterification reaction of 1-methyl-1, 2, 4-triazole-3-methyl formate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220599938.XU CN217042040U (en) | 2022-03-18 | 2022-03-18 | Acid gas absorption device for esterification reaction of 1-methyl-1, 2, 4-triazole-3-methyl formate |
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| Publication Number | Publication Date |
|---|---|
| CN217042040U true CN217042040U (en) | 2022-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220599938.XU Active CN217042040U (en) | 2022-03-18 | 2022-03-18 | Acid gas absorption device for esterification reaction of 1-methyl-1, 2, 4-triazole-3-methyl formate |
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| Country | Link |
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| CN (1) | CN217042040U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116459102A (en) * | 2023-04-28 | 2023-07-21 | 西藏圣海诺科技有限公司 | Micro-pressure oxygen cabin for removing carbon dioxide |
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2022
- 2022-03-18 CN CN202220599938.XU patent/CN217042040U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116459102A (en) * | 2023-04-28 | 2023-07-21 | 西藏圣海诺科技有限公司 | Micro-pressure oxygen cabin for removing carbon dioxide |
| CN116459102B (en) * | 2023-04-28 | 2023-09-22 | 西藏圣海诺科技有限公司 | Micro-pressure oxygen cabin for removing carbon dioxide |
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Effective date of registration: 20240330 Address after: 116600 room 815, free trade building, Dalian Free Trade Zone, Liaoning Province Patentee after: Dalian Kemai Pharmaceutical Technology Co.,Ltd. Country or region after: China Address before: 201512 room 404, unit 2, building 1, no.688 Qiushi Road, Jinshanwei Town, Jinshan District, Shanghai Patentee before: SHANGHAI TBBMED Co.,Ltd. Country or region before: China |