CN219744402U - Nitrogen filtering and drying device - Google Patents
Nitrogen filtering and drying device Download PDFInfo
- Publication number
- CN219744402U CN219744402U CN202321020414.1U CN202321020414U CN219744402U CN 219744402 U CN219744402 U CN 219744402U CN 202321020414 U CN202321020414 U CN 202321020414U CN 219744402 U CN219744402 U CN 219744402U
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- China
- Prior art keywords
- filter
- tank
- heat preservation
- way valve
- buffer
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 31
- 238000001035 drying Methods 0.000 title claims abstract description 29
- 238000001914 filtration Methods 0.000 title claims abstract description 23
- 238000004321 preservation Methods 0.000 claims abstract description 40
- 238000010438 heat treatment Methods 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000012452 mother liquor Substances 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 21
- -1 polytetrafluoroethylene Polymers 0.000 claims description 18
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 14
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 12
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 9
- 239000010935 stainless steel Substances 0.000 claims description 9
- 239000004813 Perfluoroalkoxy alkane Substances 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 6
- 229910000856 hastalloy Inorganic materials 0.000 claims description 6
- 239000011490 mineral wool Substances 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000011491 glass wool Substances 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 239000011496 polyurethane foam Substances 0.000 claims description 3
- 229920002545 silicone oil Polymers 0.000 claims description 3
- 239000011780 sodium chloride Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 abstract description 6
- 238000002425 crystallisation Methods 0.000 abstract description 4
- 230000008025 crystallization Effects 0.000 abstract description 4
- 239000013078 crystal Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000013557 residual solvent Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
The utility model provides a nitrogen filtering and drying device, which comprises: the device comprises a flowmeter, a heating box, a first buffer filter tank, a second buffer filter tank and a first three-way valve, wherein the flowmeter, the heating box, the first buffer filter tank, the second buffer filter tank and the first three-way valve are sequentially connected through pipelines, one port of the first three-way valve is connected with a reaction kettle through a pipeline, the last port of the first three-way valve is connected with a filter dryer arranged in a room of a filter dryer through a pipeline and then is connected with a mother liquor tank, so that nitrogen is led into the reaction kettle or the mother liquor tank through the pipeline; the heating box, the first buffer filter tank and the filter dryer are all provided with jackets, and the jackets are connected through heat preservation pipelines so as to heat the first buffer filter tank and the filter dryer through the heat preservation pipelines. The utility model has the advantages of simple structure, simple and convenient operation, improved drying efficiency and the like, and can protect the crystallization water from being lost while drying for some compounds needing to retain the crystallization water.
Description
Technical Field
The utility model relates to the field of pharmaceutical chemical production equipment, in particular to a nitrogen filtering and drying device.
Background
In the production of chemical products or pharmaceuticals, filtration and drying are very important unit operations. However, a single filtration device or a single drying device can only meet one of the requirements, and the solid form material obtained by filtration generally needs to be conveyed to the drying device for drying.
Drying is a common process in operation. The process requires drying the material. Because of different crystal forms of different compounds and different residual solvents, the drying difficulty is different, even drying cannot be advanced, so that the energy consumption is high, the equipment time is long, and the production batch is difficult to expand. Therefore, in order to smoothly complete the drying, the residual solvent of the target product needs to be replaced by nitrogen for preparing the easily dried solvent by the nitrogen generator, so that the content of the difficult-to-dry solvent is reduced, and the easily dried solvent is dried by subsequent use of reduced pressure. The nitrogen produced by the existing nitrogen generator cannot protect the compound with crystal water from losing for some compounds with crystal water.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a nitrogen filtering and drying device which can protect the crystallization water from being lost while drying certain compounds needing to retain the crystallization water.
In order to solve the technical problems, the utility model provides a nitrogen filtering and drying device, which comprises: the device comprises a flowmeter, a heating box, a first buffer filter tank, a second buffer filter tank and a first three-way valve, wherein the flowmeter, the heating box, the first buffer filter tank, the second buffer filter tank and the first three-way valve are sequentially connected through pipelines, one port of the first three-way valve is connected with a reaction kettle through the pipeline, the last port of the first three-way valve is connected with a filter dryer arranged in a filter dryer room through the pipeline and then is connected with a mother liquor tank, so that nitrogen is led into the reaction kettle or the mother liquor tank through the pipeline; the heating box, the first buffer filter tank and the filter dryer are all provided with jackets, and the jackets are connected through heat preservation pipelines so as to heat the first buffer filter tank and the filter dryer through the heat preservation pipelines.
Specifically, the flowmeter is a rotameter or a vortex shedding flowmeter.
Specifically, the heating box and the heat preservation pipeline are both internally provided with fluid medium, and the fluid medium is selected from water, saline water, silicone oil or heat conduction oil.
Specifically, a titanium rod filter element is further arranged in the heating box to filter the fluid medium.
In particular, the first buffer filter tank is selected from a CUNO filter, an elevated tank or a pressure filter.
Specifically, the gas outlet of the first buffer filter tank is also connected with a second three-way valve, the second three-way valve is T-shaped, a thermometer or a hygrothermograph is fixedly arranged on a port perpendicular to the first buffer filter tank, and the last port is connected with the gas inlet of the second buffer filter tank.
Specifically, a control panel with adjustable parameters is arranged on the outer surface of the heating box, and data collected by the thermometer or the hygrothermograph can be fed back to the control panel to monitor the nitrogen in the pipeline.
In particular, the second buffer filter tank is selected from a pipe filter or a CUNO filter.
Specifically, the heat preservation pipeline is made of polytetrafluoroethylene, PFA soluble polytetrafluoroethylene, stainless steel, hastelloy or polypropylene.
Specifically, the outer side of the heat preservation pipeline is wrapped with a heat preservation material layer, and the heat preservation material layer is selected from electric tracing heat preservation cotton, rock wool pipes, polyethylene heat preservation materials, silicate composite heat preservation materials, aluminum silicate heat preservation materials, high-temperature glass wool heat preservation materials, superfine glass surfaces, hard polyurethane foam plastics, rubber plastic sponge or rock wool heat preservation felts.
Specifically, still be equipped with the third three-way valve in the filter-drier room and connect respectively first three-way valve with the filter-drier, the last port of third three-way valve has connect the blank pipe, no water droplet in the blank pipe just adjusts the third three-way valve makes the nitrogen gas passes through the filter-drier gets into the mother liquor jar.
Specifically, the pipeline is made of SS stainless steel, GL stainless steel, hastelloy, glass, polytetrafluoroethylene or PFA soluble polytetrafluoroethylene.
The utility model has the advantages of simple structure, simple and convenient operation, improved drying efficiency and the like, and is beneficial to expanding production batch. The nitrogen is heated by the heating box and humidified simultaneously, and the temperature of the whole device is ensured by the heat preservation pipeline, the jacket and the like, so that the temperature and the humidity of the nitrogen entering the mother liquid tank are controlled, and the needed crystal water in the compound is well protected.
Drawings
In order to more clearly illustrate the technical solutions of the present utility model, the following brief description of the drawings is given for the purpose of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without the need for inventive work for a person skilled in the art.
FIG. 1 shows a nitrogen gas filter-dryer according to the present utility model.
Symbol description
0. Nitrogen gas
1. Pipeline
2. Flowmeter for measuring flow rate
3. Heating box
4. First buffer filter tank
5. Second buffer filter tank
6. First three-way valve
7. Reaction kettle
8. Filtering dryer
9. Mother liquor tank
10. Filter drier room
11. Second three-way valve
12. Thermometer or hygrothermograph
13. Third three-way valve
Detailed Description
The following description of the embodiments of the present utility model will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the utility model are shown. 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.
Example 1
Referring to fig. 1, there is shown a nitrogen filtering and drying apparatus provided by the present utility model, including: the device comprises a flowmeter 2, a heating box 3, a first buffer filter tank 4, a second buffer filter tank 5 and a first three-way valve 6 which are sequentially connected by a pipeline 1, wherein the other port of the first three-way valve 6 is connected with a reaction kettle 7 through the pipeline 1, the last port of the first three-way valve 6 is connected with a filter dryer 8 arranged in a filter dryer room 10 through the pipeline 1 and then is connected with a mother liquor tank 9, so that nitrogen 0 is led into the reaction kettle 7 or the mother liquor tank 9 through the pipeline 1; the heating box 3, the first buffer filter tank 4 and the filter dryer 8 are all provided with jackets, and the jackets are connected through heat-insulating pipelines so as to heat the first buffer filter tank 4 and the filter dryer 8 through the heat-insulating pipelines.
The flowmeter 2 is a rotameter or a vortex shedding flowmeter. The heating box 3 and the heat preservation pipeline are internally provided with fluid medium, and the fluid medium is selected from water, saline, silicone oil or heat conduction oil. The heating box 3 is also internally provided with a titanium rod filter element for filtering fluid media. The first buffer filter tank 4 is selected from a CUNO filter, an elevated tank or a pressure filter. The air outlet of the first buffer filter tank 4 is also connected with a second three-way valve 11, the second three-way valve 11 is T-shaped, a thermometer or a hygrothermograph 12 is fixedly arranged on a port perpendicular to the first buffer filter tank 4, and the last port is connected with the air inlet of the second buffer filter tank 5. The outer surface of the heating box 3 is provided with a control panel with adjustable parameters, and data acquired by a thermometer or a hygrothermograph 12 can be fed back to the control panel to monitor the nitrogen gas 0 in the pipeline 1. The second buffer filter tank 5 is selected from a pipe filter or a CUNO filter. The heat preservation pipeline is made of polytetrafluoroethylene, PFA soluble polytetrafluoroethylene, stainless steel, hastelloy or polypropylene. The outside of the heat preservation pipeline is wrapped with a heat preservation material layer, and the heat preservation material layer is selected from electric tracing heat preservation cotton, a rock wool pipe, a polyethylene heat preservation material, a silicate composite heat preservation material, an aluminum silicate heat preservation material, a high-temperature glass wool heat preservation material, an ultrafine glass surface, hard polyurethane foam plastic, a rubber plastic sponge or a rock wool heat preservation felt. The filter drier room 10 is also internally provided with a third three-way valve 13 which is respectively connected with the first three-way valve 6 and the filter drier 9, the last port of the third three-way valve 13 is connected with an empty pipe, and the third three-way valve 13 is adjusted after no water drops exist in the empty pipe so that nitrogen 0 enters the mother liquid tank 9 through the filter drier 8. The pipeline 1 is made of SS stainless steel, GL stainless steel, hastelloy, glass, polytetrafluoroethylene or PFA soluble polytetrafluoroethylene.
Example two
The utility model provides a nitrogen filtering and drying device, which is characterized in that the application principle is as follows:
after the control panel on the heating box 3 is adjusted to a proper temperature, the fluid medium in the heating box 2 starts to heat and reaches a preset temperature, meanwhile, the jacket of the heating box 3 is heated up due to the temperature rise, the jackets of the first buffer filter tank 4 and the filter dryer 8 are connected with the jacket of the heating box 3, and the first buffer filter tank 4 and the filter dryer 8 are heated up, so that the temperature in the heating box is maintained in an adjusted temperature range.
The nitrogen gas 0 is led into the heating cabinet 3 through the flowmeter 2 by the pipeline 1, the nitrogen gas 0 is heated by the heating cabinet 3 and then sequentially passes through the first buffer filter tank 4 and the second buffer filter tank 5 which are heated, the top of the first buffer filter tank 4 which is heated is provided with the second three-way valve 11 and the thermometer or the temperature and humidity 12, and data acquired by the thermometer or the temperature and humidity 12 can be fed back to the control panel to monitor the nitrogen gas 0 in the pipeline 1. The first buffer filter tank 4 is used for preventing condensed water, the second buffer filter tank 5 is used for blocking foreign matters, then nitrogen 0 is conveyed into the reaction kettle 7 by the first three-way valve 6 to be replaced with residual solvent of a target product, after the set replacement time is reached, the nitrogen 0 is conveyed from the reaction kettle 7 to the third three-way valve 13 arranged in the filter dryer room 10 by adjusting the first three-way valve 6, the last port of the third three-way valve 13 is connected with an empty pipe, no water drops are arranged in the empty pipe, the third three-way valve 13 is adjusted to be communicated with the filter dryer 8, the filter dryer 8 filters the replaced nitrogen, and the filtered nitrogen 0 is conveyed to the mother liquor tank 9 to be stored.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the scope of the utility model, but rather to cover any modifications, equivalents, improvements or the like within the spirit and scope of the present utility model.
Claims (12)
1. A nitrogen gas filter-drier, characterized by comprising: the device comprises a flowmeter, a heating box, a first buffer filter tank, a second buffer filter tank and a first three-way valve, wherein the flowmeter, the heating box, the first buffer filter tank, the second buffer filter tank and the first three-way valve are sequentially connected through pipelines, one port of the first three-way valve is connected with a reaction kettle through the pipeline, the last port of the first three-way valve is connected with a filter dryer arranged in a filter dryer room through the pipeline and then is connected with a mother liquor tank, so that nitrogen is led into the reaction kettle or the mother liquor tank through the pipeline; the heating box, the first buffer filter tank and the filter dryer are all provided with jackets, and the jackets are connected through heat preservation pipelines so as to heat the first buffer filter tank and the filter dryer through the heat preservation pipelines.
2. The nitrogen gas filter drying apparatus of claim 1, wherein the flowmeter is a rotameter or a vortex shedding flowmeter.
3. The nitrogen filtering and drying device according to claim 1, wherein the heating box and the heat preservation pipeline are respectively provided with a fluid medium, and the fluid medium is selected from water, saline, silicone oil or heat conducting oil.
4. A nitrogen gas filtration drying apparatus according to claim 3, wherein a titanium rod filter element is further provided in the heating box for filtering the fluid medium.
5. The nitrogen gas filter-drier of claim 1, wherein the first buffer filter tank is selected from a CUNO filter, an overhead tank, or a pressure filter.
6. The nitrogen filtering and drying device according to claim 1, wherein the air outlet of the first buffer filtering tank is further connected with a second three-way valve, the second three-way valve is T-shaped, a thermometer or a hygrothermograph is fixedly installed on a port perpendicular to the first buffer filtering tank, and the last port is connected with the air inlet of the second buffer filtering tank.
7. The nitrogen filtering and drying device according to claim 6, wherein a control panel capable of adjusting parameters is arranged on the outer surface of the heating box, and data collected by the thermometer or the hygrothermograph can be fed back to the control panel to monitor the nitrogen in the pipeline.
8. The nitrogen filter drying apparatus of claim 1, wherein the second buffer filter tank is selected from a pipe filter or a CUNO filter.
9. The nitrogen filtering and drying device according to claim 1, wherein the heat preservation pipeline is made of polytetrafluoroethylene, PFA soluble polytetrafluoroethylene, stainless steel, hastelloy or polypropylene.
10. The nitrogen filtering and drying device according to claim 1, wherein the heat preservation pipeline is wrapped with a heat preservation material layer, and the heat preservation material layer is selected from electric tracing heat preservation cotton, rock wool pipe, polyethylene heat preservation material, silicate composite heat preservation material, aluminum silicate heat preservation material, high-temperature glass wool heat preservation material, superfine glass surface, hard polyurethane foam plastic, rubber plastic sponge or rock wool heat preservation felt.
11. The nitrogen gas filter-dryer of claim 1, wherein a third three-way valve is further provided in the filter-dryer room and is respectively connected to the first three-way valve and the filter-dryer, a last port of the third three-way valve is connected to an empty pipe, and the third three-way valve is adjusted to enable the nitrogen gas to enter the mother liquor tank through the filter-dryer after no water drops exist in the empty pipe.
12. The nitrogen gas filter drier of claim 1, wherein the material of the pipe is selected from SS stainless steel, GL stainless steel, hastelloy, glass, polytetrafluoroethylene or PFA soluble polytetrafluoroethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321020414.1U CN219744402U (en) | 2023-04-28 | 2023-04-28 | Nitrogen filtering and drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321020414.1U CN219744402U (en) | 2023-04-28 | 2023-04-28 | Nitrogen filtering and drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219744402U true CN219744402U (en) | 2023-09-26 |
Family
ID=88088417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321020414.1U Active CN219744402U (en) | 2023-04-28 | 2023-04-28 | Nitrogen filtering and drying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219744402U (en) |
-
2023
- 2023-04-28 CN CN202321020414.1U patent/CN219744402U/en active Active
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