CN219517877U - Nitrogen closed cycle regeneration organic medium dewatering device - Google Patents
Nitrogen closed cycle regeneration organic medium dewatering device Download PDFInfo
- Publication number
- CN219517877U CN219517877U CN202320488836.5U CN202320488836U CN219517877U CN 219517877 U CN219517877 U CN 219517877U CN 202320488836 U CN202320488836 U CN 202320488836U CN 219517877 U CN219517877 U CN 219517877U
- Authority
- CN
- China
- Prior art keywords
- adsorption tower
- shell
- inlet
- valve
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Separation Of Gases By Adsorption (AREA)
Abstract
The utility model discloses a nitrogen closed cycle regenerated organic medium dehydration device, which belongs to the field of organic solvent dehydration, and comprises an adsorption tower A, an adsorption tower B, a circulating fan, a heater, a hydrocyclone and a water cooler, wherein the circulating fan is used for regenerating the adsorption tower B and the adsorption tower A; and the cold medium outlets of the heater are respectively connected with the discharge ports of the adsorption tower A and the adsorption tower B, the feed inlets of the adsorption tower A and the adsorption tower B are respectively connected with the hot medium inlets of the water cooler, and nitrogen is preheated through the shell pass, so that the energy consumption of the heater is greatly reduced, and the problems of poor dehydration effect and high dehydration energy consumption when the organic medium of the existing dehydration device is dehydrated are solved.
Description
Technical Field
The utility model belongs to the field of organic solvent dehydration, and particularly relates to a nitrogen closed cycle regeneration organic medium dehydration device.
Background
The perfluoro-hexanone must be active under anhydrous conditions in use, while normal fluorine mixed organic media are very prone to absorb moisture in air at room temperature, requiring dehydration treatment prior to use. Chinese patent CN 114588663a discloses a deep dehydration device for organic solvent, which dehydrates tetrahydrofuran, the organic solvent firstly passes through an adsorption tower to adsorb moisture, enters into a post filter for output, and the adsorbed organic solvent enters into a liquid storage tank for storage. When the adsorption tower is used for adsorbing, liquid enters the adsorption tower from top to bottom, when the adsorbent at the upper layer is adsorbed to the adsorbent at the lower layer after saturation, the efficiency is difficult to maximize, the dehydration process is time-consuming and labor-consuming, and the dehydration effect on acetonitrile-perfluorinated hexanone organic medium is not obvious by adopting the adsorption tower. In order to solve the problems, the inventor of the utility model provides a nitrogen closed cycle regeneration organic medium dehydration device on the basis of an organic solvent deep dehydration device disclosed in CN 114588663A.
Disclosure of Invention
In order to solve the defects of the prior art, the utility model aims to provide the nitrogen closed-loop circulation regeneration organic medium dehydration device, which has good dehydration effect on organic medium (acetonitrile-perfluorinated hexanone) and low energy consumption in the dehydration process.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
on the one hand, the nitrogen closed cycle regenerated organic medium dehydration device comprises an adsorption tower A, an adsorption tower B, a post-filter, a heater, a circulating fan, a liquid-gas separator and a water cooler, wherein a nitrogen inlet is connected with a circulating fan gas inlet, a circulating fan gas outlet is connected with a heater cold medium inlet, a heat medium outlet of the water cooler is connected with a liquid-gas separator material inlet, and a material outlet is connected with the circulating fan gas inlet;
the material outlets of the adsorption tower A and the adsorption tower B are connected with the material inlet of the rear filter, the material inlets of the adsorption tower A and the adsorption tower B are connected with the material inlet, the material outlet of the rear filter is connected with the material inlet, and the impurity outlet of the rear filter is connected with the sewage outlet;
the cold medium outlets of the heater are respectively connected with the discharge outlets of the adsorption tower A and the adsorption tower B, and the feed inlets of the adsorption tower A and the adsorption tower B are respectively connected with the hot medium inlets of the water cooler.
The dehydration device of the utility model has a double-tower structure of the adsorption tower, and the regeneration and adsorption are simultaneously carried out, so that the dehydration device can continuously work and continuously output clean and dry organic medium. The raw materials can be accurately adjusted to enter the adsorption tower A or the adsorption tower B through opening and closing of the valve, and the operation is simple. Meanwhile, during regeneration, the nitrogen gas flows away from the shell of the adsorption tower to exchange heat, and is preheated, so that the energy consumption of the heater can be effectively reduced.
When the adsorbent in one adsorption tower is saturated, the raw material pipeline connected with the adsorption tower is closed, at the moment, the other adsorption tower is opened, the new adsorption tower is utilized to continuously absorb moisture to the organic medium, the saturated adsorption tower is communicated with the circulating fan, the heater and the water cooler through valve switching, so that the moisture adsorbed by the adsorbent is desorbed and discharged, and the adsorption tower is waited to be used again, and the two adsorption towers are used in a staggered mode, so that the dehydration efficiency of the organic medium is greatly improved, and the dehydration effect is better.
Preferably, the adsorption tower A and the adsorption tower B are both composed of a shell and a filter element;
the shell consists of an upper cover, a lower cover and a shell, wherein the shell is positioned between the upper cover and the lower cover, a feed inlet is arranged on the lower cover, a discharge outlet is arranged on the upper cover, a shell inlet and a shell outlet are respectively arranged on two sides of the shell, and the position of the shell outlet is lower than that of the shell inlet;
the filter element consists of an upper tube plate, a lower tube plate, an upper tube cap, a lower tube cap and a tube bundle; the upper tube plate is positioned between the shell and the upper cover, the lower tube plate is positioned between the shell and the lower cover, the tube bundle is positioned between the upper tube plate and the lower tube plate, the contact parts of the tube bundle and the upper tube plate and the lower tube plate are respectively provided with a tube cap, and the ceramic balls and the molecular sieves are filled in the tube bundle.
Compared with a fixed bed type adsorption tower, the utility model can prevent bias flow from occurring when the medium flows, and increase the service efficiency of the adsorbent. When the adsorption tower adsorbs, the organic medium fluid enters the adsorption tower from a feed inlet of the adsorption tower, and enters a pipe bundle of the adsorption tower through a pipe cap for adsorption; the organic medium flows out from the top discharge port of the adsorption tower and enters the post-filter through a pipeline.
Further preferably, a thin stainless steel net is laid at the bottom of the tube bundle, and the mesh diameter of the thin stainless steel net is smaller than the hollow diameters of the porcelain ball and the tube cap.
Further preferably, a fine stainless steel net is paved on the top of the tube bundle, and the mesh diameter of the fine stainless steel net is smaller than the diameter of the molecular sieve.
Further preferably, gaskets are arranged at the contact part of the shell and the upper tube plate and at the contact part of the upper cover and the upper tube plate. Gaskets are arranged at the contact part of the shell and the lower tube plate and at the contact part of the lower cover and the lower tube plate. The presence of the gasket ensures the tightness of the adsorption tower.
Further preferably, the inlet of the shell of the adsorption tower A is connected with the pipe orifice at the top of the adsorption tower A through a pipeline II, and the outlet of the shell of the adsorption tower A is connected with the pipe orifice at the top of the adsorption tower A through a pipeline I; the outlet of the shell of the adsorption tower B is connected with the top pipe orifice of the adsorption tower B through a pipeline III, and the inlet of the shell of the adsorption tower B9 is connected with the top pipe orifice of the adsorption tower B through a pipeline IV.
After the adsorption tower regenerates, through cutting off the pipeline of heater, nitrogen gas gets into the adsorption tower shell side through pipeline one or pipeline three earlier and cools down, and nitrogen gas part reentrant adsorption tower tube side cools down for adsorption tower shell side and tube side cool down simultaneously, improve cooling rate, be favorable to improving the adsorption efficiency of adsorption tower.
Still preferably, the dehydration device further comprises a storage tank A and a storage tank B, wherein the raw material inlet is respectively connected with the material inlet of the storage tank A and the material inlet of the storage tank B, the material outlet of the storage tank A is connected with the material inlet of the adsorption tower A, and the material outlet of the storage tank B is connected with the material inlet of the adsorption tower B; the material outlet of the storage tank A and the material outlet of the storage tank B are respectively connected with the purified raw material outlet, namely a finished raw material outlet. On-line detectors are arranged in the storage tank A and the storage tank B, so that whether the organic medium is qualified or not can be conveniently and rapidly detected.
Preferably, the nitrogen inlet is also connected with the material outlet of the adsorption tower A and the material outlet of the adsorption tower B respectively.
Preferably, the heater is provided with a bypass pipeline with a valve, and the bypass pipeline is used for cutting off the heater when the adsorption tower regenerates and cools. The heater is cut off, the temperature of the cooling nitrogen is not increased, the cooling nitrogen enters the adsorption tower to rapidly cool the adsorption tower, and the adsorption efficiency of the adsorption tower is improved.
Preferably, the liquid-gas separator is a cyclone separator. Compared with the conventional gas-liquid separator, the cyclone liquid separator has the advantages that the gas-liquid separation efficiency is increased, the load of a fan is reduced, and compared with the original flow and the gas-liquid separator, the load of the fan is reduced by 1/3.
Preferably, the circulating fan is a Roots fan. The circulating fan adopts the Roots fan, has small volume, can work under equal pressure (pipe network pressure) when the adsorption tower is regenerated, has a silencing effect, and has the noise less than or equal to 75dB at the position 1m away from the equipment.
The heater adopts an integrated assembly structure, has good sealing performance, can adopt stainless steel materials as an electric heating element, has a power margin of 30%, can ensure that equipment can normally and safely run under extreme working conditions, and ensures that the service life is longer than 10 years.
The beneficial effects of the utility model are as follows:
according to the nitrogen closed-loop circulation regenerated organic medium dehydration device provided by the utility model, a dehydration dryer in a conventional process is changed into a tube type from a fixed bed type, so that bias current is prevented when a medium flows, the use efficiency of an adsorbent is increased, and the adsorption efficiency is increased by 20%. And the line crossing is added to the heater, and after the analysis is completed, the cooling flow step of the adsorbent is added, so that the effects of saving energy and reducing consumption are achieved, and the energy consumption is reduced by 25%. Meanwhile, the first pipeline, the second pipeline, the third pipeline and the fourth pipeline are added in the adsorption tower, and during cooling, nitrogen firstly goes through the shell side of the adsorption tower and then goes through the tube side, and the tube side and the shell side of the adsorption tower are cooled simultaneously, so that the adsorption effect of the adsorption tower is improved. And the cyclone liquid separator is adopted, so that the gas-liquid separation efficiency is improved, the load of the circulating fan is reduced, and compared with a liquid-gas separator without a liquid-gas separator and a conventional liquid-gas separator, the load of the circulating fan is reduced by 1/3. Meanwhile, the adsorbed organic medium enters the liquid storage tank for storage, so that the water content in the organic medium can be reduced to the minimum by carrying out cyclic dehydration in the follow-up process.
In conclusion, the nitrogen closed cycle regenerated organic medium dehydration device provided by the utility model has good dehydration effect on the organic medium acetonitrile-perfluorinated hexanone and low energy consumption.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
FIG. 1 is a block diagram of a nitrogen closed cycle regenerated organic medium dehydration plant according to example 1 of the present utility model;
fig. 2 is a schematic diagram of the adsorption tanks a and B in fig. 1 according to the present utility model.
Wherein, 1: raw material inlet, 2: purified raw material outlet, 3: meter air inlet, 4: drain, 5: nitrogen inlet, 51: nitrogen inlet valve, 52: pressure stabilizing valve, 53: vent, 54: decompression nitrogen valve, 6: storage tanks a,61: valves-A1, 62: circulation pumps a,63: sampling ports a,64: valve-A2, 65: valves-A3, 7: storage tanks B,71: valve-B1, 72: circulation pump B,73: sampling ports B,74: valve-B2, 75: valves-B3, 8: adsorption tanks a,81: valve-C1, 82: valve-C2, 83: valve-C3, 84: valve-C4, 85: valve-C5, 86: valve-C6, 87: valve-C7, 9: adsorption tanks B,91: valve-D1, 92: valve-D2, 93: valve-D3, 94: valve-D4, 95: valve-D5, 96: valve-D6, 97: valve-D7, 98: housing outlet, 99: upper cover, 910: tube sheet, 911: tube bundle, 912: adsorbent, 913: housing, 914: lower cover, 915: cap, 916: gasket, 917: porcelain ball, 918: shell side, 919: feed inlet, 920: discharge gate, 921: housing inlet, 10: post filter, 101: filtrate valve, 11: circulation fan, 12: heater, 121: valve-F1, 122: valve-F2, 123: valves-F3, 13: hydrocyclone, 131: blow-down valve, 14: a water cooler.
Detailed Description
In order to enable those skilled in the art to more clearly understand the technical scheme of the present utility model, the technical scheme of the present utility model will be described in detail with reference to specific embodiments.
In the following examples, the adsorption tower body and the high-temperature pipeline are reliably insulated, rock wool is adopted for insulation, and stainless steel decorative plates or embossed aluminum plates are wrapped.
Example 1
As shown in fig. 1 and 2, the nitrogen closed cycle regeneration organic medium dehydration device comprises an adsorption tower A8, an adsorption tower B9, a post-filter 10, a circulating fan 11, a heater 12, a hydrocyclone 13, a water cooler 14, a storage tank A6, a circulating pump a62, a storage tank B7 and a circulating pump B72;
the feed inlet of the adsorption tower A8 and the feed inlet of the adsorption tower B9 are connected with the raw material inlet 1 through raw material pipelines, a valve-A1 61 is arranged on a pipeline for connecting the feed inlet of the adsorption tower A8 with the raw material inlet 1, a valve-B1 71 is arranged on a pipeline for connecting the feed inlet of the adsorption tower B9 with the raw material inlet 1, and the opening or closing of the valve-A1 61 and the valve-B1 71 controls raw materials to enter the adsorption tower A8 or the adsorption tower B9; the discharge port of the adsorption tower A8 is connected with the material inlet of the post-filter 10 through a pipeline with a valve-C1 81, and the discharge port of the adsorption tower B9 is connected with the post-filter 10 through a pipeline with a valve-D1 91; the material outlet of the post-filter 10 is connected with the raw material inlet 1 to form a closed loop so as to circularly dehydrate the raw material in the device; the bottom impurity outlet of the post-filter 10 is connected with the sewage outlet 4.
The outlet of the shell of the adsorption tower A8 is connected with the material outlet at the top of the adsorption tower A8 through a first pipeline, and the inlet of the shell of the adsorption tower A8 is connected with the material outlet at the top of the adsorption tower A8 through a second pipeline; the outlet of the shell of the adsorption tower B9 is connected with the material outlet at the top of the adsorption tower B9 through a pipeline III, and the inlet of the shell of the adsorption tower B9 is connected with the material outlet at the top of the adsorption tower B9 through a pipeline IV.
One end of the valve-A1 61 is connected with the raw material inlet 1 through a pipeline, the other end is connected with a feed inlet of the storage tank A6, a discharge outlet of the storage tank A6 is connected with a feed inlet of the circulating pump A62, and a discharge outlet of the circulating pump A62 is connected with the valve-A2 64 and a feed pipe at the bottom of the adsorption tank A8. One end of the valve-B1 is connected with the raw material inlet 1 through a pipeline, the other end of the valve-B1 is connected with a feed inlet of the storage tank B7, a discharge outlet of the storage tank B7 is connected with a feed inlet of the circulating pump B72, and a discharge outlet of the circulating pump B72 is connected with the valve-B2 74 and a feed pipe at the bottom of the adsorption tank B9. The circulating pump A62 and the circulating pump B72 provide enough power for the circulating dehydration of the organic medium in the device, and the adsorption time can be controlled by controlling the flow of the circulating pump A and the circulating pump B.
A sampling port A63 and a valve-A365 are arranged on a pipeline of the discharge port of the circulating pump A62 connected with the bottom of the adsorption tank A8; the pipeline connecting the discharge port of the circulating pump B72 with the bottom of the adsorption tank B9 is provided with a sampling port B73 and a valve-B375. The arrangement of the sampling port A and the sampling port B facilitates the detection of whether the organic medium in the device is qualified or not.
The purified raw material outlet 2 is connected with a raw material pipeline between a valve-A1 61 and a feed inlet of an adsorption tower A8 through a pipeline with a valve-A2 64, is also connected with a raw material pipeline between a valve-B1 71 and a feed inlet of an adsorption tower B9 through a pipeline with a valve-B2 74, and discharges qualified raw materials out of the device through opening the valve-A2 64 or the valve-B2 74.
The nitrogen inlet 5 is connected with an air inlet of the circulating fan 11, an air outlet of the circulating fan 11 is connected with a cold medium inlet of the heater 12, a valve-F1 121 is arranged on a pipeline between the air outlet of the circulating fan 11 and the cold medium inlet of the heater 12, a valve-F2 122 is arranged at the cold medium outlet of the heater 12, a line crossing pipeline five is arranged on the heater, and a valve-F3 123 is arranged on the pipeline five. The arrangement of the pipeline five can control whether the gas conveyed by the circulating fan 11 enters the heater 12 or not through the valves-F1 121, -F2 122 and-F3123. When the valves-F1 121 and-F2 122 are opened and the valve-F3 123 is closed, the gas enters the heater 12 to be heated, and is conveyed into the adsorption tank after being heated. When the valve-F3 123 is opened, the valve-F1 121 and the valve-F2 122 are closed, the heater 12 is cut off, and gas directly enters the adsorption tower through the fifth pipeline, so that the adsorption tower is cooled, and the adsorption tower is cooled by directly utilizing nitrogen after the analysis of the adsorption tower is finished.
The heat medium inlet of the water cooler 14 is connected with one end of a pipeline with a valve-C7 87 and one end of a pipeline with a valve-D797 which are connected in parallel, one end of the pipeline with the valve-C7 87, which is far away from the heat medium inlet of the water cooler 14, is connected with a valve-A2 84 and an intermediate pipeline of a feed inlet of the adsorption tower A8, and one end of the pipeline with the valve-D7 98, which is far away from the heat medium inlet of the water cooler 14, is connected with a valve-B2 74 and an intermediate pipeline of the feed inlet of the adsorption tower B9; the outlet of the heat medium of the water cooler 14 is connected with the inlet of the hydrocyclone 13, the gas outlet of the hydrocyclone 13 is connected with the air inlet of the circulating fan 11, and the liquid outlet of the hydrocyclone 13 is connected with the sewage outlet 4. The gas outlet of the hydrocyclone 13 is also connected with the vent 53 through a safety valve 54, and when the air pressure in the device is too high, the gas separated by the hydrocyclone 13 is discharged through the vent, so that the safety of the device is improved.
The nitrogen inlet 5 is respectively connected with one end of a pipeline with a valve-C3 83 and one end of a pipeline with a valve-C3 83 which are connected in parallel, one end of the pipeline with the valve-C3 83, which is far away from the nitrogen inlet 5, is connected with the discharge port of the adsorption tower A8, and one end of the pipeline with the valve-D3 93, which is far away from the nitrogen inlet 5, is connected with the discharge port of the adsorption tower B9. The arrangement of the valve-C3 and the valve-C3 83 is convenient for analysis and after the cooling of the adsorption tower is completed, nitrogen directly enters the tube pass of the adsorption tower to cool the tube pass of the adsorption tower, thereby being beneficial to improving the adsorption efficiency of the adsorption tower.
Wherein, the adsorption tower A8 and the adsorption tower B9 are both composed of a shell and a filter element;
the casing comprises an upper cover 99, a lower cover 914 and a casing 913, the casing 913 is located between the upper cover 99 and the lower cover 914, the lower cover 914 is provided with a feeding port 919, the upper cover 99 is provided with a discharging port 920, two sides of the casing 913 are respectively provided with a casing inlet 921 and a casing outlet 98, and the position of the casing outlet 98 is lower than that of the casing inlet 921;
the filter element consists of an upper tube plate 910, a lower tube cap 915, and a tube bundle 911; the upper tube plate 910 is located between the shell 913 and the upper cover 99, and gaskets 916 are arranged at the contact part of the shell 913 and the upper tube plate 910 and the contact part of the upper cover 99 and the upper tube plate 910; the lower tube plate 910 is positioned between the shell 913 and the lower cover 914, and gaskets 916 are arranged at the contact part of the shell 913 and the lower tube plate 910 and the contact part of the lower cover 914 and the lower tube plate 910; the tube bundle is positioned between the upper tube plate 910 and the lower tube plate 910, an upper tube cap 915 and a lower tube cap 915 are arranged at the contact part of the tube bundle 911 and the upper tube plate 910, and the existence of the upper tube cap 915 and the lower tube cap 915 enables an organic medium to pass through; the inside of the tube bundle 911 is filled with porcelain balls and molecular sieves. The diameter of the porcelain ball in the absorption tower tube bundle 911 is larger than the aperture of the tube cap 915, and the porcelain ball is paved at the bottom of the tube bundle 911, has a height of about 30cm, has a diameter larger than the diameter of the molecular sieve, and can effectively prevent the molecular sieve from falling off.
A thin stainless steel net is laid at the bottom of the tube bundle 911, and the mesh diameter is smaller than the hollow diameters of the porcelain ball and the tube cap, so that the porcelain ball is prevented from escaping. A fine stainless steel net is paved on the top of the tube bundle 911, and the mesh diameter is smaller than the diameter of the molecular sieve, so that the molecular sieve is prevented from escaping.
Example 2
A nitrogen closed cycle regeneration organic medium dehydration method adopts the nitrogen closed cycle regeneration organic medium dehydration device described in the embodiment 1, the adsorption tower A is produced, the adsorption tower B is regenerated, and the dehydration device works with the working parameters as shown in the following table 1.
TABLE 1
Wherein, valve-B1 71, valve-B2 74, valve-B3 75, valve-A2 64, valve-C2 82, valve-C3 83, valve-C5 86, valve-C6 86, valve-C7 87, valve-D1 91, valve-D3 93, valve-D5 95, valve-D6 96, valve-F3 123 are closed; valves-A1 61, valve-A3 65, valve-C1 81, valve-C4 84, valve-D2 92, valve-D4 94, valve-D7 97, blowdown valve 131, pressure reducing nitrogen valve 54, valve-F1 121, valve-F2 122, nitrogen inlet valve 51, pressure stabilizing valve 52, filtrate valve 101 are open.
(1) Adsorption flow of adsorption tank a: the organic medium enters from a raw material inlet, enters into a storage tank A6 through a valve-A1 61, establishes the liquid level to 40-60%, and starts a circulating pump A62 (by controlling the flow of the pump and the adsorption time), and enters into an adsorption tower A8 through a valve-A3 65 for adsorption; then the organic medium enters the post filter 10 through the valve-C4 and the valve-C1 81, and the carried impurities and dust are further removed through the post filter 10 and then enter the storage tank A6 for circulation until the organic medium is qualified; after passing, valve-A3 65 is closed, valve-A2 64 is opened, the product is sent out, and the product is sent to the passing tank through the purified raw material outlet 2.
(2) Regeneration flow of adsorption tank B: while the adsorption tower A8 works, the adsorption tower B9 regenerates, and the whole program is automatically controlled by the PLC, and the flow is as follows: the nitrogen gas passes through the nitrogen inlet valve 51, the pressure stabilizing valve 52, the circulating fan 11, the heater 12, the valve-D2 92, the valve-D4 94, the adsorption tower B9 (for analysis regeneration), the valve-D797, the water cooler 14, the cyclone separator 13, the liquid passes through the blow-down valve 131 to be sent out, and the gas phase circulates to the circulating fan 11 for circulation heating regeneration again. And when the temperature is raised to 125 ℃ for analysis, keeping the temperature for 1 hour, and judging that regeneration is finished.
(3) Cooling flow of the adsorption tank B:
after the regeneration of the adsorption tank B9 is finished and before the adsorption dehydration drying is started, the adsorption tank B9 is cooled, so that the adsorption effect (adsorption is an exothermic process) is improved;
after the regeneration of the adsorption tank B9 is completed, before the adsorption dehydration is started, the regeneration process is continued, the valves-F1 and-F2 are closed, the valve-F3 is opened, and the heater is cut off; valve-D5 and valve-D6 are opened, valve-D4 is closed, the shell side and tube side of adsorption tower B9 are simultaneously cooled, and the processes are connected in series.
The flow is as follows: nitrogen is sent out from the nitrogen inlet valve 51, the pressure stabilizing valve 52, the circulating fan 11, the valve-F3 123, the valve-D292, the valve-D5 95, the adsorption tower B9 shell side, the valve-D6 96, the adsorption tower B9 tube side, the valve-D7 97, the water cooler 14, the hydrocyclone 13 and the liquid through the blow-down valve 131, and the gas phase is circulated to the circulating fan 11 for circulation heating regeneration again.
And cooling the shell side temperature of the tube side of the adsorption tank B9 until the shell side temperature is consistent with that of the inlet nitrogen, and entering the next adsorption process after the cooling is finished.
The adsorption tower A8 and the adsorption tower B9 have a linkage relation, the product of the adsorption tower A8 is qualified, the analysis of the adsorption tower B9 is completed, meanwhile, the cooling of the adsorption tower B9 is completed, and after the two conditions are all satisfied, the adsorption tower A8 is switched to the adsorption tower B9 for adsorption flow, and the analysis flow is carried out by the adsorption tower A8.
The regeneration flow of the adsorption tower A, the adsorption flow of the adsorption tower B is similar to the adsorption flow of the adsorption tower A and the regeneration flow of the adsorption tower B, and corresponding valves are opened, so that the detailed description is omitted.
According to the nitrogen closed cycle regeneration organic medium dehydration device, the two adsorption towers are used in a staggered mode, so that the dehydration efficiency of the organic medium acetonitrile-perfluorohexanone is greatly improved, the dehydration effect is better, in addition, during regeneration, nitrogen has the waste heat of the shell side of the adsorption tower, the energy consumption of a heater is greatly reduced, and meanwhile, the cyclone separator is low in energy consumption and high in efficiency.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The nitrogen closed cycle regenerated organic medium dehydration device comprises an adsorption tower A, an adsorption tower B, a post-filter, a heater, a circulating fan, a liquid-gas separator and a water cooler, wherein a nitrogen inlet is connected with a circulating fan gas inlet, a circulating fan gas outlet is connected with a heater cold medium inlet, a heating medium outlet of the water cooler is connected with a liquid-gas separator material inlet, and a liquid-gas separator gas outlet is connected with the circulating fan gas inlet;
the cold medium outlets of the heater are respectively connected with the discharge outlets of the adsorption tower A and the adsorption tower B, and the feed inlets of the adsorption tower A and the adsorption tower B are respectively connected with the hot medium inlets of the water cooler.
2. The nitrogen closed cycle regenerated organic medium dehydration device according to claim 1, wherein the adsorption tower A and the adsorption tower B are both composed of a shell and a filter element;
the shell consists of an upper cover, a lower cover and a shell, wherein the shell is positioned between the upper cover and the lower cover, a feed inlet is arranged on the lower cover, a discharge outlet is arranged on the upper cover, a shell inlet and a shell outlet are respectively arranged on two sides of the shell, and the position of the shell outlet is lower than that of the shell inlet;
the filter element consists of an upper tube plate, a lower tube plate, an upper tube cap, a lower tube cap and a tube bundle; the upper tube plate is positioned between the shell and the upper cover, the lower tube plate is positioned between the shell and the lower cover, the tube bundle is positioned between the upper tube plate and the lower tube plate, the contact parts of the tube bundle and the upper tube plate and the lower tube plate are respectively provided with a tube cap, and the ceramic balls and the molecular sieves are filled in the tube bundle.
3. The nitrogen closed cycle regenerated organic medium dewatering device according to claim 2, wherein a thin stainless steel net is laid at the bottom of the tube bundle, and the mesh diameter of the thin stainless steel net is smaller than the hollow diameters of the porcelain ball and the tube cap.
4. The nitrogen closed cycle regenerated organic medium dewatering device according to claim 2, wherein a fine stainless steel mesh is laid on top of the tube bundle, and the mesh diameter of the fine stainless steel mesh is smaller than the diameter of the molecular sieve.
5. The nitrogen closed cycle regenerated organic medium dewatering device as claimed in claim 2, wherein gaskets are arranged at the contact part of the shell and the upper tube plate and at the contact part of the upper cover and the upper tube plate.
6. The nitrogen closed cycle regenerated organic medium dewatering device as claimed in claim 2, wherein gaskets are arranged at the contact part of the shell and the lower tube plate and at the contact part of the lower cover and the lower tube plate.
7. The nitrogen closed cycle regenerated organic medium dehydration device according to claim 2, wherein the inlet of the shell of the adsorption tower A is connected with the top pipe orifice of the adsorption tower A through a pipeline II, and the outlet of the shell of the adsorption tower A is connected with the top pipe orifice of the adsorption tower A through a pipeline I; the outlet of the shell of the adsorption tower B is connected with the top pipe orifice of the adsorption tower B through a pipeline III, and the inlet of the shell of the adsorption tower B9 is connected with the top pipe orifice of the adsorption tower B through a pipeline IV.
8. The nitrogen closed cycle regenerated organic medium dehydration device according to claim 1, wherein the dehydration device further comprises a storage tank A and a storage tank B, the raw material inlet is respectively connected with the material inlet of the storage tank A and the material inlet of the storage tank B, the material outlet of the storage tank A is connected with the material inlet of the adsorption tower A, and the material outlet of the storage tank B is connected with the material inlet of the adsorption tower B;
the material outlet of the storage tank A and the material outlet of the storage tank B are respectively connected with the purified material outlet.
9. The nitrogen closed cycle regenerated organic medium dehydration device according to claim 1, wherein the nitrogen inlet is also connected with the material outlet of the adsorption tower A and the material outlet of the adsorption tower B respectively;
or, the heater is provided with a bypass pipeline with a valve, and the bypass pipeline is used for cutting off the heater when the adsorption tower regenerates and cools.
10. The nitrogen closed cycle regenerated organic medium dewatering device according to claim 1, wherein the liquid-gas separator is a hydrocyclone, and the circulating fan is a Roots fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320488836.5U CN219517877U (en) | 2023-03-10 | 2023-03-10 | Nitrogen closed cycle regeneration organic medium dewatering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320488836.5U CN219517877U (en) | 2023-03-10 | 2023-03-10 | Nitrogen closed cycle regeneration organic medium dewatering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219517877U true CN219517877U (en) | 2023-08-15 |
Family
ID=87630498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320488836.5U Active CN219517877U (en) | 2023-03-10 | 2023-03-10 | Nitrogen closed cycle regeneration organic medium dewatering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219517877U (en) |
-
2023
- 2023-03-10 CN CN202320488836.5U patent/CN219517877U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101940867B (en) | Zero gas consumption low dew-point waste heat regenerative absorbent type dryer | |
| CN209752529U (en) | Organic waste gas recycling device | |
| CN201404756Y (en) | Tee-valve closed cycle heating regenerative gas dryer | |
| CN219517877U (en) | Nitrogen closed cycle regeneration organic medium dewatering device | |
| CN103480246A (en) | Multifunctional combined-type low-dew-point gas drying device | |
| CN205361039U (en) | Modified for technology pitch smoke treatment device of pitch | |
| CN202460431U (en) | Adsorption drying machine | |
| CN201404757Y (en) | Four-way valve closed cycle heating regenerative gas dryer | |
| CN217662414U (en) | Novel active carbon adsorption concentration catalytic combustion system | |
| CN217662415U (en) | Active carbon adsorption concentration catalytic combustion system | |
| CN203507786U (en) | Multifunctional combined type low dew point gas drying device | |
| CN110538550A (en) | Cyclic regeneration method and device for power plant compressed air drying adsorbent | |
| CN203284374U (en) | Pure integration dehydration device of liquefied hydrocarbon | |
| CN101601959A (en) | A kind of Zero gas consumption low dew point compression heat regeneration absorption compressed air drying method and device thereof | |
| CN201404762Y (en) | Adsorption high-pressure natural gas dehydration unit | |
| CN210845824U (en) | A cyclic regeneration device for power plant's compressed air drying adsorbent | |
| CN206867946U (en) | Semi-open type is the same as the closed dehydration for being combined molecular sieve and regenerating unit | |
| CN102602887B (en) | Equipment and method for recycling cooling capacity of discharged liquid nitrogen from liquid nitrogen wash | |
| CN206613354U (en) | Low-grade fever regenerative adsorptive drier | |
| CN220194433U (en) | Dry desulfurizing device | |
| CN201493043U (en) | Compression heat regeneration adsorption compressed air dryer with zero air consumption and low dew point | |
| CN2723015Y (en) | Low boiling point gas recovering and reusing device | |
| CN210340527U (en) | Seawater water-cooling heatless drying equipment | |
| CN210125272U (en) | Organic waste gas adsorbs recovery system | |
| CN214075855U (en) | Adsorption type compressed gas continuous drying device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |