CN217119822U - Improved micro-heat regeneration dryer - Google Patents
Improved micro-heat regeneration dryer Download PDFInfo
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- CN217119822U CN217119822U CN202220115766.4U CN202220115766U CN217119822U CN 217119822 U CN217119822 U CN 217119822U CN 202220115766 U CN202220115766 U CN 202220115766U CN 217119822 U CN217119822 U CN 217119822U
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- valve
- pipeline
- tower
- nitrogen
- dryer
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- 230000008929 regeneration Effects 0.000 title abstract description 23
- 238000011069 regeneration method Methods 0.000 title abstract description 23
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 48
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 22
- 230000001172 regenerating effect Effects 0.000 claims abstract description 18
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 5
- 239000007789 gas Substances 0.000 abstract description 4
- 238000004806 packaging method and process Methods 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 abstract 2
- 238000001179 sorption measurement Methods 0.000 description 7
- 230000006872 improvement Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- 239000003463 adsorbent Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920006052 Chinlon® Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
An improved micro-thermal regenerative dryer comprising: the tower A and the tower B are provided with air inlet pipelines at the bottoms and air outlet pipelines at the tops; the tops of the tower A and the tower B are also connected with a flow-limiting pore plate and a regenerative heater, and a first pipeline and a second pipeline which are connected in parallel are arranged between the flow-limiting pore plate and the regenerative heater; the first pipeline is connected with a nitrogen inlet pipe, and the second pipeline is connected with a compressed air inlet pipe; a first valve is arranged on a connecting pipeline of the flow-limiting orifice plate and the first pipeline and the second pipeline which are connected in parallel; the first pipeline is sequentially provided with a second valve, a first control valve and a third valve; nitrogen is connected between the second valve and the first control valveAnd a fourth valve is arranged on the gas inlet pipeline and the nitrogen inlet pipeline. The nitrogen loss of the micro-heat regeneration dryer of the utility model can be reduced by 80 percent, and the loss is only 0.70m 3 And/min, the normal packaging and conveying of the slices are ensured, and a large amount of cost is saved.
Description
Technical Field
The utility model belongs to the technical field of 6 polymerization of polyamide fibre section production facility, concretely relates to a little hot regenerative dryer that is used for improvement of 6 polymerization of polyamide fibre section production facility.
Background
The production process flow of the chinlon 6 polymerization slice comprises the following steps: the method comprises the steps of modifier preparation, polymerization, granulation, extraction, drying, cooling, slice conveying and storage, wherein the slice conveying and storage of nitrogen are indispensable, the water content of the nitrogen is high, a micro-thermal regeneration dryer is additionally arranged at the outlet of a nitrogen compressor, the dew point of the nitrogen is reduced, and the water in the nitrogen is reduced.
As shown in fig. 1, the RSXJ type micro thermal regenerative dryer has a slightly more complicated structure than the non thermal regenerative dryer, mainly adding a regenerative heater 8, and two check valves 9-a and 9-B are added at the upper part of the dryer, and the working flows are as follows:
and after the drier is started, the tower A is in adsorption operation, and the tower B is regenerated. Under the control of a preset time sequence, a switching valve 1-A is opened, a switching valve 1-B is closed, a discharge valve 6-B is opened, a discharge valve 6-A is closed, wet air enters a tower A, and dried air is discharged into a downstream pipeline through a check valve 4-A; part of the dry compressed air flows into a regeneration heater 8 through the orifice plate 5 under the action of pressure difference, is heated to a set temperature and enters the tower B to desorb the wet adsorbent, so that the adsorbent is regenerated. The moist regeneration air is discharged to the atmosphere through the discharge valve 6-B and the muffler 7. This regeneration phase is referred to as the "heating phase";
after the heating regeneration lasts for a period of time, the temperature of the outlet regeneration air reaches a set value, and the regeneration air heater stops heating. Unheated regenerated dry air enters the tower B to cool the adsorption bed layer, so that the adsorption bed layer is recovered to the temperature of the adsorption bed layer, and the phase is called a cold blowing phase. After the cold blowing is finished, the tower B carries out pressure equalization, and finally the whole regeneration process is finished.
After a micro-thermal regeneration dryer is additionally arranged at the outlet of the nitrogen compressor, the loss of nitrogen is large, and the gas flow treated by the adsorption dryer is 40m 3 And/min, the maximum gas consumption in the regeneration process can reach 9%, so that the pressure of a slice conveying and storing system is insufficient, slice conveying and packaging operations cannot be performed, the waste of nitrogen is large, and the production cost is high.
Disclosure of Invention
The utility model aims to solve the technical problem that a little heat regeneration desiccator of improvement is provided, reduces the nitrogen gas consumption volume, practices thrift the cost.
The utility model discloses a realize like this:
an improved micro-thermal regenerative dryer comprising: the tower A and the tower B are provided with air inlet pipelines at the bottoms and air outlet pipelines at the tops; the tops of the tower A and the tower B are also connected with a flow-limiting orifice plate and a regenerative heater,
a first pipeline and a second pipeline which are connected in parallel are arranged between the flow-limiting orifice plate and the regenerative heater; the first pipeline is connected with a nitrogen inlet pipe, and the second pipeline is connected with a compressed air inlet pipe;
a first valve is arranged on a connecting pipeline of the flow limiting orifice plate and the first pipeline and the second pipeline which are connected in parallel;
the first pipeline is sequentially provided with a second valve, a first control valve and a third valve; a nitrogen gas inlet pipeline is connected between the second valve and the first control valve, and a fourth valve is arranged on the nitrogen gas inlet pipeline;
a fifth valve, a second control valve and a sixth valve are sequentially arranged on the second pipeline; a compressed air inlet pipeline is connected between the fifth valve and the second control valve, and a seventh valve is arranged on the compressed air inlet pipeline;
and the first control valve and the second control valve are both connected with a time controller switch.
Further, the first valve, the second valve, the third valve, the fourth valve, the fifth valve, the sixth valve and the seventh valve are all DN25 ball valves.
Further, silencers are arranged at the bottoms of the tower A and the tower B.
The utility model has the advantages that: improved micro-heat regeneration dryer gas treatment amount of 40m 3 Min, regeneration loss at 3.6m 3 Min, after improvement, the consumption of nitrogen can be reduced by 80 percent without considering the consumption of compressed air, and the consumption is only 0.70m 3 And/min, the normal packing and conveying of the slices are ensured, and a large amount of cost is saved.
Drawings
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of an RSXJ type micro-thermal regenerative dryer.
Fig. 2 is a schematic structural view of the improved micro-thermal regeneration dryer of the present invention.
Detailed Description
As shown in fig. 2, an improved micro-thermal regeneration dryer includes: the tower A and the tower B are provided with air inlet pipelines at the bottoms and air outlet pipelines at the tops; the tops of the tower A and the tower B are also connected with a flow-limiting orifice plate 5 and a regenerative heater 8.
A first pipeline and a second pipeline which are connected in parallel are arranged between the flow-limiting orifice plate 5 and the regenerative heater 8; the first pipeline is connected with the nitrogen inlet pipe, and the second pipeline is connected with the compressed air inlet pipe.
And a first valve 11 is arranged on a connecting pipeline of the flow-limiting orifice plate 5 and the first pipeline and the second pipeline which are connected in parallel.
The first pipeline is sequentially provided with a second valve 12, a first control valve 21 and a third valve 13; a nitrogen inlet pipeline is connected between the second valve 12 and the first control valve 21, and a fourth valve 14 is arranged on the nitrogen inlet pipeline;
a fifth valve 15, a second control valve 22 and a sixth valve 16 are sequentially arranged on the second pipeline; a compressed air inlet pipeline is connected between the fifth valve 15 and the second control valve 22, and a seventh valve 17 is arranged on the compressed air inlet pipeline;
the first control valve 21 and the second control valve 22 are both connected with a time controller switch.
The first valve 11, the second valve 12, the third valve 13, the fourth valve 14, the fifth valve 15, the sixth valve 16 and the seventh valve 17 are all DN25 ball valves.
And silencers 7 are arranged at the bottoms of the tower A and the tower B.
The first valve 11 is in a closed state and mainly cuts off process circulating nitrogen, the second valve 12, the third valve 13, the fifth valve 15 and the sixth valve 16 are in a normally open state, when the control valves need to be overhauled and closed, the micro-thermal regeneration dryer is required to be closed once every 8 hours, when the micro-thermal regeneration dryer starts to operate, firstly, compressed air is introduced, the second control valve 22 is opened, the compressed air is heated by the heater 8 and then takes away moisture of the adsorbent, after moisture adsorption is completed, the second control valve 22 is closed by a set time switch, the first control valve 21 is opened, oxygen replacement and cooling are carried out on the whole adsorption bed layer by using nitrogen, the whole regeneration is completed, the standby platform is switched to be operated for the next time, and the compressed air is introduced to replace the nitrogen, so that energy conservation and consumption reduction are achieved.
The improved micro-heat regeneration dryer of the utility model treats the air flow of 40m 3 Min, regeneration loss at 3.6m 3 Min, after improvement, the consumption of nitrogen can be reduced by 80 percent without considering the consumption of compressed air, and the consumption is only 0.70m 3 And/min, the normal packing and conveying of the slices are ensured, and a large amount of cost is saved.
The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications made by those skilled in the art should not be construed as departing from the scope of the present invention.
Claims (3)
1. An improved micro-thermal regenerative dryer comprising: the tower A and the tower B are provided with air inlet pipelines at the bottoms and air outlet pipelines at the tops; the top of tower A and tower B still connects current-limiting orifice plate and regenerative heater, its characterized in that:
a first pipeline and a second pipeline which are connected in parallel are arranged between the flow-limiting orifice plate and the regenerative heater; the first pipeline is connected with a nitrogen inlet pipe, and the second pipeline is connected with a compressed air inlet pipe;
a first valve is arranged on a connecting pipeline of the flow limiting orifice plate and the first pipeline and the second pipeline which are connected in parallel;
the first pipeline is sequentially provided with a second valve, a first control valve and a third valve; a nitrogen gas inlet pipeline is connected between the second valve and the first control valve, and a fourth valve is arranged on the nitrogen gas inlet pipeline;
a fifth valve, a second control valve and a sixth valve are sequentially arranged on the second pipeline; a compressed air inlet pipeline is connected between the fifth valve and the second control valve, and a seventh valve is arranged on the compressed air inlet pipeline;
and the first control valve and the second control valve are both connected with a time controller switch.
2. An improved micro thermal regenerative dryer as recited in claim 1, further comprising: the first valve, the second valve, the third valve, the fourth valve, the fifth valve, the sixth valve and the seventh valve are all DN25 ball valves.
3. An improved micro thermal regenerative dryer as recited in claim 1, further comprising: and silencers are arranged at the bottoms of the tower A and the tower B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220115766.4U CN217119822U (en) | 2022-01-17 | 2022-01-17 | Improved micro-heat regeneration dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220115766.4U CN217119822U (en) | 2022-01-17 | 2022-01-17 | Improved micro-heat regeneration dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217119822U true CN217119822U (en) | 2022-08-05 |
Family
ID=82620574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220115766.4U Active CN217119822U (en) | 2022-01-17 | 2022-01-17 | Improved micro-heat regeneration dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217119822U (en) |
-
2022
- 2022-01-17 CN CN202220115766.4U patent/CN217119822U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 301 Houcuo, Zhangliu Village, Jiangtian, Changle District, Fuzhou, 350200, Fujian Province Patentee after: Fujian Liheng Nylon Industry Co.,Ltd. Country or region after: China Address before: 350218 Binhai Industrial Zone, Changle City, Fuzhou City, Fujian Province Patentee before: CHANGLE LIHENG POLYAMIDE TECHNOLOGY Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |