CN220194427U - Molecular sieve dehydration tower for dehydration treatment of natural gas - Google Patents
Molecular sieve dehydration tower for dehydration treatment of natural gas Download PDFInfo
- Publication number
- CN220194427U CN220194427U CN202321156408.9U CN202321156408U CN220194427U CN 220194427 U CN220194427 U CN 220194427U CN 202321156408 U CN202321156408 U CN 202321156408U CN 220194427 U CN220194427 U CN 220194427U
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- China
- Prior art keywords
- molecular sieve
- tower body
- dehydration
- natural gas
- extrusion
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 239000002808 molecular sieve Substances 0.000 title claims abstract description 46
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 208000005156 Dehydration Diseases 0.000 title claims abstract description 38
- 230000018044 dehydration Effects 0.000 title claims abstract description 38
- 238000006297 dehydration reaction Methods 0.000 title claims abstract description 38
- 239000003345 natural gas Substances 0.000 title claims abstract description 25
- 239000007789 gas Substances 0.000 claims abstract description 38
- 238000001125 extrusion Methods 0.000 claims abstract description 31
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 230000008929 regeneration Effects 0.000 claims abstract description 13
- 238000011069 regeneration method Methods 0.000 claims abstract description 13
- 229920000742 Cotton Polymers 0.000 claims abstract description 12
- 241001233242 Lontra Species 0.000 claims description 19
- 238000009826 distribution Methods 0.000 claims description 13
- 230000008676 import Effects 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 abstract description 8
- 238000007599 discharging Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000003795 desorption Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011802 pulverized particle Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model relates to a molecular sieve dehydration tower for dehydration treatment of natural gas, which comprises a tower body, wherein a lower supporting screen plate and an upper supporting screen plate are arranged in the tower body, a molecular sieve filling layer is arranged between the lower supporting screen plate and the upper supporting screen plate, the left side and the right side of the lower supporting screen plate are obliquely upwards arranged, liquid collecting cotton is arranged in the middle of the bottom of the lower supporting screen plate, a plurality of extrusion blocks are arranged at the bottoms of the liquid collecting cotton, the bottoms of the extrusion blocks are connected with extrusion plates, the bottoms of the extrusion plates are connected with extrusion cylinders, liquid discharging ports are arranged at the left side and the right side of the bottom of the tower body, an exhaust pipe is arranged at the top of the tower body, a first regenerated gas inlet, a first negative pressure suction port and a natural gas inlet pipe are arranged below the lower supporting screen plate on the side wall of the tower body, and a second regenerated gas inlet and a second negative pressure suction port are arranged above the upper supporting screen plate on the side wall of the tower body. The utility model can squeeze and discharge the accumulated liquid, prolong the operation time of molecular sieve dehydration, and can also regenerate the molecular sieve particles in forward and reverse directions, thereby improving the regeneration degree of the molecular sieve particles.
Description
Technical Field
The utility model relates to the technical field of natural gas dehydration equipment, in particular to a molecular sieve dehydration tower for natural gas dehydration treatment.
Background
In the field of natural gas production, molecular sieve dehydration towers are often used for dehydrating natural gas so as to meet the subsequent process requirements. The molecular sieve dehydration is to separate different gases by using the operation method of normal temperature adsorption and temperature rising desorption by utilizing the characteristic that the equilibrium adsorption quantity of the adsorbent is reduced along with the temperature rise.
Molecular sieve particles in the existing molecular sieve dehydration tower are easy to saturate, and a good desorption effect cannot be ensured during regeneration, so that the service performance of the molecular sieve dehydration tower is limited to a certain extent.
Disclosure of Invention
The utility model aims to solve the defects of the prior art and provides a molecular sieve dehydration tower for dehydration treatment of natural gas.
The utility model adopts the following technical scheme to realize the aim:
the utility model provides a molecular sieve dehydration tower for natural gas dehydration, which comprises a tower body, be equipped with the lower support otter board and go up the support otter board in the tower body, be equipped with the molecular sieve filling layer between lower support otter board and the upper support otter board, lower support otter board left and right sides slope upwards sets up, lower support otter board bottom intermediate position is equipped with the liquid collecting cotton, liquid collecting cotton bottom is equipped with a plurality of extrusion pieces, the extrusion piece bottom is connected with the extrusion board, the extrusion board bottom is connected with the extrusion cylinder, the extrusion cylinder is fixed in the tower body bottom, tower body bottom left and right sides is equipped with the leakage fluid dram, the tower body top is equipped with the blast pipe, be equipped with first regeneration gas import below the lower support otter board on the tower body lateral wall, be equipped with second regeneration gas import above last support otter board, second negative pressure suction mouth on the tower body lateral wall, be equipped with the natural gas intake pipe below the lower support otter board.
The blast pipe includes vertical pipe and the horizontal pipe of intercommunication, is equipped with baffle subassembly, humidity transducer and discharge valve in proper order along the gaseous circulation direction in the horizontal pipe.
The baffle assembly comprises a plurality of baffles which are arranged on the inner top wall and the inner bottom wall of the horizontal pipe in a staggered way.
The beneficial effects of the utility model are as follows: the utility model can squeeze and discharge the accumulated liquid, prolong the operation time of molecular sieve dehydration, and can also regenerate the molecular sieve particles in forward and reverse directions, thereby improving the regeneration degree of the molecular sieve particles.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
in the figure: 1-a tower body; 2-a lower supporting screen plate; 3-upper support screen plate; 4-a molecular sieve filling layer; 5-collecting liquid cotton; 6-extruding a block; 7-extruding a plate; 8-an extrusion cylinder; 9, a liquid outlet; 10-exhaust pipe; 11-a first regeneration gas inlet; 12-a first negative pressure suction port; 13-a second regeneration gas inlet; 14-a second negative pressure suction port; 15-a natural gas inlet pipe; 16-a baffle assembly; 17-humidity sensor; 18-an exhaust valve; 19-annular gas distribution pipes; 20-air distribution openings;
the embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
Detailed Description
The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model. The utility model is more particularly described by way of example in the following paragraphs with reference to the drawings. The advantages and features of the present utility model will become more apparent from the following description. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the utility model.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
the molecular sieve dehydration tower for dehydration treatment of natural gas, as shown in fig. 1, comprises a tower body 1, a lower supporting screen 2, an upper supporting screen 3, a molecular sieve filling layer 4, liquid collecting cotton 5, an extrusion block 6, an extrusion plate 7, an extrusion cylinder 8, a liquid outlet 9, an exhaust pipe 10, a first regenerated gas inlet 11, a first negative pressure suction port 12, a second regenerated gas inlet 13, a first negative pressure suction port 14, a natural gas inlet pipe 15, a baffle assembly 16, a humidity sensor 17, an exhaust valve 18, an annular gas distribution pipe 19 and a gas distribution port 20.
The tower body 1 is internally provided with a lower supporting screen plate 2 and an upper supporting screen plate 3, a molecular sieve filling layer 4 is arranged between the lower supporting screen plate 2 and the upper supporting screen plate 3, and molecular sieve particles in the molecular sieve filling layer 4 can dehydrate the entering natural gas, and the molecular sieve after adsorption saturation is regenerated subsequently.
The left and right sides slope of lower support otter board 2 upwards sets up, and lower support otter board 2 bottom intermediate position is equipped with album liquid cotton 5, and album liquid cotton 5 removes the liquid in the adsorption molecular sieve granule like this, and album liquid cotton 5 bottom is equipped with a plurality of extrusion piece 6, and extrusion piece 6 bottom is connected with stripper plate 7, and stripper plate 7 bottom is connected with extrusion cylinder 8, and extrusion cylinder 8 is fixed in tower body 1 bottom, and tower body 1 bottom left and right sides is equipped with leakage fluid dram 9, can drive stripper plate 7, extrusion piece 6 rise through extrusion cylinder 8, extrudes album liquid cotton 5, discharges its inside liquid.
In order to be more favorable for liquid discharge, a horizontal bottom plate is arranged in the middle of the bottom of the tower body 1, guide plates which are obliquely downward are arranged on the left side and the right side of the horizontal bottom plate, two liquid discharge ports 9 are positioned at the lower end of the guide plates, and an extrusion cylinder 8 is fixed outside the horizontal bottom plate.
The number of the extrusion blocks 6 may be set as required, and three blocks are used in this example.
The top of the tower body 1 is provided with an exhaust pipe 10, a first regenerated gas inlet 11 and a first negative pressure suction port 12 are arranged below the lower supporting screen plate 2 on the side wall of the tower body 1, a second regenerated gas inlet 13 and a second negative pressure suction port 14 are arranged above the upper supporting screen plate 3 on the side wall of the tower body 1, and a natural gas inlet pipe 15 is arranged below the lower supporting screen plate 2 on the side wall of the tower body 1.
In order to regenerate the molecular sieve particles, the pressure reduction is performed by reducing the pressure and heating, and the pressure reduction is performed by changing the saturated vapor pressure of water in the molecular sieve body phase and the saturated vapor pressure in the external gas phase, so that a mass transfer driving force is provided for separating water molecules from the molecular sieve particles, namely, the external gas phase pressure is lower than the internal pore pressure of the molecular sieve, so that the water molecules in the molecular sieve are outwards diffused to be dehydrated. And heating and vaporizing the water molecules adsorbed in the molecular sieve to increase the internal pressure of the molecular sieve, and diffusing the water molecules from the inner holes of the molecular sieve to the external gas phase to realize dehydration.
The utility model can utilize the first regenerated gas inlet 11 to enter heating gas, utilize the second negative pressure suction port 14 to decompress and suck, carry on the forward regeneration, can utilize the second regenerated gas inlet 13 to enter heating gas, utilize the first negative pressure suction port 12 to decompress and suck, carry on the reverse regeneration, have a strengthening effect, namely make the water molecule absorbed on the molecular sieve break away from the micro-pore of the molecular sieve from the multi-direction, raise the dehydration efficiency and dehydration thorough degree of the molecular sieve.
The exhaust pipe 10 comprises a vertical pipe and a horizontal pipe which are communicated, and a baffle assembly 16, a humidity sensor 17 and an exhaust valve 18 are sequentially arranged in the horizontal pipe along the gas flowing direction. The baffle assembly 16 includes a plurality of baffles staggered on the inner top and bottom walls of the horizontal tube. The baffle assembly 16 may block the exhaust gas from carrying along with the pulverized particles. The humidity sensor 17 can observe the humidity of the exhaust gas, and can grasp the timing of regeneration more accurately.
The natural gas inlet pipe 15 stretches into the tower body 1 and is connected with an annular gas distribution pipe 19, and a plurality of gas distribution ports 20 are circumferentially distributed on the annular gas distribution pipe 19. The cloth air port 20 is opened vertically upward or vertically downward. The annular gas distribution pipe 19 can be used for more uniformly distributing gas, and the gas distribution opening 20 is arranged downwards, so that liquid can be prevented from being conveyed to a pipeline.
While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the above embodiments, but is intended to cover various modifications, either made by the method concepts and technical solutions of the utility model, or applied directly to other applications without modification, within the scope of the utility model.
Claims (7)
1. The utility model provides a molecular sieve dehydration tower for natural gas dehydration, a serial communication port, including tower body (1), be equipped with under bracing otter board (2) and go up supporting otter board (3) in tower body (1), be equipped with molecular sieve filling layer (4) between under bracing otter board (2) and last supporting otter board (3), under bracing otter board (2) left and right sides slope upwards sets up, under bracing otter board (2) bottom intermediate position is equipped with album liquid cotton (5), album liquid cotton (5) bottom is equipped with a plurality of extrusion piece (6), extrusion piece (6) bottom is connected with extrusion board (7), extrusion board (7) bottom is connected with extrusion cylinder (8), extrusion cylinder (8) are fixed in tower body (1) bottom, both sides are equipped with leakage fluid dram (9) in tower body (1) bottom, tower body (1) top is equipped with blast pipe (10), be equipped with first regeneration gas import (11) below under supporting otter board (2) on the side wall of tower body (1), first negative pressure suction port (12), be equipped with second regeneration gas import (13) on the side wall of tower body (1) side wall in last supporting otter board (3) top, second regeneration gas import (14) side wall (15) are equipped with under intake pipe (1).
2. The molecular sieve dehydration tower for dehydration treatment of natural gas according to claim 1, wherein the exhaust pipe (10) comprises a vertical pipe and a horizontal pipe which are communicated, and a baffle assembly (16), a humidity sensor (17) and an exhaust valve (18) are sequentially arranged in the horizontal pipe along the gas flowing direction.
3. A molecular sieve dehydration column for the dehydration treatment of natural gas according to claim 2, wherein the baffle assembly (16) comprises a plurality of baffles, which are staggered on the inner top wall and the inner bottom wall of the horizontal pipe.
4. A molecular sieve dehydration tower for dehydration treatment of natural gas according to claim 3, characterized in that the natural gas inlet pipe (15) extends into the tower body (1) and is connected with an annular gas distribution pipe (19), and a plurality of gas distribution openings (20) are circumferentially distributed on the annular gas distribution pipe (19).
5. The molecular sieve dehydration column for dehydration treatment of natural gas according to claim 4, wherein the opening of the gas distribution opening (20) is vertically upward or vertically downward.
6. The molecular sieve dehydration tower for dehydration treatment of natural gas according to claim 5, wherein a horizontal bottom plate is arranged in the middle of the bottom of the tower body (1), guide plates which are inclined downwards are arranged on the left side and the right side of the horizontal bottom plate, two liquid draining ports (9) are positioned at the lower end of the guide plates, and an extrusion cylinder (8) is fixed outside the horizontal bottom plate.
7. The molecular sieve dehydration column for dehydration treatment of natural gas according to claim 6, wherein the number of extrusion blocks (6) is three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321156408.9U CN220194427U (en) | 2023-05-15 | 2023-05-15 | Molecular sieve dehydration tower for dehydration treatment of natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321156408.9U CN220194427U (en) | 2023-05-15 | 2023-05-15 | Molecular sieve dehydration tower for dehydration treatment of natural gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220194427U true CN220194427U (en) | 2023-12-19 |
Family
ID=89153085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321156408.9U Active CN220194427U (en) | 2023-05-15 | 2023-05-15 | Molecular sieve dehydration tower for dehydration treatment of natural gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220194427U (en) |
-
2023
- 2023-05-15 CN CN202321156408.9U patent/CN220194427U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |