CN203635035U - Pilot test apparatus in serial-parallel connection switchable gas-liquid mass transfer tower - Google Patents
Pilot test apparatus in serial-parallel connection switchable gas-liquid mass transfer tower Download PDFInfo
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- CN203635035U CN203635035U CN201320699963.6U CN201320699963U CN203635035U CN 203635035 U CN203635035 U CN 203635035U CN 201320699963 U CN201320699963 U CN 201320699963U CN 203635035 U CN203635035 U CN 203635035U
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Abstract
The utility model discloses a pilot test apparatus in a serial-parallel connection switchable gas-liquid mass transfer tower. The pilot test apparatus comprises an absorption tower I and an absorption tower II, wherein a gas inlet of the absorption tower I is connected with a feed gas inlet pipeline, the feed gas inlet pipeline is also communicated with a pipeline I, and the other end of the pipeline I is communicated with a gas inlet of the absorption tower II; a gas outlet at the top of the absorption tower I is communicated with a pipeline II, and the other end of the pipeline II is communicated with the pipeline I; the pipeline II is also communicated with a purified gas outlet pipeline; an absorbent outlet at the bottom of the absorption tower I is communicated with a rich liquid outlet pipeline; an absorbent outlet at the bottom of the absorption tower II is respectively communicated with a pipeline III and a pipeline IV; two ends of a pipeline V are respectively communicated with absorbent inlets at the upper parts of the absorption tower I and the absorption tower II. The serial-parallel connection relationship between the absorption towers can be adjusted through adjusting the opening and closing of a valve in the pilot test research in different gas purification processes, so that the research on problems such as gas purification effect, process parameter determination and the like in different tower connection ways is realized.
Description
Technical field
The utility model relates to a kind of pilot test device of chemical industry mass-transfer progress, is specifically related to the switchable gas-liquid mass transfer tower of a kind of connection in series-parallel pilot test device.
Background technology
Tower is consersion unit common in chemical engineering industry, is usually used in the processes such as the separation, rectifying, absorption of material.The pilot-plant of tower can be simulated corresponding chemical process, by experiment for actual production provides reference.71 of the existing tower Patents of China, most patent is directed to the improvement and bring new ideas of tower structure or tower internals, is applied to production more.Wherein be specifically designed to one of the tower patent of experiment: utility model name is called " general tower teaching aid ", and application number is 201210334881.1.This patent is for education experiment.The patent that technological process relates to multiple towers is a lot, but mostly adopts a kind of connected mode.According to the difference of demand of industrial production, required tower connection in series-parallel connected mode is also different.
Very large when needing to process gas flow in industrial production, and acid gas is removed in the situation that depth requirements is not high, for cost-saving, often adopt mode in parallel.When needs, to process gas flow less, and acid gas is removed in the situation that depth requirements is higher, often adopts the mode of series connection.In two kinds of situations, absorbent and gas to be clean are all reverse flow mass transfers, can reduce energy consumption, improve degree of purification.The switchable chemical tower pilot-plant of this series, parallel can carry out the experimental study under different process situation.
Utility model content
The purpose of this utility model is to provide the switchable gas-liquid mass transfer tower of a kind of connection in series-parallel pilot test device, the utility model can carry out the Industrial Simulation experiment under the different gas-liquid connected modes of multiple towers, realizes the investigation to various working on separate unit experimental provision.
The switchable gas-liquid mass transfer tower of a kind of connection in series-parallel provided by the utility model pilot test device, comprises absorption tower I and absorption tower II;
The gas access of described absorption tower I is connected with unstripped gas inlet duct, and described unstripped gas inlet duct is also connected with pipeline I, and the other end of described pipeline I is connected with the gas access of described absorption tower II; Described pipeline I is provided with valve;
The gas vent at I top, described absorption tower is connected with pipeline II, and the other end of described pipeline II is connected with described pipeline I; Described pipeline II is also connected with clean gas outlet pipeline; On described pipeline II and described clean gas outlet pipeline, be equipped with valve;
The absorbent outlet of I bottom, described absorption tower is connected with rich solution outlet conduit;
The gas vent at II top, described absorption tower is connected with described clean gas outlet pipeline;
The absorbent outlet of II bottom, described absorption tower is connected with pipeline III and pipeline IV respectively, and described pipeline III is connected with described rich solution outlet conduit, and described pipeline IV is connected with pipeline V; The two ends of described pipeline V are connected with the absorbent entrance on the top of described absorption tower I and described absorption tower II respectively;
In described pipeline III, described pipeline IV and described pipeline V, be equipped with valve.
In above-mentioned gas-liquid mass transfer tower pilot test device, between described absorption tower I and the top and bottom of described absorption tower II, be equipped with differential pressure measurement indicating device, for monitoring the pressure differential in described absorption tower I and described absorption tower II.
In above-mentioned gas-liquid mass transfer tower pilot test device, the bottom of described absorption tower I and described absorption tower II is equipped with liquid level controller table, for monitoring the liquid level in described absorption tower I and described absorption tower II.
In above-mentioned gas-liquid mass transfer tower pilot test device, on described unstripped gas inlet duct and described clean gas outlet pipeline, be equipped with flow detector, for the flow velocity of gas-monitoring.
In above-mentioned gas-liquid mass transfer tower pilot test device, described pipeline IV is provided with measuring pump, for monitoring the absorbent entering in described absorption tower I and described absorption tower II.
The utility model is easy to use, and there is applicability widely, during in different process, gas purifying technique pilot experiment is studied, can the keying by control valve regulate the connection in series-parallel relation on absorption tower, thereby carry out gas purifying effect different tower connected mode (single tower, double-column in series, double tower parallel connection) under and the research of the problem such as process operation parameter is definite.The utility model can carry out simulated experiment for the different makings in Practical Project, finally determines best technological process, for the design in Practical Project provides reference and foundation.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model gas-liquid mass transfer tower pilot test device.
In figure, each mark is as follows:
1 absorption tower I, 2 absorption tower II, 3 measuring pumps, 4～10 ball valves, 11,12 autocontrol valves, 13 unstripped gas inlet ducts, 14 pipeline I, 15 pipeline II, 16 clean gas outlet pipelines, 17 flow detectors, 18 rich solution outlet conduits, 19 pipeline III, 20 pipeline IV, 21 pipeline V, 22 differential pressure measurement indicating devices, 23 liquid level controller tables.
Detailed description of the invention
The experimental technique using in following embodiment if no special instructions, is conventional method.
Material, reagent etc. used in following embodiment, if no special instructions, all can obtain from commercial channels.
As shown in Figure 1, the switchable gas-liquid mass transfer tower of connection in series-parallel provided by the utility model pilot test device comprises absorption tower I 1 and absorption tower II 2; The gas access of this absorption tower I 1 is connected with unstripped gas inlet duct 13, and this unstripped gas inlet duct 13 is also connected with pipeline I 14, and the other end of pipeline I 14 is connected with the gas access of absorption tower II 2, is provided with valve 10 in pipeline I 14.The gas vent at absorption tower I 1 top is connected with pipeline II 15, and the other end of this pipeline II 15 is connected with pipeline I 14, is provided with valve 9 in pipeline II 15.Wherein pipeline II 15 is also connected with clean gas outlet pipeline 16, and this clean gas outlet pipeline 16 is provided with valve 8.On unstripped gas inlet duct 13 and clean gas outlet pipeline 16, be equipped with flow detector 17, for the flow of gas-monitoring.The absorbent outlet of absorption tower I 1 bottom is connected with rich solution outlet conduit 18, is provided with valve 11 on rich solution outlet conduit 18.The gas vent at absorption tower II 2 tops is connected with 1 clean gas outlet pipeline 16.The absorbent outlet of absorption tower II 2 bottoms is connected with pipeline III 19 and pipeline IV 20 respectively, pipeline III 19 is provided with valve 6 and autocontrol valve 12, pipeline IV 20 is provided with valve 4 and 5 and measuring pump 3, for the absorbent that flows into absorption tower I 1 and absorption tower II 2 is measured.Wherein, pipeline III 19 is connected with rich solution outlet conduit 18, and pipeline IV 20 is connected with pipeline V 21, is provided with valve 7 in pipeline V 21, and the two ends of pipeline V 21 are connected with the absorbent entrance on the top of absorption tower I 1 and absorption tower II 2 respectively.
In the switchable gas-liquid mass transfer tower of connection in series-parallel of the present utility model pilot test device, between absorption tower I 1 and the top and bottom of absorption tower II 2, be equipped with differential pressure measurement indicating device 22, for monitoring the pressure differential in absorption tower I 1 and absorption tower II 2.
In the switchable gas-liquid mass transfer tower of connection in series-parallel of the present utility model pilot test device, be equipped with liquid level controller table 23 in absorption tower I 1 and the bottom of absorption tower II 2, and be connected with 12 with autocontrol valve 11 respectively, with the open/close states of autocontrol valve 11 and 12.
At present, in actual industrial production, in order to reduce greenhouse effects, prevent equipment corrosion and ensure production safety etc., having many fields need to carry out gas cleaning processing.Most of chemical process all will be carried out midget plant experiment before actual putting into production.
Below in conjunction with gas purification processing procedure, use procedure of the present utility model is described:
One, tower is in parallel uses
In the time using the switchable gas-liquid mass transfer tower of this connection in series-parallel to carry out the experimental study of GAS ABSORPTION operating mode in situation in parallel, specific operation process is as follows:
(1) gas phase connects: make valve 10 and valve 8 in opening, make valve 9 in closed condition.Now, the acid gas after supercharging (temperature is about 30～50 DEG C, pressure and is about 3MPa～5MPa) is divided into two strands of gases and enters respectively absorption tower I 1 and the bottom of absorption tower II 2 and carry out acid gas absorption process with the absorbent (being generally hydramine) of spray from top to bottom.The operating temperature on absorption tower is about 50 DEG C, and pressure is about 5MPa.
(2) liquid phase connects: in the time that rich solution reaches setting liquid level (being controlled by liquid level controller table 23), autocontrol valve 11 and 12 is opened automatically, carries out the discharge of rich solution.While adopting parallel way, valve 6 and 7 is in opening, and valve 4 and 5 is in closed condition.Absorbent after regenerator is regenerated, is divided into two stocks does not enter absorption tower I 1 and absorption tower II 2 tops by regenerator underflow after being gone out, carry out top-down spray.Absorb absorbent after acid gas after discharge bottom, absorption tower, after gathering, enter regenerator and carry out the circular regeneration process of absorbent.
By said process, can carry out absorbing in chemical process under tower situation in parallel acid gas removal effect and technological parameter and determine that the experimental simulation waiting studies.
Two, tower series connection is used
In the time using the switchable gas-liquid mass transfer tower of this connection in series-parallel to carry out the experimental study of GAS ABSORPTION operating mode in series connection situation, specific operation process is as follows:
(1) gas phase connects: make valve 10 and valve 8 in closed condition, make valve 9 in opening.Now, the acid gas after supercharging (temperature is about 30～50 DEG C, pressure and is about 3MPa～5MPa) first all enters absorption tower I 1 bottom and carries out elementary gas purification process with the semi lean solution absorbent (being generally hydramine) of spray from top to bottom.All gas self-absorption tower I 1 top after primary purification enters the bottom of absorption tower II 2 and in absorption tower II 2, carries out further acid gas subtractive process from the absorbent after regenerator regeneration.In whole gas purification process, absorbent and gas to be clean are reverse flow mass transfers.
(2) liquid phase connects: valve 4,5 and 7 is all in opening, and valve 6 is in closed condition.What now, discharged II 2 bottoms in absorption tower carry out absorbent after elementary gas purification is entered and in absorption tower I 1, is carried out elementary acid gas and remove by measuring pump 3.Interlock control system (being that automatic liquid-level controller table 23 is controlled) is detected by liquid level in I 1 bottom in absorption tower, and in the time that rich solution reaches setting liquid level, autocontrol valve 11 is opened automatically, carries out the discharge of rich solution.The rich solution of discharge enters regenerator and carries out absorbent circular regeneration process.
By said process, can carry out absorbing in chemical process under tower series connection situation acid gas removal effect and technological parameter and determine that the experimental simulation waiting studies.
Claims (5)
1. the switchable gas-liquid mass transfer tower of a connection in series-parallel pilot test device, is characterized in that:
Described pilot test device comprises absorption tower I and absorption tower II;
The gas access of described absorption tower I is connected with unstripped gas inlet duct, and described unstripped gas inlet duct is also connected with pipeline I, and the other end of described pipeline I is connected with the gas access of described absorption tower II; Described pipeline I is provided with valve;
The gas vent at I top, described absorption tower is connected with pipeline II, and the other end of described pipeline II is connected with described pipeline I; Described pipeline II is also connected with clean gas outlet pipeline; On described pipeline II and described clean gas outlet pipeline, be equipped with valve;
The absorbent outlet of I bottom, described absorption tower is connected with rich solution outlet conduit;
The gas vent at II top, described absorption tower is connected with described clean gas outlet pipeline;
The absorbent outlet of II bottom, described absorption tower is connected with pipeline III and pipeline IV respectively, and described pipeline III is connected with described rich solution outlet conduit, and described pipeline IV is connected with pipeline V; The two ends of described pipeline V are connected with the absorbent entrance on the top of described absorption tower I and described absorption tower II respectively;
In described pipeline III, described pipeline IV and described pipeline V, be equipped with valve.
2. pilot test device according to claim 1, is characterized in that: between described absorption tower I and the top and bottom of described absorption tower II, be equipped with differential pressure measurement indicating device.
3. pilot test device according to claim 1 and 2, is characterized in that: the bottom of described absorption tower I and described absorption tower II is equipped with liquid level controller table.
4. pilot test device according to claim 1 and 2, is characterized in that: on described unstripped gas inlet duct and described clean gas outlet pipeline, be equipped with flow detector.
5. pilot test device according to claim 1 and 2, is characterized in that: described pipeline IV is provided with measuring pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320699963.6U CN203635035U (en) | 2013-11-07 | 2013-11-07 | Pilot test apparatus in serial-parallel connection switchable gas-liquid mass transfer tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320699963.6U CN203635035U (en) | 2013-11-07 | 2013-11-07 | Pilot test apparatus in serial-parallel connection switchable gas-liquid mass transfer tower |
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| Publication Number | Publication Date |
|---|---|
| CN203635035U true CN203635035U (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320699963.6U Withdrawn - After Issue CN203635035U (en) | 2013-11-07 | 2013-11-07 | Pilot test apparatus in serial-parallel connection switchable gas-liquid mass transfer tower |
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| CN (1) | CN203635035U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103537173A (en) * | 2013-11-07 | 2014-01-29 | 中国海洋石油总公司 | Pilot-scale experiment device of gas-liquid mass transfer tower with switchable series-parallel connection |
-
2013
- 2013-11-07 CN CN201320699963.6U patent/CN203635035U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103537173A (en) * | 2013-11-07 | 2014-01-29 | 中国海洋石油总公司 | Pilot-scale experiment device of gas-liquid mass transfer tower with switchable series-parallel connection |
| CN103537173B (en) * | 2013-11-07 | 2015-10-28 | 中国海洋石油总公司 | Connection in series-parallel switchable gas-liquid mass transfer tower pilot test device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140611 Effective date of abandoning: 20151028 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |