CN215388710U - Wet desulphurization absorption tower - Google Patents
Wet desulphurization absorption tower Download PDFInfo
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- CN215388710U CN215388710U CN202121672375.4U CN202121672375U CN215388710U CN 215388710 U CN215388710 U CN 215388710U CN 202121672375 U CN202121672375 U CN 202121672375U CN 215388710 U CN215388710 U CN 215388710U
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Abstract
The utility model discloses a wet desulphurization absorption tower, which comprises an absorption tower body, a liquid level measurement structure and an inlet flue connected with the absorption tower body; the liquid level measuring structure comprises a communicating vessel and a plurality of communicating pipes, the communicating vessel is arranged on one side of the absorption tower body, the communicating vessel and the absorption tower body are communicated through the plurality of communicating pipes, and the plurality of communicating pipes are distributed at intervals along the height direction of the absorption tower body; the lower end of the communicating vessel is closed, and the upper end of the communicating vessel is communicated with the inlet flue; the communicating vessel adopts a transparent pipeline. The utility model can accurately measure the liquid level in the absorption tower and can observe the foaming condition in the absorption tower in time.
Description
Technical Field
The utility model belongs to the field of flue gas environment-friendly devices, and relates to a wet desulphurization absorption tower.
Background
Wet desulphurization accounts for more than 92% of the flue gas desulphurization process, and the wet desulphurization process is widely applied to industries such as electric power, steel and the like. The liquid level of the absorption tower is an important parameter for the safe and stable operation of the absorption tower, and the impurities (such as dust, soluble salt and soluble gas) in the flue gas, the impurities (organic matters and chloride ions) in the process water, and the impurities (acid insoluble substances and Mg) in the limestone are accompanied with the impurities (such as dust, soluble salt and soluble gas) in the flue gas2+) The continuous enrichment of desulfurization system is brought into to wait, simultaneously because the continuous disturbance of thick liquid pump and oxidizing wind in the absorption tower, the phenomenon of foaming can often appear in the absorption tower thick liquid, and when the foaming situation was serious, direct influence the accurate measurement of absorption tower thick liquid level, simultaneously because the absorption tower body is airtight container, can't in time discover the thick liquid foaming phenomenon, lead to appearing the overflow phenomenon aggravation, the rotten influence desulfurization efficiency of thick liquid and dehydration efficiency.
At present, no effective and intuitive liquid level monitoring method guides the safe operation of an absorption tower system.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model aims to provide a wet desulphurization absorption tower, which can accurately measure the liquid level in the absorption tower and can observe the foaming condition in the absorption tower in time.
The technical scheme adopted by the utility model is as follows:
a wet desulphurization absorption tower comprises an absorption tower body, a liquid level measurement structure and an inlet flue connected with the absorption tower body;
the liquid level measuring structure comprises a communicating vessel and a plurality of communicating pipes, the communicating vessel is arranged on one side of the absorption tower body, the communicating vessel and the absorption tower body are communicated through the plurality of communicating pipes, and the plurality of communicating pipes are distributed at intervals along the height direction of the absorption tower body;
the lower end of the communicating vessel is closed, and the upper end of the communicating vessel is communicated with the inlet flue;
the communicating vessel adopts a transparent pipeline.
Preferably, each communicating pipe is provided with a valve, the lower end of the communicating vessel is set as a discharge port, and the lower end of the communicating vessel is provided with the valve below the communicating pipe with the lowest position.
Preferably, the lower end of the communicating vessel extends to the absorption tower trench.
Preferably, the upper end of the communicating vessel is connected with the inlet flue through a right-angled bend, and an opening at one end of the right-angled bend connected with the inlet flue is arranged along the flowing direction of flue gas in the inlet flue.
Preferably, the corner part of the right-angle elbow adopts a circular arc pipe for transition.
Preferably, all the communicating pipes are transparent pipes.
Preferably, the communicating vessels are vertically arranged, and the intervals among the communicating pipes are the same.
Preferably, the wet desulphurization absorption tower further comprises a camera and a desulphurization DCS monitor, the camera is connected with the desulphurization DCS monitor, and the camera is arranged on one side of the communicating vessel and is positioned above the communicating tube at the uppermost end by a preset distance.
Preferably, the communicating pipe is hermetically connected with the absorption tower body through a flange and a sealing gasket.
The utility model has the following beneficial effects:
in the wet desulphurization absorption tower, the absorption tower body is a closed container, so the upper end of the communicating vessel is communicated with the inlet flue, and the communicating pipe is combined, so that the pressure in the communicating vessel and the pressure in the absorption tower body are balanced and in an isobaric state, and the liquid level in the communicating vessel is consistent with the liquid level in the absorption tower body, so that the liquid level of foam can be accurately observed and detected when the foam exists in the absorption tower body. A plurality of communicating pipes are distributed along the direction of height interval of absorption tower body, and the sampling point can consider different density regions like this, can effectively reflect the actual state of thick liquid in the absorption tower. The operating personnel can monitor the liquid level and the foam condition visually, and carry out liquid level adjustment and timely addition of defoaming agents.
Further, every is equipped with the valve on communicating pipe, the lower extreme of linker is established to the discharge port, the lower extreme of linker is equipped with the valve in the below of the communicating pipe that the position is minimum, this kind of structural design can realize washing the linker inner wall, it is concrete, after the linker internal surface stains, close every valve on communicating pipe, open the valve of linker lower extreme, inside flue gas in the entry flue got into the linker, the lower extreme discharge that the linker can be followed fast to the pressure of the thick liquid in the linker through the flue gas, the flow in-process, the thick liquid can play the effect of erodeing to the linker inner wall. In addition, the lower extreme of linker is established to the discharge port and is equipped with the valve, consequently can discharge the thick liquid in the linker in good time, prevents that the thick liquid from deposiing, scale deposit in the linker from influencing the observation effect.
Further, be connected through elbow bend between the upper end of linker and the entry flue, elbow bend and the opening of the one end of being connected of entry flue set up along the interior flue gas flow direction of entry flue, and the liquid level of liquid level in can avoiding the flue gas flow in the entry flue to the linker takes place to invade in this elbow bend's the setting, guarantees that the liquid level in the linker can be real reaction goes out this internal liquid level of absorption tower.
Furthermore, the corner part of the right-angle elbow adopts the arc pipe for transition, so that the flow velocity of flue gas can be ensured when the communicating vessel is flushed, the flow velocity of slurry flowing out of the communicating vessel is improved as much as possible, and the flushing effect is improved.
Drawings
FIG. 1 is a schematic structural diagram of a wet desulfurization absorption tower of the present invention.
Wherein, 1 is the absorption tower body, 2 is the linker, 3 is communicating pipe, 4 is the entry flue, 5 is the drainage port, 6 is elbow bend, 7 is the absorption tower trench, 8 is the camera, 9 is desulfurization DCS monitor.
Detailed Description
The utility model is described in further detail below with reference to the following figures and examples:
referring to fig. 1, the wet desulfurization absorption tower of the present invention includes an absorption tower body 1, a liquid level measurement structure, and an inlet flue 4 connected to the absorption tower body 1; the liquid level measuring structure comprises a communicating vessel 2 and a plurality of communicating pipes 3, wherein the communicating vessel 2 is arranged on one side of the absorption tower body 1, the communicating vessel 2 is communicated with the absorption tower body 1 through the plurality of communicating pipes 3, and the plurality of communicating pipes 3 are distributed at intervals along the height direction of the absorption tower body 1; the lower end of the communicating vessel 2 is closed, and the upper end is communicated with the inlet flue 4; the communicating vessel 2 adopts a transparent pipeline. The wet desulphurization absorption tower device utilizes the principle of the communicating vessel to lead the slurry to different height positions of the slurry pool of the absorption tower, because the density distribution of the slurry in the absorption tower is not uniform, the density of the bottom is generally higher than that of the slurry at the upper part, and simultaneously, the foam of the slurry at the upper part is more concentrated due to the disturbance of the oxidizing air and the slurry pump, the slurry at different liquid levels can be effectively led in by utilizing the communicating vessel device, and the actual state of the slurry in the absorption tower can be effectively reflected.
As a preferred embodiment of the present invention, each of communication pipes 3 is provided with a valve, the lower end of communicating vessel 2 is set as a discharge port, and the lower end of communicating vessel 2 is provided with a valve below communicating pipe 3 at the lowest position. In the normal course of operation of wet flue gas desulfurization absorption tower, the valve on the linker 2 is closed, and the valve on communicating pipe 3 is all opened, when washing away 2 inner walls of linker, the valve on linker 2 is opened, and the valve on communicating pipe 3 is closed.
As a preferred embodiment of the present invention, the lower end of the communicating vessel 2 extends to the absorption tower trench 7, enabling easy discharge of the slurry in the communicating vessel 2.
As a preferred embodiment of the utility model, the upper end of the communicating vessel 2 is connected with the inlet flue 4 through a right-angled bend 6, and the opening of the end of the right-angled bend 6 connected with the inlet flue 4 is arranged along the flowing direction of the flue gas in the inlet flue 4.
In a preferred embodiment of the present invention, the corner portions of the elbow bend 6 are transferred by circular arc pipes.
As the preferred embodiment of the utility model, all the communicating pipes 3 are transparent pipes, so that whether the communicating pipes 3 are blocked or air-blocked or not can be observed conveniently, the communicating vessels 2 are arranged vertically, the intervals among the communicating pipes 3 are the same, and the communicating pipes 3 are connected with the absorption tower body 1 in a sealing way through flanges and sealing gaskets.
As a preferred embodiment of the present invention, the wet desulphurization absorption tower further comprises a camera 8 and a desulphurization DCS monitor, the camera 8 is connected with the desulphurization DCS monitor, and the camera 8 is disposed on one side of the communicating vessel 2 and is located a predetermined distance above the uppermost communicating tube 3. The camera is used for recording the slurry liquid level and the foam layer state in the communicating vessel in real time and sending back to the DCS monitor in a picture mode. Accurate and visual data support can be provided for the timeliness of adjustment of the liquid level of the slurry in the absorption tower and addition of the defoaming agent by operators.
As a preferred embodiment of the present invention, the communicating vessels are made of organic glass visual tubes, so that the slurry can be visually observed.
The working method of the wet desulphurization absorption tower comprises the following steps:
during the operation of the absorption tower body 1, the slurry in the absorption tower body 1 enters the communicating vessel 2 through the communicating pipe 3, and the liquid level and the bubble condition in the absorption tower body 1 are observed from the communicating vessel 2.
In the wet desulfurization absorption tower, when a valve is provided on each communicating pipe 3, the lower end of the communicating vessel 2 is set as a discharge port, and the lower end of the communicating vessel 2 is provided with a valve below the lowest communicating pipe 3:
after the inner surface of the communicating vessel 2 is contaminated, the valve on each communicating tube 3 is closed, the valve at the lower end of the communicating vessel 2 is opened, the flue gas in the inlet flue 4 enters the inside of the communicating vessel 2 and enables the slurry in the communicating vessel 2 to be discharged from the lower end of the communicating vessel 2, and the discharge of the slurry in the communicating vessel 2 and the flushing of the inner wall of the communicating vessel 2 are realized.
Examples
As shown in fig. 1, the wet desulphurization absorption tower of the utility model comprises an absorption tower body 1, an inlet flue 4, a discharge trench 7 and a liquid level monitoring system; the liquid level monitoring system comprises a communicating vessel 2, a communicating tube 3, a camera 8 and a desulfurization DCS monitor 9. Communicating vessel 2 is linked together 1 through being located not co-altitude communicating pipe 3 and absorption tower, and the lower extreme of communicating vessel 2 sets up and dredges and put mouthful 5, dredges and puts mouthful 5 and be linked together with absorption tower trench 7, and 2 tops of communicating vessel set up elbow bend 6 and are connected with entry flue 4, and communicating pipe top elbow 6 stretches into inside the absorption tower entry flue 4, and the elbow direction is arranged for the syntropy with the flue gas direction. The lower end of the communicating vessel 2 and each communicating pipe 3 are provided with valves. The communicating pipes 3 are arranged below the liquid level of the pulp tank of the absorption tower body 1 and are uniformly distributed. The camera 8 sets up in the position such as height with the normal liquid level of absorption tower body 1, and camera 8 is connected with desulfurization DCS watch-dog 9, sends back desulfurization DCS watch-dog 9 with the picture pattern through camera 8 to thick liquid level and foam layer state in the linker.
The specific implementation process of the utility model is as follows:
the upper part of the liquid level of the desulfurization slurry in the absorption tower 1 has low density, a large amount of foam is enriched, and the lower part has high density. Based on communicating vessel principle foam and thick liquid get into communicating vessel 2 through evenly arranging communicating pipe 3 below the thick liquid level in, flange joint is adopted with communicating vessel 2 to communicating pipe 3, and the material of communicating vessel 2 is organic visual glass. The upper end of the communicating vessel 2 is connected with an inlet flue 4, and adopts a right-angle elbow 6, the direction of which is consistent with the direction of flue gas, and the lower end is provided with an underflow discharge port 5 which is connected with an absorption tower trench 7. The flange of the daily monitoring liquid level communicating vessel is opened, the underflow discharge port is closed, the foam and the slurry liquid level in the communicating vessel 3 are recorded in real time through the external camera 8 and are transmitted to a DCS interface of the desulfurization system in a picture mode, and the monitoring of the desulfurization slurry liquid level and the foam is realized.
The device can also realize the flushing function. When the communicating vessel 2 is seriously polluted, the flange between the communicating tube 3 and the communicating vessel 2 is closed, the underflow drain outlet 5 is opened, and slurry in the communicating vessel 2 can be discharged into the discharge trench 7 under the action of the pressure of smoke gas in the inlet flue 4, so that the emptying and flushing of the communicating vessel 2 are realized.
Claims (9)
1. The wet desulphurization absorption tower is characterized by comprising an absorption tower body (1), a liquid level measurement structure and an inlet flue (4) connected with the absorption tower body (1);
the liquid level measuring structure comprises a communicating vessel (2) and a plurality of communicating pipes (3), the communicating vessel (2) is arranged on one side of the absorption tower body (1), the communicating vessel (2) is communicated with the absorption tower body (1) through the plurality of communicating pipes (3), and the plurality of communicating pipes (3) are distributed at intervals along the height direction of the absorption tower body (1);
the lower end of the communicating vessel (2) is closed, and the upper end is communicated with the inlet flue (4);
the communicating vessel (2) adopts a transparent pipeline.
2. The absorption tower according to claim 1, wherein each communicating pipe (3) is provided with a valve, the lower end of the communicating pipe (2) is provided with a discharge port, and the lower end of the communicating pipe (2) is provided with a valve below the lowest communicating pipe (3).
3. The wet desulfurization absorption tower according to claim 2, wherein the lower end of the communicating vessel (2) extends to the absorption tower trench (7).
4. The absorption tower according to claim 1, wherein the upper end of the communicating vessel (2) is connected with the inlet flue (4) through a right-angled bend (6), and the opening of the end of the right-angled bend (6) connected with the inlet flue (4) is arranged along the flow direction of the flue gas in the inlet flue (4).
5. The absorption tower according to claim 1, wherein the corner portion of the elbow (6) is formed by circular arc tube transition.
6. The absorption tower for wet desulphurization according to claim 1, wherein all the communicating tubes (3) are transparent tubes.
7. The absorption tower according to claim 1, wherein the communicating tubes (2) are vertically arranged, and the intervals between the communicating tubes (3) are the same.
8. The absorption tower for wet desulphurization according to claim 1, further comprising a camera (8) and a desulphurization DCS monitor, wherein the camera (8) is connected with the desulphurization DCS monitor, and the camera (8) is arranged on one side of the communicating vessel (2) and is positioned above the uppermost communicating tube (3) by a preset distance.
9. The absorption tower for wet desulphurization according to claim 1, wherein the communicating pipe (3) is hermetically connected with the absorption tower body (1) through a flange and a gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121672375.4U CN215388710U (en) | 2021-07-21 | 2021-07-21 | Wet desulphurization absorption tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121672375.4U CN215388710U (en) | 2021-07-21 | 2021-07-21 | Wet desulphurization absorption tower |
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| Publication Number | Publication Date |
|---|---|
| CN215388710U true CN215388710U (en) | 2022-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121672375.4U Active CN215388710U (en) | 2021-07-21 | 2021-07-21 | Wet desulphurization absorption tower |
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| Country | Link |
|---|---|
| CN (1) | CN215388710U (en) |
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2021
- 2021-07-21 CN CN202121672375.4U patent/CN215388710U/en active Active
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