CN215639646U - Liquid level measuring device for three-circular-seam washing tower - Google Patents
Liquid level measuring device for three-circular-seam washing tower Download PDFInfo
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- CN215639646U CN215639646U CN202121495510.2U CN202121495510U CN215639646U CN 215639646 U CN215639646 U CN 215639646U CN 202121495510 U CN202121495510 U CN 202121495510U CN 215639646 U CN215639646 U CN 215639646U
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Abstract
The utility model relates to a liquid level measuring device of a three-circular-seam washing tower, belonging to the technical field of blast furnace gas dust removal in the metallurgical industry. The technical scheme is as follows: comprises an upper liquid level measuring unit of a washing tower and a lower liquid level measuring unit of the washing tower; an upper liquid level tank (1) in an upper liquid level measuring unit of a washing tower is connected with the upper bottom of the washing tower, steel pipes A (6) are welded at the upper end and the lower end of the tank body of the upper liquid level tank (1), the other ends of the two steel pipes A (6) are connected with the two ends of a PVC steel wire hose A (5) respectively, a ball valve A (4) is installed on each steel pipe A (6), and a liquid level scale A (2) is adhered to the tank body of the upper liquid level tank (1); the dehydrator (11) in the lower liquid level measuring unit of the washing tower is connected with the bottom of the lower pot of the washing tower, and the utility model has the advantages that: the upper and lower liquid levels of the three-circular-seam washing tower can be timely and effectively measured, and the upper and lower liquid levels of the washing tower are ensured to be consistent with the display on an instrument control computer.
Description
Technical Field
The utility model relates to a liquid level measuring device of a three-circular-seam washing tower, belonging to the technical field of blast furnace gas dust removal in the metallurgical industry.
Background
Blast furnace raw gas produced by a blast furnace in iron and steel enterprises is conveyed to a user for combustion and utilization after dust removal and purification, and the three-circular-seam washing tower is blast furnace gas dust removal equipment produced by German Baoerwort (PW) company, has mature technology, has the advantages of high dust removal efficiency, low failure rate, long service cycle, convenience in operation and adjustment, low washing water consumption and the like, and is popular with various domestic iron and steel enterprises.
The upper part of the washing tower is a prewashing section which is provided with 9 spray heads, the middle part is three variable Venturi cores (circular seams) which are respectively provided with a spray head, and the bottom part is a hydraulic cylinder and a circular seam connecting rod driven by hydraulic drive. The coal gas enters from the top of the washing tower, and the outlet is arranged at the lower part of the upper drainage layer. The upper layer and the lower layer are arranged for water drainage, the washing tower blocks the coal gas in the washing tower by means of the upper layer liquid level, the upper layer of laminated water is drained into the overhead flow groove and flows to the washing water station for treatment and then is recycled, and the lower layer of accumulated water is conveyed to the upper layer of prewashing section spray head through the circulating pump station, so that the washing water is saved. The upper and lower layer liquid level drainage pipe of washing tower comprises main road and bypass, and manual butterfly valve about main road and bypass all are provided with, governing valve and the stop valve that surges, and daily main road operation bypass is reserve, and the main road stop valve is normally opened, relies on the main road governing valve to control the liquid level, and bypass governing valve and stop valve are normally closed, regularly switch, reduce the gas ash jam valve in the washing water.
In daily production, the situation that the upper and lower layer liquid level errors are large often occurs, the real data deviation between computer display (namely instrument control measurement) and the upper and lower layer liquid levels of the washing tower is large, the daily instrument control measurement depends on a pressure type liquid level meter arranged in the upper and lower layer drainage pipes to measure, the upper and lower layer liquid levels of the washing tower depend on the water pressure in the pipeline to measure, and the measurement result is remotely transmitted to a control room to be monitored. In daily production, the pressure type liquid level meter is influenced by the following factors, so that the measured liquid level is inaccurate:
(1) the washing water contains a large amount of gas ash in the dust removal process, and once the gas ash enters a transmitter of the liquid level meter, the transmitter is blocked, and the situation that the liquid level is inaccurate occurs;
(2) the water discharging pipe is provided with a part of coal gas in the water discharging process, and when the coal gas enters a transmitter of the pressure type liquid level meter, the situation that the measurement of the liquid level meter is inaccurate occurs;
(3) when the blast furnace is stopped and repaired, the liquid levels of the upper layer and the lower layer need to be emptied, air enters a transmitter connecting pipe and cannot be discharged during operation, and the condition of affecting liquid level measurement occurs;
(4) under the influence of fluctuation of the top pressure of the blast furnace, when the fluctuation of the liquid levels of the upper layer and the lower layer is large, the liquid level in a sampling pipeline of the pressure type liquid level meter is unstable, so that the error of the actual measurement result is large;
(5) the transmitter of the pressure type liquid level meter has errors, so that the measurement is inconsistent with the reality.
When the actual liquid level of the washing tower is greatly different from the data measured by the instrument control, the real liquid level in the washing tower cannot be reflected, the computer can automatically control the upper layer drain valve and the lower layer drain valve of the washing tower to be switched and adjusted according to the measured wrong liquid level, and the uncontrollable condition of the upper layer liquid level and the lower layer liquid level is caused. If the real liquid level is too high, a large amount of washing water on the upper layer can flow to the lower layer through the coal gas diversion pipe, so that the liquid level of the lower layer is high, and a large amount of washing water can be taken away by coal gas to enter the subsequent procedures, thereby influencing TRT power generation and the operation of a coal gas pipe network. If the real liquid level is too low, the upper liquid level height can not block the pressurized gas, so that a large amount of gas flows to an overhead runner along with the drainage, and a large amount of gas leaks and diffuses, thereby causing the accidents of peripheral posts and gas poisoning of personnel. After the above circumstances take place, need in time handle and check-up the upper and lower floor liquid level, ensure that the instrument control is measured and is guaranteed unanimously with actual liquid level, guarantee that the liquid level is in normal operating condition.
Therefore, it is necessary to develop a liquid level measuring device for a three-circular seam washing tower, so as to ensure that the upper and lower liquid levels of the three-circular seam washing tower are real and the upper and lower liquid levels are controlled to stably run.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a liquid level measuring device for a three-circular-seam washing tower, which can effectively measure the upper and lower liquid levels of the three-circular-seam washing tower in time, ensure that the upper and lower liquid levels of the washing tower are consistent with the display on an instrument control computer, and solve the problems in the background art.
The technical scheme of the utility model is as follows:
a liquid level measuring device for a three-circular seam washing tower comprises an upper liquid level measuring unit of the washing tower and a lower liquid level measuring unit of the washing tower;
the upper liquid level measuring unit of the washing tower comprises an upper liquid level tank, a liquid level scale A, a ball valve A, PVC steel wire hose A and steel pipes A, wherein the upper liquid level tank is connected with the bottom of an upper pot of the washing tower;
the lower-layer liquid level measuring unit of the washing tower comprises a dehydrator, a liquid level scale B, a ball valve B, PVC steel wire hose B and steel pipes B, wherein the dehydrator is connected with the bottom of a lower-layer boiler of the washing tower, the steel pipes B are welded at the upper end and the lower end of the dehydrator respectively, one ends of the two steel pipes B are communicated with the interior of the dehydrator respectively, the other ends of the two steel pipes B are connected with the two ends of the PVC steel wire hose B respectively, the ball valve B is mounted on each steel pipe B, and the liquid level scale B is pasted on the dehydrator.
The other ends of two steel pipes A in the upper liquid level measuring unit of the washing tower are respectively connected with the two ends of a PVC steel wire hose A through a hose clamp A.
And the other ends of the two steel pipes B in the lower-layer liquid level measuring unit of the washing tower are respectively connected with the two ends of the PVC steel wire hose B through the hose clamp B.
By adopting the utility model, the liquid level inside the PVC steel wire hose connected with the upper layer liquid level tank and the dehydrator is observed, the height of the observed liquid level is compared with the liquid level with the same height of the liquid level scale, and the liquid level with the same height in the liquid level scale and the PVC steel wire hose is the real liquid level of the upper layer and the lower layer of the current washing tower, thereby ensuring that the liquid levels of the upper layer and the lower layer of the washing tower are basically consistent with the display on an instrument control computer.
The utility model has the beneficial effects that: the pressure type liquid level meter has the advantages of being simple in structure, convenient to use and accurate in measurement, being capable of directly observing the liquid level heights of the upper layer and the lower layer of the three-circular-seam washing tower on site, effectively monitoring the real heights of the liquid levels of the upper layer and the lower layer of the washing tower in time, carrying out contrastive analysis on the liquid level heights monitored on site and the liquid level heights obtained by instrument control, being capable of judging whether error occurs in the instrument control measurement, being convenient for maintaining and checking the pressure type liquid level meters of the upper layer and the lower layer of the liquid levels in time, and ensuring that the measurement result transmitted to a control room is real.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is an enlarged view of FIG. 1 at B;
in the figure: the device comprises an upper layer liquid level tank 1, a liquid level scale A2, a hose clamp A3, a ball valve A4, a PVC steel wire hose A5, a steel pipe A6, a washing tower 10, a dehydrator 11, a liquid level scale B12, a hose clamp B13, a ball valve B14, a PVC steel wire hose B15, a steel pipe B16, water supply G, an elevated liquid tank P, blast furnace gas F and a TRT power generation or main pipe network T.
Detailed Description
The utility model is further illustrated by way of example in the following with reference to the accompanying drawings.
Referring to the attached figure 1, the liquid level measuring device for the three-circular seam washing tower comprises a washing tower upper layer liquid level measuring unit and a washing tower lower layer liquid level measuring unit;
the upper liquid level measuring unit of the washing tower comprises an upper liquid level tank 1, a liquid level scale A2, a ball valve A4, a PVC steel wire hose A5 and a steel pipe A6, wherein the upper liquid level tank 1 is connected with the bottom of an upper pot of the washing tower, the upper end and the lower end of the upper liquid level tank 1 are respectively welded with the steel pipe A6, one ends of two steel pipes 6 are respectively communicated with the inside of the upper liquid level tank 1, the other ends of the two steel pipes A6 are respectively connected with the two ends of a PVC steel wire hose A5, each steel pipe A6 is provided with the ball valve A4, and the liquid level scale A2 is pasted on the tank body of the upper liquid level tank 1;
the lower-layer liquid level measuring unit of the washing tower comprises a dehydrator 11, a liquid level scale B12, a ball valve B14, a PVC steel wire hose B15 and a steel pipe B16, wherein the dehydrator 11 is connected with the bottom of a lower-layer pot of the washing tower, the upper end and the lower end of the dehydrator 11 are respectively welded with the steel pipe B16, one ends of two steel pipes B16 are respectively communicated with the inside of the dehydrator 11, the other ends of the two steel pipes B16 are respectively connected with the two ends of the PVC steel wire hose B15, each steel pipe B16 is provided with the ball valve B14, and the liquid level scale B12 is adhered to the dehydrator 11.
In this embodiment, refer to attached figure 1, 2, scrubbing tower upper liquid level jar 1 links to each other with scrubbing tower upper pot bottom, weld a steel pipe respectively on the 1 upper and lower jar of bodies of scrubbing tower upper liquid level jar, the one end of steel pipe communicates with each other with upper liquid level jar 1 is inside, PVC steel wire hose is connected to the other end, install the ball valve on every steel pipe, PVC steel wire hose is fixed on the steel pipe by the larynx hoop checkpost, PVC steel wire hose one end is connected on the upper portion steel pipe of liquid level jar 1, one end is connected on the lower part steel pipe of liquid level jar 1, the liquid level scale is pasted on the jar body of upper liquid level jar 1. When the upper and lower ball valves are opened, the liquid level inside the upper liquid level tank 1 can flow to the PVC steel wire hose from the lower part, the upper part can enter coal gas, the liquid level of the PVC steel wire hose 5 is observed, the liquid level height observed in the PVC steel wire hose is compared with the liquid level marked on the same height of the liquid level scale stuck on the upper liquid level tank 1, and the real height of the upper liquid level of the washing tower can be effectively monitored.
Referring to the attached drawings 1 and 3, the bottom of a boiler at the lower layer of the washing tower is connected with the bottom of a dehydrator 11 at the back of the washing tower, the real liquid level at the lower layer of the washing tower can be obtained by monitoring the liquid level in the dehydrator 6, and the monitoring principle is the same as that of the liquid level at the upper layer.
Claims (3)
1. The utility model provides a three circumferential weld scrubbing tower liquid level measurement device which characterized in that: comprises an upper liquid level measuring unit of a washing tower and a lower liquid level measuring unit of the washing tower;
the upper liquid level measuring unit of the washing tower comprises an upper liquid level tank (1), a liquid level scale A (2), a ball valve A (4), a PVC steel wire hose A (5) and steel pipes A (6), wherein the upper liquid level tank (1) is connected with the upper pot bottom of the washing tower, the upper end and the lower end of the upper liquid level tank (1) are respectively welded with one steel pipe A (6), one ends of the two steel pipes A (6) are respectively communicated with the inside of the upper liquid level tank (1), the other ends of the two steel pipes A (6) are respectively connected with the two ends of the PVC steel wire hose A (5), each steel pipe A (6) is provided with the ball valve A (4), and the liquid level scale A (2) is adhered to the upper liquid level tank (1);
the lower-layer liquid level measuring unit of the washing tower comprises a dehydrator (11), a liquid level scale B (12), a ball valve B (14), a PVC steel wire hose B (15) and a steel pipe B (16), the dehydrator (11) is connected with the bottom of a boiler at the lower layer of the washing tower, the upper end and the lower end of the dehydrator (11) are respectively welded with the steel pipe B (16), one ends of the two steel pipe B (16) are respectively communicated with the inside of the dehydrator (11), the other ends of the two steel pipe B (16) are respectively connected with the two ends of the PVC steel wire hose B (15), the ball valve B (14) is installed on each steel pipe B (16), and the liquid level scale B (12) is pasted on the dehydrator (11).
2. The apparatus of claim 1, wherein: the other ends of two steel pipes A (6) in the upper liquid level measuring unit of the washing tower are respectively connected with the two ends of a PVC steel wire hose A (5) through a hose clamp A (3).
3. The apparatus of claim 1, wherein: the other ends of two steel tubes B (16) in the lower liquid level measuring unit of the washing tower are respectively connected with the two ends of a PVC steel wire hose B (15) through hose clamp B (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121495510.2U CN215639646U (en) | 2021-07-02 | 2021-07-02 | Liquid level measuring device for three-circular-seam washing tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121495510.2U CN215639646U (en) | 2021-07-02 | 2021-07-02 | Liquid level measuring device for three-circular-seam washing tower |
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| Publication Number | Publication Date |
|---|---|
| CN215639646U true CN215639646U (en) | 2022-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121495510.2U Active CN215639646U (en) | 2021-07-02 | 2021-07-02 | Liquid level measuring device for three-circular-seam washing tower |
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| Country | Link |
|---|---|
| CN (1) | CN215639646U (en) |
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2021
- 2021-07-02 CN CN202121495510.2U patent/CN215639646U/en active Active
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