Liquid level measuring device for desulfurizing absorption tower

Abstract

The utility model belongs to the technical field of liquid level measurement, and particularly relates to a desulfurizing absorption tower liquid level measuring device which comprises an absorption tower body, a connecting pipe is arranged at the bottom of one side of the absorption tower body, a first sealing sleeve is sleeved with the opening end of the connecting pipe, and the surface of the first sealing sleeve is in threaded connection with the surface of a liquid inlet in the bottom of a liquid level barrel through a first bolt assembly. A mounting head is arranged at the top of the liquid level barrel. According to the utility model, the connecting pipe, the first sealing sleeve, the first bolt assembly, the liquid level barrel, the mounting head, the second sealing sleeve, the radar liquid level meter and the second bolt assembly are matched with one another, and the liquid level barrel connected to one side of the absorption tower is utilized, so that the liquid levels inside the two are kept at the same horizontal height; therefore, the liquid level in the absorption tower can be indirectly known, and the situation that the liquid level is affected by complex working conditions in the absorption tower during liquid level measurement, and consequently the measurement result deviates is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of liquid level measurement technology, specifically relating to a liquid level measuring device for a desulfurization absorption tower. Background Technology

[0002] The desulfurization absorption tower is a key piece of equipment in a flue gas desulfurization system, mainly used to remove harmful gases such as sulfur dioxide from flue gas. It works by allowing the flue gas to come into full contact with the absorbent (such as limestone-gypsum slurry), causing a chemical reaction that absorbs the sulfur dioxide and converts it into other substances, thereby purifying the flue gas and reducing pollutant emissions.

[0003] The liquid level measurement device in the desulfurization absorption tower plays a crucial role. Firstly, it accurately monitors the liquid level in the absorption tower in real time, providing operators with intuitive level information. This allows them to rationally control the amount of absorbent added and the circulation rate of the slurry based on the liquid level, ensuring the desulfurization reaction proceeds under suitable liquid level conditions to improve desulfurization efficiency. Secondly, the liquid level measurement device prevents the absorption tower from becoming too high or too low. An excessively high liquid level may lead to slurry overflow, causing environmental pollution and material waste; an excessively low liquid level may cause pumps and other equipment to run dry, damaging the equipment and affecting the normal progress of the desulfurization reaction. Furthermore, the liquid level measurement device provides critical data support for the automated control of the entire desulfurization system, enabling stable system operation and optimized adjustment, ensuring the efficient, safe, and reliable operation of the desulfurization system.

[0004] Existing absorber level measuring devices are generally installed on the tower body to measure the height of the slurry inside. However, the working conditions inside the absorber are quite complex, and equipment such as agitators may affect the detection results of the level measuring device, thereby affecting the accuracy of the level measurement results inside the absorber. Utility Model Content

[0005] The purpose of this utility model is to provide a liquid level measuring device for desulfurization absorption towers, which aims to solve the problem that existing liquid level measuring devices for absorption towers are generally installed on the tower body to measure the height of the slurry inside. However, the working conditions inside the absorption tower are relatively complex, and equipment such as agitators may affect the detection results of the liquid level measuring device, thereby affecting the accuracy of the liquid level measurement results inside the absorption tower.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a desulfurization absorption tower level measuring device, comprising an absorption tower body, a connecting pipe provided at the bottom of one side of the absorption tower body, a first sealing sleeve fitted inside the open end of the connecting pipe, the surface of the first sealing sleeve being threadedly connected to the surface of the bottom inlet of the level tank by a first bolt assembly, an installation head provided at the top of the level tank, a second sealing sleeve fitted inside the inner wall of the installation head, the inner wall of the second sealing sleeve being fitted to the surface of a radar level gauge, a second bolt assembly passing through the second sealing sleeve and threadedly connected to the top of the installation head through the surface of the radar level gauge connecting plate, a cleaning pipe connected to the bottom of the level tank on the other side of the inlet, a third sealing sleeve fitted inside the open end of the cleaning pipe, the other side of the third sealing sleeve abutting against an installation plate, a fixing bolt passing through the surface of the installation plate and threadedly connected to the flange on the surface of the cleaning pipe, an electric telescopic cylinder installed on the surface of the installation plate, a cleaning brush head fitted inside the telescopic head of the electric telescopic cylinder and threadedly connected through the fixing bolt.

[0007] In a preferred embodiment of the desulfurization absorption tower liquid level measuring device of this utility model, the connecting pipe, the first sealing sleeve, the first bolt assembly, and the liquid level tank form a threaded connection structure.

[0008] As a preferred embodiment of the desulfurization absorption tower liquid level measuring device of this utility model, the mounting head, the second sealing sleeve, the radar liquid level gauge, and the second bolt assembly form a threaded connection structure.

[0009] As a preferred embodiment of the desulfurization absorption tower liquid level measuring device of this utility model, a conical groove is formed on the inner wall of the second sealing sleeve, and the shape and size of the groove are adapted to the upper end of the radar liquid level gauge probe.

[0010] In a preferred embodiment of the desulfurization absorption tower liquid level measuring device of this utility model, the cleaning pipe, the third sealing sleeve, and the mounting plate form a threaded connection structure.

[0011] As a preferred embodiment of the desulfurization absorption tower liquid level measuring device of this utility model, a rubber ring is provided at the intersection of the mounting plate and the electric telescopic cylinder, which is fitted onto the surface of the telescopic end of the electric telescopic cylinder.

[0012] As a preferred embodiment of the desulfurization absorption tower liquid level measuring device of this utility model, the cleaning brush head has cleaning bristles distributed in a ring on its surface, and the shape and size of the cleaning brush head are adapted to the inner wall of the connecting pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] By cooperating with the connecting pipe, the first sealing sleeve, the first bolt assembly, the liquid level tank, the mounting head, the second sealing sleeve, the radar level gauge, and the second bolt assembly, and using the liquid level tank connected to one side of the absorption tower, the liquid levels inside both are kept at the same level. Then, by measuring the liquid level in the liquid level tank, the liquid level inside the absorption tower can be indirectly determined, thus avoiding the influence of complex operating conditions inside the absorption tower during liquid level measurement, which could lead to deviations in the measurement results.

[0015] By utilizing the cooperation between the cleaning pipe, the third sealing sleeve, the mounting plate, the electric telescopic cylinder, and the cleaning brush head, the electric telescopic cylinder is activated to drive the connected cleaning brush head to reciprocate on the inner wall of the connecting pipe and the liquid level tank inlet. This scrapes away the solid particles and other impurities contained in the slurry in the absorption tower that are deposited and piled on the inner wall of the pipe, preventing them from clogging the pipe and affecting the slurry from entering the liquid level tank. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a side view of the structure of this utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the liquid level tank of this utility model;

[0020] Figure 4 This is a cross-sectional exploded view of the liquid level tank of this utility model.

[0021] In the diagram: 1. Absorption tower body; 2. Connecting pipe; 3. First sealing sleeve; 4. First bolt assembly; 5. Liquid level tank; 6. Mounting head; 7. Second sealing sleeve; 8. Radar level gauge; 9. Second bolt assembly; 10. Cleaning pipe; 11. Third sealing sleeve; 12. Mounting plate; 13. Electric telescopic cylinder; 14. Cleaning brush head. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 This utility model provides the following technical solution: a desulfurization absorption tower liquid level measuring device, including an absorption tower body 1, a connecting pipe 2 at the bottom of one side of the absorption tower body 1, a first sealing sleeve 3 inside the opening end of the connecting pipe 2, the surface of the first sealing sleeve 3 being threadedly connected to the surface of the bottom inlet of the liquid level tank 5 by a first bolt assembly 4, an installation head 6 at the top of the liquid level tank 5, a second sealing sleeve 7 being fitted onto the inner wall surface of the installation head 6, the inner wall of the second sealing sleeve 7 being fitted onto the surface of the radar liquid level gauge 8, a second bolt assembly 9 passing through the second sealing sleeve 7 and threadedly connected to the top of the installation head 6, a cleaning pipe 10 connected to the bottom of the liquid level tank 5 on the other side of the inlet, a third sealing sleeve 11 being fitted onto the opening end of the cleaning pipe 10, the other side of the third sealing sleeve 11 abutting against the installation plate 12, a fixing bolt passing through the surface of the installation plate 12 and threadedly connected to the flange on the surface of the cleaning pipe 10, an electric telescopic cylinder 13 being installed on the surface of the installation plate 12, a cleaning brush head 14 being fitted onto the telescopic head surface of the electric telescopic cylinder 13 and threadedly connected by a fixing bolt.

[0024] In this technical solution, the absorption tower body 1 and the radar level gauge 8 are both existing technologies, and a large number of related components are installed in them. Since they are existing technologies and the core content of this technical solution is irrelevant to them, they will not be described in detail in this technical solution.

[0025] In this solution, the radar level gauge model 8 is: DY-6053CWJ horn-mouth radar level gauge.

[0026] Preferably, the connecting pipe 2, the first sealing sleeve 3, the first bolt assembly 4, and the liquid level tank 5 form a threaded connection structure.

[0027] In practical use, the opening end of the connecting pipe 2 provided on one side of the absorption tower body 1 is fitted with the first sealing sleeve 3, and the other end of the first sealing sleeve 3 is fitted with the liquid inlet at the bottom of the liquid level tank 5. The connecting pipe 2, the first sealing sleeve 3 and the liquid level tank 5 are then threaded together by the first bolt assembly 4, thereby sealing the connection between the connecting pipe 2 and the liquid level tank 5, so that the slurry in the absorption tower body 1 can flow into the liquid level tank 5.

[0028] Preferably, the mounting head 6, the second sealing sleeve 7, the radar level gauge 8, and the second bolt assembly 9 form a threaded connection structure.

[0029] In practical use, the second sealing sleeve 7 and the second bolt assembly 9 are used to fix the radar level gauge 8 on the top of the mounting head 6 while avoiding gaps at the connection between the two.

[0030] Preferably, a conical groove is formed on the inner wall of the second sealing sleeve 7, and the shape and size of the groove are adapted to the upper end of the radar level gauge 8 probe.

[0031] In practical use, the groove on the inner wall of the second sealing sleeve 7 is used to protect the lower probe of the radar level gauge 8.

[0032] Preferably, the cleaning tube 10, the third sealing sleeve 11, and the mounting plate 12 form a threaded connection structure.

[0033] In practical use, unscrew the fixing bolt that is threaded between the mounting plate 12 and the cleaning tube 10, and then take out the cleaning brush head 14 that is threaded on the electric telescopic cylinder 13 to clean it.

[0034] Preferably, a rubber ring is provided at the intersection of the mounting plate 12 and the electric telescopic cylinder 13, and is fitted onto the telescopic end surface of the electric telescopic cylinder 13.

[0035] In practical use, the rubber ring fitted on the surface of the electric telescopic cylinder 13 is used to fill the gap where it intersects with the surface of the mounting plate 12, thereby preventing the slurry in the liquid level tank 5 from flowing out.

[0036] Preferably, the cleaning brush head 14 has cleaning bristles distributed in a ring on its surface, and the shape and size of the cleaning brush head 14 are adapted to the inner wall of the connecting tube 2.

[0037] In practical use, the bristles on the surface of the cleaning brush head 14 are used to press against the inner wall of the connecting tube 2, thereby scraping and cleaning the impurities accumulated on the inner wall of the connecting tube 2 during reciprocating motion.

[0038] Working principle: When it is necessary to measure the liquid level of the slurry inside the absorption tower body 1, the opening end of the connecting pipe 2 on one side of the absorption tower body 1 is fitted with the first sealing sleeve 3, and the other end of the first sealing sleeve 3 is fitted with the inlet at the bottom of the liquid level tank 5. The connecting pipe 2, the first sealing sleeve 3, and the liquid level tank 5 are then threaded together using the first bolt assembly 4, thus sealing the connection between the connecting pipe 2 and the liquid level tank 5. This allows the slurry inside the absorption tower body 1 to flow into the liquid level tank 5, where a radar level gauge 8 installed on the top of the liquid level tank 5 is used for measurement. The radar wave is emitted from the probe, reflects back after encountering the liquid level surface inside the liquid level tank 5, and is received by the probe. The liquid level height is calculated by measuring the time difference between the radar wave emission and reception, thus measuring the liquid level height inside the liquid level tank 5. The absorption tower body 1 and the liquid level tank 5 are connected by a connecting pipe 2, so that the liquid levels inside both are at the same level. Therefore, by measuring the liquid level height inside the liquid level tank 5, the liquid level height inside the absorption tower body 1 can be determined, thus making the measurement result accurate and unaffected by the complex working conditions inside the absorption tower body 1.

[0039] In addition, during regular maintenance, the electric telescopic cylinder 13 can be activated periodically to extend the threaded cleaning brush head 14 on its telescopic head towards the connecting pipe 2. The cleaning brush head 14 then performs multiple reciprocating movements on the inner wall at the intersection of the connecting pipe 2 and the liquid level tank 5, thereby scraping away impurities deposited and piled up in the slurry inside the absorption tower body 1 inside the connecting pipe 2 and the liquid level tank 5. This prevents excessive accumulation from affecting the flow of slurry from the absorption tower body 1 into the liquid level tank 5, thus affecting the accuracy of the liquid level measurement results inside the absorption tower body 1. Alternatively, the fixing bolt threaded between the mounting plate 12 and the cleaning pipe 10 can be unscrewed to remove the cleaning brush head 14 threaded on the electric telescopic cylinder 13 for cleaning. This also cleans the impurities scraped out inside the liquid level tank 5, preventing excessive accumulation of impurities at the bottom of the liquid level tank 5.

[0040] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A desulphurisation absorption column level measuring device comprising an absorption column shell (1) characterised in that: A connecting pipe (2) is provided at the bottom of one side of the absorption tower body (1). A first sealing sleeve (3) is fitted inside the opening end of the connecting pipe (2). The surface of the first sealing sleeve (3) is threaded to the surface of the bottom inlet of the liquid level tank (5) by a first bolt assembly (4). An installation head (6) is provided at the top of the liquid level tank (5). A second sealing sleeve (7) is fitted on the inner wall surface of the installation head (6). The inner wall of the second sealing sleeve (7) is fitted onto the surface of the radar level gauge (8). The surface of the connecting plate of the radar level gauge (8) is penetrated by a second bolt assembly (9) and passes through the second sealing sleeve (7). The liquid level tank (5) is connected to the top of the mounting head (6) by a thread. The bottom of the liquid level tank (5) is connected to the cleaning pipe (10) on the other side of the inlet. The surface of the opening end of the cleaning pipe (10) is fitted with a third sealing sleeve (11). The other side of the third sealing sleeve (11) abuts against the mounting plate (12). The surface of the mounting plate (12) is connected to the flange on the surface of the cleaning pipe (10) by a fixing bolt. The surface of the mounting plate (12) is fitted with an electric telescopic cylinder (13). The surface of the telescopic head of the electric telescopic cylinder (13) is fitted with a cleaning brush head (14) and connected by a fixing bolt by a thread.

2. A desulphurisation tower level measuring device according to claim 1, characterised in that: The connecting pipe (2), the first sealing sleeve (3), the first bolt assembly (4), and the liquid level tank (5) form a threaded connection structure.

3. A desulphurization tower level measuring device according to claim 1, characterized in that: The mounting head (6), the second sealing sleeve (7), the radar level gauge (8), and the second bolt assembly (9) form a threaded connection structure.

4. A desulphurisation tower level measuring device according to claim 3, characterised in that: The inner wall of the second sealing sleeve (7) has a conical groove, and the shape and size of the groove are adapted to the upper end of the radar level gauge (8) probe.

5. The liquid level measuring device for a desulfurization absorption tower according to claim 1, characterized in that: The cleaning tube (10), the third sealing sleeve (11), and the mounting plate (12) form a threaded connection structure.

6. The liquid level measuring device for a desulfurization absorption tower according to claim 5, characterized in that: A rubber ring is provided at the intersection of the mounting plate (12) and the electric telescopic cylinder (13) and is fitted onto the telescopic end surface of the electric telescopic cylinder (13).

7. A desulfurization column liquid level measuring device according to claim 1, characterized in that: The cleaning brush head (14) has cleaning bristles distributed in a ring on its surface, and the shape and size of the cleaning brush head (14) are adapted to the inner wall of the connecting pipe (2).

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