Online monitoring device for concentration of accident chlorine alkali liquor

Abstract

The utility model relates to an accident chlorine alkali liquor concentration on-line monitoring device which is characterized in that a mounting wall is provided with a through hole, a probe of a detector is inserted into the through hole, the detector is connected with a control host through a cable, the probe is sleeved with a fixing disc, the mounting wall is provided with a connecting ring, and the fixing disc can be inserted into the connecting ring; a screw cap is connected to the outer side of the connecting ring through threads, an abutting ring is rotationally arranged in the screw cap, and the abutting ring can abut against the fixing disc; the probe of the detector is inserted into the through hole and protrudes to the inner side of the mounting wall, meanwhile, the fixing disc is inserted into the connecting ring, and the screw cap is connected with the connecting ring through threads until the abutting ring abuts against the fixing disc, so that the detector and the probe are mounted on the mounting wall, and the concentration of alkali liquor is monitored in real time. Dismounting can be achieved only by screwing off the screw cap, and the mounting and dismounting process is convenient for a single person to operate.

Description

Technical Field

[0001] This utility model relates to the field of chlor-alkali chemical technology, and in particular to an online monitoring device for the concentration of chlor-alkali solution in an accident. Background Technology

[0002] In chlor-alkali chemical production, the emergency chlorine treatment system needs to quickly neutralize leaked chlorine gas with an alkaline solution (such as sodium hydroxide). Precise control of the alkaline solution concentration is crucial to ensuring neutralization efficiency and safety. Too low a concentration may lead to incomplete neutralization, resulting in residual chlorine gas and posing a danger; too high a concentration wastes raw materials and increases costs. Traditional methods for detecting alkaline solution concentration include manual sampling or offline analysis, but these methods cannot provide real-time monitoring and suffer from latency.

[0003] Currently, infrared monitoring probes are used for real-time monitoring of alkaline solution concentration. For example, Chinese utility model patent CN211263149U discloses an infrared detection system for monitoring the concentration of Plesson alkaline solution. This system involves inserting the probe into a socket on the mounting surface, allowing the probe to contact the alkaline solution for detection. The probe can also be disassembled for cleaning. However, this method requires pulling both sides of the probe simultaneously when removing it, making it inconvenient for single-person operation. Utility Model Content

[0004] The technical problem this invention aims to solve is that existing alkali concentration monitoring systems require pulling both sides of the pull plate simultaneously when disassembling the detection probe, which is inconvenient for single-person operation.

[0005] To address the aforementioned issues, this utility model provides an online monitoring device for the concentration of chlor-alkali solution in accidents. A through hole is provided on the mounting wall, and the detector probe is inserted into the through hole. The detector is connected to a control host via a cable. A fixing plate is fitted over the probe. A connecting ring is provided on the mounting wall, and the fixing plate can be inserted into the connecting ring. A screw cap is threaded onto the outside of the connecting ring, and an abutment ring is rotatably provided inside the screw cap, which abuts against the fixing plate.

[0006] The online monitoring device for the concentration of chlor-alkali solution in accidents provided by this utility model also has the following technical features:

[0007] The cap has a receiving hole corresponding to the detector.

[0008] The cap is rotatably connected to the abutment ring via a thrust bearing.

[0009] The abutment ring is made of natural rubber.

[0010] A sealing element is provided inside the through hole.

[0011] The outer surface of the screw cap is provided with anti-slip texture.

[0012] The present invention has the following advantages: the detector probe is inserted into the through hole and protrudes to the inner side of the mounting wall, while the fixing plate is inserted into the connecting ring. The cap is connected to the connecting ring by threads until the abutting ring abuts against the fixing plate, so as to install the detector and probe on the mounting wall for real-time monitoring of the alkaline concentration. Disassembly can be achieved simply by unscrewing the cap, and the installation and disassembly process is convenient for single-person operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the connection structure of this utility model;

[0014] Figure 2 for Figure 1 Exploded views of some parts. Detailed Implementation

[0015] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0016] like Figures 1 to 2 As shown, the online monitoring device for chlor-alkali liquid concentration in accidents of this utility model has a through hole 11 on the mounting wall 10. The probe 13 of the detector 12 is inserted into the through hole 11. The detector 12 is connected to the control host 14 via a cable. The probe 13 is covered with a fixing plate 15, and the fixing plate 15 has a corresponding sleeve hole. The mounting wall 10 is provided with a connecting ring 16, and the fixing plate 15 can be inserted into the connecting ring 16. The outer side of the connecting ring 16 is connected to a screw cap 17 by a thread. The screw cap 17 is rotatably provided with an abutment ring 18, which can abut against the fixing plate 15.

[0017] Insert the probe 13 of the detector 12 into the through hole 11 and protrude to the inside of the mounting wall 10. At the same time, insert the fixing plate 15 into the connecting ring 16. Connect the screw cap 17 to the connecting ring 16 through the thread until the abutting ring 18 abuts against the fixing plate 15, so as to install the detector 12 and the probe 13 on the mounting wall 10 for real-time monitoring of the alkali concentration. The device can be disassembled simply by unscrewing the screw cap 17. The installation and disassembly process is convenient for single-person operation.

[0018] The mounting wall 10 is the wall of a pipe or tank containing alkali solution. The concentration of the alkali solution is positively correlated with its conductivity; that is, the higher the concentration, the greater the conductivity. The probe 13, such as a conductivity sensor, is directly immersed in the alkali solution. By measuring the conductivity value of the solution, the actual concentration of the alkali solution is indirectly calculated. The detector 12 is a signal processing unit that converts the analog electrical signal, such as the conductivity value, acquired by the probe 13 into a digital signal and transmits it to the control host 14, thereby achieving online monitoring of the alkali solution concentration. Furthermore, the surface of the probe 13 can be coated with a corrosion-resistant coating, such as titanium alloy or polytetrafluoroethylene coating, to adapt to the strong corrosiveness of chlor-alkali solutions and the high-temperature / high-pressure environment of accident conditions.

[0019] Preferably, the cap 17 has a receiving hole 19 corresponding to the detector 12.

[0020] Preferably, the screw cap 17 is rotatably connected to the abutment ring 18 via a thrust bearing 20.

[0021] The cap 17 includes an integrally formed cylindrical body 21 and a side plate 22. The inner surface of the cylindrical body 21 is threaded. The receiving hole 19 is opened on the side plate 22. The inner side of the side plate 22 is rotatably connected to the abutment ring 18 through a thrust bearing 20. The thickness of the inner side of the cylindrical body 21 is less than the thickness of the connecting ring 16, so that when the cap 17 is installed on the connecting ring 16 by threads, the abutment ring 18 first abuts against the fixed plate 15.

[0022] Preferably, the abutment ring 18 is made of natural rubber. The abutment ring 18 can also be made of other elastic, soft materials such as synthetic rubber, silicone, thermoplastic elastomers, or polyurethane, while also possessing certain anti-slip properties to improve the installation stability of the fixing plate 15, detector 12, and probe 13. After the abutment ring 18 abuts against the fixing plate 15, due to its elasticity and anti-slip properties, the cap 17 can be rotated until it is tightened, at which point the abutment ring 18 comes to a stop.

[0023] Preferably, a sealing element is provided in the through hole 11. The sealing element may be composed of multiple sealing rings or a sealing cylinder may be used directly.

[0024] Preferably, the outer surface of the screw cap 17 is provided with anti-slip texture 23.

[0025] The working principle of this utility model is as follows:

[0026] Insert the probe 13 of the detector 12 into the through hole 11 and protrude to the inside of the mounting wall 10. At the same time, position the fixing plate 15 inside the connecting ring 16. Connect the screw cap 17 to the connecting ring 16 through the thread until the abutting ring 18 abuts against the fixing plate 15. Continue to tighten the screw cap 17 to install the detector 12 and probe 13 on the mounting wall 10 for real-time monitoring of the alkali concentration. When disassembling, simply unscrew the screw cap 17 to disassemble. The installation and disassembly process is convenient for single-person operation.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An online monitoring device for the concentration of chlor-alkali solution in an accident, characterized in that, A through hole (11) is provided on the mounting wall (10). The probe (13) of the detector (12) is inserted into the through hole (11). The detector (12) is connected to the control host (14) via a cable. The probe (13) is covered with a fixing plate (15). A connecting ring (16) is provided on the mounting wall (10). The fixing plate (15) can be inserted into the connecting ring (16). A screw cap (17) is connected to the outside of the connecting ring (16) by a thread. An abutment ring (18) is rotatably provided inside the screw cap (17). The abutment ring (18) can abut against the fixing plate (15).

2. The online monitoring device for the concentration of chlor-alkali solution in an accident according to claim 1, characterized in that, The cap (17) has a receiving hole (19) corresponding to the detector (12).

3. The online monitoring device for the concentration of chlor-alkali solution in an accident according to claim 1, characterized in that, The cap (17) is rotatably connected to the abutment ring (18) via a thrust bearing (20).

4. The online monitoring device for the concentration of chlor-alkali solution in an accident according to claim 1, characterized in that, The abutment ring (18) is made of natural rubber.

5. The online monitoring device for the concentration of chlor-alkali solution in an accident according to claim 1, characterized in that, A sealing element is provided inside the through hole (11).

6. The online monitoring device for the concentration of chlor-alkali solution in an accident according to claim 1, characterized in that, The outer surface of the screw cap (17) is provided with anti-slip texture (23).

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