PH and conductivity detection device for chlorinated tail gas absorption tower

Abstract

The utility model relates to a PH and conductivity detection device for a chlorinated tail gas absorption tower, which comprises a PH detector and a conductivity detector, and the PH detector and the conductivity detector are sequentially mounted on a detection pipeline in series; the PH detector comprises a cylindrical main body, a baffle and a probe, the cylindrical main body is designed to be a hollow main body, the lower end of the cylindrical main body is designed to be sealed, the upper end of the cylindrical main body is covered with a sealing cover, an inlet and an outlet are designed in the two sides of the cylindrical main body respectively and are connected to the detection pipeline in series through flanges, and the probe is installed on the sealing cover of the cylindrical main body; the probe extends into the cylindrical main body and is close to the bottom, and baffles are vertically mounted in the cylindrical main body and are close to the inlet and the outlet respectively; the device has the advantages that two groups of chlorinated tail gas absorption towers share one group of PH detector and conductivity detector, the design is ingenious, the structure is reasonable and compact, and the space is saved; meanwhile, a baffle is designed in the PH detector to effectively prevent the probe from being scoured and damaged by water, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of chlorination tail gas absorption tower, specifically relates to a kind of chlorination tail gas absorption tower PH and conductivity detection device. BACKGROUND

[0002] Chlorination tail gas absorption tower is a kind of equipment specially used for treating high-concentration chlorine gas, and the chlorine absorption tower adopts gas water washing cooling, spraying absorption, bubble immersion, gas-liquid foam separation and other multi-stage combined treatment principles. Through the combined use of multilayer packing, multi-stage spraying, forced humidification absorption and physical collision, harmful gases or gases needing neutralization are fully treated.

[0003] However, long-time operation requires water quality detection of the circulating aqueous solution in the chlorination tail gas absorption tower, monitoring of PH and conductivity, and how to effectively monitor is a difficult problem to be solved at present. SUMMARY

[0004] To solve the above technical problems, the utility model provides a kind of chlorination tail gas absorption tower PH and conductivity detection device, and the design is ingenious, and the structure is reasonable and compact, and PH and conductivity are effectively monitored.

[0005] The technical scheme of the utility model comprises:

[0006] The pH and conductivity detection device for the chlorination tail gas absorption tower is designed with two sets of absorption towers: absorption tower A and absorption tower B. Absorption tower A has a first circulation pump on one side, with its inlet connected to the lower end and its outlet connected to the upper end. The outlet of the first circulation pump is also connected to the first port of a first three-way valve via a pipeline. Absorption tower B has a second circulation pump on one side, with its inlet connected to the lower end and its outlet connected to the upper end. The outlet of the second circulation pump is also connected to the second port of the first three-way valve via a pipeline. The third port of the first three-way valve is connected to the first port of a second three-way valve via a detection pipeline, and the second three-way valve is connected to... At the lower end of chlorination tail gas absorption tower A, a second three-way valve is connected to the lower end of chlorination tail gas absorption tower B through a third port. A pH and conductivity detection device for the chlorination tail gas absorption tower is installed on the detection pipeline. This device includes a pH meter and a conductivity meter, which are connected in series on the detection pipeline. The pH meter includes a cylindrical body, a baffle, and a probe. The cylindrical body is hollow, with a sealed lower end and a sealing cap on the upper end. Inlet and outlet are designed on both sides of the cylindrical body, connected in series to the detection pipeline via flanges. A probe is installed on the sealing cap of the cylindrical body, extending into the interior of the cylindrical body near the bottom. A baffle is vertically installed inside the cylindrical body near the inlet and outlet positions.

[0007] The detection pipeline is also connected to a process water pipeline, which is also equipped with a solenoid valve.

[0008] The process water pipeline is connected to the inlet pipeline of the pH meter.

[0009] The pH and conductivity detection device of the chlorination tail gas absorption tower also includes a control box. The control box is electrically connected to the first circulation pump, the second circulation pump, the first three-way valve, the second three-way valve, the pH meter and the conductivity meter. The control box also controls the installation of an audible and visual alarm.

[0010] The baffle is designed as an arc-shaped plate, which is vertically installed on the bottom of the cylindrical body, and the arc-shaped groove of the arc-shaped plate is designed to face the probe.

[0011] The advantages of this invention are that it is designed so that two sets of chlorination tail gas absorption towers share a single pH meter and conductivity meter. The design is ingenious, the structure is reasonable and compact, and it saves space. At the same time, the internal baffle of the pH meter effectively prevents water from eroding and damaging the probe, thus extending its service life. Attached Figure Description

[0012] Fig. 1 is a schematic diagram of the utility model.

[0013] Fig. 2 is a schematic diagram of the utility model.

[0014] Fig. 3 is a schematic diagram of the utility model. DETAILED DESCRIPTION

[0015] Referring to the drawings Figs. 1-3 , the chlorination tail gas absorption tower PH and conductivity detection device, the chlorination tail gas absorption tower is designed with two groups, respectively, is chlorination tail gas absorption tower A and chlorination tail gas absorption tower B, the chlorination tail gas absorption tower A side is designed with the first circulating pump 1, the first circulating pump 1 import end connects the lower end of chlorination tail gas absorption tower A, the outlet end of the first circulating pump 1 is connected to the upper end of chlorination tail gas absorption tower A, the outlet end of the first circulating pump 1 is still connected with the first three-way valve 2 first port through the pipeline;The chlorination tail gas absorption tower B side is designed with the second circulating pump 3, the second circulating pump 3 import end connects the lower end of chlorination tail gas absorption tower B, the outlet end of the second circulating pump 3 is connected to the upper end of chlorination tail gas absorption tower B, the outlet end of the second circulating pump 3 is still connected with the second three-way valve 4 second port through the pipeline;The third port of the first three-way valve 2 is connected with the first port of the second three-way valve 4 through the detection pipeline, the second three-way valve 4 is connected with the lower end of chlorination tail gas absorption tower A through the second port, and the second three-way valve 4 is connected with the lower end of chlorination tail gas absorption tower B through the third port, and the detection pipeline is sequentially connected with the PH detector 5 and the conductivity detector 6;The PH detector 5 includes a cylindrical body 51, a baffle 52 and a probe 53, the cylindrical body 51 is designed as a hollow body, the lower end of the cylindrical body 51 is sealed, the upper end of the cylindrical body 51 is covered with a sealing cover, the two sides of the cylindrical body 51 are designed with an inlet and an outlet, and the inlet and outlet positions are connected in series on the detection pipeline through flanges, the probe 53 is installed on the sealing cover of the cylindrical body 51, the probe 53 extends into the inside of the cylindrical body 51 close to the bottom position, and a baffle 52 is vertically installed close to the inlet and outlet positions in the cylindrical body 51.

[0016] The detection pipeline is also connected with the process water pipeline 7, and the process water pipeline 7 is also designed with a solenoid valve.The process water pipeline 7 is connected on the inlet pipeline of the PH detector 5.The process water pipeline is designed to supplement water and replace water.

[0017] The chlorination tail gas absorption tower PH and conductivity detection device further comprises a control box, the control box is electrically connected with the first circulating pump 1, the second circulating pump 3, the first three-way valve 2, the second three-way valve 4, the PH detector 5 and the conductivity detector 6, and a sound-light alarm is further installed on the control box and controlled by the control box.

[0018] The baffle 52 is designed as an arc-shaped plate, is vertically installed on the bottom of the cylindrical main body 51, and the arc-shaped groove of the arc-shaped plate is designed and installed towards the probe 53. The arc-shaped plate effectively prevents water from impacting the probe, and after water flow enters the cylindrical main body, the water flow is slowed down, and the system is safe and reliable.

[0019] In use, one group of the chlorination tail gas absorption tower A and the chlorination tail gas absorption tower B is used, and the other group is standby. Both groups are circulated and extracted by the first circulating pump or the second circulating pump. When the PH and the conductivity need to be detected, the control box controls the first three-way valve to connect the second three-way valve through the detection pipeline. At this time, the second three-way valve transports the water solution into the corresponding chlorination tail gas absorption tower through the corresponding port, and the water solution in the tower is detected by the PH detector 5 and the conductivity detector 6 on the detection pipeline. In this way, the PH and the conductivity can be monitored and detected. The PH value is detected by the PH detector to determine whether the water needs to be replaced, the salt concentration in the water is determined by the conductivity, and the water is replaced in advance and the water is prevented from freezing in winter. The two groups of chlorination tail gas absorption towers can be switched and used by the control box.

Claims

1. Chlorination tail gas absorption tower PH and conductivity detection device, the chlorination tail gas absorption tower is designed with two groups, which are chlorination tail gas absorption tower A and chlorination tail gas absorption tower B, one side of the chlorination tail gas absorption tower A is designed with a first circulating pump, the inlet end of the first circulating pump is connected with the lower end of the chlorination tail gas absorption tower A, the outlet end of the first circulating pump is connected with the upper end of the chlorination tail gas absorption tower A, and the outlet end of the first circulating pump is also connected with the first port of a first three-way valve through a pipeline; one side of the chlorination tail gas absorption tower B is designed with a second circulating pump, the inlet end of the second circulating pump is connected with the lower end of the chlorination tail gas absorption tower B, the outlet end of the second circulating pump is connected with the upper end of the chlorination tail gas absorption tower B, and the outlet end of the second circulating pump is also connected with the second port of the first three-way valve through a pipeline; the third port of the first three-way valve is connected with the first port of a second three-way valve through a detection pipeline, the second three-way valve is connected with the lower end of the chlorination tail gas absorption tower A through the second port, and the second three-way valve is connected with the lower end of the chlorination tail gas absorption tower B through the third port, characterized in that, The detection pipeline is provided with a chlorination tail gas absorption tower PH and conductivity detection device, and the chlorination tail gas absorption tower PH and conductivity detection device comprises a PH detector and a conductivity detector.

2. The chlorinated tail gas absorption column PH and conductivity detection device according to claim 1, characterized in that, The detection pipeline is further connected with a process water pipeline, and the process water pipeline is further provided with an electromagnetic valve.

3. The chlorinated tail gas absorption column PH and conductivity detection device according to claim 2, characterized in that, The process water pipeline is connected to the PH detector inlet pipeline.

4. The chlorinated tail gas absorption column PH and conductivity detection device according to claim 1, characterized in that, The chlorination tail gas absorption tower PH and conductivity detection device further comprises a control box, which is electrically connected with the first circulating pump, the second circulating pump, the first three-way valve, the second three-way valve, the PH detector and the conductivity detector.

5. The chlorinated tail gas absorption column PH and conductivity detection device according to claim 1, characterized in that, The baffle is designed as an arc-shaped plate, which is vertically installed on the bottom of the cylindrical body, and the arc-shaped groove of the arc-shaped plate is designed to face the probe.

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