Experimental electrolytic cell for detecting concentration and temperature gradient of electrolyte

Abstract

The utility model discloses an experimental electrolytic bath for detecting the concentration and temperature gradient of electrolyte, which comprises an experimental electrolytic bath, a probe mounting hole formed in the side surface of the experimental electrolytic bath, and a detection component mounted on the probe mounting hole, the detection assembly comprises a positioning column positioned and fixed on the probe mounting hole, a through hole formed in the positioning column along the axial direction of the positioning column, a conical hole formed in the opening part of the through hole, a rubber conical plug mounted in the conical hole, and a pair of detection holes formed in the rubber conical plug along the axial direction of the rubber conical plug; the detection rods and the capillary tubes are correspondingly inserted into the temperature sensors on the pair of detection holes in the rubber conical plug; the outer circle of the positioning column is in threaded connection with a pressing cap which is used for pressing the end face of the rubber conical plug so as to form sealing connection between the pair of detection holes of the rubber conical plug and the detection rod and the capillary tube of the temperature sensor respectively. The device can monitor the temperature and the concentration of the electrolyte at different positions in the electrolytic cell in real time.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrolytic cell technical field, concretely relates to an experimental electrolytic cell for detecting electrolyte concentration and temperature gradient. BACKGROUND

[0002] Ion-exchange membrane electrolyzer is the main equipment of chlor-alkali industry, and its production capacity, running state and energy consumption affect the benefit of enterprises. The current density, electrolyte temperature and concentration distribution in the electrolyzer affect the service life of ion-exchange membrane, electrolysis voltage and product quality. In order to improve the production capacity, the running current density of ion-exchange membrane electrolyzer is continuously improved, and the production capacity of unit electrolyzer is improved, thereby reducing the cost; on the other hand, various measures are taken to make the temperature and concentration distribution in the electrolyzer more uniform, improve the use environment of ion-exchange membrane, prolong the service life of ion-exchange membrane, and at the same time reduce the electrolysis voltage, thereby reducing the cost. Therefore, in order to better design and optimize the structure of electrolyzer and make the temperature and concentration distribution in the electrolyzer more uniform, it is necessary to improve the structure of the existing experimental electrolyzer. SUMMARY

[0003] In order to solve the above problems, the utility model provides an experimental electrolytic cell for detecting electrolyte concentration and temperature gradient, which aims to monitor the electrolyte temperature and concentration at different positions in the electrolyzer in real time. The specific technical scheme is as follows:

[0004] An experimental electrolytic cell for detecting electrolyte concentration and temperature gradient, comprising an experimental electrolytic cell, a probe mounting hole opened in the side surface of the experimental electrolytic cell, a detection assembly mounted on the probe mounting hole, the detection assembly comprising a positioning column positioned and fixed on the probe mounting hole, a through hole opened on the positioning column along the axial direction of the positioning column, a tapered hole provided at the opening of the through hole, a rubber tapered plug mounted in the tapered hole, a pair of detection holes opened on the rubber tapered plug along the axial direction of the rubber tapered plug, a detection rod of a temperature sensor and a capillary tube corresponding to the pair of detection holes inserted into the rubber tapered plug; a compression cap for pressing the end face of the rubber tapered plug is threadedly connected to the outer circle of the positioning column, so as to form a sealed connection between the pair of detection holes of the rubber tapered plug and the detection rod of the temperature sensor and the capillary tube.

[0005] As one of the preferred schemes for installing the detection assembly in the utility model, the probe mounting hole on the experimental electrolytic cell is a threaded hole, the front end of the positioning column is provided with a section of external thread, and the positioning column is connected in threaded cooperation with the probe mounting hole through the external thread.

[0006] Preferably, the outer thread of the front end of the positioning column is smaller than the outer circle of the positioning column, so that a stepped surface is formed between the outer circle of the positioning column and the outer thread, the stepped surface is in contact with the side surface of the experimental electrolytic cell, an annular groove is formed on the stepped surface, and a sealing ring is installed in the annular groove.

[0007] As the second preferred scheme of the detection assembly in the utility model, the probe mounting hole on the experimental electrolytic cell is a cylindrical hole, a flange is arranged on the outer circle of the positioning column, and the front end of the positioning column is positioned in the probe mounting hole.

[0008] Preferably, an annular groove is formed on one side of the flange of the positioning column in contact with the side surface of the experimental electrolytic cell, and a sealing ring is installed in the annular groove.

[0009] Preferably, the rubber tapered plug is a ternary rubber tapered plug.

[0010] In the utility model, the insertion direction of the detection rod of the temperature sensor and the capillary tube is parallel to the electrode mesh in the experimental electrolytic cell and is located in the anode chamber or the cathode chamber of the experimental electrolytic cell, and the detection rod of the temperature sensor and the capillary tube on the same detection assembly are arranged according to the up-down position.

[0011] Preferably, the detection assembly is also arranged at a position close to the liquid inlet of the electrolytic cell of the experimental electrolytic cell, and the detection assembly is also arranged at a position close to the liquid outlet of the electrolyte of the experimental electrolytic cell.

[0012] In the utility model, the capillary tube is connected with a peristaltic pump, and the peristaltic pump and the temperature sensor are connected with a controller respectively.

[0013] Preferably, the peristaltic pump is connected with an electrolyte collection pool, an electrolyte concentration detector is arranged on the electrolyte collection pool, and the electrolyte concentration detector is connected with a controller.

[0014] In the utility model, a plurality of detection assemblies are arranged in the same electrolytic chamber of the experimental electrolytic cell, and the detection rod of the temperature sensor and the capillary tube on the plurality of detection assemblies have different depths of insertion into the electrolytic cell.

[0015] The working principle of the utility model is as follows:

[0016] When the experimental electrolytic cell is working, the temperature sensors on the detection assembly detect the temperature of the electrolyte in the experimental electrolytic cell in real time; meanwhile, the electrolyte in the experimental electrolytic cell is extracted by the capillary connected with the peristaltic pump for sampling detection, so that the data of the electrolyte concentration in the experimental electrolytic cell can be obtained in real time. Note that the peristaltic pump extracts the electrolyte at a certain position in the experimental electrolytic cell at a certain speed, and the electrolyte should not be extracted too fast to prevent the electrolyte at other positions from being extracted.

[0017] The experimental electrolytic cell can monitor the temperature of different areas near the surface of the electrode mesh and the surface of the ion membrane and the temperature and concentration of the electrolyte at different positions in real time, thereby optimizing the design structure of the existing electrolytic cell. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic view of an experimental electrolytic cell for detecting electrolyte concentration and temperature gradient according to the present application;

[0019] Figure 2 is Figure 1 is a structural schematic view of one of the installation schemes of the detection assembly in the experimental electrolytic cell (the positioning column is connected with the side surface of the experimental electrolytic cell through threaded cooperation);

[0020] Figure 3 is Figure 1 is a structural schematic view of the second installation scheme of the detection assembly in the experimental electrolytic cell (the positioning column is connected with the side surface of the experimental electrolytic cell through flange).

[0021] In the drawing: 1, experimental electrolytic cell, 2, probe mounting hole, 3, detection assembly, 4, positioning column, 5, through hole, 6, conical hole, 7, rubber conical plug, 8, detection hole, 9, temperature sensor, 10, detection rod of temperature sensor, 11, capillary, 12, pressure cap, 13, external thread, 14, sealing ring, 15, flange, 16, screw, 17, electrode mesh, 18, electrolytic cell liquid inlet, 19, electrolyte liquid outlet, 20, peristaltic pump, 21, controller. DETAILED DESCRIPTION

[0022] The specific embodiments of the present application will be further described in combination with the drawings and examples. The following examples are only used to more clearly illustrate the technical scheme of the present application, and cannot be used to limit the protection scope of the present application.

[0023] For example, Figures 1 to 3The utility model discloses an embodiment for detecting electrolyte concentration and temperature gradient's experimental electrolytic cell, including experimental electrolytic cell 1, the probe mounting hole 2 of setting in the side of experimental electrolytic cell 1, install detection assembly 3 on probe mounting hole 2, detection assembly 3 includes the locating column 4 of locating and fixed on probe mounting hole 2, the through -hole 5 of setting on locating column 4 along the axial direction of locating column 4, the taper hole 6 of setting in the mouth of through -hole 5, install rubber taper plug 7 in taper hole 6, a pair of detection holes 8 on rubber taper plug 7 along the axial direction of rubber taper plug 7 are set up, the detection rod 10 and capillary tube of temperature sensor 9 corresponding insertion to a pair of detection holes 8 on rubber taper plug 7, still have screw connection on the outer circle of locating column 4 for pressing the end surface of rubber taper plug 7 to be used for forming the sealed connection between a pair of detection holes 8 of rubber taper plug 7 and the detection rod 10 and capillary tube 11 of temperature sensor 9 of the pressure cap 12.

[0024] As one of the preferred schemes of the installation of the detection assembly in the embodiment, the probe mounting hole 2 on the experimental electrolytic cell 1 is a threaded hole, the front end of the locating column 4 is provided with an external thread 13, and the locating column 4 is connected in threaded cooperation with the probe mounting hole 2 through the external thread 13.

[0025] Preferably, the outer thread 13 of the front end of the locating column 4 has an outer circle smaller than that of the locating column 4, so that a stepped surface in contact with the side surface of the experimental electrolytic cell 1 is formed between the outer circle of the locating column 4 and the outer circle of the external thread 13, an annular groove is formed in the stepped surface, and a sealing ring 14 is installed in the annular groove.

[0026] As the second preferred scheme of the installation of the detection assembly in the embodiment, the probe mounting hole 2 on the experimental electrolytic cell 1 is a cylindrical hole, a flange 15 is arranged on the outer circle of the locating column 4, and a section of the outer circle of the front end of the locating column 4 is positioned in the probe mounting hole 2, and the flange 15 is fixed to the side surface of the experimental electrolytic cell 1 through a screw 16.

[0027] Preferably, a ring groove is formed in one side of the flange 15 of the locating column 4 in contact with the side surface of the experimental electrolytic cell 1, and a sealing ring 14 is installed in the ring groove.

[0028] Preferably, the rubber taper plug 7 is a ternary rubber taper plug.

[0029] In the embodiment, the insertion direction of the detection rod 10 and the capillary tube 11 of the temperature sensor 9 is parallel to the electrode mesh 17 in the experimental electrolytic cell 1 and is located in the anode chamber or the cathode chamber of the experimental electrolytic cell 1, and the detection rod 10 and the capillary tube 11 of the temperature sensor 9 on the same detection assembly 3 are arranged according to the up-down position.

[0030] Preferably, the detection assembly 3 is also arranged at a position close to the liquid inlet 18 of the experimental electrolytic cell 1; and the detection assembly 3 is also arranged at a position close to the electrolyte outlet 19 of the experimental electrolytic cell 1.

[0031] In the embodiment, the capillary tube 11 is connected with a peristaltic pump 20, and the peristaltic pump 20 and the temperature sensor 9 are connected with a controller 21.

[0032] Preferably, the peristaltic pump 20 is connected with an electrolyte collecting pool (not shown in the figure), and an electrolyte concentration detector is arranged on the electrolyte collecting pool, and the electrolyte concentration detector is connected with the controller 21.

[0033] In the embodiment, a plurality of detection assemblies 3 are arranged in the same electrolytic chamber of the experimental electrolytic cell 1, and the detection rods 10 and the capillary tubes 11 of the temperature sensors 9 of the plurality of detection assemblies 3 have different depths of insertion into the electrolytic cell.

[0034] The working principle of the embodiment is as follows:

[0035] When the experimental electrolytic cell 1 is working, the temperature of the electrolyte in the electrolytic cell at different positions is detected in real time by the temperature sensor 9 of the detection assembly 3; at the same time, the electrolyte in the electrolytic cell is extracted by the capillary tube 11 connected with the peristaltic pump 20 for sampling detection, so that the data of the electrolyte concentration at different positions in the electrolytic cell can be obtained in time. It should be noted that the peristaltic pump 20 should extract the electrolyte at a certain position in the electrolytic cell at a certain speed, and the electrolyte should not be extracted too fast to prevent the electrolyte at other positions from being extracted.

[0036] The beneficial effects of the embodiment are that the temperature of different areas near the surface of the electrode mesh 17 and near the surface of the ion exchange membrane and the temperature and concentration of the electrolyte at different positions can be monitored in real time, and the existing design structure of the electrolytic cell can be optimized.

[0037] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled persons in the technical field, some improvements and refinements can be made without departing from the technical principles of the present application, and these improvements and refinements should also be regarded as the protection range of the present application.

Claims

1. A test cell for detecting concentration and temperature gradients in an electrolyte, characterized by, The experimental electrolytic cell, the probe mounting hole opened in the side of the experimental electrolytic cell, the detection assembly mounted on the probe mounting hole, the positioning column positioned and fixed on the probe mounting hole, the through hole opened on the positioning column along the axial direction of the positioning column, the tapered hole arranged at the opening of the through hole, the rubber tapered plug mounted in the tapered hole, the pair of detection holes opened on the rubber tapered plug along the axial direction of the rubber tapered plug, the detection rod and the capillary tube of the temperature sensor corresponding to the pair of detection holes, and the pressing cap threaded on the outer circle of the positioning column for pressing the end face of the rubber tapered plug to form a sealed connection between the pair of detection holes of the rubber tapered plug and the detection rod and the capillary tube of the temperature sensor.

2. The experimental electrolytic cell for detecting the concentration and temperature gradient of electrolyte according to claim 1, wherein, The probe mounting hole on the experimental electrolytic cell is a threaded hole, the front end of the positioning column is provided with a section of external thread, and the positioning column is connected in threaded cooperation with the probe mounting hole through the external thread.

3. The experimental electrolytic cell for detecting the concentration and temperature gradient of electrolyte according to claim 2, wherein, The outer circle of the external thread at the front end of the positioning column is smaller than the outer circle of the positioning column, so that a stepped surface in contact with the side of the experimental electrolytic cell is formed between the outer circle of the positioning column and the outer circle of the external thread, an annular groove is opened on the stepped surface, and a sealing ring is mounted in the annular groove.

4. The experimental electrolytic cell for detecting the concentration and temperature gradient of electrolyte according to claim 1, wherein, The probe mounting hole on the experimental electrolytic cell is a cylindrical hole, a flange is arranged on the outer circle of the positioning column, a section of the outer circle at the front end of the positioning column is positioned in the probe mounting hole, and the flange is fixed on the side of the experimental electrolytic cell through screws.

5. The experimental electrolytic cell for detecting the concentration and temperature gradient of electrolyte according to claim 4, wherein, An annular groove is opened on one side of the flange of the positioning column in contact with the side of the experimental electrolytic cell, and a sealing ring is mounted in the annular groove.

6. The experimental electrolytic cell for detecting the concentration and temperature gradient of electrolyte according to claim 1, wherein, The rubber tapered plug is a ternary rubber tapered plug.

7. The experimental electrolytic cell for detecting the concentration and temperature gradient of electrolyte according to claim 1, wherein, The insertion direction of the detection rod and the capillary tube of the temperature sensor is parallel to the electrode mesh in the experimental electrolytic cell and located in the anode chamber or the cathode chamber of the experimental electrolytic cell, and the detection rod and the capillary tube of the temperature sensor on the same detection assembly are arranged in up-down positions.

8. The experimental electrolytic cell for detecting concentration and temperature gradient of electrolyte according to claim 1, wherein, The detection assembly is also arranged at a position close to the liquid inlet of the experimental electrolytic cell, and the detection assembly is also arranged at a position close to the liquid outlet of the electrolyte.

9. The experimental electrolytic cell for detecting concentration and temperature gradient of electrolyte according to claim 1, wherein, The capillary tube is connected with a peristaltic pump, and the peristaltic pump and the temperature sensor are connected with a controller respectively.

10. The experimental electrolytic cell for detecting concentration and temperature gradient of electrolyte according to claim 1, wherein, A plurality of detection assemblies are arranged in the same electrolytic chamber of the experimental electrolytic cell, and the detection rod and the capillary tube of the temperature sensor on the plurality of detection assemblies have different depths of insertion into the experimental electrolytic cell.

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