CN213843101U

CN213843101U - Tubular online pH electrode with standard interface

Info

Publication number: CN213843101U
Application number: CN202022788016.7U
Authority: CN
Inventors: 何海东; 许文强; 吴增伟
Original assignee: Shanghai Leici Sensor Technology Co ltd
Current assignee: Shanghai Leici Sensor Technology Co ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-07-30
Anticipated expiration: 2030-11-26

Abstract

A tubular in-line pH electrode with a standard interface comprising: tubular shell and pH electrode mechanism, pH electrode mechanism inlays with tubular shell and is connected. Wherein, pH electrode mechanism includes: the device comprises an ion field effect transistor, a silver-silver chloride reference electrode, a solid gel electrolyte, a porous ceramic sand core salt bridge and a lead. Compared with the prior art, the utility model, through addding the online pH electrode of tubular, realize can directly adorn on the pipeline, need not to increase in addition the circulation pond, but easy to assemble effectively saves equipment space.

Description

Tubular online pH electrode with standard interface

Technical Field

The utility model relates to an online pH electrode, concretely relates to tubular online pH electrode that possesses standard interface.

Background

At present, the continuous and uninterrupted determination of the pH value of a water sample in a pipeline usually uses an online pH electrode. On-line pH electrodes are usually bulky to ensure electrode life, and need to be installed in a special flow cell to be used for measurement of pipeline water samples, for example: tap water. The flow cell is inconvenient to install and occupies a large space, and is not beneficial to miniaturization and convenience of the online pH monitoring equipment.

Therefore, a tubular online pH electrode is designed, has the functions of the pH electrode and a flow cell, can be used independently, and is convenient to install and new in market demand.

In order to solve the above problems, we have made a series of improvements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an online pH electrode of tubular that possesses standard interface to overcome the above-mentioned shortcoming and not enough that prior art exists.

A tubular in-line pH electrode with a standard interface comprising: the pH electrode mechanism is connected with the tubular shell in an embedded manner;

wherein the pH electrode mechanism comprises: the device comprises an ionic field effect transistor, a silver-silver chloride reference electrode, solid gel electrolyte, a porous ceramic sand core salt bridge and a lead, wherein the ionic field effect transistor is connected with the inner wall of a tubular shell in an embedded mode, the silver-silver chloride reference electrode and the solid gel electrolyte are arranged in a cavity of the inner wall of the tubular shell, the porous ceramic sand core salt bridge is connected with the silver-silver chloride reference electrode and the solid gel electrolyte, the lead is connected with leads of the ionic field effect transistor and the silver-silver chloride reference electrode, and the lead is connected with a pH instrument.

Furthermore, threads are arranged at two ends of the tubular shell and are standard British threads. The utility model has the advantages that:

compared with the prior art, the utility model, through addding the online pH electrode of tubular, realize can directly adorn on the pipeline, need not to increase in addition the circulation pond, but easy to assemble effectively saves equipment space.

Description of the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Reference numerals:

a tubular housing 100 and threads 110.

A pH electrode mechanism 200, an ionic field effect transistor 210, a silver-silver chloride reference electrode 220, a solid gel electrolyte 230, a porous ceramic sand core salt bridge 240 and a lead 250.

Detailed Description

The present invention will be further described with reference to the following examples. It should be understood that the following examples are illustrative only and are not intended to limit the scope of the present invention.

Example 1

Fig. 1 is a schematic structural diagram of the present invention.

As shown in fig. 1, a tubular online pH electrode with a standard interface comprises: the pH electrode mechanism 200 is connected with the tubular shell 100 in an embedded manner;

wherein, pH electrode mechanism 200 includes: the ion field effect transistor 210, the silver-silver chloride reference electrode 220, the solid gel electrolyte 230, the porous ceramic sand core salt bridge 240 and the lead 250, wherein the ion field effect transistor 210 is connected with the inner wall of the tubular shell 100 in an embedded mode, the silver-silver chloride reference electrode 220 and the solid gel electrolyte 230 are arranged in a cavity of the inner wall of the tubular shell 100, the porous ceramic sand core salt bridge 240 is connected with the silver-silver chloride reference electrode 220 and the solid gel electrolyte 230, the lead 250 is connected with the ion field effect transistor 210 and the lead of the silver-silver chloride reference electrode 220, and the lead 250 is connected with a pH instrument.

Threads 110 are provided on both ends of the tubular housing 100, the threads 110 being standard english threads.

The working principle of the utility model is that the ion field effect transistor 210 is embedded in the inner wall of the tubular shell 100 and can directly contact with the water sample in the tube; the silver-silver chloride reference electrode 220 and the solid gel electrolyte 230 are positioned in the cavity of the inner wall of the tubular shell 100 and are in contact with a water sample in the tube through the porous ceramic sand core salt bridge 240; the leads of the ion field effect transistor 210 and the silver-silver chloride reference electrode 220 are combined and led out through a lead wire 250, the ion field effect transistor can be connected with an online pH instrument, and the thread 110 on the tubular shell 100 adopts standard British threads which can be selected according to actual requirements.

The utility model discloses a sensitive ball bubble of pH that ionic field effect transistor used commonly on replacing the market can be inlayed at 100 inner walls of tubular shell, needn't lead to unable built-in the pipeline because of the sensitive ball bubble of pH is longer and be difficult to the miniaturation, and reference electrode utilizes the cavity preparation around tubular shell inner wall, under the prerequisite of guaranteeing the sufficient assurance electrode life-span of inner wall electrode liquid capacity, does not additionally increase the electrode volume. Make electrode global design similar a standard size's pipeline, possess the function of pH electrode and flow-through cell simultaneously, and both ends have the screw thread 110 of standard english system, and the installation of being convenient for can directly adorn on the pipeline, need not to increase in addition the flow-through cell, can easy to assemble and effectively save equipment space.

The above description has been made of the embodiments of the present invention, but the present invention is not limited thereto, and various changes may be made without departing from the spirit of the present invention.

Claims

1. A tubular on-line pH electrode with a standard interface is characterized by comprising: the pH electrode device comprises a tubular shell (100) and a pH electrode mechanism (200), wherein the pH electrode mechanism (200) is connected with the tubular shell (100) in an embedded manner;

wherein the pH electrode mechanism (200) comprises: the device comprises an ion field effect transistor (210), a silver-silver chloride reference electrode (220), solid gel electrolyte (230), a porous ceramic sand core salt bridge (240) and a lead (250), wherein the ion field effect transistor (210) is connected with the inner wall of a tubular shell (100) in an embedded mode, the silver-silver chloride reference electrode (220) and the solid gel electrolyte (230) are arranged in a cavity of the inner wall of the tubular shell (100), the porous ceramic sand core salt bridge (240) is connected with the silver-silver chloride reference electrode (220) and the solid gel electrolyte (230), the lead (250) is connected with leads of the ion field effect transistor (210) and the silver-silver chloride reference electrode (220), and the lead (250) is connected with a pH instrument.

2. The tubular in-line pH electrode with a standard interface of claim 1, wherein: set up screw thread (110) on tubular shell (100) both ends, screw thread (110) are standard english system screw thread.