CN216484761U

CN216484761U - Split type electrochemical oxygen analyzer

Info

Publication number: CN216484761U
Application number: CN202122630836.8U
Authority: CN
Inventors: 张振金; 罗娟丽; 黄枭
Original assignee: Wuxi Kunlun Fuji Instrument Co ltd
Current assignee: Wuxi Kunlun Fuji Instrument Co ltd
Priority date: 2021-10-30
Filing date: 2021-10-30
Publication date: 2022-05-10
Anticipated expiration: 2031-10-30

Abstract

The utility model discloses a split type electrochemical oxygen analyzer, which comprises an oxygen sensor, wherein the oxygen sensor comprises a shell, electrolyte is arranged in the shell, a lead electrode is arranged in the electrolyte, a second lead is fixedly connected to the upper end of the lead electrode, a first cover body is fixedly connected to the lower end of the shell, a second cover body is fixedly connected between the first cover body and the shell, an O-shaped sealing ring is arranged on the outer surface of the second cover body, a diaphragm is arranged at the upper end of the O-shaped sealing ring, a gold electrode is arranged at the upper end of the diaphragm, a first lead is arranged at the upper end of the gold electrode, a converter is fixedly connected to one end, far away from the lead electrode, of the first lead, a converter is fixedly connected to one end, far away from a charged body, of the second lead, and a detection cell is arranged at the lower end of the first cover body. In the utility model, the detection pool, the oxygen sensor and the converter form an electrochemical oxygen analyzer, which is convenient for detecting the oxygen content of the oil refining device.

Description

Split type electrochemical oxygen analyzer

Technical Field

The utility model relates to the technical field of oxygen analyzers, in particular to a split type electrochemical oxygen analyzer.

Background

In petrochemical enterprises, alkylation reaction is used as an important synthesis means and is widely applied to a plurality of chemical production processes, and the alkylation production process comprises sulfuric acid method alkylation and hydrofluoric acid method alkylation according to different catalysts, and any alkylation is well-approved and has strong corrosion, so that the device can also put forward higher acid resistance requirements for the use of instruments.

The oxygen content measurement of general oil refining equipment is the preferred zirconia oxygen analyzer of using habitually because this kind of instrument simple to operate, low price, and the zirconia sensor in this kind of instrument is damaged easily, can be confirmed through the analysis and is relevant with the existence of strong corrosive gas, finds probably occasionally to have the gas cluster in the gas simultaneously, causes the flash explosion under the high temperature, damages the detector, provides a split type electrochemistry oxygen analyzer from this.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a split type electrochemical oxygen analyzer.

In order to achieve the purpose, the utility model adopts the following technical scheme: a split type electrochemical oxygen analyzer comprises an oxygen sensor, wherein the oxygen sensor comprises a shell, a bottom cover is fixedly connected to the upper end of the shell, electrolyte is arranged inside the shell, a lead electrode is arranged inside the electrolyte, a second lead wire is fixedly connected to the upper end of the lead electrode, a first cover body is fixedly connected to the lower end of the shell, a second cover body is fixedly connected between the first cover body and the shell, an O-shaped sealing ring is arranged on the outer surface of the second cover body, a diaphragm is arranged at the upper end of the O-shaped sealing ring, the edge of the diaphragm is fixedly connected with the shell, a gold electrode is arranged at the upper end of the diaphragm, an electrified body is arranged at the upper end of the gold electrode, a first lead wire is fixedly connected to the upper end face of the electrified body, and a third lead wire is fixedly connected to the outer surfaces of the first lead wire and the second lead wire, the outer surface of the third lead is fixedly connected with a temperature compensation thermistor, and a correction resistor is arranged on the right side of the temperature compensation thermistor;

one end of the first lead wire, which is far away from the lead electrode, is fixedly connected with a converter, one end of the second lead wire, which is far away from the electrified body, is fixedly connected with the converter, the bottom end of the converter is fixedly connected with a first mounting plate, and the upper end of the converter is fixedly connected with a control panel;

the lower extreme of first lid is provided with the detection pond, the detection pond includes the cell body, the right-hand member of cell body is provided with the connection pad, the outer fixed surface of cell body is connected with the connecting plate, the left end fixedly connected with second mounting panel of connecting plate.

As a further description of the above technical solution:

the left end fixedly connected with second connector of cell body, the surface fixed connection of second connector has the nozzle sample thief.

As a further description of the above technical solution:

the outer surface of the first mounting plate is fixedly connected with a first connecting head.

As a further description of the above technical solution:

the two side ends of the first mounting plate are fixedly connected with fixing lugs, and positioning holes are formed in the upper end faces of the fixing lugs.

As a further description of the above technical solution:

the both ends of correcting resistor all fixedly connected with third wire, the outside of correcting resistor is provided with the casing.

As a further description of the above technical solution:

the upper end fixedly connected with casing of lead electrode, the left side of lead electrode is provided with the correction resistance.

As a further description of the above technical solution:

the lower end of the charged body is fixedly connected with a gold electrode, and the side end of the gold electrode is fixedly connected with a shell.

As a further description of the above technical solution:

and a shell is arranged on the outer surface of the O-shaped sealing ring.

The utility model has the following beneficial effects:

1. in the utility model, the detection cell, the oxygen sensor and the converter form an electrochemical oxygen analyzer, and the oxygen content of the oil refining device can be rapidly detected through the oxygen sensor and the converter.

2. The oxygen sensor uses the oxygen formed by gold electrode as positive electrode, uses lead electrode as negative electrode, uses acid electrolyte to form oxygen-lead electrode structure, and uses the gold electrode as positive electrode and diaphragm made of non-porous fluororesin film to connect them into one body, and uses the oxygen diffused by said diaphragm in small quantity to make electrochemical reduction on the gold electrode so as to make the electrochemical oxygen analyzer can detect oxygen content of said device under the working condition of corrosive atmosphere.

3. In the present invention, a thermistor for temperature compensation and a correction resistor are connected between a positive electrode and a negative electrode, a current generated by oxygen reduction is converted into a voltage by these resistors, the amount of oxygen introduced through a diaphragm is proportional to the oxygen concentration of a gas in a test environment in contact with the diaphragm, that is, proportional to the oxygen concentration of a current value flowing between the positive electrode and the negative electrode, and the oxygen sensor is not easily damaged by the thermistor for temperature compensation and the correction resistor.

Drawings

FIG. 1 is a schematic structural diagram of a split electrochemical oxygen analyzer according to the present invention;

FIG. 2 is a schematic structural diagram of an oxygen sensor of a split electrochemical oxygen analyzer according to the present invention;

FIG. 3 is a cross-sectional view of an oxygen sensor of a split electrochemical oxygen analyzer in accordance with the present invention;

FIG. 4 is a top view of a transducer of a split electrochemical oxygen analyzer in accordance with the present invention;

FIG. 5 is a cross-sectional view of a measuring cell of a split electrochemical oxygen analyzer in accordance with the present invention;

FIG. 6 is a side view of a measuring cell of a split electrochemical oxygen analyzer according to the present invention.

Illustration of the drawings:

1. a bottom cover; 2. correcting the resistance; 3. an electrolyte; 4. a lead electrode; 5. a first cover body; 6. a second cover body; 7. an O-shaped sealing ring; 8. a membrane; 9. a gold electrode; 10. a charged body; 11. a temperature compensated thermistor; 12. a housing; 13. a first conductive line; 14. a second conductive line; 15. a connecting disc; 16. an oxygen sensor; 17. a first connector; 18. fixing the ear; 19. a first mounting plate; 20. a converter; 21. a control panel; 22. a second connector; 23. a tank body; 24. a second mounting plate; 25. a connecting plate; 26. and a third conductive line.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, one embodiment of the present invention is provided: a split type electrochemical oxygen analyzer comprises an oxygen sensor 16, the oxygen sensor 16 takes oxygen formed by a gold electrode 9 as a positive electrode, a lead electrode 4 as a negative electrode, the oxygen sensor 16 comprises a shell 12, the shell 12 is a main structure of the oxygen sensor 16, the upper end of the shell 12 is fixedly connected with a bottom cover 1, electrolyte 3 is arranged in the shell 12, the electrolyte 3 can be acid electrolyte, the electrolyte 3 can also be alkaline electrolyte, the inside of the electrolyte 3 is provided with the lead electrode 4, the upper end of the lead electrode 4 is fixedly connected with a second lead wire 14, the upper end of the lead electrode 4 is fixedly connected with the shell 12, the left side of the lead electrode 4 is provided with a correction resistor 2, the lower end of the shell 12 is fixedly connected with a first cover body 5, a second cover body 6 is fixedly connected between the first cover body 5 and the shell 12, and the outer surface of the second cover body 6 is provided with an O-shaped sealing ring 7, the upper end of the O-shaped sealing ring 7 is provided with a diaphragm 8, the outer surface of the O-shaped sealing ring 7 is provided with a shell 12, the edge of the diaphragm 8 is fixedly connected with the shell 12, the upper end of the diaphragm 8 is provided with a gold electrode 9, the gold electrode 9 as the anode is connected with the membrane 8 made of non-porous fluororesin film into a whole, oxygen diffused in a small amount through the diaphragm 8 is electrochemically reduced on the gold electrode 9, so that the electrochemical oxygen analyzer can detect the oxygen content of the device under the working condition of acid atmosphere, the upper end of the gold electrode 9 is provided with a charged body 10, the upper end surface of the charged body 10 is fixedly connected with a first lead 13, the lower end of the charged body 10 is fixedly connected with the gold electrode 9, the side end of the gold electrode 9 is fixedly connected with the shell 12, the outer surfaces of the first lead 13 and a second lead 14 are fixedly connected with a third lead 26, the outer surface of the third lead 26 is fixedly connected with a temperature compensation thermistor 11, the right side of the temperature compensation thermistor 11 is provided with a correction resistor 2, both ends of the correction resistor 2 are fixedly connected with third conducting wires 26, the outer side of the correction resistor 2 is provided with a shell 12, current generated by oxygen reduction is converted into voltage through the temperature compensation thermistor 11 and the correction resistor 2, and the amount of oxygen entering through the diaphragm 8 is proportional to the concentration of oxygen in gas in a test environment contacting the diaphragm 8;

the end of the first lead 13 far away from the lead electrode 4 is fixedly connected with a converter 20, the end of the second lead 14 far away from the charged body 10 is fixedly connected with the converter 20, the converter 20 converts the detection result of the oxygen sensor 16 into an electric signal, and is convenient for direct observation of workers, the bottom end of the converter 20 is fixedly connected with a first mounting plate 19, the converter 20 is fixed at a designated position by the first mounting plate 19 through a fixing lug 18, the outer surface of the first mounting plate 19 is fixedly connected with a first connecting head 17, both side ends of the first mounting plate 19 are fixedly connected with fixing lugs 18, the upper end surface of each fixing lug 18 is provided with a positioning hole, and the upper end of the converter 20 is fixedly connected with a control panel 21;

the lower extreme of first lid 5 is provided with the detection pond, the detection pond includes cell body 23, cell body 23 is used for holding and waits to detect the material, the right-hand member of cell body 23 is provided with connection pad 15, the external fixed surface of cell body 23 is connected with connecting plate 25, the left end fixedly connected with second mounting panel 24 of connecting plate 25, the left end fixedly connected with second connector 22 of cell body 23, the external fixed surface of second connector 22 is connected with the nozzle sample thief, the nozzle sample thief can gather and the material of blowout collection.

The working principle is as follows: according to the utility model, a material to be detected is collected by a nozzle sampler and sent to a cell body 23, the cell body 23 is connected with an oxygen sensor 16 for oxygen content detection, the main structure of the oxygen sensor 16 is a shell 12, an electrolyte 3 is arranged in the shell 12, the electrolyte 3 can be an acid electrolyte, the electrolyte 3 can also be an alkaline electrolyte, a lead electrode 4 is arranged in the electrolyte 3, a gold electrode 9 is arranged through the shell 12 and a cover body, the gold electrode 9 serving as an anode is connected with a diaphragm 8 made of a non-porous fluororesin film into a whole, oxygen slightly diffused by the diaphragm 8 is electrochemically reduced on the gold electrode 9, and the electrochemical oxygen analyzer can detect the oxygen content of the device under the working condition of corrosive atmosphere by matching with a temperature compensation thermistor 11 and a correction resistor 2.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. A split electrochemical oxygen analyzer comprising an oxygen sensor (16), characterized in that: the oxygen sensor (16) comprises a shell (12), the upper end of the shell (12) is fixedly connected with a bottom cover (1), the inside of the shell (12) is provided with an electrolyte (3), the inside of the electrolyte (3) is provided with a lead electrode (4), the upper end of the lead electrode (4) is fixedly connected with a second lead (14), the lower end of the shell (12) is fixedly connected with a first cover body (5), a second cover body (6) is fixedly connected between the first cover body (5) and the shell (12), the outer surface of the second cover body (6) is provided with an O-shaped sealing ring (7), the upper end of the O-shaped sealing ring (7) is provided with a diaphragm (8), the edge of the diaphragm (8) is fixedly connected with the shell (12), the upper end of the diaphragm (8) is provided with a gold electrode (9), the upper end of the gold electrode (9) is provided with an electrified body (10), the upper end face of the charged body (10) is fixedly connected with a first lead (13), the outer surfaces of the first lead (13) and the second lead (14) are fixedly connected with a third lead (26), the outer surface of the third lead (26) is fixedly connected with a temperature compensation thermistor (11), and the right side of the temperature compensation thermistor (11) is provided with a correction resistor (2);

a converter (20) is fixedly connected to one end, far away from the lead electrode (4), of the first lead (13), a converter (20) is fixedly connected to one end, far away from the charged body (10), of the second lead (14), a first mounting plate (19) is fixedly connected to the bottom end of the converter (20), and a control panel (21) is fixedly connected to the upper end of the converter (20);

the lower extreme of first lid (5) is provided with the detection pond, the detection pond includes cell body (23), the right-hand member of cell body (23) is provided with connection pad (15), the external fixed surface of cell body (23) is connected with connecting plate (25), the left end fixedly connected with second mounting panel (24) of connecting plate (25).

2. The split electrochemical oxygen analyzer of claim 1, wherein: the left end fixedly connected with second connector (22) of cell body (23), the external fixed surface of second connector (22) is connected with the nozzle sample thief.

3. The split electrochemical oxygen analyzer of claim 1, wherein: the outer surface of the first mounting plate (19) is fixedly connected with a first connecting head (17).

4. The split electrochemical oxygen analyzer of claim 1, wherein: the two side ends of the first mounting plate (19) are fixedly connected with fixing lugs (18), and positioning holes are formed in the upper end faces of the fixing lugs (18).

5. The split electrochemical oxygen analyzer of claim 1, wherein: the both ends of correcting resistor (2) are equal fixedly connected with third wire (26), the outside of correcting resistor (2) is provided with casing (12).

6. The split electrochemical oxygen analyzer of claim 1, wherein: the upper end fixedly connected with casing (12) of lead electrode (4), the left side of lead electrode (4) is provided with correction resistor (2).

7. The split electrochemical oxygen analyzer of claim 1, wherein: the lower end of the charged body (10) is fixedly connected with a gold electrode (9), and the side end of the gold electrode (9) is fixedly connected with a shell (12).

8. The split electrochemical oxygen analyzer of claim 1, wherein: and a shell (12) is arranged on the outer surface of the O-shaped sealing ring (7).