CN221326408U - Oxygen analyzer - Google Patents
Oxygen analyzer Download PDFInfo
- Publication number
- CN221326408U CN221326408U CN202323117649.5U CN202323117649U CN221326408U CN 221326408 U CN221326408 U CN 221326408U CN 202323117649 U CN202323117649 U CN 202323117649U CN 221326408 U CN221326408 U CN 221326408U
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- Prior art keywords
- pipe
- detection
- oxygen analyzer
- oxygen
- air outlet
- Prior art date
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- 239000001301 oxygen Substances 0.000 title claims abstract description 65
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 65
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 61
- 238000001514 detection method Methods 0.000 claims abstract description 51
- 239000007789 gas Substances 0.000 claims abstract description 14
- 239000003792 electrolyte Substances 0.000 claims abstract description 10
- 239000004973 liquid crystal related substance Substances 0.000 claims description 5
- 229910052709 silver Inorganic materials 0.000 claims description 5
- 239000004332 silver Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000005192 partition Methods 0.000 abstract description 7
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000004458 analytical method Methods 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 150000002926 oxygen Chemical class 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- LWUVWAREOOAHDW-UHFFFAOYSA-N lead silver Chemical compound [Ag].[Pb] LWUVWAREOOAHDW-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses an oxygen analyzer, which relates to the technical field of gas oxygen content measurement, and comprises a shell, wherein a detection assembly and a pipeline assembly are arranged in the shell, the detection assembly comprises a detection tank, a partition plate is arranged in the detection tank, the detection tank is divided into an upper part and a lower part by the partition plate, a negative electrode block is arranged on an inner side arm of a lower part of the detection tank, a positive electrode block is arranged on an inner side bottom arm of the lower part of the detection tank, electrolyte is filled in the lower part of the detection tank, and a first resistor and a thermistor are arranged on the upper part of the detection tank. The utility model relates to an oxygen analyzer, and the analysis result of oxygen concentration is more accurate.
Description
Technical Field
The utility model relates to the technical field of gas oxygen content measurement, in particular to an oxygen analyzer.
Background
The oxygen content online analysis device is needed for the oxygen content of high-temperature sintering furnace protective gas such as air separation nitrogen production, lithium batteries, storage, chemical processes, magnetic materials and the like, electronic industry protective gas and glass and building material industries, for example, the existing flue gas oxygen content measurement device is used for pumping flue gas away from a flue through an air pump, remotely transmitting the flue gas to a dryer through a heating pipeline, measuring dry oxygen in the flue gas after the moisture of the flue gas is removed, and has complex integral structure and pipeline, and easy occurrence of moisture condensation loss and measurement error.
Disclosure of utility model
In view of the above, an object of the present utility model is to provide an oxygen analyzer for solving the problem of large measurement error of the conventional oxygen analyzer.
Based on the above object, the utility model provides an oxygen analyzer, which comprises a shell, wherein a detection assembly and a pipeline assembly are arranged in the shell, the detection assembly comprises a detection tank, a partition board is arranged in the detection tank, the detection tank is divided into an upper part and a lower part by the partition board, a negative electrode block is arranged on an inner side arm of a lower part of the detection tank, a positive electrode block is arranged on an inner side bottom arm of the lower part of the detection tank, electrolyte is filled in the lower part of the detection tank, and a first resistor and a thermistor are arranged on the upper part of the detection tank.
Further, the negative electrode block is silver, the positive electrode block is lead, and a diaphragm is arranged between the positive electrode block and an inner side bottom arm of the lower part of the detection tank.
Further, a liquid crystal display screen and a gas flowmeter are embedded in one side surface of the shell.
Further, the pipeline assembly comprises an air inlet pipe and an air outlet pipe which are embedded at the other side of the shell, one end of the air inlet pipe is connected with an air inlet of the air flowmeter, an air outlet of the air flowmeter is connected with a second pipe, the end part of the air outlet pipe and the end part of the second pipe are connected with a four-way valve together, the four-way valve is connected with a third pipe and a fourth pipe, and the third pipe and the fourth pipe are in through connection with the lower part of the detection tank.
Further, a switch and a connecting terminal are embedded in the surface of the other side of the shell.
Further, the four-way valve comprises a valve shell and a valve core movably arranged in the valve shell, the valve core is connected with a rotating handle, a rotating through hole is formed in the other side of the shell, and the rotating handle is located outside the rotating through hole.
Further, when the rotating handle is at the initial position, the second pipe is communicated with the air outlet pipe, the rotating handle rotates clockwise for an angle, the second pipe is communicated with the third pipe, and the fourth pipe is communicated with the air outlet pipe.
Compared with the prior art, the utility model has the following beneficial effects:
In the present utility model, the oxygen sensor is essentially an oxygen cell, the cathode is an oxygen electrode and the anode is a suitable metal, because oxygen needs to be discharged by means of the metal, the cathode of the oxygen cell is usually silver, the anode is lead, and the electrolyte is not overflowed by separating oxygen from oxygen by a coating film which can enter the sensor through the coating film, at the silver-lead electrode, oxygen molecules generate chemical reaction, and the chemical reaction process generates measurable current by collecting charges, and the reaction formula is as follows: and (3) cathode: o 2 + 4H+ + 4e - →2H2 O; anode: 2pb+2h 2O →2PbO + 4H+ +4e-; total reaction of the cell: o 2 + 2Pb→2 PbO; the film-covered primary cell type oxygen sensor is a current type measuring device, which can be described by a diffusion current model, and the formula is as follows: i= nFAD/l·c: n is the number of the reaction electrons; f is Faraday constant; a is the surface area of the cathode; d is the oxygen diffusion coefficient; l is the distance from the outer surface of the breathable film to the surface of the cathode; c is the dissolved oxygen concentration; when the materials and the structure of the battery are determined, at a certain temperature, the above formula can be simplified as follows: i=k·c; from the above equation, the current output by the sensor is proportional to the oxygen concentration, and is a linear element, so that the analysis of the oxygen concentration data is more accurate.
Drawings
FIG. 1 is a schematic view showing the overall structure of an oxygen analyzer according to the present utility model;
FIG. 2 is a schematic view of an isometric structure of an oxygen analyzer according to the present utility model;
FIG. 3 is a schematic view showing the internal structure of the oxygen analyzer of the present utility model;
FIG. 4 is a schematic illustration of a front cross-sectional structure of a detection assembly of the present utility model;
FIG. 5 is a schematic diagram showing a front cross-sectional structure of a four-way valve in an initial state of the utility model;
Fig. 6 is a schematic diagram of the connection of the detection assembly and the pipe assembly with the forward section structure of the four-way valve in the detection state of the present utility model.
In the figure: 1. a housing; 2. a detection assembly; 3. a conduit assembly; 4. a liquid crystal display; 5. a gas flow meter; 6. a switch; 7. a connection terminal; 201. a detection tank; 202. a partition plate; 203. a negative electrode block; 204. a positive electrode block; 205. a first resistor; 206. a thermistor; 301. an air inlet pipe; 302. an air outlet pipe; 303. a second tube; 304. a four-way valve; 305. a third tube; 306. a fourth pipe; 307. a diaphragm; 3041. a valve housing; 3042. a valve core; 3043. a rotating handle.
Detailed Description
The present utility model will be further described in detail with reference to specific embodiments in order to make the objects, technical solutions and advantages of the present utility model more apparent.
It is to be noted that unless otherwise defined, technical or scientific terms used herein should be taken in a general sense as understood by one of ordinary skill in the art to which the present utility model belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
Referring to fig. 1 to 6, fig. 1 is a schematic diagram showing an overall structure of an oxygen analyzer according to the present utility model; FIG. 2 is a schematic view of an isometric structure of an oxygen analyzer according to the present utility model; FIG. 3 is a schematic view showing the internal structure of the oxygen analyzer of the present utility model; FIG. 4 is a schematic illustration of a front cross-sectional structure of a detection assembly of the present utility model; FIG. 5 is a schematic diagram of a front cross-sectional structure of a four-way valve in an initial state of the present utility model; fig. 6 is a schematic diagram of the connection of the detection assembly and the pipe assembly with the forward section structure of the four-way valve in the detection state of the present utility model.
The oxygen analyzer comprises a shell 1, wherein a detection assembly 2 and a pipeline assembly 3 are arranged in the shell 1, the detection assembly 2 comprises a detection tank 201, a partition board 202 is arranged in the detection tank 201, the detection tank 201 is divided into an upper part and a lower part by the partition board 202, a negative electrode block 203 is arranged on an inner side arm of a lower part of the detection tank 201, a positive electrode block 204 is arranged on an inner side bottom arm of the lower part of the detection tank 201, electrolyte is filled in the lower part of the detection tank 201, and a first resistor 205 and a thermistor 206 are arranged on the upper part of the detection tank 201; the negative electrode block 203 is silver, the positive electrode block 204 is lead, and a diaphragm 307 is arranged between the positive electrode block 204 and an inner bottom arm of the lower part of the detection tank 201.
In practical use, the positive electrode block 204 and the negative electrode block are respectively connected to two wires, the first resistor 205 and the thermistor 206 are connected in series between the two wires, the oxygen sensor is essentially an oxygen cell, the cathode is an oxygen electrode, the anode is a proper metal, because oxygen needs to be discharged by means of the metal, the cathode of the oxygen cell is silver, the anode is lead, an internal charging electrolyte, and the oxygen can be separated from the oxygen by a coating film and enter the sensor through the coating film without overflowing the electrolyte, at the silver-lead electrode, oxygen molecules generate chemical reaction, and a measurable current is generated in the chemical reaction process due to charge collection, as shown in fig. 4, the reaction formula is as follows: and (3) cathode: o 2 + 4H+ + 4e - →2H2 O; anode: 2pb+2h 2O →2PbO + 4H+ +4e-; total reaction of the cell: o 2 + 2Pb→2 PbO; the film-covered primary cell type oxygen sensor is a current type measuring device, which can be described by a diffusion current model, and the formula is as follows: i= nFAD/l·c: n is the number of the reaction electrons; f is Faraday constant; a is the surface area of the cathode; d is the oxygen diffusion coefficient; l is the distance from the outer surface of the breathable film to the surface of the cathode; c is the dissolved oxygen concentration; when the materials and the structure of the battery are determined, at a certain temperature, the above formula can be simplified as follows: i=k·c; as can be seen from the above equation, the current output by the sensor is proportional to the oxygen concentration and is a linear element.
Further, a liquid crystal display 4 and a gas flowmeter 5 are embedded in one side surface of the housing 1.
The liquid crystal display 4 is mainly used for displaying the oxygen concentration, a control system for converting an electric signal into the oxygen concentration and displaying the oxygen concentration is common knowledge, and the details are not repeated herein, and the gas flow meter 5 is mainly used for reading the gas flow;
Further, the pipe assembly 3 includes an air inlet pipe 301 and an air outlet pipe 302 embedded on the other side of the housing 1, one end of the air inlet pipe 301 is connected with an air inlet of the air flowmeter 5, an air outlet of the air flowmeter 5 is connected with a second pipe 303, an end part of the air outlet pipe 302 and an end part of the second pipe 303 are connected together with a four-way valve 304, the four-way valve 304 is connected with a third pipe 305 and a fourth pipe 306, and the third pipe 305 and the fourth pipe 306 are in through connection with the lower part of the detection tank 201.
Further, the switch 6 and the connection terminal 7 are embedded on the surface of the other side of the housing 1, the switch 6 is a main power switch of the device, whether the device operates or not is controlled, the connection terminal 7 is used for transmitting data, and the data transmission of the connection terminal 7 is common knowledge.
Further, the four-way valve 304 includes a valve housing 3041 and a valve core 3042 movably disposed in the valve housing 3041, the valve core 3042 is connected to a rotating handle 3043, a rotating through hole is formed in the other side of the housing 1, the rotating handle 3043 is located outside the rotating through hole, when the rotating handle 3043 is at an initial position, the second pipe 303 is communicated with the air outlet pipe 302, the rotating handle 3043 rotates 90 ° clockwise, the second pipe 303 is communicated with the third pipe 305, and the fourth pipe 306 is communicated with the air outlet pipe 302.
In summary, in practical use, before introducing the sample gas, it is ensured that the four-way valve 304 points to the emptying position, i.e. when the rotating handle 3043 is at the initial position, the second pipe 303 is communicated with the air outlet pipe 302, after the pressure and the flow are regulated, the pressure and the flow are purged for 3-5 minutes, the direction can be pointed to the detection, i.e. the rotating handle 3043 rotates 90 degrees clockwise, the second pipe 303 is communicated with the third pipe 305, the fourth pipe 306 is communicated with the air outlet pipe 302, the electrolyte is sealed in the sensor through a gas permeable membrane, such as the pressure big gas permeable membrane will rupture, resulting in liquid leakage, the sensor is permanently damaged, the pressure cannot be increased or the flow cannot be increased in the detection, the sample gas is purged for 1-3 minutes before use, the four-way valve on the meter is screwed onto the detection gear, and after the value is stable, the display value is the current measurement true value; when the detection is stopped, the four-way valve is screwed onto the emptying gear to isolate the sensor from air, and then the air source supply is stopped; if a little air is introduced into the micro oxygen sensor carelessly, high-purity nitrogen can be introduced into the micro oxygen sensor for purging, and the micro oxygen sensor is stopped for preservation when the oxygen content is reduced to a true value. If the instrument is not used for a long time, high-purity nitrogen is introduced once every three to four months to purge the sensor, so that the inside of the sensor is ensured to be under the condition of relatively low oxygen content; the electrochemical sensor is characterized in that oxygen and electrolyte in the sensor are subjected to oxidation-reduction reaction, and the more the oxygen is, the faster the electrolyte is consumed, and the service life is shorter; specifically the detection of the oxygen concentration is accomplished by the detection assembly 2,
Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to suggest that the scope of the utility model (including the claims) is limited to these examples; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the utility model, the steps may be implemented in any order and there are many other variations of the different aspects of the utility model as described above, which are not provided in detail for the sake of brevity.
The present utility model is intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, improvement, etc. of the present utility model should be included in the scope of the present utility model.
Claims (7)
1. Oxygen analyzer, its characterized in that: including casing (1), casing (1) inside is equipped with detection subassembly (2) and pipeline subassembly (3), detection subassembly (2) are including detecting jar (201), detect jar (201) inside is equipped with baffle (202), baffle (202) will detect jar (201) divide into upper and lower two parts, the inside side arm of detection jar (201) lower part is equipped with negative pole piece (203), the inside side bottom arm of detection jar (201) lower part is equipped with positive pole piece (204), detect jar (201) lower part and fill has electrolyte, detect jar (201) upper portion and be equipped with first resistor (205) and thermistor (206).
2. The oxygen analyzer of claim 1, wherein: the negative electrode block (203) is silver, the positive electrode block (204) is lead, and a diaphragm (307) is arranged between the positive electrode block (204) and an inner side bottom arm of the lower part of the detection tank (201).
3. The oxygen analyzer of claim 2, wherein: a liquid crystal display screen (4) and a gas flowmeter (5) are embedded in one side surface of the shell (1).
4. The oxygen analyzer of claim 3, wherein: the pipeline assembly (3) comprises an air inlet pipe (301) and an air outlet pipe (302) which are embedded in the other side of the shell (1), one end of the air inlet pipe (301) is connected with an air inlet of the air flowmeter (5), an air outlet of the air flowmeter (5) is connected with a second pipe (303), the end part of the air outlet pipe (302) and the end part of the second pipe (303) are connected with a four-way valve (304) together, the four-way valve (304) is connected with a third pipe (305) and a fourth pipe (306), and the third pipe (305) and the fourth pipe (306) are connected with the lower part of the detection tank (201) in a penetrating mode.
5. The oxygen analyzer of claim 4, wherein: the other side surface of the shell (1) is embedded with a switch (6) and a connecting terminal (7).
6. The oxygen analyzer of claim 5, wherein: the four-way valve (304) comprises a valve casing (3041) and a valve core (3042) movably arranged in the valve casing (3041), the valve core (3042) is connected with a rotating handle (3043), a rotating through hole is formed in the other side of the casing (1), and the rotating handle (3043) is located outside the rotating through hole.
7. The oxygen analyzer of claim 6, wherein: when the rotating handle (3043) is at the initial position, the second pipe (303) is communicated with the air outlet pipe (302), the rotating handle (3043) rotates 90 degrees clockwise, the second pipe (303) is communicated with the third pipe (305), and the fourth pipe (306) is communicated with the air outlet pipe (302).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323117649.5U CN221326408U (en) | 2023-11-20 | 2023-11-20 | Oxygen analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323117649.5U CN221326408U (en) | 2023-11-20 | 2023-11-20 | Oxygen analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221326408U true CN221326408U (en) | 2024-07-12 |
Family
ID=91796419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323117649.5U Active CN221326408U (en) | 2023-11-20 | 2023-11-20 | Oxygen analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221326408U (en) |
-
2023
- 2023-11-20 CN CN202323117649.5U patent/CN221326408U/en active Active
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