Aussi gas analyzer

Abstract

The utility model relates to the technical field of gas analysis, in particular to an austenitic gas analyzer which comprises a frame plate and a cross beam pipe, the part, located in the frame plate, of the cross beam pipe is connected with a plurality of absorption communicating pipes, the bottoms of the absorption communicating pipes are detachably connected with absorption bottles, and a measuring tube is arranged at the position, located on the right side of the absorption bottles, in the frame plate. A leveling bottle is installed on the top face of the sliding plate, and a conveying pipe is connected between the bottom end of the measuring tube and the bottom end of the leveling bottle. Under the condition that the bottom end of the measuring tube is flush with the bottom end of the leveling bottle, the liquid level height in the leveling bottle is changed through the air pump, so that the gas content in the transmission tube is changed, the liquid level height in the measuring tube is changed until the liquid level height returns to the original position, and compared with a mode of manually changing the height of the leveling bottle and manually pressing the leveling bottle, the liquid level adjusting device is better in control and convenient to operate. And the height change quantity and the pump quantity of the air pump are more accurate, so that the liquid level adjustment of the measuring tube is more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of gas analysis, in particular to an Ostwald gas analyzer. Background Art

[0002] The coal sample is distilled and volatiles are removed. The coke slag of a certain particle size is screened and selected to be loaded into a reaction tube for heating. After heating to a certain temperature, carbon dioxide is introduced at a certain flow rate to measure the carbon dioxide content in the gas after the reaction. The percentage of carbon dioxide reduced to carbon monoxide in the total amount of carbon dioxide introduced is used as an indicator of the chemical reactivity of coal to carbon dioxide. For the analysis and measurement of carbon dioxide, an Oswald gas analyzer is generally used. It mainly works based on the principle of gas absorption. The components of the mixed gas are selectively absorbed by a certain specific liquid, and a specific liquid can only absorb a certain specific gas. The gas content is analyzed by the amount of carbon dioxide absorbed.

[0003] During the absorption analysis of carbon dioxide by the Ostwald gas analyzer, the oxygen content absorbed in the absorption bottle is generally recorded by the change of the liquid level in the measuring tube. After the absorption test is completed, the liquid level in the measuring tube needs to be adjusted to return it to the initial position. This is generally achieved by pressing the level bottle or adjusting the height of the level bottle, that is, by changing the liquid level height in the level bottle, and then adjusting the liquid level height in the measuring tube according to the gas content in the transmission tube. However, since the measuring tube and the level bottle are both located in the frame plate, there is a certain amount of obstruction, and it is difficult to press, and the pressing force is not easy to control. On the one hand, it is easy for the liquid in the measuring tube to rush out due to excessive pressing force, and on the other hand, it is easy for the liquid level in the measuring tube to return to the original position due to insufficient pressing force, affecting the gas absorption test on the next side.

[0004] Therefore, it is necessary to invent an Oswald gas analyzer to solve the above problems. Utility Model Content

[0005] In order to solve the deficiencies of the prior art, the purpose of the utility model is to provide an Ostwald gas analyzer, which solves the problem in the prior art that since the measuring tube and the level bottle are both located in the frame plate, there is a certain amount of obstruction, pressing is more difficult, and the pressing force is not easy to control. On the one hand, it is easy for the liquid in the measuring tube to rush out due to excessive pressing force, and on the other hand, it is easy for the liquid level in the measuring tube to not return to the correct position due to insufficient pressing force, thereby affecting the gas absorption detection on the next side.

[0006] In order to achieve the above objectives, the utility model adopts the following technical solutions:

[0007] An Ostwald gas analyzer comprises a frame plate and a crossbeam tube penetrating the left and right side walls of the frame plate and extending to the outside, the crossbeam tube portion located inside the frame plate is connected to a plurality of absorption connecting tubes, the circulation of the plurality of absorption connecting tubes is controlled by a first three-way piston valve respectively, an absorption bottle for containing absorption liquid and absorbing gas is detachably connected to the bottom of the absorption connecting tube, a measuring tube for recording the change of liquid level in the absorption bottle is arranged at the right side of the absorption bottle inside the frame plate, a slide plate is longitudinally slidably arranged on the left side of the right side wall of the frame plate, a level bottle for adjusting the liquid level in the measuring tube is installed on the top surface of the slide plate, an expandable transmission tube is connected between the bottom end of the measuring tube and the bottom end of the level bottle, an air pump is installed on the right side of the right side wall of the frame plate, and the air pump is connected to the top of the level bottle through an expandable balancing air pipe.

[0008] As a preferred solution of the utility model, the right side of the left side wall of the frame plate extends rightward to form a support plate, and the bottom ends of the plurality of absorption bottles are detachably abutted against the top surface of the support plate.

[0009] As a preferred solution of the utility model, a vertical rail is provided on the left side of the right side wall of the frame plate, the slide plate can slide longitudinally along the vertical rail, an extension plate is detachably installed on the right end of the support plate, a casing that can be filled with water is installed on the top of the extension plate, the measuring tube is located in the casing, one end of the transmission tube longitudinally penetrates the extension plate, and the other end of the transmission tube longitudinally penetrates the slide plate, and an observation window is provided on one side wall of the casing.

[0010] As a preferred solution of the utility model, each of the bottom ends of the absorption connecting tubes is connected to a bottle cap, and the bottom ends of the multiple bottle caps are respectively sealed and connected to the top ends of the corresponding absorption connecting tubes. The crossbeam tube is located at the right side of the absorption connecting tube and is connected to a detection connecting tube. The detection connecting tube controls the flow through a second three-way piston valve. The detection connecting tube longitudinally penetrates the top surface of the casing and is detachably connected to the top end of the measuring tube.

[0011] As a preferred solution of the utility model, a mounting seat is installed on the right side of the right side wall of the frame plate, the air pump is detachably mounted on the top of the mounting seat, and the balancing air pipe transversely penetrates the right side wall of the frame plate.

[0012] As a preferred solution of the utility model, the portion of the cross beam tube located on the left side outside the frame plate is provided with an intake piston valve, and the portion of the cross beam tube located on the right side outside the frame plate is provided with a sealing piston valve.

[0013] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0014] In the utility model, during the absorption detection process, the bottom end of the level bottle is often lower than the bottom end of the measuring tube, which facilitates the change of the liquid level in the measuring tube. When the liquid level in the measuring tube needs to be reset, the slide plate is driven to slide longitudinally along the right side wall of the frame plate, thereby changing the longitudinal height of the level bottle, and finally the bottom end of the level bottle and the bottom end of the measuring tube are in the same horizontal plane, so that the subsequent height adjustment of the liquid level in the measuring tube has a certain reference standard. On the other hand, the gas in the air pump is pumped into or out of the level bottle through the balance air pipe, thereby changing the liquid level height in the level bottle, and then through the leveling The change in the liquid level in the bottle changes the gas content in the transmission tube, and then the changed gas content forces the liquid level height in the measuring tube to change until it is adjusted to the initial device. Finally, while ensuring that the bottom end of the measuring tube is flush with the bottom end of the level bottle, the air pump is used to change the liquid level height in the level bottle, and then the gas content in the transmission tube is changed, thereby changing the liquid level height in the measuring tube until it returns to its original position. Compared with manually changing the height of the level bottle and manually pressing the level bottle, it is better controlled, and the height change and the air pump volume are more precise, so that the liquid level adjustment of the measuring tube is more precise. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the plan view structure of the utility model;

[0017] Figure 3 For this utility model Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle.

[0018] Description of reference numerals:

[0019] 1. Frame plate; 2. Crossbeam tube; 3. Support plate; 4. Inlet piston valve; 5. Sealing piston valve; 6. Absorption connecting pipe; 7. First three-way piston valve; 8. Bottle cap; 9. Absorption bottle; 10. Detection connecting pipe; 11. Extension plate; 12. Box; 13. Second three-way piston valve; 14. Measuring tube; 15. Mounting seat; 16. Air pump; 17. Balance air pipe; 18. Vertical rail; 19. Slide plate; 20. Level bottle; 21. Transmission tube; 22. Observation window. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0021] The utility model provides Figure 1-Figure 3An Ostwald gas analyzer shown in the figure comprises a frame plate 1 and a crossbeam tube 2 penetrating the left and right side walls of the frame plate 1 and extending to the outside, the crossbeam tube 2 located inside the frame plate 1 is connected to a plurality of absorption connecting tubes 6, the circulation of the plurality of absorption connecting tubes 6 is controlled by a first three-way piston valve 7 respectively, an absorption bottle 9 for containing absorption liquid and absorbing gas is detachably connected to the bottom of the absorption connecting tube 6, a measuring tube 14 for recording the change of the liquid level in the absorption bottle 9 is arranged at the right side of the absorption bottle 9 inside the frame plate 1, a slide plate 19 is longitudinally slidably arranged on the left side of the right side wall of the frame plate 1, and an adjustable measuring tube 14 is installed on the top surface of the slide plate 19 14, a level bottle 20 for measuring the liquid level in the measuring tube 14, an expandable transmission tube 21 is connected between the bottom end of the measuring tube 14 and the bottom end of the level bottle 20, an air pump 16 is installed on the right side of the right side wall of the frame plate 1, and the air pump 16 is connected to the top of the level bottle 20 through an expandable balance air pipe 17. The absorption bottle 9 can be pre-filled with absorbent KOH or NaOH solution to absorb carbon dioxide gas, and the measuring tube 14 is pre-filled with 10% sulfuric acid aqueous solution as a closing liquid, and the basic liquid level height of the sulfuric acid aqueous solution is used as the initial height. After the carbon dioxide gas absorption analysis, the sulfuric acid aqueous solution in the measuring tube 14 needs to be adjusted to the initial height.

[0022] The right side of the left side wall of the frame plate 1 extends to the right to form a support plate 3, and the bottom ends of multiple absorption bottles 9 are detachably abutted against the top surface of the support plate 3. The support plate 3 can fix the positions of multiple absorption bottles 9 in the frame plate 1 to ensure that the absorption bottles 9 will not shake or tip over.

[0023] A vertical rail 18 is provided on the left side of the right side wall of the frame plate 1, and the slide plate 19 can slide longitudinally along the vertical rail 18. An extension plate 11 is detachably installed on the right end of the support plate 3, and a sleeve box 12 filled with water is installed on the top of the extension plate 11. The measuring tube 14 is located in the sleeve box 12, and one end of the transmission tube 21 longitudinally penetrates the extension plate 11, and the other end of the transmission tube 21 longitudinally penetrates the slide plate 19. An observation window 22 is provided on one side wall of the sleeve box 12. Water is contained in the sleeve box 12 to prevent the volume of the gas from changing when the temperature changes and affecting the measurement.

[0024] The bottom end of each absorption connecting tube 6 is connected to a bottle cap 8, and the bottom ends of the multiple bottle caps 8 are respectively sealed and connected to the top ends of the corresponding absorption connecting tubes 6. The crossbeam tube 2 is located on the right side of the absorption connecting tube 6 and is connected to a detection connecting tube 10. The detection connecting tube 10 is controlled to flow through a second three-way piston valve 13. The detection connecting tube 10 longitudinally penetrates the top surface of the sleeve box 12 and is detachably connected to the top end of the measuring tube 14. When the absorption bottle 9 absorbs carbon dioxide gas, the liquid level changes in the measuring tube 14 are penetrated through the observation window 22, thereby recording the content of the absorbed gas in the absorption bottle 9.

[0025] A mounting seat 15 is installed on the right side of the right side wall of the frame plate 1, and an air pump 16 is detachably installed on the top of the mounting seat 15. A balancing air pipe 17 horizontally penetrates the right side wall of the frame plate 1. When the air pump 16 works, gas is pumped into or out of the level bottle 20 through the balancing air pipe 17. This part of gas is insoluble in the liquid in the level bottle 20, thereby changing the liquid level height in the level bottle 20.

[0026] An intake piston valve 4 is provided at the portion of the cross beam tube 2 located on the left side outside the frame plate 1 , and a sealing piston valve 5 is provided at the portion of the cross beam tube 2 located on the right side outside the frame plate 1 .

[0027] In the present invention, during the absorption detection process, the bottom end of the level bottle 20 is often lower than the bottom end of the measuring tube 14, so as to facilitate the change of the liquid level in the measuring tube 14. When the liquid level in the measuring tube 14 needs to be reset, the slide plate 19 is driven to slide longitudinally along the right side wall of the frame plate 1, thereby changing the longitudinal height of the level bottle 20, and finally making the bottom end of the level bottle 20 and the bottom end of the measuring tube 14 in the same horizontal plane, so that the subsequent height adjustment of the liquid level in the measuring tube 14 has a certain reference standard. On the other hand, the gas in the air pump 16 is pumped into or out of the level bottle 20 through the balance air pipe 17, thereby changing the liquid level height in the level bottle 20, and then The change in the liquid level in the level bottle 20 changes the gas content in the transmission tube 21, and then the changed gas content forces the liquid level height in the measuring tube 14 to change until it is adjusted to the initial device. Finally, while ensuring that the bottom end of the measuring tube 14 is flush with the bottom end of the level bottle 20, the liquid level height in the level bottle 20 is changed by the air pump 16, and then the gas content in the transmission tube 21 is changed, thereby changing the liquid level height in the measuring tube 14 until it returns to its original position. Compared with manually changing the height of the level bottle 20 and manually pressing the level bottle 20, it is better controlled, and the height change and the pumping amount of the air pump 16 are more precise, so that the liquid level adjustment of the measuring tube 14 is more precise.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An Oswald gas analyzer, characterized in that: The invention comprises a frame plate (1) and a crossbeam tube (2) penetrating the left and right side walls of the frame plate (1) and extending to the outside, wherein the portion of the crossbeam tube (2) located inside the frame plate (1) is connected to a plurality of absorption connecting tubes (6), the circulation of the plurality of absorption connecting tubes (6) is controlled by a first three-way piston valve (7), the bottom of the absorption connecting tube (6) is detachably connected to an absorption bottle (9) capable of containing absorption liquid and absorbing gas, and a recording device for recording the absorption bottle (9) is provided at a position on the right side of the absorption bottle (9) inside the frame plate (1). (9) a measuring tube (14) with a changing liquid level inside the measuring tube (14), a slide plate (19) is longitudinally slidably arranged on the left side of the right side wall of the frame plate (1), a level bottle (20) capable of adjusting the liquid level inside the measuring tube (14) is installed on the top surface of the slide plate (19), an extendable transmission pipe (21) is connected between the bottom end of the measuring tube (14) and the bottom end of the level bottle (20), an air pump (16) is installed on the right side of the right side wall of the frame plate (1), and the air pump (16) is connected to the top end of the level bottle (20) through an extendable balance air pipe (17).

2. An Ostwald gas analyzer according to claim 1, characterized in that: The right side of the left side wall of the frame plate (1) extends rightward to form a support plate (3), and the bottom ends of the plurality of absorption bottles (9) are detachably abutted against the top surface of the support plate (3).

3. An Ostwald gas analyzer according to claim 2, characterized in that: A vertical rail (18) is provided on the left side of the right side wall of the frame plate (1), and the slide plate (19) can slide longitudinally along the vertical rail (18). An extension plate (11) is detachably mounted on the right end of the support plate (3), and a casing (12) whose interior can be filled with water is mounted on the top of the extension plate (11). The measuring tube (14) is located in the casing (12), and one end of the transmission tube (21) longitudinally penetrates the extension plate (11), and the other end of the transmission tube (21) longitudinally penetrates the slide plate (19), and an observation window (22) is provided on one side wall of the casing (12).

4. An Ostwald gas analyzer according to claim 3, characterized in that: The bottom end of each absorption connecting tube (6) is connected to a bottle cap (8), and the bottom ends of the plurality of bottle caps (8) are respectively sealed and connected to the top ends of the corresponding absorption connecting tubes (6). The crossbeam tube (2) is connected to a detection connecting tube (10) at a position on the right side of the absorption connecting tube (6). The flow of the detection connecting tube (10) is controlled by a second three-way piston valve (13). The detection connecting tube (10) vertically penetrates the top surface of the casing (12) and is detachably connected to the top end of the measuring tube (14).

5. An Ostwald gas analyzer according to claim 1, characterized in that: A mounting seat (15) is installed on the right side of the right side wall of the frame plate (1), the air pump (16) is detachably mounted on the top of the mounting seat (15), and the balance air pipe (17) transversely penetrates the right side wall of the frame plate (1).

6. An Ostwald gas analyzer according to claim 1, characterized in that: The portion of the cross beam tube (2) located on the left side outside the frame plate (1) is provided with an intake piston valve (4), and the portion of the cross beam tube (2) located on the right side outside the frame plate (1) is provided with a sealing piston valve (5).

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