CN217425097U - Gas composition analyzer - Google Patents

Abstract

The utility model discloses a gas component analyzer, aiming at solving the technical problems of inconvenient use and operation and low detection accuracy of the prior Ordovician gas analyzer; the device comprises a bracket, an air measuring cylinder, an absorption bottle and a level bottle, wherein the air measuring cylinder, the absorption bottle and the level bottle are arranged on the bracket; one end of the air measuring cylinder is communicated with the absorption bottle through a pipeline, and the other end of the air measuring cylinder is communicated with the level bottle through a pipeline; the air pump is communicated with the level bottle through a pipeline; the control valve is arranged in a pipeline for communicating the air pump and the level bottle and comprises an air inlet interface communicated with an air outlet of the air pump, a first air outlet interface communicated with an air inlet of the level bottle and a second air outlet interface communicated with external atmospheric pressure; the control module is respectively electrically connected with the air pump and the control valve and is used for controlling the start and stop of the power supply of the air pump and the opening and closing of the valves in the first air outlet interface and the second air outlet interface; the utility model discloses a measurement accuracy is more accurate, the operation is more convenient, experimental efficiency has been promoted.

Description

Gas composition analyzer

Technical Field

The utility model relates to a gaseous composition detects technical field, concretely relates to gaseous composition analysis appearance.

Background

The Ordovician gas analyzer is an instrument for analyzing the component content of gas, and is used for analyzing the component contents of mixed gas containing oxygen, carbon dioxide, carbon monoxide, methane, nitrogen and hydrogen.

The existing gas component detection mostly adopts a 1904-Ao type gas analysis instrument (six-tube type) for analysis and determination, when in use, the leveling bottle needs to be repeatedly lifted to form a certain height difference and generate a certain pressure, and then the liquid in the leveling bottle is squeezed into a corresponding gas measuring cylinder, so that the gas to be detected in the gas measuring cylinder is pushed into an absorption bottle, and the content of each component in the gas is repeatedly measured; the height of the level bottle lifted by each manual operation has inevitable errors, so that the method has the defects of poor accuracy, inconvenient operation and the like.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is known to a person skilled in the art.

Disclosure of Invention

An object of the utility model is to provide a gas composition analyzer aims at solving the technical problem that current gaseous analyzer of the ox formula uses the operation inconvenient, the accuracy is low.

In order to solve the technical problem, the utility model adopts the following technical scheme:

designing a gas composition analyzer, which comprises a bracket, a gas measuring cylinder, an absorption bottle and a leveling bottle, wherein the gas measuring cylinder, the absorption bottle and the leveling bottle are arranged on the bracket; one end of the air measuring cylinder is communicated with the absorption bottle through a pipeline, and the other end of the air measuring cylinder is communicated with the level bottle through a pipeline; further comprising: the air pump is communicated with the level bottle through a pipeline; the control valve is arranged in a pipeline for communicating the air pump and the level bottle and comprises an air inlet interface communicated with an air outlet of the air pump, a first air outlet interface communicated with an air inlet of the level bottle and a second air outlet interface communicated with external atmospheric pressure; and the control module is respectively electrically connected with the air pump and the control valve and is used for controlling the start and stop of the power supply of the air pump and the opening and closing of the valves in the first air outlet interface and the second air outlet interface.

The control module is a singlechip, a PLC or a timer with a circuit on-off control function.

Preferably, the air measuring cylinder is provided with scale marks along the vertical direction.

Preferably, the top of the level bottle is provided with a rubber piston, and the piston is provided with a through hole.

Preferably, a gas stop valve is arranged in a pipeline for communicating the absorption bottle with the gas measuring cylinder.

Preferably, the bracket is provided with a plurality of trays for fixing the air measuring cylinder, the absorption bottle and the leveling bottle respectively.

Preferably, the control valve is a 3V308NC solenoid valve for Adam.

Compared with the prior art, the utility model discloses a main beneficial technological effect lies in:

the utility model increases the pressure of the gas in the level bottle by the air pump, further realizes the reagent in the level bottle to enter the gas cylinder, pushes the gas to be reacted in the gas cylinder to enter the absorption bottle, and controls the start and stop of the air pump and the opening and closing of the valve of the control valve by the singlechip or the timer, so that the air intake and the exhaust are more automatic; compared with the original method of repeatedly lifting the level bottle up and down to form pressure difference for test detection by manpower, the device has the advantages of more accurate measurement precision, more convenient operation and higher test efficiency.

Drawings

Fig. 1 is a schematic structural view of the gas composition analyzer of the present invention.

Fig. 2 is a schematic structural diagram of the control valve of the present invention.

In the above figures, 1, a support; 11. a tray; 2. a measuring cylinder; 3. an absorption bottle; 31. a gas shutoff valve; 4. a leveling bottle; 5. an air pump; 6. a control valve; 61. an air inlet interface; 62. an exhaust interface; 7. a rubber piston.

Detailed Description

The following examples are provided only for illustrating the present invention in detail and are not intended to limit the scope of the present invention in any way.

In the description of the present invention, it is to be understood that the directions or positional relationships indicated as referring to the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., are based on the directions or positional relationships shown in the drawings, and are only for convenience of describing technical solutions and simplifying the description, but do not indicate or imply that the referred device or element must have a specific direction, be constructed in a specific direction and operation, and thus, should not be construed as limiting the present invention; reference herein to "first," "second," etc., is used to distinguish between similar items and not to limit the particular order or sequence.

The programs referred to or relied on in the following embodiments are all conventional programs or simple programs in the art, and those skilled in the art can make routine selection or adaptation according to specific application scenarios.

Example 1: a gas composition analyzer, as shown in figure 1, comprises a bracket 1, a gas measuring cylinder 2, an absorption bottle 3, a level bottle 4, an air pump 5, a control valve 6 and a singlechip.

The bracket 1 is used for installing and fixing the air measuring cylinder 2, the absorption bottle 3, the leveling bottle 4 and the air pump 5, so that the components form a test device with a certain volume structure; the support 1 is formed by splicing wood, so that the overall weight can be reduced, the collision damage caused by the installation of the bottle type components can be avoided, the support 1 is further provided with a plurality of trays 11 for fixing the measuring inflator 2, the absorption bottle 3 and the leveling bottle 4, and the bottles are easily broken and damaged due to the fact that the glass components are in direct contact with the support 1, so that the trays 11 made of soft plastic materials are installed at the bottoms of the bottle type components and have a buffering effect.

The absorption bottle 3 is provided with a plurality of absorption bottles fixed on the support 1 according to the requirement of experimental gas analysis, the top of the gas measuring cylinder 2 is communicated with the absorption bottle 3 through a rubber hose, a gas stop valve 31 is arranged in a pipeline between the top of the gas measuring cylinder 2 and the absorption bottle 3, and when the gas to be detected is filled in the gas measuring cylinder 2, the gas stop valve 31 is closed to prevent the gas to be detected from entering the absorption bottle 3; just the bottom of gas measuring cylinder 2 is passed through the bottom intercommunication of rubber hose and level bottle 4, upwards is equipped with the scale mark along vertical mode on 2 bottlenecks of gas measuring cylinder to detect gaseous volume after the observation reaction, the top of level bottle 4 is equipped with rubber piston 7 to be equipped with the through-hole with the rubber hose adaptation on rubber piston 7, the gas transmission port of air pump 5 passes through the rubber hose intercommunication with the through-hole on the rubber piston 7, and install control valve 6 in the rubber hose of air pump 5 and level bottle 4 intercommunication, control valve 6 is two three way solenoid valve of 3v308nc type of alder guest, see figure 2, include the inlet port 61 that passes through the rubber hose intercommunication with the output of air pump 5, with the second outlet port 62 that the air inlet of level bottle 4 passes through the first outlet port of rubber hose intercommunication and communicates with external atmospheric pressure.

The single chip microcomputer is respectively electrically connected with the air pump 5 and the control valve 6, and the single chip microcomputer can select MCS-51 series, so that the price is low, the application range is wide, and the maintenance and the replacement are convenient; the single chip microcomputer is also provided with a timer, the timer adopts an ABB CT-ERD.12 simulation timer, the time for starting the air pump is calculated through the timer, so that the single chip microcomputer controls the starting and stopping of the power supply of the air pump 5 and controls the opening and closing of the valves in the first air outlet port 61 and the second air outlet port of the control valve 6, and the valve in the second air outlet port 62 is normally open under normal conditions, so that the pressure in the level bottle 4 is the same as the atmospheric pressure; when pressure needs to be filled into the level bottle 4, the singlechip controls the power supply of the air pump 5 to be started, and controls the valve in the second air outlet port 62 to be closed and the valve in the first air outlet port 61 to be opened at the same time, so that the pressure in the air pump 5 is filled into the level bottle 4, and the reagent in the level bottle 4 flows into the air cylinder 2 to be filled: the reagent in the level bottle 4 does not react with the gas to be detected; the gas to be detected in the gas measuring cylinder 2 is squeezed into the absorption bottle 3; when the preset reaction time is reached, the singlechip controls the power supply of the air pump 5 to be closed, meanwhile, the valve in the second air outlet port 62 is opened, and the valve in the first air outlet port 61 is closed, so that the air filled in the level bottle 4 is discharged into the atmosphere, and finally, the pressure is kept to be the same as the atmospheric pressure.

The operation and use method of the gas component analyzer is as follows:

(1) closing the gas stop valve 31, and filling a certain volume of gas to be detected into the gas cylinder 2 through the gas supply pipe to be detected;

(2) the gas stop valve 31 corresponding to the gas component to be detected is opened, the singlechip controls the power supply of the air pump 5 to be started, and simultaneously controls the valve in the first gas outlet interface 61 to be opened and the valve in the second gas outlet interface 62 to be closed;

(3) the gas pressure in the level bottle 4 is increased, so that the reagent at the bottom of the level bottle enters the gas measuring cylinder 2, and the gas to be detected in the gas measuring cylinder 2 is pushed into the corresponding absorption bottle 3;

(4) after the time calculated by the timer reaches the set reaction time, the singlechip controls the power supply of the air pump 5 to be turned off, simultaneously closes the valve in the first air outlet port 61, opens the valve in the second air outlet port 62, so that the air filled in the leveling bottle 4 is discharged into the atmosphere through the second air outlet port 62, and the next operation is carried out after the pressure of the air in the leveling bottle 4 is stable;

(5) observing the scale marks on the measuring gas cylinder 2, and calculating the content of the gas component to be detected;

(6) and (5) repeating the steps (2) to (5) until all gas components are detected.

The present invention has been described in detail with reference to the accompanying drawings and embodiments, but those skilled in the art will understand that various specific parameters in the above embodiments can be changed or equivalent substitutions can be made on related components, structures and materials without departing from the technical concept of the present invention, thereby forming a plurality of specific embodiments, which are common variations of the present invention and will not be described in detail herein.

Claims (7)

1. A gas composition analyzer comprises a bracket, a gas measuring cylinder, an absorption bottle and a level bottle, wherein the gas measuring cylinder, the absorption bottle and the level bottle are arranged on the bracket; one end of the air measuring cylinder is communicated with the absorption bottle through a pipeline, and the other end of the air measuring cylinder is communicated with the level bottle through a pipeline; it is characterized by also comprising:

the air pump is communicated with the level bottle through a pipeline;

the control valve is arranged in a pipeline for communicating the air pump and the level bottle and comprises an air inlet interface communicated with an air outlet of the air pump, a first air outlet interface communicated with an air inlet of the level bottle and a second air outlet interface communicated with external atmospheric pressure;

and the control module is respectively electrically connected with the air pump and the control valve and is used for controlling the start and stop of the power supply of the air pump and the opening and closing of the valves in the first air outlet interface and the second air outlet interface.

2. The gas composition analyzer according to claim 1, wherein the measuring cylinder is provided with corresponding graduation marks along a vertical direction.

3. The gas composition analyzer of claim 1, wherein the top of the level vial is provided with a rubber piston, and the piston is provided with a through hole.

4. The gas composition analyzer of claim 1, wherein a gas stop valve is provided in a pipe connecting the absorption bottle and the gas measuring cylinder.

5. The gas composition analyzer of claim 1, wherein the holder is provided with a plurality of trays for holding the measuring cylinder, the absorption flask and the leveling flask, respectively.

6. The gas composition analyzer of claim 1, wherein the control valve is a 3V308NC solenoid valve.

7. The gas composition analyzer of claim 1, wherein the control module is a single chip, a PLC, or a timer.

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