CN216024972U - Gas collecting device is used in laboratory - Google Patents
Gas collecting device is used in laboratory Download PDFInfo
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- CN216024972U CN216024972U CN202122594031.2U CN202122594031U CN216024972U CN 216024972 U CN216024972 U CN 216024972U CN 202122594031 U CN202122594031 U CN 202122594031U CN 216024972 U CN216024972 U CN 216024972U
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Abstract
The utility model discloses a gas collecting device for a laboratory, which comprises a water tank, a gas storage floating cover and a scale crutch for metering, wherein the bottom of the gas storage floating cover is provided with a gas inlet pipe and a gas outlet pipe, the opening of the gas storage floating cover is downwards buckled in the water tank, the water level in the water tank is higher than the top of the gas storage floating cover and lower than gas holes of the gas inlet pipe and the gas outlet pipe, and the scale crutch is vertically arranged at the bottom of the gas storage floating cover. The gas collection and metering can be realized simultaneously, and the experimental efficiency can be effectively improved.
Description
Technical Field
The utility model belongs to the technical field of laboratory instruments, and particularly relates to a gas collecting device for a laboratory.
Background
At present, a biogas fermentation experiment or a microbial fermentation hydrogen production experiment is carried out in a laboratory, most of biogas and hydrogen are collected by adopting a drainage method, and the volume of discharged water is taken out excessively to calculate the biogas or hydrogen amount. This method is easy to operate, but there are some problems in practical use: firstly, water needs to be supplemented into the gas collecting bottle frequently, the smaller the gas collecting bottle is, the more frequent the water supplementing times are, the labor is consumed, and the experimental efficiency is influenced; secondly, the existing gas collecting bottle is mostly formed by assembling a similar wide-mouth reagent bottle with a rubber plug, frequent opening of the plug for water supplement also brings great influence on the sealing property of the gas collecting bottle, and causes gas leakage; the volume of the discharged water needs to be measured at regular time, the gas production rate is calculated, the scale of experiments carried out in a laboratory is not large, errors are easy to occur in the length of interval time of the measured volume, the operation process and the like, the accuracy of data is affected, and the gas flowmeter is rarely used in the laboratory due to high cost.
SUMMERY OF THE UTILITY MODEL
The gas collecting device for the laboratory is simple in structure and convenient to use, and can be used for collecting and metering gas and effectively improving the experimental efficiency.
In order to achieve the purpose, the technical scheme of the utility model is as follows: the utility model provides a gas collecting device is used in laboratory, includes basin, gas storage floating cover and the scale that is used for the measurement turns, the bottom of gas storage floating cover is equipped with intake pipe and outlet duct, and gas storage floating cover mouth back-off is in the basin down, and the water level is higher than the gas storage floating cover top and is less than the gas pocket of intake pipe and outlet duct in the basin, and the vertical setting of scale turns in the bottom of gas storage floating cover.
Furthermore, the gas collection device also comprises a support frame which is concave, the support frame is connected to the water tank in an inverted buckle manner, a through hole for the scale crutch to pass through is formed in the support frame, and the scale crutch passes through the through hole.
Furthermore, the support frame passes through II detachable connections of buckle I and buckle on the outer wall of basin.
Furthermore, the scale crutch is provided with a standard scale, the scale value is increased from zero to top, and in an initial state, when the gas storage floating cover is abutted against the bottom of the water tank, the top of the support frame is aligned with the initial zero scale position on the scale crutch.
Further, the air storage floating cover is in a cylinder shape with a known inner diameter or a square cylinder shape with a known side length.
The technical scheme adopted by the utility model has the advantages that:
the utility model does not need to supplement water frequently in the gas collection process, only the water level in the water tank can ensure that the air in the gas storage floating cover is exhausted, the gas exhaust process in the gas storage floating cover is completed under the action of the gravity of the gas storage floating cover, and no additional water is needed to be added into the gas storage floating cover. The top of the gas storage floating cover is provided with a scale crutch, and in the gas collection process, the gas volume can be calculated by combining the inner diameter area of the gas storage floating cover only by recording the floating height of the gas storage floating cover, so that the gas collection is realized and the gas is measured at the same time. The whole process is simple and convenient to operate, the calculation is simple, the labor and the energy of experimenters are saved, and the experiment efficiency can be effectively improved.
Drawings
The utility model is described in further detail below with reference to the following figures and detailed description:
FIG. 1 is a schematic front view of a gas collection apparatus of the present invention;
fig. 2 is a schematic top view of a gas collection apparatus of the present invention.
The labels in the above figures are respectively: 1. the water tank, 2, the air storage floating cover, 3, the air inlet pipe, 4, the air outlet pipe, 5 and the scale crutch; 6. a buckle I; 7. a buckle II; 8. a support frame; 81. and a through hole.
Detailed Description
In the present invention, it is to be understood that the term "length"; "Width"; "Up"; "Down"; "front"; "Back"; "left"; "Right"; "vertical"; "horizontal"; "Top"; "bottom" "inner"; "outer"; "clockwise"; "counterclockwise"; "axial"; "planar direction"; "circumferential" and the like indicate orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the indicated device or element must have a particular orientation; constructed and operative in a particular orientation and therefore should not be construed as limiting the utility model.
As shown in fig. 1 and 2, the gas collecting device for the laboratory comprises a water tank 1, a gas storage floating cover 2 and a scale crutch 5 for metering, wherein a gas inlet pipe 3 and a gas outlet pipe 4 are arranged at the bottom of the gas storage floating cover 2, the opening of the gas storage floating cover 2 is downwards buckled in the water tank 1, the water level in the water tank 1 is higher than the top of the gas storage floating cover 2 and lower than the gas holes of the gas inlet pipe 3 and the gas outlet pipe 4, and the scale crutch 5 is vertically arranged at the bottom of the gas storage floating cover 2. The gas collection and metering can be realized simultaneously, and the experimental efficiency can be effectively improved.
The gas collection device further comprises a support frame 8, the support frame 8 is concave, the support frame 8 is connected to the water tank 1 in an inverted buckle mode, the support frame 8 is detachably connected to the outer wall of the water tank 1 through a buckle I6 and a buckle II 7, a through hole 81 for the scale crutch 5 to penetrate is formed in the support frame 8, and the scale crutch 5 penetrates through the through hole 81.
The scale crutch 5 is provided with standard scales, the scale values are increased from top to bottom from zero, and in an initial state, when the gas storage floating cover 2 abuts against the bottom of the water tank 1, the top of the support frame 8 is aligned with the initial zero scale position on the scale crutch 5.
Specifically, a buckle I6 and a buckle II 7 are arranged on the outer side of the water tank 1 close to the top of the water tank, and the two buckles are symmetrical in position and used for fixing a support frame 8; the mouth of the gas storage floating cover 2 is downwards buckled in the water tank 1 in an inverted way and is sealed by water, the top of the gas storage floating cover 2 is provided with two gas inlet pipes 3 and two gas outlet pipes 4 which are communicated with the inside and the outside of the gas storage floating cover 2, the gas inlet pipes 3 are used as methane input or hydrogen output ports, and the gas outlet pipes 4 are used as methane output or hydrogen output ports; in an initial state, the water tank 1 is filled with a proper amount of water, the air storage floating cover 2 is buckled in the water tank 1 in an inverted mode, one or two of the air inlet pipe 3 and the air outlet pipe 4 are kept to be communicated with the outside, then the air storage floating cover 2 sinks under the action of gravity and discharges internal air, and when the air storage floating cover 2 is abutted to the bottom of the water tank 1, the water level in the water tank 1 is guaranteed to be higher than the top of the air storage floating cover 2 and does not flood air holes of the air inlet pipe 3 and the air outlet pipe 4, so that air in the air storage floating cover can be fully discharged.
The scale crutch 5 is arranged at the center of the top of the gas storage floating cover 2, the scale crutch 5 is provided with standard scales, the scale value is increased from top to bottom from zero, and the scale value is accurate to millimeter; the supporting frame 8 is in a regular concave shape, and the two support legs can be fixed to the water tank 1 through a buckle I6 and a buckle II 7 and can also be detached; a through hole 81 is formed in the position, corresponding to the scale crutch 5, of the top of the support frame 8, the size of the through hole 81 is larger than that of the scale crutch 5, when the support frame 8 is fixed to the water tank 1, the scale crutch 5 penetrates through the through hole 81 in the top of the support frame 8, and is used for maintaining the vertical state of the air storage floating cover during up-and-down floating on one hand and scale reading of the scale crutch on the other hand; in the initial state, when the air storage floating cover 2 is abutted against the bottom of the water tank 1, the top of the support frame 8 is positioned at the initial zero scale position on the scale crutch 5.
Preferably, the size of the through hole at the top of the support frame 8 is not more than 5mm of the peripheral size of the scale crank on the air storage floating cover, so that the air storage floating cover can float freely up and down, and the air storage floating cover is prevented from being greatly inclined when the gas quantity in the air storage floating cover is large.
The air storage floating cover 2 is in a cylinder shape with a known inner diameter or a square cylinder shape with a known side length, preferably, the water tank 1 and the air storage floating cover 2 are in cylinder shapes, and the inner diameter of the air storage floating cover 2 is preferably large so as to calculate the inner diameter circular area. The inner diameter of the gas storage floating cover is known, and the rising height of the gas storage floating cover in a certain gas collection time can be read by a scale value on a scale crutch at the top of the gas storage floating cover, so that the yield of methane or hydrogen in a certain gas collection time can be calculated.
When the gas storage floating cover works, the gas inlet pipe 3 is used as a gas inlet and is connected with a methane or hydrogen fermentation bottle through a hose, the gas outlet pipe 4 is temporarily closed after the hose connection, the gas storage floating cover 2 floats upwards in the gas collection process, the vertical floating is maintained by the support frame 8, the floating distance of the gas storage floating cover 2 is read according to the scale crutch 5, and the gas volume is calculated by combining the inner diameter of the gas storage floating cover 2; when the gas in the gas storage floating cover 2 is collected to a certain amount, the hose with the closed gas outlet is opened to sample or discharge the gas, and after the gas is discharged, the gas storage floating cover 2 sinks under the action of gravity to prepare for gas collection again.
The utility model does not need to supplement water frequently in the gas collection process, only the water level in the water tank can ensure that the air in the gas storage floating cover is exhausted, the gas exhaust process in the gas storage floating cover is completed under the action of the gravity of the gas storage floating cover, and no additional water is needed to be added into the gas storage floating cover. The top of the gas storage floating cover is provided with a scale crutch, and in the gas collection process, the gas volume can be calculated by combining the inner diameter area of the gas storage floating cover only by recording the floating height of the gas storage floating cover, so that the gas collection is realized and the gas is measured at the same time. The whole process is simple and convenient to operate, the calculation is simple, the labor and the energy of experimenters are saved, and the experiment efficiency can be effectively improved.
The utility model is described above with reference to the accompanying drawings, it is obvious that the specific implementation of the utility model is not limited by the above-mentioned manner, and it is within the scope of the utility model to adopt various insubstantial modifications of the technical solution of the utility model or to apply the concept and technical solution of the utility model directly to other occasions without modification.
Claims (5)
1. The utility model provides a gas collecting device is used in laboratory which characterized in that: the water level in the water tank (1) is higher than the top of the gas storage floating cover (2) and lower than air holes of the gas inlet pipe (3) and the air outlet pipe (4), and the scale crutch (5) is vertically arranged at the bottom of the gas storage floating cover (2).
2. A gas collection apparatus for a laboratory as defined in claim 1, wherein: the gas collection device further comprises a support frame (8), the support frame (8) is concave, the support frame (8) is connected to the water tank (1) in a reverse buckling mode, a through hole (81) for the scale crutch (5) to penetrate through is formed in the support frame (8), and the scale crutch (5) penetrates through the through hole (81).
3. A gas collection apparatus for a laboratory as defined in claim 2, wherein: the support frame (8) is detachably connected to the outer wall of the water tank (1) through a buckle I (6) and a buckle II (7).
4. A gas collection apparatus for a laboratory as claimed in claim 2 or claim 3 wherein: the scale crutch (5) is provided with standard scales, the scale values are increased from top to bottom from zero, and in an initial state, when the gas storage floating cover (2) is abutted against the bottom of the water tank (1), the top of the support frame (8) is aligned with the initial zero scale position on the scale crutch (5).
5. A gas collection apparatus for a laboratory as defined in claim 4, wherein: the air storage floating cover (2) is in a cylinder shape with known inner diameter or a square cylinder shape with known side length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122594031.2U CN216024972U (en) | 2021-10-27 | 2021-10-27 | Gas collecting device is used in laboratory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122594031.2U CN216024972U (en) | 2021-10-27 | 2021-10-27 | Gas collecting device is used in laboratory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216024972U true CN216024972U (en) | 2022-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122594031.2U Active CN216024972U (en) | 2021-10-27 | 2021-10-27 | Gas collecting device is used in laboratory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216024972U (en) |
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2021
- 2021-10-27 CN CN202122594031.2U patent/CN216024972U/en active Active
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