CN215727014U - Sampling device for measuring gas-liquid ratio in gas-liquid mixed fluid - Google Patents
Sampling device for measuring gas-liquid ratio in gas-liquid mixed fluid Download PDFInfo
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- CN215727014U CN215727014U CN202121985690.2U CN202121985690U CN215727014U CN 215727014 U CN215727014 U CN 215727014U CN 202121985690 U CN202121985690 U CN 202121985690U CN 215727014 U CN215727014 U CN 215727014U
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Abstract
The utility model provides a sampling device for measuring a gas-liquid ratio in a gas-liquid mixed fluid, which comprises a sampling container, a sampling component and an auxiliary component, wherein the sampling container comprises an air release part positioned at the upper part, a metering part positioned at the neck part and a sample storage part positioned at the lower part; the outer diameter of the air release part is larger than that of the metering part; the bottom of the sampling container is provided with an opening, one side of the opening is connected with a bottom cover, and the size of the bottom cover is not smaller than that of the opening; the sampling component comprises a pulling connecting piece connected with the bottom cover, and one end of the pulling connecting piece penetrates through the sampling container and penetrates out of the air release part of the sampling container; the auxiliary member comprises a floater and a lifting member, and the floater is connected with the lifting member. By adopting the technical scheme of the utility model, the gas-liquid ratio in various gas-liquid contact systems can be conveniently, flexibly and quickly determined, and data support is provided for the optimized operation of the system.
Description
Technical Field
The utility model relates to the technical field of gas-liquid mixing, in particular to a sampling device for measuring a gas-liquid ratio in gas-liquid mixed fluid.
Background
Gas-liquid mixed multiphase flows are very common in process technology and environmental protection technology, and such processes are mainly used for gas transmission, such as aeration, stripping or separation processes, such as air flotation and the like. And the gas-to-liquid ratio is an important operating parameter for process control and optimization. For example, air flotation is a water treatment process whose principle is to introduce gas into the water body to be treated by different means and form bubbles. And the bubbles are adhered to the surface of the impurities, so that the grease, the particles and the like are lifted to the liquid level to form floating mud, and then the floating mud is discharged out of the water body.
The flotation unit is usually provided with a dedicated contact mixing zone. During operation, the gas-liquid ratio at the position can be used for evaluating the operation state of the system and making reasonable adjustment according to the requirement. The air flotation can obtain satisfactory effect only if the gas-liquid ratio is always kept within a reasonable interval range.
The gas-to-liquid ratio is defined as the ratio of the volume of gas to the volume of liquid in which it is dispersed. This value depends on the input of gas and liquid, the average bubble size, the temperature, the liquid viscosity and whether or not a surfactant is present. The size of the bubbles is susceptible to the liquid viscosity and surfactant under the conditions of the total input volume determination, and eventually causes an imbalance in the rising speed of the bubbles. Therefore, the actual gas-liquid ratio cannot be simply calculated through the input quantity, and needs to be selected through operation experience, so that the gas-liquid ratio data is inconvenient to obtain and inaccurate, and inconvenience is brought to adjustment in the operation process.
SUMMERY OF THE UTILITY MODEL
In view of the above technical problems, the present invention discloses a sampling device for measuring gas-liquid ratio in a gas-liquid mixed fluid, which can conveniently and flexibly determine the gas-liquid ratio in various gas-liquid contact systems.
In contrast, the technical scheme of the utility model is as follows:
a sampling device for measuring a gas-liquid ratio in a gas-liquid mixed fluid comprises a sampling container, a sampling component and an auxiliary component, wherein the sampling container comprises an air release part positioned at the upper part, a metering part positioned at the neck part and a sample storage part positioned at the lower part; the outer diameter of the air release part is larger than that of the metering part;
the bottom of the sampling container is provided with an opening, one side of the opening is movably connected with a bottom cover, and the size of the bottom cover is not smaller than that of the opening;
the sampling component comprises a pulling connecting piece connected with the bottom cover, and one end of the pulling connecting piece penetrates through the sampling container and penetrates out of the air release part of the sampling container;
the auxiliary member includes a float and a lifting member for contacting the degassing portion or the metering portion of the sampling container and floating the sampling container on the liquid, the float being connected to the lifting member.
Wherein, the gas release part is open and used for releasing gas. One side of the opening is movably connected with the bottom cover, and the movable connection can be sliding connection or rotating connection. Preferably, one side of the opening is rotatably connected with the bottom cover. The float of the auxiliary member is used to float the sampling container on the liquid. Further preferably, the bottom cover is matched with the size of the opening.
By adopting the technical scheme, the sampling container is placed into the liquid to be sampled, the bottom cover is opened, the sampling container floats on the liquid through the floater, and the gas-liquid mixture starts to freely enter the sampling container; the connector is pulled to cover and seal the bottom cover on the opening of the bottom, and the lifting member lifts the sampling container at the moment, so that the liquid surface entering the sampling container is kept at the air release part or the metering part. Then lifting the sampling container, lifting the sampling container from the liquid to be measured, and separating the sampling container from the auxiliary component; and (3) standing the sampling container on the platform, separating the gas in the sampling container through the gas release part after the gas in the sampling container rises at the neck of the sampling container, measuring the volume change of the liquid in the container after the liquid level in the container is stable, and calculating to obtain the gas-liquid ratio.
Furthermore, the mixed liquid with a set volume can be taken out of the pool body through the sampling container and then is static, after the gas is released and the liquid level is stable, the scale at the neck of the sampling container is read and converted into the volume, and the gas-liquid ratio of the obtained sampling area can be measured by combining the volume corresponding to the scale corresponding to the initial scale of the liquid level when the sampling container is just taken out.
Further, under many circumstances, because gaseous rises fast in the sample liquid, the liquid level is unstable in the container neck among the sampling process, can not accurate reading, can be fixed through guaranteeing sample volume at every turn, sample at every turn and fill up measurement portion and storage appearance portion just, then still wait that gaseous is released, the liquid level stabilizes the back, read the scale of sampling container neck, through calculating the volume of measurement portion and storage appearance portion and the volume difference of filling up measurement portion and storage appearance portion below this scale, obtain the gas-liquid ratio of sample district.
As a further improvement of the utility model, the lifting member is in contact with the outgassing portion or the metering portion of the sampling container. Further, the lifting member contacts the outgassing portion of the sampling container and floats the sampling container on the liquid.
As a further improvement of the utility model, the lifting member comprises a fixing ring which is positioned in the middle of the floating object and used for fixing the sampling container, the fixing ring is provided with a notch, the opening width of the notch is larger than the diameter of the neck of the sampling container, and the inner diameter of the fixing ring is not larger than the maximum outer diameter of the air release part and is not smaller than the diameter of the neck of the sampling container; the floater is a plurality of, except that solid fixed ring breach side department, interconnect between the adjacent floater, the floater is connected with solid fixed ring.
As a further improvement of the utility model, the pull connecting piece is a pull rope.
As a further refinement of the utility model, the sampling member comprises a bottom cap opening member for separating the bottom cap from the opening.
As a further improvement of the utility model, the bottom cover is connected or hinged with the sampling container through a rotating shaft.
As a further improvement of the present invention, the bottom cap opening member includes an elastic member located outside the sampling container, and one end of the elastic member is connected to an outer sidewall of the sampling container and the other end is connected to a bottom of the bottom cap. Further preferably, the elastic member is a spring. By adopting the technical scheme, the bottom cover of the sampling container is completely opened under the natural state of the spring, and the included angle alpha =180 degrees with the wall surface. The bottom surface can be closed to open under the action of external force for pulling the connecting piece, and the spring is elastically deformed. After the external force disappears, the spring restores to the natural state. By adopting the technical scheme, when sampling, the opened bottom cover does not block or influence the ascending gas-liquid mixed fluid, so that the formation of local turbulence is avoided, and the sampling error is avoided.
As a further improvement of the utility model, except for the notch side of the fixing ring, the adjacent floaters are connected by a connecting piece. Further, the connecting piece is rod-shaped.
As a further improvement of the utility model, the floaters are provided with sampling liquid level marks. By adopting the technical scheme, when the floater loads the sampling container through the fixing ring, the sampling mark is kept parallel and level with the scale starting point of the neck of the container, the sampling volume is ensured to be fixed, the sampling volume is the volume of the metering part and the sample storage part at each time, and the gas-liquid ratio is conveniently calculated.
As a further improvement of the utility model, the floaters are connected by connecting rods to form a symmetrical shape. As a further improvement of the utility model, the floater is connected with the fixed ring through a radial connecting piece, and the radial connecting piece, the connecting piece and the fixed ring are positioned on the same plane.
As a further development of the utility model, the float is connected to a control member for controlling the position of the sampling device. Preferably, the control member is a control lever or a control cord. Further preferably, the control rod or the control rope can be converged into a node, and the position of the sampling device is controlled by a handheld or mechanical structure such as a pulley and the like.
And the floater is provided with a control rope. Further preferably, the floater is provided with a connection point, and the control rope is connected with the connection point. It is further preferred that the control lines on each float are of equal length.
As a further improvement of the utility model, the float is spherical, cubic.
As a further improvement of the utility model, the number of the floating objects is 3 or more than 3. The floaters are connected with each other to form an equilateral triangle. Preferably, the adjacent floaters are connected through thin rods.
As a further improvement of the utility model, the sampling device for measuring the gas-liquid ratio in the gas-liquid mixed fluid comprises a sealing member for sealing the bottom cover and the opening, wherein the sealing member is positioned at the periphery of the upper surface of the bottom cover or positioned at the periphery of the opening at the bottom of the sampling container.
As a further improvement of the utility model, the outgassing portion is funnel-shaped.
As a further development of the utility model, the sampling container has a circular cross-section in its neck, which is provided with a scale value for reading the volume of liquid present in the container.
As a further development of the utility model, the total volume of the metering portion and the sample reservoir in the neck of the sampling container is a defined value, denoted V. The entire neck is provided with a scale value for reading the volume of liquid present in the container.
As a further development of the utility model, the neck and the lower part of the sampling container, i.e. the metering section, are detachably connected to the sample reservoir. The sample holder may be produced in a range of different volume specifications, forming a range of different sample volumes, e.g. 500ml, 1000ml, 1500ml, 2000ml, with the metering portion of the neck to accommodate different systems and measurement ranges.
Compared with the prior art, the utility model has the beneficial effects that:
by adopting the technical scheme of the utility model, the sampling device is placed in the tank body where the gas-liquid mixed fluid is located, the gas-liquid mixture with fixed or set volume is collected and then taken out, after the gas in the gas-liquid mixture in the sampling container is released and the liquid level is stable, the descending volume is read through the scale of the metering part of the sampling container, and the ratio of the value to the fixed or set volume of the collected liquid is the measured gas-liquid ratio. The device can conveniently, flexibly and quickly determine the gas-liquid ratio in various gas-liquid contact systems, and provides data support for the optimized operation of the system.
Drawings
FIG. 1 is a schematic structural diagram of a sampling device for measuring a gas-liquid ratio in a gas-liquid mixed fluid according to an embodiment of the utility model.
FIG. 2 is a schematic structural diagram of a sampling device for measuring a gas-liquid ratio in a gas-liquid mixed fluid according to an embodiment of the present invention when a bottom cover is opened.
FIG. 3 is a schematic diagram of a sampling device for measuring a gas-liquid ratio in a gas-liquid mixed fluid according to an embodiment of the present invention; wherein (a) is a top view of the sampling device sampling in the liquid to be tested; (b) is a schematic diagram of the sampling device after sampling is completed; (c) the top view of the sampling device when the sampling container is separated from the fixing ring; (d) the relative position of the sampling container of the sampling device when the sampling container is separated from the fixing ring is shown schematically.
FIG. 4 is a schematic diagram of a sampling and measurement process of an embodiment of the present invention; wherein, (a) the sampling initial state diagram of the sampling device, (b) is the schematic diagram of the sampling device in the sampling process, (c) is the schematic diagram of collecting liquid and closing the bottom cover, and (d) is the schematic diagram of keeping the sampling device still on the platform.
The reference numerals include:
1-sampling container, 1 a-sample storage part, 1 b-metering part, 1 c-gas release part, 2-pull rope, 3-spring, 4-bottom cover, 5-rotating shaft, 6-floater, 7-sampling liquid level mark, 8-fixing ring, 8 a-gap, 9-connecting rod, 10-connecting point, 11-liquid to be extracted, 12-control rope, 13-gas-liquid mixture and 14-radial connecting rod.
Detailed Description
Preferred embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
As shown in fig. 1 to 4, a sampling device for measuring a gas-liquid ratio in a gas-liquid mixed fluid comprises a sampling container 1, a sampling member and an auxiliary member, wherein the sampling container 1 comprises an air release part 1c positioned at an upper part, a metering part 1b positioned at a neck part and a sample storage part 1a positioned at a lower part, and the sample storage part 1a is a container body. The outer diameter of the air release part 1c is larger than that of the metering part 1 b; wherein, the gas release part 1c is open. The metering portion 1b of the neck of the container is cylindrical and has a scale on its wall. The bottom of the sampling container 1 is provided with an opening, one side of the opening is rotatably connected with a bottom cover 4 through a rotating shaft 5, and the bottom cover 4 is matched with the opening in size. The sampling component comprises a pull rope 2, one end of the pull rope 2 is connected with a bottom cover 4, and the other end of the pull rope 2 penetrates through the interior of the sampling container 1, penetrates out of an air release part 1c of the sampling container 1 and extends outwards. The outer side of the sampling container 1 is provided with a spring 3, one end of the spring 3 is connected with the outer side wall of the sampling container 1, and the other end is connected with the bottom of the bottom cover 4. In this embodiment, the sampling volume is 1L because the volume of the sample reservoir 1a, which is the container main body, is 750ml and the volume of the gas release portion 1c, which is the neck portion of the sampling container 1, is 250 ml. The gas release portion 1c is a circular funnel-type structure for releasing gas. The metering section 1b is cylindrical and 5cm in diameter, and has graduations on the wall in ml, with a minimum graduation interval of 2 ml.
The auxiliary members comprise a number of floats 6 and a fixing ring 8 in the middle for fixing the sampling container 1. Including the floater 6 of three cube in this embodiment, solid fixed ring 8 is located the centre of three floater 6, and three floater 6 is connected through a radial connecting rod 14 and solid fixed ring 8 respectively, and solid fixed ring 8 is the ring of 8a of taking the breach, except that breach 8a side, connects through connecting rod 9 between the adjacent floater 6, and constitutes equilateral triangle at the coplanar, and floater 6, connecting rod 9, radial connecting rod 14 and solid fixed ring 8 stabilize at the coplanar. The notches 8a face the missing side of the equilateral triangle. The opening width of the notch 8a is larger than the diameter of the neck of the sampling container, i.e., the metering portion 1 b. The diameter of the fixing ring 8 is between the diameter of the neck of the sampling container and the maximum diameter of the air release part 1c, before sampling, the sampling container 1 is placed into the middle part of the fixing ring 8 from the notch 8a of the neck, and the fixing ring 8 is contacted with the outer wall of the air release part 1c under the action of gravity, so that the fixing ring 8 bears the sampling container 1, and the sampling container 1 is kept vertical and perpendicular to the plane of the floating object 6. After sampling, the sampling vessel 1 is lifted up, and then the fixing ring 8 is separated from the sampling vessel 1 by the notch 8 a.
The float 6 is provided with a sampling level mark 7, and when the float 6 is loaded with the sampling container 1 through the fixing ring 8, the sampling level mark 7 is kept flush with the neck of the sampling container 1, that is, the upper scale starting point of the metering portion 1 b. The floater 6 is provided with a connecting point 10 tied with three control ropes 12 with equal length, thereby realizing the control of the position of the whole sampling device.
As shown in fig. 3 and 4, the sampling and measuring process is divided into four steps:
the first step is as follows: the control rope 12 is manually held, the pull rope 2 is in a loose state at the moment, the spring 3 is in a natural state, the bottom cover 4 of the sampling container 1 naturally hangs down to 180 degrees, and the container is completely opened. The sampling container 1 is sleeved in the fixing ring 8, and the sampling container 1, the fixing ring 8 and the floater 6 are put into the liquid 11 to be extracted. The gas-liquid mixture 13 starts to freely enter the sample storage portion 1a, which is the main body of the sampling vessel 1.
The second step is that: by operating the control line 12, the level of the sampled marking on the float 6 is kept flush with the level of the contact area.
The third step: the pulling rope 2 is continuously pulled so that the bottom cap 4 connected thereto starts rotating at a slower speed against the resistance of the spring 3, gradually approaches the bottom opening of the container body and finally closes and forms a seal therewith. The pull rope 2 is kept in a tight state, and the spring 3 is correspondingly in a stretching state. The sampling device is then lifted out of the liquid 11 to be taken by means of the control cord 12.
The fourth step: the sampling container 1 is separated from the fixing ring 8 by the notch 8a, and after the float 6 is released, the sampling container 1 is left on the platform. The gas in the sample rises at the neck of the sampling vessel 1 and then escapes from the sample through the gas release portion 1 c. After the liquid level in the container is stabilized, the scale change of the metering part 1b at the neck of the container is read to obtain a volume change value, which is delta V in figure 1, namely the volume of the gas in the sample, namely Vg [ ml ]. And adopting Vg:1000 to calculate the gas-liquid ratio of the contact area obtained by measurement.
The above-mentioned embodiments are preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, and the equivalent changes in shape and structure according to the present invention are within the protection scope of the present invention.
Claims (10)
1. A sampling device for measuring gas-liquid ratio in gas-liquid mixed fluid is characterized in that: the sampling container comprises an air release part positioned at the upper part, a metering part positioned at the neck part and a sample storage part positioned at the lower part; the outer diameter of the air release part is larger than that of the metering part;
the bottom of the sampling container is provided with an opening, one side of the opening is connected with a bottom cover, and the size of the bottom cover is not smaller than that of the opening;
the sampling component comprises a pulling connecting piece connected with the bottom cover, and one end of the pulling connecting piece penetrates through the sampling container and penetrates out of the air release part of the sampling container;
the auxiliary member comprises a float and a lifting member for floating the sampling container on the liquid, the float being connected to the lifting member.
2. The sampling device for measuring a gas-liquid ratio in a gas-liquid mixed fluid according to claim 1, wherein: the lifting member comprises a fixing ring which is positioned in the middle of the floating object and used for fixing the sampling container, the fixing ring is provided with a gap, the opening width of the gap is larger than the diameter of the neck of the sampling container, and the inner diameter of the fixing ring is not larger than the maximum outer diameter of the air release part and is not smaller than the diameter of the neck of the sampling container; the floater is a plurality of, interconnect between the adjacent floater, the floater is connected with solid fixed ring.
3. The sampling device for measuring a gas-liquid ratio in a gas-liquid mixed fluid according to claim 2, wherein: the sampling member includes a bottom cap opening member for separating the bottom cap from the opening, and the pull connector is a pull cord.
4. A sampling device for measuring a gas-liquid ratio in a gas-liquid mixed fluid according to claim 3, wherein: the bottom cover is connected or hinged with the sampling container through a rotating shaft; the bottom cover opening member comprises an elastic member positioned outside the sampling container, one end of the elastic member is connected with the outer side wall of the sampling container, and the other end of the elastic member is connected with the bottom of the bottom cover.
5. The sampling device for measuring a gas-liquid ratio in a gas-liquid mixed fluid according to claim 2, wherein: except the fixed ring gap side, the adjacent floaters are connected through a connecting piece.
6. The sampling device for measuring a gas-liquid ratio in a gas-liquid mixed fluid according to claim 5, wherein: the floater is connected through the connecting rod and forms symmetrical shape, all be equipped with sample liquid level mark on the floater.
7. The sampling device for measuring a gas-liquid ratio in a gas-liquid mixed fluid according to claim 6, wherein: the floater is connected with the fixed ring through a radial connecting piece, and the radial connecting piece, the connecting piece and the fixed ring are positioned on the same plane.
8. The sampling device for measuring a gas-liquid ratio in a gas-liquid mixed fluid according to claim 2, wherein: the sampling container comprises a sealing component for sealing a bottom cover and an opening, wherein the sealing component is positioned on the periphery of the upper surface of the bottom cover or the bottom of the sampling container and positioned on the periphery of the opening.
9. The sampling device for measuring a gas-liquid ratio in a gas-liquid mixed fluid according to any one of claims 1 to 8, wherein: the air release part is funnel-shaped.
10. The sampling device for measuring a gas-liquid ratio in a gas-liquid mixed fluid according to claim 9, wherein: the neck cross-section of sample container is circular, the neck of sample container is equipped with the scale value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121985690.2U CN215727014U (en) | 2021-08-23 | 2021-08-23 | Sampling device for measuring gas-liquid ratio in gas-liquid mixed fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121985690.2U CN215727014U (en) | 2021-08-23 | 2021-08-23 | Sampling device for measuring gas-liquid ratio in gas-liquid mixed fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215727014U true CN215727014U (en) | 2022-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121985690.2U Active CN215727014U (en) | 2021-08-23 | 2021-08-23 | Sampling device for measuring gas-liquid ratio in gas-liquid mixed fluid |
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| CN (1) | CN215727014U (en) |
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2021
- 2021-08-23 CN CN202121985690.2U patent/CN215727014U/en active Active
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Address after: 200000 room 2313, 23 / F, No. 1018, Moyu South Road, Anting Town, Jiading District, Shanghai Patentee after: Baizhong Environmental Technology (Shanghai) Co.,Ltd. Patentee after: Berlin water environment Hong Kong Limited Address before: 200000 room 2313, 23 / F, No. 1018, Moyu South Road, Anting Town, Jiading District, Shanghai Patentee before: BESINO ENVIRONMENTAL TECHNOLOGY (SHANGHAI) Co.,Ltd. Patentee before: Berlin water environment Hong Kong Limited |
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