CN209841596U - Device for measuring gas production rate of chemical reaction based on image recognition method - Google Patents
Device for measuring gas production rate of chemical reaction based on image recognition method Download PDFInfo
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- CN209841596U CN209841596U CN201920234342.8U CN201920234342U CN209841596U CN 209841596 U CN209841596 U CN 209841596U CN 201920234342 U CN201920234342 U CN 201920234342U CN 209841596 U CN209841596 U CN 209841596U
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- liquid storage
- flat container
- reaction
- chemical reaction
- image recognition
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Abstract
The utility model discloses a device for measuring chemical reaction gas production rate based on image recognition method, which comprises a liquid storage tank, a reaction cavity, an image acquisition and processing device and a connecting pipeline, wherein 2 liquid storage tanks are provided, the pipeline at the lower end of the liquid storage tank is connected with a water inlet through a micro pump b after being connected in parallel, the water inlet is connected with the lower end of the reaction cavity, the upper end of the reaction cavity is connected with the lower end of a flat container, the upper end of the flat container is a water outlet, and the water outlet is respectively connected with the upper ends of the 2 liquid storage; image acquisition processing apparatus includes camera and computer, makes a video recording towards flat container openly sets up, just the computer is connected to the camera for gather the bubble image in the flat container, calculate the bubble radius R in the unit area through image identification, thereby calculate and produce the gas volume, obtain this chemical reaction rate constantly, the utility model relates to a device and method easy operation, be convenient for observe, and can the gas rate of real-time measurement chemical reaction.
Description
Technical Field
The utility model belongs to the technical field of flow measurement, especially, relate to a device based on gas rate is produced in image recognition method measurement chemical reaction.
Background
Chemical reaction rates, including gas production rates from chemical reactions, are one of the most significant pieces of information in chemical experiments. However, most of the prior art cannot directly measure the gas production rate of the chemical reaction, and generally, the average rate is obtained by dividing the change of the quantity and concentration of a certain substance by the time; at present, methods such as a chemical method, a physical method, a flow method, a rapid reaction research and the like exist; the chemical method is a method (volumetric method or gravimetric method) for measuring the quantity and concentration of substances at different time by using a chemical analysis method, but has the defects of low analysis speed, complicated experimental operation and large error; the physical method is to obtain some data of in-situ reaction by measuring the change of some physical properties of the mixed system (reactants and products) related to concentration along with time in the reaction process, thereby obtaining a kinetic curve. It does not directly give a relationship between the quantity concentration of a substance and time; the flow method is a method in which a gas or liquid mixture is passed at a certain flow rate (V) through a container at a constant temperature (T) and of known volume (V), but with less accuracy (this flow technique is often used in industry); the research of the rapid reaction comprises two methods of improving the analysis and detection speed and changing the time variable into other variables through a specific device, and the actual operation difficulty is higher; there is still a lack of an instrument capable of measuring the gas production rate of a chemical reaction in real time.
SUMMERY OF THE UTILITY MODEL
The utility model discloses according to the problem that exists among the prior art, provided and measured the device that the gas rate was produced in chemical reaction based on image recognition method, aim at provides an easy operation, is convenient for observe, and can produce the gas rate in real-time measurement chemical reaction.
The utility model discloses the technical scheme who adopts as follows:
the device for measuring the gas production rate of the chemical reaction based on the image recognition method comprises a liquid storage tank, a reaction cavity, an image acquisition and processing device and a connecting pipeline; the device comprises 2 liquid storage tanks, wherein pipelines at the lower ends of the 2 liquid storage tanks are connected in parallel and then are connected with a water inlet through a micro pump b, the water inlet is connected with the lower end of a reaction cavity, the upper end of the reaction cavity is connected with the lower end of a flat container, the upper end of the flat container is a water outlet, and the water outlet is respectively connected with the upper ends of the 2 liquid storage tanks through a micro pump a;
the image acquisition and processing device comprises a camera and a computer, the camera is arranged towards the front of the flat container and is connected with the computer for acquiring an image of the bubbles in the flat container and calculating the radius R of the bubbles in unit area through image identification,
furthermore, the 2 liquid storage tanks are communicated through a pipeline, and a valve c is arranged on the pipeline; the communication among 2 liquid storage tanks can be realized;
further, a liquid discharge pipe is arranged at the bottom of each liquid storage tank, and a valve is arranged on each liquid discharge pipe and used for controlling the opening and closing of each liquid discharge pipe;
furthermore, light supplement lamps are arranged on two sides of the flat container and are used for enhancing the image recognition effect and facilitating observation of an observer;
further, the computer is respectively connected with the micro pump a and the micro pump b and controls the rotating speed of the micro pump a and the micro pump b, so that the flow of the reaction liquid is controlled, and the reaction rate is controlled;
a method for measuring gas production rate of chemical reaction based on an image recognition method comprises the steps of inputting reaction liquid in a liquid storage tank into a reaction cavity, collecting gas bubble images in real time through a camera and inputting the gas bubble images into a computer after reaction in the reaction cavity, measuring and calculating the radius R of the gas bubble in unit area through image recognition, and accordingly measuring and calculating the volume of the generated gas and obtaining the chemical reaction rate at the moment.
Further, the calculation method of the gas volume comprises the following steps: v ═ pi R2h, wherein h is the thickness of the flat container.
The utility model has the advantages that:
the solid particles can be freely placed in the reaction cavity of the utility model, and the particles can be uniformly concentrated by adopting the inverted trapezoid shape; the flat container is small in thickness and high in transparency, so that an observer can conveniently and directly observe the condition of generated bubbles, the image recognition is facilitated, the volume of the reaction gas is accurately calculated, the reaction rate is further calculated, and the light supplement lamps are arranged on the two sides of the flat container, so that the brightness of the bubbles is increased, the observation of the observer is facilitated, and the image recognition is also facilitated; the liquid storage tanks are detachable and easy to clean, the two liquid storage tanks are connected through the drainage tube and the valve, so that solutions on two sides can be communicated with each other to form a circulating system, and the drainage tube is arranged at the bottom of each liquid storage tank to facilitate the drainage of waste liquid.
Drawings
Fig. 1 is a front view of the device of the present invention;
fig. 2 is a rear view of the inventive apparatus;
fig. 3 is a right side view of the inventive apparatus;
in the figure, the device comprises a hanging plate 1, a hanging plate 2, a flat container 3, a reaction cavity 4, a water inlet 5, a water outlet 6, a light supplement lamp 7, a fine adjustment knob 8, a drainage tube 9, micropumps a and 10, valves a and 11, valves b and 13, valves c and 14, valves d and 15, valves e and 16, valves f and 17, valves g and 12, a liquid storage tank a and 18, micropumps b and 19, a camera, 20, a computer 21 and a liquid storage tank b.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
As shown in figures 1 and 2, the utility model provides a device for measuring gas production rate of chemical reaction based on image recognition method, set up from top to bottom on the hanging plate 1 of rectangle openly and set up flat container 2, flat container 2 is the hexagon space of thickness h and adopts transparent material, connect reaction cavity 3 in the bottom of flat container 2, reaction cavity 3 in the utility model adopts the down-trapezoidal, reaction cavity 3 can be opened, can add the solid particulate matter of reaction (such as zinc grain) into reaction cavity 3, liquid storage pot a12 and liquid storage pot b21 installed behind the hanging plate 1 are connected through the pipeline to reaction cavity 3's bottom for depositing reaction liquid (such as dilute sulfuric acid), set up valve g17 on the inlet tube of being connected with liquid storage pot a12, set up valve f16 on the inlet tube of being connected with liquid storage pot b21, and communicate through the pipeline between liquid storage pot a12 and the liquid storage pot b21, and a valve c13 is arranged on the pipeline; the communication among 2 liquid storage tanks can be realized; the bottom of each liquid storage tank is respectively provided with a liquid discharge pipe, and the liquid discharge pipe is respectively provided with a valve d14 and a valve e 15; the top parts of the liquid storage tanks a12 and b21 are water outlet pipelines, the pipelines are provided with a micro pump a9, and the micro pump a9 is connected with the flat container 2 through a water outlet 5; light filling lamps 6 can be arranged on the hanging plates 1 on the left side and the right side of the flat container 2, so that the image recognition effect is enhanced, and observation by an observer is facilitated.
As shown in fig. 3, a camera 19 is provided directly in front of the flat container 2, and the camera 19 is connected to a computer 20 for acquiring an image of the air bubbles in the flat container 2 and measuring the radius R of the air bubbles per unit area by image recognition in the computer 20.
According to the device that provides, the utility model also provides a method for gas rate is produced in chemical reaction based on image recognition method measurement, with reaction liquid input reaction cavity 3 in the liquid storage tank, the bubble that produces in the reaction cavity 3 after the reaction, through camera 19 gather the bubble image in real time and input in computer 20, calculate the bubble radius R in the unit area through image recognition to the calculation produces the gas volume, obtains this chemical reaction rate constantly. The calculation method of the gas volume comprises the following steps: v ═ pi R2h, wherein h is the thickness of the flat container 2.
For a more clear explanation of the technical solution protected by the present invention, the following is further explained in conjunction with the working process of the present invention:
adding reaction liquid into a liquid storage tank a12, respectively connecting a micropump a9 and a micropump b18 with a computer, aligning a high-definition digital camera 19 with the flat container 2, connecting the computer, turning on a light supplement lamp 6, and turning on the light supplement lampReaction particles are filled in the reaction cavity 3, a valve g17 and a valve a10 are sequentially opened, the flow rate of the reaction liquid is controlled by adjusting a micropump a9 and a micropump b18, and when the reaction liquid enters the reaction cavity 3 for reaction, the thickness of the flat container 2 can be adjusted by a fine adjustment knob 7; the gas generated in the narrow flat container 2 presents a small cylindrical cavity body, and the area pi R of the cross-section circle of the cylinder in unit area is measured and calculated by the image recognition technology2The thickness h of the flat container 2 is input on the computer, and the volume of such a bubble is π R2h, measuring the radius R of the bubble in unit area1、R2、R3… …, adding the volumes of the bubbles to calculate the volume of the generated gas, and further obtaining the chemical reaction rate at the moment; and (3) measuring the instant reaction rate in real time, opening the valve d14 and the valve e15 to discharge waste liquid after the reaction is finished, (or removing and cleaning the liquid storage tank 12), and pouring out reaction residues in the reaction cavity 3.
In the working process of the device designed by the utility model, the valve c13 can be opened, and the reaction liquid entering the liquid storage tank b21 after the reaction can be input into the liquid storage tank a12 again to continue to participate in the reaction.
The above embodiments are only used for illustrating the design ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, and the protection scope of the present invention is not limited to the above embodiments. Therefore, all the equivalent changes or modifications made according to the principles and design ideas disclosed by the present invention are within the protection scope of the present invention.
Claims (5)
1. The device for measuring the gas production rate of the chemical reaction based on the image recognition method is characterized by comprising a liquid storage tank, a reaction cavity (3), an image acquisition and processing device and a connecting pipeline; the device comprises two liquid storage tanks, wherein 2 liquid storage tanks are arranged, pipelines at the lower ends of the 2 liquid storage tanks are connected in parallel and then are connected with a water inlet (4) through a micro pump b (18), the water inlet (4) is connected with the lower end of a reaction cavity (3), the upper end of the reaction cavity (3) is connected with the lower end of a flat container (2), the upper end of the flat container (2) is provided with a water outlet (5), and the water outlet (5) is respectively connected with the upper ends of the 2 liquid storage tanks through a micro pump a (9);
the image acquisition processing device comprises a camera (19) and a computer, wherein the camera (19) is arranged towards the front of the flat container (2), the camera (19) is connected with the computer (20) and is used for acquiring an air bubble image in the flat container (2) and measuring the radius R of the air bubble in a unit area through image identification.
2. The device for measuring the gas production rate of the chemical reaction based on the image recognition method as claimed in claim 1, wherein the 2 liquid storage tanks are communicated with each other through a pipeline, and a valve c (13) is arranged on the pipeline; the communication between 2 liquid storage tanks can be realized.
3. The apparatus for measuring the gas production rate of chemical reactions according to claim 1, wherein a drain pipe is provided at the bottom of each liquid storage tank, and a valve is provided on the drain pipe for controlling the opening and closing of the drain pipe.
4. The device for measuring the gas production rate of the chemical reaction based on the image recognition method according to claim 1, wherein light supplement lamps (6) are arranged on two sides of the flat container (2) for enhancing the image recognition effect and facilitating the observation of an observer.
5. The device for measuring the gas production rate of the chemical reaction based on the image recognition method according to claim 1, wherein the computer (20) is respectively connected with the micro pump a (9) and the micro pump b (18) and controls the rotation speed of the micro pump a (9) and the micro pump b (18) so as to control the flow rate of the reaction liquid and control the reaction rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920234342.8U CN209841596U (en) | 2019-02-25 | 2019-02-25 | Device for measuring gas production rate of chemical reaction based on image recognition method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920234342.8U CN209841596U (en) | 2019-02-25 | 2019-02-25 | Device for measuring gas production rate of chemical reaction based on image recognition method |
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| Publication Number | Publication Date |
|---|---|
| CN209841596U true CN209841596U (en) | 2019-12-24 |
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| CN201920234342.8U Expired - Fee Related CN209841596U (en) | 2019-02-25 | 2019-02-25 | Device for measuring gas production rate of chemical reaction based on image recognition method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813627A (en) * | 2019-02-25 | 2019-05-28 | 江苏大学 | The apparatus and method of chemical reaction gas production rate are measured based on image recognition method |
-
2019
- 2019-02-25 CN CN201920234342.8U patent/CN209841596U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813627A (en) * | 2019-02-25 | 2019-05-28 | 江苏大学 | The apparatus and method of chemical reaction gas production rate are measured based on image recognition method |
| CN109813627B (en) * | 2019-02-25 | 2024-04-09 | 江苏大学 | Device and method for measuring gas production rate of chemical reaction based on image recognition method |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191224 |