A volume calibration detection device and a detection method

Abstract

The present application belongs to the technical field of volume calibration detection, and discloses a volume calibration detection device and a detection method. The volume calibration detection device comprises a weight detection assembly, a liquid adding assembly and a liquid level detection assembly. The weight detection assembly is used for bearing a to-be-detected container, and is used for detecting the weight of the to-be-detected container in real time to obtain the weight change amount of the to-be-detected container. The liquid adding assembly comprises a liquid storage tank, a liquid adding pipeline and a water pump. The inlet of the liquid adding pipeline can be communicated with the liquid storage tank, the outlet of the liquid adding pipeline can be communicated with the to-be-detected container, and the water pump is arranged on the liquid adding pipeline. The liquid level detection assembly comprises a transparent liquid level display. Both the transparent liquid level display and the to-be-detected container are open containers. A liquid level scale is arranged on the transparent liquid level display, and the bottom end of the transparent liquid level display is communicated with the bottom end of the to-be-detected container. The volume calibration detection device can accurately and efficiently detect whether the volume calibration of the to-be-detected container at different liquid levels meets the design requirements.

Description

Technical Field

[0001] This invention relates to the field of volume calibration and testing technology, and in particular to a volume calibration and testing device and method. Background Technology

[0002] In related technologies, volume calibration and testing devices typically replenish the container under test with liquid through a filling pipeline and place the container on an electronic scale. The scale measures the weight of the container in real time, while sensors monitor the liquid level in real time. This allows for the determination of whether the volume calibration at different liquid levels meets design requirements. However, real-time detection of the liquid level by sensors suffers from a delay due to the filtering algorithm used in the sensors. This results in slow response times and compromises the accuracy of liquid level detection, failing to meet the demands for high-precision and high-efficiency volume calibration and testing.

[0003] Therefore, there is an urgent need for a volume calibration and testing device and method to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a volume calibration testing device and method to accurately and efficiently detect whether the volume calibration of the container under test at different liquid levels meets the design requirements.

[0005] To achieve this objective, the present invention adopts the following technical solution: A volume calibration and testing device, comprising: A weight detection component, the weight detection component being used to carry a container to be tested, the weight detection component being configured to detect the weight of the container to be tested in real time, so as to obtain the amount of weight change of the container to be tested; A liquid filling assembly includes a liquid storage tank, a liquid filling pipeline, and a water pump. The inlet of the liquid filling pipeline is connected to the liquid storage tank, and the outlet of the liquid filling pipeline is connected to the container to be tested. The water pump is installed on the liquid filling pipeline. A liquid level detection component includes a transparent liquid level display. Both the transparent liquid level display and the container to be detected are open containers. The transparent liquid level display is provided with liquid level scales, and the bottom end of the transparent liquid level display is connected to the bottom end of the container to be detected.

[0006] As an optional solution, the liquid level detection component further includes a connecting pipe located at the bottom of both the transparent liquid level display and the container to be detected, and the bottom end of the transparent liquid level display is connected to the bottom end of the container to be detected through the connecting pipe.

[0007] As an optional solution, the liquid addition assembly further includes: A flow regulating valve is provided on the liquid filling line, and the flow regulating valve is configured to regulate the flow rate in the liquid filling line; A flow meter is installed on the liquid filling line and is configured to detect the flow rate in the liquid filling line.

[0008] As an optional solution, the liquid addition assembly further includes: A first valve is installed at the inlet of the liquid filling pipeline so that the inlet of the liquid filling pipeline is connected to the liquid storage tank through the first valve; A second valve is installed at the outlet of the liquid filling pipeline so that the outlet of the liquid filling pipeline is connected to the container to be tested through the second valve.

[0009] As an optional solution, the volume calibration and testing device further includes a liquid extraction component, the inlet of which can be connected to the container to be tested, and the outlet of which can be connected to the liquid storage tank.

[0010] As an optional solution, the liquid extraction assembly includes: The first liquid extraction pipeline has an inlet connected to the outlet of the liquid addition pipeline, and an outlet connected to the inlet of the liquid addition pipeline. Along the flow direction of the liquid in the liquid addition pipeline, the connection between the inlet of the first liquid extraction pipeline and the liquid addition pipeline is located downstream of the second valve, and the connection between the outlet of the first liquid extraction pipeline and the liquid addition pipeline is located downstream of the first valve. The third valve is installed on the first liquid extraction pipeline; The second liquid extraction pipeline has its inlet connected to the outlet of the liquid addition pipeline, and its outlet connected to the liquid storage tank. Along the flow direction of the liquid in the liquid addition pipeline, the connection between the inlet of the second liquid extraction pipeline and the liquid addition pipeline is located upstream of the second valve. The fourth valve is located on the second liquid extraction pipeline.

[0011] As an optional solution, the volume calibration and testing device further includes a liquid replenishment component, the outlet of which is connected to the liquid filling pipeline, and the connection between the outlet of the liquid replenishment component and the liquid filling pipeline is located between the storage tank and the water pump.

[0012] As an optional solution, the fluid replenishment component includes: Infusion funnel; A replenishment pipeline, wherein the inlet of the replenishment pipeline is connected to the replenishment funnel, the outlet of the replenishment pipeline is connected to the addition pipeline, and the connection between the outlet of the replenishment pipeline and the addition pipeline is located between the storage tank and the water pump; The fifth valve is located on the replenishment pipeline.

[0013] As an optional solution, the volume calibration and detection device further includes a data processing component, which includes a data acquisition unit and a processor connected in communication. The data acquisition unit is configured to acquire the detection value of the weight detection component, and the processor is configured to obtain the volume of the container to be tested based on the detection value of the weight detection component acquired by the data acquisition unit and the density of the liquid in the container to be tested.

[0014] A volume calibration and testing method, applied to the volume calibration and testing device described above, the volume calibration and testing method comprising the following steps: The liquid filling assembly replenishes the container to be tested with liquid; The weight of the container to be tested is detected in real time by the weight detection component to obtain the weight change of the container to be tested. The volume change in the container to be tested is obtained based on the density of the liquid in the container to be tested and the weight change of the container to be tested. The volume change in the container under test is verified by the liquid level displayed on the transparent liquid level indicator.

[0015] The beneficial effects of this invention are: The volume calibration and testing device provided by this invention includes a weight detection component, a liquid filling component, and a liquid level detection component. The weight detection component is used to support the container to be tested and to detect the weight of the container to be tested in real time to obtain the weight change of the container. The liquid filling component includes a liquid storage tank, a liquid filling pipeline, and a water pump. The inlet of the liquid filling pipeline can be connected to the liquid storage tank, and the outlet of the liquid filling pipeline can be connected to the container to be tested. The water pump is installed on the liquid filling pipeline. The liquid level detection component includes a transparent liquid level display. Both the transparent liquid level display and the container to be tested are open containers. The transparent liquid level display is provided with a liquid level scale, and the bottom end of the transparent liquid level display is connected to the bottom end of the container to be tested. The volume calibration and testing device provided by this invention, under the action of a water pump, allows liquid in the storage tank to be introduced into the container to be tested through the liquid filling pipeline. The weight of the container to be tested is detected in real time by a weight detection component to obtain the weight change of the container to be tested. Based on the density of the liquid in the container to be tested and the obtained weight change of the container to be tested, the volume change of the container to be tested is obtained. The volume change of the container to be tested is verified by the liquid level displayed on the transparent liquid level display, thereby verifying whether the volume calibration of the container to be tested at different liquid levels meets the design requirements. Furthermore, by using a transparent liquid level indicator with liquid level graduations to detect the liquid in the container under test, and because the bottom of the transparent liquid level indicator is connected to the bottom of the container under test, and both the transparent liquid level indicator and the container under test are open containers, it is ensured that the transparent liquid level indicator and the container under test are under the same atmospheric pressure. This effectively ensures the detection accuracy of the transparent liquid level indicator in the container under test, and the detection is delayless, and can display the corresponding liquid level in real time, improving the response speed. Thus, it can accurately and efficiently detect whether the volume calibration of the container under test at different liquid levels meets the design requirements.

[0016] This invention also provides a volume calibration detection method. This method replenishes the container under test with liquid using a liquid adding component, detects the weight of the container under test in real time using a weight detection component to obtain the weight change of the container under test, then obtains the volume change of the container under test based on the density of the liquid in the container under test and the obtained weight change of the container under test, and finally verifies the volume change of the container under test based on the liquid level displayed on a transparent liquid level display. This method can accurately and efficiently detect whether the volume calibration of the container under test at different liquid levels meets the design requirements. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the volume calibration and detection device provided in this embodiment of the invention performing detection during the liquid addition process; Figure 2 This is a schematic diagram of the volume calibration and detection device provided in this embodiment of the invention performing detection during the liquid extraction process; Figure 3 This is a flowchart of the volume calibration and detection method provided in the embodiments of the present invention.

[0018] In the picture: 20. Container to be tested; 1. Weight detection component; 2. Liquid filling assembly; 21. Liquid storage tank; 22. Liquid filling pipeline; 23. Water pump; 24. Flow regulating valve; 25. Flow meter; 26. First valve; 27. Second valve; 3. Liquid level detection component; 31. Transparent liquid level indicator; 32. Connecting pipe; 4. Liquid extraction assembly; 41. First liquid extraction line; 42. Third valve; 43. Second liquid extraction line; 44. Fourth valve; 5. Liquid replenishment assembly; 51. Liquid replenishment funnel; 52. Liquid replenishment pipeline; 53. Fifth valve; 6. Data processing components; 61. Data acquisition unit; 62. Processor. Detailed Implementation

[0019] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0020] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0021] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] In related technologies, volume calibration and testing devices typically replenish the container under test with liquid through a filling pipeline and place the container on an electronic scale. The scale measures the weight of the container in real time, while sensors monitor the liquid level in real time. This allows for the determination of whether the volume calibration at different liquid levels meets design requirements. However, real-time detection of the liquid level by sensors suffers from a delay due to the filtering algorithm used in the sensors. This results in slow response times and compromises the accuracy of liquid level detection, failing to meet the demands for high-precision and high-efficiency volume calibration and testing.

[0024] To solve the above problems, such as Figure 1 As shown, this embodiment provides a volume calibration and testing device, which includes a weight detection component 1, a liquid filling component 2, and a liquid level detection component 3. The weight detection component 1 carries the container 20 to be tested and is used to detect the weight of the container 20 in real time to obtain the weight change of the container 20. The liquid filling component 2 includes a storage tank 21, a liquid filling pipeline 22, and a water pump 23. The inlet of the liquid filling pipeline 22 is connected to the storage tank 21, and the outlet of the liquid filling pipeline 22 is connected to the container 20 to be tested. The water pump 23 is installed on the liquid filling pipeline 22. The liquid level detection component 3 includes a transparent liquid level display 31. Both the transparent liquid level display 31 and the container 20 to be tested are open containers. The transparent liquid level display 31 has a liquid level scale, and its bottom end is connected to the bottom end of the container 20 to be tested. The volume calibration and testing device provided in this embodiment, under the action of the water pump 23, refers to... Figure 1As indicated by the arrow, the liquid filling line 22 can introduce liquid from the storage tank 21 into the container 20 to be tested. The weight of the container 20 to be tested is detected in real time by the weight detection component 1 to obtain the weight change of the container 20. Based on the density of the liquid in the container 20 and the obtained weight change of the container 20, the volume change of the container 20 is obtained. The volume change of the container 20 is verified by the liquid level displayed on the transparent liquid level display 31, thereby verifying whether the volume calibration of the container 20 at different liquid levels meets the design requirements. Furthermore, the liquid in the container 20 is detected by using a transparent liquid level display 31 with liquid level scale. Since the bottom of the transparent liquid level display 31 is connected to the bottom of the container 20, and both the transparent liquid level display 31 and the container 20 are open containers, it is ensured that the transparent liquid level display 31 and the container 20 are under the same atmospheric pressure. This effectively ensures the detection accuracy of the liquid level in the container 20 by the transparent liquid level display 31, and the detection is delay-free, displaying the corresponding liquid level in real time, thus improving the response speed. This allows for accurate and efficient detection of whether the volume calibration of the container 20 at different liquid levels meets the design requirements. Optionally, in this embodiment, the weight detection component 1 is an electronic scale, which has the advantages of high detection accuracy and easy installation.

[0025] It should be noted that, in this embodiment, a support can be added to the container 20 to support and fix it as needed, thereby simulating the actual use state of the container 20. It should also be noted that, when the weight detection component 1 detects the weight of the container 20, it can perform a tare operation to ensure that the detected value of the weight detection component 1 is the actual weight of the liquid in the container 20.

[0026] Optionally, such as Figure 1 As shown, the liquid level detection component 3 provided in this embodiment also includes a connecting pipe 32. The connecting pipe 32 is located at the bottom of both the transparent liquid level display 31 and the container 20 to be detected, and the bottom end of the transparent liquid level display 31 is connected to the bottom end of the container 20 to be detected through the connecting pipe 32. By setting the connecting pipe 32 to connect the bottom end of the transparent liquid level display 31 and the bottom end of the container 20 to be detected, the liquid level of the transparent liquid level display 31 is effectively guaranteed to be consistent with the liquid level of the container 20 to be detected, thus ensuring the detection accuracy of the liquid level of the container 20 to be detected. Optionally, in this embodiment, the connecting pipe 32 is a U-shaped pipe. In other embodiments, the connecting pipe 32 can be V-shaped, W-shaped, or wavy.

[0027] Optionally, in this embodiment, as Figure 1As shown, the liquid addition assembly 2 also includes a flow regulating valve 24 and a flow meter 25. The flow regulating valve 24 is installed on the liquid addition pipeline 22 and is used to regulate the flow rate in the liquid addition pipeline 22. The flow meter 25 is installed on the liquid addition pipeline 22 and is used to detect the flow rate in the liquid addition pipeline 22. By setting the flow regulating valve 24 and the flow meter 25, the opening degree of the flow regulating valve 24 can be adjusted based on the detection value of the flow meter 25, thereby accurately regulating the flow rate in the liquid addition pipeline 22. Furthermore, through the coordinated action of the flow meter 25 and the flow regulating valve 24, the amount of liquid added to the container 20 under test in the liquid addition pipeline 22 can be accurately controlled. Optionally, in this embodiment, the flow regulating valve 24 is an electronically controlled ball valve. This embodiment does not limit the specific form of the flow meter 25. Optionally, in this embodiment, along the flow direction of the liquid in the liquid filling pipeline 22, the water pump 23, the flow regulating valve 24, and the flow meter 25 are sequentially arranged on the liquid filling pipeline 22. By positioning the water pump 23 upstream of the flow regulating valve 24, the water pump 23 is brought as close as possible to the liquid storage tank 21, thereby effectively reducing the flow path between the water pump 23 and the liquid storage tank 21 and ensuring the reliability of the water pump 23's operation. Furthermore, by positioning the flow meter 25 downstream of the flow regulating valve 24, the flow meter 25 can more accurately detect the flow rate of the liquid in the liquid filling pipeline 22 after being regulated by the flow regulating valve 24, thereby accurately obtaining the flow rate of liquid added from the liquid filling pipeline 22 to the container 20 to be tested. In other embodiments, the specific installation order of the water pump 23, the flow regulating valve 24, and the flow meter 25 on the liquid filling pipeline 22 can be adjusted according to requirements.

[0028] In this embodiment, as Figure 1 As shown, the liquid filling assembly 2 also includes a first valve 26 and a second valve 27. The first valve 26 is located at the inlet of the liquid filling pipeline 22, allowing the inlet of the liquid filling pipeline 22 to communicate with the liquid storage tank 21. The second valve 27 is located at the outlet of the liquid filling pipeline 22, allowing the outlet of the liquid filling pipeline 22 to communicate with the container to be tested 20. The first valve 26 at the inlet of the liquid filling pipeline 22 facilitates the adjustment of the connection between the inlet of the liquid filling pipeline 22 and the liquid storage tank 21. The second valve 27 at the outlet of the liquid filling pipeline 22 facilitates the adjustment of the connection between the outlet of the liquid filling pipeline 22 and the container to be tested 20. Optionally, in this embodiment, both the first valve 26 and the second valve 27 are electromagnetic control valves.

[0029] In this embodiment, as Figure 2As shown, the volume calibration and testing device also includes a liquid extraction component 4. The inlet of the liquid extraction component 4 can be connected to the container 20 to be tested, and the outlet of the liquid extraction component 4 can be connected to the storage tank 21. By setting up the liquid extraction component 4, it is easy to extract the liquid in the container 20 to be tested back into the storage tank 21. This allows the volume calibration and testing device to verify whether the volume calibration of the container 20 at different liquid levels meets the design requirements not only during the liquid addition process, but also during the liquid extraction process, making the testing process more flexible. It should be noted that in this embodiment, through the synergistic action of the liquid addition component 2 and the liquid extraction component 4, the volume calibration of the container 20 at different liquid levels can also be verified during the liquid circulation process, achieving cyclic calibration and meeting the needs of automated operation.

[0030] In this embodiment, as Figure 2 As shown, the liquid extraction assembly 4 includes a first liquid extraction pipe 41, a third valve 42, a second liquid extraction pipe 43, and a fourth valve 44. The inlet of the first liquid extraction pipe 41 is connected to the outlet of the liquid filling pipe 22, and the outlet of the first liquid extraction pipe 41 is connected to the inlet of the liquid filling pipe 22. Along the flow direction of the liquid in the liquid filling pipe 22, the connection between the inlet of the first liquid extraction pipe 41 and the liquid filling pipe 22 is located downstream of the second valve 27. The outlet of the first liquid extraction pipe 41... The connection between the inlet and the liquid filling pipeline 22 is located downstream of the first valve 26. The third valve 42 is located on the first liquid extraction pipeline 41. The inlet of the second liquid extraction pipeline 43 is connected to the outlet of the liquid filling pipeline 22, and the outlet of the second liquid extraction pipeline 43 is connected to the storage tank 21. Along the flow direction of the liquid in the liquid filling pipeline 22, the connection between the inlet of the second liquid extraction pipeline 43 and the liquid filling pipeline 22 is located upstream of the second valve 27. The fourth valve 44 is located on the second liquid extraction pipeline 43. The above configuration refers to... Figure 1 As shown, when the liquid adding component 2 needs to add liquid to the container 20 to be tested, the water pump 23, the first valve 26, and the second valve 27 are turned on, and the third valve 42 and the fourth valve 44 are closed. Under the action of the water pump 23, the liquid in the storage tank 21 enters the liquid adding pipeline 22. In the liquid adding pipeline 22, it passes through the first valve 26, the water pump 23, the flow regulating valve 24, the flow meter 25, and the second valve 27 in sequence before entering the container 20 to be tested. Furthermore, through the synergistic action of the flow regulating valve 24 and the flow meter 25, the amount of liquid added to the container 20 to be tested by the liquid adding pipeline 22 can be precisely controlled. In addition, referring to... Figure 2As shown, when the liquid extraction assembly 4 needs to extract the liquid from the container 20 to be tested back into the storage tank 21, the water pump 23, the third valve 42, and the fourth valve 44 are turned on, and the first valve 26 and the second valve 27 are closed. Under the action of the water pump 23, the liquid in the container 20 to be tested enters the first extraction pipeline 41 through the outlet of the liquid filling pipeline 22. After passing through the third valve 42 in the first extraction pipeline 41, it enters the liquid filling pipeline 22. After passing through the water pump 23, the flow regulating valve 24, and the flow meter 25 in the liquid filling pipeline 22, it enters the second extraction pipeline 43. After passing through the fourth valve 44 in the second extraction pipeline 43, it enters the storage tank 21. Through the synergistic action of the flow regulating valve 24 and the flow meter 25, the amount of liquid extracted by the liquid extraction assembly 4 from the container 20 to be tested can be precisely controlled. The above configuration allows the liquid filling pipeline 22 and the liquid extraction assembly 4 to share a set of water pump 23, flow regulating valve 24 and flow meter 25, which not only simplifies the structure but also effectively reduces the testing cost of the volume calibration and testing device.

[0031] Optionally, in this embodiment, water pumps 23 and flow meters 25 with different ranges can be selected according to requirements, so as to meet the volume calibration and testing requirements of different containers 20 to be tested.

[0032] In this embodiment, as Figure 1 and Figure 2 As shown, the volume calibration and testing device also includes a liquid replenishment component 5. The outlet of the liquid replenishment component 5 is connected to the liquid filling pipeline 22, and the connection between the outlet of the liquid replenishment component 5 and the liquid filling pipeline 22 is located between the liquid storage tank 21 and the water pump 23. This arrangement allows liquid to be replenished between the liquid storage tank 21 and the water pump 23 when air is present in the circuit corresponding to the operation of the water pump 23. This prevents the water pump 23 from running dry and being damaged during initial startup, thus improving the protection of the water pump 23.

[0033] In this embodiment, as Figure 1 and Figure 2 As shown, the replenishment assembly 5 includes a replenishment funnel 51, a replenishment pipeline 52, and a fifth valve 53. The inlet of the replenishment pipeline 52 is connected to the replenishment funnel 51, and the outlet of the replenishment pipeline 52 is connected to the liquid addition pipeline 22. The connection between the outlet of the replenishment pipeline 52 and the liquid addition pipeline 22 is located between the storage tank 21 and the water pump 23. The fifth valve 53 is located on the replenishment pipeline 52. The replenishment funnel 51 facilitates the injection of liquid into the replenishment pipeline 52. Furthermore, the fifth valve 53 facilitates the adjustment of the flow of the replenishment pipeline 52. Optionally, in this embodiment, the fifth valve 53 is a manual check valve, allowing the operator to manually adjust the flow of the replenishment pipeline 52.

[0034] In this embodiment, as Figure 1 and Figure 2As shown, the volume calibration and detection device also includes a data processing component 6. The data processing component 6 includes a data acquisition unit 61 and a processor 62 connected via communication. The data acquisition unit 61 is connected to the weight detection component 1 and is configured to acquire the detection value of the weight detection component 1 and the liquid level displayed on the transparent liquid level display 31. The processor 62 is configured to obtain the volume of the container 20 to be tested based on the detection value of the weight detection component 1 acquired by the data acquisition unit 61 and the density of the liquid in the container 20. In this embodiment, the detection value of the weight detection component 1 can be directly transmitted to the data acquisition unit 61, and the liquid level displayed on the transparent liquid level display 31 can be manually entered into the data acquisition unit 61 after being manually read and recorded.

[0035] like Figure 3 As shown, this embodiment also provides a volume calibration detection method, which is applied to the volume calibration detection device described above. The volume calibration detection method includes the following steps: adding liquid to the container 20 to be tested through the liquid addition component 2; detecting the weight of the container 20 to be tested in real time through the weight detection component 1 to obtain the weight change of the container 20; obtaining the volume change of the container 20 based on the density of the liquid in the container 20 and the obtained weight change of the container 20; and verifying the volume change of the container 20 based on the liquid level displayed on the transparent liquid level display 31. The above volume calibration detection method can accurately and efficiently detect whether the volume calibration of the container 20 at different liquid levels meets the design requirements.

[0036] It should be noted that, in this embodiment, the specific operating steps for testing using the volume calibration and testing device are as follows: First, place the container 20 to be tested on the weight detection component 1. If necessary, fix the container 20 to be tested with a bracket to simulate the actual use state. Then, assemble the volume calibration and testing device, power on each component that needs to be powered, and ensure that each component can work normally. Next, perform a tare operation on the weight detection component 1, and set the test mode of the volume calibration and testing device (i.e., select verification during liquid addition, verification during liquid extraction, or verification during liquid circulation) and the parameters of each component. Finally, start the test.

[0037] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A volume calibration and testing device, characterized in that, include: Weight detection component (1), the weight detection component (1) is used to carry the container to be tested (20), the weight detection component (1) is configured to detect the weight of the container to be tested (20) in real time to obtain the weight change of the container to be tested (20); Liquid addition assembly (2), the liquid addition assembly (2) includes a liquid storage tank (21), a liquid addition pipeline (22) and a water pump (23). The inlet of the liquid addition pipeline (22) can be connected to the liquid storage tank (21), and the outlet of the liquid addition pipeline (22) can be connected to the container to be tested (20). The water pump (23) is installed on the liquid addition pipeline (22). The liquid level detection component (3) includes a transparent liquid level display (31). Both the transparent liquid level display (31) and the container to be tested (20) are open containers. The transparent liquid level display (31) is provided with liquid level scale, and the bottom end of the transparent liquid level display (31) is connected to the bottom end of the container to be tested (20).

2. The volume calibration and testing device according to claim 1, characterized in that, The liquid level detection component (3) further includes a connecting pipe (32), which is located at the bottom of both the transparent liquid level display (31) and the container to be detected (20), and the bottom end of the transparent liquid level display (31) is connected to the bottom end of the container to be detected (20) through the connecting pipe (32).

3. The volume calibration and testing device according to claim 1, characterized in that, The liquid addition assembly (2) also includes: A flow regulating valve (24) is provided on the liquid filling line (22), and the flow regulating valve (24) is configured to regulate the flow rate in the liquid filling line (22); A flow meter (25) is disposed on the liquid filling line (22) and the flow meter (25) is configured to detect the flow rate in the liquid filling line (22).

4. The volume calibration and testing device according to any one of claims 1 to 3, characterized in that, The liquid addition assembly (2) also includes: The first valve (26) is provided at the inlet of the liquid filling pipeline (22) so that the inlet of the liquid filling pipeline (22) is connected to the liquid storage tank (21) through the first valve (26); The second valve (27) is located at the outlet of the liquid filling pipeline (22) so that the outlet of the liquid filling pipeline (22) is connected to the container to be tested (20) through the second valve (27).

5. The volume calibration and testing device according to claim 4, characterized in that, The volume calibration and testing device also includes a liquid extraction component (4), the inlet of which can be connected to the container to be tested (20), and the outlet of which can be connected to the storage tank (21).

6. The volume calibration and testing device according to claim 5, characterized in that, The liquid extraction assembly (4) includes: The first liquid extraction pipeline (41) has its inlet connected to the outlet of the liquid addition pipeline (22), and its outlet connected to the inlet of the liquid addition pipeline (22). Along the flow direction of the liquid in the liquid addition pipeline (22), the connection between the inlet of the first liquid extraction pipeline (41) and the liquid addition pipeline (22) is located downstream of the second valve (27), and the connection between the outlet of the first liquid extraction pipeline (41) and the liquid addition pipeline (22) is located downstream of the first valve (26). The third valve (42) is installed on the first liquid extraction pipeline (41); The second liquid extraction pipeline (43) has its inlet connected to the outlet of the liquid addition pipeline (22), and its outlet connected to the storage tank (21). Along the flow direction of the liquid in the liquid addition pipeline (22), the connection between the inlet of the second liquid extraction pipeline (43) and the liquid addition pipeline (22) is located upstream of the second valve (27). The fourth valve (44) is installed on the second liquid extraction pipeline (43).

7. The volume calibration and testing device according to any one of claims 1 to 3, characterized in that, The volume calibration and testing device also includes a liquid replenishment component (5), the outlet of which is connected to the liquid filling pipeline (22), and the connection between the outlet of the liquid replenishment component (5) and the liquid filling pipeline (22) is located between the liquid storage tank (21) and the water pump (23).

8. The volume calibration and testing device according to claim 7, characterized in that, The fluid replenishment component (5) includes: Replenishment funnel (51); The replenishment pipeline (52) has its inlet connected to the replenishment funnel (51), its outlet connected to the addition pipeline (22), and the connection between the outlet of the replenishment pipeline (52) and the addition pipeline (22) is located between the storage tank (21) and the water pump (23). The fifth valve (53) is installed on the replenishment pipeline (52).

9. The volume calibration and testing device according to any one of claims 1 to 3, characterized in that, The volume calibration and detection device further includes a data processing component (6), which includes a data acquisition unit (61) and a processor (62) connected by communication. The data acquisition unit (61) is configured to acquire the detection value of the weight detection component (1), and the processor (62) is configured to obtain the volume of the container to be tested (20) based on the detection value of the weight detection component (1) acquired by the data acquisition unit (61) and the density of the liquid in the container to be tested (20).

10. A volume calibration and testing method, characterized in that, The volume calibration and testing device applied to any one of claims 1 to 9, wherein the volume calibration and testing method comprises the following steps: The liquid filling assembly (2) replenishes the container (20) to be tested with liquid; The weight of the container to be tested (20) is detected in real time by the weight detection component (1) to obtain the weight change of the container to be tested (20); The volume change in the container (20) to be tested is obtained based on the density of the liquid in the container (20) to be tested and the amount of weight change of the container (20) to be tested. The volume change in the container to be tested (20) is verified by the liquid level displayed on the transparent liquid level indicator (31).

Images