High-precision measuring device and method for liquid consumption in container

Abstract

The invention provides a high-precision measuring device and method for liquid consumption in a container, the high-precision measuring device comprises a liquid storage tank, a liquid column forming assembly, a measuring assembly and a connecting assembly, the liquid column forming assembly is arranged at the bottom of the liquid storage tank, the measuring assembly is arranged at the bottom of the liquid column forming assembly, and the measuring assembly comprises a second shell; a second cavity is formed in the second shell, and a second inlet and a second outlet which are communicated with the second cavity are formed in the second shell; a transparent conduit surrounds in the second cavity, one end of the transparent conduit is communicated with the liquid outlet, and the other end of the transparent conduit extends out of the second outlet and is connected with a tested container through a connecting assembly; first measuring pieces are arranged on two sides of the transparent conduit; by means of the structure, direct contact with measured liquid is not needed by adopting an external measurement mode, the safety performance in the measurement process is improved, and the integrity of a user product is guaranteed; meanwhile, the consumption of the measured liquid is calculated through the transparent guide pipe, the measurement precision is high, cost is saved, operation is convenient, and time and labor are saved.

Description

Technical Field

[0001] The present application generally relates to the field of liquid consumption measurement technology, and specifically to a high-precision measurement device and method for liquid consumption inside a container. Background Art

[0002] In daily production, in order to meet the needs of production process or performance testing of a certain equipment, device or component, it is usually necessary to monitor the liquid consumption of the equipment, device or component, especially the liquid consumption in a certain period of time, such as water, engine oil or lubricating oil, so as to measure the liquid consumption of the equipment, device or component; for example, in the field of vehicle engines, with the general trend of energy conservation and environmental protection, the urea consumption of the engine is an important influencing factor of the engine. Therefore, it is very important to be able to accurately and conveniently test the urea consumption of the engine during the development test.

[0003] In the prior art, when measuring urea consumption in a laboratory, it is necessary to measure the cumulative mass of urea consumed after the engine has been running for a period of time; sometimes, the urea consumption is calculated mainly by using a model built into the ECU. This measurement method is built into the measuring container and directly contacts urea, which can easily cause damage to the product; at the same time, in order not to damage the pipeline connecting the urea tank and the engine aftertreatment, the cumulative consumption of urea is calculated by weighing the urea tank before and after the test, which is time-consuming and labor-intensive, has low accuracy, high equipment cost investment, and many disadvantages. Summary of the invention

[0004] In view of the above defects or deficiencies in the prior art, it is desirable to provide a high-precision measuring device and method for the liquid consumption inside a container that can solve the above technical problems.

[0005] The first aspect of the present application provides a high-precision measuring device for liquid consumption in a container, comprising:

[0006] A liquid storage tank, wherein applicable fluid is stored in the liquid storage tank, a liquid replenishing port is arranged at the top of the liquid storage tank, a sealing cover is arranged at the liquid replenishing port, and a liquid outlet is arranged at the bottom of the liquid storage tank;

[0007] A liquid column forming component, the liquid column forming component is arranged at the bottom of the liquid storage tank, the liquid column forming component comprises a first shell and a first control component, a first cavity is formed inside the first shell, a first inlet and a first outlet connected to the first cavity are arranged on the first shell; the first inlet is connected to the liquid outlet, and a forming conduit is arranged at the first outlet; the forming conduit is used to form the applicable fluid into a liquid column; the first control component is used to control the first inlet and the first outlet to be connected or closed;

[0008] A measuring component, wherein the measuring component is arranged at the bottom of the liquid column forming component, and the measuring component includes a second shell, the second shell is arranged at the bottom of the first shell, a second cavity is formed inside the second shell, and a second inlet and a second outlet connected to the second cavity are arranged on the second shell; a core column is arranged in the second cavity along the first direction, and a transparent conduit is surrounded on the core column, one end of the transparent conduit extends out of the second inlet and is connected to the forming conduit, and the other end of the transparent conduit extends out of the second outlet, and a blocker is arranged at one end of the transparent conduit extending out of the second outlet, and a liquid discharge valve is arranged on the blocker, and the blocker is used to block the liquid column from entering the measured container; the liquid discharge valve is used to make the liquid column in the transparent conduit flow out; the first measuring piece is arranged on both sides of the transparent conduit along the second direction, and the first measuring piece is used to measure the height position of the liquid column in the transparent conduit; the second direction is perpendicular to the first direction;

[0009] A connecting component, the connecting component is used to connect the transparent catheter and the container to be measured, and a first pressure sensor and a first temperature sensor are provided on the connecting component. The first pressure sensor is used to measure the pressure in the container to be measured; and the first temperature sensor is used to measure the temperature in the container to be measured.

[0010] According to the technical solution provided in the present application, the measuring component also includes a second measuring piece, which is arranged on both sides of the transparent catheter along the first direction, and the second measuring piece is a small scale, and the second measuring piece is used to enhance the measurement accuracy of the height position of the liquid column.

[0011] According to the technical solution provided in the present application, the liquid column forming assembly also includes a first guide plate and a second guide plate, the first guide plate and the second guide plate are both arranged in the first cavity, and the first guide plate and the second guide plate are arranged opposite to each other; one end of the first guide plate is arranged on the inner wall of the second shell, and the other end of the first guide plate is connected to an end of the forming conduit away from the transparent conduit; one end of the second guide plate is arranged on the inner wall of the second shell, and the other end of the second guide plate is connected to an end of the forming conduit away from the transparent conduit; the first guide plate and the second guide plate form a guide channel between the first inlet and the forming conduit.

[0012] According to the technical solution provided in the present application, a balancing hole is provided on the side wall of the first shell, the balancing hole is connected to the guide channel, and the balancing hole is used to balance the pressure above the liquid column; a second pressure sensor and a second temperature sensor are provided on the first shell, the second pressure sensor is used to measure the pressure at the guide channel, and the second temperature sensor is used to measure the temperature at the guide channel.

[0013] According to the technical solution provided by this application, the first control component includes:

[0014] A stopper, the stopper comprising a first transverse plate, a first vertical plate, and a second transverse plate, the first transverse plate being inserted into the first cavity from one side of the first shell along the second direction and extending to the other side of the shaped conduit; a pressing plate is provided on one side of the first transverse plate outside the first shell, the other end of the first transverse plate is connected to the first vertical plate, the first vertical plate is arranged along the first direction, the other end of the first vertical plate is connected to the second transverse plate, the second transverse plate is arranged along the second direction, and the end of the second transverse plate away from the first vertical plate enters into the shaped conduit and abuts against the inner wall of the shaped conduit;

[0015] A first spring is arranged on a side of the first vertical plate away from the first horizontal plate, and the other end of the first spring abuts against an inner wall of the second shell.

[0016] According to the technical solution provided by this application, the connection component includes:

[0017] A sealing cover, wherein the sealing cover is arranged at the entrance of the container to be tested; the first pressure sensor is arranged on the sealing cover, and the first temperature sensor is arranged on the sealing cover;

[0018] A quick-insert connector, which is disposed on the cover and is used to connect with the transparent conduit;

[0019] A pressure balancing valve is provided on the sealing cover and is used to balance the pressure between the measured container and the atmosphere.

[0020] According to the technical solution provided in the present application, a liquid separation component is provided between the liquid storage tank and the liquid column forming component, and the liquid separation component is used to divide the volume of the applicable fluid used for a single measurement; the liquid separation component includes:

[0021] A third shell, wherein a third cavity is formed inside the third shell, and the third shell has a third inlet and a third outlet connected to the third cavity, wherein the third inlet is connected to the liquid outlet; and the third outlet is connected to the first inlet;

[0022] a liquid separation chamber, the liquid separation chamber being arranged in the third cavity, a movable piston being arranged at one end of the liquid separation chamber, and the other end of the movable piston extending out of the third housing; the movable piston being used to adjust the volume of the liquid separation chamber; and a fourth inlet and a fourth outlet being arranged on the liquid separation chamber;

[0023] The second control component includes a first state and a second state. When in the first state, the fourth inlet is connected to the third inlet; when in the second state, the fourth outlet is connected to the third outlet.

[0024] According to the technical solution provided by this application, the second control component includes:

[0025] A sealing gasket, wherein the sealing gasket is divided into a first sealing gasket and a second sealing gasket, wherein the first sealing gasket and the second sealing gasket are respectively abutted against two sides of the liquid separation chamber;

[0026] A liquid-dispensing button, which is arranged outside the third housing, a driving end of which extends into the third housing and is connected to a side of the first sealing gasket away from the liquid-dispensing chamber, and is used to push the liquid-dispensing chamber to move within the third cavity;

[0027] a second spring, the second spring being arranged on a side of the second sealing gasket away from the liquid separation chamber, and the other end of the second spring being in contact with an inner wall of the third housing;

[0028] Among them, when the second control component is in the first state, the second spring is in a released state, the third inlet is connected to the fourth inlet, and the applicable fluid flows into the liquid separation chamber; when the liquid separation button is pressed, the second control component is in the second state, the second spring is in a compressed state, the fourth outlet is connected to the third outlet, and the applicable fluid in the liquid separation chamber flows into the first cavity.

[0029] According to the technical solution provided in the present application, a scissor lift is arranged at the bottom of the measuring component, and the scissor lift is used to control the lifting and lowering of the measuring device; a plurality of wheels are arranged at the bottom of the scissor lift to control the movement of the measuring device.

[0030] The second aspect of the present application provides a high-precision measurement method for liquid consumption in a container, using the high-precision measurement device for liquid consumption in a container described in the first aspect, comprising the following steps:

[0031] Selecting a suitable fluid according to the liquid to be tested in the container to be tested and storing it in the liquid storage tank;

[0032] Connecting a measuring device to a container to be measured, wherein the measuring device and the container to be measured form a closed space in which closed air is stored;

[0033] Measure the diameter D of the transparent catheter;

[0034] Measure the pressure P between the transparent conduit and the container under test before the test. 2a and temperature T 2a ;

[0035] Measuring the amount of substance n and the molar gas constant R of the enclosed air;

[0036] Measuring the density ρ of the measured liquid;

[0037] Control the applicable fluid in the liquid storage tank to form a liquid column and flow into the transparent conduit; when the liquid column and the enclosed air in the transparent conduit reach pressure equilibrium, record the height position X1 of the liquid column at this time;

[0038] The test is started to consume the liquid to be tested. When the liquid to be tested is completely consumed, the pressure of the enclosed air decreases. When the liquid column compresses the enclosed air to reach a new pressure balance, the height position X2 of the liquid column at this time is recorded;

[0039] Measure the pressure P between the transparent conduit and the container after the test. 2b and temperature T 2b ;

[0040] According to formula (1), the volume consumption V of the measured liquid is calculated: 消耗 ;

[0041]

[0042] According to formula (ii), the mass consumption m of the measured liquid is calculated: 消耗 ;

[0043] m 消耗 =V 消耗·ρ Formula (II).

[0044] The beneficial effects of this application are:

[0045] The present application provides a high-precision measurement device and method for the amount of liquid consumed in a container, the measuring device comprising: a liquid storage tank, a liquid column forming component, a measuring component and a connecting component, the liquid storage tank storing applicable fluid inside, a liquid replenishing port being provided at the top of the liquid storage tank, a sealing cover being provided at the liquid replenishing port, and a liquid outlet being provided at the bottom of the liquid storage tank; a liquid column forming component being provided at the bottom of the liquid storage tank, the liquid column forming component comprising a first shell and a first control component, a first cavity being formed inside the first shell, a first inlet and a first outlet being provided on the first shell being connected to the first cavity; the first inlet being connected to the liquid outlet, a forming conduit being provided at the first outlet, the forming conduit being used to form a liquid column from the applicable fluid, and the first control component being used to control the first inlet and the first outlet to be connected or closed; a measuring component being provided at the bottom of the liquid column forming component, the measuring component comprising a second shell, the second shell being provided at the bottom of the first shell, the inside of the second shell A second cavity is formed, and a second inlet and a second outlet connected to the second cavity are provided on the second shell; a core column is provided in the second cavity along the first direction, and a transparent conduit is surrounded on the core column, one end of the transparent conduit extends out of the second inlet and is connected to the formed conduit, and the other end of the transparent conduit extends out of the second outlet, and a blocker is provided at one end of the transparent conduit extending out of the second outlet, and a liquid discharge valve is provided on the blocker, and the blocker is used to block the liquid column from entering the measured container; the liquid discharge valve is used to let the liquid column in the transparent conduit flow out; the first measuring piece is provided on both sides of the transparent conduit along the second direction, and the first measuring piece is used to measure the height position of the liquid column in the transparent conduit; a connecting component is provided between the transparent conduit and the measured container, and a first pressure sensor and a first temperature sensor are provided on the connecting component, and the first pressure sensor is used to measure the pressure in the measured container; the first temperature sensor is used to measure the temperature in the measured container;

[0046] When the measuring device is used to measure the liquid consumption inside the measured container, firstly, a suitable fluid is selected according to the measured liquid in the measured container and stored in the liquid storage tank, and then the transparent conduit is connected to the measured container through the connecting assembly. At this time, a closed space is formed between the measuring device and the measured container, and closed air is stored inside; the diameter D of the transparent conduit is measured, and at the same time, before the test, the first pressure sensor and the first temperature sensor are used to measure the pressure P between the transparent conduit and the measured container. 2a and temperature T 2a; After the measurement is completed, the first control component controls the applicable fluid in the liquid storage tank to form a liquid column through the liquid column forming component and flow into the transparent conduit. When the volume of the applicable fluid required for a single measurement is reached, the first control component controls the applicable fluid to stop flowing into the transparent conduit; when the liquid column and the enclosed air reach pressure equilibrium in the transparent conduit, the height position reading X1 of the liquid column at this time is measured and recorded by the first measuring piece; then the test to consume the measured liquid is started. When the measured liquid is consumed, the pressure of the enclosed air decreases, and the liquid column compresses the enclosed air to reach a new pressure equilibrium, and the height position reading X2 of the liquid column at this time is measured and recorded by the first measuring piece; then the first pressure sensor and the first temperature sensor are used to measure the pressure P between the transparent conduit and the measured container after the test respectively. 2b and temperature T 2b ; and according to the formula Calculate the volume consumption V of the measured liquid 消耗 (where the amount of substance n of the enclosed air and the molar gas constant R are known parameters) Substitute the volume consumption into the formula m 消耗 =V 消耗·ρ (wherein the density ρ of the measured liquid is a known parameter), and the mass consumption of the measured liquid is calculated; through the above structure, the present application adopts an external measurement method without direct contact with the measured liquid, thereby improving the safety performance during the measurement process, and does not need to damage the user's product, thereby ensuring the integrity of the user's product; at the same time, the consumption of the measured liquid is calculated through the transparent catheter, with high measurement accuracy, cost saving, and convenient operation, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0048] Figure 1 is a cross-sectional view of a high-precision measuring device for liquid consumption inside a container in the present application;

[0049] Figure 2 is a front view of a high-precision measuring device for liquid consumption inside a container in the present application;

[0050] Figure 3 It is a cross-sectional view of a high-precision measuring device for liquid consumption inside a container in the present application connected to a container to be measured;

[0051] Figure 4 is a schematic diagram of a liquid storage tank in the present application;

[0052] Figure 5is a schematic diagram of the liquid separation component in the present application;

[0053] Figure 6 is a schematic diagram of a liquid column forming assembly in the present application;

[0054] Figure 7 is a schematic diagram of the measurement components in this application;

[0055] Figure 8 is a schematic diagram of the connection components in this application;

[0056] Fig. 9 It is a flow chart of a method for high-precision measurement of liquid consumption inside a container in the present application.

[0057] In the figure: 1, liquid storage tank; 2, sealing cover; 3, applicable fluid; 4, first shell; 5, formed conduit; 6, first guide plate; 7, second guide plate; 8, first horizontal plate; 9, first vertical plate; 10, second horizontal plate; 11, balancing hole; 12, second pressure sensor; 13, second temperature sensor; 15, second shell; 16, transparent conduit; 17, first measuring piece; 18, second measuring piece; 19, blocker; 20, liquid discharge valve; 21, cover; 22, first pressure sensor; 23, first temperature sensor; sensor; 24, quick connector; 25, pressure balance valve; 26, third housing; 27, liquid dispensing chamber; 28, first sealing gasket; 29, movable piston; 30, liquid dispensing button; 31, second spring; 32, first spring; 33, scissor lift; 34, wheel; 35, measured container; 36, measured liquid; 37, liquid filling port; 38, liquid outlet; 39, third inlet; 40, third outlet; 41, fourth inlet; 42, fourth outlet; 43, first inlet; 44, first outlet; 45, second inlet. DETAILED DESCRIPTION

[0058] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0059] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0060] Example 1

[0061] Please refer to Figure 1-Figure 3 A schematic diagram of a high-precision measuring device for liquid consumption in a container provided in the present application, comprising:

[0062] A liquid storage tank 1, wherein a suitable fluid 3 is stored in the liquid storage tank 1, a liquid replenishing port 37 is provided at the top of the liquid storage tank 1, a sealing cover 2 is provided at the liquid replenishing port 37, and a liquid outlet 38 is provided at the bottom of the liquid storage tank 1;

[0063] A liquid column forming component, the liquid column forming component is arranged at the bottom of the liquid storage tank 1, and the liquid column forming component includes a first shell 4 and a first control component. A first cavity is formed inside the first shell 4, and a first inlet 43 and a first outlet 44 connected to the first cavity are arranged on the first shell 4; the first inlet 43 is connected to the liquid outlet 38, and a forming conduit 5 is arranged at the first outlet 44; the forming conduit 5 is used to form the applicable fluid 3 into a liquid column; the first control component is used to control the first inlet 43 and the first outlet 44 to be connected or closed;

[0064] A measuring component, the measuring component is arranged at the bottom of the liquid column forming component, the measuring component includes a second shell 15, the second shell 15 is arranged at the bottom of the first shell 4, a second cavity is formed inside the second shell 15, and a second inlet 45 and a second outlet connected to the second cavity are arranged on the second shell 15; a core column is arranged in the second cavity along the first direction, and a transparent conduit 16 is surrounded by the core column, one end of the transparent conduit 16 extends out of the second inlet 45 to communicate with the forming conduit 5, and the other end of the transparent conduit 16 extends out of the second outlet, and a blocker 19 is arranged at one end of the transparent conduit 16 extending out of the second outlet, and a liquid discharge valve 20 is arranged on the blocker 19, and the blocker 19 is used to block the liquid column from entering the measured container 35; the liquid discharge valve 20 is used to discharge the liquid column in the transparent conduit 16; the first measuring piece 17 is arranged on both sides of the transparent conduit 16 along the second direction, and the first measuring piece 17 is used to measure the height position of the liquid column in the transparent conduit 16; the second direction is perpendicular to the first direction;

[0065] A connecting component, the connecting component is used to connect the transparent catheter 16 and the container 35 to be measured, and a first pressure sensor 22 and a first temperature sensor 23 are provided on the connecting component. The first pressure sensor 22 is used to measure the pressure in the container 35 to be measured; the first temperature sensor 23 is used to measure the temperature in the container 35 to be measured.

[0066] Specifically, the transparent conduit 16 is a small-section pipeline, and the fluid in the transparent conduit 16 can form a columnar liquid seal in the pipeline above the enclosed air by counteracting the Rayleigh Taylor instability of the liquid surface through its own surface tension; in this embodiment, when measuring urea consumption, a conduit with an inner diameter of 3.2 mm is selected as the transparent conduit 16, and is designed according to the fuel consumption per WHTC cycle of a 15L large engine, and the urea fuel consumption ratio of 8% in a high urea consumption mode is used as a design condition, and the length of the transparent conduit 16 is designed to be 100m, and the single urea consumption measurement range is 0-1L, covering the test requirements of multiple power range models;

[0067] Specifically, Figure 4 As shown, the applicable fluid 3 of the liquid storage tank 1 is selected according to the measured liquid 36 (specifically, the measurement principle of the applicable fluid 3 needs to satisfy that when in a transparent conduit, the tension of the applicable fluid 3 itself should be able to offset its Rayleigh Taylor instability; at the same time, when the measured liquid 36 is afraid of being contaminated, the same fluid as the measured liquid can be selected as the applicable fluid 3; when the measured liquid 36 is not afraid of contamination, a fluid that satisfies the above measurement principle and is easily available can be selected as the applicable fluid 3). After selecting a suitable applicable fluid 3, open the sealing cover 2, pour the applicable fluid 3 into the liquid storage tank 1 through the liquid replenishing port 37, and close the sealing cover 2; in this embodiment, when measuring urea consumption, 33% automotive urea is selected as the applicable fluid 3;

[0068] Specifically, in this embodiment, the first direction is a vertical direction, and the second direction is a horizontal direction; the second shell 15 is a transparent shell; the first measuring member 17 is a large scale, and the large scale is used to read the height position of the liquid column;

[0069] Specifically, the cross-sectional shape of the transparent catheter 16 includes but is not limited to circular, square and other shapes to meet different usage scenarios;

[0070] Specifically, in this embodiment, the core column is a cylinder with a length of 1m, and the 100m transparent conduit 16 is spirally distributed around the cylinder with an outer diameter of 1m, and the total height of 100 circles is only 45cm, which saves space on the one hand, and can effectively reduce the pressure generated by the deadweight of the liquid column on the enclosed air on the other hand;

[0071] Specifically, a blocker 19 is provided at one end of the transparent conduit 16 extending out of the second outlet. The interior of the blocker 19 is connected to the transparent conduit 16, and its cross-sectional area is larger than the area where the surface tension of the applicable fluid 3 can maintain equilibrium, so as to prevent the applicable fluid 3 from entering the tested container 35; a liquid discharge valve 20 is provided at the bottom of the blocker 19. When the test is finished, the liquid discharge valve 20 is opened, and the applicable fluid 3 in the transparent conduit 16 is collected using a suitable container for subsequent proper treatment;

[0072] Specifically, in some embodiments, a liquid level sensor may be used to automatically identify and locate the height of the liquid level, saving human observation time;

[0073] Specifically, in some embodiments, the built-in electronic module collects the parameters required before, during and after the test, and directly outputs the measurement results of volume or mass consumption;

[0074] Specifically, the amount of substance n and the molar gas constant R of the enclosed air are constants related to air; the density ρ of the measured liquid 36 is determined according to the specific solution density;

[0075] Working principle: When the measuring device is used to measure the liquid consumption inside the measured container 35, firstly, a suitable fluid 3 is selected according to the measured liquid 36 in the measured container 35 and stored in the liquid storage tank 1, and then the transparent conduit 16 is connected to the measured container 35 through the connecting assembly. At this time, a closed space is formed between the measuring device and the measured container 35, and closed air is stored inside; the diameter D of the transparent conduit 16 is measured, and at the same time, before the test, the first pressure sensor 22 and the first temperature sensor 23 are used to measure the pressure P between the transparent conduit 16 and the measured container 35. 2a and temperature T 2aAfter the measurement is completed, the first control component controls the applicable fluid 3 in the liquid storage tank 1 to form a liquid column through the liquid column forming component and flow into the transparent conduit 16. When the volume of the applicable fluid 3 required for a single measurement is reached, the first control component controls the applicable fluid 3 to stop flowing into the transparent conduit 16. When the liquid column and the enclosed air reach pressure equilibrium in the transparent conduit 16, the height position reading X1 of the liquid column at this time is measured and recorded by the first measuring piece 17. Then, the test to consume the measured liquid is started. When the measured liquid 36 is consumed, the pressure of the enclosed air decreases. When the liquid column compresses the enclosed air to reach a new pressure equilibrium, the height position reading X2 of the liquid column at this time is measured and recorded by the first measuring piece 17. Then, the first pressure sensor 22 and the first temperature sensor 23 are used to measure the pressure P between the transparent conduit 16 and the measured container 35 after the test. 2b and temperature T 2b ; and according to the formula Calculate the volume consumption V of the measured liquid 36 消耗 (where the amount of substance n of the enclosed air and the molar gas constant R are known parameters), substitute the volume consumption into the formula m 消耗 =V 消耗·ρ (wherein the density ρ of the measured liquid is a known parameter), the mass consumption of the measured liquid 36 is calculated; when the measurement is completed, the liquid discharge valve 20 is opened to allow the liquid column in the transparent conduit 16 to flow out; the present application adopts an external measurement method without direct contact with the measured liquid 36, thereby improving the safety performance during the measurement process, and without destroying the user's product, thereby ensuring the integrity of the user's product; at the same time, the consumption of the measured liquid 36 is calculated through the transparent conduit 16, with high measurement accuracy, cost saving, and convenient operation, saving time and effort.

[0076] In some embodiments, the measuring component further includes a second measuring piece 18, which is disposed on both sides of the transparent tube 16 along the first direction, and is a small scale, and is used to enhance the measurement accuracy of the height position of the liquid column.

[0077] Specifically, Figure 7 As shown, the measuring assembly further includes a second measuring piece 18, which is a small scale. The second measuring piece 18 is arranged on both sides of the transparent conduit 16 along the first direction. The first direction is a vertical direction, so the small scale is arranged on the upper and lower sides of the transparent conduit 16. The same scales of the two small scales are connected by a straight line, and different straight lines are arranged at different color intervals to facilitate quick reading; Figure 7As shown, when reading the height position of the liquid column, first check which section of the transparent catheter the liquid column is located on, read the scale on the first measuring piece 17 corresponding to the current height position of the liquid column as an integer, further check and read the scale on the second measuring piece 18 corresponding to the height position of the liquid column as a decimal, and combine the read integer and decimal to obtain the height position reading X1 of the liquid column before the test or the height position reading X2 of the liquid column after the test, thereby improving the measurement accuracy of reading the height position of the liquid level.

[0078] In some embodiments, the liquid column forming assembly also includes a first guide plate 6 and a second guide plate 7, the first guide plate 6 and the second guide plate 7 are both arranged in the first cavity, and the first guide plate 6 and the second guide plate 7 are arranged opposite to each other; one end of the first guide plate 6 is arranged on the inner wall of the second shell 15, and the other end of the first guide plate 6 is connected to the end of the forming conduit 5 away from the transparent conduit 16; one end of the second guide plate 7 is arranged on the inner wall of the second shell 15, and the other end of the second guide plate 7 is connected to the end of the forming conduit 5 away from the transparent conduit 16; the first guide plate 6 and the second guide plate 7 form a guide channel between the first inlet 43 and the forming conduit 5.

[0079] Specifically, Figure 6 As shown, the liquid column forming component also includes a first guide plate 6 and a second guide plate 7, the first guide plate 6 and the second guide plate 7 are both arranged in the first cavity, and the first guide plate 6 and the second guide plate 7 are arranged opposite to each other; one end of the first guide plate 6 is arranged on the inner wall of the second shell 15, and the other end of the first guide plate 6 is connected to the end of the forming conduit 5 away from the transparent conduit 16; one end of the second guide plate 7 is arranged on the inner wall of the second shell 15, and the other end of the second guide plate 7 is connected to the end of the forming conduit 5 away from the transparent conduit 16, so that the first guide plate 6 and the second guide plate 7 form a guide channel between the first inlet 43 and the forming conduit 5, and the applicable fluid 3 flows out of the liquid storage tank 1 and enters the forming conduit 5 through the guide channel, so as to form the liquid column in advance, thereby avoiding the applicable fluid 3 from flowing into other positions in the first cavity, causing waste of the applicable fluid 3.

[0080] In some embodiments, a balancing hole 11 is provided on the side wall of the first shell 4, and the balancing hole 11 is connected to the guide channel. The balancing hole 11 is used to balance the pressure above the liquid column; a second pressure sensor 12 and a second temperature sensor 13 are provided on the first shell 4, and the second pressure sensor 12 is used to measure the pressure at the guide channel, and the second temperature sensor 13 is used to measure the temperature at the guide channel.

[0081] Specifically, a balancing hole 11 is provided on the side wall of the first housing 4, the balancing hole 11 is communicated with the flow guide channel, and the balancing hole 11 is always connected to the atmosphere, so as to maintain the atmospheric pressure above the liquid column during the measurement process;

[0082] Specifically, a second pressure sensor 12 and a second temperature sensor 13 are provided on the first shell 4, which are used to measure the pressure and temperature data above the liquid column before and after the test, respectively.

[0083] In some embodiments, the first control component includes:

[0084] A stopper, the stopper comprising a first transverse plate 8, a first vertical plate 9 and a second transverse plate 10, the first transverse plate 8 being inserted into the first cavity from one side of the first shell 4 along the second direction and extending to the other side of the forming conduit 5; a pressing plate is provided on one side of the first transverse plate 8 outside the first shell 4, the other end of the first transverse plate 8 is connected to the first vertical plate 9, the first vertical plate 9 is arranged along the first direction, the other end of the first vertical plate 9 is connected to the second transverse plate 10, the second transverse plate 10 is arranged along the second direction, and the end of the second transverse plate 10 away from the first vertical plate 9 enters into the forming conduit 5 and abuts against the inner wall of the forming conduit 5;

[0085] The first spring 32 is disposed on a side of the first vertical plate 9 away from the first horizontal plate 8 , and the other end of the first spring 32 abuts against an inner wall of the second housing 15 .

[0086] Specifically, in the present embodiment, the first control component includes: a cut-off member and a first spring 32; the cut-off member includes a first transverse plate 8, a first vertical plate 9 and a second transverse plate 10, the first transverse plate 8 is inserted into the first cavity from one side of the first shell 4 along the second direction, and extends to the other side of the forming conduit 5; a pressing plate is provided on one side of the first transverse plate 8 outside the first shell 4, the other end of the first transverse plate 8 is connected to the first vertical plate 9, the first vertical plate 9 is arranged along the first direction, the other end of the first vertical plate 9 is connected to the second transverse plate 10, the second transverse plate 10 is arranged along the second direction, the end of the second transverse plate 10 away from the first vertical plate 9 enters the forming conduit 5 and abuts against the inner wall of the forming conduit 5; the first spring 32 is arranged on the side of the first vertical plate 9 away from the first transverse plate 8, the The other end of the first spring 32 abuts against the inner wall of the second shell 15; before starting the test; keep the first spring 32 in a released state, at this time, the end of the second cross plate 10 entering the forming conduit 5 abuts against the inner wall of the forming conduit 5, at this time, the formed liquid column is blocked above the second cross plate 10; when starting the test, press the pressing plate, at this time the first cross plate 8 drives the first vertical plate 9 to squeeze the first spring 32, so that the first spring 32 is in a compressed state, at this time the second cross plate 10 is driven not to abut against the inner wall of the forming conduit 5, the liquid column enters the transparent conduit 16, when the volume of the applicable fluid 3 required for a single measurement has all entered the transparent conduit 16, stop pressing the first cross plate 8, the first spring 32 drives the first cross plate 8, the first vertical plate 9 and the second cross plate 10 to reset.

[0087] In certain embodiments, the connection assembly comprises:

[0088] A cover 21, wherein the cover 21 is disposed at the entrance of the container 35 to be tested; the first pressure sensor is disposed on the cover 21, and the first temperature sensor 23 is disposed on the cover 21;

[0089] A quick-insert connector 24, which is disposed on the cover 21 and is used to connect with the transparent conduit 16;

[0090] A pressure balancing valve 25 is provided on the sealing cover 21 , and is used to balance the pressure between the measured container 35 and the atmosphere.

[0091] Specifically, Figure 8As shown, the connection assembly includes: a cover 21, a quick-connect connector 24 and a pressure balance valve 25; the cover 21 is adapted to the inlet of the measured container 35, and the cover 21 is used to seal the measured container 35. In some embodiments, the cover 21 can be processed into any shape; the first pressure sensor is arranged on the cover 21, and the first temperature sensor 23 is arranged on the cover 21;

[0092] Specifically, the cover 21 is provided with a quick-insert plug, and the quick-insert connector 24 is used to connect with the transparent conduit 16, so as to facilitate the quick disassembly of the transparent conduit 16;

[0093] Specifically, the cover 21 is provided with a pressure balancing valve 25. When the pressure balancing valve 25 is actively pressed, air can flow between the two sides of the valve to achieve a pressure balancing effect. After the pressure is released, the valve core is reset under the action of the spring. The pressure and temperature above the liquid column before and after the test measured by the second pressure sensor 12 and the second temperature sensor 13 are not directly used for the calculation of the final consumption, but are mainly used to confirm whether the pressure below the liquid level and the pressure above the liquid level are equal after the pressure balancing valve 25 is pressed.

[0094] Specifically, when the applicable fluid 3 selected is the same as the measured liquid 36, in order to reduce the measurement cost, the barrier and the liquid discharge valve 20 can be eliminated. When the measurement is completed, the pressure balance valve 25 is pressed to allow the applicable fluid 3 in the transparent conduit 16 to flow directly into the measured container 35, saving test time and material costs.

[0095] In some embodiments, a liquid separation component is provided between the liquid storage tank 1 and the liquid column forming component, and the liquid separation component is used to divide the volume of the applicable fluid 3 used for a single measurement; the liquid separation component includes:

[0096] A third shell 26, wherein a third cavity is formed inside the third shell 26, and the third shell 26 has a third inlet 39 and a third outlet 40 connected to the third cavity, wherein the third inlet 39 is connected to the liquid outlet 38; and the third outlet 40 is connected to the first inlet 43;

[0097] A liquid separation chamber 27, the liquid separation chamber 27 is arranged in the third cavity, a movable piston 29 is arranged at one end of the liquid separation chamber 27, and the other end of the movable piston 29 extends out of the third housing 26; the movable piston 29 is used to adjust the volume of the liquid separation chamber 27; the liquid separation chamber 27 is provided with a fourth inlet 41 and a fourth outlet 42;

[0098] The second control component has a first state and a second state. When in the first state, the fourth inlet 41 is connected to the third inlet 39 ; when in the second state, the fourth outlet 42 is connected to the third outlet 40 .

[0099] Specifically, Figure 5 As shown, in order to ensure the accuracy of the volume of the applicable fluid 3 required for a single measurement entering the transparent catheter 16, a liquid separation component is provided between the liquid storage tank 1 and the liquid column forming component, which is used to divide the volume of the applicable fluid 3 used for a single measurement; firstly, the volume of the applicable fluid 3 required for this time is calculated, and according to the volume of the applicable fluid 3, the volume of the liquid separation chamber 27 is adjusted by the movable piston 29, so that the volume of the liquid separation chamber 27 is consistent with the volume of the applicable fluid 3; in this embodiment, the volume of the liquid separation chamber 27 is 2cm 3 ;

[0100] In a normal state, the second control component is in a first state, the fourth inlet 41 is connected with the third inlet 39 and the liquid outlet 38, the fourth outlet 42 is not connected with the third outlet 40, and the applicable fluid 3 in the liquid storage tank 1 flows into the liquid separation chamber 27; when the liquid separation chamber 27 is filled with the applicable fluid 3, the second control component is switched from the first state to the second state, at which time the fourth inlet 41 is not connected with the third inlet 39, the fourth outlet 42, the third outlet 40 and the first inlet 43 are connected, and the applicable fluid 3 in the liquid separation chamber 27 flows into the forming conduit 5 to form the liquid column;

[0101] Specifically, in some embodiments, the outer sides of the liquid storage tank 1, the first shell 4, the second shell 15, and the third shell 26 are surrounded by heating wires, and an insulation layer is provided outside the heating wires to ensure the temperature inside the liquid storage tank 1, the first shell 4, the second shell 15, and the third shell 26 to reduce the related effects caused by temperature fluctuations.

[0102] In some embodiments, the second control component includes:

[0103] A sealing gasket, wherein the sealing gasket is divided into a first sealing gasket 28 and a second sealing gasket, wherein the first sealing gasket 28 and the second sealing gasket abut against two sides of the liquid separation chamber 27 respectively;

[0104] A liquid dispensing button 30, which is disposed outside the third housing 26, and a driving end of the liquid dispensing button 30 extends into the third housing 26 and is connected to a side of the first sealing gasket 28 away from the liquid dispensing chamber 27, and the liquid dispensing button 30 is used to push the liquid dispensing chamber 27 to move within the third cavity;

[0105] a second spring 31, wherein the second spring 31 is disposed on a side of the second sealing gasket away from the liquid separation chamber 27, and the other end of the second spring 31 abuts against an inner wall of the third housing 26;

[0106] Among them, when the second control component is in the first state, the second spring 31 is in a released state, the third inlet 39 is aligned and connected with the fourth inlet 41, and the applicable fluid 3 flows into the liquid separation chamber 27; the liquid separation button 30 is pressed, and the second control component is in the second state at this time, and the second spring 31 is in a compressed state, so that the fourth outlet 42 and the third outlet 40 are aligned and connected, and the applicable fluid 3 in the liquid separation chamber 27 flows into the first cavity.

[0107] Specifically, the second control component includes: a sealing gasket, a liquid dispensing button 30 and a second spring 31, the sealing gasket is divided into a first sealing gasket 28 and a second sealing gasket, the first sealing gasket 28 and the second sealing gasket respectively abut against the two sides of the liquid dispensing chamber 27; the liquid dispensing button 30 is arranged outside the third shell 26, the driving end of the liquid dispensing button 30 extends into the third shell 26 and is connected to the side of the first sealing gasket 28 away from the liquid dispensing chamber 27, and the liquid dispensing button 30 is used to push the liquid dispensing chamber 27 to move in the third cavity; the second spring 31 is arranged on the side of the second sealing gasket away from the liquid dispensing chamber 27, and the other end of the second spring 31 abuts against the inner wall of the third shell 26;

[0108] In a normal state, the second spring 31 is in a released state, the fourth inlet 41 is connected with the third inlet 39 and the liquid outlet 38, the fourth outlet 42 is not connected with the third outlet 40, and the applicable fluid 3 in the liquid storage tank 1 flows into the liquid separation chamber 27; when the liquid separation chamber 27 is filled with the applicable fluid 3, the liquid separation button 30 is pressed, and the liquid separation button 30 drives the liquid separation chamber 27 to move in a direction close to the second spring 31, and the second spring 31 is in a compressed state. At this time, the fourth inlet 41 is not connected with the third inlet 39, the fourth outlet 42, the third outlet 40 and the first inlet 43 are connected, and the applicable fluid 3 in the liquid separation chamber 27 flows into the forming conduit 5 to form the liquid column; when the applicable fluid 3 in the liquid separation chamber 27 has all flowed into the forming conduit 5, the liquid separation button 30 is released, and the second spring 31 drives the liquid separation chamber 27 to reset.

[0109] In some embodiments, a scissor lift 33 is provided at the bottom of the measuring assembly, and the scissor lift 33 is used to control the lifting and lowering of the measuring device; a plurality of wheels 34 are provided at the bottom of the scissor lift 33 to control the movement of the measuring device.

[0110] Specifically, a scissor lift 33 is provided at the bottom of the measuring assembly, and the scissor lift 33 is used to control the lifting and lowering of the measuring device to use the measured containers 35 at different heights;

[0111] Specifically, the Chinese patent with patent number CN201610775464.9 has disclosed the specific structure of the scissor lift 33, which will not be repeated here;

[0112] Specifically, a plurality of wheels 34 are provided at the bottom of the scissor lift 33 to facilitate the control of the movement of the measuring device.

[0113] Working process: when using the measuring device to measure the liquid consumption inside the measured container 35, firstly, the volume of the applicable fluid 3 required for a single measurement is calculated, and according to the volume of the applicable fluid 3, the volume of the liquid separation chamber 27 is adjusted by the movable piston 29, so that the volume of the liquid separation chamber 27 is consistent with the volume of the applicable fluid 3; then, according to the measured liquid 36 in the measured container 35, the applicable fluid 3 is selected to be stored in the liquid storage tank 1. Under normal conditions, the second spring 31 is in a released state, and the fourth inlet 41 is in contact with the third inlet 39 and The liquid outlet 38 is connected, the fourth outlet 42 is not connected to the third outlet 40, and the applicable fluid 3 in the liquid storage tank 1 flows into the liquid separation chamber 27; the transparent conduit 16 is connected to the measured container 35 through the connecting assembly, and a closed space is formed between the measuring device and the measured container 35, and closed air is stored inside; the diameter D of the transparent conduit 16 is measured; at the same time, before the test, the first pressure sensor 22 and the first temperature sensor 23 are respectively used to measure the pressure P between the transparent conduit 16 and the measured container 35 2a and temperature T 2a; After the measurement is completed, the liquid separation button 30 is pressed, and the liquid separation button 30 drives the liquid separation chamber 27 to move in the direction close to the second spring 31, and the second spring 31 is in a compressed state. At this time, the fourth inlet 41 is not connected to the third inlet 39, and the fourth outlet 42, the third outlet 40 and the first inlet 43 are connected. The applicable fluid 3 in the liquid separation chamber 27 flows into the forming conduit 5 to form the liquid column. When the applicable fluid 3 in the liquid separation chamber 27 has completely flowed into the forming conduit 5, the liquid separation button 30 is released, and the second spring 31 drives the liquid separation chamber 27 to reset; press the pressing plate, and at this time the first horizontal plate 8 drives the first vertical plate 9 to squeeze the first spring 32, so that the first spring 32 is in a compressed state. At this time, the second horizontal plate 10 is driven not to abut against the inner wall of the forming conduit 5, and the liquid column enters the transparent In the conduit 16, when the volume of the applicable fluid 3 required for a single measurement has all entered the transparent conduit 16, the first horizontal plate 8 is stopped from being pressed, and the first spring 32 drives the first horizontal plate 8, the first vertical plate 9 and the second horizontal plate 10 to reset; when the liquid column and the enclosed air reach pressure equilibrium in the transparent conduit 16, the height position reading X1 of the liquid column at this time is measured and recorded by the first measuring piece 17; then the test to consume the measured liquid is started, and when the measured liquid 36 is completely consumed, the pressure of the enclosed air decreases, and the liquid column compresses the enclosed air to reach a new pressure equilibrium, and the height position reading X2 of the liquid column at this time is measured and recorded by the first measuring piece 17; then the first pressure sensor 22 and the first temperature sensor 23 are respectively used to measure the pressure P between the transparent conduit 16 and the measured container 35 after the test 2b and temperature T 2b ; and according to the formula Calculate the volume consumption V of the measured liquid 36 消耗 (where the amount of substance n of the enclosed air and the molar gas constant R are known parameters), substitute the volume consumption into the formula m 消耗 =V 消耗·ρ (wherein the density ρ of the measured liquid is a known parameter), the mass consumption of the measured liquid 36 is calculated; when the measurement is completed, the liquid discharge valve 20 is opened to allow the liquid column in the transparent conduit 16 to flow out.

[0114] Example 2

[0115] Please refer to Fig. 9 This is a flow chart of a method for high-precision measurement of liquid consumption in a container provided by the present application, using a high-precision measurement device for liquid consumption in a container described in Example 1, including the following steps:

[0116] S1: selecting a suitable fluid according to the liquid to be tested in the container to be tested and storing it in a liquid storage tank;

[0117] S2: connecting the measuring device to the measured container, wherein the measuring device and the measured container form a closed space, and the closed air is stored inside;

[0118] S3: Measure the diameter D of the transparent catheter;

[0119] S4: Measure the pressure P between the transparent conduit and the container 35 before the test 2a and temperature T 2a ;

[0120] S5: Control the applicable fluid in the liquid storage tank to form a liquid column and flow into the transparent conduit; when the liquid column and the enclosed air in the transparent conduit reach pressure equilibrium, record the height position reading X1 of the liquid column at this time;

[0121] S6: Start the test to consume the liquid to be tested. When the liquid to be tested is consumed, the pressure of the enclosed air decreases. When the liquid column compresses the enclosed air to reach a new pressure balance, the height position X2 of the liquid column at this time is recorded.

[0122] S7: Measure the pressure P between the transparent conduit and the container after the test 2b and temperature T 2b ;

[0123] S8: Calculate the volume consumption V of the measured liquid according to formula (1) 消耗 ;

[0124]

[0125] S9: Calculate the mass consumption m of the measured liquid according to formula (II) 消耗 ;

[0126] m 消耗 =V 消耗·ρ Formula (II).

[0127] Specifically, when the measuring device is used to measure the liquid consumption inside the measured container 35, the volume of the applicable fluid 3 required for a single measurement is first calculated, and the volume of the liquid separation chamber 27 is adjusted by the movable piston 29 according to the volume of the applicable fluid 3, so that the volume of the liquid separation chamber 27 is consistent with the volume of the applicable fluid 3; then, the applicable fluid 3 is selected to be stored in the liquid storage tank 1 according to the measured liquid 36 in the measured container 35. Under normal conditions, the second spring 31 is in a released state, and the fourth inlet 41 is in contact with the third inlet 39 and the The liquid outlet 38 is connected, the fourth outlet 42 is not connected to the third outlet 40, and the applicable fluid 3 in the liquid storage tank 1 flows into the liquid separation chamber 27; the transparent conduit 16 is connected to the measured container 35 through the connecting assembly, and a closed space is formed between the measuring device and the measured container 35, and closed air is stored inside; the diameter D of the transparent conduit 16 is measured; at the same time, before the test, the first pressure sensor 22 and the first temperature sensor 23 are respectively used to measure the pressure P between the transparent conduit 16 and the measured container 35 2a and temperature T 2a; After the measurement is completed, the liquid separation button 30 is pressed, and the liquid separation button 30 drives the liquid separation chamber 27 to move in the direction close to the second spring 31, and the second spring 31 is in a compressed state. At this time, the fourth inlet 41 is not connected to the third inlet 39, and the fourth outlet 42, the third outlet 40 and the first inlet 43 are connected. The applicable fluid 3 in the liquid separation chamber 27 flows into the forming conduit 5 to form the liquid column. When the applicable fluid 3 in the liquid separation chamber 27 flows into the forming conduit 5 completely, the liquid separation button 30 is released, and the second spring 31 drives the liquid separation chamber 27 to reset; the pressing plate is pressed, and at this time the first horizontal plate 8 drives the first vertical plate 9 to squeeze the first spring 32, so that the first spring 32 is in a compressed state. At this time, the second horizontal plate 10 is driven not to abut against the inner wall of the forming conduit 5, and the liquid column enters the through In the transparent conduit 16, when the volume of the applicable fluid 3 required for a single measurement has all entered the transparent conduit 16, the first horizontal plate 8 is stopped from being pressed, and the first spring 32 drives the first horizontal plate 8, the first vertical plate 9 and the second horizontal plate 10 to reset; when the liquid column and the enclosed air reach pressure equilibrium in the transparent conduit 16, the height position reading X1 of the liquid column at this time is measured and recorded by the first measuring piece 17; then the test to consume the measured liquid is started, and when the measured liquid 36 is consumed, the pressure of the enclosed air decreases, and the liquid column compresses the enclosed air to reach a new pressure equilibrium, the height position reading X2 of the liquid column at this time is measured and recorded by the first measuring piece 17; then the first pressure sensor 22 and the first temperature sensor 23 are respectively used to measure the pressure P between the transparent conduit 16 and the measured container 35 after the test. 2b and temperature T 2b ; and according to the formula Calculate the volume consumption V of the measured liquid 36 消耗 (where the amount of substance n of the enclosed air and the molar gas constant R are known parameters), substitute the volume consumption into the formula m 消耗 =V 消耗·ρ (the density ρ of the measured liquid is a known parameter), the mass consumption of the measured liquid 36 is calculated; when the measurement is completed, the liquid discharge valve 20 is opened to let the liquid column in the transparent catheter 16 flow out.

[0128] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A high-precision measuring device for liquid consumption inside a container, characterized in that: include: A liquid storage tank (1), wherein a suitable fluid (3) is stored in the liquid storage tank (1), a liquid replenishing port (37) is provided at the top of the liquid storage tank (1), a sealing cover (2) is provided at the liquid replenishing port (37), and a liquid outlet (38) is provided at the bottom of the liquid storage tank (1); A liquid column forming component, the liquid column forming component is arranged at the bottom of the liquid storage tank (1), and the liquid column forming component comprises a first shell (4) and a first control component, a first cavity is formed inside the first shell (4), and a first inlet (43) and a first outlet (44) connected to the first cavity are arranged on the first shell (4); the first inlet (43) is connected to the liquid outlet (38), and a forming conduit (5) is arranged at the first outlet (44); the forming conduit (5) is used to form the applicable fluid (3) into a liquid column; the first control component is used to control the first inlet (43) and the first outlet (44) to be connected or closed; A measuring component, the measuring component is arranged at the bottom of the liquid column forming component, the measuring component comprises a second shell (15), the second shell (15) is arranged at the bottom of the first shell (4), a second cavity is formed inside the second shell (15), a second inlet (45) and a second outlet connected to the second cavity are arranged on the second shell (15); a core column is arranged in the second cavity along a first direction, a transparent conduit (16) surrounds the core column, one end of the transparent conduit (16) extends out of the second inlet (45) to be connected to the forming conduit (5), and the transparent conduit (16) The other end of the transparent conduit (16) extends out of the second outlet; a blocker (19) is provided at one end of the transparent conduit (16) extending out of the second outlet; a liquid discharge valve (20) is provided on the blocker (19); the blocker (19) is used to block the liquid column from entering the measured container (35); the liquid discharge valve (20) is used to allow the liquid column in the transparent conduit (16) to flow out; the first measuring member (17) is provided on both sides of the transparent conduit (16) along the second direction; the first measuring member (17) is used to measure the height position of the liquid column in the transparent conduit (16); the second direction is perpendicular to the first direction; A connecting assembly, the connecting assembly is used to connect the transparent catheter (16) and the container (35) to be measured, and a first pressure sensor (22) and a first temperature sensor (23) are arranged on the connecting assembly, the first pressure sensor (22) is used to measure the pressure in the container (35) to be measured; the first temperature sensor (23) is used to measure the temperature in the container (35) to be measured.

2. A high-precision measuring device for liquid consumption in a container according to claim 1, characterized in that: The measuring assembly further comprises a second measuring piece (18), the second measuring piece (18) being arranged on both sides of the transparent tube (16) along the first direction, the second measuring piece (18) being a small scale, and the second measuring piece (18) being used to enhance the measurement accuracy of the height position of the liquid column.

3. A high-precision measuring device for liquid consumption in a container according to claim 1, characterized in that: The liquid column forming component also includes a first guide plate (6) and a second guide plate (7), the first guide plate (6) and the second guide plate (7) are both arranged in the first cavity, and the first guide plate (6) and the second guide plate (7) are arranged opposite to each other; one end of the first guide plate (6) is arranged on the inner wall of the second shell (15), and the other end of the first guide plate (6) is connected to an end of the forming conduit (5) away from the transparent conduit (16); one end of the second guide plate (7) is arranged on the inner wall of the second shell (15), and the other end of the second guide plate (7) is connected to an end of the forming conduit (5) away from the transparent conduit (16); the first guide plate (6) and the second guide plate (7) form a guide channel between the first inlet (43) and the forming conduit (5).

4. A high-precision measuring device for liquid consumption in a container according to claim 3, characterized in that: A balancing hole (11) is provided on the side wall of the first shell (4), the balancing hole (11) is connected to the guide channel, and the balancing hole (11) is used to balance the pressure above the liquid column; a second pressure sensor (12) and a second temperature sensor (13) are provided on the first shell (4), the second pressure sensor (12) is used to measure the pressure at the guide channel, and the second temperature sensor (13) is used to measure the temperature at the guide channel.

5. A high-precision measuring device for liquid consumption in a container according to claim 2, characterized in that: The first control component comprises: A stop member, the stop member comprising a first transverse plate (8), a first vertical plate (9) and a second transverse plate (10), the first transverse plate (8) being inserted into the first cavity from one side of the first shell (4) along the second direction and extending to the other side of the forming conduit (5); a pressing plate is provided on one side of the first transverse plate (8) located outside the first shell (4), the other end of the first transverse plate (8) is connected to the first vertical plate (9), the first vertical plate (9) is arranged along the first direction, the other end of the first vertical plate (9) is connected to the second transverse plate (10), the second transverse plate (10) is arranged along the second direction, and the end of the second transverse plate (10) away from the first vertical plate (9) enters into the forming conduit (5) and abuts against the inner wall of the forming conduit (5); A first spring (32), wherein the first spring (32) is arranged on a side of the first vertical plate (9) away from the first horizontal plate (8), and the other end of the first spring (32) is in contact with an inner wall of the second shell (15).

6. A high-precision measuring device for liquid consumption in a container according to claim 1, characterized in that: The connection component comprises: A sealing cover (21), wherein the sealing cover (21) is arranged at the entrance of the container (35) to be tested; the first pressure sensor is arranged on the sealing cover (21), and the first temperature sensor (23) is arranged on the sealing cover (21); A quick-connect connector (24), the quick-connect connector (24) being arranged on the cover (21), the quick-connect connector (24) being used to connect to the transparent conduit (16); A pressure balancing valve (25), wherein the pressure balancing valve (25) is arranged on the sealing cover (21), and the pressure balancing valve (25) is used to balance the pressure between the measured container (35) and the atmosphere.

7. A high-precision measuring device for liquid consumption in a container according to claim 1, characterized in that: A liquid separation component is provided between the liquid storage tank (1) and the liquid column forming component, and the liquid separation component is used to divide the volume of the applicable fluid (3) used for a single measurement; the liquid separation component comprises: A third shell (26), wherein a third cavity is formed inside the third shell (26), and the third shell (26) has a third inlet (39) and a third outlet (40) which are connected to the third cavity, wherein the third inlet (39) is connected to the liquid outlet (38); and the third outlet (40) is connected to the first inlet (43); a liquid separation chamber (27), the liquid separation chamber (27) being arranged in the third cavity, a movable piston (29) being arranged at one end of the liquid separation chamber (27), and the other end of the movable piston (29) extending out of the third housing (26); the movable piston (29) being used to adjust the volume of the liquid separation chamber (27); and a fourth inlet (41) and a fourth outlet (42) being arranged on the liquid separation chamber (27); The second control component includes a first state and a second state. When in the first state, the fourth inlet (41) is connected to the third inlet (39); when in the second state, the fourth outlet (42) is connected to the third outlet (40).

8. A high-precision measuring device for liquid consumption in a container according to claim 7, characterized in that: The second control component comprises: A sealing gasket, the sealing gasket being divided into a first sealing gasket (28) and a second sealing gasket, the first sealing gasket (28) and the second sealing gasket respectively abutting against two sides of the liquid separation chamber (27); a liquid dispensing button (30), the liquid dispensing button (30) being arranged outside the third shell (26), the driving end of the liquid dispensing button (30) extending into the third shell (26) and connected to a side of the first sealing gasket (28) away from the liquid dispensing chamber (27), the liquid dispensing button (30) being used to push the liquid dispensing chamber (27) to move within the third cavity; a second spring (31), the second spring (31) being arranged on a side of the second sealing gasket away from the liquid separation chamber (27), the other end of the second spring (31) being in contact with an inner wall of the third housing (26); Wherein, when the second control component is in the first state, the second spring (31) is in a released state, the third inlet (39) is connected to the fourth inlet (41), and the applicable fluid (3) flows into the liquid separation chamber (27); when the liquid separation button (30) is pressed, the second control component is in the second state, the second spring (31) is in a compressed state, the fourth outlet (42) is connected to the third outlet (40), and the applicable fluid (3) in the liquid separation chamber (27) flows into the first cavity.

9. A high-precision measuring device for liquid consumption in a container according to claim 1, characterized in that: A scissor lift (33) is arranged at the bottom of the measuring assembly, and the scissor lift (33) is used to control the lifting and lowering of the measuring device; a plurality of wheels (34) are arranged at the bottom of the scissor lift (33) and are used to control the movement of the measuring device.

10. A method for measuring the amount of liquid consumed in a container with high precision, using the device for measuring the amount of liquid consumed in a container with high precision as claimed in claim 1, characterized in that: The following steps are involved: Selecting a suitable fluid according to the liquid to be tested in the container to be tested and storing it in the liquid storage tank; Connecting a measuring device to a container to be measured, wherein the measuring device and the container to be measured form a closed space in which closed air is stored; Measure the diameter D of the transparent catheter; Measure the pressure P between the transparent conduit and the container under test before the test. 2a and temperature T 2a ; Control the applicable fluid in the liquid storage tank to form a liquid column and flow into the transparent conduit; when the liquid column and the enclosed air in the transparent conduit reach pressure equilibrium, record the height position X1 of the liquid column at this time; The test is started to consume the liquid to be tested. When the liquid to be tested is completely consumed, the pressure of the enclosed air decreases. When the liquid column compresses the enclosed air to reach a new pressure balance, the height position X2 of the liquid column at this time is recorded; Measure the pressure P between the transparent conduit and the container after the test. 2b and temperature T 2b ; According to formula (1), the volume consumption V of the measured liquid is calculated: 消耗 ; According to formula (ii), the mass consumption m of the measured liquid is calculated: 消耗 ; m 消耗 =V 消耗·ρ Formula (II).

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