Intelligent standard volumetric measuring tank

Abstract

This utility model discloses an intelligent standard volume measuring barrel, comprising a stainless steel measuring barrel, a first temperature sensor, a second temperature sensor, an electronic vernier caliper, and a main unit with explosion-proof function. The main unit includes a main controller, a third temperature sensor, and a UI interface module. The UI interface module allows input of relevant parameters to the main controller, and the measurement results obtained by the main controller are displayed on a screen. The first temperature sensor, the second temperature sensor, and the electronic vernier caliper are connected to the input terminals of the main controller. Temperature signals T1, T2, and T3, along with relevant parameters, are input into the main controller, which calculates the liquid volume of the measured oil and displays the final result on the screen. It features a high degree of automation, saves time and labor, is highly efficient, and has good measurement accuracy.

Description

Technical Field

[0001] This utility model relates to the field of petrochemical technology, and to gasoline or diesel fuel volume metering equipment, specifically to an intelligent standard volume metering barrel. Background Technology

[0002] Currently, gas stations have become an important place for vehicles to refuel in daily life. According to the regulations of the industrial and commercial administration department, gas stations must regularly test the metering accuracy of fuel dispensers. Therefore, the State Bureau of Metrology has stipulated that the "fuel dispenser metering tank" is the measuring instrument for testing fuel dispensers. The monthly calibration of the fuel dispenser metering accuracy is a mandatory task that gas station employees must perform every month, referred to as "gun calibration". Currently, the measuring tool used to measure the volume of gasoline or diesel fuel during gun calibration is a 20L stainless steel conical measuring cylinder or measuring tank, referred to as the standard tank. This measuring tank is manufactured by a manufacturer with metrological instrument production qualifications and has passed the verification and calibration of relevant third-party units. After calibration, the error parameters and calibration coefficients are issued and affixed in a conspicuous place. The calibration cycle is generally one or two years. Currently, the widely used standard tanks are all mechanical. After filling the specified volume (usually 20L) of fuel, the vernier caliper is adjusted according to the liquid level to observe the reading on the (ordinary) scale. The caliper reading has a functional relationship with the volume of oil in the standard tank, which can generally be obtained by referring to a table. Based on the calibration coefficient of the standard tank during verification or calibration, the working volume of the oil in the standard tank is calculated. Then, based on the inlet oil concentration and the liquid temperature inside the standard tank, the standard volume is converted according to the functional relationships of the expansion coefficient of the standard tank material and the expansion coefficient of the oil, and recorded for comparison. A gas station typically has 16-20 fuel nozzles, making the nozzle calibration work relatively complex and time-consuming for gas station staff. Current fuel nozzle metering accuracy calibration work suffers from the following problems: 1. Vernier caliper readings are inconvenient, requiring manual calculation, resulting in low efficiency and lack of automation. 2. The working volume must be manually calculated based on the vernier caliper height using a table. 3. Inlet temperature measurement is difficult, often resulting in large errors or inaccuracies; tank temperature is also inconvenient to measure, leading to insufficient accuracy. 4. The complexity and large workload of table lookup, recording, and calculation lead to data falsification by employees. Utility Model Content

[0003] This utility model provides an intelligent standard volume measuring tank to solve the technical problems of the existing fuel dispenser measuring tank, which is inconvenient to read with vernier calipers during the measuring process, requires manual reading and calculation, is inefficient, cannot be automated, and requires manual calculation, which is complicated, time-consuming, labor-intensive, and has poor measurement accuracy.

[0004] The technical solution of this utility model is implemented as follows:

[0005] A smart standard volume measuring container, characterized in that it includes:

[0006] A measuring container is used to hold the oil sample to be tested;

[0007] A first temperature sensor is installed at the neck inlet of the metering barrel and measures the temperature signal T1.

[0008] A second temperature sensor is installed in the middle of the metering barrel and measures the temperature signal T2.

[0009] An electronic vernier caliper is used to measure the liquid level H of oil in a measuring container;

[0010] A host unit with explosion-proof function includes a main controller, a third temperature sensor, and a UI interface module. The UI interface module allows input of relevant parameters to the main controller, and the measurement results obtained by the main controller are displayed on the screen. The third temperature sensor detects the ambient temperature signal T3. The first temperature sensor, the second temperature sensor, the third temperature sensor, and the electronic vernier caliper are connected to the input terminal of the main controller. During operation, temperature signals T1, T2, and T3, the liquid level H of the oil, and relevant parameters are input into the main controller. The main controller calculates the liquid volume of the measured oil and displays the final result on the screen.

[0011] Preferably, the UI module is a display screen and operation buttons, or a touch screen.

[0012] Preferably, the main controller communicates with the first and second temperature sensors via a wired connection, and the main controller communicates with the electronic vernier caliper via Bluetooth or a wired connection.

[0013] Preferably, the UI interface module can input relevant parameters to the main controller, including the expansion coefficient of the liquid medium, the expansion coefficient of the metal medium, and the calibration coefficient.

[0014] Preferably, the main controller is provided with a signal input interface for wired communication with the first temperature sensor and the second temperature sensor.

[0015] Preferably, the metering tank is made of stainless steel and includes a tank body, a tank neck inlet, and an oil inlet funnel. The oil inlet funnel, the tank neck inlet, and the tank body are connected. A transparent liquid level observation tube 14 is provided on one side of the tank neck inlet.

[0016] Preferably, the main controller has a memory and a data upload port.

[0017] Compared with the prior art, this utility model has the following advantages:

[0018] 1. This utility model's intelligent standard volume measuring barrel facilitates monthly nozzle calibration at gas stations. The first step is to inject 20L of liquid; then, the current electronic caliper reading is read; a table is consulted to determine the corresponding gasoline / diesel volume; and the standard volume is calculated using a function based on the barrel's material expansion coefficient, the liquid's expansion coefficient, the measured inlet temperature, and the liquid temperature. Staff adjust the fuel nozzles according to this data to ensure the error is within ±3% of the national standard. This process is then recorded. Previously, monthly nozzle calibration for one fuel nozzle at a time took an average of 10 minutes. Using this utility model, the average time is reduced to 1 minute, increasing efficiency tenfold. Based on calibrating 20 fuel nozzles per station, this saves employees two hours and more than doubles accuracy. Furthermore, it boasts a high degree of automation, saving time and labor, increasing efficiency, and ensuring high measurement accuracy.

[0019] 2. Other advantages of this utility model are described in detail in the embodiments section. Attached Figure Description

[0020] Figure 1 A schematic diagram of the structure of the intelligent standard volume measuring bucket provided by this utility model;

[0021] Figure 2 This is a circuit block diagram of the present invention;

[0022] Figure 3 This is another circuit block diagram of the present invention;

[0023] Figure 4 This is a schematic diagram of the calculation results displayed by the intelligent standard volume measuring bucket provided by this utility model. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] like Figures 1 to 2 As shown, this embodiment provides an intelligent standard volume measuring container, characterized in that it includes:

[0026] A measuring container (10) is used to hold the oil sample to be tested.

[0027] A first temperature sensor 1 is installed at the neck inlet 12 of the metering barrel 10 and measures the temperature signal T1.

[0028] A second temperature sensor 2 is installed in the middle of the metering barrel 10 and measures the temperature signal T2.

[0029] An electronic vernier caliper 4 is used to measure the liquid level H of the oil in the measuring container 10;

[0030] A host 5 with explosion-proof function includes a main controller, a third temperature sensor 3 and a UI interface module. The UI interface module can input relevant parameters to the main controller, and the measurement results obtained by the main controller are displayed on the screen. The third temperature sensor 3 detects the ambient temperature signal T3. The first temperature sensor 1, the second temperature sensor 2, the third temperature sensor 3 and the electronic vernier caliper 4 are connected to the input terminal of the main controller.

[0031] During operation, temperature signals T1, T2, and T3, the liquid level H of the oil, and related parameters are input into the main controller. The main controller calculates the liquid volume of the oil being tested and displays the final result on the screen.

[0032] The main unit 5 has built-in operating software, which includes the following functions: manual input and automatic correction functions for the coefficient of thermal expansion of metals; manual input, selection, and automatic correction functions for the coefficients of thermal expansion of different liquids; automatic temperature difference correction function; calibration coefficient correction function; and after the vernier caliper height is manually determined, the system reads the electronic vernier caliper reading and outputs the liquid volume reading in the stainless steel measuring container 10. The main unit 5 uses a low-power design and has a built-in explosion-proof rechargeable battery.

[0033] Preferably, Figure 2 The UI module consists of a display screen and operation buttons, or something similar. Figure 3 As shown, the UI module is a touch screen (similar to the touch screen of a smartphone, which has both display and button input functions).

[0034] Preferably, the main controller communicates with the first temperature sensor 1 and the second temperature sensor 2 via a wired connection, and communicates with the electronic vernier caliper 4 via Bluetooth or a wired connection.

[0035] Preferably, the UI interface module can input relevant parameters to the main controller, including the expansion coefficient of the liquid medium, the expansion coefficient of the metal medium, and the calibration coefficient.

[0036] Preferably, the main controller is provided with a signal input interface for wired communication with the first temperature sensor 1 and the second temperature sensor 2.

[0037] Preferably, the stainless steel metering barrel 10 includes a barrel body 11, a barrel body neck inlet 12, and an oil inlet funnel 13. The oil inlet funnel 13, the barrel body neck inlet 12, and the barrel body 11 are connected. A transparent liquid level observation tube 14 is provided on one side of the barrel body neck inlet 12.

[0038] Preferably, the main controller has a memory and a data upload port, which is an I / O port.

[0039] The main controller of host 5 has 5 input interfaces, as shown in Table 1;

[0040]

[0041]

[0042] The main controller of host 5 has a built-in software calculation module. The specific calculation requirements are shown in Table 2.

[0043]

[0044] The parameters that require manual setting are shown in Table 3 below. These parameters are entered via the operation buttons:

[0045]

[0046] This utility model's intelligent standard volume measuring cylinder facilitates monthly nozzle calibration at gas stations. The first step involves injecting 20L or 50L of fuel; then, the current electronic caliper reading is read; a table is consulted to determine the corresponding gasoline / diesel volume; and the standard volume is calculated using a function based on the cylinder's material expansion coefficient, the liquid expansion coefficient, the measured inlet temperature, and the liquid temperature. Staff adjust the fuel nozzles according to this data to ensure the error is within ±3% of the national standard. All adjustments are recorded. Previously, monthly nozzle calibration took an average of 10 minutes per nozzle; with this new device, the average time is reduced to 1 minute, increasing efficiency tenfold. Based on calibrating 20 nozzles per station, this saves employees two hours and more than doubles accuracy. It boasts a high degree of automation, saving time and labor, increasing efficiency, and ensuring high measurement accuracy. After completing its work, the intelligent standard volume measuring cylinder displays the result on the screen. Figure 4 The data results are shown.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An intelligent standard volumetric measuring tank characterized in that: include A measuring container (10) is used to hold the oil to be tested; A first temperature sensor (1) is installed at the neck inlet (12) of the metering barrel (10) and measures the temperature signal T1; A second temperature sensor (2) is installed in the middle of the metering barrel (10) and measures the temperature signal T2; An electronic vernier caliper (4) is used to measure the liquid height H of the oil in the measuring container (10); A host (5) with explosion-proof function. The host (5) includes a main controller, a third temperature sensor (3) and a UI interface module. The UI interface module can input relevant parameters to the main controller. The measurement results obtained by the main controller are displayed on the screen. The third temperature sensor (3) detects the ambient temperature signal T3. The first temperature sensor (1), the second temperature sensor (2), the third temperature sensor (3) and the electronic vernier caliper (4) are connected to the input terminal of the main controller. During operation, temperature signals T1, T2, and T3, the liquid level H of the oil, and related parameters are input into the main controller. The main controller calculates the liquid volume of the oil being tested and displays the final result on the screen. The UI module consists of a display screen and operation buttons, or a touch screen. The UI interface module allows input of relevant parameters to the main controller, including the expansion coefficient of liquid media, the expansion coefficient of metal media, and the calibration coefficient.

2. The smart prover barrel of claim 1, wherein: The main controller communicates with the first temperature sensor (1) and the second temperature sensor (2) via wired connection, and communicates with the electronic vernier caliper via Bluetooth or wired connection.

3. A smart prover barrel according to any one of claims 1 to 2, wherein: The main controller is configured with a signal input interface to communicate via wired connection with the first temperature sensor (1) and the second temperature sensor (2).

4. A smart prover according to claim 3, wherein: The metering tank (10) includes a tank body (11), a tank body neck inlet (12) and an oil inlet funnel (13). The oil inlet funnel (13), the tank body neck inlet (12) and the tank body (11) are connected. A transparent liquid level observation tube (14) is provided on one side of the tank body neck inlet (12).

5. A smart prover according to claim 4, wherein: The main controller has a memory and a data upload port.

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