Verification platform for fuel oil flow meter

Abstract

The utility model discloses a verification platform for a fuel oil flow meter, and relates to the technical field of verification equipment. The device structurally comprises an oiling machine, an oil tank, a measurement and installation pipeline and a flowmeter to be detected installed on the measurement and installation pipeline. The flowmeter to be detected is connected with an independent digital display; the oil inlet end of the oiling machine is connected with an oil inlet pipe; a first ball valve is mounted at the end part of the oil inlet pipe; the oil tank is provided with an oil outlet pipe and an oil return pipe, and the end of the oil return pipe is provided with an oil tank cover port. And an oil tank cover is hermetically mounted on the oil tank cover port. According to the utility model, the standard flowmeter is compared with the to-be-detected flowmeter, so that the accuracy of the to-be-detected flowmeter can be accurately detected; it can be ensured that the flowmeter provides a reliable measurement result in practical application; the oil tank is arranged in the refrigerator, and the oil return pipe with the coil pipe structure and the rectangular channel on the bottom surface of the oil tank are arranged, so that the platform can simulate the fuel oil metering condition in a low-temperature state, which is very important for evaluating the performance of the flowmeter at an extreme temperature.

Description

Technical Field

[0001] The utility model belongs to the technical field of calibration equipment, in particular to a fuel flow meter calibration platform. Background Art

[0002] In the process of fuel storage, transportation and sales, accurate flow meter measurement results are crucial to ensure the fairness of transactions, improve economic benefits and conduct effective inventory management. Therefore, the calibration and verification of flow meters are key links to ensure their measurement accuracy. However, existing fuel flow meter verification methods or equipment often have problems such as complex operation, low verification efficiency, and inability to simulate the actual use environment, which limit the accuracy and efficiency of flow meter verification.

[0003] At present, many calibration platforms only support flow meter calibration at room temperature, which makes it difficult to simulate the performance of fuel under extreme temperature conditions, which may cause the calibrated flow meter to have measurement errors in the actual low-temperature use environment. In addition, the design of some calibration platforms is not flexible enough, which is not convenient for quickly replacing the flow meter to be inspected, or the air in the pipeline is not effectively removed before calibration, which affects the calibration accuracy. Some calibration platforms also do not solve the problem of fuel recycling and reuse well, resulting in resource waste and environmental pollution.

[0004] In view of the above problems, the utility model aims to provide a fuel flow meter calibration platform with reasonable structure, convenient operation and the ability to simulate different temperature environments, so as to improve the efficiency and accuracy of the calibration work, while achieving resource conservation and environmental protection. Utility Model Content

[0005] The purpose of the utility model is to provide a fuel flow meter calibration platform, which, through the combination of a fuel dispenser, a fuel tank, a measuring installation pipeline, etc., has the advantages of simple operation, high accuracy, strong adaptability, safety and reliability, and is very suitable for regular calibration and maintenance of the flow meter.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a fuel flow meter calibration platform, comprising a fuel dispenser, a fuel tank, a measuring installation pipeline and a flow meter to be inspected installed on the measuring installation pipeline; the flow meter to be inspected is connected with an independent digital display; the oil inlet end of the fuel dispenser is connected with an oil inlet pipe; a first ball valve is installed at the end of the oil inlet pipe; the fuel tank is provided with an oil outlet pipe and an oil return pipe, and a fuel tank cover port is provided at the end of the oil return pipe; a fuel tank cap is sealed and installed on the fuel tank cover port; a second ball valve is installed at the end of the oil outlet pipe; the measuring installation pipeline is installed between the first ball valve and the second ball valve.

[0008] As a preferred technical solution of the utility model, it also includes a refrigerator; the oil tank is placed in the refrigerator; the oil outlet pipe and the oil return pipe pass through the side wall of the refrigerator respectively.

[0009] As a preferred technical solution of the utility model, the portion of the oil return pipe inside the refrigerator is configured as a coil structure.

[0010] As a preferred technical solution of the utility model, a row of upwardly concave rectangular channels is provided on the bottom surface of the oil tank.

[0011] As an optimal technical solution of the utility model, the measuring installation pipeline includes a first three-way pipe, a second three-way pipe, a third three-way pipe, a third ball valve, a fourth ball valve, a fifth ball valve and a funnel; the funnel is located above the first three-way pipe, the second three-way pipe and the flow meter to be tested; the three ends of the third three-way pipe are respectively connected to the third ball valve, the fourth ball valve and the fifth ball valve; the other end of the fifth ball valve is connected to the funnel; the other two ends of the first three-way pipe are respectively connected to the first ball valve and the flow meter to be tested; the other two ends of the fourth ball valve are respectively connected to the second ball valve and the flow meter to be tested.

[0012] As a preferred technical solution of the utility model, the portion of the oil return pipe placed outside the refrigerator is arranged obliquely upward; the upper wall of the oil tank is connected to the inclined portion of the oil return pipe through an air guide pipe.

[0013] As a preferred technical solution of the utility model, a partition is provided at the inner bottom of the oil tank.

[0014] The utility model has the following beneficial effects:

[0015] 1. The utility model can accurately verify the accuracy of the flow meter to be tested by comparing the standard flow meter with the flow meter to be tested. This method can ensure that the flow meter provides reliable measurement results in practical applications.

[0016] 2. The entire calibration platform of the utility model is designed to be easy to operate, including the steps of installing the flow meter to be inspected, filling fuel, and cycle testing, which are all very simple, making the calibration work more efficient.

[0017] 3. The utility model places the fuel tank in a refrigerator and provides a return oil pipe with a coil structure and a rectangular channel on the bottom of the fuel tank. The platform can simulate the fuel metering situation under low temperature conditions, which is very important for evaluating the performance of the flow meter under extreme temperatures.

[0018] 4. The utility model platform is not only suitable for flow meter calibration at room temperature, but also can adapt to low temperature environment, which makes its application range wider and can meet the calibration needs under more different conditions.

[0019] 5. The utility model can effectively evaluate the performance of the flow meter to be tested through actual cycle testing and comparative analysis, and ensure its reliability and accuracy in practical applications.

[0020] 6. The utility model can conveniently recover the fuel in the pipeline before disassembling the flow meter to be tested by means of a valve designed on the measuring installation pipeline, thereby realizing resource reuse and reducing waste.

[0021] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a structural schematic diagram of the fuel flow meter calibration platform of the utility model.

[0024] Figure 2 This is a schematic diagram of the structure of the oil tank in the refrigerator.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1-fuel dispenser, 2-fuel tank, 3-measuring installation pipeline, 4-flow meter to be tested, 5-oil inlet pipe, 6-first ball valve, 7-second ball valve, 8-refrigerator, 31-first three-way pipe, 32-second three-way pipe, 33-third three-way pipe, 34-third ball valve, 35-fourth ball valve, 36-fifth ball valve, 37-funnel, 21-oil outlet pipe, 22-oil return pipe, 23-tank cover port, 24-tank cover, 25-rectangular channel. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment one:

[0029] See also Figure 1-2As shown, the utility model is a fuel flow meter calibration platform, comprising a fuel dispenser 1, a fuel tank 2, a measuring installation pipeline 3, and a flow meter 4 to be inspected installed on the measuring installation pipeline 3. The flow meter 4 to be inspected is connected to an independent digital display. The oil inlet end of the fuel dispenser 1 is connected to an oil inlet pipe 5. A first ball valve 6 is installed at the end of the oil inlet pipe 5. The fuel tank 2 is provided with an oil outlet pipe 21 and an oil return pipe 22, and a tank cap port 23 is provided at the end of the oil return pipe 22. A tank cap 24 is sealed and installed on the tank cap port 23. A second ball valve 7 is installed at the end of the oil outlet pipe 21. The measuring installation pipeline 3 is installed between the first ball valve 6 and the second ball valve 7. The flow meter in the fuel dispenser 1 is a standard flow meter. The same liquid is transported through the two flow meters, and finally the readings of the two are compared to determine whether the flow meter 4 to be inspected meets the requirements. Before the experiment is started, a fixed number of liters of output can be input into the fuel dispenser 1, and the fuel output from the fuel gun of the fuel dispenser 1 can be measured with a measuring cup to determine whether the standard flow meter in the fuel dispenser 1 is in good condition.

[0030] The measuring installation pipeline 3 includes a first three-way pipe 31, a second three-way pipe 32, a third three-way pipe 33, a third ball valve 34, a fourth ball valve 35, a fifth ball valve 36 and a funnel 37. The funnel 37 is located above the first three-way pipe 31, the second three-way pipe 32 and the flow meter 4 to be tested. The three ends of the third three-way pipe 33 are respectively connected to the third ball valve 34, the fourth ball valve 35 and the fifth ball valve 36. The other end of the fifth ball valve 36 is connected to the funnel 37. The other two ends of the first three-way pipe 31 are respectively connected to the first ball valve 6 and the flow meter 4 to be tested. The other two ends of the fourth ball valve 35 are respectively connected to the second ball valve 7 and the flow meter 4 to be tested. The funnel 37 is used to add fuel after the flow meter 4 to be tested is installed. The first three-way pipe 31, the second three-way pipe 32, and the third three-way pipe 33 are used to respectively inject fuel into the two joint sections of the flow meter 4 to be tested. The third ball valve 34, the fourth ball valve 35, and the fifth ball valve 36 are used to cut off the fuel filling to ensure airtightness. In order to facilitate the recovery of the fuel in the measurement installation pipeline 3 before disassembling the flow meter 4 to be tested, a valve is installed on the first three-way pipe 31 and the second three-way pipe 32 respectively. Before disassembling the flow meter 4 to be tested, the valve is opened to drain the fuel and recycle the fuel for reuse.

[0031] At the beginning of the test, the flowmeter 4 to be tested is installed on the measuring installation pipeline 3, and then fuel is poured into the measuring installation pipeline 3, the fuel tank cap 24 is removed, and the oil gun of the fuel dispenser 1 is inserted into the return oil pipe 22. An output of more than 10 liters is input into the fuel dispenser 1 in advance to discharge the mixed gas that may exist in the pipeline. Then 100 liters of output is input into the fuel dispenser 1, and the fuel circulates between the fuel dispenser 1, the fuel tank 2, and the flowmeter 4 to be tested. After the fuel dispenser 1 stops filling, the number of liters of fuel measured by the flowmeter 4 to be tested during this cycle is compared with 100 liters to judge whether the flowmeter 4 to be tested meets the standard.

[0032] The combination of the fuel dispenser 1, the fuel tank 2, the measuring installation pipeline 3, and the oil inlet 5 is used to calibrate the flow meter to be inspected 4, and the overall equipment is easy to operate.

[0033] In order to simulate the accuracy of fuel metering under low temperature conditions, a refrigerator 8 is also provided. The fuel tank 2 is placed in the refrigerator 8. The oil outlet pipe 21 and the oil return pipe 22 pass through the side wall of the refrigerator 8 respectively. The portion of the oil return pipe 22 in the refrigerator 8 is provided with a coil structure, so that the refluxed fuel can quickly drop to the fuel temperature in the fuel tank 2.

[0034] In order to increase the cooling area of ​​the oil tank 2, a row of concave rectangular channels 25 are provided on the bottom surface of the oil tank 2. The rectangular channels 25 are provided on the bottom surface of the oil tank 2 to ensure that the oil tank 2 is fully cooled.

[0035] In order to ensure the smooth descent of the oil during the oil gun delivery to the oil return pipe 22 of the fuel dispenser 1, the part of the oil return pipe 22 placed outside the refrigerator 8 is arranged obliquely upward. The upper wall of the fuel tank 2 is connected to the inclined part of the oil return pipe 22 through an air guide pipe.

[0036] In order to reduce the impact between the oil inlet and outlet of the oil tank 2, a partition is provided at the inner bottom of the oil tank 2. The partition is located in the middle of the connection between the oil outlet pipe 21, the oil return pipe 22 and the oil tank 2. The oil outlet pipe 21 is located at the bottom of the side of the oil tank 2, and the connection of the oil return pipe 22 is located at a corner of the top surface of the oil tank 2 away from the oil outlet pipe 21 shown.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0038] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A fuel flow meter calibration platform, characterized in that: The invention comprises a fuel dispenser (1), a fuel tank (2), a measuring installation pipeline (3), and a flow meter to be tested (4) installed on the measuring installation pipeline (3); the flow meter to be tested (4) is connected to an independent digital display; The oil inlet end of the fuel dispenser (1) is connected to an oil inlet pipe (5); a first ball valve (6) is installed at the end of the oil inlet pipe (5); The oil tank (2) is provided with an oil outlet pipe (21) and an oil return pipe (22), and the end of the oil return pipe (22) is provided with an oil tank cover port (23); an oil tank cover (24) is sealably mounted on the oil tank cover port (23); and a second ball valve (7) is mounted on the end of the oil outlet pipe (21); The measuring installation pipeline (3) is installed between the first ball valve (6) and the second ball valve (7).

2. The fuel flow meter calibration platform according to claim 1, characterized in that: It also includes a refrigerator (8); the oil tank (2) is placed in the refrigerator (8); and the oil outlet pipe (21) and the oil return pipe (22) respectively pass through the side wall of the refrigerator (8).

3. The fuel flow meter calibration platform according to claim 2, characterized in that: The portion of the oil return pipe (22) inside the refrigerator (8) is configured as a coil structure.

4. The fuel flow meter calibration platform according to claim 2, characterized in that: The bottom surface of the oil tank (2) is provided with a row of upwardly concave rectangular channels (25).

5. The fuel flow meter calibration platform according to claim 1, characterized in that: The measuring installation pipeline (3) comprises a first three-way pipe (31), a second three-way pipe (32), a third three-way pipe (33), a third ball valve (34), a fourth ball valve (35), a fifth ball valve (36) and a funnel (37); the funnel (37) is located above the first three-way pipe (31), the second three-way pipe (32) and the flow meter (4) to be tested; three ends of the third three-way pipe (33) are respectively connected to the third ball valve (34), the fourth ball valve (35) and the fifth ball valve (36); the other end of the fifth ball valve (36) is connected to the funnel (37); the other two ends of the first three-way pipe (31) are respectively connected to the first ball valve (6) and the flow meter (4) to be tested; the other two ends of the fourth ball valve (35) are respectively connected to the second ball valve (7) and the flow meter (4) to be tested.

6. The fuel flow meter calibration platform according to claim 3, characterized in that: The portion of the oil return pipe (22) located outside the refrigerator (8) is arranged obliquely upward; the upper wall of the oil tank (2) is connected to the inclined portion of the oil return pipe (22) via an air guide pipe.

7. The fuel flow meter calibration platform according to claim 1, characterized in that: The inner bottom of the oil tank (2) is provided with a partition.

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