CN221612210U - Oil level gauge calibration device - Google Patents

Abstract

The utility model discloses an oil level gauge checking device, which comprises a shell, a storage oil tank, a detection oil tank and a control device connected with the storage oil tank and the detection oil tank; filling oil into the detection oil tank from the storage oil tank through the control device; a plurality of throwing openings are arranged above the device corresponding to the positions of the detection oil tanks and used for throwing the immersed oil level gauge; fixing clamps are arranged around the throwing opening and used for fixing the oil level gauge; the side surface of the device is provided with a plurality of oil level gauge interfaces corresponding to the positions of the detection oil tank and used for connecting a pressure type oil level gauge; a standard oil level gauge is arranged above the device corresponding to the position of the detection oil tank; the oil level gauge measurement data is sent to the upper computer in a wired or wireless transmission mode. The integrated calibration device is designed, so that the calibration of various oil level gauges to be measured can be conveniently carried out, and the control device is used for realizing multiple measurements.

Description

Oil level gauge calibration device

Technical Field

The utility model relates to the technical field of sensor calibration, in particular to an oil level gauge calibration device.

Background Art

Oil level gauges are commonly used instruments in industrial process measurement. There are many types of oil level gauges, including contact and non-contact types according to the measurement method, buoyancy type, pressure type, etc. according to the measurement principle. Oil level gauges require initial calibration, subsequent calibration, and in-use inspection. Therefore, the entire service life of the oil level gauge requires multiple calibrations, and standard instruments and supporting calibration devices are required to calibrate the oil level gauge technical requirements.

Existing oil level gauge calibration equipment includes vertical oil level gauge calibration device, horizontal oil level gauge calibration device, vernier caliper, steel tape measure, laser length meter, pressure standard, etc., which are selected and combined into a set for calibration. The calibration process is complicated and inefficient. Therefore, there is an urgent need for a complete set of equipment to calibrate the oil level gauge simply and conveniently.

Utility Model Content

In order to solve the deficiencies in the prior art, the utility model aims to provide an oil level gauge calibration device.

In order to achieve the invention purpose of the utility model, the technical solution adopted by the utility model is:

An oil level gauge calibration device comprises a housing, a storage oil tank, a detection oil tank, and a control device connecting the storage oil tank and the detection oil tank; oil is added to the detection oil tank from the storage oil tank through the control device;

A plurality of injection ports are arranged above the device corresponding to the position of the detection oil tank for injecting an immersion oil level gauge; fixing clamps are arranged around the injection ports for fixing the oil level gauge; a plurality of oil level gauge interfaces are arranged on the side of the device corresponding to the position of the detection oil tank for connecting a pressure oil level gauge; a standard oil level gauge is arranged above the device corresponding to the position of the detection oil tank; the measurement data of the oil level gauge is sent to the host computer via wired or wireless transmission.

Further, the control device includes a detection tank oil inlet, a detection tank oil inlet valve, a detection tank oil outlet, a detection tank oil outlet valve; a storage tank oil inlet, a storage tank oil inlet valve, a storage tank oil outlet, a storage tank oil outlet valve; a pump, the pump includes an oil inlet and an oil outlet;

The oil outlet of the test oil tank is connected to the oil inlet through a plurality of connecting water pipes via the oil outlet valve of the test oil tank; the oil outlet of the storage oil tank is connected to the oil inlet through a plurality of connecting water pipes via the oil outlet valve of the storage oil tank. The oil inlet of the test oil tank is connected to the oil outlet through a plurality of connecting water pipes via the oil inlet valve of the test oil tank; the oil inlet of the storage oil tank is connected to the oil outlet through a plurality of connecting water pipes via the oil inlet valve of the storage oil tank.

Furthermore, when refueling the test tank via the storage tank, the test tank oil outlet valve and the storage tank oil inlet valve are closed, and the test tank oil inlet valve and the storage tank oil outlet valve are opened;

The oil in the storage oil tank flows from the oil outlet of the storage oil tank into the oil inlet of the pump, and under the control of the pump, flows out from the oil outlet into the oil inlet of the detection oil tank, and enters the detection oil tank.

Furthermore, when the test is completed and the oil is recovered to the storage tank, the test tank oil inlet valve and the storage tank oil outlet valve are closed, and the test tank oil outlet valve and the storage tank oil inlet valve are opened;

The oil in the detection oil tank flows from the oil outlet of the detection oil tank into the oil inlet of the pump, and under the control of the pump, flows out from the oil outlet into the oil inlet of the storage oil tank, and enters the storage oil tank.

Furthermore, the oil outlet of the storage tank is located outside the oil outlet valve of the storage tank, and a flow meter is provided to measure the amount of oil flowing out of the storage tank.

Furthermore, the water inlet and outlet control device also includes a main valve connected to the external oil inlet and the oil inlet of the pump for initially filling the storage tank with oil.

Furthermore, a transparent tube level gauge is provided on the front panel of the device corresponding to the position of the storage tank.

Furthermore, a display screen and an indicator light are arranged on the front panel of the device.

The beneficial effect of the utility model is that, compared with the prior art, the utility model designs an integrated calibration device, which can conveniently calibrate a variety of oil level gauges to be measured, and realize multiple measurements through the control device.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of an oil level gauge calibration device;

FIG2 is a top view of the oil level gauge calibration device;

FIG3 is a schematic diagram of an internal control device of an oil level gauge calibration device;

Fig. 4 is a second schematic diagram of the internal control device of the oil level gauge calibration device;

Figure markings: shell 1, storage oil tank 2, detection oil tank 3, control device 4, pump 5, main valve 6; transparent tube liquid level gauge 1-1, injection port 1-2, fixing fixture 1-3, standard oil level gauge 1-4, oil level gauge interface 1-5; storage oil tank oil inlet 2-1, storage oil tank oil inlet valve 2-2, storage oil tank oil outlet 2-3, storage oil tank oil outlet valve 2-4, flow meter 2-5; detection oil tank oil inlet 3-1, detection oil tank oil inlet valve 3-2, detection oil tank oil outlet 3-3, detection oil tank oil outlet valve 3-4; oil inlet 5-1 and oil outlet 5-2.

DETAILED DESCRIPTION

The technical solution of the utility model is further described below in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of this application.

As shown in Figure 1, the oil level gauge calibration device described in the utility model includes an integrated shell 1, a storage oil tank 2 located on the front side of the device, a detection oil tank 3 located on the rear side of the device, and a control device 4 connecting the storage oil tank 2 and the detection oil tank 3, which is used to adjust the oil level in the detection oil tank 3.

A display screen and indicator light are set on the front panel of the device to view the working process of the device in real time, and an emergency stop button is set to stop the test in an emergency. Due to the large size and weight of the device, rollers are also set at the four corners below the device for moving the device.

A transparent tube level gauge 1-1 is provided at the position of the storage oil tank on the front panel of the device, so that the remaining oil amount in the storage oil tank can be checked in real time.

As shown in FIG. 2 , the utility model is provided with a plurality of different interface types for matching oil level gauges with different interface types on the market.

A plurality of injection ports 1-2 are provided above the device at positions corresponding to the detection oil tanks for injecting the immersion oil level gauge. A fixing fixture 1-3 is provided around the injection port 1-2 for fixing the oil level gauge. The fixing fixture 1-3 is an adjustable size fixture suitable for immersion oil level gauges of different models and sizes. The working principle of the immersion oil level gauge is to measure the oil level by measuring the surface buoyancy.

A standard oil level gauge 1-4 is also provided above the device at a position corresponding to the detection oil tank. The standard oil level gauge 1-4 is fixed by a fixing device and is immersed in the storage oil tank from below.

A plurality of oil level gauge interfaces 1-5 are also provided on the side of the device corresponding to the position of the detection oil tank, which are used to connect the pressure oil level gauge. The oil level gauge interfaces 1-5 are sealed by a cover when not in use, and are connected to the pressure oil level gauge when in use. The working principle of the pressure oil level gauge is to measure the oil pressure to measure the oil level.

The reference oil level data measured by the standard oil level gauge is sent to the host computer for statistics by wireless transmission. The oil level gauge measurement data is sent to the host computer for statistics by wired or wireless transmission. The wired or wireless transmission method of the measurement data depends on the product settings of the oil level gauge to be tested.

As shown in Figure 3-4, the control device 4 includes a detection tank oil inlet 3-1, a detection tank oil inlet valve 3-2, a detection tank oil outlet 3-3, and a detection tank oil outlet valve 3-4; a storage tank oil inlet 2-1, a storage tank oil inlet valve 2-2, a storage tank oil outlet 2-3, and a storage tank oil outlet valve 2-4; a pump 5, and the pump 5 includes an oil inlet 5-1 and an oil outlet 5-2.

The test tank oil outlet 3-3 is connected to the oil inlet 5-1 through the test tank oil outlet valve 3-4 and several connecting water pipes; the storage tank oil outlet 2-3 is connected to the oil inlet 5-1 through the storage tank oil outlet valve 2-4 and several connecting water pipes. The test tank oil inlet 3-1 is connected to the oil outlet 5-2 through the test tank oil inlet valve 3-2 and several connecting water pipes; the storage tank oil inlet 2-1 is connected to the oil outlet 5-2 through the storage tank oil inlet valve 2-2 and several connecting water pipes.

When refueling the test tank through the storage tank, close the test tank oil outlet valve 3-4 and the storage tank oil inlet valve 2-2, open the test tank oil inlet valve 3-2 and the storage tank oil outlet valve 2-4. At this time, the oil in the storage tank flows from the storage tank oil outlet 2-3 into the oil inlet 5-1 of the pump 5, and under the control of the pump, flows out from the oil outlet 5-2 into the test tank oil inlet 3-1, and enters the test tank, and the oil level in the test tank increases.

The oil outlet 2-3 of the storage oil tank is located outside the oil outlet valve 2-4 of the storage oil tank, and a flow meter 2-5 is provided to measure the amount of oil flowing out of the storage oil tank.

When the test is finished and the oil is recovered to the storage tank, close the test tank inlet valve 3-2 and the storage tank outlet valve 2-4, open the test tank outlet valve 3-4 and the storage tank inlet valve 2-2. At this time, the oil in the test tank flows from the test tank outlet 3-3 into the oil inlet 5-1 of the pump 5, and under the control of the pump, flows out from the oil outlet 5-2 into the storage tank inlet 2-1, and enters the storage tank, and the oil level in the test tank is reduced.

The water inlet and outlet control device 4 also includes a main valve 6 connected to the external oil inlet and the oil inlet 5-1 of the pump 5. It is used to initially fill the storage tank with oil.

The control device 4 also includes a relay device for controlling the switch of the valve, and is controlled by a controller, which is connected to a host computer. At the same time, the controller controls the operation of the water pump.

When the oil level gauge calibration device is used to calibrate the oil level gauge, first fix the standard oil level gauge and the oil level gauge to be tested, then fill the test oil tank 3 with oil through the control device 4 as described above, and stop filling when the oil level gauge sounds an alarm.

At this time, the oil level gauge is at the lowest position and the oil level gauge sends out an alarm signal. Measure and record the oil level value at this time. Continue to add oil to the test oil tank 3, so that the oil level gradually rises to the highest oil level. At this time, the oil level gauge sends out an alarm signal. Measure and record the oil level value at this time. Then drain the oil again to reach a certain specified oil volume, and measure and record the oil level value at this time.

The beneficial effect of the utility model is that, compared with the prior art, the utility model designs an integrated calibration device, which can conveniently calibrate a variety of oil level gauges to be measured, and realize multiple measurements through the control device.

The applicant of the utility model has made a detailed explanation and description of the implementation examples of the utility model in conjunction with the drawings in the specification. However, those skilled in the art should understand that the above implementation examples are only preferred implementation schemes of the utility model, and the detailed description is only to help readers better understand the spirit of the utility model, and it is not a limitation on the protection scope of the utility model. On the contrary, any improvements or modifications based on the inventive spirit of the utility model should fall within the protection scope of the utility model.

Claims (8)

1. An oil level gauge calibration device, characterized in that it comprises a housing (1), a storage oil tank (2), a detection oil tank (3), and a control device (4) connected to the storage oil tank (2) and the detection oil tank (3); oil is added from the storage oil tank (2) to the detection oil tank (3) through the control device (4); A plurality of injection ports (1-2) are arranged above the device at a position corresponding to the detection oil tank, for injecting an immersion oil level gauge; fixing fixtures (1-3) are arranged around the injection ports (1-2), for fixing the oil level gauge; a plurality of oil level gauge interfaces (1-5) are arranged on the side of the device at a position corresponding to the detection oil tank, for connecting a pressure oil level gauge; a standard oil level gauge (1-4) is arranged above the device at a position corresponding to the detection oil tank; and the oil level gauge measurement data is sent to a host computer via wired or wireless transmission. 2. The oil level gauge calibration device according to claim 1 is characterized in that: the control device (4) comprises a detection tank oil inlet (3-1), a detection tank oil inlet valve (3-2), a detection tank oil outlet (3-3), and a detection tank oil outlet valve (3-4); a storage tank oil inlet (2-1), a storage tank oil inlet valve (2-2), a storage tank oil outlet (2-3), and a storage tank oil outlet valve (2-4); a pump (5), the pump (5) comprising an oil inlet (5-1) and an oil outlet (5-2); The detection oil tank oil outlet (3-3) is connected to the oil inlet (5-1) via a detection oil tank oil outlet valve (3-4) through a plurality of connecting water pipes; the storage oil tank oil outlet (2-3) is connected to the oil inlet (5-1) via a storage oil tank oil outlet valve (2-4) through a plurality of connecting water pipes; the detection oil tank oil inlet (3-1) is connected to the oil outlet (5-2) via a detection oil tank oil inlet valve (3-2) through a plurality of connecting water pipes; the storage oil tank oil inlet (2-1) is connected to the oil outlet (5-2) via a storage oil tank oil inlet valve (2-2) through a plurality of connecting water pipes. 3. The oil level gauge calibration device according to claim 2 is characterized in that: when refueling the detection oil tank through the storage oil tank, the detection oil tank oil outlet valve (3-4) and the storage oil tank oil inlet valve (2-2) are closed, and the detection oil tank oil inlet valve (3-2) and the storage oil tank oil outlet valve (2-4) are opened; The oil in the storage oil tank flows from the storage oil tank oil outlet (2-3) into the oil inlet (5-1) of the pump (5), and under the control of the pump, flows out from the oil outlet (5-2) into the detection oil tank oil inlet (3-1), and enters the detection oil tank. 4. The oil level gauge calibration device according to claim 2 is characterized in that: when the detection is completed and the oil is recovered to the storage tank, the detection tank oil inlet valve (3-2) and the storage tank oil outlet valve (2-4) are closed, and the detection tank oil outlet valve (3-4) and the storage tank oil inlet valve (2-2) are opened; The oil in the detection oil tank flows from the detection oil tank oil outlet (3-3) into the oil inlet (5-1) of the pump (5), and under the control of the pump, flows out from the oil outlet (5-2) into the storage oil tank oil inlet (2-1), and enters the storage oil tank. 5. The oil level gauge calibration device according to claim 2 is characterized in that: the oil outlet (2-3) of the storage oil tank is located outside the oil outlet valve (2-4) of the storage oil tank, and a flow meter (2-5) is provided to measure the amount of oil flowing out of the storage oil tank. 6. The oil level gauge calibration device according to claim 2 is characterized in that the water inlet and outlet control device (4) also includes a main valve (6) connected to an external oil inlet and connected to an oil inlet (5-1) of a pump (5) for initially refueling the storage tank. 7. The oil level gauge calibration device according to claim 1 is characterized in that a transparent tube liquid level gauge (1-1) is provided at a position on the front panel of the device corresponding to the storage tank. 8. The oil level gauge calibration device according to claim 1 is characterized in that a display screen and an indicator light are provided on the front panel of the device.