Device for measuring density on line during oil unloading of gas station

Abstract

The utility model relates to the technical field of oil quality detection, in particular to a device for measuring density and temperature on line during oil discharge of a gas station, which comprises a transparent glass measuring cylinder, a hydraulic quick connector is arranged on the side face of the lower end of the transparent glass measuring cylinder, and one end of a quick connection hose is connected to the hydraulic quick connector. And a sealing cover and an anti-overflow valve are arranged at the top of the transparent glass measuring cylinder. After density and temperature testing is completed, the sample oil can be sucked back to the oil tank along with negative pressure generated after oil discharging. The overall design of the device can effectively ensure that an oil sample is not in contact with external air in the whole measurement process, and the influence of external factors on a measurement result is avoided, so that the accuracy and the consistency of measurement data are improved, operators are protected to be healthier without inhaling oil gas, and the operators are protected to be safer without exposing oil in the air; meanwhile, continuous and real-time density and temperature measurement is achieved, instant feedback is provided, the detection efficiency is improved, and health and safety are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil quality detection technical field especially relates to a device of on -line measurement density when oil station unloading. BACKGROUND

[0002] In the daily operation of the gas station, the quality control of oil is the key link to ensure safety, environmental protection and customer satisfaction, in order to ensure that the oil meets the established quality standards, before the oil tank truck unloading operation, the density of oil must be measured, density as one of the important physical properties of oil, directly reflects the purity and composition of oil, is crucial to identify adulteration, moisture and other pollutants.

[0003] At present, most gas stations still rely on traditional density measurement method, that is, before unloading, a certain amount of oil sample is taken out from the oil tank truck by the sampler, and then the on-site measurement is carried out by the staff using measuring cup and handheld density meter and other tools, although this method has certain convenience and immediacy, but it has the following significant deficiencies: because the oil sample needs to be exposed to the air for measurement, it is easy to be affected by external factors, such as temperature fluctuation, humidity change, dust and particulate matter in the air, etc., these factors may cause the measurement result to deviate, affect the accuracy and reliability of the data, in addition, the operator contacts the oil sample in the sampling and measurement process, not only increases the risk of inhaling harmful volatile substances, but also may cause health problems due to skin contact, in addition, improper handling of oil sample may also cause environmental pollution and resource waste.

[0004] Therefore, there is an urgent need for an efficient, safe and accurate device for on-line measurement of density when oil is unloaded at gas station. CONTENT OF THE UTILITY MODEL

[0005] In order to overcome the shortcomings of low measurement accuracy, unsafe operation, great environmental exposure risk and low efficiency of the traditional density measurement method in the prior art, the utility model provides an efficient, safe and accurate device for on-line measurement of density when oil is unloaded at gas station.

[0006] To achieve the above problems, the utility model discloses the following technical solutions: a device is provided for measuring the density of oil during unloading at a gas station, comprising a transparent glass measuring cylinder, a hydraulic quick connector is provided on the lower end side of the transparent glass measuring cylinder, one end of the hydraulic quick connector is connected with a quick-connection hose, a sealing cover is provided on the top of the transparent glass measuring cylinder, a density measuring gauge is installed through the sealing cover, the lower end of the density measuring gauge is located inside the transparent glass measuring cylinder and can vertically float in the liquid, a guide groove is formed in the inner wall of the transparent glass measuring cylinder, a float is slidably arranged in the guide groove, a pressure relief switch and a ball check valve are provided on the top of the sealing cover, the other end of the quick-connection hose is connected with an unloading port quick connector, the unloading port quick connector has male and female ports, the upper end can be connected with a diesel oil unloading port, and the lower end can be connected with a gasoline unloading port, an oil inlet is provided on the side surface of the middle part of the unloading port quick connector, the unloading port quick connector is communicated with the quick-connection hose through the oil inlet, locking buckles are rotatably installed on the two sides of the upper end of the unloading port quick connector through shafts, a connecting block is fixedly connected to the middle part of the inside of the unloading port quick connector, tapered plugs are slidably arranged on the top and bottom of the connecting block, and springs are arranged between the tapered plugs and the connecting block.

[0007] Optionally, a support seat is arranged on the lower part of the transparent glass measuring cylinder, and a bubble tube is installed on the support seat.

[0008] Optionally, a ring-shaped water spraying pipe is installed in the inside of the unloading port quick connector, the water inlet of the ring-shaped water spraying pipe extends out of the outside of the unloading port quick connector, and a water inlet valve is connected to the water inlet, and a water pump is installed on the other end of the water inlet valve.

[0009] Optionally, a corrosion-proof sleeve ring is arranged between the tapered plug and the connecting block and covers the area where the spring is located.

[0010] Optionally, a rubber ring is arranged on the surface of the tapered plug.

[0011] Optionally, a label plate is arranged on the outside of the transparent glass measuring cylinder.

[0012] Compared with the prior art, the utility model has the following technical effects: 1. The overall design of the device can effectively ensure that the oil sample does not come into contact with the external air during the entire measurement process, avoid the influence of external factors on the measurement results, thereby improving the accuracy and consistency of the measurement data, protecting the health and safety of the operator, and realizing continuous and real-time density measurement, providing instant feedback and improving the detection efficiency.

[0013] 2. The arrangement of the support seat and the bubble tube can effectively help the operator to adjust and confirm the horizontally placed state of the measuring cylinder, which not only improves the accuracy of the measurement process, but also simplifies the operation process, so that the entire measurement work is more efficient, safe and reliable.

[0014] 3. By installing a ring-shaped water spraying pipe inside the oil drain port quick connector, and equipping corresponding water inlet valve and water pump, effective cleaning of the inside of the oil drain port quick connector can be realized, which not only improves the cleanliness and hygiene standard of the equipment, but also prolongs the service life of the equipment and reduces the maintenance cost caused by oil residue. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the three-dimensional cross-sectional structure of the transparent glass measuring cylinder of the utility model.

[0017] Figure 3 It is a schematic diagram of the three-dimensional cross-sectional structure of the oil drain port quick connector of the utility model.

[0018] Figure 4 It is a schematic diagram of the three-dimensional cross-sectional structure of the connecting block, conical plug and spring of the utility model.

[0019] Figure 5 It is a schematic diagram of the three-dimensional structure of the ring-shaped water spraying pipe, water inlet valve and water pump of the utility model.

[0020] Markings in the drawings: 1 - transparent glass measuring cylinder, 101 - hydraulic quick connector, 2 - quick-connection hose, 3 - sealing cover, 4 - density measuring meter, 5 - guide groove, 6 - floating block, 7 - floating ball check valve, 701 - pressure relief switch, 8 - oil drain port quick connector, 9 - rotating shaft, 10 - locking buckle, 11 - oil inlet, 12 - connecting block, 13 - conical plug, 14 - spring, 15 - support seat, 16 - bubble tube, 17 - ring-shaped water spraying pipe, 1701 - water inlet valve, 18 - water pump, 19 - corrosion-resistant sleeve ring, 20 - rubber ring, 21 - label plate.

[0021]

[0022]

[0023] DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] Embodiment 1: Please refer to Figure 1 -

[0026] Figure 4 ​​​The utility model provides a kind of device for measuring density on line when oil station is unloaded, including transparent glass measuring cylinder 1, the transparent glass measuring cylinder 1 outside is provided with label plate 21, operator can label plate 21 on put in the label with measured time, date or other relevant information, facilitate subsequent data management, the lower end left side of the transparent glass measuring cylinder 1 is equipped with hydraulic quick coupling 101, one end of quick-connection hose 2 is connected on the hydraulic quick coupling 101, the transparent glass measuring cylinder 1 top is provided with sealing cover 3, density measuring meter 4 is installed through sealing cover 3, the lower end of density measuring meter 4 is located in the transparent glass measuring cylinder 1 inside, and can vertically float in liquid, guide groove 5 is opened in the inner wall of the transparent glass measuring cylinder 1, float 6 is slidably arranged on the guide groove 5, for indicating liquid level position, sealing cover 3 top is equipped with pressure relief switch 701 and ball check valve 7, the other end of quick-connection hose 2 is connected with oil outlet quick coupling 8, the oil outlet quick coupling 8 has male and female ports, and the upper end can be connected with diesel oil outlet, and the lower end can be connected with gasoline outlet, oil inlet 11 is arranged on the side surface of the middle part of the oil outlet quick coupling 8, and the oil outlet quick coupling 8 is communicated with quick-connection hose 2 through oil inlet 11, locking buckle 10 is rotatably installed on the both sides of the upper end of the oil outlet quick coupling 8 through pivot 9, so as to realize safety locking when connecting diesel oil outlet, connecting block 12 is fixedly connected in the middle position of the oil outlet quick coupling 8, and taper plug 13 is slidably arranged on the top and bottom of connecting block 12, for closing both ends of the oil outlet quick coupling 8 in unconnected state, rubber ring 20 is arranged on the surface of taper plug 13, a tight sealing layer can be formed between taper plug 13 and the inner wall of the oil outlet quick coupling 8, to prevent oil leakage under high pressure, spring 14 is arranged between taper plug 13 and connecting block 12, the elasticity of spring 14 helps to keep the tight contact between taper plug 13 and the oil outlet quick coupling 8, to ensure that the channel is completely closed in non-working state, anticorrosion sleeve ring 19 is sleeved between taper plug 13 and connecting block 12, covering the area where spring 14 is located, which can effectively prevent oil, moisture and other corrosive substances from contacting spring 14, prolong the service life of spring 14, reduce maintenance requirements.

[0027] The method for using the device: first, connect the quick connector 8 with the oil tank truck, for diesel, connect the upper end of the quick connector with the diesel unloading port, after the connection is completed, pull down the locking buckle 10 to make it rotate downward around the rotating shaft 9, so as to lock the quick connector and the unloading port, for gasoline, directly connect the lower end with the gasoline unloading port, in this process, the tapered plug 13 will be compressed due to the pressure, so as to compress the elastic component, open the channel between the quick connector 8 and the oil inlet 11, after all the connection work is completed, open the oil valve of the oil tank truck, let the oil sample enter the transparent glass measuring cylinder 1 through the quick connector hose 2, as the oil sample flows in, the float 6 will rise along the guide groove 5 and indicate the current liquid level, after collecting enough oil sample, close the oil valve and stop the oil sample from flowing in, then open the pressure relief switch 701 to balance the atmospheric pressure inside and outside the transparent glass measuring cylinder 1, at this time, the density measuring meter 4 will be vertically suspended in the oil sample, the user observes the scale number parallel to the density measuring meter 4, reads the density value of the oil sample according to the scale line, at the same time, the quality of the oil sample can be directly checked through the transparent glass measuring cylinder 1, such as whether there are impurities, after the measurement is completed, open the float check valve 7 and connect it to the siphon device to safely return the oil sample in the transparent glass measuring cylinder 1 to the oil tank, finally, disassemble the quick connector 8 of the unloading port, and end the density measurement operation, the whole process is not only fast and convenient, but also avoids exposing the oil sample to the air, ensuring the safety of the staff and the accuracy of the measurement results.

[0028] Example 2: Based on example 1, please refer to Figure 2 , the lower part of the transparent glass measuring cylinder 1 is provided with a support seat 15, and a bubble tube 16 is installed on the support seat 15, which is used to assist in adjusting and confirming the horizontal placement state of the glass measuring cylinder.

[0029] When placing the transparent glass measuring cylinder 1, ensure that the transparent glass measuring cylinder 1 is stably placed on the support seat 15, then observe the position of the bubble in the bubble tube 16, if the bubble is exactly in the center of the horizontal scale line, it means that the cylinder has been placed horizontally and does not need to be adjusted further, if the bubble deviates to the left side, it means that the right side is higher and the left side is lower, if the bubble deviates to the right side, it means that the left side is higher and the right side is lower, according to the deviation direction of the bubble, slightly adjust the position of the cylinder until the bubble returns to the center of the horizontal scale line, after adjustment, check the bubble tube 16 again to ensure that the bubble is stably located in the central position, this step is very important, because only when the cylinder is completely horizontal, the density measuring meter 4 can accurately float in the oil sample, thereby ensuring the accuracy of the measurement results, once it is confirmed that the cylinder is placed horizontally without error, the collection of the oil sample and the density measurement can continue according to the previous steps.

[0030] Please refer to Figure 3 and Figure 5The annular water spraying pipe 17 is arranged around the inner wall of the oil discharge quick connector 8, and is used for thoroughly cleaning the inside. The water inlet of the annular water spraying pipe 17 extends outside the oil discharge quick connector 8 and is connected with a water inlet valve 1701. The other end of the water inlet valve 1701 is provided with a water pump 18. The water pump 18 can provide the required water flow for cleaning through an external water source.

[0031] After the oil density measurement is completed and the oil discharge quick connector 8 is removed, first, ensure that it has been completely separated from the oil discharge port of the oil tank truck and placed in a safe and convenient position. Connect the water inlet of the water pump 18 to a reliable clean water source, open the water inlet valve 1701, and start the water pump 18 to pump clean water into the annular water spraying pipe 17, so that the annular water spraying pipe 17 generates uniform water flow to comprehensively flush the inside of the oil discharge quick connector 8. The water flow will be sprayed out of the multiple nozzles of the annular water spraying pipe 17, covering the entire inner wall, including hard-to-reach corners. During the cleaning process, the opening of the water inlet valve 1701 can be adjusted as needed to control the water flow and pressure, ensuring the best cleaning effect. After cleaning is completed, close the water inlet valve 1701 and stop the water pump 18, and then drain the waste water in the oil discharge quick connector 8.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and not to limit the protection scope of the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present application.

Claims

1. A device for measuring density on-line during unloading of a fuel station, comprising a transparent glass measuring cylinder (1), characterized in that The lower end side of the transparent glass measuring cylinder (1) is equipped with a hydraulic quick connector (101), one end of a quick connecting hose (2) is connected to the hydraulic quick connector (101), a sealing cover (3) is arranged at the top of the transparent glass measuring cylinder (1), a density measuring meter (4) is installed through the sealing cover (3), the lower end of the density measuring meter (4) is located inside the transparent glass measuring cylinder (1) and can vertically float in the liquid, a guide groove (5) is opened in the inner wall of the transparent glass measuring cylinder (1), a float (6) is slidably arranged on the guide groove (5), the top of the sealing cover (3) is equipped with a pressure relief switch (701) and a floating ball check valve (7), the other end of the quick connecting hose (2) is connected with a oil outlet quick connector (8), the oil outlet quick connector (8) has male and female ports, the upper end can be connected with a diesel oil outlet, and the lower end can be connected with a gasoline outlet, an oil inlet (11) is arranged on the side of the middle part of the oil outlet quick connector (8), the oil outlet quick connector (8) communicates with the quick connecting hose (2) through the oil inlet (11), lock buckles (10) are rotatably installed on the both sides of the upper end of the oil outlet quick connector (8) through shafts (9), a connecting block (12) is fixedly connected to the middle position inside the oil outlet quick connector (8), taper plugs (13) are slidably arranged on the top and bottom of the connecting block (12), springs (14) are arranged between the taper plugs (13) and the connecting block (12).

2. A device for measuring the density of fuel on-line at a fuel dispensing station during dispensing according to claim 1, characterized in that A bubble tube (16) is installed on the support seat (15) arranged at the lower part of the transparent glass measuring cylinder (1).

3. A device for measuring the density of fuel on-line at a fuel dispensing station during dispensing according to claim 2, characterized in that An annular water spraying pipe (17) is installed inside the oil outlet quick connector (8), the water inlet of the annular water spraying pipe (17) extends outside the oil outlet quick connector (8) and is connected with a water inlet valve (1701), a water pump (18) is installed at the other end of the water inlet valve (1701).

4. A device for measuring the density of fuel on-line at a fuel dispensing station during dispensing according to claim 3, characterized in that A corrosion-proof sleeve ring (19) is sleeved between the taper plug (13) and the connecting block (12) and covers the area where the spring (14) is located.

5. A device for measuring the density of fuel on-line at a fuel dispensing station during unloading of the tank according to claim 4, characterized in that A rubber ring (20) is arranged on the surface of the taper plug (13).

6. A device for measuring the density of fuel on-line at a fuel dispensing station during unloading of the station according to claim 5, characterized in that A label plate (21) is arranged outside the transparent glass measuring cylinder (1). A label plate (21) is arranged outside the transparent glass measuring cylinder (1).

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