Device for checking water in oil tank

Abstract

The utility model relates to the technical field of oil tank water inspection, in particular to a device for oil tank water inspection. The device comprises a water detector, the water detector comprises a sampling container used for being connected with a water detection instrument, the sampling container is provided with a water detection port, and the water detection port is formed in the side portion of the sampling container and is close to the bottom of the sampling container; the sampling container is also provided with a sample inlet; and the water inspection detection port is detachably connected with a hydraulic quick connector. The device is connected to the water inspection opening of the crude oil tank, so that the sealing performance in the water inspection process is kept, and the problems of splashing, overflowing and oil gas dissipation caused by the fact that materials enter the water inspection opening too fast are solved; meanwhile, when crude oil enters the sampling container, the dehydration condition of the crude oil can be directly judged through an instrument connected with the water detection port, so that the accuracy and convenience of crude oil dehydration detection are improved.

Description

Technical Field

[0001] This utility model relates to the field of oil tank water detection technology, and in particular to a device for oil tank water detection. Background Technology

[0002] Currently, due to the influence of crude oil extraction processes, water inevitably remains in crude oil. This water enters the oil tank in either a free or emulsified state. Due to density differences, some of the water naturally settles to the bottom of the tank. Most of the free water at the bottom can be removed through hydrostatic pressure dehydration. The completion of dehydration is generally determined by manual water inspection. A common method is to release the medium through a water inspection line next to the tank. Operators then judge the appearance, color, and flow state of the released medium to confirm whether it contains water. The medium released in this way is recycled through the water inspection port, receiving the waste oil and wastewater generated during the inspection while also providing operators with a space to observe the medium.

[0003] However, a common problem with this method is that the medium splashes during the water retrieval process, and the retrieval port cannot completely catch the released medium, resulting in pollution of the nearby ground. Open-type retrieval ports will cause crude oil with high viscosity to adhere during use, and long-term operation will produce volatile organic compounds. In addition, water is prone to accumulate during rain, and when it mixes with the crude oil residue in the retrieval port, it will produce oily wastewater that pollutes the ground, causing odor and pollution to the surrounding environment.

[0004] Therefore, how to improve the quality of crude oil water testing, how to ensure that the water testing operation is standardized and environmentally friendly, and how to reduce the generation of sludge, wastewater and odor are urgent problems to be solved. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a device for checking water in oil tanks, which solves the problems of open water checking in the prior art, which causes volatile pollutants in oil to diffuse into the air, resulting in environmental pollution and poor water quality.

[0006] To achieve the above and other related objectives, this utility model provides a device for checking water levels in oil tanks. The device includes a water detector, which includes a sampling container for connecting to a water detection instrument. The sampling container is provided with a water detection port located on the side of the sampling container and near the bottom of the sampling container. The sampling container is also provided with a sample inlet. The water detection port is detachably connected to a first hydraulic quick connector.

[0007] In one specific embodiment, the sampling container is further provided with a sample outlet at its bottom end.

[0008] In one specific embodiment, the sampling container is provided with a first pressure relief valve.

[0009] In one specific embodiment, the sampling container is provided with a crude oil sampling port, which is detachably connected to a second hydraulic quick connector.

[0010] In one specific embodiment, the device further includes a sample inlet tube for connecting to the oil tank, one end of which is in fluid communication with the sample inlet.

[0011] In one specific implementation, the water detection port is connected to a water detection instrument.

[0012] In a more specific embodiment, the device further includes a drain pipe, one end of which is in fluid communication with the sample outlet, and the other end of which is used to connect to an external drain well.

[0013] In a more specific embodiment, the injection tube is further provided with several first valves.

[0014] Furthermore, the device also includes a temporary sampling tube, one end of which is in fluid communication with the inlet tube and the other end of which is connected to the drain pipe.

[0015] Furthermore, the sewage pipe is also equipped with several second valves.

[0016] Furthermore, at least one of the first valves is used to individually control the entry of material into the sampling container.

[0017] Furthermore, at least one of the second valves is located downstream of the connection between the temporary sampling pipe and the sewage pipe, and a temporary sampling section is formed on the sewage pipe upstream of the connection.

[0018] Furthermore, the temporary sampling tube is also equipped with several third valves.

[0019] In one specific embodiment, a pressure gauge is also connected to the sampling container.

[0020] In one specific embodiment, the sampling container is provided with a movable bottom cover.

[0021] In one specific embodiment, the sampling container is also provided with a movable top cover.

[0022] In one specific embodiment, the sampling container is also provided with an electrostatic jumper wire.

[0023] In a more specific embodiment, the movable top cover is also provided with a second pressure relief valve.

[0024] Furthermore, the second pressure relief valve is a pull-ring type pressure relief valve.

[0025] In a more specific embodiment, the movable bottom cover is a convex-face sealing neck weld flange.

[0026] In a more specific embodiment, the movable top cover includes one or more of a sealing ring top cover, a double-layer top cover, and a snap-on top cover.

[0027] In a more specific embodiment, the first pressure relief valve includes one or more of a spring-loaded pressure relief valve, a lever-operated pressure relief valve, and a pulse-operated pressure relief valve.

[0028] In one specific embodiment, the water detector is a stainless steel container.

[0029] As described above, the device for checking water levels in oil tanks according to this utility model has the following beneficial effects:

[0030] (1) The sampling container of this utility model is provided with a water detection port, which is connected to a water detection instrument. When crude oil enters the sampling container, the dehydration status of crude oil can be directly judged by the water detection instrument, thereby improving the accuracy and convenience of crude oil dehydration detection.

[0031] (2) This utility model introduces the sample evenly into the water detector through the sample inlet tube. The entire water detection process is sealed, reducing the splashing of oil and sewage during the water detection process.

[0032] (3) After the water check is completed, the operator can close the first valve, the second valve and the third valve to quickly and completely seal the water check port, so that the entire water check pipeline is sealed, completely preventing the evaporation of oil and gas and preventing rainwater from splashing into the horn.

[0033] (4) The device of this utility model also includes a temporary sampling tube. When the water detector needs to be removed for maintenance or cleaning, crude oil can be allowed to flow into and be stored in the pipeline upstream of the second valve through the temporary sampling tube, and crude oil samples can be taken in the temporary sampling section. Attached Figure Description

[0034] Figure 1 The diagram shown is a schematic diagram of a device for checking water levels in oil tanks according to this utility model.

[0035] Figure 2 The image shown is a partially enlarged schematic diagram of the water detector described in this utility model.

[0036] Figure Labels

[0037] 10 Water detector, 11 Sampling container, 111 Water detection port, 112 Sample inlet, 113 Sample outlet, 114 First pressure relief valve, 115 Crude oil sampling port, 116 Pressure gauge, 117 Movable bottom cover, 118 Movable top cover, 1181 Second pressure relief valve, 119 Static jumper wire, 20 Sample inlet tube, 30 Temporary sampling tube, 40 Drainage tube. Detailed Implementation

[0038] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0039] Please see Figures 1-2 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0040] This utility model discloses a device for checking water levels in oil tanks, such as... Figures 1-2 As shown, the device includes a water detector 10, which includes a sampling container 11 for connecting a water detection instrument. The sampling container 11 has a water detection port 111 located on its side and near the bottom. The sampling container 11 also has a sample inlet 112. The water detection port 111 is detachably connected to a first hydraulic quick-connect coupling. This coupling ensures the water detection port 111 remains sealed and allows for easy replacement of the testing instrument connected to it. The device is installed on existing oil tank water inlets, ensuring a sealed water detection process and reducing the spillage of oily or wastewater. When crude oil enters the sampling container 11, the water detection instrument connected to the water detection port 111 can directly assess the crude oil's dehydration status, improving the accuracy and convenience of crude oil dehydration detection.

[0041] In one specific embodiment, such as Figure 1 As shown, the bottom of the sampling container 11 is also provided with a sample outlet 113.

[0042] In one specific embodiment, such as Figure 1 As shown, the sampling container 11 is equipped with a first pressure relief valve 114.

[0043] In a more specific embodiment, such as Figure 1 As shown, the first pressure relief valve 114 is a passive pressure relief valve, including one or more of spring-loaded pressure relief valves, lever-type pressure relief valves, and pulse-type pressure relief valves. The first pressure relief valve 114 is used to balance the air pressure inside and outside the sampling container 11, and to prevent excessive pressure inside the sampling container 11 due to oil and gas evaporation, which could lead to damage to the sampling container 11.

[0044] In one specific embodiment, such as Figure 1 As shown, the sampling container 11 is provided with a crude oil sampling port 115, and a second hydraulic quick connector is detachably connected to the crude oil sampling port 115. The second hydraulic quick connector enables the sampling container 11 to maintain the sealing of the crude oil sampling port 115 when not sampling, and allows for convenient connection of the sampling device during sampling without leakage of crude oil from the connection between the crude oil sampling port 115 and the sampling device.

[0045] In a more specific embodiment, such as Figure 1 As shown, the first hydraulic quick coupling and the second hydraulic quick coupling are selected from one of the following: flat coupling, threaded coupling, automatic mating coupling and insert coupling.

[0046] In one specific embodiment, such as Figure 1 As shown, the water detection port 111 is connected to a water detection instrument. In a... Figure 1 In the specific embodiment shown, the water detection port 111 is connected to the threaded connection of the water detection instrument; the water detection instrument is selected from one of the following: crude oil water content analyzer, crude oil water content monitor, and conductivity analyzer.

[0047] In one specific embodiment, such as Figure 1 As shown, the device also includes a sample inlet tube 20 for connecting to the oil tank. One end of the sample inlet tube 20 is in fluid communication with the sample inlet 112, and the other end is in fluid communication with the oil tank. The sample inlet tube 20 uniformly introduces the sample into the sampling container 11, reducing the splashing of oil and wastewater during the water sampling process.

[0048] In a more specific embodiment, such as Figure 1 As shown, the sample inlet tube 20 is also equipped with several first valves. When the first valve is opened, the sample in the crude oil tank will flow into the water detector 10 due to gravity. When the first valve is closed, the sample stops entering the water detector 10 and remains sealed, thus achieving a sealed and controllable water detection process.

[0049] In a more specific embodiment, such as Figure 1 As shown, the device also includes a drain pipe 40, one end of which is in fluid communication with the sample outlet 113, and the other end is used to connect to an external drain well. The tested crude oil flows directly into the drain well through the drain pipe 40, reducing the splashing of oily and wastewater.

[0050] In a more specific embodiment, such as Figure 1 As shown, the sewage pipe 40 is also equipped with several second valves. The second valves control the start and stop of sewage discharge after water inspection, achieving sealing during the water inspection process, and preventing the oil and gas remaining in the sewage pipe from escaping into the air when the sewage space is cleaned or replaced.

[0051] Furthermore, in a situation like Figure 1 In the specific embodiment shown, the device further includes a temporary sampling tube 30, one end of which is in fluid communication with the inlet tube 20, and the other end is connected to the drain pipe 40.

[0052] Furthermore, in a situation like Figure 1 In the specific embodiment shown, the temporary sampling tube 30 is further provided with several third valves. The third valves are used to control the start and end of temporary sampling.

[0053] Furthermore, in a situation like Figure 1 In the specific embodiment shown, at least one of the first valves is used to individually control the entry of material into the sampling container 11.

[0054] Furthermore, in a situation like Figure 1 In the specific embodiment shown, at least one of the second valves is located downstream of the connection between the temporary sampling pipe 30 and the drain pipe 40, and a temporary sampling section is formed on the drain pipe 40 upstream of the connection. When the water detector 10 needs maintenance or cleaning, the second valve located downstream of the connection between the temporary sampling pipe 30 and the drain pipe 40, as well as the first valve used to individually control the material entering the sampling container 11, are closed, and the third valve is opened, allowing crude oil to flow into and be stored in the pipe upstream of the second valve, and crude oil sampling is performed in the temporary sampling section.

[0055] In one specific embodiment, such as Figures 1-2 As shown, a pressure gauge 116 is also connected to the sampling container 11. The pressure gauge monitors the internal pressure of the water-checking seal 10 in real time to ensure the safety of the water-checking process.

[0056] In one specific embodiment, such as Figure 1 As shown, the sampling container 11 has a movable bottom cover 117 at its bottom. In a... Figures 1-2In the specific embodiment shown, the movable bottom cover 117 is a convex-face sealing weld neck flange. The movable bottom cover 117 allows the sampling container 11 to be easily disassembled and inspected while maintaining a seal.

[0057] In one specific embodiment, such as Figure 1 As shown, the sampling container 11 is also equipped with a movable top cover 118. After prolonged use, it is necessary to clean the dirt on the inner wall of the water detector 10. The movable top cover 118 can be easily opened to observe the internal condition of the water detector 10 or to perform cleaning.

[0058] In a more specific embodiment, such as Figures 1-2 As shown, the movable top cover 118 includes one or more of the following: a sealing ring top cover, a double-layer top cover, and a snap-on top cover, in a manner such as... Figures 1-2 In the specific embodiment shown, the movable top cover 118 is a snap-on top cover, which makes it easier to open the water detector 10 and clean its interior.

[0059] Furthermore, in a situation like Figure 2 In the specific embodiment shown, the movable top cover 118 is further provided with a second pressure relief valve 1181, and the pressure gauge 116 is located on the movable top cover 118. Furthermore, the second pressure relief valve 1181 is an active pressure relief valve; specifically, it is a pull-ring type. Before opening the movable top cover 118, the air pressure inside the sampling container 11 needs to be manually adjusted to match the external air pressure using the second pressure relief valve 1181, and the adjustment result is detected by the pressure gauge 116 to prevent oil and gas leakage when the movable top cover 118 is opened, ensuring the safety of the cleaning process.

[0060] In one specific embodiment, such as Figure 1 As shown, the water detector 10 is also equipped with an electrostatic jumper 119. In a... Figure 1 In the specific embodiment shown, one end of the electrostatic jumper 119 is connected to the sampling container 11, and the other end is connected to the drain pipe 40. Static electricity is generated during the process of the crude oil sample entering the sampling container 11 through the injection pipe 20. The electrostatic jumper 17 conducts the static electricity on the sampling container 11 to the ground through the grounded drain pipe 40, ensuring the efficiency and safety of crude oil dehydration.

[0061] In one specific embodiment, such as Figures 1-2 As shown, the sampling container 11 is a stainless steel container. Stainless steel containers are corrosion-resistant, ensuring the safety of the water sampling process.

[0062] In summary, this utility model connects the device to the water-checking flare of the crude oil tank to prevent splashing, overflow, and oil and gas escape caused by materials entering the flare too quickly; at the same time, the water-checking instrument on the device can more accurately judge the dehydration status of the crude oil.

[0063] In summary, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0064] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A device for checking water levels in oil tanks, characterized in that, The device includes a water detector (10), which includes a sampling container (11) for connecting to a water detection instrument. The sampling container (11) is provided with a water detection port (111), which is located on the side of the sampling container (11) and close to the bottom of the sampling container (11). The sampling container (11) is also provided with a sample inlet (112). The water detection port (111) is detachably connected to a first hydraulic quick connector.

2. The apparatus according to claim 1, characterized in that, The sampling container (11) is also provided with a sample outlet (113) at its bottom end; And / or, the sampling container (11) is provided with a first pressure relief valve (114); And / or, the sampling container (11) is provided with a crude oil sampling port (115), and the crude oil sampling port (115) is detachably connected to a second hydraulic quick connector; And / or, the device further includes a sample inlet tube (20) for connecting to the oil tank, one end of the sample inlet tube (20) being in fluid communication with the sample inlet (112); And / or, the water detection port (111) is connected to a water detection instrument.

3. The apparatus according to claim 2, characterized in that, The device also includes a drain pipe (40), one end of which is in fluid communication with the sample outlet (113), and the other end is used to connect to an external drain well; And / or, the injection tube (20) is also provided with a number of first valves.

4. The apparatus according to claim 3, characterized in that, The device also includes a temporary sampling tube (30), one end of which is in fluid communication with the inlet tube (20), and the other end is connected to the drain pipe (40), and a temporary sampling section is formed on the drain pipe (40) upstream of the connection. And / or, the drain pipe (40) is also provided with several second valves.

5. The apparatus according to claim 4, characterized in that, At least one of the first valves is used to individually control the entry of material into the sampling container (11); And / or, at least one of the second valves is located downstream of the connection between the temporary sampling tube (30) and the sewage pipe (40); and / or, the temporary sampling tube (30) is also provided with a number of third valves.

6. The apparatus according to claim 1, characterized in that, The sampling container (11) is also connected to a barometer (116); and / or, the sampling container (11) is provided with a movable bottom cover (117); and / or, the sampling container (11) is also provided with a movable top cover (118); and / or, the sampling container (11) is also provided with an electrostatic jumper wire (119).

7. The apparatus according to claim 6, characterized in that, The movable top cover (118) is also equipped with a second pressure relief valve (1181).

8. The apparatus according to claim 6, characterized in that, The movable bottom cover (117) is a convex-face sealed necked welding flange; and / or, the movable top cover (118) includes one or more of a sealing ring top cover, a double-layer top cover, and a snap-on top cover.

9. The apparatus according to claim 2, characterized in that, The first pressure relief valve (114) includes one or more of a spring-loaded pressure relief valve, a lever-loaded pressure relief valve, and a pulse-loaded pressure relief valve; and / or, the sampling container (11) is a stainless steel container.

10. The apparatus according to claim 7, characterized in that, The second pressure relief valve (1181) is a pull ring type pressure relief valve.

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