A petroleum storage tank accessory leakage amount testing device

By using hydraulic jaws for adaptive fixing and inert gas nitrogen detection, the problem of existing devices being unable to adapt to accessories for storage tanks of different specifications has been solved, achieving high-precision leakage testing.

CN224594148UActive Publication Date: 2026-08-04TIANJIN DAGANG OILFIELD YUXIN QUALITY INSPECTION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN DAGANG OILFIELD YUXIN QUALITY INSPECTION CO LTD
Filing Date
2025-08-26
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing oil storage tank accessory leakage testing devices cannot adapt to storage tank accessories of different specifications, and the sensors are easily affected by environmental interference, resulting in unstable test results.

Method used

Hydraulic jaws are used to adaptively fix tank accessories of different specifications, and inert nitrogen gas is used for pressure testing to reduce environmental interference and ensure test stability and accuracy.

Benefits of technology

It enables stable fixing of accessories for storage tanks of different specifications and high-precision leakage detection, improving the reliability and accuracy of detection data.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224594148U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of petroleum storage tank accessory leakage testing device, it includes: bottom plate, the middle part top of the bottom plate is fixedly connected with work platform, the work platform is fixedly connected with fixed frame, the top of the fixed frame is fixedly connected with fixed top plate, the middle part top of the fixed top plate is fixedly connected with first hydraulic device, the front end of the first hydraulic device is fixedly connected with booster;The extension end of the first hydraulic device is fixedly connected with sealing cylinder connecting column downwards through work platform, the other end of the sealing cylinder connecting column is fixedly connected with sealing cylinder, the right middle part of the sealing cylinder is fixedly connected with measuring instrument, the left side one end of the sealing cylinder is fixedly connected with outlet valve, the device is adopted by the different specifications of hydraulic chuck to be adaptively fixed to different specifications of storage tank accessory, ensure the stability and accuracy of testing process.
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Description

Technical Field

[0001] This utility model relates to the field of oil storage tank accessories technology, and in particular to an oil storage tank accessory leakage testing device. Background Technology

[0002] Oil storage tank accessories are a series of devices installed on oil storage tanks to ensure the normal operation of the tanks, safe storage, and facilitate the entry, exit, and testing of oil products. A search revealed Chinese Patent Publication No. CN222481763U, which discloses a device for testing the leakage of oil storage tank accessories. This device relates to the field of oil storage tank leakage testing technology, including: an oil storage tank; a sealed tank accessory is installed at the right end of the oil storage tank, and a threaded groove is formed on the right side wall of the tank accessory. Oil flows onto a flow sensor, which tests the leaking oil and accurately detects the leakage amount, thus avoiding the tedious process of manual detection. The flow sensor offers high accuracy, reducing the impact of human factors on the test results and lowering the error rate. This solves the problem that testing is necessary when oil storage tank accessories leak or discharges, requiring accurate sensor detection to determine the amount of oil stored in the tank. Furthermore, the oil requires multiple discharge methods, and the discharge rate directly affects work efficiency. However, this device cannot adapt to tank accessories of different specifications, and the sensor is susceptible to environmental interference, leading to unstable test results and affecting the accuracy of leakage assessment. Utility Model Content

[0003] The purpose of this invention is to provide a leakage testing device for oil storage tank accessories, which solves the problem that ordinary measuring devices in the prior art cannot measure storage tank accessories of different specifications.

[0004] To achieve the above objectives, a leakage testing device for oil storage tank accessories is provided, comprising: a base plate, a working platform fixedly connected to the upper middle part of the base plate, a fixed frame fixedly connected to the working platform, a fixed top plate fixedly connected to the top of the fixed frame, a first hydraulic device fixedly connected to the upper middle part of the fixed top plate, and a booster fixedly connected to the front end of the first hydraulic device; The extension end of the first hydraulic device passes through the working platform and is fixedly connected to a sealing cylinder connecting column. The other end of the sealing cylinder connecting column is fixedly connected to a sealing cylinder. A measuring instrument is fixedly connected to the middle right side of the sealing cylinder, and an air outlet valve is fixedly connected to one end of the left side of the sealing cylinder.

[0005] According to the aforementioned oil storage tank accessory leakage testing device, observation windows are provided on both sides of the fixed frame, and the observation windows are made of acrylic material.

[0006] According to the aforementioned oil storage tank accessory leakage testing device, a fixed side plate is fixedly connected to one side of the fixed frame, and an operation panel is fixedly connected to the fixed side plate.

[0007] According to the aforementioned oil storage tank accessory leakage testing device, a shock-absorbing base is fixedly connected to the four corners of the bottom of the base plate, and the shock-absorbing base has an internal groove.

[0008] According to the aforementioned oil storage tank accessory leakage testing device, a spring is fixedly connected to the lower middle part of the internal slot, a limit ring is provided above the top of the internal slot, a connecting column is fixedly connected to the limit ring, and the other end of the connecting column is fixedly connected to the base plate.

[0009] According to the aforementioned oil storage tank accessory leakage testing device, the left end of the booster is fixedly connected to an air inlet pipe, the right end of the booster is fixedly connected to a connecting pipe, and the other end of the connecting pipe is fixedly connected to an air injection port.

[0010] According to the aforementioned oil storage tank accessory leakage testing device, a clamping device is fixedly connected to the middle of the working platform, and a second hydraulic device is provided in the middle of the clamping device.

[0011] According to the aforementioned oil storage tank accessory leakage testing device, a movable slot is provided on the top of the clamping device, and a claw is slidably connected to the movable slot, with an anti-slip layer laid on the claw.

[0012] The above-mentioned solution has the following beneficial effects: The device uses hydraulic grippers to adaptively fix tank accessories of different specifications, ensuring the stability and accuracy of the testing process; The device uses nitrogen as the gas for pressure detection. The stability of nitrogen effectively reduces environmental interference and improves the reliability of the detection data. At the same time, nitrogen has good inertness and does not react chemically with petroleum, ensuring a pure testing environment.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a schematic diagram of the overall structure of a leakage testing device for oil storage tank accessories according to the present invention; Figure 2This is a schematic diagram of the shock-absorbing base structure of a leakage testing device for oil storage tank accessories according to this utility model; Figure 3 This is a schematic diagram of the sealing cylinder structure of a leakage testing device for oil storage tank accessories according to this utility model; Figure 4 This is a schematic diagram of the clamping device structure of a leakage testing device for oil storage tank accessories according to this utility model.

[0015] Legend: 1. Base plate; 101. Working platform; 102. Fixed frame; 103. Observation window; 104. Fixed side plate; 105. Operation panel; 2. Fixed top plate; 201. Intensifier; 202. First hydraulic device; 203. Air inlet pipe; 204. Connecting pipe; 3. Shock-absorbing base; 301. Internal slot; 302. Spring; 303. Limiting ring; 304. Connecting column; 4. Sealing cylinder; 401. Air injection hole; 402. Sealing cylinder connecting column; 403. Measuring instrument; 404. Air outlet valve; 5. Clamping device; 501. Second hydraulic device; 502. Moving slot; 503. Claw; 504. Anti-slip layer. Detailed Implementation

[0016] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0017] Reference Figure 1-4 This utility model embodiment discloses a leakage testing device for oil storage tank accessories, comprising: a base plate 1, a working platform 101 fixedly connected to the upper middle part of the base plate 1, the base plate 1 serving as the basic load-bearing structure of the device and providing an installation reference for the working platform 101 and the shock-absorbing base 3, a fixed frame 102 fixedly connected to the working platform 101, the working platform 101 supporting the fixed frame 102 and the clamping device 5 to ensure the horizontal stability of the testing unit, a fixed top plate 2 fixedly connected to the top of the fixed frame 102, a first hydraulic device 202 fixedly connected to the upper middle part of the fixed top plate 2, a booster 201 fixedly connected to the front end of the first hydraulic device 202, the first hydraulic device 202 driving the sealing cylinder connecting column 402 through the extension end to control the lifting and lowering movement of the sealing cylinder 4, thereby achieving a tight seal with the accessory to be tested; The extension end of the first hydraulic device 202 passes through the working platform 101 and is fixedly connected to the sealing cylinder connecting column 402. The other end of the sealing cylinder connecting column 402 is fixedly connected to the sealing cylinder 4. The sealing cylinder 4 is the core test container. High-pressure gas is injected through the air injection hole 401 to simulate working conditions. Its inner cavity encloses the accessory to be tested to detect leakage. The measuring instrument 403 is fixedly connected to the middle right side of the sealing cylinder 4. The air outlet valve 404 is fixedly connected to one end of the left side of the sealing cylinder 4. After the test is completed, the air outlet valve 404 discharges the residual gas in the sealing cylinder 4 and is used for pressure relief protection. The fixed frame 102 is provided with observation windows 103 on both sides. The observation windows 103 are made of acrylic material. The acrylic material is used to provide a transparent window, which facilitates visual inspection of the internal test status of the sealed cylinder 4. A fixed side plate 104 is fixedly connected to one side of the fixed frame 102. An operation panel 105 is fixedly connected to the fixed side plate 104. The operation panel 105 integrates control buttons for adjusting the hydraulic device and monitoring data to ensure convenient operation. A shock-absorbing base 3 is fixedly connected to the four corners of the bottom of the base plate 1. The shock-absorbing base 3 has an internal slot 301 inside, which is used to install shock-absorbing springs to effectively absorb external vibrations and keep the device stable. A spring 302 is fixedly connected to the lower middle part of the internal slot 301. A limit ring 303 is provided above the top of the internal slot 301. A connecting post 304 is fixedly connected to the limit ring 303, and the other end of the connecting post 304 is fixedly connected to the base plate 1. The connecting post 304 and the base plate 1 form a stable support to ensure the shock absorption effect. The left end of the booster 201 is fixedly connected to the air inlet pipe 203, and the right end of the booster 201 is fixedly connected to the connecting pipe 204. The other end of the connecting pipe 204 is fixedly connected to the air injection port 401. The air inlet pipe 203 is connected to an external air source to provide stable high-pressure gas. The connecting pipe 204 ensures that the gas is smoothly transmitted to the sealing cylinder 4, accurately simulating the actual working conditions and ensuring the accuracy and reliability of the test results. A clamping device 5 is fixedly connected to the middle of the working platform 101. A second hydraulic device 501 is provided in the middle of the clamping device 5. The second hydraulic device 501 clamps the accessory through the jaws 503 to stabilize the accessory to be tested and ensure that it does not shift during high-pressure testing. A movable slot 502 is provided on the top of the clamping device 5. A claw 503 is slidably connected to the movable slot 502. An anti-slip layer 504 is laid on the claw 503. The anti-slip layer 504 enhances the friction and ensures that the accessory under test is stable and does not slip under high pressure, thereby improving the test accuracy.

[0018] Working principle: When this device is working, the second hydraulic device 501 of the clamping device 5 first drives the jaw 503 to move radially along the movable slot 502, and the anti-slip layer 504 adaptively clamps the accessory of the storage tank to be tested; then the first hydraulic device 202 pushes the sealing cylinder connecting column 402 to press down the sealing cylinder 4 to wrap the accessory and form a sealed cavity. At the same time, the booster 201 pressurizes inert gas such as nitrogen and injects it into the inner cavity of the sealing cylinder 4 through the connecting pipe 204 and the air injection hole 401 to simulate the working condition pressure; the measuring instrument 403 monitors the gas pressure change in real time to quantify the leakage data. During the process, the shock-absorbing base 3 absorbs vibration interference through the spring 302 and the limit ring 303. The operation panel 105 integrates control and displays data; after the test is completed, the air outlet valve 404 releases the air and pressure, and the hydraulic device resets and releases the accessory.

[0019] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An apparatus for testing the amount of leakage of an accessory of a petroleum storage tank, comprising: The base plate (1) is characterized in that a working platform (101) is fixedly connected to the upper middle part of the base plate (1), a fixed frame (102) is fixedly connected to the working platform (101), a fixed top plate (2) is fixedly connected to the top of the fixed frame (102), a first hydraulic device (202) is fixedly connected to the upper middle part of the fixed top plate (2), and a booster (201) is fixedly connected to the front end of the first hydraulic device (202). The extension end of the first hydraulic device (202) passes through the working platform (101) and is fixedly connected to a sealing cylinder connecting column (402). The other end of the sealing cylinder connecting column (402) is fixedly connected to a sealing cylinder (4). A measuring instrument (403) is fixedly connected to the middle right side of the sealing cylinder (4). An air outlet valve (404) is fixedly connected to one end of the left side of the sealing cylinder (4).

2. The petroleum storage tank accessory leakage amount testing device according to claim 1, characterized by The fixed frame (102) is provided with observation windows (103) on both sides, and the observation windows (103) are made of acrylic material.

3. The petroleum storage tank accessory leak test apparatus of claim 1, wherein, A fixed side plate (104) is fixedly connected to one side of the fixed frame (102), and an operation panel (105) is fixedly connected to the fixed side plate (104).

4. The petroleum storage tank accessory leak test apparatus of claim 1, wherein, The bottom of the base plate (1) is fixedly connected to the four corners of the bottom, and the shock-absorbing base (3) has an internal slot (301).

5. A petroleum storage tank accessory leak test apparatus according to claim 4, wherein A spring (302) is fixedly connected to the lower middle part of the internal slot (301), and a limit ring (303) is provided above the top of the internal slot (301). A connecting post (304) is fixedly connected to the limit ring (303), and the other end of the connecting post (304) is fixedly connected to the base plate (1).

6. The petroleum storage tank accessory leak test apparatus of claim 1, wherein, The left end of the booster (201) is fixedly connected to the air intake pipe (203), and the right end of the booster (201) is fixedly connected to the connecting pipe (204), with the other end of the connecting pipe (204) fixedly connected to the air injection port (401).

7. The petroleum storage tank accessory leak test apparatus of claim 1, wherein, A clamping device (5) is fixedly connected to the middle of the working platform (101), and a second hydraulic device (501) is provided in the middle of the clamping device (5).

8. The petroleum storage tank adjunct leak rate test device of claim 7, wherein, The clamping device (5) has a movable slot (502) on its top surface, and a claw (503) is slidably connected to the movable slot (502). An anti-slip layer (504) is laid on the claw (503).