A pollution prevention device for a tank measuring opening

By designing a pollution prevention device at the measurement port of the oily wastewater tank and using a diversion trough and diversion pipe to recover leaked liquid, the sampling pollution and safety issues were resolved, achieving both environmental protection and safety improvements.

CN224492291UActive Publication Date: 2026-07-14GUANGZHOU COSCO SHIPPING JINGHAI ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU COSCO SHIPPING JINGHAI ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Filing Date
2025-09-10
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Liquid leakage during sampling at the top measuring port of the oily wastewater tank causes pollution and safety risks, affecting environmental hygiene and threatening the safety of sampling workers.

Method used

Design a pollution prevention device for the measuring port of an oil tank, including a protective shell, a drainage channel and a drainage pipe, for collecting dripping liquid and returning it to the inside of the tank or for external treatment, combined with a sealing component to prevent leakage.

Benefits of technology

It effectively prevents sampling liquid from contaminating the tank surface, reduces resource waste, lowers the risk of slipping, and improves safety and sampling convenience.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses an anti -pollution device of oil tank measuring mouth belongs to the technical field of oil tank, and this anti -pollution device is applied to the measuring pipeline on the top of oil -contaminated water tank body, including protection casing, protection casing fixed mounting on the measuring mouth of measuring pipeline, the drainage groove for collecting the drip sampling liquid is arranged to the one side of measuring pipeline to protection casing, the horizontal height of drainage groove is lower than the measuring mouth, the drainage pipe of recovery sampling liquid to the inside of tank body is arranged to the bottom of drainage groove, the other end of drainage pipe is communicated tank body inside, and the inside of drainage pipe is communicated with tank body inside through check valve. Through setting protection casing, the mode of drainage groove and drainage pipe, effectively control the safety problem such as the large -area oil stain pollution of tank body surface caused by sampling drip, and the personnel easy to slip and hurt, and the extra contaminated oil is recycled into the inside of tank body through the drainage pipe, reduces the waste of contaminated oil resources.
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Description

Technical Field

[0001] This utility model relates to the field of oily waste tank technology, specifically to a pollution prevention device for the measuring port of an oil tank. Background Technology

[0002] Oily wastewater tanks are specialized containers used for collecting, storing, and initially treating oily wastewater. Their core function is to achieve initial separation of oil and water through technologies such as gravity settling and oil-floating separation, thereby reducing pollutant emissions, enabling wastewater recycling, and improving the efficiency of subsequent treatment.

[0003] In order to dynamically monitor changes in pollutant concentrations inside the oily wastewater tank and assess the equipment's operating status, workers need to regularly sample and test the tank through the oily wastewater pipe opening multiple times. However, the current oily wastewater pipe opening is located at the top of the tank, which causes leakage of the sampling liquid during manual sampling, thus polluting the area around the measuring port of the oily wastewater pipe. This pollution not only affects environmental hygiene, but the grease and other lubricating substances present can also adhere to the top of the oily wastewater tank, making it very easy for sampling workers to slip or even fall from the top of the oily wastewater tank, which is several meters high, posing a serious threat to the personal safety of the sampling workers. Utility Model Content

[0004] To address the problems mentioned in the background section, a pollution prevention device for the measuring port of an oil tank is proposed. The technical solution adopted by this utility model is as follows:

[0005] A pollution prevention device for the measuring port of an oil tank is applied to a measuring pipe on the top of the oil and wastewater tank. The device includes a protective housing, which is fixedly installed on the measuring port of the measuring pipe. The protective housing has a drainage channel on one side of the measuring pipe for collecting dripping sampled liquid, and the drainage channel is at a horizontal height lower than the measuring port.

[0006] Preferably, the bottom of the drainage channel is provided with a drainage pipe for recovering the sampled liquid, and the other end of the drainage pipe is connected to an external recovery device.

[0007] Preferably, the bottom of the drainage channel is provided with a drainage pipe for recovering the sampled liquid to the inside of the tank, and the other end of the drainage pipe is connected to the inside of the tank. The inside of the drainage pipe is connected to the inside of the tank through a one-way valve.

[0008] Preferably, the measuring pipe is provided with a mounting base on the outer periphery of the top, and the protective shell includes a lower shell and an upper shell. The lower shell is fixedly installed on the mounting base, and one side of the lower shell is provided as the drainage groove.

[0009] Preferably, an upper housing is hinged to one side of the top of the lower housing, and a handle is provided on the side of the upper housing away from the lower housing.

[0010] Preferably, the mounting base is equipped with a sealing assembly for sealing the measuring pipe, the sealing assembly including a sealing cap hinged to the mounting base on the side near the drain groove.

[0011] Preferably, a fixing pin is inserted into the side of the sealing cap away from the drainage channel.

[0012] The beneficial effects of this utility model's anti-pollution device for an oil tank measuring port are as follows:

[0013] 1. By setting up a protective shell, drainage channel and drainage pipe, the system effectively controls safety issues such as large-area oil stains on the tank surface caused by sampling leakage and easy slip injury to personnel. In addition, excess waste oil is recovered into the tank through the drainage pipe, reducing waste oil resources.

[0014] 2. By setting up storage locations for sampling tools such as dipsticks inside the protective casing, it provides convenience for measurement personnel and reduces the risk of falls. It also prevents personnel from slipping and falling from the stairs when using the stairs to go up or down the tank because they are holding sampling tools and their hands are not holding onto the railings.

[0015] 3. When sampling personnel take samples of oily wastewater layers, they need to take liquid samples from multiple locations inside the tank. After the liquid samples are poured into the relevant storage containers, they need to be temporarily stored in a certain location. Sometimes, it is also necessary to observe on-site for a period of time to see the quality of the settled oil. Therefore, the temporary work surface of the upper shell is particularly important, and it is also an important measure to provide convenience for the measurement personnel and reduce container spillage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the first cross-sectional structure of an embodiment of an anti-pollution device for an oil tank measuring port according to the present invention, showing the liquid being recycled to external treatment.

[0017] Figure 2 This is a second cross-sectional view of the liquid returning to the tank in an embodiment of the present invention;

[0018] Figure 3 This is a top view of the structure in an embodiment of the present invention.

[0019] The components are as follows: 1. Tank body; 2. Protective shell; 3. Sealing assembly; 101. Measuring pipe; 102. Mounting base; 201. Drainage channel; 202. Drainage pipe; 203. Check valve; 204. Lower shell; 205. Upper shell; 206. Handle; 301. Sealing cover; 302. Fixing pin. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] like Figure 1-3 As shown, an anti-pollution device for the measuring port of an oil tank is applied to the measuring pipe 101 on the top of the tank body 1 of the oil and wastewater tank. It includes a protective shell 2, which is fixedly installed on the measuring port of the measuring pipe 101. The protective shell 2 is provided with a drainage channel 201 for collecting dripping sampled liquid on one side of the measuring pipe 101. The horizontal height of the drainage channel 201 is lower than that of the measuring port.

[0022] In this embodiment, the protective housing 2 is installed on the measuring port, and a drainage channel 201 is provided on one side of the protective housing 2. The drainage channel 201 is horizontally lower than the measuring port, thereby isolating the measuring port from the top area of ​​the surrounding oil and wastewater tank with the protective housing 2, preventing the sampled liquid from dripping onto the oil and wastewater tank during measurement. The drainage channel 201, which is located at a lower position, collects the sampled liquid dripping inside the protective housing 2, which is convenient for subsequent processing. Furthermore, when liquid sampling is not performed under normal conditions, sampling tools such as sampling tubes can be placed inside the protective housing 2, avoiding repeated carrying of sampling tools and facilitating collection.

[0023] In one embodiment, the bottom of the drainage channel 201 is provided with a drainage pipe 202 for recovering sampled liquid, and the other end of the drainage pipe 202 is connected to an external recovery device.

[0024] In this embodiment, a drainage pipe 202 is provided at the bottom of the drainage channel 201 to recover the collected sampling liquid, thereby achieving proper disposal of the leaking sampling liquid.

[0025] In one embodiment, the bottom of the drainage channel 201 is provided with a drainage pipe 202 for recovering the sampled liquid into the tank 1. The other end of the drainage pipe 202 is connected to the inside of the tank 1, and the inside of the drainage pipe 202 is connected to the inside of the tank 1 through a one-way valve 203.

[0026] In this embodiment, in addition to collecting and recycling the sampled liquid to the outside for processing, the leaking sampled liquid can also be returned to the tank 1 for further processing through the drainage pipe 202. In order to prevent the gas in the tank 1 from overflowing from the drainage pipe 202 to the protective shell 2 or even the external environment, a one-way valve 203 is installed inside the drainage pipe 202 to ensure the one-way flow of liquid or gas.

[0027] In one embodiment, a mounting base 102 is provided on the outer periphery of the top of the measuring pipe 101, and the protective housing 2 includes a lower housing 204 and an upper housing 205. The lower housing 204 is fixedly installed on the mounting base 102, and one side of the lower housing 204 is provided as the drainage groove 201.

[0028] In this embodiment, the protective housing 2 is assembled from an upper housing 205 and a lower housing 204. The lower housing 204 is mainly provided with a drainage channel 201 for collecting and recovering the sampled liquid, while the upper housing 205 is used to prevent external weather and other factors from diluting the sampled liquid in the drainage channel 201.

[0029] In one embodiment, an upper housing 205 is hinged to one side of the top of the lower housing 204, and a handle 206 is provided on the side of the upper housing 205 away from the lower housing 204.

[0030] In this embodiment, the lower housing 204 is hinged to the upper housing 205. The upper housing 205 adopts a flip-top opening method, and the maximum flip-top rotation angle of the upper housing 205 is 180°. When the upper housing 205 is flipped to the maximum angle, the inner end face of the upper housing 205 is horizontal and facing upward. At this time, the upper housing 205 can be used to temporarily place sampling tools, sampling samples, etc., while the handle 206 facilitates the flip-top rotation of the upper housing 205.

[0031] In one embodiment, a sealing assembly 3 for sealing the measuring pipe 101 is mounted on the mounting base 102. The sealing assembly 3 includes a sealing cap 301, which is hinged to the mounting base 102 on the side near the drain groove 201.

[0032] In this embodiment, the sealing cap 301 is used to isolate the inside of the tank 1 from the external environment under normal conditions, so as to prevent the substances inside from polluting the environment. The sealing cap 301 is hinged to the side of the mounting base 102 near the drainage channel 201. When the sealing cap 301 is flipped towards the drainage channel 201, the liquid inside the tank 1 that may remain on the sealing cap 301 will drip down under the action of gravity, and then flow into the drainage channel 201 for collection.

[0033] In one embodiment, a fixing pin 302 is inserted into the side of the sealing cap 301 away from the drainage groove 201.

[0034] In this embodiment, the fixing pin 302 is inserted into the sealing cover 301, and the bottom of the fixing pin 302 is threadedly connected to the mounting base 102, thereby fixing the sealing cover 301 to the opening of the measuring pipe 101, preventing harmful gases generated by the chemical reaction of the substances inside the tank 1 from leaking from the opening and thus polluting the environment.

[0035] The specific working principle of the anti-pollution device for the measuring port of an oil tank according to this utility model is as follows:

[0036] When liquid sampling is required inside tank 1, the upper shell 205 is rotated 180° using the handle, and the sampling tool stored inside the protective shell 2 is taken out. After opening the sealing cover 301, the sampling tool is used to sample the inside of tank 1 from the measuring pipe 101. During the sampling process, the leaking sampling liquid and the liquid adhering to the sealing cover 301 are collected at the drainage channel 201 under the action of gravity. Finally, the liquid collected at the drainage channel 201 flows back into tank 1 through the drainage pipe 202 or is collected to an external device for treatment, which solves the problems mentioned in the background art regarding the pollution of the environment by liquid inside the oily wastewater tank and the threat to the personal safety of workers.

[0037] The present invention and its embodiments have been described above. This description is not restrictive. The accompanying drawings are only one embodiment of the present invention. The actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. A pollution prevention device for an oil tank measuring port, applied to a measuring pipe (101) at the top of an oil and wastewater tank body (1), characterized in that: Includes a protective housing (2), which is fixedly installed on the measuring port of the measuring pipe (101). The protective housing (2) is provided with a drainage channel (201) for collecting dripping sample liquid on one side of the measuring pipe (101). The drainage channel (201) is horizontally lower than the measuring port.

2. The anti-pollution device for the measuring port of an oil tank according to claim 1, characterized in that: The bottom of the drainage channel (201) is provided with a drainage pipe (202) for recovering sampled liquid, and the other end of the drainage pipe (202) is connected to an external recovery device.

3. The anti-pollution device for the measuring port of an oil tank according to claim 1, characterized in that: The bottom of the drainage channel (201) is provided with a drainage pipe (202) for recovering the sampled liquid to the inside of the tank (1). The other end of the drainage pipe (202) is connected to the inside of the tank (1). The inside of the drainage pipe (202) is connected to the inside of the tank (1) through a one-way valve (203).

4. The anti-pollution device for an oil tank measuring port according to claim 1, characterized in that: The measuring pipe (101) is provided with an installation base (102) on the outer periphery of the top. The protective shell (2) includes a lower shell (204) and an upper shell (205). The lower shell (204) is fixedly installed on the installation base (102), and one side of the lower shell (204) is provided as the drainage groove (201).

5. The anti-pollution device for an oil tank measuring port according to claim 4, characterized in that: The upper housing (205) is hinged to one side of the top of the lower housing (204), and a handle (206) is provided on the side of the upper housing (205) away from the lower housing (204).

6. The anti-pollution device for an oil tank measuring port according to claim 4, characterized in that: A sealing assembly (3) for sealing the measuring pipe (101) is installed on the mounting base (102). The sealing assembly (3) includes a sealing cap (301) which is hinged to the mounting base (102) on the side near the drain groove (201).

7. The anti-pollution device for an oil tank measuring port according to claim 6, characterized in that: A fixing pin (302) is inserted into the side of the sealing cap (301) away from the drainage groove (201).