Closed oil discharge device

Abstract

The utility model belongs to the technical field of oil unloading devices, and discloses a closed oil unloading device which comprises an oil storage tank buried underground. The oil unloading well is buried underground, an operation well is arranged in the oil unloading well, the upper end of the operation well is in threaded connection with a well lid, the well lid is exposed out of the ground, a pneumatic diaphragm pump is fixedly installed in the operation well, an oil inlet pipe and a drainage well are fixedly installed at the input end of the pneumatic diaphragm pump, and the pneumatic diaphragm pump is buried underground. According to the closed oil unloading device, when oil unloading is needed, the oil tank truck only needs to be moved to one side of the oil unloading well, the oil inlet pipe is connected with the oil unloading pipe of the oil tank truck, the oil unloading pipe is connected with the operation well, and the operation well is fixedly connected with one side of the oil unloading well through a water pipe. After connection is completed, the pneumatic diaphragm pump works to pump oil in the oil tank truck into the oil storage tank through the oil outlet pipe, so that oil unloading is achieved, the oil unloading well and the oil storage tank are installed underground, the occupied area of equipment is greatly reduced, and meanwhile a slope does not need to be arranged for oil unloading.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil unloading devices, in particular to a closed oil unloading device. Background Art

[0002] The crude oil collected by the oil production plant is collected by pipeline or automobile transportation according to the difference in production volume after simple processing and then collected to the joint station. Since the distance between domestic oil production points is relatively far, the pipeline transportation method is costly, and most of them are transported by automobile. Therefore, the research on the loading and unloading technology of crude oil is very important. Unloading is an important link in the transportation of crude oil. At present, the traditional unloading methods include open unloading and semi-closed unloading. The tank truck unloading method currently used is to connect the tank truck to the unloading tank. The medium in the tank truck flows into the unloading tank to the lower part by relying on the slope, and the gas flowing into the liquid level space of the unloading tank forms a closed pressure system with the liquid in the tank truck, forming a state of balance. The crude oil in the tank truck cannot flow into the unloading tank. It can only rely on the exhaust valve on the unloading tank to discharge the gas intermittently into the air through the exhaust pipe and the flame-blocking breathing valve to discharge the gas in the liquid level space of the unloading tank. The liquid in the tank truck can automatically flow into the unloading tank through the unloading pipeline. After the liquid reaches the set liquid level, the unloading pump is turned on to input the crude oil into the gathering and transportation system.

[0003] For example, a high-efficiency, intelligent, and closed oil unloading device and method is disclosed with publication number CN113735051A. This oil unloading device requires the tanker truck to be driven onto a slope during the oil unloading process. At the same time, the oil unloading equipment occupies a large area. For smaller gas stations, it is impossible to provide the space required for the oil unloading equipment. In order to solve the above problems, a closed oil unloading device is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a closed oil unloading device in order to solve the above problems.

[0005] The technical solution adopted by the utility model is as follows: a closed oil unloading device, comprising:

[0006] An oil storage tank, which is buried underground;

[0007] An oil unloading well is buried underground, an operating well is arranged inside the oil unloading well, a well cover is threadedly connected to the upper end of the operating well, the well cover is exposed on the ground, a pneumatic diaphragm pump is fixedly installed inside the operating well, an oil inlet pipe is fixedly installed at the input end of the pneumatic diaphragm pump, an oil outlet pipe is fixedly installed at the output end of the pneumatic diaphragm pump, and the oil outlet pipe is fixedly connected to the oil storage tank at the side away from the pneumatic diaphragm pump;

[0008] A drainage well is buried underground, and the operating well is fixedly connected to one side of the oil unloading well through a water pipe.

[0009] Through the above technical solution, when it is necessary to unload the oil, the tanker truck only needs to be moved to one side of the oil unloading well and the oil inlet pipe needs to be connected to the oil unloading pipe of the tanker truck. After the connection is completed, the pneumatic diaphragm pump will work to draw the oil in the tanker truck into the oil storage tank through the oil outlet pipe, thereby realizing the oil unloading. By installing the oil unloading well and the oil storage tank underground, the footprint of the equipment is greatly solved, and there is no need to set up a slope for oil unloading.

[0010] In a preferred embodiment, an oil discharge pipe quick connector is fixedly installed at the end of the oil inlet pipe.

[0011] Through the above technical solution, the oil inlet pipe and the oil unloading pipe are conveniently connected by providing an oil unloading pipe quick connector.

[0012] In a preferred embodiment, a drainage cavity is provided between the oil unloading well and the operating well.

[0013] Through the above technical solution, when it rains, rainwater collected on the ground can enter the oil unloading well through the drainage cavity, preventing rainwater from entering the operating well.

[0014] In a preferred embodiment, a plurality of water permeable holes are opened on the outer side of the upper surface of the manhole cover, and the water permeable holes are located directly above the drainage cavity.

[0015] Through the above technical solution, rainwater can directly enter the drainage cavity through the water-permeable holes.

[0016] In a preferred embodiment, the upper edge of the inner wall of the oil unloading well is a slope structure.

[0017] The above technical solution makes it easier for rainwater to enter the oil unloading well.

[0018] In a preferred embodiment, the diameter of the lower end of the manhole cover is the same as the diameter of the oil unloading well.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are as follows: the utility model provides a closed oil unloading device.

[0020] When oil unloading is required, just move the tanker to one side of the oil unloading well and connect the oil inlet pipe to the oil unloading pipe of the tanker. After the connection is completed, the pneumatic diaphragm pump will work to pump the oil in the tanker into the oil storage tank through the oil outlet pipe, thereby realizing oil unloading. By installing the oil unloading well and the oil storage tank underground, the footprint of the equipment is greatly solved, and there is no need to set up a slope for oil unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the manhole cover in the utility model.

[0023] Markings in the figure: 1-oil storage tank; 2-oil unloading well; 3-operating well; 4-pneumatic diaphragm pump; 5-oil inlet pipe; 6-oil outlet pipe; 7-oil unloading pipe connector; 8-well cover; 9-drainage chamber; 10-drainage well; 11-water permeable hole. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The following will be combined Figure 1-2 A closed oil unloading device according to an embodiment of the utility model is described in detail.

[0026] Example:

[0027] A closed oil unloading device, comprising:

[0028] An oil storage tank 1, which is buried underground;

[0029] The oil unloading well 2 is buried underground, and an operating well 3 is arranged inside the oil unloading well 2. A well cover 8 is threadedly connected to the upper end of the operating well 3, and the well cover 8 is exposed on the ground. An air-operated diaphragm pump 4 is fixedly installed inside the operating well 3. An oil inlet pipe 5 is fixedly installed at the input end of the air-operated diaphragm pump 4, and an oil unloading pipe quick connector 7 is fixedly installed at the end of the oil inlet pipe 5. The oil unloading pipe quick connector 7 is arranged to facilitate the connection of the oil inlet pipe 5 with the oil unloading pipe. An oil outlet pipe 6 is fixedly installed at the output end of the air-operated diaphragm pump 4, and the oil outlet pipe 6 is fixedly connected to the oil storage tank 1 at the side away from the air-operated diaphragm pump 4. When it is necessary to unload the oil, it is only necessary to move the tank truck to one side of the oil unloading well and connect the oil inlet pipe 5 with the oil unloading pipe of the tank truck. After the connection is completed, the air-operated diaphragm pump 4 works to draw the oil in the tank truck into the oil storage tank 1 through the oil outlet pipe 6, so as to realize the oil unloading. By installing the oil unloading well 2 and the oil storage tank 1 underground, the footprint of the equipment is greatly solved, and there is no need to set a slope for unloading the oil.

[0030] A drainage well 10 is buried underground, and a drainage cavity 9 is provided between the oil unloading well 2 and the operating well 3. When it rains, rainwater collected on the ground can enter the oil unloading well 2 through the drainage cavity 9 to prevent rainwater from entering the operating well 3. The upper edge of the inner wall of the oil unloading well 2 is a slope structure, which is convenient for rainwater to enter the oil unloading well 2. The diameter of the lower end of the manhole cover 8 is the same as the diameter of the oil unloading well 2. A plurality of water permeable holes 11 are provided on the outer side of the upper surface of the manhole cover 8. The water permeable holes 11 are located directly above the drainage cavity 9. Rainwater can directly enter the drainage cavity 9 through the water permeable holes 11. The operating well 3 is fixedly connected to one side of the oil unloading well 2 through a water pipe.

[0031] Working principle:

[0032] When it is necessary to unload the oil, it is only necessary to move the tanker to one side of the oil unloading well and connect the oil inlet pipe 5 to the oil unloading pipe of the tanker. After the connection is completed, the pneumatic diaphragm pump 4 will work to pump the oil in the tanker into the oil storage tank 1 through the oil outlet pipe 6, thereby realizing the oil unloading. By installing the oil unloading well 2 and the oil storage tank 1 underground, the footprint of the equipment is greatly solved, and there is no need to set up a slope for oil unloading.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A closed oil unloading device, characterized in that: include: An oil storage tank (1) buried underground; An oil unloading well (2) is buried underground, an operating well (3) is arranged inside the oil unloading well (2), a well cover (8) is threadedly connected to the upper end of the operating well (3), the well cover (8) is exposed above the ground, an air-operated diaphragm pump (4) is fixedly installed inside the operating well (3), an oil inlet pipe (5) is fixedly installed at the input end of the air-operated diaphragm pump (4), an oil outlet pipe (6) is fixedly installed at the output end of the air-operated diaphragm pump (4), and the oil outlet pipe (6) is fixedly connected to the oil storage tank (1) at a side away from the air-operated diaphragm pump (4); The drainage well (10) is buried underground, and the operating well (3) is fixedly connected to one side of the oil unloading well (2) through a water pipe.

2. A closed oil unloading device as claimed in claim 1, characterized in that: An oil discharge pipe quick connector (7) is fixedly mounted on the end of the oil inlet pipe (5).

3. A closed oil unloading device as claimed in claim 1, characterized in that: A drainage cavity (9) is provided between the oil unloading well (2) and the operating well (3).

4. A closed oil unloading device as claimed in claim 1, characterized in that: A plurality of water permeable holes (11) are provided on the outer side of the upper surface of the manhole cover (8), and the water permeable holes (11) are located directly above the drainage cavity (9).

5. A closed oil unloading device as claimed in claim 1, characterized in that: The upper edge of the inner wall of the oil unloading well (2) is a sloped structure.

6. A closed oil unloading device as claimed in claim 1, characterized in that: The diameter of the lower end of the well cover (8) is the same as the diameter of the oil unloading well (2).

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