An oil receiving and storage tank

Abstract

The utility model relates to oil storage technical field, concretely is a kind of oil receiving and storing tank, including storage tank structure, agitating structure and exhaust structure, and storage tank structure includes storage tank main body, and the inside of storage tank main body is annularly arranged and fixedly installed with several slide rails, and the inside of storage tank main body is slidably clamped with inner floating roof, and the edge of inner floating roof is slidably sleeved with slide rail;Agitating structure includes oil outlet and oil return port, and oil outlet is fixedly installed in the lower end of a slide rail, and oil return port is fixedly installed in the middle of inner floating roof;Exhaust structure includes suction passage, and suction passage is arranged in the inside of a slide rail.The utility model can periodically extract methanol gasoline at bottom through oil outlet and discharge from top in storage process, can break local concentration unevenness or moisture aggregation, makes oil product keep uniform state all the time, further reduces the probability of stratification, improves storage quality.

Description

Technical Field

[0001] This utility model relates to the field of oil storage technology, specifically an oil receiving and storage tank. Background Technology

[0002] Methanol gasoline is a new type of clean fuel made by adding fuel methanol (usually requiring a purity of over 99.9%) and additives to standard gasoline in a certain volume or mass ratio. However, due to the presence of methanol in the gasoline, which is highly hydrophilic, it will absorb moisture from the air. When the moisture content in methanol gasoline exceeds a certain limit, the methanol will be miscible with water and separate from the gasoline, resulting in fuel stratification, affecting the normal operation of the engine, and aggravating corrosion.

[0003] Currently, methanol gasoline is still stored in traditional storage tanks. Although traditional storage tanks are designed with excellent sealing structures to take into account the volatility of gasoline, they do not adequately address the issue of moisture in the air entering the storage tank, whether it is for daily storage, internal air pressure, or receiving gasoline from tank trucks into the storage tank, thus affecting the storage effect of methanol gasoline. Utility Model Content

[0004] The purpose of this invention is to provide an oil receiving and storage tank to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An oil receiving and storage tank, comprising: The storage tank structure includes a storage tank body, inside which several slide rails are arranged and fixed in a ring at equal angles, and an inner floating roof is slidably fitted inside the storage tank body, with the edge of the inner floating roof slidingly connected to the slide rails; The agitation structure includes an oil extraction port and an oil return port. The oil extraction port is fixedly installed at the lower end of a slide rail, and the oil return port is fixedly installed in the middle of the inner floating roof. The exhaust structure includes an air extraction channel, which is located inside a slide rail.

[0006] Furthermore, the tank body is equipped with an insulation layer, an oil inlet is fixedly installed on the side surface of the tank body, and an oil outlet is fixedly installed in the middle of the bottom side of the tank body. Both the oil inlet and the oil outlet are equipped with electric valves.

[0007] Furthermore, the upper and lower edges of the inner wall of the main body of the storage tank are both fixedly installed with two sets of limiting angle codes arranged in a ring-shaped equiangular array.

[0008] Furthermore, a breather valve is fixedly installed on the top edge of the main body of the storage tank, and a desiccant breather is screwed into the opening on the outside of the breather valve.

[0009] Furthermore, the top of the oil extraction port is connected to the oil extraction channel, which is located inside the slide rail. A circulation pump is fixedly installed on the top of the main body of the storage tank. The circulation pump is connected to the upper end of the oil extraction channel. The other end of the circulation pump passes through the top of the main body of the storage tank and is fixedly connected to a metal bellows. The lower end of the metal bellows is fixedly connected to the return oil port. The circulation pump is then started.

[0010] Furthermore, an electric angle valve is fixedly installed on one side edge of the bottom of the main body of the storage tank. The upper opening of the electric angle valve is connected to the air extraction channel. A vacuum pump is fixedly installed on the top of the main body of the storage tank. The pump head of the vacuum pump is connected to the upper end of the air extraction channel.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. The overall storage tank adopts an internal floating roof design, which reduces the vacancy rate at the bottom of the internal floating roof, i.e., the top of the methanol gasoline storage space, and reduces the space required for evaporation, thereby reducing the volatility of methanol gasoline. It also fundamentally reduces the probability of contact with moisture in the air, reducing the possibility of stratification due to the hydrophilicity of methanol and the oil. At the same time, during the storage process, methanol gasoline at the bottom can be periodically extracted through the oil extraction port and discharged from the top, which can break up local uneven concentrations or moisture accumulation, keeping the oil in a uniform state, further reducing the probability of stratification and improving storage quality.

[0012] 2. When receiving methanol gasoline, first connect the pipeline connected to the filling port to the tanker truck's drain port. First, open the electric valve at the filling port and keep the tanker truck's drain port valve closed. At this time, open the electric angle valve to start the vacuum pump, which will relatively extract the air from the bottom space of the inner floating roof and the connecting pipeline, reducing the air content and thus the moisture content. Then, close the electric angle valve and the vacuum pump, open the valve on the tanker truck, and start the filling operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model; Figure 3 This is a schematic diagram of the stirring structure in this utility model; Figure 4 This is a schematic diagram of the exhaust structure in this utility model.

[0014] In the diagram: 1. Tank structure; 101. Tank body; 102. Insulation layer; 103. Oil inlet; 104. Oil outlet; 105. Electric valve; 106. Slide rail; 107. Internal floating roof; 108. Limiting angle code; 109. Breather valve; 2. Agitation structure; 201. Oil extraction port; 202. Oil extraction channel; 203. Circulation pump; 204. Metal bellows; 205. Oil return port; 3. Exhaust structure; 301. Air extraction channel; 302. Electric angle valve; 303. Vacuum pump. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-4 In this embodiment of the present invention, an oil receiving and storage tank includes a tank structure 1, an agitation structure 2, and an exhaust structure 3. The tank structure 1 includes a tank body 101, and a plurality of slide rails 106 are fixedly installed in a ring at equal angles inside the tank body 101. An inner floating roof 107 is slidably fitted inside the tank body 101, and the edge of the inner floating roof 107 is slidably sleeved with the slide rails 106. The agitation structure 2 includes an oil extraction port 201 and an oil return port 205. The oil extraction port 201 is fixedly installed at the lower end of a slide rail 106, and the oil return port 205 is fixedly installed in the middle of the inner floating roof 107. The exhaust structure 3 includes an air extraction channel 301, which is opened inside a slide rail 106.

[0017] Specifically, the overall storage tank adopts an internal floating roof design, which reduces the vacancy rate at the bottom of the internal floating roof 107, i.e., the top of the methanol gasoline storage space, reduces the space required for evaporation, thereby reducing the volatility of methanol gasoline and fundamentally reducing the probability of contact with moisture in the air. This reduces the possibility of stratification due to the hydrophilicity of methanol and the oil. At the same time, during the storage process, methanol gasoline at the bottom can be periodically extracted through the oil extraction port 201 and discharged from the top, which can break up local uneven concentrations or moisture accumulation, keeping the oil in a uniform state, further reducing the probability of stratification and improving storage quality.

[0018] Example 1 like Figure 1 , 2As shown in Figure 4, in this embodiment, a heat insulation layer 102 is embedded inside the tank body 101, an oil inlet 103 is fixedly installed on the side surface of the tank body 101, an oil outlet 104 is fixedly installed in the middle of the bottom side of the tank body 101, and an electric valve 105 is embedded in the middle of both the oil inlet 103 and the oil outlet 104; an electric angle valve 302 is fixedly installed on one edge of the bottom of the tank body 101, the upper opening of the electric angle valve 302 is connected to the air extraction channel 301, and a vacuum pump 303 is fixedly installed on the top of the tank body 101, the pump head of the vacuum pump 303 is connected to the upper end of the air extraction channel 301.

[0019] In this embodiment, when receiving methanol gasoline, the pipeline connected to the filling port 103 is first connected to the tanker truck's drain port. The electric valve 105 at the filling port 103 is opened first, and the tanker truck's drain port valve is kept closed. At this time, the electric angle valve 302 is opened to start the vacuum pump 303, which relatively extracts the air from the bottom space of the inner floating roof 107 and the connecting pipeline, reducing the air content and thus reducing the moisture content. Then, the electric angle valve 302 and the vacuum pump 303 are closed, and the valve on the tanker truck is opened to carry out the filling operation.

[0020] like Figure 1 , 2 As shown, in this embodiment, two sets of limiting angle brackets 108 are fixedly installed in a ring-shaped equiangular array on the upper and lower edges of the inner wall of the storage tank body 101; a breather valve 109 is fixedly installed on the top edge of the storage tank body 101, and a desiccant breather is screwed into the outer opening of the breather valve 109.

[0021] In practice, the upper and lower limits of the internal floating roof 107 are restricted by the limiting angle code 108 to prevent the internal floating roof 107 from exceeding the oil filling port 103 and to provide storage space for the compressed metal bellows 204. At the same time, when the internal floating roof 107 floats up and down, the air pressure above the internal floating roof 107 is balanced by the breather valve 109, and the intake air is dehumidified by the desiccant breather to prevent moisture from entering the interior of the tank body 101 and then entering the area below the internal floating roof 107 through the connection gap, thus further preventing the occurrence of stratification.

[0022] Example 2 Based on Example 1, in order to supplement the specific method of agitation by extracting and re-injecting oil through agitation structure 2, which was not mentioned in Example 1, this paper proposes a method for agitation.

[0023] like Figure 1-3As shown, in this embodiment, the top of the oil extraction port 201 is connected to the oil extraction channel 202, which is located inside the slide rail 106. A circulation pump 203 is fixedly installed on the top of the tank body 101. The circulation pump 203 is connected to the upper end of the oil extraction channel 202. The other end of the circulation pump 203 passes through the top of the tank body 101 and is fixedly connected to a metal bellows 204. The lower end of the metal bellows 204 is fixedly connected to the return port 205.

[0024] In practice, the circulation pump 203 is started, and the methanol gasoline at the bottom is extracted from the oil extraction port 201 through the oil extraction channel 202. The gasoline is then reinjected into the top of the methanol gasoline through the return port 205 via the metal bellows 204 to agitate it. The flexible and compressible metal bellows 204, which will not collapse due to folding, replenishes the sliding inner floating top 107 to maintain the normal flow of gasoline.

[0025] In this utility model, to facilitate operator control, a PLC controller can be provided. The storage tank structure 1, the circulating pump 203, the electric angle valve 302, and some supporting sensor structures are all electrically connected to the PLC controller. The PLC controller is existing technology and will not be described in detail here. Meanwhile, the entire inner wall is made of carbon steel and coated with an anti-corrosion coating. The sealing structure of each interface is made of fluororubber. The pipe connecting the storage tank body 101 and the tank truck is a self-expanding hose for use in negative pressure environments.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An oil receiving and storage tank, characterized in that, include: The storage tank structure (1) includes a storage tank body (101), in which several slide rails (106) are fixedly installed in a ring at equal angles inside the storage tank body (101), and an inner floating roof (107) is slidably fitted inside the storage tank body (101), with the edge of the inner floating roof (107) slidably sleeved with the slide rails (106). The agitation structure (2) includes an oil extraction port (201) and an oil return port (205). The oil extraction port (201) is fixedly installed at the lower end of a slide rail (106), and the oil return port (205) is fixedly installed in the middle of the inner floating roof (107). The exhaust structure (3) includes an air extraction channel (301) which is located inside a slide rail (106).

2. The oil receiving and storage tank according to claim 1, characterized in that, The storage tank body (101) is embedded with a heat insulation layer (102), and an oil inlet (103) is fixedly installed on the side surface of the storage tank body (101). An oil outlet (104) is fixedly installed in the middle of the bottom side of the storage tank body (101). An electric valve (105) is embedded in the middle of both the oil inlet (103) and the oil outlet (104).

3. The oil receiving and storage tank according to claim 2, characterized in that, The upper and lower edges of the inner wall of the main body of the storage tank (101) are both fixedly installed with two sets of limiting angle codes (108) arranged in a ring-shaped equiangular array.

4. The oil receiving and storage tank according to claim 3, characterized in that, A breather valve (109) is fixedly installed on the top edge of the main body (101) of the storage tank, and a desiccant breather is screwed into the outer opening of the breather valve (109).

5. The oil receiving and storage tank according to claim 4, characterized in that, The top of the oil extraction port (201) is connected to the oil extraction channel (202), which is located inside the slide rail (106). A circulation pump (203) is fixedly installed on the top of the tank body (101). The circulation pump (203) is connected to the upper end of the oil extraction channel (202). The other end of the circulation pump (203) passes through the top of the tank body (101) and is fixedly connected to a metal bellows pipe (204). The lower end of the metal bellows pipe (204) is fixedly connected to the return port (205).

6. The oil receiving and storage tank according to claim 5, characterized in that, An electric angle valve (302) is fixedly installed on one side edge of the bottom of the main body (101) of the storage tank. The upper opening of the electric angle valve (302) is connected to the air extraction channel (301). A vacuum pump (303) is fixedly installed on the top of the main body (101). The pump head of the vacuum pump (303) is connected to the upper end of the air extraction channel (301).

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