Anti-impact oil unloading device for gas station

Abstract

The utility model belongs to the technical field of gas station safety, and relates to an anti-impact oil discharge device of a gas station, which comprises an oil inlet pipe and a diffuser, the diffuser comprises a diffuser body and a plurality of through holes arranged on the upper surface of the diffuser body, and a plurality of discharge ports communicated with the through holes are arranged on the side surface of the diffuser body. A diffuser is arranged at the lower end of an oil inlet pipe for discharging oil into an oil tank, oil leaving an outlet in the lower end of the oil inlet pipe directly impacts the diffuser, and part of oil ports are guided to change directions and enter the oil tank in the radial direction of the oil inlet pipe through a through hole and a discharge port formed in the diffuser. And the flowing directions of the oil products of the two parts are mutually interfered to form turbulent flow, so that the impact force of the oil products in the oil tank is further reduced, the impact on the bottom of the oil tank is reduced, and the oil quality is improved. The problem that static electricity is accumulated due to the fact that the oil flow speed is too high can be completely avoided, and the safety risk in the oil discharging process is remarkably reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas station safety, and in particular relates to an anti-impact type oil unloading device for a gas station. Background Art

[0002] At present, gas stations generally use low-liquid-level unloading when unloading oil into storage tanks. Impact unloading is common in gas stations. Although its rapid unloading method improves unloading efficiency, it also brings safety hazards and stirs impurities at the bottom of the tank, causing oil contamination and affecting oil quality.

[0003] On the other hand, during the current impact oil unloading process, the rapid flow rate of oil can easily lead to static electricity accumulation and even cause fire and explosion. At the same time, oil and gas leaks or accidents may cause harm to employees and consumers. If the oil overflows, it will cause soil and groundwater pollution. Utility Model Content

[0004] The purpose of the utility model is to provide an anti-impact oil unloading device for a gas station to solve the problems existing in the above-mentioned background technology.

[0005] To achieve the above objectives, this application is implemented through the following technical solutions:

[0006] An anti-shock type oil unloading device for a gas station comprises an oil inlet pipe and a diffuser, wherein the diffuser is fixed below the lower end outlet of the oil inlet pipe through two or more connecting pieces and is spaced apart from the oil inlet pipe;

[0007] The diffuser includes a diffuser body, a plurality of through holes arranged on the upper surface of the diffuser body, and a plurality of discharge ports communicating with the through holes arranged on the side surface of the diffuser body.

[0008] Furthermore, the circumscribed circle diameter of the diffuser body is larger than the outer diameter of the oil inlet pipe, and the circumscribed circle diameter of the diffuser body does not exceed 1.5 times the outer diameter of the oil inlet pipe.

[0009] Furthermore, the channel connecting the through hole and the discharge outlet in the diffuser body is L-shaped, and the inner diameter of the vertical channel connected to the through hole is the same, and the inner diameter of the transverse channel connected to the discharge outlet extends from the vertical channel to the discharge outlet, and the inner diameter gradually increases.

[0010] Furthermore, if there are more than two axially arranged discharge outlets on the side surface of the diffuser body, the angle between the center line of the transverse channel connected to the lowest discharge outlet and the center line of the vertical channel is less than 90 degrees.

[0011] Furthermore, the total area of ​​all through holes is smaller than the total area of ​​all outlets, and the total area of ​​all outlets is 1.1-1.5 times the total area of ​​all through holes.

[0012] Furthermore, the total area of ​​all the through holes is 0.8-1.1 times the surface area of ​​the inner cavity of the oil inlet pipe.

[0013] Furthermore, the distance between the outlet at the lower end of the oil inlet pipe and the upper surface of the diffuser is no greater than the diameter of the circumscribed circle of the diffuser.

[0014] Furthermore, the upper surface of the diffuser body is a curved surface with a central upward convexity.

[0015] Furthermore, there are three connecting pieces, which are arranged at equal intervals along the side wall of the oil inlet pipe.

[0016] The beneficial effects of the utility model are:

[0017] This technical solution sets a diffuser at the lower end of the oil inlet pipe for unloading oil into the oil tank. The oil leaving the outlet at the lower end of the oil inlet pipe directly impacts the diffuser, and through the through holes and the discharge port provided on the diffuser, some of the oil outlets are guided to change direction and enter the oil tank along the radial direction of the oil inlet pipe. The remaining oil outlets also change direction after entering the oil tank through the gap between the oil inlet pipe and the diffuser. Moreover, the flow directions of the two parts of the oil interfere with each other to form a turbulent flow, which further reduces the impact force of the oil in the oil tank and reduces the impact on the bottom of the oil tank. At the same time, it can completely avoid the accumulation of static electricity caused by the excessively fast flow rate of the oil, and significantly reduce the safety risks during the oil unloading process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the utility model of the anti-impact oil unloading device for a gas station inside an oil tank.

[0019] Figure 2 This is a side view of the diffuser of the present invention.

[0020] Figure 3 This is a top view of the diffuser of the present invention.

[0021] Description of reference numerals:

[0022] 1. Oil tank; 2. Oil inlet pipe; 3. Diffuser; 4. Connector; 31. Through hole; 32. Discharge outlet. DETAILED DESCRIPTION

[0023] The technical solution of the present invention is described in detail below with reference to the accompanying drawings. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solution of the present invention, and cannot be interpreted as limiting the technical solution of the present invention.

[0024] See also Figures 1 to 3As shown, the present application provides a shock-resistant oil unloading device for gas stations, which can also be used in other similar oil unloading applications. When the shock-resistant oil unloading device of the present application is installed in an oil tank, it is generally at least 50 cm away from the bottom of the tank to prevent the impact of oil fluctuations on the tank bottom, causing the sediment at the bottom of the tank to be stirred up and affecting the oil quality.

[0025] The impact-proof oil unloading device of the present application includes an oil inlet pipe 2 and a diffuser 3. The diffuser 3 is fixed below the lower end outlet of the oil inlet pipe 2 by three connecting parts 4 and is spaced apart from the oil inlet pipe. The connecting parts are cylindrical or plate-shaped structures. In order to ensure that the diffuser is not corroded by the oil, it is made of corrosion-resistant materials, and the connecting parts are also made of corrosion-resistant materials, such as stainless steel or other special alloys, to adapt to the chemical properties of different oils.

[0026] The diffuser 3 of the present application is of cylindrical or cubic structure as a whole, preferably of cylindrical structure. The diffuser includes a diffuser body, a plurality of through holes 31 arranged on the upper surface of the diffuser body, which means that a plurality of through holes are evenly distributed on the upper surface of the diffuser, and a plurality of discharge ports 32 connected to the through holes are arranged on the side surface of the diffuser body. The discharge ports here are evenly distributed in the circumferential direction and the up and down direction of the side surface of the diffuser body.

[0027] In the present application, the circumscribed circle diameter of the diffuser body is larger than the outer diameter of the oil inlet pipe, and the circumscribed circle diameter of the diffuser body does not exceed 1.5 times the outer diameter of the oil inlet pipe. If the circumscribed circle diameter of the diffuser body is less than or equal to the outer diameter of the oil inlet pipe, during impact unloading, part of the oil will enter the oil tank 1 obliquely downward through the gap between the oil inlet pipe and the diffuser, which will still cause agitation on the bottom of the oil tank. If the circumscribed circle of the diffuser is too large, the oil will not only pass through the channel inside the diffuser but also pass through the upper surface of the diffuser for a longer time, thereby increasing obstruction and reducing the efficiency of impact unloading.

[0028] In the present application, the channel connecting the through hole and the discharge outlet in the diffuser body is L-shaped, consisting of a connected vertical channel and a transverse channel, and the inner diameter of the vertical channel connected to the through hole is the same, and the inner diameter of the transverse channel connected to the discharge outlet extends from the vertical channel to the discharge outlet, and the inner diameter gradually increases. The main purpose of the gradual increase in the inner diameter is to relieve pressure to reduce the flow rate, which is achieved by increasing the flow area.

[0029] In the present application, if there are more than two axially arranged discharge outlets located on the side surface of the diffuser body, the angle between the center line of the horizontal channel connected to the discharge outlet at the bottom and the center line of the vertical channel is less than 90 degrees. In this case, when the oil flows out from the bottom discharge outlet, the direction of the oil flows slightly upward away from the bottom of the oil tank, and collides with the oil flowing out of other discharge outlets, thereby causing turbulence and further reducing the impact speed.

[0030] In this application, the total area of ​​all through holes is smaller than the total area of ​​all discharge ports, and the total area of ​​all discharge ports is 1.1-1.5 times the total area of ​​all through holes. If it is too small, the buffering effect is not obvious. If it is too large, most of the oil will pass through the flow channel in the diffuser, increasing the resistance and reducing the efficiency of impact oil unloading.

[0031] In the present application, the total area of ​​all through holes is 0.8-1.1 times the surface area of ​​the inner cavity of the oil inlet pipe, in order to reduce the oil flow rate while ensuring impact-type oil unloading.

[0032] In this application, the distance between the lower outlet of the oil inlet pipe and the upper surface of the diffuser is no greater than the circumscribed diameter of the diffuser. The upper surface of the diffuser body is a centrally convex arc. This is to disperse the oil exiting the oil inlet pipe when it strikes the upper surface of the diffuser, thereby rapidly reducing the oil flow rate and preventing static electricity accumulation.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A gas station anti-shock oil unloading device, characterized in that: It includes an oil inlet pipe and a diffuser, wherein the diffuser is fixed below the lower end outlet of the oil inlet pipe through two or more connecting pieces and is spaced apart from the oil inlet pipe; The diffuser includes a diffuser body, a plurality of through holes arranged on the upper surface of the diffuser body, and a plurality of discharge ports communicating with the through holes arranged on the side surface of the diffuser body.

2. The anti-shock oil unloading device for a gas station according to claim 1, characterized in that: The circumscribed circle diameter of the diffuser body is larger than the outer diameter of the oil inlet pipe, and the circumscribed circle diameter of the diffuser body does not exceed 1.5 times the outer diameter of the oil inlet pipe.

3. The anti-shock oil unloading device for a gas station according to claim 1, characterized in that: The channel connecting the through hole and the discharge outlet in the diffuser body is L-shaped, and the inner diameter of the vertical channel connected to the through hole is the same, and the inner diameter of the transverse channel connected to the discharge outlet extends from the vertical channel to the discharge outlet, and the inner diameter gradually increases.

4. The anti-shock oil unloading device for a gas station according to claim 3, characterized in that: If there are more than two axially arranged discharge outlets on the side surface of the diffuser body, the angle between the center line of the transverse channel connected to the lowest discharge outlet and the center line of the vertical channel is less than 90 degrees.

5. The anti-shock oil unloading device for a gas station according to claim 1, characterized in that: The total area of ​​all through holes is smaller than the total area of ​​all discharge ports, and the total area of ​​all discharge ports is 1.1-1.5 times the total area of ​​all through holes.

6. The anti-shock oil unloading device for a gas station according to claim 5, characterized in that: The total area of ​​all the through holes is 0.8-1.1 times the surface area of ​​the inner cavity of the oil inlet pipe.

7. The anti-shock oil unloading device for a gas station according to claim 1, characterized in that: The distance between the outlet at the lower end of the oil inlet pipe and the upper surface of the diffuser is no greater than the diameter of the circumscribed circle of the diffuser.

8. The anti-shock oil unloading device for a gas station according to claim 1, characterized in that: The upper surface of the diffuser body is a curved surface with an upward convex center.

9. The anti-shock oil unloading device for a gas station according to claim 1, characterized in that: There are three connecting pieces, which are arranged at equal intervals along the side wall of the oil inlet pipe.

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