Oil pump station for oil-sealed gas holder

Abstract

The utility model discloses an oil pump station for dilute oil sealing type gas holder. Including oil inflow chamber, primary separation chamber, water chamber, secondary separation chamber and oil chamber, still include two submersible pump, the submersible pump is by motor and the pump body connected below the motor composition, wherein, the motor of submersible pump and oil outlet pipe set in the oil chamber top, the pump body of submersible pump downward stretches into the oil chamber. The utility model discloses adopt submersible pump to replace traditional screw rod pump, and the oil pump station structure is simple, and the floor area is small.

Description

Technical Field

[0001] This utility model relates to an oil pump station for a thin oil sealed gas holder. Background Technology

[0002] The oil pump station introduces sealing oil through the oil groove at the bottom of the gas holder. It functions to separate water and transfer the sealing oil, and uses pumps to deliver the sealing oil through oil riser pipes to the reserve oil tank at the top of the gas holder's side panel. Each oil pump station is equipped with two pumps: one for regular use and one for emergency use. The foundation of the oil pump station is approximately 2 meters away from the gas holder body and is connected to the gas holder's foundation as a whole, allowing the oil pump station to settle together with the gas holder body. Determining the elevation of the center of the oil inlet pipe connecting the oil pump station to the side panel also determines the elevation of the oil pump station's foundation surface.

[0003] Traditional oil pumping stations, such as the utility model patent in Chinese patent application number 200920126332.9 entitled "A Thin Oil Sealed Gas Holder Screw Oil Pumping Station," typically include an oil inflow chamber, a primary separation chamber, a water chamber, a secondary separation chamber, and an oil chamber. Oil is pumped out of the oil chamber by a screw pump. Because the screw pump is externally mounted, this type of oil pumping station has a complex structure and occupies a large area. Utility Model Content

[0004] To overcome the above-mentioned defects, the purpose of this utility model is to provide an oil pump station for a thin oil sealed gas holder.

[0005] To achieve the above objectives, the oil pump station for the thin oil sealed gas holder of this utility model includes an oil inflow chamber, a primary separation chamber, a water chamber, a secondary separation chamber, and an oil chamber. It also includes two submersible pumps, each consisting of a motor and a pump body connected below the motor. The motor and the outlet pipe of the submersible pump are located above the oil chamber, and the pump body of the submersible pump extends downward into the oil chamber.

[0006] Furthermore, a level gauge is installed in the oil chamber; It also includes a control device that controls the submersible pump based on the output signal of the level gauge. The control device can be a PLC, etc.

[0007] This invention uses a submersible pump instead of a traditional screw pump, resulting in a simple pump station structure and a small footprint. A level gauge in the oil chamber detects the oil level and interlocks the start and stop of the two pumps, thus solving the problem of aging and malfunctioning mechanical devices in traditional pump stations that affect the safe operation of the pump station. Attached Figure Description

[0008] Figure 1 This is a top view of the overall main structure of this utility model.

[0009] Figure 2This is an isometric view of the overall main structure of this utility model.

[0010] Drawing number explanation: 1-oil inlet pipe, 2-water inlet pipe, 3-oil inlet chamber, 4-primary separation chamber, 5-water chamber, 6-secondary separation chamber, 7-oil chamber, 8-submersible pump, 9-oil pump station outlet pipe, and 10-water outlet. Detailed Implementation

[0011] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0012] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0013] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0014] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0015] Reference Figure 1 and Figure 2 This utility model discloses a thin oil sealed gas holder oil pump station, which mainly includes an oil inlet pipe 1, a water inlet pipe 2, an oil inlet chamber 3, a primary separation chamber 4, a water chamber 5, a secondary separation chamber 6, an oil chamber 7, a submersible oil pump 8, an oil pump station outlet pipe 9, and a water outlet 10. The motor part of the submersible oil pump and the oil outlet pipe are installed above the oil chamber, and the pump body part is located inside the oil chamber.

[0016] As an improvement to this invention, a level gauge is installed in the oil chamber to detect the oil level, and the start and stop of the two oil pumps are interlocked by a control device (such as a PLC). This solves the problem of aging and failure of the mechanical device of the float switch in traditional oil pump stations, which affects the safe operation of the oil pump station.

[0017] Working principle: The oil-water mixture from the oil groove at the bottom of the gas holder flows into the oil inflow chamber 3 through oil inflow pipe 1 and water inflow pipe 2. Due to the density difference, the oil-water mixture floats and separates into layers inside the oil inflow chamber 3, with oil floating on top and water settling at the bottom. The oil and water to be separated in the oil inflow chamber 1 flow into the primary separation chamber 4 for separation. The separated water enters the water chamber 5, and the separated oil enters the secondary separation chamber 6 for further separation. After the secondary separation, the oil overflows into the oil chamber.

[0018] The electric motor of the submersible pump is mounted above the oil chamber casing, providing power; the pump body is installed inside the oil chamber casing. After the motor starts, it drives the impeller inside the pump body to rotate at high speed. The impeller's high-speed rotation generates centrifugal force, drawing in the sealing oil from inside the oil chamber through the pump inlet. The sealing oil is pushed towards the outer edge by the impeller, creating suction and drawing in more liquid. After pressurization, the sealing oil pressure is sufficient to overcome the hydrostatic pressure inside the oil chamber and the frictional resistance of the pipes, thus being lifted. The pressurized sealing oil flows out through a guide vane in stages, finally being delivered to the reserve oil tank of the gas holder via the oil pump station outlet pipe 9 at the top of the oil chamber.

[0019] The present invention has been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above-described 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 invention. Many other changes and modifications made without departing from the concept and scope of the present invention should be considered within the protection scope of the present invention.

[0020] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0021] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A thin-oil sealed gas holder oil pump station, characterized in that, It includes an oil inflow chamber, a primary separation chamber, a water chamber, a secondary separation chamber, and an oil chamber; It also includes two submersible pumps, each consisting of a motor and a pump body connected below the motor. The motor and the outlet pipe of the submersible pump are located above the oil chamber, and the pump body of the submersible pump extends downward into the oil chamber.

2. The oil pump station for a thin oil sealed gas holder as described in claim 1, characterized in that, A level gauge is installed in the oil chamber; It also includes a control device that controls the submersible pump based on the output signal of the level gauge.

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