Residual oil collecting and conveying device for hydropower station unit

Abstract

The utility model provides a residual oil collecting and conveying device for a hydropower station unit. The residual oil collecting and conveying device comprises an oil collecting tank, a first three-way valve, a second three-way valve and a hydraulic pump set. An inlet of the first three-way valve is connected with the first end of the first hose, and two outlets of the first three-way valve are connected with a hydraulic oil pump oil suction port of the hydraulic pump set and the oil collecting tank respectively; an inlet of the second three-way valve is connected with a hydraulic oil pump oil outlet of the hydraulic pump set, and two outlets of the second three-way valve are connected with the second hose and the oil collecting tank respectively. The first hose is inserted into the bottom of the oil tank matched with the water-turbine generator set or a pipeline to be subjected to oil discharge, and residual oil at the bottom of the oil tank matched with the water-turbine generator set and in the pipeline is collected into the oil collecting tank under the cooperation of the first three-way valve, the hydraulic oil pump and the second three-way valve; meanwhile, the functions of outward conveying of residual oil at the bottom of an oil tank matched with the water-turbine generator set and a pipeline and exporting of residual oil in an oil collecting tank can be achieved, and the overhaul operation efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment maintenance, in particular to a residual oil collection and transportation device for a hydropower station unit. Background Art

[0002] Turbine oil is widely used in hydropower stations, and is mainly used as the working medium of the guide bearings, speed governors and hydraulic systems of turbine generator sets. Therefore, in most maintenance projects of mechanical equipment of turbine generator sets, the oil tank or pipeline must be drained first before the relevant maintenance work can be carried out. Commonly used oil drain pumps are usually connected to oil tanks with oil drain ports. The connection method generally adopts flange or quick connector connection. It is difficult to discharge the residual oil at the bottom of the oil tank. The pipeline has no oil drain port, so the commonly used oil drain pump is not suitable. In actual operation, the commonly used oil drain pump cannot recover the residual oil leaking from the bottom of the oil tank, in the pipeline and on the surface of the equipment. Operators are often required to rely on traditional tools such as iron basins, iron buckets, and rags to collect residual oil on site, which affects the efficiency of maintenance work and is easy to pollute the production environment. Utility Model Content

[0003] The purpose of the utility model is to provide a residual oil collection and transportation device for a hydropower station unit. By inserting a first hose into the oil tank of the hydro-generator unit or the oil pipeline to be discharged, with the cooperation of the first three-way valve, the hydraulic oil pump, and the second three-way valve, the residual oil at the bottom of the oil tank of the hydro-generator unit and in the pipeline can be collected in the oil collecting tank. At the same time, the residual oil at the bottom of the oil tank of the hydro-generator unit and in the pipeline can be transported to the outside and the residual oil in the oil collecting tank can be exported, which greatly improves the maintenance efficiency. In order to achieve the above technical features, the purpose of the utility model is achieved as follows:

[0004] A residual oil collection and transportation device for a hydropower station unit, comprising an oil collecting tank, a first three-way valve, a second three-way valve and a hydraulic pump group;

[0005] The inlet of the first three-way valve is connected to the first end of the first hose, and the two outlets of the first three-way valve are respectively connected to the hydraulic oil pump suction port of the hydraulic pump group and the oil collecting tank;

[0006] The inlet of the second three-way valve is connected to the oil outlet of the hydraulic oil pump of the hydraulic pump group, and the two outlets of the second three-way valve are connected to the second hose and the oil collecting tank respectively.

[0007] The oil collecting tank is provided with an impurity cleaning port near the bottom, and the impurity cleaning port is provided with a plug.

[0008] A vent hole is provided on the top of the oil collecting tank, and a filter is installed on the vent hole.

[0009] A liquid level and liquid temperature gauge is installed in the oil collecting tank.

[0010] The side wall of the oil collecting tank is provided with a lifting lug.

[0011] The first three-way valve, the second three-way valve and the hydraulic pump group are all installed on the top of the oil collecting tank. The bottom of the oil collecting tank is equipped with walking wheels, and the top of the oil collecting tank is equipped with a handle.

[0012] An oil pipe hook is installed on the side wall of the oil collecting box opposite to the handle.

[0013] The hydraulic oil pump is a gear pump.

[0014] The first three-way valve and the second three-way valve are L-shaped three-way ball valves.

[0015] The second end of the first hose is detachably mounted with a suction head.

[0016] The utility model has the following beneficial effects:

[0017] 1. By inserting the first hose into the oil tank of the hydraulic generator set or the oil pipeline to be discharged, with the cooperation of the first three-way valve, the hydraulic oil pump and the second three-way valve, the residual oil at the bottom of the oil tank of the hydraulic generator set and in the pipeline can be collected in the oil collecting tank. At the same time, the residual oil at the bottom of the oil tank of the hydraulic generator set and in the pipeline can be transported to the outside and the residual oil in the oil collecting tank can be exported, which greatly improves the maintenance efficiency.

[0018] 2. Through the setting of the first hose and the matching with different suction heads, it can adapt to the application of different working conditions.

[0019] 3. The utility model has a simple structure, simple operation, and quick transportation, which greatly improves the working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 A top view of a residual oil collection and transportation device for a hydropower station unit provided by an embodiment of the utility model;

[0022] Figure 2 A partial structural diagram of a residual oil collection and transportation device for a hydropower station unit provided by an embodiment of the utility model;

[0023] In the figure: oil collecting tank 1, first three-way valve 2, second three-way valve 3, hydraulic pump group 4, hydraulic oil pump 4a, coupling and bell sleeve 4b, motor 4c, first hose 5, second hose 6, plug 7, filter 8, lifting lug 9, walking wheel 10, handle 11, oil pipe hook 12, suction head 13. DETAILED DESCRIPTION

[0024] The embodiments of the present utility model are further described below in conjunction with the accompanying drawings.

[0025] See attached Figure 1-2 In order to realize the above technical features, the purpose of the utility model is achieved as follows:

[0026] A residual oil collection and transportation device for a hydropower station unit comprises an oil collecting tank 1, a first three-way valve 2, a second three-way valve 3 and a hydraulic pump group 4; the inlet of the first three-way valve 2 is connected to the first end of a first hose 5, and the two outlets of the first three-way valve 2 are respectively connected to the oil suction port of a hydraulic oil pump 4a of the hydraulic pump group 4 and the oil collecting tank 1; the inlet of the second three-way valve 3 is connected to the oil outlet of the hydraulic oil pump 4a of the hydraulic pump group 4, and the two outlets of the second three-way valve 3 are respectively connected to a second hose 6 and the oil collecting tank 1. During operation, the inlet of the first hose 5 is placed at the bottom of the oil tank supporting the hydro-turbine generator set, the operating position of the first three-way valve 2 is set at the connection between the first hose 5 and the oil suction port of the hydraulic oil pump 4a, and the operating position of the second three-way valve 3 is set at the connection between the oil outlet of the hydraulic oil pump 4a and the oil collecting tank 1. When the power is turned on, the motor 4c of the hydraulic pump group 4 drives the hydraulic oil pump 4a to rotate, and the residual oil enters the oil collecting tank 1 through the first hose 5, the first three-way valve 2, the hydraulic oil pump 4a, and the second three-way valve 3, realizing the collection function; when only the oil in the oil tank supporting the hydro-turbine generator set needs to be transported to the outside, the operating position of the first three-way valve 2 is set at the second three-way valve 3. A hose 5 is connected to the oil suction port of the hydraulic oil pump 4a, and the operating position of the second three-way valve 3 is set at the connection between the oil outlet of the hydraulic oil pump 4a and the second hose 6. The residual oil is transported to the outside through the first hose 5, the first three-way valve 2, the hydraulic oil pump 4a, the second three-way valve 3, and then through the second hose 6, thereby realizing the transportation function; when the residual oil in the oil collecting tank 1 needs to be exported, the operating position of the first three-way valve 2 is set at the connection between the oil collecting tank 1 and the oil suction port of the hydraulic oil pump 4a, and the operating position of the second three-way valve 3 is set at the connection between the oil outlet of the hydraulic oil pump 4a and the second hose 6, and the residual oil is exported out of the oil tank, thereby realizing the residual oil export function. Therefore, by inserting the first hose 5 into the supporting oil tank of the hydro-turbine generator set or the oil pipeline to be discharged, with the cooperation of the first three-way valve 2, the hydraulic oil pump 4a and the second three-way valve 3, the residual oil at the bottom of the supporting oil tank of the hydro-turbine generator set and in the pipeline can be collected in the oil collecting tank. At the same time, the residual oil at the bottom of the supporting oil tank of the hydro-turbine generator set and in the pipeline can be transported to the outside and the residual oil in the oil collecting tank can be exported, which greatly improves the efficiency of maintenance operations.

[0027] Furthermore, the oil collecting tank 1 is provided with an impurity cleaning port near the bottom, and the impurity cleaning port is provided with a plug 7, and the operator can clean the impurities in the oil collecting tank through the impurity cleaning port.

[0028] Furthermore, a vent hole is provided on the top of the oil collecting tank 1, and a filter 8 is installed on the vent hole. The setting of the vent hole allows the air pressure in the oil collecting tank to be balanced with the external pressure to avoid the generation of negative pressure or excessive pressure inside. The filter 8 prevents external impurities or foreign objects from entering the oil collecting tank through the vent hole.

[0029] Furthermore, a liquid level and liquid temperature gauge is installed in the oil collecting tank 1 to monitor the liquid level and liquid temperature in the oil collecting tank.

[0030] Furthermore, a lifting lug 9 is installed on the side wall of the oil collecting tank 1 to facilitate lifting.

[0031] Furthermore, the first three-way valve 2, the second three-way valve 3 and the hydraulic pump group 4 are all installed on the top of the oil collecting tank 1, the bottom of the oil collecting tank 1 is equipped with walking wheels 10, and the top of the oil collecting tank 1 is equipped with a handle 11. Through the above structure, the device of the present application constitutes an integral body that is easy to move and is more convenient to move.

[0032] Furthermore, an oil pipe hook 12 is installed on the side wall of the oil collecting box 1 opposite to the handle 11 to facilitate the arrangement and collection of the first hose and the second hose.

[0033] Furthermore, since the gear pump has the characteristics of simple structure and low price, the hydraulic oil pump 4a is preferably a gear pump.

[0034] Furthermore, the first three-way valve 2 and the second three-way valve 3 are L-type three-way ball valves.

[0035] Furthermore, the second end of the first hose 5 is detachably mounted with a suction head 13. The present application is equipped with a variety of suction heads, including needle-type suction heads and wide-mouth suction heads of various diameters, to adapt to the application of various different working conditions.

Claims

1. A residual oil collection and transportation device for a hydropower station unit, characterized in that: It comprises an oil collecting tank (1), a first three-way valve (2), a second three-way valve (3) and a hydraulic pump group (4); The inlet of the first three-way valve (2) is connected to the first end of the first hose (5), and the two outlets of the first three-way valve (2) are respectively connected to the oil suction port of the hydraulic oil pump (4a) of the hydraulic pump group (4) and the oil collecting tank (1); The inlet of the second three-way valve (3) is connected to the oil outlet of the hydraulic oil pump (4a) of the hydraulic pump group (4), and the two outlets of the second three-way valve (3) are respectively connected to the second hose (6) and the oil collecting tank (1).

2. The residual oil collection and transportation device for a hydropower station unit according to claim 1 is characterized in that: The oil collecting tank (1) is provided with an impurity cleaning port near the bottom, and the impurity cleaning port is provided with a plug (7).

3. The residual oil collection and transportation device for a hydropower station unit according to claim 2 is characterized in that: The top of the oil collecting tank (1) is provided with a vent hole, and a filter (8) is installed on the vent hole.

4. The residual oil collection and transportation device for a hydropower station unit according to claim 3 is characterized in that: A liquid level and liquid temperature gauge is installed in the oil collecting tank (1).

5. The residual oil collection and transportation device for a hydropower station unit according to claim 4 is characterized in that: A lifting lug (9) is installed on the side wall of the oil collecting tank (1).

6. The residual oil collection and transportation device for a hydropower station unit according to claim 5 is characterized in that: The first three-way valve (2), the second three-way valve (3) and the hydraulic pump group (4) are all installed on the top of the oil collecting tank (1), the bottom of the oil collecting tank (1) is equipped with walking wheels (10), and the top of the oil collecting tank (1) is equipped with a handle (11).

7. The residual oil collection and transportation device for a hydropower station unit according to claim 6 is characterized by: An oil pipe hook (12) is installed on the side wall of the oil collecting box (1) opposite to the handle (11).

8. The residual oil collection and transportation device for a hydropower station unit according to claim 7 is characterized in that: The hydraulic oil pump (4a) is a gear pump.

9. The residual oil collection and transportation device for a hydropower station unit according to claim 8 is characterized by: The first three-way valve (2) and the second three-way valve (3) are L-shaped three-way ball valves.

10. The residual oil collection and transportation device for a hydropower station unit according to claim 9, characterized in that: The second end of the first hose (5) is detachably mounted with a suction head (13).

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