Oil inlet structure and oil collecting groove

Abstract

The utility model relates to the technical field of hydropower station water collecting well maintenance, in particular to an oil inlet structure and an oil collecting groove, the oil inlet structure is used for being arranged at an inlet of the oil collecting groove to guide oil dirt into the oil collecting groove, the oil inlet structure comprises an oil inlet, and a labyrinth piece is arranged at the rear end of the oil inlet. And a labyrinth for preventing oil dirt from flowing back is formed between the labyrinth piece and the oil inlet. The labyrinth piece is matched with the oil inlet, the oil collecting groove is formed in one side of the water collecting well, and after oil dirt in the water collecting well is fed into the oil collecting groove, it can be guaranteed that the oil dirt collected in the oil collecting groove only enters but does not exit.

Description

TECHNICAL FIELD

[0001] The utility model relates to water and electricity station water collecting well maintenance technical field, especially an oil inlet structure and oil collecting groove. BACKGROUND

[0002] In the process of operation, water and electricity station often appears oil leakage phenomenon because of the abrasion and aging of electromechanical equipment. These oil leakages mostly concentrate in the water collecting well of water and electricity station, and bring potential threat to water quality safety. In order to ensure environmental safety and prevent oil stains from being discharged into the downstream river, the oil stains in the water collecting well are usually handled by artificial regular cleaning, but this mode has many disadvantages.

[0003] Firstly, the water collecting well is in a limited space or water side operation, the air therein is not ventilated, the environment is dark and damp, and the safety risk of manual operation increases significantly.

[0004] Secondly, the oil stain cleaning work on the water surface is not only heavy in workload, high in labor intensity, but also very time-consuming, and the cleaning effect is not ideal.

[0005] After artificial cleaning, part of the oil stains cannot be effectively cleaned, and the uncleaned oil stains can be discharged into the downstream river, affecting the safety of the surrounding environment.

[0006] Therefore, an oil stain cleaning device capable of automatic cleaning is needed to reduce the risk of manual cleaning and reduce the labor intensity of manual cleaning. In order to cooperate with the automatic cleaning of oil stains, the cleaned oil stains need to be collected, and the collected oil stains need to be prevented from flowing back. UTILITY MODEL CONTENT

[0007] In order to solve the problems of high safety risk, high labor intensity and low efficiency of artificial cleaning of oil stains in the water collecting well in the prior art, the utility model provides an oil inlet structure and an oil collecting groove.

[0008] The utility model adopts the technical scheme of:

[0009] An oil inlet structure is used for guiding oil stains into an oil collecting groove at the inlet of the oil collecting groove, comprising an oil inlet, a labyrinth element is arranged at the rear end of the oil inlet, and a labyrinth for blocking the backflow of oil stains is formed between the labyrinth element and the oil inlet.

[0010] Preferably, the oil inlet is in the shape of a horn with a small outer diameter and a large inner diameter.

[0011] Preferably, the two sides of the oil inlet are in the shape of concave arcs.

[0012] Preferably, the labyrinth element is in the shape of an isosceles triangle, the top angle of the labyrinth element is located in the middle of the oil inlet, the two base angles of the labyrinth element are located on the two sides of the rear end of the oil inlet, and the two waist sides of the labyrinth element are in the shape of concave arcs.

[0013] An oil collecting groove comprises a groove body and the oil inlet structure as claimed in any one of the preceding claims, and the oil inlet structure is arranged at the inlet of the groove body.

[0014] Preferably, a plurality of oil inlet structures are evenly arranged along the width direction of the inlet at the inlet of the groove body.

[0015] The present application has the following beneficial effects:

[0016] The labyrinth member cooperates with the oil inlet, the oil collecting groove is arranged at one side of the water collecting well, and after the oil stains in the water collecting well are sent into the oil collecting groove, it can be ensured that the oil stains collected in the oil collecting groove only enter but not exit. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a structural schematic view of the air blowing assembly in the embodiment of the present application;

[0018] Figure 2 FIG. 2 is a structural schematic view of the valve group of the oil blowing device in the embodiment of the present application;

[0019] Figure 3 FIG. 3 is a structural schematic view of the oil collecting groove in the embodiment of the present application;

[0020] Figure 4 FIG. 4 is a structural schematic view of the combination of the oil blowing device and the oil collecting groove in the embodiment of the present application;

[0021] Reference signs: 10, gas supply pipeline, 11, gas supply section, 12, intermediate section, 13, air blowing section, 14, air blowing port, 15, valve group, 16, mechanical valve, 17, remote control valve, 20, bearing member, 30, oil collecting groove, 31, oil inlet, 32, labyrinth ring. DETAILED DESCRIPTION

[0022] The present application will be described in detail below in combination with the drawings and embodiments.

[0023] Embodiment: In order to solve the problem of oil stain cleaning in the water collecting well, ensure the safety of downstream water quality, and urgently need to explore a new type of efficient, safe and environmentally friendly oil stain cleaning method, realize effective treatment of oil stains in the water collecting well, improve the efficiency of oil stain cleaning, reduce the risk of manual operation, and reduce the burden of manual operation.

[0024] Therefore, an air blowing assembly for oil surface is conceived, which can effectively clean oil stains with reduced labor input, meet environmental protection requirements, reduce potential risks of downhole operation, and ensure the safety of operating personnel.

[0025] As Figure 1As shown, the air blowing assembly comprises a gas supply pipeline 10, one end of the gas supply pipeline 10 is connected with a gas source, and the other end of the gas supply pipeline 10 is provided with an air blowing section 13 arranged on the water surface for blowing the oil stains on the water surface, and the air blowing section 13 is provided with an air blowing port 14 in communication with the gas supply pipeline 10.

[0026] According to common sense, oil and water are incompatible, and the same volume of oil is much lighter than water, that is, under the same conditions, the density of oil is less than that of water, so oil always floats on the water surface. The conception of the utility model is to first arrange an air blowing assembly on the water surface, and arrange the air blowing section 13 at the shore, because the oil is floating on the water surface, so by controlling the gas supply of the gas supply pipeline 10, the air blowing port 14 blows air to the water surface, and the oil stains floating on the water surface of the water collecting well are blown into the oil collecting tank 30 on the opposite side for centralized treatment. In this way, the time for entering the water collecting well for operation can be reduced, and the safety risk of operation is greatly reduced.

[0027] In order to keep the air blowing section 13 on the water surface at all times, in one embodiment, the air blowing assembly further comprises a carrier 20, and the air blowing section 13 is arranged on the carrier 20 and kept on the water surface by the carrier 20.

[0028] Specifically, the carrier 20 can keep the air blowing section 13 on the water surface by at least the following two different ways,

[0029] One of them is that the carrier 20 is connected with the water body shore and can slide up and down, and a locking member for locking the height of the carrier 20 is arranged between the carrier 20 and the water body shore. The carrier 20 can be a plate structure, and the side close to the shore can be a sliding block matched with a sliding groove of the shore, and then a locking bolt is arranged on the sliding block, when the air blowing section 13 is just located on the water surface by adjusting to the appropriate height, the locking bolt is tightened, and the sliding block is fixed in the sliding groove.

[0030] The other is that the carrier 20 is a floating raft, the air blowing section 13 is arranged at a suitable position on the floating raft, and the floating raft supports the air blowing section 13, so that the air blowing section 13 is just located on the water surface.

[0031] It should be noted that the water level will change, therefore, the gas supply pipeline 10 can be divided into three sections, as Figure 2 shown, which are a gas supply section 11 connected with the gas source, an intermediate section 12 connected with the gas supply section 11 and the air blowing section 13, and the air blowing section 13, and the intermediate section 12 can adopt the form of a hose to adapt to the height change of the air blowing section 13 caused by the height change of the water surface.

[0032] Generally speaking, the air pressure required by the air blowing assembly does not necessarily match the air pressure of the gas source completely, in order to obtain the required air pressure, the utility model further provides an oil blowing device for the oil surface, which comprises any one of the air blowing assemblies as described above, as Figure 2As shown, the gas supply pipeline 10 is connected to the gas source at one end, and is provided with a valve group 15 for pressure regulation.

[0033] Specifically, in one embodiment, the control valve group 15 includes a mechanical valve 16 and a remote control valve 17, which can be arranged in the above-mentioned gas supply section 11. The mechanical valve 16 is arranged on the side of the remote control valve 17 close to the gas source.

[0034] Before cleaning the oil in the water collection well, open the mechanical valve 16, and after reaching the required gas pressure, close the mechanical valve 16 to stop the aeration. When cleaning the oil, control the remote control valve 17 to open to release the gas pressure on the water surface to achieve the purpose of cleaning the oil. Of course, in order to detect the gas pressure, a pressure gauge can be arranged between the mechanical valve 16 and the remote control valve 17 on the gas supply section 11.

[0035] The blowing pipe only uses gas pressure to move the oil to the other side. In order to effectively collect the oil gathered by blowing, an oil collection tank is needed to ensure that the oil on the water surface can enter the oil collection tank 30 and not flow back into the water collection well. The oil inlet structure of the oil collection tank needs to be improved, such as Figure 3 As shown, an oil collection tank includes a specially designed oil inlet structure for guiding oil into the oil collection tank at the inlet of the oil collection tank 30, which includes an oil inlet 31, and a labyrinth 32 is arranged at the rear end of the oil inlet 31 to form a labyrinth that blocks the backflow of oil.

[0036] The oil inlet 31 is the front end away from the inside of the oil collection tank 30, and the rear end is close to the inside of the oil collection tank 30.

[0037] The blowing device moves the oil to the oil collection tank 30, and the inlet of the oil collection tank 30 is uniformly provided with a plurality of oil inlet structures along the width direction of the inlet for guiding the oil into the oil collection tank 30, and the labyrinth structure can prevent the collected oil from flowing back.

[0038] The oil inlet 31 of the oil collection tank 30 can be set as a horn-shaped structure with a small outer diameter and a large inner diameter, and can be arc-shaped concave, so that the floating oil blown in can more easily enter the oil collection tank 30. Then, a labyrinth 32 is arranged at the rear end of the oil inlet 31 to prevent the backflow of the entering oil. The labyrinth 32 is isosceles triangular, the top angle of the labyrinth 32 is located in the middle of the oil inlet 31, the two bottom angles of the labyrinth 32 are located on both sides of the rear end of the oil inlet, and the two waist edges of the labyrinth are arc-shaped concave. In this way, it is ensured that the collected oil in the oil collection tank 30 only enters but does not exit, and the combination structure of the blowing device and the oil collection tank 30 is as shown in Figure 4 .

[0039] In order to test the oil blowing device and the oil collecting tank 30 on the water collecting well oil pollution cleaning effect, select foam board to simulate the water collecting well and the oil collecting tank 30, and use the oil blowing device to blow oil pollution to the oil collecting tank 30 for experiment.

[0040] In the experiment, it is found that if the air pressure of the oil blowing device is too large, the water splash on the water surface will be splashed, which will cause the oil pollution to be not effectively cleaned, but if the air pressure of the oil blowing device is too small, the oil pollution cannot be completely blown into the oil collecting tank 30. In order to find the best air pressure value for cleaning oil pollution, after repeated adjustment of air pressure and multiple experiments, the best air pressure range of 0.1~0.15MPa for cleaning effect is finally found, if the air pressure is greater than this pressure, the water splash on the water surface will be too large, and the cleaning effect will be poor, and if the air pressure is less than this pressure, the oil pollution cannot be completely cleaned, only in this air pressure range, the floating oil can be completely blown into the oil collecting tank 30, and the significant cleaning effect can be obtained.

[0041] After the oil pollution is just cleaned, the oil pollution is completely collected in the right oil collecting tank 30; after standing for two days after cleaning, the oil pollution does not flow back into the water collecting well; after standing for a week, the labyrinth ring 32 is effective, and the oil pollution is completely collected in the oil collecting tank 30 and does not flow back.

[0042] The above-described embodiments only express the specific implementation of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the patent range of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection range of the present application.

Claims

1. An oil inlet structure for guiding oil dirt into a sump provided at an inlet of the sump, characterized by comprising: an oil inlet portion provided at the inlet of the sump; and a guide portion provided at the oil inlet portion and having a guide surface for guiding the oil dirt toward the oil inlet portion. The oil inlet is provided with a labyrinth element at the rear end, the labyrinth element is isosceles triangle, the top angle of the labyrinth element is located in the middle of the oil inlet, the two bottom angles of the labyrinth element are located at the two sides of the rear end of the oil inlet, the two waist edges of the labyrinth element are arc-shaped concave, and the labyrinth element and the oil inlet form a labyrinth that blocks the backflow of oil dirt.

2. The oil inlet structure according to claim 1, wherein The oil inlet is trumpet-shaped with a small outer diameter and a large inner diameter.

3. The oil inlet structure according to claim 2, wherein The two sides of the oil inlet are arc-shaped concave.

4. The oil inlet structure according to claim 3, wherein The labyrinth element is isosceles triangle, the top angle of the labyrinth element is located in the middle of the oil inlet, the two bottom angles of the labyrinth element are located at the two sides of the rear end of the oil inlet, and the two waist edges of the labyrinth element are arc-shaped concave.

5. A sump, characterized by The oil inlet structure is provided at the inlet of the tank body.

6. The sump of claim 5, wherein, A plurality of oil inlet structures are uniformly provided along the width direction of the inlet at the inlet of the tank body.

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