Rainwater drainage device for accident oil storage tank

Abstract

The utility model discloses an accident oil storage pool rainwater drainage device which comprises a rainwater drainage assembly. The rainwater drainage assembly comprises an oil pool, a water sump arranged at the bottom of the oil pool, an oil drainage pipe communicated with the oil pool, an oil pipe control valve arranged on the oil drainage pipe, a slope bottom plate arranged on the inner side of the oil pool, a water scattering pool arranged on the outer side of the oil pool and a water drainage pipe communicated with the oil pool. According to the utility model, by arranging the rainwater drainage group, when the liquid level in the oil pool is higher than the horizontal pipeline at the upper part of the drainage pipe, the rainwater is automatically drained out of the pool and falls onto the scattered water outside the pool by utilizing an inverted siphon principle without any electric power, so that the transformer oil in the oil pool is always located at the upper part of the oil pool, and the leakage is avoided; rainwater is uninterruptedly discharged out of the pool, the automatic rainwater discharging function is achieved, an oil way valve is opened according to the oil amount in the pool during maintenance by an operator, transformer oil in the pool is pumped and discharged into an oil barrel to be transported outwards, and the transformer oil is prevented from polluting the environment.

Description

Technical Field

[0001] This utility model relates to the field of new energy power generation technology, specifically to a rainwater discharge device for an emergency oil storage tank. Background Technology

[0002] With the large-scale construction of photovoltaic and wind power projects in my country, oil-immersed transformers have become widely used, installed in numerous photovoltaic and wind farms, playing an indispensable role in new energy power generation projects. Due to the nature of oil-immersed transformers, several tons of mineral oil are stored within the transformer body as an insulation and heat dissipation medium. An emergency oil sump should be installed at the bottom of the transformer for collecting leaked oil in case of accidents, thus preventing environmental pollution. Outdoor oil sumps, due to their shape, inevitably accumulate rainwater. If operators fail to clean them promptly, leaks may occur due to freezing and corrosion. Utility Model Content

[0003] Therefore, the purpose of this utility model is to provide a rainwater discharge device for an emergency oil storage tank. Through the rainwater discharge group, without the need for any electricity, when the liquid level in the oil tank is higher than the upper horizontal pipe of the drain pipe, the rainwater is automatically discharged to the outside of the tank using the inverted siphon principle, falling onto the water surface outside the tank. This ensures that the transformer oil in the oil tank is always at the upper part of the tank, preventing leakage, while the rainwater is continuously discharged outside the tank, realizing the automatic rainwater discharge function. Furthermore, when the operators are inspecting the tank, they can open the oil circuit valve according to the amount of oil in the tank to pump the transformer oil in the tank to the oil drum for external transportation and disposal, avoiding environmental pollution from the transformer oil.

[0004] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution: a rainwater discharge device for an emergency oil storage tank, comprising:

[0005] The rainwater drainage assembly includes an oil tank, a sump at the bottom of the oil tank, an oil drain pipe connected to the oil tank, an oil pipe control valve on the oil drain pipe, a sloping bottom plate inside the oil tank, a drainage pool outside the oil tank, a drain pipe connected to the oil tank, and inlets and outlets at both ends of the drain pipe.

[0006] In a preferred embodiment of the rainwater discharge device for an accident oil storage tank according to the present invention, the outlet is located directly above the water distribution tank, and the water droplets discharged from the outlet fall into the water distribution tank.

[0007] As a preferred embodiment of the rainwater discharge device for an accident oil storage tank according to the present invention, it further includes an auxiliary structure, which includes an annular outer frame fixed to the outside of the drainage pool, and a first slope, a second slope, a third slope and a fourth slope disposed within the annular outer frame.

[0008] In a preferred embodiment of the rainwater discharge device for an accident oil storage tank described in this utility model, the first slope, the second slope, the third slope and the fourth slope guide the water flow to the corners of the annular outer frame.

[0009] As a preferred embodiment of the rainwater discharge device for an emergency oil storage tank according to the present invention, the auxiliary structure further includes a water outlet pipe connected to the corner of the annular outer frame.

[0010] There are four water outlet pipes.

[0011] As a preferred embodiment of the rainwater discharge device for an accident oil storage tank described in this utility model, the end of the water outlet pipe is provided with an external thread, and the water outlet pipe is connected to an external pipe through the external thread.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] 1. Through the rainwater drainage system, without the need for any electricity, when the liquid level in the oil tank is higher than the upper horizontal pipe of the drain pipe, the rainwater is automatically discharged to the outside of the tank using the inverted siphon principle, falling onto the water surface outside the tank. This ensures that the transformer oil in the oil tank is always at the upper part of the tank, preventing leakage, while rainwater is continuously discharged outside the tank, realizing the automatic rainwater drainage function. In addition, when the operators are inspecting, they can open the oil circuit valve according to the amount of oil in the tank to pump the transformer oil in the tank to the oil drum for internal and external transportation and disposal, avoiding transformer oil pollution to the environment.

[0014] Second, by setting up auxiliary structures, the overflow of the drainage pool is diverted to avoid water overflow or splashing, which could cause the foundation to be eroded for a long time and affect the stability of the foundation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0016] Figure 1 This is a structural diagram of the present invention;

[0017] Figure 2 This is a structural diagram of the water distribution tank of this utility model;

[0018] Figure 3 This is an enlarged view of the structure of the first slope of this utility model.

[0019] In the diagram: 1. Drain pipe; 2. Inlet; 3. Outlet; 4. Sump; 5. Oil drain pipe; 6. Oil pipe control valve; 7. Sloping base plate; 8. Drainage pool; 81. Circular outer frame; 82. First slope; 83. Second slope; 84. Third slope; 85. Fourth slope; 86. Outlet pipe. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0024] This utility model provides a rainwater discharge device for an emergency oil storage tank. Through the established rainwater discharge system, without the need for any electricity, when the oil level in the tank is higher than the upper horizontal pipe of the drain pipe, the rainwater is automatically discharged outside the tank using the inverted siphon principle, falling onto the outer slick of the tank. This ensures that the transformer oil in the tank remains at the top, preventing leakage, while rainwater is continuously discharged outside the tank, achieving automatic rainwater discharge. Furthermore, during maintenance, operators can open the oil circuit valves according to the oil level in the tank to pump the transformer oil into oil drums for external and internal transportation and disposal, preventing transformer oil from polluting the environment.

[0025] Figures 1 to 3 The diagram shown is an overall structural schematic of one embodiment of the rainwater discharge device for an emergency oil storage tank according to this utility model. Please refer to [link / reference]. Figures 1 to 3 The main structure of this embodiment includes: a rainwater drainage component.

[0026] The rainwater drainage assembly is used for siphon drainage. Specifically, the rainwater drainage assembly includes an oil tank 9, a water collection pit 4 at the bottom of the oil tank 9, an oil drain pipe 5 connected to the oil tank 9, an oil pipe control valve 6 on the oil drain pipe 5, a sloping bottom plate 7 on the inner side of the oil tank 9, a water distribution pool 8 on the outer side of the oil tank 9, a drain pipe 1 connected to the oil tank 9, and inlets 2 and outlets 3 at both ends of the drain pipe 1.

[0027] In practical use, height H1 in the diagram is the liquid level of the oil tank after all transformer oil is discharged, height H2 is the total height of transformer oil and water in the oil tank, and also the minimum height for drainage from the drain pipe, and H3 is 10cm to 20cm below the liquid level of H1. Transformer accidental oil discharge and leakage will drip directly into the oil tank 9. The sloping bottom plate 7 facilitates the collection of mud and oil. Since the water inlet 2 is located at the location of the water accumulation pit 4, when it rains outside, the rainwater falls directly into the oil tank 9. At this time, the oil and water separate, and the liquid level in the entire oil tank 9 rises until the liquid level in the oil tank 9 is higher than the top of the drain pipe 1. At this time, due to the siphon effect, the drain pipe 1 starts to work and automatically drains the water. The discharged water drips directly into the drainage pool 8. Since there is liquid water in the drainage pool 8, this avoids the water directly impacting the bottom surface, causing the foundation to loosen and affecting the stability of the foundation.

[0028] Furthermore, it also includes an auxiliary structure, which includes an annular outer frame 81 fixed to the outside of the drainage pool 8, and a first ramp 82, a second ramp 83, a third ramp 84, and a fourth ramp 85 disposed within the annular outer frame 81; the first ramp 82, the second ramp 83, the third ramp 84, and the fourth ramp 85 guide the water flow to the corners of the annular outer frame 81; the auxiliary structure also includes a water outlet pipe 86 connected to the corners of the annular outer frame 81; wherein, four water outlet pipes 86 are provided;

[0029] In practical use, if water overflows from the drainage pool 8, the water will overflow directly into the annular outer frame 81. At this time, the first slope 82, the second slope 83, the third slope 84 and the fourth slope 85 will guide the water to the corner of the annular outer frame 81 and discharge it through the outlet pipe 86. The outlet pipe 86 is connected to the external pipe, so that the water can be transported to a distance far from the foundation to avoid affecting the foundation.

[0030] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An apparatus for draining rainwater from an incident oil sump, the apparatus comprising: It comprises: A rainwater discharge assembly, which comprises an oil pool (9), a water sump (4) arranged at the bottom of the oil pool (9), a drain pipe (5) in communication with the oil pool (9), an oil pipe control valve (6) arranged on the drain pipe (5), a sloping bottom plate (7) arranged inside the oil pool (9), a water dispersion pool (8) arranged outside the oil pool (9), a drain pipe (1) in communication with the oil pool (9), a water inlet (2) and a water outlet (3) arranged at both ends of the drain pipe (1).

2. A stormwater discharge arrangement for an incident retention basin according to claim 1, characterised in that, The water outlet (3) is located directly above the water dispersion pool (8), and the water discharged from the water outlet (3) falls into the water dispersion pool (8).

3. A stormwater discharge arrangement for an incident retention basin according to claim 2, wherein, It also comprises an auxiliary structure, which comprises an annular outer frame (81) fixed outside the water dispersion pool (8), a first slope (82), a second slope (83), a third slope (84) and a fourth slope (85) arranged inside the annular outer frame (81).

4. A stormwater discharge arrangement for an incident retention basin according to claim 3, wherein, The first slope (82), the second slope (83), the third slope (84) and the fourth slope (85) guide the water flow to the corner position of the annular outer frame (81).

5. A stormwater discharge arrangement for an incident retention basin according to claim 4, wherein, The auxiliary structure further comprises a water outlet pipe (86) in communication with the corner position of the annular outer frame (81). Among them, the water outlet pipe (86) is provided with four.

6. A stormwater discharge arrangement for an incident retention basin according to claim 5, characterised in that: The end of the water outlet pipe (86) is provided with external threads, and the water outlet pipe (86) is connected with the pipeline outside through the external threads.

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