Accident oil pool of mountain photovoltaic power generation box-type transformer

Abstract

The utility model belongs to the technical field of accident oil pools, and discloses an accident oil pool of a mountain photovoltaic power generation box-type transformer, which comprises an oil storage pool, an oil inlet and an inspection opening which are integrally formed, the oil storage pool is a cavity with a preset volume, and a pit protruding downwards is formed in the bottom of the oil storage pool; the oil inlet is formed in the side surface of the top of the oil storage pool and is communicated with an oil outlet of the transformer; the inspection opening is formed in the upper end of the oil storage pool and provided with an openable cover body. Compared with a traditional bricking or concrete cast-in-place manufacturing mode, the oil pool is integrally formed, engineering prefabrication and on-site hoisting can be achieved, transportation and installation are easy, the construction difficulty in mountain areas can be greatly lowered, the construction period is shortened, the oil pool can be rapidly put into use when needed, and good economic benefits and social benefits are achieved.

Description

Technical Field

[0001] The utility model discloses an accident oil pool of a mountain photovoltaic power generation box-type transformer, belonging to the technical field of accident oil pools. Background Art

[0002] The development and utilization of solar energy is a key measure to adjust the energy development strategy and power structure. With the attention paid to environmental pollution and energy consumption in various regions, the photovoltaic power generation industry has received more attention. By building photovoltaic power stations, the energy structure can be improved to achieve sustainable economic and environmental development. The new energy photovoltaic power generation industry is gradually moving towards steep, undulating and irregular mountain photovoltaics. Due to the complexity of the terrain conditions, the location of the box transformer in the photovoltaic area is also faced with factors such as harsh geographical conditions and small sites, which increases the difficulty of the construction of the box transformer and its accident oil pool.

[0003] Traditional accident oil pools are mostly buried reinforced concrete oil pools formed by pouring concrete after excavating the foundation. Due to the complex mountain terrain, excavating the foundation or pouring concrete on the complex mountainous land greatly increases the difficulty of construction, which increases the construction cost. In addition, concrete oil pools are easily infiltrated by impurities such as rainwater and sludge, which is not conducive to the recycling of accident oil. Utility Model Content

[0004] The utility model overcomes the shortcomings of the prior art and proposes an accident oil pool for a mountain photovoltaic power generation box-type transformer, comprising an integrally formed oil storage pool, an oil inlet and an inspection port;

[0005] The oil storage tank is a cavity of a preset volume, and a pit protruding downward is provided at the bottom of the oil storage tank;

[0006] The oil inlet is arranged on the top side surface of the oil storage tank and is connected to the oil outlet of the transformer;

[0007] The inspection port is arranged at the upper end of the oil storage tank, and the inspection port is provided with an openable cover.

[0008] Preferably, it also includes a cooling device;

[0009] The cooling device is coated on the outer wall of the oil storage tank.

[0010] Preferably, the cooling device specifically includes a cooling circulation pipeline, a cooling pipe and a cooling pool;

[0011] The cooling circulation pipeline is spirally wound around the outer wall of the oil storage tank;

[0012] The cooling pipe is connected to the inlet of the cooling circulation pipeline and is used to provide cooling medium to the cooling circulation pipeline;

[0013] The cooling pool is connected to the outlet of the cooling circulation pipeline.

[0014] Preferably, the cooling device further comprises a temperature monitor and a cooling circulation pump;

[0015] The temperature monitor is arranged at the oil inlet and connected to the cooling circulation pump, and is used to control the opening and closing of the cooling circulation pump according to the monitored temperature;

[0016] The cooling circulation pump is arranged on the cooling pipe.

[0017] Preferably, the cooling medium is water.

[0018] Preferably, it also includes a liquid level sensor;

[0019] The liquid level sensor is arranged on the inner wall of the oil storage tank.

[0020] Preferably, both the inner wall and the outer wall of the oil storage tank are coated with a protective coating.

[0021] Preferably, the oil storage tank is made of one of steel, fiberglass and high-density polyethylene.

[0022] Preferably, it also includes an oil pool foundation;

[0023] The oil storage tank is fixedly assembled on the oil tank base.

[0024] Beneficial effects: The oil pool of the utility model is integrally formed. Compared with the traditional brickwork or cast-in-place concrete production method, it can realize engineering prefabrication and on-site hoisting, is easy to transport and install, can greatly reduce the construction difficulty in mountainous areas, shorten the construction period, and can be quickly put into use when needed, with good economic and social benefits. At the same time, the inner and outer walls of the oil pool of the utility model are added with a protective coating, which can isolate the contact between the external soil and the internal accident oil and the oil pool, avoid damage caused by corrosion, ensure the sealing performance of the oil pool, and prevent oil leakage. The utility model improves the secondary utilization of accident oil and reduces the risk of thermal damage to the oil pool through cooling, cleaning and recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the connection between the box transformer and the oil storage tank of the utility model;

[0026] Figure 2 It is a structural schematic diagram of the oil storage tank in the embodiment of the utility model.

[0027] In the figure: 1. Transformer; 2. Oil outlet; 3. Oil drain pipe; 4. Oil inlet; 5. Oil storage tank; 6. Inspection port; 7. Transformer oil tank; 8. Cooling pipe; 9. Cooling circulation pipeline; 10. Cooling tank; 11. Liquid level sensor. DETAILED DESCRIPTION

[0028] In the following description, specific details such as specific system structures and technologies are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems and devices are omitted to avoid unnecessary details that hinder the description of the present invention.

[0029] The preferred technical solution of the utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0030] An accident oil pool of a mountain photovoltaic power generation box-type transformer comprises an integrally formed oil storage pool 5, an oil inlet 4 and an inspection port 6; the oil storage pool 5 is a cavity of a preset volume, and a downwardly protruding pit is arranged at the bottom of the oil storage pool 5; the oil inlet 4 is arranged on the top side surface of the oil storage pool 5 and is connected with the oil outlet 2 of the transformer; the inspection port 6 is arranged at the upper end of the oil storage pool 5, and the inspection port 6 is provided with an openable cover.

[0031] Specifically, the oil storage tank 5 of the utility model is integrally formed, and the bottom of the oil storage tank 5 is designed to be concave in order to facilitate the extraction of the accident oil. When the accident oil is discharged into the oil storage tank 5, the concave design can concentrate the oil in an area at the bottom of the tank, effectively reducing the invalid liquid depth, and facilitating the subsequent better discharge of the oil. Furthermore, in order to prevent the high-temperature accident oil discharged from the transformer from causing high-temperature damage to the oil storage tank 5, or to prevent the high-temperature accident oil from gasifying when it is discharged into the oil storage tank 5, causing the oil storage tank 5 to have an explosion risk. The utility model also includes a cooling device; the cooling device is coated on the outer wall of the oil storage tank 5.

[0032] Furthermore, the cooling device specifically includes a cooling circulation pipe 9, a cooling pipe 8 and a cooling pool 10; the cooling circulation pipe 9 is spirally wound on the outer wall of the oil storage pool 5; the cooling pipe 8 is connected to the inlet of the cooling circulation pipe 9 to provide cooling medium to the cooling circulation pipe 9; and the cooling pool 10 is connected to the outlet of the cooling circulation pipe 9. The cooling circulation pipe 9 is evenly spirally wound on the outer wall of the oil storage pool 5, which can effectively prevent the oil storage pool 5 from being deformed due to uneven cooling.

[0033] Furthermore, in actual applications, the cooling device also includes a temperature monitor and a cooling circulation pump; the temperature monitor is arranged at the oil inlet 4 and connected to the cooling circulation pump, and is used to control the opening and closing of the cooling circulation pump according to the monitored temperature; the cooling circulation pump is arranged on the cooling pipe 8.

[0034] Specifically, in this embodiment, it also includes a water supply pool connected to the cooling pipe 8. The cooling pipe 8 pumps water in the water supply pool into the cooling circulation pipe 9 through a cooling circulation pump. The cooling pool 10 is connected to the outlet of the cooling circulation pipe 9, and is used to collect and store the cooling medium that has absorbed heat in the cooling circulation pipe 9. Specifically, in this embodiment, in order to save resources, the cooling pool 10 is connected to the water supply pool. A temperature monitoring device is provided in the cooling pool 10. When the medium in the cooling pool 10 is cooled to a preset temperature, the medium in the cooling pool 10 is pumped into the water supply pool to achieve the recycling of the medium. In actual applications, the cooling medium is water to reduce cooling costs. In areas with abundant water resources, non-connected cooling pools 10 and water supply pools can also be used. Figure 2 As shown, in this embodiment, the cooling pool 10 and the water supply pool are the same device, which can meet the cooling needs.

[0035] Furthermore, the utility model further comprises a liquid level sensor 11 ; the liquid level sensor 11 is arranged on the inner wall of the oil storage tank 5 .

[0036] Specifically, in this embodiment, the liquid level sensor 11 reports the liquid level in the oil storage tank 5 to the management device in real time or at preset intervals. Those skilled in the art can set an alarm level according to the actual project. When the liquid level in the oil storage tank 5 is greater than or equal to the alarm level, the management device issues an alarm and reports the number, location and liquid level of the oil storage tank 5 to the management personnel, so that the staff can export the oil in time.

[0037] Furthermore, in order to prevent the oil in the oil tank 5 from contacting the oil tank 5 or the soil outside the oil tank 5 from corroding the oil tank 5, the inner and outer walls of the oil tank 5 in the utility model are coated with a protective coating, thereby reducing the possibility of corrosion of the oil tank 5 and increasing its service life.

[0038] Furthermore, the material of the oil storage tank 5 is selected from one of steel, fiberglass and high-density polyethylene. The above materials can be integrally formed, and at the same time, the material is corrosion-resistant and sealable. Compared with the traditional brickwork or cast-in-place concrete production method, it can realize engineering prefabrication and on-site hoisting, easy to transport and install, can greatly reduce the construction difficulty in mountainous areas, shorten the construction period, and can be quickly put into use when needed, with good economic and social benefits.

[0039] Furthermore, in areas with complex terrain such as mountains and hills, soil erosion may cause the foundation of the oil storage tank 5 to become loose or damaged. Therefore, the utility model also includes an oil tank foundation; the oil storage tank 5 is fixedly assembled on the oil tank foundation. The bearing capacity of the oil tank foundation is determined according to the local geological survey conditions to ensure that the soil or rock layer at the bottom of the oil storage tank 5 can bear the weight of the oil storage tank 5 and its contents. The oil storage tank 5 has good stability to cope with possible geological changes and natural disasters.

[0040] In other embodiments, those skilled in the art may set up retaining walls or slope protection around the oil storage tank 5 according to geological survey conditions.

[0041] The installation process of the utility model is as follows: First, after the installation of the box-type transformer is completed, select a suitable location around the box-type transformer 1 to set up an emergency oil pool. First, according to the capacity of the box-type transformer, process the oil storage tank 5 of the appropriate size, and then excavate a suitable foundation pit at the appropriate location, set the oil storage tank foundation in the foundation pit, place the oil storage tank 5 in the pit, and fix it on the oil storage tank foundation to ensure stability; then set the cooling device in the foundation pit and connect it to the oil storage tank 5. It should be noted that the water supply tank and cooling tank 10 in the cooling device can be excavated in separate foundation pits, or they can be located in the same foundation pit as the oil storage tank 5. Backfill and compact the foundation pit to one-half, such as Figure 1 As shown, the oil drain pipe 3 is connected to the oil outlet 2 of the box transformer oil tank 7 and the oil inlet 4 of the oil storage tank 5, respectively, and the sealing of the connection is ensured to be qualified, and finally the foundation pit is backfilled and compacted. When the transformer fails, the accident oil will pass through the oil outlet 2 and the oil drain pipe 3 into the oil storage tank 5. The volume of the oil storage tank 5 fully meets the use requirements of the box transformer. The bottom of the accident oil pool is concave. When the accident oil in the oil storage tank 5 reaches the alarm level, the inspection port 6 is opened, and the oil pump is placed in the concave part of the pool bottom to extract all the accident oil through the inspection port 6. The oil pool of the utility model is integrally formed. Compared with the traditional brickwork or cast-in-place concrete production method, it can realize engineering prefabrication and on-site hoisting, is easy to transport and install, can greatly reduce the construction difficulty in mountainous areas, shorten the construction period, and can be quickly put into use when needed, with good economic and social benefits. At the same time, the utility model adds protective coatings to the inner and outer walls of the oil pool, which can isolate the external soil and the internal accident oil from contacting the oil pool, avoid damage caused by corrosion, ensure the sealing performance of the oil pool, and prevent oil leakage. The utility model improves the secondary utilization of accident oil and reduces the risk of thermal damage to the oil pool through cooling, cleaning and recycling.

[0042] The above are only several embodiments of the utility model, and do not limit the utility model in any form. Although the utility model is disclosed as above in the preferred embodiments, it is not used to limit the utility model. Any technician familiar with this profession, without departing from the scope of the technical solution of the utility model, makes slight changes or modifications using the technical contents disclosed above, which are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. An accident oil pool for a mountain photovoltaic power generation box transformer, characterized in that: Includes an integrally formed oil reservoir, oil inlet and inspection port; The oil storage tank is a cavity of a preset volume, and a pit protruding downward is provided at the bottom of the oil storage tank; The oil inlet is arranged on the top side surface of the oil storage tank and is connected to the oil outlet of the transformer; The inspection port is arranged at the upper end of the oil storage tank, and the inspection port is provided with an openable cover.

2. The accident oil pool according to claim 1, characterized in that: Also includes a cooling device; The cooling device is coated on the outer wall of the oil storage tank.

3. The accident oil pool according to claim 2, characterized in that: The cooling device specifically includes a cooling circulation pipeline, a cooling pipe and a cooling pool; The cooling circulation pipeline is spirally wound around the outer wall of the oil storage tank; The cooling pipe is connected to the inlet of the cooling circulation pipeline and is used to provide cooling medium to the cooling circulation pipeline; The cooling pool is connected to the outlet of the cooling circulation pipeline.

4. The accident oil pool according to claim 3, characterized in that: The cooling device also includes a temperature monitor and a cooling circulation pump; The temperature monitor is arranged at the oil inlet and connected to the cooling circulation pump, and is used to control the opening and closing of the cooling circulation pump according to the monitored temperature; The cooling circulation pump is arranged on the cooling pipe.

5. The accident oil pool according to claim 3, characterized in that: The cooling medium is water.

6. The accident oil pool according to claim 1, characterized in that: Also included is a level sensor; The liquid level sensor is arranged on the inner wall of the oil storage tank.

7. The accident oil pool according to claim 1, characterized in that: The inner wall and the outer wall of the oil storage tank are coated with a protective coating.

8. The accident oil pool according to claim 1, characterized in that: The material of the oil storage tank is selected from one of steel, glass fiber reinforced plastic and high-density polyethylene.

9. The accident oil pool according to claim 1, characterized in that: Also included are oil pool foundations; The oil storage tank is fixedly assembled on the oil tank base.

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