Integrally prefabricated combined type accident oil pool

Abstract

The utility model discloses an integral prefabricated combined type accident oil pool, which relates to the technical field of transformer substation safety, and comprises an oil inlet connecting header pipe used for being connected with a transformer blow-off pipe network; the sewage discharge connecting header pipe is used for being connected with a municipal drainage network; an oil inlet pipe and a blow-off pipe are arranged on the prefabricated oil pool unit, the oil inlet pipe is connected with the oil inlet connecting header pipe, the blow-off pipe is connected with the blow-off connecting header pipe, the height of the oil inlet pipe is larger than that of the blow-off pipe, and the height of the blow-off pipe is larger than that of the blow-off pipe. The blow-off pipe extends into the prefabricated oil pool unit and is arranged close to the bottom of the prefabricated oil pool unit, and the prefabricated oil pool unit is integrally prefabricated. The technical problems that in the prior art, the on-site wet operation period of an accident oil pool is long, water and oil of a transformer substation are difficult to separate, and the operation efficiency is low can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of substation safety, and particularly relates to a whole prefabricated combined type accident oil pool. BACKGROUND

[0002] As a core facility of substation safety management, the accident oil pool plays an important role in collecting leaked oil, preventing environmental pollution and ensuring safe operation of equipment. In the traditional design, the accident oil pool is usually arranged on the ground or the foundation of an existing building, and is constructed by using masonry, prefabricated module assembly or cast-in-place reinforced concrete process, and the construction process covers the steps of pit excavation, bottom pouring, well room construction, pipeline connection, prefabricated oil pool cover plate installation and backfilling repair.

[0003] However, with the expansion of the construction scale of the substation and the improvement of environmental protection requirements, the traditional design and construction mode of the accident oil pool usually adopts the construction scheme of whole excavation, but has defects such as large occupation of site, on-site wet operation, high energy consumption, low mechanization degree, not environmentally friendly, long construction period and the like, and sometimes needs to wait for 10-14 days after the masonry mortar or cast-in-place concrete reaches the working strength to start the next construction process, which is low in operation efficiency, difficult to separate the stored water-oil mixture and inconvenient to use. SUMMARY

[0004] The present application provides a whole prefabricated combined type accident oil pool, which can solve the technical problems of long construction period of on-site wet operation of the accident oil pool, difficulty in separating water and oil of the substation and low operation efficiency in the prior art.

[0005] The present application provides a whole prefabricated combined type accident oil pool, which can solve the technical problems of long construction period of on-site wet operation of the accident oil pool, difficulty in separating water and oil of the substation and low operation efficiency in the prior art.

[0006] An oil inlet connecting main pipe for connecting a transformer sewage pipe network;

[0007] A sewage discharge connecting main pipe for connecting a municipal drainage network;

[0008] At least one prefabricated oil pool unit, which is provided with an oil inlet pipe and a sewage discharge pipe, the oil inlet pipe is connected with the oil inlet connecting main pipe, the sewage discharge pipe is connected with the sewage discharge connecting main pipe, the height of the oil inlet pipe is greater than that of the sewage discharge pipe, the sewage discharge pipe is arranged inside the prefabricated oil pool unit and close to the bottom of the prefabricated oil pool unit, and the prefabricated oil pool unit is prefabricated as a whole.

[0009] In an embodiment, the prefabricated oil pool unit comprises:

[0010] A prefabricated oil pool bottom plate;

[0011] A prefabricated oil pool cylinder wall is arranged on the prefabricated oil pool bottom plate, the oil inlet pipe and the sewage pipe are arranged on opposite sides of the prefabricated oil pool cylinder wall;

[0012] A prefabricated oil pool top plate is arranged at one end of the prefabricated oil pool cylinder wall away from the prefabricated oil pool bottom plate, and a manhole is arranged on the prefabricated oil pool top plate;

[0013] A prefabricated oil pool cover plate is arranged at the manhole, and a ventilation pipe is arranged on the prefabricated oil pool cover plate.

[0014] In an embodiment, the prefabricated oil pool unit further comprises:

[0015] A height adjustment module is connected to the prefabricated oil pool top plate and the prefabricated oil pool cover plate at two ends in the height direction, and is used to adjust the distance between the prefabricated oil pool cover plate and the prefabricated oil pool top plate.

[0016] In an embodiment, the height adjustment module comprises:

[0017] A plurality of adjustment units are connected in sequence in the vertical direction, the lowermost adjustment unit is connected to the prefabricated oil pool top plate, and the uppermost adjustment unit is connected to the prefabricated oil pool cover plate.

[0018] In an embodiment, the adjustment unit is connected to the prefabricated oil pool top plate and the prefabricated oil pool cover plate through a rabbet.

[0019] In an embodiment, the rabbet connection is in the form of high-low openings, and the low opening of the rabbet connection is arranged close to the inner wall of the prefabricated oil pool unit module.

[0020] In an embodiment, a sealing element is arranged at the connection between the prefabricated oil pool cover plate and the adjustment unit.

[0021] In an embodiment, a ladder is arranged in the prefabricated oil pool cylinder wall, and the ladder is composed of a plurality of steps.

[0022] In an embodiment, a plurality of lifting hooks are arranged on the prefabricated oil pool top plate.

[0023] In an embodiment, a screen is arranged in the ventilation pipe.

[0024] The technical scheme provided by the embodiments of the present application has the beneficial effects of:

[0025] By prefabricating the prefabricated oil pool unit in the factory, the single prefabricated oil pool unit is used as a standard part, the number of prefabricated oil pool units is flexibly selected and matched according to the actual oil discharge demand of the user, the prefabricated oil pool unit is hoisted to the installation foundation pit, the several oil inlet pipes on the prefabricated oil pool unit are connected with the oil inlet connection header pipe, the several oil inlet pipes are connected in parallel with each other, the oil inlet connection header pipe is connected with the transformer blowdown pipe, the several blowdown pipes are connected with the blowdown connection header pipe, the several blowdown pipes are also connected in parallel with each other, the blowdown connection header pipe is connected with the municipal drainage network, and the construction and installation of the overall prefabricated combined accident oil pool can be completed, without site pouring of concrete. Each prefabricated oil pool unit is prefabricated in the factory, when there is more than one prefabricated oil pool unit, the several prefabricated oil pool units are sorted and combined to complete the construction, which greatly shortens the construction period of the accident oil pool, and because the several oil inlet pipes are connected in parallel, the drainage between the several prefabricated oil pool units does not interfere with each other, which is environmentally friendly and energy-saving, has high mechanization degree, improves work efficiency, can meet the requirements of different users, occupies less land, is flexible in layout, and is suitable for various newly-built and expanded transformer substations. When the oil-water mixture in the transformer pipe network flows into the prefabricated oil pool unit, the oil-water mixture is naturally stratified due to the difference in physical density between water and oil. At this time, water naturally sinks below oil. Because the blowdown pipe in the single prefabricated oil pool unit extends into the prefabricated oil pool unit and is close to the bottom of the prefabricated oil pool unit, the waste water can be preferentially discharged from the blowdown pipe during blowdown, which improves the drainage efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0027] Figure 1 It is an isometric view of the overall prefabricated combined accident oil pool in the present application.

[0028] Figure 2 It is a sectional view of the overall prefabricated combined accident oil pool in the present application.

[0029] Figure 3 It is a top view of a single prefabricated oil pool unit in the present application.

[0030] Figure 4 It is an arrangement mode of several prefabricated oil pool units in the present application.

[0031] In the figure: 1, prefabricated oil pool unit; 11, prefabricated oil pool bottom plate; 12, prefabricated oil pool cylinder wall; 121, oil inlet pipe; 122, sewage pipe; 123, ladder; 124, prefabricated oil pool top plate; 125, manhole; 2, prefabricated oil pool cover plate; 21, ventilation pipe; 22, lifting hook; 3, height adjustment module; 31, adjustment unit; 32, sealing element. DETAILED DESCRIPTION

[0032] In order to enable personnel in the technical field to better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0033] The embodiments of the present application provide a whole prefabricated combined accident oil pool, which can solve the problems of long field wet work period, high energy consumption and low operation efficiency of the accident oil pool in the prior art.

[0034] Reference Figure 1 and Figure 2 The whole prefabricated combined accident oil pool disclosed in the present application comprises an oil inlet connecting main pipe, a sewage connecting main pipe and at least one prefabricated oil pool unit 1. The prefabricated oil pool unit 1 is provided with an oil inlet pipe 121 and a sewage pipe 122. The height of the oil inlet pipe 121 on the prefabricated oil pool unit 1 is greater than the height of the sewage pipe 122. The sewage pipe 122 extends into the prefabricated oil pool unit 1 and is arranged close to the bottom of the prefabricated oil pool unit 1. After the water-oil mixture of the transformer substation pipe network enters the prefabricated oil pool unit 1, the water is separated from the oil due to the water-oil separation characteristics, and the water is settled below the oil. Therefore, when the sewage pipe 122 is discharged, the water can be preferentially discharged, and then the oil is separated and stored in the prefabricated oil pool unit 1.

[0035] The oil inlet connection manifold is connected with the oil inlet pipes 121, and when there are more than one prefabricated oil pool units 1, all the oil inlet pipes 121 are connected in parallel with each other, and the oil inlet connection manifold is used for connecting the transformer drainage pipe network, so that the water-oil mixture in the transformer drainage pipe network of the transformer substation can be randomly introduced into the prefabricated oil pool units 1. The drainage connection manifold is connected with the drainage pipes 122 of the prefabricated oil pool units 1, and the drainage connection manifold is used for connecting the municipal drainage network. When there are more than one prefabricated oil pool units 1, all the drainage pipes 122 are connected with the drainage connection manifold, and the plurality of drainage pipes 122 are connected in parallel with each other, so that the drainage between the plurality of prefabricated oil pool units 1 does not interfere with each other, and finally unified through the drainage connection manifold and discharged into the municipal drainage network. The prefabricated oil pool units 1 are integrally prefabricated in the factory, without the need for on-site pouring, and can be directly installed on the construction site. When there are more than one prefabricated oil pool units 1, the plurality of prefabricated oil pool units 1 are sorted and combined to complete the construction, which greatly shortens the construction period of the accident oil pool and is more convenient to use.

[0036] Referring to Figure 1 and Figure 2 In an embodiment of the present application, a single prefabricated oil pool unit 1 includes a prefabricated oil pool bottom plate 11, a prefabricated oil pool cylinder wall 12, a prefabricated oil pool top plate 124, and a prefabricated oil pool cover plate 2. The prefabricated oil pool cylinder wall 12 is arranged on the prefabricated oil pool bottom plate 11, the oil inlet pipe 121 and the drainage pipe 122 are arranged on the opposite sides of the prefabricated oil pool cylinder wall 12, the prefabricated oil pool top plate 124 is arranged at the top end of the prefabricated oil pool cylinder wall 12, and the prefabricated oil pool top plate 124 is provided with a manhole 125 for personnel to enter and exit the prefabricated oil pool unit 1. The prefabricated oil pool cylinder wall 12, the prefabricated oil pool bottom plate 11, and the prefabricated oil pool top plate 124 are integrally poured in the factory, and the prefabricated oil pool cover plate 2 is arranged at the manhole 125 of the prefabricated oil pool top plate 124, connected with the prefabricated oil pool unit through the height adjusting module, and provided with a ventilation pipe 21 on the prefabricated oil pool cover plate 2 to maintain the overall ventilation of the prefabricated oil pool unit 1.

[0037] In an embodiment of the present application, the oil inlet pipe 121 is specifically about 120-150 mm higher than the sewage pipe 122, the sewage pipe 122 extends into the inside of the prefabricated oil pool unit 1, and the opening of the sewage pipe 122 in the prefabricated oil pool unit 1 is arranged close to the prefabricated oil pool bottom plate 11 to facilitate the drainage of the single prefabricated oil pool unit 1. The height between the bottom inlet of the sewage pipe 122 and the prefabricated oil pool bottom plate 11 is specifically set to 300 mm. When selecting materials, the oil inlet pipe 121 and the sewage pipe 122 are specifically selected from carbon steel, stainless steel and other materials with good corrosion resistance and pressure resistance, thereby improving the durability and safety of the oil inlet pipe 121 and the sewage pipe 122. When installing the oil inlet pipe 121 and the sewage pipe 122 on the single prefabricated oil pool unit 1, the oil inlet pipe 121 and the sewage pipe 122 also need to be sealed with the prefabricated oil pool cylinder wall 12. In an embodiment of the present application, a high-elasticity, oil-resistant, corrosion-resistant sealing material can be used to seal and reinforce the connection between the oil inlet pipe 121 and the sewage pipe 122 and the prefabricated oil pool cylinder wall 12, such as a silicone seal strip or a rubber seal strip.

[0038] Further, when connecting the oil inlet pipes 121 and the oil inlet connection main pipe, oil inlet valves can be arranged at the connections between the oil inlet connection main pipe and the oil inlet pipes 121, thereby controlling the flow of water-oil mixture into the single prefabricated oil pool unit 1, stopping the delivery of oil to the single prefabricated oil pool unit 1, and facilitating the maintenance and operation management of the prefabricated oil pool units 1. When connecting the sewage pipes 122 and the sewage connection main pipe, sewage treatment devices such as oil-water separators or filters can be arranged at the connections between the sewage pipes 122 and the sewage connection main pipe, further improving the drainage efficiency, and sewage valves can be arranged at the connections between the sewage pipes 122 and the sewage connection main pipe, thereby controlling the flow and discharge time of sewage from the single prefabricated oil pool unit 1, making it more convenient to use.

[0039] In order to further improve the versatility of the single prefabricated oil pool unit 1, the single prefabricated oil pool unit 1 further comprises a height adjustment module 3, the two ends of the height adjustment module 3 in the height direction are connected to the prefabricated oil pool top plate 124 and the prefabricated oil cover plate 2 respectively, the height adjustment module 3 is used to adjust the distance between the prefabricated oil cover plate 2 and the prefabricated oil top plate, thereby changing the height of the single prefabricated oil pool unit 1, and adapting to more working conditions.

[0040] The height adjusting module 3 comprises a plurality of adjusting units 31, and each adjusting unit 31 is also prefabricated in the factory. When assembling on site, the number of adjusting units 31 can be changed to change the height of the single prefabricated oil pool unit 1, and then adapt to different heights of foundation pits. The plurality of adjusting units 31 are connected through a rabbet connection, and the assembling method is simple, so as to further shorten the construction period. The prefabricated oil pool cover plate 2 is arranged on the uppermost adjusting unit 31. In an embodiment of the present application, the cross-sectional area of the adjusting unit 31 is adapted to the prefabricated oil pool cover plate 2, and the lowermost adjusting unit 31 is connected with the opening of the prefabricated oil pool top plate 124. The prefabricated oil pool cover plate 2 and the adjusting unit 31 are also connected through a rabbet connection. In order to improve the overall sealing performance of the prefabricated combined emergency oil pool, a sealing element 32 is arranged at the connection between the prefabricated oil pool cover plate 2 and the adjusting unit 31. In an embodiment of the present application, the sealing element 32 is specifically a silica gel sealing strip, so as to improve the sealing performance of the connection between the prefabricated oil pool cover plate 2 and the adjusting unit 31.

[0041] More specifically, when manufacturing the single prefabricated oil pool unit 1, the prefabricated oil pool bottom plate 11, the prefabricated oil pool cylinder wall 12 and the adjusting unit 31 are mainly made of reinforced concrete, and can specifically select C40 or C50 level. In the embodiment of the present application, all the rabbet connections are in the form of high-low openings, and the low opening of the rabbet is located on the side close to the inner wall of the prefabricated oil pool cylinder wall 12. If the low opening of the rabbet connection is close to the outer wall of the prefabricated oil pool cylinder wall 12, it is easy to accumulate materials in the opening during the paving of the ground. The accumulated materials must be dug out before the upper module can be installed for the next step of installation. Therefore, by arranging the low opening of the rabbet connection towards the inner wall of the prefabricated oil pool cylinder wall 12, the accumulation of materials can be reduced, and the installation of the upper module is more convenient. After the assembly of the prefabricated combined emergency oil pool is completed, in order to improve the overall sealing performance of the prefabricated combined emergency oil pool, cement slurry or waterproof cement mortar is coated at each rabbet connection for sealing connection, so as to complete the installation of the prefabricated combined emergency oil pool.

[0042] Further, in order to reduce the entry of foreign matters into the interior of the single prefabricated oil pool unit 1 from the ventilation pipe 21, a screen is arranged in the ventilation pipe 21. In other embodiments, a protective cover can also be arranged at the pipe opening of the ventilation pipe 21 to protect the ventilation pipe 21 and reduce the possibility of being damaged or blocked by external objects. During the preliminary manufacturing of the ventilation pipe 21, fiber-reinforced composite materials, stainless steel and other corrosion-resistant and high-temperature-resistant materials can be selected to improve the stability and durability of the ventilation pipe 21.

[0043] Further, referring to Figure 2, in order to facilitate the operator into the prefabricated oil pool unit 1 for maintenance, the prefabricated oil pool cylinder wall 12 is also provided with a ladder 123, in an embodiment of the application, the ladder 123 is composed of a plurality of steps, the steps are made of plastic steel, so as to improve the support strength of the steps. The width of a single step is 240mm, the vertical distance between adjacent steps is 360mm, the steps can be integrally formed with the prefabricated oil pool cylinder wall 12, or can be installed on the prefabricated oil pool cylinder wall 12 after the assembly of the whole prefabricated combined emergency oil pool is completed.

[0044] Referring to Figure 3 , in order to facilitate the subsequent operator to hoist the whole prefabricated combined emergency oil pool, the prefabricated oil pool top plate 124 is also provided with a lifting hook 22, in an embodiment of the application, the lifting hook 22 is provided with three, and the lifting hook 22 is made of Q235B round steel with high strength and corrosion resistance, so as to improve the structural strength of the lifting hook 22; the three lifting hooks 22 are arranged on the top of the prefabricated oil pool cylinder wall 12 in an equal division manner, so as to improve the lifting balance and stability during the hoisting of the whole prefabricated combined emergency oil pool. More specifically, the anchoring depth of a single lifting hook 22 is 20D, that is, 20 times the diameter of the prefabricated oil pool cover plate 22, so that the lifting hook 22 is firmly fixed in the whole prefabricated combined emergency oil pool, and the possibility of loosening or falling off of the lifting hook 22 during hoisting is reduced.

[0045] Referring to Figure 4 Each prefabricated oil pool unit 1 is prefabricated in the factory, before the prefabricated oil pool unit 1 construction, the engineering geological environment needs to be surveyed in the early construction stage, the bearing layer and the oil pool buried depth are determined according to the site rock and soil body conditions, the elevation, well depth, number of pipes, direction of pipes, pipe bottom elevation and pipeline angle of the emergency oil pool are counted, so as to plan the specific number of prefabricated oil pool units 1, and arrange reasonably. There are three common arrangement modes of prefabricated oil pool units 1, for example: a. five prefabricated oil pool units 1 are arranged in L shape, b. three prefabricated oil pool units 1 are arranged in straight line, c. three prefabricated oil pool units 1 are arranged in triangle, in other embodiments, the number of prefabricated oil pool units 1 can also be changed and arranged differently according to the actual construction demand.

[0046] In the description of the present application, it should be noted that the terms "upper", "lower", and the like are used for indicating the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] It should be noted that in the present application, relational terms such as "first" and "second" and the like are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0048] The above is only a specific embodiment of the present application, which enables those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. A one-piece prefabricated modular spill basin characterized in that, It comprises: An oil inlet connecting main pipe for connecting a transformer blowdown pipe network; A blowdown connecting main pipe for connecting a municipal drainage network; And at least one prefabricated oil pool unit (1) provided with an oil inlet pipe (121) and a blowdown pipe (122), the oil inlet pipe (121) is connected with the oil inlet connecting main pipe, the blowdown pipe (122) is connected with the blowdown connecting main pipe, the oil inlet pipe (121) is higher than the blowdown pipe (122), the blowdown pipe (122) extends into the prefabricated oil pool unit (1) and is arranged near the bottom of the prefabricated oil pool unit (1), and the prefabricated oil pool unit (1) is integrally prefabricated.

2. A one-piece prefabricated modular spillway according to claim 1, characterized in that The prefabricated oil pool unit (1) comprises: A prefabricated oil pool bottom plate (11); A prefabricated oil pool cylinder wall (12) arranged on the prefabricated oil pool bottom plate (11), the oil inlet pipe (121) and the blowdown pipe (122) are arranged on opposite sides of the prefabricated oil pool cylinder wall (12); A prefabricated oil pool top plate (124) arranged at one end of the prefabricated oil pool cylinder wall (12) away from the prefabricated oil pool bottom plate (11), and a manhole (125) is arranged on the prefabricated oil pool top plate (124); And a prefabricated oil pool cover plate (2) arranged at the manhole (125), and a ventilation pipe (21) is arranged on the prefabricated oil pool cover plate (2).

3. A one-piece prefabricated modular spillway according to claim 2, characterized in that The prefabricated oil pool unit (1) further comprises: A height adjusting module (3) connected with the prefabricated oil pool top plate (124) and the prefabricated oil pool cover plate (2) at two ends in the height direction, and the height adjusting module (3) is used for adjusting the distance between the prefabricated oil pool cover plate (2) and the prefabricated oil pool top plate.

4. A one-piece prefabricated modular spillway according to claim 3, wherein, The height adjusting module (3) comprises: A plurality of adjusting units (31) connected in sequence in the vertical direction, the lowermost adjusting unit (31) is connected with the prefabricated oil pool top plate (124), and the uppermost adjusting unit is connected with the prefabricated oil pool cover plate (2).

5. The prefabricated combined oil pool according to claim 4, wherein: The adjusting unit (31) is connected with the prefabricated oil pool top plate (124) and the prefabricated oil pool cover plate (2) through a tongue-and-groove connection.

6. The prefabricated combined oil pool according to claim 5, wherein: The tongue-and-groove connection is in the form of high and low openings, and the low opening of the tongue-and-groove connection is arranged close to the inner wall of the prefabricated oil pool unit (1).

7. The prefabricated combined oil pool according to claim 4, wherein: A sealing member (32) is arranged at the connection between the prefabricated oil pool cover plate (2) and the adjusting unit (31).

8. The prefabricated combined oil pool according to claim 7, wherein: The precast oil pool cylinder wall (12) is provided with a ladder (123) composed of several steps.

9. The integrally prefabricated combined emergency oil pool according to claim 2, characterized in that: The precast oil pool top plate (124) is provided with several lifting hooks (22).

10. The integrally prefabricated combined emergency oil pool according to claim 2, characterized in that: The ventilation pipe (21) is provided with a screen.

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