Water taking pump arrangement structure for drawing water from reservoir of pumped storage power station

Abstract

The utility model relates to a water intake pump arrangement structure for drawing water from a pumped storage power station reservoir, which utilizes the characteristic that the pumped storage power station reservoir is provided with an existing structure platform, and comprises a water pump foundation, a submersible pump and a pump set water outlet pipe, the water pump foundation is arranged on the existing structure platform, and the submersible pump is arranged on the existing structure platform in the vertical direction; the water pump foundation is higher than the platform; the submersible pump is arranged on the water pump foundation and provided with a water outlet; the submersible pump group water outlet pipe extends along the surface of the platform and the slope surface of the pumped storage power station reservoir, one end of the pump group water outlet pipe is directly communicated with a water outlet of the submersible pump, and the other end extends to the road and is laid to each water consumption point along the road; the water taking pump arrangement structure is arranged on an existing structure platform of a water pumping and energy storage power station reservoir, so that a water taking structure does not need to be independently arranged, the internal space of a building is not occupied, and meanwhile later-stage overhaul and maintenance of a pump set are facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of pumped storage power stations, and in particular to a water intake pump arrangement structure for drawing water from a reservoir of a pumped storage power station. Background Art

[0002] In a pumped-storage power station (hereinafter referred to as "pumped-storage power station") or other water diversion projects, the upper and lower reservoirs generally need to draw water from the corresponding reservoirs for firefighting and domestic water. There are currently three mainstream water intake schemes: one is to use a submersible pump to draw water from a well inside the lower reservoir opening and closing machine room; the second is shore-based water intake, that is, setting up a water intake pump room and water intake well on the shore; the third is mobile water intake, that is, setting up a cable car or floating boat to take water. However, the water level of the pumped-storage power station project fluctuates greatly in the short term. For the above three water intake methods, either the civil engineering structure is complex, the construction is difficult, and the investment is high; or the operation is complex and the maintenance cost is high. Utility Model Content

[0003] An embodiment of the present application provides a water intake pump arrangement structure for drawing water from a pumped-storage power station reservoir. The water intake pump arrangement structure is arranged on an existing structural platform of the pumped-storage power station reservoir. This does not require a separate water intake structure, does not occupy the internal space of the building, and is also conducive to the subsequent inspection and maintenance of the pump group.

[0004] The water intake pump arrangement structure provided in the embodiment of the present application includes:

[0005] A water pump foundation, which is arranged on the existing structural platform (such as the platform between the inlet and outlet diffuser sections), and in the vertical direction, the height of the water pump foundation is higher than the platform;

[0006] A submersible pump, the submersible pump is arranged on the water pump base, and the submersible pump has a water outlet;

[0007] A pump group water outlet pipe extends along the surface of the platform and the slope of the pumped storage power station reservoir. One end of the pump group water outlet pipe is directly connected to the water outlet of the submersible pump, and the other end extends to the road and is laid along the road to various water use points.

[0008] In addition, the water intake pump arrangement structure provided in the embodiment of the present application may also have the following additional technical features:

[0009] In an optional solution, the existing structural platform and the submersible pump are located below the dead water level of the pumped storage power station reservoir;

[0010] The water level of the dead water level is defined as H1, the top height of the existing structural platform is defined as H2, and the overheating prevention level of the submersible pump is defined as H3, then H1-H2>H3-H2.

[0011] In an optional solution, the number of the submersible pumps is at least two groups, and at least two groups of the submersible pumps are connected to the water outlet pipe of the pump group through independent water outlet pipes, respectively. The independent water outlet pipes are provided with a check valve, a pressure gauge and a maintenance valve.

[0012] In an optional solution, the pump group water outlet pipe is made of stainless steel seamless pipe, and the pump group water outlet pipe is laid openly on the surface of the platform close to the ground, and is laid concealed on the slope of the pumped storage power station reservoir.

[0013] In an optional solution, the existing structural platform further includes an inspection step, and the submersible pump is horizontally installed on the platform near the inspection step.

[0014] In an optional solution, the water intake pump arrangement structure also includes a submersible pump control cabinet, which is electrically connected to the submersible pump and is used to control the working state of the submersible pump. The submersible pump control cabinet is arranged in a starter and shut-down machine room adjacent to the pumped-storage power station.

[0015] The beneficial effects of the embodiments of the present application are:

[0016] The present application uses the existing structural platform of the pumped storage power station reservoir for arrangement and water extraction, which effectively solves the problem of cumbersome and inconvenient water extraction in the pumped storage power station, and fully utilizes the advantages of the existing structural platform of the power station and the good water quality of the reservoir. It does not need to build a separate pump room or occupy the internal space of the start and shut-down room, avoiding conflicts with other specialties, greatly saving construction costs and reducing construction difficulties. The submersible pump is arranged on the existing structural platform, and the operating environment is good, which can extend the service life of the pump; in addition, the frequent changes in the reservoir water level can be used to facilitate operation and maintenance.

[0017] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the planar layout of the water intake pump arrangement structure provided in the present application in a specific embodiment;

[0019] Figure 2 for Figure 1 A schematic cross-sectional view of the water intake pump arrangement structure at AA;

[0020] Figure 3 Schematic diagram of the scope of the existing structural platform provided for this application.

[0021] Figure numerals: pumped storage power station reservoir 1, existing structure platform 2, water pump foundation 3, submersible pump 5, pump group outlet pipe 6, road 7, independent outlet pipeline 8, maintenance step 9.

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. DETAILED DESCRIPTION

[0023] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0024] It should be clear that 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 ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0025] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0026] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0027] It should be noted that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described at the angles shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.

[0028] like Figure 1-3 As shown, an embodiment of the present application provides a water intake pump arrangement structure for drawing water from a pumped-storage power station reservoir. The water intake pump arrangement structure is arranged on an existing structural platform 2 of a pumped-storage power station reservoir 1. This does not require a separate water intake structure and does not occupy the internal space of the building. It is also beneficial to the later inspection and maintenance of the pump group, and has convenient arrangement, stable water intake and simple maintenance.

[0029] Specifically, Figure 1-3As shown, the water intake pump arrangement structure includes a water pump foundation 3, a submersible pump 5 and a pump group outlet pipe 6, wherein the water pump foundation 3 is arranged on the existing structural platform 2, and in the vertical direction, the height of the water pump foundation 3 is higher than the platform 2, and the water pump foundation 3 is cast as a concrete structure; the submersible pump 5 is arranged on the water pump foundation 3, and the submersible pump 5 has a water outlet; the pump group outlet pipe 6 extends along the surface of the platform 4 and the slope of the pumped storage power station reservoir 1, one end of the pump group outlet pipe 6 is directly connected to the water outlet of the submersible pump 5, and the other end extends to the road 7 and is laid along the road 7 to various water use points.

[0030] It should be noted that the existing structural platform 2 mainly serves the main pumped storage project. The platform is used for layout and water drawing, which better solves the problem of cumbersome and inconvenient water drawing in the pumped storage power station. It makes full use of the space of the existing structural platform 2 of the power station and the advantages of good water quality of the reservoir. There is no need to build a separate pump room or occupy the internal space of the start and shut-down room, avoiding conflicts with other specialties, greatly saving construction costs and reducing construction difficulties. The submersible pump 5 is arranged on the existing structural platform 2, and the operating environment is good, which can extend the service life of the pump; in addition, the frequent changes in the reservoir water level can be used to facilitate operation and maintenance.

[0031] like Figure 2 As shown, in a specific embodiment, the existing structure platform 2 and the submersible pump 5 are located below the dead water level of the pumped storage power station reservoir 1; if the water level height of the dead water level is defined as H1, the top height of the existing structure platform 2 is H2, and the overheating prevention water level of the submersible pump 5 is H3, then H1-H2>H3-H2.

[0032] Generally speaking, the water level height H1 of the dead water level is quantitative, and the overheating protection level H3 of the submersible pump 5 can be preset according to the types of different submersible pumps 5, and thus adjusted. The top height H2 of the existing structural platform 2 can also be adjusted according to the water level height H1 of the dead water level, so that the submersible pump 5 can dissipate heat well and prevent the submersible pump 5 from being affected by overheating or being damaged.

[0033] like Figure 1-2 As shown, in a specific embodiment, the number of submersible pumps 5 is at least two groups, and at least two groups of submersible pumps 5 are connected to the pump group outlet pipe 6 through independent outlet pipes 8, and the independent outlet pipes 8 are provided with check valves, pressure gauges and inspection valves. In addition, the pump group outlet pipe 6 adopts a stainless steel seamless steel pipe (06Cr19Ni10), and the pump group outlet pipe 6 is laid openly on the surface of the platform and concealed on the slope of the pumped storage power station reservoir 1. It should be noted that the number of submersible pumps 5 can be adjusted according to the actual water demand, so this article does not specifically limit its number.

[0034] like Figure 1 and Figure 3As shown, in a specific embodiment, the existing structural platform 2 also includes a maintenance step 9, and the submersible pump 5 is horizontally installed on the platform near the maintenance step 9. In combination with the characteristics of frequent changes in the water level of the pumped storage project, the position close to the maintenance step 9 can be more convenient for the submersible pump 5 and the pump group outlet pipe 6 to be connected for maintenance when the water level of the reservoir is low. In addition, the water-drawing arrangement structure also includes a submersible pump control cabinet, which is electrically connected to the submersible pump 5 and is used to control the working state of the submersible pump 5. The submersible pump control cabinet is arranged in the adjacent start-stop machine room of the pumped storage power station. In addition, the submersible pump control cabinet can also be used to monitor the pressure gauge, etc., which will not be elaborated in this article.

[0035] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A water intake pump arrangement structure for drawing water from a pumped storage power station reservoir, wherein the pumped storage power station reservoir has an existing structural platform, characterized in that: The water intake pump arrangement structure comprises: A water pump foundation, wherein the water pump foundation is arranged on the existing structural platform, and in the vertical direction, the height of the water pump foundation is higher than the platform; A submersible pump, the submersible pump is arranged on the water pump base, and the submersible pump has a water outlet; A pump group water outlet pipe extends along the surface of the platform and the slope of the pumped storage power station reservoir. One end of the pump group water outlet pipe is directly connected to the water outlet of the submersible pump, and the other end extends to the road and is laid along the road to various water use points.

2. The water intake pump arrangement structure for drawing water from a pumped storage power station reservoir according to claim 1, characterized in that: The existing structural platform and the submersible pump are located below the dead water level of the pumped storage power station reservoir; The water level of the dead water level is defined as H1, the top height of the existing structural platform is defined as H2, and the overheating prevention level of the submersible pump is defined as H3, then H1-H2>H3-H2.

3. The water intake pump arrangement structure for drawing water from a pumped storage power station reservoir according to claim 1 or 2, characterized in that: The number of the submersible pumps is at least two groups, and at least two groups of the submersible pumps are connected to the water outlet pipe of the pump group through independent water outlet pipes respectively. The independent water outlet pipes are provided with a check valve, a pressure gauge and a maintenance valve.

4. The water intake pump arrangement structure for drawing water from a pumped storage power station reservoir according to claim 3, characterized in that: The pump group water outlet pipe is made of stainless steel seamless steel pipe. The pump group water outlet pipe is laid openly on the surface of the platform close to the ground and is laid concealed on the slope of the pumped storage power station reservoir.

5. The water intake pump arrangement structure for drawing water from a pumped storage power station reservoir according to claim 4, characterized in that: The existing structural platform also includes an inspection step, and the submersible pump is horizontally installed on the platform near the inspection step.

6. The water intake pump arrangement structure for drawing water from a pumped storage power station reservoir according to claim 4 or 5, characterized in that: It also includes a submersible pump control cabinet, which is electrically connected to the submersible pump and is used to control the working state of the submersible pump. The submersible pump control cabinet is arranged in a starter and shut-off machine room adjacent to the pumped-storage power station.

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