Rainwater collecting and discharging facility for large storage tank

Abstract

The utility model belongs to the technical field of rainwater and sewage collection and discharge, and particularly relates to a rainwater collection and discharge facility for a large storage tank, which comprises a water collection tank extending along the circumferential direction on the outer wall of the storage tank, a plurality of drainage pipes are arranged in the water collection tank, the two drainage pipes in one group are a clean rainwater drainage pipe and a dirty rainwater drainage pipe respectively, the inlet end of the dirty rainwater drainage pipe is flush with the bottom of the water collecting tank and protrudes out of the bottom of the water collecting tank, and the tail end of the clean rainwater drainage pipe and the tail end of the dirty rainwater drainage pipe are both arranged in corresponding storage bins on the rainwater storage vehicle. A valve is arranged on each drainage pipe; the storage tank solves the problem that rainwater on the top of the storage tank causes pollution to surrounding natural water resources and land resources, relieves drainage pressure of a fire dike and a flood discharge channel in a tank area in rainy seasons, reasonably and effectively utilizes clean rainwater on the top of the storage tank, and further solves the problem that the appearance of the storage tank is visually affected by dirty rainwater on the top of the storage tank.

Description

Technical Field

[0001] The utility model belongs to the technical field of rainwater and sewage collection and discharge, in particular to a rainwater collection and discharge facility for a large storage tank. Background Art

[0002] With the advancement of domestic industrialization, the scale of petrochemical plants is accelerating, the storage scale of raw materials and finished products is also increasing, and there are more and more large storage tanks. The specifications of storage tanks have also increased from 1x10 4 m3(diameter 30m), 2x10 4 m3(diameter 40m), 5x10 4 m3 (60m in diameter) 10x10 4 m3(diameter 80m), 15x10 4 m3 (100m in diameter), the area occupied by a single tank is getting larger and larger. Through feedback from the construction party and on-site visits by designers, it was found that the drainage pressure of the fire embankment and flood discharge channel in the tank area during the rainy season was very high, the clean rainwater on the tank top was not reasonably and effectively utilized, and the polluted rainwater was not discharged harmlessly, which caused pollution to the surrounding natural water resources and land resources; after the construction of the arch tank or the internal floating roof tank, when the rainy season comes, the rainwater will wash the dirt on the top of the tank and flow down along the tank wall, forming traces of rain marks or stains on the outer surface of the tank wall coated with the Sinopec milky white anti-corrosion coating; although these stains will not affect the safety of the tank, they will greatly affect the visual effect of the tank and increase the economic cost of future maintenance, so how to avoid these stains is particularly important; in addition, the collection and reuse of clean rainwater in the later stage has become an issue worthy of in-depth discussion. Utility Model Content

[0003] The purpose of the utility model is to provide a rainwater collection and discharge facility for a large storage tank to solve the problems raised in the above background technology.

[0004] The purpose of this utility model is to adopt the following technical solutions to achieve:

[0005] A rainwater collection and discharge facility for a large storage tank proposed in accordance with the utility model includes a water collecting trough extending circumferentially on the outer wall of the storage tank, wherein a plurality of drain pipes are arranged in the water collecting trough, wherein two drain pipes form a group, and the two drain pipes in a group are a clean rainwater drain pipe and a dirty rainwater drain pipe, respectively. The inlet end of the dirty rainwater drain pipe is flush with the bottom of the water collecting trough, and the inlet end of the clean rainwater drain pipe protrudes from the bottom of the water collecting trough. The ends of the clean rainwater drain pipe and the dirty rainwater drain pipe are both arranged in corresponding storage bins on a rainwater storage vehicle, and each drain pipe is provided with a valve, and the rainwater storage vehicle is provided with running wheels for rotation.

[0006] By means of the above technical solution, the utility model has the following advantages:

[0007] The utility model solves the problem of pollution of surrounding natural water resources and land resources caused by rainwater on the oil tank top, alleviates the drainage pressure of fire dikes and flood discharge channels in the tank area during the rainy season, and the clean rainwater on the tank top is also reasonably and effectively utilized, and the visual impact of the storage tank appearance caused by the dirty rainwater on the tank top is solved.

[0008] Furthermore, a plurality of water quality sensors are provided in the water collection tank, and the water quality sensors are arranged on the upper part of the side wall of the water collection tank.

[0009] Advantages: The water quality sensor can detect the quality of rainwater in the sump.

[0010] Furthermore, a first valve is provided on the clean rainwater drainage pipe, and a second valve is provided on the dirty rainwater drainage pipe. The first valve and the second valve are electrically connected to corresponding water quality sensors, respectively.

[0011] Advantages: Through electrical connection, the water quality sensor can directly send an open or close signal to the first valve or the second valve, automatically opening and closing the valve to improve efficiency.

[0012] Furthermore, the rainwater storage vehicle is provided with a clean rainwater storage bin and a dirty rainwater storage bin, and the ends of the clean rainwater drainage pipe and the dirty rainwater drainage pipe are respectively arranged in the clean rainwater storage bin and the dirty rainwater storage bin.

[0013] Advantages: Clean rainwater and dirty rainwater are collected separately to prevent dirty rainwater from polluting clean rainwater.

[0014] Furthermore, a plurality of arc-shaped water collecting grooves are arranged on the outer wall of the storage tank, and the aforementioned water collecting grooves are spliced ​​into a ring shape along the circumferential direction to match the outer wall of the storage tank; and a group of drainage pipes are arranged in each water collecting groove.

[0015] Advantages: Long-term outdoor work will cause the water collection tank to corrode. Setting up multiple spliced ​​water collection tanks facilitates the replacement of single or multiple water collection tanks.

[0016] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a structural schematic diagram of a rainwater collection and discharge facility for a large storage tank.

[0018] Figure 2The utility model is a top view of a rainwater collection and discharge facility for a large storage tank.

[0019] [Reference Signs]

[0020] 1. Water collection trough; 2. Clean rainwater drainage pipe; 201. First valve; 3. Dirty rainwater drainage pipe; 301. Second valve; 4. Rainwater storage vehicle; 401. Water quality sensor; 5. Storage tank; 6. Clean rainwater storage bin; 7. Dirty rainwater storage bin; 8. Traveling wheels. DETAILED DESCRIPTION

[0021] The features and exemplary embodiments of various aspects of the utility model will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without the need for some of these specific details. The following description of the embodiment is only to provide a better understanding of the utility model by showing an example of the utility model. In the accompanying drawings and the following description, at least part of the known and prior art is not shown to avoid unnecessary ambiguity to the utility model; and, for clarity, the size and shape of the part may be exaggerated. The features or characteristics described below can be combined in one or more embodiments in any suitable manner. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or quantity.

[0022] The utility model provides Figure 1 and Figure 2 A rainwater collection and discharge facility for a large storage tank is shown, including a water collection trough 1 extending circumferentially on the outer wall of the storage tank 5. The water collection trough 1 can prevent rainwater from carrying dirt on the top of the storage tank 5 downward along the tank wall, forming rain marks or stains on the outer surface of the storage tank 5, affecting the visual effect of the storage tank 5 and increasing the economic cost of future maintenance; a plurality of drainage pipes are arranged in the water collection trough 1, two of which form a group, and the two drainage pipes in a group are a clean rainwater drainage pipe 2 and a dirty rainwater drainage pipe 3, respectively. The inlet end of the dirty rainwater drainage pipe 3 is flush with the bottom of the water collection trough 1, and the inlet end of the clean rainwater drainage pipe 2 protrudes from the bottom of the water collection trough 1, and the distance between the clean rainwater drainage pipe 2 and the bottom of the water collection trough 1 is H. Of course, H should be less than the distance between the top and the bottom of the water collection trough 1. The clean rainwater drainage pipe 2 protrudes from the bottom of the water collection trough 1, which can effectively prevent impurities at the bottom of the water collection trough 1 from directly entering the clean rainwater drainage pipe 2. The dirty rainwater and the clean rainwater are discharged separately, which is convenient for the reuse of the clean rainwater. Furthermore, a water quality sensor 401 is provided on the side wall of the water collection tank 1, and the water quality sensor 401 is used to detect the water quality in the water collection tank 1. Specifically, the water quality sensor 401 should be set at the upper part of the side wall of the water collection tank as much as possible to prevent the bottom dirt from affecting its sensitivity.

[0023] The discharge facility also includes a number of rainwater storage vehicles 4, each set of drainage pipes corresponds to a rainwater storage vehicle 4, and a clean rainwater storage bin 6 and a dirty rainwater storage bin 7 are provided in the rainwater storage vehicle 4. The end of the clean rainwater drainage pipe 2 is connected to the clean rainwater storage bin 6, and the end of the dirty rainwater drainage pipe 3 is connected to the dirty rainwater storage bin 7. The clean rainwater drainage pipe 2 and the dirty rainwater drainage pipe 3 are respectively provided with a first valve 201 and a second valve 301, and the first valve 201 and the second valve 301 are respectively electrically connected to the corresponding water quality sensor 401. Through the electrical connection, the water quality sensor 401 can directly send an open or close signal to the first valve 201 or the second valve 301, and automatically open and close the valve to improve efficiency. Furthermore, the rainwater storage vehicle 4 is also rotatably provided with running wheels 8. The setting of the running wheels 8 makes the transportation of the rainwater storage vehicle 4 more convenient.

[0024] In this embodiment, in order to ensure the strength of the drain pipe, the drain pipe adopts a structure combining a horizontal section and a vertical section. Of course, in other embodiments of the utility model, the structure of the drain pipe can be determined according to specific circumstances.

[0025] In the present invention, a plurality of arc-shaped water collecting tanks 1 are provided, and a plurality of water collecting tanks distributed along the circumferential direction are spliced ​​into a ring and then provided on the outer wall of the storage tank 5. The advantage of such a design is that the water collecting tank 1 will be corroded by long-term outdoor work. By adopting a plurality of spliced ​​water collecting tanks 1, it is easy to realize the independent replacement of a single water collecting tank 1, thereby reducing the maintenance cost. Of course, in other embodiments of the present invention, a ring-shaped water collecting tank can be directly provided on the outer wall of the storage tank.

[0026] A rainwater collection and discharge facility for large storage tanks operates as follows:

[0027] When it starts to rain, the first valve 201 is closed and the second valve 301 is opened. The rainwater at this time is relatively dirty and can flow into the dirty rainwater storage bin 7 of the rainwater storage vehicle 4 through the dirty rainwater drainage pipe 3; after the rain has been falling for a period of time, the dirt on the top of the storage tank 5 is washed away. When the rainwater quality is qualified, the water quality sensor 401 will activate the electrical signal, close the second valve 301, and open the first valve 201 to increase the liquid level in the sump 1. When the liquid level rises to H, the rainwater enters the clean rainwater drainage pipe 2 and flows into the clean rainwater storage bin 6 of the rainwater storage vehicle 4; after the rain stops, the first valve 201 is closed and the second valve 301 is opened to allow the remaining rainwater in the sump 1 to flow into the dirty rainwater storage bin 7; then the collected dirty rainwater and clean rainwater are transported to places in need through the walking wheels 8 arranged on both sides of the rainwater storage vehicle 4.

[0028] The above is only a preferred embodiment of the present invention. Any technician familiar with the profession, without departing from the scope of the technical solution of the present invention, makes any simple modifications, equivalent changes and modifications to the above embodiments based on the technical essence of the present invention, which still fall within the scope of the technical solution of the present invention.

Claims

1. A rainwater collection and discharge facility for large storage tanks, characterized in that: The invention comprises a water collecting trough (1) extending in the circumferential direction on the outer wall of a storage tank (5), wherein a plurality of drainage pipes are arranged in the water collecting trough (1), wherein two drainage pipes form a group, wherein the two drainage pipes in a group are a clean rainwater drainage pipe (2) and a dirty rainwater drainage pipe (3), respectively, wherein the inlet end of the dirty rainwater drainage pipe (3) is flush with the bottom of the water collecting trough (1), and the inlet end of the clean rainwater drainage pipe (2) protrudes from the bottom of the water collecting trough (1), and the ends of the clean rainwater drainage pipe and the dirty rainwater drainage pipe are both arranged in corresponding storage bins on a rainwater storage vehicle (4), and each drainage pipe is provided with a valve, and the rainwater storage vehicle (4) is provided with a running wheel (8) for rotation.

2. A rainwater collection and discharge facility for a large storage tank according to claim 1, characterized in that: A plurality of water quality sensors (401) are arranged in the water collection tank (1), and the water quality sensors (401) are arranged on the upper part of the side wall of the water collection tank (1).

3. A rainwater collection and discharge facility for a large storage tank according to claim 2, characterized in that: The clean rainwater drainage pipe (2) is provided with a first valve (201), and the dirty rainwater drainage pipe (3) is provided with a second valve (301). The first valve (201) and the second valve (301) are electrically connected to corresponding water quality sensors (401), respectively.

4. A rainwater collection and discharge facility for a large storage tank according to claim 1, characterized in that: The rainwater storage vehicle (4) is provided with a clean rainwater storage bin (6) and a dirty rainwater storage bin (7), and the ends of the clean rainwater drainage pipe (2) and the dirty rainwater drainage pipe (3) are respectively arranged in the clean rainwater storage bin (6) and the dirty rainwater storage bin (7).

5. A rainwater collection and discharge facility for a large storage tank according to claim 1, characterized in that: A plurality of arc-shaped water collecting grooves (1) are arranged on the outer wall of the storage tank (5), and the water collecting grooves (1) are spliced ​​in the circumferential direction to form a ring shape that matches the outer wall of the storage tank (5); each water collecting groove (1) is provided with a group of drainage pipes.

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