Rainwater collection device and rainwater treatment system

Abstract

The utility model discloses a rainwater collection device and a rainwater treatment system, the rainwater collection device comprises a collection pool, a collection pipeline and a drainage assembly, the drainage end of the collection pipeline is communicated with the collection pool, the drainage assembly comprises a self-priming pump, a water pumping pipeline, a drainage pipeline and a water supplementing mechanism, one end of the water pumping pipeline is located in the collection pool, and the other end of the water pumping pipeline is located in the collection pool; the other end of the water pumping pipeline is communicated with a water inlet of the self-priming pump, a check valve is arranged in the water pumping pipeline, the check valve is in one-way conduction in the direction close to the self-priming pump, the drainage pipeline is communicated with a water outlet of the self-priming pump, the water supplementing mechanism comprises a water supplementing pipeline and a water supplementing electromagnetic valve, and the water supplementing pipeline is used for supplementing water to a pump cavity of the self-priming pump; the water supplementing electromagnetic valve is used for controlling on-off of the water supplementing pipeline. According to the rainwater collecting device, the automation level of the drainage assembly can be improved, and meanwhile the water supplementing efficiency of the self-priming pump can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a rainwater collection device and a rainwater treatment system. Background Art

[0002] During the copper smelting process, a small amount of dust may escape from the production equipment. To ensure environmental protection, dust removal is typically performed by sweepers and manual labor. Rainwater collection trenches and initial rainwater pools are installed in areas where pollution may occur. On rainy days, initial rainwater from the field is collected through the rainwater collection trenches and transferred to the initial rainwater collection pools. A booster pump then pipes the contaminated rainwater from the pools to a purification device for treatment. However, the drainage devices used in related technologies have a low degree of automation and require a high level of labor. Furthermore, the booster pumps have poor water replenishment efficiency, which directly affects drainage efficiency. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present invention is to provide a rainwater collection device that can improve the automation level of the drainage component and the water replenishment efficiency of the self-priming pump.

[0004] The utility model also provides a rainwater treatment system with the rainwater collection device.

[0005] According to the first embodiment of the present invention, the rainwater collection device includes: a collection tank; a collection pipeline, the drainage end of the collection pipeline is connected to the collection tank; a drainage component, including a self-priming pump, a pumping pipeline, a drainage pipeline and a water replenishment mechanism, one end of the pumping pipeline is located in the collection tank, and the other end of the pumping pipeline is connected to the water inlet of the self-priming pump. A check valve is provided in the pumping pipeline, and the check valve is unidirectionally conductive in the direction toward the self-priming pump. The drainage pipeline is connected to the water outlet of the self-priming pump. The water replenishment mechanism includes a water replenishment pipeline and a water replenishment solenoid valve. The water replenishment pipeline is used to replenish water to the pump chamber of the self-priming pump, and the water replenishment solenoid valve is used to control the on-off of the water replenishment pipeline.

[0006] According to the rainwater collection device of the first embodiment of the present invention, the water supply solenoid valve controls the on / off state of the water supply pipeline, thereby controlling the water supply pipeline to supply water to the pump chamber of the self-priming pump and stopping water supply. In other words, the water supply solenoid valve can realize automatic water supply of the self-priming pump, which is beneficial to improving the automation level of the drainage component. In addition, the check valve is closed when the liquid in the pumping pipeline flows from the water outlet to the water inlet. Therefore, when the water supply mechanism supplies water to the pump chamber, the liquid in the pump chamber is prevented from flowing through the check valve into the collection tank and affecting the water supply efficiency, thereby effectively improving the water supply efficiency of the self-priming pump.

[0007] According to some embodiments of the present invention, a water supply port communicating with the pump cavity is formed on the self-priming pump, and a water outlet end of the water supply pipeline is communicated with the water supply port.

[0008] According to some embodiments of the present invention, a water supply joint is provided on the drainage pipeline, and the water outlet end of the water supply pipeline is connected to the drainage pipeline through the water supply joint.

[0009] According to some embodiments of the present invention, the distance between the water supply joint and the water outlet of the self-priming pump ranges from 8 cm to 15 cm.

[0010] According to some embodiments of the present utility model, the water pumping pipeline includes a first pipe section and a second pipe section, the first pipe section extends in the up and down directions, the lower end of the first pipe section constitutes the water inlet end of the water pumping pipeline, the second pipe section extends in the horizontal direction, one end of the second pipe section is connected to the upper end of the first pipe section, and the other end of the second pipe section is connected to the water inlet of the self-priming pump, and the check valve is arranged in the second pipe section.

[0011] According to some embodiments of the present invention, the distance between the water inlet end of the pumping pipeline and the bottom of the collection tank is not less than 80 cm.

[0012] According to some embodiments of the present invention, the drainage end of the collection pipeline is located above the upper limit of the liquid level of the collection tank; and / or the collection pipeline is a groove formed on the ground.

[0013] According to some embodiments of the present invention, an anti-overflow component is further included, which is connected to the collection tank and is used to discharge the liquid in the collection tank that exceeds the upper limit of the liquid level.

[0014] According to some embodiments of the present invention, the overflow prevention component includes: an overflow prevention pipeline and an overflow prevention solenoid valve, a collection solenoid valve for controlling the on-off of the collection pipeline is provided in the collection pipeline, the water inlet end of the overflow prevention pipeline is connected to the collection pipeline and is located on the upstream side of the collection solenoid valve, and the overflow prevention solenoid valve is provided in the overflow prevention pipeline to control the on-off of the overflow prevention pipeline.

[0015] According to some embodiments of the present invention, a liquid level sensor is provided in the collection tank, and the liquid level sensor is electrically connected to the anti-overflow solenoid valve.

[0016] According to the second embodiment of the present invention, the rainwater treatment system includes: the above-mentioned rainwater collection device.

[0017] According to the rainwater treatment system of the second embodiment of the present invention, the water supply solenoid valve controls the on-off of the water supply pipeline, which can control the water supply pipeline to supply water to the pump chamber of the self-priming pump and stop supplying water. That is, the water supply solenoid valve can realize automatic water supply of the self-priming pump, which is conducive to improving the automation level of the drainage component. In addition, the check valve is closed when the liquid in the pumping pipeline flows from the water outlet to the water inlet. Therefore, when the water supply mechanism supplies water to the pump chamber, the liquid in the pump chamber is prevented from flowing through the check valve toward the collection tank and affecting the water supply efficiency, thereby effectively improving the water supply efficiency of the self-priming pump.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is a schematic diagram of a rainwater collection device according to an embodiment of the present utility model;

[0021] Figure 2 Schematic diagram of a rainwater collection device according to another embodiment of the present invention.

[0022] Reference numerals:

[0023] Rainwater collection device 100; collection tank 1; collection pipeline 2; drainage assembly 3; self-priming pump 31; water inlet 311; water outlet 312; water supply port 313; pumping pipeline 32; first pipe section 321; second pipe section 322; drainage pipeline 33; water supply mechanism 34; water supply pipeline 341; water supply solenoid valve 342; check valve 35; overflow prevention assembly 4; overflow prevention pipeline 41; overflow prevention solenoid valve 42; collection solenoid valve 5; liquid level sensor 6. DETAILED DESCRIPTION

[0024] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0025] The following describes a rainwater collection device 100 according to an embodiment of the first aspect of the present invention with reference to the accompanying drawings.

[0026] like Figure 1 and Figure 2As shown, according to the rainwater collection device 100 of the first embodiment of the present invention, it includes: a collection pool 1, a collection pipe 2 and a drainage component 3. The drainage end of the collection pipe 2 is connected to the collection pool 1, so that a connecting flow path can be formed between the collection pipe 2 and the collection pool 1, so that rainwater can enter the collection pool 1 through the collection pipe 2. The drainage component 3 includes a self-priming pump 31, a water pumping pipe 32, a drainage pipe 33 and a water replenishment mechanism 34. One end of the water pumping pipe 32 is located at the collection pool 1. In the pool 1, the other end of the water pumping pipe 32 is connected to the water inlet 311 of the self-priming pump 31. A check valve 35 is provided in the water pumping pipe 32. The check valve 35 is unidirectionally conductive in the direction toward the self-priming pump 31. The drainage pipe 33 is connected to the water outlet 312 of the self-priming pump 31. The water replenishment mechanism 34 includes a water replenishment pipe 341 and a water replenishment solenoid valve 342. The water replenishment pipe 341 is used to replenish water to the pump chamber of the self-priming pump 31, and the water replenishment solenoid valve 342 is used to control the on-off of the water replenishment pipe 341.

[0027] That is, the self-priming pump 31 can be connected to the collection tank 1 through the water pumping pipe 32, and the self-priming pump 31 is connected between the water pumping pipe 32 and the drainage pipe 33, so that a connected flow path can be formed in the water pumping pipe 32, the self-priming pump 31 and the drainage pipe 33, and the check valve 35 is only opened when the liquid in the water pumping pipe 32 flows from the water inlet end to the water outlet end. When the self-priming pump 31 is running, the liquid in the collection tank 1 can be discharged in sequence through the water pumping pipe 32, the self-priming pump 31 and the drainage pipe 33 to realize the discharge operation of the liquid in the collection tank 1. Among them, before the self-priming pump 31 is pumping, it is necessary to ensure that the pump chamber is full of liquid. The water supply solenoid valve 342 is used to control the on-off of the water supply pipe 341, and the water supply pipe 341 can be controlled to supply water to the pump chamber of the self-priming pump 31 or stop supplying water. That is, the self-priming pump 31 can be automatically replenished with water through the water supply solenoid valve 342, which is conducive to improving the automation level of the drainage component 3. In addition, the check valve 35 is cut off when the liquid in the water pumping pipe 32 flows from the water outlet end toward the water inlet end, thereby preventing the liquid in the pump chamber from flowing through the check valve 35 toward the collection tank 1 and affecting the water replenishment efficiency when the water replenishment mechanism 34 replenishes water into the pump chamber, thereby better improving the water replenishment efficiency of the self-priming pump 31.

[0028] Specifically, the end of the water supply pipeline 341 away from the self-priming pump 31 can be connected to a water source such as a water supply pipeline of the water supply equipment in the factory area, a stable non-drinking water pipe, etc. Therefore, when the water supply solenoid valve 342 is opened, the water supply pipeline 341 is in a conductive state, and the water from the water source can enter the pump cavity of the self-priming pump 31 through the water supply pipeline 341, that is, the self-priming pump 31 is in a water supply state at this time; when the water supply solenoid valve 342 is closed, the water supply pipeline 341 is in a cut-off state, thereby cutting off the water from the water source from entering the pump cavity of the self-priming pump 31 through the water supply pipeline 341, that is, the self-priming pump 31 is in a stopped water supply state at this time.

[0029] According to the rainwater collection device 100 of the embodiment of the present invention, the water supply solenoid valve 342 controls the on / off state of the water supply pipeline 341, thereby controlling the water supply pipeline 341 to supply water to the pump chamber of the self-priming pump 31 and to stop supplying water. In other words, the water supply solenoid valve 342 can realize automatic water supply of the self-priming pump 31, which is beneficial to improving the automation level of the drainage assembly 3. In addition, the check valve 35 is closed when the liquid in the pumping pipeline 32 flows from the water outlet to the water inlet. Therefore, when the water supply mechanism 34 supplies water to the pump chamber, the liquid in the pump chamber is prevented from flowing through the check valve 35 toward the collection tank 1 and affecting the water supply efficiency, thereby effectively improving the water supply efficiency of the self-priming pump 31.

[0030] In some embodiments, the water supply pipeline 341 is a 304 stainless steel metal hose with a length of 300 mm to 400 mm, and the check valve is a 304 stainless steel check valve 35 .

[0031] According to some embodiments of the present invention, a water replenishment port 313 communicating with the pump cavity is formed on the self-priming pump 31, and the water outlet of the water replenishment pipe 341 is connected to the water replenishment port 313. In other words, the water outlet of the water replenishment pipe 341 is connected to the pump cavity of the self-priming pump 31 through the water replenishment port 313, so that water in the water replenishment pipe 341 can enter the pump cavity of the self-priming pump 31 through the water replenishment port 313, thereby enabling the water replenishment pipe 341 to replenish the self-priming pump 31 when the water replenishment solenoid valve 342 is in a state of conducting the water replenishment pipe 341.

[0032] According to some embodiments of the present invention, a water supply joint is provided on the drainage pipe 33, and the water outlet end of the water supply pipe 341 is connected to the drainage pipe 33 through the water supply joint. That is, the water outlet end of the water supply pipe 341 is connected to the drainage pipe 33 through the water supply joint provided on the drainage pipe 33, and the drainage pipe 33 is connected to the water outlet 312 of the self-priming pump 31, so that a connecting flow path can be formed between the water supply pipe 341, the portion of the drainage pipe 33 located between the water supply joint and the water outlet 312 of the self-priming pump 31, and the pump chamber of the self-priming pump 31. Therefore, when the water supply solenoid valve 342 is connected to the water supply pipe 341, the water supply pipe 341 is connected to the water supply pipe 341. The water in 341 can enter the pump cavity of the self-priming pump 31 for water replenishment through the portion of the drainage pipe 33 located between the water replenishment joint and the water outlet 312 of the self-priming pump 31. That is, the portion of the drainage pipe 33 located between the water replenishment joint and the water outlet 312 of the self-priming pump 31 can be used for both drainage and water replenishment, thereby realizing the reuse of the portion of the drainage pipe 33 located between the water replenishment joint and the water outlet 312 of the self-priming pump 31, which is beneficial to saving the cost of the water replenishment pipe 341. In a specific embodiment, the water replenishment joint is a 304 stainless steel flexible joint, which is beneficial to extending the service life of the water replenishment joint and reducing the difficulty of connecting the water replenishment joint to the water replenishment pipe 341.

[0033] According to some embodiments of the present invention, the distance between the water supply joint and the water outlet 312 of the self-priming pump 31 ranges from 8 cm to 15 cm. The closer the distance between the water supply joint and the water outlet 312 of the self-priming pump 31 is, the shorter the path for the water in the water supply pipe 341 to enter the self-priming pump 31 through the portion of the drainage pipe 33 located between the water supply joint and the water outlet 312 of the self-priming pump 31 is, and the higher the water supply efficiency is. However, the smaller the installation space between the water supply joint and the self-priming pump 31 is, the more difficult it is to install the water supply joint and the water supply mechanism 34. Conversely, the farther the distance between the water supply joint and the water outlet 312 of the self-priming pump 31 is, the longer the path for the water in the water supply pipe 341 to enter the self-priming pump 31 through the portion of the drainage pipe 33 located between the water supply joint and the water outlet 312 of the self-priming pump 31 is, the lower the water supply efficiency is, the larger the installation space between the water supply joint and the self-priming pump 31 is, and the easier it is to install the water supply joint and the water supply mechanism 34. Therefore, by setting the distance between the water supply joint and the water outlet 312 of the self-priming pump 31 within the range of 8 cmn to 15 cm, it is possible to avoid the water supply joint and the water outlet 312 of the self-priming pump 31 being too close to increase the installation difficulty of the water supply joint and the water supply mechanism 34, and at the same time, it is possible to avoid the water supply joint and the water outlet 312 of the self-priming pump 31 being too far away from each other to reduce the water supply efficiency, thereby improving the water supply efficiency into the pump cavity while reducing the installation difficulty of the water supply joint and the water supply mechanism 34. Among them, the distance between the water supply joint and the water outlet 312 of the self-priming pump 31 can be 8 cm, 9 cm, 10 cm, 11 cm, 12 cm, 13 cm, 14 cm, 15 cm, etc., and no specific restrictions are made here.

[0034] According to some embodiments of the present invention, the water pumping pipeline 32 includes a first pipe section 321 and a second pipe section 322. The first pipe section 321 extends in the up and down directions. The lower end of the first pipe section 321 constitutes the water inlet end of the water pumping pipeline 32. The second pipe section 322 extends in the horizontal direction. One end of the second pipe section 322 is connected to the upper end of the first pipe section 321, and the other end of the second pipe section 322 is connected to the water inlet 311 of the self-priming pump 31. The check valve 35 is arranged in the second pipe section 322. That is to say, the lower end of the first pipe section 321 is located in the collecting tank 1 and forms the water inlet end of the pumping pipeline 32, and the two ends of the second pipe section 322 are respectively connected to the upper end of the first pipe section 321 and the water inlet 311 of the self-priming pump 31, that is, the self-priming pump 31 is connected with the first pipe section 321 through the second pipe section 322, so that a connecting flow path can be formed between the collecting tank 1, the first pipe section 321, the second pipe section 322 and the self-priming pump 31, so that the water in the collecting tank 1 can enter the self-priming pump 31 through the first pipe section 321 and the second pipe section 322 in turn.

[0035] Among them, the check valve 35 is arranged in the second pipe section 322 extending in the horizontal direction, and it can be understood that the check valve 35 has a valve cavity, a first connecting port, a second connecting port and a valve flap. The first connecting port and the second connecting port are arranged on opposite sides of the valve cavity in the horizontal direction and are both connected to the valve cavity. The first connecting port is located on the side of the valve cavity away from the self-priming pump 31, and the second connecting port is located on the side of the valve cavity close to the self-priming pump 31. The valve flap is arranged on the side of the first connecting port facing the valve cavity, and the valve flap is used to block the first connecting port. Therefore, by setting the check valve 35 in the second pipe section 322, impurities entering the valve cavity will fall to the lower part of the valve cavity due to their own weight, thereby avoiding impurities accumulating at the first connecting port to hinder the valve flap from blocking the first connecting port, so as to ensure the reliability of the check valve 35 in blocking the liquid in the pump cavity from flowing through the check valve 35 toward the collection tank 1.

[0036] According to some embodiments of the present invention, the distance between the water inlet end of the pumping pipe 32 and the bottom of the collecting tank 1 is not less than 80 cm. It is understandable that the larger the distance between the water inlet end of the pumping pipe 32 and the bottom of the collecting tank 1, the more space can be reserved for the collecting tank 1 to store sludge and debris. In this way, it can be ensured that there is sufficient space for storing sludge and debris in the collecting tank 1. In addition, the risk of sludge and debris accumulated at the bottom of the collecting tank 1 entering the pumping pipe 32 through the water inlet end can be reduced, thereby avoiding the sludge and debris accumulated at the bottom of the tank from clogging the pumping pipe 32, which is beneficial to improving the reliability of the drainage component 3. Among them, the distance between the water inlet end of the pumping pipe 32 and the bottom of the collecting tank 1 can be 80 cm, 82 cm, 85 cm, 87 cm, 90 cm, 93 cm, 95 cm, 100 cm, etc., and no specific restrictions are made here.

[0037] According to some embodiments of the present invention, the drainage end of the collection pipe 2 is located above the upper limit of the liquid level of the collection tank 1. The upper limit of the liquid level of the collection tank 1 here refers to the maximum liquid level value that can be stored in the collection tank 1. In other words, when the liquid level in the collection tank 1 reaches the maximum set liquid level value, the drainage end of the collection pipe 2 is still located above the liquid level in the collection tank 1. In this way, it is possible to better avoid the water in the collection tank 1 from generating resistance to the water discharged into the collection tank 1 through the drainage end of the collection pipe 2, which is beneficial to improving the efficiency of the water in the collection pipe 2 entering the collection tank 1, thereby improving the collection efficiency of the rainwater collection device 100.

[0038] According to some embodiments of the present invention, the collection pipe 2 is a groove formed on the ground. It is understood that the groove-shaped collection pipe 2 is formed with an opening that opens upward, so that rainwater can directly enter the collection pipe 2 through the opening, thereby facilitating the collection of rainwater by the collection pipe 2 and improving the efficiency of the collection of rainwater by the collection pipe 2.

[0039] According to some embodiments of the present invention, the rainwater collection device 100 further includes an overflow prevention assembly 4, which is connected to the collection tank 1 and is used to drain liquid from the collection tank 1 that exceeds an upper limit. Specifically, when the liquid level in the collection tank 1 exceeds a set maximum liquid level threshold, the overflow prevention assembly 4 can drain the liquid from the collection tank 1 to maintain the liquid level within the collection tank 1 at or below the set maximum liquid level threshold. Thus, the provision of the overflow prevention assembly 4 prevents overflow of the water in the collection tank 1 due to exceeding the upper limit, thereby improving the reliability of the collection tank 1.

[0040] According to some embodiments of the present invention, the overflow prevention component 4 includes: an overflow prevention pipeline 41 and an overflow prevention solenoid valve 42. A collection solenoid valve 5 is provided in the collection pipeline 2 for controlling the on-off of the collection pipeline 2. The water inlet end of the overflow prevention pipeline 41 is connected to the collection pipeline 2 and is located on the upstream side of the collection solenoid valve 5. The overflow prevention solenoid valve 42 is provided in the overflow prevention pipeline 41 to control the on-off of the overflow prevention pipeline 41. That is to say, the collecting solenoid valve 5 is located between the connection position between the overflow prevention pipeline 41 and the collecting pipeline 2 and the drainage end of the collecting pipeline 2, so that the collecting solenoid valve 5 can be used to control the drainage of the collecting pipeline 2 into the collecting tank 1 or stop the drainage, which is beneficial to improving the degree of automation of the drainage of the collecting pipeline 2 into the collecting tank 1, and the overflow prevention component 4 is located on the upstream side of the collecting solenoid valve 5. Therefore, no matter whether the collecting solenoid valve 5 is opened or closed, the overflow prevention pipeline 41 is connected to the collecting pipeline 2, which is convenient for the drainage of the overflow prevention pipeline 41. At the same time, the overflow prevention solenoid valve 42 can flexibly control the on and off of the overflow prevention pipeline 41 according to the liquid level in the collecting tank 1, thereby better improving the degree of automation of the drainage of the overflow prevention component 4.

[0041] Specifically, when the liquid level in the collecting tank 1 has not reached the upper limit of the liquid level, the collecting solenoid valve 5 is in the on state and the anti-overflow solenoid valve 42 is in the off state, that is, the collecting pipeline 2 is in the on state and the anti-overflow pipeline 41 is in the off state, so that the water in the collecting pipeline 2 enters the collecting tank 1; when the water in the collecting tank 1 reaches the upper limit of the liquid level, the collecting solenoid valve 5 is in the off state and the anti-overflow solenoid valve 42 is in the off state, that is, the collecting pipeline 2 is in the off state and the anti-overflow pipeline 41 is in the on state, preventing the liquid in the collecting pipeline 2 from entering the collecting tank 1 and exceeding the upper limit of the liquid level, and the water in the collecting pipeline 2 is discharged through the anti-overflow pipeline 41.

[0042] In some embodiments, the rainwater collection device 100 also includes a rainwater pipe network, and the overflow prevention pipeline 41 can directly transport rainwater to the rainwater pipe network. By setting the overflow prevention solenoid valve 42, the risk of polluted water entering the rainwater pipe network and causing environmental accidents can be better avoided.

[0043] According to some embodiments of the present invention, a liquid level sensor 6 is provided in the collection tank 1, and the liquid level sensor 6 is electrically connected to the anti-overflow solenoid valve 42. That is, the signal received by the liquid level sensor 6 can be transmitted to the anti-overflow solenoid valve 42, so that the anti-overflow solenoid valve 42 can be controlled to be on and off according to the received signal from the liquid level sensor 6, which is conducive to improving the degree of automation of the anti-overflow component 4. Specifically, when the liquid level in the collection tank 1 reaches the upper limit, the liquid level sensor 6 transmits a signal to the anti-overflow solenoid valve 42, and the anti-overflow solenoid valve 42 opens, thereby preventing the liquid level in the collection tank 1 from exceeding the upper limit and causing water to overflow; when the liquid level in the collection tank 1 reaches the lower limit, the liquid level sensor 6 transmits a signal to the anti-overflow solenoid valve 42, and the anti-overflow solenoid valve 42 closes, which can also prevent the liquid level in the collection tank 1 from being too low and the self-priming pump 31 from idling and causing damage, thereby extending the service life of the self-priming pump 31. In a specific example, the liquid level sensor 6 is a radar level gauge.

[0044] In some embodiments, the liquid level sensor 6 is electrically connected to the overflow prevention solenoid valve 42, the collection solenoid valve 5, and the water replenishment solenoid valve 342. This allows signals received by the liquid level sensor 6 to be transmitted to the overflow prevention solenoid valve 42, the collection solenoid valve 5, and the water replenishment solenoid valve 342. These signals can then be controlled to operate in accordance with the signals received from the liquid level sensor 6, thereby enhancing the automation level of the rainwater collection device 100. Specifically, a first preset liquid level, a second preset liquid level, and a third preset liquid level are set for the collection tank 1. The first preset liquid level is higher than the second preset liquid level, and the second preset liquid level is higher than the third preset liquid level. Specifically, when the liquid level sensor 6 detects that the water level in the collection tank 1 is not higher than the first preset liquid level, the collection solenoid valve 5 receives the signal and enters the on state, while the overflow prevention solenoid valve 42 receives the signal and enters the off state. When the liquid level sensor 6 detects that the water level in the collection tank 1 is higher than the first preset liquid level, the collection solenoid valve 5 receives the signal and enters the off state, while the overflow prevention solenoid valve 42 receives the signal and enters the on state. At the same time, when the liquid level sensor 6 detects that the water level in the collection tank 1 has reached a second preset level, the water supply solenoid valve 342 receives a signal and opens to supply water to the self-priming pump 31. After the water supply time expires, the water supply solenoid valve 342 closes, and the self-priming pump 31 begins to operate. When the liquid level sensor 6 detects that the water level in the collection tank 1 has fallen below a third level, the self-priming pump 31 stops operating. In a specific example, the first preset level may be 1.8 m, the second preset level may be 1.3 m, and the third preset level may be 0.8 m.

[0045] The following describes a rainwater treatment system according to an embodiment of the second aspect of the present invention with reference to the accompanying drawings.

[0046] According to the second embodiment of the present invention, the rainwater treatment system includes: a rainwater collection device 100.

[0047] According to the rainwater treatment system of the second embodiment of the present invention, the water supply solenoid valve 342 controls the on-off state of the water supply pipeline 341, thereby controlling the water supply pipeline 341 to supply water to the pump chamber of the self-priming pump 31 and to stop supplying water. In other words, the water supply solenoid valve 342 can realize automatic water supply of the self-priming pump 31, which is conducive to improving the automation level of the drainage assembly 3. In addition, the check valve 35 is closed when the liquid in the pumping pipeline 32 flows from the water outlet to the water inlet. Therefore, when the water supply mechanism 34 supplies water to the pump chamber, the liquid in the pump chamber is prevented from flowing through the check valve 35 toward the collection tank 1 and affecting the water supply efficiency, thereby effectively improving the water supply efficiency of the self-priming pump 31.

[0048] Among them, the rainwater treatment system can be used for the new initial rainwater purification and sewage diversion in smelters.

[0049] In some embodiments, the rainwater management system includes a rainwater collection ditch and multiple rainwater collection devices 100. The water inlet ends of the collection pipes 2 of the multiple rainwater collection devices 100 are all connected to the rainwater collection ditch, so that water collection by multiple rainwater collection devices 100 can be achieved, which is beneficial to improving the rainwater collection efficiency.

[0050] In some embodiments, the rainwater management system includes a rainwater treatment device, and the drainage end of the drainage pipe 33 of the rainwater collection device 100 is connected to the rainwater treatment device. The rainwater treatment device can perform sedimentation, filtration and other treatments on the rainwater so that the rainwater treated by the rainwater treatment device can be used by the factory, saving water costs.

[0051] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; they can refer to direct connection or indirect connection through an intermediate medium; they can refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0052] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0053] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A rainwater collection device, characterized in that: include: Collection pool; a collecting pipe, wherein a drainage end of the collecting pipe is connected to the collecting tank; The drainage assembly includes a self-priming pump, a water pumping pipeline, a drainage pipeline and a water replenishment mechanism, one end of the water pumping pipeline is located in the collection tank, and the other end of the water pumping pipeline is connected to the water inlet of the self-priming pump. A check valve is provided in the water pumping pipeline, and the check valve is unidirectionally conductive in the direction toward the self-priming pump. The drainage pipeline is connected to the water outlet of the self-priming pump. The water replenishment mechanism includes a water replenishment pipeline and a water replenishment solenoid valve. The water replenishment pipeline is used to replenish water to the pump chamber of the self-priming pump, and the water replenishment solenoid valve is used to control the on-off of the water replenishment pipeline.

2. The rainwater collection device according to claim 1, characterized in that: The self-priming pump is provided with a water supply port which is in communication with the pump cavity, and the water outlet end of the water supply pipeline is in communication with the water supply port.

3. The rainwater collection device according to claim 1, characterized in that: A water supply joint is provided on the drainage pipeline, and the water outlet end of the water supply pipeline is connected with the drainage pipeline through the water supply joint.

4. The rainwater collection device according to claim 3, characterized in that: The distance between the water supply joint and the water outlet of the self-priming pump ranges from 8 cm to 15 cm.

5. The rainwater collection device according to claim 1, characterized in that: The water pumping pipeline includes a first pipe section and a second pipe section. The first pipe section extends in the up-down direction. The lower end of the first pipe section constitutes the water inlet end of the water pumping pipeline. The second pipe section extends in the horizontal direction. One end of the second pipe section is connected to the upper end of the first pipe section. The other end of the second pipe section is connected to the water inlet of the self-priming pump. The check valve is arranged in the second pipe section.

6. The rainwater collection device according to claim 1, characterized in that: The distance between the water inlet end of the pumping pipeline and the bottom of the collection tank is not less than 80 cm.

7. The rainwater collection device according to claim 1, characterized in that: The drainage end of the collecting pipeline is located above the upper limit of the liquid level of the collecting tank; and / or the collecting pipeline is a groove formed on the ground.

8. The rainwater collection device according to claim 1, characterized in that: It also includes an overflow prevention component, which is communicated with the collection tank and is used to discharge the liquid in the collection tank that exceeds the upper limit of the liquid level.

9. The rainwater collection device according to claim 8, characterized in that: The overflow prevention component includes: an overflow prevention pipeline and an overflow prevention solenoid valve. The collection pipeline is provided with a collection solenoid valve for controlling the on-off of the collection pipeline. The water inlet end of the overflow prevention pipeline is connected to the collection pipeline and is located on the upstream side of the collection solenoid valve. The overflow prevention solenoid valve is provided in the overflow prevention pipeline to control the on-off of the overflow prevention pipeline.

10. The rainwater collection device according to claim 9, characterized in that: A liquid level sensor is provided in the collection tank, and the liquid level sensor is electrically connected to the anti-overflow solenoid valve.

11. A rainwater treatment system, characterized in that: include: A rainwater collection device according to any one of claims 1 to 10.

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