Self-cleaning secondary water supply tank

Abstract

The utility model relates to a kind of self-cleaning secondary water supply water tank, including water tank body, water supply pipeline, control module and be located in the water storage tank of water tank body, self-cleaning module, water level sensor and turbidity sensor, utilize water level sensor, turbidity sensor real-time monitoring the water level and turbidity in water tank body, when the detection value of water level sensor≤preset threshold and the detection value of turbidity sensor≥preset threshold, trigger cleaning program, control system controls flush control valve to open, make the water in water storage tank flow into self-cleaning module under the action of gravity, flush the inner wall of water tank body by spray head, to realize efficient, energy-saving automated cleaning, without additional water pump, reduce energy consumption;In addition, through intelligent sensing and automatic control technology, the accurate triggering and efficient execution of water tank cleaning are realized, effectively improve the water quality guarantee capability of secondary water supply system.

Description

Technical Field

[0001] This utility model relates to the field of water supply tank technology, specifically to a self-cleaning secondary water supply tank. Background Technology

[0002] As a key storage facility in secondary water supply systems, the cleanliness and quality of the water stored in water tanks directly affect the drinking water safety of urban residents and must strictly comply with municipal drinking water standards. However, secondary water supply tanks are prone to the growth of microorganisms and the accumulation of impurities during long-term use, requiring regular cleaning and disinfection to ensure water quality safety.

[0003] Currently, traditional water tank cleaning methods mainly rely on manual operation, which suffers from low efficiency, high labor intensity, and high cleaning costs. In addition, while existing technologies use external water pumps for circulating flushing, which improves cleaning efficiency to some extent, they also have drawbacks such as high energy consumption, complex equipment structure, and high operating costs. Summary of the Invention

[0004] The purpose of this invention is to provide a novel self-cleaning secondary water supply tank.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] This utility model provides a self-cleaning secondary water supply tank, including a tank body, a water supply pipe connected to the tank body, a control module, a water storage tank, a self-cleaning module, a water level sensor, and a turbidity sensor disposed in the tank body.

[0007] The water storage tank is located above the self-cleaning module and has an inlet, an outlet, and an overflow outlet; wherein, the inlet is connected to the municipal water supply pipe; the outlet is located at the bottom of the water storage tank; and the overflow outlet is located at the top of the water storage tank and is used to supply water to the water tank body.

[0008] The self-cleaning module includes a main flushing pipe connected to the outlet of the water storage tank, multiple flushing branch pipes connected to the main flushing pipe and arranged at intervals, multiple nozzles arranged at intervals along the extension direction of each flushing branch pipe, and a flushing control valve provided on the main flushing pipe for controlling the on / off state of the main flushing pipe.

[0009] The water level sensor is used to monitor the water level inside the water tank in real time, and the turbidity sensor is used to monitor the turbidity inside the water tank in real time.

[0010] The control module is configured to: control the flushing control valve to open when the water level sensor detects that the water level in the water tank body is ≤ a preset minimum water level threshold and the turbidity sensor detects that the turbidity is ≥ a preset pollution threshold; otherwise, control the flushing control valve to close.

[0011] In some embodiments, the nozzle includes a connector connected to the flushing branch pipe and a nozzle rotatably disposed at the end of the connector. The nozzle has a plurality of nozzles arranged circumferentially around the connector, each nozzle extending radially outward and covered with spray holes, and the nozzle communicates with the connector. Preferably, there are 2 to 6 nozzles. More preferably, at least one of the plurality of nozzles is bent downwards, and the remaining nozzles are bent upwards.

[0012] In some embodiments, the flushing branch pipe is located in the lower middle part of the water tank body and maintains a preset distance from the bottom of the water storage tank.

[0013] In some embodiments, the flushing branch pipe extends along the length of the water tank body, and multiple flushing branch pipes are arranged in parallel.

[0014] In some embodiments, the secondary water supply tank further includes a self-cleaning filter located at the inlet of the water storage tank.

[0015] In some embodiments, the secondary water supply tank further includes a miniature hydraulic turbine generator located inside the flushing branch pipe, the miniature hydraulic turbine generator being connected to a storage battery.

[0016] In some embodiments, the water supply pipeline includes a main water supply pipe and a first water supply branch pipe and a second water supply branch pipe connected to the main water supply pipe. The first water supply branch pipe is connected to the municipal water supply pipeline and is equipped with a first water supply control valve for controlling the on / off state of the first water supply branch pipe. The second water supply branch pipe is connected to the water tank body and is equipped with a second water supply control valve for controlling the on / off state of the second water supply branch pipe. A water supply pump is installed on the main water supply pipe. Preferably, the first water supply control valve and the second water supply control valve are electrically connected to the control module.

[0017] In some embodiments, the secondary water supply tank is equipped with a sewage discharge pipe, and the sewage discharge pipe is equipped with a sewage discharge control valve for controlling the opening and closing of the sewage discharge pipe. Preferably, the sewage discharge control valve is electrically connected to the control module.

[0018] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0019] This invention utilizes a water level sensor and a turbidity sensor to monitor the water level and turbidity inside the water tank in real time. When the detection value of the water level sensor is less than or equal to a preset threshold and the detection value of the turbidity sensor is greater than or equal to a preset threshold, the control system triggers the cleaning program, controls the flushing control valve to open, and allows water in the storage tank to flow into the self-cleaning module under gravity. The water then flushes the inner wall of the water tank through the nozzle, achieving efficient and energy-saving automated cleaning without the need for an additional water pump, thus reducing energy consumption. In addition, through intelligent sensing and automatic control technology, the water tank cleaning is precisely triggered and efficiently executed, effectively improving the water quality assurance capability of the secondary water supply system. Attached Figure Description

[0020] Figure 1 A perspective view of the secondary water supply tank provided in Example 1;

[0021] Figure 2 This is a schematic diagram of the nozzle structure provided in Example 1;

[0022] The components include: 1. Water tank body; 11. Sewage pipe; 12. Sewage control valve; 2. Water storage tank; 21. Overflow port; 3. Self-cleaning module; 31. Main flushing pipe; 32. Branch flushing pipe; 33. Spray head; 331. Connector; 332. Nozzle; 333. Spray hole; 34. Flushing control valve; 4. Water level sensor; 5. Turbidity sensor; 6. Municipal water supply pipeline; 7. Water supply pipeline; 71. Main water supply pipe; 72. First water supply branch pipe; 73. First water supply control valve; 74. Second water supply branch pipe; 75. Second water supply control valve; 76. Water supply pump. Detailed Implementation

[0023] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0024] In the description of the embodiments of this utility model, it should be understood that "inner" and "outer" are positions defined by distance relative to the center of the device or component, where "inner" is the position closer to the center of the device or component, and "outer" is the position farther from the center of the device or component; "up" and "down" refer to the orientation of the device in its actual use or working state. The above orientations or positional relationships are only for the convenience of describing the embodiments of this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of this utility model.

[0025] In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0026] In this embodiment of the invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] To simplify the disclosure of embodiments of the present invention, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the present invention. Furthermore, reference numerals and / or letters may be repeated in different examples of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0028] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0029] Example 1

[0030] A self-cleaning secondary water supply tank, such as Figure 1As shown, it includes a water tank body 1, a water supply pipe 7 connected to the water tank body 1, a control module, a water storage tank 2, a self-cleaning module 3, a water level sensor 4, and a turbidity sensor 5 located inside the water tank body 1. The water storage tank 2 is located above the self-cleaning module 3 and has an inlet, an outlet, and an overflow outlet 21. The inlet is connected to the municipal water supply pipe 6; the outlet is located at the bottom of the water storage tank 2; and the overflow outlet 21 is located at the top of the water storage tank 2 and is used to supply water to the water tank body 1. The self-cleaning module 3 includes a flushing main pipe 31 connected to the outlet of the water storage tank 2, multiple flushing branch pipes 32 connected to the flushing main pipe 31 and arranged at intervals, multiple nozzles 33 arranged at intervals along the extension direction of each flushing branch pipe 32, and a flushing control valve 34 located on the flushing main pipe 31 and used to control the opening and closing of the flushing main pipe 31. The water level sensor 4 is used to monitor the water level in the water tank body 1 in real time, and the turbidity sensor 5 is used to monitor the turbidity in the water tank body 1 in real time. The control module is configured to: trigger a flushing program when the water level sensor 4 detects that the water level in the water tank body 1 is ≤ a preset minimum water level threshold and the turbidity sensor 5 detects that the turbidity is ≥ a preset pollution threshold; and when the flushing program is triggered, control the flushing control valve 34 to open. During this process, the water flows into the flushing main pipe 31 below through the bottom outlet under the action of gravity, and then flows into the flushing branch pipe 32 through the flushing main pipe 31, and finally sprays out from the nozzle 33, thereby cleaning the inner wall of the water tank body 1; otherwise, control the flushing control valve 34 to close.

[0031] Preferably, the flushing branch pipe 32 is located in the lower middle part of the water tank body 1 and maintains a preset distance from the bottom of the water storage tank 2, thereby forming a height difference between the flushing branch pipe 32 and the water level in the water storage tank 2, which can effectively enhance the water pressure during the flushing process and significantly improve the flushing effect. The preset distance can be designed according to the actual flushing effect and the size of the water tank body. The flushing branch pipe 32 extends along the length direction of the water tank body 1 and is arranged parallel to each other to ensure that the flushing water flow evenly covers the entire flushing area. Multiple nozzles 33 are evenly arranged on the flushing branch pipe 32. Each nozzle 33 includes a connector 331 connected to the flushing branch pipe 32 and a nozzle 332 rotatably disposed at the end of the connector 331. The nozzles 332 have multiple nozzles evenly arranged around the connector 331 in a circumferential direction. In this embodiment, there are 4 nozzles 332. Figure 2 As shown, each nozzle 332 extends outward in a radial pattern, and its interior is connected to the connector 331. Spray holes 333 are evenly distributed on its surface. At least one of the multiple nozzles 332 is configured with a downward tilting structure, while the rest are arranged with an upward tilting structure. This combined spray structure can achieve three-dimensional rinsing coverage, significantly improving rinsing uniformity and cleaning effect.

[0032] Furthermore, a miniature hydraulic turbine generator (whose specific structure can be referred to conventional technical solutions in this field) is also installed at the inlet of the flushing branch pipe 32. The miniature hydraulic turbine generator is connected to a battery. By capturing the kinetic energy of the water flow in the pipeline, the wasted hydraulic resources are converted into usable electrical energy, which can provide auxiliary power for low-voltage equipment such as control modules and sensors.

[0033] The inlet of water storage tank 2 is equipped with a self-cleaning filter (the specific structure of which can be referred to conventional technical solutions in this field). This filter contains a filter screen for effective filtration of the incoming water. When the pressure difference across the filter screen exceeds a preset threshold, the self-cleaning filter's backwashing procedure is triggered. This changes the water flow direction to achieve the self-cleaning function of the filter screen, thereby ensuring the quality of the incoming water to the storage tank. The preset threshold can be adjusted according to actual operating conditions to achieve a balance between optimal filtration effect and cleaning frequency. The pressure difference across the filter screen is detected by a pressure differential sensor in the self-cleaning filter and fed back to the control module in real time. The control module then controls the self-cleaning filter to switch between filtration and backwashing states.

[0034] The water supply pipeline 7 includes a main water supply pipe 71 and a first water supply branch pipe 72 and a second water supply branch pipe 74 connected to the main water supply pipe 71, forming a dual-supply structure. Specifically: the first water supply branch pipe 72 is connected to the municipal water supply pipeline 6 and is equipped with a first water supply control valve 73 for controlling the opening and closing of the municipal water source; the second water supply branch pipe 74 is connected to the water tank body 1 and is equipped with a second water supply control valve 75 for regulating the water supply to the water tank body 1; a water supply pump 76 is installed on the main water supply pipe 71 to increase the water supply pressure and ensure stable water delivery. Both the first water supply control valve 73 and the second water supply control valve 75 are electrically connected to a control module to achieve intelligent regulation.

[0035] In addition, the water tank body 1 is equipped with a sewage discharge pipe 11, and a sewage discharge control valve 12 is installed on the sewage discharge pipe 11. The sewage discharge control valve 12 is electrically connected to the control module, which facilitates remote or automatic control of sewage discharge operation.

[0036] Working principle:

[0037] The water tank has three operating modes: normal operation, flushing preparation, and flushing. Among them:

[0038] When the water tank is in normal operation, the flushing control valve 34 and the first water supply control valve 73 are both closed, while the second water supply control valve 75 is open. At this time, the municipal water supply pipeline 6 continuously supplies water to the water storage tank 2. The water flows into the water tank body 1 through the overflow port 21 of the water storage tank 2, and is then transported to the main water supply pipeline 71 via the second water supply branch pipe 74, thereby supplying water to downstream users.

[0039] When the water tank is in the flushing preparation state, the flushing control valve 34 and the second water supply control valve 75 are both closed, while the first water supply control valve 73 and the drain control valve 12 are both open. At this time, the municipal water supply pipeline 6 directly supplies water to the main water supply pipeline 71 through the first water supply branch pipe 72 to ensure water supply for users; at the same time, the water supply to the water storage tank 2 is stopped so that the liquid level in the water tank body 1 continues to drop in preparation for flushing.

[0040] When the water tank is in flushing mode, flushing control valve 34 and first water supply control valve 73 are open, while second water supply control valve 75 is closed. At this time, the municipal water supply pipeline 6 supplies water directly to the main water supply pipeline 71 through the first water supply branch pipe 72, ensuring water supply for users. Simultaneously, water in the storage tank 2 flows under gravity through the outlet at the bottom into the flushing main pipe 31 below, and then is sprayed out from the nozzle 33 through the flushing branch pipe 32 to flush the inner wall of the water tank body 1. Wastewater generated during flushing can be discharged through the drain pipe 11. During this process, the municipal water supply pipeline 6 can continue or stop supplying water to the storage tank 2.

[0041] The control module monitors the water tank status in real time through water level sensor 4 and turbidity sensor 5, and automatically switches the operating mode accordingly.

[0042] When the water level sensor 4 detects that the water level in the water tank body 1 is less than or equal to the preset minimum water level threshold, and the turbidity sensor 5 detects that the turbidity is greater than or equal to the preset pollution threshold, the control module controls the water tank to switch to the flushing state.

[0043] When the water level sensor 4 detects that the water level in the water tank body 1 is greater than the preset minimum water level threshold, and the turbidity sensor 5 detects that the turbidity is greater than or equal to the preset pollution threshold, the control module controls the water tank to switch to the preparation flushing state.

[0044] When the water level sensor 4 detects that the water level in the water tank body 1 is greater than the preset minimum water level threshold and the turbidity sensor 5 detects that the turbidity is less than the preset pollution threshold; or, when the water level sensor 4 detects that the water level in the water tank body 1 is less than or equal to the preset minimum water level threshold and the turbidity sensor 5 detects that the turbidity is less than the preset pollution threshold, the control module controls the water tank to be in normal operation.

[0045] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A self-cleaning secondary water supply tank, comprising a tank body (1) and a water supply pipe (7) connected to the tank body (1), characterized in that: It also includes a control module and a water storage tank (2) located in the water tank body (1), a self-cleaning module (3), a water level sensor (4) and a turbidity sensor (5); The water storage tank (2) is located above the self-cleaning module (3) and has an inlet, an outlet and an overflow port (21); wherein the inlet is connected to the municipal water supply pipe (6); the outlet is located at the bottom of the water storage tank (2); and the overflow port (21) is located at the top of the water storage tank (2) and is used to supply water to the water tank body (1); The self-cleaning module (3) includes a flushing main pipe (31) connected to the outlet of the water storage tank (2), multiple flushing branch pipes (32) connected to the flushing main pipe (31) and arranged at intervals, multiple nozzles (33) arranged at intervals along the extension direction of each flushing branch pipe (32), and a flushing control valve (34) provided on the flushing main pipe (31) for controlling the opening and closing of the flushing main pipe (31); The water level sensor (4) is used to monitor the water level in the water tank body (1) in real time, and the turbidity sensor (5) is used to monitor the turbidity in the water tank body (1) in real time. The control module is configured to: when the water level sensor (4) detects that the water level in the water tank body (1) is ≤ a preset minimum water level threshold, and the turbidity detected by the turbidity sensor (5) is ≥ a preset pollution threshold, control the flushing control valve (34) to open; otherwise, control the flushing control valve (34) to close.

2. The self-cleaning secondary water supply tank according to claim 1, characterized in that, The nozzle (33) includes a connector (331) connected to the flushing branch pipe (32) and a nozzle (332) rotatably disposed at the end of the connector (331). The nozzle (332) has a plurality of nozzles arranged circumferentially around the connector (331). Each nozzle (332) extends outward in a radial pattern and is covered with spray holes (333). The nozzle (332) is connected to the connector (331).

3. The self-cleaning secondary water supply tank according to claim 2, characterized in that, At least one of the plurality of nozzles (332) bends downward, and the remaining nozzles (332) bend upward.

4. The self-cleaning secondary water supply tank according to claim 1, characterized in that, The flushing branch pipe (32) is located in the lower middle part of the water tank body (1) and maintains a preset distance from the bottom of the water storage tank (2); And / or, the flushing branch pipe (32) extends along the length direction of the water tank body (1), and a plurality of the flushing branch pipes (32) are arranged in parallel.

5. The self-cleaning secondary water supply tank according to claim 1, characterized in that, The secondary water supply tank also includes a self-cleaning filter located at the inlet of the water storage tank (2).

6. The self-cleaning secondary water supply tank according to claim 1, characterized in that, The secondary water supply tank also includes a miniature hydraulic turbine generator installed in the flushing branch pipe (32), which is connected to the battery.

7. The self-cleaning secondary water supply tank according to claim 1, characterized in that, The water supply pipeline (7) includes a main water supply pipe (71) and a first water supply branch pipe (72) and a second water supply branch pipe (74) connected to the main water supply pipe (71). The first water supply branch pipe (72) is connected to the municipal water supply pipeline (6) and is equipped with a first water supply control valve (73). The second water supply branch pipe (74) is connected to the water tank body (1) and is equipped with a second water supply control valve (75). A water supply pump (76) is installed on the main water supply pipe (71).

8. The self-cleaning secondary water supply tank according to claim 7, characterized in that, The first water supply control valve (73) and the second water supply control valve (75) are electrically connected to the control module respectively.

9. The self-cleaning secondary water supply tank according to claim 1, characterized in that, The secondary water supply tank is equipped with a sewage pipe (11), and the sewage pipe (11) is equipped with a sewage control valve (12).

10. The self-cleaning secondary water supply tank according to claim 9, characterized in that, The sewage control valve (12) is electrically connected to the control module.

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