Secondary water supply equipment with automatic pressure stabilization function
By installing water quality circulation protection components in secondary water supply equipment, the problem of water quality deterioration caused by water stagnation is solved, automatic pressure stabilization and cleaning of water quality are achieved, and the efficiency of equipment use and water quality safety are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 南通国泰供水设备有限公司
- Filing Date
- 2025-10-22
- Publication Date
- 2026-07-14
AI Technical Summary
In common secondary water supply equipment, when water is stagnant in the storage tank during use, bacteria can easily grow, leading to poor water quality.
A secondary water supply device with automatic pressure stabilization function was designed. By setting up a water quality circulation protection component in the electrical control box, including a circulation filter pump, a circulation filter and a backwash component, the device can achieve circulation filtration and backwash cleaning of stagnant water to keep the water quality clean.
It effectively prevents the water quality in the storage tank from deteriorating, reduces bacterial growth, keeps the water clean, and reduces the frequency of replacing the circulating filter.
Smart Images

Figure CN224495285U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of secondary water supply equipment, specifically a secondary water supply equipment with automatic pressure stabilization function. Background Technology
[0002] Secondary water supply equipment is a key device for ensuring normal water supply in high-rise buildings or areas with insufficient water pressure. When the municipal water supply network pressure cannot meet the water demand of high-rise buildings, it delivers water to each floor through a pressurization system. This equipment typically consists of a water tank, water pump, pressure tank, and control cabinet, and can automatically adjust its operation to ensure stable water pressure. Its advantage lies in its ability to intelligently start and stop the water pump according to actual water consumption, making it energy-efficient and highly effective. Secondary water supply equipment is widely used in residential communities, commercial complexes, hospitals, and other places, effectively ensuring the water safety and convenience of end users, and is an indispensable and important component of modern urban water supply systems.
[0003] Utility model patent CN222648905U discloses a secondary water supply device with quantitative water supply function, belonging to the technical field of secondary water supply equipment. It includes a water storage tank, a set of stirring components mounted on the tank, a shell mounted on one side of the tank, a display screen mounted on the other side of the shell, a controller installed inside the shell, and upper and lower water level sensors mounted on the inner wall of one side of the tank. This utility model's secondary water supply device with quantitative water supply function has the advantages of uniformly stirring water, preventing water quality deterioration, and accurately controlling water volume. It prevents water from remaining stagnant for extended periods, thus preventing the formation of scale and other substances, and also reduces bacterial growth. By monitoring the water level in the storage tank through the upper and lower water level sensors, combined with precise control using an electric butterfly valve, the water supply can be accurately adjusted to ensure that actual needs are met and to avoid wasting water resources.
[0004] However, in common secondary water supply equipment, a large amount of water remains in the storage tank during use. When the water consumption is low, bacteria can easily grow, leading to a deterioration in water quality. Therefore, a secondary water supply equipment with automatic pressure stabilization function is proposed to solve the problems mentioned above. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a secondary water supply device with automatic pressure stabilization function, which has advantages such as circulating and filtering water sources retained in the storage tank, thus solving the problems mentioned in the background technology.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A secondary water supply device with automatic pressure stabilization function includes a water storage tank, an electrical control box is fixedly installed at the bottom of the water storage tank, and a water quality circulation protection component is provided on the electrical control box;
[0008] The water quality circulation protection component includes a circulating filter pump fixedly installed on one side of the electrical control box. A circulating water pipe is fixedly installed at the input end of the circulating filter pump and is connected to a water storage tank. A connecting pipe is fixedly installed at the output end of the circulating filter pump. A circulating filter is connected to one end of the connecting pipe via a flange. A return pipe is connected to one end of the circulating filter via a flange. One end of the return pipe is connected to the water storage tank. A backwashing component for cleaning the circulating filter is provided on one side of the electrical control box.
[0009] Furthermore, the backwash assembly includes a backwash pump fixedly installed on one side of the electrical control box. A backwash pumping pipe is fixedly installed at the input end of the backwash pump. One end of the backwash pumping pipe is connected to a water storage tank. A backwash output pipe is fixedly installed at the output end of the backwash pump. One end of the backwash output pipe is connected to a return pipe. A drain pipe is fixedly installed at the bottom of the connecting pipe. Differential pressure sensors are fixedly installed at both ends of the circulating filter.
[0010] Furthermore, a connecting valve is fixedly installed on the surface of the connecting pipe, and a return valve is fixedly installed on the surface of the return pipe.
[0011] Furthermore, a backflush valve is fixedly installed on the surface of the backflush output pipe, and a drain valve is fixedly installed on the surface of the drain pipe.
[0012] Furthermore, a water supply pipe is fixedly installed on the top of the water storage tank, a water supply valve is fixedly installed on the surface of the water supply pipe, and a variable frequency water supply pump is fixedly installed on the top of the water storage tank.
[0013] Furthermore, a water supply pumping pipe is fixedly installed at the input end of the variable frequency water supply pump, extending into the interior of the water storage tank, and a water supply output pipe is fixedly installed at the output end of the variable frequency water supply pump.
[0014] Furthermore, a water pressure sensor is fixedly installed on the top of the water supply output pipe, and a water pumping filter head is fixedly installed at one end of the water supply pumping pipe.
[0015] Furthermore, a water level sensor is fixedly installed on the inner wall of the water storage tank, and support legs are fixedly installed at the four corners of the bottom of the water storage tank.
[0016] Compared with the prior art, this utility model provides a secondary water supply device with automatic pressure stabilization function, which has the following beneficial effects:
[0017] 1. This secondary water supply equipment with automatic pressure stabilization function, by installing a water quality circulation protection component on one side of the electrical control box, activates the circulation filter pump when water consumption is low, extracts the water stagnant in the storage tank, filters it through the circulation filter, and returns it to the storage tank, preventing the water stagnant in the storage tank from deteriorating. This solves the problem of common secondary water supply equipment where a large amount of water remains in the storage tank during use, which easily breeds bacteria and leads to water quality deterioration when water consumption is low.
[0018] 2. This secondary water supply equipment with automatic pressure stabilization function installs differential pressure sensors at both ends of the circulating filter. When the pressure difference between the two ends of the circulating filter is too high, the circulating filter is backwashed. Water is pumped out by the backwash pump to flush out the impurities in the circulating filter and discharge them through the drain pipe, reducing the frequency of replacing the circulating filter. Attached Figure Description
[0019] Figure 1 This is a front sectional view of the present invention;
[0020] Figure 2 This is a front view of the present utility model;
[0021] Figure 3 This is a front view of the water quality circulation protection component of this utility model;
[0022] Figure 4 This is a three-dimensional drawing of the water storage tank of this utility model.
[0023] In the diagram: 1. Water storage tank; 2. Electrical control box; 3. Circulating filter pump; 4. Circulating water pipe; 5. Connecting pipe; 51. Connecting valve; 6. Circulating filter; 7. Return pipe; 71. Return valve; 8. Backflush pump; 9. Backflush pumping pipe; 10. Backflush output pipe; 101. Backflush valve; 11. Sewage pipe; 111. Sewage valve; 12. Differential pressure sensor; 13. Water supply pipe; 131. Water supply valve; 14. Variable frequency water supply pump; 15. Water supply pumping pipe; 16. Water supply output pipe; 17. Water pressure sensor; 18. Pumping filter head; 19. Water level sensor; 20. Support leg. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figures 1 to 4The secondary water supply device with automatic pressure stabilization function in this embodiment includes a water storage tank 1, an electrical control box 2 is fixedly installed at the bottom of the water storage tank 1, and a water quality circulation protection component is provided on the electrical control box 2.
[0026] The water quality circulation protection component includes a circulation filter pump 3 fixedly installed on one side of the electrical control box 2. A circulation water pipe 4 is fixedly installed at the input end of the circulation filter pump 3 and is connected to the water storage tank 1. A connecting pipe 5 is fixedly installed at the output end of the circulation filter pump 3. A circulation filter 6 is connected to one end of the connecting pipe 5 by a flange. A return pipe 7 is connected to one end of the circulation filter 6 by a flange. One end of the return pipe 7 is connected to the water storage tank 1. A backwashing component for cleaning the circulation filter 6 is provided on one side of the electrical control box 2.
[0027] Specifically, when water consumption is low, the circulating filter pump 3 is started to draw water out of the water storage tank 1. After being filtered by the circulating filter 6, the water flows back to the water storage tank 1 through the return pipe 7, so that the water quality in the water storage tank 1 remains clean.
[0028] Secondly, the backwash assembly includes a backwash pump 8 fixedly installed on one side of the electrical control box 2. A backwash pump pipe 9 is fixedly installed at the input end of the backwash pump 8. One end of the backwash pump pipe 9 is connected to the water storage tank 1. A backwash output pipe 10 is fixedly installed at the output end of the backwash pump 8. One end of the backwash output pipe 10 is connected to the return pipe 7. A drain pipe 11 is fixedly installed at the bottom of the connecting pipe 5. Differential pressure sensors 12 are fixedly installed at both ends of the circulating filter 6.
[0029] Specifically, the differential pressure sensor 12 detects the pressure difference across the circulating filter 6. When the pressure difference is large, the electrical control box 2 starts the backwash pump 8 to extract water from the water storage tank 1 and backwash the circulating filter 6 to flush out impurities in the circulating filter 6 and discharge them through the drain pipe 11.
[0030] Meanwhile, a connecting valve 51 is fixedly installed on the surface of the connecting pipe 5, and a return valve 71 is fixedly installed on the surface of the return pipe 7.
[0031] A backflush valve 101 is fixedly installed on the surface of the backflush output pipe 10, and a drain valve 111 is fixedly installed on the surface of the drain pipe 11.
[0032] Specifically, during the circulating filtration, the electrical control box 2 opens the connecting valve 51 and the return valve 71, and closes the backwash valve 101 and the drain valve 111. During backwashing, the electrical control box 2 opens the backwash valve 101 and the drain valve 111, and closes the connecting valve 51 and the return valve 71.
[0033] Please see Figure 1 and Figure 2In this embodiment, a water supply pipe 13 is fixedly installed on the top of the water storage tank 1, a water supply valve 131 is fixedly installed on the surface of the water supply pipe 13, and a variable frequency water supply pump 14 is fixedly installed on the top of the water storage tank 1.
[0034] The variable frequency water pump 14 has a water supply pump pipe 15 fixedly installed at its input end, which extends into the interior of the water storage tank 1, and a water supply output pipe 16 fixedly installed at its output end.
[0035] Secondly, a water pressure sensor 17 is fixedly installed on the top of the water supply output pipe 16, and a water pumping filter head 18 is fixedly installed at one end of the water supply pumping pipe 15.
[0036] Finally, a water level sensor 19 is fixedly installed on the inner wall of the water tank 1, and support legs 20 are fixedly installed at the four corners of the bottom of the water tank 1.
[0037] Specifically, the water level sensor 19 detects the water level in the water storage tank 1. When the water level is low, the water supply valve 131 is opened to replenish the water storage tank 1. During water supply, the variable frequency water supply pump 14 is started to supply water. The water pressure sensor 17 detects the water pressure in the water supply output pipe 16. The controller in the electrical control box 2 adjusts the output power of the variable frequency water supply pump 14 according to the water pressure to maintain a stable water pressure output.
[0038] The working principle of the above embodiment is as follows: When the water consumption is low, the electrical control box 2 opens the connecting valve 51 and the return valve 71, closes the backwash valve 101 and the drain valve 111, starts the circulating filter pump 3, and draws out the water in the storage tank 1. After the water is filtered by the circulating filter 6, it flows back to the storage tank 1 through the return pipe 7, so that the water quality in the storage tank 1 remains clean. The differential pressure sensor 12 detects the pressure difference across the circulating filter 6. When the pressure difference is large, the electrical control box 2 opens the backwash valve 101 and the drain valve 111, closes the connecting valve 51 and the return valve 71, starts the backwash pump 8, draws out the water in the storage tank 1, backwashes the circulating filter 6, flushes out the impurities in the circulating filter 6, and discharges it through the drain pipe 11.
[0039] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that achieves the desired beneficial effect can be implemented. Furthermore, all electrical components in this embodiment are electrically connected to the main controller and power supply. The main controller can be a conventional, known device such as a computer that performs control functions. Those skilled in the art can control the electrical components through simple programming, and the existing disclosed power connection technologies are common knowledge in the field. Therefore, this embodiment will not elaborate further on their specific structural composition and working principles.
[0040] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element 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 of this application.
[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A secondary water supply device with automatic pressure stabilization function, comprising a water storage tank (1), characterized in that: An electrical control box (2) is fixedly installed at the bottom of the water storage tank (1), and a water quality circulation protection component is provided on the electrical control box (2); The water quality circulation protection component includes a circulation filter pump (3) fixedly installed on one side of the electrical control box (2). A circulation water pipe (4) is fixedly installed at the input end of the circulation filter pump (3). The circulation water pipe (4) is connected to the water storage tank (1). A connecting pipe (5) is fixedly installed at the output end of the circulation filter pump (3). A circulation filter (6) is connected to one end of the connecting pipe (5) by a flange. A return pipe (7) is connected to one end of the circulation filter (6) by a flange. One end of the return pipe (7) is connected to the water storage tank (1). A backwashing component for cleaning the circulation filter (6) is provided on one side of the electrical control box (2).
2. A secondary water supply device with automatic pressure stabilization function according to claim 1, characterized in that: The backwash assembly includes a backwash pump (8) fixedly installed on one side of the electrical control box (2). A backwash pump pipe (9) is fixedly installed at the input end of the backwash pump (8). One end of the backwash pump pipe (9) is connected to the water storage tank (1). A backwash output pipe (10) is fixedly installed at the output end of the backwash pump (8). One end of the backwash output pipe (10) is connected to the return pipe (7). A sewage pipe (11) is fixedly installed at the bottom of the connecting pipe (5). Differential pressure sensors (12) are fixedly installed at both ends of the circulating filter (6).
3. A secondary water supply device with automatic pressure stabilization function according to claim 1, characterized in that: A connecting valve (51) is fixedly installed on the surface of the connecting pipe (5), and a return valve (71) is fixedly installed on the surface of the return pipe (7).
4. A secondary water supply device with automatic pressure stabilization function according to claim 2, characterized in that: A backflush valve (101) is fixedly installed on the surface of the backflush output pipe (10), and a drain valve (111) is fixedly installed on the surface of the drain pipe (11).
5. A secondary water supply device with automatic pressure stabilization function according to claim 1, characterized in that: A water supply pipe (13) is fixedly installed on the top of the water storage tank (1), a water supply valve (131) is fixedly installed on the surface of the water supply pipe (13), and a variable frequency water supply pump (14) is fixedly installed on the top of the water storage tank (1).
6. A secondary water supply device with automatic pressure stabilization function according to claim 5, characterized in that: The variable frequency water pump (14) has a water supply pump pipe (15) fixedly installed at its input end, which extends into the interior of the water storage tank (1), and a water supply output pipe (16) fixedly installed at its output end.
7. A secondary water supply device with automatic pressure stabilization function according to claim 6, characterized in that: A water pressure sensor (17) is fixedly installed on the top of the water supply output pipe (16), and a water pumping filter head (18) is fixedly installed at one end of the water supply pumping pipe (15).
8. A secondary water supply device with automatic pressure stabilization function according to claim 1, characterized in that: A water level sensor (19) is fixedly installed on the inner wall of the water storage tank (1), and support legs (20) are fixedly installed at the four corners of the bottom of the water storage tank (1).