High-rise water supply system

Abstract

The utility model discloses a high-rise water supply system, which comprises a water supply pipeline arranged in a building, and is characterized in that a water pump is arranged on the water supply pipeline and comprises a tubular stator, a rotor rotationally matched in the stator, an electric drive winding arranged on the stator and used for driving the rotor to rotate, and a spiral blade arranged in the rotor, the stator is communicated with a water supply pipeline, the spiral blade is connected with the rotor, and the stator is provided with a power source assembly used for providing electric energy for the electric drive winding. The utility model provides a high-rise water supply system which does not need to be provided with a water storage tank located on a roof, and a water pump of the high-rise water supply system can directly provide water flow for a water supply pipeline in a building.

Description

Technical Field

[0001] This utility model relates to the technical field of water supply systems, specifically a high-rise building water supply system. Background Technology

[0002] Water supply in modern urban life is extremely important. Buildings typically use pumps located at the base of the building, often axial flow pumps. However, as buildings rise, conventional axial flow pumps cannot meet the water demands of upper floors. Furthermore, during peak water usage times such as mealtimes, the power of existing pumps is insufficient to supply the entire building. Therefore, current technology generally requires the installation of a water storage tank on the roof. The pumps at the base first pump water to the tank for storage, and then distribute the water to residents from top to bottom. However, this existing water supply method requires regular cleaning of the tank, which not only increases cleaning and maintenance costs but also necessitates water shut-off before cleaning, obviously affecting residents' water usage. Additionally, some wastewater enters the water supply pipes after cleaning, requiring residents to drain the wastewater before resuming normal water use. Moreover, during peak summer water usage times, the water level in the tank decreases with increased water consumption, leading to reduced water pressure and ultimately affecting residents' water supply. Utility Model Content

[0003] The present invention aims to at least partially solve one of the technical problems in the related art: to provide a high-rise water supply system that does not require the installation of a water storage tank on the roof, and whose water pump can directly provide water flow to the water supply pipeline in the building.

[0004] Therefore, one objective of this utility model is to provide a high-rise building water supply system, including a water supply pipeline arranged within the building. The system is characterized by: a water pump installed on the water supply pipeline; the water pump comprising a tubular stator, a rotor rotatably fitted within the stator, an electric drive winding mounted on the stator for driving the rotor, and helical blades placed within the rotor; the stator being connected to the water supply pipeline, and the helical blades connected to the rotor; and a power supply assembly for providing electrical energy to the electric drive winding. By directly driving the rotor and the helical blades within the rotor to rotate within the stator, a large rotational torque can be achieved. Simultaneously, using helical blades instead of conventional impellers allows for a longer contact time between the water flow and the helical blades within the rotor cavity. Therefore, at the same rotational speed, the helical blades can provide a larger water flow rate and higher pumped water pressure. Thus, under the pumping of this system, water can be directly delivered to residents within the high-rise building without the need for an additional water tank. Finally, since the water flow directly through the channel where the helical blades are located within the rotor, a better cooling and heat dissipation effect can be achieved.

[0005] According to one example of the present invention, the outer edge of the helical blade is fixedly connected to the inner wall of the rotor.

[0006] According to one example of the present invention, the helical blade has a central shaft extending along its own central axis, and the central shaft is fixedly connected to the rotor by a connecting rod.

[0007] According to one example of the present invention, the front end of the central shaft is provided with a guide cone.

[0008] According to one example of the present invention, the stator is provided with pipe joints at both ends.

[0009] According to one example of the present invention, at least one end of the stator is provided with a flexible tube communicating with the stator, and a pipe joint located on the side of the flexible tube is installed at the end of the flexible tube away from the stator.

[0010] According to one example of the present invention, the power supply assembly includes terminals arranged on a pipe joint, the terminals being electrically connected to the electric drive windings on the stator, and the terminals at each end of the stator being configured to match the terminals on the adjacent stator.

[0011] According to one example of the present invention, any pipe joint is provided with at least two terminals, and each terminal is electrically connected to the electric drive winding through its corresponding wire.

[0012] According to one example of the present invention, there are multiple water pumps on the water supply pipeline, and each water pump is installed on the water supply pipeline.

[0013] According to one example of this utility model, an extension pipe is provided between any two adjacent water pumps. Both ends of the extension pipe are equipped with water pipe connectors that match the pipe fittings, and the water pipe connectors have plugs that match the terminals on the pipe fittings. The plugs at both ends of the extension pipe are electrically connected via built-in wires. When the water pipe connectors are connected to the pipe fittings, the terminals are electrically connected to the plugs. Multiple water pumps can be connected through the extension pipe. Furthermore, because the extension pipe integrates wires, electrical connection of the wires is achieved simultaneously as the pipes are connected in series axially. An external power supply only needs to be connected to one power supply component to energize the drive windings on multiple stators.

[0014] The above technical solution has the following advantages or beneficial effects: First, the water pump can be directly connected in series at any straight pipe position in the water supply pipeline, which facilitates the installation of the water pump; second, the water pump adopts a structure in which the rotor is set inside the stator and the spiral blades are directly integrated inside the rotor. The water pump constructed in this way can provide greater water flow pressure than conventional axial flow pumps. Moreover, since the water flow channel is directly located inside the rotor, the heat dissipation effect between the rotor and the stator is better. Third, since the stator end has a flexible hose and both the hose and the stator end are equipped with pipe joints, the water pump can be added in series as needed to further increase the water pressure, which is beneficial to the water needs of different floor heights; finally, by integrating wiring terminals on the pipe joints, the circuit connection can be completed simultaneously with the pipe joint connection, making the installation process more integrated.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] Figure 1 This is a structural diagram of an existing high-rise building water supply system.

[0017] Figure 2 This is a structural schematic diagram of the high-rise water supply system of this utility model.

[0018] Figure 3 This is a schematic diagram of the water pump in this utility model.

[0019] Figure 4 This is a schematic diagram of the internal structure of the rotor section in a water pump.

[0020] Figure 5 for Figure 4 Axial side schematic diagram.

[0021] Figure 6 This is a schematic diagram of the internal structure of a rotor with a central shaft in a water pump.

[0022] Figure 7 for Figure 6 Axial side schematic diagram.

[0023] Figure 8 This is a schematic diagram of the extended pipe in a water pump.

[0024] Among them, 100 is a water pump; 200 is a water supply pipeline; 301 is a primary water pump; 302 is a secondary water pump; 303 is a water supply pipeline; and 304 is a water storage tank.

[0025] 1. Stator; 2. Rotor; 3. Helical blade; 3.1. Central shaft; 3.2. Connecting rod; 3.3. Guide cone; 4. Hose; 5. Pipe fitting; 6. Terminal block; 7. Extension pipe; 8. Water pipe fitting; 9. Plug fitting; 10. Wire; 11. Controller. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0027] Existing urban water supply systems for residential buildings typically use pumps installed at the base of the building. However, as the building rises, the pump power must also increase, but there is a limit to the pump's capacity. Furthermore, water demand varies among residents, especially during dinner times in summer when demand is high. This means that simply increasing pump power is insufficient to meet the demand. To address this issue of insufficient pump power during peak water usage times, existing technologies include… Figure 1 As shown, a typical system involves installing one or more water storage tanks on the roof. A primary water pump located at the base pumps domestic water to the rooftop tanks, from which it supplies water to each household from top to bottom. Furthermore, as the building height increases, for example, in buildings with 20 or more stories, the power of a single primary pump may be insufficient. Secondary pumps are then added to intermediate floors to ultimately pump water into the storage tanks. However, the aforementioned high-rise water supply system presents at least the following technical problems:

[0028] 1. Most existing water pumps are axial flow pumps. However, the power requirement for pumps to deliver water from the pipes at the bottom of the building to the water storage tank at the top of the building is large. Therefore, existing water pumps are often large pump units, which need to be housed in a separate pump room at the bottom of the building. If there is a secondary pump, a separate pump room for the secondary pump still needs to be set up on the middle floor of the building, which obviously occupies a lot of equipment space.

[0029] 2. The rooftop water tank needs to be cleaned regularly. This cleaning and maintenance process not only requires additional maintenance costs, but also requires water outages during the maintenance period, which will cause inconvenience to residents. In addition, the wastewater generated during the cleaning process will still enter the water supply pipes. This means that after cleaning, residents need to continuously drain the wastewater from the water supply pipes until the water quality becomes clear before they can use water normally. This process also wastes water. At the same time, the wastewater generated during cleaning entering the water pipes in residents' homes may also pose a potential risk of damage to water-using equipment such as water heaters and underfloor heating pipes.

[0030] 3. In the existing multi-stage water supply system, if any pump fails and needs to be repaired, the entire pump unit needs to be shut down for maintenance, thus preventing water supply. As a result, water outages due to pump electrical faults occur frequently, causing inconvenience to residents.

[0031] Based on the aforementioned drawbacks of existing high-rise water supply systems, this utility model proposes a new high-rise water supply system. The following description, with reference to the accompanying drawings, details an embodiment of a high-rise water supply system according to this utility model.

[0032] This utility model provides a high-rise building water supply system, as shown in the figure, a water supply pipeline 200 arranged in the building, the water inlet of the water supply pipeline 200 is located at the bottom of the building, the water supply pipeline 200 includes a main pipeline extending vertically from bottom to top and water supply branch pipes extending to the rooms of each floor. The lower end of the main pipeline is connected to the water inlet, and each water supply branch pipe is connected to the main pipeline. The feature is that: at least one water pump 100 is provided on the water supply pipeline. Specifically, the water pump 100 includes a tubular stator 1, a rotor 2 rotatably fitted in the stator 1, an electric drive winding provided on the stator 1 for driving the rotor 2 to rotate, and a helical blade 3 placed in the rotor 2. The stator is connected to the water supply pipeline 200, the helical blade 3 is connected to the rotor 2, and the stator 1 is provided with a power supply component for providing power to the electric drive winding. Therefore, when powered by the power supply component, the electric drive winding drives the rotor 2 to rotate relative to the stator 1, which in turn drives the helical blades 3 to rotate, ultimately pumping water through the rotation of the helical blades 3. It should be understood that water flows inside the rotor 2; therefore, the sealing requirements of the electric drive winding in a water environment and the maintenance of the axial position of the rotor 2 under the reaction force of the water flow need to be considered. These can be achieved using various existing bearings and seals. In this embodiment, the considerations for sealing and axial positioning support of the rotor 2 rotating within the stator 1 can refer to existing conventional techniques, which will not be elaborated upon here.

[0033] In the above embodiments, the electric drive winding refers to the winding that can generate a magnetic field when energized and drive the rotor 2 to rotate relative to the stator 1 through the magnetic field. This electric drive winding is a common technology in the existing motor field, so the structure and installation position of the electric drive winding will not be described in detail.

[0034] In this embodiment, the helical blade 3 refers to a helical blade formed by extending a cylindrical helix along the inner cavity of the rotor 2. The helix has at least one complete lead. Therefore, the helical blade 3 in this embodiment is different from the fan blade of an existing axial flow pump.

[0035] As one of the preferred examples of helical blades: Figure 4 and Figure 5 As shown, the outer edge of the helical blade 3 is fixedly connected to the inner wall of the rotor 2. Thus, under the rotation of the helical blade 3, the water flow inside the rotor 2 can move axially under the push of the helical blade 3. Preferably, the projection of the helical blade 3 on its cross-section is annular.

[0036] A second preferred example of a helical blade: such as Figure 6 and Figure 7 As shown, the spiral blade 3 has a central shaft 3.1 extending along its own central axis, and the central shaft 3.1 is fixedly connected to the rotor 2 by a connecting rod 3.2.

[0037] Preferably, the outer edge of the helical blade 3 is in contact with the inner wall of the rotor 2.

[0038] Preferably, a guide cone 3.3 is provided at the front end of the central shaft 3.1. By adding the guide cone 3.3, the axial flow of water at the outlet position on the rotor 2 is improved, thus reducing the vortex situation.

[0039] In a preferred embodiment as described above, the stator 1 is provided with pipe connectors 5 at both ends. The ends of the stator 1 can be connected to an external water supply pipeline through their respective pipe connectors 5.

[0040] Based on the preferred embodiment described above, at least one end of the stator 1 is provided with a flexible hose 4 communicating with the stator 1, and a pipe connector 5 located on the side of the flexible hose 4 is installed at the end of the flexible hose 4 away from the stator 1. When the water pipe 4 is a flexible hose, it is convenient to rewind the flexible hose 4, thereby facilitating the addition of the water pump of this embodiment at any location in the entire water supply system. Specifically, as Figure 1 As shown, the lower end of the stator 1 is provided with a pipe connector 5, and the upper end of the flexible hose 4 is provided with a pipe connector that matches the pipe connector 5. This allows the lower end of the stator 1 and / or the upper end of the flexible hose 4 to connect to other external pipelines through their respective pipe connectors. Alternatively, when the stator 1 does not have a flexible hose 4, both ends of the stator 1 are provided with pipe connectors. Or, when both ends of the stator 1 are provided with flexible hoses 4, the ends of both flexible hoses 4 furthest from the stator 1 are provided with pipe connectors.

[0041] Preferably, both ends of the stator 1 are provided with flexible hoses 4, and the pipe joints at both ends of the stator 1 are located at opposite ends of the two flexible hoses 4.

[0042] In the above embodiments, multiple water pumps are often required when constructing the entire water supply pipeline. Each pump's electric drive winding needs to be energized. If each electric drive winding is connected to an external power source, additional power cables need to be laid along the water supply pipeline. To reduce the work of laying power cables, this embodiment improves upon this by including terminals 6 arranged on pipe joints 5. These terminals 6 are electrically connected to the electric drive windings on the stator 1, and the terminals 6 at the ends of each stator are configured to match the terminals 6 on adjacent stators. In this embodiment, all terminals are integrated on the pipe joints 5. As two corresponding pipe joints 5 on adjacent water pumps are connected and aligned, the terminals 6 on the two pipe joints 5 are simultaneously electrically connected. This eliminates the need for operators to additionally connect the terminals 6. Therefore, only one or a few electric drive windings in the entire water supply pipeline need to be connected to an external power source to ensure that all electric drive windings in the entire water supply pipeline can obtain power. It should be understood that each water pump has a power socket for connecting to an external power source. This power socket is electrically connected to the electric drive winding, allowing the external power source to select any one of the water pumps for power supply during the laying of the water supply pipeline. It should also be understood that the various conventional circuit components added to the electric drive winding for stable, safe, and controllable power supply are conventional improved designs and not essential technical features of this embodiment. Therefore, they will not be described in detail in this technical solution.

[0043] An improvement based on the above embodiments: Each pipe joint is provided with at least two terminals 6, and each terminal is electrically connected to the electric drive winding via its corresponding wire. Specifically, the pipe joint is provided with two terminals 6. By setting two terminals in parallel, if one terminal 6 fails, the circuit can be restored through the other terminal, avoiding open-circuit faults.

[0044] like Figure 1 and Figure 6As shown, the water pump in the above embodiment also includes at least one extension pipe 7. Both ends of the extension pipe 7 are provided with water pipe connectors 8 that match the pipe connectors 5. The water pipe connectors 8 have plugs 9 that match the terminals 6 on the pipe connectors 5. The plugs 9 at both ends of the extension pipe 7 are electrically connected via built-in wires 10. When the water pipe connectors are connected to the pipe connectors 5, the terminals 6 are electrically connected to the plugs 9. Thus, the length of the pipeline can be arbitrarily extended between two water pumps via the extension pipe 7. That is, multiple water pumps and multiple extension pipes 7 can be connected in series alternately to form the entire water supply pipeline, wherein the first water pump or extension pipe 7 is connected to the water inlet at the bottom of the building.

[0045] In the above embodiments, the purpose of pipe connector 5 and water pipe connector 8 is to connect with the connectors on the matching pipe ends and to keep the pipes sealed inside and outside at the connection. For this purpose, pipe connector 5 or water pipe connector 8 at both ends of the same pipe can use matching male and female connectors, thereby enabling the pipes to be connected.

[0046] Based on the power requirements of the electric drive winding, preferably, the stator 1 is equipped with a controller 11, which is communicatively connected to the electric drive winding and also communicatively connected to an external computer host. Thus, the computer host can send control commands to each controller 11 based on information data obtained from sensors along the entire water supply pipeline. Each controller 11 then controls the electric drive winding, ultimately achieving the goal of controlling the rotational speed of the rotor 2.

[0047] Based on the characteristics of the pump structure in the above embodiments, even if some pumps stop due to electrical faults, the spiral channel formed by the spiral blades and the inner cavity of the rotor 2 can still allow water to flow freely. Therefore, the failure of individual pumps will not interfere with the water supply of the entire water supply system. However, when using existing axial flow pumps, because the blade structure of the axial flow pump is a fan blade, when the axial flow pump fails, the stopped fan blades will greatly obstruct the water flow channel, causing the flow of water in the entire series pipeline to be hindered. Therefore, even if other axial flow pumps can still work normally, the water supply system will fail. In addition, it is worth noting that conventional axial flow pumps achieve water pumping by driving the fan blades at high speeds through a high-speed motor. If the water tank is removed and a conventional axial flow pump is used instead, the axial flow pump needs to maintain a high speed at all times to ensure stable water pressure. Such continuous high speed can easily cause motor damage and failure. Furthermore, when the water flow resistance on the fan blades increases and the load applied to the motor exceeds the motor's load capacity, the motor coils are easily damaged. This is also an important reason why axial flow pumps cannot be used for direct water supply in existing water supply systems. The water pump used in this embodiment has an electric drive section structure similar to a direct-drive motor, where the rotor 2 directly integrates the helical blades 3, eliminating the force transmission through the intermediate rotating shaft. This results in greater torque. Furthermore, the structure of the helical blades 3 differs from that of conventional fan blades. Due to the long axial length of the helical blades 3, the contact area between the helical blades 3 and the water flow is large during rotation. Therefore, to achieve the same water pumping effect, the helical blades 3 only need to maintain a low speed. This means that the water pump has the characteristics of low speed and high torque. In addition, the water flow passes directly through the inner cavity of the rotor, which provides good heat dissipation for the electric drive windings. These combined characteristics allow the water pump to maintain a low speed for a long time, thereby providing a stable and continuous water pressure to the water supply pipeline throughout the building, thus eliminating the need for a rooftop water storage tank.

[0048] The omission of the water storage tank in the above embodiments is intended to better solve the problems caused by cleaning the water storage tank among the many technical problems existing in the prior art. Of course, if the water storage tank is retained during the modification of the existing water supply system, thereby ignoring the problems caused by cleaning the water storage tank, and only the water pump in this embodiment is used to replace the traditional axial flow pump, its function compared to that of the axial flow pump should be considered a variation of this utility model and should fall within the protection scope of this utility model.

[0049] It should be understood that a backup water tank can be installed on the roof for temporary water supply needs, but the function of this backup water tank is completely different from that of the existing water storage tanks. The purpose of adding this backup water tank is solely to serve as a reserve water source in the event of an external water supply outage.

[0050] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

[0051] For those skilled in the art, various changes and modifications will undoubtedly be apparent after reading the above description. Therefore, the appended claims should be considered as covering all changes and modifications that encompass the true intent and scope of this utility model. Any and all equivalent scope and content within the scope of the claims should be considered as still falling within the intent and scope of this utility model.

Claims

1. A high-rise building water supply system, comprising water supply pipes (200) arranged within the building, characterized in that: A water pump (100) is provided on the water supply pipeline. The water pump (100) includes a tubular stator (1), a rotor (2) rotatably fitted in the stator (1), an electric drive winding provided on the stator (1) for driving the rotor (2) to rotate, and a helical blade (3) placed in the rotor (2). The stator is connected to the water supply pipeline (200), and the helical blade (3) is connected to the rotor (2). The stator (1) is provided with a power supply component for providing electrical energy to the electric drive winding.

2. The high-rise water supply system according to claim 1, characterized in that: The outer edge of the helical blade (3) is fixedly connected to the inner wall of the rotor (2).

3. The high-rise water supply system according to claim 1, characterized in that: The spiral blade (3) has a central shaft (3.1) extending along its own central axis, and the central shaft (3.1) is fixedly connected to the rotor (2) by a connecting rod (3.2).

4. The high-rise water supply system according to claim 3, characterized in that: The front end of the central shaft (3.1) is provided with a guide cone (3.3).

5. The high-rise water supply system according to any one of claims 1-4, characterized in that: The stator (1) is provided with pipe joints (5) at both ends.

6. The high-rise water supply system according to claim 5, characterized in that: The stator (1) has a flexible hose (4) communicating with the stator (1) at at least one end, and a pipe joint (5) located on the side of the flexible hose (4) is installed at the end of the flexible hose (4) away from the stator (1).

7. The high-rise water supply system according to claim 6, characterized in that: The power supply assembly includes terminals (6) arranged on the pipe joint (5), the terminals (6) being electrically connected to the electric drive windings on the stator (1), and the terminals (6) at the ends of each stator (1) being configured to match the terminals (6) on the adjacent stator (1).

8. The high-rise water supply system according to claim 7, characterized in that: Each pipe joint is provided with at least two terminals (6), and each terminal is electrically connected to the electric drive winding through its corresponding wire.

9. The high-rise water supply system according to claim 7, characterized in that: The water supply pipeline (200) has multiple water pumps (100), and each water pump (100) is installed on the water supply pipeline (200).

10. The high-rise water supply system according to claim 9, characterized in that: An extension pipe (7) is provided between any two adjacent water pumps (100). Both ends of the extension pipe (7) are provided with water pipe connectors (8) that match the pipe connectors (5). The water pipe connectors (8) have plugs (9) that match the wiring terminals (6) on the pipe connectors (5). The plugs (9) at both ends of the extension pipe (7) are electrically connected through built-in wires (10). When the water pipe connectors (8) are connected to the pipe connectors (5), the wiring terminals (6) are electrically connected to the plugs (9).

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