Energy-saving servo direct-drive type secondary water supply unit

Abstract

The invention relates to the technical field of water supply and drainage equipment, in particular to an energy-saving servo direct-drive type secondary water supply unit which comprises a water pump assembly, and a primary water supply assembly and a secondary water supply assembly are arranged on the front side and the rear side of the water pump assembly correspondingly. The top end of the water supply motor is provided with a control device. The control device is arranged, the water supply motor is directly controlled through the controller, the control process can be simplified, meanwhile, control through a control cabinet is not needed, cost can be reduced, and space can be saved; interconnection among different control devices is realized through a network by utilizing a network module, the change of water consumption of a user is detected by utilizing each sensor, the rotating speed and the running number of water supply motors are adjusted in real time through a controller according to the change of the water consumption, servo control is realized, stable water pressure of a user side can be ensured, and meanwhile, electric energy is saved; the network module is connected with external equipment such as a mobile phone or a computer through a network, so that remote checking and remote control can be realized.

Description

Technical Field

[0001] The present invention relates to the technical field of water supply and drainage equipment, and in particular to an energy-saving servo direct-drive secondary water supply unit. Background Art

[0002] Secondary water supply refers to a process in which an organization or individual stores and pressurizes water from the city or their own facilities, then distributes it through pipelines for personal use. Secondary water is primarily used to compensate for insufficient pressure in the municipal water supply and ensure water availability for residents of apartments and high-rise buildings.

[0003] The secondary water supply usually consists of three parts, including: a flow stabilization tank, a secondary water supply unit and a user pipe network. The flow stabilization tank is used to store water to ensure the stability of the primary water supply, and the secondary water supply unit is used to pump the water in the flow stabilization tank into the user pipe network. In the prior art, the secondary water supply unit generally includes: a primary water supply pipe, a water pump unit, a secondary water supply pipe, a pressure compensation component and a control cabinet. The control cabinet is used to receive the detection signals of various key parts, and after processing by the PLC and the frequency converter, it controls the operation of the motor, and then controls the operation of the water pump to achieve water supply. The unit is relatively complex to build, and the control cabinet control is limited by the signal transmission rate and the data processing rate. The control process is relatively lagging, and the energy-saving effect is not good. In addition, the control cabinet also needs to occupy a certain space. Summary of the Invention

[0004] In order to make up for the above deficiencies, the present invention provides an energy-saving servo direct-drive secondary water supply unit.

[0005] The technical solution of the present invention is:

[0006] Energy-saving servo direct-drive secondary water supply unit, including:

[0007] A water pump assembly, wherein a frame is provided below the water pump assembly and fixedly mounted on the bottom surface for supporting the water pump assembly. A primary water supply assembly and a secondary water supply assembly are provided on the front and rear sides of the water pump assembly respectively;

[0008] The primary water supply assembly includes a water inlet main pipe, which is used to connect to the municipal pipe network. The water inlet main pipe is provided with a plurality of water branch pipes, which are connected to the water pump assembly through a first butterfly valve;

[0009] The water pump assembly includes a water supply motor, the shaft of which is connected to a graded water pump, the water inlet of which is connected to a first butterfly valve, and a control device is provided on the top of the water supply motor;

[0010] The secondary water supply assembly includes a water supply main pipe, which is used to connect to the user pipe network. The water supply main pipe is provided with a plurality of manifolds and a manifold, which is connected to the water outlet of the graded water pump through a valve assembly, and the bypass pipe is connected to the pressure stabilizing tank through a third butterfly valve;

[0011] The control device includes a control box, a control module is provided in the control box, and the control module is used to control the operation of the water supply motor. A display device is provided on the front side of the control box, and the display device is used to display the working status of the water supply motor.

[0012] Preferably, a first pressure sensor is provided at the end of the water inlet main pipe, and the first pressure sensor is used to detect the water pressure in the water inlet main pipe. The water inlet pressure gauge is connected to the control device through a wire.

[0013] Preferably, a water inlet pressure sensor is provided at the water inlet of the graded water pump, and the water inlet pressure sensor is used to detect the water inlet pressure of the graded water pump, and the water inlet pressure sensor is connected to the control device via a wire.

[0014] Preferably, a drainage pressure sensor is provided at the water outlet of the graded water pump, and the drainage pressure sensor is used to detect the outlet pressure of the graded water pump. The drainage pressure sensor is connected to the control device via a wire.

[0015] Preferably, a second pressure sensor is provided above the water supply main pipe, and the second pressure sensor is used to detect the internal pressure of the water supply main pipe. The second pressure sensor is connected to the control device through a wire.

[0016] Preferably, the control module includes a data receiving module, and the data receiving module is connected to the first pressure sensor, the water inlet pressure sensor, the water outlet pressure sensor and the second pressure sensor through wires.

[0017] Preferably, the data receiving module is connected to a data processing module and an encoder, the data processing module is connected to a controller, the controller is used to control the water supply motor, the encoder is used to detect the working condition of the water supply motor, and the display device is connected to the data processing module.

[0018] Preferably, the data processing module is further connected to a data storage module, and the data storage module is used to store the unit operating condition data.

[0019] Preferably, the data storage module is connected to a network module via a data encryption module, the network module is connected to an external device via a network, the data encryption module is used to encrypt data, and the network module is used to transmit the encrypted data to the external device via the network.

[0020] Preferably, the network module is also connected to the controller, and the external device can transmit the control command to the network module through the network, and then transmit it to the controller through the network module.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention, by setting a control device, uses a controller to directly control the water supply motor, which can simplify the control process. At the same time, there is no need to use a control cabinet for control, which can save PLC, circuit breaker and other vulnerable parts, reduce costs and save space;

[0023] 2. Use the network module to interconnect different control devices through the network, use various sensors to detect changes in user water consumption, and transmit the changed data to the data receiving module. After being processed by the data processing module, it is transmitted to the controller. The controller adjusts the speed and number of running water supply motors in real time to achieve servo control, which can ensure stable water pressure at the user end and save electricity at the same time.

[0024] 3. Use the network module to connect to external devices such as mobile phones or computers through the network. You can view the operating status of the unit through the external device, and use the network module to remotely control the operation of the water supply motor using external devices through the network. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 Schematic diagram of the rack structure in the present invention;

[0027] Figure 3 This is a structural diagram of the primary water supply component in the present invention;

[0028] Figure 4 This is a schematic structural diagram of the water pump assembly in the present invention;

[0029] Figure 5 This is a second schematic diagram of the water pump assembly structure of the present invention;

[0030] Figure 6 This is a schematic structural diagram of the secondary water supply component in the present invention;

[0031] Figure 7 This is a second schematic diagram of the secondary water supply component structure in the present invention;

[0032] Figure 8 This is a control logic diagram of the control device in the present invention.

[0033] The meanings of the punctuation marks in the figure are:

[0034] 1. Frame; 11. Overhead frame; 12. Load-bearing beam; 13. Load plate; 14. Fixed plate;

[0035] 2. Primary water supply assembly; 21. Water inlet main; 22. First pressure sensor; 23. First sealing flange; 24. Water distribution pipe; 25. First butterfly valve;

[0036] 3. Water pump assembly; 31. Water supply motor; 32. Grading water pump; 33. Water inlet pressure sensor; 34. Drain pressure sensor; 35. Water pump fixing base; 36. Fixing bolt; 37. Elastic member; 38. Lock nut;

[0037] 4. Secondary water supply assembly; 41. Water supply main; 42. Second pressure sensor; 43. Second sealing flange; 44. Manifold; 45. Second butterfly valve; 46. Check valve; 47. Bypass pipe; 48. Third butterfly valve; 49. Pressure regulator tank;

[0038] 5. Control device; 51. Control box; 52. Display device; 53. Data receiving module; 54. Data processing module; 55. Network module; 56. Data encryption module; 57. Data storage module; 58. Encoder; 59. Controller. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0041] The present invention describes the above technical solution in detail through the following embodiments:

[0042] Example 1:

[0043] Refer to the attached Figure 1-8 , energy-saving servo direct-drive secondary water supply unit, including:

[0044] A water pump assembly 3 is provided with a frame 1 below the water pump assembly 3. The frame 1 is fixedly mounted on the bottom surface and is used to support the water pump assembly 3. A primary water supply assembly 2 and a secondary water supply assembly 4 are provided on the front and rear sides of the water pump assembly 3 respectively.

[0045] Frame 1 is used to fix the unit.

[0046] The frame 1 includes an overhead frame 11, which is welded with angle steel. The overhead frame 11 is used to lift the unit. A load-bearing beam 12 is welded on the inside of the overhead frame 11. A load-bearing plate 13 is welded to the load-bearing beam 12 and the top surface of the overhead frame 11. The water pump assembly 3 is located on the top surface of the load-bearing plate 13. Fixed plates 14 are welded on both sides of the overhead frame 11. The fixed plates 14 are fixed to the ground by expansion bolts.

[0047] The primary water supply assembly 2 includes a water inlet main pipe 21 , which is used to connect to the municipal pipe network. Three water distribution pipes 24 are welded to the water inlet main pipe 21 , and the water distribution pipes 24 are connected to the water pump assembly 3 through a first butterfly valve 25 .

[0048] One end of the water inlet main pipe 21 is fixedly connected to a first sealing flange 23 by bolts. The first sealing flange 23 is used to seal the water inlet main pipe 21. The other end of the water inlet main pipe 21 is connected to the municipal pipe network or water storage equipment through a pipeline.

[0049] The first butterfly valve 25 is fixedly mounted on the end face of the water distribution pipe 24 by bolts, and is used to manually control the on-off of the water distribution pipe 24. The first butterfly valve 25 can be closed during maintenance.

[0050] A first pressure sensor 22 is provided at the end of the water inlet main pipe 21 , and the first pressure sensor 22 is connected to the control device 5 via a wire.

[0051] The first pressure sensor 22 is used to detect the water pressure in the water inlet main pipe 21. The first pressure sensor 22 adopts an electric pressure transmitter, which can convert the water pressure signal into an electrical signal.

[0052] The water pump assembly 3 includes a water supply motor 31 , the shaft of which is connected to a graded water pump 32 , the water inlet of which is fixedly connected to the first butterfly valve 25 via bolts, and a control device 5 is provided at the top of the water supply motor 31 .

[0053] When the water supply motor 31 is working, it can drive the input shaft of the graded water pump 32 to rotate through the output shaft, thereby driving the graded water pump 32 to work and realize pressurized pumping of tap water.

[0054] A water inlet pressure sensor 33 is provided at the water inlet of the grading water pump 32 , and the water inlet pressure sensor 33 is connected to the control device 5 via a wire.

[0055] The water inlet pressure sensor 33 is used to detect the water inlet pressure of the graded water pump 32. The water inlet pressure sensor 33 adopts an electric pressure transmitter, which can convert the water pressure signal into an electrical signal.

[0056] A drainage pressure sensor 34 is provided at the water outlet of the grading water pump 32 , and the drainage pressure sensor 34 is connected to the control device 5 via a wire.

[0057] The drainage pressure sensor 34 is used to detect the outlet water pressure of the graded water pump 32. The drainage pressure sensor 34 adopts an electric pressure transmitter, which can convert the water pressure signal into an electrical signal.

[0058] A water pump fixing seat 35 is provided at the bottom of the graded water pump 32, and a fixing bolt 36 is provided below the water pump fixing seat 35. The head of the fixing bolt 36 is located below the load plate 13, and the screw of the fixing bolt 36 passes through the load plate 13 and the water pump fixing seat 35 in sequence and is threadedly connected with a locking nut 38. An elastic member 37 is provided between the water pump fixing seat 35 and the load plate 13, and the elastic member 37 is wrapped around the outside of the screw of the fixing bolt 36.

[0059] The elastic member 37 is used to reduce the vibration generated when the grading water pump 32 is working.

[0060] The secondary water supply assembly 4 includes a water supply main 41, which is used to connect to the user's pipe network. The water supply main 41 is provided with three manifolds 44 and one manifold. The manifold 44 is connected to the water outlet of the graded water pump 32 through a valve assembly. The bypass pipe 47 is connected to the pressure stabilizing tank 49 through a third butterfly valve 48.

[0061] One end of the water supply main pipe 41 is fixedly connected to a second sealing flange 43 by bolts. The second sealing flange 43 is used to seal the end face of the water supply main pipe 41.

[0062] The valve assembly includes a second butterfly valve 45, which is bolted to the bottom end of the manifold 44 and is used to manually control the on / off operation of the manifold 44. A check valve 46 is connected to the bottom of the second butterfly valve 45 via a pipe. The check valve 46 is connected to the outlet of the graded water pump 32 via a pipe. The check valve 46 is a well-known one-way valve that prevents water in the manifold 44 from flowing into the graded water pump 32.

[0063] When the graded water pump 32 is working, it can suck water from the municipal pipe network from the water distribution pipe 24, inject it into the confluence pipe 44 after pressurization, and then enter the water supply main 41, and finally be used by users.

[0064] The third butterfly valve 48 is used to manually control the opening and closing of the bypass pipe 47 .

[0065] The pressure-stabilizing tank 49 adopts a diaphragm-type air pressure tank. When the water pressure is greater than the air pressure inside the pressure-stabilizing tank 49, the diaphragm inside the pressure-stabilizing tank 49 is pushed up and the gas is compressed, thereby reducing the water pressure. When the external water pressure is less than the air pressure inside the pressure-stabilizing tank 49, the diaphragm is pressed down by the gas, thereby increasing the water pressure and compensating for the water pressure fluctuations in the pipeline.

[0066] A second pressure sensor 42 is provided above the water supply main pipe 41 , and the second pressure sensor 42 is connected to the control device 5 via a wire.

[0067] The second pressure sensor 42 is used to detect the internal pressure of the water supply main 41, that is, the water pressure at the user end.

[0068] The control device 5 includes a control box 51 , in which a control module is provided. The control module is used to control the operation of the water supply motor 31 . A display device 52 is provided on the front side of the control box 51 . The display device 52 is used to display the working status of the water supply motor 31 .

[0069] The control box 51 is fixedly mounted on the top of the water supply motor 31 by bolts. The display device 52 adopts a touch display screen.

[0070] The control module includes a data receiving module 53 , which is connected to the first pressure sensor 22 , the water inlet pressure sensor 33 , the water outlet pressure sensor 34 and the second pressure sensor 42 via wires.

[0071] The data receiving module 53 is used to receive relevant water pressure data detected by the first pressure sensor 22 , the water inlet pressure sensor 33 , the water outlet pressure sensor 34 and the second pressure sensor 42 .

[0072] The data receiving module 53 is connected to the data processing module 54 and the encoder 58 via wires. The data processing module 54 is connected to the controller 59 . The display device 52 is connected to the data processing module 54 .

[0073] The data processing module 54 is used to process the relevant pressure data received by the data receiving module 53. After calculation, the results are transmitted to the controller 59 and the display device 52. The display device 52 can display the relevant data. The controller 59 is used to control the water supply motor 31, and the encoder 58 is used to detect the working condition of the water supply motor 31.

[0074] The data processing module 54 is also connected to a data storage module 57 .

[0075] The data storage module 57 is used to store the unit operating data, so that the staff can check the historical operating status of the unit.

[0076] The data storage module 57 is connected to the network module 55 via the data encryption module 56 , and the network module 55 is connected to external devices via a network.

[0077] The data encryption module 56 is used to encrypt data, and the network module 55 is used to transmit the encrypted data to external devices via the network. External devices include but are not limited to mobile phones, computers, and other water supply motors 31. Mobile phones and computers can check the operating status of the water supply motor 31 through the network module 55.

[0078] The data transmission between the control devices 5 can form an Internet of Things and realize data sharing.

[0079] The network module 55 is also connected to the controller 59 , and the external device can transmit the control command to the network module 55 through the network, and then transmit it to the controller 59 through the network module 55 .

[0080] The mobile phone and computer can transmit commands to the controller 59 through the network module 55 to adjust the working state of the water supply motor 31 and realize remote control.

[0081] When the operator of this embodiment uses this equipment, when the pressure value detected by the second pressure sensor 42 is lower than the set value, the controller 59 will check the values ​​of the water inlet pressure sensor 33 and the drainage pressure sensor 34. The difference in the data detected by the water inlet pressure sensor 33 and the drainage pressure sensor 34 is the output pressure of the graded water pump 32. Through this value, it can be determined whether the graded water pump 32 is operating at full power.

[0082] If the graded water pump 32 is not running at full power, the controller 59 will control the water supply motor 31 to increase its speed, thereby increasing the pressure in the water supply main 41 .

[0083] If the graded water pump 32 is already running at full power, the data processing module 54 will transmit this data to other control devices 5 through the network module 55 to control the idle or underpowered water supply motor 31 to operate, thereby increasing the pressure in the water supply main 41.

[0084] When the pressure value detected by the second pressure sensor 42 is higher than the set value and the customer's water consumption decreases, the controller 59 will control the water supply motor 31 to reduce the rotation speed, thereby reducing the water outlet pressure of the graded water pump 32, and further reducing the pressure in the water supply main 41.

[0085] A direct drive servo control of the water supply motor 31 is achieved to ensure a constant water supply pressure throughout the building and save electricity.

[0086] The staff can also view the running status of the water supply motor 31 in real time through mobile phones, computers and other devices, and can remotely control the operation of the water supply motor 31.

[0087] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. Energy-saving servo direct-drive secondary water supply unit, characterized in that: include: A water pump assembly (3), wherein a frame (1) is provided below the water pump assembly (3), and the frame (1) is fixedly mounted on the bottom surface and is used to support the water pump assembly (3), and a primary water supply assembly (2) and a secondary water supply assembly (4) are provided on the front and rear sides of the water pump assembly (3), respectively; The primary water supply assembly (2) comprises a water inlet main pipe (21), the water inlet main pipe (21) is used to be connected to the municipal pipe network, a plurality of water branch pipes (24) are arranged on the water inlet main pipe (21), and the water branch pipes (24) are connected to the water pump assembly (4) via a first butterfly valve (25); The water pump assembly (3) comprises a water supply motor (31), the shaft of the water supply motor (31) is connected to a graded water pump (32), the water inlet of the graded water pump (32) is connected to a first butterfly valve (25), and a control device (5) is provided at the top of the water supply motor (31); The secondary water supply assembly (4) comprises a water supply main pipe (41), the water supply main pipe (41) is used to connect to the user pipe network, the water supply main pipe (41) is provided with a plurality of manifolds (44) and one manifold, the manifold (44) is connected to the water outlet of the grading water pump (32) through a valve assembly, and the bypass pipe (47) is connected to a pressure stabilizing tank (49) through a third butterfly valve (48); The control device (5) comprises a control box (51), wherein a control module is arranged inside the control box (51), and the control module is used to control the operation of the water supply motor (31). A display device (52) is arranged on the front side of the control box (51), and the display device (52) is used to display the working status of the water supply motor (31).

2. The energy-saving servo direct-drive secondary water supply unit according to claim 1, characterized in that: A first pressure sensor (22) is provided at the end of the water inlet main pipe (21), and the first pressure sensor (22) is used to detect the water pressure in the water inlet main pipe (21). The water inlet pressure gauge (23) is connected to the control device (5) via a wire.

3. The energy-saving servo direct-drive secondary water supply unit according to claim 2, characterized in that: A water inlet pressure sensor (33) is provided at the water inlet of the grading water pump (32). The water inlet pressure sensor (33) is used to detect the water inlet pressure of the grading water pump (32). The water inlet pressure sensor (33) is connected to the control device (5) via a wire.

4. The energy-saving servo direct-drive secondary water supply unit according to claim 3, characterized in that: A drainage pressure sensor (34) is provided at the water outlet of the grading water pump (32). The drainage pressure sensor (34) is used to detect the water outlet pressure of the grading water pump (32). The drainage pressure sensor (34) is connected to the control device (5) via a wire.

5. The energy-saving servo direct-drive secondary water supply unit according to claim 4, characterized in that: A second pressure sensor (42) is provided above the water supply main pipe (41). The second pressure sensor (42) is used to detect the internal pressure of the water supply main pipe (41). The second pressure sensor (42) is connected to the control device (5) via a wire.

6. The energy-saving servo direct-drive secondary water supply unit according to claim 5, characterized in that: The control module comprises a data receiving module (53), and the data receiving module (53) is connected to a first pressure sensor (22), a water inlet pressure sensor (33), a water discharge pressure sensor (34), and a second pressure sensor (42) via wires.

7. The energy-saving servo direct-drive secondary water supply unit according to claim 6, characterized in that: The data receiving module (53) is connected to a data processing module (54) and an encoder (58); the data processing module (54) is connected to a controller (59); the controller (59) is used to control the water supply motor (31); the encoder (58) is used to detect the working condition of the water supply motor (31); and the display device (52) is connected to the data processing module (54).

8. The energy-saving servo direct-drive secondary water supply unit according to claim 7, characterized in that: The data processing module (54) is also connected to a data storage module (57), and the data storage module (57) is used to store unit operating condition data.

9. The energy-saving servo direct-drive secondary water supply unit according to claim 8, characterized in that: The data storage module (57) is connected to a network module (55) via a data encryption module (56); the network module (55) is connected to an external device via a network; the data encryption module (56) is used to encrypt data; and the network module (55) is used to transmit the encrypted data to the external device via the network.

10. The energy-saving servo direct-drive secondary water supply unit according to claim 9, characterized in that: The network module (55) is also connected to the controller (59), and the external device can transmit the control command to the network module (55) through the network, and then transmit it to the controller (59) through the network module (55).

Images