Municipal tap water non-negative pressure pipe network pressurization water supply device

Abstract

The invention discloses a municipal tap water non-negative pressure pipe network pressurization water supply device, and relates to the technical field of pipe network pressurization water supply. The device comprises two non-negative-pressure steady-flow compensation tanks, a variable-frequency booster pump set, a steady-pressure tank, a drainage pipe system, a water inlet pipe system and a control cabinet, the two non-negative-pressure steady-flow compensation tanks are arranged in the water inlet pipe system in parallel, and a blow-off pipe is arranged at the bottom of each non-negative-pressure steady-flow compensation tank. Through the parallel design of the two non-negative pressure steady flow compensation tanks and the cooperation of the circulating cleaning assembly, alternate online cleaning is achieved, when one tank is cleaned, the other tank continuously supplies water, and it is ensured that the system continuously operates; the independent high-pressure spray head drives a gear set through a motor to achieve circumferential rotary spraying, the design of temperature control clean water and backflow prevention of a one-way valve is matched, dead-corner-free cleaning is completed under the condition of not depending on municipal water pressure, meanwhile, a control cabinet intelligently regulates and controls an electromagnetic valve to switch the cleaning state and the water supply state, and the problem that traditional equipment must be shut down for cleaning is thoroughly solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipe network pressurized water supply, in particular to a municipal tap water non-negative pressure pipe network pressurized water supply device. BACKGROUND

[0002] The non-negative pressure water supply equipment is usually composed of a steady flow compensation tank, a water inlet main pipe, a water outlet main pipe and a water outlet pipeline, the high position of the steady flow compensation tank is provided with a water inlet port connected with the municipal pipe network, and the low position of the steady flow compensation tank is provided with a water outlet port, the steady flow compensation tank of the existing non-negative pressure water supply equipment is inconvenient to clean, and the functionality of the product needs to be further improved.

[0003] The prior art such as application number "201520940916.5" discloses a cleaning device installed in the steady flow compensation tank of the non-negative pressure water supply equipment, the above technical solution sets the cleaning time through the time controller of the control system, closes the water inlet port of the steady flow compensation tank through the closing module, opens the first electromagnetic valve, drives the rotary cleaning device through the municipal pipe network water source and pressure, the cleaning device is a 360° rotary cleaning device, can clean omnidirectionally without dead angle, after cleaning, the control system opens the second electromagnetic valve to discharge sewage, the whole cleaning process is automatic and unattended, and cost is saved.

[0004] However, in the actual use process, when the above technical solution is cleaned, the water inlet port of the steady flow compensation tank needs to be closed, and the rotary cleaning device is driven by the municipal pipe network water source. This means that the steady flow compensation tank cannot normally supply water during cleaning, resulting in temporary interruption of the water supply system. For scenes that require 24-hour uninterrupted water supply (such as hospitals, data centers, etc.), this shutdown cleaning method will affect the normal water demand, and may even cause safety hazards. In addition, the rotary cleaning device is driven by the municipal water pressure, but the municipal water pressure may fluctuate, resulting in unstable cleaning pressure and affecting the cleaning effect. If the municipal water pressure is insufficient, the rotation speed of the cleaning device may be reduced, and the tank deposits, especially stubborn scale, cannot be completely removed.

[0005] Therefore, a municipal tap water non-negative pressure pipe network pressurized water supply device is provided. SUMMARY

[0006] To solve the problems existing in the prior art, the present application provides a municipal tap water non-negative pressure pipe network pressurized water supply device.

[0007] The present application specifically adopts the following technical solutions to achieve the above-mentioned purposes: A municipal tap water non-negative pressure pipe network pressurized water supply device, comprising a non-negative pressure steady flow compensation tank, a variable frequency pressurizing pump group, a pressure stabilizing tank, a drainage pipe system, a water inlet pipe system and a control cabinet: The number of the non-negative pressure stable flow compensation tanks is two, which are arranged in parallel in the water inlet pipe system, a sewage pipe is arranged at the bottom of each non-negative pressure stable flow compensation tank, and a sewage valve is arranged on the sewage pipe. The circulating cleaning assembly is further arranged for alternately cleaning the two non-negative pressure stable flow compensation tanks, and the cleaning is performed without stopping the machine. The circulating cleaning assembly comprises a clean water tank, a water pump and a rotating water spraying mechanism connected to the inside of the non-negative pressure stable flow compensation tank, and the rotating water spraying mechanism is driven by a driving assembly to realize circumferential spraying cleaning.

[0008] Further, a temperature sensor and a heating rod are arranged on the clean water tank to heat the cleaning water and monitor the water temperature, and a heat preservation layer is arranged on the outer wall of the clean water tank to reduce heat loss and maintain the temperature of the cleaning water.

[0009] Further, the rotating water spraying mechanism comprises a connecting plate fixed to one side of the non-negative pressure stable flow compensation tank, a cleaning pipe rotatably arranged on the connecting plate, and a plurality of high-pressure nozzles arranged along the cleaning pipe.

[0010] Further, the driving assembly comprises a motor and a first gear and a second gear which are engaged with each other, the first gear is connected to the main shaft end of the motor, the second gear is sleeved on the cleaning pipe, and the first gear and the second gear constitute a gear transmission mechanism, and the gear transmission mechanism transmits the power of the motor to the cleaning pipe to drive the rotation of the cleaning pipe.

[0011] Further, the outlet end of the water pump is connected to a three-way pipe, two branches of the three-way pipe are connected to the two cleaning pipes through first connecting pipes respectively, and a first electromagnetic valve is arranged on each first connecting pipe.

[0012] Further, each non-negative pressure stable flow compensation tank is connected to the water inlet pipe system through a second connecting pipe, and a second electromagnetic valve is arranged on the second connecting pipe.

[0013] Further, a one-way valve is arranged on the cleaning pipe to prevent backflow of water, and the first connecting pipe and the cleaning pipe are rotatably connected.

[0014] Further, the length of the cleaning pipe is matched with the length of the internal cavity of the non-negative pressure stable flow compensation tank, so that the high-pressure nozzles on the cleaning pipe can cover the entire inner wall area of the non-negative pressure stable flow compensation tank, and the cleaning without dead angle is ensured.

[0015] The beneficial effects of the present application are as follows: The application realizes alternate online cleaning by parallel design of double non-negative pressure flow compensation tanks, cooperation of a circulating cleaning assembly (including a clean water tank, a water pump and a gear-driven rotating water spraying mechanism), ensures uninterrupted operation of the system when one tank is cleaned and the other tank continuously supplies water, realizes circumferential rotation spraying of the independent high-pressure nozzle through the motor-driven gear set (first gear / second gear), cooperation of the temperature-controlled cleaning water (heating rod) and the one-way valve anti-backflow design, completes the dead angle-free cleaning without relying on the municipal water pressure, and at the same time, the intelligent control cabinet intelligently controls the electromagnetic valve (first electromagnetic valve / second electromagnetic valve) to switch the cleaning and water supply state, completely solves the pain point that the traditional equipment must be stopped for cleaning. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is one of the three-dimensional structure schematic diagrams of the application; Figure 2 is the second three-dimensional structure schematic diagram of the application; Figure 3 is the third three-dimensional structure schematic diagram of the application; Figure 4 is the circulating cleaning assembly structure schematic diagram of the application; Figure 5 is the first connecting pipe and driving member split structure schematic diagram of the application; Figure 6 is the A part enlarged structure schematic diagram of the application.

[0017] Fig. 1, non-negative pressure flow compensation tank; 2, variable frequency booster pump set; 3, pressure stabilizing tank; 4, drainage pipe system; 5, water inlet pipe system; 6, control cabinet; 7, temperature sensor; 8, circulating cleaning assembly; 801, clean water tank; 802, water pump; 803, three-way pipe; 804, first connecting pipe; 805, first electromagnetic valve; 806, connecting plate; 807, cleaning pipe; 808, high-pressure nozzle; 809, motor; 810, first gear; 811, second gear; 812, one-way valve; 9, second connecting pipe; 901, second electromagnetic valve; 10, heating rod. DETAILED DESCRIPTION

[0018] To make the purpose, technical scheme and advantages of the embodiments of the application clearer, the technical scheme in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are part of the embodiments of the application, rather than all the embodiments. The components of the embodiments of the application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the application claimed, but merely represents selected embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the application.

[0020] It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the embodiments of the application, it should be noted that the terms "inner", "outer", "upper", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed, only for the convenience of describing the application and simplifying the description, and cannot be understood as indicating or implying that the device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the application.

[0022] As shown in Figures 1-6 A kind of municipal tap water non-negative pressure pipe network pressurized water supply device, including non-negative pressure steady flow compensation tank 1, variable frequency booster pump group 2, pressure tank 3, drain pipe system 4, water inlet pipe system 5 and control cabinet 6: The number of non-negative pressure steady flow compensation tank 1 is two, and is connected in parallel in water inlet pipe system 5, the bottom of each non-negative pressure steady flow compensation tank 1 is equipped with drain pipe, drain valve is installed on drain pipe, when one of non-negative pressure steady flow compensation tank 1 needs to be cleaned or maintained, another non-negative pressure steady flow compensation tank 1 still can work normally, ensure the continuity of water supply system, the operation of entire water supply system will not be influenced due to the inactivation of single non-negative pressure steady flow compensation tank 1, drain valve and circulating cleaning component 8 are electrically connected with control cabinet 6, when one of non-negative pressure steady flow compensation tank 1 is cleaned, corresponding drain valve is opened to drain, another drain valve is closed; It further includes circulating cleaning component 8, for alternating on-line cleaning of two non-negative pressure steady flow compensation tanks 1, without shutdown during cleaning; The circulating cleaning assembly 8 comprises a clean water tank 801, a water suction pump 802, and a rotating water spraying mechanism connected to the inside of the non-negative pressure flow compensation tank 1. The rotating water spraying mechanism realizes circumferential jet cleaning through a driving assembly. Specifically, the structure design enables the cleaning water to be sprayed to the inner wall of the compensation tank 1 at a certain pressure and angle through the high-pressure spray head 808, so as to realize the flushing and cleaning of the inner wall of the compensation tank 1. The rotatability of the cleaning pipe 807, in cooperation with the driving assembly, can enable the spray head to perform circumferential jet in the compensation tank 1, expand the cleaning range, improve the cleaning efficiency, and ensure that the inner wall of the compensation tank 1 is cleaned without dead angle. The inside of the clean water tank 801 can be provided with a liquid level sensor or a transparent window, so as to facilitate the observation of the water level inside. The liquid level sensor and the alarm are used in linkage. When the liquid level sensor detects that the liquid level is too low, a signal will be sent to the control cabinet 6, and the control cabinet 6 will control the alarm to sound, reminding the staff to add water in time.

[0023] As shown in Figure 4 , the clean water tank 801 is provided with a temperature sensor 7 and a heating rod 10 for heating and monitoring the water temperature. The outer wall of the clean water tank 801 is provided with a heat preservation layer for reducing heat loss and maintaining the temperature of the cleaning water. Specifically, the temperature sensor 7 and the heating rod 10 provided thereon can heat and monitor the cleaning water, so as to ensure that the cleaning water is within a suitable temperature range and improve the cleaning effect. The heat preservation layer of the outer wall can reduce heat loss, maintain the temperature of the cleaning water, and reduce energy consumption.

[0024] As shown in Figures 4-6 , the rotating water spraying mechanism comprises a connecting plate 806 fixed to one side of the non-negative pressure flow compensation tank 1, a cleaning pipe 807 rotatably installed on the connecting plate 806, and a plurality of high-pressure spray heads 808 arranged along the cleaning pipe 807. Specifically, the connecting plate 806 can be fixed on the non-negative pressure flow compensation tank 1 by bolts or other means, so as to facilitate the disassembly and assembly of the circulating cleaning assembly 8.

[0025] As shown in Figure 6 , the driving assembly comprises a motor 809 and first and second gears 810 and 811 that are engaged with each other. The first gear 810 is connected to the main shaft end of the motor 809, and the second gear 811 is sleeved on the cleaning pipe 807. The first and second gears 810 and 811 constitute a gear transmission mechanism. The gear transmission mechanism transmits the power of the motor 809 to the cleaning pipe 807 to drive it to rotate. Specifically, the motor 809 transmits power to the cleaning pipe 807 through the gear transmission mechanism (the first and second gears 810 and 811 are engaged with each other), drives the cleaning pipe 807 to rotate, and further drives the high-pressure spray head 808 to rotate along the axial direction, so as to realize high-pressure flushing and cleaning of the inner wall of the compensation tank 1. The rotation speed and direction of the motor 809 can be adjusted according to the cleaning requirements to achieve the best cleaning effect.

[0026] As Figures 4-5 shown, the outlet end of the water pump 802 is connected to the three-way pipe 803, and the two branches of the three-way pipe 803 are connected to two cleaning pipes 807 through the first connecting pipes 804 respectively, and a first electromagnetic valve 805 is arranged on each first connecting pipe 804; Specifically, the water pump 802 pumps the cleaning water in the clean water tank 801 out and distributes it to the two cleaning pipes 807 through the three-way pipe 803, and the two branches of the three-way pipe 803 are connected to the two cleaning pipes 807 respectively, and a first electromagnetic valve 805 is arranged on each first connecting pipe 804, and by controlling the opening and closing of the first electromagnetic valve 805, independent control of the cleaning water of the two non-negative pressure stable flow compensation tanks 1 can be realized, so that the circulating cleaning assembly 8 can alternately clean the two non-negative pressure stable flow compensation tanks 1 without stopping, thereby improving the operation efficiency and cleaning flexibility of the water supply device.

[0027] As Figure 3 shown, each non-negative pressure stable flow compensation tank 1 is communicated with the water inlet pipe system 5 through the second connecting pipe 9, and a second electromagnetic valve 901 is arranged on the second connecting pipe 9; Specifically, each non-negative pressure stable flow compensation tank 1 is communicated with the water inlet pipe system 5 through the second connecting pipe 9, and a second electromagnetic valve 901 is arranged on the second connecting pipe 9, and the function of the second electromagnetic valve 901 is to cut off the communication between the non-negative pressure stable flow compensation tank 1 and the water inlet pipe system 5 when cleaning the compensation tank 1, to prevent cleaning water from entering the water inlet pipe system 5, and also to ensure normal water supply when the non-negative pressure stable flow compensation tank 1 is working normally. By reasonably controlling the opening and closing of the second electromagnetic valve 901, the switching of the non-negative pressure stable flow compensation tank 1 between the cleaning and normal water supply states can be realized.

[0028] As Figures 5-6 shown, a one-way valve 812 is arranged on the cleaning pipe 807 to prevent backflow of water, and the first connecting pipe 804 and the cleaning pipe 807 are rotatably connected; Specifically, the one-way valve 812 arranged on the cleaning pipe 807 can prevent backflow of water, ensuring that the cleaning water can only flow from the cleaning pipe 807 to the compensation tank 1, avoiding backflow of water during cleaning, affecting the cleaning effect and normal operation of the water supply system, and the rotatable connection between the first connecting pipe 804 and the cleaning pipe 807 ensures that the first connecting pipe 804 will not be damaged due to twisting during the rotation of the cleaning pipe 807, and also ensures stable delivery of the cleaning water, so that the rotating water spraying mechanism can work normally.

[0029] As Figure 4As shown, the length of the cleaning pipe 807 is matched with the length of the internal cavity of the non-negative pressure flow stabilizing compensation tank 1, so that the high-pressure spray head 808 on the cleaning pipe 807 can cover the entire inner wall area of the non-negative pressure flow stabilizing compensation tank 1, ensuring no dead angle cleaning; Specifically, this design ensures that every part of the inner wall of the non-negative pressure flow stabilizing compensation tank 1 can be sprayed by the spray head, achieving no dead angle cleaning, improving the thoroughness of cleaning, and ensuring the water quality and cleanliness of the compensation tank 1.

[0030] In summary: 1. Dual-tank redundant water supply system Two parallelly arranged non-negative pressure flow stabilizing compensation tanks 1 are connected with the water inlet pipe system 5 through the second connecting pipe 9 (equipped with the second electromagnetic valve 901), forming a redundant structure. When any non-negative pressure flow stabilizing compensation tank 1 needs to be cleaned, the control cabinet 6 closes the corresponding second electromagnetic valve 901 and opens the sewage valve, and the other non-negative pressure flow stabilizing compensation tank 1 maintains normal water supply, ensuring zero interruption of the system. The sewage valve is linked with the circulating cleaning assembly 8, and only the sewage valve of the target non-negative pressure flow stabilizing compensation tank 1 is opened during sewage discharge, avoiding cross contamination.

[0031] 2. Modular design of the circulating cleaning assembly 8 Cleaning water supply unit: The clean water tank 801 integrates a temperature sensor 7 and a heating rod 10, cooperates with a heat preservation layer to maintain the temperature of the cleaning water (improves the decontamination effect and can achieve high-temperature disinfection and sterilization), and a liquid level sensor triggers a low water level alarm and links with the control cabinet 6 to remind water replenishment. The water temperature is set on the control cabinet 6 to ensure the consistency of the water temperature of the sprayed water. The temperature sensor 7 can control the water temperature in the clean water tank 801. When the water temperature is lower than the set value, the heating rod 10 works to heat the water. Power transmission unit: The water pump 802 divides the heated cleaning water into two first connecting pipes 804 (each with a first electromagnetic valve 805) through the three-way pipe 803, and realizes precise switching of the cleaning water sources of the two tanks by independently controlling the first electromagnetic valve 805. Rotary injection unit: The cleaning pipe 807 is fixed to the side wall of the compensation tank 1 through the connecting plate 806, and the rotation of the high-pressure spray head 808 in the cleaning pipe 807 is realized by the gear transmission mechanism (the first gear 810 engages with the second gear 811) driven by the motor 809. The check valve 812 prevents backflow of sewage, and the rotationally connected first connecting pipe 804 ensures that the pipe is not twisted during rotation. 3. No dead angle cleaning mechanism The length of the cleaning pipe 807 matches the cavity of the compensation tank 1, and the circumferential rotation of the high-pressure spray head 808 covers the entire inner wall of the tank body, realizing efficient stripping of sediments. During cleaning, the control cabinet 6 synchronously closes the second electromagnetic valve 901 of the target non-negative pressure flow stabilizing compensation tank 1 (isolates the water inlet pipe system 5), opens the corresponding first electromagnetic valve 805 and sewage valve, forms a "spray sewage" closed loop process, and the sewage is directly discharged from the tank body. 4. Intelligent control system integration The control cabinet 6 as the hub, real-time receiving temperature sensor 7, liquid level sensor signal, coordinate the first electromagnetic valve 805, the second electromagnetic valve 901, motor 809 and the operation of heating rod 10: According to the preset period or water quality data to start the alternating cleaning mode, through the three-way pipe 803 and the first electromagnetic valve 805 to switch the cleaning target tank; Adjust the power of the heating rod 10 to keep the water temperature in the optimal cleaning interval, and the heat preservation layer reduces heat loss; Monitoring the state of the blowdown valve to ensure that the cleaning and water supply states do not interfere with each other. The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above examples, and the above examples and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements fall within the scope of the claimed present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A kind of municipal tap water non-pressure pipe network pressurized water supply device, including non-pressure steady flow compensation tank (1), variable frequency booster pump group (2), pressure tank (3), drain pipe system (4), water inlet pipe system (5) and control cabinet (6), it is characterized in that: The number of the non-pressure steady flow compensation tank (1) is two, and is connected in parallel in water inlet pipe system (5), the bottom of each non-pressure steady flow compensation tank (1) is equipped with drain pipe, drain valve is installed on the drain pipe; It further includes circulating cleaning assembly (8), for the alternate on-line cleaning of two non-pressure steady flow compensation tanks (1), without stopping during cleaning; The circulating cleaning assembly (8) includes clean water tank (801), water pump (802) and rotating water spraying mechanism connected to the inside of non-pressure steady flow compensation tank (1), the rotating water spraying mechanism is realized circumferential injection cleaning by drive assembly.

2. The self-priming water supply device for municipal water supply without negative pressure in the pipeline network according to claim 1, characterized in that, Temperature sensor (7) and heating rod (10) are provided on the clean water tank (801), for heating cleaning water and monitoring water temperature, the outer wall of the clean water tank (801) is provided with heat preservation layer, for reducing heat loss and maintaining the temperature of cleaning water.

3. The self-priming water supply device for municipal water supply without negative pressure in the pipeline network according to claim 1, characterized in that, The rotating water spraying mechanism includes connecting plate (806) fixed to one side of non-pressure steady flow compensation tank (1), cleaning pipe (807) rotatably installed on connecting plate (806), and a plurality of high-pressure nozzles (808) arranged along cleaning pipe (807).

4. The self-priming water supply device for municipal water supply without negative pressure in the pipeline network according to claim 3, characterized in that, The drive assembly includes motor (809) and first gear (810) and second gear (811) engaged with each other, the first gear (810) is connected with the main shaft end of motor (809), the second gear (811) is sleeved on the cleaning pipe (807), the first gear (810) and the second gear (811) constitute a gear transmission mechanism, the gear transmission mechanism transmits the power of motor (809) to the cleaning pipe (807) to drive it to rotate.

5. The self-priming water supply device for municipal water supply without negative pressure in the pipeline network according to claim 4, characterized in that, The outlet end of the water pump (802) is connected to the tee pipe (803), two branches of the tee pipe (803) are connected to two cleaning pipes (807) through first connecting pipes (804) respectively, and a first electromagnetic valve (805) is arranged on each first connecting pipe (804).

6. The self-priming water supply device for municipal water supply without pressure in the pipeline network according to claim 1, characterized in that, Each non-pressure steady flow compensation tank (1) is communicated with water inlet pipe system (5) through second connecting pipe (9), and a second electromagnetic valve (901) is arranged on the second connecting pipe (9).

7. The self-priming water supply device of claim 5, wherein the water supply device is a municipal water supply device. One-way valve (812) is arranged on the cleaning pipe (807), to prevent water flow from flowing back, and the first connecting pipe (804) and the cleaning pipe (807) are rotatably connected.

8. The self-priming water supply device of claim 3, wherein the water supply device is a municipal water supply device. The length of the cleaning pipe (807) is matched with the length of the internal cavity of the non-pressure steady flow compensation tank (1), so that the high-pressure nozzles (808) on the cleaning pipe (807) can cover the entire inner wall area of the non-pressure steady flow compensation tank (1), ensuring no dead angle cleaning.

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