CN115822039A - Novel safe and reliable high-rise building water supply system - Google Patents
Novel safe and reliable high-rise building water supply system Download PDFInfo
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- CN115822039A CN115822039A CN202310030756.XA CN202310030756A CN115822039A CN 115822039 A CN115822039 A CN 115822039A CN 202310030756 A CN202310030756 A CN 202310030756A CN 115822039 A CN115822039 A CN 115822039A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
Abstract
The invention discloses a novel safe and reliable high-rise building water supply system which comprises a water supply module and an intelligent control module, wherein the water supply module comprises a water storage tank and a water pump unit, and the intelligent control module comprises a PLC (programmable logic controller) control module, a flow measurement module and a pressure measurement module. A liquid level sensor is arranged in the water storage tank to detect the water level of the water storage tank in real time, so that the liquid level of the water storage tank is ensured to be above the threshold value of the water storage tank. Set up terminal pressure measurement device and first end flow measurement device, the actual demand of flow lift of real-time supervision record building controls the converter and changes the motor output frequency of water pump, ensures the constant voltage water supply. The PLC control module uses an intelligent main and auxiliary control technology, an intelligent main and auxiliary system and main and auxiliary flow and pressure sensors are in linkage control, and hot standby redundancy is achieved. The invention solves the problems of unstable water supply pressure and secondary pollution of high-rise buildings, avoids overhigh control risk of a single system and realizes self fault diagnosis.
Description
Technical Field
The invention belongs to the field of building water supply, and particularly relates to a novel safe and reliable high-rise building water supply system which can intelligently optimize and adjust according to real-time monitoring actual demands and can perform fault diagnosis, emergency early warning and intelligent accident handling.
Background
With the continuous development of the modern society, the phenomena of increasing shortage of land resources and sudden increase of the number of high-rise residences become a normal state. As building houses have become high, it has also made it difficult to supply water to buildings. Because the residents of the high-rise residential building are centralized and have large water consumption, the daily water consumption of the residents can be guaranteed only by adopting secondary water supply facilities. In view of the current problems of various types of secondary water supply equipment and the current situation of urban secondary water supply, selecting a secondary water supply mode with good stability and economy is an urgent issue to be solved by related enterprises.
In general, the water supply modes include municipal direct water supply, reservoir water supply, secondary booster pump water supply and constant pressure water supply. However, the municipal direct water supply and reservoir water supply mode is generally only suitable for floors below the height of six floors, and the floors above seven floors are easy to have insufficient pressure supply, so that the normal life and use conditions of high floors are influenced. The water supply mode of the reservoir needs to establish a special reservoir, occupies land, easily causes secondary pollution and has high cost. If the water supply mode is provided with the secondary booster pump, the water supply mode has the defects of high power consumption, high cost, easy formation of large water pressure impact on a low-rise floor, unstable pressure, easy burst of a water pipe or easy damage of a faucet, easy occurrence of uncomfortable feeling of water strength ejection when residents use water, and the like. The building constant-pressure water supply system can not only save energy, but also supply water constantly and stably, and has the advantages of small failure rate, high water supply efficiency, good quality, intelligence and controllability.
Disclosure of Invention
In order to solve the problems, the invention provides a novel safe and reliable high-rise building water supply system which is provided with a terminal pressure measuring device and a primary flow measuring device, monitors and records the actual demand of the flow lift of a building in real time, controls a frequency converter through an intelligent variable-voltage control technology and guarantees constant-pressure water supply. Meanwhile, the system is provided with a self-fault diagnosis and emergency early warning monitoring device for intelligent accident handling. The invention is mainly applied to water supply of high-rise buildings to solve the problems of unstable water supply pressure, pressure fluctuation in peak water using period and low water using period, secondary pollution, high cost and the like.
The intelligent water supply system is composed of a water supply module and an intelligent control module.
The water supply module comprises a water storage tank and a water pump unit.
The intelligent control module comprises a PLC control module, a flow measurement module and a pressure measurement module.
The water storage tank is wholly sealed, a water inlet of the water storage tank is directly connected with a municipal pipe network for receiving and storing water, and the water storage tank is responsible for supplying water to the water pump unit and mainly ensures water for high-rise users.
Furthermore, a liquid level sensor is arranged in the water storage tank and used for detecting the water level of the water storage tank in real time, liquid level information is sent to the PLC control module through a liquid level transmitter, and the liquid level of the water storage tank is guaranteed to be kept above a threshold value of the water storage tank through control of the PLC control module.
Furthermore, the threshold value of the water storage tank is set according to the actual demand of the water consumption of a user, and is intelligently changed aiming at different periods such as a peak water consumption period and a low water consumption period.
The water pump unit consists of four water pumps, wherein three of the water pumps are used as actual working pumps, and one of the water pumps is used as a standby pump for emergency replacement when the water pumps are in failure.
Furthermore, two or more groups of water pump units can be built according to different actual floor heights, so that the partitioned water supply is realized.
Furthermore, the four water pumps are respectively provided with a frequency converter, the output frequency of the motor of the three actually-working water pumps is changed through the frequency converter, so that the rotating speed of the motor is adjusted, the rotation of the working water pumps is controlled, the uninterrupted intelligent change from the full-power operation of the three actually-working water pumps to the full-power operation of the water pumps is realized in different water consumption periods, and the constant-pressure water supply is realized in different water consumption conditions.
The flow measurement module is installed at the initial end of a building water supply network, namely the outlet end of a water pump unit, and is used for measuring the initial end flow of the building water supply network in real time by a main (standby) flow sensor, and transmitting a measured flow signal to a PLC (programmable logic controller) control module through a flow transmitter, monitoring the water consumption of a user in real time, and switching to the operation of a standby flow sensor when the main flow sensor fails.
The pressure measurement module is installed at a building water supply network terminal, namely a user end, and is used for measuring the pressure of the building water supply network terminal in real time by a main (standby) pressure sensor, and transmitting a measured pressure signal to the PLC control module through a pressure transmitter, so that the user lift demand is monitored in real time, and the operation can be switched to a standby pressure sensor when the main pressure sensor fails.
Furthermore, the PLC control module receives a flow signal and a terminal pressure signal at the initial end of the building water supply network, obtains required operation pressure by intelligently adjusting transformation gradient, calibration deviation and the like according to flow change and actual lift requirements, simulates a field operation curve, evaluates flow size in real time and performs transformation operation.
Furthermore, according to the simulated field operation curve, the actual water consumption is intelligently estimated in real time, and the threshold value of the water storage tank is correspondingly set.
Furthermore, according to the simulated field operation curve, the output power of the frequency converter is controlled, the rotating speed of the water pump is adjusted, and constant-pressure water supply is realized.
Furthermore, the PLC control module carries out intelligent evaluation on feedback information of the flow sensor and the pressure sensor, and carries out fault diagnosis on the building water supply pipe network: if the measuring instrument is damaged, switching to a standby instrument; if the water pump generates cavitation, the frequency converter is controlled to adjust the power control flow of the water pump; and if the water pipe leaks, feeding back to the corresponding maintenance company.
Furthermore, the PLC control module uses an intelligent main and auxiliary control technology, an intelligent main and auxiliary system is in linkage control with the main and auxiliary flow sensors and the main and auxiliary pressure sensors, hot standby redundancy is achieved, and when a main system of the PLC control module breaks down, the PLC control module is switched to an auxiliary system to operate.
The invention has the beneficial effects that: a terminal pressure measuring device and a primary end flow measuring device are arranged, the actual flow and lift requirements of the building are monitored and recorded in real time, and the frequency converter is controlled through an intelligent variable-voltage control technology to ensure constant-pressure water supply; when the main sensor fails, the flow sensor and the pressure sensor are switched to the standby sensor to operate; the control system realizes hot standby redundancy of the intelligent main and auxiliary systems, and can be instantly switched to the auxiliary system to operate when the main system fails, so that the problem of overhigh control risk of a single system is solved; the PLC control module intelligently evaluates feedback information of the flow sensor and the pressure sensor, diagnoses faults, emergently warns the faults and takes different intelligent accident handling measures.
Drawings
Fig. 1 is a schematic diagram of a novel safe and reliable building water supply mode.
Detailed Description
As shown in fig. 1, the present embodiment includes a water storage tank 1, a water pump unit 2, a main (standby) flow sensor 3, a main (standby) pressure sensor 4, a flow transmitter 5, a pressure transmitter 6, a frequency converter 7, a PLC control module 8, a motor 9, a liquid level transmitter 10, and a liquid level sensor 11.
The water supply mode of the embodiment is subarea water supply, and municipal direct water supply is carried out for low-level users (generally one to six layers). For high-rise users (more than seven floors), corresponding water pump units 2 are arranged in every six floors according to different specific building heights.
The embodiment consists of a water supply module and an intelligent control module.
The water supply module comprises a water storage tank 1 and a water pump unit 2.
The intelligent control module comprises a PLC control module 8, a flow measurement module and a pressure measurement module.
The water storage tank 1 is integrally sealed and is not in contact with impurities such as air, a water inlet of the water storage tank is directly butted with a municipal pipe network for receiving and storing water, and the water storage tank is responsible for supplying water to a water pump unit and mainly ensures water consumption of high-rise users.
The concrete water supply mode is that the PLC control module 8 passes through the pipe network flow signal of flow transmitter 5 transmission according to the flow that building water supply pipe network primary end was measured promptly water pump outlet owner (be equipped with) flow sensor 3 to and building water supply pipe network terminal pressure signal that pressure that building water supply pipe network end was measured promptly user end owner (be equipped with) pressure sensor 4 passes through pressure transmitter 6 transmission, according to flow variation and actual lift demand, through intelligent regulation vary voltage gradient, calibration deviation etc., the simulation scene operation curve, assess the flow size in real time, vary voltage operation.
Real-time intelligent optimization water storage tank 1's water level threshold value is monitored the liquid level by level sensor 11, feeds back in real time through liquid level changer 10, guarantees that the water storage tank liquid level keeps above the water storage tank threshold value. The threshold value of the water storage tank is set according to the actual demand of water consumption of a user, and is intelligently changed aiming at different periods such as a peak water consumption period and a low water consumption period, so that the secondary pollution of water resources caused by long-term water storage of the water storage tank is avoided, and the utilization rate of the water resources is improved.
Furthermore, according to the simulated field operation curve, the actual water consumption is intelligently estimated in real time, and the real-time threshold value of the water storage tank is correspondingly set
The water pump set 2 consists of four water pumps, the four water pumps are respectively provided with a frequency converter, and the PLC control module controls the output power of the water pump set 2 by intelligently adjusting the output power of the frequency converter 7 and controlling the rotating speed of the motor 9. Aiming at different water consumption periods, uninterrupted intelligent change from full closing of the water pumps to full-power operation of all three water pumps in actual work is realized, so that unstable water supply pressure, pressure fluctuation in a peak water consumption period and a low water consumption period are solved, constant-pressure water supply of buildings is ensured, and water supply efficiency is improved.
Furthermore, according to the simulation field operation curve, the PLC control module controls the output power of the frequency converter, adjusts the rotating speed of the water pump and realizes constant-pressure water supply.
Four water pumps of water pump set 2, three of them are as the actual work pump, and one is as the stand-by pump for emergent replacement uses when the water pump trouble, and according to actual floor height difference, can build two sets of or more water pump set, realize the subregion and supply water.
Flow measurement module installs at building water supply pipe network initial end promptly water pump unit exit end, by main (be equipped with) flow sensor 3 real-time measurement building water supply pipe network initial end flow to send measured flow signal 5 to PLC control module 8 through flow transmitter, real-time supervision user water consumption then can switch to reserve pressure sensor operation when the main flow sensor trouble.
The pressure measurement module is installed at building water supply network terminal promptly user end, is served by owner (be equipped with) pressure sensor 4 real-time measurement building water supply network terminal pressure to send measured pressure signal to PLC control module 8 through pressure transmitter 6, real-time supervision user lift demand, then can switch to reserve pressure sensor operation when main pressure sensor trouble.
The PLC control module 8 intelligently evaluates feedback information of the flow sensor 3 and the pressure sensor 4, carries out fault diagnosis on a building water supply network, sends out fault emergency early warning when abnormal change (sudden increase or sudden decrease) occurs to flow or lift measurement data, judges the fault reason through data analysis, and switches to a standby instrument if the measurement instrument is damaged; if the water pump generates cavitation, the frequency converter 7 is controlled to adjust the power control flow of the water pump 2; and if the water pipe leaks, feeding back to the corresponding maintenance company.
The PLC control module 8 uses an intelligent main and auxiliary control technology, an intelligent main and auxiliary system and a main and auxiliary flow and preparation pressure sensor are in linkage control, hot standby redundancy is achieved, when a main system of the PLC control module 8 breaks down, the main system can be switched to an auxiliary system to operate, and the problem that the single system control risk is too high is solved.
Claims (6)
1. The utility model provides a novel safe and reliable's high-rise building water supply system which characterized in that: the intelligent water supply system consists of a water supply module and an intelligent control module;
the water supply module comprises a water storage tank and a water pump unit;
the intelligent control module comprises a PLC control module, a flow measurement module and a pressure measurement module;
the water storage tank is integrally closed, and a water inlet of the water storage tank is directly butted with a municipal pipe network for receiving and storing water and is responsible for supplying water to the water pump unit;
a liquid level sensor is arranged in the water storage tank, liquid level information is sent to a PLC control module through a liquid level transmitter, and the liquid level of the water storage tank is controlled to be kept above a threshold value of the water storage tank through the PLC control module;
the water pumps in the water pump unit are respectively provided with a frequency converter, and the output frequency of a motor of the water pump is changed through the frequency converter, so that the rotating speed of the motor is adjusted, and the rotation of the working water pump is controlled;
the flow measurement module is arranged at the primary end of a building water supply pipe network, namely the outlet end of the water pump unit, the flow sensor is used for measuring the flow at the primary end of the building water supply pipe network in real time, and a measured flow signal is sent to the PLC control module through the flow transmitter, so that the water consumption of a user is monitored in real time;
the pressure measuring module is arranged at a building water supply network terminal, namely a user end, the pressure sensor is used for measuring the pressure of the building water supply network terminal in real time, and a measured pressure signal is transmitted to the PLC control module through the pressure transmitter, so that the lift requirement of a user is monitored in real time;
the PLC control module receives a flow signal and a terminal pressure signal at the primary end of a building water supply network, obtains required operation pressure by intelligently adjusting variable pressure gradient and calibrating deviation according to flow change and actual lift requirements, simulates a field operation curve, evaluates the flow size in real time and operates in a variable pressure mode;
according to the simulation field operation curve, the PLC control module intelligently evaluates the actual water consumption in real time and correspondingly sets the threshold value of the water storage tank;
and according to the simulated field operation curve, the PLC control module controls the output power of the frequency converter, adjusts the rotating speed of the water pump and realizes constant-pressure water supply.
2. The novel safe and reliable water supply system for high-rise buildings as claimed in claim 1, wherein: the threshold value of the water storage tank is set according to the actual demand of water consumption of a user, and is intelligently changed aiming at different periods of a peak water consumption period and a low water consumption period.
3. The novel safe and reliable water supply system for high-rise buildings as claimed in claim 1, wherein: the water pump unit consists of four water pumps, wherein three of the water pumps are used as actual working pumps, and one of the water pumps is used as a standby pump;
aiming at different water consumption periods, uninterrupted intelligent change from full closing of the water pumps to full-power operation of three actually-working water pumps is realized;
according to the difference of the actual floor height, two or more groups of water pump units are built to realize the regional water supply.
4. The novel safe and reliable water supply system for high-rise buildings as claimed in claim 1, wherein:
the flow sensor consists of a main flow sensor and a standby flow sensor, and when the main flow sensor fails, the standby flow sensor is switched to operate;
the pressure sensor consists of a main flow sensor and a standby flow sensor, and when the main pressure sensor fails, the standby pressure sensor is switched to operate.
5. The novel safe and reliable water supply system for high-rise buildings as claimed in claim 1, characterized in that: the PLC control module carries out intelligent evaluation on feedback information of the flow sensor and the pressure sensor, and carries out fault diagnosis on the building water supply pipe network: if the measuring instrument is damaged, switching to a standby instrument; if the water pump generates cavitation, the frequency converter is controlled to adjust the power control flow of the water pump; and if the water pipe leaks, feeding back to a maintenance company.
6. The novel safe and reliable water supply system for high-rise buildings as claimed in claim 1, wherein: the PLC control module uses an intelligent main and auxiliary control technology, and when a main system of the PLC control module breaks down, the PLC control module is switched to an auxiliary system to operate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310030756.XA CN115822039A (en) | 2023-01-10 | 2023-01-10 | Novel safe and reliable high-rise building water supply system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310030756.XA CN115822039A (en) | 2023-01-10 | 2023-01-10 | Novel safe and reliable high-rise building water supply system |
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| CN115822039A true CN115822039A (en) | 2023-03-21 |
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| CN202310030756.XA Pending CN115822039A (en) | 2023-01-10 | 2023-01-10 | Novel safe and reliable high-rise building water supply system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117627115A (en) * | 2023-11-07 | 2024-03-01 | 湖南金龙给水设备有限公司 | Secondary water supply system and method with water pressure regulation and early warning functions |
| CN117627115B (en) * | 2023-11-07 | 2024-05-14 | 湖南金龙给水设备有限公司 | Secondary water supply system and method with water pressure regulation and early warning functions |
-
2023
- 2023-01-10 CN CN202310030756.XA patent/CN115822039A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117627115A (en) * | 2023-11-07 | 2024-03-01 | 湖南金龙给水设备有限公司 | Secondary water supply system and method with water pressure regulation and early warning functions |
| CN117627115B (en) * | 2023-11-07 | 2024-05-14 | 湖南金龙给水设备有限公司 | Secondary water supply system and method with water pressure regulation and early warning functions |
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