CN112881049A - Intelligent variable-pressure water supply whole pipe network simulation system and method - Google Patents
Intelligent variable-pressure water supply whole pipe network simulation system and method Download PDFInfo
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- CN112881049A CN112881049A CN202110031801.4A CN202110031801A CN112881049A CN 112881049 A CN112881049 A CN 112881049A CN 202110031801 A CN202110031801 A CN 202110031801A CN 112881049 A CN112881049 A CN 112881049A
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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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
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
Abstract
The invention relates to an intelligent variable-pressure water supply whole pipe network simulation system and method. The method comprises municipal direct water supply simulation, single-equipment community simplified pipe network water supply simulation, single-equipment community complex looped network water supply simulation and multi-equipment linkage water supply simulation. The invention has the advantages that: the pipe network simulation device simulates pipe loss by using pipelines with different calibers and different roughness coefficients and lengths, and controls the change of simulated flow and flow speed by using the opening and closing degree of the valve, so that the pipe network simulation device integrates the simulation of a whole series of pipe networks of a municipal pipe network, a residential ring network, a building branch pipe network and an indoor faucet and can fully simulate and analyze water supply characteristics; water flow finally returns to the water storage tank from the water storage tank through a series of pipelines, valves, equipment and the like, and the flow direction is controlled by switching of different valves, so that the real simulation of a multi-water supply scene is achieved while water resource waste is avoided.
Description
Technical Field
The invention relates to the field of urban water supply analysis, in particular to an intelligent variable-pressure water supply whole pipe network simulation system and method.
Background
With the continuous expansion of the urbanization process, high-rise buildings are increasing day by day, and water supply becomes a great focus of urban life. The performance of the pressurized secondary water supply device is particularly important as a terminal for connecting with an end user. At present, secondary water supply equipment generally adopts a constant-pressure variable-frequency control mode, and the rotating speed of a water pump is adjusted by a frequency converter to maintain the water supply pressure in each time period unchanged; meanwhile, a variable-voltage variable-frequency control mode which gives consideration to the change of the resistance of a pipeline system also appears on the market at present, the rotating speed of the water pump is adjusted through a frequency converter, the change of the water supply pressure can be calculated according to the required water quantity at different time intervals, the control mode can save more energy through variable-voltage operation and also reduces the leakage and fault rate of a pipe network, and the control mode is the mainstream trend of the development of a control mode of secondary water supply equipment.
The existing constant-pressure variable-frequency control mode is relatively simple and has a mature test system, the variable-pressure variable-frequency control mode is relatively complex when the water consumption rule and the tail end pressure fluctuation condition need to be mastered, the existing water supply equipment test system is only used for simply testing the pressure control and protection mechanism of the water inlet pipe and the water outlet pipe of the water supply equipment, the real simulation of the water head loss, the random fluctuation of water consumption and the tail end pressure condition of the equipment and various peripheral pipe networks is not realized, and the variable-pressure water supply performance and the intelligent control effect of the water supply equipment cannot be accurately reflected.
Disclosure of Invention
The invention mainly solves the problems that the existing water supply equipment test system only simply tests the pressure control and protection mechanism of the water inlet pipe and the water outlet pipe of the water supply equipment, and does not realize the real simulation of the head loss, the random fluctuation of water use and the tail end pressure condition of various pipe networks of the equipment and the periphery, and the variable pressure water supply performance and the intelligent control effect of the water supply equipment cannot be accurately reflected, and provides an intelligent variable pressure water supply whole pipe network simulation system and a method which have the characteristics of water use demand and management system and have the functions of multi-pipe-diameter simulation, multi-pipe-loss simulation, wide-flow simulation, constant variable pressure simulation, wide-flow simulation and the like.
The invention adopts the technical scheme that the intelligent variable-pressure water supply whole pipe network simulation system comprises a water storage tank, a pipe network simulation device, a first variable-pressure water supply device, a second variable-pressure water supply device, a third variable-pressure water supply device and a terminal pipe network simulation device, the water outlet of the water storage tank is connected with the water inlet of the first variable pressure water supply equipment through the water outlet butterfly valve of the water storage tank, the first water outlet of the first variable pressure water supply equipment is connected with the terminal pipe network simulation device through the flow channel switching butterfly valve, the second water outlet of the first variable pressure water supply equipment is connected with the water inlet of the second variable pressure water supply equipment and the water inlet of the third variable pressure water supply equipment respectively, the water outlet of the second variable pressure water supply equipment and the water outlet of the third variable pressure water supply equipment are both connected with the pipe network simulation device, the pipe network simulation device is connected with the terminal pipe network simulation device, and the terminal pipe.
Water flow finally returns to the water storage tank from the water storage tank through a series of pipelines, valves, equipment and the like, and the flow direction is controlled by switching of different valves, so that the real simulation of a multi-water supply scene is achieved while water resource waste is avoided.
As an optimal scheme of the above scheme, the pipe network simulation device comprises a support frame, a plurality of pipelines with different calibers, a plurality of butterfly valves, a plurality of expansion joints, a first water inlet, a second water inlet and a plurality of water outlets, wherein the pipelines are stacked on the support frame to form a plurality of layers of pipelines, each layer of pipeline comprises butterfly valves arranged at the head end and the tail end of the layer of pipeline and expansion joints arranged in the pipelines, the pipelines are connected through straight pipe sections, the first water inlet and the second water inlet are arranged on the lowest layer of pipeline, the first water inlet is connected with the water outlet of the second variable pressure water supply equipment, the second water inlet is connected with the water outlet of the third variable pressure water supply equipment, the water outlets are arranged on the junction layers of the pipelines with different calibers, and the water outlets are connected with the. The pipe network simulation device simulates pipe loss by using pipelines with different calibers and lengths, controls the change of simulation flow and flow speed by using the opening and closing degree of the valve, integrates the simulation of a whole series of pipe networks of municipal pipe networks, residential ring networks, building branch pipe networks and indoor water taps, and can fully simulate and analyze water supply characteristics.
As a preferable mode of the above-described mode, in the pipe network simulation apparatus, the pipe diameters of the pipes are smaller as the number of layers is higher, and the internal roughness of the pipes of the same diameter is different for different layers. Different internal roughness levels were used to simulate pipe losses.
As a preferred scheme of the scheme, the number of the water outlets is connected with the number of the calibers of the pipelines, the calibers of the water outlets and the pipelines connected with the water outlets are the same, and the calibers of the water outlets connected with the water outlet butterfly valves are the same.
Correspondingly, the invention also provides an intelligent variable-pressure water supply whole pipe network simulation method, and the intelligent variable-pressure water supply whole pipe network simulation system comprises municipal direct water supply simulation, single-equipment community simplified pipe network water supply simulation, single-equipment community complex ring network water supply simulation and multi-equipment linkage water supply simulation.
The system integrates the simulation of municipal pipe network, cell ring network, building branch pipe network and indoor water tap, and can fully simulate and analyze the water supply characteristics.
As a preferable scheme of the scheme, when the municipal direct water supply simulation is carried out: the flow channel switching butterfly valve is kept closed, the single water outlet butterfly valve is kept open, the third variable pressure water supply device and the second variable pressure water supply device do not operate, the first variable pressure water supply device simulates time-interval peak-shifting pressurized water supply, and the terminal pipe network simulation device simulates a building branch pipe network and an indoor faucet.
As a preferred scheme of the above scheme, when performing the simulation of the simplified pipe network water supply of the single-equipment cell: the flow channel switching butterfly valve is kept open, all water outlet butterfly valves are kept closed, the third variable pressure water supply equipment and the second variable pressure water supply equipment do not operate, the second water outlet of the first variable pressure water supply equipment is closed, the first variable pressure water supply equipment simulates pressurized water supply, and the terminal pipe network simulation device simulates a building branch pipe network and an indoor faucet.
As a preferred scheme of the above scheme, when performing single-device cell complex ring network water supply simulation: the flow channel switching butterfly valve is kept closed, the single water outlet butterfly valve is kept opened in turn, the third variable pressure water supply equipment and the second variable pressure water supply equipment do not operate, the first variable pressure water supply equipment supplies water under pressure, and the terminal pipe network simulation device simulates a building branch pipe network and an indoor faucet.
As a preferable mode of the above mode, when the multi-equipment linkage water supply simulation is performed: the flow channel switching butterfly valve is kept closed, the single water outlet butterfly valve is kept opened in turn, the third variable pressure water supply device and the second variable pressure water supply device operate, the first variable pressure water supply device simulates time-interval peak-shifting pressurized water supply, and the terminal pipe network simulation device simulates a building branch pipe network and an indoor faucet.
The invention has the advantages that: the pipe network simulation device simulates pipe loss by using pipelines with different calibers and different roughness coefficients and lengths, and controls the change of simulated flow and flow speed by using the opening and closing degree of the valve, so that the pipe network simulation device integrates the simulation of a whole series of pipe networks of a municipal pipe network, a residential ring network, a building branch pipe network and an indoor faucet and can fully simulate and analyze water supply characteristics; water flow finally returns to the water storage tank from the water storage tank through a series of pipelines, valves, equipment and the like, and the flow direction is controlled by switching of different valves, so that the real simulation of a multi-water supply scene is achieved while water resource waste is avoided.
Drawings
Fig. 1 is a schematic structural diagram of an intelligent pressure-varying water supply whole pipe network simulation system in the embodiment.
Fig. 2 is a schematic top view of the pipe network simulation apparatus according to the embodiment.
Fig. 3 is a schematic view of a pipe network simulation apparatus according to an embodiment.
1-water storage tank 2-water storage tank water outlet butterfly valve 3-water outlet DN50 butterfly valve 4-water outlet DN80 butterfly valve 5-water outlet DN125 butterfly valve 6-flow channel switching butterfly valve 7-first variable pressure water supply equipment 8-variable pressure water supply equipment water outlet connecting pipe 9-second variable pressure water supply equipment water outlet connecting pipe 10-second variable pressure water supply equipment water inlet connecting pipe 11-pipe network simulation device 12-third variable pressure water supply equipment water inlet connecting pipe 13-third variable pressure water supply equipment water outlet connecting pipe 14-second variable pressure water supply equipment control cabinet 15-third variable pressure water supply equipment control cabinet 16-third variable pressure water supply equipment 17-second variable pressure water supply equipment 18-terminal pipe network simulation device control cabinet 19-first variable pressure water supply equipment control cabinet 20-terminal pipe network simulation device 21-DN 125 pipeline 22-DN80 A pipeline 23-DN50 pipeline 24-a first water inlet 25-DN125 butterfly valve 26-DN80 butterfly valve 27-DN50 butterfly valve 28-a second water inlet 29-DN125 telescopic joint 30-DN80 telescopic joint 31-DN50 telescopic joint 32-a support frame 33-DN125 water outlet pipe 34-DN80 water outlet pipe 35-DN50 water outlet pipe.
Detailed Description
The technical solution of the present invention is further described below by way of examples with reference to the accompanying drawings.
Example (b):
the embodiment provides an intelligent pressure-variable water supply whole pipe network simulation system, as shown in fig. 1, including water storage box 1, water storage box goes out water butterfly valve 2, go out water DN50 butterfly valve 3, go out water DN80 butterfly valve 4, go out water DN125 butterfly valve 5, runner switching butterfly valve 6, first pressure-variable water supply equipment 7, first pressure-variable water supply equipment goes out water connecting pipe 8, second pressure-variable water supply equipment goes out water connecting pipe 9, second pressure-variable water supply equipment intake connecting pipe 10, pipe network simulation device 11, third pressure-variable water supply equipment intake connecting pipe 12, third pressure-variable water supply equipment goes out water connecting pipe 13, second pressure-variable water supply equipment switch board 14, third pressure-variable water supply equipment switch board 15, third pressure-variable water supply equipment 16, second pressure-variable water supply equipment 17, terminal pipe network simulation device switch board 18, first pressure-variable water supply equipment switch board 19 and terminal pipe network simulation device 20. The water outlet of the water storage tank 1 is connected with the water inlet of a first variable pressure water supply device 7 through a water outlet butterfly valve 2 of the water storage tank, the first water outlet of the first variable pressure water supply device 7 is connected with a terminal pipe network simulation device 20 through a flow channel switching butterfly valve 6, the second water outlet of the first variable pressure water supply device 7 is connected with a water outlet connecting pipe 8 of the first variable pressure water supply device, the water outlet connecting pipe 8 of the first variable pressure water supply device is provided with two branches, the first branch is connected with the water inlet of a second variable pressure water supply device 17 through a water inlet connecting pipe 10 of the second variable pressure water supply device, the water outlet of the second variable pressure water supply device 17 is connected with a pipe network simulation device 11 through a water outlet connecting pipe 9 of the second variable pressure water supply device, the second branch is connected with the water inlet of a third variable pressure water supply device 16 through a water inlet connecting pipe of the third variable pressure water supply device 16, the, the pipe network simulation device is connected with the terminal pipe network simulation device 20 through a water outlet DN50 butterfly valve 3, a water outlet DN80 butterfly valve 4 and a water outlet DN125 butterfly valve 5 respectively, and the terminal pipe network simulation device 20 is connected with the water storage tank. The terminal pipe network simulation device terminal and each variable pressure water supply equipment are controlled by the terminal pipe network simulation device control cabinet 18, the first variable pressure water supply equipment control cabinet 19, the second variable pressure water supply equipment control cabinet 14 and the third variable pressure water supply equipment control cabinet 15 to operate respectively, and the whole water circulation process is simulated. In this embodiment, the first variable pressure water supply unit is provided with the large pump, the medium pump and the small pump with different flow rates, so that the large pump can be used for simulating the variable pressure peak-shaving capacity of municipal large-flow water supply, and the medium and small pumps can be used for simulating the effectiveness comparison and verification of medium-small flow constant and variable pressure water supply in a small-area pump room.
As shown in fig. 2 and 3, the pipe network simulation device comprises a DN125 pipeline 21, a DN80 pipeline 22, a DN50 pipeline 23, a first water inlet 24, a DN125 butterfly valve 25, a DN80 butterfly valve 26, a DN50 butterfly valve 27, a second water inlet 28, a DN125 telescopic joint 29, a DN80 telescopic joint 30, a DN50 telescopic joint 31, a support frame 32, a DN125 water outlet pipe 33, a DN80 water outlet pipe 34 and a DN50 water outlet pipe 35, wherein the pipelines are stacked on the support frame to form 18 layers of pipelines, 3 layers of the pipelines are DN125 pipelines, 6 layers of the pipelines are DN80 pipelines and 9 layers of the pipelines are DN50 pipelines, 18 layers of the pipelines are in a pyramid shape, each layer of the pipelines comprises butterfly valves arranged at the head end and the tail end of the layer of the pipeline and the telescopic joints arranged in the pipelines, each layer of the pipelines are connected through a straight pipe section, a first water inlet and a second water inlet are arranged at the lowest layer of the pipelines, the first water inlet is connected with a variable pressure water supply device, and a variable pressure water, the water outlet is arranged on a boundary layer of pipelines with different calibers and is connected with the terminal pipe network simulation device through a water outlet butterfly valve. In this embodiment, the pipe diameters of the pipes with the same diameter are smaller as the number of layers is higher, and the internal roughness of the pipes with the same diameter is different, namely the DN125 pipe, the DN80 pipe and the DN50 pipe are respectively provided with a pipe with different internal roughness coefficients; the number of the water outlets is connected with the caliber number of the pipeline, the calibers of the water outlets and the pipeline connected with the water outlets are the same, and the calibers of the water outlets and the water outlets connected with the water outlets are the same.
In the pipe network simulation device, water flows through a first layer of DN125 pipelines, three DN125 expansion joints 29, a first DN125 butterfly valve 25 and a last DN125 butterfly valve 25 enter a second layer of DN125 pipeline layers through a vertical DN125 straight pipe section, similarly enter a third layer of DN125 pipeline layers and enter a fourth layer of DN80 pipelines through a vertical DN80 straight pipe section, then pass through three DN80 expansion joints 30, a first DN80 butterfly valve 26 and a last DN80 butterfly valve 26 enter a fifth layer of DN80 pipeline layers through a vertical DN80 straight pipe section, similarly enter a sixth, seventh, eighth and ninth layer of DN80 pipeline layers and enter a tenth layer of DN50 pipelines through a vertical DN50 straight pipe section, then pass through three DN50 expansion joints 31, and a first DN50 butterfly valve 27 and a last DN50 straight pipe section enter an eleventh, twelfth, thirteen, fourteenth, fifteenth, sixteenth, seventeenth and eighteenth layer of DN50 pipeline layers. A DN125 water outlet pipe 33 is led out from the tail end of the third layer, a DN80 water outlet pipe 34 is led out from the tail end of the ninth layer, and a DN50 water outlet pipe 35 is led out from the tail end of the eighteenth layer and is respectively connected to a water outlet DN125 butterfly valve 5, a water outlet DN80 butterfly valve 4 and a water outlet DN50 butterfly valve 3.
The different then pipeline energy loss of water resistance is different, controls rivers distance through the pipeline number of piles that the control water flows through and further controls the rivers loss, has realized the simulation of many pipe losses, controls the area of overflowing through the different switching degree of DN125 butterfly valve, DN80 butterfly valve, DN50 butterfly valve of configuration simultaneously to realize the simulation of wide flow and wide velocity of flow.
Correspondingly, the embodiment also provides an intelligent variable-pressure water supply whole-pipe network simulation method for the intelligent variable-pressure water supply whole-pipe network simulation system, which comprises municipal direct water supply simulation, single-equipment community simplified pipe network water supply simulation, single-equipment community complex ring network water supply simulation and multi-equipment linkage water supply simulation.
When the municipal direct water supply simulation is carried out, the flow channel switching butterfly valve is kept closed, the water outlet DN50 butterfly valve is kept open, the water outlet DN80 butterfly valve and the water outlet DN125 butterfly valve are kept closed, the third variable pressure water supply device and the second variable pressure water supply device 2 do not operate, the first variable pressure water supply device is used as a municipal main pipe network pressurizing pump station for constant and variable pressure operation simulation time interval peak staggering pressurizing water supply, the pipe network simulation device simulates a municipal pipe network, the 20-terminal pipe network simulation device simulates a building branch pipe network and an indoor water faucet, only the low-floor (generally 1-6 floors) terminal pipe network simulation is opened, and the whole system forms a low-floor municipal direct supply simulation system.
When the simulation of the simplified pipe network water supply of the single equipment community is carried out: the flow channel switching butterfly valve is kept open, the water outlet DN50 butterfly valve, the water outlet DN80 butterfly valve and the water outlet DN125 butterfly valve are kept closed, the third variable pressure water supply device and the second variable pressure water supply device do not operate, the second water outlet of the first variable pressure water supply device is closed to ensure that water does not enter the pipe network simulation device, the first variable pressure water supply device is used as a box type variable frequency water supply device in a pump room to operate at constant and variable pressure for simulating pressurized water supply, the terminal pipe network simulation device is directly connected with a building branch pipe network and an indoor faucet, and the simulation of terminal pipe networks of all floors is opened, so that the whole system forms a single-device simplified pipe network.
When the water supply simulation of the single-equipment community complex looped network is carried out: the method comprises the steps that a flow channel switching butterfly valve is kept closed, water outlet DN50 butterfly valves, a water outlet DN80 butterfly valve and a water outlet DN125 butterfly valve are opened in turn, only 1 butterfly valve is opened at the same time, the other 2 butterfly valves are closed, different pipe diameter configurations of a complex ring network of a cell are simulated, a third variable pressure water supply device and a second variable pressure water supply device do not operate, the first variable pressure water supply device is used as a box type variable frequency water supply device to simulate constant and variable pressure operation to supply water under pressure, a pipe network simulation device simulates the complex ring network of the cell, a connecting terminal pipe network simulation device simulates a building branch pipe network and an indoor water faucet, simulation of opening terminal pipe networks of all floors is achieved, and the.
When multi-equipment linkage water supply simulation is carried out: the method comprises the steps of keeping a flow channel switching butterfly valve closed, opening a water outlet DN50 butterfly valve, a water outlet DN80 butterfly valve and a water outlet DN125 butterfly valve in turn, opening only 1 butterfly valve at the same time, closing the other 2 butterfly valves, simulating different pipe diameter configurations of a complex ring network of a residential area, using a third variable pressure water supply device and a second variable pressure water supply device as pot type non-negative pressure low-area and high-area water supply devices of a residential area pump house for pressurized water supply, using the first variable pressure water supply device as a municipal administration main pipe network pressurized pump station for constant and variable pressure operation simulation time interval peak staggering pressurized water supply, using a pipe network simulation device for simulating the complex ring network of the residential area, using a connecting terminal pipe network simulation device for simulating a building branch pipe network and an indoor faucet, opening all floor terminal pipe networks.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (9)
1. The utility model provides an intelligence vary voltage water supply full pipe network analog system, characterized by: the water storage tank is connected with a water inlet of the first variable pressure water supply equipment through a water outlet butterfly valve of the water storage tank, a first water outlet of the first variable pressure water supply equipment is connected with the terminal pipe network simulation device through a flow channel switching butterfly valve, a second water outlet of the first variable pressure water supply equipment is connected with a water inlet of the second variable pressure water supply equipment and a water inlet of the third variable pressure water supply equipment respectively, a water outlet of the second variable pressure water supply equipment and a water outlet of the third variable pressure water supply equipment are connected with the pipe network simulation device, the pipe network simulation device is connected with the terminal pipe network simulation device, and the terminal pipe network simulation device is connected with the water storage tank.
2. The intelligent pressure-variable water supply full pipe network simulation system according to claim 1, which is characterized in that: the pipe network simulation device comprises a support frame, a plurality of pipelines with different calibers, a plurality of butterfly valves, a plurality of expansion joints, a first water inlet, a second water inlet and a plurality of water outlets, the pipelines are stacked on the support frame to form a multilayer pipeline, each layer of pipeline comprises butterfly valves arranged at the head and tail ends of the layer of pipeline and expansion joints arranged in the pipelines, the pipelines are connected through straight pipe sections, the lowest layer of pipeline is arranged at the first water inlet and the second water inlet, the first water inlet is connected with the water outlet of the second variable pressure water supply equipment, the second water inlet is connected with the water outlet of the third variable pressure water supply equipment, the water outlets are arranged on the junction layers of the pipelines with different calibers, and the water outlets are connected with the terminal pipe network simulation device through.
3. The intelligent pressure-variable water supply full pipe network simulation system according to claim 2, wherein: in the pipe network simulation device, the pipe caliber is smaller when the number of layers is higher, and the internal roughness of the pipes with the same caliber and different numbers of layers is different.
4. The intelligent pressure-variable water supply full pipe network simulation system according to claim 2, wherein: the number of the water outlets is connected with the number of the calibers of the pipelines, the calibers of the water outlets and the pipelines connected with the water outlets are the same, and the calibers of the water outlets connected with the water outlet butterfly valves are the same.
5. An intelligent pressure-varying water supply whole pipe network simulation method, which adopts the intelligent pressure-varying water supply whole pipe network simulation system of any claim 1 to 4, and is characterized in that: the method comprises municipal direct water supply simulation, single-equipment community simplified pipe network water supply simulation, single-equipment community complex ring network water supply simulation and multi-equipment linkage water supply simulation.
6. The intelligent pressure-variable water supply whole pipe network simulation method according to claim 5, which is characterized in that: when carrying out municipal direct water supply simulation: the flow channel switching butterfly valve is kept closed, the single water outlet butterfly valve is kept open, the third variable pressure water supply device and the second variable pressure water supply device do not operate, the first variable pressure water supply device simulates time-interval peak-shifting pressurized water supply, and the terminal pipe network simulation device simulates a building branch pipe network and an indoor faucet.
7. The intelligent pressure-variable water supply whole pipe network simulation method according to claim 5, which is characterized in that: when the simulation of the simplified pipe network water supply of the single equipment community is carried out: the flow channel switching butterfly valve is kept open, all water outlet butterfly valves are kept closed, the third variable pressure water supply equipment and the second variable pressure water supply equipment do not operate, the second water outlet of the first variable pressure water supply equipment is closed, the first variable pressure water supply equipment simulates pressurized water supply, and the terminal pipe network simulation device simulates a building branch pipe network and an indoor faucet.
8. The intelligent pressure-variable water supply whole pipe network simulation method according to claim 5, which is characterized in that: when the water supply simulation of the single-equipment community complex looped network is carried out: the flow channel switching butterfly valve is kept closed, the single water outlet butterfly valve is kept opened in turn, the third variable pressure water supply equipment and the second variable pressure water supply equipment do not operate, the first variable pressure water supply equipment supplies water under pressure, and the terminal pipe network simulation device simulates a building branch pipe network and an indoor faucet.
9. The intelligent pressure-variable water supply whole pipe network simulation method according to claim 5, which is characterized in that: when multi-equipment linkage water supply simulation is carried out: the flow channel switching butterfly valve is kept closed, the single water outlet butterfly valve is kept opened in turn, the third variable pressure water supply device and the second variable pressure water supply device operate, the first variable pressure water supply device simulates time-interval peak-shifting pressurized water supply, and the terminal pipe network simulation device simulates a building branch pipe network and an indoor faucet.
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| CN101799371A (en) * | 2010-03-22 | 2010-08-11 | 北京工业大学 | Water-saving performance test device of building water supply system water using apparatus |
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