CN105297837B - High-rise housing pipe network direct supply, energy storage peak clipping and intelligent variable-frequency water supply system and use method - Google Patents
High-rise housing pipe network direct supply, energy storage peak clipping and intelligent variable-frequency water supply system and use method Download PDFInfo
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Abstract
The invention provides a high-rise housing pipe network direct supply, energy storage peak clipping and intelligent variable-frequency water supply system and a use method. The high-rise housing pipe network direct supply, energy storage peak clipping and intelligent variable-frequency water supply system comprises a low-pressure-area pipe network water supply system, a middle-and-high-pressure-area energy storage peak clipping water supply system and a remote transmission alarm system. The high-rise housing pipe network direct supply, energy storage peak clipping and intelligent variable-frequency water supply system and the use method comprise the following aspects: 1) the operating mode of the low-pressure-area pipe network water supply system; and 2) the operating mode of the middle-and-high-pressure-area energy storage peak clipping water supply system. According to the high-rise housing pipe network direct supply, energy storage peak clipping and intelligent variable-frequency water supply system and the use method disclosed by the invention, a mode of supplying water by differentiating pressure areas is adopted, and thus energy consumption can be greatly reduced. In addition, the system disclosed by the invention also has the characteristic of low investment.
Description
Technical Field
The invention relates to a water supply control system, in particular to a high-rise residential pipe network direct supply, energy storage peak clipping and intelligent variable frequency water supply system and a using method thereof.
Background
In the pressurized water supply system of urban high-rise buildings, the pressurized water supply is generally divided into zones according to the floor height (a roof water tank is adopted for supplying water in part of urban high-pressure zones).
In a general constant pressure water supply system, there is such a water supply mathematical model
Wherein:
: water supply pressure of water pump set
: water pressure for user
Δ H: head loss during water supply
K: coefficient of resistance of pipe network
Q: instantaneous outlet flow of water supply end
And Qm: maximum outlet flow of water supply end
: average water consumption by user
The coefficient of variation is generally set to 1.6 to 1.8
No matter the water supply in any pressure area of low, medium and high, such water supply mathematical model exists that in the same area water supply system, the K value is constant,the value being preselected and constant, at the water supply pressure of the pump unitWhen the water pump is constant, the speed regulation range and the start-stop of the water pump are determined by the number of water users and the water consumption of N users in unit time. Meanwhile, the pressurized water supply mode is as follows: water pump unit → pipe network → direct supply mode for water consumption of users, in unit time, the opening of N water consumption switches for users is equal to the direct pressure relief from the pipe network, and is influenced by the height and the number of floors, thus directly influencing the service quality and safety of water supply. The zoned variable frequency nature, pressurized water supply system has several problems as follows.
1. The residential district is 1-3 layers, the service water supply pressure is required to be 0.16 MPa regulated in national construction, and the traditional variable-frequency quality direct water supply is carried out within the range of 0.1-0.12 MPa of the pressure protection device of the non-negative pressure water supply equipment, the 1-3 layers are arranged into the subarea pressurization range, the pressure of a water supply network is wasted, unnecessary electric energy is consumed, the water pressure of the 1-3 layers is neglected within the index range in which the service pressure must exist, and the water supply pressure of the water supply network can completely meet the water pressure requirement of 1-3 layers of users (if the water pressure can not be met, the non-negative pressure machine set can not work).
2. In the traditional high-pressure pressurizing water supply scheme, no matter the high, middle and low regions are pressurized, only the flow Q of the water pump unit is considered when selecting the flow QTo do so. I.e. the average water consumption of a user in 24 hoursOn the basis of the time variation coefficient of 1.6 to 1.8On the basis, the maximum water yield of the water pump set is determined,neglecting the characteristic that the flow required by the residential area in the off-peak water consumption period is greatly reduced, the high-power main pump can be operated for a long time, and although the flow is regulated by the variable-frequency speed regulation and pressure maintaining device, most of the high-power main pump exceeds the range of the variable-frequency speed regulation of not more than 5%. The no-load operation condition is serious, which is one of the main factors that the waste of the pressurized water in the high-rise residential district is increased, and the electricity charges of the pressurized water are too high for owners and property enterprises, so that disputes are continuous.
3. High-rise pressurized water supply of tradition is frequency conversion constant voltage water supply mostly, mainly by two kinds of modes:
pipe network water → pressure pump → pipeline → user water gate;
pipe network water → pressure pump → pipeline → high-level water tank → user water valve.
In the first mode:
it can be seen from the process flow that in the normal pressurized water supply process, the pressurizing pump directly supplies water from the water supply network and directly reaches the user water gate through the pipe network, the rough view is very simple, but the detailed analysis shows that the water system consisting of a plurality of N user water gates, the user water gate and various water sanitary wares have the functions of being not neglectable besides the functions of the water system, namely the coefficient of variationThe value is constantly changing, forming a kind of indefinite, indefinite pressure, constantly from each user's junction of water supply network of fixed position the pressure release, cause several following problems:
the water supply pressure difference delta H between users is large.
The water supply unit can be calculated by taking 10 layers as a pressurizing area, in order to meet the pressure requirement of the 10 th layer of user layer, the water facilities of the bottom layer of users bear the water supply pressure of 0.35Mpa, the damage to a user pipe network is great, although pressure reducing valves are arranged between floors of a community to eliminate pressure difference delta H, the water supply unit also needs to use partial power to overcome the resistance caused by the pressure reducing valve due to the arrangement of the pressure reducing valves. Waste electric energy and equipment loss
② whenWhen the value is maximum (when the peak is using water)
At the moment, the pressurizing unit collects too much water from the water supply network, so that the water supply network is easily protected by the pressurizing unit without negative pressure or forms a water supply low-pressure area, so as to avoid causing negative pressure of the water supply main network. Firstly, influence water supply network water supply service pressure and damage pipe network, secondly higher floor user drinking water difficulty.
4. The pressurizing unit is operated in a low-efficiency region for a long time
Firstly, damage equipment, extravagant electric energy, its water supply system of traditional water pump pressurization water supply is a closed system when the user does not use water, and its pressure keeps generally to have pressurize pump or pressure gas pitcher to carry out the pressurize. However, in every household in a small area, even if a user uses a little water, the pressure of the water supply system is released once the water is drained because the user continuously uses water in 24 hours under various conditionsExcess pressure-maintaining water quantitySecondly, because the water consumption of a user is not controllable by △ Q, the machine set of the variable-frequency water supply system is continuously adjusted, and the damage of a water supply service pipe network and the overhigh electricity fee of the pressurized water of the user are also caused
5. The water supply equipment has large power selection, high investment and waste of electric energy
Because the current equipment operates, the requirement of meetingSo to be multiplied by a time-varying coefficientThe power and flow of the main pump are 1.6-1.8 times of the average water supply, so that the investment is large, and the cost is lowWhen the load is less than or equal to 1, the water pump unit works at low efficiency and has large no-load, and electric energy is wasted.
The second mode has the defects that the highest power is used for extracting water to the top layer and sending the water downwards, so that firstly, energy is wasted, and secondly, the pollution is easy to occur.
Disclosure of Invention
In view of the above disadvantages of the prior art, an object of the present invention is to provide a direct supply, energy storage and peak clipping intelligent variable frequency water supply system for high-rise residential buildings and a method for using the same, which are used to solve the above problems in the prior art.
In order to achieve the above and other related objects, an aspect of the present invention provides a high-rise residential building direct supply, energy storage peak clipping, and intelligent variable frequency water supply system, comprising: the system comprises a low-pressure area pipe network water supply system, a medium-high pressure area energy storage peak clipping water supply system and a remote transmission alarm system;
the water inlet of the low-pressure area pipe network water supply system is connected with the water inlet pipeline, and the water outlet of the low-pressure area pipe network water supply system is connected with the low-pressure area water pipeline;
the water inlet of the medium-high pressure region energy storage peak clipping water supply system is connected with a water inlet pipeline, and the water outlet of the medium-high pressure region energy storage peak clipping water supply system is connected with a water pipeline for the medium-high pressure region;
the remote transmission alarm system comprises a GPRS transmission module and a server;
the GPRS transmission module can be used for receiving data signals of the medium-high voltage area energy storage peak clipping water supply system and transmitting the signals to the server, and the GPRS transmission module can also be used for receiving data signals of the server and transmitting the signals to the medium-high voltage area energy storage peak clipping water supply system;
the server comprises a data analysis module, a receiver and a transmitter; and the system is used for receiving the data signal of the GPRS transmission module, analyzing and processing the data signal, and then transmitting the processed signal to the medium-high voltage area energy storage and peak clipping water supply system through the GPRS transmission module.
Preferably, the low-pressure area pipe network water supply system comprises: the water pump unit, the water replenishing pool, the connecting pipeline and the control cabinet;
the water pump unit is formed by connecting a plurality of water pump branches in parallel, each water pump branch is formed by sequentially connecting a water pump, a butterfly valve and a silencing check valve in series, a water inlet of the water pump unit is connected with the water replenishing pool, and a water outlet of the water pump unit is connected with each low-pressure area user branch through a main pipeline;
an electric butterfly valve A is arranged on a water inlet pipeline of the water pump unit and is connected with the control cabinet through a control line; an electric butterfly valve B is arranged on the main pipeline and in front of a connection point of a water outlet of the water pump unit and the main pipeline;
a pressure transmitter is arranged on a water outlet of the water pump unit and is connected with the control cabinet through a control circuit; the control cabinet is connected with the water pump unit through a control circuit.
Further preferably, a valve is arranged on the low-pressure area user branch.
Preferably, the medium-high pressure area energy storage peak clipping water supply system comprises: the water pump unit, the control cabinet, the first pressure area water supply branch, the second pressure area water supply branch and the … … Nth pressure area water supply branch; wherein N is a positive integer;
the water inlet of the water pump unit is connected with a water inlet pipeline, and the water outlet of the water pump unit is connected with the water supply branches of the pressure areas through a main pipeline;
the first pressure area water supply branch, the second pressure area water supply branch and the … … Nth pressure area water supply branch are mutually connected in parallel and are respectively connected with the main pipeline;
a water outlet pipeline of the water pump unit is provided with a pressure transmitter, and the pressure transmitter is connected with the control cabinet through a control circuit;
the control cabinet comprises; the system comprises a frequency converter, a PLC, a transmitter and a receiver; the control cabinet outputs signals to the GPRS transmission system through the transmitter and receives input signals of the GPRS transmission alarm system through the receiver; the water pump unit is connected with the water pump unit through a control circuit;
the water supply branch of each pressure area respectively comprises: the water supply device comprises a first unit water supply branch, a second unit water supply branch and an … … Mth unit water supply branch, wherein M is a positive integer; the water supply branches of all the units are mutually connected in parallel.
Preferably, the water pump unit is mainly formed by connecting a plurality of main pressurizing pump branches and a plurality of auxiliary pressurizing pump branches in parallel;
each pressurizing main pump branch is formed by sequentially connecting a manual butterfly valve, a pressurizing main pump, a manual butterfly valve and a silencing check valve in series;
each auxiliary pressurizing pump branch is formed by sequentially connecting a manual butterfly valve, an auxiliary pressurizing pump, a manual butterfly valve and a silencing check valve in series;
the water inlet end of the water pump unit is connected with a non-negative pressure energy storage device through an electric butterfly valve, and the electric butterfly valve is connected with the control cabinet of the medium-high pressure area energy storage peak clipping water supply system through a control circuit.
Preferably, each unit water supply branch comprises an energy storage and peak elimination integrated device, the input end of the energy storage and peak elimination integrated device is connected with the water inlet pipeline of the pressure area water supply branch, and the output end of the energy storage and peak elimination integrated device is connected with the water inlet pipeline of the unit user.
Still further preferably, the peak-storage-and-peak-elimination integrated device comprises: the system comprises a bag type energy storage tank, a unit control terminal, a water inlet valve, an electric butterfly valve, a check valve and a pressure transmitter; the input end of the bag type energy storage tank is connected with a water inlet pipeline of the unit water supply branch circuit through the check valve, the electric butterfly valve and the water inlet valve in sequence; the electric butterfly valve is connected with the unit control terminal through a control circuit; the pressure transmitter is arranged on the bag-type energy storage tank and is used for measuring upper and lower limit pressure values H9、H10(ii) a The pressure transmitter is connected with the unit control terminal through a control line. Wherein,
H9for a subscriber unit with a lower pressure limitThe peak eliminating integrated device needs to supplement pressure and water.
H10The upper limit pressure refers to the upper limit pressure reached by the energy storage and peak elimination integrated device of the user unit after the pressure and water supplement are stopped.
The invention also provides a high-rise residence pipe network direct supply, energy storage peak clipping and intelligent variable-frequency water supply system and a using method thereof, comprising the following aspects:
the working mode of the low-pressure area pipe network water supply system is as follows: the method comprises two working modes:
1. supplying water by a low-pressure area pipe network water supply system:
when H is satisfied1When the pressure is higher than H8 and higher than H7, the electric butterfly valve A is closed, the electric butterfly valve B is opened, and the electric butterfly valve A and the electric butterfly valve B are directly communicated to the low-pressure area through the pipe network
Supplying water;
2. pool water supply
When H cannot be satisfied1When the water supply is more than H8 and more than H7, the electric butterfly valve A is opened, the electric butterfly valve B is closed, and the water replenishing pool supplies water to the low-pressure area through the water pump unit;
wherein H1The pressure of water inlet of the main pipeline is indicated;
h7 is a pressure protection value set for avoiding directly taking water in a pipe network when a non-negative pressure pump works;
h8 is the lowest pressure value of the urban water supply network specified by the state, and is 0.16-0.18 MPa.
Working mode of medium-high pressure area energy storage peak clipping water supply system
1. Pressurizing unit water supply
Starting a pressurizing pump set to supply water to the water supply branches of the pressure areas at the initial pressurizing stage, and using the water capacity of the bag-type energy storage tank of the peak-eliminating integrated device of the water supply branches of the first pressure area, the second pressure area and the … … Nth pressure areaRespectively reach the set maximum value Q1、Q2、……QNWhen the pressure is maintained, the water pump unit stops running and enters a pressure maintaining state;
2. water supply switching between main pressurizing pump branch and auxiliary pressurizing pump branch
When the high-power main pump is in the pressurizing process H2≥H3However, the water pump frequency conversion speed regulation range hRegulating device≤hRated valueAccording to the water pump performance curve at any time, itWhen the auxiliary pump runs, the auxiliary pump with low power is automatically switched to run;
when H is present3When the constant value is reached, the water pump unit stops running and enters a pressure maintaining state; wherein,
H2is the outlet pressure of the pressurizing unit;
H3a tip pressure value for optimal economic flow to achieve the system's least favorable point;
hregulating deviceThe frequency conversion speed regulation range of the water pump unit is defined;
hrated valueThe rated frequency conversion speed regulation range of the water pump unit is set;
when the water capacities of the bag-type energy storage tanks of the energy storage and peak elimination integrated device of the first pressure area water supply branch, the second pressure area water supply branch and the … … Nth pressure area water supply branch respectively reach the lowest set Q1 is low、Q2 is low……QN is lowWhen the water pump unit is used, the low-power auxiliary pump is started preferentially and automatically to store energy and peak clipping, if the water quantity is insufficient, the high-power main pump is switched automatically until the water capacities of the bag-type energy storage tanks of the energy storage and peak clipping integrated device of the first pressure area water supply branch, the second pressure area water supply branch and the … … Nth pressure area water supply branch reach the maximum set value Q1 is low、Q2 is low……QN is lowMaintaining the pressure of the unit; and so on; the water supply unit permanently works in the optimal efficiency area of the water pump, and the main pump or the auxiliary pump is preferentially selected for supplying water.
As mentioned above, the pipe network direct supply, energy storage peak clipping and intelligent variable frequency water supply system and the use method of the high-rise residence provided by the invention adopt a pressure-area water supply mode, and can greatly reduce energy consumption; besides, the invention also has the characteristic of low investment.
Drawings
FIG. 1 is a schematic structural diagram of a high-rise residential pipe network direct supply, energy storage peak clipping and intelligent variable-frequency water supply system of the present invention;
FIG. 2 is a schematic diagram of a low-pressure area pipe network water supply system;
FIG. 3 is a schematic structural diagram of a medium-high pressure region energy storage and peak clipping water supply system;
FIG. 4 is a schematic structural view of an energy storage and peak suppression integrated device;
FIG. 5 is a schematic structural diagram of a water pump unit of a low-pressure area pipe network water supply system;
in the figure: 1GPRS transmission module, 2 high-pressure region energy storage peak clipping water supply system, 3 low-pressure region pipe network water supply system, 4 servers, 301 control cabinet, 302 electric butterfly valve, 303 water pump, 304 butterfly valve, 305 noise elimination check valve, 306 pressure transmitter, 307 water replenishing tank, 308 low-pressure region user branch, 309 electric butterfly valve A, 310 electric butterfly valve B, 201 water pump set, 202 control cabinet, 203 peak elimination integrated device, 204 first pressure region water supply branch, 205 Nth pressure region water supply branch, 206 pressure transmitter, 207 non-negative pressure energy storage device, 208 electric butterfly valve, 209 manual butterfly valve, 210 pressurization main pump, 211 manual butterfly valve, 212 noise elimination check valve, 213 pressurization auxiliary pump, 214 unit water supply branch, 2031 bag type energy storage tank, 2032 unit control terminal, 2033 water inlet valve, 2034 electric butterfly valve, 2035 check valve and 2036 pressure transmitter.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
Referring to fig. 1 to 5, in one aspect, the present invention provides a high-rise residential building pipe network direct supply, energy storage peak clipping, and intelligent variable frequency water supply system, including: a low-pressure area pipe network water supply system 3, a medium-high pressure area energy storage peak clipping water supply system 2 and a remote transmission alarm system;
the water inlet of the low-pressure area pipe network water supply system 3 is connected with a water inlet pipeline, and the water outlet of the low-pressure area pipe network water supply system is connected with a low-pressure area water pipeline;
the water inlet of the medium-high pressure region energy storage peak clipping water supply system 2 is connected with a water inlet pipeline, and the water outlet is connected with a water pipeline for the medium-high pressure region;
the remote transmission alarm system comprises a GPRS transmission module 1 and a server 4;
the GPRS transmission module 1 can be used for receiving data signals of the medium-high voltage region energy storage peak clipping water supply system 2 and transmitting the signals to the server 4, and the GPRS transmission module 1 can also be used for receiving data signals of the server 4 and transmitting the signals to the medium-high voltage region energy storage peak clipping water supply system 2;
the server 4 includes: a data analysis module, a receiver and a transmitter; and the system is used for receiving the data signal of the GPRS transmission module 1, analyzing and processing the data signal, and then transmitting the processed signal to the medium-high voltage area energy storage and peak clipping water supply system 2 through the GPRS transmission module 1.
The low-pressure area pipe network water supply system 3 comprises: the water pump unit, the water replenishing pool 307, the connecting pipeline and the control cabinet 301;
the water pump unit is formed by connecting a plurality of water pump branches in parallel, each water pump branch is formed by sequentially connecting a water pump 303, a butterfly valve 304 and a silencing check valve 305 in series, a water inlet of the water pump unit is connected with a water supplementing pool 307, and a water outlet of the water pump unit is connected with user branches 308 of each low-pressure area through a main pipeline;
an electric butterfly valve A309 is arranged on a water inlet pipeline of the water pump unit, and the electric butterfly valve A309 is connected with the control cabinet 301 through a control line; an electric butterfly valve B310 is arranged on the main pipeline and in front of the connection point of the water outlet of the water pump unit and the main pipeline;
a pressure transmitter 306 is arranged on a water outlet of the water pump unit, and the pressure transmitter 306 is connected with the control cabinet 301 through a control line; the control cabinet 301 is connected with the water pump unit through a control circuit; a valve is arranged on each low-pressure area user branch 308;
the medium-high pressure area energy storage peak clipping water supply system 2 comprises: the system comprises a water pump unit 201, a control cabinet 202, a first pressure area water supply branch 204, a second pressure area water supply branch and an … … Nth pressure area water supply branch 205; wherein N is a positive integer;
a water inlet of the water pump unit 201 is connected with a water inlet pipeline, and a water outlet of the water pump unit is connected with the water supply branches of the pressure areas through a main pipeline;
the first pressure area water supply branch 204, the second pressure area water supply branch, and the … … Nth pressure area water supply branch 205 are connected in parallel and are respectively connected with the main pipeline;
a water outlet pipeline of the water pump unit 201 is provided with a pressure transmitter 206, and the pressure transmitter 206 is connected with the control cabinet 202 through a control pipeline;
the control cabinet 202 includes; the system comprises a frequency converter, a PLC, a transmitter and a receiver; the control cabinet outputs signals to the GPRS transmission system through the transmitter and receives input signals of the GPRS transmission alarm system through the receiver; the water pump unit is connected with the water pump unit through a control circuit;
the water supply branch of each pressure area respectively comprises: the water supply device comprises a first unit water supply branch, a second unit water supply branch and an … … Mth unit water supply branch, wherein M is a positive integer; the unit water supply branches 311 are connected in parallel with each other.
The water pump unit 201 is mainly formed by connecting a plurality of main pressurizing pump branches and a plurality of auxiliary pressurizing pump branches in parallel;
each branch of the pressurizing main pump is formed by sequentially connecting a manual butterfly valve 209, a pressurizing main pump 210, a manual butterfly valve 211 and a silencing check valve 212 in series;
each auxiliary pressurizing pump branch is formed by sequentially connecting a manual butterfly valve, an auxiliary pressurizing pump 213, a manual butterfly valve and a silencing check valve in series;
the water inlet end of the water pump unit 201 is connected with the non-negative pressure energy storage device 207 through an electric butterfly valve 208, and the electric butterfly valve 208 is connected with the control cabinet 202 of the medium-high pressure area energy storage peak clipping water supply system through a control line.
Each unit water supply branch comprises an energy storage and peak elimination integrated device 203, the input end of the energy storage and peak elimination integrated device 203 is connected with the water outlet pipeline of the pressure area water supply branch, and the output end of the energy storage and peak elimination integrated device is connected with the water inlet pipeline of the unit water supply branch 214.
The storage peak-eliminating integrated device 203 includes: a bag type energy storage tank 2031, a unit control terminal 2032, a water inlet valve 2033, an electric butterfly valve 2034, a check valve 2035 and a pressure transmitter 2036; the input end of the bag type energy storage tank 2031 is connected with the water inlet pipeline of the unit water supply branch 214 through a check valve 2035, an electric butterfly valve 2034 and a water inlet valve 2033 in sequence; the electric butterfly valve 2034 is connected to the unit control terminal 2032 via a control line; the pressure transmitter 2036 is arranged in the bag2031 on the energy storage tank for measuring upper and lower limit pressure values H9、H10(ii) a The pressure transmitter 2031 is connected to a unit control terminal 2032 via a control line. Wherein,
H9the lower limit pressure refers to the lower limit pressure of the energy storage and peak elimination integrated device of the user unit, which needs to be supplemented with pressure and water;
H10the upper limit pressure refers to the upper limit pressure reached by the energy storage and peak elimination integrated device of the user unit after the pressure and water supplement are stopped.
The invention also provides a high-rise residence pipe network direct supply, energy storage peak clipping and intelligent variable-frequency water supply system and a using method thereof, comprising the following aspects:
the working mode of the low-pressure area pipe network water supply system is as follows: the method comprises two working modes:
1. supplying water by a low-pressure area pipe network water supply system:
when H is satisfied1When the pressure is higher than H8 and higher than H7, the electric butterfly valve A309 is closed, the electric butterfly valve B310 is opened, and water is directly supplied to low pressure by a pipe network;
2. pool water supply
When H cannot be satisfied1When the pressure is higher than H8 and higher than H7, the electric butterfly valve A309 is opened, the electric butterfly valve B310 is closed, and the water replenishing pool 307 supplies water to the low-pressure area through the water pump unit;
wherein H1The pressure of water inlet of the main pipeline is indicated;
h7 is a pressure protection value set for avoiding directly taking water in a pipe network when no auxiliary pressure pump works;
h8 is the lowest pressure value of the urban water supply network specified by the state, and is 0.16-0.18 MPa.
Working mode of medium-high pressure area energy storage peak clipping water supply system
1. Pressurizing unit water supply
At the initial stage of pressurization, a pressurization pump set is started to supply water to the water supply branches of the pressure regions, and when the water capacities of the energy storage and peak elimination integrated devices 203 of the water supply branches of the first pressure region, the second pressure region and the … … Nth pressure region respectively reach the set maximum value Q1、Q2、……QNWhen the pressure is maintained, the water pump unit stops running and enters a pressure maintaining state;
2. water supply switching between main pressurizing pump branch and auxiliary pressurizing pump branch
When the high-power main pump is in the pressurizing process H2≥H3However, the water pump frequency conversion speed regulation range hRegulating device≤hRated valueAccording to the water pump performance curve at any time, itWhen the auxiliary pump runs, the auxiliary pump with low power is automatically switched to run;
when H is present3When the constant value is reached, the water pump unit stops running and enters a pressure maintaining state;
H2is the outlet pressure of the pressurizing unit;
H3a tip pressure value for optimal economic flow to achieve the system's least favorable point;
hregulating deviceThe frequency conversion speed regulation range of the water pump unit is defined;
hrated valueThe rated frequency conversion speed regulation range of the water pump unit is set;
when the water capacities of the bag-type energy storage tanks 2031 of the peak-eliminating integrated device 203 of the first pressure area water supply branch 204, the second pressure area water supply branch, and the … … Nth pressure area water supply branch 205 respectively reach the lowest set Q1 is low、Q2 is low……QN is lowWhen the water pump unit is used, the low-power auxiliary pump is started preferentially and automatically to store energy and peak clipping, if the water quantity is insufficient, the high-power main pump is switched automatically until the energy storage and peak clipping of the first pressure area water supply branch, the second pressure area water supply branch and the … … Nth pressure area water supply branch are integratedThe water capacity of the bladder type energy storage tanks 2031 of the device 203 respectively reaches the maximum set value Q1 is low、Q2 is low……QN is lowMaintaining the pressure of the unit; and so on; the water supply unit permanently works in the optimal efficiency area of the water pump, and the main pump or the auxiliary pump is preferentially selected for supplying water.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (5)
1. The utility model provides a high-rise residence pipe network directly supplies, energy storage peak clipping, intelligent frequency conversion water supply system which characterized in that includes: the system comprises a low-pressure area pipe network water supply system, a medium-high pressure area energy storage peak clipping water supply system and a remote transmission alarm system;
the water inlet of the low-pressure area pipe network water supply system is connected with the water inlet pipeline, and the water outlet of the low-pressure area pipe network water supply system is connected with the low-pressure area water pipeline;
the water inlet of the medium-high pressure region energy storage peak clipping water supply system is connected with a water inlet pipeline, and the water outlet of the medium-high pressure region energy storage peak clipping water supply system is connected with a water pipeline for the medium-high pressure region;
the remote transmission alarm system comprises a GPRS transmission module and a server;
the GPRS transmission module can be used for receiving data signals of the medium-high voltage area energy storage peak clipping water supply system and transmitting the signals to the server, and the GPRS transmission module can also be used for receiving data signals of the server and transmitting the signals to the medium-high voltage area energy storage peak clipping water supply system;
the server comprises a data analysis module, a receiver and a transmitter; the system comprises a GPRS transmission module, a medium-high voltage region energy storage and peak clipping water supply system, a peak clipping water supply system and a peak clipping water supply system, wherein the GPRS transmission module is used for transmitting a data signal of the GPRS transmission module to the medium-high voltage region energy storage and peak clipping water supply system;
the medium-high pressure area energy storage peak clipping water supply system comprises: the water pump unit, the control cabinet, the first pressure area water supply branch, the second pressure area water supply branch and the … … Nth pressure area water supply branch; wherein N is a positive integer;
the water inlet of the water pump unit is connected with a water inlet pipeline, and the water outlet of the water pump unit is connected with the water supply branches of the pressure areas through a main pipeline;
the first pressure area water supply branch, the second pressure area water supply branch and the … … Nth pressure area water supply branch are mutually connected in parallel and are respectively connected with the main pipeline;
a water outlet pipeline of the water pump unit is provided with a pressure transmitter, and the pressure transmitter is connected with the control cabinet through a control circuit;
the control cabinet comprises; the system comprises a frequency converter, a PLC, a transmitter and a receiver; the control cabinet outputs signals to the GPRS transmission system through the transmitter and receives input signals of the GPRS transmission alarm system through the receiver; the water pump unit is connected with the water pump unit through a control circuit;
the water supply branch of each pressure area respectively comprises: the water supply device comprises a first unit water supply branch, a second unit water supply branch and an … … Mth unit water supply branch, wherein M is a positive integer; all unit water supply branches are mutually connected in parallel;
each unit water supply branch comprises a peak storage and elimination integrated device, the input end of the peak storage and elimination integrated device is connected with the water inlet pipeline of the pressure area water supply branch, and the output end of the peak storage and elimination integrated device is connected with the water inlet pipeline of the unit user;
the integrative device of energy storage peak-eliminating includes: the system comprises a bag type energy storage tank, a unit control terminal, a water inlet valve, an electric butterfly valve, a check valve and a pressure transmitter; the input end of the bag type energy storage tank is connected with a water inlet pipeline of the unit water supply branch circuit through the check valve, the electric butterfly valve and the water inlet valve in sequence; the electric butterfly valve is connected with the unit control terminal through a control circuit; the pressure transmitter is arranged on the bag-type energy storage tank and is used for measuring upper and lower limit pressure values H9、H10(ii) a The pressure transmitter is connected with the unit control terminal through a control line; wherein,
H9the lower limit pressure refers to the lower limit pressure of the energy storage and peak elimination integrated device of the user unit, which needs to be supplemented with pressure and water;
H10the upper limit pressure refers to the upper limit pressure reached by the energy storage and peak elimination integrated device of the user unit after the pressure and water supplement are stopped.
2. The high-rise residential pipe network direct supply, energy storage peak clipping and intelligent variable-frequency water supply system according to claim 1, characterized in that: the low-pressure area pipe network water supply system includes: the water pump unit, the water replenishing pool, the connecting pipeline and the control cabinet;
the water pump unit is formed by connecting a plurality of water pump branches in parallel, each water pump branch is formed by sequentially connecting a water pump, a butterfly valve and a silencing check valve in series, a water inlet of the water pump unit is connected with the water replenishing pool, and a water outlet of the water pump unit is connected with each low-pressure area user branch through a main pipeline;
an electric butterfly valve A is arranged on a water inlet pipeline of the water pump unit and is connected with the control cabinet through a control line; an electric butterfly valve B is arranged on the main pipeline and in front of a connection point of a water outlet of the water pump unit and the main pipeline;
a pressure transmitter is arranged on a water outlet of the water pump unit and is connected with the control cabinet through a control circuit; the control cabinet is connected with the water pump unit through a control circuit.
3. The high-rise residential pipe network direct supply, energy storage peak clipping and intelligent variable-frequency water supply system according to claim 2, characterized in that: and a valve is arranged on the user branch of the low-pressure area.
4. The high-rise residential pipe network direct supply, energy storage peak clipping and intelligent variable-frequency water supply system according to claim 1, characterized in that: the water pump unit is mainly formed by connecting a plurality of main pressurizing pump branches and a plurality of auxiliary pressurizing pump branches in parallel;
each pressurizing main pump branch is formed by sequentially connecting a manual butterfly valve, a pressurizing main pump, a manual butterfly valve and a silencing check valve in series;
each auxiliary pressurizing pump branch is formed by sequentially connecting a manual butterfly valve, an auxiliary pressurizing pump, a manual butterfly valve and a silencing check valve in series;
the water inlet end of the water pump unit is connected with a non-negative pressure energy storage device through an electric butterfly valve, and the electric butterfly valve is connected with the control cabinet of the medium-high pressure area energy storage peak clipping water supply system through a control circuit.
5. A method for using the high-rise residential pipe network direct supply, energy storage peak clipping and intelligent variable-frequency water supply system according to any one of claims 1 to 4, comprising the following aspects:
the working mode of the low-pressure area pipe network water supply system is as follows: the method comprises two working modes:
1. supplying water by a low-pressure area pipe network water supply system:
when H is satisfied1When the pressure is higher than H8 and higher than H7, the electric butterfly valve A is closed, the electric butterfly valve B is opened, and the electric butterfly valve A and the electric butterfly valve B are directly communicated to the low-pressure area through the pipe network
Supplying water;
2. pool water supply
When H cannot be satisfied1When the water supply is more than H8 and more than H7, the electric butterfly valve A is opened, the electric butterfly valve B is closed, and the water replenishing pool supplies water to the low-pressure area through the water pump unit;
wherein H1The pressure of water inlet of the main pipeline is indicated;
h7 is a pressure protection value set for avoiding directly taking water in a pipe network when a non-negative pressure pump works;
h8 is the minimum pressure value of a city water supply network specified by the state, and is 0.16-0.18 MPa;
working mode of medium-high pressure area energy storage peak clipping water supply system
1. Pressurizing unit water supply
Starting a pressurizing pump set to supply water to the water supply branches of the pressure areas at the initial pressurizing stage, and when the water capacities of the bag-type energy storage tanks of the peak-eliminating integrated devices of the water supply branches of the first pressure area, the water supply branches of the second pressure area and the water supply branches of the … … Nth pressure area respectively reach a set maximum value Q1、Q2、……QNWhen the pressure is maintained, the water pump unit stops running and enters a pressure maintaining state;
water supply switching between main pressurizing pump branch and auxiliary pressurizing pump branch
When the high-power main pump is in the pressurizing process H2≥H3However, the water pump frequency conversion speed regulation range hRegulating device≤hRated valueAccording to the water pump performance curve at any time, itWhen the auxiliary pump runs, the auxiliary pump with low power is automatically switched to run;
when H is present3When the constant value is reached, the water pump unit stops running and enters a pressure maintaining state; wherein,
H2is the outlet pressure of the pressurizing unit;
H3a tip pressure value for optimal economic flow to achieve the system's least favorable point;
hregulating deviceThe frequency conversion speed regulation range of the water pump unit is defined;
hrated valueThe rated frequency conversion speed regulation range of the water pump unit is set;
when the water capacities of the bag-type energy storage tanks of the energy storage and peak elimination integrated devices of the first pressure area water supply branch, the second pressure area water supply branch and the … … Nth pressure area water supply branch respectively reach the lowest set value Q1 is low、Q2 is low……QN is lowWhen in use, the water pump set can preferentially and automatically start the low-power auxiliary pump to carry out energy storage and peak clipping,if the water quantity is not enough, the high-power main pump is automatically switched until the water capacities of the bag-type energy storage tanks of the energy storage and peak elimination integrated device of the first pressure area water supply branch, the second pressure area water supply branch and the … … Nth pressure area water supply branch respectively reach the maximum set value Q1 is low、Q2 is low……QN is lowMaintaining the pressure of the unit; and so on; the water supply unit permanently works in the optimal efficiency area of the water pump, and the main pump or the auxiliary pump is preferentially selected for supplying water.
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| CN205100306U (en) * | 2015-10-23 | 2016-03-23 | 德州市科源给水配套工程开发有限公司 | Direct -furnish of high residential building pipe network, energy storage peak clipping, intelligent variable frequency water supply system |
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Address after: 253000 Shandong Province, Dezhou City, two Road No. 22 Applicant after: SHANDONG KEYUAN LIMITED WATER SUPPLY ANCILLARY WORKS CO.,LTD. Address before: 253000 Shandong Province, Dezhou City, two Road No. 22 Applicant before: DEZHOU KEYUAN WATER SUPPLY MATCHING ENGINEERING DEVELOPMENT CO.,LTD. |
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Denomination of invention: High rise residential pipeline direct supply, energy storage peak shaving, intelligent variable frequency water supply system and its usage method Effective date of registration: 20240102 Granted publication date: 20170419 Pledgee: Qilu bank Limited by Share Ltd. Dezhou branch Pledgor: SHANDONG KEYUAN LIMITED WATER SUPPLY ANCILLARY WORKS CO.,LTD. Registration number: Y2023980075683 |