CN108144237A - A kind of intelligence hydrant system and intelligent fire hydrant hydraulic pressure control method - Google Patents
A kind of intelligence hydrant system and intelligent fire hydrant hydraulic pressure control method Download PDFInfo
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- CN108144237A CN108144237A CN201711309748.XA CN201711309748A CN108144237A CN 108144237 A CN108144237 A CN 108144237A CN 201711309748 A CN201711309748 A CN 201711309748A CN 108144237 A CN108144237 A CN 108144237A
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- ftercompction
- pressure
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 79
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- 238000009434 installation Methods 0.000 claims description 6
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- 230000009286 beneficial effect Effects 0.000 abstract description 2
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
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- 230000008901 benefit Effects 0.000 description 2
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Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/20—Hydrants, e.g. wall-hoses, wall units, plug-in cabinets
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/58—Pipe-line systems
- A62C35/64—Pipe-line systems pressurised
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C99/00—Subject matter not provided for in other groups of this subclass
- A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
- A62C99/0072—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using sprayed or atomised water
Abstract
The invention discloses a kind of intelligent hydrant systems, including high-pressure water tank, stabilized pressure pump, voltage-stabilization control system and multiple intelligent fire hydrants, the intelligence hydrant system further includes ftercompction pump, and the ftercompction pump is connected in series with stabilized pressure pump, and the ftercompction pump is connect with voltage-stabilization control system；Booster pump, hydraulic pressure sensor and information collection sending device are additionally provided on the intelligent fire hydrant, described information acquisition sending device is connect respectively with booster pump and hydraulic pressure sensor；The intelligence hydrant system further includes master station, and the master station is communicated to connect with the voltage-stabilization control system；Central node controller, the central node controller and the information collection sending device of the intelligent fire hydrant where the multiple booster pump are set between the multiple booster pump；The master station is communicated to connect with Centroid.The beneficial effects of the invention are as follows：(1) lift according to needed for fire hydrant carries out hydraulic pressure supply；(2) stabilized pressure pump and ftercompction is made to pump synthetic operation.
Description
Technical field
The present invention relates to fire-fighting domains, are specifically related to a kind of intelligent hydrant system and intelligent fire hydrant Water pressure controlled
Method processed.
Background technology
With increasing for China human mortality, in order to more people that live in limited soil, present residential quarters or do
Public commerce area is all the very high of construction, but because the too high problem of floor is also following, fire fighting device problem
It is exactly wherein one of problem, because the growth of population and the underground water that increases of factory excessively use, too low of hydraulic pressure in fire hydrant
Can be used in lowrise layer, auxiliary equipment is required for can be only achieved certain hydraulic pressure when high-storey catches fire, reuse fire hydrant into
Row fire extinguishing, but the Time is money in face of fire fast changing again, often when preparation or installation, fire is again
It is spread again, very big trouble is brought, and delayed the first time of fire fighting, personal safety to fire fighting work
It cannot be protected with property.
In the prior art, the design of some fire hydrants can set booster pump on fire hydrant, to further increase fire hydrant
Water outlet hydraulic pressure, make flow punching penetrate it is farther, conducive to fire extinguishing.But booster pump is added on fire hydrant and also brings along a system
The problem of row, for example when booster pump is excessive with water hydraulic pressure, stabilized pressure pump is not enough to be supplied in the more water of unit interval inner support
Booster pump, so as to cause water source unstable situations such as, occur.
Invention content
It is an object of the present invention to provide a kind of intelligent hydrant system and intelligent fire hydrant hydraulic pressure control sides
Method so that fire demand water can be supplied according to the hydraulic pressure of intelligent fire hydrant demand.
Specifically, the present invention is achieved through the following technical solutions：
A kind of intelligence hydrant system, disappears fire including high-pressure water tank, stabilized pressure pump, voltage-stabilization control system and multiple intelligence
Bolt, each intelligent hydrant installation is in building difference floor, which is characterized in that the intelligence hydrant system also wraps
Ftercompction pump is included, the ftercompction pump is connected in series with stabilized pressure pump, and the ftercompction pump is connect with voltage-stabilization control system；Described
Booster pump, hydraulic pressure sensor and information collection sending device, described information acquisition sending device are additionally provided on intelligent fire hydrant
It is connect respectively with booster pump and hydraulic pressure sensor；The intelligence hydrant system further includes master station, the master station with it is described
Voltage-stabilization control system communicates to connect；Central node controller, the Centroid control are set between the multiple booster pump
The information collection sending device of device and the intelligent fire hydrant where the multiple booster pump；The master station leads to Centroid
Letter connection.
Preferably, the stabilized pressure pump is also connect with voltage-stabilization control system, the voltage-stabilization control system includes PLC technology
Device, frequency converter, PID regulator and signal receiver, the signal receiver receive the hydraulic signal that master station is sent, and
The hydraulic signal is converted into feedback signal and transports to PID regulator；The PID regulator is to hydraulic signal and given pressure
It is compared, obtains deviation, send out and output signal to frequency converter and programmable controller accordingly；The frequency converter and can
Programmable controller is mediated the frequency and water pump number of units of water pump group according to control signal；The voltage-stabilization control system also wraps
Liquid level control sensor and fluid level controller are included, the liquid level control sensor is arranged on high-pressure water tank inner wall, for real-time
Waterlevel data in high-pressure water tank is detected, and sends it to fluid level controller, the fluid level controller is formed according to related data and controlled
Signal processed reaches programmable controller.
A kind of intelligence fire hydrant hydraulic pressure control method, using aforementioned intelligent hydrant system, the method includes steps
Suddenly：
Step 1：Master station receives scene of a fire range information；
Step 2：Master station determines intelligence fire hydrant according to scene of a fire range information and the location information of intelligent fire hydrant
Demand lift；
Step 3：Lift determines supercharging pump power according to demand.
Preferably, after step 3, the method further includes：
Step 4：According to pressure difference before and after the demand lift and booster pump, judge whether to need to increase ftercompction pump, if needing
Will, then open ftercompction pump by predetermined power.
Preferably：
Central node controller obtains characteristic curve coefficient, operational efficiency maximum value and and the operational efficiency of booster pump
The corresponding efficiency feed flow of maximum value, wherein the characteristic curve coefficient is pressure difference before and after booster pump and booster pump transport Stream
The characteristic curve coefficient of amount；
Based on characteristic curve coefficient, operational efficiency maximum value and efficiency feed flow, the efficient of supercharging pump operation is obtained
Section；
Current booster pump actual flow is calculated, and judges whether the actual flow is efficiency attenuation flow；When mesh reality
Flow is decayed flow for efficiency, and when in the high efficiency range, obtains actual flow in the corresponding delivery system of high efficiency range
Number, and booster pump is controlled to be run with this Transfer coefficient.
Preferably, it obtains the flow Q of pressure differential deltap P before and after booster pump water outlet and current booster pump and pre-saves
Booster pump metered flow value Qd, calculateValue, ifLess than preset first threshold, then ftercompction pump is increased.
Preferably, the central node controller obtains the output of the output frequency and booster pump of booster pump frequency converter
Power, voltage-stabilization control system obtains the output frequency and output power of stabilized pressure pump and ftercompction pump, according to formula
Determine the actual flow of booster pump, wherein QfFor the actual flow of booster pump, b0、b1、b2It is preset first turn
Change coefficient, f is the mean value of the output frequency of booster pump, stabilized pressure pump and ftercompction pump, PoFor the defeated of booster pump, stabilized pressure pump and ftercompction pump
Go out the mean value of power；
According to formula
Determine the practical lift of booster pump, wherein HfFor the practical lift of booster pump, b0、b1、b2It is preset first turn
Change coefficient, c0、c1、c2For preset second conversion coefficient, f is the mean value of the output frequency of booster pump, stabilized pressure pump and ftercompction pump,
PoThe mean value of output power for booster pump, stabilized pressure pump and ftercompction pump, ρ are the density of water, and g is acceleration of gravity.
Preferably, the water outlet in the intelligent fire hydrant also sets up temperature sensor, for monitoring fire hydrant water outlet
Mouthful section temperature, the central node controller according to the actual flow of booster pump, the practical lift of booster pump, from supercharging
The operating current of the booster pump obtained on pump, the operating voltage of booster pump, the section pressure at booster pump inlet and outlet
The section temperature at booster pump inlet and outlet obtained by force and from temperature sensor, according to formula
Determining booster motor efficiency, wherein η is booster motor efficiency, and ρ is the density of water, and g is acceleration of gravity,
QfFor the actual flow of booster pump, HfFor the practical lift of booster pump, I is the operating current of booster pump, and U is the work of booster pump
Voltage,For average isothermal coefficient,For the specific heat of water, p1、p2Section pressure respectively at booster pump inlet and outlet
By force, T1、T2Section temperature respectively at booster pump inlet and outlet,Average specific volume for water.
Preferably, after the step 4, the method further includes：
S41, obtain stabilized pressure pump pressure head and flow between linear relation, ftercompction pump pressure head and flow between
Linear relation；S42, with reference to the stabilized pressure pump pressure head and flow between linear relation, the ftercompction pump pressure head with
Linear relation between flow obtains the discharge relation formula of the stabilized pressure pump and ftercompction pump；S43, to the stabilized pressure pump
It is adaptively adjusted with the discharge relation formula of ftercompction pump, is closed with the frequency for obtaining the ftercompction pump and the stabilized pressure pump
It is formula；S44, the frequency for monitoring the stabilized pressure pump in real time simultaneously pump the frequency relation formula with the stabilized pressure pump according to the ftercompction, defeated
Go out to control signal to adjust the frequency of the ftercompction pump.
Preferably,
According to the linear relation between the pressure head and flow of the stabilized pressure pumpIt is pumped with the ftercompction
Pressure head and flow between linear relationTo determine coefficient a11、a21、 b11、b21, according to formula
To determine coefficient c11、c21；
According to formula
To determine the frequency of ftercompction pump, wherein fbFor ftercompction pump frequency, fwFor voltage stabilizing pump frequency.
The beneficial effects of the invention are as follows：(1) can hydraulic pressure supply be carried out according to the lift needed for fire hydrant；(2) make voltage stabilizing
Pump and ftercompction pump synthetic operation, avoid the occurrence of the problem of hydraulic pressure is unstable.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will to embodiment or
Attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
Some embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to these attached drawings.
Fig. 1 is intelligent hydrant system structure diagram provided by the invention；
Fig. 2 is the intelligent fire hydrant structure schematic diagram that invention provides；
Fig. 3 is voltage-stabilization control system structure diagram provided by the invention；
Fig. 4 provides a kind of intelligent fire hydrant hydraulic pressure control the first schematic diagram of method for the present invention；
Fig. 5 provides a kind of intelligent fire hydrant hydraulic pressure control the second schematic diagram of method for the present invention.
Reference sign
Further clearly to illustrate the connection relation between the structure of the present invention and each component, the following drawings is given
Label, and be illustrated.
Valve 1；Groove body 2；Hydraulic pressure sensor 3；Integrated package 4；Transmitter 5；Display 6；Display screen 7；Alarm 8；Receiver
9；Water outlet 10；Water inlet 11.
By above-mentioned reference sign, with reference to the embodiment of the present invention, it can be more clearly understood and illustrate this hair
Bright technical solution.
Specific embodiment
Here exemplary embodiment will be illustrated in detail, example is illustrated in the accompanying drawings.Following description is related to
During attached drawing, unless otherwise indicated, the same numbers in different attached drawings represent the same or similar element.Following exemplary is implemented
Embodiment described in example does not represent all embodiments consistent with the present invention.On the contrary, they are only and such as institute
The example of the consistent device and method of some aspects being described in detail in attached claims, of the invention.
It is only merely for the purpose of description specific embodiment in terminology used in the present invention, is not intended to limit the invention.
It is also intended in the present invention and " one kind " of singulative used in the attached claims, " described " and "the" including more
Number form formula, unless context clearly shows that other meanings.It is also understood that term "and/or" used herein refers to simultaneously
Comprising one or more associated list items purposes, any or all may be combined.
It will be appreciated that though various information, but this may be described using term first, second, third, etc. in the present invention
A little information should not necessarily be limited by these terms.These terms are only used for same type of information being distinguished from each other out.For example, not taking off
In the case of the scope of the invention, the first information can also be referred to as the second information, and similarly, the second information can also be claimed
For the first information.Depending on linguistic context, word as used in this " if " can be construed to " ... when " or
" when ... " or " in response to determining ".
The present invention will be described in detail by way of examples below.
A kind of intelligence hydrant system, as shown in Figure 1, including high-pressure water tank, stabilized pressure pump, voltage-stabilization control system and multiple
Intelligent fire hydrant, for each intelligent hydrant installation in building difference floor, the intelligence hydrant system further includes benefit
Press pump, the ftercompction pump are connected in series with stabilized pressure pump, and the ftercompction pump is connect with voltage-stabilization control system；In the intelligence
Booster pump, hydraulic pressure sensor and information collection sending device, described information acquisition sending device difference are additionally provided on fire hydrant
It is connect with booster pump and hydraulic pressure sensor；The intelligence hydrant system further includes master station, the master station with it is described steady
Pressure control system communicates to connect；Central node controller, the central node controller are set between the multiple booster pump
The information collection sending device of intelligent fire hydrant where with the multiple booster pump；The master station communicates with Centroid
Connection.
The information collection sending device being respectively equipped on each booster pump can acquire the hydraulic pressure information on respective booster pump with
And can be obtained from booster pump supercharging pump operation when stream parameters, the stream parameters include booster pump before and after pressure difference, increase
The real-time traffic of press pump and the power of the real-time frequency of booster pump and booster pump, each information collection sending device pass through wireless
Or wired communication mode is in communication with each other connection by central node controller, and under the control of central node controller, coordinates
Each supercharging pump operation in the LAN, that is, form one group of local Internet of Things based on booster pump.The local Internet of Things is
WiFi networks, blueteeth network, Z-wave networks or Zigbee network, can form star network, tree network, mesh network
Deng.
The information collection sending device of the booster pump receives booster pump by the hydraulic pressure sensor on intelligent fire hydrant
Hydraulic pressure data, described information acquisition sending device are connect with booster pump, and shown information collection sending device also receives booster pump and exists
The real-time frequency of real-time traffic and booster pump and the power of booster pump during actual motion, these data constitute LAN
Operating parameter.The various booster pump data received are transferred to master station by central node controller, so that master station carries out
The calculating and analysis of data, the central node controller receives the control information that master station is sent, according to the control information
Control to adjust the operating status of each booster pump.
Central node controller forms big data processing and the object transmitted according to the operating parameter received by internet
Networking connection.The workload of operating point and performance are aggregated into remote scheduling center to be scheduled, to reduce manpower, carried
The high level of resources utilization, and equipment is precisely controlled, make total transport cost and total energy consumption minimum, improve operating efficiency.
The central node controller of multiple LANs forms wide area network, each Centroid control by internet and master station
Device processed is remotely connect with master station, sends the operating parameter of this LAN in real time to master station.Wide Area Netweork is can realize
A kind of network of internet function, such as 3G network, 4G networks or cable network.
Further, the intelligent hydrant system is also sensed with the multiple fire alarms being distributed on the different location of building
Device connects, and to detect the fire alarm information in building, the fire perceiving device includes temperature sensor, smoke sensor device, infrared biography
Sensor etc. can detect the sensor of fire physical quantity；The intelligence fire hydrant is as shown in Fig. 2, further include, valve 1, groove body 2, water
Pressure sensor 3, integrated package 4, transmitter 5, display 6, display screen 7, alarm 8, receiver 9, water outlet 10, water inlet 11,
The bottom of the valve 1 is provided with water inlet 11, and the side of valve 1 is provided with water outlet 10 and groove body 2, and the valve 1 connects with groove body 2
The place of connecing is additionally provided with hydraulic pressure sensor 3, and the hydraulic pressure sensor 3 passes in real time for detecting hydraulic pressure in real time with regard to hydraulic pressure data
Integrated package 4 is transported to, the hydraulic pressure sensor 3 is by hydraulic pressure sensor core, diaphragm and circuit board group into the integrated package 4 is set
In groove body 2, transmitter 5, receiver 9 and display 6 are provided on the integrated package 4, list is provided on the display 6
Piece machine, display screen 7 and alarm 8, the hydraulic pressure sensor 3 are electrically connected with integrated package 4, the hydraulic pressure sensor 3, integrated package 4
It is electrically connected to a power source, the intelligence fire hydrant, which also includes at least, receives terminal, and the hydraulic pressure sensor is used to detect the fire that disappears
The hydraulic pressure value of bolt itself, and pass through transmitter and be sent to master station, the reception terminal can receive master station and be sent to the fire that disappears
The information of bolt.The multiple fire perceiving device is connect with master station, and the multiple intelligence fire hydrant is connect with master station, described
After master station receives the warning message that all kinds of fire perceiving devices are sent, the scene of a fire is determined according to the location information of fire perceiving device
Range boundary, and according to the scene of a fire range boundary information and the location information of intelligent fire hydrant, determine the need of intelligence fire hydrant
Lift is sought, the usual demand lift, which is subject to, can reach scene of a fire range boundary farthest, and the demand lift is sent to
Terminal is received, the terminal that receives is the portable radio receiver for receiving master control station information of firefighter.The intelligence
Lithium battery and wireless charging module can be additionally provided in the groove body 2 of fire hydrant, the lithium battery is used for the intelligent fire hydrant
In component power supply, the lithium battery connect with wireless charging module.Match with the wireless charging module of the intelligent fire hydrant
Set is provided with wireless charger, and wireless charger is connected with wireless charging module by wireless power conveying technology.
A flat coil is respectively provided with inside the wireless charger and wireless charging module, in wireless charger
Coil magnetic induction generated by alternating current change, make coil inside wireless charging module that magnetic occur by electromagnetic induction
The variation of flux generates sensing electric current, charges for the lithium battery.
Further, after the hydraulic pressure value detected is sent to master station by the hydraulic pressure sensor 3, master station can be real
When the hydraulic pressure value of current intelligent fire hydrant is shown on master station screen, send out police to monitoring personnel when hydraulic pressure value has exception
Report realizes the automatic detecting to intelligent fire hydrant in this way, does not need to expend a large amount of manpower and materials to spreading in the cell
Fire hydrant in building everywhere carries out manual inspection, can realize intelligent fire hydrant inspection comprehensive in real time.
Further, as shown in figure 3, the stabilized pressure pump is also connect with voltage-stabilization control system, the voltage-stabilization control system packet
Programmable controller, frequency converter, PID regulator and signal receiver are included, the signal receiver receives what master station was sent
Hydraulic signal, and the hydraulic signal is converted into feedback signal and transports to PID regulator；The PID regulator is to hydraulic signal
It is compared with given pressure, obtains deviation, sent out and output signal to frequency converter and programmable controller accordingly；It is described
Frequency converter and programmable controller are mediated the frequency and water pump number of units of water pump group according to control signal；The voltage stabilizing control
System processed further includes liquid level control sensor and fluid level controller, and the liquid level control sensor is arranged on high-pressure water tank inner wall,
For detecting waterlevel data in high-pressure water tank in real time, and fluid level controller is sent it to, the fluid level controller is according to dependency number
Programmable controller is reached according to control signal is formed.
Further, the present invention also provides a kind of intelligent fire hydrant hydraulic pressure control method, the intelligence of the foregoing description is used
Hydrant system, as shown in figure 4, the method includes the steps：
S1：Master station receives scene of a fire range information；
The scene of a fire range information is by being distributed in the induction range institute of the fire perceiving device of different location in building really
It is fixed.Specifically, using the fire alarm distance of reaction as radius, multiple first can be made using each fire alarm as the center of circle
Circle, then the covered range of each first circle is corresponding fire alarm induction range, it is believed that there are fire behaviors in the range of being somebody's turn to do.
It determines the union of each fire alarm induction range, the union is determined as scene of a fire range.
S2：Master station determines the demand of intelligence fire hydrant according to scene of a fire range information and the location information of intelligent fire hydrant
Hydraulic pressure.
Maximum distance of the intelligent fire hydrant apart from the scene of a fire volume edges is determined as to the demand of the intelligent fire hydrant
Hydraulic pressure can ensure that the intelligence fire hydrant can cover scene of a fire range comprehensively in this way.
S3：Hydraulic pressure determines supercharging pump power according to demand.
It specifically, can be according to formula
Determine demand hydraulic pressure intensity, wherein HxhFor demand hydraulic pressure intensity, AdFor water band resistivity, LdFor water strip length, qxhFor
Water flow is projected, B is hydraulic giant flow characteristics coefficient, can be by tabling look-up to obtain, HskFor fire hydrant bolt mouth head loss, usually
2mH2O (i.e. 2m water columns pressure), A are fire hydrant exit area, and R is fire hydrant exit radius, and J is unit hydraulic slope,
LdsThe water strip length that fire hydrant to pre-save uses when measuring, P1And P2When the fire hydrant respectively pre-saved measures
In fire hydrant mouth and the hydraulic pressure value measured in water with water outlet, S is current intelligent fire hydrant apart from current scene of a fire volume edges
Farthest value, k is empirical coefficient, and Δ H is the vertical height of hydraulic giant injection when the fire hydrant pre-saved measures, and γ is advance
The angle of hydraulic giant injection when the fire hydrant of preservation measures.Pass through pre-set demand hydraulic pressure intensity and supercharging pump power again
The table of comparisons determines the power of booster pump.
Further, as shown in figure 5, after S3, the method further includes：
S4：Pressure difference before and after lift and booster pump according to demand judges whether to need to increase ftercompction pump, if desired, then by pre-
If power opens ftercompction pump.
Wherein demand lift is farthest value S of the current intelligence fire hydrant apart from current scene of a fire volume edges in S3.In reality
Border is in use, the hydraulic pressure in fire hydrant carries out voltage stabilizing by stabilized pressure pump always, when further using booster pump to the water in fire hydrant
When carrying out supercharging outwardly, it may appear that stabilized pressure pump is not enough to provide " enough " situations that water is used for booster pump, at this moment leads to
Stabilized pressure pump is often made to increase voltage regulated power to provide enough hydraulic pressure.For fire-fighting scene, usually in a manner of " disregarding cost " into
Row water source provides, and in order to adapt to this wilderness demand to water, usual stabilized pressure pump can be held with maximum power operation or directly
Ftercompction pump is opened, water more as possible is supplied.But the problem that can be brought is done so, i.e., can lead to water in hydraulic pipeline
Press through big and lead to happening for pipelines from bursting, once situation as occurring, not only the hydraulic pressure of fire hydrant can not ensure,
Also precious fire demand water is caused to be wasted.In order to avoid situation as appearance, the letter of intelligent fire hydrant in the present invention
Breath acquisition sending device obtains booster pump 2 and is discharged front and rear pressure differential deltap P and current increasing during the outside jetting of fire hydrant
The flow Q of press pump, and combine the booster pump metered flow value Q pre-savedd, calculateValue, ifLess than pre-
If first threshold, then increase ftercompction pump.
Further, after ftercompction pump is opened, the water system being made of ftercompction pump, stabilized pressure pump and booster pump can go out
Existing of short duration unstable state, from the perspective of nozzle outlet, the actual flow and actual range of fire hydrant can be one
Fixed period changes, at this moment, according to the booster pump, stabilized pressure pump and ftercompction pump output frequency, calculate actual flow and
Practical lift；Booster motor efficiency is calculated according to actual flow and actual range, judges booster motor efficiency whether pre-
If high efficiency range, if it is not, then by booster motor Efficiency correction to high efficiency range.
Can be obtained by central node controller the characteristic curve coefficient of booster pump, operational efficiency maximum value and with fortune
The corresponding efficiency feed flow of line efficiency maximum value, wherein the characteristic curve coefficient is pressure difference and booster pump before and after booster pump
The characteristic curve coefficient of feed flow；Based on characteristic curve coefficient, operational efficiency maximum value and efficiency feed flow, obtain
It is pressurized the high efficiency range of pump operation；Current booster pump actual flow is calculated, and judges whether the actual flow is efficiency attenuation
Flow；When mesh actual flow is decayed flow, and when in the high efficiency range, obtain actual flow in high efficiency range for efficiency
Corresponding Transfer coefficient, and booster pump is controlled to be run with this Transfer coefficient.Wherein, the characteristic curve for making booster pump is existing
Technology, the present invention repeat no more.
Understandably, booster pump needs to be run according to the actual conditions of external environment, when the required water of external environment
When larger, then the target feed flow of booster pump output increases；On the contrary when the required water of external environment is smaller, then increase
The target feed flow of press pump output is reduced.I.e. booster pump adjusts feed flow according to external environment demand, so as to cause each
The moment target feed flow of output differs.It is efficiency to be pressurized the corresponding booster pump feed flow of the way maximum value
Feed flow, after supercharging the way reaches maximum value, supercharging the way can decay, in this attenuation process
Corresponding feed flow is efficiency attenuation flow.Booster pump actual flow is obtained, and judges whether booster pump actual flow is to decline
During subtracting efficiency attenuation flow, with determine booster pump actual flow whether be booster pump feed flow reach maximum value with
Flow afterwards.
When target feed flow is decayed flow, and when in the high efficiency range, obtain target feed flow and exist for efficiency
The corresponding Transfer coefficient of high efficiency range, and booster pump is controlled to be run with this Transfer coefficient.
Further, when booster pump actual flow is efficiency attenuation flow, that is, it is to increase to illustrate mesh booster pump actual flow
Press pump feed flow reaches the later flow of maximum value.When target feed flow is corresponding with flow value a certain in high efficiency range, i.e.,
Target feed flow is in high efficiency range, by formulaThe delivery system of this flow corresponded in high efficiency range can be calculated
Number, wherein SzFor booster pump Transfer coefficient, Q is booster pump present flow rate, PzThe power current for booster pump, obtains this delivery system
Number, and booster pump is controlled to be run with this Transfer coefficient.Understandably, in this high efficiency range, different flow is all one corresponding
Different Transfer coefficients, when being run with this corresponding Transfer coefficient, supercharging the way can reach maximum.
Further, the central node controller obtain booster pump frequency converter output frequency and booster pump it is defeated
Go out power, voltage-stabilization control system obtains the output frequency and output power of stabilized pressure pump and ftercompction pump, according to formula
Determine the actual flow of booster pump, wherein QfFor the actual flow of booster pump, b0、b1、b2It is preset first turn
Change coefficient, f is the mean value of the output frequency of booster pump, stabilized pressure pump and ftercompction pump, PoFor the defeated of booster pump, stabilized pressure pump and ftercompction pump
Go out the mean value of power.
According to formula
Determine the practical lift of booster pump, wherein HfFor the practical lift of booster pump, b0、b1、b2It is preset first turn
Change coefficient, c0、c1、c2For preset second conversion coefficient, f is the mean value of the output frequency of booster pump, stabilized pressure pump and ftercompction pump,
PoThe mean value of output power for booster pump, stabilized pressure pump and ftercompction pump, ρ are the density of water, and g is acceleration of gravity.
Further, temperature sensor is also set up in the water outlet of the intelligent fire hydrant, gone out for monitoring fire hydrant
The section temperature at the mouth of a river, the central node controller according to the actual flow of booster pump, the practical lift of booster pump, from increasing
The operating current of the booster pump obtained on press pump, the operating voltage of booster pump, the section pressure at booster pump inlet and outlet
The section temperature at booster pump inlet and outlet obtained by force and from temperature sensor, according to formula
Determining booster motor efficiency, wherein η is booster motor efficiency, and ρ is the density of water, and g is acceleration of gravity,
QfFor the actual flow of booster pump, HfFor the practical lift of booster pump, I is the operating current of booster pump, and U is the work of booster pump
Voltage,For average isothermal coefficient,For the specific heat of water, p1、p2Section pressure respectively at booster pump inlet and outlet
By force, T1、T2Section temperature respectively at booster pump inlet and outlet,Average specific volume for water.
After the efficiency that booster motor is calculated, judge booster motor efficiency whether in preset high efficiency range
(be usually more than 75%), if it is not, then by adjusting the mode of supercharging pump frequency by booster motor Efficiency correction to high efficient district
Between.
Further, after the S4, the method further includes：
The relational expression of stabilized pressure pump and ftercompction pump is obtained, determines ftercompction pump frequency.
Specifically, including S41, obtain stabilized pressure pump pressure head and flow between linear relation, ftercompction pump pressure head with
Linear relation between flow；S42, with reference to the stabilized pressure pump pressure head and flow between linear relation, the ftercompction
Linear relation between the pressure head and flow of pump obtains the discharge relation formula of the stabilized pressure pump and ftercompction pump；It is S43, right
The discharge relation formula of the stabilized pressure pump and ftercompction pump is adaptively adjusted, to obtain the ftercompction pump and the voltage stabilizing
The frequency relation formula of pump；S44, the frequency for monitoring the stabilized pressure pump in real time simultaneously pump the frequency with the stabilized pressure pump according to the ftercompction
Rate relational expression, output control signal adjust the frequency of the ftercompction pump.
Specifically, according to formula
To determine the frequency of ftercompction pump, wherein fbFor ftercompction pump frequency, fwFor voltage stabilizing pump frequency.Wherein coefficient a11、a21、
b11、b21According to the linear relation between the pressure head and flow of the stabilized pressure pumpWith ftercompction pump
Linear relation between pressure head and flowIt determines, wherein HwRepresent the pressure head of stabilized pressure pump, QwIt represents
The flow of stabilized pressure pump, HbRepresent the pressure head of ftercompction pump, QbIt represents the flow of ftercompction pump, dispatches from the factory to stabilized pressure pump or ftercompction pump
Before detection or installation during detection, according to different groups of Qw-HwValue and Qb-HbValue is inserted in formulaAnd public affairs
FormulaFit coefficient a11、a21、b11、b21.Coefficient c11、c21By formula
It determines, wherein fw,sBe stabilized pressure pump dispatch from the factory test when, when Flow rate of steady pressure pump be Qw,sWhen, it is obtained by actual measurement
Stabilized pressure pump working frequency；fb,sBe stabilized pressure pump dispatch from the factory test when, when ftercompction pump discharge be Qb,sWhen, by surveying obtained benefit
Press pump working frequency, can also be according to different flow value Qw,sWith working frequency fw,sObtain multiple c11Value, then it is more to what is obtained
A c11Value is averaged to obtain final c11Value；It can be according to different flow value Qb,sWith working frequency fb,sObtain multiple c21
Value, then multiple c to obtaining21Value is averaged to obtain final c21Value.Finally, by coefficient a11、a21、b11、b21、 c11、c21
It is stored in advance in voltage-stabilization control system, is transferred in time when being calculated for master station.In this way, it is possible to it is pumped out in voltage stabilizing
In the case of existing pressure supply is insufficient, according to the current working frequency of stabilized pressure pump and the relationship of ftercompction pump work frequency, control ftercompction pump
Working frequency by calculating works, and avoids the occurrence of the excessive danger that water supply pipe is caused to burst of ftercompction pump pressure supply, also keeps away
Exempt from ftercompction pump pressure supply deficiency occur and do not have the effect for supporting fire hydrant hydraulic pressure.
Using between multiple booster pumps provided by the invention set central node controller structure so that booster pump with
Other booster pumps and central node controller communication in entire LAN can grasp the operation shape of each booster pump in real time
State prevents water pump caused by supercharging pump group pressure imbalance from damaging, the service life of water pump in raising system.Centroid control
The operating parameter of each booster pump can be sent to master station by device processed, and intelligent hydrant system is made to keep good working order.It is multiple
LAN forms wide area network with master station, and each central node controller is remotely connect with master station, sends this in real time to master station
The operating parameter of LAN realizes remote monitoring.Realization task peak or in emergency circumstances booster pump scheduling.
Using it is provided by the invention with the fire hydrant of booster pump by the way of, can reach fire hydrant facility hydraulic pressure
The standard used will not can only be used in lowrise layer because of hydraulic pressure in fire hydrant facility is too low, not needed to when high-storey catches fire
Interim installation auxiliary equipment, will not delay the first time of fire fighting, will not spread fire, personal safety and property obtain
To guarantee, the present apparatus is easy to operate, is applicable in any region location, economical and practical, maintenance and repair is all very convenient.
In a manner that stabilized pressure pump provided by the invention is connect with voltage-stabilization control system, realize water supply from zero to maximum
Between step-less adjustment, system is made to always work in maximum energy-saving state, " with how much water, for how much water ".High-power stabilization press pump
Motor can soft start be realized by frequency converter, to power grid and water route pipe network without impact, greatly prolong stabilized pressure pump, stabilized pressure pump electricity
The service life of machine, water route pipe network and other control devices.Stabilized pressure pump and the recyclable alternate run of ftercompction pump, it is each balanced
The average operation time of pump, avoid water pump rust.System running pressure is stablized, and control accuracy is high.
Intelligence fire hydrant hydraulic pressure control method proposed by the present invention, conveys according to the front and rear pressure difference of booster pump and booster pump
Characteristic curve parameter, operational efficiency maximum value and the efficiency feed flow corresponding with operational efficiency maximum value of flow obtain
The high efficiency range of pump operation is pressurized, in this section, different feed flows corresponds to different Transfer coefficients.When booster pump
Efficiency attenuation flow of the target feed flow after maximum value is reached for supercharging the way, and in the high efficiency range
When, control booster pump is run with this target feed flow Transfer coefficient corresponding with high efficiency range, so as to fulfill supercharging pump operation
Efficiency reaches the corresponding maximal efficiency of this flow, improves the transfer efficiency of booster pump, reduces energy consumption.
Intelligence fire hydrant hydraulic pressure control method provided in an embodiment of the present invention is by increasing, subtracting the quantity of stabilized pressure pump, it can be ensured that
Stabilized pressure pump all works under all loading condictions on highest operating point, improves the working efficiency of stabilized pressure pump, and stabilized pressure pump number
The rational allocation of amount considerably reduces unnecessary wasting of resources phenomenon；Can also prevent the motor of stabilized pressure pump cannot normally transport
It goes and overloads under low loading conditions so that system operation is more stablized, and reduces the energy consumption of pump transport system.
The frequency conversion that intelligence hydrant system provided in an embodiment of the present invention is pumped by reading booster pump, stabilized pressure pump and ftercompction
Device output power and output frequency, power converter output, output frequency of the foundation by booster pump, stabilized pressure pump and ftercompction pump, just
The flow and lift of booster pump pump can be calculated.Its is simple in structure, need not install flowmeter can be obtained by calculation required ginseng
Number.
Intelligence fire hydrant hydraulic pressure control method provided in an embodiment of the present invention uses the actual flow and booster pump of booster pump
Practical lift push away booster motor efficiency, and introduce the section at booster pump inlet and outlet by the way that operation is counter
Temperature takes into account influence of the water temperature to booster motor efficiency after water route is overdoed, can further improve the essence of result of calculation
Exactness.
It is provided in an embodiment of the present invention intelligence fire hydrant hydraulic pressure control method can monitor in real time stabilized pressure pump frequency and according to
According to the frequency relation formula of ftercompction pump and stabilized pressure pump, the frequency of output control signal adjustment ftercompction pump.The present invention avoids causing voltage stabilizing
The phenomenon that pump and the loss of pressure head of ftercompction pump or water pump surge, increases stabilized pressure pump and ftercompction pump pump service life and reduces pump energy
Consumption.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God and any modification, equivalent substitution, improvement and etc. within principle, done, should be included within the scope of protection of the invention.
Claims (10)
1. a kind of intelligence hydrant system, which is characterized in that including high-pressure water tank, stabilized pressure pump, voltage-stabilization control system and multiple intelligence
Energy fire hydrant, each intelligent hydrant installation is in building difference floor, which is characterized in that the intelligence hydrant system
Ftercompction pump is further included, the ftercompction pump is connected in series with stabilized pressure pump, and the ftercompction pump is connect with voltage-stabilization control system；Institute
It states and booster pump, hydraulic pressure sensor and information collection sending device is additionally provided on intelligent fire hydrant, described information acquisition sends dress
It puts and is connect respectively with booster pump and hydraulic pressure sensor；The intelligence hydrant system further includes master station, the master station and institute
State voltage-stabilization control system communication connection；Central node controller, the Centroid control are set between the multiple booster pump
The information collection sending device of device processed and the intelligent fire hydrant where the multiple booster pump；The master station leads to Centroid
Letter connection.
2. it is according to claim 1 intelligence hydrant system, which is characterized in that the stabilized pressure pump also with voltage-stabilization control system
Connection, the voltage-stabilization control system include programmable controller, frequency converter, PID regulator and signal receiver, the signal
Receiver receives the hydraulic signal that master station is sent, and the hydraulic signal is converted into feedback signal and transports to PID regulator；Institute
It states PID regulator to be compared hydraulic signal and given pressure, obtains deviation, send out and output signal to frequency converter accordingly
And programmable controller；The frequency converter and programmable controller according to control signal to the frequency of water pump group and water pump number of units into
Row is reconciled；The voltage-stabilization control system further includes liquid level control sensor and fluid level controller, and the liquid level control sensor is set
It puts in high-pressure water tank inner wall, for detecting waterlevel data in high-pressure water tank in real time, and sends it to fluid level controller, the liquid level
Controller forms control signal according to related data and reaches programmable controller.
3. a kind of intelligence fire hydrant hydraulic pressure control method, using the intelligent hydrant system described in claim 2, feature exists
In, the method includes the steps：
Step 1：Master station receives scene of a fire range information；
Step 2：Master station determines that the demand of intelligence fire hydrant is raised according to scene of a fire range information and the location information of intelligent fire hydrant
Journey；
Step 3：Lift determines supercharging pump power according to demand.
4. intelligence fire hydrant hydraulic pressure control method according to claim 3, which is characterized in that after step 3, the side
Method further includes：
Step 4：According to pressure difference before and after the demand lift and booster pump, judge whether to need to increase ftercompction pump, if desired, then press
Predetermined power opens ftercompction pump.
5. according to any intelligent fire hydrant hydraulic pressure control method of claim 3~4, it is characterised in that：
Central node controller obtain the characteristic curve coefficient of booster pump, operational efficiency maximum value and with operational efficiency maximum value
Corresponding efficiency feed flow, wherein characteristic of the characteristic curve coefficient for pressure difference before and after booster pump and booster pump feed flow
Curve coefficients；
Based on characteristic curve coefficient, operational efficiency maximum value and efficiency feed flow, the high efficiency range of supercharging pump operation is obtained；
Current booster pump actual flow is calculated, and judges whether the actual flow is efficiency attenuation flow；When mesh actual flow
Decay flow for efficiency, and when in the high efficiency range, obtain actual flow in the corresponding Transfer coefficient of high efficiency range, and control
Booster pump processed is run with this Transfer coefficient.
6. according to any intelligent fire hydrant hydraulic pressure control method of claim 3~5, which is characterized in that obtain booster pump
Pressure differential deltap P and current booster the flow Q pumped and the booster pump metered flow value Q pre-saved before and after water outletd, calculateValue, ifLess than preset first threshold, then ftercompction pump is increased.
7. intelligence fire hydrant hydraulic pressure control method according to claim 6, which is characterized in that the central node controller
The output frequency of booster pump frequency converter and the output power of booster pump are obtained, voltage-stabilization control system obtains stabilized pressure pump and ftercompction
The output frequency and output power of pump, according to formula
Determine the actual flow of booster pump, wherein QfFor the actual flow of booster pump, b0、b1、b2For preset first conversion coefficient,
F be booster pump, stabilized pressure pump and ftercompction pump output frequency mean value, PoOutput power for booster pump, stabilized pressure pump and ftercompction pump
Mean value；
According to formula
Determine the practical lift of booster pump, wherein HfFor the practical lift of booster pump, b0、b1、b2For preset first conversion coefficient,
c0、c1、c2For preset second conversion coefficient, f is the mean value of the output frequency of booster pump, stabilized pressure pump and ftercompction pump, PoFor supercharging
The mean value of the output power of pump, stabilized pressure pump and ftercompction pump, ρ are the density of water, and g is acceleration of gravity.
8. intelligence fire hydrant hydraulic pressure control method according to claim 7, which is characterized in that in the intelligent fire hydrant
Water outlet also sets up temperature sensor, for monitoring the section temperature of nozzle outlet, the central node controller root
According to the actual flow of booster pump, the practical lift of booster pump, the operating current of the booster pump obtained from booster pump, booster pump
Section pressure at operating voltage, booster pump inlet and outlet and the supercharging pump water inlet obtained from temperature sensor
The section temperature of mouth and water outlet, according to formula
Determine booster motor efficiency, wherein η is booster motor efficiency, and ρ is the density of water, and g is acceleration of gravity, QfTo increase
The actual flow of press pump, HfFor the practical lift of booster pump, I is the operating current of booster pump, and U is the operating voltage of booster pump,
For average isothermal coefficient,For the specific heat of water, p1、p2Section pressure respectively at booster pump inlet and outlet, T1、T2
Section temperature respectively at booster pump inlet and outlet,Average specific volume for water.
9. intelligence fire hydrant hydraulic pressure control method according to claim 8, which is characterized in that after the step 4, institute
The method of stating further includes：
S41, obtain stabilized pressure pump pressure head and flow between linear relation, ftercompction pump pressure head and flow between linear pass
It is formula；S42, with reference to the stabilized pressure pump pressure head and flow between linear relation, the ftercompction pump pressure head and flow it
Between linear relation, obtain the discharge relation formula of the stabilized pressure pump and the ftercompction pump；S43, to the stabilized pressure pump and described
The discharge relation formula of ftercompction pump is adaptively adjusted, to obtain the frequency relation formula of the ftercompction pump and the stabilized pressure pump；
S44, the frequency for monitoring the stabilized pressure pump in real time simultaneously pump the frequency relation formula with the stabilized pressure pump, output control according to the ftercompction
Signal adjusts the frequency of the ftercompction pump.
10. intelligence fire hydrant hydraulic pressure control method according to claim 9, which is characterized in that
According to the linear relation between the pressure head and flow of the stabilized pressure pumpWith the pressure of ftercompction pump
Linear relation between head and flowTo determine coefficient a11、a21、b11、b21, according to formula
To determine coefficient c11、c21；
According to formula
To determine the frequency of ftercompction pump, wherein fbFor ftercompction pump frequency, fwFor voltage stabilizing pump frequency.
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| CN111375166A (en) * | 2018-12-28 | 2020-07-07 | 温州中盟智能科技有限公司 | Intelligent fire hydrant control method and intelligent fire hydrant control system |
| CN111514501A (en) * | 2019-02-01 | 2020-08-11 | 温州中盟智能科技有限公司 | Intelligent indoor fire hydrant system and control method thereof |
| CN111659067A (en) * | 2020-05-25 | 2020-09-15 | 泉州市晋源消防水暖有限公司 | Intelligent fire hydrant system and water pressure control method thereof |
| CN112337028A (en) * | 2020-10-22 | 2021-02-09 | 南京德沃克自动化有限公司 | Fire monitor control method and system, fire monitor and fire truck |
| CN112494874A (en) * | 2021-01-20 | 2021-03-16 | 深圳市磊胜信息咨询有限公司 | Automatic change low water pressure monitoring alarm fire hydrant |
| CN113091813A (en) * | 2021-03-31 | 2021-07-09 | 杭州智缤科技有限公司 | Intelligent hardware tool detection system |
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| CN112337028A (en) * | 2020-10-22 | 2021-02-09 | 南京德沃克自动化有限公司 | Fire monitor control method and system, fire monitor and fire truck |
| CN112494874A (en) * | 2021-01-20 | 2021-03-16 | 深圳市磊胜信息咨询有限公司 | Automatic change low water pressure monitoring alarm fire hydrant |
| CN112494874B (en) * | 2021-01-20 | 2021-12-10 | 深圳市特发服务股份有限公司 | Automatic change low water pressure monitoring alarm fire hydrant |
| CN113091813A (en) * | 2021-03-31 | 2021-07-09 | 杭州智缤科技有限公司 | Intelligent hardware tool detection system |
| CN113274686A (en) * | 2021-06-01 | 2021-08-20 | 丽水市金贝聚医疗器械有限公司 | Remote control's intelligent fire hydrant system |
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