CN106400891A - NFWGIII-type multistage tank body water supply equipment - Google Patents
NFWGIII-type multistage tank body water supply equipment Download PDFInfo
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- CN106400891A CN106400891A CN201610571973.XA CN201610571973A CN106400891A CN 106400891 A CN106400891 A CN 106400891A CN 201610571973 A CN201610571973 A CN 201610571973A CN 106400891 A CN106400891 A CN 106400891A
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- tank body
- ftercompction
- negative pressure
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons, valves, in the pipe systems
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B1/00—Methods or layout of installations for water supply
- E03B1/02—Methods or layout of installations for water supply for public or like main supply for industrial use
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons, valves, in the pipe systems
- E03B7/075—Arrangement of devices for control of pressure or flow rate
Abstract
The invention discloses NFWGIII-type multistage tank body water supply equipment, which comprises a control system and a flow stabilizing tank device which is arranged between a water supply main pipe and a water discharging main pipe, wherein the flow stabilizing tank device, as a multistage tank body structure, comprises a flow stabilizing tank and a voltage supplementing tank body; a voltage supplementing capsule body is arranged in the voltage supplementing tank body; a water inlet branch pipe, which is connected to the voltage supplementing tank body, is arranged on the water supply main pipe; the water outlet of the water inlet branch pipe communicates with an opening of the voltage supplementing capsule body; the flow stabilizing tank body is connected to the voltage supplementing tank body by virtue of a negative pressure inhibiting device; the negative pressure inhibiting device is connected to the control system; and the negative pressure inhibiting device communicates with a cavity of the voltage supplementing tank body outside the voltage supplementing capsule body by virtue of a pipeline. The water supply equipment, through a cooperated operation with the multistage tank body structure, offers voltage supplementing double guarantee by virtue of the voltage supplementing capsule and gas, so that a negative-pressure inhibiting effect of municipal water supply is enhanced and the safe running of a municipal pipe network is guaranteed.
Description
Technical field
The present invention relates to supply equipment technical field, especially relate to a kind of multistage tank body supply equipment of NFWG III type.
Background technology
Traditional once supplying water is not well positioned to meet the water demand of modern city.With the continuous renewal of economic continuous development and various technology, add pipe network pressure-superposed non-negative pressure water-supply installation on the basis of original water supply and carry out secondary water-supply.Due to non-negative pressure water-supply installation water supply and energy saving, save space, pollution-free good characteristic, it is able to be widely applied by modern secondary water-supply industry.
With the continuous expansion of urbanization process, skyscraper grows with each passing day, and has supplied water into a townie large focal spot.Original municipal network pipeline once supplies water and is likely to be of reasonable effect for multi-storey building, but seems unable to do what one wishes in face of high level and small sized multiple story building.Early stage carries out second pressure water supply by methods such as air pressure, frequency conversions to skyscraper and changes urban water supply present situation, this traditional secondary water-supply method, due to the formation in pond, the many intermediate members of water tank, is unfavorable for energy-conservation and easily causes secondary pollution to water resource.Technology make rapid progress, non-negative pressure water-supply installation is born therewith.Time more than ten years being developed so far at it, this new secondary water-supply mode of non-negative pressure method of water supply because its good save land, energy-conservation, pollution-free performance, be widely applied by modern high-rise building water supplying system.
Traditional feedwater pressure charging system that early stage adopts substantially has following two modes：First, it is the method adopting " pond+water pump+elevated tank ", need the water being pressurized first to fully enter tank in municipal water, deliver to user after then being pressurizeed by constant speed pump, adjustment effect when elevated tank plays high ebb water.2nd, it is the method adopting " pond+frequency conversion speed adjusting pump ", after setting the pressure of supply water of water pump, under the control of converter, the rotating speed of water pump changes with the change of output, reduce power after reducing rotating speed, save power consumption to a certain extent.
All there is following common fault in both way of supplying water, one is the water storage facility having opening, and water quality is easily contaminated, and this secondary pollution directly affects water supply quality safety, sometimes even produces serious water pollution accident;Two is that the municipal water supply pressure generally reaching more than 20 meter of head fails to be fully utilized, and causes larger energy waste.
No-negative-pressure water supply equipment does not set tank, directly absorbs water from city planting ductwork, during equipment work, by the control mode of equipment, steady flow compensator, vacuum suppresser synergy, the suction that produces when eliminating pump working, the dynamic pressure on tap water pipe network does not affect.The structure contact with air for the isolation of total enclosing, thoroughly avoids the secondary pollution of water quality, municipal water supply overbottom pressure stackable for lift utilization, water pump is to supplement to set water supply pressure and overbottom pressure insufficient section, and energy-saving effect is obvious.
Development with industry is pipe network pressure-superposed（No negative pressure）Supply equipment is improved with stability requirement to the safety of system, and the technology of common building secondary pressurized equipment cannot meet its demand, needs to be substantially improved in the intelligence degree such as Isobarically Control, Valve controlling, monitoring device control.Currently for pipe network pressure-superposed（No negative pressure）Supply equipment operationally lacks strives the explosion stack guard technology to property, lead to pipe network service life is impacted, and easy booster causes the larger accident of ratio, and easily causes unsafe confession water environments such as pump group damage, valve damage, user's property loss.
Existing general anti-negative pressure technique adopts traditional vacuum suppresser, and frame for movement controls, and cannot find in time in system failure, leads to pipe network negative pressure to produce risk larger.Due to system delay, instantaneous delivery increases or reduces and occurs that water outlet ductwork pressure moment increases it is impossible to recover normal pressure in time, leads to city planting ductwork be caused damage, affects the pipe network life-span, increases resistance of pipe system and cause energy consumption to waste.The pressure compensation of water inlet does not have motive power, generally relies on compressed air and carries out ftercompction, effect is poor, negative pressure protective capability is limited, and when intake pressure fluctuates, easily outlet pressure is impacted.
Existing typically pipe network pressure-superposed（No negative pressure）Supply equipment is all all-sealed structure, when pump group runtime is damaged or be out of control, because not having the supplement of air pressure easily pipe network to be caused the negative pressure of subatmospheric power dangerous, leads to the water supply of whole correlation pipe network is impacted.
Chinese patent literature（The day for announcing：On August 19th, 2015, notification number：CN 104846942A）Disclose setting air pressure tank energy-conservation pipe network Pressure-superposed water supply equipment to be mainly made up of steady-flow tank, negative pressure canceller, water pump, switch board, air pressure tank, described air pressure tank is mainly made up of tank body and air bag, it is provided with sparge pipe and stretch in air bag water-filling to increase flowing and to avoid stagnant water in air pressure tank, air bag water outlet separately sets out the mouth of a river, make to form interior circulation between the water inlet in air bag and water outlet, thus ensure that water quality in air bag is excellent and probability that eliminate hydrops in normal system, stagnant water.Described switch board is used for detecting intake pressure, the discharge pressure of outfall sewer of steady-flow tank, controls the in good time action of negative pressure canceller and eliminates negative pressure, and controls automatic start-stop, frequency conversion, switching, working barrel increase and decrease and the switching of low discharge energy saver mode of water pump.
Chinese patent literature（The day for announcing：On May 28th, 2008, notification number：CN101187215）Disclose a kind of full-automatic current limiting type negative pressure-free pipe network Pressure, directly the pressurization of concatenation water pump is supplied water on pipe network, the pilot process producing secondary pollution such as store thus cancelling the water bodys such as pond, water tank and exposing；Under totally-enclosed environment, eliminating negative pressure formation condition makes equipment run under constraints, does not produce negative pressure, it is to avoid the bad impact to pipe network during operating；Even if negative pressure will be produced, the critical state producing in negative pressure also can eliminate it, prevent, the dual-use function that disappears ensures the stable smooth change of current state in pipe network, make pipe network stable operation, by qualified tap water direct is supplied to user, each uses water spot, has the outstanding feature of high energy-conservation, high reliability, strong applicability, Automatic Control, environmental protection.
Although technique scheme discloses several supply equipments, above-mentioned technical problem present in prior art but can not be solved.
Content of the invention
The invention aims to relying on compressed air to carry out ftercompction in solution prior art; effect is poor; negative pressure protective capability is limited; and when intake pressure fluctuates; the problems such as easily outlet pressure is impacted, and a kind of a kind of multistage tank body supply equipment of NFWG III type can effectively preventing negative relative generation, having dual pressure supplementing function is provided.
The present invention realizes its technical purpose and be employed technical scheme comprise that：A kind of multistage tank body supply equipment of NFWG III type, including control system, it is arranged on the current stabilization tank arrangement between water main and outfall sewer, described current stabilization tank arrangement is multistage tank structure, including current stabilization tank body and ftercompction tank body, described ftercompction tank interior is provided with ftercompction capsule body, the water inlet pipe connecting ftercompction tank body is provided with described water main, described water inlet pipe outlet and the open communication of ftercompction capsule body, described current stabilization tank body is connected with ftercompction tank body by a negative pressure suppression device, described negative pressure suppression device is connected with control system, described negative pressure suppression device is connected with the cavity of the ftercompction tank body outside ftercompction capsule body by pipeline.This supply equipment arranges multistage tank structure on water main, one ftercompction tank body is connected on voltage stabilizing tank body, voltage stabilizing tank body is connected by a negative pressure suppression device with ftercompction tank body or disconnects, ftercompction tank interior is provided with ftercompction capsule, voltage stabilizing tank body is connected with the internal cavity of ftercompction tank body and does not connect with inside ftercompction capsule body, and the opening of ftercompction capsule is connected with water main by a water inlet pipe and do not connected with ftercompction tank interior cavity.When equipment works, water main is passed through in municipal tap water, voltage regulation adjustor enters current stabilization tank body, part water inlet enters inside the ftercompction capsule body in ftercompction tank body by water inlet pipe, after the air of current stabilization tank interior is compressed simultaneously, enter in the cavity outside ftercompction tank interior ftercompction capsule by negative pressure suppression device, and pressure is produced to ftercompction capsule outer walls, ftercompction capsule is compressed in the presence of compressed air, until intake pressure reaches balance with the gas pressure in ftercompction tank body.When equipment normally runs, municipal intake pressure is constant, and the pressure in current stabilization tank body and ftercompction tank body keeps balance；When equipment flow increases or pump group startup moment, when leading to municipal intake pressure to decline, ftercompction tank body passes through water inlet pipe and carries out ftercompction to municipal administration, water inlet enters into ftercompction capsule by water inlet pipe, ftercompction capsule swells and compresses the air of ftercompction tank interior to current stabilization tank body, there is provided motive power by the air of ftercompction capsule and ftercompction tank interior for ftercompction flow, ensure promptness and the effectiveness of ftercompction flow；When equipment leads to city planting ductwork to be cut off the water due to some faults or abnormal cause, equipment is still running, the gas of ftercompction tank interior is discharged to current stabilization tank interior by negative pressure suppression device, supplements the pressure of current stabilization tank body, ensures that current stabilization tank interior does not have negative pressure to produce.This supply equipment passes through the cooperating of multistage tank structure, carries out dual ftercompction guarantee by ftercompction capsule and gas, enhances the negative pressure suppression effect of municipal administration water inlet, has ensured the safe operation of city planting ductwork.
As preferred, water inlet within described water inlet pipe enters into and forms water inlet ftercompction in ftercompction capsule body, the ftercompction tank interior that the gas of described current stabilization tank interior is entered into by negative pressure suppression device outside ftercompction capsule body forms gas pressure, and described water inlet ftercompction forms dual ftercompction with gas pressure to steady-flow tank body.
Preferably, being provided with the voltage regulation adjustor being connected with control system between described water main and current stabilization tank arrangement, described water inlet pipe is arranged between voltage regulation adjustor and current stabilization tank arrangement.
As preferred, described negative pressure suppression device includes shell body, connecting tube, adpting flange and negative pressure suppression body, described negative pressure suppression body is arranged in shell body, described negative pressure suppression body includes connecting high-frequency electromagnetic valve, negative pressure suppression cylinder, spheroid and the thimble that the breather of current stabilization tank interior is connected with breather, described negative pressure suppression cylinder is connected to the port of export of breather and is connected with breather, described thimble and spheroid are provided with negative pressure suppression inner barrel, and described thimble is connected with spheroid and with venting tube outlet just to setting.Negative pressure suppression device is set to said structure, by adpting flange, this negative pressure suppression device is connected with equipment water inlet current stabilization tank body, when city planting ductwork is intake, because current stabilization tank interior gas is compressed, the gas of current stabilization tank interior is discharged by breather, and now spheroid and thimble, high-frequency electromagnetic valve are in open mode.When after in steady-flow tank body, gas is discharged, liquid level rises to ball position, spheroid starts to float, and breather is closed by thimble, and liquid cannot flow out.High-frequency electromagnetic valve is controlled by control system simultaneously closes.When municipal water inlet insufficient pressure, when needing ftercompction in steady-flow tank body, high-frequency electromagnetic valve is opened, and while liquid level declines, the gas of ftercompction tank interior is added in steady-flow tank body by breather, prevents negative pressure from producing.
As preferred, it is provided with exit branch on described outfall sewer, it is connected with vacuum tank on described exit branch, described vacuum tank is internally provided with voltage stabilizing capsule body, the opening of described voltage stabilizing capsule body is connected with exit branch, the water inlet pipe of described connection ftercompction tank body is passed through electromagnetic valve and is connected with the exit branch being connected vacuum tank, and described electromagnetic valve is connected with control system.On exit branch, setting vacuum tank is to carry out voltage stabilizing to supply equipment; play the effect of small flow pressure maintaining; voltage stabilizing tank interior is provided with the voltage stabilizing capsule body of food stage; voltage stabilizing capsule body is connected with exit branch; it is mounted with electromagnetic valve in water outlet with the arm tip designs entering water passage; in supply equipment abnormal pressure, protection water outlet pipe network will be controlled by system and carry out releasing pressure automatically, prevent the generation of pipe explosion accident.
As preferred, described steady-flow tank is connected with one group of pump housing by one group of inlet valve, the outlet of each pump housing is respectively arranged with check-valves and flowing water Valve and is connected with outfall sewer, pressure switch is provided with described outfall sewer, described outfall sewer connects water outlet pipe network by water outlet main valve.Current stabilization tank body is directly connected with one group of pump housing, and the outlet of each pump housing is separately installed with check-valves and flowing water Valve and is connected with outfall sewer, and outfall sewer is provided with pressure switch, and such structure advantageously ensures that the normal operation of supply equipment.
Preferably, being provided with pipeline expansion joint and electromagnetic flowmeter on the anterior outfall sewer of described water outlet main valve, described electromagnetic flowmeter is connected with control system.
As preferred; control system adopts redundancy structure; described control system includes master control system and supplementary controlled system; the normal operation of system is monitored by master control system control and by supplementary controlled system; then supplementary controlled system runs for master control system exception or fault, and described electromagnetic valve is by supplementary controlled system control.Control system switch board part adopts redundancy structure to design, and when system is normally run, is worked by master control system, the running status of supplementary controlled system then real-time monitoring master control system, and the real time data that storage system is run；When master control system exception or fault, supplementary controlled system automatically engages operation, it is to avoid the risk of shutdown, has ensured the demand of uninterrupted water supply.
Preferably, being additionally provided with water main into water main valve, y-type filter and backflow preventer.During equipment work, intake main valve, y-type filter, backflow preventer, voltage regulation adjustor entrance steady-flow tank are passed through in municipal tap water, and such structure achieves to the effective filtration supplied water, and ensure that water will not flow backwards in water supply process.
The invention has the beneficial effects as follows：This multistage tank body supply equipment of NFWG III type; 1. device structure part increases valve Based Intelligent Control; form duplicate protection with frame for movement; improve system operation security performance in normal operation; control system part adopts redundancy structure to design; when control system is normally run; master control system runs as controlling; aid system is as monitoring system and data storage center; when master control system exception or fault; aid system automatically engages operation, and the security performance of system is greatly improved, and ensures continual water requirements.
2. the turnover water end (W.E.) in equipment designs the Based Intelligent Control of electromagnetic valve, pressure transducer detects Inlet and outlet water end pressure, form pressure reduction in systems to control, when equipment runs, when discharge pressure superelevation, system controls electromagnetic valve to carry out releasing pressure automatically, prevents outlet pipeline because of high pressure, increase the leakage loss of pipeline and the service life shortening pipeline, and prevent the generation of pipe explosion accident.
3. anti-negative pressure function adopts negative pressure suppression system; duplicate protection by frame for movement plus Based Intelligent Control; the stability of equipment operation is greatly improved; when equipment runs, real-time monitoring intake pressure changes, and intelligence control system control valve is opened and closed; prevent the generation of negative relative; and pass through the timely ftercompction of frame for movement, compensate flow of inlet water, duplicate protection negative pressure produces.
4. on the basis of total enclosing structure prevents water pollution once again, by collecting the energy through overcompression for the tank interior gas, motive power is provided when intake pressure deficiency needs ftercompction, the minimizing system ftercompction time, the flow-compensated time is made to shorten, suppression negative pressure produces in time, and water inlet pipe network is impacted.
5. when device systems operation exception or fault, device structure is automatically drained out the gas storing, and is supplemented to the vacuum phenomenon that current stabilization tank body prevents tank interior from leading to because of total enclosing, prevents tank body from damaging, and pipeline such as goes to pot at the generation of accident.
6. pass through the compensation of intake pressure and the multistage tank structure design of discharge pressure buffering, solve the discharge pressure fluctuation leading to because of intake pressure fluctuation, make discharge pressure more stable, lifting user is tested with water body.
Brief description
Fig. 1 is a kind of structural representation of the multistage tank body supply equipment of NFWG III type of the present invention；
Fig. 2 is a kind of operation logic figure of the multistage tank body supply equipment of NFWG III type of the present invention；
Fig. 3 is a kind of structural representation of multistage tank structure in the present invention；
Fig. 4 is a kind of structural representation of negative pressure suppression device in the present invention；
In figure：1、Control system，2、Water main，3、Outfall sewer，4、Current stabilization tank arrangement，5、Voltage regulation adjustor，6、Current stabilization tank body，7、Ftercompction tank body，8、Ftercompction capsule body，9、Water inlet pipe，10、Negative pressure suppression device，11、Shell body，12、Connecting tube，13、Adpting flange，14、Negative pressure suppression body，15、Breather，16、High-frequency electromagnetic valve，17、Negative pressure suppression cylinder，18、Spheroid，19、Thimble，20、Exit branch，21、Vacuum tank，22、Voltage stabilizing capsule body，23、Electromagnetic valve，24、Inlet valve，25、The pump housing，26、Check-valves，27、Flowing water Valve，28、Pressure switch，29、Water outlet main valve，30、Pipeline expansion joint，31、Electromagnetic flowmeter，32、Master control system，33、Supplementary controlled system，34、Water inlet main valve，35、Y-type filter，36、Backflow preventer，37、Pressure transmitter.
Specific embodiment
Below by specific embodiment and combine accompanying drawing technical scheme is described in further detail.
Embodiment 1：
In embodiment shown in Fig. 1, Fig. 2, a kind of multistage tank body supply equipment of NFWG III type, including control system 1, the current stabilization tank arrangement 4 that is arranged between water main 2 and outfall sewer 3, it is provided with voltage regulation adjustor 5 between the 4 of water main 2 and current stabilization tank arrangement, current stabilization tank arrangement 4 is multistage tank structure, including current stabilization tank body 6 and ftercompction tank body 7, ftercompction tank body 7 is internally provided with ftercompction capsule body 8（See Fig. 3）The water inlet pipe 9 being connected ftercompction tank body 7 is provided with the water main 2 between voltage regulation adjustor 5 and steady-flow tank 4, water inlet pipe 9 outlet and the open communication of ftercompction capsule body 8, current stabilization tank body 6 is connected with ftercompction tank body 7 by a negative pressure suppression device 10, negative pressure suppression device 10 and voltage regulation adjustor 5 are connected with control system 1 respectively, and negative pressure suppression device 10 is connected with the cavity of the ftercompction tank body 7 outside ftercompction capsule body 8 by pipeline.
Negative pressure suppression device 10 includes shell body 11, connecting tube 12, adpting flange 13 and negative pressure suppression body 14（See Fig. 4）Negative pressure suppression body 14 is arranged in shell body 11, negative pressure suppression body 14 includes connecting high-frequency electromagnetic valve 16, negative pressure suppression cylinder 17, spheroid 18 and the thimble 19 that the breather 15 within current stabilization tank body 6 is connected with breather 15, negative pressure suppression cylinder 17 is connected to the port of export of breather 15 and is connected with breather 15, thimble 19 and spheroid 18 are provided with inside negative pressure suppression cylinder 17, and thimble 19 is connected with spheroid 18 and is exported just to setting with breather 15.
Exit branch 20 is provided with outfall sewer 3, vacuum tank 21 is connected with exit branch 20, vacuum tank 21 is internally provided with voltage stabilizing capsule body 22, the opening of voltage stabilizing capsule body 22 is connected with exit branch 20, the water inlet pipe 9 connecting ftercompction tank body 7 is connected with the exit branch 20 being connected vacuum tank 21 by electromagnetic valve 23, and electromagnetic valve 23 is connected with control system 1.
Current stabilization tank arrangement 4 is connected with one group of pump housing 25 by one group of inlet valve 24, the outlet of each pump housing 25 is respectively arranged with check-valves 26 and flowing water Valve 27 and is connected with outfall sewer 3, pressure switch 28 is provided with outfall sewer 3, outfall sewer 3 connects water outlet pipe network by water outlet main valve 29.
Pipeline expansion joint 30 and electromagnetic flowmeter 31 are provided with the outfall sewer 3 of water outlet main valve 29 front portion, electromagnetic flowmeter 31 is connected with control system 1.
Control system 1 adopts redundancy structure; control system 1 includes master control system 32 and supplementary controlled system 33; system is normally run and is controlled and monitored by supplementary controlled system 33 by master control system 32; then supplementary controlled system 33 runs for master control system 32 exception or fault, and electromagnetic valve 23 is controlled by supplementary controlled system 33.
It is additionally provided with water main 2 into water main valve 34, y-type filter 35 and backflow preventer 36.
Municipal water inlet pipe installs voltage regulation adjustor 5 to current stabilization tank arrangement 4, and current stabilization tank body 6 upper end is provided with the inner chamber of negative pressure suppression device 10 and ftercompction tank body 7（Water inlet is inside ftercompction capsule body 8, and is entered by the import of ftercompction capsule body 8）Connect；Water main 2 seam installs pressure transmitter 37 detection intake pressure, and point has and to connect ftercompction tank body 7 into water branch road 9, is provided with the ftercompction capsule body 8 of food stage inside ftercompction tank body 7（Water inlet is inside ftercompction capsule body 8）；Current stabilization tank body 6 is directly connected with one group of pump housing 25, each pump housing 25 outlet is separately installed with check-valves 26 and flowing water Valve 27 is connected with outfall sewer 3, pressure switch 28 is provided with outfall sewer 3, Bing Fen mono- road exit branch 20 connects vacuum tank 21, is provided with the voltage stabilizing capsule body 22 of food stage inside vacuum tank 21.Electromagnetic valve 23 is installed between exit branch 20 and water inlet pipe 9, electromagnetic valve 23 is controlled by supplementary controlled system 33.
The operation logic of this supply equipment：During equipment work, intake main valve 34, y-type filter 35, backflow preventer 36, voltage regulation adjustor 5 entrance current stabilization tank body 6 are passed through in municipal tap water, part water inlet enters the inside of the ftercompction capsule body 8 in ftercompction tank body 7 by water inlet pipe 9, after air within current stabilization tank body 6 is compressed simultaneously, ftercompction tank body 7 is entered by negative pressure suppression device 10（Inside ftercompction tank body 7 outside ftercompction capsule body 8,）Ftercompction capsule body 8 is made to be compressed, until intake pressure reaches balance with the gas pressure in ftercompction tank body 7.When equipment normally runs, municipal intake pressure is constant, and the pressure in current stabilization tank body 6 and ftercompction tank body 7 keeps balance；When equipment flow increases or pump group startup moment, when leading to municipal intake pressure to decline, ftercompction tank body 7 passes through water inlet pipe 9 and carries out ftercompction to municipal administration, and the air within ftercompction capsule body 8 and ftercompction tank body 7 provides motive power for ftercompction flow, ensure promptness and the effectiveness of ftercompction flow；When equipment leads to city planting ductwork to be cut off the water due to some faults or abnormal cause, equipment is still running, gas within ftercompction tank body 7 is escaped and enter inside current stabilization tank body 6 by negative pressure suppression device 10, supplements the pressure of current stabilization tank body 6, ensures and does not have negative pressure to produce inside current stabilization tank body 6.The vacuum tank 21 of water side setting is equipment voltage stabilizing; the effect of small flow pressure maintaining; it is mounted with electromagnetic valve 23 in water outlet with the arm tip designs entering water passage, be to protect water outlet pipe network will be controlled by system to carry out releasing pressure automatically in unit exception high pressure, prevent the generation of pipe explosion accident.
The control system 1 switch board part of equipment adopts redundancy structure to design, and when system is normally run, is worked by master control system 32, the running status of supplementary controlled system 33 then real-time monitoring master control system 32, and the real time data that storage system is run；When master control system 32 exception or fault, supplementary controlled system 33 automatically engages operation, it is to avoid the risk of shutdown, has ensured the demand of uninterrupted water supply.
Municipal administration water inlet enters current stabilization tank body 6 from water main 2, current stabilization tank body 6 interior part air enters ftercompction tank interior by negative pressure suppression device 10 and gas flow pipe after being compressed, part water inlet is then entered inside ftercompction capsule body 8 by water inlet pipe, and ftercompction capsule body 8 is installed on inside ftercompction tank body 7.
For ensureing city planting ductwork safety, if intake pressure is P1, current stabilization tank body 6 internal gas pressure is P2, is P1=P2 when intake pressure reaches balance；When municipal administration water inlet pipe network pressure oscillation, balance and the P1 ≠ P2 of intake pressure are broken, then ftercompction tank body 7 passes through the contraction of internal ftercompction capsule body 8 and air to carrying out ftercompction and regulation intake pressure is stablized, and is equivalent to the effect of air pressure tank body.When the deficiency of intake pressure reaches zero boundary's negative pressure value（The water inlet minimal protection pressure of default is negative relative）Now P1 ＜ P2, negative pressure suppression device is controlled by system releases the gas within ftercompction tank body 7, it is supplemented in current stabilization tank body 6, compensate part steady-flow tank body 6 internal pressure, expand compensation dosage, ensure that municipal administration water inlet no negative pressure produces, pass through the cooperating of multistage tank structure in the design, by the dual ftercompction guarantee of ftercompction capsule body 8 and gas, enhance the negative pressure suppression effect of municipal administration water inlet, ensure the safety of city planting ductwork.
In the design, negative pressure suppression device 10 is connected with equipment water inlet current stabilization tank body 6 by adpting flange 13, when city planting ductwork is intake, due to the compression of current stabilization tank body 6 internal gas, current stabilization tank body 6 internal gas are discharged by breather 15, and now rustless steel spheroid 18 and thimble 19, high-frequency electromagnetic valve 16 are in open mode.When after in current stabilization tank body 6, gas is discharged, liquid level rises to rustless steel spheroid 18 position, rustless steel spheroid 18 starts to float, and breather 15 is closed by thimble 19, and liquid cannot flow out.High-frequency electromagnetic valve 16 controls closing by control system 1 simultaneously.When municipal water inlet insufficient pressure, when needing ftercompction inside current stabilization tank body 6, high-frequency electromagnetic valve 16 is opened, and while liquid level declines, gas is added in current stabilization tank body 6 by breather 15, prevents negative pressure from producing.
This equipment municipal water inlet end negative pressure protect and pressure compensation design, also devise pressure compensation and small flow pressure maintaining function it is therefore prevented that the frequent fluctuation of pressure in water side, more perfect guarantee no negative pressure produces.Equipment eliminates, in negative pressure protection, negative pressure, the function of functionally devising duplicate protection; the ftercompction of city planting ductwork water inlet is realized by the storage of gas pressure and release and the intrinsic contractility of capsule body and negative pressure eliminates function, the municipal intake pressure of protection is safer when equipment runs.Equipment has done the safeguard protection of major-minor system, intelligentized control method on intelligent control system, and dual system redundancy structure designs, the safety that lifting means supplies water.No negative pressure equipment takes full advantage of the excess pressure energy that equipment operationally produces on pressure compensation; compensation function is realized in device interior; it is not take up space; low manufacture cost; effective protection pipe network is affected the unsafe factor producing by water outlet high pressure; reduce pipe network loss and leakage loss, reach the purpose of energy-saving safe.Equipment multipoint pressure is monitored, and multisystem cooperation controls, and circulation is mutually standby, gives warning in advance, and realization is uninterrupted to supply water, and ensures equipment safety operation.
Claims (9)
1. the multistage tank body supply equipment of a kind of NFWG III type, including control system（1）, be arranged on water main（2）And outfall sewer（3）Between current stabilization tank arrangement（4）It is characterised in that：Described current stabilization tank arrangement（4）For multistage tank structure, including current stabilization tank body（6）With ftercompction tank body（7）, described ftercompction tank body（7）It is internally provided with ftercompction capsule body（8）, described water main（2）On be provided with connection ftercompction tank body（7）Water inlet pipe（9）, described water inlet pipe（9）Outlet and ftercompction capsule body（8）Open communication, described current stabilization tank body（6）By a negative pressure suppression device（10）With ftercompction tank body（7）Connect, described negative pressure suppression device（10）With control system（1）Connect, described negative pressure suppression device（10）By pipeline and ftercompction capsule body（8）Outside ftercompction tank body（7）Cavity connection.
2. a kind of multistage tank body supply equipment of NFWG III type according to claim 1 it is characterised in that：Described water inlet pipe（9）Internal water inlet enters into ftercompction capsule body（8）Interior form water inlet ftercompction, described current stabilization tank body（6）Internal gas passes through negative pressure suppression device（10）Enter into ftercompction capsule body（8）Outside ftercompction tank body（7）It is internally formed gas pressure, described water inlet ftercompction and gas pressure are to current stabilization tank body（6）Form dual ftercompction.
3. a kind of multistage tank body supply equipment of NFWG III type according to claim 1 it is characterised in that：Described water main（2）With current stabilization tank arrangement（4）Between be provided with and control system（1）The voltage regulation adjustor connecting（5）, described water inlet pipe（9）It is arranged on voltage regulation adjustor（5）With current stabilization tank arrangement（4）Between.
4. a kind of multistage tank body supply equipment of NFWG III type according to claim 1 it is characterised in that：Described negative pressure suppression device（10）Including shell body（11）, connecting tube（12）, adpting flange（13）With negative pressure suppression body（14）, described negative pressure suppression body（14）It is arranged on shell body（11）Interior, described negative pressure suppression body（14）Including connection current stabilization tank body（6）Internal breather（15）, and breather（15）The high-frequency electromagnetic valve connecting（16）, negative pressure suppression cylinder（17）, spheroid（18）And thimble（19）, described negative pressure suppression cylinder（17）It is connected to breather（15）The port of export and and breather（15）Connection, described thimble（19）And spheroid（18）It is arranged on negative pressure suppression cylinder（17）Inside, described thimble（19）With spheroid（18）Connect and and breather（15）Outlet is just to setting.
5. a kind of multistage tank body supply equipment of NFWG III type according to claim 1 it is characterised in that：Described outfall sewer（3）On be provided with exit branch（20）, described exit branch（20）On be connected with vacuum tank（21）, described vacuum tank（21）It is internally provided with voltage stabilizing capsule body（22）, described voltage stabilizing capsule body（22）Opening and exit branch（20）Connect, described connection ftercompction tank body（7）Water inlet pipe（9）By electromagnetic valve（23）Be connected vacuum tank（21）Exit branch（20）Connect, described electromagnetic valve（23）With control system（1）Connect.
6. a kind of multistage tank body supply equipment of NFWG III type according to claim 1 it is characterised in that：Described current stabilization tank arrangement（4）By one group of inlet valve（24）It is connected with one group of pump housing（25）, each pump housing（25）Outlet be respectively arranged with check-valves（26）And flowing water Valve（27）And and outfall sewer（3）Connect, described outfall sewer（3）On be provided with pressure switch（28）, described outfall sewer（3）By water outlet main valve（29）Connect water outlet pipe network.
7. a kind of multistage tank body supply equipment of NFWG III type according to claim 6 it is characterised in that：Described water outlet main valve（29）Anterior outfall sewer（3）On be provided with pipeline expansion joint（30）And electromagnetic flowmeter（31）, described electromagnetic flowmeter（31）With control system（1）Connect.
8. the multistage tank body supply equipment of a kind of NFWG III type according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 it is characterised in that：Control system（1）Using redundancy structure, described control system（1）Including master control system（32）And supplementary controlled system（33）, system normally runs by master control system（32）Control and by supplementary controlled system（33）Monitoring, master control system（32）Exception or fault then supplementary controlled system（33）Run.
9. the multistage tank body supply equipment of a kind of NFWG III type according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 it is characterised in that：Water main（2）On be additionally provided with into water main valve（34）, y-type filter（35）And backflow preventer（36）.
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| CN201610571973.XA CN106400891B (en) | 2016-07-20 | 2016-07-20 | A kind of III type multistage tank body supply equipment of NFWG |
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| CN109281355A (en) * | 2018-09-07 | 2019-01-29 | 南方泵业智水（杭州）科技有限公司 | The compensation laminating water supply equipment of transfiguration |
| CN110173021A (en) * | 2019-06-17 | 2019-08-27 | 上海威派格智慧水务股份有限公司 | A kind of frequency conversion pressurization dedicated pressurization energy storage equipment of supply equipment |
| CN110512688A (en) * | 2019-08-30 | 2019-11-29 | 长沙中赢供水设备有限公司 | A kind of filter-type non-negative pressure water-supply device based on Internet of Things |
| CN111997144A (en) * | 2020-08-26 | 2020-11-27 | 蒋介中 | Outdoor integral intelligent pipe network pressure-superposed water supply equipment |
| CN111997142A (en) * | 2020-08-26 | 2020-11-27 | 蒋介中 | Flow compensation non-negative pressure pipe network pressure-superposed energy-saving water supply control system |
| CN112031075A (en) * | 2020-09-01 | 2020-12-04 | 蒋介中 | Energy-saving pipe network pressure-superposed water supply control system |
| CN116378170A (en) * | 2023-05-05 | 2023-07-04 | 艺坤智慧水务集团有限公司 | Distributed energy compensation device for negative pressure elimination |
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| CN111997142B (en) * | 2020-08-26 | 2021-09-24 | 无锡康宇水处理设备有限公司 | Flow compensation non-negative pressure pipe network pressure-superposed energy-saving water supply control system |
| CN111997144A (en) * | 2020-08-26 | 2020-11-27 | 蒋介中 | Outdoor integral intelligent pipe network pressure-superposed water supply equipment |
| CN112031075A (en) * | 2020-09-01 | 2020-12-04 | 蒋介中 | Energy-saving pipe network pressure-superposed water supply control system |
| CN116378170A (en) * | 2023-05-05 | 2023-07-04 | 艺坤智慧水务集团有限公司 | Distributed energy compensation device for negative pressure elimination |
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Effective date of registration: 20190819 Address after: 310000 No. 20 Hengyi Road, Yuhang Economic and Technological Development Zone, Hangzhou City, Zhejiang Province Patentee after: Southern pump industry Zhi Shui (Hangzhou) Technology Co., Ltd. Address before: Renhe Town of Yuhang District of Hangzhou City, Zhejiang province 311107 Patentee before: Southern Gold environment Limited by Share Ltd |
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Address after: 310000 Building 2, No.20 Hengyi Road, Yuhang Economic and Technological Development Zone, Yuhang District, Hangzhou City, Zhejiang Province Patentee after: Nanfang Zhishui Technology Co.,Ltd. Address before: 310000 Building 2, No.20 Hengyi Road, Yuhang Economic and Technological Development Zone, Yuhang District, Hangzhou City, Zhejiang Province Patentee before: NANFANG PUMP ZHISHUI (HANGZHOU) TECHNOLOGY Co.,Ltd. |