CN1081222A - Miniaturization, universal energy-saving pneumatic water supply installation - Google Patents
Miniaturization, universal energy-saving pneumatic water supply installation Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 187
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- 230000000087 stabilizing effect Effects 0.000 claims description 11
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- 238000006073 displacement reaction Methods 0.000 description 2
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Abstract
Relate to a kind of miniaturization, universal energy-saving pneumatic water supply installation.The main system, pneumatic water supply subsystem and the programmable controller PC that comprise several water pumps in parallel are the electric-control system of core.Adopt the SKX valve that 1/10～1/30 of common vapour-pressure type is arrived in the auto-pneumatic cylinder miniaturization.Adopt any moment arbitrary number of times of SBQ valve to implement automatic tonifying Qi, make this feeding engine be used for various water supply occasions.And implement not have imbalance and pulsation and do not have the efficient constant voltage of energy consumption issues such as zero delivery idle running to regulate at pressure oscillation Δ P ≈ ± 0.03MPa scope.At last, adopt small-sized PC to realize high-level, highly reliable, Automatic Control cheaply.
Description
Patent of the present invention relates to a kind of miniaturization, universal energy-saving pneumatic water supply installation.
At present, vapour-pressure type and frequency conversion type water supply facilities be because civil engineering costs is few, short construction period, do not have the pollution problem second time of water quality, develops rapidly.Especially adopt computer and frequency converter to implement the frequency conversion type water supply facilities of " constant pressure water supply ", this paper is called for short BPS equipment, poses as with the energy saving water supply facilities, almost overwhelms the water supply facilities industry that vapour-pressure type is being dominated China exclusively.Yet, the energy-saving effect of this equipment be not many producers advocate about 30%～50% big like this, difficulty reaches energy-conservation purpose on many parallel water pump feeding engines.
As everyone knows, the n of the feedwater lift H of centrifugal water pump and water pump revolution
2Be directly proportional, and the revolution n of ac motor is directly proportional with the a-c cycle f of its input electricity.Obviously, less frequency change (or revolution) causes that very big lift changes, and lift drops to a certain degree, and variable frequency pump will be in zero delivery blocked state consume electric power in vain.In addition, to two above parallel water pump feeding engines, when switching mutually between the adjacent water pump, often there is a kind of flow imbalance district that can't obtain regime flow.In this flow region, the general pump that has has just started or stoped running will be in repeatedly and open, stops state, i.e. a large amount of electric energy of pulse state consumption.Therefore, the BPS equipment of many parallel water pumps, because these zero deliverys block, the long-term pulsation in flow imbalance district and the reasons such as vibration of the long period that pressure and flow transition cause in switching the water pump process are difficult to find out energy-saving effect.Here it is, and U.S. good fortune human relations water pump company only is used for a main cause on the water pump to variable-frequency control technique.In addition, the reduction of pump rotary speed also can cause the minimizing of pump sump lift.Therefore, the depth of water surpasses the updraft type occasion more than 3 meters, can't adopt this kind equipment.
Present pneumatic installation water supply, this paper are called for short QYS equipment, all are the work of constant speed throttling Principles of Regulation, and poor according to the upper and lower contact force of setting in the pressure controller, pump opens, cuts off the water.Do not exist zero delivery to block, can't stop problems such as water pump.But, when pressure differential is got hour, flow imbalance district and the pulsation power consumption problem of existing as the same.And the auto-pneumatic cylinder volume is big, pump motor per hour to open, stop number of times too much or the like.Therefore, QYS equipment generally all is that pressure changes greatly, power consumption is many, auto-pneumatic cylinder very the benzene weight also should not adopt in the updraft type occasion.
In view of above situation, patent of the present invention will and adopt three kinds of utility model valve patents according to inventor's miniaturization, unitized energy-saving pneumatic water supply machine design theory, propose a kind of fully novel pneumatic installation water supply, intend reaching miniaturization, generalization, comprehensively purpose such as energy-conservation, reliable, economical and suitable.This miniaturization, universal energy-saving pneumatic water supply installation, this paper are called for short BYG type feeding engine, according to parallel water pump platform number, replacement BYG-I, II, III, IV and V etc. respectively.Below, be example with the BYG-IV type feeding engine of four water pumps in parallel, in conjunction with Fig. 1～Fig. 7, the waterpower flow process, automatic program, operating principle of introducing patent of the present invention with and major technique feature etc.For the narration just, this paper will repeat some contents of three kinds of utility model valve patents slightly.
Fig. 1 is the waterpower flow process of BYG-IV type machine;
Fig. 2 is the automatic control circuit of BYG-IV type machine;
Fig. 3 is the automatic control program of BYG-IV type machine;
Fig. 4 is the structure (patent No.: 93211044.4) of SBQ type water control aeration valve;
Fig. 5 is the structure (patent No.: 93211043.6) of SKX type water control flow-limiting valve;
Fig. 6 is the structure (patent No.: 93211042.8) of the highly sensitive bottom valve of GD type;
All BYG type feeding engines are all by the feedwater main system of water pump, and auto-pneumatic cylinder is paid system and electric-control system, and this three part is formed.
1, the feedwater main system of water pump is called for short main system, sees Fig. 1.On water service pipe 3, according to maximum feedwater flow size several water pump B0～B3 in parallel etc., they all are the very level and smooth one-stage centrifugal water pumps of H-Q characteristic, as IS series.Wherein, to be voltage stabilizing help little pump with attached with the B0 pump, and all the other water pumps all are the identical feed pumps of specification.Import and export at each water pump are provided with butterfly valve 4, and from well updraft type occasion, the water inlet of every suction water pipe 1 is installed bottom valve GD, cut out first suction water pipe top series connection and end valve 5 and funnel 6, annotate the usefulness of a water only for when Installation and Debugging this suction water pipe.Directly irritate the formula occasion from the ground storage cistern, cancellation bottom valve GD is every pump outlet series connection flap valve (not shown).Then, in the middle and upper part of water service pipe 3 the pressure meter SY that has snubber is installed.One end of water service pipe is connected with water pipe network 8 through gate valve 7, and the other end is connected with the auto-pneumatic cylinder system of paying through filter GL.
2, auto-pneumatic cylinder is paid system, is called for short the system of paying.It is to be called for short the QS jar with auto-pneumatic cylinder QS() be the center, two electro connecting pressure gauges are installed at its top, and wherein the DY0 table is used for controlling the little pump motor M0 of voltage stabilizing, and the DY table is used to control other pump motor M1～M3.If B0 pump performance and other feed pump are more or less the same, and then cancel DY0, only with all water pumps of DY table control.In the middle and lower part of QS jar, dipperstick 10 and automatic air valve 11 are housed.Between bottom of this jar and the strainer GL flap valve 9 is set, and draw the water inlet A that a thinner water pipe is connected water control aeration valve SBQ between this valve and the strainer, the water outlet B of this valve is called for short the BQ jar with the air supply tank BQ(of QS jar top) be connected, and the C mouth of this valve is connected with return pipe 14, the water control mouth of SBQ valve is provided with electromagnetic valve DF-3, and its outfall is connected on the return pipe 14.
3, electric-control system is seen Fig. 2.The core component of this system is small-sized programmable controller PC, is called for short PC, SP10, SP16, SP20 and the C20P etc. of for example Japanese omron company.It is input as electro connecting pressure gauge DY, and the switching signal of toggle switch NK, fire-fighting contact Kx etc. is powered by internal DC 24V.And the AC220V interchange is got in the output of PC, controls all A.C. contactor CJi of three electromagnetic valve DF-1～3 and drive motor Mi respectively.At last, QS tank top air pressure Pq is fed back to the whole switching value closed-loop control system of formation in the DY table, its control program is as Fig. 3.Below, the meaning of various symbols in the key diagram:
The Pq-QS air pressure tank; Ps-water service pipe hydraulic pressure;
Pk-DY shows threshold pression; Pt-DY table upper limit pressure;
The Sk-switching signal; St-termination of pumping signal;
Every Sk signal number of times of J=1-; Every St signal number of times of k=1;
" N
-control channel is selected number; N-control channel code name;
The delay value of Ti-timer, second;
The on-connection of switching on; The off-disconnection of switching on;
CS-QS jar water filling process; PS-QS jar drainage procedure;
Fig. 3 is circuit, the water route of BYG-IV type machine, the comprehensive automatic control program of gas circuit.Wherein, show from DY that automatically controlled program all is organized in the PC more than the CJi, it is divided into signal handles and this two-part logic flow of control channel.
At first, the logic flow of signal processing is described as follows:
1) the DY table detects after the QS jar air pressure Pq, compares with its upper and lower limit pressure P t, Pk.
2) when Pq≤Pk, send a Sk signal and be designated as J=1, be input to channel to channel adapter " N
If the Sk signal is long, then cut off signal one time second every Tk, increase the input number of times of J=1.
3) when Pq 〉=Pt, send a St signal and be designated as K=1, be input into " N
If St is long, cut off signal one time second every Tk, increase the input number of times of K=1.
4) whenever sending the St signal one time, give electromagnetic valve DF-3 energising T3 second, implement a tonifying Qi.
5) channel to channel adapter is by " N
The mathematic(al) mode of=∑ J-∑ K is selected control channel.
6) if " N
=0, all control channels do not have electricity, and any motor is not worked.
7), but keep channel status at that time if Pk＜Pq＜Pt does not send any signal.
Secondly, the control channel part is by N=1, N 〉=2, and N 〉=3, several roads such as N 〉=4 are formed, and its port number equates with the platform number of pump motor.Its logic flow is:
1) as " N of channel to channel adapter
=1 o'clock, CJ0 was connected in the power supply of N=1 passage, drove B0 pump motor M0.Meanwhile, give electromagnetic valve DF-2 energising T2 second;
2) as " N
=2 o'clock, give N 〉=2, CJ1 is connected in the passage power supply, drives M1.Simultaneously, cut off CJ0 and M0 and also give electromagnetic valve DF-1 energising T1 second;
3) as " N
=3 o'clock, give N 〉=2, N 〉=3 passages power supply, connect CJ2, drive M2, make M1+M2.
4) as " N
=4 o'clock, give N 〉=2, N 〉=3 and N 〉=4 passages power supply, connect CJ3, drive M3, make M1+M2+M3 or the like.
Below, further combined with Fig. 4～Fig. 7, introduce the course of work and the design principle of BYG-type machine.At first, the physical significance of each curve and symbol in the key diagram 7,
The H-Q curve of the little pump B0 of no-voltage stabilizing;
H-Q characteristic when n.2n.3n-starting each feed pump respectively;
The different drag overall characteristics of water service pipe 3 constantly of Zi-;
The maximum hydrostatic height of Hj-building, rice;
The turn on pump lift of each water pump of Hk-, Hk ≈ 100Pk, m;
The termination of pumping field journey of each water pump of Ht-, Ht ≈ 100Pt, m;
The lift of Hs-water service pipe 3, Hs ≈ 100Ps, m;
The lift of Hq-QS jar, Hq ≈ 100Po, m;
The feedwater flow of Q-different operating point.
The course of work of BYG type feeding engine can be by regulating with the low discharge pulsation water supply of discharge Qu≤Qot and the big flow district constant speed throttling of Qu＞Qot, and these two processes are all summarized.
Suppose, be used for the updraft type occasion, the Bo water pump is identical with the feed pump characteristic, only with all pump motors of DY table control.
1, the low discharge of Qu≤Qot pulsation water supply process.
When the user opens the drag overall characteristic Z=Zot that a part of water tap (or valve) makes water service pipe 3, feed pressure Ps＜Pq, then the water in the QS jar flows into water service pipe 3 through flap valve 9 and strainer GL, makes the also Zot curve in Fig. 7 of QS pressure tank Pq, drops to 9 points very soon.At this moment, Hq≤Hk, Pq≤Pk, the DY table sends Sk signal, J=1 one time.Thereby channel to channel adapter becomes " N
=∑ J-∑ K=1 gives the power supply of N=1 control channel, connects A.C. contactor CJo, starts the little pump motor M0 of voltage stabilizing.Simultaneously, give electromagnetic valve DF-2 power supply T2 second.So the water of well backs down bottom valve GD, through suction water pipe 1, after supercharging on the Bo pump, be pressed into water service pipe 3, water pipe network 8 is supplied water.If water supply volume Qu at this moment is less than the Bo pump delivery, Ps＞Pq then, the current of strainer GL change direction, and a part of water of water service pipe 3 filters the back at GL and flows into the A chamber of water control aeration valve SBQ and close flap valve 9.From Fig. 4 finding, at this moment, A cavity pressure water charges into piston cavity C through metering hole 43, promote spool 42 left, first close valve orifice D2, after open valve opening D1 and be communicated with A and B chamber, the water in A chamber flows into air supply tank BQ through valve opening D1 and B chamber, and the empty G﹠W in it together is pressed into flap valve 13 and water control flow-limiting valve SKX.From Fig. 5 finding, at this moment, make the water of piston 52 tops because electromagnetic valve DF-2 is opened, leak into return pipe 14 through this electromagnetic valve, thereby the press water that flows into the SKX water inlet upwards promotes piston 52, close valve orifice.Therefore, the minor amount of water of having only the process current limliting to chew 53 apertures continues to charge into the QS jar, and Pq rises very slow, and is also very slow to the reacting condition of feed pressure Ps.Here it is utilizes the metering function of SKX valve, the QS jar is become make water capacity formula time-delay relay, implements the process of time-delay water-filling.
When the QS pressure tank rose to Pq=Pt, the DY table sent St signal, K=1.Thereby channel number becomes " N
=∑ J-∑ K=0 does not give the power supply of N=1 control channel, cuts the CJ0 that continues, and stops the M0 motor.So QS jar air pressure becomes Pq＞Ps again, repeat aforementioned air pressure drainage procedure.QS pressure tank Pq in this process, very fast decline once, so be called the negative pulse drainage procedure again.Water (flow) direction at this process middle filtrator GL changes again once, than the bigger flow washing filter screen of water filling process, and multiple extensive its clean conditions.
If this pulse water discharge time Tp of QS jar is too short, have little time to suck air from inlet valve 12, the not enough problem of QS jar tonifying Qi takes place.And the length of Tp is proportional to QS jar size.So, the volume of auto-pneumatic cylinder;
The maximum air-capacitor coefficient of α k=Vk/Vqs-QS jar in the formula;
The stopping of β o=Qot/Qok-Bo water pump, turn on pump point flow-rate ratio;
Obviously, QS tank volume Vqs is proportional to the little pump of voltage stabilizing in the maximum Volume of Displacement △ Vp=VokTp value of Tp in the time.Reduce this displacement with regard to Miniaturizable.
Yet that does not take that other measure reduces the little pump of increase voltage stabilizing that Vqs will inverse ratio merely per hour opens, stops frequency n o, might burn out motor.So patent of the present invention has been taked the throttling time-delay measure of SKX valve.The metering hole area of this valve;
φ in the formula
X-metering hole discharge coefficient;
" no
The pulsation number of times allowable of-pump motor.
2, the big flow of Qu＞Qot district constant speed throttling adjustment process, it belongs to drag characteristic and is in whole efficient region between Zot＞Z 〉=Zm, and following two kinds of situations are arranged.
1) the increase process of usefulness discharge Qu and water pump platform number in parallel.
If the user strengthens water tap aperture and quantity, then the water service pipe drag characteristic among Fig. 7 is the center with the Hj point, tilts from Zot → Zm direction.In this process, at first the operating point of Bo pump along the no curve from g → h → a point descends.So feedwater flow is increased to Qok from Qot.If at this moment Hq≤Hk, be Pq≤Pk, then DY table sends Sk signal, J=1 again.Therefore, channel number becomes " N
=∑ J-∑ K=2 gives N 〉=2 control channels power supply, connects CJ1, drives electric M1, and cuts off M0.Meanwhile, give DF-1 electromagnetic valve energising T1 second.Thereby, changing feed pump B1 into by the B0 pump and supply water, this pump operating point rises to i rapidly along the Zok curve from a, and water service pipe pressure becomes Ps＞Pq.Therefore, except that the user supplied water, some water flowed into the water control mouth (see figure 5) of this valve simultaneously again through GL → SBQ → BQ → flap valve 13 → SKX valve through DF-1, promote piston 52 downwards, opens valve opening and makes big water gaging charge into the QS jar.From then on, the QS jar that is in " time-delay reaction " state is converted to " fast reaction " state, in time adapt to the variation of feed pressure Ps.
In like manner, the tap that continues to fetch boiling water makes drag characteristic continue to be reduced to the whole process of Zm from ZoK, B1 pump operating point along the n curve from i → j → during the b point, start M2, B1+B2 work is during again from b → k → l → C, restart M3, with the B1+B2+B3 state, from C → X → M point.Thereby feedwater flow reaches maximum value, Qmax=3Qk.
(for example, fire fighting state) makes the water service pipe drag characteristic quickly fall to Z2k from Zot if user's valve is opened suddenly, and then water service pipe pressure also becomes Ps＜Pq≤Pk rapidly and keeps the long period.At this moment from Fig. 3 finding, it is long that the DY table sends the Sk signal time, and timer is every to cut off the Sk signal one time through Tk second, and the number of times that increases J=1 makes channel number " N
Also increase by a number second every Tk.Thereby, cut off Bo second through Tk, start the B1 water pump, start B2 second through 2Tk again and become B1+B2, through 3Tk second, start B3 and become B1+B2+B3 again, the operating point of last three water pumps rises to the X point along the Z2k curve simultaneously, has reached desired flow Qx and lift Hx.
2) the minimizing process of usefulness discharge Qu and parallel water pump platform number.
At maximum feedwater flow state, the user close gradually water tap (or valve) then the water service pipe drag characteristic be the center still with the Hj point, tilt from Zm → Zot direction.In this process, at first, the operating point of three water pumps along the 3n curve from M → X → the d point changes.Because Ps＞Pq, QS jar are in quick water-filling state.When Pq 〉=Pt, from Fig. 3 finding, the DY table sends the St signal one time, and K=1 makes channel number become " N
=4-1=3 does not give N 〉=4 control channels power supply, thereby cuts off CJ3, stops the B3 pump work.The operating point of two feed pumps of the residue Z3t curve in Fig. 7 rapidly drops to the l point from d, and this lift is higher than Hk, and two water pumps are in steady-working state.
In like manner, continue to close water tap Z3t → Zot is changed, then B1+B2 pump operating point cuts off the B2 pump when l → k → e point, and e → j → i → f point stops B1, startup Bo, and then, continuation repeats the pulsation water supply process in aforementioned Qu≤Qot flow district behind f → h → g point.
If make the water service pipe drag characteristic from Zm → when Z=∞ changed rapidly, the long period kept Ps＞Pq 〉=Pt state at the unexpected valve-off of maximum feedwater flow state (for example, fire-fighting finishes, water pipe break etc.).At this moment, from Fig. 3 finding, it is long that the DY table sends the St signal time, and timer cuts off St one time every Tt second, increases the number of times of K=1, thus channel number " N
Also reduce a number second every Tt.So, stop the B3 pump second through Tt, stop the B2 water pump through 2Tt, stop B1 second through 3Tt, start B0 heavily again, last 4Tt stops the B0 pump second, stops to supply water.
Obviously, in the above course of work, it is that least work Hk * Qm area of zero is compared that the included area of the spent electric energy of BYG type feeding engine and the O → Ht → d → X → M → Qm → O among Fig. 7 becomes ratio and pressure oscillation, has consumed the area that Hk → Ht → d → X → M → Hk comprises more.Therefore, reduce to stop pump lift difference △ H=Ht-Hk, the upper and lower limit pressure reduction △ P=Pt-Pk value of setting in the DY that also the says so table can improve energy-saving effect.
Yet △ H is too small, as BPS equipment flow imbalance district and pulsation power consumption problem takes place.As shown in Figure 7, two termination of pumping point f on Zt and Z2t curve and e, the right side that all is positioned at turn on pump point a and b is then.Therefore, between △ Q1=Qt-Qok and △ Q2=2Qt-Qk, exist and regulate the imbalance district that user's valve also can't obtain regime flow in any case, they will influence the functional performance of feeding engine.If the termination of pumping lift is dropped to Ht ', then during Z=Zok, the B1 pump will be in constantly and open, stop state repeatedly between a and i point of this curve.The B2 pump also is in same state on the Z=Zk curve.The pulsation process of this water pump not only rolls up the reliability that power consumption also has a strong impact on this motor.
Below either way be since between the water pump flow matches improper, perhaps the lift difference is chosen improper causing.Want to eliminate simultaneously, then the flow-rate ratio between the feed pump that specification is identical
β
1＝Qt/Qk≤0.5 （3）
And flow-rate ratio between little pump B1 of voltage stabilizing and the feed pump
βok＝Qok/Qk≥0.5 （4）
According to these two formula, check in correspondence from the H-Q curve of water pump, △ H=Ht-Hk value then, is converted to pressure differential △ P=Pt-Pk, is set in the upper and lower contact of DY table.
In addition,, also must solve the suction capactity problem of every centrifugal water pump (except the self priming pump), prevent zero delivery idle running phenomenon in the updraft type occasion.
As everyone knows, general centrifugal water pump, its axle seals all imprecisions, can't prevent when shutting down that outside air from flowing in it.If the bottom valve of suction water pipe water inlet because of the sand in the water, fits badly closely, leaks, and then both can lose suction capactity.When restarting, this pump will dally with zero delivery, not only electricity wasting but also cause insufficient water.This is so far, does not remove one of difficult problem of end solution on all updraft type water supply systems as yet.
For this reason, patent of the present invention has at first adopted highly sensitive bottom valve GD at the water inlet of every suction water pipe 1, sees Fig. 6.Its profile and common bottom valve are basic identical, but butt mashroom valve 62 and the venturi shaped valve seat 63 that puts O-ring seals is equipped with in its inside.When valve was closed, sand in the water or earth were difficult to rest on the conical diffusingsurface of valve seat.But, as long as O-ring seals 65 these faces of contact only depend on also positiver sealing of valve gravity.In addition, for perfectly safe, also cancelled the flap valve that common exit of pump should be provided with at the delivery port of every water pump.Thereby whichever water pump quits work, and its suction water pipe is to be in band to press full water state eventually, whenever starts the work of all reliably drawing water.
Obviously, can not adopt the sort of suction water pipe draining of general QYS equipment tonifying Qi scheme in this occasion.For this reason, the present invention has adopted another kind of automatic tonifying Qi scheme.From Fig. 3 finding,, give electromagnetic valve DF-3 energising T3 second whenever the DY table sends the St signal once.Thereby open the water control mouth of water control aeration valve SBQ, release the press water of piston cavity C (see figure 4) through DF-3, make A cavity pressure water promote spool 42 to the right, first close valve orifice D1 cuts off two mouthfuls of A, B, after open valve opening D2 and be communicated with B and C mouth.Therefore, BQ jar water is discharged through return pipe 14 rapidly through the SBQ valve by its gravity among Fig. 1, and outside air backs down inlet valve 12 and enters the BQ jar in this process.Pass through T3 second, DF-3 closes, and the water control mouth of SBQ is shut, and promotes spool 42 left, recovers the tonifying Qi water-filling state to the QS jar.Therefore, every water pump stall is once mended once gas to the QS jar.If or the tonifying Qi deficiency, then toggle switch places NK=1.At this moment, do not send the St signal and also can give electromagnetic valve DF-3 energising T3 second second every T4.Thereby, can implement arbitrary number of times tonifying Qi to the QS jar.
At last, also be pointed out that the installation site problem of strainer GL.This structure of filter and common edge type water strainer are basic identical, do not have special feature, but its installation site are one of key of success of the present invention.In order to guarantee that paying all valve operate as normal of system must adopt the fine filter drainage.Yet screen pack is fine and closely woven more, the easy more obstruction of the impurity in the water, the normal drainage capacity of very fast forfeiture.For this reason, the present invention is installed in water service pipe 3(to strainer GL and sees Fig. 1) and the water inlet pipe of SBQ valve between, the normal place that changes of water (flow) direction implements to clean automatically, with anticlogging.
In sum, patent of the present invention has following technical characterictic:
1, at the QS pot bottom flap valve 9, single slope drainage are set; SKX valve and water control are installed with electromagnetic valve DF-1 and DF-2 on the charging pipe after the BQ jar, realize the miniaturization of QS jar by this paper formula (1) and (2) to greatest extent.Compare with QYS equipment, QS tank volume Vqs can narrow down to 1/10～1/30.
2, between strainer GL and BQ jar, adopt SBQ valve and electromagnetic valve DF-3, as adopting small-sized air compressor, any moment arbitrary number of times is implemented automatic tonifying Qi.Thereby, BYG type feeding engine both can be used for updraft type more can be used for straight pot type; Both but fire-fighting also can be lived to produce and be used; Also can and pay the voltage stabilizing that system in combination is exclusively used in fire_fighting pipe network stabilized pressure pump Bo; Also separately the system that pays is connected on the water service pipe of tap water manual pump station and submersible pump and makes its automation or the like, enlarged the scope of application greatly, improved BYG type feeding engine versatility.
3, adopt the very level and smooth water pump of H-Q characteristic, for example, IS series water pump is pressed this paper formula (3) and (4) coupling flow, chooses controlled pressure Pt, the Pk of DY table.Thereby, can implement not have it " accurate constant voltage " of △ P=± 0.03MPa of flow imbalance and pulsation power consumption to supply water, improve energy-saving effect.
4, in the updraft type occasion, the suction water pipe water inlet adopts highly sensitive bottom valve GD, and the flap valve of cancellation pump outlet, eliminates zero delivery idle running problem.Realized the self-priming scheme of following pattern.
(Ordinary Centrifugal Pumps)+(GD valve)-(flap valve)=self priming pump
But, really reach energy-conservation purpose than common self priming pump efficient height.
5, fine filter GL is placed between the water inlet pipe of water service pipe 3 and SBQ valve, water (flow) direction often changes part, realizes the automatic cleaning of GL, guarantees to pay the system works reliability.
6, the programmed logic flow process that adopts small-sized PC to press Fig. 3 is implemented the closed-loop control of switching value, has improved automatization level and reliability, greatly reduces the electric-control system cost.
This shows that water supply facilities of the present invention is inventor's " throttle type pneumatic installation water supply of miniaturization, constant voltageization " (patent No.: 92103795.3) the higher levels of improvement and the development of patent.Have overall merits such as small-sized, general, energy-conservation, reliable, economic, suitable.It will replace all QYS and BPS type water supply facilities now, be generalized to rapidly both at home and abroad, obtain very large economy benefit.
Sub for two example two below.
No content symbolic unit BYG-IV-90 * 50 BYG-IV-90 * 80
1) purposes--life fire-fighting
2) water sucting mode--the straight pot type of updraft type
3) maximum feedwater flow Qm m
3/ h〉85〉87
4) maximum feedwater lift Ht m 51 82
5) minimum feedwater lift Hk m 46 76
6) 1 IS50-32-200 IS50-32-250 of the little pump specification of voltage stabilizing
7) feed pump specification, several 3 the IS65-40-200 IS65-40-250 of platform
8) QS tank volume Vqs m
30.5 0.5
9) general power ∑ N kw 3 * 7.5 3 * 15
10) the PC specification--SP20 C20P
11) flow imbalance district △ Q m
3/ h nothing
12) Qu〉the Qot pulsation--do not have
13) zero delivery idle running--do not have-
14) per day consumption rate Wo KW/m
30.22 0.24
Claims (3)
1, a kind of miniaturization, universal energy-saving pneumatic water supply installation.It comprises, the feedwater main system that several parallel water pumps, valve and water service pipes etc. are formed, pair system and the full-automatic electrical control system is made up of auto-pneumatic cylinder, air supply tank and valve etc.It is characterized in that: main system adopts the very level and smooth one-stage centrifugal water pump of H-Q characteristic, and for example IS is routine water pump, and first water pump Bo is the little pump of voltage stabilizing, and all the other B1, B2, B3 etc. are the identical feed pump of specification.Flow between them is pressed this paper formula (3) and (4) coupling.In the updraft type occasion, every pump outlet is not provided with flap valve, but the water inlet of every suction water pipe 1 is installed the highly sensitive bottom valve GD (patent No.: 93211042.8).And the essential characteristic of the system of paying is: the miniaturization auto-pneumatic cylinder QS with this paper formula (1) design is the center, its top is installed electric contact and is pressed table DYo and DY, the DYo table is used to control the Bo water pump, all the other feed pumps are all by the control of DY table, if the H-Q characteristic of little pump of voltage stabilizing and feed pump is basic identical, then cancel DYo, only with the whole water pumps of DY table control.In addition, between QS pot bottom and strainer GL, flap valve 9 is set, single slope drainage.(patent No.: A mouth 93211044.4) is connected, and the water outlet B of this valve is connected with air supply tank BQ, and the C mouth of this valve links to each other with return pipe 14 with water control aeration valve SBQ and draw less water inlet pipe between this valve and the GL.Then, the water control mouth of SBQ valve is provided with electromagnetic valve DF-3, and its gutter is connected on the return pipe 14.Inlet valve 12 and flap valve 13 are set earlier on the charging pipe at air supply tank BQ top, and then through the water control flow-limiting valve SKX (patent No.: 93211043.6), charging pipe is inserted the bottom of QS jar.At the water control mouth of this SKX valve two electromagnetic valve DF-1 in parallel and DF-2, wherein the water inlet of DF-1 is in parallel with the water inlet of SKX valve, make DF-1 play the effect of supercharging water control mouth, make this electromagnetic valve play the pressure release effect of water control mouth and the delivery port of DF-2 is connected to return pipe 14.
The full-automatic part of electric-control system is a core with miniaturization programmable controller PC, controls DF-1～3 respectively, all A.C. contactor CJi of electromagnetic valve and drive motor Mi.PC is input as electro connecting pressure gauge DY, toggle switch NK, and the switching signal of fire-fighting contact Kx etc. is powered by PC internal DC 24V.At last, QS tank top air pressure Pq is fed back to the whole switching value closed-loop control system of formation in the DY table.
2, the described water supply facilities of claim 1 is characterized in that the automatic program of establishment in the programmable controller PC is handled and control channel by signal, and the logic flow of these two parts constitutes.At first, the logic flow of signal processing is:
1) the DY table detects after the air pressure Pq of QS tank top, at first compares with its upper and lower limit setting pressure Pt and Pk.
2) when Pq 〉=Pk, send a turn on pump signal Sk and be designated as J=1, be input to channel to channel adapter " N
Then cut off signal one time second if the Sk signal is long, increase the input number of times of J=1 every Tk.
3) when Pq 〉=Pt, send a termination of pumping signal St and be designated as K=1, be input into " N
If the St overlong time is then cut off signal one time every Tt second, increase the input number of times of K=1.
4), give electromagnetic valve DF-3 energising T3 second whenever sending the St signal once.
5) channel to channel adapter is by " N
The mathematic(al) mode of=∑ J-∑ K is selected control channel number.
6), but keep the power supply state of passage at that time if Pk＜Pq＜Pt does not send any signal.
7) if " N
=0 all control channel is not powered.
Secondly, the control channel part is by N=1, N 〉=2, and N 〉=3, N 〉=4 passages such as grade are formed, and its quantity equates with the platform number in parallel of pump motor.Its logic flow is:
1) channel number when channel to channel adapter is " N
=1 o'clock, control channel N=1 had electricity, connected A.C. contactor CJ0, and drive motors M0 simultaneously, gives electromagnetic valve DF-2 energising T2 second.
2) as " N
=2 o'clock, give N 〉=2 passages power supply, connect CJ1, drive M1, cut off CJo, meanwhile give electromagnetic valve DF-1 power supply T1 second.
3) as " N
=3 o'clock, CJ2 was connected in N 〉=2, N 〉=3 two a passage power supply, drives M2, and two motors of M1+M2 are worked together.
4) as " N
=4 o'clock, N 〉=2, N 〉=3 and N 〉=4 three passage were all powered, and connect CJ2 again, drove M3, and three motors of M1+M2+M3 are worked together.
3, the described water supply facilities of claim 1 is characterized in that: strainer GL is arranged on and pays system entry, and water (flow) direction is the place of change often, promptly between the water inlet pipe of water service pipe 3 and SBQ valve, implements to clean automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93105125A CN1081222A (en) | 1993-05-06 | 1993-05-06 | Miniaturization, universal energy-saving pneumatic water supply installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93105125A CN1081222A (en) | 1993-05-06 | 1993-05-06 | Miniaturization, universal energy-saving pneumatic water supply installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1081222A true CN1081222A (en) | 1994-01-26 |
Family
ID=4985569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93105125A Pending CN1081222A (en) | 1993-05-06 | 1993-05-06 | Miniaturization, universal energy-saving pneumatic water supply installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1081222A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979159A (en) * | 2010-09-30 | 2011-02-23 | 武汉奋进电力技术有限公司 | Emergency energy storage device |
| CN104464492A (en) * | 2014-12-18 | 2015-03-25 | 柳州职业技术学院 | Water supply-drainage system fault diagnosis practical training device |
| WO2017157088A1 (en) * | 2016-03-18 | 2017-09-21 | 石一用 | Water supply system and container and booster water pump thereof, and water supply method |
-
1993
- 1993-05-06 CN CN93105125A patent/CN1081222A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979159A (en) * | 2010-09-30 | 2011-02-23 | 武汉奋进电力技术有限公司 | Emergency energy storage device |
| CN101979159B (en) * | 2010-09-30 | 2013-06-19 | 武汉奋进电力技术有限公司 | Emergency energy storage device |
| CN104464492A (en) * | 2014-12-18 | 2015-03-25 | 柳州职业技术学院 | Water supply-drainage system fault diagnosis practical training device |
| WO2017157088A1 (en) * | 2016-03-18 | 2017-09-21 | 石一用 | Water supply system and container and booster water pump thereof, and water supply method |
| JP2019510146A (en) * | 2016-03-18 | 2019-04-11 | シー イーヨンＳＨＩ， Ｙｉｙｏｎｇ | Water supply system and its container, booster pump, water supply method |
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