CN1132815A - Small pneumatic water supply equipment for both daily use and fire extinguishment - Google Patents
Small pneumatic water supply equipment for both daily use and fire extinguishment Download PDFInfo
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- CN1132815A CN1132815A CN 95103649 CN95103649A CN1132815A CN 1132815 A CN1132815 A CN 1132815A CN 95103649 CN95103649 CN 95103649 CN 95103649 A CN95103649 A CN 95103649A CN 1132815 A CN1132815 A CN 1132815A
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Abstract
A miniature pneumatic water supply apparatus for both life and fire fighting is suitable for high building. Its life pump and fire-fighting pump, which has been connected via water-controlled check valve, share pneumatic water tank system and electric control system. Said pneumatic water tank is used as quantitative device and auxiliary pump is controlled by PLC to realize miniaturization. Jet pump is used for automatic supplement of compressed air. It can decrease the weight of high-position water tank and prevent secondary pollution.
Description
The present invention relates to a kind of dual-purpose pneumatic installation water supply of life, fire-fighting of miniaturization.
Up to now, domestic and international most high-rise buildings all are connected to potable water network and fire water pipe network on the high level cistern separately, utilize living pump, draw water from underground storage tank.Rise on the high level cistern, utilize the high potential difference of water tank, give two pipe network water supplies.This gravity water supply method, relatively power saving, life, fire-fighting two cover water pump waterworks are also fairly simple, and the unique so far water feeding method that can implement automatic fire control under the situation that is not having electricity by gravity.Yet, life of high level cistern double as and fire-fighting storage cistern, weight is very big, have a strong impact on the shockproof intensity of highrise building, but because which floor is too near from high level cistern at the top, do not reach desired fire fighting hydraulic pressure, pollute to wait and have many problems the second time that causes drinking water again.
So recent years, the numerous and confused a kind of tendency that high level cistern occurs replacing with the frequency conversion type water supply facilities did not have automatic fire control problem under the electric situation but all can't solve at home.In addition, domestic and international test of many times is once crossed the vapour-pressure type fire water supply equipment of the automatic supercharging of nitrogen.Yet, because the long term seal of high pressure nitrogen and storage problem fail to solve the example of neither one success so far.
In view of above situation, the present invention will propose a kind of dual-purpose water supply facilities of life, fire-fighting of miniaturization, be installed in the pump house of basement in high rise building, plan reaches the high level cistern weight that alleviates on the roof, improve the preceding hydraulic pressure of least favorable point hydrant, pollute the second time that prevents drinking water, reaches purposes such as not power consumption of not breaking out of fire fire fighting system.This paper is called for short BYG-(SX) type equipment to the life of this miniaturization, the dual-purpose pneumatic installation water supply of fire-fighting.Based on it, the increase and decrease water pump is also suitably revised the pipeline connection, then can derive the special-purpose water supply facilities of life, be called for short the special-purpose water supply facilities of BYG-(S) type and fire-fighting, be called for short BYG-(X) type and fire_fighting pipe network pressure stabilizing device, be called for short BYG-(W) etc., they all belong to institute of the present invention limited range.
In addition, on the fire fighting equipment of this miniaturization, additional more a kind of fully by, the pure robot control system(RCS) of implementing nitrogen supercharging with waterpower gas control principle reliably, make them near normal high-pressure feed water equipment, then might more thoroughly solve the full-automatic fire fighting problem of high-rise building under the power-off condition.This spare system will be in the separate case application, and the present invention is used as the basis piece of writing of this case.
Below, in conjunction with from Fig. 1 to 7, specifically introduce structure, operating principle, the major technique feature of waterpower flow process of the present utility model, special-purpose components and parts and the water supply facilities of other different purposes of deriving from thus etc.
Fig. 1 is the waterpower flow process of BYG-(SX) type equipment.
Fig. 2 is the structure of water control stop valve.
Fig. 3 sprays pump structure.
Fig. 4 is the electric-control system principle.
Fig. 5 is the live flow process of special-purpose water supply facilities of BYG-(S) type.
Fig. 6 is the flow process of BYG-(X) type fire-fighting special equipment.
Fig. 7 is the flow process of BYG-(W) type fire_fighting pipe network pressure stabilizing device.
Part is the life of BYG-(SX) type, the dual-purpose water work of fire-fighting in the locking wire frame of Fig. 1. It by the life pump feed system, Fire pump water supply system, auto-pneumatic cylinder are paid system and electric-control system, four subsystem compositions.
1. life pump feed system is called for short the SB system. Upper according to 2 to 3 of water uninterrupted parallel connections at living water supply pipe (Gs) Water pump (B0, Bs1Deng), they all are small-sized LG series water pumps, all in the more level and smooth flow region running of H-Q characteristic, reduce The lift variation. In addition general 3 water pumps in parallel all of these kind equipments of great majority, wherein First is the attached little pump that helps, its flow is About half of main life pump. Then, in the import and export of each water pump CD71X-10 type butterfly valve (D) is set, this valve and water pump it Between returning apparatus CH71X-10 type check-valves (H). And the water inlet of every water pump is connected with storage cistern (CS) with suction hose. Then, One end of feed pipe (Gs) is connected to the domestic water pipe network through total gate valve (Zs), and the other end is through water control stop valve (SJ) (Gx) interconnects with the fire water-supply pipe.
2. the fire pump water supply system is called for short the XB system. Upward disappear according to 2 to 4 of fire-fighting uninterrupted parallel connections at its feed pipe (Gx) Anti-pump (Bx), wherein one is stand-by pump. The mode of butterfly valve and check-valves of installing before and after each water pump is fully with the SB system. Then At an end of fire water-supply pipe (Gx) total check-valves (Hx) and water flow indicator (LJ) and four-way pipe (G are installed4), in three outlets of this four-way pipe the gate valve (Zx) of same size is installed all, wherein two are connected with the looped pipeline of fire_fighting pipe network, remaining one with return pipe (Gh) be connected with storage cistern, so that the fire water of the storage cistern that regularly circulates, the fire-fighting of checkout facility Operating mode. In addition, at First fire pump (Bx1) outlet, draw a thin water control pipe (G in the check-valves frontK) and water control The control mouth of stop valve (SJ) connects. This valve is the special valve of BYG-(SX) type, its structure such as Fig. 2. At valve body (2.1) Tighten cylinder body (2.2) on the upper internal threaded, be inserted in its centre bore differential piston with O RunddichtringO (2.5) and (2.6) ( 2.3), its hypomere is middle thin two pluckings balanced type piston rods. Then, valve gap (2.4) is tightened on cylinder body top. Water control Guan Lian Receive in this valve gap center cone screwed hole. When starting the First fire pump, press water inflow differential piston (2.3) Top, downward pushing piston, close valve orifice prevents that fire water from flowing into living system. But, when fire pump does not turn round, owing to live Section does not have hydraulic pressure beyond the Great Wall, enters the domestic water of valve body lower portion, upwards promotes differential piston (2.3), is pressed into fire water-supply pipe (Gx), It is motionless that differential piston is on the upper limit position for a long time, and O RunddichtringO hardly weares and teares.
3. auto-pneumatic cylinder is paid system, is called for short the QS system.It is that auto-pneumatic cylinder (QS) with miniaturization is the center, and two electro connecting pressure gauges (DY) are installed on tank body top, DYs table control SB system wherein, and DYx table control XB system.Water level controller (QW) is set in the middle and lower part of tank body, and the tank base gutter is through air-spring type check pressurizing valve (HB) and tee piece (G
3) be connected with the water inlet of water jet pump (PB).Then, the other end of this tee piece is connected on the fire water supply pipe (Gx) after strainer (GL) is installed.The structure of air-spring type check pressurizing valve (HB) is at utility model (application number: 95207601.2) go up disclosure in detail.At the structural principle of this summary water jet pump (PB), see Fig. 3.It is earlier outlet to be inserted in the suction chamber (3.4) for the sparge pipe of nozzle (3.3), and pad up-hole plate (3.2) is connected with water inlet pipe (3.1), and the other end of suction chamber is inserted in trunnion (3.5) afterwards, and is bolted with diffuser pipe (3.6).Then, diffuser pipe outlet install waterproof solenoid valve (DF) afterwards with near any suction water pipe be connected.When closing electromagnetic valve, during the outlet of sealing diffuser pipe, the water that flows into water inlet pipe (3.1) is pressed into trunnion (3.5) afterwards through orifice plate (3.2) and sparge pipe (3.3), turns round 180 °, is pressed into the air supply tank (BQ) of its top from suction chamber (3.4).Otherwise, when electromagnetic valve (DF) is opened in energising, flow into the press water of water inlet pipe (3.1), export after twice current limliting at orifice plate (3.2) and sparge pipe (3.3), spray into trunnion (3.5) at a high speed and take away its all interior air, thereby vacuum takes place.So the water in the air supply tank (BQ) is sucked into suction chamber (3.4) afterwards, together enters diffuser pipe (3.6) with jet water course, is mixed with each other, and kinetic energy is transformed into static pressure, is pressed into storage cistern.At this moment, aspirate the water yield and the ratio that sprays the water yield in the identical time, be called the flow-rate ratio q of water jet pump, it changes significantly with water entry pressure.So the utility model adopts the straightforward procedure that changes orifice plate diameter d x to adapt to the water supply facilities of different pressures, spraying the pump size kind, has reduced to minimum limit.Then, inlet valve (XQ) and flap valve (Ho) are installed, are connected on the auto-pneumatic cylinder (QS) tonifying Qi and moisturizing at last at the top of air supply tank (BQ).
4. electric-control system is seen Fig. 4.The core of this system is a subminiature programmable controller, is called for short PLC.Mode of occupation through 2 years shows, the SP10 of Japan OMRON, SP16 and SP20 series of products, and reliability is very high, does not take the post as why to hinder, and price is also lower than home-made machine.So, be core with them, on its input wires terminal, connect two electro connecting pressure gauges (DYs and DYx), water level controller (QW), toggle switch (NK with lead
1), the relevant contacts of the auxiliary reclay (Kx) of water flow indicator (LJ) and storage cistern lowest water level controller (SW) etc., power by PLC inside 24VDC.And on its output wiring terminal, connect all A.C. contactor (CJ that drive pump motor
i) and the circuit of electromagnetic valve (DF) and storage cistern lowest water level alarm lamp etc., all adopt outside 220VAC power supply.In addition, the automatic switchover of the two cover power supplys that also must have, the step-down program start of high-power fire pump, the operating mode demonstration of the sound and light alarm of fire-fighting operating mode and each components and parts etc. does not all belong to institute of the present invention limit scope, is not described further.In addition, about the program control part of PLC internal logic, because narration inconvenience is only being introduced operating principle and relied on it to realize doing on the auto-pneumatic cylinder miniaturization issues some brief description.
Below, in conjunction with Fig. 1 to 4, introduce the operating principle of BYG-(SX) type equipment.
With discharge Qu less than the attached semi-fluid amount that helps little pump, i.e. the pulsation water supply process of Qu≤Qo/2 scope.Open a small amount of water of several water taps, then the pressure in the domestic water pipe (Gs) progressively descends, and is lower than the air pressure in the auto-pneumatic cylinder (QS), so jar interior water backs down the reaction trap of check pressurizing valve (HB), enters tee piece (G
3), pass through water control stop valve (SJ) again from strainer (GL) then and be pressed into domestic water pipe (Gs).Because the air pressure draining, QS jar internal gas pressure is followed drawdown, the lower contact pressure of when dropping to electro connecting pressure gauge (DYs) in, setting, and promptly during turn on pump pressure P k, this table sends turn on pump and instructs Sks, and the PLC controller starts the attached little pump (B that helps according to this signal
0).Above process is called the air pressure drainage procedure.Then, because the attached flow that helps little pump is greater than use discharge, unnecessary water passes through water control stop valve (SJ), strainer (GL), is pressed into tee piece (G3).At this moment, because the pressure of domestic water pipe (Gs) is higher than auto-pneumatic cylinder pressure P k, reaction trap in the tee piece one side check pressurizing valve (HB) is closed, this strand current can only enter water jet pump (PB), after turning round 180 ° in it,, charge into air supply tank (BQ) through suction chamber (3.4), then, back down flap valve (Ho) and be pressed into auto-pneumatic cylinder (QS).Because moisturizing, a jar internal pressure is followed water level again and is progressively risen, and when rising to the upper contact pressure P t of DYs table, this table sends termination of pumping instruction Sts.At this moment, the PLC controller repeats above-mentioned air pressure drainage procedure from accepting to stop the attached little pump that helps after this signal trigger a period of time, starts water pump again by the time the auto-pneumatic cylinder internal pressure drops to Pk, repeats the tonifying Qi process.The water supply process that so replaces is called the pulsation water supply process.During this period, the PLC controller detects the time T of each air pressure drainage procedure, compares with the predefined time [Ts] in it then, if T＜[Ts] then elongates the time-delay termination of pumping time, and the attached pulsation number of times of little pump that helps is controlled at per hour 1 to 2 time.Otherwise T＞[Ts] then shortens the time-delay termination of pumping time, the time number limiting of pulsing at 4 to 6 times.Therefore, adopt this method to narrow down to the volume of auto-pneumatic cylinder (QS) and start the attached Min. that helps little pump to accelerate, as several liters.
2.Qu the whole flow region of＞Qo/2, stable water supply process.
Use discharge when increasing, during Qu＞Qo/2, the attached range of flow of little pump (B0) between Qo/2 to Qo that help no longer pulsed, and follows its H-Q characteristic, stable automatic adjusting flow.Therefore, enlargement discharge Qu then the pressure of water service pipe (Gs) reduce because of the decline of pump head H.So the water in the auto-pneumatic cylinder (QS) by aforementioned air pressure drainage flow path, flows into and gives water pot (Gs).Jar internal gas pressure also descends, and when dropping to the turn on pump pressure P k of DYs table, PLC (for example: Bs1) and stop attachedly helping little pump to turn round starts two main life pumps central at once.By the time with the metered flow of discharge, when the DYs table sends instruction Sks again, restart second feed pump, strengthen feedwater flow by PLC above a feed pump.
Otherwise, reduce and use discharge Qu, then along with the H-Q characteristic, the lift of water pump is increased, and water service pipe (Gs) internal pressure rises, and a part of water is pressed in the jar along aforementioned auto-pneumatic cylinder moisturizing flow process in the pipe, and a jar internal gas pressure is also risen.When rising to the termination of pumping pressure P t of DYs table, the termination of pumping instruction Sts that PLC sends according to this table, the feed pump that cut-out starts earlier is (for example: Bs1).Use discharge by the time further reduce, when the DYs table sends the termination of pumping signal again, stop last feed pump and start the attached water pump (B0) that helps at once.If change back and forth near the attached metered flow Qo that helps little pump with discharge Qu, then a water pump in the middle of two feed pumps of PLC controller alternate-running.
3. the automatic tonifying Qi process of water jet pump-air supply tank mini system.
Whenever starting any living pump, by the time when the moving pin of electro connecting pressure gauge (DYs) had broken away from its lower contact, electromagnetic valve (DF) was opened in the energising of PLC controller, causes the commutation process of the interior current of water jet pump (PB) as previously mentioned, the suction air supply tank flows backwards it.So flap valve (Ho) is closed, a jar internal pressure drops to and is lower than atmospheric pressure, and outside air backs down inlet valve (XQ) and sucks air supply tank.Then, when by the time being full of, PLC closes electromagnetic valve (DF), makes 180 ° of water jet pump flow direction-changings, charge into air supply tank through suction chamber (3.4), compress the air in it, close inlet valve, back down flap valve (Ho), be pressed into auto-pneumatic cylinder (QS), mend one time compressed air, continue moisturizing then.
If certain reason auto-pneumatic cylinder compressed air very little, water level is too high, for example: during equipment Installation and Debugging for the first time, connect toggle switch (NK
1), then the PLC controller is opened an electromagnetic valve (DF) every energising in tens seconds, repeats above tonifying Qi process automatically, and drawdown is sent it and is stopped till the tonifying Qi signal to water level controller (QW) water level that limits in jar.At this moment should disconnect NK
1, enter normal tonifying Qi state automatically.
4. fire water supply process.In case breaking out of fire is no matter fire-fighting button or water flow indicator (LJ) all make relay K x action.So the PLC controller at first starts first fire pump (Bx
1), the circuit that cuts off electromagnetic valve (DF) simultaneously stops tonifying Qi.At this moment, the fire water of storage cistern is drawn into first fire pump, flows into water control pipe (Gk) after being pressurized, close water control stop valve (SJ), then, be pressed into fire water supply pipe (Gx) and back down total flap valve (Hx) and water flow indicator (LJ), pass through cross (G4) again, supply water to fire_fighting pipe network.If at that time fire consumption specified drain discharge greater than first fire pump, then as the SB system principle, the pressure of auto-pneumatic cylinder (QS) drops to the lower contact of electro connecting pressure gauge (DYx), turn on pump pressure P kx, send turn on pump instruction Skx, the PLC controller starts second fire pump (Bx again
2), strengthen feedwater flow, still not enough, the moving pin of DYx table does not break away from lower contact, and so, PLC starts standby fire pump (Bx again
3), finish up to fire-fighting.During this, if reduced fire consumption, QS jar internal pressure rises to the upper contact-termination of pumping pressure P tx of DYx table, sends termination of pumping instruction Stx, and then the PLC controller stops second fire-fighting earlier and collapses (Bx
2).Then, stop stand by pump (Bx again
3).And first water pump (Bx
1) can only after fire-fighting connects bundle, manually stop.
In sum, the present invention-BYG-(SX) type life, the dual-purpose water supply facilities of fire-fighting have following technical characterictic.
1. adopt water control stop valve (SJ), SB and two systems of XB are interconnected, be in normally open at this valve at ordinary times again, XB system and fire_fighting pipe network are in pressurized state all the time in the therefore long-term domestic water process, and the minimum operating pressure of living system is turn on pump pressure P K, generally is taken as
Pk＝0.01(HJ＋Hf＋ΔH)，MPa (1)
≈ 0.0l (Hs+l5～17), H in the MPa formula
J-from water service pipe (Gs) to top layer with the hydrostatic height the water valve, m;
The lift that the Hf-top layer will keep before with water valve, about 7m:
During Δ H-maximum feedwater flow, the total losses of life pipe network approximates 8-10m.Yet the water of fire_fighting pipe network is immobilising.So the static pressure before the top layer hydrant is
Δ Px＞Pk-(0.01H
J) ≈ 0.15～0.17MPa (2) meets the requirement greater than 0.07MPa fully.Therefore, the XB system no longer needs to keep traditional stable-pressure device of fire_fighting pipe network pressure, does not consume any electric energy at ordinary times.Because top layer hydraulic pressure is enough, press Fig. 1 again, two cover pipe networks are connected with high level cistern, only stock fire water in the water tank, then not only alleviated the weight of high level cistern, prevented that again the second time of living water use from polluting, also saved the water-line of high level cistern.
2. help little pump surging between delivery period attached, utilize PLC, detect each air pressure water discharge time, the method for control pulsation number of times is actually auto-pneumatic cylinder is used as quantitative bucket, and discharge was used in actual measurement at that time, and control detects the method for number of times again.Because each air pressure displacement almost is identical, it equals
Δ V=[α
k(Pt-Pk)/(Pt+1)] * the Vo formula in the termination of pumping pressure of Pt-DYs table upper contact, the i.e. maximum pressure of water pump;
The turn on pump pressure of Pk-DYs table lower contact;
(α
k=Vk/Vo-PJ (air-capacitor coefficient during pressure;
The shared volume of gas in auto-pneumatic cylinder during Vk-Pk pressure;
Vo-auto-pneumatic cylinder total measurement (volume).It is removed in water discharge time T, and promptly Qu=Δ V/T is exactly an actual used water flow at that time.Therefore, T＜[Ts] illustrates at that time usefulness discharge greater than setting flow, the termination of pumping of needn't being eager, can reduce the detection number of times, and T 〉=[Ts] illustrates usefulness discharge less than limited flow rate, suitably accelerate to detect number of times, in case stop water, then can shut down in good time, prevent the water pump heating.Obviously, the pulsation number of times of water pump no longer depends on the flow of auto-pneumatic cylinder volume size and water pump, according to user's situation, arbitrarily by setting in the PLC and control.This has just opened up beyond example simple reliable method for the miniaturization of auto-pneumatic cylinder.Current U.S. BOOSTER water supply facilities or Japanese Off
Water supply facilities etc., that is a kind of all fails to find this method, the lift that but adopt to strengthen water pump is poor, it is inferior to 100 (U.S.) that the number of times of pulsing is brought up to 20 (Japan), close after the reducing valve by metering hole moisturizing or adopt the custom-designed flow switch and the time relay to unite time-delay termination of pumping etc. at a slow speed, take multiple measure just to realize the miniaturization of auto-pneumatic cylinder.Obviously, this is a kind of many energy consumptions, raise the cost, reduce the miniaturization method that reliability again can not be general,
3. the more small-sized air supply tank (BQ) of water jet pump (PB) is housed in the configuration bottom, auto-pneumatic cylinder next door of miniaturization, opening by electromagnetic valve (DF) then, the pass process, make the current commutation of air supply tank, adopt a kind of so new type auto tonifying Qi mode, compare with traditional high water level gravity tonifying Qi mode, be not subjected to the restriction of storage cistern water level height, it is not the small-power tonifying Qi, open, stop powerful pump motor, outlet valve needn't be set, electromagnetic valves etc. prevent excessive tonifying Qi components and parts, only change the diameter d x of orifice plate (3.2) and the time length that electromagnetic valve (DF) is opened in the interior energising of PLC, on the water supply facilities applicable to any different pressures and flow.Therefore, adopt the present invention, can pay system whole auto-pneumatic cylinder, unified standard (for example: QS tank volume: 0.22m turns to single specification
3BQ tank volume: 5L; The water spray aperture of PB pump: φ 3 or 4.5mm, adopt PDF-40 electromagnetic valve etc.), be common on all different size BYG-(SX) type double-duty plants or the distinct devices such as life, fire-fighting special equipment and fire_fighting pipe network pressure stabilizing device, the single-piece production mode of QS system is converted to the batch process mode, can reduce cost significantly, improve the quality of products.
4. which kind of water supply facilities no matter comprises high level cistern, and any moment all guarantees the hydraulic pressure of top layer, then must be used as design second flow amount the maximum feedwater flow Qmax of water pump system, otherwise top layer generation lack of water phenomenon during the water of peak usually.Yet design second flow-rate ratio is per day big 4 to 6 times with discharge, if adopt a high powered water pump to supply water, this pump long-time running is wasted much electricity in low discharge, low efficiency region.So the present invention has adopted two main life pump (Bs during the water of peak
1And Bs
2) parallel connection or alternate-running; And the attached little pump (Bo) that helps of the following flow region of Qmax/4 is connected; And all water pumps are limited to little pressure differential, efficient district, steady operation; Only in the low discharge district of Qu≤Qmax/8, the Bo pump just supplies water a kind of like this conservation measures with the low frequency pulsation.In addition, power failure pressurize effect of small-power water jet pump (PB) high efficiency tonifying Qi and air-spring type check pressurizing valve (HB) or the like is adopted in not power consumption of XB system at ordinary times, makes this water supply facilities have tangible energy conservation characteristic.
5. last, the present invention takes following all measures to improve the reliability of equipment.
1). adopt the Japan OMRON SP series of PLC of high reliability.
2). flap valve (Ho), the valve of inlet valve (XQ) and the reaction trap of check pressurizing valve (HB) etc. of frequent action, all adopted the little distortion end face of rubber packing Sealing Method, through up to a million actions, maintenance sealing performance as the same.
3). the differential piston of water control stop valve (SJ), the interior slipper seal of check pressurizing valve (HB), often be in not motion state, prevented the wearing and tearing of its O shape circle.
4). by tee piece (G
3) the frequent characteristic that changes of interior water (flow) direction, automatic cleaning strainer (GL) prevents its obstruction.
5). fire water supply pipe (Gx) end is provided with big flap valve (Hx), prevents the refluence of fire_fighting pipe network water, prevents to pollute the SB system, also makes fire_fighting pipe network pressure be higher than Pk for a long time.
6). cross (G is set
4), connecting return duct (Gh) in the outlet therein, water is stocked in the fire-fighting that regularly circulates, and checks reliability of XB system or the like.
Generally speaking, the present invention adopts water control stop valve (SJ) to connect SB and two systems of XB.The method of a public then cover QS system and electric-control system, highly reliable enforcement life, fire-fighting is dual-purpose to successful precedent is provided on the water problems; And on the miniaturization issues of auto-pneumatic cylinder, created the international advanced method of a better way, thus realized the miniaturization of QS system and the unification of specification, be common to all size water supply facilities; Also have outside energy-conservation, reliable, the low cost and other advantages, be easy to be changed to the water supply facilities of other different purposes on this basis.For example, cancellation XB system changes flow process by Fig. 5, and suitably increases the platform number in parallel of living pump, then becomes the life of BYG-(S) type or produces special-purpose water supply facilities; And cancellation SB system increases a little pump of supercharging (ZB), changes flow process by Fig. 6, then becomes BYG-(X) type fire-fighting special equipment; Cancel all main fire pumps on this basis again, only stay little pump of supercharging (ZB) and QS system, then become BYG-(W) type fire_fighting pipe network pressure stabilizing device etc. as shown in Figure 7, they all belong to extent of competence of the present invention.At last, on the fire water supply equipment of these miniaturizations, additional more a kind of high reliability nitrogen automatic pressure augment system that adopts waterpower-gas control principle, then they all become the higher levels of water supply facilities of the automatic supercharging fire-fighting of short time power failure (or ten minutes) Shi Yineng, and this spare system will disclose on other patent application.
Embodiment 1.BYG-V (SX), life, the dual-purpose water supply facilities of fire-fighting
The SB system, feedwater flow: 2 * 12=24m
3/ h, lift: 24～32m;
Main life pump: 40LG12-15 * 2, platform number: 2;
Attached little pump: 32LG6.5-15 * 2 that help, platform number: 1.
The XB system, fire-fighting flow: 2 * 5=10L/S, lift: 32m;
Main fire pump: IS65-50-160, platform number: 1;
Reserve pump: the same, platform number: 1.
The QS system, auto-pneumatic cylinder volume: Vq=0.5m
3
Air supply tank volume: Vb=10L;
Water jet pump specification: PB-4.5;
Check pressurizing valve specification: QZB-50T.
Electric-control system, PLC specification: SP-20.
Appearance and size, the wide * height of long *: 2900 * 950 * 1800.
Trial URL: Red Star business office of Beijing Jiu Gong industrial and commercial bank.
Mode of occupation: fully automatic operation 1 year, all right.
Embodiment 2.BYG-II (S), the special-purpose water supply facilities of living
The SB system, feedwater flow: 6.5 * 2=13m
3/ h, lift: 24～32m;
Feed pump: 32LG6.5-15 * 2, platform number: 2.The QS system, auto-pneumatic cylinder volume: Vq=0.3m
3
Air supply tank volume: Vb=10L;
The water jet pump specification; PB-4.5.
Electric-control system, PLC specification: SP10.
Appearance and size, the wide * height of long *: 1620 * 660 * 1643.
Trial URL: Beijing China section communication common carrier.
Mode of occupation: fully automatic operation half a year, do not have any fault.
Claims (5)
1. the dual-purpose pneumatic installation water supply of life, fire-fighting that relates to a kind of miniaturization is called for short BYG-(SX) type equipment.It comprises that life pump feed system (be called for short SB system), fire pump water supply system (being called for short the XB system), auto-pneumatic cylinder pay system's (being called for short the QS system) and electric-control system, these four subsystems.It is characterized in that, at first the SB system: at domestic water pipe (Gs) middle part 2 to 3 small-sized LG series in parallel feed pump (Bo, Bs
1, Bs
2), butterfly valve (D) is installed before and after it, at exit of pump flap valve (H) is set also, then an end of water service pipe (Gs) is connected with the living water use pipe network by gate valve (Zs), and the other end is connected on the fire water supply pipe (Gx) by water control stop valve (SJ); Next XB system: on fire water supply pipe (Gx), as the SB system, 2 to 4 fire pumps and valves in parallel, wherein one is stand by pump, export at first fire pump (Bx1), drawing-off water keyholed back plate (Gk) is connected on the valve gap of water control stop valve, at the end of water service pipe (Gx) total flap valve (Hx), water flow indicator (LJ) and cross (G is installed then
4), the gate valve (Zx) of same size is all installed in three outlets of this pipe, and wherein two are connected with the looped pipeline of fire_fighting pipe network, and another is connected with the fire-fighting storage cistern with return pipe (Gh); QS system once more: it is the center with the auto-pneumatic cylinder (QS) of miniaturization, two electro connecting pressure gauges (DYs and DYx) are installed on top at tank body, wherein one (DYs) controls the SB system, another (DYx) is used for controlling the XB system, water level controller (QW) is set in the tank body middle and lower part, and tank body bottom gutter is connected with the water inlet of tee piece (G3) with water jet pump (PB) through air-spring type check pressurizing valve (HB), then, the other end of tee piece is installed strainer (GL), be connected on the fire water supply pipe (Gx), again waterproof solenoid valve (DF) is installed in the injection delivery side of pump, is connected with the suction water pipe of a water pump nearby; Last electric-control system: with SP series subminiature programmable controller (being called for short PLC) is core, connects two electro connecting pressure gauges (DYs and DYx), water level controller (QW), toggle switch (NK respectively with lead on its input wires terminal
1), the relevant contacts of the auxiliary reclay (Kx) of water flow indicator (LJ) and storage cistern lowest water level controller (SW) etc., 24VDC power supply by PLC inside, and connect to drive the circuit of all A.C. contactors (CJ), electromagnetic valve (DF) and the storage cistern lowest water level alarm lamp of pump motor on the PLC output wiring terminal respectively, all adopt the 220VAC power supply of PLC outside.
2: the described water supply facilities of claim 1 is characterized in that: be in the attached little pump (B that helps with discharge Qu
0) the semi-fluid amount below, when this pump supplies water with pulsation, auto-pneumatic cylinder (QS) is used as quantitative bucket, PLC detects its water discharge time T (being inversely proportional to the actual used water flow) at every turn, compare with predefined water discharge time [Ts] in the PLC then, when T＜[Ts], attached to help the number of times that per hour opens, stops of pump be 1 to 2 time by PLC control, and when T 〉=[Ts], bring up to 4 to 6 times, adopt a kind of like this measure, realized the miniaturization of auto-pneumatic cylinder (QS), be common on all different size BYG series water supply facilitiess.
3. the described water supply facilities of claim 1, it is characterized in that: the water control stop valve (SJ) that connects SB and two systems of XB is the special valve of BYG-(SX) type, it is to tighten cylinder body (2.2) on the upper internal threaded of valve body (2.1), its centre bore inner sliding sleeve have a differential piston (2.3) of O-ring seals (2.5) and (2.6), its hypomere is middle thin, two pluckings hydraulic equilibrium formula piston rods, has tightened valve gap (2.4) then on the cylinder body upper external thread.
4. the described water supply facilities of claim 1, it is characterized in that: adopted in the suction chamber top of water jet pump (PB) air supply tank (BQ) that the top is provided with flap valve (Ho) and inlet valve (XQ) is installed, in the water jet pump outlet electromagnetic valve (DF) is installed then, a kind of so automatic tonifying Qi mini system, and water jet pump (PB) is earlier outlet to be inserted in the suction chamber (3.4) for the sparge pipe of nozzle (3.3), after pad up-hole plate (3.2) and the sealing mat, be connected with water inlet pipe (3.1) bolt, and the other end of suction chamber puts trunnion (3.5) and diffuser pipe (3.6) is bolted.
5. the described BYG-of claim 1 (SX) type equipment is characterized in that: cancellation XB system wherein, and then it becomes the life of BYG-(S) type or produces special equipment; Cancellation SB system increases a little pump of supercharging (ZB) then, and then it becomes BYG-(X) type fire-fighting special equipment again; Cancel all feed pumps on this basis, only stay booster pump and SQ system, it becomes BYG-(W) type fire_fighting pipe network pressure stabilizing device again, and so the different water supply facilitiess that derive from from BYG-(SX) type all belong to claim scope of the present invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95103649 CN1132815A (en) | 1995-04-06 | 1995-04-06 | Small pneumatic water supply equipment for both daily use and fire extinguishment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95103649 CN1132815A (en) | 1995-04-06 | 1995-04-06 | Small pneumatic water supply equipment for both daily use and fire extinguishment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1132815A true CN1132815A (en) | 1996-10-09 |
Family
ID=5074763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95103649 Pending CN1132815A (en) | 1995-04-06 | 1995-04-06 | Small pneumatic water supply equipment for both daily use and fire extinguishment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1132815A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100357532C (en) * | 2003-08-01 | 2007-12-26 | 张明亮 | Living and fire--fighting common non-negative-pressure water supply system |
| CN100464039C (en) * | 2007-04-23 | 2009-02-25 | 南昌赣江水工业科技有限公司 | Buried type stacked-pressing non-negative-pressure life fire-fighting common feed water equipment |
| CN101799306B (en) * | 2009-02-11 | 2013-07-17 | 沈忠文 | Mass-flow test method of domestic water |
-
1995
- 1995-04-06 CN CN 95103649 patent/CN1132815A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100357532C (en) * | 2003-08-01 | 2007-12-26 | 张明亮 | Living and fire--fighting common non-negative-pressure water supply system |
| CN100464039C (en) * | 2007-04-23 | 2009-02-25 | 南昌赣江水工业科技有限公司 | Buried type stacked-pressing non-negative-pressure life fire-fighting common feed water equipment |
| CN101799306B (en) * | 2009-02-11 | 2013-07-17 | 沈忠文 | Mass-flow test method of domestic water |
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