CN102423526A - High rise building and fixed fire fighting system thereof - Google Patents
High rise building and fixed fire fighting system thereof Download PDFInfo
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- CN102423526A CN102423526A CN2011102731883A CN201110273188A CN102423526A CN 102423526 A CN102423526 A CN 102423526A CN 2011102731883 A CN2011102731883 A CN 2011102731883A CN 201110273188 A CN201110273188 A CN 201110273188A CN 102423526 A CN102423526 A CN 102423526A
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Abstract
The invention discloses a fixed fire fighting system of a high rise building. The system which comprises a pump room and vertical fire fighting tubes arranged in the high rise building is characterized in that: a plunger pump is arranged in the pump room, the plunger pump comprises two plunger groups which are respectively formed by a medium cylinder and an oil cylinder, the piston of the medium cylinder and the piston of the oil cylinder of each plunger group synchronously move, and the through-flow port of the cylinder of each medium cylinder is communicated with an unidirectional inflow valve for the unidirectional conduction from the outside to the inner cavity of the cylinder and an unidirectional outflow valve for the unidirectional conduction from the inner cavity of the cylinder to the outside; the unidirectional inflow valve is communicated with a water source; and the two oil cylinders alternatively telescope under the control the a control valve. The plunger pump of the present invention adopts two oil cylinders to alternatively forward and backward, so the pistons of the two medium cylinders alternatively move. Compared with the prior art, the system of the invention can effectively improve the output flow and the water pressure on the basis of continuous water supply. In addition, the invention also provides the high rise building with the fire fighting system.
Description
Technical field
The present invention relates to fire prevention, particularly a kind of skyscraper and fixing fire-fighting system thereof.
Background technology
Constantly soaring along with commercial and civilian high-rise building whole height, skyscraper because highly high, the number of plies is many, complex structure, personnel are concentrated, during fire burning fierce, spread rapidly, very easily form stereo burning, bring very big difficulty to fire attack.Can the fire of high-rise building of putting out a fire to save life and property in time and incessantly be organized to delivery of water, satisfies the fire extinguishing required water yield and hydraulic pressure, is directly connected to the success or failure that fire extinguishing is sued and laboured.Obviously, the high-rise building fire of putting out a fire to save life and property needs powerful fire-fighting fire extinguishing equipment.
When having the high-rise building breaking out of fire now, three kinds of fire extinguishing schemes are arranged usually.
First kind is to utilize mobile fire-fighting equipment directly to supply water.When the fixedly fire fighting device in the building can not satisfy normal use and maybe can not satisfy the water for fire extinguishing demand, the fire fighter can only pass through vertical lay out, utilized the direct water supply of fire fighting truck tissue, was illustrated in fig. 1 shown below.Shortcoming has 2 points, and the one, restriction is highly arranged, supply water through the Shanghai high building fire fighting and test, three chassis Series Sheet mains water reach as high as 246 meters, and high again skyscraper need be lifted series connection of pumps water supply fire extinguishing through fire fighting truck and hand; Another is many car series connection, and setup time is long, the easy explosion of water band.
Second kind is utilize to move the fire-fighting equipment water supply that combines with fixing fire fighting device.Fixedly fire pump can't normally move or interior fire supply can not satisfy the fire extinguishing demand and is, should utilize fire fighting truck to pass through siamese fire department connection and supply water to the building fire_fighting pipe network, but must reduce pressure to water supply.Shortcoming is that the pressure of supply water of existing fire fighting truck generally has only 2.0MPa, and the fire standpipe in the building is not high pressure resistant.
The third is to utilize fixedly fire fighting device water supply.The high-rise building breaking out of fire is when the fire fighter shows up, if the visual observation intensity of a fire is little; Should carry water band, hydraulic giant and interface immediately; Utilize Fire lift to ascend a height rapidly, directly use the indoor fire hydrant fire extinguishing, start fire pump simultaneously to the indoor fire-fighting pipe network water supply to fire bed.Shortcoming is that the indoor fire hydrant maximum can only reach 40L/s, and pressure has only 2.5Mpa, disregards the pressure loss of fire standpipe, also can only play effect to the high-rise building below 250 meters.
Above-mentioned analysis can be known; When having the skyscraper breaking out of fire now, the outlet pressure of on the one hand existing fire fighting truck is generally 2.0MPa, advances line loss; Pressure behind the height of arrival more than hundred meters also can only can not effectively put out high-rise fire below 0.4Mpa; On the other hand; Its fixedly fire fighting device can not effectively satisfy the requirement of water for fire extinguishing amount, present common fire pump can only be delivered to the height about hundred meters with water usually, after higher floor breaking out of fire; Pressure of supply water is not enough, and uncontrollable then fire spreading causes heavy losses without redemption.
In view of this, demand urgently being optimized design, on the basis of effectively avoiding the fire main loss, the requirement of satisfying high building fire fighting water for fire extinguishing pressure and output flow is provided, accomplish the fire extinguishing operation efficiently, reliably to the fixedly fire fighting device of skyscraper.
Summary of the invention
To above-mentioned defective, the technical problem that the present invention solves is to provide fixedly fire-fighting system of a kind of skyscraper, with reliable raising pump output pressure and flow, satisfies the demand of high-rise building fire-fighting fire extinguishing.On this basis, the present invention also provides a kind of skyscraper with this fire-fighting system.
Skyscraper provided by the invention is fire-fighting system fixedly; Comprise pump house and the fire standpipe that places in the skyscraper; Be provided with plunger displacement pump in the said pump house; Said plunger displacement pump comprises two plunger groups that are made up of medium cylinder and oil cylinder, the medium cylinder piston of each plunger group and oil cylinder piston synchronous shift, and all is communicated with the outflow check valve that is provided with by export unidirectional conducting outward to the inflow check valve of the unidirectional conducting of inner cavity of cylinder, by inner cavity of cylinder to outer flow with the through-flow mouth of each medium cylinder cylinder barrel; Said inflow check valve is communicated with the water source; Two said oil cylinders are configured under the control of control valve alternately flexible.
Preferably, also comprise water tank, two said water vats are built in the said water tank.
Preferably, offer the through hole that is communicated with said water tank on the water vat cylinder barrel sidewall of the rod chamber outer end of said water vat.
Preferably, said outside delivery port is positioned at and two said ends that go out the outlet pipe that water one-way valve is communicated with.
Skyscraper provided by the invention comprises fixedly fire-fighting system of architecture noumenon and foregoing skyscraper thereof.
Preferably; The hydraulic control system that also comprises said plunger displacement pump; This system comprises pressure oil circuit and oil return circuit; Said control valve is configured to have two operating positions: in first operating position, the pressure oil circuit is communicated with the rodless cavity of first oil cylinder, the rod chamber of second oil cylinder, and oil return circuit is communicated with the rod chamber of first oil cylinder, the rodless cavity of second oil cylinder; In second operating position, the pressure oil circuit is communicated with the rod chamber of first oil cylinder, the rodless cavity of second oil cylinder, and oil return circuit is communicated with the rodless cavity of first oil cylinder, the rod chamber of second oil cylinder.
Preferably, said control valve is specially: be arranged on two chambeies of first oil cylinder and the first hydraulic control direction valve between pressure oil circuit and the oil return circuit, and be arranged on two chambeies of second oil cylinder and the second hydraulic control direction valve between pressure oil circuit and the oil return circuit; And two said oil cylinders all offer the hydraulic fluid port of winning the confidence that is communicated with inner cavity of cylinder, said win the confidence hydraulic fluid port and the rodless cavity end between the cylinder barrel sidewall of distance greater than oil cylinder piston length place on; And the hydraulic fluid port of winning the confidence of said first oil cylinder is communicated with the control port of the said first hydraulic control direction valve and the second hydraulic control direction valve; To drive the first hydraulic control direction valve and the second hydraulic control direction valve lays respectively at first operating position and second operating position; The hydraulic fluid port of winning the confidence of said second oil cylinder is communicated with the control port of the said first hydraulic control direction valve and the second hydraulic control direction valve, to drive the first hydraulic control direction valve and the second hydraulic control direction valve lays respectively at second operating position and first operating position.
Preferably; Also comprise two valves of winning the confidence that are separately positioned between two oil cylinders and the corresponding hydraulic control direction valve, the oil-in of each valve of winning the confidence is communicated with the hydraulic fluid port of winning the confidence of corresponding oil cylinder, the pressure balance hydraulic fluid port is communicated with the hydraulic fluid port of the rod chamber of corresponding oil cylinder, oil-out is communicated with the control port of corresponding hydraulic control direction valve.
Preferably; The cylinder barrel bottom of two said oil cylinders is provided with the buffering bypass of regaining the unidirectional conducting of direction along piston; The oil-out of said buffering bypass is communicated with inner cavity of cylinder through cylinder tube bottom, and the oil-in of said buffering bypass is communicated with inner cavity of cylinder through the cylinder barrel sidewall of the distance between bottom cylinder barrel greater than oil cylinder piston length place.
Preferably, pressure oil route first oil pump feed that is communicated with first oil cylinder through the said first hydraulic control direction valve, pressure oil route second oil pump feed that is communicated with second oil cylinder through the said second hydraulic control direction valve; And, between the liquid outlet of two pumps and oil return circuit, be provided with overflow valve.
Compared with prior art; Fire-fighting system provided by the invention is improved to the plunger displacement pump of output pressure medium; This plunger displacement pump comprises that two constitute the plunger group, the medium cylinder piston of each plunger group and oil cylinder piston synchronous shift, i.e. hydraulic control duplex plunger pump by medium cylinder and oil cylinder; Be provided with by outward to the inflow check valve of the unidirectional conducting of inner cavity of cylinder, export the outflow check valve of unidirectional conducting owing to all is communicated with, and two said oil cylinders are configured under the control of control valve, replace and stretch by inner cavity of cylinder to outer flow with the through-flow mouth of each medium cylinder cylinder barrel.Compared with prior art; The present invention has broken through traditional water pump structure principle; Adopt two oil cylinders to leapfrog, retreat, thereby drive the alternating movement of two medium cylinder pistons, and then realize the switching of two kinds of duties respectively: one of which;, outflow check valve conducting non-conduction with the inflow check valve that the through-flow mouth of the first medium cylinder cylinder barrel is communicated with; Non-conduction with the conducting of inflow check valve, outflow check valve that the through-flow mouth of the second medium cylinder cylinder barrel is communicated with, under this state, the first medium cylinder cylinder barrel is discharged medium, the second medium cylinder cylinder barrel sucks medium.Its two, the inflow check valve conducting that is communicated with the through-flow mouth of the first medium cylinder cylinder barrel, to flow out check valve non-conduction,, outflow check valve conducting non-conduction with the inflow check valve that the through-flow mouth of the second medium cylinder cylinder barrel is communicated with; Under this state, the first medium cylinder cylinder barrel sucks medium, the second medium cylinder cylinder barrel is discharged medium.Can actual hermetically-sealed construction reliably between medium cylinder piston of the present invention and the medium cylinder cylinder barrel, let out in can effectively preventing; Therefore; Through the said structure optimal design; The present invention intermittently provides on the basis of firing-fighting medium in continuous nothing; Can effectively improve output flow and pressure, through pilot production, this programme can satisfy the requirement of high-rise building fire-fighting fire extinguishing with water pressure 8.0MPa and output flow 40L/s with water as firing-fighting medium fully.
In preferred version of the present invention; On the medium cylinder cylinder barrel sidewall of the rod chamber outer end of medium cylinder, offer the through hole that is communicated with water tank, on the one hand, this through hole can be used to the pressure that volume-variation produces in the balance media cylinder piston motion process medium cylinder cylinder barrel rod chamber; That is to say; When the medium cylinder piston advanced in cylinder barrel, medium cylinder piston rod chamber side volume became the big vacuum that produces, and external agency gets into through this through hole; Otherwise, when the medium cylinder piston is retreated in cylinder barrel, the medium cylinder piston rod chamber side volume generation pressure that diminishes, medium then extrudes from this through hole.In addition, medium can from through hole into and out of, thereby the oil cylinder piston bar that is connected with the medium cylinder piston of cooling, and piston rod can cool off hydraulic oil, thereby has effectively controlled heat transmission of hydraulic system.
In the preferred version of plunger displacement pump hydraulic control provided by the present invention system, two oil cylinders all offer the hydraulic fluid port of winning the confidence that is communicated with inner cavity of cylinder, and this hydraulic fluid port of winning the confidence is configured to be positioned at corresponding oil cylinder and stretches out rodless cavity side constantly fully; And the control port of the first hydraulic control direction valve is communicated with the hydraulic fluid port of winning the confidence of first oil cylinder, and the control port of the second hydraulic control direction valve is communicated with the hydraulic fluid port of winning the confidence of second oil cylinder.That is to say that when piston extend out to stroke terminal, the pressure oil liquid that the respective drive piston stretches out will feed back to the control end of the direction valve of another oil cylinder, and then drive its spool switching-over, vice versa; Thereby control alternately stretching out, regaining of two oil cylinders through hydraulic automatic, have the characteristics of reliable operation.The preferred valve of winning the confidence that adopts is arranged on corresponding winning the confidence between hydraulic fluid port and the control valve, can further improve the functional reliability of the switching-over of surging; Simultaneously, when oil cylinder piston when stretching out extreme position, the pressure oil liquid of rodless cavity can be through the valve one-way flow of winning the confidence to rod chamber, and then avoids stretching out the terminal and produce and impact, and influences the stability of system works.
Plunger displacement pump provided by the invention and hydraulic control system thereof are applicable to any fire-fighting equipment and system.
Description of drawings
Fig. 1 is that existing triple and hand are lifted pump combinatory water supply operation sketch map;
Fig. 2 is the overall structure sketch map of the said skyscraper of this embodiment;
Fig. 3 is the overall structure sketch map of plunger displacement pump described in the specific embodiment;
Fig. 4 is the structural representation of the cylinder barrel of medium cylinder shown in Fig. 3;
Fig. 5 is the schematic diagram of the hydraulic control of plunger displacement pump shown in Fig. 3 system.
Among the figure:
Fire hydrant 10, pump house 20, press water external interface 30, pressure regulator valve 40, fire standpipe 50, pressure loading valve 60, hose coupling 70;
The first plunger group 1; First water vat 11; The first water vat cylinder barrel 111; First oil cylinder 12; The hydraulic fluid port 121 of winning the confidence; First oil cylinder piston 122; The first water inlet check valve 13; First goes out water one-way valve 14; The second plunger group 2; Second water vat 21; The second water vat cylinder barrel 211; Second oil cylinder 22; The hydraulic fluid port 221 of winning the confidence; Second oil cylinder piston 222; The second water inlet check valve 23; Second goes out water one-way valve 24; Water tank 3; Outlet pipe 4; The first hydraulic control direction valve 51; The second hydraulic control direction valve 52; First valve 61 of winning the confidence; Second valve 62 of winning the confidence; First pump 71; Second pump 72; First overflow valve 81; Second overflow valve 82; Through hole 9.
The specific embodiment
Core of the present invention provides a kind of hydraulic control duplex plunger pump of structure optimization; Comprise that two constitute the plunger group by medium cylinder and oil cylinder; The medium cylinder piston of each plunger group and oil cylinder piston synchronous shift, and all is communicated with the outflow check valve that is provided with by export unidirectional conducting outward to the inflow check valve of the unidirectional conducting of inner cavity of cylinder, by inner cavity of cylinder to outer flow with the through-flow mouth of each medium cylinder cylinder barrel; Two said oil cylinders are configured under the control of control valve alternately flexible.Compared with prior art, the present invention can reliably improve the output pressure and the flow of pump, thereby satisfies the demand of high-rise building fire-fighting fire extinguishing.
Specify this embodiment below in conjunction with Figure of description.
See also Fig. 2, this figure is the overall structure sketch map of the said skyscraper of this embodiment.
Need to prove, identical with prior art and the not this Applicant's Abstract graph inventive point of this skyscraper body place, so this paper only to its fixedly the improvement design of fire-fighting system set forth in detail.
As shown in Figure 2; Its fire-fighting system is a fixedly fire fighting device of a cover; Mainly by forming: pump house 20, pressure regulator valve 40 and two cover fire standpipes 50 with plunger displacement pump with the lower part; The delivery outlet of pump house 20 and two cover fire standpipes 50 are communicated with through main line, and the pressure loading valve 60 and the hose coupling 70 of the fire standpipe 50 places setting of every floor or every a few floor settings.Wherein, Fire standpipe 50 adopts high pressure resistant pipe, adapting to the pressure requirement of high-rise building fire demand water, with its adaptably; This programme is provided with pressure loading valve 60, has solved in the fire extinguishing of existing high-rise building the difficult problem that fixing fire fighting device can't satisfy the easy explosion of lay out.
Fixedly the main water source of fire-fighting system comes from fire hydrant 10, certainly, in the actual fire extinguishing work operations, also can select the peripheral hardware medium source according to actual condition of a fire needs, and concrete main line as shown in Figure 2 is provided with press water external interface 30.In addition, also can select the heavy pressure fine spray hydraulic giant, only need hose coupling be replaced by the heavy pressure fine spray hydraulic giant and can realize with interface as the fire extinguishing execution unit.
Below sketch two kinds of operating modes of this fire-fighting system:
Operating mode one: the pump house 20 that carries plunger displacement pump directly supplies water to fire standpipe 50.The plunger displacement pump of opening pump house 20 supplies water, and closing presure water external interface 30 carries out the water source by fire hydrant 10 and replenishes, and regulates pressure regulator valve 40, and supplies water through the floor of 50 pairs of required fire extinguishings of high pressure resistant fire standpipe.At concrete floor, regulate the pressure loading valve 60 in fire standpipe 50 exits nearby, and then connect the water band from hose coupling 70 and put out a fire.
Operating mode two: supply water to fire standpipe 50 by external water under high pressure.Opening pressure water external interface 30 is supplied water to phase fire standpipe 50 through press water external interface 30 by external press water, regulates pressure regulator valve 40, and the floor through 50 pairs of required fire extinguishings of high pressure resistant fire standpipe supplies water.At concrete floor, regulate the pressure loading valve 60 in fire standpipe 50 exits nearby, and then connect the water band from hose coupling 70 and put out a fire.
For seeing the concrete structure of explanation plunger displacement pump according to the invention for details, please in the lump referring to Fig. 3, Fig. 4 and Fig. 5, wherein, Fig. 3 shows the overall structure sketch map of the said plunger displacement pump of this embodiment.
As shown in Figure 3, the first plunger group 1 is made up of first water vat 11 and first oil cylinder 12, and the second plunger group 2 is made up of second water vat 21 and second oil cylinder 22.As shown in the figure, the external part of both oil cylinder piston bars all is connected with corresponding water vat piston, with water vat piston and the oil cylinder piston synchronous shift that realizes each plunger group.Entire arrangement, water vat and oil cylinder can be as shown in the figure coaxial setting, also can the almost parallel setting, obviously, the structure of coaxial setting realizes comparatively simple, and the efficiency of transmission of power is best, so be optimal case.
Be communicated with the mouth of a river of the first water vat cylinder barrel 111 and be provided with the first water inlet check valve 13, to realize by outward to the unidirectional conducting of inner cavity of cylinder; Simultaneously, be communicated with the mouth of a river of the first water vat cylinder barrel 111 and be provided with first and go out water one-way valve 14, to realize by inner cavity of cylinder to the unidirectional conducting of outside delivery port.Equally, be communicated with the mouth of a river of the second water vat cylinder barrel 211 and be provided with the second water inlet check valve 23, to realize by outward to the unidirectional conducting of inner cavity of cylinder; Simultaneously, be communicated with the mouth of a river of the second water vat cylinder barrel 211 and be provided with second and go out water one-way valve 24, to realize by inner cavity of cylinder to the unidirectional conducting of outside delivery port.Because it is alternately flexible that two oil cylinders are configured under the control of control valve, therefore two water vat pistons respectively under the drive of two oil cylinder pistons timed delivery for stretching.Particularly, outside delivery port is positioned at and two ends that go out the outlet pipe 4 that water one-way valve is communicated with, and is used for and the water pipeline connection.
Specific operation process is: control rodless cavity oil-feed, the rod chamber oil return of first oil cylinder 12, simultaneously, the rod chamber oil-feed of second oil cylinder 22, rodless cavity oil return; Under this state, the first water inlet check valve is 13 non-conduction, first go out water one-way valve 14 conductings, 11 drainings of first water vat, and it is non-conduction that the second water inlet check valve, 23 conductings, second go out water one-way valve 24,21 suctions of second water vat.Control rodless cavity oil return, the rod chamber oil-feed of first oil cylinder 12, simultaneously, the rod chamber oil return of second oil cylinder 22, rodless cavity oil-feed; Under this state, it is non-conduction that first water inlet check valve 13 conductings, first go out water one-way valve 14,11 suctions of first water vat, and the second water inlet check valve is 23 non-conduction, second go out water one-way valve 24 conductings, 21 drainings of second water vat.Since can actual reliable hermetically-sealed construction between water vat piston and water vat cylinder barrel, let out in can effectively preventing; Therefore, the present invention can effectively improve output flow and use water pressure not having on the basis of intermittently supplying water continuously.
In addition, water tank 3 can be connected to one with water vat.Shown in the figure, first water vat 11 and second water vat 21 all place water tank 3, all are fixedly connected with water tank 3 walls through adpting flange between water vat cylinder barrel and the cylinder tube.Obviously, as long as its mouth of a river is positioned at the basic need that suction just can be satisfied in the waterline below of water tank 3.
Further combination is shown in Figure 4, and this figure is the structural representation of the said water vat cylinder barrel of this embodiment.Offer the through hole 9 that is communicated with water tank 3 on the water vat cylinder barrel of the rod chamber outer end of each water vat (111, the 211) sidewall.Should be appreciated that through hole 9 can be set to a plurality of and circumferentially is uniformly distributed with along water vat cylinder barrel (111,211).
This through hole 9 can be used to the pressure that volume-variation produces in water vat cylinder barrel (111, the 211) rod chamber in the balance water vat piston motion process; When the water vat piston advances in cylinder barrel; Water vat piston rod chamber side volume becomes the big vacuum that produces, and external water gets into through this through hole 9; Otherwise when the water vat piston was retreated in cylinder barrel, the water vat piston rod chamber side volume generation pressure that diminishes, water then extruded from this through hole 9.In addition, water can from through hole 9 into and out of, thereby the oil cylinder piston bar that is connected with the water vat piston of cooling, and piston rod can carry out cooling heat dissipation to hydraulic oil.
Remove above-mentioned plunger water pump, this programme also provides a kind of hydraulic control system of this plunger water pump, sees also Fig. 5, and this figure is the schematic diagram of plunger water pump hydraulic control system.
The pressure oil circuit P and the oil return circuit T of this hydraulic control system can select system pressure oil circuit, oil return circuit for use, and corresponding oil pump also can independently be set provides plunger water pump required pressure oil liquid.Function based on first oil cylinder 12 and second oil cylinder 22 needs; Control valve is configured to have two operating positions: in first operating position; Pressure oil circuit P is communicated with the rodless cavity of first oil cylinder 12, the rod chamber of second oil cylinder 22; Oil return circuit T is communicated with the rod chamber of first oil cylinder 12, the rodless cavity of second oil cylinder 22, controls rodless cavity oil-feed, the rod chamber oil return of first oil cylinder 12, the rod chamber oil-feed of second oil cylinder 22, rodless cavity oil return with this; In second operating position; Pressure oil circuit P is communicated with the rod chamber of first oil cylinder 12, the rodless cavity of second oil cylinder 22; Oil return circuit T is communicated with the rodless cavity of first oil cylinder 12, the rod chamber of second oil cylinder 22; Control rodless cavity oil return, the rod chamber oil-feed of first oil cylinder 12, the rod chamber oil return of second oil cylinder 22, rodless cavity oil-feed with this.
Need to prove; The concrete configuration of above-mentioned control valve can be a directional control valve; Also can be configured to the both direction control valve; That is, be specially: be arranged on two chambeies of first oil cylinder 12 and the first hydraulic control direction valve 51 between pressure oil circuit P and the oil return circuit T, and be arranged on two chambeies of second oil cylinder 22 and the second hydraulic control direction valve 52 between pressure oil circuit P and the oil return circuit T.Obviously, be configured to both direction control valve and each oil cylinder relative set, can further be beneficial to the optimization system control performance.
Further, offer the hydraulic fluid port 121 of winning the confidence that is communicated with inner cavity of cylinder on the cylinder barrel of first oil cylinder 12, this distance W between hydraulic fluid port 121 and the rodless cavity end of winning the confidence is greater than the length L of first oil cylinder piston 122; Equally, offer the hydraulic fluid port 221 of winning the confidence that is communicated with inner cavity of cylinder on the cylinder barrel of second oil cylinder 22, this distance between hydraulic fluid port 221 and the rodless cavity end of winning the confidence is greater than the length of second oil cylinder piston 222.That is to say that when piston extend out to stroke terminal, the pressure of the corresponding hydraulic fluid port of winning the confidence was the oil liquid pressure that driven plunger is stretched out, between two operating positions, switch with control both direction valve.Specifically as shown in Figure 5; The hydraulic fluid port 121 of winning the confidence of first oil cylinder 12 is communicated with the right side control port of the first hydraulic control direction valve 51 and the left side control port of the second hydraulic control direction valve 52; To drive the first hydraulic control direction valve 51 and the second hydraulic control direction valve 52 lays respectively at first operating position and second operating position; The hydraulic fluid port of winning the confidence of second oil cylinder 22 is communicated with the left side control port of the first hydraulic control direction valve 51 and the right side control port of the second hydraulic control direction valve 52, to drive the first hydraulic control direction valve 51 and the second hydraulic control direction valve 52 lays respectively at second operating position and first operating position.
This programme also comprises two valves of winning the confidence, and first wins the confidence valve 61 between first oil cylinder 12 and hydraulic control directional control valve, and second wins the confidence valve 62 between second oil cylinder 22 and hydraulic control directional control valve.As shown in the figure, the oil-in A of each valve of winning the confidence is communicated with the hydraulic fluid port of winning the confidence of corresponding oil cylinder, pressure balance hydraulic fluid port B is communicated with the hydraulic fluid port C of the rod chamber of corresponding oil cylinder, oil-out D is communicated with the control port of corresponding hydraulic control direction valve.So be provided with, can further improve the functional reliability of the switching-over of surging; Simultaneously; When oil cylinder piston when stretching out extreme position, the pressure balance hydraulic fluid port B of the valve of winning the confidence is communicated with oil return circuit T, the oil-in A of the valve of winning the confidence is communicated with system pressure oil circuit P; Therefore; The pressure oil liquid of rodless cavity can be through the valve one-way flow of winning the confidence to rod chamber, and then avoids stretching out the terminal and produce and impact, and influences the stability of system works.
Equally, for avoiding oil cylinder regaining the unnecessary rigid shock of extreme position generation.This programme can be provided with the buffering bypass of regaining the unidirectional conducting of direction along piston in the cylinder barrel bottom of two oil cylinders.Specifically as shown in the figure, the oil-out E of buffering bypass is communicated with inner cavity of cylinder through cylinder tube bottom, and the oil-in F that cushions bypass is communicated with inner cavity of cylinder through the cylinder barrel sidewall of the distance between bottom cylinder barrel greater than oil cylinder piston length place.In like manner; When the approaching withdrawal of oil cylinder piston extreme position; The oil-out E of buffering bypass is communicated with oil return circuit T, and the oil-in F of buffering bypass is communicated with pressure oil circuit P, therefore; This moment, the pressure oil liquid of rod chamber can flow to rodless cavity through the check valve in the buffering bypass, avoided regaining the end generation and impacted.
As preceding mentioned, pressure oil circuit P can adopt independently oil pump to be respectively two oil cylinders pressure oil liquid is provided, to adapt to the function needs of plunger water pump preferably.As shown in the figure, through pressure oil route first pump 71 fuel feeding that the first hydraulic control direction valve 51 is communicated with first oil cylinder 12, pressure oil route second pump 72 fuel feeding that the warp second hydraulic control direction valve 52 is communicated with second oil cylinder 22; And, between the liquid outlet of two pumps and oil return circuit, be provided with overflow valve (first overflow valve 81 and second overflow valve 82), be in steady state with two charge oil pressures of reliable maintenance.
Overflow valve (first overflow valve 81 and second overflow valve 82) preferably adopts automatically controlled overflow valve; As shown in the figure; When its control valve not when electric, the inlet of this overflow valve constitutes the draining path via this control valve, i.e. the pressure oil liquid of the liquid outlet of self-pumping output directly is back to fuel tank; When its control valve gets when electric, overflow valve plays level pressure overflow and safeguard protection effect.During actual design, the set pressure of two overflow valves is selected consistent, makes two oil cylinders be in identical working environment, guarantees action switching reliably between the two.
To sum up; Skyscraper according to the invention uses the pump house with double plunger formula high-pressure high-flow water pump, cooperates high pressure resistant fire standpipe, and have advantage than the indoor fire hydrant water supply system of using in the common skyscraper: pressure can reach 8MPa; Can be under the continuous nothing water supply capacity at intermittence of 40L/s; Disposablely send to 500 meters height, and pressure regulator valve is set, the discharge pressure of plunger displacement pump can be regulated in the 0.6MPa-8.0MPa scope continuously; So design in case fire occurs, can combine automatic sprinkler system, together fire is put out.Particularly, can satisfy the demand of high-rise building fire-fighting fire extinguishing reliably.
The above is merely preferred implementation of the present invention, does not constitute the qualification to protection domain of the present invention.Any any modification of within spirit of the present invention and principle, being done, be equal to replacement and improvement etc., all should be included within the claim protection domain of the present invention.
Claims (10)
1. the fixing fire-fighting system of skyscraper; Comprise pump house and the fire standpipe that places in the skyscraper; It is characterized in that, be provided with plunger displacement pump in the said pump house, said plunger displacement pump comprises two plunger groups that are made up of medium cylinder and oil cylinder; The medium cylinder piston of each plunger group and oil cylinder piston synchronous shift, and all is communicated with the outflow check valve that is provided with by export unidirectional conducting outward to the inflow check valve of the unidirectional conducting of inner cavity of cylinder, by inner cavity of cylinder to outer flow with the through-flow mouth of each medium cylinder cylinder barrel; Said inflow check valve is communicated with the water source; Two said oil cylinders are configured under the control of control valve alternately flexible.
2. skyscraper according to claim 1 is fire-fighting system fixedly, it is characterized in that, also comprises water tank, and two said water vats are built in the said water tank.
3. skyscraper according to claim 2 is fire-fighting system fixedly, it is characterized in that, offers the through hole that is communicated with said water tank on the water vat cylinder barrel sidewall of the rod chamber outer end of said water vat.
4. according to the fixing fire-fighting system of claim 2 or 3 described skyscrapers, it is characterized in that said outside delivery port is positioned at and two said ends that go out the outlet pipe that water one-way valve is communicated with.
5. a skyscraper comprises architecture noumenon and fire-fighting system thereof, it is characterized in that, said fire-fighting system is specifically like the fixing fire-fighting system of each described skyscraper in the claim 1 to 4.
6. skyscraper according to claim 5; It is characterized in that; The hydraulic control system that also comprises said plunger displacement pump, this system comprises pressure oil circuit and oil return circuit, said control valve is configured to have two operating positions: in first operating position; The pressure oil circuit is communicated with the rodless cavity of first oil cylinder, the rod chamber of second oil cylinder, and oil return circuit is communicated with the rod chamber of first oil cylinder, the rodless cavity of second oil cylinder; In second operating position, the pressure oil circuit is communicated with the rod chamber of first oil cylinder, the rodless cavity of second oil cylinder, and oil return circuit is communicated with the rodless cavity of first oil cylinder, the rod chamber of second oil cylinder.
7. skyscraper according to claim 6; It is characterized in that; Said control valve is specially: be arranged on two chambeies of first oil cylinder and the first hydraulic control direction valve between pressure oil circuit and the oil return circuit, and be arranged on two chambeies of second oil cylinder and the second hydraulic control direction valve between pressure oil circuit and the oil return circuit;
And two said oil cylinders all offer the hydraulic fluid port of winning the confidence that is communicated with inner cavity of cylinder, said win the confidence hydraulic fluid port and the rodless cavity end between the cylinder barrel sidewall of distance greater than oil cylinder piston length place on; And the hydraulic fluid port of winning the confidence of said first oil cylinder is communicated with the control port of the said first hydraulic control direction valve and the second hydraulic control direction valve; To drive the first hydraulic control direction valve and the second hydraulic control direction valve lays respectively at first operating position and second operating position; The hydraulic fluid port of winning the confidence of said second oil cylinder is communicated with the control port of the said first hydraulic control direction valve and the second hydraulic control direction valve, to drive the first hydraulic control direction valve and the second hydraulic control direction valve lays respectively at second operating position and first operating position.
8. skyscraper according to claim 7; It is characterized in that; Also comprise two valves of winning the confidence that are separately positioned between two oil cylinders and the corresponding hydraulic control direction valve, the oil-in of each valve of winning the confidence is communicated with the hydraulic fluid port of winning the confidence of corresponding oil cylinder, the pressure balance hydraulic fluid port is communicated with the hydraulic fluid port of the rod chamber of corresponding oil cylinder, oil-out is communicated with the control port of corresponding hydraulic control direction valve.
9. skyscraper according to claim 8; It is characterized in that; The cylinder barrel bottom of two said oil cylinders is provided with the buffering bypass of regaining the unidirectional conducting of direction along piston; The oil-out of said buffering bypass is communicated with inner cavity of cylinder through cylinder tube bottom, and the oil-in of said buffering bypass is communicated with inner cavity of cylinder through the cylinder barrel sidewall of the distance between bottom cylinder barrel greater than oil cylinder piston length place.
10. skyscraper according to claim 9 is characterized in that, pressure oil route first oil pump feed that is communicated with first oil cylinder through the said first hydraulic control direction valve, pressure oil route second oil pump feed that is communicated with second oil cylinder through the said second hydraulic control direction valve; And, between the liquid outlet of two pumps and oil return circuit, be provided with overflow valve.
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|---|---|---|---|
| CN2011102731883A CN102423526B (en) | 2011-09-14 | 2011-09-14 | High rise building and fixed fire fighting system thereof |
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| CN2011102731883A CN102423526B (en) | 2011-09-14 | 2011-09-14 | High rise building and fixed fire fighting system thereof |
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| CN102423526A true CN102423526A (en) | 2012-04-25 |
| CN102423526B CN102423526B (en) | 2013-11-13 |
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Also Published As
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| CN102423526B (en) | 2013-11-13 |
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Effective date of registration: 20170210 Address after: 221004 Jiangsu Province, Xuzhou City Yunlong District No. 165 Patentee after: Xugong fire safety equipment Co. Ltd. Address before: 221004 Xuzhou, Zhejiang Province, Jiangsu Road No. 165 Patentee before: Xuzhou Heavy Machinery Co., Ltd. |
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