CN2226954Y - Pneumatic water supply device special for fire fighting - Google Patents
Pneumatic water supply device special for fire fighting Download PDFInfo
- Publication number
- CN2226954Y CN2226954Y CN95220814U CN95220814U CN2226954Y CN 2226954 Y CN2226954 Y CN 2226954Y CN 95220814 U CN95220814 U CN 95220814U CN 95220814 U CN95220814 U CN 95220814U CN 2226954 Y CN2226954 Y CN 2226954Y
- Authority
- CN
- China
- Prior art keywords
- water
- valve
- air
- air pressure
- pressure tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a pressurized-type water supply device special for fire fighting, which comprises a fire pump, an air pressure tank and an air pressure tank pipeline which is provided with a stabilized pressure pump and an air supply tank, wherein, the air pressure tank pipeline is connected with the position between a water source and a water outlet E, and a one-way air valve with a filter screen is arranged on the air supply tank. The upper end of the air pressure tank is provided with a barometer and an air discharge electromagnetic valve, the lower end is provided with a water discharge electromagnetic valve, and the side surface is provided with a floating ball water level controller. An electrical apparatus control cabinet which is provided with a programmable controller is controllably and electrically connected to the manometer, the air discharge electromagnetic valve, the floating ball water level controller, the water discharge electromagnetic valve and an electrically operated valve on the air pressure tank, and is also controllably and electrically connected to the manometer and a water flow indicator at the downstream position of the water outlet E.
Description
The utility model relates to waterworks, and particularly water-supplying device for fire extinguishment relates in particular to the pressurized-type water supply unit of the fire-fighting special use that can keep air pressure tank internal gas pressure and water level automatically.
The waterworks that have general fire-fighting special use now are fire demand water to be pumped in the elevated tank with water pump use for fire-fighting lance, and elevated tank generally all is arranged on top of high-rise buildings, utilizes the water-head between the elevated tank water surface and the hydraulic giant to spray fire demand water.Yet, fire-fighting lance must have the pressure of 22 meter water columns and 13 meters water column length at least in accordance with regulations, still, and when the high level place of building catches fire, therefore water-head between the fire-fighting lance and the elevated tank water surface will make hydraulic giant not reach the hydraulic pressure of requirement, can only " fire-fighting of reducing pressure ".This obviously is disadvantageous.Have air pressure tank in the another kind of water-supplying device for fire extinguishment, have a certain amount of prestoring water in this air pressure tank, thereby and jar interior gas is compressed make the interior prestoring water of jar have certain pressure.Be unlocked the water supply initial stage at fire hydrant, the water supply rifle under the effect of jar internal pressure of the water in the air pressure tank sprays.Then and then just with the water water supply rifle use of the direct pumping of fire pump.But, because the interval of water-supplying device for fire extinguishment utilization and operation is very long, parking for a long time under the no situation, air and/or prestoring water in the air pressure tank all may be missed, and a jar interior air also may be dissolved in the prestoring water, therefore can cause the water yield and/or pressure in the air pressure tank all to descend, this just makes fire-fighting lance at the beginning of opening, its pressure of fire water and the quantity that are provided by air pressure tank are all not enough, in addition, because fire pump is about 10 seconds start-up time, the time that starts back arrival normal water supply needs 10 seconds again, if consider the startup and the water supply of auxiliary fire pump again, be about about 30 seconds the perdurabgility that relies on fire pump to supply water so, this just forms " time-delay fire-fighting " this " time-delay fire-fighting " and can not in time stamp out a fire, and the consequence that causes is hardly imaginable.
Therefore, the purpose of this utility model is exactly will overcome the shortcoming of " decompression fire-fighting " and " time-delay fire-fighting " in the existing water-supplying device for fire extinguishment and propose a kind of fire-fighting special use pressurized-type water supply unit, this device can make fire fighting supply that the quench water of predetermined enough pressure is provided at the very start, and supplies with the quench water that requires pressure continuously thereupon.In addition, the device feedwater is reliable, needn't often overhaul.
For achieving the above object, the special-purpose pressurized-type water supply unit of the fire-fighting that the utility model proposes comprises the water source, the fire pump of some groups of parallel connections, and air pressure tank is characterized in that, described pressurized-type water supply unit also comprises:
The air pressure tank pipeline, this air pressure tank pipeline is in series by valve, stabilized pressure pump, check valve, air supply tank, non-return air valve, air pressure tank, valve, described air pressure tank pipeline is connected between water source and the delivery port E, the Non-return air valve that has the band filter screen on the wherein said air supply tank, described air pressure tank upper end has air gauge and exhaust solenoid valve and drain solenoid valve is equipped with in its lower end, and the ball float water level controller is housed in this air pressure tank side;
Fractions is not connected in parallel by the fire pump group that valve, fire pump, check valve are in series, and behind the motor-driven valve in parallel again and be connected between water source and the outlet E, and between the fire pump of parallel connection and delivery port E series connection one check-valves;
Between delivery port E and fire hydrant, have safety valve, Pressure gauge, water flow indicator;
The electric control cabinet of programmable controller (PC) and the Pressure gauge on the air pressure tank, exhaust solenoid valve, ball float water level controller are housed, drain solenoid valve controllably is electrically connected, and and motor-driven valve, Pressure gauge, water flow indicator between delivery port E and the fire hydrant controllably are electrically connected.
The special-purpose pressurized-type water supply unit of the fire-fighting that the utility model proposes, owing to prestore the water of certain pressure in the air pressure tank wherein, in case fire hydrant is opened, the quench water water supply rifle that can supply with enough pressure in the air pressure tank immediately uses, the fire pump of Qi Donging will continue to supply water thereupon, so eliminated the problem of " the decompression fire-fighting " and " time-delay fire-fighting " that had in the existing water-supplying device for fire extinguishment.And if do not operate for a long time and gas and/or water air pressure tank in missed, when causing the interior pressure of air pressure tank and the water yield to reduce, then can control air pressure tank interior pressure and water level, make in the fire main " normal high pressure " state that remains by means of the control of programmable controller (PC).If seepage gas or percolating water, then the pressure in the air pressure tank can descend, when pressure drops to PS1, stabilized pressure pump starts, water is passed through air supply tank, pump in the air pressure tank together with the gas in the air supply tank, at this moment stop stabilized pressure pump pump water, water in the air supply tank can be dirty because of gravity, the Non-return air valve of air supply tank upper end is opened, and air is full of air supply tank again, at this moment opens the drain solenoid valve of air pressure tank lower end again, water in the air pressure tank is discharged, and then the startup stabilized pressure pump, the gas in water and the air supply tank is pumped in the air pressure tank again, the pressure in air pressure tank and the water yield reach till the regulation so repeatedly, this has just exempted running check, and can guarantee that water initially provides the water of enough pressure immediately.
At ordinary times, when predetermined in the period interval, fire pump is started automatically and open motor-driven valve, form and patrol and examine backflow to check whether fire pump is normal, to patrol and examine that finishing the back motor-driven valve closes automatically.
Embodiment to the special-purpose pressurized-type water supply unit of fire-fighting of the present utility model is further described below in conjunction with accompanying drawing.
Fig. 1 is the rough package drawing of the special-purpose pressurized-type water supply unit embodiment of the fire-fighting that the utility model proposes.
Ask for an interview Fig. 1, water source 20 shown in the left side can be the feed pipe of running water pipe among the figure, and the fire hydrant 12 on right side can be connected with fire nozzle among the figure, and this place requires to provide immediately the quench water of enough pressure during use.
Safety valve 5 and Pressure gauge 11 are housed on the pipeline between delivery port E and the fire hydrant 12, and water flow indicator 6 is with the data of the quench water of indication and supervision supply.
Between water source 20 and delivery port E, be connected with the air pressure tank pipeline, this air pressure tank pipeline is by valve 17, stabilized pressure pump 1, valve 17, air supply tank 3, non-return air valve 15, air pressure tank 14, valve 22 is in series, the Non-return air valve 16 of band filter screen is housed on the air supply tank 3, this Non-return air valve only allows outside air to enter in the air supply tank 3, and Pressure gauge 13 is equipped with in air pressure tank 14 upper ends, with the pressure in the supervision air pressure tank 14, exhaust solenoid valve 9 also is equipped with in air pressure tank 14 upper ends, drain solenoid valve 10 then is equipped with in its lower end, so that be used for discharging the part G﹠W of the requirement in the air pressure tank 14 respectively, to regulate the amount of G﹠W.Ball float water level controller 8 then is equipped with in the air pressure tank side, to be used for supervising the horizontal plane in the air pressure tank 14.
Two groups of parallel connections respectively by valve 18, be connected between delivery port E and the water source 20 after the Fire Fighting Pumps that fire pump 2, check valve 19 are connected into and a motor-driven valve 4 are in parallel, and check-valves 21 also is housed between Fire Fighting Pumps and delivery port E, in case fire pump the backflowing of water when stopping.
Programmable controller (PC) is housed in the electrical control cubicles 7, store the special control program of compiling in this programmable controller (PC), described Pressure gauge 13, exhaust solenoid valve 9, ball float water level controller 8, drain solenoid valve 10 and Pressure gauge 11, water flow indicator 6, motor-driven valve 4 all controllably are electrically connected with programmable controller (PC).
In air pressure tank 14, there is a certain amount of initial water at ordinary times, by Pressure gauge 13, magnetic valve 9,10, ball float water level controller 8 and stabilized pressure pump 1, air supply tank 3 is also being controlled water level and pressure in the air pressure tank 14 by means of the control of programmable controller (PC).Pressure in the air pressure tank 14 changes between PS1 and PS2 generally speaking, and PS2 is the blowing pressure of giving that requires.If descend because of seepage gas and/or water make air pressure tank 14 internal pressures, then stabilized pressure pump 1 starts and to air pressure tank 14 internal pump waters, and the Non-return air valve 16 on this moment air supply tank 3 is closed, and the air in the air supply tank 3 also are admitted in the air pressure tank 14.Water in pumping into air pressure tank 14 is increased to going up in limited time of water level (SW), and stabilized pressure pump 1 stops pump water, and the water in the air supply tank 3 flows out air supply tank 3 downwards because of gravity, and Non-return air valve 16 is opened, and air is inhaled into again and is full of air supply tank 3.If at this moment the pressure in the air pressure tank 14 is still less than PS2, then drain solenoid valve 10 is opened the water section in the air pressure tank 14 is discharged, when dropping to the following of water level (SW), water level prescribes a time limit, restart stabilized pressure pump 1, again the gas in water and the air supply tank 3 is sent in the air pressure tank 14 together and risen to higher limit again up to water level (SW), pressure in air pressure tank 14, water level arrive till the required value so repeatedly, so just automatically keep pressure and water level in the air pressure tank 14 all the time automatically, guarantee to supply with immediately when fire demand water is initial the water yield of enough pressure.If when in fire extinguishing and with quench water, the press water in the beginning air pressure tank 14 uses because of supplying with hydraulic giant, and makes the horizontal plane in the air pressure tank 14 can continue to descend, and pressure also can continue to descend.When pressure drops to P2, make then that fire pump 2 starts, fire pump 2 move fully when pressure drops to P1 again, guaranteed water supply continuously.
Claims (1)
1, the special-purpose pressurized-type water supply unit of a kind of fire-fighting comprises the water source, the fire pump of some groups of parallel connections, and air pressure tank is characterized in that, described pressurized-type water supply unit also comprises:
The air pressure tank pipeline, this air pressure tank pipeline is in series by valve, stabilized pressure pump, check valve, air supply tank, non-return air valve, air pressure tank, valve, described air pressure tank pipeline is connected between water source and the delivery port E, the Non-return air valve that has the band filter screen on the wherein said air supply tank, described air pressure tank upper end has air gauge and exhaust solenoid valve and drain solenoid valve is equipped with in its lower end, and the ball float water level controller is housed in this air pressure tank side;
Fractions is not connected in parallel by the fire pump group that valve, fire pump, check valve are in series, and behind the motor-driven valve in parallel again and be connected between water source and the outlet E, and between the fire pump of parallel connection and delivery port E series connection one check-valves;
Between delivery port E and fire hydrant, have safety valve, Pressure gauge, water flow indicator;
The electric control cabinet of programmable controller and the Pressure gauge on the air pressure tank, exhaust solenoid valve, ball float water level controller are housed, drain solenoid valve controllably is electrically connected, and and motor-driven valve, Pressure gauge, water flow indicator between delivery port E and the fire hydrant controllably are electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95220814U CN2226954Y (en) | 1995-09-01 | 1995-09-01 | Pneumatic water supply device special for fire fighting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95220814U CN2226954Y (en) | 1995-09-01 | 1995-09-01 | Pneumatic water supply device special for fire fighting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2226954Y true CN2226954Y (en) | 1996-05-15 |
Family
ID=33868611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95220814U Expired - Fee Related CN2226954Y (en) | 1995-09-01 | 1995-09-01 | Pneumatic water supply device special for fire fighting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2226954Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102077754A (en) * | 2009-11-27 | 2011-06-01 | 上海高榕食品有限公司 | Water mycelium stimulation pressure-stabilizing water supplying system |
| CN102454185A (en) * | 2010-10-17 | 2012-05-16 | 青岛三利中德美水设备有限公司 | Automatic air supply device for air pressure water supply tank |
| CN113047377A (en) * | 2021-02-26 | 2021-06-29 | 钟星建设集团有限公司 | Intelligent monitoring voltage-stabilizing fire-fighting water supply pump |
-
1995
- 1995-09-01 CN CN95220814U patent/CN2226954Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102077754A (en) * | 2009-11-27 | 2011-06-01 | 上海高榕食品有限公司 | Water mycelium stimulation pressure-stabilizing water supplying system |
| CN102454185A (en) * | 2010-10-17 | 2012-05-16 | 青岛三利中德美水设备有限公司 | Automatic air supply device for air pressure water supply tank |
| CN113047377A (en) * | 2021-02-26 | 2021-06-29 | 钟星建设集团有限公司 | Intelligent monitoring voltage-stabilizing fire-fighting water supply pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |