CN201049166Y - Non-negative pressure fire-fighting special purpose water-feeding equipment - Google Patents

Non-negative pressure fire-fighting special purpose water-feeding equipment Download PDF

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Publication number
CN201049166Y
CN201049166Y CNU2007200388135U CN200720038813U CN201049166Y CN 201049166 Y CN201049166 Y CN 201049166Y CN U2007200388135 U CNU2007200388135 U CN U2007200388135U CN 200720038813 U CN200720038813 U CN 200720038813U CN 201049166 Y CN201049166 Y CN 201049166Y
Authority
CN
China
Prior art keywords
fire
negative pressure
pressure
water
supply pump
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
Application number
CNU2007200388135U
Other languages
Chinese (zh)
Inventor
王道光
但孝东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NANCHANG GANJIANG WATER INDUSTRY TECHNOLOGY Co Ltd
Original Assignee
NANCHANG GANJIANG WATER INDUSTRY TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NANCHANG GANJIANG WATER INDUSTRY TECHNOLOGY Co Ltd filed Critical NANCHANG GANJIANG WATER INDUSTRY TECHNOLOGY Co Ltd
Priority to CNU2007200388135U priority Critical patent/CN201049166Y/en
Application granted granted Critical
Publication of CN201049166Y publication Critical patent/CN201049166Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a non-negative pressure fire-fighting water supply equipment, comprising an admitting pipe, a non-negative pressure steady flow regulating vessel, a steady pressure water supply pump unit and a fire-fighting water supply pump unit, wherein the non-negative pressure steady flow regulating vessel is provided with a negative pressure eliminator, an electromagnetic valve, a pressure gauge with electric contact and a pressure gauge; the outlets of the steady pressure water supply pump unit and the fire-fighting water supply pump unit are connected with a fire-fighting water supply main pipe which is provided with a membrane type pressure tank, a fluid flow controller, a backward flow preventer, a water outlet king valve, a polling return pipe and a safety pressure relief pipe; the utility model is characterized in that the intakes of the steady pressure water supply pump unit and the fire-fighting water supply pump unit are both directly connected with the non-negative pressure steady flow regulating vessel. The non-negative pressure fire-fighting water supply equipment of the utility model has the advantages of compact structure, convenient and quick assembly, low manufacturing cost and no secondary pollution, and does not need to build the fire-fighting pool and the elevated water tank and can guarantee the water quality of the tapping pipe network.

Description

The special-purpose water work of no negative pressure fire-fighting
Technical field
The utility model relates to a kind of fire water supply equipment, relates in particular to a kind of can directly the water intaking in the special-purpose water work of the no negative pressure fire-fighting of city planting ductwork.
Background technology
Present fire water supply equipment generally all is to be made of fire cistern, fire-fighting main pump, voltage-stabilizing system.Continuous quickening along with urbanization process, the continuous extension of public supply mains, the development of water supply industry and automatic control system are constantly perfect, a lot of local municipal water supply pipe network terminal pressures have reached or have surpassed 0.2MPa, and all be arranged to ring-type, from the city planting ductwork water intaking, the cancellation fire cistern has been created advantage for directly.General fire consumption is all less than domestic water, and according to China's water supply present situation, on the basis of non-negative-pressure life water work, it is fully feasible that the employing with good conditionsi of the special-purpose water work of no negative pressure fire-fighting is directly fetched water in the municipal water supply pipe network.
Summary of the invention
The purpose of this utility model just provides a kind of overbottom pressure of utilizing city planting ductwork, need not to be provided with fire cistern, and production cost is low, and non-secondary pollution can directly be fetched water in the special-purpose water work of the no negative pressure fire-fighting of city planting ductwork.
The special-purpose water work of no negative pressure fire-fighting of the present utility model, comprise water inlet pipe, non-negative pressure stabilized regulating tank, the pressure-stabilizing water supply pump assembly, the fire fighting supply pump assembly, the negative pressure arrester is housed on the non-negative pressure stabilized regulating tank, magnetic valve, electro connecting pressure gauge and Pressure gauge, the outlet of pressure-stabilizing water supply pump assembly and fire fighting supply pump assembly links to each other with the fire water-supply house steward, the diaphragm type air pressure tank is housed on the fire water-supply house steward, liquid flowing controller, backflow preventer, the water outlet main valve, patrol and examine return pipe and safety relief pipe, patrol and examine return pipe one termination and go into non-negative pressure stabilized regulating tank, the other end links to each other with the fire water-supply house steward, the two ends of safety relief pipe meet non-negative pressure stabilized regulating tank and fire water-supply house steward respectively, are characterized in that the water sucking mouth of pressure-stabilizing water supply pump assembly and fire fighting supply pump assembly all directly is connected on the non-negative pressure stabilized regulating tank.
The special-purpose water work of no negative pressure fire-fighting of the present utility model compared with prior art has the following advantages:
1, need not build fire cistern, elevated tank, reduced investment, instant effect, reduce investment outlay more than 50%;
2, guarantee the water quality of running water pipe network, non-secondary pollution, the expense of saved sterilization, cleaning the pond;
3, compact equipment, it is convenient to install;
4, fire supply system independent operating, fire supply system starts automatically during fire-fighting.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
The special-purpose water work of a kind of no negative pressure fire-fighting, comprise water inlet pipe 1, non-negative pressure stabilized regulating tank 2, pressure-stabilizing water supply pump assembly 12, fire fighting supply pump assembly 13, on the non-negative pressure stabilized regulating tank 2 inspection manhole 3 is housed, negative pressure arrester 4, magnetic valve 5, electro connecting pressure gauge 6 and Pressure gauge 7, the outlet of pressure-stabilizing water supply pump assembly 12 and fire fighting supply pump assembly 13 links to each other with fire water-supply house steward 14, diaphragm type air pressure tank 18 is housed on the fire water-supply house steward 14, liquid flowing controller 15, backflow preventer 16, water outlet main valve 17, patrol and examine return pipe 10 and safety relief pipe 11, patrol and examine return pipe 10 1 terminations and go into non-negative pressure stabilized regulating tank 2, the other end links to each other with fire water-supply house steward 14, the two ends of safety relief pipe 11 connect non-negative pressure stabilized regulating tank 2 and total 14 pipes of fire water-supply respectively, are characterized in that the water sucking mouth 8 of pressure-stabilizing water supply pump assembly 12 and the water sucking mouth 9 of fire fighting supply pump assembly 13 all directly are connected on the non-negative pressure stabilized regulating tank 2.
Its operation principle is: the water of city planting ductwork enters non-negative pressure stabilized regulating tank 2 through equipment water inlet 1, passes through non-negative pressure stabilized regulating tank 2 again, enters pressure-stabilizing water supply pump assembly 12 and fire fighting supply pump assembly 13 supply fire_fighting pipe networks by water sucking mouth 8,9.Pressure-stabilizing water supply pump assembly 12 starts at ordinary times, keep the fire fighting hydraulic pressure of the worst point of fire_fighting pipe network system by barrier film air pressure tank 18, when the fire_fighting pipe network system pressure owing to leak or other factor pressure when dropping to the stabilized pressure pump starting pressure, start stabilized pressure pump by electro connecting pressure gauge control and keep ductwork pressure, when ductwork pressure satisfies least favorable point fire fighting hydraulic pressure, automatically the control stabilized pressure pump quits work, and barrier film air pressure tank 18 is kept the fire_fighting pipe network ductwork pressure and the fire-fighting flow at 30 seconds fire initial stages at ordinary times.When breaking out of fire, liquid flowing controller 15 actions, fire supply system drops into fire extinguishing automatically, patrols and examines return pipe 10 at fire fighting supply pump assembly 13 startup moment cooperation negative pressure arrester 4 and magnetic valves 5, eliminates the issuable local decompression of moment changes in flow rate.

Claims (1)

1. special-purpose water work of no negative pressure fire-fighting, comprise water inlet pipe (1), non-negative pressure stabilized regulating tank (2), pressure-stabilizing water supply pump assembly (12), fire fighting supply pump assembly (13), inspection manhole (3) is housed on the non-negative pressure stabilized regulating tank (2), negative pressure arrester (4), magnetic valve (5), electro connecting pressure gauge (6) and Pressure gauge (7), the outlet of pressure-stabilizing water supply pump assembly (12) and fire fighting supply pump assembly (13) links to each other with fire water-supply house steward (14), diaphragm type air pressure tank (18) is housed on the fire water-supply house steward (14), liquid flowing controller (15), backflow preventer (16), water outlet main valve (17), patrol and examine return pipe (10) and safety relief pipe (11), patrol and examine return pipe (10) one terminations and go into non-negative pressure stabilized regulating tank (2), the other end links to each other with fire water-supply house steward (14), the two ends of safety relief pipe (11) connect non-negative pressure stabilized regulating tank (2) and fire water-supply total (14) pipe respectively, and it is characterized in that: the water sucking mouth (8) of pressure-stabilizing water supply pump assembly (12) and the water sucking mouth (9) of fire fighting supply pump assembly (13) all directly are connected on the non-negative pressure stabilized regulating tank (2).
CNU2007200388135U 2007-06-22 2007-06-22 Non-negative pressure fire-fighting special purpose water-feeding equipment Expired - Fee Related CN201049166Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007200388135U CN201049166Y (en) 2007-06-22 2007-06-22 Non-negative pressure fire-fighting special purpose water-feeding equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007200388135U CN201049166Y (en) 2007-06-22 2007-06-22 Non-negative pressure fire-fighting special purpose water-feeding equipment

Publications (1)

Publication Number Publication Date
CN201049166Y true CN201049166Y (en) 2008-04-23

Family

ID=39335647

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2007200388135U Expired - Fee Related CN201049166Y (en) 2007-06-22 2007-06-22 Non-negative pressure fire-fighting special purpose water-feeding equipment

Country Status (1)

Country Link
CN (1) CN201049166Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102200221A (en) * 2011-05-13 2011-09-28 云南大红山管道有限公司 Pipeline decompression and liquid drainage device and mounting method thereof
CN103276767A (en) * 2013-05-30 2013-09-04 江苏华达给水设备有限公司 Integrated type pump-controlled fire water supply device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102200221A (en) * 2011-05-13 2011-09-28 云南大红山管道有限公司 Pipeline decompression and liquid drainage device and mounting method thereof
CN103276767A (en) * 2013-05-30 2013-09-04 江苏华达给水设备有限公司 Integrated type pump-controlled fire water supply device

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080423

Termination date: 20110622

C17 Cessation of patent right