CN1221058A - Living and fire-fighting voltage-stablization, frequency-conversion constant-pressure variable water supply equipment - Google Patents
Living and fire-fighting voltage-stablization, frequency-conversion constant-pressure variable water supply equipment Download PDFInfo
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- CN1221058A CN1221058A CN 98126204 CN98126204A CN1221058A CN 1221058 A CN1221058 A CN 1221058A CN 98126204 CN98126204 CN 98126204 CN 98126204 A CN98126204 A CN 98126204A CN 1221058 A CN1221058 A CN 1221058A
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- fire
- pump
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- life
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
A water supply apparatus common to life and fire-fighting applications is composed of fire-fighting pump, life pump, pressure-stabilizing tank, pressure gauge, check valve, gate valve, flow controller, flow indicator and electric control cabinet. The frequency-variable machine set is installed tothe life pump, but not to fire-fighting pump, so the life pump works with variable frequency under the control of electric control cabinet and is also used as both pressure-stabilizing pump for fine fighting and the boosting pump for roof. A saft valve is installed to life trunk to drain the pressure-released water back to water storage. Its advantages are less investment and high reliability and convenience.
Description
The present invention relates to a kind of frequency conversion water supply facilities, relate in particular to the frequency conversion water supply facilities that a kind of fire demand and living is held concurrently the fire-fighting voltage stabilizing.
Fire-fighting at present and the shared water supply facilities of life also have the frequency control of being designed to, and improve greatly but make to control cost, especially when the fire-fighting flow is big, its cost is particularly high, in fact, during breaking out of fire, fire pump should wholeheartedly be worked, and is need not frequency control energy-conservation to pursue.Moreover, all be furnished with special-purpose fire-fighting stabilized pressure pump in the existing frequency conversion water supply facilities, also need often touringly detect the startup stabilized pressure pump at ordinary times, with the hydraulic pressure in the assurance fire protection pipeline, the one, strengthen cost, the 2nd, increase maintenance workload.And fire-fighting and the shared water pump of life in the present equipment, in case breaking out of fire, need be closed the inlet valve of life pipe at once automatically, during fire, influence living water use.
The objective of the invention is to: a kind of frequency conversion water supply facilities that overcomes the prior art defective is provided.
Purpose of the present invention is achieved through the following technical solutions: fire-fighting main pump is not before established the frequency conversion unit, anti-life pump is designed to the frequency conversion unit, and be respectively equipped with vacuum tank, by electrical control cubicles control supplementary pressure, life pump vacuum tank is provided with teletransmission pressure meter and electro connecting pressure gauge, the one outlet is joined with the fire main pipe, the joint is provided with flap valve and gate valve, water for fire flows backward to life pipe network when preventing that fire pump from starting, another outlet is life main, life main is provided with flap valve and hydro electric magnet valve or motor operated valve, also is provided with safety pressure-limiting valve, and the pressure release return duct is to reservoir.The fire pump vacuum tank is provided with electro connecting pressure gauge, and last device one liquid flowing controller of fire main pipe starts main pump to accept the fire-fighting flow signal.Fire chief is divided automatic sprinkler system and hydrant water supply system main before the automatic water jetting alarm valve, be respectively equipped with automatic water jetting shower nozzle and hydrant, and the place is provided with water flow indicator at the automatic water jetting shower nozzle.
The present invention adopts life pump frequency conversion to supply water, and unit is according to speed governing work of variation automatic frequency-conversion or power frequency work with discharge.Because of life hydraulic pressure often is lower than fire fighting hydraulic pressure, unit satisfies life unsteady flow amount constant pressure water-supply at ordinary times.If the wet type fire protection pipeline is because of reason step-downs such as leakages, by the operation of electrical control cubicles computer instruction life pump frequency conversion unit speedup, the timely ftercompction of fire protection pipeline.Life pump with regard to double as fire-fighting wet type stabilized pressure pump and roofing augment press pump, keep the fire protection pipeline system and be in pressurize guard state at any time, attic tank and roofing supplementary pressure system have been substituted, not only reduced equipment investment, capital investment and day-to-day operation take, but also have improved fire-fighting, the reliability of domestic water, convenience.Product of the present invention in case run into fire, can start immediately or in two minutes, and initial stage life pump still works on, and can satisfy 1～2 hydrant.The fire-fighting main pump directly starts at certain power (as below 11 kilowatts); Surpass certain value, adopt step-down or soft start, only life pump is done frequency conversion adjustment work at ordinary times, and only when fire alarm took place, just startup work greatly reduced cost of equipment and investment cost for energy-saving and water-saving, high-power fire-fighting main pump.
Accompanying drawing: be principle of the invention figure.
Contrasting accompanying drawing below in conjunction with embodiment is elaborated to the end invention.
The present invention is by fire-fighting main pump 1, life pump 2, vacuum tank 5,17, electro connecting pressure gauge 4,16, teletransmission pressure meter 3, flap valve 12,20, gate valve 19, water flow indicator 8, and liquid flowing controller 15 and electrical control cubicles 18 are formed.Fire-fighting main pump 1 is not established the frequency conversion unit, and life pump 2 is provided with the frequency conversion unit, and both are respectively equipped with vacuum tank 5,17.Life pump vacuum tank 5 is provided with teletransmission pressure meter 3, electro connecting pressure gauge 4, the one outlet is joined with the fire main pipe, the joint is provided with flap valve 20 and gate valve 19 water for fire when preventing that fire pump from starting and flows backward to life pipe network, another outlet is life main, life main is provided with flap valve 12 and waterpower electromagnetism (moving) valve 13, before its inlet one safety pressure-limiting valve 14 is housed, pressure release water drains back to reservoir through pipeline 6.Fire pump vacuum tank 17 is provided with electro connecting pressure gauge 16, last device one liquid flowing controller 15 of fire main pipe, fire chief is divided automatic water sprinkler systme and hydrant water supply system main before the automatic water jetting alarm valve, be respectively equipped with automatic water jetting shower nozzle 7 and hydrant 9,10, hydrant 9 is used for test, inspection.Be provided with water flow indicator 8 before the automatic water jetting shower nozzle 7.
Claims (2)
1. a fire demand and living dual-purpose fire-fighting stable voltage frequency conversion constant-pressure variable water supply facilities is made up of fire pump (1), life pump (2), vacuum tank (5,17), electro connecting pressure gauge (4,16), teletransmission pressure meter (3), flap valve (12,20), gate valve (19), water flow indicator (8), liquid flowing controller (15) and electrical control cubicles (18); Fire-fighting main pump (11) is not established the frequency conversion unit, and life pump (2) is provided with the frequency conversion unit.
2, fire demand and living dual-purpose fire-fighting stable voltage frequency conversion constant-pressure variable water supply facilities according to claim 1, it is characterized in that: be provided with safety pressure-limiting valve (14), pressure release water drains back to reservoir through pipeline (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98126204 CN1080357C (en) | 1998-12-23 | 1998-12-23 | Living and fire-fighting voltage-stablization, frequency-conversion constant-pressure variable water supply equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98126204 CN1080357C (en) | 1998-12-23 | 1998-12-23 | Living and fire-fighting voltage-stablization, frequency-conversion constant-pressure variable water supply equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1221058A true CN1221058A (en) | 1999-06-30 |
| CN1080357C CN1080357C (en) | 2002-03-06 |
Family
ID=5229536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98126204 Expired - Fee Related CN1080357C (en) | 1998-12-23 | 1998-12-23 | Living and fire-fighting voltage-stablization, frequency-conversion constant-pressure variable water supply equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1080357C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182229A (en) * | 2011-03-29 | 2011-09-14 | 澧县三利供水设备制造有限公司 | Special automatic water supply system for high-rise building with pneumatic control and frequency conversion |
| CN110721426A (en) * | 2019-10-23 | 2020-01-24 | 中国舰船研究设计中心 | Marine constant-pressure fire extinguishing system |
-
1998
- 1998-12-23 CN CN 98126204 patent/CN1080357C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182229A (en) * | 2011-03-29 | 2011-09-14 | 澧县三利供水设备制造有限公司 | Special automatic water supply system for high-rise building with pneumatic control and frequency conversion |
| CN110721426A (en) * | 2019-10-23 | 2020-01-24 | 中国舰船研究设计中心 | Marine constant-pressure fire extinguishing system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1080357C (en) | 2002-03-06 |
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| 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 |