CN104524717A - Foam fire-extinguishing device with internal screw type air compressor - Google Patents
Foam fire-extinguishing device with internal screw type air compressor Download PDFInfo
- Publication number
- CN104524717A CN104524717A CN201410818128.9A CN201410818128A CN104524717A CN 104524717 A CN104524717 A CN 104524717A CN 201410818128 A CN201410818128 A CN 201410818128A CN 104524717 A CN104524717 A CN 104524717A
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- China
- Prior art keywords
- air compressor
- screw
- foam
- built
- rod air
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Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C5/00—Making of fire-extinguishing materials immediately before use
- A62C5/02—Making of fire-extinguishing materials immediately before use of foam
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
- A62C31/12—Nozzles specially adapted for fire-extinguishing for delivering foam or atomised foam
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/08—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the rotational speed
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a foam fire-extinguishing device with an internal screw type air compressor, belonging to the field of the foam fire extinguisher. The foam fire-extinguishing device has the advantages that by adoption of the screw type air compressor, a pressure transmitter is utilized for measuring a pipe-net pressure value of a gas storage tank outlet and transmitting the pipe-net pressure value to an adjusting controller, and then the pipe-net pressure value is compared with a set pressure value, so that a frequency converter is controlled to adjust the rotating speed of a motor, then the screw type air compressor outputs stable compressed air, further stable foams are generated, and the problem that the fire-extinguishing efficiency is low due to non-constant-speed and unstable foams sprayed by the foam fire-extinguishing device in the prior art is overcome; and the problem that the maintenance cost is increased due to adoption of a piston type air compressor and easy damage of parts of the foam fire-extinguishing device in the prior art is also overcome, so that not only is the fire-extinguishing efficiency improved, but also the maintenance cost of the foam fire-extinguishing device is reduced.
Description
Technical field
The present invention relates to a kind of fixed froth installation, particularly relate to a kind of fixed froth installation of built-in screw-rod air compressor.
Background technology
Object burning will have three factors to be formed, that is: the oxygen of comburant, suitable temperature and appropriateness.So, to stamp out a fire, just needing impact or solving wherein a kind of factor.For a long time, because the water capacity is easily extracted, low price, the feature such as corrosion-free, pollution, uses as main extinguishing chemical always.The mechanism of above-water method is: cooling.But because the just surface tension of water is large, penetrability is poor, can not be attached to vertical surface, and during actual use, only have the water of about 15% to play cooling-down effect, most of water is all lost, and therefore, the fire-fighting efficiency of water is very low.
In prior art, in order to head it off, usual compressed air foam fire-extinguishing apparatus, piston type air compressor is adopted to compress air in this fixed froth installation, then mix with mixed liquor, spray foam by hydraulic giant under the effect of the pressure, thus reach the object of fire extinguishing.
But, in compressed air foam fire-extinguishing apparatus in the prior art, due to employing is piston type air compressor, thus make spray foam uneven, cause cannot be stable carry out fire-extinguishing operations, reduce the fire-fighting efficiency of fireman, and owing to adopting piston type air compressor, its parts easily damage, thus cause this compressed air foam fire-extinguishing apparatus maintenance rate high, and then add the maintenance cost of fire-fighting equipment.
Summary of the invention
For above-mentioned Problems existing, the invention provides a kind of fixed froth installation of built-in screw-rod air compressor, at the uniform velocity unstable with the foam overcoming fixed froth installation of the prior art ejection, cause the problem that fire-fighting efficiency reduces, also overcome fixed froth installation parts of the prior art easily to damage, cause the problem that maintenance cost increases, thus both improve fire-fighting efficiency, again reduce the maintenance cost of device.
To achieve these goals, the technical scheme that the present invention takes is:
A fixed froth installation for built-in screw-rod air compressor, wherein, comprising:
Water pump, it is configured to extract water source and provides press water;
Foam solution bucket, it is configured to provide foam dope;
Foam proportioner, it is configured to form a certain proportion of foam mixing liquid, and described foam proportioner is by water pump and described foam solution bucket described in soft pipeline communication;
Screw-rod air compressor, it is configured to compressed air is gases at high pressure;
Air and liquid mixer, it is configured to mix described gases at high pressure and described foam mixing liquid, and described air and liquid mixer is communicated with described foam proportioner by soft seal for pipe joints, described air and liquid mixer is also communicated with described screw-rod air compressor by a pressure-reducing valve sealing;
Straight stream nozzle, it is configured to spray the fire foam formed by described gases at high pressure and described foam mixing liquid.
The fixed froth installation of above-mentioned built-in screw-rod air compressor, wherein, also comprise valve and direct current atomization hydraulic giant, described direct current atomization hydraulic giant is communicated with described water pump by soft seal for pipe joints, and described valve is arranged on the soft pipeline between described direct current atomization hydraulic giant and described water pump.
The fixed froth installation of above-mentioned built-in screw-rod air compressor, wherein, also comprise a mixed proportion control valve, described mixed proportion control valve is arranged on the soft pipeline between described foam proportioner and described foam solution bucket.
The fixed froth installation of above-mentioned built-in screw-rod air compressor, wherein, described screw-rod air compressor comprises: motor, compression chamber, air accumulator, pressure transmitter, PID adjuster and frequency converter, wherein, described pressure transmitter is for measuring the ductwork pressure of reservoir outlet, the output of described pressure transmitter is connected with the input of described PID adjuster, and the output of described PID adjuster is connected with the input of described frequency converter, and the output of described frequency converter is connected with described motor.
The fixed froth installation of above-mentioned built-in screw air compressor, wherein, the power supply of described screw-rod air compressor main power source and described water pump is same power supply.
The fixed froth installation of above-mentioned built-in screw air compressor, wherein, the power input of described frequency converter is connected with described screw-rod air compressor main power source by starting contactor.
The fixed froth installation of above-mentioned built-in screw air compressor, wherein, the frequency conversion loop that described pressure transmitter, PID adjuster and frequency converter are formed is in parallel with the power frequency loop of this screw-rod air compressor.
The fixed froth installation of above-mentioned built-in screw air compressor, wherein, described water pump, described foam solution bucket, described foam proportioner, described screw-rod air compressor and described air and liquid mixer are integrated on a framework.
The fixed froth installation of built-in screw-rod air compressor provided by the invention, by adopting screw-rod air compressor, and utilize the ductwork pressure value of pressure transmitter measurement reservoir outlet and flow to adjustment control, then compare with the force value of setting, thus control the rotating speed that frequency converter regulates motor, make the compressed air of screw-rod air compressor stable output, and then produce stable foam, the foam overcoming fixed froth installation of the prior art ejection is at the uniform velocity unstable, cause the problem that fire-fighting efficiency reduces, also overcome fixed froth installation of the prior art and adopt piston type air compressor, its parts easily damage, cause the problem that maintenance cost increases, thus both improve fire-fighting efficiency, again reduce the maintenance cost of device.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, the present invention and feature, profile and advantage will become more apparent.Mark identical in whole accompanying drawing indicates identical part.Deliberately proportionally do not draw accompanying drawing, focus on purport of the present invention is shown.
Fig. 1 is the structural representation of the fixed froth installation of the built-in screw-rod air compressor that the embodiment of the present invention 1 provides;
Fig. 2 is the fundamental diagram of the screw-rod air compressor in the fixed froth installation of the built-in screw-rod air compressor that the embodiment of the present invention 1 provides.
Detailed description of the invention
Below in conjunction with accompanying drawing and specific embodiment, the present invention is further illustrated, but not as limiting to the invention.
Embodiment 1:
Fig. 1 is the structural representation of the fixed froth installation of the built-in screw-rod air compressor that the embodiment of the present invention 1 provides, Fig. 2 is the fundamental diagram of the screw-rod air compressor in the fixed froth installation of the built-in screw-rod air compressor that the embodiment of the present invention 1 provides, as shown in the figure, the fixed froth installation of the built-in screw-rod air compressor that the embodiment of the present invention 1 provides comprises: the water pump 101 providing press water for extracting water source, for providing the foam solution bucket 102 of foam dope, for the formation of the foam proportioner 103 of a certain proportion of foam mixing liquid, and foam proportioner 103 is by flow divider 01 and soft pipeline communication water pump 101, foam proportioner 103 is also by froth ratio control valve 03 and soft pipeline communication foam solution bucket 102 simultaneously, the foam mixing liquid of debita spissitudo is mixed by foam proportioner 103, the fixed froth installation of this built-in screw-rod air compressor also comprises the screw-rod air compressor 104 that compressed air is gases at high pressure, for the air and liquid mixer 105 of mixed high-voltage gas and foam mixing liquid, screw-rod air compressor 104 passes through the gas import of pressure-reducing valve 04 and soft pipeline communication air and liquid mixer 105, and the liquid interface of air and liquid mixer 105 is by a soft pipeline communication foam proportioner 103, thus mix comparatively fine and smooth fire foam, then eject comparatively fine and smooth fire foam by straight stream nozzle 106, fire-fighting efficiency is higher, and it is safer.，
In the fixed froth installation of the built-in screw-rod air compressor provided in the embodiment of the present invention 1, also comprise valve 02 and direct current atomization hydraulic giant 107, direct current atomization hydraulic giant 107 is communicated with water pump 101 by soft pipeline with flow divider 01 sealing, valve 02 is arranged on the soft pipeline between direct current atomization hydraulic giant 107 and flow divider 01, by by-pass valve control 02, just can control direct current atomization hydraulic giant 107 and whether spray water smoke, under foam fire-fighting stoste deficiency or other particular cases, carrying out smoothly of fire extinguishing can be ensured.
In the fixed froth installation of the built-in screw-rod air compressor provided in the embodiment of the present invention 1, the power supply of screw-rod air compressor 104 main power source and water pump 101 is same power supply, and water pump 101, foam solution bucket 102, foam proportioner 103, screw-rod air compressor 104 and air and liquid mixer 105 are integrated on a framework, thus convenient mobile, reaching of maximal efficiency prepares fire-fighting work state.
In the fixed froth installation of the built-in screw-rod air compressor provided in the embodiment of the present invention 1, screw-rod air compressor 104 comprises: motor, compression chamber, air accumulator, pressure transmitter, PID adjuster and frequency converter, wherein, pressure transmitter is for measuring the ductwork pressure of reservoir outlet, the output of pressure transmitter is connected with the input of PID adjuster, the output of PID adjuster is connected with the input of frequency converter, the output of frequency converter is connected with motor, wherein, the power input of frequency converter is connected with screw-rod air compressor main power source by starting contactor, pressure transmitter simultaneously, the power frequency loop of the frequency conversion loop that PID adjuster and frequency converter are formed and this screw-rod air compressor is arranged in parallel.
What the fixed froth installation of the built-in screw-rod air compressor that the embodiment of the present invention 1 provides adopted is compressed air, mode is gone out in efficient concentration foam fire-fighting liquid and the three-in-one brute force spray of water, invest that moisture film endotherm area on foam is large, heat absorption capacity is strong, foam has again the effect of isolated air simultaneously, special foam solution can stop chemical looping to react, and extinguishing effect is better than conventional foam, water tank type fire fighting truck far away.And foaming agent can reduce the tension force between hydrone significantly, make foam solution have very strong permeability, may penetrate into the inside of comburant, greatly shorten attack time.Owing to lowering the temperature rapidly, can reduce the danger of resume combustion, reduce the formation of smog, therefore, fighter does not have the burden of high temperature, greatly can reduce the danger of fighter, thus fire-fighting efficiency is high, safer.
Meanwhile, water and foam consumption few, use cost is low.Because moisture is all attached to foam surface, all serve the effect of heat absorption, decrease the loss of water, overcome the weakness that the conventional water tank type used in fire-fighting water yield is large, under equal fire extinguishing condition, can economize on water more than 80% compared with traditional water tank type fire fighting truck, the both urban and rural area being thus specially adapted to drought and water shortage uses.Compressed-air foam high expansion foam, frothing percentage is high, and usual mixing ratio is 0.2%-0.5%, and the mixing ratio of regular-type foam is 3%-6%, and compressed-air foam concentrate consumption is only 1/10 of regular-type foam liquid.
More of paramount importance, the fixed froth installation of the built-in screw-rod air compressor that the embodiment of the present invention 1 provides can according to realism, quick adjustment foam form, to meet the extinguishment requirement under different situations.Built-in screw-rod air compressor fixed froth installation can regulate foam form easily, can be met the fire extinguishing demand under different situations by adjusting air inflow quantity etc.Wet type foaming aqueous amount is large, has good permeability simultaneously, can be used for first arrival first attack and eliminates residual fire.Dry type foaming aqueous amount is few; there is stronger adhesive force and stability; the surface of object can be attached to the long period; by air insulated; can play a very good protection to unburning material, after fire extinguishing, also effectively can prevent resume combustion) water content is low, can reduce damage by water; be conducive to protecting evidence, reduce the loss.Water content in compressed-air foam is lower, there will not be immersion phenomenon, and the damage by water caused is relatively little, is also conducive to the collection of evidence and the cause investigation of fire simultaneously.
In sum, the fixed froth installation of the built-in screw-rod air compressor that the embodiment of the present invention 1 provides, by adopting screw-rod air compressor, and utilize the ductwork pressure value of pressure transmitter measurement reservoir outlet and flow to adjustment control, then compare with the force value of setting, thus control the rotating speed that frequency converter regulates motor, make the compressed air of screw-rod air compressor stable output, and then produce stable foam, the foam overcoming fixed froth installation of the prior art ejection is at the uniform velocity unstable, cause the problem that fire-fighting efficiency reduces, also overcome fixed froth installation of the prior art and adopt piston type air compressor, its parts easily damage, cause the problem that maintenance cost increases, thus both improve fire-fighting efficiency, again reduce the maintenance cost of device.
It should be appreciated by those skilled in the art that those skilled in the art can realize described change case in conjunction with prior art and above-described embodiment, do not repeat them here.Such change case does not affect flesh and blood of the present invention, does not repeat them here.
Above preferred embodiment of the present invention is described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, the equipment wherein do not described in detail to the greatest extent and structure are construed as to be implemented with the common mode in this area; Any those of ordinary skill in the art, make many possible variations and modification not departing from technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations, this does not affect flesh and blood of the present invention.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solution of the present invention protection.
Claims (8)
1. a fixed froth installation for built-in screw-rod air compressor, is characterized in that, comprising:
Water pump, it is configured to extract water source and provides press water;
Foam solution bucket, it is configured to provide foam dope;
Foam proportioner, it is configured to form a certain proportion of foam mixing liquid, and described foam proportioner is by water pump and described foam solution bucket described in soft pipeline communication;
Screw-rod air compressor, it is configured to compressed air is gases at high pressure;
Air and liquid mixer, it is configured to mix described gases at high pressure and described foam mixing liquid, and described air and liquid mixer is communicated with described foam proportioner by soft seal for pipe joints, described air and liquid mixer is also communicated with described screw-rod air compressor by a pressure-reducing valve sealing;
Straight stream nozzle, it is configured to spray the fire foam formed by described gases at high pressure and described foam mixing liquid.
2. the fixed froth installation of built-in screw-rod air compressor as claimed in claim 1, it is characterized in that, also comprise valve and direct current atomization hydraulic giant, described direct current atomization hydraulic giant is communicated with described water pump by soft seal for pipe joints, and described valve is arranged on the soft pipeline between described direct current atomization hydraulic giant and described water pump.
3. the fixed froth installation of built-in screw-rod air compressor as claimed in claim 1, is characterized in that, also comprises a mixed proportion control valve, and described mixed proportion control valve is arranged on the soft pipeline between described foam proportioner and described foam solution bucket.
4. the fixed froth installation of built-in screw-rod air compressor as claimed in claim 1, it is characterized in that, described screw-rod air compressor comprises: motor, compression chamber, air accumulator, pressure transmitter, PID adjuster and frequency converter, wherein, described pressure transmitter is for measuring the ductwork pressure of reservoir outlet, the output of described pressure transmitter is connected with the input of described PID adjuster, the output of described PID adjuster is connected with the input of described frequency converter, and the output of described frequency converter is connected with described motor.
5. the fixed froth installation of built-in screw air compressor as claimed in claim 4, is characterized in that, the power supply of described screw-rod air compressor main power source and described water pump is same power supply.
6. the fixed froth installation of built-in screw air compressor as claimed in claim 5, is characterized in that, the power input of described frequency converter is connected with described screw-rod air compressor main power source by starting contactor.
7. the fixed froth installation of built-in screw air compressor as claimed in claim 4, is characterized in that, the frequency conversion loop that described pressure transmitter, PID adjuster and frequency converter are formed is in parallel with the power frequency loop of this screw-rod air compressor.
8. the fixed froth installation of built-in screw air compressor as claimed in claim 4, is characterized in that, described water pump, described foam solution bucket, described foam proportioner, described screw-rod air compressor and described air and liquid mixer are integrated on a framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410818128.9A CN104524717A (en) | 2014-12-24 | 2014-12-24 | Foam fire-extinguishing device with internal screw type air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410818128.9A CN104524717A (en) | 2014-12-24 | 2014-12-24 | Foam fire-extinguishing device with internal screw type air compressor |
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| CN104524717A true CN104524717A (en) | 2015-04-22 |
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| CN201410818128.9A Pending CN104524717A (en) | 2014-12-24 | 2014-12-24 | Foam fire-extinguishing device with internal screw type air compressor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106267648A (en) * | 2016-08-20 | 2017-01-04 | 闽太消防科技股份有限公司 | Portable diesel motor foam truck |
| WO2017016143A1 (en) * | 2015-07-29 | 2017-02-02 | 成都自能消防设备有限公司 | Air foam firefighting system |
| CN106609754A (en) * | 2015-07-24 | 2017-05-03 | 池州汉诺威机电设备科技有限公司 | Screw rod air compressor frequency conversion control system |
| CN109513140A (en) * | 2018-12-06 | 2019-03-26 | 陕西航天动力高科技股份有限公司 | A kind of control method of fixed B class A foam A extinguishing device and extinguishing device |
| CN115957473A (en) * | 2021-10-09 | 2023-04-14 | 南京南瑞继保电气有限公司 | Compressed air foam multi-target multi-level control system |
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| CN106609754A (en) * | 2015-07-24 | 2017-05-03 | 池州汉诺威机电设备科技有限公司 | Screw rod air compressor frequency conversion control system |
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| CN109513140A (en) * | 2018-12-06 | 2019-03-26 | 陕西航天动力高科技股份有限公司 | A kind of control method of fixed B class A foam A extinguishing device and extinguishing device |
| CN115957473A (en) * | 2021-10-09 | 2023-04-14 | 南京南瑞继保电气有限公司 | Compressed air foam multi-target multi-level control system |
| CN115957473B (en) * | 2021-10-09 | 2024-04-30 | 南京南瑞继保电气有限公司 | Multi-target multi-level control system for compressed air foam |
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Application publication date: 20150422 |