CN108295402A - A kind of electronic type froth ratio adjusting constant pressure explosion-proof Fire Fighting Pumps - Google Patents
A kind of electronic type froth ratio adjusting constant pressure explosion-proof Fire Fighting Pumps Download PDFInfo
- Publication number
- CN108295402A CN108295402A CN201710724587.4A CN201710724587A CN108295402A CN 108295402 A CN108295402 A CN 108295402A CN 201710724587 A CN201710724587 A CN 201710724587A CN 108295402 A CN108295402 A CN 108295402A
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- Prior art keywords
- positive displacement
- displacement pump
- foam solution
- fire fighting
- foam
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Classifications
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- 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
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses a kind of electronic type froth ratios to adjust constant pressure explosion-proof Fire Fighting Pumps, includes motor, active positive displacement pump, driven positive displacement pump, foams mix device, foam solution bypass pipeline section, foam solution injection pipeline section；The active positive displacement pump is equipped with water inlet section and liquid outlet section, the flow for adjusting main pipe network water；The driven positive displacement pump is equipped with foam solution suction inlet section and foam solution outlet section, the flow for adjusting foam solution；The rotation axis of the motor and the first rotor, the first rotor of driven positive displacement pump of the active positive displacement pump are coaxial.Apparatus of the present invention are simple in structure, reliable, reduce manufacturing cost；Apparatus of the present invention can realize that the equal proportion of water and foam solution is adjusted, and equal proportion adjustable range is big, and can realize the adjusting of water and foam solution mixed proportion, changes the mixed proportion of water and foam solution according to actual demand, and the scope of application is wider；In addition, the hydraulic loss of apparatus of the present invention operational process is less than 20%, mixing efficiency is high, there is the foreground that commercial introduction is applied.
Description
Technical field
The invention belongs to fire-fighting machinery design and manufacturing technology fields more particularly to a kind of electronic type froth ratio to adjust constant pressure
Explosion-proof Fire Fighting Pumps.
Background technology
Froth fire extinguishing system has the characteristics that safe and reliable, economical and practical, fire-fighting efficiency is high, especially to B class fire of putting out a fire to save life and property
It is the mode of putting out a fire to save life and property that domestic and international oil fire is basic at present with more superiority outstanding.Foam proportioner is that foam goes out
The quality of " nerve center " of fiery system, working performance is directly related to the success or failure that froth fire extinguishing system fights a fire.Foam
Proportioner has pressure air-foam proportioner, circular pump type foam proportioner, the mixing of pipeline froth ratio
The types such as device, electronic control type proportion mixer.
Pressure type foam proportioner is applied to ZP32 foams/water spray automatic fire extinguishing system, low expansion foam is put out a fire
In system, aqueous film-forming foam spraying fire-extinguishing system, it is made of water inlet pipe, outlet tube, mixing chamber, diffuser etc..Pressure type foam
Proportioner mainly utilizes venturi principle, when pressure water passes through proportioner, inside it between foam liquid storage tank
Negative pressure differential is generated, so that foam solution is passed through foam liquid pipe connect with proportioner and enters proportioner, in company
There is the orifice plate of control foam flow quantity in taking over, just forms the foam-water mixed liquor for stablizing mixed proportion.
Negative line pressure formula foam proportioner is mainly used in the equipment such as foam fire hydrant box, mobile foam cart
In ratio mixing.Pressure water after import enters proportioner, most of water through nozzle at high speeds spray into diffuser, nozzle with
Negative pressuren zone is formed between diffuser, foam solution is inhaled into negative pressuren zone by liquid sucting port, enters diffuser simultaneously with pressure water, from outlet stream
Go out；Also sub-fraction pressure water flows out after then being mixed with the blended liquid phase that diffuser flows out by regulating valve from outlet；Mixing
Equipped with control sucking foam solution adjustable valve on device, the handle of turn control valve adjusts the mixing ratio of mixed liquor, in regulating valve
Direction board, which indicates, inhales foam solution proportional numerical value.
Pump proportioner is made of regulation handle, direction board, regulating valve, mixing chamber, diffuser etc..Mixer exists
In 0.6 ~ 1.4MPa inlet pressure ranges, draws foam liquid measure and be basically unchanged in a certain shelves, and generation and spray foam
Equipment at various pressures its mix liquid measure when changing, mixing ratio will generate variation.Therefore it suitably to adjust and control
The pressure with spray foam equipment is generated, prevents its pressure from too low or too high, so that ensureing foam liquid measure in mixing liquid measure
In shared ratio be 6 ~ 7%.
The electronics control of water-foams mix ratio and mixed process may be implemented in electronic control type foam proportioning unit
System is the current hot spot studied and apply.Publication number CN 202005967U disclose a kind of Full-automatic foam proportioner,
Including main control circuit, valve controling circuit and signal acquisition circuit, wherein the main control circuit is mainly complete by master controller
At；Valve controling circuit is made of valve control module, froth ratio control valve and valve current detection circuit；Signal acquisition electricity
Road is mainly made of signal acquisition module and each sensor, and sensor includes water flow sensor, foam flow sensor, low liquid
Level sensor and coefficient vernier knob.Advantage is：It adjusted with accurate froth ratio, support a variety of calibers, power protection, intelligence
The functions such as foam monitoring can be lacked；Full-automatic foam proportion adjustment or manual froth ratio shaping modes both of which pair can be used
System is controlled, and system operatio simplicity is understandable, display it is clear and intuitive, can long-time steady operation.Publication No. CN
The patent of 201120060Y discloses a kind of electric-controlled automatic foam scale mixer of fire vehicle, including water pump, foam inlet pipe,
Pump water inlet and outlet tube, it is characterized in that：The bubble for further including micro computer control box and being electrically connected with the micro computer control box
Foam flowmeter, water ga(u)ge, electrically-controlled valve.Acquire the reality of water pump and foam dope respectively by water ga(u)ge and foam flowmeter
Flow controls valve opening after micro computer processing in micro computer control box, to realize in water pump different operating pressure
It can realize that foam and water mix correct suction type ring pump automatic ratio hybrid system under power, different output flows.
But there are still following disadvantages for existing electronic control type proportion mixer：1. it is complicated, it is of high cost；②
Traditional proportioner such as uses venturi principle, can make mainstream medium（Water）The pressure loss reach 35%, under efficiency；
3. when main pipeline flow and pressure vary widely（≧±20%）, the liquid fraction precision sucked can substantially reduce（Accidentally
Cha≤± 30%）.
It is, therefore, desirable to provide one kind can reduce cost, the electronic type proportion mixer of efficiency and performance is improved.
Invention content
In view of the deficiencies of the prior art, the present invention provides a kind of electronic type froth ratios to adjust constant pressure explosion-proof fire pump
Group can substitute traditional foam proportioning unit for froth fire extinguishing system.Present invention proposition need to press a variety of media
In the system of certain proportion mixing, a set of coaxial volume pump group is installed, realizes what a variety of media were mixed in required ratio
Purpose.
The above-mentioned purpose of the present invention is achieved by the following technical programs.
A kind of electronic type froth ratio adjusting constant pressure explosion-proof Fire Fighting Pumps, include motor, active positive displacement pump, driven volume
Pump, foams mix device, foam solution bypass pipeline section, foam solution inject pipeline section；The active positive displacement pump is equipped with water inlet section and goes out
Liquid mouth section, the flow for adjusting main pipe network water；The driven positive displacement pump is equipped with foam solution suction inlet section and foam solution outlet
Section, the flow for adjusting foam solution；The first rotor, the driven positive displacement pump of the rotation axis of the motor and the active positive displacement pump
The first rotor it is coaxial；The water inlet section is also connected by recoil valve with the foam solution suction inlet section, the foam solution row
Outlet section is connected with a three-way control valve, the both ends of foam solution bypass pipeline section respectively with the three-way control valve, foam solution
Suction inlet section is connected, and the both ends of the foam solution injection pipeline section are connected with the three-way control valve, active positive displacement pump respectively, described
The liquid outlet section of active positive displacement pump is connected with the foams mix device；The motor, recoil valve, three-way control valve with control
System is electrically connected.
Active positive displacement pump in apparatus of the present invention can inversely become positive displacement hydraulic drive apparatus, since hydro powered is produced
Raw energy drives the driven positive displacement pump in same root rotary shaft, driven positive displacement pump to extract certain flow by setting ratio
Foam solution is mixed with the water in active positive displacement pump.Due to coaxial, the driven positive displacement pump is identical as active volume revolution speed, and
And its flow is directly proportional to rotating speed in positive displacement pump, and when driven volumetric pump flow is set as the 10% of main pipeline flow, error model
It encloses and can guarantee 5%.Also, the common adjusting that pipeline section is bypassed by the three-way control valve and foam solution is responsible for, it can be achieved that entering
The flow of net changes adjustable between 1 ~ 10%.The output fluid pressure of the driven positive displacement pump is higher than main pipeline Fluid pressure
20%。
Preferably, the first rotor of the active positive displacement pump, rotating speed are 3 ~ 600rpm, 0.1 ~ 1.6MPa of pressure limit, stream
Measure 0.5 ~ 100L/s of range.
Preferably, synchronous reduction gearing is equipped between the motor, active positive displacement pump.
Preferably, synchronous reduction gearing also is provided between the active positive displacement pump and driven positive displacement pump
Preferably, multiple rotors of identical quantity are respectively equipped in the active positive displacement pump, driven positive displacement pump.
Preferably, the Fire Fighting Pumps also include an air pump, the air pump pass sequentially through exhaust pipe, air accumulator,
Cooling gas check valve is connected with the foams mix device.At this point, in fact providing a kind of electronic type froth ratio adjusting constant pressure
Explosion-proof fighting fires with compressed-air foam pump group.
Preferably, it is connected by electromagnetic clutch between the air pump and the driven positive displacement pump, the electromagnetic clutch
Device is double clutch.The first of the rotation axis of the axis of the first clutch of the double clutch and the motor, active positive displacement pump
Rotor, the first rotor of driven positive displacement pump are coaxial；The axis of the second clutch of the double clutch and the power spindle of air pump
Coaxially.
Preferably, the electromagnetic clutch/air accumulator be equipped with gas pressure switch, the gas pressure switch with it is described
Control system is electrically connected.
Preferably, the foam solution injection pipeline section is connected with the water inlet section side wall of the active positive displacement pump.
Preferably, the liquid outlet section of the active positive displacement pump is equipped with pressure sensor or/and pressure gauge.
Preferably, the synchronous reduction gearing/air pump is connected by oil pump with cooling fan and radiator coil tube.
Preferably, the control system includes controller, frequency converter and signal acquisition module, and the controller includes pneumatics
Machine controller, valve positioner.
Compared with prior art, advantageous effect of the present invention is：
1, work as main flow（Water）When changing between 1 ~ 100%, apparatus of the present invention can realize that the equal proportion of water and foam solution is adjusted,
Equal proportion adjustable range is big；And it is possible to which changing foam solution by the three-way control valve injects the flow of pipeline section, and ensure to steep
It is constant that foam liquid injects the sum of flow of pipeline section and foam solution bypass pipeline section, you can realize the adjusting of water and foam solution mixed proportion,
Change the mixed proportion of water and foam solution according to actual demand, the scope of application is wider.
2, present apparatus hydraulic loss is less than 20%, and mixing efficiency is high；When main pipeline flow and pressure vary widely
（≧±20%）, the proportional precision height of present apparatus sucking liquid（Wu Cha≤± 10%）
3, apparatus of the present invention are simple in structure, reliable, and the present apparatus can reduce the 90% of manufacturing cost.
Description of the drawings
Fig. 1 is the pipeline configuration schematic diagram that a kind of 1 electronic type froth ratio of the embodiment of the present invention adjusts constant pressure explosion-proof Fire Fighting Pumps.
Fig. 2 is the structural schematic diagram that a kind of 2 electronic type froth ratio of the embodiment of the present invention adjusts constant pressure explosion-proof Fire Fighting Pumps.
In figure：1, motor；2, synchronous reduction gearing；3, active positive displacement pump；301, water inlet section；302, liquid outlet section；
303, pressure sensor；304, pressure gauge；305, vacuum meter；4, driven positive displacement pump；401, foam solution suction inlet section；5, foam solution
Bypass pipeline section；501, three-way control valve；6, foam solution injects pipeline section；601, foam hydraulic control valve；7, water injects pipeline section；701, anti-
Rush valve；8, foams mix device；801, air foam outlet section；9, air pump；901, exhaust pipe；902, air filter；10、
Air accumulator；101, cooling gas check valve；11, gas pressure switch；12, oil pump；13, cooling fan；14, radiator coil tube；15, electromagnetism
Clutch；16, control system；161, air compressor controller；162, valve positioner；163, frequency converter.
Specific implementation mode
Clear, complete description is carried out to the technical solution of various embodiments of the present invention below with reference to attached drawing, it is clear that described
Embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiment of the present invention, this field
Those of ordinary skill's obtained all other embodiment without making creative work, belongs to institute of the present invention
The range of protection.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
The present invention is described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.
Embodiment 1
As shown in Figure 1, a kind of electronic type froth ratio adjusts constant pressure explosion-proof Fire Fighting Pumps, include motor 1, synchronous reduction gearing
2, active positive displacement pump 3, driven positive displacement pump 4, foam solution bypass pipeline section 5, foam solution injection pipeline section 6, foams mix device 8.It is described
Active positive displacement pump 3 is equipped with water inlet section 301 and liquid outlet section 302, the flow for adjusting main pipeline water；The driven positive displacement pump
4 are equipped with foam solution suction inlet section 401 and foam solution outlet section, the flow for adjusting foam solution.The motor 1 and actively appearance
Between product pump 3, synchronous reduction gearing 2 is equipped between active positive displacement pump 3 and driven positive displacement pump 4.The rotation axis of the motor 1 with
The first rotor of the active positive displacement pump 3, the first rotor of driven positive displacement pump 4 and two synchronous reduction gearing 2 are coaxial.It is described
Water inlet section 301 also injects pipeline section 7 by recoil valve 701, water and is connected with the foam solution suction inlet section 401, the foam solution
Outlet Duan Yuyi three-way control valves 501 are connected, the both ends of foam solution bypass pipeline section 5 respectively with the three-way control valve
501, foam solution suction inlet section 401 is connected, the both ends of foam solution injection pipeline section 6 respectively with the three-way control valve 501, main
Dynamic positive displacement pump 3 is connected.The liquid outlet section 302 of the active positive displacement pump 3 is connected with the foams mix device 8；The motor 1,
Recoil valve 701, three-way control valve 501 are electrically connected with control system.The control system includes controller and display screen, described
Controller is used for each control of display control program for controlling three-way control valve 501, recoil valve 701 and motor 1, the display screen
System and measurement data.
The first rotor of the active positive displacement pump 3, rotating speed are 3 ~ 600rpm, 0.1 ~ 1.6MPa of pressure limit, range of flow
0.5~100L/s.The rotating speed of the driven positive displacement pump 4 is identical as the active positive displacement pump 3.The active positive displacement pump 3, from visibly moved
It is respectively equipped with multiple rotors of identical quantity in product pump 4, is specially two in the present embodiment.
Operation principle explanation：The rotation axis of the motor 1 drive the synchronous reduction gearing 2, active positive displacement pump 3 first
Rotor, driven positive displacement pump 4 the first rotor operate synchronously, while being responsible for net fluid（Water）Entered by water inlet section 301 and is actively held
Product pump 3（Water pump）The 3 impeller of rotor rotation lasts acting of active positive displacement pump is impacted, then driven positive displacement pump 4 is driven by connecting shaft
Impeller of rotor operates synchronously, driven positive displacement pump 4（Foam pump）Foam solution suction inlet section suck foam solution, through three-way control valve
501 and foam solution injection pipeline section 6 liquid outlet section 302 with supervisor net fluid（Water）Mixing.Due to volume pump characteristics be flow with
Rotating speed is directly proportional, thus when two kinds pump design discharge once it is determined that, from supervisor net outflow mixing liquid ratio with regard to certain.
It is changeable according to actual demand for the ratio of mixed liquor to be realized, it can be by injecting pipeline section 6, threeway by foam solution
The flow adjustment pipe network that regulating valve 501, foam solution bypass the composition of pipeline section 5 is realized, is injected the flow of pipeline section 6 by foam solution and is led to
The sum of the flow for crossing foam solution bypass pipeline section 5 is equal to driven positive displacement pump 4（Foam pump）Foam solution outlet section flow out flow, when
The flow of changeable foam solution injection pipeline section 6 when three-way control valve 501 is adjusted, and ensures the flow of foam solution injection pipeline section 6
It is constant that the sum of flow of pipeline section 5 is bypassed with foam solution；At this point it is possible to realize that foam solution and water are mixed in varing proportions, and
Foams mix device is expelled to by liquid outlet section 302.
After Fire Fighting Pumps use of the present invention, 401 valve of foam solution suction inlet section is closed, opens recoil valve 701, actively
Liquid in positive displacement pump 3（Water）Into driven positive displacement pump 4（Foam pump）In system, equipment interior flushing and cleaning function are completed.
Embodiment 2
As shown in Fig. 2, the present embodiment provides a kind of electronic type froth ratios to adjust constant pressure explosion-proof fighting fires with compressed-air foam pump group,
Include motor 1, synchronous reduction gearing 2, active positive displacement pump 3, driven positive displacement pump 4, foam solution bypass pipeline section 5, foam solution injection
Pipeline section 6, foams mix device 8 and air pump 9.The motor 1, active positive displacement pump 3, driven positive displacement pump 4, foam solution bypass pipeline section
5, three-way control valve 501, the agent structure of foams mix device 8 and connection relation are roughly the same with embodiment 1.Specifically,
The injection pipeline section 6 of foam solution described in the present embodiment is connected with 301 side wall of water inlet section of the active positive displacement pump 3, foam solution note
Enter pipeline section 6 and is equipped with foam hydraulic control valve 601.Synchronous reduction gearing 2 is equipped between the motor 1 and active positive displacement pump 3, it is described
Directly it is connected by connecting shaft between active positive displacement pump 3 and driven positive displacement pump 4.The air pump 9 and the driven positive displacement pump 4 it
Between by electromagnetic clutch 15 be connected, at the air inlet of the air pump 9 be equipped with air filter 902.The electromagnetic clutch
15 be double clutch, the rotation axis of the axis of the first clutch of the double clutch and the motor 1, active positive displacement pump 3 the
One rotor, the first rotor of driven positive displacement pump 4 are coaxial；The power of the axis and air pump 9 of the second clutch of the double clutch
Main shaft is coaxial.The synchronous reduction gearing 2, air pump 9 are connected by oil pump 12 with cooling fan 13, radiator coil tube 14.
It is mixed that the gas of the air pump 9 passes sequentially through exhaust pipe 901, air accumulator 10, cooling gas check valve 101 and the foam
It attaches together and sets 8 connected, the mixing of progress water-foam solution-air, the air foams mixed in proportion in foams mix device 8
Liquid is expelled to follow-up equipment by air foam outlet section 801.The electromagnetic clutch 15 and air accumulator 10 are equipped with gas pressure
The liquid outlet section 302 of switch 11, the active positive displacement pump 3 is equipped with pressure sensor 303, pressure gauge 304.The active positive displacement pump
3 water inlet section 301 is equipped with vacuum meter 305, the gas pressure switch 11, pressure sensor 303, pressure gauge 304, vacuum meter
305 are electrically connected with the control system.The control system 16 includes controller, frequency converter 163, signal acquisition module and display
Device, the controller include air compressor controller 161, valve positioner 162, and the signal acquisition module is for receiving pressure biography
The detection data of the sensors such as sensor 303, pressure gauge 304, vacuum meter 305, and show by display the control and inspection of each component
Survey situation.
The present embodiment is as a kind of more preferred embodiment, not only by electromagnetic clutch 15 by air pump 9 and institute
Driven positive displacement pump 4 is stated, active positive displacement pump 3 is connected and coordinates the optimization design of pipeline, water-bubble may be implemented in a device
The mixing of three kinds of media of foam liquid and air, mixing efficiency is high, applied widely, is directly sprayed after mixing and can reach good go out
Fiery effect；But also include each sensor and valve（Such as pressure sensor 303, pressure gauge 304, vacuum meter 305, threeway tune
Save valve 501, foam hydraulic control valve 601, recoil valve 701, cooling gas check valve 101, gas pressure switch 11）, for device internal pressure
Power, rate-of flow are monitored in real time, and adjust the mixed proportion of water-foam solution and air as needed, and mixed-precision is high, peace
It is complete explosion-proof.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
To modify to the technical solution recorded in previous embodiment, either which part or all technical features are equal
It replaces；And these modifications or replacements, technical solution of the embodiment of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of electronic type froth ratio adjusts constant pressure explosion-proof Fire Fighting Pumps, which is characterized in that include motor, active volume
Pump, driven positive displacement pump, foams mix device, foam solution bypass pipeline section, foam solution inject pipeline section；The active positive displacement pump be equipped with into
Mouth of a river section and liquid outlet section, the flow for adjusting main pipe network water；The driven positive displacement pump is equipped with foam solution suction inlet section and bubble
Foam liquid outlet section, the flow for adjusting foam solution；The first rotor of the rotation axis of the motor and the active positive displacement pump,
The first rotor of driven positive displacement pump is coaxial；The water inlet section is also connected by recoil valve with the foam solution suction inlet section, institute
It states foam solution outlet Duan Yuyi three-way control valves to be connected, the both ends of the foam solution bypass pipeline section are adjusted with the threeway respectively
Valve, foam solution suction inlet section are connected, the both ends of foam solution injection pipeline section respectively with the three-way control valve, active positive displacement pump
It is connected, the liquid outlet section of the active positive displacement pump is connected with the foams mix device；The motor, recoil valve, threeway are adjusted
Valve is electrically connected with control system.
2. a kind of electronic type froth ratio according to claim 1 adjusts constant pressure explosion-proof Fire Fighting Pumps, which is characterized in that institute
It states and is equipped with synchronous reduction gearing between motor, active positive displacement pump.
3. a kind of electronic type froth ratio according to claim 1 adjusts constant pressure explosion-proof Fire Fighting Pumps, which is characterized in that institute
State multiple rotors that identical quantity is respectively equipped in active positive displacement pump, driven positive displacement pump.
4. constant pressure explosion-proof Fire Fighting Pumps are adjusted according to a kind of electronic type froth ratio of claim 1 ~ 3 any one of them, it is special
Sign is that the Fire Fighting Pumps also include an air pump, and the air pump passes sequentially through exhaust pipe, air accumulator, gas unidirectional
Valve is connected with the foams mix device.
5. a kind of electronic type froth ratio according to claim 4 adjusts constant pressure explosion-proof Fire Fighting Pumps, which is characterized in that institute
It states and is connected by electromagnetic clutch between air pump and the driven positive displacement pump, the electromagnetic clutch is double clutch.
6. a kind of electronic type froth ratio according to claim 4 adjusts constant pressure explosion-proof Fire Fighting Pumps, which is characterized in that institute
It states air accumulator and is equipped with gas pressure switch, the gas pressure switch is electrically connected with the control system.
7. a kind of electronic type froth ratio according to claim 4 adjusts constant pressure explosion-proof Fire Fighting Pumps, which is characterized in that institute
Foam solution injection pipeline section is stated with the water inlet section side wall of the active positive displacement pump to be connected.
8. a kind of electronic type froth ratio according to claim 1 or 4 adjusts constant pressure explosion-proof Fire Fighting Pumps, feature exists
In the liquid outlet section of the active positive displacement pump is equipped with pressure sensor or/and pressure gauge.
9. a kind of electronic type froth ratio according to claim 2 adjusts constant pressure explosion-proof Fire Fighting Pumps, which is characterized in that institute
Synchronous reduction gearing is stated by oil pump to be connected with cooling fan and radiator coil tube.
10. a kind of electronic type froth ratio according to claim 4 adjusts constant pressure explosion-proof Fire Fighting Pumps, which is characterized in that
The control system includes controller, frequency converter and signal acquisition module, and the controller includes air compressor controller, valve control
Device processed.
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| CN201710724587.4A CN108295402A (en) | 2017-08-22 | 2017-08-22 | A kind of electronic type froth ratio adjusting constant pressure explosion-proof Fire Fighting Pumps |
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| CN201710724587.4A CN108295402A (en) | 2017-08-22 | 2017-08-22 | A kind of electronic type froth ratio adjusting constant pressure explosion-proof Fire Fighting Pumps |
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Cited By (3)
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| CN110448843A (en) * | 2019-09-04 | 2019-11-15 | 广德君安达消防科技有限公司 | A kind of driven high voltage fire-fighting pumping unit having the double function of increasing pressure of aqueous vapor |
| CN113464975A (en) * | 2021-07-19 | 2021-10-01 | 中国石油天然气股份有限公司 | Ignition gun |
| CN113577609A (en) * | 2021-08-06 | 2021-11-02 | 国网安徽省电力有限公司电力科学研究院 | Mixing device for compressed air foam fire extinguishing system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110448843A (en) * | 2019-09-04 | 2019-11-15 | 广德君安达消防科技有限公司 | A kind of driven high voltage fire-fighting pumping unit having the double function of increasing pressure of aqueous vapor |
| CN110448843B (en) * | 2019-09-04 | 2021-01-29 | 广德君安达消防科技有限公司 | Electric high-pressure fire pump equipment with water-gas double-boosting function |
| CN113464975A (en) * | 2021-07-19 | 2021-10-01 | 中国石油天然气股份有限公司 | Ignition gun |
| CN113577609A (en) * | 2021-08-06 | 2021-11-02 | 国网安徽省电力有限公司电力科学研究院 | Mixing device for compressed air foam fire extinguishing system |
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Application publication date: 20180720 |