CN209564541U - A kind of fixed B class A foam A extinguishing device - Google Patents
A kind of fixed B class A foam A extinguishing device Download PDFInfo
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- CN209564541U CN209564541U CN201822044004.6U CN201822044004U CN209564541U CN 209564541 U CN209564541 U CN 209564541U CN 201822044004 U CN201822044004 U CN 201822044004U CN 209564541 U CN209564541 U CN 209564541U
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Abstract
The utility model relates to a kind of fixed B class A foam A extinguishing devices, pass through the combination of foam pumping system, water pump system, air compressor system, realize the mixing of B class A foam A, water, compressed air, it is abundant in the frostproof froth n that discharge outlet is formed, it is not easily formed filariasis, can be used for the fire extinguishing of the liquid fires such as oils.Water pump system, air compressor system and foam pumping system can not only be adjusted froth ratio, while can a wide range of regulating water flow using individual power drive by PLC controller to water pump, air compressor machine and foam pump closed-loop control on a large scale；So that the adjustable range of extinguishing device becomes larger, can arbitrarily be adjusted between the 20%-100% of maximum stream flow.The control method of fixed compressed air B class A foam A extinguishing device and extinguishing device solves the fire fighting problem of large-scale liquid fire.
Description
Technical field
The utility model relates to a kind of fixed B class A foam A extinguishing devices.
Background technique
Existing fixed B class compression foam fire extinguishing system is multiple pressures for storing water, foam solution, compressed air premixed liquid
Power bottle forms in series and parallel.The quantity of extinguishing media of such device storage is limited, and output flow is fixed, it is difficult to meet fire complicated and changeable
The fire extinguishing demand of field environment.
Existing vehicular B class A foam A system does not add compressed air actively, is mixed into atmosphere by fire monitor and foams, hair
Bubble multiple is smaller, and extinguishing effect is bad.Foam is wetter simultaneously, for oil fire trickling fire easy to form.
Summary of the invention
In order to solve the problems, such as that existing B class A foam A extinguishing device fire-fighting ability is weak, the utility model provides a kind of fixed B
Class A foam A extinguishing device.
The technology of the utility model solves as follows:
Fixed B class A foam A extinguishing device, including foam pumping system, water pump system, air compressor system, export pipeline and electricity
Cabinet is controlled, is characterized in that
The foam pumping system is B class A foam A pumping system, including bubble chamber, the first solenoid valve, foam pump and foam pump electricity
Machine；
The water pump system includes water source, water pump and pump motor；
The air compressor system includes sequentially connected air compressor motor, air compressor machine and gs-oil separator；
The export pipeline is disposed with water pump connector, foam pump connector, air compressor machine from one end to the other end and connects
Interface and outlet valve, the export pipeline between foam pump connector and air compressor machine connector are water and foams mix pipeline；
The main water outlet of the water pump is connected to the water pump connector of export pipeline by water pump main line；
The foam outlet of the foam pump passes through foam pump connector of the foam pump piping connection to export pipeline, foam pump
The foam sprayed mixes at foam pump connector with the water from water pump；
The gs-oil separator passes through air compressor machine connector of the air compressor machine piping connection to export pipeline, the air compressor machine pipe
Road is provided with minimum pressure valve, and the mixture and the compressed air from air compressor machine component of water and foam are in air compressor machine connector
Place's mixing；
The power control cabinet is connect with pump motor, foam pump motor and air compressor motor.
Further, when the water surface at water source is lower than the arrangement height of water pump, water pump can not be pulled water out directly, therefore this reality
With it is novel further include vacuum pump system,
The vacuum pump system includes vacuum pump and second solenoid valve, and the vacuum pump is pumped by second solenoid valve and water
Mouth connection；The power of the vacuum pump is derived from pump motor.
Further, in order to cool down to air compressor machine, the water pump further includes the first side water outlet；The air-compressor set
Part further includes cooler, is provided with oil circuit and cooling water channel in cooler therein, and the first of the import of cooling water channel and water pump
The connection of side water outlet, the outlet of cooling water channel and the water inlet of water pump connect；The entrance of oil circuit and the oil circuit of gs-oil separator go out
Mouth connection, the outlet of oil circuit and the oil circuit import of air compressor machine connect.
Further, in order to realize the flushing to foam pump, the water pump further includes second side water outlet, described second side
Water outlet is connected to the entrance of foam pump by side water outlet pipeline, and the side water outlet pipe road is provided with third solenoid valve.
Further, in order to realize the accurate control to foam flow, water flow, compressed air require, the utility model
Power control cabinet include PLC controller, frequency converter group and foam pump electric machine controller；
The frequency converter group includes pump variable frequency device and air compressor frequency converter；
First flow sensor and first pressure sensor are provided on the water pump main line；
Second flow sensor is provided on the foam pump conduit；
The minimum pressure valve exit is additionally provided with second pressure sensor or third flow sensor；
The first regulating valve is additionally provided on the water and foams mix pipeline；
The PLC controller includes multiple signal input parts and multiple signal output ends；
Each signal input part of the PLC controller is connect with each sensor in sensor group, acquires pressure signal and stream
Measure signal；
One output end of the PLC controller is connect with the first regulating valve, controls foam by the first regulating valve of control
The flow of mixed pipe line；
One output end of the PLC controller is connect by pump variable frequency device with pump motor, and control water pump is passed through
Revolving speed controls the pressure of water pump；
One output end of the PLC controller is connect by foam pump electric machine controller with foam pump, is steeped by control
The flow of the revolving speed control foam of foam pump；
One output end of the PLC controller is connect by air compressor frequency converter with air compressor machine component, empty by control
The flow of the revolving speed control compressed air of press.
Meanwhile based on above-mentioned fixed B class A foam A extinguishing device, the utility model additionally provides a kind of fixed B class
The control method of fixed froth installation, is characterized in that, comprising the following steps:
1) following parameter is set in PLC controller:
Pressure, the pressure and foam in air compressor system minimum pressure valve exit that flow, the water pump of water pump work normally
With the ratio of water, the pressure in air compressor system minimum pressure valve exit is greater than the pressure that water pump works normally；If there is vacuum
System, the pressure of exit of pump when setting also being needed to close second solenoid valve；
2) PLC controller at work, performs the steps of
2.1) Open valve
At least one outlet valve opened the first regulating valve, open the first solenoid valve and export pipeline end；If there is true
Empty set system, needs to start second solenoid valve；
2.2) device starts
Successively start foam pumping system, air compressor system and water pump system；
2.3) information collection
Acquisition water pump actual flow, the actual pressure of pump outlet, air compressor system minimum pressure valve 35 export in real time
The actual pressure at place and the actual flow in foam pump exit；
2.4) it controls
2.4.1) if there is vacuum system, judgment step 2.3) whether the actual pressure of water pump collected have reached step
It is rapid 1) set by close solenoid valve when exit of pump pressure, if reached, close second solenoid valve；
2.4.2 closed-loop control) is carried out respectively to foam pump, air compressor
2.4.2.1) foam pump closed-loop control
The stream in foam pump exit is calculated according to the ratio of step 2.3) water pump actual flow collected and foam and water
Amount, acquired flow are the calculating flow in foam pump exit；
The calculating flow of foam pump is compared with the actual flow in foam pump exit, if the calculating stream of foam pump
Amount is greater than the actual flow in foam pump exit, and the revolving speed of foam pump is improved by foam pump electric machine controller；If foam pump
The actual flow for calculating flow and being less than foam pump exit in exit reduces turning for foam pump by foam pump electric machine controller
Speed；
2.4.2.2) pump capacity and pressure closed loop control
Pump capacity closed-loop control: just by the actual pressure of step 2.3) water pump collected and the water pump of step 1) setting
The pressure often to work is compared, if the actual pressure of water pump is greater than the pressure that water pump works normally, passes through pump variable frequency device
Reduce the revolving speed of water pump；If the actual pressure of water pump is less than the pressure that water pump works normally, water is improved by pump variable frequency device
The revolving speed of pump；
Water-aspirator pressure closed-loop control: by the flow of step 2.3) water pump collected and step 1) water pump setting flow into
Row compares, if the actual flow of water pump is greater than the flow of water pump setting, reduces water by reducing the aperture of the first regulating valve
Flow；
If the actual pressure of water pump is less than the flow of water pump setting, and maximum has not yet been reached in 55 aperture of the first regulating valve,
Increase water flow by increasing the aperture of the first regulating valve；
2.4.2.3) air compressor machine closed-loop control
The actual pressure in step 2.3) air compressor system minimum pressure valve collected exit and step 1) are set
The pressure in air compressor system minimum pressure valve exit is compared, if the practical pressure in press system minimum pressure valve exit
Power is greater than the setting pressure in press system minimum pressure valve exit, and the revolving speed of air compressor machine is improved by air compressor frequency converter；Such as
The actual pressure of fruit air compressor machine is less than the setting pressure of air compressor machine 32, reduces the revolving speed of air compressor machine by air compressor frequency converter.
Meanwhile based on above-mentioned fixed B class A foam A extinguishing device, it is fixed that the utility model additionally provides another
The control method of B class A foam A extinguishing device, is characterized in that, comprising the following steps:
1) following parameter is set in PLC controller:
The flow of water pump, the pressure that water pump works normally, the flow in air compressor system minimum pressure valve exit, air with
The ratio and foam of water and the ratio of water, the pressure in air compressor system minimum pressure valve exit are greater than the pressure that water pump works normally
Power；If there is vacuum system, the pressure of exit of pump when setting also being needed to close second solenoid valve；
2) PLC controller at work, performs the steps of
2.1) Open valve
At least one outlet valve opened the first regulating valve, open the first solenoid valve and export pipeline end；If there is true
Empty set system, needs to start second solenoid valve；
2.2) device starts
Successively start foam pumping system, air compressor system and water pump system；
2.3) information collection
Acquisition water pump actual flow, the actual pressure of pump outlet, air compressor system minimum pressure valve exit in real time
Actual pressure and foam pump exit actual flow；
2.4) it controls
2.4.1) if there is vacuum system, judgment step 2.3) whether the actual pressure of water pump collected have reached step
It is rapid 1) set by close solenoid valve when exit of pump pressure, if reached, close second solenoid valve；
2.4.2 closed-loop control) is carried out respectively to foam pump, air compressor
2.4.2.1) foam pump closed-loop control
The flow in foam pump exit, gained are calculated according to step 2.3) water pump actual flow collected and froth ratio
It is the calculating flow in foam pump exit to flow；
The calculating flow of foam pump is compared with the actual flow in foam pump exit, if the calculating stream of foam pump
Amount is greater than the actual flow in foam pump exit, and the revolving speed of foam pump 13 is improved by foam pump electric machine controller；If foam
The actual flow for calculating flow and being less than foam pump exit at pump discharge, reduces foam pump by foam pump electric machine controller
Revolving speed；
2.4.2.2) pump capacity and pressure closed loop control
Pump capacity closed-loop control: just by the actual pressure of step 2.3) water pump collected and the water pump of step 1) setting
The pressure often to work is compared, if the actual pressure of water pump is greater than the pressure that water pump works normally, passes through pump variable frequency device
Reduce the revolving speed of water pump；If the actual pressure of water pump is less than the pressure that water pump works normally, water is improved by pump variable frequency device
The revolving speed of pump；
Water-aspirator pressure closed-loop control: by the flow of step 2.3) water pump collected and step 1) water pump setting flow into
Row compares, if the actual flow of water pump is greater than the flow of water pump setting, reduces water by reducing the aperture of the first regulating valve
Flow；
If the actual pressure of water pump is less than the flow of water pump setting, and maximum has not yet been reached in the first control valve opening, leads to
The aperture of the first regulating valve of increase is crossed to increase water flow；
2.4.2.3) air compressor machine closed-loop control
The flow of air compressor machine, gained are calculated according to the ratio of step 2.3) water pump actual flow collected and air and water
It is the calculating flow of air compressor machine to flow；
The actual flow of air compressor machine is compared with the calculating flow of air compressor machine, if the calculating flow of air compressor machine is greater than
The actual flow of air compressor machine reduces the revolving speed of air compressor machine by air compressor frequency converter.If the calculating flow of air compressor machine is less than sky
The actual flow of press improves the revolving speed of air compressor machine by air compressor frequency converter.
Compared with prior art, beneficial effect is the utility model:
1, can be used for the fire extinguishing of liquid fire: the fixed B class A foam A extinguishing device of the utility model passes through foam pump system
The mixing of B class A foam A, water, compressed air is realized in the combination of system, water pump system, air compressor system, in the bubble that discharge outlet is formed
Foam foaming is abundant, it is not easy to form filariasis, can be used for the fire extinguishing of the liquid fires such as oils.
2, adjustable range is wide: the fixed B class A foam A extinguishing device of the utility model, water pump system, air compressor system and
Foam pumping system uses individual power drive, can not only be adjusted on a large scale to froth ratio, while can be a wide range of
Regulating water flow；So that the adjustable range of extinguishing device becomes larger, can arbitrarily be adjusted between the 20%-100% of maximum stream flow.
3, end adaptability is good: due to the utility model froth ratio, water flow while a wide range of adjustable characteristic, making it
With good end adaptability.Different places, the fire main quantity that is laid with of transformer station of different size and type can
Can be different, practical quantity of opening may also be different when different degrees of fire alarm occurs, and cause the flow of required fire water to have larger
The variation of degree, the utility model can need regimen condition to be adjusted automatically according to end, guarantee desired flow, pressure and foam ratio
Example and aqueous vapor ratio.Both it had been adapted to two-way spray head or multichannel spray head can be used.
4, the compressed air foam fire-extinguishing apparatus of the utility model can be on fire to transformer station etc. routine buildings fire-fighting system
The fire that can not be put out is put out a fire.
Detailed description of the invention
Fig. 1 is the connection structure diagram that the utility model is the fixed B class A foam A extinguishing device of embodiment；
Fig. 2 is the control structure connection figure of the utility model；
Wherein appended drawing reference are as follows: 11- bubble chamber, the first solenoid valve of 12-, 13- foam pump, 14- foam pump motor, 15- bubble
Foam pump conduit, 16- second check-valve, the second regulating valve of 17-, the water source 21-, 22- water pump, 23- third solenoid valve, 24- water pump electricity
Machine, 25- water pump main line, 31- air compressor motor, 32- air compressor machine, 33- gs-oil separator, 34- cooler, 35- minimum pressure
Valve, 36- third check-valves, 37- air compressor machine pipeline, 38- cooling water channel, 39- oil circuit, 4- export pipeline, 41- water and foams mix
Pipeline, 42- first check-valve, 43- water cannon tube outlet valve, 44- spray pipeline outlet valve, 5- power control cabinet, 51- first flow pass
Sensor, 52- first pressure sensor, 53- second flow sensor, 54- second pressure sensor, the first regulating valve of 55-, 56-
Pump variable frequency device, 57- foam pump electric machine controller, 58- air compressor frequency converter, 59-PLC controller, 61- vacuum pump, 62- second
Solenoid valve, the side 71- water outlet pipeline.
Specific embodiment
A specific embodiment of the utility model to the utility model is described in detail below in conjunction with attached drawing.
The utility model is a kind of fixed B class A foam A extinguishing device by motor drive, using B class A foam A liquid conduct
Foaming media, the B class fire that for transformer flammable liquids and gases such as on fire generate.
It is described in detail below in conjunction with the one embodiment of attached drawing to the utility model.
As shown in Figure 1, the fixed B class A foam A extinguishing device of the utility model, including foam pumping system, water pump system,
Air compressor system, export pipeline 4 and power control cabinet 5, foam pumping system are B class A foam A pumping system, including bubble chamber 11, the first electromagnetism
Valve 12, foam pump 13 and foam pump motor 14, wherein foam pump motor 14 uses servo motor；Water pump system include water source 21,
Water pump 22 and pump motor 24；Air compressor system includes air compressor motor 31 and air compressor machine component；Export pipeline 4 is from one end to another
One end is disposed with water pump connector, foam pump connector, air compressor machine connector and spray pipeline connector, foam pump connection
Export pipeline 4 between mouth and air compressor machine connector is water and foams mix pipeline 41；The main water outlet of water pump passes through water pump master
Pipeline 25 is connected to the water pump connector of export pipeline 4；The foam outlet of foam pump 13 is connected to out by foam pump conduit 15
The foam pump connector of mouth pipeline 4, the foam that foam pump 13 is sprayed mix at foam pump connector with the water from water pump；
Air compressor machine component is connected to the air compressor machine connector of export pipeline 4 by air compressor machine pipeline 37, is provided on air compressor machine pipeline 37
Minimum pressure valve 35, water mix at air compressor machine connector with the mixture of foam with the compressed air from air compressor machine component.
The spray pipeline connector of 4 end of export pipeline, which goes out, can be set water cannon tube outlet valve 43 and spray pipeline outlet valve 44.Water
Gun tube way outlet valve 43 and spray pipeline outlet valve 44 are connect with the fire main that equipment erecting bed is laid with.
When the water surface at water source 21 is lower than the arrangement height of water pump, water pump can not be pulled water out directly, therefore the utility model
It further include vacuum pump system, vacuum pump system includes vacuum pump 61 and second solenoid valve 62, and vacuum pump 61 passes through second solenoid valve
62 connect with pump entrance；The power of vacuum pump 61 is derived from pump motor 24.
Foam pump 13 has automatic flushing function, can realize automatic cleaning equipment by cleaning procedure, prevent foam solution long
Phase accumulates, and corrodes equipment.The foam pump 13 of foam pumping system is plunger pump, and there are two outlets, one to pass through safety valve for plunger pump
It returns to bubble chamber 11 or is directly communicated to the external world, another connect by check valve with the foam mixer in export pipeline 4.
Water pump further includes the first side water outlet；Air compressor machine component includes air compressor machine 32, cooler 34 and gs-oil separator 33,
Oil circuit 39 and cooling water channel 38, the import of cooling water channel 38 and the first side water outlet of water pump are provided in cooler 34 therein
Connection, the outlet of cooling water channel 38 and the water inlet of water pump connect；The entrance of oil circuit 39 and the oil circuit 39 of gs-oil separator 33 go out
Mouth connection, the outlet of oil circuit 39 are connect with 39 import of oil circuit of air compressor machine 32, and the outlet of air pressure is connect with gs-oil separator 33,
The gas circuit outlet of gs-oil separator 33 is connected to the air compressor machine connector of export pipeline 4 by air compressor machine pipeline 37.
Water pump further includes second side water outlet, and second side water outlet is connected to foam pump 13 by side water outlet pipeline 71
Entrance is provided with third solenoid valve 23 in the side water outlet pipeline 71.
Export pipeline 4, foam pump conduit 15 and air compressor machine pipeline 37 are successively respectively arranged with first check-valve 42, second stop
Valve 16 and third check-valves 36 are returned, is additionally provided with the second regulating valve 17 on foam pump conduit 15.
As shown in Fig. 2, power control cabinet 5 includes PLC controller 59, frequency converter group, foam pump electric machine controller 57；Frequency converter group
Including pump variable frequency device 56 and air compressor frequency converter 58；The extinguishing device of the utility model further includes for measuring water pump main line
The first pressure sensor 52 of the first flow sensors 51 of 25 water yields and hydraulic pressure, second be arranged on foam pump conduit 15
Flow sensor 53 and the second pressure sensor 54 that 35 exit of minimum pressure valve is set；Valve group includes setting in water and bubble
The first regulating valve 55 on foam mixed pipe line 41.PLC controller 59 includes multiple signal input parts and multiple signal output ends；
Each signal input part of PLC controller 59 is connect with each sensor in sensor group, acquires pressure signal and flow signal；PLC
One output end of controller 59 is connect with the first regulating valve 55, controls water and foams mix pipe by the first regulating valve 55 of control
The flow on road 41；One output end of PLC controller 59 is connect by pump variable frequency device 56 with pump motor 24, by controlling water
The revolving speed of pump controls the pressure of water pump；One output end of PLC controller 59 passes through foam pump electric machine controller 57 and foam
13 connection of pump, the revolving speed by controlling foam pump 13 control the flow of foam；One output end of PLC controller 59 passes through pneumatics
Machine frequency converter 58 is connect with air compressor machine component, and the revolving speed by controlling air compressor machine controls the flow of compressed air.
In addition, the power control cabinet 5 of the utility model further include touch screen, it is power supply, cooling fan, control button, alarm lamp, outer
Shell.Power supply automatically switches to backup power source when can not power using dual power supply design, main power source.Control button realization pair can be passed through
Power switch automatically switches, one-key start/stopping control manually.It can realize on the touchscreen to foam pump discharge, water pump pressure
The setting of power, pump capacity, air compressor machine pressure can individually control the valvular opening and closing of institute.Pump capacity, water pump can be observed
Outlet pressure, air compressor machine outlet pressure, foam pump discharge.Parameter preset when automatic work can be set by touch screen, it can be with
Automatic/hand mode starting device.When the flashing of system exception Times warning lamp and jingle bell.
There are two types of the control methods of the fixed B class A foam A extinguishing device of the utility model, the first the following steps are included:
1) following parameter is set in PLC controller 59:
Pressure, the pressure and bubble in 35 exit of air compressor system minimum pressure valve that flow, the water pump of water pump work normally
Foam ratio, the pressure of air compressor machine 32 are greater than the pressure that water pump works normally；If there is vacuum system, setting is also needed to close the second electricity
The pressure of exit of pump when magnet valve 62；
2) PLC controller 59 at work, performs the steps of
2.1) Open valve
It opens the first regulating valve 55, open the first solenoid valve 12 and at least one spray valve of 4 end of export pipeline；Such as
Fruit has vacuum system, needs to start second solenoid valve 62；
2.2) device starts
Successively start foam pumping system, air compressor system and water pump system；
2.3) information collection
Acquisition water pump actual flow, the actual pressure of pump outlet, air compressor system minimum pressure valve 35 export in real time
The actual flow in 13 exit of actual pressure and foam pump at place；
2.4) it controls
2.4.1) if there is vacuum system, judgment step 2.3) whether the actual pressure of water pump collected have reached step
It is rapid 1) set by close solenoid valve when exit of pump pressure, if reached, close second solenoid valve 62；
2.4.2 closed-loop control) is carried out respectively to foam pump 13, air compressor
2.4.2.1) 13 closed-loop control of foam pump
The flow in 13 exit of foam pump, institute are calculated according to step 2.3) water pump actual flow collected and froth ratio
Obtain the calculating flow that flow is 13 exit of foam pump；
The calculating flow of foam pump 13 is compared with the actual flow in 13 exit of foam pump, if foam pump 13
The actual flow that flow is greater than 13 exit of foam pump is calculated, turning for foam pump 13 is improved by foam pump electric machine controller 57
Speed；If the actual flow for calculating flow and being less than 13 exit of foam pump in 13 exit of foam pump, passes through foam pump motor control
Device 57 processed reduces the revolving speed of foam pump 13；
2.4.2.2) pump capacity and pressure closed loop control
Pump capacity closed-loop control: just by the actual pressure of step 2.3) water pump collected and the water pump of step 1) setting
The pressure often to work is compared, if the actual pressure of water pump is greater than the pressure that water pump works normally, passes through pump variable frequency device
56 reduce the revolving speed of water pump；If the actual pressure of water pump is less than the pressure that water pump works normally, mentioned by pump variable frequency device 56
The revolving speed of high water pump；
Water-aspirator pressure closed-loop control: by the flow of step 2.3) water pump collected and step 1) water pump setting flow into
Row compares, if the actual flow of water pump is greater than the flow of water pump setting, is reduced by reducing the aperture of the first regulating valve 55
Water flow；
If the actual pressure of water pump is less than the flow of water pump setting, and maximum has not yet been reached in 55 aperture of the first regulating valve,
Increase water flow by increasing the aperture of the first regulating valve 55；
2.4.2.3) 32 closed-loop control of air compressor machine
The actual pressure in step 2.3) 35 exit of air compressor system minimum pressure valve collected and step 1) are set
The pressure in 35 exit of air compressor system minimum pressure valve be compared, if 35 exit of press system minimum pressure valve
Actual pressure is greater than the setting pressure in 35 exit of press system minimum pressure valve, improves air compressor machine by air compressor frequency converter 58
32 revolving speed；If the actual pressure of air compressor machine 32 is less than the setting pressure of air compressor machine 32, reduced by air compressor frequency converter 58
The revolving speed of air compressor machine 32.
The difference of second control method and the first control method of the fixed B class A foam A extinguishing device of the utility model
It is mainly reflected in the control method of compressor.
The control method of the utility model compressor also can be used flow and be controlled: in air compressor system minimum pressure valve
Air flow meter is added in 35 outlets, is configured in PLC to the ratio of air and water, is passed through the flow rate calculation air compressor machine of water pump
32 flow.The actual flow of air compressor machine 32 is compared with the actual flow of air compressor machine 32, if the calculating of air compressor machine 32
Flow is greater than the actual flow of air compressor machine 32, and the revolving speed of air compressor machine 32 is reduced by frequency converter.If the calculating stream of air compressor machine 32
Amount is less than the actual flow of air compressor machine 32, and the revolving speed of air compressor machine is improved by air compressor frequency converter 58.The ratio of water and compressed air
Example are as follows: 1:3.
After foam solution, water, compressed air mix in export pipeline 4, input equipment erecting bed fire main, finally by
Spray system or fire monitor eject the foam of dense uniform, realize and cover to object on fire, completely cut off air, reach fire extinguishing mesh
's.
Claims (6)
1. a kind of fixed B class A foam A extinguishing device, it is characterised in that: including foam pumping system, water pump system, air compressor machine system
System, export pipeline (4) and power control cabinet (5),
The foam pumping system be B class A foam A pumping system, including bubble chamber (11), the first solenoid valve (12), foam pump (13) and
Foam pump motor (14)；
The water pump system includes water source (21), water pump (22) and pump motor (24)；
The air compressor system includes sequentially connected air compressor motor (31), air compressor machine (32) and gs-oil separator (33)；
The export pipeline (4) is disposed with water pump connector, foam pump connector, air compressor machine connection from one end to the other end
Mouth and outlet valve, the export pipeline (4) between foam pump connector and air compressor machine connector are water and foams mix pipeline (41)；
The main water outlet of the water pump (22) is connected to the water pump connector of export pipeline (4) by water pump main line (25)；
The foam outlet of the foam pump (13) is connected to the foam pump connection of export pipeline (4) by foam pump conduit (15)
Mouthful, the foam that foam pump (13) is sprayed mixes at foam pump connector with the water from water pump (22)；
The gs-oil separator (33) is connected to the air compressor machine connector of export pipeline (4) by air compressor machine pipeline (37), described
It is provided on air compressor machine pipeline (37) minimum pressure valve (35), the mixture of water and foam is empty with the compression from air compressor machine component
Gas mixes at air compressor machine connector；
The power control cabinet (5) connect with pump motor (24), foam pump motor (14) and air compressor motor (31), for water pump electricity
Machine, foam pump motor and air compressor motor.
2. fixed B class A foam A extinguishing device according to claim 1, it is characterised in that:
It further include vacuum pump system, the vacuum pump system includes vacuum pump (61) and second solenoid valve (62), the vacuum pump
(61) it is connect by second solenoid valve (62) with water pump (22) entrance；The power of the vacuum pump (61) is derived from pump motor
(24)。
3. fixed B class A foam A extinguishing device according to claim 2, it is characterised in that:
The water pump (22) further includes the first side water outlet；
The air compressor machine component further includes cooler (34), is provided with oil circuit (39) and cooling water channel in cooler (34) therein
(38), the import of cooling water channel (38) is connect with the first side water outlet of water pump (22), the outlet of cooling water channel (38) and water pump
(22) water inlet connection；The entrance of oil circuit (39) and the oil circuit (39) of gs-oil separator (33) are exported and are connected, oil circuit (39)
Outlet is connect with oil circuit (39) import of air compressor machine (32).
4. fixed B class A foam A extinguishing device according to claim 3, it is characterised in that:
The water pump (22) further includes second side water outlet, and second side water outlet is connected to by side water outlet pipeline (71)
The entrance of foam pump (13) is provided with third solenoid valve (23) on the side water outlet pipeline (71).
5. fixed B class A foam A extinguishing device according to claim 3, it is characterised in that:
The foam pump motor (14) is servo motor.
6. fixed B class A foam A extinguishing device according to any one of claims 1 to 5, it is characterised in that:
The power control cabinet (5) includes PLC controller (59), frequency converter group and foam pump electric machine controller (57)；
The frequency converter group includes pump variable frequency device (56) and air compressor frequency converter (58)；
First flow sensor (51) and first pressure sensor (52) are provided on the water pump main line (25)；
Second flow sensor (53) are provided on the foam pump conduit (15)；
Minimum pressure valve (35) exit is additionally provided with second pressure sensor (54) or third flow sensor；
The first regulating valve (55) are additionally provided on the water and foams mix pipeline (41)；
The PLC controller (59) includes multiple signal input parts and multiple signal output ends；
Each signal input part of the PLC controller (59) is connect with each sensor in sensor group, acquires pressure signal and stream
Measure signal；
One output end of the PLC controller (59) is connect with the first regulating valve (55), by controlling the first regulating valve (55)
Control the flow of foams mix pipeline (41)；
One output end of the PLC controller (59) is connect by pump variable frequency device (56) with pump motor (24), and control is passed through
The revolving speed of water pump (22) processed controls the pressure of water pump (22)；
One output end of the PLC controller (59) is connect by foam pump electric machine controller (57) with foam pump (13), is led to
Cross the flow of the revolving speed control foam of control foam pump (13)；
One output end of the PLC controller (59) is connect by air compressor frequency converter (58) with air compressor machine component, and control is passed through
The flow of the revolving speed control compressed air of air compressor machine processed.
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| CN201822044004.6U CN209564541U (en) | 2018-12-06 | 2018-12-06 | A kind of fixed B class A foam A extinguishing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021120532A1 (en) * | 2019-12-17 | 2021-06-24 | 徐工集团工程机械股份有限公司 | Foam uniform-mixing pipe, mixed foam fire extinguishing system, control method therefor, and fire fighting truck |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021120532A1 (en) * | 2019-12-17 | 2021-06-24 | 徐工集团工程机械股份有限公司 | Foam uniform-mixing pipe, mixed foam fire extinguishing system, control method therefor, and fire fighting truck |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210106 Address after: 710077 No. 78, Kam Yip Road, hi tech Zone, Shaanxi, Xi'an Patentee after: XI'AN AEROSPACE PUMPS Co.,Ltd. Address before: 710077 No. 78, Kam Yip Road, hi tech Zone, Shaanxi, Xi'an Patentee before: SHAANXI AEROSPACE POWER HIGH-TECH Co.,Ltd. |