CN116943071A - Integrated supply device for transformer fire extinguishment and debugging method thereof - Google Patents
Integrated supply device for transformer fire extinguishment and debugging method thereof Download PDFInfo
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- CN116943071A CN116943071A CN202310793365.3A CN202310793365A CN116943071A CN 116943071 A CN116943071 A CN 116943071A CN 202310793365 A CN202310793365 A CN 202310793365A CN 116943071 A CN116943071 A CN 116943071A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 251
- 239000006260 foam Substances 0.000 claims abstract description 189
- 239000007788 liquid Substances 0.000 claims abstract description 183
- 238000002156 mixing Methods 0.000 claims abstract description 36
- 238000007689 inspection Methods 0.000 claims description 18
- 238000005507 spraying Methods 0.000 claims description 14
- 238000004140 cleaning Methods 0.000 claims description 13
- 238000011010 flushing procedure Methods 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 6
- 241000282326 Felis catus Species 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000011272 standard treatment Methods 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000001629 suppression Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 238000005192 partition Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
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- 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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
-
- 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
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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 application discloses an integrated supply device for transformer fire extinguishment and a debugging method thereof, wherein the device comprises a proportional mixing unit, a foam supply unit and a water supply unit, the proportional mixing unit comprises a water turbine, a first control valve is arranged between the water supply unit and the water turbine, and a first backflow stop valve is arranged between the foam supply unit and a main fire-fighting pipeline; the water supply unit and the foam supply unit are connected and arranged in the same box body through a water turbine, the water turbine mixes water and foam liquid, leads to a main fire-fighting pipeline and ejects the foam liquid through a turbofan gun device; the foam liquid pump is driven by the water turbine, so that extra power is not needed, resources are saved, the green circulation working efficiency is improved, the double pumps are connected and arranged in the container body by the water turbine, shi Gongyun dimension is conveniently simplified, and the efficiency of equipment installation, operation, overhaul and maintenance is improved.
Description
Technical Field
The application relates to the field of fire-fighting equipment, in particular to an integrated supply device for transformer fire extinguishment and a debugging method thereof.
Background
With the upgrading of fire-fighting equipment and the continuous improvement of people's safety consciousness, the fire-fighting technology faces higher challenges, and simultaneously promotes the development of the fire-fighting equipment to a safer and more reliable direction. The existing fire-fighting equipment for a transformer substation mainly comprises a water spray water mist fire-extinguishing system and an oil and nitrogen discharging fire-extinguishing system, wherein the water spray water mist fire-extinguishing system has large water demand, and in the design of a supply system, as the occupied area of facilities is large, a container arranged by a unit for supplying water and foam liquid is basically divided into two pump rooms, the free space for additionally installing a double-pump-room supply system is difficult to find for a transformer substation site which is partially rebuilt, in addition, the investment cost of the double-pump-room supply system is relatively high, and the power units of the fire-fighting water supply pump rooms and the foam liquid supply pump rooms are required to be correspondingly arranged for providing power for pumps for large-scale functional equipment, so that the required electric energy is supplied greatly, and the cost is high.
Disclosure of Invention
The application aims to: in order to overcome the defects in the prior art, the application provides an integrated supply device for transformer fire extinguishment, the intensive mechanical pumping type proportion mixing unit is utilized to realize the accurate and stable mixing of the water in the water tank and the foam liquid in the foam liquid tank in a fixed proportion of 3 percent, the container pump house integrating the water collecting pump and the foam liquid pump changes the arrangement of the prior container with double pump houses, the occupied area of a transformer station is saved, the coupling is driven by the water turbine to drive the foam liquid pump to suck the foam liquid, the power supply is not required to be provided for the foam liquid pump, and the electric energy supply is saved.
The technical scheme is as follows: in order to achieve the above purpose, the application adopts the following technical scheme:
an integrated supply device for fire extinguishment of a transformer, wherein water output by a water supply unit is mixed with foam liquid output by a foam supply unit and then sprayed out from a mixing output unit after being mixed by a proportional mixing unit,
the proportional mixing unit comprises a water turbine, a first water inlet of the water turbine is connected with the water supply unit, a second water inlet of the water turbine is connected with the foam supply unit, a water outlet of the water turbine is connected with a main fire-fighting pipeline, and a turbofan gun device is arranged at the tail end of the main fire-fighting pipeline;
a first control valve is arranged between the water supply unit and the water turbine;
a third control valve is arranged between the water supply unit and the foam supply unit;
a first backflow check valve is arranged between the foam supply unit and the fire-fighting main pipeline;
the water supply unit and the foam supply unit are connected through a water turbine and arranged in the same pump room.
As a preferred embodiment of the present application: the foam supply unit is sequentially provided with a foam liquid tank, a second filter, a second control valve, a one-way valve and a foam liquid pump along the flow direction of the foam liquid, and the components are connected through a foam liquid pipeline;
the first outlet end of the foam liquid pump is connected with the second inlet end of the water turbine, and a coupler is arranged between the first outlet end and the second inlet end;
the second outlet end of the foam liquid pump is connected with the fire main pipeline, and an exhaust valve, a fourth control valve, a first backflow stop valve, a safety valve and a water flow switch are sequentially arranged between the second outlet end and the fire main pipeline along the flowing direction of the foam liquid;
the foam liquid tank is provided with a liquid level switch.
As a preferred embodiment of the present application: the water supply unit is provided with a water tank and a fire-fighting water pump which are connected through a water supply pipeline in sequence along the water flow direction, and a first control valve and a filter are arranged between the water tank and the fire-fighting water pump.
As a preferred embodiment of the present application: the first control valve is an electric butterfly valve;
the second control valve is a ball valve;
the third control valve and the fourth control valve are electric three-way ball valves.
As a preferred embodiment of the present application: a liquid level meter and an overflow alarm device are arranged in the water tank and are in signal connection with the control unit; the bottom of the water tank is provided with an insulating layer, and the side wall of the water tank is provided with a manhole, a cat ladder and a lock.
As a preferred embodiment of the present application: the inside of the water turbine is of a fixed volume rotor structure, and the volume of flowing water flowing through the water turbine in one circle is a fixed value V1;
the foam liquid pump adopts a plunger pump, so that the volume of foam liquid output by the plunger pump after one rotation is a fixed value V2;
the water turbine is connected with the foam liquid pump through a coupler, so that the rotating speeds of the water turbine and the foam liquid pump are synchronous, and v1:v2=97:3.
On the other hand, the debugging method of the integrated supply device for transformer fire extinguishment comprises the following steps:
step A, starting a fire pump, and conveying water to a pipe network;
step B, the fire water flows to a proportional mixing unit to drive a water turbine to rotate, and a foam liquid pump is driven to work through a coupler to check whether the operation is continuous and stable and no blocking and stopping exist;
step C, a third control valve of the foam liquid pump inlet is conducted from the fire-fighting water supply pipeline to the foam liquid pump, and fire-fighting water sucked into the water inlet pipe by the foam liquid pump is injected into the fire-fighting main pipeline;
step D, starting a third control valve to conduct the foam liquid storage tank to the foam liquid pump, and sucking the foam liquid into the foam liquid pump and injecting the foam liquid into the fire main pipeline under pressure; opening an exhaust valve, resetting a third control valve when foam liquid is observed to flow out, and conducting a fire-fighting water supply pipeline to a foam liquid pump;
e, after the foam liquid pump and the foam liquid in the pipeline are washed out by the fire water, the fire water pump is turned off, and the system is reset;
step F, adding a patrol control cabinet, and setting self-patrol for the water supply unit and the foam supply unit; the control system and the program for distributing and controlling the internal structure are provided with a debugging water return valve, and fire water can be returned into the water tank during debugging;
and G, setting a self-cleaning function control cabinet, enabling fire water in the pipeline to enter a foam supply unit, and flushing to remove foam liquid in the pipeline.
As a preferred embodiment of the present application: the self-inspection in the step F specifically comprises the following steps:
step F1, connecting a return pipe to the water tank by the inspection equipment: the method comprises the steps of fire-fighting water pump inspection and proportional mixer inspection;
f2, when the fire-fighting water pumps are inspected, starting the fire-fighting water pumps at power frequency, directly returning the fire-fighting water to the water tank without passing through the proportional mixer, wherein the starting time of the fire-fighting water pumps is not less than 2 minutes, inspecting each fire-fighting water pump one by one, and checking whether the fire-fighting water pumps can normally operate;
and F3, when the proportional mixing unit is used for inspection, closing a valve between the water tank and the water turbine, opening a valve at the front end of the proportional mixer, keeping the position of a flushing pipeline by the electric three-way ball valve, starting a fire pump, operating the proportional mixing unit, and checking that a signal of the feedback device is normal, so that the system is indicated to be in normal operation.
As a preferred embodiment of the present application: the self-cleaning in the step G specifically comprises the following steps:
closing the valve group of the turbofan gun spraying device, closing the valve group of the foam liquid pump, only opening the valve of the water supply pump group, opening the electric ball valve through the setting pipeline after the control button is opened, accessing the tail water discharge pipeline, and directly discharging the flushing liquid after standard treatment into a rain water channel.
As a preferred embodiment of the present application: the method for starting the foam liquid supply unit comprises the following steps:
after receiving the fire alarm signal, the fire pump is controlled to start, and meanwhile, the third control valve is enabled to act by outputting current, so that a foam liquid pipeline is conducted;
manually starting, namely, remotely pressing a control button, outputting current to enable a third control valve to act, and conducting a foam liquid pipeline;
and (3) mechanical emergency starting, namely when the automatic starting and the manual starting are failed, rotating an operating handle of the third control valve on site to conduct the foam liquid pipeline.
Compared with the prior art, the application has the following beneficial effects:
1. the integrated container pump house changes the arrangement of the prior double-pump house container, the whole main body part of the device can be enclosed in the container through one box body, the power can be directly provided for a foam liquid supply system through the connection of water turbine parts, the setting of the power part can be omitted, the occupied area of a transformer substation site is saved, shi Gongyun dimension is convenient to simplify, and the efficiency of equipment installation, operation, overhaul and maintenance is improved.
2. According to the integrated supply system, when the fire water flows through the proportional mixing unit, the hydraulic turbine is driven to rotate under the action of hydraulic power. The hydraulic turbine outputs the rotation torque to the foam liquid pump and drives the foam liquid pump to operate. The foam liquid pump absorbs the foam liquid in the normal pressure storage tank and pressurizes and injects the foam liquid into the fire water main pipeline, and in the whole working process, no extra power supply or diesel engine power is needed to be provided for the foam pump, so that resources are saved, and the green circulation working efficiency is improved.
3. The inside of the water turbine is a fixed volume rotor structure, and the volume of water flowing through the water turbine in one revolution is a fixed value V1. The foam liquid pump adopts a plunger pump, is a volumetric pump, and outputs the volume of foam liquid for a circle as a fixed value V2. The hydraulic turbine is connected with the foam liquid pump through a coupler, so that the rotation speed synchronization of the hydraulic turbine and the foam liquid pump is ensured, and in theory, V1 and V2 are equal to constant values. Through the optimized design of the internal cavity structure, the V1:V2=97:3, and the requirement of the mixing ratio between 3% and 3.3% is met through testing, so that the fire extinguishing effect is better.
4. The debugging method ensures the operation stability of the device, checks the device before use, ensures the integrity of the device during use, and prevents the risk that the transformer cannot extinguish fire in time due to abnormal operation of the device, thereby causing huge loss.
Drawings
FIG. 1 is a workflow diagram of the present application;
fig. 2 is a schematic diagram of the mixing principle of the proportioning device of the supply system.
The device is characterized by comprising the following components of a first control valve 1, a filter 2, a water turbine 3, a coupling 4, a foam liquid pump 5, a third control valve 6, an exhaust ball valve 7, a fourth control valve 8, a first backflow stop valve 9, a safety valve 10, a water flow switch 11, a ball valve 12, a foam liquid storage tank 13, a filter 14, a second control valve 15, a one-way valve 16, a liquid level switch 17, a fire water pump 18, a fire water supply pipeline 19, a fire main pipeline 20, a drainage pipeline 21, a turbofan gun spraying device 22, a second backflow stop valve 23, a power supply 24, a pump set control cabinet 25 and a power cable 26.
Detailed Description
The present application is further illustrated in the accompanying drawings and detailed description which are to be understood as being merely illustrative of the application and not limiting of its scope, and various equivalent modifications to the application will fall within the scope of the application as defined in the appended claims after reading the application.
An integrated supply device for fire extinguishment of a transformer, wherein water output by a water supply unit is mixed with foam liquid output by a foam supply unit and then sprayed out from a mixing output unit after being mixed by a proportional mixing unit,
the water supply unit is sequentially provided with a water tank, a fire pump 18 and a water turbine 3 which are connected through a water supply pipeline along the water flow direction;
the foam supply unit is sequentially provided with a foam liquid tank, a foam liquid pump 5 and a first backflow check valve 9 which are connected through a foam liquid pipeline along the foam liquid flowing direction;
the water supply unit is connected with a first water inlet of the water turbine 3, the foam supply unit is connected with a second water inlet of the water turbine 3, a water outlet of the water turbine 3 is connected with a main fire-fighting pipeline 20, and a turbofan device is arranged at the tail end of the main fire-fighting pipeline 20;
a first control valve 1 is arranged between the fire pump 18 and the water turbine 3;
a second filter 14, a second control valve 15 and a one-way valve 16 are sequentially arranged between the foam liquid tank and the foam liquid pump 5 along the flow direction of the foam liquid;
the first outlet end of the foam liquid pump 5 is connected with the water turbine 3, and a coupling 4 is arranged between the first outlet end and the water turbine 3;
a third control valve 6 connected with the foam liquid pump 5 through a control unit signal is arranged between the one-way valve 16 and the foam liquid pump 5, a first inlet end of the third control valve 6 is connected with the one-way valve 16, a second inlet end of the third control valve is connected with an outlet end of the first control valve 1, and an outlet end of the third control valve is connected with an inlet end of the foam liquid pump 5;
the water supply unit and the foam supply unit are connected and arranged in the same box body through a water turbine 3.
Preferably: the second outlet end of the foam liquid pump 5 is provided with an exhaust ball valve 7, a fourth control valve 8, a first backflow stop valve 9, a safety valve 10 and a water flow switch 11 along the liquid flow direction; the foam liquid tank is also provided with a liquid level switch 17.
Preferably: the first control valve 1 is an electric butterfly valve.
Preferably: the second control valve 15 is a ball valve 12
Preferably: the third control valve 6 is a first electric three-way ball valve 12, and the fourth control valve 8 is a second electric three-way ball valve 12.
Example 1
As shown in fig. 1, which is a schematic diagram of an integrated supply device for fire extinguishing of a transformer, water outputted from a water supply unit is mixed with foam liquid outputted from a foam supply unit, and then is sprayed from a mixing output unit after being mixed by a proportional mixing unit,
the water supply unit is sequentially provided with a water tank, a fire pump 18 and a water turbine 3 which are connected through a water supply pipeline along the water flow direction;
the foam supply unit is sequentially provided with a foam liquid tank, a foam liquid pump 5 and a first backflow check valve 9 which are connected through a foam liquid pipeline along the foam liquid flowing direction;
the water supply unit is connected with a first water inlet of the water turbine 3, the foam supply unit is connected with a second water inlet of the water turbine 3, a water outlet of the water turbine 3 is connected with the fire-fighting main pipeline 20, the fire-fighting main pipeline 20 is sprayed out through a turbofan gun device arranged at the tail end of the fire-fighting main pipeline 20, and a second backflow check valve 23 is arranged at the tail end of the fire-fighting main pipeline 20. And spraying the mixed liquid mixed according to the proportion by a plurality of turbofan gun tail end spraying devices.
Fig. 2 shows the principle of the apparatus for proportional mixing and cleaning in the integrated supply system;
an electric butterfly valve is arranged between the fire water pump 18 and the water turbine 3; a second filter 14, a ball valve 12 and a one-way valve 16 are sequentially arranged between the foam liquid tank and the foam liquid pump 5 along the flow direction of the foam liquid; the first outlet end of the foam liquid pump 5 is connected with the water turbine 3, and a coupling 4 is arranged between the first outlet end and the water turbine 3.
An electric three-way ball valve 12 in signal connection with the foam liquid pump 5 through a control unit is arranged between the one-way valve 16 and the foam liquid pump 5, a first inlet end of the electric three-way ball valve 12 is connected with the one-way valve 16, an outlet end of the electric three-way ball valve 12 is connected with an inlet end of the foam liquid pump 5, and a second inlet end of the electric three-way ball valve 12 is connected with an outlet end of the electric butterfly valve;
the second outlet end of the foam liquid pump 5 is provided with an exhaust ball valve 7, a three-way ball valve 12, a first backflow stop valve 9, a safety valve 10 and a water flow switch 11 along the liquid flow direction;
the foam liquid tank is also provided with a liquid level switch 17, and the electric butterfly valve, the electric three-way ball valve 12, the liquid level switch 17 and the water flow switch 11 are all connected with a control unit through signals.
The water tank is internally provided with a liquid level meter and an overflow alarm device which are connected with the control unit in a signal way.
The inside of the water turbine 3 is provided with a fixed volume rotor structure, and the volume of flowing water flowing through the water turbine in one circle is a fixed value V1;
the foam liquid pump 5 adopts a plunger pump, so that the volume of foam liquid output by one rotation of the plunger pump is a fixed value V2;
the water turbine 3 is connected with the foam liquid pump 5 through a coupler 4, so that the rotating speeds of the two are synchronous, and the ratio of V1 to V2=97:3 is achieved.
The bottom of the water tank is provided with an insulating layer, and the side wall of the water tank is provided with a manhole, a cat ladder and a lock.
The whole system is used for fire extinguishment of a transformer substation, and can realize accurate fixed-ratio spraying of fire extinguishing medium; the water tank is positioned outside the container of the integrated supply system, and supplies water source supply for the whole fire extinguishing system. The fire-fighting water tank is characterized in that the fire-fighting water tank is connected with the integrated supply system container through a fire-fighting pipeline, the tank body material adopts a stainless steel welding structure, and the bottom of the fire-fighting water tank is reliably connected with the water tank foundation through channel steel by bolts. The water tank is provided with a liquid level meter for observing the liquid level on the spot, the water tank is provided with a water level monitor and an overflow alarm device, a signal is connected into a control room, the overground part of a water tank pipeline is added with heat preservation measures, and a lock is arranged on a manhole and a cat ladder of the water tank.
The proportional mixing unit mainly comprises a water turbine 3, a shaft coupling 4, a pipeline valve and the like, the mixing device is arranged between a fire-fighting water pump 1818 and a fire-fighting main pipeline 2020 in the foam fire-extinguishing system, wherein the water turbine 33 and the foam liquid pump 55 are connected through the shaft coupling 44, a safety backflow stop valve is arranged in the middle, and the mixing device is fixed on a profile steel bottom pry to realize integral transportation and installation. The control pipeline adopts stainless steel seamless steel pipes, and accessories such as valves and the like are made of stainless steel corrosion-resistant materials.
The proportional mixing unit is a flow balance type proportional mixing unit. The fire water flowing in the pipeline is used as driving force, and the foam liquid pump 55 is driven by the hydraulic turbine 33 to pump the foam liquid in the foam liquid tank 13 into the fire main pipeline 2020. By matching the structural parameters in the hydraulic turbine 33 and the foam liquid pump 55, the flow of water and the flow of foam liquid are balanced, and the mixing in a fixed proportion is realized. The volume is small, the occupied area is small, the mixing ratio control is accurate, and the external power supply 24 or a diesel engine is not required;
the pump group control cabinet 25 is mainly connected with the fire pump 18 through the power supply 24, and provides electric power supply for the fire pump 18 to drive the fire pump 18 to absorb water in the water tank, so that the function of controlling the fire pump 18 to be started and stopped is achieved.
The partition control valve arranged on the turbofan gun device controls the opening and closing of the turbofan gun spraying device 22 to spray, the partition control valve is made of stainless steel corrosion-resistant materials, and the second backflow stop valve 2323 is used for controlling the pipeline to discharge residual foam mixed liquid of the pipeline through the drainage pipeline 2121 when the pipeline is flushed.
The electric supply unit mainly comprises a power supply 24, a pump set control cabinet 25 and an electric power cable 26
The workflow of the present embodiment:
when mixed water and foam liquid are subjected to fire extinguishing spraying, water is extracted from a water tank through a fire-fighting water pump 18, the water enters a fire-fighting water supply pipeline 19, the water enters a water turbine 3 and drives a coupling 4 to provide power for a foam liquid pump 5, the foam liquid pump 5 pumps the foam liquid out of the foam liquid tank, the foam liquid sequentially flows through a second filter 142, a ball valve 12, a one-way valve 16, a first electric three-way ball valve 12 and the foam liquid pump 5, at the moment, the second electric three-way ball valve 12 is closed, the foam liquid pump 5 only discharges the foam liquid from a first outlet end to the water turbine 3 for mixing, the mixed water of the water turbine 3 discharges the mixed liquid into a fire-fighting main pipeline 20, and the mixed liquid is ejected from a turbofan gun. When the water supply of the fire pump 18 flows through the proportional mixing unit, the water turbine 3 is driven to rotate under the action of hydraulic power. The hydraulic turbine 3 outputs rotational torque to the foam liquid pump 5 and operates. The foam liquid pump 5 sucks the foam liquid in the normal pressure storage tank, and pressurizes and injects the foam liquid into the fire water main pipeline, so that the foam liquid is mixed in a fixed proportion and output to the tail end spraying device.
When the device needs to be cleaned after fire extinguishment is finished, water is pumped from a water tank through a fire-fighting water pump 18, at the moment, a first inlet end of a first electric three-way ball valve 12 is opened, a first outlet end of a foam liquid pump 5 is closed, the water sequentially passes through the first electric three-way ball valve 12, the foam liquid pump 5, a second electric three-way ball valve 12, a first backflow stop valve 9, a safety valve 10 and a water flow switch 11, and finally is merged into a fire-fighting main pipeline 20 connected with an outlet end of a water turbine 3, and cleaning liquid is discharged through a drainage pipeline 21; the other water in the passage passes through the first electric three-way ball valve 12, the one-way valve 16 and the ball valve 12 in sequence, and the ball valve 12 is provided with a liquid discharge end for discharging the cleaning liquid.
The main processes of the self-cleaning function and the self-inspection function of the control supply system by arranging the tail end spraying valve and the reflux stop valve are as follows:
(1) Self-inspection of a supply system
The inspection control cabinet is added, a control system and a program for controlling the internal structure achieve the purpose of self-inspection, a debugging return valve is arranged on the device, and fire water can be returned to the water tank during debugging. The specific implementation method comprises the following steps:
the inspection equipment should connect the return pipe to the water tank: the method is divided into inspection of the fire pump 18 and inspection of the proportional mixer.
1) When the fire pump 18 is inspected, the fire pump 18 is started at power frequency, fire water is directly returned to the water tank without passing through the proportional mixer, the starting time of the fire pump 18 is not less than 2 minutes, each fire pump 18 is inspected one by one, and whether the fire pump 18 can normally run is mainly checked.
2) When the proportional mixing unit is used for inspection, the valve of the direct water return tank is closed, and the valve at the front end of the proportional mixer is opened. The electric three-way ball valve 12 keeps the position of the flushing pipeline, a fire pump 18 is started, the proportional mixing unit operates, and the normal signal of the feedback device is checked to indicate that the system operates normally.
(2) Self-cleaning embodiment of the feed system:
optimizing the internal structure layout, setting control program and logic, and having one-key starting function of self-cleaning mode, so that the self-cleaning pipeline and supply system can be automatically cleaned before and after working, and the safe and stable operation of the system is ensured. The fire water in the pipeline enters the foam liquid pump 5, and is washed for 5min to remove foam liquid in the pipeline, so that the residual foam liquid is prevented from corroding the pump and pipeline valves.
The automatic cleaning function control cabinet is arranged, the automatic cleaning function is started, foam residues in a fire-proof pipeline are washed, the valve group of the turbofan gun spraying device 22 is closed, the valve group of the foam liquid supply pump 5 is closed, only the valve of the water supply pump group is opened, after the control button is opened, the valve is opened through the electric ball valve 12 provided with the pipeline, the valve is connected to a tail water discharge pipeline, and flushing liquid after standard treatment can be directly discharged into a rain water channel.
The fire extinguishing apparatus supply system in this embodiment is started in the following manner:
in application, the electric three-way ball valve 12 is operated to conduct the foam liquid supply pipeline. The emergency starting device is provided with three starting modes of automatic, manual and mechanical emergency.
The automatic starting method comprises the following steps: when receiving the fire alarm signal and starting the fire pump 18, outputting current to enable the electric three-way ball valve 12 to act and conduct a foam liquid pipeline;
the manual starting method comprises the following steps: pressing a remote manual starting button to output current to the electric three-way ball valve 12 for action;
the mechanical emergency starting method comprises the following steps: in the event of failure of the two methods, the operating handle of the electric ball valve 12 is turned on site to conduct the foam liquid pipeline.
The debugging method of the fire extinguishing device in the embodiment comprises the following steps:
before debugging, equipment is ensured to be installed in place, the pipeline connection is complete and reliable, the fire pump 18 supplies power normally, the fire pool liquid level is normal, and the system is in a quasi-working state.
Step 1, starting a fire pump 18 to deliver water to a pipe network;
step 2, the fire water flows to a proportional mixing unit to drive a water turbine 3 to rotate, and a foam liquid pump 5 is driven to work through a coupler 4 to check whether the operation is continuous and stable and no blocking and stopping exist;
step 3, at the moment, a first electric three-way ball valve 12 at the inlet of the foam liquid pump 5 is communicated from a fire-fighting water supply pipeline 19 to the foam liquid pump 5", and fire-fighting water sucked into a water inlet pipe by the foam liquid pump 5 is injected into a fire-fighting main pipeline 20;
step 4, the first electric three-way ball valve 12 is operated in an automatic, manual and mechanical emergency starting mode, the electric three-way ball valve 12 conducts the foam liquid storage tank 13 to the foam liquid pump 5 at the moment, and foam liquid is sucked into the foam liquid pump 5 at the moment and is injected into the fire main pipeline 20 under pressure; opening an exhaust valve, observing that foam liquid flows out, and resetting the first electric three-way ball valve 12 to conduct the fire-fighting water supply pipeline 19 to the foam liquid pump 5;
and 5, after the foam liquid pump 5 and the foam liquid in the pipeline are washed out by the fire-fighting water, the fire-fighting water pump 18 is turned off, and the system is reset.
The foam mixed liquid with fixed proportion can realize the start and stop of the turbofan gun terminal spraying device and the spraying quantity through the control of the partition valve, the spraying of the turbofan gun with accurate positioning can be realized through the opening and closing of the partition control valve group, the laying and the use of the fire-fighting pipeline are saved, and the redundant design of the fire-fighting pipeline laying is avoided.
The foregoing is only a preferred embodiment of the application, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present application, and such modifications and adaptations are intended to be comprehended within the scope of the application.
Claims (10)
1. An integrated supply device for fire extinguishment of a transformer, wherein water output by a water supply unit is mixed with foam liquid output by a foam supply unit and then sprayed out from a mixing output unit after being mixed by a proportional mixing unit,
the device is characterized in that the proportional mixing unit comprises a water turbine, a first water inlet of the water turbine is connected with the water supply unit, a second water inlet of the water turbine is connected with the foam supply unit, a water outlet of the water turbine is connected with a main fire-fighting pipeline, and a turbofan gun device is arranged at the tail end of the main fire-fighting pipeline;
a first control valve is arranged between the water supply unit and the water turbine;
a third control valve is arranged between the water supply unit and the foam supply unit;
a first backflow check valve is arranged between the foam supply unit and the fire-fighting main pipeline;
the water supply unit and the foam supply unit are connected through a water turbine and arranged in the same pump room.
2. The integrated supply device for fire extinguishment of a transformer according to claim 1, wherein the foam supply unit is provided with a foam liquid tank, a second filter, a second control valve, a check valve and a foam liquid pump in sequence along the flow direction of the foam liquid;
the first outlet end of the foam liquid pump is connected with the second inlet end of the water turbine, and a coupler is arranged between the first outlet end and the second inlet end;
the second outlet end of the foam liquid pump is connected with the fire main pipeline, and an exhaust valve, a fourth control valve, a first backflow stop valve, a safety valve and a water flow switch are sequentially arranged between the second outlet end and the fire main pipeline along the flowing direction of the foam liquid;
the foam liquid tank is provided with a liquid level switch.
3. The integrated supply device for fire extinguishment of a transformer according to claim 2, wherein the water supply unit is sequentially provided with a water tank and a fire pump connected through a water supply pipeline along the water flow direction, and a first control valve and a filter are arranged between the water tank and the fire pump.
4. An integrated supply for fire suppression of transformers according to claim 3, characterized in that said first control valve is an electric butterfly valve;
the second control valve is a ball valve;
the third control valve and the fourth control valve are electric three-way ball valves.
5. The integrated supply device for fire extinguishment of a transformer according to claim 4, wherein a liquid level meter and an overflow alarm device are arranged in the water tank and are in signal connection with the control unit; the bottom of the water tank is provided with an insulating layer, and the side wall of the water tank is provided with a manhole, a cat ladder and a lock.
6. The integrated supply device for fire extinguishment of a transformer according to claim 1, wherein the inside of the water turbine is of a fixed volume rotor structure, and the volume of water flowing through the water turbine for one revolution is a fixed value V1;
the foam liquid pump adopts a plunger pump, so that the volume of foam liquid output by the plunger pump after one rotation is a fixed value V2;
the water turbine is connected with the foam liquid pump through a coupler, so that the rotating speeds of the water turbine and the foam liquid pump are synchronous, and v1:v2=97:3.
7. A method for commissioning an integrated supply device for fire fighting of transformers according to any one of claims 2-6, comprising the steps of:
step A, starting a fire pump, and conveying water to a pipe network;
step B, the fire water flows to a proportional mixing unit to drive a water turbine to rotate, and a foam liquid pump is driven to work through a coupler to check whether the operation is continuous and stable and no blocking and stopping exist;
step C, a third control valve of the foam liquid pump inlet is conducted from the fire-fighting water supply pipeline to the foam liquid pump, and fire-fighting water sucked into the water inlet pipe by the foam liquid pump is injected into the fire-fighting main pipeline;
step D, starting a third control valve to conduct the foam liquid storage tank to the foam liquid pump, and sucking the foam liquid into the foam liquid pump and injecting the foam liquid into the fire main pipeline under pressure; opening an exhaust valve, resetting a third control valve when foam liquid is observed to flow out, and conducting a fire-fighting water supply pipeline to a foam liquid pump;
e, after the foam liquid pump and the foam liquid in the pipeline are washed out by the fire water, the fire water pump is turned off, and the system is reset;
step F, adding a patrol control cabinet, and setting self-patrol for the water supply unit and the foam supply unit; the control system and the program for distributing and controlling the internal structure are provided with a debugging water return valve, and fire water can be returned into the water tank during debugging;
and G, setting a self-cleaning function control cabinet, enabling fire water in the pipeline to enter a foam supply unit, and flushing to remove foam liquid in the pipeline.
8. The debugging method of the integrated supply device for fire extinguishing of a transformer according to claim 7, wherein the self-inspection in the step F specifically includes:
step F1, connecting a return pipe to the water tank by the inspection equipment: the method comprises the steps of fire-fighting water pump inspection and proportional mixer inspection;
f2, when the fire-fighting water pumps are inspected, starting the fire-fighting water pumps at power frequency, directly returning the fire-fighting water to the water tank without passing through the proportional mixer, wherein the starting time of the fire-fighting water pumps is not less than 2 minutes, inspecting each fire-fighting water pump one by one, and checking whether the fire-fighting water pumps can normally operate;
and F3, when the proportional mixing unit is used for inspection, closing a valve between the water tank and the water turbine, opening a valve at the front end of the proportional mixer, keeping the position of a flushing pipeline by the electric three-way ball valve, starting a fire pump, operating the proportional mixing unit, and checking that a signal of the feedback device is normal, so that the system is indicated to be in normal operation.
9. The method for debugging an integrated supply device for fire extinguishing of a transformer according to claim 7, wherein the self-cleaning in step G specifically comprises:
closing the valve group of the turbofan gun spraying device, closing the valve group of the foam liquid pump, only opening the valve of the water supply pump group, opening the electric ball valve through the setting pipeline after the control button is opened, accessing the tail water discharge pipeline, and directly discharging the flushing liquid after standard treatment into a rain water channel.
10. The debugging method of an integrated supply device for fire extinguishing of a transformer according to claim 7, wherein the starting method of the foam liquid supply unit comprises:
after receiving the fire alarm signal, the fire pump is controlled to start, and meanwhile, the third control valve is enabled to act by outputting current, so that a foam liquid pipeline is conducted;
manually starting, namely, remotely pressing a control button, outputting current to enable a third control valve to act, and conducting a foam liquid pipeline;
and (3) mechanical emergency starting, namely when the automatic starting and the manual starting are failed, rotating an operating handle of the third control valve on site to conduct the foam liquid pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310793365.3A CN116943071A (en) | 2023-06-30 | 2023-06-30 | Integrated supply device for transformer fire extinguishment and debugging method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310793365.3A CN116943071A (en) | 2023-06-30 | 2023-06-30 | Integrated supply device for transformer fire extinguishment and debugging method thereof |
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| CN116943071A true CN116943071A (en) | 2023-10-27 |
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| CN202310793365.3A Pending CN116943071A (en) | 2023-06-30 | 2023-06-30 | Integrated supply device for transformer fire extinguishment and debugging method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117244200A (en) * | 2023-11-13 | 2023-12-19 | 河南省威特消防设备有限公司 | Integrated foam liquid mixing and supplying equipment |
| CN117563180A (en) * | 2024-01-17 | 2024-02-20 | 河南省威特消防设备有限公司 | Slide formula foam liquid pump and have fire control foam liquid system of this pump |
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2023
- 2023-06-30 CN CN202310793365.3A patent/CN116943071A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117244200A (en) * | 2023-11-13 | 2023-12-19 | 河南省威特消防设备有限公司 | Integrated foam liquid mixing and supplying equipment |
| CN117563180A (en) * | 2024-01-17 | 2024-02-20 | 河南省威特消防设备有限公司 | Slide formula foam liquid pump and have fire control foam liquid system of this pump |
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