CN108869119B - Impact suffocation energy-saving flame extinguishing device and control method - Google Patents
Impact suffocation energy-saving flame extinguishing device and control method Download PDFInfo
- Publication number
- CN108869119B CN108869119B CN201810554534.7A CN201810554534A CN108869119B CN 108869119 B CN108869119 B CN 108869119B CN 201810554534 A CN201810554534 A CN 201810554534A CN 108869119 B CN108869119 B CN 108869119B
- Authority
- CN
- China
- Prior art keywords
- explosion
- proof
- water
- valve
- port
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
- F02M35/10275—Means to avoid a change in direction of incoming fluid, e.g. all intake ducts diverging from plenum chamber at acute angles; Check valves; Flame arrestors for backfire prevention
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention provides an impact suffocation energy-saving flame extinguishing device and a control method, belonging to the technical field of engine intake flame extinguishing, and comprising a shell, a water mist spray head, an integrated control device, an explosion-proof water pump, a low-pressure main pipe, a high-pressure main pipe and a water tank; an air inlet cavity, a flame extinguishing cavity, a water mist cooling cavity and an air outlet cavity are arranged in the shell; the water spray nozzle is arranged in the flame extinguishing cavity, and the water pressure at the water spray nozzle is at least 1 MPa; the integrated control device comprises an oxygen concentration sensor, a temperature sensor, a controller, an explosion-proof power source connected with an explosion-proof water pump, an explosion-proof electromagnetic directional valve, an explosion-proof electric proportional pressure reducing valve, an explosion-proof electric proportional flow valve and a pressure compensation valve. The device and the control method can improve the flame extinguishing efficiency, do not influence the ventilation quantity of the air intake of the engine, and can play a role in precipitating and filtering solid particles carried by the air intake in a severe working environment.
Description
Technical Field
The invention relates to the technical field of engine intake flame extinction, in particular to an impact suffocation energy-saving flame extinction device and a control method.
Background
The explosion-proof rubber-tyred vehicle is the main equipment for trackless auxiliary transportation in the underground coal mine at present, and the main power source of the explosion-proof rubber-tyred vehicle is an explosion-proof diesel engine. At present, most of flame barriers of the air inlet system of the domestic explosion-proof diesel engine adopt plate-type or net-type flame arresters made of metal materials, and the structure of the flame arrester is simple but has a lot of problems: 1. the metal mesh flame arrestor has limited ability to extinguish flames; 2. in a severe working environment, air containing a small amount of solid particles is easy to cause the blockage of the metal plate type or net type flame arrester; 3. the metal plate type or net type flame arrester has poor ventilation capability, and easily causes insufficient air inflow, thereby causing severe combustion environment and insufficient power of an engine.
Disclosure of Invention
The invention aims to provide an impact suffocation energy-saving flame extinguishing device and a control method, which not only improve the flame extinguishing efficiency, but also do not influence the ventilation of the air intake of an engine, and can play a role in precipitating and filtering solid particles carried in the air intake in a severe working environment.
In order to achieve the aim, the invention provides an impact suffocation energy-saving flame extinguishing device which comprises a shell, a water mist spray head, an integrated control device, an explosion-proof water pump, a low-pressure main pipe, a high-pressure main pipe and a water tank, wherein the shell is provided with a water mist spray head; an air inlet cavity communicated with air, a flame extinguishing cavity communicated with the air inlet cavity, a water mist cooling cavity communicated with the flame extinguishing cavity and an air outlet cavity communicated with the water mist cooling cavity are arranged in the shell; the water spray nozzle is arranged in the flame extinguishing cavity, and the water pressure at the water spray nozzle is at least 1 MPa; the integrated control device comprises an oxygen concentration sensor for detecting the oxygen concentration in the flame extinguishing cavity, a temperature sensor for detecting the temperature in the flame extinguishing cavity, a controller respectively electrically connected with the oxygen concentration sensor and the temperature sensor, an explosion-proof power source connected with the explosion-proof water pump, an explosion-proof electromagnetic directional valve, an explosion-proof electric proportional pressure reducing valve, an explosion-proof electric proportional flow valve and a pressure compensation valve; the water inlet of the explosion-proof water pump is connected with the water tank through a low-pressure main pipe, and the water outlet of the explosion-proof water pump is connected with a P port of the explosion-proof electromagnetic directional valve through a high-pressure main pipe; the explosion-proof electromagnetic directional valve is electrically connected with the controller, the port A is communicated with the water tank, and the port B is connected with the port 2 of the explosion-proof electric proportional pressure reducing valve; the explosion-proof electric proportional flow valve is electrically connected with the controller, the port P is connected with the port 1 of the explosion-proof electric proportional pressure reducing valve, and the port A is connected with the port P of the pressure compensating valve; the pressure compensation valve is electrically connected with the controller, and the port A is connected with the water mist spray head.
Further, the flame extinguishing cavity comprises a suffocation cavity, a front blocking cavity communicated with an air inlet cavity and an air inlet of the suffocation cavity, and a rear blocking cavity communicated with an air outlet of the water mist cooling cavity and an air outlet of the suffocation cavity; the water mist spray head is arranged in the suffocation cavity.
Further, a transition cavity is arranged between the water mist cooling cavity and the air outlet cavity.
Furthermore, a drainage plate is arranged in the air inlet cavity; and/or
The preposed blocking cavity, the postposed blocking cavity, the water mist cooling cavity and the transition cavity are all provided with drainage bent plates.
Further, the impact suffocation energy-saving flame extinguishing device also comprises a cooling device; a water collecting cavity communicated with the water mist cooling cavity is arranged below the water mist cooling cavity; the water inlet of the cooling device is connected with the water collecting cavity, and the water outlet of the cooling device is connected with the water tank.
Further, a filter is arranged on the low-pressure manifold.
Further, a check valve is arranged on the high-pressure main pipe.
Furthermore, an explosion-proof water pump, a filter, a low-pressure main pipe, a one-way valve, an explosion-proof electromagnetic directional valve, an explosion-proof electric proportional pressure reducing valve, an explosion-proof electric proportional flow valve and a pressure compensation valve are waterway channels; the number of the waterway channels is multiple; the number of the water mist spray heads is the same as that of the waterway channels, and each water mist spray head is connected with the A ports of the pressure compensation valves in the waterway channels through the high-pressure branch pipes.
Further, the shell is formed by welding stainless steel plates; the water mist spray head is a stainless steel water mist spray head.
The invention also provides a control method of the impact suffocation energy-saving flame extinguishing device, which is implemented on the basis of the impact suffocation energy-saving flame extinguishing device and comprises the following steps:
s1, detecting the oxygen concentration and temperature in the flame extinguishing cavity;
s2, if the detected values of the oxygen concentration and the temperature are both within the preset range, the controller does not output electric signals to the explosion-proof electromagnetic directional valve, the explosion-proof electric proportional pressure reducing valve, the explosion-proof electric proportional flow valve and the pressure compensation valve; the port P of the explosion-proof electromagnetic directional valve is communicated with the port A, and water provided by the explosion-proof water pump flows back to the water tank through the port P and the port A of the explosion-proof electromagnetic directional valve;
s3, if the detected value of oxygen concentration or temperature exceeds the preset range, the controller outputs electric signals to the explosion-proof electromagnetic directional valve, the explosion-proof electric proportional pressure reducing valve, the explosion-proof electric proportional flow valve and the pressure compensation valve according to the detected value, the port P and the port B of the explosion-proof electromagnetic directional valve are communicated, water provided by the explosion-proof water pump flows into the port 2 of the explosion-proof electric proportional pressure reducing valve through the port P and the port B of the explosion-proof electromagnetic directional valve, the explosion-proof electric proportional pressure reducing valve controls the water pressure at corresponding pressure values according to the electric signals output by the controller, the explosion-proof electric proportional flow valve adjusts the opening degree from the port P to the port A according to the electric signals output by the controller, the pressure compensation valve compares the pressure of the port P of the explosion-proof electric proportional flow valve and the pressure of the port A and performs corresponding follow-up, the pressure of the port A of the pressure compensation valve is the same as the pressure of the port P of the explosion-proof electric proportional flow valve, water flowing out from the And the fog is sprayed into the flame extinguishing cavity from the water fog nozzle.
The invention has the beneficial effects that:
by adopting the impact suffocation energy-saving flame extinguishing device and the control method provided by the invention, the detected values of the oxygen concentration and the temperature detected by the oxygen concentration sensor and the temperature sensor are both in a preset range, and the controller does not output electric signals to the explosion-proof electromagnetic directional valve, the explosion-proof electric proportional pressure reducing valve, the explosion-proof electric proportional flow valve and the pressure compensation valve; the port P of the explosion-proof electromagnetic directional valve is communicated with the port A, and water provided by the explosion-proof water pump flows back to the water tank through the port P and the port A of the explosion-proof electromagnetic directional valve;
the oxygen concentration sensor and the temperature sensor detect that the numerical value of the oxygen concentration or the temperature exceeds a preset range, the controller outputs electric signals to the explosion-proof electromagnetic directional valve, the explosion-proof electric proportional pressure reducing valve, the explosion-proof electric proportional flow valve and the pressure compensation valve according to the detection values, a port P and a port B of the explosion-proof electromagnetic directional valve are communicated, water provided by the explosion-proof water pump flows into a port 2 of the explosion-proof electric proportional pressure reducing valve through the port P and the port B of the explosion-proof electromagnetic directional valve, the explosion-proof electric proportional pressure reducing valve controls the water pressure at a corresponding pressure value according to the electric signals output by the controller, the explosion-proof electric proportional flow valve adjusts the opening degree from the port P to the port A according to the electric signals output by the controller, the pressure compensation valve compares the pressures of the port P and the port A of the explosion-proof electric proportional flow valve and makes corresponding follow-up, the pressure of the port A of the pressure compensation valve is the same as that of the port P of the explosion-proof In the spray head, a large amount of water mist is formed by collision in the water mist spray head and is sprayed out by the water mist spray head, the flame extinguishing chamber is instantly filled with the water mist spray head, the concentration of oxygen in the flame extinguishing chamber is reduced (the concentration of the oxygen can be reduced from 20% to 4-5%), the flame is extinguished, and meanwhile, the temperature of air can be reduced, and the intercooling effect is achieved; air and water mist enter the water mist cooling cavity from the flame extinguishing cavity, the water mist is cooled to become water drops and air separated from the air after meeting the cavity wall of the water mist cooling cavity, and air flow enters an explosion-proof diesel engine cylinder through the air outlet cavity;
the water cooled by the water mist cooling cavity flows into the water collecting cavity, flows back to the water tank after being cooled by the cooling device, and circulates again to form a closed energy-saving water path system, so that the effects of environmental protection and energy saving are achieved;
in conclusion, compared with the prior plate-type or net-type flame arrester which realizes flame extinction through temperature reduction, the impact suffocation energy-saving flame extinction device provided by the invention reduces the oxygen concentration and synchronously reduces the temperature, not only improves the flame extinction efficiency, but also does not influence the ventilation volume of the air intake of an engine, has the functions of precipitation and filtration on solid particles carried in the air intake in a severe working environment, and realizes intelligent monitoring and extinguishment through an integrated control device.
Drawings
Fig. 1 is a schematic structural diagram of an impact suffocation energy-saving flame arrester according to embodiment 1 of the invention;
fig. 2 is a control schematic diagram of the impact suffocation energy-saving flame extinguishing device shown in fig. 1.
In the figure: 1-a water mist spray head; 2-an explosion-proof water pump; 3-a low pressure manifold; 4-a high pressure manifold; 4.1-a water return pipe; 5-a water tank; 6.1-air inlet chamber; 6.2-water mist cooling chamber; 6.3-air outlet cavity; 6.4-asphyxia chamber; 6.5-rear barrier compartment; 6.6-front blocking cavity I; 6.7-front blocking cavity II; 6.8-transition chamber; 6.9-a drainage plate; 6.10-drainage bending plate; 6.11-water collecting cavity; 6.12-gas inlet connection flange; 6.13-gas outlet connecting flange; 6.14-water outlet connecting flange; 7.1-oxygen concentration sensor; 7.2-temperature sensor; 7.3-a controller; 7.4-explosion-proof power source; 7.5-explosion-proof electromagnetic directional valve; 7.6-explosion-proof electric proportional pressure reducing valve; 7.7-explosion-proof electric proportional flow valve; 7.8-pressure compensation valve; 7.9-filter; 7.10-one-way valve; 8-a cooling device; 9-high pressure manifold.
Detailed Description
Example 1
The embodiment provides an impact suffocation energy-saving flame extinguishing device, as shown in fig. 1 and 2, comprising a shell, a water mist spray head 1, an integrated control device, an explosion-proof water pump 2, a low-pressure main pipe 3, a high-pressure main pipe 4 and a water tank 5; an air inlet cavity 6.1 communicated with air, a flame extinguishing cavity communicated with the air inlet cavity 6.1, a water mist cooling cavity 6.2 communicated with the flame extinguishing cavity and an air outlet cavity 6.3 communicated with the water mist cooling cavity 6.2 are arranged in the shell; the water mist spray head 1 is arranged in the flame extinguishing cavity, and the water pressure at the water mist spray head 1 is minimum 1MPa so as to ensure that water has enough pressure at the water mist spray head 1 to generate water mist by collision; the integrated control device comprises an oxygen concentration sensor 7.1 for detecting the oxygen concentration in the flame extinguishing cavity, a temperature sensor 7.2 for detecting the temperature in the flame extinguishing cavity, a controller 7.3 respectively electrically connected with the oxygen concentration sensor 7.1 and the temperature sensor 7.2, an explosion-proof power source 7.4 connected with the explosion-proof water pump 2 and used for providing power for the explosion-proof water pump 2, an explosion-proof electromagnetic directional valve 7.5, an explosion-proof electric proportional pressure reducing valve 7.6, an explosion-proof electric proportional flow valve 7.7 and a pressure compensation valve 7.8; the water inlet of the explosion-proof water pump 2 is connected with the water tank 5 through the low-pressure main pipe 3, and the water outlet is connected with the P port of the explosion-proof electromagnetic directional valve 7.5 through the high-pressure main pipe 4; the explosion-proof electromagnetic directional valve 7.5 is electrically connected with the controller 7.3, the port A is communicated with the water tank 5, and the port B is connected with the port 2 of the explosion-proof electric proportional pressure reducing valve 7.6; the explosion-proof electric proportional flow valve 7.7 is electrically connected with the controller 7.3, the port P is connected with the port 1 of the explosion-proof electric proportional pressure reducing valve 7.6, and the port A is connected with the port P of the pressure compensating valve 7.8; the pressure compensation valve 7.8 is electrically connected with the controller 7.3, and the port A is connected with the water mist spray head 1.
If the oxygen concentration sensor 7.1 and the temperature sensor 7.2 detect that the detected values of the oxygen concentration and the temperature are both in the preset range, the explosion-proof diesel engine works normally, and the controller 7.3 does not output electric signals to the explosion-proof electromagnetic directional valve 7.5, the explosion-proof electric proportional pressure reducing valve 7.6, the explosion-proof electric proportional flow valve 7.7 and the pressure compensation valve 7.8; the P port and the A port of the explosion-proof electromagnetic directional valve 7.5 are communicated, and water provided by the explosion-proof water pump 2 flows back to the water tank 5 through the P port and the A port of the explosion-proof electromagnetic directional valve 7.5; if the oxygen concentration sensor 7.1 and the temperature sensor 7.2 detect that the oxygen concentration or the temperature exceeds the preset range, indicating that the explosion-proof diesel engine works abnormally, the controller 7.3 outputs electric signals to the explosion-proof electromagnetic directional valve 7.5, the explosion-proof electric proportional pressure reducing valve 7.6, the explosion-proof electric proportional flow valve 7.7 and the pressure compensating valve 7.8 according to detection values, a P port and a B port of the explosion-proof electromagnetic directional valve 7.5 are communicated, water provided by the explosion-proof water pump 2 flows into the 2 port of the explosion-proof electric proportional pressure reducing valve 7.6 through the P port and the B port of the explosion-proof electromagnetic directional valve 7.5, the explosion-proof electric proportional pressure reducing valve 7.6 controls the water pressure at a corresponding pressure value according to the electric signals output by the controller 7.3, the explosion-proof electric proportional flow valve 7.7 adjusts the opening degree from the P port to the A port according to the electric signals output by the controller 7.3 to control the flow of the water, the pressure compensating valve 7.8 compares the pressures of the explosion-proof electric proportional flow, the pressure of the opening 7.8A of the pressure compensation valve is the same as that of the opening 7.7P of the explosion-proof electric proportional flow valve, water flowing out of the opening 1 of the explosion-proof electric proportional pressure reducing valve 7.6 flows through the explosion-proof electric proportional flow valve 7.7 and the pressure compensation valve 7.8 to enter the water mist spray head 1 and collides in the water mist spray head 1 to form a large amount of water mist, the water mist spray head 1 sprays the water mist to be instantly filled with a flame extinguishing cavity, the concentration of oxygen in the flame extinguishing cavity is reduced, and the flame is extinguished. The combination of the explosion-proof electric proportional flow valve 7.7 and the pressure compensation valve 7.8 realizes the accurate control of the flow of the water, and meanwhile, the pressure of the water is not influenced.
Further, as shown in fig. 1, the flame extinguishing chamber comprises a suffocation chamber 6.4, a front blocking chamber communicating an air inlet chamber 6.1 with an air inlet of the suffocation chamber 6.4, and a rear blocking chamber 6.5 communicating an air outlet of the water mist cooling chamber 6.2 with an air outlet of the suffocation chamber 6.4; the water mist spray head 1 is arranged in the suffocation cavity 6.4. The process of water mist fire extinguishing is controlled to be in the asphyxia cavity 6.4 as much as possible by arranging the front blocking cavity and the rear blocking cavity 6.5, and the influence of the water mist on other cavities outside the flame extinguishing cavity is reduced.
In this embodiment, in particular, as shown in fig. 1, the number of pre-baffle compartments is two, including a pre-baffle compartment I6.6 and a pre-baffle compartment II 6.7.
Further, as shown in fig. 1, a transition cavity 6.8 is arranged between the water mist cooling cavity 6.2 and the air outlet cavity 6.3. The air cooled by the water mist cooling cavity 6.2 enters the transition cavity 6.8 for cooling and water removal again, and the water content in the air is further reduced.
Further, as shown in fig. 1, a flow guide plate 6.9 is arranged in the air inlet cavity 6.1, so that the air flow is divided into a plurality of parallel air flows, and the resistance is reduced; and/or
Drainage bent plates 6.10 are arranged in the front blocking cavity, the rear blocking cavity 6.5, the water mist cooling cavity 6.2 and the transition cavity 6.8 so as to guide the air to flow.
Further, as shown in fig. 1, the impact suffocation energy-saving flame extinguishing device further comprises a cooling device 8; a water collecting cavity 6.11 communicated with the water mist cooling cavity 6.2 is arranged below the water mist cooling cavity 6.2; the water inlet of the cooling device 8 is connected with the water collecting cavity 6.11, and the water outlet is connected with the water tank 5. The water cooled by the water mist cooling cavity 6.2 flows into the water collecting cavity 6.11, and then flows back to the water tank 5 after being cooled by the cooling device 8, and is circulated again to form a closed energy-saving water path system, so that the effects of environmental protection and energy saving are achieved.
Further, as shown in fig. 1, a filter 7.9 is arranged on the low-pressure header pipe 3, and water to be fed into the explosion-proof water pump 2 is filtered to remove impurities, so as to ensure the cleanliness of the water.
Further, as shown in fig. 1, a check valve 7.10 is provided on the high pressure manifold 4 to prevent the reverse flow of water.
Further, as shown in fig. 1, a return pipe 4.1 connecting an opening 7.5A of the explosion-proof electromagnetic directional valve and the water tank 5 is provided on the high-pressure main pipe 4.
Further, as shown in fig. 2, the explosion-proof water pump 2, the filter 7.9, the low-pressure header pipe 3, the check valve 7.10, the explosion-proof electromagnetic directional valve 7.5, the explosion-proof electric proportional pressure reducing valve 7.6, the explosion-proof electric proportional flow valve 7.7 and the pressure compensating valve 7.8 are waterway channels; the number of the waterway channels is multiple; the number of the water mist spray heads 1 is the same as that of the waterway channels, and each water mist spray head 1 is connected with the A ports of the pressure compensation valves 7.8 in the waterway channels through the high-pressure branch pipes 9. Every water smoke shower nozzle 1 all communicates with many waterway channel, and the water that flows out in many waterway channels strikes each other in water smoke shower nozzle 1, makes the atomizing more rapidly and even. In the present embodiment, as shown in fig. 1, there are two water channels and two water mist heads 1, and each water mist head 1 is connected to two water channels.
Further, as shown in fig. 2, two explosion-proof water pumps 2 are arranged in each waterway channel, and one of the two explosion-proof water pumps is a standby water pump.
Furthermore, the shell is formed by welding stainless steel plates, so that long-term water mist spraying is guaranteed, the shell is not rusted, the structure is unique, novel, safe and reliable, the underground explosion-proof diesel engine meets the underground explosion-proof requirement, and the shell is very suitable for the underground explosion-proof diesel engine of the coal mine; the water mist spray head 1 is a stainless steel water mist spray head.
Further, as shown in fig. 1, an air inlet connecting flange 6.12 is arranged on an air inlet of the air inlet cavity 6.1, an air outlet connecting flange 6.13 is arranged on an air outlet of the air outlet cavity 6.3, and a water outlet connecting flange 6.14 is arranged on a water outlet of the water collecting cavity 6.11.
The sensors, the controller, the solenoid valves, the pump and the like in the embodiment are purchased or customized according to actual working conditions (such as explosion-proof requirements) based on the existing structure.
Example 2
The embodiment provides a control method of an impact suffocation energy-saving flame extinguishing device, which is implemented based on the impact suffocation energy-saving flame extinguishing device described in embodiment 1, and comprises the following steps:
s1, detecting the oxygen concentration and temperature in the flame extinguishing cavity;
s2, if the detected values of the oxygen concentration and the temperature are within the preset range, the controller 7.3 does not output electric signals to the explosion-proof electromagnetic directional valve 7.5, the explosion-proof electric proportional pressure reducing valve 7.6, the explosion-proof electric proportional flow valve 7.7 and the pressure compensation valve 7.8; the P port and the A port of the explosion-proof electromagnetic directional valve 7.5 are communicated, and water provided by the explosion-proof water pump 2 flows back to the water tank 5 through the P port and the A port of the explosion-proof electromagnetic directional valve 7.5;
s3, if the detected value of the oxygen concentration or the temperature exceeds the preset range, the controller 7.3 outputs electric signals to the explosion-proof electromagnetic directional valve 7.5, the explosion-proof electric proportional pressure reducing valve 7.6, the explosion-proof electric proportional flow valve 7.7 and the pressure compensating valve 7.8 according to the detected value, the P port and the B port of the explosion-proof electromagnetic directional valve 7.5 are communicated, the water provided by the explosion-proof water pump 2 flows into the 2 port of the explosion-proof electric proportional pressure reducing valve 7.6 through the P port and the B port of the explosion-proof electromagnetic directional valve 7.5, the explosion-proof electric proportional pressure reducing valve 7.6 controls the water pressure at a corresponding pressure value according to the electric signals output by the controller 7.3, the explosion-proof electric proportional flow valve 7.7 adjusts the opening degree from the P port to the A port according to the electric signals output by the controller 7.3, the pressure compensating valve 7.8 compares the pressure of the P port and the pressure of the A port of the explosion-proof electric proportional flow valve 7.7.7 and makes corresponding follow-up, so that the pressure of the A, water flowing out of the port 1 of the explosion-proof electric proportional pressure reducing valve 7.6 flows through the explosion-proof electric proportional flow valve 7.7 and the pressure compensation valve 7.8 to enter the water mist spray head 1 to collide to form water mist, and the water mist is sprayed into a flame extinguishing cavity from the water mist spray head 1.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, or direct or indirect applications in other related fields, which are made by the contents of the present specification, are included in the scope of the present invention.
Claims (10)
1. An impact suffocation energy-saving flame extinguishing device comprises a shell, a water mist spray head (1), an integrated control device, an explosion-proof water pump (2), a low-pressure main pipe (3), a high-pressure main pipe (4) and a water tank (5);
an air inlet cavity (6.1) communicated with air, a flame extinguishing cavity communicated with the air inlet cavity (6.1), a water mist cooling cavity (6.2) communicated with the flame extinguishing cavity and an air outlet cavity (6.3) communicated with the water mist cooling cavity (6.2) are arranged in the shell;
the water mist spray head (1) is arranged in the flame extinguishing cavity;
a water inlet of the explosion-proof water pump (2) is connected with a water tank (5) through a low-pressure main pipe (3), and a water outlet of the explosion-proof water pump is connected with a P port of an explosion-proof electromagnetic directional valve (7.5) through a high-pressure main pipe (4);
the water pressure at the water mist nozzle (1) is 1MPa at minimum;
the integrated control device comprises an oxygen concentration sensor (7.1) for detecting the concentration of oxygen in a flame extinguishing cavity, a temperature sensor (7.2) for detecting the temperature in the flame extinguishing cavity, a controller (7.3) which is respectively and electrically connected with the oxygen concentration sensor (7.1) and the temperature sensor (7.2), an explosion-proof power source (7.4) connected with an explosion-proof water pump (2), an explosion-proof electromagnetic directional valve (7.5), an explosion-proof electric proportional pressure reducing valve (7.6), an explosion-proof electric proportional flow valve (7.7) and a pressure compensation valve (7.8);
the explosion-proof electromagnetic directional valve (7.5) is electrically connected with the controller (7.3), an A port of the explosion-proof electromagnetic directional valve (7.5) is communicated with the water tank (5), and a B port of the explosion-proof electromagnetic directional valve (7.5) is connected with the 2 port of the explosion-proof electric proportional pressure reducing valve (7.6);
the explosion-proof electric proportional flow valve (7.7) is electrically connected with the controller (7.3), a port P of the explosion-proof electric proportional flow valve (7.7) is connected with a port 1 of the explosion-proof electric proportional pressure reducing valve (7.6), and a port A of the explosion-proof electric proportional flow valve (7.7) is connected with a port P of the pressure compensating valve (7.8);
the pressure compensation valve (7.8) is electrically connected with the controller (7.3), and an A port of the pressure compensation valve (7.8) is connected with the water mist spray head (1).
2. An impact suffocation energy-saving flame arrester as claimed in claim 1, wherein the flame extinguishing chamber comprises a suffocation chamber (6.4), a front blocking chamber communicating the air inlet chamber (6.1) with the air inlet of the suffocation chamber (6.4), and a rear blocking chamber (6.5) communicating the water mist cooling chamber (6.2) with the air outlet of the suffocation chamber (6.4);
the water mist spray head (1) is arranged in the suffocation cavity (6.4).
3. An impact suffocation energy saving flame arrester as claimed in claim 2, characterized in that a transition chamber (6.8) is arranged between the water mist cooling chamber (6.2) and the air outlet chamber (6.3).
4. An impact suffocation energy-saving flame arrester as claimed in claim 3, characterized in that a flow guide plate (6.9) is arranged in the air inlet chamber (6.1); and/or
Drainage bent plates (6.10) are arranged in the preposed blocking separation cavity, the postposed blocking separation cavity (6.5), the water mist cooling cavity (6.2) and the transition cavity (6.8).
5. An impact suffocation energy saving flame arrester as claimed in claim 4, further comprising cooling means (8);
a water collecting cavity (6.11) communicated with the water mist cooling cavity (6.2) is arranged below the water mist cooling cavity (6.2);
the water inlet of the cooling device (8) is connected with the water collecting cavity (6.11), and the water outlet is connected with the water tank (5).
6. An impact suffocation energy saving flame arrester as claimed in any one of claims 1 to 5 wherein a filter (7.9) is provided on the low pressure manifold (3).
7. An impact suffocation energy saving flame arrester as claimed in claim 6, characterized in that the high pressure manifold (4) is provided with a one-way valve (7.10).
8. An impact suffocation energy-saving flame extinction device according to claim 7, wherein the explosion-proof water pump (2), the filter (7.9), the low-pressure main pipe (3), the one-way valve (7.10), the explosion-proof electromagnetic directional valve (7.5), the explosion-proof electric proportional pressure reducing valve (7.6), the explosion-proof electric proportional flow valve (7.7) and the pressure compensation valve (7.8) are waterway channels;
the number of the waterway channels is multiple;
the number of the water mist spray heads (1) is the same as that of the waterway channels, and each water mist spray head (1) is connected with the A ports of the pressure compensation valves (7.8) in the waterway channels through the high-pressure branch pipes (9).
9. An impact suffocation energy-saving flame arrester as claimed in claim 5, wherein the housing is formed by welding stainless steel plates;
the water mist spray head (1) is a stainless steel water mist spray head.
10. A control method of an impact suffocation energy-saving flame arrester, which is characterized by being implemented on the basis of the impact suffocation energy-saving flame arrester of any one of claims 1 to 9 and comprising the following steps:
s1, detecting the oxygen concentration and temperature in the flame extinguishing cavity;
s2, if the detected values of the oxygen concentration and the temperature are within the preset range, the controller (7.3) does not output electric signals to the explosion-proof electromagnetic directional valve (7.5), the explosion-proof electric proportional pressure reducing valve (7.6), the explosion-proof electric proportional flow valve (7.7) and the pressure compensation valve (7.8); the P port and the A port of the explosion-proof electromagnetic directional valve (7.5) are communicated, and water provided by the explosion-proof water pump (2) flows back to the water tank (5) through the P port and the A port of the explosion-proof electromagnetic directional valve (7.5);
s3, if the detected value of the oxygen concentration or the temperature exceeds the preset range, the controller (7.3) outputs electric signals to the explosion-proof electromagnetic directional valve (7.5), the explosion-proof electric proportional pressure reducing valve (7.6), the explosion-proof electric proportional flow valve (7.7) and the pressure compensation valve (7.8) according to the detected value, a port P and a port B of the explosion-proof electromagnetic directional valve (7.5) are communicated, water provided by the explosion-proof water pump (2) flows into the port 2 of the explosion-proof electric proportional pressure reducing valve (7.6) through the port P and the port B of the explosion-proof electromagnetic directional valve (7.5), the explosion-proof electric proportional pressure reducing valve (7.6) controls the water pressure to be a corresponding pressure value according to the electric signals output by the controller (7.3), the explosion-proof electric proportional flow valve (7.7) adjusts the opening degree from the port P to the port A according to the electric signals output by the controller (7.3), the pressure compensation valve (7.8) compares the pressure of the port P of the explosion-proof electric proportional flow valve (7.7., the pressure of the port A of the pressure compensation valve (7.8) is the same as that of the port P of the explosion-proof electric proportional flow valve (7.7), water flowing out of the port 1 of the explosion-proof electric proportional pressure reducing valve (7.6) flows through the explosion-proof electric proportional flow valve (7.7) and the pressure compensation valve (7.8) to enter the water mist spray head (1) to collide to form water mist, and the water mist is sprayed into a flame extinguishing cavity from the water mist spray head (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810554534.7A CN108869119B (en) | 2018-06-01 | 2018-06-01 | Impact suffocation energy-saving flame extinguishing device and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810554534.7A CN108869119B (en) | 2018-06-01 | 2018-06-01 | Impact suffocation energy-saving flame extinguishing device and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108869119A CN108869119A (en) | 2018-11-23 |
| CN108869119B true CN108869119B (en) | 2021-02-02 |
Family
ID=64336873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810554534.7A Active CN108869119B (en) | 2018-06-01 | 2018-06-01 | Impact suffocation energy-saving flame extinguishing device and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108869119B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110180105B (en) * | 2019-06-05 | 2021-02-12 | 杰瑞环保科技有限公司 | Self-generating steam protection and fire extinguishing technology |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1405442A (en) * | 2002-10-17 | 2003-03-26 | 赵晶 | Internal combustion steam thermal engine |
| EP1336748B1 (en) * | 2002-02-15 | 2005-05-04 | Wärtsilä Finland Oy | Air feeding arrangement for piston engine |
| JP2008025555A (en) * | 2006-07-18 | 2008-02-07 | Satoshi Suganuma | Intake air introduction method for engine |
-
2018
- 2018-06-01 CN CN201810554534.7A patent/CN108869119B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1336748B1 (en) * | 2002-02-15 | 2005-05-04 | Wärtsilä Finland Oy | Air feeding arrangement for piston engine |
| CN1405442A (en) * | 2002-10-17 | 2003-03-26 | 赵晶 | Internal combustion steam thermal engine |
| JP2008025555A (en) * | 2006-07-18 | 2008-02-07 | Satoshi Suganuma | Intake air introduction method for engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108869119A (en) | 2018-11-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105756000B (en) | Automobile and spraying machine are using combustion gas as the multi-functional dust suppression vehicle of the overall-in-one control schema of power | |
| CN201537342U (en) | Automatic fire extinguishing system for long tunnel | |
| CN2875558Y (en) | Horizontal automatic back flushing screen net filter | |
| CN108869119B (en) | Impact suffocation energy-saving flame extinguishing device and control method | |
| CN104533505A (en) | Water mist tunnel smoke control system adopting spaced arrangement method | |
| CN205776040U (en) | Automobile and the spraying machine overall-in-one control schema with combustion gas as power multi-functional dust suppression car | |
| CN110863886B (en) | Device for controlling smoke emission of diesel engine set by using fine water mist | |
| CN217526171U (en) | Safe online cleaning flame arrester device | |
| CN2712396Y (en) | Pipe network type high pressure single flow water mist fire suppression device | |
| CN105311782A (en) | Novel firefighting cabinet | |
| CN105755202A (en) | Oxygen pipeline system and anti-blasting device of extra-large converter oxygen lance valve station | |
| CN202789430U (en) | Recovery system for gas lubrication and dry gas seal leakage gas | |
| CN111643997B (en) | Cloud and mist device based on filtering and scale prevention | |
| CN208009534U (en) | Energy-saving subregion non-negative pressure water service system | |
| CN204607628U (en) | A kind of vacuum degassing machine | |
| CN204469085U (en) | Sprinkler system | |
| CN202398011U (en) | Variable-frequency high-pressure automatic fire extinguisher for water mist | |
| CN207769015U (en) | It is a kind of that there is the wet fire protection alarm valve for preventing wrong report function | |
| CN204853773U (en) | Spray evaporation cooler - spiral -flow type atomizing nozzle | |
| CN106402658A (en) | Double-channel automatic oil inlet device driven by compressed air and control method thereof | |
| CN201441771U (en) | Air pressurizing oxygen cabin firefighting water tank | |
| CN215876521U (en) | Bypass system of return water filter screen of heat supply network | |
| CN202506036U (en) | Combined type intelligent fire extinguishing system | |
| CN217382494U (en) | Water draining device for hydrogen gas discharging system | |
| CN203886066U (en) | Micro-water frogdrop automatic fire extinguishment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |