Foam and water spraying fire extinguishing system for normal pressure tank in product oil tank area
By introducing an automatic control system and power valves into the foam and water sprinkler fire suppression system in the finished oil tank area, the problem of excessively long filling time of the foam-water mixture was solved, achieving the effects of rapid fire extinguishing and extended fire extinguishing time.
Patent Information
- Application Number
- CN202520367226.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-04
AI Technical Summary
In existing foam fire extinguishing systems for refined oil tank areas, the foam-water mixture pipeline takes too long to fill, resulting in prolonged emergency response time, and the manual control system does not react promptly when a fire starts at a distance.
Design a foam and water spray fire extinguishing system for atmospheric pressure tanks in a finished oil tank area. By combining two foam extinguishing systems and one water spray extinguishing system, and using a control system to automatically control the power valves, the foam-water mixture can be rapidly filled and segmented, ensuring that the foam-water mixture is sprayed directly towards the ignition point.
It shortens the time it takes for the foam-water mixture to fill the pipeline, reduces the emergency response time for fire fighting, and allows another system to be used to extend the fire fighting time when the foam agent is exhausted, thereby improving the fire handling capability.
Smart Images
Figure CN223901134U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of oil tank area fire fighting, in particular to a product oil tank area atmospheric tank foam and water spray fire fighting system. BACKGROUND
[0002] The product oil storage tank of a petrochemical enterprise generally belongs to a major hazard source, and the gasoline tank area and the diesel tank area both belong to a region with higher risk. The product oil tank area of the storage and transportation department is generally provided with multiple atmospheric gasoline storage tanks and / or multiple atmospheric diesel storage tanks, and each tank is provided with foam spraying and water spraying fire extinguishing facilities. The actual situation is that, due to the large number of gasoline storage tanks and diesel storage tanks, the product oil tank area includes multiple tank areas, each tank area is provided with multiple oil storage tanks, and each tank area is provided with a foam fire extinguishing station nearby. Due to the large number of tank areas or the dispersion of the tank areas, the fire extinguishing system generally includes two or more fire fighting foam stations, and each fire fighting foam station is responsible for the fire extinguishing of one or two tank areas. The problem is that the foam agent in the fixed fire fighting system foam tank is limited, in order to ensure that there is enough foam water mixture for fire extinguishing when a fire breaks out, the foam water mixture pipelines of two relatively close foam stations can be connected, but the "Technical Standard for Foam Fire Extinguishing System" (GB50151-2021) 4.1.11 requires that "the design of the fixed system should meet the requirement that the time from the start of the foam fire pump to the delivery of the foam mixture or the foam to the protected object is not more than 5 minutes", and it takes too long to fill the entire foam water mixture pipeline after the foam pump starts, which does not meet the fire fighting requirements; the foam and water fire fighting system is generally manually controlled, and if a tank body far away from the duty room catches fire, it takes a long time for the tank area duty personnel to run to the control valve of the fire tank, which prolongs the emergency time. UTILITY MODEL CONTENTS
[0003] The utility model solves the problem that it takes too long to fill the entire pipeline with foam water mixture after connecting the foam water mixture pipelines of two foam fire extinguishing stations, and provides a product oil tank area atmospheric tank foam and water spray fire fighting system that can shorten the time required to fill the pipeline with foam water mixture in an emergency.
[0004] The utility model discloses a kind of fire extinguishing systems for at least two atmospheric pressure gasoline tank area and / or at least two diesel tank area, which include two sets of foam fire extinguishing systems and at least one set of water spray fire extinguishing system, and each set of foam fire extinguishing system is used for extinguishing fire in adjacent atmospheric pressure gasoline tank area and / or atmospheric pressure diesel tank area.
[0005] With the above structure, the foam water mixture sub-section power valve, the foam water mixture branch pipe power valve and the foam water mixture sub-branch pipe power valve are all in the open state in normal times, when the monitoring system detects that a certain atmospheric pressure gasoline tank or atmospheric pressure diesel tank is on fire, the monitoring system transmits the position number information of the tank on fire and the like to the control system, the control system controls the fire pump of the foam fire extinguishing system close to the tank area where the tank on fire is located to start, the fire water enters the foam system fire water inlet pipe, part of the fire water enters the fire foam tank through the fire foam tank water inlet pipe, the generated foam liquid flows out through the foam liquid outlet pipe, mixes with the fire water in the foam system fire water inlet pipe to form the foam water mixture, enters the foam water mixture main pipe, controls the power valves on the foam water mixture branch pipes and the foam water mixture branch pipes connected with the tank on fire to open, controls the power valves on the foam water mixture branch pipes and the foam water mixture branch pipes to close, controls the opening and closing of the foam water mixture sub-section power valve on the foam water mixture main pipe, so that the foam water mixture sub-section power valve before the foam water mixture branch pipe of the tank area where the tank on fire is located is opened, and the foam water mixture sub-section power valve behind the foam water mixture branch pipe of the tank area where the tank on fire is located is closed, the front and back in the utility model refer to the flow direction of the foam water mixture or the spray water in the pipeline, the foam water mixture and the spray water flow from front to back, so that the foam water mixture in the foam water mixture main pipe can only enter the foam water mixture branch pipe of the tank area where the tank on fire is located, after the foam water mixture fills the foam water mixture branch pipe of the tank area where the tank on fire is located and the foam water mixture main pipe before the foam water mixture branch pipe, the foam water mixture enters the foam water mixture branch pipe connected with the tank on fire, and is sprayed to the fire position on the tank body through the foam water mixture pipeline on the tank body to extinguish the fire; at the same time when the foam fire extinguishing system starts, the spray water of the water spray fire extinguishing system enters the spray water main pipe, the spray water branch pipe and the spray water sub-branch pipe, and then is sprayed to the tank on fire and the tank bodies near the tank on fire through the spray water pipeline on the tank body to cool and lower the temperature of the tank and extinguish the fire.
[0006] The starting end of the foam water mixture main pipe is provided with a foam water mixture main pipe power valve, the foam system fire water inlet pipe is provided with a foam system fire water inlet power valve for controlling the water inlet, and the foam water mixture main pipe power valve and the foam system fire water inlet power valve are electrically connected with the control system.
[0007] Each of the spray water branch pipes is provided with a spray water branch pipe power valve for controlling the spray water from the spray water main pipe into the spray water branch pipe, the spray water main pipe is provided with a plurality of spray water section power valves for controlling the on-off of the spray water main pipe, the spray water branch pipe is provided with a spray water branch pipe power valve for controlling the spray water from the spray water branch pipe into the spray water branch pipe, and the spray water section power valve, the spray water branch pipe power valve and the spray water branch pipe power valve are electrically connected with the control system.
[0008] The spray water branch pipe and the foam water mixture branch pipe are both provided with a check valve.
[0009] The product oil tank area normal pressure tank foam and water spray fire extinguishing system connects two sets of foam fire extinguishing system foam water mixture main pipes, and is provided with a plurality of section power valves on the foam water mixture main pipe, and is provided with power valves on the foam water mixture branch pipe and the foam water mixture branch pipe, all the power valves are electrically connected with the control system, when a normal pressure gasoline tank or a normal pressure diesel tank catches fire, the control system automatically controls the opening and closing of different power valves, so that the foam water mixture can be sprayed out of the foam water mixture to extinguish the fire without filling the foam water mixture main pipe, the foam water mixture branch pipe and the foam water mixture branch pipe, the emergency response time from the fire to the foam fire extinguishing is shortened, when the foam agent in the fire-fighting foam tank close to the fire tank is exhausted, the foam water mixture of the foam fire extinguishing system far away from the fire tank can be used for fire extinguishing, the duration of the foam fire extinguishing is prolonged, and the fire disposal capacity of the product oil tank area is improved; while the foam fire extinguishing is carried out, the spray water is sprayed to the fire tank and the tank body near the fire tank through the spray water main pipe, the spray water branch pipe and the spray water branch pipe, and the tank body is cooled and extinguished. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 It is a structural schematic view of the utility model;
[0011] Figure 2 It is a foam and water spray fire extinguishing system pipeline view of the first normal pressure gasoline tank area and the first normal pressure diesel tank area;
[0012] Figure 3 It is a foam and water spray fire extinguishing system pipeline view of the second normal pressure gasoline tank area and the second normal pressure diesel tank area;
[0013] Figure 4 It is a connection schematic view of the foam water mixture branch pipe and the foam water mixture pipeline on the first normal pressure gasoline tank, and a connection schematic view of the spray water branch pipe and the spray water mixture pipeline on the first normal pressure gasoline tank;
[0014] Figure: 1, first foam system fire water inlet pipe; 11, first pneumatic valve; 2, first fire fighting foam tank; 21, first foam tank water inlet pipe; 22, first foam liquid outlet pipe; 3, first foam water mixture main pipe; 31, first foam water mixture branch pipe; 311, second pneumatic valve; 312, first foam water mixture sub-pipe; 313, third pneumatic valve; 314, first check valve; 32, fourth pneumatic valve; 33, second foam water mixture branch pipe; 331, fifth pneumatic valve; 332, second foam water mixture sub-pipe; 333, sixth pneumatic valve; 334, second check valve; 34, seventh pneumatic valve; 35, eighth pneumatic valve; 4, first sprinkler water main pipe; 41, first sprinkler water branch pipe; 411, ninth pneumatic valve; 412, first sprinkler water sub-pipe; 413, tenth pneumatic valve; 414, third check valve; 42, eleventh pneumatic valve; 43, second sprinkler water branch pipe; 431, twelfth pneumatic valve; 432, second sprinkler water sub-pipe; 433, thirteenth pneumatic valve; 434, fourth check valve; 44, fourteenth pneumatic valve; 45, fifteenth pneumatic valve; 5, second foam system fire water inlet pipe; 51, sixteenth pneumatic valve; 6, second fire fighting foam tank; 61, second foam tank water inlet pipe; 62, second foam liquid outlet pipe; 7, second foam water mixture main pipe; 71, third foam water mixture branch pipe; 711, seventeenth pneumatic valve; 712, third foam water mixture sub-pipe; 713, eighteenth pneumatic valve; 714, fifth check valve; 72, nineteenth pneumatic valve; 73, fourth foam water mixture branch pipe; 731, twentieth pneumatic valve; 732, fourth foam water mixture sub-pipe; 733, twenty-first pneumatic valve; 734, sixth check valve; 74, twenty-second pneumatic valve; 75, twenty-third pneumatic valve; 8, second sprinkler water main pipe; 81, third sprinkler water branch pipe; 811, twenty-fourth pneumatic valve; 812, third sprinkler water sub-pipe; 813, twenty-fifth pneumatic valve; 814, seventh check valve; 82, twenty-sixth pneumatic valve; 83, fourth sprinkler water branch pipe; 831, twenty-seventh pneumatic valve; 832, fourth sprinkler water sub-pipe; 833, twenty-eighth pneumatic valve; 834, eighth check valve; 84, twenty-ninth pneumatic valve; 85, thirtieth pneumatic valve; 10, first normal pressure gasoline tank; 101, tank body foam water mixture pipe; 102, tank body sprinkler water pipe; 100, first normal pressure gasoline tank area; 20, first normal pressure diesel tank; 200, first normal pressure diesel tank area; 30, second normal pressure gasoline tank; 300, second normal pressure gasoline tank area; 40, second normal pressure diesel tank; 400, second normal pressure diesel tank area. DETAILED DESCRIPTION
[0015] Figure 1The shown petrochemical enterprise product oil tank area includes two atmospheric gasoline tanks and two atmospheric diesel oil tanks, which are respectively a first atmospheric gasoline tank area 100, a first atmospheric diesel oil tank area 200, a second atmospheric gasoline tank area 300, and a second atmospheric diesel oil tank area 400. Fire berms are arranged around each tank area, and product oil storage tanks are arranged in the fire berms. Six first atmospheric gasoline tanks 10 are arranged in the first atmospheric gasoline tank area 100, six first atmospheric diesel oil tanks 20 are arranged in the first atmospheric diesel oil tank area 200, six second atmospheric gasoline tanks 30 are arranged in the second atmospheric gasoline tank area 300, and six second atmospheric diesel oil tanks 40 are arranged in the second atmospheric diesel oil tank area 400. The six tanks are arranged in two rows and three columns. Of course, other numbers of storage tanks can be included in an actual tank area. The first atmospheric gasoline tank area 100 is adjacent to the first atmospheric diesel oil tank area 200, the second atmospheric gasoline tank area 300 is adjacent to the second atmospheric diesel oil tank area 400, and the distance between the first atmospheric gasoline tank area 100 and the first atmospheric diesel oil tank area 200 and the second atmospheric gasoline tank area 300 and the second atmospheric diesel oil tank area 400 is far. When a product oil tank area includes multiple tank areas, a fire-fighting channel needs to be designed, and a fire-fighting distance needs to be left. All tank areas are not designed to be adjacent. Of course, other arrangement forms can be used in an actual product oil tank area. The number of atmospheric gasoline tank areas and atmospheric diesel oil tank areas can also be different. The present application is used for Figure 1 The tank area arrangement shown is used as an example to describe the foam and water spray fire-fighting system of the atmospheric tank area of a product oil tank area.
[0016] Referring to Figures 1-3 A foam and water spray fire-fighting system for atmospheric tanks in a product oil tank area includes two sets of foam fire-fighting systems and two sets of water spray fire-fighting systems for extinguishing fires in atmospheric gasoline tank areas and atmospheric diesel oil tank areas in the product oil tank area. One set of foam fire-fighting system and one set of water spray fire-fighting system are used for extinguishing fires in the adjacent first atmospheric gasoline tank area 100 and the first atmospheric diesel oil tank area 200. Another set of foam fire-fighting system and another set of water spray fire-fighting system are used for extinguishing fires in the adjacent second atmospheric gasoline tank area 300 and the second atmospheric diesel oil tank area 400. The system also includes a control system (not shown in the figure) and a monitoring system (not shown in the figure) for monitoring the tank on fire. The control system and the monitoring system are prior art. The control system is electrically connected to the monitoring system and the fire-fighting pumps (not shown in the figure) of the foam fire-fighting system and the water spray fire-fighting system.
[0017] Referring to Figures 1-4Each set of foam fire extinguishing system comprises a foam system fire water inlet pipe and a fire foam tank, the fire water in the foam system fire water inlet pipe comes from a fire pump (not shown in the figure), specifically, the foam fire extinguishing system adjacent to the first normal pressure gasoline tank area 100 and the first normal pressure diesel tank area 200 comprises a first foam system fire water inlet pipe 1 and a first fire foam tank 2, the water inlet of the first fire foam tank 2 is connected with the first foam system fire water inlet pipe 1 through a first foam tank water inlet pipe 21, the foam liquid outlet of the first fire foam tank 2 is connected to the first foam system fire water inlet pipe 1 through a first foam liquid outlet pipe 22, the end of the first foam liquid outlet pipe 22 is connected with the end of the first foam system fire water inlet pipe 1 to form a first foam water mixture main pipe 3, similarly, the foam fire extinguishing system adjacent to the second normal pressure gasoline tank area 300 and the second normal pressure diesel tank area 400 comprises a second foam system fire water inlet pipe 5 and a second fire foam tank 6, the water inlet of the second fire foam tank 6 is connected with the second foam system fire water inlet pipe 5 through a second foam tank water inlet pipe 61, the foam liquid outlet of the second fire foam tank 6 is connected to the second foam system fire water inlet pipe 5 through a second foam liquid outlet pipe 62, the end of the second foam liquid outlet pipe 62 is connected with the end of the second foam system fire water inlet pipe 5 to form a second foam water mixture main pipe 7; each normal pressure gasoline tank area and normal pressure diesel tank area is provided with a foam water mixture branch pipe connected with the foam water mixture main pipe, the foam water mixture branch pipe is connected with the foam water mixture pipeline on each normal pressure gasoline tank and normal pressure diesel tank through a foam water mixture branch pipe, specifically, the first normal pressure gasoline tank area 100 is provided with a first foam water mixture branch pipe 31 connected with the first foam water mixture main pipe 3, the first normal pressure diesel tank area 200 is provided with a second foam water mixture branch pipe 33 connected with the first foam water mixture main pipe 3, the second normal pressure gasoline tank area 300 is provided with a fourth foam water mixture branch pipe 73 connected with the second foam water mixture main pipe 7, the second normal pressure diesel tank area 400 is provided with a third foam water mixture branch pipe 71 connected with the second foam water mixture main pipe 7, the first foam water mixture branch pipe 31 is connected with the foam water mixture pipeline on the first normal pressure gasoline tank 10 through a first foam water mixture branch pipe 312, the second foam water mixture branch pipe 33 is connected with the foam water mixture pipeline on the first normal pressure diesel tank 20 through a second foam water mixture branch pipe 332, the third foam water mixture branch pipe 71 is connected with the foam water mixture pipeline on the second normal pressure diesel tank 40 through a third foam water mixture branch pipe 712, the fourth foam water mixture branch pipe 73 is connected with the foam water mixture pipeline on the second normal pressure gasoline tank 30 through a fourth foam water mixture branch pipe 732, as Figure 4As shown, taking the first atmospheric gasoline tank 10 as an example, the first atmospheric gasoline tank 10 is provided with at least one tank body foam water mixture pipe 101 connected with the first foam water mixture branch pipe 312, and the tank body foam water mixture pipe 101 can be provided with two or more than two, and the tank body foam water mixture pipe 101 is usually also connected with multiple foam branch pipes on the tank body, and a foam generator and other accessories (not shown in the figure) are also provided on the tank body foam water mixture pipe 101 or the foam branch pipe, which is a conventional design in the art, and the remaining atmospheric oil tanks are designed in the same way from the foam water mixture branch pipe to the tank body foam water mixture pipe.
[0018] With reference to Figures 1-4, two sets of foam fire extinguishing system foam water mixture main pipe connection, namely the first foam water mixture main pipe 3 and the second foam water mixture main pipe 7 are connected, each foam water mixture branch pipe is provided with a foam water mixture branch pipe power valve for controlling the foam water mixture from the foam water mixture main pipe into the foam water mixture branch pipe, the first foam water mixture branch pipe 31 is provided with a second pneumatic valve 311, the second foam water mixture branch pipe 33 is provided with a fifth pneumatic valve 331, the third foam water mixture branch pipe 71 is provided with a seventeenth pneumatic valve 711, the fourth foam water mixture branch pipe 73 is provided with a twentieth pneumatic valve 731, the second pneumatic valve 311, the fifth pneumatic valve 331, the seventeenth pneumatic valve 711 and the twentieth pneumatic valve 731 are all foam water mixture branch pipe power valves, and the power valve can also be an electric valve; the foam water mixture main pipe is provided with a plurality of foam water mixture section power valves for controlling the on-off of the foam water mixture main pipe, the first foam water mixture main pipe 3 is provided with a fourth pneumatic valve 32 and a seventh pneumatic valve 34, the second foam water mixture main pipe 7 is provided with a nineteenth pneumatic valve 72 and a twenty-second pneumatic valve 74, the fourth pneumatic valve 32, the seventh pneumatic valve 34, the nineteenth pneumatic valve 72 and the twenty-second pneumatic valve 74 are all foam water mixture section power valves, and the foam water mixture section power valves can also be arranged on both sides of the foam water mixture branch pipe, taking the fire of the oil tank in the first normal pressure gasoline tank area 100 as an example, the fourth pneumatic valve 32 is closed, and the foam water mixture in the first foam water mixture main pipe 3 can only enter the first foam water mixture branch pipe 31, if the foam agent in the first fire extinguishing foam tank 2 is consumed, the foam agent in the second fire extinguishing foam tank 6 needs to be used, the fourth pneumatic valve 32, the seventh pneumatic valve 34, the nineteenth pneumatic valve 72 and the twenty-second pneumatic valve 74 are all opened, the foam water mixture in the second foam water mixture main pipe 7 can enter the first foam water mixture branch pipe 31, at this time, the second pneumatic valve 311 is opened, and the fifth pneumatic valve 331, the seventeenth pneumatic valve 711 and the twentieth pneumatic valve 731 are all closed. The foam water mixture branch pipe is provided with a foam water mixture branch pipe power valve for controlling the foam water mixture from the foam water mixture branch pipe into the foam water mixture branch pipe, the first foam water mixture branch pipe 312 is provided with a third pneumatic valve 313 and a first check valve 314, the second foam water mixture branch pipe 332 is provided with a sixth pneumatic valve 333 and a second check valve 334, the third foam water mixture branch pipe 712 is provided with an eighteenth pneumatic valve 713 and a fifth check valve 714, and the fourth foam water mixture branch pipe 732 is provided with a twenty-first pneumatic valve 733 and a sixth check valve 734, the third pneumatic valve 313, the sixth pneumatic valve 333, the eighteenth pneumatic valve 713 and the twenty-first pneumatic valve 733 are all foam water mixture branch pipe power valves.The starting end of the foam water mixture main pipe is provided with a foam water mixture main pipe power valve, the first foam water mixture main pipe 3 is provided with an eighth pneumatic valve 35, and the second foam water mixture main pipe 7 is provided with a twenty-third pneumatic valve 75, both the eighth pneumatic valve 35 and the twenty-third pneumatic valve 75 are foam water mixture main pipe power valves; the foam system fire-fighting water inlet pipe is provided with a foam system fire-fighting water inlet pipe power valve for controlling the water inlet, the first foam system fire-fighting water inlet pipe 1 is provided with a first pneumatic valve 11, and the second foam system fire-fighting water inlet pipe 5 is provided with a sixteenth pneumatic valve 51, both the first pneumatic valve 11 and the sixteenth pneumatic valve 51 are foam system fire-fighting water inlet pipe power valves, for example, when the foam liquid in the first fire-fighting foam tank 2 is exhausted, the first pneumatic valve 11 and the eighth pneumatic valve 35 are closed. The foam water mixture section power valve, the foam water mixture branch pipe power valve, the foam water mixture sub-branch pipe power valve, the foam system fire-fighting water inlet pipe power valve and the foam water mixture main pipe power valve are all electrically connected with the control system.
[0019] Referring to Figures 1-4 Similar to the foam fire extinguishing system, each set of water spray fire extinguishing system includes a spray water main pipe, the spray water in the spray water main pipe comes from a fire pump (not shown in the figure), and the fire pump of the water spray fire extinguishing system can be shared with the fire pump of the foam fire extinguishing system. Specifically, the water spray fire extinguishing system adjacent to the first normal pressure gasoline tank area 100 and the first normal pressure diesel tank area 200 includes a first spray water main pipe 4, and the water spray fire extinguishing system adjacent to the second normal pressure gasoline tank area 300 and the second normal pressure diesel tank area 400 includes a second spray water main pipe 8; each normal pressure gasoline tank area and normal pressure diesel tank area is provided with a spray water branch pipe connected with the spray water main pipe, and the spray water branch pipe is connected with the spray water pipeline on each normal pressure gasoline tank and normal pressure diesel tank body through a spray water sub-branch pipe. Specifically, the first normal pressure gasoline tank area 100 is provided with a first spray water branch pipe 41 connected with the first spray water main pipe 4, the first normal pressure diesel tank area 200 is provided with a second spray water branch pipe 43 connected with the first spray water main pipe 4, the second normal pressure gasoline tank area 300 is provided with a fourth spray water branch pipe 83 connected with the second spray water main pipe 8, and the second normal pressure diesel tank area 400 is provided with a third spray water branch pipe 81 connected with the second spray water main pipe 8. The first spray water branch pipe 41 is connected with the spray water pipeline on the first normal pressure gasoline tank 10 body through a first spray water sub-branch pipe 412, the second spray water branch pipe 43 is connected with the spray water pipeline on the first normal pressure diesel tank 20 body through a second spray water sub-branch pipe 432, the third spray water branch pipe 81 is connected with the spray water pipeline on the second normal pressure diesel tank 40 body through a third spray water sub-branch pipe 812, and the fourth spray water branch pipe 83 is connected with the spray water pipeline on the second normal pressure gasoline tank 30 body through a fourth spray water sub-branch pipe 832, as shown in Figure 4As shown, taking the first atmospheric gasoline tank 10 as an example, the first atmospheric gasoline tank 10 is provided with at least one tank body spray water pipe 102 connected with the first spray water branch pipe 412. The tank body spray water pipe 102 can be provided with two or more than two pipes. The tank body spray water pipe 102 is usually also connected with multiple spray water branch pipes on the tank body. The spray water branch pipes are also provided with spray heads and other accessories (not shown in the figure). This is a conventional design in the field. The remaining atmospheric oil tanks are designed in the same way from the spray water branch pipes to the tank body spray water pipes.
[0020] With reference to Figures 1-4Similar to the foam fire extinguishing system, the two sets of water spray fire extinguishing system are connected, that is, the first spray water main pipe 4 is connected with the second spray water main pipe 8, and each spray water branch pipe is provided with a spray water branch pipe power valve for controlling the spray water from the spray water main pipe into the spray water branch pipe. The ninth pneumatic valve 411 is arranged on the first spray water branch pipe 41, the twelfth pneumatic valve 431 is arranged on the second spray water branch pipe 43, the twenty-fourth pneumatic valve 811 is arranged on the third spray water branch pipe 81, and the twenty-seventh pneumatic valve 831 is arranged on the fourth spray water branch pipe 83. The ninth pneumatic valve 411, the twelfth pneumatic valve 431, the twenty-fourth pneumatic valve 811 and the twenty-seventh pneumatic valve 831 are all spray water branch pipe power valves. The spray water main pipe is provided with a plurality of spray water section power valves for controlling the on-off of the spray water main pipe. The eleventh pneumatic valve 42 and the fourteenth pneumatic valve 44 are arranged on the first spray water main pipe 4, and the twenty-sixth pneumatic valve 82 and the twenty-ninth pneumatic valve 84 are arranged on the second spray water main pipe 8. The eleventh pneumatic valve 42, the fourteenth pneumatic valve 44, the twenty-sixth pneumatic valve 82 and the twenty-ninth pneumatic valve 84 are all spray water section power valves. The spray water section power valves can also be arranged on both sides of the spray water branch pipe. Taking the tank fire in the first normal pressure gasoline tank area 100 as an example, assuming that the distance between the fire tank in the first normal pressure gasoline tank area 100 and the first normal pressure diesel tank area 200 is relatively short, and the normal pressure tanks in the first normal pressure gasoline tank area 100 and the first normal pressure diesel tank area 200 need to be sprayed with water for cooling, the second normal pressure gasoline tank area 300 and the second normal pressure diesel tank area 400 are relatively far away from the first normal pressure gasoline tank area 100, and do not need to be sprayed with water for cooling. At this time, the fourteenth pneumatic valve 44 is closed, the eleventh pneumatic valve 42, the ninth pneumatic valve 411 and the twelfth pneumatic valve 431 are opened, and the spray water in the first spray water main pipe 4 enters the first spray water branch pipe 41 and the second spray water branch pipe 43. If the distance between the fire tank in the first normal pressure gasoline tank area 100 and the first normal pressure diesel tank area 200 is relatively far, the first normal pressure diesel tank area 200 does not need to be sprayed with water for cooling, the eleventh pneumatic valve 42 is closed, and the spray water in the first spray water main pipe 4 only enters the first spray water branch pipe 41, which can shorten the time from the fire to the water spray cooling. Assuming that the water source of the spray water comes from the fire pool, when the water in the fire pool is less, another set of spray water of the water spray fire extinguishing system needs to be used. The eleventh pneumatic valve 42, the fourteenth pneumatic valve 44, the twenty-sixth pneumatic valve 82 and the twenty-ninth pneumatic valve 84 are all opened, and the spray water in the second spray water main pipe 8 can enter the first spray water branch pipe 41 and the second spray water branch pipe 43. At this time, the ninth pneumatic valve 411 and the twelfth pneumatic valve 431 are opened, and the twenty-fourth pneumatic valve 811 and the twenty-seventh pneumatic valve 831 are closed.The spray water branch pipe is provided with a spray water branch pipe power valve for controlling the spray water from the spray water branch pipe into the spray water branch pipe, the first spray water branch pipe 412 is provided with a tenth pneumatic valve 413 and a third check valve 414, the second spray water branch pipe 432 is provided with a thirteenth pneumatic valve 433 and a fourth check valve 434, the third spray water branch pipe 812 is provided with a twenty-fifth pneumatic valve 813 and a seventh check valve 814, the fourth spray water branch pipe 832 is provided with a twenty-eighth pneumatic valve 833 and an eighth check valve 834, the tenth pneumatic valve 413, the thirteenth pneumatic valve 433, the twenty-fifth pneumatic valve 813 and the twenty-eighth pneumatic valve 833 are all spray water branch pipe power valves. The starting end of the spray water main pipe is provided with a spray water main pipe power valve, the first spray water main pipe 4 is provided with a fifteenth pneumatic valve 45, and the second spray water main pipe 8 is provided with a thirtieth pneumatic valve 85, the fifteenth pneumatic valve 45 and the thirtieth pneumatic valve 85 are all spray water main pipe power valves, for example, when the oil tank in the first normal pressure gasoline tank area 100 needs to use the water in the second spray water main pipe 8 to cool the tank body, the fifteenth pneumatic valve 45 is closed. The spray water section power valve, the spray water branch pipe power valve, the spray water branch pipe power valve and the spray water main pipe power valve are electrically connected with the control system. The normal pressure tank mainly relies on the foam fire extinguishing, and the water spray mainly plays a role in cooling the oil tank, so that one set of water spray fire extinguishing system can be used for the four finished oil tank areas of the utility model, and the spray water pipeline can also be provided with no spray water section power valve and / or spray water branch pipe power valve.
[0021] It should be noted that: the actual pipeline is also provided with manual valves, filters, check valves, pressure gauges and other accessories, which belong to the conventional settings in the field and are not shown in the drawings or the text.
[0022] Working process: take a first atmospheric gasoline tank 10 in the first atmospheric gasoline tank area 100 as an example, the fire tank adopts foam and water spray fire extinguishing, the other oil tanks in the first atmospheric gasoline tank area 100 and the three first atmospheric diesel tanks 20 in the first atmospheric diesel tank area 200 close to the first atmospheric gasoline tank area 100 are water spray cooling, the rest of the oil tank is not cooled. The valve on the pipeline of the foam fire extinguishing system and the water spray fire extinguishing system is in the open state in the normal state, when the monitoring system finds that the first atmospheric gasoline tank 10 in the first atmospheric gasoline tank area 100 is on fire, the information such as the position number of the fire tank is transmitted to the control system, the control system opens the fire pump of the foam fire extinguishing system close to the first atmospheric gasoline tank area 100 and the first atmospheric diesel tank area 200, closes the fourth pneumatic valve 32, closes the third pneumatic valve 313 on the first foam water mixture branch pipe 312 connected with the rest of the first atmospheric gasoline tank 10 in the first atmospheric gasoline tank area 100 except the fire tank, the foam system enters the first foam system fire water inlet pipe 1, part of the water enters the first fire foam tank 2 through the first foam tank inlet pipe 21, the generated foam liquid enters the first foam system fire water inlet pipe 1 through the first foam liquid outlet pipe 22, the foam liquid mixes with the water in the first foam system fire water inlet pipe 1 to form foam water mixture which enters the first foam water mixture main pipe 3, the foam water mixture in the first foam water mixture main pipe 3 can only enter the first foam water mixture branch pipe 31, the foam water mixture in the first foam water mixture branch pipe 31 can only enter the first foam water mixture branch pipe 312 connected with the fire tank, then the foam water mixture generates foam to extinguish the fire of the fire tank. After the fire, the foam water mixture does not need to fill all the foam water mixture main pipe and branch pipe, only needs to fill part of the foam water mixture main pipe and branch pipe, which shortens the time required from discovering the fire to extinguishing the fire by foam. If the foam agent in the first fire foam tank 2 is exhausted, another set of foam fire extinguishing system is needed to extinguish the fire, start another set of foam fire extinguishing system, the foam liquid generated by the second fire foam tank 6 enters the second foam water mixture main pipe 7, open the fourth pneumatic valve 32, close the eighth pneumatic valve 35, the fifth pneumatic valve 331, the twentieth pneumatic valve 731 and the seventeenth pneumatic valve 711, the foam water mixture passes through the second foam water mixture main pipe 7, the first foam water mixture main pipe 3, the first foam water mixture branch pipe 31, and then the first foam water mixture branch pipe 312 connected with the fire tank to extinguish the fire of the fire tank, which prolongs the time of foam fire extinguishing and improves the fire disposal capacity and stability of the fire fighting system.After discovering the fire, the fire pumps of the water spray fire extinguishing system near the first atmospheric pressure gasoline tank area 100 and the first atmospheric pressure diesel tank area 200 are started simultaneously, the fire pumps of the water spray fire extinguishing system can be shared with the fire pumps of the foam fire extinguishing system or be separately arranged, the fourteenth pneumatic valve 44 and the thirteenth pneumatic valve 433 on the second spray water branch pipe 432 connected with the three first atmospheric pressure diesel tanks 20 away from the first atmospheric pressure gasoline tank area 100 in the first atmospheric pressure diesel tank area 200 are closed, the spray water passes through the first spray water main pipe 4, the first spray water branch pipe 41, the second spray water branch pipe 43, the first spray water branch pipe 412 and the second spray water branch pipe 432, and then the oil tanks in the first atmospheric pressure gasoline tank area 100 and the first atmospheric pressure diesel tank area 200 near the fire tank and needing water spraying are cooled, if the water of the water spray fire extinguishing system comes from the fire pool, when the water quantity of the fire pool is reduced, another set of water spray fire extinguishing system can be used to spray water and cool the oil tanks, the fourteenth pneumatic valve 44 is opened, the twenty-fourth pneumatic valve 811 and the twenty-seventh pneumatic valve 831 are closed, and the fifteenth pneumatic valve 45 is closed, the spray water passes through the second spray water main pipe 8 and the first spray water main pipe 4, enters the first spray water branch pipe 41 and the second spray water branch pipe 43, and then the oil tanks needing water spraying and cooling are sprayed and cooled, the water spraying time of the water spray fire extinguishing system is prolonged, and the fire extinguishing capacity and stability of the water spray fire extinguishing system are improved. The utility model discloses discover the fire through the monitoring system, and the power valve on the foam fire extinguishing system and the water spray fire extinguishing system pipeline is opened and closed automatically through the control system, so that the emergency response time from discovering the fire to implementing fire extinguishing is reduced.
[0023] The utility model discloses a product oil tank area atmospheric tank foam and water spray fire extinguishing system, connect two sets of foam water mixed solution main pipes of foam fire extinguishing system for extinguishing fire of multiple product oil tank areas, make the foam liquid of two sets of foam fire extinguishing system supplement each other, enhance the fire accident disposal capacity of fire extinguishing system, set up the power valve of control pipeline on and off on the foam water mixed solution main pipe, branch pipe, branch pipe of foam fire extinguishing system, and the control system automatically controls the opening and closing of power valve, when the monitoring system discovers the fire, the control system automatically controls the opening and closing of power valve, shortens the emergency response time, and the foam water mixed solution only needs to fill part foam water mixed solution pipeline and can spray the foam fire extinguishing of fire tank, need not fill all foam water mixed solution pipeline, shorten the time from discovering the fire to foam fire extinguishing. The utility model discloses the fire extinguishing system is suitable for the petrochemical enterprise that multiple product oil tank areas and more than two sets of foam fire extinguishing system are arranged in factory area.
Claims
1. A foam and water spray fire extinguishing system for atmospheric tank in a product oil tank farm, comprising two sets of foam fire extinguishing systems for extinguishing fire in at least two atmospheric gasoline tank farms and / or at least two diesel tank farms and at least one set of water spray fire extinguishing system, each set of the foam fire extinguishing system is for extinguishing fire in one atmospheric gasoline tank farm and / or one atmospheric diesel tank farm, each set of the foam fire extinguishing system comprises a foam system fire water inlet pipe and a fire foam tank, a water inlet of the fire foam tank is connected with the foam system fire water inlet pipe through a foam tank water inlet pipe, a foam liquid outlet of the fire foam tank is connected with the foam system fire water inlet pipe through a foam liquid outlet pipe, and the foam liquid outlet pipe and the foam system fire water inlet pipe are connected at their ends to form a foam water mixture main pipe, each of the atmospheric gasoline tank farm or the atmospheric diesel tank farm is provided with a foam water mixture branch pipe connected with the foam water mixture main pipe, and the foam water mixture branch pipe is connected with a foam water mixture pipeline on a tank body of the atmospheric gasoline tank or the atmospheric diesel tank through a foam water mixture branch pipe; the water spray fire extinguishing system comprises a spray water main pipe, each of the atmospheric gasoline tank farm or the atmospheric diesel tank farm is provided with a spray water branch pipe connected with the spray water main pipe, and the spray water branch pipe is connected with a spray water pipeline on the tank body of the atmospheric gasoline tank or the atmospheric diesel tank through a spray water branch pipe, characterized in that: Each of the foam water mixture branch pipes is provided with a foam water mixture branch pipe power valve for controlling the foam water mixture from the foam water mixture main pipe into the foam water mixture branch pipe, the foam water mixture main pipes of the two sets of foam fire extinguishing systems are communicated, the foam water mixture main pipe is provided with a plurality of foam water mixture section power valves for controlling the on-off of the foam water mixture main pipe, and the foam water mixture branch pipes are provided with foam water mixture branch pipe power valves for controlling the foam water mixture from the foam water mixture branch pipe into the foam water mixture branch pipe.
2. The finished product tank farm atmospheric tank foam and water deluge fire protection system of claim 1, characterized by: The starting end of the foam water mixture main pipe is provided with a foam water mixture main pipe power valve, the foam system fire water inlet pipe is provided with a foam system fire water inlet power valve for controlling the water inlet, and the foam water mixture main pipe power valve and the foam system fire water inlet power valve are electrically connected with the control system.
3. The finished product tank farm atmospheric tank foam and water deluge fire protection system of claim 1, wherein: Each of the spray water branch pipes is provided with a spray water branch pipe power valve for controlling the spray water from the spray water main pipe into the spray water branch pipe, the spray water main pipe is provided with a plurality of spray water section power valves for controlling the on-off of the spray water main pipe, and the spray water branch pipes are provided with spray water branch pipe power valves for controlling the spray water from the spray water branch pipe into the spray water branch pipe, and the spray water section power valves, the spray water branch pipe power valves and the spray water branch pipe power valves are electrically connected with the control system.
4. The finished oil tank farm atmospheric tank foam and water deluge fire protection system according to any one of claims 1-3, characterized by: The foam water mixture branch pipes and the spray water branch pipes are all provided with check valves.