Fireproof automatic control system for oil smoke pipe
Through the design of the oil fume duct fire prevention automatic control system, the use of sensor monitoring and automatic isolation valves and spray towers and other components has solved the problems of oil fume duct blockage and fire risks, and achieved efficient fire prevention and control and oil fume treatment.
Patent Information
- Application Number
- CN202421541014.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-07-02
AI Technical Summary
Existing oil fume ducts are easily clogged by oil mist and dust, and there is a risk of fire at high temperatures. Existing devices are difficult to effectively prevent the spread of fire.
A fume duct fire prevention and control system was designed, including an alarm signal console, an alarm unit, and an oil fume treatment unit. Sensors were used to monitor temperature and negative pressure, and components such as automatic isolation valves and spray towers were used to achieve automatic fire extinguishing and channel isolation. Multi-stage fume treatment was used to reduce fire hazards.
Through multi-level processing and automatic isolation, the oil pollution in the flue gas duct is significantly reduced, the fire is identified and the spread of the fire is blocked at the first time, the fire risk is reduced, the oil fume emission is ensured to be qualified, and the spread of fire is reduced.
Smart Images
Figure CN223474334U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a fire prevention and automatic control system for oil fume pipes. Background Technology
[0002] In the catering industry and some industrial sectors, significant amounts of oil fumes or dust are generated, which are typically handled using fume extraction systems. These systems usually consist of a fan and exhaust ducts. Existing exhaust ducts are made of metals such as stainless steel or aluminum, as well as plastic. Because catering and industrial fume extraction ducts generate large amounts of oil mist and dust, they are prone to blockages and oil dripping, posing a fire risk at high temperatures. Summary of the Invention
[0003] The main objective of this invention is to provide a fire prevention and automatic control system for oil fume pipes.
[0004] The technical solution adopted by this utility model to solve its technical problem is:
[0005] An automatic fire control system for kitchen exhaust ducts includes an alarm signal control console, an alarm unit, and at least one set of kitchen exhaust treatment units. Each kitchen exhaust treatment unit includes a valve port installed on the kitchen exhaust duct, with an automatic shut-off valve above the valve port. The valve port is connected to a spray tower via a pipe. Gas exiting the spray tower enters a pluggable filter and then enters an activated carbon box. Finally, it is discharged to the outside by a blower. The automatic shut-off valve, spray tower, pluggable filter, activated carbon box, and blower are all equipped with sensors and connected to the alarm signal control console, which is connected to the alarm unit.
[0006] In a preferred embodiment, the alarm signal control console includes a fire central control cabinet and a monitor.
[0007] In a preferred embodiment, the alarm unit includes a public duty room alarm and a production duty room alarm, both of which are audible and visual alarms.
[0008] In a preferred embodiment, a temperature sensor and an automatic fire sprinkler drainage solenoid valve are also included.
[0009] In a preferred embodiment, the spray tower is connected to a spray tank.
[0010] In a preferred embodiment, multiple sets of fume treatment units share the same spray water tank.
[0011] In a preferred embodiment, the pipeline between the spray tower and the spray tank is configured such that the water from the spray tank enters the top of the spray tower through the spray pump and is sprayed downwards from the top of the spray tower, while the water at the bottom of the spray tower flows back into the spray tank; the gas enters from the middle and lower part of the spray tower, is sprayed, and then exits from the top.
[0012] In a preferred embodiment, a negative pressure sensor is also provided between the automatic isolation valve and the spray tower.
[0013] In a preferred embodiment, a smoke sensor is also provided on the piping of the activated carbon box and the blower.
[0014] Compared with the prior art, this technical solution has the following advantages:
[0015] This utility model includes at least one set of oil fume treatment unit, which greatly reduces the amount of oil stains in the flue gas duct.
[0016] 2. This utility model's fume treatment unit is equipped with temperature sensing probes (sensors) in multiple locations. When a fire occurs, the temperature sensors...
[0017] The detector can detect the fire immediately and promptly report it to the central controller to close the air valve of the branch pipe, preventing the fire from spreading to other areas.
[0018] The automatic shut-off valve installed above the valve port can automatically isolate the passage between the valve branch pipe and the main pipe, preventing the fire from spreading to other areas.
[0019] area.
[0020] 4. This utility model includes an alarm signal control console, an alarm, and at least one set of fume treatment units. The fume treatment units can process the fumes into qualified gaseous emissions through multiple stages, reducing fire hazards. Furthermore, in case of an accident, an alarm can be triggered via the alarm signal control console and the alarm. Attached Figure Description
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] Figure 1 This is a structural schematic diagram of the oil fume pipe fire prevention system of this utility model.
[0023] Figure 2 This is a schematic diagram of the fume treatment unit.
[0024] In the picture
[0025] 100-Alarm Signal Control Panel
[0026] 200-Alarm Unit
[0027] 210 - Public duty room alarm; 220 - Production duty room alarm; 230 - Public duty room; 240 - Production duty room
[0028] 300-Fume Treatment Unit
[0029] 301 - Temperature sensor; 302 - Negative pressure sensor
[0030] 310 - Valve port; 320 - Isolation valve; 330 - Spray tower; 340 - Plug-in filter screen; 350 - Activated carbon box
[0031] 360-Blower
[0032] 370 - Public spray water tank; 371 - Spray pump; 372 - pH detection port; 373 - Chemical dosing port
[0033] 400-Fire Automatic Sprinkler Drainage Solenoid Valve Detailed Implementation
[0034] See Figure 1 This utility model's oil fume duct fire prevention and automatic control system includes an alarm signal control console 100, an alarm unit 200, and an oil fume treatment unit 300. Multiple oil fume treatment units 300 are included, each installed in different workshops or rooms. It also includes multiple automatic fire sprinkler drainage solenoid valves 400, installed in various locations within the workshop. The alarm signal control console 100 includes a fire central control cabinet and a monitor (computer).
[0035] See Figure 2 Each fume treatment unit 300 includes a valve port 310 located on the fume duct, an automatic shut-off valve 320 located above the valve port 310, and the valve port is connected to the spray tower 330 via a pipe. A temperature sensor 301 and a negative pressure sensor 302 are also provided between the automatic shut-off valve 320 and the spray tower 330.
[0036] The spray tower 330 is connected to a shared spray water tank 370, which refers to a single spray water tank shared by multiple oil fume treatment units. The spray water tank 370 is equipped with a pH detection port 372 and a chemical dosing port 373.
[0037] Water from the spray tank 370 enters the top of the spray tower 330 via the spray pump 371 and is sprayed downwards from the top of the tower. Water at the bottom of the tower then flows back into the spray tank 370. Gas enters from the lower middle part of the spray tower 330, is sprayed, and exits from the top. During this process, residual oil fume impurities (such as oil and particulate matter) are further removed, and the gas temperature is significantly reduced.
[0038] The gas exiting the spray tower 330 enters the plug-in filter 340, and then the activated carbon box 350. The plug-in filter 340 and the activated carbon box 350 further remove oil and smoke impurities from the gas before it is finally discharged by the blower 360. A smoke sensor 303 is also installed on the pipelines of the activated carbon box 350 and the blower 360. If a malfunction occurs in the preceding equipment, causing the gas passing through it to fail to meet standards, an alarm will be triggered promptly.
[0039] Automatic isolation valve 320, spray tower 330, pluggable filter 340, activated carbon box 350, and blower 360 are all equipped with sensors and connected to alarm signal control console 100. Alarm signal control console 100 then sends the signal to alarm unit 200, which includes a public duty room alarm 210 and a production duty room alarm 220. Both the public duty room alarm 210 and the production duty room alarm 220 are audible and visual alarms, and are respectively installed in the public duty room 230 and the production duty room 240.
[0040] This utility model is used as an example of installation in a plastic granulation extruder. The usage of this utility model is as follows:
[0041] Each set of plastic granulation extruders has a temperature sensor 301 installed on the upper smoke duct of the oil fume separation device. During normal production, the temperature is 40-50 degrees Celsius. In the event of a fire, the temperature will rapidly rise to 80-100 degrees Celsius. At this point, the temperature sensor will immediately send feedback to the central controller of the alarm signal control panel 100. This will close the air valves of each branch pipe, automatically isolating the branch pipes from the main pipe to prevent the fire from spreading to other areas. Simultaneously, the alarm 220 in the production duty room will be activated to notify production personnel to handle the situation immediately. Finally, the central control cabinet will interlock and stop the rooftop smoke exhaust fan, ceasing external emissions. Based on the fire situation downstairs and the riser temperature, the automatic fire sprinkler drainage solenoid valve 400 will be controlled. If the riser temperature exceeds 100 degrees Celsius, indicating a large fire, the central control program will activate the automatic fire sprinkler drainage solenoid valve 400 to extinguish the fire. Otherwise, if the conditions are insufficient, indicating a less severe fire, the fire sprinkler system will not be activated.
[0042] The above description is only a preferred embodiment of the present utility model, and therefore cannot be used to limit the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the present utility model patent and the contents of the specification should still fall within the scope of the present utility model.
Claims
1. A fire prevention and automatic control system for kitchen exhaust pipes, characterized in that: It includes an alarm signal control console, an alarm unit, and at least one set of fume treatment units; each set of fume treatment units includes a valve port installed on the fume duct, an automatic shut-off valve installed above the valve port, and the valve port is connected to a spray tower through a pipe. The gas coming out of the spray tower enters a pluggable filter, then enters an activated carbon box, and finally is discharged to the outside by a blower; the automatic shut-off valve, spray tower, pluggable filter, activated carbon box, and blower are all equipped with sensors and connected to the alarm signal control console, which is connected to the alarm unit.
2. The automatic fire control system for kitchen exhaust pipes as described in claim 1, characterized in that: It also includes temperature sensors and automatic fire sprinkler and drainage solenoid valves.
3. The automatic fire control system for kitchen exhaust pipes as described in claim 1, characterized in that: The alarm signal control console includes a fire central control cabinet and a monitor.
4. The automatic fire control system for kitchen exhaust pipes as described in claim 1, characterized in that: The alarm unit includes a public duty room alarm and a production duty room alarm, both of which are audible and visual alarms.
5. The automatic fire control system for kitchen exhaust pipes as described in claim 1, characterized in that: The spray tower is connected to a spray water tank.
6. The automatic fire control system for kitchen exhaust pipes as described in claim 5, characterized in that: Multiple fume treatment units share the same spray water tank.
7. The automatic fire control system for kitchen exhaust pipes as described in claim 1, characterized in that: The piping between the spray tower and the spray tank is configured as follows: the water from the spray tank enters the top of the spray tower through the spray pump and is sprayed downwards from the top of the spray tower; the water at the bottom of the spray tower then flows back into the spray tank; the gas enters from the middle and lower part of the spray tower, is sprayed, and then exits from the top.
8. The automatic fire control system for kitchen exhaust pipes as described in claim 1, characterized in that: A negative pressure sensor is also installed between the automatic isolation valve and the spray tower.
9. The automatic fire control system for kitchen exhaust pipes as described in claim 1, characterized in that: Smoke sensors are also installed on the pipes of the activated carbon box and the blower.