Infrared light detection system for petroleum and petrochemical fires
By combining an infrared light detection system with an audible and visual alarm unit and a dry powder fire extinguishing unit, the problem of rapid and reliable fire extinguishing of alkyl aluminum fires in the petrochemical industry has been solved, achieving fire extinguishing effects with low maintenance costs and low false triggering.
Patent Information
- Application Number
- CN202522485763.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-24
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-11-24
AI Technical Summary
Existing fire suppression systems in the petrochemical industry are inadequate in terms of response speed, reliability, and maintenance costs. In particular, for fires involving metal-organic compounds such as alkyl aluminum, traditional systems are prone to false triggering, have high maintenance costs, and are difficult to extinguish quickly and effectively in small spaces.
The system employs an infrared light detection system, combined with an audible and visual alarm unit and a dry powder extinguishing unit. It uses an infrared flame detector and a trigger determination device to control the release of dry powder extinguishing agent from the dry powder extinguishing tank. The system has a simple structure, is easy to deploy, and the extinguishing tank can be depressurized under normal conditions, reducing the risk of leakage and accidental triggering.
It achieves rapid and accurate fire suppression response, reduces system maintenance costs and the risk of false triggering, and is suitable for rapid fire suppression needs in complex spaces.
Smart Images
Figure CN223828113U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of petrochemical industry and fire fighting technology, and particularly relates to an infrared light detection system for petrochemical fire. BACKGROUND
[0002] In the field of petrochemical industry, metal organic compounds such as alkyl aluminum (e.g. triethyl aluminum, trimethyl aluminum, diisobutyl aluminum hydride) are extremely flammable, and the burning speed is fast and the temperature is high. The traditional fire extinguishing system often responds slowly and is easy to be triggered by mistake, and cannot effectively respond. The existing small space fire extinguishing relies on long-term pressure pipeline or electric drive control unit. The pressure system is prone to leakage, pressure loss and false triggering during installation and maintenance, and the maintenance cost is high. The reliability of the pure electric control device is limited in the case of power failure, low temperature or strong electromagnetic interference environment. The structure of some multi-sensing and mobile platform schemes is complex and the cost is high, and it is difficult to realize rapid fire extinguishing in limited spaces such as petrochemical equipment, electrical box and engine compartment. Therefore, the market urgently needs a near-field fire extinguishing system with low power consumption, low maintenance, anti-misreporting and easy arrangement, especially suitable for alkyl aluminum fire extinguishing. SUMMARY
[0003] The purpose of the utility model includes providing an infrared light detection system for petrochemical fire, which can realize rapid fire extinguishing for small space fire in the field of petrochemical industry, especially for alkyl aluminum fire, and is mainly based on infrared light detection and easy to install and maintain.
[0004] The embodiments of the utility model can be implemented as follows:
[0005] In a first aspect, the utility model provides an infrared light detection system for petrochemical fire, which comprises an audible and visual alarm unit and an infrared detection dry powder extinguishing unit, and the infrared detection dry powder extinguishing unit comprises a trigger determination device and an extinguishing tank connected with each other.
[0006] The extinguishing tank stores dry powder extinguishing agent, the trigger determination device comprises an infrared flame detector, a determination unit and a trigger actuator connected in sequence, and the trigger actuator is connected with the extinguishing tank and the audible and visual alarm unit.
[0007] The trigger determination device is used for collecting infrared characteristics of fire, and controlling the extinguishing tank to spray dry powder extinguishing agent and controlling the audible and visual alarm unit to send audible and visual alarm signals.
[0008] In an optional embodiment, the trigger determination device further comprises an auxiliary sensing unit, the auxiliary sensing unit is connected to the determination unit, and the determination unit is used for controlling the trigger actuator to start the extinguishing tank and the audible and visual alarm unit only when the fire signals of the infrared flame detector and the auxiliary sensing unit are received at the same time.
[0009] In an optional embodiment, the auxiliary sensing unit is one or any combination of the following: an ultraviolet flame sensing module, a temperature sensing module, or a visual micro acquisition module.
[0010] In an optional embodiment, the trigger determination device further comprises a manual trigger connected to the fire extinguishing tank, and the manual trigger is operated by a person to start the fire extinguishing tank.
[0011] In an optional embodiment, the system comprises a control device, a plurality of infrared detection dry powder fire extinguishing units, and a plurality of audible and visual alarm units, the plurality of audible and visual alarm units and the plurality of infrared detection dry powder fire extinguishing units are connected to the control device, the control device is used to control the plurality of infrared detection dry powder fire extinguishing units to be partially linked or fully linked, and the control device is used to control the plurality of audible and visual alarm units to be partially linked or fully linked.
[0012] In an optional embodiment, the fire extinguishing tank comprises a powder storage tank, a fire extinguishing pipeline, and a plurality of nozzles connected in sequence, and the plurality of nozzles can be arranged at different positions.
[0013] In an optional embodiment, one trigger determination device is connected to a plurality of fire extinguishing tanks and a plurality of audible and visual alarm units.
[0014] In an optional embodiment, the trigger determination device comprises a plurality of infrared flame detectors, and the determination unit is configured to control the trigger actuator to start the fire extinguishing tank and the audible and visual alarm unit only when a fire signal is received by any one or more of the infrared flame detectors.
[0015] The beneficial effects of the infrared light detection system for petroleum and petrochemical fires provided by the embodiments of the present application include:
[0016] 1. The fire extinguishing tank is started only under the control of the trigger determination device, the fire extinguishing tank can be set to a normal pressure-free and trigger pressure-building mode, which significantly reduces the risk of leakage, failure and false triggering, and has a long service life and low maintenance cost;
[0017] 2. The infrared flame detector is used as the main detection element, and the fire extinguishing tank storing dry powder extinguishing agent is used for fire extinguishing, which is suitable for the field of petroleum and chemical industry, especially for the fire caused by metal organic compounds such as aluminum alkyl, and has the advantages of fast response, accurate detection, high fire extinguishing efficiency, etc.
[0018] 3. The audible and visual alarm unit, the trigger determination device, and the fire extinguishing tank can be arranged according to actual needs on site, the system structure is simple, the arrangement is convenient, and it is more suitable for fire extinguishing in complex spaces. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, based on the embodiments in the present application, all other embodiments obtained without creative labor are within the scope of protection of the present application.
[0020] Figure 1 is a composition block diagram of an infrared light detection system for oil and petrochemical fire provided by the first embodiment of the present application;
[0021] Figure 2 is a composition block diagram of an infrared light detection system for oil and petrochemical fire provided by the second embodiment of the present application;
[0022] Figure 3 is a composition block diagram of a control device.
[0023] Icon: 100 - infrared light detection system for oil and petrochemical fire; 1 - infrared detection dry powder fire extinguishing unit; 11 - trigger determination device; 111 - infrared flame detector; 112 - auxiliary sensing unit; 113 - determination unit; 114 - trigger actuator; 115 - manual trigger; 12 - fire extinguishing tank; 121 - powder storage tank; 122 - fire extinguishing pipeline; 123 - spray head; 2 - audible and visual alarm unit; 3 - control device; 31 - memory; 32 - processor; 33 - network interface. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical scheme in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.
[0025] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0026] It should be noted that: similar numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.
[0027] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0028] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.
[0029] First embodiment:
[0030] Please refer to Figure 1 This embodiment provides an infrared light detection system 100 (hereinafter referred to as the "system") for oil and petrochemical fires. The system includes an audible and visual alarm unit 2 and an infrared detection dry powder fire extinguishing unit 1. The infrared detection dry powder fire extinguishing unit 1 includes a trigger determination device 11 and a fire extinguishing tank 12 connected to each other. The audible and visual alarm unit 2 is also connected to the trigger determination device 11. Thus, the audible and visual alarm unit 2, the trigger determination device 11, and the fire extinguishing tank 12 can be arranged according to the actual needs of the site. The system has a simple structure, is easy to arrange, and is more suitable for fire extinguishing in complex spaces.
[0031] The triggering and determining device 11 is used to collect the infrared characteristics of the flame, control the fire extinguishing canister 12 to release dry powder extinguishing agent, and control the audible and visual alarm unit 2 to emit audible and visual alarm signals. In this way, the system uses the infrared flame detector 111 as the main detection element, and works in conjunction with the fire extinguishing canister 12 containing dry powder extinguishing agent to extinguish fires. It has the advantages of fast response, accurate detection, and high fire extinguishing efficiency, especially for fires caused by metal-organic compounds such as alkyl aluminum in the petrochemical field.
[0032] Among them, the fire extinguishing tank 12 can be set to a normal no-pressure mode and a trigger-based pressure build-up mode, that is, the fire extinguishing tank 12 is only activated under the control of the trigger determination device 11, which significantly reduces the risk of leakage, failure and false triggering, and has a long service life and low maintenance cost.
[0033] Specifically, the fire extinguishing tank 12 includes a powder storage tank 121, a fire extinguishing pipeline 122, and a nozzle 123 connected in sequence. The powder storage tank 121 stores dry powder extinguishing agent. One or more nozzles 123 can be connected to the fire extinguishing pipeline 122, and multiple nozzles 123 can be arranged in different locations to achieve multi-directional fire extinguishing. The fire extinguishing pipeline 122 uses a heat-resistant and flame-retardant flexible hose or a metal braided flexible hose.
[0034] Among them, the nozzle 123 has an adjustable spray direction and can be finely adjusted according to the predetermined risk point. The nozzle 123 has a cone-shaped, fan-shaped or slit-shaped nozzle hole to form a dry powder extinguishing agent to achieve a surface coverage effect on the flame.
[0035] The trigger determination device 11 includes an infrared flame detector 111 (which may be a narrowband IR flame sensitive device), a determination unit 113 (which may be a low-power MCU or other hardware with timing control logic) and a trigger actuator 114 (which may be an electromechanical actuator or a mechanical force multiplier trigger) connected in sequence. The trigger actuator 114 is connected to the fire extinguishing canister 12 and the audible and visual alarm unit 2.
[0036] Specifically, the front end of the infrared flame detector 111 is equipped with a narrow-band filter or a light shield; the determination unit 113 is equipped with a dynamic threshold compensation and anti-jitter timing circuit to suppress interference from ambient heat sources and stray light, and reduce the probability of false triggering.
[0037] The trigger determination device 11 also includes an auxiliary sensing unit 112, which is connected to the determination unit 113. The determination unit 113 only controls the trigger actuator 114 to activate the fire extinguishing canister 12 and the audible and visual alarm unit 2 when it simultaneously receives fire signals from the infrared flame detector 111 and the auxiliary sensing unit 112. In this way, the determination unit 113 performs dual-factor confirmation before activating the fire extinguishing canister 12 and the audible and visual alarm unit 2, thereby reducing the risk of false fire detection caused by interference factors such as sunlight and heat sources.
[0038] The auxiliary sensing unit 112 can be one or any combination of the following: an ultraviolet flame sensing module, a temperature sensing module, or a vision miniature acquisition module. Specifically, the auxiliary sensing unit 112 can be selected from a UV flame detector, a temperature switch, a thermocouple, or a vision module according to application needs. The UV flame detector is used for instantaneous ignition identification and suppression of visible light interference; the temperature switch and thermocouple are used to provide over-temperature fallback criteria; and the vision module is used for local confirmation or evidence retention. In this way, the system integrates a collaborative detection paradigm of infrared + ultraviolet + vision, but this case primarily uses infrared detection with the others as optional enhancements to reduce false alarms.
[0039] The trigger determination device 11 also includes a manual trigger 115, which is connected to the fire extinguishing tank 12. The manual trigger 115 is operated by personnel to activate the fire extinguishing tank 12. For example, in the event of a fire extinguishing tank 12 test or failure of the system's detection instruments, personnel can operate the manual trigger 115 according to the fire situation to activate the fire extinguishing tank 12 for fire extinguishing.
[0040] In an optional embodiment, the trigger determination device 11 includes multiple infrared flame detectors 111. The determination unit 113 is configured to control the trigger actuator 114 to activate the fire extinguishing tank 12 and the audible and visual alarm unit 2 only when it receives a fire signal from any one or more infrared flame detectors 111. For example, in some high-risk fire areas, the fire extinguishing tank 12 and the audible and visual alarm unit 2 can be activated when any one of the infrared flame detectors 111 emits a fire signal. In some low-risk fire areas or areas prone to false alarms, the fire extinguishing tank 12 and the audible and visual alarm unit 2 can be activated only when multiple infrared flame detectors 111 emit fire signals.
[0041] In an optional embodiment, a triggering device 11 can be connected to multiple fire extinguishing canisters 12 and multiple audible and visual alarm units 2. For example, in areas where fires are prone to spread, multiple fire extinguishing canisters 12 and multiple audible and visual alarm units 2 can be set up at different locations to form a firebreak.
[0042] Second embodiment:
[0043] Please refer to Figure 2 This embodiment provides an infrared light detection system 100 (hereinafter referred to as "the system") for oil and petrochemical fires. The difference between the system in the first embodiment is that the system provided in this embodiment has the linkage function of multiple infrared detection dry powder fire extinguishing units 1.
[0044] Specifically, the system includes a control device 3, multiple infrared detection dry powder fire extinguishing units 1, and multiple audible and visual alarm units 2. The multiple audible and visual alarm units 2 and the multiple infrared detection dry powder fire extinguishing units 1 are all connected to the control device 3. The control device 3 is used to control the multiple infrared detection dry powder fire extinguishing units 1 to partially or fully activate, and the control device 3 is used to control the multiple audible and visual alarm units 2 to partially or fully activate.
[0045] The linkage of multiple infrared detection dry powder fire extinguishing units 1 means that, among multiple infrared detection dry powder fire extinguishing units 1 with linkage relationships, when the control device 3 detects the activation of one infrared detection dry powder fire extinguishing unit 1, it controls the other infrared detection dry powder fire extinguishing units 1 with linkage relationships to also activate, regardless of whether a fire signal is detected. In this way, by setting up multiple audible and visual alarm units 2 and multiple infrared detection dry powder fire extinguishing units 1 in multiple areas, the system is more suitable for scenarios where multiple areas are prone to fire spread, and also more suitable for multiple areas that are prone to fire under similar environmental conditions.
[0046] Please refer to Figure 3 The control device 3 includes a memory 31, a processor 32, and a network interface 33 that are interconnected via a system bus. It should be noted that... Figure 3Only the control device 3 with component memory 31, processor 32 and network interface 33 is shown. However, it should be understood that it is not required to implement all the components shown, and more or fewer components may be implemented instead.
[0047] The control device 3 can be a desktop computer, laptop, handheld computer, or cloud server, etc. The control device 3 can interact with the user through a keyboard, mouse, remote control, touchpad, or voice control device.
[0048] The memory 31 includes at least one type of readable storage medium, including flash memory, hard disk, multimedia card, card-type memory (e.g., SD or DX memory), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM), magnetic memory, disk, optical disk, etc.
[0049] In some embodiments, processor 32 may be a central processing unit (CPU), controller, microcontroller, microprocessor, or other data processing chip. Processor 32 is typically used to control the overall operation of control device 3.
[0050] The network interface 33 may include a wireless network interface 33 or a wired network interface 33. The network interface 33 is typically used to establish a communication connection between the control device 3 and other electronic devices.
[0051] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.
Claims
1. An infrared light detection system for oil and petrochemical fires, characterized in that, The system includes an audible and visual alarm unit (2) and an infrared detection dry powder fire extinguishing unit (1). The infrared detection dry powder fire extinguishing unit (1) includes a triggering and determining device (11) and a fire extinguishing canister (12) that are connected to each other. The fire extinguishing tank (12) contains dry powder extinguishing agent. The triggering determination device (11) includes an infrared flame detector (111), a determination unit (113), and a triggering actuator (114) connected in sequence. The triggering actuator (114) is connected to the fire extinguishing tank (12) and the audible and visual alarm unit (2). The triggering determination device (11) is used to collect the infrared characteristics of the flame, control the fire extinguishing canister (12) to release dry powder extinguishing agent, and control the sound and light alarm unit (2) to emit sound and light alarm signals.
2. The infrared light detection system for oil and petrochemical fires according to claim 1, characterized in that, The trigger determination device (11) further includes an auxiliary sensing unit (112), which is connected to the determination unit (113). The determination unit (113) controls the trigger actuator (114) to start the fire extinguishing tank (12) and the audible and visual alarm unit (2) only when it receives fire signals from the infrared flame detector (111) and the auxiliary sensing unit (112) at the same time.
3. The infrared light detection system for oil and petrochemical fires according to claim 2, characterized in that, The auxiliary sensing unit (112) is one or any combination of the following: an ultraviolet flame sensing module, a temperature sensing module, or a visual micro-acquisition module.
4. The infrared light detection system for oil and petrochemical fires according to claim 1, characterized in that, The trigger determination device (11) further includes a manual trigger (115), which is connected to the fire extinguishing tank (12) and is operated by personnel to activate the fire extinguishing tank (12).
5. The infrared light detection system for oil and petrochemical fires according to claim 1, characterized in that, The system includes a control device (3), multiple infrared detection dry powder fire extinguishing units (1) and multiple audible and visual alarm units (2). The multiple audible and visual alarm units (2) and the multiple infrared detection dry powder fire extinguishing units (1) are all connected to the control device (3). The control device (3) is used to control the multiple infrared detection dry powder fire extinguishing units (1) to partially or fully activate. The control device (3) is also used to control the multiple audible and visual alarm units (2) to partially or fully activate.
6. The infrared light detection system for oil and petrochemical fires according to claim 1, characterized in that, The fire extinguishing tank (12) includes a powder storage tank (121), a fire extinguishing pipeline (122), and multiple nozzles (123) connected in sequence, and the multiple nozzles (123) can be arranged in different positions.
7. The infrared light detection system for oil and petrochemical fires according to claim 1, characterized in that, One of the trigger determination devices (11) is connected to multiple fire extinguishing canisters (12) and multiple sound and light alarm units (2).
8. The infrared light detection system for oil and petrochemical fires according to claim 1, characterized in that, The trigger determination device (11) includes a plurality of infrared flame detectors (111). The determination unit (113) is configured to control the trigger actuator (114) to start the fire extinguishing tank (12) and the audible and visual alarm unit (2) only when it receives a fire signal from any one or more of the infrared flame detectors (111).