Glass fiber reinforced plastic electric demisting intelligent fire extinguishing system

Abstract

The utility model relates to a glass fiber reinforced plastic electric demisting intelligent fire extinguishing system which comprises a fire monitoring system. The fire monitoring system comprises a temperature sensing cable, a fire monitoring host and an audible and visual alarm; the temperature sensing cable is uniformly wound on the electric demister body to realize real-time and all-directional monitoring of the whole area of the electric demister, the temperature sensing cable is spirally wound and bound on the surface of the electric demister at an interval of 0.5 m, and the far infrared flame detectors are uniformly arranged in the electric demister and in an insulator chamber at the top of the electric demister. Meanwhile, external spraying water pipes are uniformly arranged at the top of the electric demister, internal spraying water pipes are uniformly arranged in an electric field in the electric demister, full coverage of fire monitoring and spraying of an electric demister area is achieved, audible and visual alarms are arranged on an electric demister platform in a layered mode, field personnel can conveniently find the fire and give an alarm in time, and the safety of the electric demister is improved. Personnel and property losses are reduced to the maximum extent, and real-time and all-directional monitoring of the whole electric demisting area is achieved.

Description

Technical Field

[0001] This utility model relates to the field of fire protection equipment technology, specifically a fiberglass electrostatic precipitator intelligent fire protection system. Background Technology

[0002] In the process of producing acid from smelting flue gas, electrostatic precipitators are used to remove acid mist from the flue gas, thereby purifying the flue gas. Currently, the most widely used electrostatic precipitators are made of fiberglass. However, fiberglass is a flammable material, making it particularly prone to fire during the equipment manufacturing and installation stages. Once fiberglass catches fire, it is very difficult to extinguish until it is completely burned. If a fire can be detected and dealt with early, it can be nipped in the bud, ensuring the safety of the equipment. In the current technology, there is a lack of real-time and all-round monitoring of the entire electrostatic precipitator area, which makes it impossible to effectively prevent and reduce the loss of life and property caused by fire.

[0003] For example, the authorized patent document with application number CN201820289725.0 discloses a conductive fiberglass electrostatic precipitator, including a precipitator body and an insulating box. An upper air chamber is fixedly installed on the top of the precipitator body, a base is fixedly installed on the upper end of the upper air chamber, and the insulating box is fixedly installed on the upper surface of the base. An air outlet is opened in the middle of the base. A middle air chamber is fixedly installed at the lower end of the upper air chamber, an anode tube bundle is fixedly installed in the middle of the inner cavity of the middle air chamber, a carrier is fixedly installed at the lower end of the anode tube bundle, a cathode system is fixedly installed on the carrier, and a lower air chamber is fixedly installed at the lower end of the middle air chamber. This conductive fiberglass electrostatic precipitator has a reasonable structure and is easy to use. Improvements have been made to the air inlet and outlet of the precipitator to reduce resistance and ensure uniform gas distribution. This design ensures stable airflow in the middle air chamber, prevents the anode tube bundle from shaking, and results in high demisting efficiency, reliable operation, and long service life.

[0004] The aforementioned patents lack real-time and comprehensive monitoring of the entire electrostatic precipitator area, making it impossible to effectively prevent and reduce personnel and property losses caused by fire. Therefore, we need to provide a fiberglass electrostatic precipitator intelligent fire protection system. Utility Model Content

[0005] The purpose of this utility model is to provide a fiberglass electrostatic precipitator intelligent fire protection system. This system achieves real-time and all-round monitoring of the entire electrostatic precipitator area. Temperature-sensing cables are spirally wound and bound to the electrostatic precipitator surface at 0.5-meter intervals. Far-infrared flame detectors are evenly distributed inside the electrostatic precipitator and in the top insulator chamber. Simultaneously, external spray pipes are evenly distributed on the top of the electrostatic precipitator, and internal spray pipes are evenly distributed within the internal electric field of the electrostatic precipitator. This achieves full coverage of fire monitoring and spraying within the electrostatic precipitator area. Audible and visual alarms are layered on the electrostatic precipitator platform, facilitating timely fire detection and alarm issuance by on-site personnel, minimizing personnel and property losses. This system achieves real-time and all-round monitoring of the entire electrostatic precipitator area, solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fiberglass electrostatic precipitator intelligent fire protection system, comprising:

[0007] Fire monitoring system;

[0008] The fire monitoring system includes a heat-sensing cable, a fire monitoring host, and an audible and visual alarm.

[0009] The temperature sensing cable is evenly wound around the electrostatic precipitator body, the fire monitoring host is installed on the top of the electrostatic precipitator body and communicates with the DCS via the network, and the audible and visual alarms are arranged in layers on the electrostatic precipitator platform and the DSC room.

[0010] Preferably, the fire monitoring host includes a pulse light source, an amplifier, a wavelength division multiplexing module, and a CPU processing unit.

[0011] Preferably, it also includes a water supply system and a sprinkler system. The spray port of the sprinkler system is connected to the internal and external cleaning water pipes of the electrostatic precipitator. The water inlet port of the sprinkler system is connected to the water supply system, which is a fire pump water supply pipeline. A check valve is provided between the spray port of the sprinkler system and the water supply pipeline at the top of the electrostatic precipitator.

[0012] Preferably, the temperature sensing cable is spirally wound and tied to the electrostatic defogging surface at intervals of 0.5 meters, with one end connected to a pulse light source emitter and the other end connected to a wavelength division multiplexing module, a detection module, and a CPU processing unit.

[0013] Preferably, the water supply system includes a water pump, a water supply pipeline, and an electric butterfly valve, a pressure transmitter, and a manual check valve installed on the water pipeline.

[0014] Preferably, the spraying system includes an internal water spray pipe, an external water spray pipe, and nozzles, with the nozzles evenly distributed on the internal and external water spray pipes.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention enables real-time and all-round monitoring of the entire electrostatic precipitator area. Temperature-sensing cables are spirally wound and bound to the electrostatic precipitator surface at 0.5-meter intervals. Far-infrared flame detectors are evenly distributed inside the electrostatic precipitator and in the top insulator chamber. Simultaneously, external spray pipes are evenly distributed on the top of the electrostatic precipitator, and internal spray pipes are evenly distributed within the internal electric field of the electrostatic precipitator, achieving full coverage of fire monitoring and spraying in the electrostatic precipitator area. Audible and visual alarms are layered on the electrostatic precipitator platform, facilitating timely alarm activation by on-site personnel in case of fire, minimizing personnel and property losses, and achieving real-time and all-round monitoring of the entire electrostatic precipitator area. Attached Figure Description

[0017] Figure 1 This is a diagram of the fiberglass electrostatic precipitator intelligent fire protection system of this utility model. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1 This utility model provides a technical solution: a fiberglass electrostatic precipitator intelligent fire protection system, comprising:

[0020] Fire monitoring system;

[0021] The fire monitoring system includes a heat-sensing cable, a fire monitoring host, and an audible and visual alarm.

[0022] The temperature sensing cable is evenly wound around the electrostatic precipitator body, the fire monitoring host is installed on the top of the electrostatic precipitator body and communicates with the DCS via the network, and the audible and visual alarms are arranged in layers on the electrostatic precipitator platform and the DSC room.

[0023] The fire monitoring host includes a pulse light source, an amplifier, a wavelength division multiplexing module, and a CPU processing unit;

[0024] Specifically, the fire monitoring system mainly consists of a pulsed light source connected to a temperature-sensing cable. The light source senses temperature changes and uses a wavelength division multiplexing module for selective filtering. The detection module then sends the signal to the CPU processing unit. On the other hand, the infrared flame detector directly sends an audible and visual alarm after detecting the signal.

[0025] The heat-sensing cable, far-infrared flame detector, and spray gun are arranged at corresponding positions in the electrostatic precipitator. The heat-sensing cable and far-infrared flame detector located in the electrostatic precipitator body automatically monitor and detect the fire inside the electrostatic precipitator, and issue an alarm. The DCS then manually or automatically controls the water supply pipeline to supply water, so as to achieve timely control and extinguishing of the fire.

[0026] A heat-sensing cable is spirally wound and bound to the surface of the electrostatic precipitator to monitor fire conditions on its outer surface. Far-infrared flame detectors are used for detection inside the electrostatic precipitator and in the top insulator chamber. The combination of these two methods enables full coverage monitoring of the electrostatic precipitator area. Audible and visual alarms are deployed in layers on the electrostatic precipitator platform and in the instrument control room. In the event of a fire, these alarms can promptly notify on-duty personnel for emergency response and automatically activate the fire suppression system.

[0027] It also includes a water supply system and a sprinkler system. The spray port of the sprinkler system is connected to the internal and external cleaning water pipes of the electrostatic precipitator. The water inlet port of the sprinkler system is connected to the water supply system, which is a fire pump water supply pipeline. A check valve is provided between the spray port of the sprinkler system and the water supply pipeline at the top of the electrostatic precipitator.

[0028] In this embodiment, the water supply system uses fire pumps, and the sprinkler range can achieve full coverage of the electrostatic precipitator area. The fire sprinkler system can be activated manually or automatically, with the fire pumps as the primary water source. The fire water is supplemented by low-pressure fire water from the plant area, ensuring the continuity of the fire pump's water supply during a fire. This invention is simple to operate, has clear control logic, and high reliability. It enables both manual and automatic control of the firefighting process, and the system's existence will not affect the normal operation of the electrostatic precipitator. It can effectively prevent and reduce personnel and property losses caused by fire.

[0029] The spray system's spray ports are connected to the internal and external cleaning water pipes of the electrostatic precipitator, respectively, and the spray system's water inlet port is connected to the water supply system.

[0030] The temperature sensing cable is spirally wound and tied to the electrostatic defogging surface at intervals of 0.5 meters. One end is connected to the pulse light source emitter, and the other end is connected to the wavelength division multiplexing module, the detection module, and the CPU processing unit.

[0031] Furthermore, by spirally winding the temperature-sensing cable at specific intervals, the surface of the electrostatic precipitator can be uniformly covered. This allows the cable to quickly detect and trigger an alarm if a fire or overheating occurs in any area. The spiral winding increases the contact area between the cable and the precipitator surface, thus improving fire detection sensitivity. This helps in early fire detection, allowing for timely measures to prevent the fire from spreading. Appropriate intervals and spiral winding reduce false alarms caused by environmental factors such as temperature changes and mechanical vibrations. Electrostatic precipitators are crucial equipment in industrial production, and their normal operation is essential for the entire production process. By installing temperature-sensing cables, the temperature of the precipitator can be monitored in real time, allowing for the timely detection and handling of potential fire hazards, thereby protecting the precipitator from fire damage.

[0032] The water supply system includes a water pump, water supply pipelines, and electric butterfly valves, pressure transmitters, and manual check valves installed on the water pipes.

[0033] It should be noted that a water pump uses mechanical energy (such as an electric motor drive) to pump water from a low point to a high point, or to increase the water pressure so that it can flow through the entire water supply system. The water supply pipeline is the water delivery channel, responsible for transmitting water from the water pump to each water point.

[0034] Materials: Common water supply pipe materials include plastics (such as PVC, PE), metals (such as steel pipes, cast iron pipes), and composite materials. An electric butterfly valve is a device that controls the opening and closing of a valve through an electric actuator. It can remotely control the water flow rate. The electric actuator receives control signals (such as signals from a PLC or DCS system) and drives the valve shaft to rotate, thereby changing the valve opening.

[0035] A pressure transmitter is used to measure the water pressure in a water pipe and convert the pressure signal into an electrical signal output. Inside the pressure transmitter is a pressure sensor that generates a corresponding electrical signal output when the water pressure in the pipe changes. The output signal of the pressure transmitter can be used to monitor and control the operating status of the water supply system, such as adjusting the speed of the water pump and controlling the opening of the electric butterfly valve. A manual check valve is a valve that prevents water backflow. When the water flow stops or reverses, the valve automatically closes to prevent backflow. Inside the manual check valve is a movable valve disc that is pushed open when water flows through and automatically closes when the water flow stops or reverses. Manual check valves are typically installed in critical locations in the water supply system, such as the water pump outlet and the water storage tank outlet, to prevent water backflow from damaging the system.

[0036] The spraying system includes internal water spray pipes, external water spray pipes, and nozzles, with the nozzles evenly distributed on the internal and external water spray pipes.

[0037] Furthermore, the spray ports of the spray system are connected to the internal and external cleaning water pipes of the electrostatic precipitator, respectively, and the water inlet port of the spray system is connected to the water supply system.

[0038] This device uses temperature-sensing cables spirally wound and bound to the surface of the electrostatic precipitator at 0.5-meter intervals. Far-infrared flame detectors are evenly distributed inside the electrostatic precipitator and in the top insulator chamber, with the number determined according to the size of the precipitator. External spray pipes are evenly distributed on the top of the electrostatic precipitator, and internal spray pipes are evenly distributed within the electric field inside the precipitator, achieving full coverage of fire monitoring and spraying in the precipitator area. Preferably, audible and visual alarms are arranged in layers on the electrostatic precipitator platform, facilitating timely detection and alarm issuance by on-site personnel, minimizing personnel and property damage. The surface temperature of the electrostatic precipitator is monitored in real time. When an abnormal temperature occurs, the pulse light source in the temperature-sensing cable detects the temperature change and sends the temperature data as light to the wavelength division multiplexing module. The fire monitoring system analyzes the data and sends a fire signal to the distributed control system. On-duty personnel then confirm whether the fire suppression system needs to be activated based on the alarm signal. When the temperature sensing cable exceeds 80°C, the fire monitoring system will issue an alarm when any of the above conditions are triggered by manually triggering any of the hand-operated alarms or any far-infrared flame detectors detecting flame radiation. At this time, the on-duty personnel will check whether a fire has occurred. If a fire has occurred, the fire pump and electric butterfly valve must be turned on so that the fire water can be smoothly sprayed into the electric defrost unit where the fire occurred.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A glass steel electric demisting intelligent fire extinguishing system, characterized in that, The utility model relates to a fire monitoring system for electric demisting body, which comprises the following parts: a fire monitoring system; the fire monitoring system comprises a temperature-sensitive cable, a fire monitoring host and an audible and visual alarm; the temperature-sensitive cable is uniformly wound on the electric demisting body, the fire monitoring host is installed on the top of the electric demisting body and communicates with the DCS through a network, and the audible and visual alarm is arranged in layers on the electric demisting platform and the DSC chamber.

2. The glass steel electric defogging intelligent fire extinguishing system according to claim 1, characterized in that: the fire monitoring host comprises a pulse light source, an amplifier, a wavelength division multiplexing module and a CPU processing unit.

3. The glass steel electric defogging intelligent fire extinguishing system according to claim 1, characterized in that: a water supply system and a spraying system are further included, the spraying system is connected with the internal and external cleaning water pipes of the electric demisting body through the water spraying port, the water inlet port of the spraying system is connected with the water supply system, the water supply system is a water supply pipeline of a fire pump, and a check valve is arranged between the water spraying port of the spraying system and the water supply pipeline on the top of the electric demisting body.

4. The glass steel electric defogging intelligent fire extinguishing system according to claim 2, characterized in that: the temperature-sensitive cable is spirally wound and bound on the surface of the electric demisting body at an interval of 0.5 meters, one end is connected with the pulse light source emitter, and the other end is connected with the wavelength division multiplexing module, the detection module and the CPU processing unit.

5. The glass steel electric defogging intelligent fire extinguishing system according to claim 3, characterized in that: the water supply system comprises a water pump, a water supply pipeline, an electric butterfly valve, a pressure transmitter and a manual check valve which are installed on the water pipe.

6. The glass steel electric defogging intelligent fire extinguishing system according to claim 3, characterized in that: the spraying system comprises internal and external water spraying pipelines and nozzles, and the nozzles are uniformly distributed on the internal and external water spraying pipelines.

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