Water spraying system for fire extinguishing of power plant

Abstract

The utility model provides a water spraying system for fire extinguishing in a power plant, which belongs to the technical field of power plant safety and comprises a water conveying pipeline, a fire-fighting water pipeline and a fire-fighting pool. The water inlet end of the fire-fighting water pipeline is communicated with a fire-fighting pool arranged underground through an underground pipeline; the water inlet end of the water conveying pipeline is communicated with a fire-fighting water pipeline, the fire-fighting water pipeline is used for providing fire extinguishing water for the water conveying pipeline, and the water outlet end of the water conveying pipeline is communicated with a spray head. According to the utility model, the fire extinguishing water delivery pipeline is communicated with the fire-fighting water pipeline, and the fire-fighting water pipeline is used for taking water from the underground fire-fighting water pool, so that the problem that the water delivery header pipe is frozen due to lower outdoor temperature is effectively avoided, and the fire extinguishing system can quickly respond and effectively deliver water even in a low-temperature environment; therefore, a fire source is extinguished in time, and economic loss and casualties possibly caused by the fire are greatly reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of power plant safety, specifically to a power plant fire extinguishing water spray system. Background Technology

[0002] In the power industry, fire safety at power plants is of paramount importance. Because power plants contain a large amount of electrical equipment and high-value assets, a fire can cause not only enormous economic losses but also pose a serious threat to personnel safety. Therefore, having an efficient and reliable fire suppression system is crucial for ensuring the safe operation of power plants.

[0003] There is some research on water spray systems for fire extinguishing in power plants in the prior art. See patent document with application number 202220931962.9, which discloses a water spray fire extinguishing device for power plants. The device mainly consists of a power plant building and an alarm device. The power plant building includes a building body with a door installed at one end. A main water supply pipe is installed on the top of the building body to quickly provide water in the event of a fire. The alarm device includes key components such as alarm lights, and its bottom is equipped with a stable base to ensure stable operation in emergency situations.

[0004] Therefore, it can be seen that the water spray fire extinguishing system in power plants, through the combination of the power plant building and alarm devices, improves the fire safety level of power plants to a certain extent. However, the main water supply pipe is located on the top of the power plant building. In practical applications, when the outdoor temperature is low, the water in the main water supply pipe is prone to freezing, resulting in ineffective water supply. Consequently, the fire extinguishing system cannot function properly, and thus cannot respond quickly and extinguish the fire source when a fire occurs, causing serious economic losses and casualties. Utility Model Content

[0005] In response to the technical problem described in the background art, where the main water supply pipe is located on the top of the power plant building, and the water in the main water supply pipe is prone to freezing when the outdoor temperature is low, thus failing to effectively supply water and causing serious economic losses and casualties due to the inability to respond quickly and extinguish the fire source in the event of a fire, this utility model proposes a power plant fire extinguishing water spray system.

[0006] This invention connects the fire extinguishing water supply pipeline to the fire water supply pipeline and draws water from an underground fire water tank through the fire water supply pipeline. This effectively avoids the problem of the main water supply pipe freezing due to low outdoor temperatures, ensuring that the fire extinguishing system can respond quickly and supply water effectively even in low-temperature environments, thereby extinguishing the fire source in time and greatly reducing the economic losses and casualties that may be caused by fire.

[0007] This utility model discloses a fire-extinguishing water spray system for power plants, comprising a water supply pipeline, a fire-fighting water pipeline, and a fire-fighting water tank; the inlet end of the fire-fighting water pipeline is connected to the underground fire-fighting water tank via an underground pipeline; the inlet end of the water supply pipeline is connected to the fire-fighting water pipeline, the fire-fighting water pipeline is used to provide fire-extinguishing water to the water supply pipeline, and the outlet end of the water supply pipeline is connected to a nozzle.

[0008] Further defined, the water supply pipeline includes a main water supply pipeline, a first water supply branch pipe, and a second water supply branch pipe; the main water supply pipeline is connected to the fire-fighting water supply pipeline located inside the factory building; the first water supply branch pipe and the second water supply branch pipe are connected in parallel at the outlet end of the main water supply pipeline.

[0009] Further specifying, the main water supply pipeline is provided with a first regulating component, the first regulating component including a gate valve; the gate valve is installed on the main water supply pipeline.

[0010] Furthermore, the first regulating component also includes a pressure reducing valve; the pressure reducing valve is installed on the main water supply pipeline, and the pressure reducing valve is located between the gate valve and the first water supply branch pipe.

[0011] Furthermore, the first regulating component also includes a filter; the filter is installed on the main water supply pipeline and is located between the gate valve and the pressure reducing valve.

[0012] Further specifying, the first regulating component also includes a pressure gauge; the pressure gauge is installed on the main water supply pipeline, and the pressure gauge is located between the pressure reducing valve and the first water supply branch pipe.

[0013] Further specifying, the first water supply branch pipe is provided with a second regulating component, the second regulating component including a first signal valve and a deluge valve; both the first signal valve and the deluge valve are installed on the first water supply branch pipe, and the first signal valve is located between the main water supply pipe and the deluge valve.

[0014] Further specifying, the second regulating component also includes a second signal valve; the second signal valve is installed on the first water supply branch pipe, and the deluge valve is located between the first signal valve and the second signal valve.

[0015] Furthermore, the second regulating component also includes a check valve; the check valve is installed on the first water supply branch pipe, and the second signal valve is located between the deluge valve and the check valve.

[0016] Furthermore, the second water supply branch pipe is provided with a third regulating component, and the structure of the third regulating component is the same as that of the second regulating component.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. This utility model discloses a fire-extinguishing water spray system for power plants. By connecting the fire-extinguishing water supply pipeline to the fire-fighting water supply pipeline and drawing water from an underground fire-fighting water tank through the fire-fighting water supply pipeline, the system effectively avoids the problem of the main water supply pipeline freezing due to low outdoor temperatures. This ensures that even in low-temperature environments, the fire-extinguishing system can respond quickly and supply water effectively, thereby extinguishing the fire source in a timely manner and greatly reducing the economic losses and casualties that may be caused by the fire.

[0019] 2. In this utility model, the gate valve is used to control the flow of water, the pressure reducing valve is used to regulate the water pressure to ensure stable water flow, the filter is used to remove impurities from the water to prevent pipe blockage, and the pressure gauge is used to monitor the water pressure in the pipe. Through the cooperation between the gate valve, the pressure reducing valve, the filter and the pressure gauge, the water flow can be precisely regulated, thereby improving the stability and reliability of the water spray system.

[0020] 3. In this utility model, the first signal valve is used to regulate the opening and closing of the deluge valve, the second signal valve is used to provide an additional safety control point, and the check valve is used to prevent backflow of water in the first water supply branch pipe. Through the cooperation between the first signal valve, the deluge valve, the second signal valve, and the check valve, the precise regulation and safety protection of the water flow in the first water supply branch pipe can be achieved, thereby improving the emergency response capability and safety of the water spray system. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the power plant fire extinguishing water spray system of this utility model;

[0022] Figure 2 for Figure 1 Enlarged view of section A in the middle;

[0023] In the diagram, 1-Main water supply pipeline; 2-First water supply branch pipe; 3-Second water supply branch pipe; 4-First regulating component; 41-Gate valve; 42-Filter; 43-Pressure reducing valve; 44-Pressure gauge; 5-Second regulating component; 51-First signal valve; 52-Delta valve; 53-Second signal valve; 54-Check valve. Detailed Implementation

[0024] The technical solution of this utility model will be further explained and described below with reference to the accompanying drawings and embodiments, but this utility model is not limited to the embodiments described below.

[0025] Current power plant fire-fighting water spray systems have their main water supply pipe located on the roof of the power plant building. When the outdoor temperature is below 0°C, the water in the main pipe easily freezes, preventing effective water delivery and thus hindering the normal operation of the fire-fighting system. This results in an inability to respond quickly and extinguish fires, causing severe economic losses and casualties. This invention aims to provide a power plant fire-fighting water spray system that connects the fire-fighting water supply pipe to the fire-fighting water supply pipe and draws water from an underground fire-fighting water tank. This effectively avoids the problem of the main water supply pipe freezing due to low outdoor temperatures, ensuring that the fire-fighting system can respond quickly and deliver water effectively even in low-temperature environments, thereby extinguishing fires promptly and significantly reducing potential economic losses and casualties from fires.

[0026] Example 1:

[0027] See Figure 1 and Figure 2 This utility model discloses a fire-extinguishing water spray system for power plants, comprising a water supply pipeline, a fire-fighting water pipeline, and a fire-fighting water tank. The inlet end of the fire-fighting water pipeline is connected to the underground fire-fighting water tank via an underground pipeline, utilizing the relatively stable underground temperature to prevent the water in the fire-fighting water pipeline from freezing. The inlet end of the water supply pipeline is connected to the fire-fighting water pipeline, which provides fire-extinguishing water to the water supply pipeline. The outlet end of the water supply pipeline is connected to a nozzle to ensure that the water in the water supply pipeline does not easily freeze in low-temperature environments.

[0028] Specifically, the water mist system also includes a central control platform and fire detectors; the fire detectors are electrically connected to the central control platform and to the water supply pipeline. Under normal circumstances, the water in the water supply pipeline is not flowing, and the water mist system is in standby mode; when a fire occurs, the fire detectors detect the fire and send a signal to the central control platform. After receiving the signal, the central control platform quickly adjusts the water flow in the water supply pipeline to achieve fire extinguishing operations.

[0029] See Figure 1 and Figure 2 The water supply pipeline includes a main water supply pipeline 1, a first water supply branch pipe 2, and a second water supply branch pipe 3. The main water supply pipeline 1 is connected to the fire-fighting water supply pipeline located inside the factory building. The first water supply branch pipe 2 and the second water supply branch pipe 3 are connected in parallel at the outlet end of the main water supply pipeline 1. The first water supply branch pipe 2 and the second water supply branch pipe 3 serve as backups for each other to ensure a rapid response and water supply operation in the event of a fire.

[0030] Reference Figure 1 and Figure 2The main water supply pipeline 1 is equipped with a first regulating component 4, which includes a gate valve 41, a pressure reducing valve 43, a filter 42, and a pressure gauge 44. Through the cooperation between the gate valve 41, the pressure reducing valve 43, the filter 42, and the pressure gauge 44, the water flow can be precisely regulated.

[0031] The gate valve 41 is installed on the main water supply pipeline 1, which allows operators to adjust the flow of water as needed.

[0032] The pressure reducing valve 43 is installed on the main water supply pipeline 1 and is located between the gate valve 41 and the first water supply branch pipe 2. It is used to regulate the water pressure in the main water supply pipeline 1 to ensure that the water flow maintains a stable and appropriate pressure during the transportation process.

[0033] The filter 42 is installed on the main water supply pipeline 1, and is located between the gate valve 41 and the pressure reducing valve 43. It is used to remove impurities from the water to protect the subsequent first and second water supply branch pipes 2 and 3 from blockage and damage. Specifically, the filter 42 can be a basket filter, bag filter, or Y-type filter, etc., to filter impurities in the water within the main water supply pipeline 1. Preferably, the filter 42 is a Y-type filter, which has a simple structure, good filtration effect, and is easy to maintain.

[0034] The pressure gauge 44 is installed on the main water supply pipeline 1 and is located between the pressure reducing valve 43 and the first water supply branch pipe 2. The pressure gauge 44 is electrically connected to the central control platform and is used to monitor the water pressure in the main water supply pipeline 1 in real time to ensure that the water spray system operates under safe and stable pressure.

[0035] Reference Figure 1 and Figure 2 A second regulating component 5 is provided on the first water supply branch pipe 2. The second regulating component 5 includes a first signal valve 51, a deluge valve 52, a second signal valve 53, and a check valve 54. Through the cooperation between the first signal valve 51, the deluge valve 52, the second signal valve 53, and the check valve 54, the precise regulation and safety protection of the water flow in the first water supply branch pipe 2 can be achieved.

[0036] The first signal valve 51 and the deluge valve 52 are both installed on the first water supply branch pipe 2, and the first signal valve 51 is located between the main water supply pipe 1 and the deluge valve 52. The first signal valve 51 is electrically connected to the central control platform and is used to adjust the opening and closing of the deluge valve 52.

[0037] The second signal valve 53 is installed on the first water supply branch pipe 2, and the deluge valve 52 is located between the first signal valve 51 and the second signal valve 53. The second signal valve 53 is electrically connected to the central control platform to provide an additional safety control point.

[0038] The check valve 54 is installed on the first water supply branch pipe 2, and the second signal valve 53 is located between the deluge valve 52 and the check valve 54 to prevent backflow of water in the first water supply branch pipe 2 and protect the stability of the water spray system.

[0039] Reference Figure 1 and Figure 2 The second water supply branch pipe 3 is provided with a third adjustment component, and the structure of the third adjustment component is the same as that of the second adjustment component 5, so as to ensure the consistency and interchangeability of the functions of the first water supply branch pipe 2 and the second water supply branch pipe 3, and improve the reliability and flexibility of the water spray system.

[0040] This utility model discloses a water spray system for fire extinguishing in power plants. Its working principle is as follows: Under normal circumstances, both gate valve 41 and pressure reducing valve 43 are closed. When a fire occurs, gate valve 41 and pressure reducing valve 43 are opened, allowing water to flow through the main water supply pipe 1 into the first regulating component 4. After regulation and filtration by gate valve 41, pressure reducing valve 43, and filter 42, the water flows into the first water supply branch pipe 2 or the second water supply branch pipe 3. On the first water supply branch pipe 2 or the second water supply branch pipe 3, after receiving a fire signal, the second regulating component 5 or the third regulating component opens the deluge valve 52 and the check valve 54, allowing water to flow through the first water supply branch pipe 2 or the second water supply branch pipe 3, spraying water mist from the nozzles to the fire location, thus achieving fire extinguishing through spray.

[0041] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of this application.

Claims

1. A water spray system for extinguishing fires in power plants, characterized in that, include: Water supply pipelines, fire-fighting water pipelines, and fire-fighting water tanks; The inlet of the fire water pipeline is connected to an underground fire water tank via an underground pipeline. The inlet end of the water supply pipeline is connected to the fire-fighting water supply pipeline, which is used to provide fire-fighting water to the water supply pipeline, and the outlet end of the water supply pipeline is connected to a nozzle.

2. The power plant fire-extinguishing water spray system according to claim 1, characterized in that: The water supply pipeline includes a main water supply pipeline (1), a first water supply branch pipeline (2), and a second water supply branch pipeline (3); The main water supply pipeline (1) is connected to the fire-fighting water supply pipeline located inside the factory building; The first water supply branch pipe (2) and the second water supply branch pipe (3) are connected in parallel at the outlet end of the main water supply pipe (1).

3. The power plant fire extinguishing water spray system according to claim 2, characterized in that: The main water supply pipeline (1) is provided with a first regulating component (4), which includes a gate valve (41). The gate valve (41) is installed on the main water supply pipeline (1).

4. The power plant fire-extinguishing water spray system according to claim 3, characterized in that: The first regulating component (4) also includes a pressure reducing valve (43); The pressure reducing valve (43) is installed on the main water supply pipeline (1), and the pressure reducing valve (43) is located between the gate valve (41) and the first water supply branch pipe (2).

5. The power plant fire-extinguishing water spray system according to claim 4, characterized in that: The first regulating component (4) also includes a filter (42); The filter (42) is installed on the main water supply pipeline (1) and is located between the gate valve (41) and the pressure reducing valve (43).

6. The power plant fire-extinguishing water spray system according to claim 5, characterized in that: The first regulating component (4) also includes a pressure gauge (44); The pressure gauge (44) is installed on the main water supply pipeline (1), and the pressure gauge (44) is located between the pressure reducing valve (43) and the first water supply branch pipe (2).

7. The power plant fire-extinguishing water spray system according to any one of claims 2 to 6, characterized in that, The first water supply branch pipe (2) is provided with a second regulating component (5), which includes a first signal valve (51) and a deluge valve (52). The first signal valve (51) and the deluge valve (52) are both installed on the first water supply branch pipe (2), and the first signal valve (51) is located between the main water supply pipe (1) and the deluge valve (52).

8. The power plant fire extinguishing water spray system according to claim 7, characterized in that: The second regulating component (5) also includes a second signal valve (53); The second signal valve (53) is installed on the first water supply branch pipe (2), and the deluge valve (52) is located between the first signal valve (51) and the second signal valve (53).

9. The power plant fire extinguishing water spray system according to claim 8, characterized in that: The second regulating component also includes a check valve (54); The check valve (54) is installed on the first water supply branch pipe (2), and the second signal valve (53) is located between the deluge valve (52) and the check valve (54).

10. The power plant fire extinguishing water spray system according to claim 9, characterized in that: The second water supply branch pipe (3) is provided with a third regulating component, and the structure of the third regulating component is the same as that of the second regulating component (5).

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