Control system for fire extinguishing

Abstract

The utility model relates to the field of fire extinguishing equipment, in particular to a control system for extinguishing fire, which comprises a water supply main pipe, a plurality of water supply main pipes connected onto the water supply main pipe, water supply branch pipes connected onto each water supply main pipe, a plurality of spray heads connected onto each water supply branch pipe and a stop valve I arranged on each water supply main pipe, a heat tracing heat preservation system is arranged on the water supply main pipe and further arranged on the water supply main pipe between the water supply main pipe and the first stop valve, a first low-point emptying pipe is connected to the water supply main pipe between the first stop valve and the water supply branch pipe, and a first low-point emptying valve is arranged on the first low-point emptying pipe. The utility model has the beneficial effects that the device can be applied to the chemical industry and the industry and trade industry; the structure is simple, use is easy, and manual and automatic opening can be achieved; independent control of each area can be realized; freezing prevention in winter is realized by emptying water in the pipeline; and the system can be normally used in winter through the heat tracing and heat preservation system.

Description

Technical Field

[0001] This utility model relates to the field of fire extinguishing equipment, and in particular to a control system for fire extinguishing. Background Technology

[0002] Traditional fire suppression systems in chemical plants primarily consist of fire sprinkler control systems. These systems require significant investment and mainly comprise sprinkler heads, alarm valve assemblies, water flow alarm devices, piping, and water supply facilities.

[0003] Because the water in the pipes will freeze in low-temperature environments, existing general fire sprinkler control systems are difficult to maintain normal operation in winter due to the low temperature. Utility Model Content

[0004] The purpose of this invention is to provide a fire extinguishing control system that allows for individual control of each area and can be used normally in winter.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a control system for fire extinguishing, including a main water supply pipe, multiple water supply branches connected to the main water supply pipe, a branch water supply pipe connected to each branch water supply pipe, multiple nozzles connected to each branch water supply pipe, a shut-off valve 1 installed on each branch water supply pipe, a heat tracing and insulation system installed on the main water supply pipe, the heat tracing and insulation system also installed on the branch water supply pipe between the main water supply pipe and the shut-off valve 1, a low-point drain pipe 1 connected to the branch water supply pipe between the shut-off valve 1 and the branch water supply pipe, and a low-point drain valve 1 installed on the low-point drain pipe 1.

[0006] Preferably, a shut-off valve 2 and a manual valve are installed on the main water supply pipe before the main water supply pipe. A low-point drain pipe 2 is connected between the shut-off valve 2 and the manual valve, and a low-point drain valve 2 is installed on the low-point drain pipe 2.

[0007] Preferably, each of the water supply branch pipes is set at a preset rescue point, and the system also includes an alarm detection device set at the rescue point, each of the alarm detection devices including a combustible detector and a toxic detector.

[0008] Preferably, when the alarm detection device is installed outdoors, an alarm detection device with a coverage range of 10 meters is selected; when the alarm detection device is installed indoors, an alarm detection device with a coverage range of 5 meters is selected.

[0009] Preferably, the system further includes a control system, which is connected to shut-off valve one, shut-off valve two, alarm detection device, and nozzle.

[0010] Preferably, the water supply pipe supplies fire-fighting water, and the control system is a fire-fighting linkage control system.

[0011] Preferably, the water supply pipe supplies industrial water, and the control system is a distributed control system.

[0012] Preferably, the heat tracing and insulation system is one of steam heat tracing, hot water heat tracing, and electric heat tracing.

[0013] In summary, this utility model has the following beneficial effects: it can be applied in the chemical industry and industrial and commercial industry; it has a simple structure and is easy to use, and can realize manual and automatic opening; it can realize independent control of each area; it can prevent freezing in winter by draining the water in the pipeline; and it can ensure that the system can be used normally in winter through the heat tracing and insulation system. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of an embodiment.

[0015] In the diagram: 1. Main water supply pipe; 11. Heat tracing and insulation system; 12. Low point drain pipe 2; 13. Low point drain valve 2; 14. Manual valve; 15. Shut-off valve 2; 2. Main water supply pipe; 21. Shut-off valve 1; 22. Low point drain pipe 1; 23. Low point drain valve 1; 3. Branch water supply pipe; 31. Sprinkler head; 41. Rescue point 1; 42. Rescue point 2; 43. Rescue point 3; 5. Alarm detection device; 7. Control system. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings.

[0017] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0018] like Figure 1 As shown, the system includes a main water supply pipe 1, whose water source is either fire-fighting water or industrial water. Three main water supply pipes 2 are connected to the main water supply pipe 1, and each main water supply pipe 2 is connected to a branch water supply pipe 3. The three branch water supply pipes 3 are respectively set at preset rescue points. The rescue points include Rescue Point 1 41, Rescue Point 2 42, and Rescue Point 3 43. Four sprinkler heads 31 are connected to each branch water supply pipe 3. Each rescue point 4 is equipped with an alarm detection device 5, and each alarm detection device 5 includes a combustible detector and a toxic substance detector. When the alarm detection device 5 is installed outdoors, a combustible detector and a toxic substance detector with a coverage range of 10 meters are selected; when the alarm detection device 5 is installed indoors, a combustible detector and a toxic substance detector with a coverage range of 5 meters are selected.

[0019] Each water supply main pipe 2 is connected to a shut-off valve 21. A low-point drain pipe 22 is connected to the water supply main pipe 2 between the shut-off valve 21 and the water supply branch pipe 3. A low-point drain valve 23 is installed on the low-point drain pipe 22. A shut-off valve 15 and a manual valve 14 are installed on the main water supply pipe 1 before the water supply main pipe 2. A low-point drain pipe 12 is connected between the shut-off valve 15 and the manual valve 14. A low-point drain valve 13 is installed on the low-point drain pipe 12.

[0020] The aforementioned shut-off valve 21 and shut-off valve 15 can be controlled remotely by the system or manually. This is existing technology and will not be described in detail here.

[0021] A heat tracing and insulation system 11 is installed on the main water supply pipe 1, and the heat tracing and insulation system 11 is also installed on the main water supply pipe 2 between the main water supply pipe 1 and the shut-off valve 21. The heat tracing and insulation system 11 is one of steam heat tracing, hot water heat tracing, and electric heat tracing.

[0022] Shut-off valve 1 21, shut-off valve 2 15, alarm detection device 5, nozzle 31, low point drain valve 1 23, and low point drain valve 2 13 are all connected to a control system 7.

[0023] When the water supply from the main water supply pipe 1 is for fire fighting, the control system 7 shall be a fire-fighting linkage control system.

[0024] When the water supply from the main water supply pipe 1 is industrial water, the control system 7 is a distributed control system.

[0025] Working principle:

[0026] In low-temperature winter conditions, to prevent pipes from freezing, the heat tracing and insulation system 11 is activated to heat and insulate the water supply main 2 and main water supply pipe 1 before the shut-off valve 21, preventing the water in this section of the pipe from freezing. The shut-off valve 21 is in the closed position. First, open the low-point drain valve 23 and drain the water in the water supply main 2 using the low-point drain pipe 22, then close the low-point drain valve 23. The shut-off valve 15 and the manual valve 14 are in the open position, and the low-point drain valve 13 is in the closed position.

[0027] When the alarm detection device 5 at a rescue point detects an environmental anomaly, the control system 7 immediately opens the corresponding shut-off valve 21 and uses the corresponding sprinkler head 31 to spray the rescue point. After the anomaly is resolved, the shut-off valve 21 is closed, the corresponding low-point drain valve 23 is opened to drain the water from the corresponding water supply main 2, and then the low-point drain valve 23 is closed.

[0028] When the system needs to be shut down, open the low-point drain valve 213 to drain the water from the main water supply pipe 1, which can prevent the main water supply pipe 1 from freezing.

Claims

1. A control system for extinguishing fires, comprising a water supply main (1), characterised in that, The water supply main pipe (1) is connected with a plurality of water supply main pipes (2), each water supply main pipe (2) is connected with a water supply branch pipe (3), each water supply branch pipe (3) is connected with a plurality of spray heads (31), each water supply main pipe (2) is provided with a cut-off valve (21), the water supply main pipe (1) is provided with a heat tracing system (11), the heat tracing system (11) is also provided on the water supply main pipe (2) between the water supply main pipe (1) and the cut-off valve (21), the water supply main pipe (2) between the cut-off valve (21) and the water supply branch pipe (3) is connected with a low point drain pipe (22), and the low point drain pipe (22) is provided with a low point drain valve (23).

2. A control system for extinguishing a fire as claimed in claim 1, wherein, The water supply main pipe (1) is provided with a cut-off valve (15) and a hand valve (14) before the water supply main pipe (2), the cut-off valve (15) and the hand valve (14) are connected with a low point drain pipe (12), and the low point drain pipe (12) is provided with a low point drain valve (13).

3. A control system for extinguishing a fire as defined in claim 2, wherein Each water supply branch pipe (3) is arranged at a preset rescue point, and the system further comprises alarm detection devices (5) arranged at the rescue points, each alarm detection device (5) comprising a flammable detector and a toxic detector.

4. A control system for extinguishing a fire as defined in claim 3, wherein When the alarm detection device (5) is arranged outdoors, an alarm detection device (5) with a coverage range of 10 meters is selected; and when the alarm detection device (5) is arranged indoors, an alarm detection device (5) with a coverage range of 5 meters is selected.

5. A control system for extinguishing a fire as defined in claim 4, wherein The system further comprises a control system (7) connected with the cut-off valve (21), the cut-off valve (15), the alarm detection device (5) and the spray head (31).

6. A control system for extinguishing a fire as defined in claim 5, wherein The water supply of the water supply main pipe (1) is fire-fighting water, and the control system (7) is a fire-fighting linkage control system.

7. A control system for extinguishing a fire as defined in claim 5, wherein The water supply of the water supply main pipe (1) is industrial water, and the control system (7) is a distributed control system.

8. The control system for extinguishing a fire of claim 1, wherein, The heat tracing system (11) is one of a steam heat tracing system, a hot water heat tracing system and an electric heat tracing system.

Images