Enhanced water monitor system combined with fire extinguishing system and control method

Abstract

The invention relates to the technical field of marine fire fighting equipment, in particular to an enhanced water monitor system combined with a fire fighting system and a control method. According to the water cannon system, the multiple fire fighting-water cannon combined fire fighting pumps are connected in series and operate in parallel with an existing water cannon pump for the ship, so that the flow rate and the range of the water cannon system can be greatly increased, and through frequency conversion control of the fire fighting pumps and reasonable adjustment of the fire fighting-water cannon combined control valve bank, the fire fighting-water cannon combined fire fighting pumps can be controlled; pulse injection of the water cannon system and convenient and fast switching of multiple working modes of general use / range extension / pulse can be achieved; compared with an existing water cannon performance improving method, the method has the advantages that the range and flow of the marine water cannon can be improved under the condition that equipment configuration and total resource occupation are not increased, the system stability is good, independent operation of a marine water cannon system and an original fire extinguishing system is not affected, overall operation is convenient, realizability is high, and popularization is easy.

Description

Technical Field

[0001] The present invention relates to the technical field of marine fire fighting equipment, and in particular to an enhanced water cannon system used in conjunction with a fire fighting system and a control method thereof. Background Art

[0002] As an external firefighting equipment, ship-mounted water cannon uses high-pressure water flow as a medium to extinguish fires at a long distance. Range and flow rate are key performance indicators of water cannon systems, limiting their actual effectiveness in firefighting scenarios.

[0003] The performance improvement of existing water cannon systems is usually achieved by increasing the head and flow of the water cannon pump, but this solution also increases the weight, space occupation, and configuration cost of the water cannon system. How to achieve the range extension and enhancement of the water cannon system while saving costs and not increasing the overall resource occupation is an urgent need in the current marine firefighting and rescue scenarios. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an enhanced water cannon system and control method for use with a fire protection system, which can enable the water cannon to improve its range and flow rate and switch between general / extended range / pulse modes without increasing equipment configuration and overall resource occupancy.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: 1. An enhanced water monitor system used in conjunction with a fire fighting system The present invention provides an enhanced water cannon system used in conjunction with a fire fighting system, comprising: a water cannon system, a fire fighting system and a valve control system; The water cannon system includes a plurality of shipboard water cannons 1 arranged on the deck, wherein the plurality of shipboard water cannons 1 are connected to the outlet end of the water cannon pump 3 through the water cannon main pipeline 8, and the inlet end of the water cannon pump 3 is connected to the sea valve box 5 through the water cannon pump inlet pipeline 21; The fire fighting system comprises a plurality of fire fighting-water monitor combined fire pumps 9 connected to the ship fire fighting system pipeline 16, wherein the plurality of fire fighting-water monitor combined fire pumps 9 are connected in series through a combined fire pump series pipeline 10 and then connected to the water monitor main pipeline 8 through a fire fighting-water monitor combined parallel pipeline 11, and the fire fighting-water monitor combined fire pumps 9 are all connected to the sea valve box 5 through corresponding fire pump inlet pipelines 22; The valve control system includes a water monitor main valve 2 arranged on the water monitor main line 8, a series switching valve 13 arranged on the combined fire pump series pipeline 10, a parallel switching valve 14 arranged on the fire-water monitor combined parallel pipeline 11, and a water monitor pump inlet valve 20 and a fire pump inlet valve 7 respectively arranged on the water monitor pump inlet pipeline 21 and the fire pump inlet pipeline 22.

[0006] Among them, the main water cannon pipeline 8 and the combined fire-fighting and water-cannon parallel pipeline 11 are both connected to the overboard discharge valve 6 through a discharge pipeline 12, and a discharge valve 15 is installed on the discharge pipeline 12.

[0007] Preferably, there are multiple sea suction valve boxes 5, and a sea suction valve 4 is installed at the interface of each sea suction valve box 5. The water cannon pump 3 and the combined fire-fighting and water-cannon fire pump 9 are respectively connected to the corresponding sea suction valve box 5 through a water cannon pump inlet pipeline 21 and a fire pump inlet pipeline 22.

[0008] Preferably, the multiple marine water cannons 1 are respectively connected to the main water cannon pipeline 8 through corresponding water cannon branch pipelines 18, and a water cannon branch valve 19 is installed on each water cannon branch pipeline 18.

[0009] Preferably, multiple combined fire-fighting and water-cannon fire pumps 9 are connected in series on the combined fire pump series pipeline 10, and a series switching valve 13 is provided between every two combined fire-fighting and water-cannon fire pumps 9.

[0010] Preferably, the output power P of the combined fire-fighting and water-cannon fire pump 9 消 , and the calculation formula is:

[0011] In the formula, is the preset increment of the water cannon range, unit: m; is the seawater density, unit: kg / m³; is the acceleration of gravity, unit: m / s²; is the number of combined fire-fighting and water-cannon fire pumps connected in series on the fire pump series pipeline; is the working efficiency of the combined fire-fighting and water-cannon fire pump; is the reference flow rate of the marine water cannon, unit: m³ / s.

[0012] Preferably, the reference flow rate of the marine water cannon, and the calculation formula is:

[0013] In the formula, is the output power of the water cannon pump, unit: kw; is the working efficiency of the water cannon pump; is the basic range of the water cannon, unit: m; is the water cannon flow correction coefficient.

[0014] Preferably, the number of the combined fire-fighting and water-cannon fire pumps connected in series on the fire pump series pipeline is adjusted by opening / closing multiple series switching valves 13 on the combined fire pump series pipeline 10.

[0015] Preferably, the multiple fire - water cannon combined fire pumps 9 are all connected to a frequency conversion control system, and the fire - water cannon combined fire pumps 9 are driven by the frequency conversion control system to operate variably frequency to realize the pulsed operation of the marine water cannon 1 under the extended range condition.

[0016] II. A control method for an enhanced water cannon system combined with a fire protection system Based on the same inventive concept, the present invention also provides a control method for an enhanced water cannon system combined with a fire protection system as described above, which specifically includes the following steps: S1. Under the general working condition: close the parallel switching valve 14 and all series switching valves 13 to make the water cannon system operate independently and separately from the ship fire protection system; S2. Under the ordinary extended range working condition: open the parallel switching valve 14, and sequentially open the corresponding number of series switching valves 13 on the combined fire pump series pipeline from front to back according to the preset water cannon range extension amount, so that the corresponding number of fire - water cannon combined fire pumps 9 are connected to the water cannon main pipeline 8, thereby increasing the water cannon range; S3. Under the extended range pulsed working condition: drive the fire - water cannon combined fire pumps 9 to operate variably frequency through the frequency conversion control system to realize the pulsed operation of the water cannon; S4. When the water cannon fails, close the parallel switching valve 14 and all series switching valves 13, and open the relief valve 15 to avoid affecting the normal operation of the ship fire protection system.

[0017] The present invention has the following main advantages compared with the prior art: 1. The enhanced water cannon system combined with a fire protection system and the control method provided by the present invention, by connecting multiple fire - water cannon combined fire pumps in series and operating in parallel with the existing marine water cannon pump, can greatly improve the flow rate and range of the water cannon system, and through the variable frequency control of the fire pump and the reasonable adjustment of the fire - water cannon combined control valve group, can realize the pulsed injection of the water cannon system and the convenient and rapid switching of multiple working modes such as general / extended range / pulsed; 2. Compared with the prior art methods for improving the performance of water cannons, the present invention can realize the improvement of the range and flow rate of marine water cannons without increasing equipment configuration and overall resource occupancy, and the system has good stability, does not affect the independent operation of the marine water cannon system and the original fire protection system, is convenient to operate as a whole, has high feasibility, and is easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the overall schematic diagram of the enhanced water cannon system combined with a fire protection system in the embodiment of the present invention; Figure 2 It is the flow chart of the control method in the embodiment of the present invention.

[0019] In the figure: 1 - marine water cannon; 2 - main water cannon valve; 3 - water cannon pump; 4 - sea suction valve; 5 - sea suction valve box; 6 - overboard discharge valve; 7 - fire pump inlet valve; 8 - main water cannon pipeline; 9 - combined fire and water cannon fire pump; 10 - series pipeline of combined fire pump; 11 - parallel pipeline of combined fire and water cannon; 12 - drain pipeline; 13 - series switching valve; 14 - parallel switching valve; 15 - drain valve; 16 - fire system pipeline; 17 - fire pipeline valve; 18 - branch water cannon pipeline; 19 - branch water cannon valve; 20 - water cannon pump inlet valve; 21 - water cannon pump inlet pipeline; 22 - fire pump inlet pipeline. Detailed implementation mode

[0020] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] It should be noted that according to the needs of implementation, the various steps / components described in this application can be split into more steps / components, or two or more steps / components or partial operations of steps / components can be combined into new steps / components to achieve the objectives of the present invention.

[0022] Embodiment 1. This embodiment provides an enhanced water cannon system combined with a fire system, as Figure 1 shown, mainly including: a water cannon system, a combined fire system, and a valve control system; Among them, the water cannon system includes a plurality of marine water cannons 1 arranged on the deck. The plurality of marine water cannons 1 are all connected to the outlet end of the water cannon pump 3 through the main water cannon pipeline 8. The inlet end of the water cannon pump 3 is connected to the sea suction valve box 5 through the water cannon pump inlet pipeline 21; The combined fire system includes a plurality of combined fire and water cannon fire pumps 9 connected to the ship fire system pipeline 16. The plurality of combined fire and water cannon fire pumps 9 are connected in series through the series pipeline 10 of the combined fire pump and then connected to the main water cannon pipeline 8 through the parallel pipeline 11 of the combined fire and water cannon. Moreover, the combined fire and water cannon fire pumps 9 are all connected to the sea suction valve box 5 through the corresponding fire pump inlet pipelines 22; The valve control system includes a main water cannon valve 2 arranged on the main water cannon pipeline 8, a series switching valve 13 arranged on the series pipeline 10 of the combined fire pump, a parallel switching valve 14 arranged on the parallel pipeline 11 of the combined fire and water cannon, and a water cannon pump inlet valve 20 and a fire pump inlet valve 7 respectively arranged on the water cannon pump inlet pipeline 21 and the fire pump inlet pipeline 22.

[0023] Further, both the main water cannon pipeline 8 and the combined fire-fighting and water cannon parallel pipeline 11 are connected to the overboard discharge valve 6 through a discharge pipeline 12, and a discharge valve 15 is installed on the discharge pipeline 12.

[0024] Further, a plurality of sea chest valve boxes 5 are provided, and a sea chest valve 4 is installed at the interface of each sea chest valve box 5. The water cannon pump 3 and the combined fire-fighting and water cannon fire pump 9 are respectively connected to the corresponding sea chest valve box 5 through a water cannon pump inlet pipeline 21 and a fire pump inlet pipeline 22.

[0025] Further, the plurality of marine water cannons 1 are respectively connected to the main water cannon pipeline 8 through corresponding water cannon branch pipelines 18, and a water cannon branch valve 19 is installed on each water cannon branch pipeline 18.

[0026] Further, a plurality of combined fire-fighting and water cannon fire pumps 9 are connected in series on the combined fire pump series pipeline 10, and a series switching valve 13 is provided between every two combined fire-fighting and water cannon fire pumps 9.

[0027] Further, the output power P of the combined fire-fighting and water cannon fire pump 9 消 , and the calculation formula is:

[0028] In the formula, is the preset water cannon range increment, unit: m; is the seawater density, unit: kg / m³; is the acceleration of gravity, unit: m / s²; is the number of combined fire-fighting and water cannon fire pumps connected in series on the fire pump series pipeline; is the working efficiency of the combined fire-fighting and water cannon fire pump; is the reference flow rate of the marine water cannon, unit: m³ / s.

[0029] Further, the reference flow rate of the marine water cannon, and the calculation formula is:

[0030] In the formula, is the output power of the water cannon pump, unit: kw; is the working efficiency of the water cannon pump; is the basic range of the water cannon, unit: m; is the water cannon flow correction coefficient.

[0031] Further, the number of combined fire-fighting and water cannon fire pumps connected in series on the fire pump series pipeline is adjusted by opening / closing a plurality of series switching valves 13 on the combined fire pump series pipeline 10.

[0032] Further, the multiple fire - water cannon combined fire pumps 9 are all connected to a variable - frequency control system, and the fire - water cannon combined fire pumps 9 are driven by the variable - frequency control system to operate with variable frequency to achieve the pulsed operation of the marine water cannon 1 under the extended - range condition.

[0033] Embodiment 2. An enhanced water cannon system combined with a fire - fighting system provided in this embodiment. The fire - fighting combined system includes a fire - water cannon combined fire pump 9, a combined fire pump series pipeline 10, a fire - water cannon combined parallel pipeline 11, a drain pipeline 12, and a fire - water cannon combined control valve group. One end of the combined fire pump series pipeline is connected to the fire pump outlet, and the other end is connected to the inlet of another fire pump of the same type. One end of the fire - water cannon combined parallel pipeline is connected to the fire pump outlet, and the other end is connected to the main pipeline 8 of the water cannon system at the water cannon pump outlet. The fire - water cannon combined control valve group includes a fire pump inlet valve 7, a series switching valve 13, a parallel switching valve 14, and a drain valve 15.

[0034] Further, two or more fire pumps are used as the fire - water cannon combined fire pumps in the system. The fire pumps are connected in series through pipelines on the premise of not affecting the water fire pipeline to increase the head during operation.

[0035] Further, the outlet pressure of the pipeline of the fire - fighting combined system is higher than the pressure of the main pipeline of the water cannon system to ensure that the seawater at the fire pump outlet can enter the main pipeline of the water cannon system. During system design, it should be ensured that the head after the fire pumps are connected in series is higher than the head of the water cannon pump.

[0036] Further, the system realizes the increase in the range and flow rate of the water cannon under the extended - range condition through the parallel operation of the water cannon pump and the fire - water cannon combined fire pump.

[0037] Further, the system realizes the switching of the extended - range condition through the fire - water cannon combined control valve group.

[0038] Further, the system realizes the pulsed operation of the water cannon under the extended - range condition through the variable - frequency operation of the fire - water cannon combined fire pump.

[0039] Further, under normal conditions, the water cannon system and the fire - fighting system operate independently; when the water cannon system needs to increase the range and flow rate, the system switches to the extended - range condition. The combined fire pump and the outlet valve of the fire main pump are closed, the series switching valve and the parallel switching valve are opened, the inlet valve of the first - stage combined fire pump in series and the sea - connection valve are opened, and the outlet pipeline of the water pump after the two combined fire pumps are connected in series is connected in parallel to the main pipeline of the water cannon, thereby increasing the range of the water cannon; when the water cannon system needs to perform pulsed spraying, the system switches to the pulsed condition, and the system changes the flow rate entering the main pipeline of the water cannon through the variable - frequency operation of the fire - water cannon combined fire pump to achieve the pulsed operation of the water cannon under the extended - range condition.

[0040] Furthermore, under abnormal conditions, the relevant pipelines of the fire-water monitor combined system can be manually closed; the fire-water monitor combined fire pump and the water monitor system are connected in parallel, and the failures of the fire pump and the water monitor device do not affect each other, and the original water monitor system and the fire protection system operate independently.

[0041] Furthermore, taking a 120m water monitor system as a typical case, with the inlet pressure of the water monitor being 1.2 Mpa and the diameter of the main pipeline of the water monitor being DN350, two original ship's 120m 3 fire pumps with a flow rate of / h and a head of 80m are used as the combined fire pumps. After being connected in series, they are incorporated into the main pipeline of the water monitor, and the pipeline of the original fire protection system remains unchanged. The diameters of the series pipeline of the combined fire pumps, the parallel pipeline of the fire-water monitor combined system, and the outlet pipeline of the original fire pump are the same, all being DN125. In this scheme, under the range extension mode, the inlet pressure of the water monitor slightly increases, and the outlet flow rate can be increased by more than 10%, thus realizing the improvement of the water monitor's range.

[0042] Example 3, based on the same inventive concept, this example also provides a control method for an enhanced water monitor system combined with a fire protection system as described above. As Figure 2 shown, it specifically includes the following steps: S1, under normal operating conditions: close the parallel switching valve 14 and all series switching valves 13 to separate and independently operate the water monitor system from the ship's fire protection system; S2, under normal range extension conditions: open the parallel switching valve 14, and sequentially open the corresponding number of series switching valves 13 on the series pipeline of the combined fire pumps according to the preset range extension amount of the water monitor's range, so that the corresponding number of fire-water monitor combined fire pumps 9 are connected into the main pipeline 8 of the water monitor, thereby increasing the water monitor's range; S3, under range extension pulse conditions: drive the fire-water monitor combined fire pump 9 to operate with frequency conversion through the frequency conversion control system to realize the pulse operation of the water monitor; S4, when the water monitor fails, close the parallel switching valve 14 and all series switching valves 13, and open the relief valve 15 to avoid affecting the normal operation of the ship's fire protection system.

[0043] Furthermore, the parts not detailed in this application are the same as the prior art or are implemented using the prior art.

[0044] In summary: 1. An enhanced water monitor system combined with a fire protection system and a control method provided by the present invention can greatly improve the flow rate and range of the water monitor system by connecting multiple fire-water monitor combined fire pumps in series and operating them in parallel with the existing shipboard water monitor pumps. Moreover, through the frequency conversion control of the fire pump and the reasonable adjustment of the fire-water monitor combined control valve group, it can realize the pulse injection of the water monitor system and the convenient and rapid switching of multiple working modes such as general / range extension / pulse; 2. Compared with the existing methods for improving the performance of water cannons, the present invention can achieve an increase in the range and flow rate of marine water cannons without increasing equipment configuration and overall resource occupancy. Moreover, the system has good stability, does not affect the independent operation of the marine water cannon system and the original fire protection system, is convenient to operate as a whole, has high feasibility, and is easy to promote.

[0045] It is easy for those skilled in the art to understand that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An enhanced water monitor system used in conjunction with a fire fighting system, characterized in that: include: Water monitor system, fire fighting system and valve control system; The water cannon system comprises a plurality of shipboard water cannons (1) arranged on the deck, wherein the plurality of shipboard water cannons (1) are connected to the outlet end of a water cannon pump (3) via a water cannon main pipeline (8), and the inlet end of the water cannon pump (3) is connected to the sea valve box (5) via a water cannon pump inlet pipeline (21); The fire fighting system comprises a plurality of fire fighting-water monitor combined fire pumps (9) connected to a ship fire fighting system pipeline (16); the plurality of fire fighting-water monitor combined fire pumps (9) are connected in series via a combined fire pump series pipeline (10) and then connected to the water monitor main pipeline (8) via a fire fighting-water monitor combined parallel pipeline (11); and the fire fighting-water monitor combined fire pumps (9) are all connected to the sea valve box (5) via corresponding fire pump inlet pipelines (22); The valve control system comprises a water monitor main pipe valve (2) arranged on the water monitor main pipe (8), a series switching valve (13) arranged on the combined fire pump series pipe (10), a parallel switching valve (14) arranged on the fire-water monitor combined parallel pipe (11), and a water monitor pump inlet valve (20) and a fire pump inlet valve (7) respectively arranged on the water monitor pump inlet pipe (21) and the fire pump inlet pipe (22).

2. The enhanced water monitor system used in conjunction with a fire fighting system according to claim 1, characterized in that: The water monitor main pipeline (8) and the fire-fighting-water monitor combined parallel pipeline (11) are both connected to the overboard valve (6) via a discharge pipeline (12), and a discharge valve (15) is installed on the discharge pipeline (12).

3. The enhanced water monitor system used in conjunction with a fire fighting system according to claim 1, characterized in that: The sea valve box (5) is provided in plurality, and a sea valve (4) is installed at the interface of each sea valve box (5). The water monitor pump (3) and the fire-water monitor combined fire pump (9) are connected to the corresponding sea valve box (5) via a water monitor pump inlet pipeline (21) and a fire pump inlet pipeline (22), respectively.

4. The enhanced water monitor system used in conjunction with a fire fighting system according to claim 1, characterized in that: The plurality of ship-mounted water monitors (1) are respectively connected to the water monitor main pipeline (8) via corresponding water monitor branch pipelines (18), and each of the water monitor branch pipelines (18) is provided with a water monitor branch pipe valve (19).

5. The enhanced water monitor system used in conjunction with a fire fighting system according to claim 1, characterized in that: A plurality of fire-fighting-water monitor combined fire pumps (9) are connected in series on the combined fire pump series pipeline (10), and the series switching valve (13) is provided between every two fire-fighting-water monitor combined fire pumps (9).

6. An enhanced water monitor system used in conjunction with a fire fighting system according to claim 5, characterized in that: The output power P of the fire-water monitor combined fire pump (9) 消 , the calculation formula is: In the formula, It is the preset range increase of water cannon, unit: m; is the density of seawater, unit: kg / m³; is the acceleration due to gravity, m / s²; The number of fire pumps connected in series on the fire pump series pipeline; The working efficiency of the combined fire pump; It is the reference flow rate of ship water cannon, unit: m³ / s.

7. An enhanced water monitor system used in conjunction with a fire fighting system according to claim 6, characterized in that: The reference flow rate of the water cannon on board the vessel , the calculation formula is: In the formula, is the output power of the water monitor pump, unit: kw; The working efficiency of the water monitor pump; is the basic range of the water cannon, unit: m; It is the correction factor of water monitor flow rate.

8. The enhanced water monitor system used in conjunction with a fire fighting system according to claim 6, characterized in that: The number of fire pumps connected in series on the fire pump series pipeline , and adjustment is performed by opening / closing a plurality of series switching valves (13) on the series pipeline (10) of the combined fire pump.

9. An enhanced water monitor system for use with a fire fighting system according to claim 1, characterized in that: The plurality of fire-fighting-water monitor combined fire pumps (9) are all connected to a frequency conversion control system, and the frequency conversion control system drives the fire-fighting-water monitor combined fire pumps (9) to operate at a variable frequency to achieve pulse operation of the ship's water monitor (1) under extended range conditions.

10. A control method for an enhanced water monitor system used in conjunction with a fire fighting system as claimed in any one of claims 1 to 9, characterized in that: The steps include: S1, under general working conditions: close the parallel switching valve (14) and all the series switching valves (13), so that the water monitor system and the ship fire fighting system can operate independently; S2, under normal range extension conditions: open the parallel switching valve (14), and open the corresponding number of series switching valves (13) on the series pipeline of the combined fire pump from front to back in sequence according to the preset range extension amount of the water cannon, so that the corresponding number of fire-water cannon combined fire pumps (9) are connected to the water cannon main pipeline (8), thereby increasing the range of the water cannon; S3, under the extended-range pulse condition: the fire-fighting-water monitor combined fire pump (9) is driven by the frequency conversion control system to perform frequency conversion operation, thereby realizing the water monitor pulse operation; S4, when the water monitor fails, close the parallel switching valve (14) and all the series switching valves (13), and open the discharge valve (15) to avoid affecting the normal operation of the ship's fire protection system.

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