Skid-mounted fire fighting device and water supply fire extinguishing method

Abstract

The invention relates to the technical field of fire fighting equipment, in particular to a skid-mounted fire fighting device and a water supply fire extinguishing method.Hydraulic pumping equipment is arranged on a transfer skid and comprises a water inlet pipeline, a water outlet pipeline and a plurality of plunger pumps, the plunger pumps are arranged in parallel to form an execution pump set unit, and the execution pump set unit is connected with a hydraulic power mechanism; the hydraulic power mechanism is suitable for being connected with a hydraulic power source of a fire-fighting site. One end of the water inlet pipeline is connected with a water source, and the other end of the water inlet pipeline is connected with the execution pump set unit. The transfer pry is adopted as a bracket, transfer or carrying of mobile equipment can be facilitated, a hydraulic power source of a fire-fighting site is adopted as a driving source, a high-power power source or a diesel engine does not need to be arranged, and all plunger pumps of the execution pump set unit are independently controlled, so that the flow and pressure of the fire-fighting device are adjusted according to actual scene requirements; and accurate control of fire extinguishing is realized.

Description

Technical Field

[0001] This invention relates to the field of fire-fighting equipment technology, and in particular to a skid-mounted fire-fighting device and a water supply method for fire extinguishing. Background Technology

[0002] Currently, the fire extinguishing equipment used in oil drilling areas or fracturing sites is mostly small, portable fire extinguishers, such as dry powder fire extinguishers, foam fire extinguishers, carbon dioxide fire extinguishers, and water fire extinguishers. However, the complex terrain and intricate network of pipelines in oil drilling and fracturing sites mean that small fire extinguishing devices cannot effectively and quickly extinguish fires.

[0003] Large-scale fire suppression systems typically require high-power power supplies or diesel engines for operation. However, existing large-scale fire suppression systems are complex in structure, involving numerous pieces of equipment, especially high-power power supplies and diesel engines, making the overall equipment heavy and inconvenient to move. Therefore, existing large-scale fire suppression systems are also unsuitable for use in oil drilling areas and fracturing sites. Summary of the Invention

[0004] This invention provides a skid-mounted fire-fighting device and a water supply method for extinguishing fires, in order to solve the deficiency in the prior art where there are no suitable fire-fighting devices for effective and rapid fire extinguishing in oil drilling areas and fracturing sites.

[0005] This invention provides a skid-mounted fire-fighting device, including a transfer skid on which a hydraulic pumping device is installed. The hydraulic pumping device includes an inlet pipe, an outlet pipe, and multiple plunger pumps. The multiple plunger pumps are connected in parallel to form an execution pump unit. The execution pump unit is connected to a hydraulic power mechanism, which is adapted to connect to a hydraulic power source at the fire scene. One end of the inlet pipe is connected to a water source, and the other end is connected to the execution pump unit. One end of the outlet pipe is connected to the execution pump unit, and the other end forms a fire outlet.

[0006] According to a skid-mounted fire-fighting device provided by the present invention, the hydraulic power mechanism includes a hydraulic power unit connected to the actuator pump unit for providing power to the actuator pump unit; the hydraulic power unit is provided with a hydraulic power pipeline, the port of the hydraulic power pipeline forming a hydraulic power interface for connecting to an external hydraulic power source at the fire scene; a pressure regulating valve is provided on the hydraulic power pipeline, and the hydraulic power unit and the pressure regulating valve are respectively connected to the electrical control system.

[0007] According to a skid-mounted fire-fighting device provided by the present invention, the hydraulic power mechanism is also connected to an electrical control system, and the hydraulic power device and the pressure regulating valve are respectively connected to the electrical control system.

[0008] According to a skid-mounted fire-fighting device provided by the present invention, the hydraulic power unit includes multiple sets of hydraulic motors arranged in parallel, and the multiple sets of hydraulic motors are connected one-to-one with multiple plunger pumps to achieve independent control.

[0009] According to a skid-mounted fire-fighting device provided by the present invention, an electronic flow meter is installed on the water outlet pipe, and the electronic flow meter is connected to the electrical control system.

[0010] According to a skid-mounted fire-fighting device provided by the present invention, a pressure sensor is also provided on the outlet water pipe, the outlet water pipe is connected to a bypass return water pipe, a safety pressure relief valve is provided on the bypass return water pipe, and both the pressure sensor and the safety pressure relief valve are connected to the electrical control system.

[0011] According to a skid-mounted fire-fighting device provided by the present invention, a water hammer eliminator is connected to the water outlet pipe.

[0012] According to a skid-mounted fire-fighting device provided by the present invention, the water outlet pipeline is further connected to a foam supply system, the foam supply system includes a foam pump, the foam pump is connected to a first foam pipeline and a second foam pipeline, the port of the first foam pipeline forms a foam inlet for connecting to an external foam source, the port of the second foam pipeline forms a foam outlet for connecting to the water outlet pipeline, and a foam proportional valve is further provided on the second foam pipeline, the foam proportional valve being connected to the electrical control system.

[0013] According to a skid-mounted fire-fighting device provided by the present invention, the foam supply system further includes a foam cleaning pipeline, which is connected to the first foam pipeline and externally connected to a cleaning liquid tank for cleaning the foam supply system.

[0014] According to a skid-mounted fire-fighting device provided by the present invention, the fire outlet includes a low-flow outlet and multiple high-pressure outlets. The low-flow outlet is equipped with a flow meter, and each of the multiple high-pressure outlets is equipped with a high-pressure ball valve. The multiple high-pressure outlets are respectively oriented towards different positions of the transfer skid.

[0015] This invention also provides a water supply fire extinguishing method applicable to any of the skid-mounted fire-fighting devices described above. The water supply fire extinguishing method includes controlling an execution pump unit via an electrical control system to match the required fire water flow rate at the fire outlet: when the required fire water flow rate at the fire outlet is less than a first set flow rate, one plunger pump in the execution pump unit operates at its rated power; when the required fire water flow rate at the fire outlet is greater than the first set flow rate and less than a second set flow rate, at least two plunger pumps in the execution pump unit operate at their rated power; when the required fire water flow rate at the fire outlet is greater than the second set flow rate, all plunger pumps in the execution pump unit operate.

[0016] The skid-mounted fire-fighting device and water supply method provided by this invention use a transfer skid as a bracket, which can be easily transferred or used for mounting on mobile equipment; it uses a hydraulic power source at the fire scene as a drive source, which is suitable for finding a suitable power source in oil drilling areas or fracturing sites to carry out effective and rapid fire extinguishing, without the need for a high-power power supply or diesel engine; by independently controlling each plunger pump of the pump unit, the entire fire-fighting device is intelligent, simple, and highly reliable, and the flow rate and pressure can be adjusted according to the actual needs of the scene to achieve precise control of fire extinguishing. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram illustrating the working principle of the skid-mounted fire-fighting device provided by the present invention.

[0019] Figure 2 This is one of the assembly structure diagrams of the skid-mounted fire-fighting device provided by the present invention.

[0020] Figure 3 This is the second schematic diagram of the assembly structure of the skid-mounted fire-fighting device provided by the present invention.

[0021] Reference numerals: 1. Transfer skid; 2. Inlet pipe; 3. Outlet pipe; 4. Piston pump; 5. Hydraulic power mechanism; 501. Hydraulic power unit; 502. Pressure regulating valve; 6. Electrical control system; 7. Electronic flow meter; 8. Pressure sensor; 9. Bypass return water pipe; 10. Safety relief valve; 11. Water hammer eliminator; 12. Foam pump; 13. Foam proportional valve; 14. Low flow outlet; 15. First high pressure outlet; 16. Second high pressure outlet; 17. Third high pressure outlet. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0023] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention 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. Therefore, they should not be construed as limitations on the embodiments of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0025] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0026] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0027] The following is combined with Figures 1 to 3 This invention describes the skid-mounted fire-fighting device and the water supply method for extinguishing fires.

[0028] One embodiment of the present invention provides a skid-mounted fire-fighting device, combined with Figure 1 and Figure 3 As shown, the skid-mounted fire-fighting device includes a transfer skid 1, on which a hydraulic pumping device is installed. The hydraulic pumping device includes an inlet pipe 2, an outlet pipe 3, and multiple plunger pumps 4. The multiple plunger pumps 4 are connected in parallel to form an execution pump unit. The execution pump unit is connected to a hydraulic power mechanism 5, which is suitable for connecting to a hydraulic power source at the fire scene. The hydraulic power mechanism 5 is also connected to an electrical control system 6. One end of the inlet pipe 2 is used to connect to a water source, and the other end is connected to the execution pump unit. One end of the outlet pipe 3 is connected to the execution pump unit, and the other end forms a fire outlet.

[0029] It is understood that this skid-mounted fire-fighting device in this embodiment uses a transfer skid 1 as a bracket, and the fire-fighting device is connected and installed on the transfer skid 1 in a modular form to form a skid-mounted fire-fighting device that is easy to transport. Among them, the hydraulic power mechanism 5 can obtain power and achieve power distribution nearby at the fire scene, without the need to be equipped with a high-power power supply or diesel engine, etc. In this embodiment, the hydraulic power mechanism 5 generates mechanical power to drive the plunger pump 4 to generate high-pressure fire-fighting water. By connecting to an external on-site hydraulic power source, it can effectively and quickly extinguish fires in oil drilling areas or fracturing sites using the hydraulic power source available on-site. The electronic control system 6 independently controls each plunger pump 4 of the pump group unit, making the entire fire-fighting device intelligent, simple, and highly reliable. It can adaptively adjust the flow rate and pressure according to the actual needs of the scene, realizing intelligent and precise control of fire extinguishing.

[0030] It should be understood that the skid-mounted fire-fighting device of the present invention can be used not only in oil drilling areas or fracturing sites, but also in urban main battle fire trucks and small forest fire-fighting mobile fire extinguishing devices. It can be quickly assembled onto fire trucks or related load-bearing chassis, improving the assembly efficiency and maintainability of fire trucks.

[0031] In some embodiments of the skid-mounted fire-fighting device of the present invention, see further details. Figure 1 As shown, the hydraulic power mechanism 5 includes a hydraulic power unit 501, which is connected to the actuator pump unit and is used to provide power to the actuator pump unit; the hydraulic power unit 501 is connected to a hydraulic power pipeline, and the port of the hydraulic power pipeline forms a hydraulic power interface, which is used to connect an external hydraulic power source; a pressure regulating valve 502 is installed on the hydraulic power pipeline, and the hydraulic power unit 501 and the pressure regulating valve 502 are respectively connected to the electrical control system 6.

[0032] It is understood that the skid-mounted fire-fighting device in this embodiment contains a complete set of hydraulic power interfaces and pressure regulating devices. In oil drilling areas or fracturing sites, there are hydraulic drive devices or hydraulic systems. By finding a suitable device or system on site as a hydraulic power source and connecting it to the hydraulic power interface of the hydraulic power pipeline, the hydraulic power device 501 is driven to work. The hydraulic power device 501 is connected to the execution pump unit to provide power for each plunger pump 4 in the execution pump unit to pump high-pressure fire-fighting water. During the operation of driving the plunger pump 4, the working intensity of the hydraulic power device 501 can be adjusted by controlling the adjustment of the pressure regulating valve 502 through the electronic control system 6, so as to adjust the pumping pressure of the plunger pump 4.

[0033] Specifically, in some specific examples of the skid-mounted fire-fighting device of the present invention, the hydraulic power unit 501 includes multiple sets of hydraulic motors arranged in parallel. Each set of hydraulic motors is connected to a corresponding set of multiple plunger pumps 4 for independent control. It is understood that in this example, the multiple plunger pumps 4 are arranged in parallel to form an actuator pump unit. Correspondingly, the multiple sets of hydraulic motors are also arranged in parallel to form a drive structure corresponding to each plunger pump 4. The hydraulic motors convert the hydraulic energy provided by the on-site hydraulic power source into mechanical energy. The multiple sets of parallel hydraulic motors drive the multiple parallel plunger pumps 4 to work, enabling the starting operation of a single plunger pump 4 or the simultaneous starting operation of multiple plunger pumps 4. The plunger pumps 4 convert the mechanical energy provided by the hydraulic motors back into the hydraulic energy required for fire-fighting water supply. By having multiple plunger pumps 4 work simultaneously, a large pressure can be generated to deliver fire-fighting water.

[0034] In some embodiments of the skid-mounted fire-fighting device of the present invention, an electronic flow meter 7 is installed on the outlet pipe 3. The electronic flow meter 7 is connected to the electrical control system 6. It is understood that the skid-mounted fire-fighting device of the present invention can adjust the delivery flow and delivery pressure through the electrical control system 6. In this embodiment, the electronic flow meter 7 can monitor the flow in the outlet pipe 3 in real time. The electrical control system 6 adjusts the hydraulic power mechanism 5 based on the required flow at the fire outlet to adjust the pumping pressure and flow of the pump unit. During the adjustment process, the flow in the outlet pipe 3 can be monitored in real time by the electronic flow meter 7 and fed back to the electrical control system 6 to achieve intelligent and precise flow control.

[0035] In some other embodiments of the skid-mounted fire-fighting device of the present invention, a pressure sensor 8 is also provided on the water outlet pipe 3, the water outlet pipe 3 is connected to a bypass return water pipe 9, a safety pressure relief valve 10 is provided on the bypass return water pipe 9, and both the pressure sensor 8 and the safety pressure relief valve 10 are connected to the electrical control system 6.

[0036] It is understandable that this embodiment uses a bypass return water pipe 9 to prevent excessive pressure in the skid-mounted fire-fighting system. Specifically, a pressure sensor 8 monitors the pressure data in the outlet water pipe 3 in real time and transmits the data to the electrical control system 6. When pipe blockage occurs, the pressure in the pipe will increase sharply. At this time, the pressure sensor 8 transmits the abnormal pressure status to the electrical control system 6, which then controls the safety relief valve 10 to open, connecting the outlet water pipe 3 with the bypass return water pipe 9. The bypass return water pipe 9 then diverts and relieves pressure in the outlet water pipe 3, reducing the excessive pressure. This embodiment achieves automatic overpressure relief through the electrical control system 6, pressure sensor 8, bypass return water pipe 9, and safety relief valve 10, thereby ensuring the safety of the entire pipeline and personnel.

[0037] Furthermore, in some embodiments of the skid-mounted fire-fighting device of the present invention, a water hammer eliminator 11 is connected to the outlet pipe 3. It is understood that the skid-mounted fire-fighting device of the present invention is used in fire-fighting scenarios. During operation, it connects to the fire outlet via fire hoses and nozzles to extinguish fires. During the frequent opening and closing of the fire hoses, rapid pressure changes can easily occur in the pipes, generating a water hammer effect that can cause impact damage to the entire pipe system and equipment. In this embodiment, by connecting a water hammer eliminator 11 to the outlet pipe 3, the water hammer eliminator 11 buffers the impact of rapidly changing pressure in the pipes, effectively mitigating the impact caused by the frequent opening and closing of the fire hoses and protecting the safety of the entire pipe system.

[0038] In some embodiments of the skid-mounted fire-fighting device of the present invention, the water outlet pipe 3 is also connected to a foam supply system. The foam supply system includes a foam pump 12, which is connected to a first foam pipe and a second foam pipe. The port of the first foam pipe forms a foam inlet for connecting to an external foam source, such as a foam tank, to provide foam liquid. The port of the second foam pipe forms a foam outlet for connecting to the water outlet pipe 3. A foam proportioning valve 13 is also provided on the second foam pipe, and the foam proportioning valve 13 is connected to the electrical control system 6.

[0039] It is understood that this embodiment sets up a positive pressure foam supply system for the skid-mounted fire-fighting device. The foam pump 12 is connected to the foam tank through the first foam pipeline to provide the foam liquid required for fire extinguishing. Through the pumping of the foam pump 12, the foam liquid is supplied to the outlet pipeline 3. After entering the outlet pipeline 3, the foam liquid mixes with the high-pressure fluid in the outlet pipeline 3 to form a foam extinguishing agent, thereby achieving foam fire extinguishing in the corresponding scenario. During the process of the foam pump 12 pumping the foam liquid, the corresponding mixing ratio can be directly selected according to the operating conditions. Specifically, it can be adjusted by controlling the opening of the foam proportioning valve 13 through the electrical control system 6. The operation is simple and the system has high reliability.

[0040] Furthermore, in some specific examples of the skid-mounted fire-fighting device of the present invention, the foam supply system further includes a foam cleaning pipeline connected to a first foam pipeline, and an external cleaning liquid tank connected to the foam cleaning pipeline for cleaning the foam supply system. After the fire-fighting operation is completed, the foam supply system needs to be cleaned. In this example, the foam cleaning pipeline is connected to an external cleaning liquid tank, the foam inlet of the first foam pipeline is closed, and the foam pump 12 is started. The clean water in the cleaning liquid tank passes sequentially through the foam cleaning pipeline, the first foam pipeline, the foam pump 12, and the second foam pipeline before reaching the outlet pipeline 3 and finally being discharged from the fire outlet. The cleaning of residual foam in the foam supply system can be completed by flushing with the clean water in the cleaning liquid tank.

[0041] In some embodiments of the skid-mounted fire-fighting device of the present invention, combined with Figure 2 and Figure 3 As shown, the fire hydrant outlet includes a low-flow outlet 14 and multiple high-pressure outlets. The low-flow outlet 14 is equipped with a flow meter, and each of the multiple high-pressure outlets is equipped with a high-pressure ball valve. Furthermore, the multiple high-pressure outlets are oriented towards different locations on the transfer skid 1. For some specific examples, see [link to example]. Figure 2 and Figure 3 As shown, the fire outlet includes a low-flow outlet 14 and three high-pressure outlets, namely the first high-pressure outlet 15, the second high-pressure outlet 16, and the third high-pressure outlet 17. The low-flow outlet 14 is equipped with a flow meter to measure and control the low-flow water. The water output from the low-flow outlet 14 is suitable for applications with relatively small flow rates. The first high-pressure outlet 15, the second high-pressure outlet 16, and the third high-pressure outlet 17 are oriented towards different directions of the transfer skid 1. In this way, the skid-mounted fire-fighting device of this embodiment can be used to deal with fires from all directions. When hoisting and transferring the skid-mounted fire-fighting device of this embodiment, it is not necessary to specifically face a certain side towards the fire, thus expanding the rapid adaptability of the skid-mounted fire-fighting device of this embodiment.

[0042] In another aspect, the present invention also provides a water supply fire extinguishing method. The water supply fire extinguishing method of the present invention is applicable to the skid-mounted fire-fighting device in any of the above embodiments or examples. In some embodiments, the water supply fire extinguishing method includes controlling the execution of the following processes through an electronic control system 6: matching the operation of the pump group unit based on the flow rate of fire-fighting water required by the fire outlet; when the flow rate of fire-fighting water required by the fire outlet is less than a first set flow rate, the hydraulic power mechanism 5 drives one plunger pump 4 in the pump group unit to operate at rated power; when the flow rate of fire-fighting water required by the fire outlet is greater than the first set flow rate and less than a second set flow rate, the hydraulic power mechanism 5 drives at least two plunger pumps 4 in the pump group unit to operate at rated power; when the flow rate of fire-fighting water required by the fire outlet is greater than the second set flow rate, the hydraulic power mechanism 5 drives all plunger pumps 4 in the pump group unit to operate and increases the operating power of the plunger pumps 4 to match the flow rate of fire-fighting water required by the fire outlet.

[0043] In some specific examples, the execution pump unit includes two plunger pumps 4, which connect the inlet pipe 2 of the skid-mounted fire-fighting device to the water source at the fire scene. For example, a water storage tank can be used as the water source. The outlet valve of the water storage tank is opened first, and water is pumped out by the water pump to ensure that the inlet pipe 2 is full of water. Then, the execution pump unit is controlled by the electrical control system 6 to match the flow rate of the fire outlet. Specifically, when the inlet pipe 2 is filled with water, one plunger pump 4 starts after 5 seconds, matching the outlet flow rate. When the required flow rate of the fire outlet is ≤2L / s (first set flow rate), only one plunger pump 4 needs to operate; when 2L / s < required flow rate of the fire outlet ≤4L / s (second set flow rate), both plunger pumps 4 start operating; when the required flow rate of the fire outlet is >4L / s (second set flow rate), the electrical control system 6 will issue a command to make both plunger pumps 4 speed up to the required flow rate. A pilot-operated overflow valve can be installed on the outlet pipe 3. The pilot-operated overflow valve overflows into the inlet pipe 2. When all fire outlets are closed, the electrical control system 6 controls the plunger pump 4 to automatically reduce its speed to the minimum speed according to the flow feedback. At the same time, the overflow pilot valve of the pilot-operated overflow valve opens, and the plunger pump 4 performs zero-pressure internal circulation.

[0044] In the above process, the flow rate pumped by the plunger pump 4 is monitored by the electronic flow meter 7 and fed back to the electrical control system 6 for feedback adjustment to ensure that the flow rate matches the required flow rate of the fire outlet. The electrical control system 6 adaptively meets different flow rate requirements based on the flow feedback of the electronic flow meter 7, without the need for manual flow adjustment. The pumping pressure is monitored by the pressure sensor 8 to ensure the normal pressure operation of the pumping pipeline. When the pressure rises sharply due to pipeline blockage or other reasons, the pressure sensor 8 transmits the abnormal pressure status to the electrical control system 6. The electrical control system 6 controls the safety relief valve 10 to open, so that the outlet pipeline 3 is connected to the bypass return pipeline 9, and the water flows back through the bypass return pipeline. Water pipe 9 diverts and depressurizes water outlet pipe 3, reducing excessive pressure in water outlet pipe 3 and ensuring the safety of the entire pipeline and personnel. Water hammer eliminator 11 connected to water outlet pipe 3 eliminates water hammer caused by rapid pressure changes in the pipeline, effectively mitigating the impact caused by frequent opening and closing of fire hoses and protecting the safety of the entire pipeline system. The opening of foam proportioning valve 13 is controlled by electrical control system 6 to adjust the ratio of water and foam in the pipeline, so as to output foam extinguishing agent at the fire outlet. Electrical control system 6 directly selects the corresponding mixing ratio according to the operating conditions, which is simple to operate, has a simpler system composition, and higher system reliability.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention 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 of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A skid-mounted fire-fighting device, characterized in that, The system includes a transfer skid (1), on which a hydraulic pumping device is installed. The hydraulic pumping device includes an inlet pipe (2), an outlet pipe (3), and multiple plunger pumps (4). The multiple plunger pumps (4) are connected in parallel to form an execution pump unit. The execution pump unit is connected to a hydraulic power mechanism (5), which is suitable for connecting to a hydraulic power source at the fire scene. One end of the inlet pipe (2) is used to connect to a water source, and the other end is connected to the execution pump unit. One end of the outlet pipe (3) is connected to the execution pump unit, and the other end forms a fire outlet.

2. The skid-mounted fire-fighting device according to claim 1, characterized in that, The hydraulic power mechanism (5) includes a hydraulic power unit (501), which is connected to the actuator pump unit and is used to provide power to the actuator pump unit; the hydraulic power unit (501) is provided with a hydraulic power pipeline, the port of which forms a hydraulic power interface, which is used to connect to an external hydraulic power source at the fire scene; a pressure regulating valve (502) is provided on the hydraulic power pipeline.

3. The skid-mounted fire-fighting device according to claim 2, characterized in that, The hydraulic power mechanism (5) is also connected to the electronic control system (6), and the hydraulic power device (501) and the pressure regulating valve (502) are respectively connected to the electronic control system (6).

4. The skid-mounted fire-fighting device according to claim 3, characterized in that, The hydraulic power unit (501) includes multiple sets of hydraulic motors arranged in parallel, and the multiple sets of hydraulic motors are connected one-to-one with multiple piston pumps (4) to achieve independent control.

5. The skid-mounted fire-fighting device according to claim 4, characterized in that, An electronic flow meter (7) is installed on the water outlet pipe (3), and the electronic flow meter (7) is connected to the electrical control system (6).

6. The skid-mounted fire-fighting device according to claim 5, characterized in that, A pressure sensor (8) is also installed on the water outlet pipe (3). The water outlet pipe (3) is connected to a bypass return water pipe (9). A safety pressure relief valve (10) is installed on the bypass return water pipe (9). The pressure sensor (8) and the safety pressure relief valve (10) are both connected to the electrical control system (6).

7. The skid-mounted fire-fighting device according to any one of claims 1 to 6, characterized in that, A water hammer eliminator (11) is connected to the water outlet pipe (3).

8. The skid-mounted fire-fighting device according to any one of claims 3 to 6, characterized in that, The water outlet pipe (3) is also connected to a foam supply system, which includes a foam pump (12). The foam pump (12) is connected to a first foam pipe and a second foam pipe. The port of the first foam pipe forms a foam inlet for connecting to an external foam source. The port of the second foam pipe forms a foam outlet for connecting to the water outlet pipe (3). A foam proportional valve (13) is also provided on the second foam pipe. The foam proportional valve (13) is connected to the electrical control system (6).

9. The skid-mounted fire-fighting device according to any one of claims 1 to 6, characterized in that, The fire outlet includes a low-flow outlet and multiple high-pressure outlets. The low-flow outlet is equipped with a flow meter, and each of the multiple high-pressure outlets is equipped with a high-pressure ball valve. The multiple high-pressure outlets are respectively oriented towards different positions of the transfer skid (1).

10. A water supply method for fire extinguishing, characterized in that, Applicable to the skid-mounted fire-fighting device according to any one of claims 1 to 9, the water supply fire extinguishing method includes controlling the execution pump unit to match the required fire water flow rate of the fire outlet through the electrical control system (6): When the required flow rate of fire water at the fire outlet is less than the first set flow rate, one of the plunger pumps (4) in the pump unit operates at rated power. When the required flow rate of fire water at the fire outlet is greater than the first set flow rate and less than the second set flow rate, at least two plunger pumps (4) in the pump unit shall operate at rated power. When the required flow rate of fire water at the fire outlet is greater than the second set flow rate, all plunger pumps (4) in the pump unit shall operate.

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