Multi-coupling foam liquid supplying and receiving system

Abstract

According to the multi-coupling foam liquid supplying and receiving system, at least two liquid supplying ends can be in butt joint with the corresponding number of rear end water receiving devices so as to achieve one-to-many coupling, in this way, one large fire fighting truck can provide foam liquid for at least two small fire fighting trucks, the working power of the large fire fighting truck is improved, and the service life of the large fire fighting truck is prolonged. Meanwhile, manpower and time cost is reduced, and the fire-extinguishing rescue speed is increased. Moreover, as each liquid supply end is provided with a detection piece capable of detecting whether the rear-end water receiving devices operate or not, the output flow of the foam mixing pipeline can be correspondingly increased if the number of the rear-end water receiving devices is large, and the output flow of the foam mixing pipeline can be correspondingly reduced if the number of the rear-end water receiving devices is small. The foam liquid flow and pressure of each small fire fighting truck are automatically adjusted, the pressure stability of a fire extinguishing agent of each small fire fighting truck is guaranteed, the situation that equipment is damaged due to too high pressure or fire extinguishing is affected due to too low pressure is avoided, and the fire extinguishing agent supplying and receiving capacity is higher.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fire-fighting equipment, and in particular to a multiple coupling foam liquid supply and receiving system. BACKGROUND

[0002] In mountain and forest fire extinguishing, due to the remote water source, inconvenient water taking, and rugged and narrow road, it is difficult for large fire trucks with large power and large liquid carrying capacity to reach the fire extinguishing site, and small fire trucks that can reach the fire extinguishing site have small liquid carrying capacity, so that large fire trucks need to supply fire extinguishing agent to small fire trucks at the fire extinguishing site from a long distance. The ordinary coupling control system for supplying and receiving fire extinguishing agent can only realize one-to-one coupling of fire extinguishing agent, which wastes the working power of large fire trucks, and needs to occupy more operators, thereby causing unnecessary human and time costs and affecting the fire extinguishing and rescue speed. CONTENT OF THE INVENTION

[0003] The present application aims to provide a multiple coupling foam liquid supply and receiving system, which improves the working power of large fire trucks, reduces human and time costs, and improves the fire extinguishing and rescue speed.

[0004] The embodiments of the present application can be implemented as follows:

[0005] In a first aspect, the present application provides a multiple coupling foam liquid supply and receiving system, comprising a front liquid supply device and a rear water receiving device.

[0006] The front liquid supply device comprises a foam mixing pipeline and a liquid supply pipe connected thereto.

[0007] The liquid supply pipe has at least two liquid supply ends, and each liquid supply end is used for connecting one rear water receiving device.

[0008] Each liquid supply end is provided with a detection member, and each detection member is used for detecting whether the rear water receiving device connected to the corresponding liquid supply end is running.

[0009] The foam liquid flow rate of the foam mixing pipeline to the liquid supply pipe can be adjusted according to the detection result of the detection member.

[0010] In an optional embodiment, the detection member comprises a pressure sensor.

[0011] In an optional embodiment, the foam mixing pipeline comprises a foam pump, a foam pipe, a water pump, and a water inlet pipe.

[0012] The inlet end of the foam pipe is connected to the foam pump, and the outlet end of the foam pipe is connected to the water pump.

[0013] The outlet end of the water inlet pipe and the inlet end of the liquid supply pipe are connected to the water pump.

[0014] The rotation speed of the water pump and the rotation speed of the foam pump can be adjusted according to the detection result of the detection member.

[0015] In an optional embodiment, a foam flow meter is arranged on the foam pipe.

[0016] In an optional embodiment, a water flow meter is arranged on the water inlet pipe.

[0017] In an optional embodiment, an inlet foam valve is further arranged on the foam pipe.

[0018] In an optional embodiment, an inlet water valve is arranged on the water inlet pipe.

[0019] In an optional embodiment, the back-end water receiving device comprises an inlet pipe, a liquid delivery pump and an outlet pipe connected in sequence, the inlet pipe is connected with the liquid supply pipe, an inlet valve is arranged on the inlet pipe, and an outlet valve is arranged on the outlet pipe.

[0020] In an optional embodiment, an inlet pressure gauge is arranged on the inlet pipe.

[0021] In an optional embodiment, an outlet pressure gauge is arranged on the outlet pipe.

[0022] The beneficial effects of the embodiments of the present application include, for example:

[0023] By arranging at least two liquid supply ends, a corresponding number of back-end water receiving devices can be connected, so as to realize one-to-many coupling. In this way, one large fire fighting vehicle can provide foam liquid for at least two small fire fighting vehicles, improve the working power of the large fire fighting vehicle, reduce the labor and time cost, and improve the fire extinguishing and rescue speed. Moreover, since the detection member capable of detecting whether the back-end water receiving device is running is arranged on each liquid supply end, the number of running back-end water receiving devices can correspondingly increase the output flow of the foam mixing pipeline, and the number of running back-end water receiving devices can correspondingly reduce the output flow of the foam mixing pipeline, so as to automatically adjust the foam liquid flow and pressure of each small fire fighting vehicle, ensure the pressure stability of the fire extinguishing agent of each small fire fighting vehicle, avoid the situation that the equipment is damaged due to too high pressure or the fire extinguishing is affected due to too low pressure, and the fire extinguishing agent capacity is stronger. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the specific embodiments or prior art of the present application, the drawings needed in the specific embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0025] Figure 1 This is a schematic diagram of a multi-coupled foam liquid supply and receiving system according to an embodiment of this application;

[0026] Figure 2 for Figure 1 Schematic diagram of the front-end liquid supply device;

[0027] Figure 3 for Figure 1 A schematic diagram of the backend homepage device.

[0028] Icons: 100-Front-end liquid supply device; 110-Foam pipe; 111-Foam inlet valve; 112-Foam flow meter; 120-Water inlet pipe; 121-Water inlet valve; 122-Water flow meter; 130-Liquid supply pipe; 131-Detection device; 140-Foam pump; 150-Water pump; 200-Rear-end water receiving device; 210-Liquid inlet pipe; 211-Liquid inlet valve; 212-Liquid inlet pressure gauge; 220-Infusion pump; 230-Liquid outlet pipe; 231-Liquid outlet valve; 232-Liquid outlet pressure gauge. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application 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, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0034] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0035] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0036] refer to Figures 1 to 3 This application discloses a multi-coupled foam liquid supply and receiving system, which includes a front-end liquid supply device 100 and a rear-end water receiving device 200. The front-end liquid supply device 100 is used to be integrated on a large fire truck, and the rear-end water receiving device 200 is used to be integrated on a small fire truck. The front-end liquid supply device 100 and the rear-end liquid supply device are connected to enable the large fire truck to deliver foam liquid to the small fire truck.

[0037] The front-end liquid supply device 100 includes a connected foam mixing pipeline and a liquid supply pipe 130;

[0038] The liquid supply pipe 130 has at least two liquid supply ends, each of which is used to supply a downstream water receiving device 200 for connection.

[0039] Each liquid supply end is equipped with a detection element 131, and each detection element 131 is used to detect whether the back-end water receiving device 200 connected to the corresponding liquid supply end is in operation;

[0040] The flow rate of foam liquid from the foam mixing pipeline to the supply pipe 130 can be adjusted according to the detection results of the detection element 131.

[0041] In this way, by setting at least two liquid supply ends to connect to a corresponding number of downstream water receiving devices 200, a one-to-many coupling can be achieved. This allows one large fire truck to supply foam liquid to at least two smaller fire trucks, increasing the working power of the large fire truck while reducing manpower and time costs and improving firefighting and rescue speed. Furthermore, since each liquid supply end is equipped with a detection device 131 to check whether the downstream water receiving devices 200 are operational, a larger number of operational downstream water receiving devices 200 can correspondingly increase the output flow rate of the foam mixing pipeline, while a smaller number can correspondingly decrease the output flow rate. This automatically adjusts the foam liquid flow rate and pressure of each small fire truck, ensuring the pressure stability of the extinguishing agent in each small fire truck and preventing damage from excessive pressure or impact on firefighting due to insufficient pressure, thus enhancing the extinguishing agent supply and receiving capacity.

[0042] The foam mixing pipeline includes a foam pump 140, a foam pipe 110, a water pump 150, and an inlet pipe 120;

[0043] The inlet end of the foam tube 110 is connected to the foam pump 140, and the outlet end of the foam tube 110 is connected to the water pump 150.

[0044] The outlet end of the inlet pipe 120 and the inlet end of the liquid supply pipe 130 are connected to the water pump 150.

[0045] The rotational speed of the water pump 150 and the rotational speed of the foam pump 140 can be adjusted according to the detection results of the detection element 131, so as to adjust the flow rate and pressure of the foam liquid output to the supply pipe 130 accordingly.

[0046] Of course, to facilitate the adjustment of the foam liquid mixing ratio, that is, the foam and water mixing ratio, a foam flow meter 112 is installed on the foam pipe 110, and a water flow meter 122 is installed on the water inlet pipe 120. When the firefighter sets a certain foam mixing ratio (e.g., 2%), the real-time flow rate of foam and the real-time flow rate of water can be detected by the flow monitoring results of the foam flow meter 112 and the water flow meter 122, respectively. If the ratio of foam flow rate to water flow rate is not the set foam mixing ratio (2%), then the speed of water pump 150 and the speed of foam pump 140 will also change accordingly, and the ratio of foam flow rate to water flow rate will reach the set foam mixing ratio (2%).

[0047] In addition, a foam inlet valve 111 is provided on the foam pipe 110 to block or open the foam pipe 110 as needed. A water inlet valve 121 is provided on the water inlet pipe 120 to block or open the water inlet pipe 120 as needed.

[0048] The detection element 131 includes, but is not limited to, a pressure sensor. When the number of operating downstream water receiving devices 200 increases or decreases, the pressure at the liquid supply end of those downstream water receiving devices 200 that are started or stopped will suddenly decrease or increase significantly. This allows the determination of how many downstream water receiving devices 200 are started or stopped. After determining how many downstream water receiving devices 200 are connected to the front-end liquid supply device 100 and setting the required water pressure for the downstream fire truck, the real-time pressure detected by the detection element 131 is used. If the pressure is insufficient, the speed of the water pump 150 and the foam pump 140 is increased until the pressure at the liquid supply end is sufficient. If the pressure is too high, the speed of the water pump 150 and the foam pump 140 is decreased, only reducing the pressure at the liquid supply end to the required pressure. When it is necessary to stop all downstream water receiving devices 200, the speed of the water pump 150 and the foam pump 140 is gradually decreased to smoothly reduce the pressure of the entire system. After the foam liquid is discharged from the downstream water receiving devices 200, all downstream water receiving devices 200 are stopped.

[0049] Of course, the detection element 131 can also be a flow sensor. When the number of back-end water receiving devices 200 in operation increases or decreases, the flow rate of those liquid supply ends of these back-end water receiving devices 200 that are started or stopped will suddenly increase or decrease significantly to determine how many back-end water receiving devices 200 are started or stopped. At the same time, after the required outlet flow rate of the back-end fire truck, the flow rate of each liquid supply end can be made to meet the requirements by adjusting the speed of the water pump 150 and the foam pump 140.

[0050] The rear-end water receiving device 200 includes an inlet pipe 210, a delivery pump 220, and an outlet pipe 230 connected in sequence. The inlet pipe 210 is connected to the supply pipe 130, and an inlet valve 211 is installed on the inlet pipe 210. An outlet valve 231 is installed on the outlet pipe 230. Therefore, the rear-end water receiving device 200 will only operate when both the inlet valve 211 and the outlet valve 231 are open and the delivery pump 220 is running, at which point the rear-end fire truck will spray foam liquid. When stopping the rear-end water receiving device 200, the inlet valve 211 should be closed first, then the delivery pump 220 should be turned off, and finally the outlet valve 231 should be closed. This is to avoid the problem of excessive pressure in the delivery pump 220 due to closing the outlet valve 231 first, which could lead to pipe rupture or damage to the delivery pump 220.

[0051] An inlet pressure gauge 212 is installed on the inlet pipe 210 to monitor the pressure before the fluid enters the infusion pump 220 in real time, preventing damage to the infusion pump 220 due to abnormal pressure. An outlet pressure gauge 232 is installed on the outlet pipe 230 to monitor the water pressure output from the water pump 150, ensuring that it meets the needs of subsequent processes or users. It can also indicate whether there are any abnormalities such as leaks or blockages in the outlet pipe 230, facilitating maintenance.

[0052] In summary, this application discloses a multi-coupling foam liquid supply and receiving system. By setting at least two supply ends that can connect to a corresponding number of downstream water receiving devices 200, a one-to-many coupling is achieved. This allows one large fire truck to supply foam liquid to at least two smaller fire trucks, increasing the working power of the large fire truck while reducing manpower and time costs and improving firefighting and rescue speed. Furthermore, since each supply end is equipped with a detection element 131 to detect whether the downstream water receiving devices 200 are operating, a larger number of operating downstream water receiving devices 200 can correspondingly increase the output flow rate of the foam mixing pipeline, while a smaller number can correspondingly decrease the output flow rate of the foam mixing pipeline. This automatically adjusts the foam liquid flow rate and pressure of each small fire truck, ensuring the pressure stability of the extinguishing agent in each small fire truck and preventing situations where excessive pressure damages equipment or excessive pressure affects firefighting. This results in a stronger extinguishing agent supply and receiving capability.

[0053] Finally, it should be noted that in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0054] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. 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 the embodiments of this application.

Claims

1. A multiple-coupling donor-recipient foam fluid system characterized by, The front end liquid supply device (100) and the rear end water receiving device (200) are provided. The front end liquid supply device (100) comprises a foam mixing pipeline and a liquid supply pipeline (130). The liquid supply pipeline (130) has at least two liquid supply ends, each of which is used for connecting one of the rear end water receiving devices (200). Each of the liquid supply ends is provided with a detection member (131), each of which is used for detecting whether the rear end water receiving device (200) connected to the corresponding liquid supply end is running. The foam liquid flow rate of the foam mixing pipeline to the liquid supply pipeline (130) can be adjusted according to the detection result of the detection member (131).

2. The multiple-coupled donor-acceptor foam liquid system of claim 1, wherein, The detection member (131) comprises a pressure sensor.

3. The multiple-coupled donor-acceptor foam liquid system of claim 1, wherein, The foam mixing pipeline comprises a foam pump (140), a foam pipeline (110), a water pump (150) and a water inlet pipeline (120). The inlet end of the foam pipeline (110) is connected to the foam pump (140), and the outlet end of the foam pipeline (110) is connected to the water pump (150). The outlet end of the water inlet pipeline (120) and the inlet end of the liquid supply pipeline (130) are connected to the water pump (150). The rotation speed of the water pump (150) and the rotation speed of the foam pump (140) can be adjusted according to the detection result of the detection member (131).

4. The multiple-coupled donor-acceptor foam liquid system of claim 3, wherein, A foam flow meter (112) is arranged on the foam pipeline (110).

5. The multiple-coupling donor-recipient bubble system of claim 3 wherein, A water flow meter (122) is arranged on the water inlet pipeline (120).

6. The multiple-coupling donor-recipient bubble foam system of claim 3, wherein, An inlet foam valve (111) is further arranged on the foam pipeline (110).

7. The multiple-coupling donor-recipient bubble system of claim 3 wherein, A water inlet valve (121) is arranged on the water inlet pipeline (120).

8. The multiple-coupling donor-recipient foam fluid system of claim 1 wherein, The rear end water receiving device (200) comprises an inlet pipeline (210), a liquid delivery pump (220) and an outlet pipeline (230) connected in sequence, the inlet pipeline (210) is connected to the liquid supply pipeline (130), the inlet pipeline (210) is provided with an inlet valve (211), and the outlet pipeline (230) is provided with an outlet valve (231).

9. The multiple-coupling donor-recipient foam fluid system of claim 8 wherein, An inlet pressure gauge (212) is arranged on the inlet pipeline (210).

10. The multiple-coupling donor-recipient bubble system of claim 8, wherein, An outlet pressure gauge (232) is arranged on the outlet pipeline (230).

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