Fire fighting truck with multi-path foam proportion control function and foam control system of fire fighting truck

Abstract

The utility model provides a foam control system which comprises a water supply system and a foam supply system, the water supply system comprises a water tank, a fire pump, a pump water inlet pipeline and a pump water outlet pipeline; the foam supply system comprises a foam tank, a foam pump liquid inlet pipeline, a foam pump, a foam pump liquid outlet pipeline and a foam flow control valve; by controlling the foam flow of the foam pump liquid outlet pipe main path and the foam pump liquid outlet pipe branch path and the water outlet flow of the pump water outlet pipeline, the fire fighting equipment can spray water and / or spray mixed foam formed by mixing foam and water. On the other hand, the utility model further provides a fire fighting truck capable of controlling the multi-way foam proportion.

Description

Technical Field

[0001] The utility model relates to fire fighting equipment, in particular to a multi-channel foam proportionally controlled fire fighting vehicle and a foam control system thereof. Background Art

[0002] In the process of firefighting, ordinary Class B foam fire trucks play an important role in firefighting in actual combat. The foam proportion mixing system of this type of vehicle in the market can be divided into two types: one is the water pump system integral ring pump negative pressure foam proportion mixing system, and the other is the water pump system integral positive pressure foam proportion mixing system. In the actual use of these two systems, there are two problems. The first problem is that due to the different flow rates of each outlet, when foam is sprayed at several outlets at the same time, the foam mixing effect is different, especially for pipelines with small flow rates, the foam sprayed has a very poor effect, which greatly affects the fire extinguishing efficiency. The second problem is that since the foam proportion mixing system is an integral water pump system, the result is that each pipeline can only spray water or foam. When dealing with multiple types of fire scenes, water and foam cannot be used flexibly at the same time to achieve only spraying water for cooling where cooling is required, and only spraying foam for fire extinguishing where fire is required.

[0003] Therefore, it is urgent to provide a fire truck with multi-channel foam proportional control and a foam control system thereof to overcome the above-mentioned defects. Summary of the invention

[0004] The utility model aims to provide a fire truck with multi-channel foam proportional control and a foam control system thereof, which can solve the above technical problems.

[0005] According to one aspect of the utility model, a foam control system of a fire truck is provided, comprising a water supply system and a foam supply system, wherein the water supply system comprises a water tank (4), a fire pump (11), a pump water inlet pipeline (12) and a pump water outlet pipeline (13) having a plurality of pump water outlet pipe branches; wherein the pump water inlet pipeline (12) is connected to the water tank (4), each pump water outlet pipe branch of the pump water outlet pipeline (13) is respectively connected to fire fighting equipment, and the pump water inlet pipeline (12) and the pump water outlet pipeline (13) are connected to the fire pump (11); the foam supply system comprises a foam tank (3), a foam pump liquid inlet pipeline (5), a foam pump (6), a foam pump liquid outlet pipeline (7) and a foam flow control valve (9); wherein the foam pump liquid outlet pipeline (7) comprises a foam pump liquid outlet pipe main pipeline (17) and a foam pump liquid outlet pipe main pipeline (18). The foam pump outlet pipe branch (18) is connected to the foam pump outlet pipe main line (17) and the foam pump outlet pipe branch (18) respectively, and is connected to each pump outlet pipe branch of the pump outlet pipe (13); the foam pump inlet pipe (5) is connected to the foam tank (3); the foam flow control valve (9) is respectively arranged in the foam pump outlet pipe main line (17) and the foam pump outlet pipe branch (18); the foam pump inlet pipe (5) and the foam pump outlet pipe (7) are connected to the foam pump (6); wherein, by respectively controlling the foam flow of the foam pump outlet pipe main line (17) and the foam pump outlet pipe branch (18) and the water flow in each pump outlet pipe branch of the pump outlet pipe (13), the fire-fighting equipment can spray water and / or spray mixed foam mixed with foam and water in a certain proportion.

[0006] Preferably, the control system (16) is used to respectively control the foam flow rate of the foam pump outlet pipe main line (17) and the foam pump outlet pipe branch line (18) and the water flow rate in each pump outlet pipe branch line of the pump outlet pipe (13), so that the fire-fighting equipment can spray water and / or spray the mixed foam.

[0007] Preferably, the water supply system further comprises a water outlet flow meter (14), wherein the water outlet flow meter (14) is arranged in each pump outlet pipe branch of the pump outlet pipe (13); the foam supply system further comprises a foam flow meter (10), wherein the foam flow meter (10) is respectively arranged in the foam pump outlet pipe branch (18) and the foam pump outlet pipe main line (17); the control system (16) controls the flow of the foam pump (6) and / or the foam flow control valve (9) according to the water outlet flow meter (14) and the foam flow meter (10) in the foam pump outlet pipe main line (17) and the foam pump outlet pipe branch (18), so that the water and foam in each pump outlet pipe branch of the pump outlet pipe (13) are mixed in a certain proportion.

[0008] Preferably, the foam pump liquid outlet pipeline (7) has a plurality of foam pump liquid outlet pipe branches (18); wherein each foam pump liquid outlet pipe branch (18) is connected to a corresponding pump outlet pipe branch.

[0009] Preferably, the foam control system further comprises: a water outlet one-way valve (15), wherein the water outlet one-way valve (15) is arranged in each pump outlet pipe branch of the pump outlet pipe (13).

[0010] Preferably, the foam control system further comprises: a foam outlet one-way valve (8), wherein the foam outlet one-way valve (8) is respectively arranged in the foam pump outlet pipe main line (17) and the foam pump outlet pipe branch line (18).

[0011] Preferably, each pump outlet pipe branch of the pump outlet pipe (13) is provided with a water outlet flow control valve; wherein the control system (16) controls the foam flow control valve (9) and the water outlet flow control valve, thereby controlling the foam flow in the foam pump outlet pipe main line (17) and the foam pump outlet pipe branch (18) and the water outlet flow in each pump outlet pipe branch of the pump outlet pipe (13), respectively.

[0012] Preferably, each of the pump outlet pipe branches of the pump outlet pipe (13) is provided with the water outlet flow control valve.

[0013] Preferably, the control system (16) has a control end, through which corresponding parameters can be input to control the mixing ratio of water and foam in each pump outlet pipe branch of the pump outlet pipe (13).

[0014] On the other hand, the utility model also provides a fire truck, which includes the foam control system mentioned above.

[0015] Preferably, the fire truck further comprises: a transmission system (2), one end of which is connected to the power take-off (1-1) on the chassis (1), and the other end of which is connected to the fire pump (11), for providing a power source for the fire pump (11).

[0016] Preferably, the transmission system (2) comprises: a plurality of connected transmission shafts.

[0017] Preferably, the fire truck further comprises an equipment box, wherein the transmission system (2), the water supply system, the foam supply system and the control system (16) are all accommodated in the equipment box.

[0018] The utility model provides a fire truck with multi-channel foam proportion control and a foam control system thereof. On the one hand, by arranging a water supply system and a foam supply system, the fire-fighting equipment can only spray water or spray mixed foam composed of foam and water in a certain proportion, so that different fire-fighting media can be freely combined and flexibly matched for fire-fighting in different fire scenes, thereby improving the fire-fighting efficiency and reducing the loss of fire-fighting media. On the other hand, by introducing a control system, the mixed foam proportion is made more accurate, and mixed foam of the required proportion and required flow rate can be sprayed for different types of fires, thereby further improving the fire-fighting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0020] Figure 1 A schematic structural diagram of a fire truck with multi-channel foam proportional control according to an embodiment of the utility model is shown;

[0021] Figure 2 A partial schematic diagram of a water supply pipeline and a foam supply pipeline of a fire truck according to an embodiment of the utility model is shown;

[0022] Figure 3 A flow chart showing a foam control method according to an embodiment of the present utility model is shown;

[0023] Figure 4 A flow chart showing a method for obtaining mixed foam according to an embodiment of the utility model. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0025] Figure 1 The schematic diagram of the structure of a fire truck with multi-channel foam proportional control is shown. Figure 2 The figure shows a partial schematic diagram of the water supply pipeline and foam supply pipeline of the fire truck. Figure 1 and Figure 2As shown, the fire truck includes a chassis 1, a transmission system 2, a water supply system, a foam supply system and an equipment box 19. The transmission system 2, the water supply system and the foam supply system are all contained in the equipment box 19; the water supply system includes a water tank 4, a fire pump 11, a pump water inlet pipeline 12 and a pump water outlet pipeline 13, the water tank 4 is connected to the pump water inlet pipeline 12, the pump water outlet pipeline 13 is connected to fire fighting equipment (such as fire hoses, fire monitors, foam monitors, etc.), and the pump water inlet pipeline 12 and the pump water outlet pipeline 13 are connected to the fire pump 11. Under the action of the fire pump 11, the water in the water tank 4 passes through the pump water inlet pipeline 12 and the pump water outlet pipeline 13. 3, sprayed by fire-fighting equipment, or mixed with the foam from the foam pump outlet pipeline 7 in a certain proportion to form mixed foam and then sprayed by fire-fighting equipment; the foam supply system includes a foam tank 3, a foam pump inlet pipeline 5, a foam pump 6, a foam pump outlet pipeline 7 and a foam flow control valve 9. Under the action of the foam pump 6, the foam in the foam tank 3 passes through the foam pump inlet pipeline 5 and the foam pump outlet pipeline 7, and then enters the pump outlet pipeline 13, and is mixed with the water in the pump outlet pipeline 13 in a certain proportion to form mixed foam, and then the mixed foam is sprayed by the fire-fighting equipment. The foam flow control valve 9 is arranged in the foam pump outlet pipeline 7, and is used to control the foam flow in the foam pump outlet pipeline 7.

[0026] Reference Figure 2 In the above embodiment, the foam pump outlet pipe 7 includes a foam pump outlet pipe main line 17 and a foam pump outlet pipe branch line 18, wherein the foam flow control valve 9 is provided in both the foam pump outlet pipe main line 17 and the foam pump outlet pipe branch line 18. Under the action of the foam pump 6, the foam from the foam tank 3 is mixed with the water of the pump outlet pipe 13 in a certain proportion to form mixed foam, and then the mixed foam is sprayed by the fire-fighting equipment 23. Alternatively, under the action of the foam pump 6, the foam from the foam tank 3 enters the pump outlet pipe 13 through the foam pump outlet pipe branch line 18, and is mixed with water in a certain proportion to form mixed foam, and then the mixed foam is sprayed by the fire-fighting equipment 23 and / or the fire-fighting equipment connected to the interfaces 20-22.

[0027] In the above embodiment, preferably, the foam pump outlet pipe branch 18 has two or more foam pump outlet pipe branches 18, and the pump outlet pipe 13 includes two or more pump outlet pipe branches, such as pump outlet pipe branches 20-22, etc. Each pump outlet pipe branch of the pump outlet pipe 13 is respectively connected with the foam pump outlet pipe main line 17 and the foam pump outlet pipe branch 18, for example, each foam pump outlet pipe branch 18 is connected with a corresponding one of the pump outlet pipe branches 20-22. More preferably, the number of the foam pump outlet pipe branches 18 is the same as the number of the pump outlet pipe branches 20-22.

[0028] In the above embodiment, when dealing with multiple types of fire scenes, water and foam can be used flexibly at the same time. Specifically, when only water is sprayed to cool down the place that only needs to be cooled, the foam supply system is turned off, and the water supply system is turned on, so that the fire-fighting equipment only sprays water, for example, the foam pump 6, the foam pump outlet pipe main line 17 and the foam pump outlet pipe branch line 18 are turned off, so that the fire-fighting equipment only sprays water; when it is necessary to spray mixed foam for fire extinguishing, the water supply system and the foam supply system are turned on, so that the foam of at least one of the foam pump outlet pipe main line 17 and the multiple foam pump outlet pipe branches 18 is mixed with the water of the corresponding pump outlet pipe branch of the pump outlet pipe 13 in a certain proportion, and the fire-fighting equipment sprays mixed foam formed by mixing water and foam in a certain proportion.

[0029] For example, the main foam pump outlet pipe 17 and the pump outlet pipe branch of the pump outlet pipe 13 corresponding to the main foam pump outlet pipe 17 are opened, and water and foam are mixed in a certain proportion, and the fire-fighting equipment sprays mixed foam formed by mixing water and foam in a certain proportion; when it is necessary to spray water and mixed foam at the same time to extinguish fires in different places, the main foam pump outlet pipe 17 and at least one of the multiple foam pump outlet pipe branches 18 are closed by controlling the foam flow control valve 9, so that at least one fire-fighting equipment Spray water and at least one fire-fighting equipment sprays mixed foam. For example, the foam flow control valve 9 in the foam pump outlet pipe branch 18 connected to the pump outlet pipe branch 20-22 is controlled so that the foam pump outlet pipe branch 18 is closed. Then the fire-fighting equipment connected to the pump outlet pipe branch 20-22 sprays water, and the fire-fighting equipment 23 connected to the foam pump outlet pipe main line 17 sprays mixed foam which is a mixture of the foam in the foam pump outlet pipe main line 17 and the water in the pump outlet pipe 13 in a certain proportion.

[0030] In the above embodiment, preferably, a water outlet flow control valve (not shown) is provided in the above pump outlet pipe 13 to control the water outlet flow in the above pump outlet pipe 13. More preferably, a water outlet flow control valve (not shown) is provided in each pump outlet pipe branch of the above pump outlet pipe 13 to control the water outlet flow in each pump outlet pipe branch of the above pump outlet pipe 13, so as to more conveniently control the mixing ratio of the water in the above pump outlet pipe 13 and the foam in the above foam pump outlet pipe main pipe 17 and the plurality of foam pump outlet pipe branches 18.

[0031] In the above embodiment, preferably, the fire truck further includes a control system 16, a water outlet flow meter 14 is provided in the pump outlet pipe 13, and a foam flow meter 10 is provided in the foam pump outlet pipe 7. The control system 16 can control the operation of the water outlet flow meter 14, the foam flow meter 10, the foam flow control valve 9, the foam pump 6, the fire pump 11, the water outlet flow control valve and other components. More preferably, each pump outlet pipe branch of the pump outlet pipe 13 is provided with a water outlet flow meter 14, and each foam pump outlet pipe branch of the foam pump outlet pipe 7 is provided with a foam flow meter 10.

[0032] In the above embodiment, the control system 16 accurately controls the flow of the foam pump 6 and / or the foam flow control valve 9 by receiving the flow data of the water outlet flow meter 14 and the flow data of the foam flow meter 10, which not only enables the water and foam in each pump outlet pipe branch of the pump outlet pipe 13 to be mixed into mixed foam according to the proportion preset in the control system 16, but also can control the flow of the sprayed mixed foam, so that the foam control system can spray mixed foam of the required proportion and required flow for different types of fires, further improving the fire extinguishing efficiency.

[0033] In the above embodiment, preferably, the chassis 1 includes a power take-off 1-1, one end of the transmission system 2 is connected to the power take-off 1-1, and the other end is connected to the fire pump 11, for providing a power source for the fire pump 11 to increase the water output rate.

[0034] In the above embodiment, preferably, the pump water outlet pipeline 13 is provided with a water outlet check valve 15, and the foam pump liquid outlet pipeline 7 is provided with a foam liquid outlet check valve 8, so as to prevent the backflow of water in the pump water outlet pipeline 13 and the backflow of foam in the foam pump liquid outlet pipeline 7. More preferably, each pump water outlet pipe branch of the pump water outlet pipeline 13 is provided with the water outlet check valve 15, and the foam pump liquid outlet pipe main line 17 and each foam pump liquid outlet pipe branch 18 of the foam pump liquid outlet pipeline 7 are provided with a foam liquid outlet check valve 8.

[0035] In the above embodiment, preferably, the foam outlet one-way valve 8 is arranged near the outlet of the foam pump 6 .

[0036] In this embodiment, preferably, the control system 16 has a control end, through which corresponding parameters are input to control the water and foam mixing ratio in the pump outlet pipe 13, so that the foam control system can automatically adjust the water and foam mixing ratio according to preset parameters without manual judgment, thereby reducing the personal risk during fire fighting and improving the fire fighting efficiency. In this embodiment, preferably, the transmission system 2 includes a plurality of connected transmission shafts, which can not only quickly transmit the driving force to the fire pump 11, but also can be quickly disassembled and installed to reduce maintenance costs.

[0037] The utility model also provides a foam control method, so that the control system 16 selects one of the following fire extinguishing methods or a combination of multiple fire extinguishing methods according to the received instructions: spraying water, spraying foam, and spraying mixed foam mixed with foam and water.

[0038] Figure 3 FIG. 2 is a flow chart showing a foam control method according to an embodiment of the present utility model. Figure 3 As shown, the method comprises the following steps:

[0039] When a fire occurs, step S1 is executed, and the control system 16 receives a fire extinguishing method instruction and starts the fire extinguishing process.

[0040] After the fire extinguishing process is started, step S2 is executed, and the control system 16 determines which fire extinguishing method is adopted for this fire extinguishing.

[0041] In step S3, it is determined whether to spray water according to the received fire extinguishing method.

[0042] If it is determined to be water spraying, step S4 is executed to start the water spraying fire extinguishing mode: the foam supply system is closed, and the water supply system is opened, so that the fire fighting equipment only sprays water.

[0043] If it is determined that not only water is sprayed, step S5 is executed, and the control system 16 determines whether only the mixed foam is sprayed.

[0044] If it is determined that only mixed foam is to be sprayed, step S6 is executed to start the mixed foam fire extinguishing mode: the water supply system and the foam supply system are turned on, so that the foam pump outlet pipe main line 17 and at least one of the multiple foam pump outlet pipe branches 18 corresponding to the pump outlet pipe 13 mix water and foam in a certain proportion, so that the fire-fighting equipment sprays mixed foam formed by the mixture of water and foam.

[0045] If it is determined that more than the mixed foam is sprayed, step S7 is executed to determine whether water and the mixed foam are sprayed simultaneously.

[0046] If it is determined to be spraying water and mixed foam, execute step S8 to start the water and mixed foam fire extinguishing mode: by controlling the above-mentioned foam flow control valve 9, close the above-mentioned foam pump outlet pipe main line 17 and at least one of the multiple foam pump outlet pipe branches 18, so that at least one fire-fighting equipment sprays water and at least one fire-fighting equipment sprays mixed foam.

[0047] When the injection in step S4, S6 or S8 meets the preset conditions, step S11 is executed to determine whether an end instruction is received. If no end instruction is received, the end instruction is continued to be waited for. If an end instruction is received, the entire process is terminated.

[0048] The advantage of the above process is that when a fire occurs, different areas at the same fire scene often require different fire-fighting media for fire extinguishing, which is difficult to handle with traditional foam control methods. This method can automatically select a free combination of water and mixed foam fire extinguishing methods and flexibly match them. It can not only deal with fire scenes with complex scenes, but also further improve the fire extinguishing efficiency.

[0049] Figure 4 Shows Figure 3 Flow chart of the mixed foam obtaining method of steps S6 and S8. Figure 4 As shown, the method includes the following steps:

[0050] After it is determined that the foam needs to be mixed, step S201 is executed to collect water flow data from the water flow meter in the water outlet pipeline of the pump and foam flow data from the foam flow meter in the liquid outlet branch of the foam pump.

[0051] After completing step S201, step S202 is executed to control the foam flow of the foam pump and the foam flow control valve according to the collected water flow data and foam flow data.

[0052] Then, step S203 is performed, in which the foam in the branch of the foam pump liquid outlet pipe is mixed with the water in the pump water outlet pipe according to a predetermined ratio to obtain mixed foam.

[0053] The advantage of the above process is that when a fire occurs, the foam pump and the foam flow control valve can be controlled according to the water flow data and the foam flow data, so as to quickly obtain the required proportion of mixed foam, thereby improving the fire extinguishing efficiency.

[0054] In this embodiment, the control system 16 collects the water outlet flow data of the water outlet flow meter 14 in the pump water outlet pipe 13 and the foam flow data of the foam flow meter 10 in the above-mentioned foam pump liquid outlet pipe main line 17 and / or the foam pump liquid outlet pipe branch line 18; wherein the control system 16 controls the flow of the foam pump 6 and / or the foam flow control valve 9 based on the water outlet flow data and the foam flow data.

[0055] Setting up the control system 16 can receive the water flow data and foam flow data more quickly, and can also more accurately control the foam flow of the foam pump 6 and / or the foam flow control valve 9, so as to obtain the required proportion of mixed foam more quickly, further improving the fire extinguishing efficiency.

[0056] In this embodiment, the control system 16 collects foam flow data from the foam flowmeter 10 in the above-mentioned foam pump outlet pipe main line 17 and multiple foam pump outlet pipe branches 18, and collects water outlet flow data from the water outlet flowmeter 14 in multiple pump outlet pipe branches, and controls the flow of the foam pump 6 and / or the foam flow control valve 9 according to the foam flow data in the above-mentioned foam pump outlet pipe main line 17 and each foam pump outlet pipe branch 18 and the water outlet flow data of a pump outlet pipe branch connected thereto.

[0057] The control system 16 can collect the foam flow data of the above-mentioned foam pump outlet pipe main line 17 and / or multiple foam pump outlet pipe branches 18 and the water flow data of multiple pump outlet pipe branches, and control the flow of the foam pump 6 and / or the above-mentioned foam pump outlet pipe main line 17 and the foam flow control valve 9 in each foam pump outlet pipe branch 18, so as to quickly and accurately generate multiple groups of mixed foams in different proportions, which can not only deal with fire scenes with complex scenes, but also further improve the fire extinguishing efficiency.

[0058] On the one hand, the utility model provides a water supply system and a foam supply system so that the fire-fighting equipment can spray water or a mixed foam of foam and water in a certain proportion, thereby realizing the free combination and flexible matching of different fire-fighting media for fire-fighting in different fire scenes, thereby improving the fire-fighting efficiency and reducing the loss of fire-fighting media. On the other hand, by introducing a control system, the mixed foam ratio is made more accurate, and the mixed foam of the required proportion and required flow rate can be sprayed for different types of fires, thereby further improving the fire-fighting efficiency.

[0059] It should be noted that, for certain implementation methods, if they are not the key content of the present invention and are well known to ordinary technicians in the relevant technical field, they are not described in detail in the drawings or the main text of the specification. In this case, they can be understood by referring to the relevant prior art.

[0060] Further, the purpose of providing the above embodiments is only to enable the present invention to meet legal requirements, and the present invention can be implemented in many different forms and should not be construed as being limited to the embodiments described herein. In addition, the above definitions of the various elements and methods are not limited to the various specific structures, shapes or methods mentioned in the embodiments, and those of ordinary skill in the art can simply modify or replace them.

[0061] It should also be noted that the directional terms mentioned in the embodiments, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", etc., are only reference directions of the drawings and are not intended to limit the scope of protection of the present invention. Throughout the drawings, the same elements are represented by the same or similar reference numerals. Conventional structures or constructions will be omitted when they may cause confusion in the understanding of the present invention. And the shapes and sizes of the components in the figures do not reflect the actual size and proportion, but only illustrate the contents of the embodiments of the present invention. In addition, in the claims, any reference symbols between brackets should not be constructed as limitations on the claims.

[0062] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0063] Furthermore, the word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The ordinal numbers used in the specification and claims, such as "first", "second", as well as Arabic numerals, letters, etc., to modify the corresponding elements are intended only to make a clear distinction between an element with a certain name and another element with the same name, and do not mean that the element has any ordinal number, nor do they represent the order of one element and another element.

[0064] Similarly, it should be understood that in order to streamline the present invention and aid in understanding one or more of the various aspects of the present invention, in the above description of exemplary embodiments of the present invention, the various features of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof. However, the method of the present invention should not be interpreted as reflecting the following intention: the claimed invention requires more features than those explicitly stated in each claim. More specifically, as reflected in the claims, the various aspects of the present invention are less than all the features of the previous single embodiment. Therefore, the claims that follow the specific embodiment are hereby expressly incorporated into the specific embodiment, wherein each claim itself serves as a separate embodiment of the present invention.

[0065] The specific embodiments described above provide a detailed description of the purpose, technical solutions and beneficial effects of the utility model. It should be understood that the above description is only a specific embodiment of the utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A foam control system for a fire truck, comprising a water supply system and a foam supply system, characterized in that: The water supply system comprises a water tank (4), a fire pump (11), a pump water inlet pipeline (12) and a pump water outlet pipeline (13) having a plurality of pump water outlet pipe branches; wherein the pump water inlet pipeline (12) is connected to the water tank (4), each pump water outlet pipe branch of the pump water outlet pipeline (13) is respectively connected to fire fighting equipment, and the pump water inlet pipeline (12) and the pump water outlet pipeline (13) are connected to the fire pump (11); The foam supply system comprises a foam tank (3), a foam pump inlet pipeline (5), a foam pump (6), a foam pump outlet pipeline (7) and a foam flow control valve (9); wherein the foam pump outlet pipeline (7) comprises a foam pump outlet pipeline main pipeline (17) and a foam pump outlet pipeline branch pipeline (18); the foam pump outlet pipeline main pipeline (17) and the foam pump outlet pipeline branch pipeline (18) are respectively connected to each pump outlet pipeline branch pipeline of the pump outlet pipeline (13); the foam pump inlet pipeline (5) is connected to the foam tank (3); the foam flow control valve (9) is respectively arranged in the foam pump outlet pipeline main pipeline (17) and the foam pump outlet pipeline branch pipeline (18); the foam pump inlet pipeline (5) and the foam pump outlet pipeline (7) are connected to the foam pump (6); By respectively controlling the foam flow rates of the foam pump outlet pipe main line (17) and the foam pump outlet pipe branch line (18) and the water flow rates in each pump outlet pipe branch line of the pump outlet pipe line (13), the fire fighting equipment can spray water and / or spray mixed foam composed of foam and water in a certain proportion.

2. The foam control system according to claim 1, characterized in that: It also includes a control system (16), which is used to respectively control the foam flow rate of the foam pump outlet pipe main line (17) and the foam pump outlet pipe branch line (18) and the water flow rate in each pump outlet pipe branch line of the pump outlet pipe (13), so that the fire-fighting equipment can spray water and / or spray the mixed foam.

3. The foam control system according to claim 1, characterized in that: Also includes a control system (16), The water supply system further comprises a water outlet flow meter (14), wherein the water outlet flow meter (14) is arranged in each pump outlet pipe branch of the pump outlet pipe (13); The foam supply system further comprises a foam flow meter (10), wherein the foam flow meter (10) is respectively arranged in the foam pump liquid outlet pipe branch (18) and the foam pump liquid outlet pipe main pipe (17); The control system (16) controls the flow rate of the foam pump (6) and / or the foam flow control valve (9) according to the water outlet flow meter (14) and the foam flow meter (10) in the foam pump outlet pipe main line (17) and the foam pump outlet pipe branch line (18), so that the water and foam in each pump outlet pipe branch line of the pump outlet pipe (13) are mixed in a certain proportion.

4. The foam control system according to any one of claims 1 to 3, characterized in that: The foam pump liquid outlet pipeline (7) has a plurality of foam pump liquid outlet pipe branches (18); Wherein, each of the foam pump liquid outlet pipe branches (18) is connected to a corresponding pump water outlet pipe branch.

5. The foam control system according to any one of claims 1 to 3, characterized in that: Also includes: A water outlet one-way valve (15), wherein the water outlet one-way valve (15) is arranged in each pump water outlet pipe branch of the pump water outlet pipeline (13).

6. The foam control system according to any one of claims 1 to 3, characterized in that: Also includes: A foam liquid outlet one-way valve (8), wherein the foam liquid outlet one-way valve (8) is respectively arranged in the foam pump liquid outlet pipe main line (17) and the foam pump liquid outlet pipe branch line (18).

7. The foam control system according to claim 3, characterized in that: Each pump outlet pipe branch of the pump outlet pipe (13) is provided with a water outlet flow control valve; The control system (16) controls the foam flow control valve (9) and the water outlet flow control valve, thereby respectively controlling the foam flow in the foam pump outlet pipe main line (17) and the foam pump outlet pipe branch line (18) and the water outlet flow in each pump outlet pipe branch line of the pump outlet pipe (13).

8. The foam control system according to claim 7, characterized in that: The water outlet flow control valve is provided in each pump outlet pipe branch of each pump outlet pipe (13).

9. The foam control system according to claim 2, characterized in that: The control system (16) has a control end, through which corresponding parameters can be input to control the mixing ratio of water and foam in each pump outlet pipe branch of the pump outlet pipe (13).

10. A fire truck, characterized in that: include: The foam control system according to any one of claims 1 to 9.

11. The fire truck according to claim 10, characterized in that: Also includes: The transmission system (2) has one end connected to the power take-off (1-1) on the chassis (1) and the other end connected to the fire pump (11) for providing a power source for the fire pump (11).

12. The fire truck according to claim 11, characterized in that: The transmission system (2) comprises: a plurality of connected transmission shafts.

13. The fire truck according to claim 10, characterized in that: It also includes an equipment box, wherein the transmission system (2), the water supply system, the foam supply system and the control system (16) are all accommodated in the equipment box.

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