Triple foam generator for fire fighting
By using a triple foam generator design, the foaming ratio is increased and precise control is achieved, solving the technical problems of foam generators on high-pressure fire trucks and improving the fire extinguishing effect.
Patent Information
- Application Number
- CN202422958481.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-02
AI Technical Summary
Existing foam generators cannot meet the requirements of high flow rate and high foaming ratio on high-pressure fire trucks, and cannot effectively control the spray area, resulting in foam waste.
The device employs a three-stage foam generator design, including a main channel, a spiral jet injector, a foam tank, a support arm, and a guide hood. By combining the spiral jet injector with a fine metal screen, the foaming ratio is increased, and precise control is achieved through the adjustment of the support arm and guide hood, resulting in efficient foam coverage.
It increases the foam expansion ratio and coverage area, ensuring that the foam accurately covers the area that needs to be extinguished, avoiding foam waste and improving the fire extinguishing effect.
Smart Images
Figure CN223627985U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to fire fighting equipment technical field especially relates to a fire service three -in -one foam generator. BACKGROUND
[0002] In the fire fighting field, oil fire has been a huge challenge, the inflammability and fluidity of oil make the fire spread rapidly, difficult to control;
[0003] The current enough effective response oil fire - snow gun multiple foam generator, snow gun multiple foam generator has amazing foaming capacity, its single foaming multiple is up to 75 times above, this is that traditional fire fighting equipment is incomparable, they can produce abundant foam group in short time, these foams can stay on the surface of fuel for a long time, effectively insulate air, inhibit the spread of flame;
[0004] Compared with the traditional fire water cannon, snow gun multiple foam generator has obvious advantages in extinguishing oil fire, water cannon can reduce the fire rapidly, but for oil fire, its fire extinguishing effect is not remarkable, and snow gun multiple foam generator can quickly form a foam protective layer, insulate air and flame contact, thereby achieving better fire extinguishing effect;
[0005] But the current foam generator releases foam in the way, its foaming multiple and efficiency are low, when applied to high spray fire engine, it cannot meet the demand of large flow and foaming multiple, and cannot effectively control the spraying to the specified area, leading to foam group waste, therefore, we propose a fire service three -in -one foam generator. UTILITY MODEL CONTENTS
[0006] The utility model aims at solving the shortcomings in the prior art, the current foam generator releases foam in the way, its foaming multiple and efficiency are low, when applied to high spray fire engine, it cannot meet the demand of large flow and foaming multiple, and cannot effectively control the spraying to the specified area, leading to foam group waste.
[0007] In order to realize the above -mentioned purpose, the utility model adopts the following technical scheme:
[0008] A fire service three -in -one foam generator, including main channel, the main channel one end along the horizontal line is equipped with the connecting port, the connecting port is three, is installed on each connecting port spiral jet flow ware, the periphery of spiral jet flow ware far away from the connecting port end is installed on the foam barrel, the foam barrel is installed with metal fine screen, is rotationally connected with the supporting arm outside the both side foam barrel, and the supporting arm extends to the foam barrel far from the spiral jet flow ware end, and is installed with the guide cover.
[0009] Furthermore, the main channel has an external interface at the center of the end away from the connection port, which is connected to an external foam concentrate tank. A pressure pump is used to deliver the foam concentrate from the foam concentrate tank to the connection port.
[0010] Furthermore, a support is fixed around the spiral jet ejector, which connects the spiral jet ejector to the foam bucket, so that the outlet of the spiral jet ejector corresponds to the center of the foam bucket.
[0011] Furthermore, the metal fine screen has a double-layer design.
[0012] Furthermore, the port of the support arm foam bucket is horizontal and has a maximum upward rotation angle of 60°.
[0013] Furthermore, a cylinder is installed on the outer side of the outrigger, with the cylinder output end facing upwards. Both the cylinder and the foam tank are installed on the high-pressure water jet fire truck.
[0014] Furthermore, the guide cover is designed with openings at the foam barrel end and the bottom end.
[0015] Furthermore, the foam bucket and guide cover are made of 6061 aluminum alloy.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] This utility model addresses the unique characteristics of petrochemical fires, where the coverage area of traditional high-pressure water jet fire truck foam cannons is insufficient for individual work areas. By changing the type of spraying device and the foam generation method, a detachable triple foam cannon is installed on the boom (high-pressure water jet fire truck) to cover storage tank fires with foam. This device has a large flow rate, a wide foam coverage area, and is detachable, thus solving the shortcomings of current traditional high-pressure water jet trucks.
[0018] 1) By increasing the number of cannons, the foam generation method of traditional foam cannons with strong release is changed. The foam raw liquid is mixed and collided with air through a double-layer metal fine screen to stimulate foam fission and increase the foaming effect. This maximizes the foaming ratio and efficiency of the foam, solving the problem that traditional high-pressure spray truck foam cannons cannot meet the requirements of large flow and high foaming ratio.
[0019] 2) A rotatable support arm and guide cover are installed on the outside of the foam tank. The angle of the support arm and the position of the guide cover can be adjusted by extending and retracting the cylinder. The foam can be released directly onto the rescued object at close range under the guidance of the guide cover, or the guide cover can be raised to spray the foam onto the rescued object at a distance. The spray direction and coverage of the foam can be precisely controlled. This design avoids the waste of foam and ensures that the foam can accurately cover the area that needs to be extinguished, thereby improving the fire extinguishing effect.
[0020] In summary, the foam generator is suitable for petrochemical tank fire of multi-overlapping complex type, has the advantages of being detachable, convenient to carry, wide coverage, good foam generation effect and the like. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 A whole structure schematic view of the three-connection foam generator for fire fighting is provided in the utility model;
[0022] Figure 2 A foam bucket side surface structure schematic view of the three-connection foam generator for fire fighting is provided in the utility model;
[0023] Figure 3 A main passage surface schematic view of the three-connection foam generator for fire fighting is provided in the utility model;
[0024] Figure 4 A whole structure top view schematic view of the three-connection foam generator for fire fighting is provided in the utility model.
[0025] Legend: 1, main passage; 11, external interface;
[0026] 2, connecting port;
[0027] 3, spiral jet device; 31, support;
[0028] 4, foam bucket;
[0029] 5, metal fine mesh;
[0030] 6, support arm; 61, air cylinder;
[0031] 7, guide cover. DETAILED DESCRIPTION
[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0033] In order to facilitate understanding of the utility model, the utility model will be more fully described below with reference to the related utility model, and several embodiments of the utility model are given. However, the utility model can be realized in many different forms, and is not limited to the embodiments described in the text. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.
[0034] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0036] Example 1
[0037] like Figures 1-4 As shown, this utility model provides a technical solution: a three-stage foam generator for fire fighting, including a main channel 1. The main body is the main channel 1. One end of the main channel 1 is provided with a connection port 2 along a horizontal line. There are three connection ports 2. A spiral jet injector 3 is installed on each connection port 2. These three connection ports 2 are used to connect the spiral jet injector 3 to ensure that the foam concentrate can be evenly distributed to three foam tanks 4. The outer periphery of the spiral jet injector 3 away from the connection port 2 is installed on the foam tank 4. Through its special spiral structure, it can effectively spray and disperse the foam concentrate into the foam tank 4. A fine metal screen 5 is installed inside the foam tank 4. Support arms 6 are rotatably connected to the outer sides of the foam tanks 4 on both sides. The support arms 6 extend towards the foam tank 4 away from the spiral jet injector 3 and are equipped with guide covers 7.
[0038] It should be noted that the double-layer design of the metal fine mesh 5 allows the foam concentrate to mix and collide with air through the double-layer metal fine mesh 5, stimulating foam cracking and increasing the foaming effect.
[0039] Example 2
[0040] like Figures 1-4 As shown, the main channel 1 has an external interface 11 at the center of the end away from the connection port 2. The external interface 11 is connected to the external foam raw material tank. The foam raw material in the foam raw material tank is transported to the connection port 2 by a pressure pump. The pressure pump is used to transport the foam raw material in the foam raw material tank to the connection port 2 to provide sufficient pressure for the spiral jet 3.
[0041] The support 31 is fixed to the periphery of the spiral jet device 3, the spiral jet device 3 is connected with the foam barrel 4 through the support 31, the outlet of the spiral jet device 3 corresponds to the center of the foam barrel 4, the support 31 is fixed to the periphery of the spiral jet device 3, the spiral jet device 3 is ensured to correspond to the center of the foam barrel 4, and the spraying efficiency is improved.
[0042] The port of the support arm 6 is horizontal to the foam barrel 4, and the maximum upward rotation angle is 60°.
[0043] The gas cylinder 61 is arranged on the outer side of the support arm 6, and the output end of the gas cylinder 61 is arranged upwards; the gas cylinder 61 and the foam barrel 4 are both arranged on the high spray fire fighting vehicle; the guide cover 7 is designed to correspond to the end and low end openings of the foam barrel 4; through the extension and contraction of the gas cylinder 61, the foam liquid can be directly sprayed on the rescued object under the guidance of the guide cover 7, or the guide cover 7 is lifted to spray the foam on the rescued object at a distance.
[0044] The foam barrel 4 and the guide cover 7 are made of 6061 alloy aluminum, and the 6061 alloy aluminum is high-temperature resistant.
[0045] The working process of the utility model is as follows: when the three-foam generator for fire fighting is used, the three-foam generator for fire fighting is installed on the high spray fire fighting vehicle, the external foam liquid tank and the pressurizing pump are connected, the pressurizing pump is started, the foam liquid in the foam liquid tank is transported to the connecting port 2 of the main channel 1 through the external interface 11, the foam liquid enters the spiral jet device 3 through the connecting port 2, is uniformly dispersed into the foam barrel 4 through the spraying of the spiral structure, and is mixed and collided with air under the action of the double-layer metal fine screen 5, so that the foam fission is excited, the foaming effect is increased, the angle of the support arm 6 and the guide cover 7 is adjusted according to actual needs, the guide cover 7 is aligned with the rescued object when the foam needs to be sprayed at a short distance, and the guide cover 7 is lifted and the spraying direction is adjusted when the foam needs to be sprayed at a long distance.
[0046] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A three-way foam generator for fire fighting, characterized in that: The utility model provides a kind of high-pressure foam nozzle, including main channel (1), the main channel (1) one end is provided with connecting port (2) along horizontal line, the connecting port (2) is three, spiral jet (3) is installed on each connecting port (2), the peripheral of spiral jet (3) is installed on foam barrel (4) away from connecting port (2) end, metal fine screen (5) is installed in foam barrel (4), rotatingly connected with support arm (6) on the outside of both sides foam barrel (4), and support arm (6) extends to foam barrel (4) away from spiral jet (3) end, and it is installed with guide cover (7).
2. A three-way foam generator for fire fighting according to claim 1, characterized in that: The main channel (1) is provided with external interface (11) in the center away from connecting port (2) end, is connected with external foam stock solution tank by external interface (11), and foam stock solution in foam stock solution tank is sent to connecting port (2) by pressurizing pump.
3. A three-way foam generator for fire fighting according to claim 1, characterized in that: The peripheral of spiral jet (3) is fixed with support (31), and spiral jet (3) is connected with foam barrel (4) by support (31), so that the outlet of spiral jet (3) corresponds with the center of foam barrel (4).
4. A three-way foam generator for fire fighting according to claim 1, characterized in that: The metal fine screen (5) is double-layer design.
5. A three-way foam generator for fire fighting according to claim 1, characterized in that: The support arm (6) is horizontally and maximum upward rotation angle is 60 ° at the port of foam barrel (4).
6. A three-way foam generator for fire fighting according to claim 1, characterized in that: The outer side of support arm (6) is installed with air cylinder (61), and the output end of air cylinder (61) is arranged upwards, and air cylinder (61) and foam barrel (4) are both installed on high-pressure foam nozzle.
7. A three-way foam generator for fire fighting according to claim 1, characterized in that: The guide cover (7) is designed with opening corresponding to the end and low end of foam barrel (4).
8. A three-way foam generator for fire fighting according to claim 1, characterized in that: The foam barrel (4) and guide cover (7) are made of 6061 alloy aluminum.