Large-flow three-phase jet elevating fire truck boom
By dividing the main liquid inlet pipe into multiple parts and converging them in a converging pipe, combined with the dry powder feed pipe design, the problem of uneven mixing of water and foam in the existing technology is solved, and an efficient fire extinguishing effect is achieved.
Patent Information
- Application Number
- CN202422597991.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-10-28
AI Technical Summary
In existing high-rise three-phase jet fire trucks, after increasing the spray flow rate of the fire monitor, the water and foam are not mixed evenly, resulting in low fire extinguishing efficiency.
The main liquid inlet pipe is divided into four parts, and the parts are gathered in the converging pipe through the first and second liquid inlet pipes, so that the water and foam mixture can collide and converge multiple times in the liquid inlet pipe. Combined with the design of the dry powder feed pipe and the three-phase jet fire monitor, it is ensured that water, foam and dry powder are sprayed out at the same time.
It improves the jet flow rate of the fire truck, ensures the uniformity of the mixing of water and foam, and thus improves the fire extinguishing efficiency.
Smart Images
Figure CN223366135U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fire truck booms, in particular to a large-flow three-phase jet lifting boom for a fire truck. Background Art
[0002] Petrochemical companies involve a wide variety of flammable and explosive substances in large quantities, with complex production processes and high fire risks. Once a fire breaks out, it burns quickly and spreads rapidly, easily forming large, three-dimensional fires that are prone to rekindling, making firefighting extremely difficult. To rapidly extinguish fires of varying severity, existing high-rise three-phase jet fire trucks require increased discharge rates from fire monitors. However, this increased discharge rate results in uneven mixing of water and foam, resulting in inefficient firefighting. Utility Model Content
[0003] The purpose of the utility model is to provide a large-flow three-phase jet lifting fire truck boom to solve the above-mentioned shortcomings in the prior art.
[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a large-flow three-phase jet lifting fire truck arm, comprising: a first support arm, the first support arm is rotatably set on the fire truck, the front end of the first support arm is rotatably set with a second support arm through a hollow shaft, a main liquid inlet pipe is provided below the first support arm, the main liquid inlet pipe is connected with a first branch pipe, a second branch pipe, a third branch pipe, and a fourth branch pipe, the first branch pipe and the second branch pipe are converged and connected to the first liquid inlet pipe, the third branch pipe and the fourth branch pipe are converged and connected to the second liquid inlet pipe, the first liquid inlet pipe and the second liquid inlet pipe are arranged along both sides of the first support arm and converge and connect to the confluence pipe at the end of the first support arm, and the confluence pipe is connected to the liquid outlet pipe through a first rotary joint.
[0005] Furthermore, the first rotary joint is located in the hollow shaft, one end of the first rotary joint is fixedly connected to the merging pipe, and the other end of the first rotary joint is fixedly connected to the liquid outlet pipe.
[0006] Furthermore, a dry powder feed pipe is provided on one side of the first support arm, and the dry powder feed pipe is connected to the dry powder discharge pipe through a second rotary joint at the front end of the first support arm, and the dry powder discharge pipe is arranged along the second support arm.
[0007] Furthermore, the liquid outlet pipe is arranged on the side of the second support arm, and the liquid outlet pipe and the dry powder discharge pipe are combined in the three-phase jet fire monitor.
[0008] Furthermore, both sides of the first support arm are fixedly connected to a support frame, and the first branch pipe, the second branch pipe, the dry powder feed pipe, the third branch pipe and the fourth branch pipe are all mounted on the support frame.
[0009] Furthermore, the dry powder discharge pipe is divided into two sections, the front section is fixedly connected to one end of the second rotary joint and is a hose, and the rear section is fixedly connected to the three-phase jet fire monitor.
[0010] In the above technical solution, the utility model provides a large flow three-phase jet lifting fire truck boom with the beneficial effects of:
[0011] The utility model divides a total liquid inlet pipe for conveying a water and foam mixture into four parts, namely a first branch pipe, a second branch pipe, a third branch pipe and a fourth branch pipe, and the first branch pipe and the second branch pipe form a first liquid inlet pipe, the third branch pipe and the fourth branch pipe form a second liquid inlet pipe, and finally the first liquid inlet pipe and the second liquid inlet pipe are gathered in a converging pipe, so that the water and foam mixture collide and converge multiple times in the liquid inlet pipe, so that the water and foam are further mixed. While greatly improving the jet flow rate of the fire truck, it can ensure that the water and foam are mixed evenly, thereby improving the fire extinguishing efficiency.
[0012] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
[0013] This application document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.
[0015] Figure 1 A top view of a fire truck provided in an embodiment of the present utility model;
[0016] Figure 2 A schematic diagram of the structure of the rotating connection of the support arm provided in an embodiment of the utility model;
[0017] Figure 3 A top view of the rotating connection of the support arm provided in an embodiment of the present utility model;
[0018] Figure 4 A schematic diagram of the structure of the liquid inlet position provided by an embodiment of the utility model;
[0019] Figure 5 A front view of the rotating connection of the support arm provided in an embodiment of the present utility model;
[0020] Figure 6The embodiment of the present invention provides Figure 5 Cross-sectional view at AA in the middle;
[0021] Figure 7 The embodiment of the present invention provides Figure 5 Cross-sectional view at the middle BB.
[0022] Description of reference numerals:
[0023] 1. First support arm; 2. Second support arm; 31. Main liquid inlet pipe; 321. First branch pipe; 322. Second branch pipe; 323. Third branch pipe; 324. Fourth branch pipe; 33. First liquid inlet pipe; 34. Second liquid inlet pipe; 35. Junction pipe; 36. Liquid outlet pipe; 41. Dry powder feed pipe; 42. Dry powder discharge pipe; 5. First rotary joint; 6. Second rotary joint; 7. Three-phase jet fire monitor; 8. Hollow shaft; 9. Support frame. DETAILED DESCRIPTION
[0024] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.
[0025] See also Figure 1-Figure 7 A large-flow three-phase jet lifting fire truck arm frame includes: a first support arm 1, the first support arm 1 is rotatably set on the fire truck, the front end of the first support arm 1 is rotatably set with a second support arm 2 through a hollow shaft 8, one end of the hollow shaft 8 is fixedly connected to the first support arm 1, and the second support arm 2 is rotatably set on the hollow shaft 8 to achieve the rotation of the second support arm 2 relative to the first support arm 1. A main liquid inlet pipe 31 is set below the first support arm 1, and the water and foam mixing device on the fire truck is connected to the main liquid inlet pipe 31. The water and foam mixing device is the main inlet The liquid pipe 31 provides sufficient water and foam mixture. The main liquid inlet pipe 31 is connected to the first branch pipe 321, the second branch pipe 322, the third branch pipe 323, and the fourth branch pipe 324. The first branch pipe 321 and the second branch pipe 322 converge to connect to the first liquid inlet pipe 33, and the third branch pipe 323 and the fourth branch pipe 324 converge to connect to the second liquid inlet pipe 34. The first liquid inlet pipe 33 and the second liquid inlet pipe 34 are arranged along both sides of the first support arm 1 and converge to connect to the confluence pipe 35 at the end of the first support arm 1. The confluence pipe 35 is connected to the liquid outlet pipe 36 through the first rotary joint 5.
[0026] Specifically, the utility model divides the main liquid inlet pipe 31 for conveying the water and foam mixture into four parts: a first branch pipe 321, a second branch pipe 322, a third branch pipe 323, and a fourth branch pipe 324. The first branch pipe 321 and the second branch pipe 322 form the first liquid inlet pipe 33, the third branch pipe 323 and the fourth branch pipe 324 form the second liquid inlet pipe 34, and finally the first liquid inlet pipe 33 and the second liquid inlet pipe 34 are gathered in the converging pipe 35, so that the water and foam mixture collide and converge multiple times in the liquid inlet pipe, so that the water and foam are further mixed. While greatly improving the jet flow rate of the fire truck, it can ensure that the water and foam are mixed evenly, thereby improving the fire extinguishing efficiency.
[0027] Furthermore, the first rotary joint 5 is located in the hollow shaft 8 , one end of the first rotary joint 5 is fixedly connected to the merging pipe 35 , and the other end of the first rotary joint 5 is fixedly connected to the liquid outlet pipe 36 .
[0028] Specifically, the first rotary joint 5 is located in the hollow shaft 8 and is arranged coaxially with the hollow shaft 8. When the second support arm 2 rotates on the hollow shaft 8, Figure 2 and Figure 6 Under the action of the first rotary joint 5, the liquid outlet pipe 36 rotates relative to the confluence pipe 35. The first rotary joint 5 is an existing commercially available product.
[0029] Furthermore, a dry powder feed pipe 41 is provided on one side of the first support arm 1 , and the dry powder feed pipe 41 is connected to a dry powder discharge pipe 42 at the front end of the first support arm 1 through a second rotary joint 6 , and the dry powder discharge pipe 42 is arranged along the second support arm 2 .
[0030] Specifically, refer to Figure 2 and Figure 7 The dry powder feeding pipe 41 is divided into two sections. The front section is arranged along the first support arm 1 and is fixedly installed on the side of the first support arm 1 through a bracket. The front section and the rear section are arranged vertically, and the rear section is located at the end of the first support arm 1 and the second support arm 2. The rear section of the dry powder feeding pipe 41 is fixedly connected to one end of the second rotary joint 6.
[0031] Furthermore, the liquid outlet pipe 36 is arranged on the side of the second support arm 2 , and the liquid outlet pipe 36 and the dry powder discharge pipe 42 are merged in the three-phase jet fire monitor 7 .
[0032] Specifically, refer to Figure 2 The liquid outlet pipe 36 is fixedly installed on the side of the second support arm 2 through a bracket. The liquid outlet pipe 36 and the dry powder discharge pipe 42 are fixedly connected to the three-phase jet fire monitor 7. In the three-phase jet fire monitor 7, water, foam mixture and dry powder are sprayed out at the same time to achieve three-phase fire extinguishing.
[0033] Furthermore, a support frame 9 is fixedly connected to both sides of the first support arm 1 , and the first branch pipe 321 , the second branch pipe 322 , the dry powder feed pipe 41 , the third branch pipe 323 , and the fourth branch pipe 324 are all mounted on the support frame 9 .
[0034] Specifically, refer to Figure 4 The first branch pipe 321, the second branch pipe 322, the third branch pipe 323, and the fourth branch pipe 324 are all hoses. At the same time, the section connecting the dry powder feed pipe 41 and the dry powder storage mechanism on the fire truck is also a hose, and they are all mounted on the support frame 9, which supports the five.
[0035] Furthermore, the dry powder discharge pipe 42 is divided into two sections, the front section is fixedly connected to one end of the second rotary joint 6 and is a hose, and the rear section is fixedly connected to the three-phase jet fire monitor 7.
[0036] Specifically, refer to Figure 2 Since the first rotary joint 5 and the hollow shaft 8 are coaxially arranged, when the arm is raised, the second support arm 2 rotates relative to the first support arm 1, and the liquid outlet pipe 36 can rotate relative to the confluence pipe 35. However, the second rotary joint 6 is not coaxially arranged with the hollow shaft 8. When the second support arm 2 rotates relative to the first support arm 1, motion interference will occur. In order to solve this motion interference problem, the front section of the dry powder discharge pipe 42 fixedly connected to the second rotary joint 6 is set to a hose, and the deformable characteristics of the hose are used to overcome the motion interference, so that under the action of the second rotary joint 6, the dry powder discharge pipe 42 can rotate relative to the dry powder feed pipe 41, thereby completing the three-phase jet of the fire truck.
[0037] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A high-flow three-phase jet lift fire truck boom, comprising: The first support arm (1) is characterized in that: the first support arm (1) is rotatably arranged on the fire truck; the front end of the first support arm (1) is rotatably provided with a second support arm (2) through a hollow shaft (8); a main liquid inlet pipe (31) is provided below the first support arm (1); the main liquid inlet pipe (31) is connected with a first branch pipe (321), a second branch pipe (322), a third branch pipe (323), and a fourth branch pipe (324); the first branch pipe (321) and the second branch pipe (322) are converged and connected to the first liquid inlet pipe (33); the third branch pipe (323) and the fourth branch pipe (324) are converged and connected to the second liquid inlet pipe (34); the first liquid inlet pipe (33) and the second liquid inlet pipe (34) are arranged along both sides of the first support arm (1) and converged and connected to a merging pipe (35) at the end of the first support arm (1); the merging pipe (35) is connected to the liquid outlet pipe (36) through a first rotary joint (5).
2. The large flow three-phase jet lifting fire truck boom according to claim 1 is characterized in that: The first rotary joint (5) is located inside the hollow shaft (8), one end of the first rotary joint (5) is fixedly connected to the merging pipe (35), and the other end of the first rotary joint (5) is fixedly connected to the liquid outlet pipe (36).
3. The large flow three-phase jet lifting fire truck boom according to claim 2 is characterized in that: A dry powder feed pipe (41) is provided on one side of the first support arm (1), and the dry powder feed pipe (41) is connected to a dry powder discharge pipe (42) at the front end of the first support arm (1) through a second rotary joint (6), and the dry powder discharge pipe (42) is arranged along the second support arm (2).
4. The large flow three-phase jet lifting fire truck boom according to claim 3 is characterized in that: The liquid outlet pipe (36) is arranged on the side of the second support arm (2), and the liquid outlet pipe (36) and the dry powder discharge pipe (42) are combined in the three-phase jet fire monitor (7).
5. The large flow three-phase jet lifting fire truck boom according to claim 1, characterized in that: A support frame (9) is fixedly connected to both sides of the first support arm (1), and the first branch pipe (321), the second branch pipe (322), the dry powder feed pipe (41), the third branch pipe (323), and the fourth branch pipe (324) are all mounted on the support frame (9).
6. The large flow three-phase jet lifting fire truck boom according to claim 3, characterized in that: The dry powder discharge pipe (42) is divided into two sections, the front section is fixedly connected to one end of the second rotary joint (6) and is a hose, and the rear section is fixedly connected to the three-phase jet fire monitor (7).