Anti-suction and anti-vortex fire fighting truck tank structure and fire fighting truck
By using a sunken bus basin, obliquely bent water suction pipe and anti-vortex parts in the fire truck tank body, the problem of vortex generated during the water absorption process is solved, and efficient water flow improvement and water absorption performance are achieved.
Patent Information
- Application Number
- CN202421771225.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-25
AI Technical Summary
The existing fire truck tank body is prone to vortex during the water absorption process, causing the pump to vibrate and even cause mechanical damage, affecting the fire extinguishing effect, and the water absorption volume utilization rate is low.
The sinking bus basin and obliquely bent water suction pipe are adopted, combined with cross-type anti-vortex parts and dense orifice plates, to form an anti-air-absorbing anti-vortex fire truck tank structure to improve the water flow direction and reduce vortex turbulence.
Effectively eliminate vortex, improve water flow, improve water absorption performance, ensure that the fire pump can absorb water normally at low water levels, improve fire extinguishing effect, and achieve a water absorption capacity of 100% of the tank design volume.
Smart Images
Figure CN222900070U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a tank structure of a fire truck for preventing air suction and vortex, belonging to the technical field of fire trucks. Background Art
[0002] As a key component of the fire truck's fire fighting system, the fire truck tank plays a crucial role in fire fighting operations. Whether operating independently or in relay during fire fighting, the water absorption performance seriously affects the fire fighting effect. When the water level in the tank drops, conventional fire truck tanks are prone to generating large vortices at the water suction port, allowing air to enter, causing the pump to cavitate and vibrate, and even posing a risk of mechanical damage, thus aborting the fire fighting operation. Therefore, a more reasonable water absorption device tank structure is the key to the fire fighting performance of fire trucks.
[0003] In existing designs, fire trucks generally have the Figure 1 and Figure 2 shown structural forms.
[0004] Figure 1 For the upward-turning water suction elbow facing downwards, it includes a box body 1, a bottom bracket 2, a water suction elbow pipe 3, and a liquid discharge pipe 4. Such an arrangement must leave a water suction gap 5, resulting in an inevitable reduction in the utilization rate of the water suction volume. When starting the pump, affected by the water level in the tank, when the water level is lower than the upper high point of the elbow, the water cannot fill the water suction pipeline, causing the pump to be unable to suck water. Moreover, this scheme cannot avoid vortices, and water suction vortices will be generated around the water suction port, allowing air to enter when the water level is low.
[0005] Figure 2 The type is direct downward water suction, including a box body 10, a bottom bracket 20, a direct water suction port 30, and a liquid discharge pipe 40. In this scheme, the start of the pump is not affected by the water level, but vortices will be generated during water suction, allowing air to enter at low water levels and affecting the fire fighting performance, and the actual utilization rate of the water suction volume is relatively low.
[0006] In the existing technologies, there are the following technical deficiencies:
[0007] 1. For the upward-turning water suction elbow facing downwards, such an arrangement must leave a water suction gap, resulting in an inevitable reduction in the utilization rate of the water suction volume. When the water level is lower than the upper high point of the elbow, the water cannot fill the water suction pipeline, causing the pump to be unable to suck water. Moreover, this scheme cannot avoid vortices, and water suction vortices will be generated around the water suction port, allowing air to enter when the water level is low.
[0008] 2. The water suction is arranged for direct downward suction at the lower part of the tank. When the pump sucks water, vortices will be generated in the tank, allowing air to enter at low water levels and affecting the fire fighting performance, and the actual utilization rate of the water suction volume is relatively low.
[0009] 3. When the layout space of the entire fire truck is small and the tank is long and flat, the disadvantages of the above schemes are even more prominent. Summary of the Invention
[0010] In view of the deficiencies of the prior art, the present utility model provides a fire truck tank structure for preventing air suction and vortex, which can eliminate vortices, improve water flow, and enhance the water absorption performance.
[0011] The present utility model is implemented according to the following technical solutions:
[0012] In a first aspect, the present utility model provides a fire truck tank structure for preventing air suction and vortex, comprising:
[0013] A box body for storing fire extinguishing liquid;
[0014] An air suction and vortex prevention water suction device, including a sunken confluence basin, a water suction pipe, and a vortex prevention component. The sunken confluence basin is arranged at the bottom of the box body; one end of the water suction pipe is communicated with the sunken confluence basin, and the other end extends outward below the sunken confluence basin; the vortex prevention component is installed at the connection between the water suction pipe and the sunken confluence basin to reduce the vortex turbulence of water.
[0015] In some embodiments, the water suction pipe is a bent pipe, which is bent obliquely downward in an arc from the sunken confluence basin and then extends horizontally outward. A flange protruding outward is fixed at the free port of the water suction pipe for connection with a fire pump through a connecting pipe.
[0016] In some embodiments, a drain pipe communicated with it is fixed at the lowest point of the water suction pipe.
[0017] In some embodiments, the vortex prevention component is composed of at least two intersecting perforated plates; the vortex prevention component is located in the sunken confluence basin and is welded to the port of the water suction pipe.
[0018] In some embodiments, the vortex prevention component is composed of two perpendicularly intersecting perforated plates, and the intersection point of the vortex prevention component is coaxially arranged with the center of the port of the water suction pipe.
[0019] In some embodiments, the sunken confluence basin is composed of a sunken part and a horizontal part. The cross-section of the sunken part is a structure that is wider at the top and narrower at the bottom. The horizontal part is lower than the bottom plate of the box body, and the water suction pipe is fixed at the sunken part.
[0020] In some embodiments, the sunken confluence basin is provided with a perforated plate for completely covering it, and the total flow area of the holes on the perforated plate reaches 1.5 to 4 times or more of the area of the port of the water suction pipe.
[0021] In some embodiments, the four peripheral edges of the sunken confluence basin are welded to the bottom plate of the box body. The four peripheral edges of the perforated plate are welded to the sunken confluence basin, and the perforated plate is flush with the bottom plate of the box body.
[0022] In a second aspect, the present utility model provides a fire truck, which includes the anti-air suction and anti-whirlpool fire truck tank structure described above.
[0023] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0024] The technical solution of the present utility model lies in combining the structural characteristics of the tank body itself to make a sunken water suction and confluence basin. The distribution area of the entire basin is not affected by the anti-slosh baffle in the tank, and it can be arranged in one compartment, or it can occupy one or two compartments or even span the entire water tank, increasing the water confluence trend in the tank; the water suction is improved to be inclined downward and sideward to improve the water flow direction; a perforated plate is arranged on the upper part of the entire basin to increase the water suction flow area and eliminate whirlpools; a cross anti-whirlpool component is added at the water suction port to further eliminate whirlpools, improve the water flow, and enhance the water suction performance; the effective water suction volume can reach 100% of the designed volume of the tank body. Description of the Drawings
[0025] The drawings, as a part of the present utility model, are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model, but do not constitute an improper limitation to the present utility model. Obviously, the drawings described below are only some embodiments, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.
[0026] In the drawings:
[0027] Figure 1 is a schematic diagram of the upper water suction type tank structure of the prior art;
[0028] Reference signs in the drawings: 1, box body; 2, bottom bracket; 3, water suction elbow; 4, liquid discharge pipe; 5, water suction gap.
[0029] Figure 2 is a schematic diagram of the lower direct water suction type tank structure of the prior art;
[0030] Reference signs in the drawings: 10, box body; 20, bottom bracket; 30, direct water suction port; 40, liquid discharge pipe.
[0031] Figure 3 is a schematic diagram of the anti-air suction and anti-whirlpool fire truck tank structure of the present utility model;
[0032] Reference signs in the drawings: 100, box body; 200, bottom bracket; 300, anti-air suction and anti-whirlpool water suction device; 400, water discharge pipe.
[0033] Figure 4 is a partial view of the anti-air suction and anti-whirlpool fire truck tank structure of the present utility model;
[0034] Reference numerals: 301, suction pipe; 302, anti-whirl component; 303, sunken confluence basin; 304, perforated plate.
[0035] Figure 5 Isometric view of the anti-air suction and anti-whirl suction device of the present utility model;
[0036] Figure 6 Schematic diagram of the anti-whirl component of the present utility model;
[0037] Figure 7 Schematic diagram of the perforated plate of the present utility model.
[0038] It should be noted that these drawings and textual descriptions are not intended to limit the scope of the concept of the present utility model in any way, but rather to illustrate the concept of the present utility model to those skilled in the art by reference to specific embodiments. Detailed implementation manners
[0039] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model but are not used to limit the scope of the present utility model.
[0040] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.
[0041] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" 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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0042] Such as Figure 3 、 Figure 4 、 Figure 5As shown in the figure, an anti-air suction and anti-whirlpool fire truck tank structure includes a box body 100 and an anti-air suction and anti-whirlpool water suction device 300; the box body 100 is used for storing fire extinguishing liquid, and a bottom support frame 200 is provided on the bottom plate of the box body 100; the anti-air suction and anti-whirlpool water suction device 300 includes a sunken confluence basin 303, a water suction pipe 301 and an anti-whirlpool component 302; the sunken confluence basin 303 is arranged at the bottom of the box body 100; one end of the water suction pipe 301 is communicated with the sunken confluence basin 303, and the other end extends outward from the box body 100 in a manner lower than the sunken confluence basin 303; the anti-whirlpool component 302 is installed at the connection of the water suction pipe 301 and the sunken confluence basin 303 for reducing the vortex turbulence of water.
[0043] As can be seen from the above, by improving the tank structure, adopting sunken water suction, increasing the depth between the water suction port and the liquid level, and weakening the air suction tendency. An anti-whirlpool component is added at the port of the water suction pipe to further reduce the vortex turbulence of water and reduce energy loss.
[0044] The following further describes the above water suction pipe.
[0045] As Figure 3 、 Figure 4 shown, the water suction pipe 301 is a bent pipe, which starts from the sunken confluence basin 303, bends obliquely downward in an arc and then extends horizontally outward. A flange protruding outward is fixed at the free port of the water suction pipe 301 for connecting to a fire pump through a connecting pipe.
[0046] As can be seen from the above, changing the downward water suction method to obliquely downward, considering the overall confluence trend in the tank and improving the water flow direction.
[0047] A further solution is, as Figure 3 shown, a drain pipe 400 communicating with it is fixed at the lowest point of the water suction pipe 301.
[0048] The following further describes the above anti-whirlpool component.
[0049] As Figure 3 、 Figure 4 、 Figure 5 shown, the anti-whirlpool component 302 is composed of at least two intersecting perforated plates; the anti-whirlpool component 302 is located in the sunken confluence basin 303 and is welded to the port of the water suction pipe 301.
[0050] A further solution is, as Figure 6 shown, the anti-whirlpool component 302 is composed of two perpendicularly intersecting perforated plates, and the intersection point of the anti-whirlpool component 302 is coaxially arranged with the center of the port of the water suction pipe 301.
[0051] It should be noted that the anti-vortex component is not limited to the cross-shaped anti-vortex component described above, and any structure that can further reduce the vortex turbulence of water can be used.
[0052] The following further explains the above-mentioned sunken confluence basin.
[0053] As Figure 3 , Figure 4 shown, the sunken confluence basin 303 is composed of a sunken part and a horizontal part. The cross-section of the sunken part is a structure that is wider at the top and narrower at the bottom. The horizontal part is lower than the bottom plate of the box body 100, and the water suction pipe 301 is fixed at the sunken part.
[0054] In a further solution, as Figure 3 , Figure 4 , Figure 5 , Figure 7 shown, a perforated plate 304 for completely covering the sunken confluence basin 303 is provided on the sunken confluence basin 303, and the total hole flow-through area on the perforated plate 304 reaches 1.5 to 4 times or more of the port area of the water suction pipe 301, increasing the flow-through efficiency.
[0055] As can be seen from the above, the combination of the water suction pipe 301 and the perforated plate 304 causes the large vortex that might originally occur to be decomposed into numerous small-hole water flows after the water level drops when the fire pump sucks water, eliminating the vortex and preventing air flow from entering.
[0056] In a further solution, as Figure 3 , Figure 4 , Figure 5 shown, the four peripheral edges of the sunken confluence basin 303 are welded to the bottom plate of the box body 100, the four peripheral edges of the perforated plate 304 are welded to the sunken confluence basin 303, and the perforated plate 304 is flush with the bottom plate of the box body 100.
[0057] The following gives the installation process and usage process of the above anti-air-suction and anti-vortex water suction device:
[0058] At the bottom of the tank body, a sunken confluence basin 303 is adopted, which is covered with a perforated plate 304. The water suction pipe 301 is welded to the sunken confluence basin 303, and the water suction pipe 301 is an elbow pipe inclined downward. The flange on it is connected to the fire pump through a connecting pipe. The sunken confluence basin 303 can cover the entire water storage tank, enabling the water in the water storage tank to flow smoothly into the sunken confluence basin 303 to the greatest extent. At the port of the water suction pipe 301, a vortex prevention component 302 that does not obstruct the water flow and has a guiding effect is provided. A perforated plate 304 is arranged on the sunken confluence basin 303, so that the total pore flow area reaches 1.5 to 4 times or more of the area of the water suction pipe port, increasing the flow efficiency. The combination of the water suction pipe 301 and the perforated plate 304 enables, when the fire pump sucks water and the water level drops, the large vortex that might originally occur to be decomposed into numerous small-hole water flows, eliminating the vortex and preventing air flow from entering. The effective water suction volume can reach 100% of the designed volume of the tank body, greatly improving the fire extinguishing performance of fire fighting operations.
[0059] In summary, the present utility model realizes the following functions:
[0060] 1. By improving the tank body structure and adopting sunken water suction, the depth between the water suction pipe and the liquid surface is increased, and the tendency of air suction is weakened.
[0061] 2. The area of the sunken confluence basin is not affected by the anti-sway partition in the tank. It can be arranged in one compartment, or can occupy one or two compartments or even span the entire water storage tank, increasing the water confluence tendency in the tank.
[0062] 3. The sunken confluence basin is covered with a perforated plate, so that the total pore flow area reaches 1.5 to 4 times or more of the area of the water suction pipe port, which can not only filter impurities in the water but also increase the effective flow area and improve the water suction efficiency.
[0063] 4. A cross-flow guiding anti-vortex component is added at the port of the water suction pipe, further reducing the vortex turbulence of water and reducing energy loss.
[0064] 5. The combination of the water suction pipe and the perforated plate enables, when the fire pump sucks water and the water level drops, the large vortex that might originally occur to be decomposed into numerous small-hole water flows, eliminating the vortex and preventing air flow from entering.
[0065] 6. The downward water suction method is changed to inclined downward, and considering the overall water confluence tendency in the tank, the water flow direction is improved.
[0066] 7. The effective water suction volume can reach 100% of the designed volume of the tank body.
[0067] The fire truck provided by the present utility model is described below. The fire truck described below can be mutually corresponding and referred to with the tank body structure of the anti-air-suction and anti-vortex fire truck described above.
[0068] A fire truck provided by the present utility model may include the anti-air suction and anti-whirlpool fire truck tank structure as described in any one of the above embodiments.
[0069] The beneficial effects achieved by the fire truck provided by the present utility model are consistent with those achieved by the anti-air suction and anti-whirlpool fire truck tank structure provided by the present utility model, so they will not be elaborated here.
[0070] In the specification provided here, a large number of specific details are described. However, it can be understood that the embodiments of the present utility model can be practiced without these specific details. In some instances, well-known methods, structures, and technologies are not shown in detail so as not to obscure the understanding of this specification.
[0071] In addition, those skilled in the art can understand that although some of the embodiments described herein include certain features contained in other embodiments rather than other features, the combination of the features of different embodiments also means that it is within the protection scope of the present utility model and forms different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved by this application.
[0072] The above description is only a preferred embodiment of the present utility model and does not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art of this patent, without departing from the scope of the technical solution of the present utility model, can make some changes or modifications using the technical content prompted above into equivalent embodiments of equivalent changes. However, as long as it does not depart from the content of the technical solution of the present utility model, any simple modification, equivalent change, and modification made to the above embodiments according to the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.
Claims
1. A tank structure for an anti-vacuum and anti-vortex fire truck, characterized in that: include: A box for storing fire extinguishing liquid; The anti-air suction and anti-vortex water suction device comprises: A sunken drainage basin is arranged at the bottom of the box; A water suction pipe, one end of which is connected to the sunken drainage basin, and the other end of which extends toward the outside of the box body in a manner lower than the sunken drainage basin; The anti-vortex component is installed at the connection between the water suction pipe and the sunken confluence basin, and is used to reduce the vortex turbulence of water.
2. The anti-vacuum and anti-vortex fire truck tank structure according to claim 1, characterized in that: The water suction pipe is a curved pipe, which starts from the sunken drainage basin and bends obliquely downward in an arc shape and then extends horizontally to the outside. A flange protruding outward is fixed at the free end of the water suction pipe for connecting to a fire pump through a connecting pipe.
3. The anti-vacuum and anti-vortex fire truck tank structure according to claim 1, characterized in that: A water discharge pipe connected with the water suction pipe is fixed at the lowest point of the water suction pipe.
4. The anti-vacuum and anti-vortex fire truck tank structure according to claim 1, characterized in that: The anti-vortex component is composed of at least two intersecting porous plates; The anti-vortex component is located in the sunken confluence basin and is welded to the port of the water suction pipe.
5. The anti-vacuum and anti-vortex fire truck tank structure according to claim 4, characterized in that: The anti-vortex component is composed of two porous plates that are perpendicularly crossed, and the intersection of the anti-vortex component is coaxially arranged with the center of the port of the water suction pipe.
6. The anti-vacuum and anti-vortex fire truck tank structure according to claim 1, characterized in that: The sunken drainage basin is composed of a sunken part and a horizontal part. The cross section of the sunken part is a structure that is wide at the top and narrow at the bottom. The horizontal part is lower than the bottom plate of the box body. The water suction pipe is fixed at the sunken part.
7. The anti-vacuum and anti-vortex fire truck tank structure according to claim 1, characterized in that: The sunken confluence basin is provided with a dense-hole plate for completely covering the basin, and the total hole flow area on the dense-hole plate is more than 1.5 to 4 times the port area of the water suction pipe.
8. The anti-vacuum and anti-vortex fire truck tank structure according to claim 7, characterized in that: The four edges of the sunken confluence basin are welded to the bottom plate of the box body, the four edges of the dense-pore plate are welded to the sunken confluence basin, and the dense-pore plate is flush with the bottom plate of the box body.
9. A fire truck, characterized in that: The invention comprises the tank structure of the anti-air suction and anti-vortex fire truck according to any one of claims 1 to 8.