Device for preventing water absorption trumpet-shaped rotational flow of fire pump
By installing stainless steel suction pipes and gate structures in fire water tanks or pools, the problems of vortex and debris suction of fire water pumps are solved, and the normal operation and cost reduction of fire pipes are achieved.
Patent Information
- Application Number
- CN202422409154.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-10-08
AI Technical Summary
Fire water pumps produce vortexes and inhales debris in the fire water tank or pool, causing air to enter the fire piping system and affecting normal operation.
A device is designed to prevent the horn-shaped cyclone of the fire water pump from absorbing water, including stainless steel suction pipes, elbows, short pipes, large and small heads, first and second stainless steel grid strips, which are bolted to the inner wall of the fire water tank to form a rectangular and cylindrical mesh surface to prevent vortex.
Effectively prevent the generation of vortexes when the fire water pump absorbs water, prevent air from entering the pipeline system, ensure the normal operation of the fire pipes, and reduce the cost of equipment investment.
Smart Images
Figure CN223152402U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of fire-fighting water, and particularly relates to a device for preventing the swirling flow of a suction bell of a fire pump. Background Art
[0002] A fire pump refers to a dedicated fire pump or a fire pump that meets the national standard of "Performance Requirements and Test Methods for Fire Pumps" GB6245. Most of the fire-fighting water provided by fire water sources needs to be pressurized by a fire pump to meet the requirements of water pressure and water volume during fire extinguishing.
[0003] The starting end of the water outlet pipe of the fire pump is usually installed in a fire high-level water tank or a fire pool. During fire-fighting water use, vortices and debris may be generated in the fire water tank or the fire pool, resulting in air and debris entering the fire pipeline system and affecting the normal operation of the fire pipeline. Therefore, the present application provides a device for preventing the swirling flow of a suction bell of a fire pump.
[0004] The information disclosed in this background art section is only intended to enhance the understanding of the overall background of the utility model and should not be regarded as an admission or any form of suggestion that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Utility Model
[0005] The purpose of the utility model is to provide a device for preventing the swirling flow of a suction bell of a fire pump to prevent the generation of vortices in the fire pool or the fire water tank during fire-fighting water use and prevent air from entering the fire pipeline system.
[0006] To achieve the above purpose, the utility model provides the following technical solutions:
[0007] A device for preventing the swirling flow of a suction bell of a fire pump, comprising:
[0008] A stainless steel suction pipe, which is horizontally arranged, and a stainless steel elbow is provided at one end thereof facing the fire pool; a stainless steel angle steel is fixedly arranged on the inner wall of the fire pool;
[0009] A stainless steel short pipe, which is vertically arranged, and the top thereof is connected to the stainless steel elbow;
[0010] A stainless steel reducer, the top of which is connected to the bottom of the stainless steel short pipe;
[0011] A first stainless steel grid bar, which is located below the stainless steel reducer, is composed of a plurality of intersecting grid bars to form a rectangular plane and is fixed on the stainless steel angle steel by stainless steel bolts;
[0012] The second stainless - steel grid bars are fixed below the first stainless - steel grid bars and correspond to the position of the stainless - steel reducer; the second stainless - steel grid bars are composed of multiple vertical grid bars and horizontal annular grid bars to form a cylindrical mesh surface.
[0013] Preferably, a stainless - steel flange is provided at the bottom of the stainless - steel elbow, stainless - steel flanges are provided at both ends of the stainless - steel short pipe, and a stainless - steel flange is provided at the small - end of the stainless - steel reducer; two butt - joint stainless - steel flanges are fixedly connected by bolts.
[0014] Preferably, the large - end of the stainless - steel reducer faces downward.
[0015] Preferably, the stainless - steel angle steels on the inner walls around the fire pool are connected to form a rectangular frame, and its bottom is fixed on the inner wall of the fire pool by stainless - steel expansion bolts.
[0016] Compared with the prior art, the utility model has the following beneficial effects: The device for preventing the swirling of the suction bell of the fire pump of the utility model is installed at the starting end of the fire outlet pipe of the fire high - level water tank or the fire pool, which can prevent the generation of vortices in the fire water tank or the fire pool during fire fighting, is beneficial to preventing air from entering the fire pipeline system, and enables the fire pipeline to work properly. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a side view of the utility model;
[0018] Figure 2 is a top view of the utility model;
[0019] Figure 3 is a schematic diagram of the first stainless - steel grid bars and the stainless - steel reducer of the utility model;
[0020] Figure 4 is a schematic diagram of the second stainless - steel grid bars and the stainless - steel angle steels of the utility model;
[0021] MAIN REFERENCE NUMERAL DESCRIPTION:
[0022] 1. Stainless - steel suction pipe; 2. Fire pool; 3. Stainless - steel elbow; 4. Stainless - steel angle steel; 5. Stainless - steel short pipe; 6. Stainless - steel reducer; 7. First stainless - steel grid bars; 8. Stainless - steel bolt; 9. Second stainless - steel grid bars; 10. Stainless - steel flange; 11. Stainless - steel expansion bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0023] The technical solution of the utility model patent will be described clearly and completely below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of them. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the utility model.
[0024] In the description of the present utility model, it should be noted that terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings. It 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, so it cannot be understood as a limitation of the utility model.
[0025] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, terms such as "installation", "connection", 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 an indirect connection through an intermediate medium, and it can be the connection inside two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0026] Referring to the attached Figures 1-4 , a device for preventing the swirling flow of the suction bell of a fire pump is composed of a first stainless steel grid bar 7, a stainless steel expansion bolt 11, a stainless steel bolt 8, a stainless steel angle steel 4, a second stainless steel grid bar 9, a stainless steel reducer 6, a stainless steel flange 10, a stainless steel short pipe 5, a stainless steel elbow 3, a stainless steel suction pipe 1, etc. It has a simple structure, good corrosion resistance, and obvious filtering and anti-swirl effects. Among them,
[0027] The stainless steel suction pipe 1 is horizontally arranged, and the stainless steel elbow 3 is arranged at one end of the stainless steel suction pipe 1 facing the fire pool 2; the stainless steel angle steel 4 is fixedly arranged on the inner wall of the fire pool 2;
[0028] The stainless steel short pipe 5 is vertically arranged, its top is connected to the stainless steel elbow 3, and its bottom is connected to the stainless steel reducer 6; the large end of the stainless steel reducer 6 faces downward;
[0029] The first stainless steel grid bar 7 is located below the stainless steel reducer 6, and is composed of multiple intersecting grid bars to form a rectangular plane and is fixed on the stainless steel angle steel 4 by stainless steel bolts 8;
[0030] The second stainless - steel grid bar 9 is fixed below the first stainless - steel grid bar 7 and corresponds to the position of the stainless - steel reducer 6; the second stainless - steel grid bar 9 consists of multiple vertical grid bars and horizontal annular grid bars to form a cylindrical mesh surface.
[0031] In this embodiment, the stainless - steel water suction pipe 1, the stainless - steel elbow 3 and the stainless - steel short pipe 5 are all made of 316 stainless - steel with a pipe diameter of DN200. The length of the stainless - steel short pipe 5 is 200 mm, and the length of the stainless - steel reducer 6 is 400 mm. The specification sizes of the first stainless - steel grid bar 7 and the second stainless - steel grid bar 9 are D10 mm, and the spacing is 50 mm. The specification size of the stainless - steel angle steel 4 is L120×50 mm, the specification size of the stainless - steel bolt 8 is D10×100 mm, and the specification size of the stainless - steel expansion bolt 11 is D10×100 mm. The bottom of the fire - fighting water tank 2 is a rectangle of 1200×1200 mm, and the height is 1200 mm.
[0032] In addition, a stainless - steel flange 10 is provided at the bottom of the stainless - steel elbow 3, stainless - steel flanges 10 are provided at both ends of the stainless - steel short pipe 5, and a stainless - steel flange 10 is provided at the small - end of the stainless - steel reducer 6; two butt - joint stainless - steel flanges 10 are fixedly connected by bolts. The stainless - steel angle steels 4 on the inner walls around the fire - fighting water tank 2 are connected to form a rectangular frame, and its bottom is fixed on the inner wall of the fire - fighting water tank 2 by stainless - steel expansion bolts 11.
[0033] For the elevated fire - fighting water tank and the fire - fighting water tank 2 without a device to prevent the swirling of the suction bell of the fire - fighting water pump, the lowest effective water level should be above 600 mm from the water outlet of the fire - fighting water tank, that is, the elevated water tank and the fire - fighting water tank 2 have an ineffective calculated water depth of 600 mm. When installing the device to prevent the swirling of the suction bell of the fire - fighting water pump in this embodiment, the suction pipeline does not need to be separately provided with a filter, does not require a submerged water depth of 600 mm for the suction pipeline, and uses two anti - swirling grid bars, which can effectively eliminate the possibility of swirling in the suction pipeline and debris being sucked into the fire - fighting water pump system, increase the effective calculated volume of the fire - fighting water tank and the fire - fighting water tank 2, reduce the volume and weight of the water tank, and is beneficial to reducing the investment cost.
[0034] The device of the present utility model for preventing the swirling of the suction bell of the fire - fighting water pump has a simple structure, good corrosion resistance, obvious filtering and anti - swirling effects. Installed at the starting end of the fire - fighting water outlet pipe of the elevated fire - fighting water tank or the fire - fighting water tank 2, it can prevent the generation of vortices in the fire - fighting water tank 2 or the fire - fighting water tank during fire - fighting water use, is beneficial to preventing air from entering the fire - fighting pipeline system, enables the normal operation of the fire - fighting pipeline, is very practical, and has good market application prospects.
[0035] The foregoing description of the specific exemplary embodiments of the present utility model is for purposes of illustration and exemplification. These descriptions are not intended to limit the present utility model to the precise forms disclosed, and it is obvious that many changes and variations can be made in light of the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present utility model and its practical applications, so that those skilled in the art can implement and utilize the various different exemplary embodiments of the present utility model, as well as various different selections and changes. The scope of the present utility model is intended to be defined by the claims and their equivalents.
Claims
1. A device for preventing the swirling flow of a suction bell of a fire pump, characterized in that, Comprising: A stainless steel water suction pipe, horizontally arranged, with a stainless steel elbow provided at one end facing the fire pool; a stainless steel angle steel is fixedly arranged on the inner wall of the fire pool; A stainless steel short pipe, vertically arranged, with its top connected to the stainless steel elbow; A stainless steel reducer, with its top connected to the bottom of the stainless steel short pipe; The first stainless steel grid bar, located below the stainless steel reducer, consisting of multiple intersecting grid bars to form a rectangular plane and fixed on the stainless steel angle steel by stainless steel bolts; The second stainless steel grid bar, fixed below the first stainless steel grid bar and corresponding to the position of the stainless steel reducer; the second stainless steel grid bar consists of multiple vertical grid bars and horizontal annular grid bars to form a cylindrical mesh surface.
2. The device for preventing swirl in the suction bell of a fire pump according to claim 1, characterized in that, A stainless steel flange is provided at the bottom of the stainless steel elbow, stainless steel flanges are provided at both ends of the stainless steel short pipe, and a stainless steel flange is provided at the small end of the stainless steel reducer; two mutually butting stainless steel flanges are fixedly connected by bolts.
3. The device for preventing the swirling flow of the suction bell of a fire pump according to claim 1, characterized in that, The large end of the stainless steel reducer faces downward.
4. The device for preventing the swirling flow of the suction bell of a fire pump according to claim 1, characterized in that, The stainless steel angle steels on the inner walls around the fire pool are connected to form a rectangular frame, and its bottom is fixed on the inner wall of the fire pool by stainless steel expansion bolts.