Fire-fighting system for modifying existing building fire-fighting equipment

Abstract

The utility model discloses a fire-fighting system for improving existing building fire-fighting equipment, which comprises a production fire-fighting pool and a high-level water tank, and the water supply end of the production fire-fighting pool is communicated with a first fire-fighting pump and a second fire-fighting pump through a fire-fighting pipeline; the other sides of the first fire pump and the second fire pump are communicated with a water supply pipe through a first outlet pipe; the water supply pipe comprises a first water supply pipe and a second water supply pipe, the first water supply pipe is communicated with the high-level water tank, the second water supply pipe is communicated with a workshop, the backwater end of the production fire pool is communicated with the water supply pipe through a fire-fighting pressure relief pipeline, and a pressure reducing valve is installed on the fire-fighting pressure relief pipeline. The utility model aims to provide a fire-fighting system for modifying existing building fire-fighting equipment, so that the existing fire-fighting standard requirements are met, the redundancy of a fire-fighting water pump is ensured, and the difficulty and the cost of fire-fighting modification are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fire fighting, and in particular to a fire fighting system for existing building fire fighting facility reconstruction. BACKGROUND

[0002] At present, the fire fighting design of many old buildings does not conform to the current specification, resulting in imperfect fire fighting facilities, inadequate management, and long-term lack of maintenance. Secondly, these buildings may lack automatic alarm, fire hydrant, sprinkler, fresh air, smoke exhaust and other systems required by modern fire fighting specifications, or these systems have faults and are imperfect. In addition, the safety facilities such as evacuation passage and fire separation often do not conform to the modern fire fighting specifications. In addition, the old buildings may have aging problems of electrical lines, increasing the risk of fire. Finally, due to the long history of the building, there may be insufficient compatibility of fire fighting electronic products, increasing the difficulty of maintenance, and the property service enterprise cannot effectively supervise the maintenance agency, resulting in poor condition of fire fighting facilities.

[0003] The utility model discloses a kind of energy-saving fire fighting water supply systems of consumption, including fire fighting pool, high fire fighting water tank, fire fighting water pump, control cabinet, wet type alarm valve group, alarm controller, water flow indicator, water distribution main pipe, water distribution pipe and closed sprinkler head, wherein the rated working flow of fire fighting water pump is 30L / S, rated pressure is 1.35MPa, motor power is 75KW.The utility model, for the difference of high-low fire fighting system of high flow low lift, small flow high lift, in combination with the operating characteristics of fire fighting pump, select the water supply pump of suitable safety, so that the working pressure of entire water supply system is optimized, reduce the pressure rating of pipe material and valve fittings etc., reduce energy consumption, achieve the purpose of energy saving.

[0004] But in the field of building fire fighting, the existing building because of historical reasons and the imperfection of old fire fighting specifications, fire fighting system uses municipal pipe network to supply outdoor fire hydrant, fire fighting pool and high water tank to supply indoor fire hydrant, uses 2 fire fighting water pumps (one for one), meets the design flow and velocity requirement of all use fire fighting facilities.When local reconstruction increases fire fighting monitor system in factory area building, in order to meet the flow and pressure requirement in current fire fighting specification, often need to add fire fighting pool, fire fighting water pump and supporting fire fighting pipe network, but because of factory area and building area limit, cannot add fire fighting pool and multiple fire fighting water pumps, and the scope of newly added fire fighting pool is wide, excavation amount is big, construction influence is big, so reconstruction is difficult. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art in the background art, the utility model discloses a fire-fighting system for existing building fire-fighting facility reconstruction, meets the existing fire-fighting specification requirement, guarantees the redundancy of fire-fighting water pump, and reduces the difficulty and cost of fire-fighting reconstruction.

[0006] In order to realize the above-mentioned purpose, the technical scheme of the utility model is:

[0007] A fire-fighting system for existing building fire-fighting facility reconstruction, including production fire-fighting pool and high water tank, the water supply end of production fire-fighting pool is communicated with first fire-fighting pump and second fire-fighting pump through fire-fighting pipeline respectively, and the other side of first fire-fighting pump and second fire-fighting pump is communicated with first water outlet pipe and second water outlet pipe respectively, and first water outlet pipe and second water outlet pipe are communicated with water supply pipe,

[0008] The water supply pipe is communicated with workshop, high water pipe is connected on water supply pipe, high water pipe is communicated with high water tank, the water return end of production fire-fighting pool is communicated with fire-fighting pressure relief pipeline, the other end of fire-fighting pressure relief pipeline is communicated with water supply pipe, pressure relief valve is installed on fire-fighting pressure relief pipeline, and the fire-fighting pipeline of water supply end of production fire-fighting pool is communicated with fire-fighting monitor system through distribution pipe.

[0009] As a further scheme of the utility model, first butterfly valve is installed on first water outlet pipe, and second butterfly valve is installed on second water outlet pipe.

[0010] As a further scheme of the utility model, third butterfly valve is installed on high water pipe.

[0011] As a further scheme of the utility model, electric contact pressure gauge is installed on water supply pipe.

[0012] As a further scheme of the utility model, the fire-fighting monitor system includes new fire-fighting pump, fire-fighting control cabinet, fire-fighting monitor and pressure switch, and the fire-fighting pipeline of water supply end of production fire-fighting pool is communicated with distribution pipe, the inlet of distribution pipe is located on fire-fighting pipeline, and distribution pipe is communicated with fire-fighting monitor.

[0013] As a further scheme of the utility model, new fire-fighting pump, fifth butterfly valve and pressure switch are installed on distribution pipe in sequence.

[0014] As a further scheme of the utility model, electric contact pressure gauge and pressure switch are electrically connected with fire-fighting control cabinet.

[0015] As a further scheme of the utility model, pipe network is communicated between fire-fighting pressure relief pipeline and distribution pipe, and fourth butterfly valve is installed on pipe network.

[0016] Compared with the prior art, the utility model discloses the beneficial effect that

[0017] (1) the utility model discloses the opening state of adjusting multiple butterfly valves can ensure that the fire water cannon system has the condition of fire pump dual -purpose one spare, satisfies the fire flow and pressure, and does not cause all pumps to start simultaneously, and the flow is too big, greatly increases the pipe network flow rate and use load and leads to the fire pipe of fire when the fire pipe explosion, and the fire system can satisfy the flow and pressure requirement required when the fire is extinguished under any condition, and one fire pump is as spare, compares with general fire design simultaneously, has reduced the reform difficulty and cost. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the whole structure schematic diagram of the utility model;

[0019] In the drawing: 1 - first fire pump;2 - second fire pump;3 - new fire pump;4 - pressure reducing valve;5 - first butterfly valve;6 - second butterfly valve;7 - fifth butterfly valve;8 - fourth butterfly valve;9 - third butterfly valve;10 - electric contact pressure gauge;11 - pressure switch. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0021] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the features limited as "first", "second" can be explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0022] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, term "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can through intermediate medium indirectly connect, can be two element inside intercommunication. For ordinary skilled person in the art, the above-mentioned term can be understood in the specific meaning in the utility model according to specific circumstances.

[0023] Please refer to the attached Figure 1 A kind of fire-fighting system for existing building fire-fighting facilities reconstruction, including production fire pool and high water tank, the water supply end of the production fire pool is communicated with first fire pump 1 and second fire pump 2 respectively by fire pipeline, the other side of the first fire pump 1 and second fire pump 2 is communicated with first water outlet pipe and second water outlet pipe respectively, the first water outlet pipe and second water outlet pipe are communicated with water supply pipe;

[0024] The water supply pipe is communicated with workshop, high water pipe is connected on the water supply pipe, the high water pipe is communicated with high water tank, the water return end of the production fire pool is communicated with fire relief pipeline, the other end of the fire relief pipeline is communicated with water supply pipe, pressure reducing valve 4 is installed on the fire relief pipeline, the fire pipeline of the water supply end of the production fire pool is communicated with fire monitor system by distribution pipe.

[0025] First butterfly valve 5 is installed on the first water outlet pipe, second butterfly valve 6 is installed on the second water outlet pipe, third butterfly valve 9 is installed on the high water pipe, electric contact pressure gauge 10 is installed on the water supply pipe.

[0026] The required flow of the present reconstruction building according to current fire-fighting specification is 30L / s indoor, 20L / s monitor, so the fire pool and water pump need to increase flow.

[0027] The fire monitor system includes new fire pump 3, fire control cabinet, fire monitor and pressure switch 11, the fire pipeline of the water supply end of the production fire pool is communicated with distribution pipe, the inlet of the distribution pipe is located on the fire pipeline, the distribution pipe is communicated with fire monitor.

[0028] New fire pump 3, fifth butterfly valve 7 and pressure switch 11 are installed on the distribution pipe in sequence, electric contact pressure gauge 10 and pressure switch 11 are electrically connected with fire control cabinet.Workshop fire alarm signal is connected to fire control cabinet by electric signal.Electric contact pressure gauge 10 and pressure switch 11 can detect the actual water pressure in the pipeline, can control the start and stop of fire pump, so as to ensure pressure and flow.

[0029] The fire-fighting pressure relief pipe and the water distribution pipe are communicated through a pipe network, and a fourth butterfly valve 8 is installed on the pipe network.

[0030] The utility model only needs to increase the fire water monitor system, including the new fire pump 3, increase the fifth butterfly valve 7, the fourth butterfly valve 8, increase the pressure switch 11, pass through the electric signal access new fire pump control cabinet.

[0031] The working principle of the utility model is:

[0032] The fire-fighting system is maintained by high-level water tank and other equipment in normal times, the third butterfly valve 9 keeps the normal open state, the fire-fighting pump system keeps the standby state, the first butterfly valve 5, the second butterfly valve 6 and the fifth butterfly valve 7 keep the open state, and the fourth butterfly valve 8 keeps the closed state.

[0033] Finally, it needs to be explained that the fire alarm device, fire water tank and other components involved in the utility model are general standard parts or components known to those skilled in the art, and their structure and principle are known to those skilled in the art through technical manual or through conventional experimental method.

[0034] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A fire fighting system for retrofitting existing building fire fighting installations, comprising a production fire fighting tank and a high-level tank, characterized in that, One end of the production fire pool water supply is connected with the first fire pump (1) and the second fire pump (2) through the fire pipe respectively, the other side of the first fire pump (1) and the second fire pump (2) is respectively communicated with the first outlet pipe and the second outlet pipe, the first outlet pipe and the second outlet pipe are communicated with the water supply pipe; The water supply pipe is communicated with the workshop, the water supply pipe is connected with the high water pipe, the high water pipe is communicated with the high water tank, one end of the production fire pool backwater is communicated with the fire relief pipe, the other end of the fire relief pipe is communicated with the water supply pipe, the fire relief pipe is installed with the pressure reducing valve (4), the fire pipe of the production fire pool water supply end is communicated with the fire monitor system through the distribution pipe.

2. The fire protection system for retrofitting an existing building fire protection system of claim 1, wherein, The first outlet pipe is installed with the first butterfly valve (5), the second outlet pipe is installed with the second butterfly valve (6).

3. The fire protection system for retrofitting an existing building fire protection system of claim 1, wherein, The high water pipe is installed with the third butterfly valve (9).

4. The fire protection system for retrofitting an existing building fire protection system of claim 1, wherein, The water supply pipe is installed with the electric contact pressure gauge (10).

5. A fire protection system for retrofitting an existing building fire protection system according to claim 4, wherein, The fire monitor system includes the new fire pump (3), the fire control cabinet, the fire monitor and the pressure switch (11), the fire pipe of the production fire pool water supply end is communicated with the distribution pipe, the inlet of the distribution pipe is located on the fire pipe, the distribution pipe is communicated with the fire monitor.

6. A fire protection system for retrofitting an existing building fire protection system according to claim 5, wherein, The distribution pipe is installed with the new fire pump (3), the fifth butterfly valve (7) and the pressure switch (11) in turn.

7. A fire protection system for retrofitting an existing building fire protection system according to claim 6, wherein, The electric contact pressure gauge (10) and the pressure switch (11) are electrically connected with the fire control cabinet.

8. The fire protection system for retrofitting an existing building fire protection system of claim 5, wherein, The fire relief pipe and the distribution pipe are communicated with the pipe network, the pipe network is installed with the fourth butterfly valve (8).

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