Fire water supply system

Abstract

The utility model discloses a fire-fighting water supply system which comprises a fire-fighting network pipe, a fire-fighting water tank, a fire-fighting reservoir and a pressure stabilizing system, the pressure stabilizing system is connected with the fire water tank; the fire-fighting network pipe is provided with two paths, namely a first fire-fighting network pipe and a second fire-fighting network pipe, one end of the first fire-fighting network pipe and one end of the second fire-fighting network pipe are both connected with the fire-fighting reservoir, the other end of the first fire-fighting network pipe is connected with a water spraying fire-fighting system outlet, and the other end of the second fire-fighting network pipe is connected with a fire hydrant fire-fighting system outlet. Fire-fighting pumps, namely a first fire-fighting pump and a second fire-fighting pump, are arranged on the first fire-fighting network pipe and the second fire-fighting network pipe and close to the fire-fighting reservoir, and a first communication path and a second communication path are arranged between the first fire-fighting network pipe and the second fire-fighting network pipe in parallel and used for communicating the two paths of fire-fighting network pipes. According to the utility model, two fire-fighting pumps are used for replacing four conventionally arranged fire-fighting pumps, namely, the two fire-fighting pumps can be used as a water spraying fire-extinguishing system and a fire hydrant fire-extinguishing system.

Description

Technical Field

[0001] The utility model relates to the technical field of fire protection, in particular to a fire protection water supply system for a transformer substation. Background Art

[0002] The fire protection system is a very important protection system, especially in large substations. The substation fire control system plays a very important role in the effective prevention and control of fires and rescue measures in substations. At present, the fire protection system of 220kV and 500kV substations uses two fire pumps for water spray fire extinguishing of the main transformer of the substation, and two fire pumps for fire hydrant fire extinguishing, and the two sets of fire pump control devices are independent of each other.

[0003] The inventor found in the research that the existing substation fire control system is composed of 4 fire pumps that bear the main transformer water sprinkler fire extinguishing system and fire hydrant fire extinguishing system and two sets of fire pump control devices. As a result, the area occupied by the pump room is increased, and the construction cost and subsequent maintenance costs are increased. In order to better meet the current functional requirements of intelligent substation fire control, simplifying the existing substation fire control system without affecting the system function, and improving and optimizing the system function are technical problems that need to be continuously solved in this field. Utility Model Content

[0004] The utility model provides a fire water supply system, which uses two fire pumps to replace four conventional fire pumps, that is, the utility model uses two fire pumps to bear the water sprinkler fire extinguishing system and the fire hydrant fire extinguishing system.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A fire water supply system, comprising: a fire network management, a fire water tank, a fire water reservoir, and a pressure stabilizing system; the pressure stabilizing system is connected to the fire water tank;

[0007] The fire protection network pipe is provided with two routes, namely the first fire protection network pipe and the second fire protection network pipe. One end of the first fire protection network pipe and the second fire protection network pipe are both connected to the fire water storage tank. The other end of the first fire protection network pipe is provided with a water sprinkler fire protection system outlet, and the other end of the second fire protection network pipe is provided with a fire hydrant fire protection system outlet. Fire pumps are provided on the first fire protection network pipe and the second fire protection network pipe near the fire water storage tank, namely the first fire pump and the second fire pump. A first connecting channel and a second connecting channel are provided in parallel between the first fire protection network pipe and the second fire protection network pipe for connecting the two fire protection network pipes.

[0008] As a further technical solution, a pressure switch is provided in the first connecting channel or the second connecting channel of the fire protection network management, and the pressure value set by the pressure switch is used as a start-up signal of the fire hydrant fire protection system.

[0009] As a further technical solution, the fire protection network management system also includes a water testing system, which includes a water testing pipe and a water testing pressure testing device. The water testing pressure testing device is arranged on the water testing pipe. One end of the water testing pipe is connected to the first connecting channel, and the other end is connected to the fire protection water tank. Two water testing flow testing devices are arranged on the first connecting channel, and the two water testing flow testing devices are arranged on both sides of the water testing pipe.

[0010] As a further technical solution, a water test valve is provided beside the two water test flow test devices and close to the two fire protection network pipes.

[0011] As a further technical solution, pressure testing devices are provided on both sides of the first fire pump and the second fire pump.

[0012] As a further technical solution, the pressure stabilizing system includes an air pressure tank and two pressure stabilizing delivery pipes arranged in parallel, a fire-fighting pressure stabilizing pump is arranged on the two pressure stabilizing delivery pipes, and the lower end of the air pressure tank is connected to the air pressure delivery pipe.

[0013] As a further technical solution, one end of the two pressure-stabilizing delivery pipes is connected to the fire water tank, and the other end is connected to the air pressure delivery pipe to form two branch pipes, and the two branch pipes are respectively connected to the two fire network pipes.

[0014] As a further technical solution, a pressure relief pipe is connected to the second connecting channel, one end of the pressure relief pipe is connected to the second connecting channel, and the other end is connected to the fire water storage tank, and a safety pressure relief valve and a check valve are sequentially arranged on the pressure relief pipe along the water supply direction.

[0015] As a further technical solution, a water inlet pipe is provided on the fire water tank, and a float valve is provided on the water inlet pipe.

[0016] As a further technical solution, the first fire pump and the second fire pump are provided with a fire pump control device connected thereto, and the fire pump control device includes a controller, an IO module, a communication module, a human-machine interface, an IO interface and a communication interface.

[0017] As a further technical solution, the IO module and the communication module are both interactively connected to the controller, the first fire pump and the second fire pump are connected to the fire pump control device through the IO interface, and the human-machine interface is interactively connected to the controller through the communication interface.

[0018] One or more technical solutions of the utility model have the following beneficial effects:

[0019] The utility model replaces four fire pumps in the prior art with two fire pumps, and uses two fire pumps to undertake the water sprinkler fire extinguishing system and the fire hydrant fire extinguishing system. On the basis of not affecting the normal function of the fire network management system, the existing fire water supply system is simplified to a greater extent. The fire water supply system designed by the utility model can reduce the construction cost and construction period, and has low later maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0021] Figure 1 This is a schematic diagram of the structure of the fire water supply system of the utility model;

[0022] Figure 2 This is a diagram showing the components of the fire pump control device of the utility model;

[0023] Among them: 1 is a fire water storage tank, 2 is the first fire network management, 3 is the second fire network management, 4 is the outlet of the water sprinkler fire protection system, 5 is the outlet of the fire hydrant fire protection system, 6 is the first fire pump, 7 is the second fire pump, 8 is the first communication channel, 9 is the second communication channel, 10 is a water test pipe, 11 is a water test pressure test device, 12 is a water test flow test device, 13 is a pressure relief pipe, 14 is a safety pressure relief valve, 15 is an air pressure tank, 16 is a pressure stabilizing delivery pipe, 17 is a fire stabilizing pump, 18 is an air pressure delivery pipe, 19 is a fire water tank, 20 is a controller, 21 is an IO interface, 22 is a communication interface, 23 is a human-machine interface, 24 is an IO module, 25 is a communication module, and 26 is a deluge valve group. DETAILED DESCRIPTION

[0024] It should be noted that the following detailed descriptions are all illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0025] Embodiment 1

[0026] like Figure 1 As shown, the utility model provides a fire water supply system, including: a fire network management, a fire water tank, a fire water reservoir, and a pressure stabilizing system, wherein the pressure stabilizing system is connected to the fire water tank.

[0027] In this embodiment, if Figure 1As shown, the fire network management is provided with two routes, namely the first fire network management and the second fire network management, one end of the first fire network management and the second fire network management are both connected to the fire water storage tank, the other end of the first fire network management is provided with a water sprinkler fire system outlet, the other end of the second fire network management is provided with a fire hydrant fire system outlet, and two fire pumps are provided on the first fire network management and the second fire network management and near the fire water storage tank, respectively corresponding to the first fire pump and the second fire pump, that is, two fire pumps are used to replace the four fire pumps conventionally provided, that is, in this embodiment, two fire pumps are used to undertake the water sprinkler fire extinguishing system and the fire hydrant fire extinguishing system, simplifying the existing fire network management. Reduce the cost of design, construction, construction, and maintenance of the fire network management system.

[0028] like Figure 1 As shown, a first connecting passage and a second connecting passage are arranged in parallel between the first fire fighting network pipe and the second fire fighting network pipe, which are used to connect the two fire fighting network pipes. The fire fighting network pipe system also includes a water testing system, which includes a water testing pipe and a water testing pressure testing device. The water testing pressure testing device is arranged on the water testing pipe. One end of the water testing pipe is connected to the first connecting passage, and the other end is connected to the fire fighting water reservoir. Two water testing flow testing devices are arranged on the first connecting passage, and the two water testing flow testing devices are arranged on both sides of the water testing pipe. Water testing valves are arranged next to the two water testing flow testing devices and near the two fire fighting network pipes. The two water testing valves are in a normally closed state. Pressure testing devices are arranged on the two fire fighting network pipes and between the fire fighting pump and the first connecting passage.

[0029] In addition to the above design, taking the second fire protection network management as an example, Figure 1 As shown, a gate valve is also provided between the second fire pump and the fire water reservoir along the water supply direction, and both ends of the second fire pump are connected to the second fire network pipe through flexible joints, and a silencer check valve is provided near the first connecting pipe and next to the pressure detection device. A gate valve is provided on the second fire network pipe and between the first connecting pipe and the second connecting pipe, and an electric butterfly valve is provided on the second fire network pipe and near the outlet of the water sprinkler fire protection system. In addition to having the same design as the second fire network pipe as described above, a deluge valve group is provided on the first fire network pipe and between the electric butterfly valve and the outlet of the water sprinkler fire protection system.

[0030] like Figure 1 As shown, a pressure relief pipe is connected to the second connecting channel, one end of the pressure relief pipe is connected to the second connecting channel, and the other end is connected to the fire water storage tank, and along the water supply direction, a safety pressure relief valve, a check valve and a gate valve are sequentially arranged on the pressure relief pipe.

[0031] In this embodiment, if Figure 1As shown, the pressure stabilizing system includes an air pressure tank and two parallel-connected pressure stabilizing delivery pipes, the two pressure stabilizing delivery pipes are provided with fire-fighting pressure stabilizing pumps, the lower end of the air pressure tank is connected to the air pressure delivery pipe, one end of the two pressure stabilizing delivery pipes are connected to the fire water tank, and the other end is connected to the air pressure delivery pipe to form two branch pipes, and the two branch pipes are respectively connected to the two fire network pipes. In addition to the above design, taking one of the pressure stabilizing delivery pipes as an example, a gate valve is also provided on the pressure stabilizing delivery pipe and between the fire-fighting pressure stabilizing pump and the fire water tank, the two ends of the fire-fighting pressure stabilizing pump are connected to the pressure stabilizing delivery pipe through flexible joints, and along the water supply direction, a gate valve and a water stop valve are also provided in sequence behind the fire-fighting pressure stabilizing pump and on the pressure stabilizing delivery pipe, and an electric contact pressure gauge is also provided between the two pressure stabilizing delivery pipes.

[0032] In this embodiment, if Figure 1 As shown, a water inlet pipe is arranged on the fire water tank, the water inlet end of the water inlet pipe is connected to the external water source, and the water outlet end is connected to the fire water tank. Along the water inlet direction, a gate valve, a water stop valve and a float valve are arranged on the water inlet pipe in sequence.

[0033] In this embodiment, if Figure 2 As shown, the first fire pump and the second fire pump are provided with a fire pump control device connected thereto, the fire pump control device comprising a controller, an I / O module, a communication module, a human-machine interface, an I / O interface and a communication interface, wherein the controller adopts a PLC programmable controller host, the I / O module is an I / O expansion module, the communication module adopts an RS-485 communication module, both the I / O module and the communication module are interactively connected with the controller, the first fire pump and the second fire pump are connected with the fire pump control device via the I / O interface, and the human-machine interface is interactively connected with the controller via the communication interface.

[0034] The working principle of the above fire pump control device is:

[0035] The fire pump control device consists of a PLC programmable controller as the core control unit, an I / O module as the logic control unit, and a human-machine interface as the display unit.

[0036] The core control unit of the fire pump control device serves as the control center. In addition to monitoring the input signal of the I / O module logic unit, it can also read the water level of the fire water storage tank and the pressure value of the fire network management, collect the working pressure, flow, current parameters and fault information of the fire pump after startup, transmit them to the human-machine interface for display, and store them.

[0037] The core control unit monitors the input signal of the I / O module logic unit in real time, and mobilizes the output signal to start and stop the fire pump. The core control unit can also transmit the start status and parameters of the fire pump to the substation automation system in real time through the RS-485 communication module. The core control unit can also connect the operation, standby status, and fault signals collected by the control device to the substation integrated measurement and control cabinet through the I / O module logic unit, and be called by the substation integrated automation system. It should be noted that the above control logic can be implemented using existing technology, and the above control logic is not improved in this embodiment.

[0038] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A fire water supply system, characterized in that: include: Fire protection network management, fire protection water tank, fire protection water reservoir, pressure stabilizing system; the pressure stabilizing system is connected to the fire protection water tank; The fire protection network pipe is provided with two routes, namely the first fire protection network pipe and the second fire protection network pipe. One end of the first fire protection network pipe and the second fire protection network pipe are both connected to the fire water storage tank. The other end of the first fire protection network pipe is provided with a water sprinkler fire protection system outlet, and the other end of the second fire protection network pipe is provided with a fire hydrant fire protection system outlet. Fire pumps are provided on the first fire protection network pipe and the second fire protection network pipe near the fire water storage tank, namely the first fire pump and the second fire pump. A first connecting channel and a second connecting channel are provided in parallel between the first fire protection network pipe and the second fire protection network pipe for connecting the two fire protection network pipes.

2. A fire water supply system according to claim 1, characterized in that: The fire water supply system also includes a water test system, which includes a water test pipe and a water test pressure testing device. The water test pressure testing device is arranged on the water test pipe. One end of the water test pipe is connected to the first connecting channel, and the other end is connected to the fire water storage tank. Two water test flow testing devices are arranged on the first connecting channel, and the two water test flow testing devices are arranged on both sides of the water test pipe.

3. A fire water supply system as claimed in claim 2, characterized in that: A water test valve is arranged beside the two water test flow test devices and close to the two fire protection network pipes.

4. A fire water supply system according to claim 1, characterized in that: Pressure testing devices are provided on both sides of the first fire pump and the second fire pump.

5. A fire water supply system according to claim 1, characterized in that: The pressure stabilizing system comprises an air pressure tank and two pressure stabilizing delivery pipes arranged in parallel, a fire-fighting pressure stabilizing pump is arranged on the two pressure stabilizing delivery pipes, and the lower end of the air pressure tank is connected to the air pressure delivery pipe.

6. A fire water supply system as claimed in claim 5, characterized in that: One end of the two pressure-stabilizing delivery pipes is connected to the fire water tank, and the other end is connected to the air pressure delivery pipe to form two branch pipes, and the two branch pipes are respectively connected to the two fire network pipes.

7. A fire water supply system according to claim 1, characterized in that: The second connecting passage is connected with a pressure relief pipe, one end of which is connected to the second connecting passage and the other end is connected to the fire water storage tank. A safety pressure relief valve and a check valve are sequentially arranged on the pressure relief pipe along the water supply direction.

8. A fire water supply system according to claim 1, characterized in that: The fire water tank is provided with a water inlet pipe, and the water inlet pipe is provided with a float valve.

9. A fire water supply system according to claim 1, characterized in that: The first fire pump and the second fire pump are provided with a fire pump control device connected thereto. The fire pump control device includes a controller, an IO module, a communication module, a human-machine interface, an IO interface and a communication interface.

10. A fire water supply system according to claim 9, characterized in that: The IO module and the communication module are both interactively connected to the controller, the first fire pump and the second fire pump are connected to the fire pump control device through the IO interface, and the human-machine interface is interactively connected to the controller through the communication interface.

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