CN219208792U - Tunnel water fire-fighting intelligent anti-freezing system based on micro-pressure self-circulation and fixed-point heat supply - Google Patents
Tunnel water fire-fighting intelligent anti-freezing system based on micro-pressure self-circulation and fixed-point heat supply Download PDFInfo
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- CN219208792U CN219208792U CN202222813882.6U CN202222813882U CN219208792U CN 219208792 U CN219208792 U CN 219208792U CN 202222813882 U CN202222813882 U CN 202222813882U CN 219208792 U CN219208792 U CN 219208792U
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Abstract
The application discloses tunnel water fire control intelligence system that prevents frostbite based on micropressure self-loopa and fixed point heat supply, including micropressure self-loopa actuating device, firing equipment, temperature detection equipment, first solenoid valve and second solenoid valve, outlet pipe one end is passed through the fire pump and is connected with the fire water pond, the other end is connected with tunnel fire control trunk line, first solenoid valve is installed on the outlet pipe and is located between fire pump and the tunnel fire control trunk line, micropressure self-loopa actuating device and firing equipment pass through behind the first pipeline series with first solenoid valve parallel connection, second solenoid valve and temperature detection equipment are installed on tunnel fire control trunk line. The independent looped network characteristic of tunnel fire control main pipe is utilized in this application, carries out fixed point heat supply through micropressure self-loopa actuating device and firing equipment to the fire water of local fire control pipeline, has solved tunnel fire control system trunk line problem of preventing frostbite, has realized intelligent fortune dimension in the maximum degree, has supplied heat as required, has reduced the system operation cost that prevents frostbite, reaches energy saving and emission reduction's purpose.
Description
Technical Field
The application relates to the technical field of highway tunnel fire control and freeze protection, in particular to a tunnel water fire control intelligent freeze protection system based on micro-pressure self-circulation and fixed point heat supply.
Background
Along with the rapid development of highway traffic construction industry in China, the number of tunnels is obviously increased, and a large number of cold area highway tunnels are built and put into use. Seasonal low temperature causes crack, infiltration icing, concrete spalling and winter fire control water source icing phenomenon of cold district tunnel structure, can cause fire control pipeline freezing problem when the thermal insulation measure is not in place, causes fire control system unable normal use under the conflagration operating mode. Therefore, more heat energy is required to be consumed to maintain the temperature of the fire-fighting pipeline higher than the freezing temperature, and energy conservation becomes a key problem of the tunnel water fire-fighting and anti-freezing technology in cold areas on the premise of guaranteeing the water fire-fighting function in winter.
The conventional treatment measures of water fire control and freezing prevention comprise a heat insulation freezing prevention method, a heating freezing prevention method and a heat preservation method, and the methods are combined, wherein the heating freezing prevention method comprises two measures of electric heating and heating. Most commonly, electric heating is assisted by a thermal insulation layer method, and some tunnel fire-fighting pipelines run in empty pipes in winter, and individual tunnel fire-fighting pipelines are filled with antifreeze or extinguishing agents.
However, the operation cost of the electric heating assisted by the heat insulation layer method is generally high. The whole electric mixing heating system needs to be monitored and controlled on line, and can be found and salvaged in time under the condition of unexpected failure of the electric mixing heating system. In practical application, the electric heating system has frequent faults, the maintenance difficulty is very high, even if the fault rate of some tunnels is too high, even if related equipment and facilities are arranged, the fire-fighting water pipe cannot be ensured not to be frozen, and the fire-fighting water pipe is forced to be emptied in winter.
The mode of the operation of the fire-fighting pipeline air pipe is limited by the water filling time of the pipe network for 5min, so that the requirement is difficult to meet, and the optimal fire-fighting time can be shortened.
The antifreeze filling pipeline can realize no freezing, but ensures that the antifreeze is nontoxic and cannot have combustion supporting property and combustibility, and meanwhile, the problem that the expansion amount of the antifreeze is absorbed during temperature rising and the contraction amount of the antifreeze is filled during temperature reducing is solved. From the results of a small amount of application cases at present, the ethylene glycol antifreeze causes large-scale salt corrosion and crystallization of pipelines, and the coal-fired boiler heating method is successfully applied to individual tunnels, but also has the problems of high operation cost and environmental pollution.
In view of the foregoing, it is highly desirable to find an antifreeze system for water fire protection systems that has reliable performance, is convenient to maintain and has low power consumption.
Disclosure of Invention
Therefore, the application provides a tunnel water fire-fighting intelligent anti-freezing system based on micro-pressure self-circulation and fixed-point heat supply, so as to solve the problems that the water fire-fighting anti-freezing system in the prior art is inconvenient to manage and maintain, and has high power consumption and cost.
In order to achieve the above object, the present application provides the following technical solutions:
the tunnel water fire-fighting intelligent anti-freezing system based on micro-pressure self-circulation and fixed-point heat supply comprises a fire-fighting water tank, a fire-fighting pump, a water outlet pipe and a tunnel fire-fighting main pipe, wherein one end of the water outlet pipe is connected with the fire-fighting water tank through the fire-fighting pump, and the other end of the water outlet pipe is connected with the tunnel fire-fighting main pipe; the system comprises a fire pump, a tunnel fire main pipe, a first pipeline, a micro-pressure self-circulation driving device, a heating device, a temperature detection device, a first electromagnetic valve and a second electromagnetic valve, wherein the first electromagnetic valve is arranged on the water outlet pipe and positioned between the fire pump and the tunnel fire main pipe, the micro-pressure self-circulation driving device and the heating device are connected in series through the first pipeline and then connected with the first electromagnetic valve in parallel, and the second electromagnetic valve and the temperature detection device are arranged on the tunnel fire main pipe.
Preferably, the micro-pressure self-circulation driving device is a variable-frequency circulating water pump.
Preferably, the heating device is an air source heat pump.
Preferably, the micro-pressure self-circulation driving device and the heating device are both provided with two.
Preferably, the temperature detection device is provided with at least two.
Preferably, the temperature detection device is a temperature sensor.
Preferably, a flow transmitter is also included, the flow transmitter being mounted on the first conduit.
Preferably, a valve is further arranged on the first pipeline.
Compared with the prior art, the application has the following beneficial effects:
the application provides a tunnel water fire control intelligence system of preventing frostbite based on micro-pressure self-loopa and fixed point heat supply, including the fire-fighting pond, the fire pump, the outlet pipe, tunnel fire control main pipe, first pipeline, micro-pressure self-loopa actuating device, heating device, temperature detection equipment, first solenoid valve and second solenoid valve, outlet pipe one end is passed through the fire pump and is connected with the fire-fighting pond, the other end is connected with tunnel fire control main pipe, first solenoid valve is installed on the outlet pipe and is located between fire pump and the tunnel fire control main pipe, micro-pressure self-loopa actuating device and heating device pass through first pipeline series back with first solenoid valve parallel connection, second solenoid valve and temperature detection equipment are installed on tunnel fire control main pipe. The independent looped network characteristic of tunnel fire control main pipe is utilized in this application, carries out fixed point heat supply through micropressure self-loopa actuating device and firing equipment to the fire water of local fire control pipeline, has solved tunnel fire control system trunk line problem of preventing frostbite, has realized intelligent fortune dimension in the maximum degree, has supplied heat as required, has reduced the system operation cost that prevents frostbite, reaches energy saving and emission reduction's purpose.
The micro-pressure self-circulation driving device and the heating device are both provided with two devices, so that one device is used for one purpose.
Drawings
For a more visual illustration of the prior art and the present application, several exemplary drawings are presented below. It should be understood that the specific shape and configuration shown in the drawings should not be considered in general as limiting upon the practice of the present application; for example, based on the technical concepts and exemplary drawings disclosed herein, those skilled in the art have the ability to easily make conventional adjustments or further optimizations for the add/subtract/assign division, specific shapes, positional relationships, connection modes, dimensional scaling relationships, etc. of certain units (components).
Fig. 1 is a schematic structural diagram of a tunnel water fire-fighting intelligent anti-freezing system based on micro-pressure self-circulation and fixed-point heat supply;
FIG. 2 is a schematic diagram of the tunnel water fire-fighting intelligent anti-freezing system based on micro-pressure self-circulation and fixed-point heat supply;
fig. 3 is a control schematic diagram of the tunnel water fire-fighting intelligent anti-freezing system based on micro-pressure self-circulation and fixed-point heat supply.
Reference numerals illustrate:
1. a fire pump house; 2. a fire-fighting water tank; 3. a fire pump; 4. micro-pressure self-circulation and fixed-point heating device; 41. a heating device; 42. micro-pressure self-circulation driving equipment; 43. a first control cabinet; 44. a second control cabinet; 5. a first pipe; 6. a first electromagnetic valve; 7. a second electromagnetic valve; 8. a temperature detection device; 9. a tunnel fire-fighting main pipe; 10. a water outlet pipe; 11. a flow transmitter.
Detailed Description
The present application is further described in detail below with reference to the attached drawings.
In the description of the present application: unless otherwise indicated, the meaning of "a plurality" is two or more. The terms "first," "second," "third," and the like in this application are intended to distinguish between the referenced objects without a special meaning in terms of technical connotation (e.g., should not be construed as emphasis on degree or order of importance, etc.). The expressions "comprising", "including", "having", etc. also mean "not limited to" (certain units, components, materials, steps, etc.).
The terms such as "upper", "lower", "left", "right", "middle", and the like, as referred to in this application, are generally used for convenience in visual understanding with reference to the drawings, and are not intended to be an absolute limitation of the positional relationship in actual products. Such changes in relative positional relationship are considered to be within the scope of the present description without departing from the technical concepts disclosed herein.
Referring to fig. 1, the application provides a tunnel water fire-fighting intelligent anti-freezing system based on micro-pressure self-circulation and fixed-point heat supply, which comprises a fire-fighting water tank 2, a fire pump 3, a water outlet pipe 10, a tunnel fire-fighting main pipe 9, a first pipeline 5, a micro-pressure self-circulation driving device 42, a heating device 41, at least two temperature detection devices 8, a first electromagnetic valve 6 and a second electromagnetic valve 7; preferably, the micro-pressure self-circulation driving device 42 is a variable-frequency circulating water pump, the heating device 41 is an air source heat pump, and the temperature detecting device is a temperature sensor; the micro-pressure self-circulation driving device 42 and the heating device 41 are provided with two devices, so that one device is used for standby.
In the application, one end of a water outlet pipe 10 is connected with a fire water pond 2 through a fire pump 3, and the other end is connected with a tunnel fire main pipe 9; the first electromagnetic valve 6 is arranged on the water outlet pipe 10 and is positioned between the fire pump 3 and the tunnel fire-fighting main pipe 9, the micro-pressure self-circulation driving device 42 and the heating device 41 are connected in parallel with the first electromagnetic valve 6 after being connected in series through the first pipeline 5, the first pipeline 5 comprises three sections of pipelines, and the three sections of first pipelines 5 and the half water outlet pipe 10 provided with the first electromagnetic valve 6 form a rectangle; the second electromagnetic valve 7 and the temperature detection device 8 are installed on the tunnel fire main 9. The independent looped network characteristic of tunnel fire control main pipe is utilized in this application, carries out fixed point heat supply through micropressure self-loopa actuating device and firing equipment to the fire water of local fire control pipeline, has solved tunnel fire control system trunk line problem of preventing frostbite, has realized intelligent fortune dimension in the maximum degree, has supplied heat as required, has reduced the system operation cost that prevents frostbite, reaches energy saving and emission reduction's purpose.
Referring to fig. 2, in the present application, the micro-pressure self-circulation and fixed-point heating apparatus 4 (i.e. the heating device 41, the micro-pressure self-circulation driving device 42, the first control cabinet 43 and the second control cabinet 44) is preferably installed in a spare area of the underground fire pump room 1, and may be installed in an overhead manner, but a maintenance stair is required to be set. Further, the tunnel water fire control intelligence system that prevents frostbite based on micropressure self-loopa and fixed point heat supply that this application provided still includes flow transmitter, and flow transmitter installs on first pipeline 5, still is equipped with two valves on the first pipeline 5.
More specifically, the heating device 41 in the application is controlled by a first control cabinet 43, the first control cabinet 43 is a fixed-point intermediate-frequency intelligent heating control cabinet, the first control cabinet 43 is controlled by a second control cabinet 44, the second control cabinet 44 is a complete machine control cabinet of the tunnel water fire-fighting intelligent anti-freezing system based on micro-pressure self-circulation and fixed-point heat supply, and the micro-pressure self-circulation driving device 41, the first electromagnetic valve 6, the second electromagnetic valve 7, the temperature detection device 8 and the flow transmitter 11 are also controlled by the second control cabinet 44.
In this application, the air type fixed point intermediate frequency intelligent heating system that comprises firing equipment 41 and first switch board 43 uses electric power as the energy to the air is the medium, and heating efficiency is high, and stable performance, and through gathering into, delivery port temperature value, adopts PID automatic operation function, heats the stepless regulation of output power frequency conversion, guarantees that the required heat energy of fire control pipe network water system matches with unit heating power.
The first electromagnetic valve 6 and the second electromagnetic valve 7 are connected with the system through a linkage signal transmission cable, and are in an open state when in a fire-fighting working condition, water flow in the tunnel fire-fighting main pipe 9 can flow in a bidirectional circulating mode, and the reliable fire-fighting water supply is ensured; during the heating working condition, the two electromagnetic valves are in a closed state, and the water flow in the tunnel fire main 9 carries out unidirectional circulation flow under the working of the self-circulation equipment 42.
The two temperature detection devices 8 are preferably arranged near the water outlet and return ends of the tunnel fire-fighting annular pipe network and are used for detecting the environment in the tunnel and the temperature change condition of the fire-fighting annular pipe network.
Referring to fig. 3, according to real-time temperature data acquired by multiple points of the fire-fighting pipe network, the automatic control system completes corresponding logic output, and achieves automatic micro-pressure circulation and heat source input control. When the water temperature in the fire-fighting water system pipe network is lower than 5 ℃, the whole machine control cabinet starts a first group of heating sources of the intelligent modular heating equipment, and meanwhile, the micro-pressure self-circulation driving equipment 42 automatically outputs a circulation pump driving unit corresponding to the first group of heating sources, so that the flow rate of water in the main pipe of the whole fire-fighting pipe network is increased and the first heating source is input; if the water temperature is still not higher than 5 ℃ after the set time, sequentially starting a second group of heating sources and subsequent heating sources, and adjusting the flow of the intelligent micro-pressure self-circulation equipment and the flow rate of the water medium.
It is noted that, because the fire water of the branch pipe at the fire hydrant is inconvenient to participate in the main pipeline circulation, the electric heating is adopted to assist the heat insulation method to prevent freezing.
The application has the following advantages:
(1) The local heating mode directly transmits heat to the water medium, so that large-area heat loss caused by electric tracing along the heating line is avoided, and meanwhile, the whole heat transmission efficiency of the anti-freezing system is higher by combining with the high-efficiency air source heat pump.
(2) The variable frequency circulating pump is adopted, starting impact is not generated on a fire fighting pipe network, the operation state is stable, heat transfer is more balanced due to low-speed circulation of fire fighting water in the fire fighting main pipe, and the probability of pipeline rupture caused by static water frost heave in a pipeline when a traditional electric tracing loop fails is effectively reduced.
(3) Heating equipment and valve subassembly are concentrated and are arranged in fire pump room, and system remote control, real-time supervision, unmanned on duty need not long-term maintenance along the line, reduce maintenance management working strength.
(4) The computer intelligent control system can automatically adjust the circulation opening time, the flow rate, the heating power and the like according to the water temperature and the seasonal variation of the pipeline, realize the heat supply according to the needs, reduce the energy consumption, have high intelligent degree and save the operation cost.
To sum up, the tunnel water fire control intelligence anti-freezing system based on micropressure self-loopa and fixed point heat supply that this application provided is applied to cold district tunnel water fire control anti-freezing, and is more energy-conserving, more intelligent, the maintenance is more convenient.
Any combination of the technical features of the above embodiments may be performed (as long as there is no contradiction between the combination of the technical features), and for brevity of description, all of the possible combinations of the technical features of the above embodiments are not described; these examples, which are not explicitly written, should also be considered as being within the scope of the present description.
The foregoing has outlined and detailed description of the present application in terms of the general description and embodiments. It should be appreciated that numerous conventional modifications and further innovations may be made to these specific embodiments, based on the technical concepts of the present application; but such conventional modifications and further innovations may be made without departing from the technical spirit of the present application, and such conventional modifications and further innovations are also intended to fall within the scope of the claims of the present application.
Claims (8)
1. The utility model provides a tunnel water fire control intelligence system of preventing frostbite based on micropressure self-loopa and fixed point heat supply, includes fire-fighting water pond, fire pump, outlet pipe and tunnel fire control trunk, outlet pipe one end is passed through the fire pump with the fire-fighting water pond is connected, the other end with tunnel fire control trunk is connected, its characterized in that still includes first pipeline, micropressure self-loopa actuating device, firing equipment, temperature detection equipment, first solenoid valve and second solenoid valve, first solenoid valve is installed on the outlet pipe and be located the fire pump with between the tunnel fire control trunk, micropressure self-loopa actuating device with firing equipment passes through behind the first pipeline series with first solenoid valve parallel connection, the second solenoid valve with temperature detection equipment installs on the tunnel fire control trunk.
2. The tunnel water fire-fighting intelligent anti-freezing system based on micro-pressure self-circulation and fixed-point heat supply according to claim 1, wherein the micro-pressure self-circulation driving device is a variable-frequency circulating water pump.
3. The tunnel water fire-fighting intelligent anti-freezing system based on micro-pressure self-circulation and fixed-point heat supply according to claim 1, wherein the heating equipment is an air source heat pump.
4. The tunnel water fire-fighting intelligent anti-freezing system based on micro-pressure self-circulation and fixed-point heat supply according to claim 1, wherein the micro-pressure self-circulation driving device and the heating device are both provided with two.
5. The tunnel water fire-fighting intelligent anti-freezing system based on micro-pressure self-circulation and fixed-point heat supply according to claim 1, wherein at least two temperature detection devices are arranged.
6. The tunnel water fire-fighting intelligent anti-freezing system based on micro-pressure self-circulation and fixed-point heat supply according to claim 1, wherein the temperature detection equipment is a temperature sensor.
7. The intelligent anti-freezing system for tunnel water fire control based on micro-pressure self-circulation and fixed point heat supply according to claim 1, further comprising a flow transmitter, wherein the flow transmitter is installed on the first pipeline.
8. The tunnel water fire-fighting intelligent anti-freezing system based on micro-pressure self-circulation and fixed-point heat supply according to claim 1, wherein a valve is further arranged on the first pipeline.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222813882.6U CN219208792U (en) | 2022-10-25 | 2022-10-25 | Tunnel water fire-fighting intelligent anti-freezing system based on micro-pressure self-circulation and fixed-point heat supply |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222813882.6U CN219208792U (en) | 2022-10-25 | 2022-10-25 | Tunnel water fire-fighting intelligent anti-freezing system based on micro-pressure self-circulation and fixed-point heat supply |
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| CN219208792U true CN219208792U (en) | 2023-06-20 |
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