CN111803851B - Fire-fighting ventilation system - Google Patents
Fire-fighting ventilation system Download PDFInfo
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- CN111803851B CN111803851B CN202010673252.6A CN202010673252A CN111803851B CN 111803851 B CN111803851 B CN 111803851B CN 202010673252 A CN202010673252 A CN 202010673252A CN 111803851 B CN111803851 B CN 111803851B
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- ventilation system
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- 238000009423 ventilation Methods 0.000 title claims abstract description 82
- UKACHOXRXFQJFN-UHFFFAOYSA-N heptafluoropropane Chemical compound FC(F)C(F)(F)C(F)(F)F UKACHOXRXFQJFN-UHFFFAOYSA-N 0.000 claims abstract description 53
- 238000012544 monitoring process Methods 0.000 claims abstract description 37
- 230000007613 environmental effect Effects 0.000 claims abstract description 7
- 239000000779 smoke Substances 0.000 claims description 20
- 239000003795 chemical substances by application Substances 0.000 claims description 17
- 230000005284 excitation Effects 0.000 claims description 16
- 230000009471 action Effects 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 4
- 230000003111 delayed effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 230000007246 mechanism Effects 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
- A62C37/40—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/58—Pipe-line systems
- A62C35/68—Details, e.g. of pipes or valve systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/33—Responding to malfunctions or emergencies to fire, excessive heat or smoke
- F24F11/35—Responding to malfunctions or emergencies to fire, excessive heat or smoke by closing air passages
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
本发明涉及一种消防通风系统，包括主管道、七氟丙烷灭火系统、通风系统、电动三通阀、环境监测单元以及控制回路；所述主管道分别连通七氟丙烷灭火系统、通风系统以及设备室，通过环境监测单元监测设备室内的火情，当设备室内没有火情时，控制回路控制电动三通阀中的活塞位于第一预设位置，环境监测单元启动所述通风系统输出自然风至设备室以及关闭所述七氟丙烷灭火系统；当监测到设备室内发生火情时，控制回路控制电动三通阀中的活塞位于第二预设位置，所述环境监测单元启动所述七氟丙烷灭火系统输出灭火剂至设备室以及关闭所述通风系统，从而进行良好地智能监控以及控制消防设备进行通风或灭火模式的切换，提高消防系统的消防效果和安全性。
The invention relates to a fire-fighting ventilation system, comprising a main pipeline, a heptafluoropropane fire-extinguishing system, a ventilation system, an electric three-way valve, an environmental monitoring unit and a control circuit; the main pipeline is respectively connected with the heptafluoropropane fire-extinguishing system, the ventilation system and the equipment room, The monitoring unit monitors the fire situation in the equipment room. When there is no fire in the equipment room, the control circuit controls the piston in the electric three-way valve to be at the first preset position, and the environmental monitoring unit starts the ventilation system to output natural wind to the equipment room and close it. The heptafluoropropane fire-extinguishing system; when a fire is detected in the equipment room, the control circuit controls the piston in the electric three-way valve to be at the second preset position, and the environment monitoring unit starts the heptafluoropropane fire-extinguishing system to output the fire extinguishing agent to the equipment room And close the ventilation system, so as to perform good intelligent monitoring and control the fire protection equipment to switch the ventilation or fire extinguishing mode, so as to improve the fire protection effect and safety of the fire protection system.
Description
Technical Field
The invention relates to the technical field of fire safety, in particular to a fire-fighting ventilation system.
Background
The fire extinguishing system is one of indispensable important systems of building, when the indoor conflagration that takes place, the fire extinguishing system should put out a fire in time, when the indoor conflagration that does not take place, the fire extinguishing system should carry out normal ventilation, consequently, it has intelligent monitoring and control fire fighting equipment and ventilates or the switching of mode of putting out a fire to need the fire extinguishing system, but the fire extinguishing system intelligent degree in present many buildings is not high, can't carry out well intelligent monitoring and control fire fighting equipment and ventilate or the switching of mode of putting out a fire, lead to the fire extinguishing system's fire control effect not good, the security is not high.
Disclosure of Invention
The invention aims to provide a fire-fighting ventilation system to improve the intelligent degree, the fire-fighting effect and the safety of a fire-fighting system.
In order to achieve the purpose, the embodiment of the invention provides a fire-fighting ventilation system, which comprises a main pipeline, a heptafluoropropane fire-extinguishing system, a ventilation system, an electric three-way valve, an environment monitoring unit and a control loop, wherein the main pipeline is connected with the heptafluoropropane fire-extinguishing system;
the main pipeline comprises a ventilating pipeline, a fire extinguishing pipeline and a public pipeline which are communicated with each other, the ventilating pipeline is communicated with the ventilating system, the fire extinguishing pipeline is communicated with the heptafluoropropane fire extinguishing system, the public pipeline is communicated with an equipment room, and the electric three-way valve is arranged at the joint of the ventilating pipeline, the fire extinguishing pipeline and the public pipeline;
the control loop is used for receiving an excitation signal of the environment monitoring unit and controlling a piston of the electric three-way valve to move to a first preset position according to the excitation signal so that the ventilation system is communicated with the equipment room, or controlling the piston of the electric three-way valve to move to a second preset position so that the heptafluoropropane fire extinguishing system is communicated with the equipment room;
the environment monitoring unit is used for starting the ventilation system to output natural wind to the equipment room and closing the heptafluoropropane fire extinguishing system when no fire situation in the equipment room is monitored; or when the fire situation in the equipment room is monitored, the excitation signal is output, the heptafluoropropane fire extinguishing system is started to output fire extinguishing agent to the equipment room, and the ventilation system is closed.
Optionally, the equipment room is provided with a vent, an electric shutter is arranged at the vent and linked with the heptafluoropropane fire extinguishing system, when the heptafluoropropane fire extinguishing system is started, the electric shutter is switched to a first state to enable the vent to be closed, and when the heptafluoropropane fire extinguishing system is closed, the electric shutter is switched to a second state to enable the vent to be opened.
Optionally, the control loop comprises a first coil loop and a second coil loop;
the first coil loop comprises a first coil, a normally closed auxiliary contact of the fire hazard detector, a normally closed auxiliary contact of the second travel switch and a normally open auxiliary contact of the first travel switch which are sequentially connected through a lead;
the second coil loop comprises a second coil, a normally open auxiliary contact of the fire hazard detector, a normally open auxiliary contact of a second travel switch and a normally closed auxiliary contact of a first travel switch which are sequentially connected through a lead;
the fire hazard detector is used for receiving an excitation signal of the environment monitoring unit;
a first travel switch is arranged at a first preset position on the inner wall of the ventilating pipeline, and a second travel switch is arranged at a second preset position on the inner wall of the fire extinguishing pipeline;
the piston is a magnet and is movably arranged in the electric three-way valve and positioned between the first preset position and the second preset position;
the first coil is used for obtaining electricity to generate magnetic force to attract the piston to move to a first preset position when the first coil loop is closed, and the second coil is used for obtaining electricity to generate magnetic force to attract the piston to move to a second preset position when the second coil loop is closed.
Optionally, the normally open auxiliary contact of the first travel switch and the normally open auxiliary contact of the second travel switch have a time-delay disconnection function.
Optionally, the delay time of the first travel switch is set to be the time taken from the moment that the first travel switch is in the action state to the moment that the first travel switch is in the non-action state to the moment that the piston moves to the first preset position; the delay time of the second travel switch is set to be the time taken from the moment when the second travel switch is in the action state to the non-action state to the moment when the piston moves to the second preset position.
Optionally, a third travel switch is arranged on the wall of the ventilation duct, a third travel switch is arranged on the wall of the fire extinguishing duct, the two third travel switches are located between the first preset position and the second preset position, and the two third travel switches are used for limiting the piston when the piston moves to the first preset position or the second preset position.
Optionally, the first, second and third travel switches are configured as circular arcs.
Optionally, the environmental monitoring unit includes temperature sensor, temperature controller, smoke transducer and smoke controller, temperature sensor is used for detecting the indoor temperature signal of equipment, smoke transducer is used for detecting the indoor smog concentration signal of equipment, temperature controller is used for the basis temperature signal judges the indoor condition of having or not fire of equipment, smoke controller is used for the basis the smog concentration signal is judged the indoor condition of having or not fire of equipment.
Optionally, fire protection and ventilation system still includes alarm device, alarm device includes alarm and fire alarm receiving display, temperature controller is used for when judging first alarm signal is generated when having the condition of a fire in the equipment room, smoke controller is used for when judging second alarm signal is generated when having the condition of a fire in the equipment room, the alarm is used for according to the external signal of pressing first alarm signal or second alarm signal reports to the police, fire alarm receiving display is used for according to the external signal of pressing first alarm signal or second alarm signal carries out the condition of a fire alarm and shows.
Optionally, the heptafluoropropane fire extinguishing system includes gaseous fire extinguishing controller and fire extinguishing execution mechanism, the fire extinguishing controller is used for receiving external press signal, first alarm signal or second alarm signal to according to external press signal, first alarm signal or second alarm signal control fire extinguishing execution mechanism sprays fire extinguishing agent, fire extinguishing agent warp the passageway of putting out a fire gets into the equipment room.
The embodiment of the invention provides a fire-fighting ventilation system, which comprises a main pipeline, a heptafluoropropane fire-extinguishing system, a ventilation system, an electric three-way valve, an environment monitoring unit and a control loop, wherein the main pipeline is connected with the heptafluoropropane fire-extinguishing system through the ventilation system; the main pipeline is respectively communicated with a heptafluoropropane fire extinguishing system, a ventilation system and an equipment room, the fire in the equipment room is monitored through the environment monitoring unit, when the fire does not exist in the equipment room, a control loop controls a piston in an electric three-way valve to be located at a first preset position, and the environment monitoring unit starts the ventilation system to output natural wind to the equipment room and closes the heptafluoropropane fire extinguishing system; when monitoring the indoor condition of a fire that takes place of equipment, the piston in the electronic three-way valve of control loop control is located the second and predetermines the position, the environment monitoring unit starts heptafluoropropane fire extinguishing systems output fire extinguishing agent extremely the equipment room and close ventilation system carries out the switching of well intelligent monitoring and control fire-fighting equipment ventilation or mode of putting out a fire, improves fire extinguishing systems's fire control effect and security.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a perspective view of a fire protection ventilation system according to an embodiment of the present invention.
FIG. 2 is a schematic diagram of the position of the piston of the electric three-way valve in the ventilation mode of the fire protection ventilation system in the embodiment of the invention.
FIG. 3 is a schematic diagram of the position of the piston of the electric three-way valve in the fire extinguishing mode of the fire protection and ventilation system according to the embodiment of the present invention.
Fig. 4 is a schematic flow chart of the working process of the heptafluoropropane gas fire extinguishing system in the embodiment of the invention.
The labels in the figure are:
the fire extinguishing system comprises a ventilation pipeline 1, a fire extinguishing pipeline 2, a public pipeline 3, a heptafluoropropane fire extinguishing system 4, a ventilation system 5, an electric three-way valve 6, a piston 7, an equipment room 8, a ventilation opening 9, a first coil 10 and a second coil 11.
Detailed Description
Various exemplary embodiments, features and aspects of the present invention will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
In addition, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details. In some instances, well known means have not been described in detail so as not to obscure the present invention.
Referring to fig. 1, the embodiment of the invention provides a fire protection and ventilation system 5, which comprises a main pipeline, a heptafluoropropane fire extinguishing system 4, a ventilation system 5, an electric three-way valve 6, an environment monitoring unit and a control loop;
the main pipeline comprises a ventilating pipeline 1, a fire extinguishing pipeline 2 and a public pipeline 3 which are mutually communicated, the ventilating pipeline 1 is communicated with the ventilating system 5, the fire extinguishing pipeline 2 is communicated with the heptafluoropropane fire extinguishing system 4, the public pipeline 3 is communicated with an equipment room 8, and the electric three-way valve 6 is arranged at the joint of the ventilating pipeline 1, the fire extinguishing pipeline 2 and the public pipeline 3;
specifically, the equipment room 8 is a room in which various kinds of equipment are arranged, such as a monitoring room, a machine room, and the like, which are prone to fire caused by problems such as short circuit and heat generation of indoor equipment lines, and therefore, the fire protection and ventilation system 5 of the present embodiment can be applied to various building sites. Ventilation system 5 can be the new trend system for under the condition that does not have the condition of a fire to take place, pass through natural wind (or fresh air) with the help of air pressure in air pipe 1 transmits to equipment room 8, carries out normal air current conversion, heptafluoropropane fire extinguishing system 4 is the fire extinguishing system who adopts heptafluoropropane as fire extinguishing agent, and it is used for under the condition that has the condition of a fire to take place, erupts the fire extinguishing agent, and the fire extinguishing agent passes through in fire extinguishing pipeline 2 gets into equipment room 8, puts out a fire.
The control loop is used for receiving an excitation signal of the environment monitoring unit and controlling the piston 7 of the electric three-way valve 6 to move to a first preset position according to the excitation signal so that the ventilation system 5 is communicated with the equipment room 8, or controlling the piston 7 of the electric three-way valve 6 to move to a second preset position so that the heptafluoropropane fire extinguishing system 4 is communicated with the equipment room 8;
specifically, the electric three-way valve 6 is provided with a piston 7, and the piston 7 is driven and controlled by the control circuit, and the piston 7 moves between the first preset position and the second preset position under the driving control of the control circuit. Referring to fig. 1, when the piston 7 moves to a first preset position, the ventilation system 5 communicates with the equipment room 8 through the ventilation pipe 1, and the fire extinguishing passage between the heptafluoropropane fire extinguishing system 4 and the equipment room 8 is blocked; or, when the piston 7 moves to the second preset position, the ventilation pipeline 1 between the ventilation system 5 and the equipment room 8 is blocked, and the heptafluoropropane fire extinguishing system 4 is communicated with the equipment room 8 through the fire extinguishing passage. The environment monitoring unit is used for starting the ventilation system 5 to output natural wind to the equipment room 8 and closing the heptafluoropropane fire extinguishing system 4 when no fire condition exists in the equipment room 8; or, when no fire condition is detected in the equipment room 8, the excitation signal is output, the heptafluoropropane fire extinguishing system 4 is started to output fire extinguishing agent to the equipment room 8, and the ventilation system 5 is closed.
Specifically, the environment monitoring unit may determine whether a fire occurs in the equipment room 8 according to a preset determination logic/rule by monitoring environmental state information such as temperature and smoke concentration in the equipment room 8, and when it is determined that a fire occurs, the environment monitoring unit generates an excitation signal and transmits the excitation signal to the control loop.
As can be seen from the detailed description of the above embodiment, in the system of this embodiment, the environment monitoring unit monitors the fire in the equipment room 8 in real time, when there is no fire in the equipment room 8, the control circuit controls the piston 7 in the electric three-way valve 6 to be located at the first preset position, and the environment monitoring unit starts the ventilation system 5 to output natural wind to the equipment room 8 and closes the heptafluoropropane fire extinguishing system 4; when monitoring the condition of a fire in the equipment room 8, piston 7 among the electronic three-way valve of control circuit control 6 is located the second and predetermines the position, the environment monitoring unit starts heptafluoropropane fire extinguishing systems 4 output fire extinguishing agent extremely equipment room 8 and close ventilation system 5 to carry out well intelligent monitoring and control fire-fighting equipment and ventilate or the switching of mode of putting out a fire, improve fire extinguishing systems's fire control effect and security.
Based on the above embodiment system, the present invention further provides some alternative embodiments, which are described below to better illustrate the concept of the present invention.
In a specific embodiment, the equipment room 8 is provided with a vent 9, an electric shutter is arranged at the vent 9, the electric shutter is linked with the heptafluoropropane fire extinguishing system 4, when the heptafluoropropane fire extinguishing system 4 is started, the electric shutter is switched to a first state to enable the vent 9 to be closed, and when the heptafluoropropane fire extinguishing system 4 is closed, the electric shutter is switched to a second state to enable the vent 9 to be opened.
Specifically, the electric shutter is switched between a first state and a second state, when the vent 9 is opened, the equipment room 8 can perform air circulation ventilation with the ventilation system 5, and when fire extinguishment is required, the vent 9 needs to be closed, so that the electric shutter is designed to cooperate with the ventilation system 5 and the heptafluoropropane fire extinguishing system 4 to realize the switching of the ventilation mode and the fire extinguishment mode of the whole fire protection ventilation system 5 in the embodiment.
It can be understood that the specific structure of the electric shutter may be various, the electric shutter is generally controlled by an electric driving system, and when the present embodiment is implemented, the heptafluoropropane fire extinguishing system 4 and the electric shutter can be linked only by inputting a corresponding control signal to the driving system of the electric shutter when the heptafluoropropane fire extinguishing system 4 is started or the heptafluoropropane fire extinguishing system 4 is closed.
As a general description, the driving system of the electric shutter consists of a motor, a rope winder and a mechanical stopper, all of which are installed in a C-shaped stainless steel bracket, and finally assembled with the shutter blades into a set of electric shutter final products. The assembled shutter system is installed in a double-layer glass curtain wall or a suspended ceiling according to the design requirement. The control mode of the system can adopt common line control switch control, wireless remote control, timing control, weather light control, building integrated control and the like, and can also be compatible and accessed into other BMS systems such as a lighting system, a security system and an immunity IB + system of the SOFMY.
In one embodiment, the control loop comprises a first coil 10 loop and a second coil 11 loop;
the first coil 10 loop comprises a first coil 10, a normally closed auxiliary contact of a fire detector K, a normally closed auxiliary contact of a second travel switch SP2 and a normally open auxiliary contact of a first travel switch SP1 which are sequentially connected through a lead;
the second coil 11 loop comprises a second coil 11, a normally open auxiliary contact of a fire detector K, a normally open auxiliary contact of a second travel switch SP2 and a normally closed auxiliary contact of a first travel switch SP1 which are sequentially connected through a lead;
the fire hazard detector K is used for receiving an excitation signal of the environment monitoring unit;
a first travel switch SP1 is arranged at a first preset position on the inner wall of the ventilation pipeline 1, and a second travel switch SP2 is arranged at a second preset position on the inner wall of the fire extinguishing pipeline 2;
the piston 7 is a magnet, is movably arranged in the electric three-way valve 6 and is positioned between the first preset position and the second preset position;
the first coil 10 is used for generating electricity to generate magnetic force to attract the piston 7 to move to a first preset position when the first coil 10 is closed in a loop, and the second coil 11 is used for generating electricity to generate magnetic force to attract the piston 7 to move to a second preset position when the second coil 11 is closed in a loop.
Specifically, the fire detector K is a relay coil, and when the fire detector K receives the excitation signal, the fire detector K is powered on, so that a normally open auxiliary contact of the fire detector K is closed, and a normally closed auxiliary contact is opened.
The first travel switch SP1 and the second travel switch SP2 are travel switches of the magnet in the process of traveling, after the magnet moves to the first preset position or the second preset position, the first travel switch SP1 or the second travel switch SP2 acts, a normally closed node of a coil loop is connected in series to be disconnected, a control loop is disconnected, and when a coil on the other side is electrified, the blocking magnet is pulled.
Under the normal fire-free state, the state of the blocking magnet of the electric three-way valve 6 is as shown in fig. 2, the first travel switch SP1 acts, the second travel switch SP2 does not act, the normally closed contact of the first travel switch SP1 connected to the second coil 11 loop is disconnected, the normally open contact of the second travel switch SP2 is disconnected, the normally open contact of the first travel switch SP1 connected to the first coil 10 loop is closed, the normally closed contact of the second travel switch SP2 is closed, the fire detector K does not act, the normally open contact of the fire detector K is disconnected, and the normally closed contact is closed, the magnet is located at a first preset position under the magnetic attraction of the first coil 10, the fire extinguishing passage is blocked by the magnet, and the equipment room 8 performs air exhaust and ventilation through the ventilation opening 9, the common pipe 3 and the ventilation system 5.
When a fire occurs, the fire detector K receives the excitation signal to act, so that the normally closed node connected in series with the first coil 10 loop or the second coil 11 loop is disconnected, the normally open node is closed, the first travel switch SP1 does not act, the second travel switch SP2 acts, the normally closed contact of the first travel switch SP1 connected to the second coil 11 loop is closed, the normally open contact of the second travel switch SP2 is closed, the normally open contact of the first travel switch SP1 connected to the first coil 10 loop is opened, the normally closed contact of the second travel switch SP2 is opened, the second coil 11 is electrified, the first coil 10 is de-electrified, the magnet of the electric three-way valve 6 is moved to the second preset position corresponding to the second travel switch SP2 under the action of magnetic force, as shown in fig. 3, the ventilation channel is blocked, the fire extinguishing channel is opened, the ventilation channel 5 is closed, and the electric shutter of the ventilation channel 9 is linked, the vent 9 is closed and the equipment chamber 8 forms a closed space. Meanwhile, the heptafluoropropane fire extinguishing system 4 is started, and a large amount of heptafluoropropane fire extinguishing agent enters the closed equipment room 8 to play a fire extinguishing role. When the fire is over, the fire hazard controller K does not act, so that the fire hazard controller K is connected in series with the normally closed nodes of the first coil 10 loop and the second coil 11 loop to be closed, the normally open nodes are disconnected, the first coil 10 is electrified, the second coil 11 is electrified, the plugging magnet moves leftwards, the position returns, the electric shutter of the ventilation opening 9 is linked, the ventilation opening 9 is opened, and the system is continuously in a normal ventilation mode.
In a specific embodiment, a slide rail is arranged in the electric three-way valve 6, and the magnet is movably arranged on the slide rail, and the slide rail is used for guiding the magnet to move transversely.
In one embodiment, the normally open auxiliary contact of the first travel switch SP1 and the normally open auxiliary contact of the second travel switch SP2 have a time delay opening function.
In a specific embodiment, the delay time of the first travel switch is set to be the time taken from the moment when the first travel switch is in the active state to the moment when the first travel switch is in the inactive state to the moment when the piston 7 moves to the first preset position; the delay time of the second travel switch is set to be the time taken from the moment when the second travel switch is in the non-operating state to the moment when the piston 7 moves to the second preset position.
In a specific embodiment, the tube wall of the ventilation duct 1 is provided with a third stroke switch, the tube wall of the fire extinguishing duct 2 is provided with a third stroke switch, the two third stroke switches are located between the first preset position and the second preset position, and the two third stroke switches are used for limiting the piston 7 when the piston 7 moves to the first preset position or the second preset position.
Specifically, the third travel switch SP is not connected to the control circuit, and only plays a limiting role after the blocking magnet is in place, so as to position the magnet and prevent the magnet from shaking left and right.
In a specific embodiment, the first, second and third travel switches are configured in a circular arc shape so that the magnet can smoothly pass through the first, second and third travel switches under a certain electromagnetic force. .
In a specific embodiment, the environment monitoring unit includes a temperature sensor, a temperature controller, a smoke sensor and a smoke controller, the temperature sensor is configured to detect a temperature signal in the equipment room 8, the smoke sensor is configured to detect a smoke concentration signal in the equipment room 8, the temperature controller is configured to determine whether there is a fire in the equipment room 8 according to the temperature signal, and the smoke controller is configured to determine whether there is a fire in the equipment room 8 according to the smoke concentration signal.
In a specific embodiment, fire protection and ventilation system 5 still includes alarm device, alarm device includes alarm and fire alarm receiving display, temperature controller is used for when judging first alarm signal is generated to the equipment room 8 when having the condition of a fire in, smoke controller is used for when judging second alarm signal is generated to the equipment room 8 when having the condition of a fire in, the alarm is used for the basis the external signal of pressing first alarm signal or second alarm signal reports to the police, fire alarm receiving display is used for the basis the external signal of pressing first alarm signal or second alarm signal carries out the condition of a fire alarm and shows.
Specifically, the alarm mode has audible and visual alarm and alarm bell prompt, the external pressing signal refers to that the worker manually presses the button to generate the pressing signal, the manual control mode belongs to, and when the worker observes a fire condition in a visual mode, the manual control mode can be controlled by pressing the button. In addition, the display content of the fire alarm display can be preset, and when the external pressing signal, the first alarm signal or the second alarm signal is received, the preset alarm content is displayed.
In a specific embodiment, the heptafluoropropane fire extinguishing system 4 comprises a gas fire extinguishing controller and a fire extinguishing execution mechanism, wherein the fire extinguishing controller is used for receiving the external pressing signal, the first alarm signal or the second alarm signal, and controlling the fire extinguishing execution mechanism to spray fire extinguishing agent according to the external pressing signal, the first alarm signal or the second alarm signal, and the fire extinguishing agent enters the equipment room 8 through the fire extinguishing channel.
Specifically, the fire extinguishing controller can control the fire extinguishing execution mechanism to spray fire extinguishing agent according to the external pressing signal, the first alarm signal or the second alarm signal, and a manual operation mode or an automatic operation mode is realized.
Referring to fig. 4, it can be understood that the fire extinguishing execution mechanism of the heptafluoropropane fire extinguishing system 4 can be various, which mainly embodies that heptafluoropropane is used as a fire extinguishing agent, and the present embodiment is not particularly limited to a specific one.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (9)
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| CN112797542B (en) * | 2021-01-04 | 2022-12-02 | 珠海格力电器股份有限公司 | Fire extinguishing device, control method and air conditioner |
| CN113314982B (en) * | 2021-07-31 | 2021-10-29 | 深圳市泓田电子有限公司 | Centralized layout type tiled power distribution system |
| CN116343427A (en) * | 2023-04-03 | 2023-06-27 | 宁波致安电子有限公司 | A smoke monitoring and alarm device |
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| CN105783172A (en) * | 2014-12-25 | 2016-07-20 | 宁夏万象汇通信息科技有限公司 | Self-extinguishing fresh air pipe network system |
| CN206081428U (en) * | 2016-09-20 | 2017-04-12 | 广州珠江数码集团股份有限公司 | Computer lab fire control air exchange system |
| CN209309392U (en) * | 2018-11-16 | 2019-08-27 | 宁国聚隆减速器有限公司 | A kind of switching valve module |
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| PL1930048T3 (en) * | 2006-12-08 | 2012-05-31 | Amrona Ag | Method and device for regulated feeding of supply air |
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| CN105783172A (en) * | 2014-12-25 | 2016-07-20 | 宁夏万象汇通信息科技有限公司 | Self-extinguishing fresh air pipe network system |
| CN206081428U (en) * | 2016-09-20 | 2017-04-12 | 广州珠江数码集团股份有限公司 | Computer lab fire control air exchange system |
| CN209309392U (en) * | 2018-11-16 | 2019-08-27 | 宁国聚隆减速器有限公司 | A kind of switching valve module |
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