CN112516490A - Automatic fire extinguishing device and power distribution cabinet - Google Patents
Automatic fire extinguishing device and power distribution cabinet Download PDFInfo
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- CN112516490A CN112516490A CN201910876344.1A CN201910876344A CN112516490A CN 112516490 A CN112516490 A CN 112516490A CN 201910876344 A CN201910876344 A CN 201910876344A CN 112516490 A CN112516490 A CN 112516490A
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- 239000003795 chemical substances by application Substances 0.000 claims abstract description 68
- 238000005507 spraying Methods 0.000 claims abstract description 10
- 239000007921 spray Substances 0.000 claims abstract description 7
- 230000005611 electricity Effects 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000007935 neutral effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000002265 prevention Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
-
- 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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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
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- Emergency Management (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention relates to an automatic fire extinguishing device and a power distribution cabinet, and belongs to the technical field of power distribution cabinet fire-fighting equipment. When the ambient temperature is higher than a first temperature threshold value, a first temperature control switch controls the first electromagnetic valve to be opened through a first relay, and the main line sprays the fire extinguishing agent outwards; when the ambient temperature is lower than the second temperature threshold value, the second temperature control switch controls the first electromagnetic valve to be closed through the first relay, and the general line stops spraying the fire extinguishing agent outwards. Therefore, the automatic fire extinguishing device and the power distribution cabinet provided by the invention can automatically react to the fire disaster of the power distribution cabinet and carry out fire extinguishing treatment, so that the fire preventing and extinguishing effect of the power distribution cabinet and the use safety of the power distribution cabinet are enhanced.
Description
Technical Field
The invention relates to an automatic fire extinguishing device and a power distribution cabinet, and belongs to the technical field of power distribution cabinet fire-fighting equipment.
Background
Fire extinguishers are generally provided in power distribution cabinets, and when a fire breaks out, a fire extinguishing process is performed by using the fire extinguishers.
The existing common fire extinguisher is a handheld fire extinguisher, the handheld fire extinguisher comprises a cylinder, a valve, a spraying hose and other components, fire extinguishing agents such as carbon dioxide or dry powder and the like are stored in the cylinder, when a fire disaster occurs, the fire extinguisher is held by a hand, the valve of the fire extinguisher is opened, then a nozzle part at the front end of the spraying hose is held, and the sprayed fire extinguishing agents are used for extinguishing the fire.
However, the handheld fire extinguisher cannot automatically respond to a fire and perform fire extinguishing treatment, and when the handheld fire extinguisher is used, people can find the fire in time, and if people do not find the fire in time, the fire can spread and expand, so that great loss is caused.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an automatic fire extinguishing device and a power distribution cabinet.
The invention provides an automatic fire extinguishing device, which comprises a first fire extinguishing agent storage device, a first electromagnetic valve, a first relay, a first temperature control switch and a second temperature control switch, wherein the first temperature control switch is connected with the first relay; the first fire extinguishing agent storage device is used for storing fire extinguishing agent, and the opening end of the first fire extinguishing agent storage device is connected with a general line; the first electromagnetic valve is connected to the main line and is a normally closed electromagnetic valve; the first relay is electrically connected with the first electromagnetic valve; the first temperature control switch and the second temperature control switch are respectively and electrically connected with the first relay; a first temperature threshold value is set in the first temperature control switch, a second temperature threshold value is set in the second temperature control switch, and the second temperature threshold value is smaller than the first temperature threshold value; when the ambient temperature is higher than the first temperature threshold value, the first temperature control switch controls the first electromagnetic valve to be opened through the first relay, and the main line sprays fire extinguishing agent outwards; when the ambient temperature is lower than the second temperature threshold value, the second temperature control switch controls the first electromagnetic valve to be closed through the first relay, and the general line stops spraying the fire extinguishing agent outwards; the first temperature control switch, the second temperature control switch and the outlet end of the main line are arranged in the power distribution cabinet.
As one of the optional technical schemes, the automatic fire extinguishing device provided by the invention further comprises a second fire extinguishing agent storage, a second electromagnetic valve, a second relay and a first pressure switch; the second fire extinguishing agent storage device is connected to the main line through a second electromagnetic valve, and the second electromagnetic valve is a normally closed electromagnetic valve; the first pressure switch is connected to the main line, the first pressure switch is used for monitoring the pressure of the main line, and the first pressure switch is provided with a first pressure threshold value; the first pressure switch is electrically connected with the second relay, and the second relay is electrically connected with the second electromagnetic valve; when the pressure value of the general line is lower than the first pressure threshold value, the first pressure switch controls the second electromagnetic valve to be opened through the second relay, and the fire extinguishing agent in the second fire extinguishing agent storage device enters the general line.
As one of the selectable technical schemes, the automatic fire extinguishing device further comprises a circuit bus, wherein the circuit bus comprises a zero line and a live line; the first end of the second electromagnetic valve is electrically connected to the zero line, and the second end of the second electromagnetic valve is electrically connected to the live line through the second relay; the first end of the first pressure switch is electrically connected to the live wire, the second end of the first pressure switch is electrically connected to the first signal input end of the second relay, and the second signal input end of the second relay is electrically connected to the zero wire.
As one of the optional technical solutions of the present invention, a first end of the first electromagnetic valve is electrically connected to the zero line, and a second end of the first electromagnetic valve is electrically connected to the live line through the first relay; the first end of the first temperature control switch and the first end of the second temperature control switch are respectively electrically connected to the live wire, the second end of the first temperature control switch is electrically connected to the first signal input end of the first relay, the second end of the second temperature control switch is electrically connected to the second signal input end of the first relay, and the third signal input end of the first relay is electrically connected to the zero wire.
As one of the optional technical schemes, the automatic fire extinguishing device provided by the invention further comprises a third relay and an alarm; the first end of the alarm is electrically connected to the zero line, and the second end of the alarm is electrically connected to the power output end of the first relay through a third relay; a first signal input end of the third relay is electrically connected to the zero line; and a second signal input end of the third relay is electrically connected to the live wire through a third normally-open button.
As one of the selectable technical schemes, the automatic fire extinguishing device provided by the invention further comprises a first normally open button and a second normally open button; the first normally open button is connected with the first temperature control switch in parallel, and the second normally open button is connected with the second temperature control switch in parallel.
As one of the optional technical schemes, the automatic fire extinguishing device provided by the invention further comprises a first circuit breaker and a second circuit breaker; the first circuit breaker is arranged on the live wire, and the first pressure switch and the second relay are electrically connected to the live wire through the first circuit breaker respectively; the power input end of the first relay, the first end of the first temperature control switch and the first end of the second temperature control switch are electrically connected to the live wire through the second circuit breaker respectively.
As one of the optional technical schemes, the automatic fire extinguishing device further comprises a safety valve, a first three-way control valve and a leakage circuit breaker; the safety valve is connected to the main line; the first end of the first three-way control valve is connected to the main line, the second end of the first three-way control valve is connected with a first pressure switch, and the third end of the first three-way control valve is vacant; the zero line and the live wire are electrically connected to the residual current circuit breaker.
As one of the optional technical solutions of the present invention, the outlet end of the trunk line is connected with a plurality of branch pipelines, and each branch pipeline is connected with a horn nozzle.
In addition, the invention also provides a power distribution cabinet, which comprises: cabinet body and automatic fire extinguishing device as above.
According to the automatic fire extinguishing device and the power distribution cabinet, the open end of the first fire extinguishing agent storage device is connected to the main line, the main line is connected with the first electromagnetic valve, when the ambient temperature is higher than a first temperature threshold value, the first temperature control switch controls the first electromagnetic valve to be opened through the first relay, and the main line sprays the fire extinguishing agent outwards; when the ambient temperature is lower than the second temperature threshold value, the second temperature control switch controls the first electromagnetic valve to be closed through the first relay, and the general line stops spraying the fire extinguishing agent outwards. Therefore, the automatic fire extinguishing device and the power distribution cabinet provided by the invention can automatically react to the fire disaster of the power distribution cabinet and carry out fire extinguishing treatment, so that the fire preventing and extinguishing effect of the power distribution cabinet and the use safety of the power distribution cabinet are enhanced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a first structural schematic diagram of an automatic fire extinguishing apparatus provided in the embodiment;
fig. 2 is a second structural schematic diagram of the automatic fire extinguishing apparatus provided in the embodiment;
FIG. 3 is a schematic diagram of a first control circuit of the automatic fire extinguishing apparatus according to the present embodiment;
FIG. 4 is a schematic diagram of a second control circuit of the automatic fire extinguishing apparatus according to the present embodiment;
FIG. 5 is a schematic diagram of a third control circuit of the automatic fire extinguishing apparatus according to the present embodiment;
fig. 6 is a schematic diagram of a fourth control circuit of the automatic fire extinguishing apparatus according to the present embodiment.
Description of reference numerals:
101-a first fire suppressant reservoir;
102-a second fire suppressant reservoir;
103-a third fire suppressant reservoir;
2-a third electromagnetic valve;
3-a second solenoid valve;
4-a second pressure switch;
5-a first pressure switch;
61-a first three-way control valve;
62-a second three-way control valve;
7-a first solenoid valve;
8-horn nozzle;
9-a second temperature control switch;
10-a first temperature control switch;
11-general route;
12-branch lines;
13-a safety valve;
14-a power distribution cabinet;
15-earth leakage circuit breaker;
161-a first circuit breaker;
162-a second circuit breaker;
17-a fourth relay;
18-a second relay;
19-a first relay;
20-a first normally open button;
21-a second normally open button;
22-a third relay;
23-an alarm;
24-a third normally open button;
an N-zero line;
an L-fire line.
With the above figures, certain embodiments of the invention have been illustrated and described in more detail below. The drawings and the description are not intended to limit the scope of the inventive concept in any way, but rather to illustrate it by those skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
The terms "upper" and "lower" are used for describing relative positions of the structures in the drawings, and are only for the sake of clarity, but not for limiting the scope of the present invention, and the relative relationship changes or adjustments are also considered to be within the scope of the present invention without substantial technical changes.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In addition, in the present invention, unless otherwise explicitly specified or limited, terms such as "mounted," "connected," "fixed," and the like shall be broadly construed, and for example, may be fixedly connected, detachably connected, or integrated; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Fire extinguishers are generally provided in power distribution cabinets, and when a fire breaks out, a fire extinguishing process is performed by using the fire extinguishers.
The existing common fire extinguisher is a handheld fire extinguisher, the handheld fire extinguisher comprises a cylinder, a valve, a spraying hose and other components, fire extinguishing agents such as carbon dioxide or dry powder and the like are stored in the cylinder, when a fire disaster occurs, the fire extinguisher is held by a hand, the valve of the fire extinguisher is opened, then a nozzle part at the front end of the spraying hose is held, and the sprayed fire extinguishing agents are used for extinguishing the fire.
However, the handheld fire extinguisher cannot automatically respond to a fire and perform fire extinguishing treatment, and when the handheld fire extinguisher is used, people can find the fire in time, and if people do not find the fire in time, the fire can spread and expand, so that great loss is caused.
In order to solve the above-mentioned technical problem that the fire extinguisher that the switch board used among the prior art exists, this embodiment provides an automatic fire extinguishing device and switch board. The automatic fire extinguishing apparatus provided by the present embodiment is exemplarily described below in terms of kinds of devices, connections between devices, and the like, so that a person skilled in the art can clearly and completely understand the technical solutions provided by the present embodiment and can easily implement the technical solutions on the basis of understanding.
As shown in fig. 1, 2, 3, 4, 5 and 6, the automatic fire extinguishing apparatus according to the present embodiment includes a first fire extinguishing agent reservoir 101, a first solenoid valve 7, a first relay 19, and a first temperature control switch 10 and a second temperature control switch 9; a fire extinguishing agent is stored in the first fire extinguishing agent storage 101, and the open end of the first fire extinguishing agent storage 101 is connected with the manifold line 11; the first electromagnetic valve 7 is connected to the general line 11, and the first electromagnetic valve 7 is a normally closed electromagnetic valve; the first relay 19 is electrically connected with the first electromagnetic valve 7; the first temperature control switch 10 and the second temperature control switch 9 are respectively electrically connected with a first relay 19; a first temperature threshold value is set on the first temperature control switch 10, a second temperature threshold value is set on the second temperature control switch 9, and the second temperature threshold value is smaller than the first temperature threshold value; when the ambient temperature is higher than a first temperature threshold value, the first temperature control switch 10 controls the first electromagnetic valve 7 to be opened through the first relay 19, and the main line 11 sprays the fire extinguishing agent outwards; when the ambient temperature is lower than the second temperature threshold value, the second temperature control switch 9 controls the first electromagnetic valve 7 to be closed through the first relay 19, and the general line 11 stops spraying the fire extinguishing agent outwards; the first temperature control switch 10 and the second temperature control switch 9 as well as the outlet end of the bus line 11 are arranged in a switch cabinet 14.
Illustratively, the main line 11 refers to a pipeline through which the fire extinguishing agent flows, one end of the main line 11 is connected to an open end of the first fire extinguishing agent reservoir 101, and the other end of the main line 11 is opened and closed by the first solenoid valve 7. The exit ends of the first temperature control switch 10, the second temperature control switch 9 and the bus line 11 are arranged in the power distribution cabinet 14, so that the first temperature control switch 10 and the second temperature control switch 9 can monitor the temperature in the power distribution cabinet 14 for a long time, and the first electromagnetic valve 7 is controlled to be opened and closed through the first relay 19, and the automatic fire prevention and extinguishing function of the power distribution cabinet 14 is achieved. Wherein, the fire extinguishing agent can be carbon dioxide or dry powder and the like.
According to the automatic fire extinguishing device provided by the embodiment, the open end of the first fire extinguishing agent storage 101 is connected to the main line 11, the first electromagnetic valve 7 is connected to the main line 11, when the ambient temperature is higher than the first temperature threshold value, the first temperature control switch 10 controls the first electromagnetic valve 7 to be opened through the first relay 19, and the main line 11 sprays the fire extinguishing agent outwards; when the ambient temperature is lower than the second temperature threshold value, the second temperature control switch 9 controls the first electromagnetic valve 7 to be closed through the first relay 19, and the general line 11 stops the fire extinguishing agent from being sprayed outwards. Therefore, this embodiment provides an automatic fire extinguishing device can react and put out a fire to the conflagration automation that switch board 14 took place to the security that switch board 14's fire prevention and fire control's effect and switch board 14 used has been strengthened.
As shown in fig. 2, 3 and 4, as one of the alternative embodiments of the present embodiment, the automatic fire extinguishing apparatus provided by the present embodiment further includes a second fire extinguishing agent reservoir 102, a second solenoid valve 3, a second relay 18 and a first pressure switch 5; the second fire extinguishing agent storage 102 is connected to the general line 11 through a second electromagnetic valve 3, and the second electromagnetic valve 3 is a normally closed electromagnetic valve; the first pressure switch 5 is connected to the bus line 11, the first pressure switch 5 is used for monitoring the pressure of the bus line 11, and the first pressure switch 5 is provided with a first pressure threshold value; the first pressure switch 5 is electrically connected with a second relay 18, and the second relay 18 is electrically connected with the second electromagnetic valve 3; when the pressure value of the main line 11 is lower than the first pressure threshold value, the first pressure switch 5 controls the second electromagnetic valve 3 to be opened through the second relay 18, and the fire extinguishing agent in the second fire extinguishing agent storage 102 enters the main line 11.
For example, in order to ensure that the amount of fire extinguishing agent in the automatic fire extinguishing apparatus provided by the present embodiment is sufficient, the automatic fire extinguishing apparatus provided by the present embodiment may further include a second fire extinguishing agent reservoir 102 and a third fire extinguishing agent reservoir 103.
In this embodiment, the working process of the second fire extinguishing agent storage 102 is taken as an example for explanation, the outlet end of the second fire extinguisher is connected with the second electromagnetic valve 3, the second electromagnetic valve 3 is a normally closed electromagnetic valve, that is, the second electromagnetic valve 3 is in a closed state under normal conditions, so that the working performance of the automatic fire extinguishing apparatus provided by this embodiment can be prevented from being influenced by the excessive pressure of the main line 11 due to the fact that a plurality of fire extinguishing agent storage devices are simultaneously connected to the main line 11.
When the first pressure switch 5 detects that the pressure value in the main line 11 is smaller than the first pressure threshold value, the first pressure switch 5 opens the second solenoid valve 3 via the second relay 18, so that the fire extinguishing agent in the second fire extinguishing agent reservoir 102 enters the main line 11. The set value of the first pressure threshold value may be referenced to a pressure value that enables the fire suppressant to be normally sprayed from the outlet end of the main line 11.
When a plurality of fire extinguishing agent containers are provided in this embodiment, it is necessary to form passages with the trunk line 11 in stages from one fire extinguishing agent container to another. At this time, the electromagnetic valves corresponding to different fire extinguishing agent reservoirs can be controlled by different pressure switches, the pressure threshold value set by each pressure switch is different, and the opening sequence of the corresponding electromagnetic valve controlled by the pressure switch is the same as the decreasing sequence of the pressure threshold value of the pressure switch.
As shown in fig. 2 and 4, the third fire extinguishing agent reservoir 103 is connected to the bus line 11 through a third electromagnetic valve 2, the third electromagnetic valve 2 being a normally closed type electromagnetic valve; the second pressure switch 4 is connected to the bus line 11, the second pressure switch 4 is used for monitoring the pressure of the bus line 11, and the second pressure switch 4 is provided with a second pressure threshold value, wherein the second pressure threshold value is smaller than the first pressure threshold value; the second pressure switch 4 is electrically connected with a fourth relay 17, and the fourth relay 17 is electrically connected with the third electromagnetic valve 2; when the pressure value of the main line 11 is lower than the second pressure threshold value, the second pressure switch 4 controls the third electromagnetic valve 2 to be opened through the fourth relay 17, and the fire extinguishing agent in the third fire extinguishing agent storage container 103 enters the main line 11. Since the second pressure threshold is smaller than the first pressure threshold, the second fire-extinguishing agent reservoir is opened first, and the third fire-extinguishing agent reservoir 103 is opened only when the fire-extinguishing agent in the second fire-extinguishing agent reservoir 102 is running out of use, i.e. when the pressure in the general line 11 is smaller than the second pressure threshold.
As shown in fig. 3, as one of the optional embodiments of this embodiment, the automatic fire extinguishing apparatus provided in this embodiment further includes a circuit bus, where the circuit bus includes a zero line N and a live line L; a first end of the second electromagnetic valve 3 is electrically connected to the zero line N, and a second end of the second electromagnetic valve 3 is electrically connected to the live line L through a second relay 18; the first end of the first pressure switch 5 is electrically connected to the live line L, the second end of the first pressure switch 5 is electrically connected to the first signal input end of the second relay 18, and the second signal input end of the second relay 18 is electrically connected to the neutral line N.
By way of example, the first signal input of the second relay 18 and the second signal input of the second relay 18 refer to the terminals of the coil of the relay. When the pressure value in the bus line 11 is smaller than the first pressure threshold value of the first pressure switch 5, the first pressure switch 5 connects the coil of the second relay 18 with the neutral line N, and the second relay 18 acts, so that the second relay 18 opens the second solenoid valve 3.
As shown in fig. 5, as one of alternative embodiments of the present embodiment, a first end of the first electromagnetic valve 7 is electrically connected to the neutral line N, and a second end of the first electromagnetic valve 7 is electrically connected to the live line L through a first relay 19; the first end of the first temperature control switch 10 and the first end of the second temperature control switch 9 are respectively electrically connected to the live wire L, the second end of the first temperature control switch 10 is electrically connected to the first signal input end of the first relay 19, the second end of the second temperature control switch 9 is electrically connected to the second signal input end of the first relay 19, and the third signal input end of the first relay 19 is electrically connected to the neutral wire N.
Illustratively, when the ambient temperature is greater than the first temperature threshold, the first temperature control switch 10 is closed, so that the first relay 19 is actuated, the first relay 19 switches on the power supply of the first electromagnetic valve 7, the first electromagnetic valve 7 is opened, and the main line 11 sprays the fire extinguishing agent outwards; when the ambient temperature is lower than the second temperature threshold, the second temperature control switch 9 is closed, so that the first relay 19 acts in the opposite direction to the previous action, the first relay 19 disconnects the power supply of the first electromagnetic valve 7, the first electromagnetic valve 7 is closed, and the general line 11 stops spraying the fire extinguishing agent outwards.
As shown in fig. 6, as one of alternative embodiments of the present embodiment, the automatic fire extinguishing apparatus provided by the present embodiment further includes a third relay 22 and an alarm 23; a first end of the alarm 23 is electrically connected to the zero line N, and a second end of the alarm 23 is electrically connected to the power output end of the first relay 19 through the third relay 22; a first signal input end of the third relay 22 is electrically connected to the zero line N; a second signal input terminal of the third relay 22 is electrically connected to the live line L through a third normally open button 24.
Illustratively, in order to remind people of fire, the automatic fire extinguishing apparatus provided in this embodiment is further provided with an alarm 23.
When the first relay 19 is closed, the third relay 22 is also closed, and the electricity of the neutral line N is supplied to the alarm 23, so that the alarm 23 sounds. If the alarm device 23 is to be turned off when a fire is not extinguished, the third normally open button 24 is merely closed, and the alarm device 23 is closed by the reverse operation of the third relay 22.
As shown in fig. 5, as one of alternative embodiments of the present embodiment, the automatic fire extinguishing apparatus provided by the present embodiment further includes a first normally open button 20, a second normally open button 21; the first normally open button 20 is connected with the first temperature control switch 10 in parallel, and the second normally open button 21 is connected with the second temperature control switch 9 in parallel.
For example, in the case where a fire does not occur, the automatic fire extinguishing apparatus of the present embodiment may be subjected to a circuit test by operating the first and second normally open buttons 20 and 21. When the first normally open button 20 is closed, the effect is that when the ambient temperature exceeds a first temperature threshold, the first temperature control switch 10 is closed; the closing of the second normally open button 21 is equivalent to the closing of the second temperature control switch 9 when the ambient temperature is lower than the second temperature threshold. And then whether the circuit of controlling the first electromagnetic valve 7 is normal can be tested, thereby ensuring that the automatic fire extinguishing device of the embodiment can be normally used.
As shown in fig. 6, as one of alternative embodiments of the present embodiment, the automatic fire extinguishing apparatus provided by the present embodiment further includes a first circuit breaker 161 and a second circuit breaker 162; the first circuit breaker 161 is arranged on the live wire L, and the first pressure switch 5 and the second relay 18 are respectively and electrically connected on the live wire L through the first circuit breaker 161; the power input terminal of the first relay 19, the first terminal of the first temperature control switch 10, and the first terminal of the second temperature control switch 9 are electrically connected to the live line L through the second breaker 162, respectively.
Illustratively, the first circuit breaker 161 is used for switching on and off the power supply of the control circuit of the second solenoid valve 3 and the third solenoid valve 2; the second circuit breaker 162 is used to turn on or off the power supply to the control circuit of the first solenoid valve 7.
As shown in fig. 6, as one of the optional embodiments of the present embodiment, the automatic fire extinguishing apparatus provided by the present embodiment further includes a safety valve 13, a first three-way control valve 61, and an earth leakage breaker 15; the safety valve 13 is connected to the bus line 11; a first end of the first three-way control valve 61 is connected to the main line 11, a second end of the first three-way control valve 61 is connected with the first pressure switch 5, and a third end of the first three-way control valve 61 is vacant; the neutral wire N and the live wire L are electrically connected to the earth leakage breaker 15.
Illustratively, the safety valve 13 is used for pressure relief when the pressure is too high due to blockage of the bus line 11, so as to avoid causing safety accidents. When the first pressure switch 5 works normally, the first three-way control valve 61 conducts one end connected with the first pressure switch 5 and one end connected with the main line 11, and closes the vacant end; when the first pressure switch 5 is replaced, the first three-way control valve 61 conducts the end connected with the first pressure switch 5 and the vacant end and closes the end connected with the connection bus line 11, so as to prevent the fire extinguishing agent from leaking when the first pressure switch 5 is replaced. When the automatic fire extinguishing apparatus provided by this embodiment is further provided with the second pressure switch 4 and the third fire extinguishing agent reservoir 103, the first end of the second three-way control valve 62 is connected to the main line 11, the second end of the second three-way control valve 62 is connected to the second pressure switch 4, the third end of the second three-way control valve 62 is vacant, and the function of the second three-way control valve 62 is similar to that of the second three-way control valve 62, and is not described herein again.
As shown in fig. 2, as one of alternative embodiments of the present embodiment, a plurality of branch pipes 12 are connected to the outlet end of the trunk line 11, and a trumpet nozzle 8 is connected to each branch pipe 12.
Illustratively, when there are a plurality of independent areas in the distribution cabinet 14, a plurality of branch pipes 12 are connected to the outlet end of the main line 11 to satisfy the fire extinguishing process for different areas.
A trumpet nozzle 8 is connected to each branch pipe 12, so that the sprayed fire extinguishing agent can be sprayed in the opening direction of the trumpet nozzle 8.
In addition, this embodiment also provides a switch board 14, includes: cabinet body and automatic fire extinguishing device as above.
Exemplarily, the automatic fire extinguishing apparatus that this embodiment provided can load into the switch board 14 when the switch board is produced the equipment promptly, form the switch board that has the automatic function of putting out a fire.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. An automatic fire extinguishing device is characterized in that:
comprises a first fire extinguishing agent storage device (101), a first electromagnetic valve (7), a first relay (19), a first temperature control switch (10) and a second temperature control switch (9);
a fire extinguishing agent is stored in the first fire extinguishing agent storage container (101), and the open end of the first fire extinguishing agent storage container (101) is connected with a general line (11); the first electromagnetic valve (7) is connected to the general line (11), and the first electromagnetic valve (7) is a normally closed electromagnetic valve; the first relay (19) is electrically connected with the first electromagnetic valve (7); the first temperature control switch (10) and the second temperature control switch (9) are respectively electrically connected with the first relay (19); a first temperature threshold value is set in the first temperature control switch (10), a second temperature threshold value is set in the second temperature control switch (9), and the second temperature threshold value is smaller than the first temperature threshold value;
when the ambient temperature is higher than the first temperature threshold value, the first temperature control switch (10) controls the first electromagnetic valve (7) to be opened through the first relay (19), and the general line (11) sprays fire extinguishing agent outwards; when the ambient temperature is lower than the second temperature threshold value, the second temperature control switch (9) controls the first electromagnetic valve (7) to be closed through the first relay (19), and the general line (11) stops spraying the fire extinguishing agent outwards;
the first temperature control switch (10), the second temperature control switch (9) and the outlet end of the main line (11) are arranged in the power distribution cabinet.
2. The automatic fire extinguishing apparatus according to claim 1, wherein:
the fire extinguishing agent storage device further comprises a second fire extinguishing agent storage device (102), a second electromagnetic valve (3), a second relay (18) and a first pressure switch (5);
the second fire extinguishing agent storage container (102) is connected to the general line (11) through the second electromagnetic valve (3), and the second electromagnetic valve (3) is a normally closed electromagnetic valve;
the first pressure switch (5) is connected to the bus line (11), the first pressure switch (5) is used for monitoring the pressure of the bus line (11), and the first pressure switch (5) is provided with a first pressure threshold value;
the first pressure switch (5) is electrically connected with the second relay (18), and the second relay (18) is electrically connected with the second electromagnetic valve (3);
when the pressure value of the general line (11) is lower than the first pressure threshold value, the first pressure switch (5) controls the second electromagnetic valve (3) to be opened through the second relay (18), and the fire extinguishing agent in the second fire extinguishing agent storage container (102) enters the general line (11).
3. The automatic fire extinguishing apparatus according to claim 2, wherein:
the circuit bus comprises a zero line (N) and a live line (L);
a first end of the second electromagnetic valve (3) is electrically connected to the zero line (N), and a second end of the second electromagnetic valve (3) is electrically connected to the live line (L) through the second relay (18); the first end of the first pressure switch (5) is electrically connected to the live wire (L), the second end of the first pressure switch (5) is electrically connected to the first signal input end of the second relay (18), and the second signal input end of the second relay (18) is electrically connected to the zero wire (N).
4. The automatic fire extinguishing apparatus according to claim 3, wherein:
a first end of the first electromagnetic valve (7) is electrically connected to the zero line (N), and a second end of the first electromagnetic valve (7) is electrically connected to the live line (L) through the first relay (19);
the first end of first temperature control switch (10) with the first end difference electric connection of second temperature control switch (9) is in on live wire (L), the second end electricity of first temperature control switch (10) is in on the first signal input end of first relay (19), the second end electricity of second temperature control switch (9) is in on the second signal input end of first relay (19), the third signal input end electricity of first relay (19) is connected on zero line (N).
5. The automatic fire extinguishing apparatus according to claim 4, wherein:
the device also comprises a third relay (22) and an alarm (23);
the first end of the alarm (23) is electrically connected to the zero line (N), and the second end of the alarm (23) is electrically connected to the power output end of the first relay (19) through a third relay (22); a first signal input end of the third relay (22) is electrically connected to the zero line (N); and a second signal input end of the third relay (22) is electrically connected to the live wire (L) through a third normally-open button (24).
6. The automatic fire extinguishing apparatus according to claim 5, wherein:
the button switch also comprises a first normally open button (20) and a second normally open button (21);
the first normally open button (20) is connected with the first temperature control switch (10) in parallel, and the second normally open button (21) is connected with the second temperature control switch (9) in parallel.
7. The automatic fire extinguishing apparatus according to claim 4, wherein:
further comprising a first circuit breaker (161) and a second circuit breaker (162);
the first circuit breaker (161) is arranged on the live wire (L), and the first pressure switch (5) and the second relay (18) are electrically connected on the live wire (L) through the first circuit breaker (161);
the power input end of the first relay (19), the first end of the first temperature control switch (10) and the first end of the second temperature control switch (9) are electrically connected to the live wire (L) through the second circuit breaker (162) respectively.
8. The automatic fire extinguishing apparatus according to claim 3, wherein:
the safety valve (13), the first three-way control valve (61) and the residual current circuit breaker (15) are further included;
the safety valve (13) is connected to the main line (11);
a first end of the first three-way control valve (61) is connected to the main line (11), a second end of the first three-way control valve (61) is connected with a first pressure switch (5), and a third end of the first three-way control valve (61) is vacant;
and the zero line (N) and the live line (L) are electrically connected on the residual current circuit breaker (15).
9. The automatic fire extinguishing apparatus according to claim 2, wherein:
the outlet end of the general line (11) is connected with a plurality of branch lines (12), and each branch line is connected with a horn nozzle (8).
10. A power distribution cabinet, characterized by comprising:
a cabinet and an automatic fire extinguishing apparatus as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910876344.1A CN112516490A (en) | 2019-09-17 | 2019-09-17 | Automatic fire extinguishing device and power distribution cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910876344.1A CN112516490A (en) | 2019-09-17 | 2019-09-17 | Automatic fire extinguishing device and power distribution cabinet |
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| Publication Number | Publication Date |
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| CN112516490A true CN112516490A (en) | 2021-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910876344.1A Pending CN112516490A (en) | 2019-09-17 | 2019-09-17 | Automatic fire extinguishing device and power distribution cabinet |
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| Country | Link |
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| CN (1) | CN112516490A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023109225A1 (en) * | 2021-12-15 | 2023-06-22 | 中铁一局集团有限公司 | Automatic fire extinguishing and shutdown system and method for large-scale device for foundation engineering |
-
2019
- 2019-09-17 CN CN201910876344.1A patent/CN112516490A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023109225A1 (en) * | 2021-12-15 | 2023-06-22 | 中铁一局集团有限公司 | Automatic fire extinguishing and shutdown system and method for large-scale device for foundation engineering |
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