CN209728986U - A kind of automatic fire alarm system - Google Patents

Abstract

The utility model discloses a kind of automatic fire alarm system, including fire detector, level switch, PLC controller, water supply pump, suction pump, spraying electromagnetic valve and water storage box, fire detector, level switch, water supply pump, suction pump, spraying electromagnetic valve is connect with PLC controller respectively, level switch includes upper level switch and lower level switch, upper level switch and lower level switch are connect with PLC controller, upper level switch and lower level switch are all set on the inner wall of the water storage box, upper level switch is set to the top of lower level switch, water supply pump and suction pump with water storage box piping connection, spraying electromagnetic valve and the suction pump piping connection.The utility model provides a kind of automatic fire alarm system, and this system can automatically be monitored the environment of surrounding, when monitoring that fire condition, system will automatically control water spray, to ensure the safety of life and property of people well.

Description

A fire automatic alarm system

technical field

The utility model relates to the field of fire safety production.

Background technique

Fire is a sudden disaster phenomenon with strong destructive power, which seriously endangers people's lives and property safety. In enterprises, factories, warehouses and other places, because no one can detect and extinguish the fire in time when the staff is off duty, once a fire occurs, the consequences are often disastrous.

Utility model content

The purpose of this utility model is to at least solve one of the technical problems in the prior art, and provide an automatic fire alarm system, which can automatically monitor the surrounding environment. When a fire situation is detected, the system will automatically control the Spray water, so as to well protect people's lives and property safety.

The technical solution adopted by the utility model to solve its problem is:

The utility model provides an automatic fire alarm system, comprising a fire detector, a water level detector, a PLC controller, a water supply pump, a water pump, a spray solenoid valve and a water storage tank, the fire detector, the water level detector device, the water supply pump, the water pump, and the spray solenoid valve are respectively connected to the PLC controller, and the water level detector includes an upper water level detector and a lower water level detector, and the upper water level detector and The lower water level detectors are all connected to the PLC controller, the upper water level detector and the lower water level detector are both arranged on the inner wall of the water storage tank, and the upper water level detector is arranged on the Above the water level detector, both the water supply pump and the water suction pump are connected to the pipeline of the water storage tank, and the spray solenoid valve is connected to the pipeline of the water suction pump.

Further, the fire detector includes a smoke detector and a heat detector, both of which are connected to the PLC controller.

Further, a manual alarm button is also included, and the manual alarm button is connected with the PLC controller.

Further, a monitoring terminal is also included, and the monitoring terminal is connected with the PLC controller.

Further, a fire alarm bell is also included, and the fire alarm bell is connected with the PLC controller.

Further, the inner wall of the water storage tank is provided with a water inlet and a water outlet, and both the water outlet and the water inlet are located below the lower water level detector; a water inlet pipe and a water outlet pipe are also included, and the water supply pump 1. The water inlet pipe is connected to the water inlet in sequence, and the water outlet, the water outlet pipe and the water pump are connected in sequence.

The embodiment of the utility model has the following beneficial effects: the fire detector can monitor the surrounding environment, not only can monitor whether there is smoke, but also can monitor whether the temperature of the surrounding environment is abnormal; When the temperature is abnormal, the fire detector can transmit the detected fire signal to the PLC controller, and then the PLC controller controls the pump to work to extract the water in the water storage tank; then the PLC controller controls the spray The sprinkler solenoid valve is opened, and then the sprinkler head connected to the spray solenoid valve will spray water, and then achieve the effect of extinguishing the fire; the system uses the water storage tank to store water for fire fighting at ordinary times, and the inner wall of the water storage tank An upper water level detector and a lower water level detector are provided. When the water level in the water storage tank reaches the position of the upper water level detector, the upper water level detector will send an anti-overflow detection signal to the PLC controller, and then the PLC controller will It will control the water supply pump to stop working to prevent the water storage tank from overflowing due to too much water; when the water level of the water storage tank reaches the position of the lower water level detector, the lower water level detector will send a message to the PLC controller. Water supply request signal, then the PLC controller will control the water supply pump to turn on again, and carry out water supply treatment to the water storage tank again, so that there is enough water in the water storage tank to put out the fire.

Description of drawings

Below in conjunction with accompanying drawing and example the utility model is described further.

Fig. 1 is a schematic diagram of an automatic fire alarm system provided by an embodiment of the present invention;

Fig. 2 is a schematic diagram of the connection of the water storage tank of an automatic fire alarm system provided by the embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

It should be noted that, if there is no conflict, each feature in the embodiment of the utility model can be combined with each other, and all of them are within the protection scope of the utility model. In addition, although the functional modules are divided in the schematic diagram of the device, and the logical order is shown in the flowchart, in some cases, the division of modules in the device or the sequence shown in the flowchart can be performed in different ways. or the steps described.

Fire is a sudden disaster phenomenon with strong destructive power, which seriously endangers people's lives and property safety. In enterprises, factories, warehouses and other places, because no one can detect and extinguish the fire in time when the staff is off duty, once a fire occurs, the consequences are often disastrous.

Based on this, the utility model provides an automatic fire alarm system. This system can automatically monitor the surrounding environment. Property security.

Below in conjunction with accompanying drawing, the utility model embodiment is described further.

Referring to Figures 1-2, the embodiment of the utility model provides an automatic fire alarm system, including a fire detector 1, a water level detector 2, a PLC controller 3, a water supply pump 4, a water pump 5, a spray solenoid valve 7 and The water storage tank 10, the fire detector 1, the water level detector 2, the water supply pump 4, the suction pump 5, and the spray solenoid valve 7 are respectively connected with the PLC controller 3, and the water level detector 2 includes an upper water level detector 21 and a lower water level detector device 22, the upper water level detector 21 and the lower water level detector 22 are all connected with the PLC controller 3, the upper water level detector 21 and the lower water level detector 22 are all arranged on the inner wall of the water storage tank 10, and the upper water level detector 21 is set Above the lower water level detector 22, the water supply pump 4 and the suction pump 5 are connected to the pipeline of the water storage tank 10, and the spray solenoid valve 7 is connected to the pipeline of the suction pump 5. The fire detector 1 can monitor the surrounding environment, for example, it can monitor whether there is smoke, and it can also monitor whether the temperature of the surrounding environment is abnormal; The detected fire signal can be transmitted to the PLC controller 3, and then the PLC controller 3 controls the water pump 5 to work to extract the water in the water storage tank 10; then the PLC controller 3 controls the spray solenoid valve 7 to open , and then the spray nozzle connected with the spray solenoid valve 7 will spray water, and then achieve the effect of extinguishing the fire; in the system, the water storage tank 10 is used to store water for fire fighting at ordinary times, and the inner wall of the water storage tank 10 is set There is an upper water level detector 21 and a lower water level detector 22. When the water level in the water storage tank 10 reaches the position of the upper water level detector 21, the upper water level detector 21 will send an anti-overflow detection signal to the PLC controller 3, Then the PLC controller 3 will control the water supply pump 4 to stop working, preventing the water storage tank 10 from overflowing due to too much water in the adornment; The water level detector 21 will send a water supply request signal to the PLC controller 3, and then the PLC controller 3 will control the water supply pump 4 to restart, and carry out the water supply process to the water storage tank 10 again, so that there is enough water in the water storage tank 10. of water to extinguish the fire.

Wherein, in this embodiment, PLC controller 3 is FX2NC PLC, and FX2NC PLC is the main series of Mitsubishi PLC, this PLC has the characteristics of miniaturization, high operating speed, stable performance, etc., and is very suitable for the PLC of the embodiment of the present application control requirements. Both the upper water level detector 21 and the lower water level detector 22 can be water level probe sensors. Send the anti-overflow signal, so that the PLC controller 3 will control the water supply pump 4 to stop running; When it is at its own position, it will send a water supply request signal to the PLC controller 3, and then the PLC controller 3 will send a driving signal to the water supply pump 4, so that the water supply pump 4 performs water supply processing to the water storage tank 10 again.

Further, the fire detector 1 includes a smoke detector 11 and a heat detector 12 , both of which are connected to the PLC controller 3 . The smoke detector 11 can detect whether there is smoke in the surrounding environment. When the smoke detector 11 detects that there is smoke in the surrounding environment, it will send a smoke alarm signal to the PLC controller 3; the temperature detector 12 can The temperature of the surrounding environment is detected, and when the temperature-sensitive detector 12 detects that the temperature of the surrounding environment exceeds a preset value, the temperature-sensitive detector 12 will send a temperature alarm signal to the PLC controller 3 .

Further, a manual alarm button 8 is also included, and the manual alarm button 8 is connected with the PLC controller 3 . The manual alarm button 8 is connected with the PLC controller 3, and after people press the manual alarm button 8, the PLC controller 3 will receive the fire alarm signal sent by the manual alarm button 8, and then the PLC controller 3 will control the spraying Solenoid valve 7 is opened, and then sprinkler head just can carry out sprinkler fire extinguishing work.

Further, a monitoring terminal 9 is also included, and the monitoring terminal 9 is connected with the PLC controller 3 . When the PLC controller 3 received the fire alarm signal, the PLC controller 3 would send a fire alarm message to the monitoring terminal 9, so that people could know that a fire broke out by the monitoring terminal 9, and take rescue protection measures in time; the monitoring terminal 9 can be used for Mobile phone or computer, with mobile phone or computer as monitoring terminal 9, people can know whether a fire has broken out conveniently and quickly.

Further, a fire alarm bell 6 is also included, and the fire alarm bell 6 is connected with the PLC controller 3 . The fire alarm bell 6 is connected with the PLC controller 3. When the PLC controller 3 receives the fire alarm signal, the PLC controller 3 will send a driving signal to the fire alarm bell 6, so that the fire alarm bell 6 will send out an alarm bell. Therefore, people can know in time that a fire has occurred and take corresponding countermeasures.

Further, the inner wall of the water storage tank 10 is provided with a water inlet 101 and a water outlet 102, and the height of the water inlet 101 and the water outlet 102 located on the inner wall of the water storage tank 10 is lower than the lower water level detector 22; The water pipe 104, the water supply pump 4, the water inlet pipe 103 and the water inlet 101 are connected in sequence, and the water outlet 102, the water outlet pipe 104 and the water pump 5 are connected in sequence. The water supply pump 4 extracts the water from the outside and enters in the water storage tank 10 through the water inlet pipe 103 and the water inlet 101; Water was pumped out and used to extinguish the fire. In addition, the height of the water inlet 101 and the water outlet 102 located on the inner wall of the water storage tank 10 is lower than that of the lower water level detector 22, so as to prevent the water flow from touching the water level detector 2 during the water inlet or outlet process and cause a water level detection error , so that the water level detector 2 can perform more accurate detection.

The above is a specific description of the preferred implementation of the present utility model, but the utility model is not limited to the above-mentioned embodiment, and those skilled in the art can also make various equivalent deformations or changes without violating the spirit of the utility model. Replacement, these equivalent modifications or replacements are all included within the scope defined by the claims of the present application.

Claims (6)

1. a kind of automatic fire alarm system, it is characterised in that: including fire detector (1), level switch (2), PLC control Device (3), water supply pump (4), suction pump (5), spraying electromagnetic valve (7) and water storage box (10), the fire detector (1), the water Bit detector (2), the water supply pump (4), the suction pump (5), the spraying electromagnetic valve (7) respectively with the PLC controller (3) it connects, the level switch (2) includes upper level switch (21) and lower level switch (22), the upper water level inspection Device (21) and the lower level switch (22) is surveyed to connect with the PLC controller (3), the upper level switch (21) and The lower level switch (22) is all set on the inner wall of the water storage box (10), and the upper level switch (21) is set to The top of the lower level switch (22), the water supply pump (4) and the suction pump (5) with the water storage box (10) pipeline Connection, the spraying electromagnetic valve (7) and the suction pump (5) piping connection.

2. a kind of automatic fire alarm system according to claim 1, it is characterised in that: fire detector (1) packet Include smoke detector (11) and heat detector (12), the smoke detector (11) and the heat detector (12) are and institute State PLC controller (3) connection.

3. a kind of automatic fire alarm system according to claim 1, it is characterised in that: further include manual pull station (8), the manual pull station (8) connect with the PLC controller (3).

4. a kind of automatic fire alarm system according to claim 1, it is characterised in that: further include monitor terminal (9), institute Monitor terminal (9) is stated to connect with the PLC controller (3).

5. a kind of automatic fire alarm system according to claim 1, it is characterised in that: it further include bell fire alarm (6), The bell fire alarm (6) connect with the PLC controller (3).

6. a kind of automatic fire alarm system according to claim 1, it is characterised in that: the inner wall of the water storage box (10) On be provided with water inlet (101) and water outlet (102), the water outlet (102) and the water inlet (101) be respectively positioned on it is described under The lower section of level switch (22)；It further include water inlet pipe (103) and outlet pipe (104), the water supply pump (4), the water inlet pipe (103) it is sequentially connected with the water inlet (101), the water outlet (102), the outlet pipe (104) and the suction pump (5) It is sequentially connected.