CN107589716B - fire safety control system for exhaust gas purification apparatus - Google Patents
fire safety control system for exhaust gas purification apparatus Download PDFInfo
- Publication number
- CN107589716B CN107589716B CN201710637243.XA CN201710637243A CN107589716B CN 107589716 B CN107589716 B CN 107589716B CN 201710637243 A CN201710637243 A CN 201710637243A CN 107589716 B CN107589716 B CN 107589716B
- Authority
- CN
- China
- Prior art keywords
- fire
- valve
- alarm lamp
- plc controller
- inlet valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention relates to a fire safety control system for waste gas purification equipment, which comprises the waste gas purification equipment and an automatic control system, wherein the waste gas purification equipment comprises a fan, a large air pipe, a spraying area, a cooling area, a high-voltage static area, an exhaust fan, an exhaust pipe and a steam fire-extinguishing valve; the automatic control system comprises a detection device, a fuse and a PLC (programmable logic controller), wherein the detection device and the fuse are connected with the PLC, and the PLC is connected with a standby water inlet valve, a three-way valve, a red alarm lamp, a yellow alarm lamp, a fire inlet valve, a fire outlet valve and a steam fire extinguishing valve. The advantage has increased a plurality of detection device 21 in exhaust gas purification equipment inside, covers comprehensively, through PLC controller 24 real time control, has significantly reduced the wrong report, has leaked and reported or the not enough condition in protective area, prevents the fire more effectively, has guaranteed tentering frame forming machine's normal production operation.
Description
Technical Field
the invention relates to the field of fire safety, in particular to a fire safety control system for waste gas purification equipment.
Background
Waste gas of a tentering forming machine is a mixed fluid containing gas-liquid-solid three-phase pollutants, has the characteristics of high temperature, high humidity, oil-containing and complex components and the like, is very serious in harm, cannot effectively prevent fire disasters and influences normal production operation of the tentering forming machine due to the fact that the conventional waste gas purification equipment has the conditions of misinformation, missing report or insufficient protection area.
Disclosure of Invention
In order to solve the problems, the invention provides a fire safety control system for waste gas purification equipment, which greatly reduces the situations of false alarm, missing report or insufficient protection area, effectively prevents fire hazards and ensures the normal production operation of a tentering forming machine.
A fire safety control system for waste gas purifying equipment comprises waste gas purifying equipment and an automatic control system, wherein the waste gas purifying equipment comprises a fan, a large air pipe, a spraying area, a cooling area, a high-voltage static area, an exhaust fan, an exhaust pipe and a steam fire-extinguishing valve, the fan is communicated with the large air pipe through an air pipe, the outlet of the large air pipe is communicated with the spraying area, a fire-inlet valve is arranged in the middle of the large air pipe, the outlet of the spraying area is communicated with the cooling area, the outlet of the cooling area is communicated with the high-voltage static area, the exhaust fan is arranged on one side of the high-voltage static area, the fire-outlet valve is arranged between the outlet of the high-voltage static area and the inlet of the exhaust fan, the outlet of the exhaust fan is connected to the exhaust pipe, the steam fire-extinguishing valve is respectively connected above the large air pipe, the cooling area and the exhaust pipe through pipelines, the spraying area is, the spraying water tank is communicated with the fire pipeline and the standby water tank through a standby water inlet valve; the automatic control system includes detection device, fuse and PLC controller, detection device includes temperature measuring device, rivers detection device and water level detection device, temperature measuring device sets up respectively at the fan entrance, in fan and the big tuber pipe wind pipe connection tuber pipe, in the big tuber pipe, import fire prevention valve import department, go out the fire prevention valve exit, and the exhaust fan exit, rivers detection device sets up in the water pump exit, water level detection device sets up at spray header low water level, and lack water level department, the fuse sets up on the exhaust fan, detection device, the fuse links to each other with the PLC controller, the PLC controller again with reserve water intaking valve, the three-way valve, red alarm lamp, yellow alarm lamp, advance the fire prevention valve, go out the fire prevention valve, steam fire extinguishing valve links to each other.
The fire safety control system for the waste gas purification equipment has two control modes, one mode is manual control, and the other mode is automatic control.
The manual control process comprises the following steps:
When the overtemperature in the waste gas purification equipment is artificially detected, the steam fire-extinguishing valve is manually opened, the fire inlet valve and the fire outlet valve are closed, and the red alarm lamp is started; when the temperature of the waste gas purification equipment is detected to be recovered to be normal artificially, the steam fire-extinguishing valve is closed artificially, the fire inlet valve and the fire outlet valve are opened, and the red alarm lamp is stopped.
the automatic control comprises the following procedures:
(1) When the temperature measuring device detects that the temperature exceeds the set temperature, the temperature is over-temperature, the PLC controller controls the steam fire-extinguishing valve to be opened, the fire-inlet valve and the fire-outlet valve to be closed, and the red alarm lamp is started; when the detected temperature is reduced to be lower than the set temperature, the PLC controls the steam fire-extinguishing valve to be closed, the fire-inlet valve and the fire-outlet valve to be opened, and the red alarm lamp is stopped.
(2) when the water level detection device detects that the spray water tank is at a low water level, the PLC controller controls to open the standby water inlet valve and start the yellow alarm lamp, and when the water level is detected to be higher than the low water level, the PLC controller controls to close the standby water inlet valve and close the yellow alarm lamp; when detecting that the spray water tank is in water shortage, the PLC controller controls to open the standby water inlet valve and start the red alarm lamp, when detecting that the water level returns to the low water level, the PLC controller controls to close the red alarm lamp and start the yellow alarm lamp, and when detecting that the water level is higher than the low water level, the PLC controller controls to close the standby water inlet valve and close the yellow alarm lamp.
(3) fusing the fuses of the fire inlet valve and the fire outlet valve, closing the fire inlet valve and the fire outlet valve, and controlling to open the steam fire-extinguishing valve and start the red alarm lamp by the PLC; after the fuse wire is replaced, the fire inlet valve and the fire outlet valve are opened, the PLC controls the steam fire-extinguishing valve to be closed, and the red alarm lamp is stopped.
(4) Fusing a fuse wire of the fuse, closing the exhaust fan, controlling to open the steam fire-extinguishing valve, closing the fire-extinguishing valve and discharging the fire-extinguishing valve by the PLC, and starting the red alarm lamp; after the fuse wire is replaced, the PLC controller controls the steam fire-extinguishing valve to be closed, the fire-inlet valve and the fire-outlet valve to be opened, and the red alarm lamp is stopped.
(5) When the water flow detection device detects that the water flow at the outlet of the water pump is low or no water flow, the PLC controller controls to open the three-way valve and start the red alarm lamp; when the detected water flow is normal, the PLC controller controls to close the three-way valve and stop the red alarm lamp.
The water pump was turned on five minutes after the device was turned on.
in the automatic control process (2), the standby water inlet valve and the three-way valve are electromagnetic valves, and the electromagnetic coils conduct electricity and are powered off to control the valves to be opened and closed.
One end of the standby water inlet valve electromagnetic coil is connected with the negative electrode of a power supply, and the other end of the standby water inlet valve electromagnetic coil is connected with the positive electrode of the power supply through a normally open contact of a standby water inlet valve relay; when the output end of the PLC controller has no output signal, the relay coil of the spare water inlet valve is powered off, the normally open contact of the relay of the spare water inlet valve is opened, and the spare water inlet valve is closed.
One end of the three-way valve electromagnetic coil is connected with the negative electrode of the power supply, and the other end of the three-way valve electromagnetic coil is connected with the positive electrode of the power supply through a normally open contact of a three-way valve relay, one end of the three-way valve relay coil is connected with the output end of the PLC controller, and the other end of the three-way valve relay coil is; when there is output signal at the PLC controller output, three-way valve relay coil switches on, and three-way valve relay normally open contact is closed, and the three-way valve is opened, does not have output signal when the PLC controller output, and three-way valve relay coil outage, and three-way valve relay normally open contact is opened, and the three-way valve is closed.
In the automatic control process (1), one end of a red alarm lamp is connected with the negative electrode of a power supply, the other end of the red alarm lamp is connected with the positive electrode of the power supply through a normally open contact of a red alarm lamp relay, one end of a coil of the red alarm lamp relay is connected with the output end of a PLC (programmable logic controller), and the other end of the coil of the red alarm lamp relay is connected with the COM 1; when there is output signal at the PLC controller output, red alarm lamp relay coil switches on, and red alarm lamp starts, and when there is not output signal at the PLC controller output, red alarm lamp relay coil cuts off the power supply, and red alarm lamp stops.
One end of a yellow alarm lamp in the automatic control process (1) is connected with the negative electrode of a power supply, the other end of the yellow alarm lamp is connected with the positive electrode of the power supply through a normally open contact of a yellow alarm lamp relay, one end of a coil of the yellow alarm lamp relay is connected with the output end of a PLC (programmable logic controller), and the other end of the coil of the yellow alarm lamp relay is connected with the COM 1; when there is output signal at the PLC controller output, yellow alarm lamp relay coil switches on, and yellow alarm lamp starts, and when there is not output signal at the PLC controller output, yellow alarm lamp relay coil cuts off the power supply, and yellow alarm lamp stops.
In the automatic control process (1), the control ends of the fire inlet valve, the fire outlet valve and the steam fire-extinguishing valve are connected with the output end of the PLC, when the output end of the PLC has an output signal, the fire inlet valve and the fire outlet valve are closed, and the steam fire-extinguishing valve is opened; when the output end of the PLC controller has no output signal, the fire inlet valve and the fire outlet valve are opened, and the steam fire-extinguishing valve is closed.
the invention has the advantages of ingenious design and reasonable structure, a plurality of detection devices are additionally arranged in the waste gas purification equipment, the comprehensive coverage is realized, the real-time control is realized through the PLC, the situations of false alarm, missing report or insufficient protection area are greatly reduced, the fire is more effectively prevented, and the normal production operation of the tentering forming machine is ensured.
Drawings
Fig. 1 is a schematic view of an exhaust gas purification process.
fig. 2 is a partial schematic view of a spray zone.
FIG. 3 is a view showing the layout of the inspection apparatus of the present invention (1).
FIG. 4 is a view showing the layout (2) of the inspection apparatus of the present invention.
Fig. 5 is a control circuit diagram of the present invention.
Detailed Description
Referring to the attached figures 1-5, a fire safety control system for waste gas purification equipment comprises waste gas purification equipment and an automatic control system, wherein the waste gas purification equipment comprises a fan 1, a large air pipe 2, a spraying area 4, a cooling area 5, a high-voltage static area 6, an exhaust fan 8, an exhaust pipe 9 and a steam fire-extinguishing valve 10, the fan 1 is communicated with the large air pipe 2 through an air pipe, the outlet of the large air pipe 2 is communicated with the spraying area 4, a fire-inlet valve 3 is arranged in the middle, the outlet of the spraying area 3 is communicated with the cooling area 5, the outlet of the cooling area 5 is communicated with the high-voltage static area 6, the exhaust fan 8 is arranged on one side of the high-voltage static area 6, a fire-outlet valve 7 is arranged between the outlet of the high-voltage static area 6 and the inlet of the exhaust fan 8, the outlet of the exhaust fan 8 is connected on the exhaust pipe 9, the steam fire-extinguishing valve 10 is respectively, the spraying area 4 is provided with a spraying water tank 14, the spraying water tank 14 is provided with a water pump 17 which is connected with the spraying water tank 14 and a spraying pipeline 18, the spraying water pipe 18 is connected on the fire pipeline 12 through a three-way valve 13, and the spraying water tank 14 is communicated with the fire pipeline 12 and a spare water tank 16 through a spare water inlet valve 15; the automatic control system comprises a detection device 23, a fuse 22 and a PLC (programmable logic controller) 24, the detection device 23 comprises a temperature measurement device 21, a water flow detection device 20 and a water level detection device 19, the temperature measurement device 21 is respectively arranged at an inlet of a fan 1, the fan 1 is connected with a large air pipe 2 into the air pipe, the large air pipe 2, an inlet of an inlet fire valve 3, an outlet fire valve 7 and an outlet of an exhaust fan 8, the water flow detection device 20 is arranged at an outlet of a water pump 17, the water level detection device 19 is arranged at a low water level and a water shortage position of a spray water tank 14, the fuse 22 is arranged on the exhaust fan 8, the detection device 23, the fuse 22 is connected with the PLC 24, and the PLC 24 is connected with a standby water inlet valve 15, a three-way valve 13, a red alarm lamp 25, a yellow alarm lamp 26, the inlet fire valve 3, the outlet fire valve 7.
The fire safety control system for the waste gas purification equipment has two control modes, one mode is manual control, and the other mode is automatic control.
The manual control process comprises the following steps:
when the overtemperature in the waste gas purification equipment is artificially detected, the steam fire-extinguishing valve 10 is manually opened, the fire inlet valve 3 and the fire outlet valve 7 are closed, and the red alarm lamp 25 is started; when artificially detecting that the temperature of the waste gas purification equipment is recovered to be normal, the steam fire-extinguishing valve is manually closed, the fire inlet valve 3 and the fire outlet valve 7 are opened, and the red alarm lamp 25 is stopped.
The automatic control comprises the following procedures:
(1) When the temperature measuring device 21 detects that the temperature exceeds the set temperature and the temperature is over-temperature, the PLC 24 controls the steam fire-extinguishing valve 10 to be opened, the fire inlet valve 3 and the fire outlet valve 7 to be closed, and the red alarm lamp 25 is started; when the temperature is detected to be reduced to be lower than the set temperature, the PLC 24 controls the steam fire-extinguishing valve 10 to be closed, the fire-inlet valve 3 and the fire-outlet valve 7 to be opened, and the red alarm lamp 25 is stopped.
(2) When the water level detection device 19 detects that the spray water tank 14 is at a low water level, the PLC 24 controls to open the standby water inlet valve 15 and start the yellow alarm lamp 26, and when the water level is detected to be higher than the low water level, the PLC 24 controls to close the standby water inlet valve 15 and close the yellow alarm lamp 26; when detecting that the spray water tank is in water shortage, the PLC controller 24 controls to open the standby water inlet valve 15 and start the red alarm lamp 25, when detecting that the water level returns to the low water level, the PLC controller 24 controls to close the red alarm lamp 25 and start the yellow alarm lamp 26, and when detecting that the water level is higher than the low water level, the PLC controller 24 controls to close the standby water inlet valve 15 and close the yellow alarm lamp 26.
(3) The fuses of the fire inlet valve 3 and the fire outlet valve 7 are fused, the fire inlet valve 3 and the fire outlet valve 7 are closed, the PLC 24 controls the steam fire-extinguishing valve 10 to be opened, and the red alarm lamp 25 is started; after the fuse wire is replaced, the fire inlet valve 3 and the fire outlet valve 7 are opened, the PLC 24 controls the steam fire-extinguishing valve 10 to be closed, and the red alarm lamp 25 is stopped.
(4) The fuse 22 is fused, the exhaust fan 8 is closed, the PLC 24 controls the steam fire-extinguishing valve 10 to be opened, the fire-preventing valve 3 is closed, the fire-preventing valve 7 is opened, and the red alarm lamp 25 is started; after the fuse is replaced, the PLC 24 controls to close the steam fire extinguishing valve 10, open the fire inlet valve 3 and the fire outlet valve 7, and stop the red alarm lamp 25.
(5) When the water flow detection device 20 detects that the water flow at the outlet of the water pump 17 is low or no water flow, the PLC 24 controls the opening of the three-way valve 13 and starts the red alarm lamp 25; when the detected water flow is normal, the PLC controller 24 controls to close the three-way valve 13, and stops the red alarm lamp 25.
The water pump 17 was turned on five minutes after the start-up of the apparatus.
in the automatic control process (2), the standby water inlet valve 15 and the three-way valve 13 are electromagnetic valves, and the opening and closing of the valves are controlled by conducting and cutting off electricity of electromagnetic coils.
One end of an electromagnetic coil of the standby water inlet valve 15 is connected with the negative electrode of a power supply, and the other end of the electromagnetic coil is connected with the positive electrode of the power supply through a normally open contact of a standby water inlet valve relay 27, one end of a coil of the standby water inlet valve relay 27 is connected with the output end of the PLC, and the other end of the coil is connected with the 24COM1 end of; when the output end of the PLC 24 has an output signal, the coil of the standby water inlet valve relay 27 is conducted, the normally open contact of the standby water inlet valve relay 27 is closed, the standby water inlet valve 15 is opened, when the output end of the PLC 24 has no output signal, the coil of the standby water inlet valve relay 27 is powered off, the normally open contact of the standby water inlet valve relay 27 is opened, and the standby water inlet valve 15 is closed.
One end of the electromagnetic coil of the three-way valve 13 is connected with the negative pole of the power supply, and the other end is connected with the positive pole of the power supply through the normally open contact of the three-way valve relay 28, one end of the coil of the three-way valve relay 28 is connected with the output end of the PLC 24, and the other end is connected with the COM1 end of the PLC 24; when there is output signal at the 24 output of PLC controller, three-way valve relay 28 coil switches on, and three-way valve relay 28 normally open contact is closed, and three-way valve 13 is opened, and there is not output signal when 24 output of PLC controller, and three-way valve relay 28 coil outage, three-way valve relay 28 normally open contact are opened, and three-way valve 13 closes.
In the automatic control process (1), one end of a red alarm lamp 25 is connected with a negative electrode of a power supply, the other end of the red alarm lamp is connected with a positive electrode of the power supply through a normally open contact of a red alarm lamp relay 29, one end of a coil of the red alarm lamp relay 29 is connected with the output end of the PLC 24, and the other end of the coil is connected with a COM1 end of the PLC 24; when there is output signal at the 24 output of PLC controller, red alarm lamp relay 29 coil switches on, and red alarm lamp 25 starts, and when there is not output signal at the 24 output of PLC controller, red alarm lamp relay 29 coil cuts off the power supply, and red alarm lamp 25 stops.
In the automatic control process (1), one end of the yellow alarm lamp 26 is connected with the negative electrode of a power supply, the other end of the yellow alarm lamp is connected with the positive electrode of the power supply through a normally open contact of a yellow alarm lamp relay 30, one end of a coil of the yellow alarm lamp relay 30 is connected with the output end of the PLC 24, and the other end of the coil is connected with the COM1 end of the PLC 24; when there is output signal at the 24 outputs of PLC controller, yellow alarm lamp relay 30 coil switches on, and yellow alarm lamp 26 starts, and when there is no output signal at the 24 outputs of PLC controller, yellow alarm lamp relay 30 coil cuts off the power supply, and yellow alarm lamp 26 stops.
In the automatic control process (1), the control ends of the fire inlet valve 3, the fire outlet valve 7 and the steam fire-extinguishing valve 10 are connected to the output end of the PLC 24, when an output signal is output by the output end of the PLC 24, the fire inlet valve 3 and the fire outlet valve 7 are closed, and the steam fire-extinguishing valve 10 is opened; when the output end of the PLC 24 has no output signal, the fire inlet valve 3 and the fire outlet valve 7 are opened, and the steam fire extinguishing valve 10 is closed.
The invention has the advantages of ingenious design and reasonable structure, a plurality of detection devices 21 are additionally arranged in the waste gas purification equipment, the comprehensive coverage is realized, the real-time control is realized through the PLC 24, the situations of false alarm, missing report or insufficient protection area are greatly reduced, the fire is more effectively prevented, and the normal production operation of the tentering forming machine is ensured.
Claims (10)
1. A fire safety control system for waste gas purification equipment comprises a fan, a large air pipe, a spraying area, a cooling area, a high-voltage static area, an exhaust fan and an exhaust pipe, wherein the fan is communicated with the large air pipe through the air pipe; the spraying area is provided with a spraying water tank and a spare water tank, the spraying water tank is provided with a water pump, the water pump is connected with the spraying water tank and a spraying pipeline, the spare water tank is connected with the spraying water tank through a pipeline, and a spare water inlet valve is arranged on the spare water tank; it is characterized in that a fire inlet valve is arranged between the outlet of the large air pipe and the spraying area, and a fire outlet valve is arranged between the outlet of the high-voltage static area and the inlet of the exhaust fan; the spray water pipe is also connected to a fire-fighting pipeline through a three-way valve, the fire-fighting pipeline is connected to a spray water tank through a pipeline, and a standby water inlet valve is arranged on the fire-fighting pipeline; the upper parts of the large air pipe, the cooling area and the exhaust pipe are respectively connected with a steam fire-extinguishing valve through pipelines; temperature measuring devices are respectively arranged at the inlet of the fan, the connection of the fan and the big air pipe in the air pipe, the big air pipe, the inlet of the inlet fire damper, the outlet of the outlet fire damper and the outlet of the exhaust fan; a water flow detection device is arranged at the outlet of the water pump; the low water level and the water level lack position of the spray water tank are provided with detection devices; the exhaust fan is provided with a fuse, the detection device and the fuse are respectively connected with the PLC, and the PLC is further connected with a standby water inlet valve, a three-way valve, a red alarm lamp, a yellow alarm lamp, a fire inlet valve, a fire outlet valve and a steam fire extinguishing valve to jointly form the fire safety control system.
2. The fire safety control system for an exhaust gas purifying apparatus as claimed in claim 1, wherein the fire safety control system for an exhaust gas purifying apparatus has two control modes, one is manual control and the other is automatic control.
3. A fire safety control system for an exhaust gas purifying apparatus as claimed in claim 2, wherein:
The manual control process comprises the following steps:
When the overtemperature in the waste gas purification equipment is artificially detected, the steam fire-extinguishing valve is manually opened, the fire inlet valve and the fire outlet valve are closed, and the red alarm lamp is started; when the temperature of the waste gas purification equipment is detected to be recovered to be normal manually, the steam fire-extinguishing valve is closed manually, the fire inlet valve and the fire outlet valve are opened, and the red alarm lamp is stopped;
The automatic control comprises the following procedures:
(1) When the temperature measuring device detects that the temperature exceeds the set temperature, the temperature is over-temperature, the PLC controller controls the steam fire-extinguishing valve to be opened, the fire-inlet valve and the fire-outlet valve to be closed, and the red alarm lamp is started; when the temperature is detected to be reduced to be lower than the set temperature, the PLC controls to close the steam fire-extinguishing valve, open the fire inlet valve and the fire outlet valve and stop the red alarm lamp;
(2) When the water level detection device detects that the spray water tank is at a low water level, the PLC controller controls to open the standby water inlet valve and start the yellow alarm lamp, and when the water level is detected to be higher than the low water level, the PLC controller controls to close the standby water inlet valve and close the yellow alarm lamp; when the spray water tank is detected to be in a water shortage state, the PLC controller controls the standby water inlet valve to be opened and the red alarm lamp to be started, when the water level is detected to return to a low water level, the PLC controller controls the red alarm lamp to be closed and the yellow alarm lamp to be started, and when the water level is detected to be higher than the low water level, the PLC controller controls the standby water inlet valve to be closed and the yellow alarm lamp to be closed;
(3) Fusing the fuses of the fire inlet valve and the fire outlet valve, closing the fire inlet valve and the fire outlet valve, and controlling to open the steam fire-extinguishing valve and start the red alarm lamp by the PLC; after the fuse wire is replaced, opening the fire inlet valve and the fire outlet valve, and closing the steam fire-extinguishing valve and stopping the red alarm lamp under the control of the PLC;
(4) Fusing a fuse wire of the fuse, closing the exhaust fan, controlling to open the steam fire-extinguishing valve, closing the fire-extinguishing valve and discharging the fire-extinguishing valve by the PLC, and starting the red alarm lamp; after the fuse wire is replaced, the PLC controller controls the steam fire-extinguishing valve to be closed, the fire inlet valve and the fire outlet valve to be opened, and the red alarm lamp is stopped;
(5) When the water flow detection device detects that the water flow at the outlet of the water pump is low or no water flow, the PLC controller controls to open the three-way valve and start the red alarm lamp; when the detected water flow is normal, the PLC controller controls to close the three-way valve and stop the red alarm lamp.
4. The fire safety control system for an exhaust gas purifying apparatus as claimed in claim 1, wherein the water pump is turned on five minutes after the apparatus is turned on.
5. the fire safety control system for exhaust gas purification equipment as claimed in claim 3, wherein in the automatic control process (2), the spare water inlet valve and the three-way valve are solenoid valves, and the opening and closing of the valves are controlled by conducting and interrupting the current of the solenoid coils.
6. The fire safety control system for the waste gas purifying equipment as claimed in claim 5, wherein one end of the electromagnetic coil of the spare water inlet valve is connected with the negative pole of the power supply, the other end is connected with the positive pole of the power supply through the normally open contact of the relay of the spare water inlet valve, one end of the relay coil of the spare water inlet valve is connected with the output end of the PLC controller, and the other end is connected with the COM1 end of the PLC controller; when the output end of the PLC controller has no output signal, the relay coil of the spare water inlet valve is powered off, the normally open contact of the relay of the spare water inlet valve is opened, and the spare water inlet valve is closed.
7. The fire safety control system for the exhaust gas purification equipment as claimed in claim 5, wherein one end of the three-way valve electromagnetic coil is connected with the negative electrode of the power supply, and the other end is connected with the positive electrode of the power supply through the normally open contact of the three-way valve relay, one end of the three-way valve relay coil is connected with the output end of the PLC controller, and the other end is connected with the COM1 end of the PLC controller; when there is output signal at the PLC controller output, three-way valve relay coil switches on, and three-way valve relay normally open contact is closed, and the three-way valve is opened, does not have output signal when the PLC controller output, and three-way valve relay coil outage, and three-way valve relay normally open contact is opened, and the three-way valve is closed.
8. The fire safety control system for exhaust gas purification equipment according to claim 3, wherein in the automatic control process (1), one end of the red alarm lamp is connected with the negative electrode of a power supply, the other end of the red alarm lamp is connected with the positive electrode of the power supply through a normally open contact of a red alarm lamp relay, one end of a coil of the red alarm lamp relay is connected with the output end of the PLC controller, and the other end of the coil of the red alarm lamp relay is connected with the COM1 end of the PLC controller; when there is output signal at the PLC controller output, red alarm lamp relay coil switches on, and red alarm lamp starts, and when there is not output signal at the PLC controller output, red alarm lamp relay coil cuts off the power supply, and red alarm lamp stops.
9. the fire safety control system for exhaust gas purification equipment according to claim 5, wherein in the automatic control process (1), one end of the yellow alarm lamp is connected with the negative electrode of a power supply, the other end of the yellow alarm lamp is connected with the positive electrode of the power supply through a normally open contact of a yellow alarm lamp relay, one end of a coil of the yellow alarm lamp relay is connected with the output end of the PLC controller, and the other end of the coil of the yellow alarm lamp relay is connected with the COM1 end of the PLC controller; when there is output signal at the PLC controller output, yellow alarm lamp relay coil switches on, and yellow alarm lamp starts, and when there is not output signal at the PLC controller output, yellow alarm lamp relay coil cuts off the power supply, and yellow alarm lamp stops.
10. The fire safety control system for exhaust gas purification equipment according to claim 5, wherein the control ends of the fire inlet valve, the fire outlet valve and the steam fire extinguishing valve are connected to the output end of the PLC in the automatic control process (1), when the output end of the PLC has an output signal, the fire inlet valve and the fire outlet valve are closed, and the steam fire extinguishing valve is opened; when the output end of the PLC controller has no output signal, the fire inlet valve and the fire outlet valve are opened, and the steam fire-extinguishing valve is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710637243.XA CN107589716B (en) | 2017-07-31 | 2017-07-31 | fire safety control system for exhaust gas purification apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710637243.XA CN107589716B (en) | 2017-07-31 | 2017-07-31 | fire safety control system for exhaust gas purification apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107589716A CN107589716A (en) | 2018-01-16 |
| CN107589716B true CN107589716B (en) | 2019-12-06 |
Family
ID=61041939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710637243.XA Active CN107589716B (en) | 2017-07-31 | 2017-07-31 | fire safety control system for exhaust gas purification apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107589716B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111701386A (en) * | 2020-07-03 | 2020-09-25 | 常州市爱伦机械有限公司 | VOCs waste gas treatment system and treatment method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1367332A1 (en) * | 2002-05-23 | 2003-12-03 | Wen-Jie Liu | Air conditioner having functions of fire preventing, smoke exhausting and water spraying |
| CN203291433U (en) * | 2013-06-14 | 2013-11-20 | 山西太钢不锈钢股份有限公司 | Sprinkling and spraying fire extinguisher for air boxes of sintering machine |
| CN103623668A (en) * | 2013-12-03 | 2014-03-12 | 湖州纳尼亚实业股份有限公司 | Wetting type static purification device for waste gas of multi-set combination sloped pipe setting machine |
| CN204582375U (en) * | 2015-03-31 | 2015-08-26 | 安徽工程大学 | A kind of dry sprinkler device |
-
2017
- 2017-07-31 CN CN201710637243.XA patent/CN107589716B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1367332A1 (en) * | 2002-05-23 | 2003-12-03 | Wen-Jie Liu | Air conditioner having functions of fire preventing, smoke exhausting and water spraying |
| CN203291433U (en) * | 2013-06-14 | 2013-11-20 | 山西太钢不锈钢股份有限公司 | Sprinkling and spraying fire extinguisher for air boxes of sintering machine |
| CN103623668A (en) * | 2013-12-03 | 2014-03-12 | 湖州纳尼亚实业股份有限公司 | Wetting type static purification device for waste gas of multi-set combination sloped pipe setting machine |
| CN204582375U (en) * | 2015-03-31 | 2015-08-26 | 安徽工程大学 | A kind of dry sprinkler device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107589716A (en) | 2018-01-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4356870A (en) | Water spray fire protection for hoods over cooking units | |
| CN112316332A (en) | Multistage early warning fire fighting device and method for lithium ion battery cabinet | |
| CN104436477A (en) | Comprehensive fire fighting system and comprehensive fire fighting method of large-size oil-containing equipment of transformer substation | |
| CN107185133A (en) | A kind of energy-accumulating power station early warning and fire-fighting system | |
| CN206880975U (en) | A kind of high-power transformer fire control enlarging device | |
| CN110270032A (en) | A kind of lithium ion battery energy storage system fire prevention and control device and implementation method | |
| CN107478983A (en) | A kind of online verifying attachment of main transformer Buchholz relay and its method for inspection | |
| CN107589716B (en) | fire safety control system for exhaust gas purification apparatus | |
| CN111991729B (en) | Power supply fire extinguishing device and locomotive | |
| CN102588744B (en) | On-line leakage detecting method of gas cutting-off system | |
| CN211486306U (en) | Fire prevention and control system for energy storage container | |
| CN106730549A (en) | A kind of free-standing fire alarm fire extinguishing end-equipment | |
| CN201939920U (en) | Water mist fire extinguisher with preheated water | |
| CN109459997B (en) | Combined type power plant fireproof and explosion-proof purging system and control method | |
| CN205402812U (en) | Kitchen fire protection system | |
| CN201865151U (en) | Automatic water supply system of fire fighting equipment | |
| CN107335159A (en) | The safety-type total flood fire-fighting system of case of restriking based on polynary feedback mechanism | |
| CN102352960B (en) | Safety device for preventing leakage during storage of nitric acid | |
| CN205287356U (en) | Kitchen fire extinguishing systems | |
| CN105047240B (en) | PWR nuclear power plant core level pump intake filter screen differential voltage protection device | |
| CN203895228U (en) | Online oil purifying device for transformer on-load tap-charger | |
| CN202531963U (en) | Novel coal gas cut-out system capable of detecting leakage on line | |
| CN112451880A (en) | Fire-fighting system for energy storage power station | |
| CN105185544A (en) | Fire-extinguishing and explosion-proof 75MVA transformer | |
| CN206541138U (en) | The interlocking protective device of intelligent automatic water-cutting system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: The road north of the city streets Rugao Yishou road 226500 city in Jiangsu province Nantong City No. 666 Patentee after: Jiangsu Tamus Textile Technology Co., Ltd Address before: The road north of the city streets Rugao Yishou road 226500 city in Jiangsu province Nantong City No. 666 Patentee before: Nantong Times Clothing Co., Ltd. |