CN218673228U - Emergency spraying device of tower equipment for flue gas treatment - Google Patents
Emergency spraying device of tower equipment for flue gas treatment Download PDFInfo
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- CN218673228U CN218673228U CN202222622506.9U CN202222622506U CN218673228U CN 218673228 U CN218673228 U CN 218673228U CN 202222622506 U CN202222622506 U CN 202222622506U CN 218673228 U CN218673228 U CN 218673228U
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Abstract
The utility model relates to an emergent spray set of tower equipment for flue gas treatment, including spraying mechanism and pressure water pitcher and PLC controlling means, the pressure water pitcher passes through first pipe connection with spray set, and pressure air supply device passes through the second pipeline and is connected with the pressure water pitcher, and pressure water source device passes through the third pipeline and is connected with the pressure water pitcher, is provided with pressure sensor and level sensor on the pressure water pitcher, is provided with first control valve on the second pipeline, is provided with the second control valve on the third pipeline, is provided with the pneumatic valve on the first pipeline, pressure sensor, level sensor, first control valve and second control valve and PLC controlling means signal connection. The emergency spraying device of the tower equipment for flue gas treatment can realize the spraying and cooling of the tower equipment under the power-off state, strives for necessary time for emergency disposal, and ensures the safety of production and personnel.
Description
Technical Field
The utility model relates to an emergent spray set of tower equipment for flue gas treatment.
Background
The tail gas treatment quenching tower of the plasma hazardous waste treatment system adopts downstream spraying, high-temperature flue gas enters from the upper part of the quenching tower, the flue gas is uniformly distributed in the quenching tower, an atomizing medium is sprayed from the top of the quenching tower and is directly contacted with the flue gas, so that the temperature of the flue gas is rapidly reduced, and the temperature range of the dioxin resynthesis can be avoided from 500-550 ℃ to below 200 ℃, thereby achieving the purpose of inhibiting the dioxin regeneration. The flue gas from the quenching tower enters a bag-type dust remover and a wet-method deacidification tower through a dry-method deacidification tower. When the bag-type dust collector is manufactured, the highest temperature resistance of a filter bag is not more than 240 ℃, the wet-method deacidification tower is made of glass fiber reinforced plastics, and the temperature resistance is not more than 180 ℃. Therefore, the temperature of the flue gas at the quenching outlet is required to be kept below 200 ℃, the temperature of the flue gas at the inlet of the quenching tower is about 500-550 ℃, and when power failure or water supply failure occurs, if the temperature is not reduced in time, the high-temperature flue gas damages the filter bag of a downstream bag-type dust collector and wet-process glass fiber reinforced plastic equipment.
The emergency water spraying and cooling device of the existing tail gas treatment device mostly fixes a water pipe at an equipment inlet, when the temperature of flue gas at the equipment inlet is abnormally high, an emergency water pump is started to guide water into the water pipe, an outlet valve of the emergency water pump is started, and a nozzle fixedly connected with the water pipe sprays water, so that the high-temperature flue gas is cooled, and the safety of subsequent equipment is protected. This emergency device just need start when the unusual operating mode of technology, and the frequency of use is not high, and emergent water pump can't start when the accident has a power failure, or pump own has the problem and can't in time start, and there is the possibility that scale deposit blockked up in water pipe or nozzle in addition, and emergent cooling system can not in time be put into operation and will influence equipment device's safety and life-span.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides one kind can be when the outage, and the tower equipment that handles the usefulness for the flue gas is emergent to provide the cooling spray set who sprays the water.
In order to realize above-mentioned purpose, the application relates to an emergent spray set of tower equipment for flue gas treatment, including spraying the mechanism, still include pressure water pitcher and PLC controlling means, pressure water pitcher passes through first pipe connection with spray set, pressure air supply device passes through the second pipeline and is connected with pressure water pitcher, pressure water source device passes through the third pipeline and is connected with pressure water pitcher, be provided with pressure sensor and level sensor on the pressure water pitcher, be provided with first control valve on the second pipeline, be provided with the second control valve on the third pipeline, be provided with the pneumatic valve on the first pipeline, pressure sensor, level sensor, first control valve and second control valve and PLC controlling means signal connection.
In some embodiments of the present invention, the outlet of the tower device is provided with a temperature sensor, said temperature sensor being in signal connection with the PLC control device.
In some embodiments of the present invention, the second pipeline is provided with a first check valve, and the third pipeline is provided with a second check valve.
In some embodiments of the present invention, the pressure water tank is provided with a pressure relief pipe, and the pressure relief pipe is provided with a pressure relief valve.
In some embodiments of the present invention, the first pipeline is provided with a manual valve on both sides of the pneumatic valve.
In some embodiments of the present invention, the first pipeline is located on both sides of the pneumatic valve and connected to a fourth pipeline, and a manual valve is disposed on the fourth pipeline.
In some embodiments of the present invention, the pressure water tank is disposed at a high position in the spraying device.
In some embodiments of the present invention, the PLC control device is in signal connection with the pneumatic valve.
The emergency spraying device of the tower equipment for flue gas treatment can realize spraying and cooling under the power-off state, strives for necessary time for emergency disposal, and guarantees the safety of production and personnel.
Drawings
Fig. 1 is a schematic structural diagram of an emergency spray device of a tower device for flue gas treatment.
In the figure: 1-spray gun, 2-pressure water tank, 3-first pipeline, 4-pneumatic valve, 5-manual valve, 6-fourth pipeline, 7-manual valve, 8-pressure air source, 9-second pipeline, 10-first control valve, 11-first check valve, 12-pressure water source, 13-third pipeline, 14-second control valve, 15-second check valve, 16-liquid level sensor, 17-pressure sensor, 18-pressure relief pipeline, 19-pressure relief valve, 20-PLC controller, 21-compressed air pipeline, 22-temperature sensor, 23-flowmeter, 24-heat preservation layer.
Detailed Description
In the relevant example, generally be provided with emergent heat sink among the tower equipment of flue gas processing usefulness to the contingency condition of dealing with tower equipment export high temperature, including spraying the mechanism in the emergent heat sink, the water in the water pitcher is squeezed into through the pump and is sprayed the cooling in to spraying the mechanism in to tower equipment. However, once the pump cannot be started due to power failure or the like, the tower equipment cannot be cooled down in an emergency, and subsequent equipment is damaged due to high temperature.
In view of there being the above-mentioned problem, the application provides an emergent spray set of tower equipment for flue gas treatment, foretell spray mechanism has mainly been included in its structure, still include pressure water pitcher and PLC controlling means in addition, pressure water pitcher passes through first pipe connection with spray set, pressure air supply device passes through the second pipeline and is connected with the pressure water pitcher, pressure water source device passes through the third pipeline and is connected with the pressure water pitcher, be provided with pressure sensor and level sensor on the pressure water pitcher, be provided with first control valve on the second pipeline, be provided with the second control valve on the third pipeline, be provided with the pneumatic valve on the first pipeline, pressure sensor, level sensor, first control valve and second control valve and PLC controlling means signal connection.
The emergency spraying device of the tower equipment for flue gas treatment realizes spraying and cooling in power failure as follows: firstly, at the in-process of normal operating, the third pipeline that pressure water source passes through water is sent into to the pressure water pitcher, pressure gas source passes through the second pipeline and is gaseous to pressure water pitcher conveying pressure, set up pressure sensor and level sensor on the pressure water pitcher, pressure numerical value signal and liquid level numerical value signal transmission in the pressure water pitcher are to the PLC controlling means, and the aperture of first control valve and second control valve on control second pipeline and the third pipeline, thereby guarantee that hydroenergy in the pressure water pitcher can reach the liquid level that can guarantee to spray the water consumption, and guarantee to form the malleation for tower equipment, in case take place the outage condition, can open the pneumatic valve, this moment because the pressure in the pressure water pitcher from the area, hydroenergy in the pressure water pitcher can enough automatic entering spray to tower equipment in spray inside, realize emergent cooling.
The emergency spraying device of the tower equipment for treating the flue gas has the advantages that the emergency spraying device can be used for storing water amount and pressure for spraying in advance in the normal operation process of the equipment, and emergency spraying can be realized without depending on electric power in the emergency process. The emergency spray system is well matched with the urgency, the quick response and the independence of emergency spray. The emergency spraying device of the tower equipment for flue gas treatment is small in modification of the whole equipment, can be completely connected in parallel on the original spraying mechanism, and is favorable for popularization and implementation.
The above-mentioned tower equipment for flue gas treatment includes, but is not limited to, various tower equipment for rectification, absorption, desorption, humidification and cooling of gas, such as a quenching tower, a deacidification tower and the like.
Fig. 1 shows a concrete structure of an emergency spray device of a tower device for flue gas treatment, which can be realized. Which is connected with a spray gun 1 in a quench tower in flue gas treatment.
A pressure water tank 2 is arranged at a high position higher than the spray gun 1, the bottom of the pressure water tank 2 is connected with an inlet of the spray gun 1 through a first pipeline 3, a pneumatic valve 4 is arranged on the first pipeline, manual valves 5 are arranged at two ends of the pneumatic valve 4, the outer ends of the two manual valves 5 are connected with a fourth pipeline 6 in parallel, and a manual valve 7 is arranged on the fourth pipeline 6.
The pressure air source 8 is connected to the top of the pressure water tank 2 through a second pipeline 9, the pressure air source 8 in the embodiment is from a compressed air storage tank, the compressed air storage tank pumps pressure air into the pressure water tank 2 through the second pipeline 9, and a first control valve 10 and a first check valve 11 are further arranged on the second pipeline 9.
The pressure water source 12 is connected to the top of the pressure water tank 2 through a third pipeline 13, the pressure water source in this embodiment is from a process water pipe network, the third pipeline 13 is connected to the process water pipe network, and can provide certain water pressure through a water pump, the process water is pumped into the pressure water tank 2 through the third pipeline 13, and a second control valve 14 and a second check valve 15 are further sequentially arranged on the third pipeline.
A liquid level sensor 16, a pressure sensor 17 and a pressure relief pipeline 18 are further arranged on the tank body of the pressure water tank, a pressure relief valve 19 is arranged on the pressure relief pipeline, and a heat preservation mechanism 24 is arranged on the surface of the pipe body of the pressure water tank. The level sensor 16 detects the water level in the pressure water tank and the pressure sensor 17 is used to detect the pressure in the pressure water tank 2. The pressure relief pipeline 18 is used for emergency pressure relief of the pressure water tank 2, and the heat insulation layer 24 is used for preventing water stored in the pressure water tank from freezing due to too low ambient temperature.
Besides, the device also comprises a PLC (programmable logic controller) 20, wherein the pressure sensor 17, the liquid level sensor 16, the first control valve 10, the second control valve 14 and the pneumatic control valve 4 are connected with the PLC 20 through signal lines, the pressure sensor 17 and the liquid level sensor 16 transmit pressure numerical signals and liquid level numerical signals to the PLC 20 through the signal lines, the PLC 20 transmits valve control signals to the first control valve 10 and the second control valve 14 through the signal lines, the pneumatic control valve 4 is set to be normally open and normally closed, and the PLC 20 controls the pneumatic control valve when the pneumatic control valve is normally powered. The PLC controller 20 can control the first control valve 10 and the second control valve 14 according to the received pressure value signal and liquid level value signal, for example, when the PLC controller 20 detects that the liquid level in the pressure water tank 2 is too low, the second control valve 14 can be opened through control to replenish water, when the PLC detects that the pressure in the pressure water tank is too low, the first control valve 10 can be opened through control, the pressure in the pressure water tank 2 is improved by replenishing pressure gas into the pressure water tank 2. After the pressure and the liquid level reach the standard, the first control valve 10 and the second control valve 14 are correspondingly closed. PLC controllers and their control principles are all present. In addition, the PLC can be connected with a temperature sensor 22 at the outlet position of the quenching tower through a signal line so as to obtain the temperature information of the outlet material in the quenching tower.
When not carrying out emergent cooling and spraying, pressure tank 2 guarantees through PLC controller 20 that it has the water yield that is enough to carry out emergent cooling and sprays in its own storage to and keep for the malleation of quench tower. When emergency such as power failure occurs, the pneumatic valve 4 is automatically opened when power failure occurs, and water in the pressure water tank 2 enters the spray gun 1 through the first pipeline 3 to spray and cool the water in the quench tower due to positive pressure. Or when the pneumatic valve 4 is in failure, water can enter the spraying mechanism through the fourth pipeline 6 to carry out emergency spraying by opening the manual valve 7 on the parallel fourth pipeline 6. Providing valuable time for first-aid repairs.
The embodiments of the present invention are only used for illustration, and do not limit the scope of the claims, and other substantially equivalent alternatives that may be conceived by those skilled in the art are within the scope of the present invention.
Claims (8)
1. Emergent spray set of tower equipment for flue gas treatment, including spraying the mechanism, its characterized in that still includes pressure water pitcher and PLC controlling means, pressure water pitcher and spray set pass through first pipe connection, and pressure air supply device passes through the second pipeline and is connected with pressure water pitcher, and pressure water source device passes through the third pipeline and is connected with pressure water pitcher, is provided with pressure sensor and level sensor on the pressure water pitcher, is provided with first control valve on the second pipeline, is provided with the second control valve on the third pipeline, is provided with the pneumatic valve on the first pipeline, pressure sensor, level sensor, first control valve and second control valve and PLC controlling means signal connection.
2. The emergency spray device of tower equipment for flue gas treatment as claimed in claim 1, wherein the outlet of the tower equipment is provided with a temperature sensor, and the temperature sensor is in signal connection with the PLC control device.
3. The emergency spray system of a tower apparatus for flue gas treatment of claim 1 wherein the second conduit is provided with a first check valve and the third conduit is provided with a second check valve.
4. The emergency spray device of tower equipment for flue gas treatment according to claim 1, wherein said pressure water tank is provided with a pressure relief pipe, and said pressure relief pipe is provided with a pressure relief valve.
5. The emergency spray device of tower equipment for flue gas treatment of claim 1 wherein said first pipe is provided with manual valves on both sides of a pneumatic valve.
6. The emergency spray system of tower equipment for flue gas treatment of claim 1 wherein said first pipe is positioned on both sides of a pneumatic valve and connected to a fourth pipe, said fourth pipe having a manual valve disposed thereon.
7. The emergency spray system of tower equipment for flue gas treatment of claim 1 wherein a pressurized water tank is disposed at a high level in said spray system.
8. The emergency spray device of tower equipment for flue gas treatment as recited in claim 1, wherein said PLC control device is signal connected to a pneumatic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222622506.9U CN218673228U (en) | 2022-09-30 | 2022-09-30 | Emergency spraying device of tower equipment for flue gas treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222622506.9U CN218673228U (en) | 2022-09-30 | 2022-09-30 | Emergency spraying device of tower equipment for flue gas treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218673228U true CN218673228U (en) | 2023-03-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222622506.9U Active CN218673228U (en) | 2022-09-30 | 2022-09-30 | Emergency spraying device of tower equipment for flue gas treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218673228U (en) |
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2022
- 2022-09-30 CN CN202222622506.9U patent/CN218673228U/en active Active
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