43 results about "Wet scrubber" patented technology

The invention discloses a treatment system and method for waste incineration fly ash washing liquid cooperating with flue gas purification, and the system comprises a semi-dry desulfurization tower, a dust remover, an ash silo, a washing tank, a buffer tank, a water supply preheater and a wet washing tower which are connected with a main flue of an incineration plant, the method comprises the following steps: transferring waste incineration fly ash collected in the system into the water washing tank, and adding water for washing to obtain water washing liquid and desalted fly ash; the method comprises the following steps: spraying fly ash water washing liquid by using a wet washing tower, recovering tail flue gas waste heat, deeply removing residual acid gas in flue gas, concentrating and reducing the water washing liquid, and controlling the spraying amount to adjust the concentration ratio so as to realize the separation and solid-liquid separation of chlorine salt; introducing the concentrated water washing liquid into a semi-dry desulfurization tower, atomizing the water washing liquid into fine liquid drops by using a rotary atomizer, contacting the fine liquid drops with hot flue gas, evaporating the fine liquid drops to dryness, and absorbing acid gas in the flue gas at the same time, thereby realizing zero emission of the water washing liquid and cooperating with flue gas purification. According to the invention, the problem of high energy consumption of fly ash washing liquid treatment is solved, and the resource utilization rate of the washing liquid is improved.

A device for processing waste is described herein that comprises an ion generator, a furnace chamber, a heat exchanger, a pollution control system, and a chimney. The ion generator converts atmospheric air into an ionized gas and the furnace chamber thermally decays the waste by combining the waste with a product of an interaction of the ionized gas and heat generated by the furnace chamber. The heat exchanger cools the excess gas. A wet scrubber system removes heavy metals and / or acid gases from the cooled excess gas to generate scrubbed excess gas, and a fixed bed coke system detoxifies the scrubbed excess gas by converting carbon monoxide, water, and steam in the scrubbed excess gas to carbon dioxide and hydrogen, and removing remaining acid gas, a remaining heavy metal, and / or a remaining dioxin from the scrubbed excess gas. The chimney transfers remaining scrubbed excess gas out of the device.

An exhaust gas treatment facility includes a combustion chamber 1 for applying combustion treatment to exhaust gas, a nozzle for causing water to flow along the inner wall surface of the combustion chamber 1, a water supply line for supplying water to the nozzle, a primary wet scrubbing chamber 11, and a wet scrubber 20, etc. When removing a solid matter from the wet scrubber 20, an alkaline-based cleaning agent solution is injected to a lower water tank 44 from a chemical dispensing device 50, and a circulation pump 23 is operated to sprinkle water from a nozzle 21. Cleaning is ended if the detected pH by pH meters 52, 53 maintains a defined pH for a predetermined time or more.

Processes and apparatuses converting poly- and perfluoroalkyl substances (PFAS). An oxidation reaction zone, preferably a thermal oxidizer, is utilized to oxidize the PFAS into anionic fluoride species. A treatment zone is utilized on at least a portion of the oxidation zone effluent before the oxidation zone effluent is vented or otherwise released to the atmosphere. The treatment zone may include a dry sorbent injection zone; a selective catalytic reduction zone, a wet scrubber zone; a carbon bed; an ion exchange zone; or any combination thereof.

Device (1), preferably in the form of a wet scrubber, for cleaning a gas stream of gaseous, liquid and solid impurities, which has a gas inlet (3), at least one first washing section (6) for cleaning the gas stream with a washing liquid, a gas outlet (5) and gas supply lines (24), characterized in that the device (1) further has several gas inlets (3) for different gas streams, wherein the supply lines (24) connected to the gas inlets (3) have a continuous gradient towards the device (1) and preferably a liquid trap (14) upstream of the gas inlets (3), and the device (1) has a pre-wash chamber (16) with at least one spray nozzle (10) and, between a first washing section (6) and a second washing section (7) in the connecting line or after the washing section (6), at least one packing (9) with a specific surface area of ​​at least 400 m² / m³, preferably in the form of a textile packing.and has a spray nozzle (10) above the packing (9), whereby the washing liquid for the packing (9) and the gas flowing through the packing (9) flow in the same direction, and wherein the gas flow is directed from the upper end of the first washing section (6) via the preferably textile packing (9) downwards in the connecting line to the lower end of the second washing section (7) or to the gas outlet (5).

The present application relates to a mist trap for a wet scrubber abatement system. The mist trap includes a demisting chamber having a gas inlet for receiving mist-laden exhaust gas from the wet scrubber abatement system, a liquid capture surface where mist droplets can coalesce to form liquid, and a gas outlet where relatively dry gas can exit the chamber. The mist trap is configured such that at least a first portion of the trapped liquid exits the chamber via the gas inlet and returns to the wet scrubber abatement system. The present application also relates to a water collection baffle, an abatement system, and a method for mitigating particulate matter buildup in a primary flow path of an exhaust draw amplifier.

The application discloses a kind of waste incineration fly ash water washing liquid collaborative flue gas purification processing system and method, the system includes with incineration plant main flue connection's semi-dry desulfurization tower, dust collector, ash storehouse, water washing tank, buffer tank, water preheater, wet scrubber, method is the garbage incineration fly ash collected in system is transported to water washing tank and is washed with dosing water, obtains water washing liquid and desalted fly ash;Utilize wet scrubber to spray fly ash water washing liquid, recycle tail flue gas waste heat and deeply remove remaining acid gas in flue gas, concentrate water washing liquid to reduce amount, control spray amount to adjust concentration ratio to realize the precipitation and solid-liquid separation of chlorides;The water washing liquid after concentration is introduced into semi-dry desulfurization tower, and the water washing liquid is atomized into fine droplets by rotary atomizer, and is contacted with hot flue gas to be steamed dry while absorbing acid gas in flue gas, realize water washing liquid zero discharge and collaborative flue gas purification.The application solves the high energy consumption problem of fly ash water washing liquid processing, and improves the resource utilization rate of water washing liquid.

The present invention provides a wet scrubber for gas abatement, comprising a scrubbing vessel defining a chamber, a gas inlet for supplying a gas to be scrubbed, and a gas outlet for allowing the egress of a scrubbed gas; the inlet and outlet being in fluid communication with one another; one or more scrubbing fluid supply ports; the wet scrubber comprising at least one distribution element connected to a scrubbing fluid supply port for distributing a scrubbing fluid inside the chamber; wherein at least one said distribution element is a distribution plate comprising a cavity and a plurality of apertures arranged to allow scrubbing fluid to flow from the cavity

The utility model relates to the technical field of flue gas treatment equipment, in particular to a wet tower dehumidification liquid energy-saving and consumption-reducing system, which consists of four groups of purification structures, each group of purification structure comprises a wet washing tower, a dehumidification liquid discharge end of the wet washing tower is communicated with a dehumidification water tank through a dehumidification liquid discharge pipeline, and the dehumidification liquid discharge pipeline is communicated with a dehumidification water tank. The liquid discharging end of the dehumidification water tank communicates with a dehumidification liquid circulating pump through a pipeline, the liquid conveying end of the dehumidification liquid circulating pump communicates with a dehumidification liquid main pipe through a dehumidification liquid conveying pipeline, and the dehumidification liquid main pipe communicates with the dehumidification liquid conveying pipelines of the other three purification structures. When the dehumidification liquid circulation system is in operation, the dehumidification liquid of the four sets of purification devices can be used in a backflow mode only through one set of dehumidification liquid circulation pumps, and therefore the other three sets of dehumidification liquid circulation pumps do not need to be operated. Therefore, the number of the dehumidifying liquid circulating pumps can be reduced, and the purposes of energy conservation and emission reduction can be achieved.

The invention discloses a long-tube venturi wet scrubber and a working method thereof, and relates to the technical field of venturi tubes, the long-tube venturi wet scrubber comprises a first tank body and a second tank body, the first tank body and the second tank body are in through connection, and the long-tube venturi wet scrubber further comprises a section adjusting mechanism arranged in the first tank body and moving in a throat tube part of the first tank body; when unstable gas enters the throat pipe part of the first tank body, the air pressure pushes the section adjusting mechanism to move in the throat pipe part, and then the pressure at the position of the throat pipe part is adjusted. When gas with unstable gas pressure flows into the second tank body, and the gas pressure reaches a preset range, the gas pressure pushes the section adjusting mechanism at the position of the throat pipe part to move in the radial direction or the axial direction of the throat pipe part, so that the gas pressure in the throat pipe part is adjusted, and the load of the throat pipe part is kept within a certain range.

The present invention relates to the field of waste gas treatment technology, and specifically to a wet scrubbing tower, comprising a tower body; at least one support platform provided in the tower body for carrying a filler, the bottom end of the support platform being hollowed out to allow waste gas to penetrate the support platform and contact the filler; and a first spray system provided in the tower body. The present invention adds a second spray system to the original first spray system, so that the first nozzle of the first spray system sprays an absorption liquid onto the filler from a first direction, thereby spraying from the outside to the inside, while the second nozzle of the second spray system sprays the absorption liquid from the inside of the filler outwardly along a second direction onto the filler layer, thereby spraying from the inside to the outside, thereby allowing two absorption liquids with different flows to meet in the filler layer, effectively improving the wetting efficiency of the filler layer.

To provide a drain elimination device that can prevent blockage by a drain and the like deriving from water vapor included in sample gas taken out from processed gas of a wet scrubber.SOLUTION: A drain elimination device has: a sample gas circulation pipe 21 that is formed into a U-shaped so as to fold up at the lowermost part 21a; a cooler that consists of a cooling box 24 performing cooling by causing sample gas to flow via two straight pipe sections 21b of the sample gas circulation pipe 21, and cool air generation means 25 supplying cool air inside of the cooling box 24; a drain recovery pipe 22 that branches from the lowermost part 21a of the sample gas circulation pipe 21; and a seal pot 23 that water-seals a lower end opening part 22a of the drain recovery pipe 22. Inside of the cooling box 24, a cool air distribution pipe 26 is provided that has a plurality of ejection ports ejecting the supplied cool air in a side surface, and an opening area of the ejection port per a unit length in an axial direction of the cool air distribution pipe 26 tapers toward a tip end part.SELECTED DRAWING: Figure 1

The utility model provides a kind of cleaning device and wet scrubber, belong to the technical field of semiconductor manufacturing. Including: installation part, inside is provided with cylindrical containing space, is provided with N spiral grooves on the inner wall of installation part;Scrape head, edge and the inner wall sliding connection of installation part;Rod, first end and the first end surface of scrape head fixed connection;Driving element, with the second end of rod connection;Cleaning element, including connecting portion and N cleaning parts, the first end of connecting portion inserts the second end surface of scrape head and with scrape head rotary connection, the second end of connecting portion is respectively with the first end fixed connection of N cleaning parts, the second end of cleaning part extends into corresponding spiral groove.The utility model's technical scheme can realize the automatic cleaning of scraper, effectively improve cleaning efficiency.

Processes and apparatuses converting poly- and perfluoroalkyl substances (PFAS). An oxidation reaction zone, preferably a thermal oxidizer, is utilized to oxidize the PFAS into anionic fluoride species. A treatment zone is utilized on at least a portion of the oxidation zone effluent before the oxidation zone effluent is vented or otherwise released to the atmosphere. The treatment zone may include a dry sorbent injection zone; a selective catalytic reduction zone, a wet scrubber zone; a carbon bed; an ion exchange zone; or any combination thereof.

The invention discloses a quenching dry dust removal system, including a quenching tower, the upper end of the quenching tower is a flue gas input port and is connected to the flue gas output port of the self-waste heat boiler equipment, a cooling spray device is arranged at the upper end of the quenching tower and corresponding to the flue gas input port; the lower end of the quenching tower is a flue gas output port and is connected to the lower end of the dry reactor, the upper end of the dry reactor is a flue gas output port and is connected to the bag filter input port, and the bag filter output port is connected to the wet scrubber input port; it also includes a slaked lime intermediate bin and an activated carbon bin, and the slaked lime output port at the lower end of the slaked lime intermediate bin and the slaked lime input port at the lower end of the dry reactor, and the activated carbon output port at the lower end of the activated carbon bin and the activated carbon input port at the lower end of the dry reactor are respectively connected through a slaked lime conveying device and an activated carbon conveying device. The invention has the characteristics of being more reasonably designed, being able to improve the quality of flue gas dust removal, and being able to better purify flue gas to meet emission requirements.

The present invention provides a harmful gas processing apparatus installed in a semiconductor manufacturing apparatus for processing harmful components contained in a gas, the semiconductor manufacturing apparatus comprising: a semiconductor process chamber; a foreline exhaust pipe extending from the semiconductor process chamber; the vacuum pump is used for exhausting the gas of the semiconductor process chamber through the preceding-stage pipeline exhaust pipe; and a pump exhaust pipe through which the gas discharged from the vacuum pump flows, the harmful gas processing apparatus including: a vacuum plasma reactor installed on the foreline exhaust pipe and performing plasma processing on the gas discharged from the semiconductor process chamber by generating a plasma reaction on the gas; the power supply device is used for supplying power to the vacuum plasma reactor; and a wet scrubber which is connected to the pump exhaust pipe and treats all the gas discharged from the vacuum pump in a wet manner.

Methods, systems, and devices provided in accordance with various embodiments are generally related to the field of thermal management systems for buildings (or volumes in general), such as cold storage, food processing, or other buildings that have areas that are kept below freezing. Embodiments generally pertain to the management of temperature and humidity within these spaces. Some embodiments include system for the management of moisture and temperature inside cold spaces. Some embodiments include a heat and mass transfer exchanger, such as a direct constant gas liquid heat and mass transfer exchanger. Examples of such heat and mass transfer exchangers generally include wet scrubbers. Embodiments also generally include a series of ducts, pipes, heat exchangers, dampers, and / or valves that may allow the system to provide useful temperature and relative humidity levels to one or more spaces or volumes.

This application relates to a mist-trap for a wet-scrubber abatement system. The mist trap comprises a demisting chamber having a gas inlet for receiving mist-laden exhaust gas from the wet-scrubber abatement system, a liquid capture surface on which the mist droplets may coalesce to form a liquid, and a gas outlet through which relatively dry gas may exit the chamber. The mist trap is configured such that at least a first portion of the captured liquid exits the chamber via the gas inlet to return to the wet-scrubber abatement system. The application also relates to a water-collecting baffle, an abatement system, and a method of moderating particulate build-up in a primary flow channel of an exhaust draw amplification device.

The utility model discloses a mercury removal device based on a self-excitation oscillation pulse jet flow principle, and relates to the field of self-excitation oscillation pulse jet flow atomization, a cyclone separator is communicated with a wet washing tower, a fan, an adsorption tank, a pump absorption device, a gas buffer device, a sucking pump, a mercury tail filtering device and a waste gas discharging device through a waste gas conveying pipeline. According to the utility model, the self-agitation pulse jet nozzle device is adopted, so that the treatment efficiency of mercury waste gas is improved, and compared with the existing device, the mercury removal efficiency, the mercury removal capability and the energy consumption are improved.

The invention relates to the technical field of tobacco production, and provides a wet dust collector which comprises a dust collection cylinder, a smoke inlet formed in the lower portion of the dust collection cylinder and a spraying component installed in the smoke inlet and used for spraying washing liquid into smoke, a draught fan is installed at the top of the dust collection cylinder, and a smoke exhaust port is formed in the draught fan; a micro-seepage membrane assembly is arranged on the upper side of the interior of the dust removal cylinder and connected with an inner cavity water supply assembly mounted on the upper side of the inner wall of the dust removal cylinder; the micro seepage membrane assembly comprises a cylindrical sleeve arranged on the upper side in the dust removal cylinder and a sealing ring used for connecting the cylindrical sleeve with the inner cavity water supply assembly. When the device is used, by matching variable-pitch spiral agglomeration and micro-seepage film capture, ultrafine smoke dust agglomeration and weight increment are actively promoted, the micro-seepage film provides a stable and reliable final capture surface, and the combination of the variable-pitch spiral agglomeration and the micro-seepage film ensures that the concentration of smoke dust at an outlet is stable and meets the increasingly strict ultralow emission requirement of the tobacco industry.

The present invention provides a caustic soda utilization optimization device for a wet scrubber used for treating waste incineration flue gas, comprising: a wet scrubber for scrubbing incoming incineration flue gas; a caustic soda storage tank for storing a caustic soda solution used to remove acidic substances from the incineration flue gas; a caustic soda delivery mechanism electrically connected to the caustic soda storage tank and the wet scrubber, respectively, for delivering the caustic soda solution from the caustic soda storage tank to the wet scrubber; a cooling mechanism mounted externally to the caustic soda delivery mechanism for cooling the caustic soda solution delivered by the caustic soda delivery mechanism; and a cleaning mechanism electrically connected to the caustic soda delivery mechanism for cleaning the pipeline after the caustic soda delivery mechanism is shut down. The present invention can improve the utilization efficiency of caustic soda in the wet scrubber, reduce pipeline blockage and crystallization, and selectively adjust the cooling efficiency based on the temperature of the acidic gas and the dehumidifying liquid, thereby meeting different requirements and improving flue gas treatment efficiency.

The utility model discloses a waste mineral oil pyrolysis device and relates to the technical field of petroleum, coal gas and coking industries. The waste mineral oil pyrolysis device comprises a pyrolysis reaction kettle, and a protective cover is fixedly mounted on the outer surface of the pyrolysis reaction kettle; the pyrolysis reaction kettle is provided with a gas filtering structure, the gas filtering structure comprises a Venturi wet washer, an exhaust fan, a connecting pipe, a communicating pipe and a filtering box, the exhaust fan is fixedly mounted on the outer surface of the protective cover, and through cooperation of the connecting pipe, the exhaust fan, the Venturi wet washer, the filtering box, the communicating pipe and an activated carbon filtering plate, the gas can be filtered out through the gas filtering structure. The venturi wet scrubber can filter and purify harmful gas, the filtered gas is discharged into the filter box through the communicating pipe, the activated carbon filter plate can adsorb residual peculiar smell in the gas, and the situation that the gas directly and seriously affects the atmosphere quality and the ecological environment is avoided; and the environmental protection property of pyrolysis of the waste mineral oil is further improved.

The invention discloses a flue gas treatment device for production of a supercapacitor electrode material. The flue gas treatment device comprises a cyclone dust collector, a Venturi wet washing tower; a photocatalytic oxidation reactor; an activated carbon adsorption box and an induced draft fan. A Venturi tube section is arranged in the Venturi wet washing tower; a spraying layer; the demisting layer and the circulating liquid tank are used for efficiently removing particulate matters and acid gas; ultraviolet lamp tubes and metal foam nets loaded with nano TiO are alternately arranged in the photocatalytic oxidation reactor to decompose organic pollutants; the activated carbon adsorption box performs deep adsorption. According to the device, a multi-stage combined treatment process is adopted, and dust generated in the electrode material production process is removed; the acid gas and organic waste gas purification efficiency is high, operation is stable and reliable, adaptability is high, and the environment-friendly emission requirement is met.

This application relates to a water-saving and emission-reducing wet scrubber, which includes a frame with an air inlet and an air inlet pipe on the side wall and an exhaust port on the top. Inside the frame are a water tank and a gas-liquid mixing mechanism, which includes a baffle box, a demister, and a liquid level control component. It also includes guide plates, baffle plates, wire mesh, and other structures. The air box has a special design, and the frame has an inspection port, a filter box, and a receiving box. This application employs a three-stage treatment process: "large particle pre-interception → medium and fine particle water mist capture → fine dust demisting and deep purification." It specifically captures dust of different particle sizes, significantly improving the overall dust removal efficiency. It is suitable for various types of dust. The entire process is wet, eliminating the risk of explosion and reducing airflow temperature. The liquid level control component precisely maintains the water level to avoid water waste. There is no risk of secondary dust generation from the captured dust, meeting environmental emission requirements. It also achieves final purification of exhaust gas and water recycling.

The invention discloses a waste incineration flue gas treatment system with energy-saving heating, comprising a flue gas purification system, an ash conveying chain, a fly ash solidification system and a heating system. The flue gas purification system comprises a cooling tower, a bag dust collector, a wet scrubber and an activated carbon adsorption tower. The flue gas purification system also comprises a urea tank and a caustic soda tank. The fly ash solidification system comprises a bucket elevator, a silo top spiral, a fly ash silo, a fly ash spiral and a fly ash solidification chamber. The heating system comprises a heating main pipe, a heating branch pipe and a hot water tank. The heating main pipe and the heating branch pipe are connected. The hot water tank is connected to the heating main pipe. The heating branch pipe exchanges heat with one or more of the urea tank, the caustic soda tank, the cooling tower, the bag dust collector, the ash conveying chain, the bucket elevator, the fly ash silo and the silo top spiral. A steam main pipe is arranged on the heating main pipe. The invention utilizes the waste heat of boiler sewage and steam to maintain the working temperature of the equipment, reduces the loss of electric energy of the system in maintaining the working temperature of the equipment, and has great practicality.

The present invention provides a harmful gas treatment apparatus, which is an apparatus installed in a semiconductor manufacturing facility and configured to treat harmful components contained in a gas, wherein the semiconductor manufacturing facility comprises: a semiconductor process chamber; a foreline exhaust pipe extending from the semiconductor process chamber; a vacuum pump for discharging gas from the semiconductor process chamber through the foreline exhaust pipe; and a pump exhaust pipe through which the gas discharged from the vacuum pump flows, and the harmful gas treatment apparatus comprises: a vacuum plasma reactor installed on the foreline exhaust pipe and generating a plasma reaction with respect to the gas discharged from the semiconductor process chamber, to perform plasma treatment on the gas; a power supply device for supplying power to the vacuum plasma reactor; and a wet scrubber connected to the pump exhaust pipe and treating, in a wet manner, the entire gas discharged from the vacuum pump.

The present invention relates to a system (100) and a process for steam / hot water generation by utilizing thermal energy from flue gases generated by waste incineration. The system (100) includes a muffle furnace (105), a waste heat recovery unit (WHRU) (110), a wet scrubber (115 a), an absorber system (115 b), a chimney (120), a venturi (125) and an ash chamber (130). The muffle furnace (105) includes an incinerator chamber for pharmaceutical waste combustion (105 a), biomass briquette combustion chamber (105 b) and a four-pass holding chamber (105 c) having four passes (105 cl), (105 c2), (105 c3) and (105 c4). The system enables saving fuel and utilizes high calorific pharmaceutical waste.

A device, such as a wet scrubber for cleaning a stream of gas by removing gaseous, liquid and solid impurities, has a gas inlet and a gas outlet. At the gas inlet there is a first structured packing. A spray-scrubber area with atomizing nozzles is provided above the first structured packing. A first demister is provided for separating larger drops above the spray-scrubber area. A woven fabric is above the first demister, and spray nozzles are arranged around this woven fabric to spray washing liquid in the direction of the gas stream onto the surface of the woven fabric. A final demister is located above the woven fabric and has a demister rinsing apparatus. The device may be used to dispose of industrial waste gases encountered in the semiconductor industry, particularly for the disposal of waste gases stemming from CVD processes in microelectronics production.

The utility model relates to the technical field of waste gas treatment, and discloses a plastic extruder waste gas treatment system which comprises a processing table, supporting plates are fixedly connected to the left side, close to the edge, of the top end of the processing table, wet scrubbers are fixedly connected to the left sides of the top ends of the supporting plates, and the left sides of the wet scrubbers are communicated with second L-shaped pipes; the right sides of the second L-shaped pipes communicate with first L-shaped pipes correspondingly, the bottom ends of the first L-shaped pipes communicate with a filter cotton tank, the right side of the filter cotton tank communicates with a second long pipe, and the right end of the second long pipe communicates with an electrostatic oil removal tank. According to the waste gas treatment device, the second L-shaped pipe, the wet washer, the first L-shaped pipe, the filter cotton tank, the Z-shaped pipe, the centrifugal oil removal tank, the third L-shaped pipe, the electric dust remover and the oil mist purifier are matched with one another, so that waste gas is treated through multiple devices, the harm of the waste gas can be effectively reduced, and meanwhile certain harm to operators is avoided.

The utility model relates to a PH value detection device of a wet washing tower. The lower part of the wet washing tower is connected to the bottom of an overflow device; a PH value detection temporary storage device is arranged in the overflow device; the bottom of the PH value detection temporary storage device is also connected to the lower part of the wet washing tower; the upper part of the PH value detection temporary storage device is connected to an outlet of the cooling liquid cooler; a PH value detection device is arranged on the PH value detection temporary storage device; the PH value detection device is electrically connected with the control device and is used for transmitting the PH value detected by the PH value detection device. The problems that in a cooling liquid cooler of an existing wet-type washing tower, cooling water is usually used as a cooling agent, in the recycling process of the cooling agent wet-type washing tower, the PH value is reduced, the cooling water is acidic, components of the wet-type washing tower are damaged in the washing process of the wet-type washing tower, and the cooling effect of the wet-type washing tower is affected are solved. The technical problem that a PH value detection device of a wet type washing tower needs to be installed on an original wet type washing tower is solved.