CN103657325A - Hospital medical waste gas treatment and safe discharge system - Google Patents
Hospital medical waste gas treatment and safe discharge system Download PDFInfo
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- CN103657325A CN103657325A CN201310689963.2A CN201310689963A CN103657325A CN 103657325 A CN103657325 A CN 103657325A CN 201310689963 A CN201310689963 A CN 201310689963A CN 103657325 A CN103657325 A CN 103657325A
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Abstract
The invention discloses a hospital medical waste gas treatment and safe discharge system, which comprises a dust remover, a closed heater, a reactor, a filter, a main induced draft fan and a circulating fan which are sequentially connected. The dust remover, the closed heater, the reactor, the filter and the gas inlet and outlet of the draught fan are connected in sequence. The inlet of the circulating fan is connected with the filter, and the outlet of the circulating fan is connected with the reactor. Temperature, pressure and flow sensors are arranged in the system and the measurement signals are processed by the measurement module. According to the measuring signal, the automatic control module adjusts the working states of the dust remover, the closed heater, the reactor and the fan device so as to adapt to the requirement of the current medical waste gas treatment. The system has the characteristics of wide medical waste gas treatment range, good treatment effect, convenience in installation and maintenance and relatively low investment.
Description
Technical field:
The present invention relates to field of environment protection, the processing of the waste gas that particularly a kind of hospital produces in medical treatment and safety dumping system.
Background technology:
In hospital, different medical function will produce different waste gas with room, and its composition there are differences, but related data and the treatment technology of the medical waste gas kind of current domestic shortage and specificity analysis.By analysis that the source of medical waste gas and composition characteristic are investigated, research is applicable to the treatment technology of the external safety dumping of medical waste gas, and researches and develops relevant treatment facility.
According to early stage the information of the source of waste gas, discharge, composition and character being grasped, can propose effectively to process means.Reach the externally safety standard of discharge of medical waste gas.Meet < < hospital Waste Management regulations > > (No. 380th, Decree of the State Council of the People's Republic of China).Associated laws and regulations, department regulation, national catalogue, national standard, national policy and national planning etc. that the departments such as up-to-date State Environmental Protection Administration put into effect.These files to the definition of clinical waste, classification, collection transport, the management such as packing mark, processing disposal and storage and dispose link and all made concrete regulation and standard.The medical waste gas of safety dumping also needs to meet < < Law of Environmental Protection of the People's Republic of China > > (No. 22 issue of in December, 1989 26 People's Republic of China (PRC) decree of chairman)
In the medical exhaust-gas treatment patent application relevant to present patent application, there is the utility model patent " deodorization treatment device for exhaust of medical waste " of Shandong Xinhua Medical Environmental Protection Equipment Co., Ltd.'s application, application number 200820232764.3.This patent application relate to a kind of deodorization treatment device for exhaust of medical waste, belong to medical environmental protection equipment field, comprise deodorizing tower and filter, the gas outlet of deodorizing tower is communicated with the air inlet of filter bottom, filter top is provided with gas outlet, and deodorizing tower inside top arranges shower nozzle, and shower nozzle is by pipeline connection deodorant liquid case, it is characterized in that filter top arranges steam pipe, bottom arranges drain pipe.Can carry out deodorization processing to the waste gas producing in medical waste high temperature sterilization process, and cost is low, effective.This patent is just processed the deodorizing of medical waste gas, adopts the mode of spray thrower spray deodorant can only eliminate stink in its deodorizing case, can not safe handling waste gas, realize safety dumping.
In the medical exhaust-gas treatment patent application relevant to present patent application, there is the utility model patent " medical waste gas removing device " of Zhang Zhongkai application, application number 95240293.9.This utility model patent provides a kind of medical waste gas removing device being arranged in small-sized Medical Devices, belong to medical apparatus and instruments neck city, it is controlled cover, exhaust hose, screw, nut etc. by small-sized axial flow fan, air-breathing control kingfisher, inhaling hose, exhaust and forms.It has advantages of simple in structure, use newly neck, respond well of reliable, design.Its principal character is to utilize axial flow blower, installs an air-breathing control cover at its air intake position additional, forms negative pressure space, installs an exhaust additional control cover at its air-out position, forms malleation space, so just makes device have the function of pump drainage medical treatment waste gas.This utility model can be used among the various small-sized Medical Devices that need pump drainage medical treatment waste gas.This patent is just pumped to outdoor to medical waste gas, and is only applicable in small desk Medical Devices.Medical waste gas is not carried out to any safe handling.
In the medical exhaust-gas treatment patent application relevant to present patent application, there is the utility model patent " a kind of filter of exhaust gas generated by medical waste treatment " of the limited public application of Shandong China day environment, application number numbers 201120066730.3.A kind of filter of exhaust gas generated by medical waste treatment is made by stainless steel, top is provided with two recirculated water mouth sprays, filter middle part installs Pall ring filler additional, the waste gas that Biohazard Waste process to produce enters after filter directly gatherer bottom, the uncovered of horn mouth shape by a kind of particular design upwards dispersed, in Pall ring filler, fully contact with Sprayer Circulation water, the toxic component in waste gas is filtered, and the waste water of formation is discharged through discharge outlet.Remaining micro-waste gas carries out secondary filter qualified discharge through activated carbon filtration.This patent is just filtered medical waste gas, and absorb waste gas by Sprayer Circulation water, does not carry out safe handling.Finally, to remaining waste gas activated carbon filtration, easily cause water content in active carbon to absorb activity compared with losing greatly.
The processing of the waste gas producing in a kind of medical treatment described in this patent and safety dumping system still belong to the first application in current domestic patent.Therapeutic medical waste gas may result from the evaporation of medical experiment heating, pharmacy solution, medical procedure special gas release etc.In medical treatment waste gas, a large amount of pathogenic microorganisms be may contain, and various medicines, flue gas particle and a large amount of small aerosol particle contained.The more defects of processing mode ubiquity such as conventional ultraviolet disinfection, ozonization.(1) cannot realize comprehensively focusing on of medical waste gas, generally can only process a part of pollution sources wherein.(2) cannot carry out Measurement accuracy to treatment effect, the waste gas being discharged in environment is difficult to meet safety dumping standard and environmental requirement.(3) automation detection and control degree are low.
For overcoming existing technological deficiency, the invention provides a kind of processing and safety dumping system of medical waste gas.This system can focus on various dissimilar medical waste gas comprehensively, adopt sterilization comprehensively, dedusting, deodorizing, the methods such as filtrations, biological safety is good, is not prone to pathogenic microorganisms and spreads.And can process the wide ranges of medical waste gas, treatment effect is good, and has convenient for installation and maintenancely, invests relatively less feature.
The invention discloses a kind of processing and safety dumping system of Hospital medical waste gas, comprise the deduster connecting successively, airtight heater, reactor, filter, main induced draft fan and circulating fan.The gas inlet and outlet of described deduster, airtight heater, reactor, filter and air-introduced machine is connected successively.The entrance of circulating fan is connected with filter, and outlet is connected with reactor.In system, arrange temperature, pressure and flow sensor, and process measuring-signal by measurement module.According to measuring-signal, automatic control module is to deduster, airtight heater, and the duty of reactor and Fan Equipment is adjusted, to adapt to the needs of current medical exhaust-gas treatment.The medical waste gas that this equipment can produce reasons such as special gas releases in medical experiment heating, pharmacy solution evaporation, medical procedure is effectively processed and safety dumping.And can adopt and process targetedly means the medical waste gas of specific environment is adjusted, thereby reach better effect.The wide ranges of the processing medical treatment waste gas of this system, treatment effect is good, and has convenient for installation and maintenancely, invests relatively less feature.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, propose a kind of processing and safety dumping system of medical waste gas.This system can focus on various dissimilar medical waste gas comprehensively, adopts sterilization comprehensively, dedusting, and deodorizing, the methods such as filtration, biological safety is good, is not prone to pathogenic microorganisms diffusion.The wide ranges of treatable medical waste gas, treatment effect is good, and has convenient for installation and maintenancely, invests relatively less feature.
The technical scheme that the present invention realizes above-mentioned target is a kind of processing and safety dumping system of medical waste gas.Comprise the deduster connecting successively, airtight heater, reactor, filter, main induced draft fan and circulating fan.The gas inlet and outlet of described deduster, airtight heater, reactor, filter and air-introduced machine is connected successively.The entrance of circulating fan is connected with filter, and outlet is connected with reactor; In system, arrange temperature, pressure and flow sensor, and process measuring-signal by measurement module.According to measuring-signal, automatic control module is to deduster, airtight heater, and the duty of reactor and Fan Equipment is adjusted, to adapt to the needs of current medical exhaust-gas treatment.
In order to achieve the above object, the present invention has taked following technical scheme:
A kind of processing of multiple medical waste gas and system of safety dumping of being applicable to, adopt thermal resistance, pressure gauge, flowmeter, electrodymamometer, hygrometer, gas dust content instrument, gas pollutant measuring instrument and gas bacteria containing amount measuring instrument, system support control system, measuring-signal data collecting system are carried out a series of processing and monitoring to exhaust-gas treatment and safety dumping.Need the monitor signal obtaining to have: deduster porch dustiness detection signal, deduster exit gas flow signal, airtight calorifier inlets temperature signal, airtight heater outlet temperature signal, airtight heater electrical power signal, reactor pressure signal, reactor outlet water capacity signal, filter outlet water capacity signal, filter outlet pollutant load detection signal, filter outlet bacteria containing amount detection signal, indoor environment air temperature signal, outdoor environment air temperature signal.After picked up signal, first acquisition system carries out data screening and processing, then according to the result after data processing, controls the work of each parts.Its feature comprises the following steps:
(1) waste gas dedusting is processed: first medical waste gas enters deduster under the effect of air inducing air-flow.The dust collection method that deduster adopts is to adopt electrostatic precipitation mode.The dust removing effects of deduster can be adjusted electrostatic potential, discharge frequency and switch according to the control device of system.Under the effect of control device, the electrostatic interaction of deduster is removed most dust particles of waste gas.The germ being adsorbed in waste gas in dust particle also will be removed thereupon.
(2) waste gas heating: the heating means of airtight heater are to adopt Electric heating.The Electrothermal ring that airtight heater adopts is placed on the inside wall of heater.The inside and outside environmental sealing of heater is isolated.The externally fed of Electrothermal ring adopts Alternating Current Power Supply to control.By the temperature control system that heater is additional, control heating source, to entering the off-gas flows of heater, heat uniformly; In heating process, the heating power that control system regulates heater to apply slowly changes, and the outlet temperature that realizes waste gas fluctuates in very little scope according to the temperature requirement of setting; In general, the occasion that the inlet temperature of waste gas produces along with the temperature of environment and waste gas and changing to some extent, but can, according to the waste gas type requirements of processing, and waste gas is heated to a specific temperature, from exit, send again.Can conveniently adjust Temperature Setting, make main composition to be processed in waste gas obtain reaction temperature preferably.
(3) exhaust-gas treatment course of reaction: waste gas obtains after suitable reaction temperature, can enter reactor and carry out the innoxious reaction treatment process of waste gas.Owing to may resulting from the evaporation of medical experiment heating, pharmacy solution, medical procedure special gas release etc. in medical waste gas.In medical treatment waste gas, a large amount of pathogenic microorganisms be may contain, and various medicines, flue gas, soot dust granule and a large amount of small aerosol particle contained.So reactor need to possess multiple reaction reagent, thereby can focus on all kinds of medical waste gas.In reactor, there is reagent spray device, conveniently the reaction reagent of preloaded is injected in reactor.During gas channel in the distribution grid that off-gas flows is installed by inside reactor, a plurality of vertical aperture on passage are sneaked in air-flow the pollutant reaction with waste gas by the droplet of reaction reagent, remove corresponding pollutant.Select suitable reaction reagent and can remove pathogenic microorganisms, drug particles, the soot dust granule in flue gas, the sulfide in flue dust and aerosol granule.Distribution grid can make the air current flow of medical waste gas more even, higher with the droplet mixing efficiency of reaction reagent.
(4) waste gas filtering process: waste gas carries out, after harmless treatment, entering filter at reactor.In filter, according to the traffic requirement of flow of process air, place the filtration active carbon of some.The placement amount of active carbon and modes of emplacement can all filter the reaction reagent in air-flow.Activated carbon to waste gas, in reaction, also have afterwards a small amount of remaining droplet to adsorb, and part granule and the sour gas that may generate in reaction are adsorbed.The effect of activated carbon is a small amount of microorganism, granule, droplet and the sour gas also likely existing in purifying exhaust air thoroughly.In use for some time, the activity of active carbon can decline.Now, need to the active carbon in filter be changed or be regenerated.
(5) process rear EGR: generally, after filter, major pollutants and pathogenic microorganisms wherein are all disposed at waste gas.But sometimes due to the major pollutants in medical waste gas and pathogenic microorganisms content too high, may still contain more major pollutants and pathogenic microorganisms at filter outlet, fail to reach processing requirements.Now can pass through circulating line by circulating fan again imports in reactor and reacts.Now, the valve opening on circulating line, the valve closing on the main exhaust pipeline that main induced draft fan connects.Until the major pollutants of filter outlet and pathogenic microorganisms reach processing requirements, then close the valve on circulating line, open the valve on main exhaust pipeline.
(6) processing rear waste gas discharges: the major pollutants of filter outlet and pathogenic microorganisms reach after processing requirements, the valve opening on the main exhaust pipeline that main induced draft fan connects.Waste gas after processing is device for transferring under the effect of main induced draft fan.During valve closing on main exhaust pipeline, main induced draft fan can be introduced indoor by the air in outside atmosphere by air inducing fan housing.This on the one hand can be on main exhaust pipeline valve closing time continue to keep main induced draft fan stability and safety operation; Also can in medical waste gas treatment process, effectively reduce the exit gas gas flow temperature that enters main induced draft fan on the other hand.
Compare with the system of current medical exhaust-gas treatment and safety dumping, the medical waste gas that system of the present invention can produce reasons such as special gas releases in medical experiment heating, pharmacy solution evaporation, medical procedure is effectively processed and safety dumping.And can adopt and process targetedly means the medical waste gas of specific environment is adjusted, thereby reach better effect.The wide ranges of the processing medical treatment waste gas of this system, treatment effect is good, and has convenient for installation and maintenancely, invests relatively less feature.In addition, the present invention is described deduster, airtight heater, and reactor, filter, main induced draft fan and circulating fan are all integrated in a compact equipment box; Install at the integrated scene that is beneficial to of equipment.Described deduster, airtight heater, reactor, filter, main induced draft fan and circulating fan and between valve all according to the monitoring module of system configuration, carry out work, automatization level is high, can Check processing after the indices of waste gas.
Accompanying drawing explanation:
Accompanying drawing 1 is system organization structure chart of the present invention
The specific embodiment:
Referring to accompanying drawing 1, implement processing and the safety dumping system of a kind of medical waste gas of the present invention.This system can focus on medical waste gas comprehensively, adopt sterilization comprehensively, dedusting, deodorizing, the methods such as filtrations, biological safety is good, is not prone to pathogenic microorganisms and spreads.The wide ranges of treatable medical waste gas, treatment effect is good, and has convenient for installation and maintenancely, invests relatively less feature.System comprises the deduster 2 connecting successively, airtight heater 3, reactor 4, filter 5, main induced draft fan 6 and circulating fan 8.Described deduster 2, airtight heater 3, reactor 4, filter 5 and the gas inlet and outlet of air-introduced machine 6 are connected successively.The entrance of circulating fan 8 is connected with filter 5, and outlet is connected with reactor 4; In system, arrange temperature, pressure and flow sensor, and process measuring-signal by measurement module 9.Measurement module is connected to fetch with controller 13-18 with sensor and obtains measuring-signal.According to measuring-signal, 10 pairs of dedusters 2 of automatic control module, airtight heater 3, the duty of reactor 4 and Fan Equipment 6,8 is adjusted, to adapt to the needs of current medical exhaust-gas treatment.
The entrance of described deduster equipment can be connected to be needed, in waste gas bottle to be processed, also can adopt and directly be placed on and need to carry out in the room of medical waste gas.The outlet of deduster is connected on the entrance of airtight heater.Both directly adopt pipeline to connect.The entrance of described reactor is connected to the outlet of heater with pipeline.The entrance of described filter is connected to the outlet of reactor with pipeline.The two ends of reactor adopt bearing to connect.Reactor can be adjusted and lay level angle flexibly according to actual position of laying.
Implementing step 2 of the present invention is the process that the medical waste gas after deduster 2 is processed further heats by airtight heater 3.The additional temperature control system of heater of heater 3 can be controlled the power of heating, thereby heats uniformly entering the off-gas flows of heater 3; In heating process, control system module 10 regulates the heating power of the heater of heater 3 slowly to change, and the outlet temperature that realizes waste gas fluctuates in very little scope according to the temperature requirement of setting; In general, waste gas enters the occasion that the inlet temperature of deduster 2 can produce along with the temperature of environment and waste gas and changes to some extent, heater can be heated to waste gas according to the waste gas kind of required processing the temperature requirement (for example specific temperature) that meets setting, and fluctuate in very little scope, and then send from airtight heater 3 exits.Control system module 10 can be by operator (for example: certain specific temperature) need to set at any time this temperature requirement, thereby according to needing main component to be processed to obtain reaction temperature preferably in the waste gas of pre-treatment, thereby make can obtain higher treatment effeciency in follow-up waste gas reaction processing.What as mainly needed in waste gas, process is the more SO2 sour gas of content in gas componant, and airtight heater 3 outlet design temperatures are preferably 120 ℃.
In heating process, if there is situations such as overtemperatures, must report to the police.The alarm temperature (as 65 ℃) of surpass setting as heating-up temperature control system cuts off the power supply of heater, and by monitoring that screen prompt and other acousto-optic modes report to the police.The detection signal of airtight heater 3 comprises airtight calorifier inlets temperature signal, airtight heater outlet temperature signal, airtight heater electrical power signal.
Implementing step 3 of the present invention is exhaust-gas treatment course of reaction.Waste gas obtains after suitable reaction temperature, can enter reactor 4 and carry out the innoxious reaction treatment process of waste gas.Because medical waste gas may result from the evaporation of medical experiment heating, pharmacy solution, medical procedure special gas release etc., therefore wherein a large amount of pathogenic microorganisms be may contain, and various medicines, flue gas, soot dust granule and a large amount of small aerosol particle contained.So reactor 4 need to possess multiple reaction reagent, thereby can focus on all kinds of medical waste gas.In reactor 4, there is reagent spray device, conveniently the reaction reagent of preloaded is injected in reactor.Concrete, during the gas channel of off-gas flows by the inner distribution grid of installing of reactor 4, a plurality of vertical aperture on passage are sneaked in air-flow the pollutant reaction with waste gas by the droplet of reaction reagent, remove corresponding pollutant.Select suitable reaction reagent and can remove pathogenic microorganisms, drug particles, the soot dust granule in flue gas, the sulfide in flue dust and aerosol granule.Distribution grid can make the air current flow of medical waste gas more even, higher with the droplet mixing efficiency of reaction reagent.As to aerosol granule (being less than or equal to PM10), in the medical waste gas of 400000-450000/m3 content, remove pathogenic microorganisms, reaction reagent can be selected chloride 20ppm solution, is no more than 10 beats/min reacts according to spraying frequency.The spray amount of each reaction reagent is preferably 0.2ml.Detection signal in reactor 4 comprises reactor pressure signal and reactor outlet water capacity signal.
Implementing step 4 of the present invention is waste gas filtering process.Waste gas carries out, after harmless treatment, entering filter 5 at reactor 4.In filter 5, according to the traffic requirement of flow of process air, place the filtration active carbon of some.The placement amount of active carbon and modes of emplacement can all filter the reaction reagent in air-flow.The system that is 75m3/h to exhaust gas flow, the placement quantity of activated carbon is not less than 5kg; Along off-gas flows, flow through in path, the shortest length by active carbon is preferably 0.9m.Activated carbon adsorbs remaining droplet in the waste gas after reactor 4, and part solid granule and the sour gas that in reactor, may generate are adsorbed.In use for some time, the adsorption capacity of active carbon has certain decline.Can regularly the active carbon in filter 5 be changed or be regenerated according to the service condition of active carbon.The off-gas flows of filter 5 outlets detects and comprises filter outlet water capacity signal, filter outlet pollutant load detection signal and filter outlet bacteria containing amount detection signal.
Implementing step 5 of the present invention is EGR after processing.Generally, at waste gas, after filter 5, major pollutants and pathogenic microorganisms wherein are all disposed.But sometimes due to the major pollutants in medical waste gas and pathogenic microorganisms content too high, in filter 5 outlet, still contain more major pollutants and pathogenic microorganisms, fail to reach processing requirements.Therefore, need to be to filter outlet water capacity, filter outlet pollutant load and filter outlet bacteria containing amount detect and judge, if testing result does not meet processing requirements, valve 11 on the main exhaust pipeline that valve 12 on can ON cycle pipeline and main induced draft fan 6 connect is closed, and by circulating fan 8, the waste gas after processing is again imported in reactor 4 and is reacted through circulating line.If testing result meets processing requirements, that is to say that major pollutants and the pathogenic microorganisms of filter 5 outlets reaches processing requirements, close the valve 12 on circulating line, open the valve 11 on main exhaust pipeline, enter waste gas and discharge processing.
Implementing step 6 of the present invention is that after processing, waste gas is discharged.Major pollutants and the pathogenic microorganisms of filter 5 outlets reach after processing requirements, the valve opening on the main exhaust pipeline that main induced draft fan 6 connects.Waste gas after processing is device for transferring under the effect of main induced draft fan 6.When the valve 11 on main exhaust pipeline is closed, main induced draft fan can be introduced indoor by the air in outside atmosphere by air inducing fan housing 7.The stability and safety operation that this continues to keep main induced draft fan 6 while on the one hand can the valve 11 on main exhaust pipeline closing; Also can in medical waste gas treatment process, effectively reduce the exit gas gas flow temperature that enters main induced draft fan 6 on the other hand.
Implementing system of the present invention also needs measurement module 9 processing measuring-signals and automatic control module 10 to carry out deduster 2, airtight heater 3, and the equipment of reactor 4, filter 5, main induced draft fan 6 and circulating fan 8 is controlled and the switch of valve 11,12 is controlled.Measuring-signal comprises: deduster porch dustiness detection signal, deduster exit gas flow signal, airtight calorifier inlets temperature signal, airtight heater outlet temperature signal, airtight heater electrical power signal, reactor pressure signal, reactor outlet water capacity signal, filter outlet water capacity signal, filter outlet pollutant load detection signal, filter outlet bacteria containing amount detection signal, indoor environment air temperature signal, outdoor environment air temperature signal.Control signal comprises: the electrical power control signal of deduster, heater heating power control signal, the ejection frequency control signal of reaction reagent, the air inducing amount control signal of circulating fan and main induced draft fan.Measuring and control function also realizes by sensor and the controller 13-18 being distributed in various kinds of equipment.
Implementing system of the present invention can preferably remove in medical waste gas and contain pathogenic microorganisms, drug particles, the short grained occasion of soot dust granule, flue dust and aerosol.
Claims (9)
1. one kind is applicable to the processing of Hospital medical waste gas and the system of safety dumping, it is characterized in that comprising following part: the deduster connecting successively, airtight heater, reactor, filter, main induced draft fan and circulating fan, wherein the gas inlet and outlet of deduster, airtight heater, reactor, filter and air-introduced machine is connected successively; The entrance of circulating fan is connected with filter, and outlet is connected with reactor; Valve 12 is set between filter and circulating fan, valve 11 is set between filter and main induced draft fan; Described deduster, airtight heater, reactor, filter, main induced draft fan and circulating fan are all integrated in a compact equipment box;
The entrance of deduster equipment can be connected to be needed, in waste gas bottle to be processed, also can adopt to be directly placed on and need to carry out in the room of medical waste gas; The outlet of deduster is connected on the entrance of airtight heater, and both directly adopt pipeline to connect;
The entrance and exit of airtight heater all has temperature detecting head; The heating power of heater is controlled automatically according to temperature and the temperature difference of outlet and entrance.
In reactor, adopt the distribution grid that loads reaction reagent, reaction reagent can conveniently be replaced as required, and reaction reagent can add on distribution grid before exhaust-gas treatment He in processing procedure; The distribution grid of reactor is detachable; In distribution grid, there are a plurality of gas channels, on the wall perpendicular to gas passage, have a plurality of apertures;
In filter, according to the traffic requirement of flow of process air, place in advance the filtration active carbon of some.The placement amount of active carbon and modes of emplacement can all filter the reaction reagent in air-flow;
In system, arrange temperature, pressure and flow sensor, and obtain and process measuring-signal by measurement module, according to measuring-signal, automatic control module is to deduster, airtight heater, the duty of reactor and Fan Equipment is adjusted, to adapt to current medical exhaust-gas treatment demand.
2. be applicable to according to claim 1 the processing of Hospital medical waste gas and the system of safety dumping, it is characterized in that described deduster, airtight heater, reactor, filter, main induced draft fan and circulating fan and between valve under the control of the monitoring module of system configuration, work.
3. the processing of Hospital medical waste gas and the system of safety dumping of being applicable to according to claim 1, is characterized in that the entrance of described exhausting fan housing is placed in outdoor environment.
4. the processing of Hospital medical waste gas and the system of safety dumping of being applicable to according to claim 1, can adjust electrostatic potential by measure and control device, and discharge frequency and switch are adjusted the dust removing effects of deduster.
5. the processing of Hospital medical waste gas and the system of safety dumping of being applicable to according to claim 1.The Electrothermal ring that airtight heater adopts is placed on the inside wall of heater, and the inside and outside environmental sealing of heater is isolated; The externally fed of Electrothermal ring adopts Alternating Current Power Supply to control.
6. the processing of Hospital medical waste gas and the system of safety dumping of being applicable to according to claim 1, the power that it is characterized in that heater is to regulate according to set control point temperature, heating power is slowly to change.
7. the processing of Hospital medical waste gas and the system of safety dumping of being applicable to according to claim 1, is characterized in that the two ends of reactor adopt bearing to connect.Reactor can be adjusted and lay level angle flexibly according to actual position of laying.
8. the processing of Hospital medical waste gas and the system of safety dumping of being applicable to according to claim 1 is to gather to the measuring-signal of all connections simultaneously, do not adopt touring mode; The frequency of data acquisition is not less than 0.2 time/second.
9. for the processing of Hospital medical waste gas and a method for safety dumping, it is characterized in that comprising the following steps:
(1) waste gas dedusting is processed: first medical waste gas enters deduster under the effect of air inducing air-flow.The dust collection method that deduster adopts is to adopt electrostatic precipitation mode.The dust removing effects of deduster can be adjusted electrostatic potential, discharge frequency and switch according to the control device of system.Under the effect of control device, the electrostatic interaction of deduster is removed most dust particles of waste gas.The germ being adsorbed in waste gas in dust particle also will be removed thereupon;
(2) waste gas heating: the heating means of airtight heater are to adopt Electric heating.The Electrothermal ring that airtight heater adopts is placed on the inside wall of heater.The inside and outside environmental sealing of heater is isolated.The externally fed of Electrothermal ring adopts Alternating Current Power Supply to control.By the temperature control system that heater is additional, control heating source, to entering the off-gas flows of heater, heat uniformly; In heating process, the heating power that control system regulates heater to apply slowly changes, and the outlet temperature that realizes waste gas fluctuates in very little scope according to the temperature requirement of setting; In general, the occasion that the inlet temperature of waste gas produces along with the temperature of environment and waste gas and changing to some extent, but can, according to the waste gas type requirements of processing, and waste gas is heated to a specific temperature, from exit, send again.Can conveniently adjust Temperature Setting, make main composition to be processed in waste gas obtain reaction temperature preferably;
(3) exhaust-gas treatment course of reaction: waste gas obtains after suitable reaction temperature, can enter reactor and carry out the innoxious reaction treatment process of waste gas.Owing to may resulting from the evaporation of medical experiment heating, pharmacy solution, medical procedure special gas release etc. in medical waste gas.In medical treatment waste gas, a large amount of pathogenic microorganisms be may contain, and various medicines, flue gas, soot dust granule and a large amount of small aerosol particle contained.So reactor need to possess multiple reaction reagent, thereby can focus on all kinds of medical waste gas.In reactor, there is reagent spray device, conveniently the reaction reagent of preloaded is injected in reactor.During gas channel in the distribution grid that off-gas flows is installed by inside reactor, a plurality of vertical aperture on passage are sneaked in air-flow the pollutant reaction with waste gas by the droplet of reaction reagent, remove corresponding pollutant.Select suitable reaction reagent and can remove pathogenic microorganisms, drug particles, the soot dust granule in flue gas, the sulfide in flue dust and aerosol granule.Distribution grid can make the air current flow of medical waste gas more even, higher with the droplet mixing efficiency of reaction reagent;
(4) waste gas filtering process: waste gas carries out, after harmless treatment, entering filter at reactor.In filter, according to the traffic requirement of flow of process air, place the filtration active carbon of some.The placement amount of active carbon and modes of emplacement can all filter the reaction reagent in air-flow.Activated carbon to waste gas, in reaction, also have afterwards a small amount of remaining droplet to adsorb, and part granule and the sour gas that may generate in reaction are adsorbed.The effect of activated carbon is a small amount of microorganism, granule, droplet and the sour gas also likely existing in purifying exhaust air thoroughly.In use for some time, the activity of active carbon can decline.Now, need to the active carbon in filter be changed or be regenerated;
(5) process rear EGR: generally, after filter, major pollutants and pathogenic microorganisms wherein are all disposed at waste gas.But sometimes due to the major pollutants in medical waste gas and pathogenic microorganisms content too high, may still contain more major pollutants and pathogenic microorganisms at filter outlet, fail to reach processing requirements.Now can pass through circulating line by circulating fan again imports in reactor and reacts.Now, the valve opening on circulating line, the valve closing on the main exhaust pipeline that main induced draft fan connects.Until the major pollutants of filter outlet and pathogenic microorganisms reach processing requirements, then close the valve on circulating line, open the valve on main exhaust pipeline;
(6) processing rear waste gas discharges: the major pollutants of filter outlet and pathogenic microorganisms reach after processing requirements, the valve opening on the main exhaust pipeline that main induced draft fan connects.Waste gas after processing is device for transferring under the effect of main induced draft fan.During valve closing on main exhaust pipeline, main induced draft fan can be introduced indoor by the air in outside atmosphere by air inducing fan housing.This on the one hand can be on main exhaust pipeline valve closing time continue to keep main induced draft fan stability and safety operation; Also can in medical waste gas treatment process, effectively reduce the exit gas gas flow temperature that enters main induced draft fan on the other hand.
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