CN112254444B - Vehicle drying and sterilizing system and method - Google Patents
Vehicle drying and sterilizing system and method Download PDFInfo
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- CN112254444B CN112254444B CN202011115278.5A CN202011115278A CN112254444B CN 112254444 B CN112254444 B CN 112254444B CN 202011115278 A CN202011115278 A CN 202011115278A CN 112254444 B CN112254444 B CN 112254444B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/02—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in buildings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/10—Temperature; Pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/001—Heating arrangements using waste heat
- F26B23/002—Heating arrangements using waste heat recovered from dryer exhaust gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/003—Handling, e.g. loading or unloading arrangements for articles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses a vehicle drying and sterilizing system and a vehicle drying and sterilizing method. And then, the air after primary heating is heated for the second time by using the heat generated by gas combustion, so that the temperature of the drying airflow is increased to the preset drying temperature. The combination of the spray chamber and the heat pump is used for recovering waste heat and removing dust of flue gas generated by gas combustion, and the recovered heat is used for heating mixed air for the first time. Meanwhile, the dried partial exhaust air is used as an oxidant to enter a combustor to be mixed with fuel gas for combustion. Compared with the common sterilization system which directly utilizes a gas-heated air heater or a diesel air heater as a heat source, the invention realizes the cascade application of the energy source, carries out combustion treatment on sterilization exhaust air, treats combustion flue gas, recovers the waste heat in the flue gas, reduces the fuel consumption and improves the sterilization efficiency.
Description
Technical Field
The invention relates to a vehicle drying and sterilizing system and method for heating air by heat pump composite gas, belonging to the field of energy engineering and chemical engineering.
Background
At present, frequent epidemic situations seriously affect the life and property safety of people, such as new crown pneumonia, African swine fever of pig breeding industry and the like.
In the process of preventing and controlling the epidemic situation, the sterilization work of traffic vehicles entering and leaving the epidemic area is very important for controlling the epidemic situation. Related conditions of African swine fever prevention and control work published by 11-23.2018 by the rural agricultural department show that 46% of the 68 pig epidemic situations of which the epidemic sources are found in China are the people and vehicles with virus transmission, and the people and vehicles with virus transmission is the most main mode for spreading the current epidemic situations. In the face of the epidemic situation with strong infectivity and great harm, the vehicle personnel entering and exiting the epidemic area need to be killed, so as to prevent the spread of the epidemic situation.
If the vehicle is not dried and killed after being cleaned, a large amount of bacteria and viruses are easy to carry and breed at the head, the rail, the chassis, the tires and other places of the vehicle where water is easy to accumulate. In order to deal with the transregional transmission of the African swine fever virus or other infectious diseases carried by the transport vehicles, a disinfection device aiming at the transport vehicles needs to be developed.
Patent CN 210688967U discloses a vehicle drying and sterilizing device, which is provided with a plurality of burners in the drying chamber, and the plurality of burners are evenly arranged on the side wall of the drying chamber. The drying vehicle in the integrally sealed drying environment is created, and disinfection is realized. In the operation process of the device, the exhaust air is used for taking away water vapor in a room, and a large amount of exhaust air is directly discharged to the outside, so that on one hand, a large amount of heat energy can be taken away, and the energy consumption of the whole system is high; on the other hand, biological pollutants such as pathogenic bacteria and viruses are easily carried in the exhaust air, and secondary pollution is easily caused by direct exhaust.
Patent CN 210625168U discloses a vehicle drying device, produces the hot gas flow through setting up a plurality of gas combustion wares in the closed stoving room and dries the vehicle, is equipped with the drying tube on the closed stoving room and is used for the dehumidification, and the hot gas flow of drying can be retrieved and is recycled. Although the above-described method recovers and utilizes heat energy, the desiccant filled in the drying pipe needs to be subjected to a certain treatment after dehumidification is completed, and is not easily reused. In addition, since the moisture content of the exhaust air of the drying room is high and a large amount of pollutants are accompanied, the desiccant pollution can be caused by dehumidification by using the desiccant.
Therefore, a drying device for a vehicle, which can perfectly consider the exhaust heat recovery and can safely and effectively eliminate harmful substances, is lacking at present.
Disclosure of Invention
The invention aims to provide a vehicle drying and sterilizing system considering exhaust heat recovery and biological safety. The heat pump is introduced for heat supply, the exhaust air is introduced into the combustion system for disinfection, the combustion flue gas is subjected to spray heat recovery, the energy utilization efficiency of the system is improved, and the technical problems of high operation cost and secondary exhaust air pollution of the existing vehicle sterilization system are solved.
In order to achieve the above purpose, the invention provides the following technical scheme:
a vehicle drying and sterilizing system comprises a drying room, a first air inlet, a return air inlet and an air outlet, wherein the drying room is used for parking a vehicle to be sterilized;
the hot air generating system comprises heating equipment, wherein the heating equipment heats inlet air by using a heat source and then leads the inlet air into the drying room through a first air inlet;
the exhaust treatment system comprises a burner, wherein an air inlet of the burner is connected with the air outlet, exhaust air flowing out of the drying room supports combustion in the burner, first high-temperature flue gas is generated at an air outlet of the burner and serves as a heat source of the heating equipment to provide heat, and the first high-temperature flue gas is cooled into first medium-temperature flue gas after heat supply and flows out of the heating equipment;
the waste gas treatment system comprises a spray tower and a heat pump system, wherein the first medium-temperature flue gas enters the spray tower from a gas inlet of the spray tower to be subjected to dust removal and temperature reduction and then is discharged; the heat pump system comprises a condenser and a water storage tank, the condenser is used as a heat source of the heating equipment to provide heat, the water storage tank is located below the spray tower and used for containing hot water after spraying first medium-temperature flue gas, and a first evaporator is arranged in the water storage tank and used for collecting waste heat of water in the water storage tank.
Further, in the invention, the hot air generating system comprises a condenser and an air-flue gas heat exchanger, an air inlet of the condenser is connected with an air return inlet, an air outlet of the condenser is connected with an air inlet of the air-flue gas heat exchanger, and an air outlet of the air-flue gas heat exchanger is connected with a first air inlet.
Further, in the invention, the smoke inlet of the air-smoke heat exchanger is connected with the air outlet of the burner, and the smoke outlet of the air-smoke heat exchanger is connected with the air inlet of the spray tower.
Furthermore, in the invention, the system also comprises a fresh air fan, and an air outlet of the fresh air fan is connected with an air inlet of the condenser.
Further, in the invention, the system also comprises a first temperature measuring element, a second temperature measuring element, a controller, a first induced draft fan, a second induced draft fan and a gas opening control valve;
the first induced draft fan is arranged on a pipeline between the air outlet and the air inlet of the combustor;
the second induced draft fan is arranged on a pipeline between the first air inlet and the air outlet of the air-flue gas heat exchanger;
the first temperature measuring element is arranged between the second induced draft fan and the first air inlet, and the second temperature measuring element is arranged between the air outlet of the condenser and the air inlet of the air-flue gas heat exchanger; the first temperature measuring element and the second temperature measuring element are used for detecting the temperature of the drying airflow at the inlet and the outlet of the air-flue gas heat exchanger and feeding the temperature back to the controller;
the gas opening control valve is arranged at the gas inlet of the burner;
the controller adjusts the gas opening degree control valve and the opening degree of the first induced draft fan according to the received temperature of the inlet air.
Another aspect of the present invention provides a vehicle drying sterilization method corresponding to the above system, including:
hot air is introduced into the drying room to kill vehicles in the drying room, and a part of return air generated in the drying room is used as inlet air and is circularly introduced into the drying room after being heated;
the intake air is heated by the following method:
the air intake is heated for the first time by a condenser in a heat pump system and then heated for the second time by an air-smoke heat exchanger; wherein the heat source in the air-flue gas heat exchanger is from the other part of exhaust air generated in the drying room and is used as a first high-temperature flue gas formed after combustion of a combustion improver;
and after heat exchange, the first high-temperature flue gas is sprayed, dedusted, cooled and discharged, and the energy recovery is carried out on hot water generated by spraying through a first evaporator in the heat pump system.
Has the advantages that:
according to the technical scheme, the vehicle drying and sterilizing system and the vehicle drying and sterilizing method for heating air by utilizing heat pump composite gas have the following advantages compared with the prior art:
1. part of exhaust air in the drying room enters a burner as a combustion improver to be directly combusted with gas, and the burner carries out combustion treatment on pollutants from the drying room entrained in the exhaust air, so that the polluted gas from the drying room cannot be directly discharged, and the environment is friendly; the moisture content of the discharged air is different from that of the air, and other components are not different from the air. Therefore, the exhaust air can be introduced into the gas burner to be mixed with the gas for combustion, and pollutants in the exhaust air can be completely killed by the high-temperature flue gas temperature generated by combustion. (ii) a
2. The burner burns to obtain high-temperature flue gas, one part of the energy of the flue gas comes from the gas and the other part comes from the heat carried by the exhaust air, so that the high-temperature flue gas is further used as a heat source to heat the gas to be fed into the drying room, and the energy for introducing the drying air for preheating can be saved;
3. the heat pump is arranged to utilize the environment heat and the flue gas waste heat, so that the environment heat and the flue gas waste heat are converted into usable heat energy, and the energy consumption of the whole system is reduced.
It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of this disclosure unless such concepts are mutually inconsistent.
The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description taken in conjunction with the accompanying drawings. Additional aspects of the present invention, such as features and/or advantages of exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of specific embodiments in accordance with the teachings of the present invention.
Drawings
The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic system diagram of the present invention.
The figure includes: 1-air return inlet; 2-return air opening degree control valve; 3-a first temperature measuring element; 4-a fresh air machine; 5-a condenser; 6-a compressor; 7-a circulating water pump; 8-a second reservoir water outlet; 9-a chimney; 10-a sprayer; 11-a spray tower; 12-flue gas inlet; 13-a water inlet of a reservoir; 14-a feed pump; 15-a water reservoir; 16-a first evaporator; 17-a first reservoir outlet; 18-a second evaporator 18; 19-a first windbox; 20-a throttling element; 21-a second temperature measuring element; 22-a second windbox; 23-air-flue gas heat exchanger; 24-a smoke outlet; 25-a controller; 26-a burner air inlet; 27-a gas opening control valve; 28-a burner; 29-a second induced draft fan; 30-a first induced draft fan; 31-a first air inlet; 32-air outlet; 33-drying room.
Detailed Description
In order to better understand the technical content of the present invention, specific embodiments are described below with reference to the accompanying drawings.
In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be appreciated that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways, as the disclosed concepts and embodiments are not limited to any one implementation. In addition, some aspects of the present disclosure may be used alone, or in any suitable combination with other aspects of the present disclosure.
Summary of the application
At present, the aquaculture faces many biosafety problems, and if the vehicle is not dried and killed after being cleaned, a large amount of bacteria and viruses can be carried and bred at the head, the rail, the chassis, the tires and other parts of the vehicle where water is easy to accumulate.
The existing vehicle drying sterilizing equipment has the problems of unreasonable energy utilization and great waste.
In view of the above technical problems, the technical solution provided by the present application has the following general idea:
a vehicle drying sterilization system comprises the following components:
and the drying room 33 comprises a first air inlet 31, a return air inlet 1 and an air outlet 32, and the drying room 33 is used for parking the vehicle to be sterilized.
The hot air generating system comprises heating equipment, wherein the heating equipment heats inlet air by using a heat source and then leads the inlet air into the drying room 33 through a first air inlet 31.
Exhaust treatment system, including combustor 28, the air intake of combustor 28 is connected with above-mentioned air exit 32, and the exhaust that flows in the stoving room 33 is combustion-supporting in combustor 28 first high temperature flue gas that the air outlet of combustor 28 generated, first high temperature flue gas is as the heat source of above-mentioned heating equipment in order to provide heat, cooling down after the heat supply of first high temperature flue gas is first middle temperature flue gas and flows out from heating equipment.
The waste gas treatment system comprises a spray tower 11 and a heat pump system, wherein the first medium-temperature flue gas enters the spray tower 11 from a gas inlet of the spray tower 11 for dedusting and cooling and then is discharged; the heat pump system comprises a condenser 5 and a water storage tank 15, the condenser 5 serves as a heat source of the heating device to provide heat, the water storage tank 15 is located below the spray tower 11 and used for containing hot water after spraying the first medium-temperature flue gas, and a first evaporator 16 is arranged in the water storage tank 15 and used for collecting waste heat of water in the water storage tank 15.
The system takes the task of heating the inlet air entering the drying room 33 through the exhaust treatment system and the waste gas treatment system together, and makes full use of the residual heat in the return air and the flue gas, so that the energy utilization rate is higher.
The whole system has good environmental protection performance, including that the exhaust treatment system burns biological pollutants in exhaust air when generating high-temperature flue gas, and the exhaust treatment system sprays and then discharges pollutants such as sulfide, carbon black and other solid particles generated by combustion in the first medium-temperature flue gas, so that the whole system does not pollute the environment in the operation process.
Having thus described the general principles of the present application, various non-limiting embodiments thereof will now be described in detail with reference to the accompanying drawings.
Example 1
As shown in fig. 1, in the embodiment of the present invention, the main wall of the drying room 33 is made of a heat insulating material, and the air outlet of the drying room 33 includes an air return opening 1 and an air outlet 32. As shown in the drawing, since the vehicle is parked on the ground of the drying room 33, the first air inlet 31 is disposed at a position close to the ground, and the two air outlets are disposed at a position close to the roof. The air supply mode of the drying room 33 adopts a downward-feeding and upward-returning air supply mode, the principle that hot air is higher in density than cold air is utilized, natural convection is easy to form, and the downward-feeding mode is favorable for hot air flow to scour a vehicle chassis so that disinfection is more comprehensive.
Specifically, the air outlet 32 is connected with an air inlet of the combustor 28, and a first induced draft fan 30 is arranged on the connecting pipeline and used for introducing return air in the air outlet 32 into the combustor 28.
The hot air generating system comprises a condenser 5 and an air-flue gas heat exchanger 23, a first air box 19 is arranged outside a condensation pipe of the condenser 5, and a pipeline in the first air box 19 is used for providing air to enter and exit. An air inlet of the condenser 5 is connected with the air return inlet 1, a return air opening control valve 2 is further arranged on a connected pipeline, and the return air opening control valve 2 can be used for controlling the air volume overflowing from the air return inlet 1. The system also comprises a fresh air fan 4, wherein an air outlet of the fresh air fan 4 is also connected with an air inlet of the condenser 5, so that return air from the return air inlet 1 and fresh air from the fresh air fan 4 are combined into gas to be fed into the drying room 33.
Gas is heated for the first time by the working medium with higher temperature in the condenser 5 through the condenser 5, the gas temperature rises, the air outlet of the condenser 5 is connected with the air inlet of the air-flue gas heat exchanger 23, the gas is heated for the second time by the first high-temperature flue gas with higher temperature in the air-flue gas heat exchanger 23 through the air-flue gas heat exchanger 23, the gas temperature further rises, the air outlet of the air-flue gas heat exchanger 23 is connected with the first air inlet 31, a second induced draft fan 29 is arranged in the pipeline, and the high-temperature gas is guided to the first air inlet 31 and enters the drying room 33.
The air-flue gas heat exchanger 23 is externally provided with a second air box 22, the second air box 22 is provided with two channels, one channel is used for providing air to enter and exit and comprises an air inlet and an air outlet, and the other channel is used for providing flue gas to enter and exit and comprises a flue gas outlet 24 and a flue gas inlet. Wherein the smoke inlet of the air-smoke heat exchanger 23 is connected with the air outlet of the burner 28, and the smoke outlet 24 of the air-smoke heat exchanger 23 is connected with the air inlet of the spray tower 11.
Specifically, the exhaust air in the exhaust outlet 32 contains rich oxygen, water vapor and a large amount of biological pollutants, and the exhaust air is introduced into the combustor 28 to be used as a combustion improver to ignite the fuel gas for combustion. As shown in the figure, the first high temperature flue gas is generated during the combustion of the fuel gas, meanwhile, a large amount of biological pollutants in the exhaust air are combusted, the waste heat in the exhaust air is converted into the energy of the first high temperature flue gas, and the inlet air entering the drying room 33 is heated in the air-flue gas heat exchanger 23.
The first high-temperature flue gas is subjected to heat exchange and cooling in the air-flue gas heat exchanger 23 to obtain first medium-temperature flue gas, at this time, a large amount of products of combustion gas in the first medium-temperature flue gas comprise water vapor, smoke dust and a large amount of waste heat, part of pollutants in the smoke dust are not suitable for being discharged into the air, and the large amount of waste heat needs to be recovered as far as possible.
Therefore, the system further sprays the first medium-temperature flue gas and recovers heat through the matching of the spray tower 11 and the heat pump system.
As shown, the heat pump system includes a compressor 6, a condenser 5, a throttling element 20, a first evaporator 16 and a second evaporator 18. The working medium outlet of the compressor 6 is communicated with the working medium inlet of the condenser 5, the working medium outlet of the condenser 5 is communicated with the working medium inlet of the throttling element 20, the working medium outlet of the throttling element 20 is communicated with the working medium inlet of the second evaporator 18, and the working medium outlet of the second evaporator 18 is communicated with the working medium inlet of the first evaporator 16. The working medium outlet of the first evaporator 16 is communicated with the liquid inlet of the compressor 6.
As shown in the figure, a flue gas inlet 12 is arranged on the spray tower 11 for introducing flue gas from an air-flue gas heat exchanger 23 into the spray tower 11, a sprayer 10 is arranged above the inside of the spray tower 11, and a chimney 9 is arranged at the top of the spray tower 11.
A reservoir 15 is arranged below the spray tower 11, a water inlet 13 of the reservoir obtains water source through an external water supply pump 14, and when water drainage is needed, the water can be discharged through a first reservoir water outlet 17. A second reservoir water outlet 8 is arranged in the reservoir 15, the second reservoir water outlet 8 is connected with the sprayer 10, a circulating water pump 7 is further arranged on a pipeline connecting the second reservoir water outlet 8 and the sprayer 10, and water in the reservoir 15 passes through the second reservoir water outlet 8 to serve as a water source of the sprayer 10.
The sprayed spraying liquid contacts the first medium-temperature flue gas in the spraying tower 11, exchanges heat and quality, and then is gathered into the bottom reservoir 15, the first medium-temperature flue gas is cooled, and meanwhile, particles can be removed, so that the gas discharged from the chimney 9 is environment-friendly. The spray liquid is collected in the reservoir 15 and the first evaporator 16 absorbs the heat of the hot water in the reservoir 15, ensuring that the water level in the reservoir 15 is always at the level of the second evaporator 18.
The refrigerant in the first evaporator 16 can absorb heat energy to complete waste heat recovery; the second evaporator 18 is exposed to the environment and the second evaporator 18 is used to absorb heat energy of low grade in the environment. The compressor 6 of the heat pump inputs electric energy to convert low-level heat energy in the environment and the reservoir 15 into high-level heat energy of drying airflow, the energy is fully recycled in the whole cycle, and the energy consumption of the whole system is reduced.
Further, in the above embodiment, the system further includes a temperature sensor, a controller 25, a second induced draft fan 29 and a gas opening degree control valve 27; the temperature sensor is arranged in the hot air generating system and used for detecting the temperature of the inlet air and feeding the temperature back to the controller 25; the second induced draft fan 29 is arranged on a pipeline between the first air inlet 31 and the air outlet of the air-flue gas heat exchanger 23; the gas opening control valve 27 is arranged at the gas inlet 26 of the burner 28; the controller 25 adjusts the gas opening degree control valve 27 and the opening degree of the first induced draft fan 30 according to the temperature of the received intake air.
Specifically, the temperature sensor comprises a first temperature measuring element 3 and a second temperature measuring element 21, wherein the first temperature measuring element 3 is arranged at a first air inlet 31 of the drying room 33 and is used for detecting the temperature of the inlet air finally entering the drying room 33, and the second temperature measuring element 21 is arranged between the condenser 5 and the air-flue gas heat exchanger 23 and is used for detecting the temperature of the air after primary heating.
Both of the temperature sensors transmit the measured data to a controller 25, which transmits the measured data to the controller
The opening degree of the gas opening degree control valve 27 is adjusted according to the temperature of the received intake air 25, so that the gas intake amount can be reasonably adjusted.
Examples 2,
Another embodiment of the invention is a vehicle drying killing method, the method utilizes hot air to be introduced into the drying room 33 to kill the vehicle in the drying room 33, and a part of return air generated in the drying room 33 is used as inlet air and is circularly introduced into the drying room 33 after being heated;
the intake air is heated by the following method:
the intake air is heated for the first time by a condenser 5 in the heat pump system and then heated for the second time by an air-flue gas heat exchanger 23; wherein the heat source in the air-flue gas heat exchanger 23 is from the other part of the exhaust air generated in the drying room 33 and is used as the first high-temperature flue gas formed after combustion of a combustion improver;
and after heat exchange, the first high-temperature flue gas is subjected to spraying, dedusting and cooling and then is discharged, and energy recovery is performed on hot water generated by spraying through a first evaporator 16 in the heat pump system.
Based on the drying method, the whole drying process is as follows:
1. using a heat value of 35.588MJ/Nm3As fuel for the gas burner 28;
2. part of return air with the dry bulb temperature of 30 ℃ and the relative humidity of 65 percent enters the first air box 19 from the return air inlet 1 and exchanges heat with the condenser 5. The drying air flow is converted into a dry bulb temperature of 65 ℃ and a relative humidity of 65%.
3. The second temperature measuring element 21 measures the temperature of the drying airflow and forms a feedback signal to be transmitted to the controller 25. The controller 25 calculates the introduced amount of combustion air and the introduced amount of fuel gas.
4. Partial exhaust air with the dry bulb temperature of 30 ℃ and the relative humidity of 65 percent enters the combustor 28 through the exhaust outlet 32 as a combustion improver to be mixed and combusted with fuel gas to generate first high-temperature flue gas with the temperature of about 260 ℃;
5. the drying air flow with the temperature of 65 ℃ and the relative humidity of 65 percent enters the second air box 22 and is heated to 80 ℃ through the outer side of the air-flue gas heat exchanger 23;
6 the first temperature measuring element 3 measures the temperature of the air flow and forms a feedback signal to be transmitted to the controller 25. The controller 25 calculates the introduction amount of the oxidizer and the introduction amount of the fuel gas.
7. The drying airflow is heated to reach the preset temperature and then is sent into a drying room 33 by a second induced draft fan 29;
8. the temperature of the flue gas after heat exchange is about 120 ℃, and the high-temperature flue gas enters a spray chamber. Cooling the flue gas with the temperature of 15 ℃ to remove dust to 20 ℃ and discharging the flue gas to the atmosphere;
9. the refrigerant in the second evaporator 18 exchanges heat with the environment, and the refrigerant in the second evaporator 18 is partially vaporized;
10. the water with the temperature of 15 ℃ in the reservoir 15 is heated to 80 ℃, enters the reservoir 15 at the bottom and exchanges heat with the first evaporator 16, and the working medium in the first evaporator 16 is completely vaporized;
11. clean water flow is introduced from a water inlet 13 of the reservoir 15, the water solution after dust removal is discharged from a water outlet 17 of the first reservoir at the bottom, and the discharged hot water can be used for other purposes after being treated.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention should be determined by the appended claims.
Claims (2)
1. A vehicle drying sterilization system is characterized by comprising
The drying room comprises a first air inlet, a return air inlet and an air outlet, and is used for parking a vehicle to be sterilized;
the hot air generating system comprises heating equipment, wherein the heating equipment heats inlet air by using a heat source and then leads the inlet air into the drying room through a first air inlet;
the exhaust treatment system comprises a burner, wherein an air inlet of the burner is connected with the air outlet, exhaust air flowing out of the drying room supports combustion in the burner, first high-temperature flue gas is generated at an air outlet of the burner and serves as a heat source of the heating equipment to provide heat, and the first high-temperature flue gas is cooled into first medium-temperature flue gas after heat supply and flows out of the heating equipment;
the waste gas treatment system comprises a spray tower and a heat pump system, wherein the first medium-temperature flue gas enters the spray tower from a gas inlet of the spray tower to be subjected to dust removal and temperature reduction and then is discharged; the heat pump system comprises a condenser and a reservoir, the condenser is used as a heat source of the heating equipment to provide heat, the reservoir is positioned below the spray tower and used for containing hot water after spraying the first medium-temperature flue gas, and a first evaporator is arranged in the reservoir and used for collecting waste heat of water in the reservoir;
the hot air generating system comprises a condenser and an air-smoke heat exchanger, wherein an air inlet of the condenser is connected with an air return inlet, an air outlet of the condenser is connected with an air inlet of the air-smoke heat exchanger, and an air outlet of the air-smoke heat exchanger is connected with a first air inlet;
the smoke inlet of the air-smoke heat exchanger is connected with the air outlet of the burner, and the smoke outlet of the air-smoke heat exchanger is connected with the air inlet of the spray tower;
the system also comprises a fresh air fan, wherein an air outlet of the fresh air fan is connected with an air inlet of the condenser;
the system also comprises a first temperature measuring element, a second temperature measuring element, a controller, a first induced draft fan, a second induced draft fan and a gas opening control valve;
the first induced draft fan is arranged on a pipeline between the air outlet and the air inlet of the combustor;
the second induced draft fan is arranged on a pipeline between the first air inlet and the air outlet of the air-flue gas heat exchanger;
the first temperature measuring element is arranged between the second induced draft fan and the first air inlet, and the second temperature measuring element is arranged between the air outlet of the condenser and the air inlet of the air-flue gas heat exchanger; the first temperature measuring element and the second temperature measuring element are used for detecting the temperature of the drying airflow at the inlet and the outlet of the air-flue gas heat exchanger and feeding the temperature back to the controller;
the gas opening control valve is arranged at the gas inlet of the burner;
the controller adjusts the opening degree of the gas opening degree control valve and the opening degree of the first induced draft fan according to the temperature of the received inlet air;
the heat pump system also comprises a second evaporator, and the second evaporator is exposed to the environment;
the first air inlet is arranged at a position close to the ground, and the air return inlet and the air outlet are arranged at positions close to the roof.
2. The drying sterilization method for the vehicle adopts the drying sterilization system as claimed in claim 1,
hot air is introduced into the drying room to kill vehicles in the drying room, and a part of return air generated in the drying room is used as inlet air and is circularly introduced into the drying room after being heated;
the intake air is heated by the following method:
firstly, the inlet air is heated for the first time by a condenser in a heat pump system, and then is heated for the second time by an air-flue gas heat exchanger; wherein the heat source in the air-flue gas heat exchanger is from the first high-temperature flue gas formed after the other part of exhaust air generated in the drying room is burnt as an oxidant;
and after heat exchange, the first high-temperature flue gas is sprayed, dedusted, cooled and discharged, and the energy recovery is carried out on hot water generated by spraying through a first evaporator in the heat pump system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011115278.5A CN112254444B (en) | 2020-10-15 | 2020-10-15 | Vehicle drying and sterilizing system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011115278.5A CN112254444B (en) | 2020-10-15 | 2020-10-15 | Vehicle drying and sterilizing system and method |
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| Publication Number | Publication Date |
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| CN112254444A CN112254444A (en) | 2021-01-22 |
| CN112254444B true CN112254444B (en) | 2022-02-25 |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6183589B2 (en) * | 2013-05-23 | 2017-08-23 | 株式会社ノーリツ | Heat pump water heater |
| CN105258144B (en) * | 2015-10-19 | 2017-12-01 | 北京建筑大学 | A kind of fountain flue gas waste heat recovery apparatus |
| CN106152822A (en) * | 2016-08-18 | 2016-11-23 | 华南理工大学 | A kind of bathroom residual neat recovering system using direct-fired sorption type heat pump and method |
| CN210688949U (en) * | 2019-10-21 | 2020-06-05 | 武汉红之星智农科技有限公司 | Intelligent disinfection control system |
| CN211012141U (en) * | 2019-12-04 | 2020-07-14 | 长沙春林环保设备有限公司 | Car disinfection stoving room |
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