CN207307454U

CN207307454U - Air pretreatment system

Info

Publication number: CN207307454U
Application number: CN201721047892.6U
Authority: CN
Inventors: 杨志刚; 李镇江; 谢彪; 王宏; 江源钢; 李星; 叶莉; 郑君; 唐晓芳
Original assignee: CHENGDU JINKAI BIOLOGICAL ENGINEERING Co Ltd
Current assignee: CHENGDU JINKAI BIOLOGICAL ENGINEERING Co Ltd
Priority date: 2017-08-21
Filing date: 2017-08-21
Publication date: 2018-05-04
Anticipated expiration: 2027-08-21

Abstract

The utility model discloses a kind of air pretreatment system, including the first air hose, the second air hose, filtration apparatus, centrifugal blower, refrigerating plant, dehydrating unit, water tank and interim air accumulator；The refrigerating plant includes frequency-changeable compressor, solenoid operated four-way valve, the first condenser, throttling arrangement and the first evaporator, the dehydrating unit includes the second condenser, the second evaporator and the 3rd evaporator, the liquid outlet of second condenser connects the inlet of the second evaporator and the 3rd evaporator, and the inlet of second condenser connects the liquid outlet of the second evaporator and the 3rd evaporator；Filtration apparatus, centrifugal blower, the second evaporator and the 3rd evaporator is stated to set gradually in entrance to the export direction of the first air hose, the outlet connection gas-liquid separator of first air hose, the exhaust outlet of the gas-liquid separator connects the air inlet of the second air hose and interim air accumulator, the sewage draining exit of the exhaust outlet access gas-liquid separator of the interim air accumulator；First condenser is arranged in the second air hose.

Description

Air pretreatment system

Technical field

Microbial fermentation apparatus field is the utility model is related to, particularly a kind of air pretreatment system.

Background technology

In microbial fermentation, the fermentation of aerobic strain is particularly, it is necessary to convey oxygen into fermentation tank, and to oxygen Quality has certain requirement, it is necessary to clean dry.At present, during microbial fermentation, the air of conveying is usually needed by drying Reason, mainly uses air dryer, however, existing air dryer is complicated, takes up a large area, and function is simple, greatly Partial air drier is only merely simply to be filtered and be air-dried processing, and the air after processing is unable to reach microorganism The demand of fermentation, and it is big using extra heating unit, energy consumption during dried air reheating.

Utility model content

To solve problems of the prior art, the utility model provides a kind of air pretreatment system, its structure Simply, by filtering and dielectric barrier discharge processing before humid air drying, good impurity removing effect, the air after processing is cleaner, and The air heat to be discharged in itself using system after dehumidifying is heated, energy conservation and environmental protection.

The technical solution adopted in the utility model is：

A kind of air pretreatment system, including the first air hose, the second air hose, filtration apparatus, centrifugal blower, refrigerating plant, Dehydrating unit, water tank and interim air accumulator；The frequency conversion that the refrigerating plant includes setting gradually along refrigerant flow direction is compressed Mechanical, electrical magnetic four-way valve, the first condenser, throttling arrangement and the first evaporator, the dehydrating unit include the second condenser, second Evaporator and the 3rd evaporator, the liquid outlet of second condenser connect the second evaporator and respectively after ratio triple valve The inlet of three evaporators, the inlet of second condenser connect the second evaporator and the 3rd evaporation respectively after triple valve The liquid outlet of device；First evaporator and the second condenser are arranged in water tank；The filtration apparatus, centrifugal blower, second are steamed Hair device and the 3rd evaporator are set gradually in entrance to the export direction of the first air hose, the outlet connection gas-liquid of first air hose Separator, the exhaust outlet of the gas-liquid separator connect the air inlet of the second air hose and interim air accumulator, institute respectively after threeway The sewage draining exit of the exhaust outlet access gas-liquid separator of interim air accumulator is stated, the air inlet and exhaust outlet of the interim air accumulator are all provided with There is solenoid valve；First condenser is arranged in the second air hose.

Preferably, the filtration apparatus includes strainer and dielectric barrier discharge；The dielectric barrier discharge includes Multiple electrode plates radially set along the first air hose, are evenly equipped with multiple ventholes on the electrode plate, the electrode plate is equipped with Anode terminal and cathode terminal, the anode terminal connect external high pressure DC power supply, the cathode terminal ground connection.

Preferably, the electrode plate is internally provided with medium discharge room, on two opposite walls of the medium discharge room point Not She You the first plate electrode and the second plate electrode, be provided with first plate electrode multiple convex to the second plate electrode The cone tooth risen, first plate electrode, cone tooth, the second plate electrode surface and electrode plate stomata inner surface on cover There is insulating medium layer, first plate electrode is electrically connected with anode terminal, second plate electrode and cathode terminal It is electrically connected.

Preferably, the exit of second air hose is equipped with Temperature Humidity Sensor.

The beneficial effects of the utility model are：

1st, simple in structure, easy to use, air first passes through filtering and dielectric barrier discharge processing, removal of impurities before dehumidification treatments Effect is good, the air high purity after processing.

2nd, refrigerating fluid is proportionally distributed to by ratio triple valve by the second evaporator and the 3rd evaporator, makes humid air First reach saturation temperature, then cool-down dehumidification, effect on moisture extraction are more preferable again.

3rd, the air after having dehumidified is heated by the first condenser, avoids the directly discharge of the heat in the first condenser from causing dirt Dye and waste.

4th, the rotating speed of frequency-changeable compressor in refrigerating plant is controlled using absolute moisture content, can be exported as needed different containing wet The air of amount, and the control to air humidity content is more accurate.

Brief description of the drawings

Fig. 1 is the system structure diagram of the utility model embodiment；

Fig. 2 is the structure diagram of dielectric barrier discharge in the utility model embodiment；

Fig. 3 is the structure diagram of the utility model embodiment middle section A；

Reference numeral：The first air hoses of 10-, the second air hoses of 11-, 20- strainers, 21- electrode plates, 22- ventholes, 23- anodes Binding post, 24- cathode terminals, 25- medium discharges room, the first plate electrodes of 26-, the second plate electrodes of 27-, 28- cone teeth, 29- insulating medium layers, 30- centrifugal blowers, 40- frequency-changeable compressors, 41- solenoid operated four-way valves, the first condensers of 42-, 43- throttling dresses Put, the first evaporators of 44-, the second condensers of 50-, the second evaporators of 51-, the 3rd evaporators of 52-, 60- water tanks, 70- gas-liquids point From device, 71- sewage draining exits, the interim air accumulators of 80-, 81- solenoid valves.

Embodiment

The embodiment of the utility model is described in detail below in conjunction with the accompanying drawings.

Embodiment

As shown in Figure 1, a kind of air pretreatment system, including the first air hose 10, the second air hose 11, filtration apparatus, centrifugation Wind turbine 30, refrigerating plant, dehydrating unit, water tank 60 and interim air accumulator 80；The refrigerating plant is included along refrigerant flowing side To frequency-changeable compressor 40, solenoid operated four-way valve 41, the first condenser 42,43 and first evaporator 44 of throttling arrangement set gradually, The dehydrating unit includes the second condenser 50, the second evaporator 51 and the 3rd evaporator 52, second condenser 50 and goes out Liquid mouth connects the inlet of the second evaporator 51 and the 3rd evaporator 52, second condenser 50 respectively after ratio triple valve Inlet connect the liquid outlet of the second evaporator 51 and the 3rd evaporator 52 respectively after triple valve；First evaporator 44 It is arranged on the second condenser 50 in water tank；The filtration apparatus, centrifugal blower 30, the second evaporator 51 and the 3rd evaporator 52 exist Entrance to the export direction of first air hose 10 is set gradually, the outlet connection gas-liquid separator 70 of first air hose 10, described The exhaust outlet of gas-liquid separator 70 connects the air inlet of the second air hose 11 and interim air accumulator 80 respectively after threeway, described interim The sewage draining exit of the exhaust outlet access gas-liquid separator 70 of air accumulator 80, the air inlet and exhaust outlet of the interim air accumulator 80 are all provided with There is solenoid valve 81；First condenser 42 is arranged in the second air hose 11.

Carried out in use, sucking by the entrance of humid air from the first air hose by centrifugal blower and passing through filtration apparatus Filter；Humid air carries out precooling by the second evaporator again, reduces the saturation temperature of warm air；Then cooled down by the 3rd evaporator To dew-point temperature, moisture condenses herein, and gas after cooling and the moisture condensed are separated by gas-liquid separator, after separation Gas it is most of heated by the second air hose after export dry air, fraction is stored after being compressed by interim air accumulator Come；When gas-liquid separator needs blowdown, by the sewage draining exit of the gas input gas-liquid separator in interim air accumulator, gases at high pressure Dirt in interim air accumulator and gas-liquid separator can be taken out of from the sewage draining exit of gas-liquid separator together.

In one of the embodiments, the filtration apparatus includes strainer 20 and dielectric barrier discharge；As shown in Fig. 2, The dielectric barrier discharge includes multiple electrode plates 21 radially set along the first air hose 10, is evenly distributed with the electrode plate 21 There are multiple ventholes 22, the electrode plate 21 is equipped with anode terminal 23 and cathode terminal 24, the anode terminal 23 External high pressure DC power supply is connected, the cathode terminal 24 is grounded.

Strainer may filter that the impurity in air, produce high density low temperature plasma by dielectric barrier discharge, these are high Can ion and gas molecule (such as N2, O2 and H2O), atom occur to produce after inelastic collision active particle (such as N2, O and OH etc.), these active particles are highly unstable, and active particle can aoxidize the volatile organic contaminant in air, make sky Gas is cleaner.

In another embodiment, as shown in figure 3, the electrode plate 21 is internally provided with medium discharge room 25, institute Give an account of and the first plate electrode 26 and the second plate electrode 27, first tablet are respectively equipped with two opposite walls of matter arc chamber 25 Multiple cone teeth 28 raised to the second plate electrode 27, first plate electrode 26, cone tooth 28, second are provided with electrode 26 Insulating medium layer 29, first tablet are all covered with 22 inner surface of venthole of 27 surface of plate electrode and electrode plate 21 Electrode 26 is electrically connected with anode terminal 23, and second plate electrode 27 is electrically connected with cathode terminal 24.

Tooth electrode is bored due to the radius of curvature very little at tip, very strong local electric field can be produced in local, is similar to Corona discharge, and the starting voltage of corona discharge is than relatively low.Due to boring the presence of toothing, make the firing potential of electrode plate It is low, it can produce plasma at lower voltages, under identical discharge voltage, more plasmas can be obtained.

In another embodiment, the exit of second air hose 11 is equipped with Temperature Humidity Sensor.

The real-time dry-bulb temperature of second wind tube outlet and practical wet-bulb temperature can be obtained by Temperature Humidity Sensor, pass through reality When dry-bulb temperature and practical wet-bulb temperature can calculate the absolute moisture content of air, pass through the absolute moisture content and default air The difference of absolute moisture content changes the working frequency of the frequency-changeable compressor in refrigerating plant, makes dry empty at the second wind tube outlet The water capacity of gas reaches requirement.

Embodiment described above only expresses specific embodiment of the present utility model, its description is more specific and detailed, But it should not be interpreted as limiting the scope of the present invention.It should be pointed out that for the common of this area For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to In the scope of protection of the utility model.

Claims

A kind of 1. air pretreatment system, it is characterised in that including the first air hose, the second air hose, filtration apparatus, centrifugal blower, Refrigerating plant, dehydrating unit, water tank and interim air accumulator；The refrigerating plant includes what is set gradually along refrigerant flow direction Frequency-changeable compressor, solenoid operated four-way valve, the first condenser, throttling arrangement and the first evaporator, it is cold that the dehydrating unit includes second Condenser, the second evaporator and the 3rd evaporator, the liquid outlet of second condenser connect second respectively after ratio triple valve The inlet of evaporator and the 3rd evaporator, the inlet of second condenser connect the second evaporator respectively after triple valve With the liquid outlet of the 3rd evaporator；First evaporator and the second condenser are arranged in water tank；The filtration apparatus, centrifugation wind Machine, the second evaporator and the 3rd evaporator are set gradually in entrance to the export direction of the first air hose, and first air hose goes out Mouthful connection gas-liquid separator, the exhaust outlet of the gas-liquid separator connect the second air hose and interim air accumulator respectively after threeway Air inlet, the sewage draining exit of the exhaust outlet access gas-liquid separator of the interim air accumulator, the air inlet of the interim air accumulator and Exhaust outlet is equipped with solenoid valve；First condenser is arranged in the second air hose.
2. air pretreatment system according to claim 1, it is characterised in that the filtration apparatus includes strainer and medium Barrier discharge device；The dielectric barrier discharge includes multiple electrode plates radially set along the first air hose, the electrode plate On be evenly equipped with multiple ventholes, the electrode plate is equipped with anode terminal and cathode terminal, the anode terminal connection External high pressure DC power supply, the cathode terminal ground connection.
3. air pretreatment system according to claim 2, it is characterised in that the electrode plate is internally provided with medium Arc chamber, is respectively equipped with the first plate electrode and the second plate electrode on two opposite walls of the medium discharge room, and described first Multiple cone teeth to the second plate electrode protrusion, first plate electrode, cone tooth, the second tablet electricity are provided with plate electrode Insulating medium layer, first plate electrode and anode terminal are all covered with the stomata inner surface of pole surface and electrode plate It is electrically connected, second plate electrode is electrically connected with cathode terminal.
4. air pretreatment system according to claim 1, it is characterised in that the exit of second air hose is equipped with temperature Humidity sensor.