CN110184170A - A kind of fermentation air pretreatment system using plate wing heat transfer technology - Google Patents

A kind of fermentation air pretreatment system using plate wing heat transfer technology Download PDF

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Publication number
CN110184170A
CN110184170A CN201910571378.XA CN201910571378A CN110184170A CN 110184170 A CN110184170 A CN 110184170A CN 201910571378 A CN201910571378 A CN 201910571378A CN 110184170 A CN110184170 A CN 110184170A
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plate
air
air heater
tube
tube box
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陆飞浩
岑文学
陆宁洲
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    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M41/00Means for regulation, monitoring, measurement or control, e.g. flow regulation
    • C12M41/12Means for regulation, monitoring, measurement or control, e.g. flow regulation of temperature
    • C12M41/18Heat exchange systems, e.g. heat jackets or outer envelopes
    • C12M41/20Heat exchange systems, e.g. heat jackets or outer envelopes the heat transfer medium being a gas

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  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

A kind of fermentation air pretreatment system using plate wing heat transfer technology, including horizontal aerial cooler, gas-liquid separator, air heater, plate wing heat-exchanging component is equipped in air heater, aerial cooler and gas-liquid separator combination settings are in horizontal type shell, high temperature air into system is divided into two tunnels, main line is connected with air heater, other pipeline is connected with the shell, it is connected on the right side of shell with air heater cold flow import, hot outlets on air heater are connected by return line with intake interface, independent plate wing heat passage and plate wing cold flow channel are equipped in air heater, controlled valve is equipped on main line, valve can be automatically adjusted by being equipped on other pipeline.Structure of the invention design is reasonable, energy-efficient, and air drag improves heat transfer coefficient down within 5kPa, and system is succinctly reliable, while reducing cost and operating cost, so that system outlet air quality is improved, promotes fermentation stability production.

Description

A kind of fermentation air pretreatment system using plate wing heat transfer technology
Technical field
The invention belongs to chemical production technical fields, are related to a kind of compressed air purification system more particularly to a kind of application The fermentation air pretreatment system of plate wing heat transfer technology, the filtrated air applied to aerobic fermentation pre-process.
Background technique
Aerobic fermentation refers to that fermentation process needs oxygen, for matrix assimilation, thalli growth and product catabolism. The source of oxygen is air, has to last for providing clean, the dry, air without miscellaneous bacteria in fermentation operation, this air also needs Certain pressure, to overcome equipment, the resistance of ducting to lose, in tank needed for the static pressure and technique of the generation of liquid submerged fermentation matrix Pressure.
Now, membrane technology is widely used to fermentation filtrated air processing, but it is dry, dry that film device, which requires inlet air, Net, it is therefore necessary to the processing of cooling de-watering wet down is carried out by preposition pretreatment system.Traditional preposition pretreatment system is usual It is, two-stage water removal cooling using recirculated water, chilled water two-stage, then steam-heated technique, equipment are the heat exchange of common shell and tube Device and cyclone separator.This traditional preposition pretreatment system has the disadvantage that: 1, complex process, drag losses are big;2, it sets Standby low efficiency, condensation water removal rate is low after cooling, and effect on moisture extraction is poor;3, since device efficiency is low, the temperature difference cooled and heated is all Very big, energy consumption is high.
Through looking into, the Chinese patent " air pretreatment system " of the existing patent No. 200910208228 solves resistance substantially Higher problem, but its air heat source uses circulating hot water, and the origin of heat of hot water is independent in system air cooler The heat exchange unit of setting.Hot water circuit operation needs separately to be arranged a set of support system, including hot water storage bucket, water pump and automatic control Device, auxiliary steam heating appliances and systems robot control system(RCS) etc., operating cost include that the water pump electricity charge, hot water flow through heat exchange equipment Descaling rinsing expense, automatic control maintenance cost etc..It can be seen that its system complex, reliability is not high enough, and operating cost is also higher.
In addition, the Chinese patent " fermentation air pretreatment system " of Patent No. 200920120153.4, heat source It is hot-air itself, heater is using traditional tube shell type structure, and system is succinct, high reliablity, fermenting and producing safety and stability.But The requirement of energy-saving and emission-reduction is increasing instantly, which also needs to improve, and especially drag losses must further decrease, and thus must It is thoroughly reformed in terms of flow process and device structure two.
Summary of the invention
Technical problem to be solved by the invention is to provide it is a kind of it is reasonable in design, resistance is lower, working service is more square Just the fermentation air pretreatment system using plate wing heat transfer technology.
The technical scheme of the invention to solve the technical problem is: a kind of fermentation using plate wing heat transfer technology is empty Gas pretreating system, it is characterised in that: including horizontal aerial cooler, gas-liquid separator, air heater and internal sky Air pipe, air heater is interior to be equipped with plate wing heat-exchanging component, and air heater is equipped with hot-fluid import and hot outlets, and air is cold But device and gas-liquid separator or so combination settings offer air inlet connecting on the left of the shell in a horizontal pressure shell body Mouthful, right side opening is equipped with outlet interface, and the high temperature air into system is divided into two tunnels, wherein the heat on main line and air heater It flows into mouth to be connected, other pipeline is connected with the intake interface on the left of shell, and the outlet interface on the right side of shell passes through flange and sky The cold flow import in the left side of hot-air heater is connected, and the hot outlets on air heater pass through on the left of return line and shell Intake interface is connected, and the right side opening of air heater is equipped with system gas outlet, and independent plate wing is equipped in air heater Heat passage and plate wing cold flow channel, main line enter high temperature air after air heater plate wing heat passage heat release from Hot outlets enter in aerial cooler through return line, through aerial cooler and gas-liquid separator treated clammy air from System gas outlet row of the cold flow import in the left side of air heater after plate wing cold flow channel for heat exchange on the right side of air heater Out, it is equipped with controlled valve on main line, adjustable valve is equipped on other pipeline.
As an improvement, the plate wing heat-exchanging component be successively be spaced continuously to be formed by stacking by several fin plates, plate, wherein Fin plate uses plain fin form, and is located at the orthogonal setting in direction of two pieces of adjacent fin plates of plate or more two sides, fin Plate upper and lower surface is the air duct of rectangular in cross-section wave, and the non-channel two sides of fin plate are blocked with strip of paper used for sealing, formed so adjacent , independent, mutually unmixed plate wing heat passage and plate wing cold flow channel.
Further, the hot-fluid import on the air heater and hot outlets are provided with the upper end of air heater respectively Right side of face and left side, plate wing heat passage are separated into hot-fluid import and hot-fluid corresponding to air heater by parting seal item Two of outlet, the bottom of two plate wing heat passages communicates, and the high temperature air entered from air heater hot-fluid import is through the One plate wing heat passage is upwardly into the second plate wing heat passage, then enters reflux from hot outlets downwards in bottom baffling Pipeline.
Further, the fin plate suppresses fin plate using the aluminium sheet of 0.2~0.3mm thickness, adopts between strip of paper used for sealing and plate It with being adhesively fixed or being fixed using rivet, is fixed between fin plate and plate using rivet, and successively rivets, is superimposed, fin Using being adhesively fixed between the non-channel in plate two sides and strip of paper used for sealing, the outside of plate wing heat-exchanging component is compressed with frame, and frame uses channel steel Add the form of screw rod.
It improving again, the aerial cooler is made of several groups along the heat exchange unit that shell length direction is vertically arranged, Every group of heat exchange unit includes the fin heat exchange pipe of tubular, and fin heat exchange pipe is vertically to the length direction setting of shell, fin heat exchange The upper and lower ends opening of pipe is equipped with upper tube box and lower tube box, and upper tube box and lower tube box stretch out outside shell respectively, can on upper tube box It is releasably covered with the upper cover plate being welded with into water adapter tube and water outlet pipe, the lower end of lower tube box, which is removably covered with, to be welded with The lower cover plate of blowdown connection.
Further, the upper tube box be by be welded on fin heat exchange pipe rectangular tube, rectangle tube sheet, rectangular flange and Tube side demarcation plate composition, rectangle tube sheet are weldingly fixed in rectangular tube, and the plane length and width size of rectangle tube sheet is both less than cylinder Diameter, thickness between 12~20mm, cooling water from the water inlet of upper cover plate adapter tube enter upper tube box, inside heat exchanger tube, down tube Case, again upwards through inside heat exchanger tube, upper tube box, finally drawn from water outlet pipe, housing bottom offers cooling for heat exchange unit First leakage fluid dram of the condensate liquid discharge generated afterwards.
Further, the lower tube box and upper tube box are symmetrical arranged, and the structure and upper tube box of lower tube box are essentially identical, different Place is one piece fewer than the tube side demarcation plate of upper tube box of the tube side demarcation plate of lower tube box, and tube side demarcation plate is set according to number of tube passes It is fixed, if number of tube passes is 2, without demarcation plate in lower tube box.
Further, the upper cover plate and lower cover plate are symmetrically arranged rectangle cover board, upper cover plate and lower cover plate sealing cover It is located at the top and bottom of upper tube box and lower tube box, upper cover plate and lower cover plate and passes through the rectangle on bolt and upper tube box and lower tube box The detachably connected fixation of flange.
Further, the right side for being located at aerial cooler in shell is arranged in the gas-liquid separator, and gas-liquid separator includes Multiple separative unit pipes, separative unit pipe are evenly arranged on the circular section that air flows through along the length direction level of shell, shell bottom Portion is equipped with the second leakage fluid dram of the drop discharge generated after cohesion, centrifugal sedimentation for humid air.
Finally, the separative unit pipe includes water conservancy diversion and constant-current stabilizer, the end of separative unit pipe be equipped with outlet interface and Finally shell is discharged from the second leakage fluid dram in drain interface, the drop of drain interface discharge, and the saturated moist air of exhaust outlet discharge is most It is discharged eventually from outlet interface.
Compared with the prior art, the advantages of the present invention are as follows: the wing heat exchanger assembly in air heater passes through bonding, riveting The mode of nail is assembled, so that easy to assembly, sound construction, while reducing thermal contact resistance;Fin plate is using 0.2~0.3mm thickness Aluminium sheet suppresses fin plate, and the metallic walls thermal resistance of fin plate is minimum, and cold and hot circulation road is adjacent and does not mix mutually, plate-fin heat exchanger structure Compact, specific surface area (heat exchange area of unit volume) is up to 1000~2500m2/m3, heat transfer coefficient is high, air drag pole It is small;Aerial cooler is combined with gas-liquid separator in a shell, front and back arrangement, can be reduced manufacturing cost, be reduced air resistance Power;Rectangular pipe box structure is devised on aerial cooler, and dismountable upper and lower cover plates is set, convenient for cleaning, maintenance.The present invention It is reasonable in design, more energy-efficient, compare conventional air pretreatment system, this system air drag down within 5kPa, And heat transfer coefficient is higher;Heater, separator Maintenance free, system maintenance expense are extremely low;System process is succinct, reliability Good, drag losses are extremely low, and outlet air quality is stablized, and can promote fermentation safety in production, promote energy-saving and emission-reduction work.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of fermentation air pretreatment system provided by the invention;
Fig. 2 is cross-sectional view of the aerial cooler in Fig. 1 along line A-A;
Fig. 3 is cross-sectional view of the input end along line B-B of gas-liquid separator in Fig. 1;
Fig. 4 is the longitudinal sectional view of Fig. 1 air heater;
Fig. 5 is that fin plate, plate, the strip of paper used for sealing in plate-fin heat exchanger component divide column combination diagram;
Fig. 6 is fin plate and plate, strip of paper used for sealing riveting schematic diagram;
Fig. 7 is plate-fin heat exchanger component external block schematic illustration;
Fig. 8 is the side view of Fig. 7.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
As shown in Fig. 1~8, a kind of fermentation air pretreatment system (or device) using plate wing heat transfer technology, including Aerial cooler 2, gas-liquid separator 3, the air heater 1 set gradually from left to right, wherein air heater 1, air are cold But device 2, gas-liquid separator 3 are horizontal type structure, and the upper surface left and right side of air heater 1 offers hot outlets respectively 1b and hot-fluid import 1a, air heater 1 is interior to be equipped with plate wing heat-exchanging component, and aerial cooler 2 and gas-liquid separator 3 or so combine It is arranged in a horizontal vessel shell 40, the left side of the shell 40 offers intake interface 401, and right side opening is equipped with outlet Interface 402, the high temperature air entered from system entry 100 are divided into two tunnels, wherein the hot-fluid on main line 10 and air heater 1 Import 1a is connected, and other pipeline 20 is connected with the intake interface 401 in 40 left side of shell, the outlet interface 402 on 40 right side of shell It is connected by flange 5 with the cold flow import 1c in the left side of air heater 1, the hot outlets 1b on air heater 1 passes through Return line 30 is connected with the intake interface 401 in 40 left side of shell, and the right side opening of air heater 1 is equipped with system gas outlet 1d is equipped with plate wing heat passage and plate wing cold flow channel 110 in air heater 1, the high temperature air warp that main line 10 enters Enter in aerial cooler 2 after crossing 1 plate wing heat passage heat release of air heater from hot outlets 1b through return line 30, through sky The cold flow import 1c in Gas Cooler 2 and gas-liquid separator 3 treated clammy air from the left side of air heater 1 is cold through plate wing Circulation road 110 is discharged after exchanging heat from the system gas outlet 1d on 1 right side of air heater.
The 1 inner panel wing heat-exchanging component of air heater of the present embodiment is by several fin plates 11, the plate 12 successively company of interval Continuous to be formed by stacking, wherein fin plate 11 uses plain fin form, and fin plate 11 suppresses wing using the aluminium sheet of 0.2~0.3mm thickness Sheet compares conventionally employed 1mm thickness stainless steel heat exchange tube, and the metallic walls thermal resistance of fin plate 11 is only the 2% of the latter, due to air Cold and hot fluid is all homologous compressed air in heater 1, therefore plate wing heat-exchanging component pressure difference is minimum, usually only several hundred Paasches Card, can be designed by normal pressure, since fluid pressure difference is minimum, can guarantee that cold fluid and hot fluid does not leak crossfire after compressing between plate, System outlet air quality is not influenced;11 upper and lower surface of fin plate is the air duct of rectangular in cross-section wave, the manufacture of this structure It is simple mature, it is suitble to the heat exchange of gas gas lower resistance;Cold and hot fluid is adjacent, mutual unmixed autonomous channel in order to be formed, and is located at flat The orthogonal setting in direction of two pieces of adjacent fin plates 11 of about 12 two sides of plate, non-channel two sides 13 envelope of strip of paper used for sealing of fin plate 11 It is stifled, adjacent, independent, mutual unmixed plate wing heat passage and plate wing cold flow channel 110 are formed in this way;Wherein plate wing hot-fluid Channel is separated into two, two of the hot-fluid import 1a and hot outlets 1b corresponding to air heater 1 by parting seal item The bottom of plate wing heat passage communicates, and the high temperature air entered from 1 hot-fluid import 1a of air heater is through the first plate wing type of thermal communication Road is upwardly into the second plate wing heat passage, then enters return line 30 from hot outlets 1b downwards in bottom baffling;This Cold flow air horizontal direction in template wing cold flow channel 110, single process;Hot-fluid air vertical direction in plate wing heat passage, It gets on, get off, double-flow, in device bottom baffling;When assembly, is used between strip of paper used for sealing 13 and plate 12 and be adhesively fixed or use Rivet 15 is fixed, is fixed between fin plate 11 and plate 12 using rivet, and successively rivets, is superimposed, and 11 two sides of fin plate are non-through Using being adhesively fixed between road and strip of paper used for sealing 13, this assembly method is lower compared to traditional welding manner cost, processes also more It is convenient;The outside of plate wing heat-exchanging component is compressed with frame 14, and frame 14 adds the form of screw rod using channel steel, to guarantee between plate It is tightly compacted, the nut on screw rod is screwed, is exactly fin plate 11, the application compression prestressing force of plate 23 of heat exchanging component, to subtract Both small heat transfer contact thermal resistance.
The aerial cooler 2 of the present embodiment is made of three groups of heat exchange units 20, length of the heat exchange unit 20 along shell 40 Direction arrangement, every group of heat exchange unit 20 include fin heat exchange pipe 21, upper tube box 22 and the lower tube box 23 of tubular, fin heat exchange pipe 21 It is vertically to the length direction setting of shell 40, upper tube box 22 and lower tube box 23 symmetrically cover the upper and lower ends for being located at fin heat exchange pipe 21 Opening, upper tube box 22 and lower tube box 23 stretch out outside shell 40 respectively, are removably covered with and are welded with into water on upper tube box 22 Adapter tube 241 and the upper cover plate of water outlet pipe 242 24, the lower end of lower tube box 23, which is removably covered with, is welded with blowdown connection 251 Lower cover plate 25;Upper tube box 22 is rectangular tube 222, the rectangle tube sheet 221, rectangular flange by being welded on fin heat exchange pipe 21 223 and tube side demarcation plate 224 form, rectangle tube sheet 221 is weldingly fixed in rectangular tube 222, the plane of rectangle tube sheet 221 Length and width size is both less than 21 diameter of fin heat exchange pipe, and thickness is between 12~20mm, the structure and upper tube box 22 of lower tube box 23 It is essentially identical, the difference is that 224 few one pieces of tube side demarcation plate of the tube side demarcation plate 224 of lower tube box 23 than upper tube box 22, Tube side demarcation plate 224 is set according to number of tube passes, if number of tube passes is 2, without tube side demarcation plate 224 in lower tube box 23, on Cover board 24 and lower cover plate 25 are symmetrically arranged rectangle cover board, and upper cover plate 24 and 25 sealing cover of lower cover plate are located at upper tube box 22 under The top and bottom of bobbin carriage 23, upper cover plate 24 and lower cover plate 25 pass through the rectangular flange on bolt and upper tube box 22 and lower tube box 23 223 detachably connected fixations, hinged bolt when needing open upper cover plate 24 or lower cover plate 25, to bobbin carriage inside and heat exchange It is cleaned inside pipe, as long as heat exchange unit 20 is provided with two groups or more, so that it may which realization is cleaned one by one, does not influence shell side air Normal circulation;Cooling water from the water inlet adapter tube 241 of upper cover plate 24 enter upper tube box 22, inside fin heat exchange pipe 21, lower tube box 23, Again upwards through inside fin heat exchange pipe 21, upper tube box 22, finally from water outlet pipe 242 draw;Every group of heat exchange unit 20 can become deformed Same or different cooling waters, the on-off of every group of 20 cooling water of heat exchange unit can operate respectively, it can lower in cooling load Winter-spring season dismantled cleaning one by one to bobbin carriage in the case where shell side air circulation.This non-stop-machine on-line cleaning, Reduce production run cost;The air entered from the air intlet 1a of air heater 1 is through evaporator section 12, air bypass passage Enter the cooling of aerial cooler 2 from first interface 1b after 14, wherein water vapour is cooled, condenses, and the condensed water of precipitation condenses upon 21 surface of fin heat exchange pipe is accumulated in bottom by gravity flow down, and shell 40, quilt is discharged by the first leakage fluid dram 26 The minor diameter liquid mist drop of air-flow entrainment enters subsequent gas-liquid separator 3.
The right side for being located at aerial cooler 2 in shell 40 is arranged in gas-liquid separator 3, and gas-liquid separator 3 is public using patent The equipment of the number of opening 201811387224, gas-liquid separator 3 include multiple separative unit pipes 31, and separative unit pipe 31 is along shell 40 Length direction level be evenly arranged on the circular section that air flows through, since aerial cooler 2 is combined with gas-liquid separator 3 same In shell 40, air circulation cross-section is not mutated, and needs not move through rectification, and humid air evenly distributes flow naturally and enters each point From unit pipes 31;Separative unit pipe 31 includes water conservancy diversion and constant-current stabilizer 311, and the end of separative unit pipe is equipped with 312 He of exhaust outlet Drain interface 313,40 bottom rear of shell are equipped with the second row of the drop discharge generated after cohesion, centrifugal sedimentation for humid air Liquid mouth 32, humid air enters inside, and since water conservancy diversion generates rotation, wherein drop is agglomerated by multiple impact, and centrifugal sedimentation exists 31 tube wall of separative unit pipe is discharged from end leakage fluid dram 313, collects in bottom later, and shell finally is discharged from the second leakage fluid dram 32 Body 40, the saturated moist air for eliminating moisture content are discharged from exhaust outlet 312, are finally discharged from outlet interface 402, and outlet interface 402 is logical Flange 5 is crossed to be connected with the cold flow import 1c of air heater 1.
The Combination Design of aerial cooler 2 and gas-liquid separator 3, has saved resistance and cost.And aerial cooler 2 Opening design had both met technique requirement easy to clean, also complied with the design requirement in terms of pressure vessel intensity, its maximum limit The integrality for remaining to degree circular cylindrical shell, can be verified by the analytical calculation of finite element.
Humid air enters plate wing cold flow channel 110 from the cold flow import 1c of air heater 1, and straight line passes through, with adjacent panels Heat exchange occurs for the hot-air in wing heat passage, and air is heated, and reduces relative humidity, is finally discharged from system outlet 1d. As shown in figure 4, on circular section, plate wing component periphery (in figure hatched area 1., 2., 3.) has sealing plate closure, cold wet Atmosphere draught-free.
In addition, being equipped with controlled valve 101 on main line 10, self-adjustable valve 201 is equipped on other pipeline 20, It can be according to the demand for heat of 1 cold flow air of air heater, by adjusting the aperture of valve 201 on other pipeline 20, to realize master Pipeline 10, the air mass flow distribution of other pipeline 20 and resistance balance.
The plate wing heat-exchanging component category compact structure of the present embodiment, specific surface area (heat exchange area of unit volume) are reachable 1000~2500m2/m3, same heat exchange area, diameter of the housing is the smallest, in addition, the cost of the present embodiment is lower than similar The manufacturing cost of system, system air resistance are can be controlled in 5kPa or less.
It may be said that this system is multi-party using processing performance, technical indicator performance, equipment safety performance and lower cost Face has reached more satisfactory combination.

Claims (10)

1. a kind of fermentation air pretreatment system using plate wing heat transfer technology, it is characterised in that: cooling including horizontal air Device, gas-liquid separator, air heater and inner air pipeline, air heater is interior to be equipped with plate wing heat-exchanging component, and air adds Hot device is equipped with hot-fluid import and hot outlets, and aerial cooler and gas-liquid separator or so combination settings are in a horizontal pressure In container casing, intake interface is offered on the left of the shell, right side opening is equipped with outlet interface, into the high temperature air point of system For two tunnels, wherein main line is connected with the hot-fluid import on air heater, other pipeline and the intake interface phase on the left of shell It connects, the outlet interface on the right side of shell is connected by flange with the cold flow import in the left side of air heater, air heater On hot outlets be connected by return line with the intake interface on the left of shell, the right side opening of air heater is equipped with system Gas outlet is equipped with independent plate wing heat passage and plate wing cold flow channel in air heater, and the high temperature that main line enters is empty Gas enters in aerial cooler after air heater plate wing heat passage heat release from hot outlets through return line, through air Cooler and gas-liquid separator treated clammy air are from the cold flow import in the left side of air heater through plate wing cold flow channel System gas outlet discharge after heat exchange on the right side of air heater, controlled valve is equipped on main line, is equipped on other pipeline Adjustable valve.
2. fermentation air pretreatment system according to claim 1, it is characterised in that: if the plate wing heat-exchanging component be by Dry fin plate, plate are successively spaced and are continuously formed by stacking, and wherein fin plate uses plain fin form, and is located at plate or more two The orthogonal setting in direction of two pieces of adjacent fin plates of side, fin plate upper and lower surface are the air duct of rectangular in cross-section wave, fin The non-channel two sides of plate are blocked with strip of paper used for sealing, form adjacent, independent, mutual unmixed plate wing heat passage in this way and plate wing is cold Circulation road.
3. fermentation air pretreatment system according to claim 2, it is characterised in that: the hot-fluid on the air heater Import and hot outlets are provided with the upper surface right side and left side of air heater respectively, and plate wing heat passage passes through parting seal Item is separated into hot-fluid import and two of hot outlets corresponding to air heater, the bottom phase of two plate wing heat passages Logical, the high temperature air entered from air heater hot-fluid import is through the first plate wing heat passage, downwards in bottom baffling, Xiang Shangjin Enter the second plate wing heat passage, then enters return line from hot outlets.
4. fermentation air pretreatment system according to claim 3, it is characterised in that: the fin plate using 0.2~ The aluminium sheet of 0.3mm thickness suppresses fin plate, using being adhesively fixed or fixed using rivet between strip of paper used for sealing and plate, fin plate and flat It is fixed between plate using rivet, and successively rivets, is superimposed, used and be adhesively fixed between the non-channel in fin plate two sides and strip of paper used for sealing, plate The outside of wing heat-exchanging component is compressed with frame, and frame adds the form of screw rod using channel steel.
5. fermentation air pretreatment system according to claim 1, it is characterised in that: the aerial cooler is by several The heat exchange unit composition that group is vertically arranged along shell length direction, every group of heat exchange unit includes the fin heat exchange pipe of tubular, fin Heat exchanger tube is vertically to the length direction setting of shell, and the upper and lower ends opening of fin heat exchange pipe is equipped with upper tube box and lower tube box, Upper tube box and lower tube box stretch out outside shell respectively, are removably covered with and are welded with into water adapter tube and water outlet pipe on upper tube box Upper cover plate, the lower end of lower tube box are removably covered with the lower cover plate for being welded with blowdown connection.
6. fermentation air pretreatment system according to claim 5, it is characterised in that: the upper tube box is by being welded on wing Rectangular tube, rectangle tube sheet, rectangular flange and tube side demarcation plate composition, rectangle tube sheet on piece heat exchanger tube are weldingly fixed on rectangle In adapter tube, the plane length and width size of rectangle tube sheet is both less than barrel diameter, and thickness is between 12~20mm, and cooling water is from upper The water inlet adapter tube of cover board enter upper tube box, inside heat exchanger tube, lower tube box, again upwards through inside heat exchanger tube, upper tube box, finally from going out Water adapter tube is drawn, and housing bottom offers the first leakage fluid dram of the condensate liquid discharge generated after cooling for heat exchange unit.
7. fermentation air pretreatment system according to claim 6, it is characterised in that: the lower tube box and upper tube box are symmetrical Setting, the structure and upper tube box of lower tube box are essentially identical, the difference is that pipe of the tube side demarcation plate of lower tube box than upper tube box Journey demarcation plate is one piece few, and tube side demarcation plate is set according to number of tube passes, if number of tube passes is 2, without demarcation plate in lower tube box.
8. fermentation air pretreatment system according to claim 7, it is characterised in that: the upper cover plate and lower cover plate are pair Claim the rectangle cover board of setting, upper cover plate and lower cover plate sealing cover are located at the top and bottom of upper tube box and lower tube box, upper cover plate and Lower cover plate passes through the detachably connected fixation of rectangular flange on bolt and upper tube box and lower tube box.
9. according to claim 1 to fermentation air pretreatment system described in 8 any claims, it is characterised in that: the gas The right side for being located at aerial cooler in shell is arranged in liquid/gas separator, and gas-liquid separator includes multiple separative unit pipes, and separation is single First pipe is evenly arranged on the circular section that air flows through along the length direction level of shell, housing bottom be equipped with for humid air through cohesion, Second leakage fluid dram of the drop discharge generated after centrifugal sedimentation.
10. fermentation air pretreatment system according to claim 9, it is characterised in that: the separative unit pipe, which includes, leads Stream and constant-current stabilizer, the end of separative unit pipe are equipped with outlet interface and drain interface, the drop of drain interface discharge finally from Shell is discharged in second leakage fluid dram, and the saturated moist air of exhaust outlet discharge is finally discharged from outlet interface.
CN201910571378.XA 2019-06-28 2019-06-28 A kind of fermentation air pretreatment system using plate wing heat transfer technology Pending CN110184170A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113587701A (en) * 2021-07-16 2021-11-02 北京科荣达航空科技股份有限公司 Heat exchanger with ozone conversion and high-temperature precooling functions

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