CN109028881A - A kind of dryer and its Differential pressure control method - Google Patents

A kind of dryer and its Differential pressure control method Download PDF

Info

Publication number
CN109028881A
CN109028881A CN201810820455.6A CN201810820455A CN109028881A CN 109028881 A CN109028881 A CN 109028881A CN 201810820455 A CN201810820455 A CN 201810820455A CN 109028881 A CN109028881 A CN 109028881A
Authority
CN
China
Prior art keywords
preheating
cooling
air
dryer
section
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810820455.6A
Other languages
Chinese (zh)
Inventor
熊森冰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Truking Technology Ltd
Original Assignee
Truking Technology Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Truking Technology Ltd filed Critical Truking Technology Ltd
Priority to CN201810820455.6A priority Critical patent/CN109028881A/en
Publication of CN109028881A publication Critical patent/CN109028881A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
    • F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
    • F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements for supplying or controlling air or other gases for drying solid materials or objects
    • F26B21/30—Controlling, e.g. regulating, parameters of gas supply
    • F26B21/37—Velocity of flow; Quantity of flow
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

本发明公开了一种烘干机及其压差控制方法，烘干机包括依次设置的预热段箱体、高温段箱体和冷却段箱体，预热段箱体、高温段箱体和冷却段箱体内依次设有预热层流风机、高温层流风机和冷却层流风机，烘干机还包括预热排风管、冷却排风管、总排风管和总排风机，预热排风管、冷却排风管的第一端分别与预热段箱体和冷却段箱体连通，预热排风管、冷却排风管的第二端均与总排风管连通，预热排风管、冷却排风管上分别设有第一风量控制阀、第二风量控制阀，总排风机装设在总排风管上，便于调节压差、运行稳定、能耗低。本发明烘干机压差控制方法稳定可靠、准确有效。

The invention discloses a dryer and a pressure difference control method thereof. The dryer includes a preheating section box, a high temperature section box and a cooling section box arranged in sequence, the preheating section box, the high temperature section box and the The cooling section is equipped with a preheating laminar flow fan, a high temperature laminar flow fan and a cooling laminar flow fan in turn. The dryer also includes a preheating exhaust duct, a cooling exhaust duct, a main exhaust duct and a main exhaust fan. The first ends of the exhaust pipe and the cooling exhaust pipe are connected with the preheating section box and the cooling section box respectively, and the second ends of the preheating exhaust pipe and the cooling exhaust pipe are connected with the main exhaust pipe. The first air volume control valve and the second air volume control valve are respectively installed on the exhaust pipe and the cooling exhaust pipe. The main exhaust fan is installed on the main exhaust pipe, which is convenient for adjusting the pressure difference, stable operation and low energy consumption. The pressure difference control method of the drying machine of the present invention is stable, reliable, accurate and effective.

Description

A kind of dryer and its Differential pressure control method
The present invention relates to food, pharmaceutical production field more particularly to a kind of dryer and its Differential pressure control methods.
Background technique
Three preheating section, high temperature section and cooling section functional sections are disposed with inside tunnel sterilizing dryer, in order to true Protecting tunnel sterilizing and drying machine three, functional section can Each performs its own functions, and certain pressure difference, ordinary circumstance are maintained between usually needing each section Down it is 1-2pa, in the prior art, passes through after the slag hull assembly of preheating section air draft and the shared drying motor spindle of cooling section air draft The discharge of one exhaust blower, due to being not provided with control component in the exhaust blower front end, if imbalance of pressure will will appear it is as follows Situation: when preheating section pressure is lower than high temperature section 1-2pa, the hot wind of high temperature section is circulated into preheating section, leads to preheating section temperature liter Height, may will affect performance and the service life of preheating section high efficiency particulate air filter, the pressure reduction after hot wind of high temperature section flow to preheating section, The gas of cooling section flows into high temperature section, to influence the sterilizing of high temperature section and remove thermic effect；, whereas if the pressure of preheating section Higher than high temperature section, the air of preheating section can flow into high temperature section, cool down pressure increase in high temperature section so as to cause hot-air inflow Section, influences the cooling effect of cooling section；In the prior art, the working frequency of exhaust blower be definite value, i.e., with air draft when maximum value For normally opened air quantity, biggish energy consumption is resulted in, in addition, when adjusting the exhaust blower exhaust air rate of cooling section, preheating section and cooling The pressure of section can be raised simultaneously and be reduced, and exhaust blower is located at cooling section bottom, and exhaust blower air inlet is apart from preheating section air draft Mouth, the length of cooling section exhaust outlet are different, therefore are difficult to that accurately the pressure difference of three functional sections is adjusted.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, provide a kind of convenient for adjusting pressure difference, operation Stablize, the dryer that low energy consumption and reliable and stable, accurately and effectively dryer Differential pressure control method.
In order to solve the above technical problems, the invention adopts the following technical scheme:
A kind of dryer, including the preheating section cabinet, high temperature section cabinet and cooling section cabinet set gradually, the preheating section case Preliminary heating zone flow fan, heat zone flow fan and cooling layer flow fan, institute are successively arranged in body, high temperature section cabinet and cooling section cabinet Stating dryer further includes preheating air-exhausting duct, cooling, air discharging pipe, total air-exhausting duct and total exhaust blower, the preheating air-exhausting duct, cooling row The first end of air hose is connected to the preheating section cabinet and cooling section cabinet respectively, the preheating air-exhausting duct, cooling, air discharging pipe Second end is connected to total air-exhausting duct, be respectively equipped on the preheating air-exhausting duct, cooling, air discharging pipe the first volume control damper, Second volume control damper, total exhaust blower are installed on total air-exhausting duct.
As a further improvement of the above technical scheme:
High temperature air-exhausting duct is communicated on the high temperature section cabinet, the high temperature air-exhausting duct is equipped with dehumidifier exhaust blower.
It is respectively equipped between room where the preheating section cabinet, high temperature section cabinet and cooling section cabinet and drying body chassis First differential pressure pickup, the second differential pressure pickup and third differential pressure pickup.
It is efficient that the preheating section cabinet is additionally provided with preheating air inlet, preheating low efficient filter component, pre- air bells cap and preheating Filter, the preliminary heating zone flow fan by the preheated low efficient filter component of air that preheating air inlet enters for that will be entered The pre- air bells cap simultaneously blows to the preheating high efficiency particulate air filter, and the preheating high efficiency particulate air filter is located at the transmission net of the dryer The top of band, the first end of the preheating air-exhausting duct and the connectivity part of the preheating section cabinet are located at the transmission net of the dryer The lower section of band.
The high temperature section cabinet is additionally provided with wind-supplying mouth, heating holder assembly, bringing-up section fan housing component, return air frame and hi-temp hi-effective Filter, the heat zone flow fan are used to inhale the benefit wind of wind-supplying mouth and the heated holder assembly of the intracorporal circulated air of high temperature section case Enter bringing-up section fan housing component and blow to hi-temp hi-effective filter, and enters next work cycle, the high temperature by return air frame High efficiency particulate air filter is located at the top of the foraminous conveyer of the dryer, the connection of the high temperature air-exhausting duct and the high temperature section cabinet Place is located at the lower section of the foraminous conveyer of the dryer.
The cooling section cabinet is additionally provided with cooling air inlet, cooling section low efficient filter, cooling section fan housing component and cooling Section high efficiency particulate air filter, the cooling layer flow fan is for will be through cold air that cooling air inlet enters through cooling section low efficient filter Cooling section high efficiency particulate air filter is blowed to through cooling section fan housing component, the cooling section high efficiency particulate air filter is located at the conveying of the dryer The connectivity part of the top of mesh belt, the first end of the cooling, air discharging pipe and the cooling section cabinet is located at the conveying of the dryer The lower section of mesh belt.
A kind of dryer Differential pressure control method, comprising the following steps:
S1, the working frequency of total exhaust blower and dehumidifier exhaust blower is adjusted to setting value respectively, by room where drying body chassis and The operating pressure of downstream bottling department is adjusted to setting value during normal production；
S2, the working frequency of preliminary heating zone flow fan, heat zone flow fan and cooling layer flow fan is adjusted until preheating section cabinet, height Pressure difference where temperature section cabinet and cooling section cabinet and drying body chassis between room is all satisfied setting range value；
S3, it keeps the working frequency of preliminary heating zone flow fan, heat zone flow fan and cooling layer flow fan constant, adjusts the first air quantity The working frequency of control valve, the aperture of the second volume control damper and dehumidifier exhaust blower make preheating section cabinet, high temperature section cabinet and The intracorporal pressure difference of cooling section case keeps setting range value, and the exhaust air rate of total exhaust blower is made to be equal to the first volume control damper and second The sum of exhaust air rate of volume control damper.
As a further improvement of the above technical scheme:
In the step S1, the pressure difference detected according to the first differential pressure pickup adjusts the working frequency of preliminary heating zone flow fan, The pressure 2-10pa in room where making the intracorporal pressure of preheating section case be higher than drying body chassis, is detected according to the second differential pressure pickup Pressure difference, adjust heat zone flow fan working frequency, make the intracorporal pressure of high temperature section case be higher than drying body chassis where room Between pressure 3-12pa, according to third differential pressure pickup detect pressure difference, adjust cooling layer flow fan working frequency, make cold But the pressure 2-10pa in room where the intracorporal pressure of section case is higher than drying body chassis.
In the step S3, when the pressure in room changes where drying body chassis, the first Boiler pressure control is adjusted The aperture of valve and the working frequency of dehumidifier exhaust blower keep the aperture of the second volume control damper constant；When the pressure of bottling department is sent out When changing, the aperture of the second volume control damper is adjusted, keeps the aperture of the first volume control damper and the work of dehumidifier exhaust blower Frequency is constant.
In the step S1, the setting value of total exhaust blower and dehumidifier exhaust blower working frequency is respectively that it works normally model The median enclosed.
Compared with the prior art, the advantages of the present invention are as follows:
(1) dryer of the invention, when normal work, when preheating section cabinet, high temperature section cabinet and the intracorporal pressure of cooling section case Value is adjusted to after meeting job requirement, and the working frequency of preliminary heating zone flow fan, heat zone flow fan and cooling layer flow fan is kept It is constant, the preheating air-exhausting duct communicated with preheating section cabinet is set, and the cooling, air discharging pipe communicated with cooling section cabinet preheats air-exhausting duct It is communicated simultaneously with total air-exhausting duct with cooling, air discharging pipe, total exhaust blower is set on total air-exhausting duct from preheating section cabinet and cooling section cabinet Interior air draft is to adjust the pressure of preheating section cabinet and cooling section cabinet, without the slag hull assembly by drying motor spindle The air draft out of preheating section cabinet and cooling section cabinet efficiently avoids Air Leakage caused by common exhaust pipe to room pressure It has an impact, while also avoiding the broken bottle in slag hull assembly as distinguished and admirable be discharged to by exhaust duct outdoor pollutes ring Border, and preheating section cabinet and cooling can be adjusted separately by the aperture of the first volume control damper of control, the second volume control damper The section intracorporal specific exhaust air rate of case, that is, realize and adjust separately preheating section cabinet and the intracorporal operating pressure of cooling section case is kept The purpose of reasonable pressure between preheating section cabinet, cooling section cabinet and room where drying body chassis, easy to adjust, operation can It leans on, in adjustment process, total exhaust air rate that total exhaust blower is arranged is equal to the row of the first volume control damper and the second volume control damper The sum of air quantity avoids unnecessary energy loss without remaining higher exhaust air rate.
(2) dryer Differential pressure control method of the invention, firstly, by the working frequency of total exhaust blower and dehumidifier exhaust blower point It is not adjusted to setting value, the operating pressure in room where drying body chassis and downstream bottling department is adjusted to setting during normal production Value adjusts the working frequency of preliminary heating zone flow fan, heat zone flow fan and cooling layer flow fan until preheating section cabinet, high temperature section Pressure difference where cabinet and cooling section cabinet and drying body chassis between room is all satisfied setting range value；Then, preheating is kept The working frequency of laminar flow blower, heat zone flow fan and cooling layer flow fan is constant, adjusts the first volume control damper, the second air quantity The aperture of control valve and the working frequency of dehumidifier exhaust blower make preheating section cabinet, high temperature section cabinet and the intracorporal pressure of cooling section case Difference keeps setting range value, total exhaust blower air draft from preheating section cabinet and cooling section cabinet simultaneously, by adjusting the first air quantity Control valve, the second volume control damper aperture adjust the exhaust air rate of preheating section cabinet, cooling section cabinet respectively, and by adjusting pumping The working frequency of wet exhaust blower adjusts the exhaust air rate of high temperature section cabinet dehumidifier air draft, can make preheating section cabinet, high temperature section cabinet It is maintained at setting range value with the intracorporal pressure difference of cooling section case, the pressure adjustment of three sections of cabinets is relatively independent, it will not interfere with each other, Therefore, adjustment can be quickly completed, it is easy to adjust, simple and accurate and reliable, in adjustment process, make the exhaust air rate etc. of total exhaust blower In the sum of the first volume control damper and the exhaust air rate of the second volume control damper, adjust immediately, it is higher without remaining Exhaust air rate avoids unnecessary energy loss.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of dryer of the present invention.
Fig. 2 is the cross-sectional view of dryer preheating section and cooling section of the present invention.
Fig. 3 is the cross-sectional view of dryer high temperature section of the present invention.
Fig. 4 is the schematic diagram of dryer pressure difference control system of the present invention.
Each label indicates in figure:
1, preheating section cabinet；101, preliminary heating zone flow fan；102, low efficient filter component is preheated；103, pre- air bells cap；104, pre- Hot high efficiency particulate air filter；2, high temperature section cabinet；201, heat zone flow fan；202, wind-supplying mouth；203, holder assembly is heated；204, it heats Section fan housing component；205, return air frame；206, hi-temp hi-effective filter；3, cooling section cabinet；301, cooling layer flow fan；302, cold But air inlet；303, cooling section low efficient filter；304, cooling section fan housing component；305, cooling section high efficiency particulate air filter；4, it preheats Air-exhausting duct；5, cooling, air discharging pipe；6, total air-exhausting duct；7, total exhaust blower；8, the first volume control damper；9, the second volume control damper； 10, high temperature air-exhausting duct；11, dehumidifier exhaust blower；12, the first differential pressure pickup；13, the second differential pressure pickup；14, third pressure difference passes Sensor；15, foraminous conveyer；16, master controller.
Specific embodiment
The present invention is described in further details below with reference to Figure of description and specific embodiment.
Fig. 1 to Fig. 4 has gone out a kind of embodiment of dryer of the present invention, the dryer of the present embodiment, including what is set gradually Preheating section cabinet 1, high temperature section cabinet 2 and cooling section cabinet 3, in preheating section cabinet 1, high temperature section cabinet 2 and cooling section cabinet 3 according to Secondary to be equipped with preliminary heating zone flow fan 101, heat zone flow fan 201 and cooling layer flow fan 301, dryer further includes preheating air-exhausting duct 4, cooling, air discharging pipe 5, total air-exhausting duct 6 and total exhaust blower 7, preheating air-exhausting duct 4, cooling, air discharging pipe 5 first end respectively with preheating Section cabinet 1 be connected to cooling section cabinet 3, preheat air-exhausting duct 4, cooling, air discharging pipe 5 second end be connected to total air-exhausting duct 6, in advance The first volume control damper 8, the second volume control damper 9 are respectively equipped on hot air-exhausting duct 4, cooling, air discharging pipe 5, total exhaust blower 7 is installed On total air-exhausting duct 6, when normal work, when the pressure value adjustment in preheating section cabinet 1, high temperature section cabinet 2 and cooling section cabinet 3 To after meeting job requirement, the working frequency of preliminary heating zone flow fan 101, heat zone flow fan 201 and cooling layer flow fan 301 is protected Hold the preheating air-exhausting duct 4 constant, setting is communicated with preheating section cabinet 1, the cooling, air discharging pipe 5 communicated with cooling section cabinet 3, preheating Air-exhausting duct 4 and cooling, air discharging pipe 5 are communicated with total air-exhausting duct 6 simultaneously, and total exhaust blower 6 is arranged on total air-exhausting duct 6 simultaneously from preheating section Air draft is in cabinet 1 and cooling section cabinet 3 to adjust the pressure of preheating section cabinet 1 and cooling section cabinet 3, without passing through drying The air draft out of preheating section cabinet 1 and cooling section cabinet 3 of the slag hull assembly of motor spindle, efficiently avoids common exhaust pipe and leads The Air Leakage of cause has an impact room pressure, while also avoiding the broken bottle in slag hull assembly and passing through row with distinguished and admirable Air piping is discharged to outdoor and pollutes environment, and can be with by the aperture of the first volume control damper 8 of control, the second volume control damper 9 The specific exhaust air rate in preheating section cabinet 1 and cooling section cabinet 3 is adjusted separately, adjusts separately preheating section cabinet 1 to realize Room where keeping preheating section cabinet 1, cooling section cabinet 3 and drying body chassis with the operating pressure in cooling section cabinet 3 it Between reasonable pressure purpose, easy to adjust, reliable for operation, in adjustment process, total exhaust air rate that total exhaust blower 7 is arranged is equal to The sum of the exhaust air rate of first volume control damper 8 and the second volume control damper 9, without remaining higher air draft Amount, avoids unnecessary energy loss.
In the present embodiment, high temperature air-exhausting duct 10 is communicated on high temperature section cabinet 2, high temperature air-exhausting duct 10 is equipped with dehumidifier air draft Machine 11, when needing to adjust the pressure in high temperature section cabinet 2, by adjusting the dehumidifier exhaust air rate of dehumidifier exhaust blower 11.
In the present embodiment, room where preheating section cabinet 1, high temperature section cabinet 2 and cooling section cabinet 3 and drying body chassis it Between be respectively equipped with the first differential pressure pickup 12, the second differential pressure pickup 13 and third differential pressure pickup 14, pass through the first pressure difference pass Pressure difference where sensor 12 monitors preheating section cabinet 1 and drying body chassis between room is monitored by the second differential pressure pickup 13 Pressure difference where high temperature section cabinet 2 and drying body chassis between room monitors cooling section cabinet 3 by third differential pressure pickup 14 Pressure difference where with drying body chassis between room, once pressure difference is not in the reasonable scope, then respectively by changing the first wind The dehumidifier exhaust air rate of the exhaust air rate of control valve 8, the exhaust air rate of the second volume control damper 9 or dehumidifier exhaust blower 11 is adjusted.
In the present embodiment, preheating section cabinet 1 is additionally provided with preheating air inlet, preheating low efficient filter component 102, pre- air bells cap 103 with preheating high efficiency particulate air filter 104, and the air that preliminary heating zone flow fan 101 is used to enter by preheating air inlet will be preheated slightly Effect filter assemblies 102 enter pre- air bells cap 103 and blow to preheating high efficiency particulate air filter 104, and preheating high efficiency particulate air filter 104, which is located at, to be dried The connectivity part of the top of the foraminous conveyer 15 of dry machine, the first end and preheating section cabinet 1 that preheat air-exhausting duct 4 is located at the defeated of dryer The lower section of mesh belt 15 is sent, i.e. gas in preheating section cabinet 1 is needed ceaselessly outside preheating section cabinet 1 by the way of outer circulation Portion's air inlet, fresh air successively act on after preheating low efficient filter component 102, pre- air bells cap 103 and preheating high efficiency particulate air filter 104 Bottle body on foraminous conveyer 15.
In the present embodiment, high temperature section cabinet 2 is additionally provided with wind-supplying mouth 202, heating holder assembly 203, bringing-up section fan housing component 204, return air frame 205 and hi-temp hi-effective filter 206, heat zone flow fan 201 are used for the benefit wind and high temperature section of wind-supplying mouth 202 The heated holder assembly 203 of circulated air in cabinet 2 sucks bringing-up section fan housing component 204 and blows to hi-temp hi-effective filter 206, and Enter next work cycle by return air frame 205, hi-temp hi-effective filter 206 is located at the upper of the foraminous conveyer 15 of dryer The connectivity part of side, high temperature air-exhausting duct 10 and high temperature section cabinet 2 is located at the lower section of the foraminous conveyer 15 of dryer, high temperature section cabinet 2 Interior gas uses interior circulation pattern, only mends wind on a small quantity when required by wind-supplying mouth 202, and setting return air frame 205 makes to act on The gas of bottle body on foraminous conveyer 15 enters next work cycle.
In the present embodiment, cooling section cabinet 3 is additionally provided with cooling air inlet 302, cooling section low efficient filter 303, cooling section Fan housing component 304 and cooling section high efficiency particulate air filter 305, cooling layer flow fan 301 are cold for that will enter through cooling air inlet 302 Air blows to cooling section high efficiency particulate air filter 305 through cooling section fan housing component 304 through cooling section low efficient filter 303, and cooling section is high Effect filter 305 is located at the top of the foraminous conveyer 15 of dryer, the first end of cooling, air discharging pipe 5 and the company of cooling section cabinet 3 Logical place is located at the lower section of the foraminous conveyer 15 of dryer, i.e. gas in cooling section cabinet 3 need to not be stopped by the way of outer circulation Ground is entered the wind outside cooling section cabinet 3, and fresh air successively passes through cooling air inlet 302, cooling section low efficient filter 303, cooling section The bottle body on foraminous conveyer 15 is acted on after fan housing component 304 and cooling section high efficiency particulate air filter 305.
Dryer Differential pressure control method of the invention the following steps are included:
S1, the working frequency of total exhaust blower 7 and dehumidifier exhaust blower 11 is adjusted to setting value respectively, by room where drying body chassis Setting value during normal production is adjusted to the operating pressure of downstream bottling department；
S2, the working frequency of preliminary heating zone flow fan 101, heat zone flow fan 201 and cooling layer flow fan 301 is adjusted until preheating Pressure difference between section cabinet 1, high temperature section cabinet 2 and cooling section cabinet 3 and drying body chassis place room is all satisfied setting range Value；
S3, it keeps the working frequency of preliminary heating zone flow fan 101, heat zone flow fan 201 and cooling layer flow fan 301 constant, adjusts The working frequency for saving the first volume control damper 8, the aperture of the second volume control damper 9 and dehumidifier exhaust blower 11 makes preheating section cabinet 1, pressure difference in high temperature section cabinet 2 and cooling section cabinet 3 keeps setting range value, and the exhaust air rate of total exhaust blower 7 is made to be equal to the The sum of the exhaust air rate of one volume control damper 8 and the second volume control damper 9.
In dryer Differential pressure control method of the invention, firstly, by the working frequency of total exhaust blower 7 and dehumidifier exhaust blower 11 It is adjusted to setting value respectively, the operating pressure in room where drying body chassis and downstream bottling department is adjusted to setting during normal production Definite value adjusts the working frequency of preliminary heating zone flow fan 101, heat zone flow fan 201 and cooling layer flow fan 301 until preheating section Pressure difference where cabinet 1, high temperature section cabinet 2 and cooling section cabinet 3 and drying body chassis between room is all satisfied setting range value； Then, it keeps the working frequency of preliminary heating zone flow fan 101, heat zone flow fan 201 and cooling layer flow fan 301 constant, adjusts The working frequency of first volume control damper 8, the aperture of the second volume control damper 9 and dehumidifier exhaust blower 11 make preheating section cabinet 1, Pressure difference in high temperature section cabinet 2 and cooling section cabinet 3 keeps setting range value, and total exhaust blower 7 is simultaneously from preheating section cabinet 1 and cold But air draft in section cabinet 3, the aperture by adjusting the first volume control damper 8, the second volume control damper 9 adjust preheating section case respectively The exhaust air rate of body 1, cooling section cabinet 3, and by adjusting the working frequency of dehumidifier exhaust blower 11, adjust 2 dehumidifier of high temperature section cabinet The exhaust air rate of air draft can make the pressure difference in preheating section cabinet 1, high temperature section cabinet 2 and cooling section cabinet 3 be maintained at setting range The pressure adjustment of value, three sections of cabinets is relatively independent, will not interfere with each other, therefore, can quickly complete adjustment, easy to adjust, simple And it is accurate and reliable, in adjustment process, the exhaust air rate of total exhaust blower 7 is made to be equal to the first volume control damper 8 and the second Boiler pressure control The sum of the exhaust air rate of valve 9 adjusts immediately, without remaining higher exhaust air rate, avoids unnecessary energy loss.
In the present embodiment, in step sl, according to the pressure difference that the first differential pressure pickup 12 detects, preheating laminar winds are adjusted The working frequency of machine 101, the pressure 2-10pa in room where making the pressure in preheating section cabinet 1 be higher than drying body chassis, according to The pressure difference of second differential pressure pickup 13 detection, adjusts the working frequency of heat zone flow fan 201, makes in high temperature section cabinet 2 The pressure 3-12pa in room where pressure is higher than drying body chassis is adjusted according to the pressure difference that third differential pressure pickup 14 detects The working frequency of cooling layer flow fan 301, the pressure 2- in room where making the pressure in cooling section cabinet 3 be higher than drying body chassis 10pa。
In the present embodiment, in step s3, when the pressure in room changes where drying body chassis, the first wind is adjusted The aperture of control valve 8 and the working frequency of dehumidifier exhaust blower 11 keep the aperture of the second volume control damper 9 constant；When filling Between pressure when changing, adjust the aperture of the second volume control damper 9, keep the aperture and dehumidifier of the first volume control damper 8 The working frequency of exhaust blower 11 is constant, and when the pressure in room changes where drying body chassis, what is typically directly influenced is Pressure value in preheating section cabinet 1 and high temperature section cabinet 2, therefore only adjust the aperture and dehumidifier air draft of the first volume control damper 8 The working frequency of machine 11, and when the pressure of bottling department changes, what is typically directly influenced is the cooling directly communicated Pressure value in section cabinet 3, therefore the aperture of the second volume control damper 9 is only adjusted, further simplify adjustment operation.
In the present embodiment, in step sl, the setting value of 11 working frequency of total exhaust blower 7 and dehumidifier exhaust blower is respectively it The median of normal range of operation, it is subsequent need to adjust when, guarantee the working frequency of total exhaust blower 7 and dehumidifier exhaust blower 11 to It is upper to have enough adjustment spaces downwards.
Although the present invention has been disclosed as a preferred embodiment, however, it is not intended to limit the invention.It is any to be familiar with ability The technical staff in domain, without deviating from the scope of the technical scheme of the present invention, all using the technology contents pair of the disclosure above Technical solution of the present invention makes many possible changes and modifications or equivalent example modified to equivalent change.Therefore, all Without departing from the content of technical solution of the present invention, according to the present invention technical spirit any simple modification made to the above embodiment, Equivalent variations and modification, all shall fall within the protection scope of the technical scheme of the invention.

Claims (10)

1.一种烘干机，包括依次设置的预热段箱体（1）、高温段箱体（2）和冷却段箱体（3），所述预热段箱体（1）、高温段箱体（2）和冷却段箱体（3）内依次设有预热层流风机（101）、高温层流风机（201）和冷却层流风机（301），其特征在于：所述烘干机还包括预热排风管（4）、冷却排风管（5）、总排风管（6）和总排风机（7），所述预热排风管（4）、冷却排风管（5）的第一端分别与所述预热段箱体（1）和冷却段箱体（3）连通，所述预热排风管（4）、冷却排风管（5）的第二端均与所述总排风管（6）连通，所述预热排风管（4）、冷却排风管（5）上分别设有第一风量控制阀（8）、第二风量控制阀（9），所述总排风机（7）装设在所述总排风管（6）上。1. A dryer, comprising a preheating section box (1), a high temperature section box (2) and a cooling section box (3) arranged in sequence, the preheating section box (1), the high temperature section A preheating laminar flow fan (101), a high temperature laminar flow fan (201) and a cooling laminar flow fan (301) are sequentially arranged in the box body (2) and the cooling section box body (3), characterized in that: the drying The machine also includes a preheating exhaust duct (4), a cooling exhaust duct (5), a main exhaust duct (6) and a main exhaust fan (7), and the preheating exhaust duct (4), cooling exhaust duct The first ends of (5) communicate with the preheating section box (1) and the cooling section box (3) respectively, and the second ends of the preheating exhaust pipe (4) and the cooling exhaust pipe (5) Both ends are connected with the main exhaust pipe (6), and the preheating exhaust pipe (4) and the cooling exhaust pipe (5) are respectively provided with a first air volume control valve (8) and a second air volume control valve (9), the main exhaust fan (7) is installed on the main exhaust pipe (6). 2.根据权利要求1所述的烘干机，其特征在于：所述高温段箱体（2）上连通有高温排风管（10），所述高温排风管（10）上设有抽湿排风机（11）。2. The dryer according to claim 1, characterized in that: the high-temperature section box (2) is connected with a high-temperature exhaust pipe (10), and the high-temperature exhaust pipe (10) is provided with a suction Wet exhaust fan (11). 3.根据权利要求1所述的烘干机，其特征在于：所述预热段箱体（1）、高温段箱体（2）和冷却段箱体（3）与烘干机箱体所在房间之间分别设有第一压差传感器（12）、第二压差传感器（13）和第三压差传感器（14）。3. The dryer according to claim 1, characterized in that: the preheating section box (1), the high temperature section box (2), the cooling section box (3) and the room where the dryer box is located A first differential pressure sensor (12), a second differential pressure sensor (13) and a third differential pressure sensor (14) are respectively arranged between them. 4.根据权利要求1至3中任一项所述的烘干机，其特征在于：所述预热段箱体（1）还设有预热进风口、预热粗效过滤器组件（102）、预热风罩（103）和预热高效过滤器（104），所述预热层流风机（101）用于将通过预热进风口进入的空气经预热粗效过滤器组件（102）进入所述预热风罩（103）并吹向所述预热高效过滤器（104），所述预热高效过滤器（104）位于所述烘干机的输送网带（15）的上方，所述预热排风管（4）的第一端与所述预热段箱体（1）的连通处位于所述烘干机的输送网带（15）的下方。4. The dryer according to any one of claims 1 to 3, characterized in that: the preheating section box (1) is also provided with a preheating air inlet, a preheating coarse filter assembly (102 ), a preheating air cover (103) and a preheating high-efficiency filter (104), the preheating laminar flow fan (101) is used to preheat the air entering through the preheating air inlet through the preheating coarse filter assembly (102 ) into the preheating air hood (103) and blow to the preheating high efficiency filter (104), the preheating high efficiency filter (104) is located above the conveyor belt (15) of the dryer , the connection between the first end of the preheating exhaust pipe (4) and the preheating section box (1) is located below the conveying mesh belt (15) of the dryer. 5.根据权利要求2或3所述的烘干机，其特征在于：所述高温段箱体（2）还设有补风口（202）、加热座组件（203）、加热段风罩组件（204）、回风框（205）和高温高效过滤器（206），所述高温层流风机（201）用于将补风口（202）的补风和高温段箱体（2）内的循环风经加热座组件（203）吸入加热段风罩组件（204）并吹向高温高效过滤器（206），并经过回风框（205）进入下一个作业循环，所述高温高效过滤器（206）位于所述烘干机的输送网带（15）的上方，所述高温排风管（10）与所述高温段箱体（2）的连通处位于所述烘干机的输送网带（15）的下方。5. The dryer according to claim 2 or 3, characterized in that: the high-temperature section box (2) is also provided with an air supply port (202), a heating seat assembly (203), a heating section air cover assembly ( 204), return air frame (205) and high-temperature high-efficiency filter (206), the high-temperature laminar flow fan (201) is used to make up the air from the air supply port (202) and the circulating air in the high-temperature section box (2) It is sucked into the heating section air cover assembly (204) through the heating seat assembly (203) and blown to the high-temperature high-efficiency filter (206), and enters the next working cycle through the return air frame (205). The high-temperature high-efficiency filter (206) Located above the conveyor belt (15) of the dryer, the connection between the high-temperature exhaust pipe (10) and the high-temperature section box (2) is located on the conveyor belt (15) of the dryer ) below. 6.根据权利要求1至3中任一项所述的烘干机，其特征在于：所述冷却段箱体（3）还设有冷却进风口（302）、冷却段粗效过滤器（303）、冷却段风罩组件（304）和冷却段高效过滤器（305），所述冷却层流风机（301）用于将经冷却进风口（302）进入的冷空气经冷却段粗效过滤器（303）经冷却段风罩组件（304）吹向冷却段高效过滤器（305），所述冷却段高效过滤器（305）位于所述烘干机的输送网带（15）的上方，所述冷却排风管（5）的第一端与所述冷却段箱体（3）的连通处位于所述烘干机的输送网带（15）的下方。6. The dryer according to any one of claims 1 to 3, characterized in that: the cooling section box (3) is also provided with a cooling air inlet (302), a cooling section coarse filter (303 ), the cooling section air cover assembly (304) and the cooling section high-efficiency filter (305), the cooling laminar flow fan (301) is used to pass the cold air entering through the cooling air inlet (302) through the cooling section rough filter (303) is blown to the high-efficiency filter (305) of the cooling section through the air cover assembly (304) of the cooling section, and the high-efficiency filter (305) of the cooling section is located above the conveyor belt (15) of the dryer, so The connection between the first end of the cooling exhaust pipe (5) and the cooling section box (3) is located below the conveying mesh belt (15) of the dryer. 7.一种烘干机压差控制方法，其特征在于，包括以下步骤：7. A method for controlling differential pressure of a dryer, comprising the following steps: S1、将总排风机（7）和抽湿排风机（11）的工作频率分别调至设定值，将烘干机箱体所在房间和下游灌装间的工作压力均调至正常生产时的设定值；S1. Adjust the working frequency of the main exhaust fan (7) and the dehumidification exhaust fan (11) to the set values respectively, and adjust the working pressure of the room where the dryer box is located and the downstream filling room to the normal production setting Value; S2、调节预热层流风机（101）、高温层流风机（201）和冷却层流风机（301）的工作频率直至预热段箱体（1）、高温段箱体（2）和冷却段箱体（3）与烘干机箱体所在房间之间的压差均满足设定范围值；S2. Adjust the operating frequency of the preheating laminar flow fan (101), high temperature laminar flow fan (201) and cooling laminar flow fan (301) until the preheating section box (1), high temperature section box (2) and cooling section The pressure difference between the box (3) and the room where the dryer box is located meets the set range value; S3、保持预热层流风机（101）、高温层流风机（201）和冷却层流风机（301）的工作频率不变，调节第一风量控制阀（8）、第二风量控制阀（9）的开度以及抽湿排风机（11）的工作频率使预热段箱体（1）、高温段箱体（2）和冷却段箱体（3）内的压差保持设定范围值，并使总排风机（7）的排风量等于第一风量控制阀（8）和第二风量控制阀（9）的排风量之和。S3. Keep the operating frequencies of the preheating laminar flow fan (101), high temperature laminar flow fan (201) and cooling laminar flow fan (301) unchanged, adjust the first air volume control valve (8), the second air volume control valve (9 ) and the operating frequency of the dehumidification exhaust fan (11) keep the pressure difference in the preheating section box (1), high temperature section box (2) and cooling section box (3) within the set range, And the exhaust air volume of the total exhaust fan (7) is equal to the sum of the exhaust air volumes of the first air volume control valve (8) and the second air volume control valve (9). 8.根据权利要求7所述的烘干机压差控制方法，其特征在于：在所述步骤S2中，根据第一压差传感器（12）检测的压差值，调节预热层流风机（101）的工作频率，使预热段箱体（1）内的压力高于烘干机箱体所在房间的压力2-10pa，根据第二压差传感器（13）检测的压差值，调节高温层流风机（201）的工作频率，使高温段箱体（2）内的压力高于烘干机箱体所在房间的压力3-12pa，根据第三压差传感器（14）检测的压差值，调节冷却层流风机（301）的工作频率，使冷却段箱体（3）内的压力高于烘干机箱体所在房间的压力2-10pa。8. The method for controlling the differential pressure of the dryer according to claim 7, characterized in that in the step S2, the preheating laminar flow fan ( 101) working frequency, so that the pressure in the preheating section box (1) is 2-10pa higher than the pressure in the room where the dryer box is located, and adjust the high temperature layer according to the pressure difference detected by the second pressure difference sensor (13) The working frequency of the air blower (201) is such that the pressure in the high-temperature section box (2) is 3-12pa higher than the pressure in the room where the dryer box is located. According to the pressure difference detected by the third pressure difference sensor (14), adjust The operating frequency of the cooling laminar flow fan (301) is such that the pressure in the cooling section box (3) is 2-10pa higher than the pressure in the room where the dryer box is located. 9.根据权利要求7或8所述的烘干机压差控制方法，其特征在于：在所述步骤S3中，当烘干机箱体所在房间的压力发生变化时，调节第一风量控制阀（8）的开度和抽湿排风机（11）的工作频率，保持第二风量控制阀（9）的开度不变；当灌装间的压力发生变化时，调节第二风量控制阀（9）的开度，保持第一风量控制阀（8）的开度和抽湿排风机（11）的工作频率不变。9. The method for controlling the differential pressure of the dryer according to claim 7 or 8, characterized in that: in the step S3, when the pressure in the room where the dryer box is located changes, the first air volume control valve ( 8) and the operating frequency of the dehumidification exhaust fan (11), keep the opening of the second air volume control valve (9) unchanged; when the pressure in the filling room changes, adjust the second air volume control valve (9 ), keep the opening of the first air volume control valve (8) and the operating frequency of the dehumidifier (11) unchanged. 10.根据权利要求7或8所述的烘干机压差控制方法，其特征在于：在所述步骤S1中，总排风机（7）和抽湿排风机（11）工作频率的设定值分别为其正常工作范围的中间值。10. The pressure difference control method of the dryer according to claim 7 or 8, characterized in that: in the step S1, the set value of the operating frequency of the main exhaust fan (7) and the dehumidification exhaust fan (11) are the middle values of their normal operating range, respectively.
CN201810820455.6A 2018-07-24 2018-07-24 A kind of dryer and its Differential pressure control method Pending CN109028881A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810820455.6A CN109028881A (en) 2018-07-24 2018-07-24 A kind of dryer and its Differential pressure control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810820455.6A CN109028881A (en) 2018-07-24 2018-07-24 A kind of dryer and its Differential pressure control method

Publications (1)

Publication Number Publication Date
CN109028881A true CN109028881A (en) 2018-12-18

Family

ID=64644790

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810820455.6A Pending CN109028881A (en) 2018-07-24 2018-07-24 A kind of dryer and its Differential pressure control method

Country Status (1)

Country Link
CN (1) CN109028881A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2370711A1 (en) * 1999-04-27 2000-11-02 Mohamed A. Hashish Method and apparatus for pressure processing a pumpable substance
CN204202334U (en) * 2014-09-12 2015-03-11 上海华东制药机械有限公司 A kind of heated-air circulation oven
US9234700B1 (en) * 2013-03-15 2016-01-12 Carbonyx, Inc. Tunnel oven air leakage controller, system and method
CN206257943U (en) * 2016-11-30 2017-06-16 楚天智能机器人（长沙）有限公司 A kind of control device for adjusting tunnel sterilization dryer laminar flow blast
CN207335384U (en) * 2017-10-16 2018-05-08 楚天科技股份有限公司 A kind of drying baker
CN108225003A (en) * 2018-01-09 2018-06-29 广东环葆嘉节能科技有限公司 Energy-saving hot-blast drying system and energy-saving hot-blast drying means
CN108240765A (en) * 2018-01-09 2018-07-03 广东环葆嘉节能科技有限公司 Two fans hot air drying system and two fans air drying methods

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2370711A1 (en) * 1999-04-27 2000-11-02 Mohamed A. Hashish Method and apparatus for pressure processing a pumpable substance
US9234700B1 (en) * 2013-03-15 2016-01-12 Carbonyx, Inc. Tunnel oven air leakage controller, system and method
CN204202334U (en) * 2014-09-12 2015-03-11 上海华东制药机械有限公司 A kind of heated-air circulation oven
CN206257943U (en) * 2016-11-30 2017-06-16 楚天智能机器人（长沙）有限公司 A kind of control device for adjusting tunnel sterilization dryer laminar flow blast
CN207335384U (en) * 2017-10-16 2018-05-08 楚天科技股份有限公司 A kind of drying baker
CN108225003A (en) * 2018-01-09 2018-06-29 广东环葆嘉节能科技有限公司 Energy-saving hot-blast drying system and energy-saving hot-blast drying means
CN108240765A (en) * 2018-01-09 2018-07-03 广东环葆嘉节能科技有限公司 Two fans hot air drying system and two fans air drying methods

Similar Documents

Publication Publication Date Title
CN202281479U (en) High-temperature box for tunnel type sterilizing and drying machine
CN102490938B (en) Air feed and exhaust system for tunnel-type sterilizing dryer
CN206262826U (en) A kind of Baking Chamber For Automobile Painting
CN113899187B (en) Air pressure balance control method for tunnel type sterilization dryer and tunnel type sterilization dryer
CN204914881U (en) Stoving heated air circulation device of printing machine
CN108507343A (en) A kind of pressure balance control method and device in dryer machine system
CN107131743A (en) One kind is used for solar silicon wafers drying plant
CN109028881A (en) A kind of dryer and its Differential pressure control method
CN206973584U (en) Process tail gas processing unit
CN106556229A (en) A kind of tunnel sterilizing and drying machine and temperature-controlled process
CN104480276B (en) A kind of vertical continous way tempering furnace
CN206438140U (en) A kind of drying room for being used to dry leather
CN206410476U (en) A kind of twin-stage high-temperature dehumidification drying plant
CN205373380U (en) Two -way drying system with waste heat recovery machine
CN205536365U (en) New fan of control by temperature change formula heat transfer
CN206778868U (en) An oven for a coating compound machine
CN209399712U (en) Dry filling linkage production line
CN209679524U (en) A kind of spray-drying installation
CN205505655U (en) A multistage circulation drying system for raising use granule chloroteracycline
CN106196973A (en) A kind of tunnel sterilizing and drying machine and laminar flow control method
CN208887418U (en) Coating chassis and full heat exchange device
CN206724593U (en) A kind of air circulation recovering mechanism of baking room
CN204474721U (en) A kind of vertical continous way tempering stove
CN205641884U (en) A hot air heating exchange circulation oven
CN205878861U (en) Safe energy -conserving hot -blast control system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20181218

RJ01 Rejection of invention patent application after publication