CN205871492U - VOC detects control system suitable for gravure press drying system - Google Patents

Abstract

The utility model provides a VOC detects control system suitable for gravure press drying system, includes that touch -sensitive screen, programmable controller, VOC detect mouthful one, sample cock no. 1, VOC detect mouthfuls two, sample cock no. 2, VOC detector, touch -sensitive screen and programmable controller number of pass carry out the intercommunication according to the line connection, and programmable controller signal output part connects the VOC detector, and VOC detector intercommunication detects mouthful one and detects mouthful two, VOC with VOC and detect mouthful one and detect mouthfuls two with VOC and go up to correspond and be equipped with sample cock no. 1 and sample cock no. 2 respectively. The utility model discloses originally, be applicable to gravure press drying system, the VOC measuring is controlled and is used for detecting the VOC concentration that total exhaust pipe is interior and each colour cell oven is interior, for the location -based service of automatically regulated air door to it provides good condition to solve VOC emission problem for follow -up thorough low cost.

Description

A kind of VOC detecting and controlling system being applicable to intaglio press drying system

Technical field

This utility model relates to intaglio press drying system, particularly relates to one and is applicable to intaglio press drying system VOC detecting and controlling system.

Background technology

Intaglio press employing Rotary directly prints mode and prints, and forme direct engraving, on plate cylinder, is adopted Ink is given with leaching ink or ink-jetting style.Owing to layer of ink is thick, it is contemplated that ink setting and solvent volatilization, it is necessary to have drying system.

The intaglio printing press sold in the market, relies primarily on operator and manually regulates drying system according to practical experience Running status: manually the regulation new air door of each printing element and return air door reach the size of the most required intake, manually adjust Save the exhaust door of parallel exhaust duct to reach the size of respective exhaust air rate, and make drying oven be in micro-vacuum state.But because of Being multiple spot regulation for air draft, influence each other, between system each point, leeway is relatively big, easily causes drying oven exhaust gas leakage, is difficult to Adjustment, so needing to strengthen exhaust air rate to guarantee that baking oven reduces leakage, then adds this only manually the most repeatedly adjustment with sensation and is One is loaded down with trivial details and be difficult to the thing held, and experience can be absorbed in the predicament adjusting worse and worse not, so production exercise in actual production Make personnel generally will not intense adjustment, in order to meet major part technique air quantity and the improvement of self working environment, the most all keep watch Amount regulates bigger, and again regulates substantially without because product is different, not only adds and adds thermal energy consumption and air draft wind Machine runs power, also increases input cost and run cost that follow-up VOC emission is administered simultaneously.Meanwhile, drying system is each Printing element design temperature must manually set, easily on each colour cell temp controlled meter according to different requirement of every kind of Product Process Specification error occurs, causes product quality accident.

In sum, existing drying system existing problems mainly have: each colour cell blast coupling difficulty, temperature setting easily occur Error, exhaust air rate are excessive, VOC emission too high, follow-up improvement cost is big to add thermal energy consumption.The electric control system of this drying system is just Design to solve the problems referred to above.

Utility model content

In view of this, technical problem to be solved in the utility model is: a kind of automatization level will be provided high, run letter Single reliable, safe operation coefficient can be improved, energy consumption is greatly lowered, reduces discharge amount of exhaust gas and be applicable to intaglio press and be dried and be The VOC detecting and controlling system of system.

In order to achieve the above object, this utility model adopts the following technical scheme that and realizes:

A kind of VOC detecting and controlling system being applicable to intaglio press drying system, including touch screen, PLC technology Device, VOC detection mouth one, sample cock one, VOC detect mouth two, sample cock two, VOC detector, it is characterised in that: described tactile Touching screen and Programmable Logic Controller to be in communication with each other by data wire connection, Programmable Logic Controller signal output part connects VOC inspection Surveying instrument, VOC detector connection VOC detects mouth one and VOC and detects mouth two, corresponding difference on VOC detection mouth one and VOC detection mouth two It is provided with sample cock one and sample cock two.

As shown from the above technical solution, compared to existing technology, the beneficial effects of the utility model are:

This utility model is originally applicable to intaglio press drying system, and equipment automatization level is high, runs simple and reliable, energy Improve safe operation coefficient, VOC detects the VOC concentration controlled in system is used for detecting total exhaust duct and in each colour cell baking oven, for certainly Dynamic damper location-based service, and solve, for follow-up thorough low cost, the condition that VOC emission problem provides good.

Accompanying drawing explanation

Fig. 1 is this utility model structural representation；

1, touch screen；2, Programmable Logic Controller；3, exhaust blower converter；4, exhaust blower；5, total exhaust duct；6, blast detection Mouthful；7, VOC detects mouth one；8, sample cock one；9, wind pressure transmitter；10, temp controlled meter；11, new air door executer；12, return air Door executor；13, exhaust door executor；14, air inlet fan；15, heater；16, VOC detects mouth two；17, sample cock two；18、 VOC detector.

Detailed description of the invention

In order to make those skilled in the art can be further understood that feature of the present utility model and technology contents, refer to Lower about detailed description of the present utility model and accompanying drawing.

Refer to shown in Fig. 1, it is adaptable to the electric control system of intaglio press drying system, including touch screen 1, can compile Range controller 2, exhaust duct control system of invariable pressure, some groups of baking oven monochrome drying control systems and VOC detecting and controlling system, described Often group baking oven monochrome drying control system is pre-seted control system by temp controlled meter both-way communication control system and MOD and forms.

Described touch screen 1 and Programmable Logic Controller 2 are in communication with each other by data wire connection.

Described exhaust duct control system of invariable pressure connects wind pressure transmitter by the blast detection mouth 6 being provided with in total exhaust duct 5 9, wind pressure transmitter 9 signal output part is connected to Programmable Logic Controller 2, and Programmable Logic Controller 2 connects the exhaust blower of total exhaust duct 5 Converter 3, transmits exhaust blower converter 3 by signal, and exhaust blower converter 3 connects exhaust blower 4 and regulates air quantity.

The temp controlled meter 10 often organized in monochromatic drying control system is passed through RS485 by described temp controlled meter both-way communication control system Bus parallel connection is on Programmable Logic Controller 2, and temp controlled meter 10 controls heater 15.

Described MOD pre-sets control system and is connected new air door respectively held by Programmable Logic Controller 2 signal output part Row device 11, time air door executer 12, exhaust door executor 13 and air inlet fan 14, it is new that new air door executer 11 controls the regulation of new air door Air quantity, returns air door executer 12 and controls return air door regulation air draft capacity of returns, and exhaust door executor 13 controls exhaust door regulation air draft Amount.

Described VOC detecting and controlling system connects VOC detector 18 by Programmable Logic Controller 2 signal output part, and VOC detects Instrument 18 connects the VOC detection mouth 1 in total exhaust duct 5 and often organizes the VOC detection mouth 2 16 of monochromatic drying control system, and VOC examines Survey correspondence on mouth one 7 and VOC detection mouth 2 16 and be respectively equipped with sample cock 1 and sample cock 2 17.

This utility model is mainly using touch screen 1 as centralized operation and display unit, with Programmable Logic Controller 2 as core, Carry out calculation process and logic control, make security of system stable operation.Owing to using Programmable Logic Controller 2 centralized Control, touch Screen 1 operation and display, real time operation data are very clear, and warning message is clear, and system running state, can be big in real time control The big maintenance reducing system and maintenance difficulty, operation is very easy.

But the foregoing is only preferable possible embodiments of the present utility model, and be not used to limit to patent of the present utility model Scope, therefore the equivalent structure change that all utilization this utility model description and accompanying drawing content are made, be the most in like manner included in this practicality In novel scope.

Claims (1)

1. be applicable to a VOC detecting and controlling system for intaglio press drying system, including touch screen, Programmable Logic Controller, VOC detection mouth one, sample cock one, VOC detect mouth two, sample cock two, VOC detector, it is characterised in that: described touch screen Being in communication with each other by data wire connection with Programmable Logic Controller, Programmable Logic Controller signal output part connects VOC detector, VOC detector connection VOC detection mouth one and VOC detects mouth two, and on VOC detection mouth one and VOC detection mouth two, correspondence is respectively equipped with Sample cock one and sample cock two.