CN103954461B - A kind of printer efficiency measuring method - Google Patents

Abstract

The invention discloses a kind of printer efficiency measuring method, comprise the following steps: measured the general power of printer by energy meter, make general power be multiplied by the unit interval and obtain the power consumption of printer unit interval；Measured air mass flow, the pathogenic wind-warm of drying baker air inlet and the pathogenic wind-warm of air outlet entered in printer drying baker by anemometer, calculate the thermal energy consumption of printer unit interval；Measure print speed printing speed and the leaflet fabric width of printer, the energy resource consumption of unit of account square metre single full version printing；The method of the present invention, the quantity of energy consumed by the full version printing of unit of account square metre printing is used as evaluating the index of printer efficiency, and the normal production and the method that do not affect factory during measurement are the most efficient.

Description

A kind of printer efficiency measuring method

Technical field

The present invention relates to a kind of efficiency measuring method, particularly relate to a kind of printer efficiency measuring method.

Background technology

Energy-saving and emission-reduction are the inevitable choices built a resource-conserving society, and are transformations of promoting economic restructuring The only way which must be passed of growth pattern, China's energy law regulation, the year two thousand twenty China unit GDP dioxy Change carbon emission and decline 40%-45% than 2005.At present in printer field, lack the energy of complete set Effect measuring method, carrys out the efficiency situation of the various different printing machines with unified standard evaluation.

Summary of the invention

In view of this, it is an object of the invention to propose a kind of do not affect factory normal produce, the highest The printer efficiency measuring method of effect.

A kind of printer efficiency measuring method provided based on the above-mentioned purpose present invention, comprises the following steps:

(1) measured general power P of printer by energy meter, make general power P be multiplied by unit interval Δ t Obtain the power consumption E of printer unit interval_D；

(2) air mass flow φ entered in printer drying baker is measured by anemometer₀, drying baker air intake Pathogenic wind-warm T of mouth₀Pathogenic wind-warm T with air outlet₁, calculated the heat energy of printer unit interval by equation below and disappear Consumption E_p:

$E_p=c_p\·\frac{P_0\·{\mathrm{\φ}}_0\·\mathrm{\Δt}\·M}{R\·T_0}(T_1-T_0)$

Wherein, P₀For the pressure of outside air, c_pFor air themperature it isTime specific heat capacity, R is Mol gas constant, M is molal weight.

(3) print speed printing speed V and the leaflet fabric width B of printer are measured, by equation below unit of account The energy resource consumption E of square metre single full version printing_d:

$E_d=\frac{E_D+E_p}{\mathrm{VB\Δt\θ}}$

Wherein, needed for θ is leaflet, in forme, areas accounts for the percentage ratio of total printing area.

Preferably, described unit interval Δ t is under printer steady-working state.

Optionally, general power P of described printer is the energy meter measured value at printer main switch or print The summation of the energy meter measured value of brush machine various piece.

Preferably, air mass flow φ in drying baker is measured₀, pathogenic wind-warm T of air inlet₀Pathogenic wind-warm with air outlet T₁Step farther include:

The cross section of drying baker air inlet and air outlet is divided equally into several regions, in each described district Measure air mass flow and pathogenic wind-warm in territory, and measurement result is averaged.

Preferably, all measure 2-3 minute in each described region.

From the above it can be seen that the printer efficiency measuring method that the present invention provides, printed by measurement The power consumption of brush machine, thermal energy consumption and relevant printing parameter, through calculating sign unit square rice The printer energy valid value of the energy resource consumption of single full version printing；Measuring method is simple, easily realizes, has relatively High certainty of measurement.

Accompanying drawing explanation

Fig. 1 is air mass flow in the embodiment of the present invention, pathogenic wind-warm metering system schematic diagram.

Detailed description of the invention

For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with being embodied as Example, and referring to the drawings, the present invention is described in more detail.

A kind of printer efficiency measuring method that the embodiment of the present invention provides, comprises the following steps:

(1) measured general power P of printer by energy meter, make general power P be multiplied by unit interval Δ t Obtain the power consumption E of printer unit interval_D；

(2) air mass flow φ entered in printer drying baker is measured by anemometer₀, drying baker air intake Pathogenic wind-warm T of mouth₀Pathogenic wind-warm T with air outlet₁, calculated the heat energy of printer unit interval by equation below and disappear Consumption E_p:

$E_p=c_p\·\frac{P_0\·{\mathrm{\φ}}_0\·\mathrm{\Δt}\·M}{R\·T_0}(T_1-T_0)$

Wherein, P₀For the pressure of outside air, c_pFor air themperature it isTime specific heat capacity, R is Mol gas constant, M is molal weight.

(3) print speed printing speed V and the leaflet fabric width B of printer are measured, by equation below unit of account The energy resource consumption E of square metre single full version printing_d:

$E_d=\frac{E_D+E_p}{\mathrm{VB\Δt\θ}}$

Wherein, needed for θ is leaflet, in forme, areas accounts for the percentage ratio of total printing area.

The printer efficiency measuring method of the present invention, is divided into three steps generally, is to measure electric energy respectively Consuming, measure thermal energy consumption, measure relevant printing parameter, the electric energy of the unit interval by recording disappears Consumption, the thermal energy consumption of unit interval and relevant printing parameter, calculate unit square rice single full version print The energy resource consumption of brush, as the evaluation index of printer efficiency.

Power consumption described in the embodiment of the present invention, refers at regular hour internal circuit element or equipment Absorb or the electric flux that sends, the energy that i.e. electrical network provides to printer, including in printer with resistance wire The energy that mode of heating consumes, the electricity of the consumption such as motor, blower fan, controller, control circuit.

When measuring printer power, printer need to be made to be under steady-working state, to ensure to measure essence Degree.The embodiment of the present invention preferably measures the total work of printer at printer main switch by energy meter Rate, the measured value of energy meter is printer general power P, then the electric energy E of printer unit interval_DConsume For: E_D=P·Δt。

Additionally by measuring the power of printer various piece respectively, and each measured value can be added work For the general power of printer, each major part of printer includes: reductor (unreeling), unreel motor, Carry-over pinch rolls motor, air-cooler (top), space of a whole page hair-dryer, water pump, air pump, oil pump, refrigeration machine, sky Air compressor, reductor (rolling), resistance wire, hot-air blower, correction motor, illumination, doctor electricity Machine.Independent measurement above-mentioned printing can also be calculated by the efficiency measuring method of the embodiment of the present invention The efficiency of machine each several part.

In the thermal energy consumption of the present embodiment is measured, the thermal energy consumption of printer refers mainly in the course of the work The energy that conveyance conduit is transmitted to printer drying system, mainly includes the energy that steam heat exchange consumes The energy etc. that the energy of amount, combustion of natural gas consumption, deep fat heat exchange consume, does not include Resistant heating The energy consumed.In printer, steam, natural gas, deep fat etc. are all by the cold wind in heat exchanger Heating, makes cold wind temperature raise, and becomes hot blast, then by blower fan, hot blast is inputted drying baker, makes stream Through printing surface, add being dried of thermally printed surface ink.By measuring air quantity and the wind that air inlet enters Temperature, and in drying baker, the temperature that air is heated to, drying baker just can be obtained according to correlation computations The heat energy that the heat energy consumed, i.e. printer consume.

In the present embodiment, by anemometer, the drying baker of printer is measured, concrete measurement bag Include: air inlet or exhaust outlet at drying baker measure air mass flow φ entered in printer drying baker₀；? The air inlet of drying baker measures pathogenic wind-warm T of air inlet₀；Air outlet at drying baker measures the pathogenic wind-warm in air port T₁。

As preferably, when carrying out above-mentioned each DATA REASONING, by drying baker air inlet and air outlet Cross section is divided equally into several regions, in each described area inner measuring air mass flow and pathogenic wind-warm, and will Measurement result is averaged.Concrete, according to the cross sectional shape of different air inlet/air outlets, put down All it is divided into several regions, and in each region, carries out the measurement of flow and pathogenic wind-warm respectively.With reference to figure 1, for air mass flow, pathogenic wind-warm metering system schematic diagram in the embodiment of the present invention.In the present embodiment, printer The cross sectional shape of drying baker air inlet and air outlet is rectangle, then by square-section averagely for nine districts Territory, uses anemometer, respectively in each area inner measuring air mass flow and pathogenic wind-warm, and nine will measured Data are averaged, as final measured value, it is to avoid air mass flow and temperature distributing disproportionation is even causes Certainty of measurement reduce problem.It should be noted that above-mentioned region dividing mode and quantity are only this A kind of embodiment of invention, according to cross sectional shape and the concrete measurement need of different air inlet/air outlets , region dividing mode and quantity can change, and accordingly, region divides the thinnest, and certainty of measurement is more High.

Further, when measuring air mass flow and the pathogenic wind-warm of air inlet/air outlet, in each described region All measure 2-3 minute, make measured value keep stable, to ensure certainty of measurement.For improving measurement further Precision, also needs during measurement to make the air inlet/air outlet of printer drying baker avoid the occurrence of the object stopping air port Occur, meanwhile, avoid operator's health to block air port as far as possible, affect the wind speed in air port.

After completing above-mentioned measurement process, calculated the thermal energy consumption of printer unit interval by equation below E_p:

$E_p=c_p\·\frac{P_0\·{\mathrm{\φ}}_0\·\mathrm{\Δt}\·M}{R\·T_0}(T_1-T_0)$

Wherein, P₀For the pressure of outside air, c_pFor air themperature it isTime specific heat capacity, R is Mol gas constant, M is molal weight；Except the measured value φ measuring gained₀、T₀、T₁Outward, other values All such as numerical value such as pressure, specific heat capacity, constants all by consulting relevant instructive manuals or data acquisition.

After completing the power consumption of printer unit interval and the measurement of thermal energy consumption, finally need to measure print Some relevant parameters of brush machine, including print speed printing speed V and the leaflet fabric width B of printer.By as follows The energy resource consumption E of formula unit of account square metre single full version printing_d:

$E_d=\frac{E_D+E_p}{\mathrm{VB\Δt\θ}}$

Wherein, θ is that in forme, areas accounts for the percentage ratio of total printing area needed for leaflet, and θ is by printing In swabbing group number and every piece of forme, picture and text percentage ratio is determined, in concrete application, can by plate-making before Related software calculates or draws the picture percentage ratio of forme after being completed for printing with instrument detection..

As a example by intaglio press, by the efficiency measuring method of the present invention, to using different heating mode Intaglio press carried out efficiency measurement, result is as shown in table 1.

The intaglio press efficiency of table 1 different heating mode

From table 1, in conventional resistance wire, deep fat, steam, the intaglio printing of three kinds of mode of heatings In the energy valid value of machine, the intaglio press of steam mode of heating is used substantially to have higher efficiency.

Those of ordinary skill in the field are it is understood that the foregoing is only the specific embodiment of the present invention , be not limited to the present invention, all within the spirit and principles in the present invention, that is done any repaiies Change, equivalent, improvement etc., should be included within the scope of the present invention.

Claims (4)

1. a printer efficiency measuring method, it is characterised in that comprise the following steps:

(1) under printer is in steady-working state, the general power of printer is measured by energy meter P, makes general power P be multiplied by unit interval Δ t and obtains the power consumption E of printer unit interval_D；

(2) air mass flow φ entered in printer drying baker is measured by anemometer₀, drying baker air intake Pathogenic wind-warm T of mouth₀Pathogenic wind-warm T with air outlet₁, calculated the heat energy of printer unit interval by equation below and disappear Consumption E_p:

$E_p=c_p\·\frac{P_0\·{\mathrm{\φ}}_0\·\mathrm{\Δ}t\·M}{R\·T_0}(T_1-T_0)$

Wherein, P₀For the pressure of outside air, c_pFor air themperature it isTime specific heat capacity, R is Mol gas constant, M is molal weight；

(3) print speed printing speed V and the leaflet fabric width B of printer are measured, by equation below unit of account The energy resource consumption E of square metre single full version printing_d:

$E_d=\frac{E_D+E_p}{VB\mathrm{\Δ}t\mathrm{\θ}}$

Wherein, needed for θ is leaflet, in forme, areas accounts for the percentage ratio of total printing area.

Printer efficiency measuring method the most according to claim 1, it is characterised in that described printing General power P of machine is the energy meter measured value at printer main switch or the energy meter of printer various piece The summation of measured value.

Printer efficiency measuring method the most according to claim 1, it is characterised in that measure and be dried Air mass flow φ in case₀, pathogenic wind-warm T of air inlet₀Pathogenic wind-warm T with air outlet₁Step farther include:

The cross section of drying baker air inlet and air outlet is divided equally into several regions, in each described district Measure air mass flow and pathogenic wind-warm in territory, and measurement result is averaged.

Printer efficiency measuring method the most according to claim 3, it is characterised in that in each institute All measure 2-3 minute in stating region.