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How To Save Energy On Air - Jet Looms
Sep 27, 2017

  How to save energy on air - jet looms

  Shuttleless looms are mainly shuttle loom, water jet looms, air-jet looms, rapier looms. Among them, the unit shuttle cloth machine energy consumption (to weave per square meter cloth calculation) the lowest, followed by water jet looms, jet and rapier loom the highest. Enterprises to buy which loom can not only energy consumption as the main indicator of high and low, but the textile machinery plant in the introduction of new machines must pay attention to energy-saving technology.

  The energy consumption of air-jet looms is high, mainly in the energy consumption of the nozzles. The air-jet loom manufacturing enterprises have long been on the nozzle of the auxiliary nozzle were studied, using a single hole, porous, inverted cone hole and other shapes, many have been applied in practice, a variety of aperture shape of the auxiliary nozzle have their own advantages. Various innovations in the nozzles (including the main and auxiliary nozzles) and the trachea not only save energy but also improve the weft insertion quality.

  With the electronic technology is widely used in the monitoring and monitoring of looms, enterprises have introduced new technologies and new measures of energy saving, such as air jet loom auxiliary nozzle solenoid valve application from the past 4 to 6 auxiliary nozzle configuration 1 electromagnetic Valve to 2 auxiliary nozzle configuration 1 solenoid valve, controlled by the electronic control box solenoid valve order switch, in order to achieve the purpose of air jet thrust. According to the introduction of this new technology alone can save air consumption by 10% to 15%. In the case of an air-jet loom of 190 cm reed, an air-jet loom is 0.5 to 0.6 m3 / min, 48 air-jet looms are equipped with an air compressor of nearly 40 m3 / min, and one 40 m3 / min Compressed air machine to configure a set of tens of kilowatts of the motor. General 190cm air-jet looms have 24 to 26 auxiliary nozzles, in the weft insertion channel each auxiliary nozzle spacing 70 ~ 80mm, because 4 to 6 auxiliary nozzle configuration 1 solenoid valve, that is 4 to 6 auxiliary nozzle switch Time is the same, so can not save gas consumption. Now there are two auxiliary nozzles equipped with a solenoid valve, only two auxiliary nozzle switching time is the same, which in order to save gas consumption to create the conditions. With the increase in the speed of the loom and the decrease in the number of auxiliary nozzles controlled by each solenoid valve, it is required that the auxiliary nozzle speed is accelerated and there is no high performance and high speed solenoid valve.

  Loom in addition to air weft energy consumption, the other institutions of energy consumption is also great, the most important is the beating mechanism. There are two kinds of beating mechanism: crank connecting rod mechanism and conjugate cam beating, the two institutions have their own advantages and disadvantages. 20 years of production practice comparison shows that: these two beating institutions are in line with production requirements. For individual heavy-duty fabric, the use of conjugate cam beating mechanism has its outstanding advantages, while the crank connecting rod mechanism is slightly lacking in this respect. For most products, the two organizations are exactly the same. From the quantitative point of view, air-jet looms use the crank link mechanism of the absolute majority. The rapier loom evolved from the crank connecting rod mechanism to the conjugate wheel beating mechanism. The shuttle loom is not used conjugate cam beating mechanism can not.

  Followed by the opening mechanism. Regardless of the cam opening or multi-arm openings are large energy consumption of the body. But the same is the cam opening, the negative cam is slightly lower than the positive cam energy consumption. Two kinds of cam openings have their own advantages and disadvantages, the user should choose according to their own circumstances. Multi-arm opening energy consumption than the cam opening.

  Speaking of air-jet looms can not fail to mention the air compressor. Now the domestic enterprises to use the air compressor is not ideal, the compressor efficiency is low, and because the vibration and noise are relatively large, the compressor should be installed in a certain distance from the jet loom workshop, so the pipeline energy loss. Air-jet looms use the plant are using small-capacity air compressor, such as the use of 48 air-jet looms only four small-capacity air compressor, three often open a spare, and the backup is not always disabled But four devices in turn turn the boot. It is installed not far from the loom, and some even in the production workshop. From this point of view energy consumption is certainly lower than ours

  Air compressor is divided into absolute oil-free and oil-filtered indirect oil-free two. Oil-based air compressor from the operating efficiency, life expectancy, energy consumption is better than absolute oil. 20 years before the enterprises are using absolutely oil-free air compressor. In recent years, many users have to use oil-based air compressor, its price is cheaper than the oil-free air compressor a lot cheaper. And the oil of the air compressor through continuous improvement, first of all to change the varieties of lubricants, the use of oil can be cleaned in addition to oil, if the filter failure, oil splash on the finished fabric, you can in the post-processing Printing and dyeing finishing process to eliminate. There are oil air compressor also has shortcomings, and its lubricating oil has a certain life, to be replaced regularly. At the same time filter oil network should also be cleaned or replaced regularly.

  In recent years the air compressor factory also introduced the electronic control of variable frequency motor, CVT air compressor, according to the introduction can save about 10% of energy. It is able to save energy because it can be based on the size of the amount of air consumption to adjust the speed of the motor. Take the 96 air-jet looms as an example, under normal circumstances the air supply is greater than the amount of gas consumption, because 96 looms always have several downtime, although there is a gas cylinder can adjust the gas, but if the loom stop more , The air bag air pressure is full of air compressor will stop, and centrifugal air compressor after stopping for 30 minutes to re-boot, do not allow the time to stop, when the open. So are taken to stop the way empty, so that part of the energy wasted. This energy-saving air compressor can solve the problem of venting, thus saving energy.