How to save energy on air jet loom

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Time of issue:2020-06-16
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(Summary description)Shuttleless looms mainly include projectile looms, water jet looms, air jet looms and rapier looms. Among them, the unit energy consumption of projectile loom (calculated by weaving per square meter) is low, followed by water jet loom, air jet loom and rapier loom. The energy consumption is not the main index to choose the loom, but the textile machinery factory should pay attention to energy-saving technology when launching new loom.
The reason why the energy consumption of air-jet loom is high is mainly in the energy consumption of nozzle. Many air-jet loom manufacturers have studied the nozzle hole of auxiliary nozzle for a long time. They adopt the shape of single hole, multi hole, inverted cone hole and so on. Many of them have been applied in practice. The auxiliary nozzle with various aperture shapes has their own advantages. Various innovations in nozzles (including main and auxiliary nozzles) and gas pipes can not only save energy, but also improve weft insertion quality.
With the wide application of electronic technology in the monitoring and monitoring of looms, various enterprises have successively introduced new energy-saving technologies and measures, such as the application of auxiliary nozzle solenoid valve of air-jet looms, from the past 4-6 auxiliary nozzles equipped with one solenoid valve to 2 auxiliary nozzles equipped with one solenoid valve, and the orderly switch of the solenoid valve is controlled by the electric control box to achieve the purpose of air flow relay injection. It is reported that this new technology alone can save 10% - 15% of air consumption. Taking the air-jet loom with 190cm reed as an example, the air consumption of weft insertion of one air-jet loom is 0.5-0.6m3/min, 48 air-jet looms need to be equipped with nearly 40m3 / min air compressor, and one 40m3 / min air compressor needs to be equipped with a motor of dozens of kilowatts. Generally, there are 24-26 auxiliary nozzles in 190cm air-jet loom, and the distance between each auxiliary nozzle in the weft insertion channel is 70-80mm. Because 4-6 auxiliary nozzles are equipped with one solenoid valve, that is, the opening and closing time of 4-6 auxiliary nozzles is the same, so it can not save gas consumption. Now some air-jet looms have two auxiliary nozzles equipped with one solenoid valve, and only two auxiliary nozzles have the same switching time, which creates conditions for saving air consumption. With the increase of loom speed and the decrease of the number of auxiliary sprays controlled by each solenoid valve, the speed of auxiliary nozzle is required to be accelerated. Without high-performance and high-speed solenoid valve, this technology can not be popularized.
In addition to the energy consumption of air weft insertion, the energy consumption of other mechanisms is also very large, mainly the beating mechanism. There are two kinds of beating up mechanisms: crank linkage mechanism and conjugate cam beating up, each of which has its own advantages and disadvantages. The comparison of production practice for more than 20 years shows that the two beating mechanisms meet the production requirements. For some heavy and wide fabrics, the conjugate cam beating up mechanism has its outstanding advantages, while the crank link beating up mechanism is slightly deficient in this respect. For most products, the two mechanisms are exactly the same. In terms of quantity, the air-jet loom uses the crank link mechanism to account for the absolute majority. Rapier loom developed from crank link beating mechanism to conjugate wheel beating mechanism. However, it is not necessary to use conjugate cam beating up mechanism for projectile loom.
Secondly, the opening mechanism. Both the cam opening and the multi arm opening are energy consuming mechanisms. However, the energy consumption of the negative cam is slightly lower than that of the positive cam. The two kinds of cam openings have their own advantages and disadvantages. Users should choose their own according to the specific situation. The energy consumption of Dobby opening is larger than that of cam opening. Toyota company and Tsuda Ju company of Japan have successively launched an electronic dobby with one lifting lever and one servo motor. They have cancelled electromagnets, cams, etc. the energy consumption is much lower than the existing electronic dobby, and the adjustment is also very convenient.
When it comes to air-jet looms, we can't help mentioning air compressors. At present, the air compressor used by domestic enterprises is not very ideal, the efficiency of the compressor is low, and because of the large vibration and noise, the compressor should be installed at a certain distance from the air-jet loom workshop, so the pipeline energy consumption is very large. Japan's air-jet loom manufacturers all use small capacity air compressors. If there are 48 air-jet loom manufacturers, only four small capacity air compressors are needed, three of which a

How to save energy on air jet loom

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How to save energy on air jet loom

(Summary description)Shuttleless looms mainly include projectile looms, water jet looms, air jet looms and rapier looms. Among them, the unit energy consumption of projectile loom (calculated by weaving per square meter) is low, followed by water jet loom, air jet loom and rapier loom. The energy consumption is not the main index to choose the loom, but the textile machinery factory should pay attention to energy-saving technology when launching new loom.
The reason why the energy consumption of air-jet loom is high is mainly in the energy consumption of nozzle. Many air-jet loom manufacturers have studied the nozzle hole of auxiliary nozzle for a long time. They adopt the shape of single hole, multi hole, inverted cone hole and so on. Many of them have been applied in practice. The auxiliary nozzle with various aperture shapes has their own advantages. Various innovations in nozzles (including main and auxiliary nozzles) and gas pipes can not only save energy, but also improve weft insertion quality.
With the wide application of electronic technology in the monitoring and monitoring of looms, various enterprises have successively introduced new energy-saving technologies and measures, such as the application of auxiliary nozzle solenoid valve of air-jet looms, from the past 4-6 auxiliary nozzles equipped with one solenoid valve to 2 auxiliary nozzles equipped with one solenoid valve, and the orderly switch of the solenoid valve is controlled by the electric control box to achieve the purpose of air flow relay injection. It is reported that this new technology alone can save 10% - 15% of air consumption. Taking the air-jet loom with 190cm reed as an example, the air consumption of weft insertion of one air-jet loom is 0.5-0.6m3/min, 48 air-jet looms need to be equipped with nearly 40m3 / min air compressor, and one 40m3 / min air compressor needs to be equipped with a motor of dozens of kilowatts. Generally, there are 24-26 auxiliary nozzles in 190cm air-jet loom, and the distance between each auxiliary nozzle in the weft insertion channel is 70-80mm. Because 4-6 auxiliary nozzles are equipped with one solenoid valve, that is, the opening and closing time of 4-6 auxiliary nozzles is the same, so it can not save gas consumption. Now some air-jet looms have two auxiliary nozzles equipped with one solenoid valve, and only two auxiliary nozzles have the same switching time, which creates conditions for saving air consumption. With the increase of loom speed and the decrease of the number of auxiliary sprays controlled by each solenoid valve, the speed of auxiliary nozzle is required to be accelerated. Without high-performance and high-speed solenoid valve, this technology can not be popularized.
In addition to the energy consumption of air weft insertion, the energy consumption of other mechanisms is also very large, mainly the beating mechanism. There are two kinds of beating up mechanisms: crank linkage mechanism and conjugate cam beating up, each of which has its own advantages and disadvantages. The comparison of production practice for more than 20 years shows that the two beating mechanisms meet the production requirements. For some heavy and wide fabrics, the conjugate cam beating up mechanism has its outstanding advantages, while the crank link beating up mechanism is slightly deficient in this respect. For most products, the two mechanisms are exactly the same. In terms of quantity, the air-jet loom uses the crank link mechanism to account for the absolute majority. Rapier loom developed from crank link beating mechanism to conjugate wheel beating mechanism. However, it is not necessary to use conjugate cam beating up mechanism for projectile loom.
Secondly, the opening mechanism. Both the cam opening and the multi arm opening are energy consuming mechanisms. However, the energy consumption of the negative cam is slightly lower than that of the positive cam. The two kinds of cam openings have their own advantages and disadvantages. Users should choose their own according to the specific situation. The energy consumption of Dobby opening is larger than that of cam opening. Toyota company and Tsuda Ju company of Japan have successively launched an electronic dobby with one lifting lever and one servo motor. They have cancelled electromagnets, cams, etc. the energy consumption is much lower than the existing electronic dobby, and the adjustment is also very convenient.
When it comes to air-jet looms, we can't help mentioning air compressors. At present, the air compressor used by domestic enterprises is not very ideal, the efficiency of the compressor is low, and because of the large vibration and noise, the compressor should be installed at a certain distance from the air-jet loom workshop, so the pipeline energy consumption is very large. Japan's air-jet loom manufacturers all use small capacity air compressors. If there are 48 air-jet loom manufacturers, only four small capacity air compressors are needed, three of which a

Categories:News
Author:
Origin:
Time of issue:2020-06-16
Views:0

Shuttleless looms mainly include projectile looms, water jet looms, air jet looms and rapier looms. Among them, the unit energy consumption of projectile loom (calculated by weaving per square meter) is low, followed by water jet loom, air jet loom and rapier loom. The energy consumption is not the main index to choose the loom, but the textile machinery factory should pay attention to energy-saving technology when launching new loom.

The reason why the energy consumption of air-jet loom is high is mainly in the energy consumption of nozzle. Many air-jet loom manufacturers have studied the nozzle hole of auxiliary nozzle for a long time. They adopt the shape of single hole, multi hole, inverted cone hole and so on. Many of them have been applied in practice. The auxiliary nozzle with various aperture shapes has their own advantages. Various innovations in nozzles (including main and auxiliary nozzles) and gas pipes can not only save energy, but also improve weft insertion quality.

With the wide application of electronic technology in the monitoring and monitoring of looms, various enterprises have successively introduced new energy-saving technologies and measures, such as the application of auxiliary nozzle solenoid valve of air-jet looms, from the past 4-6 auxiliary nozzles equipped with one solenoid valve to 2 auxiliary nozzles equipped with one solenoid valve, and the orderly switch of the solenoid valve is controlled by the electric control box to achieve the purpose of air flow relay injection. It is reported that this new technology alone can save 10% - 15% of air consumption. Taking the air-jet loom with 190cm reed as an example, the air consumption of weft insertion of one air-jet loom is 0.5-0.6m3/min, 48 air-jet looms need to be equipped with nearly 40m3 / min air compressor, and one 40m3 / min air compressor needs to be equipped with a motor of dozens of kilowatts. Generally, there are 24-26 auxiliary nozzles in 190cm air-jet loom, and the distance between each auxiliary nozzle in the weft insertion channel is 70-80mm. Because 4-6 auxiliary nozzles are equipped with one solenoid valve, that is, the opening and closing time of 4-6 auxiliary nozzles is the same, so it can not save gas consumption. Now some air-jet looms have two auxiliary nozzles equipped with one solenoid valve, and only two auxiliary nozzles have the same switching time, which creates conditions for saving air consumption. With the increase of loom speed and the decrease of the number of auxiliary sprays controlled by each solenoid valve, the speed of auxiliary nozzle is required to be accelerated. Without high-performance and high-speed solenoid valve, this technology can not be popularized.

In addition to the energy consumption of air weft insertion, the energy consumption of other mechanisms is also very large, mainly the beating mechanism. There are two kinds of beating up mechanisms: crank linkage mechanism and conjugate cam beating up, each of which has its own advantages and disadvantages. The comparison of production practice for more than 20 years shows that the two beating mechanisms meet the production requirements. For some heavy and wide fabrics, the conjugate cam beating up mechanism has its outstanding advantages, while the crank link beating up mechanism is slightly deficient in this respect. For most products, the two mechanisms are exactly the same. In terms of quantity, the air-jet loom uses the crank link mechanism to account for the absolute majority. Rapier loom developed from crank link beating mechanism to conjugate wheel beating mechanism. However, it is not necessary to use conjugate cam beating up mechanism for projectile loom.

Secondly, the opening mechanism. Both the cam opening and the multi arm opening are energy consuming mechanisms. However, the energy consumption of the negative cam is slightly lower than that of the positive cam. The two kinds of cam openings have their own advantages and disadvantages. Users should choose their own according to the specific situation. The energy consumption of Dobby opening is larger than that of cam opening. Toyota company and Tsuda Ju company of Japan have successively launched an electronic dobby with one lifting lever and one servo motor. They have cancelled electromagnets, cams, etc. the energy consumption is much lower than the existing electronic dobby, and the adjustment is also very convenient.

When it comes to air-jet looms, we can't help mentioning air compressors. At present, the air compressor used by domestic enterprises is not very ideal, the efficiency of the compressor is low, and because of the large vibration and noise, the compressor should be installed at a certain distance from the air-jet loom workshop, so the pipeline energy consumption is very large. Japan's air-jet loom manufacturers all use small capacity air compressors. If there are 48 air-jet loom manufacturers, only four small capacity air compressors are needed, three of which are normally open and one of which is standby. The standby is not always out of service, but four of which are turned on in turn. It is installed not far from the loom, some even in the production workshop. From this point of view, the energy consumption must be lower than ours.

Air compressor is divided into absolute oil-free and indirect oil-free after oil filtration. The operation efficiency, life and energy consumption of air compressor with oil are better than that without oil absolutely. Twenty years ago, enterprises were using absolute oil-free air compressor. In recent years, many users have changed to oil compressor, and its price is much cheaper than absolute oil-free air compressor. After continuous exploration and improvement, the air compressor with oil first changed the type of lubricating oil and used lubricating oil which can clean the oil stains. In case of failure of the filter screen, oil splashing on the finished cloth can be eliminated in the process of post-processing, printing and finishing. The air compressor with oil also has shortcomings. Its lubricating oil has a certain service life and should be replaced regularly. At the same time, the oil strainer should be cleaned or replaced regularly.

In recent years, various air compressor factories have also introduced electronic controlled variable frequency motor and stepless variable speed air compressor, which can save about 10% energy. The reason why it can save energy is that the speed of the motor can be adjusted according to the gas consumption. Take 96 air-jet looms as an example. Generally, the air supply is greater than the air consumption, because 96 looms always have several stops. Although there is an air reservoir to regulate the air consumption, if the loom stops more than one, the air reservoir will stop when the air compressor is full of air. However, the centrifugal air compressor can not be restarted until 30 minutes after it stops

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