CN209853727U - Device for combining nitrogen and oxygen double protection on UV/EB (ultraviolet/Electron Beam) curing equipment - Google Patents
Device for combining nitrogen and oxygen double protection on UV/EB (ultraviolet/Electron Beam) curing equipment Download PDFInfo
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- CN209853727U CN209853727U CN201920230175.XU CN201920230175U CN209853727U CN 209853727 U CN209853727 U CN 209853727U CN 201920230175 U CN201920230175 U CN 201920230175U CN 209853727 U CN209853727 U CN 209853727U
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Abstract
The utility model provides a device for combining nitrogen and oxygen double protection on UV/EB curing equipment, which comprises an air compressor, a filter, a nitrogen and oxygen separation membrane device and a UV/EB curing device which are connected in sequence; the air compressor is used for compressing air; the filter removes oil, water and solid particles in the compressed air; the purified air passes through the separation membrane at a high permeation rate under the action of the pressure difference of the nitrogen-oxygen separation membrane device to become oxygen-enriched air; the nitrogen with slower permeation rate is enriched on the interception side to become nitrogen-rich gas; carrying out curing treatment on the surface of the sample under the protection of nitrogen-rich gas in a UV/EB curing device; a nitrogen porous gas injection pipe in the UV/EB curing device transmits nitrogen-rich gas to a curing area to ensure an inert gas environment; an oxygen porous gas injection pipe outside the UV/EB curing device releases oxygen-enriched gas to a nitrogen gas outlet and mixes nitrogen-enriched gas to balance the environment of an operation occasion, thereby avoiding the risk of suffocation of operators.
Description
Technical Field
The utility model belongs to the technical field of UV EB curing equipment, concretely relates to combine nitrogen gas oxygen duplicate protection's device on UV EB curing equipment.
Background
Because of the advantages of '5E', the UV/EB curing technology is increasingly applied to the aspects of coatings, printing, photocuring glue, photoresist and the like as an energy-saving and environment-friendly process, and particularly has increasingly attracted wide interest due to special properties in the field of electronic products such as mobile phones and the like. The traditional UV/EB curing is generally carried out in the air, and for free radical curing, the oxygen inhibition effect can seriously affect the curing effect; for cationic curing, moisture also affects the rate of polymerization, etc. Therefore, if the technique of blocking oxygen with nitrogen is used, the reaction of oxygen molecules or water molecules with the photoinitiator in the curing system is suppressed, and the photocrosslinking reaction is more complete. In order to suppress the influence of oxygen, it is also possible to use an excess of photoinitiator and so-called oxygen scavenger or initiating system to eliminate oxygen inhibition and to complete the crosslinking reaction more fully, although the use of an excess of initiator and co-initiator may reduce the quality of the cured product. If water vapor and oxygen are replaced or reduced in the air, the crosslinking reaction will be more complete, thereby improving the quality of the cure, and reducing ozone generation, providing an environment conducive to curing. Meanwhile, the reduction of the dosage of the photoinitiator greatly reduces the shrinkage and wrinkling conditions of the material. EB curing has higher requirements for atmosphere and requires more nitrogen protection. Therefore, providing photocuring under nitrogen protection is an effective way to improve the quality of cured products, and has been reported in some patents, for example, CN206229607U, and studies have shown that when the residual oxygen ratio is less than 5%, the curing results can be significantly improved. Once a lower purity is acceptable, the consumption of nitrogen will be significantly reduced. If the oxygen residual ratio can be adjusted to a certain value, the cost of the lamp and the electron beam consumption for exposure will be significantly reduced.
Currently, in oxygen-barrier inert gas protected UV/EB curing systems, there are two possible methods of providing nitrogen: nitrogen gas is filled in a gas tank, or a nitrogen generating agent is used. In most cases, this is determined by the demand for oxygen ratio. Nitrogen tanks are the most common equipment for economic reasons. The investment of the nitrogen generator must consider the gas production volume per hour, the gas volume consumed per hour, the gas purity (such as the nitrogen purity of 95-99.999%), and the like, the investment and consumption cost of the nitrogen generator is high, and the use of a nitrogen tank needs certain space and cost.
The UV/EB curing technology adopting nitrogen protection for blocking oxygen has the advantages of high production speed, cost saving, quality improvement and ozone reduction. The application of this technology has significant advantages in various UV/EB curing industries. For example, the packaging printing industry (especially food packaging using aluminium foil, paper, cardboard, foil, tinplate), the furniture industry (decorative foils, wood coatings, moulded board, etc.) and the metal coating industry. However, this technique requires intensive asphyxia protection by the staff, especially in larger production lines and production shops. Because the nitrogen protection technology can cause the oxygen content in the closed space to be reduced, the method has potential danger to operators. Of course, the same problem is also encountered with other gases, such as carbon dioxide.
At present, there have been patent reports on the production of medium and small scale (1000 Nm) by hollow fiber membranes3H) and non-high-purity (< 99%) nitrogen, has the advantages of low energy consumption, small occupied space, simple flow, low noise and the like, such as CN207566871U and CN108423644A, but is mainly used for separating non-high-purity nitrogen, and the residual oxygen-enriched gas is not utilized.
SUMMERY OF THE UTILITY MODEL
To the not enough among the prior art, the utility model provides a combine nitrogen gas oxygen duplicate protection's device on UV EB solidification equipment to use in the convenient production, especially oxygen has strengthened the security of using for the protection personnel.
In order to achieve the above purpose, the utility model discloses a solution is:
a device for combining nitrogen and oxygen dual protection on UV/EB curing equipment comprises an air compressor, a filter, a nitrogen and oxygen separation membrane device and a UV/EB curing device which are sequentially connected, wherein a nitrogen porous air injection pipe and an oxygen porous air injection pipe are arranged on the UV/EB curing device.
The air compressor is used for compressing air;
a filter to remove oil, water and solid particles from the compressed air; the input end of the filter is connected to the air compressor through an air pipe;
the nitrogen-oxygen separation membrane device is used for purifying air, and oxygen with a higher permeation rate passes through the separation membrane under the action of pressure difference to form oxygen-enriched gas; the nitrogen with slower permeation rate is enriched on the interception side to become nitrogen-rich gas; the input end of the nitrogen-oxygen separation membrane device is connected with the output end of the filter through an air pipe;
the UV/EB curing device is used for curing the surface of the sample under the protection of the nitrogen-rich gas; the input end of the nitrogen-oxygen separation membrane device is connected with a nitrogen-oxygen separation membrane device through a gas pipe;
a nitrogen gas porous gas injection pipe for transmitting nitrogen-rich gas to the solidification area to ensure an inert gas environment; it is arranged in the UV/EB curing device; and the number of the first and second groups,
the oxygen porous gas injection pipe releases the oxygen-enriched gas to the nitrogen gas outlet and mixes the nitrogen-enriched gas to balance the environment of the operation occasion; it is arranged outside the UV/EB curing device.
Preferably, the filter comprises a dust remover and a dehumidifier connected through an air pipe, the dust remover is connected to the air compressor through the air pipe, and the dehumidifier is connected with the nitrogen-oxygen separation membrane device through the air pipe.
Preferably, a heater is arranged between the dehumidifier and the nitrogen-oxygen separation membrane device, and the filtered air is heated to a certain temperature.
Preferably, the inlet pressure of the nitrogen-oxygen separation membrane device is 0.5-2MPa, the inlet temperature is 5-80 ℃, the purity of the discharged nitrogen is 90-99%, and the outlet flow of the separated nitrogen is more than or equal to 4Nm3And/h, N is the number of modules in the nitrogen-oxygen separation membrane device.
Preferably, the device combined with the nitrogen and oxygen double protection on the UV/EB curing equipment further comprises an oxygen analyzer and a light source or an electron beam device; the oxygen analyzer is arranged on a pipeline of a nitrogen porous gas injection pipe in the UV/EB curing device and is used for detecting the concentration of the nitrogen-rich gas in a certain range, so that the curing effect is ensured; a light source or an electron beam device is installed in the UV/EB curing device for curing the sample, i.e., a light source for UV curing, an electron beam for EB curing.
Due to the adoption of the scheme, the beneficial effects of the utility model are that:
the utility model discloses a method of nitrogen gas oxygen separation membrane device realizes the air purification separation, and nitrogen-rich gas is used for the inert gas protection of UV EB solidification, and oxygen-rich gas is arranged in the oxygen content in the air in balanced production place, finally realizes unanimous with the nitrogen gas oxygen content of normal air. The method does not need gas storage equipment such as a gas tank, nitrogen and oxygen can be used at any time, the price is relatively low, the separated oxygen is simultaneously introduced into a high-concentration nitrogen region through a pipeline, the two gases are mixed into air again, the risk of suffocation of operators is avoided, and the method has wide application potential in the UV curing fields such as green coating, environment-friendly printing, ink-jet printing, energy-saving materials and the like.
In a word, the utility model discloses can play the effect of isolated oxygen when UV EB solidification product surface solidifies, can improve the effect of solidification, convenience simple to use moreover, degree of automation is high, and the cost is lower to occupation space is little. The separated air is directly sprayed into the curing equipment through the exhaust pipe, the air storage tank is not needed for storage, and only the oxygen analyzer is needed to be installed on the air outlet pipeline to ensure proper concentration. Simultaneously, to the condition that waste gas was abandoned to other various nitrogen gas separation's utility model well oxygen, the utility model discloses collect oxygen-enriched gas and let in the operating area in step, the problem that the operation place oxygen content that the excessive nitrogen gas of balance caused is not enough to the risk that operating personnel stifled has been avoided.
Drawings
Fig. 1 is a schematic structural diagram of a device for combining nitrogen and oxygen dual protection on the UV/EB curing apparatus of the present invention.
Reference numerals: 1-air compressor, 2-dust remover, 3-dehumidifier, 4-nitrogen oxygen separation membrane device, 5-UV/EB solidification device, 6-nitrogen gas porous jet pipe, 7-oxygen gas porous jet pipe, 8-first gas pipe, 9-second gas pipe, 10-third gas pipe, 11-oxygen analyzer and 12-light source or electron beam device.
Detailed Description
The utility model provides a device that combines nitrogen gas oxygen duplicate protection on UV EB curing equipment.
As shown in fig. 1, the apparatus for combining the dual protection of nitrogen and oxygen on the UV/EB curing device includes an air compressor 1, a filter, a nitrogen and oxygen separation membrane apparatus 4 and a UV/EB curing apparatus 5, which are connected in sequence, and a nitrogen porous gas injection tube 6 and an oxygen porous gas injection tube 7 are installed on the UV/EB curing apparatus. Wherein, the air compressor 1 is used for compressing air; then, the air compressed by the air compressor 1 passes through a multi-stage filter to remove oil, water and solid particles in the compressed air; the input end of the filter is connected to the air compressor 1 through an air pipe, actually, the filter comprises a dust remover 2 and a dehumidifier 3 connected through a second air pipe 9, the dust remover 2 is connected to the air compressor 1 through a first air pipe 8, and the dehumidifier 3 is connected to the nitrogen-oxygen separation membrane device 4 through a third air pipe 10; the core component of the nitrogen-oxygen separation membrane device 4 is a hollow fiber membrane separator, and because the purified air reaches two sides of a separation membrane in the membrane separator and has a certain pressure difference, under the action of the pressure difference, oxygen with a higher permeation rate preferentially passes through the separation membrane to become oxygen-enriched gas; the nitrogen with slower permeation rate is enriched on the interception side to become nitrogen-rich gas; the input end of the nitrogen-oxygen separation membrane device 4 is connected with the output end of the filter through a third air pipe 10; the input end of a UV/EB curing device 5 is connected with a nitrogen-oxygen separation membrane device 4 through a gas pipe, and the surface of a sample is cured under the protection of nitrogen-rich gas, wherein the UV/EB curing device can be various common newly manufactured or modified devices, the inert gas protection of resin curing is realized by introducing a nitrogen porous gas injection pipe 6, and the anti-suffocation protection of operators is realized by introducing an oxygen porous gas injection pipe 7; furthermore, a nitrogen outlet and an oxygen outlet are arranged on the UV/EB curing device 5, the positions of the nitrogen outlet and the oxygen outlet can be adjusted, the gas output is controlled by the temperature and the pressure of the nitrogen-oxygen separation membrane device 4, wherein the nitrogen outlet is close to a light source of the UV/EB curing device 5, and the oxygen outlet is close to an operator; in practice, a nitrogen gas perforated gas lance 6 is arranged inside the UV/EB curing device 5, delivering nitrogen-rich gas to the curing area to ensure an inert gas environment; and the oxygen porous gas injection pipe 7 is arranged outside the UV/EB curing device 5, the oxygen-enriched gas is released to the nitrogen gas outlet and is mixed with the nitrogen-enriched gas to balance the environment of the operation occasion, namely, the oxygen-enriched gas separated out by the nitrogen-oxygen separation membrane device 4 passes through the oxygen porous gas injection pipe 7 and is mixed with the separated nitrogen-enriched gas again to form air with normal content in the operation occasion, thereby not influencing operators.
In a specific embodiment of the present invention, a heater is disposed between the dehumidifier 3 and the nitrogen-oxygen separation membrane device 4, and heats the filtered air to a certain temperature.
In a specific embodiment of the present invention, the inlet pressure of the nitrogen-oxygen separation membrane device 4 is 0.5-2MPa, the inlet temperature is 5-80 ℃, the purity of the discharged nitrogen is 90-99%, and the outlet flow rate of the separated nitrogen is greater than or equal to 4Nm3N is the number of modules in the nitrogen-oxygen separation membrane unit 4.
In a specific embodiment of the present invention, the device for combining the nitrogen and oxygen dual protection on the UV/EB curing apparatus further comprises an oxygen analyzer 11 and a light source or electron beam device 12; the oxygen analyzer 11 is arranged on a pipeline of the nitrogen porous gas injection pipe 6 in the UV/EB curing device and is used for detecting the concentration of the nitrogen-rich gas in a certain range so as to ensure that the photocuring or EB curing effect can be improved, namely, a nitrogen-rich gas outlet pipe in the nitrogen-oxygen separation membrane device 4 is connected with the oxygen analyzer 11 so as to ensure that the nitrogen has proper concentration, thereby ensuring the curing effect; a light source or electron beam device 12 is installed in the UV/EB curing device 5, and a nitrogen gas porous gas injection pipe 6 is positioned near the UV curing light source or EB curing electron beam, so as to be used for curing the sample; the oxygen gas perforated gas lance 7 is located near the operator or at a location where a large amount of nitrogen gas flows out to balance the gas content of both in the operating space.
The utility model discloses a theory of operation does: the air compressed by the air compressor passes through the multistage filter to remove oil, water, solid particles and the like in the air, the filtered air is heated to a certain temperature and then reaches the nitrogen-oxygen separation membrane device taking the hollow fiber membrane as a core component, and the air reaching the membrane separator has a certain pressure difference on two sides of the nitrogen-oxygen separation membrane group due to the compression of the compressor. The different gases have different dissolution rates and diffusion coefficients in the membrane separator, and under the action of pressure difference, oxygen with higher permeation rate preferentially passes through the membrane to become oxygen-enriched gas; while the nitrogen with slower permeation rate is enriched on the retentate side to become nitrogen rich gas. Nitrogen gas multi-hole gas injection tubes release nitrogen-rich gas in the curing zone, such as the illumination zone in UV curing and the electron beam zone in EB curing, thereby achieving oxygen resistance or water vapor isolation of UV/EB curing by providing an inert atmosphere; the oxygen porous gas injection pipe releases oxygen-enriched gas in a high-concentration nitrogen outlet area, such as a nitrogen outlet or an operator area, so that nitrogen in a workshop is balanced, the environment is kept at normal oxygen content, the safety of personnel is protected, the danger that the personnel are suffocated due to the nitrogen is overcome, and a cover with a certain specification is installed on the UV/EB curing device to ensure that the nitrogen is prevented from being diffused quickly.
In a word, the basic flow of the combined nitrogen and oxygen dual-protection device on the UV/EB curing equipment of the utility model is as follows: the utility model discloses can let in sufficient flow's rich nitrogen gas when UV EB solidification equipment carries out surface cure to the sample, play the effect of isolating oxygen and steam, can improve curing effect, the oxygen-enriched gas can protect operating personnel simultaneously. The air is effectively separated into nitrogen-rich gas and oxygen-rich gas and then is respectively sprayed into a solidification area and a personnel area, wherein an oxygen analyzer is arranged on a nitrogen-rich gas nozzle, so that the sufficient nitrogen concentration is controlled to ensure the solidification effect. The position of nitrogen gas export and the position of oxygen export can be controlled in a flexible way, carry out the adjustment of stringing according to the production line of difference or different curing equipment, and the purity of gas output and gas is adjusted according to actual demand simultaneously, finally uses the actual effect of solidification as the standard.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. It will be readily apparent to those skilled in the art that various modifications to these embodiments and the generic principles defined herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above-described embodiments. Those skilled in the art should appreciate that, in view of the principles of the present invention, modifications and variations may be made without departing from the scope of the invention.
Claims (5)
1. The utility model provides a combine nitrogen gas oxygen duplicate protection's device on UV/EB curing equipment which characterized in that: the device comprises an air compressor (1), a filter, a nitrogen-oxygen separation membrane device (4) and a UV/EB curing device (5) which are connected in sequence, wherein a nitrogen porous gas injection pipe (6) and an oxygen porous gas injection pipe (7) are arranged on the UV/EB curing device (5);
an air compressor (1) for compressing air;
a filter to remove oil, water and solid particles from the compressed air; the input end of the filter is connected to the air compressor (1) through an air pipe;
the nitrogen-oxygen separation membrane device (4) is used for enabling the purified air to pass through the separation membrane at a high permeation rate under the action of pressure difference to become oxygen-enriched air; the nitrogen with slower permeation rate is enriched on the interception side to become nitrogen-rich gas; the input end of the nitrogen-oxygen separation membrane device (4) is connected with the output end of the filter through a gas pipe;
the UV/EB curing device (5) is used for carrying out curing treatment on the surface of the sample under the protection of nitrogen-rich gas; the input end of the nitrogen-oxygen separation membrane device is connected with the nitrogen-oxygen separation membrane device (4) through a gas pipe;
a nitrogen gas perforated gas lance (6) for delivering nitrogen-rich gas to the solidification zone to ensure an inert gas environment; it is arranged in the UV/EB curing device (5); and the number of the first and second groups,
an oxygen porous gas injection pipe (7) for releasing the oxygen-rich gas to the nitrogen gas outlet and mixing the nitrogen-rich gas to balance the environment of the operation occasion; it is arranged outside the UV/EB curing device (5).
2. The device for combining nitrogen and oxygen double protection on the UV/EB curing equipment according to the claim 1, is characterized in that: the filter includes dust shaker (2) and dehumidifier (3) through the trachea connection, dust shaker (2) are connected to through the trachea air compressor machine (1), dehumidifier (3) are connected through the trachea nitrogen gas oxygen separation membrane device (4).
3. The device for combining nitrogen and oxygen double protection on the UV/EB curing equipment according to the claim 2, is characterized in that: a heater is arranged between the dehumidifier (3) and the nitrogen-oxygen separation membrane device (4), and the filtered air is heated to a certain temperature.
4. The device for combining nitrogen and oxygen double protection on the UV/EB curing equipment according to the claim 1, is characterized in that: the inlet pressure of the nitrogen-oxygen separation membrane device (4) is 0.5-2MPa, the inlet temperature is 5-80 ℃, the purity of the discharged nitrogen is 90-99%, and the outlet flow of the separated nitrogen is more than or equal to 4Nm3N is the number of modules in the nitrogen-oxygen separation membrane unit (4).
5. The device for combining nitrogen and oxygen double protection on the UV/EB curing equipment according to the claim 1, is characterized in that: it also comprises an oxygen analyzer (11) and a light source or electron beam device (12);
the oxygen analyzer (11) is arranged on a pipeline of the nitrogen porous gas injection pipe (6) in the UV/EB curing device (5) and is used for detecting the concentration of nitrogen-rich gas in a certain range so as to ensure the curing effect;
the light source or electron beam device (12) is mounted within the UV/EB curing device (5) for curing the sample.
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| CN201920230175.XU CN209853727U (en) | 2019-02-21 | 2019-02-21 | Device for combining nitrogen and oxygen double protection on UV/EB (ultraviolet/Electron Beam) curing equipment |
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| CN201920230175.XU CN209853727U (en) | 2019-02-21 | 2019-02-21 | Device for combining nitrogen and oxygen double protection on UV/EB (ultraviolet/Electron Beam) curing equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114132066A (en) * | 2021-12-09 | 2022-03-04 | 常州华威新材料有限公司 | EB wire drawing film device and using method thereof |
| CN117863747A (en) * | 2024-01-17 | 2024-04-12 | 广州市普理司科技有限公司 | Shallow ink drying process and device |
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- 2019-02-21 CN CN201920230175.XU patent/CN209853727U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114132066A (en) * | 2021-12-09 | 2022-03-04 | 常州华威新材料有限公司 | EB wire drawing film device and using method thereof |
| CN114132066B (en) * | 2021-12-09 | 2023-10-03 | 常州华威新材料有限公司 | EB wire drawing film device and application method thereof |
| CN117863747A (en) * | 2024-01-17 | 2024-04-12 | 广州市普理司科技有限公司 | Shallow ink drying process and device |
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