CN101986077B - Pilot line thermal imidization furnace - Google Patents
Pilot line thermal imidization furnace Download PDFInfo
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- CN101986077B CN101986077B CN2010102545809A CN201010254580A CN101986077B CN 101986077 B CN101986077 B CN 101986077B CN 2010102545809 A CN2010102545809 A CN 2010102545809A CN 201010254580 A CN201010254580 A CN 201010254580A CN 101986077 B CN101986077 B CN 101986077B
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Abstract
The invention discloses a pilot line thermal imidization furnace. The furnace comprises a yarn walking cavity and a plurality of thermal treatment cavities and is characterized in that: fiber yarns pass through the yarn walking cavity and the plurality of thermal treatment cavities respectively; both sides of each thermal treatment cavity are provided with yarn rolling wheels respectively; the inner wall of each thermal treatment cavity is an internal hearth which is supported by a support beam; the inner side of the inner hearth is provided with a vacuum molding heating ring plate; the middle part of each thermal treatment cavity is provided with an air inlet; and the two ends of each thermal treatment cavity are air outlets. In the pilot line thermal imidization furnace provided by the invention, temperature is controlled by an inlet single-loop intelligent temperature controller; the furnace has the characteristics of high temperature control accuracy, high temperature stability and the like; and the equipment has relatively low overall energy consumption and is attractive and neat.
Description
Technical field
The present invention relates to the hot field of filament, specifically belong to pilot scale line hot imidization stove.
Background technology
Pilot scale line hot imidization A stove specialized designs is applied to the polyimide fiber material in the usefulness of heat-treating below 400 ℃, and the kiln design takes into full account and understand preparation technology's requirement of polyimide fiber material, its emphasis specific (special) requirements of As soon as possible Promising Policy.Preparation technology according to material requires independent design, adopts Far-infrared Heating respectively, and far infrared combines the heating of auxiliary circulation wind, internal furnace structure.But the present various processing performances of pilot scale line hot imidization A stove can't satisfy the requirement of polyimide fiber material hot treatment.
Summary of the invention
The purpose of this invention is to provide a kind of pilot scale line hot imidization stove, the control of import single loop intelligent temperature controller is adopted in temperature control, has characteristics such as temperature-controlled precision, temperature stability height, and the whole energy consumption of equipment is lower, aesthetic in appearance, clean and tidy.
Technical scheme of the present invention is following:
Pilot scale line hot imidization stove includes wire chamber, several hot processing chambers, and filament passes through wire chamber, several hot processing chambers respectively; The both sides of hot processing chamber are respectively arranged with cylindrical die roll; Described hot processing chamber inwall is an internal furnace, and internal furnace is fixed by brace summer, and vacuum forming heating ring flat-plate is equipped with in the internal furnace inboard; The hot processing chamber middle part is provided with air inlet, and the two ends of hot processing chamber are air outlet.
Be provided with temperature controller in the described hot processing chamber.
Described hot processing chamber is five and puts arrangement.
Thermal technology's structure of pilot scale line hot imidization stove of the present invention is made up of 5 hot processing chambers and wire chamber, and wherein each hot processing chamber is divided into 2 sections; All select light fibre material heat-insulation and heat-preservation for use; Fibre vacuum forming heating ring flat-plate heats on four sides, gathers light fireproof construction brick as brace summer, and the chunk formula constitutes the main body of thermal technology's structure; For guaranteeing the uniformity of fire box temperature; Warm area not only adopts independent control, and we adopt non-uniform Distribution on the layout of heating wire, adopts the auxiliary circulation supply air system simultaneously.
Internal furnace does not adopt heat-resistant oxidized stainless steel to be welded into the square pipe, takes anti-deformation to handle, and is yielding under the high temperature, fall slag.Be internal furnace convenient for cleaning, indirect offered four groups of detachable cleaning doors.
Compared with present technology, beneficial effect of the present invention is following:
1, accordance is strong--and make much of user's process requirements, confirm furnace type structure during design targetedly; Aspect the material selection, accomplish to select the high-quality supplier, after guaranteeing that equipment is paid, the complete machine performance satisfies the use of consumer products Technology for Heating Processing as much as possible.
2, efficient is high, cost is reasonable--reasonably selection, and the calculations incorporated rich experience of science, equipment installation energy consumption and actual demand energy consumption are very approaching, greatly reduce user's later stage use cost.
3, temperature accurately, stable,--the unique control mode, reasonably power distributes, accuracy, the stability of temperature have reached optimum state, thereby have improved the heat treated quality of consumer products greatly.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a temperature control system block diagram of the present invention.
Fig. 3 is the oscillogram of traditional single cycle zero trigger mode in load.
Fig. 4 is the oscillogram of cycle zero cross fired control mode in load.
The specific embodiment
Referring to accompanying drawing, pilot scale line hot imidization stove includes wire chamber 1, five hot processing chambers 2; Filament 3 passes through wire chamber, five hot processing chambers respectively, and the both sides of hot processing chamber are respectively arranged with cylindrical die roll 4, and hot processing chamber 2 inwalls are internal furnace 5; Internal furnace 5 is fixing by brace summer 6, and vacuum forming heating ring flat-plate 7 is equipped with in internal furnace 5 inboards, and the hot processing chamber middle part is provided with air inlet 8; The two ends of hot processing chamber are air outlet 9, are provided with temperature controller in the hot processing chamber.Mainly contain thermal technology's structure, auxiliary circulation supply air system, body of heater mechanical framework structure, measurement and control of temperature system system four most of compositions.Pilot scale line hot imidization stove is made up of five hot processing chambers and wire chamber, and wherein each hot processing chamber is divided into 2 sections; All select light fibre material heat-insulation and heat-preservation for use, fibre vacuum forming plate heats on four sides, gathers light fireproof construction brick as brace summer.The chunk formula constitutes the main body of thermal technology's structure, and the independent heat treatment chamber is seen shown in Figure 4.For guaranteeing the uniformity of fire box temperature, warm area not only adopts independent control, and we adopt non-uniform Distribution on the layout of heating wire, adopts the auxiliary circulation supply air system simultaneously.
Internal furnace does not adopt heat-resistant oxidized stainless steel to be welded into the square pipe, takes anti-deformation to handle, and is yielding under the high temperature, fall slag.Be internal furnace convenient for cleaning, indirect offered four groups of detachable cleaning doors.
The important technological parameters of pilot scale line hot imidization stove is following:
The special-purpose stove of unit type: RYA (D)-800 hot imidization
Maximum temperature: 430 ℃
Temperature commonly used: room temperature～380 ℃
Fire door size: 800 * 30 * 4500mm (W * H * L)
The internal furnace material: internal furnace adopts the SUS321 material
Wire chamber quantity: 1; Air wire passage
Hot processing chamber quantity: 5; 275 ℃, 310 ℃, 350 ℃, 380 ℃, 380 ℃ of corresponding temperatures
Measurement and control of temperature is counted: each hot processing chamber 1 temperature controlling point, 1 point for measuring temperature amount to 10
Control accuracy: ± 1 ℃, adopt the control of import intelligence temperature controller, pid parameter is from adjusting disconnected idol, overtemperature alarm, power-off protection.
Temperature homogeneity :≤± 5 ℃
Heating element heater: the fibre heating plate combines the hot air circulation heating, and every hot processing chamber heats on four sides, independent air-supply.
Circulation wind speed :≤0.5m/s
The fastest heating-up time :≤45min (380 ℃)
Safeguard protection: alarm and protection functions such as overtemperature, disconnected idol and emergency button, overcurrent protection.
Maximum installed power: about 200KW
Empty stove insulation power :≤about 70KW
Kiln outward appearance: adopt SUS304 bushing (§ 1.2)
Body of heater surface temperature rise :≤45 ℃
Profile reference dimension: 1450mm * 4000 * 5000 (W * H * L)
Temperature control system:
The temperature control system of pilot scale line hot imidization stove; Form by individual 5 single-point control modules; Each single-point master instrument band communication interface (RS485) can make things convenient for monitoring system integrated communication from now on, and classical close loop negative feedback control system control is adopted in the control of single-point temperature.
Temperature control instrument is selected Japanese import single-point temperature controller for use; It has P, I, D parameter self-tuning and artificial revision function; Have overtemperature simultaneously, owe temperature, power alarm defencive function such as disconnected idol; In case any warning generation system can cut off electrical source of power immediately, product burning when preventing that temperature control system lost efficacy.Executive component for traditional A.C. contactor control, is realized soft contact control with import solid-state relay technology generation, and temperature control is accurate, reliable, long service life.Its control mode combines me to adopt the cycle zero trigger mode in the company's practical experience in the past few years simultaneously; Its principle is that the output time duty cycle signals with instrument changes into cycle; Making the break-make of load current is that basic time unit evenly distributes by a sinusoidal cycle; Adopt this control mode to relax the impact of load greatly, improved, improved the control accuracy of system because of P, I, the saturated over control that causes of D integration.Overcome voltage regulating mode simultaneously and cause power factor low, problems such as electric network pollution; Be output as example with dutycycle 50%, list cycle zero cross fired control mode and the oscillogram of traditional single cycle zero trigger mode in load seen accompanying drawing Fig. 3, Fig. 4.
Can find out that from Fig. 4 cycle zero cross fired control mode load voltage waveform is the sine wave that breaks off at interval.When many group heating warm areas move simultaneously; Because the randomness and the additivity of load current; Cause total output load current relative equilibrium, thereby solved the ammeter problem of having an injection, the utilization rate that has improved power-supply device with avoid increase-volume; Simultaneously also relax load shock greatly, improved the control accuracy of system.
Temperature element adopts K calibration thermocouple.Independent switch board, all controls all are positioned on the same panel, and are easy to operate, and are furnished with Chinese mark.
The equipment work environment of pilot scale line hot imidization stove:
1, power supply configuration; 420KVA; 380V, 50HZ, three-phase five-wire mode:
2, facility environment atmospheric pressure: 86.0～106.0Kpa
3, facility environment air humidity:＜85%RH
2, equipment takes up an area of space: 3500mm * 4500mm * 6500mm; (W * H * L)
3, the equipment gross weight is approximately :≤5000kg/ platform. cover
Claims (3)
1. pilot scale line hot imidization stove includes wire chamber, several hot processing chambers, it is characterized in that: filament passes through wire chamber, several hot processing chambers respectively; The both sides of hot processing chamber are respectively arranged with cylindrical die roll; Described hot processing chamber inwall is an internal furnace, and internal furnace is fixed by brace summer, and vacuum forming heating ring flat-plate is equipped with in the internal furnace inboard; The hot processing chamber middle part is provided with air inlet, and the two ends of hot processing chamber are air outlet.
2. pilot scale line hot imidization stove according to claim 1 is characterized in that: be provided with temperature controller in the described hot processing chamber.
3. pilot scale line hot imidization stove according to claim 1, it is characterized in that: described hot processing chamber is five and puts arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102545809A CN101986077B (en) | 2010-08-09 | 2010-08-09 | Pilot line thermal imidization furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102545809A CN101986077B (en) | 2010-08-09 | 2010-08-09 | Pilot line thermal imidization furnace |
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| Publication Number | Publication Date |
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| CN101986077A CN101986077A (en) | 2011-03-16 |
| CN101986077B true CN101986077B (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102545809A Active CN101986077B (en) | 2010-08-09 | 2010-08-09 | Pilot line thermal imidization furnace |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103387670B (en) * | 2013-07-26 | 2015-12-02 | 中国科学院长春应用化学研究所 | A kind of imidization method of vacuum imidization stove and polyamic acid fiber |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6264866B1 (en) * | 1997-06-11 | 2001-07-24 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Method for producing polyimide film |
| CN1382847A (en) * | 2002-06-13 | 2002-12-04 | 东华大学 | Polyimide fibre and its preparing process |
| CN1484716A (en) * | 2001-10-05 | 2004-03-24 | ������������ʽ���� | Heat treatment device for synthetic fiber filament yarn |
| CN101684576A (en) * | 2009-07-30 | 2010-03-31 | 合肥日新高温技术有限公司 | Pre-oxidation furnace |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3729315B2 (en) * | 1998-12-24 | 2005-12-21 | 株式会社カネカ | Manufacturing method and manufacturing apparatus for polyimide film |
-
2010
- 2010-08-09 CN CN2010102545809A patent/CN101986077B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6264866B1 (en) * | 1997-06-11 | 2001-07-24 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Method for producing polyimide film |
| CN1484716A (en) * | 2001-10-05 | 2004-03-24 | ������������ʽ���� | Heat treatment device for synthetic fiber filament yarn |
| CN1382847A (en) * | 2002-06-13 | 2002-12-04 | 东华大学 | Polyimide fibre and its preparing process |
| CN101684576A (en) * | 2009-07-30 | 2010-03-31 | 合肥日新高温技术有限公司 | Pre-oxidation furnace |
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| CN101986077A (en) | 2011-03-16 |
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Denomination of invention: Pilot line thermal imidization furnace Effective date of registration: 20180824 Granted publication date: 20120725 Pledgee: Merchants Bank of Hefei Economic Development Zone Branch Pledgor: Hefei Risine Heatek Co., Ltd. Registration number: 2018340000423 |
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Date of cancellation: 20191015 Granted publication date: 20120725 Pledgee: Merchants Bank of Hefei Economic Development Zone Branch Pledgor: Hefei Risine Heatek Co., Ltd. Registration number: 2018340000423 |
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Denomination of invention: Pilot line thermal imidization furnace Effective date of registration: 20191028 Granted publication date: 20120725 Pledgee: Merchants Bank of Hefei Economic Development Zone Branch Pledgor: Hefei Risine Heatek Co., Ltd. Registration number: Y2019340000145 |