CN108589125B - Intelligent electric control drainage method and device for steam drying cylinder - Google Patents
Intelligent electric control drainage method and device for steam drying cylinder Download PDFInfo
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- CN108589125B CN108589125B CN201810574813.XA CN201810574813A CN108589125B CN 108589125 B CN108589125 B CN 108589125B CN 201810574813 A CN201810574813 A CN 201810574813A CN 108589125 B CN108589125 B CN 108589125B
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- steam
- temperature
- drying cylinder
- drainage
- pipe
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- 238000001035 drying Methods 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000004744 fabric Substances 0.000 description 11
- 238000004364 calculation method Methods 0.000 description 3
- 238000004043 dyeing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
Abstract
The invention discloses an intelligent electric control drainage method and device for a steam drying cylinder, wherein steam is input into the steam drying cylinder through a steam main pipe to push condensed water in the steam drying cylinder to drain out, and when the temperature in a drainage pipe pipeline is equal to the sum of the steam temperature in the steam main pipe and a temperature coefficient K plus a return difference temperature delta T, the control valve is closed to stop drainage; when the temperature in the drain pipe is equal to the product of the steam temperature in the steam main pipe and the temperature coefficient K, the control valve is opened to drain water, wherein DeltaT is less than or equal to 6 ℃ at 0 ℃ and K is less than or equal to 0.6 and less than or equal to 0.9. The drainage device comprises a steam drying cylinder, a drainage pipe, a first temperature sensor, a control valve, an electric controller and a steam main pipe, and also comprises a second temperature sensor or a steam pressure sensor which is arranged on the pipeline of the steam main pipe and used for detecting the temperature or the pressure of steam in the steam main pipe. The invention can accurately drain water and stop draining water, improves the heat efficiency and greatly reduces the steam consumption.
Description
Technical Field
The invention relates to an electric control drainage method and a drainage device for a steam drying cylinder, belonging to the technical field of textile dyeing and finishing technology and equipment.
Background
A large amount of steam drying cylinders are used by textile printing and dyeing enterprises to dry the fabrics with water, and condensed water in the steam drying cylinders affects heat exchange efficiency, so that the heat efficiency of the steam drying cylinders can be improved only by timely discharging the condensed water, thereby saving steam and reducing energy consumption.
The existing electric control drainage device of the steam drying cylinder comprises the steam drying cylinder, a rotary joint, a drainage pipe communicated with the inner cavity of the steam drying cylinder through a drainage port of the rotary joint, a temperature transmitter arranged on the drainage pipe and used for detecting the temperature in the drainage pipe, a control valve arranged on the drainage pipe and used for opening or closing the drainage pipe, an electric controller and a steam header pipe, wherein the temperature transmitter and the control valve are respectively electrically connected with the electric controller, and steam enters the steam drying cylinder through the steam header pipe and a steam inlet of the rotary joint.
When the steam drying cylinder equipment is started, the electric controller opens the control valve, steam enters the steam drying cylinder through the steam main pipe and the steam inlet of the rotary joint, the condensed water is pushed to be discharged outwards through the water drain pipe and the control valve, in the water drain process, the electric controller receives temperature data in the water drain pipe detected by the temperature transmitter, when the steam temperature reaches the water drain end temperature set in the electric controller, the electric controller closes the control valve, and the water drain pipe stops draining.
The electric controller receives temperature data in the drain pipe pipeline detected by the temperature transmitter in real time on line, and when the steam temperature reaches the drain temperature set in the electric controller, the electric controller opens the control valve to drain water.
The existing electric control dewatering method and device for the steam drying cylinder have the following two defects in the working process: (1) When the temperature or pressure of the steam in the steam main pipe changes or the opening of the steam valve of the steam main pipe is artificially changed, the method and the device can not accurately drain water and accurately stop draining water, so that the thermal efficiency of the steam drying cylinder is low, the steam leakage is serious, a large amount of energy sources are wasted, and the steam consumption is greatly increased; (2) In the process of drying the fabric with water by the steam drying cylinder, the steam lock cannot be released, water is easy to accumulate in the drying cylinder, so that the dead weight of the drying cylinder is increased, potential safety hazards exist, the drainage efficiency and the steam utilization rate are low, and the production and operation cost is increased.
Disclosure of Invention
The invention aims to solve the technical problems of overcoming the defects of the prior art and providing the intelligent electric control drainage method for the steam drying cylinder, which can accurately drain water and accurately stop draining water, improve the thermal efficiency of the steam drying cylinder, prevent steam leakage, save energy and greatly reduce steam consumption.
The invention further aims to solve the technical problem of providing the intelligent electric control drainage device for the steam drying cylinder, which can accurately drain water and accurately stop draining water, improve the thermal efficiency of the steam drying cylinder, prevent steam leakage, save energy and greatly reduce steam consumption.
In order to solve the technical problems, the intelligent electric control drainage method of the steam drying cylinder is adopted, steam is input into the steam drying cylinder through a steam main pipe, condensed water in the steam drying cylinder is pushed to be discharged outwards through a drainage pipe and a control valve, and when the temperature in a pipeline of the drainage pipe is equal to the sum of the steam temperature in the steam main pipe and the temperature coefficient K plus the return difference temperature delta T, the control valve is closed to stop drainage; when the temperature in the drain pipe pipeline is equal to the product of the steam temperature in the steam main pipe and the temperature coefficient K, the control valve is opened to drain water; wherein, the delta T is less than or equal to 6 ℃ at 0 ℃, and K is less than or equal to 0.6 and less than or equal to 0.9.
As a preferred embodiment of the above method, the return difference temperature DeltaT is in the range of 2 to 5 ℃ and the temperature coefficient K is in the range of 0.75 to 0.85.
As a preferred embodiment of the above method, the control valve is periodically opened for several seconds to unlock the steam lock during the period of stopping the water drain.
In the present invention, the period is preferably a period every 20 minutes.
In order to solve the technical problems, the intelligent electric control drainage device of the steam drying cylinder comprises the steam drying cylinder, a drainage pipe communicated with the inner cavity of the steam drying cylinder, a first temperature sensor which is arranged on a drainage pipe and used for detecting the temperature in the drainage pipe, a control valve which is arranged on the drainage pipe and used for opening or closing the drainage pipe, an electric controller and a steam main pipe, wherein the first temperature sensor is electrically connected with the electric controller, the control valve is controlled by the electric controller, steam is input into the steam drying cylinder through the steam main pipe, and the intelligent electric control drainage device of the steam drying cylinder further comprises a second temperature sensor or a steam pressure sensor which is arranged on the steam main pipe and used for detecting the steam temperature or the steam pressure in the steam main pipe, and the second temperature sensor or the steam pressure sensor is electrically connected with the electric controller.
As a preferred embodiment of the present invention, a manual shut-off valve is also mounted on the steam header line.
In the invention, the electric controller can be a digital controller with a human-computer interface or an embedded system or an industrial personal computer.
After the hydrophobic method and the device are adopted, the invention has the following beneficial effects:
in the drainage method, when the temperature in a drainage pipe pipeline is equal to the product of the steam temperature in a steam main pipe and the temperature coefficient K plus the return difference temperature delta T, a control valve is closed to stop drainage; when the temperature in the drain pipe pipeline is equal to the product of the steam temperature in the steam main pipe and the temperature coefficient K, the control valve is opened to drain water. Correspondingly, in the drainage device, a second temperature sensor or a vapor pressure sensor for detecting the vapor temperature or the vapor pressure in the vapor main pipe is arranged on the vapor main pipe pipeline, when the drainage device works, the second temperature sensor or the vapor pressure sensor detects the vapor temperature or the vapor pressure in the vapor main pipe in real time and transmits the detected vapor pressure to the electric controller, meanwhile, the first temperature sensor detects the temperature in the drain pipe pipeline in real time and transmits the detected vapor pressure to the electric controller, the electric controller judges after calculation, and when the temperature in the drain pipe pipeline is equal to the product of the vapor temperature in the vapor main pipe and the temperature coefficient K plus the return difference temperature DeltaT, the control valve is closed, and drainage is stopped; when the temperature in the drain pipe pipeline is equal to the product of the steam temperature in the steam main pipe and the temperature coefficient K, the control valve is opened to drain water. Therefore, when the temperature or pressure of the steam in the steam main pipe changes or the opening of the steam valve of the steam main pipe is artificially changed, accurate drainage is not affected.
The invention can automatically and automatically unlock the steam lock in the process of drying the fabric with water by the steam drying cylinder, is more beneficial to accurate drainage, ensures higher drainage measurement and control precision, greatly improves drainage efficiency, greatly improves steam utilization rate and achieves energy conservation and high efficiency.
The invention can meet the drying requirements of fabrics with different gram weights and water contents, and better achieves the intelligent electric control dewatering effect of the steam drying cylinder.
The drainage device has the advantages of simple structure, strong practicability and convenient implementation, enhances the reliability of the system, reduces the operation cost and better meets the production requirement.
Drawings
The following describes the embodiments of the present invention in further detail with reference to the drawings.
Fig. 1 is a schematic structural view of an intelligent electric control drainage device of a steam drying cylinder.
Fig. 2 is an enlarged schematic view at a in fig. 1.
Fig. 3 is a schematic diagram of a connection structure of a steam drying cylinder, a water drain pipe, a first temperature sensor and a control valve in the intelligent electric control water drain device of the steam drying cylinder.
Detailed Description
Referring to the intelligent electric control drainage method of the steam drying cylinder shown in fig. 1 to 3, steam 7 is input into the steam drying cylinder 1 through a steam main pipe 6 to push condensed water in the steam drying cylinder 1 to be discharged outwards through a water drain pipe 2 and a control valve 4, and when the temperature in a pipeline of the water drain pipe 2 is equal to the sum of the steam temperature in the steam main pipe 6 and a temperature coefficient K plus a return difference temperature delta T, the control valve 4 is closed to stop drainage; when the temperature in the pipeline of the water drain pipe 2 is equal to the product of the steam temperature in the steam main pipe 6 and the temperature coefficient K, the control valve 4 is opened to drain water; wherein, the delta T is less than or equal to 6 ℃ at 0 ℃, and K is less than or equal to 0.6 and less than or equal to 0.9.
As a preferred embodiment of the above method, the return difference temperature DeltaT is in the range of 2 to 5 ℃ and the temperature coefficient K is in the range of 0.75 to 0.85.
As a preferred embodiment of the above method, the control valve 4 is periodically opened for several seconds to unlock the steam during the period of stopping the water drain. In the present invention, the number of seconds is preferably 2 or 3 seconds.
As a preferred embodiment of the above method, the cycle is a cycle every 20 minutes, i.e. the control valve 4 opens the hydrophobic pipe every 20 minutes for 2 seconds to unlock the steam.
Referring to fig. 1 to 3, an intelligent electric control drainage device of a steam drying cylinder adopting the drainage method comprises a steam drying cylinder 1, a drainage pipe 2 communicated with the inner cavity of the steam drying cylinder 1, a first temperature sensor 3 installed on a pipeline of the drainage pipe 2 and used for detecting the temperature in the pipeline of the drainage pipe 2, a control valve 4 installed on the pipeline of the drainage pipe 2 and used for opening or closing the drainage pipe 2, an electric controller 5 and a steam main 6, wherein the first temperature sensor 3 is electrically connected with the electric controller 5, the control valve 4 is controlled by the electric controller 5, and in the invention, the control valve 4 can be an electric control valve or an air control valve, and when the control valve 4 is the electric control valve, the electric control valve is electrically connected with the electric controller 5 through a wireless or wired line; when the control valve 4 is a gas control valve, the gas control valve is controlled by the electric controller 5 through a relay; steam 7 is input into the steam drying cylinder 1 through a steam main pipe 6, and the intelligent electric control drainage device of the steam drying cylinder further comprises a second temperature sensor or a steam pressure sensor 8 which is arranged on a pipeline of the steam main pipe 6 and used for detecting the temperature or the steam pressure of steam in the steam main pipe 6, wherein the second temperature sensor or the steam pressure sensor 8 is electrically connected with the electric controller 5. In the present invention, as shown in fig. 1, the number of steam cylinders 1 is preferably a plurality, and the plurality of steam cylinders 1 are arranged in a staggered manner. As shown in fig. 2 and 3, a conventional rotary joint 10 is preferably arranged at one end of each steam drying cylinder 1, the rotary joint 10 is provided with a drain port 10a and a steam inlet 10b, one end of the drain pipe 2 is communicated with the inner cavity of the steam drying cylinder 1 through the drain port 10a, and the steam main pipe 6 is connected with the steam inlet 10b of the rotary joint 10 through a branch pipe 11, so that steam 7 is input into the steam drying cylinder 1. As shown in fig. 1 and 2, the other end of the hydrophobic pipe 2 at each steam drying cylinder 1 is communicated with a water collecting pipe 12. In the present invention, steam 7 may be fed into steam cylinder 1 not through rotary joint 10, but through other conventional connection mechanisms, not shown.
As a preferred embodiment of the present invention, as shown in fig. 1, a manual shut-off valve 9 for manually opening or closing the steam header 6 is further installed on the pipe of the steam header 6.
In the present invention, the electric controller 5 is preferably a digital controller having a human-machine interface such as a DDC digital controller or an embedded system or an industrial personal computer.
Referring to fig. 1, the working process of the present invention is as follows:
the manual stop valve 9 on the steam header pipe 6 is manually opened, the second temperature sensor 8 detects the temperature of steam in the steam header pipe 6 in real time and transmits the steam to the electric controller 5, meanwhile, the first temperature sensor 3 detects the temperature in the pipeline of the water drain pipe 2 in real time and transmits the steam to the electric controller 5, the electric controller 5 judges after calculation, and when the temperature in the pipeline of the water drain pipe 2 is equal to the product of the steam temperature in the steam header pipe 6 and the temperature coefficient K plus the return difference temperature delta T, the control valve is closed to stop water drain; when the temperature in the drain pipe pipeline is equal to the product of the steam temperature in the steam main pipe and the temperature coefficient K, the control valve is opened to drain water. In the invention, different application parameters DeltaT and K can be selected according to the water content of the fabric of the dyeing and finishing processing technology and the requirement on drying efficiency, when the water content and gram weight of the fabric 13 are higher and the technology is required to have higher drying efficiency, deltaT can be selected to be 6 ℃, and K can be selected to be 0.85 or 0.9; on the contrary, when the moisture content and gram weight of the fabric 13 are smaller, the process requires the drying cropping to keep proper moisture content, rapid drying is not required, and in order to reduce steam consumption, deltaT can be selected to be 1 ℃ or 2 ℃, and K can be selected to be 0.6; when the fabric condition is in between, deltaT can be selected to be 3 ℃ or 4 ℃ or the like, and K can be selected to be 0.7 or 0.75 or the like. During the drying process of the fabric 13 with water in the steam drying cylinder 1, the electric controller 5 controls the control valve 4 to open the water drain pipe 2 for a plurality of seconds every 20 minutes or 30 minutes or other set time to unlock the steam, so that the blocked steam in the water drain pipe 2 is discharged outwards.
In the invention, the second temperature sensor 8 in the working process can also be replaced by a vapor pressure sensor, when the working process is carried out, the vapor pressure sensor detects the vapor 7 pressure in the tube cavity of the vapor main tube 6 in real time and transmits the real-time vapor pressure to the electric controller 5, the electric controller 5 receives the pressure data and converts the real-time vapor pressure into the real-time vapor temperature through conversion calculation according to the saturated vapor temperature and the pressure comparison table, so that the method is adopted for carrying out drainage or stopping drainage.
In addition, in the whole working process of the dewatering device, the electric controller 5 always monitors and refreshes the temperature difference between the first temperature sensor 3 and the second temperature sensor 8 on line, and when the temperature difference exceeds the preset change range, the temperature is preferably 10 ℃, the dewatering temperature value is corrected, namely the return difference temperature delta T can be selected to be a value within the range of more than 6 ℃ and less than or equal to 30 ℃ so as to adapt to the drying requirements of fabrics with different gram weights and water contents, and the intelligent electric control dewatering effect of the steam drying cylinder is better achieved.
The dewatering method and the device provided by the invention are tried out, can accurately drain water and accurately stop draining, improve the thermal efficiency of the steam drying cylinder, reduce the steam consumption, better adapt to the drying requirements of fabrics with different gram weights and water contents, and obtain good effects.
Claims (4)
1. The intelligent electric control drainage method for the steam drying cylinder is characterized in that steam (7) is input into the steam drying cylinder (1) through a steam main pipe (6) to push condensed water in the steam drying cylinder (1) to be discharged outwards through a drainage pipe (2) and a control valve (4), and the intelligent electric control drainage method is characterized in that:
when the temperature in the pipeline of the drain pipe (2) is equal to the sum of the steam temperature in the steam main pipe (6) and the temperature coefficient K plus the return difference temperature delta T, the control valve (4) is closed to stop draining;
when the temperature in the pipeline of the drain pipe (2) is equal to the product of the steam temperature in the steam main pipe (6) and the temperature coefficient K, the control valve (4) is opened to drain water;
wherein, the delta T is less than or equal to 6 ℃ at 0 ℃, and K is less than or equal to 0.6 and less than or equal to 0.9.
2. The intelligent electronically controlled dewatering method of a steam dryer of claim 1, wherein: the value range of the return difference temperature DeltaT is 2-5 ℃, and the value range of the temperature coefficient K is 0.75-0.85.
3. The intelligent electrically controlled dewatering method of a steam drying cylinder according to claim 1 or 2, wherein: during the period of stopping the drainage, the control valve (4) is periodically opened for a few seconds to unlock the steam lock.
4. The intelligent electronically controlled dewatering method of a steam dryer of claim 3, wherein: the period is a period every 20 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810574813.XA CN108589125B (en) | 2018-06-06 | 2018-06-06 | Intelligent electric control drainage method and device for steam drying cylinder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810574813.XA CN108589125B (en) | 2018-06-06 | 2018-06-06 | Intelligent electric control drainage method and device for steam drying cylinder |
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| Publication Number | Publication Date |
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| CN108589125A CN108589125A (en) | 2018-09-28 |
| CN108589125B true CN108589125B (en) | 2023-11-03 |
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| CN201810574813.XA Active CN108589125B (en) | 2018-06-06 | 2018-06-06 | Intelligent electric control drainage method and device for steam drying cylinder |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109682191A (en) * | 2019-01-29 | 2019-04-26 | 常州宏大智能装备产业发展研究院有限公司 | Steaminess drying cylinder fabric drying control method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202786748U (en) * | 2012-09-28 | 2013-03-13 | 黄逸玮 | Drying cylinder steam automatic control device |
| CN105624954A (en) * | 2016-01-25 | 2016-06-01 | 广东溢达纺织有限公司 | System and method for automatically controlling moisture content of fabric |
| CN106440756A (en) * | 2016-10-25 | 2017-02-22 | 顾金华 | Steam cylinder electric control drainage device |
| CN208414845U (en) * | 2018-06-06 | 2019-01-22 | 常州宏大智能装备产业发展研究院有限公司 | The intelligent electric-controlled steam trap connection of steam baking tube |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7162873B2 (en) * | 2001-03-16 | 2007-01-16 | Mikhail Levitin | Method of running a condenser for liquidation of steam or vapor |
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- 2018-06-06 CN CN201810574813.XA patent/CN108589125B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202786748U (en) * | 2012-09-28 | 2013-03-13 | 黄逸玮 | Drying cylinder steam automatic control device |
| CN105624954A (en) * | 2016-01-25 | 2016-06-01 | 广东溢达纺织有限公司 | System and method for automatically controlling moisture content of fabric |
| CN106440756A (en) * | 2016-10-25 | 2017-02-22 | 顾金华 | Steam cylinder electric control drainage device |
| CN208414845U (en) * | 2018-06-06 | 2019-01-22 | 常州宏大智能装备产业发展研究院有限公司 | The intelligent electric-controlled steam trap connection of steam baking tube |
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