CN107830593B - Chemical fiber spinning return air conditioning device - Google Patents
Chemical fiber spinning return air conditioning device Download PDFInfo
- Publication number
- CN107830593B CN107830593B CN201711277125.9A CN201711277125A CN107830593B CN 107830593 B CN107830593 B CN 107830593B CN 201711277125 A CN201711277125 A CN 201711277125A CN 107830593 B CN107830593 B CN 107830593B
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- return air
- blowing
- water
- treatment
- cooling
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/117—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/192—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by electrical means, e.g. by applying electrostatic fields or high voltages
Abstract
The invention relates to the field of environmental protection and purification, in particular to a chemical fiber spinning return air conditioner. The device comprises a return air treatment front section and a blowing treatment rear section, wherein the return air treatment front section comprises a dust removal device, a first heat exchange device, a water spray cooling dust removal device, a first water baffle and a wind valve, and the return air passes through the dust removal device, the heat exchange device and the water spray cooling dust removal device and then is defogged and dehydrated through the first water baffle to be used as a wind source and then enters the blowing treatment rear section of the return air conditioning device through the wind valve; an outer exhaust valve is arranged on the wall of the air conditioner pipe between the first heat exchange device and the water spray cooling and dedusting device, the outer exhaust valve is connected with an outer exhaust fan, and the outer exhaust fan is connected with an exhaust gas treatment device. The device can circulate the concentration through the waste gas of blowing to chemical fiber spinning ring, and waste gas volume significantly reduced has made things convenient for the treatment of waste gas, has retrieved the heat in the waste gas simultaneously, has reduced the loss of energy.
Description
Technical Field
The invention relates to the field of environmental protection and purification, in particular to a chemical fiber spinning return air conditioner.
Background
At present, with the improvement of environmental protection requirements, the reduction treatment and the reduction emission of harmful substances in organic waste gas become the key to the problem encountered in reconstruction and expansion projects and new projects and to solve the low-cost treatment and the reduction emission of the organic waste gas.
The air quantity required by fiber cooling in chemical fiber production is the part with the largest air quantity in the whole fiber production process. The air containing certain temperature and humidity after being purified by the spinning air conditioner enters a fiber cooling device (a short fiber circular blowing system), and after passing through the cooling device, if no waste gas collecting device exists, the air flow is discharged along with the tows and is directly discharged into the atmosphere. The directly discharged gas usually contains oligomers (monomers, dimers, trimers and tetramers, mainly trimerized cyclic oligomers) separated from the polyester in the cooling process and accompanies smoke (especially the spinning of the recycled colored waste polyester textile as raw materials), so that the operation environment is influenced and the environment is greatly influenced. How to collect, treat and reuse the waste gas generated in the fiber production process is a key to solve the production environment and reduce the emission of organic waste gas.
At present, most of short fiber cooling processes are in the form of an externally-blown fiber cooling device, and a small part of fiber cooling devices for melt direct spinning or slice spinning adopt an internal central blowing mode, but the closed collection of gas after fiber cooling can be realized (outer ring blowing is performed through an interlayer channel arranged on a channel, central blowing can be performed through blowing and air suction on spinning and winding floors in a closed mode). Generally, after cooling the fibers sprayed from the polyester melt at 285±10 ℃ by 22±2 ℃ of wind, the wind temperature in the center of the filament bundle may be as high as 60±5 ℃, and the temperature of the hot wind collected from the shaft may be 50 ℃ or higher even when mixed with other waste wind. Compared with the air-conditioning air supply quantity, the collected air quantity is 1.2-1.3 times of the volume of the air-conditioning air supply quantity (mainly the thermal expansion of the air).
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide the chemical fiber spinning return air conditioner, which can circularly concentrate the waste gas blown by the chemical fiber spinning ring, greatly reduce the waste gas amount, facilitate the treatment of the waste gas, recover the heat in the waste gas and reduce the energy loss.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the device comprises a return air treatment front section and a blowing treatment rear section, wherein the return air treatment front section comprises a dust removal device, a first heat exchange device, a water spray cooling dust removal device, a first water baffle and a wind valve, and the return air passes through the dust removal device, the heat exchange device and the water spray cooling dust removal device and then is defogged and dehydrated through the first water baffle to be used as a wind source and then enters the blowing treatment rear section of the return air conditioning device through the wind valve; an outer exhaust valve is arranged on the wall of the air conditioner pipe between the first heat exchange device and the water spray cooling and dedusting device, the outer exhaust valve is connected with an outer exhaust fan, and the outer exhaust fan is connected with an exhaust gas treatment device.
As a further improvement, the post section of the blowing treatment comprises a coarse filter, a medium-efficiency filter, a spray dust removing device, a second water baffle, a surface cooler, a fine filter, a second heat exchanger and an air conditioner fan.
As a further improvement, the rear end of the air valve is provided with a negative pressure area, and the air pressure of the negative pressure area is within 2000 pa.
As a further improvement, the dust removing device comprises a coarse filter and a plate type electrostatic dust collector.
As a further improvement, the water spray cooling dust collector comprises a plurality of sets, the upper part of the spray pipe is connected with a water inlet pipe, the lower part of the spray pipe is provided with a water collecting tank, and the water collecting tank is connected with a water return pipe; the inlet tube be connected with spray water pump, spray water pump is connected to the cooling tower, the wet return be connected with the cooling tower water pump, the cooling tower water pump is connected to the cooling tower.
By adopting the technical scheme, the device can circularly concentrate the waste gas blown by the chemical fiber spinning ring, greatly reduce the waste gas amount, facilitate the treatment of the waste gas, recover the heat in the waste gas and reduce the energy loss.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of a return air conditioner.
Detailed Description
The following describes the embodiments of the present invention in detail with reference to the drawings.
The chemical fiber spinning return air conditioning device shown in fig. 1 comprises a closed loop blowing channel 1, a loop blowing fan 2, a return air collecting device 3, a return air conditioning device 4 and an air inlet channel 6, wherein the loop blowing fan 2 is connected with the air inlet channel 6, the air inlet channel 6 is connected with the return air conditioning device 4, the loop blowing fan 2 is arranged above the closed loop blowing channel 1, the return air collecting device 3 is arranged below the closed loop blowing channel 1, the return air collecting device 3 collects the return air of the closed loop blowing channel 1, and the return air enters the return air conditioning device 4 through a return air inlet 7. As shown in fig. 2, the return air conditioning device 4 includes a return air treatment front section and a blowing treatment rear section, wherein the return air treatment front section includes a dust removal device, a first heat exchange device 10, a water spray cooling dust removal device 11, a first water baffle 12 and a blast valve 13. The dust removing device comprises a coarse filter 8 and a plate-type electrostatic dust collector 9; the water spray cooling dust collector 11 comprises a plurality of spray pipes 30, wherein the upper parts of the spray pipes 30 are connected with a water inlet pipe, the lower parts of the spray pipes 30 are provided with water collecting tanks 29, and the water collecting tanks 29 are connected with a water return pipe; the water inlet pipe be connected with spray water pump 27, spray water pump 27 is connected to cooling tower 26, the wet return be connected with cooling tower water pump 28, cooling tower water pump 28 is connected to cooling tower 26. Organic waste gas containing oligomer dust with the temperature more than or equal to 55 ℃ and collected from a closed circular blowing channel spinning floor and a winding layer enters a return air inlet 7 of the return air collecting device 3 through a blower, dust is removed through a coarse filter 8 and a plate-type electrostatic dust remover 9, and then enters a heat exchanger of a first heat exchange device 10 from front to back in series, the heat exchanger is connected with water with the temperature lower than room temperature sent by a lithium bromide air conditioner return water tank, the temperature of hot water after heat exchange exceeds 55 ℃, the heat exchange can be performed as the power of a lithium bromide air conditioner, and the temperature of hot air passing through the first heat exchange device 10 can be reduced to room temperature. The cooled and dedusted organic waste gas enters the water spray cooling and dedusting device 11 for further dedusting and auxiliary cooling, and when the water temperature after water spray is greater than the room temperature, a cooling tower water pump 28 in the system is automatically started to circularly send the cooled and dedusted organic waste gas into a cooling tower 26, so that the aim of auxiliary cooling through the spray device is fulfilled. The purified and cooled return air with certain humidity is defogged and dewatered by the first water baffle 12 and then used as a wind source of the post-section of the blowing treatment. The rear end of the air valve 13 is provided with a negative pressure area 25, and the air pressure of the negative pressure area 25 is within 2000 pa. The post-section of the blowing treatment comprises a coarse filter 14, a medium-efficiency filter 15, a spray dust collector 16, a second water baffle 17, a surface cooler 18, a fine filter 19, a second heat exchanger 20 and an air conditioner fan 21. The air conditioning system is circulated by further purifying, dedusting, cooling/heating, and sending to the outer ring blowing, the inner ring blowing and the side blowing of the spinning blowing system.
As shown in fig. 2, an outer exhaust valve 22 is arranged on the wall of the air conditioner pipe between the first heat exchange device 10 and the water spray cooling and dedusting device 11, the outer exhaust valve 22 is connected with an outer exhaust fan 23, and the outer exhaust fan 23 is connected with an exhaust gas treatment device 24. The maximum air quantity of the external exhaust fan 23 is 30000m in the environment protection requirement 3 And/h, in addition, considering the treatment cost of the recycled air, on the premise of maximizing the utilization of the return air, the air quantity entering the outer exhaust fan 23 is regulated by the electric control outer exhaust valve 22.
Claims (1)
1. The chemical fiber spinning return air conditioning device is characterized by comprising a closed loop blowing channel (1), a loop blowing fan (2), a return air collecting device (3), a return air conditioning device (4) and an air inlet channel (6), wherein the loop blowing fan (2) is connected with the air inlet channel (6), the air inlet channel (6) is connected with the return air conditioning device (4), the loop blowing fan (2) is arranged above the closed loop blowing channel (1), the return air collecting device (3) is arranged below the closed loop blowing channel (1), the return air collecting device (3) collects the return air of the closed loop blowing channel (1), and the return air enters the return air conditioning device (4) through a return air inlet (7);
the return air conditioning device (4) comprises a return air treatment front section and a blowing treatment rear section, the return air treatment front section comprises a dust removal device, a first heat exchange device (10), a water spray cooling dust removal device (11), a first water baffle (12) and an air valve (13), return air passes through the dust removal device, the first heat exchange device (10) and the water spray cooling dust removal device (11) and then enters the blowing treatment rear section of the return air conditioning device (4) through the air valve (13) as a wind source after being defogged and dehydrated, a negative pressure area (25) is formed at the rear end of the air valve (13), and the wind pressure of the negative pressure area (25) is within 2000 pa;
an outer exhaust valve (22) is arranged on the wall of the air conditioner pipe between the first heat exchange device (10) and the water spray cooling and dedusting device (11), the outer exhaust valve (22) is connected with an outer exhaust fan (23), and the outer exhaust fan (23) is connected with an exhaust gas treatment device (24);
the water spray cooling dust collector (11) comprises a plurality of sets of spray pipes (30), the upper parts of the spray pipes (30) are connected with a water inlet pipe, the lower parts of the spray pipes (30) are provided with water collecting tanks (29), and the water collecting tanks (29) are connected with a water return pipe; the water inlet pipe is connected with a spray water pump (27), the spray water pump (27) is connected to the cooling tower (26), the water return pipe is connected with a cooling tower water pump (28), and the cooling tower water pump (28) is connected to the cooling tower (26);
the dust removing device comprises a first coarse filter (8) and a plate-type electrostatic dust collector (9); the post section of the blowing treatment comprises a second coarse filter (14), a medium-efficiency filter (15), a spray dust collector (16), a second water baffle (17), a surface cooler (18), a fine filter (19), a second heat exchanger (20) and an air conditioner fan (21);
organic waste gas containing oligomer dust with the temperature of more than or equal to 55 ℃ is collected from a closed circular blowing channel spinning floor and a winding layer; the organic waste gas enters a return air inlet (7) of the return air collecting device (3) through a blower, enters a first heat exchange device (10) after being dedusted through a first coarse filter (8) and a plate-type electrostatic precipitator (9), and the temperature of hot air passing through the first heat exchange device (10) is reduced to room temperature; the cooled and dedusted organic waste gas enters a water spray cooling and dedusting device (11) to carry out further dedusting and auxiliary cooling, and the purified and cooled return air with certain humidity is defogged and dewatered through a first water baffle (12) and then is used as a wind source of a post-section of blowing treatment; the air conditioning system is circulated by further purifying, dedusting, cooling/heating, and sending to the outer ring blowing, the inner ring blowing and the side blowing of the spinning blowing system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711277125.9A CN107830593B (en) | 2017-12-06 | 2017-12-06 | Chemical fiber spinning return air conditioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711277125.9A CN107830593B (en) | 2017-12-06 | 2017-12-06 | Chemical fiber spinning return air conditioning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107830593A CN107830593A (en) | 2018-03-23 |
| CN107830593B true CN107830593B (en) | 2023-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711277125.9A Active CN107830593B (en) | 2017-12-06 | 2017-12-06 | Chemical fiber spinning return air conditioning device |
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| CN (1) | CN107830593B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110898615A (en) * | 2018-09-14 | 2020-03-24 | 萍乡市华填化工填料有限公司 | Coking industrial waste gas treatment tower and treatment method |
| CN110898619A (en) * | 2018-09-14 | 2020-03-24 | 萍乡市华填化工填料有限公司 | Coking waste gas treatment process and filler treatment tower |
| CN112747376A (en) * | 2020-12-31 | 2021-05-04 | 芜湖弋江海创高新智能空调股份有限公司 | Air conditioner end product capable of removing dust |
| CN113802194B (en) * | 2021-09-17 | 2022-07-15 | 宁波天诚化纤有限公司 | Polypropylene-polyethylene composite fiber spinning equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0937791A2 (en) * | 1998-02-21 | 1999-08-25 | B a r m a g AG | Process and apparatus for the spinning of a multifilament yarn |
| JP2001174475A (en) * | 1999-12-15 | 2001-06-29 | Toyobo Co Ltd | Anemometer |
| CN2615607Y (en) * | 2003-02-27 | 2004-05-12 | 江阴市空调除尘设备厂 | High-pressure air conditioner set for spinning |
| CN103912949A (en) * | 2014-04-28 | 2014-07-09 | 陈鹏 | Novel spinning cooling device and method |
| CN206369270U (en) * | 2016-12-30 | 2017-08-01 | 山东华科规划建筑设计有限公司 | Heat air conditioner again is subcooled in a kind of sub-prime recuperation of heat cryogen |
| CN207881026U (en) * | 2017-12-06 | 2018-09-18 | 宁波大发化纤有限公司 | A kind of synthetic fiber spinning return air air-conditioning device |
-
2017
- 2017-12-06 CN CN201711277125.9A patent/CN107830593B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0937791A2 (en) * | 1998-02-21 | 1999-08-25 | B a r m a g AG | Process and apparatus for the spinning of a multifilament yarn |
| JP2001174475A (en) * | 1999-12-15 | 2001-06-29 | Toyobo Co Ltd | Anemometer |
| CN2615607Y (en) * | 2003-02-27 | 2004-05-12 | 江阴市空调除尘设备厂 | High-pressure air conditioner set for spinning |
| CN103912949A (en) * | 2014-04-28 | 2014-07-09 | 陈鹏 | Novel spinning cooling device and method |
| CN206369270U (en) * | 2016-12-30 | 2017-08-01 | 山东华科规划建筑设计有限公司 | Heat air conditioner again is subcooled in a kind of sub-prime recuperation of heat cryogen |
| CN207881026U (en) * | 2017-12-06 | 2018-09-18 | 宁波大发化纤有限公司 | A kind of synthetic fiber spinning return air air-conditioning device |
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| CN107830593A (en) | 2018-03-23 |
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Effective date of registration: 20230829 Address after: No.266 Binhai 2nd Road, Hangzhou Bay New District, Ningbo City, Zhejiang Province Applicant after: Ningbo Dafa New Material Co.,Ltd. Address before: 315000 Binhai 2nd Road, Hangzhou Bay New Area, Cixi Economic Development Zone, Ningbo, Zhejiang Applicant before: NINGBO DAFA CHEMICAL FIBER Co.,Ltd. |
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