CN110220262A - A kind of fresh air processing method in non-sleeve configuration paper mill workshop - Google Patents
A kind of fresh air processing method in non-sleeve configuration paper mill workshop Download PDFInfo
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- CN110220262A CN110220262A CN201910485223.4A CN201910485223A CN110220262A CN 110220262 A CN110220262 A CN 110220262A CN 201910485223 A CN201910485223 A CN 201910485223A CN 110220262 A CN110220262 A CN 110220262A
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- 238000000034 method Methods 0.000 claims description 27
- 230000003584 silencer Effects 0.000 claims description 12
- 239000005030 aluminium foil Substances 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 6
- 230000030279 gene silencing Effects 0.000 claims description 5
- 239000011358 absorbing material Substances 0.000 claims description 4
- 239000011229 interlayer Substances 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- 238000005422 blasting Methods 0.000 claims description 2
- 238000004378 air conditioning Methods 0.000 abstract description 7
- 230000003749 cleanliness Effects 0.000 abstract description 2
- 230000036541 health Effects 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008520 organization Effects 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
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- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- 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
- F24F13/28—Arrangement or mounting of filters
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
-
- 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
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/242—Sound-absorbing material
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention discloses a kind of fresh air processing methods in non-sleeve configuration paper mill workshop, by the way that the internal structure of Fresh air handling units and the position of reasonable Arrangement exhaust outlet is rationally arranged, improve air blow and return mode, to increase air-supply uniformity, it improves air-conditioning efficiency and reduces energy loss, which can effectively reduce the use space in paper workshop processed, the air-conditioning distance of adjusting, filter device therein can be effectively improved air cleanliness, meet the requirement of green building.The present invention can make air-flow become organized, reduce energy loss in the case where rationally utilizing space.
Description
Technical field:
The invention belongs to Heating, Ventilation and Air Conditioning (HVAC) Technology field, the air-conditioning ventilation systems being related in the workshop of paper mill, and in particular to Yi Zhongxin
Wind process method.
Background technique:
With the development of air-conditioning technical, requirement of each enterprise for air conditioner ventilation technology is increasingly stringenter.Paper mill exists
A large amount of heat can be generated in production process, to ensure the normal operation of machine and the quality of product, need constantly to be passed through new
Wind takes away indoor heat, regulates and controls room temperature.The design of ZL 201610040924 produces a kind of wall type air conditioner unit, it is installed
Without being equipped with special computer room between the column and column in workshop, installation space has greatly been saved.But this wall
The Fresh air handing of formula unit is the mode of air draft on sidewall air supply top, and gas flows no sense of organization, be easy to cause air-flow empty
White area, hot and cold air mixing is uneven, and energy loss is larger.
Summary of the invention
Technical problem: the present invention provides one kind, and air-flow to be made to become organized, subtracts in the case where rationally utilizing space
The fresh air processing method in the non-sleeve configuration paper mill workshop of few energy loss.
Technical solution: the fresh air processing method in non-sleeve configuration paper mill workshop of the invention, comprising the following steps:
(1) setting width is 2D, and it is highly the paper mill workshop of 1.5D~2D that length, which is 4D~5D, parallel in the middle part of workshop
The papermaking unit of two rows of longitudinal directions is set, and every row's papermaking unit includes an at least paper machine, in the intermediate arrangement two of two paper discharge machines
The Fresh air handling units of back-to-back arrangement are arranged, the top surface of Fresh air handing unit is 10%~12%D, machine far from the distance of workshop ceiling
Fresh inlet is arranged in group epicoele back, opens up fresh inlet from the workshop ceiling on Fresh air handling units top, the fresh inlet
Top is 1.25%D according to the distance on workshop roof, is connected by the fresh inlet of pipeline and Fresh air handling units to unit blasting air；
(2) exhaust outlet in paper mill workshop is set by one of the following two kinds mode:
A) on the ceiling above the paper machine, along the multiple exhaust outlets of workshop longitudinal direction spaced set, all air drafts
The sum of area of mouth is 1~1.2 times of the sum of all fresh inlet areas, from the paper feed direction of paper machine to paper delivery direction, air draft
Open area is gradually increased, and the area of some exhaust outlet is 1.1~1.25 times of its adjacent upper air draft open area, the row
The top in air port is 10%D according to the distance on workshop roof；
B) it is D that lower edge height is arranged on two sides of paper mill workshop longitudinal direction, on the wall between two adjacent upright
The exhaust outlet of~1.2D, the sum of area of all exhaust outlets is 1~1.2 times of the sum of all fresh inlet areas, from paper machine
Paper feed direction to paper delivery direction, air draft open area is gradually increased, and the area of some exhaust outlet is its adjacent upper exhaust outlet face
Long-pending 1.1~1.25 times；
(3) start Fresh air handling units, run by one of following three kinds of modes:
A) summer uses the method for operation of all-fresh air；
B) transition season uses the method for operation of fresh air return air mixing；
C) winter uses the method for operation of full return air.
Further, the season that summer environment temperature is 35 degrees Celsius or more, described in the step (3) in the present invention
The season that transition season is 35 degrees Celsius of environment temperature or less Dao subzero 5 degrees Celsius or more, the winter are environment temperature subzero 5
Degree Celsius season below.
Further, in the present invention, the Fresh air handling units include the upper box for setting gradually and being connected to from top to bottom, nowel
Body and air compartment, the upper box middle part are provided with the primary filter for being divided into epicoele and cavity of resorption, the bottom of the cavity of resorption
Heat exchanger there are two being arranged side by side, the lower box middle part is arranged side by side, and there are two axial flow blower, described two axial flow blowers point
It is not correspondingly arranged with a heat exchanger above it, lower box bottom is provided with silencer, and the back side setting of the epicoele is useful
It is provided on the fresh air air inlet for being passed through outside air and the shield outside the fresh air air inlet, the air compartment
Air-supply current equalizer positioned at front wall surface and the air-supply slot above the air-supply current equalizer.
Further, in the present invention, including coil pipe and the fin being arranged on the coil pipe, the wing in the heat exchanger
Piece is hydrophilic aluminium foil fin.
Further, in the present invention, the top of the epicoele is provided with air return system, is provided on the fresh air air inlet
Volume damper.
Further, in the present invention, the air-supply current equalizer is made of air-supply orifice plate.
Further, in the present invention, the air-supply orifice plate punching rate is 15%.
Further, in the present invention, the air-supply orifice plate is located in the cavity wall of air compartment front, and air-supply wind speed is 3.4m/s, it send
Wind groove is located at air-supply orifice plate top, and air-supply wind speed is 6.8/s.
Further, it blows in the present invention, when winter -75 ° -0 ° of the air curtain angle of slot, meets difference for 0 ° -75 ° when summer
The air-supply demand in season.Further, in the present invention, the shield includes outer wall, the inner wall for being provided with aperture, is arranged described
The interlayer made of sound-absorbing material between outer wall and inner wall.
Further, in the present invention, circular opening is provided on the inner wall, the percent opening of inner wall is 10%~20%.
Further, in the present invention, the detailed process of the all-fresh air processing mode in the step (3) are as follows: air return system
It closes, fresh air 100% enters fresh inlet from outdoor, and successively by the silencing means on the inside of shield, air quantity adjustment sheet is just imitated
Filter, heat exchanger, axial flow blower, silencer are finally sent into workshop in the outlet air orifice plate of air compartment antetheca, take away heat by paper machine
Workshop is discharged from exhaust outlet in amount and steam；
The detailed process of fresh air return air mixed processing mode in the step (3) are as follows: air quantity adjustment sheet is half-open, air draft
Mouth is opened, while introducing indoor return air and fresh air, successively passes through primary filter, heat exchanger, axis stream wind after two kinds of wind mixing
Machine, silencer are finally blown into workshop in the outlet air orifice plate of air compartment antetheca, are arranged by exhaust outlet to outdoor by paper machine part wind,
Part, which rises to behind the top of workshop, enters Fresh air handling units by the air return system on unit top；
The detailed process of full return air processing mode in the step (3) are as follows: air quantity adjustment sheet and exhaust outlet are to close
State, 100% is indoor return air, enters Fresh air handling units by air return system, successively passes through primary filter, heat exchanger, axis stream
Blower, silencer are finally blown into workshop in the outlet air orifice plate of air compartment antetheca, heat and steam are taken away by paper machine, on hot-air
Workshop top is risen to, unit is finally returned to by the air return system on Fresh air handling units top again.
Further, in the present invention, the Fresh air handling units distance from top workshop top 10%D.
Further, in the present invention, three regions ratio from left to right shared on width in the transverse direction of workshop point
It Wei not 20%D-28%D, 54%D and 18%D-26%D.
Further, in the present invention, the area of exhaust outlet is 5%D*5%D, and exhaust outlet bottom is far from ground when the air draft of side
Height be 3.7 meters, the distance between every two exhaust outlet be 4%D.
The present invention is improved and is sent back to by the way that the internal structure of Fresh air handling units and the position of reasonable Arrangement exhaust outlet is rationally arranged
Wind mode improves air-conditioning efficiency and reduces energy loss, which can effectively be reduced to increase air-supply uniformity
The use space in paper workshop processed, the air-conditioning distance of adjusting, filter device therein can be effectively improved air cleanliness, meet
The requirement of green building.
The utility model has the advantages that compared with the fresh air processing method in existing paper mill, the invention has the following advantages that
The Fresh air handling units used in the present invention, having superthin structure length and width, when depth-width ratio is larger, flexible for installation, banks up
It is equivalent to the effect of a face wall in the centre of two paper discharge machines, does not need to open up special computer room, is greatly improved workshop space
Utilization rate, reduce cost.
The Fresh air handling units used in the present invention are equipped with hydrophilic aluminium foil, the hydrophilic film on aluminium foil on the fin on heat exchanger
Indoor alkalescent gas can be effectively reduced to contact with aluminium flake, have the effect of anticorrosion, mould proof.
Fresh air handling units of the invention, winter lead to hot water, and cold wind can be effectively prevent to enter wall surface and cause to condense, and summer lead to it is cold
Water has effectively taken away indoor heat, reduces the load of air-supply unit.
Fresh air handling units of the invention have the interlayer that sound-absorbing material is made at fresh inlet, can reduce fresh air and enter unit
When noise, reduce indoor noise pollution.
The air outlet of Fresh air handling units of the invention is mounted with air-supply slot, and air-supply is made to become the organized air-supply in no air duct, wind
It is blown in the form of uniform flow on paper machine, improves the uniformity of heat diffusion.
Fresh air handling units of the invention, using orifice feeding, wind speed is smaller, and uniformly, space temperature variation is smaller, can stablize for air-supply
Room air distribution design is conducive to office work regional gas stream and uniformly and stably handles machine.
Present invention employs all-fresh air, full return air and fresh air and return air mix three kinds of operating conditions, and wholly fresh air can be by room
Interior pollutant discharge is outdoor, advantageously reduces harm of the pollutant to human body, full air return system and fresh air and return air hybrid system
The loss that indoor return air is effectively reduced energy is utilized, can be used for the outdoor air pollution more serious time, be conducive to people
Body health.Fresh air processing method of the invention, from the paper feed direction of paper machine to paper delivery direction, the sum of the area of all exhaust outlets is
1~1.2 times of the sum of all fresh inlet areas, the area of some exhaust outlet are the 1.1 of its adjacent upper air draft open area
~1.25 times, there is the case where smog when effectively avoiding wind discharge outdoor, improve the efficiency of workshop discharge heat.This hair
The fresh air processing method of bright middle use, the height of workshop top exhaust outlet are higher than the height of fresh inlet, effectively the row of avoiding
Indoor wind returns indoor situation out.
Detailed description of the invention
Fig. 1 is the block plan in paper mill workshop.
The schematic three dimensional views of Fig. 2 Fresh air handling units.
Fig. 3 is the side view of Fresh air handling units.
Fig. 4 is all-fresh air operating condition.
Fig. 5 is full return air operating condition.
Fig. 6 is fresh air and the operating condition that return air mixes.
Mark meaning is as follows in attached drawing: 1- upper box, 2- lower box, 3- air compartment, the new air inlet of 4-, 5- primary filter,
6- heater, 7- axial flow blower, 8- silencer, 9- outlet air orifice plate, 10- air-supply slot, 11- volume damper, 12- air return system,
13- shield, the upper maintenance door of 14-, maintenance door under 15-, 16- air compartment maintenance door, 17- exhaust outlet, the workshop 18-, the blow zones 19-,
The area 20- Zhi Ji, the exhaust zone 21-.
Specific embodiment
Below with reference to embodiment and Figure of description, the present invention is further illustrated.
It include upper box 1, lower box 2, air compartment 3 in the present embodiment.The upper box 1, lower box 2 and air compartment 3 form
Fresh air handling units be located at the centre of the non-two paper discharge machine of sleeve configuration workshop, opened up in the epicoele chamber back wall of the upper box 1
There is the fresh air air inlet 4 for fresh air outside absorption chamber, volume damper 11 is set at fresh air air inlet 4, is matched before fresh air air inlet 4
Shield 13 is had, the top of upper box 1 is provided with air return system 12, and primary filter 5, top box is arranged in the middle part of upper box 1
The lower part of body 1 is provided with the heat exchanger 6 for heating air, is provided with the sky that will be heated in the middle part of the cavity of the lower box 2
Gas is introduced into the axial flow blower 7 gone in air compartment 3, and 2 lower part of lower box, which is provided with, absorbs the noise elimination that blower operates generated noise
Device 8 has the close outlet air orifice plate 9 of arrangement on the front wall surface of the air compartment 3, setting air-supply slot 10, top box above outlet air orifice plate 9
Upper box maintenance door 14, lower box maintenance door 15, air compartment is respectively set in body 1, lower box 2 and air compartment 3 three positive cavity walls
Maintenance door 16.The non-sleeve configuration workshop 18 is divided into blow zones 19, the area Zhi Ji 20, exhaust zone 21, institute from the width direction
State non-sleeve configuration workshop 18 along longitudinal direction on side walls on or room at the top of open up exhaust outlet 17.
In a kind of preferred embodiment, the workshop width of step (1) setting is 20 meters, and it is highly 30 meters that length, which is 90 meters,
The column in the workshop is 0.7 meter in the length that workshop laterally protrudes above part, and the top surface of the Fresh air handing unit is far from workshop
The distance of ceiling is 2.2 meters, is provided with fresh inlet, the fresh inlet and machine on the workshop wall between two adjacent upright
The fresh inlet connection of group；
Step (2), along the multiple exhaust outlets of workshop longitudinal direction spaced set, owns on the ceiling above the paper machine
The sum of area of exhaust outlet is 1.1 times of the sum of all fresh inlet areas, from the paper feed direction of paper machine to paper delivery direction, air draft
Open area is gradually increased, and the area of some exhaust outlet is 1.1 times of its adjacent upper air draft open area；
Step (3) starts Fresh air handling units, and system uses the method for operation of all-fresh air.Air return system 12 is closed at this time, fresh air
100% enters fresh inlet 4 from outdoor, successively by the silencing means of 13 inside of shield, air quantity adjustment sheet 11, primarily efficient filter
Device 5, heat exchanger 6, axial flow blower 7, silencer 8 are finally sent into workshop in the outlet air orifice plate 9 of 3 antetheca of air compartment, are taken away by paper machine
Workshop is discharged from exhaust outlet in heat and steam, this kind of method of operation is suitable for the season that summer environment temperature is higher than 35 degrees Celsius,
Indoor pollutant can effectively be discharged, be conducive to human health；In another case, system uses the operation side of full return air
Formula.Air quantity adjustment sheet 11 and exhaust outlet 17 are in off state at this time, and 100% is indoor return air, successively by shield 13
The silencing means of side, air quantity adjustment sheet 11, primary filter 5, heat exchanger 6, axial flow blower 7, silencer 8 is finally before air compartment 3
The outlet air orifice plate 9 of wall is sent into workshop, takes away heat and steam by paper machine, workshop is discharged from exhaust outlet, this kind of method of operation is suitable
For winter environment temperature in subzero 5 degrees Celsius of seasons below, when outdoor pollution is more serious, outdoor fresh air is introduced to human body
Larger situation is endangered, such method of operation is conducive to human health；In another case, system is mixed using fresh air and return air
Operating condition.Air quantity adjustment sheet 11 is half-open at this time, and exhaust outlet 17 is opened, while introducing indoor return air and fresh air, is successively passed through
Cross the silencing means of 13 inside of shield, air quantity adjustment sheet 11, primary filter 5, heat exchanger 6, axial flow blower 7, silencer 8
It finally is sent into workshop in the outlet air orifice plate 9 of 3 antetheca of air compartment, takes away heat and steam by paper machine, workshop is discharged from exhaust outlet, it should
The kind method of operation is suitable for season at 35 degrees Celsius of transition season environment temperature or less to subzero 5 degrees Celsius or more, introducing portion
Point fresh air can make indoor air quality reach the desired condition of people, and because the temperature and humidity of return air is substantially close to required for
Condition, the consumption of energy can be effectively reduced.
In the another way of the embodiment, step (2) is longitudinal etc. along workshop on the ceiling above the paper machine
Multiple exhaust outlets are arranged in spacing, and the sum of area of all exhaust outlets is 1.1 times of the sum of all fresh inlet areas, from paper machine
Paper feed direction to paper delivery direction, air draft open area is gradually increased, and the area of some exhaust outlet is its adjacent upper exhaust outlet face
Long-pending 1.1 times, height of the exhaust outlet lower edge away from ground are 3.7 meters, and the height of exhaust outlet is slightly above air compartment height, can guarantee
Thermal current reach exhaust zone when be discharged fast into outdoor, measured by experiment, wind reach exhaust outlet when wind speed 2.5m/s~
2.7m/s ensure that the sense of organization of air draft compared with the mode of existing direct outlet.
In a kind of comparative example, workshop width is 44 meters, and it is highly 30 meters that length, which is 90 meters, and the width of blow zones 19 is 6
Rice, the column in the workshop are 0.7 meter in the length that workshop laterally protrudes above part, and the top surface of the Fresh air handing unit is away from vehicle
Between the distance of ceiling be 2.2 meters, be provided with fresh inlet on the workshop wall between two adjacent upright, the fresh inlet with
The fresh inlet of unit connects；Exhaust way is the unorganized exhaust of direct outlet, is not provided with the position of exhaust outlet and relatively large
It is small.It is obtained through workshop temperature measurement, when outside air temperature is 30 degrees Celsius, workshop temperature is at 26~42 degrees Celsius, the temperature in workshop
Difference is larger, is unfavorable for production.And workshop temperature can be made by the arrangement of position and size to exhaust outlet in the present invention
It is maintained between 26~36 degrees Celsius, effectively reduces the heat in workshop, improve the diffuser efficiency of heat.
In a kind of preferred embodiment, the workshop width of step (1) setting is 15 meters, and it is highly 26 meters that length, which is 60 meters,
The column in the workshop is 0.45 meter in the length that workshop laterally protrudes above part, and the top surface of the Fresh air handing unit is far from workshop
The distance of ceiling is 1.5 meters, is provided with fresh inlet, the fresh inlet and machine on the workshop wall between two adjacent upright
The fresh inlet connection of group；
Step (2), along the multiple exhaust outlets of workshop longitudinal direction spaced set, owns on the ceiling above the paper machine
The sum of area of exhaust outlet is 1.2 times of the sum of all fresh inlet areas, from the paper feed direction of paper machine to paper delivery direction, air draft
Open area is gradually increased, and the area of some exhaust outlet is 1.2 times of its adjacent upper air draft open area；
Step (3) starts Fresh air handling units, and system uses the method for operation of all-fresh air.Air return system 12 is closed at this time, fresh air
100% enters fresh inlet 4 from outdoor, this kind of method of operation is suitable for the season that summer environment temperature is higher than 35 degrees Celsius, energy
It is enough that indoor pollutant is effectively discharged, be conducive to human health；In another case, system uses the operation side of full return air
Formula.Air quantity adjustment sheet 11 and exhaust outlet 17 are in off state at this time, and 100% is indoor return air, this kind of operating condition is suitable for winter
Environment temperature is in subzero 5 degrees Celsius of seasons below, and when outdoor pollution is more serious, it is larger to introduce outdoor fresh air harm to the human body
The case where, such method of operation is conducive to human health；In another case, the operation work that system is mixed using fresh air and return air
Condition.Air quantity adjustment sheet 11 is half-open at this time, and exhaust outlet 17 is opened, while introducing indoor return air and fresh air, this kind of operating condition is suitable for
Season at 35 degrees Celsius of transition season environment temperature or less to subzero 5 degrees Celsius or more, introducing portion fresh air can make interior
Air quality reaches the desired condition of people, and because of the temperature and humidity of return air condition substantially close to required for, can be effective
Reduction energy consumption.
In the another way of the embodiment, step (2) is longitudinal etc. along workshop on the ceiling above the paper machine
Multiple exhaust outlets are arranged in spacing, and the sum of area of all exhaust outlets is 1.2 times of the sum of all fresh inlet areas, from paper machine
Paper feed direction to paper delivery direction, air draft open area is gradually increased, and the area of some exhaust outlet is its adjacent upper exhaust outlet face
Long-pending 1.2 times, height of the exhaust outlet lower edge away from ground are 3.7 meters, and the height of exhaust outlet is slightly above air compartment height, can guarantee
Thermal current reach exhaust zone when be discharged fast into outdoor, measured by experiment, wind reach exhaust outlet when wind speed 2.6m/s~
2.8m/s ensure that the sense of organization of air draft compared with the mode of existing direct outlet.
In a kind of comparative example, workshop width is 36 meters, and it is highly 30 meters, the column in the workshop is in vehicle that length, which is 62 meters,
Between laterally to protrude above the length of part be 0.7 meter, the top surface of the Fresh air handing unit is 2.2 far from the distance of workshop ceiling
Meter, fresh inlet, the fresh inlet connection of the fresh inlet and unit are provided on the workshop wall between two adjacent upright；
Exhaust way is the unorganized exhaust of direct outlet, is not provided with position and the relative size of exhaust outlet.It is measured through workshop temperature
It arrives, when outside air temperature is 30 degrees Celsius, for workshop temperature at 25~38 degrees Celsius, the temperature difference in workshop is larger, is unfavorable for product
Production.And workshop temperature can be made to be maintained at 25~32 Celsius by the arrangement of position and size to exhaust outlet in the present invention
Between degree, the heat in workshop is effectively reduced, improves the diffuser efficiency of heat.
In a kind of preferred embodiment, the workshop width of step (1) setting is 25 meters, and it is highly 50 meters that length, which is 125 meters,
The column in the workshop is 1 meter in the length that workshop laterally protrudes above part, and the top surface of the Fresh air handing unit is far from workshop day
The distance of card is 3 meters, is provided with fresh inlet on the workshop wall between two adjacent upright, the fresh inlet and unit
Fresh inlet connection；
Step (2), along the multiple exhaust outlets of workshop longitudinal direction spaced set, owns on the ceiling above the paper machine
The sum of area of exhaust outlet is 1.25 times of the sum of all fresh inlet areas, from the paper feed direction of paper machine to paper delivery direction, row
Vent area is gradually increased, and the area of some exhaust outlet is 1.25 times of its adjacent upper air draft open area；
Step (3) starts Fresh air handling units, and system uses the method for operation of all-fresh air.Air return system 12 is closed at this time, fresh air
100% enters fresh inlet 4 from outdoor, this kind of method of operation is suitable for the season that summer environment temperature is higher than 35 degrees Celsius, energy
It is enough that indoor pollutant is effectively discharged, be conducive to human health；In another case, system uses the operation side of full return air
Formula.Air quantity adjustment sheet 11 and exhaust outlet 17 are in off state at this time, and 100% is indoor return air, this kind of operating condition is suitable for winter
Environment temperature is in subzero 5 degrees Celsius of seasons below, and when outdoor pollution is more serious, it is larger to introduce outdoor fresh air harm to the human body
The case where, such method of operation is conducive to human health；In another case, the operation work that system is mixed using fresh air and return air
Condition.Air quantity adjustment sheet 11 is half-open at this time, and exhaust outlet 17 is opened, while introducing indoor return air and fresh air, this kind of operating condition is suitable for
Season at 35 degrees Celsius of transition season environment temperature or less to subzero 5 degrees Celsius or more, introducing portion fresh air can make interior
Air quality reaches the desired condition of people, and because of the temperature and humidity of return air condition substantially close to required for, can be effective
Reduction energy consumption.
In the another way of the embodiment, step (2) is longitudinal etc. along workshop on the ceiling above the paper machine
Multiple exhaust outlets are arranged in spacing, and the sum of area of all exhaust outlets is 1.2 times of the sum of all fresh inlet areas, from paper machine
Paper feed direction to paper delivery direction, air draft open area is gradually increased, and the area of some exhaust outlet is its adjacent upper exhaust outlet face
Long-pending 1.2 times, height of the exhaust outlet lower edge away from ground are 3.7 meters, and the height of exhaust outlet is slightly above air compartment height, can guarantee
Thermal current reach exhaust zone when be discharged fast into outdoor, measured by experiment, wind reach exhaust outlet when wind speed 2.5m/s~
2.7m/s ensure that the sense of organization of air draft compared with the mode of existing direct outlet.
In a kind of comparative example, workshop width is 52 meters, and it is highly 30 meters, the column in the workshop is in vehicle that length, which is 120 meters,
Between laterally to protrude above the length of part be 0.9 meter, the top surface of the Fresh air handing unit is 2.9 far from the distance of workshop ceiling
Meter, fresh inlet, the fresh inlet connection of the fresh inlet and unit are provided on the workshop wall between two adjacent upright；
Exhaust way is the unorganized exhaust of direct outlet, is not provided with position and the relative size of exhaust outlet.It is measured through workshop temperature
It arrives, when outside air temperature is 30 degrees Celsius, for workshop temperature at 27~39 degrees Celsius, the temperature difference in workshop is larger, is unfavorable for product
Production.And workshop temperature can be made to be maintained at 26~33 Celsius by the arrangement of position and size to exhaust outlet in the present invention
Between degree, the heat in workshop is effectively reduced, improves the diffuser efficiency of heat.
In a kind of preferred embodiment, the height of air compartment 3 is 3.4 meters, and the air-supply slot 10 of 3 top of air compartment blows out 6.8m/s's
Wind, the air-supply slot use adjustable apparatus, change wind direction within the scope of -75 °~75 ° by continuous rotation (horizontal
Direction is 0 °).When winter send hot wind, thermal current actively rises, and wind direction is lowered within the scope of -75 °~0 °；Summer is sent cold
When wind, wind direction is raised at 0 °~75 °.It is uniformly steady that air-supply air current composition is advantageously implemented by adjusting air-supply slot wind direction
It is fixed.Compared with existing air-supply slot, existing air-supply slot is horizontal direction, and thermal current rises very fast when summer, is obtained through measurement,
Orifice plate blow into 3~4 meters of paper machine of distance, cold air is mixed with indoor hot-air in transmission process and do not blown on paper machine
Just it is directly entered in air, energy is lossy, and capacity usage ratio reduces, effective by the adjusting to the air-supply angle of the v-groove in the present invention
The utilization rate for improving cooling capacity.
In a kind of preferred embodiment, the front of air compartment 3 opens up balanced ventilation orifice plate 9 and blows, wind speed 3.4m/s, wind
Speed is smaller, and the punching rate of the air-supply orifice plate is 15%, and uniformly, space temperature variation is smaller for air-supply, can stablize Room air distribution design,
Air compartment height is 3.4 meters, and air-supply slot is offered above air compartment, and air-supply slot blows out the wind of 6.8m/s, what air-supply slot and orifice plate were sent out
There are speed difference between wind, the wind that this speed difference can guarantee that orifice plate is sent out all is blown on paper machine, is obtained through experiment, is blown to paper
Wind on machine can be maintained at the wind speed of 2.9m/s~3.2m/s, air-supply air-flow can uniformly and stably to paper machine region at
Reason.
In a kind of preferred embodiment, shield 15 is set at the fresh inlet 4 of Fresh air handing unit upper box 1, it is described anti-
Circular opening is arranged on the inner wall of shield, aperture is about 8~10mm, and percent opening is about 10%~20%, is pressed from both sides in inner wall and outer wall
Layer filling sound-absorbing material, constitutes sound arrester.It is measured by experiment, does not open up quieter material phase in shield with existing
Than the noise of 60dB (A) can be reduced at fresh inlet, and the circular opening arranged on shield inner wall can absorb not
The noise of same frequency is measured through experiment, when the percent opening of circular opening is 2%, noise decrease 37%, when percent opening is 10%
When, noise decrease 63%, when percent opening is 15%, noise decrease 80%, when percent opening is 20%, noise decrease 69%,
But when percent opening is greater than 30%, sound-absorbing effect is just no longer obvious.
In a kind of preferred embodiment, 6 internal coil of Fresh air handing unit heat exchanger and fin use copper pipe and aluminium foil
Fin combination, aluminium foil is hydrophilic aluminium foil, with a thickness of 0.5mm or more.Condensed water can dissipate rapidly on hydrophilic aluminium foil in the present invention
It opens without condensing into droplet, increases heat exchange area, can effectively avoid noise of the condensed water because hindering air flowing generation, and
And under the operating condition of not water flowing, the hydrophilic film on aluminium foil can effectively reduce indoor alkalescent gas and contact with aluminium flake and to aluminium flake
It causes to corrode, has the effect of anticorrosion, mould proof, through testing, under same environmental conditions, the fin for not covering hydrophilic film is only capable of
Using 12 months, cover hydrophilic film 0.1mm aluminum fin-stock can use about 36 months, and cover hydrophilic film 0.5mm aluminum fin-stock use when
Between can reach 60 months or more.
Above-described embodiment is only the preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill of the art
For personnel, without departing from the principle of the present invention, several improvement and equivalent replacement can also be made, these are to the present invention
Claim improve with the technical solution after equivalent replacement, each fall within protection scope of the present invention.
Claims (10)
1. a kind of fresh air processing method in non-sleeve configuration paper mill workshop, which is characterized in that method includes the following steps:
(1) setting width is 2D, and it is highly the paper mill workshop of 1.5D~2D that length, which is 4D~5D, the parallel setting in the middle part of workshop
Two rows of longitudinal papermaking units, every row's papermaking unit include an at least paper machine, are carried on the back in the intermediate arrangement two rows of two paper discharge machines
To the Fresh air handling units of back arrangement, the top surface of Fresh air handing unit is 10%~12%D, unit epicoele far from the distance of workshop ceiling
Fresh inlet is arranged in back, opens up fresh inlet, the top evidence of the fresh inlet from the workshop ceiling on Fresh air handling units top
The distance on workshop roof is 1.25%D, is connected by the fresh inlet of pipeline and Fresh air handling units to unit blasting air；
(2) exhaust outlet in paper mill workshop is set by one of the following two kinds mode:
A) on the ceiling above the paper machine, along the multiple exhaust outlets of workshop longitudinal direction spaced set, all exhaust outlets
The sum of area is 1~1.2 times of the sum of all fresh inlet areas, from the paper feed direction of paper machine to paper delivery direction, exhaust outlet face
Product is gradually increased, and the area of some exhaust outlet is 1.1~1.25 times of its adjacent upper air draft open area, the exhaust outlet
Top is 10%D according to the distance on workshop roof；
B) on two sides of paper mill workshop longitudinal direction, on the wall between two adjacent upright be arranged lower edge height be D~
The exhaust outlet of 1.2D, the sum of area of all exhaust outlets be 1~1.2 times of the sum of all fresh inlet areas, from paper machine into
Paper direction to paper delivery direction, air draft open area are gradually increased, and the area of some exhaust outlet is its adjacent upper air draft open area
1.1~1.25 times；
(3) start Fresh air handling units, run by one of following three kinds of modes:
A) summer uses the method for operation of all-fresh air；
B) transition season uses the method for operation of fresh air return air mixing；
C) winter uses the method for operation of full return air.
2. the fresh air processing method in non-sleeve configuration paper mill workshop according to claim 1, it is characterised in that: the step
(3) in, the season that summer environment temperature is 35 degrees Celsius or more, transition season is 35 degrees Celsius of environment temperature or less and arrives subzero 5
Degree Celsius or more season, winter be environment temperature subzero 5 degrees Celsius of seasons below.
3. the fresh air processing method in non-sleeve configuration paper mill workshop according to claim 1, it is characterised in that: the fresh air
Unit includes the upper box (1), lower box (2) and air compartment (3) for setting gradually and being connected to from top to bottom, in the upper box (1)
Portion is provided with the primary filter (5) for being divided into epicoele and cavity of resorption, and the bottom of the cavity of resorption is arranged side by side, and there are two heat exchange
Device (6) is arranged side by side in the middle part of the lower box (2) there are two axial flow blower (7), described two axial flow blowers (7) respectively with its
One heat exchanger (6) of top is correspondingly arranged, and lower box (2) bottom is provided with silencer (8), and the back side of the epicoele is provided with
Fresh air air inlet (4) and the shield (15) external positioned at the fresh air air inlet (4) for outside air to be passed through, it is described
The air-supply current equalizer positioned at front wall surface and the air-supply slot above the air-supply current equalizer are provided on air compartment (3)
(10)。
4. the fresh air processing method in non-sleeve configuration paper mill workshop according to claim 3, which is characterized in that the heat exchange
The fin for including coil pipe in device (6) and being arranged on the coil pipe, the fin are hydrophilic aluminium foil fin.
5. the fresh air processing method in non-sleeve configuration paper mill workshop according to claim 3, which is characterized in that the epicoele
Top be provided with air return system (14), be provided with volume damper on the fresh air air inlet (4).
6. the fresh air processing method in non-sleeve configuration paper mill workshop according to claim 3, which is characterized in that the air-supply
Current equalizer is made of air-supply orifice plate (9).
7. the fresh air processing method in non-sleeve configuration paper mill workshop according to claim 6, which is characterized in that the air-supply
Orifice plate (9) punching rate is 15%.
8. the fresh air processing method in non-sleeve configuration paper mill workshop according to claim 3, which is characterized in that the protection
Inner wall, the setting interlayer made of sound-absorbing material between the outer wall and inner wall that cover includes outer wall, is provided with aperture.
9. the fresh air processing method in non-sleeve configuration paper mill workshop according to claim 8, which is characterized in that the inner wall
On be provided with circular opening, the percent opening of inner wall is 10%~20%.
10. the according to claim 1, fresh air processing method in non-sleeve configuration paper mill workshop described in 2,3,4,5,6,7,8 or 9,
It is characterized in that, the detailed process of the all-fresh air processing mode in the step (3) are as follows: air return system (12) is closed, fresh air
100% enters fresh inlet (4) from outdoor, successively by the silencing means on the inside of shield (13), air quantity adjustment sheet (11), just
It imitates filter (5), heat exchanger (6), axial flow blower (7), silencer (8) is finally sent in the outlet air orifice plate (9) of air compartment (3) antetheca
Enter workshop, take away heat and steam by paper machine, workshop is discharged from exhaust outlet；
The detailed process of fresh air return air mixed processing mode in the step (3) are as follows: air quantity adjustment sheet (11) is half-open, air draft
Mouth (17) is opened, while introducing indoor return air and fresh air, successively passes through primary filter (5) after two kinds of wind mixing, heat exchanger
(6), axial flow blower (7), silencer (8) are finally blown into workshop in the outlet air orifice plate (9) of air compartment (3) antetheca, by paper machine part
Wind by exhaust outlet (17) arrange workshop top is partially risen to outdoor after by unit top air return system (12) enter fresh air
Unit；
The detailed process of full return air processing mode in the step (3) are as follows: air quantity adjustment sheet (11) and exhaust outlet (17) are
Closed state, 100% is indoor return air, enters Fresh air handling units by air return system (12), successively passes through primary filter (5),
Heat exchanger (6), axial flow blower (7), silencer (8) are finally blown into workshop in the outlet air orifice plate (9) of air compartment (3) antetheca, by paper
Machine takes away heat and steam, and hot-air rises to workshop top, is finally returned to again by the air return system (12) on Fresh air handling units top
Unit.
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| CN201910485223.4A CN110220262A (en) | 2019-06-04 | 2019-06-04 | A kind of fresh air processing method in non-sleeve configuration paper mill workshop |
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Application publication date: 20190910 |