CN207808752U - A kind of LEL checkings enrichment hot air apparatus - Google Patents
A kind of LEL checkings enrichment hot air apparatus Download PDFInfo
- Publication number
- CN207808752U CN207808752U CN201721794592.4U CN201721794592U CN207808752U CN 207808752 U CN207808752 U CN 207808752U CN 201721794592 U CN201721794592 U CN 201721794592U CN 207808752 U CN207808752 U CN 207808752U
- Authority
- CN
- China
- Prior art keywords
- air
- lel
- waste discharge
- checkings
- baking oven
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
Abstract
The utility model discloses a kind of LEL checkings enrichment hot air apparatus, including multiple print couples, each print couple includes a baking oven, it is provided with ink tank below baking oven, air inlet and air outlet are provided on baking oven, ground exhaust duct is connected on ink tank, the ground exhaust duct other end is connected with return air threeway, air outlet is connect by wind pipe with ground exhaust duct, return air threeway is also associated with hot water heat exchanger, hot water heat exchanger is connected with circulating fan, and circulating fan is connect by intake stack with air inlet, and all return air threeways are also connected with a main waste discharge pipeline jointly.A kind of LEL checkings enrichment hot air apparatus of the utility model solves the problems, such as that workshop condition existing in the prior art is poor.
Description
Technical field
The utility model belongs to printing machine hot air apparatus technical field, is related to a kind of LEL checkings enrichment hot air apparatus.
Background technology
Packages printing industry is needed largely in process of production using the diluent of ink and adjustment ink viscosity.It is printing
When product are dried, ink can discharge largely organic containing volatility such as benzene,toluene,xylene, ethyl acetate, isopropanols with diluent
The industrial waste gas of substance (VOCs).Under current environmental protection policy pressure, the processing of printing exhaust gas VOCs has been very urgent.Packaging
The Drainage feature of printing industry VOCs is that air quantity is big, and concentration is low, no matter if waste discharge amount cannot be reduced, and increases waste discharge concentration
The problems such as taking which kind of processing mode to all suffer from huge equipment investment and high maintenance cost, while Wind Volume is with temperature
The discharge of the organic exhaust gas of degree means large-scale energy consumption.Although each producer is to improve workshop condition increasing workshop has also been made
The trial of air draft draught capacity, but without being disposed for the high concentration region of part, because without significantly improving work
The air quality in place.
In conclusion the processing of existing printing exhaust gas is faced with the problem that waste discharge amount is big and concentration is low always, therefore having must
It to be directed to this problem and develop a kind of simple and effective checking enrichment hot air apparatus, help manufacturer to carry out printing exhaust gas checking and increase
The hot cost of use that is dense and improving workshop condition, while reducing equipment, to achieve energy-saving and emission reduction purposes.
Utility model content
The purpose of this utility model is to provide a kind of LEL checkings enrichment hot air apparatus, solves existing in the prior art
The problem of workshop condition difference.
The utility model is the technical scheme adopted is that a kind of LEL checkings enrichment hot air apparatus, including multiple process colors
Group, each print couple include a baking oven, are provided with ink tank below baking oven, air inlet and air outlet are provided on baking oven, ink
Ground exhaust duct is connected on slot, the ground exhaust duct other end is connected with return air threeway, and air outlet is arranged by wind pipe and ground
Wind pipeline connects, and return air threeway is also associated with hot water heat exchanger, and hot water heat exchanger is connected with circulating fan, circulating fan by into
Wind pipeline is connect with air inlet, and all return air threeways are also connected with a main waste discharge pipeline jointly.
Ground exhaust duct is equipped with hand_pneumatic valve close to one end of ink tank.
Return air Electric air valve is also associated between return air threeway and hot water heat exchanger.
It is also equipped with waste discharge Electric air valve and check-valves between return air threeway and main waste discharge pipeline.
Main waste discharge pipeline one end is closed, and the other end is connected with main waste discharge blower fan.
Main waste discharge pipeline is additionally provided with pressure sensor and LEL concentration detectors close to one end of main waste discharge blower fan.
The utility model has the beneficial effects that：The utility model by disordered exhaust gas near ink tank by being inhaled into ground air draft
Pipeline is mixed with baking oven exhaust gas, and a part of exhaust gas progress secondary cycle is passed sequentially through hot water heat exchange by return air threeway
Device 9, circulating fan 1 are again introduced into baking oven 3, and a part enters main waste pipe road 12, and monochromatic waste discharge amount is equal to ground air draft and baking oven
The sum of suction air volume realizes checking enrichment, while effectively improving workshop condition.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the single print couple of LEL checkings enrichment hot air apparatus；
Fig. 2 is a kind of structural schematic diagram of LEL checkings enrichment hot air apparatus.
In figure, 1. circulating fans, 2. intake stacks, 3. baking ovens, 4. wind pipes, 5. ground exhaust ducts, 6. ground air draft hands
Dynamic valve, 7. return air threeways, 8. return air Electric air valves, 9. heat exchangers, 10. waste discharge Electric air valves, 11. check-valves, 12. main waste pipes
Road, 13. pressure sensors, 14.LEL concentration detectors, 15. main waste discharge blower fans, 16. ink tanks, 17. air inlets, 18. air outlets,
19. roller.
Specific implementation mode
The utility model is described in detail with reference to the accompanying drawings and detailed description.
A kind of LEL checkings enrichment hot air apparatus of the utility model, as shown in Figure 1, include multiple print couples, it is each to print
Colour cell includes a baking oven 3, and 3 lower section of baking oven is provided with ink tank 16, air inlet 17 and air outlet 18, ink tank are provided on baking oven 3
Ground exhaust duct 5 is connected on 16, exhaust duct 5 other end in ground is connected with return air threeway 7, and air outlet 18 passes through wind pipe 4
It is connect with ground exhaust duct 5, return air threeway 7 is also associated with hot water heat exchanger 9, and hot water heat exchanger 9 is connected with circulating fan 1, follows
Ring wind turbine 1 is connect by intake stack 2 with air inlet 17, and all return air threeways 7 are also connected with a main waste discharge pipeline 12 jointly.
Ground exhaust duct 5 is equipped with hand_pneumatic valve 6 close to one end of ink tank 16.
Return air Electric air valve 8 is also associated between return air threeway 7 and hot water heat exchanger 9.
It is also equipped with waste discharge Electric air valve 10 and check-valves 11 between return air threeway 7 and main waste discharge pipeline 12.
Main 12 one end of waste discharge pipeline closing, the other end are connected with main waste discharge blower fan 15.
Main waste discharge pipeline 12 is additionally provided with pressure sensor 13 and LEL concentration detectors close to one end of main waste discharge blower fan 15
14。
The utility model therefore is arranged in view of the presence of the organic exhaust gas of high concentration near print zone ink tank on ink tank 16
Ground exhaust duct 5 collects the disordered exhaust gas near ink tank.
The utility model is entered after the exhaust gas of every color hot wind enters main waste pipe road 12 by main waste discharge blower fan 15 next
Treatment process is equipped with pressure sensor 13 and LEL concentration detectors 14, it is ensured that pipeline maintains always before main waste discharge blower fan 15
Negative pressure state, and ensure exhaust gas concentration in 25%LEL or less.
A kind of operation principle of LEL checkings enrichment hot air apparatus of the utility model is：
Under printing equipment normal operating conditions, as shown in Fig. 2, printing element normally prints, air draft Electric air valve 10 closes
It closes, 8 standard-sized sheet of return air Electric air valve, hand_pneumatic valve 6 is fully closed, and circulating fan 1, baking oven 3, hot water heat exchanger 9 pass through discharge pipe at this time
Road 4, exhaust duct 5, intake stack 2 constitute a closed-loop system, in the case of pipe-line system good seal, baking oven 3 was both
It does not leak out, also not air draught.
Then air draft Electric air valve 10 is adjusted and arrives certain aperture, since main waste discharge pipeline 12 is in negative pressure state, in master
Under the action of waste discharge blower fan 15, the exhaust gas of certain flow can be drawn into main waste discharge pipeline 12, to maintain exhaust gas flow in pipeline flat
Weighing apparatus, at this time baking oven 3 must be pumped into fresh air from workshop, adjustably air draft hand_pneumatic valve 6 is to suitable position at this time, the neighbouring nothing of ink tank
Tissue exhaust gas is inhaled into ground exhaust duct 5 and is mixed with baking oven exhaust gas, and by return air threeway 7, a part of secondary cycle is successively
It is again introduced into baking oven 3 by hot water heat exchanger 9, circulating fan 1, a part enters main waste pipe road 12, and monochromatic waste discharge amount is equal to
The sum of ground air draft and baking oven suction air volume.
In addition it is equipped with signal controller at roller 19 and is connect with waste discharge Electric air valve 10, when 19 combined pressure of roller, row
Useless Electric air valve 10 is opened to setting aperture, when roller tripping, closes waste discharge Electric air valve 10, to avoid the printing of this color single
Member enters main waste pipe road 12 in non-printing state without concentration gases.Before entering main waste pipe road 12 per the exhaust gas of color hot wind,
Equipped with check-valves 11, in order to prevent main 12 gas of waste discharge pipeline from pouring in down a chimney, cause workshop peculiar smell excessive.
It is assumed that 3 negative pressure of baking oven is -100Pa, 3000m3The gas of/h air quantity is by baking oven wind pipe 4 until return air threeway
At 7, this section of flow pressure drop is about 400Pa, then the pressure at the threeway is -500Pa；Therefore the pressure of main waste discharge pipeline 12 is wanted
Less than -500Pa, it is set as≤- 700Pa herein, main 12 negative pressure of waste discharge pipeline is detected by pressure sensor 13, foundation
LEL concentration detectors 14 detect numerical value and adjust pipe negative pressure to desired value to control the frequency of main waste discharge blower fan 15, and according to
Aperture of the printing area reasonable set per waste discharge Electric air valve 10 of the same colour, is finally reached the effect of checking enrichment.
Claims (6)
1. a kind of LEL checkings enrichment hot air apparatus, which is characterized in that including multiple print couples, each print couple includes
One baking oven (3), baking oven (3) lower section are provided with ink tank (16), air inlet (17) and air outlet are provided on the baking oven (3)
(18), ground exhaust duct (5) is connected on the ink tank (16), described ground exhaust duct (5) other end is connected with return air threeway
(7), the air outlet (18) is connect by wind pipe (4) with described ground exhaust duct (5), and the return air threeway (7) also connects
It is connected to hot water heat exchanger (9), the hot water heat exchanger (9) is connected with circulating fan (1), and the circulating fan (1) passes through air inlet
Pipeline (2) is connect with air inlet (17), and all return air threeways (7) are also connected with a main waste discharge pipeline (12) jointly.
2. a kind of LEL checkings enrichment hot air apparatus according to claim 1, which is characterized in that described ground exhaust duct (5)
It is equipped with hand_pneumatic valve (6) close to one end of ink tank (16).
3. a kind of LEL checkings enrichment hot air apparatus according to claim 1, which is characterized in that the return air threeway (7) with
Return air Electric air valve (8) is also associated between hot water heat exchanger (9).
4. a kind of LEL checkings enrichment hot air apparatus according to claim 1, which is characterized in that the return air threeway (7) with
It is also equipped with waste discharge Electric air valve (10) and check-valves (11) between main waste discharge pipeline (12).
5. a kind of LEL checkings enrichment hot air apparatus according to any one of claims 1-4, which is characterized in that the master
Waste discharge pipeline (12) one end is closed, and the other end is connected with main waste discharge blower fan (15).
6. a kind of LEL checkings enrichment hot air apparatus according to claim 5, which is characterized in that the main waste discharge pipeline
(12) pressure sensor (13) and LEL concentration detectors (14) are additionally provided with close to one end of main waste discharge blower fan (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721794592.4U CN207808752U (en) | 2017-12-20 | 2017-12-20 | A kind of LEL checkings enrichment hot air apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721794592.4U CN207808752U (en) | 2017-12-20 | 2017-12-20 | A kind of LEL checkings enrichment hot air apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207808752U true CN207808752U (en) | 2018-09-04 |
Family
ID=63332967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721794592.4U Active CN207808752U (en) | 2017-12-20 | 2017-12-20 | A kind of LEL checkings enrichment hot air apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207808752U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110793309A (en) * | 2019-12-09 | 2020-02-14 | 江阴市汇通印刷包装机械有限公司 | Printing compounding machine air-reducing thickening system |
| CN112706518A (en) * | 2020-12-25 | 2021-04-27 | 杨凌昱昌环境科技有限公司 | Printing color set air-reducing and thickening interlocking control device of printing machine |
-
2017
- 2017-12-20 CN CN201721794592.4U patent/CN207808752U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110793309A (en) * | 2019-12-09 | 2020-02-14 | 江阴市汇通印刷包装机械有限公司 | Printing compounding machine air-reducing thickening system |
| CN112706518A (en) * | 2020-12-25 | 2021-04-27 | 杨凌昱昌环境科技有限公司 | Printing color set air-reducing and thickening interlocking control device of printing machine |
| CN112706518B (en) * | 2020-12-25 | 2024-05-17 | 杨凌昱昌环境科技有限公司 | Linkage control device for wind-reducing and thickening of printing color group of printing machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107931297B (en) | VOCs treatment equipment for printing machine | |
| JP6775031B2 (en) | Balanced drying system | |
| CN207808752U (en) | A kind of LEL checkings enrichment hot air apparatus | |
| CN201214303Y (en) | Full-automatic circulation drying device | |
| CN106288671A (en) | A kind of crosswind type cabin Wood drying apparatus and drying means | |
| CN107020798A (en) | A kind of energy-saving printing drying system | |
| CN107899888A (en) | A kind of VOCs processing units for being used for accurate coating apparatus | |
| CN203792859U (en) | Electric-blowing-drying-type high-efficiency and energy-saving web gravure printing machine | |
| CN205058828U (en) | Heat exchange device for lithography apparatus | |
| CN206718712U (en) | Intaglio press air circulation system | |
| CN207014964U (en) | Intaglio printing drying unit | |
| CN207808751U (en) | A kind of simple checking enrichment hot air apparatus | |
| CN206862062U (en) | A kind of energy-saving dry kiln | |
| CN109016824A (en) | Furnace drying method and drying system suitable for intaglio printing | |
| CN205097686U (en) | Energy -conserving stoving heating device who is applied to gravure press and answers a pager's call futilely | |
| CN101744046A (en) | High humidity grain dryer | |
| CN108224930B (en) | Hot air drying system of single-circulation fan | |
| CN207197138U (en) | Single cycle blower fan hot air drying system | |
| CN205980590U (en) | Side fan type ship cabin wood drying device | |
| CN207805904U (en) | VOCs processing units suitable for accurate coating apparatus | |
| CN201505628U (en) | Machine set generating cabinet in paint baking room | |
| CN211977072U (en) | Glass fiber twisting machine drying system | |
| CN203600771U (en) | Energy-saving drying device for printing press | |
| CN208019112U (en) | VOCs processing equipments suitable for printing machine | |
| CN209616621U (en) | A kind of gravure baking oven |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |