CN202692648U - High-efficiency and energy-saving multi-temperature-zone drying tunnel - Google Patents
High-efficiency and energy-saving multi-temperature-zone drying tunnel Download PDFInfo
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- CN202692648U CN202692648U CN2012203467040U CN201220346704U CN202692648U CN 202692648 U CN202692648 U CN 202692648U CN 2012203467040 U CN2012203467040 U CN 2012203467040U CN 201220346704 U CN201220346704 U CN 201220346704U CN 202692648 U CN202692648 U CN 202692648U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
A high-efficiency and energy-saving multi-temperature-zone drying tunnel comprises a heating furnace, a first burner, a plurality of upstream afterheat recycling units, a temperature feedback unit and a downstream afterheat recycling unit, wherein the heating furnace is provided with a plurality of temperature zones; the first burner is used for providing heat source gas for the multi-temperature-zone drying tunnel; the upstream afterheat recycling units are used for realizing heat exchange between partitioned air inlet tubes of the temperature zones and an exhaust tube of the first burner respectively and are serially connected with one another; the temperature feedback unit is used for inducing temperature changes in the temperature zones and then controls the delivery direction of gas in the exhaust tube of the first burner; and the downstream afterheat recycling unit is serially connected to the exhaust tube of the first burner and is used for heat exchange with a winter heating pipeline of an air conditioner system. Afterheat of exhaust tubes in the temperature zones can be recycled, the heat of the gas in the exhaust tube of the first burner can be recycled layer by layer, resources of afterheat discharged in a production process can be sufficiently utilized, and the temperature of gas finally discharged into an outdoor environment is lower than 50 DEG C. By widely popularizing the high-efficiency and energy-saving multi-temperature-zone drying tunnel, global warming can be prevented from being deteriorated. The high-efficiency and energy-saving multi-temperature-zone drying tunnel belongs to a novel energy-saving and environment-friendly technology.
Description
Technical field
The utility model belongs to the finishing line apparatus field, particularly a kind of energy-conserving and environment-protective heating furnace for sprayed product is dried.
Background technology
In the prior art, the end of finishing line can arrange drying tunnel usually, and the paint on the sprayed product is cured.Common drying tunnel is subregion not usually, it places heating clamber by or inside outside at drying tunnel, a stainless steel inner container is put in the inside, burner in the inner bag ejection diesel oil and air mixture in the stainless steel inner container internal-combustion, stainless steel inner container is burnt heat, then utilize the blower fan impeller at air outlet, the heated air band blast pipe wind band that will contact with inner bladder outer wall heats drying tunnel, drying tunnel inside by airduct wind band again.So in heating process, produce heat by burner and will carry out the second heat exchange to drying tunnel, baking oven intensification, once occur in heating clamber inside, once occur in the drying tunnel baking oven.This mode of heating technology maturation, safe and practical, be general mode of heating in the present industrial coating equipment.But this kind second heat exchange mode of heating because a large amount of high-temp waste gas will directly be discharged by the heating clamber exhaust opening, has not only caused certain energy loss when long time continuous working, energy utilization rate is low, and a large amount of greenhouse gas emission pollutes the environment.
Summary of the invention
The purpose of this utility model provides a kind of many warm areas of high-efficient energy-saving environment friendly drying tunnel that can take full advantage of waste gas residual heat.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of high-efficient energy-saving multi-temperature district drying tunnel, it comprises
Heating furnace, inside have a plurality of warm areas, and the temperature of each described warm area is different, and each described warm area all has divisional air admission pipe and subregion blast pipe;
The first combustor, for described drying tunnel provides thermal source gas, described the first combustor has blast pipe and the air inlet pipe that links to each other with the blast pipe of each subregion respectively;
The waste heat recovery unit, upstream that a plurality of series connection arrange, the air inlet pipe that is used for each warm area is carried out heat exchange with the blast pipe of described the first combustor respectively, waste heat recovery unit, described upstream comprises hot gases tube and the heat exchanger that is arranged in parallel on the blast pipe of described the first combustor, the air inlet pipe of described hot gases tube and one of them warm area has respectively part to pass described heat exchanger, and waste heat recovery unit, a plurality of described upstream is arranged on the blast pipe of described the first combustor according to the temperature of coupled warm area from high to low successively;
The temperature feedback unit comprises the heat sensor that is arranged in each described warm area, the attemperator that links to each other with described heat sensor signal;
Series connection is provided with a plurality of the first electric adjustable air-valves on the blast pipe of described the first combustor, be in series with the second electric adjustable air-valve on the hot gases tube of each waste heat recovery unit, described upstream, and described hot gases tube is connected in parallel on the two ends of described the first electric adjustable air-valve, described attemperator respectively with described the first electric adjustable air-valve be connected electric adjustable air-valve signal and be connected;
When the temperature in the described warm area was in the design temperature scope, described attemperator was opened described the first electric adjustable air-valve, closed described the second electric adjustable air-valve; When the temperature in the described warm area was lower than the design temperature scope, described attemperator was opened described the second electric adjustable air-valve, closed described the first electric adjustable air-valve.。
In the preferred version, described heating furnace comprises three warm areas.
In the preferred version, described high-efficient energy-saving multi-temperature district drying tunnel also comprises preheating furnace and the second combustor that is arranged on described heating furnace upstream, described preheating furnace has the first blast pipe and first row airduct, and the first blast pipe of described preheating furnace links to each other with the second blast pipe with the second row airduct of described the second combustor respectively with the first row airduct.
In the preferred version, also be in series with on the blast pipe of described the first combustor for the waste heat recovery unit, downstream that carries out heat exchange with air-conditioning system heat supply in winter pipeline, waste heat recovery unit, described downstream is positioned at the downstream of described upstream recovery unit.
Related content in the technique scheme is explained as follows:
The utility model operation principle is:
Sprayed product is carried out paint curing in heating furnace, furnace gas is divided into multi-region circulation, and each is distinguished temperature and rises gradually from entrance to the outlet temperature of heating furnace.Hot gas in the heating furnace is discharged in each warm area blast pipe respectively, discharge rear portion gas by the heat exchanger in the waste heat recovery unit, upstream, again be transported in each warm area air inlet pipe after the temperature rising with gas, to guarantee that the gas temperature in each warm area maintains in each warm area scope, another part gas enters the air inlet pipe in the first combustor, through discharging the approximately gas of 390 ° of C high temperature after the burning.
High-temperature gas is by the blast pipe downstream transport of the first combustor, and the waste heat recovery unit, a plurality of upstream that is connected in parallel on the first combustor blast pipe is optionally introduced hot gas in the heat exchanger.In each warm area of heating furnace heat sensor is arranged all, it will monitor the temperature of each warm area in the heating furnace, and with temperature signal real-time be transferred to the attemperator that is positioned at each warm area in the temperature feedback unit, attemperator respectively with each warm area in the first electric adjustable air-valve be connected electric adjustable air-valve signal and be connected; When the temperature in the warm area is lower than the design temperature scope, attemperator is opened the second electric adjustable air-valve, close the first electric adjustable air-valve, the high-temperature gas in the blast pipe is entered in the blast pipe of next warm area by the heat exchanger in the waste heat recovery unit, corresponding warm area upstream and through after the heat exchange again; When the temperature in a certain warm area was in the design temperature scope, attemperator was opened the first electric adjustable air-valve, closed the second electric adjustable air-valve, and the high-temperature gas in the blast pipe is directly entered in the blast pipe of next warm area.
High-temperature gas on the first combustor in the blast pipe is transferred to low-temperature space (the first warm area) by high-temperature region (three-temperature-zone) successively and then finishes the progressively consumption of heat energy, after gas is by the first warm area, still have an appointment waste heat about 125 ° of C, this waste heat can be done further to utilize by waste heat recovery unit, downstream, the utility model can also be with UTILIZATION OF VESIDUAL HEAT IN on air-conditioning system heat supply in winter pipeline, through after the recycling of waste heat, finally discharge outdoor waste heat and be lower than 50 ° of C.
Because technique scheme is used, the utility model compared with prior art has following advantages and effect:
1, the exhaust tube remaining heat in each warm area of the utility model reusable edible, and shortened the distance that gas heat transmits in pipeline, thus save the energy loss of gas when transmission;
2, the utility model is successively recycled the gas heat in the blast pipe on the first combustor, utilize attemperator control electric adjustable air-valve switch, thereby regulate the temperature of each warm area, effectively utilize the residual heat resources of discharging in the production process, reduced energy loss;
3, the outdoor gas temperature of the follow-up discharge of the utility model is lower than 50 ° of C, can take full advantage of waste heat, if large-scale popularization is used the problem worse that can effectively reduce global warming, is a kind of new technology of energy-conserving and environment-protective.
Description of drawings
Accompanying drawing 1 is the principle of heating figure of the utility model high-efficient energy-saving multi-temperature district drying tunnel
In the above accompanying drawing: 1, heating furnace; 11, the first warm area; 111, the first warm area air inlet pipe; 112, the first warm area blast pipe; 12, the second warm area; 121, the second warm area air inlet pipe; 122, the second warm area blast pipe; 13, three-temperature-zone; 131, three-temperature-zone air inlet pipe; 132, three-temperature-zone blast pipe; 2, the first combustor; 21, air inlet pipe; 22, blast pipe; 3, upstream waste heat recovery unit; 31, hot gases tube; 32, heat exchanger; 41, heat sensor; 42, attemperator; 43, the first electric adjustable air-valve; 44, the second electric adjustable air-valve; 5, downstream waste heat recovery unit; 6, preheating furnace; 61, the first blast pipe; 62, first row airduct; 7, the second combustor; 71, the second blast pipe; 72, second row airduct; 8, chimney.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described:
A kind of high-efficient energy-saving multi-temperature district drying tunnel, referring to accompanying drawing 1, it is characterized in that: it comprises
Heating furnace 1, have a plurality of warm areas in the stove, the temperature of each warm area is different, and heating furnace 1 of the present utility model includes three warm areas, and namely temperature the first warm area 11, the temperature that maintain 60-80 ° of C maintains the second warm area 12 of 80-120 ° of C and the three-temperature-zone 13 that temperature maintains 100-140 ° of C; Three warm areas have respectively the first warm area air inlet pipe 111, the second warm area air inlet pipe 121, three-temperature-zone air inlet pipe 131 and corresponding the first warm area blast pipe 112, the second warm area blast pipe 122, three-temperature-zone blast pipe 132, the rear workpiece to be dried that sprays paint is positioned at burner hearth, by high-temperature gas it is dried;
The first combustor 2, for each warm area provides thermal source gas, the first combustor 2 has blast pipe 22 and the air inlet pipe 21 that links to each other with each subregion blast pipe respectively, and the waste gas of discharging in the heating furnace burns in the first combustor 2, and the gas after the burning can be used for again heating furnace gas;
The waste heat recovery unit, upstream 3 that a plurality of series connection arrange, be used for the first warm area air inlet pipe 111, the second warm area air inlet pipe 121, three-temperature-zone air inlet pipe 131 is carried out heat exchange with the blast pipe 22 of described the first combustor 2 respectively, waste heat recovery unit, described upstream 3 comprises hot gases tube 31 and the heat exchanger 32 that is arranged in parallel on the blast pipe 22 of the first combustor 2, part hot gases tube 31 respectively with part the first warm area air inlet pipe 111, part the second warm area air inlet pipe 121 and part three-temperature-zone air inlet pipe 131 are passed heat exchanger 32, waste heat recovery unit 3, a plurality of upstream according to the temperature of coupled warm area from high to low, be arranged in successively downstream from the upstream on the blast pipe 22 of the first combustor 2, namely the heat referring to the three-temperature-zone of blast pipe 22 upstreams of the first combustor 2 shown in the accompanying drawing 1 is the highest, away from the second warm area 12 of the first combustor 2, the heat of the first warm area 11 reduces successively;
Temperature feedback unit 4 comprises a plurality of heat sensors 41 that are separately positioned on the first warm area 11, the second warm area 12, the three-temperature-zone 13 and the attemperator 42 that links to each other with heat sensor 41 signals.
Each waste heat recovery unit, upstream 3 also comprises a plurality of the first electric adjustable air-valves 43 on the blast pipe 22 that is connected on the first combustor 2, be connected on the second electric adjustable air-valve 44 on the hot gases tube 31 of each warm area, and hot gases tube 31 is connected in parallel on the two ends of the first electric adjustable air-valve 43, attemperator 42 respectively with the first electric adjustable air-valve 43 be connected electric adjustable air-valve 44 signals and be connected, control its unlatching or close;
The blast pipe 22 of the first combustor 2 successively each warm area of process is finished after the gas heat exchange, heat that can be residual, can carry out the recycling of waste heat by it being connected on for the waste heat recovery unit, downstream 5 that carries out heat exchange with air-conditioning system heat supply in winter pipeline, the waste heat that will finally can't recycle by chimney 8 is at last discharged outdoor.Its middle and lower reaches waste heat recovery unit 5 is positioned at the downstream of upstream recovery unit 3.
High-efficient energy-saving multi-temperature of the present utility model district drying tunnel also comprises preheating furnace 6 and the second combustor 7 that is arranged on heating furnace 1 upstream, preheating furnace 6 has the first blast pipe 61 and first row airduct 62, and the first blast pipe 61 of preheating furnace 6 links to each other with the second blast pipe 71 with the second row airduct 72 of the second combustor 7 respectively with first row airduct 62.
The below describes the course of work of the present utility model, heating furnace 1 is according to temperature height in the stove, order is divided into Three regions, the gas of each warm area in the heating furnace 1 is discharged by ventilating fan and blast pipe, gas take three-temperature-zone 13 moves towards as example, gas is from the 132 interior discharges of three-temperature-zone blast pipe, part gas enters the air inlet pipe 21 in the first combustor 2, gas is heated in the first combustor 2, export the approximately gas of 390 ° of C high temperature, this high-temperature gas provides the exchange thermal source for waste heat recovery unit, upstream 3 simultaneously by blast pipe 22 downstream transport in the first combustor 2; Another part gas carries out heat exchange by the heat exchanger 32 in the waste heat recovery unit, upstream 3 with high-temperature gas, also again is transported in the three-temperature-zone air inlet pipe 131 thereby heat up, and maintains in the 100-140 ° of C to guarantee the gas temperatures in the three-temperature-zone 13.
High-temperature gas is in waste heat recovery unit, upstream 3, blast pipe 22 is divided into two transmission branches, wherein a branch road enters in the hot gases tube 31 by the second electric adjustable air-valve 44, and by cooling to about 280 ° of C after the cryogenic gas heat exchange in heat exchanger 32 and the three-temperature-zone blast pipe 132, waste heat gas is transferred in the blast pipe 22 that leads to the second warm area 12; Another branch road directly enters in the blast pipe 22 that leads to the second warm area 12 by the first electric adjustable air-valve 43.In each warm area of heating furnace 1, heat sensor 41 is arranged, it will monitor the temperature of each warm area in the heating furnace 1, and the attemperator that is positioned at each warm area 42 that is transferred to the temperature feedback unit that temperature signal is real-time, attemperator 42 respectively with each warm area in the first electric adjustable air-valve 43 be connected electric adjustable air-valve 44 signals and be connected; When the temperature in the warm area was lower than the design temperature scope, attemperator 42 was opened the second electric adjustable air-valve 44, closes the first electric adjustable air-valve 43, and heat exchanger is heated the blast pipe of each warm area; When the temperature in a certain warm area was in the design temperature scope, attemperator 42 was opened the first electric adjustable air-valve 43, closes the second electric adjustable air-valve 44, and the high-temperature gas in the blast pipe 22 is directly entered in the blast pipe 22 of next warm area without heat exchange.
The second warm area 12 in the heating furnace 1 is identical with three-temperature-zone 13 with the gas heat transmission principle of the first warm area 11, high-temperature gas on the first combustor 2 in the blast pipe 22 is transferred to low-temperature space (the first warm area 11) by high-temperature region (three-temperature-zone 13) successively and then finishes the progressively consumption of heat energy, after gas is by the first warm area, still have an appointment waste heat about 125 ° of C, this waste heat can be done further to utilize by waste heat recovery unit, downstream 5, the utility model according to the actual demand of place company with UTILIZATION OF VESIDUAL HEAT IN on air-conditioning system heat supply in winter pipeline, through after the recycling of waste heat, the waste heat of finally discharging chimney 8 has been lower than 50 ° of C.
Gas heat in the blast pipe on the first combustor 2 22 is successively recycled, effectively utilized the residual heat resources of discharging in the production process, reduced energy loss; Utilizing in addition this utility model so that follow-uply be discharged to outdoor gas temperature and be lower than 50 ° of C, if large-scale popularization is used the problem worse that can effectively reduce global warming, is a kind of new technology of energy-conserving and environment-protective.
Above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with technique can understand content of the present utility model and according to this enforcement, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model spirit change or modify, and all should be encompassed within the protection domain of the present utility model.
Claims (4)
1. high-efficient energy-saving multi-temperature district drying tunnel, it is characterized in that: it comprises
Heating furnace, inside have a plurality of warm areas, and the temperature of each described warm area is different, and each described warm area all has divisional air admission pipe and subregion blast pipe;
The first combustor, for described drying tunnel provides thermal source gas, described the first combustor has blast pipe and the air inlet pipe that links to each other with the blast pipe of each subregion respectively;
The waste heat recovery unit, upstream that a plurality of series connection arrange, the air inlet pipe that is used for each warm area is carried out heat exchange with the blast pipe of described the first combustor respectively, waste heat recovery unit, described upstream comprises hot gases tube and the heat exchanger that is arranged in parallel on the blast pipe of described the first combustor, the air inlet pipe of described hot gases tube and one of them warm area has respectively part to pass described heat exchanger, and waste heat recovery unit, a plurality of described upstream is arranged on the blast pipe of described the first combustor according to the temperature of coupled warm area from high to low successively;
The temperature feedback unit comprises the heat sensor that is arranged in each described warm area, the attemperator that links to each other with described heat sensor signal;
Series connection is provided with a plurality of the first electric adjustable air-valves on the blast pipe of described the first combustor, be in series with the second electric adjustable air-valve on the hot gases tube of each waste heat recovery unit, described upstream, and described hot gases tube is connected in parallel on the two ends of described the first electric adjustable air-valve, described attemperator respectively with described the first electric adjustable air-valve be connected electric adjustable air-valve signal and be connected;
When the temperature in the described warm area was in the design temperature scope, described attemperator was opened described the first electric adjustable air-valve, closed described the second electric adjustable air-valve; When the temperature in the described warm area was lower than the design temperature scope, described attemperator was opened described the second electric adjustable air-valve, closed described the first electric adjustable air-valve.
2. high-efficient energy-saving multi-temperature according to claim 1 district drying tunnel, it is characterized in that: described heating furnace comprises three warm areas.
3. high-efficient energy-saving multi-temperature according to claim 1 district drying tunnel, it is characterized in that: it also comprises preheating furnace and the second combustor that is arranged on described heating furnace upstream, described preheating furnace has the first blast pipe and first row airduct, and the first blast pipe of described preheating furnace links to each other with the second blast pipe with the second row airduct of described the second combustor respectively with the first row airduct.
4. high-efficient energy-saving multi-temperature according to claim 1 district drying tunnel, it is characterized in that: also be in series with on the blast pipe of described the first combustor for the waste heat recovery unit, downstream that carries out heat exchange with air-conditioning system heat supply in winter pipeline, waste heat recovery unit, described downstream is positioned at the downstream of described upstream recovery unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203467040U CN202692648U (en) | 2012-07-17 | 2012-07-17 | High-efficiency and energy-saving multi-temperature-zone drying tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203467040U CN202692648U (en) | 2012-07-17 | 2012-07-17 | High-efficiency and energy-saving multi-temperature-zone drying tunnel |
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| CN202692648U true CN202692648U (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012203467040U Expired - Fee Related CN202692648U (en) | 2012-07-17 | 2012-07-17 | High-efficiency and energy-saving multi-temperature-zone drying tunnel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735043A (en) * | 2012-07-17 | 2012-10-17 | 苏州柳溪机电工程有限公司 | Efficient energy-saving multi-warm-area drying channel |
| CN107145174A (en) * | 2017-04-27 | 2017-09-08 | 江苏石川岛丰东真空技术有限公司 | One kind heat treatment vacuum drying oven zone temperature control system |
-
2012
- 2012-07-17 CN CN2012203467040U patent/CN202692648U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735043A (en) * | 2012-07-17 | 2012-10-17 | 苏州柳溪机电工程有限公司 | Efficient energy-saving multi-warm-area drying channel |
| CN102735043B (en) * | 2012-07-17 | 2015-07-29 | 苏州柳溪机电工程有限公司 | High-efficient energy-saving multi-temperature district drying tunnel |
| CN107145174A (en) * | 2017-04-27 | 2017-09-08 | 江苏石川岛丰东真空技术有限公司 | One kind heat treatment vacuum drying oven zone temperature control system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20140717 |
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| EXPY | Termination of patent right or utility model |