CN205352099U - Surplus thermal treatment system of coating line pretreatment - Google Patents

Surplus thermal treatment system of coating line pretreatment Download PDF

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Publication number
CN205352099U
CN205352099U CN201521021277.9U CN201521021277U CN205352099U CN 205352099 U CN205352099 U CN 205352099U CN 201521021277 U CN201521021277 U CN 201521021277U CN 205352099 U CN205352099 U CN 205352099U
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China
Prior art keywords
water
heat exchanger
flue gas
exchanger coil
circulation pipe
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CN201521021277.9U
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Chinese (zh)
Inventor
马金环
元鑫
刘衍阔
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Tianjin 707 Hi Tech Co Ltd
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Tianjin 707 Hi Tech Co Ltd
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Priority to CN201521021277.9U priority Critical patent/CN205352099U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

Abstract

The utility model provides a surplus thermal treatment system of coating line pretreatment, including constitutions such as cistern, heat exchanger coil, residual heat recycling pump, butterfly valve, relief valve, water -circulating pipe way, flue gas heat exchanger, drying solidification grate cigarette system, water collectors, the heat exchanger coil is arranged in the cistern, and the tank liquor in the cistern did not have a heat exchanger coil simultaneously, and the heat exchanger coil is connected with the water -circulating pipe way, carries out the cyclic motion through the residual heat recycling pump with water in the water -circulating pipe way to through flue gas heat exchanger's water by the high temperature flue gas of drying solidification stove heating back, the water after will heating through the water -circulating pipe way promotes to get back to the heat exchanger coil down in the helping hand of residual heat recycling pump, makes hot water tank liquor intensification in the heat exchanger coil is with the cistern again. The high temperature flue gas that produces drying solidification stove heating system carries out recycle for to the heating of pretreatment liquid medicine, through utilizing the waste heat recovery structure, can realize energy -conservation 10~30%, reduce discharging 10~20%, reduce the running cost of coating line equipment totality simultaneously.

Description

A kind of paint line pre-treatment surplus heat treatment system
Technical field
This utility model belongs to industrial exhaust heat and utilizes technical field, relates to a kind of paint line pre-treatment surplus heat treatment system.
Background technology
The waste heat flue gas that current boiler back end ductwork is discharged, not only contaminated environment, its effective energy can not get sufficient utilization simultaneously so that it is can not meet the requirement of energy-saving and emission-reduction.Usual fume afterheat resource belongs to secondary energy sources, is the product after primary energy or combustible material conversion, or the heat that the heat sent in fuel combustion process is remaining after completing a certain technical process.According to temperature grade, industrial, waste heat is generally divided into the high-temperature residual heat of more than 600 DEG C and the low temperature exhaust heat of less than 300 DEG C.The flue gas that usual boiler is discharged has the advantages that low temperature exhaust heat amount is big and temperature distribution range is wide, and the flue gas that boiler is discharged simultaneously accounts for more than the 50% of industrial waste heat resource total amount.
The technological process that current existing coating surface processes includes following step: pre-treatment → dry → dust or spray paint → solidify, usual processing technological flow is it is generally required to arrange hot water wash, defat, phosphatizations etc. need the operation of heating, simultaneously in typical paint line process of surface treatment, pre-treatment medicinal liquid needs temperature mostly between 40~60 DEG C, and dry, curing oven needs temperature mostly between 100~200 DEG C, dry, the exhaust gas temperature of curing oven is about between 200~300 DEG C, if device structure is unreasonable, heat exchange efficiency difference, exhaust gas temperature can be higher, to dry, the high-temperature flue gas that curing oven heating system produces is directly discharged in air, not only severe contamination air, and be the waste to the energy, if the part energy that the waste heat flue gas that baking and curing fire grate is walked heats as pre-treatment, the energy loss of pre-treatment can not only be saved, reduce production cost, decrease again smoke discharge amount, protect environment.Therefore a kind of paint line pre-treatment surplus heat treatment system is provided to be particularly important.
Utility model content
Main purpose of the present utility model is existing coating surface to process the utilization of the energy in technique carry out reasonably optimizing and distribution, recycled by the waste heat flue gas that baking and curing fire grate is walked, it is heated pre-treatment medicinal liquid processing, realize the sufficiently and reasonably utilization of the energy, and reaching energy-saving and emission-reduction, this utility model provides a kind of paint line pre-treatment surplus heat treatment system.
This utility model solves above-mentioned technical problem and be the technical scheme is that
A kind of paint line pre-treatment surplus heat treatment system, it is characterised in that described system includes the compositions such as liquid bath, heat exchanger coil, waste heat circulation pump, butterfly valve, relief valve, water circulation pipe, flue gas heat exchanger, baking and curing stove smoke evacuation system, water collector.
Described heat exchanger coil is arranged in liquid bath, tank liquor in liquid bath did not have heat exchanger coil simultaneously, whole heat exchanger coil is made to be wrapped in the tank liquor of liquid bath, described heat exchanger coil is connected with water circulation pipe, by waste heat circulation pump, recirculated water is circulated in water circulation pipe motion, and after the water of flue gas heat exchanger is heated by the high-temperature flue gas of baking and curing stove, by water circulation pipe, the water after heating is returned to heat exchanger coil under the power-assisted of waste heat circulation pump promotes so that tank liquor in liquid bath is heated up by hot water then through heat exchanger coil.
Described water circulation pipe is provided with water collector, water inlet is connected by water intaking valve, its water collector is made to have the effect of buffering in water circulation pipe, prevent the water yield in circulation line excessively sufficient, between water collector and water intaking valve, it is provided with Pressure gauge simultaneously, can pressure in effective monitoring inlet pipeline, reduce the excessive impact to pipeline of current.
The principle of the hydromining upper entering and lower leaving in described flue gas heat exchanger, by waste heat circulation pump, recirculated water is taken in flue gas heat exchanger, drying, curing oven high-temperature flue gas heating after, return in water circulation pipe, flue gas heat exchanger connects baking and curing stove smoke evacuation system simultaneously so that it is discharged by smoke evacuation system by the flue gas failing to utilize.
Described water circulation pipe is additionally provided with butterfly valve, relief valve, vent valve and connects the outlet of recirculated water.
Described baking and curing stove smoke evacuation system is additionally provided with outlet.
The utility model has the advantage of: this utility model provides a kind of paint line pre-treatment surplus heat treatment system, the high-temperature flue gas that baking and curing stove heating system produces is recycled, for the heating to pre-treatment medicinal liquid, achieve and can make full use of and optimization in seedbed, by utilizing waste heat recovery structure, energy-conservation 10~30% can be realized, reduce discharging 10~20%, only effectively do not save mass energy, the operating cost of paint line outfit of equipment can also be reduced simultaneously, effectively reduce the pollution to environment and energy-saving and emission-reduction.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model detailed description of the invention or technical scheme of the prior art, the accompanying drawing used required in detailed description of the invention or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Wherein:
1, liquid bath, 2, heat exchanger coil, 3, water intaking valve, 4, Pressure gauge, 5, waste heat circulation pump, 6, butterfly valve, 7, relief valve, 8, water circulation pipe, 9, vent valve, 10, flue gas heat exchanger, 11, baking and curing stove smoke evacuation system, 12, water collector 13. water inlet, 14. outlets
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, it is clear that described embodiment is a part of embodiment of this utility model, rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.
A kind of paint line pre-treatment surplus heat treatment system, it is characterized in that, described system includes the compositions such as liquid bath (1), heat exchanger coil (2), waste heat circulation pump (5), butterfly valve (6), relief valve (7), water circulation pipe (8), flue gas heat exchanger (10), baking and curing stove smoke evacuation system (11), water collector (12).
Described heat exchanger coil (2) is arranged in liquid bath (1), tank liquor in liquid bath did not have heat exchanger coil simultaneously, whole heat exchanger coil is made to be wrapped in the tank liquor of liquid bath, described heat exchanger coil is connected with water circulation pipe, by waste heat circulation pump (5), recirculated water is circulated motion in water circulation pipe (8), and after the water of flue gas heat exchanger (10) is heated by the high-temperature flue gas of baking and curing stove, by water circulation pipe, the water after heating is returned to heat exchanger coil (2) under the power-assisted of waste heat circulation pump promotes, interior for liquid bath (1) tank liquor is heated up by hot water then through heat exchanger coil.
Described water circulation pipe (8) is provided with water collector (12), water inlet (13) is connected by water intaking valve (3), its water collector is made to have the effect of buffering in water circulation pipe, prevent the water yield in circulation line excessively sufficient, between water collector and water intaking valve, it is provided with Pressure gauge (4) simultaneously, can pressure in effective monitoring inlet pipeline, reduce the excessive impact to pipeline of current.
The principle of the hydromining upper entering and lower leaving in described flue gas heat exchanger (10), by waste heat circulation pump (5), recirculated water is taken in flue gas heat exchanger (10), after the high-temperature flue gas heating of drying curing oven, return in water circulation pipe (8), flue gas heat exchanger connects baking and curing stove smoke evacuation system simultaneously so that it is discharged by smoke evacuation system (11) by the flue gas failing to utilize.
Described water circulation pipe is additionally provided with butterfly valve (6), relief valve (7), vent valve (9) and connects the outlet (14) of recirculated water.
Described baking and curing stove smoke evacuation system is additionally provided with outlet (14), and by flue gas after heat transfer, the temperature decrease of high-temperature flue gas, the condensed water that condensation produces is discharged through outlet.
Last it is noted that various embodiments above is only in order to illustrate the technical solution of the utility model, it is not intended to limit;Although this utility model being described in detail with reference to foregoing embodiments, it will be understood by those within the art that: the technical scheme described in foregoing embodiments still can be modified by it, or wherein some or all of technical characteristic is carried out equivalent replacement;And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of this utility model.

Claims (5)

1. a paint line pre-treatment surplus heat treatment system, it is characterised in that described system includes liquid bath, heat exchanger coil, waste heat circulation pump, butterfly valve, relief valve, water circulation pipe, flue gas heat exchanger, baking and curing stove smoke evacuation system, water collector;
Described heat exchanger coil is arranged in liquid bath, tank liquor in liquid bath did not have heat exchanger coil simultaneously, whole heat exchanger coil is made to be wrapped in the tank liquor of liquid bath, described heat exchanger coil is connected with water circulation pipe, by waste heat circulation pump, recirculated water is circulated in water circulation pipe motion, and after the water of flue gas heat exchanger is heated by the high-temperature flue gas of baking and curing stove, by water circulation pipe, the water after heating is returned to heat exchanger coil under the power-assisted of waste heat circulation pump promotes so that tank liquor in liquid bath is heated up by hot water then through heat exchanger coil.
2. a kind of paint line pre-treatment surplus heat treatment system according to claim 1, it is characterised in that be provided with water collector in described water circulation pipe, connect water inlet by water intaking valve and be provided with Pressure gauge between water collector and water intaking valve simultaneously.
3. a kind of paint line pre-treatment surplus heat treatment system according to claim 2, it is characterised in that be additionally provided with butterfly valve, relief valve, vent valve in described water circulation pipe and connect the outlet of recirculated water.
4. a kind of paint line pre-treatment surplus heat treatment system according to claim 3, it is characterized in that, the principle of the hydromining upper entering and lower leaving in flue gas heat exchanger, by waste heat circulation pump, recirculated water is taken in flue gas heat exchanger, drying, curing oven high-temperature flue gas heating after, returning in water circulation pipe, flue gas heat exchanger connects baking and curing stove smoke evacuation system simultaneously.
5. a kind of paint line pre-treatment surplus heat treatment system according to claim 4, it is characterised in that described baking and curing stove smoke evacuation system is additionally provided with outlet.
CN201521021277.9U 2015-12-08 2015-12-08 Surplus thermal treatment system of coating line pretreatment Active CN205352099U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201521021277.9U CN205352099U (en) 2015-12-08 2015-12-08 Surplus thermal treatment system of coating line pretreatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201521021277.9U CN205352099U (en) 2015-12-08 2015-12-08 Surplus thermal treatment system of coating line pretreatment

Publications (1)

Publication Number Publication Date
CN205352099U true CN205352099U (en) 2016-06-29

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Application Number Title Priority Date Filing Date
CN201521021277.9U Active CN205352099U (en) 2015-12-08 2015-12-08 Surplus thermal treatment system of coating line pretreatment

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109059580A (en) * 2018-05-28 2018-12-21 安徽新力鼎科技有限公司 A kind of hot water secondary heat exchange system for painting operation
CN113883882A (en) * 2021-08-23 2022-01-04 茌平阳之光亲水箔有限公司 Energy-saving and consumption-reducing system and method for hydrophilic foil processing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109059580A (en) * 2018-05-28 2018-12-21 安徽新力鼎科技有限公司 A kind of hot water secondary heat exchange system for painting operation
CN113883882A (en) * 2021-08-23 2022-01-04 茌平阳之光亲水箔有限公司 Energy-saving and consumption-reducing system and method for hydrophilic foil processing

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