CN201609692U - Drying waste heat utilizing device of large automobile coating production line - Google Patents
Drying waste heat utilizing device of large automobile coating production line Download PDFInfo
- Publication number
- CN201609692U CN201609692U CN2009200948600U CN200920094860U CN201609692U CN 201609692 U CN201609692 U CN 201609692U CN 2009200948600 U CN2009200948600 U CN 2009200948600U CN 200920094860 U CN200920094860 U CN 200920094860U CN 201609692 U CN201609692 U CN 201609692U
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- gas
- heat exchange
- water
- liquid heat
- drying
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Abstract
The utility model relates to a drying waste heat utilizing device of a large automobile coating production line, which is characterized in that after hot air of a drying chamber passes through a drying exhaust gas treating device, a smoke pipeline is connected with a gas-liquid heat exchanging device, a cavity of the gas-liquid heat exchanging device is internally and uniformly distributed with water pipes, and after heat exchange, the heated water in the gas-liquid heat exchanging device is introduced into pre-treatment equipment; and the drying waste heat utilizing device carries out secondary utilization on waste heat of exhaust gas in the drying chamber, improves energy utilization ratio, reduces the emission of carbon dioxide, reduces the cost of single automobile and has low maintenance cost.
Description
Technical field:
The utility model relates to a kind of full-sized car paint line drying waste heat use device, belong to the waste gas energy-saving field.
Background technology:
The domestic automobile paint line mostly adopts incinerator promptly to handle waste gas with methods such as quaternary body, RTO, Tar at present, and a flue gas of generation for drying chamber provides heat, and is discharged factory building as the thermal source of (or two a) smoke heat replacing device.
It mainly acts on
A. handle the waste gas that produces in the drying chamber
B. provide a part of heat to drying chamber
Its major defect is that exhaust gas temperature is too high, and heat energy utilization is insufficient.
Summary of the invention:
The purpose of this utility model is to provide a kind of full-sized car paint line drying waste heat use device, is the device that a kind of burnt gas waste heat secondary utilizes, and it has improved the flue gas waste heat recovery ability.
Technical solutions of the utility model are achieved in that full-sized car paint line drying waste heat use device, form by oven dry emission-control equipment, gas-liquid heat exchange device, control module, it is characterized in that: the drying chamber hot blast is by after drying emission-control equipment, flue gas pipeline links to each other with the gas-liquid heat exchange device, be evenly equipped with water pipe in the cavity of gas-liquid heat exchange device, after carrying out heat exchange, the hot water that is heated in the gas-liquid heat exchange device feeds the pre-processing device heat-exchanger rig and is used to add pre-processing device; Its concrete steps are as follows: 1, dry a delivery temperature of drying chamber in the emission-control equipment greater than 200 ℃, after the gas-liquid heat exchange device reclaims flue gas heat, discharge outdoor, flue gas and water carry out heat exchange in the gas-liquid heat exchange device, flue-gas temperature is reduced to 120 ℃, will be used for heat supply after the circulation of the water in the water pipe heating; Flue is provided with by-passing valve, when water temperature continues to raise, flue gas directly is disposed to atmosphere through bypass without the gas-liquid heat exchange device; 2, the hot water in the gas-liquid heat exchange device inner conduit feeds the hot water storgae of pre-treatment workshop section, is used for insulation, 55～60 ℃ of hot water storgae constant temperature; The thermal source of hot water is the two thermals source of gas-liquid heat exchange device and board-like water one water-to-water heat exchanger in the hot water storgae, preferentially uses the gas-liquid heat exchange device, and two water circulating pumps are set, the using and the reserved, and 65 ℃ of return water temperatures, 95 ℃ of supply water temperatures, pipeline is provided with variable frequency pump and safety valve; 3, hot water storgae disposes automatic control system, and when gas-liquid heat exchange device caloric value was incubated institute's calorific requirement greater than hot water storgae, by-passing valve directly drained into atmosphere to high-temperature flue gas without waste-heat recoverer; During gas-liquid heat exchange device shortage of heat, provide the insufficient section heat, adopt triple valve to control the heat that adds of board-like water-water heat exchanger by board-like water-water heat exchanger.
The beneficial effects of the utility model are that the drying room waste gases waste heat is carried out the secondary utilization, improve energy utilization rate, reduce CO2 emissions, reduce single vehicle cost, and maintenance cost is low.
Description of drawings:
Fig. 1 is a schematic diagram of the present utility model
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is further described: as shown in Figure 1, full-sized car paint line drying waste heat use device, form by oven dry emission-control equipment 1, gas-liquid heat exchange device 2, control module, it is characterized in that: the drying chamber hot blast is by after drying emission-control equipment 1, flue gas pipeline links to each other with gas-liquid heat exchange device 2, be evenly equipped with water pipe in the cavity of gas-liquid heat exchange device 2, after carrying out heat exchange, the hot water that is heated in the gas-liquid heat exchange device 2 feeds the pre-processing device heat-exchanger rig and is used to add pre-processing device; Its concrete steps are as follows: 1, dry the delivery temperature of drying chamber in the emission-control equipment 1 greater than 200 ℃, after gas-liquid heat exchange device 2 reclaims flue gas heat, discharge outdoor, flue gas and water carry out heat exchange in gas-liquid heat exchange device 2, flue-gas temperature is reduced to 120 ℃, will be used for heat supply after the circulation of the water in the water pipe heating; Flue is provided with by-passing valve, when water temperature continues to raise, flue gas directly is disposed to atmosphere through bypass without gas-liquid heat exchange device 2; 2, the hot water in gas-liquid heat exchange device 2 inner conduits feeds the hot water storgae insulation of pre-treatment workshop section, is used for insulation, 55～60 ℃ of hot water storgae constant temperature; The thermal source of hot water is gas-liquid heat exchange device and 4 pairs of thermals source of board-like water-water heat exchanger in the hot water storgae 3, preferentially uses gas-liquid heat exchange device 2, and two water circulating pumps are set, the using and the reserved, 65 ℃ of return water temperatures, 95 ℃ of supply water temperatures, pipeline is provided with variable frequency pump and safety valve; 3, hot water storgae 3 disposes automatic control system, and when gas-liquid heat exchange device 2 caloric values were incubated institute's calorific requirement greater than hot water storgae 3, by-passing valve directly drained into atmosphere to high-temperature flue gas without waste-heat recoverer; During gas-liquid heat exchange device 2 shortages of heat, provide the insufficient section heat, adopt triple valve to control the heat that adds of board-like water-water heat exchanger 4 by board-like water-water heat exchanger 4.
Be example with the light-duty depot in Harbin application workshop below, this application workshop have the electrophoresis drying chamber and in be coated with the drying chamber exhaust can be for utilizing, capacity is respectively 7650m
3/ h and 5630m
3/ h, 200 ℃ of delivery temperatures, flue gas emptying behind the gas-liquid heat exchange device, flue gas and water carry out heat exchange in gas-liquid heat exchange device 2, and flue-gas temperature is reduced to 120 ℃, will be used for the technology heat supply after the water circulation heating.Flue is provided with by-passing valve, when water temperature continue to raise, shows the waste heat recovery heat greater than requirement, may cause the hot water boiling, at this moment flue gas without gas-liquid heat exchange device 2 direct bypass to atmosphere to prevent that hot water from gasifying.The hot water of waste heat recovery is used for hot water storgae 3 insulations of pre-treatment workshop section, and hot water storgae 3 needs to keep 55～60 ℃ of constant temperature.When hot water storgae 3 starts operation, it is bigger to add heat, as calculated, adding heat is 1100kW, the heat of waste heat recovery has only 345kW, so this heating system also is provided with board-like water-water heat exchanger 4 thermal source as a supplement except that the thermal source of heat as preferential use that waste-heat recoverer produces, when the waste heat shortage of heat, use, be in constant temperature all the time with the hot water that guarantees hot water storgae 3.Automatic control system can be moved automatically and guarantee tank 3 constant temperature.The recirculated water heating system is provided with two water circulating pumps, the using and the reserved, and 65 ℃ of system's return water temperatures, 95 ℃ of supply water temperatures, hot water circuit amount 45.9t/h, house steward's caliber DN125 is provided with variable frequency pump water-supply and pressure-stabling system in addition.System is provided with safety valve, when water system surpasses predetermined pressure, and sluicing step-down, the security of operation of assurance system.
Claims (1)
1. full-sized car paint line drying waste heat use device, form by oven dry emission-control equipment (1), gas-liquid heat exchange device (2), control module, it is characterized in that: the drying chamber hot blast is by after drying emission-control equipment (1), flue gas pipeline links to each other with gas-liquid heat exchange device (2), be evenly equipped with water pipe in the cavity of gas-liquid heat exchange device (2), after carrying out heat exchange, the water that is heated in the gas-liquid heat exchange device (2) feeds pre-processing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200948600U CN201609692U (en) | 2009-11-27 | 2009-11-27 | Drying waste heat utilizing device of large automobile coating production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200948600U CN201609692U (en) | 2009-11-27 | 2009-11-27 | Drying waste heat utilizing device of large automobile coating production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201609692U true CN201609692U (en) | 2010-10-20 |
Family
ID=42960324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200948600U Expired - Lifetime CN201609692U (en) | 2009-11-27 | 2009-11-27 | Drying waste heat utilizing device of large automobile coating production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201609692U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020020536A (en) * | 2018-08-02 | 2020-02-06 | トリニティ工業株式会社 | Heat recovery device and electrodeposition coating system |
-
2009
- 2009-11-27 CN CN2009200948600U patent/CN201609692U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020020536A (en) * | 2018-08-02 | 2020-02-06 | トリニティ工業株式会社 | Heat recovery device and electrodeposition coating system |
| CN112313456A (en) * | 2018-08-02 | 2021-02-02 | 得立鼎工业株式会社 | Heat recovery device and electrodeposition coating system |
| CN112313456B (en) * | 2018-08-02 | 2022-10-21 | 得立鼎工业株式会社 | Heat recovery device and electrodeposition coating system |
| JP7177620B2 (en) | 2018-08-02 | 2022-11-24 | トリニティ工業株式会社 | Heat recovery device and electrodeposition coating system |
| US11725295B2 (en) | 2018-08-02 | 2023-08-15 | Trinity Industrial Corporation | Heat recovery device and electrodeposition coating system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101020 |