CN201704390U - Waste heat recovery system - Google Patents
Waste heat recovery system Download PDFInfo
- Publication number
- CN201704390U CN201704390U CN2010201939921U CN201020193992U CN201704390U CN 201704390 U CN201704390 U CN 201704390U CN 2010201939921 U CN2010201939921 U CN 2010201939921U CN 201020193992 U CN201020193992 U CN 201020193992U CN 201704390 U CN201704390 U CN 201704390U
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- waste heat
- water tank
- heat recovery
- water
- magnetic valve
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- Expired - Fee Related
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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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
The utility model provides a waste heat recovery system, which is used for galvanization industry and comprises a waste heat recovery device, a water pump, a water tank, a pure water system, a control system, a galvanization assisting groove or a corrosion groove, polyfluoroalkoxy (PFA) heat exchangers and a connecting pipeline. The waste heat recovery device is arranged inside a flue of a galvanizing pot; the water pump and a check valve are arranged on the connecting pipe between a water inlet end of the waste heat recovery device and the water tank; an electromagnetic valve is arranged on a pipeline between a water outlet end of the waste heat recovery device and the water tank; the water tank is connected with the pure water system by the aid of the pipeline with the electromagnetic valve; a liquid level meter is arranged inside the water tank; the PFA heat exchangers are arranged at two ends of the galvanization assisting groove or the corrosion groove with a thermometer; electromagnetic valves are respectively arranged on pipelines for connecting the PFA heat exchangers with the waste heat recovery device; and the liquid level meter, the thermometer and the electromagnetic valves are all controlled by the control system. By recovering waste heat inside the flue of the galvanizing pot and using the waste heat for heating the corrosion groove, the waste heat recovery system achieves the purposes of saving energy and reducing emission and consumption.
Description
Technical field
The utility model relates to the heat recovery technical field, is specifically related to a kind of efficient residual neat recovering system.
Background technology
The producer gas generators that adopt heat the zinc pot more in the galvanizing industry, and consumption of coal is very big.Zinc pot with size 13m * 2.5m * 2.5m is an example, molten zinc temperature＞450 ℃, and consumption of coal reaches 2000 tons/year, and a large amount of flue residue heats directly discharges in atmosphere in the heat-processed, brings considerable influence to environment in a large amount of wastes of heat energy.And on product, three of etching tanks are arranged and help one of coating bath before the plating, every groove volume is 120m
3Because working temperature reaches as high as 70 ℃, need to carry out the groove internal heating with coal-fired steam boiler and stainless steel well heater, with 10 tons of coal-fired steam boilers is example, per hour consumption of coal is 1.2 tons, and consumption produces certain environment in the time of coal-fired in a large number and pollutes, and well heater is a stainless steel, easily being corroded, it is frequent to cause changing, and increases enterprise cost.At above situation, we go out residual neat recovering system at development and Design, be used for to etching tank after the flue discharges heat of zinc pot reclaimed and help the coating bath heating, to replace original coal-fired steam boiler and stainless steel heater system, finally realize the target of energy-saving and emission-reduction consumption reduction, minimizing air environmental pollution.
Summary of the invention
The purpose of this utility model is at the serious problem of existing galvanizing industry thermal waste, provides a kind of with waste heat recovery in the zinc pot flue and be used for etching tank or help the efficient residual neat recovering system of coating bath heating.
For achieving the above object, technical solutions of the utility model are as follows:
Residual neat recovering system comprises waste-heat recoverer, water pump, water tank, pure water system, Controlling System, helps coating bath or etching tank, PFA interchanger and connecting tube; Described waste-heat recoverer is located in the flue of zinc pot, connecting tube between waste-heat recoverer inlet end and the water tank is provided with water pump and vacuum breaker, pipeline between waste-heat recoverer water outlet end and the water tank is provided with magnetic valve 3, water tank is connected with pure water system by the pipeline of charged magnet valve 4, is provided with liquidometer in the water tank; The PFA interchanger is located at the two ends that help coating bath or etching tank, helps in coating bath or the etching tank and is provided with thermometer, is respectively equipped with magnetic valve 1 and magnetic valve 2 on PFA interchanger and the pipeline that waste-heat recoverer is connected; Described liquidometer, thermometer, magnetic valve 1, magnetic valve 2, magnetic valve 3, magnetic valve 4 are controlled by Controlling System.
The utility model know-why is: the waste-heat recoverer of being made by seamless heat-resisting allay material is installed in zinc pot flue, its appearance sandblast polishing back spraying environment protection type corrosion resistant, high temperature resistant infra-red paint, utilize this coating heat absorption fast, the characteristics that heat absorption efficiency is high, exchange in the cryogenic media (cold water) after the heat of high-temperature gas in the flue fully absorbed, cryogenic media heat up after pipe-line transportation to the PFA interchanger that helps coating bath or etching tank two ends, liquid generation thermal exchange in intrafascicular high-temperature medium of PFA Tube Sheet of Heat Exchanger and the groove, make tank liquor be warming up to working temperature, thereby substitute original heating system, realize the purpose of energy-saving and emission-reduction consumption reduction.
Advantage of the present utility model is:
After utilizing waste-heat recoverer with high-temperature gas heat recuperation in the zinc pot flue, be delivered to the tube bundle heat exchanger that helps in coating bath or the etching tank through heat-transfer medium, substitute original heating system tank liquor is heated, in a large amount of save energy, reduced atmospheric pollution; The waste-heat recoverer appearance is coated with the coating that heat absorption is fast, heat absorption efficiency is high, can improve heat recovery efficiency more than 25%; Tube bundle heat exchanger adopts the form of capillary bundle, has increased the contact area of solution in interchanger and the groove, make heat-conductive characteristic excellent more, and selecting for use of PFA material makes the enhancing of interchanger erosion resistance, significant prolongation its work-ing life.
Description of drawings
Fig. 1 is the utility model residual neat recovering system structural representation
1, waste-heat recoverer; 2, flue; 3, zinc pot; 4, water pump; 5, vacuum breaker; 6, water tank; 7, liquidometer; 8, pure water system; 9, Controlling System; 10, help coating bath (or etching tank); 11, PFA interchanger; 12, thermometer; 13, magnetic valve 1; 14, magnetic valve 2,15, magnetic valve 3,16, magnetic valve 4.
Embodiment:
In order to make the utility model easy to understand, further set forth the utility model below in conjunction with accompanying drawing.
Embodiment 1:
With reference to shown in Figure 1: residual neat recovering system comprises waste-heat recoverer (1), water pump (4), water tank (6), pure water system (8), Controlling System (9), helps coating bath or etching tank (10), PFA interchanger (11) and connecting tube; Waste-heat recoverer is located in the flue (2) of zinc pot (3), connecting tube between waste-heat recoverer inlet end and the water tank is provided with water pump and vacuum breaker (5), pipeline between waste-heat recoverer water outlet end and the water tank is provided with magnetic valve 3 (15), water tank is connected with pure water system by the pipeline of charged magnet valve 4 (16), is provided with liquidometer (7) in the water tank; The PFA interchanger is located at the two ends that help coating bath or etching tank (10), helps and is provided with thermometer (12) in coating bath or the etching tank, is respectively equipped with magnetic valve 1 (13) and magnetic valve 2 (14) on PFA interchanger and the pipeline that waste-heat recoverer is connected; Described liquidometer, thermometer, magnetic valve 1, magnetic valve 2, magnetic valve 3, magnetic valve 4 are controlled by Controlling System.
Waste-heat recoverer (1) is made by seamless heat-resisting allay material, its appearance sandblast polishing back spraying environment protection type corrosion resistant, high temperature resistant infra-red paint, exchange in the cryogenic media (cold water) after the heat of high-temperature gas in the flue (2) fully absorbed, cryogenic media heat up after pipe-line transportation to the PFA interchanger (11) that helps coating bath or etching tank (10) two ends, liquid generation thermal exchange in intrafascicular high-temperature medium of PFA Tube Sheet of Heat Exchanger and the groove, make tank liquor be warming up to working temperature, thereby substitute original heating system, realize the purpose of energy-saving and emission-reduction consumption reduction.Because the coating of waste-heat recoverer (1) surface spraying has the advantages that heat absorption is fast, heat absorption efficiency is high, can correspondingly reduce in the heat recovery heat exchanger by 20% heat interchanging area, waste-heat recoverer is prolonged following work-ing life, for user enterprise saves cost more than 20% at the flue gas corrosion state.
PFA tube bundle heat exchanger system is made after selecting the TEFLON raw material production tubing of du pont company for use, because PFA is a kind of fully-closed heat-fusible materials, add that the form that adopts capillary bundle has increased the contact area of solution in interchanger and the groove, thereby make heat-conductive characteristic excellent more.Practical application shows: when hot water temperature in the tube bank when being 95 ℃ interchanger 90% thermal exchange liquid to the groove can be heated tank liquor temperature to more than 70 ℃, this is that the interchanger of other materials can not be compared.In addition, the PFA interchanger can use in any highly basic strong acid solution, and the anti-aging cycle of product is more than 10 years.
Description in the foregoing description and the specification sheets has just illustrated principle of the present utility model, and under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall in the claimed scope.
Claims (2)
1. a residual neat recovering system is characterized in that, comprises waste-heat recoverer, water pump, water tank, pure water system, Controlling System, helps coating bath, PFA interchanger and connecting tube; Described waste-heat recoverer is located in the flue of zinc pot, connecting tube between waste-heat recoverer inlet end and the water tank is provided with water pump and vacuum breaker, pipeline between waste-heat recoverer water outlet end and the water tank is provided with magnetic valve (3), water tank is connected with pure water system by the pipeline of charged magnet valve (4), is provided with liquidometer in the water tank; The PFA interchanger is located at the two ends that help coating bath, helps and is provided with thermometer in the coating bath, is respectively equipped with magnetic valve (1) and magnetic valve (2) on PFA interchanger and the pipeline that waste-heat recoverer is connected; Described liquidometer, thermometer, magnetic valve (1), magnetic valve (2), magnetic valve (3), magnetic valve (4) are controlled by Controlling System.
2. residual neat recovering system according to claim 1 is characterized in that, the described coating bath that helps substitutes with etching tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201939921U CN201704390U (en) | 2010-05-18 | 2010-05-18 | Waste heat recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201939921U CN201704390U (en) | 2010-05-18 | 2010-05-18 | Waste heat recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201704390U true CN201704390U (en) | 2011-01-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201939921U Expired - Fee Related CN201704390U (en) | 2010-05-18 | 2010-05-18 | Waste heat recovery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201704390U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643193A (en) * | 2013-12-16 | 2014-03-19 | 广东迪生电力钢构器材有限公司 | Burning waste heat recycling system on hot-dipping galvanizing production line |
| CN112481570A (en) * | 2019-09-12 | 2021-03-12 | 西藏中驰集团股份有限公司 | Novel galvanizing process flow and assembly line used by same |
-
2010
- 2010-05-18 CN CN2010201939921U patent/CN201704390U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643193A (en) * | 2013-12-16 | 2014-03-19 | 广东迪生电力钢构器材有限公司 | Burning waste heat recycling system on hot-dipping galvanizing production line |
| CN112481570A (en) * | 2019-09-12 | 2021-03-12 | 西藏中驰集团股份有限公司 | Novel galvanizing process flow and assembly line used by same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20110112 Termination date: 20160518 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |