CN203719469U - Pressure-bearing smoke waste heat exchanger - Google Patents

Pressure-bearing smoke waste heat exchanger Download PDF

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Publication number
CN203719469U
CN203719469U CN201420076547.5U CN201420076547U CN203719469U CN 203719469 U CN203719469 U CN 203719469U CN 201420076547 U CN201420076547 U CN 201420076547U CN 203719469 U CN203719469 U CN 203719469U
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China
Prior art keywords
header
bobbin carriage
pressure
tube
fume afterheat
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CN201420076547.5U
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Chinese (zh)
Inventor
贾国川
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BEIJING HAOJIA HEATING AND AIR CONDITIONING TECHNOLOGY SERVICE Co Ltd
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BEIJING HAOJIA HEATING AND AIR CONDITIONING TECHNOLOGY SERVICE Co Ltd
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Priority to CN201420076547.5U priority Critical patent/CN203719469U/en
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Abstract

The utility model relates to a pressure-bearing smoke waste heat exchanger, and belongs to the technical field of thermal power engineering. The pressure-bearing smoke waste heat exchanger comprises a tube box group and smoke boxes arranged on two sides of the tube box group, wherein the tube box group consists of a plurality of tube boxes, the tops of the tube boxes are connected with an upper collecting box, the bottoms of the tube boxes are connected with a lower collecting box, the tube box group is covered with a thermal insulation film, and a thermal insulation layer is formed between the thermal insulation film and the tube box group; and two ends of each cylindrical header are sealed and welded by sealing heads, discharge tube holes are formed in the inner sides of the headers, and metal finned tubes are welded at the discharge tube holes. The pressure-bearing smoke waste heat exchanger has the benefits as follows: the heat exchange effect is better during heat exchange by means of the designed headers, and the heat exchanger is integrally firmer, can be connected with the water side and the gas side of a boiler system, and is simple in design and convenient to use.

Description

A kind of pressure-bearing fume afterheat interchanger
Technical field
The utility model relates to a kind of pressure-bearing fume afterheat interchanger, belongs to Thermal Power Engineering technical field.
Background technology
In the useless flue gas of Industrial Boiler, industrial heating furnace discharge, contain a large amount of heats, these heats account for 15-40% of total amount of heat, are not mostly utilized and are directly discharged in atmosphere, cause and large waste.By afterbody, install pressure-bearing fume afterheat interchanger additional, can, the heat reclaiming for heating boiler feedwater, domestic hot-water, production labor skill hot water, heating hot water etc., reach the object of saving the energy, reducing atmosphere pollution.The structural design of oil-burning gas-fired boiler and waste heat recovery apparatus thereof, manufacture, installation, repairing transformation should meet relevant regulations, the rules of State Council and National Quality & Technology Inspection Bureau.Except having higher fractional energy savings, meet energy conservation standard requirement, the structural design of fume afterheat interchanger also should meet the relevant criterion requirement of boiler, design of pressure vessels and manufacture, otherwise does not allow to be directly connected with steam generator system.Flue gas waste heat recovery belongs to low temperature reclaims, and flue-gas temperature is mostly 200 ℃ of left and right.Because reclaiming, low-temperature flue gas waste heat needs a large amount of heat exchange areas, so require waste heat recovery apparatus should have enough heat exchange areas to make again equipment volume be unlikely to that excessive, equipment fume side resistance is unlikely to too high and the burning that affects boiler and industrial heating furnace, so the structural design of fume afterheat interchanger and heat exchange element are selected to key problem in technology.At present, the known flue gas waste heat recoverer for oil-burning gas-fired boiler, industrial heating furnace roughly has following several according to heat exchange element classification: heat pipe-type, and light pipe type, plate-sheet-type, finned.Wherein heat pipe-type, light pipe type mostly are carbon steel manufacture, and heating surface area is limited, be difficult for arranging a large amount of heating surface areas, so the rate of recovery are not high and not corrosion-resistant.My heat recovery device of flue gas of plate-type heat exchange element is pressed into bellows-shaped to improve the coefficient of heat transfer with corrosion resistant plate, although corrosion-resistant but stainless heat transfer coefficient is much lower compared with carbon steel, heat-transfer effect is poor, when the out-of-date resistance of smoke gas flow larger, also should not arrange a lot, so the rate of recovery is also lower (referring to Chinese patent: ZL200720050950.0).Finned flue gas waste heat recoverer is (referring to Chinese patent: although ZL200820178144.6) solved the problem that above-mentioned all kinds of flue gas heat-exchange unit exists, but its water-in and water-out side structure is trapezoidal case structure, do not meet boiler, the requirement of construction of pressure vessel manufacturer's standard, can not directly be connected with water side, the vapour side of steam generator system.The structural shape great majority of above-mentioned all kinds of flue gas waste heat recoverers do not meet the manufacturer's standard requirement of boiler, pressure vessel.
Summary of the invention
The purpose of this utility model is to improve existing low-temperature flue gas waste heat interchanger organic efficiency, proposes a kind of pressure-bearing fume afterheat interchanger, makes its structure meet boiler, the requirement of pressure vessel manufacturer's standard completely.
The utility model solves the technical scheme that its technical problem adopts: comprise the smoke box that bobbin carriage group and bobbin carriage group both sides are provided with, bobbin carriage group consists of several bobbin carriages, the top of bobbin carriage is connected with top header, the bottom of bobbin carriage is connected with bottom header, bobbin carriage group is coated with insulation film, between insulation film and bobbin carriage group, forms heat-insulation layer.
Bobbin carriage comprises header, metal fin pipe, bobbin carriage square flange, water route base, bobbin carriage side plate, several metal fin tube side-by-sides are placed, several metal fin pipes two ends connect by header, metal fin pipe and header outside are provided with bobbin carriage square flange, outside, header one end is provided with water route base, and the two ends of header are respectively equipped with bobbin carriage side plate.
Header lower end, top and header upper end, bottom are equipped with several short tube flanges, and header is made by seamless steel pipe.
Header is cylindrical, and header two ends are welded with end socket sealing, and header inner side is provided with comb hole and the welding of metal fin pipe.
Metal fin pipe replaces with one of steel-aluminum composite fin tube, aciculiform finned tube, serrated fin pipe, wound finned tube, ND steel finned tube.
Bobbin carriage group is comprised of two or more bobbin carriages.
Top header and bottom header are respectively equipped with two or more short tube flanges.
Benefit of the present utility model is: the heat transfer effect when design of header makes heat exchange is better, also makes integral body more firm, can directly be connected with the gentle side of water side of steam generator system, and simplicity of design, easy to use.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is the utility model overall structure side view;
Fig. 3 is the cutaway view of the A-A of the utility model Fig. 1;
Fig. 4 is the utility model channel structure schematic diagram;
Fig. 5 is the cutaway view of the B-B of the utility model Fig. 4;
Fig. 6 is the top view of the utility model bobbin carriage.
Below in conjunction with drawings and Examples, the utility model is further illustrated.
The specific embodiment
When considered in conjunction with the accompanying drawings, by the detailed description with reference to below, can more completely understand better the utility model and easily learn wherein many advantages of following, but accompanying drawing described herein is used to provide further understanding of the present utility model, form a part of the present utility model, schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.
Obviously, the many modifications and variations that those skilled in the art do based on aim of the present utility model belong to protection domain of the present utility model.
Embodiment 1: as shown in Figures 1 to 5, comprise smoke box 1, top header 2, bottom header 3, bobbin carriage 4, smoke box 5, metal fin pipe 7, insulation film 8, bobbin carriage side plate 10, water route base 11, water route base 12, bobbin carriage square flange 20, bobbin carriage square flange 21, short tube flange 30, short tube flange 31, header 40, header 41, four bobbin carriages 4 form bobbin carriage group, the interior N of a bobbin carriage 4 metal fin pipe 7 is placed side by side, as shown in Figure 4, ten metal fin 7 pipe two ends are connected with respectively header 40, header 41, header 40 and header 41 inner sides are split into comb hole and 7 welding of metal fin pipe form waterway channel, metal fin pipe 7 and header outside are provided with bobbin carriage square flange 20 and bobbin carriage square flange 21, header 40 connection water route, one end bases 11, header 41 connection water route, one end bases 12, between header 40 and header 41 two ends, bobbin carriage side plate 10 is all housed, smoke box 1 and smoke box 5 are equipped with respectively in bobbin carriage group both sides, the water inlet water route base 11 of bobbin carriage 4 is connected with four short tube flanges 30 of top header 2, the water outlet water route base 12 of bobbin carriage 4 is connected with four short tube flanges 31 of bottom header 3, bobbin carriage group is coated with insulation film 8, between insulation film 8 and bobbin carriage group, form heat-insulation layer, cold water enters bobbin carriage 4 by top header 2, by being flowed out by bottom header 3 after bobbin carriage 4 heating, completes wall-type heat exchange process, flue gas is entered by smoke box 1 one sides, and the smoke box 5 by opposite side after lowering the temperature with bobbin carriage 4 heat exchange flows out.
Embodiment 2: bobbin carriage group is comprised of four or more bobbin carriage 4, and short tube flange 31 quantity of the short tube flange 30 of top header 2 and bottom header 3 are corresponding with bobbin carriage quantity Matching.
Embodiment 3: metal fin pipe 7 replaces with one of steel-aluminum composite fin tube, aciculiform finned tube, serrated fin pipe, wound finned tube, ND steel finned tube.
As mentioned above, embodiment of the present utility model is explained, but as long as not departing from fact inventive point of the present utility model and effect can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, within such variation is also all included in protection domain of the present utility model.

Claims (7)

1. a pressure-bearing fume afterheat interchanger, it is characterized in that: comprise the smoke box that bobbin carriage group and bobbin carriage group both sides are provided with, bobbin carriage group consists of several bobbin carriages, the top of bobbin carriage is connected with top header, the bottom of bobbin carriage is connected with bottom header, bobbin carriage group is coated with insulation film, between insulation film and bobbin carriage group, forms heat-insulation layer.
2. a kind of pressure-bearing fume afterheat interchanger according to claim 1, it is characterized in that: bobbin carriage comprises header, metal fin pipe, bobbin carriage square flange, water route base, bobbin carriage side plate, several metal fin tube side-by-sides are placed, several metal fin pipes two ends connect by header, metal fin pipe and header outside are provided with bobbin carriage square flange, outside, header one end is provided with water route base, and the two ends of header are respectively equipped with bobbin carriage side plate.
3. a kind of pressure-bearing fume afterheat interchanger according to claim 1, is characterized in that: header lower end, top and header upper end, bottom are equipped with several short tube flanges, and header is made by seamless steel pipe.
4. a kind of pressure-bearing fume afterheat interchanger according to claim 2, is characterized in that: header is cylindrical, and header two ends are welded with end socket sealing, and header inner side is provided with comb hole and the welding of metal fin pipe.
5. a kind of pressure-bearing fume afterheat interchanger according to claim 2, is characterized in that: metal fin pipe replaces with one of steel-aluminum composite fin tube, aciculiform finned tube, serrated fin pipe, wound finned tube, ND steel finned tube.
6. a kind of pressure-bearing fume afterheat interchanger according to claim 1, is characterized in that: bobbin carriage group is comprised of two or more bobbin carriages.
7. a kind of pressure-bearing fume afterheat interchanger according to claim 3, is characterized in that: top header and bottom header are respectively equipped with two or more short tube flanges.
CN201420076547.5U 2014-02-21 2014-02-21 Pressure-bearing smoke waste heat exchanger Active CN203719469U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420076547.5U CN203719469U (en) 2014-02-21 2014-02-21 Pressure-bearing smoke waste heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420076547.5U CN203719469U (en) 2014-02-21 2014-02-21 Pressure-bearing smoke waste heat exchanger

Publications (1)

Publication Number Publication Date
CN203719469U true CN203719469U (en) 2014-07-16

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CN201420076547.5U Active CN203719469U (en) 2014-02-21 2014-02-21 Pressure-bearing smoke waste heat exchanger

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CN (1) CN203719469U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104633938A (en) * 2015-01-27 2015-05-20 泛亚维德新能源科技(北京)有限公司 Electric boiler heat exchanger
CN106524510A (en) * 2016-10-20 2017-03-22 天津理工大学 Boiler flue gas waste heat recycling device
CN111750700A (en) * 2019-03-29 2020-10-09 马勒国际有限公司 Heat exchanger

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104633938A (en) * 2015-01-27 2015-05-20 泛亚维德新能源科技(北京)有限公司 Electric boiler heat exchanger
CN104633938B (en) * 2015-01-27 2018-01-30 泛亚维德新能源科技(北京)有限公司 Electric boiler heat exchanger
CN106524510A (en) * 2016-10-20 2017-03-22 天津理工大学 Boiler flue gas waste heat recycling device
CN111750700A (en) * 2019-03-29 2020-10-09 马勒国际有限公司 Heat exchanger

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