CN206670412U - A kind of flue gas heat recovery device of steam generator - Google Patents

A kind of flue gas heat recovery device of steam generator Download PDF

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Publication number
CN206670412U
CN206670412U CN201720272548.0U CN201720272548U CN206670412U CN 206670412 U CN206670412 U CN 206670412U CN 201720272548 U CN201720272548 U CN 201720272548U CN 206670412 U CN206670412 U CN 206670412U
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heat exchange
steam generator
snakelike
exchange tube
heat exchanger
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CN201720272548.0U
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Chinese (zh)
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陈勇
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Zhucheng Jintai Food Machinery Co Ltd
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Zhucheng Jintai Food Machinery Co Ltd
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Abstract

The utility model discloses a kind of flue gas heat recovery device of steam generator, it is related to steam generator technical field, including the heat exchanger more than two-stage for being arranged in flue, every grade of heat exchanger includes snakelike heat exchange tube, snakelike heat exchange tube is provided with water inlet and delivery port, the outer surface of snakelike heat exchange tube is provided with fin, and fin is set around snakelike heat exchange tube;Adjacent heat exchange device is connected in series, and the water inlet of the heat exchanger of the close steam generator body of delivery port connection of the heat exchanger away from steam generator body, the delivery port near the heat exchanger of steam generator body connect heat storage water tank in adjacent heat exchange device.The utility model small volume, heat exchange area is big, good effect of heat exchange, and heat exchange efficiency is high, greatly reduces smog discharge temperature, the waste heat in effective recycling flue gas, plays the effect of energy-saving and emission-reduction consumption reduction, reduces production cost.

Description

A kind of flue gas heat recovery device of steam generator
Technical field
The utility model belongs to steam generator technical field, more particularly to a kind of flue gas waste heat recovery of steam generator Utilize device.
Background technology
With developing rapidly for social economy, energy demand is increasing, and consumed resource is also increasing, the mankind for The destruction of environment also getting worse, and the energy also be becoming tight by day, under this situation, energy conservation is greatly paid attention to.At present, In steam generator field, the high-quality insulation material such as refractory fibre is used widely, and steam generator main body is radiated Loss is decreased obviously, and uses advanced burner, reduces imperfect combustion amount, air-fuel ratio also tends to rationally.However, It is still unhappy to reduce the technical progress of discharge flue gas heat loss and Mist heat recovering, in order to further improve the heat of steam generator Efficiency, reaches energy-saving purpose, and Mist heat recovering is also an important energy saving way.
Existing steam generator discharge flue-gas temperature is generally higher, is the main path that equipment wastes energy, power consumption is about 15% or so, flue gas carries amount of heat and scattered and disappeared without being utilized, and causes energy waste, increases resource consumption, increases production Cost.
Utility model content
The purpose of this utility model is to overcome above-mentioned technical deficiency, there is provided a kind of flue gas waste heat recovery of steam generator Utilize device, it is intended to it is generally higher to solve existing steam generator discharge flue-gas temperature, flue gas carry amount of heat scatter and disappear without It is utilized, causes energy waste, increase resource consumption, increases the technical problem of production cost.
To reach above-mentioned technical purpose, the utility model provides a kind of flue gas heat recovery dress of steam generator Put, including the heat exchanger more than two-stage for being arranged in flue, gap is left between the adjacent heat exchanger, described in every grade Heat exchanger includes snakelike heat exchange tube, and the snakelike heat exchange tube is located in flue, and one end of the snakelike heat exchange tube is water inlet, The other end is delivery port, and the extension plane of the snakelike heat exchange tube is vertical with the bearing of trend of flue, the snakelike heat exchange tube Outer surface is provided with fin, and the fin is set around the snakelike heat exchange tube;
The adjacent heat exchanger is connected in series, and the heat exchanger away from steam generator body goes out in the adjacent heat exchanger The water inlet of the heat exchanger of the close steam generator body of mouth of a river connection, near the water outlet of the heat exchanger of steam generator body Mouth connection heat storage water tank.
As an improvement the snakelike heat exchange tube is stainless steel tube.
As a further improvement, the heat exchanger is provided with three-level.
As a further improvement, the cross section of the fin is isosceles triangle, the fin and the snakelike heat exchange One end width of pipe connection is more than one end width away from the snakelike heat exchange tube.
As a further improvement, on the snakelike heat exchange tube fin along the snakelike heat exchange tube circumferential closure in a ring, The distance between the adjacent fin is equal.
Improved as another kind, fin is axially distributed in the shape of a spiral along the shape heat exchanger tube on the snakelike heat exchange tube.
As a further improvement, the snakelike heat exchange tube includes horizontally disposed straight length and connects adjacent straight length Bend loss, the water inlet are located at the bottom of the snakelike heat exchange tube, and the delivery port is located at the top of the snakelike heat exchange tube.
Due to being using above-mentioned technical proposal, the beneficial effects of the utility model:
The flue gas heat recovery device of steam generator provided by the utility model, it is snakelike provided with multi-stage heat exchanger Heat exchanger tube is stainless steel tube, small volume, can be arranged in flue, and snakelike heat exchange tube outer surface is provided with fin, effectively Increase the surface area of snakelike heat exchange tube, improve the heat exchange efficiency and heat transfer effect of water and flue gas in snakelike heat exchange tube so that discharge Flue-gas temperature up to 50-60 degree, greatly reduce smog discharge temperature, reduce heat and scatter and disappear, the water in snakelike heat exchange tube absorbs Temperature is raised after flue gas heat, and the elevated water of temperature is stored into heat storage water tank, is needed available for steam water or other is produced The process to use hot water, saves resource needed for heating water, plays the effect of energy-saving and emission-reduction consumption reduction, reduces production cost.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the structural representation of heat exchanger;
In accompanying drawing, 1- steam generator bodies, 2- flues, 3- heat exchangers, 31- snakelike heat exchange tubes, 311- water inlets, 312- Delivery port, 313- straight lengths, 314- bend loss, 4- heat storage water tanks.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining The utility model, it is not used to limit the utility model.
As Fig. 1 and Fig. 2 are jointly shown, the present embodiment provides a kind of flue gas heat recovery device of steam generator, In the flue 2 connected installed in steam generator body 1, including the heat exchanger 3 more than two-stage for being arranged in flue 2, Gap is left between adjacent heat exchange device 3, reduces resistance of the heat exchanger 3 to flue gas to a certain extent, every grade of heat exchanger 3 includes snake Shape heat exchanger tube 31, snakelike heat exchange tube 31 are located in flue 2, and one end of snakelike heat exchange tube 31 is water inlet 311, and the other end is water outlet Mouth 312, the extension plane of snakelike heat exchange tube 31 is vertical with the bearing of trend of flue 2, and the outer surface of snakelike heat exchange tube 31 is provided with wing Piece, fin are set around snakelike heat exchange tube 31;
Adjacent heat exchange device 3 is connected in series, the delivery port of the heat exchanger 3 away from steam generator body 1 in adjacent heat exchange device 3 The water inlet 311 of the heat exchanger 3 of the close steam generator body 1 of 312 connections, near the heat exchanger 3 of steam generator body 1 Delivery port 312 connect heat storage water tank 4, the water in heat storage water tank 4 can be used for heating to produce steam with can be additionally used in other needs The process of hot water, heat storage water tank 4 can also be not provided with actual use, the delivery port 312 of snakelike heat exchange tube 31 is directly connected to The collecting chamber of steam generator body 1.
As the concrete application of the present embodiment, snakelike heat exchange tube 31 is stainless steel tube, has excellent heat transfer property and resistance to Burn into resistance to elevated temperatures.
In the present embodiment, heat exchanger 3 is provided with three-level, and three-level heat exchanger 3 is connected in series, the water heating effect in heat exchanging device 3 Fruit is good.
In the present embodiment, specifically, the cross section of fin may be configured as isosceles triangle, and fin connects with snakelike heat exchange tube 31 One end width connect is more than one end width away from snakelike heat exchange tube 31, and fin was along snakelike heat exchange tube 31 weeks on snakelike heat exchange tube 31 To closure in a ring, the distance between adjacent fins are equal, can also fin be axially distributed in the shape of a spiral along snakelike heat exchange tube 31, Ensure the heat exchange efficiency and heat transfer effect of heat exchanger.
In the present embodiment, snakelike heat exchange tube 31 includes horizontally disposed straight length 313 and connects the curved of adjacent straight length 313 Pipeline section 314, water inlet 311 are located at the bottom of snakelike heat exchange tube 31, and delivery port 312 is located at the top of snakelike heat exchange tube 31.
The flue gas heat recovery device of steam generator provided by the utility model, small volume, heat exchange area is big, Heat exchange efficiency is high, good effect of heat exchange, the waste heat in effective recovered flue gas, and the water after heat exchange can be utilized, and be played The effect of energy-saving and emission-reduction consumption reduction, reduces enterprise's production cost, and the present embodiment in actual use, can drop smog discharge temperature It is low to 50-60 degrees Celsius, even lower, there is very important practice significance.
Specific embodiment of the present utility model described above, the restriction to scope of protection of the utility model is not formed. Any various other corresponding changes and deformation made according to technical concept of the present utility model, should be included in this practicality In new scope of the claims.

Claims (7)

1. the flue gas heat recovery device of a kind of steam generator, it is characterised in that including for being arranged in flue Heat exchanger more than two-stage, gap is left between the adjacent heat exchanger, every grade of heat exchanger includes snakelike heat exchange tube, institute State snakelike heat exchange tube to be located in flue, one end of the snakelike heat exchange tube is water inlet, and the other end is delivery port, described snakelike to change The extension plane of heat pipe is vertical with the bearing of trend of flue, and the outer surface of the snakelike heat exchange tube is provided with fin, the fin ring Set around the snakelike heat exchange tube;
The adjacent heat exchanger is connected in series, the delivery port of the heat exchanger away from steam generator body in the adjacent heat exchanger The water inlet of the heat exchanger of the close steam generator body of connection, the delivery port near the heat exchanger of steam generator body connect Connect heat storage water tank.
2. the flue gas heat recovery device of steam generator according to claim 1, it is characterised in that described snakelike Heat exchanger tube is stainless steel tube.
3. the flue gas heat recovery device of steam generator according to claim 2, it is characterised in that the heat exchange Device is provided with three-level.
4. the flue gas heat recovery device of the steam generator according to claim 1,2 or 3, it is characterised in that institute The cross section for stating fin is isosceles triangle, and one end width that the fin is connected with the snakelike heat exchange tube is more than away from described One end width of snakelike heat exchange tube.
5. the flue gas heat recovery device of the steam generator according to claim 1,2 or 3, it is characterised in that institute Fin is stated on snakelike heat exchange tube along the snakelike heat exchange tube circumferential closure in a ring, the distance between adjacent described fin is equal.
6. the flue gas heat recovery device of the steam generator according to claim 1,2 or 3, it is characterised in that institute Fin on snakelike heat exchange tube is stated axially to be distributed in the shape of a spiral along the shape heat exchanger tube.
7. the flue gas heat recovery device of the steam generator according to claim 1,2 or 3, it is characterised in that institute Stating snakelike heat exchange tube includes horizontally disposed straight length and connects the bend loss of adjacent straight length, and the water inlet is located at the snake The bottom of shape heat exchanger tube, the delivery port are located at the top of the snakelike heat exchange tube.
CN201720272548.0U 2017-03-21 2017-03-21 A kind of flue gas heat recovery device of steam generator Active CN206670412U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720272548.0U CN206670412U (en) 2017-03-21 2017-03-21 A kind of flue gas heat recovery device of steam generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720272548.0U CN206670412U (en) 2017-03-21 2017-03-21 A kind of flue gas heat recovery device of steam generator

Publications (1)

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CN206670412U true CN206670412U (en) 2017-11-24

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Application Number Title Priority Date Filing Date
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Country Status (1)

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CN (1) CN206670412U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108692592A (en) * 2018-05-17 2018-10-23 上海电力学院 Using the tube-plate type heat-exchanger of foam copper product

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108692592A (en) * 2018-05-17 2018-10-23 上海电力学院 Using the tube-plate type heat-exchanger of foam copper product

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