CN204555274U - A kind of heat transfer structure of boiler chimney heat utilization - Google Patents

A kind of heat transfer structure of boiler chimney heat utilization Download PDF

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Publication number
CN204555274U
CN204555274U CN201420840185.2U CN201420840185U CN204555274U CN 204555274 U CN204555274 U CN 204555274U CN 201420840185 U CN201420840185 U CN 201420840185U CN 204555274 U CN204555274 U CN 204555274U
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CN
China
Prior art keywords
heat
chimney
heat exchanger
boiler
exchanger fin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420840185.2U
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Chinese (zh)
Inventor
王勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thousand-Island Lake Chunan County Silk Development Co Ltd
Original Assignee
Thousand-Island Lake Chunan County Silk Development Co Ltd
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Filing date
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Priority to CN201420840185.2U priority Critical patent/CN204555274U/en
Application granted granted Critical
Publication of CN204555274U publication Critical patent/CN204555274U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a kind of heat transfer structure of boiler chimney heat utilization, for the problem of boiler exhaust gas pipe UTILIZATION OF VESIDUAL HEAT IN, it is characterized in that comprising chimney breast, wrap in the outer field waterpipe of chimney breast, some the heat exchanger fins identical with walking cigarette direction are provided with in described chimney breast, heat exchanger fin is hollow-core construction, and the outlet of heat exchanger fin hollow-core construction communicates with waterpipe.Walk cigarette smoke evacuation route along it, utilize hollow heat exchanger fin diversion to enter chimney breast, make rate of heat exchange reach best, make full use of waste heat of chimney, energy-saving effect is obvious.

Description

A kind of heat transfer structure of boiler chimney heat utilization
Technical field
The utility model relates to flue heat utilization technology, especially a kind of heat transfer structure of boiler chimney heat utilization.
Background technology
It is energy-conservation a kind of conventional means that flue residue heat is recycled, as patent publication No. a kind of device for recovering residual heat of flue disclosed in CN103672834A, comprise heat exchange box, the both ends of heat exchange box length direction are provided with flue connector, vertically be provided with finned tube row in heat exchange box, each finned tube includes body and the fin of brazing on body; Heat exchange box top is provided with header tank, has gas-liquid separator above header tank by support installing, is connected bottom gas-liquid separator by communicating pipe with header tank; Gas-liquid separator is connected with tedge, and after the bottom bending of tedge, level stretches into heat exchange box top and forms top house steward, and top house steward is all connected with the top of each finned tube; Header tank is connected with down-comer, and after the bottom bending of down-comer, level stretches into the bottom of heat exchange box and forms bottom house steward, and bottom house steward is all connected with the bottom of each finned tube.This is the dynamic structure of a kind of density contrast relying on heat exchange to be formed as Hydraulic Circulation.And for example patent publication No. is a kind of flue heat interchanger of CN103557725A, comprise and exchange core, outer tube, left end case, right end plate, exchanging core is through welding the rectangular duct surrounded by square hollow section steel, the outer wall periphery exchanging core is welded with the heat radiation convex tendon be made up of band steel, and the inner peripheral wall exchanging core is welded with the heat absorption convex tendon be made up of band steel; Outer tube is the rectangular duct be made up of internal layer, skin, exchanges core and is fixed in the tube chamber of outer tube; The passage surrounded by the inwall of outer tube and the outer wall of exchange core is called outer tunnel, and the interior tube chamber exchanging core is called internal channel, and during work, red-hot flue gas will exchange core heating by internal channel, be heated into hot-air for the exchanged core of air that air blast is combustion-supporting.This heat exchange surface utilizing the surface area of square hollow section steel, band steel to increase exchange core, its effect is not good.
Summary of the invention
The purpose of this utility model is the phenomenon for boiler exhaust gas pipe UTILIZATION OF VESIDUAL HEAT IN, provides a kind of reasonable in design, the heat transfer structure of the boiler chimney heat utilization that hot handing-over rate is high.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of heat transfer structure of boiler chimney heat utilization, it is characterized in that comprising chimney breast, wrap in the outer field waterpipe of chimney breast, some the heat exchanger fins identical with walking cigarette direction are provided with in described chimney breast, heat exchanger fin is hollow-core construction, and the outlet of heat exchanger fin hollow-core construction communicates with waterpipe.To have an appointment in the fume emission process of boiler the temperature of 150 DEG C, the technical program carries out heat exchange design for boiler exhaust gas system especially, heat exchanger fin is stretched into chimney breast inside, and can arrange the fin having more heat exchange effect on surface, all heat exchanger fins are all between water inlet pipe and outlet pipe.This case can in waterpipe set temperature meter, and at water inlet pipe and outlet pipe position, by-pass valve control is installed, carries out again changing the water in waterpipe after abundant heat exchange.
As preferably, described waterpipe bottom is provided with water inlet pipe, and top is provided with outlet pipe.Length and the highest segment length of chimney breast temperature of waterpipe match.
As preferably, some described heat exchanger fins are arranged along chimney breast even circumferential.
As preferably, described heat exchanger fin is flat hollow structure, and along walking the S-shaped curve-like in cigarette direction.Heat exchanger fin does not produce resistance, favourable smoke evacuation.
As preferably, the part that described heat exchanger fin is positioned at chimney breast is up-small and down-big trapezium structure.Reduce the resistance to water-flow in waterpipe, improve heat transfer effect.
As preferably, described outlet pipe is connected with attemperater, and attemperater communicates with boiler.In the boiler hyperactivity of fire phase, the water after heat exchange is stored, and can the water circulation heating in attemperater.
As preferably, described heat exchanger fin outer surface is provided with fin.
As preferably, the width that described heat exchanger fin is positioned at chimney breast is less than or equal to the radius of chimney breast.
Effective effect of the present utility model is: walk cigarette smoke evacuation route along it, utilize hollow heat exchanger fin diversion to enter chimney breast, and make rate of heat exchange reach best, make full use of waste heat of chimney, energy-saving effect is obvious.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is the plan structure schematic diagram of the utility model Fig. 1.
Fig. 3 is one of the present utility model trapezoidal heat exchanger fin using state structural representation.
In figure: 1. waterpipe, 2. heat exchanger fin, 3. water inlet pipe, 4. outlet pipe, 5. chimney breast.
Detailed description of the invention
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
As shown in Figure 1, the heat transfer structure of a kind of boiler chimney heat utilization of the present embodiment, it is the design carrying out waterpipe 1 at chimney breast 5 skin, in order to improve heat transfer effect, in chimney breast 5, the more than one piece heat exchanger fin 2 identical with walking cigarette direction is set, same cross-section, heat exchanger fin 2 arranges 3 along chimney breast 5 even circumferential, as shown in Figure 2.
Heat exchanger fin 2 is flattened tubular configuration, and the hollow-core construction outlet of heat exchanger fin 2 is positioned at waterpipe 1 tube wall position and communicates with waterpipe.Waterpipe 1 is also water heat exchange place, and bottom connects water inlet pipe 3, and top sets out water pipe 4, and valve is equipped with respectively in water inlet pipe 3 and outlet pipe 4 position.
Heat exchanger fin 2 length direction can be pressed sigmoid curve shape and make, and as a kind of embodiment, this structure not only increases heat exchange area, plays simultaneously and draws cigarette effect.
The part that heat exchanger fin 2 is positioned at chimney breast 5 can design as a kind of embodiment by up-small and down-big trapezium structure, and this structure mainly useful for reduces water flow resistance.
The present embodiment can coordinate the setting of attemperater, stores unnecessary hot water, and now outlet pipe 4 is connected with attemperater, attemperater communicates with boiler again, in boiler during water shortage, enters from attemperater diversion.
All heat exchanger fin 2 outer surfaces are provided with fin, favourable raising heat transfer effect.And the width that heat exchanger fin 2 is positioned at chimney breast 5 is less than the radius of chimney breast, must ensure that flue is unimpeded.
Above-described embodiment is to explanation of the present utility model, is not to restriction of the present utility model, anyly all belongs to protection domain of the present utility model to the structure after simple transformation of the present utility model.

Claims (8)

1. the heat transfer structure of a boiler chimney heat utilization, it is characterized in that comprising chimney breast (5), wrap in the outer field waterpipe of chimney breast (1), some the heat exchanger fins (2) identical with walking cigarette direction are provided with in described chimney breast, heat exchanger fin is hollow-core construction, and the outlet of heat exchanger fin hollow-core construction communicates with waterpipe.
2. the heat transfer structure of a kind of boiler chimney heat utilization according to claim 1, it is characterized in that described waterpipe (1) bottom is provided with water inlet pipe (3), top is provided with outlet pipe (4).
3. the heat transfer structure of a kind of boiler chimney heat utilization according to claim 1, is characterized in that described some heat exchanger fins (2) are arranged along chimney breast (5) even circumferential.
4. the heat transfer structure of a kind of boiler chimney heat utilization according to claim 1 or 2 or 3, is characterized in that described heat exchanger fin (2) is flat hollow structure, and along walking the S-shaped curve-like in cigarette direction.
5. the heat transfer structure of a kind of boiler chimney heat utilization according to claim 1, is characterized in that the part that described heat exchanger fin (2) is positioned at chimney breast (5) is up-small and down-big trapezium structure.
6. the heat transfer structure of a kind of boiler chimney heat utilization according to claim 2, it is characterized in that described outlet pipe (4) is connected with attemperater, attemperater communicates with boiler.
7. the heat transfer structure of a kind of boiler chimney heat utilization according to claim 1 or 2 or 3 or 5 or 6, is characterized in that heat exchanger fin (2) outer surface is provided with fin.
8. the heat transfer structure of a kind of boiler chimney heat utilization according to claim 1 or 2 or 3 or 5 or 6, is characterized in that width that described heat exchanger fin (2) is positioned at chimney breast (5) is less than or equal to the radius of chimney breast.
CN201420840185.2U 2014-12-26 2014-12-26 A kind of heat transfer structure of boiler chimney heat utilization Expired - Fee Related CN204555274U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420840185.2U CN204555274U (en) 2014-12-26 2014-12-26 A kind of heat transfer structure of boiler chimney heat utilization

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420840185.2U CN204555274U (en) 2014-12-26 2014-12-26 A kind of heat transfer structure of boiler chimney heat utilization

Publications (1)

Publication Number Publication Date
CN204555274U true CN204555274U (en) 2015-08-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420840185.2U Expired - Fee Related CN204555274U (en) 2014-12-26 2014-12-26 A kind of heat transfer structure of boiler chimney heat utilization

Country Status (1)

Country Link
CN (1) CN204555274U (en)

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150812

Termination date: 20151226

EXPY Termination of patent right or utility model