CN201852129U - Air preheater - Google Patents

Air preheater Download PDF

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Publication number
CN201852129U
CN201852129U CN2010205715559U CN201020571555U CN201852129U CN 201852129 U CN201852129 U CN 201852129U CN 2010205715559 U CN2010205715559 U CN 2010205715559U CN 201020571555 U CN201020571555 U CN 201020571555U CN 201852129 U CN201852129 U CN 201852129U
Authority
CN
China
Prior art keywords
air
main pipe
flue gas
valve
flue
Prior art date
Application number
CN2010205715559U
Other languages
Chinese (zh)
Inventor
李建锋
Original Assignee
李建锋
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 李建锋 filed Critical 李建锋
Priority to CN2010205715559U priority Critical patent/CN201852129U/en
Application granted granted Critical
Publication of CN201852129U publication Critical patent/CN201852129U/en

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Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/34Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Abstract

The utility model discloses an air preheater, which comprises three heat accumulators, a smoke feeding main pipe, a smoke discharging main pipe, a gas feeding main pipe, a gas discharging main pipe, a plurality of flue gas pipelines, a plurality of air pipelines and a plurality of valves. The two ends of each heat accumulator are respectively provided with a flue gas pipeline and an air pipeline, one end of each heat accumulator is respectively connected with the smoke feeding main pipe and the gas discharging main pipe through the corresponding flue gas pipeline and the corresponding air pipeline, and the other end of each heat accumulator is respectively connected with the smoke discharging main pipe and the gas feeding main pipe through the corresponding flue gas pipeline and the corresponding air pipeline. Each flue gas pipeline and each air pipeline are respectively provided with a valve. The preheater can effectively reduce air leakage. Moreover, the utility model has the beneficial effects that the preheater has a high heating speed and stable performance, is easy to maintain and the like.

Description

Air preheater
Technical field
The utility model relates to the gas energy reclaimer, exactly is air preheater.
Background technology
Need utilize air to reclaim the place of high-temperature flue gas energy at present boiler or other, general all to need with heat exchanger be the energy of air with the power conversion of high-temperature gas, and employed heat exchanger mainly contains two kinds of tubular air preheater or rotary regenerative air preheaters.But when maximizing, the subject matter that tubular air preheater faces be bulky, heat exchange efficiency is lower, if contain corrosive gas in the flue gas, tubular preheater also can face the cold end corrosion problem; And the heat exchange efficiency of rotary regenerative air preheater is higher, structure is compact, but it is comparatively serious to leak out, and can accomplish that 6% air leak rate of air curtain has been quite difficult.
The utility model content
At the existing bigger problem of rotary air preheater air leak, the air preheater that provides a kind of air leak rate of air curtain low is provided the purpose of this utility model.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of novel air preheater comprises three heat storages, advances the female pipe of cigarette, the female pipe of smoke evacuation, the female pipe of air inlet, the female pipe of exhaust, flue, air duct and valve.Flue and air duct all are equipped with in the two ends of each heat storage.Each heat storage all have an end by flue and air duct respectively with advance the female pipe of cigarette and the female pipe of exhaust is connected, the other end all is connected with female pipe of smoke evacuation and air inlet mother pipe respectively by flue and air duct.On every flue and the air duct valve is installed all.
The pipe design of the utility model uniqueness can make air and flue gas alternating current through three heat storages, can switch by opening or closing relevant valve.Flue gas and air flow through two heat storages respectively, wherein high-temperature flue gas heating heat storage and another heat storage heats air; Behind the process certain hour, flue gas flows through the 3rd heat storage and heats the 3rd heat storage through the switching of valve.The air heat storage of flowing through and being heated by flue gas then through the switching of valve; Switch through valve once more through flue gas behind the certain hour again and add the heat storage that exothermic heat is given air.So move in circles, realized the heating of high-temperature flue gas air.This preheater can not only effectively solve the problem of leaking out, and has also that firing rate is fast, stable performance, is easy to beneficial effect such as maintenance.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Description of reference numerals is as follows:
1,2,3---heat storage; 4---advance the female pipe of cigarette; 5---the female pipe of smoke evacuation; 6---the female pipe of air inlet; 7---the female pipe of exhaust; 8,9,10,11,12,13---flue; 14,15,16,17,18,19---air duct; 20,21,22,23,24,25,26,27,28,29,30,31---valve
As shown in Figure 1, this air preheater mainly is made up of heat storage 1,2,3 and pipeline and valve, the two ends of heat storage 1,2,3 are connected with 11 with flue 10 and 13,9 and 12,8 respectively, also are connected with 16 with air duct 17 and 14,18 and 15,19 respectively simultaneously; The other end of flue 10,9,8 with advance the female pipe 4 of cigarette and be connected, the other end of flue 13,12,11 and smoke evacuation be female manages 5 and is connected; The other end of air duct 14,15,16 is connected with the female pipe 6 of air inlet, and the other end of air duct 17,18,19 is connected with the female pipe 7 of exhaust; Valve 20,21,22,23,24,25 is installed above the flue 8,9,10,11,12,13; Valve 29,30,31,26,27,28 is installed above the air duct 14,15,16,17,18,19.
In use, suppose flow through heat storage 1 and heat heat storage 1 of a certain moment flue gas, flow through heat storage 2 and heated of air by heat storage 2, the on off state of each valve is as shown in the table so:
The valve numbering 20 21 22 23 24 25
On off state Close Close Open Close Close Open
The valve numbering 26 27 28 29 30 31
On off state Close Open Close Close Open Close
After after a while, flue gas heating heat storage 1 finishes, and begins to heat heat storage 3, and need open valve 20 and 23, valve-off 22 and 25 then this moment earlier.Valve switch state after the switching is as shown in the table:
The valve numbering 20 21 22 23 24 25
On off state Open Close Close Open Close Close
The valve numbering 26 27 28 29 30 31
On off state Close Open Close Close Open Close
After the flue gas flow switching is finished, switch the air flow process immediately, promptly open valve 26 and 29 earlier, then valve-off 27 and 30.This moment, heat storage 1 began air is heated, and the on off state of each valve is as shown in the table:
The valve numbering 20 21 22 23 24 25
On off state Open Close Close Open Close Close
The valve numbering 26 27 28 29 30 31
On off state Open Close Close Open Close Close
After passing through certain hour again, flue gas flow switches once more, begins to heat heat storage 2; The air flow process is then switched then, begins to add hot-air by heat storage 3.So move in circles, the heat that is contained in the realization high-temperature flue gas is passed to air.
More than the embodiment with three heat storages is illustrated.In actual use, can adopt three heat storages, perhaps the mode of more heat storage parallel connection is used, and perhaps reliable for system, at least 2 valves can be installed in series on every flue and air duct.In addition, in order to reduce system's heat loss, the outer surface of each heat storage and pipeline valve also needs covering insulation material.
The present invention is not limited to above-mentioned preferred forms, and anyone can draw other various forms of products under enlightenment of the present invention.Though but on its shape or structure, do any variation, every identical with the present invention or akin technical scheme is all within its protection domain.

Claims (1)

1. novel air preheater, it is characterized in that, comprise three heat storages, advance the female pipe of cigarette, the female pipe of smoke evacuation, the female pipe of air inlet, the female pipe of exhaust, flue, air duct and valve, flue and air duct all are equipped with in the two ends of each heat storage, each heat storage all have an end by flue and air duct respectively with advance the female pipe of cigarette and exhaust mother pipe is connected, the other end all is connected with female pipe of smoke evacuation and air inlet mother pipe respectively by flue and air duct, on every flue and the air duct valve is installed all.
CN2010205715559U 2010-10-22 2010-10-22 Air preheater CN201852129U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010205715559U CN201852129U (en) 2010-10-22 2010-10-22 Air preheater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205715559U CN201852129U (en) 2010-10-22 2010-10-22 Air preheater

Publications (1)

Publication Number Publication Date
CN201852129U true CN201852129U (en) 2011-06-01

Family

ID=44094520

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010205715559U CN201852129U (en) 2010-10-22 2010-10-22 Air preheater

Country Status (1)

Country Link
CN (1) CN201852129U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103225962A (en) * 2013-04-25 2013-07-31 安丰宝 Antiseptic air preheater device used for kilns
CN104456947A (en) * 2014-10-17 2015-03-25 北京航天益森风洞工程技术有限公司 Heat accumulating type pure air heating system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103225962A (en) * 2013-04-25 2013-07-31 安丰宝 Antiseptic air preheater device used for kilns
CN104456947A (en) * 2014-10-17 2015-03-25 北京航天益森风洞工程技术有限公司 Heat accumulating type pure air heating system
CN104456947B (en) * 2014-10-17 2018-02-13 北京航天益森风洞工程技术有限公司 Heat accumulating type pure air heating system

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110601

Termination date: 20111022

C17 Cessation of patent right