CN201496988U - Heat expansion device of air preheater - Google Patents

Heat expansion device of air preheater Download PDF

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Publication number
CN201496988U
CN201496988U CN2009202311194U CN200920231119U CN201496988U CN 201496988 U CN201496988 U CN 201496988U CN 2009202311194 U CN2009202311194 U CN 2009202311194U CN 200920231119 U CN200920231119 U CN 200920231119U CN 201496988 U CN201496988 U CN 201496988U
Authority
CN
China
Prior art keywords
preheater
expansion device
heat expansion
utility
model
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
CN2009202311194U
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Chinese (zh)
Inventor
马建南
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.)
CHANG ZHOU BAOYU INDUSTRIAL EQUIPMENT Co Ltd
Original Assignee
CHANG ZHOU BAOYU INDUSTRIAL EQUIPMENT Co Ltd
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 CHANG ZHOU BAOYU INDUSTRIAL EQUIPMENT Co Ltd filed Critical CHANG ZHOU BAOYU INDUSTRIAL EQUIPMENT Co Ltd
Priority to CN2009202311194U priority Critical patent/CN201496988U/en
Application granted granted Critical
Publication of CN201496988U publication Critical patent/CN201496988U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • 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 relates to a heat expansion device, in particular to a heat expansion device which is applied in an air preheater which preheats air entering a garbage furnace. The heat expansion device is arranged outside a wall of a box body of the preheater, and is provided with an upper and a lower elastic U-shaped boards, wherein the two sides of the U-shaped boards are respectively connected with a sealing plates, a heat exchange tube arranged in the preheater can extend out of the box body after penetrating through the sealing plates. The unique heat expansion device of the utility model can effectively reduce the affects of the heat exchange tube to the preheater after the heat exchange tube is heated and expanded, and greatly increases the service life of the preheater.

Description

A kind of air preheater thermal expansion equipment
Technical field
The utility model relates to a kind of thermal expansion equipment, enters a kind of preheater thermal expansion equipment of waste incineration furnace air in particular for preheating.
Background technology
In the incineration treatment of garbage process, for waste of low heating value is better burnt, guarantee that the combustion air that enters the incinerator burner hearth remains on stable temperature, combustion air must be through after the air preheater heating, just can send into incinerator.
Existing air preheat method adopts fume afterheat, contains steam and sulfuric acid vapor in the flue gas, and condition of work is more abominable, occurs cold end corrosion and stifled ash easily.In case cold end corrosion and stifled ash take place, will cause exhaust gases passes to stop up, the air inducing resistance increases, boiler positive pressuring combustion, this has not only reduced boiler output, even causes and be forced to blowing out.The result of corrosion can cause the air preheater pipe to reveal and damage, and causes seriously and leaks out, and causes that combustion conditions worsens, and the heating surface of having to often change when serious had both increased maintenance load and spillage of material, had influenced the normal operation of boiler again.Cold air enters fume side, also can reduce the cigarette temperature, quickens the speed of cold end corrosion and stifled ash, thereby influences the safe operation of boiler, reduces service life of equipment greatly, and flue gas is revealed also can cause environmental pollution.Adopt steam preheating just can solve above problem, but existing vapor preheater adopts the coiled heat exchanger tube, pipeline is heated and can expands, and influences preheater service life.
The utility model content
Technical problem to be solved in the utility model is: provide a kind of air preheater thermal expansion equipment, to solve original preheater short technical problem in service life.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of air preheater thermal expansion equipment, be arranged on the preheater box body wall outside, described thermal expansion equipment has two resilient U-shaped plates up and down, the heat exchanger tube that is provided with in each fixedly connected plate sealing together of U-shaped plate both sides, preheater passes sealing plate and stretches out outside the casing.
The beneficial effects of the utility model: unique thermal expansion equipment can reduce the influence of heat exchanger tube expanded by heating to preheater effectively, has increased the service life of preheater greatly.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is a main TV structure schematic diagram of the present utility model;
Wherein: 1, casing, 2, the U-shaped plate, 3, sealing plate, 4, heat exchanger tube.
The specific embodiment
With preferred embodiment the utility model is described in further detail in conjunction with the accompanying drawings now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
As shown in Figure 1, a kind of air preheater thermal expansion equipment is arranged on the preheater box body wall outside, and described thermal expansion equipment has two resilient U-shaped plates up and down, the heat exchanger tube that is provided with in each fixedly connected plate sealing together of U-shaped plate both sides, preheater passes sealing plate and stretches out outside the casing.
During use, air enters in the preheater from air inlet, and distributes fast evenly by deflector, and air is sent air outlet after by the Steam Heating in the heat exchanger tube.
The thermal expansion equipment of the utility model uniqueness can reduce the influence of heat exchanger tube expanded by heating to preheater effectively, has increased the service life of preheater greatly.

Claims (1)

1. air preheater thermal expansion equipment, be arranged on preheater casing (1) the wall outside, it is characterized in that: described thermal expansion equipment has two resilient U-shaped plates (2) up and down, the heat exchanger tube (4) that is provided with in each fixedly connected plate sealing together (3) of U-shaped plate (2) both sides, preheater passes sealing plate (3) and stretches out outside the casing (1).
CN2009202311194U 2009-09-03 2009-09-03 Heat expansion device of air preheater Expired - Fee Related CN201496988U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009202311194U CN201496988U (en) 2009-09-03 2009-09-03 Heat expansion device of air preheater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009202311194U CN201496988U (en) 2009-09-03 2009-09-03 Heat expansion device of air preheater

Publications (1)

Publication Number Publication Date
CN201496988U true CN201496988U (en) 2010-06-02

Family

ID=42440194

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009202311194U Expired - Fee Related CN201496988U (en) 2009-09-03 2009-09-03 Heat expansion device of air preheater

Country Status (1)

Country Link
CN (1) CN201496988U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102287845A (en) * 2011-05-19 2011-12-21 顾义 Elastic sealing fin device of rotary air pre-heater
CN104033605A (en) * 2014-06-18 2014-09-10 上海绿晖环保科技有限公司 Household garbage incineration waste heat boiler and header sealing device thereof
CN104654335A (en) * 2014-12-27 2015-05-27 哈尔滨锅炉厂有限责任公司 Heat pipe sealing device and sealing device for flue

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102287845A (en) * 2011-05-19 2011-12-21 顾义 Elastic sealing fin device of rotary air pre-heater
CN104033605A (en) * 2014-06-18 2014-09-10 上海绿晖环保科技有限公司 Household garbage incineration waste heat boiler and header sealing device thereof
CN104033605B (en) * 2014-06-18 2016-08-24 上海绿晖环保科技有限公司 The collection box seal device of domestic garbage incineration waste heat boiler and domestic garbage incineration waste heat boiler
CN104654335A (en) * 2014-12-27 2015-05-27 哈尔滨锅炉厂有限责任公司 Heat pipe sealing device and sealing device for flue
CN104654335B (en) * 2014-12-27 2017-06-06 哈尔滨锅炉厂有限责任公司 For the heat pipe seal and encapsulating method of flue

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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: 20100602

Termination date: 20140903

EXPY Termination of patent right or utility model