CN201779855U - Primary and secondary heat exchange integrated fuel gas condensation heat exchanger - Google Patents

Primary and secondary heat exchange integrated fuel gas condensation heat exchanger Download PDF

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Publication number
CN201779855U
CN201779855U CN2010202926952U CN201020292695U CN201779855U CN 201779855 U CN201779855 U CN 201779855U CN 2010202926952 U CN2010202926952 U CN 2010202926952U CN 201020292695 U CN201020292695 U CN 201020292695U CN 201779855 U CN201779855 U CN 201779855U
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CN
China
Prior art keywords
coil pipe
primary
heat
cavity
heat exchange
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
CN2010202926952U
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Chinese (zh)
Inventor
顾旭超
何仁举
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.)
Sichuan Haode Technology Co. Ltd.
Original Assignee
CHENGDU CITY FEIYUE MACHINERY MANUFACTURE 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 CHENGDU CITY FEIYUE MACHINERY MANUFACTURE Co Ltd filed Critical CHENGDU CITY FEIYUE MACHINERY MANUFACTURE Co Ltd
Priority to CN2010202926952U priority Critical patent/CN201779855U/en
Application granted granted Critical
Publication of CN201779855U publication Critical patent/CN201779855U/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
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]

Abstract

The utility model discloses a primary and secondary heat exchange integrated fuel gas condensation heat exchanger which comprises a housing consisting of a front housing, a rear housing and an enclosure frame, and is characterized in that a cavity which is coiled by a coil pipe and used for leading high-temperature flue gas to enter is arranged in the housing, and a waste gas channel cavity is formed between the outer wall of the cavity and the housing; a thermal insulation board for dividing the cavity into a main heat exchange cavity and a secondary heat exchange cavity is arranged at one fifth of the left side of the cavity; a condensed water discharge port is arranged at the bottom part of the enclosure frame; and the right lower end of the coil pipe is connected with a water outlet, and the left upper end of the coil pipe is connected with a water inlet. The primary and secondary heat exchange integrated fuel gas condensation heat exchanger integrates primary heat exchange and secondary heat exchange together, and can not only realize high heat efficiency (the heat efficiency can be improved by 10%-15%), low smoke exhaust temperature and low exhaust of CO, NOX and CO2, but also realize compact structure.

Description

The heat-exchange integrated condensing gas interchanger of primary and secondary
Technical field
The utility model relates to a kind of heat exchanger, is specifically related to the heat-exchange integrated condensing gas interchanger of a kind of primary and secondary.
Background technology
Conventional fast gas heater and wall hanging furnace heat exchanger exhaust gas temperature are than higher, a large amount of heats is discharged in the air, thereby cause the thermal efficiency of conventional heat exchanger low, generally only about 85% to 88%, in order to make full use of the waste heat of high temperature smoke evacuation waste gas, reach energy saving purposes, Guangdong Wanjiale Gas Burning Appliance Co., Ltd.'s application number: 200520053505.0 patent disclosure a kind of gas heater condensed heat exchanger, it is the fast gas heater condensed heat exchanger that China most up to now water heater producer uses, he has shell, exhaust opening, intake-outlet and row's condensation mouth of a river etc., the shortcoming of this structure: it is time heat exchanger just, must have main heat exchanger to cooperate just can finish the work, it is by absorbing 160 ℃-260 ℃ the high-temp waste gas of being discharged by main heat exchanger, make EGT drop to 40 ℃ of effects that realize condensation, thereby raising heat exchange efficiency, this isolating construction cost height, volume is big, waste material, Chengdu Qianfeng Heat Exchanger Co., Ltd.'s application number: the disclosed condensed heat exchanger of 200620035779.1 patent not can be realized the purpose of the integrated work of primary and secondary heat exchange, the high-temperature refractory that it does not separate the primary and secondary heat exchanging chamber, also only be equivalent to a main heat exchanger, do not reach condensation effect fully, exhaust gas temperature is very high, reaches the effect of not energy-saving and emission-reduction.
The utility model content
At above-mentioned weak point, the purpose of this utility model is to provide a kind of primary and secondary heat exchanger that makes integrated as a whole, to economize on material, dwindles the interchanger volume, improve the thermal efficiency, reach the heat-exchange integrated condensing gas interchanger of primary and secondary of the effect of energy-saving and emission-reduction.
To achieve these goals, the utility model has adopted following technical scheme: the heat-exchange integrated condensing gas interchanger of a kind of primary and secondary, comprise by fore shell, back cover and enclose the housing that frame constitutes, the cavity that supplies high-temperature flue gas to enter that has the coil pipe coiling to constitute in the wherein said housing forms the exhaust steam passage chamber between the outer wall of described cavity and housing; / 5th places, described cavity left side are provided with the thermal insulation board that cavity is separated into main heat exchange chamber and time heat exchanging chamber; The described frame bottom that encloses is provided with condensate drain outlet; Described coil pipe bottom righthand side is connected with delivery port, and the coil pipe left upper end is connected with water inlet.
Optimum, above-mentioned thermal insulation board is the alumina silicate thermal insulation board.
Above-mentioned adjacent coil pipe interbody spacer has at least two convex closures, and convex closure makes between adjacent coil pipe certain clearance, and the heat supply flue gas is dispersed into the exhaust steam passage chamber.
The utility model also can be provided with spacer between adjacent coil pipe, guaranteeing has certain clearance between adjacent coil pipe, and the heat supply flue gas distributes the exhaust steam passage chamber.
Above-mentioned fore shell, back cover, enclose frame, the coil pipe material is the 316L super-low carbon stainless steel.
Above-mentioned coil pipe cross section is ellipse, semicircle, circle or square.
The beneficial effects of the utility model are:
1. fore shell, back cover, enclose frame, coil pipe and all adopt the 316L super-low carbon stainless steel to make, can effectively prevent the corrosion of condensation sour water, handle and do not need to carry out surface anticorrosion, life of product is long.
2. have between convex closure or adjacent coil pipe at adjacent coil pipe interbody spacer spacer is set, guaranteed the formation gap between the coil pipe, improved the contact area of high-temperature flue gas and elliptical tube, guaranteed the unimpeded of flue gas simultaneously.
3. adopt thermal insulation board (1100 ℃ of high temperature alumina silicate thermal insulation board heatproofs--1300 ℃) that the primary and secondary heat exchanging chamber is separated, guarantee that the two-stage heat exchange working in the satisfactory working environment separately, realized the integrated of primary and secondary heat exchange.
4. take the integrated combustion gas condensed heat exchanger of primary and secondary of the present invention to realize that not only thermal efficiency height (can carry and do 10%-15%), exhaust gas temperature low (40 ℃-45 ℃), the CO that discharges are low, NOX and CO2 can reduce about 50%, reach the purpose of energy-saving and emission-reduction, realized that simultaneously the primary and secondary heat exchange is integrated in one, structure is tightly rapid, economize on resources, reduce production costs.
Description of drawings
Fig. 1 the utility model structural representation.
The adjacent coil pipe interbody spacer of Fig. 2 the utility model convex closure structure enlarged diagram.
Spacer structure enlarged diagram is set between the adjacent coil pipe of Fig. 3 the utility model.
Fig. 4 the utility model coil pipe cross section is provided with convex closure structure enlarged diagram one.
Fig. 5 the utility model coil pipe cross section is provided with convex closure structure enlarged diagram two.
Fig. 6 the utility model coil pipe cross section is provided with convex closure structure enlarged diagram three.
Among the figure: 1, back cover; 2, condensate drain outlet; 3, enclose basket; 4, coil pipe; 5, fore shell; 6, delivery port; 7, main heat exchange chamber; 8, exhaust steam passage chamber; 9, thermal insulation board; 10, gap; 11, water inlet; 12, inferior heat exchanging chamber; 13, convex closure; 14, spacer.
The specific embodiment
Below we will be described further the utility model in conjunction with the accompanying drawings:
As shown in Figure 1, the heat-exchange integrated condensing gas interchanger of a kind of primary and secondary, comprise by fore shell 5, back cover 1 and enclose the housing that frame 3 constitutes that the cavity that enters for high-temperature flue gas that has in the housing that coil pipe 4 coilings constitute forms exhaust steam passage chamber 8 between the outer wall of cavity and housing; / 5th places, cavity left side are provided with the thermal insulation board 9 that cavity is separated into main heat exchange chamber 7 and time heat exchanging chamber 12, enclose frame 3 bottoms and are provided with condensate drain outlet 2; Coil pipe 4 bottom righthand sides are connected with delivery port 6, and coil pipe 4 left upper ends are connected with water inlet 11.
As shown in Figure 2, adjacent coil pipe 4 interbody spacers have convex closure 13, and convex closure 13 makes certain clearance 10 between adjacent coil pipe, and the heat supply flue gas is dispersed into exhaust steam passage chamber 8.
The utility model also can be provided with spacer 14 between adjacent coil pipe as shown in Figure 3, and guaranteeing has certain clearance 10 between adjacent coil pipe, and the heat supply flue gas distributes exhaust steam passage chamber 8.
In the present embodiment, fore shell 5, back cover 1, enclose frame 3, coil pipe 4 materials are the 316L super-low carbon stainless steel.
As Fig. 3 to Fig. 5, coil pipe 4 cross sections of the present utility model can be ellipse, square, circular or semicircle.
In the utility model, the high-temperature flue gas that is produced behind the fuel gas buring enters in the main heat exchange chamber 7 from φ A, after water in high-temperature flue gas and the coil pipe 4 carries out the heat exchange first time (promptly realizing main heat exchange work), gap 10 by 4 in adjacent coil pipe enters exhaust steam passage chamber 8 again, 10 enter time heat exchanging chamber 12 by exhaust steam passage chamber 8 through the gap again, carry out the heat exchange second time (promptly realizing time heat exchange work) with the water in the coil pipe 4, coil pipe 4 has fully reclaimed the latent heat of vaporization in the waste gas that flows through behind the main heat exchange after the heat exchange for the second time, coil pipe 4 surfaces in inferior heat exchanging chamber 12 form condensed water, basket 3 is collected after condensate drain outlet 2 is discharged by enclosing, and the waste gas after the heat exchange second time is discharged by φ B place; The utility model is finished the heat exchange of primary and secondary the two poles of the earth respectively with time heat exchanging chamber 12 in main heat exchange chamber 7, absorbed the sensible heat behind the fuel gas buring in the main heat exchange chamber 7, there be (160 ℃-260 ℃ of EGTs) in water in the combustion gas with the form of steam, and through the form appearance (EGT 40 ℃-45 ℃) of the water in the waste gas after time heat exchanging chamber 12 further heat exchange with condensed water, the primary and secondary heat exchange is integrated, CO that realized that not only thermal efficiency height (can carry and do 10%-15%), exhaust gas temperature are low, discharges and NOX and CO2 are low, simultaneously compact conformation.After cold water enters coil pipe 4 twice heat exchange from water inlet 11, flow out hot water from delivery port 6.

Claims (7)

1. heat-exchange integrated condensing gas interchanger of primary and secondary, comprise by fore shell (5), back cover (1) and enclose the housing that frame (3) constitutes, it is characterized in that: coil pipe is arranged in the described housing, and (cavity that supplies high-temperature flue gas to enter that 40 coilings constitute forms exhaust steam passage chamber (8) between the outer wall of described cavity and housing; / 5th places, described cavity left side are provided with the thermal insulation board (9) that cavity is separated into main heat exchange chamber and time heat exchanging chamber; Described frame (3) bottom of enclosing is provided with condensate drain outlet (2); Described coil pipe (4) bottom righthand side is connected with delivery port (6), and coil pipe (4) left upper end is connected with water inlet (11).
2. the heat-exchange integrated condensing gas interchanger of primary and secondary according to claim 1 is characterized in that: described thermal insulation board (9) is the alumina silicate thermal insulation board.
3. the heat-exchange integrated condensing gas interchanger of primary and secondary according to claim 1 is characterized in that: described adjacent coil pipe (4) interbody spacer has at least two convex closures (13).
4. the heat-exchange integrated condensing gas interchanger of primary and secondary according to claim 1 is characterized in that: be provided with spacer (14) between described adjacent coil pipe (4).
5. according to claim 1,3, the heat-exchange integrated condensing gas interchanger of 4 any described primary and secondarys, it is characterized in that: described coil pipe (4) cross section is ellipse, semicircle, circle or square.
6. the heat-exchange integrated condensing gas interchanger of primary and secondary according to claim 1 is characterized in that: described fore shell (5), back cover (1), enclose frame (3), coil pipe (4) material is the 316L super-low carbon stainless steel.
7. the heat-exchange integrated condensing gas interchanger of primary and secondary according to claim 5 is characterized in that: described coil pipe (4) material is the 316L super-low carbon stainless steel.
CN2010202926952U 2010-08-16 2010-08-16 Primary and secondary heat exchange integrated fuel gas condensation heat exchanger Expired - Fee Related CN201779855U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010202926952U CN201779855U (en) 2010-08-16 2010-08-16 Primary and secondary heat exchange integrated fuel gas condensation heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010202926952U CN201779855U (en) 2010-08-16 2010-08-16 Primary and secondary heat exchange integrated fuel gas condensation heat exchanger

Publications (1)

Publication Number Publication Date
CN201779855U true CN201779855U (en) 2011-03-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010202926952U Expired - Fee Related CN201779855U (en) 2010-08-16 2010-08-16 Primary and secondary heat exchange integrated fuel gas condensation heat exchanger

Country Status (1)

Country Link
CN (1) CN201779855U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102788426A (en) * 2012-08-01 2012-11-21 艾欧史密斯(中国)热水器有限公司 Condensing gas water-heating and/or heating device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102788426A (en) * 2012-08-01 2012-11-21 艾欧史密斯(中国)热水器有限公司 Condensing gas water-heating and/or heating device

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: SICHUAN HAODE TECHNOLOGY CO., LTD.

Free format text: FORMER OWNER: CHENGDU FEIYUE MACHINERY MANUFACTURING CO., LTD.

Effective date: 20120428

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 610061 CHENGDU, SICHUAN PROVINCE TO: 610061 NANCHONG, SICHUAN PROVINCE

TR01 Transfer of patent right

Effective date of registration: 20120428

Address after: 610061 Hedong Industrial Zone, South County, Sichuan

Patentee after: Sichuan Haode Technology Co. Ltd.

Address before: 610061 Sichuan Province, Chengdu District of Qingyang City Industrial Development Zone West block No. second building C 7 (1F).

Patentee before: Chengdu City Feiyue Machinery Manufacture Co., Ltd.

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110330

Termination date: 20130816