CN104406304A - Heat exchange pipe and condensation heat exchanger comprising same - Google Patents

Heat exchange pipe and condensation heat exchanger comprising same Download PDF

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Publication number
CN104406304A
CN104406304A CN201410565402.6A CN201410565402A CN104406304A CN 104406304 A CN104406304 A CN 104406304A CN 201410565402 A CN201410565402 A CN 201410565402A CN 104406304 A CN104406304 A CN 104406304A
Authority
CN
China
Prior art keywords
heat
heat exchanger
heat exchange
exchange
shell
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.)
Pending
Application number
CN201410565402.6A
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Chinese (zh)
Inventor
王勇
郭建恒
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.)
GTC GAS TECHONOLOGY COMPONENTS Co Ltd
Original Assignee
GTC GAS TECHONOLOGY COMPONENTS 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 GTC GAS TECHONOLOGY COMPONENTS Co Ltd filed Critical GTC GAS TECHONOLOGY COMPONENTS Co Ltd
Priority to CN201410565402.6A priority Critical patent/CN104406304A/en
Publication of CN104406304A publication Critical patent/CN104406304A/en
Pending legal-status Critical Current

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Abstract

The invention discloses and provides a heat exchange pipe and a condensation heat exchanger comprising the same, wherein the heat exchange pipe has a large effective heat exchange area and a low thermal resistance, adopts a simple process and has high durability. The heat exchange pipe comprises a conveying pipe and a plurality of fins arranged outside the conveying pipe; the fins are formed in a manner of extruding or cutting the outer wall of the conveying pipe; the condensation heat exchanger comprises a housing, a heat exchange region formed in the housing, a flue gas heat recovery region, a water inlet formed on the front end face of the housing and a water outlet; the heat exchange pipes are arranged in both the heat exchange region and the flue gas heat recovery region. The heat exchange pipe and the condensation heat exchanger are suitable for the field of boiler equipment.

Description

Heat-exchange tube and comprise the condensing heat exchanger of this heat-exchange tube
Technical field
The present invention relates to a kind of condensing heat exchanger, particularly relate to a kind of heat-exchange tube and comprise the condensing heat exchanger of this heat-exchange tube.
Background technology
Condensed type combustion gas water heater absorbs fume afterheat by condensing heat exchanger, and its thermal efficiency comparatively general gas water heater improves more than 8%, belongs to energy saving environmental protection product, has been subject to the favor of more and more consumer.For absorbing fume afterheat, condensing heat exchanger is mostly arranged on high-temperature flue gas outlet side by industry, and high-temperature flue gas flows into from the smoke inlet below condenser, flows to condensing heat exchanger from bottom to top and realizes the transfer of heat, finally discharging from exhanst gas outlet.Heat exchanger for absorbing fume afterheat on market is mainly: around tubular type, fin-tube type or board-like.But adopt the heat exchanger manufacturability around tubular structure poor, overall appearance is bad, and effective heat exchange area is few, and heat transfer effect is poor; Adopt heat exchanger that is board-like or the additional fin structure of copper pipe, relate to number of parts tired many, corrosion resistance and compressive resistance poor, have impact on the thermal efficiency and the service life of existing condensed type combustion gas water heater.
Summary of the invention
Technical problem to be solved by this invention overcomes the deficiencies in the prior art, provides that a kind of effective heat exchange area is large, thermal resistance is little, the simple and heat-exchange tube that durability is high of technique, and a kind of a kind of condensing heat exchanger comprising this heat-exchange tube.
The technical solution adopted in the present invention is: the heat-exchange tube mentioned in the present invention comprises carrier pipe and some fins being arranged on described carrier pipe outside, and described fin is formed by the mode extruding or cut described carrier pipe outer wall.
A kind of condensing heat exchanger comprising this heat-exchange tube mentioned in the present invention comprises shell, is arranged on the heat exchange zone of described shell inner top and is arranged on the flue gas heat recovery district of middle and lower part in described shell, described enclosure is hollow state, its front end face and rear end face are also respectively arranged with delivery port and water inlet, and described heat exchange zone and described flue gas heat recovery district are interconnected.
Described heat exchange zone comprises the fire grate and some heat-exchange tubes be arranged on below described fire grate that are arranged on described enclosure the top, and described heat-exchange tube is connected with described delivery port.
The exhaust outlet that described flue gas heat recovery district about being included in described shell, any end face is offered and some heat-exchange tubes being arranged on lower end in described shell, described heat-exchange tube is connected with described water inlet.
Face is also provided with some tube connectors in described shell rear and front end, and some described heat-exchange tubes connect by some described tube connectors between two, are also provided with condensate drain outlet at described outer casing bottom.
The invention has the beneficial effects as follows: because the heat-exchange tube mentioned in the present invention comprises carrier pipe and some fins being arranged on described carrier pipe outside, described fin is formed by the mode extruding or cut described carrier pipe outer wall.Described fin can expand the contact area of described carrier pipe and high-temperature flue gas further, and there is no other connectors between described fin and described carrier pipe, thermal conductivity is strong and do not worry the problem that connector is corroded, so described heat-exchange tube effective heat exchange area is large, thermal resistance is little, technique is simple and durability is good.
Due to face, described shell rear and front end being also provided with some tube connectors, some described heat-exchange tubes connect by some described tube connectors between two, are also provided with condensate drain outlet at described outer casing bottom.Heat-exchange tube in described shell is connected by described tube connector between two, and make it form loop structure, water inside constantly flows, and takes away the heat of high-temperature flue gas; Described condensate drain outlet then effectively solves instrument internal and amasss water problem, further increases the durability of the condensing heat exchanger mentioned in the present invention.
Accompanying drawing explanation
Fig. 1 is the schematic cross-section of heat-exchange tube in the present invention;
Fig. 2 is the structural representation of condensing heat exchanger in the present invention;
Fig. 3 is the schematic cross-section of condensing heat exchanger in the present invention.
Detailed description of the invention
As shown in Figure 1, the heat-exchange tube mentioned in the present invention comprises carrier pipe 1 and fin 2, and described fin 2 is a part for described carrier pipe 1, is formed by the mode of the outer wall extruding or cut described carrier pipe 1.On described carrier pipe 1 outer wall, form some described fins 2 like this, effectively can improve the contact area of flue gas and described carrier pipe 1, improve heat exchange efficiency.
As shown in Figures 2 and 3, a kind of condensing heat exchanger comprising this heat-exchange tube mentioned in the present invention comprises shell 3, is arranged on heat exchange zone 4 and the flue gas heat recovery district 5 of described shell 3 inside.Described heat exchange zone 4 is arranged on the first half in described shell 3, and described flue gas heat recovery district 5 is arranged on the latter half in described shell 3.Described heat exchange zone 4 comprises the fire grate 41 being arranged on the described inner the top of shell 3 and the some heat-exchange tubes be arranged on below described fire grate 41; Described flue gas heat recovery district 5 comprises the exhaust outlet 51 be arranged on any end face of described shell about 3 and the heat-exchange tube being arranged on the inner the latter half of described shell 3.
Described shell 3 is also arranged to be had water inlet 6 and the delivery port 7 be positioned on described shell 3 front end face and rear end face respectively, is positioned at the condensate drain outlet 9 bottom described shell 3 and is positioned at the some pipes in succession 8 on face, described shell rear and front end.Described water inlet 7 is connected with described flue gas heat recovery district 5, described delivery port 6 is connected with described heat exchange zone 4, such connected mode can make the cold water just entered first be taken away by the heat in described flue gas heat recovery district 5, thus improves the effect of flue gas heat utilization efficiency; Heat in described heat exchange zone 4 again, discharge after meeting the temperature of follow-up instructions for use.Some described tube connectors 8, for being communicated with the heat-exchange tube being positioned at described shell 3, make it form loop structure.Described condensate drain outlet 9 is for discharging inner ponding.
The present invention is applicable to boiler plant field.

Claims (5)

1. a heat-exchange tube, it comprises carrier pipe (1) and some fins (2) being arranged on described carrier pipe (1) outside, it is characterized in that: described fin (2) is formed by the mode extruding or cut described carrier pipe (1) outer wall.
2. one kind comprises a kind of condensing heat exchanger of heat-exchange tube according to claim 1, it is characterized in that: described condensing heat exchanger comprises shell (3), is arranged on the heat exchange zone (4) of described shell (3) inner top and is arranged on the flue gas heat recovery district (5) of described shell (3) interior middle and lower part, described shell (3) inside is in hollow state, its front end face and rear end face are also respectively arranged with delivery port (6) and water inlet (7), and described heat exchange zone (4) and described flue gas heat recovery district (5) are interconnected.
3. condensing heat exchanger according to claim 2, it is characterized in that: described heat exchange zone (4) comprises the fire grate (41) and some heat-exchange tubes being arranged on described fire grate (41) below that are arranged on the inner the top of described shell (3), and described heat-exchange tube is connected with described delivery port (6).
4. condensing heat exchanger according to claim 2, it is characterized in that: described flue gas heat recovery district (5) is included in exhaust outlet (51) and some heat-exchange tubes being arranged on lower end in described shell (3) that any end face in described shell (3) left and right is offered, and described heat-exchange tube is connected with described water inlet (7).
5. the condensing heat exchanger according to claim 3 or 4, it is characterized in that: described shell (3) face, rear and front end is also provided with some tube connectors (8), some described heat-exchange tubes connect by some described tube connectors (8) between two, are also provided with condensate drain outlet (9) in described shell (3) bottom.
CN201410565402.6A 2014-10-22 2014-10-22 Heat exchange pipe and condensation heat exchanger comprising same Pending CN104406304A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410565402.6A CN104406304A (en) 2014-10-22 2014-10-22 Heat exchange pipe and condensation heat exchanger comprising same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410565402.6A CN104406304A (en) 2014-10-22 2014-10-22 Heat exchange pipe and condensation heat exchanger comprising same

Publications (1)

Publication Number Publication Date
CN104406304A true CN104406304A (en) 2015-03-11

Family

ID=52643952

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410565402.6A Pending CN104406304A (en) 2014-10-22 2014-10-22 Heat exchange pipe and condensation heat exchanger comprising same

Country Status (1)

Country Link
CN (1) CN104406304A (en)

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Application publication date: 20150311