CN101126565A - Condensed type combustion gas water heater condensator - Google Patents
Condensed type combustion gas water heater condensator Download PDFInfo
- Publication number
- CN101126565A CN101126565A CNA200710030652XA CN200710030652A CN101126565A CN 101126565 A CN101126565 A CN 101126565A CN A200710030652X A CNA200710030652X A CN A200710030652XA CN 200710030652 A CN200710030652 A CN 200710030652A CN 101126565 A CN101126565 A CN 101126565A
- Authority
- CN
- China
- Prior art keywords
- heat
- tube
- transfer pipe
- heat transfer
- transfer
- 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
Links
Images
Classifications
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to a condenser of condensing gas water heater. The utility model mainly comprises a plurality of heat transfer tube, a tube plate and two pieces of box bodies; wherein, two box bodies are separately welded on two tube plates; a tube bundle with a plurality of heat transfer tubes is arranged in an empty cavity , which comprises the box bodies and the tube plates; the heat transfer tube is a universal stainless steel tube of industrial heat exchanger and is an integral fin structure, which is two-dimensional or three-dimensional; a plurality of heat transfer tubes are arranged according to triangle or square mode; the heat transfer tubes penetrate through the tube plate; expansion or welding mode sealing is adopted between the heat transfer tubes and the tube plates. The utility model has the advantages of no blocking problem for flow passage caused by rust difficult to form on the stainless steel surface for water steam condensing liquid, no problem that heat stress effects heat transfer efficiency of heat transfer tubes and needing no expansion or welding fin outside the tubes because stainless steel tube is processed into enhanced tube of the integral fin structure and lowering costs for the stainless steel material than copper.
Description
Technical field
The present invention relates to the employed condenser of a kind of condensed type combustion gas water heater, belong to condenser augmentation of heat transfer technical field.
Background technology
Along with improving constantly of people's living standard, the application of gas heater is more and more universal.Common gas heater has only utilized the sensible heat of flue gas, and the latent heat of water vapour fails to utilize in the flue gas, with fume emission in atmosphere, so its thermal efficiency between 80-85%, and pernicious gas such as CO in the flue gas
X, NO
x, SO
XDeng environment there being certain pollution.Be the further thermal efficiency that improves gas heater, energy savings and protection environment, a kind of gas heater of condensing is rapidly developed in recent years, and becomes the developing direction of following gas heater.
Condensed type combustion gas water heater and common gas heater structurally have very big change, mainly are the structure difference of heat-exchange system.In order fully to reclaim sensible heat and the steam latent heat in the flue gas, condensed type combustion gas water heater adopts heat exchange mode twice, i.e. two heat exchangers.Except that the sensible heat exchanger that occupy the general gas water heater, also has a condenser.According to the design feature of complete machine, generally be above general gas water heater sensible heat exchanger, condenser to be set, also be provided with condensate collector between the two.High temperature cigarette device enters sensible heat exchanger and condenser successively from bottom to top during work.And water (flow) direction is just in time opposite, earlier through condenser, cold water absorbs high temperature cigarette device waste heat in condenser after, enters main heat exchanger again and absorbs obvious heat of smoke.Because sensible heat and steam latent heat in the condensed type combustion gas water heater flue gas obtain effective recycling, so the exhaust gas temperature of flue gas is more much lower than general gas water heater, the thermal efficiency can improve more than 15%.In addition, water vapor condensation liquid also can dissolve and absorb part CO in the smoke evacuation
X, NO
x, SO
XPernicious gas has certain catharsis to flue gas.
Because copper material has good thermal conductivity and ductility, therefore, the condenser of condensed type combustion gas water heater extensively adopts the metal copper pipe as heat-transfer pipe at present, and the copper fin of suit slab construction increases the condensation heat transfer area outside copper pipe, adopt the expanded joint mode that fin is combined with copper pipe closely, form the condenser structure of pipe box fin.In addition, for preventing the corrosion influence of acid condensate liquid, corrosion-inhibiting coating all need be added in copper pipe in the condenser and copper fin surface.
There is following shortcoming in the condenser of this copper pipe cover copper fin structure: the higher and continuous rising of (1) copper material price, the cost of condenser also constantly increase; (2) when copper pipe and the disengaging of fin surface corrosion-inhibiting coating, water vapor condensation liquid causes the generation of patina between copper pipe surface and fin, thereby stops up flue gas flow channel, causes the flow of flue gas pressure drop to raise, and burning becomes insufficient, and the concentration of pernicious gas increases; (3) copper pipe adopts the expanded joint mode to be connected with copper fin, recycles more than 200 ℃ and between the normal temperature at high temperature for a long time, and copper pipe and copper fin cause the generation of expanded joint place loosening because of the effect of thermal stress, thereby have increased contact heat group, have reduced the heat transfer efficiency of condenser.
Summary of the invention
The condenser that the purpose of this invention is to provide a kind of condensed type combustion gas water heater easily generates patina because of the effect of thermal stress causes the expanded joint place to produce between loosening, copper pipe surface and fin and stops up flue gas flow channel and the higher deficiency of cost to overcome copper pipe that prior art exists and copper fin.
Condenser of the present invention structurally mainly is made up of heat-transfer pipe, tube sheet and casing, and two casings are welded on respectively on two tube sheets, and many heat-transfer pipes are positioned at casing and tube sheet composition cavity (Fig. 1).
Described heat-transfer pipe is a stainless steel tube general on the industrial heat exchange device, and heat-transfer pipe is the integral fins structure, and described fin structure is two dimension or three-dimension fin structure; Many heat-transfer pipes are pressed triangle or the arrangement of square mode stringing; Heat-transfer pipe runs through tube sheet, adopts expanded joint or welding manner sealing between heat-transfer pipe and the tube sheet.
The single series connection of described many heat-transfer pipes, the part that is in the two tube sheets outside adopts elbow to connect, and a water inlet and a delivery port are left in the outside of a tube sheet therein.
Described many heat-transfer pipes are divided into some groups, every group of heat-transfer pipe series connection, the part that is in the two tube sheets outside adopts end enclosure structure, in end socket, be provided with demarcation strip, demarcation strip is divided into some groups with many heat-transfer pipes, end enclosure structure adopts capping to seal, and leaves a water inlet and a delivery port.
Described heat-transfer pipe is a stainless steel tube general on the industrial heat exchange device, its surface is non-shiny surface, it is to process the integral fins structure by mechanical means at the plain tube outer surface, promptly adopts the method for extrusion modling that above-mentioned stainless steel plain tube outer surface is processed into two-dimentional fin structure or adopts the method that plough is cut into type that stainless steel plain tube outer surface is processed into the three-dimension fin structure.
Advantage applies of the present invention exists: (1) utilizes common stainless steel advantage more much lower than copper on price, reduces the condenser cost; (2) water vapor condensation liquid is difficult in stainless steel surfaces and generates scale, does not have the blockage problem that causes runner because of getting rusty; (3) stainless steel tube is processed into the enhanced tube of integral fins structure, need not at the outer expanded joint of pipe or weld fin, do not exist thermal stress to influence the heat transfer efficiency problem of heat-transfer pipe.
Description of drawings
Fig. 1 is a condenser structure schematic diagram of the present invention.
Fig. 2 is the axial section of the two-dimentional fin heat transfer pipe in the condenser of the present invention.
Fig. 3 a is the structural representation of the three-dimension fin heat-transfer pipe in the condenser of the present invention.
Fig. 3 b is the axial section of the three-dimension fin heat-transfer pipe in the condenser of the present invention.
Fig. 4 a is the elbow connected mode schematic diagram between the heat-transfer pipe of left side tube sheet in the condenser of the present invention.
Fig. 4 b is for being 1 elbow connected mode schematic diagram between the heat-transfer pipe of right side tube sheet in the condenser of the present invention.
The end enclosure structure connected mode schematic diagram of Fig. 5 for separating with dividing plate between heat-transfer pipe in the condenser of the present invention.
Fig. 6 arranges by triangle for the cross section of many row's heat-transfer pipes and forms the Pipe bundle structure schematic diagram.
The specific embodiment
The present invention is described in further detail below in conjunction with drawings and Examples, but embodiments of the present invention are not limit so.
This condenser is structurally mainly formed (Fig. 1) by heat-transfer pipe, tube sheet and casing.Cooling water flows in pipe, and flue gas flows outside pipe.Used heat-transfer pipe is a stainless steel tube general on the industrial heat exchange device, and be processed into the two dimension or the three-dimension fin structure of monolithic devices at the heat-transfer pipe outer surface through mechanical means, to increase condensation heat transfer area and performance condensate liquid surface tension effects, promote condensate liquid to discharge, thereby improve condensation heat transfer performance from the finned tube surface.On manufacturing process, many heat-transfer pipes are pressed triangle or square mode arrangement, and heat-transfer pipe and tube sheet adopt expanded joint or welding manner sealing, prevent the leakage between heat-transfer pipe and tube sheet of flue gas or cooling water.In the tube sheet outside, can adopt elbow to connect between the heat-transfer pipe, form the current road of every heat-transfer pipe series connection, demarcation strip perhaps is set between heat-transfer pipe, many heat exchanger tubes are separated into some groups, form the current road of every group of heat-transfer pipe series connection, seal with water cover again.There are problems such as patina, thermal stress and cost height in the condenser that this condenser can solve the copper pipe cover copper fin structure that present condensed type combustion gas water heater generally adopts.The thermal efficiency of water heater reaches more than 100%, and exhaust gas temperature is lower than 80 ℃.
Embodiment
Fig. 1 shows concrete structure of the present invention, and by Fig. 1 finding, this condenser mainly is made up of stainless steel heat-transfer pipe 1, casing 2 and tube sheet 3.Wherein, heat-transfer pipe 1 is a multi coil bundle structure, carries out stringing by triangle or square mode and arranges, before and after casing 2 is divided into two, and about tube sheet 3 is divided into two, adopt elbow to connect or end enclosure structure between the heat-transfer pipe in two tube sheet 3 outsides, constitute the in-pipe flow road.Two casings are welded on respectively on two tube sheets, and heating surface bank are constrained in the cuboid or cube structure of casing and tube sheet formation.Cooling water flows in heat-transfer pipe 1, and flue gas is bottom-up flowing outside heat-transfer pipe 1, and the steam in the flue gas is in heat-transfer pipe 1 outer surface condensation, and condensate liquid is discharged from heat-transfer pipe 1 surface.Temperature raises behind the sensible heat in the cooling water absorption flue gas and the latent heat of steam.
The structure of heat-transfer pipe 1 such as Fig. 2 or shown in Figure 3.Wherein, adopt the method for extrusion modling that stainless steel plain tube outer surface is processed into two-dimentional fin structure, Fig. 2 is the axial section of two-dimentional finned tube; Adopt the method that plough is cut into type that stainless steel plain tube outer surface is processed into the three-dimension fin structure, Fig. 3 a is the fin structure schematic diagram of three-dimension fin pipe, and the three-dimension fin parameter is respectively the high h of fin, fin pitch p1 and fin gap P2; Fig. 3 b is the radial cross-section figure of three-dimension fin pipe.Heat-transfer pipe runs through tube sheet, adopts expanded joint or welding manner to seal between heat-transfer pipe 1 and the tube sheet 3.
As Fig. 4, available elbow connects between both sides tube sheet place heat-transfer pipe, forms the current road of every heat-transfer pipe series connection.Fig. 4 a is the elbow connected mode between left side tube sheet 3 heat-transfer pipes, and Fig. 4 b is the elbow connected mode between right side tube sheet 3 (Inlet and outlet water side) heat-transfer pipe.
As Fig. 5, the end enclosure structure of band demarcation strip is set between the heat-transfer pipe in tube sheet 3 outsides, use the capping welded seal again, dividing plate is separated into some groups with many heat exchanger tubes, forms the current road of every group of heat-transfer pipe series connection.Fig. 5 comprises, heat-transfer pipe 1; Casing 2; Tube sheet 3; Right side end socket 4, wherein 4a is dividing plate, the capping of 4b end socket in the end socket; Left side end socket 5, wherein 5a is dividing plate, the capping of 5b end socket in the end socket.
As Fig. 6, arrange heat-transfer pipe more and arrange the formation Pipe bundle structure by triangle.The cross section of many row's heat-transfer pipes also can be by square arrangement (as Fig. 4 a, Fig. 4 b).
Claims (4)
1. the condenser of a condensed type combustion gas water heater, comprise heat-transfer pipe, tube sheet and casing, wherein, two casings are welded on respectively on two tube sheets, the tube bank of many heat-transfer pipe compositions is positioned at the cavity of casing and tube sheet composition, it is characterized in that: heat-transfer pipe is a stainless steel tube general on the industrial heat exchange device, and heat-transfer pipe is the integral fins structure, and described fin structure is two dimension or three-dimension fin structure; Many heat-transfer pipes are pressed triangle or the arrangement of square mode stringing; Heat-transfer pipe runs through tube sheet, adopts expanded joint or welding manner sealing between heat-transfer pipe and the tube sheet.
2. condenser according to claim 1 is characterized in that: the single series connection of described many heat-transfer pipes, the part that is in the two tube sheets outside adopts elbow to connect, and a water inlet and a delivery port are left in the outside of a tube sheet therein.
3. condenser according to claim 1, it is characterized in that: described many heat-transfer pipes are divided into some groups, every group of heat-transfer pipe series connection, the part that is in the two tube sheets outside adopts end enclosure structure, in end socket, be provided with demarcation strip, demarcation strip is divided into some groups with many heat-transfer pipes, and end enclosure structure adopts capping to seal, and leaves a water inlet and a delivery port.
4. condenser according to claim 1 is characterized in that: heat-transfer pipe is two dimension or three-dimension integrally fin structure, and described two-dimentional fin structure adopts the method for extrusion modling to process; Described three-dimension fin structure adopts the method that plough is cut into type to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710030652XA CN101126565A (en) | 2007-09-29 | 2007-09-29 | Condensed type combustion gas water heater condensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710030652XA CN101126565A (en) | 2007-09-29 | 2007-09-29 | Condensed type combustion gas water heater condensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101126565A true CN101126565A (en) | 2008-02-20 |
Family
ID=39094650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200710030652XA Pending CN101126565A (en) | 2007-09-29 | 2007-09-29 | Condensed type combustion gas water heater condensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101126565A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090543A (en) * | 2013-02-01 | 2013-05-08 | 广东万和新电气股份有限公司 | Gas appliance compact type heat exchanger |
| CN103438727A (en) * | 2013-08-22 | 2013-12-11 | 华南理工大学 | Stainless steel bellow condenser of condensation type gas water heater |
| CN107328263A (en) * | 2017-05-25 | 2017-11-07 | 广东顺德巴林电器制造有限公司 | A kind of efficient energy-saving gas thermoconverter |
| CN109269107A (en) * | 2018-11-09 | 2019-01-25 | 崇州杨明电子产品有限公司 | Heat exchanger and its production technology |
-
2007
- 2007-09-29 CN CNA200710030652XA patent/CN101126565A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090543A (en) * | 2013-02-01 | 2013-05-08 | 广东万和新电气股份有限公司 | Gas appliance compact type heat exchanger |
| CN103090543B (en) * | 2013-02-01 | 2015-09-16 | 广东万和新电气股份有限公司 | Gas utensil compact heat exchanger |
| CN103438727A (en) * | 2013-08-22 | 2013-12-11 | 华南理工大学 | Stainless steel bellow condenser of condensation type gas water heater |
| CN107328263A (en) * | 2017-05-25 | 2017-11-07 | 广东顺德巴林电器制造有限公司 | A kind of efficient energy-saving gas thermoconverter |
| CN109269107A (en) * | 2018-11-09 | 2019-01-25 | 崇州杨明电子产品有限公司 | Heat exchanger and its production technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2017162018A1 (en) | Counter-flow fin plate heat exchanger for gas-gas heat exchange | |
| CN102901225B (en) | A kind of pressure helical fin coil condensation Heat supply and heat exchange device | |
| CN101191666B (en) | Gas burner water heater condensing type heat-exchanger rig | |
| CN106705716A (en) | Plate-type gas gas-heat exchanger | |
| CN102901221A (en) | Forced finned straight pipe condensation heat-supply heat exchanger | |
| CN102901222A (en) | Forced finned straight pipe dual-ring-shaped condensation heat-supply heat exchanger | |
| CN102901224A (en) | Forced helical fin coil pipe and fin serpentuator condensation heat supply heat exchanger | |
| CN105042622A (en) | Air preheater based one air-water heat exchange | |
| CN204202456U (en) | Asymmetric phase-change heat-exchanger | |
| CN101126565A (en) | Condensed type combustion gas water heater condensator | |
| CN105605947A (en) | Fluorine plastic tubular heat exchanger capable of being horizontally arranged | |
| CN103759288B (en) | Plate type air preheater | |
| CN200989662Y (en) | Condensation heat exchanger for gas water heater | |
| CN208818047U (en) | A kind of pincushion plate-fin heat exchanger | |
| CN218884740U (en) | Radial tube core heat pipe heat exchanger for flue gas waste heat recovery | |
| CN101726195A (en) | Stainless steel finned tube heat exchanger for residual heat recovery | |
| CN201081587Y (en) | Composite heat pipe heat exchanger | |
| CN206656631U (en) | A kind of board-like gas gas-heat exchanger | |
| CN203454852U (en) | Stainless steel corrugated pipe condenser of condensing type gas water heater | |
| CN203454861U (en) | Spiral fin tube type steam air preheater | |
| CN212339199U (en) | Boiler system for cleaning and efficiently recycling heat energy | |
| CN103438727A (en) | Stainless steel bellow condenser of condensation type gas water heater | |
| CN210473103U (en) | Anti-scaling flue gas condenser for chimney de-whitening | |
| CN104315909B (en) | Asymmetric phase-change heat-exchanger | |
| CN103791741B (en) | A kind of phase transformation plate type heat exchanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |