CN101903711A - Heat exchanger of upward combustion type condensing boiler - Google Patents
Heat exchanger of upward combustion type condensing boiler Download PDFInfo
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- CN101903711A CN101903711A CN2008801218957A CN200880121895A CN101903711A CN 101903711 A CN101903711 A CN 101903711A CN 2008801218957 A CN2008801218957 A CN 2008801218957A CN 200880121895 A CN200880121895 A CN 200880121895A CN 101903711 A CN101903711 A CN 101903711A
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 74
- 238000007599 discharging Methods 0.000 claims description 12
- 238000011084 recovery Methods 0.000 abstract description 7
- 238000009833 condensation Methods 0.000 description 12
- 230000005494 condensation Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000001704 evaporation Methods 0.000 description 5
- 230000008020 evaporation Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000009785 tube rolling Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/44—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with combinations of two or more of the types covered by groups F24H1/24 - F24H1/40 , e.g. boilers having a combination of features covered by F24H1/24 - F24H1/40
- F24H1/445—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with combinations of two or more of the types covered by groups F24H1/24 - F24H1/40 , e.g. boilers having a combination of features covered by F24H1/24 - F24H1/40 with integrated flue gas condenser
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H8/00—Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H8/00—Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
- F24H8/006—Means for removing condensate from the heater
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
- F24H9/001—Guiding means
- F24H9/0026—Guiding means in combustion gas channels
- F24H9/0031—Guiding means in combustion gas channels with means for changing or adapting the path of the flue gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/12—Arrangements for connecting heaters to circulation pipes
- F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
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- 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]
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
- Details Of Fluid Heaters (AREA)
Abstract
Provided is a heat exchanger of an upward combustion type condensing boiler, which can maximize latent-heat recovery efficiency by causing the flow direction of exhaust gas to coincide with the flow direction of condensed water in a latent heat exchange unit. The heat exchanger includes a sensible heat exchange unit that absorbs sensible heat generated from an upward combustion type burner; a latent heat exchange unit that absorbs latent heat of vapor included in exhaust gas which has been heat-exchanged in the sensible heat exchange unit; and a condensed-water tray that discharges condensed water generated from the latent heat exchange unit. An upward flow of exhaust gas passed through the sensible heat exchange unit is converted into a downward flow so as to pass through the latent heat exchange unit, and the latent heat exchange unit is installed in such a manner that the flow direction of the exhaust gas passing through the latent heat exchange unit vertically coincides with the falling direction of condensed water generated from the latent heat exchange unit.
Description
Technical field
The present invention relates to the heat exchanger of a kind of upward combustion type condensing boiler (upward combustion typecondensing boiler), more particularly, relate to a kind of like this upward combustion type condensing boiler, wherein, sensible heat exchanger and latent heat exchanger are set in sequence in upward combustion type burner top.
Background technology
The boiler of current manufacturing is to comprise that heat exchanger is to increase the boiler of the thermal efficiency.Such heat exchanger is made up of sensible heat crosspoint and latent heat crosspoint.The sensible heat crosspoint absorbs the sensible heat of the exhaust (exhaust gas) that produces from the combustion chamber, and the latent heat crosspoint absorbs latent heat and remaining heat (residual heat) from the exhaust of carrying out heat exchange the sensible heat crosspoint.The boiler of type is called as condensing boiler like this.
Such condensing boiler is rendered in the actual application as the gas fired-boiler of the gaseous fuel of the oil burning boiler that uses oil fuel and use such as LNG or LPG, thereby the increase of boiler efficiency and the minimizing of fuel cost are contributed.
Fig. 1 is the schematic diagram of traditional downward combustion type condensing boiler.
With reference to Fig. 1, when by sensible heat exchanger 13, the exhaust that produces from downward burning type burner 12 is cooled to 200 ℃.Then, when by latent heat crosspoint 14, described exhaust further is cooled to about 40-70 ℃.
Be sent to house interior at the hot water through heat exchange unit 13 and heating in 14 o'clock by supply pipe 15, with transferring heat energy, hot water cools off then, to turn back to recovery tube 16.The hot water that turns back to recovery tube 16 must be introduced in latent heat exchanger 14, thereby latent heat exchanger 14 can absorb latent heat effectively.This is because when the exhaust through sensible heat exchanger 13 is configured to be equal to or less than dew-point temperature, be included in the steam (H in the exhaust
2O) can be condensed, so that latent heat is passed to heat recirculated water.
In downward combustion type condensing boiler, the direction that condensed water falls owing to gravity (that is, downward direction) is consistent with the flow direction of the exhaust of passing through sensible heat crosspoint and latent heat crosspoint naturally.This is the important factors that increases condensing boiler efficient.
That is, when exhaust process latent heat crosspoint, the steam in the exhaust is condensed, and so that latent heat is passed to heat recirculated water, exhaust is obviously cooled off.Therefore, because the internal temperature of condensed water pallet 17 obviously reduces, so can minimize the thermal loss that the evaporation again of the steam that is liquefied as condensed water causes.
Combustion type condensing boiler is considered to have the best condensing boiler structure that can reclaim latent heat substantially downwards.Yet combustion type condensing boiler must be equipped with downward burning type burner downwards.
Usually, the burner that is applied to boiler can be divided into bunsen burner (Bunsen burner) and premix burner.In bunsen burner, be used for the minimum primary air of the nozzle unit supply burning needs of gas jet, and with the part of extra SAS Secondary Air Supply to flame formation, thereby carry out desirable burning.Bunsen burner combustion stability height.Yet,,, can not burn downwards so flame is elongated because flame is formed by auxiliary air.That is, because the length of the flame (flame envelope) that reacts with auxiliary air is big and flame density is low, so flame is often towards last.Therefore, bunsen burner only may be used on upward combustion type condensing boiler.
The gas of the premix that premix burner burning obtains by pre-mixing gas combustion in mixing chamber and air.In premix burner, there is not remaining air in the part that flame forms.In addition, the length of flame is very little, and the density height of flame.Therefore, this burner can be installed and no matter the direction of burning how (upwards, downwards and side direction).Yet, because the air of should premixed combustion required scheduled volume, so burning control is very complicated.In addition, because the easy disturbed influence of premix burner, so its combustion stability is low.
As described above, in order to maximize the efficient of condensing boiler, it is important making the flow direction of fall direction and exhaust of condensed water consistent with gravity direction.Therefore, common use can be carried out the premix burner of downward burning.
Yet the combustion stability of premix burner is low, and should use expensive control system to carry out complicated burning control.
In order to solve such problem, proposed to utilize the upward combustion type bunsen burner to construct the several different methods of the heat exchanger of condensing boiler.Figure 2 illustrates the example of such heat exchanger.
Fig. 2 is the schematic diagram of traditional upward combustion type condensing boiler.
With reference to Fig. 2, latent heat crosspoint 24 is arranged on the sensible heat crosspoint 23 obliquely, and the exhaust of process sensible heat exchanger 23 is passed through sensible heat exchanger 24 via the sidepiece of condensed water pallet 27.At latent heat exchanger 24, aluminium tube rolling (aluminum rolled pipe) or stainless flexible pipe have been proposed.
In Fig. 2, owing to latent heat crosspoint 24 is arranged on the sensible heat crosspoint 23, so can relatively easily construct condensing boiler and can reduce size.
Yet, to compare with traditional downward combustion type condensing boiler, the condensation efficiency of upward combustion type condensing boiler has reduced similar 3-5%.Owing to following two reasons, condensation efficiency reduces.
(1) is positioned at just on the sensible heat crosspoint 23 owing to condensed water pallet 27, so condensed water pallet 27 is heated to high temperature.Therefore, though the condensed water that produces is fallen condensed water pallet 27, can evaporate the condensed water of sizable amount when exhaust process latent heat crosspoint 24 by heated condensed water pallet 27.Therefore, owing to emit with the form of heat of evaporation, can not obtain maximum evaporation efficiency by the latent heat of condensation recovery.In order to solve such problem, heat-insulating shield 25 can be used in the condensed water pallet 27.Yet this only has limited effect.
(2) the fundamental cause that reduces of condensation efficiency is high warm and humid exhaust (exhaust comprises steam) the condensation by contact water through sensible heat crosspoint 23.This takes place inevitably, because the direction of falling of condensed water is arranged perpendicular to the flow direction of exhaust.Therefore, condensation occurs in the part that contacts with high warm and humid exhaust hardly.As a result, a big chunk of latent heat crosspoint 24 is carried out the basic function of its condensation recovery unreliablely.Therefore, compare with sensible heat crosspoint 23 when increasing significantly when the size of latent heat crosspoint 24, the business efficiency of condensing boiler reduces.
Fig. 3 is the schematic diagram of common fin tube type heat exchanger.
Usually the fin tube type heat exchanger (with reference to Fig. 3) that is used as the sensible heat crosspoint is applied to traditional upward combustion type condensing boiler to have difficulties.
Fin tube type heat exchanger is made up of heat exchanger tube 31 and thermofin 32.Fin tube type heat exchanger is formed by copper (Cu) or stainless steel usually and comes combination by brazing.Because fin tube type heat exchanger has small size and can guarantee big heat transfer zone, so fin tube type heat exchanger is widely used as the heat exchanger of boiler.When using fin tube type heat exchanger, the paper surface that the flow direction of exhaust is arranged perpendicular to Fig. 3 is natural.
Yet, when fin tube type heat exchanger being applied to the latent heat crosspoint of traditional upward combustion type condensing boiler, the flow direction of exhaust is configured to vertical direction (the direction B of Fig. 3) or the horizontal direction (the direction A of Fig. 3) that exhaust sequentially flows into a plurality of pipes.Then, because the pressure loss of exhaust increases too much, so can not carry out described application in practice.Therefore, should be made independently owing to have the heat exchanger of the structure different, so the business efficiency of condensing boiler reduces with the heat exchanger that uses in the sensible heat crosspoint.
The condensed water of condensing boiler is discharged into the outside by condensate drain outlet 28 and the independent flexible pipe that is connected to condensate drain outlet 28.Yet, crooked or for example in winter when frozen, condensed water can not discharge swimmingly when the condensed water discharging hose.
In this case, as shown in Figure 2, condensed water is filled to the height of the surfaces A that surpasses the condensed water corresponding with the upper end 27a of condensed water pallet 27, thereby overflows from condensed water pallet 27.The condensed water that overflows from condensed water pallet 27 falls to the fuel element of burner 22 by sensible heat crosspoint 23.Because sensible heat crosspoint 23 forms by the material that condensed water is not had corrosion stability usually, thus sensible heat crosspoint 23 can be corroded, thereby its life-span minimizing.
In typical boiler, the safety device such as blast switch or sensor has been installed, be used to detect exhaust uptake 29 and whether close and provide the instruction that stops boiler then.Yet, as shown in Figure 2 because the upper end 27a of condensed water pallet 27 is positioned at the position lower than the intake section 29a of exhaust uptake 29, so the path that communicates with exhaust uptake 29 do not close, even when condensed water is filled into surfaces A.Therefore, blast switch or sensor do not produce the signal that indication exhaust uptake 29 cuts out.
In order to solve such problem, traditional upward combustion type condensing boiler should comprise the independently safety device whether detection condensed water discharge unit closes, for example, horizontal plane sensor detects the horizontal plane of the condensed water in the top that rests on the condensed water pallet and stops the operation of boiler when the horizontal plane of condensed water surpasses predetermined value.Therefore, it is complicated that the structure of condensing boiler becomes, and manufacturing cost increases.
Summary of the invention
Technical problem
The present invention is directed to the heat exchanger of upward combustion type condensing boiler, by making the flow direction of exhaust in the latent heat crosspoint consistent with the flow direction of condensed water, described heat exchanger maximizing latent heat organic efficiency.
Also at the heat exchanger of upward combustion type condensing boiler, wherein, identical fin tube type heat exchanger is applied to sensible heat crosspoint and latent heat crosspoint in the present invention, thereby does not need to make individually the sensible heat crosspoint.
The present invention is also at the heat exchanger of upward combustion type condensing boiler, and described heat exchanger is not having shut-down operation safely under the situation of independent device, even when boiler is condensed water blockage.
Technical scheme
According to an aspect of the present invention, a kind of heat exchanger of upward combustion type condensing boiler comprises: the sensible heat crosspoint absorbs the sensible heat that produces from the upward combustion type burner; The latent heat crosspoint absorbs the latent heat carried out the steam that contains in the exhaust of heat exchange in the sensible heat crosspoint; The condensed water pallet, the condensed water that discharging produces from the latent heat crosspoint.Upwards flowing of exhaust through the sensible heat crosspoint is transformed into downward flowing, with process latent heat crosspoint, the latent heat crosspoint is installed by this way: the flow direction of the exhaust of process latent heat crosspoint is consistent vertically with the direction of falling of the condensed water that produces from the latent heat crosspoint.
The latent heat crosspoint can comprise box shaped main body, the top surface of described box shaped main body and basal surface be open wide and side surface seal; A plurality of heat exchanger tubes are installed in body interior with the predetermined distance that separates each other in the horizontal direction.
Sensible heat crosspoint and latent heat crosspoint have the fin tube type heat exchanger tube that is installed in their inside respectively, and described fin tube type heat exchanger tube is attached on the thermofin.
The height of the upper end of condensed water pallet is configured to be equal to or higher than the height of discharging the flue entrance part, and exhaust is partly discharged by described discharge flue entrance.
Beneficial effect
According to the present invention, owing to make the flow direction of exhaust in the latent heat crosspoint consistent with the direction of falling of condensed water, so maximizing latent heat organic efficiency.Further, because identical fin tube type heat exchanger is applied to sensible heat crosspoint and latent heat crosspoint, so the sensible heat crosspoint does not need to be made individually.Further, owing to can reduce the size of latent heat crosspoint, so can reduce the size of whole boiler.In addition, the water blockage even condensate drain outlet is condensed can prevent that still condensed water from falling on the sensible heat crosspoint, and this makes can shut-down operation safely under the situation that does not have independent device.
Description of drawings
Fig. 1 is the schematic diagram of traditional downward combustion type condensing boiler.
Fig. 2 is the schematic diagram of traditional upward combustion type condensing boiler.
Fig. 3 is the schematic diagram of common fin tube type heat exchanger.
Fig. 4 is the schematic diagram according to the upward combustion type condensing boiler of example embodiment of the present invention.
The specific embodiment
Below, describe example embodiment of the present invention with reference to the accompanying drawings in detail.
Fig. 4 is the schematic diagram according to the upward combustion type condensing boiler of example embodiment of the present invention.
Condensing boiler according to the present invention comprises: upward combustion type burner 120 is installed in directly over the air blast 110 to form flame upwards; Sensible heat crosspoint 130 absorbs the sensible heat that produces from burner 120; Latent heat crosspoint 150 absorbs the latent heat carried out the steam that contains in the exhaust of heat exchange in sensible heat crosspoint 130.
For burner 120, can use in bunsen burner and the premix burner any.The minimum main air that bunsen burner will burn to be needed is fed to nozzle unit, and secondary air is fed to the part that flame forms.Premix burner pre-mixing gas combustion and air be combustion gas and air then.
The sensible heat crosspoint 130 that is installed in directly over the burner 120 has a plurality of heat exchanger tubes 131, and described heat exchanger tube 131 is arranged in parallel and separates each other predetermined distance in the horizontal direction.Fig. 4 shows the state that heat exchanger tube 131 is installed as delegation.Yet heat exchanger tube 131 can be installed to be two row or multirows more.Sensible heat crosspoint 130 is such fin tube type heat exchangers, and wherein, thermofin as shown in Figure 3 is incorporated into the external peripheral surface of heat exchanger tube 131.
The exhaust of process sensible heat crosspoint 130 is introduced in the latent heat crosspoint 150 by the gas channel unit 140 of narrow width.
Form the shape formation that housing 141 is wide with downside and width narrows down towards upside of gas flow channel unit 140.Therefore, the air-flow of exhaust tilts towards the right side of housing 141.
The flow direction of the exhaust of upwards flowing along the inboard of housing 141 is transformed into direction left in the upper part of housing 141, be transformed into vertical direction then, thereby exhaust is introduced in the latent heat crosspoint 150.
Thereby because the heat exchanger tube 141 of sensible heat crosspoint 140 and the heat exchanger tube 151 of latent heat crosspoint 150 are configured to fin-and-tube type, so that latent heat crosspoint 150 does not need is manufactured individually, this makes can reduce inconvenience.Further, owing to can reduce the size of latent heat crosspoint 150, so can reduce the overall size of product.
The top surface and the basal surface of main body 152 open wide, but the side surface of main body 152 seals.Therefore, exhaust be flowing in right and left to not tilting, but be directed to guiding vertically.
Therefore, produce flowing and exhaust mobile consistent from heat exchanger tube 151 with the condensed water that falls at vertical direction.
In order in latent heat crosspoint 150, to obtain maximum condensation efficiency, need make the minimizing possibility of the wet exhaust of condensed water contact, but and only low temperature do exhaust condensation by contact water.That is, when the number of times that contact with the condensed water that produces from the surface of heat exchanger tube 151 when exhaust increased, the amount of the heat transmission between exhaust and heat exchanger tube 151 reduced, and the evaporation again of the condensed water that causes owing to the heat exchange between high-temperature exhaust air and the condensed water.Therefore, condensation takes place unreliablely.
Therefore, show when reducing exhaust, condensation takes place reliably, can maximize the latent heat organic efficiency with possibility that condensed water contacts when the flow direction that makes exhaust and the direction one of falling of condensed water.
Cooled off fully through the exhaust of latent heat crosspoint 150 to downside from the upside of latent heat crosspoint 150, the steam that contains in the exhaust is condensed in the heat exchanger tube 151 of latent heat crosspoint 150, so that latent heat is delivered to heat recirculated water.
The condensed water that produces from latent heat crosspoint 150 falls, and collects with the condensed water pallet 160 that is tilted, and is discharged into the outside then.
The flow direction of the exhaust of process latent heat crosspoint 150 changes direction upwards into, thereby exhaust is discharged into the outside by discharging flue 170.
In order to maximize the recovery of condensation latent heat, the condensed water pallet 160 that forms the border between latent heat crosspoint 150 and the sensible heat crosspoint 130 can be equipped with insulator 180 stainless steels by the inboard and form.Therefore, even border surface can be prevented also that by the high-temperature residual heat heating through sensible heat crosspoint 130 a part of condensed water that drops on the condensed water pallet 160 from evaporating again.
Simultaneously, the height of the upper end 160a of condensed water pallet 160 is configured to be equal to or greater than the height of discharging flue entrance part 171, and exhaust is discharged by described discharge flue entrance part 171.
Therefore, even close when making condensed water be filled into to discharge the height of flue entrance part 171 when the flexible pipe of discharging condensed water, can prevent that also condensed water from falling on the sensible heat crosspoint 130, this makes the durability deterioration that can prevent sensible heat crosspoint 130.
Further, when condensed water is filled into the height of discharging flue entrance part 171, have and effect identical when discharging flue 170 is closed.Whether in this case, can use typical case such as blast switch or sensor to discharge safety device detects the condensed water discharge unit and closes.Therefore, do not need to use independently safety device such as horizontal plane sensor.
In this case, as shown in Figure 4, the main body 152 of latent heat crosspoint 150 can be fixed and be attached to the upper end 160a of discharging flue entrance part 171 and condensed water pallet 160.
Utilizability on the industry
According to the heat exchanger of upward combustion type condensing boiler of the present invention can condensed water falls in the latent heat crosspoint direction is consistent with the flow direction of exhaust to maximize recovery of latent heat efficient by making, thereby has the utilizability on the industry.
Claims (4)
1. the heat exchanger of a upward combustion type condensing boiler comprises:
The sensible heat crosspoint absorbs the sensible heat that produces from the upward combustion type burner;
The latent heat crosspoint absorbs the latent heat carried out the steam that contains in the exhaust of heat exchange in the sensible heat crosspoint;
The condensed water pallet, the condensed water that discharging produces from the latent heat crosspoint,
Wherein, upwards flowing of exhaust through the sensible heat crosspoint is transformed into downward flowing, with through the latent heat crosspoint, it is consistent vertically with the direction of falling of the condensed water that produces from the latent heat crosspoint that the latent heat crosspoint is installed as the flow direction that makes through the exhaust of latent heat crosspoint.
2. heat exchanger according to claim 1, wherein, described latent heat crosspoint comprises:
Box shaped main body, the top surface of described box shaped main body and basal surface be open wide and side surface seal;
A plurality of heat exchanger tubes are installed in body interior and the predetermined distance that separates each other in the horizontal direction.
3. heat exchanger according to claim 1, wherein, sensible heat crosspoint and latent heat crosspoint have the fin tube type heat exchanger tube that is installed in their inside respectively, and described fin tube type heat exchanger tube is attached to thermofin.
4. heat exchanger according to claim 1 and 2, wherein, the height of the upper end of condensed water pallet is configured to be equal to or higher than the height of discharging the flue entrance part, and exhaust is partly discharged by described discharge flue entrance.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2007-0135520 | 2007-12-21 | ||
| KR1020070135520A KR20090067760A (en) | 2007-12-21 | 2007-12-21 | Heat Exchanger in Upward Combustion Condensing Boiler |
| PCT/KR2008/006788 WO2009082090A1 (en) | 2007-12-21 | 2008-11-18 | Heat exchanger of upward combustion type condensing boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101903711A true CN101903711A (en) | 2010-12-01 |
Family
ID=40801356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008801218957A Pending CN101903711A (en) | 2007-12-21 | 2008-11-18 | Heat exchanger of upward combustion type condensing boiler |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20110114300A1 (en) |
| EP (1) | EP2232161A1 (en) |
| JP (1) | JP2011506908A (en) |
| KR (1) | KR20090067760A (en) |
| CN (1) | CN101903711A (en) |
| AU (1) | AU2008341389B2 (en) |
| WO (1) | WO2009082090A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104937341A (en) * | 2013-01-18 | 2015-09-23 | 庆东纳碧安株式会社 | Combustion plant with feed gas preheater |
| CN106225229A (en) * | 2016-07-27 | 2016-12-14 | 芜湖鸣人热能设备有限公司 | Horizontal side heating boiler |
| CN107076460A (en) * | 2014-11-25 | 2017-08-18 | 庆东纳碧安株式会社 | Condenser boiler |
| CN108369029A (en) * | 2015-12-08 | 2018-08-03 | 庆东纳碧安株式会社 | Combustion apparatus based on condensing mode |
| CN109477664A (en) * | 2016-08-17 | 2019-03-15 | 庆东纳碧安株式会社 | Using the condensing boiler of vaporising device |
| CN112236637A (en) * | 2018-06-05 | 2021-01-15 | 庆东纳碧安株式会社 | Heat exchange tube, heat exchanger unit using the same, and condensing boiler using the same |
| CN112424540A (en) * | 2018-06-05 | 2021-02-26 | 庆东纳碧安株式会社 | Heat exchanger unit and condensing boiler using the same |
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- 2008-11-18 JP JP2010539283A patent/JP2011506908A/en active Pending
- 2008-11-18 AU AU2008341389A patent/AU2008341389B2/en not_active Ceased
- 2008-11-18 WO PCT/KR2008/006788 patent/WO2009082090A1/en active Application Filing
- 2008-11-18 EP EP08864129A patent/EP2232161A1/en not_active Withdrawn
- 2008-11-18 CN CN2008801218957A patent/CN101903711A/en active Pending
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2011506908A (en) | 2011-03-03 |
| AU2008341389A1 (en) | 2009-07-02 |
| US20110114300A1 (en) | 2011-05-19 |
| AU2008341389B2 (en) | 2012-04-12 |
| KR20090067760A (en) | 2009-06-25 |
| WO2009082090A1 (en) | 2009-07-02 |
| EP2232161A1 (en) | 2010-09-29 |
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Application publication date: 20101201 |