CN201615608U - Condensing gas-fired boiler - Google Patents
Condensing gas-fired boiler Download PDFInfo
- Publication number
- CN201615608U CN201615608U CN2010201192449U CN201020119244U CN201615608U CN 201615608 U CN201615608 U CN 201615608U CN 2010201192449 U CN2010201192449 U CN 2010201192449U CN 201020119244 U CN201020119244 U CN 201020119244U CN 201615608 U CN201615608 U CN 201615608U
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- China
- Prior art keywords
- heat exchanger
- water
- communicated
- flue gas
- pipe
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- Expired - Lifetime
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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]
Abstract
The utility model relates to a condensing gas-fired boiler, which belongs to the technical field of heat exchange facilities and mainly comprises a combustor and a heat exchange device provided with a smoke passage and a water passage. The heat exchange device comprises a horizontal heat exchanger and a V-shaped heat exchanger which are mutually connected in series; a first water pipe set forming a circuitous flow passage is distributed on the circumference of the horizontal heat exchanger, and the middle portion of the horizontal heat exchanger is provided with a tubular combustion chamber; the combustor is mounted at one end of the tubular combustion chamber, and smoke penetrates through the horizontal heat exchanger and enters the V-shaped smoke passage of the V-shaped heat exchanger via a downward through hole; a second water pipe set forming a circuitous flow passage is mounted in the V-shaped smoke passage in alternate distribution; and water flow passes the second water pipe set prior to the first water pipe set, and forms reverse heat exchange with the smoke which is originated from the combustion chamber and passes through the V-shaped smoke passage. The condensing gas fired boiler has the advantages of sufficient heat exchange, capability of guaranteeing heat exchange efficiency by maintaining flow speed of cooled smoke, reasonable structure and small occupied area.
Description
Technical field
The utility model relates to a kind of gas fired-boiler, and especially a kind of condensation gas boiler belongs to technical field of heat exchange facilities.
Background technology
Understand according to the applicant, existing gas heater is 200820052420.4 with the typical structure such as the application number of condensing heat exchanger, the applying date is that the Chinese utility model patent of 2008-03-04 is disclosed, it comprises Heat Room, heat exchanger tube, advance mouth, exhaust opening, cold water inlet, hot water outlet, be located at the condensation-water drain in the Heat Room, described Heat Room is to constitute the passage that a cross section is an annular by outer cover of heat exchanger and heat exchanger inner core, heat exchanger inner core and outer cover of heat exchanger respectively with advance mouth, exhaust opening connects, heat exchanger tube is arranged in the Heat Room with the helix tube form, flue gas moves along the Heat Room axis direction, contacts with heat exchanger tube in the Heat Room.During work, flue gas moves along the circular passage, with the spiral heat exchange tube even contact that is arranged in wherein.The following shortcoming of this series products ubiquity: 1) have only the one-level heat exchange, heat exchange is insufficient; Make that easily burner extinguishes when 2) having condensed water to generate; Condensed water can't be discharged, and forms moisture film in copper pipe surface easily, hinders heat exchange; 3) need a large amount of copper pipes and bigger floor space.
The utility model content
What order of the present utility model was primary is: at the shortcoming that above-mentioned prior art exists, it is abundant to propose a kind of heat exchange, and compact conformation, condensation gas boiler that floor space is little.
The further purpose of the utility model is: propose a kind ofly can in time discharge condensed water, thereby guarantee the condensation gas boiler of high efficient heat exchanging.
In order to reach above primary and foremost purpose, condensation gas boiler of the present utility model mainly is made up of burner and heat-exchanger rig with flue gas, water stream channel, it is characterized in that: described heat-exchanger rig comprise mutual series connection at last annular horizontal heat exchanger and descending the V-type heat exchanger; The circle distribution of described annular horizontal heat exchanger has the first group of water pipe that constitutes circuitous runner, and the middle part is the tubular combustion chamber; One end install combustion device of described tubular combustion chamber, flue gas pass horizontal heat exchanger and pass through the V-arrangement flue gas flow channel of V-type heat exchanger down; Second group of water pipe of the circuitous runner of formation spaced apart is housed in the described V-arrangement flue gas flow channel; Current are earlier through second group of water pipe, again through first group of water pipe, and come from the combustion chamber and form reverse heat-exchange through the flue gas of V-arrangement flue gas flow channel.
Because the utility model is derived from the flue gas of burner and successively passes through the two-stage heat exchange, so heat exchange is more abundant.And, be up big and down small v-shaped structure owing to taked first order heat exchanger for annular, second level heat exchanger, so the heat exchange of the first order and tubular combustion chamber is more abundant, the flow velocity of flue gas was to guarantee heat exchange efficiency after the second level can keep lowering the temperature; The result has further realized abundant heat exchange.In addition, because secondary heat exchanger arranges that up and down therefore rational in infrastructure, floor space is very little.
Experiment shows, most flue gas condensing process is the first half that occurs in second level heat exchanger, especially under the lower situation of long-play and inflow temperature, condensation water quantity is usually a lot, if condensing drip drops on the following water pipe, just can form moisture film, not only seriously hinder the heat exchange effect of cigarette G﹠W, and can quicken the corrosion of water pipe.Therefore, in order to reach further purpose, described V-arrangement flue gas flow channel middle part is provided with the condensation water divided flow plate to the both sides inclination.Like this, the condensed water that flue gas produces can successfully flow to both sides along flow distribution plate, so that discharge, thereby prevented the formation of moisture film on the water pipe, weakening condensed water in the water pipe corrosion, make flue gas fully to contact with water pipe, increased the coefficient of heat transfer of second level heat exchanger, more effectively absorb the heat in the flue gas, further improved heat exchange efficiency.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the structural representation of the utility model embodiment one.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is one of three-dimensional sectional structure schematic diagram of Fig. 1 embodiment.
Fig. 4 be Fig. 1 embodiment three-dimensional sectional structure schematic diagram two.
Fig. 5 is the perspective view of the utility model embodiment two.
Fig. 6 is the two-dimensional structure schematic diagram of Fig. 5 embodiment.
The specific embodiment
Embodiment one
The condensation gas boiler of this preferred embodiment mainly is made up of burner (not shown) and the heat-exchanger rig with flue gas, water stream channel as shown in Figures 1 to 4.Heat-exchanger rig comprise be arranged in housing 3 mutually series connection at last annular horizontal heat exchanger 1 and descending V-type heat exchanger 2.The circle distribution of annular horizontal heat exchanger 1 has the first group of water pipe that constitutes circuitous runner, and the middle part is tubular combustion chamber 1-1.The front end install combustion device of tubular combustion chamber 1-1, and be communicated with the V-arrangement flue gas flow channel 2-1 of V-type heat exchanger 2 by the web plate 4 two ends round 4-1 down that separates two heat exchangers.
Second group of water pipe of the circuitous runner of formation spaced apart is housed among the V-arrangement flue gas flow channel 2-1, and second group of water pipe is divided into equidistantly upper and lower the first, second, third, fourth, the 5th totally five comb P1, P2, P 3, P4, the P5 that arranges and separated by horizontal baffle 2-2.Wherein, the rear end of the 4th, the 5th comb is communicated with water inlet 8 at a back V-arrangement water seal 2-3 place, and its front end is located to be communicated with the front end of the 3rd comb P3 at a preceding V-arrangement water seal 2-3 '.The rear end of the 3rd comb P3 is communicated with the rear end of the second comb P2 at a back V-arrangement water seal 2-3 place.The front end of the second comb P2 is located to be communicated with the front end of the first comb P1 at a preceding V-arrangement water seal 2-3 '.The rear end of the first comb P1 is communicated with the lower end of C shape communicating pipe 5 at a back V-arrangement water seal 2-3 place.
Three places that first group of water pipe is uniformly distributed along the circumference radially dividing plate 1-2 are divided into first, second, third 3 section pipe PA, PB and PC.The rear end of the first section pipe PA is communicated with the upper end of C shape communicating pipe 5 at an annular water seal 1-3 place, back.The front end of the first section pipe PA and the second section pipe PB is located to be communicated with at a preceding annular water seal 1-3 ', and the rear end of the second section pipe PB and the 3rd section pipe PC is communicated with at the annular water seal in a back 1-3 place.The front end of the 3rd section pipe PC is located to be communicated with delivery port 6 at a preceding annular water seal 1-3 '.
Above second group of water pipe and first group of water pipe all adopt the copper fin pipe.
During work, current are circuitous through second group of water pipe earlier, circuitous through first group of water pipe again by water inlet, finally export by delivery port, and the high-temperature flue gas that burner produces is passed the copper fin of first group of water pipe by the combustion chamber, again by the round on the web plate, pass the copper fin of second group of water pipe through the V-arrangement flue gas flow channel, finally discharge by the exhaust opening 7 of a side.Because therefore the direction contrary of current and flue gas has formed countercurrent flow efficiently.
In other words, in first order heat exchanger, under the effect of plumbers shed M type gas baffle, the flow of flue gas resistance increases, with the copper pipe full contact, the flue gas process that extrude in the slit between fin, have two kinds of heat exchange modes of radiation and convection current simultaneously, heat can fully pass to the water that flows in the copper pipe, flue-gas temperature reduces, after enter in the V-type heat exchanger of the second level by the web plate structure between two heat exchangers again, because it is relatively low to enter the temperature of water in the secondary heat exchanger copper pipe, remaining most of heat is also fully absorbed by water in the flue gas, last hot water flows out from the top of top first-class heat exchanger, and the flue gas of low temperature low emission is discharged from following first-class heat exchanger, and whole process is a countercurrent flow process, and it is few that the present embodiment that the heat exchange mode of this kind reversed flow condensation makes has under high-load condition a material of use, take up room little and thermal efficiency advantages of higher.
In addition, the secondary heat exchanger design of present embodiment V-type tapered configuration design is considered under the influence of gas baffle between first order heat exchanger copper pipe, the flue gas flow rate that enters secondary heat exchanger is slack-off, heat exchange efficiency descends, the flow velocity that reduces because of circulation area when the V-type tapered configuration can make flue gas flow therein becomes big, thereby strengthened convection transfer rate, made that the heat of flue gas better passes to the water that flows in the copper pipe in the secondary heat exchanger.Simultaneously, the increase of the flue gas flow rate condensed water that gathers on the copper tube and fin that is more prone to blow off prevents that condensed water from forming moisture film and weakening the smoke convection heat-transfer effect on copper pipe, has improved heat exchange efficiency, has protected copper pipe not to be corroded.This structure is significant for the lifting of heat exchange efficiency.
In order in time to discharge condensed water, present embodiment in the V-arrangement flue gas flow channel the 3rd comb P3 and the 4th comb P4 between the condensation water divided flow plate 9 (Fig. 1) that tilts to both sides is set.This condensation water divided flow plate is made by steel plate, is welded between two row's copper pipes, becomes as a whole with heat exchanger.Simulation confirms with CFD by experiment, most flue gas condensing process is the first half that occurs in second level heat exchanger, especially under the lower situation of machine long-play and inflow temperature, the amount of condensed water is very many, if these condensing drips drop on the following copper pipe, just can form moisture film, not only seriously hinder the heat exchange effect of cigarette G﹠W, and can quicken the corrosion of final stage copper pipe.After having increased this condensation water divided flow plate, the condensed water that produces in the flue gas can successfully flow to both sides along flow distribution plate and also discharge by the perforate of both sides, prevented the formation of moisture film on the copper pipe, weaken condensed water to Copper Tube Corrosion in, make flue gas fully to contact with copper pipe, increased the coefficient of heat transfer of a few row's copper pipes behind the heat exchanger of the second level, the heat in the more effective absorption flue gas has further improved heat exchange efficiency.Under the effect of this special construction, present embodiment not only guaranteed machine can be under big discharge operate as normal, and guarantee that the heat exchange efficiency of complete machine remains on level of condensation.
In a word, after present embodiment had two-stage copper fin heat exchanger and premix combustion systems and is applied to water heater, the heat exchanger first order of two-stage horizontal positioned adopted loop configuration, and the V-type tapered configuration is adopted in the second level.The main feature of contrast conventional water heaters is: 1) condensing heat exchange, 2) be provided with the V-type heat exchanger, 3 that strengthens heat exchange) have and can effectively get rid of condensed water and the condensation water divided flow plate, 4 that prevents to corrode) formation secondary countercurrent flow; Or the like, therefore not only can be issued to identical load at material still less, save a large amount of spaces, and had the higher thermal efficiency and the lower oxycarbide and the discharging of nitrogen oxide.
Embodiment two
The condensation gas boiler of present embodiment such as Fig. 5, shown in Figure 6, be with the difference of embodiment one: horizontal heat exchanger is positioned at V-type heat exchanger one side, each other between flue by series connection be communicated with; Its operation principle is identical with embodiment one with major advantage, does not give unnecessary details in addition.
In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (8)
1. a condensation gas boiler mainly is made up of burner and the heat-exchanger rig with flue gas, water stream channel, and it is characterized in that: described heat-exchanger rig comprises the horizontal heat exchanger and the V-type heat exchanger of mutual series connection; The circle distribution of described horizontal heat exchanger has the first group of water pipe that constitutes circuitous runner, and the middle part is the tubular combustion chamber; One end install combustion device of described tubular combustion chamber, flue gas pass horizontal heat exchanger and enter the V-arrangement flue gas flow channel of V-type heat exchanger by through hole down; Second group of water pipe of the circuitous runner of formation spaced apart is housed in the described V-arrangement flue gas flow channel; Current are earlier through second group of water pipe, again through first group of water pipe, and come from the combustion chamber and form reverse heat-exchange through the flue gas of V-arrangement flue gas flow channel.
2. condensation gas boiler according to claim 1 is characterized in that: described V-arrangement flue gas flow channel middle part is provided with the condensation water divided flow plate to the both sides inclination.
3. condensation gas boiler according to claim 1 and 2 is characterized in that: three places that described first group of water pipe is uniformly distributed along the circumference radially dividing plate are divided into first, second, third 3 section pipes; The rear end of the described first section pipe is communicated with the upper end of C shape communicating pipe at annular water seal head place, back, the front end of the described first section pipe and the second section pipe is communicated with at preceding annular water seal head place, the rear end of described second section pipe and the 3rd section pipe is communicated with at annular water seal head place, back, and the front end of described the 3rd section pipe is communicated with delivery port at preceding annular water seal head place.
4. condensation gas boiler according to claim 3 is characterized in that: described second group of water pipe is divided into the first, second, third, fourth, the 5th totally five combs of equidistantly arranging up and down and being separated by horizontal baffle; The rear end of described the 4th, the 5th comb is communicated with water inlet at V-arrangement water seal head place, back, and front end is communicated with the front end of the 3rd comb at preceding V-arrangement water seal head place; The rear end of described the 3rd comb is communicated with the rear end of second comb at V-arrangement water seal head place, back, the front end of described second comb is communicated with the front end of first comb at preceding V-arrangement water seal head place, and the rear end of described first comb is communicated with the lower end of described C shape communicating pipe at V-arrangement water seal head place, back.
5. condensation gas boiler according to claim 4 is characterized in that: described horizontal heat exchanger is the annular horizontal heat exchanger that is positioned on the described V-type heat exchanger.
6. condensation gas boiler according to claim 5 is characterized in that: described horizontal heat exchanger is positioned at V-type heat exchanger one side, each other between flue by series connection be communicated with.
7. condensation gas boiler according to claim 6 is characterized in that: the condensation water divided flow plate that tilts to both sides is set between described the 3rd comb and the 4th comb.
8. condensation gas boiler according to claim 7 is characterized in that: described tubular combustion chamber is communicated with the V-arrangement flue gas flow channel of described V-type heat exchanger by the web plate two ends round down that separates two heat exchangers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201192449U CN201615608U (en) | 2010-02-26 | 2010-02-26 | Condensing gas-fired boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201192449U CN201615608U (en) | 2010-02-26 | 2010-02-26 | Condensing gas-fired boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201615608U true CN201615608U (en) | 2010-10-27 |
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ID=43001976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201192449U Expired - Lifetime CN201615608U (en) | 2010-02-26 | 2010-02-26 | Condensing gas-fired boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201615608U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782270A (en) * | 2010-02-26 | 2010-07-21 | 艾欧史密斯(中国)热水器有限公司 | Condensing gas boiler |
| CN110631261A (en) * | 2019-10-14 | 2019-12-31 | 西安交通大学 | Tubular gas condensing boiler and system |
-
2010
- 2010-02-26 CN CN2010201192449U patent/CN201615608U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782270A (en) * | 2010-02-26 | 2010-07-21 | 艾欧史密斯(中国)热水器有限公司 | Condensing gas boiler |
| CN110631261A (en) * | 2019-10-14 | 2019-12-31 | 西安交通大学 | Tubular gas condensing boiler and system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101027 |
|
| CX01 | Expiry of patent term |