CN204494805U - Condensing normal-pressure hot-water boiler - Google Patents
Condensing normal-pressure hot-water boiler Download PDFInfo
- Publication number
- CN204494805U CN204494805U CN201520109559.8U CN201520109559U CN204494805U CN 204494805 U CN204494805 U CN 204494805U CN 201520109559 U CN201520109559 U CN 201520109559U CN 204494805 U CN204494805 U CN 204494805U
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- Prior art keywords
- boiler
- saving device
- condensation energy
- mouth
- water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 238000009833 condensation Methods 0.000 claims abstract description 64
- 230000005494 condensation Effects 0.000 claims abstract description 63
- 239000000779 smoke Substances 0.000 claims abstract description 16
- 241000973497 Siphonognathus argyrophanes Species 0.000 claims abstract description 8
- 238000007599 discharging Methods 0.000 claims abstract description 8
- 239000010935 stainless steel Substances 0.000 claims description 11
- 229910001220 stainless steel Inorganic materials 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 12
- 235000019504 cigarettes Nutrition 0.000 abstract description 3
- 238000005728 strengthening Methods 0.000 abstract description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 7
- 239000003546 flue gas Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000007789 gas Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 241001061824 Plagopterus argentissimus Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000003416 augmentation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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 provides a kind of condensing normal-pressure hot-water boiler strengthening heat transfer effect, reduce outlet cigarette temperature, comprises boiler jacket, the rear smoke box being positioned at boiler jacket and the condensation energy-saving device be connected with rear smoke box; Described boiler jacket is respectively equipped with boiler discharging tube mouth and boiler leads to the air mouth of pipe, described condensation energy-saving device and rear smoke box are connected a boiler feed water mouth of pipe jointly, described condensation energy-saving device also connects condensation energy-saving device water inlet pipe mouth by condensation energy-saving device water inlet pipe, and described condensation energy-saving device also connects condensation energy-saving device effluent pipe mouth; Also comprise two pipelines, a pipeline is connected with the boiler feed water mouth of pipe with boiler discharging tube mouth, and another pipeline is connected with heat exchanger, and heat exchanger is connected with condensation energy-saving device water inlet pipe mouth respectively at condensation energy-saving device effluent pipe mouth.
Description
Technical field
The utility model relates to a kind of hot-water boiler, especially a kind of condensing normal-pressure hot-water boiler.
Background technology
Conventional exhaust gas temperature is generally more than 150 DEG C, this temperature is far above flue gas aqueous dew point temperature, and a large amount of obvious heat of smoke is not only taken away in smoke evacuation, the more important thing is that in flue gas, steam latent heat is not fully utilized, the thermal efficiency is lower, does not meet the policy of China's energy-saving and emission-reduction.Condensing boiler adopts efficient burning technology, can effectively reduce burning excess air coefficient, improves combustion of natural gas efficiency, reduces NO
xgenerate and discharge, be conducive to water vapor condensation in flue gas simultaneously; Adopt smoke heat energy degree of depth cooling technology, exhaust gas temperature is dropped to flue gas dew point temperature (or water dew point) below by configuration heat energy utilization equipment, not only can recycle smoke evacuation sensible heat, also can utilize a large amount of latent heats of vaporization of releasing during the steam condensation produced during combustion of natural gas, economize energy, condensation water is to the CO in flue gas simultaneously
2, NO
x, SO
xcertain absorbing and removing effect is also had Deng pernicious gas.
Namely the split type condensing normal pressure hot water boiler occurred on the market is at present install condensation segment heat exchanger additional after conventional atmospheric hot-water boiler.Conventional plate-type condensation energy-saving device heat exchanging part is 316 or 321 stainless steel manufactures, high expensive, and technique relative complex, needs masterplate manufacture, therefore on the high side, be not as large as trumpet cooler potentiality in popularizing; Tubular type condensation energy-saving appliance commercially accounts for main flow low level, and it adopts the extended surface enhanced heat transfer component such as finned tube, by fin reinforcing flow-disturbing, increases convection transfer rate, increases heat exchange area simultaneously thus realizes the object of augmentation of heat transfer.But conventional tubular condensation energy-saving device has following defect: 1. diameter phi 32 base tube that even diameter is larger generally selected by finned tube base tube.The energy-saving appliance of same profile, base tube diameter is larger, although fin external diameter is comparatively large, stringing quantity is few, and cause total heat exchange area little, heat transfer effect is poor; 2. shell generally chooses all steel manufacture (some even finned tube also adopt all steel), greatly increases manufacturing cost; Finned tube is multiplex ratio-frequency welding formula then, high frequency welded fin-tube processed complex, and produce power consumption large, manufacturing cost is also very high; 3. adjacent two rows pipe is dislocated layout, and adopt normal bend to connect adjacent two rows pipe, elbow and horizontal direction angle are generally between 45 ° to 60 °, and therefore adjacent two rows tube pitch is relevant with elbow radius.This kind of arrangement is used by most energy-saving appliance manufacturer, but this connected mode can cause adjacent two rows tube pitch bigger than normal, and energy-saving appliance circulation area is large, and heat exchanging effect creates weakening to a certain extent.And all there is same problem in two kinds of traditional condensation energy-saving appliance application on normal-pressure hot-water boiler, namely compared with vacuum phase changing hot water boiler, normal-pressure hot-water boiler return water temperature (normal-pressure hot-water boiler return water temperature 70 DEG C higher than vacuum phase changing hot water boiler return water temperature, vacuum phase changing hot water boiler return water temperature 50 DEG C), normal-pressure hot-water boiler backwater water temperature (i.e. boiler feed water water temperature) and exhaust gas temperature have a narrow range of temperature, cause the former to can not show a candle to the latter by condensation effect, its competitiveness is reduced widely.
Summary of the invention
The utility model provides a kind of condensing normal-pressure hot-water boiler strengthening heat transfer effect, reduce outlet cigarette temperature.
Realize the condensing normal-pressure hot-water boiler of the utility model object, comprise boiler jacket, the rear smoke box being positioned at boiler jacket and the condensation energy-saving device be connected with rear smoke box; Described boiler jacket is respectively equipped with boiler discharging tube mouth and boiler leads to the air mouth of pipe, described condensation energy-saving device and rear smoke box are connected a boiler feed water mouth of pipe jointly, described condensation energy-saving device also connects condensation energy-saving device water inlet pipe mouth by condensation energy-saving device water inlet pipe, and described condensation energy-saving device also connects condensation energy-saving device effluent pipe mouth;
Also comprise two pipelines, a pipeline is connected with the boiler feed water mouth of pipe with boiler discharging tube mouth, and another pipeline is connected with heat exchanger, and heat exchanger is connected with condensation energy-saving device water inlet pipe mouth respectively at condensation energy-saving device effluent pipe mouth.
The base tube of described condensation energy-saving device is the path finned tube that diameter is less than 32mm.
Described boiler jacket comprises the front shell and back shell of welding and being stitched together, and the material of described front shell is Q235A steel plate, and the material of described back shell is 316L stainless-steel sheet, and the centre of described boiler jacket is provided with a stainless steel breviseptum.
The side of described condensation energy-saving device is provided with left collector, and opposite side is provided with right collector, and described left collector connects upper collecting chamber, and described right collector connects lower header, and described upper collecting chamber connects condensation energy-saving device effluent pipe mouth, and described lower header connects condenser water inlet pipe mouth.
The beneficial effect of condensing normal-pressure hot-water boiler of the present utility model is as follows:
(1) condensing normal-pressure hot-water boiler of the present utility model selects the finned tube of minor diameter base tube, and tube bank can be made to arrange more intensive, tube pitch is less, more, and the heat exchange gross area is larger; The steel-aluminum composite fin tube that first half adopts, the outer aluminium coating of its base tube, fin is also suppressed by aluminium flake, and the thermal conductivity of aluminium is far above iron, and therefore heat-transfer effect is far better than common high frequency welded fin-tube.Therefore heat transfer effect will increase substantially.
(2) before and after shell, material segmentation manufacture replaces overall stainless steel manufacture, and latter half just uses stainless steel pipe with wound fin, has greatly saved manufacturing cost; Respectively there is galvanized pipe drainpipe and a fabricating drainpipe made from stainless steel front and back, sectional draining; Middle increase stainless steel breviseptum, can prevent back segment acid condensate water from flowing into leading portion corrosion front carbon steel base plate.
(3) elbow changes the pipe connecting same row of horizontal into, and this way can eliminate the impact of traditional elbow on adjacent two rows spacing, significantly can shorten adjacent two rows tube pitch, tube bank is arranged more intensive, strengthening forced convective heat transfer of flue effect.Header adopts the two intubate of hoop and homonymy many headers structure, and (visual water velocity increases cloth header separately, two, side not in a drawings attached), greatly can reduce the water flow velocity in minor diameter base tube finned tube, enhanced heat exchange effect, (it is better that this kind of way is used in effect on the pipeline containing water pump to reduce water resistance, can pump energy consumption be reduced, save user power utilization expenditure).
(4) two kinds of pipeline connecting modes are provided to select for user: when condensation energy-saving device combines heat exchange, another pipeline periodical feeding of boiler with an external heat exchanger (boiler go out/backwater water temperature is still 95 DEG C/70 DEG C), external heat exchanger backwater water temperature (i.e. condensation energy-saving device water inlet water temperature) more original boiler blow-down water water temperature (70 DEG C) is low, and minimumly reaches 40 DEG C.Therefore in condensation energy-saving organ pipe, water temperature and the boiler export flue-gas temperature temperature difference increase, and enhance condensation energy-saving device heat transfer effect, reduce outlet cigarette temperature, have reclaimed the heat of condensed water in flue gas larger; By doing experiment to 900,000 kilocalories/hours condensation normal-pressure hot-water boiler, when condensation energy-saving device connects external heat exchanger, boiler whole efficiency improves 10%; When condensation energy-saving device is directly connected to boiler, boiler whole efficiency improves 7%.
Accompanying drawing explanation
Fig. 1 is the structural representation of condensing normal-pressure hot-water boiler of the present utility model.
Fig. 2 is the piping diagram of condensing normal-pressure hot-water boiler of the present utility model.
Fig. 3 is the structural representation of the condensation energy-saving device of condensing normal-pressure hot-water boiler of the present utility model.
Detailed description of the invention
As shown in Figure 1, 2, condensing normal-pressure hot-water boiler of the present utility model, comprises boiler jacket 2, the rear smoke box 1 being positioned at boiler jacket 2 and the condensation energy-saving device 3 be connected with rear smoke box 1; Described boiler jacket 2 is respectively equipped with boiler discharging tube mouth 5 and boiler leads to the air mouth of pipe 6, described condensation energy-saving device 3 is connected a boiler feed water mouth of pipe 7 jointly with rear smoke box 1, described condensation energy-saving device 3 also connects condensation energy-saving device water inlet pipe mouth 8 by condensation energy-saving device water inlet pipe 4, and described condensation energy-saving device 3 also connects condensation energy-saving device effluent pipe mouth 9;
Also comprise two pipelines, a pipeline is connected with the boiler feed water mouth of pipe 7 with boiler discharging tube mouth 5, and another pipeline is connected with heat exchanger, and heat exchanger is connected with condensation energy-saving device water inlet pipe mouth 8 respectively at condensation energy-saving device effluent pipe mouth 9.
The base tube of described condensation energy-saving device 3 is the path finned tube that diameter is less than 32mm.
Described boiler jacket 2 comprises the front shell and back shell of welding and being stitched together, and the material of described front shell is Q235A steel plate, and the material of described back shell is 316L stainless-steel sheet, and the centre of described boiler jacket is provided with a stainless steel breviseptum.
As shown in Figure 3, the side of described condensation energy-saving device is provided with left collector 31, opposite side is provided with right collector 33, described left collector 31 connects upper collecting chamber 32, described right collector 33 connects lower header 34, described upper collecting chamber connects 32 and connects condensation energy-saving device effluent pipe mouth 9, and described lower header 34 connects condenser water inlet pipe mouth 8.
When retain traditional waterway circulating-boiler blow-down water (water inlet) be introduced into energy-saving appliance enter boiler again, increasing new pipeline selects connection-condensation energy-saving device to connect external heat exchanger for user, namely use two water routes: boiler water-in and water-out circulation waterway, condensation energy-saving device and external heat exchanger (be such as connected to the plate type heat exchanger of user or participate in another water circulation pipe of user directly) water-in and water-out circulation waterway simultaneously.Pipeline establishes bypass simultaneously, controls turnover energy-saving appliance water temperature by regulating the discharge entering energy-saving appliance.
Embodiment recited above is only be described preferred embodiment of the present utility model; not scope of the present utility model is limited; do not departing under the utility model designs spiritual prerequisite; the various distortion that the common engineers and technicians in this area make technical solutions of the utility model and improvement, all should fall in protection domain that claims of the present utility model determine.
Claims (4)
1. a condensing normal-pressure hot-water boiler, is characterized in that: comprise boiler jacket, the rear smoke box being positioned at boiler jacket and the condensation energy-saving device be connected with rear smoke box; Described boiler jacket is respectively equipped with boiler discharging tube mouth and boiler leads to the air mouth of pipe, described condensation energy-saving device and rear smoke box are connected a boiler feed water mouth of pipe jointly, described condensation energy-saving device also connects condensation energy-saving device water inlet pipe mouth by condensation energy-saving device water inlet pipe, and described condensation energy-saving device also connects condensation energy-saving device effluent pipe mouth;
Also comprise two pipelines, a pipeline is connected with the boiler feed water mouth of pipe with boiler discharging tube mouth, and another pipeline is connected with heat exchanger, and heat exchanger is connected with condensation energy-saving device water inlet pipe mouth respectively at condensation energy-saving device effluent pipe mouth.
2. condensing normal-pressure hot-water boiler according to claim 1, is characterized in that: the base tube of described condensation energy-saving device is the path finned tube that diameter is less than 32mm.
3. condensing normal-pressure hot-water boiler according to claim 1, it is characterized in that: described boiler jacket comprises the front shell and back shell of welding and being stitched together, the material of described front shell is Q235A steel plate, the material of described back shell is 316L stainless-steel sheet, and the centre of described boiler jacket is provided with a stainless steel breviseptum.
4. according to the arbitrary described condensing normal-pressure hot-water boiler of claim 1 ~ 3, it is characterized in that: the side of described condensation energy-saving device is provided with left collector, opposite side is provided with right collector, described left collector connects upper collecting chamber, described right collector connects lower header, described upper collecting chamber connects condensation energy-saving device effluent pipe mouth, and described lower header connects condenser water inlet pipe mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520109559.8U CN204494805U (en) | 2015-02-15 | 2015-02-15 | Condensing normal-pressure hot-water boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520109559.8U CN204494805U (en) | 2015-02-15 | 2015-02-15 | Condensing normal-pressure hot-water boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204494805U true CN204494805U (en) | 2015-07-22 |
Family
ID=53574115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520109559.8U Expired - Fee Related CN204494805U (en) | 2015-02-15 | 2015-02-15 | Condensing normal-pressure hot-water boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204494805U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633933A (en) * | 2015-02-15 | 2015-05-20 | 广州贝龙环保热力设备股份有限公司 | Condensation type normal-pressure hot water boiler |
-
2015
- 2015-02-15 CN CN201520109559.8U patent/CN204494805U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633933A (en) * | 2015-02-15 | 2015-05-20 | 广州贝龙环保热力设备股份有限公司 | Condensation type normal-pressure hot water boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 Termination date: 20220215 |