CN105823218A - High-efficient condensing flue gas waste heat recovery device - Google Patents
High-efficient condensing flue gas waste heat recovery device Download PDFInfo
- Publication number
- CN105823218A CN105823218A CN201610306402.3A CN201610306402A CN105823218A CN 105823218 A CN105823218 A CN 105823218A CN 201610306402 A CN201610306402 A CN 201610306402A CN 105823218 A CN105823218 A CN 105823218A
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- China
- Prior art keywords
- flue gas
- condensation
- condensing
- heat recovery
- shell
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- Pending
Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 239000003546 flue gas Substances 0.000 title claims abstract description 52
- 238000011084 recovery Methods 0.000 title claims abstract description 31
- 239000002918 waste heat Substances 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 238000009833 condensation Methods 0.000 claims description 77
- 230000005494 condensation Effects 0.000 claims description 77
- 239000000779 smoke Substances 0.000 claims description 25
- 239000003517 fume Substances 0.000 claims description 9
- 235000019504 cigarettes Nutrition 0.000 claims description 4
- 238000005253 cladding Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 9
- 238000010438 heat treatment Methods 0.000 description 6
- 239000000428 dust Substances 0.000 description 5
- 238000013517 stratification Methods 0.000 description 4
- 230000008030 elimination Effects 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000628073 Exocelina fume Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- F24H9/00—Details
- F24H9/0005—Details for water heaters
- F24H9/0036—Dispositions against condensation of combustion products
-
- 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
- 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)
- Chimneys And Flues (AREA)
Abstract
The invention provides a high-efficiency condensing type flue gas waste heat recovery device, which comprises a condensing outer shell with a condensing cavity, a condensing inner shell with a condensing inner cavity and a condensed water pipe group with a water inlet pipe and a water outlet pipe which are diagonally distributed, wherein the condensing inner shell is arranged on the condensing cavity, the condensed water pipe group is arranged on the condensing inner cavity, a flue gas inlet is arranged on the bottom surface of the condensing outer shell, a flue gas discharge channel communicated with the condensing inner cavity is arranged on the bottom of the condensing outer shell, through holes respectively communicated with the condensing cavity and the condensing inner cavity are arranged on the upper wall surface of the condensing inner shell, the flue gas inlet, the condensing cavity, the through hole condensing inner cavity and the flue gas waste heat recovery channel for heat exchange with the condensed water pipe group are formed by the flue gas inlet, the condensing cavity, the flowing resistance of flue gas in the condensing inner cavity is equal, the condensed water pipe group is uniformly heated, the heat recovery rate of the flue gas is improved, the heat efficiency of the gas module is improved, and the using effect of the product is improved.
Description
Technical field
The present invention relates to gas fired-boiler field, be specifically related to a kind of high-efficiency condensing type flue gas waste heat recovery apparatus.
Background technology
Condensed type combustion gas module furnace is a kind of novel central heating appliance, and its effects of energy conservation and environmental protection is notable, is widely used in large-scale occasion central heating, the supplying hot waters such as Factory Building, office block, Shang Zhu community, hospital, supermarket, hotel, bath center, swimming pool.
The furnace interior of above-mentioned gas module stove is provided with several gas modules, and gas module is connected with the outlet flue above body of heater by smoke collection pipe.When gas module furnaceman makees, fuel combustion produces high temperature heat, also can discharge 160 DEG C～the high-temperature flue gas of 200 DEG C after main heat exchanger, and high-temperature flue gas is discharged in air through air-introduced machine, smoke collection pipe by the fume collecting chamber for heating module.The exhaust gas temperature of conventional boiler is even as high as more than 250 DEG C, generally also can absorb the part sensible heat in high-temperature flue gas with retracting device, but owing to being limited by retracting device structure and material, exhaust gas temperature all drops less than condensation temperature.It is clear that the sensible heat in high-temperature flue gas does not make full use of.The more important thing is: the superheated vapour in high-temperature flue gas can condense when dropping to condensation temperature and separate out substantial amounts of latent heat then entirely without utilization, and therefore, the thermal efficiency can only achieve 86%～90%.
Certainly, gas module stove can reduce exhaust gas temperature by strengthening the exchange capability of heat of heat exchanger.But being as the reduction of exhaust gas temperature, superheated vapour will become acid condensate water at gas module internal condensate.On the one hand, acid condensate water can corrode air-introduced machine, main heat exchanger and burner assembly, affects the service life of gas-heating module；On the other hand, need the air mixing of more than 10 times during fuel combustion, and the dust in air can be met humidity hysteresis through inside modules and stayed and pile up, and also can reduce the thermal efficiency, and hot-spot even can be caused time serious to burn out module.
For above-mentioned, existing condensed flue gas waste-heat recovery device, it includes blower fan, the condensation box with smoke path and the heat exchange water pipe group being arranged in condensation box.During operation, driven by blower fan, from bottom to top through heat exchange water pipe group in the high-temperature flue gas making gas module produce enters condensation box and along smoke path, carry out heat exchange with the latent heat reaching to utilize the sensible heat in high-temperature flue gas and water recovery to separate out with the backwater in heat exchange water pipe group.But, there is some deficiency following in above-mentioned waste-heat recovery device: 1, the preposition blower fan of retracting device occupies segment space, makes the useful space of retracting device reduce, limits flue gas heat recovery rate；2, retracting device inner space is narrow, affects equal wind effect, it is impossible to make full use of the heat exchange efficiency of water pipe group；3, flow of flue gas direction within retracting device and condensation flow in opposite direction, condensed water elimination speed is slow, and easy dust stratification needs periodic flushing；4, the entrance of the preposition blower fan of retracting device is monolateral with the fume collecting chamber of main heat exchanger connects, and causes the equal wind difficulty of main heat exchanger, also affects heat exchange efficiency.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, a kind of high-efficiency condensing type flue gas waste heat recovery apparatus is provided, it can expand the useful space of retracting device, make full use of flue gas heat recovery rate, all wind is effective, avoid dust stratification, improve heat exchange efficiency, reach preferable energy-saving effect and improve the use quality of retracting device.
The goal of the invention of the present invention is achieved in that a kind of high-efficiency condensing type flue gas waste heat recovery apparatus, it includes the condensation shell with condensation chamber, there is the condensation inner shell of condensation inner chamber and there is water inlet pipe and water outlet pipe to angular distribution condensate pipe group, condensation inner shell is installed on condensation chamber, condensate pipe group is installed on condensation inner chamber, condensation enclosure bottom is provided with smoke inlet, the bottom of condensation shell is provided with and condenses the smokejack that inner chamber communicates, the upper wall surface of described condensation inner shell be provided with respectively with condensation chamber, the through hole that condensation inner chamber communicates, described smoke inlet, condensation chamber, through hole condensation inner chamber, smokejack forms the flue gas waste heat recovery runner with condensate pipe group heat exchange.
Being optimized according to above-mentioned, described condensation enclosure bottom is provided with the fume collecting chamber communicated with smoke inlet.
It is optimized according to above-mentioned, the outside wall surface of described condensation chamber cladding condensation inner shell.
Being optimized according to above-mentioned, described condensation inner shell is arranged above homogenizing plate, and homogenizing plate is provided with several through holes, and several through holes are distributed on homogenizing plate equally spacedly.
Be optimized according to above-mentioned, the upper end of the smoke inlet of described smokejack be provided with from top to bottom be gradually distance from smoke inlet lead cigarette hang plate.
Being optimized according to above-mentioned, the bottom surface of described condensation inner shell is that the lower end by the smoke inlet of smokejack is the most up to the ramped bottom surface of sidewall slope.
Being optimized according to above-mentioned, described condensate pipe group has water inlet pipe and outlet pipe, water inlet pipe and outlet pipe to extend respectively to condense outside the front cover body of shell and diagonal angle is distributed on the front cover body of condensation shell.
Being optimized according to above-mentioned, described condensate pipe group includes the some serpentine-like isometric shunting water pipes moving towards to arrange, and the water inlet end of some shunting water pipes connects with water inlet pipe, outlet pipe respectively with water side.
It is an advantage of the current invention that:
1, the preposition blower fan of retracting device changes rearmounted air inducing, the inner space of horizontal expansion retracting device into, increases condensation heat exchange shunting water pipe quantity, further increases flue gas heat recovery rate；
2, by changing back to receiving apparatus internal structure, improve main heat exchanger and the equal wind condition of condensation exchanger, not only increasing main heat exchanger and the utilization rate of condensation exchanger heat exchange area, and windage is greatly decreased, the electric flux needed for saving air inducing reaches more than 30 percent；
3, the flow of flue gas direction in retracting device is consistent with condensed water flow direction, accelerates condensed water elimination speed, it is to avoid dust stratification, it is ensured that retracting device life-time service is non-maintaining, higher to the adaptability of environment；
4, this retracting device can also effectively reduce the discharge capacity of nitrogen oxides.
Accompanying drawing explanation
Accompanying drawing 1 is the axonometric chart of present pre-ferred embodiments.
Accompanying drawing 2 is the axonometric chart of another angle of present pre-ferred embodiments.
Accompanying drawing 3 is the axonometric chart (removing condensation upper surface of outer cover) of present pre-ferred embodiments.
Accompanying drawing 4 is the axonometric chart (removing condensation upper surface of outer cover) of another angle of present pre-ferred embodiments.
Accompanying drawing 5 is the flue gas flow direction figure of present pre-ferred embodiments.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings.
With reference to the accompanying drawings shown in 1 to accompanying drawing 5, the high-efficiency condensing type flue gas waste heat recovery apparatus of the present invention, it includes that described condensation box includes having the shell 1 of condensation chamber 11, has the condensation inner shell 2 of condensation inner chamber 21 and the condensate pipe group 3 of resistance flow equalizing function such as have.Described condensation inner shell 2 is installed on condensation chamber 11, and condensate pipe group 3 is installed on condensation inner chamber 21.Being provided with smoke inlet 4 bottom condensation shell 1, be provided with fume collecting chamber 8 bottom condensation shell 1, fume collecting chamber's inner chamber 81 communicates with smoke inlet 4, i.e. fume collecting chamber 4 bottom retracting device connects with the fume collecting chamber of main heat exchanger, makes the equal wind of main heat exchanger effective, improves heat exchange efficiency.And, the bottom of condensation shell 1 is provided with and condenses the smokejack 5 that inner chamber 21 communicates, and the upper wall surface of described condensation inner shell 2 is provided with through hole 6.In practical operation, condensation inner shell 2 is arranged above homogenizing plate, and homogenizing plate has been provided with several through holes 6, and several through holes 6 are distributed on homogenizing plate equally spacedly, and described through hole 6 communicates with condensation chamber 11, condensation inner chamber 21 respectively.Wherein, described smoke inlet 4, condensation chamber 11, through hole 6 condense inner chamber 21, smokejack 5 forms the flue gas waste heat recovery runner 7 with condensate pipe group 3 heat exchange.
When module furnace runs, module furnace produces flue gas, and flue gas utilization fume collecting chamber 8 concentrates and enters flue gas waste heat recovery runner 7 and flow along flue gas waste heat recovery runner 7.Period, the flue gas containing high-temperature residual heat and condensate pipe group 3 carry out heat exchange.Wherein, due to the effect of flue gas waste heat recovery runner 7, make flue gas the most up can be moved towards by the bottom of condensation inner shell 2 outer wall.Subsequently, flue gas enters condensation inner chamber 21 by the through hole 6 of homogenizing plate.Effect at through hole 6, flue gas flows to the outlet flue of smokejack 5 to current-sharing from top to bottom in condensation inner chamber 21, smoke flow resistance is equal, condensate pipe group 3 is heated evenly, make backwater in condensate pipe group 3 fully absorb the sensible heat in gas module high-temperature smoke discharging and latent heat that water recovery is analysed, make water obtain effective pre-heat effect.
With reference to shown in Fig. 1 Yu Fig. 5, described condensate pipe group 3 has water inlet pipe 31 and outlet pipe 32, water inlet pipe 31 and outlet pipe 32 to extend respectively to condense outside the front cover body 12 of shell 1.Further, water inlet pipe 31 and outlet pipe 32 diagonal angle are distributed on the front cover body 12 of condensation shell 1.Wherein, condensate pipe group 3 includes that the water inlet end of some shunting some of water pipe 31. shunting water pipes 33 connects with water inlet pipe 13, outlet pipe 14 respectively with water side, and every serpentine-like trend of shunting water pipe 33 is arranged, add large shunt water pipe 33 heating surface area, strengthen the thermal efficiency of module furnace.And, the shunting water pipe 33 of every is all isometric, then the water inlet end diagonal angle of the water inlet end and outlet pipe 14 fitting into water pipe 13 is distributed on front cover body 12.So, when module furnace runs, flow through the water of condensing tube group 3 all by identical resistance, reduce the heat energy consume of the water after preheating while causing water thermally equivalent, improve the thermal efficiency of gas module further, reach preferable effects of energy conservation and environmental protection.
With reference to shown in Fig. 2 to Fig. 5, refine further, the outside wall surface of described condensation chamber 11 cladding condensation inner shell 2.So, both can utilize fume afterheat that condensation inner shell 2 is heated, and improve the temperature in condensation inner chamber 21, heat-blocking action can be made again, it is to avoid the temperature in condensation inner chamber 21 had reduced.
And, the upper end of the smoke inlet of smokejack 5 be provided with from top to bottom be gradually distance from smoke inlet lead cigarette hang plate 9, flue gas can be arranged to the outlet flue direction of smokejack 5 outward along with leading cigarette hang plate 9, control the flue gas speed in condensation inner chamber 21 flowing further, equal to reach at condensation inner chamber 21 smoke flow resistance, reduce energy consumption.
Further, the bottom surface of described condensation inner shell 2 be the lower end of the smoke inlet by smokejack 5 the most up to the ramped bottom surface 22 of sidewall slope, the condensed water produced in heat exchanging process can be made to process to the outlet flue direction centralized collection of smokejack 5 along with ramped bottom surface 22；Meanwhile, the direction dropped with condensed water in the direction of flow of flue gas is consistent, and condensed water elimination speed is fast; reduce condensed water corrosion air-introduced machine, main heat exchanger and burner assembly; guarantee the service life of gas-heating module, and avoid dust stratification, it is ensured that the use quality of retracting device.
Above-mentioned specific embodiment is only the preferable detailed description of the invention of effect of the present invention, all identical with the high-efficiency condensing type flue gas waste heat recovery apparatus of the present invention or the structure of equivalent, the most within the scope of the present invention.
Claims (8)
- null1. a high-efficiency condensing type flue gas waste heat recovery apparatus，It is characterized in that: described it include the condensation shell (1) with condensation chamber (11)、There is the condensation inner shell (2) of condensation inner chamber (21) and there is water inlet pipe and water outlet pipe to angular distribution condensate pipe group (3)，Condensation inner shell (2) is installed on condensation chamber (11)，Condensate pipe group (3) is installed in condensation inner chamber (21)，Condensation shell (1) bottom surface is provided with smoke inlet (4)，The bottom of condensation shell (1) is provided with and condenses the smokejack (5) that inner chamber (21) communicates，The upper wall surface of described condensation inner shell (2) be provided with respectively with condensation chamber (11)、The through hole (6) that condensation inner chamber (21) communicates，Described smoke inlet (4)、Condensation chamber (11)、Through hole (6) condensation inner chamber (21)、Smokejack (5) forms the flue gas waste heat recovery runner (7) with condensate pipe group (3) heat exchange.
- High-efficiency condensing type flue gas waste heat recovery apparatus the most according to claim 1, it is characterised in that: described condensation shell (1) bottom surface is provided with the fume collecting chamber (8) communicated with smoke inlet (4).
- High-efficiency condensing type flue gas waste heat recovery apparatus the most according to claim 1, it is characterised in that: the outside wall surface of described condensation chamber (11) cladding condensation inner shell (2).
- High-efficiency condensing type flue gas waste heat recovery apparatus the most according to claim 1, it is characterised in that: described condensation inner shell (2) is arranged above homogenizing plate, and homogenizing plate has been provided with several through holes (6), and several through holes (6) are distributed on homogenizing plate equally spacedly.
- High-efficiency condensing type flue gas waste heat recovery apparatus the most according to claim 1, it is characterised in that: the upper end of the smoke inlet of described smokejack (5) be provided with from top to bottom be gradually distance from smoke inlet lead cigarette hang plate (9).
- High-efficiency condensing type flue gas waste heat recovery apparatus the most according to claim 1, it is characterised in that: the bottom surface of described condensation inner shell (2) is that the lower end of the smoke inlet by smokejack (5) is the most up to the ramped bottom surface (22) of sidewall slope.
- 7. according to high-efficiency condensing type flue gas waste heat recovery apparatus described in any one of claim 1 to 6, it is characterized in that: described condensate pipe group (3) have water inlet pipe (31) and outlet pipe (32), water inlet pipe (31) and outlet pipe (32) to extend respectively to condense the front cover body (12) of shell (1) outward and diagonal angle is distributed on the front cover body (12) condensing shell (1).
- High-efficiency condensing type flue gas waste heat recovery apparatus the most according to claim 7, it is characterized in that: described condensate pipe group (3) includes the some serpentine-like isometric shunting water pipes (33) moving towards to arrange, and the water inlet end of some shuntings water pipe (33) connects with water inlet pipe (31), outlet pipe (32) respectively with water side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610306402.3A CN105823218A (en) | 2016-05-11 | 2016-05-11 | High-efficient condensing flue gas waste heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610306402.3A CN105823218A (en) | 2016-05-11 | 2016-05-11 | High-efficient condensing flue gas waste heat recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105823218A true CN105823218A (en) | 2016-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610306402.3A Pending CN105823218A (en) | 2016-05-11 | 2016-05-11 | High-efficient condensing flue gas waste heat recovery device |
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| CN (1) | CN105823218A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112432362A (en) * | 2020-11-20 | 2021-03-02 | 无锡锡州机械有限公司 | Condensation heat exchanger |
| CN113593914A (en) * | 2020-09-18 | 2021-11-02 | 山西图门新能源有限公司 | High-stability explosion-proof carbon-based capacitor module |
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2016
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113593914A (en) * | 2020-09-18 | 2021-11-02 | 山西图门新能源有限公司 | High-stability explosion-proof carbon-based capacitor module |
| CN113593915A (en) * | 2020-09-18 | 2021-11-02 | 山西图门新能源有限公司 | Carbon back electric capacity module of high security |
| CN113593915B (en) * | 2020-09-18 | 2022-09-06 | 山西图门新能源有限公司 | Carbon back electric capacity module of high security |
| CN113593914B (en) * | 2020-09-18 | 2022-09-06 | 山西图门新能源有限公司 | High-stability explosion-proof carbon-based capacitor module |
| CN112432362A (en) * | 2020-11-20 | 2021-03-02 | 无锡锡州机械有限公司 | Condensation heat exchanger |
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Application publication date: 20160803 |