CN218955552U - Fast-assembling formula waste heat from flue gas recovery integration unit - Google Patents
Fast-assembling formula waste heat from flue gas recovery integration unit Download PDFInfo
- Publication number
- CN218955552U CN218955552U CN202223000851.5U CN202223000851U CN218955552U CN 218955552 U CN218955552 U CN 218955552U CN 202223000851 U CN202223000851 U CN 202223000851U CN 218955552 U CN218955552 U CN 218955552U
- Authority
- CN
- China
- Prior art keywords
- flue gas
- waste heat
- heat
- water
- heat exchange
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Air Supply (AREA)
Abstract
A fast-assembled flue gas waste heat recovery integrated unit belongs to the technical field of boiler heat supply and waste heat recovery. The main components of the flue gas waste heat recovery system are integrated into a vertical heat exchange tower integral structure, wherein the lower part of the integrated unit is a skid-mounted thermodynamic module, and the middle upper part of the integrated unit is a flue gas spray heat exchanger. Flue gas from the boiler and the energy-saving device enters the tower from the middle lower part of the tower, exchanges heat with low-temperature waste heat water in a countercurrent way, and is discharged from a chimney section at the top of the tower; the high-temperature water is sent into the lower skid-mounted thermodynamic module, and returns to the flue gas spray heat exchanger to continuously cool and heat the flue gas deeply after heating the backwater of the heat supply network and the process water. The flue gas waste heat recovery integrated unit can integrate flue gas waste heat recovery equipment components, partial pipelines and the like into one integral device, greatly reduces the occupied space of the equipment, obviously shortens the field installation time, reduces the investment and operation and maintenance cost, and is suitable for flue gas waste heat recovery of small and medium-sized coal-fired boilers, gas-fired boilers, biomass boilers, garbage power plants and other scenes.
Description
Technical Field
The utility model relates to a fast-assembled flue gas waste heat recovery integrated unit, and belongs to the technical field of boiler heat supply and waste heat recovery.
Background
The boiler smoke exhausted by burning fuel such as coal, natural gas, biomass, municipal refuse and the like contains a large amount of steam, and a large amount of latent heat and sensible heat are exhausted or exhausted white and loose. For the degree of depth recovery this kind of high wet flue gas waste heat, the waste heat utilization mode that current is commonly used includes: the flue gas condensation heat recovery device based on absorption heat pump heat exchange is a partition type low-temperature economizer or an energy economizer, but the former has the problems of corrosion, high cost of heat exchange materials and the like, and the latter has the problems that the absorption heat pump needs a large amount of driving heat sources, the cost is high, the investment recovery period is often long and the like.
The serial technology of flue gas waste heat recovery based on steam heat-carrying cycle developed by Qinghua university comprises a full heat recovery and flue gas white elimination device (2017206805342) of flue gas and tower integrated boiler flue gas, and the like, and adopts the modes of recovering waste heat from a flue gas low-temperature section to heat low-temperature waste water, heating and humidifying the flue gas inlet air of the boiler so as to improve the moisture content of the flue gas and the dew point temperature thereof, and recovering waste heat from a flue gas high-temperature section to heat low-temperature waste water such as heat supply network backwater and the like, thereby realizing the purposes of greatly reducing the flue gas temperature to 20-30 ℃ and comprehensively recovering the sensible heat and the latent heat thereof, but the problems of large occupied space, large resistance of a water-air system, high power consumption, high initial investment and the like exist in the heat exchanger structure and the matched equipment system, so the heat exchange mode and the equipment system are required to be further optimized.
In addition, a large amount of water vapor and the like contained in the chimney cause obvious white fog phenomenon, particularly a large amount of pollutants such as soluble fine particles in the discharged smoke of boilers of coal-fired, biomass and garbage power plants are regarded as important pollution problems, so that deep purification and even near zero emission of the smoke pollutants are required, and substantial white elimination treatment is realized.
Disclosure of Invention
The utility model aims at solving the problem that the boiler exhaust gas contains a large amount of water vapor, and integrates the main components of the flue gas waste heat recovery system into a vertical heat exchange tower integral structure, so that the waste heat of the boiler exhaust gas containing a large amount of water vapor can be extracted for heating the heat supply network water, and further the deep waste heat recovery and the substantial white elimination treatment of the boiler exhaust gas are realized.
The specific description of the utility model is as follows: the utility model provides a fast-assembling formula flue gas waste heat recovery integration unit, this flue gas waste heat recovery integration unit 3 advance the mouth and link to each other with the export of the high temperature flue gas E of boiler 1 through energy-saving appliance 2, its characterized in that: the integrated unit 3 for recovering the waste heat of the flue gas adopts a vertical heat exchange tower integral structure, the lower part of the integrated unit is a skid-mounted thermodynamic module 31, the middle upper part of the integrated unit is a flue gas spray tower 32, the skid-mounted thermodynamic module 31 comprises a heat network water preheating plate 4 and a waste heat water pump 5, a flue gas tower bottom water tank 6 is arranged at the bottom of the flue gas spray tower 32, the upper part of the flue gas tower bottom water tank 6 is a smoke homogenizing section 7, a lateral smoke inlet of the smoke homogenizing section 7 is communicated with high-humidity flue gas F, the upper part of the smoke homogenizing section 7 is communicated with a spray heat exchange section 8, a spray device 9 is arranged at the upper part of the spray heat exchange section 8, a flue gas humidity adjusting device 10 is communicated with a flue gas outlet section 11, the upper part of the flue gas outlet section 11 is communicated with a chimney section 12, a low-temperature smoke exhaust Q at the smoke outlet of the chimney section 12 is communicated with the atmosphere, a high-temperature waste heat water outlet of the flue gas tower bottom water tank 6 is connected with an inlet of the waste heat water pump 5, an outlet of the water pump 5 is connected with a heating side inlet of the heat network water preheating plate 4, the heat exchange section 9 is communicated with a water inlet of the heat network water preheating plate 4, the water inlet of the heat exchange network 4 is connected with a water heating side of the heat exchange network 4, and the water inlet of the heat exchange network is connected with the water heating network water heating device is heated by the water heating side 4, and the water is communicated with the water outlet of the heat exchange network is heated by the water heating network 4.
The spraying heat exchange section 8 is a countercurrent heat exchange structure which is vertically arranged by flue gas and spray water, wherein an empty section spraying heat exchange structure or a filler heat exchange structure is adopted inside.
The spraying device 9 and the low-temperature spraying device 9 adopt a water distribution structure consisting of N layers of spraying structures, wherein N is more than or equal to 1.
The skid-mounted thermal module 31 adopts an integral skid-mounted structure, integrates the heat supply network water preheating plate 4, the waste heat water pump 5 and pipe fittings between the heat supply network water preheating plate and the waste heat water pump, and is arranged in an integral shell.
The utility model innovatively realizes that all the flue gas waste heat recovery equipment is integrated into one integrated flue gas waste heat recovery unit, thereby greatly reducing the occupied space of the equipment, obviously shortening the field installation time and reducing the investment and operation and maintenance costs, being widely applicable to the scenes of medium and small coal-fired boilers, gas-fired boilers, biomass boilers, garbage power plants and the like, being beneficial to the popularization of the technical mode and exerting the due energy-saving and emission-reducing benefits.
Drawings
Fig. 1 is a schematic diagram of the system of the present utility model.
The component numbers and names in fig. 1 are as follows.
The boiler comprises a boiler 1, an economizer 2, a flue gas waste heat recovery integrated unit 3, a skid-mounted thermal module 31, a flue gas spray tower 32, a heat supply network water preheating plate heat exchange 4, a waste heat water pump 5, a flue gas tower bottom water tank 6, a smoke homogenizing section 7, a spray heat exchange section 8, a spray device 9, a flue gas humidity adjusting device 10, a flue gas outlet section 11, a chimney section 12, ambient air A, high-temperature flue gas E, high-humidity flue gas F, heat supply network backwater water G, heat supply network backwater water H and low-temperature smoke discharging Q.
Detailed Description
FIG. 1 is a schematic diagram and embodiment of a system of the present utility model.
Specific example 1 of the present utility model is as follows.
The quick-assembly type flue gas waste heat recovery integrated unit is characterized in that a flue gas inlet of the flue gas waste heat recovery integrated unit 3 is connected with an outlet of high-temperature flue gas E of a boiler 1 through an economizer 2, the flue gas waste heat recovery integrated unit 3 adopts a vertical heat exchange tower integrated structure, a lower portion of the flue gas waste heat recovery integrated unit is a skid-mounted heating module 31, an upper portion of the skid-mounted heating module is a flue gas spray tower 32, the skid-mounted heating module 31 comprises a heat-net water preheating plate 4 and a waste heat water pump 5, a flue gas bottom water tank 6 is arranged at the bottom of the flue gas spray tower 32, an upper portion of the flue gas bottom water tank 6 is a smoke homogenizing section 7, a lateral flue gas inlet of the smoke homogenizing section 7 is communicated with a high-humidity flue gas F, an upper portion of the smoke homogenizing section 7 is communicated with a spray heat exchange section 8, an upper portion of the spray heat exchange section 8 is provided with a spray device 9, an upper portion of the spray device 9 is provided with a flue gas humidity adjusting device 10, an upper portion of the flue gas humidity adjusting device 10 is communicated with a flue gas outlet section 11, an upper portion of the flue gas outlet section 11 is communicated with a chimney section 12, a low-temperature flue gas Q at a flue gas outlet of the chimney section 12 is communicated with the flue gas outlet of the preheating plate, a water inlet is communicated with the water inlet of the flue gas preheating plate 4, a water inlet of the flue gas preheating plate is communicated with the water pump 4, and the water inlet of the flue gas is communicated with the water inlet of the flue gas preheating plate 4, and the water pump is communicated with the water inlet of the water heater 4, and the water inlet is heated by the water inlet of the flue gas pump is communicated with the water inlet of the preheating plate 4, and the water is heated by the water inlet of the water.
The spraying heat exchange section 8 is a countercurrent heat exchange structure which is vertically arranged by flue gas and spray water, wherein an empty section spraying heat exchange structure is adopted inside.
The spraying device 9 and the low-temperature spraying device 9 adopt a water distribution structure consisting of N layers of spraying structures, wherein N is more than or equal to 1.
The skid-mounted thermal module 31 adopts an integral skid-mounted structure, integrates the heat supply network water preheating plate 4, the waste heat water pump 5 and pipe fittings between the heat supply network water preheating plate and the waste heat water pump, and is arranged in an integral shell.
It should be noted that, the present utility model proposes to use a flue gas waste heat recovery integrated unit structure to realize deep condensation heat recovery of boiler flue gas, and according to this general solution, there may be different implementation measures and implementation devices with different structures, the above-mentioned implementation is only one of them, and any other similar implementation with simple modification, for example, different heat exchange element structures and simple modification thereof are used; or to carry out the variants and the like which can be envisaged by the average expert, or to apply the technical means in the same or similar structure to different flue gas or exhaust types and other similar applications, all falling within the scope of protection of the present utility model.
Claims (5)
1. The utility model provides a fast-assembling formula flue gas waste heat recovery integration unit, the mouth that advances of this flue gas waste heat recovery integration unit (3) links to each other with the export of high temperature flue gas (E) of boiler (1) through energy-saving appliance (2), its characterized in that: the integrated unit (3) for recovering the flue gas waste heat adopts a vertical heat exchange tower integral structure, the lower part of the integrated unit is a skid-mounted heating power module (31), the middle upper part of the integrated unit is a flue gas spray tower (32), the skid-mounted heating power module (31) comprises a heat supply network water preheating plate heat exchanger (4) and a waste heat water pump (5), a flue gas tower bottom water tank (6) is arranged at the bottom of the flue gas spray tower (32), the upper part of the flue gas tower bottom water tank (6) is a smoke homogenizing section (7), a lateral smoke inlet of the smoke homogenizing section (7) is communicated with high-humidity flue gas (F), the upper part of the smoke homogenizing section (7) is communicated with a spray heat exchange section (8), a spray device (9) is arranged at the upper part of the spray heat exchange section (8), a flue gas humidity adjusting device (10) is arranged at the upper part of the spray device (9), the upper part of the flue gas humidity adjusting device (10) is communicated with a flue gas outlet section (11), the upper part of the flue gas outlet section (11) is communicated with a flue gas tower bottom water tank (12), a low-temperature smoke outlet (Q) at the smoke outlet of the flue gas tower bottom water tank (6) is communicated with the atmosphere, the waste heat water inlet of the heat exchange device (4) is connected with the heat supply network water inlet of the heat pump (5), the heat exchange device (4) is connected with the heat supply network water inlet of the heat water pump (4), the inlet of the heated side of the heat supply network water preheating plate exchanger (4) is communicated with heat supply network backwater water (G), and the outlet of the heated side of the heat supply network water preheating plate exchanger (4) is communicated with heat supply network backwater water (H).
2. The quick-assembly type flue gas waste heat recovery integrated unit according to claim 1, wherein the spraying heat exchange section (8) is a vertically arranged countercurrent heat exchange structure formed by flue gas and spray water, and an empty section spraying heat exchange structure is adopted inside the countercurrent heat exchange structure.
3. The quick-assembly type flue gas waste heat recovery integrated unit according to claim 1, wherein the spraying heat exchange section (8) is a vertically arranged countercurrent heat exchange structure formed by flue gas and spraying water, and a filler heat exchange structure is adopted inside the countercurrent heat exchange structure.
4. The quick-assembly type flue gas waste heat recovery integrated unit according to claim 1, wherein the spraying device (9) adopts a water distribution structure formed by N layers of spraying structures, and N is greater than or equal to 1.
5. The quick-assembly type flue gas waste heat recovery integrated unit as claimed in claim 1, wherein the skid-mounted thermal module (31) adopts an integral skid-mounted structure, integrates a heat supply network water preheating plate exchanger (4), a waste heat water pump (5) and pipe fittings therebetween, and is arranged in an integral shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223000851.5U CN218955552U (en) | 2022-11-03 | 2022-11-03 | Fast-assembling formula waste heat from flue gas recovery integration unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223000851.5U CN218955552U (en) | 2022-11-03 | 2022-11-03 | Fast-assembling formula waste heat from flue gas recovery integration unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218955552U true CN218955552U (en) | 2023-05-02 |
Family
ID=86111152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223000851.5U Active CN218955552U (en) | 2022-11-03 | 2022-11-03 | Fast-assembling formula waste heat from flue gas recovery integration unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218955552U (en) |
-
2022
- 2022-11-03 CN CN202223000851.5U patent/CN218955552U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100402814C (en) | Smoke low-temperature residual heat utilization system with natural gas cooling-heating combined power device and operating method thereof | |
| CN104110675B (en) | A kind of boiler smoke degree of depth heat reclamation device and method | |
| CN202109656U (en) | Natural gas and smoke condensation type waste heat utilization device | |
| CN104534450B (en) | A kind of coal steam-electric plant smoke comprehensive waste-heat utilizing device | |
| CN205783036U (en) | A kind of power-plant flue gas system heat-exchanger rig | |
| CN102650431A (en) | Stepped recycle method for residual heat of fuel gas | |
| CN107178814A (en) | A kind of thermal power plant boiler fume afterheat is used for the energy conserving system of central heating | |
| CN103486603B (en) | A kind of flue gas processing device and processing method | |
| CN111396913A (en) | System and method for recovering flue gas waste heat and moisture of coal-fired unit | |
| CN1814547A (en) | Electric furnace method yellow phosphorus tail gas residual heat comprehensive balance utilizing system | |
| CN107166420A (en) | Boiler exhaust gas the heat wet direct recovery method and device circulated based on vapor heat-carrying | |
| CN109945277A (en) | A kind of energy conserving system being used for central heating using electric heat pump depth recycling remaining heat of flue gas from steam power plant | |
| CN111594813A (en) | Combined-cycle efficient clean power generation device and method utilizing low-temperature latent heat of flue gas | |
| CN218955552U (en) | Fast-assembling formula waste heat from flue gas recovery integration unit | |
| CN207214097U (en) | A kind of coal-burning boiler based on smoke evacuation vapor internal-circulation type condensing units | |
| CN107238092A (en) | The method and apparatus of coal-burning boiler smoke evacuation ultralow temperature condensing units and air intake humidification | |
| CN204084324U (en) | A kind of boiler smoke degree of depth heat reclamation device | |
| CN207162578U (en) | A kind of boiler exhaust gas direct contact type total heat recovery and the white device that disappears | |
| CN2444189Y (en) | Clausilium type heat energy recover using flue gas cooling | |
| CN219083148U (en) | Heat pump auxiliary boiler flue gas ultralow-temperature near-zero emission waste heat recovery unit | |
| CN104075303A (en) | Flue gas waste-heat utilization device for thermal oil furnace | |
| CN212057351U (en) | Recovery system of residual heat of flue gas and moisture of coal-fired unit | |
| CN212003289U (en) | System for flue gas waste heat and moisture are retrieved in desulfurization thick liquid flash distillation | |
| CN211822344U (en) | Biomass distributed heat supply-based waste-free boiler cleaning process system | |
| CN210861049U (en) | Gas boiler flue gas waste heat and condensate water recycling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |