CN202074498U - High-efficient waste heat recovery device of gas boiler - Google Patents
High-efficient waste heat recovery device of gas boiler Download PDFInfo
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- CN202074498U CN202074498U CN2011201338888U CN201120133888U CN202074498U CN 202074498 U CN202074498 U CN 202074498U CN 2011201338888 U CN2011201338888 U CN 2011201338888U CN 201120133888 U CN201120133888 U CN 201120133888U CN 202074498 U CN202074498 U CN 202074498U
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- heat exchanger
- heat recovery
- graphite
- recovery device
- boiler
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Abstract
The utility model relates to a high-efficient waste heat recovery device of a gas boiler, comprising a boiler gas exhaust duct and a set of waste heat recovery device connected to the duct. The waste heat recovery device includes a graphite heat exchanger, a water storage tank, a pipeline and a valve. One end of the graphite heat exchanger is connected to the water storage tank, and the other end is connected to an exhaust mouth of the boiler through the pipeline and the valve. The high-efficient waste heat recovery device can save 7-10% energy, can be used under a highest temperature of 200 DEG and has a recovery hot water temperature over 60 DEG. The high-efficient waste heat recovery device is strong in corrosion resistance, compact in structure, small in occupation area, convenient in operation and maintenance, and long in service lifetime.
Description
Technical field
[0001] the utility model relates to the efficient waste-heat recovery device of a kind of gas fired-boiler, belongs to heat transmission equipment and makes the field.
Background technology
[0002] flue-gas temperature of gas fired-boiler and other similar incinerators is all very high, contains the more used heat that can recycle, also contains a certain amount of Korrosionsmedium.The installation that has at the boiler of usefulness at present metal economizer recovery section used heat, the direct discharging that has.All do not recycle this part used heat well, caused energy waste and contaminated environment.
Summary of the invention
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, provides a kind of gas fired-boiler efficient waste-heat recovery device.
The utility model provides a kind of gas fired-boiler efficient waste-heat recovery device, comprise flue, and the waste heat recovery plant that is connected with described flue of cover, described waste heat recovery plant comprises heat exchanger, water storagetank, water circulating pump and link pipeline, valve, instrument between them, described heat exchanger two ends are connected described water storagetank by water circulating pump with pipeline, described heat exchanger is connected with the exhaust opening of boiler by described smoke pipe road.
Described heat exchanger comprises graphite heat exchanger tube, graphite tube plate, upper cover, shell, low head, and described upper cover, graphite tube plate, shell, low head are fixedly connected sequentially, and are inserted with described graphite heat exchanger tube on the described graphite tube plate.
Described graphite heat exchanger tube and graphite tube plate adopt the single tube sealing and fixing.
Described shell is provided with gas approach, inspection socket, ash hole, exhanst gas outlet.
Described graphite heat exchanger tube adopts equilateral triangle to arrange in described stringing mode of changing on the graphite tube plate.
This high efficiency boiler waste-heat recovery device can energy-conservation 7-10%.200 ℃ of maximum operation (service) temperatures.Reclaim the hot water temperature greater than 60 ℃.Have that corrosion resistance is strong, compact conformation, characteristics such as floor space is little, operating maintenance is convenient, long service life.
Description of drawings
The efficient waste-heat recovery device system flow of a kind of gas fired-boiler of Fig. 1 the utility model schematic diagram.
Fig. 2 is a graphite heat exchanger structural representation in the efficient waste-heat recovery device of a kind of gas fired-boiler of the utility model;
Wherein: 1 flue, 2 graphite heat exchangers, 3 water storagetanks, 26 water circulating pumps, 8 graphite heat exchanger tubes, 12 graphite tube plates, 13 upper covers, 13 shells, 15 low heads, 16 gas approach, 17 inspection sockets, 18 ash holes, 19 exhanst gas outlets, 20 temperature dial gauges, 21 liquid levels control siren, 23 pressure indicators, 24 fluid level controllers, 25 liquid level dial gauges, 26 circulating pumps
The specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings and the specific embodiments.
As shown in Figure 1, the efficient waste-heat recovery device of a kind of gas fired-boiler, comprise flue, and the waste heat recovery plant that is connected with described flue of cover, described waste heat recovery plant comprises heat exchanger, water storagetank, water circulating pump and link pipeline, valve, instrument between them, described heat exchanger two ends are connected described water storagetank by water circulating pump with pipeline, described heat exchanger is connected with the exhaust opening of boiler by described smoke pipe road.
Described graphite heat exchanger comprises graphite heat exchanger tube, graphite tube plate, upper cover, shell, low head, and described upper cover, graphite tube plate, shell, low head are fixedly connected sequentially, and are inserted with described graphite heat exchanger tube on the described graphite tube plate.
Described graphite heat exchanger tube and graphite tube plate adopt the single tube sealing and fixing.
Described graphite heat exchanger shell is provided with gas approach, inspection socket and ash hole.
Described graphite heat exchanger tube adopts equilateral triangle to arrange in described stringing mode of changing on the graphite tube plate.
Seal between described graphite heat exchanger tube and the graphite tube plate is arranged in the graphite heat exchanger tube low-temperature receiver district.
The high-temperature flue gas that boiler is discharged enters heat exchanger by flue, carries out heat exchange with cooling water in heat exchanger, and flue-gas temperature reduces cooling water temperature and rises, and reclaims waste heat wherein.Flue gas after the cooling enters smoke stack emission, reduces the influence to environment.
Flue cylindrical steel structure, flue gas passes through internally, connects boiler and heat exchanger.Can utilize original for transformation project.
The heat exchanger cylindrical shape is jacket structured, is made up of upper cover, heat exchanging piece, housing, low head, hermetically-sealed construction etc.; Inner is heat exchange element with the graphite material, and the etching problem that promptly solves flue gas heat exchanging device overcomes the problem that steel material heat transfer coefficient is little, cost is high again.The fluorubber ο type that is sealed into circle between single-piece graphite heat exchange element and the tube sheet.By cooling water, cooling water enters from low head, gathers outflow from upper cover, is raise by the high-temperature flue gas temperature after heating in the housing in the vertical hole of heat exchanging piece.The outside is a steel shell, and flue gas is mobile between box hat and graphite heat exchanging piece, goes out under enterprising, is lowered the temperature by the water quench in the heat exchanging piece.Encapsulant between graphite piece and the box hat adopts the tetrafluoro filler.
Water storage tank is used to store boiler feedwater, cylindrical shape or rectangular configuration, and volume calculates definite according to water temperature and heat exchange amount.Have the liquid automatic control device, pipeline,, instrument, valve are used to connect, control the water yield between each equipment, control the water yield automatically according to flue-gas temperature and cooling water temperature.
Claims (5)
1. efficient waste-heat recovery device of gas fired-boiler, it is characterized in that, comprise flue (1), and the waste heat recovery plant that is connected with described flue of cover, described waste heat recovery plant comprises heat exchanger (2), water storagetank (3), water circulating pump (26) and link pipeline, valve, instrument between them, described heat exchanger (2) two ends are connected described water storagetank (3) by water circulating pump (26) with pipeline, described heat exchanger (2) is connected with the exhaust opening of boiler by described smoke pipe road (1).
2. the efficient waste-heat recovery device of a kind of gas fired-boiler according to claim 1, it is characterized in that: described heat exchanger comprises graphite heat exchanger tube (8), graphite tube plate (12), upper cover (14), shell (13), low head (15), described upper cover (14), graphite tube plate (12), shell (13), low head (15) are fixedly connected sequentially, and are inserted with described graphite heat exchanger tube (8) on the described graphite tube plate (12).
3. the efficient waste-heat recovery device of a kind of gas fired-boiler according to claim 1 is characterized in that: described graphite heat exchanger tube (12) adopts the single tube sealing and fixing with graphite tube plate (12).
4. the efficient waste-heat recovery device of a kind of gas fired-boiler according to claim 1 is characterized in that: described shell (13) is provided with gas approach (16), inspection socket (17), ash hole (18), exhanst gas outlet (19).
5. the efficient waste-heat recovery device of a kind of gas fired-boiler according to claim 1 is characterized in that: described graphite heat exchanger tube (8) adopts equilateral triangle to arrange in described stringing mode of changing on the graphite tube plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201338888U CN202074498U (en) | 2011-04-29 | 2011-04-29 | High-efficient waste heat recovery device of gas boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201338888U CN202074498U (en) | 2011-04-29 | 2011-04-29 | High-efficient waste heat recovery device of gas boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202074498U true CN202074498U (en) | 2011-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201338888U Expired - Lifetime CN202074498U (en) | 2011-04-29 | 2011-04-29 | High-efficient waste heat recovery device of gas boiler |
Country Status (1)
| Country | Link |
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| CN (1) | CN202074498U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471407A (en) * | 2013-09-06 | 2013-12-25 | 南通曼特威金属材料有限公司 | Smelting furnace waste heat recovery system for aluminum ingot production |
| CN104100985A (en) * | 2014-07-18 | 2014-10-15 | 无锡华威耐火材料有限公司 | Desulfurized boiler flue gas self-circulation regenerator |
| CN104266409A (en) * | 2014-09-26 | 2015-01-07 | 北京金房暖通节能技术股份有限公司 | Water-source heat pump unit and flue gas waste heat recovery device combined operation system and control method thereof |
| CN107042032A (en) * | 2017-03-06 | 2017-08-15 | 江苏省特种设备安全监督检验研究院南通分院 | Energy-saving graphite multitube smoke duster, its method of work and its repair method |
| CN107782175A (en) * | 2017-10-31 | 2018-03-09 | 天津华电北宸分布式能源有限公司 | A kind of gas fired-boiler waste heat recycles equipment |
-
2011
- 2011-04-29 CN CN2011201338888U patent/CN202074498U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471407A (en) * | 2013-09-06 | 2013-12-25 | 南通曼特威金属材料有限公司 | Smelting furnace waste heat recovery system for aluminum ingot production |
| CN104100985A (en) * | 2014-07-18 | 2014-10-15 | 无锡华威耐火材料有限公司 | Desulfurized boiler flue gas self-circulation regenerator |
| CN104266409A (en) * | 2014-09-26 | 2015-01-07 | 北京金房暖通节能技术股份有限公司 | Water-source heat pump unit and flue gas waste heat recovery device combined operation system and control method thereof |
| CN104266409B (en) * | 2014-09-26 | 2018-04-03 | 北京金房暖通节能技术股份有限公司 | Water source heat pump units and flue gas waste heat recovery apparatus combined operation system and its control method |
| CN107042032A (en) * | 2017-03-06 | 2017-08-15 | 江苏省特种设备安全监督检验研究院南通分院 | Energy-saving graphite multitube smoke duster, its method of work and its repair method |
| CN107782175A (en) * | 2017-10-31 | 2018-03-09 | 天津华电北宸分布式能源有限公司 | A kind of gas fired-boiler waste heat recycles equipment |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111214 |
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| CX01 | Expiry of patent term |