CN210979896U - Boiler flue gas waste heat conversion system - Google Patents
Boiler flue gas waste heat conversion system Download PDFInfo
- Publication number
- CN210979896U CN210979896U CN201921149229.6U CN201921149229U CN210979896U CN 210979896 U CN210979896 U CN 210979896U CN 201921149229 U CN201921149229 U CN 201921149229U CN 210979896 U CN210979896 U CN 210979896U
- Authority
- CN
- China
- Prior art keywords
- water
- flue gas
- pipeline
- boiler
- hot water
- 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
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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The utility model discloses a boiler flue gas waste heat conversion system, which comprises a box body, a heat exchange device, a water inlet pipeline, a water outlet pipeline and a heat preservation water tank, wherein the box body is provided with a smoke inlet and a smoke outlet, the smoke inlet is communicated with a smoke outlet of a boiler, the heat exchange device is arranged in the box body, the heat exchange device is provided with a water inlet and a water outlet, the water inlet pipeline is communicated with the water inlet, one end of the water outlet pipeline is communicated with the water outlet, the other end of the water outlet pipeline is communicated with the heat preservation water tank, the water outlet pipeline is also provided with a first hot water circulating pump for draining water speed, cold water is changed into hot water through the heat exchange device by means of the flue gas waste heat generated by the boiler in the box body, the hot water enters the water outlet pipeline from the water outlet, the hot water is continuously drained into the heat preservation water tank for people to, the high-temperature flue gas of the boiler is utilized to the maximum extent, and the effects of energy conservation and emission reduction are achieved.
Description
Technical Field
The utility model relates to a boiler technical field especially relates to a boiler flue gas waste heat conversion system.
Background
At present, a steam boiler, an industrial boiler such as a heat conduction oil boiler and the like use a large amount of energy such as coal, biomass (wood chips) and natural gas as combustion raw materials, a large amount of smoke can be generated in the combustion process of the industrial boiler, residual heat after combustion exists in the smoke, and a large amount of high-temperature smoke generated by the existing industrial boiler every day is simply treated by a coal economizer (the coal economizer is a device which is arranged at the lower part of a tail flue of the boiler and used for recovering the residual heat of discharged smoke) and then is directly discharged into the atmosphere, so that not only can a large amount of resource waste be caused, but also huge waste is caused for enterprises.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model aims to provide a boiler flue gas waste heat conversion system that can make full use of waste heat to the maximize utilizes the high temperature flue gas of boiler, reaches energy saving and emission reduction's effect.
The purpose of the utility model is realized by adopting the following technical scheme:
a boiler flue gas waste heat conversion system comprises a box body, a heat exchange device, a water inlet pipeline, a water outlet pipeline and a heat preservation water tank, wherein the box body is provided with a smoke inlet and a smoke outlet, the smoke inlet is communicated with a smoke outlet of a boiler in a connected mode, the heat exchange device is arranged in the box body, flue gas of the boiler enters the box body from the smoke inlet and is discharged from the smoke outlet after the heat exchange device is heated, the heat exchange device is provided with a water inlet and a water outlet, the water inlet pipeline is communicated with the water inlet in a connected mode, one end of the water outlet pipeline is communicated with the water outlet in a connected mode, the other end of the water outlet pipeline is communicated with the heat preservation water tank in a connected mode, the water outlet pipeline is further provided with a first hot water circulating pump for guiding the water speed, and cold water is changed into hot water through the heat exchange, hot water enters the water outlet pipeline from the water outlet, and is continuously guided into the heat preservation water tank by the aid of the first hot water circulating pump, and the heat preservation water tank is further provided with a faucet for discharging the hot water.
Furthermore, the water outlet pipeline is also connected with a first pipeline and communicated with the first pipeline, and the first pipeline is provided with a second hot water circulating pump.
Furthermore, a first check valve is installed at one end close to the first hot water circulating pump, a first stop valve is installed at the other end close to the first hot water circulating pump, the first check valve is located at one end close to the box body, and the first stop valve is located at one end close to the heat preservation water tank.
Further, the first pipeline is close to the second check valve is still installed to the one end of box, the first pipeline is close to holding water box's one end is installed the second stop valve, just the second hot water circulating pump be located the second check valve with between the second stop valve.
Furthermore, a valve for closing tap water is also installed on the water inlet pipeline.
Furthermore, a first thermometer is further arranged at the position of the smoke inlet and communicated with the interior of the box body.
Furthermore, a second thermometer is arranged at the position of the smoke outlet and communicated with the interior of the box body.
Furthermore, the positions of the water inlet and the water outlet are respectively provided with a sealing ring.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the heat exchange device is heated by the waste heat of the flue gas generated by the boiler, cold water is changed into hot water and enters the water outlet pipeline, and then the hot water is continuously drained into the heat preservation water tank by the hot water circulating pump for people to use, so that the high-temperature flue gas of the boiler is utilized to the maximum extent, and the effects of energy conservation and emission reduction are achieved; the boiler flue gas waste heat conversion system can be applied to steam boilers, heat conduction oil boilers, gas boilers and the like, and is wide in application range.
Drawings
Fig. 1 is a first schematic structural diagram of the present invention;
fig. 2 is a schematic structural diagram of the present invention.
In the figure: 1. a box body; 10. a smoke inlet; 100. a first thermometer; 11. a smoke outlet; 110. a second thermometer; 2. a heat exchange device; 20. s-shaped reciprocating back water channel; 200. a water inlet; 201. a water outlet; 3. a water inlet pipe; 30. a valve; 31. a cold water circulation pump; 4. a water outlet pipeline; 40. a first hot water circulation pump; 41. A first shut-off valve; 42. a first check valve; 5. a heat preservation water tank; 50. a faucet; 6. a first conduit; 60. A second hot water circulating pump; 61. a second stop valve; 62. a second check valve; 7. a second conduit.
Detailed Description
In the following, the present invention is described with priority in conjunction with the accompanying drawings and the detailed description, and it should be noted that, in the premise of no conflict, the embodiments or technical features described below may be arbitrarily combined to form a new embodiment.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The implementation mode is as follows:
the first embodiment is as follows: as shown in fig. 1, the utility model discloses a boiler flue gas waste heat conversion system, this boiler flue gas waste heat conversion system include box 1, heat transfer device 2, inlet channel 3, outlet conduit 4 and holding water box 5, box 1 is provided with into mouth 10 and outlet flue 11, and this box 1 is installed at the afterbody of boiler, connects through the steel sheet of boiler flue. The smoke inlet 10 is communicated with a smoke outlet of the boiler, the heat exchange device 2 is arranged in the box body 1, smoke of the boiler enters the box body 1 from the smoke inlet 10, and the smoke is discharged from the smoke outlet 11 after the heat exchange device 2 is heated. The heat exchange device 2 is provided with a water inlet 200 and a water outlet 201, the water inlet pipeline 3 is communicated with the water inlet 200, one end of the water outlet pipeline 4 is communicated with the water outlet 201, and the other end of the water outlet pipeline 4 is communicated with the heat preservation water tank 5. Cold water enters the heat exchange device 2 from the water inlet pipe 3 through the water inlet 200, wherein the heat exchange device 2 comprises a furnace plate, and an S-shaped reciprocating back water channel 20 is arranged in the furnace plate, so that it can be understood that one end of the S-shaped reciprocating back water channel 20 is the water inlet 200, and the other end is the water outlet 201. That is, cold water enters the S-shaped reciprocating curved water return channel 20 from the water inlet pipe 3 through the water inlet 200, when the flue gas of the boiler enters the box body 1, the waste heat of the flue gas heats the furnace fins (the temperature of the waste heat of the flue gas is as high as about 250 ℃) so as to heat the cold water of the S-shaped reciprocating curved water return channel 20, and the S-shaped water return channel increases the flow of water in the water channel, prolongs the heating time of the cold water, and enables the cold water to fully absorb heat.
In conclusion, the boiler flue gas waste heat conversion system heats the heat exchange device 2 by using the flue gas waste heat generated by the boiler, changes cold water into hot water and enters the water outlet pipeline 4, and then utilizes the hot water circulating pump to continuously guide the hot water into the heat preservation water tank 5 for people to use, so that the high-temperature flue gas of the boiler is utilized to the maximum extent, and the effects of energy conservation and emission reduction are achieved; the boiler flue gas waste heat conversion system can be applied to steam boilers, heat conduction oil boilers, gas boilers and the like, and is wide in application range.
Preferably, the water outlet pipe 4 is further connected with a first pipe 6 and communicated with the first pipe 6, the first pipe 6 is provided with a second hot water circulating pump 60, and the second hot water circulating pump 60 provides mechanical equipment with stable pressure and flow rate for the heat carrier. Through being provided with second hot water circulating pump 60 in order to prevent that first hot water circulating pump 40 from under the circumstances of damaging, still can guarantee this boiler flue gas waste heat conversion system and continue to go on, thereby prolong the utility model discloses a life. Of course, since the second hot water circulation pump 60 serves as a backup circulation pump, the second hot water circulation pump 60 is not operated in a state where the first hot water circulation pump 40 is operated.
Preferably, a first check valve 42 is installed near one end of the first hot water circulation pump 40, a first cut-off valve 41 is installed near the other end of the first hot water circulation pump 40, the first check valve 42 is located near one end of the tank 1, and the first cut-off valve 41 is located near one end of the hot water tank 5. In the case where the first hot water circulation pump 40 is damaged, the first check valve 42 is provided to prevent the hot water in the outlet pipe 4 from flowing backward, and the first cutoff valve 41 is provided to prevent the hot water in the outlet pipe 4 from continuing to flow forward, so as to facilitate maintenance of the first hot water circulation pump 40. Of course, in the operating state of the first hot water circulating pump 40, the first check valve 42 and the first stop valve 41 are in the fully open state to ensure the normal operation of the boiler flue gas waste heat conversion system.
Further, first pipeline 6 is close to the second check valve 62 is still installed to the one end of box 1, first pipeline 6 is close to the second stop valve 61 is installed to the one end of holding water box 5, just second hot water circulating pump 60 is located the second check valve 62 with between the second stop valve 61. Under the condition that the first hot water circulating pump 40 is damaged, the second hot water circulating pump 60 is started, and under the working state of the second hot water circulating pump 60, the second check valve 62 and the second stop valve 61 are in a fully open state, so that the normal operation of the boiler flue gas waste heat conversion system is ensured; in the case where the second hot water circulation pump 60 is damaged, the second check valve 62 is in a fully closed state to prevent the hot water in the outlet pipe 4 from flowing backward, and the second stop valve 61 is in a fully closed state to prevent the hot water in the outlet pipe 4 from continuing to flow forward for the maintenance of the second hot water circulation pump 60.
Preferably, a valve 30 for closing the tap water is further installed on the water inlet pipe 3. Tap water enters the heat exchange device 2 from the water inlet pipe 3 and can be closed through the arranged valve 30 under the condition that water does not need to enter. In order to ensure the position tightness of the water inlet 200 and the water outlet 201, further, sealing rings (not shown) are respectively disposed at the positions of the water inlet 200 and the water outlet 201, so as to ensure the position tightness of the water inlet 200 and the water outlet 201 by the sealing rings, thereby preventing water leakage.
Preferably, the position of the smoke inlet 10 is further provided with a first thermometer 100, and the first thermometer 100 is communicated with the inside of the box body 1, and the temperature of the smoke of the boiler entering the position of the smoke inlet 10 can be monitored in real time through the first thermometer 100. Further, a second thermometer 110 is disposed at the position of the smoke outlet 11, and the second thermometer 110 is communicated with the inside of the box 1, so that the temperature of the smoke discharged from the position of the smoke outlet 11 after the heat exchange device 2 is heated by the smoke of the boiler can be monitored in real time through the second thermometer 110, and the temperature of the smoke is monitored in real time.
Example two:
as shown in fig. 2, the difference between this embodiment and the first embodiment is that one end of the water inlet pipe 3 is connected and communicated with the water inlet 200 of the heat exchanging device 2, and the other end is connected and communicated with the hot water tank 5, of course, the hot water tank 5 is also connected and communicated with a second pipe 7 for connecting with tap water, and the second pipe 7 is also connected with a valve 30 for closing the tap water, so as to ensure the continuous circulation of the boiler flue gas waste heat conversion system. A cold water circulation pump 31 is arranged on the water inlet pipe 3 for guiding the flow rate of the cold water, thereby ensuring that the cold water is continuously guided into the S-shaped water return channel of the heat exchanger 2.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (8)
1. The utility model provides a boiler flue gas waste heat conversion system which characterized in that: the boiler flue gas heat exchanger comprises a box body, a heat exchange device, a water inlet pipeline, a water outlet pipeline and a heat preservation water tank, wherein the box body is provided with a smoke inlet and a smoke outlet, the smoke inlet is communicated with a flue gas outlet of a boiler, the heat exchange device is arranged in the box body, flue gas of the boiler enters the box body from the smoke inlet and is discharged from the smoke outlet after the heat exchange device is heated, the heat exchange device is provided with a water inlet and a water outlet, the water inlet pipeline is communicated with the water inlet, one end of the water outlet pipeline is communicated with the water outlet, the other end of the water outlet pipeline is communicated with the heat preservation water tank, the water outlet pipeline is also provided with a first hot water circulating pump for guiding the water speed, cold water is changed into hot water through the heat exchange device by means of the waste heat of the flue gas generated by the boiler in the box body, and, by means of the first hot water circulation pump, hot water is constantly conducted into the holding water tank, which is also provided with a tap for discharging hot water.
2. The boiler flue gas waste heat conversion system of claim 1, wherein: the water outlet pipeline is also connected with a first pipeline and communicated with the first pipeline, and the first pipeline is provided with a second hot water circulating pump.
3. The boiler flue gas waste heat conversion system of claim 1, wherein: a first check valve is installed at one end close to the first hot water circulating pump, a first stop valve is installed at the other end close to the first hot water circulating pump, the first check valve is located at one end close to the box body, and the first stop valve is located at one end close to the heat preservation water tank.
4. The boiler flue gas waste heat conversion system of claim 2, wherein: the first pipeline is close to the second check valve is still installed to the one end of box, the first pipeline is close to the second stop valve is installed to holding water tank's one end, just the second hot water circulating pump be located the second check valve with between the second stop valve.
5. The boiler flue gas waste heat conversion system of claim 1, wherein: and the water inlet pipeline is also provided with a valve for closing tap water.
6. The boiler flue gas waste heat conversion system of claim 1, wherein: the smoke inlet is also provided with a first thermometer, and the first thermometer is communicated with the interior of the box body.
7. The boiler flue gas waste heat conversion system of claim 1, wherein: and a second thermometer is arranged at the position of the smoke outlet and is communicated with the inside of the box body.
8. The boiler flue gas waste heat conversion system of claim 1, wherein: and sealing rings are respectively arranged at the water inlet and the water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921149229.6U CN210979896U (en) | 2019-07-19 | 2019-07-19 | Boiler flue gas waste heat conversion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921149229.6U CN210979896U (en) | 2019-07-19 | 2019-07-19 | Boiler flue gas waste heat conversion system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210979896U true CN210979896U (en) | 2020-07-10 |
Family
ID=71446793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921149229.6U Active CN210979896U (en) | 2019-07-19 | 2019-07-19 | Boiler flue gas waste heat conversion system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210979896U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879935A (en) * | 2021-01-27 | 2021-06-01 | 北京北燃供热有限公司 | Boiler flue gas waste heat recovery-based optimal control method and system |
-
2019
- 2019-07-19 CN CN201921149229.6U patent/CN210979896U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879935A (en) * | 2021-01-27 | 2021-06-01 | 北京北燃供热有限公司 | Boiler flue gas waste heat recovery-based optimal control method and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104913294A (en) | Waste heat recovery system for smoke discharging of thermal power plant boiler | |
| CN210979896U (en) | Boiler flue gas waste heat conversion system | |
| CN103808200A (en) | Automatic regulating system for controlling temperature of working media of heat exchanger | |
| CN103759459B (en) | Fume hot-water single-double effect compound type lithium bromide absorption type refrigeration unit | |
| CN208154872U (en) | Hot water fall connect direct combustion dual effect type lithium bromide absorption type heat pump unit | |
| CN202403257U (en) | Closed circulating coal economizer | |
| CN204901735U (en) | Heat exchanger boiler waste heat utilization economizer | |
| CN214745984U (en) | Heating system with secondary low-temperature economizer | |
| CN107345656A (en) | A kind of steam raising plant using residual heat from boiler fume | |
| CN103759461B (en) | With the fume hot-water type lithium bromide absorption refrigerating set of smoke solution heat exchanger | |
| CN113983443A (en) | Gas boiler waste heat recovery utilizes system based on high temperature steam heat pump | |
| CN203500841U (en) | Air-temperature type natural gas gasifying device | |
| CN202092110U (en) | Waste heat recovery device for boiler and the boiler with the same | |
| CN203869074U (en) | Device for recovering waste heat of gas boiler | |
| CN103759460B (en) | Two-period form fume hot-water single-double effect compound type lithium bromide absorption type handpiece Water Chilling Units | |
| CN206739251U (en) | Industrial Boiler afterheat generating system | |
| CN113739125A (en) | Ocean drilling platform diesel engine waste heat recovery system with heat accumulation function | |
| CN204534541U (en) | A kind of residual heat from boiler fume utilizes system | |
| CN203431900U (en) | Smoke cooling and air heating device of power station boiler | |
| CN107676841B (en) | Flue gas waste heat recovery method for heating heat supply network water with different pressures | |
| CN114151778B (en) | Boiler structure without stopping furnace during overhaul and furnace stopping switching method | |
| CN204201871U (en) | A kind of boiler exhaust gas residual neat recovering system | |
| CN210772276U (en) | Zero leakage system of flue butterfly valve | |
| CN204648205U (en) | Steam power plant's back-end ductwork is without pump self-loopa two-way water feeding high/low temperature associating heating system | |
| CN204514103U (en) | A kind of closed condensate water recovery device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |