CN208296656U - A kind of flue gas waste heat power generation device and fume afterheat system - Google Patents
A kind of flue gas waste heat power generation device and fume afterheat system Download PDFInfo
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- CN208296656U CN208296656U CN201820718754.4U CN201820718754U CN208296656U CN 208296656 U CN208296656 U CN 208296656U CN 201820718754 U CN201820718754 U CN 201820718754U CN 208296656 U CN208296656 U CN 208296656U
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Abstract
The utility model relates to field, a kind of flue gas waste heat power generation device and fume afterheat system are disclosed, wherein flue gas waste heat power generation device includes: heat-exchanger rig, heat collector, thermoelectric generator and radiator；Equipped at least one for the runner of heat transfer medium flows in heat-exchanger rig；Heat collector is located at the top of heat-exchanger rig, and the side of thermoelectric generator is arranged in heat collector；The upside of heat collector is equipped at least one first opening, and downside is equipped at least one second opening, and the first opening is corresponded with the second opening and is connected to；The outlet of runner is connected with the first opening, and import is connected with the second opening.Flue gas waste heat power generation device provided by the utility model is not required to extra power consumption while improving flue gas waste heat recovery efficiency；I.e. the power generator can realize efficient, flexible, reliable, low consumption operation.
Description
Technical field
The utility model relates to flue gas waste heat recovery fields, more than a kind of flue gas waste heat power generation device and flue gas
Hot systems.
Background technique
The high-temperature flue gas gone out from various fire grates often takes away the 20~50% of stove heating load, and flue gas is general energy consumption equipment
Waste the main path of energy.Fume afterheat is recycled, is one of the approach for improving capacity usage ratio.
There are many recycling approach of waste heat.It is, in general, that comprehensive utilization waste heat is best, followed by directly utilize, again
It is indirect utilization (such as cogeneration).Comprehensive utilization is exactly the quality according to waste heat, presses ladder according to temperature sequence difference
Utilize, quality it is high can be used for production technology or cogeneration；Medium (120 degree of -160 degree) can absorb system using ammonium hydroxide
Cool equipment produces -30 degree to 5 degree of cooling capacity, for air-conditioning or industry；Low temperature can be used to heat or utilize absorption type heat
The quantity or temperature for pumping to improve heat are for the use that produces and live.
Although these approach a degree of can improve the utilization rate of gas energy, current waste heat recycles project,
After operation, will cause cannot it is enough recycle this process generate waste heat, waste heat effective rate of utilization it is not high, influence technique production,
The thermal energy of recycling devalues, the thermal energy no user of recycling utilizes, waste heat recycling fluctuation of service, seasonal unbalanced supply-demand, recycling
The defects of resource loses more than gain, or even cannot go into operation, cause the significant wastage of money and energy.In view of the defect of existing recovery method,
It is extremely urgent to develop efficient, flexible flue gas waste heat recovery system.
Utility model content
(1) technical problems to be solved
The purpose of the utility model is to provide a kind of flue gas waste heat power generation device and fume afterheat systems, it is intended at least solve
One of technical problems existing in the prior art or related technologies.
(2) technical solution
In order to solve the above-mentioned technical problem, the utility model provides a kind of flue gas waste heat power generation device, comprising: heat exchange dress
It sets, heat collector, thermoelectric generator and radiator；Equipped at least one for the stream of heat transfer medium flows in the heat-exchanger rig
Fume afterheat is passed to the heat-conducting medium by the runner by road, the heat-exchanger rig；The heat collector is located at described
The top of heat-exchanger rig, and the side of the thermoelectric generator is arranged in the heat collector；It is set on the upside of the heat collector
There is at least one first opening, downside is equipped at least one second opening, and first opening and second opening one are a pair of
It should be connected to；The outlet of the runner is connected with the first opening of the heat collector, and import is opened with the second of the heat collector
Mouth is connected.
Wherein, the flue gas waste heat power generation device, further includes: radiator；The radiator is arranged in the temperature
The other side of poor electric organ, and the side of the thermoelectric generator is opposite with the other side.
Wherein, the heat collector is collecting plate；The collecting plate is hollow structure.
Wherein, the heat-exchanger rig is pipe heat exchanger.
Wherein, the radiator includes: multiple fins；The fin is arranged equally spaced at dissipating for the radiator
On hot face.
Wherein, the fin is wave-shaped fins or strip fin.
Wherein, the thermoelectric generator be grade heat thermoelectric generator, high temperature thermoelectric generator, medium temperature thermoelectric generator or
Low temperature thermoelectric generator.
Wherein, the heat-conducting medium is liquid metal.
Wherein, the liquid metal is gallium, sodium, potassium, mercury, gallium-indium alloy, gallium-indium-tin alloy or Na-K alloy.
The utility model also provides a kind of fume afterheat system, comprising: above-mentioned flue gas waste heat power generation device.
(3) beneficial effect
A kind of flue gas waste heat power generation device provided by the utility model and fume afterheat system, by the way that heat collector to be arranged
In the top of heat-exchanger rig, and by the runner exit for the heat-conducting medium that circulates in heat-exchanger rig, opened with first on the upside of heat collector
Mouth connection；The second open communication on the downside of flow channel entry point and heat collector so that can the siphonic effect of heat-conducting medium filled in heat exchange
It sets and is realized between heat collector from driving circulation；Then when using the power generator Mist heat recovering, more than raising flue gas
While heat recovery efficiency, it is not required to extra power consumption；I.e. the power generator can realize efficient, flexible, reliable, low consumption operation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of a preferred embodiment of the utility model flue gas waste heat power generation device；
Fig. 2 is the structural schematic diagram of another preferred embodiment of the utility model flue gas waste heat power generation device；
Fig. 3 is the structural schematic diagram of the longitudinal section of the heat collector in flue gas waste heat power generation device shown in fig. 1 or fig. 2；
Fig. 4 is the structural representation of the longitudinal section of the thermoelectric generator in flue gas waste heat power generation device shown in fig. 1 or fig. 2
Figure；
Fig. 5 is the structural schematic diagram of the longitudinal section of the radiator in flue gas waste heat power generation device shown in Fig. 2；
Fig. 6 is the structural schematic diagram of another fin shape in radiator shown in fig. 5；
In figure, 1- flue；2- heat-exchanger rig；3- pipeline；4- heat collector；5- thermoelectric generator；6- radiator.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Example is not intended to limit the scope of the present invention for illustrating the utility model.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Embodiment 1:
Fig. 1 shows a preferred embodiment of the utility model flue gas waste heat power generation device, as shown in Figure 1, the flue gas
Device for generating power by waste heat, comprising: heat-exchanger rig 2, heat collector 4, thermoelectric generator 5 and radiator 6；It is equipped in heat-exchanger rig 2
, for the runner of heat transfer medium flows, fume afterheat passes to heat-conducting medium by runner by heat-exchanger rig 2 at least one；Collect hot charging
4 tops for being located at heat-exchanger rig 2 are set, and the side of thermoelectric generator 5 is arranged in heat collector 4；The upside of heat collector 4 is equipped with
At least one first opening, downside are equipped at least one second opening, and the first opening is corresponded with the second opening and is connected to；Runner
The first opening of outlet and heat collector 4 be connected, import is open with the second of heat collector 4 to be connected.
It specifically, is then to change for the runner of heat transfer medium flows for example, including at least one heat exchanger tube in heat-exchanger rig 2
The pipeline of heat pipe；Will be by the way that flue gas be contacted with heat exchanger tube, and then realize the heat exchange between flue gas and heat-conducting medium, i.e., by flue gas
Waste heat passes to heat-conducting medium, so that heat-conducting medium is heated.It can also be by the way that multiple heat exchange be arranged in heat-exchanger rig 2
Pipe improves the heat exchange efficiency of heat-conducting medium and fume afterheat, and then improves the utilization rate of fume afterheat.Certainly, heat-exchanger rig 2
It can also be other forms, for example, heat-exchanger rig 2 is plate heat exchanger etc., as long as can pass the fume afterheat in flue 1
Pass heat-conducting medium.
The upside of heat collector 4 is equipped at least one first opening, and downside is equipped at least one second opening, and first opens
Mouth is corresponded with the second opening and is connected to, that is, the runner for the heat transfer medium flows for Gong being heated is equipped on heat collector 4.And
Heat collector 4 is located at the top of heat-exchanger rig 2, and the outlet of the runner in heat-exchanger rig 2 is connected with the first opening, runner into
Mouth is connected with the second opening, for example, the quantity of the quantity of runner, the quantity of the first opening and the second opening corresponds；And it flows
The outlet in road is by pipeline 3 and the first open communication, and the import of runner is also by pipeline 3 and the second open communication, for example, pipeline
3 material is copper, stainless steel, titanium, gold, silver, diamond, graphite or ceramics；Then heat-exchanger rig 2 and heat collector 4, which are constituted, recycles
Circuit.Certainly, the quantity of runner can also be more or less than the first opening and the second opening quantity, as long as the outlet of runner with
All first openings are connected to, and the import of runner is connected to all second openings, i.e. guarantee heat-conducting medium can change
It is circulated between thermal 2 and heat collector 4.
Then in heat-exchanger rig 2 by heat-conducting medium that fume afterheat heats since expanded by heating, density become smaller, then be heated
Heat-conducting medium will rise to the first opening of 4 upside of heat collector along pipeline 3；And after acquiring heat by heat collector 4
Heat-conducting medium then flows to the second opening of 4 downside of heat collector since temperature declines, density becomes larger, and returns along pipeline 3
It flow at the tunnel inlets of heat-exchanger rig 2.Following from driving for heat-conducting medium then may be implemented by the siphonic effect of heat-conducting medium
Ring, i.e. heat-conducting medium pass sequentially through: the runner exit of heat-exchanger rig 2, the first opening of heat collector 4, heat collector 4 second
The tunnel inlets of opening and heat-exchanger rig 2；And heat-conducting medium does not need additional power consumption during this is circulated.
After heat collector 4 acquires the heat of heat-conducting medium, supply temperature difference electricity generation device generates electricity, that is, heat collector 4
By the heat transfer of acquisition to the hot end of temperature difference electricity generation device, so that the hot end of thermoelectric monomer and cold end in thermoelectric generator 5
Between establish the temperature difference so that thermoelectric generator 5 generates electricity, that is, realize and convert heat into electric energy.
In this embodiment, it by the way that heat collector 4 to be arranged in the top of heat-exchanger rig 2, and will circulate in heat-exchanger rig 2
The runner exit of heat-conducting medium, the first open communication with 4 upside of heat collector；The of flow channel entry point and the downside of heat collector 4
Two open communications so that can heat-conducting medium siphonic effect realized between heat-exchanger rig 2 and heat collector 4 from driving circulation；
Then when using the power generator Mist heat recovering, while improving flue gas waste heat recovery efficiency, it is not required to extra power consumption；I.e.
The power generator can realize efficient, flexible, reliable, low consumption operation.
Further, heat collector 4 is collecting plate；Collecting plate is hollow structure, as shown in Figure 3.For example, the material of collecting plate
Matter is copper, stainless steel, titanium, gold or silver.Heat collector 4 uses collecting plate, and the collecting plate is hollow structure, can be in certain journey
Reduce the weight of heat collector 4 on degree, then collecting plate and thermoelectric generator 5 can relatively be stably installed at the upper of heat-exchanger rig 2
Side；Improve the stability of the power generator.
Further, heat-exchanger rig 2 is pipe heat exchanger.For example, the pipe heat exchanger is U-shaped pipe heat exchanger or fixation
Tube-sheet heat exchanger etc..For example, the heat-exchanger rig 2 is fixed tube-sheet exchanger, for example, heat exchanger tube is copper pipe；Correspondingly, collect
Copper can also be used in the material of hot plate, and connects the fixed tube-sheet exchanger and collecting plate using copper pipeline 3.Then band is had a surplus
The flue gas of heat is passed through in the shell of the fixed tube-sheet exchanger, and heat-conducting medium is passed into the heat exchange of fixed tube-sheet exchanger
In pipe, the heat exchange between flue gas and heat-conducting medium with waste heat can be realized.Certainly, the heat exchanger tube of the fixed tube-sheet exchanger
It can be also stainless steel tube etc.；Correspondingly, rust steel can also be used in the material of collecting plate, and connects this using stainless steel pipes 3 and fix
Tube-sheet heat exchanger and collecting plate.In addition, also fin can be set on the heat exchanger tube of the pipe heat exchanger, to increase changing for heat exchanger tube
Heat area, and then the heat exchange efficiency of heat exchanger is improved, so that the utilization rate of fume afterheat can be improved.Certainly, as long as the heat exchange fills
Heat-conducting medium can be passed to for the fume afterheat in flue 1 by setting 2, which can be also other heat exchangers.
Further, as shown in figure 4, the thermoelectric generator 5 be grade heat thermoelectric generator 5, high temperature thermoelectric generator 5,
Medium temperature thermoelectric generator 5 or low temperature thermoelectric generator 5.Wherein, grade heat thermoelectric generator 5, by various forms of low temperature heat energies
(including waste heat, waste heat) is directly changed into the thermoelectric generator 5 of electric energy.High temperature thermoelectric generator 5, hot face operating temperature are general
At 700 DEG C or more, the typical temperature difference electric material used is sige alloy (SiGe).Medium temperature thermoelectric generator 5, hot face work temperature
For degree generally at 400 DEG C~500 DEG C, the typical temperature difference electric material used is lead telluride (PbTe).Low temperature temperature difference electric appliance, hot face work
Make temperature generally at 400 DEG C hereinafter, the typical temperature difference electric material used is bismuth telluride (Bi2Te3).
Further, heat-conducting medium is liquid metal.Liquid metal room temperature is liquid, has low melting point higher boiling, and height is led
The features such as heating rate, mobility is the optimal selection of heat-conducting medium in power generator, compared to other heat-conducting mediums, liquid metal
Heat transfer efficiency can be greatly improved.Preferably, liquid metal is that gallium, sodium, potassium, mercury, gallium-indium alloy, gallium-indium-tin alloy or sodium potassium close
Gold.In addition, the liquid metal can be also several mixing in gallium, sodium, potassium, mercury, gallium-indium alloy, gallium-indium-tin alloy or Na-K alloy
It forms.Can also be different according to the temperature of flue gas, select liquid metal with different melting points as heat-conducting medium, that is, liquid metal
The temperature of fusing point and flue gas is close, fume afterheat can be enabled to change the form of liquid metal faster in this way, for example, liquid
State metal becomes liquid from solid-state, so that liquid metal can rise to faster in heat collector 4.Correspondingly, thermal-arrest
The material of plate selection can not guarantee its service life by liquid metal corrosion, and stainless steel material meets the requirements；The material of heat exchanger
Its service life can not be guaranteed by liquid metal corrosion, stainless steel material meets the requirements.
Embodiment 2:
The present embodiment is substantially the same manner as Example 1, brief for description, during the description of the present embodiment, no longer
Technical characteristic same as Example 1 is described, only illustrates the present embodiment difference from Example 1:
As shown in Fig. 2, the flue gas waste heat power generation device further include: radiator 6；Radiator 6 is arranged in thermo-electric generation
The other side of device 5, and the side of thermoelectric generator 5 is opposite with the other side.
Specifically, radiator 6 is set in flue gas waste heat power generation device, and the radiator 6 is arranged in thermo-electric generation
The other side of device 5, that is, the radiator 6 is oppositely arranged with heat collector 4；Then heat collector 4, thermoelectric generator 5 and heat dissipation dress
Set 6 tops for being each provided at heat-exchanger rig 2.And by the way that radiator 6 is arranged in the other side of thermoelectric generator 5, temperature can be increased
The temperature difference of poor 5 two sides of electric organ, and then the generating efficiency of thermoelectric generator 5 is improved, to improve the utilization rate of fume afterheat.
Further, radiator 6 includes: multiple fins；Fin is arranged equally spaced at the radiating surface of radiator 6.
For example, the material of fin is aluminium, copper or stainless steel radiating fin.For example, multiple fins of radiator 6 are strip fin,
And fin laterally, is equidistantly located at the radiating surface of radiator 6, as shown in Figure 5.Then radiator 6 can be temperature by fin
Poor electric organ 5 radiates, so that the temperature difference between the hot end and cold end of thermoelectric generator 5 increases, and then increases the temperature difference
The generating efficiency of electric organ 5.In addition, fin can also be other forms, can only the fin be able to carry out heat dissipation.
Preferably, fin is wave-shaped fins or strip fin.For example, fin is wave-shaped fins, as shown in fig. 6, then multiple
The equidistant radiating surface that radiator 6 is set of wave-shaped fins, that is, the wave crests of each wave-shaped fins and the wave crest of adjacent fins it
Between keep certain distance；And each wave-shaped fins trough and adjacent fins trough between keep certain distance, this kind of shape
The fin of formula can increase the heat dissipation area of radiator 6, and then improve the radiating efficiency of radiator 6, so that the temperature difference
The temperature difference between the hot end and cold end of electric organ 5 further increases, to increase the generating efficiency of thermoelectric generator 5 again.
The utility model also provides a kind of fume afterheat system, comprising: above-mentioned flue gas waste heat power generation device.That is, the hair
Electric installation can be the power generator in embodiment 1, and the power generator in example 2 also can be implemented.The fume afterheat system has
Effect, power generator bring effect is identical, herein no longer tool state.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (10)
1. a kind of flue gas waste heat power generation device characterized by comprising heat-exchanger rig, heat collector, thermoelectric generator and heat dissipation
Device；
Equipped at least one for the runner of heat transfer medium flows in the heat-exchanger rig, the heat-exchanger rig will by the runner
Fume afterheat passes to the heat-conducting medium；
The heat collector is located at the top of the heat-exchanger rig, and the one of the thermoelectric generator is arranged in the heat collector
Side；
The upside of the heat collector be equipped at least one first opening, downside be equipped at least one second opening, described first
Opening is corresponded with second opening and is connected to；
The outlet of the runner is connected with the first opening of the heat collector, the second opening phase of import and the heat collector
Even.
2. flue gas waste heat power generation device according to claim 1, which is characterized in that further include: radiator；The heat dissipation
The other side of the thermoelectric generator is arranged in device, and the side of the thermoelectric generator is opposite with the other side.
3. flue gas waste heat power generation device according to claim 1, which is characterized in that the heat collector is collecting plate；Institute
Stating collecting plate is hollow structure.
4. flue gas waste heat power generation device according to claim 1, which is characterized in that the heat-exchanger rig is pipe type heat transfer
Device.
5. flue gas waste heat power generation device according to claim 2, which is characterized in that the radiator includes: multiple wings
Piece；The fin is arranged equally spaced on the radiating surface of the radiator.
6. flue gas waste heat power generation device according to claim 5, which is characterized in that the fin is wave-shaped fins or bar shaped
Fin.
7. flue gas waste heat power generation device according to claim 1, which is characterized in that the thermoelectric generator is grade heat temperature
Poor electric organ, high temperature thermoelectric generator, medium temperature thermoelectric generator or low temperature thermoelectric generator.
8. flue gas waste heat power generation device according to claim 1-7, which is characterized in that the heat-conducting medium is liquid
State metal.
9. flue gas waste heat power generation device according to claim 8, which is characterized in that the liquid metal be gallium, sodium, potassium,
Mercury, gallium-indium alloy, gallium-indium-tin alloy or Na-K alloy.
10. a kind of fume afterheat system characterized by comprising the described in any item fume afterheat power generation dresses of claim 1-9
It sets.
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| CN201820718754.4U CN208296656U (en) | 2018-05-15 | 2018-05-15 | A kind of flue gas waste heat power generation device and fume afterheat system |
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| CN201820718754.4U CN208296656U (en) | 2018-05-15 | 2018-05-15 | A kind of flue gas waste heat power generation device and fume afterheat system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108548439A (en) * | 2018-05-15 | 2018-09-18 | 云南靖创液态金属热控技术研发有限公司 | A kind of flue gas waste heat power generation device and fume afterheat system |
-
2018
- 2018-05-15 CN CN201820718754.4U patent/CN208296656U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108548439A (en) * | 2018-05-15 | 2018-09-18 | 云南靖创液态金属热控技术研发有限公司 | A kind of flue gas waste heat power generation device and fume afterheat system |
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