CN205945554U - Temperature difference power generation devices of heat energy cascade utilization type - Google Patents
Temperature difference power generation devices of heat energy cascade utilization type Download PDFInfo
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- CN205945554U CN205945554U CN201620888629.9U CN201620888629U CN205945554U CN 205945554 U CN205945554 U CN 205945554U CN 201620888629 U CN201620888629 U CN 201620888629U CN 205945554 U CN205945554 U CN 205945554U
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Abstract
The utility model discloses a temperature difference power generation devices of heat energy cascade utilization type, including combustion chamber, combustor and flue, the outer wall in the combustion chamber is provided with high temperature thermal power generation module, is provided with medium temperature thermal power generation module at the flue outer wall, and high temperature thermal power generation module's the outside is provided with cooling jacket, cooling jacket's export and cooling water re -heater intercommunication, and the export of cooling water re -heater is through the hot junction intercommunication of condenser tube with low temperature thermal power generation module. The utility model discloses it has following advantage to compare prior art: the utility model discloses it forms the cascade utilization to the heat source at the high -temperature region in same system, well warm area and low warm area to arrange the module of three kinds of differences of high, medium and low temperature to make the energy utilization and the efficiency of whole thermoelectric generation system obtain great promotion.
Description
Technical field
This utility model is related to heat energy power-generating technical field, and the efficient temperature-difference of more particularly, to a kind of Multi-class propagation generates electricity
Device.
Background technology
Thermoelectric generation refers to metal or quasiconductor when two ends are heated inequality, and carrier therein migrates,
Thus forming electric potential difference at its two ends.There is the thermoelectric material of thermo-electric generation performance, clamped by module cold end and module hot junction,
Thus constituting temperature-difference power generation module.When module hot-side temperature is higher than module cold end, temperature-difference power generation module produces electric energy, its
The size of electric energy is often directly proportional to the temperature difference at the cold and hot two ends of module.
Thermoelectric generation is usually used in the temperature difference heat energy utilization in various environment, but the thermo-electric conversion of temperature-difference power generation module effect
Rate is relatively low, and different types of temperature-difference power generation module can only play its optimal power generation performance, example in a narrower temperature range
As high temperature temperature-difference power generation module, in 700-1000 DEG C of interval, work efficiency is higher, and middle temperature temperature-difference power generation module is at 350-500 DEG C
In interval, power generation performance is higher, and power generation performance below 100 DEG C for the low temperature temperature-difference power generation module is higher.Therefore using a certain kind
The generating efficiency of the single-stage thermo-electric generation system that temperature-difference power generation module is constituted is relatively low, thus constraining thermoelectric generation in Gao Pin
The direct development using (heat energy utilization produced by such as fuel combustion) field in potential energy source.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of thermal energy step utilizes the temperature difference of type
TRT.
This utility model is achieved through the following technical solutions：A kind of thermal energy step utilizes the temperature difference electricity generation device of type,
Including combustor, burner and flue, it is indoor that burner is arranged on burning, flue with combustion chamber it is characterised in that：In combustion
The outer wall burning room is provided with high temperature temperature-difference power generation module, and the hot junction of high temperature temperature-difference power generation module is arranged on outer wall of combustion chamber side,
The cold end of high temperature temperature-difference power generation module is arranged on cooling jacket side, and flue outer wall is provided with middle temperature temperature-difference power generation module, middle temperature
The hot junction of temperature-difference power generation module is arranged on flue outer wall side, and the cold end of middle temperature temperature-difference power generation module is arranged on air side,
The outside of high temperature temperature-difference power generation module is provided with cooling jacket, and cooling water pipe and low temperature thermo-electric generation are passed through in the outlet of cooling jacket
The hot junction connection of module, the cold end of low-temperature electricity-generating module is arranged on air side.
As further improvement of these options, high temperature temperature-difference power generation module selects PbTe type or PbSnTe type quasiconductor
Material is making；Middle temperature temperature-difference power generation module to be made from PbTe type semi-conductor thermoelectric material；Low temperature temperature-difference power generation module selects
Use Bi2Te3Type semi-conducting material is making.
As further improvement of these options, the cooling water pipe between cooling jacket and low temperature temperature-difference power generation module
Cooling water reheater is additionally provided with road, cooling water reheater is lifted in flue.
As further improvement of these options, the cold end of middle temperature temperature-difference power generation module is provided with radiating fin, low temperature
The cold end of temperature-difference power generation module is also equipped with radiating fin.
This utility model has advantages below compared to existing technology：This utility model is by high, medium and low three kinds of different moulds of temperature
Block is arranged in high-temperature region in same system, middle warm area and low-temperature space, forms the cascade utilization for thermal source, so that
Obtain the capacity usage ratio of whole thermo-electric generation system and efficiency is highly improved.Generating for temperature-difference power generation module itself
Characteristic, overcomes the not high shortcoming of existing thermo-electric generation system energy utilization efficiency, provides a kind of new cascaded utilization of energy type
Temperature difference electricity generation device is it is intended to pass through for high, medium and low temperature temperature-difference power generation module to be reasonably arranged in the high temperature producing that burns
Flue gas is in the different temperatures interval of the system of thermal source, and can effectively high temperature heat source be produced with cascade utilization effect, lifting temperature
The generating efficiency of difference electricity generation system.
Brief description
Fig. 1 is this utility model structural representation.
Specific embodiment
Below embodiment of the present utility model is elaborated, the present embodiment is being front with technical solutions of the utility model
Put and implemented, give detailed embodiment and specific operating process, but protection domain of the present utility model does not limit
In following embodiments.
A kind of thermal energy step utilizes the temperature difference electricity generation device of type, and including combustor 2, burner 1 and flue 3, burner 1 sets
Put in combustor 2, flue 3 is connected with combustor 2, the outer wall of combustor 2 is provided with high temperature temperature-difference power generation module 6, high temperature
The hot junction of temperature-difference power generation module 6 is arranged on combustor 2 outer wall side, and the cold end of high temperature temperature-difference power generation module 6 is arranged on cooling water
Cover 5 sides, flue 3 outer wall is provided with middle temperature temperature-difference power generation module 7, the hot junction of middle temperature temperature-difference power generation module 7 is arranged on outside flue 3
Wall side, the cold end of middle temperature temperature-difference power generation module 7 is arranged on air side, is provided with the outside of high temperature temperature-difference power generation module 6
Cooling jacket 5, the outlet of cooling jacket 5 is connected with the hot junction of low temperature temperature-difference power generation module 8 by cooling water pipe 9, low-temperature electricity-generating
The cold end of module is arranged on air side.
, as a kind of all solid state thermoelectric conversion mode, its structure is simple, and movement-less part for thermoelectric generation, and thermal source is fitted
Strong with property, thermal source that therefore can produce in conjunction with useless waste heat, solar energy or combustion of natural gas etc. is generated electricity.Even so, system
About the large-scale development of thermo-electric generation system and the maximum bottleneck of application are that its generating efficiency is still relatively low.And existing with
The high-temperature flue gas that burning produces are in the thermo-electric generation system of thermal source, due to only employing single-stage high temperature thermo-electric generation mould in system
Block 6, therefore can only utilize the high-temperature flue gas section of system, and the heat in the flue gas for middle low-temperature zone and heated cooling water
Then can utilize not, cause the waste of energy and the low of generating efficiency.
Because the temperature in combustor 2 is very high, in order to enable, heat is as much as possible to be used for generating electricity, combustor
2 outer wall does not do isothermal holding, enables the hot junction of high-temperature power generation module to reach very high temperature, sends out to increase the high temperature temperature difference
The temperature difference at the cold and hot two ends of electric module 6, the cold junction temperature that makes that can be as fast as possible using the scheme of cooling jacket 5 reduces, thus having
Effect ensures that the temperature difference makes electricity generation module normal work.Flue gas after burning also has very high temperature, but with respect to combustor 2
Temperature has reduced much, to generate electricity in order to these energy of effectively utilizes, arranges the middle temperature temperature difference in the outer wall of flue 3 and sends out
Electric module 7 can the relatively low heat energy of these grades of effectively utilizes, after the cooling to high temperature temperature-difference power generation module 6, cooling water
In energy can be utilized by low temperature temperature-difference power generation module 8.Because the temperature-difference power generation module of each type is in different temperatures area
Conversion efficiency of thermoelectric in domain is different, by the energy cascade producing burning, and is directed to the energy of different tastes using relatively
The temperature-difference power generation module answered changing into electric energy, solve the problems, such as thermo-electric generation cannot efficient utilization heat energy efficiency low.By
In this utility model in running, on the one hand, high, medium and low temperature temperature-difference power generation module 8 can be operated in respective optimal temperature
Degree is interval, improves the generating efficiency of module；On the other hand, the high-temperature flue gas of system, middle temperature flue gas and cooling water can
It is obtained by, the cascade utilization for heat energy is defined with this, therefore system whole efficiency is improved.
High temperature temperature-difference power generation module 6 to be made from PbTe type or PbSnTe type semi-conducting material；Middle temperature thermo-electric generation mould
Block 7 to be made from PbTe type semi-conductor thermoelectric material；Low temperature temperature-difference power generation module 8 selects Bi2Te3Type semi-conducting material is making
Make.Understood it has been found that there being a variety of materials to be suitable for doing thermoelectric material according to correlational study, according to the operational temperature of different materials
Difference, high-temperature thermoelectric material, warm thermoelectric material and low-temperature thermoelectric material can be divided into.There are some researches show and utilize Bi2Te3
The low-temperature difference generating system being fabricated to thermal source be 80 DEG C hot water heating under, have preferably static and dynamic property.
According to correlational study, the high temperature temperature difference being made up of p-type semiconductor material PbSnTe and N-type semiconductor material PbTe/PbSnTe
When electricity generation module 6 is operated in high-temperature region (640～730 DEG C), there is higher electric energy output.
It is additionally provided with cooling water reheater on cooling water pipe 9 road between cooling jacket 5 and low temperature temperature-difference power generation module 8
4, cooling water reheater 4 is lifted in flue 3.Due to be delivered directly to the high-temperature flue gas in flue 3 from combustor 2 temperature very
Height, tends to reach 500～600 DEG C, and the optimum working temperature having exceeded middle temperature temperature-difference power generation module 7 is interval, by cigarette
Road 3 arranges the temperature that cooling water reheater 4 can effectively reduce flue gas, cooling water reheater 4 simultaneously with combustor 2 connecting portion
Can be by the energy recovery of this part, the thermal source for low temperature temperature-difference power generation module 8 is it is ensured that the normal work of whole TRT
Make, so that the thermoelectric conversion rate of device is improved simultaneously.
The cold end of middle temperature temperature-difference power generation module 7 is provided with radiating fin, and the cold end of low temperature temperature-difference power generation module 8 is also equipped with
Radiating fin.Fin can help cold end to keep the steady statue of low temperature, makes middle temperature temperature-difference power generation module 7 and low temperature thermo-electric generation
The temperature difference of module 8 is constant, enables normal work.
These are only preferred embodiment of the present utility model, not in order to limit this utility model, all in this practicality
Any modification, equivalent and improvement made within new spirit and principle etc., should be included in guarantor of the present utility model
Within the scope of shield.
Claims (4)
1. a kind of thermal energy step utilizes the temperature difference electricity generation device of type, including combustor, burner and flue, described burner setting
Indoor in burning, described flue with combustion chamber it is characterised in that：The outer wall of combustor is provided with high temperature thermo-electric generation mould
Block, the hot junction of described high temperature temperature-difference power generation module is arranged on outer wall of combustion chamber side, the cold end of described high temperature temperature-difference power generation module
It is arranged on cooling jacket side, described flue outer wall is provided with middle temperature temperature-difference power generation module, described middle temperature temperature-difference power generation module
Hot junction is arranged on flue outer wall side, and the cold end of described middle temperature temperature-difference power generation module is arranged on air side, in described high temperature temperature
The outside of difference electricity generation module is provided with cooling jacket, and cooling water pipe and low temperature thermo-electric generation mould are passed through in the outlet of described cooling jacket
The hot junction connection of block, the cold end of low-temperature electricity-generating module is arranged on air side.
2. as claimed in claim 1 a kind of thermal energy step utilize type temperature difference electricity generation device it is characterised in that：The described high temperature temperature difference
Electricity generation module selects PbTe type or PbSnTe type semi-conducting material manufacturing；Described middle temperature temperature-difference power generation module is partly led from PbTe type
Body heat electric material makes；Described low temperature temperature-difference power generation module selects Bi2Te3Type semi-conducting material manufacturing.
3. as claimed in claim 2 a kind of thermal energy step utilize type temperature difference electricity generation device it is characterised in that：Cooling jacket with
Cooling water reheater is additionally provided with the cooling water pipeline between low temperature temperature-difference power generation module, described cooling water reheater is lifted on
In described flue.
4. as claimed in claim 1 a kind of thermal energy step utilize type temperature difference electricity generation device it is characterised in that：The described middle temperature temperature difference
The cold end of electricity generation module is provided with radiating fin, and the cold end of described low temperature temperature-difference power generation module is also equipped with radiating fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620888629.9U CN205945554U (en) | 2016-08-16 | 2016-08-16 | Temperature difference power generation devices of heat energy cascade utilization type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620888629.9U CN205945554U (en) | 2016-08-16 | 2016-08-16 | Temperature difference power generation devices of heat energy cascade utilization type |
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| CN205945554U true CN205945554U (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620888629.9U Expired - Fee Related CN205945554U (en) | 2016-08-16 | 2016-08-16 | Temperature difference power generation devices of heat energy cascade utilization type |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106100452A (en) * | 2016-08-16 | 2016-11-09 | 中国大唐集团科学技术研究院有限公司华东分公司 | A kind of thermal energy step utilizes the temperature difference electricity generation device of type |
| CN111759124A (en) * | 2019-04-01 | 2020-10-13 | 张敬伟 | Water heating mattress device with thermoelectric generation function |
-
2016
- 2016-08-16 CN CN201620888629.9U patent/CN205945554U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106100452A (en) * | 2016-08-16 | 2016-11-09 | 中国大唐集团科学技术研究院有限公司华东分公司 | A kind of thermal energy step utilizes the temperature difference electricity generation device of type |
| CN111759124A (en) * | 2019-04-01 | 2020-10-13 | 张敬伟 | Water heating mattress device with thermoelectric generation function |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170208 Termination date: 20200816 |
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| CF01 | Termination of patent right due to non-payment of annual fee |