CN201146475Y - Thermoelectricity generator - Google Patents
Thermoelectricity generator Download PDFInfo
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- CN201146475Y CN201146475Y CNU2008200786461U CN200820078646U CN201146475Y CN 201146475 Y CN201146475 Y CN 201146475Y CN U2008200786461 U CNU2008200786461 U CN U2008200786461U CN 200820078646 U CN200820078646 U CN 200820078646U CN 201146475 Y CN201146475 Y CN 201146475Y
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- electrode unit
- generating device
- condenser
- thermoelectric generating
- thermoelectric
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Abstract
The utility model provides a thermoelectricity generating device, which is characterized in that the utility model comprises an electrode unit and a cooling system, wherein, the electrode unit is made from thermoelectric materials; one end of the electrode unit which is near heat source is a heating end, while the end which is near the cooling system is a cooling end; the cooling system consists of an evaporation segment, an ascending pipe, a condenser and a return line; the evaporation segment is a closed container which is filled with cooling fluid inside; the cooling end goes through the evaporation segment; the evaporation segment, the ascending pipe, the condenser and the return line are connected in sequence to form a loop; the return line is arranged at the bottom of the condenser. The thermoelectricity generating device of the utility model can use industrial waste heat and afterheat to generate electricity, the generating mode of which is energy-saving and environmental responsible.
Description
Technical field
The utility model relates to a kind of Blast Furnace Top Gas Recovery Turbine Unit (TRT), particularly a kind ofly can effectively utilize the Blast Furnace Top Gas Recovery Turbine Unit (TRT) that various used heat, waste heat generate electricity by thermoelectric material, belongs to the power technology field.
Background technology
Thermoelectric material is a kind of material of changing mutually by material internal carrier moving realization heat energy and electric energy.Its physical characteristics is when there is the temperature difference in the thermoelectric material two ends, can form a stable electrical potential difference by nature at these two ends.According to the material that the thermoelectric material characteristics are arranged some alloys normally, as the now co-sb alloy of extensive use, sige alloy, bismuth tellurium alloy etc.Utilize the physical characteristics of thermoelectric material, people can carry out many practical applications, for example utilize thermoelectric material to make thermocouple and measure temperature.
In the modern life and industry, exist a large amount of used heat, waste heat.These heat energy are difficult to be recovered utilization because its energy level is low, are often directly drained into atmosphere.This is not only a kind of waste of the energy, also can cause the pollution of environment simultaneously.Therefore, in conjunction with the physical characteristics of thermoelectric material, the used heat, the waste heats that effectively utilize a large amount of existence in the industry carry out thermoelectric power generation, become a kind of emerging generation technology.This generation technology has obtained people's attention gradually owing to the characteristics of its energy-saving and environmental protection, applied range.
In the thermoelectric power generation technology, the factor that determines its generating efficiency is except that the thermoelectric figure of merit of thermoelectric material itself, and most important factor is the temperature difference at thermoelectric material two ends.The temperature difference at thermoelectric material two ends is big more, and its power output is also big more.Therefore, how rapidly the non-heating end of heat of cooling electric material makes the thermoelectric material two ends keep a higher temperature difference, becomes a major issue that improves thermopower generation efficiency.
Summary of the invention
The purpose of this utility model is to provide a kind of can effectively utilize the Blast Furnace Top Gas Recovery Turbine Unit (TRT) that various used heat, waste heat generate electricity by thermoelectric material.
The purpose of this utility model is achieved by following technical proposals:
Thermoelectric generating device is characterized in that: comprise electrode unit and cooling system;
Described electrode unit is made by thermoelectric material; This electrode unit is a heating end near an end of thermal source, and an end of close described cooling system is a colling end;
Described cooling system is made of evaporation section, riser, condenser, return duct; Described evaporation section is a closed container; Cooling fluid is housed in the evaporation section; The colling end of described electrode unit is adjacent to or passes described evaporation section; Described evaporation section, riser, condenser, return duct are in turn connected to form the loop; Described return duct is arranged at the bottom of condenser.
The electrode that described electrode unit is made by two different thermoelectric materials constitutes; This two strip electrodes, one end sintering links together and is heating end; The other end is split up into colling end.
Described thermoelectric generating device includes a plurality of described electrode units; Between each electrode unit or serial or parallel connection or connection in series-parallel in conjunction with connection.
Described cooling fluid is a distilled water.
Also be provided with a blast pipe at the top of described condenser; Alternate upper air valve and the lower air valve of being provided with on this blast pipe.
In the described cooling system is vacuum environment.
Described return duct exceeds described condenser bottom certain altitude.
The heating end of described electrode unit is provided with a plurality of fins.
A plurality of fin are set on the wall of described condenser.
The beneficial effects of the utility model are: by this thermoelectric generating device, can effectively utilize various used heat, waste heat generates electricity, and a kind of generation mode of energy-saving and environmental protection is provided.
Description of drawings
Fig. 1 is the structure chart of thermoelectric generator.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As shown in Figure 1, thermoelectric generating device of the present utility model comprises electrode unit 1 and cooling system 2.
The electrode that electrode unit 1 is made by two different thermoelectric materials constitutes.Two strip electrodes, one end sintering links together, and the other end separately.An end that is sintered connection gos deep into thermal source as heating end, and divides the beginning system 2 of catching a cold to be cooled to colling end.This Blast Furnace Top Gas Recovery Turbine Unit (TRT) promptly realizes stable generating by the temperature difference that keeps electrode unit 1 heating end and colling end, and wherein the termination of colling end two strip electrodes is respectively the both positive and negative polarity of electrode unit.In addition, the thermal efficiency for further intensifier electrode unit 1 heating end can be provided with a plurality of fin (not shown) at this end, to increase the contact area of electrode unit 1 and thermal source.
Cooling system 2 is made up of evaporation section 21, riser 22, condenser 23 and return duct 24.Evaporation section 21 is a closed container, and cooling fluid is housed in it.The colling end of electrode unit 1 passes evaporation section 21, is subjected to cooling of its interior cooling fluid, and finally remains on the temperature of coolant boiling.The a large amount of high-temperature gas cooling fluids that produced behind the coolant boiling in the evaporation section 21 enter condenser 23 through riser 22.The high-temperature gas cooling fluid is lowered the temperature in condenser 23 and is condensed into liquid coolant.Return duct 24 is arranged at the bottom of condenser 23.Condensed liquid coolant forms loop structure in return duct 24 flow back into evaporation section 21.
Here, because above-mentioned cooling system 2 is the temperature that keep the electrode unit colling end by coolant boiling.In order further to reduce the temperature of electrode unit colling end, strengthen the temperature difference at electrode unit 1 two ends, should make in the whole cooling system 2 to be in vacuum environment, to reduce the boiling point of cooling fluid.
In addition, a plurality of fin 231 can also be set on the wall of condenser 23, to increase the effect of its condensation heat radiation.And,, return duct 24 can be exceeded condenser 23 bottom certain altitude (not shown), so that condenser 23 bottoms can store certain cooling fluid in order to keep cooling system 2 interior liquid circulation steady.
In this practical work example, use distilled water electrode unit to be lowered the temperature as cooling fluid.After evaporation section 21 wall steel bodies and the distilled water Long contact time, can produce the hydrogen of trace.These hydrogen can be gathered in the top of condenser 23, thereby influence the operate as normal of condenser 23.In order to address this problem, also be provided with a blast pipe 25 at condenser 23 tops, alternate upper air valve and the lower air valve of being provided with on this blast pipe.When operate as normal, lower air valve is opened, and upper air valve is closed.When needs discharging hydrogen, close lower air valve earlier, opening upper air valve, make hydrogen eductor condenser 23.
Here should be pointed out that according to the thermoelectric power generation principle as long as there is the temperature difference in the thermoelectric material two ends, nature can form a stable electrical potential difference between these two ends.Therefore, the electrode unit of making based on this electricity generating principle is not limited in the version that an above-mentioned end sintering one end separates.And inventive point of the present utility model is to provide a fully cooling system of cooling for electrode unit, so that form the bigger temperature difference between the colling end of electrode unit and the heating end.Therefore, though the actual electrode unit that uses which kind of version, as long as adopt cooling system described in the utility model all should be considered as within protection range of the present utility model.
In like manner, in above-mentioned thermoelectric generating device structure, only provide the elementary cell that constitutes thermoelectric generating device.But in actual applications, it is far from being enough depending merely on an electrode unit, often need be formed the generating network and be used by some electrode units or serial or parallel connection or connection in series-parallel combination.And this because of actual needs forms different latticed forms with the electrode unit tissue, should not exceed protection range of the present utility model yet.
Claims (9)
1, thermoelectric generating device is characterized in that: comprise electrode unit and cooling system;
Described electrode unit is made by thermoelectric material; This electrode unit is a heating end near an end of thermal source, and an end of close described cooling system is a colling end;
Described cooling system is made of evaporation section, riser, condenser, return duct; Described evaporation section is a closed container; Cooling fluid is housed in the evaporation section; The colling end of described electrode unit is adjacent to or passes described evaporation section; Described evaporation section, riser, condenser, return duct are in turn connected to form the loop; Described return duct is arranged at the bottom of condenser.
2, thermoelectric generating device as claimed in claim 1 is characterized in that: the electrode that described electrode unit is made by two different thermoelectric materials constitutes; This two strip electrodes, one end sintering links together and is heating end; The other end is split up into colling end.
3, thermoelectric generating device as claimed in claim 1 or 2 is characterized in that: described thermoelectric generating device includes a plurality of described electrode units; Between each electrode unit or serial or parallel connection or connection in series-parallel in conjunction with connection.
4, thermoelectric generating device as claimed in claim 1 is characterized in that: described cooling fluid is a distilled water.
5, thermoelectric generating device as claimed in claim 4 is characterized in that: also be provided with a blast pipe at the top of described condenser; Alternate upper air valve and the lower air valve of being provided with on this blast pipe.
6, as claim 1 or 4 described thermoelectric generating devices, it is characterized in that: be vacuum environment in the described cooling system.
7, thermoelectric generating device as claimed in claim 1 is characterized in that: described return duct exceeds described condenser bottom certain altitude.
8, thermoelectric generating device as claimed in claim 1 is characterized in that: the heating end of described electrode unit is provided with a plurality of fins.
9, thermoelectric generating device as claimed in claim 1 is characterized in that: a plurality of fin are set on the wall of described condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200786461U CN201146475Y (en) | 2008-01-21 | 2008-01-21 | Thermoelectricity generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200786461U CN201146475Y (en) | 2008-01-21 | 2008-01-21 | Thermoelectricity generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201146475Y true CN201146475Y (en) | 2008-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200786461U Expired - Fee Related CN201146475Y (en) | 2008-01-21 | 2008-01-21 | Thermoelectricity generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201146475Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101425768B (en) * | 2008-11-21 | 2012-01-18 | 华南师范大学 | Industrial cooling and waste heat recovery apparatus |
-
2008
- 2008-01-21 CN CNU2008200786461U patent/CN201146475Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101425768B (en) * | 2008-11-21 | 2012-01-18 | 华南师范大学 | Industrial cooling and waste heat recovery apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20081105 Termination date: 20170121 |
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| CF01 | Termination of patent right due to non-payment of annual fee |