CN101425768B - Industrial cooling and waste heat recovery apparatus - Google Patents
Industrial cooling and waste heat recovery apparatus Download PDFInfo
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- CN101425768B CN101425768B CN2008102193041A CN200810219304A CN101425768B CN 101425768 B CN101425768 B CN 101425768B CN 2008102193041 A CN2008102193041 A CN 2008102193041A CN 200810219304 A CN200810219304 A CN 200810219304A CN 101425768 B CN101425768 B CN 101425768B
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Abstract
The invention relates to an industrial cooling and waste heat recovering device which comprises a collecting cell used for collecting cooling liquid with heat and connected with an electricity generating cell by a liquid outlet and a liquid outlet pipeline arranged on the collecting cell, one side of the electricity generating cell is provided with a thermal-electric electricity generating material enclosed in a protecting case, the electricity generating cell is also provided with a liquid outlet connected with a residual heat radiating cell which is provided with a temperature sensor and pumps the cooling liquid in the residual heat radiating cell to a ground container for circulation, and a liquid extracting pump of a cooler is connected with the temperature sensor, thus, the invention has the advantages of simple structure, low cost and small land occupying area; in addition, because the cooling liquid is used for replacing water used as the cooling liquid, the cooling liquid in the cooler does not volatilize, the water consumption caused by the volatilization of the cooling water can be avoided, the cost caused by the water consumption is reduced, and the water resource is saved; the residual heat can be used for electricity generation, the residual heat and the energy source are sufficiently used, and meanwhile, the heat pollution of the residual heat on the environment is reduced.
Description
Technical field
The present invention is a kind of industry cooling and waste heat recovery plant, belongs to the renovation technique of industry cooling and waste heat recovery plant.
Background technology
Growing along with society, the energy is urgent, water shortage, ecological deterioration are the three big major issues that current society faces.Therefore, various possible measures be must take as far as possible, the existing energy and water resources made full use of.
With regard to the energy; About 90% electric power comes from the turbine generation that fossil fuel (like coal, oil) is made thermal source at present; Its typical conversion efficiency of thermoelectric is 30-40%; The heat that means nearly 15 terawatts in the annual whole world is dissipated in the environment and (except wasting energy, also causes the thermal pollution of environment).On the other hand, these used heat usually need a large amount of water to cool off consume water resources.Have data that this point can be described: water for industrial use takies the overwhelming majority of water, and the industrial colling that is used for cooling off these used heat accounts for 121% of water for industrial use; Cooling water is the rich and influential family in the water for industrial use; Account for more than 67% of industry total water amount; That is to say that cooling water amount accounts for more than 2/3 of water for industrial use total amount; And oil wherein, chemical industry, steel and iron industry, cooling water amount is more up to 120～90% of total water amount, and this is a ratio that ten minutes is huge.With water consumption per hour is that 100,000 tons petrochemical plant is an example, and a day water consumption reaches 2,400,000 tons.As in 30 tons for each person every year, then one day water consumption of petrochemical plant can be supplied 30,000 humans 1 year.Water rich and influential family like this, the whole nation has hundreds of individual.Therefore how well with used heat become high-end form of energy-electric energy, the consumption that reduces cooling water becomes a problem that ten minutes is urgent.
Now there have been many researchers to make suitable contribution in this respect, but also do not had ready-made technology and the scheme of utilizing waste-heat power generation can fully the cooling water saving be got off again well.Like one Chinese patent application number is to disclose a kind of technical scheme in 200420012422.2; It has adopted the scheme that comprises condensing agent (like dry ice, silver iodide etc.), dispenser and control system; It is to the improvement of existing generally employing technology, has practiced thrift cooling water, but has failed to make full use of used heat." electric power station system engineering ", Vol.23, No.6; Your green grass or young crops of Liu of Shandong University etc. " discussion of adverse current wet cooling tower water-saving technology " disclosed pp47-51 (2007)); It utilizes adverse current wet cooling tower water-saving technology, has reduced the loss of cooling water, but does not consider the utilization of used heat.
Summary of the invention
The objective of the invention is to consider the problems referred to above and a kind of cost that cooling water brings that can save be provided that the conserve water resource also can be used for generating and make full use of the energy with used heat, has practiced thrift the industry cooling and the waste heat recovery plant of the energy.The present invention is simple in structure, and cost is low.Can be applied to have surplus heat and need all industry of cooling water, be a brand-new industrial common technology.
Technical scheme of the present invention is: industry cooling of the present invention and waste heat recovery plant; Include the collecting pit of the cooling liquid that is used for the collecting belt heat, collecting pit communicates with the generating pond through its set liquid outlet and fluid pipeline, and a side in generating pond is equiped with the thermoelectric power generation material; The thermoelectric power generation material is enclosed in the protection box; Collecting pit, generating pond all are installed in underground, and the generating pond also is provided with liquid outlet, and liquid outlet is connected to waste heat heat radiation pond; Waste heat heat radiation is equiped with temperature sensor in the pond, and waste heat is dispelled the heat, and the drawing liquid pump in order to the circulation cooling device links to each other with temperature sensor in the container on cooling liquid pump to the ground in the pond.
The set liquid outlet of above-mentioned collecting pit is provided with first control switch.
Above-mentioned cooling liquid has the boiling point that is higher than 100 ℃ of equipment maximum temperatures to be cooled at least.
Above-mentioned first control switch is a time switch.
The liquid outlet in above-mentioned generating pond also is provided with second control switch.
Above-mentioned second control switch is a time switch.
The pool wall of above-mentioned collecting pit is adiabatic, and the tube wall of fluid pipeline is adiabatic, and the pool wall of the side that the generating pond contacts with the thermoelectric power generation material is that good heat-conducting metal is made, and other pool walls are adiabatic.
Above-mentioned thermoelectric power generation material is the thermoelectric power generation material that includes hot junction and cold junction; The adjacent box wall in hot junction of protection box and thermoelectric power generation material is made by the good conductor material, and the box wall that the protection box is adjacent with thermoelectric power generation material cold junction reaches with underground adjacent box wall to be made by good thermally conductive materials.
The liquid outlet of above-mentioned drawing liquid pump is prepared the pond through pipeline and cooling liquid and is connected.
The present invention is underground owing to most of assembly is installed in, and except the pump that makes liquid circulation, does not have other dynamical system, and therefore, it is simple in structure, and cost is low, and floor space is little.On the other hand, owing to adopt cooling liquid to replace water as cooling liquid, and be used in the temperature range of the equipment of being cooled; Liquid contacts with it and is non-volatile; Can save cooling water because the consumption of the water that volatilization brings reduces the cost that brings thus, the conserve water resource; But also can used heat is used for generating electricity, make full use of used heat, make full use of the energy, reduced the thermal pollution of used heat simultaneously to environment, be a kind of technology of energy-saving and emission-reduction.Being applicable to all enterprises that needs water quench used heat, like steel plant, cement plant, power plant etc., is a brand-new industrial common technology.The present invention is that a kind of design is ingenious, function admirable, convenient and practical industry cooling and waste heat recovery plant.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Embodiment:
Structural representation of the present invention is as shown in Figure 1; Include the collecting pit 2 of the cooling liquid 1 that is used for the collecting belt heat; Collecting pit 2 communicates with generating pond 5 through its set liquid outlet 4 and fluid pipeline 3, and a side in generating pond 5 is equiped with thermoelectric power generation material 6, and thermoelectric power generation material 6 is enclosed in the protection box 7; Generating pond 5 also is provided with liquid outlet 12; Liquid outlet 12 is connected to waste heat heat radiation pond 13, and the waste heat heat radiation is equiped with temperature sensor 14 in the pond 13, and waste heat is dispelled the heat, and the drawing liquid pump 10 in order to the circulation cooling device links to each other with temperature sensor 14 in cooling liquid 1 pump to the container on ground in the pond 13.Cooling liquid 1 has the high characteristics of thermal conductivity, the fusing point that has the boiling point that is higher than 100 degrees centigrade of device temperatures at least and be lower than 20 ℃ of subsurface temperatures, and good fluidity.Because of cooling liquid 1 has such characteristics, thereby reusable edible.Thermoelectric power generation material 6 has good heat storage capacity in cooling liquid 1 possible temperature range; Thermoelectric power generation material 6 has from room temperature to the thermoelectric power generation material characteristics that directly thermal power transfer become electric energy in the 6 possible maximum temperature scopes; And thermoelectric power generation material 6 adopts the design of cascade, makes it to have high energy conversion efficiency.The pool wall of above-mentioned collecting pit 2 is adiabatic, and the tube wall of fluid pipeline 3 is adiabatic, and the pool wall of the side that generating pond 5 contacts with thermoelectric power generation material 6 is that good heat-conducting metal is made, and other pool walls are adiabatic.For saving the space, collecting pit 2, generating pond 5 all are installed in underground.
Discharge cooled cooling liquid 1 for ease of control liquid outlet 12, above-mentioned collecting pit 2 set liquid outlets 4 are provided with first control switch 8.Above-mentioned first control switch 8 is a time switch.The liquid outlet 12 in above-mentioned generating pond 5 also is provided with second control switch 9.Above-mentioned second control switch 9 is a time switch.
For ease of with cooling liquid 1 pump to ground, being recycled, in the present embodiment, the liquid outlet of above-mentioned drawing liquid pump 10 is connected with cooling fluid pool 15 through pipeline 11.Above-mentioned cooling fluid pool 15 is connected with cooling device.Pipeline 11 is made by Heat Conduction Material, even cooling liquid 1 also has certain temperature after from waste heat heat radiation pond 13, coming out, still can be dispersed into through the tube wall of pipeline 11 underground, thereby guaranteed that cooling liquid 1 can recycle cooling used heat.
In the present embodiment, generating pond 5 is done greatly as far as possible with the contact area of thermoelectric material, and vertical direction can be as far as possible little.The area in waste heat heat radiation pond 13 is big as far as possible, but the height of vertical direction is as far as possible little under the situation of the suction that helps pump.
In the present embodiment; Above-mentioned thermoelectric power generation material 6 is for including the thermoelectric power generation material of hot junction and cold junction; Protection box 7 is made by the good conductor material with the adjacent box wall in hot junction of thermoelectric power generation material 6, and the protection box 7 box walls adjacent with thermoelectric power generation material 6 cold junctions reach with underground adjacent box wall to be made by good thermally conductive materials.The output of thermoelectric power generation material 6 connects or converts alternating current into through transducer with storage battery and is connected with relevant electrical network.
First control switch 8 is to open a period of time at regular intervals, and the time interval, cooling rate waited to confirm according to the amount of cooling liquid 1.The cooling liquid 1 that gets off that is cooled in the generating pond 5 flows out to waste heat heat radiation pond 13 by control switch 9 controls; First control switch 8 and second control switch 9 are time switch; The flow of the time interval of time switch during according to the total amount of cooling liquid 1 and cooling device confirm, to guarantee cooling liquid 1 cooling device incessantly in the whole circulation process.The time set of the startup of first control switch 8 and second control switch 9 is associated, and promptly after second control switch 9 was opened certain hour, the cooling liquid 1 that first control switch 8 just starts to guarantee cooled cooling liquid 1 and heat can not mix.The pool wall in waste heat heat radiation pond 13 is good conductors, is beneficial to waste heat and is scattered in underground rapidly.After cooling liquid 1 wherein reached uniform temperature, the drawing liquid pump of controlling through temperature sensor 10 arrived on the ground cooling liquid 1 pump to reuse as cooling agent.The thermoelectric material equipment adopts the mode of cascade to improve the efficient of generating.
Operation principle of the present invention is following: the heat of cooling liquid 1 stores 6 generatings of heat supply electricity electricity generation material through generating pond 5 with heat.Simultaneously; Be cooled in the pond 5 temperature of the cooling liquid 1 that gets off of generating is surveyed by hygrosensor; After reaching uniform temperature; Open control switch 9, cooling liquid 1 is prepared against cooling industrial equipment to be cooled through drawing liquid pump 10 and pipeline 11 pumps to cooling fluid pool 15, to reuse as cooling agent.
Claims (8)
1. an industry is cooled off and waste heat recovery plant; It is characterized in that including the collecting pit (2) of the cooling liquid (1) that is used for the collecting belt heat; Collecting pit (2) communicates with generating pond (5) through its set liquid outlet (4) and fluid pipeline (3); And a side in generating pond (5) is equiped with thermoelectric power generation material (6); Thermoelectric power generation material (6) is enclosed in the protection box (7), and above-mentioned thermoelectric power generation material (6) is for including the thermoelectric power generation material of hot junction and cold junction, and protection box (7) is made by the good conductor material with the adjacent box wall in hot junction of thermoelectric power generation material (6); The box wall that protection box (7) is adjacent with thermoelectric power generation material (6) cold junction reaches with underground adjacent box wall to be made by good thermally conductive materials; Collecting pit (2), generating pond (5) all are installed in underground, and generating pond (5) also is provided with liquid outlet (12), and liquid outlet (12) is connected to waste heat heat radiation pond (13); Be equiped with temperature sensor (14) in the waste heat heat radiation pond (13), waste heat is dispelled the heat, and the drawing liquid pump (10) in order to the circulation cooling device links to each other with temperature sensor (14) in cooling liquid (1) pump to the container on ground in the pond (13).
2. industry cooling according to claim 1 and waste heat recovery plant is characterized in that the set liquid outlet of above-mentioned collecting pit (2) (4) is provided with first control switch (8).
3. industry cooling according to claim 1 and waste heat recovery plant is characterized in that above-mentioned cooling liquid (1) has the boiling point that is higher than 100 ℃ of equipment maximum temperatures to be cooled at least.
4. industry cooling according to claim 2 and waste heat recovery plant is characterized in that above-mentioned first control switch (8) is a time switch.
5. industry cooling according to claim 1 and waste heat recovery plant is characterized in that the liquid outlet (12) in above-mentioned generating pond (5) also is provided with second control switch (9).
6. industry cooling according to claim 5 and waste heat recovery plant is characterized in that above-mentioned second control switch (9) is a time switch.
7. according to claim 1 to 6 each described industry cooling and waste heat recovery plant; The pool wall that it is characterized in that above-mentioned collecting pit (2) is adiabatic; The tube wall of fluid pipeline (3) is adiabatic; The pool wall of the side that generating pond (5) contacts with thermoelectric power generation material (6) is that good heat-conducting metal is made, and other pool walls are adiabatic.
8. industry cooling according to claim 7 and waste heat recovery plant is characterized in that the liquid outlet of above-mentioned drawing liquid pump (10) is connected through pipeline (11) and cooling liquid preparation pond (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102193041A CN101425768B (en) | 2008-11-21 | 2008-11-21 | Industrial cooling and waste heat recovery apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102193041A CN101425768B (en) | 2008-11-21 | 2008-11-21 | Industrial cooling and waste heat recovery apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101425768A CN101425768A (en) | 2009-05-06 |
| CN101425768B true CN101425768B (en) | 2012-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008102193041A Expired - Fee Related CN101425768B (en) | 2008-11-21 | 2008-11-21 | Industrial cooling and waste heat recovery apparatus |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101958670B (en) * | 2009-07-15 | 2014-08-13 | 鸿富锦精密工业（深圳）有限公司 | Waste heat recovering system |
| CN104848367A (en) * | 2014-12-06 | 2015-08-19 | 重庆汇贤优策科技有限公司 | Hot water supply system |
| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1186942A (en) * | 1997-10-27 | 1998-07-08 | 易元明 | Technical method for industrial waste gas deep cooling and purifying and power generation and its device |
| CN101021197A (en) * | 2006-11-22 | 2007-08-22 | 王岗 | Blast furnace cooling water backwater top pressure power generation |
| CN201146475Y (en) * | 2008-01-21 | 2008-11-05 | 北京光耀环境工程有限公司 | Thermoelectricity generator |
-
2008
- 2008-11-21 CN CN2008102193041A patent/CN101425768B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1186942A (en) * | 1997-10-27 | 1998-07-08 | 易元明 | Technical method for industrial waste gas deep cooling and purifying and power generation and its device |
| CN101021197A (en) * | 2006-11-22 | 2007-08-22 | 王岗 | Blast furnace cooling water backwater top pressure power generation |
| CN201146475Y (en) * | 2008-01-21 | 2008-11-05 | 北京光耀环境工程有限公司 | Thermoelectricity generator |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平11-36982A 1999.02.09 |
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| CN101425768A (en) | 2009-05-06 |
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Granted publication date: 20120118 Termination date: 20121121 |