CN103712484A - Waste heat circulator - Google Patents
Waste heat circulator Download PDFInfo
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- CN103712484A CN103712484A CN201310748792.6A CN201310748792A CN103712484A CN 103712484 A CN103712484 A CN 103712484A CN 201310748792 A CN201310748792 A CN 201310748792A CN 103712484 A CN103712484 A CN 103712484A
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- heat
- waste heat
- waste
- air
- heat exchanger
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Abstract
The invention provides a waste heat circulator. The waste heat circulator is characterized by being composed of a vortex compressor, a negative pressure air extractor and 3-5 sets of shell and tube heat exchangers. A shell pass is inflated with the waste heat gas, the inlet of the shell pass is connected with the vortex compressor, and the air pressure is improved to 150-300KPa; a tube pass is inflated with air, the outlet of the tube pass is connected with the negative pressure air extractor, the air pressure is reduced to 30-60Kpa, accordingly, 90-99% of waste heat can be basically recycled through pressure increasing and pressure reducing, the boiler efficiency is improved, energy is saved, and the waste heat circulator is used for a coal boiler, a natural gas boiler and the like.
Description
Technical field
The present invention relates to a kind of heat recovery machine, especially machine waste heat recovery.
Background technology
Machine waste heat recovery mainly contains at present:
1, heat pipe waste-heat recoverer
Heat pipe waste-heat recoverer is to utilize the efficient heat transfer characteristic of heat pipe and the heat-exchanger rig that environmental suitability is manufactured thereof, and is mainly used in industrial energy saving field, can extensively reclaim the discarded thermal source being present in gaseous state, liquid state, solid state medium.According to the state of hot fluid and cold fluid, heat pipe waste-heat recoverer can be divided into: gas-gas formula, gas-vapour formula, gas-liquid formula, liquid-liquid formula, liquid-gas formula.According to the version of recover, can be divided into: monoblock type, separate type and combined type.
2, dividing wall type heat exchanger
Heat exchanger is chemical industry, oil, and power, the common apparatus of food and other many industrial departments, occupies critical role aborning. and in Chemical Manufacture, heat exchanger can be used as heater, cooler, condenser, evaporimeter and reboiler etc., applies more extensive.Heat exchanger kind is a lot, but substantially can divide three major types according to the principle of cold and hot fluid exchange heat and mode: dividing wall type, hybrid and heat accumulating type.In three class heat exchangers, dividing wall type heat exchanger application at most.Common dividing wall type heat exchanger is as: cooling tower (or claiming cooling column), gas scrubbing tower (or claiming scrubbing tower), injecting type heat exchanger, mixing condenser.
3, heat regenerator
Heat regenerator, for carrying out the equipment of regenerative heat-exchange, is generally used for medium is mixed and requires lower occasion.The in-built solid filler of heat exchanger, in order to store up heat.Generally with refractory brick etc., be built into fiery grid (sometimes using metal wave belt etc.).
Regenerative heat-exchange divides two stages to carry out.First stage, hot gas, by fiery grid, is passed to fiery grid by heat and stores up.Second stage, cold air is by fiery grid, accepts the heat that fiery grid saves and is heated.These two stages hocket.Conventionally with two storage heaters, be used alternatingly,, when hot gas enters a device, cold air enters another device.Be usually used in metallurgical industry, as the regenerator of open hearth.Also for chemical industry, as the air preheater in gas burner or combustion chamber, the heat accumulating type cracking funace in artificial petroleum factory.
4, energy-saving ceramic heat exchanger
Ceramic heat exchanger is a kind of novel heat transmission equipment, has replaced traditional metal heat-exchange equipment under high temperature or corrosive environment.With its special substance---SIC matter, has become the cold air of the original use of kiln into the object that hot-air reaches waste heat recovery.Because it can use for a long time for a long time in the concentrated sulfuric acid, hydrochloric acid and alkaline gas, liquid.Anti-oxidant, resistance to thermal shock, elevated temperature strength is high, and antioxygenic property is good, long service life.Heat is attacked Industrial Stoves.Using the hot blast exchanging for as combustion air, send kiln and combustion gas to and form gaseous mixture and burn, can save energy 25%-45%, the even more energy.
5, jet model mixing heating unit
Jet model mixing heating unit be fluidics in the application of field of heat transfer, jet model mixing heating unit is by the equipment of direct mixing heat production in the next life water of vapour, water two-phase fluid.Jet model mixing heating unit has and passes that to change efficiency high, noise low (can reach 65dB following), volume is little, install simple, reliable, small investment.Utilize jet model mixing heating unit to reclaim the waste heat in power plant, paper mill, chemical plant, heating recirculated water.
Jet model mixing heating unit is particularly suitable for using in area of heat-supply service is no more than the middle-size and small-size heating system of 60,000 square metres, replaces the function of surface heater.Different according to the condition of thermal source, the temperature of heating water can improve 20 ℃～50 ℃.If require the temperature rise of water larger, also can adopt two-stage jet model mixing heating unit arranged in series to use.
These are not too high to boiler afterheat organic efficiency.
Summary of the invention
The invention provides the high heat regenerator of a kind of boiler afterheat organic efficiency.
Technical scheme is as follows:
A kind of waste-heat recoverer, it is characterized in that by screw compressor, negative pressure ventilation machine, 3-5 group case tube heat exchanger forms, and at the logical waste heat gas of shell side, shell side import connects screw compressor, air pressure is brought up to 150～300KPa, tube side blowing air, tube side outlet connects negative pressure ventilation machine, and air pressure is reduced to 30～60KPa.
Progressive effect is: by supercharging and decompression, 90～99% of the waste heat of substantially can waving, improves boiler efficiency, realizes energy-conservation.
Accompanying drawing explanation
Accompanying drawing is schematic diagram of the present invention.
Wherein: 1, tube side outlet; 2, waste heat gas vent; 3, case tube heat exchanger; 4, air outlet slit; 5, shell side import; 6, screw compressor; 7, negative pressure ventilation machine.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention will be further described: a kind of waste-heat recoverer, it is characterized in that by screw compressor 6, negative pressure ventilation machine 7,3-5 group case tube heat exchanger 3 forms, and at the logical waste heat gas of shell side, shell side import 5 connects screw compressor 6, air pressure is brought up to 150～300KPa, tube side blowing air, tube side outlet 1 connects negative pressure ventilation machine 7, and air pressure is reduced to 30～60KPa.
In concrete enforcement, there are a plurality of implementation details and prioritization scheme:
1. screw compressor is placed between second to the 3rd group case tube heat exchanger.
2. pair air intlet carries out current limliting, can reduce the atmospheric pressure in case tube heat exchanger.
Waste-heat recoverer of the present invention, can be for fire coal, and the boilers such as natural gas improve boiler temperature, and realize energy-conservation.
Claims (3)
1. a waste-heat recoverer, it is characterized in that by screw compressor, negative pressure ventilation machine, 3-5 group case tube heat exchanger forms, and at the logical waste heat gas of shell side, shell side import connects screw compressor, air pressure is brought up to 150～300KPa, tube side blowing air, tube side outlet connects negative pressure ventilation machine, and air pressure is reduced to 30～60KPa.
2. waste-heat recoverer according to claim 1, is characterized in that screw compressor is placed between second to the 3rd group case tube heat exchanger.
3. waste-heat recoverer according to claim 1, is characterized in that air intlet to carry out current limliting, can reduce the atmospheric pressure in case tube heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310748792.6A CN103712484A (en) | 2013-12-31 | 2013-12-31 | Waste heat circulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310748792.6A CN103712484A (en) | 2013-12-31 | 2013-12-31 | Waste heat circulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103712484A true CN103712484A (en) | 2014-04-09 |
Family
ID=50405654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310748792.6A Pending CN103712484A (en) | 2013-12-31 | 2013-12-31 | Waste heat circulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103712484A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179035A (en) * | 2015-07-21 | 2015-12-23 | 江苏乐科热力科技有限公司 | Low-temperature waste-heat organic Rankine cycle power generation system |
| CN111121340A (en) * | 2020-01-15 | 2020-05-08 | 安徽普泛能源技术有限公司 | Method and system for recycling multi-quality waste heat |
-
2013
- 2013-12-31 CN CN201310748792.6A patent/CN103712484A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179035A (en) * | 2015-07-21 | 2015-12-23 | 江苏乐科热力科技有限公司 | Low-temperature waste-heat organic Rankine cycle power generation system |
| CN111121340A (en) * | 2020-01-15 | 2020-05-08 | 安徽普泛能源技术有限公司 | Method and system for recycling multi-quality waste heat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140409 |
|
| WD01 | Invention patent application deemed withdrawn after publication |