CN202902950U - Anticorrosion high-efficient waste heat recovery device - Google Patents
Anticorrosion high-efficient waste heat recovery device Download PDFInfo
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- CN202902950U CN202902950U CN 201220650205 CN201220650205U CN202902950U CN 202902950 U CN202902950 U CN 202902950U CN 201220650205 CN201220650205 CN 201220650205 CN 201220650205 U CN201220650205 U CN 201220650205U CN 202902950 U CN202902950 U CN 202902950U
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- waste heat
- efficient waste
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Abstract
The utility model discloses an anticorrosion high-efficient waste heat recovery device, which belongs to the field of energy conservation, and the anticorrosion high-efficient waste heat recovery device is characterized by comprising an upper passage, a lower passage and a heat conduction pipe, wherein one end of the upper passage is provided with an inlet, the other end of the upper passage is provided with an outlet, and the directions of an inlet and an outlet of the lower passage are opposite to that of the upper passage; the upper passage and the lower passage are separated by an intermediate separation plate; the heat conduction pipe penetrates through the intermediate separation plate, one part of the heat conduction pipe is arranged in the upper passage, and the other part of the heat conduction pipe is arranged in the lower passage; the inner wall of the heat conduction pipe is provided with an anticorrosion coating and plating layer; and heat conduction medium is arranged in the heat conduction pipe. Compared with the prior art, the anticorrosion high-efficient waste heat recovery device has the characteristics of high efficiency and long service life.
Description
Technical field
The utility model relates to a kind of energy saver, particularly a kind of anti-rotten efficient waste heat recover.
Background technology
Energy problem is the strategic issue that concerns China's long term growth, China is as the maximum developing country of world population, it is an energy resource consumption big country, it is again the big country of an energy scarcity, therefore the strategic position of energy savings and resource and outstanding take strong energy savings measure imperative.And the problem of environmental pollution that energy resource consumption brings also is the key factor that affects human survival and sustainable development, how constantly reduces when energy demand increases and pollutes, improves environment and become one of important topic of various countries scientific research institution, colleges and universities and enterprise.And the level of comprehensive utilization of China's current stage energy is lower, and the Task of energy-conservation aspect is arduous, significant, to development, the development and application of the energy-saving equipment direction of scientific rersearch that becomes to attach most importance to gradually.
In the energy source use field, the high efficiency utilization of fuel is everybody pursuit all the time.In each class A fuel A, coal is used still very general as present topmost traditional fossil fuel now.But its burning can produce a large amount of flue gases, and flue gas contains a large amount of carbon dioxide, sulfur dioxide, nitrogen oxide and flue dust, can cause serious pollution to environment.According to statistics, 1 ton of coal of every saving can reduce carbon dioxide (CO
2) about 2.6 tons of discharge capacity; Reduce the about 8.5kg of SO2 emissions; Reduce the about 7.4kg of oxynitride discharge amount; Reducing the about 0.5kg(carbon monoxide of carbon monoxide (CO) discharging calculates by international discharge standard).The evenly heat efficient of Industrial Boiler commonly used only has about 60 ~ 70%, heat energy about 1/4 by fume emission in atmosphere, the general industry exhaust gas temperature reaches more than 200 ℃, the exhaust gas temperature that has even up to more than 300 ℃, flue gas from the discharge of Industrial Stoves stove tail, temperature especially up to 600 ℃ ~ 1100 ℃, the heat of taking away account for fuel supply with heat 30% more than, cause the huge waste of fuel.When wasting energy resource, environmental pollution and greenhouse effects have been aggravated again.
Experimental results show that, 15～18 ℃ of every declines of the exhaust temperature of boiler smoke can improve boiler thermal output 1%, therefore reduce the important channel that exhaust gas temperature has become boiler energy-saving, therefore many large-sized boilers all are equipped with the economizer of cast iron or stainless steel, be used for Mist heat recovering, the heating boiler feedwater; Perhaps, heat air into burner hearth with air preheater.
But because the sulfur content of coal is higher, usually can produce oxysulfide during burning.Be combined rear easy formation sulfuric acid vapor with steam, in case the metal pipe-wall temperature of economizer is lower than the set point (being called acid dew point) of sulfuric acid vapor, will form liquid sulfuric acid (being commonly called as dewfall) on its surface.For a long time, the corrosion that traditional shell tubular type economizer causes owing to dewfall, even the perforation phenomenon often occur, have a strong impact on even running and the safety of boiler.So present boiler all is the generation that solves condensation trouble and reduce corrosion phenomenon by improving exhaust gas temperature, this causes exhaust gas temperature high.This class economizer is bulky in addition, easy dust, dust stratification, stifled ash, cause flue gas resistance increase, heat exchange efficiency to reduce gradually, service life is short, often wants deashing, so the less use shell-and-tube of medium small boiler cast iron gilled tube economizer, after large-sized boiler uses a period of time, the situation of seriously giving it up because of fouling often occurs, and the high-temperature flue gas of leaving is taken away amount of heat, has wasted the energy and resource.
The eighties in 20th century, enterprise has developed heat exchange of heat pipe gradually, produces heat-pipe air preheater and heat pipe economizer, through coming into operation, has obtained stem-winding good heat transfer effect.Because its superior thermal conductivity is simple in structure, be subject to paying attention to more and more widely, progressively be used for civilian the nineties, is widely used in high-tech areas such as computer, radars at present.But the defective such as the quick because generation of fixed gas, perishable, heat conductivility descend causes that heat transfer efficiency reduces, service life is shorter, have only use 1 year, 2 years, have in addition use less than 1 year, so, in the later stage nineties in last century, the application of general heat pipe heat exchanger has been absorbed in again low ebb.
At present, still lack long waste-heat recovery device in a kind of efficient and service life on the market.
The utility model content
Technical assignment of the present utility model is for above the deficiencies in the prior art, and a kind of new and effective, anti-rotten efficient waste heat recover that the life-span is long is provided, take fuel savings, reduce pollutant emission and protection of the environment as purpose.
The technical scheme in the invention for solving the technical problem is: a kind of anti-rotten efficient waste heat recover, it is characterized in that: upper channel, lower channel and heat pipe, described upper channel one end has entrance, and the other end has outlet, the entrance and exit direction of lower channel and described upper channel opposite direction; There is central dividing plate to separate between described upper channel and the lower channel; Described heat pipe runs through central dividing plate, and a part is in upper channel, and another part is in lower channel; Described heat pipe inwall has anticorrosion coated layer; In the described heat pipe heat-conducting medium is arranged.
Above-mentioned heat pipe shell is the alloy material shell.
Above-mentioned heat pipe is many.
Above-mentioned heat pipe is full finned tube.
Compared with prior art, the utlity model has following outstanding beneficial effect:
1, the utility model is installed in boiler mouth or the flue, with flue gas waste heat recovery, the heat that reclaims as required heating water is used as boiler replenishing water or domestic water, or adding hot-air as boiler auxiliary combustion wind or dried material, fractional energy savings reaches 10% ~ 30%, reduces discharging to reach 10% ~ 20%, thereby reduce production costs, improve boiler thermal output, reduce toxic emission, energy-conserving and environment-protective kill two birds with one stone;
2, adopt superconductor to make heat pipe package, cooperate the inorganic compound heat-conducting medium, the start-up point is low, and heat transmits with velocity of sound superconduction, and heat-conducting efficiency can reach more than 95%;
3, superconduction heat pipe isothermal is good, produce resonance during heat conduction, do not produce dirt and flowing resistance, there is not superpressure in the pipe, the interior pressure of heat pipe is variation with temperature and changing not, economizer more in the market, air preheater and general heat pipe heat exchanger waste heat recovery efficient are high, and longer service life, adaptive temperature scope are more extensive, affect in no instance the normal operation of boiler or kiln;
4, heat pipe can independently change the heating surface area of evaporator section, namely with less heating surface (area) (HS input heat, and with larger film-cooled heat quantity of heat given up, the heat transfer area input heat that perhaps heat pipe can be larger, and with less film-cooled heat quantity of heat given up;
5, heat pipe can singlely be changed, and dust stratification is removed easily, and is easy to maintenance quick.
Description of drawings
Fig. 1 is the structural representation of facing of the utility model embodiment 1.
Fig. 2 is the side-looking structural representation of the utility model embodiment 1.
Fig. 3 is the perspective view of the utility model embodiment 1.
Fig. 4 is the structural representation of facing of the utility model embodiment 2.
Fig. 5 is the side-looking structural representation of the utility model embodiment 2.
Fig. 6 is the perspective view of the utility model embodiment 2.
Fig. 7 is the structural representation of facing of the utility model embodiment 3.
Fig. 8 is the structural representation of facing of the utility model embodiment 4.
The specific embodiment
Below in conjunction with specification drawings and specific embodiments the utility model is further specified.
As shown in Figure 1, 2, 3, embodiment 1 is the gas-gas type air preheater, is the special equipment of the waste heat recoveries such as fuel oil, coal, gas boiler and Industrial Stoves, is installed in boiler smoke outlet or the flue, to add hot-air after the flue gas waste heat recovery, hot blast can be used as boiler auxiliary combustion or dried material.Its structure is: comprise upper channel 1, lower channel 2 and heat pipe 3, as shown by arrows in FIG., described upper channel 1 left end has the import of entrance 11(cold wind), right-hand member has outlet 12(hot-blast outlet), the entrance 21 of lower channel 2 and outlet 22 directions are opposite with described upper channel 1, right-hand member is that entrance 21(advances mouth), left end is outlet 22(outlet flue); There is central dividing plate 4 to separate between described upper channel 1 and the lower channel 2; Described heat pipe 3 runs through central dividing plate 4, and a part is in upper channel 1, and another part is in lower channel 2; Described heat pipe 3 inwalls have anticorrosion coated layer; In the described heat pipe 3 heat-conducting medium is arranged.Described heat pipe 3 is many, and present embodiment is full finned tube, and single heat pipe is replaceable.During work, the high-temperature flue gas lower channel 2 of flowing through washes away heat pipe 3, and the flue gas exothermic temperature descends, heat pipe heat absorption this moment.Heat pipe reaches upper channel 1 with the heat that absorbs, and the cold air in the upper channel 1 heats rapidly, heat pipe 3 heat releases this moment, and the air endothermic temperature raises.
Shown in Fig. 4,5,6, embodiment 2 is the air-water type heat exchanger, is coal-fired, oily, the special-purpose waste heat recovery apparatus of gas boiler, is installed on the boiler flue Mist heat recovering heating domestic water or boiler replenishing water.Its structure is: comprise upper channel 1, lower channel 2 and heat pipe 3, upper channel 1 is water tank, and lower channel 2 is flue.As shown by arrows in FIG., described upper channel 1 left end has entrance 11(cooling water inlet), right-hand member has outlet 12(hot water outlet), the entrance 21 of lower channel 2 and outlet 22 directions are opposite with described upper channel 1, right-hand member is that entrance 21(advances mouth), left end is outlet 22(outlet flue); There is central dividing plate 4 to separate between described upper channel 1 and the lower channel 2; Described heat pipe 3 runs through central dividing plate 4, and a part is in upper channel 1, and another part is in lower channel 2; Described heat pipe 3 inwalls have anticorrosion coated layer; In the described heat pipe 3 heat-conducting medium is arranged.Described heat pipe 3 is many, and present embodiment is full finned tube, and heat pipe 3 shells are the chrome molybdenum shell.During work, smoke gas flow washes away heat pipe 3 lower ends through lower channel 2, after heat pipe 3 heat absorptions heat is directed at upper channel 1, and water is heated in heat pipe 3 upper end heat releases.Present embodiment utilizes the characteristic of the 3 moment heat conduction of superconducting heat pipe and two ends isothermal (being similar to), with the waste heat of boiler flue (about 160 degree～200 degree) through the superconductor fission of heating, transient absorption is also conducted flue gas heat, rapid conduction through superconducting heat pipe 3, cold water in the equipment is heated up rapidly, reach the temperature of design.This equipment can be widely used in combustion gas, oil burning boiler and vertical, horizontal coal-fired boiler, and other utilizes the device of waste heat recovery.
As shown in Figure 7, embodiment 3 is water-gas type heat exchanger, for the special-purpose waste heat recovery apparatus of condensed water, is installed in the drain valve back, reclaims the heat in the condensed water, makes cold air moment intensification, carries continuously by blower fan and stablizes hot blast, plays the effects such as oven dry, heating.Its structure is: comprise upper channel 1, lower channel 2 and heat pipe 3, upper channel 1 is the air channel.As shown by arrows in FIG., described upper channel 1 right-hand member has the import of entrance 11(cold wind), left end has outlet 12(hot-blast outlet), the entrance 21 of lower channel 2 and outlet 22 directions are opposite with described upper channel 1, left end is that entrance 21(connects drain valve), right-hand member is outlet 22(discharge outlet); There is central dividing plate 4 to separate between described upper channel 1 and the lower channel 2; Described heat pipe 3 runs through central dividing plate 4, and a part is in upper channel 1, and another part is in lower channel 2; Described heat pipe 3 inwalls have anticorrosion coated layer; In the described heat pipe 3 heat-conducting medium is arranged, described heat-conducting medium is the inorganic compound superconduct heat media.Described heat pipe 3 is many, and heat pipe 3 shells are the chrome molybdenum shell.During work, make solidifying coolant-temperature gage drop to 60 ℃ by 100 ℃, send 50 ~-60 ℃ hot blast, increase economic efficiency significantly.
As shown in Figure 8, embodiment 4 is vapour-water type heat exchanger, and being connected on the jet chimney is to heat rapidly domestic water or industrial water with steam.Its structure is: comprise upper channel 1, lower channel 2 and heat pipe 3, upper channel 1 is water tank.As shown in Figure 8, described upper channel 1 right-hand member has entrance 11(cooling water inlet), left end has outlet 12(hot water outlet), the entrance 21 of lower channel 2 and outlet 22 directions are opposite with described upper channel 1, left end is that entrance 21(steam advances), right-hand member connects delivery valve for outlet 22(); There is central dividing plate 4 to separate between described upper channel 1 and the lower channel 2; Described heat pipe 3 runs through central dividing plate 4, and a part is in upper channel 1, and another part is in lower channel 2; Described heat pipe 3 inwalls have anticorrosion coated layer; In the described heat pipe 3 heat-conducting medium is arranged, described heat-conducting medium is the inorganic compound superconduct heat media.Described heat pipe 3 is many, and heat pipe 3 shells are the chrome molybdenum shell.During work, steam washes away heat pipe 3 lower ends through lower channel 2, after heat pipe 3 is heated heat is passed to the upper end water is heated.
Need to prove; particular of the present utility model is described in detail the utility model; for a person skilled in the art, in the various apparent change of in the situation that does not deviate from spirit and scope of the present utility model it being carried out all within protection domain of the present utility model.
Claims (4)
1. anti-rotten efficient waste heat recover, it is characterized in that: comprise upper channel, lower channel and heat pipe, described upper channel one end has entrance, and the other end has outlet, the entrance and exit direction of lower channel and described upper channel opposite direction; There is central dividing plate to separate between described upper channel and the lower channel; Described heat pipe runs through central dividing plate, and a part is in upper channel, and another part is in lower channel; Described heat pipe inwall has anticorrosion coated layer; In the described heat pipe heat-conducting medium is arranged.
2. anti-rotten efficient waste heat recover according to claim 1 is characterized in that described heat pipe shell is the alloy material shell.
3. anti-rotten efficient waste heat recover according to claim 1 is characterized in that described heat pipe is many.
4. anti-rotten efficient waste heat recover according to claim 3 is characterized in that described heat pipe is full finned tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220650205 CN202902950U (en) | 2012-12-02 | 2012-12-02 | Anticorrosion high-efficient waste heat recovery device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220650205 CN202902950U (en) | 2012-12-02 | 2012-12-02 | Anticorrosion high-efficient waste heat recovery device |
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| CN202902950U true CN202902950U (en) | 2013-04-24 |
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| CN 201220650205 Expired - Fee Related CN202902950U (en) | 2012-12-02 | 2012-12-02 | Anticorrosion high-efficient waste heat recovery device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822512A (en) * | 2013-12-03 | 2014-05-28 | 天津华能北方热力设备有限公司 | Heat-pipe type multimedia gas heating apparatus |
| CN104864754A (en) * | 2015-06-03 | 2015-08-26 | 韦华全 | Heat pipe type heat energy recovery device |
| CN105042622A (en) * | 2015-07-31 | 2015-11-11 | 北京建筑大学 | Air preheater based one air-water heat exchange |
| CN112129129A (en) * | 2020-09-24 | 2020-12-25 | 北京七星华创集成电路装备有限公司 | Heat exchange device and waste heat recovery equipment |
-
2012
- 2012-12-02 CN CN 201220650205 patent/CN202902950U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822512A (en) * | 2013-12-03 | 2014-05-28 | 天津华能北方热力设备有限公司 | Heat-pipe type multimedia gas heating apparatus |
| CN104864754A (en) * | 2015-06-03 | 2015-08-26 | 韦华全 | Heat pipe type heat energy recovery device |
| CN105042622A (en) * | 2015-07-31 | 2015-11-11 | 北京建筑大学 | Air preheater based one air-water heat exchange |
| CN112129129A (en) * | 2020-09-24 | 2020-12-25 | 北京七星华创集成电路装备有限公司 | Heat exchange device and waste heat recovery equipment |
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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: 20130424 Termination date: 20151202 |
|
| EXPY | Termination of patent right or utility model |