CN101324406A - Uniform heat exchange energy saving equipment - Google Patents
Uniform heat exchange energy saving equipment Download PDFInfo
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- CN101324406A CN101324406A CNA2008101409405A CN200810140940A CN101324406A CN 101324406 A CN101324406 A CN 101324406A CN A2008101409405 A CNA2008101409405 A CN A2008101409405A CN 200810140940 A CN200810140940 A CN 200810140940A CN 101324406 A CN101324406 A CN 101324406A
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Abstract
The invention discloses a uniform heat exchange energy saver, which comprises a housing and a heat exchange coil pack arranged in the housing, wherein the housing includes a flue inlet and a flue outlet; the heat exchange coil pack includes an upper and a lower heat exchange coils arranged horizontally; the water inlets of different heat exchange coils are arranged on the different ends on the same side of the housing; and the water outlets are arranged on the diagonal ends of respective water inlets on the other side of the housing. The uniform heat exchange energy saver can achieve uniform heat exchange, improve waste heat recovery efficiency and improve the economic benefit.
Description
Technical field
The present invention relates to the Waste Heat Recovery technical field, especially a kind of uniform heat exchange energy saving equipment.
Background technology
Many devices that need to discharge used heat are arranged in the industrial equipment, just need be as boiler from the higher flue gas of discharge flue discharge temperature.Have more heat energy in this used heat, for recycling these used heat, existing energy saver such as economizer etc. have following common ground: 1, be installed on the used heat passage.2, inside is provided with the heat exchanging water pipe road.When the carrier of used heat such as boiler smoke etc. are flowed through energy saver,, thereby can supply with needs with hot cell with the heating of the water in the heat exchanging water pipe road.The heat exchanging water pipe road that the heat exchange water inlet of these energy savers is all flowed through single, promptly the path of heat exchange current warp is unique.Along with flowing of heat exchange water, constantly carry out heat exchange between heat exchange water and spent heat-carrier, the temperature of heat exchange water is raise; Heat exchange coolant-temperature gage near heat exchanging water pipe road water inlet is lower, and higher near the heat exchange coolant-temperature gage of heat exchanging water pipe road delivery port, this also causes the efficient of heat exchange everywhere also different.Can not realize uniform heat exchange, reduce the efficient of heat exchange on the whole, limit the energy-saving effect of existing energy saver.In addition, the pressure of heat exchange water all is higher than the internal pressure with hot cell such as boiler etc. in the existing energy saver, so that can be to supplying water with hot cell.Pressure is higher to have brought potential safety hazard to energy saver.At last, the control of boiler smoke exhaust gas temperature is improper, causes exhaust gas temperature low excessively, in the steam generator system that boiler induced-draft fan is not set, is unfavorable for the boiler tail flue gas discharging again, even influences boiler operatiopn.In general boiler design, for ensureing the boiler tail flue gas discharging, avoid condensed water to produce that the ratio that the boiler tail flue gas exhaust gas temperature is often set is higher, carries a large amount of heat energy, causes energy waste, contaminated environment.
Summary of the invention
Technical problem to be solved by this invention provides a kind of uniform heat exchange energy saving equipment, can realize uniform heat exchange, improves the utilization ratio that energy-saving appliance reclaims used heat.
For solving the problems of the technologies described above, uniform heat exchange energy saving equipment of the present invention comprises housing and is positioned at the heat exchange coil group of housing, housing comprises flue entrance and flue outlet, described heat exchange coil group comprises two horizontally disposed heat exchange coils up and down, and different ends and its delivery port that the water inlet of various heat exchange coil pipe is positioned at housing the same side are positioned at the housing opposite side end, diagonal angle of water inlet separately.
As a kind of improvement of the present invention, be provided with " U " type water inlet collection case at the housing vertical direction of described heat exchange coil water inlet one side, be provided with " U " type water outlet collection case with the relative housing opposite side of " U " type water inlet collection case; Described heat exchange coil group has many groups, and the heat exchange coil of each heat exchange coil group level in the vertical is arranged alternately and is crisscross arranged in the horizontal.
As a further improvement on the present invention, this uniform heat exchange energy saving equipment also includes automatic control system, automatic control system comprises the electrical control actuating unit, is located at the temperature sensor of exhaust opening, electric control valve, electric control valve is located on the pipeline that is connected with heat exchange water delivery port, electrical control actuating unit and temperature sensor and electric control valve control connection.
As a further improvement on the present invention, each water inlet pipe of this uniform heat exchange energy saving equipment and heat exchange coil are normal pressure equipment.
As a further improvement on the present invention, link to each other with housing and to be horizontally arranged with fume inlet passage, this uniform heat exchange energy saving equipment also includes drainage arrangement, drainage arrangement comprises dash projection, " U " shape fluid-tight device and the rhone that matches with the dash projection, the fixedly connected dash projection in the top of fume inlet passage, rhone are positioned at the bottom of dash projection below fume inlet passage; The bottom land of rhone is connected with the water inlet end of " U " shape fluid-tight device.
Adopt structure of the present invention, the entery and delivery port diagonal angle of same heat exchange coil is provided with, this heat exchange coil will cover the whole cross section of uniform heat exchange energy saving equipment, prolonged heat exchange coil tube side, increased the flowing time of heat exchange water in coil pipe, thereby make flue gas and the abundant heat exchange of each heat exchange coil by energy-saving appliance.Flue gas is by the coil pipe below the heat exchange coil group time, the heat exchange water that the flue gas of close coil pipe water inlet one side and temperature are lower carries out heat exchange, its temperature reduces more, and the higher heat exchange water of the flue gas of close coil pipe delivery port one side and temperature carries out heat exchange, and its temperature reduces less.Flue gas is the coil pipe by heat exchange coil group top then, and temperature reduces more side flue gas this moment and then carries out heat exchange with heat exchange water near the coil pipe delivery port during by a last coil pipe, and its temperature reduces less; Temperature reduces less side flue gas this moment and then carries out heat exchange with heat exchange water near the coil pipe water inlet during by a last coil pipe, and its temperature reduces more.Like this, the flue gas at vertical diverse location place, its temperature drop is basic identical behind two heat exchange coils of process heat exchange coil group, has therefore realized uniform heat exchange better, has improved whole heat exchange efficiency.
The heat exchange coil group has many groups, the heat exchange coil of each heat exchange coil group level in the vertical is arranged alternately and is crisscross arranged in the horizontal, make in the flue when flue gas is flowed through up and down staggered heat exchange coil, the flue gas disturbance, being serpentine flows out, increase the holdup time of flue gas in energy-saving appliance, all even heat exchange coil group is carried out heat exchange, further prevented the uneven in temperature even of energy-saving appliance discharge flue gas one side of the present invention and opposite side, prolonged the heat-exchange time of flue gas and heat exchange water, made flue gas and the heat exchange more fully of heat exchange water.
Being arranged on of automatic control system guaranteed that the substantially invariable while of exhaust gas temperature need not manual operation, uses very conveniently, the too high energy dissipation phenomenon of bringing of exhaust gas temperature can not occur, also avoided the low excessively too much phenomenon of condensed water that causes of exhaust gas temperature.
Each water inlet pipe and the heat exchange coil of this uniform heat exchange energy saving equipment are normal pressure equipment, the potential safety hazard that can avoid high pressure to cause when not influencing use.When needs are used hot cell with heat exchange water supply pressure, can deliver to the pressure hot cell after with heat exchange water water outlet supercharging by booster water pump.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of heat exchange coil of the present invention;
Fig. 3 is the schematic cross-section that flue gas of the present invention vertically flows in housing;
Fig. 4 is the structural representation of second kind of set-up mode of dash projection of the present invention;
Fig. 5 is the structural representation of the third set-up mode of dash projection of the present invention.
The specific embodiment
As shown in Figure 1 to Figure 3, uniform heat exchange energy saving equipment of the present invention comprises housing 8, condensed water drainage arrangement 1 (condensate drain 1 comprises bar shaped dash projection 1d, rhone 1c, the draining valve 1b, " U " shape fluid-tight device 1a and the drainpipe 1e that match with dash projection 1d), fume inlet passage 2 and is arranged on the interior heat exchange water system of housing 8, housing 8 bottoms are provided with import dilatation flue 6, housing 8 upper ends are provided with outlet shrinkage flue 10, and outlet shrinkage flue 10 is fixedly connected with outlet shrinkage flue flange 11.The import dilatation flue 6 of fume inlet passage 2 horizontally sets and one end and housing 8 bottoms fixedly is communicated with by dilatation flange 5, and the end that fume inlet passage 2 is communicated with housing 8 is higher than its other end.Housing 8 bottoms also are provided with heat exchange water inlet 30, and the housing upper end also is provided with heat exchange delivery port 31.Heat exchange water inlet 30, heat exchange delivery port 31 are communicated with " U " type water inlet collection case 7 and " U " type water outlet collection case 14 respectively.External power water pump 23 is connected with heat exchange water water inlet 30 by energy-saving appliance water inlet pipe 22, and energy-saving appliance water inlet pipe 22 is provided with valve 3.Energy-saving appliance outlet pipe 19 is connected with heat exchange water delivery port 31, is provided with outlet valve 18, air bleeding valve 16 and safety valve 15 on energy-saving appliance outlet pipe 19.
As Fig. 1, Fig. 2 and shown in Figure 3, the heat exchange water system comprises heat exchange coil group 9a, 9b, " U " type water inlet collection case 7 that is connected with heat exchange water water inlet 30, " U " type water outlet collection case 14 that is connected with heat exchange water delivery port 31." U " type water inlet collection case 7 includes coil pipe water inlet pipe 7a, the 7b of vertical setting, and " U " type water outlet collection case 14 comprises coil pipe outlet pipe 14a, the 14b of vertical setting.Wherein, heat exchange coil group 9a, 9b have included two horizontally disposed heat exchange coils up and down.The coil pipe first water inlet pipe 7a vertically is arranged on the front end of housing 8 one sides, the coil pipe first outlet pipe 14a correspondingly vertically is arranged on the rear end of housing 8 opposite sides, the coil pipe first water inlet pipe 7a is connected with the coil pipe first outlet pipe 14a by the below coil pipe among heat exchange coil group 9a, the 9b, and described heat exchange coil group 9a, 9b vertically evenly are provided with along housing 8.The rear end of the coil pipe first water inlet pipe 7a homonymy also is provided with the coil pipe second water inlet pipe 7b that is connected with water inlet 30, the front end of the first outlet pipe 14a homonymy also is provided with the coil pipe second outlet pipe 14b that is connected with delivery port 31, the coil pipe first water inlet pipe 7a is connected with the coil pipe first outlet pipe 14a by the below coil pipe among heat exchange coil group 9a, the 9b, and the coil pipe second water inlet pipe 7b is connected with the coil pipe second outlet pipe 14b by the top coil pipe among heat exchange coil group 9a, the 9b.As depicted in figs. 1 and 2, heat exchange coil group 9a, 9b composition coil pipe separately alternately is horizontally disposed with in the vertical and is crisscross arranged in the horizontal.Adopt the heat exchange water system of this form, heat exchange water housing inner opposite angle turnover, heat exchange coil group 9a, 9b all be many backhauls setting and vertically, transversely replace, be staggered, prolonged heat exchange coil tube side, increased the flowing time of heat exchange water in coil pipe, make evenly fully heat exchange between heat exchange water and the flue gas, prevent the uneven in temperature even of uniform heat exchange energy saving equipment discharge flue gas one side of the present invention and opposite side, prevented the uneven phenomenon of heat exchange between the interior different parts of housing.As shown in Figure 1, flue gas flow through successively fume inlet passage 2, import dilatation flue 6, housing 8, shrinkage flue 10, dilatation when flue gas is flowed through housing 8, flue gas flow rate descends, and increases holdup time and the heat exchange coil group of flue gas in energy-saving appliance and carries out abundant heat exchange; As shown in Figure 3, when flue gas was flowed through up and down staggered heat exchange coil group in the flue, the flue gas disturbance was serpentine and flows out, and this has also increased holdup time and the heat exchange coil group of flue gas in energy-saving appliance and has carried out abundant heat exchange.Certainly, as shown in Figure 3, the heat exchange coil group can be provided with many groups as required.
As shown in Figure 1, the condensed water drainage arrangement comprises dash projection 1d, rhone 1c, the draining valve 1b, " U " shape fluid-tight device 1a and the drainpipe 1e that match with dash projection 1d.The upper flue face of fume inlet passage 2 entrance point lateral arrangement sections is the plane, its sideline, cross section, this upper edge, plane fixedly connected dash projection 1d, and dash projection 1d outer rim cross section is less than its root section; Rhone 1c be positioned at dash projection 1d away from a side of housing 8 and its notch opening at the bottom of fume inlet passage 2 lowest part; The bottom land of rhone 1c is connected with the water inlet end of " U " shape fluid-tight device 1a, and the water side of " U " shape fluid-tight device 1a is connected with drainpipe 1e, and drainpipe 1e is provided with draining valve 1b.Wherein, the pipeline of " U " shape fluid-tight device 1a water side one side is a telescoping tube, also can be flexible hose, so just can adjust the height of " U " shape fluid-tight device 1a water side with respect to its water inlet end as required.Utilize flue internal pressure and CD section head of liquid sum to equal the principle of atmospheric pressure and AB section head of liquid sum, when in case CD section fluid column raises, flue internal pressure and CD section head of liquid sum are greater than atmospheric pressure and AB section head of liquid sum, condensed water is discharged from condensed water vent valves 1b automatically, remain " U " type condensed water discharging fluid-tight device 1a and be full of condensed water, guarantee the seal of smoke evacuation.The set-up mode of described dash projection can have three kinds: 1. as shown in Figure 1 at the fume inlet passage top along extending setting aspect the cross section downwards; As shown in Figure 4 fume inlet passage top slope break and the slope break place form along the fume inlet passage top cross-section wedge angle under the dash projection.As shown in Figure 5 fume inlet passage top slope break and the slope break place form along the fume inlet passage top cross-section convex arc surface under the dash projection.
This uniform heat exchange energy saving equipment also includes automatic control system as shown in Figure 1, automatic control system comprises electrical control actuating unit 13, is located at temperature sensor 12, electric control valve 17 on the outlet shrinkage flue 10, and electric control valve 17 is located on the energy-saving appliance outlet pipe 19.Electrical control actuating unit 13 also compares the temperature value of this temperature and setting by the temperature signal that signal line receives temperature sensor 12, and, the exhanst gas outlet temperature is maintained within the exhanst gas outlet temperature range of setting all the time according to the open degree of the difference of two temperature control electric control valve 17.
Uniform heat exchange energy saving equipment of the present invention is installed on the boiler tail high temperature exit flue, dock with flue flange 21, flue flange 21, flue 2, import dilatation flue flange 5, import dilatation flue 6, housing 8, outlet shrinkage flue 10, outlet shrinkage flue flange 11 link to each other successively, form the smoke evacuation system of uniform heat exchange energy saving equipment of the present invention.
Each parts of this uniform heat exchange energy saving equipment all adopt resistant material.Each water inlet pipe and water outlet pipe of energy-saving appliance and each heat exchange coil group are normal pressure equipment, therefore the potential safety hazard that can avoid high pressure to cause when not influencing use.When needs are used hot cell with heat exchange water supply pressure, can deliver to the pressure hot cell after with heat exchange water water outlet supercharging by booster water pump.During use, power water pump 23 is done power, normal-temperature water is by water inlet pipe 22, after inlet valve 3 enters energy-saving appliance, enter coil pipe water inlet pipe 7a and coil pipe water inlet pipe 7b respectively, more respectively through heat exchange coil group 9a and 9b and with the abundant heat exchange of high-temperature flue gas after enter coil pipe outlet pipe 14a, 14b, be pooled to the delivery port 31 of " U " type water outlet collection case, by electric control valve 17 regulating pondages, flow out the supply hot cell through flowing water Valve 18 and outlet pipe 19.On the water inlet pipe 22 near " U " type water inlet collection case 7 sides blowoff valve 4 is housed, is convenient to bleed off the tube side water of energy-saving appliance during maintenance; Energy-saving appliance water inlet pipe 22 of the present invention is connected a by-pass line with 19 of outlet pipes, bypath valve 20 is installed, when abnormal conditions appear in energy-saving appliance of the present invention, closes inlet valve 3 and flowing water Valve 18, water circuit system can guarantee to use the hot cell water by bypath valve 20 temporarily." U " type water outlet collection case 14 ports of export of this energy-saving appliance are equipped with safety valve 15, air bleeding valve 16, when water circuit system pressure surpasses safety valve 15 setting pressures, safety valve 15 is opened release automatically, can guarantee that energy-saving appliance water circuit system pressure of the present invention is no more than setting pressure, guarantees energy-saving appliance safe operation of the present invention.During the too high generation vaporization phenomenon of the water circuit system tube side water pneumatosis of energy-saving appliance of the present invention or water temperature, can discharge automatically, guarantee water circuit system water-in and water-out smoothness, prevent the stifled generation with water attack of gas by air bleeding valve 16.
Certainly, the present invention includes but be not limited to present embodiment, as import dilatation flue flange 5, import dilatation flue 6, outlet shrinkage flue 10, outlet shrinkage flue flange 11, install, do not influence under the situation of technology in convenient transportation, can change shape and relative position according to reality; Uniform heat exchange energy saving equipment of the present invention can vertically be connected on the flue as shown in Figure 1, also can level be connected on the flue.Housing 8 dilatation volumes and flue gas area of passage bonded boiler afterbody high temperature smoke evacuation situation are adjusted and are appraised and decided, and adopt different numerical value according to different situations.In addition, this uniform heat exchange energy saving equipment also can be installed on the passage of other spent heat-carriers outside the boiler exhaust gas passage.Above-mentioned conversion all drops within protection scope of the present invention.Every on basis of the present invention further improved plan, all being considered as is the scope that the present invention asks for protection.
Claims (5)
1. uniform heat exchange energy saving equipment, comprise housing and the heat exchange coil group that is positioned at housing, housing comprises flue entrance and flue outlet, it is characterized in that: described heat exchange coil group comprises two horizontally disposed heat exchange coils up and down, and different ends and its delivery port that the water inlet of various heat exchange coil pipe is positioned at housing the same side are positioned at the housing opposite side end, diagonal angle of water inlet separately.
2. uniform heat exchange energy saving equipment according to claim 1, it is characterized in that: the housing vertical direction in described heat exchange coil water inlet one side is provided with " U " type water inlet collection case, is provided with " U " type water outlet collection case with the relative housing opposite side of " U " type water inlet collection case; Described heat exchange coil group has many groups, and the heat exchange coil of each heat exchange coil group level in the vertical is arranged alternately and is crisscross arranged in the horizontal.
3. according to the uniform heat exchange energy saving equipment described in claim 1 or 2, it is characterized in that: this uniform heat exchange energy saving equipment also includes automatic control system, automatic control system comprises the electrical control actuating unit, is located at the temperature sensor of exhaust opening, electric control valve, electric control valve is located on the pipeline that is connected with heat exchange water delivery port, electrical control actuating unit and temperature sensor and electric control valve control connection.
4. uniform heat exchange energy saving equipment according to claim 3 is characterized in that: each water inlet pipe and the heat exchange coil of this uniform heat exchange energy saving equipment are normal pressure equipment.
5. uniform heat exchange energy saving equipment according to claim 4, it is characterized in that: linking to each other with housing is horizontally arranged with fume inlet passage, this uniform heat exchange energy saving equipment also includes drainage arrangement, drainage arrangement comprises dash projection, " U " shape fluid-tight device and the rhone that matches with the dash projection, the top of fume inlet passage is provided with the dash projection, and rhone is positioned at the bottom of dash projection below fume inlet passage; The bottom land of rhone is connected with the water inlet end of " U " shape fluid-tight device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101409405A CN101324406A (en) | 2008-08-06 | 2008-08-06 | Uniform heat exchange energy saving equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008101409405A CN101324406A (en) | 2008-08-06 | 2008-08-06 | Uniform heat exchange energy saving equipment |
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| CN101324406A true CN101324406A (en) | 2008-12-17 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880283A (en) * | 2015-05-28 | 2015-09-02 | 江苏嘉德宏益环保节能科技有限公司 | Flue energy transducer fault detection device and method |
| CN109186285A (en) * | 2018-09-12 | 2019-01-11 | 浙江特富锅炉有限公司 | Coal dust energy-saving appliance |
| CN109696057A (en) * | 2017-10-23 | 2019-04-30 | 中国瑞林工程技术有限公司 | Heat-exchanger rig and water cooling smelting furnace with it |
| JP2020153490A (en) * | 2019-03-22 | 2020-09-24 | 三菱日立パワーシステムズ株式会社 | Pipe penetration structure of damper device |
| CN111892025A (en) * | 2020-08-04 | 2020-11-06 | 四川久源机械制造有限公司 | Ammonia oxidation furnace for producing nitric acid by normal pressure method and process method thereof |
| CN114251879A (en) * | 2020-09-25 | 2022-03-29 | 北京市京科伦工程设计研究院有限公司 | Three-dimensional distributed liquid atomization heat exchanger, control method, refrigeration system and air conditioner |
-
2008
- 2008-08-06 CN CNA2008101409405A patent/CN101324406A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880283A (en) * | 2015-05-28 | 2015-09-02 | 江苏嘉德宏益环保节能科技有限公司 | Flue energy transducer fault detection device and method |
| CN104880283B (en) * | 2015-05-28 | 2018-06-15 | 广州万粤知识产权运营有限公司 | A kind of flue energy converter failure detector and method |
| CN109696057A (en) * | 2017-10-23 | 2019-04-30 | 中国瑞林工程技术有限公司 | Heat-exchanger rig and water cooling smelting furnace with it |
| CN109186285A (en) * | 2018-09-12 | 2019-01-11 | 浙江特富锅炉有限公司 | Coal dust energy-saving appliance |
| JP2020153490A (en) * | 2019-03-22 | 2020-09-24 | 三菱日立パワーシステムズ株式会社 | Pipe penetration structure of damper device |
| JP7237676B2 (en) | 2019-03-22 | 2023-03-13 | 三菱重工業株式会社 | Pipe penetration structure of damper device |
| CN111892025A (en) * | 2020-08-04 | 2020-11-06 | 四川久源机械制造有限公司 | Ammonia oxidation furnace for producing nitric acid by normal pressure method and process method thereof |
| CN114251879A (en) * | 2020-09-25 | 2022-03-29 | 北京市京科伦工程设计研究院有限公司 | Three-dimensional distributed liquid atomization heat exchanger, control method, refrigeration system and air conditioner |
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Open date: 20081217 |