CN201680745U - Horizontal combined phase-change heat exchanger - Google Patents
Horizontal combined phase-change heat exchanger Download PDFInfo
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- CN201680745U CN201680745U CN2010201928607U CN201020192860U CN201680745U CN 201680745 U CN201680745 U CN 201680745U CN 2010201928607 U CN2010201928607 U CN 2010201928607U CN 201020192860 U CN201020192860 U CN 201020192860U CN 201680745 U CN201680745 U CN 201680745U
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Abstract
The utility model discloses a horizontal combined phase-change heat exchanger, which is difficult for acid dew corrosion, small in occupied space and high in heat exchanging efficiency. The horizontal combined phase-change heat exchanger comprises a plurality of layers and a plurality of lines of heat exchanging units, an endothermic medium input device and an endothermic medium output device are respectively arranged at two ends of each heat exchanging unit including a heat exchanging inner tube (12) and a heat exchanging outer tube (11) sleeved outside the heat exchanging inner tube (12), two ends of each heat exchanging outer tube (11) are sealed, an upper communicating tube (15) and a lower communicating tube (16) are respectively arranged on the upper portion and the lower portion of each heat exchanging outer tube (11), an upper communicating horizontal tube (151) is connected with the upper communicating tubes (15) of the heat exchanging outer tubes (11) of the first-layer heat exchanging units, a lower communicating horizontal tube (161) is connected with the lower communicating tubes (16) of the heat exchanging outer tubes (11) of the bottom-layer heat exchanging units, and two ends of each heat exchanging inner tube (12) are respectively connected with the endothermic medium input device and the endothermic medium output device. The horizontal combined phase-change heat exchanger is applied to the field of heat exchangers.
Description
Technical field
The utility model relates to a kind of heat recovery equipment, is specifically related to a kind of horizontal combined phase change heat exchanger.
Background technology
Known from institute, burning boiler is very extensive in the application of industry, the part heat that boiler combustion produced can be discharged by flue gas, thereby cause the loss of energy, for avoiding energy to run off in vain, the heat-exchanger rig (or claiming heat reclamation device) of boiler tail has appearred being installed on the market in succession, common heat-exchanger rig has air preheater at present, the heat that runs off with flue gas when low-pressure coal saver etc. are used for the recovery boiler burning, but thereby the corrosion of acid dew in use often often takes place because of the metallic walls surface temperature is lower than flue gas acid dew point in the existing conventional heat-exchanger rig, cause equipment impaired, service life is short, take place for fear of this type of phenomenon, it is cost that people usually lose a large amount of heat energy with the raising exhaust gas temperature, exchanges device security for.However, under boiler load variation, climate change, the variation of fuel sulfur or the like situation, still exist acid to reveal the danger of corrosion, and energy recovery ability is lower; In addition, existing heat reclamation device is because volume is comparatively huge, and big, installation underaction therefore takes up room.
How reducing heat-energy losses and improve boiler thermal output, avoid acid to reveal corrosion simultaneously, is the present boiler energy-saving emission-reduction focal issue that everybody pays close attention to.In sum, existing phase-change heat-exchanger exists easily generation acid to reveal the technological deficiency that burn into is bulky, heat exchange efficiency is lower.
The utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, and a kind of difficult horizontal combination heat exchanger that acid dew burn into takes up room little, that heat exchange efficiency is high that takes place is provided.
The technical scheme that the utility model adopted is: the utility model comprises the heat exchange unit of some permutation and combination, described heat exchange unit is divided into several layers and some row, described heat exchange unit two ends are respectively equipped with heat-absorbing medium input unit and heat-absorbing medium output device, described heat exchange unit comprises the heat exchange outer tube, pipe in the heat exchange, described heat exchange outer tube sleeve is managed outside in described heat exchange, described heat exchange outer tube is sealed at both ends, make between interior pipe of described heat exchange and the heat exchange outer tube and form closed cavity, be the working medium cavity, described heat exchange outer tube top and the bottom are provided with communicating pipe and lower communicating tube respectively, connect by last communicating pipe and lower communicating tube between the heat exchange outer tube of the described heat exchange unit of heat exchange outer tube and lower floor of the described heat exchange unit in upper strata, the described lower communicating tube of described heat exchange outer tube bottom feeds described heat exchange outer tube inside, make described lower communicating tube at described heat exchange outer tube internal protrusion certain altitude, determine the liquid level of described heat exchange outer tube inside with this, being connected with last communicating pipe of the heat exchange outer tube top of the described heat exchange unit of the first floor is communicated with horizontal tube, the lower communicating tube of the heat exchange outer tube bottom of bottom heat exchange unit is connected with down the connection horizontal tube, and the two ends of pipe are connected with described heat-absorbing medium input unit and described heat-absorbing medium output device respectively in the described heat exchange.
Described heat-absorbing medium input unit comprises water inlet manifold, described water inlet manifold is arranged with some water inlet sparge pipes, described heat-absorbing medium output device comprises outfall sewer, described outfall sewer is arranged with some water outlet sparge pipes, and the pipe two ends are connected with described water inlet sparge pipe, water outlet sparge pipe respectively in the heat exchange of described heat exchange unit.Described horizontal combined phase change heat exchanger also comprises self-con-tained unit, described water inlet manifold is provided with control valve, described control valve is used to regulate the inflow of described water inlet manifold, described heat exchange outer tube is provided with temperature detection device, described temperature detection device is used to survey the temperature on the described heat exchange outer tube, and the described self-con-tained unit of described control valve and described temperature detection device is electrically connected.
Described heat-absorbing medium input unit comprises inlet air door, air inlet tube sheet, airduct, described air inlet tube sheet is provided with some air admission holes, described inlet air door communicates with described air admission hole by described airduct, described heat-absorbing medium output device comprises discharge pipe, the tube sheet of giving vent to anger, the described tube sheet of giving vent to anger is provided with some ventholes, described discharge pipe communicates with described venthole, and the pipe two ends are connected with described air admission hole, venthole respectively in the heat exchange of described heat exchange unit.Described horizontal combined phase change heat exchanger also comprises self-con-tained unit, described heat exchange outer tube is provided with temperature detection device, be used to survey the temperature of described heat exchange outer tube, can regulate the size of intake by described inlet air door, described inlet air door and described temperature detection device are electrically connected with described self-con-tained unit.
The outer tube outer surface of described heat exchange is provided with the outer tube fin, pipe fin in described heat exchange inner tube outer surface is provided with, and described outer tube fin and interior pipe fin are used to increase heat exchange area, to improve heat exchanger effectiveness.
Pipe is pipe or elliptical tube in described heat exchange outer tube, the heat exchange.
The described connection horizontal tube end of going up is provided with working medium liquid-filling valve, air bleeding valve.Described connection horizontal tube end down is provided with the Overflow drainage valve.
In the described heat exchange unit of same row, what the heat exchange outer tube of the described heat exchange unit of the superiors connected was provided with switch valve last communicating pipe, and the lower communicating tube that the heat exchange outer tube of orlop heat exchange unit connects is provided with down switch valve, can be to described heat exchange unit apportion control.
The beneficial effects of the utility model are: the utility model utilizes the heat exchange unit of some permutation and combination to carry out boiler hot and reclaims, described heat exchange unit is divided into several layers and some row, the heat that boiler smoke is carried secretly exchanges recovery layer by layer, thereby can be fully, efficiently to the heat recovery and utilization of boiler smoke, in the process of heat recovery, the temperature of described heat exchange unit is balanced, thereby the wall surface temperature of described heat exchange unit is higher than flue gas acid dew point avoids taking place the corrosion of acid dew, the service life of effectively improving heat exchanger; Compact conformation of the present utility model is reasonable, installs when using, and institute takes up space less, makes things convenient for installation and maintenance, and not limited by the installation site, can install at vertical gas pass or horizontal flue, and floor space is little; Heating heat absorption stroke is short, and efficient phase-change heat-exchange can solve the problem of recuperation of heat and acid corrosion effectively.
The utility model can be under the situation of not blowing out, can be communicated with horizontal tube and discharges rapidly in the phase transition process because of the on-condensible gas that impurity produced by described going up, and on-condensible gas then makes the phase-change heat-exchange function of heat exchange unit regenerate rapidly after discharging; In the utility model, connect by described last communicating pipe and lower communicating tube between the heat exchange outer tube of the described heat exchange unit of heat exchange outer tube and lower floor of the described heat exchange unit in upper strata, therefore, heat in the heat exchange unit of lower floor can be to the heat exchange unit circulation on upper strata, make each layer heat exchange unit wall surface temperature uniformity, can tackle acid calmly and reveal corrosion.
Description of drawings
Fig. 1 is the front view of the utility model embodiment one;
Fig. 2 is the side view of the utility model embodiment one;
Fig. 3 is the vertical view of the utility model embodiment one;
Fig. 4 is the front view of the utility model embodiment two;
Fig. 5 is the side view of the utility model embodiment two;
Fig. 6 is the vertical view of the utility model embodiment two;
Fig. 7 is the structure cutaway view of heat exchange unit described in the utility model;
Fig. 8 is the A-A cutaway view of the utility model Fig. 7.
The specific embodiment
Embodiment one:
As shown in Figure 1, the utility model comprises the heat exchange unit of some permutation and combination, described heat exchange unit is divided into several layers and some row, described heat exchange unit can be staggered in vertical direction, described heat exchange unit two ends are respectively equipped with heat-absorbing medium input unit and heat-absorbing medium output device, described heat exchange unit comprises heat exchange outer tube 11, pipe 12 in the heat exchange, described heat exchange outer tube 11, pipe 12 is pipe or elliptical tube in the heat exchange, described heat exchange outer tube 11 is enclosed within pipe 12 outsides in the heat exchange, described heat exchange outer tube 11 is sealed at both ends, make between interior pipe 12 of described heat exchange and the described heat exchange outer tube 11 and form closed cavity, be the working medium cavity, present embodiment adopts water as heat-exchange working medium, described heat exchange outer tube 11 outer surfaces are provided with outer tube fin 13, pipe fin 14 in the interior pipe of described heat exchange 12 outer surfaces are provided with utilizes described outer tube fin 13 and interior pipe fin 14 to increase heat exchange areas, to improve heat exchanger effectiveness; Described heat exchange outer tube 11 top and the bottom are provided with communicating pipe 15 and lower communicating tube 16 respectively, connect by described last communicating pipe 15 and lower communicating tube 16 between the heat exchange outer tube 11 of the described heat exchange unit of heat exchange outer tube 11 and lower floor of the described heat exchange unit in upper strata, the described lower communicating tube 16 of described heat exchange outer tube 11 bottoms feeds described heat exchange outer tube 11 inside, make described lower communicating tube 16 at described heat exchange outer tube 11 internal protrusion certain altitudes, determine the liquid level of described heat exchange outer tube 11 inside with this; Being connected with last communicating pipe 15 of heat exchange outer tube 11 tops of first floor heat exchange unit is communicated with horizontal tube 151, be communicated with horizontal tube 151 and last communicating pipe 15 in described heat exchange outer tube 11, injected a certain amount of working medium by described going up, because of described lower communicating tube 16 is passed into described heat exchange outer tube 11 inner certain altitudes, when the working medium in the cavity exceeds the top of described lower communicating tube 16, produce overflow and flow in the heat exchange outer tube 11 of described heat exchange unit of lower floor, described connection horizontal tube 151 ends of going up are provided with working medium liquid-filling valve 152, air bleeding valve 153, pressure vacuum gauge, the lower communicating tube 16 of heat exchange outer tube 11 bottoms of bottom heat exchange unit 1 is connected with down connection horizontal tube 161, described connection horizontal tube 161 ends down are provided with Overflow drainage valve 162, generation overflow when the working medium height in the heat exchange outer tube 11 of the described heat exchange unit of bottom surpasses the height of lower communicating tube 16 described heat exchange outer tube 11 in, and flow into described down connection horizontal tube 161, discharged by described Overflow drainage valve 162, the two ends of pipe 12 are connected with described heat-absorbing medium input unit and described heat-absorbing medium output device respectively in the described heat exchange again.
The medium that carries out heat exchange, heat absorption can be a liquid, also can be gas, heat-absorbing medium in the present embodiment adopts liquid (water), described heat-absorbing medium input unit comprises water inlet manifold 2, described water inlet manifold 2 is arranged with some water inlet sparge pipes 21, described heat-absorbing medium output device comprises outfall sewer 3, and described outfall sewer 3 is arranged with some water outlet sparge pipes 31, and pipe 12 two ends are connected with described water inlet sparge pipe 21, water outlet sparge pipe 31 respectively in the heat exchange of described heat exchange unit.
Present embodiment also comprises self-con-tained unit 6, described water inlet manifold 2 is provided with control valve 22, described control valve 22 is used to regulate the inflow of described water inlet manifold 2, described heat exchange outer tube 11 is provided with temperature detection device 17, described temperature detection device 17 can adopt occasionally temperature sensor etc. of thermoelectricity, described temperature detection device 17 is used to survey the temperature on the described heat exchange outer tube 11, described control valve 22 and described temperature detection device 17 are electrically connected with described self-con-tained unit 6, the temperature data of the described heat exchange outer tube 11 that the described temperature detection device 17 of described self-con-tained unit 6 receptions detects, described self-con-tained unit 6 is again according to the opening degree of the described control valve 22 of temperature data Synchronization Control of described heat exchange outer tube 11, realize the control inflow, when the temperature of heat exchange outer tube 11 is high, then strengthen inflow, when the temperature of heat exchange outer tube 11 is hanged down, then reduce inflow.
In the present embodiment, in the described heat exchange unit of same row, what the heat exchange outer tube 11 of the described heat exchange unit of the superiors connected was provided with switch valve 154 last communicating pipe 15, the lower communicating tube 16 that the heat exchange outer tube 11 of orlop heat exchange unit connects is provided with down switch valve 163, can be to described heat exchange unit apportion control, when one of them heat exchange unit of a certain row damages, then can close the described switch valve 154 and the following switch valve 163 gone up of column, stop the work of this row heat exchange unit, and do not influence the operate as normal that other respectively are listed as described heat exchange unit.
The course of work of the present utility model is as follows:
1. working medium is injected: open Overflow drainage valve 162 and working medium liquid-filling valve 152, close air bleeding valve 153, working medium enters the last communicating pipe 15 of the heat exchange outer tube 11 of each row maximum layer heat exchange unit along last connection horizontal tube 151, in heat exchange unit, inject working medium, when the working medium liquid level of injecting exceeds lower communicating tube 16 tops, produce overflow and pass through the last communicating pipe 15 that lower communicating tube 16 flows into lower floor's heat exchange units, by that analogy until the described heat exchange unit of basecoat is injected the working medium overflow, and when Overflow drainage valve 162 is discharged, at this moment close working medium liquid-filling valve 152, close Overflow drainage valve 162 when Overflow drainage valve 162 is no longer discharged working medium, working medium is injected and is finished.
2. discharge on-condensible gas: control working medium cavity vacuum degree, feed high-temperature flue gas heating heat exchange unit, working medium in each heat exchange unit working medium cavity heats up, the phase transformation vaporization, vaporization working medium rises to the described connection horizontal tube 151 of going up by being communicated with vertical tube, described interior 151 pressure of connection horizontal tube of going up constantly rise, when reaching certain value, open air bleeding valve 153 exhausts, on-condensible gas is beaten to discharge and is finished when vaporization working medium is discharged, and closes described air bleeding valve 153 again, opens control valve 22 water inlets of water inlet, vaporization working medium is managed 12 outer wall condensations in described heat exchange, pressure obtains descending and keeps the certain vacuum degree.When on-condensible gas is too much in operation a period of time vaporization working medium, open air bleeding valve 153 again and discharge, close after the eliminating.
3. normal operation and control automatically: control valve 22 is opened the back water inlet, the continuous vaporization and condensation of working medium in the described heat exchange outer tube 11, finish the air water heat exchange of flue gas and water, when the flue gas thermic load changes, described heat exchange outer tube 11 wall temperatures are also along with variation, the temperature detection device 17 that is provided with on the described heat exchange outer tube 11 is gathered the heat exchange outer tube 11 wall surface temperature signals of telecommunication, be sent to described self-con-tained unit 6, open degree by the described control valve 22 of described self-con-tained unit 6 corresponding controls, adjust flow of inlet water, wall surface temperature with control heat exchange amount and then control integral level combined phasetransform heat exchanger, make described heat exchange outer tube 11 wall temperatures be controlled at the temperature value that is higher than flue gas acid dew point that corrodes avoided of setting, at utmost reclaim fume afterheat simultaneously.
Embodiment two:
As shown in Figure 2, in the present embodiment, adopt gas as heat-absorbing medium, described heat-absorbing medium input unit comprises inlet air door 4, air inlet tube sheet 41, airduct 43, described air inlet tube sheet 41 is provided with some air admission holes 42, described inlet air door 4 communicates with described air admission hole 42 by described airduct 43, described heat-absorbing medium output device comprises discharge pipe 5, the tube sheet 51 of giving vent to anger, the described tube sheet 51 of giving vent to anger is provided with some ventholes 52, described discharge pipe 5 communicates with described venthole 52, in the heat exchange of described heat exchange unit pipe 12 two ends respectively with described air admission hole 42, venthole 52 is connected.Present embodiment also comprises self-con-tained unit 6, and described heat exchange outer tube 11 is provided with temperature detection device 17, can be by the size of described inlet air door 4 adjusting intakes, and described inlet air door 4 and described temperature detection device 17 are electrically connected with described self-con-tained unit 6.
Other features of present embodiment and enforcement principle are consistent with embodiment one.
The utility model can be widely used in the heat recovery equipment field.
Claims (10)
1. horizontal combined phase change heat exchanger, it is characterized in that: it comprises the heat exchange unit of some permutation and combination, described heat exchange unit is divided into several layers and some row, described heat exchange unit two ends are respectively equipped with heat-absorbing medium input unit and heat-absorbing medium output device, described heat exchange unit comprises heat exchange outer tube (11), pipe (12) in the heat exchange, described heat exchange outer tube (11) is enclosed within pipe (12) outside in the described heat exchange, and it is sealed at both ends, described heat exchange outer tube (11) top and the bottom are provided with communicating pipe (15) and lower communicating tube (16) respectively, connect by described last communicating pipe (15) and lower communicating tube (16) between the heat exchange outer tube (11) of the described heat exchange unit in upper strata and the heat exchange outer tube (11) of the described heat exchange unit of lower floor, the described lower communicating tube (16) of described heat exchange outer tube (11) bottom feeds described heat exchange outer tube (11) inside, being connected with last communicating pipe (15) of heat exchange outer tube (11) top of the described heat exchange unit of the first floor is communicated with horizontal tube (151), the lower communicating tube (16) of heat exchange outer tube (11) bottom of the described heat exchange unit of bottom is connected with down connection horizontal tube (161), and the two ends of pipe (12) are connected with described heat-absorbing medium input unit and described heat-absorbing medium output device respectively in the described heat exchange.
2. horizontal combined phase change heat exchanger according to claim 1, it is characterized in that: described heat-absorbing medium input unit comprises water inlet manifold (2), described water inlet manifold (2) is arranged with some water inlet sparge pipes (21), described heat-absorbing medium output device comprises outfall sewer (3), described outfall sewer (3) is arranged with some water outlet sparge pipes (31), and pipe (12) two ends are connected with described water inlet sparge pipe (21), water outlet sparge pipe (31) respectively in the heat exchange of described heat exchange unit.
3. horizontal combined phase change heat exchanger according to claim 2, it is characterized in that: described horizontal combined phase change heat exchanger also comprises self-con-tained unit (6), described water inlet manifold (2) is provided with control valve (22), described heat exchange outer tube (11) is provided with temperature detection device (17), and described control valve (22) and described temperature detection device (17) are electrically connected with described self-con-tained unit (6).
4. horizontal combined phase change heat exchanger according to claim 1, it is characterized in that: described heat-absorbing medium input unit comprises inlet air door (4), air inlet tube sheet (41), airduct (43), described air inlet tube sheet (41) is provided with some air admission holes (42), described inlet air door (4) communicates with described air admission hole (42) by described airduct (43), described heat-absorbing medium output device comprises discharge pipe (5), the tube sheet (51) of giving vent to anger, the described tube sheet of giving vent to anger (51) is provided with some ventholes (52), described discharge pipe (5) communicates with described venthole (52), in the heat exchange of described heat exchange unit pipe (12) two ends respectively with described air admission hole (42), venthole (52) is connected.
5. horizontal combined phase change heat exchanger according to claim 4, it is characterized in that: described horizontal combined phase change heat exchanger also comprises self-con-tained unit (6), described heat exchange outer tube (11) is provided with temperature detection device (17), and described inlet air door (4) and described temperature detection device (17) are electrically connected with described self-con-tained unit (6).
6. according to claim 2 or 3 or 4 or 5 described horizontal combined phase change heat exchangers, it is characterized in that: described heat exchange outer tube (11) outer surface is provided with outer tube fin (13), pipe fin (14) in pipe (12) outer surface is provided with in the described heat exchange.
7. according to claim 2 or 3 or 4 or 5 described horizontal combined phase change heat exchangers, it is characterized in that: pipe (12) is pipe or elliptical tube in described heat exchange outer tube (11), the heat exchange.
8. according to claim 2 or 3 or 4 or 5 described horizontal combined phase change heat exchangers, it is characterized in that: described connection horizontal tube (151) end of going up is provided with working medium liquid-filling valve (152), air bleeding valve (153).
9. according to claim 2 or 3 or 4 or 5 described horizontal combined phase change heat exchangers, it is characterized in that: described connection horizontal tube (161) end down is provided with Overflow drainage valve (162).
10. according to claim 2 or 3 or 4 or 5 described horizontal combined phase change heat exchangers, it is characterized in that: in the described heat exchange unit of same row, what the heat exchange outer tube (11) of the described heat exchange unit of the superiors connected was provided with switch valve (154) last communicating pipe (15), and the lower communicating tube (16) that the heat exchange outer tube (11) of the described heat exchange unit of orlop connects is provided with down switch valve (163).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201928607U CN201680745U (en) | 2010-05-10 | 2010-05-10 | Horizontal combined phase-change heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201928607U CN201680745U (en) | 2010-05-10 | 2010-05-10 | Horizontal combined phase-change heat exchanger |
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| CN201680745U true CN201680745U (en) | 2010-12-22 |
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| CN2010201928607U Expired - Fee Related CN201680745U (en) | 2010-05-10 | 2010-05-10 | Horizontal combined phase-change heat exchanger |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852566A (en) * | 2010-05-10 | 2010-10-06 | 赵春 | Horizontal combined phase change heat exchanger |
| WO2015070423A1 (en) * | 2013-11-14 | 2015-05-21 | 深圳智慧能源技术有限公司 | Modular heat exchanger |
| WO2018007723A1 (en) | 2016-07-08 | 2018-01-11 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method for preheating a fluid upstream of a furnace |
| CN110388837A (en) * | 2019-07-29 | 2019-10-29 | 珠海格力电器股份有限公司 | The control method of heat exchanger, outdoor machine of air-conditioner, air conditioner and heat exchanger |
-
2010
- 2010-05-10 CN CN2010201928607U patent/CN201680745U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852566A (en) * | 2010-05-10 | 2010-10-06 | 赵春 | Horizontal combined phase change heat exchanger |
| CN101852566B (en) * | 2010-05-10 | 2012-01-25 | 赵春 | Horizontal combined phase change heat exchanger |
| WO2015070423A1 (en) * | 2013-11-14 | 2015-05-21 | 深圳智慧能源技术有限公司 | Modular heat exchanger |
| WO2018007723A1 (en) | 2016-07-08 | 2018-01-11 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method for preheating a fluid upstream of a furnace |
| FR3053767A1 (en) * | 2016-07-08 | 2018-01-12 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | PROCESS FOR PREHEATING A FLUID BEFORE AN OVEN |
| CN109642726A (en) * | 2016-07-08 | 2019-04-16 | 乔治洛德方法研究和开发液化空气有限公司 | For the method in the pre- hot fluid in furnace upstream |
| US10788208B2 (en) | 2016-07-08 | 2020-09-29 | L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method for preheating a fluid upstream of a furnace |
| RU2738154C2 (en) * | 2016-07-08 | 2020-12-08 | Л'Эр Ликид, Сосьете Аноним Пур Л'Этюд Э Л'Эксплуатасьон Де Проседе Жорж Клод | Method for preliminary heating of fluid medium upstream of furnace |
| CN110388837A (en) * | 2019-07-29 | 2019-10-29 | 珠海格力电器股份有限公司 | The control method of heat exchanger, outdoor machine of air-conditioner, air conditioner and heat exchanger |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Granted publication date: 20101222 Termination date: 20120510 |