CN107606719B - Integrated multifunctional frostless heat exchanger - Google Patents
Integrated multifunctional frostless heat exchanger Download PDFInfo
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- CN107606719B CN107606719B CN201711021859.0A CN201711021859A CN107606719B CN 107606719 B CN107606719 B CN 107606719B CN 201711021859 A CN201711021859 A CN 201711021859A CN 107606719 B CN107606719 B CN 107606719B
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Abstract
The invention discloses an integrated multifunctional frost-free heat exchanger, which comprises a box body, an evaporator and an air cooler, wherein the evaporator and the air cooler are arranged in the box body; a longitudinally arranged microporous partition plate is arranged in the box body to divide the box body into a left compartment and a right compartment, and an evaporator and an air cooler are arranged in the right compartment; the air inlet duct is communicated with a left compartment of the box body, a dehumidifying device is arranged in the left compartment, and an adsorbing material regenerating device is arranged in the left compartment; the adsorbing material regeneration device comprises a vacuum pumping pipeline system communicated with the left compartment, and an auxiliary heat pipe and an electric air valve which are arranged in the left compartment; the auxiliary heat pipe is connected to a refrigerating system consisting of a condenser, a throttle valve, the evaporator and a compressor and is arranged between the compressor and the condenser; the invention has simple structure, environmental protection and energy saving, and realizes uninterrupted and efficient operation of the heat exchanger under the frost-free effect by integrating the dehumidification and regeneration functions of the adsorption material in the dehumidification device.
Description
Technical Field
The invention relates to a heat exchanger, in particular to an integrated multifunctional frost-free heat exchanger.
Background
Currently, a heat exchanger is a device which takes heat transfer as a main process or purpose, and is very commonly applied in the fields of power machinery, metallurgy, heating, ventilation, air conditioning, petrochemical industry and the like, wherein the finned tube heat exchanger is most widely applied, and more than 90% of cooling load in the chemical industry is borne by the heat exchanger in the form of the finned tube heat exchanger.
When the evaporator is applied to a refrigeration system, the surface of the evaporator is very easy to dew due to low temperature of the refrigerant and high temperature and humidity of the environment, and when the surface temperature of the evaporator is continuously reduced, a frosting phenomenon of a heat exchange tube and fins can be caused, and the frosting phenomenon is common in the fields of food refrigeration and air conditioning. The heat exchange performance of the evaporator can be reduced no matter condensation or frosting occurs, the frost layer not only increases heat exchange resistance, but also consumes a large amount of cold energy due to condensation phase change latent heat, and the energy consumption of the system is increased, so that the method has important significance in timely defrosting or developing a frostless heat exchange technology under a low-temperature working condition.
The existing mature defrosting technology comprises the following steps: electric heating defrosting, hot gas bypass defrosting, four-way reversing hot fluorine defrosting, hot water spray defrosting, mechanical defrosting and the like. However, the above defrosting methods have the common disadvantage that the normal refrigeration operation cannot be satisfied during defrosting, and some defrosting methods release extra heat to enter the cold room, thereby affecting the temperature and humidity control of the cold room. Meanwhile, in the field of air conditioning, the wet air needs to pass through a dehumidifier before entering the evaporator to reduce the possibility of condensation of the air conditioner, but the air conditioner dehumidifier is generally complex in structure and large in volume, and the dehumidifying adsorption material is not renewable or needs an additional heat source. Therefore, the frostless heat exchanger with simple structure and low energy consumption is developed, and the problem can be fundamentally solved only by preventing the moisture in the wet air from condensing and frosting on the surface of the evaporator.
Disclosure of Invention
The invention aims to provide an integrated multifunctional frost-free heat exchanger which is simple in structure and low in energy consumption and effectively avoids moisture in wet air from condensing and frosting on the surface of an evaporator.
The specific scheme of the invention is as follows: an integrated multifunctional frostless heat exchanger comprises a box body, an evaporator and an air cooler which are arranged in the box body, wherein an air inlet channel and an air outlet channel are arranged on the box body; the method is characterized in that: a longitudinally-arranged microporous partition plate is arranged in the box body, the box body is divided into a left compartment and a right compartment by the microporous partition plate, and the evaporator and the air cooler are installed in the right compartment; the air inlet duct is communicated with a left compartment of the box body, a dehumidifying device for dehumidifying the humid air introduced into the box body is arranged in the left compartment, and an adsorbing material regenerating device for regenerating and utilizing adsorbing materials in the dehumidifying device is arranged; the adsorption material regeneration device comprises a vacuum pumping pipeline system communicated with the left compartment, and an auxiliary heat pipe and an electric air valve which are sequentially arranged between the dehumidification device and the microporous partition plate in the left compartment from left to right; the auxiliary heat pipe is connected to a refrigerating system consisting of a condenser, a throttle valve, the evaporator and a compressor and is arranged between the compressor and the condenser; the evaporator adopts a spiral transverse fin type finned tube for electromagnetic enhanced heat exchange.
The air inlet duct, the dehumidifying device and the adsorbing material regenerating device are respectively provided with two sets; the utility model discloses a dehumidifying box, including box, horizontal baffle, air inlet duct, dehydrating unit and adsorbing material regenerating unit, be equipped with the horizontal baffle in the left compartment of box, correspond at horizontal baffle upside and downside left compartment and install one set air inlet duct, dehydrating unit and adsorbing material regenerating unit all are equipped with the control valve in every set air inlet duct and adsorbing material regenerating unit's the evacuation pipe-line system, realize the dehumidification operation of left compartment upside dehydrating unit and the regeneration operation simultaneous working of downside adsorbing material regenerating unit through the control valve to with this alternate operation.
The finned tube comprises a heat exchange tube and spiral fins which are transversely swept on the outer wall of the heat exchange tube; the heat exchange tube and the spiral fins are both made of non-magnetic materials; the cross section of the spiral fin is in a triangular structure and is formed by welding a first fin and a second fin along the spiral arrangement direction of the first fin and the second fin; spiral coils arranged along the spiral arrangement direction of the spiral fins are arranged in the spiral fins, and two lead ends of the spiral coils are correspondingly connected with a regulated power supply with adjustable output current; and heat-conducting silica gel is filled in a gap formed by the inner cavity of the spiral fin and the spiral coil.
The heat exchange tube adopts a round copper tube; the first fin and the second fin are both made of aluminum materials; the spiral coil is an enameled coil.
The utility model provides an adopt spiral horizontal fin type heat exchanger finned tube of electromagnetism intensive heat transfer, includes the heat exchange tube and violently grazes the helical fin on the heat exchange tube outer wall, characterized by: the heat exchange tube and the spiral fin are both made of non-magnetic materials; the cross section of the spiral fin is in a triangular structure and is formed by welding a first fin and a second fin along the spiral arrangement direction of the first fin and the second fin; spiral coils arranged along the spiral arrangement direction of the spiral fins are arranged in the spiral fins, and two lead ends of the spiral coils are correspondingly connected with a regulated power supply with adjustable output current; and heat-conducting silica gel is filled in a gap formed by the inner cavity of the spiral fin and the spiral coil.
The heat exchange tube adopts a round copper tube; the first fin and the second fin are both made of aluminum materials; the spiral coil is an enameled coil.
The type of the current output by the voltage-stabilized power supply to the spiral coil is constant current, alternating current or pulse current.
The invention has the following beneficial effects:
(1) The invention has simple structure and ingenious design, and realizes the uninterrupted and efficient operation of the heat exchanger under the frostless effect by integrating the dehumidification and regeneration functions of the adsorption material in the dehumidification device;
(2) When the adsorption material regeneration device regenerates and utilizes the adsorption material in the dehumidification device, the exhaust waste heat of the compressor is efficiently utilized, and the energy utilization rate and the refrigeration performance of the system are effectively improved;
(3) The finned tube is based on an electromagnetic enhanced heat exchange theory, and in actual production, different types of currents are output to the spiral coil by adjusting the voltage-stabilized power supply, so that the transverse fin type heat exchanger can achieve the optimal electromagnetic enhanced heat exchange process under different heat exchange modes for different fluids, can be used for uniformly defrosting the heat exchanger, can effectively improve the defrosting efficiency, and has an energy-saving effect;
(4) The invention also realizes sterilization through the magnetic field with proper intensity generated by the finned tube, thereby effectively inhibiting the formation of biological dirt on the heat exchanger.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of an installation structure of an auxiliary heat pipe in a refrigerating system according to the present invention;
FIG. 3 is a schematic diagram of the present invention showing the operation of dehumidifying on the upper side of the horizontal partition and regenerating on the lower side of the horizontal partition;
FIG. 4 is a schematic diagram of the present invention showing the dehumidification operation performed on the lower side of the horizontal partition and the regeneration operation performed on the upper side of the horizontal partition;
FIG. 5 is a schematic structural view of the finned tube of the invention;
FIG. 6 is a schematic sectional view showing the finned tube of the invention.
In the figure: 1-box, 2-evaporator, 3-air cooler, 4-air intake duct, 4 a-first air intake duct, 4 b-second air intake duct, 5-air outlet duct, 6-microporous partition, 7-left compartment, 8-right compartment, 9-horizontal partition, 10-first control valve, 11-second control valve, 12-first dehumidifying adsorbent, 13-second dehumidifying adsorbent, 14-first auxiliary heat pipe, 15-second auxiliary heat pipe, 16-first electric air valve, 17-second electric air valve, 18-first vacuum pumping pipeline, 19-second vacuum pumping pipeline, 20-third control valve, 21-fourth control valve, 22-vacuum pump, 23-condenser, 24-throttle valve, 25-compressor, 26-fifth control valve, 27-sixth control valve, 28-heat exchange pipe, 29-spiral fin, 29 a-first fin, 29 b-second fin, 30-spiral coil, 31-stabilized voltage power supply, 32-silica gel.
Detailed Description
Example 1
Referring to fig. 1, the integrated multifunctional frostless heat exchanger comprises a box body 1, an evaporator 2 and an air cooler 3 which are arranged in the box body 1, wherein an air inlet duct 4 and an air outlet duct 5 are arranged on the box body 1; a microporous partition plate 6 which is longitudinally arranged is arranged in the box body 1, the box body 1 is divided into a left compartment 7 and a right compartment 8 by the microporous partition plate 6, and the evaporator 2 and the air cooler 3 are installed in the right compartment 8; from this, left compartment 7 of box 1 has reached the effect of static pressure case, and under the negative pressure effect of air-cooler 3, the micropore baffle 6 left and right sides forms pressure differential, and the gas in the left compartment 7 can evenly pass micropore baffle 6 and get into right compartment 8 to fully contact with evaporimeter 2, discharge from air-out duct 5 under the effect of air-cooler 3 again, thereby realized the effect of optimizing the heat transfer.
The air inlet duct 4 is communicated with a left compartment 7 of the box body, a dehumidifying device for dehumidifying the humid air introduced into the box body 1 is arranged in the left compartment 7, and an adsorbing material regenerating device for regenerating and utilizing adsorbing materials in the dehumidifying device is arranged; the air inlet duct 4, the dehumidifying device and the adsorbing material regenerating device are respectively provided with two sets; a horizontal partition plate 9 is arranged in the left compartment 7 of the box body 1, and a set of the air inlet duct 4, a dehumidifying device and an adsorbing material regenerating device are correspondingly arranged on the left compartment 7 at the upper side and the lower side of the horizontal partition plate 9; the adsorbing material regenerating device comprises a vacuumizing pipeline system communicated with the left compartment 7, and an auxiliary heat pipe and an electric air valve which are sequentially arranged between the dehumidifying device and the microporous partition plate 6 in the left compartment 7 from left to right. Control valves are arranged in the vacuumizing pipeline systems of each set of the air inlet duct 4 and the adsorbing material regeneration device, and the dehumidification operation of the upper side dehumidification device and the regeneration operation of the lower side adsorbing material regeneration device of the left compartment 7 can work simultaneously through the control valves and can run alternately. It should be noted that, when only one set of the air inlet duct 4, the dehumidifying device and the adsorbing material regenerating device is provided, the dehumidifying operation of the dehumidifying device and the regenerating operation of the adsorbing material regenerating device to the dehumidifying device cannot be performed simultaneously, but can be performed alternately, and although the alternate operation mode reduces the dehumidifying efficiency compared with the dehumidifying efficiency of the two sets of the dehumidifying device and the adsorbing material regenerating device which operate simultaneously, the heat exchanger can be ensured to operate continuously and efficiently under the frost-free effect.
As can be seen from fig. 1, the two sets of air inlet ducts 4 are respectively marked as a first air inlet duct 4a and a second air inlet duct 4b, a first control valve 10 is installed on the first air inlet duct 4a, and a second control valve 11 is installed on the second air inlet duct 4 b; the two sets of dehumidification devices respectively adopt a first dehumidification adsorbent 12 and a second dehumidification adsorbent 13 which are arranged on the upper side and the lower side of the horizontal partition plate 9; the two sets of adsorbing material regenerating devices comprise a first auxiliary heat pipe 14 and a first electric air valve 16 which are arranged on the upper side of the horizontal partition plate 9, a first vacuumizing pipeline 18 communicated with the left compartment 7 on the upper side of the horizontal partition plate 9, a second auxiliary heat pipe 15 and a second electric air valve 17 which are arranged on the lower side of the horizontal partition plate 9, and a second vacuumizing pipeline 19 communicated with the left compartment 7 on the lower side of the horizontal partition plate 9, wherein a third control valve 20 and a fourth control valve 21 are correspondingly arranged on the first vacuumizing pipeline 18 and the second vacuumizing pipeline 19, the output ends of the first vacuumizing pipeline 18 and the second vacuumizing pipeline 19 are communicated, and a vacuum pump 22 is arranged on the pipelines.
Referring to fig. 2, the first auxiliary heat pipe 14 and the second auxiliary heat pipe 15 are connected in parallel in the refrigeration system constituted by the condenser 23, the throttle valve 24, and the evaporator 2 and the compressor 25; the inlets of the first auxiliary heat pipe 14 and the second auxiliary heat pipe 15 are both connected with the exhaust port of the compressor 25, and the outlets of the first auxiliary heat pipe 14 and the second auxiliary heat pipe 15 are connected with the inlet of the condenser 23; a fifth control valve 26 and a sixth control valve 27 are correspondingly arranged on the pipelines from the exhaust port of the compressor 25 to the inlet ends of the first auxiliary heat pipe 14 and the second auxiliary heat pipe 15; the first control valve 10, the second control valve 11, the third control valve 20, the fourth control valve 21, the fifth control valve 26, and the sixth control valve 27 are all solenoid valves, and the fifth control valve 26 and the sixth control valve 27 may be replaced by three-way valves.
The evaporator 2 adopts a spiral transverse fin type finned tube for electromagnetic enhanced heat exchange.
The working principle of the invention is as follows:
referring to fig. 3, the heat exchanger is shown performing dehumidification operation on the upper side of the horizontal partition 9, while performing regeneration operation on the lower side of the horizontal partition 9. In this mode, the first control valve 10 and the fourth control valve 21 are opened; the second control valve 11 and the third control valve 20 are closed; the first electric air valve 16 is opened, and the second electric air valve 17 is closed; under the action of the air cooler 3, cold room wet air enters the heat exchanger from the first air inlet duct 4a, then the moisture content of the wet air is rapidly reduced after passing through the first dehumidifying adsorbent 12, and the phenomenon of condensation is avoided when the wet air passes through the low-temperature evaporator 2. The dehumidified dry air is directed into the plenum chamber by the first electric damper 16 in an open position. At this time, the fifth control valve 26 on the pipeline where the first auxiliary heat pipe 14 is located is closed, the sixth control valve 27 on the pipeline where the second auxiliary heat pipe 15 is located is opened, and the high-temperature refrigerant flows through the second auxiliary heat pipe 15; then, the air uniformly penetrates through the microporous partition plate 6 under the action of the optimized airflow structure of the microporous partition plate 6 and is in full contact with the evaporator 2 in the right compartment 8 for heat exchange, and the cold air after heat exchange finally enters the cold room under the action of the air cooler 3.
At the same time, the regeneration process of the heat exchanger second dehumidifying adsorbent 13 is performed in synchronization with the dehumidification. At this time, the second dehumidifying adsorbent 13 is in a saturated state, and since the high-temperature refrigerant releases heat by flowing through the second auxiliary heat pipe 15, the second electric air valve 17 is closed to prevent the heat from being dissipated, and the moisture in the second dehumidifying adsorbent 13 is rapidly increased in temperature. When the vacuum pump 22 is started, the high-temperature water is easily vaporized due to the rapid reduction of the space pressure, and the high-temperature water vapor is discharged out of the heat exchanger to the outside of the cold room under the action of the vacuum pump 22. The moisture vaporization requires heat absorption, and thus the second auxiliary heat pipe 15 is cooled, thereby improving the performance of the refrigeration system.
Referring to fig. 4, the heat exchanger is shown performing dehumidification operation on the lower side of the horizontal partition 9, while performing regeneration operation on the upper side of the horizontal partition 9. After the second dehumidifying adsorbent 13 is regenerated, the first control valve 10 and the fourth control valve 21 should be closed in order to improve the dehumidifying capacity of the heat exchanger; opening the second control valve 11 and the third control valve 20; at the same time, the sixth control valve 27 on the pipeline where the second auxiliary heat pipe 15 is located is closed, the fifth control valve 26 on the pipeline where the first auxiliary heat pipe 14 is located is opened, and at this time, the high-temperature refrigerant enters the first auxiliary heat pipe 14; in addition, the second electric air valve 17 is opened, and the first electric air valve 16 is closed. At this time, the cold room humid air can enter the heat exchanger through the second air inlet duct 4b, and then the moisture content of the humid air is rapidly reduced after passing through the second dehumidifying adsorbent 13, and it is ensured that there is no dewing phenomenon when passing through the heat exchanger 2. The dehumidified dry air enters the static pressure box through the flow guiding effect of the second electric air valve 17 in the open state, uniformly penetrates through the microporous partition plate 6 under the effect of optimizing the air flow structure of the microporous partition plate 6, fully contacts with the evaporator 2 for heat exchange, and finally enters the cold room under the effect of the air cooler 3 after heat exchange.
At the same time, the regeneration of the first dehumidifying adsorbent 12 in the heat exchanger is performed in synchronization with the dehumidification. Since the high-temperature refrigerant releases heat by flowing through the first auxiliary heat pipe 14, the moisture in the first dehumidifying adsorbent 12 is rapidly increased in temperature. When the vacuum pump 22 is turned on, the high-temperature moisture in the first dehumidifying adsorbent 12 is easily vaporized and discharged out of the heat exchanger due to the rapid decrease in the space pressure.
Therefore, the switching mode of the dehumidification and the regeneration of the dehumidification adsorbent in the heat exchanger can be easily realized by controlling the opening and closing states of the control valve and the two electric air valves on the corresponding pipelines. The timing switching of the different modes needs to be determined through specific experiments, and an optimal switching time interval is set on the basis of ensuring that the heat exchanger has no condensation and frost phenomena.
Example 2
Referring to fig. 5 and 6, the finned tube in the present embodiment includes a heat exchange tube 28 and a spiral fin 29 swept across the outer wall of the heat exchange tube 28; the heat exchange tube 28 and the spiral fin 29 are both made of non-magnetic materials; the cross section of the spiral fin 29 is in a triangular structure and is formed by welding a first fin 29a and a second fin 29b along the spiral arrangement direction; a spiral coil 30 arranged along the spiral arrangement direction of the spiral fin 29 is arranged in the spiral fin 29, and two lead ends of the spiral coil 30 are correspondingly connected with a regulated power supply 31 with adjustable output current; the gap formed by the inner cavity of the helical fin 29 and the helical coil 30 is filled with heat-conducting silica gel 32, and the heat-conducting silica gel 32 plays roles of heat conduction, sealing fixation and insulation for the helical coil 30.
In this embodiment, the heat exchange 28 pipe is a circular copper pipe; the first fin 29a and the second fin 29b are both made of aluminum materials; the spiral coil 30 is an enameled coil.
The type of the current output from the regulated power supply 31 to the spiral coil 30 in this embodiment is a constant current, an alternating current or a pulse current. As shown in fig. 6, according to the transmission direction of the current in the spiral coil 30, the spiral current in the spiral coil 30 can generate a magnetic induction line parallel to the axial direction in the heat exchange tube 28, and parameters such as the magnetic field density, the frequency, the waveform and the like of the magnetic field can be adjusted by changing the current output by the voltage-stabilized source 31, so as to meet the requirements of different magnetic field enhanced heat transfer processes, and the effect is better if the fluid is magnetic fluid.
Therefore, the finned tube is based on an electromagnetic enhanced heat exchange theory, in actual production, different types of currents are output to the spiral coil 30 through the regulated voltage-stabilized source 31, the transverse fin type heat exchanger achieves the best electromagnetic enhanced heat exchange process under different heat exchange modes of different fluids, the transverse fin type heat exchanger can be used for uniformly defrosting the heat exchanger, defrosting efficiency can be effectively improved, and an energy-saving effect is achieved.
Claims (3)
1. An integrated multifunctional frostless heat exchanger comprises a box body, an evaporator and an air cooler, wherein the evaporator and the air cooler are arranged in the box body; the method is characterized in that: a longitudinally-arranged microporous partition plate is arranged in the box body, the box body is divided into a left compartment and a right compartment by the microporous partition plate, and the evaporator and the air cooler are installed in the right compartment; the air inlet duct is communicated with the left compartment of the box body, a dehumidifying device for dehumidifying the humid air introduced into the box body is arranged in the left compartment, and an adsorbing material regenerating device for regenerating and utilizing adsorbing materials in the dehumidifying device is arranged; the adsorption material regeneration device comprises a vacuum pumping pipeline system communicated with the left compartment, and an auxiliary heat pipe and an electric air valve which are sequentially arranged between the dehumidification device and the microporous partition plate in the left compartment from left to right; the auxiliary heat pipe is connected in a refrigerating system consisting of a condenser, a throttle valve, the evaporator and a compressor and is arranged between the compressor and the condenser; the evaporator adopts a spiral transverse fin type finned tube for electromagnetic enhanced heat exchange; the air inlet duct, the dehumidifying device and the adsorbing material regenerating device are respectively provided with two sets; a horizontal partition plate is arranged in a left compartment of the box body, a set of the air inlet duct, the dehumidifying device and the adsorbing material regenerating device are correspondingly arranged in the left compartments at the upper side and the lower side of the horizontal partition plate, a control valve is arranged in a vacuum pumping pipeline system of each set of the air inlet duct and the adsorbing material regenerating device, and the dehumidifying operation of the dehumidifying device at the upper side of the left compartment and the regenerating operation of the adsorbing material regenerating device at the lower side can work simultaneously and alternately through the control valves; the finned tube comprises a heat exchange tube and spiral fins which are swept on the outer wall of the heat exchange tube; the heat exchange tube and the spiral fins are both made of non-magnetic materials; the cross section of the spiral fin is in a triangular structure and is formed by welding a first fin and a second fin along the spiral arrangement direction of the first fin and the second fin; spiral coils arranged along the spiral arrangement direction of the spiral fins are arranged in the spiral fins, and two lead ends of the spiral coils are correspondingly connected with a regulated power supply with adjustable output current; and heat-conducting silica gel is filled in a gap formed by the inner cavity of the spiral fin and the spiral coil.
2. The integrated multifunctional frostless heat exchanger of claim 1, wherein: the heat exchange tube is a round copper tube; the first fin and the second fin are both made of aluminum materials; the spiral coil is an enameled coil.
3. The integrated multifunctional frostless heat exchanger of claim 1, wherein: the type of the current output by the voltage-stabilized power supply to the spiral coil is constant current, alternating current or pulse current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711021859.0A CN107606719B (en) | 2017-10-27 | 2017-10-27 | Integrated multifunctional frostless heat exchanger |
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| CN201711021859.0A CN107606719B (en) | 2017-10-27 | 2017-10-27 | Integrated multifunctional frostless heat exchanger |
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| CN107606719A CN107606719A (en) | 2018-01-19 |
| CN107606719B true CN107606719B (en) | 2022-12-20 |
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| KR101919336B1 (en) * | 2018-07-27 | 2018-11-19 | (주)삼공사 | Cooling unit using isobutane as refrigerant |
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| GB1132438A (en) * | 1966-02-19 | 1968-10-30 | Chepos Zd Y Chemickeho A Potra | Heat-exchanger |
| JP2007240128A (en) * | 2006-03-13 | 2007-09-20 | Mitsubishi Electric Corp | Fin for heat exchanger, heat exchanger, and air conditioner |
| CN104422041A (en) * | 2013-08-28 | 2015-03-18 | 广东美的制冷设备有限公司 | Method for reducing frosting speed of outdoor machine as well as air conditioner system and outdoor machine |
| CN104792218A (en) * | 2015-04-22 | 2015-07-22 | 浙江大学 | Method and device for utilizing magneto-thermal convection to intensify low-temperature oxygen-containing fluid heat transfer |
| CN106767084A (en) * | 2016-12-01 | 2017-05-31 | 中国船舶重工集团公司第七〇九研究所 | A kind of contactless fluid-mixing strengthened heat exchange method and heat-exchanger rig |
| CN207540038U (en) * | 2017-10-27 | 2018-06-26 | 润壤科技（黄石）有限公司 | A kind of integral multifunctional Free-frost heat exchanger and its finned tube |
| CN207540415U (en) * | 2017-10-27 | 2018-06-26 | 润壤科技（黄石）有限公司 | A kind of spiral horizontal fin formula finned tube using electromagnetism enhanced heat exchange |
| CN109724443A (en) * | 2017-10-27 | 2019-05-07 | 润壤科技（黄石）有限公司 | A kind of spiral horizontal fin formula finned tube using electromagnetism enhanced heat exchange |
-
2017
- 2017-10-27 CN CN201711021859.0A patent/CN107606719B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1132438A (en) * | 1966-02-19 | 1968-10-30 | Chepos Zd Y Chemickeho A Potra | Heat-exchanger |
| JP2007240128A (en) * | 2006-03-13 | 2007-09-20 | Mitsubishi Electric Corp | Fin for heat exchanger, heat exchanger, and air conditioner |
| CN104422041A (en) * | 2013-08-28 | 2015-03-18 | 广东美的制冷设备有限公司 | Method for reducing frosting speed of outdoor machine as well as air conditioner system and outdoor machine |
| CN104792218A (en) * | 2015-04-22 | 2015-07-22 | 浙江大学 | Method and device for utilizing magneto-thermal convection to intensify low-temperature oxygen-containing fluid heat transfer |
| CN106767084A (en) * | 2016-12-01 | 2017-05-31 | 中国船舶重工集团公司第七〇九研究所 | A kind of contactless fluid-mixing strengthened heat exchange method and heat-exchanger rig |
| CN207540038U (en) * | 2017-10-27 | 2018-06-26 | 润壤科技（黄石）有限公司 | A kind of integral multifunctional Free-frost heat exchanger and its finned tube |
| CN207540415U (en) * | 2017-10-27 | 2018-06-26 | 润壤科技（黄石）有限公司 | A kind of spiral horizontal fin formula finned tube using electromagnetism enhanced heat exchange |
| CN109724443A (en) * | 2017-10-27 | 2019-05-07 | 润壤科技（黄石）有限公司 | A kind of spiral horizontal fin formula finned tube using electromagnetism enhanced heat exchange |
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