CN112964008A - Heat exchange tube, evaporator and refrigerator - Google Patents
Heat exchange tube, evaporator and refrigerator Download PDFInfo
- Publication number
- CN112964008A CN112964008A CN202110218479.6A CN202110218479A CN112964008A CN 112964008 A CN112964008 A CN 112964008A CN 202110218479 A CN202110218479 A CN 202110218479A CN 112964008 A CN112964008 A CN 112964008A
- Authority
- CN
- China
- Prior art keywords
- defrosting
- refrigerator
- evaporator
- heat exchange
- heating mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/06—Removing frost
- F25D21/08—Removing frost by electric heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/06—Removing frost
- F25D21/065—Removing frost by mechanical means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/14—Collecting or removing condensed and defrost water; Drip trays
Abstract
The invention provides a heat exchange tube, an evaporator and a refrigerator. The heat exchange tube comprises a tube body and a heating mechanism, wherein the heating mechanism is arranged inside the tube body. According to the heat exchange tube, the evaporator and the refrigerator, the heating mechanism is arranged in the heat exchange tube, the temperature of the heat exchange tube and the temperature of the evaporator are increased through heating of the heating mechanism, the surface of frost contacting with the heat exchange tube are loosened, the frost removing process is completed through direct stripping under the driving of the vibration mechanism and/or the fan assembly, the surface of a pipeline does not need to be improved to be higher than zero degrees centigrade, and therefore energy consumption is reduced rapidly during defrosting. And because the temperature in the cavity is very low, the temperature can also reach the temperature set by a client quickly after entering the refrigeration cycle again, the low-temperature state of the refrigerating chamber can also be effectively prolonged by absorbing the temperature of the refrigerating chamber in the defrosting process, and the working time of the compressor is reduced by phase change.
Description
Technical Field
The invention relates to the technical field of refrigeration equipment, in particular to a heat exchange tube, an evaporator and a refrigerator.
Background
At present, the heater that domestic forced air cooling refrigerator defrosting deicing adopted is mostly steel pipe or quartz capsule heater and depends on in the evaporimeter bottom, and this kind of defrosting mechanism need produce a large amount of heats at the inside defrosting during operation that carries out of refrigerator, makes the frost on the evaporimeter become water completely and realizes the defrosting effect, has that the heating area is less, operating time is long, the energy consumption is high, heating efficiency is low, temperature homogeneity is poor (local temperature is too high), the heating highest temperature wayward scheduling problem.
Disclosure of Invention
In order to solve the technical problem that the defrosting effect is poor due to the fact that the heater is arranged at the bottom of the evaporator in the prior art, the heat exchange tube, the evaporator and the refrigerator are provided, and the defrosting effect is improved due to the fact that frost directly falls off through the heating mechanism in the heating tube.
The heat exchange tube comprises a tube body and a heating mechanism, wherein the heating mechanism is arranged inside the tube body.
The tube body comprises an inner tube and an outer tube, a refrigerant flow channel is formed between the inner tube and the outer tube, and the heating mechanism is arranged inside the inner tube.
An insulating structure is arranged in the inner pipe, and the heating mechanism is arranged in the insulating structure.
The heating mechanism comprises heating wires which are distributed in the pipe body in a linear mode.
An evaporator comprises the heat exchange tube.
A refrigerator comprises the evaporator.
The refrigerator includes casing and defrosting box, the evaporimeter set up in inside the casing, the defrosting box set up in the below of evaporimeter.
The refrigerator also comprises a frost receiving chassis, the frost receiving chassis is arranged between the evaporator and the defrosting box, and a communicating valve is arranged between the frost receiving chassis and the defrosting box.
The communicating valve comprises a turnover disc and a rotating shaft, the turnover disc is arranged on the rotating shaft, the rotating shaft is arranged on the defrosting base plate, and the turnover disc is provided with a first state enabling the defrosting base plate to be communicated with the defrosting box and a second state enabling the defrosting base plate to be sealed relative to the defrosting box.
The refrigerator also comprises a fan assembly, wherein the fan assembly is arranged above the evaporator, and when the refrigerator is in a defrosting process, the air outlet direction of the fan assembly points to the defrosting box.
The refrigerator also comprises a vibration mechanism, wherein the vibration mechanism is arranged on the evaporator and drives the evaporator to vibrate in the defrosting process of the refrigerator.
The refrigerator is characterized in that a freezing chamber and a refrigerating chamber are arranged in the shell, the refrigerating chamber is located below the freezing chamber, and the defrosting box is located on one side of the refrigerating chamber.
The defrosting device is characterized in that a compensation heating mechanism and a water outlet are arranged on the defrosting box, the compensation heating mechanism is arranged in the defrosting box, and the water outlet is located at the lowest point of the defrosting box.
And a filter screen is arranged at the water outlet.
According to the heat exchange tube, the evaporator and the refrigerator, the heating mechanism is arranged in the heat exchange tube, the temperature of the heat exchange tube and the temperature of the evaporator are increased through heating of the heating mechanism, the surface of frost contacting with the heat exchange tube are loosened, the frost removing process is completed through direct stripping under the driving of the vibration mechanism and/or the fan assembly, the surface of a pipeline does not need to be improved to be higher than zero degrees centigrade, and therefore energy consumption is reduced rapidly during defrosting. And because the temperature in the cavity is very low, the temperature can also reach the temperature set by a client quickly after entering the refrigeration cycle again, the low-temperature state of the refrigerating chamber can also be effectively prolonged by absorbing the temperature of the refrigerating chamber in the defrosting process, and the working time of the compressor is reduced by phase change.
Drawings
FIG. 1 is a cross-sectional view of a heat exchange tube, an evaporator, and a heat exchange tube of an embodiment of a refrigerator provided by the present invention;
FIG. 2 is a schematic structural diagram of a refrigerator, which is an embodiment of a heat exchange tube, an evaporator and a refrigerator provided by the invention;
FIG. 3 is a schematic view of a partial structure of a refrigerator, which is an embodiment of a heat exchange tube, an evaporator and a refrigerator provided by the invention;
in the figure:
1. a heating mechanism; 2. an inner tube; 3. an outer tube; 4. an insulating structure; 5. a housing; 6. a defrosting box; 7. a frost receiving chassis; 8. a communication valve; 9. a fan assembly; 10. a vibration mechanism; 51. a freezing chamber; 52. and a refrigerating chamber.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The heat exchange tube shown in fig. 1 comprises a tube body and a heating mechanism 1, wherein the heating mechanism 1 is arranged inside the tube body, when the heat exchange tube needs to be defrosted, the heating mechanism 1 is used for heating the tube body and the structure inside the tube body, so that frost on the surface of the tube body starts to melt from the position of the connection part with the tube body, and then the frost is automatically peeled off from the surface of the tube body under the influence of factors such as gravity, thereby overcoming the defect that in the prior art, the frost needs to be completely melted into water and then is defrosted, namely, the temperature around the pipeline does not need to be continuously heated to be higher than zero centigrade, effectively reducing the energy consumption of the heat exchange tube and an evaporator during defrosting, and simultaneously, because the tube body does not need to be heated to be higher than zero centigrade, when refrigeration is carried out again, the equipment where the heat exchange tube is located can also reach the temperature set by a client in a quick reading, further realizing the purpose of high-efficiency energy-saving defrosting.
The pipe body comprises an inner pipe 2 and an outer pipe 3, a refrigerant flow channel is formed between the inner pipe 2 and the outer pipe 3, the heating mechanism 1 is arranged inside the inner pipe 2, and the heating mechanism 1 is isolated from the refrigerant by the inner pipe 2, so that the influence of the refrigerant on the heating mechanism 1 is avoided, and the reliability of the heat exchange pipe is ensured.
The inner tube 2 is internally provided with an insulating structure 4, the heating mechanism 1 is arranged in the insulating structure 4, the insulating structure 4 is utilized to avoid circuit communication between the heating mechanism 1 and a refrigerant, and the electrical safety of equipment communicated with the heat exchange tube is ensured.
Heating mechanism 1 includes the heater strip, the heater strip be linear distribution in the inside of body, also the length of heater strip is equal to the length of body basically, the heater strip also can be surrounding type distribution in the body, when the heater strip is surrounding type, can improve the area of contact of heater strip and inner tube, improves heating efficiency.
An evaporator comprises the heat exchange tube, wherein the heat exchange tube is also provided with fins.
A refrigerator as shown in fig. 1 to 3 includes the heat exchange pipe described above.
A refrigerator as shown in fig. 1 to 3 includes the above-described evaporator.
The refrigerator includes casing 5 and defrosting box 6, the evaporimeter set up in 5 insides of casing, defrosting box 6 set up in the below of evaporimeter, when the refrigerator defrosts, frost on the evaporimeter can directly fall to defrosting box 6 in, plays the effect of accepting, makes the frost that does not melt at room temperature, the effectual energy-conserving purpose that reaches.
The refrigerator further comprises a frost receiving chassis 7, the frost receiving chassis 7 is arranged between the evaporator and the frost melting box 6, a communicating valve 8 is arranged between the frost receiving chassis 7 and the frost melting box 6, the peeled frost can smoothly fall into the frost melting box 6 under the guiding action of the frost receiving chassis 7, the peeled frost is prevented from falling onto other equipment to affect use, whether the frost receiving chassis 7 is communicated with the frost melting box 6 or not is controlled by the communicating valve 8, the communicating valve 8 is closed when the refrigerator refrigerates, the heat at the evaporator cannot affect the refrigeration effect of the refrigerator, the frost can smoothly fall into the frost melting box 6 during defrosting, the cross section of the frost receiving chassis 7 is trapezoidal, and the size of the lower bottom of the trapezoid connected with the frost melting box 6 is smaller than that of the upper bottom of the trapezoid.
The communicating valve 8 comprises a turnover disc and a rotating shaft, the turnover disc is arranged on the rotating shaft, the rotating shaft is arranged on the defrosting base plate 7, the turnover disc is provided with a first state enabling the defrosting base plate 7 to be communicated with the defrosting box 6 and a second state enabling the defrosting base plate 7 to be sealed relative to the defrosting box 6, the turnover disc is in a vertical state during the first state, frost can directly fall into the defrosting box 6 from two sides of the turnover disc, the turnover disc is in a horizontal state during the second state, and airflow cannot circulate from the communicating valve 8.
The refrigerator also comprises a fan assembly 9, wherein the fan assembly 9 is arranged above the evaporator, when the refrigerator is in a defrosting process, the air outlet direction of the fan assembly 9 points to the defrosting box 6, and the air outlet of the fan assembly 9 is utilized to enable the ice frost loosened with the pipeline to be stripped from the pipeline.
The refrigerator further comprises a vibration mechanism 10, wherein the vibration mechanism 10 is arranged on the evaporator, in the defrosting process of the refrigerator, the vibration mechanism 10 drives the evaporator to vibrate, and the vibration generated by the vibration mechanism 10 is utilized to strip the frost loosened from the pipeline.
A freezing chamber 51 and a refrigerating chamber 52 are arranged in the shell 5, the refrigerating chamber 52 is positioned below the freezing chamber 51, the defrosting box 6 is positioned on one side of the refrigerating chamber 52, when frost exists in the defrosting box 6, the refrigerating chamber 52 can be refrigerated by using the low temperature of the frost, and meanwhile, the temperature of the refrigerating chamber 52 higher than zero is used for melting the frost.
In order to prevent the blockage of residual ice in the defrosting box 6 when the next defrosting period comes, a compensation heating mechanism and a water outlet are arranged on the defrosting box 6, the compensation heating mechanism is arranged in the defrosting box 6, and the water outlet is positioned at the lowest point of the defrosting box 6.
The water outlet is provided with a filter screen to prevent solid frost or ice blocks from falling into the water outlet.
The evaporator is provided with a defrosting sensor, the defrosting box 6 is internally provided with a compensation sensor, the defrosting sensor judges whether the refrigerator needs defrosting, when the refrigerator enters a defrosting period, a low-power heating wire is connected with a power supply to provide a heat source, at the moment, the compressor stops rotating, the surface of the pipeline is heated due to the heat provided by the heating wire, but the power of the pipeline is extremely low, refrigerant residues exist in the pipeline, and the temperature of the surface of the pipeline is strictly controlled not to rise to be higher than zero; and at the moment, the fan still runs, and due to the obstruction of the frost layer, the space temperature of the outer layer of the frost layer is still kept in a low-temperature state before defrosting, and is lower than the temperature of the contact part of the frost layer and the surface of the pipeline, so that temperature difference is formed. The temperature difference can cause the frost layer to loosen, the fan supplies air to provide power, the micro vibrator intermittently shakes the evaporator at high frequency, and the frost layer on the surface of the pipeline falls off to the frost receiving chassis 7 after loosening under the influence of gravity. And when the defrosting sensor is lower than the zero temperature T, the defrosting cycle is finished to refrigerate again. The solid frost layer falling into the frost receiving base plate 7 falls into the defrosting box 6 through the opened turnover plate. And the compensation sensor at the bottom of the defrosting box 6 can judge whether the defrosting box 6 needs to be compensated and heated to melt the frost, and when the defrosting box needs to be heated, the compensation heater heats and treats the residual ice. And finishing the defrosting treatment process.
The control method of the refrigerator is characterized in that the refrigerator has a defrosting mode and a refrigerating mode:
in the defrosting mode, the heating mechanism 1 starts heating;
in the cooling mode, the heating mechanism 1 stops heating.
The refrigerator further comprises a vibration mechanism 10, the vibration mechanism 10 is arranged on the evaporator, and in the defrosting process of the refrigerator, the vibration mechanism 10 drives the evaporator to vibrate, and the control method further comprises the following steps:
in the defrosting mode, the vibration mechanism 10 starts vibrating;
in the cooling mode, the vibration mechanism 10 stops vibrating.
The refrigerator further comprises a frost receiving chassis 7, the frost receiving chassis 7 is arranged between the evaporator and the defrosting box 6, a communication valve 8 is arranged between the frost receiving chassis 7 and the defrosting box 6, the communication valve 8 comprises a turnover disc and a rotating shaft, the turnover disc is arranged on the rotating shaft, the rotating shaft is arranged on the frost receiving chassis 7, the turnover disc has a first state enabling the frost receiving chassis 7 to be communicated with the defrosting box 6 and a second state enabling the frost receiving chassis 7 to be sealed relative to the defrosting box 6, and the control method further comprises the following steps:
in the defrost mode, the flipping disk is in the first state;
in the cooling mode, the tumble disc is in the second state.
The refrigerator further includes a compressor, and in the defrost mode, the compressor is in a shutdown state.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (13)
1. A heat exchange tube, its characterized in that: the heating device comprises a tube body and a heating mechanism (1), wherein the heating mechanism (1) is arranged inside the tube body, the tube body comprises an inner tube (2) and an outer tube (3), a refrigerant flow channel is formed between the inner tube (2) and the outer tube (3), and the heating mechanism (1) is arranged inside the inner tube (2).
2. The heat exchange tube of claim 1, wherein: an insulating structure (4) is arranged in the inner tube (2), and the heating mechanism (1) is arranged in the insulating structure (4).
3. The heat exchange tube of claim 1, wherein: the heating mechanism (1) comprises heating wires which are distributed in the pipe body in a linear mode.
4. An evaporator, characterized by: comprising the heat exchange tube of any one of claims 1 to 3.
5. A refrigerator, characterized in that: comprising the evaporator of claim 4.
6. The refrigerator according to claim 5, wherein: the refrigerator comprises a shell (5) and a defrosting box (6), the evaporator is arranged inside the shell (5), and the defrosting box (6) is arranged below the evaporator.
7. The refrigerator according to claim 6, wherein: the refrigerator further comprises a frost receiving chassis (7), the frost receiving chassis (7) is arranged between the evaporator and the defrosting box (6), and a communicating valve (8) is arranged between the frost receiving chassis (7) and the defrosting box (6).
8. The refrigerator according to claim 7, wherein: the communicating valve (8) comprises a turnover disc and a rotating shaft, the turnover disc is arranged on the rotating shaft, the rotating shaft is arranged on the defrosting base plate (7), and the turnover disc is provided with a first state enabling the defrosting base plate (7) to be communicated with the defrosting box (6) and a second state enabling the defrosting base plate (7) to be sealed relative to the defrosting box (6).
9. The refrigerator according to claim 6, wherein: the refrigerator also comprises a fan assembly (9), wherein the fan assembly (9) is arranged above the evaporator, and when the refrigerator is in a defrosting process, the air outlet direction of the fan assembly (9) points to the defrosting box (6).
10. The refrigerator according to claim 5, wherein: the refrigerator also comprises a vibration mechanism (10), wherein the vibration mechanism (10) is arranged on the evaporator, and in the defrosting process of the refrigerator, the vibration mechanism (10) drives the evaporator to vibrate.
11. The refrigerator according to claim 6, wherein: a freezing chamber (51) and a refrigerating chamber (52) are arranged in the shell (5), the refrigerating chamber (52) is located below the freezing chamber (51), and the defrosting box (6) is located on one side of the refrigerating chamber (52).
12. The refrigerator according to claim 6, wherein: the defrosting device is characterized in that a compensation heating mechanism and a water outlet are arranged on the defrosting box (6), the compensation heating mechanism is arranged in the defrosting box (6), and the water outlet is positioned at the lowest point of the defrosting box (6).
13. The refrigerator according to claim 12, wherein: and a filter screen is arranged at the water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110218479.6A CN112964008A (en) | 2021-02-26 | 2021-02-26 | Heat exchange tube, evaporator and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110218479.6A CN112964008A (en) | 2021-02-26 | 2021-02-26 | Heat exchange tube, evaporator and refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112964008A true CN112964008A (en) | 2021-06-15 |
Family
ID=76275712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110218479.6A Pending CN112964008A (en) | 2021-02-26 | 2021-02-26 | Heat exchange tube, evaporator and refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112964008A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2903823Y (en) * | 2006-05-22 | 2007-05-23 | 海信集团有限公司 | Refrigerator with water butt |
| JP2010133590A (en) * | 2008-12-03 | 2010-06-17 | Mitsubishi Electric Corp | Refrigerator-freezer |
| CN101957117A (en) * | 2010-09-20 | 2011-01-26 | 合肥美的荣事达电冰箱有限公司 | Defrosting heater, evaporator assembly of refrigerating equipment and refrigerator with same |
| CN203132221U (en) * | 2012-12-18 | 2013-08-14 | 上海华族实业有限公司 | Refrigerant runner pipe with positive temperature coefficient (PTC) heater |
| CN103591751A (en) * | 2013-10-30 | 2014-02-19 | 西安交通大学 | Defrosting system of air cooling refrigerator and defrosting control method thereof |
| CN104132404A (en) * | 2014-07-31 | 2014-11-05 | 青岛海尔空调器有限总公司 | Air-conditioner defrosting method |
-
2021
- 2021-02-26 CN CN202110218479.6A patent/CN112964008A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2903823Y (en) * | 2006-05-22 | 2007-05-23 | 海信集团有限公司 | Refrigerator with water butt |
| JP2010133590A (en) * | 2008-12-03 | 2010-06-17 | Mitsubishi Electric Corp | Refrigerator-freezer |
| CN101957117A (en) * | 2010-09-20 | 2011-01-26 | 合肥美的荣事达电冰箱有限公司 | Defrosting heater, evaporator assembly of refrigerating equipment and refrigerator with same |
| CN203132221U (en) * | 2012-12-18 | 2013-08-14 | 上海华族实业有限公司 | Refrigerant runner pipe with positive temperature coefficient (PTC) heater |
| CN103591751A (en) * | 2013-10-30 | 2014-02-19 | 西安交通大学 | Defrosting system of air cooling refrigerator and defrosting control method thereof |
| CN104132404A (en) * | 2014-07-31 | 2014-11-05 | 青岛海尔空调器有限总公司 | Air-conditioner defrosting method |
Non-Patent Citations (2)
| Title |
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| 刘旭等: "《冷库、冷柜、冰箱、空调制冷技术与维修888问》", 30 November 2001, 人民邮电出版社 * |
| 孙立群: "《小家电检修技术快易通》", 31 January 2007, 国防工业出版社 * |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210615 |
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| RJ01 | Rejection of invention patent application after publication |