CN1081759A - Evaporator without frost - Google Patents
Evaporator without frost Download PDFInfo
- Publication number
- CN1081759A CN1081759A CN 92115109 CN92115109A CN1081759A CN 1081759 A CN1081759 A CN 1081759A CN 92115109 CN92115109 CN 92115109 CN 92115109 A CN92115109 A CN 92115109A CN 1081759 A CN1081759 A CN 1081759A
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- evaporator
- housing
- frost
- cold
- evaporimeter
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- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The present invention relates to gas is cold carrier, and evaporating temperature is lower than the evaporimeter in the various refrigeration systems of zero degree.Its structure with evaporimeter (1), blower fan (2) place one with extraneous isolate fully, material is with in metal or the nonmetal closure casing of making (5), places drier (3) and cold storage body (4) in the housing (5).All pipe, line and holes that lead in the housing (5) seal.Drier (3) absorbs the moisture in the gas, makes evaporimeter (1) reach frostless operation, keeps higher Coefficient K value, and cold storage body (4) and cold airflow forced-convection heat transfer have improved the efficient of compressor.Therefore, be specially adapted to various refrigeration systems such as energy-conservation refrigerator of having relatively high expectations, refrigerator, freezers.
Description
The present invention relates to gas is cold carrier, and evaporating temperature is lower than the evaporimeter in the various refrigeration systems of zero degree.
In present refrigeration system, the evaporimeter that the cooling air is used, the one, make air keep low temperature by free convection, another is to make air keep low temperature by forced convertion.The back is a kind of owing to have a heat transfer coefficient height, and temperature evenly and easily be automated and be widely used on frost-free refrigerator-freezer and the various types of freezer.But also there is such following point in it: the moisture contained owing to air is condensed in evaporator surface by the evaporator cools of low temperature, along with time lengthening, frost is thickeied gradually, and heat transfer coefficient reduces gradually, the slit of last evaporator is stopped up by frost, and air can not circulate and not freeze.For addressing this problem defrosting in time.The defrosting mode mainly contains electrical heating, and no matter any three kinds of hot refrigerant vapor refrigerant and water defrostings be, all is to achieve the goal to consume certain electric energy.The frost of analysing of cryogenic vaporizer is a kind of inevitable phenomenon, so, up to now, people's the starting point mainly is to be placed on to change on evaporation structure and the change cooling condition, prolong defrosting at interval, reach energy-conservation purpose, research for this respect sees " the 15 international refrigeration conference paper collected translation " middle volume that " refrigeration journal " editorial office publishes in June, 1981, " planform of finned air cooler and operation thereof under frozen condition ", " characteristic of finned aerial cooler surface frosting " two pieces of paper (P356-362, Bulgaria, T.S. Jia Qiluofu etc.).In addition, because cold airflow acts directly on the preserved food products, increased the food drying loss.
The objective of the invention is to provide a kind of evaporator without frost, its white phenomenon of analysing of device surface that can avoid evaporating effectively.
The object of the present invention is achieved like this: with evaporimeter, blower fan place one with extraneous closure casing of isolating fully in, all pipeline and holes that lead in the housing seal.The motor of blower fan also can place outside the housing, but the motor shaft material therefor will be considered the cold bridge problem, cold carrier in the housing can be an air, also can be the good gas of other heat conductivility, according to the water capacity in the gas, the volume of housing is placed the drier of some in housing, be used to absorb gas moisture.Arrange the cold storage body of some in the housing simultaneously, and form gas flow that the direct and cold airflow forced-convection heat transfer of cold storage body makes cold storage body cool off cold-storage fast by cold storage body.
The present invention is because the Coefficient K value can maintain high value all the time, and according to heat transfer formula Q 〓 K.F. △ t, when identical heat transfer area F and temperature difference △ t, heat exchange amount Q increases, owing to do not analyse frost, has also just avoided the defrosting power consumption.Owing to need not take airflow obstruction into account, evaporator fin apart from or the light pipe pipe apart from can be less, volume dwindled greatly and shortened the cold-producing medium flow process, the pressure loss reduces.In addition; cold storage body and circulation cold airflow carry out forced convertion; stronger exchange capability of heat is arranged; compressor can make evaporating temperature and cold storage body temperature difference less, so can turn round under high efficient; and obtain stable operating condition; the slow released cold quantity of cold storage body, temperature fluctuation and food drying loss reduce, and prolong downtime.Therefore, be specially adapted to various refrigeration systems such as energy-conservation refrigerator of having relatively high expectations, refrigerator, freezers.
Accompanying drawing is the profile of the evaporator without frost of proposition according to the present invention.
This invention comprises evaporimeter (1), blower fan (2), drier (3), cold storage body (4), housing (5).
Evaporimeter (1) is fixed in the housing (5), carries out encapsulation process when its feed tube, muffler (not shown) are passed the outer wall of housing (5), and blower fan (2) adopts air draught type or bleed type, is illustrated as bleed type, and effect is the same.The motor of blower fan (2) passes the axle of housing (5) when housing (5) outside, coupling bolt hole and wire hole all will seal, in case extraneous air enters in the housing (5).Drier (3) is placed on the place of being convenient to keep in repair, because system needs to change drier after maintenance.The hole of opening on housing (5) for the replacing drier also will seal.The pattern that cold storage body (4) is arranged should be able to make gas form sealing and circulating, and the quantity that each position is arranged is decided on the refrigeration process requirement.The material of housing (5) is with metal or nonmetal making, and according to designing requirement, its shape can be designed to various.
Claims (8)
1, a kind of evaporator without frost is characterized in that: with evaporimeter (1), blower fan (2) place one with extraneous closure casing (5) of isolating fully in, place drier (3) and cold storage body (4) in the housing (5).
2, evaporator without frost according to claim 1 is characterized in that: all pipe, line and holes that lead in the housing (5) will seal.
3, evaporator without frost according to claim 1 is characterized in that: the motor of blower fan (2) can place the outside of housing (5).
4, evaporator without frost according to claim 1 is characterized in that: blower fan (2) adopts air draught type or bleed type.
5, evaporator without frost according to claim 1 is characterized in that: cold carrier is air or the good gas of other heat conductivility.
6, evaporator without frost according to claim 1 is characterized in that: according to the volume of gas water capacity, housing (5), place the drier (3) of some.
7, evaporator without frost according to claim 1 is characterized in that: cold storage body is formed gas flow, makes gas form sealing and circulating.
8, evaporator without frost according to claim 1 is characterized in that: the shape of housing (5) can be designed to various, and material is with metal or nonmetal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92115109 CN1081759A (en) | 1992-12-26 | 1992-12-26 | Evaporator without frost |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92115109 CN1081759A (en) | 1992-12-26 | 1992-12-26 | Evaporator without frost |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1081759A true CN1081759A (en) | 1994-02-09 |
Family
ID=4947266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92115109 Pending CN1081759A (en) | 1992-12-26 | 1992-12-26 | Evaporator without frost |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1081759A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300528C (en) * | 2002-11-25 | 2007-02-14 | 国家农产品保鲜工程技术研究中心（天津） | Centrifugal evaporator |
| CN102032745A (en) * | 2009-09-28 | 2011-04-27 | 泰州乐金电子冷机有限公司 | Device for preventing frosting of evaporator for refrigerator |
| CN105928290A (en) * | 2016-04-25 | 2016-09-07 | 江苏大学 | Adsorbing and frost restraining technology based refrigerating system of air-cooled refrigerator |
-
1992
- 1992-12-26 CN CN 92115109 patent/CN1081759A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300528C (en) * | 2002-11-25 | 2007-02-14 | 国家农产品保鲜工程技术研究中心（天津） | Centrifugal evaporator |
| CN102032745A (en) * | 2009-09-28 | 2011-04-27 | 泰州乐金电子冷机有限公司 | Device for preventing frosting of evaporator for refrigerator |
| CN105928290A (en) * | 2016-04-25 | 2016-09-07 | 江苏大学 | Adsorbing and frost restraining technology based refrigerating system of air-cooled refrigerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |