CN102607226B - Short-time isolation gas curtain of refrigeration house and control method thereof - Google Patents
Short-time isolation gas curtain of refrigeration house and control method thereof Download PDFInfo
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- CN102607226B CN102607226B CN 201210128150 CN201210128150A CN102607226B CN 102607226 B CN102607226 B CN 102607226B CN 201210128150 CN201210128150 CN 201210128150 CN 201210128150 A CN201210128150 A CN 201210128150A CN 102607226 B CN102607226 B CN 102607226B
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- 238000002955 isolation Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title abstract description 12
- 238000005057 refrigeration Methods 0.000 title abstract description 11
- 239000006185 dispersion Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 8
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000001788 irregular Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 43
- 238000005516 engineering process Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention provides a short-time isolation gas curtain of a refrigeration house and a control method thereof. The short-time isolation gas curtain comprises a group of strong wind openings arranged at the upper side of a refrigeration house door, wherein the strong wind openings are uniformly distributed from left to right; one group of forced wind returning openings corresponding to the strong wind openings are arranged at the lower side of the refrigeration house door; and the distribution width of the forced wind returning openings is 2-4 times as much as the distribution width of the strong wind openings. The invention provides the short-time isolation gas curtain of the refrigeration house and the control method thereof, and the gas curtain has the advantages of good air flow direction, no irregular air flow direction, small energy consumption and good isolation effect of cold and hot spaces.
Description
Technical field
The present invention relates to a kind of freezer equipment, especially relate to a kind of gas curtain of freezer.
Background technology
Gas curtain is a kind of a kind of device that is used for cutting apart refrigeration space and extraneous space, and it can reduce the circulation exchange of air between the cold and hot space to a certain extent, thereby reduces the loss of energy.Existing gas curtain is generally a venthole of being located at one group or one horizontally set on top, and the opening of venthole down.A greatest problem of this structure is, after the air-flow of its venthole ejection and downside object collide, air-flow just can randomly flow to all directions, when the air-flow that flows to the outside is big, the cold air part that just can drive in the refrigeration space outwards flows, otherwise the hot gas that then can drive extraneous space inwardly flows, and the drive direction of this air-flow is unordered, and this will cause the local heating of refrigeration space.Be that the Chinese patent of CN1200470 discloses a kind of refrigerator that has air curtain generator as publication number.In the uppermost part of refrigerating chamber a steam line that is used for gas curtain has been installed.In this steam line, be provided with cross flow fan, in the termination of the door of the close refrigerating chamber of this steam line an air supply opening arranged.This air supply opening is the narrow slit shape, along the width extension of refrigerating chamber.On the lower surface of steam line inside, be provided with a step at least.The aspirating air pipe of the cooling system in this steam line and the refrigerator communicates.When door is opened, form gas curtain one in the whole unlimited one side of refrigerating chamber, to stop the intrusion of surrounding air.
In order to address the above problem, publication number is the air curtain that 101087547 Chinese patent discloses a kind of multilayer, and this air curtain is in the interface place that first environment under first state and gas is between the second environment under second state at gas and forms an isolated screen.First air-flow of gas is along being guided with first path that parallels with interface between the second environment at first environment substantially, and second air-flow of gas is guided along the alternate path that outwards departs from an angle with first path substantially.The 3rd air-flow of gas is guided along the 3rd path between first path and alternate path, and the 3rd path and first path form first interior angle, and form second interior angle with alternate path.The disclosed refrigerator of this invention has showcase, this showcase has the inner area that limits product display zone, and this product display zone has unlimited anterior and with the mode that expands stream first outlet, second outlet and the 3rd outlet that are used for guiding respectively first air-flow, second air-flow and the 3rd air-flow across the refrigerator front portion.This technical scheme has solved hot-air to a certain extent and has entered in the refrigeration space, but its power requirement is very high, and the loss of energy is very big, and because its air-flow has an outside angle, in actual use, can take a large amount of cold air out of, cause the waste of energy.
Summary of the invention
The present invention solves in the existing gas curtain of existing in prior technology, hot-air is brought in the refrigeration space by the gas curtain air-flow easily, technical problems such as energy loss is big, a kind of good directionality of air-flow is provided, there is not random gas flow, energy loss is little, the gas curtain of isolation in short-term and the control method thereof of the freezer that the isolation effect in cold and hot space is good.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals: a kind of gas curtain of isolation in short-term of freezer, it is characterized in that it comprises one group of high wind mouth being located at the cold-storage door upside, the high wind mouth from left to right evenly distributes, the cold-storage door downside is provided with one group of pressure return air inlet corresponding with described high wind mouth, and the dispersion of distribution of this pressure return air inlet is 2-4 times of the high wind mouth dispersion of distribution.Described high wind mouth can blow out flow velocity air flow stream faster, and described pressure return air inlet by an air pump, can initiatively suck gas.When opening cold-storage door, open the one group of air flow stream straight down that blows out of high wind mouth, open the pressure return air inlet simultaneously, suck the air flow stream that the high wind mouth blows out.Air flow stream is in blowing out process, and its diameter of section can constantly enlarge, and forms a bullet, thus want most gases of air flow stream to introduce, then need will the pressure return air inlet the dispersion of distribution than high wind mouth that designs of the dispersion of distribution big.This structure makes that the directionality of gas curtain is very good, also has simultaneously the problem into freezer that hot gas is held under the arm that causes because of unordered airflow flowing hardly, has reduced energy consumption.
As preferably, described cold-storage door both sides are respectively equipped with the arc facade, two arc facades lean on the spacing of an end in the door less than the spacing of leaning on an end outdoors, be the setting of " eight " font, two arc facade rear sides are provided with vertical air channel, two arc facades end in by door is provided with vertical setting, the narrow slit air outlet that air-out direction is tangent with corresponding arc facade.According to Coanda effect, the gas that narrow slit air outlet of the present invention blows out can flow along two arc facades, and then, this air-flow can drive be located at two gases between the arc facade have one to the outflow trend, but, because the flow velocity of the air flow stream of the gas curtain among the present invention is bigger, and this air flow stream upper end blows out, and introduce the lower end, and its stability is less, air-flow on the cambered surface of both sides can only make air flow stream produce a bending, can not be a large amount of draw air flow stream gas, inevitable, can be not a large amount of yet draw gas in the freezer, certainly, this structure inflow of also having stopped extraneous hot gas fully.Opening in the short time of cold-storage door, its effect meeting of isolating interior or exterior space is very effective.
As preferably, the lower end in vertical air channel of described two arc facade rear sides all is connected with blower fan, and vertically the upper end in air channel links to each other by a cushion chamber of being located at high wind mouth upside.When air-flow enters into the process of cushion chamber, turn back, and height in cushion chamber, occurs and breathe heavily stream, because breathing heavily the stream district, this height do not have air outlet, make it can not have influence on the stability of air-out, and played the current stabilization of the narrow slit air outlet of both sides, the effect of noise abatement.
The present invention also provides the control method of isolating gas curtain in short-term of above-mentioned freezer, and it is finished by following technical proposals: a kind of control method of isolating gas curtain in short-term of freezer is characterized in that it comprises following process:
1, open cold-storage door, touch the fan switch of high wind mouth and pressure return air inlet, the air-out of high wind mouth, and by return air inlet return air;
2, at the high wind mouth with when forcing return air inlet work, start the blower fan in vertical air channel.
As preferably, the blower fan in described vertical air channel is when work, and every 1-3 switch second once.If keep the blower fan continuous operation in vertical air channel for a long time, in practice, it reaches minimum outside air inducing amount to be difficult to control, even may isolate the gas of the air flow stream of a part, and it is drawn, and has reduced the buffer action of air flow stream.And in this programme, vertically this discontinuous work of air channel wind, constantly switch at short notice, make the continuous outwardly-bent fluctuation of air flow stream, after the fluctuation, still can be forced to return air inlet fully and introduce, in the isolation effect that has effectively guaranteed air flow stream, can be good at having guaranteed that ambient atmos can not enter in the freezer space.
The beneficial effect that brings of the present invention is, solved in the existing gas curtain of existing in prior technology, hot-air is brought in the refrigeration space by the gas curtain air-flow easily, technical problems such as energy loss is big, realized a kind of good directionality of air-flow, do not have random gas flow, energy loss is little, the gas curtain of isolation in short-term and the control method thereof of the freezer that the isolation effect in cold and hot space is good.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present invention.
The specific embodiment
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment 1: as shown in Figure 1, the present invention is a kind of gas curtain of isolation in short-term of freezer, it comprises one group of high wind mouth 1 being located at the cold-storage door upside, high wind mouth 1 from left to right evenly distributes, the cold-storage door downside is provided with one group of pressure return air inlet 2 corresponding with described high wind mouth 1, and the dispersion of distribution of this pressure return air inlet 2 is 3 times of the high wind mouth dispersion of distribution.The cold-storage door both sides are respectively equipped with arc facade 3, two arc facades 3 rear sides and are provided with vertical air channel, and vertically the lower end in air channel 6 all is connected with blower fan, and vertically the upper end in air channel 6 links to each other by a cushion chamber 5 of being located at high wind mouth upside.Two arc facades 3 less than the spacing by outdoors an end, are the setting of " eight " font by the spacing of an end in the door, and two arc facades end in by door is provided with vertical setting, the narrow slit air outlet 4 that air-out direction is tangent with arc facade accordingly.
When stating the gas curtain of isolation in short-term of freezer in the use, comprise following process:
1, open cold-storage door, touch the fan switch of high wind mouth and pressure return air inlet, the air-out of high wind mouth, and by return air inlet return air;
2, at the high wind mouth with when forcing return air inlet work, start the blower fan in vertical air channel.
High wind mouth of the present invention can blow out flow velocity air flow stream faster, and described pressure return air inlet by an air pump, can initiatively suck gas.When opening cold-storage door, open the high wind mouth, blow out one group of air flow stream straight down, open the pressure return air inlet simultaneously, suck the air flow stream that the high wind mouth blows out.The gas that the narrow slit air outlet blows out can flow along two arc facades, and then, this air-flow can drive be located at two gases between the arc facade have one to the outflow trend, but, because the flow velocity of the air flow stream of the gas curtain among the present invention is bigger, and this air flow stream upper end blows out, introduce the lower end, its stability is less, and the air-flow on the cambered surface of both sides can only make air flow stream produce a bending, can not be a large amount of draw air flow stream gas, inevitable, can be not a large amount of yet draw gas in the freezer, certainly, this structure has also been stopped the inflow of extraneous hot gas fully.
Embodiment 2:
On the architecture basics of embodiment 1, in the present embodiment, vertically the blower fan in air channel is when work, and per 2 seconds switches once.Vertically this discontinuous work of air channel wind, constantly switch at short notice, make the continuous outwardly-bent fluctuation of air flow stream, after the fluctuation, still can be forced to return air inlet fully introduces, in the isolation effect that has effectively guaranteed air flow stream, can be good at having guaranteed that ambient atmos can not enter in the freezer space.
Claims (2)
1. the gas curtain of isolation in short-term of a freezer, it is characterized in that it comprises one group of high wind mouth (1) of being located at the cold-storage door upside, high wind mouth (1) from left to right evenly distributes, the cold-storage door downside is provided with one group of pressure return air inlet (2) corresponding with described high wind mouth (1), the dispersion of distribution of this pressure return air inlet (2) is 2-4 times of high wind mouth (1) dispersion of distribution, described cold-storage door both sides are respectively equipped with arc facade (3), two arc facades (3) lean on the spacing of an end in the door less than the spacing of leaning on an end outdoors, be the setting of " eight " font, two arc facade rear sides are provided with vertical air channel (6), two arc facades end in by door is provided with vertical setting, the narrow slit air outlet (4) that air-out direction is tangent with corresponding arc facade (3).
2. the gas curtain of isolation in short-term of a kind of freezer according to claim 1 is characterized in that the lower end in vertical air channel of described two arc facade rear sides all is connected with blower fan, and vertically the upper end in air channel links to each other by a cushion chamber (5) of being located at high wind mouth upside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210128150 CN102607226B (en) | 2012-04-27 | 2012-04-27 | Short-time isolation gas curtain of refrigeration house and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210128150 CN102607226B (en) | 2012-04-27 | 2012-04-27 | Short-time isolation gas curtain of refrigeration house and control method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102607226A CN102607226A (en) | 2012-07-25 |
| CN102607226B true CN102607226B (en) | 2013-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201210128150 Active CN102607226B (en) | 2012-04-27 | 2012-04-27 | Short-time isolation gas curtain of refrigeration house and control method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106766483A (en) * | 2016-12-26 | 2017-05-31 | 天津商业大学 | Energy-saving cold storage cabinet |
| KR102090118B1 (en) * | 2019-06-13 | 2020-03-17 | 김재중 | Dock Shelter Module with Double Gate and Air Curtain |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54132849A (en) * | 1978-04-05 | 1979-10-16 | Matsushita Electric Ind Co Ltd | Storage box |
| JPS63156963A (en) * | 1986-12-22 | 1988-06-30 | Ebara Corp | Air curtain system |
| CA2499090A1 (en) * | 2004-03-02 | 2005-09-02 | Asi Technologies, Inc. | Air curtain doorway |
| KR100596244B1 (en) * | 2004-04-29 | 2006-07-03 | 엘지전자 주식회사 | Air conditioner |
| WO2009051482A1 (en) * | 2007-10-16 | 2009-04-23 | Handelsmaatschappij Willy Deweerdt Bvba | Device for generating an air wall |
| JP3141914U (en) * | 2008-03-12 | 2008-05-22 | 株式会社三栄冷暖工業 | Air curtain device |
| CN102374602A (en) * | 2011-11-09 | 2012-03-14 | 上海海洋大学 | Novel wind-curtain device for refrigerator |
| CN202562176U (en) * | 2012-04-27 | 2012-11-28 | 浙江科技学院 | Isolation gas curtain for refrigerating storage |
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Effective date of registration: 20170815 Address after: 310023 Xihu District, Zhejiang Province, and the left road, No. 318, Co-patentee after: Zhejiang micro Cold Chain Technology Co., Ltd. Patentee after: Zhejiang University of Science and Technology Address before: 310023 Xihu District, Zhejiang Province, and the left road, No. 318, Co-patentee before: Hangzhou Wason Environmental Technology Co., Ltd. Patentee before: Zhejiang University of Science and Technology |