CN102798191A - Double-layer air curtain system for refrigeration storage - Google Patents
Double-layer air curtain system for refrigeration storage Download PDFInfo
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- CN102798191A CN102798191A CN2012102530681A CN201210253068A CN102798191A CN 102798191 A CN102798191 A CN 102798191A CN 2012102530681 A CN2012102530681 A CN 2012102530681A CN 201210253068 A CN201210253068 A CN 201210253068A CN 102798191 A CN102798191 A CN 102798191A
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Abstract
The invention relates to a double-layer air curtain system for a refrigeration storage, and the double-layer air curtain system is provided with two different air curtain devices. The system is composed of a cross-flow air curtain machine, a centrifugal air curtain machine, a grating, a flow guide plate, manual-type adjusting switches, a hanging plate, a fastening screw, and a wiring terminal. In the system, the cross-flow air curtain machine is installed on the outside wall body of the refrigeration storage, a cross-flow fan is used for injecting a normal-temperature airflow so as to form an air curtain, and the air curtain is used for preventing hot air outside the storage from intruding into the storage; simultaneously, the centrifugal air curtain machine is installed on the inside wall body of the refrigeration storage, a centrifugal fan is used for injecting a low-temperature airflow, and the low-temperature airflow is used for preventing cold air in the storage from flowing outwards, and maintaining a low-temperature environment in the storage. The manual-type adjusting switches at the both sides of each of the air curtain machines are used for adjusting the air supply speed and the air supply angle of the air curtain, so that the heat-insulating effect of the air curtain can be improved. By virtue of the system, the sealing performance of the air curtain of the refrigeration storage is improved, air heat and mass exchange in the areas of the both sides of the air curtain is effectively suppressed, and an energy-saving effect is achieved; simultaneously, the system has dustproof, anti-pollution, anti-mosquito effects and the like, and is especially suitable for refrigeration storages for storing foods.
Description
Technical field
The present invention relates to be equipped with the freezer double-deck air curtain system of two kinds of different air curtain devices, can reduce environment generation caloic exchange in external environment air and the storehouse, improve the air curtain closed performance; Keep the temperature control requirement of freezer storehouse, realize cold store energy saving; Guarantee the quality of food in the storehouse; The system that has effects such as dustproof, anti-pollution, insect protected again.
Background technology
Freezer is the building of preserved food products under the cryogenic conditions, also is the important ring in the cold chain.Along with the raising of national economy and living standards of the people, the refrigeration industry has obtained development rapidly, has meanwhile caused increasing considerably of energy consumption.Thereby transform the existing freezer of China freezer is carried out energy saving optimizing in design process, improve energy utilization rate, become the important topic of freezer industry development.In the running of freezer, because the walking about or the turnover of food of personnel, the gate, porch needs often to open, and when the storehouse door is opened, in the hot and humid air infiltration storehouse, causes the storehouse temperature rise in the storehouse outside, influences food quality; After cold air contacted with the storehouse outer air and mixes in the storehouse, doorways will form mist, influences staff's sight line, causes the accident easily; For guick freezing room, the wet exchange of a large amount of heat is frozen Ku Men top, floor and ceiling place, causes the storehouse door to damage; Main is air-cooler or the frosting of evaporimeter comb, and heat transfer deterioration causes storehouse temperature fluctuation, has increased freezer operation and defrosting energy consumption.Therefore,, reduce the exchange of external environment air and internal environment generation caloic, keep indoor temperature control requirement, often air curtain is set in the porch in order to realize cold store energy saving.Air curtain is to eject airflow through tubular wine wheel to form air surface; The gas flow that the air lock inside and outside differential pressure causes; Thereby suppress the exchange of air curtain two side areas generation caloic; Reach energy-conservation effect, have the effect of dustproof, anti-pollution, anti-mosquitos and flies simultaneously again, improved the security that freezer is stored.
For low-temperature cold store, its cold is precious more, and the food of preservation is also more valuable, and also higher to the requirement of preserving food, storehouse temperature can not have too big fluctuation.Therefore, the interrupting performance of air curtain is required higher, can not occur influencing the storehouse temperature in the hot-air intrusion freezer in the storehouse outside.At present, the individual layer air curtain system is mainly adopted in the freezer porch, but because air curtain flows and the complexity of heat exchange, a lot of air curtains fail to reach desirable effect.
The patent of invention of Xie Jing: freezer is to intercept ambient air outside through PVC curtain and side blown type air curtain to invade freezer with novel air curtain apparatus (CN 102374602 A); Play dual heat insulation effect; Simultaneously the PVC curtain has cut off contacting of air curtain and surrounding air again, can reduce entering freezers such as insect, muroid simultaneously again.But external Ligtenburg finds that PVC strip curtain heat-insulating efficiency is low, dangerous, unhygienic; And can influence forklift operator person's the visual field, and its blowing and drawing type air curtain need increase extra intake line, not only power consumption; And complex structure, break down easily.
Summary of the invention
To the weak point of prior art, this paper designs the freezer double-deck air curtain system that two kinds of different air curtain devices are installed that adopts.
The technical scheme that the present invention takes is: this system comprises tubular Air curtain machine 8, centrifugal type air curtain machine 2, grid 1, grid 9, binding post 3, binding post 7, trip bolt 14, link plate 5, body of wall 6, type hand by-pass cock 11, type hand by-pass cock 18, deflector 12, deflector 17, freezer inlet 15, tubular Air curtain machine incoming flow airflow direction 10, tubular Air curtain machine jet airflow direction 13, centrifugal type air curtain machine incoming flow airflow direction 19, centrifugal type air curtain machine jet airflow direction 16; Tubular Air curtain machine is installed in the outside of freezer inlet through link plate and trip bolt; Centrifugal type air curtain machine is installed on the inboard body of wall of freezer through link plate and trip bolt; The front end of centrifugal type air curtain machine and tubular Air curtain machine all has the grid of screen pack; The upper end is the binding post that connects power supply; Both sides are by-pass cockes, air outlet place mounting guiding board.
Outside wall at the freezer inlet is installed tubular Air curtain machine; Storehouse external environment air flows into Air curtain machine through the grid air inlet; Eject the normal temperature air-flow through cross flow fan and form in the outer hot-air intrusion of the air curtain obstruct freezer storehouse, mounting guiding board changes the wind direction of air curtain in the air outlet position, regulates air supply velocity through the type hand by-pass cock; And to freezer lateral direction adjusting air curtain wind direction, thereby the sealing effect of raising normal temperature air curtain.
At the inboard wall of freezer inlet centrifugal type air curtain machine is installed simultaneously; Cryogenic air flows into Air curtain machine through the grid air inlet in the storehouse; Centrifugal blower ejects low-temperature airflow and intercepts that cold air flows to outside the storehouse in the storehouse outward, and mounting guiding board changes the wind direction of air curtain in the air outlet position, through type hand by-pass cock adjusting air supply velocity; And side direction is regulated the air curtain wind direction in freezer; Intercept that cold air flows to outside the storehouse in the freezer outward, improve the cold air circulation, thereby guarantee the uniformity of velocity field and temperature field in the storehouse.
Characteristics of the present invention are: the double-deck air curtain can reduce cold air generation heat and mass exchange in external environment air and the storehouse better, improves the air curtain closed performance.Outer normal temperature air curtain intercepts the freezer hot outside and invades in the storehouse, and it is not very high that blast and wind speed are required, thus select that tubular Air curtain machine, the characteristics of this blower fan are that impeller diameter is little, length is big, blast is low, rotating speed is low for use, power saving, low price.And internal layer Cryogenic air curtain is to improve the cold air circulation; Guarantee the uniformity of velocity field and temperature field in the storehouse; Therefore select the higher centrifugal type air curtain machine of wind speed for use, be characterized in that impeller diameter is big, length is short, blast is big, wind speed is high, barrier effect is good, noise is little.Separated by a distance between two kinds of air curtains, thus avoided factors such as temperature, humidity different and interfere with each other.
Another characteristics of the present invention are in tubular Air curtain machine and centrifugal type air curtain machine air outlet place mounting guiding board; Type hand by-pass cock through the Air curtain machine left and right sides is set at 8 ~ 12m/s with the air supply velocity of tubular Air curtain machine; Deflector is to 10 ~ 20 ° of freezer outside adjustment; Can improve the closure of air curtain, the air supply velocity with centrifugal type air curtain machine is set at 12 ~ 16m/s simultaneously, and deflector is to 10 ~ 20 ° of the inboard adjustment of freezer; Intercept that cold air flows to outside the storehouse in the freezer outward, guarantee the uniformity of velocity field and temperature field in the storehouse.When Air curtain machine was not worked, air deflector can avoid dust to get into Air curtain machine in the horizontal closed state, most importantly avoids cold air frosting in centrifugal type air curtain machine in the storehouse, causes the damage of machine.The front end of tubular Air curtain machine and centrifugal type air curtain machine is all installed grid; Grid has screen pack; Effectively dust, booty get into Air curtain machine; The porosity of grid is defined as the ratio of circulation area and the grid gross area, and the porosity of tubular Air curtain machine grid is 0.4 ~ 0.6, and the porosity of centrifugal type air curtain machine grid is 0.7 ~ 0.8.
This freezer double-deck air curtain system comprises tubular Air curtain machine, centrifugal type air curtain machine, grid, binding post, trip bolt, link plate, body of wall, type hand by-pass cock, deflector, freezer inlet, tubular Air curtain machine incoming flow airflow direction, tubular Air curtain machine jet airflow direction, centrifugal type air curtain machine incoming flow airflow direction, centrifugal type air curtain machine jet airflow direction.Tubular Air curtain machine and centrifugal type air curtain machine are installed on the outside and inboard body of wall of freezer inlet respectively through link plate and trip bolt; The front end of Air curtain machine is installed the grid that has screen pack; The upper end is the binding post that connects power supply; Both sides are type hand by-pass cockes, air outlet place mounting guiding board.
Characteristics such as it is energy-conservation, simple in structure, easy to operate that the present invention has are particularly suitable for storing the freezer of food.
Description of drawings
Accompanying drawing 1 is the freezer double-deck air curtain system that two kinds of different air curtain devices are installed of the present invention.
In the accompanying drawing 1: in this system 1; 9 is that grid, 2 is centrifugal type air curtain machine, 3; 7 is binding post, 4; 14 be trip bolt, 5 for link plate, 6 for body of wall, 8 for tubular Air curtain machine, 10 for tubular Air curtain machine incoming flow airflow direction, 11,18 be that type hand by-pass cock, 12,17 be that deflector, 13 enters the mouth, 16 is that centrifugal type air curtain machine jet airflow direction, 19 is a centrifugal type air curtain machine incoming flow airflow direction for freezer for tubular Air curtain machine jet airflow direction, 15.
In the accompanying drawing 2: be Fig. 1 freezer double-deck air curtain system right view.
In the accompanying drawing 3: be Fig. 1 freezer double-deck air curtain system left view.
Concrete technical scheme
Through embodiment characteristic of the present invention and other correlated characteristics are done further explain below in conjunction with accompanying drawing, so that technical staff's of the same trade understanding.
Embodiment 1: see accompanying drawing 1; Freezer double-deck air curtain system mainly comprises grid 1, grid 9, centrifugal type air curtain machine 2, binding post 3, binding post 7, trip bolt 4, trip bolt 14, link plate 5, body of wall 6, tubular Air curtain machine 8, tubular Air curtain machine incoming flow airflow direction 10, type hand by-pass cock 11, type hand by-pass cock 18, deflector 12, deflector 17, tubular Air curtain machine jet airflow direction 13, freezer inlet 15, centrifugal type air curtain machine jet airflow direction 16, centrifugal type air curtain machine incoming flow airflow direction 19.
In the system, tubular Air curtain machine 8 is fixed on the outside body of wall 6 of freezer inlet 15 through link plate 5 and trip bolt 14, storehouse external environment air is flowed into by grid 9 air inlets of Air curtain machine front side; Grid has screen pack, can invade by the wall dust, and air is through behind the cross flow fan; Discharge from the air outlet of Air curtain machine, mounting guiding board 12 in the air outlet position, and regulating air supply velocity through the type hand by-pass cock 11 of Air curtain machine both sides is 8 ~ 12m/s; And adjust deflector 12 the air curtain wind direction is adjusted 10 ~ 20 ° to the freezer outside, thereby form the normal temperature air curtain, play the effect of isolating in the freezer hot outside entering freezer.
Simultaneously centrifugal type air curtain machine 2 is fixed on through link plate 5 and trip bolt 4 on the inboard body of wall 6 of freezer inlet 15, cold air flows through blade by the grid 1 air inlet entering of Air curtain machine front side along the radial direction of impeller in the storehouse in; Being pooled to air outlet in the outlet of blade along the direction of spiral case discharges; Mounting guiding board 17 in the air outlet position, and regulating air supply velocity through the type hand by-pass cock 18 of Air curtain machine both sides is 12 ~ 16m/s; And adjustment deflector 17 is adjusted 10 ~ 20 ° with the air curtain wind direction to the freezer inboard; Thereby form the Cryogenic air curtain, intercept that cold air flows to outside the storehouse in the freezer outward, guarantee the uniformity of velocity field and temperature field in the storehouse.When Air curtain machine 8 was not worked with Air curtain machine 2, deflector 12 was in the horizontal closed state with deflector 17, can avoid dust to get into Air curtain machine, most importantly avoided cold air frosting in centrifugal type air curtain machine in the storehouse, caused the damage of machine.
Claims (8)
1. freezer double-deck air curtain system; It is characterized in that: this system comprises tubular Air curtain machine (8), centrifugal type air curtain machine (2), grid (1), grid (9), binding post (3), binding post (7), trip bolt (14), link plate (5), body of wall (6), type hand by-pass cock (11), type hand by-pass cock (18), deflector (12), deflector (17), freezer inlet (15), tubular Air curtain machine incoming flow airflow direction (10), tubular Air curtain machine jet airflow direction (13), centrifugal type air curtain machine incoming flow airflow direction (19), centrifugal type air curtain machine jet airflow direction (16); Tubular Air curtain machine is installed in the outside of freezer inlet through link plate and trip bolt; Centrifugal type air curtain machine is installed on the inboard body of wall of freezer through link plate and trip bolt; The front end of centrifugal type air curtain machine and tubular Air curtain machine all has the grid of screen pack; The upper end is the binding post that connects power supply; Both sides are by-pass cockes, air outlet place mounting guiding board.
2. freezer double-deck air curtain as claimed in claim 1 system; It is characterized in that: tubular Air curtain machine is to utilize cross flow blower to eject the normal temperature air-flow to form in the air curtain obstruct freezer hot outside intrusion storehouse, and centrifugal type air curtain machine utilizes centrifugal blower to eject the interior cold air of low-temperature airflow obstruct freezer and flows to outside the storehouse outward.
3. freezer double-deck air curtain as claimed in claim 1 system, it is characterized in that: described grid has screen pack, and the porosity of tubular Air curtain machine grid is 0.4 ~ 0.6, and the porosity of centrifugal type air curtain machine grid is 0.7 ~ 0.8.
4. freezer double-deck air curtain as claimed in claim 1 system is characterized in that: the air supply velocity of the tubular Air curtain machine that freezer is outer is set at 8 ~ 12m/s, and the air supply velocity of the centrifugal type air curtain machine in the freezer is set at 12 ~ 16m/s.
5. freezer double-deck air curtain as claimed in claim 1 system, it is characterized in that: described deflector is installed in tubular Air curtain machine and centrifugal type air curtain machine air outlet place, and the angle of deflector can be regulated arbitrarily.
6. freezer double-deck air curtain as claimed in claim 5 system; It is characterized in that: during Air curtain machine work; The deflector of tubular Air curtain machine is adjusted 10 ~ 20 ° to the freezer lateral direction, and deflector side direction in freezer of centrifugal type air curtain machine is adjusted 10 ~ 20 °.
7. freezer double-deck air curtain as claimed in claim 5 system, it is characterized in that: when Air curtain machine was not worked, deflector all was in the horizontal closed state.
8. freezer double-deck air curtain as claimed in claim 1 system is characterized in that: the by-pass cock described in two kinds of Air curtain machines is that the type hand by-pass cock is arranged, and is used to regulate air curtain air supply velocity and angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102530681A CN102798191A (en) | 2012-07-22 | 2012-07-22 | Double-layer air curtain system for refrigeration storage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102530681A CN102798191A (en) | 2012-07-22 | 2012-07-22 | Double-layer air curtain system for refrigeration storage |
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| CN102798191A true CN102798191A (en) | 2012-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012102530681A Pending CN102798191A (en) | 2012-07-22 | 2012-07-22 | Double-layer air curtain system for refrigeration storage |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848636A (en) * | 2015-06-08 | 2015-08-19 | 上海海洋大学 | Flow scattering partition for improving uniformity of air flow of refrigeration house |
| CN106907895A (en) * | 2017-04-18 | 2017-06-30 | 上海海洋大学 | A kind of New-style refrigeration house pressure balance window |
| CN107131559A (en) * | 2017-05-19 | 2017-09-05 | 珠海格力电器股份有限公司 | A kind of indoor apparatus of air conditioner, air conditioner and integral type kitchen appliance |
| CN107259879A (en) * | 2016-03-31 | 2017-10-20 | 松下知识产权经营株式会社 | The method of operation of showcase and showcase |
| CN108116210A (en) * | 2016-11-28 | 2018-06-05 | 郑州宇通客车股份有限公司 | Air-curtain door and the vehicle using the air-curtain door |
| CN108120217A (en) * | 2018-01-25 | 2018-06-05 | 廊坊康平空调制造有限公司 | A kind of more air-flow air curtains of freezer gate antifogging type |
| CN108518792A (en) * | 2018-06-28 | 2018-09-11 | 广州丹德自动化科技有限公司 | A kind of oppositely-blowing single cycle air curtain unit |
| CN108759271A (en) * | 2018-06-28 | 2018-11-06 | 广州丹德自动化科技有限公司 | A kind of oppositely-blowing three-circulation wind curtain unit |
| CN108759270A (en) * | 2018-06-28 | 2018-11-06 | 广州丹德自动化科技有限公司 | A kind of oppositely-blowing Two-way Cycle air curtain unit |
| CN108759253A (en) * | 2018-08-13 | 2018-11-06 | 天津商业大学 | A kind of freezer air curtain system forming positive pressure space |
| CN112240672A (en) * | 2020-11-20 | 2021-01-19 | 厦门陆原建筑设计院有限公司 | Adjusting type double-channel air curtain for refrigeration house |
| CN112378147A (en) * | 2020-10-26 | 2021-02-19 | 中国港湾工程有限责任公司 | Cold storage |
| CN113048610A (en) * | 2021-03-30 | 2021-06-29 | 武汉理工大学 | Vortex ring air curtain wall |
| CN114440337A (en) * | 2022-01-27 | 2022-05-06 | 北京科技大学 | Intelligent sensing air curtain isolation device and isolation method for clean room |
| CN115076818A (en) * | 2022-07-26 | 2022-09-20 | 珠海格力电器股份有限公司 | Air conditioning range hood and control method and control device of air conditioning range hood |
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| JP2007120779A (en) * | 2005-10-25 | 2007-05-17 | Sanwa Shutter Corp | Closing device |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848636A (en) * | 2015-06-08 | 2015-08-19 | 上海海洋大学 | Flow scattering partition for improving uniformity of air flow of refrigeration house |
| CN107259879B (en) * | 2016-03-31 | 2021-04-06 | 松下知识产权经营株式会社 | Showcase and method for operating showcase |
| CN107259879A (en) * | 2016-03-31 | 2017-10-20 | 松下知识产权经营株式会社 | The method of operation of showcase and showcase |
| CN108116210A (en) * | 2016-11-28 | 2018-06-05 | 郑州宇通客车股份有限公司 | Air-curtain door and the vehicle using the air-curtain door |
| CN106907895A (en) * | 2017-04-18 | 2017-06-30 | 上海海洋大学 | A kind of New-style refrigeration house pressure balance window |
| CN107131559A (en) * | 2017-05-19 | 2017-09-05 | 珠海格力电器股份有限公司 | A kind of indoor apparatus of air conditioner, air conditioner and integral type kitchen appliance |
| CN107131559B (en) * | 2017-05-19 | 2023-06-06 | 珠海格力电器股份有限公司 | Air conditioner indoor unit, air conditioner and integrated kitchen appliance |
| CN108120217A (en) * | 2018-01-25 | 2018-06-05 | 廊坊康平空调制造有限公司 | A kind of more air-flow air curtains of freezer gate antifogging type |
| CN108120217B (en) * | 2018-01-25 | 2023-01-17 | 廊坊康平空调制造有限公司 | Anti-fog type multi-airflow air curtain for door of refrigeration house |
| CN108518792A (en) * | 2018-06-28 | 2018-09-11 | 广州丹德自动化科技有限公司 | A kind of oppositely-blowing single cycle air curtain unit |
| CN108759271A (en) * | 2018-06-28 | 2018-11-06 | 广州丹德自动化科技有限公司 | A kind of oppositely-blowing three-circulation wind curtain unit |
| CN108759270A (en) * | 2018-06-28 | 2018-11-06 | 广州丹德自动化科技有限公司 | A kind of oppositely-blowing Two-way Cycle air curtain unit |
| CN108759253B (en) * | 2018-08-13 | 2020-06-26 | 天津商业大学 | Refrigeration house air curtain system capable of forming positive pressure space |
| CN108759253A (en) * | 2018-08-13 | 2018-11-06 | 天津商业大学 | A kind of freezer air curtain system forming positive pressure space |
| CN112378147A (en) * | 2020-10-26 | 2021-02-19 | 中国港湾工程有限责任公司 | Cold storage |
| CN112378147B (en) * | 2020-10-26 | 2022-04-22 | 中国港湾工程有限责任公司 | Cold storage |
| CN112240672A (en) * | 2020-11-20 | 2021-01-19 | 厦门陆原建筑设计院有限公司 | Adjusting type double-channel air curtain for refrigeration house |
| CN112240672B (en) * | 2020-11-20 | 2024-03-19 | 国机陆原工程设计研究有限公司 | Adjustable double-channel air curtain for refrigeration house |
| CN113048610A (en) * | 2021-03-30 | 2021-06-29 | 武汉理工大学 | Vortex ring air curtain wall |
| CN114440337A (en) * | 2022-01-27 | 2022-05-06 | 北京科技大学 | Intelligent sensing air curtain isolation device and isolation method for clean room |
| CN115076818A (en) * | 2022-07-26 | 2022-09-20 | 珠海格力电器股份有限公司 | Air conditioning range hood and control method and control device of air conditioning range hood |
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Application publication date: 20121128 |