CN207702809U - A kind of instant freezer beveling item seam nozzle arrangements - Google Patents
A kind of instant freezer beveling item seam nozzle arrangements Download PDFInfo
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- CN207702809U CN207702809U CN201721640407.6U CN201721640407U CN207702809U CN 207702809 U CN207702809 U CN 207702809U CN 201721640407 U CN201721640407 U CN 201721640407U CN 207702809 U CN207702809 U CN 207702809U
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- nozzle
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- transfer plate
- diversion trench
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- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The utility model is related to a kind of instant freezer beveling items to stitch nozzle arrangements, including several moving direction uniform parallels along frozen product transfer plate band V-type diversion trench arranged and the item being connected to the lower end of V-type diversion trench stitch nozzle；V-type diversion trench includes two pieces of stripe boards of relative tilt setting, and the cross section of V-type diversion trench is rectangle, and the longitudinal section of width direction is inverted trapezoidal, and the top of adjacent two V-types diversion trench is connected with tablet；It includes two pieces of stripe boards relatively disposed in parallel that item, which stitches nozzle, and the upper end of two pieces of stripe boards of item seam nozzle is connect with the lower end of two pieces of stripe boards of V-type diversion trench respectively.It chamfers item and stitches nozzle, the central point that two pieces of stripe board lower ends of nozzle are stitched from item symmetrically chamfers to be formed to both ends.Above-mentioned technical proposal provided by the utility model can effectively improve the uniformity of frozen product temperature-fall period, improve traditional structure larger difference existing for frozen product rate of temperature fall at different location in food product refrigeration process, improve frozen product quality.
Description
Technical field
The utility model is related to fast food freezing technical fields, and nozzle knot is stitched more particularly to a kind of instant freezer beveling item
Structure.
Background technology
Air blast instant freezer is the commonly used equipment of quick-frozen food manufacture field, and impact type quick freezing machine therein is higher right with its
The object that the stream coefficient of heat transfer increasingly becomes instant freezer manufacturing firm and researcher is paid close attention to.In instant freezer plenum chamber
It is the key that realize impact effect, and impact effect largely depends on that air-flow releases high-speed flow by nozzle arrangements
In the structure and size of nozzle arrangements.The nozzle arrangements of existing impact type quick freezing machine are mostly round hole plank frame, however this
Kind structure has that frozen region frozen product temperature-fall period uniformity is relatively low.
Invention content
The purpose of this utility model is at least that provide a kind of frozen region frozen product temperature-fall period uniformity of capable of improving
Instant freezer stitches nozzle arrangements with beveling item.
To realize that above-mentioned mesh, the utility model provide a kind of instant freezer beveling item seam nozzle arrangements, including several edges
The V-type diversion trench of the moving direction uniform parallel arrangement of frozen product transfer plate band and the item seam spray being connected to the lower end of V-type diversion trench
Mouth；V-type diversion trench includes two pieces of stripe boards of relative tilt setting, and the length direction of the stripe board is located at horizontal direction, V-type
The cross section of diversion trench is rectangle, and the longitudinal section of width direction is inverted trapezoidal, and the top of adjacent two V-types diversion trench is with tablet phase
Even；It includes relatively parallel two be vertically arranged piece stripe board that item, which stitches nozzle, and the length direction of the stripe board is located at horizontal direction,
The upper end of two pieces of stripe boards of item seam nozzle is connect with the lower end of two pieces of stripe boards of V-type diversion trench respectively.The item stitches nozzle
Nozzle is stitched for beveling item, the central point that two pieces of stripe board lower ends of nozzle are stitched from item symmetrically chamfers to be formed to both ends, and Ψ is compared in cutting
It is nozzle ends by the ratio of height at cutting-height and nozzle longitudinal center, 1 >=Ψ >=0.
In one embodiment, the length of the item seam nozzle is 1000-2000mm, and width 3-10mm is highly
20-40mm；It is 5-60mm that item, which stitches nozzle and the spacing of transfer plate band below, and the spacing is that item stitches nozzle and transfer plate band
Between most short vertical range.
In one embodiment, the length of the item seam nozzle is 1200-1800mm, and width 4-7mm is highly
25-35mm；It is 5-30mm that item, which stitches nozzle and the spacing of transfer plate band below,.
In one embodiment, the length of the item seam nozzle is 1500mm, width 5mm, is highly 30mm；Item stitches
The spacing of nozzle and transfer plate band below is 10mm.
In one embodiment, work as Hs<When 10,1>Ψ0>0, wherein Hs are that item stitches nozzle and transfer plate below
The ratio of the spacing of band and the width of item seam nozzle, Ψ0For critical cutting ratio, as Ψ=Ψ0When, freeze on instant freezer transfer plate band
The heat exchange uniformity in region is best；The spacing is the most short vertical range between item seam nozzle and transfer plate band.
In one embodiment, work as Hs<When 10, Ψ0Relation formula with Hs is Ψ0=0.001Hs4+0.0349 Hs3-
0.4127 Hs2+1.8689 Hs-1.9617。
In one embodiment, as Hs >=10, Ψ0=0, wherein Hs are that item stitches nozzle and transfer plate band below
Spacing and item seam nozzle width ratio, Ψ is nozzle ends by the ratio of height at cutting-height and nozzle longitudinal center
Value, the spacing are the most short vertical range between item seam nozzle and transfer plate band.
Above-mentioned technical proposal provided by the utility model can effectively improve the uniformity of frozen product temperature-fall period, improve and pass
Structure of uniting larger difference existing for frozen product rate of temperature fall at different location in food product refrigeration process, improves frozen product matter
Amount.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the utility model fluidic nozzle configurations.
Fig. 2 is the main view planar structure schematic diagram of the utility model fluidic nozzle configurations.
Fig. 3 is the side view planar structure schematic diagram of the utility model fluidic nozzle configurations.
When Fig. 4 is Hs=2, difference cutting is than the Nu number trend charts at x/s=0 under the conditions of Ψ and x/s=150.
When Fig. 5 is Hs=4, difference cutting is than the Nu number trend charts at x/s=0 under the conditions of Ψ and x/s=150.
When Fig. 6 is Hs=6, difference cutting is than the Nu number trend charts at x/s=0 under the conditions of Ψ and x/s=150.
When Fig. 7 is Hs=8, difference cutting is than the Nu number trend charts at x/s=0 under the conditions of Ψ and x/s=150.
When Fig. 8 is Hs=10, difference cutting is than the Nu number trend charts at x/s=0 under the conditions of Ψ and x/s=150.
When Fig. 9 is Hs=12, difference cutting is than the Nu number trend charts at x/s=0 under the conditions of Ψ and x/s=150.
Figure 10 is that scatter chart is compared in critical cutting.
Specific implementation mode
Below in conjunction with the accompanying drawings, by taking specific embodiment as an example, the embodiment of the utility model is described in detail.
As shown in Figs. 1-3, the utility model instant freezer beveling item seam nozzle arrangements include several along frozen product transfer plate band 3
Moving direction（Direction shown in Fig. 1 arrows）It the V-type diversion trench 1 of uniform parallel arrangement and is connected to the lower end of V-type diversion trench 1
Item stitches nozzle 2.V-type diversion trench 1 includes two pieces of stripe boards of relative tilt setting, and cross section is rectangle, and width direction is indulged
Section is inverted trapezoidal, and the top of adjacent two V-types diversion trench 1 is connected with tablet.It includes relatively parallel be vertically arranged that item, which stitches nozzle 2,
The upper end of two pieces of stripe boards, two pieces of stripe boards of item seam nozzle 2 is connect with the lower end of two pieces of stripe boards of V-type diversion trench 1 respectively.
The item seam nozzle is that beveling item stitches nozzle, and the central point that two pieces of stripe board lower ends of nozzle are stitched from item symmetrically chamfers shape to both ends
At it is nozzle ends by the ratio of height at cutting-height and nozzle longitudinal center, 1 >=Ψ >=0 to cut than Ψ.Carry out flash-pot
Cryogenic air boosted and flowed out after the wind turbine sucking of instant freezer, by the laggard incident flow nozzle of plenum chamber, sprayed by nozzle
Evaporator is exited into from the outlet of nozzle arrangements to exchange heat, then sucked again by wind turbine and enter next cycle after penetrating.
It compares with traditional round hole plank frame, using above-mentioned fluidic nozzle configurations provided by the utility model,
The jet impulse speed that transfer plate belt surface can be improved to improve the Nu numbers of transmission belt surface, and enhances on conveyer belt
The heat exchange of square frozen region, to improve the freezing rate of frozen product.Fluidic nozzle configurations provided by the utility model can be with simultaneously
Significant increase instant freezer width direction heat exchange uniformity, you can to reinforce freezing for frozen product of the transfer plate with both sides and center
Rate consistency further promotes frozen product greater homogeneity.
Consider heat transfer effect and fan energy consumption, based on reduction fan energy consumption as possible and increases frozen region heat exchange
Under the conditions of promoted transfer plate belt surface heat exchange uniformity, preferred stripe stitch nozzle 2 a length of 1000-2000mm, width 3-10mm,
A height of 20-40mm, item stitch the spacing H of nozzle 2 and frozen product transfer plate band 3 below（Most short vertical range between the two）For 5-
60mm。
Studies have shown that as a length of 1200-1800mm of item seam nozzle, width 4-7mm, a height of 25-35mm, item stitch nozzle 2
When spacing H with the frozen product transfer plate band 3 immediately below it is 5-30mm, better effect is can get, wherein best value is：Item
A length of 1500mm of nozzle 2, width 5mm, a height of 30mm are stitched, item stitches the spacing of nozzle 2 and the frozen product transfer plate band 3 immediately below it
H is 10mm, can be distributed the heat exchange uniformity with good transfer plate belt surface in larger transfer plate belt surface Nu numbers at this time
Under the conditions of obtain minimum fan energy consumption.
On the basis of further research, inventor has found, nozzle 2 and the spacing H and nozzle width S of transfer plate band 3
Ratio Hs（Hs=H/s）Variation affect the uniformity of frozen product temperature-fall period, and show following rule：Work as Hs<When 10, edge
Direction shown in the width direction of transfer plate band 3, that is, Fig. 3 arrows（The direction is also cross-wind direction simultaneously）, the surface of transfer plate band 3
There are notable differences for heat transfer intensity, as Hs >=10, the heat transfer intensity at the surface different location of transfer plate band 3 then show compared with
Good uniformity.From figure 3, it can be seen that cutting is nozzle ends by height K at cutting-height T and nozzle longitudinal center than Ψ
Ratio, Ψ=T/K.
Further to improve the uniformity of heat transfer intensity, the i.e. uniformity of frozen product temperature-fall period, inventor stitches nozzle 2 to item
In different cuttings data processing has been carried out than the data calculated under the conditions of Ψ and different Hs.When Fig. 4-9 is that Hs changes, difference is cut
It cuts than the Nu number trend charts at x/s=0 under the conditions of Ψ and x/s=150.According to Fig. 4-9 it is found that according to x/s=0 and x/s=150
The Nu numbers in source are equal to determine critical cutting ratio Ψ 0.As Ψ=Ψ 0, the heat exchange of frozen region is equal on instant freezer transfer plate band
Even property is best.
Wherein, Ψ is compared in cutting（Ψ=T/K）It is nozzle ends by the ratio of height K at cutting-height T and nozzle longitudinal center
Value, Nu numbers are nusselt number（Nusselt number）, X is the coordinate value for transmitting plate width direction, 4 points of centerline for x/s=
150 position, transfer plate is with the position that side is x/s=0.It can be seen that from Fig. 4-9：Work as Hs<When 10, Ψ=0, along cross-wind direction
There are notable differences for transfer plate belt surface heat transfer intensity, i.e., transfer plate belt surface Nu numbers are significantly greater than x/s=150 at x/s=0
Place；Work as Hs<When 10, with the increase of Ψ, continuously decreased along cross-wind direction transfer plate belt surface heat transfer intensity otherness, when more than
Critical cutting ratio Ψ0Later, steel strip surface Nu numbers are less than at x/s=150 at x/s=0.At x/s=0 and the points of x/s=150 two
Nu numbers are equal to determine critical cutting ratio Ψ0.Therefore as Ψ=Ψ 0, transfer plate belt surface heat exchange uniformity is best.It is critical to cut
It cuts and compares Ψ0With the increase of Hs, the trend of first increases and then decreases is presented；As Hs >=10, critical cutting ratio Ψ0It is very small, Hs=10
When, critical cutting ratio Ψ0=0.03；When Hs=12, critical cutting ratio Ψ0=0.02；And in Ψ=0, Hs=10, it is located at x/s=0
The absolute difference for the Nu numbers pointed out with x/s=150 liang is 1.6, and difference percentage is less than 1%；In Ψ=0, Hs=12, be located at x/s=
0 and the absolute difference of Nu numbers pointed out of x/s=150 liang be 11.8, difference percentage is 7.5%；Under the conditions of Ψ=0, the distribution of Nu numbers
Uniformity meet the requirement of actual production, therefore as Hs >=10, take critical cutting ratio Ψ0=0。
As shown in Figure 10, critical cutting ratio Ψ0With the increase of Hs the trend of first increases and then decreases is presented, in Hs=4 in curve
Near, Ψ0Reach peak value.Ψ0Relationship with Hs is：Ψ0=0.001Hs4+0.0349 Hs3-0.4127 Hs2+1.8689 Hs-
1.9617。
As it can be seen that the instant freezer that utility model provides stitches nozzle arrangements with beveling item, it is suitable to be selected according to the variation of Hs values
Cutting can more effectively improve the uniformity of frozen product temperature-fall period than Ψ, improve traditional structure in food product refrigeration process
There are larger differences for frozen product rate of temperature fall at middle different location.
The above embodiments are only illustrative of the principle and efficacy of the utility model, new not for this practicality is limited
Type.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the utility model
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed essence of the utility model
All equivalent modifications completed under refreshing and technological thought or change, should be covered by the claim of the utility model.
Claims (7)
1. a kind of instant freezer stitches nozzle arrangements with beveling item, it is characterised in that：
The V-type diversion trench that is arranged including several moving direction uniform parallels along frozen product transfer plate band and under V-type diversion trench
The item of end connection stitches nozzle；
V-type diversion trench includes two pieces of stripe boards of relative tilt setting, and the length direction of the stripe board is located at horizontal direction, V
The cross section of type diversion trench is rectangle, and the longitudinal section of width direction is inverted trapezoidal, and the top of adjacent two V-types diversion trench is with tablet phase
Even；
It includes relatively parallel two be vertically arranged piece stripe board that item, which stitches nozzle, and the length direction of the stripe board is located at level side
To the upper end of two pieces of stripe boards of item seam nozzle is connect with the lower end of two pieces of stripe boards of V-type diversion trench respectively；
Item seam nozzle is that beveling item stitches nozzle, and the central points of two pieces of stripe board lower ends of nozzle is stitched from item to both ends symmetrical inclined
It cuts to be formed, it is nozzle ends by the ratio of height at cutting-height and nozzle longitudinal center, 1 >=Ψ >=0 to cut than Ψ.
2. instant freezer as described in claim 1 stitches nozzle arrangements with beveling item, it is characterised in that：
The length of the item seam nozzle is 1000-2000mm, width 3-10mm, is highly 20-40mm；Item stitches under nozzle and its
The spacing of the transfer plate band of side is 5-60mm, and the spacing is the most short vertical range between item seam nozzle and transfer plate band.
3. instant freezer as claimed in claim 2 stitches nozzle arrangements with beveling item, it is characterised in that：
The length of the item seam nozzle is 1200-1800mm, width 4-7mm, is highly 25-35mm；Item stitches under nozzle and its
The spacing of the transfer plate band of side is 5-30mm.
4. instant freezer as claimed in claim 3 stitches nozzle arrangements with beveling item, it is characterised in that：
The length of the item seam nozzle is 1500mm, width 5mm, is highly 30mm；Item stitches nozzle and transfer plate below
The spacing of band is 10mm.
5. instant freezer as described in claim 1 stitches nozzle arrangements with beveling item, it is characterised in that：
Work as Hs<When 10,1>Ψ0>0, wherein Hs are the width that item stitches nozzle and the spacing and item seam nozzle of transfer plate band below
The ratio of degree, Ψ0For critical cutting ratio, as Ψ=Ψ0When, the heat exchange uniformity of frozen region is best on instant freezer transfer plate band；
The spacing is the most short vertical range between item seam nozzle and transfer plate band.
6. instant freezer as claimed in claim 5 stitches nozzle arrangements with beveling item, it is characterised in that：
Work as Hs<When 10, Ψ0Relation formula with Hs is Ψ0=0.001Hs4+0.0349 Hs3-0.4127 Hs2+1.8689 Hs-
1.9617。
7. instant freezer as described in claim 1 stitches nozzle arrangements with beveling item, it is characterised in that：
As Hs >=10, Ψ0=0, wherein Hs are the width that item stitches nozzle and the spacing and item seam nozzle of transfer plate band below
Ratio, Ψ is the ratio that nozzle ends are located height by cutting-height and nozzle longitudinal center, the spacing be item stitch nozzle and
Most short vertical range between transfer plate band.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721640407.6U CN207702809U (en) | 2017-11-30 | 2017-11-30 | A kind of instant freezer beveling item seam nozzle arrangements |
| JP2018000102U JP3215531U (en) | 2017-11-30 | 2018-01-15 | Angled slit nozzle structure for quick freezing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721640407.6U CN207702809U (en) | 2017-11-30 | 2017-11-30 | A kind of instant freezer beveling item seam nozzle arrangements |
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| Publication Number | Publication Date |
|---|---|
| CN207702809U true CN207702809U (en) | 2018-08-07 |
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ID=61756442
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721640407.6U Active CN207702809U (en) | 2017-11-30 | 2017-11-30 | A kind of instant freezer beveling item seam nozzle arrangements |
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| Country | Link |
|---|---|
| JP (1) | JP3215531U (en) |
| CN (1) | CN207702809U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107763940A (en) * | 2017-11-30 | 2018-03-06 | 上海海洋大学 | A kind of new quick-frozen machine nozzle |
| CN107763939A (en) * | 2017-11-30 | 2018-03-06 | 上海海洋大学 | A kind of instant freezer beveling bar seam nozzle |
| WO2019104782A1 (en) * | 2017-11-30 | 2019-06-06 | 上海海洋大学 | Jet nozzle structure for impact-type fast-freezer |
-
2017
- 2017-11-30 CN CN201721640407.6U patent/CN207702809U/en active Active
-
2018
- 2018-01-15 JP JP2018000102U patent/JP3215531U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107763940A (en) * | 2017-11-30 | 2018-03-06 | 上海海洋大学 | A kind of new quick-frozen machine nozzle |
| CN107763939A (en) * | 2017-11-30 | 2018-03-06 | 上海海洋大学 | A kind of instant freezer beveling bar seam nozzle |
| WO2019104782A1 (en) * | 2017-11-30 | 2019-06-06 | 上海海洋大学 | Jet nozzle structure for impact-type fast-freezer |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3215531U (en) | 2018-03-29 |
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