CN208318147U - A kind of ellipse funnel-form jet nozzle - Google Patents

A kind of ellipse funnel-form jet nozzle Download PDF

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Publication number
CN208318147U
CN208318147U CN201721647541.9U CN201721647541U CN208318147U CN 208318147 U CN208318147 U CN 208318147U CN 201721647541 U CN201721647541 U CN 201721647541U CN 208318147 U CN208318147 U CN 208318147U
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CN
China
Prior art keywords
jet nozzle
diversion trench
nozzle
conic shape
elliptic conic
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Expired - Fee Related
Application number
CN201721647541.9U
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Chinese (zh)
Inventor
谢晶
柳雨嫣
王金锋
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Shanghai Maritime University
Shanghai Ocean University
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Shanghai Maritime University
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Priority to CN201721647541.9U priority Critical patent/CN208318147U/en
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Publication of CN208318147U publication Critical patent/CN208318147U/en
Expired - Fee Related legal-status Critical Current
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/80Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
    • Y02P60/85Food storage or conservation, e.g. cooling or drying

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  • Confectionery (AREA)

Abstract

A kind of ellipse funnel-form jet nozzle includes elliptic conic shape diversion trench, Elliptical Jet nozzle, transfer plate band, and oval funnel-form jet nozzle is characterized in that: elliptic conic shape diversion trench (1), Elliptical Jet nozzle (2) and transfer plate band (3) with a thickness of 1-5mm;The elliptic conic shape diversion trench (1) is the hollow oval taper type for including upper end opening and lower ending opening, and the upper end opening of diversion trench is connect with oval aperture, and the entrance of the lower ending opening connection nozzle of diversion trench, nozzle is hollow elliptical cylinder-shape.The utility model can effectively improve the heat transfer intensity of frozen region, and that improves instant freezer freezes efficiency, effectively improve conventional spout structure and cannot combine and higher freeze efficiency and the non-uniform defect of exchanging heat.

Description

A kind of ellipse funnel-form jet nozzle
Technical field
The utility model belongs to quick-frozen food machinery field, is related to a kind of oval funnel-form jet nozzle.
Background technique
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, which 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 circular opening plank frame, however this Kind structure has that frozen region frozen product freezing rate is low and temperature-fall period uniformity is lower.
Summary of the invention
The purpose of this utility model at least that provide one kind can be improved frozen region frozen product freezing rate it is low and cooling The impact type quick freezing machine fluidic nozzle configurations of process uniformity.
To realize above-mentioned mesh, it includes that elliptic conic shape is led that the utility model, which provides a kind of 1. oval funnel-form jet nozzles, Chute, Elliptical Jet nozzle, transfer plate band;Oval funnel-form nozzle arrangements are characterized in that: elliptic conic shape diversion trench (1), ellipse Jet nozzle (2) and transfer plate band (3) with a thickness of 1-5mm;
The elliptic conic shape diversion trench (1) is the hollow oval taper type for including upper end opening and lower ending opening, water conservancy diversion The upper end opening of slot is connect with oval aperture, and the entrance of the lower ending opening connection nozzle of diversion trench, nozzle is hollow cylindroid Shape;
Elliptic conic shape diversion trench (1) arrangement mode is linear array, and between two adjacent elliptic conic shape diversion trenches (1) Away from for 70-90mm;The long axis of elliptic conic shape diversion trench (1) upper end opening is 55-65mm, short axle 40-50mm, is highly 30- 50mm;The spacing of two adjacent elliptic conic shape diversion trenches (1) is the distance between two slotted eye centers;
The long axis of Elliptical Jet nozzle (2) outlet is 15-25mm, short axle 4-6mm, is highly 20-40mm;Transmission Strip (3) is located at immediately below Elliptical Jet nozzle (2), and the distance between transfer plate band (3) and Elliptical Jet nozzle (2) are 20-40mm。
In one embodiment, the thickness of elliptic conic shape diversion trench (1), Elliptical Jet nozzle (2) and transfer plate band (3) For 1-3mm.
In one embodiment, the thickness of elliptic conic shape diversion trench (1), Elliptical Jet nozzle (2) and transfer plate band (3) For 2mm.
In one embodiment, elongate strip conical flow guiding slot (1) arrangement mode is linear array, and two adjacent thin The spacing of strip conical flow guiding slot (1) is 75-85mm.
In one embodiment, the spacing of two adjacent elliptic conic shape diversion trenches (1) is 80mm.
In one embodiment, the long axis of elliptic conic shape diversion trench (1) upper end opening is 60mm, short axle 45mm, height For 40mm.
In one embodiment, the long axis of Elliptical Jet nozzle (2) outlet is 20mm, and short axle 5mm is highly 30mm。
In one embodiment, the distance between transfer plate band (3) and Elliptical Jet nozzle (2) are 30mm.
Above-mentioned technical proposal provided by the utility model can effectively improve the freezing rate of frozen product and improve frozen product drop The uniformity of warm process, improve traditional structure in food product refrigeration process at different location existing for frozen product rate of temperature fall compared with Big otherness improves frozen product quality.
Detailed description of the invention
Fig. 1 is a kind of oval funnel-form jet nozzle schematic three dimensional views of the utility model.
Fig. 2 is a kind of oval funnel-form jet nozzle top view of the utility model.
Fig. 3 is a kind of oval funnel-form nozzle knot main view of the utility model.
In Fig. 1,1, elliptic conic shape diversion trench;2, Elliptical Jet nozzle;3, transfer plate band.
Specific embodiment
To be easy to understand operating process of the utility model and creation characteristic, below with reference to specific embodiment party The utility model is further described in formula.
Oval funnel-form jet nozzle includes elliptic conic shape diversion trench, Elliptical Jet nozzle, transfer plate band;Oval funnel-form Nozzle arrangements are characterized in that: elliptic conic shape diversion trench (1), Elliptical Jet nozzle (2) and transfer plate band (3) with a thickness of 1-5mm;
The elliptic conic shape diversion trench (1) is the hollow oval taper type for including upper end opening and lower ending opening, water conservancy diversion The upper end opening of slot is connect with oval aperture, and the entrance of the lower ending opening connection nozzle of diversion trench, nozzle is hollow cylindroid Shape;
Elliptic conic shape diversion trench (1) arrangement mode is linear array, and between two adjacent elliptic conic shape diversion trenches (1) Away from for 70-90mm;The long axis of elliptic conic shape diversion trench (1) upper end opening is 55-65mm, short axle 40-50mm, is highly 30- 50mm;The spacing of two adjacent elliptic conic shape diversion trenches (1) is the distance between two slotted eye centers;
The long axis of Elliptical Jet nozzle (2) outlet is 15-25mm, short axle 4-6mm, is highly 20-40mm;Transmission Strip (3) is located at immediately below Elliptical Jet nozzle (2), and the distance between transfer plate band (3) and Elliptical Jet nozzle (2) are 20-40mm。
The Cryogenic air for carrying out flash-pot is boosted after the blower sucking of instant freezer to flow out, by the laggard incident flow of plenum chamber Nozzle is exchanging heat from the outlet of nozzle arrangements outflow into evaporator after nozzle sprays, is then being inhaled again by blower Enter to enter next circulation.
It compares with traditional circular opening plank frame, using above-mentioned fluidic nozzle configurations provided by the utility model, The heat transfer intensity that transfer plate belt surface can be greatly improved improves the freezing rate of frozen product, simultaneously because the speed of jet expansion It improves a lot, improves the flowing in frozen region, so as to improve the uniformity of frozen product temperature-fall period, therefore improve Frozen product quality.
By taking instant freezer plenum chamber is having a size of 600*600*600mm as an example, plate size 600*600*2mm leaks ellipse Bucket-shaped nozzle has carried out numerical simulation, has selected the AND DEWATERING FOR ORIFICE STRUCTURE of elliptical opening as a comparison as a comparison.The fluid of simulation is Air has carried out following hypothesis: 1. air is that 2. in normal course of operation, internal flow field is considered as model incompressible fluid 3. plenum chamber wall surface is considered as insulation to stable state.This model uses k-ε turbulence model, due to there is the variation of temperature in impact process, Therefore open energy equation.Pressure entrance boundary condition is Pin=250Pa, pressure export boundary condition Pout=0Pa.For freezing zone Domain, inlet temperature are set as 230K, outlet temperature 235K.Conveyer belt is as transfer plate tape handling, thermal conductivity 16.3W/ (m* DEG C).
It is preferred by numerical simulation, elliptic conic shape diversion trench 1, Elliptical Jet nozzle 2 and transfer plate band 3 with a thickness of 2mm; 1 arrangement mode of elliptic conic shape diversion trench is linear array, and the spacing of two adjacent elliptic conic shape diversion trenches 1 is 80mm;It is ellipse The long axis of conical 1 upper end opening of diversion trench is 60mm, short axle 45mm, is highly 40mm;2 outlet of Elliptical Jet nozzle Long axis is 20mm, short axle 5mm, is highly 30mm;Transfer plate band 3 is located at immediately below Elliptical Jet nozzle 2, and transfer plate band 3 The distance between elliptical nozzles 2 are 30mm.
By carrying out numerical simulation to instant freezer frozen region, analog result shows: in the identical feelings of exit area of nozzle Under condition, transfer plate belt surface average nusselt number is 158.13 under oval funnel-form nozzle arrangements, ellipse on traditional plate with opening Average nusselt number is 145.31 under circular jet nozzle, it can be seen that average nusselt number under this novel oval funnel-form nozzle arrangements About improve 8.82%.
The above embodiments are only illustrative of the principle and efficacy of the utility model, and not for limitation, this is practical new 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 or change completed under mind and technical idea, should be covered by the claim of the utility model.

Claims (7)

1. a kind of ellipse funnel-form jet nozzle, including elliptic conic shape diversion trench, Elliptical Jet nozzle, transfer plate band;Ellipse leakage Bucket-shaped nozzle arrangements are characterized in that: elliptic conic shape diversion trench (1), Elliptical Jet nozzle (2) and transfer plate band (3) with a thickness of 1- 5mm;
The elliptic conic shape diversion trench (1) is the hollow oval taper type for including upper end opening and lower ending opening, diversion trench Upper end opening is connect with oval aperture, and the entrance of the lower ending opening connection nozzle of diversion trench, nozzle is hollow elliptical cylinder-shape;
Elliptic conic shape diversion trench (1) arrangement mode is linear array, and the spacing of two adjacent elliptic conic shape diversion trenches (1) is 70-90mm;The long axis of elliptic conic shape diversion trench (1) upper end opening is 55-65mm, short axle 40-50mm, is highly 30-50mm; The spacing of two adjacent elliptic conic shape diversion trenches (1) is the distance between two slotted eye centers;
The long axis of Elliptical Jet nozzle (2) outlet is 15-25mm, short axle 4-6mm, is highly 20-40mm;Transfer plate band (3) it is located at immediately below Elliptical Jet nozzle (2), and the distance between transfer plate band (3) and Elliptical Jet nozzle (2) are 20- 40mm。
2. a kind of oval funnel-form jet nozzle as described in claim 1, it is characterised in that: elliptic conic shape diversion trench (1), ellipse Circular jet nozzle (2) and transfer plate band (3) with a thickness of 1-3mm.
3. a kind of oval funnel-form jet nozzle as described in claim 1, it is characterised in that: elliptic conic shape diversion trench (1), ellipse Circular jet nozzle (2) and transfer plate band (3) with a thickness of 2mm.
4. a kind of oval funnel-form jet nozzle as described in claim 1, it is characterised in that: two adjacent elliptic conic shapes are led The spacing of chute (1) is 80mm.
5. a kind of oval funnel-form jet nozzle as described in claim 1, it is characterised in that: on elliptic conic shape diversion trench (1) The long axis of end opening is 60mm, short axle 45mm, is highly 40mm.
6. a kind of oval funnel-form jet nozzle as described in claim 1, it is characterised in that: Elliptical Jet nozzle (2) outlet The long axis in section is 20mm, short axle 5mm, is highly 30mm.
7. a kind of oval funnel-form jet nozzle as described in claim 1, it is characterised in that: transfer plate band (3) is penetrated with ellipse The distance between flow nozzle (2) is 30mm.
CN201721647541.9U 2017-12-01 2017-12-01 A kind of ellipse funnel-form jet nozzle Expired - Fee Related CN208318147U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721647541.9U CN208318147U (en) 2017-12-01 2017-12-01 A kind of ellipse funnel-form jet nozzle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721647541.9U CN208318147U (en) 2017-12-01 2017-12-01 A kind of ellipse funnel-form jet nozzle

Publications (1)

Publication Number Publication Date
CN208318147U true CN208318147U (en) 2019-01-04

Family

ID=64788104

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721647541.9U Expired - Fee Related CN208318147U (en) 2017-12-01 2017-12-01 A kind of ellipse funnel-form jet nozzle

Country Status (1)

Country Link
CN (1) CN208318147U (en)

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CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20190104

Termination date: 20191201