CN204070161U - A kind of circular circular hatching channal improving artificial propagation of fish hatchability of fertile eggs - Google Patents

A kind of circular circular hatching channal improving artificial propagation of fish hatchability of fertile eggs Download PDF

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Publication number
CN204070161U
CN204070161U CN201420578441.5U CN201420578441U CN204070161U CN 204070161 U CN204070161 U CN 204070161U CN 201420578441 U CN201420578441 U CN 201420578441U CN 204070161 U CN204070161 U CN 204070161U
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CN
China
Prior art keywords
round platform
circular
fish
height
hatchability
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Expired - Fee Related
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CN201420578441.5U
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Chinese (zh)
Inventor
皮杰
李德亮
余建波
谢永宏
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Hunan Agricultural University
Institute of Subtropical Agriculture of CAS
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Hunan Agricultural University
Institute of Subtropical Agriculture of CAS
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Priority to CN201420578441.5U priority Critical patent/CN204070161U/en
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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
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81Aquaculture, e.g. of fish

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  • Farming Of Fish And Shellfish (AREA)

Abstract

A kind of circular circular hatching channal improving artificial propagation of fish hatchability of fertile eggs, comprise the cylinder body of installing fertilized egg, the bottom centre of this cylinder body is provided with by first, the center round platform that two round platforms are formed, the radius of this first round platform is less than the radius of this second round platform, and the height of this body be greater than this first, the height of two round platforms and, circuit is formed between this inner body wall and center round platform, the periphery of this first round platform installs the filtration screen window of reverse frustoconic, the periphery of this second round platform installs annular water pipeline, this annular spray pipe road is evenly equipped with 30-36 water jet, each water jet is towards inner body wall setting and with the direction being parallel to body bottom portion towards inner body wall shower, make to be formed in this circuit, the current of lower rolling, fertilized egg is made to concentrate on circuit water body at the middle and upper levels, the inlet channel of one band water intaking valve is connected to this annular spray pipe, the discharge outlet that the middle part rational height of this center round platform is adjustable, this discharge outlet communicated drainage pipeline.

Description

A kind of circular circular hatching channal improving artificial propagation of fish hatchability of fertile eggs
Technical field
The utility model relates to a kind of artificial propagation of fish incubating oosperm circuit, particularly a kind of circular circular hatching channal improving artificial propagation of fish hatchability of fertile eggs.
Background technology
The breakthrough of artificial propagation of fish technology, substantially increases the efficiency of fish production, for aquatic products cultivation and treasure and provide reliable technical support with the mass rearing of endangered species.The hatching of fish oosperm is one of key factor of artificial propagation of fish success or failure, and the height of incubation rate directly affects fish production and treasures the mass rearing with endangered species.In the growth course of fertilized egg, the height of dissolved oxygen is one of key factor determining hatching success or failure.At present, in artificial propagation of fish process, the facility that fertilized egg artificial incubation uses mainly contains circular hatching channal, incubation tank and hatching pail etc.Wherein, incubation tank and circular hatching channal use the most extensive, and hatching pail, because of small volume, uses relatively less in large-scale production process.Incubation tank is generally rectangle tank, and the current formed are upper and lower circulation, because its corner easily forms dead angle, so fertilized egg easily causes anoxic in this accumulation, thus affects the normal development of fertilized egg.Circular hatching channal has oval and circular two types.Oval circular hatching channal can not form circulation, easily causes fertilized egg to sink to the bottom and piles up and anoxic, affect the hatching of fertilized egg, and the circular hatching channal of circle uses in actual production the most extensive.Circulation in circular circular hatching channal is Duckbill type the shower nozzle clockwise or counterclockwise circulation that formed of horizontal-spray clockwise or counterclockwise by bottom, though its circuit does not have dead angle, heavy property fertilized egg can not because sinking to the bottom accumulation anoxic, but the motion of four kinds of power (horizontal thrust, self gravitation, buoyancy of water and frictional resistance) that fertilized egg is subject in actual motion process is made a concerted effort actual in obliquely.Therefore, fertilized egg is mainly gathered in lower floor in water in cyclic motion process, can cause fertilized egg that dissolved oxygen can be utilized to reduce to a certain extent, affect growth and the incubation rate of embryo, also limits the bearing capacity of fertilized egg in circuit to a certain extent simultaneously.
Utility model content
The utility model easily causes incubating oosperm to sink to the bottom the technical problem of anoxic for existing fish hatching circuit in artificial propagation of fish process, provides one can ensure needed for incubating oosperm dissolved oxygen, improves the circular hatching channal of artificial propagation of fish hatchability of fertile eggs.
For solving the problems of the technologies described above, the technical scheme that the utility model is taked is: a kind of circular circular hatching channal improving artificial propagation of fish hatchability of fertile eggs, comprise the cylinder body of installing fertilized egg, the bottom centre of this cylinder body is provided with by first, the center round platform that two round platforms are formed, the radius of this first round platform is less than the radius of this second round platform, and the height of this body be greater than this first, the height of two round platforms and, make to form circuit between this inner body wall and center round platform, the periphery of this first round platform installs the filtration screen window of reverse frustoconic, the periphery of this second round platform installs annular water pipeline, this annular spray pipe road is evenly equipped with 30-36 water jet, each water jet is towards inner body wall setting and with the direction being parallel to body bottom portion towards inner body wall shower, make to be formed in this circuit, the current of lower rolling, fertilized egg is made to concentrate on circuit water body at the middle and upper levels, the inlet channel of one band water intaking valve is connected to this annular spray pipe, the discharge outlet that the middle part rational height of this two-stage boss is adjustable, and this discharge outlet is communicated with the drainage pipeline of band draining valve.
Being improved to further of such scheme, the formation slope, bottom of this cylinder body.This slope is preferably the slope that inclination angle is 5o.The inclination angle on this slope increases and decreases as required.
Being improved to further of such scheme, the height of this body is 120cm, and the height of this second round platform is 20cm.
Being improved to further of such scheme, the height of this body, first and second round platform increases and decreases as required.
Being improved to further of such scheme, the height of this body is 120cm, and the height of this first round platform is 10cm, and the height of this second round platform is 20cm.
Being improved to further of such scheme, this annular spray pipe road is evenly equipped with 32 water jets, and between adjacent water jet, angle is 11.25 o.
Being improved to further of such scheme, the width of this circuit is 80cm.
The beneficial effects of the utility model are: the utility model is by arranging annular spray pipe road at body bottom portion, and annular spray pipe road is evenly equipped with towards the water jet of inner body wall, this water jet is sprayed water to inner body wall with the direction be parallel to bottom circuit, make the current forming upper and lower rolling in circuit, can the fertilized egg of circuit bottom be taken to top layer, make fertilized egg mainly concentrate on water body at the middle and upper levels, ensure needed for development of fertilized ova dissolved oxygen, thus improve incubation rate.The utility model adopts reverse frustoconic to filter screen window, increases drainage area, the discharge flowed out is increased, can reduce because egg membrane during demoulding invests the phenomenon of filtering and screen window occurring " race seedling " in the unit interval.
The utility model is used for the hatchery facility of artificial propagation of fish incubating oosperm.
Accompanying drawing explanation
Fig. 1 is a kind of cross-sectional view improving circular circular hatching channal one embodiment of artificial propagation of fish hatchability of fertile eggs of the utility model.
Fig. 2 is that Fig. 1 does not install the aerial view filtering screen window.
Fig. 3 is the profile that the utility model filters screen window.
Fig. 4 is the aerial view that the utility model filters screen window.
Embodiment
Please refer to Fig. 1-Fig. 4, a kind of circular circular hatching channal one embodiment improving artificial propagation of fish hatchability of fertile eggs of the utility model, it comprises: 1, adjustable for height discharge outlet; 2, inlet channel; 3, water intaking valve; 4, annular spray pipe; 5, body; 6, circuit; 7, drainage pipeline; 8, draining valve; 9, screen window is filtered; 10, the first round platform; 11, the second round platform; 12, water jet; 13, inclination angle; R 1: the second round platform radius; R 2: circuit bottom width; h 1: the first frustum cone height; h 2: the second frustum cone height; h 3: body height.This adjustable for height discharge outlet 1 according to the quantity of fertilized egg, can control the height of discharge outlet, thus controls the volume in circuit 6, avoid the waste of water resource, its highly general height lower than filtering screen window 9, diameter is 10 ~ 15cm, increase and decrease that as required can be suitable.The drainage pipeline 7 of this discharge outlet 1 connecting band draining valve 8.The length of inlet channel 2 is 8 ~ 10cm, can suitably increase and decrease as required.Water intaking valve 3 is for controlling the flow of water, and fertilized egg is to fry " some waist " (" some waist " the i.e. fish glue formation of fry, and the gassiness phenomenon in the inside." some waist " is front, and fry vertically moves about up and down in water, and fry is easily sunken to bottom circuit; After " some waist ", fry energy level is moved about, and controls sink-float by regulating gas in fish glue.) front, flow should tune up, and " some waist " afterwards flow should be turned down.This annular spray pipe 4 is installed on the periphery of the second round platform 11, and this annular spray pipe 4 connects inlet channel 2.This annular spray pipe 4 adopts diameter to be the sparge pipe of 3cm in the present embodiment, every 11.25 oa water jet 12(totally 32 is set), can to ensure in circuit that non-water flow sprays dead angle, the increase and decrease number (with reference to number 30 ~ 36) that the number of this water jet generally can be suitable according to the size of water jet caliber.This body 5 is cylindrical shape, and this body bottom portion forms slope, and the inclination angle 13 on this slope is 5o, and body bottom portion employing slope can ensure the current Rolling flow in circuit, and this inclination angle as required angle can suitably increase and decrease.This body bottom portion center arranges the center round platform formed by first and second round platform 10,11.In the present embodiment, the height h of this body 3for 120cm, can suitably increase and decrease as required.This circuit 6 is clamped by the inwall of body 5 and the outer wall of center round platform and is formed, the width R of this circuit 6 2for 80cm, can suitably increase and decrease as required.The filtration screen window 9 of reverse frustoconic, back-off in the first round platform 10, and filters the radius of lower radius slightly larger than the first round platform 10 of screen window 9.This first round platform 10, for fixing filtration screen window 9, radius is slightly less than the radius R of the second round platform 11 1, the first frustum cone height h 1for 10cm, can suitably increase and decrease as required.The radius R of the second round platform 11 1for 100cm, can suitably increase and decrease as required, its height h 2for 20cm, also can suitably increase and decrease as required.
When the utility model uses, fertilized egg is put in body 1, open water intaking valve 3, make current enter annular spray pipe 4 through inlet channel 2, through multiple water jets of annular spray pipe 4 to be parallel to the direction of body bottom portion towards the even shower of inner body wall, make the current forming upper and lower rolling in circuit, can the fertilized egg of circuit bottom be taken to top layer, make fertilized egg mainly concentrate on water body at the middle and upper levels, ensure needed for development of fertilized ova dissolved oxygen, thus improve incubation rate.

Claims (6)

1. one kind is improved the circular circular hatching channal of artificial propagation of fish hatchability of fertile eggs, comprise the cylinder body of installing fertilized egg, the bottom centre of this cylinder body is provided with the center round platform formed by first and second round platform, the radius of this first round platform is less than the radius of this second round platform, and the height of this body be greater than this first and second round platform height and, form circuit between this inner body wall and center round platform, it is characterized in that
The periphery of this first round platform installs the filtration screen window of reverse frustoconic, the periphery of this second round platform installs annular water pipeline, this annular spray pipe road is evenly equipped with 30-36 water jet, each water jet is towards inner body wall setting and with the direction being parallel to body bottom portion towards inner body wall shower, make the current forming upper and lower rolling in this circuit, make fertilized egg concentrate on circuit water body at the middle and upper levels; The inlet channel of one band water intaking valve is connected to this annular spray pipe, the discharge outlet that the middle part rational height of this center round platform is adjustable, and this discharge outlet is communicated with the drainage pipeline of band draining valve.
2. a kind of circular circular hatching channal improving artificial propagation of fish hatchability of fertile eggs according to claim 1, is characterized in that, the formation slope, bottom of this cylinder body.
3. a kind of circular circular hatching channal improving artificial propagation of fish hatchability of fertile eggs according to claim 2, is characterized in that, the slope of to be inclination angle be on this slope 5o.
4. a kind of circular circular hatching channal improving artificial propagation of fish hatchability of fertile eggs according to claim 1, is characterized in that, the height of this body is 120cm, and the height of this first round platform is 10cm, and the height of this second round platform is 20cm.
5. a kind of circular circular hatching channal improving artificial propagation of fish hatchability of fertile eggs according to claim 1, is characterized in that, this annular spray pipe road is evenly equipped with 32 water jets, between adjacent water jet, angle is 11.25 o.
6. a kind of circular circular hatching channal improving artificial propagation of fish hatchability of fertile eggs according to claim 1, is characterized in that, the width of this circuit is 80cm.
CN201420578441.5U 2014-10-09 2014-10-09 A kind of circular circular hatching channal improving artificial propagation of fish hatchability of fertile eggs Expired - Fee Related CN204070161U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105052789A (en) * 2015-07-31 2015-11-18 常州市金坛区直溪镇农业综合服务站 Hatching device capable of improving fry hatching survival rate
CN111869607A (en) * 2020-07-23 2020-11-03 中国水产科学研究院黑龙江水产研究所 Circulating water hatching method for carp oosperm

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105052789A (en) * 2015-07-31 2015-11-18 常州市金坛区直溪镇农业综合服务站 Hatching device capable of improving fry hatching survival rate
CN111869607A (en) * 2020-07-23 2020-11-03 中国水产科学研究院黑龙江水产研究所 Circulating water hatching method for carp oosperm

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150107

Termination date: 20151009

EXPY Termination of patent right or utility model