CN211020558U - Inflatable shellfish larva water changing net cage device - Google Patents
Inflatable shellfish larva water changing net cage device Download PDFInfo
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- CN211020558U CN211020558U CN201921765384.0U CN201921765384U CN211020558U CN 211020558 U CN211020558 U CN 211020558U CN 201921765384 U CN201921765384 U CN 201921765384U CN 211020558 U CN211020558 U CN 211020558U
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Abstract
The utility model relates to the aquaculture field, in particular to an inflatable shellfish larva water changing net cage device used in the shellfish larva cultivation process, which comprises a net cage frame, wherein the net cage frame comprises an inner frame and an outer frame, the inner frame is arranged in the outer frame, the bottom of the inner frame is closed, a filter screen sleeve is arranged at the periphery, the center of the inner frame runs through the inner frame and is provided with a drainage hard pipe, a drain hole is arranged on the drainage hard pipe, the net cage device also comprises a water changing hose, one end of the water changing hose is placed into the drainage hard pipe, the other end extends to the drainage position, the net cage device also comprises an inflating device, the inflating device is fixed on the inner frame and the outer frame, the inflating pipe is arranged at the bottom of the outer frame and the inner frame, the air inlet pipe is connected with the inflating device through a tee joint, an air inlet valve is arranged at the air inlet of the air inlet, thereby reducing the rate of adhesion of larvae when changing water.
Description
Technical Field
The utility model relates to the aquaculture field, concretely relates to inflatable trades water box with a net device and application method for shellfish larva breeding process.
Background
China has a huge seawater shellfish culture industry, shellfish culture is an important member of the seawater culture industry, and the yield of the shellfish culture accounts for 80 percent of the total seawater culture yield of China. Common shellfish such as clams, oysters, scallops, gastropod red snails and the like have delicious taste and rich nutrition and have important economic value. With the continuous development of artificial breeding technology, the efficient industrial seedling raising mode receives more attention.
In the process of raising the shellfish seedlings, daily water change in the early planktonic larva stage is an important task. At present, the traditional mode of breeding a large variety of shellfish offspring seeds in China before 20-30 years is basically used, most of the traditional modes adopt artificial shaking water changing net cages to change water for larva cultivation, as shown in figure 1, one end of a water changing hose is placed into a drainage hard pipe, the other end of the water changing hose is placed at a lower horizontal plane (lower than the lowest water changing horizontal plane of a cultivation pool), and water is sucked out by utilizing the siphon principle. The disadvantages of this method are: utilize siphon to adsorb the shellfish larva on the bolting-silk easily when absorbing water to arouse the death of larva, consequently need the workman constantly to wave the box with a net of changing water, prevent that the larva from adsorbing on the bolting-silk, this cost of labor with regard to greatly increased the growing seedlings, and the workman waves the different clearance of changing the box with a net of water, still has serious larva and adsorbs the phenomenon at the bolting-silk, thereby has increased the mortality of larva.
In view of the problems existing in the prior art, the utility model provides an inflatable water changing net cage device used in the shellfish larva cultivation process and a using method thereof, which aims to overcome the defects.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model aims at providing a practice thrift artifical, improve the inflatable of larva survival rate and trade water box with a net device that is used for in the shellfish larva process of cultivating, realize that the larva cultivates the in-process automation and trade water, solve current shellfish and trade the problem that water box with a net larva death rate is high, the cost of labor is high.
In order to achieve the above object, the utility model adopts the following technical scheme:
The utility model provides an inflatable trades water box with a net device for shellfish larva process of breeding, its includes box with a net frame, and the box with a net frame includes inside casing and frame, and the inside casing setting is in the frame, and the inside casing bottom is sealed, and the periphery sets up the filter screen cover, and inside casing central authorities run through the inside casing and set up the drainage hard tube, set up the wash port on the drainage hard tube, and it still includes trades the water hose, trades the one end of water hose and puts into the drainage hard tube, and the other end stretches to drainage department, and it still includes aerating device, aerating device fixes on inside casing and frame, and the aerating tube sets up in the bottom of frame and inside casing, and the intake pipe passes through the tee bend and.
Furthermore, the air charging device is a nano air charging pipe, the length of the nano air charging pipe is respectively the same as the perimeter of the inner frame and the outer frame, and the inner frame is crossed.
Furthermore, the diameter of the inner frame is 10cm smaller than that of the outer frame, and the bottom end of the inner frame is 5-8 cm higher than that of the outer frame.
Furthermore, the floating ball type net cage further comprises a floating ball, wherein the floating ball is fixed near the middle of the net cage frame and is connected with the frame through a thin line.
Further, the filter screen is a bolting silk, and the mesh number of the bolting silk is selected according to the type and the size of the shellfish larvae.
Furthermore, the distance between the fixing ring of the drainage hard pipe at the lower part of the inner frame and the bottom of the inner frame is 15-20 cm.
A use method of the inflatable water changing net cage device used in the shellfish larva cultivating process is characterized in that: which comprises the following steps:
A. Selecting proper mesh number of the bolting silk according to the size of the shellfish larva, and installing the bolting silk on the inner frame;
B. The water changing net cage is placed in water, then the air charging pipe is connected with the air inlet of the water changing net cage, the air inlet valve is opened, the nano air charging pipe at the bottom end of the device starts to be charged with air, then one end of the water changing hose is placed in the water drainage hardening pipe, and automatic water changing is carried out by utilizing the siphon principle.
The shellfish includes bivalve shellfish such as hard shell clam, Mactra chinensis, Meretrix meretrix Linnaeus, Ruditapes philippinarum, Concha Ostreae, bay scallop, Chlamys farreri, Patinopecten yessoensis, etc., and gastropods such as Rapana venosa.
On the basis of the common knowledge in the field, the above-mentioned preferred conditions can be combined at will to obtain the embodiment of the invention.
The utility model has the advantages of as follows:
(1) The utility model provides an inflatable water changing net cage device used in the shellfish larva cultivation process and a use method thereof, comprising a net cage frame, a filter screen, a water changing hose and an inflating device. The net cage frame is cylindrical, is made of stainless steel, is divided into an inner frame and an outer frame, has a large diameter, and is mainly used for supporting the whole device; the diameter of the inner frame is small, the bottom end of the inner frame is 5-8cm higher than that of the outer frame, a row of water-hardening pipe fixing rings are respectively welded at the central positions of the upper portion and the lower portion of the inner frame, the lower portion fixing rings are 15-20cm away from the bottom of the inner frame, the water-hardening pipes are located in the fixing rings, one end of the water-changing hose is placed into the water-hardening pipes, and water changing operation is carried out by utilizing a siphon principle. The filter screen is sleeved outside the inner frame, and the upper end of the filter screen is fixed at the upper end of the net cage frame through a rope body on the outer wall of the filter screen. The air charging devices are nano air charging tubes which are respectively fixed on the inner frame and the outer frame, the length of each nano air charging tube is respectively the same as the perimeter of the inner frame and the outer frame, and the inner frames are crossed into a cross shape; the air inlet pipe is connected with the nanometer inflation pipe through a tee joint, the air inlet pipe is fixed on the net cage frame, and an air inlet valve is arranged at the air inlet of the air inlet pipe. The use method of the device can save the labor cost by more than 80 percent, and the adhesion rate of the larvae on the filter screen is reduced by 70 to 90 percent when water is changed.
(2) The utility model discloses a breeding device still includes the floater, the floater is fixed in near box with a net frame middle part, through fine rule and frame attach, sets up the purpose of floater and floats in the surface of water in order to make the box with a net of changing water, prevents along with the reduction of water level, and more bolting-silk expose in the air, causes the larva attached to on the bolting-silk to die.
(3) The utility model discloses breeding device's aerating device is the nanometer gas tube, not only effectively improves the dissolved oxygen in the water, has more increaseed the inside and outside negative pressure of filter screen, effectively prevents the larva adhesion on the filter screen.
(4) The utility model discloses breeding device can realize automatic water changing, need not the workman and constantly waves the box with a net, effectively practices thrift the cost of labor.
(5) The utility model discloses the material that adopts is the stainless steel, and the material is nontoxic harmless, is difficult for rustting, and device easy operation, durable effectively reduce the cost of growing seedlings.
The use principle is as follows: the nanometer gas-filled tube through interior outer frame produces the bubble inside and outside the bolting silk, produces the negative pressure and stirs the larva of adhesion on the bolting silk to reduce the adhesion rate of larva when changing water.
Drawings
FIG. 1 illustrates a conventional water-changing net cage;
Fig. 2 shows the inflatable water changing net cage device for shellfish larvae of the utility model;
FIG. 3 is a schematic view showing the use of the inflatable water-changing net cage for shellfish larvae of the present invention;
The air inlet valve comprises a 1-air inlet valve, a 2-air inlet pipe, a 3-first tee joint, a 4-water discharge hard pipe, a 5-second tee joint, a 6-water discharge hard pipe fixing ring, a 7-bolting silk, a 8-floating ball, a 9-inflation pipe, a 10-inner frame, an 11-outer frame, a 12-bolting silk inner bubble and a 13-bolting silk outer bubble.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Example 1:
As shown in fig. 2, the inflatable water changing net cage device for the shellfish larva cultivation process comprises a net cage frame, wherein the net cage frame comprises an inner frame 10 and an outer frame 11, the inner frame 10 is arranged in the outer frame 11, the bottom of the inner frame 10 is closed, a filter net sleeve is arranged on the periphery of the inner frame, a water discharging hard pipe 4 is arranged in the inner frame 11 in a penetrating mode and penetrates through the inner frame 11, a water discharging hole is formed in the water discharging hard pipe 4, the inflatable water changing net cage device further comprises a water changing hose, one end of the water changing hose is placed into the water discharging hard pipe 4, the inflatable water changing net cage device is fixed on the inner frame 10 and the outer frame 11, an inflating pipe 9 is arranged at the bottoms of the outer frame 10 and the inner frame 11, an air inlet pipe 2 is. The air charging device is a nanometer air charging pipe, the length of the nanometer air charging pipe is respectively the same as the circumference of the inner frame 10 and the outer frame 11, and the nanometer air charging pipe is crossed with the inner frame 10. The diameter of the inner frame 10 is 10cm smaller than that of the outer frame, and the bottom end of the inner frame is 5-8 cm higher than that of the outer frame 11. The floating ball device further comprises a floating ball 8, wherein the floating ball 8 is fixed near the middle of the net cage frame and is connected with the frame through a thin line. The filter screen is bolting silk 7, the mesh number of bolting silk 7 is selected according to the type and size of the shellfish larva, and the bolting silk is arranged outside the inner frame. The distance between the lower part of the inner frame and the fixed ring of the hard drainage pipe is 15-20 cm. The water changing net cage is placed in water, then the air charging pipe 9 is connected with an air inlet of the water changing net cage, the air inlet valve 1 is opened, the nano air charging pipe at the bottom end of the device starts to charge air, air bubbles 12 in the bolting silk inside and outside the bolting silk 7 and air bubbles 13 outside the bolting silk are shown in figure 3, then one end of the water changing hose is placed in the water discharging hard pipe 4, and automatic water changing is carried out by utilizing the siphon principle. The bottom end of the inner frame of the embodiment is 5 cm higher than the bottom end of the outer frame, and the fixing ring 4 at the lower part of the inner frame is 15 cm away from the bottom of the inner frame. The drain pipe 6 is fixed on the frame through the drain pipe fixing ring. The inflation tube 9 is fixed on the inner frame through a second tee joint 5.
Example 2
The bottom end of the inner frame of the embodiment is 8 cm higher than the bottom end of the outer frame, and the distance between the fixing ring of the drainage hard pipe at the lower part of the inner frame and the bottom of the inner frame is 20 cm. The shellfish selected in the embodiment is hard shell clam larvae, the average shell length is 210 mu m, the experimental conditions are that the water temperature is 23-27 ℃, the salinity is 30-33, the pH value is 7.6-7.8, and the unicellular algae bait is chrysophyceae. The experimental group places the inflatable shellfish larva water changing net cage in a culture pond, connects the air charging pipe with the air inlet of the water changing net cage, opens the air inlet valve to start charging the nano air charging pipe at the bottom end of the device, then places the water changing hose in the water drainage hardening pipe, and automatically changes water by using the siphon principle. The control group is a traditional water changing net cage.
The cultivation apparatus used in this embodiment is the same as that of embodiment 1, and the specific parameters are as follows: the mesh number of the bolting silk is 300 meshes.
The water change effect of the hard shell clam larvae is shown in table 1.
TABLE 1 Water exchange Effect of hard shell clam larvae
Can see through the water effect of changing in table 1, the adhesion rate of larva at the filter screen reduces more than 70% -90% when changing water, utilizes this device can practice thrift the cost of labor more than 80%, to sum up this water installation of changing has the beneficial effect that reduces larva adhesion rate, practices thrift the cost of labor.
Example 3:
The same parts as those in embodiment 2 will not be described again, except that: the bivalve shellfish larvae selected in the embodiment are mactra chinensis, and the average shell length is 190 μm; in the embodiment, the bottom end of the inner frame is 7 cm higher than that of the outer frame, the distance between the fixing ring of the drainage hard pipe at the lower part of the inner frame and the bottom of the inner frame is 18 cm, and the number of the bolting silk is 260 meshes.
The water changing effect of the mactra chinensis larvae is shown in table 1.
TABLE 2 Water exchange Effect of Mactra chinensis larvae
Can see through the water effect of changing in table 2, the adhesion rate of larva at the filter screen reduces more than 70% -90% when changing water, utilizes this device can practice thrift the cost of labor more than 80%, to sum up this water installation of changing has the beneficial effect that reduces larva adhesion rate, practices thrift the cost of labor. It should be emphasized that the embodiments described herein are illustrative and not restrictive, and thus the present invention includes but is not limited to the embodiments described in the detailed description, as well as other embodiments derived from the technical solutions of the present invention by those skilled in the art, which also belong to the scope of the present invention.
Claims (6)
1. The utility model provides an inflatable shellfish larva trades water box with a net device which characterized in that, it includes box with a net frame, and the box with a net frame includes inside casing and frame, and the inside casing sets up in the frame, and the inside casing bottom is sealed, and the periphery sets up the filter screen cover, and inside casing central authorities run through the inside casing and set up the drainage hard tube, set up the wash port on the drainage hard tube, and drainage hole department sets up the filter screen, and it still includes trades the water hose, trades the one end of water hose and puts into the drainage hard tube, and the other end stretches to drainage department, and it still includes aerating device, aerating device fixes on inside casing and frame, and aerating device includes gas tube and intake pipe, and the gas tube setting is in the bottom of frame and inside casing, and.
2. The inflatable shellfish larva water exchange net cage device according to claim 1, wherein the inflation device is a nano inflation tube, the length of the nano inflation tube is the same as the perimeter of the inner frame and the outer frame respectively, and the inner frame is crossed.
3. The inflatable shellfish larva water exchange net cage device according to claim 1, wherein the diameter of the inner frame is 10cm smaller than that of the outer frame, and the bottom end thereof is 5-8 cm higher than that of the outer frame.
4. The inflatable shellfish larva water exchange net cage device according to claim 1, further comprising a floating ball fixed near the middle of the net cage frame and connected with the frame through a thin wire.
5. The inflatable shellfish larva water exchange net cage device according to claim 1, wherein the filter screen is a bolting silk, and the mesh number of the bolting silk is selected according to the species and size of shellfish larvae.
6. The inflatable shellfish larva water changing net cage device according to claim 1, wherein the distance between the fixing ring of the drainage hard tube at the lower part of the inner frame and the bottom of the inner frame is 15-20 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921765384.0U CN211020558U (en) | 2019-10-21 | 2019-10-21 | Inflatable shellfish larva water changing net cage device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921765384.0U CN211020558U (en) | 2019-10-21 | 2019-10-21 | Inflatable shellfish larva water changing net cage device |
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| CN211020558U true CN211020558U (en) | 2020-07-17 |
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| CN201921765384.0U Active CN211020558U (en) | 2019-10-21 | 2019-10-21 | Inflatable shellfish larva water changing net cage device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110574722A (en) * | 2019-10-21 | 2019-12-17 | 中国科学院海洋研究所 | inflatable shellfish larva water changing net cage device and using method thereof |
| CN112219786A (en) * | 2020-10-30 | 2021-01-15 | 浙江省海洋水产养殖研究所 | Simple water changing device suitable for seedling raising pond and water changing method thereof |
-
2019
- 2019-10-21 CN CN201921765384.0U patent/CN211020558U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110574722A (en) * | 2019-10-21 | 2019-12-17 | 中国科学院海洋研究所 | inflatable shellfish larva water changing net cage device and using method thereof |
| CN112219786A (en) * | 2020-10-30 | 2021-01-15 | 浙江省海洋水产养殖研究所 | Simple water changing device suitable for seedling raising pond and water changing method thereof |
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