CN201821761U - Tester for gas bubble disease - Google Patents
Tester for gas bubble disease Download PDFInfo
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- CN201821761U CN201821761U CN2010201535491U CN201020153549U CN201821761U CN 201821761 U CN201821761 U CN 201821761U CN 2010201535491 U CN2010201535491 U CN 2010201535491U CN 201020153549 U CN201020153549 U CN 201020153549U CN 201821761 U CN201821761 U CN 201821761U
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Abstract
The utility model provides a tester for a gas bubble disease, belonging to the research technology field of fish physiology. The tester comprises a high pressure water tank, a high pressure return pipe, a return aeration water channel, a water pump, a flowmeter, and a water inlet pipe successively connected. The tester is advantaged by controlling pressure in the high pressure water tank via the high pressure return pipe and falling tail water to the return aeration water channel, making return aeration reach a nearly-saturated state, using the return water tank as a temporary-keeping tank for test fish, and making test-used fish adapt to saturated aeration water under constant pressure, with increase of pressure, the tail water is farer away from the return aeration water tank, making return aeration more sufficient, and guaranteeing a gas supersaturation state under a pressurized state. The whole test device is also advantaged by small occupying area, and providing of sufficient pressure and supersaturation to perform gas bubble disease tests.
Description
Technical field
A kind of gas diseases experimental rig of the utility model belongs to fish physiological Study technical field.
Background technology
(Gas Bubble Trauma is a kind of because physical cause causes the disease of fish physiology injury GBT) to gas diseases.Mainly be owing to partial pressure summation in the water is gas supersaturation (Dissolved Gas Supersaturation, fish somatic damage that DGS) causes or a dead disease above atmospheric pressure.
Dissolved gas supersaturation meeting causes a series of fish physiological phenomenon, and these phenomenons are that be harmful to or even fatal.Marsh in 1905 and Gorham have described forming process and the extent of injury (Marsh M C, 1910) of aeroembolism at the fish blood circulation system for the first time particularly.The sixties in 20th century, (Columbia and Snake River) built a large amount of high dams for Colambia River and Snake, the river of letting out down at a high speed during the flood discharge is brought into the river with a large amount of gases, cause the supersaturation of dam gas downstream, total gas pressure and atmospheric difference are up to 400mmHg (EbelW J, 1969 in the water; ClarkM J R, 1977; Weitkamp DE, 1980), cause the particularly extensive death of dog salmon of fish, thereby caused the concern of the river gas supersaturation that people cause high dam, and carried out the correlative study of river gas supersaturation and gas diseases.Ebel etc. (1969) have studied in the Colombia river nitrogen supersaturation to the influence of dog salmon and rainbow trout; Beiningen etc. (1970) have studied and have dissolved the influence of nitrogen to the Snake dog salmon in the John Day dam; Ebel (1975) has studied dam and has caused the influence of gas supersaturation to Colombia Snake dog salmon and rainbow trout.Later stage eighties Krise and Herman (1989), Krise et al (1990), and Krise and Smith (1991) begin one's study low-level DGS to hatching lake trout in earlier stage and the influence of Atlantic salmon.The result shows that as other trout and Pacific Ocean salmon genus, the young stage of these fishes has stronger resistivity to the influence of DGS, along with this resistivity of the growth of fish is disappearing.External much studies show that, because the gas supersaturation that the high dam earial drainage causes causes gas diseases can make a large amount of fish kills.
At home, in the natural river because the research of the gas diseases that causes of dam is less.Chinese carp juvenile fish and the adult fish (NSFC 30490230 projects 2006 annual reports) of only finding to suffer from bubble illness known today in many places, downstream, Ge Zhou Ba, the Changjiang river man spawning site for fish section.2003～2004 annual dissolved oxygen concentration Monitoring Data that provide according to monitoring water environment center, the Yangtze River Gorges show, mausoleum, Huang Ling, Three Gorges Dam downstream and Dongyue Temple section saturation dissolved oxygen 8～September in 2003 have all surpassed 120%, the saturation dissolved oxygen that September, maximum saturation reached mausoleum, 130%, 2004 year Huang Ling in 6～October section has all surpassed 110%.Because dissolving is an air in the water body, thus follow the dissolved oxygen supersaturation generally all can have the supersaturation of dissolving nitrogen because nitrogen can not absorb decomposition in the fish body, thus much studies show that the nitrogen supersaturation be gas diseases main diseases because of.
But do not see yet up to now a kind of can be in the laboratory, adjust the device that the gas degree of super saturation be carried out the gas diseases test in the current by control hydraulic pressure and flow.
Summary of the invention
The purpose of this utility model is to provide a kind of fish sick experimental rig, with satisfy simulation in natural water body the supersaturation water body to the injury of fish.
In order to reach purpose of the present invention, adopt following technical scheme:
A kind of gas diseases experimental rig comprises: high-pressure water tank, high pressure return pipe, backwater aeration tank, water pump, flowmeter, water inlet pipe connect in turn.Particularly the high-pressure water tank downstream connects high pressure return pipe, backwater aeration tank, and the upstream extremity upstream direction connects water inlet pipe, flowmeter and water pump.
Above-mentioned high-pressure water tank is transparent lucite on four sides, and the 5th is the steel plate block, and the 6th is steel plate door.Lucite can be reduced to toxicity through after a while flushing does not have injury to fish, therefore selects the four sides of transparent lucite as high-pressure water tank for use.Test learns that lucite thickness is not less than 5cm, and steel plate thickness is not less than 2cm, reaches above thickness of material and just can not deform under the 8m head.
Above-mentioned steel plate block is provided with two holes, and a hole taps into water pipe, and a hole picks out water pipe.
Above-mentioned high pressure return pipe is provided with a plurality of threeways, each threeway spacing 0.5～2m.
When carrying out pilot fish, different transverse tube distances can be divided into water pressure different grades, and different pressure ratings can obtain different saturated concentrations.The transverse tube potential energy difference of while differing heights, the air capacity difference of carrying under one's arms when falling into backwater aeration tank.A plurality of transverse tubes are set simultaneously can conveniently regulating and controlling hydraulic pressure and hold tolerance under the arm.Transverse tube distance is overstocked little to the result of the test influence, has increased the complexity of device on the contrary, through multi-scheme relatively the back inventor think that the discrepancy in elevation requirement that threeway spacing 0.5～2m can satisfy the stream that sluices down can reduce the equipment making difficulty again.
Between above-mentioned water pump and the flowmeter valve is set.This equipment is that fixed water pump and valve combination are frequently selected in cost saving, and the flow of valve control of pump so that the test fish in high-pressure water tank avoids causing overworking death owing to flow velocity is too high, influences test effect.
Specifically, the utility model beneficial effect is as follows:
1, can utilize different flows and head to obtain the aerated flow of different solubilities;
2, the active situation of viewing test fish in high aerated flow preferably;
3, the test fish can be taken out and support temporarily paired observation high pressure aeration life in backwater aeration tank
Test fish alive is different with normal pressure aeration fish.
Description of drawings
Fig. 1 is the utility model main body front elevational schematic;
Fig. 2 is the utility model high-pressure water tank schematic side view;
Fig. 3 is the utility model high pressure return pipe schematic diagram;
Fig. 4 is the whole schematic top plan view of the utility model.
Embodiment
Following mask body is further described the utility model in conjunction with Figure of description, but is not used for limiting protection domain of the present utility model.
A kind of gas diseases experimental rig of the utility model comprises: high-pressure water tank 1, high pressure return pipe 2, backwater aeration tank 3, water pump 4, flowmeter 5, water inlet pipe 6 connect in turn.
Described high-pressure water tank is that 7, the five transparent in lucite is that 8, the six of steel plate block are steel plate door 9 on four sides.Lucite thickness is 5cm, and steel plate thickness is 2cm.
Described steel plate block is provided with two holes, and a hole taps into 6, one holes of water pipe and picks out water pipe 10.
Described high pressure return pipe 2 is provided with a plurality of threeways 11, and each threeway 11 connects a joint transverse tube 12.
Distance is 1m between described threeway.
Between described water pump 4 and the flowmeter 5 valve 13 is set.
Claims (6)
1. a gas diseases experimental rig comprises: high-pressure water tank, water pump and flowmeter is characterized in that: described high-pressure water tank downstream connects high pressure return pipe, backwater aeration tank, and the upstream extremity upstream direction connects water inlet pipe, flowmeter and water pump.
2. a kind of gas diseases experimental rig according to claim 1 is characterized in that: described high-pressure water tank is transparent lucite on four sides, and the 5th is the steel plate block, and the 6th is steel plate door.
3. a kind of gas diseases experimental rig according to claim 2 is characterized in that: described steel plate block is provided with two holes, and a hole taps into water pipe, and a hole picks out water pipe.
4. a kind of gas diseases experimental rig according to claim 1 is characterized in that: described high pressure return pipe is provided with a plurality of threeways, each three connect one the joint transverse tube.
5. a kind of gas diseases experimental rig according to claim 4 is characterized in that: described a plurality of threeway spacings are 0.5m～2m.
6. a kind of gas diseases experimental rig according to claim 1 is characterized in that: between described water pump and the flowmeter valve is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201535491U CN201821761U (en) | 2010-04-09 | 2010-04-09 | Tester for gas bubble disease |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201535491U CN201821761U (en) | 2010-04-09 | 2010-04-09 | Tester for gas bubble disease |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201821761U true CN201821761U (en) | 2011-05-11 |
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ID=43960326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201535491U Expired - Lifetime CN201821761U (en) | 2010-04-09 | 2010-04-09 | Tester for gas bubble disease |
Country Status (1)
| Country | Link |
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| CN (1) | CN201821761U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435414A (en) * | 2011-07-28 | 2012-05-02 | 水利部交通运输部国家能源局南京水利科学研究院 | Method of decompression test of air entrainment and cavitation alleviation model |
| CN102626058A (en) * | 2012-04-17 | 2012-08-08 | 戴会超 | Method for experimenting dissolved oxygen saturation threshold of damaging fishes |
| CN102657116A (en) * | 2012-04-27 | 2012-09-12 | 中国水产科学研究院长江水产研究所 | Device for realizing hydrostatic tests of aquatic organisms based on principle of communicating vessels and method for device |
| CN108157243A (en) * | 2018-02-05 | 2018-06-15 | 水利部交通运输部国家能源局南京水利科学研究院 | It is a kind of to calculate test method of the fish to dissolved gas tolerance degree |
| CN108283155A (en) * | 2018-02-05 | 2018-07-17 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of slot type supersaturated gas dissolving current water generating means |
| CN115152683A (en) * | 2022-07-29 | 2022-10-11 | 广东海洋大学 | Simulation test device for research on water body pressure for fish coping |
-
2010
- 2010-04-09 CN CN2010201535491U patent/CN201821761U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435414A (en) * | 2011-07-28 | 2012-05-02 | 水利部交通运输部国家能源局南京水利科学研究院 | Method of decompression test of air entrainment and cavitation alleviation model |
| CN102435414B (en) * | 2011-07-28 | 2014-09-24 | 水利部交通运输部国家能源局南京水利科学研究院 | Method of decompression test of air entrainment and cavitation alleviation model |
| CN102626058A (en) * | 2012-04-17 | 2012-08-08 | 戴会超 | Method for experimenting dissolved oxygen saturation threshold of damaging fishes |
| CN102657116A (en) * | 2012-04-27 | 2012-09-12 | 中国水产科学研究院长江水产研究所 | Device for realizing hydrostatic tests of aquatic organisms based on principle of communicating vessels and method for device |
| CN108157243A (en) * | 2018-02-05 | 2018-06-15 | 水利部交通运输部国家能源局南京水利科学研究院 | It is a kind of to calculate test method of the fish to dissolved gas tolerance degree |
| CN108283155A (en) * | 2018-02-05 | 2018-07-17 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of slot type supersaturated gas dissolving current water generating means |
| CN108283155B (en) * | 2018-02-05 | 2020-12-08 | 水利部交通运输部国家能源局南京水利科学研究院 | Trough type supersaturated dissolved gas flowing water body generation device |
| CN115152683A (en) * | 2022-07-29 | 2022-10-11 | 广东海洋大学 | Simulation test device for research on water body pressure for fish coping |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110511 |
|
| CX01 | Expiry of patent term |