CN104891617A - Floating type flowing water culture water trough - Google Patents
Floating type flowing water culture water trough Download PDFInfo
- Publication number
- CN104891617A CN104891617A CN201510285605.4A CN201510285605A CN104891617A CN 104891617 A CN104891617 A CN 104891617A CN 201510285605 A CN201510285605 A CN 201510285605A CN 104891617 A CN104891617 A CN 104891617A
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- China
- Prior art keywords
- water
- tank
- gas
- picotan
- pipe
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 100
- 238000007667 floating Methods 0.000 title claims abstract description 26
- 238000005273 aeration Methods 0.000 claims abstract description 11
- 230000001413 cellular effect Effects 0.000 claims description 5
- 239000003153 chemical reaction reagent Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 26
- 241000251468 Actinopterygii Species 0.000 description 13
- 238000010586 diagram Methods 0.000 description 10
- 238000009360 aquaculture Methods 0.000 description 6
- 244000144974 aquaculture Species 0.000 description 6
- 239000002689 soil Substances 0.000 description 5
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 3
- 238000009395 breeding Methods 0.000 description 3
- 230000001488 breeding effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 241000252230 Ctenopharyngodon idella Species 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000000593 degrading effect Effects 0.000 description 2
- 210000003608 fece Anatomy 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 241000143060 Americamysis bahia Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 201000002451 Overnutrition Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 239000002207 metabolite Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 235000020823 overnutrition Nutrition 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Landscapes
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a floating type flowing water culture water trough. A water trough water inlet is formed at one end of the water trough; a water trough water outlet is formed at the other end of the water trough; the water trough water inlet opens downwards; the water trough water outlet opens upwards; a gas stripping water device is arranged in the water trough water inlet; the gas stripping water device is a pipe arranged vertically; the lower end of the pipe is a water inlet of the gas stripping water device, and the upper end of the pipe is a water outlet of the gas stripping water device; and an aeration inlet is formed at the lower part of the pipe. The device provided by the invention is simple and convenient to operate, is economical and practical, can realize high-density cultivation under the cultivation condition of guaranteeing stable water quality, can reduce reagent consumption by more than 90% and can increase the yield.
Description
Technical field
The present invention relates to a kind of floating flowing water culture tank, specifically utilize air lift water as major impetus, promote the motion of current direction tank trailing edge, while realizing oxygenation, automatically realize fish excrement, residual bait at collecting dung district precipitation concentration, belong to technical field of aquaculture.
Background technology
In existing fish cultural technique, generally there is several form: 1, industrial circulating water cultivating pattern; 2, traditional pond cultivates.1, in industrial circulating water cultivating pattern, the general tank upper end that adopts intakes, the water outlet of tank lower end.Each cultivation flume regularly from the solidliquid mixture of bottom defecate, residual bait and waste water, after these mixtures equipment for separating liquid from solid focused in recirculation system carries out solid-liquid separation, enters next link and carries out water quality regulation.In general, it is higher to there is cost in industrial circulating water cultivating, the inherent defect that operation expense is high.2, in traditional cultivating pool, planktonic organism is the producer, and filter-feeding fish is human consumer, and the microorganism in water body is decomposer.Aquaculture water is the life area of cultivation object, is again the decomposition place of ight soil, residual bait etc., and planktonic cultivation pond.The breeding way of this " three pond unifications ", easily causes the disruption of ecological balance between " human consumer, producer's Sum decomposition person ".For separating of or the water body of degrading cultivation object meta-bolites very few, usually particularly evident in high-density breeding pattern, fast growing period, often through refreshing the water periodically regulating water quality.In addition, the aquaculture model of " three pond unifications " too increases management difficulty, in the urgent need to a kind of by aquaculture model independent for different ecological functional unit, carries out modularization construction according to different block functions, to improve production and degradation efficiency.
Summary of the invention
The object of the invention is to overcome above the deficiencies in the prior art, and a kind of cultivation flume of applied widely, easy and simple to handle, economical and practical, water conditioning is provided.
The present invention is realized by following technique means:
A kind of floating flowing water culture tank, this tank one end is provided with tank water-in, the other end is provided with sink outlet, tank water-in is opening down, and sink outlet is opening up, is wherein provided with gas picotan in tank water-in, gas picotan is the pipe vertically arranged, the lower end of pipe is gas picotan water-in, and upper end is gas picotan water outlet, and the bottom of pipe is provided with aeration entrance.
Described floating flowing water culture tank, is provided with the settling bath lower than tank bottom surface below sink outlet.
Described floating flowing water culture tank, is provided with hexagon cellular inclined tube above settling bath.
Described floating flowing water culture tank, tank water-in is grid-like.
Described floating flowing water culture tank, the width of grid is less than 5mm.
Described floating flowing water culture tank, tank is sectional type, for removably connecting between each section.
Described floating flowing water culture tank, when gas picotan carries out aeration water lift, flow velocity is 0.04m/s.
The water body such as traditional pond or reservoir enters into cultivation flume by water inlet notch, utilizes air lift water as major impetus, pushes away water device and promotes the motion of current direction tank trailing edge.Because fish have stream habit of tracing back, fish body is in tank upstream, and ight soil, residual bait etc. slowly to the motion of tank trailing edge, finally precipitate in tank end collecting dung district under the effect of current.Regularly extract ight soil settling region ight soil by water pump, make for fertilizer after upgrading tower is concentrated.In traditional pond, place this tank of some amount, rest surface all plants emergent, for being dissolved in the nutritive substance of water body in tank of degrading further, and anti-water-stop body overnutrition.
Compared with cultivating with traditional pond, superiority of the present invention is as follows:
(1) the present invention only goes out the ultimate production of traditional pond with the water surface aquaculture of traditional pond about 2%, and all the other waters surface of 98% are used for purifying water body, water quality indices qualified discharge, fishing survival dose reduces more than 90%, flesh quality significantly improves, tank convenient management, and it is convenient to fish for.
(2) the present invention is at sink outlet place because current slow down, and ight soil, residual bait deposit automatically in settling bath, regularly extract settling out cultivation flume, ensures that aquaculture water water quality is in high-quality state all the time.Settling, after concentrated, carry out fermentative processing, makes fertilizer after drying.
(3) tank water-in of the present invention can be arranged to grid-like, and width is less than 5 millimeters, avoids wild fishes to enter cultivation flume and grabs feed, affect cultured fishes and ingest.
(4) tank water-in of the present invention can be arranged on the distance water surface less than 1.8 meters, by extracting water body lower layer of water, carrying out aeration, and utilizing solar exposure, contributing to sterilizing, reduces cause of disease.Accelerate the interchange of water body levels by extracting water body lower layer of water, lower floor's water body dissolved oxygen situation is improved.
(5) tank of the present invention can be sectional type, for removably connecting between each section, ensures transport and convenient disassembly, and actual production can suitably increase and decrease tank cultivation segment length according to the specification of cultured fishes, size, length.
(6) tank water inlet of the present invention is provided with hexagon cellular inclined tube, adds wetted perimeter area, improves the processing power of settling tank; Shorten particles settling distance, thus shorten sedimentation time; Increase the desilting area of settling tank, thus improve processing efficiency.
(7) tank entirety of the present invention adopts floating structure, can adapt to any water body (lake, pond, ocean, river etc.) of different water depth, possess broad applicability.
(8) the present invention utilizes air lift water as the major impetus promoting water movement, has both met high-density fish culture dissolved oxygen demand, ensures that again current are in flow state all the time, accelerates water circulation and ammonia nitrogen degradation, be conducive to the quick growth of fish.
Accompanying drawing explanation
Fig. 1 is floating flowing water culture tank schematic diagram in embodiment 1;
Fig. 2 is floating flowing water culture tank water flow diagram in embodiment 1;
Fig. 3 is gas picotan schematic diagram;
Fig. 4 is that gas picotan arranges schematic diagram;
Fig. 5 is tank water-in schematic diagram;
In above Fig. 1-Fig. 5,1 is sink outlet, and 2 is settling bath, and 3 is tank water-in, and 4 is gas picotan, and 5 is gas picotan water outlet, and 6 is gas picotan water-in, and 7 is aeration entrance.
embodiment:
Below in conjunction with accompanying drawing, the present invention is further described, but be not construed as limiting the invention.
Embodiment 1
As shown in Figure 1, for floating flowing water culture tank schematic diagram provided by the invention, this tank one end is provided with tank water-in 3, and the other end is provided with sink outlet 1, and tank water-in 3 is opening down, sink outlet 1 is opening up, wherein be provided with gas picotan 4 in tank water-in 3, gas picotan 4 is the pipe vertically arranged, and the lower end of pipe is gas picotan water-in 6, upper end is gas picotan water outlet 5, and the bottom of pipe is provided with aeration entrance 7.
Managing the ability of precipitation in order to improve sink outlet 1 everywhere, being provided with hexagon cellular inclined tube at groove water outlet 1, below hexagon cellular inclined tube, be provided with the settling bath 2 lower than tank bottom surface simultaneously.
As shown in Figure 2, for floating flowing water culture tank water flow diagram of the present invention, can find out, lower layer of water promotes to carry in tank through gas picotan 4 by current, under continuous gas stripping, current flow towards the direction of sink outlet 1, finally reach the object of constantly changing water.
As shown in Figure 3, for gas picotan schematic diagram, can find out, gas picotan is the pipe vertically arranged, the lower end of pipe is gas picotan water-in 6, upper end is gas picotan water outlet 5, and the lower end of pipe is gas picotan water-in 6, and upper end is gas picotan water outlet 5, the bottom of pipe is provided with aeration entrance 7, when continuous aeration, the water in pipe is promoted to enter from gas picotan water-in 6 by air lift, flows out from gas picotan water outlet 5.
As shown in Figure 4, for gas picotan of the present invention arranges schematic diagram, can find out, gas picotan is arranged side by side, and adds water lift speed and water lift amount.
Shown in Fig. 5, be tank water-in schematic diagram, tank water-in is set to grid-like, can play a role in filtering, avoid wild fauna and flora to enter tank to the animals and plants in water body.
Floating flowing water culture tank provided by the invention can be sectional type, for removably connecting between each section, ensure that the facility of hydraulic flume transport and assembling, can increase according to cultivating condition or reduce the length of tank simultaneously.Grid width is less than 5mm and can effectively stops wild fishes and shrimps etc. to enter tank, and when carrying out aeration water lift, flow velocity is preferably 0.04m/s, can reach the balance well continuing to change water and cultivation.
Floating flowing water culture tank preparation provided by the invention is drawn materials conveniently, sink structure can adopt the material construction such as angle steel, angle bar to become framework, and stainless steel plate, alloy sheets, galvanized sheet or various plastic plate, malthoid canvas etc. can be adopted shaping for sink body and welding is made.
10 standard floating flowing water are built up, each tank specification 15 meters × 1 meter × 1 meter in the traditional pond of 10 mu of waters surface.Put Grass Carp Juveniles in a suitable place to breed by the end of June, stocking size is 250 grams/fish, and density is 75 tails/rice
2, draw a design by the end of September and measure output 130 kgs/m
2, ultimate production 1950 kilograms.Daily gain 10-11%, feed coefficient is about 1.5.
Cultivation section and the pH of purifying area between 7-9, in weakly alkaline; Ammonia nitrogen value fluctuates between 0.05 ~ 0.35; Nitrite number presents the trend risen gradually.PH, ammonia nitrogen, nitrite these three value is at the upper and lower noon without significant difference, and the pH of cultivation section and purifying area is without significant difference, but the value of the ammonia nitrogen of purifying area and nitrite is lower than cultivation section.In whole breeding process, except regularly with except hypochlorite disinfectant, do not use other drug.The grass carp cultivated in tank, body colour is good, and build is in perfect streamlined, and fishery products quality significantly improves.
Claims (7)
1. a floating flowing water culture tank, it is characterized in that, this tank one end is provided with tank water-in, and the other end is provided with sink outlet, and tank water-in is opening down, sink outlet is opening up, wherein be provided with gas picotan in tank water-in, gas picotan is the pipe vertically arranged, and the lower end of pipe is gas picotan water-in, upper end is gas picotan water outlet, and the bottom of pipe is provided with aeration entrance.
2. floating flowing water culture tank according to claim 1, is characterized in that, be provided with the settling bath lower than tank bottom surface below sink outlet.
3. floating flowing water culture tank according to claim 2, is characterized in that, be provided with hexagon cellular inclined tube above settling bath.
4. floating flowing water culture tank according to claim 1, is characterized in that, tank water-in is grid-like.
5. floating flowing water culture tank according to claim 4, it is characterized in that, the width of grid is less than 5mm.
6. floating flowing water culture tank according to claim 1, is characterized in that, tank is sectional type, for removably connecting between each section.
7. floating flowing water culture tank according to claim 1, is characterized in that, when gas picotan carries out aeration water lift, flow velocity is 0.04m/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510285605.4A CN104891617B (en) | 2015-05-29 | 2015-05-29 | A kind of floating flowing water culture sink |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510285605.4A CN104891617B (en) | 2015-05-29 | 2015-05-29 | A kind of floating flowing water culture sink |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104891617A true CN104891617A (en) | 2015-09-09 |
| CN104891617B CN104891617B (en) | 2018-04-24 |
Family
ID=54024655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510285605.4A Expired - Fee Related CN104891617B (en) | 2015-05-29 | 2015-05-29 | A kind of floating flowing water culture sink |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104891617B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105236633A (en) * | 2015-09-30 | 2016-01-13 | 海南卓海水产种苗有限公司 | Processing method of water for breeding young prawns |
| CN105254003A (en) * | 2015-11-20 | 2016-01-20 | 无锡山川环保机械有限公司 | River water purification equipment |
| CN105519483A (en) * | 2016-01-27 | 2016-04-27 | 金华市婺城区政海水产养殖场 | Running water aquaculture water tank floating on water surface and circulative culture system |
| CN107018941A (en) * | 2017-04-06 | 2017-08-08 | 英山县名德鱼苗孵化养殖有限公司 | A kind of circular biological cultivating system and buoyancy tank |
| CN112438227A (en) * | 2019-09-03 | 2021-03-05 | 渔淼（上海）信息技术有限公司 | Floating type water tank culture system with water quality purification device |
| CN112655642A (en) * | 2020-12-21 | 2021-04-16 | 武汉市农业科学院 | Novel aeration water pushing device and method for flowing water culture tank |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2161612Y (en) * | 1993-04-15 | 1994-04-13 | 哈尔滨建筑工程学院成人教育学院 | Flat hexagon pipe chute precipitating equipment |
| CN102674625A (en) * | 2012-02-16 | 2012-09-19 | 浙江大学 | Treatment method for greenhouse turtle breeding wastewater |
| CN203416719U (en) * | 2013-07-24 | 2014-02-05 | 吴江市水产养殖有限公司 | Circulating water flowing fishpond |
| CN203474598U (en) * | 2013-09-18 | 2014-03-12 | 北京格兰特膜分离设备有限公司 | Water purification device |
| CN104430120A (en) * | 2013-09-22 | 2015-03-25 | 天津市兴盛海淡水养殖有限责任公司 | Aquatic product culture pond system with settling tank |
-
2015
- 2015-05-29 CN CN201510285605.4A patent/CN104891617B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2161612Y (en) * | 1993-04-15 | 1994-04-13 | 哈尔滨建筑工程学院成人教育学院 | Flat hexagon pipe chute precipitating equipment |
| CN102674625A (en) * | 2012-02-16 | 2012-09-19 | 浙江大学 | Treatment method for greenhouse turtle breeding wastewater |
| CN203416719U (en) * | 2013-07-24 | 2014-02-05 | 吴江市水产养殖有限公司 | Circulating water flowing fishpond |
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| CN104430120A (en) * | 2013-09-22 | 2015-03-25 | 天津市兴盛海淡水养殖有限责任公司 | Aquatic product culture pond system with settling tank |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105236633A (en) * | 2015-09-30 | 2016-01-13 | 海南卓海水产种苗有限公司 | Processing method of water for breeding young prawns |
| CN105254003A (en) * | 2015-11-20 | 2016-01-20 | 无锡山川环保机械有限公司 | River water purification equipment |
| CN105519483A (en) * | 2016-01-27 | 2016-04-27 | 金华市婺城区政海水产养殖场 | Running water aquaculture water tank floating on water surface and circulative culture system |
| CN105519483B (en) * | 2016-01-27 | 2018-05-01 | 金华市婺城区政海水产养殖场 | One kind is bubbled through the water column flowing water culture sink and recirculation system |
| CN107018941A (en) * | 2017-04-06 | 2017-08-08 | 英山县名德鱼苗孵化养殖有限公司 | A kind of circular biological cultivating system and buoyancy tank |
| CN107018941B (en) * | 2017-04-06 | 2022-07-15 | 英山县名德鱼苗孵化养殖有限公司 | Ecological farming systems of circulation and flotation tank |
| CN112438227A (en) * | 2019-09-03 | 2021-03-05 | 渔淼（上海）信息技术有限公司 | Floating type water tank culture system with water quality purification device |
| CN112655642A (en) * | 2020-12-21 | 2021-04-16 | 武汉市农业科学院 | Novel aeration water pushing device and method for flowing water culture tank |
| CN112655642B (en) * | 2020-12-21 | 2023-10-24 | 武汉市农业科学院 | Novel flowing water culture tank aeration pushes away water device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104891617B (en) | 2018-04-24 |
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