70results about How to "Reduce the number of water changes" patented technology

The invention relates to a composite bactericide of nano copper and polyhexamethylene guanidine and a processing technic. The composite bactericide consists of nano copper, polyhexamethylene guanidine, a dispersant, a stabilizer, a complexing agent and water. The composite bactericide is an aqueous solution. The weight ratio of nano copper and polyhexamethylene guanidine is (1:1)-(1:20) and the total weight of nano copper, polyhexamethylene guanidine accounts for 2-50% by mass of the total solution, the dispersant accounts for 0.1-10% by mass of the total solution, the stabilizer accounts for 0.1-30% by mass of the total solution and the complexing agent accounts for 1-30% by mass of the total solution, and the rest of the solution is water. The composite bactericide is high in sterilizing efficiency and low in cost.

The invention discloses an air purifying and filtering system, which comprises a box body; the box body is divided into two parts by a flexible diaphragm from top to bottom; the upper part is a washing chamber filled with water, and the lower part is a pneumatic chamber connected with an air pump; the side wall of the pneumatic chamber is provided with a vent hole with a sealing cover; the upper and lower ends of side wall of the washing chamber are respectively provided with a water inlet and a water outlet; the water inlet and water outlet are provided with sealing covers; the top of the box body is provided with an air inlet and an air outlet; the air inlet is connected with an inlet pipe equipped with a blower; the inlet pipe is communicated with the bottom of the washing chamber; and the top half of the washing chamber is provided with a main filtering layer. The system can clean the main filter layer automatically and reduce the work of replacing and cleaning the filter net, and also has a good filtering effect to obtain dry pure air.

The invention belongs to the field of rice cultivation and discloses a seed ventilated soaking method in rice seed accelerating germination. The method comprises the following steps: soaking rice seeds in a seed soaking solution, introducing gases into the soaked rice seeds every 10 minutes for 5-10 minutes for ventilating, controlling the temperature to be 25 DEG C within 24-72 hours before the seed soaking and accelerating germination process, regulating the temperature to be 32 DEG C within the subsequent 24-48 hours, soaking the seeds under the condition of constant temperature until the seeds are broken and exposed, regulating the temperature to be 26 DEG C within the subsequent 24 hours for accelerating germination. According to the method, air is introduced into the bottom of the seed soaking solution in the seed soaking process, the oxygen content in the air in the soaking solution is guaranteed, and the problem that the water lacks of oxygen in the seed soaking process is solved. According to the method, the germination rate of rice seeds is 83.4 percent and is improved by 27 percent compared with the ventilation-free seed-soaking accelerating germination rate of 65.7, and the germination rate of the seeds is obviously improved. Moreover, the germination rate of the seeds is improved, the cost of the seeds can be saved, particularly the cost of hybrid rice seeds is saved, and the rice production is stabilized.

The invention discloses a method for using Chinese herbal medicine to prevent fish disease in aquaculture. The method for using the Chinese herbal medicine to prevent the fish disease in the aquaculture includes steps that 1) preparing medicine, wherein the medicine is composed of 3 to 5 grams of sweet wormwood, 1 to 3 grams of common andrographis herb, 1 to 3 grams of fructus forsythiae, 2 to 5 grams of light yellow sophora root, 3 to 5 grams of Chinese thorowax root, 2 to 5 grams of eucalyptus leaf, 2 to 4 grams of Chinese gentian, 1 to 3 grams of Chinese mugwort leaf and 1 to 3 grams of apocynum venetum; 2) arranging a framework-shaped feeding region in a fishpond; 3) putting the medicine in a mesh bag to obtain a Chinese herbal medicine hanging bag; hanging the Chinese herbal medicine hanging bag on the framework-shaped feeding region, and controlling the depth of the Chinese herbal medicine hanging bag in the water. When feeding, most of fishes in the fishpond gather at the feeding region, and the fishes wear and collide the Chinese herbal medicine hanging bag to promote the release of the medicine in the Chinese herbal medicine hanging bag so as to prevent the fish disease.

The invention discloses an intermediate aquaculture system for pinctada maxima. The intermediate aquaculture system comprises an outer ring slot and an inner slot formed by encircling the outer ring slot, wherein a communicating plate, a water level plate, a screen and a baffle are arranged in the outer ring slot; a clearance is reserved between the bottom of the communicating plate and the bottom surface of the outer ring slot; the water level plate and the baffle are plugged in the outer ring slot to form a filtering water chamber; the screen covers the top of the filtering water chamber and is inclined from the water level plate to the baffle; a sewage drain pipe is arranged at the lower end of the screen; an attachment device for attaching beneficial bacteria is arranged in the inner slot; a clean water outlet communicated with an aquaculture region is formed in the slot wall of the inner slot; water in the aquaculture region flows into the filtering water chamber after being filtered by the screen and then is extracted to the inner slot; by beneficial bacteria purification treatment, the water flows into the aquaculture region from the clean water outlet so as to realize water body circulation. The intermediate aquaculture system for pinctada maxima can be used for automatically purifying aquaculture water, so that the water quality can be kept in a good state for a long time; therefore the water change frequency is reduced, irritation to pinctada maxima stress is alleviated, and loss of bait algae along with water drainage is also reduced, so that the supply of baits is reduced, and the labor intensity is correspondingly reduced.

The invention discloses a water circulation type split mop barrel. The water circulation type split mop barrel comprises a washing barrel and a dehydrating barrel which are independent from each other, wherein a cleaning mechanism is arranged in the washing barrel, a dehydrating mechanism and a water circulation device are arranged in the dehydrating barrel, the washing barrel and the dehydrating barrel can be buckled with each other, the water circulation device comprises a water suction pump and a water guide pipe, the water suction pump and the water guide pipe are mounted in the dehydrating barrel, a water inlet of the water suction pump is positioned at the lowest liquid level of the dehydrating barrel, a water outlet of the water suction pump is connected with one end of the water guide pipe, the other end of the water guide pipe communicates with the washing barrel, and the dehydrating mechanism drives the water suction pump. According to the water circulation type split mop barrel, the packaging, transportation and warehousing cost can be saved, meanwhile, the living space occupied by storage is also reduced, the water adding, pouring and changing operations are labor-saving, more important, the water circulation in the two barrels is realized, therefore, the water changing frequency is reduced, the water changing times is reduced during the use process of a user, the water changing operation is labor-saving, and finally, the convenience in the use process is really promoted.

The invention discloses a shrimp culturing method. The shrimp culturing method comprises the following steps that (1) an aquaculture pond is prepared according to a conventional culturing method, and shrimp seeds are thrown into the aquaculture pond according to a conventional density; (2) 10 kilograms to 20 kilograms of bioflocculation provenance is poured into each mu every day when the ages of the shrimps are smaller than one month, and 20 kilograms to 30 kilograms of bioflocculation provenance is poured into each mu every day when the ages of the shrimps are larger than one month; (3) a water bottom aeration machine is used for oxygenation in the whole culturing process. The method for preparing the bioflocculation provenance comprises the steps that brown sugar, rice bran and feed additives are evenly mixed and then are added to clean fresh water to be evenly stirred, sealing is conducted, fermentation is conducted for three to four days at the temperature of 25-32 DEG C, and then the bioflocculation provenance is obtained, wherein the weight ratio of the clean fresh water, to the brown sugar, to the rice bran and to the feed additives is 250:5-8:30-40:2-3. By the adoption of the shrimp culturing method, the feed coefficient of shrimp culturing ranges from 0.7 to 0.8; compared with traditional culturing feed, the growing period of the shrimps cultured according to the method is shortened by 15 days to 20 days under the condition that the adult shrimps are obtained.

The invention discloses a bubble wrap pool cover, comprising a base layer which is suitable for covering a pool and a bubble layer which is connected on the base layer, wherein, the bubble layer is provided with a plurality of bubbles. The invention also discloses a production method of the bubble wrap pool cover, which comprises the following steps: firstly, the following raw materials are mixed by weight percentage: 99.7 percent of polyethylene resin, 0.2 percent of anti-UV agent and 0.1 percent of antioxidant; secondly, the mixture is extruded from a double-slit casting mould, and then vacuum blistered by a bubble roll into a bubble cap, and closed by hot bonding into a neat and independent bubble wrap; and finally, the bubble wrap is cut, spliced or sewn into a bubble wrap pool cover product. The bubble wrap pool cover can avoid impurities from falling into the pool water to cause pollution, and avoid inconvenience caused by the increase or decrease of the temperature.

Th invention discloses a dish-washing machine easy to clean, and relates to a dish-washing machine. After the dish-washing machine is subjected to self-cleaning repeatedly, multiple food residues arestill adsorbed to the surface of a draining board, manual cleaning is needed, the vision feeling is affected, and the user experience is poor. The dish-washing machine comprises a tank, a trough body,a panel, a cleaning assembly, a connector, a water inlet assembly, a drainage assembly and a cabinet, and the trough body is formed in the upper portion of the cabinet; the cleaning assembly comprises a water guide plate and a filter; the water guide plate is provided with a water outlet; the filter is of a bottomless structure and is installed on the lower portion of the water guide plate, an upper opening of the filter is communicated with the water outlet, and a lower opening of the filter is connected with a slag breaker which is installed below a water pumping area. According to the technical scheme, the water guide plate guides washing water to flow, cleaning is facilitated, the food residues cannot be accumulated on the surface, the washing water good in washing effect can flow into the pumping area rapidly, the water filtration rate cannot be affected after long-time use, and the water resource is effectively saved.

The invention relates to a method for reducing feed coefficient of Tilapia mossambica through adding a carbon source in culture water. According to the method, spreading starch accounting for 25%-35% of the overall feeding quantity of a day once a day within one hour after feeding. The invention also relates to application of starch for reducing feed coefficient of Tilapia mossambica. The method has the advantages that starch is added to the culture water of Tilapia mossambica to provide an organic carbon source for heterotrophicy bacteria in the culture water so that the heterotrophicy bacteria can use ammonia nitrogen in the water and the added starch to generate new bacterioproteins, therefore water quality is improved, water changing frequency is reduced, and dependence on the water resources during the culture process is lowered; in addition, the generated floc can be ate by Tilapia mossambica, therefore the feed utilization is improved, feeding quantity is lowered and demands on fish meal and fish oil serving as sources of proteins in the production process of feed can be reduced. The method has remarkable ecological effect, is an effective and sustainable culture way, is simple to operate and is suitable for wide popularization.

The invention relates to a refrigerating device for providing cooling water. The refrigerating device comprises a cabinet body, a compressor, two heat dissipation coil pipes, fans, a refrigerant storage tank, a water tank, a heat exchanger and a control cabinet, wherein the compressor, the heat dissipation coil pipes, the fans, the refrigerant storage tank, the water tank, the heat exchanger and the control cabinet are arranged in the cabinet body. The two fans are mounted on a top plate of the cabinet body. A water inlet pipe of the water tank is connected with a cold water port of the heat exchanger. A water outlet pipe of the water tank is connected with an inlet of a pump. An outlet of the pump is divided into two branch pipes, one branch pipe is an outward delivery cold water pipe, and the other branch pipe is connected with a load return hot water pipe. Cold water in the outward delivery cold water pipe and hot water in the hot water pipe are gathered to get into the heat exchanger and then get into the water tank. An air inlet of the heat exchanger is connected with an expansion valve through an air inlet pipe, and an air outlet of the heat exchanger is connected with an inlet of the compressor; an outlet pipe of the compressor is divided into two branch pipes connected with inlets of the two heat dissipation coil pipes correspondingly. Outlets of the two heat dissipation coil pipes are connected with an inlet of the refrigerant storage tank. An outlet of the expansion valve is connected with an air inlet of the heat exchanger. The refrigerating device is compact indesign and reasonable in layout and improves the cooling efficiency to the maximum extent.

The invention provides a leech culture device. The leech culture device comprises a culture pond, a water inlet, a water drainage port, a feeding device and a hook; the feeding device comprises a bait box and a recycling box; the recycling box is fixedly connected under the bait box; the bait box and the recycling box are hollow cylindrical containers with openings formed in the upper portions and the same radius, and multiple through holes are formed in the side wall and the bottom of the bait box. The invention further provides an ecological culture method. The method comprises the steps that bait is put into the bait box, the feeding device is vertically immersed into the culture pond, and it is guaranteed that the top end of the uppermost layer bait box is located 1-2 cm over the water surface. The leech culture device and the ecological culture method have the advantages that leeches can conveniently take feed, remaining bait can be cleaned conveniently and thoroughly, operation is easy while the good water quality in the culture pond is guaranteed, the labor cost is reduced, the culture efficiency is improved, and the culture benefit is increased.

The invention discloses a device for recycling, filtering and utilizing the wastewater of a large fish tank. The device comprises a body and is characterized in that a fishing cavity is arranged in the body, a hollow pipe is fixedly arranged on the left side of the body, a water inlet pipeline is communicated between the hollow pipe and the fishing cavity, a collecting device for collecting garbage such as duckweeds and water plants is arranged in the fishing cavity, and the wastewater is pumped into the fishing cavity through the water inlet pipeline. The device has the advantages that automatic water changing, water plant cleaning, manure cleaning, water filtering and the like can be performed on the large fish tank; compared with traditional simple physical and chemical filtering, the device can collect and separate the water plants falling from the fish tank first to prevent the fallen water plants from affecting the attractiveness of the fish tank and can independently collect sludge and manure and directly separate the sludge and the manure from the wastewater to reduce the contact time of manure and water so as to reduce the generation of ammonia and nitrite.

The invention relates to a method for culturing chelonians by utilizing a chelonian pool. The method comprises the following steps: adopting an indoor or outdoor chelonian pool, controlling water depth of the indoor or outdoor chelonian pool to be about 20-25cm, splashing a chelonian feed additive into the whole pool in a ratio that 100-120ml of the chelonian culture feed additive is added into every 1000kg of water, and then putting hatchling chelonians into the pool in a ratio of 8-10 hatchling chelonians per square meter; and after the hatchling chelonians are put into the pool, repeatedly splashing the chelonian culture feed additive once every 8-10 days, and feeding with the uniformly mixed chelonian culture feed additive for 2-3 times every week in a ratio of 5-6ml of the chelonian culture feed additive per kilogram hatchling chelonians. The method has the advantages that chelonian culture water changing frequency can be reduced, both labour and water are saved, the chelonians are also better cultured, and the influence of chelonian culture on the environment also can be reduced.

The invention relates to the field of indoor cleaning equipment, and in particular to a water-saving type indoor floor cleaning trolley. The cleaning trolley comprises a trolley body, a cleaning device and a storage battery; the cleaning trolley is characterized in that the cleaning device is arranged at the bottom of the trolley body and the storage battery is arranged at the tail of the trolley body; the cleaning device is composed of a cleaning cabin, a first filter cabin and a second filter cabin which are sequentially connected; the cleaning cabin comprises a cleaning roller, an auxiliary roller, a first water tank, an hairbrush roller, a mop and a first water conduit; the first filter cabin comprises a second water tank, a first conveying belt, a dust collection cabin and a second water conduit; and the second filter cabin comprises a third water tank, a second conveying belt, a dust collection cabin and a third water conduit. According to the water-saving type indoor floor cleaning trolley provided by the invention, recycling of cleaning water is achieved, so that a water resource is saved; and times of changing water before and after conducting cleaning are reduced, labor is saved and cleaning efficiency is improved.

The invention discloses a net cage ecological algae phase intensive cultivation method for odontobutis obscura. The method comprises the following steps: (1) establishing an intensive cultivation device, arranging a floating bed on a net cage, and planting aquatic vegetables on the floating bed; (2) breeding fish fries outside the net cage; (3) feeding the fries twice every day based on a criterion that the fries are stuffed to prevent residual feeds from polluting water; (4) performing water quality management. In an entire cultivation process, a riverway micro water flow technology is adopted, so that the gonad development of parents can be promoted, a constant incubation temperature is kept for fertilized eggs, hurt or death of the fertilized eggs due to excessively high incubation temperature caused by high density of the fertilized eggs is prevented, and the growth and reproduction of water molds after the death of the fertilized eggs are prevented to avoid influencing the incubation emergence rate of the fertilized eggs. Meanwhile, ecological algae and high-quality riverway water are introduced together into the net cage, so that a food chain is established in the cage, the natural living environment of the odontobutis obscura is simulated, the growth speed of the odontobutis obscura is raised, the yield is increased, and the cultivation quality is improved.

The invention discloses a preparation method for puffed feed for snakeheads. The preparation method comprises the following steps: weighing ingredients according to the formula, mixing the weighed ingredients, crushing the mixed ingredients, and sieving the crushed ingredients 2-3 times according to the needs until the mixed ingredients can pass through a 100-mesh sieve; transferring raw material powder into a modulator, and introducing steam which accounts for 16-18% of raw material powder in mass to modulate; then, introducing the modulated raw material powder into an extruding, puffing and granulating machine for preparing feed granules; and drying the feed granules so as to obtain the finished product of the puffed feed. The puffed feed for snakeheads provided by the invention has excellent index performance, the feed coefficient is low, and snakeheads fed by the feed are healthy, better in constitutional health, and extremely high in survival rate. In addition, the snakehead fed with the puffed feed does not have hepatic pathological changes, and thus, the feed disclosed by the invention has an extremely good liver protecting effect.

The invention discloses a honeycomb glass pumice formula and a production process thereof. The formula comprises the following components in percentage by weight: 89 to 96.5 percent of glass particles, 0.6 to 5.8 percent of zeolite powder, 0.6 to 3 percent of borax, 0.3 to 1.2 percent of heavy calcium carbonate powder and 0.3 to 1.2 percent of light calcium carbonate powder. The production process comprises the following four steps of preparing materials; sintering and puffing at high temperature; cooling; smashing and screening. Accurate furnace internal temperature control is realized by increasing the material mixing accuracy and strictly controlling the conveying belt speed of a sintering furnace, so as to realize uniform porosity of honeycomb glass pumice, and the honeycomb glass pumice which is 0.25 to 1.25 in specific weight, 0.8 to 120 percent in water absorption and 0.8 to 450 mu m in aperture can be prepared. Raw materials are derived from waste white transparent glass, so that environmental pollution is prevented in production and use processes, and utilization of renewable solid waste resources is realized.

The invention discloses a multi-mode ultrasound assisted method for improving dealkalization efficiency of konjak tofu and belongs to the field of processing technologies of foods / agricultural products and by-products thereof. The method comprises the following steps: preparing konjak tofu, stripping and slicing, performing ultrasound assisted dealkalization and determining the pH value of the solution. According to the method disclosed by the invention, the determined pH value in water of the traditional dealkalization method in a short time is nearly close to neutral, while the pH value in water of the ultrasonic dealkalization method is alkaline, which indicates that the ultrasonic dealkalization method has an effect of improving the dealkalization efficiency of konjak tofu. According to report, water needs to be changed for many times and time consumption is high in the traditional water dealkalization, while ultrasonic dealkalization can achieve the effects of reducing the water change frequency, avoiding consumption of lots of dealkalization water and time and reducing the energy consumption; and the method is simple in process, and compared with the traditional konjak tofu dealkalization method, the method disclosed by the invention is excellent in dealkalization effect, low in time consumption, low in energy consumption, convenient to operate, safe, pollution-free and capable of easily realizing industrial production.

The invention discloses a squeezing, cleaning and dewatering mop bucket for a flat-plate mop. The squeezing, cleaning and dewatering mop comprises a squeezing cleaning area and a dewatering area whichare arranged at different positions; a smooth-out squeezing mechanism which is capable of squeezing and sliding relative to a mop head of the flat-plate mop to squeeze wipers on the mop head is arranged in the squeezing cleaning area, and a rotary dewatering mechanism capable of rotating relative to the mop head of the flat-plate mop to dewater the wiper on the mop head is arranged in the watering area. In application of the mop bucket, the mop head of the flat-plate mop is squeezed by the squeezing cleaning area so that dirt on the mop head can be removed while the mop head can be cleaned, after that, the mop head is dewatered under centrifuging action of the dewatering mechanism of the dewatering area; thus, squeezing, cleaning and dewatering are integrated for the flat-plate mop, and the mop bucket is featured by smart design and convenience in use. Besides, most of water on the mop head is removed by squeezing before the process of dewatering, and accordingly time for dewatering is shortened; further, as parts of dirt can be removed by the squeezer, cleanliness of the mop head can be increased.

The invention discloses an aerial robot for cleaning outer walls and glass of a high-rise building. The aerial robot comprises a rack frame body, a machine cap, rotor wings, a water tank, a monitor, acleaning head and an unmanned aerial vehicle electric control device, the machine cap is arranged above the rack frame body, and the rotor wings are uniformly arranged on the periphery of the rack frame body; the monitor and the cleaning head are both arranged on the rack frame body, the water tank is arranged at the lower part of the rack frame body, and the unmanned aerial vehicle electric control device is arranged inside the rack frame body. According to the aerial robot for cleaning the outer walls and the glass of the high-rise building, the size of an unmanned aerial vehicle is large,a lot of water can be borne, the water change frequency can be reduced, and the cleaning efficiency is greatly improved.

The embodiment of the invention discloses a coating paint mist treatment method. The coating paint mist treatment method includes the steps that coating paint mist is brought into Venturi circulatingwater through circulating air, wherein after being rinsed by the Venturi circulating water, the circulating air brings the paint mist into the Venturi circulating water, and the paint mist flows intoa circulating water treatment system along with the circulating water; the circulating water system is a special culture mixed microorganism system, paint mist collected by the circulating water includes organic solvents and organic macromolecular compounds and is metabolized by the microorganism system, after metabolism, part of residual inorganic pigments and a filler are coated by microorganismexcreta to float on the liquid surface of a circulating water storage tank and then are discharged through a slag scraping machine, and part of the residual inorganic pigments and filler deposit at the bottom of the circulating water storage tank and then are discharged through a filtration pump. By adopting the coating paint mist treatment method, discharging of paint slags and wastewater can begreatly reduced; pipeline clogging is reduced; the coating paint mist treatment method is friendly to the environment, and the cost is reduced.

The invention discloses an oyster family larva breeding device and a using method thereof. The oyster family larva breeding device comprises a bait barrel, a water storage barrel, a larva breeding pipe, a breeding pipe support and a pipeline system, wherein the pipeline system comprises an oxygen pipe, a water inlet pipe, a bait pipe and a main drainage pipe; the oxygen pipe is connected with an air pump, and branches are led into the bait barrel, the water storage barrel and the larva breeding pipe; the two ends of the water inlet pipe are led into the water storage barrel and the larva breeding pipe respectively; the two ends of the bait pipe communicate with the bait barrel and the water storage barrel respectively; a water pump I and a water pump II are arranged in the bait barrel andthe water storage barrel respectively; the water inlet pipe and the bait pipe are connected with the water pump II and the water pump I respectively; the larva breeding pipe is erected on the breedingpipe support, the upper portion of the larva breeding pipe is connected with a branch drainage pipe, and a screen pipe is arranged in the larva breeding pipe; the branch drainage pipe is connected with the main drainage pipe; and the main drainage pipe is led into the water storage barrel. The oyster family larva breeding device is simple and practical, oyster larvae can be prevented from beingmixed, water changing and bait casting are facilitated, workloads are reduced, and the breeding efficiency and the quality are improved.

The invention relates to an aquaculture water quality regulation system. The system comprises a water quality monitoring device and a microbial culture device, the microbial culture device comprises ashell, the shell comprises an upper shell and a lower shell, a lifting pump, a far infrared bio logical activation device and two symmetric chambers are arranged in the upper shell, a culture tank isarranged in the lower shell, a composite ore bio-filler and an aeration device are arranged in the culture tank, and a water pump is also arranged in the water quality monitoring device. Culture water is pumped into the microbial culture device and is purified, and the purified culture water and culture water carrying a large amount of beneficial microorganisms are discharged into the culture pond, so the water purification area is expanded; and circulating purification during culture keeps the water clean, reduces the water changing frequency, protects the natural environment, improves the survival rate of aquatic products, and increase economic benefits.

The invention discloses a multifunctional aquarium filtration purification device. The multifunctional aquarium filtration purification device comprises a box body, wherein a first-stage cabin body and a second-stage cabin body are arranged in the box body; the first-stage cabin body is higher than the second-stage cabin body, and a sealing cover is arranged at the upper end of the first-stage cabin body; one side of the box body, corresponding to the middle part of the first-stage cabin body, is connected with a water inlet pipe; a filtration basket filled with a filter material or a helicalseparator is inserted into the first-stage cabin body; an overflow channel is formed between the first-stage cabin body and the second-stage cabin body in the box body, and a pump room is arranged below the overflow channel; the two ends of the overflow channel are respectively communicated with the first-stage cabin body and the pump room; a water pump is arranged in the pump room; one side of the pump room is provided with a drain hole communicated with a water outlet of the water pump; the upper end of the drain hole is positioned in the second-stage cabin body; the filter material is press-mounted in the second-stage cabin body through a bottom screen; and one side of the box body, corresponding to the upper end of the second-stage cabin body, is provided with a waterfall water outlet.The device can effectively filter out suspended solids in water, keep water body stable, maintain aquarium environment, reduce the water changing times for feeding aquarium fishes, and improve the physique and health degree of the aquarium fishes.

The invention discloses a biochemical fish tank without filter cotton. A biochemical chamber is arranged on a tank body, the interior of the biochemical chamber is provided with a plurality of ceramicrods or ceramic rings, a submersible pump is arranged under one end of the biochemical chamber and immersed under a liquid level of the tank body, a collector is arranged below a water inlet of the submersible pump, a water outlet of the submersible pump is connected with a water inlet of the biochemical chamber and one end of a water outlet pipe, the front end of the water inlet of the biochemical chamber is provided with an air inlet throttle gate, and the other end of the biochemical chamber is provided with a baffle and a water outlet of the biochemical chamber; and the water outlet of the biochemical chamber is connected with a straight pipe immersed under the liquid level, and the water outlet pipe passes through the interior of the biochemical chamber and leads to the bottom of thetank body along the side wall of the tank body. The fish tank disclosed by the invention has a simple structure, and is convenient to operate; sundries in water can be collected without the filter cotton, a motor has low power and low energy consumption, so that water resources are saved, time and labor are saved, and no new pollution is generated in the collection process; and the fish tank hashigh purification efficiency, a good effect, low costs and broad application prospects, and facilitates promotion and applications.

The invention discloses a cleaning and drying device for refrigeration accessories, which includes a cleaning tank, a cold air device, an electric heating device, and an oil-water separator. The cleaning tank includes a tank body, a chute, and a cylinder. The air cylinder, the cooling device includes a first support and a cooling fan, the first support is perpendicular to the upper end surface of the tank, and is connected with the piston rod of the cylinder on the same side, and a number of first rollers are installed at the lower end; the electric heating device includes a second support and a hot air blower, The second support is perpendicular to the upper end surface of the tank body, and is connected with the piston rod of the cylinder on the same side, and a plurality of second rollers are installed at the lower end; the oil-water separator is connected with the tank body through a degreasing water pipe. The invention integrates cleaning and drying into one, the structural design is reasonable and compact, and the tank body is connected with the oil-water separator, which can reduce the number of water changes in the cleaning process, and the setting of circulating pumps and circulating pipelines ensures water quality and facilitates cleaning of the surface of refrigeration accessories The adhering volatile oil and the setting of the sewage pipe are convenient to improve the cleaning efficiency.