116results about How to "Improve sewage discharge capacity" patented technology

The invention relates to a spray tower with the function of cleaning the packing layer, which includes a body, a water pipe, a packing layer and a water pump, and also includes a spraying mechanism, a cleaning mechanism and a sewage discharge mechanism. The cleaning mechanism includes a first support rod and a knocking block , a first transmission rod, a second transmission rod, a first drive assembly and two springs, the blowdown mechanism includes a second drive assembly, a second support rod, a moving block, a connecting rod, a scraper and a blowdown assembly, which has In the spray tower with packing layer cleaning function, the packing layer is beaten by the cleaning mechanism, and the dirt in the packing layer is cleaned out under the action of inertia, and the packing layer is sprayed by the spraying mechanism, thus realizing the cleaning of the packing layer. The cleaning of the packing layer can be kept clean, thereby improving the purification effect of the spray tower. Not only that, the sludge deposited in the spray tower is cleaned through the sewage discharge mechanism, which not only improves the efficiency of cleaning sludge in the spray tower, It also prevents sludge from clogging the sewage outlet.

The invention provides a filter and a water treatment system, and mainly relates to the field of agricultural irrigation. The filter comprises a shell and a filtering assembly, wherein the filtering assembly is arranged in the shell, a first cavity is defined by the filtering assembly, and a second cavity is formed between the filtering assembly and the shell; the filtering assembly is connected rotationally with the shell; a water inlet, a water outlet and a sewage outlet are formed in the shell, the water inlet and the sewage outlet are communicated with the first cavity respectively, and the water outlet is communicated with the second cavity. The filter increases the concentration of dirt in the sewage discharged from the filter and saves the sewage discharging time. The water treatment system is beneficial to the improvement of the sewage discharging efficiency in the water filtration process.

The invention discloses a 3D super-swirling siphon closestool. The 3D super-swirling siphon closestool comprises a closestool main body, wherein the closestool main body comprises a closestool tank, a siphon pipe, a flushing water passage and a jetting water passage; a flushing hole is formed in the top of the closestool tank; a jet orifice and a drain outlet are formed in the bottom of the closestool tank; the flushing hole is communicated with the flushing water passage; the jet orifice is communicated with the jetting water passage; the drain outlet is communicated with the siphon pipe; an angle is formed between the hole surface of the flushing hole and the side surface of the closestool tank, so that water jetted from the flushing hole does circumferential movement around the closestool tank to form a first swirl; the jet orifice is formed in the side of the closestool tank, water jetted from the jet orifice does circumferential movement around the closestool tank to form a second swirl; the second swirl and the first swirl have the same swirling direction. The 3D super-swirling siphon closestool can achieve a double-swirl water flow, speeds up siphon, speeds up drainage, sufficiently reduces noises and has significant water-saving and draining effects.

The invention discloses a plastic pedestal pan matrix and a manufacturing method thereof. According to the technical scheme, a injection molding pedestal pan base is adhered to and welded with a pedestal pan matrix upper cover to integrally form the pedestal pan matrix. The weight of the pedestal pan matrix is not more than 5 kilos while strength and rigidity of the pedestal pan matrix is guaranteed, the pedestal pan matrix is less prone to being broken, and transportation and mounting costs are lowered greatly. Compared with traditional ceramic pedestal pan, the plastic pedestal pan matrix is small in longitudinal size and fast in flushing, and the mounting positions of the pedestal pan can be changed flexibly.

This invention provides a filter method for light substances under impetus, such as smoke, smog poison substances, which is characterized by the following: under the impetus, the high speed rotary shooting needle to shot down the smoke and powder; then under the centrifugal force, damping the smokes to the outer shell inner wall and flowing to the drainage under gravity action.

The invention discloses a water-saving toilet with a multi-hole configuration, which belongs to the sanitary ware used in people's daily life. It is to design the inner basin of the toilet as a crooked funnel-shaped toilet bowl, and raise the sewage outlet. The rear end of the sewage outlet is connected with a porous connector, and the other end of the porous connector is provided with a rear sewage outlet and connected with a rear connecting pipe. The rear section of the integrated board is designed to bulge to form a boss, and a hole is opened as a connecting space for the straight-down connecting pipe of the multi-hole connector and the straight-down sewage pipe. This product can be switched to the rear sewage outlet or straight-down sewage outlet according to the actual needs of being assembled in different layouts of sewage pipes, and the connection pipe position can be adjusted freely. sewer pipe assembly.

A system of controlling a flush toilet (20), which includes a first flushing channel (21) and a second flushing channel (22), and the system contains: a depressurizing valve (31) including an inlet (311) connecting with an inlet pipe fitting (314), a first outlet (312), and a second outlet (313); a first water-supply pipe fitting (32) employed to supply water from the first outlet (312) of the depressurizing valve (31) toward the first flushing channel (21) of the flush toilet (20); a second water-supply pipe fitting (33) applied to supply the water from the second outlet (313) of the depressurizing valve (31) toward the second flushing channel (22) of the flush toilet (20); a first solenoid valve (34) controlled to start and stop the first water-supply pipe fitting (32); a second solenoid valve (35) controlled to start and stop the second water-supply pipe fitting (33); a water pressure sensor (36) used to sense a water pressure in the depressurizing valve (31) and to transmit a pressure signal (P); a control unit (37) served to receive a flushing signal (W) started by a user and the pressure signal (P) from the water pressure sensor (36), such that after receiving the flushing signal (W), a starting and closing sequence and starting times of the first solenoid valve (34) and the second solenoid valve (35) are controlled based on the pressure signal (P).

The invention discloses a negative pressure type inhaling water-saving pedestal pan. The negative pressure type inhaling water-saving pedestal pan comprises a pedestal pan body, a negative pressure bottle, a sewage draining pipe, and a U-shaped pipe, wherein the bottle opening of the negative pressure bottle is downward and is vertically placed; a sewage draining exit in the pedestal pan body is connected with the U-shaped pipe through a pipeline; and the outlet at one end, far from the sewage draining exit, of the U-shaped pipe is connected with the sewage draining pipe in a sealing manner, and the top surface of the sewage draining pipe in the connecting place is connected with the bottle opening of the negative pressure bottle in a sealing manner. According to the negative pressure type inhaling water-saving pedestal pan, the negative pressure bottle is additionally arranged on the top of the U-shaped pipeline, so that when liquid passes through the inverted bottle opening, the intensity of pressure at the bottle opening is reduced, a negative pressure is formed inside and outside the bottle, and atmosphere pressure forces a part of liquid to enter the negative pressure bottle to accelerate flowing speed in the sewage draining pipe; and due to existence of solid excrement, air enters the negative pressure bottle from time to time to promote a part of the liquid to flow out of the bottle so as to form "inhale-outflow" state circulation, so that the sewage draining capability is strengthened, and a more water-saving function and pipeline blocking prevention are achieved.

The invention relates to an intelligent anti-silting integrated pump station and a use method thereof. The intelligent anti-silting integrated pump station comprises a pump station barrel body and a submersible sewage pump; the submersible sewage pump is arranged in the pump station barrel body, the pump station barrel body comprises a pump station barrel wall and a pump station barrel bottom, andthe upper part of the pump station barrel wall is provided with a pump station water inlet pipe; the suction port of the submersible sewage pump is faced to the pump station barrel bottom of the pumpstation barrel body, and the liquid outlet of the submersible sewage pump is connected with a pressure pipe in a penetrating mode; the pressure pipe is connected with a hard pipe in a penetrating mode; the inlet end of the hard pipe is in communication with the side wall of the pressure pipe, and the outlet end of the hard pipe extends to the pump station barrel bottom in the pump station barrelbody. According to the intelligent anti-silting integrated pump station, the structure is reasonable, through the intelligent anti-silting integrated pump station, compared with a traditional anti-silting device, the intelligent anti-silting integrated pump station mainly aims to clean bottom silting parts in the integrated pump station, solves the problem of cleaning the bottom silting parts in the pump station barrel body, and achieves purposes of simple installation, convenient operation, and sewage discharge efficiency improved.

The invention particularly relates to a full-automatic water-saving buttocks-splash-proof squatting and sitting dual-purpose toilet WC pan which comprises a water tank, a urinal, a flushing pipeline and a blowdown pipeline. The rear of the water tank is directly communicated with a running water pipe, the urinal is a squat toilet urinal, the flushing pipeline comprises a flushing water ring, a flushing water pipe and a spraying water pipe, and the blowdown pipeline comprises an S-shaped blowdown pipe. The urinal is provided with a cushion, a casing is arranged around the urinal, two side portions of the casing serve as pedals, the front end of the cushion is supported on a front baffle of the urinal, the rear end of the cushion is hinged to the casing at the rear of the urinal through a rotating shaft, a bottom wall of the urinal is inclined from front to rear downwards, a blowdown opening is arranged at the rear end of the urinal to be communicated with the S-shaped blowdown pipe, the flushing water ring surrounds the urinal, flushing water holes are evenly formed in the upper portion of the flushing water ring, and the flushing water pipe and the spraying water pipe are led out of the water tank, the other end of the flushing water pipe is communicated with the flushing water ring, the other end of the spraying water pipe is respectively communicated with a first spraying port and a second spraying port, a check valve is arranged at the position of a blowdown outlet of the S-shaped blowdown pipe, and an infrared sensor control switch is installed between the flushing water pipe and the spraying water pipe. The full-automatic water-saving buttocks-splash-proof squatting and sitting dual-purpose toilet WC pan is wide in applied range, integrates squatting and sitting, conforms to the Chinese's use characteristics, performs flushing automatically, is excellent in performance, saves water, performs flushing cleanly and cannot blocked easily.

The invention discloses a braking energy storage device for a pure electric bus and a working method thereof. The braking energy storage device for the pure electric bus comprises an air compressor, acopper coil tube, a condenser, a dryer, a four loop, a foot operated brake valve, a hand brake valve, a regenerated air reservoir, a front braking air reservoir, an auxiliary air reservoir, a hand braking air reservoir, a rear braking air reservoir and a controller; the air compressor, the copper coil tube, the condenser, the dryer and the regenerated air reservoir are connected with each other in sequence through copper pipes and mutually form a main air source pipeline; the four loop, the front braking air reservoir, the auxiliary air reservoir, the hand braking air reservoir, the rear braking air reservoir, the foot operated brake valve, the hand brake valve and the controller are connected with each other through nylon pipes to form a braking energy supply assembly; and according to the working method, condensation and sewage draining of the pipeline are realized in an electric controlled and temperature controlled manner; and the controller controls the air compressor to start and stop. According to the braking energy storage device for the pure electric bus and the working method thereof, the working efficiency of a braking system is enhanced on the basis of guaranteeing thesafety and reliability of the whole braking system, and the energy utilization efficiency is enhanced.

The invention relates to a sewage draining and anti-blocking bridge which comprises a body of a bridge, a guardrail, an intermediate isolation fence and a sewage draining channel; the sewage draining channel is arranged on the inner side of the guardrail; the sewage draining channel comprises a sewage draining layer, a supporting column and an adjustment column, the sewage draining layer is arranged at the channel bottom and the channel wall of the sewage draining channel in a covering mode; the lower ends of the supporting column and the adjustment column are fixed to the channel bottom of the sewage draining channel, and the upper ends of the supporting column and the adjustment column are fixedly connected with the sewage draining layer; the adjustment column comprise a telescopic cylinder, and a tension spring is disposed between the upper cylinder end and lower cylinder end of the telescopic cylinder, and the telescopic cylinder is internally filled with a water absorbing expansion material; and a seepage hole is formed in the portion where the sewage draining layer is connected to the adjustment column, and the seepage hole communicates the outside air with the telescopic cylinder; and a volatilization hole is formed in the cylinder body of the telescopic cylinder. The sewage draining and anti-blocking bridge is novel in structure, the sewage discharge efficiency of the sewage draining channel can be effectively improved, and the problems of sewage flow guiding, discharge and blockage are solved.

The invention relates to an anti-plug automatic blowdown recharge device used for water-source heat pump collection well, which includes: well tube and recharge pipe controlled by return valve and connected to the water-source heat pump and assembled in the well tube. And the technical points includes that: automatic control powerful blowdown pump is arranged at bottom of the water return level in the well tube, and the pump body of the blowdown pump is integrated with double-channel non-plug impeller comprised by main, vice impellers, and terminal fixed stirrer of motor shaft equipped with the main, vice impellers, and the stirrer is arranged in channel under a clapboard in base water inlet cavity of the blowdown pump, and outlet end of the pump body is connected to sedimentation pond outside the well tube via muddy water straw. The invention can fully resolve the problem of well tube plug existing in current technology, and can reduce the amount of recharge well and desterilize disabled well as well as save operation cost and maintain cost, prolong the service life of the collection well.

The invention discloses separation and purification equipment and a method. The separation and purification equipment comprises a mixed liquid drum, a purified liquid drum and a collection drum. The upper portion of the mixed liquid drum is open while the inner wall is fittingly provided with a filter plate, the filter plate is provided with a plurality of inverted conical supporting holes in which sinking balls are fittingly mounted, and the filter plate, except for the area of the inverted conical supporting holes, is provided with a plurality of filter holes. Side walls of the inverted conical supporting holes are provided with a plurality of filter holes as well. An extending portion of the mixed liquid drum is communicated with the purified liquid drum. After liquid injection, a hermetic air chamber is formed between the extending portion and the purified liquid drum, and the communication portion is provided with a sewage outlet which is fittingly connected with a plug. The collection drum externally sleeves the mixed liquid drum, the filter plate is fittingly connected with a rotating shaft, an ejector plate is arranged on the lower portion of the rotating shaft, and the mixed liquid drum is connected with a backflush valve. According to a communicator principle, filtration of impurities in liquid and washing of filter residues are realized by virtue of the pressure difference.

The invention discloses a semi-factory pond internal circulation culture system, and belongs to the technical field of aquaculture. The semi-factory pond internal circulation culture system comprisesa culture unit, a pollution discharge unit and a water purification unit, and is characterized in that the water outlet of the culture unit communicates with the water inlet of the pollution dischargeunit; the water outlet of the pollution discharge unit communicates with the water inlet of the water purification unit, and the water outlet of the water purification unit communicates with the water inlet of the culture unit; the culture unit includes a water tank, an aeration oxygen-increasing device, a submerged air-lifting device, a first-stage auxiliary oxygen-increasing device, a second-stage auxiliary oxygen-increasing device, a dead water prevention device and a material-blocking device; the pollution discharge unit comprises a primary pollution discharge device and a secondary pollution discharge device; and the water purification unit comprises a water purification unit body, a water pushing device, a microporous oxygen-increasing machine and aquatic plants. The culture systemdisclosed by the invention can effectively improve the dissolved oxygen content in inlet water, enhance the water pushing effect, increase the water exchange amount, increase the dissolved oxygen level, reduce the water body pollution, improve the feed utilization rate, and promote rapid growth of fish.

The invention relates to an integrated pump station combined grille desilting device and a use method thereof. The integrated pump station combined grille desilting device comprises a pump station cylinder and a submersible sewage pump arranged in the pump station cylinder, a water inlet pipe penetrates through the pump station cylinder, and one end, arranged in the pump station cylinder, of the water inlet pipe is connected with a water inlet filter screen and a trash holding grille; a second grille is arranged in the pump station cylinder, a plurality of water spraying structure branch pipesare arranged in the pump station cylinder below the second grille, the water spraying structure branch pipes are communicated with a water outlet pipeline connected with the submersible sewage pump,openings of the water spraying structure branch pipes face downwards, and control valves are arranged on the water spraying structure branch pipes; a sediment density detector with an alarm is installed at the bottom in the pump station cylinder and connected with the control valves on the water spraying structure branch pipes. Compared with a traditional desilting device, the device focuses on cleaning impurities in incoming flow sewage and impurities deposited at the bottom of a pump station cylinder, and the problem that the impurities in the cylinder cannot be cleaned up is solved.

The invention relates to the technical field of pedestal pans, and discloses a water-saving pedestal pan. The water-saving pedestal pan comprises a pedestal pan body, the pedestal pan body is provided with a water storage tank, a pedestal pan pool and an auxiliary water flushing channel, the water storage tank is used for providing a water source for the pedestal pan, the pedestal pan pool is provided with a basin-shaped dirt receiving face structure, a first brushing water channel and a second brushing water channel are arranged on the edge of the pedestal pan pool, the first brushing water channel is correspondingly provided with a first small hidden water tank, and the second brushing water channel is correspondingly provided with a second small hidden water tank. Due to the fact that the small hidden water tanks are additionally arranged, brushing water cannot flow back, and the surface of the pedestal pan pool is brushed cleanly and fast. The water flushing process can achieve the siphon effect instantly, then supplemented water later cannot be directly wasted and is stored in the hidden water tanks (about one liter), and the water source is provided for secondary water flushing.

The invention provides an environment-friendly three-dimensional cotton for furniture and a preparation method thereof. The preparation method includes the following steps: preparing an upper fiber raw material and a lower fiber raw material; opening the prepared upper fiber raw material and the prepared lower fiber raw material; carding the opened upper fiber raw material and the opened lower fiber raw material into net-shaped structures; stacking up the upper fiber net and the lower fiber net; connecting the stacked upper fiber net and lower fiber net together through needling; and performing hot-pressing forming on the upper surface and the lower surface of the integrated upper fiber net and lower fiber net after needling, wherein the upper fibers form a fluffy structure, and the lower fibers form a plate-shaped structure. The environment-friendly three-dimensional cotton prepared by the method is provided. The environment-friendly three-dimensional cotton can be applied on the furniture instead of polymeric sponge and clamping plates, can avoid any adhesive, and is environment-friendly.

A pipe branch piece (1) for a downpipe in which sewage in the form of a sewage layer can be guided on a wall in a fall direction (F) comprises an upper downpipe section, a diverting section, and a lower downpipe section, as well as at least one supply pipe section, wherein the diverting section comprises at least one diverting region (8) and a flow region (12) having a wall (11). The diverting region (8) comprises a diverting surface (10), running along a flow curve or flow line (M) and of curved configuration, for the bundling of the sewage as a jet (S), which flow curve or flow line (M) runs at a first angle (Belta) with respect to the fall direction (F) and at a second angle (Alfa) with respect to a plane (E) extending through the fall direction (F), wherein, as a result of the two angles (Belta,Alfa), the curved diverting surface, with its flow curve or flow line (M), is directed substantially tangentially to the wall (11) of the flow region (12).

The invention relates to a water-pollutant separation device. The water-pollutant separation device comprises a box body, as well as a water inlet pipe, a water outlet pipe and a pollutant discharge pipe which are respectively communicated with the separation box body, wherein a separation structure is arranged in an inner cavity of the box body, the separation structure comprises a plurality of spoilers, one side of each spoiler is fixed on the side wall of the box body, each spoiler is slightly smaller than the box body, a water inlet is arranged below the separation structure, the spoilers are sequentially mounted on the periphery of the inner side wall of the box body from the water inlet from bottom to top, and a plurality of open holes or slots for producing slow flow to disturb water flow are formed in each spoiler. By adopting the technical scheme, the preferential water-pollutant separation device is additionally arranged before filtration of a fish tank, thus most of pollutants in water can be easily separated and discharged, the accumulation of the pollutants relative to the filter material can be greatly reduced, and the water quality and stability can be improved.

The invention discloses a fan coil capable of being cleaned and disinfected without disassembling. The fan coil capable of being cleaned and disinfected without disassembling comprises an air return box, a coil box body, a fan and a condensate water disc, wherein a coil is arranged in the coil box body; the fan comprises a motor, impellers, volutes and a fan support; the volutes are fixed on the fan support; the air outlet of each volute faces to the coil and is located on the lower part of the volute; the fan support is connected with the air return box through a connector; the upper part of the fan support is fixedly provided with a cleaning and disinfecting main pipeline; external branch pipelines and internal branch pipelines are arranged on the cleaning and infecting main pipeline; the external branch pipelines are distributed on the left and right sides of each volute, and the water outlets of the external branch pipelines are bent to the impellers; the internal branch pipelines penetrate through the fan support; and the water outlets of the internal branch pipelines face to the coil. The invention further provides an automatic cleaning and disinfecting method for the fan coil. By adopting the fan coil and the automatic cleaning and disinfecting method, disassembling-free cleaning and disinfecting of the fan coil are realized; the positions of the air outlets of the volutes are improved; cleaning is clean and thorough; and the problems that water is accumulated or leaked in current volutes and water enters a bearing are solved.

The invention discloses a seawater circulation culture system with sewage disposal facilities; the seawater circulation culture system comprises a culture pond, a disposal port, a disposal pipe; the bottom of the culture pond is provided with the disposal port connected with the disposal pipe; the system also comprises a sewage discharge facility and a circulation water discharge facility; the disposal pipe is respectively connected with the sewage discharge facility and the circulation water discharge facility through a tee joint; the sewage discharge facility is connected with a sewage processing facility comprising a sewage settling pond and a biological cleaning pond connected in sequence; the system gathers sewage in one recovery pond, and discharges culture water into another recovery pond, so sewage can be conveniently recovered, utilized and processed in a bio-safety way, thus preventing pond sewage from polluting the culture water for a second time; the system is low in cost, simple in operation, easy to promote, high in efficiency, and can provide important meanings for protecting sea environment and aquatic product safety production.

The invention discloses a seawater circulation culture system with circulation water treatment; the seawater circulation culture system comprises a culture pond, a sewage discharge port, a sewage discharge pipe; the bottom of the culture pond is provided with the sewage discharge port connected with the sewage discharge pipe; the system also comprises a sewage discharge mechanism and a circulation water discharge mechanism; the sewage discharge pipe is connected with the sewage discharge mechanism and the circulation water discharge mechanism through a tee joint; the circulation water discharge mechanism is connected with a circulation water processing mechanism comprising an oxidation water reservoir, a primary biological cleaning pond and a micro-ecology cleaning pond; tail water is discharged into the oxidation water reservoir through the circulation water discharge mechanism, fully oxidized and settled, and enters the primary biological cleaning pond; the water is cleaned by the biological cleaning pond and enters the micro-ecology cleaning pond for micro-ecology treatment; the water will be reused after water quality reaches the standards, thus realizing culture water full circulation usage. The seawater circulation culture system is low in cost, simple in operation, easy to promote, high in efficiency, and can provide important meanings for protecting sea environment and aquatic product safety production.

The invention relates to a pump for smashing sewages, comprising a transmission shaft, a smasher and pump body. A long sleeve is arranged outside the transmission shaft. A connection base connected with a motor is fixed at the top of the long sleeve, and an upper cover connected with the pump body is fixed at the bottom of the long sleeve. The smasher comprises an impeller connected with the lower end of the transmission shaft through a shaft sleeve, the impeller is provided with a plurality of approximately evolvent-shaped circular arc-shaped vanes. Blades are arranged at the end of the lower end of the vanes. The bottom of the pump body is provided with a bottom cover, and the bottom cover is provided with a water inlet. The pump for smashing sewages is characterized in that blades are arranged at the upper end of the vanes. The smasher further comprises an inner plate fixed at the bottom of the upper cover and sleeved on the impeller. Circular arc-shaped upper cutters corresponding to the vanes are arranged on the inner plate. Circular arc-shaped lower cutters corresponding to the vanes are arranged at the water inlet at the upper edge of the bottom cover. The invention has strong smashing strength for sewages, and high efficiency of discharging sewages; in addition, the phenomena that sewages slip and are piled up at the cutting position, and the like are avoided.

The invention relates to a high-density environment-friendly aquaculture net cage and belongs to the aquaculture field. The high-density environment-friendly aquaculture net cage comprises a rectangular net cage body with an upward opening; the left side wall and the right side wall of the net cage body are provided with mesh openings respectively; the right side of the net cage body is provided with a bubble generator and a bubble reflection plate; one end of the bubble generator is perpendicularly connected with the bottom of the right side wall of the net cage body; one end of the bubble reflection plate is connected with the top of the right side wall of the net cage body; the other end of the bubble reflection plate is connected with the other end of the bubble generator; floats which are connected with the front side wall and the rear side wall respectively are horizontally and symmetrically arranged outside the front side wall and the rear side wall of the net cage body respectively; the left end of the bottom of the net cage body is provided with a drainage opening; the drainage opening is connected with a drainage pipe which is arranged outside the net cage body; an air lift device is arranged in the drainage pipe. According to the high-density environment-friendly aquaculture net cage, the structure is simple, the installation is convenient, the pollution to a water body is small, and the high-density environment-friendly aquaculture net cage can be applied to the water source aquaculture.

The invention discloses a novel pedestal pan which comprises a seat body, an air pump, a vent valve, a water inlet valve, a drain valve, an overflow valve and a controller. The seat body is provided with a sealed water tank. A drainage pipeline and a siphon pipeline, two ends of the drainage pipeline respectively communicate with the sealed water tank and the siphon pipeline. An exhaust end of the air pump communicates with the sealed water tank and is used for inflating the sealed water tank. The air inlet end of the vent valve communicates with the sealed water tank and is used for discharging air in the sealed water tank. The water inlet end of the water inlet valve communicates with a water source, and the water outlet end of the water inlet valve communicates with the sealed water tank for controlling water inflow of the sealed water tank. A drainage valve is arranged at the communication part of the sealed water tank and the drainage pipeline and used for controlling drainage of the sealed water tank; the overflow valve is arranged in the sealed water tank. A controller is electrically connected with the air pump, the vent valve, the water inlet valve and the drain valve and used for controlling the working states of the air pump, the vent valve, the water inlet valve and the drain valve. The sewage discharge capacity of the pedestal pan can be improved, and the water consumption can be reduced.

The invention discloses a drain device, a siphon toilet bowl and a flushing method thereof. The drain device comprises a base and a drain device body; the drain device body is matched with the base to realize draining, and the base is provided with water channels including a first water channel and a second water channel which are separated from each other. The siphon toilet bowl comprises a toilet bowl body that is provided with a spray channel, a wash-ring channel and a siphon pipe; at least, the spray channel and the wash-ring channel of the toilet bowl body are not communicated with each other during flushing of the siphon toilet bowl. The flushing method of the siphon toilet bowl includes: by the aid of the drain device, dividing water in a water tank into two water flows, including the one flowing to the spray channel of the toilet bowl body and the other one flowing to the wash-ring channel of the toilet bowl body, in the siphon toilet bowl body. The water drained from the water tank is divided into two channels without interference, so that loss of water potential energy and kinetic energy can be decreased, flushing effect can be improved, water usage can be reduced, and water is saved.

The invention discloses a top straight water flushing squatting pan. The top straight water flushing squatting pan comprises a squatting pan body, a squatting bedpan, a flushing channel and a drainage channel, wherein the squatting bedpan is arranged on the squatting pan body; a water seal is arranged at the bottom of the squatting bedpan; the water seal is communicated with the drainage channel. The top straight water flushing squatting pan is characterized in that the top of the squatting pan body is provided with a top water inlet, wherein the top water inlet is communicated with the flushing channel and externally connected with a water inlet pipe. The top straight water flushing squatting pan is simple in structure, convenient to install and maintain, environment friendly and energy-saving; and a good popularizing value is available.

The invention discloses a high level pond culture system with separating pollution discharge; the high level pond culture system comprises a culture pond, a discharge port, and a discharge pipe; the bottom of the culture pond is provided with the discharge port connected with the discharge pipe; the system also comprises a discharge increasing shield, an anti-escape shield, a dirt discharge facility and a circulation water discharge facility; the discharge pipe is respectively connected with the dirt discharge facility and the circulation water discharge facility through a tee joint; the discharge increasing shield and the anti-escape shield are arranged above the discharge port; the system singly discharges the sewage into a recover pond, and discharges culture water to another recover pond, so the sewage can be recovered, utilized and processed in s harmless mode, thus preventing secondary pollution of the pond sewage on the culture water; the high level pond culture system is low in cost, simple in operation, easy to promote, high in efficiency, and can provide important meaning for protecting sea environment and aquatic product safety production.

The invention relates to a culture pool exclusively used for the culture of Penaeusvannamei, including the pool body and the oxygen-increasing equipment which comprises a motor, a blower, a gas supply pipe and a plurality of nano oxygen-increasing pipes. The motor is driven by a belt to drive the blower. The blower is connected with a plurality of nano oxygen -increasing pipes through a gas supply pipe. A plurality of nano oxygen-increasing pipes is horizontally laid in the pool body in parallel at equal interval of distance, 10-15cm from the bottom of the tank. The motor is a motor with a power eaqual to 10W or above 10 W. The diameter of the air supply pipe is larger than or equal to 11 cm. The total length of the plurality of nano-oxygen-increasing tubes is above or equal to the floor area of the pool body. The invention provides a culture pond exclusive for the cultivation of Penaeusvannamei, which is better adapt to the growth demands of Penaeusvannamei: the survival rate of Penaeusvannamei increased to be above 90%, the yield reaching more than 5 kilograms of shrimp per cubic of water body, the incidence of the shrimp being greatly reduced, and the culture cost being low.