61results about How to "Good water distribution effect" patented technology

The invention relates to a spiral symmetrical flow anaerobic reactor, which comprises a water distribution region, a reaction region and a three-phase separation region, wherein the water distribution region, the reaction region and the three-phase separation region are respectively arranged on a reactor from bottom to top, the water distribution region comprises a bottom plate and a lower post body, the upper surface of the bottom plate is connected with the lower post body, the reaction region comprises a middle post body, the middle post body comprises a spiral flow reaction region and a free airspace region, a back flow pipe is arranged in the free airspace region, and a case of the three-phase separation region is respectively provided with a cone body, an upper post body and a coverplate from bottom to top. The spiral symmetrical flow anaerobic reactor has the advantages that the water distribution is uniform, the blockage is not easy to occur, the spiral symmetrical flow anaerobic reactor trends to the flat push flow state, the treatment efficiency is high, the liquid solid mass transfer effect is good, the organic load impact resistance capability is high, the intermediate product suppression is reduced, and the particle sludge and the recycled alkalinity can be effectively maintained.

The invention provides a water distribution device in a water cold accumulation system and belongs to the field of energy accumulation. The water cold accumulation system comprises a cold accumulation tank. The water distribution device comprises a trapezoid shell with a cavity inside. The top end of the shell is a water inlet end. A plurality of first water holes are formed in the bottom end of the shell. The bottom end of the shell is communicated with the cold accumulation tank. A trapezoid sponge matched with the shell is disposed in the shell. The bottom end of the sponge is abutted against the bottom end of the shell. A circular water guide plate is disposed above the sponge and fixedly connected to the inner wall of the shell. A plurality of second water holes are formed in the water guide plate. A buffer device is disposed above the water guide plate. The buffer device comprises a buffer plate. The buffer plate is located right below the port of the water inlet end of the shell and provided with a plurality of third water holes. A gap is reserved between the buffer plate and the inner wall of the shell. The buffer plate is fixedly connected in the shell. The water distribution device is good in water distribution effect, ingenious in structural design and even and slow in water discharge.

The invention discloses a secondary sedimentation tank system capable of improving organic wastewater effluent quality. The secondary sedimentation tank system comprises a coagulating tank, a secondary sedimentation tank and an effluent water collection tank which are sequentially connected in the water flowing direction. The secondary sedimentation tank system is characterized in that the secondary sedimentation tank is a horizontal sedimentation tank, the wall on the head of the secondary sedimentation tank is provided with a mud discharge groove with a water retaining dam in the width direction of the tank, the wall on the tail of the secondary sedimentation tank is provided with an effluent weir, the bottom of the secondary sedimentation tank is fully provided with a plurality of mud collection buckets which are arranged in rows in the width direction and length direction of the tank, each mud collection bucket is provided with an independent mud discharge pipe, a walking type mud scraper is arranged above the tank and used for scraping float mud on the water surface to the mud discharge groove so as to be away from the effluent weir, and therefore effluent quality is improved. The invention further discloses a method for processing organic wastewater through the secondary sedimentation tank system.

The invention relates to a wet type water film electrode electric-coagulation device, which comprises a shell, a grounding electrode, a high-voltage electrode and a high-voltage alternating-current power supply, wherein the high-voltage electrode is composed of a polar plate and a high-voltage prick; the wet type water film electrode electric-coagulation device is characterized in that the grounding electrode comprises a grounding polar plate and a grounding polar plate water distributor; the grounding polar plate water distributor comprises a water supply pipe, an inclined liquid guide plate, a seamless steel tube, a grounding polar plate fixing groove, a support plate and a bottom support base; the water supply pipe is divided into two sections; one ends of the two sections of water supply pipe are connected through the seamless steel pipe to form an integer, wherein one end of one section of water supply pipe is connected with a water pump; the water supply pipe is above the inclined liquid guide plate and fixedly connected with the inclined liquid guide plate; a circular hole is formed in the water supply pipe next to the inclined liquid guide plate; the inner side of the inclined liquid guide plate is fixedly connected with the top of the support plate; the inclination angle of the inclined liquid guide plate is 8-15 DEG; and a layer of water absorption material is flatly paved on the upper surface of the inclined liquid guide plate.

The invention discloses a mixed bed structure of a water treatment system. The mixed bed structure comprises a cylindrical body, a water inlet formed in the upper part of the cylindrical body and a water outlet formed in the lower part of the cylindrical body, wherein anion exchange resin and cation exchange resin are arranged inside the cylindrical body, and the cylindrical body is further provided with charging holes and discharging holes; and an upper discharging device, a lower discharging device and a middle discharging device are further arranged inside the cylindrical body. The mixed bed structure further comprises a water distribution device which comprises a hanging basket, a pore plate and water caps, wherein the hanging basket is arranged below the water inlet, and the pore plate and the water caps are located above the water outlet. A pore plate and water caps, which are originally located at the water inlet, are replaced with the hanging basket, so that a uniform water distribution function of the water distribution device can be realized, and the leakage of the resin in a cylinder is prevented; and furthermore, the hanging basket can be conveniently mounted / dismounted and is higher in precision and safety, and the problem that the water distribution effect is affected by water cap falling can not exist. Meanwhile, the middle discharging device is arranged 5 cm above the cation exchange resin, so that the regeneration effect can be effectively improved, the resistance flushing is high in speed and long in cycle, and the engineering cost is lowered.

The invention discloses a UASB reactor for sewage treatment. The UASB reactor includes a UASB reactor pool and a support rod located on the central axis of the UASB reactor pool. The support rod is connected with a water distribution pipe, and the water distribution pipe It is installed horizontally, and the support rod is installed vertically. The UASB reactor also includes a sewage return pipe, and the sewage return pipe includes a first sewage return pipe and a second sewage return pipe. The first sewage return pipe One end is connected with the support rod, the other end is arranged outside the UASB reactor pool, one end of the second sewage return pipe is located at the bottom of the UASB reactor pool, and the other end is arranged outside the UASB reactor pool. The structure of the UASB reactor in the present invention is simple, the effect of water distribution is good, the structure of the packing frame is stable, and the effects of water intake, drainage, exhaust and sludge discharge can be obviously improved.

The invention discloses a water turbine type splashing device. The water turbine type splashing device comprises a volute, a main shaft, a water rotating impeller and a splashing impeller. The side portion and the bottom of the volute are provided with a water inlet and a water outlet respectively. The upper portion of the main shaft is arranged in the water outlet of the volute and connected with the volute in a rotating mode. The water rotating impeller is fixed to the upper portion of the main shaft and located in the water outlet of the volute. The center of the splashing impeller is fixed to the lower portion of the main shaft and located below the water outlet of the volute. The water rotating impeller fixed to the main shaft is arranged in the volute, through two-stage rotation drive, the rotating speed of the splashing impeller is guaranteed, the grain size of water drops is smaller, the water distributing effect is effectively improved, and therefore the cooling effect of a cooling tower is effectively improved.

The invention discloses a circular pump station water collecting tank with a uniform water distribution device. The circular pump station water collecting tank is divided into an upper layer structureand a lower layer structure, wherein the lower layer structure comprises a water inlet tank culvert and a water distribution tank culvert, the upper layer structure comprises a water pump water inletflow channel, a separation pier and a water pump unit, and the upper layer structure and the lower layer structure are connected through the uniform water distribution device; the uniform water distribution device is composed of flow guide plates, support stand columns and press plates, the flow guide plates comprise the horizontal flow guide plate and the longitudinal flow guide plate which areperpendicularly and crosswise arranged, and the press plates comprise the first layer of press plate, the second layer of press plate and the third layer of press plate which are arranged in a gradingmode from bottom to top. According to the water collecting tank, the backflow and rotational flow states of bottom water flow are effectively improved, and flow distribution of an upstream face and adownstream face is uniformized; through the three layers of press plates which are arranged in the grading mode, water flow of the upper layer of the water collecting tank is uniformly diffused to the periphery in the plane direction, and the flow is uniformly distributed in the vertical face direction, so that the purpose of uniform outflow of a pump station is realized, the inflow condition ofa water pump is improved, and the safe and efficient operation of the water pump is ensured.

The invention discloses an efficient pulse anaerobic filter which comprises a filter body.Combined packing and an overflow weir which is arranged above the combined packing in a spaced mode are arranged in the filter body, a bell-jar siphoning type pulse generator is arranged on the upper portion of the filter body, an exhaust box of the bell-jar siphoning type pulse generator is located on the overflow weir, a drainage lower opening of the exhaust box is communicated with a water-distribution main pipe which is longitudinally arranged in the filter body, and the water-distribution main pipe penetrates through a combined packing area to be communicated with a mud discharge pipe located at the bottom area of the filter body and multiple perforated water-distribution branch pipes located below the mud discharge pipe.The efficient pulse anaerobic filter is simple in structure, low in construction cost and convenient to maintain.

The invention discloses a water distribution apparatus for improving water distribution to prevent stink overflow. The apparatus comprises: supporting columns; mounting racks respectively fixedly arranged on the supporting columns; a water distribution weir trough horizontally erected on the mounting rack, wherein the water distribution weir through comprises a water distribution channel with an upward opening, two sidewalls of the water distribution channel are water distribution weirs, and the upper edge of each of the water distribution weirs is uniformly provided with tooth spaces; water distribution flat plates arranged at two sides of the water distribution channel, wherein the inner side edges of the water distribution flat plates are connected with the outer sides of the water distribution weirs, and each of the water distribution flat plates is uniformly provided with a plurality of water distribution holes; and a gas collecting cover covered above the water distribution weir troughs. The apparatus has the advantages of water distribution uniformity improvement, stink overflow prevention, obstruction prevention, horizontal height adjustment, convenient maintenance and management, and stable running.

The invention provides a micro-electrolysis catalysis strengthening hydrolytic acidification reactor. The micro-electrolysis catalysis strengthening hydrolytic acidification reactor is characterized by comprising a water distribution and gas distribution area, a hydrolytic acidification area, a two-phase separation area and a catalysis strengthening micro-electrolysis area from the bottom up. The reactor provided by the invention is uniform in water distribution, uniform and controllable in gas distribution, unlikely to blockage and high in liquid and solid separation effect and shock load resistance, effectively improves the biodegradability of wastewater, and is suitable for treatment of recalcitrant sewage; trials show that the water inflow COD can be up to 50,000 mg / l, and the COD removal rate can reach 41%.

The invention discloses a quartz sand cushion active carbon filter with an active carbon powder leakage preventing function. The filter comprises a filter body; a quartz sand cushion and an active carbon layer are arranged in the filter body; the filter body is also provided with a water inlet, a water outlet, a forward washing water drainage port, a backwashing water drainage port and a backwashing water inlet; and a fine sand layer is arranged between the quartz sand cushion and the active carbon layer. According to the quartz sand cushion active carbon filter with an active carbon powder leakage preventing function disclosed by the invention, since a fine sand layer is arranged between the active carbon layer and the quartz sand cushion, the phenomenon of active carbon powder leakage in the use of an active carbon filter is solved.

The invention discloses a UASB reactor for sewage treatment, the UASB reactor includes a UASB reactor pool and a supporting rod located in the central axis of the UASB reactor pool, the supporting rod is connected with a water distribution pipe, the water distribution pipe is installed horizontally, the supporting rod is vertically installed, the UASB reactor also includes a water discharge groove, and the drainage groove is located in the UASB reactor pool and at the upper part of the UASB reactor pool. The structure of the UASB reactor is simple, the effect of water distribution is good, the structure of a filler frame is stable, and the effect of water inletting, water discharge, exhaust and sludge discharge can be obviously improved.

The invention provides a flow guide hydrolysis pot system capable of lifting a center flow guide cylinder. The flow guide hydrolysis pot system comprises a hydrolysis pot, the flow guide cylinder is vertically mounted at the center of the hydrolysis pot, a spiral flow guide column is arranged at the center of the flow guide cylinder, water outlets are formed in the top end of the flow guide cylinder, water inlets are formed in the bottom of the flow guide cylinder, and the bottom of the spiral flow guide column is connected with a waterproof motor. According to the flow guide hydrolysis pot system, when water distribution is needed, the waterproof motor is turned on, water treatment agents at the bottom of the hydrolysis pot and sewage mixed solution enter the flow guide cylinder from the water inlets, are lifted to the top of the flow guide cylinder through the high-speed rotatable spiral flow guide column, sprayed out by the water outlets, fall into the top of the hydrolysis pot and are slowly deposited to the bottom of the hydrolysis pot, and the water treatment agents and the sewage are sufficiently mixed in the process. According to the system, the water treatment agents and the sewage are mixed by the aid of the flow guide cylinder with the spiral flow guide column arranged at the center of the hydrolysis pot, so that the middle and lower portion of the hydrolysis pot is a completely mixed suspended sludge bed state, the upper portion of the hydrolysis pot is a sedimentation state, and the system is sufficient in mixing, good in water distribution effect, simple in water distribution mode and low in energy consumption.

The invention relates to a double-layer rotational-flow-water-distribution activated carbon filter. The double-layer rotational-flow-water-distribution activated carbon filter comprises a tank. An exhaust pipeline is arranged at the top of the tank. A water inlet pipeline is arranged on one side of the exhaust pipeline. A first three-way connector is arranged at the tail end of the water inlet pipeline. One end of the first three-way connector is connected with the water inlet pipeline. The other two ends of the first three-way connector are respectively a water inlet and a backwashing water outlet. A double-layer rotational-flow water distribution device is arranged below the end, extending into the tank, of the water inlet pipeline. The double-layer rotational-flow water distribution device comprises an upper-layer water discharge retaining plate directly facing the end of the water inlet pipeline and a lower-layer water discharge rotational-flow plate arranged below the upper-layer water discharge retaining plate, wherein the upper layer water discharge retaining plate comprises a support connected with the top end of the tank and a water distribution plate at the bottom end of the support, conical through holes are evenly formed in the water distribution plate, the distance between the lower-layer water discharge rotation flow plate and the upper-layer water discharge retaining plate is 40-80mm, the lower-layer water discharge rotational flow plate comprises a plurality groups of fan-shaped plates, the fan-shaped plates are evenly distributed around a circle center, and each group of the fan-shaped plates is formed by a plurality of rotation flow plates.

The invention discloses a water cold storage system based on a phase change energy storage cold storage tank, and belongs to the technical field of water cold storage engineering. The water cold storage system comprises the cold storage tank, and a cold storage unit and a cold discharge unit which respectively communicate with the cold storage tank, wherein a water return opening is formed in a top cover of the cold storage tank, a water outlet is formed in a bottom cover, a movable phase change energy storage unit is arranged between an upper water distributor and a lower water distributor, the movable phase change energy storage unit is in sliding connection with the inner side wall of a tank body, the movable phase change energy storage unit comprises a reverse osmosis membrane and a movable frame for fixing the reverse osmosis membrane, a composite phase change layer is arranged in the reverse osmosis membrane, and the movable phase change energy storage unit is connected with an automatic control system. According to the water cold storage system based on the phase change energy storage cold storage tank, the defect that the thickness of a thermocline is large due to water flow disturbance in the prior art is overcome, in the provided cold storage system, frozen water and backflow hot water can be separated through the movable phase change energy storage unit, the composite phase change layer absorbs heat and melts and cools the backflow hot water, weak disturbance between the frozen water and the backflow hot water is ensured, and a small thermocline is formed.

The invention discloses a water distributor with a self-adjusting type opening. The water distributor comprises a water distribution pipe, a water distribution elbow, a water distribution cap and a plurality of elastic members, one end of the water distribution pipe is connected with a main water pipe, the other end of the water distribution pipe is provided with the water distribution elbow, thewater distribution elbow is connected to the water distribution cap, a diffusing baffle is fixed to the position a set distance away from the lower portion of the water distribution elbow, and the diffusing baffle is fixed below the water distribution elbow through the multiple elastic members. A water distribution device comprises the main water pipe and a plurality of above water distributors, wherein the multiple water distributors are evenly arranged on the two sides of the main water pipe, and the multiple water distributors communicate with the main water pipe. By means of the water distributor with the self-adjusting type opening and the water distributing device, the water distribution effect is effectively improved, and the efficiency of cold storage and cold release is improved.

The invention discloses a perforated-plate-water-cap activated carbon filter with an activated carbon powder leakage prevention function. The perforated-plate-water-cap activated carbon filter comprises a filter body which is internally provided with a perforated plate water cap structure and an activated carbon layer; a water inlet, a water outlet, a washing waterspout, a backwashing waterspout and a backwashing water inlet are arranged on the filter body; and a fine sand layer is arranged between the activated carbon layer and the perforated plate water cap structure. According to the invention, as the fine sand layer is arranged between the activated carbon layer and the perforated plate water cap structure, the phenomenon of powdered activated carbon leakage during the use of the activated carbon filter is avoided.

The invention discloses a water distributor. The water distributor includes a connecting loop (1), an upper annular plate (2), water distribution plates (3), water distribution holes (4), a net drum (5), upright posts (6), locating rings (7), a screen (8) and a lower annular plate (9). The water distributor is characterized in that the bottom is provided with the screen, the locating rings (7) are arranged above and under the screen (8), the upper locating ring (7) is fixed on the upright posts (6), the lower locating ring (7), the screen (8) and the lower annular plate (9) are fixed through bolts; the net drum (5) is located in symmetrical gap of the upper annular plate (2) and the lower annular plate (9); a plurality of water distribution plates (3) are arranged in the net drum (5) and are fixed on the upright posts (6), a plurality of water distribution holes (4) run through the water distribution plates (3). The water distributor is applied to the interior of a water treatment tank, and is simple in structure, low in cost, good in water distribution effect, firm and reliable, easy to implement and more practical.

The invention discloses a water distribution system for a groundwater remediation device. The system includes a water distribution pipe, which is formed by connection of several round tubes with equal length and different pipe diameters. The pipe wall of the water distribution pipe is provided with three rows of holes, each row of holes are equidistantly arranged along a cylinder bus, and the central angle corresponding to the arc-shaped pipe walls between adjacent two rows of holes is 45degree-75degree. The small pipe diameter end of the water distribution pipe is connected to a water conduit of the groundwater remediation device, and the large pipe diameter end is a sealed end. The holes of the water distribution pipe are downward embedded between one side of a first level filler layer's upper surface and a first layer water insulation baffle, multi-layers of water insulation baffles parallel to the first level filler cross section are disposed in the first level filler layer, the length of the water insulation baffles is 70%-85% of that of the first level filler layer, the interlaced ends of the multi-layers of water insulation baffles are connected to the side wall of the first level filler layer, and the other ends are folded upward by an angle. A second level filler layer is disposed below the first level filler layer.

The invention provides a preparation method of a multi-central-tube hollow fiber membrane module, which comprises the following steps: oppositely arranging two filament separation rings, and correspondingly embedding the two ends of a central tube into fixing sleeves at the corresponding positions of the filament separation rings respectively; arranging the membrane filaments into bundles according to the distance between the adjacent fin plates, and respectively embedding the two ends of a single bundle of membrane filaments between the adjacent fin plates of the filament dividing rings at the two ends until the membrane filaments are uniformly mounted between all the fin plates, so as to obtain a central tube assembly; integrally embedding the central pipe assembly into the membrane shell, fixedly mounting the wire dividing rings at the openings in the two ends of the membrane shell, cut-trimming the ends of membrane wires, then pre-blocking the openings of the membrane wires; and finally, performing sealing and pouring on the openings in the ends of the assembly, and after a pouring layer is hardened, cutting the ends to be level to remove the pre-plugged holes, thus manufacturing the multi-central-tube hollow fiber membrane module. By adopting the method, the installation difficulty of the membrane filaments can be greatly reduced, the preparation efficiency is improved, and the method has a good application prospect.

The invention discloses a water distributor system. The water distributor system comprises a primary water distributing device, a secondary water distributing device and a tertiary water distributingdevice, wherein the primary water distributing device comprises a primary water storage container, a primary water inlet tube and a primary water outlet tube; the secondary water distributing device comprises a secondary water storage container and a water distributor bracket tube; the tertiary water distributing device comprises a tertiary water storage container, a tertiary water inlet tube, a tertiary water outlet tube and a terminal water distributing head. Three grades of water distributing devices which are distributed up and down are arranged, and the water distributing device at each stage is equipped with the water storage container with buffer and equi-partition effects, the primary water distributing device is positioned on top, the secondary water distributing device is positioned at the lower end of the primary water distributing device in a radioactive mode relative to the center of the primary water distributing device, and the tertiary water distributing device is positioned at the lower end of the secondary water distributing device in the form of a radioactive ray, so that water flow is uniformly distributed on the plane on which the terminal water distributing head is located after being subjected to multi-stage buffer and uniform diffusion, and therefore, water distribution does not have a blind area, and the water distribution effect is more ideal.

The application discloses a kinetic energy rotating nozzle for water distribution in a cooling tower. The nozzle comprises a pipe barrel and a nozzle body, one end of the pipe barrel is connected with an outer circulating water pipe, and the other end of the pipe barrel is connected with the nozzle body; and the nozzle body comprises a first water splashing disc and a second water splashing disc, the first water splashing disc and the second water splashing disc are connected through two symmetrical fixing tie bars, the first water splashing disc and the pipe barrel are connected through two symmetrical fixing tie bars, and the second water splashing disc and the pipe barrel are connected through two symmetrical fixing tie bars. The nozzle has the following advantages that the problem that an existing nozzle is not beneficial to combination geometrically is solved, it is guaranteed that water is evenly supplied to filler in unit area, designers have more and good choices to meet actual design requirements, and a nozzle with a non-circular spraying area is a fundamental way for solving the problem that the efficiency of the cooling tower is affected due to incompatibility of existing circular spraying areas in geometrical shapes.

The invention provides a cold storage system using water distribution modules. The cold storage system using the water distribution modules comprises a cold storage body, the cold storage body comprises 3 to 200 square cold storage modules arranged orderly and compactly, two ends of the cold storage body and the inner side of a waterproof film are further provided with a water distribution system,and the water distribution system comprises water distribution pipes and a plurality of water distribution modules. Compared with the existing art, the size of each cold storage module is small, andcompared with a cold storage box, the number of phase-change cold storage balls capable of being contained is less; but the cold storage modules can be spliced, assembly is very convenient, the phenomenon that the multiple phase-change cold storage balls collide with one another can also be reduced, and the water distribution system can realize full contact between water flow and the phase-changecold storage balls.

The invention discloses an environment-friendly type hot galvanizing cooling device comprising a topless cooling bin. The bottom wall of the cooling bin is evenly provided with multiple water discharging holes. A topless liquid storage bin is arranged under the cooling bin. The side wall of the cooling bin is fixedly provided with a support. The cooling bin is fixed to the upper side of the liquidstorage bin through the support. The outer side wall of the lower end of the liquid storage bin is provided with water outlet pipes. The outer side wall of the cooling bin is provided with water inlet pipes. The outer side of the support is fixedly connected with water pumps. The two ends of each water pump are connected with the corresponding water outlet pipe and the corresponding water inlet pipe through hoses. The end, far away from the hose, of each water inlet pipe is connected with a sprayer. The sprayers are arranged in the cooling bin. The outer side wall of the upper end of the liquid storage bin is symmetrically inlaid with fans. The fans communicate with the inner portion of the liquid storage bin. A filtering layer is arranged on the upper side of the liquid storage bin. Theenvironment-friendly type hot galvanizing cooling device can effectively cool hot galvanized metal, water resource waste is little, and the use process is environmentally friendly.

A water spray nozzle (3) for cooling tower is provided. Wherein, the nozzle (3) or the upper connection section of the nozzle (3) has an upward extension section in a water distribution groove (1). Several layers of water inlet holes or slots (4) are opened around the extension section at different heights, or several tapered water inlets (5) with downward taper tips are distributed around the extension section. The nozzle (3) far from a water distribution port can still get the uniformly distributed water even when the water quantity of the cooling tower is low, the efficiency of the cooling tower thereby will not be reduced.

The invention discloses an efficient anti-pollution cation (anion) ion exchanger in the technical field of ion exchangers, which comprises a first exchanger and a second exchanger, the first exchanger is positioned at the upper end of the second exchanger, through hole cover plates are arranged at the front ends of the first exchanger and the second exchanger, and a top cover is arranged on the upper end surface of the first exchanger. A water distribution mechanism is arranged at the upper end in the first exchanger; the water distribution mechanism comprises a water distribution pipe, a fixing ring, a fixing rod, a plurality of branch pipes, a limiting hoop, a first elastic hinge and a screw hole, the water distribution pipe penetrates through the interior of the top cover and extends into the first exchanger, one end of each branch pipe is connected with the water distribution pipe, and the fixing rod is fixedly connected between the fixing ring and the water distribution pipe. The water distribution holes are formed in the lower ends of the branch pipes, so that the branch pipes are prevented from rotating, the water distribution holes can be always kept downward, a better limiting effect is achieved, subsequent disassembly can be performed, and workers can conveniently manage the branch pipes.

The invention discloses a water cap, which comprises a cap cover, a cap body and a screw. The cap body is of a column integral structure. Vertical gaps are evenly distributed on the outer lateral face of the cap body, the top of the screw is fixedly connected with the cap cover, the cap body and the cap cover adopt the snap button mode to conduct assembly and connection, the lower portion of the screw penetrates through the cap bottom of the cap body, and at least one conical combination face is arranged between the lower portion of the screw and the cap bottom. The water cap can be combined and installed by sleeving two groups of water caps in embedding mode. Compared with the prior art, the combination position of the cap body of the water cap and the cap cover on the top portion of thescrew adopts the combination location design of a snap button, the screw and the cap bottom adopt conical combination, so that the water cap has better sealing performance and is not stressed excessively in assembly and disassembly. No quality problem exists even laypeople operates. Therefore, the water cap is really light, convenient, reliable and capable of being cleaned and used repeatedly, greatly improves operation effect of users and reduces production cost.