63results about How to "Improve washing effect" patented technology

This invention relates to the field of washing machine technology, specifically providing a washing machine and its control method, which at least solves the problem of easily damaging clothes. The washing machine provided by this invention includes a body, a washing drum, and a door. The body has a clothes loading port; the washing drum is rotatably disposed within the body and has a washing chamber; the door is hinged to the body and used to open and close the clothes loading port, and has a detergent dispenser. The door also has an injection channel and an outlet channel. The injection channel communicates with both the detergent dispenser and the washing chamber, and the outlet channel communicates with both the detergent dispenser and the washing chamber. The inlet of the injection channel is configured to receive water overflowing from the washing drum during rotation, so as to dilute the detergent added a second time in the detergent dispenser. This invention effectively avoids the corrosion risk that may be caused by high-concentration detergent directly contacting clothes and also reduces the overall water consumption of the washing machine.

The spraying arm assembly comprises a rotatable spraying arm and a steering piece, the spraying arm comprises a first cover body and a second cover body, and the first cover body and the second cover body are combined in a covering mode to form a first flow channel and a second flow channel. The first cover body is provided with a first spraying opening communicated with the first flow channel and a second spraying opening communicated with the second flow channel, and the axis of the first spraying opening and the axis of the second spraying opening are obliquely arranged relative to the rotating axis of the spraying arm and are not located on the same plane. The inclination directions of the first spraying opening and the second spraying opening are opposite; the steering part is movably arranged relative to the spraying arm and provided with a communicating cavity, and the communicating cavity is provided with a first position communicating with the first flow channel and a second position communicating with the second flow channel. The spraying arm assembly and the dish-washing machine can solve the problem that a dish-washing machine in the prior art cannot thoroughly clean some areas of tableware.

The utility model discloses an energy -conserving high -efficient furnace gas scrubbing tower belongs to scrubbing tower technical field, including base, the base one side has communicated air inlet pipe, the base inside is provided with fan, preprocessing mechanism, preprocessing mechanism includes setting in the heat preservation shell of base top, the filter plate is provided with in heat preservation shell bottom, is provided with the heat storage cavity between heat preservation shell inner wall and outer wall, a plurality of water injection bin are provided with in heat storage cavity, and washing mechanism includes setting in the compression resistance shell of heat preservation shell top, a plurality of shower nozzles are provided with in compression resistance shell inner wall, the water distribution pipe is communicated with in the one end of shower nozzle, the water distribution pipe sets up between compression resistance shell outer wall and inner wall, the both sides of shower nozzle all are provided with the intercepting plate, one side of intercepting plate and compression resistance shell inner wall fixed connection, in the utility model, through the heat recovery of heat collection block in drying mechanism is used for the heat of surplus material water, makes atomization effect better and less energy consumption, through the continuous setting of multiple mechanisms makes the washing process more coherent efficient.

The utility model discloses a wastewater sedimentation tank convenient to clean, including the sedimentation tank body, the one side fixed mounting of sedimentation tank body has the cleaning assembly, the bottom fixed mounting of sedimentation tank body has the bottom plate, and the top of bottom plate is provided with stirring assembly, the cleaning assembly includes the fixed frame and motor, and the fixed frame fixed mounting is at the one side of sedimentation tank body, and the motor fixed mounting is at one side of fixed frame, and the output of motor is fixedly connected with reciprocating screw rod, and the lateral wall of reciprocating screw rod is connected with moving frame no.

The utility model discloses a washing test machine for simulating washable ultraviolet-proof fabric, and particularly relates to the technical field of fabric detection, the washing test machine comprises a case, a partition plate is arranged in the case, a washing bin is arranged on one side of the partition plate, a machine bin is arranged on the other side of the partition plate, a containing assembly is mounted on the partition plate, and the containing assembly is arranged on the machine bin. A heating plate is arranged at the bottom end of the interior of the washing bin and connected with a heater arranged in the machine bin, a temperature sensor is installed in the middle of one side of the partition plate, a water level sensor is arranged above the temperature sensor, a water inlet is formed in the partition plate and connected with a water pump arranged in the machine bin, and a water outlet is formed in the water pump. A water drainage pipe is arranged at the bottom of the washing bin, supporting legs are installed at the bottom end of the machine box, an upper cover is hinged to the top end of the machine box, a lock catch is arranged between the upper cover and the machine box in a matched mode, and a sealing gasket is arranged at the connecting position of the upper cover and the top face of the washing bin. The water washing device has the advantages of being capable of improving the water washing effect, convenient to operate and observe, stable in water flow and capable of improving the detection efficiency.

The utility model discloses an on-line cleaning type stop valve which comprises a valve body, a valve rod screwed on the valve body through a valve cover, a valve disc installed at the lower end of the valve rod and a valve seat installed on the valve body and matched with a sealing face at the lower end of the valve disc. The cleaning guide rod can move in the valve rod in the axial direction and can rotate, and the cleaning guide rod is connected with the valve disc after moving downwards. A cleaning medium hole is formed in the cleaning guide rod in the axial direction, the upper end of the cleaning medium hole can be communicated with the medium connector, the lower end of the cleaning medium hole can be communicated with a cleaning medium outlet in the valve disc after the cleaning guide rod moves downwards, and the cleaning medium outlet faces the sealing face of the valve seat. According to the on-line cleaning type stop valve, on-line cleaning can be carried out on the sealing face of the stop valve under the condition that the stop valve or the valve cover is not disassembled.

The utility model discloses a self-cleaning type air filter which comprises an air filter housing, a vertically-placed air filter element is installed in the air filter housing, a positioning sleeve is installed on the outer wall of the bottom of the air filter housing through an opening, the inner wall of the positioning sleeve is connected with a sliding pipe in a sliding mode, and the sliding pipe is connected with the air filter element in a sliding mode. A hollow lifting disc is fixedly arranged on the outer wall of the top of the sliding pipe, blowback air holes distributed at equal intervals are formed in the outer wall of the hollow lifting disc, and the outer walls of the blowback air holes are slidably connected with the inner wall of the air filter element. According to the utility model, gas is input into the blowback pipe through the gas guide pipe by the compressor, the gas in the blowback pipe is input into the sliding pipe through the positioning sleeve, the gas in the sliding pipe is input into the hollow lifting disc and is discharged from the blowback gas holes, and the gas can be concentrated through the hollow lifting disc to wash a specified area in the air filter element; air dispersion is avoided, and the flow speed of gas flushing the air filter element can be increased.

The utility model discloses an efficient integrated pretreatment system, which relates to the technical field of automatic temperature control devices and comprises a visible washing tank, a two-way needle valve is arranged at the bottom of the visible washing tank, a gas-liquid separator is communicated with the side surface of the visible washing tank, a pretreatment cabinet is arranged on the outer side of a pretreatment cabinet, and a gas-liquid separator is communicated with the gas-liquid separator. The side face of the gas-liquid separator is communicated with the membrane filter through the adjustable flow meter, the zero-point gas switching loop is arranged on the side face of the silica gel tank, by means of the pretreatment system, the replacement number of pressure reducing valves is reduced, the maintenance cost is saved, meanwhile, the liquid level is convenient to adjust through the visual water washing tank, the water washing effect is improved, and the water washing efficiency is improved. The pretreatment system is relatively high in desulfurization and sealing performance, the leakage rate of equipment is reduced, and meanwhile, the risk of pollution of a gas chamber of an online analyzer is reduced. Two paths of switchable desulfurization tanks are adopted, so that continuous and uninterrupted online measurement and online desulfurization agent replacement are realized.

The utility model belongs to flat disc filter technical field, and disclose a kind of flat disc filter with filter cloth washing mechanism, including flat disc, the inside fixed mounting of flat disc top is equipped with filter cloth.The utility model is through setting movable plate, first cleaning brush, second cleaning brush and movable brush, by setting first cleaning brush and second cleaning brush, to be able to when filter cloth rotates, the granular material attached to filter cloth surface is cleaned, make its connection between filter cloth loose, and by starting first motor, so that rotating plate is rotated by rotating shaft, and then make that circular block extrusion push the inner surface of movable frame, to drive movable frame to reciprocate left and right, and then through connecting block drive movable brush to reciprocate left and right, so that movable brush can be back and forth cleaned to the outer surface of filter cloth, so that filter cloth surface gum quality deposition layer can be washed loose, to increase the effective filtration area of filter cloth.

The utility model discloses a kind of mechanism sand multilayer washing method powder removal equipment, belong to powder removal equipment technical field.It include support frame and conveying frame, the top of support frame is equipped with conveying frame, the top of support frame in conveying frame one side is equipped with dust removal pool, the outer wall of dust removal pool is equipped with discharging plate, support frame outside in conveying frame one side is symmetrically equipped with two groups of connecting frame, the outer wall of support frame is equipped with fixed plate, the top of fixed plate is equipped with servo motor, the output of servo motor is equipped with driving pulley, the surface of driving pulley is equipped with belt, the top of conveying frame is movably installed with rotating shaft.The utility model not only realizes that powder removal equipment is convenient to mechanism sand multilayer dust removal, facilitates that dust removal equipment is convenient to mechanism sand conveying dust removal, and facilitates that mechanism sand is washed with water in multiple positions, improve the efficiency of mechanism sand washing dust removal, improve the effect of mechanism sand washing.

The utility model discloses a wax liquid cleaning and recycling device which comprises a cleaning container mechanism, and a material distributing mechanism is installed in the cleaning container mechanism. The wax liquid is distributed into the cleaning container through the distribution mechanism to be cleaned, and the wax liquid with the density smaller than that of water floats above the water layer in the cleaning process; a wax liquid discharging pipe is installed on the cleaning container mechanism, the feeding end of the wax liquid discharging pipe is located at the upper end in the cleaning container mechanism, and the discharging end of the wax liquid discharging pipe is located on the outer side of the cleaning container mechanism. The material distributing mechanism comprises a feeding structure, the discharging end of the feeding structure communicates with a material distributing structure, and the material distributing structure comprises a material distributing bin; a plurality of material distribution through holes are formed in the material distribution bin; and the material distribution outlet pipe is communicated with the bottom of the material distribution bin. According to the device, the technical defect that waste wax generated during wax mold demolding cannot be conveniently recycled is effectively overcome, impurities in the wax are fully removed in a washing mode, wax liquid can be recycled, and the device is economical, environmentally friendly and convenient and easy to operate.

The utility model relates to the technical field of garden maintenance, in particular to a garden permeable pavement maintenance device which comprises a maintenance sweeping table, a dust collector and a flushing storage box are arranged at the top of the maintenance sweeping table, and a sweeping maintenance frame is hinged to the side face of the maintenance sweeping table. According to the utility model, the dust collection cleaning end is arranged and is communicated with the dust collector through the movable adjusting hose, dust and stones can be adsorbed by the dust collection cleaning end, and the lifting control frame can control the dust collection cleaning end to lift and can be tightly attached to the ground to adsorb and clean the stones and the dust in gaps of the road surface; a flow guide water pipe and a flow guide pump body can pump out a water source in a flushing storage tank, a spraying head is used for flushing and spraying, a cleaning roller body assists in cleaning, the road surface flushing and maintaining effect is good, the cleaning quality is excellent, the device can efficiently conduct dust absorption cleaning and water source flushing cleaning, and the cleaning quality of silt and stone in the deep position of the crack ground and the ground surface is high; cleaning is convenient and efficient.

The application discloses a kind of bottle residual gas safety processing mechanism for gas production, it is related to gas processing technical field, including processing tank, the downward two sides of processing tank are respectively provided with the interface for residual gas supply and discharge, and the side of processing tank is fixedly connected with mounting bracket, and the inside of mounting bracket is fixedly connected with the liquid tank of containing filter liquid, and the inside of processing tank is fixedly connected with the filter plate for filtering gas.The bottle residual gas safety processing mechanism for gas production, the side of rotating ring is fixedly connected with driving plate, liquid tank inside water flows to rotating ring, will impact the driving plate of inclined arrangement, under the action of water flow impact force, rotating ring will be around its central axis stable rotation, in the rotating ring rotation process, with the rotation of rotating ring, its below spray pipe also rotates, so that filter liquid is evenly sprayed in the form of rotary spray in processing tank inside, expands the spray coverage, so that gas and liquid can be more fully contacted and mixed, improves the dissolution and washing effect of impurities in gas.

The utility model relates to building water supply and drainage engineering technical field, concretely relates to a building water supply riser automatic flushing system based on frequency conversion water supply, including the water supply riser that extends vertically, the side of water supply riser is connected with a plurality of water supply branch pipe, the lower end of water supply riser is connected to the water supply pipe, and the upper end of water supply riser one side is connected to the drain pipe, and the water supply branch pipe and the drain pipe are all installed with the electric signal control valve, when flushing the water supply riser, close the electric signal control valve on the water supply branch pipe and open the electric signal control valve on the drain pipe, and the inner wall of water supply riser is washed through the high -speed water flow, and the wastewater produced by flushing the water supply riser is discharged through the drain pipe.

The invention discloses a cleaning device for improving the surface modification treatment quality of metal powder and a using method thereof.The device comprises a bottle burning plug, a cleaning rod body, a cleaning block and a side edge cleaning assembly, one end of the cleaning rod body penetrates through the bottle burning plug to be connected, and the other end of the cleaning rod body is connected with the cleaning block; a fixing strip is arranged on the side wall of the cleaning rod body and connected with the side edge cleaning assembly. The cleaning device suitable for cleaning the single-mouth / multi-mouth round-bottom flasks is simple in design structure and free of a mechanical transmission device, and the manufacturing cost can be greatly reduced. The device can achieve automatic and efficient cleaning without manual operation, when the device is used, only the upper portion of the cleaning rod body needs to be connected with the rotating speed regulator, the cleaning rod body can drive the cleaning brush and the cleaning block to continuously sweep while rotating, and therefore all-directional cleaning of the round-bottom flask is achieved. The device further has the advantages of being high in adjustability, good in adaptability and the like, and different types of cleaning requirements can be met.

The invention relates to the technical field of washing equipment, particularly provides a water inlet system of washing equipment and the washing equipment, and aims to solve the problem that the dissolving effect of a detergent or a softener is poor due to the mode that an existing treating agent is directly fed or enters along with water flow. The water inlet system of the washing equipment comprises a detergent storage cavity, a softener storage cavity, a pump device, a water inlet pipeline, a first switching valve, a second switching valve and a temporary storage cavity, wherein the first switching valve, the second switching valve and the temporary storage cavity are sequentially arranged on the water inlet pipeline; the detergent storage cavity and the softener storage cavity are both communicated with the first switching valve, a suction port of the pump device is communicated with the second switching valve, and an outlet of the pump device is communicated with the water inlet pipeline between the second switching valve and the temporary storage cavity. Through combined arrangement of the detergent storage cavity, the softener storage cavity, the pump device, the first switching valve, the second switching valve and the temporary storage cavity, a treating agent can be mixed and dissolved with water in advance, the treating agent is dissolved in advance, the washing effect is improved, and damage to clothes is reduced.

The utility model relates to water washing mechanism technical field discloses a kind of printing and dyeing washing mechanism, including washing tank, and washing tank is equipped with cleaning assembly;Cleaning assembly includes the spray pipe and the rotating roller oppositely arranged at the two sides of cloth, multiple nozzles are arranged on the spray pipe, and the rotating roller is equipped with cleaning brush, and the rotating roller rotates for driving cleaning brush to brush the two sides of cloth;Washing tank is equipped with circulating assembly outside, and circulating assembly includes circulating box, and the side wall of washing tank is equipped with water inlet, and water inlet is equipped with filter piece, and the side wall of circulating box is equipped with water supply pipe, and water supply pipe is equipped with circulating pump.The two sides of cloth output after washing are cleaned by cleaning assembly, to reduce the residue of impurities, to improve the washing effect of cloth;Cleaning water in washing tank is transported to cleaning assembly by circulating assembly, so that cleaning assembly sprays water to cloth and flows back to washing tank, to realize the recycling of cleaning water in washing tank, improve the utilization of clean water.

The utility model relates to the technical field of washing equipment, in particular to a spraying device and a dish-washing machine comprising the spraying device, and aims to solve the problem that an existing dish-washing machine has washing dead angles. Therefore, the spraying device comprises a fixing component, a spraying arm assembly and a driving assembly, the spraying arm assembly comprises a driving arm, a spraying arm and a transmission mechanism, the driving arm is rotatably installed on the fixing component, the spraying arm is rotatably installed on the driving arm, and the driving arm is in transmission connection with the spraying arm through the transmission mechanism. The driving assembly can drive the driving arm to rotate, the driving arm and the spraying arm are in transmission connection through the transmission mechanism, the spraying arm can rotate relative to the driving arm along with rotation of the driving arm, and the projection area of the spraying area of the spraying arm is close to a rectangle. Therefore, the spraying range of the spraying device is expanded, washing dead angles of the dish-washing machine are eliminated, and the washing effect of the dish-washing machine is improved.

The utility model relates to the technical field of hydrogen recovery, especially to a hydrogen recovery water washing device, which improves the contact area of hydrogen and water by dispersing mechanism to discharge hydrogen into the water washing mechanism, and then improves the water washing effect on hydrogen, and when replacing the water in the water washing mechanism, the hydrogen discharged to the water washing mechanism is temporarily stored by the storage mechanism to ensure the stable operation of the front production line, thereby improving the practicability of the equipment, comprising a water washing mechanism, further comprising a dispersing mechanism and a storage mechanism, the dispersing mechanism is installed in the water washing mechanism, and the storage mechanism is installed on the water washing mechanism, the water washing mechanism washes hydrogen, the dispersing mechanism disperses hydrogen, and the storage mechanism temporarily stores hydrogen.

This invention discloses a filtration mechanism and device for industrial pure water preparation, relating to the field of industrial pure water preparation technology. It includes an activated carbon filter with an inlet pipe and an outlet pipe connected to its upper and lower ends, respectively. A drain pipe is also connected to the lower end of the activated carbon filter. Solenoid valves are installed on the inlet, outlet, and drain pipes. A U-shaped sedimentation tank is fixedly connected to the lower end of the drain pipe, forming a sedimentation chamber. This invention improves upon existing activated carbon filters, enabling them to perform activated carbon rinsing, remove activated carbon dust, and collect the dust without wasting water resources. The rinsing operation is simple, and the rinsed activated carbon can be used directly, making it more convenient to use. This invention forms an improved solution that integrates low improvement cost, convenient operation, good rinsing effect, and water conservation.

This invention provides a water level control method and a garment processing device, the garment processing device including a washing drum; the washing process of the garment processing device includes an evaluation stage performed first and a washing stage performed later; the water level control method includes: inferring a preferred water level frequency range required for the washing stage in the evaluation stage; controlling the water level in the washing drum during the washing stage based at least on the preferred water level frequency range; by pre-inferring the preferred water level frequency range required for the washing stage in the evaluation stage, this method can determine a water level target matching the current washing conditions before the start of washing; compared with existing solutions that rely on detergent addition adjustment or passive defoaming, this method directly starts from the dynamic characteristics of the water level, giving the water level control during the washing stage a feedforward adaptive capability, thereby maintaining the foam concentration within an optimal range that is conducive to stain removal without reducing the mechanical rinsing force.

The utility model belongs to the technical field of fabric production, especially is fancy negative pressure circulating water washing device, including water tank, the top welding of water tank has two side plates. The utility model discloses through putting the article needing water washing into the water washing box, then closes the case door, the controller starts the air pump and extracts the air in the water washing box, makes the air pressure in the water washing box gradually reduce, forms the negative pressure environment, and the pressure sensor real -time monitoring the pressure in the water washing box, and the controller starts the water pump and extracts the water in the water tank and transports to the U -shaped pipe, and the U -shaped pipe distributes the washing liquid to the rectangular pipe on the inner wall of the water washing box two sides and sprays the washing liquid evenly on the article in the water washing box through the spray head, and the article is washed thoroughly, and the controller starts the motor and drives the stirring rod to rotate, makes the washing liquid and the article fully contact, and the sewage is discharged into the water tank through the drain pipe, and is filtered through the filter plate, and the filtered water returns to the bottom of the water tank, so as to be extracted and used by the water pump again, realizes the recycling of water resources.

The utility model relates to the technical field of low carbon olefin production, and disclose a kind of for methanol conversion preparation low carbon olefin equipment, including equipment shell, the outer wall of equipment shell is connected with gas inlet, the upper end in the inside of equipment shell is equipped with for water spraying water spraying mechanism, the inner wall of equipment shell is equipped with for filtering filter mechanism;The water spraying mechanism includes mounting piece, the upper end in the inside of equipment shell is fixed in mounting piece, the inside of mounting piece is rotatably connected with water wheel by bearing, the lower end of water wheel is fixed with connecting pipe.The utility model high pressure water pump will be stored in the bottom of equipment shell Water is pumped out, is transported to mounting piece by delivery pipe, water enters to mounting piece after will promote water wheel rotation, water wheel rotation drives connecting pipe rotation, is sprayed out again through spraying head, connecting piece is driven rotation by connecting pipe, so that spraying head can evenly water, and then improve washing effect, improve practicability.

A solid detergent feeding device of a dish washing machine comprises a feeding port, a conveying channel, a feeding body and a discharging port which are arranged on a door body and communicated in sequence, one end of the conveying channel is connected with the feeding port, the other end of the conveying channel is connected with one end of the feeding body, the discharging port is formed in the other end of the feeding body, the feeding port comprises a cover body assembly, and the conveying channel is matched with the door body in shape and layout. A shelf which protrudes out of the door body and is used for receiving the solid detergent is arranged on the discharge port, and the shelf is arranged in a hollowed-out manner; the cover body assembly comprises a surface cover and a bottom cover which are rotationally connected with each other, the bottom cover is fixed on the door body, a feeding through hole communicated with the conveying channel is formed in the bottom cover, and the feeding through hole is opened or closed when the surface cover rotates. According to the feeding device, the feeding port, the conveying channel, the feeding body and the discharging port are arranged, the feeding port comprises the cover body assembly used for opening and closing the feeding port, when the feeding device is not used, the feeding port can be closed through the cover body assembly, and therefore water vapor on an inner container of the dish washing machine is prevented from entering the feeding device through the feeding port.

The utility model provides a filter and dish washer belong to kitchen equipment technical field. The filter includes main frame, tubular filter part and cup, main frame includes upper frame and lower frame, upper frame and lower frame clamping, tubular filter part's axial both ends are rotatable connection with upper frame and lower frame respectively, cup sets up in tubular filter part, and cup and main frame are detachable connection. The cup carries out first course rough filtration to the residue, to leave the big piece residue in the cup, prevent the mesh hole from being blocked, tubular filter part carries out second course filtration to prevent small residue from being inhaled in the washing pump. When the cup gathers too much residue, can pour down the residue just can with cup, realize convenient cleaning. Because tubular filter part can rotate, when tubular filter part and water suction mouth opposite side is full of residue and water suction is not smooth, can rotate tubular filter part, make residue not gather in one place, improve washing water through mesh hole's unobstructed nature.

This application relates to a photovoltaic module with drainage and dust removal functions, particularly a module with built-in drainage and dust removal capabilities. It includes a frame, solar cells, and a glass cover. The frame consists of four side strips, the solar cells are encapsulated within the frame, and the glass cover covers the solar cells. The upper surface of the frame is higher than the upper surface of the glass cover. The module is characterized by further including multiple dust-proof blocks. By implementing the above technical solution, this application fixes dust-proof blocks at the inner corners of the frame. These dust-proof blocks are designed with drainage surfaces to connect the glass cover to the highest point of the corresponding inner corner of the frame. When the module is in an inclined state, falling rainwater flows to the lower edge of the frame's inner corner and exits the module through the drainage surfaces. The drainage surfaces reduce water flow resistance and increase water flow velocity, effectively flushing away accumulated dust along the lower edge, preventing dust accumulation, reducing the impact of shading caused by the accumulated dust, and to a certain extent reducing the probability of hot spots and increasing power generation.

The utility model discloses a sodium carbonate solution production device for sewage treatment, and relates to the technical field of sewage treatment. The device comprises a base plate, a rotating assembly is arranged above the base plate, the rotating assembly comprises a mixing cylinder vertically arranged above the base plate, strip-shaped plates which are symmetrically, vertically and fixedly connected are arranged on the outer side wall of the mixing cylinder, and supporting columns which are vertically and rotatably connected are arranged on the peripheral side of a rotating shaft which is connected with the middle of the side wall of each strip-shaped plate in parallel. The lower ends of the supporting columns are connected to the upper surface of the base plate. The output end of a rotating motor connected to the side wall of one supporting column is connected with the end of one rotating shaft. An auxiliary stirring assembly is arranged in the middle of the upper surface of the barrel cover. The rotating assembly is arranged, sodium carbonate powder on the inner wall of the feeding pipe is conveniently washed, waste is reduced, the inner wall of the feeding pipe is smooth and convenient to clean, the auxiliary stirring assembly is arranged and matched, sodium carbonate solution raw materials are stirred and mixed in different directions, the production efficiency of sodium carbonate solutions is improved, and the sodium carbonate solutions are timely used for sewage treatment.

The utility model provides an atmospheric tower long-period operation system of a boiling bed residual oil hydrocracking unit. The atmospheric tower long-period operation system comprises an atmospheric tower and a reflux pipeline, a second side line outlet of the atmospheric tower is connected to a first inlet of the atmospheric tower through a reflux pipeline, and the reflux pipeline is sequentially connected with a reflux pipeline valve, a first pump inlet filter, a first reflux pump, a reflux flowmeter and a reflux valve group; the reflux pipeline is connected with an external reflux pipeline, the inlet end of the external reflux pipeline is connected to a front path of the reflux valve group, and the outlet end of the external reflux pipeline is connected to a No.2 inlet of the atmospheric tower; the external reflux pipeline is sequentially connected with an external reflux flowmeter and an external reflux valve group; the washing effect of the lower tray of the atmospheric tower can be improved, and the product quality is ensured.

According to the water purifier waterway system with the double backflow waterways, the double-membrane backflow waterways and the pure water backflow waterways are arranged in the water purifier waterway system, so that the water purifier has a double-membrane backflow flushing mode and a pure water backflow flushing mode when the water purifier flushes the RO membrane of the second RO filter element; due to the fact that pure water backflow flushing adopts a partial pure water mixed PC filter element pure water flushing mode, the pure water backflow flushing device has the advantages of being large in water yield and low in water quality TDS value, and the double-membrane backflow flushing device adopts a complete pure water flushing mode, the double-membrane backflow flushing device has the advantages of being small in water yield and lower in water quality TDS value. Therefore, the control module can firstly adopt a mode of combining short-time pure water backflow flushing with double-membrane backflow flushing to flush the RO membrane of the second RO filter element, the flushing mode of saving water and having a good flushing effect is realized, and the effect that the TDS value of the first cup of water connected with the water purifier is very low is realized.