50 results about "Porous pipe" patented technology

The invention relates to the technical field of cone valve multi-mode air supply-energy dissipation cooperative cavitation reduction devices and control methods, and discloses a fluid control device named'cone valve multi-mode air supply-energy dissipation cooperative cavitation reduction devices and control methods'. The conical valve aims to solve the problems that an existing conical valve is serious in cavitation under the working condition of high pressure difference, air supply and energy dissipation functions are separated, and response lags. The device is characterized by comprising three stages of energy dissipation perforated pipes which are arranged at the outlet end of a valve body in a gradient mode, negative pressure injection air supply pipes which are symmetrically arranged outside a flow guide cover and flow guide fins which are welded to the inner wall of a cone, and the three stages of energy dissipation perforated pipes, the negative pressure injection air supply pipes and the flow guide fins cooperate to achieve pressure gradient pressure relief, self-adaptive air supply and flow state stability; the control method dynamically adjusts the air supply intensity based on the opening degree, the pressure difference and the vibration signal. According to the technical scheme, cavitation inception and collapse impact are remarkably restrained, vibration noise is reduced, the service life of the valve is prolonged, an external air source is not needed, the system pressure drop is controllable, and the system is suitable for ultrahigh pressure difference and large-flow hydroelectric working conditions.

The invention relates to the technical field of hollow fiber membranes, and discloses a preparation method of a dynamic MBR (membrane bioreactor) hollow fiber membrane component, which comprises the following steps: hollowly connecting an impeller framework with a rim pipe by using a connector to obtain an impeller type membrane component; a plurality of hollow fibers are cast into hollow fiber bundles, one ends of the hollow fiber bundles are cast on the reserved opening of the porous pipe sleeve of the impeller framework, the other ends of the hollow fiber bundles are bundled and cast on the hollow rim, and a blade type hollow fiber membrane assembly is prepared; connecting a hollow rim of the blade type hollow fiber membrane module with a rim pipe of the impeller type membrane module to obtain a dynamic MBR hollow fiber membrane assembly; arranging a plurality of dynamic MBR hollow fiber membrane assemblies on a water guide pipe, and connecting in series to form a wheel row; and arranging a plurality of wheel rows in a staggered manner to complete the preparation of the dynamic MBR hollow fiber membrane module. The invention can solve the problems of low packing density of the existing rotary membrane component and easy blockage and pollution of the root of the existing curtain type membrane component, and greatly prolongs the service life of the membrane.

The utility model discloses a kind of automobile parts cleaning device, including support frame, support frame is fixed cleaning tank and water receiving tank, first support plate is equipped in cleaning tank, and its upper portion is connected second support plate through support column, and second support plate is equipped support rod and pneumatic clamp. Pump machine and driving motor are installed on support frame, and pump machine inlet end is connected water tank, and outlet is connected porous pipe and spray pipe on first support plate through first distribution pipe, second distribution pipe. Drainage hopper is equipped in the bottom of cleaning tank, and water tank is connected by drainpipe on hopper, and top is connected cover plate by pneumatic push rod. The device is targeted cleaning by porous pipe and spray pipe, realizes water recycling, and part is fixed stable, convenient to operate, suitable for a variety of automobile parts cleaning.

The utility model belongs to the technical field of polycaprolactam polymerization production, and particularly relates to a filter in an extraction tower and a filter system in the extraction tower used for polycaprolactam production and applying the filter. The filter in the extraction tower comprises a tubular filter screen, the tubular filter screen comprises a non-porous pipe and a filter outer pipe which are coaxially arranged inside and outside, filter holes are densely distributed in the pipe wall of the filter outer pipe, the pipe wall of the non-porous pipe is smooth and non-porous, one end of the filter outer pipe is gradually reduced to form a necking opening, and the end part of the non-porous pipe is fixedly connected with the necking opening of the filter outer pipe; and the height of the non-porous pipe is lower than that of the filtering outer pipe. The extraction tower inner filtering system comprises an extraction tower, an extraction tower inner filter is mounted on a filtering mounting pipeline of the extraction tower, and a necking opening of a filtering outer pipe is communicated with an overflow pipeline. According to the utility model, the siphonic effect is effectively reduced, the blockage of the filter is reduced, the frequent cleaning caused by the blockage of the filter is avoided, the shutdown time of an extraction procedure is reduced, and the production efficiency is improved.

The crude adipic acid thickening device provided in this embodiment of the invention features a central tube and a first porous tube that can move relative to each other. When blowing away the solid portion of the crude adipic acid slurry adhering to the outer filter screen, the central tube and the first porous tube are initially in a closed position. In this state, high-pressure gas cannot escape and remains inside the central tube, causing the pressure inside the central tube to continuously increase until a preset value is reached. Then, the central tube and the first porous tube move from the closed position to the open position. At this time, high-pressure gas is simultaneously and instantaneously released from various points on the first porous tube, blowing away the solid portion of crude adipic acid adhering to the outer filter screen. Compared to direct backflushing of high-pressure gas without accumulation, this embodiment of the invention achieves higher gas pressure inside the central tube. Furthermore, because multiple filter holes on the first porous tube open simultaneously, the pressure of the emitted gas is more uniform, resulting in a better blowing effect.

The invention relates to the field of gas-liquid uniform mixing equipment, and discloses a gas-liquid uniform mixing device for a multiphase multiphase pump, which comprises an outer shell sleeve, an outer shell and an inner shell, the outer shell sleeve is arranged on the outer wall of the upper end of the outer shell, the inner shell is coaxially arranged in the outer shell, the outer shell is provided with a baffle plate, the inner wall of the outer shell is provided with a guide plate, and the middle part of the lower end of the outer shell is provided with an extension pipe. A perforated pipe is arranged on the outer wall of the inner shell, an opening is formed in the upper end of the perforated pipe, a gap is formed between the inner wall of the perforated pipe and the outer wall of the inner shell, a plurality of jet flow holes are formed in the outer wall of the perforated pipe, and a concave pipe is arranged at the lower end of the perforated pipe and extends into the lower end of the inner shell; the spiral flow guide plate can remarkably prolong the motion path and the retention time of fluid, the jet flow holes formed in the outer wall of the porous pipe can enable a liquid phase to enter a gap between the inner wall of the porous pipe and the outer wall of the inner shell in a high-speed jet flow state, strong shearing force and a negative pressure adsorption effect are formed, and a gas phase obtained after preliminary separation is efficiently sucked into the gap; and secondary mixing of gas and liquid is realized.

The invention relates to the technical field of underground water level monitoring, and discloses a magnetostriction float type underground water level meter and an underground water level measuring method and device. Comprising a coiled pipe body, and the cross section of the coiled pipe body is provided with a central large circular hole and a plurality of small circular holes which are symmetrically distributed; a water inlet hole blocked by permeable stone is formed in the bottom of the pipe body capable of being coiled; the electronic bin is in sealed connection with the top of the pipe body capable of being coiled, the electronic bin is fixedly connected with the ground protection pipe through a tensile steel wire rope, and scale information is arranged on the surface of the tensile steel wire rope; the floater assembly is arranged in the central large circular hole and comprises a hollow floating body and a built-in permanent magnet; the waveguide sensing assembly is characterized in that a closed-loop measuring loop formed by a waveguide sensing wire and a cable is arranged in a small circular hole, and the closed-loop measuring loop generates a torsion wave signal through an excitation circuit in an electronic bin; the magnetostriction signal processing module is arranged in the electronic bin; and acquiring the extension length of the measured tensile steel wire rope, and calculating the underground water level according to the extension length and the relative displacement.

The invention discloses a combustion heating type reforming hydrogen production reactor with low heat loss, which is of a multilayer tubular communicating and wrapping structure which is coaxially and hermetically spaced, and comprises an inner perforated pipe, a surface combustor, a combustion chamber, a reforming chamber, a raw material cavity, a fuel secondary preheating cavity, a smoke exhaust chamber and a fuel primary preheating cavity which are coaxially and fixedly arranged at intervals from inside to outside. According to the low-heat-loss combustion heating type reforming hydrogen production reactor, the combustion chamber, the reforming chamber, the fuel second-stage preheating cavity, the smoke exhaust chamber and the fuel first-stage preheating cavity are integrated to serve as heat conduction components to work cooperatively, the structure is compact, the size is small, the weight is light, and compared with an electric heating reforming device, the low-heat-loss combustion heating type reforming hydrogen production reactor can achieve multi-stage preheating; heat utilization of all stages of chambers can be remarkably improved, so that heat dissipation loss and smoke exhaust heat loss are reduced to the maximum extent, meanwhile, medium and low temperature waste heat in reforming reaction products can be fully recycled, secondary waste of high-quality heat energy is reduced, the overall energy utilization efficiency of the system can be remarkably improved, and the system is particularly suitable for reforming hydrogen production.

The utility model discloses a noise reduction type pneumatic motor, which relates to the field of pneumatic motors and comprises a motor main body, an air outlet pipeline is fixedly mounted on the motor main body, a noise reduction cover is sleeved on the motor main body and consists of a first sponge sleeve and a rubber air bag sleeve, and the rubber air bag sleeve is fixedly sleeved on the first sponge sleeve. A silencer is installed on the air outlet pipeline and composed of a shell, a second sponge sleeve, a first partition plate, a second partition plate, a third partition plate, an air inlet threaded pipe, an air outlet threaded pipe and a porous pipe, the second sponge sleeve is fixedly installed on the inner wall of the shell, and the first partition plate, the second partition plate and the third partition plate are all fixedly installed on the inner wall of the second sponge sleeve; the noise reduction cover is arranged on the motor main body, the noise reduction cover adopts a dual-structure design of the first sponge sleeve and the rubber air bag sleeve, the first sponge sleeve effectively absorbs high-frequency vibration noise, the rubber air bag sleeve blocks low-frequency noise, and the overall noise during operation of the motor main body is remarkably reduced through the synergistic effect of the first sponge sleeve and the rubber air bag sleeve.

The application relates to a basement anti-seepage structure for building engineering, belonging to the technical field of basement waterproofing, which comprises a cushion layer, the upper surface of the cushion layer is rigidly cast with a concrete bottom plate, the upper side of the concrete bottom plate is provided with a water-permeable concrete layer, the upper surface of the water-permeable concrete layer is flexibly bonded with a decorative panel; an anti-seepage mechanism for preventing groundwater seepage is arranged between the concrete bottom plate and the water-permeable concrete layer, and an extraction mechanism is arranged on the decorative panel. The basement anti-seepage structure for building engineering is provided with the integrated anti-seepage mechanism between the concrete bottom plate and the water-permeable concrete layer, realizes integrated protection of resistance-conduction-drainage-monitoring, and forms a double rigid-flexible barrier together with a waterproofing membrane and a microcapsule self-repairing coating, so that the initial groundwater seepage is effectively inhibited; the drainage cushion is embedded with X / Y axial porous pipes, and is communicated with a plurality of water collecting cavities through a drip pipe, so that a grid partitioned flow guiding network is formed, and it is ensured that the seepage water is quickly captured and directionally collected.

The utility model belongs to the technical field of fluid machinery, concretely relates to a kind of anti-vibration backwater device for cooling water backwater system, including water tank and backwater pipe, the top wall of water tank is equipped with mounting port, the inside of water tank is connected by backwater pipe through mounting port;Connecting flange is installed at mounting port, the bottom of connecting flange is connected with the communicating pipe that is communicated with backwater pipe;The other end of communicating pipe is sequentially connected with elbow and gradually expanding pipe, the inner diameter of one end of gradually expanding pipe and elbow connection is less than the inner diameter of the other end of gradually expanding pipe;The other end of gradually expanding pipe is connected with porous pipe;In the application, the cross-sectional area of water flow is enlarged during gradually expanding pipe process, flow rate is reduced, kinetic energy is converted into static pressure energy;Subsequently, impact energy is further dissipated by being dispersed into multiple streams through porous pipe;In this way, the problem of vibration and noise of water tank caused by high flow rate water flow in recovery pipeline is solved.

This utility model discloses a MET composite ecological treatment component, including a box and, from top to bottom, a layer of anthracite, a layer of quartz sand, a layer of magnetite sand, an activated carbon layer, and an adsorption chamber arranged in sequence within the box. Sliding grooves are provided on the left and right sides of the inner wall of the box, and sliding strips are provided on both sides of the adsorption chamber, slidingly engaged within the sliding grooves. An openable side door is also provided on the front side of the box for the adsorption chamber to slide out of the box. The adsorption chamber includes several concentrically arranged annular drainage zones and annular adsorption zones. The annular drainage zone includes several circumferentially arranged UPVC porous pipes, the upper end of which is connected to the outlet of the inlet hopper, while the lower end is closed. Several drainage holes are provided on the sidewalls of the UPVC porous pipes. The annular adsorption zone includes several circumferentially arranged lanthanum-loaded resin adsorption columns that adsorb and separate phosphate ions from the wastewater flowing out of the drainage holes.

The utility model provides a kind of new feed water pump circulation pipe structure for deaerator, belong to deaerator technical field.The deaerator circulation pipe of traditional single pipe structure is solved when the output of unit increases, the problem of excessive noise and vibration and impact of the internal components of deaerator due to the increase of circulating water quantity.It includes double-layer sleeve pipe, upper cover plate and lower supporting plate, the double-layer sleeve pipe includes porous pipe and energy dissipation device cylinder, the energy dissipation device cylinder is coaxially sleeved outside the porous pipe, the pipe wall of the porous pipe and energy dissipation device cylinder is provided with through hole, the top end of the porous pipe and energy dissipation device cylinder is connected with upper cover plate, the bottom end of the energy dissipation device cylinder is connected with lower supporting plate, the center of the lower supporting plate is provided with round hole, the bottom of the porous pipe is provided with extension pipe, the extension pipe penetrates lower supporting plate, penetrates deaerator cylinder and extends to outside after penetrating lower supporting plate.It is mainly used as the circulation pipe of deaerator.

A refrigeration device (10) includes: a first refrigerant circuit (21) including a first heat exchanger (26) that dissipates heat from a first refrigerant, the first refrigerant being carbon dioxide; a second refrigerant circuit (22) including a second heat exchanger (36) for dissipating heat from a second refrigerant having combustibility or toxicity or a second refrigerant having a global warming coefficient of 4 or more, and a pressure reducer (38) for reducing the pressure of the second refrigerant; and a third heat exchanger (27) that exchanges heat between the first refrigerant after heat dissipation in the first heat exchanger (26) and the second refrigerant after heat dissipation in the second heat exchanger (36) and after pressure reduction in the pressure reducer (38), the second heat exchanger (36) having a plurality of flat perforated pipes (36b).

The application discloses a kind of ring flow coupling separators, oil-water separation and liquid-solid separation equipment, system and application, comprising: emulsion separation membrane assembly is located in the flow guide cylinder of flow guide cylinder assembly, is arranged in the vertical direction of flow guide cylinder;The bottom of emulsion separation membrane assembly is communicated with liquid collecting pipe, to collect the oil-water mixture after demulsification in emulsion separation membrane assembly into liquid collecting pipe, porous pipe is located in flow guide cylinder, and is provided with several water inlets, the outer surface of porous pipe is wrapped with hydrophilic oleophobic fiber membrane, water is gathered into porous pipe through water inlet, and separates out separator;Oil collection tank is located in the upper part of flow guide cylinder, and light oil in oil-water mixture is gathered into oil collection tank and separated out ring flow coupling separator;Oily sewage and oil-water mixture in liquid collecting pipe and demulsification gas are mixed, to flush the solid gathered on the surface of emulsion separation membrane assembly and porous pipe, so that solid is gathered to the bottom of ring flow coupling separator and discharged, improve oil-water separation and liquid-solid separation efficiency.

The invention provides a perforated pipe in a reciprocating compressor buffer, which comprises a cylindrical pipe section and a conical pipe section, and the cylindrical pipe section is used for being fixed on the buffer and penetrating through the inside and the outside of the buffer; the conical pipe section is located in the buffer, a plurality of inclined holes are formed in the conical pipe section and distributed in the conical pipe section, and the center lines of the inclined holes are obliquely arranged in the circumferential direction of the conical pipe section and located in the plane perpendicular to the center line of the conical pipe section; wherein the axial lead of the conical pipe section and the central line of the cylindrical pipe section are on the same straight line, and the small end of the conical pipe section is fixedly connected with the end part of the cylindrical pipe section. Compared with the prior art, according to the scheme, through the structure that the cylindrical pipe section and the conical pipe section are combined and the inclined holes are formed at specific angles, airflow pulsation in a compressor pipeline can be reduced in multiple directions, airflow in the buffer can be searched in a targeted mode, and therefore the airflow pulsation in the compressor pipeline is weakened to be within the range required by production safety.

The utility model relates to an MJS pile machine capable of preventing a mud discharge port from being blocked, which comprises a mud treatment port, a mud box, a mud discharge pipe arranged in a perforated pipe, a pressure detector arranged at the lower half part of the perforated pipe, a mud discharge port arranged on the upper side surface of the pressure detector, a high-pressure cement slurry spraying device arranged on the lower side surface of the pressure detector, and a pipe groove arranged in the perforated pipe and close to one side of the mud discharge port, a cleaning box is arranged at the bottom of the pipe groove, a cleaning assembly is arranged in the cleaning box, and a filtering structure is installed on the outer side of the sludge outlet. Slurry entering the mud discharging pipe is limited through the filtering structure, the situation that mud or other large impurities block the mud discharging pipe and affect the using effect and the service life of the MJS pile machine is avoided, the cleaning assembly is used for cleaning the mud accumulated on the filtering structure, and normal operation of the device is facilitated.

The utility model discloses a big diameter bed body cloth water device belongs to water treatment field, including upper jar body, the inside horizontal connection of upper jar body has the integration cloth water board, is provided with resin conveying support pipe vertically on upper jar body, the bottom end vertical perpendicular of resin conveying support pipe passes through cloth water board, and resin conveying support pipe is fixedly connected between cloth water board, the bottom end of resin conveying support pipe is provided with the porous pipe, replaces traditional spliced board through the setting integration whole board design, has promoted the structural strength and rigidity of porous board, can evenly dispersed stress, reduces deformation, resin leakage etc.

The present application relates to a kind of preparation methods of low-density heat-proof material internal thread.The method: processing thread hole bottom hole in low-density heat-proof material layer;Bottom hole seepage pipe with porous wall is installed in thread hole bottom hole, then structural strengthening resin is injected into bottom hole seepage pipe and penetrates to low-density heat-proof material layer through the porous wall of bottom hole seepage pipe;The low-density heat-proof material layer after the above processing is solidified, then tapping device is used to tap out heat-proof layer thread in thread hole bottom hole;Thread seepage pipe with porous wall is installed in thread hole bottom hole, then structural strengthening resin is injected into thread seepage pipe and penetrates to the thread of heat-proof layer thread through the porous wall of thread seepage pipe, then solidification and thread finishing are carried out, thus the preparation of low-density heat-proof material internal thread is completed.The present application solves the problem of low-density heat-proof material with low strength, which cannot be shaped into effective thread, and meets the purpose of low-density heat-proof material thread connection.

The invention relates to the technical field of heat transfer equipment, and discloses a preparation method of a surface perforated pipe, which comprises the following steps: carrying out surface pretreatment on a base pipe; mixed powder is electrostatically sprayed on the surface of the base tube to form a powder layer, and the mixed powder is metal powder wrapped with a curing agent; and the base tube with the powder layer formed on the surface is heated and cured, so that a porous metal layer is formed on the surface of the base tube. The preparation method of the surface porous pipe comprises the following steps: carrying out surface pretreatment on a base pipe to remove an oxidation film, impurities and the like on the surface of the base pipe; mixed powder is sprayed on the surface of the base tube in an electrostatic mode, the mixed powder is evenly adsorbed on the surface of the base tube under the action of electrostatic attraction force, and use of volatile solvents is avoided; and then the base tube with the powder layer formed on the surface is heated and cured, it is ensured that the metal powder and the base tube have enough binding force, the curing agent is burnt out in the heating and curing process, and therefore the porous metal layer is formed on the surface layer of the base tube.

The utility model relates to the field of component processing, in particular to an electronic component processing workbench which comprises a workbench body, a panel is installed on the outer wall of the top of the workbench body, an operation groove is formed in the center of the outer wall of the top of the panel, and air holes are formed in the positions, located at the two ends of the operation groove, of the panel. Cleaning structures are arranged at the top of the workbench and the bottom of the panel, and adjusting assemblies are arranged at the four corners of the outer wall of the bottom of the workbench; the cleaning structure comprises perforated pipes installed on the outer wall of the panel and located at the air holes, a conveying pipe connected to one end of one perforated pipe, a connecting pipe connected to one end of the other perforated pipe and a fan installed on the outer wall of the top of the workbench. After the draught fan is started, air in the operation groove is extracted through the exhaust pipe, the collecting box, the connecting pipe and the perforated pipes, one perforated pipe blows air, the other perforated pipe sucks air, chippings and smoke in the operation groove are treated in a multiple mode, and influences on personnel are avoided.

The invention provides a ventilation type waste heat recovery system for internal heat energy of a gangue dump, relates to the technical field of waste heat recovery, and solves the technical problems that waste heat resources are wasted due to oxidation heating and long-term internal high temperature of the gangue dump in the prior art. The waste heat recovery device comprises a waste heat recovery assembly, a waste heat collection assembly and a heat supply pipeline assembly, a porous pipe ditch is formed in the gangue dump, the waste heat collection assembly is arranged in the porous pipe ditch, and the output end of the waste heat collection assembly penetrates out of the gangue dump to be communicated with the recovery end of the waste heat recovery assembly; the output end of the waste heat recovery assembly is in heat exchange connection with the heat supply pipeline assembly.

The present application relates to a kind of soil and groundwater remediation system and method, system includes remediation medium conveying device, remediation medium injection device and groundwater extraction dynamic sensing device;Remediation medium conveying device includes medicament delivery unit and compressed air delivery unit;Remediation medium injection device includes pressure hose, porous pipe and propelling injector, pressure hose one end is connected medicament delivery unit and compressed air delivery unit, the other end is connected propelling injector, porous pipe is inserted into the contaminated underground soil layer area to be repaired, propelling injector is arranged in porous pipe;Groundwater extraction dynamic sensing device includes groundwater extraction well, dry contact liquid level meter and integrated online detection control cabinet.Compared with prior art, the present application realizes soil groundwater in-situ medicament injection repair, aeration repair and other multi-method switching, can dynamically perceive groundwater quality and hydrogeological condition, realizes the balanced circulation repair of soil and groundwater.

This utility model relates to the field of silencer technology and discloses a carbon fiber silencer, comprising: an inlet pipe, a front cover, a middle isolation cover, a middle noise transmission pipe, a tail cover, an outlet pipe, a rear sound transmission porous pipe, a front sound transmission porous pipe, a sound-absorbing material, and an outer shell; one end of the front sound transmission porous pipe is inserted into an inner convex ring on the front cover, and the other end is inserted into a convex ring on one side of the middle isolation cover; one end of the rear sound transmission porous pipe is inserted into a convex ring on the other side of the middle isolation cover, and the other end of the rear sound transmission porous pipe is inserted into an inner convex ring on the tail cover; the outer shell is cylindrical, with one end inserted into an outer convex ring on the front cover and the other end inserted into an outer convex ring on the tail cover; the porous structure on the front and rear sound transmission porous pipes can reflect and scatter sound waves, effectively enhancing the sound wave resistance and weakening effect of the inner wall of the cylinder, thereby meeting the noise reduction requirements of the air compressor.

Current fine bubble (FB) generators fall under broad categories such as microbubble (MB) or ultrafine bubble (UFB). The optimal bubble size depends on the application. Just as MB and UFB each have their advantages, there are differences in characteristics depending on the size of the MB bubbles. Further classification may be necessary depending on the application. Additionally, increasing the concentration of the FB water may be required. [Solution] In a method for generating high-concentration fine bubble (FB) water, the fine bubble water generation device uses an FB water generator in a porous pipe housed in a sealed gas pipe. Various gases, such as air, are supplied to the sealed gas pipe at high pressure. This provides the FB sealing gas, significantly increasing the pressure difference between the inside and outside of the porous pipe. The size of the bubbles that permeate is controlled by the permeability coefficient determined by the porous structure (porosity, pore size). Multiple FB water generators with different permeability coefficients are prepared. Furthermore, this method significantly increases the concentration of FB water.

The MET ecological material integrated equipment comprises a box body, an intercepting chamber, a filtering chamber and an adsorption chamber, the intercepting chamber, the filtering chamber and the adsorption chamber are sequentially arranged from top to bottom and communicated in the box body, and the intercepting chamber comprises a plurality of intercepting grating sets which are arranged in the height direction and used for intercepting large-particle impurities. The filtering chamber is used for removing suspended solids and colloids, the adsorption chamber comprises a plurality of annular water dispersing areas and annular adsorption areas which are in a concentric ring shape and are arranged at intervals, a water inlet hopper is arranged below the filtering chamber, and the annular water dispersing areas comprise a plurality of UPVC perforated pipes arranged in the circumferential direction; an upper end pipe opening of the UPVC perforated pipe is communicated with the water outlet end of the water inlet hopper, a lower end pipe opening of the UPVC perforated pipe is in a closed state, a plurality of water dispersing holes are formed in the pipe side wall of the UPVC perforated pipe, and the annular adsorption area comprises a plurality of lanthanum-loaded resin adsorption columns which are arranged in the circumferential direction and used for adsorbing and separating phosphate radical ions in sewage flowing out of the water dispersing holes.

The invention discloses deep pollution in-situ suction-injection-stirring integrated curing equipment and a construction method thereof, and the equipment is characterized in that the equipment comprises a porous pipe drill rod and a suction-injection-stirring integrated drill bit; a water injection hole, a grouting hole, a reverse water suction hole, a reverse mud discharge hole and a high-pressure air hole are formed in the porous pipe drill rod in the axial direction of the porous pipe drill rod. The method has the advantages that the deep polluted soil (such as below 10m) can be directly solidified, different-position excavation is not needed, and the problems of large excavation depth, high cost and high safety risk are solved. Secondary pollution can be avoided, a negative pressure system formed by the inverted mud suction nozzle and the inverted mud hole can suck polluted mud generated by drilling and stirring in real time, the polluted mud is stored in an external device, and the situation that the mud overflows out of the ground to cause secondary pollution is effectively prevented. The equipment is simple in structure and good in economical efficiency, compared with a pure stirring process, disturbance to non-polluted soil and the dosage of curing agents are reduced through high-pressure cutting and precise grouting, meanwhile, the construction efficiency is improved through integrated operation, and the comprehensive cost is reduced.

The present application relates to mushroom planting technical field, and discloses a kind of mushroom warehouse partition even wind air supply box structure, including mushroom house, the side of mushroom house is provided with air supply duct for conveying airflow, air supply duct is connected with the porous pipe for air outlet to mushroom house, air supply duct is provided with even wind adjusting mechanism, even wind adjusting mechanism includes air guide mechanism, the side of air guide mechanism is provided with honeycomb rectifier mechanism, the side of honeycomb rectifier mechanism is provided with venturi adjusting mechanism, venturi adjusting mechanism below is provided with pneumatic adjusting mechanism.The technical scheme of the present application combines airflow straightening, flow regulation and end self-adapting multiple functions by pneumatic adjusting mechanism as a unified control hub, when diaphragm senses venturi throat static pressure change, synchronously drive adjusting piston to move to change closed air cavity pressure, and pass through pneumatic pipeline to transfer pressure signal to executing mechanism in mushroom house, drive outer sleeve pipe sliding adjustment porous pipe air outlet area.

The invention relates to the technical field of basement waterproofing, in particular to an anti-seepage structure for a constructional engineering basement, which comprises a cushion layer, a concrete bottom plate is rigidly poured on the upper surface of the cushion layer, a pervious concrete layer is arranged on the upper side of the concrete bottom plate, and a decoration panel is flexibly adhered to the upper surface of the pervious concrete layer; an anti-leakage mechanism for preventing underground water from leaking and an extraction mechanism arranged on the decoration panel are arranged between the concrete bottom plate and the pervious concrete layer. According to the anti-seepage structure for the basement of the constructional engineering, the integrated anti-seepage mechanism is arranged between the concrete bottom plate and the pervious concrete layer, integrated protection of blocking, guiding, discharging and monitoring is achieved, the waterproof coiled material and the microcapsule self-repairing coating jointly form a dual rigid-flexible barrier, and initial seepage of underground water is effectively restrained; x / Y axial porous pipelines are embedded in the drainage pad and are communicated with a plurality of water collecting cavities through weeping pipes, so that a gridding partition flow guide network is formed, and it is ensured that leaked water is rapidly captured and directionally collected.

The device, equipped with a screen and the like, removes sediment that accumulates on the seabed below it without dispersing the sediment. [Solution] The dust removal device 1 includes a dust removal screen 20 positioned in the waterway 11 to capture impurities in the flowing water, and a device body 2 that removes impurities from the waterway 11 while capturing them with the dust removal screen 20, and a sand removal device 4 that includes a perforated pipe 40 having a plurality of openings 42a and positioned below the device body 2 along the bottom wall surface 11b of the waterway 11, and performs sand removal processing by sucking up sediment accumulated on the bottom wall surface 11b through the openings 42a and removing it through the perforated pipe 40.