2556 results about "Guide tube" patented technology

A wire guide module for an ultrasonic wire bonder, comprising a body made of a thermally stable metallic and / or ceramic material, wherein an elongated wire feed-through channel having a wire inlet opening and having a wire outlet opening is provided on the body, and comprising a guide tube provided in the wire feed-through channel. In addition, the invention relates to a thermosonic wire bonder having a wire guide module.

The invention relates to a complex soft rock double-layer primary supporting super-large section tunnel and a construction method. The complex soft rock double-layer primary supporting super-large section tunnel comprises a long pipe shed cover arch supporting system, a deformation control strong supporting structure, an anti-disengaging early-warning lining pouring trolley, a temporary inverted arch deformation control structure and a buffering yielding supporting system. The method has the beneficial effects that the curved surface formwork can be rapidly installed on the upper portion of the guide pipe and the lower portion of the steel arch frame, the installation efficiency is high, stability is good, and the construction period is shortened; a long pipe shed and a small guide pipe penetrate through the deformation control strong supporting structure and are driven into a tunnel, grouting is conducted, the overall stability of the supporting structure is enhanced, and the complex soft rock geology is reinforced; concrete pouring is monitored in real time, and the compactness of vault concrete is guaranteed; section steel is clamped in the inverted arch, reinforcing connecting ribs are welded between the section steel in a penetrating mode, surrounding rock collapse is prevented, and tunnel construction safety is guaranteed. And a buffer yielding support device is arranged between the interface and the double-layer arch frame, so that the pressure at the interface of the layered rock and soil stratum is in smooth transition, and the overall balance is improved.

The utility model provides a straightening machine vertical roll mounting structure which comprises a mounting seat, a vertical roll and a vertical roll shaft. The mounting seat is detachably connected with the sliding plate; the sliding plate is installed on the inner side of the guide pipe, a strip-shaped hole corresponding to the installation base is formed in the guide pipe, the installation base is installed on the inner side in the strip-shaped hole, and the guide pipe is fixedly connected with the support; and the driving assembly is used for driving the sliding plate to move. The steel billet straightening device has the advantages that the positions of the vertical rollers and the distance between the two vertical rollers are adjusted through the driving assembly, the steel billet straightening device can still be continuously used by adjusting the positions of the vertical rollers after the vertical rollers are abraded, the steel billet straightening device is suitable for straightening operation of steel billets of different models, the application range is widened, and the wire conduit plays a guiding role; and the moving process of the sliding plate is more stable, and the sliding plate can be prevented from shaking.

The invention relates to the technical field of oil and gas field and coal bed gas field mining equipment, in particular to a wellhead suspension centrifugal pump drive double-pipe jet flow drainage and mining device and a using method. According to the technical scheme, a lower tubing head four-way joint, a middle tubing head four-way joint and an upper tubing head four-way joint are sequentially installed on a bottom flange, a motor is installed on the upper portion of the upper tubing head four-way joint, and an inner pipe plug-in pump core catcher is installed at the lower end of a submersible water injection centrifugal pump; the lower end of the inner pipe inserted pump core catcher is movably connected with an inner layer oil pipe, and a pump core installed in the double-pipe jet pump is arranged in a pump cylinder of the jet pump. The device has the advantages that due to the fact that a packer is omitted and the device is connected with the double-pipe jet pump, sand-containing liquid in a well can be sucked, and exploitation of natural gas or coal bed gas can be achieved; the inner pipe is inserted into an elastic clamping jaw of the pump core catcher to catch the pump core; and the submersible water injection centrifugal pump and the pump core can be lifted to the ground at one time by hoisting the motor at a ground wellhead, so that the maintenance is convenient.

The invention relates to the technical field of oil and gas field development and production, and discloses a rapid detection device and method for oil and gas well tubular column sealing thread damage injection agent repair, and the device comprises a pressurization mechanism, a pressure container and a thread damage assembly; the pressurizing mechanism comprises a liquid supply assembly, a manual hydraulic pump and a pipeline assembly, the liquid supply assembly is installed on the manual hydraulic pump, and the pipeline assembly is installed at the output end of the manual hydraulic pump; the pressure container comprises a sealed container and a piston, the piston is slidably connected to the inner side wall of the sealed container, and the bottom of the sealed container communicates with the pipeline assembly; the thread damage assembly comprises a conduit assembly, a pressure gauge and an external plug; the conduit assembly is communicated with the top of the sealed container; the external plug is in threaded connection with the end, away from the sealed container, of the guide pipe assembly. According to the invention, two states of thread slippage and damage leakage can be simulated, and downhole conduit thread leakage simulation and rapid detection of chemical injection agent repair are realized.

The utility model discloses an automatic packaging dust collection device, which relates to the technical field of flaking dust collection towers, and comprises a hopper, the bottom of the hopper is fixedly connected with a rack, an annular pipe is fixedly connected with the inner wall of a blanking pipe, a guide pipe is communicated with a dust collector assembly, and raised dust is adsorbed by the annular pipe when materials are blanked. Dust enters a connecting pipe through an annular pipe and then enters a dust collector assembly through an auxiliary part and a guide pipe, the influence of dust escaping on the surrounding environment is reduced, resource waste is reduced, during discharging, a packaging bag is clamped by a clamping plate, the bottom of the packaging bag is supported by a supporting plate, and the stability of the packaging bag in the using process can be improved; the second gear drives the first gear to rotate, the first gear drives the rack to move left and right, through synchronous movement of the scraping plate and the rack, sweeping of the top of the auxiliary plate can be achieved, materials enter the collecting box to be collected, follow-up recycling of the materials is facilitated, and waste of the materials is reduced.

The utility model discloses a guide cylinder structure adopting a blasting deicing mode, and relates to the technical field of blasting deicing, a detonation filler is arranged in a blasting guide cylinder, an electric ignition structure is provided with an ignition structure corresponding to the detonation filler, and a lower buffer protection pad is installed at the position, corresponding to a blasting assembly, of a lower clamping frame. And a V-shaped groove is formed in the lower buffer protection pad. According to the blasting deicing principle, based on a high-strength blasting guide cylinder, impact force instantly released during combustion of detonation filler serves as source power for vibration deicing of the overhead cable, a lower buffering protection pad serves as a primary protection structure of the overhead cable, and particularly, a V-shaped groove is obtained through optimization and improvement in the lower buffering protection pad; the blasting guide cylinder is used for fully clamping the overhead cable, and the key point is that a staggered clamping position between the blasting guide cylinder and the overhead cable is used for avoiding direct damage to the overhead cable caused by blasting impact force on one hand, facilitating the separation process between the blasting guide cylinder and the overhead cable on the other hand, and particularly improving the deicing efficiency.

The utility model relates to the technical field of steel rolling guide and guard assemblies, in particular to a steel rolling guide and guard assembly with a positioning mechanism, which comprises a base, a mounting block is arranged at the bottom end of the base, a guide and guard assembly body is arranged at the bottom of the mounting block, a guide pipe is arranged on one side of the guide and guard assembly body, and a mounting plate is arranged on the other side of the guide and guard assembly body. When the guide and guard assembly body needs to be installed, the connecting blocks on the two sides of the bottom end of the guide and guard assembly body are directly inserted into the connecting grooves of the fixing blocks, then the rotary knobs are rotated through a tool, the rotary knobs can drive the two-way screw rods in the installing grooves to rotate, meanwhile, the two-way screw rods can drive the movable blocks, the movable plates are pushed through the movable blocks and the rotary connecting rods, and the guide and guard assembly body is installed. And the movable plate drives the clamping block to enter the clamping groove in one side of the connecting block, so that the connecting block is fixed, the mounting stability of the guide and guard assembly body is ensured, the guide and guard assembly body is mounted without a plurality of bolts, the mounting efficiency is higher, the labor intensity is reduced, and the practicability is higher.

The invention relates to the field of underground engineering construction, and discloses a hole wall cleaning device for rapid hole sealing after coal mining and a hole sealing method.The hole wall cleaning device comprises two guide pipes, each guide pipe is provided with a rear plug located at an opening of the hole wall for sealing, the two rear plugs are both arranged on the right side of the guide pipe, and a wooden plug head is detachably installed at one end of one guide pipe; one end of the other guide pipe is fixedly connected with a tamping head, the other end of the other guide pipe is slidably or fixedly connected with a pulling end, the water pumping pipe extends to the left end of the guide pipe and is communicated with an opening for draining water, and a water conveying pipe is slidably arranged in the guide pipe and extends into the cleaning assembly. After the straight sleeve and the rotating sleeve move in one direction through water supply of the water supply pipe, the other face is blocked by the adjusting sleeve through impact, the inner wall of the adjusting sleeve is hung through the scraping ring, and the effects of washing the inner wall and moving the cleaning sleeve are achieved through the inclined spray head and the rotating sleeve in use.

A material changing mechanism and 3D printing system for a 3D printer are disclosed. The material changing mechanism includes: a support frame; a material guiding unit mounted on the support frame, the material guiding unit including multiple sub-material guiding tubes and material guiding ports communicating with the multiple sub-material guiding tubes, the material guiding ports being used to engage with the main feed tube of the 3D printer; and multiple material changing units mounted on the support frame. This allows for the automatic provision of multiple feed lines to the 3D printer according to printing needs and facilitates easy replacement of the feed tray.

The invention belongs to the related technical field of ocean engineering, and discloses a horizontal ice drilling transmission mechanism based on a flexible shaft, which comprises a drill bit assembly, the flexible shaft, a sleeve joint chain, an upper end joint assembly, a lower end joint assembly and a guide pipe, the sleeve joint chain is formed by hinging a plurality of sleeve joints end to end through pin shafts and is accommodated in the guide pipe; a channel used for guiding and restraining the sleeve joint chain is arranged in the guide pipe. The flexible shaft is arranged in an inner cavity of the sleeve joint chain in a penetrating mode. The upper end of the flexible shaft is connected with an external rotation driving device through an upper end connector assembly. The upper end of the sleeve joint chain is connected with an external lifting driving device through an upper end connector assembly. The whole transmission mechanism is compact in structure and small in radial size, the space of a small-diameter vertical ice hole can be fully utilized, and large-depth drilling from the vertical direction to the horizontal direction is achieved; and a more stable and efficient drilling process can be realized, and the requirements of different ice layer hardness and drilling depth are met.

The invention relates to the technical field of agricultural machinery and auxiliary equipment, and discloses a precise seedling dropping device of an unmanned aerial vehicle. A seedling carrying plate is arranged on the rack, and a seedling throwing opening is formed in the seedling carrying plate; the seedling supply mechanism is arranged on the seedling carrying plate and comprises a seedling pipe frame, and a plurality of seedling storage pipes are arranged on the seedling pipe frame; the control system is fixed at the bottom of the seedling carrying plate and comprises a driving mechanism and a transmission shaft connected with the driving mechanism, and the transmission shaft is connected with the seedling pipe frame to drive the seedling supply mechanism to rotate; when the seedling storage pipe is driven to rotate to be aligned with a seedling throwing opening in the seedling carrying plate, seedlings stored in the seedling storage pipe in advance fall to the seedling guide mechanism; the seedling guide mechanism comprises a guide pipe and a branch pipe, one end of the branch pipe is communicated with the seedling throwing opening, the other end of the branch pipe is communicated with the guide pipe, and the guide pipe is arranged at the bottom of the seedling carrying plate and used for guiding seedlings to be vertically and downwards thrown; the air blowing mechanism is fixed to the rack and used for providing downward airflow for the guide pipe. The precise seedling dropping device of the unmanned aerial vehicle can realize single-plant fixed-point precise dropping.

An ear tip assembly structure includes a housing, a sound guide tube, and an elastic support. The sound guide tube is disposed inside the housing and extends out of the housing. The elastic support is disposed inside the sound guide tube and includes a snap fastener and an elastic arm. The elastic arm is connected to the snap fastener and is bent in a vertical direction. The snap fastener extends out of the sound guide tube to engage with an ear tip.

The invention provides a laser wire and powder collaborative additive manufacturing paraxial wire feeding equipment fixing device which comprises a fixing mechanism, a rotating mechanism, a wire twisting mechanism and a shielding gas mechanism, the fixing mechanism comprises a laser head and a clamping plate, a powder spray head is arranged at the laser head, and a molten pool for laser fusion of metal wires is arranged below the laser head and the powder spray head; the rotating mechanism comprises a connecting block and a rotating shaft, the connecting block is fixedly connected to one side of the clamping plate, the rotating shaft is rotationally connected with the connecting block, and a rotating shaft sleeve is arranged on the rotating shaft; the wire twisting mechanism comprises a wire feeding pipe, a wire twisting pipe and a wire guiding pipe which are communicated in sequence, the wire twisting pipe is fixedly connected with the rotating shaft sleeve, and a wire twisting cavity is formed in the wire twisting pipe; the protective gas mechanism comprises a cavity block and a connecting pipe, the cavity block is connected with the clamping plate, and the connecting pipe is used for connecting a protective gas bottle. Compared with the prior art, according to the scheme, the contact angle of the powder spray head of metal powder and the metal wire and the melting angle of laser and the metal wire can be adjusted, and then the forming quality of a metal component is guaranteed.

A wheel suspension for a vehicle includes: - a guide tube (10) that can be mounted on or is mounted on a vehicle chassis in an operating position or is permanently connected to or belonging to a vehicle chassis and assumes the operating position, which in its operating position has a guide tube axis extending vertically or inclined relative to a vertical direction according to a nominal guide tube angle with respect to a vehicle standing on a horizontal flat surface; - a wheel fork (3) having two fork legs (4), which is mounted on the vehicle chassis at least at one bearing area at least by means of the guide tube (10) in its operating position; - Bearing devices at free end areas of the fork legs for the rotary bearing of a wheel (2) between them. It is proposed that the wheel fork (3) is or can be mounted in a relatively movable manner radially outside on the guide tube (10) by means of its bearing area (5, 6).

The invention belongs to the technical field of furnace heat exchange, and discloses a hot water module furnace heat exchanger capable of recovering flue gas heat, which comprises a heat exchange box and further comprises a flue gas recovery heat exchange assembly arranged on the heat exchange box. Flowing water is introduced into the heat exchange box and the second guide pipe through the water inlet assembly, flue gas flows along the flue gas flow channel formed between the first guide pipe and the second guide pipe, and the section of the flue gas flow channel formed between the first guide pipe and the second guide pipe is in a sawtooth shape in the flowing process; due to the fact that the temperature of the smoke generated by natural gas combustion ranges from 150 DEG C to 300 DEG C, heat of the smoke is conducted to water in the heat exchange box and water in the second guide pipe through the first guide pipe and the second guide pipe, the water is heated by recycling the heat of the smoke, effective utilization of the smoke is improved, and the utilization rate of the smoke is increased. And the energy-saving potential of gradient utilization of energy is fully exerted.

The invention provides a drilling operation method adopting a pipe shed drilling machine, and belongs to the technical field of drilling operation of drilling machines. Initial positioning deviation is controlled through three-dimensional positioning calibration of a guide pipe and a space stabilization structure, drilling track deviation correction is achieved through real-time monitoring of a hole inclination angle and an eccentric drilling tool; the method comprises the following steps: dynamically adjusting drilling parameters according to a geological radar detection lithology type, establishing a slurry seepage diffusion fluid-solid coupling model to calculate a slurry diffusion radius and a filling rate, establishing a double-layer game optimization model to solve a Nash equilibrium point of grouting pressure and a slurry water-cement ratio, and adopting double-slurry pre-plugging combined with superfine cement reinforcement for a fracture zone. A drill rod and stratum interaction finite element model is established to recognize the dangerous section position, and a stabilizer or a thickened drill rod is additionally arranged, so that the technical problem that grouting reinforcement parameters and drilling track control precision are difficult to optimize synchronously in the pipe shed drilling process is solved.

The invention discloses a thin-wall acoustic part injection molding device based on a hot runner, and belongs to the technical field of injection molds. Comprising an injection mold, a fixed mold mechanism, a discharging mechanism and a runner assembly, linkage is formed between a hot runner system of the runner assembly and inclined structures of an injection mold, a fixed mold mechanism and a discharging mechanism, on-off injection molding heads achieve on-demand on-off of molten materials, cold material residues are avoided, a spherical structure in the middle of a flow guide pipe head optimizes a molten material flowing path, a driving part accurately controls a ball core valve head to rotate, it is ensured that on-off of the molten materials is switched in time, and the service life of the molten materials is prolonged. The melt entering the cavity is always in a proper temperature state; and meanwhile, the inclined structure assists the melt in flowing in the inclined direction under the action of gravity, the filling resistance of the tail end of the thin-wall cavity is greatly reduced, it is guaranteed that the melt is rapidly and evenly filled in the cavity, the part is guided to directionally slide down after demolding, follow-up collection is facilitated, and comprehensive optimization of the filling quality, the production efficiency and the energy consumption cost is achieved.

A wheel suspension for a vehicle comprises: - a guide tube (10) which assumes an operating position and, in the operating position, can be mounted or is mounted on a vehicle chassis or is fixedly connected thereto or is part thereof and which has, in the operating position on or as part of the vehicle chassis with respect to a vehicle standing on a level horizontal underlying surface, a guide tube axis extending vertically or at an incline with respect to a vertical direction in accordance with a target guide tube angle; - a wheel fork (3) which has two fork blades (4) and is mounted on the vehicle chassis in at least one mounting region at least by means of the guide tube (10) in the operating position thereof; and - mounting devices, at free end regions of the fork blades, for rotatably mounting a running wheel (2) between the fork blades. According to the invention, the wheel fork (3) is relatively movably mounted or can be relatively movably mounted radially outside on the guide tube (10) by means of the mounting region (5, 6) of the wheel fork.

The utility model discloses a plastic particle drying device which comprises a conveying belt frame, a conveying belt is fixedly connected between the conveying belt frame, a drying box is fixedly connected to the upper portion of the conveying belt frame, a feeding pipe is fixedly connected to one side of the upper portion of the drying box, and two sets of first rotating shafts are rotationally connected to the middle of the lower side of the feeding pipe. A rotating piece is fixedly connected to the outer side of the first rotating shaft, a guide pipe is fixedly connected to the lower portion of the rotating piece, an inclined table is fixedly connected to the inner side of the feeding pipe, a third rotating shaft is rotatably connected to the interior of the lower side of the drying box, and a tiling plate is fixedly connected to the outer side of the third rotating shaft; plastic particles needing to be dried can be evenly distributed on the conveying belt, the spreading thickness of the plastic particles can be controlled, and it is guaranteed that the plastic particles can be evenly dried.

The utility model relates to the technical field of melt spinning, in particular to PBT elastic fiber melt spinning equipment which comprises a machine body, a melt extruder installed on the surface of the machine body, a feeding port formed in the melt extruder, a spinning nozzle arranged on the inner wall of the machine body, a cold air chamber arranged on the inner wall of the machine body, and an auxiliary shaft and a collecting shaft arranged on the surface of the machine body. The surface of the machine body is provided with a channel, the surface of the feed port is provided with an auxiliary device, and the auxiliary device comprises a box body fixed on the surface of the feed port. By arranging the auxiliary device, during feeding, the intercepting net can intercept larger raw materials, and the driving part is matched with the two crushing rollers to crush the raw materials in the crushing chamber; and then the raw materials enter the feeding opening through the material guide pipe to be discharged, so that all the raw materials entering the melt extruder are not too large, the raw materials can be molten more sufficiently and more uniformly during heating and melting, a good melt foundation is provided for high-quality spinning, and the overall practicability is improved.

The invention provides a method for inserting a yarn into a spinning position of a spinning machine, in particular a rotor spinning machine, comprising: picking up the yarn from the surface of a bobbin while inserting the yarn into a feeding device located at the yarn picking-up position; moving the feeding device into which the yarn is inserted from the yarn pickup position to a yarn conveying position; the yarn is cut to form yarn ends, and the yarn ends are sucked into a yarn guide pipe or an open-end spinning nozzle of a spinning position to be connected. According to the invention, the yarn can be directly conveyed to the opening of the yarn guide tube or the open-end spinning nozzle from the yarn tube only through one-time movement of the feeding device, and then the yarn is cut; the prepared yarn ends are connected directly in the yarn guide tube or the air-jet spinning nozzle by means of compressed air.

A valve device comprises a valve body with a framework and a valve portion coupled to the framework that is movable between open and closed positions. The framework comprises a plurality of wire portions. The valve portion may be formed of a material that promotes in-growth of native tissue so that the valve portion cooperates with native valve leaflets. The valve device also comprises one or more anchors and anchor tethers that secure the valve device in a heart. In some examples, the method includes folding and loading the valve body into a valve cartridge, delivering the valve body through a guide tube to a position the valve body at a target positioned within the heart, pushing the valve body out of the guide tube, and secure the anchors and anchor tethers in the heart, and cutting the anchor tethers to remove excess portions.

A toxic ammonia gas absorption system for a liquid ammonia fuel ship, comprising a toxic ammonia gas release source (100), an ammonia gas absorption tank (200), an ammonia gas guide pipe, and a diluted ammonia gas discharge pipe. The ammonia gas absorption tank (200) is provided with an absorbent (201), a gas diffusion layer (202), a liquid level switch (203), a gas phase space (206) and a temperature control device (207). The present system can improve the safety, environmental friendliness and economy of ships using ammonia fuel.

The utility model relates to a kind of folding table, including table board, foot pipe assembly, support pipe, guide pipe and limiting component, the limiting component is fixed in table board back, foot pipe assembly and guide pipe are arranged at the back of table board with interval, and respectively with table board rotation connection, the support pipe is respectively connected with foot pipe assembly and guide pipe rotation, so that foot pipe assembly opens, support pipe is set in limiting component under the action of foot pipe assembly and guide pipe, and keep position unchanged.The utility model is connected with the guide pipe that is hinged on the table board on support pipe, the movement position of support pipe is limited by guide pipe, so that foot pipe assembly opens, can be linked to drive support pipe to easily enter limiting component, solve the problem that support pipe is inconvenient to put into limiting component (clamping slot).

The utility model relates to the technical field of machine frames of injection molding machines, and discloses a hardware machine frame shell structure with a heat dissipation channel, which comprises a hardware assembly frame, a limiting frame, guide arms and a sliding frame, the limiting frame is assembled at the top of the hardware assembly frame, the guide arms are uniformly distributed between the limiting frame and the hardware assembly frame, and the sliding frame is arranged on the limiting frame. The sliding frame is arranged outside the guide arm in a sliding mode, air cooling pipes are evenly distributed in the hardware assembly frame, guide mechanisms are evenly distributed on the tops of the air cooling pipes, each guide mechanism comprises a filter pipe and a guide pipe, the filter pipes are assembled on the top of the hardware assembly frame, and the guide pipes are inserted into the tops of the air cooling pipes. According to the hardware rack shell structure with the heat dissipation channel, the interior is kept clean, the part fault risk caused by impurities is reduced, the service life of equipment is prolonged, the maintenance cost is reduced, the guide mechanism can be automatically closed when not in use, and dust and other foreign matter are prevented from entering the air cooling pipe to affect normal use of the air cooling pipe.

The invention belongs to the field of tilt rotorcraft rotor structure design, and particularly relates to a rotor shaft and guide cylinder gap design method based on impact response simulation. Comprising the following steps: setting an initial value delta R0 of a gap between a tilt rotor shaft and a guide cylinder; determining a three-dimensional model of the rotor shaft and the guide cylinder, and carrying out modal analysis by utilizing a finite element analysis method to obtain low-order modal frequencies and vibration modes of the rotor shaft and the guide cylinder model; establishing an aeroelastic response model of the isolated rotor; calculating rotor center lateral forces Fx and Fy; according to the lateral forces Fx and Fy of the rotor center and the low-order modal frequency and vibration mode of the rotor shaft and the guide cylinder model, establishing an impact response dynamic model of the rotor shaft and the guide cylinder, applying the lateral forces Fx and Fy as impact loads to the mounting position of the rotor center on the rotor shaft, and setting impact time delta t; carrying out impact response dynamic model calculation, and extracting a minimum gap value delta Rt; and adjusting the initial value delta R0 according to the minimum gap value delta Rt until delta Rt is greater than or equal to 0 and less than an allowable value.

The utility model discloses a sprayer for surface anesthesia, which relates to the technical field of medical equipment, effectively achieves the purpose of conveniently adjusting the spraying position, and comprises a mouth gag, a detachable positioning plate is arranged in the middle of the mouth gag, a guide tube is connected to the middle of the positioning plate in a sliding manner, and an outer wrapping tube is sleeved in the guide tube. A bending mechanism is arranged in the outer wrapping pipe, one end of the outer wrapping pipe is fixedly connected with an adjusting handle, the other end of the outer wrapping pipe is fixedly connected with a spray head, the novel medical sprayer is novel in structure, ingenious in conception and easy and convenient to operate, the function of controlling the spraying amount is effectively optimized, and the problem that the spraying position deviates due to movement of a patient is solved.

An apparatus for processing a substrate includes a processing container having an internal space; a support unit having a support plate configured to support and rotate the substrate in the internal space; a liquid supply unit configured to supply a processing liquid to the substrate supported by the support unit; and an exhaust unit configured to exhaust an air flow in the internal space, wherein the exhaust unit includes an air flow guide tube that guides a flow direction of an air flow flowing on the substrate toward an outer side of the substrate due to rotation of the substrate supported by the support unit, and the air flow guide tube has an inlet into which an air flow is introduced, the inlet being disposed at substantially the same level as the substrate supported by the support unit.

The application discloses a nuclear power plant control rod guide tube, which comprises a protective cover and a full-range guide assembly installed in the protective cover; the full-range guide assembly comprises at least one full-range continuous guide element, and a full-range continuous guide channel is arranged in the full-range continuous guide element; the full-range continuous guide channel continuously guides at least one control rod in a single control rod assembly in a full range of the guide tube stroke. Compared with the prior art, the nuclear power plant control rod guide tube changes the non-continuous guide segment structure of the interval arranged guide panel into the full-range continuous guide segment formed by the long double-pipe structure, optimizes the control rod stroke protection function, reduces the risk of the control rod bending deformation caused by the transverse impact of the upper chamber fluid on the control rod, and guarantees the integrity of the control rod structure; meanwhile, the wear resistance of the specific position of the control rod guide tube is improved, so that the service life of the control rod guide tube is greatly prolonged, and the later operation cost is reduced.