41 results about "Closed chamber" patented technology

This invention discloses a method for pre-fabricating porosity defects in nickel-based alloy welds, comprising: S1.1, applying a bottom weld bead structure to the surface of a metal test plate, the bottom weld bead structure comprising N consecutive adjacent weld beads, where N is an integer greater than 1; controlling the welding position of adjacent weld beads to form a gap between each pair of adjacent weld beads; S1.2, applying grease into each of the gaps as a gas source to induce porosity; S1.3, applying a second weld bead structure on the bottom weld bead structure, using the second weld bead structure to completely cover each of the gaps, encapsulating the grease, and forming one or more first closed chambers containing grease. This invention organically combines the porosity generation law of nickel-based welds with welding process control, successfully pre-fabricating porosity defects, and laying the foundation for the study of the porosity generation mechanism of nickel-based welds and subsequent process improvement.

A kind of inside tube spraying device of noise reducer, including base, vertical plate is welded on base, a pair of fixed ring is welded on the upper end of vertical plate, outer tube cover is welded in fixed ring, the end of outer tube cover is shaped with convex edge, end disc is installed on convex edge by screw, rotating tube is coaxially and rotatably arranged on end disc, a pair of communication pipe is communicated on rotating tube, rotating plate is fixed on the inner side end of rotating tube, outer tube and inner tube are fixed on the other end of rotating plate, a plurality of spray heads are fixed on the inner wall of outer tube and the outer wall of inner tube.The utility model discloses when spraying, a more closed chamber is formed by outer tube cover and the sealing disc connected and fixed thereon, so that, paint can be avoided to splash in the process of spraying, to avoid causing pollution to environment.

The application discloses a supercooling box suitable for a condenser and a horizontal condenser, wherein the cover plate of the supercooling box is horizontally arranged at the top, the arc-shaped plate is extended upwards from the bottom of the arc-shaped plate and is buckled with the upper end cover plate, the outlet is arranged at the middle of the bottom, the notches are arranged at the two ends to form the liquid inlet, the end plate, the cover plate and the arc-shaped plate form a closed chamber, the baffles are distributed and arranged in the closed chamber, the liquid flow forms a serpentine or zigzag flow channel along the baffles in the closed chamber, the two ends of the supercooling box are arranged at a distance from the tube plate at the two ends of the cylinder, and the arc-shaped plate at the bottom of the supercooling box is arranged at a distance from the cylinder and is consistent with the arc of the cylinder. The defects that the existing condenser is easy to accumulate refrigerant and the refrigerant is gathered at the water inlet side are improved.

This application provides a device and method for measuring the amount of electrolyte adsorbed on an electrode. The device includes a housing, a storage tank, a weighing component, a driving component, and a data acquisition controller. The housing has a closed chamber, in which the storage tank, weighing component, and driving component are all located. The weighing component includes at least one weighing device, each weighing device including a suspension rod, a suspension damping device, and a weight sensor. The suspension end of the suspension rod is located above the storage tank, and the suspension rod is connected to the weight sensor through the suspension damping device. The driving component is used to drive the storage tank or the weighing component to move up and down. The data acquisition controller is connected to the weight sensor and is used to collect and process the data measured by the weight sensor. This application can measure the mass of electrolyte adsorbed on the electrode in real time and is simple to operate.

The utility model provides a reaction platform, this reaction platform is used for carrying out the combustion or gasification reaction of particle, this reaction platform includes: reaction chamber cavity, reaction chamber cavity is the closed chamber for accommodating particle and carrying out the combustion or gasification reaction, ignition device, ignition device is used for igniting the particle in reaction chamber cavity, ultrasonic wave suspension device, ultrasonic wave suspension device includes the generating part and the reflection part, wherein, the generating part is opposite with the reflection part and each other at least partly extends to the inside of reaction chamber cavity, the one end on the generating part inside reaction chamber cavity is used for producing ultrasonic wave, the one end on the reflection part inside reaction chamber cavity is provided with the reflecting surface towards the generating part, the reflecting surface is the face that is recessed towards the generating part, and the reflecting surface carries out the reflection to the ultrasonic wave received on it. Avoided the physical contact between reaction platform and particle, facilitated the reduction and observed the reaction state of particle in the actual application process and realized the safe use.

The invention relates to a cross-shaped hybrid wind turbine foundation and a method for constructing the same. The cross-shaped hybrid wind turbine foundation comprises a pile cap (1) cast from reinforced concrete in the shape of an inverted drum, the pile cap comprising an outer cylinder (9), an inner cylinder (10) and radial walls (11) arranged radially on the outer surface of the inner cylinder (10) to connect the inner cylinder (10) with the outer cylinder (9) forming a monolithic rigid cover plate. A cover plate (12) covers the top surface of the pile cap (1) forming a closed chamber between the cover plate (12), the outer cylinder (9), the inner cylinder (10) and the radial walls (11) allowing for vacuum suction when the pile cap (1) is placed on a seabed foundation. An adapter tower (2) is connected to the top surface of the pile cap (1). An upper pile segment (3) is connected to the bottom surface of the pile cap (1) and a lower pile segment (4) is inserted inside the upper pile segment (3); an upper anchoring cable (6) connects the pile cap (1) to the upper end of the adapter tower (2) and a lower anchoring cable (5) connects the pile cap (1) to the upper pile segment (3).

This utility model discloses a rotating mop bucket, belonging to the field of mop buckets. It includes a lower bucket for containing wastewater, an upper bucket positioned above the lower bucket, and a rotating drive device. The upper bucket has a washing chamber for accommodating the rotating mop for cleaning, a spin-drying chamber for wringing out the rotating mop, and a clean water chamber for containing clean water. The spin-drying chamber is connected to the lower bucket. The washing and spin-drying chambers are independently configured, with the bottom of the clean water chamber higher than the bottom of the washing chamber. The bottom of the clean water chamber has a clean water outlet for supplying water to the washing chamber. After the clean water chamber is filled with water, it acts as a temporary closed chamber. Clean water automatically flows into the washing chamber from the clean water outlet. When the liquid level in the washing chamber rises to be level with the clean water outlet, the clean water chamber is resealed, allowing the clean water chamber to supply a measured amount of water to the washing chamber. The advantages of this utility model are the separation of clean and dirty water, ensuring that the water used to wash the mop head is relatively clean each time. The automatic and measured water dispensing eliminates the need for manual water filling or the use of a water pump.

The application discloses a kind of reaction kettle temperature control device and reaction kettle, kettle body is equipped with jacket, feed pipe, discharge pipe, kettle body is provided with cooling pool, first pipeline, second pipeline outside, cooling pool is provided with cold liquid outlet and cold liquid outlet, cooling pool is provided with multiple cooling cylinders, cooling cylinder is vertically spaced apart between, cooling cylinder is closed chamber, stirring paddle is all provided in cooling cylinder, the upper portion of cooling cylinder is connected discharge pipe by first pipeline, the lower portion of cooling cylinder is connected the feed pipe of kettle body by second pipeline, pump body and first valve are provided on first pipeline, first valve is close to discharge pipe compared with pump body.The application replaces reaction kettle jacket or coil by using different pipeline to control cold and hot medium to replace, avoids the leakage problem caused by large temperature difference of equipment, improves safety and fast temperature control ability.

A light engine includes a housing, an optical assembly, a heat exchange device, and a fan. A first lens, a second lens, and the housing cooperatively define a first closed chamber. The first closed chamber includes an air-cooling chamber, a first heat exchange chamber, and a second heat exchange chamber. The first heat exchange chamber and the second heat exchange chamber are arranged on opposite sides of the light converging member, respectively. The air-cooling chamber is in communication with the first heat exchange chamber and the second heat exchange chamber. The liquid crystal light valve is arranged in the air-cooling chamber. A part of the heat exchange device is located in the first heat exchange chamber and / or the second heat exchange chamber. The air blower is provided in the first heat exchange chamber or the second heat exchange chamber.

This invention relates to a new energy bus. The new energy bus includes a vehicle body, which includes a roof frame at the top, a roof skin covering the top of the roof frame, and a passenger area top layer located below the roof frame. A liquid heat exchange plate is fixed on the roof frame. The liquid heat exchange plate has a coolant inlet and a coolant outlet connected to an air conditioning system. A battery module is fixed on the top surface of the liquid heat exchange plate. A sealing cover covering the battery module is directly or indirectly sealed on the roof skin. A filler is provided between the liquid heat exchange plate and the passenger area top layer, forming a closed chamber. A window communicating with the passenger area is provided on the passenger area top layer at a position corresponding to the chamber, and a window body that can be opened and closed is provided at the window. A fan for blowing air into the passenger area through the window is provided in the chamber.

The utility model relates to a kind of descaling devices, including mainframe box, processing pipeline is located in mainframe box and multiple groups are arranged in parallel, first closed chamber and second closed chamber are arranged at the both ends of mainframe box, the both ends of processing pipeline are communicated with first closed chamber and second closed chamber respectively, first closed chamber and second closed chamber are communicated with one end of descaling pipeline, the other end of descaling pipeline is communicated with medicament storage tank, medicament storage tank imports descaling reagent by pump, pump circulates reagent along first closed chamber, second closed chamber and processing pipeline, by high efficiency, the scale layer of these parts is removed, avoid the case that water passage flow is small, ensure the entire water system's unobstructed, maintain the purification efficiency of purification mainframe to cooling circulating water, ensure that equipment can be stably and efficiently operated, reduce the risk that equipment efficiency is reduced due to scale layer accumulation, reduce the maintenance cost and energy consumption cost of enterprise.

This invention provides a solder paste uniform mixing device, belonging to the technical field of mixing equipment. It includes a frame and a mounting plate installed on top of the frame, and further includes: a reciprocating oscillating mechanism mounted on the mounting plate, with a fixed ring connected to the oscillating end of the mechanism; an outer cylinder detachably connected to the inner wall of the fixed ring; and an inner cylinder fixedly installed on the inner wall of the outer cylinder, forming a closed chamber between them. A uniformly distributed distribution pipe is fixedly connected to the outer wall of the inner cylinder. The inner cylinder wall has a first unidirectional air outlet communicating with the distribution pipes. A hollow ventilation pipe is fixedly connected to the center of the bottom of the inner cylinder, with one end of the hollow ventilation pipe passing through the inner cylinder and communicating with the distribution pipes. This invention, through its unique double-layer structure design and airflow mixing method, achieves uniform mixing and stable temperature control of the solder paste, improving its performance and soldering quality.

This application relates to the technical field of cleaning devices, and in particular to a non-contact high-pressure cyclone surface particle removal device, comprising a tray with a hinged flip cover that can be flipped to close the tray, forming a cyclone cleaning chamber between the tray and the flip cover. A cyclone separator is disposed on the tray within the cyclone cleaning chamber. This invention utilizes an upper spiral ring and a lower spiral ring in cooperation with the workpiece body, using the workpiece as a physical partition. Within the closed chamber, the cyclone separator includes a lower spiral ring disposed within the tray, and an upper spiral ring corresponding to the lower spiral ring disposed within the flip cover. The upper and lower spiral rings fit together to form a spiral channel, simultaneously constructing independent upper and lower channels. High-pressure airflow synchronously forms a spiral centripetal flow within the dual channels, completing the rinsing of the upper and lower surfaces of the workpiece in one pass, eliminating cleaning blind spots, avoiding the workpiece flipping step, thereby improving cleaning efficiency and reducing the risk of secondary contamination.

The embodiment of the specification discloses a kind of automobile carbon can escape emission pollutant detection systems.The system includes micro closed chamber, hydrogen flame ionization detector, fourier transform infrared spectrometer and controller, controller is configured in the initial moment corresponding to test instruction acquisition first test data, first test data includes the first temperature, first pressure, first hydrocarbon pollutant concentration and first methanol concentration of micro closed chamber;Controller is also configured in the first time after the first preset time length of initial moment, second test data is collected, and second test data includes the second temperature, second pressure, second hydrocarbon pollutant concentration and second methanol concentration of micro closed chamber;Controller is also configured to calculate the carbon can escape emission amount at the first time.In the embodiment, the precise quantitative detection of methanol fuel automobile pollutant emission during carbon can escape test can be realized, and the reliability of carbon can escape test is improved.

This invention proposes an anti-siltation drainage pipeline system, comprising a pipeline body, a guide plate adjustment mechanism, a flexible sealing diaphragm, and elastic supports. A closed chamber is formed by the flexible sealing diaphragm, the convex / arched surface of the guide plate, and the pipe wall of the pipeline body. The volume of this closed chamber changes with the water pressure within a certain range. This invention also proposes a design method based on the system described above, including: S1, flow analysis and pressure calculation: calculating the swing angle range of the guide plate and the selection parameters of the elastic supports based on the pipeline diameter, design flow rate, and hydraulic conditions; S2, material selection; S3, using finite element analysis to verify the strength of the guide plate, the rotating shaft, and the shaft connection structure. This invention further proposes an installation method based on the system described above, including component prefabrication, positioning and pushing, anchoring and locking, and functional debugging. This invention can effectively suppress silt deposition in pipelines and improve the overall operating efficiency of the drainage network.

This invention discloses a vibration-damping check valve, belonging to the field of check valve technology, which solves the problem of large opening and closing vibration in traditional swing check valves. The invention includes a valve body, a main valve cover, an inlet chamber, an outlet chamber, a valve seat, a rocker arm, and a valve disc. A liftable baffle is provided on the left side of the valve seat, and a media-driven drive structure is installed on the upper left of the valve body. The drive structure includes a drive chamber, a drive plate, an anti-rotation drive rod, a drive sleeve with a helical drive groove, a gear pair, and a screw. The linear motion of the drive rod is converted into rotational motion by the drive sleeve, driving the baffle to rise and fall smoothly. A buffer plate is hinged to the lower part of the baffle, forming a buffer mechanism with a buffer cone and a buffer spring. An overflow check valve is provided at the upper end of the valve seat, connecting the closed chamber and the outlet chamber. This invention, through baffle flow control, multi-stage buffering, and overflow pressure relief, slows down the opening and closing speed of the valve disc, eliminates vibration and water hammer, prevents loosening of connecting parts, improves sealing reliability and service life, and is suitable for backflow prevention scenarios in large-diameter, high-pressure pipelines.

The application provides a surface treatment method of a fuel cell bipolar plate, comprising the following steps: providing a bipolar plate to be treated, and placing the bipolar plate in a closed chamber; vacuumizing the chamber; filling the chamber with a diffusion gas, wherein the diffusion gas comprises nitrogen, and at least one of unsaturated organic gas and oxygen; heating the bipolar plate to a preset temperature of a gas diffusion reaction, and keeping the preset temperature for a preset time, so as to form a diffusion reaction layer extending inward from the surface of the bipolar plate in the bipolar plate. The application can effectively improve the corrosion resistance of the bipolar plate. The application also provides a bipolar plate treated by the above surface treatment method and a fuel cell comprising the bipolar plate.

This invention discloses a device and method for testing the insulation performance of porcelain insulators. The device includes an outer insulating shell forming a closed chamber and an oil immersion tank fixedly disposed inside the lower part of the outer insulating shell. The top of the outer insulating shell has a V-shaped opening. A lifting assembly is installed inside the outer insulating shell and located behind the oil immersion tank. A flip-type fixture is mounted on the drive end of the lifting assembly. A long-axis reversing driver is positioned above the oil immersion tank to drive the flip-type fixture to rotate the porcelain insulator around a horizontal axis, changing its orientation. This invention utilizes the lifting assembly to detach the flip-type fixture containing the porcelain insulator from the insulating oil. A pump assembly and a multi-pipe air blowing assembly use high-pressure airflow to gradually blow the insulating oil away from the insulator and electrode clamps. During the blowing process, the long-axis reversing driver causes the insulator to change its orientation, thereby compressing the natural oil draining time, which might otherwise take tens of minutes, and shortening the testing cycle for a single workpiece.

This application relates to a ventilated waterproof structure, which includes a shell assembly, a ventilated assembly, and a self-healing assembly. The shell assembly includes an inner shell, an outer shell, and a thermally responsive sealing layer located between the two. The ventilated assembly includes an inner ventilated membrane and an outer ventilated membrane covering the vent openings, which together form a closed chamber. The self-healing assembly includes a sacrificial conductive element attached to the surface of the inner ventilated membrane and an electric heating element embedded in the thermally responsive sealing layer, which are connected in parallel. This application has the following advantages: it utilizes the resistance difference of the parallel circuit to construct a physical sensing logic. When the ventilated membrane ruptures, causing an open circuit in the conductive element, it automatically triggers the electric heating element to melt the thermally responsive sealing layer to fill the closed chamber, achieving adaptive sealing of the vent openings and effectively solving the problem of equipment scrapping due to the failure of a single protective layer.

The utility model discloses an adjustable assembly type high pressure grouting soil nail of grouting range, including the coaxial line setting grouting outer tube and grouting inner tube, one end of grouting inner tube stretches into grouting outer tube, and the other end extends away from grouting outer tube, adopt threaded connection between grouting inner tube stretch into grouting outer tube part and grouting outer tube, the pipe wall of grouting inner tube is arranged with grouting hole, the outer baffle ring of end face of grouting inner tube is sleeved with grouting outer tube, and one end of grouting inner tube not stretching into grouting outer tube is equipped with the inner baffle of closing pipe orifice. The soil nail makes the internal formation closed chamber to the orifice prepositioned on the soil, causes to make grouting when can pressurize, accelerates the grouting speed, can make the grout infiltration into the soil rate to improve, and the combination strength between the soil after solidification is higher, and the overall function is perfect, and the practicality is strong.

A switching structure for switching multiple flame heads in a lighter and a lighter in general, comprising: a housing having an internal cavity, the housing having at least two vent pipes circumferentially arranged; a knob that cooperates with the housing to form a closed chamber and is rotatable relative to the housing, the knob having a shaft with a first vent hole on its side protruding upwards at its center, the shaft being placed within the cavity, and an elastic element being provided between the shaft and the housing, the first vent hole sequentially connecting to the vent pipes when the knob is rotated; and a gas lifting element, linked to the knob and rotating with the knob to move the vent head along the vent head axis. Through the cooperation of the knob and the housing, the vent holes are connected to the vent pipes respectively, enabling switching of the flame type. When any one vent pipe is aligned with a vent hole, the other vent pipe is closed, greatly reducing gas consumption, and allowing for arbitrary switching of the flame type during use.

A physical quantity detection device configured to detect a physical quantity of a target gas flowing in a main passage, the physical quantity detection device comprising: a housing arranged in the main passage; a sub-passage arranged in the housing; a flow rate detection unit arranged in the sub-passage; a circuit unit electrically connected to the flow rate detection unit; and a circuit chamber arranged in the housing that accommodates the circuit unit.and a first inlet passage having one end open to the subpassage and the other end open to the circuit chamber to connect the subpassage and the circuit chamber, and configured to introduce pressure of the target gas from the subpassage into the circuit chamber, the flow rate sensing unit comprising: a diaphragm with a diaphragm front surface exposed to the subpassage and a diaphragm rear surface exposed to a closed chamber separate from the subpassage;and a second inlet passage with one end open to the circuit chamber and the other end open to the closed chamber to connect the circuit chamber and the closed chamber, configured to introduce the pressure of the target gas from the circuit chamber into the closed chamber, and the circuit chamber having at least one or more projections arranged opposite an opening to which the other end of the first inlet passage is open.

This invention discloses a power distribution room protection system and method, relating to the field of power equipment safety protection technology. It includes: a sealing and isolation structure for sealing the area of ​​the power distribution room to be sealed, forming a closed chamber; a gas supply structure for supplying inert gas to the closed chamber to adjust the oxygen concentration; a monitoring structure for monitoring the oxygen concentration within the closed chamber; an access control structure for opening and closing the entrance door of the power distribution room; and a control structure, in which the monitoring structure, gas supply structure, and access control structure are all signal-connected to the control structure, which adjusts the gas supply and the opening / closing state of the access control structure based on the monitoring information from the monitoring structure. This power distribution room protection system can prevent fires at their source and ensures that personnel can re-enter in a safe environment, guaranteeing their personal safety.

This application discloses a magnetic pump lubrication and cooling structure. One end of a first pipe is connected to the outlet of a closed chamber formed by the inner magnetic cylinder and the pump body, and the other end is connected to a cooling supply tank. One end of a second pipe is connected to the inlet of a closed chamber formed by the inner magnetic cylinder and the pump body, and the other end is connected to the cooling supply tank. One end of a guide pipe is connected to a working end of the pump body, and the other end is connected to the cooling supply tank. A spiral guide plate is rotatably disposed inside the guide pipe. In this application, coolant flows back to the cooling supply tank through the first pipe, and fresh coolant in the cooling supply tank is pumped into the closed chamber through the second pipe for lubrication and cooling. The guide pipe at the working end of the pump body forms an additional coolant circulation path, reducing wear and heat generated by friction. The guide plate constrains and alters the flow path of the coolant within the guide pipe, increasing flow resistance and turbulence, thereby improving the cooling effect.

The utility model discloses an adjustable camera support for pipeline detection robot, including robot body and the base of setting in the front end of robot body, install rotating adjusting mechanism in the base, wherein the output of rotating adjusting mechanism penetrates the base and is connected with the pitching adjusting mechanism, and the camera module is installed on the pitching adjusting mechanism, the utility model discloses the closed chamber of adopting the shell and the sealing cover constitutes and contains rotating adjusting mechanism, adopts bearing support and sets up dynamic sealing ring, and the sealing cavity is also formed between rotating sleeve and sealing cover through limiting groove and sealing ring, guarantees the reliable operation and long life of adjusting mechanism under the bad pipeline environment, realizes horizontal rotation through worm wheel and worm drive, realizes the pitching swing through screw -nut sliding block and connecting rod mechanism cooperation, and two kinds of adjusting mode all adopt motor drive, and the control is accurate, and the structure is stable, and the angle adjusting function of all -round no -dead angle is realized in the limited space.

This invention belongs to the technical field of hydropower equipment, and specifically relates to a method for adjusting the clamping stroke of a turbine guide vane servo. The invention includes the following steps: placing the guide vane servo and control ring in the fully closed position; applying stepwise pressurization to the closed chamber of the guide vane servo, recording the chamber pressure and piston rod displacement values ​​after each pressurization until the piston rod displacement change rate significantly decreases and pressurization is stopped; plotting a pressure-displacement relationship curve based on the recorded chamber pressure and piston rod displacement values, identifying the inflection point on the curve, and determining the oil pressure value corresponding to the inflection point as the optimal clamping stroke adjustment oil pressure value; adjusting the piston position of the hydraulic locking servo and / or mechanical locking servo according to the optimal clamping stroke adjustment oil pressure value, so that the guide vane servo achieves the target clamping stroke. This invention provides a scientific, accurate, and repeatable method for adjusting the clamping stroke of a turbine guide vane servo, achieving precise control of the clamping stroke.

An anti-freeze water gun structure has a gun body. The gun body has a water passageway therein, a water inlet at a lower end thereof, and a water chamber between the water passageway and the water inlet. A guide tube is provided in the water chamber. A slidable piston is fitted onto the guide tube. A lower end of the guide tube has a sealing structure for blocking a lower end of the water chamber. A lower half of the water chamber, located below the piston, is surrounded by the piston, an inner wall of the water chamber, an outer wall of the guide tube and the sealing structure to form a closed chamber. An elastic member is provided in the closed chamber for elastically pushing the piston upward. A water channel communicating with the water inlet and the water passageway is formed in the guide tube.