28results about How to "Increase gas pressure" patented technology

The invention relates to the technical field of diamond synthesis raw material modification, and discloses a diamond synthesis raw material modification treatment device and method.The diamond synthesis raw material modification treatment device comprises a barrel body and further comprises a barrel cover, the automatic heating and pressurizing assembly is arranged in the barrel cover, and the automatic heating and pressurizing assembly is used for heating and pressurizing after the pressure in the barrel body is detected; and the detection pressure relief assembly is arranged in the barrel body and the barrel cover, and the detection pressure relief assembly is used for detecting the modification result of the diamond raw material and conducting pressure relief. The diamond raw material modification process can be automatically monitored, after diamond raw material modification is finished and diamonds are formed, pressure relief is automatically conducted on the barrel body, an alarm is automatically given after pressure relief to remind workers, the situation that the modification state of the diamond raw materials is not clear is avoided, and then the using effect of the equipment is improved.

The utility model relates to the technical field of semiconductor testing equipment, in particular to an ultralow-temperature-resistant and high-temperature-resistant centrifugal turbofan which comprises a motor, a centrifugal wind wheel, a fan cavity and a medium conveying pipeline. The two ends of the sealing cover plate are rotationally connected with a driving shaft and a driven shaft which extend into the draught fan cavity correspondingly, the two centrifugal wind wheels are connected with the lower end of the driving shaft and the lower end of the driven shaft correspondingly, and the end of the medium conveying pipeline communicates with the portion, between the two centrifugal wind wheels, of the draught fan cavity. A transmission part is arranged between the driving shaft and the driven shaft above the sealing cover plate, and the top end of the driving shaft is connected with a motor shaft of the motor; the centrifugal turbine resistant to the ultralow temperature and the high temperature is convenient to install and maintain, suitable for being used in the harsh environment, low in failure rate in the harsh environment and longer in service life.

The invention discloses a white spirit brewing raw material mixing device, and relates to the technical field of mixing. The problem of mixing efficiency is solved. The device specifically comprises a tank body and a tank cover fixed to the top of the tank body through bolts, a stirring mechanism is arranged at the bottom of the tank cover, a driving mechanism used for driving the stirring mechanism is arranged at the top of the tank cover, a feeding port is welded to the top of the tank cover, and the end face of the feeding port is detachably connected with a blocking cover; the stirring mechanism comprises an inner shaft and an outer shaft which are rotatably connected to the tank cover, and the inner shaft and the outer shaft are coaxially arranged. The stirring mechanism is arranged to be a combination of the inner shaft and the outer shaft, and is matched with the stirring rod and the spiral blade, so that on one hand, an adjacent mixing effect can be realized by utilizing stirring of the stirring rod, and on the other hand, materials can be conveyed along the interior of the outer shaft through rotation of the spiral blade and then are mixed with other raw materials in a jumping manner; therefore, the mixing efficiency and effect are improved.

The utility model belongs to the exhaust gas post -treatment device technical field, concretely relates to a kind of exhaust gas filtration passageway with pressure relief lateral branch structure.A kind of exhaust gas filtration passageway with pressure relief lateral branch structure, including main passageway, the middle position of main passageway is equipped with detachable filter screen assembly, the filter screen separates main passageway into main passageway upper section and main passageway lower section, and is equipped with pressure relief lateral branch between main passageway upper section and main passageway lower section, and the pressure relief lateral branch is connected main passageway upper section and main passageway lower section;The inside of the pressure relief lateral branch is equipped with valve piece assembly.

The invention discloses a load self-adaptive waste gas torch ignition device and a control system, relates to the technical field of torch ignition devices, and is mainly used for coping with combustible waste gas load fluctuation scenes in the industrial production process, realizing stable and efficient combustion of waste gas and avoiding resource waste and environmental pollution. Specific to a gas inlet mode in a high-pressure / low-pressure gas channel, self-adaptive actions are performed according to gas pressure fluctuation, and the actions comprise that a rotary encoder of an action fine adjustment assembly indirectly feeds back gas flow of the low-pressure / high-pressure gas channel by detecting the rotating speed of a transmission rod and combines initial gas pressure, a waste gas pressure change value and gas flow data, so that the gas flow is adjusted. The micro-drive motor is controlled to drive the transmission rod to rotate, the first transfer gas sheet drives the high-pressure gas channel forward / reverse gas sheet to rotate directionally, the overlap ratio of eccentric gas ports of the gas sheets is changed, the higher the overlap ratio is, the smaller the gas flow resistance is, the higher the gas pressure is, and otherwise, the smaller the gas pressure is, precise adjustment of the gas pressure of the high-pressure gas channel is achieved, and waste gas load changes are adapted.

The utility model discloses a high wind pressure fan with wind blade cover with pressure expansion static air channel, including the casing, rotor subassembly, stator subassembly, wind blade subassembly, the casing includes the inner wall and outer wall of coaxial connection, the wind blade subassembly includes wind blade and wind blade cover, be provided with static vane between the inner wall and the outer wall, the static vane is at the end face cooperation with wind blade, the air inlet angle of static vane and the rotation direction of wind blade are identical, form a static air channel between two adjacent static vanes, the shape of the cross section of static air channel is gradually enlarged shape away from the axle center, the outer wall has annular step structure, the annular step structure is located the outer surface or inner surface of the outer wall, one end of wind blade cover is assembled fixed with annular step structure and is limited, and the annular step structure is coaxial with stator installation cavity and first bearing installation cavity.

The present application discloses a dual-fluid combustion chamber and a gas turbine, the dual-fluid combustion chamber comprising: a flame tube comprising a first mixing zone, a main combustion zone, a second mixing zone and an air outlet which are connected in sequence, a first mixing hole and a second mixing hole are provided on the flame tube, the first mixing hole is connected to the first mixing zone, and the second mixing hole is connected to the second mixing zone. A first outer shell is arranged around the flame tube and cooperates with the flame tube to form a first outer flow channel with a first opening, the first opening is used to pass air, and the first outer flow channel is connected to the first mixing hole. A second outer shell is arranged around the portion of the flame tube corresponding to the main combustion zone and the second mixing zone and cooperates with the flame tube to form a second outer flow channel with a second opening, the second opening is used to pass the second working fluid, the second working fluid is a gas or a substance that can be phase-changed into a gas after heating, and the second outer flow channel is connected to the second mixing hole. The dual-fluid combustion chamber can improve the heat utilization rate and the gas flow rate and pressure ejected from the air outlet.

According to the intelligent casting device based on the digital boiling cooling channel and the control method of the intelligent casting device, firstly, high-performance low-pressure anti-gravity stable mold filling of metal melt is achieved, and then intelligent and high-cooling-speed metal melt high-performance solidification is achieved based on the digital boiling cooling channel. By means of the method, stable mold filling of low-pressure anti-gravity casting can be achieved, the defects of gas entrapment, oxidation slag inclusion and the like are reduced, sufficient feeding under pressure solidification is ensured, the problems of shrinkage cavities, shrinkage porosity, hot cracks and the like are reduced, and therefore a compact structure is obtained; and intelligent cooling speed enhanced solidification and sequential solidification of castings in any shape in a three-dimensional space can be realized based on a digital boiling cooling channel, a solidification structure with refined grain structure, small secondary dendritic crystal arm spacing and few defects is obtained, and finally, a high-performance high-end complex casting is produced.

The application belongs to the technical field of power generation, and particularly relates to a power supply device for automobile range extension, and more particularly to a direct-current power generation system and a working method thereof. The direct-current power generation system acquires the power of a power generation part in real time through a control module. When the power changes, the control module controls a pressurizing part to pressurize a power part cooling loop, and controls a connecting part to connect the power part cooling loop and the power generation part cooling loop, so that the high-pressure gas in the power part cooling loop enters the power generation part cooling loop, the gas pressure in the power generation part cooling loop is increased, the boiling point of the cooling liquid in the power generation part cooling loop is increased, and the cooling requirements of the power generation part and the power part are simultaneously met. When the power of the power generation part changes, the gas pressure in the power generation part cooling pipeline is increased, the boiling point of the cooling liquid therein is increased, and the cavitation effect caused by the local temperature rise and boiling of the cooling liquid due to the local eddy current caused by the power change is avoided.

The present invention relates to the field of solar power generation technology, and discloses a self-cleaning solar photovoltaic panel and a preparation method thereof, wherein a self-cleaning solar photovoltaic panel comprises: a photovoltaic panel body, the photovoltaic panel body comprises a glass plate, a battery cell and a back frame, the glass plate and the battery cell are fixedly installed in the back frame, and a self-cleaning coating is arranged on the top of the glass plate; a photovoltaic bracket, used for supporting and adjusting the angle of the photovoltaic panel body, the photovoltaic bracket is arranged at the bottom of the photovoltaic panel body; a self-cleaning mechanism, the self-cleaning mechanism comprises a water storage box, a spray barrel, a water spray mechanism and an air jet mechanism, the water storage box is slidably connected to the bottom of the back frame, the water spray mechanism comprises a compression box, two piston plates, a water outlet pipe and a liquid conduit, and one end of the two water outlet pipes are connected to the compression box. The present invention is reasonably designed, and the surface of the photovoltaic panel is automatically sprayed with water and air jets for cleaning through the self-cleaning mechanism, thereby improving the cleaning effect, and does not require a separate driving structure, thereby achieving the effect of energy-saving cleaning.

The utility model relates to a direct-drive supercharged compression device. The direct-drive supercharged compression device comprises a power assembly, a compression assembly and a supercharging mechanism. The power assembly comprises a first power mechanism and an output shaft. The compression assembly comprises a reciprocating body, a rolling piece, a piston and a cylinder body. The two ends of the output shaft are respectively connected with a shaft head, and are respectively linked with a reciprocating body through the shaft heads. A guide groove is formed in the circumferential surface of the shaft head, the rolling piece located on the corresponding side is clamped in the guide groove, and when the shaft head rotates, the reciprocating body drives the piston to be compressed in the cylinder body in a reciprocating mode. The pressurizing mechanism comprises a second power mechanism and a turbine mechanism, and the second power mechanism is connected with the turbine mechanism; the turbine mechanism communicates with the cylinder bodies located on the two sides through pressurization pipelines correspondingly. Or, the turbine mechanism is communicated with the cylinder body on one side through a pressurizing pipeline, and the cylinder bodies on the two sides are communicated. According to the scheme, the turbine mechanism is driven by the second power mechanism for pressurization, so that primary pre-compression treatment on inlet gas is facilitated, and the compression effect is improved.

The invention discloses high-viscosity modified asphalt pavement paving equipment, and relates to the field of road paving, the high-viscosity modified asphalt pavement paving equipment comprises a vehicle body and also comprises a mounting plate, the mounting plate is connected with the vehicle body through bolts, and the bottom of the mounting plate is connected with an ironing plate through a lifting mechanism; the adhesion removing mechanism comprises an electric heating plate fixedly connected to the inner side wall of the screed plate and heating liquid filled in the screed plate; the purifying mechanism comprises an air extracting pump fixedly connected to the outer side wall of the ironing plate, a collecting opening fixedly connected to an air inlet of the air extracting pump through a pipeline, and a baffle fixedly connected to the outer side wall of the collecting opening. According to the high-viscosity modified asphalt pavement paving equipment disclosed by the invention, waste gas generated by asphalt is adsorbed into the screed plate through the sucking pump and is in contact with ethylene glycol, and at the moment, the ethylene glycol reacts with harmful substances in the asphalt waste gas or is dissolved, so that an effect of purifying the asphalt waste gas is realized.

The utility model relates to the technical field of chargers, in particular to an electric bicycle charger with an overheating protection function, which comprises a shell, a connecting wire and a connector. An accommodating cavity is formed in the shell; a charging module is arranged in the accommodating cavity; the charging module is provided with a heat conducting seat; a first sealing cavity is formed in the heat conducting seat; a thermal expansion piece is arranged in the first sealing cavity; a second sealing cavity is formed in the connector; a push block is telescopically and movably arranged in the second sealing cavity; the connecting line is provided with an air passage; one end of the air passage is communicated with the first sealing cavity; and the other end of the air passage is communicated with the second sealing cavity. According to the utility model, the thermal expansion piece expands to extrude the gas in the first sealing cavity, so that the pressure of the gas in the gas channel is increased, one end of the push block is pushed to protrude out of the connector, and the other end of the push block is pressed against an external socket, so that the connector falls off from the socket, and the power supply of the whole charger is cut off; and the safety performance of the charger is improved.

The utility model relates to the technical field of ammonia water preparation, discloses an automatic ammonia water dispensing device, and solves the problems that in the ammonia water preparation process, part of ammonia water is volatilized into ammonia gas, so that the demand quantity of the prepared ammonia water is increased, and resources are wasted. The outer side of the rotating pipe is fixedly sleeved with an annular rack, one side of the annular rack is meshed with a gear, a motor is installed on the gear, a rotating rod is slidably arranged in the rotating pipe, a pressurizing block is rotatably installed on the rotating rod, the motor is started, the gear drives the annular rack to rotate, and the rotating rod is driven by the rotating pipe to rotate and move downwards at the same time. The pressurizing block moves downwards, the volume of gas on the lower side of the pressurizing block is reduced, the pressure of gas in the dispensing tank is increased, and ammonia gas can be more inclined to be dissolved in water to form ammonia water instead of being volatilized into air by increasing the pressure, so that the volatilization of the ammonia gas in the preparation of the ammonia water is reduced, and the waste of resources is avoided.

The utility model discloses an efficient filtering device for live vaccine distribution, which comprises a barrel body, a centrifugal barrel is arranged in the barrel body, a filter screen is arranged on the outer side of the centrifugal barrel, and a thermal insulation layer is arranged on the outer side of the filter screen; a liquid guide cavity is formed between the filter screen and the heat preservation layer, an annular box is arranged at the position, close to the top, in the liquid guide cavity, and the annular box can move up and down in the liquid guide cavity; a fan is arranged at the position, close to the top, of the outer side wall of the barrel, an air cavity is formed in the position, close to the top, in the barrel, the fan blows air into the air cavity, and air in the air cavity can enter the centrifugal barrel; the filtering efficiency of the vaccine is improved, the bonding amount of the vaccine on the wall of the centrifugal cylinder is reduced, a filter cake layer is prevented from being formed, and the cleanliness of the centrifugal cylinder is improved.

The utility model relates to a pressurizing type compression device which comprises a power mechanism, a reciprocating assembly, a piston, a cylinder body and a pressurizing mechanism. The first compression face of the piston and the inner wall of one side of the cylinder body form a first acting side, and the second compression face of the piston and the inner wall of the other side of the cylinder body form a second acting side. The reciprocating assembly comprises a reciprocating body and a rolling piece, the rolling piece is embedded in the reciprocating body, the reciprocating body is connected with the piston, the turbine mechanism communicates with the first acting side and the second acting side through an air inlet pipeline, and the power mechanism is used for driving the output shaft to rotate. The two ends of the output shaft drive the rolling piece to move along the guide groove relative to the shaft head and drive the turbine mechanism to conduct air inlet pressurization correspondingly, the guide groove is formed in the circumferential surface of the shaft head, the rolling piece is clamped to the guide groove, and the track of the guide groove is configured as follows: when the shaft head rotates to enable the rolling piece to move along the guide groove, the rolling piece moves along the guide groove; the reciprocating body drives the piston to alternately conduct reciprocating compression on the first acting side and the second acting side. According to the scheme, due to the arrangement of the pressurizing mechanism, secondary compression can be achieved, and the compression effect is improved.

The present application belongs to the technical field of gas bearings, and specifically relates to a rotating machine, a thrust gas bearing and a processing method thereof. The thrust gas bearing comprises a top foil and a support assembly, wherein the top foil is superimposed and connected to the support assembly, and the top foil comprises a plurality of thrust units distributed at intervals along the circumference of the top foil, and any two adjacent thrust units are separately arranged; at least part of the thrust unit is tilted relative to the support assembly to form a wedge-shaped convergence space between the thrust disk of the rotor and the thrust unit, and the thrust unit comprises a first end and a second end distributed along the circumference of the top foil, wherein the first end is lower than the second end, and the first end can move relative to the support assembly; the thrust unit is separated from the support assembly and a first gas space is formed between the two, and the first gas space can avoid the thrust unit to allow the thrust unit to undergo elastic deformation in the direction close to the support assembly. The present application can reduce the production cost of the thrust gas bearing.

The utility model provides a low-pressure gas supercharging device with multiple supercharging structures, which comprises a casing, a driving motor is mounted on the outer wall of the casing, an output shaft of the driving motor is fixedly connected with a linkage rod through a coupler, the outer wall of the linkage rod is fixedly connected with a semicircular driving plate, a connecting shaft is arranged on the outer wall of the semicircular driving plate, and the semicircular driving plate is fixedly connected with the connecting shaft. A driving rod is installed on the outer wall of the semicircular driving plate through a connecting shaft, one end of the driving rod is fixedly connected with a pressurizing piston, an air inlet pipe is installed on the outer wall of the machine shell, one end of the air inlet pipe is fixedly connected with a mechanical worm gear, and the outer wall of the mechanical worm gear is connected with an air inlet flange through the air inlet pipe; compared with the prior art, the pressurizing device has the advantages that pressurizing operation can be carried out through the multiple pressurizing structures, the pressurizing operation can be carried out in a separated mode, the pressurizing operation can also be carried out in a combined mode, and therefore the gas pressure in the pressurizing device can be increased.

The utility model provides a breathing air storage tank which comprises a metal tank body, a flexible air bag is arranged in the metal tank body, the flexible air bag divides the space in the metal tank body into an air cavity and a gaseous working medium cavity, the pressure of the air cavity is 0.7-3.5 Mpa, the pressure of the gaseous working medium cavity is the same as that of the air cavity, the air cavity is communicated with an air inlet and an air outlet respectively, and the air inlet is communicated with the air outlet. The gaseous working medium cavity is communicated with the working medium inlet and the working medium outlet. The gas working medium is dedusted in the metal tank at 0.7-3.5 Mpa, and compared with a normal-temperature and normal-pressure storage mode, the space occupied by the gas storage device is greatly reduced, so that the space cost is saved. Meanwhile, the cost of the air bag for air storage in the market is far higher than that of a metal tank body, the use amount of the air bag is reduced in the mode that the metal tank body can store pressurized air, and the overall cost of the air storage device is greatly reduced. In addition, the gaseous working medium in the breathing gas storage tank is in a pressurized state of 0.7-3.5 Mpa, so that the gaseous working medium is more convenient to pressurize again to liquefy the gaseous working medium.

The invention discloses a lifting pin device, semiconductor process equipment and a pressure control method, and relates to the field of semiconductors. A lifting pin device comprises an ejector pin assembly used for lifting a wafer and a gas transmission assembly. The ejector pin assembly is provided with an air channel, the first end of the air channel is used for making contact with a wafer, the second end of the air channel is connected with the air conveying end of the air conveying assembly, and the air conveying assembly is used for inflating the air channel and / or exhausting air from the air channel. According to the invention, at least the problems of random movement of the wafer or adhesion between the wafer and the three pins can be solved.

The invention provides a gas nozzle, a combustor and a gas cooker. The gas nozzle comprises a nozzle body and a pressurizing assembly. The pressurizing assembly comprises a connecting body and a pressurizing cabin; a first connecting port and a second connecting port are formed in the two ends of the connecting body respectively, and the inner diameter of the connecting body is gradually increased from the first connecting port to the second connecting port; one end of the pressurizing cabin is connected with the second connecting port, and a sealing plate is arranged at the other end of the pressurizing cabin; and the air inlet end of the nozzle is connected with the sealing plate and is communicated with the interior of the pressurizing cabin. According to the gas nozzle, the combustor and the gas cooker, the injection power can be improved, so that the primary air coefficient of the combustor is improved, the effective load of the combustor is improved, emission of CO pollutants in flue gas is reduced, and meanwhile the combustion efficiency is improved.

To prevent outward gas leakage between the airbag cushion and inflator during expansion and deployment with a simple configuration. The present invention provides an airbag device (4) including: an airbag cushion having at least two panels; an inflator (6) that discharges gas inside the airbag cushion; a first piece (531) extending from an edge of a first panel of the two panels that is folded in the middle into the airbag cushion; a second piece (537) provided on a portion near the edge of a second panel (51) facing the first piece (531) inside the airbag cushion (5) and sewn to the folded part (538) of the folded first piece (531); and an insertion passage (55) for the inflator (6) formed from sewing the folded part (538) and the second piece (537), and extending from inside the airbag cushion to outside.

The invention relates to the technical field of inner tube quality detection, in particular to an automobile inner tube detection device which comprises a mounting frame. The installation semi-ring is connected with the installation frame, and the installation semi-ring is movably connected with a locking semi-ring; the detection rods are connected to the mounting half ring and the locking half ring in a sliding mode, the multiple detection rods are evenly distributed in the circumferential direction and form a detection area for an inner tube to penetrate through, the detection rods are connected with springs in a sleeving mode, the springs are connected with the mounting half ring or the locking half ring, and displacement sensors are installed on the detection rods; the driving units are used for driving the inner tube to rotate, the mounting semi-ring and the driving units are located in the same concentric circular ring area, the driving units are connected with the mounting frame, and the driving units are connected with the inner tube; according to the invention, the rubber distribution uniformity of the automobile inner tube and the deformation uniformity of the automobile inner tube after local compression can be comprehensively detected.

The invention discloses an air supply system of an engine. The air supply system comprises the engine; a first air pipe assembly and a second air pipe assembly; the turbocharger comprises a turbine and a gas compressor which are connected, the first gas pipe assembly communicates with a gas inlet of the turbine and a gas outlet of the engine, and the second gas pipe assembly communicates with a gas outlet of the gas compressor and a gas inlet of the engine; an air inlet and an air outlet of the air storage tank are communicated with the second air pipe assembly; the first control valve is installed on the second air pipe assembly and used for controlling opening and closing of an air inlet and an air outlet of the air storage tank; the third control valve is installed on the second air pipe assembly and located between the engine and the turbine.

The invention provides a control method for gas pressure of a dual-fuel engine, relates to the technical field of dual-fuel engines, and is applied to the dual-fuel engine which comprises a diesel system and a natural gas system. The natural gas system comprises a natural gas booster pump, a natural gas filter, a high-pressure gas buffer tank and a natural gas rail; the control method for the gas pressure of the dual-fuel engine comprises the steps that the working condition of the dual-fuel engine is obtained; and the natural gas booster pump and the flow metering valve are controlled according to the rotating speed of the engine, the pressure value in the high-pressure gas buffer tank and the pressure value in the natural gas rail under the starting state, the load increasing working condition and the load reducing working condition of the dual-fuel engine. Coupling of the fuel oil rail pressure and the fuel gas rail pressure is relieved; and the natural gas set pressure is subjected to partition control, so that natural gas pressure fluctuation is reduced, the adjustment difficulty is reduced, a gas pressure control module is omitted, and the system cost is reduced.

This invention discloses a 72.5kV single-tank environmentally friendly gas-insulated GIS structure for offshore wind turbine towers. It connects to the transformer on the wind turbine generator side at the top and to the submarine cables on both sides of the wind turbine tower at the bottom. A second chamber with a two-stage pressure differential enhances the gas pressure and insulation capacity within the insulation tank, solving the problem of insufficient mechanical lifespan of existing vacuum bubble corrugated pipe technology in 5-6 MPa high-pressure gas environments. The three-position switch adopts an innovative L-shaped direct-acting double-contact structure, fully utilizing the three-dimensional space. The insulation disc uses a dielectric constant functionally graded material to improve overall insulation performance. A shock-resistant base combining gas springs and hydraulic cylinders achieves vibration reduction and energy dissipation. The insulating gas is clean air, complying with carbon neutrality policies and representing the future development direction. Integrating all high-voltage switches into a single tank significantly reduces size, resulting in a compact structure, saving floor space, facilitating installation within offshore wind turbine towers, and minimizing the risk of gas and electrical leakage, thus offering a cost advantage.

The utility model relates to a dioctyl terephthalate synthesizing device which comprises a reaction kettle, a first nitrogen conveying pipe is arranged on the reaction kettle, and a first temperature sensor, an electric heater, a second temperature sensor, a nitrogen pressure unit, a first gas flow sensor and a first adjusting valve are arranged on the first nitrogen conveying pipe. A rectifying tower is arranged above the reaction kettle and comprises a tower body and a filler layer, a first liquid phase return pipe is arranged between the tower body and the reaction kettle, a first gas phase conveying pipe is arranged between the tower body and the reaction kettle, and a second adjusting valve, a first pressure sensor and a third temperature sensor are arranged on the first gas phase conveying pipe; and a third regulating valve is arranged on the first liquid phase return pipe. The synthesis efficiency of the dioctyl terephthalate can be improved under the condition of keeping the esterification rate of reactants. And the device is convenient to adjust and use, and has a wide market prospect.

The weather resistance testing apparatus 1 includes a pressurizable container 2, a sample holder 3, and a light irradiation device 4 having a light source 4a. The pressurizable container 2 has a quartz glass plate 16 that can transmit light L. The sample holder 3 is disposed in the pressurizable container 2 and can hold a sample S. In this weather resistance testing apparatus 1, the light irradiation device 4 is disposed outside the pressurizable container 2 and irradiates the sample S with light L from the light source 4a via the quartz glass plate 16.