83results about How to "Supercharged quickly" patented technology

The invention relates to a high-pressure compressing solid-liquid separation device of a flexible pipe. Pipe-shaped filtering medium at the utmost outside layer adopts a steel wire braid conveyer belt, and filter residue left on the filtering medium is removed in filtering by using a piston scrapper plate; the solid-liquid separation is accomplished in compressing by utilizing the principle of filter chamber variable-volume compression, the filter chamber is almost close to zero in volume after volume variation, and does not need a high-pressure pump to convey raw materials and does not need an additional compression water pump system or compression compressed air system as the filter pushing force of a filter press; and a pressing assembly of a pressing application system adopts an pressing reinforced connection rod mechanism, not only the pushing force is increased by dozens of times, but also the pressure is maximal when the pressing stroke is over with the filter pressure up to 2.5MPa. The device can adopt repeated treading and filtering, the alternating change of the thickness and the thinness of the raw materials in compression improves the filtering speed, washing speed and efficiency; the humidity of a filter cake is uniform; the washing regeneration of filter mediums is automatically accomplished; the residue discharge is automatically accomplished; the production process can realize complete automazation, so that the energy consumption is reduced, and the production efficiency is higher; and the manufacture cost is low due to the utilization of screw rod for clamping and compression.

The invention discloses a technical scheme of a control-by-wire hydraulic braking system. An electrical-controlled pressure generating and adjusting unit (B) of the control-by-wire hydraulic braking system is provided with a hydraulic pump (09); an oil outlet pipeline of the hydraulic pump (09) is connected with each brake through an electromagnetic valve; each of two oil cavities of a brake master cylinder (03) is connected with the corresponding brake through the corresponding electromagnetic valve; the oil outlet pipeline of the hydraulic pump (09) is also connected with an oil pot (4) through an electromagnetic pressure adjusting valve (07a); and an electrical-controlled line of each of the electromagnetic valves is connected with an electronic control unit (C). The invention also discloses a control method of the control-by-wire hydraulic braking system. Through the adoption of the technical scheme of the control-by-wire hydraulic braking system disclosed by the invention, a conventional strengthener and a conventional brake master cylinder are not used, and the function of the strengthener, the function of the brake master cylinder and the function of an ESC are integrated in one hydraulic control unit, so that the production cost of the control-by-wire hydraulic braking system is reduced, the size of the control-by-wire hydraulic braking system is low, and the mounting and the arranging of the control-by-wire hydraulic braking system on a vehicle are facilitated.

The invention provides a wire-controlled hydraulic brake system adopting a high-pressure energy accumulator and a brake control method thereof. the high-pressure accumulator in the system is connectedto a pedal cavity through a normally closed one-way switch electromagnetic valve, a pressure cavity of a brake main cylinder is respectively connected with the pedal cavity and a high-pressure energyaccumulator through a normally opening two-way switch electromagnetic valve and a normally closed one-way linear electromagnetic valve; a normally open two-way linear electromagnetic valve of the brake pressure control unit is connected between the two inner cavities of the brake main cylinder and the brake wheel cylinder; a pressure sensor is arranged at the entrance of the brake wheel cylinder,the electromagnetic valve and the sensor are respectively in signal connection with the electronic control unit; the brake control method controls the on-off of the high-pressure energy accumulator and the pressure cavity of the brake main cylinder through the electronic control unit, controls the normally open two-way linear electromagnetic valve, and further controls the correspondingly connected brake wheel cylinders to perform brake pressurization, brake pressure maintenance or brake pressure reduction. According to the wire-controlled hydraulic brake system adopting a high-pressure energy accumulator and the brake control method thereof, rapid and accurate pressure control of the brake system is realized through the high-pressure energy accumulator, and good pedal feedback is provided for a driver.

The invention provides a flexible pipe parallel connection typed high-temperature and high-pressure squeezing and dry solid / liquid processing device; during the squeezing process, the solid / liquid separation is completed by a squeezing principle of changing volume of a filter chamber; the volume of the filter chamber can be near zero after the volume is changed; high pressure pump can not be needed to convey the raw material and additional squeezing water pump systems or squeezing air systems are not required to be taken as the filter pushing force of a press-filter; the mechanical pushing force is large and the pressurizing is quicker; repeated nipping filtration can be adopted; the washing filter slag is dipped; during the squeezing process, the alternative change of the thickness of the raw material improves the filtration speed, the washing speed and the efficiency; the humidity of a filter cake is uniform; the filtration and squeezing can be carried out at the same time when the vacuum or steam drying is carried out; the production quantity of each sequence batch is easily changed according to the requirement of production capability; the washing regeneration of the filter medium is automatically completed; the slag drainage is automatically completed; during the production process, various automatic protections can be adopted, thus completely realizing the automation, reducing the energy dissipation and having high production efficiency.

The invention discloses an intelligent supercharging device and method for a low-temperature thermal insulation container. The device comprises the low-temperature thermal insulation container and an electrical control system. A liquid outlet of the low-temperature thermal insulation container is connected with a stop valve through a liquid outlet pipeline. The stop valve is connected with an overflow valve through a liquid outlet pipeline. The overflow valve is connected with a vaporizer through a liquid outlet pipeline. The vaporizer is further internally provided with a heater. The outlet end of the vaporizer is connected with an engine, and the other end of the vaporizer is connected with a buffering tank through a supercharging pipeline. The buffering tank is connected with an air pump through a supercharging pipeline. The air pump is connected with a one-way valve through a supercharging pipeline. The one-way valve is connected with an air inlet in the upper portion of the low-temperature thermal insulation container through a supercharging pipeline. The electrical control system is connected with the heater, the air pump, a pressure sensor installed on the low-temperature thermal insulation container, and a temperature sensor installed at the outlet end of the atomizer through a control circuit. By means of the intelligent supercharging device and method for the low-temperature thermal insulation container, rapid and safe supercharging can be achieved for the low-temperature thermal insulation container within short time.

The invention discloses an integrated brake master cylinder, comprising an integrated master cylinder coupling part and an integrated master cylinder execution part, wherein the integrated master cylinder coupling part comprises a brake master cylinder; the integrated master cylinder execution part comprises a high pressure accumulator; the brake master cylinder outputs two paths of oil ways; one path of oil way is connected with a pedal simulator by a normally closed solenoid valve, and is provided with a pedal simulator sensor at the end where the pedal simulator is located; the other path of oil way is connected with an execution oil way at an input end of the high pressure accumulator by a normally open solenoid valve, and an output end of the high pressure accumulator is provided with a high pressure accumulator pressure sensor; the execution oil way at the input end of the high pressure accumulator is connected with an output oil way of the brake master cylinder by a switch normally closed solenoid valve, is divided into branched oil ways after passing through the switch normally closed solenoid valve, and is connected with a wheel brake cylinder by a linear liquid inlet solenoid valve; the execution oil way is provided with liquid outlet branched oil ways while being connected with the wheel brake cylinder. The integrated brake master cylinder can achieve the effect of rapid pressurization within the specified time, and can realize rapid and accurate wheel cylinder pressure control.

The invention discloses a vacuum liquid pressure impregnation (VLPI) device and an impregnation method. The device comprises a paint storage tank, a paint soaking tank, a vacuum set, an external pressurizing assembly, an evacuating assembly, and an internal circulation assembly. The vacuum set and the evacuating assembly are both connected to the paint soaking tank. The paint storage tank is connected to the paint soaking tank through the external pressurizing assembly. One end of the internal circulation assembly is connected to the paint storage tank, and the other end is connected to the external pressurizing assembly. The method comprises the following steps: step one, carrying out vacuum dehumidifying; step two, performing vacuum paint soaking; step three, carrying out liquid pressure impregnation; step four, dripping paint; and step five, taking out workpiece. The provided device and method have the advantages that the pressure increasing is rapid and stable, the impregnation effect and product quality are high, and the paint filtering frequency is reduced.

The invention provides a high-speed filtration and high-temperature and high-pressure squeezing and drying flexible pipe typed solid / liquid processing device; during the filtrating process, a piston slag scraper is used for removing the filtrated slag remained on the filter medium and replace a compressor and a filter machine at the same time; during the squeezing process, the solid / liquid separation is completed by a squeezing principle of changing volume of a filter chamber; the volume of the filter chamber can be near zero after the volume is changed; high pressure pump can not be needed to convey the raw material and additional squeezing water pump systems or squeezing air systems are not required to be taken as the filter pushing force of a press-filter; the mechanical pushing force is large and the pressurizing is quicker; repeated nipping filtration can be adopted; the washing filter slag is dipped; during the squeezing process, the alternative change of the thickness of the raw material improves the filtration speed, the washing speed and the efficiency; the humidity of a filter cake is uniform; the filtration and squeezing can be carried out at the same time when the vacuum or steam drying is carried out; the production quantity of each sequence batch is easily changed according to the requirement of production capability; the washing regeneration of the filter medium is automatically completed; the slag drainage is automatically completed; during the production process, automation can be completely realized, the energy dissipation is reduced and the production efficiency is high.

The invention belongs to the field of stone materials and mining, and particularly relates to a punching injection type fractured stone material mining and processing method. The method mainly solves the problems that minerals such as siliceous jades, amphiboles, granites, quartz stones, stromatolites, serpentine-jades, marbles and the like are difficult to mine and have low yield. The technical scheme is that a macromolecule glue solution and an injection device are adopted, deep holes are used for high-pressure injection, the stone material is spalled under the high pressure of 20-100 MPa, and adhersion bonding healing and injection spalling of joint fissure rocks are achieved through a drilling and grooving process, a rubber nozzle arranging process, a macromolecule glue solution configuration process, a surface joint filling process, a high-pressure injection process and a surface glue permeation process. The method has the advantages that mining can be performed easily, and the yield is high.

The invention relates to a flexible tube side-by-side series connection high-speed high-pressure pressing and dryness solid-liquid treatment device. In filtration, a traction mechanism is utilized for pulling a piston scraping residue plate so as to remove the filter residue cut off by a filter medium, and a concentrator and a filter are simultaneously replaced; when pressing, the theory of transfiguration and pressing of a filter chamber is utilized for finishing solid-liquid separation, the filter chamber can approach to zero after the capacity is varied, a pressing water pump system or a pressing compressing air system does not need to be equipped additionally as the filter driving force of the pressure filter, mechanical driving force is larger, and pressure is increased quickly; repeated massage filtration can be adopted, filter residue is soaked and washed, when pressing, the alternative change of thickness of the raw material improves the filter speed, washing speed and efficiency; the degree of wetness of the filter cake is even; filtration and pressing can be carried out simultaneously in vacuum or steam dryness; according to demands of production ability, the amount of production of each order can be changed easily; washing and regeneration of filter mediums can be finished automatically; residue slagging can be finished automatically; complete automation during production can be realized, energy consumption is lowered, and the production efficiency is higher.

The invention discloses a gas compressor with damping boss guide vanes. The gas compressor is composed of a machine body assembly, a supercharging device and a servo motor. The supercharging device isinstalled between a gas inlet and a main gas chamber of the main body assembly, gas supercharging is achieved, the supercharging process is stable, energy consumption is low, and high supercharging is achieved according to practical requirements. The servo motor is installed on the outer wall side of a shell. The guide vanes adopted in the gas compressor are simple in structure, damping bosses inthe middles of the guide vanes and the vanes are assembled to be in an annular shape to restrict each other, rigidity is increased, the inherent frequency of the vanes is changed, the bending torsional stress of the roots of the vanes is reduced, damping boss combined faces of the guide vanes are sprayed with wear resisting alloy, and the damping effect can be achieved during vibration of the guide vanes. Impellers adopted in the gas compressor are large in gas suction amount, low in noise, high in working efficiency, no prone to deformation and damage and long in service life, flow equalizing processing for gas suction and gas exhaust can be achieved, and balance of gas pressure in the shell is ensured.

The invention relates to the field of air purification, and aims to provide a large-scale clean wind generating system and a clean wind generating method. A large-scale clean wind generation system and clean wind generation method, including: a clean air pipe composed of an air inlet diversion section, a dust removal diversion section and a jet outlet section connected sequentially from front to back, several of which are arranged in the dust removal diversion section The flow equalizers at the front and along the circumference of the axis of the dust removal and diversion section are arranged in sequence on the rear side of the flow equalizer, the wind generating device, the spray assembly, and several return pipes that pass through the lower side of the side wall of the dust removal and diversion section. A spray purification device connected to the spray assembly and the return pipe group respectively. The large-scale clean air generation system can achieve large-scale improvement of the air environment in a wide range.

Disclosed is a method for controlling brakes in a trailer vehicle comprising a pneumatic brake system, service brakes and an electronic brake system with anti-lock control, wherein at least one axle of the trailer vehicle is fitted with spring-loaded brakes and revolution rate sensors. The method comprises: monitoring with the electronic brake system whether there is a braking demand, monitoring with the electronic brake system whether at least one wheel of at least one axle is locking up, and if there is no braking demand and at least one wheel of the at least one axle is locked while traveling, controlling the pneumatic braking system with the electronic brake system to pressurize the spring-loaded brakes and to brake the trailer vehicle by the service brakes automatically and with anti-lock control. A valve arrangement is also disclosed.

The invention belongs to the field of fuel cell testing, discloses a system and a method for improving gas flow control lag of a fuel cell, and aims to solve the problem of transient data difference, namely flow lag, between a gas supply flow and an actual gas receiving flow of an electric pile in dynamic testing of the fuel cell. According to the invention, the accuracy and response speed of gas flow supply can be improved, and particularly for small-flow testing, the problem of buffer lag of process components of gas supply management is reduced so that the flexibility of a test design and the authenticity of test results are improved, hunger can be reduced, and the safety of the cell under test conditions is improved. According to the invention, deeper technical support is provided for dynamic operation and test research of the cell.

The invention discloses a self-pressurizing device for an automotive liquefied natural gas cylinder. The gas cylinder self-pressurizing device comprises an automotive liquefied natural gas cylinder, a liquid outlet stop valve, an emergent cut-off valve, a vaporizer, a check valve and a pressurizing valve and further comprises an absorption gas storage device and a gas phase stop valve, wherein the automotive liquefied natural gas cylinder is provided with a liquid outlet connector and a gas inlet connector, and the liquid outlet connector, the liquid outlet stop valve, the emergent cut-off valve and the vaporizer are sequentially communicated in series through pipelines; an outlet of the vaporizer is connected with two pipelines, one pipeline is communicated with an engine system, and the other pipeline is sequentially communicated with the check valve, the absorption gas storage device, the pressurizing valve, the gas phase stop valve and the gas inlet connector in series; and when the pressure of gas in the automotive liquefied natural gas cylinder is higher than the set pressure of the check valve, the check valve is opened. The self-pressurizing device can automatically pressurize the gas cylinder rapidly, continuously and stably in the running process of an automobile and accordingly supply certain-pressure fuel to the engine system uninterruptedly so as to achieve the purpose of ensuring automobile safe and stable running.

The invention relates to an airbag-type rapid pressure increase or decrease control system in an elevator car. The airbag-type rapid pressure increase or decrease control system is used for controlling the air pressure in a car of a nearly-closed elevator, and is characterized by comprising a gas generator, a tubing group, a valve group, an airbag, an air pressure detection device and a control device, wherein the pressure of air in the elevator car is controlled to be rapidly decreased or increased during an ascending or descending process of the elevator by virtue of rapidly inflating or deflating the airbag, so that the air pressure in the elevator car is controlled. Compared with the prior art, the airbag-type rapid pressure increase or decrease control system is capable of rapidly increasing or decreasing the pressure of the elevator car, thus improving the discomfort caused by ear pressurization of passengers in the ultra high-speed elevator car during the ascending or descending process.

The invention relates to a pressure relief device for an ultrahigh pressure sterilization apparatus. The pressure relief device comprises an ultrahigh pressure cabin, at least an ultrahigh pressure source, at least a pressure sensor, at least a decompression valve and a control module. the invention is characterized in that ultrahigh pressure in the ultrahigh pressure cabin reaches a preset threshold value under pressurization of the ultrahigh pressure source; the control module gives instructions to the decompression valves to carry out at least one fast pressure relief on the basis of the preset threshold value of the ultrahigh pressure in the ultrahigh pressure cabin monitored by the pressure sensor such that ultrahigh pressure inside the ultrahigh pressure cabin is suddenly reduced. The decompression valves are arranged inside end caps for sealing two sides of the ultrahigh pressure cabin. The decompression valve comprises at least two decompression disks which are coaxially arranged and close fit with each other. At least two of the decompression disks make decompression areas on the decompression disks to be superposed or separated in an independent rotating mode so as to carry out pressure relief or pressure sealing. Pressure in the ultrahigh pressure cabin changes stably, and service life is prolonged.

A drip disposal system includes a fluid source including a pump for cyclically pumping fluid from the fluid source, a set of drip field lines connected to the fluid source for dispersing at least some fluid provided by the source across an area of ground, and a return line for returning fluid not dispersed by the set of drip field lines to the fluid source. A blow-out valve is connected to the return line for controlling fluid flow through the return line during each cycle, the blow-out valve opening when a pressure of the fluid flowing through the return line exceeds a selected minimum pressure and closing when the pressure of the fluid flowing through the return line goes below the selected minimum pressure.

A gas feed element for feeding gas into a dust-like loose material having a high permissible differential pressure in respect of the thickness of the gas feed element and a high operating temperature range is provided. The gas feed element has a support plate having openings and is arranged on the side of the filter material facing the gas flow and on the side of the filter material facing away from the gas flow. The gas feed element permits rapid pressurization of a pressure vessel containing a stock of coal dust. Particular configurations of the filter material are provided by metallic filtration mesh with or without support mesh, sintered metal and sintered polymer, in each case having a filter fineness of from 5 μm to 1000 μm.

A pressurization oil tank for an injection molding machine comprises an oil tank for oil storage. The tank body is provided with an air inlet, an oil suction opening and an oil return opening. The air inlet communicates with an air supply device, and the oil suction opening communicates with the oil suction end of a servo pump. The air supply device comprises a pneumatic dual linkage part and a pneumatic reversing valve, and the air inlet communicates with an outside compressed air source sequentially through the pneumatic reversing valve and the pneumatic dual linkage part. The pressurization oil tank has the following beneficial effects that the structure is simple and reasonable, the air pressure in the oil tank is larger than the outside air pressure through the air supply device, the pressure of the oil suction opening of an oil pump is improved, and therefore it can be ensured that a hydraulic system of the injection molding machine reliably operates in plateau sections, the noise of the oil pump can be reduced, and the service life of the oil pump can be prolonged; the tank body in the structure is totally closed, and the cleanliness of oil can be effectively improved; and it can be ensured that self suction of the oil pump is smooth in the plateau sections, in addition, the oil suction pipe diameter can be optimized, and the functions of reasonable layout and structure optimization can be achieved.

The invention provides a heat self-balancing metal hydride hydrogen supercharging device. The device comprises two or more metal hydride compression units, a heat exchange unit and a control unit. The outer walls of the metal hydride compression units are wrapped with the heat exchange unit. Automatic operation of the metal hydride hydrogen supercharging device is achieved through the control unit. The hydrogen supercharging device adopts the electric heating mode, supercharging is rapid, the efficiency is high, a system is free of noise, easy to operate and convenient to maintain, and the device has good market application prospects.

The invention discloses a dual-drive turbine, and belongs to the technical field of turbochargers. The dual-drive turbine comprises a turbine body arranged in a volute, an air inlet channel A and an air inlet channel B which are axially parallel are formed in the volute, the turbine body comprises a closed flow guiding face, a hub and a plurality of blades bent towards the same side, and the lowerends of the blades are fixed to the upper surface of the closed flow guiding face; and a flowing channel interval wall is arranged between the air inlet channel A and the air inlet channel B, a driving face A and a driving face B facing the hub are formed on the surfaces of the blades along air flows flowing out of the air inlet channel A and the air inlet channel B, the edge of the driving faceA abuts against the flowing channel interval wall, the air flow, flowing to the driving face A, of the air inlet channel A forms the air flow A, the air flow, flowing to the driving face B, of the airinlet channel B forms the air flow B, and the air flow A and the air flow B form dual-driving on the turbine. The air flow B can prevent a turbulent flow from being formed at the bottoms of the blades, and the driving force of the turbocharger and the working power of the turbine are increased.

The invention discloses a full-automatic few-leaf-spring long cone rolling production line and particularly relates to an automatic few-leaf-spring long cone rolling production line, belonging to the field of metal product producing and machining. The full-automatic few-leaf-spring long cone rolling production line is characterized by being equipped with an automatic material distributor, a heating furnace, scale removing equipment, an automatic loading and unloading machine, a long cone plate spring roll, a straightening machine and reshaping equipment in sequence, wherein each production equipment is connected through a conveying device. Compared with the current equipment conditions, the brand-new automatic material distributor and the scale removing equipment are relatively high in efficiency. Each part of the production line is digitally and precisely controlled, so that the high yield and the low cost operation of the production line are realized. The full-automatic few-leaf-spring long cone rolling production line is simple in structure, not only practical, but also capable of lowering the production cost and suitable for being popularized in the industry.

The invention discloses a rock burst gas-containing coal breaking simulation experiment system. The rock burst gas-containing coal breaking simulation experiment system comprises an electromagnetic pressure boosting mechanism, a hydraulic pump station, an axial pressure device and a coal sample storage device; the hydraulic pump station provides hydraulic oil for generating a confining pressure tothe coal sample storage device; the hydraulic pump station provides the hydraulic oil for generating axial pressure to the axial pressure device; the hydraulic pump station provides the hydraulic oilfor pressurization to the electromagnetic pressure boosting mechanism; the electromagnetic pressure boosting mechanism provides the hydraulic oil for simulating the rock burst to the axial pressure device; and the axial pressure device provides impact force of the rock burst to the coal sample storage device. The invention also discloses a corresponding coal breaking experimental method. The invention does not need to lift heavy objects, can release greater pressure and easily and precisely adjusts the impact force, and the speed of releasing the impact force is faster, so that the inventioncan perform the rock burst gas-containing coal breaking simulation experiment more closely with the actual situation; and it is convenient to adjust the confining pressure, axial pressure and impact force, therefore, the invention is suitable for rapidly performing simulation experiments repeatedly under different conditions.

The invention relates to a method and a device for liquefying low-boiling-point gas and recovering BOG (Boil Off Gas) of a cryogenic vessel. The method and the device are characterized in that low-pressure normal-temperature gas to be liquefied is compressed into medium-pressure gas through a compressor; the medium-pressure gas is cooled into medium-pressure normal-temperature gas through a common heat exchanger; then the medium-pressure normal-temperature gas is subjected to flyback heat exchanging with cryogenic gas which is pumped from a gas phase space of a cryogenic liquid vessel through an undercooling heat exchanger so as to obtain medium-pressure undercooling gas; the medium-pressure undercooling gas is subjected to throttling and pressure reduction to be further cooled; the cooled gas is charged into liquefied liquid in the cryogenic vessel to be mixed with the cryogenic liquid, and the gas can directly exchange heat with the cryogenic liquid and then be condensed so as to achieve liquefying; some non-condensed gas which absorbs the cold energy of the cryogenic liquid is pumped into the undercooling heat exchanger from the top part of the vessel; the normal-temperature medium-pressure gas is converted into normal-temperature gas after cooling and compressing; finally, the normal-temperature gas is charged into the compressor. The method and the device are applicable to BOG liquefying and recovering of the cryogenic vessel in case of no fresh gas, and fast pressurizing of the cryogenic vessel when the gas reversely flows. The method and the device are simple in process, low in cost, reliable to implement and run, and low in system energy consumption.

An energy-saving type precise pressure regulating valve improved structure comprises a body. A main membrane and a balance membrane are arranged in the body. The main membrane is mainly in linkage with an overflow pipe, and the balance membrane is in linkage with a pressure regulating straight rod. When gas flow enters the body, through a channel, a feedback channel and a pressure regulating channel which communicate with one another, by means of cooperation of a feedback channel throttling hole and steel balls in the feedback channel, pressure fluid is controlled to circulates unidirectionally, and through cooperation of a straight rod rubber coating on the pressure regulating straight rod and a membrane rubber coating on the main membrane, the pressure fluid circulates more rapidly as awhole; and besides, through cooperation of the overflow pipe and the overflow hole, rapid pressurization and decompression can be conducted, and high-precision output pressure can be provided.

The invention discloses a vehicle-mounted portable soft oxygen chamber, relates to the technical field of oxygen chambers, and solves the problems that an existing hyperbaric oxygen chamber is inconvenient to carry and limited by power supply, normal use of the hyperbaric oxygen chamber is difficult to guarantee in emergency, and miniaturization and popularization development of the hyperbaric oxygen chamber is limited. According to the technical scheme, the oxygen cabin is characterized by comprising oxygen generation equipment and an oxygen cabin body, the oxygen generation equipment is detachably connected with the oxygen cabin body through a pipeline, and an inverter is arranged between the charging end of the oxygen generation equipment and a load; the oxygen cabin body comprises a folding frame and an oxygen cabin bag fixedly connected with the folding frame; a containing cavity used for containing the folded oxygen cabin body is formed in the oxygen generation equipment, the carrying size of the oxygen cabin can be reduced, the detached oxygen cabin is placed in an automobile to be carried and used in cooperation with an automobile power source, limitation of the power supply requirement is avoided, a medical environment is conveniently and timely provided for a user, and a foundation is laid for miniaturization and popularization development of the oxygen cabin.

The invention discloses an electronic control electromagnetic relief valve with good sealing performance. The electronic control electromagnetic relief valve comprises a valve body with an electronic control socket, a static iron core is arranged at the bottom of the valve body, a magnetic conductive plate is arranged at the periphery of the bottom of the static iron core, a coil holder matched with the static iron core is arranged at the upper part of the magnetic conductive plate, and a coil winding is arranged at the upper part of the coil holder; a movable iron core corresponding to the static iron core is arranged at the top of the valve body, the top of the movable iron core is fixedly connected with a sealing cover through a movable iron core gasket, and a magnetic conductive cover plate matched with the magnetic conductive plate is arranged at the periphery of the middle part of the movable iron core; a ring body is embedded at the periphery of the top of the sealing cover; and the periphery of the ring body is wrapped with a heat-resistant rubber layer or a polytetrafluoroethylene layer. After the exterior of the ring body provided by the invention is wrapped with the heat-resistant rubber layer or the polytetrafluoroethylene layer, the sealing performance and the using condition adaptability of an original sealing cover are improved completely.

The invention relates to a cleaning method of a cooking utensil with a cooking function, which comprises the following steps: a pickling step: a liquid supply mechanism introduces acid water into a steam generator, a heating body controls the acid water in the steam generator within a preset temperature range, and the acid water dissolves scale in the steam generator; and a cleaning step: the liquid supply mechanism introduces clear water into the steam generator, the heating body heats the clear water introduced into the steam generator until the clear water is boiled, and the boiled clear water flushes acid water dissolved with scale into the cooking cavity from the steam outlet pipe. The water scale in the steam generator can be effectively removed.