31results about How to "Temperature is not affected" patented technology

The present invention relates to a consecutive aging test method, which is an integrated aging test for modularized products between whole-machine assembling process and packaging and delivery process. Wherein the consecutive aging test method comprises the following steps: inserting N modularized products into a test cabinet in turn, and carrying out the integration aging test; wherein N is a natural number and the above operation is a rounded down operation, T1 is the time for processing one modularized product by a pre-process of the integration aging test, and T2 is the time for the integration aging test. By integrating pre-aging test, aging test and post-aging test partly or fully; and making the time for rotating one modularized product by the integration aging test match with the time for processing one modularized product by the pre-process of the integration aging test, the method avoid the wait and accumulation of modularized products; not only realizes line production, but also avoid the large floor space occupation and manual operation caused by the flow line.

The invention discloses a rapid-cooling dual-laser printing device in the field of intelligent manufacturing, which includes a working cavity installed on a frame, an insulating cavity is arranged above the working cavity, and a laser head is arranged on the top of the insulating cavity. A powder bed is provided at the bottom, and a powder spreading mechanism for laying powder on the powder bed and a heating mechanism for heating the heat preservation chamber are arranged inside the heat preservation chamber; a support plate for placing workpieces is arranged in the working chamber, The support plate is fixedly installed on the lifting mechanism, and the support plate slides up and down along the inner wall of the working cavity; a cooling mechanism is arranged in the working cavity, and the cooling mechanism is used to cool down the molded area of ​​the workpiece during workpiece processing. The invention can quickly cool down the molded area of ​​the workpiece while the equipment is printing the workpiece, and does not affect the temperature of the unmolded area of ​​the workpiece, and does not cause the powder to fly, so that the workpiece can be cooled synchronously when printing is completed, and the molding efficiency of the workpiece is improved. .

The invention relates to a purifier and provides a fresh air purifier. The fresh air purifier comprises a purification module, a fresh air module, a fresh air pipe module, a composite filter net, HEPA filter nets, a motor and a centrifugal fan; the purification module is arranged on the fresh air module; the fresh air pipe module communicates with the fresh air module; supporting columns and an upper contact are arranged at the bottom of the purification module; supporting seats corresponding to the supporting columns and a lower contact corresponding to the upper contact are arranged at the upper part of the fresh air module; and the composite filter net, the HEPA filter nets, the motor and the centrifugal fan are arranged in the purification module. The purification module of the fresh air purifier can be taken down easily and used alone and can be moved conveniently and rapidly, and purification space can be changed at will.

The invention discloses a power distribution cabinet. The power distribution cabinet comprises a cabinet body, wherein a ventilation hole is formed in the top of the cabinet body, and one circle of first mounting holes are formed in the periphery of the ventilation hole; dense screw holes are formed in a backing plate of the cabinet body, the back of the cabinet body is connected with a back cavity, and a frame type sealing strip is arranged between the backing plate and the back cavity; and a fan is arranged at the lower part of the back cavity. According to the power distribution cabinet disclosed by the invention, airflow is blown out from the back cavity and the screw holes in the backing plate when the fan rotates forwards and supplies the air inwards, and the blown-out wind is directly blown onto electrical components, so that the airflow can be pushed toward the ventilation hole in the top to be blown out, and heat dissipation effect is better. The invention also discloses a temperature control system and a temperature control method of the power distribution cabinet, when the temperature of the power distribution cabinet is lower than TA, the power distribution cabinet at higher temperature can carry out temperature compensation on the power distribution cabinet at low temperature through an air duct for preventing condensation, so that the temperature of the power distribution cabinet at the low temperature rises; and the temperature in the power distribution cabinet can be better controlled, so that the power distribution cabinet can meet temperature demand during operation, the use safety is improved, and the service lives of the electrical components are prolonged.

The invention discloses a heat treatment furnace for steel wire heat treatment, and relates to the technical field of steel wire production. The heat treatment furnace comprises a furnace body shell,a steel wire inlet and a steel wire outlet, a ceramic fiber plate is adopted as the lining for the structure of the furnace body, a light brick is laid on the ceramic limiting plate, the material price of the heat treatment furnace is low, so that the price of the finally built heat treatment furnace can be effectively reduced; in terms of energy consumption, the power distribution cabinet controls on-off and heating temperature of a plurality of sets of heating resistance wires, so that the energy consumption of the heating resistance wire can be effectively controlled; and furthermore, the structure of a heating cavity of the heat treatment furnace can be effectively controlled, the heat preservation and the heat insulation of the heating cavity can be effectively realized under the limitation of the light brick and a heat insulation material, the heat in the heating cavity can be well controlled, and the problem that the energy consumption is increased due to the fact that heat is leaked is avoided.

A constant low temperature storage system and a method of removing dewar mist. The constant low temperature storage system comprises a dewar, at least one refrigerant inlet pipe, an airtight blocking device, at least one external vent pipe and at least one internal vent pipe,, wherein a sample storage room and a refrigerant room are arranged in the dewar; the inlet pipe is use for injecting a refrigerant from the dewar to the refrigerant room; the airtight blocking device is arranged between the sample storage room and the refrigerant room; the external vent pipe is used for venting gas in the refrigerant room out of the dewar; and the internal vent pipe is used for leading cool air in the refrigerant room into the sample storage room. The method of removing the dewar mist includes the steps that dry-filtered air is pressed from the external vent pipe and / or the refrigerant inlet pipe into the refrigerant room; and the gas flows from the internal vent pipe into the sample storage room to remove the mist and / or accelerate refrigeration of a sample after the gas foams in the refrigerant. The constant low temperature storage system and the method of removing the dewar mist can prevent a large quantity of cool air from entering the sample storage room in the process of adding the refrigerant and guarantees a constant storage temperature, and accordingly the service efficiency of the refrigerant is improved. Meanwhile, by pressing the dry-filtered air into the system, the mist in the sample storage room can be removed, and / or the sample can be refrigerated rapidly.

The invention relates to a copper plant low-grade waste heat recovery system for urban central heating. The copper plant low-grade waste heat recovery system is characterized by comprising a primary network circulating pump and a copper plant waste heat recovery device, wherein primary network return water from a primary pipe network flows into the copper plant waste heat recovery device through the primary network circulating pump, the copper plant waste heat recovery device collects waste heat in a copper plant, the waste heat is used for heating the primary network return water, and after the temperature rises, the primary network return water is supplied to a user in the form of primary network water supply; the copper plant waste heat recovery device comprises an austenitic furnace wall waste heat recovery device, a converter body waste heat recovery device, a drying tower waste heat recovery device, an absorption tower waste heat recovery device, a slag pool waste heat recovery device and a copper plant steam waste heat recovery device, wherein the austenitic furnace wall waste heat recovery device, the converter body waste heat recovery device and the drying tower waste heat recovery device are arranged in parallel, and the absorption tower waste heat recovery device, the slag pool waste heat recovery device and the copper plant steam waste heat recovery device are connected in series with the three waste heat recovery devices which are connected in parallel. The copper plant low-grade waste heat recovery system can be widely applied to recovery of low-grade waste heat in the copper plant.

The invention discloses a constant temperature and humidity cell culture box. The incubator of the present invention includes a box body, a box door, a chamber, a water heating mechanism, a humidifying plate, a support rod, a humidity maintaining mechanism, and a CO 2 Generator, No. 1 Exhaust Pipe and CO 2 Concentration maintenance mechanism, one side of the box body is movably connected to the box door, there are three chambers with equal volume inside the box body, a water heating mechanism is installed in the side wall of the box body, each chamber is equipped with a humidifying plate, and the middle of each chamber Both ends are fixedly connected to one end of the support rod, and the other end of the support rod is fixedly connected to the humidification plate. The humidification plate is a cube with an opening on one side. The inside of the box is equipped with a humidity maintaining mechanism. 2 Generator, one end of No. 1 exhaust pipe is fixedly connected to CO 2 Generator, No. 1 exhaust pipe away from CO 2 One end of the generator is placed on the upper end of the box, and the inside of the box is equipped with a CO 2 Concentration maintaining mechanism, the box door is made of transparent material, and the box door is coated with light-shielding material. The invention is scientific and reasonable, simple in structure, and economical.

Provided is a method for quick forming of a hot metal sheet. The method relates to a technology for forming a metal sheet part, and solves the problem that the existing hot metal sheet forming technology cannot ensure that a blank is deformed under reasonable temperature and pressure conditions, thereby failing to realize precise and quick forming of a complex metal sheet part, especially a thin-walled part. The method mainly includes the following steps: step one, placing a metal sheet blank to be formed on a forming mold; step two, introducing high-pressure gases with equal pressures simultaneously into upper and lower enclosed cavities respectively formed by the metal sheet blank and the sealing mold, and the metal sheet blank and the forming mold; step three, heating the metal sheet blank to a preset forming temperature condition; step four, quickly releasing the high-pressure gas from the cavity formed by the metal sheet blank and the forming mold, such that the metal sheet blank bulges; and step five, discharging the gas from the cavity formed by the metal sheet blank and the sealing mold, and opening the mold to obtain a formed metal sheet part. The present invention is used for manufacturing a metal sheet part.

A low-cost preparation process of an environment-friendly high-temperature brick and the high-temperature brick. The preparation process includes steps of: 1) mixing the raw materials including, by weight, 18-22 parts of black mud, 18-22 parts of pressure-discharged mud, 55-65 parts of waste residue of refractory bricks, 0.03-0.05 parts of PVA, 0.4-0.5 parts of lignin, 0.75-0.81 parts of sodium metasilicate and 43-48 parts of water, ball-milling the mixture to form slurry, and spray-drying the slurry to obtain a high-temperature brick powder material; 2) placing the high-temperature brick powder material in a pressing mould to press-shape the high-temperature brick powder material, and sintering the material in a kiln to obtain a finish product. The high-temperature brick not only has high-temperature fireproof effect but also is higher in strength, can be repeatedly used, is greatly reduced in preparation cost, is more environment-friendly and energy-saving, and has simple preparationprocess.

The invention provides a refrigerator and a refrigerator control method. The refrigerator of the present invention comprises a freezing space, a refrigeration space, a variable temperature space, a compressor, a condenser, a freezing evaporator, a refrigeration evaporator, a freezing air duct and a refrigeration air duct, the outlet end of the freezing air duct communicates with the freezing space, and the refrigeration air duct The outlet end of the refrigerator is connected with the refrigerating space, and the refrigerator also includes: a temperature-variable air duct, which is arranged in parallel with the refrigerating air duct, and the outlet end of the variable-temperature air duct is connected with the variable-temperature space; between, used to blow the cold air generated by the refrigerating evaporator into the temperature-changing air duct and the inlet end of the refrigerating air duct; the refrigerating damper is arranged at the inlet end of the refrigerating air duct. According to the refrigerator of the present invention, the temperatures of the freezing space, the refrigerating space and the variable temperature space can be controlled independently, and the temperatures of the compartments are not affected by each other.