32results about How to "Solve the problem of uneven cooling" patented technology

A permanent magnet motor, a refrigeration compressor, and an air conditioning unit. A stator (20) and a rotor (30) are mounted in a housing (10) of the permanent magnet motor. An inner cavity of the housing (10) is partitioned to form a first inner cavity (10a) and a second inner cavity (10b). An axial ventilation hole (213) communicated with the first inner cavity (10a) and the second inner cavity (10b) is disposed on a tooth portion (212) of a stator core (21) of the stator (20), and the axial ventilation hole (213) is a taper hole extended along a height direction of the tooth portion (212). The width of one end, close to the head (212a) of the tooth portion, of the axial ventilation hole (213) is greater than the width of one end, close to the root (212b) of the tooth portion, of the axial ventilation hole (213). The taper hole can enable a fluid to fully exchange heat at the tooth portion (212) that generates heat most intensively, and can further enable residual paint in an immersion-painting process to be centralized to a narrow end of the ventilation hole under the action of surface tension, so that a wide end keeps clear.

A system and a method for the dry centrifugal granulation of high temperature liquid slag and exhaust heat recovery. The system comprises a liquid slag drainage system, a liquid slag buffering system, a liquid slag granulation and heat exchange system, a slag particle conveying system and an exhaust heat recovery system; the liquid slag drainage system comprises a slag groove (1), a baffle and a slag outlet (2); the liquid slag buffering system is composed of one or more independent slag containers, the slag container comprising structures such as a bag body (3), a bag cover (4), a slag pipe (5), and a stopper rod (6); the liquid slag granulation and heat exchange system is composed of one or more independent granulation and heat exchange systems which are arranged side by side in one or multiple rows, each granulation and heat exchange system being composed of a granulation bin (7), a centrifugal granulator (8), a movable bed (9) and a slag discharge device; the slag particle conveying system comprises a temperature-resistant conveyor belt (14) and a buffering material bin; the exhaust heat recovery system comprises a primary dust collector (15), an exhaust heat boiler (16), a secondary dust collector (17), an exhaust draught fan (18) and a chimney (19) which are connected in sequence.

The invention belongs to the field of wine brewing equipment, and in particular relates to a barrel type alcohol distillation system. The barrel type alcohol distillation system comprises distillationdevices and a collection box, wherein three distillation devices are arranged; the three distillation devices are connected through a serial connection manner; the collection box is used for collecting alcohol steam distilled by the distillation devices; each distillation device is of a round barrel shape; each distillation device is internally provided with an extruding unit and a distillation unit in sequence from top to bottom; each extruding unit is used for extruding fermented grains into the corresponding distillation unit; each distillation unit comprises a plurality of distillation barrels; the distillation barrels are fixed on the inner surface of a No. 1 side plate through a No. 1 mounting plate; a No. 1 interlayer is formed between the distillation barrels of each distillationunit; when the distillation devices are used for distilling the fermented grains, the No. 1 interlayer is fully filled with steam, and the humidity of the fermented grains in the distillation barrelsis increased, so that the dissolving efficiency of alcohol in the fermented grains is improved; the barrel type alcohol distillation system is mainly used for fermenting the solid-state fermented grains and distilling the alcohol; the alcohol distillation efficiency can be improved, and the production cost is reduced.

The invention relates to a hot rolling spray cooling method for a large cylinder, which is characterized in that an upper spray device and a lower spray device are manufactured; after a large cylinder is rolled, the cylinder is clamped by an upper roller and a lower roller, so that the cylinder is rotated by the driving of frictional force; additionally, the lower spray device extends into the cylinder, and the upper spray device is arranged outside the cylinder; the length of cooling water pipes on the upper spray device and the lower spray device is regulated, so that a connecting line of all of the cooling water pipes on each spray device near the wall end of the cylinder forms a semicircle shape which is concentric with the cylinder; and additionally, the quantity ratio of the cooling water pipes on an upper spray collecting plate and a lower spray collecting plate of the upper spray device and the lower spray device and the flow ratio of cooling water are regulated, so as to cool the inner and outer surfaces of the large cylinder at the same cooling speed after rolling. The hot rolling spray cooling method has the advantages that the problem of uneven cooling of the traditional cylinder heat treatment is solved, the cooling efficiency is increased, the coefficient of heat transfer of the surface of the cylinder is increased on the initial stage of cooling, and the surface quality of the cylinder is greatly increased.

The invention belongs to the field of brewing equipment, and specifically relates to an alcohol distillation device that is convenient for loading and unloading fermented grains, including a distillation device and a collection box. There are three distillation devices, and the three distillation devices are connected in series; The fermented grains are squeezed into the distillation unit; the distillation cylinder is fixed on the inner surface of the No. 1 side plate through the No. 1 mounting plate; when the distillation device is distilling the fermented grains, the No. 1 interlayer is filled with steam, which increases the distillation capacity. The humidity of the fermented grains in the barrel, the air pressure rod drives the No. 1 upper bottom plate and the No. 1 side plate to move in the vertical direction through stretching, and the motor drives the No. 1 lower bottom plate to rotate through the rotating shaft. The grains are transported to the recovery box; the air inlet is used to deliver air to the distillation unit to facilitate the discharge of the grains from the distillation unit; the invention is mainly used for automatic loading and unloading of the grains in the alcohol distillation device, which can improve the efficiency of alcohol distillation. Reduced production costs.

The invention discloses a drill steel cooling system which comprises a base, a worktable, an air cooling device, a propelling device, a positioning device, a temperature measuring device, a cooling device and a feedback device, wherein the temperatures of four joints A1, A2, A3 and A4 are regulated and controlled by the feedback device; three feedback devices are arranged in the axial direction toensure that the actual cooling temperature of the shaft is controllable. Temperatures at pints of corner angles are controlled precisely by means of a feedback system, so that the problem that the corner angles of the polygonal drill steel are not cooled uniformly is solved. The invention further discloses a cooling method of the drill steel. The feedback system of the method acts to the four joints A1, A2, A3 and A4 separately to control the size of a water flow precisely, so that the water is controlled precisely and the water consumption is reduced. In order to prevent a condition that theactual cooling temperature of the drill steel cannot reach the control temperature as the temperature of the surface of the drill steel raises again due to self-tempering of the drill steel, three feedback systems are uniformly distributed along the axial direction o the drill steel, so that the actual cooling temperature of the steel drill is controllable.