30results about How to "Guaranteed cooling speed" patented technology

An oil bath lubrication device for an axial big load carrying motor comprises a thrust bearing, a steady bearing, a bearing inner cap, and an end closure. The device is characterized in that the end closure is a larger aspect ration end closure and the thrust bearing is a spherical roller thrust bearing; wherein a shaft washer of the spherical roller thrust bearing is arranged on a motor shaft and a housing washer of the spherical roller thrust bearing is arranged in a bearing block inside the large aspect ration end closure; the steady bearing is embedded in the large aspect ration end closure and is arranged on the shaft end of the motor shaft which is arranged on the lower part of the spherical roller thrust bearing; a bearing housing is formed between the spherical roller thrust bearing and the steady bearing; the bearing inner cap is above the spherical roller thrust bearing and is arranged on the upper part of the large aspect ration end closure; an oil chamber is formed betweenthe bearing inner cap and the large aspect ration end closure and is internally provided with liquid lubricant; and the bearing block between the bearing housing and the oil chamber is provided with a plurality of oil passage through holes.

The invention relates to the technical field of refrigerators, in particular to a control method for a refrigerator. The control method for the refrigerator comprises the steps that different control modes are operated according to different environment temperatures, refrigeration of a refrigerating chamber is conducted preferably when the environment temperature is smaller than a set environment temperature value as well as when the environment temperature is not smaller than the set environment temperature value and the temperature in a freezing chamber is smaller than a set freezing temperature value, and refrigeration of a temperature-variable chamber is conducted after refrigeration of the refrigerating chamber is completed; and whether refrigeration of the refrigerating chamber is needed or not is monitored while refrigeration of the temperature-variable chamber is conducted, and a throttling mechanism of the freezing chamber is controlled to be connected with a freezing refrigeration circuit when both refrigeration of the refrigerating chamber and refrigeration of the temperature-variable chamber are not needed, so that independent refrigeration of the freezing chamber is conducted. When the environment temperature is larger than the set environment temperature value and the temperature in the freezing chamber is not smaller than the set freezing temperature value, refrigeration of the refrigerating chamber is conducted after the refrigerator operates in the initial operating mode. According to the control method for the refrigerator, a compressor operates under a small load condition, so that damage caused by liquid impact is avoided, the refrigerating speeds of all the chambers are guaranteed, and the system stability is improved.

The invention relates to an ancient irregular cold heading part which is characterized by comprising an irregular cold heading part body, wherein the irregular cold heading part body takes the shape of a column; an annular convex ring is arranged at the middle end of the irregular cold heading part body; the annular convex ring comprises two side walls and an upper wall; connecting parts of the two side walls and the upper wall are arc-shaped surfaces; connecting parts of the two side walls and the irregular cold heading part body are arc-shaped surfaces. The ancient irregular cold heading part has the beneficial effects that the annular convex rings and circular through holes are formed in the ancient irregular cold heading part, the connecting parts of the two side walls and the upper wall are arc-shaped surfaces, the connecting parts of the two side walls and the ancient irregular cold heading part are arc-shaped surfaces, the left end and the right end that are matched with the circular through holes at the edge of the irregular cold heading part body are inclined surfaces respectively. When being connected and mounted with a rubber part, a guide function is achieved, convenience in mounting is achieved, and meanwhile, the rubber part can be prevented from being scratched.

The invention relates to a methanol cooler, which comprises a cylinder body and supporting feet; a first pipe box is arranged at one end of the cylinder body; a second pipe box is arranged at the other end of the cylinder body; the first pipe box and the second pipe box respectively The two ends of the cylinder are closed; the supporting feet are placed at the lower end of the cylinder; the first pipe box is provided with a water outlet; the second pipe box is provided with a water inlet; the cylinder is provided with a discharge port; There is a liquid inlet; a plurality of baffles are arranged in the cylinder; a plurality of heat exchange tubes are arranged in the cylinder; two first chutes are arranged in the first tube box, and a second chute is arranged between the two first chutes. One sliding plate, the first sliding plate can block the heat exchange tube; the first tube box is provided with two second chute, and the second sliding plate is arranged between the two second chute, the second sliding plate can block the heat exchange tube . Compared with the prior art, the present invention can guarantee the water flow velocity of the cooling water, improve the heat dissipation efficiency of the methanol, and can also avoid the backflow of warm water.

The invention belongs to the technical field of electric meter boxes, and specifically relates to an intelligent electric meter box, which includes a box body; an electric energy meter is installed in the box body, a water storage tank for storing rainwater is arranged on the top of the box body, and a water-absorbing sponge is arranged in the water storage box; There is a group of swing rods hinged on the side of the body, one end of the swing rod located in the box is in the shape of a plate, the end of the swing rod located outside the box is provided with a water storage tank, and the bottom of the water storage tank is connected to the corresponding position of the swing rod with a water outlet pipe; the structure of the invention is simple, Under the action of horizontal wind force, the rainwater drips on each swing rod outside the box body, and the rainwater slowly collects into the water storage tank. The falling of the water storage tank drives the swing rod at one end of the box body to speed up the movement near the electric energy meter in the box body. The air flows, thereby reducing the temperature of the electric energy meter and ensuring the accurate and normal measurement of the electric energy meter.

The invention relates to casting machining equipment and a machining process, and belongs to the technical field of casting. The casting machining equipment comprises an upper shell mold and a lower shell mold aligned up and down; the upper shell mold and the lower shell mold are filled with molding sand; mounting grooves are formed in two opposite sides of the upper shell mold and two opposite sides of the lower shell mold; cooling pipes are inserted in the mounting grooves; the cooling pipes are vertically spiral in corresponding areas of the upper shell mold and the lower shell mold, and are embedded in the molding sand; the cooling pipes communicate with a water pump and a water tank for providing cooling water; and the casting machining equipment accelerates the cooling of castings toachieve the effect of improving the casting efficiency.

The invention discloses a cast thermal insulation ground pit, comprising a ground pit body with a movable cover plate built with concrete. A bearing thermal insulation layer is applied on the bottom of the ground pit, and a flame-proof thermal insulation layer is disposed on the side wall. A plurality of vents with covers are disposed on the movable cover plate, and an air vent and an air-return vent, both of which communicate with a circulating hot-air device via an air pipe and an air return pipe, are disposed on the side wall of the ground pit. Not only the empty cast thermal insulation ground pit can be heated to a required temperature quickly and evenly before the casts are hung in, but also the temperature around the cast can be kept even to the end after the casts are hung in, and cooling-curve request is satisfied completely. When the ground pit is used, the heating-up temperature is adjustable in the range of 0-650 DEG C, the heating-up velocity is adjustable in the range of 50-100 DEG C / h, the cooling velocity is adjustable in the range of 10-50 DEG C / h, and temperature uniformity in pit is +-20 DEG C. Case opening period is shortened by 30 days, so that the production period is greatly shortened.

The invention discloses a control method of a frequency-variable refrigerator, a storage medium and a refrigerator. The control method comprises the steps that after a compressor of the refrigerator is started, a first temperature of a freezing chamber of the refrigerator is acquired at set intervals, and is compared with an upshifting temperature; and when the first temperature is greater than or equal to the upshifting temperature, the operation gear of the compressor is raised so as to raise the rotating speed of the compressor. The rotating speed of the compressor is adjusted according to the compared result of the temperature of the freezing chamber and the upshifting temperature, in this way, the frequency-variable compressor can be controlled to raise the speed or be shut down according to the current actual temperature of the freezing chamber timely, thus the refrigeration requirement and the refrigeration speed of the refrigerator are ensured, optimal energy consumption of the refrigerator can be achieved when the use rate of the refrigerator is low, and the purposes of energy conservation and emission reduction are achieved.

The invention relates to the technical field of household electric appliances, in particular to a fan rotation speed control method, a control system and a water tank. The method comprises the following steps: receiving fan starting request; judging needs, on refrigerating capacity and air quantity, of a refrigerator compartment, and selecting preset fan target voltage according to the needs, on refrigerating capacity and air quantity, of the refrigerator compartment; and regulating current working voltage of a fan to be fan target voltage. According to the fan rotation speed control method, need conditions, on refrigerating capacity and air quantity, of the refrigerator compartment are taken into consideration, different fan target voltage is selected according to different refrigerating capacity and air quantity needs, and fan rotation speed is controlled by regulating working voltage of the fan, so that the control method is simple, a cooling rate can be improved, refrigerator starting-stopping time can be optimized, and the problem that part of cooling capacity of a compressor is wasted due to the fact that fixed fan rotation speed is adopted for supplying air in the prior art is solved, and therefore, integral power consumption of a refrigerator system is reduced.