87results about How to "Effective partition" patented technology

The invention discloses a bone conduction receiver with an air conduction effect. The bone conduction receiver comprises a shell, a vibrating diaphragm assembly, a conduction rod, an electromagnetic conversion device and a micro circuit board, wherein at least one through hole is formed on the shell; and at least one opening and closing device or a sound transmission tube of at least one sound transmission hole opening and closing device is arranged on the through hole. Moreover, the opening and closing device or the sound transmission hole opening and closing device comprises at least one cover plate, wherein the cover plate covers the through hole or a sound transmission hole of the sound transmission tube and is rotationally connected with the shell or the sound transmission tube. The application range of the bone conduction receiver can be enlarged, so that the listening of hearing handicapped is enriched, and the life of the hearing handicapped is also enriched; and the bone conduction receiver can be used for persons with normal hearing besides the hearing handicapped.

A cooling container includes a coolant container (20) for accommodating an object to be cooled (90) and a liquid coolant (60) in the inside, a lid member (30) capable of closing the upper opening of the coolant container, a cooling means (40) hung from and supported by the lid member and having a cooling section at the lower end, and electric current leads (91) hung from and supported by the lid member, for making electric current flow into the object to be cooled inside the coolant container. The electric current leads each have a thermal resistance section (92) having a higher thermal resistance than the surrounding portions, at a position above the liquid surface of the liquid coolant in the coolant container. Between the thermal resistance sections and the cooling section of the cooling means, a partition section (50) made from a heat insulation material is provided such that the lower end of the partition section is below the thermal resistance sections. As a result, the effect of penetrating heat can be prevented to allow the inside of the coolant container to be efficiently cooled.

The invention discloses a swash-plate type hydraulic plunger motor or pump immersed in water for use. The swash-plate type hydraulic plunger motor or pump immersed in water for use comprises a main shaft (1), a rotating sealing component (2), a shell (4), a swash plate (6), a plunger return mechanism (7), a plunger (8), a cylinder body (9), a valve plate (10) and an end cover (12), and is characterized in that the main shaft (1) is supported by at least three bearings coaxially installed: the bearing A (3), the bearing B (5) and the bearing C (11), at least two bearings in the three bearings are centripetal thrust bearings, and installation directions of the two centripetal thrust bearings are opposite. Two of the three bearings are installed near the outward-extended end of the main shaft (1) and arranged between the rotating sealing component (2) and the swash plate (6). In the swash-plate type hydraulic plunger motor or pump immersed in water for use, the main shaft can bear large axial tension and large axial thrust, and be immersed into deep water for use. An impeller can be directly installed on the main shaft so as to simplify structure, and meanwhile, through the bi-directional pressure bearing sealing component, the effect that water and hydraulic oil can be efficiently insulated when the product is used in deep water can be guaranteed.

The invention belongs to the technical field of blast furnace smelting, and in particular relates to a method for maintaining and cooling a hot air duct system, comprising the following steps: step S1, after the blast furnace is completely stopped for wind, remove the tuyere blowing pipe and the elbow, and install the middle section blind plate; step S2, Turn on the combustion-supporting fan to cool down the reverse supply air. The cooling route is followed by the combustion-supporting fan, the combustion-supporting air pipe, the reverse supply air pipe, the mixing air pipe, the hot air main pipe, the hot air surrounding pipe and the reverse flow pipe, until the temperature drops to the first set value; step S3, close the air mixing valve, turn on the first axial flow fan to cool down until the cooling rate is less than the second set value; Step S4, turn on the second axial flow fan to cool down until the temperature drops to the third set value; Step S5, Install hot blast valve blinds, mixing valve blinds, and middle section blinds; check whether the piping system meets the operating conditions. The maintenance and cooling method of the hot air duct system of the present invention greatly improves the cooling efficiency, does not need to draw water in the cooling process, does not cause damage to refractory materials, and improves the safety guarantee capability of construction operations.