46results about How to "Meet long-term use requirements" patented technology

The invention relates to a high-temperature-resistant dust-proof motor, which belongs to the technical field of motors. The high temperature-resistant dust-proof motor comprises a stator, a rotor, a left end cover, a right end cover and an outer sleeve, and is characterized in that a fan mechanism comprises a group of fan blades, a movable dustproof ring and a fixed dustproof ring, wherein the movable dustproof ring is fixed with a rotor shaft, the fixed dustproof ring is fixed with the left end cover and matched with the movable dustproof ring, and the group of the fan blades are arranged on the movable dustproof ring at intervals. The high temperature-resistant dust-proof motor has the advantages of preventing dust impurities and water vapor from invading into the stator and rotor from the left end cover, ensuring the service life of the motor, not only ensuring good sealing property,for avoiding leakage and representing safety and being convenient to manufacture, but also protecting a stator winding from being invaded by cooling water, preventing water short-circuit, having good cooling effect, meeting the long-term using requirement under a high-temperature environment, enabling the whole structure to be simple, being convenient to manufacture and mount, and being convenient to maintain.

The invention discloses a vibration isolation device for a floating plate. The vibration isolation device comprises a sleeve (6), a locking backing plate (5), an upper bearing plate (3) and a base (15), wherein the inner wall of the sleeve (6) is provided with a spacing block shoulder (10); the locking backing plate (5) is fixed on the spacing block shoulder (10) through a connecting plate (5a); the locking backing plate (5) is matched with the lower surface of the spacing block shoulder (10); an adjustment backing plate (4) is arranged between the locking backing plate (5) and the upper bearing plate (3); the upper bearing plate (3) is connected with the base (15) through a gland cover (2); and an elastic element (14) is arranged in the gland cover (2). The vibration isolation device disclosed by the invention is concise in structure and convenient in installation, maintenance and disassembly, can be used for solving the problem that the rubber floating plate vibration isolator in the prior art is easy to age and has short service life. In addition, the vibration isolation device disclosed by the invention has good vibration isolation effect.

The invention discloses an automatic test device for simulating an ocean tide environment. A sea water circulating controller comprises a water inlet device and a water outlet device; a water inlet pump of the water inlet device and a water outlet pump of the water outlet device are variable-frequency water pumps; the water inlet device is communicated with a water inlet of a main corrosion working chamber and a water outlet of an auxiliary corrosion working chamber respectively; the water outlet device is communicated with a water outlet of the main corrosion working chamber and a water inlet of the auxiliary corrosion working chamber respectively; and a first flow sensor is arranged in the water inlet device, and a second flow sensor is arranged in the water outlet device. A sea water temperature controller is arrange at the bottom of the main corrosion working chamber; a low liquid level controller and a high liquid level controller are fixedly arranged in the main corrosion working chamber; an air blowing port of an air blowing device and an illumination device are positioned above the high liquid level controller; and the water inlet device, the water outlet device, the sea water temperature controller, the air blowing device and the illumination device are connected with the controller respectively. The automatic test device can effectively simulate the actual ocean tideenvironment.

The invention discloses a high-temperature-resistant motor, belonging to the technical field of motors. The high-temperature-resistant motor comprises a stator, a rotor, a left end cover, a right end cover and a jacket, and is characterized in that the jacket is provided with a first water cooling cavity; the left end of the first water cooling cavity is closed by a left space ring, and the rightend of the first water cooling cavity is closed by a right space ring; a first water inlet connector, a first water outlet connector and a power wire holder are arranged on the outer wall of the jacket in an extending way; the first water inlet connector and the first water outlet connector are maintained in a diagonal relationship and respectively communicated with the first water cooling cavity; and a winding outgoing line used for winding of the stator and isolated from the first water cooling cavity is formed in the first water cooling cavity and led to an outgoing line transition pipe ofthe power wire holder. The high-temperature-resistant motor has the advantages of being capable of guaranteeing good sealing performance, avoiding leakage and being safe, being capable of being convenient to manufacture, being capable of guaranteeing the stator winding from being intruded by the cooled water, being capable of preventing water short circuit, achieving a good cooling effect and meeting the long-term using requirement in a high-temperature environment, being capable of being convenient to manufacture and install, and being capable of being convenient to maintain due to the concise integral structure.

The invention discloses a device for controlling peculiar smell gas and a technology. The device is an automatic device for controlling various multi-layer processing units through a controller based on peculiar smell detecting data, in order to control communal facility environmental peculiar smell gas and an environmental technology. The device comprises a climate and weather simulating system, a controller, various communal facility site sensors and various multi-layer processing units, wherein the site sensors comprise an ammonia gas sensor, a hydrogen sulfide sensor, a carbon monoxide sensor, a carbon dioxide sensor, a wind speed sensor, a wind direction sensor, an environmental temperature sensor, a noise sensor, an ozone sensor, a toluene sensor, a formaldehyde sensor, a nitrogen dioxide sensor, a sulfur dioxide sensor, a brightness sensor, a humidity sensor, rain and snow sensors, a flowing data sensor and a sensor expanding unit; and various multi-layer processing units comprise an oxygenating unit, a humidifying unit, a peculiar smell removing unit, a sterilizing unit, a gas filtering unit, a gas exchanging unit, a stifling unit, space pressure increasing and releasing units and a processing expanding unit. With adoption of the device provided by the invention, climates and weathers in seasons can be simulated, thus, the environmental gas of the communal facility can be effectively controlled.

The invention belongs to the field of photovoltaic packaging, and particularly relates to a bending-resistant and high-bonding-strength flexible LED packaging adhesive and a preparation method thereof. The flexible LED packaging adhesive is prepared from the following raw materials: acrylate containing a phosphoric acid group, ethoxy polyformamide, an organic solvent and an auxiliary agent, the bending-resistant high-bonding-strength flexible LED packaging adhesive prepared by the invention not only has excellent bonding strength, but also has excellent high peel strength, bending resistance,tear resistance, impact resistance, good cold and hot impact resistance, thermal stability and yellowing resistance, greatly improves the outdoor strong dynamic and static load of a flexible LED lamp,and improves the service life and the use stability of a flexible LED lamp under outdoor strong dynamic and static load.

The invention discloses hot-melt heat-conducting glue for a refrigerator or freezer evaporator and the preparation and application thereof.The hot-melt heat-conducting glue contains, by mass, 10-25 parts of halogenated butyl rubber, 5-10 parts of liquid butyl rubber, 20-30 parts of polyisobutene, 10-20 parts of tackifier, 2-5 parts of paraffin, 5-10 parts of white oil, 1-2 parts of coupling agent, 60-100 parts of heat conduction filler, 1-4 parts of antioxidant and 1-4 parts of antiager.The hot-melt heat-conducting glue has excellent heat conduction property, adhesive property, anti-aging property and anti-corrosion property, reliability is high enough to meet the requirement for long-term use of a refrigerator, and corrosion to metal including copper and aluminum is avoided.Operation can be conducted with automatic equipment, glue application and liner wrapping can be conducted synchronously, and production efficiency is improved greatly; complete bubble-free attaching of an evaporator pipeline and a refrigerator or freezer liner shell can be achieved, heat transfer is quick, heat loss is low, and uniform coldness and clear frost of freezing and cold storage cavities are realized.

The invention discloses a nanofiltration membrane used for water purification, a preparation method and application thereof. The nanofiltration membrane comprises a modified PVB porous base membrane and a polyamide ultra-thin desalination layer formed by reaction on one side surface of the modified PVB porous base membrane. The polyamide ultra-thin desalination layer and the PVB porous base membrane are combined by chemical bonds, so that the base membrane and the polyamide separation layer are firmly bonded and the separation layer is complete and free of defects, which solves the problem of the current nanofiltration membrane. The problem of weak binding force caused by simple adhesion combination avoids the degradation of membrane performance such as separation layer defects, shedding, and delamination of the nanofiltration membrane due to operating pressure fluctuations, flow rate changes, and cleaning during long-term operation. or failure issues. The nanofiltration membrane of the present invention has good hydrophilicity, high water flux, double-effect heavy metal removal ability and antibacterial property, excellent swelling resistance and pollution resistance, stable long-term use performance, and is suitable for water purification equipment requiring high filtration accuracy. Especially household water purification equipment.

The invention discloses a double-component organic silicon polyurethane elastomer. The double-component organic silicon polyurethane elastomer consists of a component A and a component B, wherein the mass ratio of isothiocyano in the component A to hydroxyl in the component B is 1:(1.05-1.2); the component A is prepared by reacting the following raw materials in part by mass: 10 to 30 parts of polyisocyanate, 30 to 80 parts of polyalcohol, 0.1 to 10 parts of active hydrogen-containing siloxane and 0 to 10 parts of plasticizing agent; and the component B consists of the following raw materialsin part by mass: 10 to 50 parts of polyalcohol, 1 to 10 parts of reinforcing agent, 20 to 60 parts of inorganic filler, 3 to 10 parts of pigment, 0.1 to 10 parts of aid and 5 to 20 parts of plasticizing agent. The double-component organic silicon polyurethane elastomer has high elasticity, hardness, solvent resistance, wear resistance, flexure resistance, high and low temperature resistance, ultraviolet resistance and oxidative degradation resistance, low surface energy and high hydrophobicity, and can meet the long-term using requirement of the sport field.