32results about How to "Lower installation fees" patented technology

The invention relates to a combination method installation technology for an ultra large steel-smelting converter, belonging to the installation of steel-smelting devices, which is characterized in that respectively installing hydraulic presses and cylindrical safety cushion blocks on the upper portions of four vertical props of a supporting platform relatively to the chassis portions of bearing bases on the driving side and non driving side of the converter, installing pad beams which are respectively indentified with height marks of the chassis of the bearing bases and are integrated together on steel pillars or steel beams of the operational platform on the front of the converter, assembling three components of the converter on charging bays, suspending the three components on the hydraulic presses on the supporting platform and the pad beams which are provided with rolling rods and assembling integrally, regulating the hydraulic presses to make each supporting point with balance force, installing a winding engine and a main pulley block on the advancing end of a ladle car to drag the ladle car and the supporting platform, arranging a single-sheaved block on the driving lateral bearing base which is dragged by a line hook of a steel-melting bay, correcting directions by regulating the rolling rods, and slowly dragging the whole converter to the installation position of the steel-melting bay, which is safe and reliable, and has high effect and strong operability.

The invention relates to a heat pump water heater which comprises a heat preservation water tank, a heat pump water heater mainframe, a condenser and a control circuit for coordinating normal operation of each part. A cold water intake and a hot water outlet are arranged on the heat preservation water tank, the condenser is positioned in the heat preservation water tank, the heat pump water heater mainframe is positioned in the exterior of the heat preservation water tank, and a refrigerant circulating tube is arranged between the condenser and the heat pump water heater mainframe. The heat pump water heater disuses a water system engineering material arranged in the heat pump water heater, such as a water pump, a water pipe, a penstock and the like, therefore installation fees of the heat pump water heater is cut down to a large degree and even canceled; material consumption quantity of the condenser required by the heat pump water heater is reduced significantly, and the manufacturing cost of the condenser and the whole equipment is decreased; via reasonable design and control, problems like hot water supply, hot water circulation return, and water reheating of the heat preservation water tank are completely solved, which ensures simple hot water engineering and low manufacturing cost of the system; meanwhile, due to simple engineering and less motional parts, equipment failure rate is decreased to a large degree.

The invention provides a method for rapidly preparing a high-water reduction polycarboxylate water reducing agent at a low temperature. The method is characterized in that a Fenton reagent is used as an initiator, a reaction system is controlled under a weakly acidic condition, and an initiation accelerator is added to initiate polymerization reaction of reactive monomers in the reaction system so as to quickly prepare the high-water reduction polycarboxylate water reducing agent. By the method, additional heating is not required, production of the polycarboxylate water reducing agent can be implemented under a low-temperature environment condition, the production cycle is shorter than that adopting the conventional thermal polymerization method, and the method provided by the invention is an environment-friendly and energy-saving new method.

The invention discloses an integrated glass window with a built-in metal roller blind. The integrated glass window comprises a metal roller blind window, wherein the metal roller blind window comprises a motor, a rotating shaft (4) and a metal sunshade curtain sheet (5); the motor and the rotating shaft (4) are positioned in a roller blind box (6) arranged on the top of a window frame (1) and are in transmission connection; the metal sunshade curtain sheet (5) is wound on the rotating shaft (4); a left curtain sheet guide slot (7) and a right curtain sheet guide slot (8) are respectively formed in the left side and the right side of the window frame (1) and are integrated with the window frame (1); the left side and the right side of the metal sunshade curtain sheet (5) are respectively positioned in the left curtain sheet guide slot (7) and the right curtain sheet guide slot (8); the motor drives the rotating shaft (4) to rotate; the rotating shaft (4) drives the metal sunshade curtain sheet (5) to be coiled or uncoiled; the two sides of the metal sunshade curtain sheet (5) move up and down in the left curtain sheet guide slot (7) and the right curtain sheet guide slot (8).

The present invention relates to a security camera device for monitoring the outside of an elevator with a monitor. The security camera device includes: a security camera (10) installed on a surface of a cage door (D1) of an elevator; an infrared lamp (20) installed adjacent to the security camera (10) to illuminate a building corridor at night; a sensor unit (30) which senses a time at which the cage door (D1) precisely matches with a hall door (D2) of the elevator; a window (W) formed in the hall door (D2) corresponding to a front surface of the security camera (10) and the infrared lamp (20), covered with transparent glass and having a size sufficient to cover a viewing angle (A) of the security camera (10); and a controller (40) connected to the security camera, the infrared lamp and the sensor unit to control the operation of the security camera, the infrared lamp and the sensor unit and to store data. The security camera (10) photographs a dynamic image at a normal time. When the sensor unit (30) senses that both doors (D1, D2) are accurately matched with each other, the security camera (10) photographs a still image under the control of the controller. The dynamic image and the still image photographed by the security camera are displayed on the monitor (M) by the controller.

The invention discloses an integrated fixed bed gasifier for chilling and deslagging molten slags. The integrated fixed bed gasifier is provided with a high-pressure-resistant shell with an integral structure; an inner cavity of the high-pressure-resistant shell is sequentially divided into a raw material gasifying area, a liquid-state molten slag area and a molten slag chilling area from top to bottom; the raw material gasifying area is provided with a refractory matter layer and a water-cooling jacket, so that a normal operation condition of the raw material gasifying area is maintained, andraw materials are gasified to produce a crude synthesis gas; the liquid-state molten slag area is provided with a funnel-shaped refractory water-cooling enclosure bulkhead, and is used for collectingliquid-state molten slags produced in the raw material gasifying area; a molten slag discharging ring sleeve is arranged at a bottom molten slag outlet part of the refractory water-cooling enclosurebulkhead, and a molten slag discharging control device is arranged in an inner cavity of the molten slag discharging ring sleeve, so that the molten slags are conveniently adjusted to be downwards discharged continuously or discontinuously; a furnace slag outlet used for discharging the chilled furnace slags and connected with an external slag locker in a sealing way is formed in the bottom part of the molten slag chilling area. The gasifier has the characteristics of high inner cavity volume utilization ratio, capability of avoiding high pressure gas leakage, high molten slag chilling efficiency and the like.

The invention discloses a buckle type installation method with a purifying fresh air ventilator sharing an air conditioner mounting hole for ventilation. The method comprises the following steps thatan air conditioner mounting hole residual space is formed, and an air conditioner pipe fitting set penetrates through the residual space, behind a ventilation hole, in a rotating connector base, the residual space, except for the space occupied by the air conditioner pipe fitting set, of the rotating connector three-way ventilating space, a rotating connector three-way ventilating hole and an indoor and outdoor ventilation channel of a ventilation opening of the purifying fresh air ventilator. When the fresh air ventilator works, outdoor air passes through the air conditioner mounting hole residual space and the air conditioner pipe fitting set which penetrates through the residual space, behind the ventilation hole, in the rotating connector base, the residual space, except for the spaceoccupied by the air conditioner pipe fitting set, of the rotating connector three-way ventilating space, the rotating connector three-way ventilating hole, the ventilation opening of the purifying fresh air ventilator to be conveyed to the purifying fresh air ventilator, and the outdoor air is conveyed to a room after being purified and treated. After the method is carried out, the residual spaceof the reserved air conditioner mounting hole is effectively utilized, the installation of the purifying fresh air ventilator is realized, and moreover, for each fresh air ventilator, the cost of mounting the mounting hole can be saved by 100 yuan or more.

The invention relates to a zero-phase open-circuit protection circuit breaker, and the circuit breaker comprises a zero-sequence mutual inductor, an electric leakage release and a piezoresistor; the primary side of the zero-sequence mutual inductor is encircled with a phase line main circuit and a zero line main circuit, and the secondary side of the zero-sequence mutual inductor is connected withthe signal input end of the electric leakage release; one end of the piezoresistor is connected with the zero line main circuit, and the other end of the piezoresistor is connected with the ground terminal; the operating voltage of the piezoresistor is 10-15% of the rated power supply voltage, the piezoresistor adopts a zinc oxide piezoresistor with a circular sheet-shaped sintered structure, theratio of the thickness to the diameter of the piezoresistor is not more than 1: 10, and the sintering raw materials of the piezoresistor comprise zinc oxide powder and alumina heat-conducting fibers.Compared with the prior art, the zero-phase open-circuit protection circuit has the advantages of being capable of achieving effective seamless overvoltage protection on all zero-phase open circuits,low in cost, reliable in performance, wide in application range and the like.

The invention discloses an air refresher mounting method for sharing ventilation of remained space of air conditioner mounting holes. The remained space of the air conditioner mounting holes communicates with an air refresher, a negative-pressure air refresher and a negative-pressure purification air refresher, that is, the remained space of the air conditioner mounting holes communicates with intake space of the air refresher, the negative-pressure air refresher and the negative-pressure purification air refresher to realize sharing of the ventilation of the air conditioner mounting holes bythe air refresher, the negative-pressure air refresher and the negative-pressure purification air refresher, so that the installation of the air refresher, the negative-pressure air refresher and thenegative-pressure purification air refresher is finished without drilling mounting holes, the air refresher, the negative-pressure air refresher and the negative-pressure purification air refresher are promoted to be widely applied to bedrooms and study rooms of houses and office environments with areas of 20 mm2 and below, the influence from outdoor haze and pollen is effectively prevented, and the mounting cost can be reduced by more than 100 Yuan.

The main engine shoring device with the active vibration control system comprises an air tank installed on one side of a ship body and used for storing air supplied to a shoring, an active vibration controller used for automatically controlling the air supplied to the shoring, a connecting channel, a manifold baffle block communicated with one side of the active vibration controller, and a main engine connected with the manifold baffle block, the active vibration controller includes an active vibration controller, a manifold stopper that diverges the air flowing in through a connection channel into a plurality of branches, a diverging channel that communicates with the manifold stopper on one side and communicates with a back shore on the other side so that the air flowing in from the manifold stopper flows, and the back shore that is fixedly mounted on one side to a hull and fixedly mounted on the other side to an engine on the other side. The vibration of the engine is attenuated by the air supplied by the branch channel, and the vibration state of the engine and the structure of the crew residential area is measured in real time by the vibration sensor.

The invention provides a medium-frequency power supply synchronizing device for a gas centrifuge and is applied to technology of large power IGBT-PWM rectification inversion type medium-frequency power supplies of centrifuges. The device provided by the invention includes a single synchronization signal generating device and a synchronization redundancy control device. On one hand, the invention discloses a large power medium-frequency power supply synchronizing operation mode of the centrifuge. On the other hand, a technical problem of large load switch disturbance and consequently caused lowfrequency oscillation when single medium-frequency power supplies are in mutual standby application. Therefore, medium-frequency power supply possibility of the centrifuge is improved and technical conditions are provided for further design of larger scale centrifugation projects.