37results about How to "Simple design and installation" patented technology

Air conditioning units, systems, and methods that control temperature and humidity within a space in a building, for example, using a recovery wheel, a desiccant-based or passive dehumidification wheel, a primary cooling coil; and a secondary direct-expansion refrigeration circuit that includes a secondary circuit compressor, a secondary circuit evaporator coil, and a secondary circuit condenser coil. In various embodiments, the system forms a supply airstream that passes outdoor air first through the recovery wheel, then through the primary cooling coil, then through the secondary circuit evaporator coil, then through the dehumidification wheel, and then to the space. Further, in many embodiments, the system forms an exhaust airstream that passes return air from the space first through the secondary circuit condenser coil, then through the dehumidification wheel, and then through the recovery wheel. In some embodiments, various quantities of heat and moisture are transferred between the two airstreams.

Computer-implemented methods, systems, and software of detecting leaks, for example, in a pipeline that conveys a liquid or gas. Embodiments include inputting into a computer system a first set of data acquired (e.g., from the pipeline) during (e.g., normal) operation (e.g., of the pipeline), acquiring a second set of data (e.g., from the pipeline) while simulating leaks (e.g., from the pipeline) by releasing quantities of the liquid or gas (e.g., from the pipeline) from multiple locations (e.g., along the pipeline), inputting into the computer system the second set of data, and training the computer system to detect the leaks (e.g., from the pipeline) including communicating to the computer system that no leaks existed while the first set of data was acquired and communicating to the computer system that leaks existed while the second set of data was acquired.

The invention provides a spindle coupling reciprocating type wind energy and tide energy conversion device which comprises supports, blades and spindles. Each spindle is mounted on the two corresponding supports through bearings, guide rails are mounted on one opposite sides of every two supports, two ends of each blade are connected with the corresponding guide rails through bearings and sliders, a transmission mechanism is arranged between each blade and the corresponding spindle and comprises connecting rods and rocking rods, one end of each rocking rod is fixedly connected with the corresponding spindle, the other end of each rocking rod is hinged to one end of the corresponding connecting rod, the other end of each connecting rod is fixedly connected with a rotation center of the corresponding blade, and a plane of chordwise center lines of the blades is perpendicular to the connecting rods. The spindle coupling reciprocating type wind energy and tide energy conversion device is a simple and effective wind energy/tide energy power generation device, and is simple to design and install, low in maintenance cost and high in power generation efficiency. Compared with a horizontal-axis power generation device, the spindle coupling reciprocating type wind energy and tide energy conversion device is small in influence due to wind direction deviation.

Methods and systems for controlling temperature and humidity within a space in a building. Outdoor air and return air from the space are passed through particular equipment in a particular order. Equipment includes a secondary direct-expansion refrigeration circuit, a recovery wheel, a primary cooling coil or direct-expansion refrigeration circuit, secondary circuit coils, and a dehumidification wheel. Various embodiments include modulating the secondary circuit compressor to adjust reheat capacity at the secondary circuit condenser coil, a geothermal direct-expansion refrigeration circuit, a variable refrigerant flow subsystem, fan coil units, multiple zones, a dedicated outdoor air supply subsystem, an evaporative cooler, supplemental outdoor air, or a combination thereof. In some embodiments, supply air passes first through the recovery wheel, then through the primary cooling coil, then through the dehumidification wheel, and then to the space. Further, in some embodiments, exhaust air passes through the dehumidification wheel, and then through the recovery wheel.

A solar photovoltaic three-phase micro-inverter comprises: DC terminals, coupled with three DC photovoltaic assemblies adjacent to each other; three single-phase inverter circuits having input terminals coupled respectively with the three DC photovoltaic assemblies via the DC terminals, for converting the DC currents generated by the three DC photovoltaic assemblies to AC currents, respectively; AC terminals coupled with a three-phase AC power grid; wherein output terminals of each single-phase inverter circuit are coupled respectively with a neutral wire and one of the three phases of the three-phase AC power grid. A solar photovoltaic power generation system is also provided. The three single-phase inverter circuits can be integrated as above Because the three DC photovoltaic assemblies on one three-phase micro-inverter are disposed adjacently and have similar environment conditions, such as illumination, temperature, etc., the three-phase AC current can be well balanced.

Fire-retardant panels that include: a frame with multiple holes in at least two rows that reduce heat conduction through the panel; or a frame that includes two portions separated by a layer of fire-resistant material (e.g., gypsum, calcium silicate, or gypsum board). Some embodiments include layers of skin (e.g., sheet metal) or insulation (e.g., between skin and fire-resistant material). In particular embodiments, the fire-resistant material is (e.g., midway) between: two skins, two layers of insulation, two portions of the frame, or a combination thereof. The portions of the frame can be: sheet metal, attached (e.g., screwed) to the skin(s), or extend around the perimeter. The frame can include: various elongated members, one or two (e.g., parallel) bends, or holes that are: in at least three rows, staggered, elongated, or slots (e.g., parallel to each other or to the skin).

The invention discloses a novel disc-type solar-powered heat collecting device and a novel disc-type solar-powered heat collecting system. The device comprises a reflecting mirror, a heated point and a heat collecting pipe, wherein the reflecting mirror traces sunlight by rotation, so that the sunlight irradiates vertically to gather photo-thermal energy; the heated point is positioned on the focal point of the reflecting mirror; the spatial position of the heated point is stationary when the reflecting mirror traces the sun by rotation; the heat collecting pipe is connected with the heated point; and a working medium in the pipe is heated by solar energy focused at the heated point. By the device and the method, the reflecting mirror rotates or changes an inclination angle to trace the sun by rotation, so that the sunlight irradiates vertically on the reflecting mirror and an effective receiving area is maximized. After the sunlight is collected by the reflecting mirror, the heated point at the focal point is heated in a centralized way and a higher working medium temperature can be obtained in a point focusing mode. The heat collecting system collects high-temperature media output by a plurality of heat collecting pipes and uniformly supplies heat to the outside or generates power. The spatial position of the heated point is stationary when the reflecting mirror traces the sun, so that the design and installation of the heat collecting pipe are simplified greatly.

The invention provides a strengthening method for resisting progressive collapse through a steel frame structure. Through the design method for resisting progressive collapse in the standard, the position of a key pillar is determined. After the key pillar is chosen and determined, the key pillar is assumed as a destroyed steel pillar, and single oblique ribs or double oblique ribs are additionally arranged on joist steel of the two sides of the destroyed steel pillar. The pressure arching effect of the key pillar position is reinforced, and the redundancy degree and the progressive collapse resistance property of a newly-built building are improved. Or after a weak pillar or a destroyed pillar is known through exploration and observation, the weak pillar or the destroyed pillar is assumed as the destroyed steel pillar. According to the arrangement conditions of building components and site conditions of construction, the single oblique ribs or the double oblique ribs are chosen for strengthening, and strengthening for progressive collapse resistance is achieved. The strengthening method for resisting progressive collapse through the steel frame structure is simple in design and mounting and good in economic benefits. Oblique ribs and regular stress components are not superimposed, so that the strengthening method for resisting progressive collapse through the steel frame structure is applied to a newly-built structure, strengthening reconstruction of an existing structure, a full welding beam pillar joint point, and an end plate connecting beam pillar joint point.

The invention relates to a moulding basin for moulding two ladles at the same time in the technical field of casting. The moulding basin comprises a moulding basin body of which the length size is larger than the width size and the upper part is opened; inlet cavities are respectively and symmetrically formed in two sides of the moulding basin body along the length direction; an outlet cavity is formed in the middle part of the moulding basin body; a sprue connector is formed in the bottom wall of the outlet cavity; the inlet cavities in the two sides and the outlet cavity in the middle part are respectively separated through filter cavities; each inlet cavity and the adjacent filter cavity are separated through a separating wall I; the outlet cavity and the filter cavities in the two sides are respectively separated by separating walls II; a plurality of filter holes I which are communicated with the inlet cavities and the filter cavities are formed in the bottom parts of the separating walls I; a plurality of filter holes II which are communicated with the filter cavities and the outlet cavity are formed in the bottom parts of the separating walls II. According to the moulding basin for moulding the two ladles at the same time, disclosed by the invention, the two inlet cavities and the filter cavities are formed in one moulding basin, the structure is simple, the cost is low, the slag blocking effect is good, the mould filling is stable, and the moulding basin is beneficial for increasing the moulding quality of castings.

Fire-retardant panels that include: two skins (e.g., sheet metal) and a layer of gypsum or calcium silicate fire-resistant material therebetween; two layers of insulation with fire-resistant material therebetween; a skin (e.g., sheet metal), a layer of gypsum or calcium silicate fire-resistant material, and insulation therebetween; or a combination thereof. Some embodiments include: two contiguous layers of the fire-resistant material, gypsum board, tongue and groove connections; or a frame that extends around the perimeter or has two portions that are attached to the skins or are separated by the fire-resistant material. In some embodiments, the fire-retardant panel is fabricated in a factory before being installed at a jobsite.

The invention relates to a machining center power distribution cabinet permanent magnet door lock matching device which comprises a power distribution cabinet body, a power distribution cabinet door, a safety protection lock and a machining center outer protection part. The power distribution cabinet door comprises a power distribution cabinet right door edge and a power distribution cabinet left door edge, two hinges are arranged on the power distribution cabinet left door edge and are fixed on the power distribution cabinet body, the safety protection lock is arranged in the middle of the power distribution cabinet right door edge, and permanent magnet shock-resisting devices are arranged at the upper end and the lower end of the power distribution cabinet right door edge respectively. On the aspect of structure design, spring tongues are arranged for shock reduction, pressure and vibration generated immediately when permanent magnets are attracted and separated are effectively relieved, and circuits and components in the power distribution cabinet are greatly protected.

The invention discloses a building and equipment vibration control method based on layered energy consumption, and the method comprises the steps: 1), determining a vibration speed V of a vibration control object; 2), dividing the vibration speeds of the vibration control object into five levels which represents the vibration energy distribution of five regions according to the determined vibration speed V: 50microns/s<V<5m/s, 12microns/s<V<=50microns/s, 3microns/s<V<=12microns/s, 1.5microns/s<V<=3microns/s, and 0<V<=1.5microns/s; 3), respectively taking vibration control measures for the above five vibration energy sections, enabling the vibration control efficiencies delta D1 - delta 5, wherein the vibration control frequencies meet a formula (shown in the description). The method employs vibration isolation, reduction and control device with different performances for horizontal vibration objects with different levels based on the proposed five vibration levels from the rough to the fine through the layered energy consumption method, and finally achieves the segmentation and gradual consumption of the vibration energy of the whole building structure. Compared with a method of carrying out the vibration control through a single energy consumption target, the method reduces the consumption, and is simple in design and installation.

Systems and methods for controlling temperature and humidity within a space in a building. Outdoor air and return air from the space are passed through particular equipment in a particular order. Equipment includes a secondary direct-expansion refrigeration circuit, a recovery wheel, a primary cooling coil, secondary circuit evaporator and condenser coils, and a dehumidification wheel. Various embodiments include multiple zones, chilled beams, and a dedicated outdoor air supply (DOAS) subsystem delivering dehumidified air to active chilled beams. In various embodiments, supply air passes first through the recovery wheel, then through the primary cooling coil, then through the dehumidification wheel, and then to the space. Further, in some embodiments, exhaust air passes through the dehumidification wheel and then through the recovery wheel. Pump modules may supply chilled beams and control their temperature to avoid condensation. A chiller may supply cooling water to both the primary cooling coil and the pump modules.

The invention relates to a permanent magnet door lock cooperation device for a power distribution cabinet of a machining center. The device comprises a power distribution cabinet body, a power distribution cabinet door, a safety protection lock, and a machining center outer protection. The power distribution cabinet door comprises a power distribution cabinet right door frame and a power distribution cabinet left door frame. The power distribution cabinet left door frame is provided with two hinges. The hinges are fixed with the power distribution cabinet body. The middle position of the power distribution cabinet right door frame is provided with the safety protection lock. The upper end and the lower end of the power distribution cabinet right door frame are respectively provided with permanent magnetic shockproof devices. The device is provided with a spring tongue piece, designed for damping on structure. The pressure and vibration at the moment the permanent magnets adhere and disconnect are effectively buffered, so the device greatly protects internal circuits and components of the power distribution cabinet.

The invention discloses a seven-channel rotating joint device. The seven-channel rotating joint device is installed on a main rotary table of a double-drum winding machine, the pipe wall of a rotating joint of the main rotary table is provided with an oil drain oil tube, a first winding drum lubricating oil pipe, a second winding drum lubricating oil pipe, a first winding drum expanding-collapsing oil inlet, a first winding drum expanding-collapsing oil outlet, a second winding drum expanding-collapsing oil inlet and a second winding drum expanding-collapsing oil outlet; an oil drain oil tube, a first winding drum lubricating oil pipe, a second winding drum lubricating oil pipe, a first winding drum expanding-collapsing oil inlet, a first winding drum expanding-collapsing oil outlet, a second winding drum expanding-collapsing oil inlet and a second winding drum expanding-collapsing oil outlet are correspondingly arranged in an inner cavity of a tube collecting shaft. The seven-channel rotating joint device is simple in structure, convenient to install and maintain and reliable in work.