38results about How to "Simple design and installation" patented technology

Chilled-beam zone pump modules for controlling zones of a chilled-beam heating and air conditioning system, multiple-zone chilled beam air conditioning systems for cooling multiple-zone spaces, and methods of controlling chilled beams in multi-zone air conditioning systems. Embodiments include a pump serving each zone that both recirculates water within the module and chilled beam and circulates water in and out of a chilled or warm water distribution system through valves to control the temperature of the water delivered to the chilled beams. Different embodiments provide heating as well as cooling, use check valves to reduce the number of control valves required, adjust the temperature of the beam to avoid condensation, change pump speed to save energy or increase capacity, can be used in two- or four-pipe systems, or a combination thereof.

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.

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.

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.

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.

The invention relates to the technical field of a hoisting system, and particularly relates to a keel type thread rack for a whole hot runner hoisting system. The keel type thread rack comprises a rack body, wherein a connecting piece and a thread jamming clamp are arranged on the thread rack body, and the thread rack body comprises a plurality of rod-like main beams; the connecting piece comprises a connecting plate; the thread jamming clamp comprises a thread clamp body which consists of a fixed frame, a mounting plate is arranged at the bottom of the fixed frame, a clamping slot is formed in the mounting plate, and fixed holes are formed in two sides of the clamping slot. According to the keel type thread rack, the main beam plays a certain role in supporting lines and pipelines and has certain bearing capability, and a power line, a temperature sensing line, an oil gas pipeline and a cooling pipeline provided by the whole hot runner system can be separately arranged so as to avoid mutual interference and play safety and protection roles; in addition, the thread jamming clamp is connected with the main beam by adopting a manner of butt-joining the two thread clamp bodies, the installation and regulation are convenient and fast, the rapid installation can be realized, and the design and installation and the follow-up maintenance cost can be reduced.

An ore pulverizer is composed of a frame, a hammering mechanism, feeding mechanisms, an up-lifting mechanism, and a hopper. The hammering mechanism is composed of a middle shaft, a hammer, an upper fixing plate, a lifting disc, a lifting disc fixing nut, and a lower fixing plate. Two feeding mechanisms are symmetrically arranged on the two sides of the middle shaft. Each feeding mechanism is composed of a feeding motor, a chain wheel, a feeding plate chain, a feeding plate, a cushion plate, a vertically-supporting plate, and a horizontally-supporting plate. The up-lifting mechanism is composed of a transmission device and a lifting device, the transmission device is composed of a main motor and a gearbox, and the lifting device is arranged on the middle part of the lower support of the bottom plate and is composed of a big chain wheel, a support plate chain, a support plate, a supporting plate, a support rack, a fixed chain wheel, a roller, and a roller chain. The ore pulverizer has the advantages of high efficiency, prominent electric energy saving effect, high ore pulverizing efficiency, large ore output, and convenience for installation and maintenance.