32results about How to "Free expansion" patented technology

The invention discloses a single anchor supporting-type double axis silicon micro resonant accelerometer, which comprises a lower-layer glass substrate, a lead layer, a bonding layer and an upper-layer silicon structure layer, wherein the bottom layer is the glass substrate; metal is sputtered on the upper surface of the glass substrate as the lead layer; the bonding layer is arranged on the glass substrate and the lead layer, and through the bonding layer, the silicon structure layer is suspended above the glass substrate; the movable structure of the entire upper-layer silicon structure layer is supported by the only anchor; the upper-layer silicon structure layer comprises a fixed supporting frame and four upper-layer silicon micromechanical substructures, and the upper-layer silicon micromechanical substructures are arranged sequentially in a counter-clockwise direction; and the first upper-layer silicon micromechanical substructure and the third upper-layer silicon micromechanical substructure, and the second upper-layer silicon micromechanical substructure and the fourth upper-layer silicon micromechanical substructure form groups of accelerometer measurement modules respectively. Influences brought by mismatch between material properties of the substrate material and the silicon material can be effectively restrained, residual stress generated in the case of bonding and thermal stress in the case of environmental changes can be eliminated, and decoupling between two orthogonal directions is realized.

The invention relates to a device for fixing heating surfaces in a supercritical tower type boiler. In the conventional CE technology, horizontal heating surfaces are hung by pipe clamps, angle plates and round steel hanging devices, and the expansion problem cannot be solved. The device for fixing the heating surfaces in the supercritical tower type boiler comprises that: the heating surfaces adopt tower type arrangement and are fixed above a hearth; each level of the heating surfaces in a low-temperature smoke region and a high-temperature smoke region is arranged horizontally; the heating surfaces are hung and fixed sequentially from top to bottom through hanging pipes (3); all the heating surfaces pass through a front water cooled wall or a rear water cooled wall; a heating surface pipe at the position of the water cooled wall is welded with fins of the water cooled wall; the other end expands freely; a hanging device (1) of the heating surface positioned in the low-temperature smoke region is provided with a group of upper coil pipes (4) arranged sequentially; and a hanging device (2) of the heating surface positioned in the high-temperature smoke region is provided with a group of lower coil pipes (5) arranged sequentially. The device is used for fixing the heating surfaces in the supercritical tower type boiler.

The invention discloses a temperature-controllable fuel boiler. The temperature-controllable fuel boiler comprises a boiler body and a PLC controller controlling a working state of the boiler body, wherein a hearth for storing a burner and a water storage box for storing water are arranged in the boiler body, and the top of the boiler body is provided with a smoke tube communicated with the hearth; the bottom side wall of the boiler body is provided with a hot water faucet communicated with a hot water outlet of the water storage box by virtue of a hot water outlet pipe; and a water supplementing box is also arranged by the side of the boiler body, a coil pipe for cooling the boiled water delivered by the boiler body is arranged in the water supplementing box, a water inlet of the coil pipe is communicated with a hot water outlet of the water storage box by virtue of a hot water pipeline, the water outlet of the coil pipe is communicated to a warm water faucet on the bottom side wall of the boiler body by virtue of a warm water pipe, and the warm water pipe is provided with a water pump and an electromagnetic valve connected with the output end of the PLC controller. The controllable temperature fuel boiler integrally controls the ignition, burning and monitoring, realizes the accurate temperature control, can improve the heating efficiency and self-sustaining capability, and can reduce the energy consumption.

The invention provides a novel cat claw structure used for a small steam turbine. Connection of a steam cylinder and a bearing seat is achieved, the structure is novel, it can be effectively guaranteed that the relative positions of the steam cylinder and the bearing seat are not changed, and meanwhile the smooth free expansion of the steam cylinder is guaranteed. According to the technical scheme, the novel cat claw structure comprises a bearing seat supporting plate, a fixed block, a steam cylinder connecting piece and a transverse pin; and the fixed block is fixed to the bearing seat supporting plate, one end of the steam cylinder connecting piece is fixedly connected with the steam cylinder, the other end of the steam cylinder connecting piece is of a U-shaped fork structure, the fixedblock is arranged in the U-shaped fork, the two sides of the U-shaped fork are each provided with a through hole, the two through holes are coaxial, coaxial through holes are also formed in the positions, corresponding to the two through holes, of the fixed block, the transverse pin is arranged in the through holes in a penetrating manner, and therefore the U-shaped fork is connected with the fixed block.

The invention provides a communication device. The communication device is contained in a communication system for performing information exchange between communication devices in a multi-carrier transmission mode in which a plurality of sub carriers are used. The communication device comprises a receiver; the receiver is configured to receive frequency band information by using a special frequency band selected from a plurality of frequency bands distributed to the communication system; the frequency band information comprises the using frequency band of at least one frequency band excepting the special frequency band; the using frequency band is used for transmitting data information between the communication devices, wherein after the frequency band information is received by the receiver, the receiver receives the data information by using the using frequency band indicated by the frequency band information, after the special frequency band is converted into another frequency band in frequency bands, the converted special frequency band is configured into a principal frequency band in the distributed frequency bands, and the receiver receives the frequency band information and also receives the data information by using the principal frequency band.

The invention relates to a rehabilitation device after thoracotomy. The device is formed by connecting a rigid protective strip and a connecting unit which can be extended greatly but can be shortened slightly or cannot be shortened, and is provided with a respiratory training device, and under intelligent control of a processor, according to a respiratory signal and a thoracic signal, the wearing adaptability of the rehabilitation device, the respiratory function completeness of the patient and the respiratory training effect are prompted.

The provided extended box-type transformer module comprises at least a circuit board, multiple box-type transformers, multiple terminals extended out of the shell to form interface feet and coupled with the board, and the shell. Wherein, arranging multiple joints on bottom of box body to couple with the board and form at least one layer stack structure. This invention can not only improves process speed and up-to-standard rate, and decreases current product size, but also can extend freely the transform efficiency for automatic production.