33results about How to "Reliable exhaust" patented technology

The present invention relates to an explosion-proof seal plate for a sealed cell and a production method thereof and aims at providing an explosion-proof seal plate and production method thereof, wherein problems of a risk of explosion of a cell due to an excessive pressure inside the cell caused by abnormal generation of a gas through a chemical reaction accompanying over charge or erroneous use of the cell or damaging of electronic equipment using the cell as the power source are solved, ignition and other accidents can be prevented with a high accuracy by reliably cutting off an electric current when the cell internal pressure increases, and the increase in the resistance due to permeation of an electrolyte can be limited. In order to accomplish this aim, the present invention provides a thin portion 7a having a breaking strength of 18-24 kg/cm2 in the central portion of an upper metallic foil 7 made of aluminum and a thin portion 8a having a breaking strength of 10-13 kg/cm2 in the central portion of a lower metallic foil 8 made of aluminum, wherein the diameter A of the thin portion 7a of the upper metallic foil and the diameter B of the thin portion 8a of the lower metallic foil 8 satisfy the relation AB. The two metallic foils are welded at the central portions with an insulating gasket interposed, and encased in a metallic case 4 made of aluminum having 4 vent holes, on top of which a temperature dependent resistor 5 and a metallic cap 6 having 4 vent holes are then placed. A seal plate is obtained by sealing the periphery of the metallic case 4, with which it is possible to prevent accidents such as ignition and explosion of a cell by reliably allowing internal gas to exhaust in the event of generation of a large volume of gas under an abnormal condition of a sealed cell.

The invention relates to a fiber impregnation system. The fiber impregnation system comprises a fiber impregnation box (110) and a driving pump (120) connected with the fiber impregnation box (110) by one or more refluxing hoses (122), wherein the refluxing hoses (122-1, 122-2 and 122-3) are used for recycling resin from the fiber impregnation box and refilling the fiber impregnation box with the resin under the driving action of the driving pump; and preferentially, the driving pump (120) is a peristaltic pump or a diaphragm pump. Besides, the invention also relates to equipment for performing pultrusion on fibers (100) to obtain a section material (200) by use of the fiber impregnation box. According to the fiber impregnation system, the fiber impregnation box and the peristaltic pump provided with at least one pump head are combined, and the quantity of pumps, pump heads and pipelines is increased as required by production and processing, thus, the fiber impregnation box is not required to be closely connected with a corresponding molding and solidifying device, and a yarn guiding plate can be arranged in the fiber impregnation box; and the fiber impregnation box and the corresponding molding and solidifying device can be separable and vacuumizing operation is carried out, and thus, the fiber exhaust efficiency is improved.

The invention discloses a solar thermal collecting pipe. A left end cap is formed by sequentially connecting an inner hole flange, a straight section, a circular-arc section, an outer circle and an outer circle flange from inside to outside. A connecting sleeve penetrates through a corrugated pipe and the right end of the connecting sleeve is welded to the right end of the corrugated pipe. The left end of the connecting sleeve is in seal connection with the inner circumferential face of the left end of the corrugated pipe. The outer circumferential face of the left end of the corrugated pipe is in seal connection with the inner hole flange of the left end cap. Transition glass is arranged on the circumference of the outer circle of the left end cap. The outer edge of the transition glass of the left end cap is connected with a cover glass pipe through fusion sealing. A right end cap and the left end cap are of the same structure. The right end cap is formed by sequentially connecting a right inner hole flange, a right straight section, a right circular-arc section, a right outer circle and a right outer circle flange from inside to outside. A right end diameter-changing section is in welded connection with the right inner hole flange. Right transition glass is arranged on the circumference of the right end cap. The outer edge of the right transition glass is connected with the cover glass pipe through fusion sealing. The invention further discloses a processing method of the solar thermal collecting pipe. The solar thermal collecting pipe is simple, reliable, convenient to produce and high in cost performance.

The invention discloses a building roof construction process. A construction roof comprises a roof structure plate, a parapet wall and a roof surface layer, wherein the parapet wall is arranged above the roof structure plate, the roof surface layer is paved on the roof structure plate, a roof exhaust system is arranged on the construction roof and comprises a plurality of first horizontal exhaust pipes, the first horizontal exhaust pipes are respectively laid in a slope finding layer or a heat insulation layer in the roof surface layer, two ends of each first horizontal exhaust pipe are respectively connected with a vertical exhaust pipe, and the vertical exhaust pipes are embedded in the side walls of the parapet wall and a discharge flue or the side wall of an exhaust passage. The construction process of a construction roof comprises the steps of 1, surveying and setting out; 2, parapet wall, discharge flue and exhaust passage construction; 3, horizontal exhaust pipe positioning installation; 4, exhaust pipe connection; 5, roof surface layer construction; and 6, rigid protecting layer mesh division and caulking construction. The construction process has the advantages that the steps are simple, the operability is high, the realization is convenient, in addition, the work efficiency is high, the construction effect is good, and the construction quality of the construction forming building roof can be effectively ensured.

The invention relates to a radial axis sealing device which has two identical sealing rings (1) which can be mutually connected and are characterized in that the surfaces (8) attached to each other are provided with two rows of curved projections (9 and 10) which are joined by force or locked under the equipment of the sealing rings (1).

The invention relates to a special water clarifier of a turn back flow water fountain, which comprises an upper cover, an upper barrel and a lower barrel. The bottom of the lower barrel is provided with a float valve or a ball cock which can control the water level in a water hopper of the water fountain, the bottom of the upper barrel is provided with an upper filter element which is provided with an exhaust pipe, a lower filter element is arranged under the bottom of the upper barrel, the bottom of the lower filter element is connected with a turn back flow filter element which includes a shell body with a closed bottom, a lower screen is arranged at the lower part in the shell body, an upper screen is arranged at the upper part in the shell body, and granular filter material is filled between the lower screen and the upper screen. The special water clarifier has the beneficial effects that: firstly, the exhaust of the filter element is reliable, gas in the turn back flow filter element needs to be exhausted when the turn back flow is started for the first time only, so the yielding water of the water clarifier is reliable; secondly, the water filtering power of the water clarifier is enough, the lower filter element adopts micropore ceramics with higher filtering precision, so the filtering effect is increased; thirdly, because water flows through the upper filter element, the lower filter element, and the turn back flow filter element for being purified and treated repeatedly, the water quality of the yielding water is ensured more easily.

Embodiments of the invention provide battery cells having a double acting venting mechanism that provides reliable venting even in response to various undesirable events. Embodiments of the invention ensure that safe venting can take place, as necessary, even if the battery cell encounters internal and/or external pressure and/or deformation.

The invention provides a laminated-type external body for electrochemical devices, and a porous metal sheet as a safety valve can be installed in sufficient strength. The laminated-type external body for electrochemical devices is taken as an object, two external films (11) composed of high-molecular compounds are stacked to make two single-face-side sealant layers be oppositely arranged, and the periphery parts of the stacked external films (11) are sealed. On end of a safety valve (2) which is formed by a porous metal sheet (21) and can prevent the rise of internal pressure is arranged in the interior of the external body, and the other end is arranged outside the external body. The safety valve (2) is clamped between the periphery parts corresponding to the stacked external films (11), and the safety valve (2) is fixed on the sealant layers of the external films (11) through a bonding layer containing high-molecular compounds.

The present invention provides a grinding treatment method and device for improving production ratio by removing dust in grinding treatment, making orientation of fluff of the grinding cloth accordant in link and realizing long service time. The grinding treatment is characterized by comprising: an orientation film forming process of moving strip flexible film with orientation film forming material layer in length direction, simultaneously contacting the grinding cloth bonded on the grinding roller with surface of the orientation film forming material layer to form the orientation film; a grinding cloth dust removing process of contacting the a dust removing member with surface of the cloth to remove dust on the cloth after the contact of the cloth and the strip flexible film; and a dust air-discharging process of removing the dust removed in the grinding cloth dust removing process with air.

A lid, for attachment to a container holding a liquid for use with a liquid spraying device, a vent duct defining a vent conduit extending through a lid body from a duct inlet end to a duct outlet end. A valve is disposed in the vent duct and is configured to permit air flow in a first direction, from the duct inlet end to the duct outlet end, while preventing liquid flow in a second direction opposite the first direction. A cap extends over the duct inlet end, the cap including a cap interior surface defining an interior air chamber, communicating with the vent conduit, and at least a first passage, communicating between the interior air chamber and a first cap inlet. A tube is coupled to the duct outlet end and has a tube outlet end fluidly communicating with an interior of the container.

A compressed-air system having a safety function and a method for operating such a compressed-air system. The compressed-air system contains two working valves, which each can selectively assume an aerating position that aerates a load and a venting position that vents the load. Both working valves are redundantly connected on the output side to the load by means of a separating device. The separating device allows one or the other of the working valves to be separated, while the aeration of the load is maintained, in order to subject the one or the other working valve to an examination of the switching function of the one or the other working valve.

The invention relates to a carburetor arrangement of a portable handheld work apparatus and includes a carburetor (1), an accelerator pump (2) and a venting pump (3). The venting pump (3) acts on the accelerator pump (2) via a venting line (4). A check valve (5) is mounted in the venting line (4) in such a manner that its outlet end (6) is directed in the direction of the venting pump (3). A pretensioning device (7) is provided which holds a valve body (8) of the check valve (5) closed below a selected difference pressure between the outflow end (6) and an opposite-lying inflow end (9). A support device (10) which acts on the valve body (8) and is actuable, at one end, by pressure at the outflow end (6) without considering pressure at the other end (9) or by pressure on the inflow end (9) without considering the pressure on the other end (6).

A venting device for a hydraulic control unit, designed as a diaphragm in a bore in the control unit, so that collected air can escape, via the diaphragm, to outside the housing. A membrane, which is permeable to air and oil when under pressure, closes the diaphragm bore with respect to the outside. The housing bore and the diaphragm form an inside space that can be vented, via the membrane. The inside space being delimited, during operation, by the diaphragm and an oil column which passes from the control unit into the housing bore and is continually maintained at a defined pressure at which oil, in the housing bore, either does not pass through the membrane or only a minute amount passes therethrough. The oil column remains in the housing bore so that only air, contained in the oil, is vented to the outside without any air being drawn into the control unit from outside.