33results about How to "Guaranteed to be stable and safe" patented technology

A basic unit of lithium-ion battery, including: at least two series-connected lithium-ion cells; at least one lithium-ion cell for balance; controllable switches with the same number as the lithium-ion cells; a drive module for the controllable switches; a voltage detection module for detecting a voltage at two ends of the lithium-ion cells; and a controller. The lithium-ion cell for balance is connected in parallel to the lithium-ion cells. The controllable switches control the turn on / off of the connection in parallel between the lithium-ion cell for balance and each of the lithium-ion cells independently. The drive module for the controllable switches and the voltage detection module are connected to the controller. A battery pack including the basic unit of lithium-ion battery and a method for real-time charge / discharge equalizing of the basic unit of lithium-ion battery are also provided.

In an accumulator having multiple accumulator cells situated in an accumulator housing, the end faces of the accumulator cells which face a specified housing section forming an end face plane, and at least one electrical line being fastened to at least one end face of at least one accumulator cell, the at least one accumulator cell being connected via the electrical line to an electronic component associated with the accumulator, at least one line routing element is situated, at least in sections, in the area of the end face plane between the end faces facing the specified housing section and the housing section, the line routing element having at least one guide element for guiding the at least one electrical line.

The invention relates to the removal of arsenic in drinking water, in particular to a drinking-water arsenic-removing device which comprises a closed hollow cylinder; the upper part of the cylinder is provided with a water outlet, and the lower part of the cylinder is provided with a water inlet; two cylindrical filter elements are vertically arranged inside the cylinder in parallel; the bottom of the filter element on the right is communicated with the water inlet of the cylinder, and the top thereof is provided with a water outlet; the middle and upper part, the middle part and the middle and lower part of the filter element on the right are respectively provided with a detachable hole-born supporting board along radial direction; the three supporting boards divide the cavity in the filter element on the right into four parts which are a filter bed A, a filter bed B, a filter C and a filter D from top to bottom; the bottom of the filter element on the left is provided with a water inlet, and the top of the filter element on the left is communicated with the water outlet of the cylinder; and loaded drinking-water arsenic-removing nano-adsorbing agent is filled in the filter element on the left. The arsenic-removing device has wide application range and can reduce arsenic content in the drinking water to safe standard, thus being suitable for the drinking requirement of scattered towns and citizens.

The invention provides a steel row type wind measurement tower base and a wind measurement tower structure. The steel row type wind measurement tower base comprises a steel row structure formed by intersecting a plurality of hollow steel pipes in a horizontal direction and a vertical direction, the periphery of the steel row structure is encircled by four hollow edge steel pipes, each edge steel pipe is provided with a steel row water inlet and a corresponding water inlet valve, and water can flow through the steel row water inlet through the outside of the water inlet valve and then flows into the hollow steel pipes of a steel row structure. The steel row type wind measurement tower base has the advantages of simple and convenient construction, low cost, favorable carrying effect, high safety and the like.

The invention discloses a cofferdam construction method which comprises the following steps: pre-construction preparation, site clearing, cofferdam setting-out, timber pile driving, jettey building, cofferdam body filling, cofferdam protective treatment, cofferdam post-completion clearing, post-construction detection and earthwork backfilling control. The cofferdam construction method has the benefits as follows: the compacting effect is good, the waterproof effect of the cofferdam is improved, emergency measures are conveniently and timely taken once problems are found, and the construction quality and safety of the cofferdam are improved.

The invention discloses an anti-collision steel plate column wrapping system, which comprises a concrete column, a first U-shaped steel plate and a second U-shaped steel plate, wherein the first U-shaped steel plate and the second U-shaped steel plate are in butt joint and wrapped outside the concrete column; a gap is formed in the butt joint position of the two U-shaped steel plates; a seam is formed between the inner wall of each U-shaped steel plate and the concrete column; the inner walls of the two U-shaped steel plates are connected through lining batten plate assemblies; the number of the lining batten plate assemblies arranged at intervals is at least two groups; and each seam is filled with a cement slurry layer. The anti-collision steel plate column wrapping system has the advantages that customized steel plates and lining batten plates can be effectively connected; the column wrapping compactness is improved through grouting; the manufacturing quality is ensured; the field construction operation is simple and convenient; the problem of condition that columns are frequently damaged in the production process is solved; and the anti-collision steel plate column wrapping system belongs to a steel plate column wrapping system with the advantages of fireproof performance, safety, stability, attractive appearance and applicability.

The invention relates to a cross-rock-section pipeline structure and an installation method for the same. The installation method is characterized in that a cross-rock-section pipeline aerial structure is used during pipeline erection at a cross-huge-rock section; anchor blocks are laid along a rock body at a certain interval; a pipeline transport track is used during installation of a cross-rock-section pipeline; transportation is conducted with a winch and an angle block; the pipeline is pieced on the rock body by a pipeline installation supporting frame; and at pipe-laying narrow sections during installation of the pipeline, a trapezoid groove steel frame, a bogie frame transport structure and a door-shaped lifting frame are used to ensure construction quality. The cross-rock-section pipeline and the installation method provided by the invention have the advantages that construction is convenient; use of large lifting equipment is omitted; obstacles brought by topographic conditionsare overcome; construction efficiency is increased; sliding and overturning of a fixed-shape angle iron support on the rock body can be prevented effectively; transport construction of the pipeline is safer; and technical problems in transport and piecing of the pipe-laying narrow sections can be solved effectively.

The invention relates to the technical field of pancake removal, in particular to a practical pancake sequentially unloading device, comprising a feeding device, one end of the feeding device is provided with an automatic feeding device, and one end of the automatic feeding device is provided with a transmission device , the blanking device includes a second blanking slide, a first blanking slide, a blanking slider, a branch guide rod, a movable slide plate, a leading rod, a threaded hole, a first motor fixing table, a turntable, a connecting shaft, The first motor is a practical device for taking out big cakes sequentially in the present invention to realize more production of products. While improving production efficiency, it can also reduce manpower and material resources, greatly reduce production costs, reduce manual monitoring, and make production more automated. , it can realize that the pancake is safer when it is taken out, and at the same time, there is no external force intervention during the transportation of the product, which reduces the collision of the product and greatly improves the appearance quality of the product.

The invention discloses a campus security monitoring system which is characterized by comprising fingerprint identification equipment, an RFID inductive card reader, an entrance guard controller, a GPRS communication module, an embedded host, a display system and an RF card for storing related information of students, wherein the fingerprint identification equipment is connected with the embedded host, and fingerprint information of the students is acquired through the fingerprint identification equipment and is transmitted to the embedded host; the embedded host compares the acquired fingerprint with the fingerprint in a system database and determines whether the fingerprint exists in the system; the RFID inductive card reader is connected with the embedded host and is used for acquiring the information of the RF card and transmitting the information of the RF card to the embedded host; and the information acquired by the RFID inductive card reader and the fingerprint information of the students acquired by the fingerprint identification equipment are subjected to consistency confirmation by the embedded host.

The invention relates to a high-precision heating furnace steel drawing positioning control method. The control method is a method for controlling the positioning accuracy during steel drawing of a slab of a heating furnace, the heat-state width of the slab is utilized, according to the half heat-state width of the slab, the center line of a discharging roller way serves as an original point, and the motion stroke of a steel drawing machine is calculated; according to the control method, it is ensured that the slab can be simply and effectively drawn to the position of the centre line of a furnace drawing roller way, the positioning precision of the slab on the roller way after steel drawing is improved, and the frequency of steel clamping caused by inaccurate positioning when the slab enters a mill is reduced.

The invention discloses a closed type cantilever scaffold system and a construction method thereof. The closed type cantilever scaffold system comprises a cantilever steel beam through-wall structure,a cantilever steel beam balcony slab placement structure for containing a balcony slab and manufacturing a cantilever balcony, a closed type cantilever scaffold system for building a scaffold, and anoverhead cantilever formwork protective shed for erecting a protective shed, wherein the cantilever steel beam through-wall structure is used for through-wall fixing construction of a structural steel girder; an anchoring device adopting the cantilever steel beam through-wall structure is convenient to install and flexible to disassemble, the turnover utilization rate can be effectively increased, and an integrated high-intensity embedded U-shaped pull ring and an inclined strut steel tube shaping connecting beam piece are adopted, so that the balcony slab is effectively prevented from beingdamage by crushing, an adjustable vertical rod is adopted for compression joint of a fixing rod and a wall column reinforcing type connecting wall rod, the application range of the scaffold is enlarged, the overhead cantilever formwork dual-layer protective shed is adopted, safety risk in external frame erection is reduced, and safety construction is facilitated.