33results about How to "Meet the requirements of safe operation" patented technology

The invention provides a low-temperature storage-transport container which is provided with an inner shell and an outer shell, wherein the inner shell comprises an inner cylinder and two inner sealing heads located at two ends of the inner cylinder; the outer shell comprises an outer cylinder and two outer sealing heads located at two ends of the outer cylinder; a supporting structure is arranged between the inner shell and the outer shell; the supporting structure comprises a fixed supporting component, a sliding supporting component and an anti-rotating supporting component; the fixed supporting component is fixedly connected between one outer sealing head and one inner sealing head; the sliding supporting component comprises a first part and a second part which can slide oppositely along the axial direction; the first part is fixedly arranged on the other outer sealing head; the second part is fixedly arranged on the other inner sealing head; and the anti-rotating supporting component is used for preventing the inner shell from rotating relative to the outer shell and is arranged between the inner shell and the outer shell. The low-temperature storage-transport container provided by the utility model is excellent in heat-insulating property under the condition of meeting the strength requirement of the supporting structure.

A method for controlling the smoke dust of lime kiln features that a dust collecting hood is used to capture smoke dust, a duster is then used for separating dust from fume, and the fume is finally exhausted. The frequency-variable control is applied to said duster, so its blower can be connected to DCS system for automatic regulation.

The invention provides a low-temperature storage-transport container which is provided with an inner shell and an outer shell, wherein the inner shell comprises an inner cylinder and two inner sealing heads located at two ends of the inner cylinder; the outer shell comprises an outer cylinder and two outer sealing heads located at two ends of the outer cylinder; a supporting structure is arranged between the inner shell and the outer shell; the supporting structure comprises a fixed supporting component, a sliding supporting component and an anti-rotating supporting component; the fixed supporting component is fixedly connected between one outer sealing head and one inner sealing head; the sliding supporting component comprises a first part and a second part which can slide oppositely along the axial direction; the first part is fixedly arranged on the other outer sealing head; the second part is fixedly arranged on the other inner sealing head; and the anti-rotating supporting component is used for preventing the inner shell from rotating relative to the outer shell and is arranged between the inner shell and the outer shell. The low-temperature storage-transport container provided by the utility model is excellent in heat-insulating property under the condition of meeting the strength requirement of the supporting structure.

The invention relates to a composite silicon-free defoamer for solving the problem of a foam layer in a coke tower. The technical scheme of the composite silicon-free defoamer is that the defoamer is prepared from the following materials in parts by weight: 20-50 parts of lauryl alcohol, 10-50 parts of polyoxyethylene polyoxypropylene glycerol ether, 5-20 parts of phenol derivative ethoxy propoxylate and 10-30 parts of isooctanol. The invention is free of silicon, nontoxic and harmless, excellent in heat resistance, and is not decomposed when heated to 500 DEG C and is suitable for defoaming at high temperature. The defoaming effect of silicon-free defoamer is equivalent to that of low-silicon defoamers, and better than high-silicon defoamers; and the defoamed ratio can reach 90% or more when the added quantity exceeds 50 gamma / g. The site trial shows that the product has excellent defoaming effect, and satisfies the requirements of safe operation of devices without any undesirable effects for the product quality and catalysts of a downstream unit through inspection.

The invention discloses a three-phase split transformer insulation monitoring signal centralized sampling device. The device is composed of a centralized sleeve end screen current signal sampling unit, a centralized reference voltage signal sampling current, an intelligent sink control cabinet, three-phase split transformer sleeve current signals and three-phase split transformer sleeve voltage signals. The device has the advantages that online monitoring signals of sleeves of one transformer can be acquired in a centralized mode, the number of reference sensors is greatly reduced, and therefore measurement errors caused by the sensors are reduced; as is shown in detection, all technical indexes of the device meet the requirement for safe operation of the sleeves of the transformer; the configuration mode is simple, technicians can install, adjust, check and maintain the device conveniently, and the device is easy to apply and popularize.

The invention discloses a working vehicle for overhauling large span transmission lines, and the vehicle comprises a working cage, a main wheel frame horizontally mounted on the top of the working cage, and main pulleys movably mounted on the main wheel frame. The length of the main wheel frame is greater than that of the working cage. The main pulleys are mounted at two ends of the main wheel frame respectively. The working cage is also articulated with an auxiliary wheel frame. The two ends of the auxiliary wheel frame top are respectively provided with auxiliary pulleys, and the bottom is equipped with a handle. The handle can rotate the auxiliary wheel frame around the hinge shaft to change the cooperation between the main pulleys and the cable. The invention has the beneficial effects that the working cage is directly connected fixedly with the main wheel frame so as to reduce the shaking problem existing in the working process. And the main wheel frame has a longer size, which further enhances the stability in the direction of travel to avoid overturning. With the manually rotating auxiliary wheel frame, the contact between the main pulleys and the cable can be changed for barrier-free pass.

The invention provides an industrial-grade general-purpose superconducting magnet system, which includes various functional components required for the operation of industrial superconducting magnets such as excitation / demagnetization, operation status monitoring, power grid fault magnetic field maintenance, quench detection and protection, and system integration High degree of automation, simple operation and maintenance, providing the function of temporarily suspending power supply for superconducting magnets to maintain the magnetic field of grid faults, providing dual quench protection functions such as active quench detection and passive quench protection for superconducting magnets, ensuring the safe operation of superconducting magnets , to meet the requirements for the safe operation of industrialized superconducting magnets. The highly integrated superconducting magnet power supply provides a favorable guarantee for the wide application of industrial superconducting magnets.

The invention discloses an oil-water separating sewage drain device for a transformer oil reservoir. The device is characterized by being composed of an oil reservoir water level determination device (1), an integrated control device (2) and a sewage drain device (3); the oil reservoir water level determination device (1) comprises a supporting rod substrate (1-10), an adjustable supporting rod (1-2), a zero potential contact chip (1-1), a sewage drain pump start contact chip (1-3), and a sewage drain pump stop contact chip (1-4); the integrated control device (2) comprises a control device body (2-13), a power switch (2-6), a liquid crystal display (2-5), and an F21-E1RX remote control device (2-14); the sewage drain device (3) comprises a sewage drain pump (3-1) and a voltage-sensitive relay CJXZ-2510 (3-2). According to the oil-water separating sewage drain device for the transformer oil reservoir, water in the transformer oil reservoir is monitored in real time and drained in time, therefore, the occurrence of an accident that the surrounding environment is damaged due to occurrence of overflow of transformer oil when the oil reservoir is waterlogged is prevented, and the labor intensity of operation and maintenance staff as well as operation and maintenance cost of the device are reduced.

The invention relates to a welding-type jockey pulley base of a stainless steel escalator step, belonging to the manufacturing field of escalators. The traditional structure is formed by casting integrally and has the problems of energy consumption, low percent of pass, high manufacturing cost and poor consistency. The welding-type jockey pulley base of the stainless steel escalator step comprises a jockey pulley shaft and a base body with a mounting hole, wherein the jockey pulley shaft and the base body are detachable members which are integrally welded and fixed; the jockey pulley shaft iscylindrical and comprises a jockey pulley mounting part on the upper part, a shaft lever in the middle part and a shaft base connection end on the lower part; the base body is a board stamping part comprising a triangular bottom face and a side wall which is perpendicular to the bottom face and provided with an opening at one end; a connection chamfer is arranged at the joint of the triangular bottom face and the side wall; and the vertex angle of the triangular bottom face is provided with a jockey pulley mounting hole in which the jockey pulley mounting part is inserted. The invention has the advantages of detachable production, convenient processing, low manufacturing cost, energy saving, light self weight and good strength, and is suitable for detachable-type stainless steel steps.

The invention relates to a method for improving the flow regime of a high velocity flow of a sharp bend section in a free-flow tunnel, and belongs to engineering methods for improving the flow regime of the high velocity flow of the sharp bend section in the free-flow tunnel. The method comprises the steps of arranging a bend stilling pool inlet slope section on a straight-line section of the tunnel, and calculating the pool depth of a stilling pool through a derived bend stilling pool computing method; enabling the gradient of the bend stilling pool inlet slope to be the same as the injection angle of the flow, arranging stairs at the lower part of the inlet slope, and enabling the width of the bend stilling pool to be the same as the width of the tunnel body; arranging a bend stilling pool outlet slope section on a downstream straight-line section, arranging a stair-type slope at the stilling pool outlet slope section, and calculating the total length of the stilling pool, wherein the stair height is 1 / 2 of the pool depth of the stilling pool optimally. According to the method, the flow regime of the high velocity flow of the sharp bend section in the free-flow tunnel is improved, and the flow regime of the high velocity flows of various bends or the flow regime of middle and low velocity flows of sharp bend sections in the free-flow tunnel can be improved the same, so that the curve layout of the free-flow tunnel is more flexible, and the method has quite good practicability and application prospect.